Longeron welding fixture

Abstract

The utility model discloses a kind of stringer welding jigs, including pedestal, the middle part of pedestal is equipped with positioning assembly one, the both sides of pedestal are equipped with several symmetrically arranged clamping assembly and positioning assembly two, 2 positioning assembly two symmetrically arranged in the both sides of positioning assembly one, positioning assembly one includes positioning base one, positioning base one is installed on pedestal, the top of positioning base one is installed cylinder one and 2 guide rails one, 2 guide rails one are respectively installed slider one, sliding bottom plate one is installed on 2 slider one, the both sides of 2 slider one are respectively installed with positioning pin one mounting bracket, positioning pin one is installed in the top of positioning pin one mounting bracket, the middle part of the upper end of sliding bottom plate one is installed with connecting block one, connecting block one is hinged with the output end of cylinder one.The utility model can simultaneously weld left and right stringer, can be quickly positioned when positioning, improve welding efficiency.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts welding technology, specifically to a longitudinal beam welding fixture. Background Technology

[0002] In automobile production, longitudinal beams need to be welded. For passenger cars, the longitudinal beams are divided into left and right longitudinal beams before welding. During welding, the left longitudinal beam is welded first, and then the right longitudinal beam is welded. However, for some models, due to high sales volume, if traditional fixtures are used, the left and right longitudinal beams need to be welded separately, which results in low welding efficiency. Moreover, the positioning part of the fixture is achieved by rotation, which leads to low positioning efficiency. Utility Model Content

[0003] This utility model provides a longitudinal beam welding fixture that can simultaneously weld longitudinal beams on both the left and right sides, and can quickly position the beams during positioning, thereby improving welding efficiency.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] The longitudinal beam welding fixture includes a base. A positioning component one is installed in the middle of the base. Several symmetrically arranged clamping components and positioning components two are installed on both sides of the base. Two positioning components two are symmetrically arranged on both sides of the positioning component one. Specifically:

[0006] The positioning component includes a positioning base, which is mounted on a base. A cylinder and two guide rails are mounted on the top of the positioning base. Slider 1 is mounted on each of the two guide rails. A sliding base plate is mounted on the two sliders. Positioning pin mounting brackets are mounted on both sides of the two sliders. Positioning pin 1 is mounted on the top of the positioning pin mounting bracket. A connecting block is mounted at the middle of the upper end of the sliding base plate. The connecting block is hinged to the output end of the cylinder.

[0007] Preferably, the connecting block one is T-shaped, and a double joint joint is installed on the top of the connecting block one, which is connected to the output end of the cylinder one.

[0008] Preferably, the mounting bracket for the positioning pin includes a first connecting plate, a second connecting plate, a third connecting plate, a fourth connecting plate, and a fifth connecting plate connected in sequence. The first connecting plate is mounted on the first sliding base plate, and the first positioning pin is mounted on the fifth connecting plate.

[0009] Preferably, the positioning base includes a base plate, a support plate, and a top plate. The support plate is mounted on the base plate, and the top plate is mounted on the support plate. The top plate has clearance holes. A rotary cylinder mounting base is installed on the top of the base. The rotary cylinder is mounted on the rotary cylinder mounting base. A limit rod mounting block is installed at the output end of the rotary cylinder. Several limit rods are installed at the limit rod mounting block. The limit rods face the sliding base plate and the limit rod mounting block is located at the clearance holes.

[0010] Preferably, buffer blocks are installed on both sides of the sliding base plate, and the buffer blocks are directly opposite the limiting rod. A limiting rod fixing block is installed on the other side of the limiting rod mounting block, and the limiting rod fixing block is installed on the top plate of the base plate.

[0011] Preferably, two L-shaped plates are installed on the top plate of the base, the L-shaped plates are located on both sides of the clearance hole, the top of the L-shaped plates is equipped with a cylinder mounting plate, and the bottom of the cylinder is installed on the cylinder mounting plate.

[0012] Preferably, the positioning component two includes a positioning base plate two, a positioning pin two mounting plate is installed on one side of the top of the positioning base plate two, the positioning pin two is installed at the end of the positioning pin two mounting plate, a guide rail two is installed on the other side of the positioning base plate two, the guide rail two is slidably connected to the slider two, a movable plate is installed at the two slider two, a connecting block two is installed at the bottom of the movable plate, a connecting frame is installed at the top of the movable plate, a positioning pin three is installed at the connecting frame, the positioning pin two and the positioning pin three are both vertically arranged, the connecting block two is hinged to the double joint joint, the double joint joint is connected to the output end of the cylinder two, the cylinder two is installed on the cylinder two mounting frame, and the cylinder two mounting frame is installed on the movable plate.

