A clamp for welding excavator bracket
By designing fixtures for welding excavator brackets, the problem of difficult parts positioning during welding is solved, and a more efficient welding process and better quality welds are achieved.
Patent Information
- Application Number
- CN202420634179.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-28
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-03-28
AI Technical Summary
During the welding process, it is difficult to fix the bottom frame body, vertical arc plate, curved ring, bending plate and vertical plate at the same time, resulting in difficulty in accurately positioning the relative position, and the weld position is prone to deviation, affecting the quality and production efficiency of the weld.
A fixture for welding an excavator bracket is designed, including a base, a first fixing unit, a second fixing unit and a third fixing unit. The first fixing unit is used to position the bottom frame body, the second fixing unit is used to fix the vertical arc plate, and the third fixing unit is used to limit the curved ring, the bending plate and the vertical plate at the same time, thereby achieving stable positioning and accurate positioning of the parts.
Through this fixture, the operator can more easily maintain the stability of the bottom frame body, vertical arc plate, curved ring, bending plate and vertical plate during the welding process, reduce shaking, and improve weld quality and production efficiency.
Smart Images
Figure CN222711250U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of sheet metal processing, and in particular to a clamp for welding an excavator bracket. Background Art
[0002] The excavator bracket is an important part of the excavator. It is mainly responsible for the support and stability of the excavator and is usually made of sheet metal. During the manufacturing process of the excavator bracket, the components need to be welded into a whole.
[0003] Reference Figure 1 and Figure 2 The excavator support includes a bottom frame body 1, which is formed by bending sheet metal parts. The bottom frame body 1 includes a bottom frame frame 2 and a bottom frame folding block 3. The bottom frame body 1 is provided with a bottom frame positioning hole 4, a bottom frame groove 5 and a bottom frame angle groove 6. The excavator support also includes a vertical arc plate 7, a curved ring 8, a bent plate 9 and a vertical plate 10. The vertical arc plate 7 is provided with two side positioning holes 11. The operator needs to manually weld a vertical arc plate 7 to the side of the bottom frame body 1, and weld the curved ring 8, the bent plate 9 and the vertical plate 10 to the top of the bottom frame body 1, so that the finished excavator support is a whole after welding.
[0004] During the welding process of the above-mentioned bracket, it is difficult to simultaneously fix the positions of the bottom frame body, vertical arc plate, curved ring, bent plate, and vertical plate and weld them into a finished excavator bracket as a whole, resulting in that the relative positions of the bottom frame body, vertical arc plate, curved ring, bent plate, and vertical plate are difficult to accurately locate, and the weld position is prone to deviation, resulting in uneven weld quality, which is time-consuming and labor-intensive and leads to low production efficiency. Summary of the invention
[0005] In order to help solve the problem that it is difficult to simultaneously fix and weld the bottom frame body, vertical arc plate, curved ring, bent plate and vertical plate during the welding process of the existing excavator support, the present application provides a clamp for welding the excavator support, which adopts the following technical solution: it includes a base, the base is provided with a first fixing unit for fixing the bottom frame body, the base is provided with a second fixing unit for fixing the vertical arc plate and a third fixing unit for simultaneously fixing the curved ring, bent plate and vertical plate, the first fixing unit includes a bottom frame positioning column arranged on the base and matching the bottom frame positioning hole, the base is provided with a support seat, the bottom frame body is mounted on the support seat and the bottom frame positioning column passes through the bottom frame positioning hole.
[0006] Through the above technical scheme, the operator sets up the bottom frame body on the support seat and the bottom frame positioning column passes through the bottom frame positioning hole, so as to realize the positioning of the bottom frame body. When it is necessary to weld the arc vertical plate to the side of the bottom frame body, the vertical arc plate is fitted to the side of the bottom frame body, and the second fixing unit is used to press the vertical arc plate against the bottom frame body for fixation. Then the operator uses the welding equipment to spot weld the end face where the vertical arc plate contacts with the bottom frame body; when it is necessary to fix the curved ring, the bent plate and the vertical plate at the same time, the operator places the curved ring, the bent plate and the vertical plate on the top of the bottom frame body respectively, and uses the third fixing unit to limit the position of the curved ring, the bent plate and the vertical plate. Then the operator uses the welding equipment to spot weld the end face where the curved ring, the bent plate and the vertical plate contact with the top of the bottom frame body; after the spot welding of all parts is completed, the operator uses the welding manipulator to weld the whole into a finished excavator bracket. The first fixing unit is used to fix the bottom frame body, the second fixing unit is used to fix the vertical arc plate, and the third fixing unit is used to fix the curved ring, the bent plate and the vertical plate at the same time. This makes it convenient for operators to perform welding operations. During the welding process, the bottom frame body, the vertical arc plate, the curved ring, the bent plate and the vertical plate are not prone to shaking, thereby improving the weld quality and production efficiency.
