Rear axle housing machining tool

Abstract

The rear axle housing machining tool comprises a bottom plate, clamping mechanisms are arranged at the two ends of the bottom plate in the X-axis direction respectively, each clamping mechanism comprises a movable plate and a first driving assembly, a supporting seat is arranged on the movable plate, a cushion block is detachably connected to the top of the supporting seat, a movable seat and a second driving assembly are further arranged on the movable plate, and the cushion block is detachably connected to the top of the supporting seat. A V-shaped groove is formed in the top of each movable seat, two guide seats are further arranged on the movable plate in a spaced mode, movable rods capable of ascending and descending in the Z-axis direction are arranged on the guide seats respectively, a pressing rod is rotationally connected to one movable rod, a pressing screw is rotationally connected to the other movable rod, and a groove for containing the pressing screw is formed in the end of the pressing rod. The pressing screw is provided with a pressing nut matched with the pressing screw, and the pressing nut abuts against the face, away from the supporting base, of the pressing rod. The automobile rear axle housing clamp solves the technical problem that an existing automobile rear axle housing clamp is poor in universality, and the automobile rear axle housing clamp has the technical effects that the machining requirements of rear axle housings of different models are met, and the universality is high.

Description

Technical Field

[0001] This utility model relates to the field of rear axle housing production technology, and in particular to a rear axle housing processing tooling. Background Technology

[0002] The rear axle housing assembly is a fundamental component for mounting the final drive, differential, half shafts, wheel hubs, and suspension. Its main function is to support and protect components such as the final drive, differential, and half shafts. The rear axle housing production process requires surface grinding and machining holes, and tooling is used to clamp and secure the housing during processing.

[0003] Chinese utility model patent CN209598701U discloses a rear axle housing clamp for automobiles, including a support frame with fixed rings on both sides of its upper end. The left and right ends of the rear axle housing are movably inserted into the fixed rings. A tensioning plate is provided above the support frame and at the bottom of the rear axle housing. A first spring seat and multiple guide rods are fixedly provided at the lower end of the tensioning plate. A base plate is fixedly provided at the lower end of the support frame, with a second spring seat at its upper end. A compression spring connects the first and second spring seats. When the compression spring is compressed, the upper end of the tensioning plate supports the bottom of the rear axle housing and presses it firmly. The lower ends of the guide rods movably pass through guide sleeves on the base plate and the base plate, connecting to anti-detachment bosses. This rear axle housing clamp enables rapid clamping of the rear axle housing without causing pinching damage or marks, thus improving the production quality of the rear axle housing.

[0004] The automobile rear axle housing clamp disclosed in the aforementioned utility model patent clamps the rear axle housing by movably inserting the left and right ends of the rear axle housing into fixed rings. Since the fixed rings are fixedly connected to the support frame, the distance between the two fixed rings fixed at both ends of the support frame cannot be adjusted according to the size of the rear axle housing. As a result, the aforementioned automobile rear axle housing clamp cannot meet the processing requirements of different models of rear axle housings and has poor versatility. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a rear axle housing machining fixture, which solves the problem of poor versatility of existing automotive rear axle housing fixtures.

[0006] According to an embodiment of this utility model, a rear axle housing machining fixture includes a base plate. Clamping mechanisms are respectively provided at both ends of the base plate in the X-axis direction. Each clamping mechanism includes a movable plate on the base plate that can move along the X-axis direction and a first drive assembly driven by the movable plate. A support seat is provided on the movable plate, and a pad is detachably connected to the top of the support seat. The movable plate also has a movable seat that can move along the X-axis direction and a second drive assembly driven by the movable seat. A V-groove is provided on the top of the movable seat. Two guide seats are also spaced apart on the movable plate, and the two guide seats are located on opposite sides of the support seat in the Y-axis direction. Each guide seat has a movable rod that can rise and fall along the Z-axis direction. A pressure rod is rotatably connected to one of the movable rods, and a clamping screw is rotatably connected to the other movable rod. The end of the pressure rod has a groove to accommodate the clamping screw. A clamping nut that cooperates with the clamping screw is provided on the clamping screw, and the clamping nut abuts against the side of the pressure rod away from the support seat.

