A welding fixture

Abstract

This utility model belongs to the field of tooling technology, and in particular to a welding tooling. Addressing the problems of existing welding methods that typically use simple bracket positioning and clamping, which suffer from poor accuracy and stability, the following solution is proposed: It includes a base, on the top of which a first base plate and a second base plate are bolted together. The top of the first base plate is provided with a first positioning component, which includes a first positioning element for positioning the fixed horizontal tube and the motor mounting bracket, and a second positioning element for positioning the lead screw mounting bracket and the first support tube. This utility model adopts a modular design, with each positioning component and clamping mechanism fixed to the base plate by bolts. The structure is compact, saving space and allowing for more flexible layout of the welding tooling in the workshop, facilitating efficient production line layout. It enables precise positioning and secure clamping, thus significantly improving welding quality.

Description

Technical Field

[0001] This utility model relates to the field of tooling technology, and in particular to a welding tooling. Background Technology

[0002] In the modern automotive manufacturing industry, seats are an important component of the vehicle interior, and their quality and comfort directly affect the passenger's riding experience. As the basic support structure of the seat, the manufacturing precision and stability of the seat frame are crucial. Welding, as a key step in the manufacturing process of the seat frame, directly affects the overall performance of the seat frame.

[0003] In traditional seat frame welding processes, simple bracket positioning and clamping methods are typically used for welding. However, this method has many drawbacks. First, it is difficult to guarantee accuracy. The skill levels and operating habits of different operators vary greatly, which can easily lead to welding position deviations, thereby affecting the dimensional accuracy and assembly performance of the seat frame. Second, it has poor stability. During the welding process, due to the effects of welding heat deformation and vibration, the parts to be welded are prone to movement or deformation, resulting in unstable welding quality and even welding defects such as discontinuous welds, slag inclusions, and porosity. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies that typically employ simple bracket positioning and clamping methods for welding, which result in difficulty in ensuring accuracy and poor stability. Therefore, this invention proposes a welding fixture.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A welding fixture for positioning a seat frame during welding includes a base. A first base plate and a second base plate are bolted to the top of the base. A first positioning assembly is provided on the top of the first base plate. The first positioning assembly includes a first positioning element for positioning a fixed horizontal tube and a motor mounting bracket, and a second positioning element for positioning a lead screw mounting bracket and a first support tube.

[0007] The top of the second base plate is provided with a second positioning assembly, which includes a third positioning element and a fourth positioning element for positioning the skeleton welding assembly;

[0008] The positioning component is provided with a clamping mechanism for fixing it to the positioning component. The first base plate and the second base plate are each provided with a control switch corresponding to the clamping mechanism.

[0009] In one possible design, the first positioning element includes two first support seats that are bolted to one side of the top of the first base plate. The first support seats are provided with grooves for positioning the fixed horizontal tube and positioning pins for positioning the motor mounting bracket. The clamping mechanism includes a first clamp bolted to one side of the first support seats for fixing the fixed horizontal tube to the two first support seats. A second clamp bolted to one side of the two first support seats is used to fix the motor mounting bracket to the first support seats, and the motor mounting bracket is used to fix the middle section of the fixed horizontal tube.

[0010] In one possible design, the second positioning element includes two second support seats that are bolted to one side of the top of the first base plate. The second support seats are provided with positioning grooves that are adapted to the first support tube. One side of the second support seat is provided with a positioning pin for positioning the lead screw mounting bracket. The clamping mechanism includes a third clamp that is bolted to one side of the second support seat. A fourth clamp that is bolted between the two second support seats is provided for fixing the lead screw mounting bracket.

[0011] In one possible design, the third positioning element includes two fifth support seats fixed to the top of the second base plate by bolts. The fifth support seats are provided with positioning pins for positioning the leg support frame assembly. The clamping mechanism includes a seventh clamp fixed to one side of the fifth support seats by bolts. An eighth clamp is also fixed between the two fifth support seats by bolts.

