Three-dimensional positioning clamp for axle welding

Abstract

The utility model discloses a three-dimensional positioning fixture for axle welding, which comprises a base, the top of the base is fixedly connected with an upright post close to the side part, the center of the top of the base is provided with a rotating mechanism, and the top of the upright post is fixedly connected with a three-dimensional positioning mechanism. By arranging the three-dimensional positioning mechanism, axles of different models can be pressed and fixed, so that when the axles are welded, the axles can be kept stable, the machining efficiency and the machining quality are improved, the rotating mechanism is arranged at the bottom in a matched mode, the different axles can be rotated by a certain angle, and the welding quality of the axles is improved. And external welding equipment can conveniently and flexibly adjust the machining angle, and the welding efficiency and flexibility are further guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of axle processing and application technology, and in particular to a three-dimensional positioning fixture for axle welding. Background Technology

[0002] The axle is an important component of a car. It is located under the chassis and mainly plays a role in supporting the vehicle body, transmitting power, bearing vehicle load, and ensuring vehicle stability and handling. Axles are generally divided into front axles and rear axles. The front axle is usually responsible for steering and also bears some load, while the rear axle is mainly used to drive the vehicle, transmitting the engine's power to the wheels through the drive shaft, enabling the vehicle to move forward or backward.

[0003] In the welding production of automobile axles, the welding accuracy of axle components (such as axle housings, axle sleeves, connecting plates, etc.) directly affects the load-bearing capacity and service life of the axle. Traditional positioning fixtures usually adopt fixed tooling or simple adjustable structures, which have the following problems: insufficient positioning freedom: they can only achieve two-dimensional planar positioning, which cannot meet the three-dimensional positioning requirements of complex curved surfaces or multi-directional welding of axles; low adjustment efficiency: manual adjustment mechanisms are cumbersome to operate and difficult to quickly adapt to the size changes of different models of axles. Therefore, this utility model proposes a three-dimensional positioning fixture for axle welding. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a three-dimensional positioning fixture for vehicle axle welding, which realizes precise three-dimensional positioning and rapid clamping of vehicle axle workpieces through a multi-axis linkage adjustment mechanism, thereby improving welding accuracy and production efficiency.

[0005] To solve the above-mentioned technical problems, the present invention provides a three-dimensional positioning fixture for vehicle axle welding, including a base, a column fixedly connected to the top of the base near the side, a rotating mechanism installed at the center of the top of the base, and a three-dimensional positioning mechanism fixedly connected to the top of the column.

[0006] The present invention is further configured such that: the rotating mechanism includes a rotating column rotatably connected to the center of the base, a receiving plate is fixedly connected to the top of the rotating column, a support frame is symmetrically fixedly connected to the top of the receiving plate near the end face, a worm wheel is sleeved on the outer wall of the rotating column near the middle, a worm is meshed with the outer wall of the worm wheel, and a rotating motor is engaged at one end of the worm.

[0007] By using the above technical solution, the rotating motor is started, and its output shaft drives the worm gear on the end face to rotate, thereby causing the worm wheel connected to the outer wall to drive the rotating column to rotate stably on the base, thus realizing the rotation of the axle placed on the receiving plate at a certain angle, which facilitates the subsequent clamping and fixing operation.

[0008] The present invention is further configured such that: a stabilizing groove is provided on the top of each of the two support frames, and a buffer protective pad is adhered to the inner wall of the groove.

[0009] The above technical solution facilitates the pre-installation of the axle using the stabilizing groove, and the use of the buffer protective pad can provide protective clamping and fixing of the compressed axle.

[0010] The present invention is further configured such that: the three-dimensional positioning mechanism includes an X-axis plate installed on the top of the column, two positioning plates are fixedly connected to the top of the X-axis plate, an X-axis motor is bolted to the middle of the side wall of one of the positioning plates, an X-axis lead screw is fixedly connected to the drive end of the X-axis motor, and slide rods are symmetrically fixedly connected to the opposite surfaces of the two positioning plates away from the X-axis lead screw.

[0011] By using the above technical solution, the X-axis motor is started, and its output shaft drives the rotation of the X-axis lead screw on the end face, so that the Y-axis plate connected to the outer wall thread can slide and adjust, and under the action of the slide rod, stable movement adjustment is achieved.