[0007] Furthermore, the base plate is provided with a first slide rail, the length direction of the first slide rail is consistent with the X-axis direction, and the movable plate is provided with a first slider that cooperates with the first slide rail.

[0008] Furthermore, the first drive assembly includes a first drive screw rotatably mounted on the base plate and a first handwheel disposed at the end of the first drive screw. The axial direction of the first drive screw is consistent with the X-axis direction, and the movable plate is provided with a first threaded hole that cooperates with the first drive screw.

[0009] Furthermore, the support base is provided with a second threaded hole, and the pad is provided with a through hole aligned with the second threaded hole.

[0010] Furthermore, the top of the pad has a support surface, and the support surface is covered with a first flexible pad.

[0011] Furthermore, the movable plate is provided with a second slide rail, the length direction of the second slide rail is consistent with the X-axis direction, and the movable seat is provided with a second slider that cooperates with the second slide rail.

[0012] Furthermore, the second drive assembly includes a second drive screw rotatably mounted on the movable plate and a second handwheel disposed at the end of the second drive screw. The axial direction of the second drive screw is consistent with the X-axis direction, and the movable seat is provided with a third threaded hole that cooperates with the second drive screw.

[0013] Furthermore, the guide seat is provided with a guide hole that cooperates with the movable rod and a slide groove that communicates with the guide hole. A movable locking rod is provided in the slide groove. The movable rod is provided with a plurality of locking grooves spaced apart along the Z-axis direction, and one of the locking grooves communicates with the slide groove. When the locking rod moves along the slide groove, it enters or exits the locking groove.

[0014] Furthermore, the locking rod has a threaded portion, and a locking nut that mates with the threaded portion is provided on the locking rod, and the locking nut abuts against the guide seat.

[0015] Furthermore, the pressure rod is provided with a second flexible pad, which covers the side of the pressure rod near the support base.

[0016] Compared with the prior art, this utility model has the following advantages: By employing clamping mechanisms respectively set at both ends of the base plate along the X-axis, the rear axle housing to be processed is clamped. During clamping, the main body of the rear axle housing is placed on the pad, and the half-shaft sleeves at both ends of the rear axle housing are respectively placed into the V-grooves. Then, the pressure rod is rotated to make it abut against the side of the rear axle housing body away from the pad, and the clamping screw is rotated to make the clamping screw enter the groove. The clamping nut is rotated to make the clamping nut abut against the pressure rod, pressing the pressure rod onto the main body of the rear axle housing, thus clamping the rear axle housing. When different models of rear axle housings need to be clamped, the first drive assembly can be operated to drive the movable plate to move on the base plate, and the second drive assembly can be operated... The moving part drives the movable seat to move on the movable plate to adjust the position of the pad and V-groove. The pad and the support seat are detachably connected to facilitate the replacement of the pad that is compatible with the rear axle housing, ensuring that the rear axle housing can be placed stably on the clamping mechanism. The height of the pressure rod and the clamping screw can be changed by the lifting and lowering of the movable rod on the guide seat, ensuring that the pressure rod abuts against the rear axle housing and presses the rear axle housing tightly onto the pad. This allows the rear axle housing machining fixture to be compatible with various models of rear axle housings. It solves the technical problem of poor versatility of existing automotive rear axle housing fixtures, and produces a technical effect of meeting the machining needs of different models of rear axle housings with strong versatility. It helps to reduce production costs and is simple to operate and easy to use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the rear axle housing machining fixture according to an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the rear axle housing machining tooling from another perspective according to an embodiment of the present invention;

[0019] Figure 3 This is a front view of a rear axle housing machining fixture according to an embodiment of the present invention;

[0020] Figure 4This is a partially exploded view of the guide seat in the rear axle housing machining tooling according to an embodiment of the present invention;

[0021] Figure 5 This is a cross-sectional view of the guide seat in the rear axle housing machining tooling according to an embodiment of the present invention.

