A flip-up welding fixture

Abstract

This utility model discloses a flip-up welding fixture, including a fixed frame, a flipping frame, and at least two clamping modules. The flipping frame is fixedly connected to a rotating shaft, which is rotatably connected to the fixed frame. The clamping modules are mounted on the flipping frame, with at least two clamping modules evenly distributed around the rotating shaft. The flipping frame has at least two positioning holes, also evenly distributed around the rotating shaft. The fixed frame is slidably connected to positioning pins that mate with the positioning holes. The beneficial effects of this utility model are: it greatly reduces the waiting time for the welding robot to clamp; after each welding operation, it can quickly switch to a new workpiece by rotating the flipping frame, thereby improving the utilization efficiency of the welding robot, increasing production efficiency, and achieving the advantage of being able to add new workpieces during the welding process.

Description

Technical Field

[0001] This utility model relates to the technical field of welding fixtures, and specifically to a flip-up welding fixture. Background Technology

[0002] Welding fixtures are flexible clamps used for fixing, clamping, and positioning welding workpieces. During welding operations, welding robots require these fixtures to position and clamp the workpiece. In traditional welding processes, the workpiece is placed on the welding fixture, clamped, and then the welding robot welds it. After welding is complete, a new workpiece is replaced on the welding fixture, and the robot welds the new workpiece again. Therefore, after each welding cycle, the welding robot needs to pause for a considerable period while a worker replaces the workpiece on the fixture before welding can continue, resulting in low efficiency and low production productivity. Thus, existing welding fixtures suffer from the technical problem of not being able to add new workpieces during the welding process. Utility Model Content

[0003] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a flip-over welding fixture, which includes a fixed frame, a flip frame and at least two clamping modules. The flip-over welding fixture has the advantage of being able to add new workpieces during the welding process.

[0004] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows:

[0005] A flip-up welding fixture includes a fixed frame, a flip frame, and at least two clamping modules. The flip frame is fixedly connected to a rotating shaft, which is rotatably connected to the fixed frame. The clamping modules are mounted on the flip frame, and at least two clamping modules are evenly distributed around the rotating shaft. The flip frame has at least two positioning holes, which are evenly distributed around the rotating shaft. The fixed frame is slidably connected to positioning pins that mate with the positioning holes.

[0006] This setup allows the welding robot to perform welding while a new workpiece is positioned on the lower clamping module, which then clamps and positions it. Once the workpiece on the upper clamping module is welded, a rotating flipper moves the new workpiece upwards while the welded workpiece is flipped downwards, allowing the part to be placed on the new workpiece for welding. This significantly reduces the welding robot's waiting time for clamping, and allows for rapid switching to a new workpiece after each welding cycle. This improves the robot's efficiency, increases production capacity, and allows for the addition of new workpieces during the welding process.

[0007] Preferably, the clamping module includes a connecting seat, a positioning block, and a clamping plate. The connecting seat is fixedly connected to the flipping frame, the positioning block is fixedly connected to the connecting seat, the positioning block has a longitudinal positioning surface at one end near the clamping plate, and the clamping plate has a first fixing member that is detachably connected to the flipping frame.

[0008] This setup enables the positioning and clamping of the workpiece.

[0009] Preferably, the fixing element is a first screw that passes through the clamping plate and is threadedly connected to the flipping frame.

[0010] This configuration allows the clamping plate to be preloaded via the first fixing element.

[0011] Preferably, the positioning block is provided with a transverse positioning plate, and the side of the transverse positioning plate away from the positioning block is provided with a transverse positioning surface, which is perpendicular to the longitudinal positioning surface.

[0012] This setting improves the positioning accuracy of the workpiece.

[0013] Preferably, the positioning block is provided with a second fixing member that is detachably connected to the transverse positioning plate.

[0014] This setting improves applicability.

[0015] Preferably, the second fixing member is a second screw, which passes through the positioning block and is threadedly connected to the transverse positioning plate.

