Welding fixture for non-standard parts of automobile parts

Abstract

The utility model relates to the technical field of automobile clamps, in particular to an automobile part non-standard part welding clamp which comprises a guide rail rack, and the top of the guide rail rack is provided with a T-shaped sliding groove in the shape of the guide rail rack. According to the device, multi-point fixing can be conducted on protrusions, holes, vertical structures, horizontal structures and inclined structures of non-standard parts through the inclined clamping device, the sleeve clamping device, the point clamping device, the side clamping device, the flat clamping device and other clamps or more kinds of clamps are replaced, and therefore welding is more stable and fixed; and the clamp mounting plate can be flexibly mounted at any position on the guide rail rack through the pair of slidable studs, so that the clamp mounting plate and the clamp on the clamp mounting plate can be more conveniently and flexibly moved and replaced to adapt to changes of welding postures and shapes of the non-standard parts, the adjustment is more flexible and convenient, and the applicability is wide.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile fixtures, in particular to a welding fixture for non-standard parts of automobile components. Background Art

[0002] Auto parts need to be welded during the processing, and welding fixtures are needed during the welding process to prevent parts from falling off and misalignment, thereby improving the welding efficiency of auto parts. When processing existing auto parts, it is often necessary to process some non-standard parts of the car. In the process of welding non-standard parts, due to the particularity of non-standard parts such as sheet metal, regular and irregular shaped parts are often encountered. Existing fixtures, such as a welding fixture for welding auto parts with application number CN202310851001.6, cannot clamp and fix thinner parts that are elastic and may deform during welding, as well as other different types of parts with special shapes that cannot be stably fixed at two points. In addition, one or more different fixtures are generally fixed on the frame, and the position and type cannot be adjusted according to the posture and shape changes of non-standard parts. Utility Model Content

[0003] The utility model aims to solve the shortcomings of the prior art that thinner parts and other parts with special shapes cannot be clamped and fixed, and the position and type cannot be adjusted according to the posture and shape changes of non-standard parts, and a non-standard welding fixture for automotive parts is proposed.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A welding fixture for non-standard parts of automobile parts is designed, including a guide rail frame, a T-shaped slide groove of the same shape as the guide rail frame is opened on the top of the guide rail frame, a plurality of pairs of clamping rings and a plurality of pairs of studs inserted in the clamping rings are slidably arranged inside the T-shaped slide groove, and the top of the clamping ring abuts the guide rail frame, a threaded hole is opened at the bottom of the stud, and a short bolt with a nut top abutting the clamping ring is threadedly connected in the threaded hole, a top plate located on the top of the guide rail frame is sleeved on the outer wall of the middle section of the stud, and both sides of the top plate are welded with clamps clamped on the guide rail frame. The triangular clamps on both sides of the frame, the upper ends of each pair of studs penetrate a fixture mounting plate and are threadedly connected to a fastening sleeve located at the top of the fixture mounting plate, and a rotating rod for facilitating the rotation of the fastening sleeve is welded to the outer wall of the fastening sleeve, a limiting slide groove is provided on the outer wall of the stud, and a limiting block is slidably provided in the limiting slide groove, the outer wall of the limiting block is fixedly connected to the top plate, and the tops of several of the fixture mounting plates are provided with one or more of a flat clamping device, a point clamping device, an oblique clamping device, a sleeve clamping device, and a side clamping device.

[0006] Preferably, the anti-slip structure comprises a friction plate and an annular friction plate, the friction plate is fixedly provided on the lower end surface of the top plate, and the annular friction plate is fixedly provided on the upper end surface of the retaining ring.

[0007] Preferably, the flat clamping device includes a mounting seat, a pressure plate, and a support plate. A mounting seat is fixedly mounted on the top of one of the clamp mounting plates and a pressure plate is fixedly disposed at the bottom of an L-shaped mounting block of the mounting seat. A cylinder is fixedly disposed on the side of another clamp mounting plate, and a support plate located below the pressure plate is fixedly disposed on the top of the telescopic rod of the cylinder.

