This disclosure relates to the transport, clamping and testing of storage devices.
Disk drive manufacturers typically test manufactured disk drives for compliance with a collection of requirements. Test equipment and techniques exist for testing large numbers of disk drives serially or in parallel. Manufacturers tend to test large numbers of disk drives simultaneously or in batches. Disk drive testing systems typically include one or more tester racks having multiple test slots that receive disk drives for testing. In some cases, the disk drives are placed in carriers which are used for loading and unloading the disk drives to and from the test racks.
The testing environment immediately around the disk drive is closely regulated. Minimum temperature fluctuations in the testing environment are critical for accurate test conditions and for safety of the disk drives. The latest generations of disk drives, which have higher capacities, faster rotational speeds and smaller head clearance, are more sensitive to vibration. Excess vibration can affect the reliability of test results and the integrity of electrical connections. Under test conditions, the drives themselves can propagate vibrations through supporting structures or fixtures to adjacent units. This vibration “cross-talking,” together with external sources of vibration, contributes to bump errors, head slap and non-repetitive run-out (NRRO), which may result in lower yields and increased manufacturing costs. Current disk drive testing systems employ automation and structural support systems that contribute to excess vibrations in the system and/or require large footprints.
In some cases, in order to combat undesirable vibrations, disk drives are clamped to a carrier and/or to a tester rack in such a manner as to inhibit or dampen vibrations.
In one aspect, a storage device transporter, for transporting a storage device and for mounting a storage device within a test slot, includes a frame configured to receive and support a storage device. The frame includes a pair of sidewalls configured to receive a storage device therebetween and sized to be inserted into a test slot along with a storage device. The frame also includes a clamping mechanism operatively associated with at least one of the sidewalls. The clamping mechanism includes a first engagement element and a first actuator operable to initiate movements of the first engagement element. The first actuator is operable to move the first engagement element into engagement with a test slot after a storage device being supported by the frame is arranged in a test position in a test slot.
Embodiments can include one or more of the following features. In some embodiments, the first actuator is operable to move the first engagement element into engagement with a storage device being supported by the frame.
In certain embodiments, the first engagement element includes first and second engagement members. In some cases, the first actuator is operable to initiate movements of the first and second engagement members.
In some embodiments, the first actuator is operable to move the first engagement member into engagement with a test slot after a storage device being supported by the frame is arranged in a test position in a test slot. In some cases, the first actuator is operable to move the second engagement member into engagement with a storage device being supported by the frame.
In certain embodiments, the second engagement member includes a dampener. The dampener may include a dampening material selected from thermoplastics and/or rubberthermosets. The dampener may include an isolating or dampening material.
In some embodiments, the first actuator is operable to move the first and second engagement members in substantially opposite directions relative to each other. In some cases, the first actuator is operable to move the first and second engagement members substantially simultaneously.
In certain embodiments, the first engagement element includes a protuberance configured to engage a mating feature in a test slot.
In some embodiments, the first engagement element includes a dampener. The dampener may include a dampening material selected from thermoplastics and/or rubberthermosets.
In certain embodiments, the first engagement element includes a spring clamp. The spring clamp includes a base portion and first and second spring arms. The first and second spring arms each include a proximal end connected to the base portion and a displaceable distal end. In some cases, the actuator is operable to initiate movements of the distal ends of the first and second spring arms.
In some embodiments, the first actuator is pivotable relative to the frame to initiate movements of the first engagement element.
In certain embodiments, the first actuator includes an elongate body extending from a proximal end to a distal end along a first axis. The first actuator is rotatable about the first axis to initiate movements of the first engagement member.
In some embodiments, the first actuator is linearly displaceable relative to the frame to initiate movements of the first engagement member.
In certain embodiments, a first one of the sidewalls defines a first actuator slot, and the first actuator is at least partially disposed within the first actuator slot. In some cases, the first actuator is moveable within the first actuator slot to initiate movements of the first engagement member.
