Positioning tooling for axle body welding

Abstract

The invention discloses a positioning tool for welding axle body, comprising a frame, a fixed seat, a swing seat, a driving member, a transmission pair, a positioning plate for positioning the axle body, a spring plate seat positioning mechanism, an air chamber support positioning mechanism and an end positioning mechanism, wherein the fixed seat is mounted on the frame, the swing seat is hinged with the fixed seat, the positioning plate is mounted on the swing seat, the driving member is mounted on the fixed seat, the transmission pair connects the output end of the driving member and the swing seat, the air chamber support positioning mechanism is mounted on the swing seat, the end positioning mechanism is slidably mounted on the frame to position the end of the axle body, the spring plate seat positioning mechanism is slidably mounted on the frame, and the spring plate seat positioning mechanism is located between the end positioning mechanism and the air chamber support positioning mechanism. The positioning tool has the advantages of simple and reliable structure, can realize accurate angle positioning, can improve welding quality and welding efficiency, and has a wide range of applications.

Description

Technical Field

[0001] The invention mainly relates to a welding technology for a vehicle axle body, and in particular to a positioning tool for welding a vehicle axle body. Background Art

[0002] The axle body includes an axle housing, an air chamber support welded on the axle housing and a spring plate seat covering the axle housing. The spring plate seat includes four upper and lower front and rear plates. The four plates are welded in sequence to form a covering structure that covers and is fixed on the axle housing.

[0003] In the prior art, the air chamber support is manually positioned on the axle housing and then welded. In addition, four plates are manually placed on the axle housing and then welded, and finally a spring plate seat is formed to be covered and fixed on the axle housing, and the spring plate seat and the axle housing need to form a certain angle. This method cannot achieve accurate angle positioning when welding the spring plate seat and the air chamber support, which affects the welding quality and welding efficiency. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a positioning tool for axle body welding which has a simple and reliable structure, can achieve precise angle positioning, can improve welding quality and welding efficiency, and has a wide range of applications.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A positioning tool for welding an axle body comprises a frame, a fixed seat, a swing seat, a driving member, a transmission pair, a positioning plate for positioning the axle body, a spring plate seat positioning mechanism, an air chamber support positioning mechanism and an end positioning mechanism, wherein the fixed seat is mounted on the frame, the swing seat is hinged to the fixed seat, the positioning plate is mounted on the swing seat, the driving member is mounted on the fixed seat, the transmission pair connects the output end of the driving member and the swing seat, the air chamber support positioning mechanism is mounted on the swing seat, the end positioning mechanism is slidably mounted on the frame to position the end of the axle body, the spring plate seat positioning mechanism is slidably mounted on the frame, and the spring plate seat positioning mechanism is located between the end positioning mechanism and the air chamber support positioning mechanism.

[0007] As a further improvement of the above technical solution:

[0008] The fixed seat includes a transverse base and a vertical hinge seat connected to each other, the swing seat includes a transverse swing seat and a vertical hinge ear connected to each other, the vertical hinge ear is hinged to the vertical hinge seat, the positioning plate is installed on the transverse swing seat, the transverse base is installed on the frame, the driving member is installed on the transverse base, the transmission pair connects the output end of the driving member and the transverse swing seat, and the air chamber support positioning mechanism is installed on the transverse swing seat.

[0009] The transmission pair comprises a driving gear and a swing gear, wherein the driving gear is connected to the output end of the driving member, and the swing gear is fixed on the transverse swing seat and meshes with the driving gear.

[0010] An angle sensor is arranged on the transverse swing seat.

[0011] A plurality of clamping platforms for positioning the axle body are arranged around the positioning plate.

[0012] The card platform is provided with multiple steps for matching axle bodies of different sizes.

[0013] The driving member is configured as a motor.

[0014] The spring plate seat positioning mechanism comprises a mounting seat and a positioning group for positioning four plate members of the spring plate seat. The mounting seat is slidably mounted on the frame, and the positioning group is arranged on the mounting seat.

[0015] The positioning group includes a top plate positioning member, a bottom plate positioning member and a pair of side plate positioning members, the bottom plate positioning member and the pair of side plate positioning members are both mounted on the mounting seat, and the top plate positioning member is butted with the pair of side plate positioning members after clamping the top plate.

[0016] The side plate positioning member includes a side support arm, a side thrust cylinder and a side thrust positioning plate. The side support arm is mounted on a mounting seat, the side thrust cylinder is mounted on the side support arm, and the side thrust positioning plate is mounted on an output end of the side thrust cylinder.

