Clamping hand rubber coating anti-pinch device

Abstract

The utility model discloses a clamping hand rubber coating clamping injury preventing device which comprises a driving box, two incomplete gears, a driving rack, two clamping blocks, two inlaying grooves, two inlaying pieces, a rectangular through hole, two limiting pieces, an assembling piece and a clamping injury preventing mechanism. The driving rack is connected between the two incomplete gears in a meshed mode, the two clamping blocks are fixedly connected to the bottoms of the incomplete gears in the corresponding positions, the two inlaying grooves are symmetrically formed in the opposite faces of the two clamping blocks, and the two inserts are fixedly connected to inner cavities of the inlaying grooves in the corresponding positions. By means of the arrangement of the clamping injury prevention mechanism, through cooperation of the telescopic hole, the telescopic pipe, the movable block, the extension spring, the adjusting screw rod, the first spring installing block, the assembling bolt and the second spring installing block, after the clamping hand clamps a workpiece, extrusion force generated by the clamping hand continuing to conduct clamping motion on the workpiece is reduced, the risk that a product is clamped and injured is reduced, and the production efficiency is improved. And the production cost is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of clamp, especially relates to a clamping hand rubber coating anti - pinch device. BACKGROUND

[0002] Clamp is a common clamping tool, mainly used for fixing, clamping or carrying workpieces, and is widely used in mechanical processing, woodworking, welding and other fields. The material of clamp is usually high-strength steel or cast iron to ensure durability and stability. Because of its simple operation and reliable clamping, clamp has become an indispensable auxiliary tool in industrial production.

[0003] During the use of clamp to clamp workpieces, the surface of workpiece may be pressed, deformed or even damaged due to excessive clamping force, high hardness of the jaw and other factors, especially for precision parts or soft materials. The clamped workpieces increase the production cost, so a clamping hand rubber coating anti - pinch device is needed to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a clamping hand rubber coating anti - pinch device to solve the problems in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a clamping hand rubber coating anti - pinch device, comprising:

[0006] A drive box;

[0007] Two incomplete gears, two said incomplete gears are symmetrically connected to the inner cavity of the drive box;

[0008] A drive rack, said drive rack is meshed between two incomplete gears;

[0009] Two clamping blocks, two said clamping blocks are fixedly connected to the bottom of the corresponding incomplete gear;

[0010] Two inlay grooves, two said inlay grooves are symmetrically provided on the opposite surfaces of two clamping blocks;

[0011] Two inlay pieces, two said inlay pieces are fixedly connected to the inner cavity of the corresponding inlay groove, said inlay piece is made of PU material, which is formed by hot pouring process and installed in the inlay groove;

[0012] A rectangular through hole, said rectangular through hole is provided on the top of the drive box;

[0013] Two limiters, two said limiters are symmetrically arranged on the front and back of the drive rack, said limiter is used for limiting the movement track of the drive rack;

[0014] An assembling part is arranged above the driving box, which is used to connect with the driving device to drive the driving rack to move;

[0015] A pinch-proof mechanism is arranged between the two incomplete gears, which is used to prevent the workpiece from being pinched and deformed by the clamp.

[0016] Preferably, the pinch-proof mechanism comprises:

[0017] An expansion hole is arranged at the top of the driving rack;

[0018] An expansion tube is slidingly sleeved in the inner cavity of the expansion hole;

[0019] A movable block is fixedly connected to the top of the expansion tube;

[0020] A tension spring is arranged in the inner cavity of the expansion tube;

[0021] An adjusting assembly is used to install and adjust the length of the tension spring before it is stretched.

[0022] Preferably, the pinch-proof mechanism further comprises:

[0023] Two anti-slip grooves are symmetrically arranged in the inner wall of the expansion hole;

[0024] Two anti-slip blocks are slidingly sleeved in the inner cavities of the corresponding anti-slip grooves, and are symmetrically fixedly connected to the outer wall of the expansion tube.

