Assembly welding positioning mechanism of rear drive axle housing of new energy automobile

Abstract

The utility model relates to the technical field of axle housing processing, and discloses an assembly welding positioning mechanism of a rear drive axle housing of a new energy automobile, which comprises a bottom plate, a rectangular block is fixedly mounted on one side of the upper surface of the bottom plate, and a first sliding groove is formed in the upper surface of the rectangular block. According to the rear axle housing, the positions of the two arc-shaped sliding rails are adjusted, so that the circle centers of the arc-shaped sliding rails and the center of the rear axle housing body are located on the same horizontal line, and then the movable seats located on the two arc-shaped sliding rails slide in the arc-shaped sliding rails; laser distance measuring sensors fixedly installed on extension blocks fixedly connected with the movable bases can detect the distance between the laser distance measuring sensors and the outer wall of the axle shaft sleeve, and the two laser distance measuring sensors detect the connecting positions between the two sides of the axle shaft sleeve and the rear axle housing body correspondingly. The distances from all positions of the outer wall of the axle shaft sleeve to the laser distance measuring sensor are equal, so that the butt joint precision between the axle shaft sleeve and the axle housing main body is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to axle housing processing technical field especially relates to a kind of new energy automobile's rear drive axle housing's assembly welding positioning mechanism. BACKGROUND

[0002] New energy automobile rear drive segmented axle housing should generally have enough strength and rigidity to support the weight of the vehicle and withstand the characteristics of the road surface reaction force and counter torque transmitted by the wheel, the rear axle housing of the vehicle includes the rear axle housing main body and the half shaft sleeve pipe at both ends of the rear axle housing main body, the rear axle housing main body of the traditional automobile rear axle housing is integrally cast with the half shaft sleeve pipe on both sides, the size of the mold equipment is large, the manufacturing cost is high, especially for single-piece small batch sample production, the cost is high, so in the prior art, the rear axle housing main body and the half shaft sleeve pipe on both sides are manufactured separately, and then the half shaft sleeve pipe and the rear axle housing main body are welded, the production cost can be greatly reduced, so in actual production, the coaxiality of the rear axle housing main body and the half shaft sleeve pipe and the strength of the connecting part need to be strictly guaranteed.

[0003] In the prior art, patent number CN215880495U discloses an automobile rear axle housing welding clamping tool, which includes a workbench, a support circular table is arranged at the middle position of the workbench, a left-right direction guide groove is arranged on the upper surface of the workbench, two support sliding blocks are arranged in the guide groove, the two support sliding blocks are respectively located on the left and right sides of the support circular table, and a V-shaped groove is arranged on the upper surface of the support sliding block in the direction of the guide groove; it also includes two clamping sliding blocks, the two clamping sliding blocks are respectively arranged on the outer side of the two support sliding blocks, a clamping head assembly is arranged on each support sliding block, and the clamping head assembly can clamp or release the half shaft sleeve pipe and the rear axle housing main body. In the utility model, the size of the automobile rear axle housing manufacturing equipment is small, the cost is low, and it is especially suitable for small batch sample production. There is a continuous clamping force between the rear axle housing main body and the half shaft sleeve pipe before and after welding, so the coaxiality of the automobile rear axle housing and the half shaft sleeve pipe produced is high.

[0004] Although the above technical solution can provide a continuous clamping force between the rear axle housing main body and the half shaft sleeve pipe during use, so as to enhance the connection strength between the rear axle housing main body and the half shaft sleeve pipe, the coaxiality of the connection part between the rear axle housing main body and the half shaft sleeve pipe is not detected during use, and it is still difficult to ensure that the axle center of the rear axle housing and the half shaft sleeve pipe remains consistent. Therefore, we propose a kind of new energy automobile's rear drive axle housing's assembly welding positioning mechanism. UTILITY MODEL CONTENTS

[0005] The utility model mainly solves the technical problems existing in the prior art, and provides a kind of new energy automobile's rear drive axle housing's assembly welding positioning mechanism.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme, a kind of rear drive axle housing of new energy vehicle's group welding positioning mechanism, including bottom plate, the upper surface one side of the bottom plate is fixedly installed with rectangular block, the upper surface of rectangular block is equipped with first sliding slot, two groups of symmetrical setting are slidably installed in the inside of first sliding slot and hang clamp component, the upper surface center position of bottom plate is fixedly installed with supporting column, the upper end of supporting column is fixedly installed with supporting platform, and the upper surface of supporting platform is located between two movable plates and is provided with rear axle housing body, third sliding slot is equipped on the outer wall of the side of rectangular block close to rear axle housing body, two groups of positioning welding assembly are slidably installed in the inside of third sliding slot.