[0007] In a specific possible implementation scheme, the support seat is provided with a limiting assembly for limiting the bottom frame body, and the limiting assembly includes two limiting plates arranged on the support seat, and the bottom frame border is located between the two limiting plates and contacts the two limiting plates.
[0008] Through the above technical solution, the two limiting plates support the bottom frame frame, while the bottom frame frame is limited between the two limiting plates, reducing the possibility of the bottom frame frame offset and improving the stability of the bottom frame body placement.
[0009] In a specific possible implementation scheme, the limiting plate is provided with a plurality of reinforcing ribs, and the plurality of reinforcing ribs are located between the supporting seat and the limiting plate.
[0010] Through the above technical solution, the reinforcing ribs improve the strength of the limiting plate, reduce the possibility of deformation of the limiting plate during welding, and improve the stability of the limiting plate.
[0011] In a specific possible implementation mode, a first quick clamp is provided on the base, and the bottom frame edge is pressed tightly between the clamp end of the first quick clamp and the limit plate.
[0012] Through the above technical solution, the bottom frame border is pressed tightly between the clamping end of the first quick clamp and the limit plate by the first quick clamp, thereby reducing the possibility of shaking of the bottom frame border, achieving independent fixation of the bottom frame border while improving the stability of the placement of the bottom frame border.
[0013] In a specific possible implementation mode, two second quick clamps are arranged on the base, and the bottom frame body is pressed tightly between the clamp ends of the two second quick clamps.
[0014] Through the above technical solution, the bottom frame body is pressed tightly between the clamp ends of the two second quick clamps by the second quick clamp, which further reduces the possibility of shaking of the bottom frame body and improves the stability of the bottom frame body during welding.
[0015] In a specific possible implementation mode, a support plate is provided on the support seat, and the support plate is located at the inner edge of the bottom frame groove and contacts the groove wall of the bottom frame groove.
[0016] Through the above technical solution, the support plate supports the groove of the bottom frame, so that the supporting force on the bottom frame body is evenly distributed, further reducing the possibility of shaking of the bottom frame body and improving the stability of the bottom frame body during welding.
[0017] In a specific feasible implementation scheme, the second fixing unit includes a side support seat arranged on the base, the side support seat is provided with a push-pull clamp, the clamp end of the push-pull clamp is provided with a connecting plate, and the surface of the connecting plate facing away from the push-pull clamp is provided with side positioning columns respectively matching with two side positioning holes, the two side positioning columns are sequentially passed through the side support seat and the side positioning holes of the vertical arc plate, and the vertical arc plate is pressed tightly between the two side positioning columns and the bottom frame body.
[0018] Through the above technical scheme, when it is necessary to weld the vertical arc plate to the side of the bottom frame body, the vertical arc plate is attached to the side of the bottom frame body, and the push-pull clamp is controlled to drive the connecting plate at the clamp end of the push-pull clamp to extend, thereby driving the two side positioning columns to pass through the side positioning holes respectively, and the vertical arc plate is pressed tightly between the two side positioning columns and the bottom frame body, thereby realizing the positioning of the vertical arc plate.
[0019] In a specific feasible implementation scheme, the third fixing unit includes a pressing plate and a positioning assembly for limiting the position of the pressing plate, the pressing plate is mounted on the bottom frame body, and is provided with a first placement groove matching the curved ring, a second placement groove matching the bent plate, and a third placement groove matching the vertical plate, the curved ring is located at the inner edge of the first placement groove and contacts with the groove wall of the first placement groove, the bent plate is located at the inner edge of the second placement groove and contacts with the groove wall of the second placement groove, and the vertical plate is located at the inner edge of the third placement groove and contacts with the groove wall of the third placement groove.
