Rear axle housing assembly clamp

Abstract

The invention relates to the technical field of welding clamps, in particular to a rear axle housing assembly clamp which comprises a bottom plate. The end plate support is used for positioning the first end of the rear axle shell in the axial direction in the first direction, the second direction and the third direction; the end jacking mechanism is used for positioning the second end of the rear axle shell in the axial direction of the rear axle shell in the first direction, the second direction and the third direction; the connecting plate positioning mechanism is used for positioning the connecting plate in the first direction and the third direction; the first side face positioning mechanism is used for positioning the upper plate spring seat in the first direction, the second direction and the third direction; the second side face positioning mechanism is used for positioning the lower plate spring base in the first direction, the second direction and the third direction. According to the scheme, the upper plate spring seats and the lower plate spring seats with different sizes can be positioned, so that rear axle housing assemblies with different sizes can be positioned. The production cost is reduced and the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of welding fixtures, in particular to a rear axle housing assembly fixture. Background Art

[0002] With the continuous development and intensified competition in the domestic automobile market, the speed of new product development of automobile factories is also accelerating, and the variety of automobile axle assembly products is increasing, and the technical requirements are getting higher and higher. The rear axle housing assembly is a key part of the automobile axle assembly. It has a large size and high processing accuracy. It needs to go through more than 20 processes such as turning, boring, and milling. The process is complicated. Each type of axle housing assembly needs to design and manufacture a large number of large fixtures to ensure the processing quality. In the welding process of the rear axle housing assembly, the connecting plate, lower leaf spring seat, upper leaf spring seat, etc. must be installed on the housing before welding. The welding accuracy directly affects the subsequent processes of the product.

[0003] In the prior art, due to the large variety of mid-rear axle housing assemblies for automobiles, it is necessary to design tooling fixtures for different axle housing types according to the shape and design dimensions of the mid-rear axle housing assemblies during welding. Each type of axle housing requires a large number of fixtures for positioning and processing, which greatly increases the production cost. Due to the large size of the fixtures, special warehouses and personnel are required for storage and management. When the type of axle housing processing is changed, a lot of time is required to disassemble and replace the fixtures and calibrate the accuracy and coordinate position, which seriously affects the production progress of the manufacturing unit. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a rear axle housing assembly clamp to solve the problem that each type of rear axle housing assembly in the prior art corresponds to a welding clamp, resulting in high production costs and the disassembly and assembly of the clamp affects production efficiency.

[0005] In order to achieve the above-mentioned object and other related objects, the present invention provides a rear axle housing assembly clamp, comprising:

[0006] Base plate;

[0007] An end plate bracket, disposed on the bottom plate, for positioning a first end of the rear axle housing along its axial direction along a first direction, a second direction and a third direction, wherein the first direction, the second direction and the third direction are perpendicular to each other;

[0008] An end tightening mechanism is arranged on the bottom plate and is arranged opposite to the end plate bracket, and is used to position the second end of the rear axle housing along its axial direction along the first direction, the second direction and the third direction;

[0009] A connection plate positioning mechanism is movably disposed on the bottom plate along a first direction and is located between the end plate bracket and the end tightening mechanism, and is used to position the connection plate along the first direction and the third direction;

[0010] A first side positioning mechanism is arranged on the bottom plate, the first side positioning mechanism comprises a first side support frame, a first side driving member, a second side driving member and a first side positioning assembly, a driving end of the first side driving member is transmission-connected with the first side support frame to drive the first side support frame to move along the second direction, the second side driving member is arranged on the first side support frame, the first side positioning assembly is movably arranged on the first side support frame along the first direction, the driving end of the second side driving member is transmission-connected with the first side positioning assembly to drive the first side positioning assembly to move along the first direction, and the first side positioning assembly is used to position the upper leaf spring seat along the first direction, the second direction and the third direction;

[0011] The second side positioning mechanism is arranged on the base plate and is arranged opposite to the first side positioning mechanism. The second side positioning mechanism includes a second side support frame, a third side driving member, a fourth side driving member and a second side positioning assembly. The driving end of the third side driving member is transmission-connected to the second side support frame to drive the second side support frame to move along the second direction. The fourth side driving member is arranged on the second side support frame. The second side positioning assembly is movably arranged on the second side support frame along the first direction. The driving end of the fourth side driving member is transmission-connected to the second side positioning assembly to drive the second side positioning assembly to move along the first direction. The second side positioning assembly is used to position the lower leaf spring seat along the first direction, the second direction and the third direction.

