Single-drive multi-claw clamping and positioning mechanism

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Through a single-drive multi-jaw clamping positioning mechanism, a single power source drive linkage assembly is used to realize the linked clamping of multiple jaws, which solves the problem that the multi-jaw mechanism in the prior art requires multiple driving sources, reducing costs and improving space efficiency.

CN222570788UActive Publication Date: 2025-03-07BOZHON PRECISION IND TECH CO LTD

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Patent Information

Application Number: CN202420696434.9
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-04-07
Publication Date: 2025-03-07
Estimated Expiration: 2034-04-07

AI Technical Summary

Technical Problem

In the prior art, the clamping mechanism of the multi-jaw jaw requires multiple driving sources, resulting in high manufacturing costs and large installation space.

Method used

A single-drive multi-jaw clamping positioning mechanism is designed to drive the connecting rod assembly through a single power source to achieve clamping or release of multiple jaws.

Benefits of technology

The clamping positioning of special-shaped or regular-shaped products is achieved, which reduces costs, and because the power source and connecting rod assembly are arranged in the same plane, the structure is compact and suitable for use in narrow spaces.

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Abstract

The utility model relates to a single-drive multi-jaw clamping and positioning mechanism, which comprises a support body, a plurality of clamping jaws and a plurality of clamping jaws, the power source is installed on the supporting body, and the power source serves as driving power for clamping of the clamping jaw; the rotating shaft is mounted on the supporting body; the connecting rod assembly is installed on the supporting body, the power source is connected with the connecting rod assembly, the power source is used for driving the connecting rod assembly to be in overall linkage with the rotating shaft as the center, a plurality of clamping jaws are connected to the connecting rod assembly, and the power source drives the clamping jaws through the connecting rod assembly to achieve clamping or releasing. The utility model relates to the technical field of industrial automation, in particular to a single-drive multi-claw clamping and positioning mechanism, which drives a connecting rod component to move in a cam groove through the telescopic movement of a power source to realize the linkage opening or clamping action of a plurality of clamping claws, thereby realizing the clamping and positioning of special-shaped or regular-appearance products. And only one power source is used for clamping and positioning the multilateral linkage product, so that the cost is low.

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Description

Technical Field

[0001] The utility model relates to the technical field of industrial automation, in particular to a single-drive multi-claw clamping and positioning mechanism. Background Art

[0002] In the process of automated assembly, pneumatic grippers are widely used to grip and transfer various workpieces. Generally, pneumatic grippers have poor centering and gripping accuracy, and are directly driven by cylinder power. In the operation of robotic arms, rigid grippers are generally used to grip objects. In actual use, the shapes of the gripped objects vary, so multiple grippers need to be set up to fit the gripping of different objects. In the mechanism with multiple grippers, the following problems generally exist:

[0003] 1. The umbrella-shaped connecting rod single cylinder multi-claw clamping and positioning mechanism, the cylinder telescopic connecting rod movement occupies a large overall space;

[0004] 2. Traditional flat four-side clamping positioning requires multiple cylinders to drive the clamps, which is costly.

[0005] For example, at present, when clamping a rectangular product, during its transplanting and placement, the main clamping method is to clamp several sides of the rectangular product to clamp the product and then transplant it. Since multiple surfaces of the rectangular product need to be clamped and positioned during the clamping process, most of the current clamps for rectangular products are designed with a cylinder or a motion mechanism to clamp and position one or two surfaces of a rectangular product. Such a clamp design is not only complex in structure and high in energy consumption, but also increases the production cost. Utility Model Content

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the problem in the prior art that a clamping mechanism with multiple clamping jaws requires multiple driving sources, resulting in high manufacturing costs and a large installation space.

[0007] In order to solve the above technical problems, the utility model provides a single-drive multi-jaw clamping and positioning mechanism, including: a support body, which serves as a supporting component of the clamping jaws; a power source, which is installed on the support body, and the power source serves as a driving power for clamping the clamping jaws; a rotating shaft, which is installed on the support body; a connecting rod assembly, which is installed on the support body, the power source is connected to the connecting rod assembly, and the power source is used to drive the connecting rod assembly to move as a whole around the rotating shaft as the center, and a plurality of clamping jaws are connected to the connecting rod assembly, and the power source drives the plurality of clamping jaws through the connecting rod assembly to achieve clamping or release.