[0020] Through the above technical solution, when the curved ring, the bent plate and the vertical plate need to be fixed at the same time, the operator places the pressure plate on the top of the bottom frame body, and then places the curved ring in the first placement groove, the bent plate in the second placement groove, and the vertical plate in the third placement groove, thereby respectively realizing the positioning of the curved ring, the bent plate and the vertical plate, reducing the possibility of displacement during the welding process.
[0021] In a specific possible implementation scheme, a limiting seat is provided on the pressing plate, and the vertical plate is mounted on the limiting seat.
[0022] Through the above technical solution, the limiting seat not only supports the vertical board, but also reduces the possibility of the vertical board being deflected and tipped over by external forces, thereby improving the stability of the placement of the vertical board.
[0023] In a specific feasible implementation scheme, the positioning assembly includes a first positioning block which is arranged on the surface of the pressure plate facing the base and matches the bottom frame angle groove, the first positioning block contacts the groove wall of the bottom frame angle groove, and a second positioning block which matches the bottom frame body is arranged on the surface of the pressure plate facing the base, the second positioning block contacts the bottom frame body, and the bottom frame body is located between the first positioning block and the second positioning block.
[0024] Through the above technical solution, when the operator needs to place the pressure plate on the top of the bottom frame body, the first positioning block and the second positioning block are used to position the pressure plate so that the bottom frame body is located between the first positioning block and the second positioning block, thereby improving the accuracy of the pressure plate placement and the quality of the weld.
[0025] In summary, the present application has the following beneficial technical effects: the operator sets up the bottom frame body on the support seat and the bottom frame positioning column passes through the bottom frame positioning hole, so as to realize the positioning of the bottom frame body. When it is necessary to weld the arc vertical plate to the side of the bottom frame body, the vertical arc plate is fitted to the side of the bottom frame body, and the second fixing unit is used to press the vertical arc plate against the bottom frame body for fixation. Then the operator uses the welding equipment to spot weld the end face where the vertical arc plate contacts the bottom frame body; when it is necessary to fix the curved ring, the bent plate and the vertical plate at the same time, the operator places the curved ring, the bent plate and the vertical plate on the top of the bottom frame body respectively, and uses the third fixing unit to limit the position of the curved ring, the bent plate and the vertical plate. Then the operator uses the welding equipment to spot weld the end face where the curved ring, the bent plate and the vertical plate contact the top of the bottom frame body; after the spot welding of all parts is completed, the operator uses the welding robot to weld the whole into a finished excavator bracket. The first fixing unit is used to fix the bottom frame body, the second fixing unit is used to fix the vertical arc plate, and the third fixing unit is used to fix the curved ring, the bent plate and the vertical plate at the same time. This makes it convenient for operators to perform welding operations. During the welding process, the bottom frame body, the vertical arc plate, the curved ring, the bent plate and the vertical plate are not prone to shaking, thereby improving the weld quality and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a schematic diagram of the finished product structure of an excavator support in the prior art.
[0027] Figure 2 It is a structural schematic diagram used to reflect the bottom frame positioning hole in the prior art.
[0028] Figure 3 It is a schematic diagram of the overall structure of an embodiment of the present application.
[0029] Figure 4 It is a structural schematic diagram used to reflect the first positioning block in the embodiment of the present application.
[0030] 1. Bottom frame body; 2. Bottom frame frame; 3. Bottom frame folding block; 4. Bottom frame positioning hole; 5. Bottom frame groove; 6. Bottom frame corner groove; 7. Vertical arc plate; 8. Curved ring; 9. Bending plate; 10. Vertical plate; 11. Side positioning hole; 12. Base; 13. Bottom frame positioning column; 14. Support seat; 15. Limiting plate; 16. Reinforcing rib; 17. First quick clamp; 18. Second quick clamp; 19. Support plate; 20. Side support seat; 21. Push-pull clamp; 22. Connecting plate; 23. Side positioning column; 24. Pressing plate; 25. First placement groove; 26. Second placement groove; 27. Third placement groove; 28. Limiting seat; 29. First positioning block; 30. Second positioning block; 31. Bottom frame protrusion; 32. Protrusion placement hole; 33. Mounting bolt. DETAILED DESCRIPTION
[0031] The following is combined with Figure 3-4 This application is described in further detail.
[0032] An embodiment of the present application discloses a clamp for welding an excavator support.
