Mechanical grippers manufactured by mechanical equipment

The mechanical gripper design using rollers and an arc-shaped plate structure solves the problem of unstable gripping in existing technologies, enabling stable gripping of objects of different shapes and improving the versatility and service life of the gripper.

CN224275093UActive Publication Date: 2026-05-26ZHENGZHOU ZHONGDIAN JUSONG COMPLETE SET ELECTRIC CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHENGZHOU ZHONGDIAN JUSONG COMPLETE SET ELECTRIC CO LTD
Filing Date
2025-06-03
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The mechanical gripper plate of the existing mechanical gripper has a planar structure, which results in a small contact area when it comes into contact with cylindrical objects. This makes it unable to fully adapt to the characteristics of curved surfaces, leading to unstable gripping, easy slippage or rotation, and affecting the gripping effect.

Method used

Employing a roller and arc-shaped plate structure, the position of the clamping plate is adjusted by rotating the rollers driven by a motor. Combined with worm gear transmission and ball bearing slide rails, it achieves effective clamping of flat and cylindrical objects, increases clamping stability, and reduces friction loss.

Benefits of technology

It achieves stable clamping of planar and cylindrical objects, improves the versatility and applicability of the gripper, reduces friction loss, and extends the service life of mechanical parts.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of mechanical equipment manufacturing technology and provides a mechanical gripper for manufacturing mechanical equipment. The gripper includes a gripper body, with a first motor fixedly installed inside. A connector is fixedly installed at the bottom of the output shaft of the first motor. Connecting rods are movably connected to both sides of the connector. Movable rods are movably embedded inside the two connecting rods, and sliders are provided at the top of the two movable rods. Slide grooves are formed on both sides of the bottom of the gripper body, and the top outer surfaces of the two sliders are slidably connected to the inner surfaces of the slide grooves. In use, this utility model, through the connection and roller structure, not only can objects be gripped smoothly and efficiently, but the positions of the clamping plate and the arc plate can also be adjusted by reversing the bolts and rotating the rollers, achieving effective gripping of planar and cylindrical objects, increasing the versatility and applicability of the gripper.
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Description

Technical Field

[0001] This utility model relates to the field of mechanical equipment manufacturing technology, and in particular to mechanical grippers for manufacturing mechanical equipment. Background Technology

[0002] Mechanical grippers (also known as clamps or grippers) in machinery manufacturing are mechanical devices used to hold, fix, transport, or manipulate objects. They are commonly used in automation, robotics, assembly lines, and other fields to ensure efficient and precise operation.

[0003] In the prior art, such as Chinese Patent No. CN202322572652.X, this utility model provides a mechanical gripper for manufacturing mechanical equipment, including a connecting shell, a mounting plate, a connecting flange, a sealing shaft, a gear column, an outer swing arm plate, an inner swing arm plate, a mechanical gripper plate, a connecting gear plate, and a connecting shaft. This utility model connects and fixes to the mechanical arm using the mounting plate and connecting bolts, and connects to a power device through a reserved hole for power equipment in the middle of the mounting plate. The rotation of the gear column drives the rotation of the connecting gear plate, which in turn drives the opening and closing of the mechanical gripper plate. Anti-slip pads are used to grip the parts of the mechanical equipment, facilitating processing and improving efficiency. The oil injection and maintenance hole facilitates lubrication and maintenance of the parts inside the connecting shell, improving practicality and extending service life. Indicator lights monitor the working status, improving safety during use.

[0004] While the above-mentioned solutions offer advantages such as ease of processing and improved processing efficiency, the mechanical gripper's planar design results in a relatively small contact area when it comes into contact with a cylindrical object. Because the contact surface of the gripper is planar, it cannot fully adapt to the curved surface characteristics of the cylindrical object. This prevents the gripper from completely covering the surface of the cylindrical object, significantly reducing gripping stability. The small contact area not only leads to uneven force distribution but may also result in insufficient gripping force during clamping, making the object prone to slippage, tilting, or rotation. This clamping method increases the risk of unnecessary damage to the object and may even lead to clamping failure, making stable and precise clamping operations impossible. Utility Model Content

