Welding tool

Abstract

The utility model relates to a welding tool which is applied to the field of sheet metal part machining and comprises a bottom frame, a plurality of main supporting seats are arranged on the bottom frame, and a frame body is erected on the main supporting seats. The bottom frame is provided with a first fixing unit used for fixing the first connecting block, a second fixing unit used for fixing the second connecting block, a third fixing unit used for fixing the round pipe and a fourth fixing unit used for fixing the hinge. The welding device has the technical effects that the positions of all the parts to be welded are fixed, so that the parts are not prone to shaking in the welding process while an operator conducts welding operation conveniently, and the welding seam quality and the production efficiency are improved.

Description

Technical Field

[0001] This application relates to the field of sheet metal processing technology, and in particular to a welding fixture. Background Technology

[0002] The gantry frame is an important component of an excavator. It is fitted with glass and a lock cylinder and then mounted on the cab. It is usually made of multiple sheet metal parts welded together.

[0003] Reference Figure 1 The door frame includes a frame body 1, a hinge 2, and a shaped tubular component. The hinge 2 has a main positioning hole 3. The shaped tubular component includes a first connecting block 4 and a second connecting block 5, which need to be welded to the inner edge of the frame body 1. A round tube 6 also needs to be welded between the first connecting block 4 and the second connecting block 5. The first connecting block 4 has a first positioning hole 7, and the second connecting block 5 has a second positioning hole 8. In related technologies, operators need to manually weld the hinge 2 to the outer edge of the frame body 1 and the shaped tubular component to the inner edge of the frame body 1, so that the finished door frame becomes a single unit after welding.

[0004] During the welding process, it is difficult for operators to simultaneously fix and weld the frame, hinges, first connecting block, second connecting block, and round tube into a whole. This makes it difficult to accurately position the relative positions of the frame, hinges, first connecting block, second connecting block, and round tube, and the weld position is prone to deviation, resulting in inconsistent weld quality. This process is time-consuming and labor-intensive, leading to low door frame production efficiency. Summary of the Invention

[0005] To address the challenge of simultaneously fixing and welding the frame, hinges, first connecting block, second connecting block, and round tube into a single unit during the welding process, which leads to inaccurate positioning of their relative positions, weld deviations, inconsistent weld quality, and low production efficiency for door frames due to time and labor consumption, this application provides a welding fixture with the following technical solution: It includes a base frame with several main support seats. The frame is mounted on these main support seats. The base frame is equipped with a first fixing unit for fixing the first connecting block, a second fixing unit for fixing the second connecting block, a third fixing unit for fixing the round tube, and a fourth fixing unit for fixing the hinges.

[0006] In one specific implementation, the first fixing unit includes a first positioning seat disposed on the bottom frame, the first positioning seat having a first positioning post that matches the first positioning hole, the first connecting block being mounted on the first positioning seat and the first positioning post being inserted into the first positioning hole.

[0007] In one specific implementation, the second fixing unit includes a second positioning seat disposed on the bottom frame, the second positioning seat having a second positioning post that matches the second positioning hole, the second connecting block being mounted on the second positioning seat and the second positioning post being inserted into the second positioning hole.

[0008] In one specific implementation, the third fixing unit includes a third positioning seat disposed on the bottom frame. The third positioning seat has a limiting groove matching the round tube on its surface opposite to the bottom frame, and the round tube is mounted in the limiting groove.

[0009] In one specific implementation, a reinforcing rib is provided between the third positioning seat and the bottom frame.

[0010] In one specific implementation, a support frame is provided on the bottom frame, and a limiting block is rotatably connected to the support frame. The limiting block is mounted on the support frame, and one end of the round tube facing the limiting block contacts the limiting block.

[0011] In one specific implementation, the fourth fixing unit includes a fourth positioning seat disposed on the bottom frame. The fourth positioning seat has a placement groove on its surface opposite to the bottom frame that matches the hinge. A limiting frame is hinged to the fourth positioning seat. The hinge is mounted in the placement groove and located between the limiting frame and the fourth positioning seat. A limiting hole is provided on the limiting frame. A positioning pin that matches the limiting hole is provided on the limiting frame. The positioning pin passes through the main positioning hole and is inserted into the inner edge of the limiting hole.

