Welding fixture
By designing a fixture for welding excavator brackets, and using fixing devices and clamping devices to stabilize the fixing device and clamping device, the problem of difficult position fixation during welding excavator brackets is solved, and the quality and production efficiency of welds are improved.
Patent Information
- Application Number
- CN202420524419.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-18
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-03-18
AI Technical Summary
During the welding process, it is difficult to fix the positions of curved rings, pillars, clamps, side bent plates and bent plates 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 of welds. efficiency.
A welding fixture is designed, including a base, a fixing device and a clamping device. The fixing device fixes the frame, curved ring, pillar, clamp and side bent plate respectively through multiple fixing units. The clamping device fixes the frame and bent plate through the clamping unit to ensure that each component is not easy to shake during welding. .
Through the use of fixing devices and clamping devices, operators can position and fix each component more stably during the welding process, improving the quality and production efficiency of welds, reducing deviations and time-consuming during the welding process.
Smart Images
Figure CN222471277U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of sheet metal processing, and in particular to a welding fixture. Background Art
[0002] The excavator support is an important part of the excavator. It is usually made of sheet metal and is mainly used to support the body of the excavator and ensure its stable operation. The design and structure of the support have a vital impact on the performance and safety of the excavator. During the production and manufacturing process of the excavator support, the various components need to be welded into a whole.
[0003] Reference Figure 1 The excavator support includes a frame 4, which has an inner concave surface 5 and an outer peripheral surface 6. Two bottom positioning holes 7 are provided at the bottom of the frame 4, and a semicircular side positioning hole 8 is provided on the side plate of the frame 4. The frame 4 also includes a curved ring 9, a pillar 10, a side bending plate 11, a bending plate 12 and a clamping block 13. The clamping block 13 is provided with a thread groove 14. The side bending plate 11 has a T end 15 and a convex end 16, and the bending plate 12 has an inner annular surface 17 and an outer annular surface 18. The operator needs to manually weld the curved ring 9, the pillar 10 and the clamping block 13 to the inner concave surface 5 of the frame 4, weld the side bending plate 11 to one side of the inner concave surface 5 of the frame 4, and then flip the frame 4, and weld the two ends of the bending plate 12 to the outer peripheral surface 6 of the frame 4, so that the finished 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 curved ring, pillar, clamp block, side bending plate and bent plate and weld them as a whole, which makes it difficult to accurately locate the relative positions of the curved ring, pillar, clamp block, side bending plate and bent plate, and the weld position is prone to deviation, resulting in uneven quality of the weld, 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 the positions of the curved ring, pillar, block, side bending plate and bent plate of the excavator support and weld them into a whole during the welding process, the present application provides a welding fixture, which adopts the following technical solution: it includes a base, the base is provided with a fixing device, the fixing device includes a first fixing unit for fixing the frame, a second fixing unit for fixing the curved ring and the pillar at the same time, a third fixing unit for fixing the block and a fourth fixing unit for fixing the side bending plate, and the base is also provided with a clamping device, the clamping device includes a first clamping unit for fixing the frame and a second clamping unit for fixing the bent plate; when it is necessary to weld the two ends of the bent plate to the outer peripheral surface of the frame, the frame is fixed by using the first clamping unit; the first fixing unit includes a bottom positioning column arranged on the base and matching the bottom positioning hole, the outer peripheral surface of the frame is mounted on the base and the bottom positioning column passes through the bottom positioning hole.