[0012] Optionally, the connecting plate positioning mechanism includes a connecting plate support frame, a first connecting plate clamping assembly and a second connecting plate clamping assembly, the connecting plate support frame is movably arranged on the base plate along a first direction, the first connecting plate clamping assembly is arranged on the connecting plate support frame, the second connecting plate clamping assembly is movably arranged on the connecting plate support frame along a third direction, the first connecting plate clamping assembly and the second connecting plate clamping assembly are relatively arranged along the first direction, the first connecting plate clamping assembly includes a first connecting plate clamping driving member and a first connecting plate clamping member, and the driving end of the first connecting plate clamping driving member is transmission-connected to the first connecting plate clamping member to drive the first connecting plate clamping member to move along the first direction.

[0013] Optionally, the second connecting plate clamping assembly includes a second connecting plate clamping piece and two horizontally arranged clamping blocks, and the two clamping blocks are respectively arranged on both side edges of the second connecting plate clamping piece along the second direction on a side facing the first connecting plate clamping piece.

[0014] Optionally, a first support plate is provided on the base plate, and the connecting plate support frame is movably provided on the base plate along a first direction through the first support plate, and two first limit blocks are respectively provided on both sides of the first support plate along the first direction, and first adjustment blocks are respectively detachably provided on opposite sides of the two first limit blocks.

[0015] Optionally, the end plate clamping mechanism includes an end clamping drive, an end clamping assembly and a support member, wherein the driving end of the end clamping drive is transmission-connected to the end clamping assembly to drive the end clamping assembly to move in a first direction to clamp the second end of the rear axle housing along its axial direction in the first direction, and the support member is used to support the outer wall of the rear axle housing.

[0016] Optionally, the end plate bracket is provided with a plurality of first positioning holes arranged along its circumference along the side surface of the first aspect, and the first positioning holes are used to connect the first end of the rear axle housing along its axial direction.

[0017] Optionally, the first side positioning assembly includes a first clamping plate, and the first clamping plate is provided with a plurality of second positioning holes for matching with the positioning holes on the upper leaf spring seat.

[0018] Optionally, the second side positioning assembly includes a second clamping plate and a positioning block, the second clamping plate is provided with a plurality of third positioning holes for matching with the positioning holes on the lower leaf spring seat, the positioning block is provided with a fourth positioning hole, and a vertical positioning pin is matched in the fourth positioning hole.

[0019] Optionally, a second support plate is provided on the base plate, the first side positioning mechanism is arranged on the base plate through the second support plate, a second limit block is provided on the side of the second support plate away from the first side driving member, a second adjustment block is detachably provided on the side of the second limit block facing the first side driving member, a third limit block is provided on the end of the first side support frame away from the second side driving member, and a third adjustment block is detachably provided on the side of the third limit block facing the second side driving member.

[0020] Optionally, a third support plate is provided on the base plate, the second side positioning mechanism is provided on the base plate through the third support plate, a fourth limit block is provided on the side of the third support plate away from the third side driving member, a fourth adjustment block is detachably provided on the side of the fourth limit block facing the third side driving member, a fifth limit block is provided on the end of the second side support frame away from the fourth side driving member, and a fifth adjustment block is detachably provided on the side of the fifth limit block facing the fourth side driving member.