[0022] In the above figures: 1. Base plate; 11. First slide rail; 2. Movable plate; 21. First slider; 22. Second slide rail; 3. First drive assembly; 31. First drive screw; 32. First handwheel; 4. Support seat; 41. Pad; 42. Through hole; 43. First flexible pad; 5. Movable seat; 51. V-groove; 52. Second slider; 6. Second drive assembly; 61. Second drive screw; 62. Second handwheel; 7. Guide seat; 71. Guide hole; 72. Slide groove; 73. Locking rod; 74. Locking nut; 75. Limiting groove; 8. Movable rod; 81. Pressure rod; 82. Pressure screw; 83. Pressure nut; 84. Locking groove; 85. Second flexible pad; 86. Protrusion; 87. Groove. Detailed Implementation

[0023] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0024] like Figures 1 to 5 As shown in the figure, this utility model embodiment proposes a rear axle housing machining fixture, which is used to clamp the rear axle housing during the machining process of the automobile rear axle housing in order to fix the position of the rear axle housing.

[0025] Please refer to Figure 1 and Figure 2The rear axle housing machining fixture includes a base plate 1. Clamping mechanisms are respectively provided at both ends of the base plate 1 in the X-axis direction. Each clamping mechanism includes a movable plate 2 movable along the X-axis on the base plate 1 and a first drive assembly 3 pultrusively connected to the movable plate 2. The first drive assembly 3 drives the movable plate 2 to move along the X-axis on the base plate 1, causing the two clamping mechanisms to move closer or further apart. A support seat 4 is provided on the movable plate 2, and a pad 41 is detachably connected to the top of the support seat 4. The movable plate 2 also has a movable seat 5 movable along the X-axis and a second drive assembly 6 pultrusively connected to the movable seat 5. A V-groove 51 is provided on the top of the movable seat 5. The pad 41 supports the main body of the rear axle housing to be machined, and the V-groove 51 is used to place the half-shaft sleeves at both ends of the rear axle housing. The second drive assembly 6 drives the movable seat 5 to move along the movable plate 2. The distance between the pad 41 and the V-groove 51 can be adjusted by moving the pad. Two guide seats 7 are also provided on the movable plate 2 at intervals, and the two guide seats 7 are located on opposite sides of the support 4 along the Y-axis. Each guide seat 7 is provided with a movable rod 8 that can be raised and lowered along the Z-axis. One of the movable rods 8 is rotatably connected to a pressure rod 81, and the other movable rod 8 is rotatably connected to a clamping screw 82. The end of the pressure rod 81 is provided with a groove 87 to accommodate the clamping screw 82. The clamping screw 82 is provided with a clamping nut 83 that cooperates with the clamping screw 82, and the clamping nut 83 abuts against the side of the pressure rod 81 away from the support 4. The pressure rod 81 is used to press the rear axle housing onto the pad 41, and the position of the pressure rod 81 is fixed by the abutment between the clamping nut 83 and the pressure rod 81 to ensure that the position of the rear axle housing remains stable after it is clamped.

