Automobile rear axle welding fixture

Abstract

The utility model relates to the field of welding of automobile rear axles, and provides an automobile rear axle welding clamp which comprises a supporting frame. The supporting frame comprises a welding platform, a first supporting frame, a second supporting frame, a supporting plate, a positioning groove and a rotating air cylinder. The first supporting frame and the second supporting frame are symmetrically installed on the supporting plate, the first supporting frame is in butt joint with the second supporting frame, and the welding platform is installed on the first supporting frame and the second supporting frame; by arranging the supporting frame capable of adjusting the angle, welding is more flexible, and the welding efficiency can be effectively improved; and meanwhile, the first turnover mechanism, the second turnover mechanism and the third turnover mechanism are arranged on the welding platform, the workpiece can be driven to turn over, the whole welding position of the workpiece can be conveniently welded by standing on the same side of the supporting frame, welding is more convenient, meanwhile, a welding seam can be conveniently checked, and the welding quality is effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of welding of automobile rear axles, in particular to a welding fixture for automobile rear axles. Background Art

[0002] The rear axle refers to the rear drive shaft component of the vehicle's power transmission; it consists of two half-bridges and can implement half-bridge differential movement; at the same time, it is also a device used to support the wheels and connect the rear wheels;

[0003] The rear axle needs to be welded during processing, and currently it is all done manually. During welding, one or two workers place the workpiece and hold it steady while another worker welds. During the welding process, if the worker cannot hold it steady, it will directly affect the welding quality. Utility Model Content

[0004] The utility model proposes a welding fixture for automobile rear axle, which is more flexible during welding by providing a support frame with adjustable angle, and can effectively improve welding efficiency; at the same time, a first flipping mechanism, a second flipping mechanism and a third flipping mechanism are provided on the welding platform, which can drive the workpiece to flip, making it convenient to weld the entire welding position of the workpiece while standing on the same side of the support frame, making welding more convenient and facilitating the inspection of the weld, thereby effectively improving the welding quality.

[0005] The technical solution of the present utility model is achieved as follows:

[0006] An automobile rear axle welding fixture comprises: a support frame;

[0007] The support frame includes a welding platform, a first support frame, a second support frame, a support plate, a positioning slot and a rotating cylinder; the first support frame and the second support frame are symmetrically installed on the support plate, the first support frame and the second support frame are docked, and the welding platform is installed on the first support frame and the second support frame; a mounting slot is provided on the workshop floor, the rotating cylinder is installed in the mounting slot, and the pneumatic rod of the rotating cylinder faces upward; the support plate is installed on the pneumatic rod of the rotating cylinder; the positioning slot is installed on the workshop floor, the positioning slot is located on the outer peripheral side of the mounting slot, and the positioning slot is coaxial with the rotating cylinder and the mounting slot; a pulley is provided at the bottom of the support plate; the pulley is slidably installed in the positioning slot;

[0008] The welding platform is provided with a first flipping mechanism, a second flipping mechanism and a third flipping mechanism, wherein the first flipping mechanism and the third flipping mechanism have the same structure and are symmetrically arranged relative to the second flipping mechanism;

[0009] The first turning mechanism includes a first support seat, a first turntable, a first rotating drum, and a first clamping block; the first support seat is mounted on the welding platform, the first turntable is mounted on the first support seat, the first rotating drum is mounted on the first turntable, the first rotating drum extends out of the first support seat, the first rotating drum faces the second turning mechanism, and the first clamping block is mounted in the first rotating drum;

[0010] The second flip mechanism includes a second support seat, a second turntable, a second clamping block and a third clamping block; the second support seat is mounted on the welding platform, the second turntable is rotatably mounted on the second support seat, and the second clamping block and the third clamping block are symmetrically mounted on the inner circumference of the second turntable;

[0011] The first support seat and the second support seat are both provided with a positioning ring, the positioning ring is provided with a first positioning hole, and the first positioning hole is provided with a positioning pin; the first turntable and the second turntable are both provided with a second positioning hole, and the positioning pin is inserted into the second positioning hole and the first positioning hole or removed from the first positioning hole and the second positioning hole by plugging and pulling;

[0012] The rear axle includes a first body, a second body and a third body, the first body and the second body are respectively welded to both sides of the third body, the first body is installed on the first rotating drum, the second body is installed on the rotating drum of the third flipping mechanism, and the third body is installed on the second clamping block and the third clamping block.

[0013] Furthermore, both the first support frame and the second support frame are arc-shaped support frames;

[0014] The support plate is a circular support plate.

[0015] Furthermore, a plurality of pulleys are provided.