[0008] Preferably, the point clamping device includes a mounting seat, a limit plate, and a limit column. The mounting seat is fixedly provided on the top of the clamp mounting plate, and a limit plate and a limit plate are fixedly provided on the bottom of the L-shaped mounting block of the mounting seat. A Z-shaped bracket is fixedly installed on the side of the mounting seat, and a limit column is fixedly installed on the upper end of the Z-shaped bracket. A slot is provided at the bottom of the limit plate, which is located directly above the limit column and cooperates with the limit column.

[0009] Preferably, the oblique clamping device includes a mounting seat, a lower trapezoidal block, and an upper trapezoidal block. The lower trapezoidal block and the mounting seat are fixedly mounted on the outer wall of the clamp mounting plate via an L-shaped mounting seat, and the L-shaped mounting block of the mounting seat is located directly above the lower trapezoidal block. The upper trapezoidal block is fixedly mounted on the bottom of the L-shaped mounting block of the mounting seat, and a clamping plate parallel to the inclined surface of the lower trapezoidal block is fixedly mounted on the inclined surface of the upper trapezoidal block.

[0010] Preferably, the clamping device includes a lifting cylinder, a mounting seat, a sleeve, and a top block. The lifting cylinder and the mounting seat are fixedly mounted on the outer walls of the two clamp mounting plates through L-shaped mounting seats respectively. The bottom of the L-shaped mounting block at the upper end of the mounting seat is fixedly mounted with a sleeve located directly above the lifting cylinder. A top block is provided directly below the sleeve, and the top block cooperates with the sleeve.

[0011] Preferably, the side clamping device includes a movable cylinder, a guide rail, a T-shaped mounting seat, and a clamping head. A base plate is fixedly provided on the upper end surface of one of the clamp mounting plates, and a pair of guide rails are fixedly provided on the base plate. A pair of sliders are slidably provided on the tops of the two guide rails, and the tops of the two pairs of sliders are fixedly connected to the T-shaped mounting seat. The front end surface of the vertical plate of the T-shaped mounting seat is provided with two left and right clamping heads through an opening and closing device.

[0012] Preferably, the opening and closing device includes an opening and closing cylinder, a transverse guide rail, an opening and closing plate, and a clamping plate. The front end surface of the vertical plate of the T-shaped mounting seat is fixedly provided with a pair of transverse guide rails, and the outer wall of the transverse guide rail is slidably provided with a pair of opening and closing plates, and the front end surfaces of the pair of opening and closing plates are fixedly provided with clamping plates, and the end surfaces of a pair of clamping plates close to each other are respectively fixedly connected with a clamping head, the point-breaking portion of the opening and closing plate is provided with a bolt hole located in front of the transverse guide rail, and the side surface of the clamping plate on the right side is fixedly installed with an opening and closing cylinder, the telescopic rod of the opening and closing cylinder passes through the opening and closing plate and is fixedly connected with a connecting rod, and the left end of the connecting rod is fixedly connected to the left opening and closing plate.

[0013] The utility model proposes a welding fixture for non-standard automobile parts, which has the beneficial effect that the device can not only perform multi-point fixation on the protrusions, holes, vertical structures, horizontal structures and inclined structures of non-standard parts through various fixtures such as oblique clamping devices, sleeve clamping devices, point clamping devices, side clamping devices, flat clamping devices, etc. or replace more kinds of clamps, thereby making the welding more stable and fixed, but also can flexibly install the fixture mounting plate at any position on the guide rail frame through a pair of slidable studs, can more conveniently and flexibly move and replace the fixture mounting plate and the fixtures thereon to adapt to changes in the welding posture and shape of non-standard parts, is more flexible and convenient to adjust, and has a wide range of applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of a welding fixture for non-standard parts of automobile parts proposed by the utility model;

[0015] Figure 2 This is a schematic diagram of the partial cross-section structure of a welding fixture for non-standard automobile parts proposed by the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of a side clamp device of a welding fixture for non-standard parts of automobile parts proposed by the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of a spot clamping device for a non-standard welding fixture for automotive parts proposed by the utility model;

[0018] Figure 5 The utility model is a schematic structural diagram of a flat clamping device of a welding fixture for non-standard automobile parts.