[0033] Reference Figure 3 and Figure 4 The fixture for welding the excavator bracket includes a base 12. In the embodiment of the present application, four square tubes are welded at the bottom of the base 12. The square tubes are used to support the base 12 and raise the base 12. According to the actual use, a protrusion placement hole 32 matching the size of the bottom frame protrusion 31 can be opened on the base 12 to facilitate the placement of the bottom frame body 1. The base 12 is provided with a first fixing unit for fixing the bottom frame body 1, and the base 12 is provided with a second fixing unit for fixing the vertical arc plate 7 and a third fixing unit for fixing the curved ring 8, the bent plate 9 and the vertical plate 10 at the same time.
[0034] Reference Figure 3 and Figure 4 The first fixing unit includes a bottom frame positioning column 13 arranged on the base 12 and matching the size of the bottom frame positioning hole 4. A support seat 14 is inserted on the base 12. The operator sets the bottom frame body 1 on the support seat 14 and the bottom frame positioning column 13 passes through the bottom frame positioning hole 4, thereby realizing the positioning of the bottom frame body 1.
[0035] Reference Figure 3 and Figure 4 , a limiting assembly for limiting the bottom frame body 1 is provided on the support seat 14, and the limiting assembly includes two limiting plates 15 provided on the support seat 14, and the bottom frame frame 2 is located between the two limiting plates 15 and is in contact with the two limiting plates 15. In the embodiment of the present application, the number of limiting assemblies is set to two groups, one group is located on one side of the length direction of the support seat 14, and the other group is located on one side of the width direction of the support seat 14, so as to achieve the limitation of the bottom frame in the local length direction and the width direction. Two reinforcing ribs 16 are provided on each limiting plate 15, and the reinforcing ribs 16 are located between the support seat 14 and the limiting plate 15. The reinforcing ribs 16 increase the strength of the limiting plate 15, reduce the possibility of deformation of the limiting plate 15 during welding, and improve the stability of the limiting plate 15.
[0036] Reference Figure 3 and Figure 4 A support plate 19 is fixedly connected to the support seat 14, and the support plate 19 is located at the inner edge of the bottom frame groove 5 and contacts the groove wall of the bottom frame groove 5. Therefore, the support plate 19 supports the bottom frame groove 5, so that the supporting force on the bottom frame body 1 is evenly distributed, further reducing the possibility of shaking of the bottom frame body 1 and improving the stability of the bottom frame body 1 during welding.
[0037] Reference Figure 3 and Figure 4 The base 12 is provided with a first quick clamp 17, and the bottom frame frame 2 is pressed between the clamp end of the first quick clamp 17 and the limit plate 15. Two second quick clamps 18 are provided on the base 12, and the bottom frame body 1 is pressed between the clamp ends of the two second quick clamps 18.
[0038] Reference Figure 3 and Figure 4 The second fixing unit includes a side support 20 arranged on the base 12, a push-pull clamp 21 is arranged on the side support 20, a connecting plate 22 is installed at the clamping end of the push-pull clamp 21, and a side positioning column 23 matching the two side positioning holes 11 is arranged on the surface of the connecting plate 22 away from the push-pull clamp 21. The two side positioning columns 23 are sequentially passed through the side support 20 and the side positioning holes 11 of the vertical arc plate 7, and the vertical arc plate 7 is pressed between the two side positioning columns 23 and the bottom frame body 1.
[0039] Therefore, when it is necessary to weld the vertical arc plate to the side of the bottom frame body 1, the vertical arc plate 7 is attached to the side of the bottom frame body 1, and the push-pull clamp 21 is controlled to drive the connecting plate 22 at the clamping end of the push-pull clamp 21 to extend, thereby driving the two side positioning columns 23 to pass through the side positioning holes 11 respectively, and the vertical arc plate 7 is pressed between the two side positioning columns 23 and the bottom frame body 1, thereby realizing the positioning of the vertical arc plate 7.
[0040] Reference Figure 3 and Figure 4 The third fixing unit includes a pressing plate 24 and a positioning assembly for limiting the position of the pressing plate 24. The pressing plate 24 is mounted on the bottom frame body 1. The pressing plate 24 is provided with a first placement groove 25 matching the curved ring 8, a second placement groove 26 matching the bent plate 9, and a third placement groove 27 matching the vertical plate 10. The curved ring 8 is located at the inner edge of the first placement groove 25 and contacts the groove wall of the first placement groove 25. The bent plate 9 is located at the inner edge of the second placement groove 26 and contacts the groove wall of the second placement groove 26. The pressing plate 24 is plugged with a limiting seat 28. The vertical plate 10 is mounted on the limiting seat 28 and vertically located at the inner edge of the third placement groove 27. The vertical plate 10 contacts the groove wall of the third placement groove 27. The limiting seat 28 supports the vertical plate 10, reduces the possibility of the vertical plate 10 being offset and tipped by external force, and improves the stability of the placement of the vertical plate 10.