[0016] With this setup, the second fixing component can be removed and the horizontal positioning plate replaced by tightening and loosening the rotating frame.

[0017] Preferably, each clamping module is provided with multiple positioning blocks, and the clamping plate is provided with a flexible pad on the side near the positioning blocks.

[0018] This setting improves the stability of the workpiece when it is clamped.

[0019] Preferably, the clamping module includes a support bar and a vertical positioning plate. The support bar is fixedly connected to the flipping frame. The lower surface of the vertical positioning plate is provided with a slot that cooperates with the support bar. The support bar is engaged with the vertical positioning plate. The upper surface of the vertical positioning plate is provided with a vertical positioning surface.

[0020] This setup enables vertical positioning of the workpiece, improving its positioning accuracy.

[0021] Preferably, there are two flipping frames, and each clamping module has two support bars. The two flipping frames and the two support bars correspond one-to-one, and the two support bars are located on both sides of the vertical positioning plate.

[0022] This design improves the stability of the vertical positioning plate.

[0023] Preferably, the vertical positioning plate is fixedly connected to a handle.

[0024] This design facilitates the installation and removal of the vertical fixing plate.

[0025] Compared with the prior art, this utility model has achieved beneficial technical effects:

[0026] After the workpiece is clamped and positioned on one of the clamping modules, the clamping module with the workpiece clamped is flipped upwards by a rotating flipping frame. Then, the part to be welded to the workpiece is placed on the workpiece and welded by the welding robot. Simultaneously, a new workpiece is placed on the lower clamping module, and the lower clamping module clamps and positions the new workpiece. Once the workpiece on the upper clamping module is welded, the rotating flipping frame flips the new workpiece upwards and the welded workpiece downwards, allowing the part to be placed on the new workpiece for welding. The welded workpiece can be removed from below and replaced with another workpiece. This significantly reduces the welding robot's waiting time for clamping, and after each welding operation, the rotating flipping frame can quickly switch to a new workpiece, thereby improving the efficiency of the welding robot, increasing production efficiency, and achieving the advantage of being able to add new workpieces during the welding process. Attached Figure Description

[0027] Figure 1 This is a structural schematic diagram of a flip-up welding fixture according to an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the structure of a flip-type welding fixture for clamping a workpiece in an embodiment of this utility model;

[0029] Figure 3 This is a structural schematic diagram of the longitudinal positioning surface, the transverse positioning surface, and the vertical positioning surface in an embodiment of this utility model.

[0030] The technical features referred to by the various reference numerals in the accompanying drawings are as follows:

[0031] 11. Fixing frame; 12. Tilting frame; 13. Rotating shaft; 14. Positioning hole; 15. Positioning pin; 20. Clamping module; 21. Connecting seat; 22. Positioning block; 23. Longitudinal positioning surface; 24. Transverse positioning plate; 25. Transverse positioning surface; 26. Second fixing component; 31. Clamping plate; 32. First fixing component; 33. Flexible pad; 41. Support bar; 42. Vertical positioning plate; 43. Slot; 44. Vertical positioning surface; 45. Handle; 51. Workpiece. Detailed Implementation

[0032] To make the objectives, technical solutions and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments. However, the scope of protection of this utility model is not limited to the specific embodiments described below.

[0033] refer to Figure 1-3 A flip-up welding fixture includes a fixed frame 11, a flip frame 12, and two clamping modules 20. The flip frame 12 is fixedly connected to a rotating shaft 13, which is rotatably connected to the fixed frame 11. The clamping modules 20 are mounted on the flip frame 12, and the two clamping modules 20 are evenly distributed around the rotating shaft 13. The flip frame 12 has two positioning holes 14, which are evenly distributed around the rotating shaft 13. The fixed frame 11 is slidably connected to positioning pins 15 that mate with the positioning holes 14. The clamping modules 20 are used to clamp and position workpieces 51.