[0007] The two oppositely arranged arc-shaped sliding rails of the positioning welding assembly are slidably installed with movable seats inside the two arc-shaped sliding rails, the welding head is fixedly installed on the movable seat, the extension block is fixedly installed on the outer wall of the movable seat, and the laser ranging sensor is fixedly installed on the outer wall of the side of the extension block close to the first electric telescopic rod.

[0008] Preferably, the upper surface of the bottom plate is also provided with a second sliding slot on both sides of the supporting column, a first electric telescopic rod is fixedly installed at one end inside the second sliding slot, the output end of the first electric telescopic rod is fixedly installed with a movable plate, and the lower end of the movable plate is slidably installed in the second sliding slot, and the upper end of the movable plate is movably installed with a clamping assembly.

[0009] Preferably, the inside of the third sliding slot is slidably installed with two symmetrically arranged first sliding blocks, the second electric telescopic rod is fixedly installed on the first sliding block, the output end of the second electric telescopic rod is fixedly installed with a mounting box, the inside of the mounting box is slidably installed with two symmetrically arranged second sliding blocks, and the distal end of the second sliding block is fixedly connected with the arc-shaped sliding rail.

[0010] Preferably, the upper surface of the supporting platform is provided with a plurality of mounting grooves, the supporting rods are slidably installed in the mounting grooves, and the middle position of the supporting rod is rotatably connected with the inner wall of one end of the mounting groove.

[0011] Preferably, the hanging clamp assembly comprises a sliding rod slidably installed in the first sliding slot, a third electric telescopic rod is fixedly installed at the other end of the sliding rod, the output end of the third electric telescopic rod is fixedly installed with a horizontal plate, the center position of the horizontal plate is fixedly connected with the output end of the third electric telescopic rod, and the two ends of the horizontal plate are respectively fixedly installed with hanging clamps.

[0012] Preferably, the inside of the second sliding slot is slidably installed with an electric lifting platform between the supporting column and the movable plate, and the inside of the two groups of second sliding slots is provided with an electric lifting platform.

[0013] Preferably, the arc-shaped sliding rail is semi-circular, and the center of the arc-shaped sliding rail and the center of the rear axle housing body are located on the same horizontal line.

[0014] Beneficial effects

[0015] The utility model provides a kind of new energy automobile's rear drive axle housing's assembly welding positioning mechanism.It has following beneficial effects:

[0016] (1) the new energy automobile's rear drive axle housing's assembly welding positioning mechanism, by adjusting the position of two arc-shaped slide rails so that the center of arc-shaped slide rail and the center of rear axle housing body are located on the same horizontal line, then the movable seat located on two arc-shaped slide rails slides inside arc-shaped slide rail, and the laser ranging sensor fixedly installed on the extension block fixedly connected with movable seat can detect the distance between laser ranging sensor and the outer wall of half shaft sleeve pipe, two laser ranging sensors detect the connecting place between half shaft sleeve pipe two sides and rear axle housing body respectively, ensure that the distance from each part of half shaft sleeve pipe outer wall to laser ranging sensor is equal, so that the butt joint accuracy between half shaft sleeve pipe and axle housing body is improved.

[0017] (2) the new energy automobile's rear drive axle housing's assembly welding positioning mechanism, if the connecting place between half shaft sleeve pipe and rear axle housing body is not completely aligned, by adjusting the position of electric lifting platform, and then adjusting the height of half shaft sleeve pipe end by electric lifting platform, until rear axle housing body and half shaft sleeve pipe are accurately butt jointed. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the description of embodiments or prior art. Obviously, the drawings in the following description are only exemplary, and for those skilled in the art, other implementation drawings can be obtained without creative labor according to the provided drawings.