[0041] Therefore, when it is necessary to fix the curved ring 8, the bent plate 9 and the vertical plate 10 at the same time, the operator places the pressing plate 24 on the top of the bottom frame body 1, and then places the curved ring 8 against the first placement groove 25, places the bent plate 9 against the second placement groove 26, and places the vertical plate 10 against the third placement groove 27, thereby respectively realizing the positioning of the curved ring 8, the bent plate 9, and the vertical plate 10, reducing the possibility of displacement during the welding process.
[0042] Reference Figure 3 and Figure 4 The positioning assembly includes a first positioning block 29 disposed on the surface of the pressing plate 24 facing the base 12 and matching the size of the bottom frame angle slot 6. In the embodiment of the present application, the first positioning block 29 is pin-connected with the pressing plate 24, and the first positioning block 29 contacts the groove wall of the bottom frame angle slot 6; the second positioning block 30 matching the size of the bottom frame body 1 is bolt-connected on the surface of the pressing plate 24 facing the base 12, wherein the size of the bolt hole is slightly larger than the size of the mounting bolt 33, the second positioning block 30 contacts the bottom frame body 1, and the bottom frame body 1 is located between the first positioning block 29 and the second positioning block 30. Since the bottom frame body 1 is formed by bending a sheet metal part, each finished product of the bottom frame body 1 is prone to deviation, so the first positioning block 29 and the pressing plate 24 are configured to be pin-connected, and the second positioning block 30 and the pressing plate 24 are configured to be bolt-connected. When installing the pressure plate 24, the operator first fits the first positioning block 29 with the bottom frame corner groove 6 to achieve positioning, and then adjusts the tightness of the bolts between the second positioning block 30 and the pressure plate 24 according to the shape of the bottom frame body 1, thereby achieving fine-tuning of the position of the pressure plate 24 installed on the top of the bottom frame body 1, which is convenient for dealing with errors in the bottom frame body 1 caused by processing.
[0043] Therefore, when the operator needs to place the pressing plate 24 on the top of the bottom frame body 1, the first positioning block 29 and the second positioning block 30 are used to position the pressing plate 24 so that the bottom frame body 1 is located between the first positioning block 29 and the second positioning block 30, thereby improving the accuracy of the placement of the pressing plate 24 and improving the quality of the weld.
[0044] The implementation principle of the embodiment of the present application is as follows: the operator sets up the bottom frame body 1 on the support seat 14 and the bottom frame positioning column 13 passes through the bottom frame positioning hole 4, thereby realizing the positioning of the bottom frame body 1, and fits the vertical arc plate 7 to the side of the bottom frame body 1, controls the push-pull clamp 21, drives the connecting plate 22 at the clamp end of the push-pull clamp 21 to extend, thereby drives the two side positioning columns 23 to pass through the side positioning holes 11 respectively, and the vertical arc plate 7 is pressed tightly between the two side positioning columns 23 and the bottom frame body 1, thereby realizing the positioning of the vertical arc plate 7, and then the operator uses welding equipment to spot weld the end surface of the vertical arc plate 7 that contacts the bottom frame body 1; the operator Place the pressure plate 24 on the top of the bottom frame body 1, use the first positioning block 29 and the second positioning block 30 to position the pressure plate 24, then place the curved ring 8 in the first placement groove 25, place the bent plate 9 in the second placement groove 26, and place the vertical plate 10 in the third placement groove 27, so as to respectively position the curved ring 8, the bent plate 9, and the vertical plate 10, and then the operator uses welding equipment to spot weld the end faces of the curved ring 8, the bent plate 9 and the vertical plate 10 that are in contact with the top of the bottom frame body 1; after all the parts are spot welded, the operator uses a welding robot to weld the whole into a finished excavator bracket.