[0025] Preferably, the adjusting assembly comprises:

[0026] A long threaded hole is arranged at the top of the movable block;

[0027] An adjusting screw is threadedly connected to the inner wall of the long threaded hole;

[0028] A strip-shaped auxiliary groove is arranged at the top end of the adjusting screw;

[0029] A spring mounting block one is rotationally connected to the bottom end of the adjusting screw;

[0030] A short threaded hole is arranged at the bottom of the driving rack;

[0031] An assembling screw is threadedly connected to the inner wall of the short threaded hole;

[0032] A spring mounting block two is rotationally connected to the top end of the assembling screw, and the tension spring is fixedly connected between the spring mounting block one and the spring mounting block two.

[0033] Preferably, the limiting piece comprises:

[0034] A limiting sliding groove is arranged on the inner wall of the driving box.

[0035] A limiting sliding block is slidingly sleeved in the inner cavity of the limiting sliding groove, and the limiting sliding block is fixedly connected to the outer wall of the driving rack.

[0036] Preferably, the assembly comprises:

[0037] A U-shaped assembly block is fixedly connected to the top of the movable block.

[0038] An assembly hole is arranged on the top of the U-shaped assembly block, and the inner wall of the assembly hole is provided with uniformly distributed internal threads.

[0039] The technical effects and advantages of the utility model are as follows:

[0040] (1) According to the utility model, the cooperation between the telescopic hole, the telescopic pipe, the movable block, the stretching spring, the adjusting screw rod, the spring mounting block one, the assembly bolt and the spring mounting block two can reduce the extrusion force generated by the clamping hand on the workpiece after the clamping hand clamps the workpiece, reduce the risk of the workpiece being clamped, and ensure the production cost.

[0041] (2) According to the utility model, the cooperation between the telescopic hole, the telescopic pipe, the movable block, the stretching spring, the adjusting screw rod, the spring mounting block one, the assembly bolt and the spring mounting block two can reduce the extrusion force generated by the clamping hand on the workpiece after the clamping hand clamps the workpiece, reduce the risk of the workpiece being clamped, and ensure the production cost. BRIEF DESCRIPTION OF DRAWINGS

[0042] Figure 1 It is a three-dimensional structure schematic diagram of the utility model.

[0043] Figure 2 It is a front view structure schematic diagram of the utility model.

[0044] Figure 3 It is a side view structure schematic diagram of the utility model.

[0045] Figure 4 It is a three-dimensional structure schematic diagram of the utility model. Figure 2 It is a three-dimensional structure schematic diagram of the utility model.

[0046] In the figure: 1, drive box; 2, incomplete gear; 3, drive rack; 4, clamp block; 5, inlay; 6, anti-pinch mechanism; 61, telescopic tube; 62, movable block; 63, tension spring; 64, anti-slip block; 65, adjusting screw; 66, spring block one; 67, assembly bolt; 68, spring block two; 7, limiting sliding block; 8, U-shaped assembly block. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0048] The utility model provides a kind of clamp hand bag rubber anti-pinch device as shown in Figures 1-4 It includes drive box 1, two incomplete gears 2, drive rack 3, two clamp blocks 4, two inlay grooves, two inlays 5, rectangular through-hole, two limit pieces, assembly and anti-pinch mechanism 6, two incomplete gears 2 are symmetrically connected in the cavity of drive box 1, drive rack 3 is engaged between two incomplete gears 2, drive rack 3 moves upwards, two incomplete gears 2 rotate away, drive rack 3 moves downwards, two incomplete gears 2 rotate towards each other, two clamp blocks 4 are fixedly connected to the bottom of position corresponding incomplete gear 2, two inlay grooves are symmetrically opened in the opposite surface of two clamp blocks 4, two inlays 5 are fixedly connected to the inner cavity of position corresponding inlay groove, inlay 5 is made of PU material, is formed by hot pouring process and is installed in inlay groove, the shape of inlay 5 can be changed according to actual use demand, rectangular through-hole is opened in the top of drive box 1, two limit pieces are symmetrically arranged on the front and back of drive rack 3, limit piece is used to limit the moving track of drive rack 3, limit piece includes limiting sliding slot and limiting sliding block 7, limiting sliding slot is opened in the inner wall of drive box 1, limiting sliding block 7 is slidably sleeved in the inner cavity of limiting sliding slot, limiting sliding slot and limiting sliding block 7 are used to ensure that drive rack 3 can move stably, limiting sliding block 7 is fixedly connected to the outer wall of drive rack 3, assembly is arranged above drive box 1, assembly is used to be connected with driving equipment to drive drive rack 3 to move, assembly includes U-shaped assembly block 8 and assembly hole, U-shaped assembly block 8 is fixedly connected to the top of movable block 62, assembly hole is opened in the top of U-shaped assembly block 8, the inner wall of assembly hole is provided with evenly distributed internal thread, anti-pinch mechanism 6 is arranged between two incomplete gears 2, anti-pinch mechanism 6 is used to prevent workpiece from being pinched and deformed by clamp;