[0019] The structure, proportion, size and the like shown in the specification are only used to cooperate with the content disclosed in the specification, for understanding and reading by those skilled in the art, and are not used to limit the limiting conditions that can be implemented by the utility model, so they do not have technical substantive significance, any modification of structure, change of proportion relationship or adjustment of size, without affecting the effect and purpose that can be produced by the utility model, should still fall within the scope covered by the technical content disclosed by the utility model.

[0020] Figure 1 It is the overall structure schematic diagram of the utility model;

[0021] Figure 2 It is the overall structure front view schematic diagram of the utility model;

[0022] Figure 3 It is the positioning welding assembly structure schematic diagram of the utility model;

[0023] Figure 4 Another state structure schematic view of the utility model positioning welding assembly;

[0024] Figure 5 The utility model discares a bearing table structure section view.

[0025] Legend: 1, bottom plate, 2, rectangular block, 3, first sliding groove, 4, rear axle housing body, 5, bearing column, 6, movable plate, 7, first electric telescopic rod, 8, second sliding groove, 9, clamping assembly, 10, support rod, 11, sliding rod, 12, second electric telescopic rod, 13, electric lifting platform, 14, bearing table, 15, third sliding groove, 16, third electric telescopic rod, 17, cross plate, 18, hanging clamp, 19, first sliding block, 20, installation box, 21, second sliding block, 22, arc slide rail, 23, movable seat, 24, laser ranging sensor, 25, welding head, 26, extension block. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the utility model will be clearly and completely described below with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0027] As Figures 1-5 shown, a kind of new energy automobile rear drive axle housing's group welding positioning mechanism, including bottom plate 1, the upper surface of bottom plate 1 one side is fixedly installed with rectangular block 2, the upper surface of rectangular block 2 is equipped with first sliding groove 3, first sliding groove 3 is slidably installed with two groups of symmetrically arranged hanging clamp assembly, the upper surface center position of bottom plate 1 is fixedly installed with bearing column 5, the upper end of bearing column 5 is fixedly installed with bearing table 14, bearing table 14 upper surface is located between two movable plates 6 and is provided with rear axle housing body 4, the outer wall of rectangular block 2 is equipped with third sliding groove 15 near rear axle housing body 4, third sliding groove 15 is slidably installed with two groups of positioning welding assembly;

[0028] Positioning welding assembly two oppositely arranged arc slide rails 22, the inside of two arc slide rails 22 is slidably installed with movable seat 23, movable seat 23 is fixedly installed with welding head 25, the outer wall of movable seat 23 is fixedly installed with extension block 26, laser ranging sensor 24 is fixedly installed on the outer wall of extension block 26 near first electric telescopic rod 7;

[0029] When the new energy automobile rear drive axle housing is welded, the rear axle housing body 4 is mainly composed of a rear axle housing body and two half shaft sleeve pipes, wherein the circular hole at the center position of the rear axle housing body in the rear axle housing body 4 is placed on the supporting table 14, and the two half shaft sleeve pipes combined with the rear axle housing body on the rear axle housing body 4 can be suspended by the two groups of hanging clamp assemblies arranged on the rectangular block 2. After the two half shaft sleeve pipes are butt-jointed with the rear axle housing body, the connecting position of the half shaft sleeve pipe and the rear axle housing body can be detected by the positioning and welding assembly movably installed on the rectangular block 2. By adjusting the positions of the two arc-shaped sliding rails 22, the centers of the arc-shaped sliding rails 22 are located on the same horizontal line as the center of the rear axle housing body 4. Then, the movable seats 23 arranged on the two arc-shaped sliding rails 22 slide in the arc-shaped sliding rails 22. The extension blocks 26 are fixedly connected with the movable seats 23. When the movable seats 23 slide, the extension blocks 26 slide synchronously with the movable seats 23. The laser ranging sensors 24 fixedly installed on the extension blocks 26 can detect the distance between the laser ranging sensors 24 and the outer wall of the half shaft sleeve pipe. When the two movable seats 23 arranged on both sides of the half shaft sleeve pipe slide one hundred and eighty degrees in the arc-shaped sliding rails 22, the two laser ranging sensors 24 detect the connecting position between the half shaft sleeve pipe and the rear axle housing body respectively, so that the distance from the outer wall of the half shaft sleeve pipe to the laser ranging sensors 24 is equal, and the butt-joint precision between the half shaft sleeve pipe and the axle housing body is improved. Finally, the welding heads 25 arranged on the movable seats 23 can weld the connecting position between the rear axle housing body and the half shaft sleeve pipe by controlling the movable seats 23 to slide in the arc-shaped sliding rails 22 again, until the new energy automobile rear drive axle housing is welded.

