Movable clamping jaw based on connecting rod and multi-jaw clamp

Abstract

The utility model aims to solve the problems that an existing clamp is not compact enough in structure and large in occupied space. The utility model provides a movable clamping jaw based on a connecting rod and a multi-jaw clamp. The movable clamping jaw comprises a clamping block used for clamping. The device further comprises a sliding structure, a lifting structure and a connecting rod structure. Wherein the clamping block is arranged on the sliding structure, and the sliding structure helps the clamping block to slide; the lifting structure can ascend or descend in the vertical direction, and the lifting structure is connected with the sliding structure through the connecting rod structure; and the occupied space of the whole device in the direction that the sliding structure drives the clamping blocks to move and clamp is reduced, so that the structure is more compact.

Description

Technical Field

[0001] The utility model relates to the technical field of jigs, in particular to a movable jaw based on a connecting rod and a multi-jaw jig. Background Art

[0002] A jig refers to a device used in the process of mechanical manufacturing to fix the machining object, make it occupy the correct position, and accept construction or inspection, also known as a fixture. Generally speaking, any device used to quickly, conveniently and safely install a workpiece in any process of the technological process can be called a jig. Traditional jigs usually place a power component in the clamping direction and directly apply force in the same direction to achieve clamping. For example, a cylinder is placed or a lead screw is set. The patent with the authorization announcement number CN216730654U discloses a method of realizing rotational clamping by using a lead screw. However, placing a structure that applies power in the clamping direction requires a relatively long space in the clamping direction, which will occupy the space on the jig platform. Therefore, there is a need for a movable jaw and a multi-jaw jig that can change the direction of the applied force to reduce the space occupied in the clamping direction. Summary of the Invention

[0003] The purpose of the utility model is to solve the deficiencies of the prior art and provide a movable jaw based on a connecting rod and a multi-jaw jig.

[0004] To solve the above problems, the utility model adopts the following scheme:

[0005] A movable jaw based on a connecting rod includes a clamping block for clamping; it also includes a sliding structure, a lifting structure and a connecting rod structure; among them, the clamping block is arranged on the sliding structure, and the sliding structure helps the clamping block to slide; the lifting structure can perform ascending or descending actions in the vertical direction, and the lifting structure is connected to the sliding structure through the connecting rod structure.

[0006] Furthermore, it also includes a connecting seat; the sliding structure is arranged on the upper surface of the connecting seat; the inside of the connecting seat is hollowed out, and the connecting rod structure and the lifting structure are arranged inside the connecting seat.

[0007] Furthermore, the connecting rod structure includes a bending part integrally in a "V" shape; the bending part is hinged to the connecting seat at the corner or near the corner; a clamping structure in the shape of a sphere or a circular sheet is arranged at the end of the bending part; embedding grooves corresponding to the clamping structure are respectively arranged on the lifting structure and the sliding structure.

[0008] Furthermore, the sliding structure includes a sliding seat and a sliding block; the sliding seat is fixedly arranged on the upper surface of the connecting seat, and the sliding block is slidably arranged on the sliding seat; a clamping block is also fixedly arranged on the sliding block.

[0009] Further, the sliding seat includes two mirror - image inverted "L" - shaped slide rails with a set spacing between them; the cross - section of the sliding block is "I" - shaped, and the sliding block is embedded between the two slide rails and is in sliding cooperation with the slide rails; a first embedding groove for cooperating with the bending part is provided at the bottom of the sliding block.

[0010] Further, the lifting structure includes a power member for providing lifting power and also includes a movable member for cooperating with the bending part; the movable member is fixedly arranged at the movable end of the power member; a second embedding groove for cooperating with the bending part is provided on the movable member.

[0011] Further, the movable member is a cylinder, and the movable member is in sliding cooperation with a through - hole provided at the bottom of the connecting seat.

[0012] Further, the power member is an oil cylinder or a pneumatic cylinder or an electric cylinder.

[0013] Further, the clamping block is integrally stepped.

[0014] A multi - jaw fixture includes the above - mentioned movable jaws, and the clamping blocks of multiple movable jaws are distributed on the same connecting seat, and different clamping blocks are circularly distributed around a set center.

[0015] The beneficial effects of the present utility model are as follows:

[0016] By connecting the lifting structure and the sliding structure with different movement directions of the link structure together, the occupied space of the whole device in the direction of the sliding structure driving the clamping block to move and clamp is reduced, making the structure more compact;

[0017] By setting the "V" - shaped bending part and cooperating with the clamping structures arranged at both ends of the bending part, the bending part can drive the sliding structure at the other end of the bending part to act while rotating along with the action of the lifting structure;

[0018] By setting the stepped clamping block, it can be used to clamp objects of more sizes;

[0019] By setting that the multi - jaw fixture includes several movable jaws distributed in a circle, the clamping of an object located between the movable jaws is realized. Description of the Drawings

[0020] Figure 1 It is a schematic diagram of the overall structure of the multi - jaw fixture in Embodiment 1;

[0021] Figure 2 It is an exploded view of the overall structure of the multi - jaw fixture in Embodiment 1; Figure 1 ;

[0022] Figure 3 It is an exploded view of the overall structure of the multi - jaw fixture in Embodiment 1; Figure 2 ;

[0023] Figure 4 This is a schematic diagram of the coordination between the bending part, the sliding block and the movable part of Example 1.

