CN212398932U

CN212398932U - Clamp

Info

Publication number: CN212398932U
Application number: CN202020791983.6U
Authority: CN
Inventors: 蒋宝珍
Original assignee: Chengdu Xinjuli Precision Tools Co ltd
Current assignee: Chengdu Xinjuli Precision Tools Co ltd
Priority date: 2020-05-13
Filing date: 2020-05-13
Publication date: 2021-01-26
Anticipated expiration: 2030-05-13

Abstract

The utility model relates to a lathe field, and disclose an anchor clamps, including big telescopic link, the lower extreme fixedly connected with frame of big telescopic link, the inside little telescopic link that is provided with of frame, four sides all are provided with the pivot all around the gallows, the downthehole wall fixed mounting of frame has the pulley shaft, four group's pulley shaft excircle departments all are provided with the pulley, one side that four group's hook approaches mutually is provided with the block rubber, the one side that four group's block rubber is close mutually sets up to the cockscomb structure, the one side fixed mounting that four group's block rubber kept away from mutually has the connective bar, the one side that four group's block rubber kept away from mutually is provided with the spring, the total four groups of springs housing of spring is in connective bar excircle department, four group's spring one end and the block rubber fixed connection other end and hook. The utility model discloses in, there are four group's paws, every four group's paws all have the block rubber that sets up the sawtooth surface, have reached the effect that the product was got to more stable clamp.

Description

Clamp

Technical Field

The utility model relates to a lathe field especially relates to an anchor clamps.

Background

A machine tool holder is a device on a machine tool for holding a workpiece and guiding a tool. Which is a jig specially designed for a certain process of a certain workpiece. Its advantages are compact structure, quick and convenient operation, saving labour and high machining precision and productivity.

The existing clamp in the market generally adopts the design of double-claw, extrudees the side about article simultaneously when pressing from both sides article and presss from both sides the object, but the shape of some article is its surface irregularity of anomalous, when using traditional double-claw anchor clamps to press from both sides it and getting, the article that is pressed from both sides can rotate between double-claw and lead to pressing from both sides and get the failure. To this end, we propose a clamp.

SUMMERY OF THE UTILITY MODEL

The utility model discloses solve the technical problem that above-mentioned prior art exists, provide an anchor clamps.

In order to achieve the above purpose, the present invention adopts the following technical scheme, a clamp comprises an upper end of a large telescopic rod fixedly connected with an external existing device, a lower end of the large telescopic rod is fixedly connected with a frame, the large telescopic rod controls the height of the frame, a small telescopic rod is arranged inside the frame, the upper end of the small telescopic rod is fixedly connected with the inner wall of the top of the frame, a hanger plate is fixedly arranged at the lower end of the small telescopic rod, a hanger is fixedly arranged on the inner wall of the top of the hanger plate, rotating shafts are arranged on the front side, the left side and the right side of the hanger plate, circular holes are respectively arranged on the front side and the left side of the hanger plate, two circular holes respectively extend to the rear side and the right side of the hanger plate, rotating shafts are respectively and fixedly arranged on the circular holes of the hanger plate, four groups of rotating, bearing excircle department fixed mounting has the hook, the excircle department of pivot is provided with the torsional spring, square hole has been seted up to the bottom of frame, the square hole of frame upwards extends to frame top inner wall, the downthehole wall fixed mounting of frame has the pulley spindle, the total four groups of pulley spindle, the pulley spindle is the cylinder, four groups pulley spindle encircles and forms a rectangle, four groups pulley spindle excircle department all is provided with the pulley.

Preferably, the pulley is sleeved at the excircle of the pulley shaft, the surface of the pulley is in contact with the claws, the pulley is used for restricting the moving position of the claws, and a circular hole is formed in the center of one surface of the four groups of claws close to each other.

Preferably, four groups of rubber blocks are arranged on the approaching sides of the four groups of claws, the number of the rubber blocks is four, and the approaching surfaces of the four groups of rubber blocks are in a sawtooth shape.

Preferably, four groups of connecting rods are fixedly installed on the surfaces, far away from each other, of the four groups of rubber blocks, and springs are arranged on the surfaces, far away from each other, of the four groups of rubber blocks.

Preferably, the springs are four groups, the four groups of springs are sleeved at the outer circle of the connecting rod, one ends of the four groups of springs are fixedly connected with the rubber block, the other ends of the four groups of springs are fixedly connected with the hook claw, the four groups of connecting rods penetrate through the circular hole, and the other ends of the four groups of connecting rods are fixedly provided with the baffle.