[0021] As described above, the rear axle housing assembly fixture of the present invention has the following beneficial effects:

[0022] The connecting plate positioning mechanism is used to position the connecting plate, and is movably arranged on the bottom plate along the first direction, so that the present solution can position connecting plates of different sizes. The first side driving member can drive the first side supporting frame to move along the second direction, and the second side driving member can drive the first side positioning assembly to move along the first direction, so that the first side positioning assembly can have freedom in the first direction and the second direction, and can position upper leaf spring seats of different sizes. The third side driving member can drive the second side supporting frame to move along the second direction, and the fourth side driving member can drive the second side positioning assembly to move along the first direction, so that the second side positioning assembly can have freedom in the first direction and the second direction, and can position lower leaf spring seats of different sizes. The present solution can position upper leaf spring seats and lower leaf spring seats of various sizes, so that rear axle housing assemblies of various sizes can be positioned. The production cost is reduced, and when positioning rear axle housing assemblies of different sizes, there is no need to disassemble and replace the fixtures and calibrate the accuracy, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0024] Figure 2 It is a schematic diagram of the overall structure of another angle of an embodiment of the present invention;

[0025] Figure 3 It is a schematic structural diagram of a first side positioning mechanism according to an embodiment of the present invention;

[0026] Figure 4 This is a schematic structural diagram of the first side positioning mechanism from another angle according to an embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of the structure of the end tightening mechanism of an embodiment of the present invention;

[0028] Figure 6 This is a schematic structural diagram of a connection plate positioning mechanism according to an embodiment of the present invention;

[0029] Figure 7 This is a schematic structural diagram of another angle connection plate positioning mechanism according to an embodiment of the present invention;

[0030] Figure 8 It is a schematic structural diagram of the second side positioning mechanism according to an embodiment of the present invention;

[0031] Fig. 9 This is a schematic structural diagram of the second side positioning mechanism from another angle according to an embodiment of the present invention;

[0032] Fig.10Schematic diagram of the end plate support structure according to an embodiment of the present invention.

[0033] Part Number Description

[0034] 1-bottom plate; 11-first support plate; 12-second support plate; 13-third support plate; 2-end plate bracket; 21-first positioning hole; 3-end tightening mechanism; 31-end tightening drive member; 32-end tightening assembly; 321-panel; 322-top cone; 33-support member; 4-first side positioning mechanism; 41-first side drive member; 42-second side drive member; 43-first side support bracket; 44-first side positioning assembly; 441-second positioning hole; 45-third limit block; 46-third adjustment block; 47-second limit block; 48-second adjustment block; 5-second side positioning mechanism; 51-third side drive Part; 52-fourth side driving member; 53-second side supporting frame; 54-second side positioning assembly; 542-third positioning hole; 55-positioning block; 551-fourth positioning hole; 552-vertical positioning pin; 56-fourth limiting block; 57-fourth adjusting block; 58-fifth limiting block; 59-fifth adjusting block; 6-connecting plate positioning mechanism; 61-first connecting plate clamping assembly; 611-first connecting plate clamping driving member; 612-first connecting plate clamping member; 62-connecting plate supporting frame; 63-second connecting plate clamping assembly; 631-second connecting plate clamping member; 632-pressing block; 64-first limiting block; 65-first adjusting block. DETAILED DESCRIPTION

[0035] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0036] It should be noted that the diagram provided in the present embodiment only illustrates the basic concept of the present invention in a schematic manner, so the diagram only shows the components related to the present invention rather than drawing according to the number, shape and size of the components during actual implementation. The type, quantity and ratio of each component during actual implementation can be a random change, and the component layout type may also be more complicated. The structure, ratio, size, etc. illustrated in the drawings of the present specification are only used to match the content disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions that the present invention can implement, so they have no technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effect that the present invention can produce and the purpose that can be achieved. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of narration, and are not used to limit the scope of the present invention. The change or adjustment of its relative relationship should also be regarded as the scope of the present invention without substantially changing the technical content.

[0037] See also Figure 1 to Figure 2 , this embodiment provides a rear axle housing assembly fixture, including:

[0038] Bottom plate 1;

[0039] An end plate bracket 2 is arranged on the bottom plate 1 and is used to position a first end of the rear axle housing along its axial direction along a first direction, a second direction and a third direction, wherein the first direction, the second direction and the third direction are perpendicular to each other;

[0040] The end tightening mechanism 3 is arranged on the bottom plate 1 and is arranged opposite to the end plate bracket 2, and is used to position the second end of the rear axle housing along its axial direction along the first direction, the second direction and the third direction;

[0041] The connecting plate positioning mechanism 6 is movably arranged on the bottom plate 1 along the first direction and is located between the end plate bracket 2 and the end tightening mechanism 3, and is used to position the connecting plate along the first direction and the third direction;