In some embodiments, the clamping mechanism includes a second engagement element, and the first actuator is operable to initiate movements of the second engagement element. In some cases, the first actuator is operable to move the second engagement element into engagement with a test slot after a storage device being supported by the frame is arranged in a test position in the test slot. In some cases, the first actuator is operable to move the second engagement element into engagement with a storage device being supported by the frame.
In certain embodiments, the clamping mechanism includes a second engagement element, and a second actuator operable to initiate movements of the second engagement element. In some cases, the second actuator is operable independently of the first actuator to initiate movements of the second engagement element. In certain cases, the second actuator is operable to move the second engagement element into engagement with a test slot after a storage device being supported by the frame is arranged in a test position in a test slot. In some cases, the second actuator is operable to move the second engagement element into engagement with a storage device being supported by the frame.
In some embodiments. the first actuator defines actuating features for initiating movements of the first engagement element. In some cases, the actuating features include wedges and recesses.
In certain embodiments, the frame includes a base plate connected to the sidewalls. In some cases, the sidewalls and the base plate together define a substantially U-shaped opening for capturing a storage device off of a support.
In another aspect, a storage device test slot includes a housing that defines a test compartment for receiving and supporting a storage device transporter carrying a storage device for testing. The housing also defines an open end that provides access to the test compartment for insertion and removal of storage device transporter carrying a storage device for testing. The test slot also includes a first engagement element mounted to the housing. The first engagement element is configured to engage a storage device carried by a storage device transporter when a storage device transporter is inserted in the test compartment.
Embodiments can include one or more of the following features. In some embodiments, the first engagement element includes a clamping spring.
In certain embodiments, the first engagement element includes a dampener. In some cases, the dampener is configured to engage a storage device carried by a storage device transporter when a storage device transporter is inserted in the test compartment. In certain cases, the dampener includes a dampening material that includes thermoplastics and rubberthermosets.
In a further aspect, a storage device testing system includes automated machinery and a storage device transporter. The storage device transporter includes a frame configured to receive and support a storage device. The automated machinery is configured to releasably engage the frame to control movement of the storage device transporter. The storage device testing system also includes a loading station for storing storage devices to be tested, and a test slot configured to receive and support a storage device transporter carrying a storage device. The automated machinery is operable to remove storage devices from the loading station utilizing the storage device transporter and insert the storage device transporter, having a storage device therein, into the test slot.
Embodiments can include one or more of the following features. In some embodiments, the automated machinery includes a robot. The robot can include, for example, a moveable arm and a manipulator connected to the moveable arm. In some cases, the manipulator is configured to releasably engage the frame to control movement of the storage device transporter. In certain cases, the robot is operable to remove storage devices from the loading station utilizing the storage device transporter and insert the storage device transporter, having a storage device therein, into the test slot.
In certain embodiments. the frame includes a face plate defining an indentation configured to be releasably engageable by the automated machinery.
In some embodiments, the frame includes a clamping mechanism. In some cases, the clamping mechanism includes a first engagement element and a first actuator operable to initiate movements of the first engagement element. In certain examples, the first actuator is operable to move the first engagement element into engagement with the test slot after a storage device being supported by the frame is arranged in a test position in the test slot. In certain cases, the automated machinery is configured to control operation of the clamping mechanism. In some cases, the frame includes a pair of sidewalls configured to receive a storage device therebetween and sized to be inserted into a test slot along with a storage device for testing of the storage device. In some examples, the clamping mechanism is operatively associated with at least one of the sidewalls.
In yet another aspect, a storage device transporter, for transporting a storage device and for mounting a storage device within a test slot, includes a frame having a pair of sidewalls configured to receive a storage device therebetween and sized to be inserted into a test slot along with a storage device. The frame also includes a base plate connecting the sidewalls. The sidewalls and the base plate together define a substantially U-shaped opening for capturing a storage device off of a support.
In a further aspect, a method of testing a storage device includes actuating automated machinery to engage a storage device transporter; capturing a storage device with the storage device transporter; and then actuating the automated machinery to insert the storage device transporter and the captured storage device into a test slot. Capturing the storage device includes moving the storage device transporter into engagement with the storage device using the automated machinery.
