A welding tool for an automobile axle housing

Abstract

The utility model relates to bridge housing processing technical field, especially a kind of welding tool of automobile axle housing, including bottom plate, sliding frame, carousel, clamping assembly and drive mechanism. Welding mechanism is set on bottom plate, and drive assembly A that drives welding mechanism to move is set on bottom plate;Two groups of sliding frame are slidably arranged on bottom plate, and drive assembly B that drives two sides sliding frame to be synchronously close is set on bottom plate, support plate with round hole is set on sliding frame, and inlet is set on support plate and is communicated with round hole;Carousel is located in round hole, T-shaped groove is set on carousel, and the vertical portion of T-shaped groove is communicated with inlet, and drive assembly C that drives carousel to rotate around the axis of round hole is set on support plate;Two groups of clamping assembly are respectively set in the horizontal straight portion both ends of T-shaped groove and are slidably connected with its inner wall;Drive mechanism sets drive clamping assembly on two sides and synchronously close or away from each other. The utility model can be applicable to the welding processing of different sizes of bridge housing, and structure is relatively simple, and it is convenient to operate.

Description

Technical Field

[0001] This utility model relates to the field of axle housing processing technology, and in particular to a welding fixture for automotive axle housings. Background Technology

[0002] The stamped and welded axle housing uses steel plate as raw material, which is stamped and formed into half-shells. The two half-shells are then welded together, and finally the axle housing rear cover, reinforcing ring, shaft head and spring support are welded on to form an integral axle housing.

[0003] Chinese Patent CN115255797B discloses a welding fixture for an automotive axle housing, including a mounting plate, a support mechanism, a clamping mechanism, and a flipping mechanism mounted on the mounting plate. The support mechanism includes a support block and a drive assembly for raising and lowering the support block, with the axle housing resting on the support block. The clamping mechanism includes two clamping plates on both sides of the axle housing, connected to a linkage assembly. When the support block is in a low position, the two clamping plates work together to clamp the axle housing. When the support block rises, the support block, through the linkage assembly, drives the clamping plates to release the axle housing. The flipping mechanism is used to flip the axle housing 180 degrees; this device automatically flips the axle housing via mechanical drive.

[0004] However, the device still has shortcomings: the overall structure of the device is complex and there are many processes. For bridge shells with different diameters at both ends of the horizontal tube, their central axes will be different after they fall into the placement groove, while the height of the mounting rod remains unchanged, making it difficult for the mounting rod to be inserted into the horizontal tube exactly coaxially. Therefore, the device can only automatically clamp, fix and flip specific bridge shells. Utility Model Content

[0005] The purpose of this utility model is to address the problems existing in the background technology by proposing a welding fixture for automobile axle housings.

[0006] The technical solution of this utility model is: a welding fixture for an automobile axle housing, including a base plate, a welding mechanism slidably disposed on the base plate, and a drive component A for driving the welding mechanism to move on the base plate;

[0007] The slides are symmetrical about the center of the lifting mechanism and slidably mounted on the base plate. The base plate is equipped with a drive assembly B that drives the two slides to move closer or further away synchronously. The slides are equipped with a support plate with a round hole, and the support plate is equipped with a feed port that communicates with the round hole.

[0008] A turntable is located inside a circular hole and is coaxially connected to its inner wall. A T-slot is provided on the turntable, and the vertical part of the T-slot is connected to the feed port. A drive assembly C for driving the turntable to rotate around the axis of the circular hole is provided on the support plate.

[0009] Clamping components: Two sets of clamping components are respectively set at both ends of the horizontal and vertical part of the T-shaped groove and slidably connected to its inner wall;

[0010] And a drive mechanism, which is set on the turntable and drives the clamping components on both sides to move closer or further away synchronously.

[0011] Preferably, the welding mechanism includes a multi-axis welding robot and a base. The fixed part of the multi-axis welding robot is connected to the base, the base is slidably connected to the bottom plate, the bottom plate is provided with a guide rail, the base is slidably connected to the guide rail, and the carriage is slidably connected to the guide rail.

[0012] Preferably, a lifting mechanism is provided on the base plate between the two side carriages. The lifting mechanism includes a telescopic rod, a support plate, and a hydraulic cylinder A. The two ends of the telescopic rod are connected to the base plate and the support plate, respectively. The body of the hydraulic cylinder A is connected to the base plate, and the output end of the hydraulic cylinder A is connected to the support plate.

[0013] Preferably, the drive assembly C includes a toothed ring, gear A, a synchronous belt, and a motor. The toothed ring is coaxially connected to the turntable, and the opening of the toothed ring is aligned with the feed inlet. Two rotating shafts are spaced apart on the support plate, and a gear A is coaxially mounted on each of the two rotating shafts. Both gears A mesh with the toothed ring. A pulley is coaxially mounted on each of the two rotating shafts, and the two pulleys are connected by a synchronous belt drive. The motor body is connected to the support plate, and the output end of the motor is connected to one of the rotating shafts through a coupling.