[0012] In one possible design, the fourth positioning element includes two sliding plates movably disposed on the top of the second base plate. The top of the sliding plates is fixed with a third support seat and a fourth support seat by bolts. One side of the third support seat is provided with a positioning pin for positioning the leg support frame assembly. The top of the fourth support seat is provided with a groove adapted to the support tube seat. One side of the fourth support seat is provided with a fifth clamp for fixing the support tube seat. The top of the second base plate is fixed with three sixth clamps for fixing the plastic part fixing bracket, the first bracket steel pipe and the second support steel pipe by bolts.

[0013] In one possible design, two cylinders are bolted to the top of the second base plate, and the output end of the cylinders is connected to the sliding plate by bolts.

[0014] In this utility model, the welding fixture, through a precisely designed positioning component, including a first positioning component and a second positioning component, can achieve precise positioning of various components of the seat frame. The first positioning component and the second positioning component are used to position the fixed horizontal tube, the motor mounting bracket, the screw mounting bracket, and the first support tube, respectively, ensuring that the positions of these components are accurate during the welding process. The third positioning component and the fourth positioning component are used to position the frame welding assembly, further improving the welding accuracy and stability, reducing deviations during the welding process, and improving the overall quality of the seat frame.

[0015] In this utility model, the welding fixture is provided with a clamping mechanism on each positioning component. These clamping mechanisms are fixed to the positioning components by bolts, which can firmly fix the parts to be welded on the positioning components, ensuring their stability during the welding process. This not only improves the welding accuracy but also reduces welding defects caused by the movement of parts during the welding process.

[0016] In this utility model, the welding fixture is provided with control switches corresponding to the clamping mechanism on both the first base plate and the second base plate. Operators can conveniently control the opening and closing of the clamping mechanism through these control switches, making the operation of the welding fixture simpler and faster, reducing the labor intensity of operators, and improving production efficiency. At the same time, the setting of control switches also makes the welding fixture more intelligent and facilitates automated production.

[0017] This invention employs a modular design, with each positioning component and clamping mechanism fixed to the base plate by bolts. The compact structure saves space and allows for more flexible layout of the welding fixture in the workshop, facilitating efficient production line layout. It enables precise positioning and secure clamping, thus significantly improving welding quality, enhancing the overall strength and stability of the seat frame, and simultaneously improving production safety. Attached Figure Description

[0018] Figure 1 This is an exploded structural diagram of a welding fixture proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the first tooling clamping structure of a welding fixture proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of the first tooling clamping structure of a welding fixture proposed in this utility model;

[0021] Figure 4 This is a schematic diagram of the second tooling clamping structure of a welding fixture proposed in this utility model;

[0022] Figure 5 This is a schematic diagram of the second tooling clamping structure of a welding fixture proposed in this utility model;

[0023] Figure 6 This is a schematic diagram of the sliding plate and third support base structure of a welding fixture proposed in this utility model;

[0024] Figure 7 This is a schematic diagram of the fifth support base structure of a welding fixture proposed in this utility model.

[0025] In the diagram: 1. Base; 2. First base plate; 3. Second base plate; 4. Fixed horizontal tube; 5. Motor mounting bracket; 6. Screw mounting bracket; 7. First support tube; 8. Motor bracket assembly; 9. Plastic part fixing bracket; 10. First bracket steel tube; 11. Second support steel tube; 12. Support tube seat; 13. Screw bracket assembly; 14. Second support tube; 15. Leg support frame assembly; 16. Frame welding assembly; 17. First support seat; 18. First clamp; 19. Second clamp; 20. Second support seat; 21. Third clamp; 22. Fourth clamp; 23. Control switch; 24. Sliding plate; 25. Cylinder; 26. Third support seat; 27. Fourth support seat; 28. Fifth clamp; 29. ​​Sixth clamp; 30. Fifth support seat; 31. Seventh clamp; 32. Eighth clamp. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Example 1

[0028] In traditional seat frame welding processes, simple bracket positioning and clamping methods are typically used for welding. However, this method has many drawbacks. First, it is difficult to guarantee accuracy. The skill levels and operating habits of different operators vary greatly, which can easily lead to welding position deviations, thereby affecting the dimensional accuracy and assembly performance of the seat frame. Second, it has poor stability. During the welding process, due to the effects of welding heat deformation and vibration, the parts to be welded are prone to movement or deformation, resulting in unstable welding quality and even welding defects such as discontinuous welds, slag inclusions, and porosity. To address these issues, this solution designs a tooling.

