A positioning tool for a robot welding part

By designing a positioning fixture suitable for robotic welding, and using a telescopic cylinder and motor group to drive the positioning component adjustment, combined with an air pump group to spray airflow, the problems of inconvenient adjustment and low heat dissipation efficiency of existing positioning fixtures are solved, and efficient clamping and air cooling of multi-shaped welded parts are achieved.

CN224575007UActive Publication Date: 2026-07-31CHANGSHA WANGDA PRECISION MACHINERY PROCESSING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGSHA WANGDA PRECISION MACHINERY PROCESSING CO LTD
Filing Date
2025-09-02
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Existing positioning fixtures are inconvenient to adjust during the welding process, making it difficult to adapt to various shapes of welded parts. Furthermore, they have low heat dissipation efficiency after welding, affecting the handling and cooling of welded parts.

Method used

A positioning fixture comprising a worktable, a positioning component, a drive component, an adjustment component, and an air supply component was designed. The positioning component is flexibly adjusted and air jet cooling is achieved through a telescopic cylinder, a motor unit, and an air pump unit, which can adapt to the clamping and air cooling of welded parts of different shapes.

Benefits of technology

It enables flexible adjustment and efficient clamping of the positioning fixture, preventing the welded parts from moving or falling off. It also improves the positioning strength and heat dissipation efficiency of the welded parts through airflow cooling, making it easier to pick up, put down and process them.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224575007U_ABST
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Abstract

This utility model discloses a positioning fixture for robot welding parts, including a worktable. Two sets of positioning components are slidably mounted on the upper side of the worktable. A driving component for moving the positioning components is provided on the side of the worktable. Each positioning component includes a guide frame, within which two sets of guide plates are slidably disposed. A positioning post is fixed to the upper side of each guide plate. An adjustment component for adjusting the position of the guide plates is provided on the side of the guide frame. This positioning fixture for robot welding parts is flexible in adjustment and easy to use. It is suitable for clamping and fixing welding parts of various shapes, facilitating welding processing. It provides high positioning strength during the welding process, preventing the welding parts from moving or falling off under force. Simultaneously, this positioning mechanism has a cooling effect; after welding, the welding parts are cooled by controlling gas flow, facilitating the handling and subsequent processing of the welded parts.
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Description

Technical Field

[0001] This utility model relates to the field of positioning tooling technology, specifically a positioning tooling for robot welding parts. Background Technology

[0002] When welding workpieces using a welding robot, positioning fixtures are typically used to position the workpieces to prevent them from moving under stress during the welding process. Common positioning fixtures include clamps, blocks, and pressure plates, which are inconvenient to adjust during use. CN213614979U discloses a positioning fixture for robot welding, including a base mechanism with an adjustment mechanism fixedly connected to one end of its upper surface. This positioning fixture addresses the problems of insufficient positioning stability and inconvenient material handling. While collecting welded parts by dropping them into a storage device is useful for picking up and storing welded parts, the accumulated heat is concentrated, resulting in lower heat dissipation efficiency and hindering post-weld cooling. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a positioning fixture for robot welding parts. It is flexible in adjustment and easy to use. It is suitable for clamping and fixing welding parts of various shapes, which facilitates the welding process. The welding process has high positioning strength to prevent the welding parts from moving or falling off under force. At the same time, this positioning work has a cooling effect. After the welding parts are prepared, the welding parts are cooled by controlling the gas flow, which facilitates the handling or subsequent processing of the welding parts. It can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a positioning fixture for robot welding parts, including a worktable, two sets of positioning components are provided on the upper side of the worktable, and the positioning components are slidably mounted on the worktable. A driving component for moving the positioning components is provided on the side of the worktable. The positioning components include a guide frame, two sets of guide plates are slidably arranged in the guide frame, and a positioning post is fixed on the upper side of the guide plate. An adjustment component for adjusting the position of the guide plate is provided on the side of the guide frame. The positioning post is hollow inside, and an air jet port communicating with its inner cavity is opened on the upper part of the side of the positioning post. An air supply component communicating with the inner cavity of the positioning post is provided on the outside of the worktable.