[0042] The first side positioning mechanism 4 is arranged on the bottom plate 1, and the first side positioning mechanism 4 includes a first side support frame 43, a first side driving member 41, a second side driving member 42 and a first side positioning assembly 44. The driving end of the first side driving member 41 is connected to the first side support frame 43 to drive the first side support frame 43 to move along the second direction. The second side driving member 42 is arranged on the first side support frame 43. The first side positioning assembly 44 is movably arranged on the first side support frame 43 along the first direction. The driving end of the second side driving member 42 is connected to the first side positioning assembly 44 to drive the first side positioning assembly 44 to move along the first direction. The first side positioning assembly 44 is used to position the upper leaf spring seat along the first direction, the second direction and the third direction;

[0043] The second side positioning mechanism 5 is arranged on the base plate 1 and is arranged opposite to the first side positioning mechanism 4. The second side positioning mechanism 5 includes a second side support frame 53, a third side driving member 51, a fourth side driving member 52 and a second side positioning assembly 54. The driving end of the third side driving member 51 is transmission-connected with the second side support frame 53 to drive the second side support frame 53 to move along the second direction. The fourth side driving member 52 is arranged on the second side support frame 53. The second side positioning assembly 54 is movably arranged on the second side support frame 53 along the first direction. The driving end of the fourth side driving member 52 is transmission-connected with the second side positioning assembly 54 to drive the second side positioning assembly 54 to move along the first direction. The second side positioning assembly 54 is used to position the lower leaf spring seat along the first direction, the second direction and the third direction.

[0044] The end plate bracket 2 and the end clamping mechanism 3 are arranged relative to each other along the first direction, and are respectively located at the two ends of the rear axle housing along its axial direction during positioning work, that is, the first direction is the axial direction of the rear axle housing. The second direction is the horizontal direction perpendicular to the axial direction of the rear axle housing, and the third direction is the vertical direction.

[0045] The connection plate positioning mechanism 6 is located between the end plate bracket 2 and the end tightening mechanism 3. When installed, the connection plate is placed on the outer wall of the rear axle housing. Therefore, the location of the connection plate positioning mechanism 6 can conveniently position the connection plate while avoiding interference with the end plate bracket 2 and the end tightening mechanism 3.

[0046] The first side positioning mechanism 4 and the second side positioning mechanism 5 are arranged relatively along the second direction, the first side positioning assembly 44 positions the upper leaf spring seat along the first direction, the second direction and the third direction, and the second side positioning assembly 54 positions the lower leaf spring seat along the first direction, the second direction and the third direction. The upper leaf spring seat and the lower leaf spring seat are symmetrically arranged along the axis of the rear axle housing. The first side positioning assembly 44 and the second side positioning assembly 54 both have degrees of freedom along the first direction and the second direction, so that both can be adjusted in the first direction and the second direction to adapt to upper leaf spring seats and lower leaf spring seats of different sizes, so as to position and clamp rear axle housing assembly clamps of different sizes. All driving parts of this embodiment are cylinders, and all movable motion modes can be completed by linear guides.

[0047] In this embodiment, the connecting plate positioning mechanism 6 is used to position the connecting plate, and is movably arranged on the bottom plate 1 along the first direction, so that the scheme can position connecting plates of different sizes. The first side driving member 41 can drive the first side supporting frame 43 to move along the second direction, and the second side driving member 42 can drive the first side positioning assembly 44 to move along the first direction, so that the first side positioning assembly 44 can have freedom in the first direction and the second direction, and position upper leaf spring seats of different sizes. The third side driving member 51 can drive the second side supporting frame 53 to move along the second direction, and the fourth side driving member 52 can drive the second side positioning assembly 54 to move along the first direction, so that the second side positioning assembly 54 has freedom in the first direction and the second direction, and positions lower leaf spring seats of different sizes. This scheme can position upper leaf spring seats and lower leaf spring seats of various sizes, so that rear axle housing assemblies of various sizes can be positioned. The production cost is reduced, and when positioning rear axle housing assemblies of different sizes, there is no need to disassemble and replace the fixture and calibrate the accuracy, thereby improving work efficiency.

