Integral differential housing spherical machining apparatus

Abstract

The application relates to the differential housing processing field and particularly discloses an integrated differential housing spherical surface processing equipment which comprises a bed body, a supporting table is arranged on the bed body, rotating wheel shafts are slidably arranged on the two sides of the supporting table, a loading and unloading shaft moving in two directions is arranged on the inner top wall of the bed body, the moving directions of the loading and unloading shaft are respectively a direction pointing to an assembling hole and a direction parallel to the rotating wheel shaft, a disc-shaped grinding wheel is movably arranged on the output end of the loading and unloading shaft, and a clamping mechanism for fixing the housing and driving the housing to move is arranged on the supporting table. The application has the effects of high automation degree, high integration degree and high grinding efficiency.

Description

Technical Field

[0001] This application relates to the field of differential housing machining, and in particular to equipment for machining spherical surfaces of one-piece differential housings. Background Technology

[0002] The differential housing is the outer casing of the differential assembly, primarily used to house and protect the internal differential gear set. Differential housings come in two types: one-piece (integral) and two-piece.

[0003] The manufacturing process of the differential housing includes casting, machining, post-processing, and quality inspection. Among these processes, the four inner spherical surfaces inside the housing require precision machining, which is also the most challenging part of the entire housing manufacturing process. Figure 1 This is a common type of one-piece differential housing, which includes a main housing, a flange ring, two half-shaft holes, two planetary shaft holes, and two mounting holes. Four inner spherical surfaces are located on the inner wall of the housing near the half-shaft holes and planetary shaft holes. Machining the inner spherical surfaces is typically done by turning. However, for high-requirement housings and standard housing parts, where the inner spherical surfaces require high precision, further finishing turning, scraping, or grinding is necessary to further modify the surface roughness. Finish turning is often combined with scraping or grinding. Due to the complex shape of the differential housing and the narrow access channels, scraping and grinding are mostly done manually or on multi-axis grinding machines such as five-axis CNC machine tools. When finishing hard materials (such as carburized steel and hardened steel), the cutting effect of finishing turning and scraping tools is poor, making grinding more suitable.

[0004] Grinding offers the highest geometric accuracy and stability. When used with thrust washers, such as oil-impregnated copper-based or graphite-infiltrated washers, the housing provides high precision and geometric consistency. A dynamic oil film is generated between the washer and the housing to provide high lubrication. Grinded housings can also directly contact gears without washers. In this case, the inner spherical surface of the housing has significantly reduced friction, making it suitable for applications requiring weight reduction, simplified assembly, and increased torsional rigidity, such as differential housings in some high-end vehicles.

[0005] Regarding the aforementioned technologies, the inventors believe that the following defects exist: during the precision machining of the spherical surface inside the housing, due to the complex shape of the housing and the narrow channel for entering the housing, the grinding wheel cannot easily enter the housing for grinding operations, resulting in low grinding efficiency. Summary of the Invention

[0006] To address the issue of low grinding efficiency, this application provides an integrated differential housing spherical machining equipment.

[0007] The integrated differential housing spherical machining equipment provided in this application adopts the following technical solution:

[0008] An integrated differential housing spherical machining equipment includes a machine bed with a support platform on the machine bed. Rotating axles are slidably mounted on both sides of the machine bed on the support platform. A loading and unloading shaft with two moving axes is mounted on the top wall of the machine bed. The moving directions of the loading and unloading shafts are respectively pointing towards the assembly hole and parallel to the rotating axles. A disc-shaped grinding wheel is movably mounted at the output end of the loading and unloading shaft. A clamping mechanism for fixing the housing and driving the housing movement is mounted on the support platform.

[0009] Optionally, the clamping mechanism includes a fixed sleeve fixed to the support platform, a reversing sleeve rotatably connected to the top of the fixed sleeve, a rotating sleeve rotatably connected to the end of the reversing sleeve, and a pneumatic chuck fixed to the end of the rotating sleeve. The fixed sleeve has an inclined surface at one end near the support platform and a flat surface at the other end. The reversing sleeve has an inclined surface at one end near the fixed sleeve and a flat surface at the other end. When the reversing sleeve rotates on the fixed sleeve, the angle between the reversing sleeve and the fixed sleeve is between a right angle and a flat angle.