[0005] As a preferred embodiment of this utility model, the drive assembly includes a telescopic cylinder mounted on the upper side of the workbench, and the telescopic end of the telescopic cylinder is connected and fixed to the middle of the side of the guide frame.

[0006] As a preferred technical solution of this utility model, a sliding groove is provided on the side of the workbench, and a positioning plate is fixed on the lower side of the guide frame. The positioning plate is slidably disposed in the sliding groove, and the positioning plate is adapted to the sliding groove.

[0007] As a preferred embodiment of this utility model, the adjustment assembly includes an adjustment rod rotatably mounted in a guide frame. The two ends of the adjustment rod are provided with threads in opposite directions. Two sets of guide plates are respectively located at the two ends of the adjustment rod and threadedly connected to the adjustment rod. A motor assembly for driving the adjustment rod to rotate is installed on the side of the guide frame.

[0008] As a preferred technical solution of this utility model, the air supply component includes an air pump group, an air guide pipe is provided at the air outlet end of the air pump group, and several diversion pipes communicating with its inner cavity are connected to the end of the air guide pipe. The end of the diversion pipe away from the air guide pipe is fixed to the outside of the positioning column and communicates with its inner cavity.

[0009] As a preferred embodiment of this utility model, a control valve is installed on the diversion pipe.

[0010] As a preferred embodiment of this utility model, a limiting plate is fixed to the lower side of the positioning column, and the air jet is located above the limiting plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. The positioning fixture for robot welding parts in this utility model example controls the telescopic cylinder to work according to the volume or shape of the welding part. The telescopic cylinder drives the guide frame to move and adjusts the distance between the two sets of positioning components. When the guide frame moves, the positioning plate moves in the slide groove, which plays a positioning and guiding role in the movement of the guide frame, improves the stability of the guide frame position adjustment, and facilitates the setting and use of this positioning fixture.

[0012] 2. The positioning fixture for robot welding parts in this utility model example is driven by a motor to rotate an adjusting rod, which in turn drives a guide plate to move within a guide frame. The guide plate moves the positioning posts, facilitating the adjustment of the distance between the two sets of positioning posts. It can be flexibly adjusted according to the shape or volume of the welding parts and is used for clamping and positioning various welding parts. When the guide plate moves and adjusts, the guide frame plays a limiting and guiding role.

[0013] 3. The positioning fixture for robot welding in this utility model example delivers airflow into the air pipe via an air pump assembly. The airflow is then delivered to the distribution pipe and enters the positioning column, facilitating the airflow to be ejected through the jet nozzle on the side of the positioning column, thus aiding in the cooling of the welded part. The control valve is used to adjust the gas flow rate in a single distribution pipe and adjust the jet volume of the positioning column at a position close to the welded part according to the welding position of the welded part, thereby facilitating the cooling of the welded part. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2This is a front view structural diagram of the present utility model; Figure 3 This is a schematic diagram of the positioning component in this utility model.

[0015] In the diagram: 1. Workbench, 2. Guide frame, 3. Guide plate, 4. Positioning column, 5. Limiting plate, 6. Adjusting rod, 7. Motor unit, 8. Slide groove, 9. Positioning plate, 10. Telescopic cylinder, 11. Air nozzle, 12. Air pump unit, 13. Air guide pipe, 14. Diverter pipe, 15. Control valve. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0017] Please see Figure 1-3 This utility model provides a technical solution: a positioning fixture for robot welding parts, including a worktable 1. Two sets of positioning components are arranged on the upper side of the worktable 1. The two sets of positioning components are located on both sides of the welding part for clamping and fixing the welding part. The positioning components are slidably installed on the worktable 1. By sliding the positioning components, their positions can be adjusted to facilitate clamping and fixing welding parts of different volumes or shapes. A driving component is arranged on the side of the worktable 1 to drive the positioning components to move. The driving component is used for adjusting and positioning the positioning components.