Embodiments can include one or more of the following features. In certain embodiments, actuating the automated machinery includes actuating a robotic arm.
In some embodiments, the storage device transporter includes a clamping mechanism operable to clamp the storage device transporter to the test slot, and the method includes actuating the automated machinery to operate the clamping assembly and thereby clamping the storage device transporter to the test slot after the storage device transporter and the captured storage device are inserted into the test slot.
In certain embodiments, capturing the storage device includes actuating the automated machinery to move the storage device transporter into a position underlying the storage device; and actuating the automated machinery to raise the storage device transporter into a position engaging the storage device.
In another aspect, a method of testing a storage device includes actuating automated machinery to insert a storage device transporter carrying a storage device into a test slot, and actuating the automated machinery to operate a clamping mechanism and thereby clamping the storage device transporter to the test slot after the storage device transporter and the captured storage device are inserted into the test slot.
Embodiments can include one or more of the following features. In some embodiments, actuating automated machinery includes actuating a robotic arm.
In certain embodiments, the method may include actuating the automated machinery to engage the clamping assembly and thereby clamping the storage device transporter to the captured storage device.
In a further aspect, a test slot assembly includes a test slot and a storage device transporter. The test slot includes a housing that defines a test compartment, and an open end, which provides access to the test compartment. The storage device transporter includes a frame configured to receive and support a storage device. The frame includes a pair of sidewalls configured to receive a storage device therebetween and sized to be inserted into the test compartment along with a storage device. The frame also includes a clamping mechanism operatively associated with at least one of the sidewalls. The clamping mechanism includes a first engagement element and a first actuator operable to initiate movements of the first engagement element. The first actuator is operable to move the first engagement element into engagement with the housing after a storage device being supported by the frame is arranged in a test position in the test compartment.
Embodiments can include one or more of the following features. In some embodiments, the first engagement element includes first and second engagement members, and the first actuator is operable to initiate movements of the first and second engagement members. In some examples, the first actuator is operable to move the first engagement member into engagement with the test slot after a storage device being supported by the frame is arranged in a test position in the test compartment, and the first actuator is operable to move the second engagement member into engagement with a storage device being supported by the frame. In some cases, the second engagement member includes a dampener. In some implementations, the first actuator is operable to move the first and second engagement members in substantially opposite directions relative to each other. In some examples, the first actuator is operable to move the first and second engagement members substantially simultaneously.
In certain embodiments, the housing includes a pair of upstanding walls configured to receive the sidewalls of the frame therebetween. In some cases, a first one of the upstanding walls includes an engagement feature, and the first engagement element includes a protuberance configured to engage the engagement feature. In some examples, the first actuator is operable to move the protuberance into engagement with the engagement feature after the sidewalls are inserted into the test compartment.
In still another aspect, a test slot assembly includes a storage device transporter and a housing. The storage device transporter includes a frame configured to receive and support a storage device. The frame includes a pair of sidewalls configured to receive a storage device therebetween. A first one of the sidewalls defines a pass-through aperture. The housing defines a test compartment for receiving and supporting the storage device transporter, and an open end providing access to the test compartment for insertion and removal of the storage device transporter. The test slot assembly also includes a first engagement element mounted to the housing. The first engagement element is configured to extend through the pass-through aperture to engage a storage device carried by the storage device transporter when the storage device transporter is inserted in the test compartment.
In a further aspect, a storage device testing system includes automated machinery and
a storage device transporter. The storage device transporter includes a frame configured to receive and support a storage device. The storage device transporter also includes a clamping mechanism. The clamping mechanism includes a first engagement element, and a first actuator operable to initiate movements of the first engagement element. The automated machinery is configured to control operation of the clamping mechanism.
Embodiments can include one or more of the following features. In some embodiments, the automated machinery is configured to releasably engage the frame to control movement of the storage device transporter
In certain embodiments, the automated machinery includes a robot. The robot may include a moveable arm and a manipulator connected to the moveable arm. In some cases, for example, the manipulator is configured to releasably engage the frame to control movement of the storage device transporter. In some examples, the manipulator is operable to control operation of the clamping mechanism.
