A welding fixture for excavator brackets

Abstract

This application relates to a welding fixture for an excavator bracket, used in the field of sheet metal processing. It includes a base frame with a support seat. The support seat has a first limiting unit for positioning the base plate. The base frame also has a second limiting unit for positioning the first side frame, a third limiting unit for positioning the second side frame, a fourth limiting unit for positioning the connecting block, and a fifth limiting unit for simultaneously positioning the first and second bending rings. The technical advantages of this application are: because the positions of each component to be welded are fixed during welding, it facilitates welding operations for the operator, and prevents shaking between components during the welding process, thus improving weld quality and production efficiency.

Description

Technical Field

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

[0002] The excavator support frame is an important component of the excavator, serving to support the weight of the superstructure, transmit the working load, and ensure the relative stability of the various components. It is usually made of multiple sheet metal parts welded together.

[0003] Reference Figure 1 The excavator support includes components such as a base plate 1, a first side frame 2, and a second side frame 3. The first side frame 2 has a bent plate welded on it during previous production, and the second side frame 3 has side blocks welded on it during previous production. The first side frame 2 includes a first bent ring 4 to be welded onto it, and the second side frame 3 includes a connecting block 5 to be welded onto it. The connecting block 5 has a connecting hole 6. The base plate 1 includes a second bent ring 7 to be welded onto it. The base plate 1 has a bottom hole 8 and a limiting hole 9. An arc plate 10 is fixedly connected to the base plate 1, and the arc plate 10 has a waist-shaped hole 11. In related technologies, operators manually weld the first side frame 2 and the second side frame 3 onto the base plate 1, then manually weld the first bent ring 4 onto the first side frame 2, weld the connecting block 5 onto the second side frame 3, and weld the second bent ring 7 onto the base plate 1, thus forming the finished excavator support.

[0004] The above-mentioned manual welding method by operators makes it difficult for them to simultaneously fix and weld the base plate, first side frame, second side frame, connecting block, first bending ring and second bending ring into a whole during the welding process of the excavator bracket. This makes it difficult to accurately position the relative positions of the base plate, first side frame, second side frame, connecting block, first bending ring and second bending ring, and the weld position is prone to deviation, resulting in inconsistent weld quality. This method is time-consuming and labor-intensive, and also leads to low production efficiency of the excavator bracket. Summary of the Invention

[0005] To address the issue of manual welding by operators, which makes it difficult to simultaneously fix and weld the base plate, first side frame, second side frame, connecting block, first bending ring, and second bending ring into a single unit during the excavator bracket welding process, resulting in inaccurate positioning of the relative positions of the base plate, first side frame, second side frame, connecting block, first bending ring, and second bending ring, leading to weld position deviations, inconsistent weld quality, and low production efficiency of excavator brackets due to time and labor consumption, this application provides an excavator bracket welding fixture with the following technical solution: It includes a base frame, a support base on the base frame, a first limiting unit for limiting the position of the base plate on the support base, a second limiting unit for limiting the position of the first side frame, a third limiting unit for limiting the position of the second side frame, a fourth limiting unit for limiting the position of the connecting block, and a fifth limiting unit for simultaneously limiting the positions of the first bending ring and the second bending ring.

[0006] In one specific implementation, the first limiting unit includes a positioning post disposed on the support base and matching the bottom hole, the base plate being mounted on the support base and the positioning post passing through the bottom hole.

[0007] In one specific implementation, the second limiting unit includes a first support frame disposed on the bottom frame, a first abutment provided on the first support frame, and a first side frame mounted on the first support frame and in contact with the first abutment.

[0008] In one specific implementation scheme, the first support frame is provided with a plurality of first quick push clamps, and the first side frame abuts against the clamping ends of the plurality of first quick push clamps and the first support frame.

[0009] In one specific implementation, the third limiting unit includes a second support frame disposed on the bottom frame, a second abutment disposed on the second support frame, and a second side frame disposed on the second support frame and in contact with the second abutment.