[0012] The present invention is further configured such that: the three-dimensional positioning mechanism further includes a Y-axis plate threaded to the X-axis lead screw, and the Y-axis plate is slidably connected to two slide rods. A Y-axis motor is bolted to the bottom of the Y-axis plate near the end face. A drive wheel is sleeved on the output end of the Y-axis motor. A transmission belt is meshed on the outer wall of the drive wheel. A driven wheel is meshed on the other end of the transmission belt. A Y-axis bidirectional lead screw is sleeved on the inner wall of the driven wheel. The Y-axis bidirectional lead screw is rotatably connected to the Y-axis plate.

[0013] By using the above technical solution, the Y-axis motor is started, and its output shaft drives the driving wheel on the end face to rotate. The driven wheel is driven to rotate by the transmission belt, thereby realizing the rotation of the Y-axis bidirectional lead screw on the Y-axis plate, which allows the threaded sliding block to move and adjust.

[0014] The present invention is further configured such that: the three-dimensional positioning mechanism also includes slides symmetrically threaded to a bidirectional lead screw on the Y-axis; the top end faces of the two slides are bolted to connecting plates; the tops of the two connecting plates are symmetrically bolted to clamping cylinders about the middle position; the drive rod end faces of the two sets of clamping cylinders are bolted to pressure plates; and the bottoms of the two pressure plates are threaded to multiple positioning pins.

[0015] The above technical solution utilizes a sliding block to adjust the Y-axis plate, moving it to the accurate position. Then, the clamping cylinder is activated, causing its drive rod to move the pressure plate on the end face, thereby pressing multiple positioning pins onto the bottom axle. The protective caps on the end faces of the positioning pins ensure protection at the contact points with the axle.

[0016] The present invention is further configured such that: the bottom of the two slide blocks is slidably connected to the top of the Y-axis plate near the end face; the bottom of the two pressure plates is provided with mounting holes; and the bottom end faces of the multiple positioning pins are all equipped with protective caps.

[0017] The above technical solution facilitates the reasonable installation and fixation of the positioning pin on the pressure plate according to the model of the axle, and the use of protective caps enables the positioning pin to achieve protective clamping and fixation when it is pressed.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1. The three-dimensional positioning fixture for axle welding proposed in this utility model, by setting a three-dimensional positioning mechanism, can clamp and fix axles of different models, thereby ensuring the stability of the axles during welding, improving processing efficiency and quality;

[0020] 2. The three-dimensional positioning fixture for axle welding proposed in this utility model has a rotating mechanism at the bottom, which enables it to rotate different axles at a certain angle, facilitating flexible adjustment of the processing angle by external welding equipment, and further ensuring the efficiency and flexibility of welding. Attached Figure Description

[0021] Figure 1 This is a first structural diagram of a three-dimensional positioning fixture for vehicle axle welding according to the present invention;

[0022] Figure 2 This is a second structural diagram of a three-dimensional positioning fixture for axle welding according to the present invention;

[0023] Figure 3 This is a structural diagram of the base in a three-dimensional positioning fixture for axle welding according to this utility model;

[0024] Figure 4 This is a structural diagram of the X-axis plate in a three-dimensional positioning fixture for axle welding according to this utility model;

[0025] Figure 5 This is a first structural diagram of the Y-axis plate in a three-dimensional positioning fixture for vehicle axle welding according to this utility model;

[0026] Figure 6 This is a second structural diagram of the Y-axis plate in a three-dimensional positioning fixture for vehicle axle welding according to this utility model.

[0027] In the diagram: 1. Base; 2. Column; 3. Rotating mechanism; 31. Rotating column; 32. Support plate; 33. Support frame; 34. Worm gear; 35. Worm; 36. Rotating motor; 4. Three-dimensional positioning mechanism; 41. X-axis plate; 411. Positioning plate; 412. X-axis motor; 413. X-axis lead screw; 414. Slide rod; 42. Y-axis plate; 421. Y-axis motor; 422. Driving wheel; 423. Transmission belt; 424. Driven wheel; 425. Y-axis double-acting lead screw; 43. Slide block; 431. Connecting plate; 432. Clamping cylinder; 433. Pressure plate; 4331. Mounting hole; 434. Positioning pin; 4341. Protective cap. Detailed Implementation