[0049] The anti-pinch mechanism 6 comprises a telescopic hole, a telescopic tube 61, a movable block 62, a tension spring 63, two anti-slip grooves, two anti-slip blocks 64 and an adjusting assembly, the telescopic hole is arranged at the top of the driving rack 3, the telescopic tube 61 is slidably sleeved in the inner cavity of the telescopic hole, the two anti-slip grooves are symmetrically arranged in the inner wall of the telescopic hole, the two anti-slip blocks 64 are slidably sleeved in the inner cavities corresponding to the anti-slip grooves, the two anti-slip blocks 64 are symmetrically fixedly connected to the outer wall of the telescopic tube 61, the anti-slip grooves and the anti-slip blocks 64 are used for preventing the telescopic tube 61 from being completely separated from the telescopic hole, the movable block 62 is fixedly connected to the top of the telescopic tube 61, the tension spring 63 is arranged in the inner cavity of the telescopic tube 61, the tension spring 63 can be replaced according to actual use requirements, and the adjusting assembly is used for mounting and adjusting the length of the tension spring 63 after the tension spring 63 is stretched.

[0050] The adjusting assembly comprises a long threaded hole, an adjusting screw 65, a strip-shaped auxiliary groove, a spring mounting block one 66, a short threaded hole, an assembling bolt 67 and a spring mounting block two 68, the long threaded hole is arranged at the top of the movable block 62, the outer wall of the adjusting screw 65 is in threaded connection with the inner wall of the long threaded hole, the adjusting screw 65 moves downwards gradually when the adjusting screw 65 is rotated clockwise, at this time, the deformation degree of the tension spring 63 is smaller, and the required force for separating the movable block 62 from the driving rack 3 is reduced, on the contrary, the deformation degree of the tension spring 63 is larger, and the required force for separating the movable block 62 from the driving rack 3 is increased, so that the phenomenon that the movable block 62 is separated from the driving rack 3 before the driving rack 3 drives the incomplete gear 2 to rotate is avoided, and the practicability of the anti-pinch mechanism 6 is improved, the strip-shaped auxiliary groove is arranged at the top end of the adjusting screw 65, the strip-shaped auxiliary groove is used for facilitating the rotation of the adjusting screw 65 by the staff, the shape of the U-shaped assembling block 8 is also used for facilitating the rotation of the adjusting screw 65 by the staff, the spring mounting block one 66 is rotatably connected to the bottom end of the adjusting screw 65, the short threaded hole is arranged at the bottom of the driving rack 3, the outer wall of the assembling bolt 67 is in threaded connection with the inner wall of the short threaded hole, the spring mounting block two 68 is rotatably connected to the top end of the assembling bolt 67, and the tension spring 63 is fixedly connected between the spring mounting block one 66 and the spring mounting block two 68, when it is required to replace the tension spring 63, the assembling bolt 67 is rotated clockwise, when the assembling bolt 67 is completely separated from the short threaded hole, the assembling bolt 67 is pulled downwards, when the tension spring 63 leaks, the connection between the spring mounting block two 68 and the tension spring 63 is released, then the adjusting screw 65 is counterclockwise rotated until the adjusting screw 65 drives the tension spring 63 to move upwards and be separated from the long threaded hole, at this time, the dismounting work of the tension spring 63 is completed, then the tension spring 63 connected with the adjusting screw 65 is replaced, and the above steps are reversely operated.

[0051] The working principle of the utility model:

[0052] When the workpiece is clamped by the clamping hand, the U-shaped assembly block 8, the movable block 62 and the driving rack 3 are driven to move vertically upward by the driving device, the driving rack 3 moving vertically upward drives the two incomplete gears 2 to rotate in opposite directions, so that the two clamping blocks 4 gradually approach to clamp the workpiece, after the inlaid pieces 5 on the two clamping blocks 4 clamp and fix the workpiece, if the driving device still drives the U-shaped assembly block 8 to move, the movable block 62 will be separated from and gradually move away from the driving rack 3, and the tension spring 63 will be deformed under force, the above process will reduce the extrusion force of the two inlaid pieces 5 on the workpiece, reduce the risk of the workpiece being clamped and damaged, and ensure the production cost.