[0010] In one specific implementation, the fourth limiting unit includes a connecting frame mounted on the bottom frame, a limiting frame hinged to the connecting frame, a positioning block mounted on the limiting frame, a locking bolt passing through the positioning block, a connecting block abutting between the positioning block and the second side frame, and the locking bolt being threaded into the connecting hole.

[0011] In one specific implementation, the bottom frame is provided with a second quick-release clamp, and the second side frame abuts against the clamping end of the second quick-release clamp and the bottom plate.

[0012] In one specific implementation, the fifth limiting unit includes a pressure plate disposed on the bottom frame, the pressure plate being mounted on the bottom plate, the pressure plate being provided with a limiting component for limiting the pressure plate on the bottom plate, the pressure plate being provided with a connecting seat, the connecting seat having a first limiting groove matching the first bending ring, the bottom plate having a second limiting groove matching the second bending ring, the first bending ring and the second bending ring being located at the inner edges of the first limiting groove and the second limiting groove, respectively.

[0013] In one specific implementation, the limiting component includes a pressure post disposed on the pressure plate that matches a limiting hole, the pressure post passing through the limiting hole.

[0014] In one specific implementation scheme, a third support frame is provided on the bottom frame, and a waist-shaped block matching the waist-shaped hole is provided on the third support frame. The arc plate is mounted on the third support frame and the waist-shaped block passes through the waist-shaped hole.

[0015] In summary, this application has the following beneficial technical effects: When it is necessary to weld the base plate, first side frame, second side frame, connecting block, first bending ring, and second bending ring into an excavator support assembly, the base plate is mounted on the support base. The positions of the base plate, first side frame, and second side frame are limited by the first, second, and third limiting units, respectively. Simultaneously, the position of the connecting block is limited by the fourth limiting unit, and the positions of the first and second bending rings are limited by the fifth limiting unit. Then, the operator uses welding equipment to weld the first bending ring onto the first side frame, weld the connecting block onto the second side frame, and weld the first side frame, second side frame, and second bending ring onto the base plate, thus forming the excavator support assembly. Because the positions of each component to be welded are fixed during welding, it facilitates welding operations for the operator, and prevents shaking between components during the welding process, thereby improving weld quality and production efficiency. Attached Figure Description

[0016] Figure 1 This is a structural diagram of an excavator support 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 schematic diagram illustrating the structure of the limiting frame in the embodiments of this application.

[0019] Figure 4 This is a structural schematic diagram illustrating the third support frame in the embodiments of this application.

[0020] Reference numerals: 1. Base plate; 2. First side frame; 3. Second side frame; 4. First bending ring; 5. Connecting block; 6. Connecting hole; 7. Second bending ring; 8. Bottom hole; 9. Limiting hole; 10. Arc plate; 11. Waist-shaped hole; 12. Base frame; 13. Support seat; 14. Positioning post; 15. First support frame; 16. First abutment frame; 17. First quick push clamp; 18. Second support frame; 19. Second abutment frame; 20. Connecting frame; 21. Limiting frame; 22. Positioning block; 23. Second quick push clamp; 24. Pressure plate; 25. Connecting seat; 26. First limiting groove; 27. Second limiting groove; 28. Pressure post; 29. ​​Third support frame; 30. Waist-shaped block. 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 for an excavator bracket.

[0023] Reference Figure 2 The excavator bracket welding fixture includes a base frame 12. In this embodiment, the base frame 12 is made 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 requirements for the ground or equipment foundation. Under the same load-bearing capacity, square tubing saves more material than solid steel, reducing manufacturing costs.

[0024] Reference Figure 2 A support base 13 is bolted to the bottom frame 12. In this embodiment, the support base 13 adopts a split design, which can save materials while supporting the bottom plate 1. The support base 13 is provided with a first limiting unit for limiting the position of the bottom plate 1. The bottom frame 12 is provided with a second limiting unit for limiting the position of the first side frame 2, a third limiting unit for limiting the position of the second side frame 3, a fourth limiting unit for limiting the position of the connecting block 5, and a fifth limiting unit for simultaneously limiting the positions of the first bending ring 4 and the second bending ring 7.