[0005] The purpose of this invention is to solve the problem that the existing mechanical gripper is designed as a planar structure, which results in a relatively small contact surface when the gripper contacts a cylindrical object. This makes it unable to fully adapt to the curved surface characteristics of the cylindrical object, which means that the gripper cannot fully cover the surface of the cylindrical object, resulting in a significant reduction in the stability during clamping.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a mechanical gripper manufactured by a mechanical equipment, comprising a gripper body, a first motor fixedly installed inside the gripper body, a connector fixedly installed at the bottom of the output shaft of the first motor, connecting rods movably connected to both sides of the connector, movable rods movably embedded inside the two connecting rods, sliders provided at the top of the two movable rods, grooves formed on both sides of the bottom of the gripper body, the top outer surfaces of the two sliders slidably connected to the inner surfaces of the grooves, support members fixedly installed at the bottom of the two sliders, rollers movably embedded inside the two support members, and clamping plates fixedly installed on opposite sides of the two rollers.

[0007] In a preferred embodiment, an arc-shaped plate is fixedly installed on the opposite side of each of the two rollers, and bolts are threadedly connected to both sides of the interior of each of the two support members.

[0008] The technical effect of adopting the above-mentioned further solution is that the arc-shaped plate and the clamping plate can be rotated by the roller.

[0009] In a preferred embodiment, threaded grooves are provided on both sides of the interior of the two rollers, and an mounting component is movably fitted on the top of the gripper body.

[0010] The technical effect of adopting the above-mentioned further solution is that the bolt can be embedded into the inside of the threaded groove to fix the roller.

[0011] In a preferred embodiment, all four threaded grooves are matched with the bolts, and a second motor is fixedly installed inside the mounting component.

[0012] The technical effect of adopting the above-mentioned further solution is that the worm gear can be rotated by the second motor.

[0013] In a preferred embodiment, a worm gear is fixedly installed on the left side of the output shaft of the second motor, and a worm wheel is fixedly installed on the top of the gripper body.

[0014] The technical effect of adopting the above-mentioned further solution is that the worm gear can be driven to the worm wheel.

[0015] In a preferred embodiment, the worm gear meshes with the worm, and a plurality of connecting posts are fixedly installed at the bottom of the worm gear.

[0016] The technical effect of adopting the above-mentioned further solution is that the worm gear can drive the gripper body to rotate inside the mounting part.

[0017] In a preferred embodiment, the bottom of each of the connecting columns is provided with ball bearings, and the bottom side of the inner wall of the mounting component is provided with a slide rail.

[0018] The technical effect of adopting the above-mentioned further solution is that the connecting column can drive the ball bearings to move.

[0019] In a preferred embodiment, the outer surfaces of the plurality of balls are all disposed on the inner surface of the slide rail.

[0020] The technical effect of adopting the above-mentioned further solution is that the balls can roll inside the slide rail.

[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0022] 1. In use, this utility model, through the design of the connecting parts and roller structure, can not only clamp objects smoothly and efficiently, but also adjust the position of the clamping plate and the arc plate by reversing the bolt and rotating the roller, thus achieving effective clamping of planar and cylindrical objects. This increases the versatility and applicability of the gripper, and solves the problem that the design of the mechanical gripper plate in the prior art is a planar structure, which results in a relatively small contact surface when the gripper plate contacts a cylindrical object, and cannot fully adapt to the curved surface characteristics of the cylindrical object. This makes it impossible for the gripper plate to fully cover the surface of the cylindrical object, resulting in a significant reduction in clamping stability.

[0023] 2. In use, this utility model, through the setting of the worm gear and ball structure, not only can the gripper body be rotated by the second motor, but the balls also roll on the inner surface of the slide rail, which can reduce the friction between the ball and the slide rail, thereby achieving smoother movement. This not only improves the efficiency of the system, but also reduces energy loss and wear of parts caused by friction, and extends the service life of mechanical parts. Attached Figure Description

[0024] Figure 1 A rear-view three-dimensional structural schematic diagram of the mechanical gripper used in the manufacture of the mechanical equipment provided by this utility model;

[0025] Figure 2 Schematic diagram of the three-dimensional structure of the fixing component of the mechanical gripper used in the manufacture of the mechanical equipment provided by this utility model. Figure 1 ;

[0026] Figure 3 Schematic diagram of the three-dimensional structure of the fixing component of the mechanical gripper used in the manufacture of the mechanical equipment provided by this utility model. Figure 2 ;

[0027] Figure 4 A cross-sectional three-dimensional structural schematic diagram of the gripper body of the mechanical gripper manufactured for the mechanical equipment provided by this utility model.