[0017] The side push positioning plate comprises a side push block and a side magnetic block. The side push block is installed at the output end of the side push cylinder, and the side magnetic block is installed on the side push block.

[0018] The side push block is provided with a positioning pin for matching with the hole position on the side plate of the spring plate seat.

[0019] The bottom plate positioning member comprises a lifting cylinder and a lifting positioning plate. The lifting cylinder is mounted on a mounting seat, and the lifting positioning plate is mounted on an output end of the lifting cylinder.

[0020] A guide sleeve is installed at the fixed end of the lifting cylinder, and a guide rod which is sleeved with the guide sleeve is installed on the lifting positioning plate.

[0021] The jacking and positioning plate comprises a jacking block and a jacking magnetic block. The jacking block is installed at the output end of the jacking cylinder, and the jacking magnetic block is installed on the jacking block.

[0022] The top magnetic block is provided with a top buckle and a top groove for cooperating with the bottom plate of the spring plate seat.

[0023] The top plate positioning member comprises a lifting handle and a lifting magnetic block, and the lifting magnetic block is installed on the lifting handle.

[0024] The lifting magnetic suction block is provided with a bottom buckle and a bottom groove for cooperating with the top plate of the spring plate seat.

[0025] The air chamber support positioning mechanism includes a fixed arm, a swing arm cylinder and a chuck for clamping the air chamber support, the fixed arm is installed on the swing seat, the swing arm cylinder is installed on the fixed arm, and the chuck is installed on the output end of the swing arm cylinder.

[0026] The clamping head comprises a mounting platform and a clamping platform, wherein the mounting platform is mounted on the output end of the swing arm cylinder, and the clamping platform is mounted on the mounting platform.

[0027] The mounting platform comprises an upper fixing block, a lower fixing block and a pressure spring, the upper fixing block is mounted on the output end of the swing arm cylinder, the lower fixing block is connected to the upper fixing block through the pressure spring, and the clamping platform is mounted on the lower fixing block.

[0028] A guide column is provided between the upper fixing block and the lower fixing block.

[0029] The clamping platform comprises a clamping block and a pair of clamping plates arranged on the clamping block.

[0030] The clamping block is provided with a spring pin for tightening the air chamber support.

[0031] The clamping platform is provided with a handle for facilitating the resetting of the swing arm cylinder.

[0032] The end positioning mechanism includes a bearing platform, a side fixing platform and a top pressing platform. The bearing platform and the side fixing platform are both installed on the frame. The top pressing platform is installed on the side fixing platform and cooperates with the bearing platform to clamp the end of the axle body.

[0033] A detachable V-shaped positioning platform is arranged on the top of the bearing platform.

[0034] Compared with the prior art, the advantages of the present invention are:

[0035] The positioning fixture for welding the axle body of the present invention, when clamping, first starts the driving member to drive the transmission pair to drive the swing seat to swing to the required angle around the hinge point according to the angle required to be formed between the spring plate seat and the axle housing, at which time the positioning plate and the air chamber support positioning mechanism will both form the adjusted angle, and then the axle body is positioned on the positioning plate, and the axle body is also deflected to the adjusted angle; the end of the axle body is clamped and positioned by the end positioning mechanisms at both ends; then the four plates of the spring plate seat are installed on the spring plate seat positioning mechanism, the spring plate seat positioning mechanism slides to a predetermined position and is locked, and then the spring plate seat positioning mechanism is used to position the four plates on the axle housing to form a covering, and finally the four plates are welded in sequence; finally, the air chamber support is installed on the air chamber support positioning mechanism, and then the air chamber support positioning mechanism is started to press the air chamber support at the predetermined position of the axle body, and then the air chamber support is welded to the axle body. Compared with the traditional manual positioning method, the positioning tooling forms an angle deflection when the axle body is positioned through the pre-angle adjustment of the swing seat and the positioning plate, and then realizes the precise positioning of the spring plate seat and the air chamber support respectively through the spring plate seat positioning mechanism and the air chamber support positioning mechanism, ensuring that the spring plate seat and the axle housing finally form an angle, realizing precise angle positioning, the overall structure is simple and reliable, greatly improving the welding quality and efficiency, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a three-dimensional structural schematic diagram of the positioning tool used for axle body welding of the present invention (assembled use state).

