A positioning tool for welding axle body

Abstract

The invention discloses a positioning tool for welding axle body, comprising a frame, a fixed seat, a swing seat, a driving member, a rolling support group, a sliding platform, 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 and the rolling support group are mounted on the frame, the sliding platform is slidably mounted on the fixed seat, the driving member is mounted on the fixed seat and connected to the sliding platform, the swing seat is rollingly connected to the rolling support group, the swing seat is movably connected to the sliding platform, the positioning plate is mounted on 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, comprising a frame, a fixed seat, a swing seat, a driving member, a rolling support group, a sliding table, 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 and the rolling support group are mounted on the frame, the sliding table is slidably mounted on the fixed seat, the driving member is mounted on the fixed seat and connected to the sliding table, the swing seat is rollingly connected to the rolling support group, the swing seat is movably connected to the sliding table, the positioning plate is mounted on 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 swing seat includes a support plate and arc-shaped swing plates arranged on both sides of the support plate. The arc-shaped surfaces of the arc-shaped swing plates are rollingly connected with corresponding rolling support groups. The support plate is movably connected with the sliding platform. The positioning plate is installed on the support plate.

[0009] A T-shaped plate is provided at the bottom of the support plate, a U-shaped hinge ear is provided at the top of the sliding platform, and the T-shaped plate is inserted into the U-shaped hinge ear and movably connected thereto.

[0010] The two ear plates of the U-shaped hinge ear are provided with vertical waist-shaped holes, and a pin shaft capable of vertical movement is installed in the vertical waist-shaped hole, and the T-shaped plate is connected to the pin shaft.

[0011] The rolling support group includes a plurality of support legs installed on the frame, a roller is installed on the top of each support leg, each support leg is evenly distributed at the bottom of the arc-shaped swing plate on the corresponding side, and the roller is in contact with the corresponding arc surface.

[0012] The rolling support group also includes a limiting support platform and a limiting roller installed on the limiting support platform, the arc-shaped swing plate is provided with an arc-shaped limiting hole, the limiting support platform is installed on the frame, and the limiting roller extends into the arc-shaped limiting hole.

[0013] The positioning plate is provided with a plurality of clamping platforms for positioning the axle body.

[0014] The driving member comprises a motor and a screw-nut transmission pair, wherein the motor is mounted on a fixed seat, and the screw-nut transmission pair is mounted on an output end of the motor and connected to the sliding platform.

[0015] 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.

[0016] 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.

[0017] 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.

[0018] 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.

[0019] 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.

[0020] 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.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] A guide column is provided between the upper fixing block and the lower fixing block.

[0030] The clamping platform comprises a clamping block and a pair of clamping plates arranged on the clamping block.

[0031] The clamping block is provided with a spring pin for tightening the air chamber support.

[0032] The clamping platform is provided with a handle for facilitating the resetting of the swing arm cylinder.

[0033] 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.

[0034] A detachable V-shaped positioning platform is arranged on the top of the bearing platform.

[0035] Compared with the prior art, the advantages of the present invention are:

[0036] The positioning fixture for welding the axle body of the present invention, when clamping, firstly starts the driving member to drive the sliding table to move according to the angle required to be formed between the spring plate seat and the axle housing, the sliding table will push the positioning plate, the positioning plate is constrained by the rolling support group, and swings on the rolling support group, so that the swing seat can swing to the required angle, 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 a 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

[0037] Figure 1 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 2 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 3 It is a partially enlarged structural schematic diagram of the installation state of the fixed seat and the swing seat in the positioning tooling used for axle body welding of the present invention.

[0040] Figure 4 It is a schematic diagram of the main structure of the installation state of the fixed seat and the swing seat in the positioning tooling for axle body welding of the present invention.

[0041] Figure 5 It is a side structural schematic diagram of the installation state of a fixed seat and a swing seat in a positioning tool for welding an axle body of the present invention.

[0042] Figure 6 It is a top structural schematic diagram of the installation state of the fixed seat and the swing seat in the positioning tooling for axle body welding of the present invention.

[0043] Figure 7It 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.

[0044] 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.

[0045] Fig. 9 The side view schematic diagram of the structure of the bottom plate positioning piece in the positioning tooling for axle body welding of the present invention.