[0048] In one embodiment, if Figure 6 and Figure 7 As shown, the connecting plate positioning mechanism 6 includes a connecting plate support frame 62, a first connecting plate clamping assembly 61 and a second connecting plate clamping assembly 63. The connecting plate support frame 62 is movably arranged on the base plate 1 along a first direction. The first connecting plate clamping assembly 61 is arranged on the connecting plate support frame 62. The second connecting plate clamping assembly 63 is movably arranged on the connecting plate support frame 62 along a third direction. The first connecting plate clamping assembly 61 and the second connecting plate clamping assembly 63 are arranged relatively to each other along the first direction. The first connecting plate clamping assembly 61 includes a first connecting plate clamping driving member 611 and a first connecting plate clamping member 612. The driving end of the first connecting plate clamping driving member 611 is transmission-connected to the first connecting plate clamping member 612 to drive the first connecting plate clamping member 612 to move along the first direction.

[0049] The first connecting plate clamping assembly 61 and the second connecting plate clamping assembly 63 are arranged opposite to each other along the first direction. When the connecting plate is positioned and clamped, the connecting plate is located between the first connecting plate clamping assembly 61 and the second connecting plate clamping assembly 63. The first connecting plate clamping assembly 61 includes a first connecting plate clamping driving member 611 and a first connecting plate clamping member 612. The first connecting plate clamping driving member 611 can drive the first connecting plate clamping member 612 to approach and move away from the second connecting plate clamping assembly 63. Through the cooperation between the first connecting plate clamping member 612 and the second connecting plate clamping assembly 63, the first connecting plate clamping member 612 and the second connecting plate clamping assembly 63 respectively press the end surfaces of both sides of the connecting plate along the first direction to position and clamp the connecting plate along the first direction. The second connecting plate clamping assembly 63 can also position the connecting plate along the third direction. Since the second direction of the connecting plate has been positioned after the connecting plate is sleeved on the rear axle housing, it is no longer necessary to position the connecting plate along the second direction. The first connecting plate clamping member 612 is U-shaped to match the outer wall shape of the rear axle housing, and is located below the rear axle housing when the rear axle housing is clamped. On the one hand, it can avoid interference with the rear axle housing, and can also support the rear axle housing.

[0050] In one embodiment, if Figure 6 As shown, the second connecting plate clamping assembly 63 includes a second connecting plate clamping piece 631 and two horizontally arranged clamping blocks 632, and the two clamping blocks 632 are respectively arranged on the two side edges along the second direction of the second connecting plate clamping piece 631 facing the first connecting plate clamping piece 612.

[0051] The two clamping blocks 632 are arranged on the opposite sides of the second connecting plate clamping member 631 and the first connecting plate clamping member 612, and are located on the two side edges thereof along the second direction. The two clamping blocks 632 can also be arranged on the top of the second connecting plate clamping member 631, or respectively arranged on the two sides of the second connecting plate clamping member 631 along the first direction. The two clamping blocks 632 are arranged horizontally toward the first connecting plate clamping member 612, and the two clamping blocks 632 have the same height. The second connecting plate clamping assembly 63 can move in the vertical direction on the connecting plate support frame 62, so that the two clamping blocks 632 can simultaneously press down the tops of the two ends of the connecting plate along the second direction, thereby playing a role in positioning the connecting plate in the vertical direction. At the same time, the second connecting plate clamping assembly 63 can be raised and lowered, and can also adapt to connecting plates of different sizes.

[0052] In one embodiment, if Figure 6As shown, a first support plate 11 is provided on the bottom plate 1, and the connecting plate support frame 62 is movably provided on the bottom plate 1 along the first direction through the first support plate 11, and two first limit blocks 64 are respectively provided on both sides of the first support plate 11 along the first direction, and first adjustment blocks 65 are respectively detachably provided on the opposite sides of the two first limit blocks 64. The first adjustment blocks 65 can also be detachably provided on the opposite sides of the two first limit blocks 64.