[0019] In the figure: 1. guide rail frame; 2. fixture mounting plate; 3. T-shaped slide groove; 4. triangular clamp; 5. oblique clamping device; 6. sleeve clamping device; 7. point clamping device; 8. side clamping device; 9. flat clamping device; 10. fastening sleeve; 11. stud; 12. rotating rod; 13. top plate; 14. friction plate; 15. annular friction plate; 16. snap ring; 17. short bolt; 18. limit block; 19. limit slide groove; 20. moving cylinder; 21. guide rail; 22. T-shaped mounting seat; 23. opening and closing plate; 24. clamping plate; 25. opening and closing cylinder; 26. clamping head; 27. mounting seat; 28. lifting cylinder; 29. ​​sleeve; 30. top block; 31. pressure plate; 32. lower trapezoidal block; 33. upper trapezoidal block; 34. support plate; 35. limit plate; 36, 36 limit columns. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-5 A welding fixture for non-standard parts of automobile parts, comprising a guide rail frame 1, a T-shaped slide groove 3 of the same shape as the guide rail frame 1 is provided on the top of the guide rail frame 1, a plurality of pairs of snap rings 16 and a plurality of pairs of studs 11 inserted in the snap rings 16 are slidably provided inside the T-shaped slide groove 3, and the top of the snap ring 16 abuts against the guide rail frame 1, a threaded hole is provided at the bottom of the stud 11, and a short bolt 17 with a nut top abutting against the snap ring 16 is threadedly connected in the threaded hole, a top plate 13 located at the top of the guide rail frame 1 is sleeved on the outer wall of the middle section of the stud 11, and both sides of the top plate 13 are welded with two clamps clamped on the two sides of the guide rail frame 1. The triangular clamp 4 on the side, the upper end of each pair of studs 11 passes through a fixture mounting plate 2 and is threadedly connected to a fastening sleeve 10 located on the top of the fixture mounting plate 2, and the outer wall of the fastening sleeve 10 is welded with a rotating rod 12 for facilitating the rotation of the fastening sleeve 10, the outer wall of the stud 11 is provided with a limiting slide groove 19, and a limiting block 18 is slidably provided in the limiting slide groove 19, the outer wall of the limiting block 18 is fixedly connected to the top plate 13, and the tops of the several fixture mounting plates 2 are provided with one or more of a flat clamping device 9, a point clamping device 7, an oblique clamping device 5, a sleeve clamping device 6, and a side clamping device 8.

[0022] The anti-slip structure includes a friction plate 14 and an annular friction plate 15. The friction plate 14 is fixed on the lower end surface of the top plate 13, and the annular friction plate 15 is fixed on the upper end surface of the snap ring 16. The friction plate 14 and the annular friction plate 15 increase the friction force to prevent the relative guide rail frame 1 from sliding.

[0023] The flat clamp device 9 includes a mounting seat 27, a pressing plate 31, and a supporting plate 34. The mounting seat 27 is fixedly mounted on the top of one clamp mounting plate 2, and the pressing plate 31 is fixedly mounted at the bottom of the L-shaped mounting block of the mounting seat 27. A cylinder is fixedly mounted on the side of the other clamp mounting plate 2, and a supporting plate 34 located below the pressing plate 31 is fixedly mounted on the top of the telescopic rod of the cylinder. The non-standard horizontal structure is clamped by the pressing plate 31 and the supporting plate 34.

