Adjustable positioning fixture for welding axle body and air chamber support

Abstract

The present invention discloses an adjustable positioning tool for welding axle body and air chamber support, comprising a frame, a fixed seat, a swing seat, a driving member, a transmission pair, a positioning plate for positioning the axle body, a fixed arm, a swing arm cylinder and a chuck for clamping the air chamber support, 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 fixed arm is mounted on the swing seat, the swing arm cylinder is mounted on the fixed arm, and the chuck is mounted on the output end of the swing arm cylinder. The positioning tool has the advantages of simple and reliable structure, can realize accurate angle positioning, and can improve welding quality and welding efficiency.

Description

Technical Field

[0001] The invention mainly relates to a welding technology of a vehicle axle body, and in particular to an adjustable positioning tool used for welding a vehicle axle body and an air chamber support. 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 an adjustable positioning tool for welding the axle body and the air chamber support, which has a simple and reliable structure, can achieve precise angle positioning, and can improve welding quality and welding efficiency.

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

[0006] An adjustable positioning tool for welding an axle body and an air chamber support, comprising a frame, a fixed seat, a swing seat, a driving member, a transmission pair, a positioning plate for positioning the axle body, a fixed arm, a swing arm cylinder and a chuck for clamping the air chamber support, 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 fixed arm is mounted on the swing seat, the swing arm cylinder is mounted on the fixed arm, and the chuck is mounted on the output end of the swing arm cylinder.

[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 fixed arm 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 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.

[0015] 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.

[0016] A guide column is provided between the upper fixing block and the lower fixing block.

[0017] The clamping platform comprises a clamping block and a pair of clamping plates arranged on the clamping block.

[0018] The clamping block is provided with a spring pin for tightening the air chamber support.

[0019] The clamping platform is provided with a handle for facilitating the resetting of the swing arm cylinder.

[0020] Compared with the prior art, the advantages of the present invention are:

[0021] The adjustable positioning tooling for welding the axle body and the air chamber support 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 fixed arm will both form the adjusted angle, and then the axle body is positioned on the positioning plate, the axle body is also deflected to the adjusted angle, and then the four plates of the spring plate seat are surrounded on the axle housing and welded in sequence to form a covering structure; finally, the air chamber support is installed on the chuck, and then the swing arm cylinder is started, the swing arm cylinder presses the air chamber support to the predetermined position of the axle body through the chuck, and then the air chamber support is welded to the axle body. Compared with the traditional manual positioning method, the positioning tooling pre-adjusts the angle of the swing seat and the positioning plate, so that the angle deflection is formed when the axle body is positioned, 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, which greatly improves the welding quality and efficiency. At the same time, the positioning tooling clamps the air chamber support through the chuck, and then uses the swing arm cylinder to accurately press the air chamber support to the predetermined position of the axle body to prevent false movement during welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of an adjustable positioning tool used for welding an axle body and an air chamber support (assembled and used state).

[0023] Figure 2 It is a schematic diagram of the main structure of an adjustable positioning tool used for welding an axle body and an air chamber support (assembled and used state).

[0024] Figure 3 It is a top view structural schematic diagram of an adjustable positioning tooling used for welding an axle body and an air chamber support (assembled use state).

[0025] Figure 4 It is a schematic diagram of the assembly main structure of a fixed seat and a swing seat in an adjustable positioning tooling used for welding an axle body and an air chamber support.

[0026] Figure 5 It is a schematic diagram of the assembly side structure of a fixed seat and a swing seat in an adjustable positioning tooling used for welding an axle body and an air chamber support.

[0027] Figure 6 It is a schematic diagram of the assembly three-dimensional structure of a fixed seat and a swing seat in an adjustable positioning tooling used for welding an axle body and an air chamber support.

[0028] Figure 7 It is a schematic diagram of the assembly three-dimensional structure of the fixed arm and the swing arm cylinder in the adjustable positioning tooling used for welding the axle body and the air chamber support.

[0029] Figure 8It is a schematic diagram of the main assembly structure of the fixed arm and the swing arm cylinder in the adjustable positioning tooling used for welding the axle body and the air chamber support.

[0030] The symbols in the figure represent:

[0031] 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. Clamping table; 611. Step; 7. Fixed arm; 8. Swing arm cylinder; 9. Chuck; 91. Mounting table; 911. Upper fixed block; 912. Lower fixed block; 913. Pressure spring; 914. Guide column; 92. Clamping table; 921. Clamping block; 922. Clamping plate; 923. Spring pin; 10. Angle sensor; 11. Handle. DETAILED DESCRIPTION

[0032] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] Figures 1 to 8An embodiment of the adjustable positioning tooling for welding an axle body and an air chamber support 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 fixed arm 7, a swing arm cylinder 8 and a chuck 9 for clamping the air chamber support, 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 fixed arm 7 is mounted on the swing seat 3, the swing arm cylinder 8 is mounted on the fixed arm 7, and the chuck 9 is mounted on the output end of the swing arm cylinder 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 around the hinge to the required angle. At this time, the positioning plate 6 and the fixed arm 7 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, and then the four plates of the spring plate seat are surrounded on the axle housing and welded in sequence to form a covering structure; finally, the air chamber support is installed on the chuck 9, and then the swing arm cylinder 8 is started. The swing arm cylinder 8 presses the air chamber support to the predetermined position of the axle body through the chuck 9, and then the air chamber support is welded to the axle body. Compared with the traditional manual positioning method, the positioning tooling pre-adjusts the angle of the swing seat 3 and the positioning plate 6, so that the angle deflection is formed when the axle body is positioned, ensuring that the spring plate seat and the axle housing finally form an angle, realizing precise angle positioning, and the overall structure is simple and reliable, which greatly improves the welding quality and welding efficiency; at the same time, the positioning tooling clamps the air chamber support through the chuck 9, and then accurately presses the air chamber support to the predetermined position of the axle body through the swing arm cylinder 8 to prevent malfunction during welding.