[0037] Figure 2 It is a schematic diagram of the main structure of the positioning tool used for welding the axle body of the present invention (assembled and used state).

[0038] Figure 3 It is a top structural schematic diagram of the positioning tool used for axle body welding of the present invention (assembled use state).

[0039] Figure 4 It is a schematic diagram of the assembly main structure of a fixed seat and a swing seat in a positioning tool for welding an axle body of the present invention.

[0040] Figure 5 It is a schematic diagram of the assembly side structure of a fixed seat and a swing seat in a positioning tool for welding an axle body of the present invention.

[0041] Figure 6 It is a schematic diagram of the assembly three-dimensional structure of a fixed seat and a swing seat in a positioning tool for welding an axle body according to the present invention.

[0042] Figure 7 It is a three-dimensional structural schematic diagram of a side plate positioning piece in a positioning tool used for welding an axle body according to the present invention.

[0043] Figure 8 It is a schematic diagram of the main cross-sectional structure of a bottom plate positioning piece in a positioning tool for welding an axle body of the present invention.

[0044] Fig. 9 The side view schematic diagram of the structure of the bottom plate positioning piece in the positioning tooling used for axle body welding of the present invention.

[0045] Fig.10 It is a schematic diagram of the main structure of a top plate positioning piece in a positioning tool for welding an axle body of the present invention.

[0046] Fig.11 It is a three-dimensional structural schematic diagram of a top plate positioning piece in a positioning tool for welding an axle body according to the present invention.

[0047] Fig.12 It is a three-dimensional structural schematic diagram of the air chamber support positioning mechanism in the positioning tooling used for axle body welding of the present invention.

[0048] Fig.13 It is a schematic diagram of the main structure of the air chamber support positioning mechanism in the positioning tooling used for axle body welding of the present invention.

[0049] Fig.14 It is a three-dimensional structural schematic diagram of the end positioning mechanism in the positioning tooling used for axle body welding of the present invention.

[0050] The symbols in the figure represent:

[0051] 1. Frame; 2. Fixed seat; 21. Horizontal base; 22. Vertical hinge seat; 3. Swing seat; 31. Horizontal swing seat; 32. Vertical hinge ear; 4. Driving member; 5. Transmission pair; 51. Driving gear; 52. Swing gear; 6. Positioning plate; 61. Card table; 611. Step; 7. Spring plate seat positioning mechanism; 71. Mounting seat; 72. Positioning group; 721. Top plate positioning member; 7211. Lifting handle; 7212. Lifting magnetic block; 72121. Bottom buckle; 72122. Bottom groove; 722. Bottom plate positioning member; 7221. Lifting cylinder; 7222. Lifting positioning plate; 72221. Pushing block; 72222. Top magnetic block; 722221. Top buckle; 722222. Top groove; 7223 , guide sleeve; 7224, guide rod; 723, side plate positioning piece; 7231, side support arm; 7232, side push cylinder; 7233, side push positioning plate; 72331, side push block; 723311, positioning pin; 72332, side magnetic block; 8, air chamber support positioning mechanism; 81, fixed arm; 82, swing arm cylinder; 83, chuck; 831, mounting table; 8311, upper fixed block; 8312, lower fixed block; 8313, pressure spring; 8314, guide column; 832, clamping table; 8321, clamping block; 8322, clamping plate; 8323, spring pin; 84, handle; 9, end positioning mechanism; 91, bearing table; 911, V-shaped positioning table; 92, side fixing table; 93, top pressure table; 10, angle sensor. DETAILED DESCRIPTION