[0024] Description of the symbols in the accompanying drawings: clamping block 1, sliding structure 2, sliding seat 21, sliding block 22, first embedding groove 23, lifting structure 3, power part 31, movable part 32, second embedding groove 33, connecting rod structure 4, bending part 41, clamping structure 42, hinged rod 43, connecting seat 5, shell 51, base 52, guide column sleeve 53. DETAILED DESCRIPTION

[0025] The following describes the implementation of the present invention through specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations. The details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0026] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and the figures only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0027] Embodiment 1:

[0028] like Figures 1 to 4 As shown, a movable clamp based on a connecting rod includes a clamping block 1 for clamping, the clamping block 1 is used to resist the object to be clamped to achieve clamping; it also includes a sliding structure 2, a lifting structure 3 and a connecting rod structure 4; wherein the clamping block 1 is arranged on the sliding structure 2, and the sliding structure 2 helps the clamping block 1 to slide; the lifting structure 3 can rise or fall in the vertical direction, and the lifting structure 3 is connected to the sliding structure 2 through the connecting rod structure 4; the connecting rod structure 4 is used to change the direction of the up and down lifting and lowering action of the lifting structure 3, in this case to the horizontal direction, to help the horizontally sliding clamping block 1 to achieve action, thereby overcoming the problem of occupying a large space in the clamping action direction in the traditional clamp.

[0029] It further includes a connecting seat 5; the sliding structure 2 is arranged on the upper surface of the connecting seat 5; the inside of the connecting seat 5 is hollow, and the connecting rod structure 4 and the lifting structure 3 are arranged inside the connecting seat 5. In this example, the connecting seat 5 is integrally a hollow cylindrical shape, and the connecting seat 5 includes two parts, a shell 51 and a base 52, wherein the shell 51 is detachably arranged on the base 52; the connecting rod structure 4 and the sliding structure 2 are arranged inside the shell 51.

[0030] The connecting rod structure 4 includes a bending member 41 integrally in a "V" shape; the bending member 41 is hinged to the connecting seat 5 at the corner part or a part near the corner. In this example, a hinge rod 43 perpendicular to the bending member 41 is arranged at the corner part of the bending member 41, and the hinge rod 43 is rotatably arranged on the shell 51 of the connecting seat 5, so that the bending member 41 can rotate around the hinge rod 43; a clamping structure 42 in a spherical or circular sheet shape is arranged at the end of the bending member 41; embedding grooves corresponding to the clamping structure 42 are respectively arranged on the lifting structure 3 and the sliding structure 2; the clamping structure 42 is clamped into the embedding groove, so that while the bending member 41 can rotate along with the movement of the lifting structure 3, it can drive the sliding structure 2 at the other end of the bending member 41 to move.

[0031] The sliding structure 2 includes a sliding seat 21 and a sliding block 22; the sliding seat 21 is fixedly arranged on the upper surface of the connecting seat 5, and the sliding block 22 is slidably arranged on the sliding seat 21; a clamping block 1 is also fixedly arranged on the sliding block 22. The sliding seat 21 includes two mirror-image rails with an inverted "L" cross-section, and a set distance is provided between the two rails, so that an inverted "T" shaped gap is formed between the two rails; the cross-section of the sliding block 22 is in a "worker" shape, and the sliding block 22 is embedded between the two rails and is slidably matched with the rails; a first embedding groove 23 for cooperating with the bending member 41 is arranged at the bottom of the sliding block 22.

[0032] The lifting structure 3 includes a power member 31 for providing lifting power, and further includes a movable member 32 for cooperating with the bending member 41; the movable member 32 is fixedly arranged at the movable end of the power member 31; a second embedding groove 33 for cooperating with the bending member 41 is arranged on the movable member 32. In this example, the movable member 32 is a cylinder, and the movable member 32 is slidably matched with a through hole arranged on the base 52 of the connecting seat 5; a guide post sleeve 53 is also arranged between the movable member 32 and the base 52 to facilitate controlling the sliding direction of the movable member 32; the power member 31 is an oil cylinder or a cylinder or an electric cylinder; in this example, the power member 31 adopts an oil cylinder, one end of the oil cylinder is fixed at the bottom of the base 52 of the connecting seat 5, and the other end of the oil cylinder is fixedly connected with the movable member 32, and the bending member 41 inside the connecting seat 5 is connected and driven through the movable member 32.

[0033] The clamping block 1 is integrally in a stepped shape, and the steps with different heights of the clamping block 1 can be used to clamp objects of different sizes.