[0006] Through the above technical scheme, when it is necessary to weld the curved ring and the pillar to the inner concave surface of the frame, the operator sets the outer peripheral surface of the frame on the base, passes the bottom positioning column through the bottom positioning hole of the frame to realize the positioning of the frame, places the curved ring and the pillar on the inner concave surface of the frame respectively, and uses the second fixing unit to limit the curved ring and the pillar on the inner concave surface of the frame to realize fixation, and then the operator uses the welding equipment to weld the curved ring and the pillar to the contact point of the inner concave surface of the frame; when it is necessary to weld the clamping block to the inner concave surface of the frame, the operator fits the clamping block to the inner concave surface of the frame, and uses the third fixing unit to press the clamping block against the frame to realize fixation, and then the operator uses the welding equipment to weld the end face of the clamping block in contact with the frame; when it is necessary to weld the side bent plate to the frame, the operator fits the side bent plate to the inner concave surface of the frame, and uses the third fixing unit to fix the side bent plate, and then the operator uses the welding equipment to weld the side bent plate to the contact point of the inner concave surface of the frame. When the two ends of the bent plate need to be welded to the outer circumference of the frame, the frame is fixed by the first clamping unit, and the bent plate is fixed by the second clamping unit. Then the operator uses the welding equipment to weld the two ends of the bent plate to the outer circumference of the frame. The frame, the clamping block, the curved ring, the pillar and the side bending plate are fixed by the fixing device, and the frame and the bent plate are fixed by the clamping device, which is convenient for the operator to perform the welding operation and is not easy to shake during the welding process, thereby improving the weld quality and production efficiency.
[0007] In a specific possible implementation manner, the first fixing unit further comprises a clamping seat arranged on the base, a first quick clamp is arranged on the clamping seat, and the frame is pressed tightly between the clamping end of the first quick clamp and the base.
[0008] Through the above technical solution, the frame is pressed between the clamp end of the first quick clamp and the base by the first quick clamp, thereby reducing the possibility of frame shaking, achieving independent fixation of the frame while improving the stability of frame placement.
[0009] In a specific feasible implementation scheme, the second fixing unit includes a first mounting seat arranged on the base, a first fixing frame is hinged on the first mounting seat, a fixing plate is provided on the first fixing frame, a first positioning groove matching the curved ring is provided on the fixing plate, a second positioning groove matching the pillar is provided on the groove wall of the first positioning groove, the curved ring contacts the groove wall of the first positioning groove, and the outer edge of the pillar contacts the groove wall of the second positioning groove.
[0010] Through the above technical solution, when it is necessary to weld the curved ring and the clamping block to the inner concave surface of the frame, the operator rotates the first fixing frame, places the curved ring on the inner concave surface of the frame and the curved ring contacts the groove wall of the first fixing groove, places the pillar on the inner concave surface of the frame and the outer edge of the pillar contacts the groove wall of the second positioning groove, thereby achieving the limited fixation of the curved ring and the pillar, and then the operator uses welding equipment to perform spot welding operations on the end faces of the curved ring and the pillar that contact the frame, thereby reducing the possibility of displacement of the curved ring and the pillar during welding and improving the stability of the welding operation.
[0011] In a specific feasible implementation scheme, the third fixing unit includes a second mounting seat arranged on the base, a second fixing frame is hinged on the second mounting seat, a threaded hole matching the thread groove of the block is opened on the second fixing frame, a fixing bolt is passed through the threaded hole and one end of the fixing bolt facing the block is threadedly connected in the thread groove of the block.
[0012] Through the above technical solution, when it is necessary to weld the card block to the inner concave surface of the frame, the operator fits the card block to the inner concave surface of the frame, rotates the second fixing frame, so that the card block is limited between the second fixing frame and the inner concave surface of the frame to achieve the limitation of the card block, the operator connects the fixing bolt threadably in the thread groove of the card block to achieve the fixation of the card block, and then the operator uses welding equipment to spot weld the end face where the card block contacts the frame, and uses the third fixing unit to control the card block individually, thereby reducing the possibility of shaking of the card block and improving welding efficiency.
[0013] In a specific possible implementation manner, the third fixing unit further includes an anti-dropping block disposed on the second fixing frame, and the clamping block is pressed tightly between the anti-dropping block and the inner concave surface of the frame.