[0030] As shown in Figure 1 , the upper surface of the bottom plate 1 is provided with a second sliding groove 8 on both sides of the supporting column 5. A first electric telescopic rod 7 is fixedly installed at one end in the second sliding groove 8. An active plate 6 is fixedly installed at the output end of the first electric telescopic rod 7. The lower end of the active plate 6 is slidably installed in the second sliding groove 8. A clamping assembly 9 is movably installed at the upper end of the active plate 6. After the two half shaft sleeve pipes are precisely butt-jointed with the rear axle housing body, the two groups of clamping assemblies 9 arranged at the upper ends of the two active plates 6 clamp the two ends of the half shaft sleeve pipes, so that the two half shaft sleeve pipes are combined with the rear axle housing body.

[0031] As shown in Figure 3As shown, the inside of the third sliding chute 15 is slidingly installed with two symmetrically arranged first sliding blocks 19, the first sliding block 19 is fixedly installed with a second electric telescopic rod 12, the output end of the second electric telescopic rod 12 is fixedly installed with a mounting box 20, the inside of the mounting box 20 is slidingly installed with two symmetrically arranged second sliding blocks 21, and the end of the second sliding block 21 is fixedly connected with the arc-shaped sliding rail 22; by sliding the second sliding block 21 in the inside of the mounting box 20, the two arc-shaped sliding rails 22 can be separated, and then the half shaft sleeve contained in the rear axle housing body 4 can be placed between the two arc-shaped sliding rails 22, and then by adjusting the positions of the first sliding block 19, the second electric telescopic rod 12 and the two second sliding blocks 21, the centers of the two arc-shaped sliding rails 22 and the center of the rear axle housing main body contained in the rear axle housing body 4 are located on the same horizontal line.

[0032] As shown in Figure 5 , the upper surface of the supporting table 14 is provided with a plurality of mounting grooves, the inside of the mounting groove is slidingly installed with a support rod 10, and the middle position of the support rod 10 is rotationally connected with the inner wall of one end of the mounting groove; the circular hole at the center position of the rear axle housing main body in the rear axle housing body 4 is aligned with the supporting table 14, and the support rod 10 arranged inside the mounting groove on the upper surface of the supporting table 14 can be adjusted according to the size of the circular hole on the rear axle housing body 4; when the size of the rear axle housing body 4 and the circular hole on the rear axle housing body 4 is small, the plurality of support rods 10 can be adjusted to be inclined, and when the size of the circular hole on the rear axle housing body 4 is larger than the outer diameter of the supporting table 14, the plurality of support rods 10 can be adjusted to be horizontal to support the rear axle housing body 4.

[0033] As shown in Figure 1 , the hanging clamp assembly includes a sliding rod 11 slidingly installed in the first sliding chute 3, the other end of the sliding rod 11 is fixedly installed with a third electric telescopic rod 16, the output end of the third electric telescopic rod 16 is fixedly installed with a horizontal plate 17, the center position of the horizontal plate 17 is fixedly connected with the output end of the third electric telescopic rod 16, and the two ends of the horizontal plate 17 are respectively fixedly installed with hanging clamps 18; by hanging the half shaft sleeve with the two groups of hanging clamps 18, the stability of the half shaft sleeve can be improved, and then the half shaft sleeve and the rear axle housing main body can be butt jointed.