[0010] The assembly hole is always located outside the pneumatic chuck in the central air. The wall of the fixed sleeve is provided with a clearance hole. When the reversing sleeve is rotated to be perpendicular to the fixed sleeve, the clearance hole is directly opposite the half shaft hole.

[0011] The clamping mechanism further includes a reversing component for driving the reversing sleeve to rotate, a rotation component for driving the rotating sleeve to rotate, and a lifting component for driving the fixed sleeve to rise and fall.

[0012] Optionally, the reversing assembly includes a drive gear rotatably mounted on the fixed sleeve and a driven gear ring fixedly mounted on the reversing sleeve. The driven gear ring is located at one end of the inclined surface of the reversing sleeve. The drive gear meshes with the driven gear ring, and the drive gear is externally connected to a power source.

[0013] Optionally, the rotation assembly includes a motor fixed to the reversing sleeve, a rotation gear fixed to the output end of the motor, and a rotation gear ring fixed to the rotation sleeve, wherein the rotation gear meshes with the rotation gear ring.

[0014] Optionally, the free end of the rotating wheel shaft is fixed with multiple splines. The part of the grinding wheel corresponding to the half-shaft hole / planetary shaft hole is a plane, and the part corresponding to the spherical surface inside the housing is a spherical surface. The plane of the grinding wheel is provided with a keyway that matches the splines.

[0015] Optionally, the support platform is tilted toward the side where the housing is loaded and unloaded.

[0016] Optionally, a central frame adapted to the rotating wheel axle is fixedly connected to both sides of the support platform.

[0017] Optionally, a wheel frame is slidably mounted on the bed, and there are multiple loading and unloading shafts, all of which are mounted on the wheel frame. The moving direction of the wheel frame is parallel to the length direction of the rotating wheel shaft.

[0018] In summary, this application includes at least one of the following beneficial technical effects:

[0019] 1. First, the clamping mechanism is used to align the assembly hole of the housing with the loading and unloading shaft and the planetary shaft hole with the rotating wheel shaft. Then, the wheel loading step, grinding step, and wheel unloading step are performed in sequence to complete the grinding of the inner spherical surface corresponding to the planetary shaft hole. Next, the position of the housing is adjusted by the clamping mechanism so that the half shaft hole is aligned with the rotating wheel shaft. Finally, the wheel loading step, grinding step, and wheel unloading step are repeated in sequence to complete the grinding of the inner spherical surface corresponding to the half shaft hole. In the whole process, it is convenient for the grinding wheel to enter and exit the housing, the movement mode of the clamping mechanism is relatively simple, and the rotating wheel shaft does not need to perform complex movements. The operation process has a high degree of automation, a high degree of integration of the grinding device, and a high grinding efficiency.

[0020] 2. The coordination of the reversing assembly, the self-rotating assembly and the lifting assembly facilitates the precise movement of the housing and provides higher stability after rotation than conventional designs with multiple rotating shafts at multiple angles. The rotation of the self-rotating assembly driving the self-rotating sleeve also facilitates the discharge of debris from the housing through the assembly hole.

[0021] 3. By increasing the number of mounting and dismounting shafts, more diverse working conditions can be addressed. For example, when the inner spherical surface corresponding to the half-shaft hole has different dimensions than the inner spherical surface corresponding to the planetary shaft hole, grinding wheels of different sizes can be installed on different mounting and dismounting shafts. When the inner spherical surface of the housing needs to be rough and fine ground, rough grinding wheels and fine grinding wheels can be installed on different mounting and dismounting shafts respectively to complete grinding operations of different sizes / different grinding qualities. Moreover, the process of changing the grinding wheel inside the housing is simple and time-saving. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the shell of this application;

[0023] Figure 2 This is a schematic diagram of the overall structure of an embodiment of this application;

[0024] Figure 3 This application is primarily intended to illustrate the structural schematic diagram during the housing grinding process;

[0025] Figure 4 This is a cross-sectional structural diagram of this application;

[0026] Figure 5This application is mainly used to show the structural schematic diagram of the housing, rotating axle, spline and keyway;

[0027] Figure 6 This is a partial structural diagram of the machining process of the half-shaft hole in this application.