[0053] The first support plate 11 is horizontally arranged on the bottom plate 1, and the connecting plate support frame 62 is movably arranged on the first support plate 11 along the first direction. Two vertically arranged first limit blocks 64 are respectively arranged on both sides of the first support plate 11 along the first direction, and the opposite sides of the two first limit blocks 64 are respectively detachably arranged with horizontally arranged first adjustment blocks 65. The two first adjustment blocks 65 can respectively abut against the two ends of the connecting plate support frame 62 along the first direction. In order to provide positioning and clamping efficiency for different products, by replacing the first adjustment blocks 65 of different length dimensions (the dimension along the first direction is the length dimension), the connecting plate support frame 62 is quickly slid to the corresponding first adjustment block 65 to abut. At this time, the second connecting plate clamping member 631 abuts against one side of the connecting plate along the first direction, and then the first connecting plate clamping member 612 is adjusted to abut against the other side of the connecting plate, so as to realize the rapid positioning and clamping of the connecting plate along the first direction.

[0054] In one embodiment, if Figure 5 As shown, the end plate clamping mechanism includes an end clamping drive member 31, an end clamping assembly 32 and a support member 33. The driving end of the end clamping drive member 31 is transmission-connected with the end clamping assembly 32 to drive the end clamping assembly 32 to move along a first direction to clamp the second end of the rear axle housing along its axial direction along the first direction. The support member 33 is used to support the outer wall of the rear axle housing.

[0055] The end tightening assembly 32 includes a panel 321 and a top cone 322. The top cone 322 is arranged on the side of the panel 321 facing the end plate bracket 2. The height of the top cone 322 is the same as the height of the second end of the rear axle housing, and is used to tighten the second end face of the rear axle housing in the first reverse direction. The support member 33 has a U-shaped or V-shaped groove, which is used to support the second end outer wall of the rear axle housing and position the second end outer wall of the rear axle housing in the second direction and the third direction.

[0056] In one embodiment, if Fig.10 As shown, the end plate bracket 2 is provided with a plurality of first positioning holes 21 arranged along its circumferential direction along the side surface of the first aspect, and the first positioning holes 21 are used to connect the first end of the rear axle housing along its axial direction.

[0057] The size of the rear axle housing may also be different. A plurality of first positioning holes 21 are arranged along the circumference of the end plate bracket 2. The end plate bracket 2 and the first end surface of the rear axle housing can be positioned and locked by cooperating with positioning pins and locking members in the positioning holes. The first positioning holes 21 are through holes in the horizontal direction. The first positioning holes 21 are grouped in pairs and correspond to one product, so that this embodiment can be applied to more products.

[0058] In one embodiment, if Figure 3 and Figure 4 As shown, the first side positioning assembly 44 includes a first clamping plate, and the first clamping plate is provided with a plurality of second positioning holes 441 for matching with the positioning holes on the upper leaf spring seat.

[0059] The second positioning hole 441 is a through hole in the horizontal direction. Similarly, the positions of the positioning holes on the upper leaf spring seat of different models and sizes may also be different. A plurality of second positioning holes 441 are arranged on the first clamping plate. The second positioning holes 441 are grouped in pairs and correspond to a product. The upper leaf spring seat can be positioned and locked, and the stability during welding can be improved, thereby improving the welding quality.

[0060] In one embodiment, the second side positioning assembly 54 includes a second clamping plate and a positioning block 55, the second clamping plate is provided with a plurality of third positioning holes 542 for matching with the positioning holes on the lower leaf spring seat, the positioning block 55 is provided with a fourth positioning hole 551, and the fourth positioning hole 551 is matched with a vertical positioning pin 552.

[0061] The second pressing plate and the positioning block 55 are both arranged on the second side support frame 53. The third positioning hole 542 is a through hole in the horizontal direction, and its principle is the same as that of the first positioning hole 21 and the second positioning hole 441. The positioning block 55 is arranged horizontally, and the fourth positioning hole 551 is a through hole in the vertical direction. The fourth positioning hole 551 matches with the through hole in the lower leaf spring seat along the vertical direction, and the vertical positioning pin 552 is inserted into the hole in the lower leaf spring seat and the fourth positioning hole 551 in sequence to complete locking and positioning, thereby improving positioning accuracy.