[0034] A multi-jaw fixture includes the above-mentioned movable jaws. The clamping blocks 1 of multiple movable jaws are distributed on the same connecting seat 5. Different clamping blocks 1 are circularly distributed around a set center. The movement direction of the sliding structure 2 of the movable jaw coincides with the radius of the circle, so that the three clamping blocks 1 move in the directions of approaching and departing from the center, realizing approaching and clamping and departing and loosening. In this example, three movable jaws are provided on the connecting seat 5. Among them, the lifting structures 3 of the three movable jaws adopt the same oil cylinder. The movable ends of the oil cylinder are respectively provided with movable parts 32 of the three movable jaws. The three movable parts 32 are respectively connected to the three bending parts 41, realizing that one oil cylinder controls the actions of the three movable jaws at the same time and they approach and clamp or loosen each other.

[0035] During the implementation process, by connecting the lifting structure 3 and the sliding structure 2 with different movement directions through the link structure 4, the occupied space of the whole device in the direction of the sliding structure 2 driving the clamping block 1 to move and clamp is reduced, making the structure more compact; by setting the "V"-shaped bending part 41 and cooperating with the clamping structures 42 arranged at both ends of the bending part 41, the bending part 41 can drive the sliding structure 2 at the other end of the bending part 41 to act while rotating along with the action of the lifting structure 3; by setting the stepped clamping block 1, it can be used to clamp objects of more sizes; by setting that the multi-jaw fixture includes several movable jaws circularly distributed, the clamping of the object located between the movable jaws is realized.

[0036] The above description is only a specific example of the present invention and does not constitute any limitation to the present invention. Obviously, for professionals in the field, after understanding the content and principle of the present invention, various modifications and changes in form and details may be made without departing from the principle and structure of the present invention. However, these corrections and changes based on the idea of the present invention are still within the protection scope of the claims of the present invention.

Claims

1. An active jaw based on a connecting rod, comprising a clamping block (1) for clamping; characterized in that, It further includes a sliding structure (2), a lifting structure (3) and a connecting rod structure (4); wherein the clamping block (1) is arranged on the sliding structure (2), and the sliding structure (2) helps the clamping block (1) to slide; the lifting structure (3) can perform ascending or descending actions in the vertical direction, and the lifting structure (3) is connected to the sliding structure (2) through the connecting rod structure (4).

2. The movable jaw based on a connecting rod according to claim 1, characterized in that, It further includes a connecting seat (5); the sliding structure (2) is arranged on the upper surface of the connecting seat (5); the inside of the connecting seat (5) is hollowed out, and the connecting rod structure (4) and the lifting structure (3) are arranged inside the connecting seat (5).

3. The movable jaw based on a connecting rod according to claim 2, wherein The connecting rod structure (4) includes a bending part (41) with an overall "V" shape; the bending part (41) is hinged to the connecting seat (5) at the corner part or near the corner part; a spherical or circular sheet-like clamping structure (42) is arranged at the end of the bending part (41); embedding grooves corresponding to the clamping structure (42) are respectively arranged on the lifting structure (3) and the sliding structure (2).

4. The movable jaw based on a connecting rod according to claim 3, characterized in that, The sliding structure (2) includes a sliding seat (21) and a sliding block (22); the sliding seat (21) is fixedly arranged on the upper surface of the connecting seat (5), and the sliding block (22) is slidably arranged on the sliding seat (21); the clamping block (1) is also fixedly arranged on the sliding block (22).

5. The movable jaw based on a connecting rod according to claim 4, characterized in that, The sliding seat (21) includes two mirror-image rails with an inverted "L" cross-section, and a set distance is provided between the two rails; the cross-section of the sliding block (22) is "I" shaped, and the sliding block (22) is embedded between the two rails and is slidably matched with the rails; a first embedding groove (23) for cooperating with the bending part (41) is arranged at the bottom of the sliding block (22).

6. The movable jaw based on a connecting rod according to claim 3, wherein The lifting structure (3) includes a power member (31) for providing lifting power, and further includes a movable member (32) for cooperating with the bending part (41); the movable member (32) is fixedly arranged at the movable end of the power member (31); a second embedding groove (33) for cooperating with the bending part (41) is arranged on the movable member (32).

7. The active jaw based on a connecting rod according to claim 6, characterized in that, The movable member (32) is a cylinder, and the movable member (32) is slidably matched with a through hole arranged at the bottom of the connecting seat (5).

8. The movable jaw based on a connecting rod according to claim 6, characterized in that, The power member (31) is an oil cylinder or an air cylinder or an electric cylinder.

9. The movable jaw based on a connecting rod according to claim 1, characterized in that The clamping block (1) is integrally stepped.

10. A multi-jaw fixture, characterized in that, It includes a plurality of movable clamping jaws according to any one of claims 1 to 9, and the clamping blocks (1) of the plurality of movable clamping jaws are distributed on the same connecting seat (5), and different clamping blocks (1) are circularly distributed around a set center.

Images