CN106944811A - Pin removal - Google Patents

Abstract

The present invention provides a kind of pin removal, include pedestal, driving plate, two impellers and two chuck groups, impeller is connected using driving plate, two chuck groups are driven by impeller, the mechanical energy for being exported the pneumatic cylinder of two chuck group amplification pedestals, increase the chucking power of two chuck groups, and pin removal overall volume can be reduced, it is convenient to set with using.

Description

Pin puller

technical field

The present invention relates to a pin puller, in particular to a device that utilizes the linear motion of the driving plate to cause the clamping head to be rotated and clamped, and then by changing the power transmission mode, the mechanical energy output by the pneumatic cylinder is amplified to increase the clamping force of the clamping head. Pin puller.

Background technique

Press, the general circuit board pin puller, such as Taiwan Patent Publication Certificate No. M257244, the clip body moves linearly, the mechanism will be more complicated, and the clamping force of the clip body is completely determined by the air supply equipment. Air pressure, when a large clamping force is required, a large air supply equipment is required, so that the pin puller of the circuit board can generate enough force, which will cause the equipment to be too large and inconvenient to hold, resulting in inconvenience in operation .

Therefore, how to solve the above-mentioned existing problems and deficiencies is a subject that relevant industry players are eager to research and develop.

Contents of the invention

The main purpose of the present invention is to use the push part provided on the drive plate, when the drive plate moves linearly, the push part pushes the guide groove of the pivot shaft, so that the two chuck groups rotate to amplify the mechanical energy output by the pneumatic cylinder , to increase the clamping force of the two chuck sets, and the smaller pneumatic cylinder can make the chuck set generate enough clamping force, thereby effectively reducing the overall volume of the pin puller, which is convenient for installation and use.

To achieve the above purpose, the present invention provides a pin puller, which is characterized in that it includes a base, a drive plate, two pushers and two chuck sets, wherein:

The base has a base plate, and two pivot holes are arranged on the base plate;

The drive plate is located on the side of the base plate of the base, and the drive plate is provided with a perforation through the upper and lower surfaces, and the perforation is directly opposite to the pivot hole of the base;

The push piece has push parts, and each push part is respectively positioned in each through hole of the drive plate;

The collet set has a pivot shaft and a collet, the collet is connected to one end of the pivot shaft, a helical guide groove is formed on the surface of the pivot shaft, and the guide groove is from the side of the surface of the pivot shaft close to the collet to the side away from the collet and the other ends of the pivot shafts away from the chuck are pivotally connected to the pivot holes of the base, so that the pivot shafts are located in the through holes of the drive plate, and the chuck is located on the other side of the drive plate away from the base, so that The pushing part of the pushing piece is located in the guiding groove.

The pin puller, wherein, the drive plate is provided with positioning holes on the side of each perforation, the positioning holes are connected to the perforation, and the pusher has a positioning part, the pusher is arranged at the end of the positioning part, and the positioning part of each pusher respectively positioned in each positioning hole of the driving plate, so that the pushing part is positioned in the perforated hole.

Said pin puller, wherein, the drive plate is provided with a pushing portion protruding from the inner wall of the hole.

In the pin puller, a pneumatic cylinder is arranged under the base plate, and the pneumatic cylinder is connected to the drive plate, and the drive plate is driven by the pneumatic cylinder so that the drive plate can be far away from or close to the base plate.

Said pin puller, wherein, the chuck set is provided with two pivot shafts, and the two pivot shafts are connected with chucks.

The pin puller described above, wherein, the upper ends of each pivot shaft of the chuck group are provided with connecting parts, and each chuck of the chuck group is provided with butt holes penetrating through the upper and lower surfaces, and the connecting parts of each pivot shaft are connected to the ends of each chuck. butt hole.

Said pin puller, wherein, one side of each chuck of the chuck set is provided with a clamping portion, and the clamping portions of each clamping head are in opposite positions.

To sum up, the present invention can solve the deficiencies and deficiencies of the prior art, and can improve the efficacy. The output power is amplified, and the power transmission method is changed from linear to rotary, so that the clamping mechanical energy can be increased, the clamping action is more stable, and the overall volume of the pin puller can also be reduced.

Description of drawings

Fig. 1 is a schematic perspective view of the present invention.

Figure 2 is an exploded view of the present invention.

Fig. 3 is a sectional view of the driving board of the present invention.

Fig. 4 is an operation diagram of the present invention.

Fig. 5 is an action diagram of two chuck groups of the present invention.

FIG. 6 is a schematic diagram of a driving board according to a second embodiment of the present invention.

Description of reference signs: 1-base; 11-base plate; 111-pivot hole; 12-pneumatic cylinder; 2-6-drive plate; 21-61-perforation; 22-positioning hole; Positioning part; 32-611 pushing part; 4- chuck group; 41- pivot shaft; 411- guiding groove; 412- connecting part; 42- chuck; 421- docking hole; pin.

detailed description

Please refer to Fig. 1 to Fig. 5, it can be clearly seen from the figure that the first embodiment of the pin puller of the present invention includes a base 1, a drive plate 2, two pushers 3 and two chuck sets 4, of which:

The base 1 has a base plate 11 , two pivot holes 111 are disposed on the base plate 11 , and a pneumatic cylinder 12 is disposed below the base plate 11 .