[0028] Reference numerals: 1. Bed; 11. Support platform; 111. Center frame; 12. Rotating axle; 13. Wheel frame; 131. Loading / unloading shaft; 14. Grinding wheel; 15. Spray pipe; 21. Fixed sleeve; 211. Clearance hole; 22. Reversing sleeve; 23. Rotating sleeve; 24. Central pneumatic chuck; 3. Reversing assembly; 31. Drive gear; 32. Driven gear; 33. Power source; 4. Rotating assembly; 41. Motor; 42. Rotating gear; 43. Rotating gear ring; 51. Spline; 52. Keyway; 6. Housing; 61. Flange ring; 62. Half-shaft hole; 63. Planetary shaft hole; 64. Assembly hole. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0030] This application discloses an integrated differential housing spherical machining equipment. (Refer to...) Figure 1 — Figure 4 The integrated differential housing spherical machining equipment includes a bed 1, on which a support platform 11 is fixedly connected. Rotating axles 12 are slidably mounted on both sides of the support platform 11. A two-axis loading / unloading shaft 131 is mounted on the inner top wall of the bed 1. The loading / unloading shaft 131 moves in the direction of the mounting hole 64 and parallel to the rotating axles 12, respectively. The output end of the loading / unloading shaft 131 is a pneumatic gripper that holds a disc-shaped grinding wheel 14. The movement of the loading / unloading shaft 131 can be pneumatically or hydraulically driven. Multiple liquid spray pipes 15 can also be mounted on the periphery of the support platform 11 on the bed 1. The liquid spray pipes 15 are corrugated pipes that are arbitrarily bent and retain their bent shape. Air blowing pipes can also be added to the periphery of the support platform 11. These air blowing pipes can be flexible metal hoses that are easy to bend. The liquid spray pipes 15 and / or air blowing pipes facilitate cooling of the grinding area and removal of impurities during the grinding operation.

[0031] The support platform 11 is inclined toward the side of the housing 6 that is being loaded and unloaded. The fixing method of the support platform 11 can be selected according to the actual working conditions and cost. The support platform 11 can be inclined and fixed to the bed 1, or it can be hinged to the bed 1 on one side. If the hinged method is used, a hydraulic cylinder is added between the bed 1 and the support platform 11 to facilitate the adjustment of the inclination angle of the support platform 11. In this application, the entire working surface of the bed 1 is inclined, so that the support platform 11 and the loading and unloading shaft 131 on the bed 1 are inclined toward the side of the housing 6 that is being loaded and unloaded. The support platform 11 is also provided with a clamping mechanism for fixing the housing 6 and driving the housing 6 to move.

[0032] The grinding process of the spherical surface inside the housing 6 is as follows: The housing 6 is placed on the clamping mechanism and fixed, so that the assembly hole 64 of the housing 6 is aligned with the loading and unloading shaft 131 and the planetary shaft hole 63 is aligned with the rotating wheel shaft 12. Then, the grinding wheel 14 is installed on the loading and unloading shaft 131, and the spray pipe 15 is aligned with the assembly hole 64. The loading and unloading shaft 131 is controlled to extend into the housing 6 from one of the assembly holes 64, and then the two rotating wheel shafts 12 are moved towards each other until the two rotating wheel shafts 12 press against the grinding wheel 14. Then, the clamping of the grinding wheel 14 by the loading and unloading shaft 131 is released and the loading and unloading shaft 131 is retracted. This process is called the wheel mounting step.