In some embodiments, the frame includes a face plate defining an indentation configured to be releasably engageable by the automated machinery.
In another aspect, a method of transporting storage devices for testing includes actuating automated machinery and thereby moving a storage device transporter carrying a first storage device between a first test slot and a loading station; and actuating the automated machinery to operate a clamping mechanism such that the storage device transporter is clamped to the first storage device during movement between the first test slot and the loading station.
Embodiments can include one or more of the following features. In some embodiments. In certain embodiments, moving the storage device transporter between the first test slot and the loading station includes moving the storage device transporter carrying the first storage device from the loading station to the first test slot.
In some embodiments, moving the storage device transporter between the first test slot and the loading station includes moving the storage device transporter carrying the first storage device from the first test slot to the loading station.
In certain embodiments, actuating the automated machinery to operate the clamping mechanism includes clamping the storage device transporter to the first storage device prior to moving the storage device transporter between the first test slot and the loading station.
In some embodiments, actuating the automated machinery to operate the clamping mechanism includes clamping the storage device transporter to the first storage device as the storage device transporter is being moved between the first test slot and the loading station.
In certain embodiments, the method includes actuating the automated machinery to operate the clamping mechanism and thereby unclamping the storage device transporter from the first storage device, and then actuating the automated machinery to insert the storage device transporter and the first storage device into the first test slot. The method may also include actuating the automated machinery to operate the clamping mechanism and thereby clamping the storage device transporter to the first test slot after the storage device transporter and the first storage device are inserted into the first test slot.
In some embodiments, the method includes actuating the automated machinery to operate the clamping mechanism and thereby unclamping the storage device transporter from the first test slot; and then actuating the automated machinery to remove the storage device transporter from the first test slot. In some cases, the method may also include actuating the automated machinery to operate the clamping mechanism and thereby unclamping the storage device transporter from the first storage device prior to removing the storage device transporter from the first test slot.
In certain embodiments, the method includes actuating the automated machinery to operate the clamping mechanism and thereby unclamping the storage device transporter from a second test slot; and then actuating the automated machinery and thereby removing the storage device transporter from the second test slot. In some cases, the method also includes capturing the first storage device from the loading station with the storage device transporter after removing the storage device transporter from the second test slot. Capturing the first storage device includes moving the storage device transporter into engagement with the first storage device using the automated machinery. In some examples, the method also includes actuating the automated machinery to operate the clamping mechanism and thereby unclamping the storage device transporter from a second storage device. Removing the storage device transporter from the second test slot comprises removing the storage device transporter carrying the second storage device from the second test slot. The method may also include actuating the automated machinery and thereby moving the storage device transporter carrying the second storage device between the second test slot and the loading station, and actuating the automated machinery to operate the clamping mechanism such that the storage device transporter is clamped to the second storage device during movements between the second test slot and the loading station. In some cases, the method includes actuating the automated machinery to insert the storage device transporter and the second storage device into a storage device receptacle at the loading station.
In some embodiments, the method includes actuating the automated machinery to insert the storage device transporter into the first test slot; and then actuating the automated machinery to operate the clamping mechanism and thereby clamping the storage device transporter to the first test slot after the storage device transporter is inserted into the first test slot.
In a further aspect, a method of transporting storage devices for testing includes actuating automated machinery and thereby moving a storage device transporter carrying a first storage device between a first test slot and a second test slot; and actuating the automated machinery to operate a clamping mechanism such that the storage device transporter is clamped to the first storage device during movement between the first test slot and the second test slot.
Embodiments can include one or more of the following features. In some embodiments. In certain embodiments, actuating the automated machinery to operate the clamping mechanism includes clamping the storage device transporter to the first storage device prior to moving the storage device transporter between the first test slot and the second test slot.
In some embodiments, actuating the automated machinery to operate the clamping mechanism includes clamping the storage device transporter to the first storage device as the storage device transporter is being moved between the first test slot and the second test slot.