[0016] Furthermore, the first clamping block is mounted on the first rotating drum via a screw structure;

[0017] The screw structure includes an adjusting bolt, a push rod and a threaded hole, wherein the threaded hole is provided on the first rotating cylinder, the adjusting bolt is rotatably connected to the push rod, the adjusting bolt is engaged with the threaded hole, and the first clamping block is installed at the end of the push rod;

[0018] The third clamping block is installed on the second turntable through the above-mentioned screw structure.

[0019] Furthermore, a plurality of the first clamping blocks are provided.

[0020] Furthermore, the first support base and the second support base are mounted on the welding platform via a sliding mechanism;

[0021] The sliding mechanism includes a slider and a telescopic cylinder. The telescopic cylinder is horizontally installed on the welding platform. The slider is installed on the bottom of the first support seat or the second support seat. A third slide groove is provided on the welding platform. The slider is slidably installed in the third slide groove. The pneumatic rod of the telescopic cylinder is installed on the side of the first support seat or the second support seat.

[0022] Furthermore, a plurality of support rings are provided on the welding platform, and the first body and the second body are both supported on the support rings.

[0023] The utility model provides a support frame with adjustable angle, which makes welding more flexible and can effectively improve welding efficiency. At the same time, a first flip mechanism, a second flip mechanism and a third flip mechanism are provided on the welding platform, which can drive the workpiece to flip, making it convenient to weld the entire welding position of the workpiece while standing on the same side of the support frame, making welding more convenient and facilitating the inspection of the weld, thereby effectively improving the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0025] Figure 1 This is a schematic diagram of the overall structure of an automobile rear axle welding fixture in a specific embodiment of the utility model;

[0026] Figure 2 for Figure 1 A structural schematic diagram of a first turning mechanism of a rear axle welding fixture for an automobile is shown;

[0027] Figure 3 for Figure 2 The structure diagram of the first turntable of the first turning mechanism of the automobile rear axle welding fixture shown;

[0028] Figure 4 for Figure 2 An enlarged view of the structure at A shown;

[0029] Figure 5 for Figure 1 A structural schematic diagram of a second flipping mechanism of a rear axle welding fixture for an automobile is shown;

[0030] Figure 6 This is a simplified structural diagram of the rear axle;

[0031] Explanation of the accompanying drawings: support frame 1; welding platform 11; first support frame 12; second support frame 13; support plate 14; positioning groove 15; rotating cylinder 16; mounting groove 17; pulley 18; first flipping mechanism 2; first support seat 21; first turntable 22; first rotating drum 23; first clamping block 24; second flipping mechanism 3; second support seat 31; positioning ring 311; first positioning hole 312; positioning pin 313; second turntable 32; second positioning hole 321; second clamping block 33; third clamping block 34; third flipping mechanism 4; rear axle 5; first body 51; second body 52; third body 53; screw structure 6; adjusting bolt 61; push rod 62; threaded hole 63; sliding mechanism 7; slider 71; telescopic cylinder 72; support ring 8. DETAILED DESCRIPTION

[0032] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] In the specific embodiment of the present invention, see Figures 1-6 , an automobile rear axle welding fixture, comprising: a support frame 1;

[0034] See Figure 1 , the support frame 1 includes a welding platform 11, a first support frame 12, a second support frame 13, a support plate 14, a positioning groove 15 and a rotating cylinder 16; the first support frame 12 and the second support frame 13 are symmetrically installed on the support plate 14, the first support frame 12 and the second support frame 13 are docked, and the welding platform 11 is installed on the first support frame 12 and the second support frame 13; a mounting groove 17 is provided on the workshop floor, the rotating cylinder 16 is installed in the mounting groove 17, and the pneumatic rod of the rotating cylinder 16 faces upward; the support plate 14 is installed on the pneumatic rod of the rotating cylinder 16; the positioning groove 15 is installed on the workshop floor, the positioning groove 15 is located on the outer peripheral side of the mounting groove 17, and the positioning groove 15 is coaxial with the rotating cylinder 16 and the mounting groove 17; a pulley 18 is provided at the bottom of the support plate 14; the pulley 18 is slidably installed in the positioning groove 15;

[0035] A rotating cylinder 16 is provided, which cooperates with the pulley 18 and the positioning groove 15 to drive the welding platform 11 and the welding workpiece to rotate as a whole, and adjust to a more comfortable welding angle, thereby improving welding efficiency and reducing labor intensity of workers;

[0036] During operation, adjustments are made as needed. When the rotary cylinder 16 rotates, the support plate 14 is driven to rotate a certain angle. The support plate 14 is supported in the positioning groove 15 by the pulley 18 and rotates along the positioning groove 15 driven by the rotary cylinder 16, thereby driving the workpiece to be welded to adjust the angle.