[0012] In one specific implementation, the bottom frame is provided with a first quick-release clip, and the limiting frame abuts against the clamping end of the first quick-release clip and the bottom of the placement slot.

[0013] In one specific implementation scheme, the bottom frame is provided with a plurality of second quick-push clamps, and the frame body is pressed against the clamping ends of the plurality of second quick-push clamps and the main support base.

[0014] In one specific implementation, the bottom frame is provided with a connecting bracket, and the connecting bracket has a connection hole for connecting to an external device.

[0015] In summary, this application has the following beneficial technical effects: When the frame, hinge, first connecting block, second connecting block, and round tube need to be welded into a finished door frame, the operator places the frame against the main support base, places the first connecting block against the inner edge of the frame, and fixes the position of the first connecting block using the first fixing unit. The second connecting block is then placed against the inner edge of the frame and fixed using the second fixing unit. Subsequently, the round tube is assembled between the first and second connecting blocks and fixed using the third fixing unit. Finally, the hinge is placed against the outer edge of the frame and fixed using the fourth fixing unit. Finally, the operator uses welding equipment to weld the contact points of the frame, hinge, first connecting block, second connecting block, and round tube. The fixed positions of each component facilitate welding operations, and prevent wobbling between components during welding, thus improving weld quality and production efficiency. Attached Figure Description

[0016] Figure 1 This is a structural diagram of a door frame in related technologies.

[0017] Figure 2 This is a schematic diagram of the overall structure of an embodiment of this application.

[0018] Figure 3 This is a structural schematic diagram illustrating the first positioning post in the embodiments of this application.

[0019] Figure 4 This is a schematic diagram illustrating the structure of the positioning pin in the embodiments of this application.

[0020] Reference numerals: 1. Frame; 2. Hinge; 3. Main positioning hole; 4. First connecting block; 5. Second connecting block; 6. Round tube; 7. First positioning hole; 8. Second positioning hole; 9. Base frame; 10. Main support seat; 11. First positioning seat; 12. First positioning post; 13. Second positioning seat; 14. Second positioning post; 15. Third positioning seat; 16. Limiting groove; 17. Reinforcing rib; 18. Support frame; 19. Support plate; 20. Limiting block; 21. Fourth positioning seat; 22. Limiting hole; 23. Positioning pin; 24. First quick push clamp; 25. Second quick push clamp; 26. Connecting frame; 27. Connecting hole; 28. Placement groove; 29. ​​Limiting frame. Detailed Implementation

[0021] The following is in conjunction with the appendix Figure 2-4 This application will be described in further detail.

[0022] This application discloses a welding fixture.

[0023] Reference Figure 2 and Figure 3The welding fixture includes a base frame 9. In this embodiment, the base frame 9 is mainly composed of square tubing. Compared to solid steel, square tubing is lighter while maintaining strength, making it easier to handle, install, or adjust the fixture, and reducing the foundation requirements for the ground or equipment. Under the same load-bearing capacity, square tubing saves more material than solid steel, reducing manufacturing costs.

[0024] Reference Figure 2 and Figure 3 A plurality of main support seats 10 are bolted to the bottom frame 9, and the frame 1 is mounted on the plurality of main support seats 10. In this embodiment, the plurality of main support seats 10 are set according to the shape of the frame 1. A plurality of second quick push clamps 25 are installed on the bottom frame 9, and the frame 1 is pressed against the clamping ends of the plurality of second quick push clamps 25 and the main support seats 10. In this embodiment, the number of both the main support seats 10 and the second quick push clamps 25 is set to 11, and the 11 second quick push clamps 25 are arranged along the outer edge of the bottom frame 9.