[0046] Fig.10 It is a schematic diagram of the main structure of a top plate positioning member in a positioning tool for welding an axle body according to the present invention.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] The symbols in the figure represent:

[0052] 1. Frame; 2. Fixed seat; 3. Swing seat; 31. Support plate; 311. T-shaped plate; 32. Arc swing plate; 321. Arc limit hole; 4. Driving member; 41. Motor; 42. Screw nut transmission pair; 5. Rolling support group; 51. Support leg; 52. Roller; 53. Limit support platform; 54. Limit roller; 6. Sliding platform; 61. U-shaped hinge ear; 611. Vertical waist hole; 7. Fixed Positioning plate; 71, card table; 8, spring plate seat positioning mechanism; 81, mounting seat; 82, positioning group; 821, top plate positioning piece; 8211, lifting handle; 8212, lifting magnetic block; 82121, bottom buckle; 82122, bottom groove; 822, bottom plate positioning piece; 8221, lifting cylinder; 8222, lifting positioning plate; 82221, push block; 82222, top magnetic block; 822221, top buckle; 822222, top groove; 8223, guide sleeve; 8224, guide rod; 823, side plate positioning piece; 8231, side support arm; 8232, side push cylinder; 8233, side push positioning plate; 82331, side push block; 823311, positioning pin; 82332, side magnetic block; 9, air chamber support positioning mechanism; 91, fixed arm; 92, swing arm air cylinder Cylinder; 93, chuck; 931, mounting table; 9311, upper fixing block; 9312, lower fixing block; 9313, pressure spring; 9314, guide column; 932, clamping table; 9321, clamping block; 9322, clamping plate; 9323, spring pin; 94, handle; 10, end positioning mechanism; 101, bearing table; 1011, V-shaped positioning table; 102, side fixing table; 103, top pressure table. DETAILED DESCRIPTION

[0053] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0054] Figures 1 to 14An embodiment of the positioning tooling for axle body welding of the present invention is shown, comprising a frame 1, a fixed seat 2, a swing seat 3, a driving member 4, a rolling support group 5, a sliding table 6, a positioning plate 7 for positioning the axle body, a spring plate seat positioning mechanism 8, an air chamber support positioning mechanism 9 and an end positioning mechanism 10, the fixed seat 2 and the rolling support group 5 are installed on the frame 1, the sliding table 6 is slidably mounted on the fixed seat 2, the driving member 4 is installed on the fixed seat 2 and connected to the sliding table 6, the swing seat 3 is rollingly connected to the rolling support group 5, the swing seat 3 is movably connected to the sliding table 6, the positioning plate 7 is installed on the swing seat 3, the air chamber support positioning mechanism 9 is installed on the swing seat 3, the end positioning mechanism 10 is slidably mounted on the frame 1 to position the end of the axle body, the spring plate seat positioning mechanism 8 is slidably mounted on the frame 1, and the spring plate seat positioning mechanism 8 is located between the end positioning mechanism 10 and the air chamber support positioning mechanism 9. During clamping, first, according to the angle required to be formed between the spring plate seat and the axle housing, the driving member 4 is started to drive the sliding table 6 to move, and the sliding table 6 will push the positioning plate 7, and the positioning plate 7 is constrained by the rolling support group 5 and swings on the rolling support group 5, so that the swing seat 3 swings to the required angle. At this time, the positioning plate 7 and the air chamber support positioning mechanism 9 will form the adjusted angle, and then the axle body is positioned on the positioning plate 7, and the axle body is also deflected to the adjusted angle; the end positioning mechanisms 10 at both ends are used to adjust the axle body The end is clamped and positioned; then the four plates of the spring plate seat are installed on the spring plate seat positioning mechanism 8, the spring plate seat positioning mechanism 8 slides to the predetermined position and is locked, and then the spring plate seat positioning mechanism 8 is used to position the four plates on the axle housing to form a coating, and finally the four plates are welded in sequence; finally, the air chamber support is installed on the air chamber support positioning mechanism 9, and then the air chamber support positioning mechanism 9 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 adjusts the angle of the swing seat 3 and the positioning plate 7 in advance, so that the angle deflection is formed when the axle body is positioned, and then the spring plate seat positioning mechanism 8 and the air chamber support positioning mechanism 9 are used to respectively realize the precise positioning of the spring plate seat and the air chamber support, so as to ensure that the spring plate seat and the axle housing form an angle, and realize the precise angle positioning. The overall structure is simple and reliable, which greatly improves the welding quality and welding efficiency, and has a wide range of applications.

