1. Technical Field
The present disclosure relates to external surface measuring apparatuses, and particularly to a external surface measuring apparatus measuring physical characteristics.
2. Description of Related Art
A plurality of buttons can be found mounted on an external surface of an electronic device. When manufacturing the electronic device, the height difference between the buttons and the external surface and the gap between sidewalls of the buttons and the external surface need to be measured. However, different steps are required to carry out the abovementioned measuring, which reduces efficiency.
Many aspects of the present embodiments can be better understood with reference to the following drawings. The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the present embodiments. Moreover, in the drawings, all the views are schematic, and like reference numerals designate corresponding parts throughout the several views.
The present disclosure, including the accompanying drawings, is illustrated by way of examples and not by way of limitation. It should be noted that references to “an” or “one” embodiment in this disclosure are not necessarily to the same embodiment, and such references mean “at least one”.
The moving element 30 includes two columns 31, a crossbeam 32, a connecting board 33, a guiding board 34, a moving platform 35, and a motor 36. The two columns 31 are distanced and mounted vertically on the base board 10, the crossbeam 32 is mounted horizontally between the two columns 31. The connecting board 33 is slidably mounted on the crossbeam 32. In the present embodiment, the connecting board 33 includes a group of sliding rails 332 at opposite ends, which are engaged with the edges of the crossbeam 32 so that the connecting board 33 can slide along the X-axis direction of the base board 10. The guiding board 34 is mounted along the Y-axis direction on the base board 10. The moving platform 35 is slidably mounted on the guiding board 34, the moving platform 35 is located furthest from the columns 31 in a initial state. The motor 36 is attached to one end of the guiding board 34 and near to the columns 31. The motor 36 drives the moving platform 35 along the Y-axis direction between the columns 31.
The securing element 50 is attached to the moving platform 35, which secures the workpiece to be measured. The securing element 50 includes a stand board 52, a cylinder 54, and a holding portion 56. The stand board 52 is mounted vertically on the moving platform 35. The cylinder 54 is mounted on an upper end of the stand board 52. In the present embodiment, the cylinder 54 is a rotating cylinder, including a rotating portion 542 trailing the stand board 52. The holding portion 56 is mounted on the cylinder 54, which holds the workpiece. The holding portion 56 includes a supporting board 562, a stopper portion 564, and a retaining portion 566. The supporting board 562 supports a workpiece. One end of the supporting board 562 provides a connecting portion 5622 and a block 5624, the connecting portion 5622 is connected to the rotating portion 542, so that the supporting board 562 can be driven by the cylinder 54. The stopper portion 564 is movably mounted on the opposite end of the supporting board 562 by two elastic pieces 5642, and the stopper portion 564 can move forward or backward from the supporting board 562. The retaining portion 566 is arranged on a central portion of the supporting board 562, which retains the workpiece on the supporting board 562. In the present embodiment, the retaining portion 566 is a lever. One end of the retaining portion 566 extends onto the supporting board 562, and the other end of the retaining portion 566 extends outside the supporting board 562, the supporting board 562 controls the retaining portion 566 to clamp or release the workpiece.
The laser camera 72 and the CCD camera 74 are electrically connected to a computer 92 and a monitor 94 (shown in
Step 1, holding an electronic device 300 in the holding portion 56.
Step 1 further includes the following sub-steps: step 11, pulling the stopper portion 564 away from the supporting board 562, and pressing the outer end of the retaining portion 566. Step 12, placing the electronic device 300 onto the supporting board 562, and abutting one end of the electronic device 300 against the block 5624. Step 13, loosening the stopper portion 564 to allow the stopper portion 564 to move towards the supporting board 562 and abut the other end of the electronic device 300.
Step 2, driving the moving platform 35 to move along the X-axis direction between the columns 31 by the motor 36, and driving the electronic device 300 passing the below of the laser camera 72 and the CCD camera 74 orderly.
Step 3, the laser camera 72 and the CCD camera 74 capture images of the buttons 320 and of the surrounding area, the computer 92 calculates the measurements from the images, and determines whether the assembly of the buttons 320 meets a preset standard, and then the monitor 94 displays the results of comparison.
Step 4, the cylinder 54 drives the supporting board 562 to rotate the electronic device 300, so that another external surface with buttons 320 is presented to the laser camera 72 and the CCD camera 74.
Step 5, the motor 36 drives the moving platform 35 to move backwards, or in the reverse direction, and drives the electronic device 300 to pass in front of the CCD camera 74 and the laser camera 72 in the reverse order.
Step 6, the CCD camera 74 and the laser camera 72 capture images of the buttons 320 and the surrounding area, the computer 92 calculates the measurements from the images, and determines whether the assembly of the buttons 320 meets the preset standard, and then the monitor 94 displays the results of comparison.
The external surface measuring apparatus 100 can, at the same time, take measurements, e.g., of the height difference between the buttons 320 and the external surface and of the gap between sidewalls of the buttons 320 and the external surface of the electronic device 300, and can also take similar measurement of buttons 320 on different external surfaces after rotating the electronic device 300, which is far more efficient. The operation method of the external surface measuring apparatus 100 is automatic and convenient.
Even though numerous characteristics and advantages of the embodiments have been set forth in the foregoing description, together with details of the structure and function of the embodiments, the present disclosure is illustrative only, and changes may be made in detail, especially in the matters of shape, size, and arrangement of parts within the principles of the embodiments to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
Number | Date | Country | Kind |
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2012102207360 | Jun 2012 | CN | national |