[0014] Through the above technical solution, the anti-drop block limits the position of the card block, reduces the possibility of the card block being offset, further limits the position of the card block, and improves the stability of the card block placement during welding.
[0015] In a specific feasible implementation scheme, the fourth fixed unit includes a third mounting seat arranged on the base, two limit blocks are provided on the surface of the third mounting seat facing the frame, the T end of the side bending plate is located between the two limit blocks and is in contact with the two limit blocks, and the fourth fixed unit also includes a third fixed frame hinged on the second mounting seat, the third fixed frame is provided with a support block matching the convex end of the side bending plate, and the convex end of the side bending plate is mounted on the support block.
[0016] Through the above technical solution, the support block supports the convex end of the side bend plate and at the same time, the fitting convex end limits the position of the side bend plate. The T end of the side bend plate is limited between the two limiting blocks, thereby achieving fixation of the side bend plate, reducing the possibility of displacement of the side bend plate, and improving the placement stability of the side bend plate during welding operations.
[0017] In a specific possible implementation manner, the first clamping unit includes a side positioning column arranged on the base and matching the side positioning hole, the outer peripheral surface of the frame is mounted on the base and the side positioning column passes through the side positioning hole.
[0018] Through the above technical solution, when the bent plate needs to be welded to the outer peripheral surface of the frame, the operator sets up the outer peripheral surface of the frame on the base, and passes the side positioning columns through the side positioning holes of the frame to achieve positioning of the frame, thereby reducing the possibility of frame deviation and improving the stability of the placement of the bent plate.
[0019] In a specific embodiment, the first clamping unit further comprises a second quick clamp disposed on the base, and the frame is pressed tightly between the clamp end of the second quick clamp and the base.
[0020] Through the above technical solution, the frame is pressed tightly between the clamp end of the second quick clamp and the base by the second quick clamp, thereby reducing the possibility of frame shaking, achieving independent fixation of the frame while improving the stability of frame placement.
[0021] In a specific possible implementation scheme, the second clamping unit includes a support frame arranged on the base and matching the inner annular surface of the bending plate, the inner annular surface of the bending plate is mounted on the support frame and both ends of the bending plate are in contact with the outer peripheral surface of the frame, and the second clamping unit also includes a third quick clamp arranged on the support frame, and the bending plate is clamped between the clamping end of the third quick clamp and the base.
[0022] Through the above technical solution, the support frame plays a supporting and limiting role on the inner annular surface of the bent plate, and the bent plate is pressed tightly between the clamping end of the third quick clamp and the base through the third quick clamp, thereby fixing the bent plate, reducing the possibility of shaking of the bent plate, and improving the placement stability and welding efficiency of the bent plate during welding operations.
[0023] In a specific possible implementation manner, the second clamping unit further comprises a quick push clamp arranged on the base, and the bent plate is pressed tightly between the clamp end of the quick push clamp and the support frame.
[0024] Through the above technical solution, the clamp end of the quick push clamp plays a role in fine-tuning the position of the bent plate, and at the same time, the bent plate is pressed tightly between the clamp end of the quick push clamp and the support frame, thereby further fixing the position of the bent plate, further improving the placement stability of the bent plate and the weld quality during welding operations.
