Universal clamp tool for welding robot
By combining the clamping airbag driven by an electric hydraulic cylinder and an air pump with a telescopic protective cover, the problems of complex operation and workpiece damage of existing welding robot fixtures are solved, realizing automatic adjustment and protection, and improving the adaptability and stability of the fixture.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU NUOYU MECHANICAL & ELECTRICAL EQUIP CO LTD
- Filing Date
- 2025-04-09
- Publication Date
- 2026-04-24
AI Technical Summary
Existing welding robot fixtures are complex to operate during disassembly, time-consuming, and have difficulty in ensuring stability. Furthermore, they need to be frequently replaced when the model of the clamping parts changes, which can easily damage the workpiece.
The clamping airbag is driven by an electric hydraulic cylinder and an air pump for inflation and deflation. It is combined with a telescopic protective cover and a positioning plate to achieve automatic adjustment and protection, avoiding damage to the clamp from welding sparks and waste.
It improves the adaptability and stability of the fixture, reduces the frequency of clamping component replacement, protects the workpiece from damage, and simplifies the operation process.
Smart Images

Figure CN224157956U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of general-purpose fixture technology, and more specifically, to a general-purpose fixture for welding robots. Background Technology
[0002] Welding robots are industrial robots that perform welding (including cutting and spraying). According to the International Organization for Standardization (ISO) definition of industrial robots as standard welding robots, an industrial robot is a multi-purpose, reprogrammable, automatically controlled manipulator with three or more programmable axes used in industrial automation.
[0003] When using welding robots, clamps are needed to hold the workpiece in place. Currently, commonly used clamps use bolts to drive the clamping plate to hold the workpiece. After welding is completed, the bolts on the left and right sides need to be rotated to separate the clamping plate from the workpiece. The disassembly process described above requires loosening the bolts multiple times, which results in complex processing operations, long processing time, and difficulty in ensuring processing stability. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, the embodiments of this utility model provide a general-purpose fixture for welding robots to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a universal fixture for welding robots, comprising a placement frame, wherein a universal fixture auxiliary device is provided at the front end of the placement frame, the universal fixture auxiliary device comprising: an adjustment component and a protective component, wherein the lower end of the protective component is disposed at the upper end of the adjustment component, and the adjustment component is disposed on the side of the front end of the placement frame.
[0006] In a preferred embodiment, the adjustment assembly includes: an electric hydraulic cylinder, a first inflation / deflation pump, a second inflation / deflation pump, an outer protective frame, a clamping airbag, a lower positioning protective block, a sliding adjustment block, and a sliding adjustment groove, wherein the sliding adjustment groove is formed on the upper end of the lower positioning protective block.
[0007] In a preferred embodiment, the protective component includes: a telescopic protective cover, a first positioning plate, a second positioning plate, a positioning moving block, and a sliding groove. Multiple sets of sliding grooves are provided, and the multiple sets of sliding grooves are respectively provided on the upper end of the lower positioning protective block.
[0008] In a preferred embodiment, the lower end of the sliding adjustment block is installed inside the upper end of the sliding adjustment groove, and the upper end of the sliding adjustment block is installed at the lower end of the outer protective frame. Both the sliding adjustment block and the sliding adjustment groove are T-shaped.
[0009] In a preferred embodiment, the output end of the electric hydraulic cylinder is installed at the rear end of the outer protective frame, the lower end of the electric hydraulic cylinder is installed at the upper end of the placement frame, the front ends of the first and second inflation / deflation pumps are installed at the rear end of the outer protective frame, the front ends of the first and second inflation / deflation pumps are provided with inflation and deflation ports, and the inflation and deflation ports are respectively installed at the rear end of the clamping airbag, and the outer wall of the rear end of the clamping airbag is installed at the front end of the outer protective frame.
[0010] In a preferred embodiment, the upper end of the positioning moving block is installed at the lower end of the telescopic protective cover, the front end of the telescopic protective cover is installed at the rear end of the second positioning plate, and the rear end of the telescopic protective cover is installed at the front end of the first positioning plate.
[0011] In a preferred embodiment, the upper end of the first positioning plate is installed at the lower end of the outer protective frame, and the lower end of the second positioning plate is installed at the upper end of the lower positioning protective block. The adjustment component, the placement frame, and the protective component are all provided in two sets.
[0012] The technical effects and advantages of this utility model are as follows:
[0013] A universal fixture for welding robots, compared with existing technologies, effectively avoids the problem of welding sparks and welding waste damaging the upper end of the lower positioning protection block during welding. This device uses adjustable components to cooperate in clamping and welding auxiliary protection, greatly enhancing the adaptability and stability of the entire device. It avoids and solves the problem of frequent replacement of clamping parts with different models and sizes. The device uses clamping airbags to clamp the workpiece, enhancing the clamping protection performance and effectively solving the problem of workpiece damage caused by clamping fixtures. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0015] Figure 2 This is a schematic diagram of the general auxiliary device for clamps of this utility model.