[0053] Finally, it should be noted that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. made within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

Claims

1. A clamping hand bagging anti-pinch device, characterized in that, Include: Drive box (1); Two incomplete gear (2), two said incomplete gear (2) symmetry rotation is connected to the inner cavity of drive box (1); Drive rack (3), the drive rack (3) is engaged between two incomplete gear (2); Two clamping block (4), two said clamping block (4) is fixedly connected to the bottom of the corresponding incomplete gear (2); Two inlay groove, two said inlay groove is symmetrically set in the opposite surface of two clamping block (4); Two inlay (5), two said inlay (5) is fixedly connected to the inner cavity of the corresponding inlay groove, the inlay (5) is made of PU material, which is formed by hot pouring process and installed in the inlay groove; Rectangular hole, the rectangular hole is set in the top of the drive box (1); Two limiters, two said limiters are symmetrically arranged on the front and back of the drive rack (3), and the limiters are used to limit the movement track of the drive rack (3); Assembly, the assembly is arranged above the drive box (1), and the assembly is used to be connected with the driving device to drive the drive rack (3) to move; Anti-pinch mechanism (6), the anti-pinch mechanism (6) is arranged between the two incomplete gear (2), and the anti-pinch mechanism (6) is used to prevent the workpiece from being pinched and deformed.

2. The pinch-bagging anti-pinch device according to claim 1, wherein The anti-pinch mechanism (6) comprises: Expansion hole, the expansion hole is set in the top of the drive rack (3); Expansion tube (61), the expansion tube (61) is slidably connected to the inner cavity of the expansion hole; Movable block (62), the movable block (62) is fixedly connected to the top of the expansion tube (61); Stretching spring (63), the stretching spring (63) is arranged in the inner cavity of the expansion tube (61); Adjusting assembly, the adjusting assembly is used to install and adjust the length of the stretching spring (63) before being stretched.

3. The pinch-bagging anti-pinch device of claim 2, wherein The anti-pinch mechanism (6) further comprises: Two anti-slip grooves, two said anti-slip grooves are symmetrically set in the inner wall of the expansion hole; Two anti-slip blocks (64), two said anti-slip blocks (64) are slidably connected to the inner cavity of the corresponding anti-slip groove, and two said anti-slip blocks (64) are symmetrically fixedly connected to the outer wall of the expansion tube (61).

4. The pinch-bagging anti-pinch device of claim 2, wherein The adjusting assembly comprises: Long threaded hole, the long threaded hole is set in the top of the movable block (62); Adjusting screw (65), the outer wall of the adjusting screw (65) is threadedly connected with the inner wall of the long threaded hole; Strip-shaped auxiliary groove, the strip-shaped auxiliary groove is set in the top end of the adjusting screw (65); Spring block one (66), the spring block one (66) is rotatably connected to the bottom end of the adjusting screw (65); Short threaded hole, the short threaded hole is set in the bottom of the drive rack (3); Assembly bolt (67), the outer wall of the assembly bolt (67) is threadedly connected with the inner wall of the short threaded hole; Spring block two (68), the spring block two (68) is rotatably connected to the top end of the assembly bolt (67), and the stretching spring (63) is fixedly connected between the spring block one (66) and the spring block two (68).

5. The pinch-bagging anti-pinch device of claim 1 wherein, The limiters comprise: Limiting sliding groove, the limiting sliding groove is set in the inner wall of the drive box (1); A limiting sliding block (7) is sleeved and slid in the inner cavity of the limiting sliding groove, and is fixedly connected to the outer wall of the driving rack (3).

6. The pinch-bagging anti-pinch device of claim 2, wherein, The assembly comprises: A U-shaped assembly block (8) is fixedly connected to the top of the movable block (62); An assembly hole is formed in the top of the U-shaped assembly block (8), and the inner wall of the assembly hole is uniformly provided with internal threads.

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