[0025] In summary, the present application has the following beneficial technical effects: when it is necessary to weld the curved ring and the pillar on the inner concave surface of the frame, the operator sets the outer peripheral surface of the frame on the base, passes the bottom positioning column through the bottom positioning hole of the frame to realize the positioning of the frame, respectively places the curved ring and the pillar on the inner concave surface of the frame, and uses the second fixing unit to limit the curved ring and the pillar on the inner concave surface of the frame for fixation, and then the operator uses the welding equipment to weld the curved ring and the pillar at the contact point with the inner concave surface of the frame; when it is necessary to weld the clamping block on the inner concave surface of the frame, the operator fits the clamping block on the inner concave surface of the frame, and uses the third fixing unit to press the clamping block against the frame for fixation, and then the operator uses the welding equipment to weld the end face of the clamping block in contact with the frame; when it is necessary to weld the side bent plate on the frame, the operator fits the side bent plate on the inner concave surface of the frame, and uses the third fixing unit to fix the side bent plate, and then the operator uses the welding equipment to weld the side bent plate at the contact point with the inner concave surface of the frame. When the two ends of the bent plate need to be welded to the outer circumference of the frame, the frame is fixed by the first clamping unit, and the bent plate is fixed by the second clamping unit. Then the operator uses the welding equipment to weld the two ends of the bent plate to the outer circumference of the frame. The frame, the clamping block, the curved ring, the pillar and the side bending plate are fixed by the fixing device, and the frame and the bent plate are fixed by the clamping device, which is convenient for the operator to perform the welding operation and is not easy to shake during the welding process, 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 parts bracket in the prior art.
[0027] Figure 2 It is a schematic diagram of the overall structure of an embodiment of the present application.
[0028] Figure numerals: 1, base; 2, fixing device; 3, clamping device; 4, frame; 5, inner concave surface; 6, outer peripheral surface; 7, bottom positioning hole; 8, side positioning hole; 9, curved ring; 10, pillar; 11, side bending plate; 12, bending plate; 13, clamping block; 14, threaded groove; 15, T end; 16, convex end; 17, inner annular surface; 18, outer annular surface; 19, bottom positioning column; 20, clamping seat; 21, first quick clamp; 22, first Mounting seat; 23. First fixing frame; 24. Fixing plate; 25. First positioning groove; 26. Second positioning groove; 27. Second mounting seat; 28. Second fixing frame; 29. Fixing bolt; 30. Anti-slip block; 31. Third mounting seat; 32. Limit block; 33. Third fixing frame; 34. Support block; 35. Side positioning column; 36. Second quick clamp; 37. Support frame; 38. Third quick clamp; 39. Quick push clamp; 40. Round rod. DETAILED DESCRIPTION
[0029] The following is combined with Figure 2 This application is described in further detail.
[0030] An embodiment of the present application discloses a welding fixture.
[0031] Reference Figure 2 The welding fixture includes a base 1, on which a fixing device 2 is arranged, the fixing device 2 includes a first fixing unit for fixing the frame 4, a second fixing unit for simultaneously fixing the curved ring 9 and the pillar 10, a third fixing unit for fixing the block 13 and a fourth fixing unit for fixing the side bent plate 11, and a clamping device 3 is also arranged on the base 1, the clamping device 3 includes a first clamping unit for fixing the frame 4 and a second clamping unit for fixing the bent plate 12; when it is necessary to weld the two ends of the bent plate 12 to the outer peripheral surface 6 of the frame 4, the frame 4 is fixed by using the first clamping unit.
[0032] Reference Figure 2 The first fixing unit includes two bottom positioning columns 19 arranged on the base 1 and matching the sizes of the two bottom positioning holes 7. The outer circumference 6 of the frame 4 is mounted on the base 1 and the two bottom positioning columns 19 are respectively passed through the bottom positioning holes 7. In the embodiment of the present application, a plurality of round bars 40 can be welded on the base 1 according to actual conditions, and the outer circumference 6 of the frame 4 can be mounted on the round bars 40 of the base 1, so as to facilitate the cleaning of welding slag between the base 1 and the frame 4.
[0033] Reference Figure 2The first fixing unit also includes a clamping seat 20 bolted to the base 1, and a first quick clamp 21 is bolted to the clamping seat 20. The frame 4 is pressed between the clamping end of the first quick clamp 21 and the base 1. The operator can remove the first quick clamp 21 from the clamping seat 20 by disassembling the bolts, which is convenient for subsequent replacement of different models of the first quick clamp 21.