[0052] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0053] Figures 1 to 14An embodiment of the positioning tool for welding an axle body of the present invention is shown, comprising a frame 1, a fixed seat 2, a swing seat 3, a driving member 4, a transmission pair 5, a positioning plate 6 for positioning the axle body, a spring plate seat positioning mechanism 7, an air chamber support positioning mechanism 8 and an end positioning mechanism 9, the fixed seat 2 is mounted on the frame 1, the swing seat 3 is hinged to the fixed seat 2, the positioning plate 6 is mounted on the swing seat 3, the driving member 4 is mounted on the fixed seat 2, the transmission pair 5 connects the output end of the driving member 4 and the swing seat 3, the air chamber support positioning mechanism 8 is mounted on the swing seat 3, the end positioning mechanism 9 is slidably mounted on the frame 1 to position the end of the axle body, the spring plate seat positioning mechanism 7 is slidably mounted on the frame 1, and the spring plate seat positioning mechanism 7 is located between the end positioning mechanism 9 and the air chamber support positioning mechanism 8. During clamping, first, according to the angle required to be formed between the spring plate seat and the axle housing, start the driving member 4 to drive the transmission pair 5 to drive the swing seat 3 to swing to the required angle around the hinge point. At this time, the positioning plate 6 and the air chamber support positioning mechanism 8 will form the adjusted angle, and then the axle body is positioned on the positioning plate 6, and the axle body is also deflected to the adjusted angle; the ends of the axle body are clamped and positioned by the end positioning mechanisms 9 at both ends; then the four plates of the spring plate seat are installed on the spring plate seat positioning mechanism 7, the spring plate seat positioning mechanism 7 slides to the predetermined position and is locked, and then the spring plate seat positioning mechanism 7 is used to position the four plates on the axle housing to form a covering, and finally the four plates are welded in sequence; finally, the air chamber support is installed on the air chamber support positioning mechanism 8, and then the air chamber support positioning mechanism 8 is started to press the air chamber support at the predetermined position of the axle body, and then the air chamber support is welded to the axle body. Compared with the traditional manual positioning method, the positioning tooling forms an angle deflection when the axle body is positioned through the pre-angle adjustment of the swing seat 3 and the positioning plate 6, and then realizes the precise positioning of the spring plate seat and the air chamber support respectively through the spring plate seat positioning mechanism 7 and the air chamber support positioning mechanism 8, ensuring that the spring plate seat and the axle housing finally form an angle, realizing precise angle positioning, the overall structure is simple and reliable, greatly improving the welding quality and welding efficiency, and has a wide range of applications.

[0054] In this embodiment, the fixed seat 2 includes a transverse base 21 and a vertical hinge seat 22 connected to each other, the swing seat 3 includes a transverse swing seat 31 and a vertical hinge ear 32 connected to each other, the vertical hinge ear 32 is hinged to the vertical hinge seat 22, the positioning plate 6 is mounted on the transverse swing seat 31, the transverse base 21 is mounted on the frame 1, the driving member 4 is mounted on the transverse base 21, the transmission pair 5 connects the output end of the driving member 4 and the transverse swing seat 31, and the air chamber support positioning mechanism 8 is mounted on the transverse swing seat 31. In this structure, the transverse base 21 and the vertical hinge seat 22 form the fixed seat 2, which is shaped like an inverted T-shaped seat, the transverse swing seat 31 and the vertical hinge ear 32 form the swing seat 3, which is also shaped like an inverted T-shaped seat, and is hinged to the vertical hinge seat 22 through the vertical hinge ear 32. The swing seat 3 can swing around the hinge point through the driving member 4 and the transmission pair 5, and the structure is simple and ingenious.

[0055] In this embodiment, the transmission pair 5 includes a driving gear 51 and a swing gear 52. The driving gear 51 is connected to the output end of the driving member 4, and the swing gear 52 is fixed on the transverse swing seat 31 and meshes with the driving gear 51. In this structure, the driving member 4 drives the driving gear 51 to rotate, the driving gear 51 drives the swing gear 52 to swing, and the swing gear 52 drives the swing seat 3 to swing around the hinge. It has a simple structure and a clever design.

[0056] In this embodiment, an angle sensor 10 is provided on the lateral swing seat 31. The angle sensor 10 can ensure that the swing angle of the swing seat 3 is more accurate, thereby further improving the welding quality.

[0057] In this embodiment, a plurality of clamping platforms 61 for positioning the axle body are arranged around the positioning plate 6. The clamping platforms 61 are used to cooperate with the axle body for positioning to prevent the axle body from malfunctioning during welding.

[0058] In this embodiment, the clamping platform 61 is provided with multiple steps 611 for matching axle bodies of different sizes. The multiple steps 611 can adapt to the positioning of axle bodies of different sizes, thereby increasing its application range.

[0059] In this embodiment, the driving member 4 is configured as a motor, which has a simple and practical structure.