[0008] In one embodiment of the utility model, the power source is connected to a clamp connecting plate 1, and the clamp connecting plate 1 is connected to a clamp 1.

[0009] In one embodiment of the utility model, a slider is connected to the clamping jaw connecting plate, a slide rail is provided on the supporting body, and the slider and the slide rail are slidably connected.

[0010] In one embodiment of the utility model, the connecting rod assembly includes connecting rod one, connecting rod two, connecting rod three and connecting rod four, one end of connecting rod one is connected to clamp connecting plate one, one end of connecting rod two is fixedly connected to clamp connecting plate one, and the other end of connecting rod two is connected to one end of connecting rod three, connecting rod three is sleeved on a rotating shaft, and the other end of connecting rod three is connected to connecting rod four.

[0011] In one embodiment of the utility model, the clamping and positioning mechanism also includes a clamping claw connecting plate 2 and a clamping claw connecting plate 3, the clamping claw connecting plate 2 is fixedly connected to the connecting rod 1, the clamping claw connecting plate 3 is fixedly connected to the connecting rod 4, the clamping claw connecting plate 2 is connected to the clamping claw 2, the clamping claw connecting plate 3 is connected to the clamping claw 3, and the clamping claw 1, the clamping claw 2 and the clamping claw 3 are located at the three corner positions of a triangle.

[0012] In one embodiment of the utility model, the connecting rod assembly also includes a connecting rod five, to which is connected a clamp connecting plate four, to which is connected a clamp four, and the clamp one, clamp two, clamp three and clamp four are located on the four sides of the rectangular cross-section.

[0013] In one embodiment of the utility model, the clamping jaw connecting plate 2 is connected to the slider 2, the clamping jaw connecting plate 3 is connected to the slider 3, the clamping jaw connecting plate 4 is connected to the slider 4, the support body is provided with slide rails 2, 3 and 4, the slider 2 is slidably connected to the slide rail 2, the slider 3 is slidably connected to the slide rail 3, and the slider 4 is slidably connected to the slide rail 4.

[0014] In one embodiment of the utility model, a cam follower 1 is connected to the clamping jaw connecting plate 1, a waist-shaped hole 1 is provided on the connecting rod 1, and the cam follower 1 can slide along the waist-shaped hole 1, the connecting rod 3 is provided with a waist-shaped hole 2 and a waist-shaped hole 3, the connecting rod 2 is provided with a cam follower 2, and the cam follower 2 can slide along the waist-shaped hole 2, the connecting rod 4 is provided with a cam follower 3, and the cam follower 3 can slide along the waist-shaped hole 3, the clamping jaw connecting plate 3 is provided with a cam follower 4, and the connecting rod 5 is provided with a waist-shaped hole 4, and the cam follower 4 can slide along the waist-shaped hole 4.

[0015] In one embodiment of the utility model, the support body includes a shell and a mounting base plate, the shell is in a rectangular box shape, the mounting base plate cover is arranged on the shell, and the power source and the connecting rod assembly are both arranged in a cavity formed by the shell and the mounting base plate.

[0016] In one embodiment of the present invention, the power source is a telescopic cylinder.

[0017] The above technical solution of the utility model has the following beneficial effects compared with the prior art:

[0018] The single-drive multi-claw clamping and positioning mechanism described in the utility model drives the connecting rod assembly to move in the cam groove through the telescopic movement of the power source, thereby realizing the linked opening or clamping action of multiple clamping jaws, thereby realizing the clamping and positioning of special-shaped or regular-shaped products. When the multilateral linkage product is clamped and positioned, only one power source is needed, which has the advantage of low cost. In addition, the power source and the connecting rod assembly are arranged in the same plane with a compact structure, which has certain advantages for narrow spaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to the specific embodiments of the utility model in combination with the accompanying drawings, wherein