[0055] In this embodiment, the swing seat 3 includes a support plate 31 and arc-shaped swing plates 32 arranged on both sides of the support plate 31. The arc-shaped surface of the arc-shaped swing plate 32 is rollingly connected with the corresponding rolling support group 5. The support plate 31 is movably connected with the sliding platform 6. The positioning plate 7 is installed on the support plate 31. In this structure, the support plate 31 is used to install the positioning plate 7. The arc-shaped swing plates 32 on both sides are affected by the sliding platform 6 and swing to a desired angle on the rolling support group 5. Its structure is simple and ingenious.

[0056] In this embodiment, a T-shaped plate 311 is provided at the bottom of the support plate 31, a U-shaped hinge ear 61 is provided at the top of the sliding platform 6, and the T-shaped plate 311 is inserted into and movably connected to the U-shaped hinge ear 61. In this structure, the swing function of the arc swing plate 32 is realized through the movably connected U-shaped hinge ear 61 and the T-shaped plate 311.

[0057] In this embodiment, vertical waist-shaped holes 611 are provided on the two ear plates of the U-shaped hinge ear 61, and a pin shaft capable of vertical movement is installed in the vertical waist-shaped hole 611, and the T-shaped plate 311 is connected to the pin shaft. Since the sliding platform 6 is linearly operated and constrained by the rolling support group 5, the swing of the arc-shaped swing plate 32 can be decomposed into translation and ascending motion, so the pin shaft can move vertically in the vertical waist-shaped hole 61, and finally the swing of the arc-shaped swing plate 32 is formed, and its structure is simple and the design is ingenious.

[0058] In this embodiment, the rolling support group 5 includes a plurality of support legs 51 mounted on the frame 1, and a roller 52 is mounted on the top of each support leg 51. Each support leg 51 is evenly distributed at the bottom of the arc-shaped swing plate 32 on the corresponding side, and the roller 52 is in contact with the corresponding arc surface. In this structure, when the arc-shaped swing plate 32 is subjected to thrust, it will swing on the roller 52, ensuring the stability and smoothness of the swing.

[0059] In this embodiment, the rolling support group 5 further includes a limiting support platform 53 and a limiting roller 54 mounted on the limiting support platform 53. An arc-shaped limiting hole 321 is provided on the arc-shaped swing plate 32. The limiting support platform 53 is mounted on the frame 1. The limiting roller 54 extends into the arc-shaped limiting hole 321. In this structure, the limiting function of the limit position of the arc-shaped swing plate 32 is realized through the constraints of the limiting roller 54 and the arc-shaped limiting hole 321, which plays a certain protective role.

[0060] In this embodiment, a plurality of clamping platforms 71 for positioning the axle body are arranged on the positioning plate 7. The clamping platforms 71 are used to cooperate with the axle body for positioning to prevent the axle body from malfunctioning during welding.

[0061] In this embodiment, the driving member 4 includes a motor 41 and a screw nut transmission pair 42. The motor 41 is mounted on the fixed seat 2, and the screw nut transmission pair 42 is mounted on the output end of the motor 41 and connected to the sliding table 6. In this structure, the rotational motion of the motor 41 is converted into the linear motion of the sliding table 6 through the screw nut transmission pair 42. The linear motion of the sliding table 6 is constrained by the rolling support group 5 and the cooperation of the pin and the vertical waist hole 61, and finally forms the swing of the arc swing plate 32.

[0062] In this embodiment, the spring plate seat positioning mechanism 8 includes a mounting seat 81 and a positioning group 82 for positioning the four plates of the spring plate seat. The mounting seat 81 is slidably mounted on the frame 1, and the positioning group 82 is mounted on the mounting seat 81. During clamping, the mounting seat 81 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 82, and then the positioning group 82 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 8 can adapt to axle bodies of different sizes through the movement of the mounting seat 81, ensuring that the four plates can be transported to the predetermined position; and then the positioning group 82 can accurately position the four plates at the installation position to prevent malfunction during welding.