[0024] The point clamping device 7 includes a mounting seat 27, a limiting plate 35, and a limiting column 36. The mounting seat 27 is fixedly provided on the top of the fixture mounting plate 2, and the limiting plate 35 is fixedly provided at the bottom of the L-shaped mounting block of the mounting seat 27. The limiting plate 35 and the side of the mounting seat 27 are fixedly provided with a Z-shaped bracket, and the upper end of the Z-shaped bracket is fixedly provided with a limiting column 36. The bottom of the limiting plate 35 is provided with a slot located directly above the limiting column 36 and matched with the limiting column 36. The hole structure of the non-standard part is clamped and positioned by inserting the limiting column 36 into the hole on the non-standard part and inserting the upper end of the limiting column 36 into the slot.

[0025] The oblique clamping device 5 includes a mounting seat 27, a lower trapezoidal block 32, and an upper trapezoidal block 33. The lower trapezoidal block 32 and the mounting seat 27 are fixedly mounted on the outer wall of the fixture mounting plate 2 through an L-shaped mounting seat, and the L-shaped mounting block of the mounting seat 27 is located directly above the lower trapezoidal block 32. The upper trapezoidal block 33 is fixedly mounted on the bottom of the L-shaped mounting block of the mounting seat 27, and a clamping plate parallel to the inclined surface of the lower trapezoidal block 32 is fixedly mounted on the inclined surface of the upper trapezoidal block 33. The non-standard inclined structure is clamped by the lower trapezoidal block 32 and the clamping plate parallel to the inclined surface thereof.

[0026] The clamping device 6 includes a lifting cylinder 28, a mounting seat 27, a sleeve 29, and a top block 30. The lifting cylinder 28 and the mounting seat 27 are fixedly mounted on the outer walls of the two fixture mounting plates 2 through L-shaped mounting seats, respectively. The sleeve 29 located directly above the lifting cylinder 28 is fixedly mounted at the bottom of the L-shaped mounting block at the upper end of the mounting seat 27. A top block 30 is provided directly below the sleeve 29, and the top block 30 cooperates with the sleeve 29. The lifting cylinder 28 drives the top block 30 to push the circular or other shaped protrusions on the non-standard parts into the sleeve 29 to complete the clamping and fixing of the protrusion structure.

[0027] The side clamping device 8 includes a moving cylinder 20, a guide rail 21, a T-shaped mounting seat 22, and a clamping head 26. A base plate is fixedly provided on the upper end surface of a clamp mounting plate 2, and a pair of guide rails 21 are fixedly provided on the base plate. A pair of sliders are slidably provided on the top of the two guide rails 21, and the tops of the two pairs of sliders are fixedly connected to the T-shaped mounting seat 22. The front end surface of the vertical plate of the T-shaped mounting seat 22 is provided with two left and right clamping heads 26 through an opening and closing device.

[0028] The opening and closing device includes an opening and closing cylinder 25, a transverse guide rail, an opening and closing plate 23, and a clamping plate 24. A pair of transverse guide rails are fixedly provided on the front end surface of the vertical plate of the T-shaped mounting seat 22, and a pair of opening and closing plates 23 are slidably provided on the outer wall of the transverse guide rail, and a clamping plate 24 is fixedly provided on the front end surface of the pair of opening and closing plates 23. The end surfaces of the pair of clamping plates 24 close to each other are respectively fixedly connected with a clamping head 26. The point-break of the opening and closing plate 23 is provided with a bolt hole located in front of the transverse guide rail. The side of the right clamping plate 24 is fixedly installed with an opening and closing cylinder 25. The telescopic rod of the opening and closing cylinder 25 penetrates the opening and closing plate 23 and is fixedly connected with a connecting rod, and the left end of the connecting rod is fixedly connected with the left opening and closing plate 23. The two clamping heads 26 are driven forward and backward by the mobile cylinder 20 and the two clamping heads 26 are driven to close by the opening and closing cylinder 25, so as to clamp the non-standard vertical structure left and right. By screwing the screw into the bolt hole and making it against the transverse guide rail, the left and right positioning of an opening and closing plate 23 is completed.