[0013] Preferably, the cylinder two mounting bracket includes two L-shaped blocks, on which cylinder two mounting plates are mounted, and cylinder two is mounted at the cylinder two mounting plates.

[0014] Preferably, limit block one is installed on both sides of the top of the movable plate, and limit block two mounting blocks are installed on both sides of the top of the positioning base plate two. Limit block two is installed at the mounting block of limit block two, and limit block one corresponds to limit block two.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. Higher positioning accuracy

[0017] The positioning component 1 achieves linear movement positioning through the cooperation of guide rail 1 and slider 1, replacing the traditional rotary positioning method and reducing positioning deviation.

[0018] Positioning component two adopts a secondary positioning structure of "preliminary positioning with positioning pin two + precise positioning with positioning pin three" to further improve the accuracy of longitudinal beam positioning.

[0019] 2. High versatility and adaptability

[0020] The mounting bracket for the positioning pin is composed of multiple connecting plates connected in sequence, which can flexibly adjust the installation position of the positioning pin to adapt to the welding requirements of longitudinal beams of different sizes and specifications.

[0021] The symmetrical structural design is adaptable to general welding scenarios for both left and right longitudinal beams, eliminating the need for separate fixture adjustments for each side of the longitudinal beam.

[0022] 3. Good welding stability and component protection

[0023] The buffer blocks on both sides of the sliding base plate can alleviate the clamping impact of the limit rod, prevent parts from being damaged by collision, and extend the service life of the fixture.

[0024] The double limiting action of the limiting rod and the limiting rod fixing block, as well as the double limiting action of the limiting block one and the limiting block two, prevents the longitudinal beam or fixture components from shaking during the welding process, thus ensuring stable welding quality.

[0025] 4. Excellent ease of operation and adaptability to automation

[0026] The application of double joints makes the connection between the cylinder and the sliding parts more flexible, reduces mechanical jamming during the drive process, and lowers the failure rate.

[0027] The cylinder-driven automated design eliminates the need for manual positioning adjustments, reducing human intervention, lowering labor intensity, and adapting to the needs of automated production lines. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of an embodiment of the present utility model.

[0029] Figure 2 This is a partial schematic diagram of an embodiment of the present utility model.

[0030] Figure 3 This is a schematic diagram of a positioning component according to an embodiment of the present utility model.

[0031] Figure 4 This is a schematic diagram of the positioning component of an embodiment of the present invention from another perspective.

[0032] Figure 5 This is a schematic diagram of a positioning base according to an embodiment of the present utility model.

[0033] Figure 6 This is a schematic diagram of the second positioning component in an embodiment of this utility model.

[0034] Figure 7 This is a schematic diagram of the positioning component two from another perspective in an embodiment of this utility model. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] As shown in the figure, this utility model discloses a longitudinal beam welding fixture, including a base 1. A positioning component 2 is installed in the middle of the base 1. Several clamping components 3 and positioning components 4 are symmetrically arranged on both sides of the base 1. Two positioning components 4 are symmetrically arranged on both sides of the positioning component 2.

[0037] The positioning component 2 includes a positioning base 5, which is mounted on a base 1. A cylinder 6 and two guide rails 7 are mounted on the top of the positioning base 5. Slider 8 is mounted on each of the two guide rails 7. A sliding base plate 9 is mounted on the two sliders 8. Positioning pin mounting brackets 10 are mounted on both sides of the two sliders 8. Positioning pins 11 are mounted on the top of the positioning pin mounting brackets 10. A connecting block 12 is mounted at the middle of the upper end of the sliding base plate 9. The connecting block 12 is hinged to the output end of the cylinder 6.

[0038] During positioning, cylinder 6 operates, pushing two sliding base plates 9 to move. The sliding base plates 9 then move two positioning pin mounting brackets 10, which in turn simultaneously move positioning pins 11, thus achieving positioning. This invention can simultaneously position two longitudinal beams, and during positioning, there is no need for flipping; instead, the positioning pins 11 move linearly, ensuring positioning efficiency and convenience without requiring a large longitudinal space.