[0063] In this embodiment, the positioning group 82 includes a top plate positioning member 821, a bottom plate positioning member 822 and a pair of side plate positioning members 823. The bottom plate positioning member 822 and the pair of side plate positioning members 823 are both mounted on the mounting seat 81. After the top plate is clamped, the top plate positioning member 821 is docked with the pair of side plate positioning members 823. In this structure, the top plate positioning member 821 realizes the positioning function of the top plate, the bottom plate positioning member 822 realizes the positioning function of the bottom plate, and the pair of side plate positioning members 823 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.

[0064] In this embodiment, the side plate positioning member 823 includes a side support arm 8231, a side thrust cylinder 8232 and a side thrust positioning plate 8233. The side support arm 8231 is mounted on the mounting seat 81, the side thrust cylinder 8232 is mounted on the side support arm 8231, and the side thrust positioning plate 8233 is mounted on the output end of the side thrust cylinder 8232. In this structure, the side support arm 8231 provides a mounting and supporting foundation for the side thrust cylinder 8232, the fixed end of the side thrust cylinder 8232 is mounted on the side support arm 8231, and its output end drives the side thrust positioning plate 8233 to extend and retract, and the side plate is mounted on the side thrust positioning plate 8233. The extension and retraction of the side thrust positioning plate 8233 will drive the side plate to be accurately positioned on the axle housing.

[0065] In this embodiment, the side push positioning plate 8233 includes a side push block 82331 and a side magnetic block 82332. The side push block 82331 is installed at the output end of the side push cylinder 8232, and the side magnetic block 82332 is installed on the side push block 82331. In this structure, the side push block 82331 is mainly used to install the side magnetic block 82332 to form a surface contact to ensure uniform thrust; and the side magnetic block 82332 can realize the adsorption and positioning of the side plate, thereby improving the rapid loading and unloading effect of the side plate.

[0066] In this embodiment, the side push block 82331 is provided with a positioning pin 823311 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 plurality of positioning pins 823311 cooperate with the native hole position to prevent the side plate from moving incorrectly, further achieve a limiting effect, and ensure welding quality.

[0067] In this embodiment, the bottom plate positioning member 822 includes a lifting cylinder 8221 and a lifting positioning plate 8222. The lifting cylinder 8221 is mounted on the mounting seat 81, and the lifting positioning plate 8222 is mounted on the output end of the lifting cylinder 8221. In this structure, the lifting positioning plate 8222 is driven to rise and fall by the lifting cylinder 8221, and the bottom plate is mounted on the lifting positioning plate 8222. The lifting and falling of the lifting positioning plate 8222 will drive the side bottom plate to be accurately positioned on the axle housing.

[0068] In this embodiment, a guide sleeve 8223 is installed at the fixed end of the lifting cylinder 8221, and a guide rod 8224 is installed on the lifting positioning plate 8222 to be sleeved with the guide sleeve 8223. In this structure, the stability and smoothness of the lifting process are ensured by the cooperation and guidance of the guide sleeve 8223 and the guide rod 8224.

[0069] In this embodiment, the lifting and positioning plate 8222 includes a pushing block 82221 and a top magnetic block 82222. The pushing block 82221 is installed at the output end of the lifting cylinder 8221, and the top magnetic block 82222 is installed on the pushing block 82221. In this structure, the pushing block 82221 is used to install the top magnetic block 82222 to form a surface contact to ensure uniform thrust; and the top magnetic block 82222 can realize the adsorption and positioning of the bottom plate, thereby improving the rapid loading and unloading effect of the bottom plate.

[0070] In this embodiment, the top magnetic block 82222 is provided with a top buckle 822221 and a top groove 822222 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 822221 and the top groove 822222 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.

[0071] In this embodiment, the top plate positioning member 821 includes a lifting handle 8211 and a lifting magnetic block 8212, and the lifting magnetic block 8212 is installed on the lifting handle 8211. In this structure, the top plate is adsorbed on the lifting magnetic block 8212. When the bottom plate and the two side plates are positioned, the operator lifts the top plate through the lifting handle 8211, 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.

[0072] In this embodiment, the lifting magnetic block 8212 is provided with a bottom buckle 82121 and a bottom groove 82122 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 82121 and the bottom groove 82122 are adapted to the shape thereof, so as to prevent the top plate from moving erroneously, further achieve a limiting effect, and ensure welding quality.