[0037] In the specific embodiment of the present invention, see Figure 1-Figure 4 The welding platform 11 is provided with a first flip mechanism 2, a second flip mechanism 3 and a third flip mechanism 4. The first flip mechanism 2 and the third flip mechanism 4 have the same structure and are symmetrically arranged relative to the second flip mechanism 3;

[0038] The first turning mechanism 2 includes a first support base 21, a first turntable 22, a first rotating cylinder 23, and a first clamping block 24; the first support base 21 is mounted on the welding platform 11, the first turntable 22 is mounted on the first support base 21, the first rotating cylinder 23 is mounted on the first turntable 22, the first rotating cylinder 23 extends out of the first support base 21, the first rotating cylinder 23 faces the second turning mechanism 3, and the first clamping block 24 is mounted in the first rotating cylinder 23;

[0039] The second flip mechanism 3 includes a second support base 31, a second turntable 32, a second clamping block 33 and a third clamping block 34; the second support base 31 is mounted on the welding platform 31, the second turntable 32 is rotatably mounted on the second support base 31, the second clamping block 33 and the third clamping block 34 are symmetrically mounted on the inner circumference of the second turntable 32, the third clamping block 34 is a circular clamping block that provides support for the bottom of the second body, and the second clamping block 34 is a hemispherical shell that adapts to the shape of the second body;

[0040] The first support seat 21 and the second support seat 31 are both provided with a positioning ring, and the positioning ring is provided with a first positioning hole; the first turntable 22 and the second turntable 32 are both provided with a second positioning hole, and the positioning pin is inserted into the second positioning hole and the first positioning hole or leaves the first positioning hole and the second positioning hole by plugging and pulling; for example, the second support seat 31 is provided with a positioning ring 311, and the positioning ring 311 is provided with a first positioning hole 312, and the first positioning hole 312 is provided with a positioning pin 313, and the second turntable 32 is provided with a second positioning hole 321, and the positioning pin 313 is inserted into the second positioning hole 321 and the first positioning hole 312 or leaves the second positioning hole 321 and the first positioning hole 312 by plugging and pulling;

[0041] The rear axle 5 includes a first body 51, a second body 52 and a third body 53. The first body 51 and the second body 52 are respectively welded to the two sides of the third body 53. The first body 51 is installed on the first rotating drum 23, the second body 52 is installed on the rotating drum of the third flipping mechanism, and the third body 53 is installed on the second clamping block 33 and the third clamping block 34.

[0042] In the specific embodiment of the present invention, see Figure 1 , the first support frame 12 and the second support frame 13 are both arc-shaped support frames;

[0043] In order to save space and facilitate processing, the first support frame 12 and the second support frame 13 are set to be arc-shaped, which takes up less space. The welding platform is also set to be rectangular with the short side being arc-shaped, which makes it more convenient to stand on one side when rotating and welding.

[0044] In the specific embodiment of the present invention, see Figure 1 The pulley 18 is provided with multiple ones to improve the stability and smoothness of the rotation.

[0045] See Figure 1 、 Figure 2 、 Figure 4 , the first clamping block 24 is mounted on the first rotating drum 23 through the screw structure 6;

[0046] The screw structure 6 includes an adjusting bolt 61, a push rod 62, and a threaded hole 63. The threaded hole 63 is provided on the first rotating cylinder 23. The adjusting bolt 61 is rotatably connected to the push rod 62. The adjusting bolt 61 cooperates with the threaded hole 63. The first clamping block 24 is mounted on the end of the push rod 62.

[0047] The third clamping block 34 is mounted on the second turntable 32 via the aforementioned lead screw structure.

[0048] In the specific embodiment of the present invention, see Figures 1-6 ,

[0049] Two, three, etc. first clamping blocks can be provided as needed.

[0050] In the specific embodiment of the present invention, see Figures 1-6 , the first support seat 21 and the second support seat 31 are installed on the welding platform 11 through a sliding mechanism 7;

[0051] The sliding mechanism 7 includes a slider 71 and a telescopic cylinder 72. The telescopic cylinder 72 is horizontally mounted on the welding platform 11. The slider 72 is mounted on the bottom of the first support seat 21 or the second support seat 31. A third slide groove is provided on the welding platform 11. The slider 72 is slidably mounted in the third slide groove. The gas pressure rod of the telescopic cylinder 72 is mounted on the side of the first support seat 21 or the second support seat 31.