[0039] In one embodiment of this utility model, the connecting block 12 is T-shaped, and a double joint connector 13 is installed on the top of the connecting block 12. The double joint connector 13 is connected to the output end of the cylinder 6.

[0040] The double articulated joint 13 is used for hinged connection, which facilitates the driving of the sliding base plate 9.

[0041] In one embodiment of this utility model, the positioning pin mounting bracket 10 includes a connecting plate 101, a connecting plate 102, a connecting plate 103, a connecting plate 104, and a connecting plate 105 connected in sequence. The connecting plate 101 is mounted on the sliding base plate 9, and the positioning pin 11 is mounted on the connecting plate 105. The structure of the positioning pin mounting bracket 10 facilitates replacement and adjustment of the position of the positioning pin 11, and is suitable for welding longitudinal beams of different sizes.

[0042] In one embodiment of this utility model, the positioning base 5 includes a base plate 51, a support plate 52, and a top plate 53. The support plate 52 is mounted on the base plate 51, and the top plate 53 is mounted on the support plate 52. The top plate 53 is provided with a clearance hole 531. A rotary cylinder mounting base 14 is installed on the top of the base 1. A rotary cylinder 15 is mounted on the rotary cylinder mounting base 14. A limit rod mounting block 16 is installed at the output end of the rotary cylinder 15. Several limit rods 17 are installed at the limit rod mounting block 16. The limit rods 17 face the sliding base plate 9, and the limit rod mounting block 16 is located at the clearance hole 531.

[0043] The limit rod 17 is designed to clamp the sliding base plate 9 after the positioning pin moves into place, thus preventing the sliding base plate 9 from shaking or moving.

[0044] In one embodiment of this utility model, buffer blocks 18 are installed on both sides of the sliding base plate 9, and the buffer blocks 18 are directly opposite the limiting rod 17. A limiting rod fixing block 19 is installed on the other side of the limiting rod mounting block, and the limiting rod fixing block 19 is installed on the top plate 53 of the base.

[0045] The buffer block 18 serves to protect the sliding base plate 9 and prevent the limit rod 17 from damaging the sliding base plate 9.

[0046] In one embodiment of this utility model, two L-shaped plates 20 are installed on the base top plate 53. The L-shaped plates 20 are located on both sides of the clearance hole 531. A cylinder mounting plate 21 is installed on the top of the L-shaped plates 20, and the bottom of the cylinder 6 is installed on the cylinder mounting plate 21. The clearance hole 531 allows the limiting rod 17 to move, ensuring that the limiting rod 17 acts at the middle position on one side of the sliding base plate 9.

[0047] In one embodiment of this utility model, the positioning component 24 includes a positioning base plate 22. A positioning pin mounting plate 23 is installed on one side of the top of the positioning base plate 22. A positioning pin 24 is installed at the end of the positioning pin mounting plate 23. A guide rail 25 is installed on the other side of the positioning base plate 22. The guide rail 25 is slidably connected to the slider 26. A moving plate 27 is installed at the two sliders 26. A connecting block 28 is installed at the bottom of the moving plate 27. A connecting frame 29 is installed at the top of the moving plate 27. A positioning pin 30 is installed at the connecting frame 29. The positioning pins 24 and 30 are both vertically arranged. The connecting block 28 is hinged to the double joint joint 13. The double joint joint 13 is connected to the output end of the cylinder 2 31. The cylinder 2 31 is installed on the cylinder 2 mounting frame. The cylinder 2 mounting frame is installed on the moving plate 27.

[0048] Positioning component 24, with positioning pin 24, performs initial positioning when the longitudinal beam is initially placed. Then, cylinder 2 31 operates, driving the moving plate 27 to move. The moving plate 27 drives the connecting frame 29 to move, and the connecting frame 29 drives positioning pin 30 to achieve vertical movement. After positioning pin 30 has moved and achieved positioning, positioning component 2 operates again to achieve a second positioning.

[0049] In one embodiment of this utility model, the cylinder two mounting bracket includes two L-shaped blocks 32, and a cylinder two mounting plate 33 is mounted on the two L-shaped blocks 32. The cylinder two 31 is mounted on the cylinder two mounting plate 33.

