Pull-down type opening clamp

Abstract

The utility model discloses a pull-down type opening clamp which comprises a clamp seat, a first pin shaft, a second pin shaft, a first clamp block, a second clamp block, a clamp block opening spring, a barrel, a cone, a steel wire rope and a clamp block clamping spring. Each of the first clamping block and the second clamping block sequentially comprises a clamping part, a spring mounting hole, a shaft hole and a cone pushing part from top to bottom; the barrel is vertically installed at the lower end of the clamping seat, a barrel hole is formed in the barrel, the cone and the clamping block clamping spring are installed in the barrel hole, the clamping block clamping spring is located at the lower end of the cone, and the cone is matched with the cone pushing part of the first clamping block and the cone pushing part of the second clamping block in a pushing mode. The steel wire rope movably penetrates through the cylinder and the clamping block clamping spring and is connected with the cone. The first clamping block and the second clamping block are controlled to be mutually clamped or opened by pulling down the steel wire rope, and operation is convenient and fast; when the lower end of the clamping seat is fixed on an external fixing device, the opening and clamping operations of the first clamping block and the second clamping block cannot be influenced.

Description

TECHNICAL FIELD

[0001] The utility model relates to workpiece's clamping device technical field, especially relate to a kind of open clamps of down pull. BACKGROUND

[0002] At present, in the process of detecting automobile plastic parts, the connecting buckle on the automobile plastic parts often needs to be fixed. The device for positioning the connecting buckle of the automobile plastic part mainly uses a clamp. In the prior art, the clamp for positioning the connecting buckle of the automobile plastic part mainly has two types: the first type of clamp is a clamp driven by a pneumatic cylinder. Its disadvantage is that an air compressor needs to be configured as the driving power source of the pneumatic cylinder, which is high in cost and occupies a large space, is not conducive to the detection of workers, and the clamp driven by the pneumatic cylinder is easy to clamp hands, which is low in safety. The second type of clamp is a manual clamp similar to an alligator clip. Its disadvantages are: 1) the rear end of the clamp needs to be pressed by fingers, and if the pressing force of the fingers is not enough, it is difficult to open the clamp, which is inconvenient to operate; 2) most importantly, the rear end of the clamp needs to be fixed on an external fixing device. After the rear end of the clamp is fixed on the external fixing device, it is difficult for the worker to open or close the clamp by pressing the rear end of the clamp. SUMMARY

[0003] The utility model solves the technical problems of the prior art and provides a down pull open clamp. The clamp can open the clamping parts of the first clamping block and the second clamping block when the steel wire rope is pulled down, and can make the clamping parts of the first clamping block and the second clamping block clamped to each other when the steel wire rope is loosened, which is convenient to operate. The first clamping block and the second clamping block of the clamp are installed on the upper end of the clamp holder and do not extend to the lower end of the clamp holder. Therefore, when the lower end of the clamp holder is fixed on the external fixing device, it will not affect the opening and clamping operation of the first clamping block and the second clamping block.

[0004] The utility model discloses a technical scheme for solving the above technical problems: a down type open clamp, including clamping seat, first pin shaft, second pin shaft, first clamping block, second clamping block, clamping block prop open spring, cylinder, cone, steel wire rope and clamping block clamping spring, first pin shaft and second pin shaft are installed in the upper end of clamping seat in parallel, the position of first clamping block and second clamping block is opposite, and first clamping block and second clamping block respectively from top to bottom include clamping portion, spring mounting hole, shaft hole and cone push portion in proper order, the clamping space is formed between the clamping portion of first clamping block and the clamping portion of second clamping block, one end of clamping block prop open spring is installed in the spring mounting hole of first clamping block, and the other end of clamping block prop open spring is installed in the spring mounting hole of second clamping block, the shaft hole of first clamping block is rotatably installed outside first pin shaft, and the shaft hole of second clamping block is rotatably installed outside second pin shaft, the cylinder is vertically installed at the lower end of clamping seat, is equipped with cylinder hole in the cylinder, cone and clamping block clamping spring are installed in the cylinder hole respectively, clamping block clamping spring is located at the lower end of cone, and the cone push portion of first clamping block and the cone push portion of second clamping block are pushed and cooperate, the steel wire rope passes through cylinder and clamping block clamping spring and is connected with cone.

[0005] In the above technical scheme, the upper end of the clamping seat is provided with two pin shaft mounting plates in parallel, the first pin shaft is installed between one end of the two pin shaft mounting plates, and the second pin shaft is installed between the other end of the two pin shaft mounting plates. Further, a limiting protrusion is arranged on the middle part of each of the two pin shaft mounting plates, and the limiting protrusion is used to limit the clamping end position of the first clamping block and the second clamping block.

[0006] In the above technical scheme, the clamping portions of the first clamping block and the second clamping block are respectively provided with square cavities, and the square cavities form a square clamping space therebetween. The upper end of the square cavity is provided with a cavity opening.

[0007] In the above technical scheme, the middle lower end of the clamping seat is provided with a cylinder mounting hole, and the upper end of the cylinder is fixedly installed in the cylinder mounting hole.

