Workpiece gripping device

By designing a workpiece grasping device with multiple groups of grasping components and spherical chucks running synchronously, the problems of high assembly cost and low production efficiency in the existing technology are solved, and efficient and low-cost grasping of various types of workpieces is achieved, and the grasping accuracy and stability are improved.

CN223421797UActive Publication Date: 2025-10-10SICHUAN BMT ITI WELDING EQUIP & ENG CO LTD
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Patent Information

Application Number
CN202422720481.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-07
Publication Date
2025-10-10
Estimated Expiration
2034-11-07

AI Technical Summary

Technical Problem

Existing workpiece gripping devices require extensive customization and adjustment to accommodate workpieces of varying sizes and shapes, resulting in high assembly costs and low production efficiency.

Method used

A workpiece gripping device including a mounting base, a drive assembly and a gripping assembly is designed. Multiple groups of gripping assemblies are driven by a drive motor to operate synchronously to achieve gripping of workpieces of different shapes and sizes. A spherical chuck and locating pins are used to improve stability and precision.

Benefits of technology

It improves the work efficiency of workpiece grasping, reduces labor intensity and production costs, ensures product quality, and reduces error accumulation through synchronous operation, thereby improving grasping accuracy.

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Abstract

The utility model relates to a workpiece grabbing device. Comprising a mounting base, first guide plates are mounted at the two ends of the mounting base in the first direction of the mounting base, and second guide plates are mounted in the direction, away from the first guide plates, of the mounting base in the second direction of the mounting base; the driving assembly comprises a first driving part installed on the first guide plate, a second driving part installed on the second guide plate and a third driving part perpendicularly installed on the second driving part, and the first driving part, the second driving part and the third driving part each comprise a guide seat, a sliding block and a driving motor; the sliding block is connected with the driving end of the driving motor and slides along the guide seat under the driving of the driving motor; and the multiple sets of grabbing assemblies are arranged, the grabbing assemblies are installed on the first driving component and the third driving component correspondingly, each grabbing assembly comprises an air cylinder and a grabbing hand, and the grabbing hand is connected with the driving end of the air cylinder. And low-cost and high-efficiency workpiece grabbing is realized.
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Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing equipment, in particular to a workpiece grasping device. Background Art

[0002] With the rapid development of the automotive manufacturing industry, especially the rise of the new energy vehicle industry, the demand for workpiece gripping devices is increasing. These devices have gradually evolved from manual operations to automated and intelligent equipment to meet the needs of large-scale and high-efficiency production.

[0003] In current industrial practice, the selection of workpiece gripping devices is often based on the specific size and shape of the workpiece being gripped. However, while implementing the technical solutions in the embodiments of this application, the inventors discovered that the aforementioned technology suffers from at least the following technical issues: Faced with diverse production needs, workpiece gripping devices often require extensive customization and adjustment to accommodate workpieces of varying sizes and shapes. This situation not only significantly increases assembly costs but also inevitably leads to a decline in production efficiency, becoming a bottleneck restricting both production efficiency improvements and technological advancements. Utility Model Content

[0004] In view of this, it is necessary to provide a workpiece grasping device to solve the problems of high grasping cost and low grasping efficiency in the prior art.

[0005] The present invention provides a workpiece grasping device, which includes:

[0006] A mounting base, wherein first guide plates are installed at both ends of the mounting base along a first direction of the mounting base, and a second guide plate is installed at a direction of the mounting base away from the first guide plate along a second direction of the mounting base;

[0007] A drive assembly comprising a first drive component mounted on the first guide plate, a second drive component mounted on the second guide plate, and a third drive component mounted perpendicularly to the second drive component, wherein the first drive component, the second drive component, and the third drive component each comprise a guide seat, a slider, and a drive motor, wherein the slider is connected to a drive end of the drive motor and slides along the guide seat under the drive of the drive motor;

[0008] The grabbing components are arranged in multiple groups, each of which is installed on the first driving component and the third driving component respectively. Each of the grabbing components includes a cylinder and a gripper, and the gripper is connected to the driving end of the cylinder.

[0009] The above-mentioned workpiece grasping device can realize the simultaneous grasping of workpieces of different shapes and sizes by simultaneously arranging multiple groups of grasping components on the first drive component and the third drive component, thereby improving work efficiency, reducing manual labor intensity, reducing working time, reducing production costs, and ensuring product quality.

[0010] In some optional embodiments, the gripper comprises:

[0011] A support plate, the support plate being fixedly mounted on the side of the cylinder, and a first chuck being mounted on one end of the support plate along the extension and contraction direction of the cylinder;

[0012] A clamping arm is hinged to the driving end of the cylinder and is located above the first clamping head. A second clamping head is installed on the clamping arm along the direction of the first clamping head.