[0034] As shown in Figure 1 , the inside of the second sliding chute 8 is slidingly installed with an electric lifting platform 13 between the supporting column 5 and the movable plate 6, and the inside of the two groups of second sliding chutes 8 is provided with the electric lifting platform 13; if the connection between the half shaft sleeve and the rear axle housing main body is not completely aligned, by adjusting the position of the electric lifting platform 13 and adjusting the height of the end of the half shaft sleeve through the electric lifting platform 13, the rear axle housing main body and the half shaft sleeve can be precisely butt jointed.

[0035] As shown in Figure 3 and Figure 4As shown, the arc-shaped slide rail 22 is arranged in a semicircle, and the center of the arc-shaped slide rail 22 is located on the same horizontal line as the center of the rear axle housing body 4; by adjusting the positions of the two arc-shaped slide rails 22 so that the center of the arc-shaped slide rail 22 is located on the same horizontal line as the center of the rear axle housing body 4, when the movable seat 23 slides, the extension block 26 synchronously slides with the movable seat 23, and the laser ranging sensor 24 fixedly installed on the extension block 26 can detect the distance between the laser ranging sensor 24 and the outer wall of the half shaft sleeve, and the two laser ranging sensors 24 respectively detect the connecting portions between the half shaft sleeve and the rear axle housing body, so as to ensure that the distances from the outer wall of the half shaft sleeve to the laser ranging sensor 24 are equal.

[0036] The utility model discloses a working principle: when the new energy automobile's rear drive axle housing is welded, rear axle housing body 4 mainly comprises rear axle housing main part and two half shaft sleeve pipes, wherein the round hole of rear axle housing main part center position in rear axle housing body 4 is placed to the alignment bearing platform 14, wherein the support rod 10 set up inside the installation groove of bearing platform 14 upper surface can be adjusted according to the size of the round hole on rear axle housing body 4, when the size of the round hole on rear axle housing body 4 is small, can adjust multiple support rods 10 to be inclined, when the size of the round hole on rear axle housing body 4 is greater than the outer diameter of bearing platform 14, can adjust multiple support rods 10 to be horizontal to the support of rear axle housing body 4, then through the two groups of hanging clamp assemblies set up on rectangular block 2 can be suspended to the two half shaft sleeve pipes of rear axle housing main part combination on rear axle housing body 4, wherein two hangers 18 in hanging clamp assembly can make half shaft sleeve pipe and rear axle housing main part butt joint after suspending and supporting half shaft sleeve pipe, when two half shaft sleeve pipes and rear axle housing main part butt joint, the positioning welding assembly of movable installation on rectangular block 2 can detect the junction of half shaft sleeve pipe and rear axle housing main part, wherein by adjusting the position of two arc slide rails 22 makes the center of arc slide rail 22 and the center of rear axle housing body 4 be located on the same horizontal line, then movable seat 23 set up on two arc slide rails 22 slide in the inside of arc slide rail 22, extension block 26 and movable seat 23 fixed connection, when movable seat 23 slides, extension block 26 and movable seat 23 synchronous sliding, the laser ranging sensor 24 of fixed installation on extension block 26 can detect the distance between laser ranging sensor 24 and the both sides outer wall of half shaft sleeve pipe, when two movable seats 23 set up on the both sides of half shaft sleeve pipe all slide in the inside of arc slide rail 22 by one hundred and eighty degrees, two laser ranging sensors 24 detect the junction between half shaft sleeve pipe and rear axle housing main part respectively, guarantee that the distance of half shaft sleeve pipe outer wall everywhere to laser ranging sensor 24 is equal, make the butt joint precision between half shaft sleeve pipe and axle housing main part improve, if the junction between half shaft sleeve pipe and rear axle housing main part is not completely aligned, by adjusting the position of electric lifting platform 13, again by electric lifting platform 13 lifting adjustment half shaft sleeve pipe end height, until rear axle housing main part and half shaft sleeve pipe accurate butt joint, then two groups of clamping assemblies 9 set up on the upper end of two movable plates 6 respectively extrude tightly the both ends of half shaft sleeve pipe, make two half shaft sleeve pipes and rear axle housing main part combination, finally, again control movable seat 23 slide in the inside of arc slide rail 22, the welding head 25 set up on movable seat 23 can weld the junction between rear axle housing main part and half shaft sleeve pipe, until the welding of this kind new energy automobile rear drive axle housing is completed.