[0016] Figure 3 This is a schematic diagram of the adjustment component structure of this utility model.
[0017] Figure 4 This is a schematic diagram of the protective component structure of this utility model.
[0018] The attached figures are labeled as follows: 1. Placement frame; 2. General auxiliary device for clamps; 21. Adjustment component; 211. Electric hydraulic cylinder; 212. First inflation / deflation air pump; 213. Second inflation / deflation air pump; 214. Outer protective frame; 215. Clamping airbag; 216. Sliding adjustment block; 217. Lower positioning protection block; 218. Sliding adjustment groove; 22. Protective component; 221. Positioning moving block; 222. First positioning plate; 223. Telescopic protective cover; 224. Second positioning plate; 225. Slide groove. Detailed Implementation
[0019] 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.
[0020] As attached Figure 1-4 As shown, this utility model provides a universal fixture for welding robots, including a placement frame 1. A universal fixture auxiliary device 2 is provided at the front end of the placement frame 1. The universal fixture auxiliary device 2 includes an adjustment component 21 and a protective component 22. The lower end of the protective component 22 is provided at the upper end of the adjustment component 21, and the adjustment component 21 is provided on the front side of the placement frame 1.
[0021] Adjustment assembly 21 includes: an electric hydraulic cylinder 211, a first inflation / deflation air pump 212, a second inflation / deflation air pump 213, an outer protective frame 214, a clamping airbag 215, a lower positioning protection block 217, a sliding adjustment block 216, and a sliding adjustment groove 218. The sliding adjustment groove 218 is located on the upper end of the lower positioning protection block 217. The lower end of the sliding adjustment block 216 is installed inside the upper end of the sliding adjustment groove 218. The upper end of the sliding adjustment block 216 is installed on the lower end of the outer protective frame 214. The sliding adjustment block 216 and the sliding adjustment groove 218 are connected together. All grooves 218 are T-shaped. The output end of the electric hydraulic cylinder 211 is installed at the rear end of the outer protective frame 214. The lower end of the electric hydraulic cylinder 211 is installed at the upper end of the placement frame 1. The front ends of the first inflation / deflation pump 212 and the second inflation / deflation pump 213 are installed at the rear end of the outer protective frame 214. The front ends of the first inflation / deflation pump 212 and the second inflation / deflation pump 213 are provided with inflation and deflation ports, and the inflation and deflation ports are respectively installed at the rear end of the clamping airbag 215. The outer wall of the rear end of the clamping airbag 215 is installed at the front end of the outer protective frame 214.
[0022] The protective component 22 includes: a telescopic protective cover 223, a first positioning plate 222, a second positioning plate 224, a positioning moving block 221, and a slide 225. Multiple sets of slide 225 are provided, and the multiple sets of slide 225 are respectively provided on the upper end of the lower positioning protective block 217. The upper end of the positioning moving block 221 is installed on the lower end of the telescopic protective cover 223. The front end of the telescopic protective cover 223 is installed on the rear end of the second positioning plate 224. The rear end of the telescopic protective cover 223 is installed on the front end of the first positioning plate 222. The upper end of the first positioning plate 222 is installed on the lower end of the outer protective frame 214. The lower end of the second positioning plate 224 is installed on the upper end of the lower positioning protective block 217. The adjusting component 21, the placement frame 1, and the protective component 22 are all provided with two sets.
[0023] The specific implementation method is as follows: When using this utility model, the first inflation / deflation pump 212 and the second inflation / deflation pump 213 need to be started first. When both sets of first inflation / deflation pumps 212 and second inflation / deflation pumps 213 are started simultaneously, the two sets of clamping airbags 215 can be inflated. After the clamping airbags 215 are inflated, they can clamp the materials that need to be clamped and welded. Before clamping, the clamping airbags 215 can be clamped by starting the electric hydraulic cylinder 211 set at its rear end. After the electric hydraulic cylinder 211 is started, it can drive the distance between the two sets of clamping airbags 215 set at the front end to be adjusted. When the two sets of clamping airbags 215 are adjusted in position, the outer protective frame 214 installed at the rear end can move back and forth. The back and forth movement of the outer protective frame 214 drives the sliding adjustment block 216 set at the lower end to move back and forth. The forward and backward movement of component 216 causes the telescopic protective cover 223 at the lower end of the outer protective frame 214 to extend and retract. The telescopic protective cover 223, along with the upper outer protective frame 214, extends and retracts, protecting the upper end of the lower positioning protective block 217. This effectively prevents damage to the upper end of the lower positioning protective block 217 from welding sparks and welding waste during the welding process. The device, through the coordinated adjustment components 21, provides auxiliary protection during clamping and welding, greatly enhancing the adaptability and stability of the entire device. It avoids the problem of frequently replacing clamping components of different sizes. The device uses a clamping airbag 215 to clamp the workpiece, enhancing clamping protection performance and effectively solving the problem of damage caused by clamping fixtures.