[0014] Preferably, the clamping assembly includes a U-shaped frame and a clamping roller. The U-shaped frame is slidably disposed in the horizontal section of the T-shaped groove and slidably connected to its inner wall. The openings of the two U-shaped frames are opposite to each other. The clamping roller is rotatably disposed inside the opening of the U-shaped frame, and an arc-shaped groove is provided on the arc surface of the clamping roller. An anti-slip pad is provided on the concave surface of the arc-shaped groove.

[0015] Preferably, the driving mechanism includes a slider, a gear B, and a hydraulic cylinder B. A groove is provided on the turntable, and several slide rods are provided in the groove. The slider is slidably disposed in the groove and slidably connected to the slide rods. A rack is provided on the side of the two sliders that are close to each other. The racks on both sides are slidably connected to the slide rods on the corresponding sides. The gear B is centrally disposed in the groove and rotatably connected to the turntable. Two racks are located on both sides of the gear B and are meshed with the gear B. The body of the hydraulic cylinder B is connected to the turntable, and the output end of the hydraulic cylinder B is connected to one of the sliders.

[0016] Preferably, two positioning plates are symmetrically arranged inside the horizontal section of the T-shaped groove, and the U-shaped frame is slidably connected to the corresponding side positioning plate.

[0017] Compared with the prior art, the present invention has the following beneficial technical effects:

[0018] By setting up a lifting mechanism, the bridge shell is supported and protected as the turntables on both sides move away from each other. On the one hand, this prevents the bridge shell from falling off the support plate at one end, which would cause the support plate at the other end to bend due to excessive force. On the other hand, it also helps to support the bridge shell and lift it into the clamping position suitable for insertion between the two sets of clamping rollers 18, eliminating the need for manual lifting and saving manpower. By setting up a support plate with a round hole and a feed inlet, and setting a turntable with a T-shaped groove in the round hole, clamping rollers and a drive mechanism for driving the clamping rollers to move closer or further apart are set up in the T-shaped groove. At the same time, a drive component C for driving the turntable to rotate is set up on the support plate, which can realize the clamping and fixing of straight tubes of bridge shells of different sizes. The whole set of equipment has few operation steps and is easy to operate. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0020] Figure 2 A schematic diagram of the connection structure of the various components on the turntable;

[0021] Figure 3 This is a schematic diagram of the connection structure between the drive mechanism and the U-shaped frame.

[0022] Reference numerals: 1. Base plate; 2. Guide rail; 3. Welding mechanism; 4. Linear module; 5. Telescopic rod; 6. Support plate; 7. Hydraulic cylinder A; 8. Slide carriage; 9. Bidirectional module; 10. Support plate; 1001. Feed port; 11. Turntable; 111. T-slot; 12. Gear ring with missing teeth; 13. Gear A; 14. Pulley; 15. Synchronous belt; 16. Motor; 17. U-shaped frame; 18. Clamping roller; 19. Drive mechanism; 191. Slider; 192. Rack; 193. Gear B; 194. Hydraulic cylinder B; 20. Positioning plate. Detailed Implementation