[0026] Specifically, the operation steps for clamping the rear axle housing using the rear axle housing machining fixture provided in this embodiment are as follows: Place the main body of the rear axle housing to be machined onto the pad 41, and place the half-shaft sleeves at both ends of the rear axle housing into the V-grooves 51 respectively. Then rotate the pressure rod 81 so that the pressure rod 81 abuts against the side of the main body of the rear axle housing away from the pad 41, and rotate the clamping screw 82 so that the clamping screw 82 enters the groove 87. Finally, rotate the clamping nut 83 to press... The rear axle housing is clamped by abutting the clamping nut 83 against the pressure rod 81 and pressing the pressure rod 81 against the main body of the rear axle housing. When the rear axle housing needs to be removed after processing, rotate the clamping nut 83 to move it away from the pressure rod 81 and rotate the clamping screw 82 to move it out of the groove 87. Then rotate the pressure rod 81 to move it away from the rear axle housing, thereby releasing the clamping of the rear axle housing and removing it from the rear axle housing processing fixture. When using the rear axle housing processing fixture provided in this embodiment to clamp different models of rear axle housings, first replace the pad 41 that is compatible with the rear axle housing. Then, by operating the first drive component 3, drive the movable plate 2 to move on the base plate 1 to adjust the distance between the two clamping mechanisms, so that the pad 41 in the two clamping mechanisms is stably attached to the main body of the rear axle housing. Then, operate the second drive component 6 to drive the movable seat 5 to move on the movable plate 2 to adjust the distance between the pad 41 and the V-groove 51, so that the half-shaft sleeve of the rear axle housing can be placed in the V-groove 51, ensuring that the rear axle housing can be stably placed on the clamping mechanism. Then, by raising and lowering the movable rod 8 on the guide seat 7, change the height of the pressure rod 81 and the clamping screw 82, ensuring that the pressure rod 81 abuts against the rear axle housing and presses the rear axle housing onto the pad 41. This allows the rear axle housing processing fixture to be compatible with various models of rear axle housings. The rear axle housing machining tooling provided in this embodiment can meet the machining requirements of different models of rear axle housings, has strong versatility, helps reduce the production cost of purchasing tooling, and is simple to operate and easy to use.

[0027] like Figure 3 As shown, the base plate 1 is provided with a first slide rail 11, the length direction of the first slide rail 11 is consistent with the X-axis direction, and the movable plate 2 is provided with a first slider 21 that cooperates with the first slide rail 11. The first slide rail 11 is provided on the base plate 1, and the first slider 21 that cooperates with the first slide rail 11 is provided on the movable plate 2 to ensure that the movable plate 2 moves along the X-axis direction when it moves on the base plate 1, preventing the movable plate 2 from undergoing unexpected offset.

[0028] In detail, the first drive assembly 3 includes a first drive screw 31 rotatably mounted on the base plate 1 and a first handwheel 32 disposed at the end of the first drive screw 31. The axial direction of the first drive screw 31 is aligned with the X-axis direction, and the movable plate 2 is provided with a first threaded hole that mates with the first drive screw 31. By operating the first handwheel 32 to rotate the first drive screw 31, the movable plate 2 is driven to move along the axial direction of the first drive screw 31 through the engagement of the first threaded hole with the first drive screw 31, thereby adjusting the distance between the two clamping mechanisms. Furthermore, by controlling the rotation direction of the first drive screw 31 through the first handwheel 32, the direction of movement of the movable plate 2 can be changed, making operation convenient.

[0029] Please refer to Figure 2 The support base 4 is provided with a second threaded hole, and the pad 41 is provided with a through hole 42 aligned with the second threaded hole. The pad 41 can be fixed to the support base 4 by passing a bolt through the through hole 42 and engaging with the second threaded hole, thus ensuring a secure connection between the pad 41 and the support base 4. The pad 41 can be removed by unscrewing the bolt, making it easy to replace.

[0030] In this embodiment, the top of the pad 41 has a support surface, and the support surface is covered with a first flexible pad 43. The support surface on the top of the pad 41 directly contacts the rear axle housing and positions the rear axle frame. Setting the support surface at a certain angle to the horizontal plane allows the rear axle housing to be deflected by a corresponding angle before clamping, facilitating the machining of holes on the rear axle housing. The first flexible pad 43, made of soft materials such as silicone or foam, covers the support surface and prevents the pad 41 from scratching the rear axle housing when the rear axle housing machining fixture clamps it.