[0033] After the grinding wheel 14 is assembled, the two rotating wheel shafts 12 can be controlled to move and rotate synchronously to grind the inner spherical surface. The spray pipe 15 sprays liquid onto the grinding part through the assembly hole 64. This process is called the grinding step. Specifically, the grinding wheel 14 is first controlled to move to the inner spherical surface corresponding to one of the planetary shaft holes 63, and the grinding wheel 14 is made to rotate at high speed to grind the inner spherical surface. After grinding is completed, the grinding wheel 14 is controlled to move to the inner spherical surface corresponding to the other planetary shaft hole 63 to perform grinding operation.

[0034] After the inner spherical surface corresponding to the planetary shaft hole 63 is ground, the grinding wheel 14 is moved to the position corresponding to the assembly hole 64 by controlling the rotating wheel shaft 12. Then, the loading and unloading shaft 131 is controlled to clamp out the grinding wheel 14, and the rotating wheel shaft 12 is controlled to retract out of the housing 6. This process is called the wheel retraction step.

[0035] Finally, the clamping mechanism controls the housing 6 to flip and move, aligning the half-shaft hole 62 with the rotating wheel shaft 12, and then the wheel mounting step is run again. After that, the rotating wheel shaft 12 is controlled to perform a grinding step to grind the inner spherical surface corresponding to the half-shaft hole 62. After grinding is completed, the wheel retraction step is run to complete the full grinding operation of one housing 6. The operation process has a high degree of automation, a high degree of integration of grinding equipment, and high grinding efficiency and precision.

[0036] Reference Figure 1 , Figure 4 and Figure 6The clamping mechanism includes a fixed sleeve 21 fixed to the support platform 11, a reversing sleeve 22 rotatably connected to the top of the fixed sleeve 21, a rotating sleeve 23 rotatably connected to the end of the reversing sleeve 22, and a hollow pneumatic chuck 24 fixed to the end of the rotating sleeve 23. The hollow pneumatic chuck 24 is a commonly used existing clamping fixture on machine tools. Its main body includes a rotary cylinder and a spring sleeve. The rotary cylinder drives the spring sleeve to move pneumatically. The flared / wedge block on the rotary cylinder causes the spring sleeve to contract or expand, thereby clamping the workpiece. The specific principle will not be elaborated here. The hollow pneumatic chuck 24 can also be replaced with a hollow hydraulic chuck. In this application, the gap of the spring sleeve of the hollow pneumatic chuck 24 is additionally filled with rubber blocks to improve the clamping stability of the hollow pneumatic chuck 24. The fixed sleeve 21, the reversing sleeve 22, and the rotating sleeve 23 are all hard sleeves with a thickness of not less than 8mm to provide high stability and high precision support. The fixed sleeve 21 has an inclined surface at one end near the support platform 11 and a flat surface at the other end. The reversing sleeve 22 has an inclined surface at one end near the fixed sleeve 21 and a flat surface at the other end. When the reversing sleeve 22 rotates on the fixed sleeve 21, the angle between the reversing sleeve 22 and the fixed sleeve 21 is between a right angle and a straight angle. In this application, the angle between the flat surface and the inclined surface of the fixed sleeve 21 and the angle between the flat surface and the inclined surface of the reversing sleeve 22 are both 45°.

[0037] The clamping point of the pneumatic chuck 24 is located at the end of the flange ring 61 away from the mounting hole 64, ensuring that the mounting hole 64 is always outside the pneumatic chuck 24. A space for material leakage is provided between the fixed sleeve 21 and the support table 11. A clearance hole 211 is provided on the wall of the fixed sleeve 21. When the reversing sleeve 22 rotates to be perpendicular to the fixed sleeve 21, the clearance hole 211 is aligned with the half-shaft hole 62, facilitating the entry of the rotating wheel shaft 12 into the housing 6 through the clearance hole 211. The clamping mechanism also includes a reversing assembly 3 for driving the reversing sleeve 22 to rotate, a rotation assembly 4 for driving the self-rotating sleeve 23 to rotate, and a lifting assembly for driving the fixed sleeve 21 to rise and fall. The lifting assembly can be a hydraulic cylinder located between the bed 1 and the bottom of the fixed sleeve 21.