[0050] In one embodiment of this utility model, limit blocks 1 34 are installed on both sides of the top of the movable plate 27, and limit block 2 mounting blocks 35 are installed on both sides of the top of the positioning base plate 22. Limit block 2 36 is installed at the limit block 2 mounting blocks 35, and limit block 1 corresponds to limit block 2.

[0051] The combination of limit block 1 34 and limit block 2 35 achieves the limiting function. The contact point between limit block 1 34 and limit block 2 35 is a concave-convex surface contact.

[0052] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of this utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A longitudinal beam welding fixture, characterized in that: The system includes a base, with a positioning component one installed in the middle of the base. Several symmetrically arranged clamping components and positioning components two are installed on both sides of the base. Two positioning components two are symmetrically arranged on either side of the positioning component one. Specifically: The positioning component includes a positioning base, which is mounted on a base. A cylinder and two guide rails are mounted on the top of the positioning base. Slider 1 is mounted on each of the two guide rails. A sliding base plate is mounted on the two sliders. Positioning pin mounting brackets are mounted on both sides of the two sliders. Positioning pin 1 is mounted on the top of the positioning pin mounting bracket. A connecting block is mounted at the middle of the upper end of the sliding base plate. The connecting block is hinged to the output end of the cylinder.

2. The longitudinal beam welding fixture according to claim 1, characterized in that: Connecting block one is T-shaped, and a double joint joint is installed on the top of connecting block one. The double joint joint is connected to the output end of cylinder one.

3. The longitudinal beam welding fixture according to claim 1, characterized in that: The mounting bracket for the positioning pin includes connecting plate 1, connecting plate 2, connecting plate 3, connecting plate 4 and connecting plate 5 connected in sequence. Connecting plate 1 is mounted on sliding base plate 1, and positioning pin 1 is mounted on connecting plate 5.

4. The longitudinal beam welding fixture according to claim 1, characterized in that: The positioning base includes a base plate, a support plate, and a top plate. The support plate is mounted on the base plate, and the top plate is mounted on the support plate. The top plate has clearance holes. A rotary cylinder mounting base is installed on the top of the base. The rotary cylinder is mounted on the rotary cylinder mounting base. A limit rod mounting block is installed at the output end of the rotary cylinder. Several limit rods are installed at the limit rod mounting block. The limit rods face the sliding base plate and the limit rod mounting block is located at the clearance holes.

5. The longitudinal beam welding fixture according to claim 4, characterized in that: Both sides of the sliding base plate are equipped with buffer blocks, which are directly opposite the limit rod. On the other side of the limit rod mounting block, a limit rod fixing block is installed, which is mounted on the top plate of the base plate.

6. The longitudinal beam welding fixture according to claim 4, characterized in that: Two L-shaped plates are installed on the top plate of the base. The L-shaped plates are located on both sides of the clearance hole. A cylinder mounting plate is installed on the top of the L-shaped plates, and the bottom of the cylinder is installed on the cylinder mounting plate.

7. The longitudinal beam welding fixture according to claim 1, characterized in that: Positioning component two includes positioning base plate two. A positioning pin two mounting plate is installed on one side of the top of positioning base plate two. Positioning pin two is installed at the end of the positioning pin two mounting plate. A guide rail two is installed on the other side of positioning base plate two. The guide rail two is slidably connected to slider two. Moving plates are installed at the two slider two. Connecting blocks two are installed at the bottom of the moving plates. Connecting frames are installed at the top of the moving plates. Positioning pin three is installed at the connecting frames. Positioning pin two and positioning pin three are both vertically set. Connecting blocks two are hinged to double joint joints. Double joint joints are connected to the output end of cylinder two. Cylinder two is installed on cylinder two mounting frames. Cylinder two mounting frames are installed on moving plates.

8. The longitudinal beam welding fixture according to claim 7, characterized in that: The cylinder two mounting bracket includes two L-shaped blocks, on which cylinder two mounting plates are mounted, and cylinder two is mounted on the cylinder two mounting plates.

9. The longitudinal beam welding fixture according to claim 7, characterized in that: Limiting blocks 1 are installed on both sides of the top of the movable plate, and mounting blocks for limiting blocks 2 are installed on both sides of the top of the positioning base plate 2. Limiting blocks 2 are installed at the mounting blocks for limiting blocks 2, and limiting blocks 1 and limiting blocks 2 correspond to each other.

Images