[0060] In this embodiment, the spring plate seat positioning mechanism 7 includes a mounting seat 71 and a positioning group 72 for positioning the four plates of the spring plate seat. The mounting seat 71 is slidably mounted on the frame 1, and the positioning group 72 is mounted on the mounting seat 71. During clamping, the mounting seat 71 is first slid to a predetermined position and locked, and then the four plates of the spring plate seat are mounted on the positioning group 72, and then the positioning group 72 is used to position the four plates on the axle housing to form a covering, and finally the four plates are welded in sequence. Compared with the traditional manual positioning method, the spring plate seat positioning mechanism 7 can adapt to axle bodies of different sizes through the movement of the mounting seat 71, ensuring that the four plates can be transported to the predetermined position; and then the positioning group 72 can accurately position the four plates at the installation position to prevent malfunction during welding.

[0061] In this embodiment, the positioning group 72 includes a top plate positioning member 721, a bottom plate positioning member 722 and a pair of side plate positioning members 723. The bottom plate positioning member 722 and the pair of side plate positioning members 723 are both mounted on the mounting seat 71. After the top plate is clamped, the top plate positioning member 721 is docked with the pair of side plate positioning members 723. In this structure, the top plate positioning member 721 realizes the positioning function of the top plate, the bottom plate positioning member 722 realizes the positioning function of the bottom plate, and the pair of side plate positioning members 723 realizes the positioning function of the two side plates. In this way, the four separated plates can be positioned on the axle housing from top to bottom and front to back for welding to form a spring plate seat of a covering structure.

[0062] In this embodiment, the side plate positioning member 723 includes a side support arm 7231, a side thrust cylinder 7232 and a side thrust positioning plate 7233. The side support arm 7231 is mounted on the mounting seat 71, the side thrust cylinder 7232 is mounted on the side support arm 7231, and the side thrust positioning plate 7233 is mounted on the output end of the side thrust cylinder 7232. In this structure, the side support arm 7231 provides a mounting and supporting foundation for the side thrust cylinder 7232, the fixed end of the side thrust cylinder 7232 is mounted on the side support arm 7231, and its output end drives the side thrust positioning plate 7233 to extend and retract, and the side plate is mounted on the side thrust positioning plate 7233. The extension and retraction of the side thrust positioning plate 7233 will drive the side plate to be accurately positioned on the axle housing.

[0063] In this embodiment, the side push positioning plate 7233 includes a side push block 72331 and a side magnetic block 72332. The side push block 72331 is installed at the output end of the side push cylinder 7232, and the side magnetic block 72332 is installed on the side push block 72331. In this structure, the side push block 72331 is mainly used to install the side magnetic block 72332 to form a surface contact to ensure uniform thrust; and the side magnetic block 72332 can realize the adsorption and positioning of the side plate, thereby improving the rapid loading and unloading effect of the side plate.

[0064] In this embodiment, the side push block 72331 is provided with a positioning pin 723311 for cooperating with the hole position on the side plate of the spring plate seat. The side plate has a native hole position, and the multiple positioning pins 723311 cooperate with the native hole position to prevent the side plate from moving incorrectly, further achieve a limiting effect, and ensure welding quality.

[0065] In this embodiment, the bottom plate positioning member 722 includes a lifting cylinder 7221 and a lifting positioning plate 7222. The lifting cylinder 7221 is mounted on the mounting seat 71, and the lifting positioning plate 7222 is mounted on the output end of the lifting cylinder 7221. In this structure, the lifting positioning plate 7222 is driven to rise and fall by the lifting cylinder 7221, and the bottom plate is mounted on the lifting positioning plate 7222. The lifting and falling of the lifting positioning plate 7222 will drive the side bottom plate to be accurately positioned on the axle housing.

[0066] In this embodiment, a guide sleeve 7223 is installed at the fixed end of the lifting cylinder 7221, and a guide rod 7224 is installed on the lifting positioning plate 7222 to cooperate with the guide sleeve 7223. In this structure, the stability and smoothness of the lifting process are ensured by the cooperation and guidance of the guide sleeve 7223 and the guide rod 7224.

[0067] In this embodiment, the lifting and positioning plate 7222 includes a pushing block 72221 and a top magnetic block 72222. The pushing block 72221 is installed at the output end of the lifting cylinder 7221, and the top magnetic block 72222 is installed on the pushing block 72221. In this structure, the pushing block 72221 is used to install the top magnetic block 72222 to form a surface contact to ensure uniform thrust; and the top magnetic block 72222 can realize the adsorption and positioning of the bottom plate, thereby improving the rapid loading and unloading effect of the bottom plate.