[0028] Figure 5A partial three-dimensional structural diagram of the mechanical gripper used in the manufacture of the mechanical equipment provided by this utility model.

[0029] Legend:

[0030] 1. Gripper body; 101. First motor; 102. Connector; 103. Connecting rod; 104. Movable rod; 105. Slider; 106. Slide groove; 107. Support; 108. Roller; 109. Clamping plate; 110. Arc plate; 111. Bolt; 112. Threaded groove; 2. Mounting parts; 201. Worm gear; 202. Second motor; 203. Worm; 204. Connecting column; 205. Ball bearing; 206. Slide rail. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Example 1, please refer to Figures 1 to 5 This utility model provides a technical solution: a mechanical gripper manufactured by a mechanical equipment, comprising a gripper body 1, a first motor 101 fixedly installed inside the gripper body 1, a connector 102 fixedly installed at the bottom of the output shaft of the first motor 101, connecting rods 103 movably connected to both sides of the connector 102, movable rods 104 movably embedded inside the two connecting rods 103, and sliders 105 provided at the top of the two movable rods 104, with sliding grooves 106 formed on both sides of the bottom of the gripper body 1, and the top of the two sliders 105... The surfaces are all slidably connected to the inner surface of the slide groove 106. The bottom of each of the two sliders 105 is fixedly installed with a support member 107. Rollers 108 are movably embedded inside each of the two support members 107. Clamping plates 109 are fixedly installed on the opposite side of each of the two rollers 108. Arc plates 110 are fixedly installed on the opposite side of each of the two rollers 108. Bolts 111 are threadedly connected to the inner sides of each of the two support members 107. Threaded grooves 112 are opened on the inner sides of each of the two rollers 108. Mounting member 2 is movably sleeved on the top of the gripper body 1.

[0033] In this embodiment, the operator can first place the object inside the clamping plate 109. Then, through the power supply system of the first motor 101 on the gripper body 1, the first motor 101 is started. When it is running, it can transmit power to the connecting member 102 through the output shaft. When the connecting member 102 rotates, it can pull the movable rod 104 through the connecting rod 103 to move. Then, the movable rod 104 pulls the slider 105 to slide in a relative direction through the slide groove 106. When the slider 105 is moving, it can drive the clamping plate 109 to move synchronously through the support member 107, so that the clamping plate 109 can fit against both sides of the object to clamp and fix it. When a cylindrical object needs to be clamped, the operator can reverse the bolt 111 to disengage it from the threaded groove 112, and then rotate the roller 108 to drive the clamping plate 109 and the arc plate 110 to rotate. This allows the arc plate 110 to be positioned inside the support member 107 for adjustment. Through the structure of the connector 102 and the roller 108, not only can the object be clamped smoothly and efficiently, but the position of the clamping plate 109 and the arc plate 110 can also be adjusted by reversing the bolt 111 and rotating the roller 108, thus achieving effective clamping of both planar and cylindrical objects, increasing the versatility and applicability of the gripper.

[0034] Example 2, as Figures 1 to 5 As shown, the four threaded grooves 112 are all matched with the bolts 111. The second motor 202 is fixedly installed inside the mounting part 2. The worm gear 203 is fixedly installed on the left side of the output shaft of the second motor 202. The worm wheel 201 is fixedly installed on the top of the gripper body 1. The worm wheel 201 meshes with the worm gear 203. Multiple connecting posts 204 are fixedly installed on the bottom of the worm wheel 201. The bottom of the multiple connecting posts 204 is provided with balls 205. The bottom side of the inner wall of the mounting part 2 is provided with a slide rail 206. The outer surfaces of the multiple balls 205 are all set on the inner surface of the slide rail 206.

[0035] In this embodiment, the second motor 202 can be started by the power supply system of the second motor 202 inside the mounting component 2. When running, the second motor 202 is driven by the output shaft to the worm gear 203, which in turn drives the worm wheel 201. The worm wheel 201 then drives the gripper body 1 to rotate. When the worm wheel 201 rotates, it drives the ball bearing 205 to roll on the inner surface of the slide rail 206 through the connecting column 204. Through the structure of the worm wheel 201 and the ball bearing 205, not only can the gripper body 1 be driven to rotate by the second motor 202, but the ball bearing 205 can also roll on the inner surface of the slide rail 206, which can reduce the friction between the ball bearing and the slide rail 206, thereby achieving smoother movement. This not only improves the efficiency of the system, but also reduces energy loss and wear of parts caused by friction, and extends the service life of mechanical parts.