[0025] Reference Figure 2 and Figure 3 The bottom frame 9 is equipped with a first fixing unit for fixing the first connecting block 4, a second fixing unit for fixing the second connecting block 5, a third fixing unit for fixing the round tube 6, and a fourth fixing unit for fixing the hinge 2. Therefore, when it is necessary to weld the frame 1, hinge 2, first connecting block 4, second connecting block 5, and round tube 6 into a finished door frame, the operator places the frame 1 against the main support base 10, places the first connecting block 4 against the inner edge of the frame 1, and fixes the position of the first connecting block 4 using the first fixing unit. Then, the operator places the second connecting block 5 against the inner edge of the frame 1 and fixes the position of the second connecting block 5 using the second fixing unit. Subsequently, the operator assembles the round tube 6 between the first connecting block 4 and the second connecting block 5 and fixes the position of the round tube 6 using the third fixing unit. Finally, the operator places the hinge 2 against the outer edge of the frame 1 and fixes the position of the hinge 2 using the fourth fixing unit. Finally, the operator uses welding equipment to weld the contact points of the frame 1, hinge 2, first connecting block 4, second connecting block 5, and round tube 6. The fixed positions of each component to be welded facilitate welding operations and prevent shaking between components during the welding process, thus improving weld quality and production efficiency.

[0026] Reference Figure 2 and Figure 3A connecting frame 26 is installed on the bottom frame 9. The connecting frame 26 has a connecting hole 27 for connecting with external equipment. In this embodiment, the external equipment is a positioner. After the operator fixes the frame 1, hinge 2, first connecting block 4, second connecting block 5 and round tube 6, the operator first manually welds the contact surface of the frame 1, hinge 2, first connecting block 4, second connecting block 5 and round tube 6 on the front of the bottom frame 9. After the manual welding on the front is completed, the positioner is started to flip the welding fixture over as a whole. Then, the contact surface of the frame 1 and hinge 2 on the back of the bottom frame 9 is welded by the welding equipment. The weld height is 3mm.

[0027] Reference Figure 2 and Figure 3 The first fixing unit includes a first positioning seat 11 bolted to the base frame 9. A first positioning post 12, matching the size of the first positioning hole 7, is fixedly connected to the first positioning seat 11. The number of first positioning posts 12 can be set to multiple depending on the actual situation. The first connecting block 4 is mounted on the first positioning seat 11, and the first positioning post 12 is inserted into the first positioning hole 7. Therefore, the operator mounts the first connecting block 4 on the first positioning seat 11, so that the first positioning post 12 passes through the first positioning hole 7, thereby positioning the first connecting block 4. This fixes the position of the first connecting block 4 while reducing the possibility of positional displacement, thus improving the weld quality.

[0028] Reference Figure 2 and Figure 3 The second fixing unit includes a second positioning seat 13 bolted to the base frame 9. The second positioning seat 13 has a second positioning post 14 that matches the second positioning hole 8. The number of second positioning posts 14 can be set to multiple depending on the actual situation. The second connecting block 5 is mounted on the second positioning seat 13, and the second positioning post 14 is inserted into the second positioning hole 8. Therefore, the operator mounts the second connecting block 5 on the second positioning seat 13, allowing the second positioning post 14 to pass through the second positioning hole 8, thereby positioning the second connecting block 5. This fixes the position of the second connecting block 5 while reducing the possibility of positional displacement, thus improving weld quality.

[0029] Reference Figure 2 and Figure 3The third fixing unit includes a third positioning seat 15 bolted to the base frame 9. The third positioning seat 15 has a limiting groove 16 on its surface opposite to the base frame 9, matching the size of the circular tube 6. The circular tube 6 is mounted within the limiting groove 16. In this embodiment, two third positioning seats 15 are provided. A reinforcing rib 17 is provided between the third positioning seat 15 and the base frame 9. The reinforcing rib 17 significantly improves the connection rigidity between the positioning seat and the base frame 9, facilitating resistance to welding stress. Therefore, the limiting groove 16 limits the position of the circular tube 6, reducing the possibility of positional displacement during welding, improving the stability of the circular tube 6 mounted on the third positioning seat 15, and facilitating the connection of the circular tube 6 to the first connecting block 4 and the second connecting block 5.