[0013] In some optional embodiments, the first chuck is a spherical chuck.

[0014] In some optional embodiments, the second chuck is a spherical chuck.

[0015] In some optional embodiments, a fixing assembly is further included, wherein the fixing assembly includes:

[0016] There are two positioning pins, which are respectively installed on both sides of the third driving component and are arranged close to the grabbing assembly.

[0017] In some optional embodiments, a position sensor is further included, and the position sensor is installed on the first driving component.

[0018] In some optional embodiments, the drive motor is a servo motor.

[0019] In some optional embodiments, the cylinder is a telescopic cylinder.

[0020] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages: by providing a mounting seat, a drive assembly, and a gripping assembly, when a workpiece needs to be gripped, the drive motor is started to cause the slider to slide within the guide seat, thereby driving the cylinder to move, and finally driving the gripper to grip the workpiece. In this way, by driving the slider to slide through the drive motor, all grippers can operate synchronously, thereby avoiding the accumulation of errors caused by asynchrony and improving gripping accuracy. This solves the technical problems of high assembly cost and low production efficiency in the prior art, and achieves the beneficial effect of low-cost gripping of various types of workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0023] Figure 1 A schematic structural diagram of a workpiece grasping device in a specific embodiment of the present application is shown;

[0024] Figure 2 A schematic structural diagram of a mounting base in a specific embodiment of the present application is shown;

[0025] Figure 3 A schematic structural diagram of a grabbing assembly in a specific embodiment of the present application is shown;

[0026] Figure 4 A schematic structural diagram of a first driving component, a second driving component, and a third driving component in a specific embodiment of the present application is shown;

[0027] In the figure, 1. mounting seat; 2. first guide plate; 3. second guide plate; 4. first driving component; 5. second driving component; 6. third driving component; 7. cylinder; 8. gripper; 9. support plate; 10. first chuck; 11. clamping arm; 12. second chuck; 13. positioning pin; 14. position sensor; 15. guide seat; 16. slider; 17. driving motor. DETAILED DESCRIPTION

[0028] To make the purpose, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0029] Unless otherwise defined, the technical or scientific terms used in this disclosure should have the usual meanings understood by people with ordinary skills in the field to which this disclosure belongs. The words "first", "second" and similar words used in this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0030] like Figures 1-4 As shown, the present application provides a workpiece grasping device, comprising: a mounting base 1, a first guide plate 2 is installed at both ends of the mounting base 1 along a first direction of the mounting base 1, and a second guide plate 3 is installed at the mounting base 1 in a direction away from the first guide plate 2 along a second direction of the mounting base 1; a driving assembly, comprising a first driving component 4 installed on the first guide plate 2, a second driving component 5 installed on the second guide plate 3, and a third driving component 6 vertically installed on the second driving component 5, the first driving component 4, the second driving component 5 and the third driving component 6 all include a guide base 15, a slider 16 and a driving motor 17, the slider 16 is connected to the driving end of the driving motor 17, and slides along the guide base 15 under the drive of the driving motor 17; a grasping assembly, which is arranged into multiple groups, each grasping assembly is respectively mounted on the first driving component 4 and the third driving component 6, each grasping assembly includes a cylinder 7 and a gripper 8, and the gripper 8 is connected to the driving end of the cylinder 7.

[0031] In this embodiment, the first driving component 4 drives the grasping assembly to move linearly along the X direction, the second driving component 5 is used to drive the third driving component 6 to move along the Y direction, and the third driving component 6 is used to drive the grasping assembly to move linearly along the Z direction. The cylinder 7 is used to drive the gripper 8 to grasp the workpiece. By setting the mounting base 1, the driving component and the grasping component, when it is necessary to grasp the workpiece, the driving motor 17 is started to make the slider 16 slide in the guide base 15, thereby driving the grasping assembly to move, and then the cylinder 7 drives the gripper 8 to grasp the workpiece. In this way, by driving the slider 16 to slide by the driving motor 17, all grippers 8 can be operated synchronously, thereby realizing the grasping of workpieces of different shapes and sizes. The technical problems of high assembly cost and low production efficiency in the prior art are solved, and the beneficial effect of grasping a variety of workpieces at low cost is achieved.