Advantageous effects

The utility model provides a clamp. The method has the following beneficial effects:

(1) this anchor clamps, the one side that four group's paws approached mutually has the block rubber, and the toughness of block rubber can follow the change of product shape and change, and the block rubber surface is provided with the cockscomb structure, and the roughness that increases the contact surface under the unchangeable condition of pressure increases the friction, and the elasticity of spring tightly extrudes the block rubber, lets the block rubber tightly paste the surface at the product, has reached the effect that improves the anchor clamps reliability.

(2) This anchor clamps, when highly suitable, the height of hanger plate is adjusted to the little telescopic link of control, when the height of hanger plate highly uprises, the hanger plate area is installed the hook on the gallows and is risen together, four groups of hooks of pulley oppression, the hook can begin to shrink along the skidding, four groups of hooks are following four directions of skidding from all around and are shrinking inwards, four groups of hooks are followed four directions and are snatched the product of irregular object, compare with two traditional hooks, novel anchor clamps have reached the effect of getting the product more steadily.

(3) The clamp controls the small telescopic rod to adjust the height of the hanging plate, when the height of the hanging plate is increased, the hanging plate drives the hooks arranged on the hanging bracket to ascend together, when the hooks ascend, the pulley can press four groups of hooks, the hooks can begin to contract along the wheel slip, the four groups of hooks contract, the distance between the hooks becomes small, the four groups of hooks can grab a product from four directions, the hooks can clamp the product more stably, one side of the four groups of hooks which are close to each other is provided with the rubber block, the toughness of the rubber block can change along with the change of the shape of the product, the surface of the rubber block is provided with the saw-toothed shape, the roughness of the contact surface is increased under the condition of unchanged pressure to increase the friction, the elasticity of the spring tightly extrudes the rubber block to enable the rubber block to be tightly attached to the surface of the product, the friction force required when the hooks contract due to the wheel slip is reduced, the loss of the hooks is reduced while the small telescopic rod is more convenient to stretch, and the structure arranged on the hooks enables the small, the utility model discloses internal transmission simple structure does not have complicated drive mechanism to make the utility model discloses internal wear is less when daily use, has reached increase of service life's effect.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the frame structure of the present invention;

FIG. 3 is a schematic view of the hanger of the present invention;

fig. 4 is a schematic view of the pulley shaft structure of the present invention;

fig. 5 is a schematic view of the hook structure of the present invention.

Illustration of the drawings:

1 big telescopic link, 2 little telescopic links, 3 frames, 4 hanger plates, 5 pulleys, 6 paws, 7 bearings, 8 hangers, 9 pivots, 10 pulley shafts, 11 baffles, 12 circular holes, 13 connective bars, 14 rubber blocks, 15 springs.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Example (b): a fixture is shown in figures 1-5, and comprises a large telescopic rod 1, wherein the upper end of the large telescopic rod 1 is fixedly connected with existing external equipment, the lower end of the large telescopic rod 1 is fixedly connected with a frame 3, the large telescopic rod 1 is fixedly arranged at the central position of the outer wall surface of the top of the frame 3, the large telescopic rod 1 controls the height of the frame 3, a small telescopic rod 2 is arranged inside the frame 3, the upper end of the small telescopic rod 2 is fixedly connected with the inner wall of the top of the frame 3, the lower end of the small telescopic rod 2 is fixedly provided with a hanger plate 4, the small telescopic rod 2 controls the height of the hanger plate 4, the large telescopic rod 1 and the small telescopic rod 2 are of the existing structure, details are not described herein, the hanger plate 4 is of a hollow cuboid structure, the inner wall of the top of the hanger plate 4 is fixedly provided with a hanger 8, the front side and the left side of the hanger 8 are respectively provided with a circular hole, two circular holes respectively extend to the rear side and the right side of the hanger 8, the circular holes of the hanger 8 are fixedly provided with rotating shafts 9, four groups of rotating shafts 9 extend to one part of the hanger 8, the outer circles of the parts of the four groups of rotating shafts 9 extending out of the hanger 8 are respectively fixedly provided with a bearing 7, the outer circle of the bearing 7 is fixedly provided with a hook claw 6, the outer circle of the rotating shaft 9 is provided with a torsion spring, the bottom of the frame 3 is provided with a square hole, the square hole of the frame 3 extends upwards to the inner wall of the top of the frame 3, the inner wall surface of the hole of the frame 3 is fixedly provided with pulley shafts 10, the pulley shafts 10 are four groups in total, the pulley shafts 10 are cylindrical, the four groups of pulley shafts 10 form a rectangle in a surrounding, the pulley 5 is sleeved at the outer circle of the pulley shaft 10, the surface of the pulley 5 is contacted with the claws 6, the pulley 5 is used for restricting the movable position of the claws 6, the center position of one surface of four groups of claws 6 close to each other is provided with a circular hole 12, one side of the four groups of claws 6 close to each other is provided with a rubber block 14, the rubber blocks 14 are four groups in total, the surfaces of the four groups of rubber blocks 14 close to each other are arranged into a saw-tooth shape, the surfaces of the four groups of rubber blocks 14 far away from each other are fixedly provided with connecting rods 13, the connecting rods 13 have four groups, the surfaces of the four groups of rubber blocks 14 far away are provided with springs 15, the springs 15 are four groups in total, the springs 15 of the four groups are sleeved at the outer circle of the connecting rod 13, one end of each spring 15 of the four groups is fixedly connected with the rubber block 14, the other end of each spring is fixedly connected with the hook claw 6, the connecting rods 13 of the four groups penetrate through the circular holes 12, and the baffle 11 is fixedly mounted at the other end of each connecting rod 13 of the four groups.