[0030] Reference Figure 2 and Figure 3 A support frame 18 is bolted to the bottom frame 9. A limiting block 20 is rotatably connected to the support frame 18. The limiting block 20 is mounted on the support frame 18, and the end of the round tube 6 facing the limiting block 20 contacts the limiting block 20. The limiting block 20 supports the end of the round tube 6 and facilitates control of the assembly position of the round tube 6 relative to the first connecting block 4, reducing the possibility that the end of the round tube 6 facing the first connecting block 4 is too long, thus improving the welding quality of the finished door frame. A support plate 19 is inserted into the support frame 18, and part of the limiting block 20 is located between the support plate 19 and the support frame 18. The support plate 19 limits the position of the limiting block 20, improving the stability of the limiting block 20 mounted on the support frame 18.

[0031] Reference Figure 3 and Figure 4 In this embodiment, two hinges 2 need to be welded to the side of the frame 1, so the number of fourth fixing units is set to two. The two fourth fixing units each include a fourth positioning seat 21 bolted to the bottom frame 9. The fourth positioning seat 21 has a placement groove 28 matching the size of the hinge 2 on the surface away from the bottom frame 9. The placement groove 28 limits the position of the hinge 2, improving the stability of the hinge 2. A limiting frame 29 is hinged to the fourth positioning seat 21. The hinge 2 is mounted in the placement groove 28 and located between the limiting frame 29 and the fourth positioning seat 21. A limiting hole 22 is opened on the limiting frame 29. A positioning pin 23 matching the size of the limiting hole 22 is inserted into the limiting frame 29. The positioning pin 23 passes through the main positioning hole 3 and is inserted into the inner edge of the limiting hole 22. A first quick push clamp 24 is installed on the bottom frame 9. The limiting frame 29 is pressed between the clamping end of the first quick push clamp 24 and the bottom of the placement groove 28. The first quick push clamp 24 limits the position of the limiting frame 29, reducing the possibility of the limiting frame 29 shaking during welding, and facilitating the improvement of the weld quality of the contact surface between the frame 1 and the hinge 2.

[0032] Therefore, the operator inserts the positioning pin 23 through the main positioning hole 3 on the hinge 2 and into the inner edge of the limiting hole 22. At this time, the hinge 2 is installed on the limiting frame 29. Then, the limiting frame 29 is flipped so that the hinge 2 is located in the placement groove 28 of the fourth positioning seat 21. Finally, the first quick push clamp 24 is pushed to press the limiting frame 29 against the clamping end of the first quick push clamp 24 and the bottom of the placement groove 28, thereby fixing the position of the hinge 2.

[0033] The implementation principle of this application embodiment is as follows: When it is necessary to weld the frame 1, hinge 2, first connecting block 4, second connecting block 5, and round tube 6 into a finished door frame, the operator places the frame 1 against the main support base 10, pushes the second quick-push clamp 25, and presses the frame 1 against the clamping ends of several second quick-push clamps 25 and the main support base 10, thereby achieving complete fixation of the position of the frame 1; the first connecting block 4 is placed against the inner edge of the frame 1 and mounted on the first positioning base 11, so that the first positioning post 12 passes through the first positioning hole 7 to achieve positioning and fixation of the first connecting block 4; the second connecting block 5 is placed against the inner edge of the frame 1 and mounted on the second positioning base 13, so that the second positioning post 14 passes through the first positioning hole 7. The second positioning hole 8 is used to position and fix the second connecting block 5. The round tube 6 is assembled between the first connecting block 4 and the second connecting block 5. The round tube 6 is placed in the limiting groove 16 to fix its position. The two hinges 2 are placed against the outer edge of the frame 1 respectively. The operator inserts the positioning pin 23 through the main positioning hole 3 on the hinge 2 and then into the inner edge of the limiting hole 22. At this time, the hinge 2 is installed on the limiting frame 29. Then, the limiting frame 29 is flipped so that the hinge 2 is located in the placement groove 28 of the fourth positioning seat 21. Finally, the first quick push clamp 24 is pushed to press the limiting frame 29 against the clamping end of the first quick push clamp 24 and the bottom of the placement groove 28 to fix the position of the hinge 2. After the operator fixes the frame 1, hinge 2, first connecting block 4, second connecting block 5 and round tube 6, the operator first manually welds the contact surfaces of the frame 1, hinge 2, first connecting block 4, second connecting block 5 and round tube 6 on the front of the bottom frame 9. After the manual welding on the front is completed, the positioner is started to flip the welding fixture over as a whole. Then the contact surfaces of the frame 1 and hinge 2 on the back of the bottom frame 9 are welded using the welding equipment.