[0045] The bottom frame body 1 is fixed by the first fixing unit, the vertical arc plate 7 is fixed by the second fixing unit, and the curved ring 8, the bent plate 9 and the vertical plate 10 are fixed at the same time by the third fixing unit. This makes it convenient for operators to perform welding operations. During the welding process, the bottom frame body 1, the vertical arc plate 7, the curved ring 8, the bent plate 9 and the vertical plate 10 are not prone to shaking, thereby improving the weld quality and welding efficiency.
[0046] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.
Claims
1. A clamp for welding an excavator support, characterized in that: The invention comprises a base (12), wherein the base (12) is provided with a first fixing unit for fixing a bottom frame body (1), the base (12) is provided with a second fixing unit for fixing a vertical arc plate (7), and a third fixing unit for simultaneously fixing a curved ring (8), a bent plate (9) and a vertical plate (10), wherein the first fixing unit comprises a bottom frame positioning column (13) arranged on the base (12) and matching with a bottom frame positioning hole (4), the base (12) is provided with a support seat (14), the bottom frame body (1) is mounted on the support seat (14), and the bottom frame positioning column (13) passes through the bottom frame positioning hole (4).
2. The clamp for welding an excavator support according to claim 1, characterized in that: The support seat (14) is provided with a limiting assembly for limiting the bottom frame body (1), the limiting assembly comprising two limiting plates (15) arranged on the support seat (14), and the bottom frame frame (2) is located between the two limiting plates (15) and is in contact with the two limiting plates (15).
3. The clamp for welding an excavator support according to claim 2, characterized in that: The limiting plate (15) is provided with a plurality of reinforcing ribs (16), and the plurality of reinforcing ribs (16) are located between the supporting seat (14) and the limiting plate (15).
4. The clamp for welding an excavator support according to claim 2, characterized in that: A first quick clamp (17) is provided on the base (12), and the bottom frame frame (2) is pressed tightly between the clamp end of the first quick clamp (17) and the limiting plate (15).
5. The clamp for welding an excavator support according to claim 1, characterized in that: The base (12) is provided with two second quick clamps (18), and the bottom frame body (1) is pressed tightly between the clamp ends of the two second quick clamps (18).
6. The clamp for welding an excavator support according to claim 1, characterized in that: A support plate (19) is provided on the support seat (14), and the support plate (19) is located at the inner edge of the bottom frame groove (5) and is in contact with the groove wall of the bottom frame groove (5).
7. The clamp for welding an excavator support according to claim 1, characterized in that: The second fixing unit comprises a side support (20) arranged on the base (12), a push-pull clamp (21) is provided on the side support (20), a connecting plate (22) is provided at the clamping end of the push-pull clamp (21), and a side positioning column (23) respectively matching with the two side positioning holes (11) is provided on the surface of the connecting plate (22) away from the push-pull clamp (21), the two side positioning columns (23) are sequentially passed through the side support (20) and the side positioning holes (11) of the vertical arc plate (7), and the vertical arc plate (7) is pressed between the two side positioning columns (23) and the bottom frame body (1).
8. The clamp for welding an excavator support according to claim 1, characterized in that: The third fixing unit comprises a pressing plate (24) and a positioning assembly for limiting the position of the pressing plate (24); the pressing plate (24) is mounted on the bottom frame body (1); a first placement groove (25) matching the curved ring (8), a second placement groove (26) matching the bent plate (9), and a third placement groove (27) matching the vertical plate (10) are provided on the pressing plate (24); the curved ring (8) is located at the inner edge of the first placement groove (25) and contacts the groove wall of the first placement groove (25); the bent plate (9) is located at the inner edge of the second placement groove (26) and contacts the groove wall of the second placement groove (26); the vertical plate (10) is located at the inner edge of the third placement groove (27) and contacts the groove wall of the third placement groove (27).
9. The clamp for welding an excavator support according to claim 8, characterized in that: The pressure plate (24) is provided with a limit seat (28), and the vertical plate (10) is mounted on the limit seat (28).
10. The clamp for welding an excavator support according to claim 8, characterized in that: The positioning assembly comprises a first positioning block (29) arranged on the surface of the pressure plate (24) facing the base (12) and matching the bottom frame angle groove (6), the first positioning block (29) being in contact with the groove wall of the bottom frame angle groove (6), and a second positioning block (30) matching the bottom frame body (1) being arranged on the surface of the pressure plate (24) facing the base (12), the second positioning block (30) being in contact with the bottom frame body (1), and the bottom frame body (1) being located between the first positioning block (29) and the second positioning block (30).