[0034] Therefore, the operator places the outer peripheral surface 6 of the frame 4 on the base 1, and passes the bottom positioning column 19 through the bottom positioning hole 7 of the frame 4 to achieve positioning of the frame 4. The frame 4 is pressed tightly between the clamping end of the first quick clamp 21 and the base 1 through the first quick clamp 21, thereby reducing the possibility of shaking of the frame 4, achieving independent fixation of the frame 4 while improving the stability of the placement of the frame 4.
[0035] Reference Figure 2 The second fixing unit includes a first mounting seat 22 bolted to the base 1, a first fixing frame 23 hinged on the first mounting seat 22, a fixing plate 24 inserted on the first fixing frame 23, a first positioning groove 25 matching the size of the curved ring 9 is opened on the fixing plate 24, a second positioning groove 26 matching the size of the pillar 10 is opened on the groove wall of the first positioning groove 25, the curved ring 9 contacts the groove wall of the first positioning groove 25, and the outer edge of the pillar 10 contacts the groove wall of the second positioning groove 26.
[0036] Therefore, when it is necessary to weld the curved ring 9 and the block 13 to the inner concave surface 5 of the frame 4, the operator rotates the first fixing frame 23, places the curved ring 9 on the inner concave surface 5 of the frame 4 and the curved ring 9 contacts the groove wall of the first fixing groove, places the pillar 10 on the inner concave surface 5 of the frame 4 and the outer edge of the pillar 10 contacts the groove wall of the second positioning groove 26, thereby achieving the limited fixation of the curved ring 9 and the pillar 10, and then the operator uses welding equipment to perform spot welding operations on the end faces of the curved ring 9 and the pillar 10 that contact the frame 4, thereby reducing the possibility of displacement of the curved ring 9 and the pillar 10 during welding and improving the stability of the welding operation.
[0037] Reference Figure 2The third fixing unit includes a second mounting seat 27 bolted to the base 1, a second fixing frame 28 is hinged to the second mounting seat 27, a threaded hole matching the size of the thread groove 14 of the block 13 is provided on the second fixing frame 28, a fixing bolt 29 is passed through the threaded hole, and one end of the fixing bolt 29 facing the block 13 is threadedly connected to the thread groove 14 of the block 13. The third fixing unit also includes an anti-slip block 30 plugged into the second fixing frame 28, and the block 13 is pressed tightly between the anti-slip block 30 and the inner concave surface 5 of the frame 4. The anti-slip block 30 limits the position of the block 13, reduces the possibility of the block 13 being offset, further limits the position of the block 13, and improves the stability of the placement of the block 13 during welding.
[0038] Therefore, when it is necessary to weld the block 13 to the inner concave surface 5 of the frame 4, the operator fits the block 13 to the inner concave surface 5 of the frame 4, rotates the second fixing frame 28, so that the block 13 is limited between the second fixing frame 28 and the side of the inner concave surface 5 to achieve the limitation of the block 13, and the operator threadedly connects the fixing bolt 29 in the thread groove 14 of the block 13 to achieve the fixation of the block 13, and then the operator uses the welding equipment to spot weld the end face where the block 13 contacts the frame 4, and uses the third fixing unit to control the block 13 separately, thereby reducing the possibility of shaking of the block 13 and improving the welding efficiency.
[0039] Reference Figure 2 The fourth fixing unit includes a third mounting seat 31 bolted to the base 1. In the embodiment of the present application, a plurality of reinforcing ribs can be provided on the third mounting seat 31 according to actual conditions. The reinforcing ribs can improve the strength and rigidity of the third mounting seat 31. Two limit blocks 32 are bolted to the surface of the third mounting seat 31 facing the frame 4. The T end 15 of the side bending plate 11 is located between the two limit blocks 32 and contacts the two limit blocks 32. The fourth fixing unit also includes a third fixing frame 33 hinged on the second mounting seat 27. A support block 34 matching the convex end 16 of the side bending plate 11 is bolted to the third fixing frame 33. The convex end 16 of the side bending plate 11 is mounted on the support block 34.