[0031] like Figure 3 As shown, the movable plate 2 is provided with a second slide rail 22, the length direction of which is consistent with the X-axis direction, and the movable seat 5 is provided with a second slider 52 that cooperates with the second slide rail 22. The movable seat 5 is guided to move on the movable plate 2 by the second slide rail 22 provided on the movable plate 2. The second slider 52 on the movable seat 5 cooperates with the second slide rail 22 to ensure that the movable seat 5 moves along the X-axis direction, preventing the movable seat 5 from deviating from the preset direction. Furthermore, the cooperation between the second slider 52 and the second slide rail 22 can reduce the friction between the movable seat 5 and the movable plate 2, which helps to improve the stability of the movable seat 5 when it moves.

[0032] Specifically, the second drive assembly 6 includes a second drive screw 61 rotatably mounted on the movable plate 2 and a second handwheel 62 disposed at the end of the second drive screw 61. The axial direction of the second drive screw 61 is aligned with the X-axis direction, and the movable seat 5 is provided with a third threaded hole that mates with the second drive screw 61. By rotating the second handwheel 62, the second drive screw 61 can be rotated. When the second drive screw 61 rotates, the engagement between the second drive screw 61 and the third threaded hole drives the movable seat 5 to move along the axial direction of the second drive screw 61, thereby causing the movable seat 5 to move along the X-axis direction and adjusting its position on the movable plate 2. Furthermore, operating the second handwheel 62 controls the rotation direction of the second drive screw 61, thereby controlling the movement direction of the movable seat 5, facilitating the adjustment of the rear axle housing machining fixture.

[0033] Please combine Figure 4 and Figure 5 The guide seat 7 is provided with a guide hole 71 that mates with the movable rod 8 and a sliding groove 72 that communicates with the guide hole 71. A movable locking rod 73 is provided in the sliding groove 72. The movable rod 8 is provided with multiple locking grooves 84 spaced apart along the Z-axis, and one of the locking grooves 84 communicates with the sliding groove 72. When the locking rod 73 moves along the sliding groove 72, it enters or exits the locking groove 84. When the movable rod 8 moves along the Z-axis on the guide seat 7, the movable rod 8 slides in the guide hole 71. After the movable rod 8 is moved to the target height, the locking rod 73 is moved along the sliding groove 72 into the locking groove 84 that communicates with the sliding groove 72, thereby locking the position of the movable rod 8 on the guide seat 7. When it is necessary to readjust the movable rod 8, the movable rod 8 is moved along the sliding groove 72 to disengage the movable rod 8 from the locking groove 84, thereby releasing the locking of the movable rod 8. The operation is simple.

[0034] In detail, the locking rod 73 has a threaded portion, and a locking nut 74 that mates with the threaded portion is provided on the locking rod 73, with the locking nut 74 abutting against the guide seat 7. The threaded portion is provided at the end of the locking rod 73, and the locking nut 74 that mates with the threaded portion is provided on the locking rod 73. Tightening the locking nut 74 so that it abuts against the guide seat 7 locks the position of the locking rod 73, keeping it in the position of extending into the locking groove 84, thus locking the position of the movable rod 8 on the guide seat 7. When it is necessary to adjust the height of the movable rod 8, the locking nut 74 is loosened and the locking rod 73 is moved so that the locking rod 73 exits the locking groove 84 along the slide groove 72.

[0035] Please combine Figure 4 and Figure 5 The movable rod 8 has a protruding protrusion 86 on its side wall, and the guide seat 7 has a limiting groove 75 that mates with the protrusion 86 and communicates with the guide hole 71. The protrusion 86 on the movable rod 8 and the limiting groove 75 on the guide seat 7 prevent the movable rod 8 from rotating within the guide hole 71, which could cause misalignment between the pressure rod 81 and the clamping screw 82. This ensures that after the pressure rod 81 rotates to the position abutting against the rear axle housing, the clamping screw 82 can smoothly enter the groove 87 when it rotates, thus improving the reliability of the rear axle housing machining fixture.