[0034] 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 fixed arm 7 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] In this embodiment, the driving member 4 is configured as a motor, which has a simple and practical structure.

[0040] In this embodiment, the chuck 9 includes a mounting platform 91 and a clamping platform 92. The mounting platform 91 is mounted on the output end of the swing arm cylinder 8, and the clamping platform 92 is mounted on the mounting platform 91. In this structure, the mounting platform 91 is connected to the output end of the swing arm cylinder 8 to provide a mounting base for the clamping platform 92. The clamping platform 92 is used to clamp the air chamber support, and its structure is simple and reliable.

[0041] In this embodiment, the mounting platform 91 includes an upper fixing block 911, a lower fixing block 912 and a pressure spring 913. The upper fixing block 911 is mounted on the output end of the swing arm cylinder 8, the lower fixing block 912 is connected to the upper fixing block 911 through the pressure spring 913, and the clamping platform 92 is mounted on the lower fixing block 912. In this structure, when pressed down for positioning, the upper fixing block 911 will further press the lower fixing block 912 through the pressure spring 913, so that the clamping platform 92 generates further pressing force, which can ultimately improve the welding quality.

[0042] In this embodiment, a guide column 914 is provided between the upper fixing block 911 and the lower fixing block 912. The guide column 914 ensures stability and smoothness during downward pressing.

[0043] In this embodiment, the clamping platform 92 includes a clamping block 921 and a pair of clamping plates 922 disposed on the clamping block 921. The clamping block 921 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 922.

[0044] In this embodiment, a spring pin 923 for tightening the air chamber support is installed on the clamping block 921. When the air chamber support is clamped, the spring pin 923 is avoided to ensure that the air chamber support can enter the concave cavity, and then the spring pin 923 pops out to tighten the air chamber support, further improving the clamping force of the air chamber support.

[0045] In this embodiment, the clamping platform 92 is equipped with a handle 11 that is convenient for resetting the swing arm cylinder 8. After welding is completed, the operator pulls upwards through the handle 11 to reset the swing arm cylinder 8.

[0046] 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. An adjustable positioning tool for welding an axle body and an air chamber support, 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 fixed arm (7), a swing arm cylinder (8) and a chuck (9) for clamping the air chamber support, 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), the transmission pair (5) connects the output end of the driving member (4) and the swing seat (3), the fixed arm (7) is mounted on the swing seat (3), the swing arm cylinder (8) is mounted on the fixed arm (7), and the chuck (9) is mounted on the output end of the swing arm cylinder (8); a plurality of clamping 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 adjustable positioning tool for welding the axle body and the air chamber support 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 fixed arm (7) is installed on the transverse swing seat (31).

3. The adjustable positioning tool for welding the axle body and the air chamber support according to claim 2 is 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 adjustable positioning tool for welding the axle body and the air chamber support according to claim 3 is characterized in that: An angle sensor (10) is arranged on the transverse swing seat (31).

5. The adjustable positioning tool for welding the axle body and the air chamber support 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 adjustable positioning tool for welding the axle body and the air chamber support according to any one of claims 1 to 4, characterized in that: The clamping head (9) comprises a mounting platform (91) and a clamping platform (92); the mounting platform (91) is mounted on the output end of the swing arm cylinder (8); and the clamping platform (92) is mounted on the mounting platform (91).

7. The adjustable positioning tool for welding the axle body and the air chamber support according to claim 6, characterized in that: The mounting platform (91) comprises an upper fixing block (911), a lower fixing block (912) and a pressure spring (913); the upper fixing block (911) is mounted on the output end of the swing arm cylinder (8); the lower fixing block (912) is connected to the upper fixing block (911) via the pressure spring (913); and the clamping platform (92) is mounted on the lower fixing block (912).

8. The adjustable positioning tool for welding the axle body and the air chamber support according to claim 7, characterized in that: A guide column (914) is provided between the upper fixing block (911) and the lower fixing block (912).

9. The adjustable positioning tool for welding the axle body and the air chamber support according to claim 7 or 8, characterized in that: The clamping platform (92) comprises a clamping block (921) and a pair of clamping plates (922) arranged on the clamping block (921).

10. The adjustable positioning tool for welding the axle body and the air chamber support according to claim 9, characterized in that: The clamping block (921) is provided with a spring pin (923) for tightening the air chamber support.

11. The adjustable positioning tool for welding the axle body and the air chamber support according to claim 7 or 8, characterized in that: The clamping platform (92) is provided with a handle (11) for facilitating the resetting of the swing arm cylinder (8).

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