[0040] Therefore, when it is necessary to weld the side bend plate 11 to the inner concave surface 5 of the frame 4, the operator rotates the third fixing frame 33 and places the T end 15 of the side bend plate 11 between the two limiting plates, thereby achieving the limitation of the T end 15 of the side bend plate 11, and the support block 34 supports the convex end 16 of the side bend plate 11 and at the same time, fits the convex end 16 to limit the position of the side bend plate 11, thereby achieving the fixation of the side bend plate 11, reducing the possibility of the side bend plate 11 being offset, and improving the placement stability of the side bend plate 11 during the welding operation.
[0041] Reference Figure 2The first clamping unit includes a side positioning column 35 bolted to the base 1 and matching the size of the side positioning hole 8. The outer peripheral surface 6 of the frame 4 is mounted on the base 1 and the side positioning column 35 passes through the side positioning hole 8. The first clamping unit also includes a second quick clamp 36 bolted to the base 1. The frame 4 is pressed between the clamp end of the second quick clamp 36 and the base 1. The frame 4 is pressed between the clamp end of the second quick clamp 36 and the base 1 by the second quick clamp 36, thereby reducing the possibility of shaking of the frame 4, achieving the independent fixation of the frame 4 while improving the stability of the placement of the frame 4.
[0042] Therefore, when it is necessary to weld the bent plate 12 to the outer peripheral surface 6 of the frame 4, the operator mounts the outer peripheral surface 6 of the frame 4 on the base 1, and passes the side positioning column 35 through the side positioning hole 8 of the frame 4 to achieve positioning of the frame 4, thereby reducing the possibility of deviation of the frame 4 and improving the stability of the placement of the bent plate 12.
[0043] Reference Figure 2 The second clamping unit includes a support frame 37 bolted to the base 1 and matching the shape of the inner annular surface 17 of the bent plate 12. The inner annular surface 17 of the bent plate 12 is mounted on the support frame 37 and both ends of the bent plate 12 are in contact with the outer peripheral surface 6 of the frame 4. In the embodiment of the present application, a plurality of round bars 40 can be arranged between the support frame 37 and the inner annular surface 17 of the bent plate 12 to facilitate the cleaning of welding slag. The second clamping unit also includes a third quick clamp 38 arranged on the support frame 37, and the bent plate 12 is pressed tightly between the clamp end of the third quick clamp 38 and the base 1.
[0044] Reference Figure 2 The second clamping unit further includes a quick push clamp 39 bolted to the base 1, and the bent plate 12 is pressed tightly between the clamp end of the quick push clamp 39 and the support frame 37. In the embodiment of the present application, the number of quick push clamps 39 is set to two, and the two quick push clamps 39 are respectively arranged on both sides of the outer annular surface 18 of the bent plate 12. The clamp end of the quick push clamp 39 plays a role in fine-tuning the position of the bent plate 12, and at the same time, the bent plate 12 is pressed tightly between the clamp end of the quick push clamp 39 and the support frame 37, so as to further fix the position of the bent plate 12, and further improve the placement stability and weld quality of the bent plate 12 during the welding operation.
[0045] Therefore, the support frame 37 supports and limits the inner annular surface 17 of the bending plate 12, and the bending plate 12 is pressed tightly between the clamping end of the third quick clamp 38 and the base 1 through the third quick clamp 38, thereby fixing the bending plate 12, reducing the possibility of shaking of the bending plate 12, and improving the placement stability and welding efficiency of the bending plate 12 during welding operation.