[0008] In the above technical scheme, the inner wall of the lower end of the cylinder hole of the cylinder is provided with a spring mounting ring, the lower end of the cone is provided with a spring mounting column, the lower end of the clamping block clamping spring abuts against the spring mounting ring, and the upper end of the clamping block clamping spring is sleeved outside the spring mounting column.

[0009] In the above technical scheme, the middle part of the cone is provided with a through cone hole, the upper end of the steel wire rope is connected with an anti-loosening connector, the steel wire rope passes through the cone hole from top to bottom, and the anti-loosening connector is positioned at the upper end of the cone.

[0010] In the above technical scheme, the clamping seat is provided with a plurality of mounting holes.

[0011] The utility model discloses the beneficial effect is: the utility model discloses in the operation process, when the hand or mechanical hand does not pull down the steel wire rope, the cone in the cylinder is under the elastic action of the clamping block clamping spring, will be between the cone push -off of first clamping block and the cone push -off of second clamping block, make the cone push -off of first clamping block and the cone push -off of second clamping block can not close, and further make the clamping of first clamping block and the clamping of second clamping block can not open, and the open clamping of down -pulling type is in the clamping state, when the hand or mechanical hand pulls down the steel wire rope, the steel wire rope drives the cone to overcome the elasticity in the cylinder hole of the clamping block clamping spring and move down, at this time, the cone removes from between the cone push -off of first clamping block and the cone push -off of second clamping block and moves down, and the clamping block will open the clamping of first clamping block and the clamping of second clamping block, make the open clamping of down -pulling type and be in the open state, when the hand or mechanical hand releases the steel wire rope, the cone will move up again under the elastic action of the clamping block clamping spring, and push away the cone push -off of first clamping block and the cone push -off of second clamping block, make the clamping of first clamping block and the clamping of second clamping block and interclamp, and the open clamping of down -pulling type resets to the clamping state. Therefore, the open clamping of down -pulling type of the utility model can open the clamping of first clamping block and second clamping block when pulling down the steel wire rope, and can make the clamping of first clamping block and second clamping block interclamp when releasing the steel wire rope, convenient operation, the first clamping block and second clamping block of the open clamping of down -pulling type of the utility model are installed on the upper end of the clamping seat, and do not extend to the lower end of the clamping seat, therefore, when the lower end of the clamping seat is fixed on the fixing device outside, will not affect the opening and clamping operation of first clamping block and second clamping block. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the overall structural drawing of the utility model.

[0013] Figure 2 It is the dispersion structural drawing of the first visual angle of the utility model.

[0014] Figure 3 It is the dispersion structural drawing of the second visual angle of the utility model.

[0015] Figure 4 It is the longitudinal section structure drawing of the utility model. DETAILED DESCRIPTION

[0016] The structure principle and working principle of the utility model are further explained in detail below in connection with the drawings.

[0017] As Figures 1-4As shown, the utility model is a kind of down pull type opening clamp, including clamping seat 1, first pin shaft 2, second pin shaft 3, first clamping block 4, second clamping block 5, clamping block prop open spring 6, barrel 7, cone 8, steel wire rope 9 and clamping block clamping spring 10;First pin shaft 2 and second pin shaft 3 are installed in the upper end of clamping seat 1 in parallel, the position of first clamping block 4 and second clamping block 5 is opposite, first clamping block 4 and second clamping block 5 respectively from top to bottom include clamping portion 111, spring mounting hole 112, shaft hole 113 and cone push portion 114;Clamping portion 111 of first clamping block 4 and clamping portion 111 between second clamping block 5 form clamping space 17;One end of clamping block prop open spring 6 is installed in spring mounting hole 112 of first clamping block 4, another end of clamping block prop open spring 6 is installed in spring mounting hole 112 of second clamping block 5;The shaft hole 113 of first clamping block 4 is rotatably installed in first pin shaft 2, and the shaft hole 113 of second clamping block 5 is rotatably installed in second pin shaft 3;Barrel 7 is vertically installed in the lower end of clamping seat 1, and barrel hole 71 is arranged in barrel 7, cone 8 and clamping block clamping spring 10 are installed in barrel hole 71 respectively, clamping block clamping spring 10 is located in the lower end of cone 8, cone 8 and the cone push portion 114 of first clamping block 4 and the cone push portion 114 of second clamping block 5 are pushed and matched;Steel wire rope 9 is movably threaded through barrel 7 and clamping block clamping spring 10 and is connected with cone 8.The utility model down pull type opening clamp is clamping portion 111 always clamps tight type clamp, the driving force of clamping block clamping spring 10 to push away the cone push portion 114 of first clamping block 4 and the cone push portion 114 of second clamping block 5 of cone 8 is greater than the prop open force of clamping block prop open spring 6 to prop open clamping portion 111 of first clamping block 4 and clamping portion 111 of second clamping block 5.

[0018] The utility model discloses a first clamping block 4 and second clamping block 5 are installed on the upper end of the clamping seat 1, do not extend to the lower end of the clamping seat 1, when the lower end of the clamping seat 1 is fixed on the fixed device (not shown in the figure) of outside, will not affect the opening and clamping operation of the first clamping block 4 and second clamping block 5.