[0034] The first, second, third, and fourth fixing units fix the position of each component to be welded, which facilitates the welding operation and prevents the components from shaking during the welding process, thereby improving the weld quality and production efficiency.

[0035] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A welding fixture, characterized in that: Includes a base frame (9), on which a plurality of main support seats (10) are provided. The frame (1) is mounted on the plurality of main support seats (10). The base frame (9) is provided with a first fixing unit for fixing the first connecting block (4), a second fixing unit for fixing the second connecting block (5), a third fixing unit for fixing the round tube (6), and a fourth fixing unit for fixing the hinge (2).

2. The welding fixture according to claim 1, characterized in that: The first fixing unit includes a first positioning seat (11) set on the bottom frame (9), the first positioning seat (11) is provided with a first positioning post (12) that matches the first positioning hole (7), the first connecting block (4) is mounted on the first positioning seat (11) and the first positioning post (12) is inserted into the first positioning hole (7).

3. The welding fixture according to claim 1, characterized in that: The second fixing unit includes a second positioning seat (13) set on the bottom frame (9), the second positioning seat (13) is provided with a second positioning post (14) that matches the second positioning hole (8), the second connecting block (5) is mounted on the second positioning seat (13) and the second positioning post (14) is inserted into the second positioning hole (8).

4. The welding fixture according to claim 1, characterized in that: The third fixing unit includes a third positioning seat (15) set on the bottom frame (9). The third positioning seat (15) has a limiting groove (16) matching the round tube (6) on the surface away from the bottom frame (9). The round tube (6) is mounted in the limiting groove (16).

5. The welding fixture according to claim 4, characterized in that: A reinforcing rib (17) is provided between the third positioning seat (15) and the bottom frame (9).

6. The welding fixture according to claim 4, characterized in that: The bottom frame (9) is provided with a support frame (18), and a limiting block (20) is rotatably connected to the support frame (18). The limiting block (20) is mounted on the support frame (18), and the end of the round tube (6) facing the limiting block (20) is in contact with the limiting block (20).

7. The welding fixture according to claim 1, characterized in that: The fourth fixing unit includes a fourth positioning seat (21) set on the bottom frame (9). The fourth positioning seat (21) has a placement groove (28) matching the hinge (2) on the surface away from the bottom frame (9). A limit frame (29) is hinged on the fourth positioning seat (21). The hinge (2) is mounted in the placement groove (28) and located between the limit frame (29) and the fourth positioning seat (21). A limit hole (22) is opened on the limit frame (29). A positioning pin (23) matching the limit hole (22) is provided on the limit frame (29). The positioning pin (23) passes through the main positioning hole (3) and is inserted into the inner edge of the limit hole (22).

8. The welding fixture according to claim 7, characterized in that: The bottom frame (9) is provided with a first quick push clamp (24), and the limiting frame (29) abuts against the clamping end of the first quick push clamp (24) and the bottom of the placement groove (28).

9. The welding fixture according to claim 1, characterized in that: The bottom frame (9) is provided with a plurality of second quick push clamps (25), and the frame (1) is pressed against the clamping end of the plurality of second quick push clamps (25) and the main support base (10).

10. The welding fixture according to claim 1, characterized in that: The bottom frame (9) is provided with a connecting bracket (26), and the connecting bracket (26) is provided with a connecting hole (27) for connecting with external equipment.

Images