[0034] The clamping module 20 includes a connecting seat 21, a positioning block 22, a clamping plate 31, a support bar 41, and a vertical positioning plate 42. The connecting seat 21 is fixedly connected to the flipping frame 12, and the positioning block 22 is fixedly connected to the connecting seat 21. The end of the positioning block 22 near the clamping plate 31 has a longitudinal positioning surface 23. The clamping plate 31 has a first fixing member 32 that is detachably connected to the flipping frame 12. The fixing member is a first screw that passes through the clamping plate 31 and is threadedly connected to the flipping frame 12. Tightening the first screw provides a preload force to the clamping plate 31 through the first fixing member 32. Each clamping module 20 has multiple positioning blocks 22, and a flexible pad 33 is provided on the side of the clamping plate 31 near the positioning block 22. The clamping plate 31 presses down on the workpiece 51 through the flexible pad 33, balancing the force on the workpiece 51 and improving the stability of the workpiece 51 when clamped.

[0035] The positioning block 22 is provided with a transverse positioning plate 24. A transverse positioning surface 25 is provided on the side of the transverse positioning plate 24 away from the positioning block 22, and the transverse positioning surface 25 is perpendicular to the longitudinal positioning surface 23. By having the transverse positioning surface 25 fit against the workpiece 51, the workpiece 51 can be positioned transversely, improving the positioning accuracy of the workpiece 51. The positioning block 22 is provided with a second fixing member 26 detachably connected to the transverse positioning plate 24. The second fixing member 26 is a second screw, which passes through the positioning block 22 and is threadedly connected to the transverse positioning plate 24. By rotating the second screw, tightening and loosening the second screw on the transverse positioning plate 24, the second fixing member 26 can be removed and the transverse positioning plate 24 replaced, thus enabling the replacement of the transverse positioning plate 24.

[0036] The support bar 41 is fixedly connected to the flipping frame 12. The lower surface of the vertical positioning plate 42 is provided with a slot 43 that mates with the support bar 41, and the support bar 41 is engaged with the vertical positioning plate 42. The upper surface of the vertical positioning plate 42 is provided with a vertical positioning surface 44. There are two flipping frames 12 in total, and each clamping module 20 is provided with two support bars 41. The two flipping frames 12 and the two support bars 41 correspond one-to-one, and the two support bars 41 are located on both sides of the vertical positioning plate 42. The two support bars 41 provide support force to both ends of the vertical positioning plate 42, thereby improving the stability of the vertical positioning plate 42. The vertical positioning plate 42 is fixedly connected with a handle 45, which facilitates the installation and removal of the vertical positioning plate.

[0037] This embodiment has the following advantages:

[0038] After the workpiece 51 is clamped and positioned on one of the clamping modules 20, the clamping module 20 with the workpiece 51 clamped is flipped upwards by rotating the flipping frame 12. Then, the parts to be welded to the workpiece 51 are placed on the workpiece 51 and welded by the welding robot. At the same time, a new workpiece 51 is set on the lower clamping module 20, and the lower clamping module 20 clamps and positions the new workpiece 51. When the workpiece 51 on the upper clamping module 20 is welded, the flipping frame 12 is rotated 180°, so that the new workpiece 51 is flipped upwards and the welded workpiece 51 is flipped downwards. The parts can then be placed on the new workpiece 51 for welding, and the welded workpiece 51 can be removed from below and replaced with another workpiece 51. This greatly reduces the waiting time for the welding robot to clamp. After each welding operation, the robot can quickly switch to a new workpiece 51 by rotating the flipping frame 12, thereby improving the utilization efficiency of the welding robot, increasing production efficiency, and achieving the advantage of being able to add new workpieces 51 during the welding process.

[0039] The longitudinal positioning surface 23 is attached to the workpiece 51 to position the workpiece 51, thus enabling the workpiece 51 to be positioned longitudinally. After the workpiece 51 is attached to the longitudinal positioning surface 23, the clamping plate 31 is fixed to the flipping frame 12 by the first fixing member 32, and the clamping plate 31 presses the workpiece 51 onto the longitudinal positioning surface 23, thereby clamping the workpiece 51.