[0052] By providing the sliding mechanism 7 , the joints of the first body 51 , the second body 52 and the third body 53 can be brought into close contact, thereby facilitating welding and improving welding quality.

[0053] In the specific embodiment of the present invention, see Figure 1 A plurality of support rings 8 are further provided on the welding platform 11 , and both the first body 51 and the second body 52 are supported on the support rings 8 .

[0054] When working, first install the first body, the second body, and the third body, use the first clamp, the second clamp, and the third clamp to clamp the workpiece, and then adjust the angle for welding. Before welding, adjust the angle of the welding platform. During the welding process, you can first weld the side close to you, and then rotate the other side to the side close to you by rotating the workpiece and then weld. This effectively improves the convenience of welding. The welding joint can be inspected while standing in one position, effectively improving the welding efficiency and welding quality.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A welding fixture for an automobile rear axle, used for positioning the rear axle; comprising: Support frame; It is characterized in that: the support frame includes a welding platform, a first support frame, a second support frame, a support plate, a positioning slot and a rotating cylinder; the first support frame and the second support frame are symmetrically installed on the support plate, the first support frame and the second support frame are docked, and the welding platform is installed on the first support frame and the second support frame; a mounting slot is provided on the workshop floor, the rotating cylinder is installed in the mounting slot, and the pneumatic rod of the rotating cylinder faces upward; the support plate is installed on the pneumatic rod of the rotating cylinder; the positioning slot is installed on the workshop floor, the positioning slot is located on the outer peripheral side of the mounting slot, and the positioning slot is coaxial with the rotating cylinder and the mounting slot; a pulley is provided at the bottom of the support plate; the pulley is slidably installed in the positioning slot; The welding platform is provided with a first flipping mechanism, a second flipping mechanism and a third flipping mechanism, wherein the first flipping mechanism and the third flipping mechanism have the same structure and are symmetrically arranged relative to the second flipping mechanism; The first turning mechanism includes a first support seat, a first turntable, a first rotating drum, and a first clamping block; the first support seat is mounted on the welding platform, the first turntable is mounted on the first support seat, the first rotating drum is mounted on the first turntable, the first rotating drum extends out of the first support seat, the first rotating drum faces the second turning mechanism, and the first clamping block is mounted in the first rotating drum; The second flip mechanism includes a second support seat, a second turntable, a second clamping block and a third clamping block; the second support seat is mounted on the welding platform, the second turntable is rotatably mounted on the second support seat, and the second clamping block and the third clamping block are symmetrically mounted on the inner circumference of the second turntable; The first support seat and the second support seat are both provided with a positioning ring, the positioning ring is provided with a first positioning hole, and the first positioning hole is provided with a positioning pin; the first turntable and the second turntable are both provided with a second positioning hole, and the positioning pin is inserted into the second positioning hole and the first positioning hole or removed from the first positioning hole and the second positioning hole by plugging and pulling; The rear axle includes a first body, a second body and a third body, the first body and the second body are respectively welded to both sides of the third body, the first body is installed on the first rotating drum, the second body is installed on the rotating drum of the third flipping mechanism, and the third body is installed on the second clamping block and the third clamping block.

2. The automobile rear axle welding fixture according to claim 1, characterized in that: The first support frame and the second support frame are both arc-shaped support frames; The support plate is a circular support plate.

3. The automobile rear axle welding fixture according to claim 1, characterized in that: A plurality of pulleys are provided.

4. The automobile rear axle welding fixture according to claim 3, characterized in that: The first clamping block is mounted on the first rotating drum via a screw structure; The screw structure includes an adjusting bolt, a push rod and a threaded hole, wherein the threaded hole is provided on the first rotating cylinder, the adjusting bolt is rotatably connected to the push rod, the adjusting bolt is engaged with the threaded hole, and the first clamping block is installed at the end of the push rod; The third clamping block is installed on the second turntable through the above-mentioned screw structure.

5. The automobile rear axle welding fixture according to claim 1, characterized in that: A plurality of the first clamping blocks are provided.

6. The automobile rear axle welding fixture according to claim 1, characterized in that: The first support base and the second support base are installed on the welding platform through a sliding mechanism; The sliding mechanism includes a slider and a telescopic cylinder. The telescopic cylinder is horizontally installed on the welding platform. The slider is installed on the bottom of the first support seat or the second support seat. A third slide groove is provided on the welding platform. The slider is slidably installed in the third slide groove. The pneumatic rod of the telescopic cylinder is installed on the side of the first support seat or the second support seat.

7. The automobile rear axle welding fixture according to claim 1, characterized in that: The welding platform is further provided with a plurality of support rings, and the first body and the second body are both supported on the support rings.

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