[0020] Figure 1 This is a schematic diagram of the appearance structure of a single-drive multi-claw clamping and positioning mechanism in a preferred embodiment of the utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of a single-drive multi-claw clamping and positioning mechanism in a preferred embodiment of the utility model;

[0022] Figure 3 The structure diagram of the single-drive multi-claw clamping and positioning mechanism in the preferred embodiment of the utility model is shown in FIG. Figure 1 ;

[0023] Figure 4 The structure diagram of the single-drive multi-claw clamping and positioning mechanism in the preferred embodiment of the utility model is shown in FIG. Figure 2 .

[0024] Explanation of the reference numerals in the specification: support body 1, slide rail 11, slide rail 2 12, slide rail 3 13, slide rail 4 14, shell 15, mounting base 16, through hole 17, power source 2, clamping jaw connecting plate 1 21, clamping jaw 1 211, clamping protrusion 1 212, cam follower 1 213, slider 1 22, rotating shaft 3, connecting rod assembly 4, connecting rod 1 41, waist-shaped hole 1 411, connecting rod 2 42, cam follower 2 421, connecting rod 3 43, waist-shaped hole 2 431, waist-shaped hole 3 432, connecting rod 4 44, cam follower 3 441, connecting rod 5 45, waist-shaped hole 451, clamping jaw connecting plate 2 5, clamping jaw 2 51, slider 2 52, clamping jaw connecting plate 3 6, clamping jaw 3 61, slider 3 62, cam follower 4 63, clamping jaw connecting plate 4 7, clamping jaw 4 71, slider 4 72. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0026] Reference Figure 1 , 2 As shown, the single-drive multi-jaw clamping and positioning mechanism of the utility model includes: a support body 1, a power source 2, a rotating shaft 3 and a connecting rod assembly 4; the support body 1, which serves as a supporting component of the clamping jaws; the power source 2, which is installed on the support body 1, and the power source 2 serves as a driving power for clamping the clamping jaws; the rotating shaft 3, which is installed on the support body 1; the connecting rod assembly 4, which is installed on the support body 1, the power source 2 is connected to the connecting rod assembly 4, and the power source 2 is used to drive the connecting rod assembly 4 to move as a whole around the rotating shaft 3 as the center, and a plurality of clamping jaws are connected to the connecting rod assembly 4, and the power source 2 drives the plurality of clamping jaws through the connecting rod assembly 4 to achieve clamping or releasing.

[0027] Preferably, the power source 2 is a telescopic cylinder.

[0028] In the above structure, the power source 2 is connected to a clamping claw connecting plate 21, and the clamping claw connecting plate 21 is connected to a clamping claw 211. The clamping claw 211 and the clamping claw connecting plate 21 are arranged vertically, and the end of the clamping claw 211 away from the clamping claw connecting plate 21 is provided with a clamping protrusion 212, and the clamping protrusion 212 and the clamping claw 211 are arranged in a hook shape, and the clamping protrusion 212 is used to hook the product to be clamped. The clamping claw connecting plate 21 is connected to a slider 22, and the support body 1 is provided with a slide rail 11, and the slider 22 and the slide rail 11 are slidably connected.

[0029] Reference Figure 3 , 4 As shown, the connecting rod assembly 4 includes a connecting rod 1 41, a connecting rod 2 42, a connecting rod 3 43 and a connecting rod 4 44, one end of the connecting rod 1 41 is connected to the clamp connecting plate 1 21, one end of the connecting rod 2 42 is fixedly connected to the clamp connecting plate 21, and the other end of the connecting rod 2 42 is connected to one end of the connecting rod 3 43, the connecting rod 3 43 is sleeved on the rotating shaft 3, and the other end of the connecting rod 3 43 is connected to the connecting rod 4 44.