[0037] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A new energy automobile rear drive axle housing assembly welding positioning mechanism, comprising a base plate (1), characterized in that: The upper surface of the bottom plate (1) is fixedly installed with a rectangular block (2), the upper surface of the rectangular block (2) is provided with a first sliding groove (3), two groups of symmetrical hanging clamp assemblies are slidably installed in the first sliding groove (3), the upper surface of the bottom plate (1) is fixedly installed with a supporting column (5), the upper end of the supporting column (5) is fixedly installed with a supporting table (14), the upper surface of the supporting table (14) is provided with a rear axle housing body (4) between two movable plates (6), the side wall of the rectangular block (2) close to the rear axle housing body (4) is provided with a third sliding groove (15), and two groups of positioning welding assemblies are slidably installed in the third sliding groove (15). The two opposite arc-shaped sliding rails (22) are slidably installed with movable seats (23) in the arc-shaped sliding rails (22), the welding heads (25) are fixedly installed on the movable seats (23), the extension blocks (26) are fixedly installed on the outer wall of the movable seat (23), and the laser ranging sensors (24) are fixedly installed on the side wall of the extension block (26) close to the first electric telescopic rod (7).

2. The group welding positioning mechanism of the rear drive axle housing of a new energy vehicle according to claim 1, characterized in that: The upper surface of the bottom plate (1) is provided with a second sliding groove (8) on the two sides of the supporting column (5), a first electric telescopic rod (7) is fixedly installed at one end in the second sliding groove (8), a movable plate (6) is fixedly installed at the output end of the first electric telescopic rod (7), and the lower end of the movable plate (6) is slidably installed in the second sliding groove (8). The upper end of the movable plate (6) is movably installed with a clamping assembly (9).

3. The group welding positioning mechanism of the rear drive axle housing of a new energy vehicle according to claim 2, characterized in that: The third sliding groove (15) is slidably installed with two symmetrically arranged first sliding blocks (19), the second electric telescopic rod (12) is fixedly installed on the first sliding block (19), the output end of the second electric telescopic rod (12) is fixedly installed with a mounting box (20), and the mounting box (20) is slidably installed with two symmetrically arranged second sliding blocks (21). The distal end of the second sliding block (21) is fixedly connected with the arc-shaped sliding rail (22).

4. The group welding positioning mechanism of the rear drive axle housing of a new energy vehicle according to claim 3, characterized in that: The upper surface of the supporting table (14) is provided with a plurality of mounting grooves, and the supporting rods (10) are slidably installed in the mounting grooves.

5. The group welding positioning mechanism of the rear drive axle housing of a new energy vehicle according to claim 4, characterized in that: The hanging clamp assembly comprises a sliding rod (11) slidably installed in the first sliding groove (3), a third electric telescopic rod (16) fixedly installed at the other end of the sliding rod (11), a horizontal plate (17) fixedly installed at the output end of the third electric telescopic rod (16), and the horizontal plate (17) is fixedly connected with the output end of the third electric telescopic rod (16). The two ends of the horizontal plate (17) are respectively fixedly installed with hanging clamps (18).

6. The group welding positioning mechanism of the rear drive axle housing of a new energy vehicle according to claim 2, characterized in that: The second sliding groove (8) is slidably installed with an electric lifting platform (13) between the supporting column (5) and the movable plate (6), and the second sliding groove (8) is provided with the electric lifting platform (13).

7. The group welding positioning mechanism of the rear drive axle housing of a new energy vehicle according to claim 6, characterized in that: The arc-shaped sliding rail (22) is semicircular, and the center of the arc-shaped sliding rail (22) and the center of the rear axle housing body (4) are located on the same horizontal line.

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