[0032] Preferably, the gripper 8 includes: a support plate 9, which is fixedly mounted on the side of the cylinder 7. A first clamp 10 is mounted on one end of the support plate 9 along the extension and contraction direction of the cylinder 7; and a clamp arm 11, which is hingedly connected to the driving end of the cylinder 7 and located above the first clamp 10. A second clamp 12 is mounted on the clamp arm 11 along the direction of the first clamp 10. In this way, the support plate 9 cooperates to maintain a constant distance between the first clamp 10 and the clamp arm 11, so that the first clamp 10 and the second clamp 12 can act together on the clamped object, thereby improving the clamping stability.

[0033] Preferably, the first chuck 10 is a spherical chuck. A spherical chuck can adapt to different clamping types, thereby expanding the application scenarios of the workpiece gripping device.

[0034] Preferably, the second chuck 12 is a spherical chuck. A spherical chuck can adapt to different clamping types, thereby expanding the application scenarios of the workpiece gripping device.

[0035] Preferably, the workpiece grasping device further includes a fixing assembly, which includes two positioning pins 13, which are respectively mounted on either side of the third drive component 6 and disposed close to the grasping assembly. The positioning pins 13 can make the grasping assembly more stable and reliable.

[0036] Preferably, the workpiece gripping device further comprises a position sensor 14, which is mounted on the first driving component 4. Through the action of the position sensor 14, the gripping state can be detected.

[0037] Preferably, the drive motor 17 is a servo motor. In this way, the drive error can be effectively reduced by the action of the servo motor, thereby further improving the grasping accuracy.

[0038] Preferably, the cylinder 7 is a telescopic cylinder. Like this, through the effect of the telescopic cylinder, various complicated working conditions can be better adapted.

[0039] It should be noted that the components among the various embodiments of the present disclosure can be interchangeable as long as they can play the corresponding roles.

[0040] There are a few points to note:

[0041] (1) Unless otherwise defined, in the embodiments of the present disclosure and the accompanying drawings, the same reference numerals represent the same meanings.

[0042] (2) In the drawings of the embodiments of the present disclosure, only the structures related to the embodiments of the present disclosure are involved, and other structures can refer to the general design.

[0043] (3) For the sake of clarity, components or regions are exaggerated in the drawings used to describe embodiments of the present disclosure. It is understood that when an element is referred to as being “on” or “under” another element, the element may be “directly on” or “under” the other element, or intervening elements may be present.

[0044] The above description is merely a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A workpiece grasping device, characterized in that: include: A mounting seat (1), wherein along a first direction of the mounting seat (1), both ends of the mounting seat (1) are mounted with first guide plates (2); and along a second direction of the mounting seat (1), a second guide plate (3) is mounted on the mounting seat (1) in a direction away from the first guide plate (2); A driving assembly comprising a first driving component (4) mounted on the first guide plate (2), a second driving component (5) mounted on the second guide plate (3), and a third driving component (6) vertically mounted on the second driving component (5), wherein the first driving component (4), the second driving component (5) and the third driving component (6) each comprise a guide seat (15), a slider (16) and a driving motor (17), wherein the slider (16) is connected to a driving end of the driving motor (17) and slides along the guide seat (15) under the drive of the driving motor (17); The grabbing components are arranged into multiple groups, each of which is mounted on the first driving component (4) and the third driving component (6), and each of the grabbing components includes a cylinder (7) and a gripper (8), and the gripper (8) is connected to the driving end of the cylinder (7).

2. The workpiece gripping device according to claim 1, characterized in that: The gripper (8) comprises: A support plate (9), the support plate (9) is fixedly mounted on the side of the cylinder (7), and a first clamp (10) is mounted on one end of the support plate (9) along the expansion and contraction direction of the cylinder (7); A clamping arm (11) is hinged to the driving end of the cylinder (7) and is located above the first clamping head (10). A second clamping head (12) is installed on the clamping arm (11) along the direction of the first clamping head (10).

3. The workpiece gripping device according to claim 2, characterized in that: The first chuck (10) is a spherical chuck.

4. The workpiece gripping device according to claim 2 or 3, characterized in that: The second chuck (12) is a spherical chuck.

5. The workpiece gripping device according to claim 4, characterized in that: Also included is a fixing assembly, the fixing assembly comprising: A positioning pin (13), wherein two positioning pins (13) are provided, and the two positioning pins (13) are respectively installed on both sides of the third driving component (6) and are provided close to the grabbing assembly.

6. The workpiece gripping device according to claim 5, characterized in that: It also includes a position sensor (14), which is mounted on the first driving component (4).

7. The workpiece gripping device according to claim 5 or 6, characterized in that: The driving motor (17) is a servo motor.

8. The workpiece gripping device according to claim 5 or 6, characterized in that: The cylinder (7) is a telescopic cylinder.