The drive plate 2 is located on the side of the base plate 11 of the base 1. The drive plate 2 is provided with a perforation 21 that runs through the upper and lower surfaces, and a positioning hole 22 is provided on the side of the perforation 21. The positioning hole 22 communicates with the perforation 21, and the perforation 21 Directly facing the pivot hole 111 of the base 1 , and the pneumatic cylinder 12 of the base 1 is connected to the driving plate 2 , and the pneumatic cylinder 12 drives the displacement of the driving plate 2 so that the driving plate 2 can be moved away from or close to the base plate 11 .

The pusher 3 has a pusher 32 , the pusher 32 is arranged at the end of the positioning portion 31 , the positioning portions 31 of each pusher 3 are respectively positioned in the positioning holes 22 of the drive plate 2 , and each pusher 32 is respectively located in the through hole 21 .

The chuck group 4 has two pivot shafts 41 and two chucks 42, each chuck 42 is connected to one end of each pivot shaft 41, each pivot shaft 41 surface is formed with a helical guide groove 411, and the guide groove 411 of each pivot shaft The direction of the guide groove 411 spiral is different. The guide groove 411 extends from the side of the surface of the pivot shaft 41 close to the chuck 42 to the side away from the chuck 42, and the upper end of the pivot shaft 41 is provided with a connecting part 412, and each pivot shaft 41 The other end away from the clamp 42 is pivotally connected to the pivot hole 111 of the base 1, so that the pivot shaft 41 is located in the through hole 21 of the drive plate 2, and the clamp 42 is located on the other side of the drive plate 2 away from the base 1, And the chuck 42 is provided with a docking hole 421 that runs through the upper and lower surfaces, and a clamping portion 422 is provided on one side of the chuck 42, the clamping portion 422 is in a relative position, and the connecting portion 412 of each pivot shaft 41 is connected to each chuck 42 of the docking hole 421 , and make the pushing part 32 of the pushing part 3 be located in the guiding groove 411 .

Please refer to Fig. 3 to Fig. 5, it can be clearly seen from the figures that when the pin puller of the present invention is in use, when the pneumatic cylinder 12 of the base 1 drives the driving plate 2 to move upward and move away from the base plate 11, each push When the pushing part 32 of the member 3 pushes each pivot shaft 41 through the guide groove 411 of each pivot shaft 41, since the direction of the guide groove 411 of each pivot shaft is different, each pivot shaft 41 will rotate in the opposite direction, so that each The clamping parts 422 of the chuck 42 are close to each other, and then clamp the positioning pin 5. When the pneumatic cylinder 12 of the base 1 drives the driving plate 2 to move downward and approach the base plate 11, the pushing parts 32 of each pushing member 3 will pass through The guide slots 411 of the pivot shafts 41 push the pivot shafts 41 to rotate, so that the clamping portions 422 of the chucks 42 gradually move away from each other.

Please refer to Fig. 4 and Fig. 6, it can be clearly seen from Fig. 6 that the difference between the second embodiment of the pin puller of the present invention and the first embodiment is that the inner wall of the through hole 61 of the driving plate 6 is provided with The pushing portion 611 can also push the guiding slots 411 of the pivot shafts 41 in this way.

To sum up, the present invention can solve the deficiencies and deficiencies of the prior art, and can improve the efficacy. The force output by the pneumatic cylinder 12 of seat 1 is amplified, and the power transmission mode is changed from linear to rotary, so that the clamping mechanical energy can be increased, the clamping action is more stable, and the overall volume of the pin puller can also be reduced.

Claims (7)

1. A pin puller, characterized in that it includes a base, a drive plate, two pushers and two chuck sets, wherein: The base has a base plate, and two pivot holes are arranged on the base plate; The drive plate is located on the side of the base plate of the base, and the drive plate is provided with a perforation through the upper and lower surfaces, and the perforation is directly opposite to the pivot hole of the base; The push piece has push parts, and each push part is respectively positioned in each through hole of the drive plate; The collet set has a pivot shaft and a collet, the collet is connected to one end of the pivot shaft, a helical guide groove is formed on the surface of the pivot shaft, and the guide groove is from the side of the surface of the pivot shaft close to the collet to the side away from the collet and the other ends of the pivot shafts away from the chuck are pivotally connected to the pivot holes of the base, so that the pivot shafts are located in the through holes of the drive plate, and the chuck is located on the other side of the drive plate away from the base, so that The pushing part of the pushing piece is located in the guiding groove. 2. The pin puller according to claim 1, wherein the drive plate is provided with positioning holes on the side of each perforation, the positioning holes communicate with the perforations, and the pusher has a positioning part, and the pushing part is arranged on the positioning part At the end, the positioning parts of each pusher are respectively positioned in each positioning hole of the drive plate, so that the pusher is located in the through hole. 3 . The pin puller according to claim 1 , wherein a pushing portion protrudes from the inner wall of the hole on the driving plate. 4 . 4. The pin puller according to claim 1, wherein a pneumatic cylinder is arranged under the base plate, and the pneumatic cylinder is connected to the drive plate, and the drive plate is driven by the pneumatic cylinder so that the drive plate can move away from or approach the base plate. 5 . The pin puller according to claim 1 , wherein the chuck set is provided with two pivot shafts, and the chucks are connected to the two pivot shafts. 6. The pin puller according to claim 1, characterized in that, the upper ends of each pivot shaft of the chuck set are provided with connecting parts, and each chuck of the chuck set is provided with butt holes penetrating through the upper and lower surfaces, and each pivot shaft The connecting portion is connected to the docking hole of each chuck. 7 . The pin puller according to claim 1 , wherein a clamping portion is provided on one side of each clamping head of the clamping head group, and the clamping portions of each clamping head are in opposite positions. 8 .