[0029] Reference Figures 1-7A tooling includes: a base 1, a first base plate 2 and a second base plate 3 are bolted to the top of the base 1, a first positioning component is provided on the top of the first base plate 2, a second positioning component is provided on the top of the second base plate 3, a clamping mechanism is provided on the positioning component for fixing it to the positioning component, and a control switch 23 corresponding to the clamping mechanism is provided on both the first base plate 2 and the second base plate 3.

[0030] The first positioning assembly includes a first positioning element for positioning the fixed horizontal tube 4 and the motor mounting bracket 5, and a second positioning element for positioning the lead screw mounting bracket 6 and the first support tube 7.

[0031] The first positioning component includes two first support seats 17 fixed to one side of the top of the first base plate 2 by bolts. The first support seats 17 are provided with grooves for positioning the fixed horizontal tube 4 and positioning pins for positioning the motor mounting bracket 5. The clamping mechanism includes a first clamp 18 fixed to one side of the first support seats 17 by bolts for fixing the fixed horizontal tube 4 to the two first support seats 17. A second clamp 19 is fixed to one side of the two first support seats 17 by bolts for fixing the motor mounting bracket 5 to the first support seats 17, and at the same time, the motor mounting bracket 5 is used to fix the middle section of the fixed horizontal tube 4.

[0032] The second positioning component includes two second support seats 20 fixed to one side of the top of the first base plate 2 by bolts. The second support seat 20 is provided with a positioning groove that is adapted to the first support tube 7. One side of the second support seat 20 is provided with a positioning pin for positioning the lead screw mounting bracket 6. The clamping mechanism includes a third clamp 21 fixed to one side of the second support seat 20 by bolts. A fourth clamp 22 for fixing the lead screw mounting bracket 6 is fixed between the two second support seats 20 by bolts.

[0033] The second positioning assembly includes a third positioning element and a fourth positioning element for positioning the skeleton welding assembly 16.

[0034] The third positioning component includes two fifth support seats 30 fixed to the top of the second base plate 3 by bolts. The fifth support seats 30 are provided with positioning pins for positioning the leg support frame assembly 15. The clamping mechanism includes a seventh clamp 31 fixed to one side of the fifth support seat 30 by bolts. An eighth clamp 32 is also fixed between the two fifth support seats 30 by bolts.

[0035] The fourth positioning component includes two sliding plates 24 movably mounted on the top of the second base plate 3. The top of the sliding plates 24 is fixed with a third support seat 26 and a fourth support seat 27 by bolts. The third support seat 26 has a positioning pin on one side for positioning the leg support frame assembly 15. The top of the fourth support seat 27 has a groove that matches the support tube seat 12. The fourth support seat 27 has a fifth clamp 28 on one side for fixing the support tube seat 12. The top of the second base plate 3 is fixed with three sixth clamps 29 by bolts for fixing the plastic part fixing bracket 9, the first bracket steel pipe 10 and the second support steel pipe 11.

[0036] Two cylinders 25 are fixed to the top of the second base plate 3 by bolts, and the output end of the cylinders 25 is connected to the sliding plate 24 by bolts.

[0037] This application can be used in the field of tooling, or in other fields applicable to this application.

[0038] Example 2

[0039] refer to Figures 1-7 An improvement based on Embodiment 1: A welding fixture is applied to the tooling field. The fixture consists of a cylinder and a clamping plate. The clamping plate is rotatably mounted on the cylinder via a pin, and the output end of the cylinder is rotatably connected to the clamping plate via a pin. The control switch 23 is connected to the corresponding cylinder and can control the extension and retraction of the cylinder.

[0040] In use, firstly, place the fixed horizontal tube 4 and the motor mounting bracket 5 on the two first support seats 17 in sequence, and position them through the grooves and positioning pins on the first support seats 17. Then, activate the first clamp 18 and the second clamp 19 to fix the fixed horizontal tube 4 and the motor mounting bracket 5 on the two first support seats 17. Next, put the screw mounting bracket 6 on the first support tube 7 and place it on the two second support seats 20. Activate the third clamp 21 and the second support seat 20 to fix it on the two second support seats 20 and then weld it.