[0068] In this embodiment, the top magnetic block 72222 is provided with a top buckle 722221 and a top groove 722222 for cooperating with the bottom plate of the spring plate seat. The bottom plate has a native middle hole and a round convex, and the top buckle 722221 and the top groove 722222 are adapted to the shape thereof, so as to prevent the bottom plate from moving erroneously, further achieve a limiting effect, and ensure welding quality.

[0069] In this embodiment, the top plate positioning member 721 includes a lifting handle 7211 and a lifting magnetic block 7212, and the lifting magnetic block 7212 is installed on the lifting handle 7211. In this structure, the top plate is adsorbed on the lifting magnetic block 7212. When the bottom plate and the two side plates are positioned, the operator lifts the top plate through the lifting handle 7211, and makes the two side edges of the top plate butt against the two side plates, and then welds them. The structure is simple and reliable.

[0070] In this embodiment, the lifting magnetic block 7212 is provided with a bottom buckle 72121 and a bottom groove 72122 for matching with the top plate of the spring plate seat. The top plate has a native middle hole and a round convex, and the bottom buckle 72121 and the bottom groove 72122 are adapted to the top plate to prevent the top plate from moving erroneously, further achieving a limiting effect and ensuring welding quality.

[0071] In this embodiment, the air chamber support positioning mechanism 8 includes a fixed arm 81, a swing arm cylinder 82 and a chuck 83 for clamping the air chamber support. The fixed arm 81 is installed on the swing seat 3, the swing arm cylinder 82 is installed on the fixed arm 81, and the chuck 83 is installed at the output end of the swing arm cylinder 82. When clamping, the air chamber support is first installed on the chuck 83, and then the swing arm cylinder 82 is started. The swing arm cylinder 82 presses the air chamber support to the predetermined position of the axle body through the chuck 83, and then the air chamber support is welded to the axle body. Compared with the traditional manual positioning method, the positioning tooling realizes the clamping of the air chamber support through the chuck 83, and then the air chamber support is accurately pressed to the predetermined position of the axle body through the swing arm cylinder 82 to prevent malfunction during welding.

[0072] In this embodiment, the clamping head 83 includes a mounting platform 831 and a clamping platform 832. The mounting platform 831 is mounted on the output end of the swing arm cylinder 82, and the clamping platform 832 is mounted on the mounting platform 831. In this structure, the mounting platform 831 is connected to the output end of the swing arm cylinder 82 to provide a mounting base for the clamping platform 832. The clamping platform 832 is used to clamp the air chamber support, and its structure is simple and reliable.

[0073] In this embodiment, the mounting platform 831 includes an upper fixing block 8311, a lower fixing block 8312 and a pressure spring 8313. The upper fixing block 8311 is mounted on the output end of the swing arm cylinder 82. The lower fixing block 8312 is connected to the upper fixing block 8311 through the pressure spring 8313. The clamping platform 832 is mounted on the lower fixing block 8312. In this structure, when the upper fixing block 8311 is pressed down for positioning, the lower fixing block 8312 is further pressed by the pressure spring 8313, so that the clamping platform 832 generates further pressing force, which can ultimately improve the welding quality.

[0074] In this embodiment, a guide column 8314 is provided between the upper fixing block 8311 and the lower fixing block 8312. The guide column 8314 ensures stability and smoothness during downward pressing.

[0075] In this embodiment, the clamping platform 832 includes a clamping block 8321 and a pair of clamping plates 8322 disposed on the clamping block 8321. The clamping block 8321 has a concave cavity at the bottom. When clamping, the air chamber support is located in the concave cavity and is clamped by the pair of clamping plates 8322.

[0076] In this embodiment, a spring pin 8323 for tightening the air chamber support is installed on the clamp block 8321. When the air chamber support is clamped, the spring pin 8323 is avoided to ensure that the air chamber support can enter the concave cavity, and then the spring pin 8323 pops out to tighten the air chamber support, further improving the clamping force of the air chamber support.

[0077] In this embodiment, the clamping platform 832 is provided with a handle 84 for facilitating the resetting of the swing arm cylinder 82. When welding is completed, the operator pulls upwards through the handle 84 to reset the swing arm cylinder 82.

[0078] In this embodiment, the end positioning mechanism 9 includes a bearing platform 91, a side fixing platform 92 and a top pressing platform 93. The bearing platform 91 and the side fixing platform 92 are both mounted on the frame 1. The top pressing platform 93 is mounted on the side fixing platform 92 and cooperates with the bearing platform 91 to clamp the end of the axle body. In this structure, the clamping and positioning of the end of the axle body is achieved through the cooperation of the bearing platform 91 and the top pressing platform 93, and the structure is simple and reliable.