[0030] In addition, the clamping and positioning mechanism further includes a clamping claw connecting plate 2 5 and a clamping claw connecting plate 3 6, the clamping claw connecting plate 2 5 is fixedly connected to the connecting rod 1 41, the clamping claw connecting plate 3 6 is fixedly connected to the connecting rod 4 44, the clamping claw connecting plate 2 5 is connected to the clamping claw 2 51, the clamping claw connecting plate 3 6 is connected to the clamping claw 3 61, and the clamping claw 1 211, the clamping claw 2 51 and the clamping claw 3 61 are located at the three corners of the triangle. The structures of the clamping claw 2 51 and the clamping claw 3 61 are the same as those of the clamping claw 1 211, and the clamping claw 2 51 and the clamping claw 3 61 are both provided with clamping protrusions for limiting the clamped product.

[0031] In the above structure, the connecting rod assembly 4 also includes a connecting rod 5 45, the connecting rod 5 45 is connected to a clamp connecting plate 4 7, the clamp connecting plate 4 7 is connected to a clamp 4 71, the clamp 1 211, the clamp 2 51, the clamp 3 61 and the clamp 4 71 are located on the four sides of the rectangular cross section. The structure of the clamp 4 71 is the same as that of the clamp 1 211, the clamp 2 51 and the clamp 3 61. The clamp connecting plate 2 5 is connected to a slider 2 52, the clamp connecting plate 3 6 is connected to a slider 3 62, the clamp connecting plate 4 7 is connected to a slider 4 72, the support body 1 is provided with a slide rail 2 12, a slide rail 3 13 and a slide rail 4 14, the slide rail 2 52 is slidably connected to the slide rail 2 12, the slide rail 3 62 is slidably connected to the slide rail 3 13, and the slide rail 4 72 is slidably connected to the slide rail 4 14.

[0032] The specific structure of the power source 2 driving the jaw 1 211, the jaw 2 51, the jaw 3 61 and the jaw 4 71 to move synchronously through the connecting rod assembly 4 is as follows: the jaw connecting plate 1 21 is connected with a cam follower 1 213, the connecting rod 1 41 is provided with a waist-shaped hole 1 411, the cam follower 1 213 can slide along the waist-shaped hole 1 411, the connecting rod 3 43 is provided with a waist-shaped hole 2 431 and a waist-shaped hole 3 432, the connecting rod 2 4 2 is provided with a cam follower 2 421, and the cam follower 2 421 can slide along the waist-shaped hole 2 431, the connecting rod 4 is provided with a cam follower 3 441, and the cam follower 3 441 can slide along the waist-shaped hole 3 432, the clamping claw connecting plate 3 6 is provided with a cam follower 4 63, and the connecting rod 5 45 is provided with a waist-shaped hole 451, and the cam follower 4 63 can slide along the waist-shaped hole 451.

[0033] In addition, the support body 1 includes a shell 15 and a mounting base plate 16, the shell 15 is a rectangular box shape, the mounting base plate 16 is covered on the shell 15, and the power source 2 and the connecting rod assembly 4 are both arranged in the cavity formed by the shell 15 and the mounting base plate 16. The shell 15 is provided with through holes 17 on the four side walls, and one end of the clamping claw connecting plate 1 21, the clamping claw connecting plate 2 5, the clamping claw connecting plate 3 6 and the clamping claw connecting plate 4 7 respectively extends out from the corresponding through holes 17, and the clamping claws connected on the clamping claw connecting plate 1 21, the clamping claw connecting plate 2 5, the clamping claw connecting plate 3 6 and the clamping claw connecting plate 4 7 are respectively connected to the ends of the clamping claw connecting plate 1 21, the clamping claw connecting plate 2 5, the clamping claw connecting plate 3 6 and the clamping claw connecting plate 4 7 extending out of the through holes 17, so the clamping claw 1 211, the clamping claw 2 51, the clamping claw 3 61 and the clamping claw 4 71 are respectively located on the four sides of the shell 15. The upper and lower ends of the rotating shaft 3 are respectively arranged on the bottom surface of the housing 15 and the mounting base plate 16 .