[0046] The implementation principle of the embodiment of the present application is as follows: when it is necessary to weld the entire excavator support, firstly weld the curved ring 9, the pillar 10, the block 13 and the side bent plate 11 to the inner concave surface 5 of the frame 4, the operator sets the outer peripheral surface 6 of the frame 4 on the base 1, and makes the bottom positioning column 19 pass through the bottom positioning hole 7 of the frame 4 to realize the positioning of the frame 4, and presses the frame 4 between the clamp end of the first quick clamp 21 and the base 1 through the first quick clamp 21; the operator rotates the first fixed frame 23, places the curved ring 9 on the inner concave surface 5 of the frame 4 and the curved ring 9 contacts the groove wall of the first fixed groove, places the pillar 10 on the inner concave surface 5 of the frame 4 and the outer edge of the pillar 10 contacts the groove wall of the second positioning groove 26, and then the operator uses the welding equipment to spot weld the end faces of the curved ring 9 and the pillar 10 that contact the frame 4, and after the spot welding is completed, the operator rotates the first fixed frame 23 to reset the first fixed frame 23 to reduce interference with subsequent operations.
[0047] The block 13 is fitted on the inner concave surface 5 of the frame 4, and the second fixing frame 28 is rotated so that the block 13 is limited between the second fixing frame 28 and the side of the inner concave surface 5 to achieve the limitation of the block 13. The operator screws the fixing bolt 29 into the thread groove 14 of the block 13 to achieve the fixation of the block 13. Then the operator uses the welding equipment to spot weld the end surface of the block 13 in contact with the frame 4. After the spot welding is completed, the operator rotates the second fixing frame 28 to reset the second fixing frame 28; the operator rotates the third fixing frame 33 to place the T end 15 of the side bending plate 11 between the two limiting plates , thereby achieving the limitation of the T end 15 of the side bent plate 11, the support block 34 supports the convex end 16 of the side bent plate 11 and at the same time, fits the convex end 16 to limit the position of the side bent plate 11, thereby achieving the fixation of the side bent plate 11, and then the operator uses welding equipment to spot weld the end surface of the side bent plate 11 in contact with the frame 4. After the spot welding is completed, the operator rotates the third fixing frame 33 to reset the third fixing frame 33; finally, the welding equipment is used to weld the spot welding into a complete weld, thereby welding the curved ring 9, the pillar 10, the block 13 and the side bent plate 11 to the inner concave surface 5 of the frame 4 at the same time.
[0048] After the frame 4, the curved ring 9, the pillar 10, the block 13 and the side bending plate 11 are welded together, the welding operation is finally performed on the bending plate 12. The operator sets the outer peripheral surface 6 of the frame 4 on the base 1, and passes the side positioning column 35 through the side positioning hole 8 of the frame 4. The frame 4 is pressed tightly between the clamping end of the second quick clamp 36 and the base 1 through the second quick clamp 36, so as to achieve the positioning and fixation of the frame 4; the operator sets the bending plate 12 on the support frame 37, and presses the bending plate 12 between the clamping end of the third quick clamp 38 and the base 1 through the third quick clamp 38, and presses the bending plate 12 between the clamping end of the quick push clamp 39 and the support frame 37 with the quick push clamp 39, so as to achieve the positioning and fixation of the bending plate 12. Then the operator uses welding equipment to weld the two ends of the bending plate 12 to the contact points of the outer peripheral surface 6 of the frame 4. The frame 4, the block 13, the curved ring 9, the pillar 10 and the side bent plate 11 are fixed respectively by the fixing device 2, and the frame 4 and the bent plate 12 are fixed respectively by the clamping device 3, so that the operator can perform welding operations conveniently and the components of the excavator support are not easy to shake during the welding process, thereby improving the weld quality and production efficiency.
[0049] 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 welding fixture, characterized in that: The invention comprises a base (1), wherein a fixing device (2) is provided on the base (1), wherein the fixing device (2) comprises a first fixing unit for fixing a frame (4), a second fixing unit for fixing a curved ring (9) and a support (10) at the same time, a third fixing unit for fixing a clamping block (13), and a fourth fixing unit for fixing a side bent plate (11); the base (1) is also provided with a clamping device (3), wherein the clamping device (3) comprises a first clamping unit for fixing the frame (4) and a second clamping unit for fixing a bent plate (12); when it is necessary to weld two ends of the bent plate (12) to an outer peripheral surface (6) of the frame (4), the frame (4) is fixed by using the first clamping unit; the first fixing unit comprises a bottom positioning column (19) arranged on the base (1) and matching with a bottom positioning hole (7); the outer peripheral surface (6) of the frame (4) is mounted on the base (1) and the bottom positioning column (19) passes through the bottom positioning hole (7).