[0041] Then, the motor bracket assembly 8, plastic part fixing bracket 9, first bracket steel pipe 10, second support steel pipe 11, support pipe seat 12, screw bracket assembly 13, second support pipe 14, and leg support frame assembly 15 are assembled in sequence. The assembled frame welding assembly 16 is placed on the third support seat 26, fourth support seat 27, and fifth support seat 30 on the second base plate 3. The cylinder 25 is activated to push the sliding plate 24 to move the third support seat 26 to position and clamp the frame welding assembly 16. The fifth clamp 28, sixth clamp 29, seventh clamp 31, and eighth clamp 32 are activated to fix the frame welding assembly 16, and then welding is performed.

[0042] However, as is well known to those skilled in the art, the working principle and wiring method of cylinder 25 are commonplace and are all conventional methods or common knowledge, so they will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A welding fixture for use in seat frame welding for positioning the frame, characterized by, Includes a base (1), the top of which is bolted to a first base plate (2) and a second base plate (3). The top of the first base plate (2) is provided with a first positioning component, which includes a first positioning element for positioning the fixed horizontal tube (4) and the motor mounting bracket (5) and a second positioning element for positioning the lead screw mounting bracket (6) and the first support tube (7). The top of the second base plate (3) is provided with a second positioning assembly, which includes a third positioning element and a fourth positioning element for positioning the skeleton welding assembly (16); The positioning member is provided with a clamping mechanism for fixing it to the positioning member. The first base plate (2) and the second base plate (3) are both provided with control switches (23) corresponding to the clamping mechanism.

2. The welding fixture according to claim 1, characterized in that, The first positioning component includes two first support seats (17) fixed to one side of the top of the first base plate (2) by bolts. The first support seats (17) are provided with grooves for positioning the fixed horizontal tube (4) and positioning pins for positioning the motor mounting bracket (5). The clamping mechanism includes a first clamp (18) fixed to one side of the first support seat (17) by bolts for fixing the fixed horizontal tube (4) to the two first support seats (17). A second clamp (19) is fixed to one side of the two first support seats (17) by bolts for fixing the motor mounting bracket (5) to the first support seat (17) and simultaneously using the motor mounting bracket (5) to fix the middle section of the fixed horizontal tube (4).

3. The welding fixture according to claim 1, characterized in that, The second positioning component includes two second support seats (20) fixed to one side of the top of the first base plate (2) by bolts. The second support seat (20) is provided with a positioning groove that is compatible with the first support tube (7). One side of the second support seat (20) is provided with a positioning pin for positioning the screw mounting bracket (6). The clamping mechanism includes a third clamp (21) fixed to one side of the second support seat (20) by bolts. A fourth clamp (22) for fixing the screw mounting bracket (6) is fixed between the two second support seats (20) by bolts.

4. The welding fixture according to claim 1, characterized in that, The third positioning component includes two fifth support seats (30) fixed to the top of the second base plate (3) by bolts. The fifth support seats (30) are provided with positioning pins for positioning the leg support frame assembly (15). The clamping mechanism includes a seventh clamp (31) fixed to one side of the fifth support seat (30) by bolts. An eighth clamp (32) is also fixed between the two fifth support seats (30) by bolts.

5. The welding fixture according to claim 1, characterized in that, The fourth positioning component includes two sliding plates (24) movably mounted on the top of the second base plate (3). The top of the sliding plates (24) is fixed with a third support seat (26) and a fourth support seat (27) by bolts. The third support seat (26) has a positioning pin on one side for positioning the leg support frame assembly (15). The top of the fourth support seat (27) has a groove that matches the support tube seat (12). The fourth support seat (27) has a fifth clamp (28) on one side for fixing the support tube seat (12). The top of the second base plate (3) is fixed with three sixth clamps (29) for fixing the plastic part fixing bracket (9), the first bracket steel pipe (10), and the second support steel pipe (11).

6. The welding fixture according to claim 5, characterized in that, The top of the second base plate (3) is fixed with two cylinders (25) by bolts, and the output end of the cylinders (25) is connected to the sliding plate (24) by bolts.

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