[0062] In one embodiment, if Figure 3 and Figure 4As shown, a second support plate 12 is provided on the bottom plate 1, the first side positioning mechanism 4 is provided on the bottom plate 1 through the second support plate 12, a second limit block 47 is provided on the side of the second support plate 12 away from the first side driving member 41, a second adjustment block 48 is detachably provided on the side of the second limit block 47 facing the first side driving member 41, a third limit block 45 is provided on the end of the first side support frame 43 away from the second side driving member 42, and a third adjustment block 46 is detachably provided on the side of the third limit block 45 facing the second side driving member 42. The second adjustment block 48 and the third adjustment block 46 can be respectively and correspondingly provided on the other side of the second limit block 47 and the third limit block 45.

[0063] The working principle of the second adjustment block 48 and the third adjustment block 46 is the same as that of the first adjustment block 65. By replacing the second adjustment block 48 of different sizes and abutting the first side support frame 43 against the second adjustment block 48 along the second direction, the position of the first side support frame 43 along the second direction can be quickly adjusted. By replacing the third adjustment block 46 of different sizes and abutting the first side positioning assembly 44 against the third adjustment block 46 along the first direction, the position of the first side positioning assembly 44 along the first direction can be quickly adjusted, thereby quickly adjusting the position of the first side positioning assembly 44 along the first direction and the second direction, thereby improving the positioning efficiency.

[0064] In one embodiment, if Figure 8 and Fig. 9 As shown, the bottom plate 1 is provided with a third support plate 13, the second side positioning mechanism 5 is provided on the bottom plate 1 through the third support plate 13, a fourth limit block 56 is provided on the side of the third support plate 13 away from the third side driving member 51, a fourth adjustment block 57 is detachably provided on the side of the fourth limit block 56 facing the third side driving member 51, a fifth limit block 58 is provided on the end of the second side support frame 53 away from the fourth side driving member 52, and a fifth adjustment block 59 is detachably provided on the side of the fifth limit block 58 facing the fourth side driving member 52. The fourth adjustment block 57 and the fifth adjustment block 59 can be respectively and correspondingly provided on the other side of the fourth limit block 56 and the fifth limit block 58.

[0065] The fourth adjustment block 57 and the fifth adjustment block 59 are based on the same principle as the first adjustment block 65, the second adjustment block 48 and the third adjustment block 46. A gasket for fine-tuning the size may be provided between the first adjustment block 65, the second adjustment block 48, the third adjustment block 46, the fourth adjustment block 57 and the fifth adjustment block 59 and their corresponding limit blocks.

[0066] In one embodiment, the base plate 1 is disposed on a movable shelf, and a universal roller is disposed at the bottom of the shelf to facilitate the movement of the embodiment to different positions.

[0067] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical ideas disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A rear axle housing assembly fixture, characterized in that: include: Base plate; An end plate bracket, disposed on the bottom plate, for positioning a first end of the rear axle housing along its axial direction along a first direction, a second direction and a third direction, wherein the first direction, the second direction and the third direction are perpendicular to each other; An end tightening mechanism is arranged on the bottom plate and is arranged opposite to the end plate bracket, and is used to position the second end of the rear axle housing along its axial direction along the first direction, the second direction and the third direction; A connection plate positioning mechanism is movably disposed on the bottom plate along a first direction and is located between the end plate bracket and the end tightening mechanism, and is used to position the connection plate along the first direction and the third direction; A first side positioning mechanism is arranged on the bottom plate, the first side positioning mechanism comprises a first side support frame, a first side driving member, a second side driving member and a first side positioning assembly, a driving end of the first side driving member is transmission-connected with the first side support frame to drive the first side support frame to move along the second direction, the second side driving member is arranged on the first side support frame, the first side positioning assembly is movably arranged on the first side support frame along the first direction, the driving end of the second side driving member is transmission-connected with the first side positioning assembly to drive the first side positioning assembly to move along the first direction, and the first side positioning assembly is used to position the upper leaf spring seat along the first direction, the second direction and the third direction; The second side positioning mechanism is arranged on the base plate and is arranged opposite to the first side positioning mechanism. The second side positioning mechanism includes a second side support frame, a third side driving member, a fourth side driving member and a second side positioning assembly. The driving end of the third side driving member is transmission-connected to the second side support frame to drive the second side support frame to move along the second direction. The fourth side driving member is arranged on the second side support frame. The second side positioning assembly is movably arranged on the second side support frame along the first direction. The driving end of the fourth side driving member is transmission-connected to the second side positioning assembly to drive the second side positioning assembly to move along the first direction. The second side positioning assembly is used to position the lower leaf spring seat along the first direction, the second direction and the third direction.