[0036] Working principle: In use, the operator first places the object inside the clamping plate 109. Then, the first motor 101 on the gripper body 1 is started by the power supply system of the first motor 101. When it runs, it can transmit power to the connecting member 102 through the output shaft. When the connecting member 102 rotates, it can pull the movable rod 104 through the connecting rod 103 to move. The movable rod 104 then pulls the slider 105 to slide in a relative direction through the slide groove 106. When the slider 105 moves, it can drive the clamping plate 109 to move synchronously through the support member 107, so that the clamping plate 109 can fit against both sides of the object to clamp it. When a cylindrical object needs to be clamped, the operator can reverse the bolt 111 to disengage it from the threaded groove 112, and then rotate the roller 108 to drive the clamping plate 109 and the arc plate 110 to rotate. This allows the arc plate 110 to be positioned inside the support member 107 for adjustment. Through the structure of the connector 102 and the roller 108, not only can objects be clamped smoothly and efficiently, but the positions of the clamping plate 109 and the arc plate 110 can also be adjusted by reversing the bolt 111 and rotating the roller 108, achieving effective clamping of both planar and cylindrical objects, thus increasing the versatility and applicability of the gripper. In use, the operator can start the second motor 202 through the power supply system of the second motor 202 inside the mounting component 2. When running, the second motor 202 is driven by the output shaft to the worm gear 203, which in turn drives the worm wheel 201. The worm wheel 201 then drives the gripper body 1 to rotate. When the worm wheel 201 rotates, it drives the ball bearing 205 to roll on the inner surface of the slide rail 206 through the connecting column 204. Through the structure of the worm wheel 201 and the ball bearing 205, not only can the gripper body 1 be driven to rotate by the second motor 202, but the ball bearing 205 can also roll on the inner surface of the slide rail 206, which can reduce the friction between the ball bearing and the slide rail 206, thereby achieving smoother movement. This not only improves the efficiency of the system, but also reduces energy loss and wear of parts caused by friction, and extends the service life of mechanical parts.

[0037] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A mechanical gripper manufactured by a mechanical equipment manufacturer, comprising a gripper body (1), characterized in that: The gripper body (1) is fixedly installed with a first motor (101). A connector (102) is fixedly installed at the bottom of the output shaft of the first motor (101). Connecting rods (103) are movably connected to both sides of the connector (102). Movable rods (104) are movably embedded inside the two connecting rods (103). Slider (105) is provided at the top of the two movable rods (104). Slide grooves (106) are provided on both sides of the bottom of the gripper body (1). The top outer surfaces of the two sliders (105) are slidably connected to the inner surface of the slide grooves (106). Support members (107) are fixedly installed at the bottom of the two sliders (105). Rollers (108) are movably embedded inside the two support members (107). Clamping plates (109) are fixedly installed on the opposite side of the two rollers (108).

2. The mechanical gripper manufactured according to claim 1, characterized in that: An arc-shaped plate (110) is fixedly installed on the opposite side of each of the two rollers (108), and bolts (111) are threadedly connected to the inner sides of each of the two support members (107).

3. The mechanical gripper manufactured according to claim 2, characterized in that: Both of the rollers (108) have threaded grooves (112) on their inner sides, and the top of the gripper body (1) is movably fitted with an installation part (2).

4. The mechanical gripper manufactured according to claim 3, characterized in that: The four threaded grooves (112) are all matched with the bolts (111), and the second motor (202) is fixedly installed inside the mounting component (2).

5. The mechanical gripper manufactured according to claim 4, characterized in that: A worm gear (203) is fixedly installed on the left side of the output shaft of the second motor (202), and a worm wheel (201) is fixedly installed on the top of the gripper body (1).

6. The mechanical gripper manufactured according to claim 5, characterized in that: The worm wheel (201) meshes with the worm (203), and a plurality of connecting posts (204) are fixedly installed at the bottom of the worm wheel (201).

7. The mechanical gripper manufactured according to claim 6, characterized in that: The bottom of each of the connecting columns (204) is provided with a ball bearing (205), and the bottom side of the inner wall of the mounting component (2) is provided with a slide rail (206).

8. The mechanical gripper manufactured according to claim 7, characterized in that: The outer surfaces of the plurality of balls (205) are all disposed on the inner surface of the slide rail (206).