[0023] Example 1, as Figures 1-3As shown, this utility model proposes a welding fixture for an automotive axle housing, comprising a base plate 1, a slide 8, a turntable 11, a clamping assembly, and a drive mechanism 19. A welding mechanism 3 is slidably mounted on the base plate 1, and a drive assembly A for moving the welding mechanism 3 is mounted on the base plate 1. The welding mechanism 3 includes a multi-axis welding robot and a base. The fixed part of the multi-axis welding robot is connected to the base, and the base is slidably connected to the base plate 1. A guide rail 2 is mounted on the base plate 1, and the base is slidably connected to the guide rail 2. The drive assembly A includes, but is not limited to, a linear module 4. The body of the linear module 4 is connected to the base plate 1 and parallel to the guide rail 2, and the base is connected to the output end of the linear module 4. Two sets of carriages 8 are symmetrically arranged about the center of the lifting mechanism and slidably mounted on the base plate 1. The carriages 8 are slidably connected to the guide rail 2. The base plate 1 is provided with a drive assembly B that drives the two carriages 8 to move closer or further away synchronously. The drive assembly B includes, but is not limited to, a bidirectional module 9. The body of the bidirectional module 9 is connected to the base plate 1 and parallel to the guide rail 2. The two sets of carriages 8 are respectively connected to the output ends on the corresponding sides of the bidirectional module 9. A support plate 10 with a circular hole is provided on the carriage 8. The support plate 10 is provided with an inlet 1001 communicating with the circular hole. The turntable 11 is located inside the circular hole and is coaxially rotatably connected to its inner wall. The turntable 11 is provided with a T-shaped groove 111. The vertical part of the T-shaped groove 111 is connected to the inlet 1001. The support plate 10 is provided with a drive assembly C that drives the turntable 11 to rotate around the axis of the circular hole. The drive assembly C includes a toothed ring 12, gears A13, a timing belt 15, and a motor 16. The toothed ring 12 is coaxially connected to the turntable 11, and the opening of the toothed ring 12 is aligned with the feed inlet 1001. Two rotating shafts are spaced apart on the support plate 10, and a gear A13 is coaxially mounted on each of the two rotating shafts. Both gears A13 mesh with the toothed ring 12. A pulley 14 is coaxially mounted on each of the two rotating shafts, and the two pulleys 14 are connected by a timing belt 15. The motor 16 is connected to the support plate 10, and the output end of the motor 16 is connected to one of the rotating shafts via a coupling. Two sets of clamping assemblies are respectively located at both ends of the horizontal and vertical portions of the T-slot 111 and are slidably connected to its inner wall. The clamping assembly includes a U-shaped frame 17 and a clamping roller 18. The U-shaped frame 17 is slidably disposed within the horizontal section of the T-shaped groove 111 and slidably connected to its inner wall. The openings of the two U-shaped frames 17 face each other. The clamping roller 18 is rotatably disposed inside the opening of the U-shaped frame 17, and an arc-shaped groove is provided on the arc surface of the clamping roller 18. An anti-slip pad is provided on the concave surface of the arc-shaped groove. Two positioning plates 20 are symmetrically arranged within the horizontal section of the T-shaped groove 111, and the U-shaped frame 17 is slidably connected to the corresponding side positioning plate. The drive mechanism 19 is disposed on the turntable 11 and drives the clamping assemblies on both sides to move closer or further away synchronously.The drive mechanism 19 includes a slider 191, a gear B193, and a hydraulic cylinder B194. A slide groove is provided on the turntable 11, and several slide rods are provided in the slide groove. The slider 191 is slidably disposed in the slide groove and slidably connected to the slide rods. A rack 192 is provided on the side of the two sliders 191 that are close to each other. The racks 192 on both sides are slidably connected to the slide rods on the corresponding sides. The gear B193 is centrally disposed in the slide groove and rotatably connected to the turntable 11. The two racks 192 are located on both sides of the gear B193 and are meshed with the gear B193. The body of the hydraulic cylinder B194 is connected to the turntable 11, and the output end of the hydraulic cylinder B194 is connected to one of the sliders 191.

[0024] In this embodiment, the hydraulic cylinder B194 is connected to an external hydraulic pump. First, the distance between the two support plates 10 on both sides is adjusted using the bidirectional module 9, and the motor 16 is started. The motor 16 drives the two gears A13 to rotate synchronously, thereby driving the toothed ring 12 to rotate until its notch is aligned with the feed inlet 1001. At this time, the opening of the T-slot 111 is also aligned with the feed inlet 1001. After the two symmetrically cast bridge shell parts are joined together, they are placed into the T-slot 111 along the feed inlet 1001 and between the clamping rollers 18 on both sides. The hydraulic cylinder B194 is started, and the hydraulic cylinder B194 pulls the U-shaped frame 17 on one side to slide, thereby driving the U-shaped frame 17 on the other side to slide synchronously through the transmission action of the gear B193 and the rack 192. The U-shaped frames 17 on both sides move closer to each other synchronously, so that the clamping rollers 18 move in accordance with the... Figure 1 The two axle housing components are clamped together. The bidirectional module 9 is activated so that the support plates 10 on both sides move closer and closer until they touch the center of the axle housing. The welding robot is used to spot weld the joint of the two axle housing components. Then, welding is started on the exposed part of the joint. After the weld on one side is completed, the spacing of the support plates 10 is increased to expose the previously covered weld. The weld is then welded. After welding is completed, the motor 16 is activated. The motor 16 drives the gear A13 to rotate, thereby driving the toothed ring 12, the turntable 11 and the axle housing to rotate 180 degrees. After the rotation is completed, the current weld of the axle housing is welded again, and then the position covered by the support plate 10 is welded. After welding is completed, the turntable 11 rotates and resets, the U-shaped frame 17 slides back and resets, and the axle housing can be lifted up and down.

[0025] Example 2, as follows Figure 1 As shown, the present invention proposes a welding fixture for an automobile axle housing. Compared with Embodiment 1, a lifting mechanism is provided on the base plate 1 between the two side slides 8. The lifting mechanism includes a telescopic rod 5, a support plate 6 and a hydraulic cylinder A7. The two ends of the telescopic rod 5 are respectively connected to the base plate 1 and the support plate 6. The body of the hydraulic cylinder A7 is connected to the base plate 1, and the output end of the hydraulic cylinder A7 is connected to the support plate 6.