[0018] The positioning assembly includes a guide frame 2, in which two sets of guide plates 3 are slidably arranged, and positioning posts 4 are fixed on the upper side of the guide plates 3. An adjustment assembly for adjusting the position of the guide plates 3 is provided on the side of the guide frame 2. The adjustment assembly is used to adjust the distance between the two sets of positioning posts 4 in the guide frame 2. When using this positioning fixture, the distance between the two sets of positioning posts 4 on the same side is adjusted first, and then the distance between the two sets of positioning assemblies is adjusted for clamping and positioning of the welded parts.

[0019] The drive assembly includes a telescopic cylinder 10 mounted on the upper side of the workbench 1. The telescopic end of the telescopic cylinder 10 is connected and fixed to the middle of the side of the guide frame 2. The telescopic cylinder 10 includes, but is not limited to, a hydraulic telescopic cylinder or a servo electric cylinder. During use, the telescopic cylinder 10 is controlled to work according to the volume or shape of the welded part. The telescopic cylinder 10 drives the guide frame 2 to move and adjust the distance between the two sets of positioning components. Preferably, a slide groove 8 is provided on the side of the workbench 1, and a positioning plate 9 is fixed on the lower side of the guide frame 2. The positioning plate 9 is slidably disposed in the slide groove 8 and is adapted to the slide groove 8. When the guide frame 2 moves, the positioning plate 9 moves in the slide groove 8, which plays a positioning and guiding role in the movement of the guide frame 2, improves the stability of the guide frame 2 during position adjustment, and facilitates the setting and use of this positioning fixture.

[0020] The adjustment assembly includes an adjustment rod 6 rotatably mounted inside the guide frame 2. The two ends of the adjustment rod 6 are threaded in opposite directions. Two sets of guide plates 3 are located at the two ends of the adjustment rod 6 and are threadedly connected to the adjustment rod 6. A motor set 7 is installed on the side of the guide frame 2 to drive the adjustment rod 6 to rotate. When adjusting the distance between the two sets of adjustment rods 6, the motor set 7 is controlled to work, and the motor set 7 drives the adjustment rod 6 to rotate, causing the adjustment rod 6 to drive the guide plate 3 to move within the guide frame 2. The guide plate 3 drives the positioning post 4 to move, which facilitates the adjustment of the distance between the two sets of positioning posts 4. It can be flexibly adjusted according to the shape or volume of the welded parts and is used for clamping and positioning various welded parts. When the position of the guide plate 3 is adjusted, the guide frame 2 plays a limiting and guiding role.

[0021] The positioning column 4 is hollow inside, and an air jet 11 communicating with its inner cavity is opened on the upper side of the positioning column 4. An air supply component communicating with the inner cavity of the positioning column 4 is provided on the outside of the worktable 1. The air supply component delivers airflow into the positioning column 4. After the airflow is ejected through the air jet 11, it acts on the welded part to cool it down, which facilitates the handling or subsequent processing of the welded part.

[0022] The air supply assembly includes an air pump unit 12. An air guide pipe 13 is provided at the air outlet end of the air pump unit 12. Several diversion pipes 14 communicating with its inner cavity are connected to the end of the air guide pipe 13. The end of the diversion pipe 14 away from the air guide pipe 13 is fixed to the outside of the positioning column 4 and communicates with its inner cavity. The air pump unit 12 is controlled to work and air is delivered into the air guide pipe 13 through the air pump unit 12. The air is delivered into the diversion pipe 14 through the air guide pipe 13 and enters the positioning column 4, so that the air is ejected through the jet nozzle 11 on the side of the positioning column 4 to assist in the cooling treatment of the welded parts.