[0028] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0029] like Figures 1-3 As shown, a three-dimensional positioning fixture for axle welding includes a base 1. A column 2 is fixedly connected to the top of the base 1 near its side. A rotating mechanism 3 is installed at the center of the top of the base 1. The rotating mechanism 3 includes a rotating column 31 rotatably connected to the center of the base 1. A receiving plate 32 is fixedly connected to the top of the rotating column 31. Support frames 33 are symmetrically fixedly connected to the top of the receiving plate 32 near its end face. Both support frames 33 have stabilizing grooves on their tops, and buffer protective pads are adhered to the inner walls of the grooves, facilitating the predetermined installation of the axle using the stabilizing grooves. Furthermore, the use of a buffer protective pad can provide protective clamping and fixing of the compressed axle. A worm gear 34 is sleeved on the outer wall of the rotating column 31 near the middle position. A worm 35 is meshed with the outer wall of the worm gear 34. One end of the worm 35 is engaged with a rotating motor 36. When the rotating motor 36 is started, its output shaft drives the worm 35 at the end face to rotate, thereby causing the worm gear 34 meshed with the outer wall to drive the rotating column 31 to rotate stably on the base 1, thereby realizing the rotation of the axle placed on the receiving plate 32 at a certain angle, which facilitates the subsequent clamping and fixing operation.

[0030] like Figures 4-6As shown, a three-dimensional positioning mechanism 4 is fixedly connected to the top of the column 2. The three-dimensional positioning mechanism 4 includes an X-axis plate 41 installed on the top of the column 2. Two positioning plates 411 are fixedly connected to the top of the X-axis plate 41. An X-axis motor 412 is bolted to the middle of the side wall of one of the positioning plates 411. An X-axis lead screw 413 is fixedly connected to the drive end of the X-axis motor 412. Slide rods 414 are symmetrically fixedly connected to the opposite surfaces of the two positioning plates 411 away from the X-axis lead screw 413. When the X-axis motor 412 is started, its output shaft drives the rotation of the X-axis lead screw 413 on the end face, causing the Y-axis plate 42 with the threaded connection on the outer wall to slide and adjust. Under the action of the slide rods 414, stability is achieved. The three-dimensional positioning mechanism 4 also includes a Y-axis plate 42 threadedly connected to the X-axis lead screw 413, and the Y-axis plate 42 is slidably connected to two slide rods 414. A Y-axis motor 421 is bolted to the bottom of the Y-axis plate 42 near its end face. A drive wheel 422 is sleeved on the output end of the Y-axis motor 421. A transmission belt 423 is meshed on the outer wall of the drive wheel 422. A driven wheel 424 is meshed on the other end of the transmission belt 423. A Y-axis bidirectional lead screw 425 is sleeved on the inner wall of the driven wheel 424. The Y-axis bidirectional lead screw 425 is rotatably connected to the Y-axis plate 42. When the Y-axis motor 421 is started, its output shaft drives the drive wheel 422 on its end face to rotate, and the transmission belt 423 drives the driven wheel 424 to rotate. The rotation of the driving wheel 424 causes the Y-axis bidirectional lead screw 425 to rotate on the Y-axis plate 42, thereby moving and adjusting the threaded sliding block 43. The three-dimensional positioning mechanism 4 also includes sliding blocks 43 symmetrically threaded to the Y-axis bidirectional lead screw 425. The top end faces of both sliding blocks 43 are bolted to connecting plates 431. The tops of both connecting plates 431 are symmetrically bolted to clamping cylinders 432 about the middle position. The drive rod end faces of both sets of clamping cylinders 432 are bolted to pressure plates 433. The bottoms of both pressure plates 433 are threaded to multiple positioning pins 434. By sliding and adjusting the sliding block 43 on the Y-axis plate 42, it is moved to the accurate position, and then the clamping is activated. The cylinder 432 drives the pressure plate 433 on its end face to move, thereby pressing multiple positioning pins 434 onto the bottom axle. The protective caps 4341 on the end faces of the positioning pins 434 ensure protection at the contact points with the axle. The bottom of the two slide blocks 43 is slidably connected to the top of the Y-axis plate 42 near the end face. The bottom of the two pressure plates 433 is provided with mounting holes 4331. The bottom end faces of the multiple positioning pins 434 are all equipped with protective caps 4341, which facilitates the reasonable installation and fixation of the positioning pins 434 on the pressure plate 433 according to the axle model. The protective caps 4341 also enable the positioning pins 434 to achieve protective pressing and fixation when they are pressed.