[0025] Therefore, when it is necessary to weld the base plate 1, the first side frame 2, the second side frame 3, the connecting block 5, the first bending ring 4, and the second bending ring 7 into an excavator support frame, the base plate 1 is placed on the support base 13. The positions of the base plate 1, the first side frame 2, and the second side frame 3 are limited by the first limiting unit, the second limiting unit, and the third limiting unit, respectively. At the same time, the position of the connecting block 5 is limited by the fourth limiting unit, and the positions of the first bending ring 4 and the second bending ring 7 are limited by the fifth limiting unit. Then, the operator uses welding equipment to weld the first bending ring 4 onto the first side frame 2, weld the connecting block 5 onto the second side frame 3, and weld the first side frame 2, the second side frame 3, and the second bending ring 7 onto the base plate 1, thus forming the excavator support frame. Since the positions of each component to be welded are fixed during welding, it is convenient for the operator to perform welding operations. At the same time, it is not easy for the components to shake during the welding process, which improves the weld quality and production efficiency.

[0026] Reference Figure 2 , Figure 3 and Figure 4 The first limiting unit includes a positioning post 14 that is set on the support base 13 and matches the size of the bottom hole 8. The base plate 1 is mounted on the support base 13 and the positioning post 14 passes through the bottom hole 8. In this embodiment, the number of positioning posts 14 is set to two corresponding to the number of bottom holes 8. The positioning post 14 plays a limiting role in the position of the bottom hole 8, limiting the base plate 1 on the support base 13.

[0027] Reference Figure 2 , Figure 3 and Figure 4 A third support frame 29 is bolted to the bottom frame 12. A waist-shaped block 30 matching the size of the waist-shaped hole 11 is installed on the third support frame 29. The arc plate 10 is mounted on the third support frame 29, and the waist-shaped block 30 passes through the waist-shaped hole 11. The waist-shaped block 30 limits the position of the waist-shaped hole 11, improving the stability of the arc plate 10 mounted on the third support frame 29 and further limiting the position of the bottom plate 1, thus improving the stability of the bottom plate 1 mounted on the support base 13.

[0028] Reference Figure 2 , Figure 3 and Figure 4The second limiting unit includes a first support frame 15 bolted to the base frame 12. A first abutment 16 is mounted on the first support frame 15. A first side frame 2 is mounted on the first support frame 15 and abuts against the first abutment 16. The first abutment 16 limits the position of the first side frame 2, reducing the possibility of positional displacement. A plurality of first quick-release clips 17 are mounted on the first support frame 15. The first side frame 2 is pressed between the clamping ends of the plurality of first quick-release clips 17 and the first support frame 15. In this embodiment, the number and position of the first quick-release clips 17 can be adjusted according to the actual situation on site. The clamping ends of the first quick-release clips 17 further fix the position of the first side frame 2, further reducing the possibility of the first side frame 2 shaking during welding.

[0029] Reference Figure 2 , Figure 3 and Figure 4 The third limiting unit includes a second support frame 18 bolted to the bottom frame 12. A second abutment 19 is installed on the second support frame 18. The second side frame 3 is mounted on the second support frame 18 and contacts the second abutment 19. The second abutment 19 limits the position of the second side frame 3 and reduces the possibility of the second side frame 3 shifting position.

[0030] Reference Figure 2 , Figure 3 and Figure 4 The fourth limiting unit includes a connecting frame 20 mounted on the bottom frame 12. A limiting frame 21 is hinged to the connecting frame 20. A positioning block 22 is mounted on the limiting frame 21, and a locking bolt passes through the positioning block 22. The connecting block 5 abuts against the positioning block 22 and the second side frame 3, and the locking bolt is threaded into the connecting hole 6. Therefore, when it is necessary to limit the position of the connecting block 5 on the second side frame 3, the connecting block 5 is placed on the corresponding position of the second side frame 3, the limiting frame 21 is flipped and moved to the top of the second side frame 3, so that the end face of the positioning block 22 on the limiting frame 21 facing the bottom frame 12 fits against the connecting block 5, and then the locking bolt is threaded into the connecting hole 6, thereby fixing the position of the connecting block 5.