[0029] Working principle: The protrusions, holes, vertical structures, horizontal structures and inclined structures of non-standard parts can be fixed at multiple points through various clamps such as oblique clamping device 5, sleeve clamping device 6, point clamping device 7, side clamping device 8, flat clamping device 9, etc., or by replacing more types of clamps, so as to fix the non-standard parts more stably. When changing the welding posture of non-standard parts or replacing non-standard parts for welding, the fastening sleeve 10 can be rotated by the rotating rod 12 to make the stud 11 drop, so that the retaining ring 16 drops to contact the limit, and then the fixture mounting plate 2 is moved or removed, and the fixture mounting plate 2 and the fixture thereon are adjusted or replaced, and the stud 11 can stay at any position in the T-shaped slide groove 3, so that each pair of studs 11 can be slid to any position and the fastening sleeve 10 is reversed to drive the stud 11, and the retaining ring 16 rises and abuts against the guide rail frame 1, so that the fixture mounting plate 2 is fixed by friction, so that the fixture mounting plate 2 and the fixture thereon can be installed at any position.

[0030] The device can not only perform multi-point fixation on the protrusions, holes, vertical structures, horizontal structures and inclined structures of non-standard parts through various clamps such as the oblique clamping device 5, the sleeve clamping device 6, the point clamping device 7, the side clamping device 8, the flat clamping device 9, etc. or replace more types of clamps, thereby making the welding more stable and fixed, but also can flexibly install the clamp mounting plate 2 at any position on the guide rail frame 1 through a pair of slidable studs 11, and can more conveniently and flexibly move and replace the clamp mounting plate 2 and the clamps thereon to adapt to changes in the welding posture and shape of non-standard parts, and the adjustment is more flexible and convenient, and the applicability is wide.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A welding fixture for non-standard automobile parts, comprising a guide rail frame (1), characterized in that: The top of the guide rail frame (1) is provided with a T-shaped slide groove (3) of the same shape as the guide rail frame (1). The inside of the T-shaped slide groove (3) is slidably provided with a plurality of pairs of snap rings (16) and a plurality of pairs of studs (11) inserted into the snap rings (16). The top of the snap rings (16) abuts against the guide rail frame (1). The bottom of the studs (11) is provided with threaded holes. The threaded holes are threadedly connected with short bolts (17) whose tops abut against the snap rings (16). The outer wall of the middle section of the studs (11) is provided with a top plate (13) located at the top of the guide rail frame (1). Both sides of the top plate (13) are welded with triangular clamps (4) clamped on both sides of the guide rail frame (1). Each pair of the studs The upper end of each of the studs (11) passes through a fixture mounting plate (2) and is threadedly connected to a fastening sleeve (10) located at the top of the fixture mounting plate (2), and a rotating rod (12) is welded to the outer wall of the fastening sleeve (10) for facilitating the rotation of the fastening sleeve (10). A limiting groove (19) is provided on the outer wall of the stud (11), and a limiting block (18) is slidably provided in the limiting groove (19). The outer wall of the limiting block (18) is fixedly connected to the top plate (13). The tops of the fixture mounting plates (2) are each provided with one or more of a flat clamping device (9), a point clamping device (7), an oblique clamping device (5), a sleeve clamping device (6), and a side clamping device (8).

2. The non-standard welding fixture for automobile parts according to claim 1, characterized in that: The anti-slip structure comprises a friction plate (14) and an annular friction plate (15); the friction plate (14) is fixedly arranged on the lower end surface of the top plate (13), and the annular friction plate (15) is fixedly arranged on the upper end surface of the clamping ring (16).

3. The non-standard welding fixture for automobile parts according to claim 1, characterized in that: The flat clamp device (9) comprises a mounting seat (27), a pressure plate (31), and a support plate (34); the mounting seat (27) is fixedly mounted on the top of one of the clamp mounting plates (2), and the pressure plate (31) is fixedly mounted on the bottom of the L-shaped mounting block of the mounting seat (27); a cylinder is fixedly mounted on the side of the other clamp mounting plate (2), and the support plate (34) located below the pressure plate (31) is fixedly mounted on the top of the telescopic rod of the cylinder.