[0073] In this embodiment, the air chamber support positioning mechanism 9 includes a fixed arm 91, a swing arm cylinder 92 and a chuck 93 for clamping the air chamber support. The fixed arm 91 is installed on the swing seat 3, the swing arm cylinder 92 is installed on the fixed arm 91, and the chuck 93 is installed at the output end of the swing arm cylinder 92. When clamping, the air chamber support is first installed on the chuck 93, and then the swing arm cylinder 92 is started. The swing arm cylinder 92 presses the air chamber support to the predetermined position of the axle body through the chuck 93, 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 93, and then the air chamber support is accurately pressed to the predetermined position of the axle body through the swing arm cylinder 92 to prevent malfunction during welding.

[0074] In this embodiment, the clamping head 93 includes a mounting platform 931 and a clamping platform 932. The mounting platform 931 is mounted on the output end of the swing arm cylinder 92, and the clamping platform 932 is mounted on the mounting platform 931. In this structure, the mounting platform 931 is connected to the output end of the swing arm cylinder 92 to provide a mounting base for the clamping platform 932. The clamping platform 932 is used to clamp the air chamber support, and its structure is simple and reliable.

[0075] In this embodiment, the mounting platform 931 includes an upper fixing block 9311, a lower fixing block 9312 and a pressure spring 9313. The upper fixing block 9311 is mounted on the output end of the swing arm cylinder 92. The lower fixing block 9312 is connected to the upper fixing block 9311 through the pressure spring 9313. The clamping platform 932 is mounted on the lower fixing block 9312. In this structure, when pressed down for positioning, the upper fixing block 9311 will further press the lower fixing block 9312 through the pressure spring 9313, so that the clamping platform 932 generates further pressing force, which can ultimately improve the welding quality.

[0076] In this embodiment, a guide column 9314 is provided between the upper fixing block 9311 and the lower fixing block 9312. The guide column 9314 ensures stability and smoothness during downward pressing.

[0077] In this embodiment, the clamping platform 932 includes a clamping block 9321 and a pair of clamping plates 9322 disposed on the clamping block 9321. The clamping block 9321 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 9322.

[0078] In this embodiment, a spring pin 9323 for tightening the air chamber support is installed on the clamp block 9321. When the air chamber support is clamped, the spring pin 9323 is avoided to ensure that the air chamber support can enter the concave cavity, and then the spring pin 9323 pops out to tighten the air chamber support, further improving the clamping force of the air chamber support.

[0079] In this embodiment, the clamping platform 932 is provided with a handle 94 for facilitating the resetting of the swing arm cylinder 92. When welding is completed, the operator pulls upwards through the handle 94 to reset the swing arm cylinder 92.

[0080] In this embodiment, the end positioning mechanism 10 includes a bearing platform 101, a side fixing platform 102 and a top pressing platform 103. The bearing platform 101 and the side fixing platform 102 are both mounted on the frame 1. The top pressing platform 103 is mounted on the side fixing platform 102 and cooperates with the bearing platform 101 to clamp the end of the axle body. In this structure, the end of the axle body is clamped and positioned by the cooperation of the bearing platform 101 and the top pressing platform 103, and the structure is simple and reliable.

[0081] In this embodiment, a detachable V-shaped positioning platform 1011 is provided on the top of the carrier 101. The V-shaped positioning platform 1011 is provided as a detachable quick-change module, and different V-shaped positioning platforms 1011 can adapt to different sizes of axle body ends, and have a simple structure and a wide range of applications.