The utility model discloses a theory of operation:

when the lifting appliance is used, the small telescopic rod 2 is controlled to adjust the height of the lifting plate 4, when the height of the lifting plate 4 is increased, the lifting plate 4 drives the hooks 6 arranged on the lifting frame 8 to ascend together, when the hooks 6 ascend, the pulley 5 presses the four groups of hooks 6, the hooks 6 start to shrink along the pulley 5, the four groups of hooks 6 shrink, the distance between the hooks 6 becomes small, the four groups of hooks 6 can grab a product from four directions, the hooks 6 can clamp the product more stably, one surface of the four groups of hooks 6 close to each other is provided with the rubber block 14, the toughness of the rubber block 14 can change along with the change of the shape of the product, the surface of the rubber block 14 is provided with the saw-toothed shape, the roughness of the contact surface is increased under the condition that the pressure is not changed to increase the friction, the elastic force of the spring 15 tightly presses the rubber block 14, the rubber block 14 is tightly attached to the surface of the product, the stability of the clamp is improved, the torsion spring will bring the fingers 6 back and the distance between the fingers 6 will increase so that the fingers 6 will release the gripped product.

Finally, it should be noted that the above embodiments are merely representative examples of the present invention. Obviously, the present invention is not limited to the above-described embodiments, and many modifications are possible. Any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should be considered as belonging to the protection scope of the present invention.

Claims

1. The utility model provides a clamp, includes big telescopic link (1), its characterized in that: the lower end of the large telescopic rod (1) is fixedly connected with a frame (3), the large telescopic rod (1) is fixedly arranged at the central position of the outer wall surface at the top of the frame (3), the small telescopic rod (2) is arranged inside the frame (3), the lower end of the small telescopic rod (2) is fixedly provided with a hanger plate (4), the inner wall of the top of the hanger plate (4) is fixedly provided with a hanger (8), the four sides of the hanger (8) are respectively provided with a rotating shaft (9), the four groups of rotating shafts (9) extend out of the outer circle of the hanger plate (8) and are respectively fixedly provided with a bearing (7), the outer circle of the bearing (7) is fixedly provided with a hook claw (6), the outer circle of the rotating shaft (9) is provided with a torsion spring, the inner wall surface of the hole of the frame (3) is fixedly provided with pulley shafts (10), the pulley shafts (10), four pulley shafts (10) encircle to form a rectangle, four pulley shafts (10) excircle departments all are provided with pulley (5), pulley (5) interior axle and pulley shaft (10) excircle department fixed connection, four groups circular port (12) have been seted up to the central point that the one side was close mutually in hook (6), four groups one side that hook (6) were close mutually is provided with block rubber (14), block rubber (14) are total four groups, four groups one side that block rubber (14) were close mutually sets up the cockscomb structure, four groups one side fixed mounting that block rubber (14) were kept away from has connecting rod (13), connecting rod (13) are total four groups, four groups one side that block rubber (14) were kept away from mutually is provided with spring (15), spring (15) are total four groups, four groups spring (15) cover in connecting rod (13) excircle department, four groups spring (15) one end and block rubber (14) fixed connection other end and hook (6) fixed connection And the four groups of connecting rods (13) penetrate through the circular hole (12), and the other ends of the four groups of connecting rods (13) are fixedly provided with baffle plates (11).

2. A clamp as claimed in claim 1, wherein: the upper end of the small telescopic rod (2) is fixedly connected with the inner wall of the top of the frame (3).

3. A clamp as claimed in claim 1, wherein: circular holes are formed in the front side and the left side of the hanging bracket (8) respectively, the two circular holes extend to the rear side and the right side of the hanging bracket (8) respectively, and the four groups of rotating shafts (9) extend out of the hanging bracket (8) partially.

4. A clamp as claimed in claim 1, wherein: the bottom of the frame (3) is provided with a square hole, and the square hole of the frame (3) upwards extends to the inner wall of the top of the frame (3).

5. A clamp as claimed in claim 1, wherein: the surface of the pulley (5) is contacted with the claw (6).