[0023] A control valve 15 is installed on the diversion pipe 14. The control valve 15 is used to adjust the gas flow rate in a single diversion pipe 14 and adjust the gas jet volume of the positioning column 4 at a position close to the welding position of the welded part, so as to facilitate the cooling treatment of the welded part.

[0024] A limiting plate 5 is fixed to the lower side of the positioning post 4, and the air jet 11 is located above the limiting plate 5. The limiting plate 5 is used to position the welded part held by the positioning post 4 to prevent the welded part from sliding down under force.

[0025] The motor assembly 7, telescopic cylinder 10, and air pump assembly 12 used in this utility model are all commonly used electronic components in the prior art. Their working methods and circuit structures are all known technologies. The operation of electronic components such as motor assembly 7, telescopic cylinder 10, and air pump assembly 12 is controlled by setting a switch group or PLC controller outside the workbench 1. This method is a common technical means used by technicians and will not be described in detail here.

[0026] This robot uses a positioning fixture for welding parts, which is flexible in adjustment and easy to use. It is suitable for clamping and fixing welding parts of various shapes, making it easy to weld them. The welding process has high positioning strength to prevent the welding parts from moving or falling off under force. At the same time, this positioning function has a cooling effect. After the welding parts are prepared, the welding parts are cooled by controlling the gas flow, which facilitates the handling or subsequent processing of the welding parts.

[0027] The parts not disclosed in this utility model are all prior art, and their specific structures, materials, and working principles will not be described in detail. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning tool for robotized welding, comprising a worktable (1), characterized in that: Two sets of positioning components are provided on the upper side of the workbench (1), and the positioning components are slidably installed on the workbench (1). A driving component for driving the positioning components to move is provided on the side of the workbench (1). The positioning component includes a guide frame (2). Two sets of guide plates (3) are slidably provided in the guide frame (2), and a positioning column (4) is fixed on the upper side of the guide plate (3). An adjustment component for adjusting the position of the guide plate (3) is provided on the side of the guide frame (2). The positioning column (4) is hollow inside, and an air jet (11) communicating with its inner cavity is opened on the upper part of the side of the positioning column (4). An air supply component communicating with the inner cavity of the positioning column (4) is provided on the outer side of the workbench (1).

2. The robotic weldment positioning fixture of claim 1, wherein: The drive assembly includes a telescopic cylinder (10) mounted on the upper side of the workbench (1), and the telescopic end of the telescopic cylinder (10) is connected and fixed to the middle of the side of the guide frame (2).

3. The robotic weldment positioning fixture of claim 1, wherein: The workbench (1) has a slide groove (8) on its side, and a positioning plate (9) is fixed on the lower side of the guide frame (2). The positioning plate (9) is slidably disposed in the slide groove (8), and the positioning plate (9) is adapted to the slide groove (8).

4. The robotic weldment positioning fixture of claim 1, wherein: The adjustment assembly includes an adjustment rod (6) rotatably installed in the guide frame (2). The two ends of the adjustment rod (6) are provided with threads in opposite directions. Two sets of guide plates (3) are located at the two ends of the adjustment rod (6) and are threadedly connected to the adjustment rod (6). A motor set (7) for driving the adjustment rod (6) to rotate is installed on the side of the guide frame (2).

5. The robotic weldment positioning fixture of claim 1, wherein: The air supply assembly includes an air pump group (12), and an air guide pipe (13) is provided at the air outlet end of the air pump group (12). Several diversion pipes (14) connected to the end of the air guide pipe (13) are connected to its inner cavity. The end of the diversion pipe (14) away from the air guide pipe (13) is fixed to the outside of the positioning column (4) and connected to its inner cavity.

6. The robotic weldment positioning fixture of claim 5, wherein: A control valve (15) is installed on the shunt pipe (14).

7. The robotic weldment positioning fixture of claim 1, wherein: The positioning post (4) has a limiting plate (5) fixed to its lower side, and the jet nozzle (11) is located above the limiting plate (5).