[0036] like Figure 2 As shown, in this embodiment, the pressure rod 81 is provided with a second flexible pad 85, which covers the side of the pressure rod 81 near the support base 4. When the pressure rod 81 abuts against the rear axle housing, the side of the pressure rod 81 near the support base 4 is in direct contact with the rear axle housing. The second flexible pad 85 is provided on the pressure cover and is made of a soft material such as silicone or rubber to make the surface of the pressure rod 81 soft and prevent the rear axle housing from being scratched by the pressure rod 81, thus affecting product quality.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A rear axle housing machining tooling fixture comprising a base plate, two ends of the base plate in the X-axis direction are respectively provided with clamping mechanisms, characterized in that: The clamping mechanism includes a movable plate that can move along the X-axis on the base plate and a first drive assembly that is pulsatorically connected to the movable plate. The movable plate is provided with a support seat and a pad is detachably connected to the top of the support seat. The movable plate is also provided with a movable seat that can move along the X-axis and a second drive assembly that is pulsatorically connected to the movable seat. The top of the movable seat is provided with a V-groove. The movable plate is also provided with two guide seats spaced apart and the two guide seats are respectively located on opposite sides of the support seat in the Y-axis direction. Each guide seat is provided with a movable rod that can be raised and lowered along the Z-axis direction. One of the movable rods is rotatably connected with a pressure rod and the other movable rod is rotatably connected with a clamping screw. The end of the pressure rod is provided with a groove to accommodate the clamping screw. The clamping screw is provided with a clamping nut that cooperates with the clamping screw and the clamping nut abuts against the side of the pressure rod away from the support seat.

2. A rear axle housing machining tool as in claim 1 wherein: The base plate is provided with a first slide rail, the length direction of the first slide rail is consistent with the X-axis direction, and the movable plate is provided with a first slider that cooperates with the first slide rail.

3. A rear axle housing machining tool as in claim 1 wherein: The first drive assembly includes a first drive screw rotatably mounted on the base plate and a first handwheel mounted at the end of the first drive screw. The axial direction of the first drive screw is consistent with the X-axis direction, and the movable plate is provided with a first threaded hole that cooperates with the first drive screw.

4. A rear axle housing machining tool as in claim 1 wherein: The support base is provided with a second threaded hole, and the pad is provided with a through hole aligned with the second threaded hole.

5. A rear axle housing machining tool as in claim 1 wherein: The top of the pad has a support surface, and the support surface is covered with a first flexible pad.

6. A rear axle housing machining tool as in claim 1 wherein: The movable plate is provided with a second slide rail, the length direction of the second slide rail is consistent with the X-axis direction, and the movable seat is provided with a second slider that cooperates with the second slide rail.

7. A rear axle housing machining tool as in claim 1 wherein: The second drive assembly includes a second drive screw rotatably mounted on the movable plate and a second handwheel located at the end of the second drive screw. The axial direction of the second drive screw is consistent with the X-axis direction, and the movable seat is provided with a third threaded hole that cooperates with the second drive screw.

8. The rear axle housing machining fixture as described in claim 1, characterized in that: The guide seat is provided with a guide hole that cooperates with the movable rod and a slide groove that communicates with the guide hole. A movable locking rod is provided in the slide groove. The movable rod is provided with a plurality of locking grooves spaced apart along the Z-axis direction, and one of the locking grooves communicates with the slide groove. When the locking rod moves along the slide groove, it enters or exits the locking groove.

9. A rear axle housing machining tooling fixture as in claim 8 wherein: The locking rod has a threaded portion, and a locking nut that mates with the threaded portion is provided on the locking rod, and the locking nut abuts against the guide seat.

10. A rear axle housing machining tool as in claim 1 wherein: The pressure rod is provided with a second flexible pad, which covers the side of the pressure rod near the support base.

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