[0031] In use, the axle to be processed is first placed on the support frame 33 and pre-fixed. Then, according to the clamping requirements, the rotating mechanism 3 is started, and the rotating motor 36 is driven. Its output shaft drives the worm gear 35 on the end face to rotate, so that the worm wheel 34 connected to the outer wall drives the rotating column 31 to rotate stably on the base 1, thereby realizing the rotation of the axle placed on the receiving plate 32 at a certain angle. Then, the X-axis motor 412 and the Y-axis motor 421 are started respectively, so that the Y-axis plate 42 slides on the X-axis plate 41 in the X-axis direction, and the slide block 43 moves on the Y-axis plate 42 in the Y-axis direction. Finally, the clamping cylinder 432 is started, so that its drive rod drives the pressure plate 433 on the end face to move, thereby pressing multiple positioning pins 434 on the bottom axle. The protective caps 4341 on the end face of the positioning pins 434 ensure protection at the contact point with the axle, thereby realizing the positioning and fixing of the axle.

[0032] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A three-dimensional positioning fixture for welding an axle, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected with a stand (2) near the side position, a rotating mechanism (3) is installed at the center of the top of the base (1), and the top of the stand (2) is fixedly connected with a three-dimensional positioning mechanism (4); The three-dimensional positioning mechanism (4) comprises an X-axis plate (41) installed at the top of the stand (2), the top of the X-axis plate (41) is fixedly connected with two positioning plates (411), the side wall of one of the positioning plates (411) is boltedly connected with an X-axis motor (412) at the middle position, the driving end of the X-axis motor (412) is fixedly connected with an X-axis screw rod (413), and the opposite faces of the two positioning plates (411) are fixedly connected with slide rods (414) at positions away from the X-axis screw rod (413). The three-dimensional positioning mechanism (4) further comprises a Y-axis plate (42) screwedly connected with the X-axis screw rod (413), the Y-axis plate (42) is slidably connected with the two slide rods (414), the bottom of the Y-axis plate (42) is boltedly connected with a Y-axis motor (421) near the end face position, the output end of the Y-axis motor (421) is sleeved with a driving wheel (422), the outer wall of the driving wheel (422) is engagedly sleeved with a transmission belt (423), the other end of the transmission belt (423) is engagedly sleeved with a driven wheel (424), the inner wall of the driven wheel (424) is sleeved with a Y-axis bidirectional screw rod (425), and the Y-axis bidirectional screw rod (425) is rotatably connected with the Y-axis plate (42). The three-dimensional positioning mechanism (4) further comprises slide seats (43) symmetrically screwedly connected with the Y-axis bidirectional screw rod (425), the top end faces of the two slide seats (43) are both boltedly connected with connecting plates (431), the tops of the two connecting plates (431) are both boltedly connected with clamping air cylinders (432) in a symmetric manner about the middle positions, the driving rod end faces of the two groups of clamping air cylinders (432) are both boltedly connected with pressing plates (433), and the bottoms of the two pressing plates (433) are threadedly connected with a plurality of positioning pins (434). The bottoms of the two slide seats (43) are slidably connected with the top of the Y-axis plate (42) near the end face positions, the bottoms of the two pressing plates (433) are both provided with mounting holes (4331), and the bottom end faces of the plurality of positioning pins (434) are both provided with protective caps (4341).

2. The three-dimensional positioning fixture for welding an axle according to claim 1, wherein: The rotating mechanism (3) comprises a rotating column (31) rotatably connected with the center of the base (1), the top of the rotating column (31) is fixedly connected with a receiving plate (32), the top of the receiving plate (32) is fixedly connected with support frames (33) in a symmetric manner near the end face positions, the outer wall of the rotating column (31) is sleeved with a worm gear (34) near the middle position, the outer wall of the worm gear (34) is engagedly connected with a worm (35), and one end of the worm (35) is clampingly connected with a rotating motor (36).

3. The three-dimensional positioning fixture for welding an axle according to claim 2, wherein: The tops of the two support frames (33) are both provided with stable grooves, and buffer protection pads are attached to the groove inner walls.

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