2. The welding fixture according to claim 1, characterized in that: The first fixing unit further comprises a clamping seat (20) arranged on the base (1), a first quick clamp (21) being provided on the clamping seat (20), and the frame (4) is pressed tightly between the clamping end of the first quick clamp (21) and the base (1).
3. The welding fixture according to claim 1, characterized in that: The second fixing unit comprises a first mounting seat (22) arranged on the base (1); a first fixing frame (23) is hingedly connected to the first mounting seat (22); a fixing plate (24) is provided on the first fixing frame (23); a first positioning groove (25) matching the curved ring (9) is provided on the fixing plate (24); a second positioning groove (26) matching the pillar (10) is provided on the groove wall of the first positioning groove (25); the curved ring (9) contacts the groove wall of the first positioning groove (25); and the outer edge of the pillar (10) contacts the groove wall of the second positioning groove (26).
4. The welding fixture according to claim 1, characterized in that: The third fixing unit comprises a second mounting seat (27) arranged on the base (1); a second fixing frame (28) is hingedly connected to the second mounting seat (27); a threaded hole matching the threaded groove (14) of the clamping block (13) is formed on the second fixing frame (28); a fixing bolt (29) is passed through the threaded hole; and one end of the fixing bolt (29) facing the clamping block (13) is threadedly connected to the threaded groove (14) of the clamping block (13).
5. The welding fixture according to claim 4, characterized in that: The third fixing unit further comprises an anti-slip block (30) arranged on the second fixing frame (28), and the clamping block (13) is pressed tightly between the anti-slip block (30) and the inner concave surface (5) of the frame (4).
6. The welding fixture according to claim 4, characterized in that: The fourth fixing unit comprises a third mounting seat (31) arranged on the base (1), two limit blocks (32) are arranged on the surface of the third mounting seat (31) facing the frame (4), the T end (15) of the side bending plate (11) is located between the two limit blocks (32) and is in contact with the two limit blocks (32), and the fourth fixing unit also comprises a third fixing frame (33) hinged on the second mounting seat (27), a support block (34) matching the convex end (16) of the side bending plate (11) is arranged on the third fixing frame (33), and the convex end (16) of the side bending plate (11) is mounted on the support block (34).
7. The welding fixture according to claim 1, characterized in that: The first clamping unit comprises a side positioning column (35) arranged on the base (1) and matching the side positioning hole (8); the outer peripheral surface (6) of the frame (4) is mounted on the base (1) and the side positioning column (35) passes through the side positioning hole (8).
8. The welding fixture according to claim 7, characterized in that: The first clamping unit also includes a second quick clamp (36) arranged on the base (1), and the frame (4) is pressed tightly between the clamp end of the second quick clamp (36) and the base (1).
9. The welding fixture according to claim 1, characterized in that: The second clamping unit comprises a support frame (37) arranged on the base (1) and matching the inner annular surface (17) of the bending plate (12); the inner annular surface (17) of the bending plate (12) is mounted on the support frame (37) and both ends of the bending plate (12) are in contact with the outer peripheral surface (6) of the frame (4); the second clamping unit also comprises a third quick clamp (38) arranged on the support frame (37); the bending plate (12) is pressed between the clamping end of the third quick clamp (38) and the base (1).
10. The welding fixture according to claim 9, characterized in that: The second clamping unit also includes a quick push clamp (39) arranged on the base (1), and the bent plate (12) is pressed tightly between the clamp end of the quick push clamp (39) and the support frame (37).