2. The rear axle housing assembly fixture according to claim 1, characterized in that: The connecting plate positioning mechanism includes a connecting plate support frame, a first connecting plate clamping assembly and a second connecting plate clamping assembly, the connecting plate support frame is movably arranged on the base plate along a first direction, the first connecting plate clamping assembly is arranged on the connecting plate support frame, the second connecting plate clamping assembly is movably arranged on the connecting plate support frame along a third direction, the first connecting plate clamping assembly and the second connecting plate clamping assembly are relatively arranged along the first direction, the first connecting plate clamping assembly includes a first connecting plate clamping driving member and a first connecting plate clamping member, and the driving end of the first connecting plate clamping driving member is transmission-connected to the first connecting plate clamping member to drive the first connecting plate clamping member to move along the first direction.

3. The rear axle housing assembly fixture according to claim 2, characterized in that: The second connecting plate clamping assembly includes a second connecting plate clamping piece and two horizontally arranged clamping blocks, and the two clamping blocks are respectively arranged on both side edges of the second connecting plate clamping piece along the second direction on one side facing the first connecting plate clamping piece.

4. The rear axle housing assembly fixture according to claim 2, characterized in that: A first support plate is arranged on the bottom plate, and the connecting plate support frame is movably arranged on the bottom plate along a first direction through the first support plate. Two first limit blocks are respectively arranged on both sides of the first support plate along the first direction, and first adjustment blocks are detachably arranged on opposite sides of the two first limit blocks.

5. The rear axle housing assembly fixture according to claim 1, characterized in that: The end plate clamping mechanism includes an end clamping drive, an end clamping assembly and a support member. The driving end of the end clamping drive is transmission-connected to the end clamping assembly to drive the end clamping assembly to move in a first direction to clamp the second end of the rear axle housing along its axial direction in the first direction. The support member is used to support the outer wall of the rear axle housing.

6. The rear axle housing assembly fixture according to claim 1, characterized in that: The end plate bracket is provided with a plurality of first positioning holes arranged along the circumferential direction thereof along the side surface of the first aspect, and the first positioning holes are used to connect the first end of the rear axle housing along the axial direction thereof.

7. The rear axle housing assembly fixture according to claim 1, characterized in that: The first side positioning assembly includes a first clamping plate, and the first clamping plate is provided with a plurality of second positioning holes for matching with the positioning holes on the upper leaf spring seat.

8. The rear axle housing assembly fixture according to claim 1, characterized in that: The second side positioning assembly includes a second clamping plate and a positioning block. The second clamping plate is provided with a plurality of third positioning holes for matching with the positioning holes on the lower leaf spring seat. The positioning block is provided with a fourth positioning hole, and a vertical positioning pin is matched in the fourth positioning hole.

9. The rear axle housing assembly fixture according to claim 1, characterized in that: A second supporting plate is provided on the bottom plate, the first side positioning mechanism is provided on the bottom plate through the second supporting plate, a second limiting block is provided on the side of the second supporting plate away from the first side driving member, a second adjusting block is detachably provided on the side of the second limiting block facing the first side driving member, a third limiting block is provided on the end of the first side supporting frame away from the second side driving member, and a third adjusting block is detachably provided on the side of the third limiting block facing the second side driving member.

10. The rear axle housing assembly fixture according to claim 1, characterized in that: A third supporting plate is arranged on the bottom plate, the second side positioning mechanism is arranged on the bottom plate through the third supporting plate, a fourth limiting block is arranged on a side of the third supporting plate away from the third side driving member, a fourth adjusting block is detachably arranged on a side of the fourth limiting block facing the third side driving member, a fifth limiting block is arranged on an end of the second side supporting frame away from the fourth side driving member, and a fifth adjusting block is detachably arranged on a side of the fifth limiting block facing the fourth side driving member.

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