[0026] In this embodiment, the stacked bridge shells are supported by the support plate 6, and the support plate 6 is used to hold the bridge shells when switching welding positions. The friction between the support plate 6 and the center of the bridge shell is used to prevent the bridge shells from moving to one side due to uneven friction distribution of the clamping rollers 18 on both sides, thereby preventing the other end of the bridge shell from falling off the turntable 11.

[0027] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A welding fixture for an automobile axle housing, characterized in that, include: A base plate (1) is provided, a welding mechanism (3) is slidably provided on the base plate (1), and a driving component A for driving the welding mechanism (3) to move is provided on the base plate (1); The slide (8) is symmetrical about the center of the lifting mechanism and is slidably set on the base plate (1). The base plate (1) is provided with a drive component B that drives the two slides (8) to move closer or further away synchronously. The slide (8) is provided with a support plate (10) with a round hole. The support plate (10) is provided with an inlet (1001) that communicates with the round hole. Turntable (11) is located inside the round hole and is coaxially connected to its inner wall. A T-slot (111) is provided on the turntable (11). The vertical part of the T-slot (111) is connected to the feed inlet (1001). A drive assembly C for driving the turntable (11) to rotate around the axis of the round hole is provided on the support plate (10). Clamping components, two sets of clamping components are respectively set at both ends of the horizontal and vertical part of the T-shaped groove (111) and slidably connected to its inner wall; And a drive mechanism (19), which is set on the turntable (11) and drives the clamping components on both sides to move closer or further away synchronously.

2. The welding fixture for an automotive axle housing according to claim 1, characterized in that, The welding mechanism (3) includes a multi-axis welding robot and a base. The fixed part of the multi-axis welding robot is connected to the base. The base is slidably connected to the base plate (1). A guide rail (2) is provided on the base plate (1). The base is slidably connected to the guide rail (2), and the carriage (8) is slidably connected to the guide rail (2).

3. The welding fixture for an automotive axle housing according to claim 1, characterized in that, A lifting mechanism is provided on the base plate (1) between the two side slides (8). The lifting mechanism includes a telescopic rod (5), a support plate (6) and a hydraulic cylinder A (7). The two ends of the telescopic rod (5) are connected to the base plate (1) and the support plate (6) respectively. The body of the hydraulic cylinder A (7) is connected to the base plate (1), and the output end of the hydraulic cylinder A (7) is connected to the support plate (6).

4. The welding fixture for an automotive axle housing according to claim 1, characterized in that, The drive assembly C includes a toothed ring (12), a gear A (13), a timing belt (15), and a motor (16). The toothed ring (12) is coaxially connected to the turntable (11), and the opening of the toothed ring (12) is aligned with the feed inlet (1001). Two rotating shafts are spaced apart on the support plate (10), and a gear A (13) is coaxially mounted on each of the two rotating shafts. Both gears A (13) mesh with the toothed ring (12). A pulley (14) is coaxially mounted on each of the two rotating shafts. The two pulleys (14) are connected by a timing belt (15). The motor (16) is connected to the support plate (10), and the output end of the motor (16) is connected to one of the rotating shafts by a coupling.

5. The welding fixture for an automotive axle housing according to claim 1, characterized in that, The clamping assembly includes a U-shaped frame (17) and a clamping roller (18). The U-shaped frame (17) is slidably disposed in the horizontal part of the T-shaped groove (111) and slidably connected to its inner wall. The openings of the two U-shaped frames (17) are opposite to each other. The clamping roller (18) is rotatably disposed inside the opening of the U-shaped frame (17). An arc-shaped groove is provided on the arc surface of the clamping roller (18), and an anti-slip pad is provided on the concave surface of the arc-shaped groove.

6. The welding fixture for an automotive axle housing according to claim 5, characterized in that, The drive mechanism (19) includes a slider (191), a gear B (193) and a hydraulic cylinder B (194). A groove is provided on the turntable (11), and several sliding rods are provided in the groove. The slider (191) is slidably disposed in the groove and slidably connected to the sliding rods. A rack (192) is provided on the side of the slider (191) on both sides. The racks (192) on both sides are slidably connected to the corresponding sliding rods. The gear B (193) is centrally disposed in the groove and rotatably connected to the turntable (11). The two racks (192) are located on both sides of the gear B (193) and mesh with the gear B (193). The body of the hydraulic cylinder B (194) is connected to the turntable (11), and the output end of the hydraulic cylinder B (194) is connected to one of the sliders (191).

7. The welding fixture for an automotive axle housing according to claim 5, characterized in that, Two positioning plates (20) are symmetrically arranged in the horizontal and vertical part of the T-shaped groove (111), and the U-shaped frame (17) is slidably connected to the corresponding side positioning plate.

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