[0079] In this embodiment, a detachable V-shaped positioning platform 911 is provided on the top of the carrier platform 91. The V-shaped positioning platform 911 is provided as a detachable quick-change module, and different V-shaped positioning platforms 911 can adapt to different sizes of axle body ends, and the structure is simple and the application range is wide.

[0080] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any technician familiar with the art can make many possible changes and modifications to the technical solution of the present invention by using the technical content disclosed above without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention should fall within the scope of protection of the technical solution of the present invention.

Claims

1. A positioning tool for axle body welding, characterized in that: The invention comprises a frame (1), a fixed seat (2), a swing seat (3), a driving member (4), a transmission pair (5), a positioning plate (6) for positioning the axle body, a spring plate seat positioning mechanism (7), an air chamber support positioning mechanism (8) and an end positioning mechanism (9), wherein the fixed seat (2) is mounted on the frame (1), the swing seat (3) is hinged to the fixed seat (2), the positioning plate (6) is mounted on the swing seat (3), the driving member (4) is mounted on the fixed seat (2), and the transmission pair (5) is connected to the driving member (4) ) output end and a swing seat (3), the air chamber support positioning mechanism (8) is installed on the swing seat (3), the end positioning mechanism (9) is slidably mounted on the frame (1) to position the end of the axle body, the spring plate seat positioning mechanism (7) is slidably mounted on the frame (1), and the spring plate seat positioning mechanism (7) is located between the end positioning mechanism (9) and the air chamber support positioning mechanism (8); a plurality of card tables (61) for positioning the axle body are arranged around the positioning plate (6), and the driving member (4) is arranged as a motor.

2. The positioning tool for axle body welding according to claim 1, characterized in that: The fixed seat (2) includes a transverse base (21) and a vertical hinge seat (22) connected to each other, the swing seat (3) includes a transverse swing seat (31) and a vertical hinge ear (32) connected to each other, the vertical hinge ear (32) is hinged to the vertical hinge seat (22), the positioning plate (6) is installed on the transverse swing seat (31), the transverse base (21) is installed on the frame (1), the driving member (4) is installed on the transverse base (21), the transmission pair (5) connects the output end of the driving member (4) and the transverse swing seat (31), and the air chamber support positioning mechanism (8) is installed on the transverse swing seat (31).

3. The positioning tool for axle body welding according to claim 2, characterized in that: The transmission pair (5) comprises a driving gear (51) and a swing gear (52), wherein the driving gear (51) is connected to the output end of the driving member (4), and the swing gear (52) is fixed on the transverse swing seat (31) and meshes with the driving gear (51).

4. The positioning tool for axle body welding according to claim 3 is characterized in that: An angle sensor (10) is arranged on the transverse swing seat (31).

5. The positioning tool for axle body welding according to claim 1, characterized in that: The clamping platform (61) is provided with multiple steps (611) for matching axle bodies of different sizes.

6. The positioning tool for axle body welding according to any one of claims 1 to 4, characterized in that: The spring plate seat positioning mechanism (7) comprises a mounting seat (71) and a positioning group (72) for positioning four plate members of the spring plate seat; the mounting seat (71) is slidably mounted on the frame (1); and the positioning group (72) is mounted on the mounting seat (71).

7. The positioning tool for axle body welding according to claim 6, characterized in that: The positioning group (72) comprises a top plate positioning member (721), a bottom plate positioning member (722) and a pair of side plate positioning members (723); the bottom plate positioning member (722) and the pair of side plate positioning members (723) are both mounted on the mounting seat (71); and the top plate positioning member (721) is butted against the pair of side plate positioning members (723) after clamping the top plate.

8. The positioning tool for axle body welding according to claim 7, characterized in that: The side plate positioning member (723) includes a side support arm (7231), a side thrust cylinder (7232) and a side thrust positioning plate (7233); the side support arm (7231) is mounted on a mounting seat (71); the side thrust cylinder (7232) is mounted on the side support arm (7231); and the side thrust positioning plate (7233) is mounted on an output end of the side thrust cylinder (7232).