[0034] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A single-drive multi-claw clamping and positioning mechanism, characterized in that: include, A support body, which serves as a supporting member for the clamping jaws; A power source, which is mounted on the support body and serves as a driving power for the clamping of the clamping jaws; A rotating shaft mounted on the support body; A connecting rod assembly is installed on a support body, the power source is connected to the connecting rod assembly, and the power source is used to drive the connecting rod assembly to move as a whole around a rotating axis. A plurality of clamps are connected to the connecting rod assembly, and the power source drives the plurality of clamps through the connecting rod assembly to achieve clamping or release.

2. The single-drive multi-claw clamping and positioning mechanism according to claim 1, characterized in that: The power source is connected with a clamping claw connecting plate 1, and the clamping claw connecting plate 1 is connected with a clamping claw 1.

3. The single-drive multi-claw clamping and positioning mechanism according to claim 2 is characterized in that: The clamping jaw connecting plate 1 is connected with a sliding block 1, the supporting body is provided with a sliding rail 1, and the sliding block 1 is slidably connected with the sliding rail 1.

4. The single-drive multi-claw clamping and positioning mechanism according to claim 2, characterized in that: The connecting rod assembly includes connecting rod one, connecting rod two, connecting rod three and connecting rod four, one end of connecting rod one is connected to clamp connecting plate one, one end of connecting rod two is fixedly connected to clamp connecting plate one, and the other end of connecting rod two is connected to one end of connecting rod three, connecting rod three is sleeved on a rotating shaft, and the other end of connecting rod three is connected to connecting rod four.

5. The single-drive multi-claw clamping and positioning mechanism according to claim 4, characterized in that: The clamping and positioning mechanism also includes a clamping claw connecting plate 2 and a clamping claw connecting plate 3, wherein the clamping claw connecting plate 2 is fixedly connected to the connecting rod 1, and the clamping claw connecting plate 3 is fixedly connected to the connecting rod 4. The clamping claw connecting plate 2 is connected to the clamping claw 2, and the clamping claw connecting plate 3 is connected to the clamping claw 3. The clamping claw 1, the clamping claw 2 and the clamping claw 3 are located at the three corner positions of a triangle.

6. The single-drive multi-claw clamping and positioning mechanism according to claim 5, characterized in that: The connecting rod assembly also includes a connecting rod five, to which a clamp connecting plate four is connected, and to which a clamp four is connected. The clamp one, the clamp two, the clamp three and the clamp four are located on the four sides of the rectangular cross section.

7. The single-drive multi-claw clamping and positioning mechanism according to claim 6, characterized in that: The second clamping jaw connecting plate is connected to the second slider, the third clamping jaw connecting plate is connected to the third slider, the fourth clamping jaw connecting plate is connected to the fourth slider, the support body is provided with a second slide rail, a third slide rail and a fourth slide rail, the second slider is slidably connected to the second slide rail, the third slider is slidably connected to the third slide rail, and the fourth slider is slidably connected to the fourth slide rail.

8. The single-drive multi-claw clamping and positioning mechanism according to claim 6, characterized in that: The clamping jaw connecting plate 1 is connected with a cam follower 1, the connecting rod 1 is provided with a waist-shaped hole 1, and the cam follower 1 can slide along the waist-shaped hole 1, the connecting rod 3 is provided with a waist-shaped hole 2 and a waist-shaped hole 3, the connecting rod 2 is provided with a cam follower 2, and the cam follower 2 can slide along the waist-shaped hole 2, the connecting rod 4 is provided with a cam follower 3, and the cam follower 3 can slide along the waist-shaped hole 3, the clamping jaw connecting plate 3 is provided with a cam follower 4, the connecting rod 5 is provided with a waist-shaped hole 4, and the cam follower 4 can slide along the waist-shaped hole 4.

9. The single-drive multi-claw clamping and positioning mechanism according to claim 1, characterized in that: The support body comprises a shell and a mounting base plate, the shell is in a rectangular box shape, the mounting base plate cover is arranged on the shell, and the power source and the connecting rod assembly are both arranged in a cavity formed by the shell and the mounting base plate.

10. The single-drive multi-claw clamping and positioning mechanism according to claim 1, characterized in that: The power source is a telescopic cylinder.