[0019] As Figures 1-4 Shown, the upper end of the clamping seat 1 is provided with two pin shaft mounting plates 12 side by side, the first pin shaft 2 is installed between one end of two pin shaft mounting plates 12, and the second pin shaft 3 is installed between the other end of two pin shaft mounting plates 12. The middle part of two pin shaft mounting plates 12 is respectively provided with a limiting lug 13, and the limiting lug 13 is used for limiting the clamping end position of the first clamping block 4 and second clamping block 5.

[0020] As Figures 1-4As shown, the clamping portions 111 of the first clamping block 4 and the second clamping block 5 are respectively provided with square recesses 171, forming a square clamping space 17 between the two square recesses 171. The upper end of each square recess 171 has a cavity opening 172. The square clamping space 17 facilitates the clamping of square automotive plastic parts connecting buckles.

[0021] like Figures 1-4 As shown, the lower middle part of the clamping seat 1 is provided with a cylinder mounting hole 14, and the upper end of the cylinder 7 is fixedly installed inside the cylinder mounting hole 14. The lower inner wall of the cylinder hole 71 of the cylinder 7 is provided with a spring mounting ring 15, and the lower end of the cone 8 is provided with a spring mounting post 81. The lower end of the clamping block clamping spring 10 abuts against the spring mounting ring 15, and the upper end of the clamping block clamping spring 10 is fitted outside the spring mounting post 81.

[0022] like Figures 1-4 As shown, the cone 8 has a through-hole 82 in the middle, and the upper end of the wire rope 9 is connected to an anti-loosening connector 91. The wire rope 9 passes through the through-hole 82 from top to bottom, and the anti-loosening connector 91 is positioned with the upper end of the cone 8.

[0023] like Figures 1-3 As shown, the clamp 1 is provided with four mounting holes 16; by providing mounting holes 16, the clamp 1 can be fixedly installed on an external fixing device.

[0024] The above description is merely a preferred embodiment of this utility model. Any minor modifications, equivalent changes, and alterations made to the above embodiments based on the technical solution of this utility model shall fall within the scope of the technical solution of this utility model.

Claims

1. A drop front open clamp characterized by: The utility model provides a kind of clamp, it includes clamping seat, first pin shaft, second pin shaft, first clamp block, second clamp block, clamp block prop open spring, cylinder, cone, steel wire rope and clamp block clamping spring;The first pin shaft and the second pin shaft are installed in the upper end of the clamping seat, the position of the first clamp block and the second clamp block is opposite, and the first clamp block and the second clamp block are sequentially included from top to bottom clamping part, spring mounting hole, shaft hole and cone push part respectively;The clamping space is formed between the clamping part of the first clamp block and the clamping part of the second clamp block;One end of the clamp block prop open spring is installed in the spring mounting hole of the first clamp block, and the other end of the clamp block prop open spring is installed in the spring mounting hole of the second clamp block;The shaft hole of the first clamp block is rotatably installed outside the first pin shaft, and the shaft hole of the second clamp block is rotatably installed outside the second pin shaft;The cylinder is vertically installed in the lower end of the clamping seat, and the cylinder is provided with a cylinder hole, and the cone and the clamp block clamping spring are installed in the cylinder hole respectively, the clamp block clamping spring is located in the lower end of the cone, and the cone is pushed and matched with the cone push part of the first clamp block and the cone push part of the second clamp block;The steel wire rope is movably threaded through the cylinder and the clamp block clamping spring and connected with the cone.

2. The drop-open clamp of claim 1, wherein: The upper end of the clamping seat is provided with two pin shaft mounting plates side by side, the first pin shaft is installed between one end of the two pin shaft mounting plates, and the second pin shaft is installed between the other end of the two pin shaft mounting plates.

3. The drop-open clamp of claim 2, wherein: Limiting protrusions are respectively arranged on the middle part of the two pin shaft mounting plates, and the limiting protrusions are used for limiting the clamping end position of the first clamp block and the second clamp block.

4. The drop-open clamp of claim 1, wherein: The clamping parts of the first clamp block and the second clamp block are respectively provided with square cavities, and the square cavities form a square clamping space between them, and the upper end of the square cavity is provided with a cavity opening.

5. The drop-open clamp of claim 1, wherein: The middle lower end of the clamping seat is provided with a cylinder mounting hole, and the upper end of the cylinder is fixedly installed in the cylinder mounting hole.

6. The drop-open clamp of claim 1, wherein: The inner wall of the lower end of the cylinder hole of the cylinder is provided with a spring mounting ring, the lower end of the clamp block clamping spring is in abutment with the spring mounting ring, and the upper end of the clamp block clamping spring is sleeved outside the spring mounting column.

7. The drop-open clamp of claim 1, wherein: The middle part of the cone is provided with a through cone hole, the upper end of the steel wire rope is connected with an anti-loosening connector, the steel wire rope passes through the cone hole from top to bottom, and the anti-loosening connector is positioned with the upper end of the cone.

8. The drop-open clamp of claim 1, wherein: The clamping seat is provided with a plurality of mounting holes.

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