4. The non-standard welding fixture for automobile parts according to claim 1, characterized in that: The point clamping device (7) comprises a mounting seat (27), a limiting plate (35), and a limiting column (36); the mounting seat (27) is fixedly arranged on the top of the clamp mounting plate (2), and the limiting plate (35) is fixedly arranged on the bottom of the L-shaped mounting block of the mounting seat (27); the limiting plate (35); a Z-shaped bracket is fixedly arranged on the side of the mounting seat (27), and the limiting column (36) is fixedly arranged on the upper end of the Z-shaped bracket; and a slot is provided at the bottom of the limiting plate (35) and is located directly above the limiting column (36) and matches the limiting column (36).

5. The non-standard welding fixture for automobile parts according to claim 1, characterized in that: The oblique clamping device (5) comprises a mounting seat (27), a lower trapezoidal block (32), and an upper trapezoidal block (33); the lower trapezoidal block (32) and the mounting seat (27) are fixedly mounted on the outer wall of the clamp mounting plate (2) via an L-shaped mounting seat, and the L-shaped mounting block of the mounting seat (27) is located directly above the lower trapezoidal block (32); the upper trapezoidal block (33) is fixedly mounted on the bottom of the L-shaped mounting block of the mounting seat (27), and a clamping plate parallel to the inclined surface of the lower trapezoidal block (32) is fixedly mounted on the inclined surface of the upper trapezoidal block (33).

6. The non-standard welding fixture for automobile parts according to claim 1, characterized in that: The sleeve clamp device (6) comprises a lifting cylinder (28), a mounting seat (27), a sleeve (29), and a top block (30). The lifting cylinder (28) and the mounting seat (27) are fixedly mounted on the outer walls of the two clamp mounting plates (2) respectively through L-shaped mounting seats. The sleeve (29) located directly above the lifting cylinder (28) is fixedly mounted on the bottom of the L-shaped mounting block at the upper end of the mounting seat (27). The top block (30) is provided directly below the sleeve (29), and the top block (30) cooperates with the sleeve (29).

7. The non-standard welding fixture for automobile parts according to claim 1, characterized in that: The side clamping device (8) comprises a moving cylinder (20), a guide rail (21), a T-shaped mounting seat (22), and a clamping head (26). A bottom plate is fixedly provided on the upper end surface of one of the clamp mounting plates (2), and a pair of guide rails (21) are fixedly provided on the bottom plate. A pair of sliders are slidably provided on the tops of the two guide rails (21), and the tops of the two pairs of sliders are fixedly connected to the T-shaped mounting seat (22). The front end surface of the vertical plate of the T-shaped mounting seat (22) is provided with two left and right clamping heads (26) via an opening and closing device.

8. The non-standard welding fixture for automobile parts according to claim 7, characterized in that: The opening and closing device comprises an opening and closing cylinder (25), a transverse guide rail, an opening and closing plate (23), and a clamping plate (24); a pair of transverse guide rails are fixedly provided on the front end surface of the vertical plate of the T-shaped mounting seat (22); a pair of opening and closing plates (23) are slidably provided on the outer wall of the transverse guide rail; a clamping plate (24) is fixedly provided on the front end surface of the pair of opening and closing plates (23); end surfaces of the pair of clamping plates (24) close to each other are respectively fixedly connected to a clamping head (26); a point-break of the opening and closing plate (23) is provided with a bolt hole located in front of the transverse guide rail; an opening and closing cylinder (25) is fixedly installed on the side surface of the right clamping plate (24); a telescopic rod of the opening and closing cylinder (25) penetrates the opening and closing plate (23) and is fixedly connected to a connecting rod; and the left end of the connecting rod is fixedly connected to the left opening and closing plate (23).

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