9. The positioning tool for axle body welding according to claim 8, characterized in that: The side push positioning plate (7233) comprises a side push block (72331) and a side magnetic block (72332), wherein the side push block (72331) is installed at the output end of the side push cylinder (7232), and the side magnetic block (72332) is installed on the side push block (72331).

10. The positioning tool for axle body welding according to claim 9, characterized in that: The side push block (72331) is provided with a positioning pin (723311) for matching with the hole position on the side plate of the spring plate seat.

11. The positioning tool for axle body welding according to any one of claims 7 to 10, characterized in that: The bottom plate positioning member (722) comprises a lifting cylinder (7221) and a lifting positioning plate (7222), wherein the lifting cylinder (7221) is mounted on the mounting seat (71), and the lifting positioning plate (7222) is mounted on the output end of the lifting cylinder (7221).

12. The positioning tool for axle body welding according to claim 11, characterized in that: A guide sleeve (7223) is installed at the fixed end of the lifting cylinder (7221), and a guide rod (7224) which is sleeved with the guide sleeve (7223) is installed on the lifting positioning plate (7222).

13. The positioning tool for axle body welding according to claim 12, characterized in that: The lifting and positioning plate (7222) comprises a pushing block (72221) and a top magnetic block (72222); the pushing block (72221) is installed at the output end of the lifting cylinder (7221); and the top magnetic block (72222) is installed on the pushing block (72221).

14. The positioning tool for axle body welding according to claim 13, characterized in that: The top magnetic attraction block (72222) is provided with a top buckle (722221) and a top groove (722222) for cooperating with the bottom plate of the spring plate seat.

15. The positioning tool for axle body welding according to any one of claims 7 to 10, characterized in that: The top plate positioning member (721) comprises a lifting handle (7211) and a lifting magnetic block (7212), and the lifting magnetic block (7212) is installed on the lifting handle (7211).

16. The positioning tool for axle body welding according to claim 15, characterized in that: The lifting magnetic block (7212) is provided with a bottom buckle (72121) and a bottom groove (72122) for cooperating with the top plate of the spring plate seat.

17. The positioning tool for axle body welding according to any one of claims 1 to 4, characterized in that: The air chamber support positioning mechanism (8) comprises a fixed arm (81), a swing arm cylinder (82) and a clamp (83) for clamping the air chamber support, wherein the fixed arm (81) is mounted on the swing seat (3), the swing arm cylinder (82) is mounted on the fixed arm (81), and the clamp (83) is mounted on the output end of the swing arm cylinder (82).

18. The positioning tool for axle body welding according to claim 17, characterized in that: The clamping head (83) comprises a mounting platform (831) and a clamping platform (832), wherein the mounting platform (831) is mounted on the output end of the swing arm cylinder (82), and the clamping platform (832) is mounted on the mounting platform (831).

19. The positioning tool for axle body welding according to claim 18, characterized in that: The mounting platform (831) comprises an upper fixing block (8311), a lower fixing block (8312) and a pressure spring (8313); the upper fixing block (8311) is mounted on the output end of the swing arm cylinder (82); the lower fixing block (8312) is connected to the upper fixing block (8311) via the pressure spring (8313); and the clamping platform (832) is mounted on the lower fixing block (8312).

20. The positioning tool for axle body welding according to claim 19, characterized in that: A guide column (8314) is provided between the upper fixing block (8311) and the lower fixing block (8312).

21. The positioning tool for axle body welding according to any one of claims 18 to 20, characterized in that: The clamping platform (832) includes a clamping block (8321) and a pair of clamping plates (8322) arranged on the clamping block (8321).

22. The positioning tool for axle body welding according to claim 21, characterized in that: The clamping block (8321) is provided with a spring pin (8323) for tightening the air chamber support.

23. The positioning tool for axle body welding according to any one of claims 18 to 20, characterized in that: The clamping platform (832) is provided with a handle (84) for facilitating the resetting of the swing arm cylinder (82).

24. The positioning tool for axle body welding according to any one of claims 1 to 4, characterized in that: The end positioning mechanism (9) comprises a bearing platform (91), a side fixing platform (92) and a top pressing platform (93); the bearing platform (91) and the side fixing platform (92) are both mounted on the frame (1); the top pressing platform (93) is mounted on the side fixing platform (92) and cooperates with the bearing platform (91) to clamp the end of the axle body.

25. The positioning tool for axle body welding according to claim 24, characterized in that: A detachable V-shaped positioning platform (911) is arranged on the top of the supporting platform (91).

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