In certain embodiments, moving the storage device transporter between the first test slot and the second test slot includes moving the storage device transporter carrying the first storage device from the first test slot towards the second test slot. In some cases, the method also includes actuating the automated machinery to operate the clamping mechanism and thereby unclamping the storage device transporter from the first test slot; and then actuating the automated machinery to remove the storage device transporter from the first test slot. The method may also include actuating the automated machinery to operate the clamping mechanism and thereby unclamping the storage device transporter from the first storage device prior to removing the storage device transporter from the first test slot.
In some embodiments, the method includes actuating the automated machinery to operate the clamping mechanism and thereby unclamping the storage device transporter from the first storage device, and then actuating the automated machinery to insert the storage device transporter and the first storage device into the second test slot. In some examples, the method also includes actuating the automated machinery to operate the clamping mechanism and thereby clamping the storage device transporter to the second test slot after the storage device transporter and the first storage device are inserted into the second test slot.
The details of one or more embodiments of the invention are set forth in the accompanying drawings and the description below. Other features, objects, and advantages of the invention will be apparent from the description and drawings, and from the claims.
Like reference symbols in the various drawings indicate like elements.
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Each rack 100, in some examples, includes at least one functional testing system 190 in communication with at least one test slot 500. The functional testing system 190 includes a cluster controller 181 and at least one functional interface circuit 191 in electrical communication with the cluster controller (e.g., cluster PC 181). A connection interface circuit 182 is in electrical communication with a storage device 600 within the test slot 500 and the functional interface circuit 182. The functional interface circuit 182 is configured to communicate a functional test routine to the storage device 600. The functional testing system 190 may include a communication switch 192 (e.g. Gigabit Ethernet) to provide electrical communication between the cluster controller 181 and the one or more functional interface circuits 182. The computer 130, communication switch 192, cluster controller 181, and functional interface circuit 191 may communicate on an Ethernet network. However, other forms of communication may be used. The functional interface circuit 191 may communicate to the connection interface circuit 182 via Parallel AT Attachment (a hard disk interface also known as IDE, ATA, ATAPI, UDMA and PATA), SATA, or SAS (Serial Attached SCSI).
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The load station 200 also includes totes 220 configured to be removably mounted within the tote receptacles 212a, 212b. As shown in
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The sidewalls 418 are spaced to receive a storage device 600 (shown in hidden lines) therebetween, and define surfaces 424 for supporting a storage device 600. The sidewalls 418 also define back hooks 426, which can be useful for extracting the storage device 600 from a test slot 500 (e.g., for separating a connector on the storage device from a mating connector in the test slot 500). The sidewalls 418 also define lead-ins 428 (e.g., chamfered edges), which can aid in centering a storage device 600 in the frame 410.
The sidewalls 418 each define a pair of pass-through apertures 430, which extend between inner and outer surfaces 432a, 432b of the sidewalls 418. Following assembly, a corresponding one of the spring clamps 456a, 456b is associated with each of the pass-through apertures 430. The sidewalls 418 also define actuator slots 434 which extend from a proximal end 435 to a distal end 436 of each sidewall 418. The face plate 412 defines a pair of apertures 437 which extend between the first and second surfaces 414, 420 thereof, and which allow access to the actuator slots 434. The sidewalls 418 also define partial through-holes 438 which provide access to the actuator slots 434 from the outer surfaces 432b of the sidewalls 418.