[0040] When the transverse positioning plate 24 is damaged or has weld slag adhering to it and cannot be removed, the second fixing member 26 can be removed and a new transverse positioning plate 24 can be replaced, facilitating the replacement of the transverse positioning plate 24. When it is necessary to process workpieces 51 of different sizes, the second fixing member 26 can be removed and a transverse positioning plate 24 of different thicknesses can be replaced, thereby adapting to workpieces 51 of different sizes and improving applicability.

[0041] During the process of placing the workpiece 51 on the clamping module 20 below, the vertical positioning plate 42 is first set onto the support bar 41, so that the support bar 41 is engaged in the slot 43 and the support bar 41 is engaged with the support plate, thereby providing support force to the support plate through the support bar 41. This allows the vertical positioning surface 44 to fit against the workpiece 51, enabling vertical positioning of the workpiece 51 and improving the positioning accuracy of the workpiece 51. After the clamping plate 31 clamps the workpiece 51, the vertical positioning plate 42 is removed to prevent it from obstructing the welding robot during welding of the workpiece 51.

[0042] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on the utility model.

Claims

1. A reversible welding fixture, characterized by: The device includes a fixed frame (11), a flipping frame (12), and at least two clamping modules. The flipping frame (12) is fixedly connected to a rotating shaft (13), which is rotatably connected to the fixed frame (11). The clamping modules are mounted on the flipping frame (12), and at least two clamping modules are evenly distributed around the rotating shaft (13). The flipping frame (12) is provided with at least two positioning holes (14), which are evenly distributed around the rotating shaft (13). The fixed frame (11) is slidably connected to a positioning pin (15) that cooperates with the positioning hole (14).

2. The reversible welding fixture of claim 1, wherein: The clamping module includes a connecting seat (21), a positioning block (22), and a clamping plate (31). The connecting seat (21) is fixedly connected to the flipping frame (12), and the positioning block (22) is fixedly connected to the connecting seat (21). The positioning block (22) has a longitudinal positioning surface (23) at one end near the clamping plate (31), and the clamping plate (31) has a first fixing member (32) that is detachably connected to the flipping frame (12).

3. The reversible welding fixture of claim 2, wherein: The fastener is a first screw that passes through the clamping plate (31) and is threadedly connected to the flipping frame (12).

4. The reversible welding fixture of claim 2, wherein: The positioning block (22) is provided with a transverse positioning plate (24), and the side of the transverse positioning plate (24) away from the positioning block (22) is provided with a transverse positioning surface (25), which is perpendicular to the longitudinal positioning surface (23).

5. The reversible welding fixture of claim 4, wherein: The positioning block (22) is provided with a second fixing member (26) that is detachably connected to the transverse positioning plate (24).

6. The reversible welding fixture of claim 5, wherein: The second fastener (26) is a second screw, which passes through the positioning block (22) and is threadedly connected to the transverse positioning plate (24).

7. The reversible welding fixture of claim 2, wherein: Each clamping module is provided with multiple positioning blocks (22), and the clamping plate (31) is provided with a flexible pad (33) on the side near the positioning block (22).

8. The reversible welding fixture of claim 1, wherein: The clamping module includes a support bar (41) and a vertical positioning plate (42). The support bar (41) is fixedly connected to the flipping frame (12). The lower surface of the vertical positioning plate (42) is provided with a slot (43) that cooperates with the support bar (41). The support bar (41) is engaged with the vertical positioning plate (42). The upper surface of the vertical positioning plate (42) is provided with a vertical positioning surface (44).

9. The reversible welding fixture of claim 8, wherein: Each clamping module is provided with two support bars (41), and there are two flipping frames (12). The two flipping frames (12) and the two support bars (41) correspond one-to-one. The two support bars (41) are located on both sides of the vertical positioning plate (42).

10. The reversible welding fixture of claim 8, wherein: The vertical positioning plate (42) is fixedly connected to a handle (45).

Images