[0082] 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 rolling support group (5), a sliding platform (6), a positioning plate (7) for positioning the axle body, a spring plate seat positioning mechanism (8), an air chamber support positioning mechanism (9) and an end positioning mechanism (10), wherein the fixed seat (2) and the rolling support group (5) are mounted on the frame (1), the sliding platform (6) is slidably mounted on the fixed seat (2), the driving member (4) is mounted on the fixed seat (2) and connected to the sliding platform (6), the swing seat (3) is rollingly connected to the rolling support group (5), the swing seat (3) is movably connected to the sliding platform (6), the positioning plate (7) is mounted on the swing seat (3), the air chamber support positioning mechanism (9) is slidably mounted on the fixed seat (2), the driving member (4) is mounted on the fixed seat (2) and connected to the sliding platform (6), the swing seat (3) is rollingly connected to the rolling support group (5), the swing seat (3) is movably connected to the sliding platform (6), the positioning plate (7) is mounted on the swing seat (3), the air chamber support positioning mechanism (9) is slidably mounted on the fixed seat (2), the driving member (4) is mounted on the fixed seat (2) and connected to the sliding platform (6), The mechanism (9) is installed on the swing seat (3); the end positioning mechanism (10) is slidably mounted on the frame (1) to position the end of the axle body; the spring plate seat positioning mechanism (8) is slidably mounted on the frame (1), and the spring plate seat positioning mechanism (8) is located between the end positioning mechanism (10) and the air chamber support positioning mechanism (9); the rolling support group (5) comprises a plurality of support legs (51) installed on the frame (1); a roller (52) is installed on the top of each support leg (51); each support leg (51) is evenly distributed at the bottom of the arc-shaped swing plate (32) on the corresponding side, and the roller (52) contacts the corresponding arc surface; and a plurality of card tables (71) for positioning the axle body are arranged on the positioning plate (7).

2. The positioning tool for axle body welding according to claim 1, characterized in that: The swing seat (3) comprises a support plate (31) and arc-shaped swing plates (32) arranged on both sides of the support plate (31); the arc-shaped surfaces of the arc-shaped swing plates (32) are rollingly connected to the corresponding rolling support groups (5); the support plate (31) is movably connected to the sliding platform (6); and the positioning plate (7) is mounted on the support plate (31).

3. The positioning tool for axle body welding according to claim 2, characterized in that: A T-shaped plate (311) is provided at the bottom of the support plate (31), a U-shaped hinge ear (61) is provided at the top of the sliding platform (6), and the T-shaped plate (311) is inserted into the U-shaped hinge ear (61) and movably connected thereto.

4. The positioning tool for axle body welding according to claim 3 is characterized in that: The two ear plates of the U-shaped hinge ear (61) are provided with vertical waist-shaped holes (611), and a pin shaft capable of vertical movement is installed in the vertical waist-shaped hole (611), and the T-shaped plate (311) is connected to the pin shaft.

5. The positioning tool for axle body welding according to claim 1, characterized in that: The rolling support group (5) further comprises a limiting support platform (53) and a limiting roller (54) mounted on the limiting support platform (53); an arc-shaped limiting hole (321) is provided on the arc-shaped swing plate (32); the limiting support platform (53) is mounted on the frame (1); and the limiting roller (54) extends into the arc-shaped limiting hole (321).

6. The positioning tool for axle body welding according to any one of claims 2 to 4, characterized in that: The driving member (4) comprises a motor (41) and a screw-nut transmission pair (42); the motor (41) is mounted on a fixed seat (2); the screw-nut transmission pair (42) is mounted on an output end of the motor (41) and is connected to a sliding platform (6).

7. 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 (8) comprises a mounting seat (81) and a positioning group (82) for positioning four plate members of the spring plate seat; the mounting seat (81) is slidably mounted on the frame (1); and the positioning group (82) is mounted on the mounting seat (81).

8. The positioning tool for axle body welding according to claim 7, characterized in that: The positioning group (82) comprises a top plate positioning member (821), a bottom plate positioning member (822) and a pair of side plate positioning members (823); the bottom plate positioning member (822) and the pair of side plate positioning members (823) are both mounted on the mounting seat (81); and the top plate positioning member (821) is butted against the pair of side plate positioning members (823) after clamping the top plate.

9. The positioning tool for axle body welding according to claim 8, characterized in that: The side plate positioning member (823) includes a side support arm (8231), a side thrust cylinder (8232) and a side thrust positioning plate (8233); the side support arm (8231) is mounted on a mounting seat (81); the side thrust cylinder (8232) is mounted on the side support arm (8231); and the side thrust positioning plate (8233) is mounted on an output end of the side thrust cylinder (8232).

10. The positioning tool for axle body welding according to claim 9, characterized in that: The side push positioning plate (8233) comprises a side push block (82331) and a side magnetic block (82332), wherein the side push block (82331) is installed at the output end of the side push cylinder (8232), and the side magnetic block (82332) is installed on the side push block (82331).