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In use, one of the storage device transporters 400 is removed from one of the test slots 500 with the robot 300 (e.g., by grabbing the indentation 416 of the storage device transporter 400 with the manipulator 312 of the robot 300). As illustrated in
With the storage device 600 in place within the storage device transporter 400, the storage device transporter 400 can be moved by the robotic arm 310 to position the frame 310 and the storage device 600 within one of the test slots 500. The manipulator 312 is operable to control actuation of the clamping mechanism 450 (e.g., by controlling movements of the actuators 454). This allows the clamping mechanism 450 to be actuated before the storage device transporter 400 is moved from the tote 220 to the test slot 500 to inhibit movement of the storage device 600 relative to the storage device transporter 400 during the move. Prior to insertion, the manipulator 312 can again move the actuators 454 to the release position to allow for insertion of the storage device transporter 400 into one of the test slots 500. Moving the actuators 454 to the release position prior to insertion also allows the storage device 600 to move relative to the storage device transporter 400 during insertion, which can aid in aligning the storage device connector 610 with the test slot connector 524. The storage device transporter 400 and storage device 600 are advanced into the test slot 500, via movement of the robotic arm 310, until the storage device 600 is in a test position with the storage device connector 610 engaged with the test slot connector 524. Once the storage device 600 is in the test position, the actuators 454 are moved to the engaged position (e.g., by the manipulator 312) such that the first engagement members 472 engage the storage device 600 to clamp the storage device 600 against movement relative to the storage device transporter 400 and such that the second engagement members 476 engage the engagement features 527 in the test slot 500 to inhibit movement of the storage device transporter 400 relative to the test slot 500. The clamping of the storage device transporter 400 in this manner can help to reduce vibrations during testing.
Following testing, the clamping mechanism can be disengaged by moving the actuators 454 (e.g., with the manipulator 312) to the release position to disengage the engagement members 472, 476 from the storage device 600 and the test slot 500. Once the clamping mechanism 450 is disengaged the storage device transporter 400 and storage device 600 can be withdrawn from the test slot 500, e.g., by engaging the indentation 416 in the face plate 412 with the manipulator 312 and pulling the storage device transporter 400 out of the test slot 500 with the robotic arm 310. During withdrawal, the back hooks 426 of the sidewalls 418 can help in disengaging the storage device connector 610 from the test slot connector 524.
The storage device transporter 400 and the tested storage device 600 can then be returned to the loading station 200 with the robotic arm 310. In some cases, for example, once the storage device transporter 400 is sufficiently withdrawn from the test slot 500, the clamping mechanism 450 can again be actuated (e.g., with the manipulator 312) before the storage device transporter 400 is moved from the test slot 500 to the loading station 200 to inhibit movement of the storage device 600 relative to the storage device transporter 400 during the move. The process can be repeated for each of the storage devices in the loading station 200.
Other embodiments are within the scope of the following claims.
For example, while the test slot assemblies described above includes particular mechanisms for clamping with the storage device transporter, the test slot assemblies can also include other mechanisms for clamping. For example,
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The actuator 710 is rotatable, about the first axis 717, within the actuator slot 712 between an engaged and a release position to initiate movements of the spring clamp 700. As shown in
When the actuator 710 is in the release position, with the spring clamp 700 retracted, a storage device 600 can be inserted into the frame 410b between the sidewalls 425a, 425b, as shown in
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An actuator 760 is operatively associated with the spring clamp 750. The actuator 760 passes through the face plate 412c and into an actuator slot 762 in the first sidewall 429a. As shown in
The actuator 760 is pivotable within the actuator slot 762 between an engaged position and a release position. As illustrated by
The distal ends 755 of the spring arms 753a, 753b can also be retracted by pivoting the actuator 760 to the release position, as shown in
When the actuator 760 is in the release position, with the spring clamp 760 retracted, a storage device 600 can be inserted into the frame 410c between the sidewalls 429a, 429b, as shown in
Elements of different embodiments may be combined to form combinations not specifically described herein. Other details and features combinable with those described herein may be found in the following U.S. patent applications filed concurrently herewith, entitled “DISK DRIVE TESTING”, with attorney docket number: 18523-062001, inventors: Edward Garcia et al., and having assigned Ser. No. 11/958,788; and “DISK DRIVE TESTING”, with attorney docket number: 18523-064001, inventors: Edward Garcia et al., and having assigned Ser. No. 11/958,817, the entire contents of the aforementioned applications are hereby incorporated by reference.
The claims are not limited to the embodiments described herein.
Filing Document | Filing Date | Country | Kind | 371c Date |
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PCT/US2009/040888 | 4/17/2009 | WO | 00 | 1/12/2012 |