1. Technical Field
The present disclosure relates generally to guiding devices and, more particularly, to a guiding device for assembling screws.
2. Description of Related Art
In the manufacturing field, screws are used to connect two or more separate components. The screws are generally screwed into the components via a screw machine, in order to improve the assembling efficiency. The screw machine has a guiding device to ensure assembling the screws are assembled accurately.
A typical guiding device includes a guiding tube and an assembling tube. The guiding tube is obliquely connected and communicates with the assembling tube. A screw driver is partially received in the assembling tube. In use, the screws pass through the guiding tube, and enter in the assembling tube. The guiding tube is configured to guide the screw into the assembling tube, so that a screw cap of the screw can be opposite to the screw driver in the assembling tube. The screw driver drives the screws to engage in the components accurately.
However, when a length of the screws is equal to or less than a width of the screw caps, the screws may turn over in the guiding tube. Therefore, the screw cap may be not opposite to the screw driver in the assembling tube, and the screws may not face holes of the components, thus can not be engaged in the components driven by the screw driver.
Therefore, a guiding device which overcomes the above-described shortcomings is desired.
The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the present disclosure. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views.
Referring to
Referring to
The main body 11 defines a first guiding hole 111 in a center, and a first receiving hole 113 and a second receiving hole 115 in opposite side surfaces. The first receiving hole 113 and the second receiving hole 115 extend along a same axis. An extending direction of the first guiding hole 111 is substantially perpendicular to an extending direction of the first receiving hole 113.
The first positioning portion 13 defines two first connecting holes 131 on opposite sides. The second positioning portion 15 defines two second connecting holes 151 on opposite sides corresponding to the first connecting holes 131. A size of the second positioning portion 15 is larger than that of the first positioning portion 13.
The connecting portion 17 is substantially cylindrical in this embodiment. The connecting portion 17 defines a connecting hole 171 communicating with the first guiding hole 111 of the main body 11.
The first clamping arm 20 includes a first main portion 25, a first fixing portion 21, and a first clamping portion 23. The first fixing portion 21 and the first clamping portion 23 are formed on opposite ends of the first main portion 25. The first main portion 25 defines a pivot hole 251. The first fixing portion 21 defines a first assembling hole 211 in a side surface. The first clamping portion 23 defines a first restricting groove 231, a first guiding groove 233, and a first receiving groove 235. The first guiding groove 233 and the first receiving groove 235 extend along a same direction.
The second clamping arm 30 includes a second main portion 35, a second fixing portion 31, and a second clamping portion 33. The second fixing portion 31 and the second clamping portion 33 are formed on opposite ends of the second main portion 35. The second main portion 35 defines a pivot hole 351. The second fixing portion 31 defines a second assembling hole 311 in a side surface. The second clamping portion 33 defines a second restricting groove 331, a second guiding groove 333, and a second receiving groove 335. The second guiding groove 333 and the second receiving groove 335 extend along a same direction.
In the illustrated embodiment, both the first elastic member 40 and the second elastic member 50 are compression springs.
In assembling the guiding device 100, the first pivot shaft 60 extends through one first connecting hole 131 of the first positioning portion 13, the pivot hole 251 of the first clamping arm 20, and engages in one second connecting hole 151 of the second positioning portion 15. The second pivot shaft 70 extends through another first connecting hole 131 of the first positioning portion 13, the pivot hole 351 of the second clamping arm 30, and engages in another second connecting hole 151 of the second positioning portion 15. Therefore, the first clamping arm 20 and the second clamping arm 30 are rotatably connected to the connecting member 10. The first elastic member 40 is compressed between the first clamping arm 20 and the connecting member 10. One end of the first elastic member 40 is received in the first assembling hole 211 of the first clamping arm 20, and the other end of the first elastic member 40 is received in the first receiving hole 113 of the connecting member 10. The second elastic member 50 is compressed between the second clamping arm 30 and the connecting member 10. One end of the second elastic member 50 is received in the second assembling hole 311 of the second clamping arm 30, and the other end of the second elastic member 50 is received in the second receiving hole 115 of the connecting member 10.
The first clamping portion 23 of the first clamping arm 20 resists the second clamping portion 33 of the second clamping arm 30 because of an elastic force produced by the first elastic member 40 and the second elastic member 50. In that case, the first guiding groove 233 and the second guiding groove 333 cooperatively form a second guiding hole 27 (see
In use, referring to
The guiding device 100 defines the guiding portion 28 and the receiving portion 29 communicating with the guiding portion 28. That is, a T-shaped groove corresponding to the screw 200 is cooperatively formed by the guiding portion 28 and the receiving portion 29. Therefore, the screw 200 can be firmly held by the guiding device 100 before being fastened into the workpiece. That is, the screw 200 cannot turn over in the guiding device 100.
It should be pointed out that one of the first clamping arm 20 and the second clamping arm 30 may be fixed to the connecting member 10, and the other one of the first clamping arm 20 and the second clamping arm 30 is rotatably connected to the connecting member 10. In addition, a connecting interface between the guiding portion 28 and the receiving portion 29 can be curved surfaces, so that the screw 200 can easily be pushed into the T-shaped groove formed by the guiding portion 28 and the receiving portion 29.
It is believed that the present embodiments and their advantages will be understood from the foregoing description, and it will be apparent that various changes may be made thereto without departing from the spirit and scope of the disclosure or sacrificing all of its material advantages.
Number | Date | Country | Kind |
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2008 1 0306625 | Dec 2008 | CN | national |
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Number | Date | Country | |
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20100162855 A1 | Jul 2010 | US |