11. The positioning tool for axle body welding according to claim 10, characterized in that: The side push block (82331) is provided with a positioning pin (823311) for cooperating with a hole on the side plate of the spring plate seat.

12. The positioning tool for axle body welding according to any one of claims 8 to 11, characterized in that: The bottom plate positioning member (822) comprises a lifting cylinder (8221) and a lifting positioning plate (8222), wherein the lifting cylinder (8221) is mounted on a mounting seat (81), and the lifting positioning plate (8222) is mounted on an output end of the lifting cylinder (8221).

13. The positioning tool for axle body welding according to claim 12, characterized in that: A guide sleeve (8223) is installed at the fixed end of the lifting cylinder (8221), and a guide rod (8224) which is sleeved with the guide sleeve (8223) is installed on the lifting positioning plate (8222).

14. The positioning tool for axle body welding according to claim 13, characterized in that: The lifting and positioning plate (8222) comprises a pushing block (82221) and a top magnetic block (82222); the pushing block (82221) is installed at the output end of the lifting cylinder (8221); and the top magnetic block (82222) is installed on the pushing block (82221).

15. The positioning tool for axle body welding according to claim 14, characterized in that: The top magnetic attraction block (82222) is provided with a top buckle (822221) and a top groove (822222) for cooperating with the bottom plate of the spring plate seat.

16. The positioning tool for axle body welding according to any one of claims 8 to 11, characterized in that: The top plate positioning member (821) comprises a lifting handle (8211) and a lifting magnetic block (8212), and the lifting magnetic block (8212) is installed on the lifting handle (8211).

17. The positioning tool for axle body welding according to claim 16, characterized in that: The lifting magnetic block (8212) is provided with a bottom buckle (82121) and a bottom groove (82122) for cooperating with the top plate of the spring plate seat.

18. 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 (9) comprises a fixed arm (91), a swing arm cylinder (92) and a clamp (93) for clamping the air chamber support, wherein the fixed arm (91) is mounted on the swing seat (3), the swing arm cylinder (92) is mounted on the fixed arm (91), and the clamp (93) is mounted on the output end of the swing arm cylinder (92).

19. The positioning tool for axle body welding according to claim 18, characterized in that: The clamping head (93) comprises a mounting platform (931) and a clamping platform (932), wherein the mounting platform (931) is mounted on the output end of the swing arm cylinder (92), and the clamping platform (932) is mounted on the mounting platform (931).

20. The positioning tool for axle body welding according to claim 19, characterized in that: The mounting platform (931) comprises an upper fixing block (9311), a lower fixing block (9312) and a pressure spring (9313); the upper fixing block (9311) is mounted on the output end of the swing arm cylinder (92); the lower fixing block (9312) is connected to the upper fixing block (9311) via the pressure spring (9313); and the clamping platform (932) is mounted on the lower fixing block (9312).

21. The positioning tool for axle body welding according to claim 20, characterized in that: A guide column (9314) is provided between the upper fixing block (9311) and the lower fixing block (9312).

22. The positioning tool for axle body welding according to any one of claims 19 to 21, characterized in that: The clamping platform (932) includes a clamping block (9321) and a pair of clamping plates (9322) arranged on the clamping block (9321).

23. The positioning tool for axle body welding according to claim 22, characterized in that: The clamping block (9321) is provided with a spring pin (9323) for tightening the air chamber support.

24. The positioning tool for axle body welding according to any one of claims 19 to 21, characterized in that: The clamping platform (932) is provided with a handle (94) for facilitating the resetting of the swing arm cylinder (92).

25. The positioning tool for axle body welding according to any one of claims 1 to 4, characterized in that: The end positioning mechanism (10) comprises a bearing platform (101), a side fixing platform (102) and a pressing platform (103); the bearing platform (101) and the side fixing platform (102) are both mounted on the frame (1); the pressing platform (103) is mounted on the side fixing platform (102) and cooperates with the bearing platform (101) to clamp the end of the axle body.

26. The positioning tool for axle body welding according to claim 25, characterized in that: A detachable V-shaped positioning platform (1011) is arranged on the top of the supporting platform (101).

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