[0031] Reference Figure 2 , Figure 3 and Figure 4 A second quick-release clamp 23 is bolted to the bottom frame 12, and the second side frame 3 is pressed against the clamping end of the second quick-release clamp 23 between the clamping end and the bottom plate 1. In this embodiment, the number and position of the second quick-release clamp 23 can be adjusted according to the actual site conditions. The clamping end of the second quick-release clamp 23 further fixes the position of the second side frame 3, further reducing the possibility of the second side frame 3 shaking during the welding process.

[0032] Reference Figure 2 , Figure 3 and Figure 4 The fifth limiting unit includes a pressure plate 24 set on the bottom frame 12. The pressure plate 24 is mounted on the bottom plate 1. The pressure plate 24 is provided with a limiting component that limits the pressure plate 24 on the bottom plate 1. The limiting component includes a pressure post 28 fixedly connected to the pressure plate 24 and matching the size of the limiting hole 9. The pressure post 28 passes through the limiting hole 9, and the limiting hole 9 limits the position of the pressure post 28. A connecting seat 25 is installed on the pressure plate 24. The pressure post 28 on the pressure plate 24 is inserted into the limiting hole 9 of the bottom plate 1. While the pressure plate 24 is installed on the bottom plate 1, the connecting seat 25 is mounted on the first side frame 2. The pressure plate 24 further limits the position of the bottom plate 1 and the first side frame 2. The connecting seat 25 has a first limiting groove 26 that matches the size of the first bent ring 4, and the base plate 1 has a second limiting groove 27 that matches the size of the second bent ring 7. The first bent ring 4 and the second bent ring 7 are located on the inner edges of the first limiting groove 26 and the second limiting groove 27, respectively. The first limiting groove 26 and the second limiting groove 27 are set with corresponding shapes for mounting the first bent ring 4 and the second limiting groove 27. The first limiting groove 26 limits the position of the first bent ring 4, and the second limiting groove 27 limits the position of the second bent ring 7, reducing the possibility of the first bent ring 4 and the second bent ring 7 shifting during the welding process.

[0033] The implementation principle of this application embodiment is as follows: When it is necessary to weld the base plate 1, the first side frame 2, the second side frame 3, the connecting block 5, the first bending ring 4 and the second bending ring 7 into an excavator bracket as a whole, the base plate 1 is mounted on the support base 13, so that the positioning column 14 passes through the bottom hole 8 and the waist block 30 passes through the waist hole 11. The first side frame 2 and the second side frame 3 are respectively mounted on the base plate 1, flat and without gaps. At this time, the first side frame 2 is mounted on the first support frame 15 and the first side frame 2 is in contact with the first abutment 16. The first side frame 2 is pressed between the clamping end of the first quick push clamp 17 and the first support frame 15. The second side frame 3 is mounted on the second support frame 18 and the second side frame 3 is in contact with the second abutment 19. The second side frame 3 is pressed between the clamping end of the second quick push clamp 23 and the base plate 1. The operator uses welding equipment to first spot-join the contact surfaces of the first side frame 2, the second side frame 3 and the base plate 1 and then weld them as a whole. The corner weld height is 8mm.