[0024] The working principle of this utility model is as follows: When using this utility model, the first inflation / deflation pump 212 and the second inflation / deflation pump 213 need to be started first. When both sets of first inflation / deflation pumps 212 and second inflation / deflation pumps 213 are started simultaneously, the two sets of clamping airbags 215 can be inflated. After the clamping airbags 215 are inflated, they can be used to clamp the materials that need to be clamped and welded. Before clamping, the clamping airbags 215 can be clamped by starting the electric hydraulic cylinder 211 set at its rear end. After the electric hydraulic cylinder 211 is started, it can drive the distance between the two sets of clamping airbags 215 set at the front end to be adjusted. When the two sets of clamping airbags 215 are in... When adjusting the position, the outer protective frame 214 installed at the rear end can move back and forth. The back and forth movement of the outer protective frame 214 drives the sliding adjustment block 216 set at the lower end to move back and forth. When the sliding adjustment block 216 moves forward and backward, it drives the telescopic protective cover 223 set at the lower end of the outer protective frame 214 to move and extend. The telescopic protective cover 223 moves and extends along with the outer protective frame 214 set at the upper end, which can protect the upper end of the lower positioning protective block 217, effectively avoiding the problem of welding sparks and welding waste damaging the upper end of the lower positioning protective block 217 during the welding process.
[0025] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.
[0026] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0027] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A universal fixture for welding robots, comprising a placement rack (1), characterized in that: The front end of the placement rack (1) is provided with a universal clamping auxiliary device (2); The universal auxiliary device (2) for the clamp includes an adjustment component (21) and a protective component (22). The lower end of the protective component (22) is disposed on the upper end of the adjustment component (21), and the adjustment component (21) is disposed on the front side of the placement frame (1).
2. The universal fixture for welding robots according to claim 1, characterized in that: The adjustment assembly (21) includes: an electric hydraulic cylinder (211), a first inflation / deflation air pump (212), a second inflation / deflation air pump (213), an outer protective frame (214), a clamping airbag (215), a lower positioning protection block (217), a sliding adjustment block (216), and a sliding adjustment groove (218), wherein the sliding adjustment groove (218) is located on the upper end of the lower positioning protection block (217).
3. The universal fixture for welding robots according to claim 2, characterized in that: The protective component (22) includes: a telescopic protective cover (223), a first positioning plate (222), a second positioning plate (224), a positioning moving block (221), and a slide (225). The slide (225) has multiple sets, and the multiple sets of slides (225) are respectively opened on the upper end of the lower positioning protective block (217).
4. The universal fixture for welding robots according to claim 2, characterized in that: The lower end of the sliding adjustment block (216) is installed inside the upper end of the sliding adjustment groove (218), and the upper end of the sliding adjustment block (216) is installed at the lower end of the outer protective frame (214). Both the sliding adjustment block (216) and the sliding adjustment groove (218) are T-shaped.
5. The universal fixture for welding robots according to claim 2, characterized in that: The output end of the electric hydraulic cylinder (211) is installed at the rear end of the outer protective frame (214), and the lower end of the electric hydraulic cylinder (211) is installed at the upper end of the placement frame (1). The front ends of the first inflation / deflation pump (212) and the second inflation / deflation pump (213) are installed at the rear end of the outer protective frame (214). The front ends of the first inflation / deflation pump (212) and the second inflation / deflation pump (213) are provided with inflation and deflation ports, and the inflation and deflation ports are respectively installed at the rear end of the clamping airbag (215). The outer wall of the rear end of the clamping airbag (215) is installed at the front end of the outer protective frame (214).
6. The universal fixture for welding robots according to claim 3, characterized in that: The upper end of the positioning moving block (221) is installed at the lower end of the telescopic protective cover (223), the front end of the telescopic protective cover (223) is installed at the rear end of the second positioning plate (224), and the rear end of the telescopic protective cover (223) is installed at the front end of the first positioning plate (222).
7. The universal fixture for welding robots according to claim 3, characterized in that: The upper end of the first positioning plate (222) is installed on the lower end of the outer protective frame (214), and the lower end of the second positioning plate (224) is installed on the upper end of the lower positioning protective block (217). The adjustment component (21), the placement frame (1) and the protective component (22) are all provided in two sets.