[0034] The pressure plate 24 is placed on top of the base plate 1, and the pressure column 28 passes through the limiting hole 9. The first bending ring 4 is placed on the first side frame 2, at which time the first bending ring 4 is located at the inner edge of the first limiting groove 26. The second bending ring 7 is placed on the base plate 1, at which time the second bending ring 7 is located at the inner edge of the second limiting groove 27. The connecting block 5 is placed on the second side frame 3. The limiting frame 21 is flipped and moved to the top of the second side frame 3, so that the end face of the positioning block 22 on the limiting frame 21 facing the bottom frame 12 is in contact with the connecting block 5. Then, the locking bolt is threaded into the connecting hole 6. The operator welds the connecting block 5 to the second side frame 3 using welding equipment. The corner weld height is 3mm. The first bending ring 4 is welded to the first side frame 2, and the second bending ring 7 is welded to the base plate 1. The bevel weld height of the first bending plate and the second bending plate is 3mm. Because the positions of each component to be welded are fixed during welding, it is convenient for operators to perform welding operations, and the components are less likely to shake during the welding process, which improves the quality of the weld 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 for an excavator bracket, characterized in that: Includes a base frame (12), on which a support base (13) is provided. The support base (13) is provided with a first limiting unit for limiting the position of the base plate (1). The base frame (12) is provided with a second limiting unit for limiting the position of the first side frame (2), a third limiting unit for limiting the position of the second side frame (3), a fourth limiting unit for limiting the position of the connecting block (5), and a fifth limiting unit for simultaneously limiting the positions of the first bending ring (4) and the second bending ring (7).

2. The excavator bracket welding fixture according to claim 1, characterized in that: The first limiting unit includes a positioning post (14) that is matched with the bottom hole (8) and is set on the support base (13). The base plate (1) is mounted on the support base (13) and the positioning post (14) passes through the bottom hole (8).

3. The excavator bracket welding fixture according to claim 1, characterized in that: The second limiting unit includes a first support frame (15) disposed on the bottom frame (12), a first abutment (16) disposed on the first support frame (15), and a first side frame (2) disposed on the first support frame (15) and in contact with the first abutment (16).

4. The excavator bracket welding fixture according to claim 3, characterized in that: The first support frame (15) is provided with a plurality of first quick push clamps (17), and the first side frame (2) abuts against the clamping ends of the plurality of first quick push clamps (17) and the first support frame (15).

5. The excavator bracket welding fixture according to claim 1, characterized in that: The third limiting unit includes a second support frame (18) set on the bottom frame (12), a second abutment (19) provided on the second support frame (18), and a second side frame (3) set on the second support frame (18) and in contact with the second abutment (19).

6. The excavator bracket welding fixture according to claim 1, characterized in that: The fourth limiting unit includes a connecting frame (20) set on the bottom frame (12), a limiting frame (21) is hinged on the connecting frame (20), a positioning block (22) is provided on the limiting frame (21), a locking bolt is provided on the positioning block (22), a connecting block (5) abuts between the positioning block (22) and the second side frame (3), and the locking bolt is threaded in the connecting hole (6).

7. The excavator bracket welding fixture according to claim 1, characterized in that: The bottom frame (12) is provided with a second quick push clamp (23), and the second side frame (3) is pressed between the clamping end of the second quick push clamp (23) and the bottom plate (1).

8. The excavator bracket welding fixture according to claim 1, characterized in that: The fifth limiting unit includes a pressure plate (24) set on the bottom frame (12). The pressure plate (24) is mounted on the bottom plate (1). The pressure plate (24) is provided with a limiting component that limits the pressure plate (24) on the bottom plate (1). The pressure plate (24) is provided with a connecting seat (25). The connecting seat (25) is provided with a first limiting groove (26) that matches the first bending ring (4). The bottom plate (1) is provided with a second limiting groove (27) that matches the second bending ring (7). The first bending ring (4) and the second bending ring (7) are located at the inner edges of the first limiting groove (26) and the second limiting groove (27), respectively.

9. The excavator bracket welding fixture according to claim 8, characterized in that: The limiting component includes a pressure post (28) disposed on the pressure plate (24) and matching the limiting hole (9), the pressure post (28) passing through the limiting hole (9).

10. The excavator bracket welding fixture according to claim 1, characterized in that: The bottom frame (12) is provided with a third support frame (29), and the third support frame (29) is provided with a waist-shaped block (30) that matches the waist-shaped hole (11). The arc plate (10) is mounted on the third support frame (29) and the waist-shaped block (30) passes through the waist-shaped hole (11).

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