[0038] When grinding the inner spherical surface corresponding to the planetary shaft hole 63, the reversing assembly 3 drives the reversing sleeve 22 to rotate until it is parallel to the fixed sleeve 21. At this time, the wheel mounting step, grinding step, and wheel retraction step are completed in sequence to grind the inner spherical surface corresponding to the planetary shaft hole 63. When grinding the inner spherical surface corresponding to the half-shaft hole 62, the lifting assembly first drives the fixed sleeve 21 to rise, and the reversing assembly 3 drives the reversing sleeve 22 to rotate, so that the half-shaft hole 62 is aligned with the rotating wheel shaft 12. During this process, the housing 6 also rotates with the rotation of the reversing sleeve 22, and the spray pipe 15 continuously sprays liquid to clean the debris inside the housing 6. Then, the rotation assembly 4 drives the rotation sleeve 23 to rotate, so that the housing 6 rotates forward / reverse around the half-shaft hole 62 as the axis, to further clean the inside of the housing 6 with the spray pipe 15 and reduce the interference to the subsequent grinding steps. After the self-rotating sleeve 23 rotates a specified number of times and keeps the assembly hole 64 aligned with the loading / unloading shaft 131, the subsequent wheel mounting, grinding, and wheel retraction steps can be performed. The movement of the housing 6 is relatively smooth and precise, and its stability is higher than that of a conventional rotating shaft. Combined with the continuously spraying liquid pipe 15, it is easy to effectively remove debris that splashes and adheres to the inner wall of the housing 6. During this process, the liquid pipe 15 does not need to swing.

[0039] Reference Figure 1 and Figure 4 The reversing assembly 3 includes a drive gear 31 rotatably mounted on the fixed sleeve 21, a driven gear ring fixedly connected to the reversing sleeve 22, and a power source 33 for rotating the drive gear 31. The power source 33 can be a servo motor 41 fixedly connected to the fixed sleeve 21 and having a self-locking function, such as a worm gear reducer or a servo motor 41 equipped with an electromagnetic brake. The output end of the motor 41 is fixedly connected to the drive gear 31. The driven gear ring is located at one end of the inclined surface of the reversing sleeve 22. The drive gear 31 meshes with the driven gear ring, and the drive gear 31 and the driven gear 32 are coplanar. The rotation assembly 4 includes a motor 41 fixedly connected to the reversing sleeve 22, a rotation gear 42 fixedly connected to the output end of the motor 41, and a rotation gear ring 43 fixedly connected to the rotation sleeve 23. The rotation gear 42 meshes with the rotation gear ring 43. The motor 41 on the reversing sleeve 22 and the motor 41 on the fixed sleeve 21 can be of the same model.

[0040] When it is necessary to replace the planetary shaft hole 63 on the housing 6 that is aligned with the rotating wheel shaft 12 with the half shaft hole 62, simply control the motor 41 on the fixed sleeve 21 to run, thereby causing the drive gear 31 to drive the driven gear 32 to rotate, so as to complete the adjustment and flipping of the position of the reversing sleeve 22; when it is necessary to further remove debris from the housing 6, control the motor 41 on the reversing sleeve 22 to run, so that the rotating gear 42 drives the rotating gear ring 43 to rotate, which in turn drives the rotating sleeve 23 to rotate, so that the liquid sprayed from the spray pipe 15 can cover the inner wall of the housing 6 and cause the debris to fall from the assembly hole 64, the planetary shaft hole 63 / half shaft hole 62.

[0041] Reference Figure 3 and Figure 5 The free end of the rotary shaft 12 is fixed with multiple splines 51. The part of the grinding wheel 14 corresponding to the half-shaft hole 62 / planetary shaft hole 63 is flat, and the part corresponding to the spherical surface inside the housing 6 is spherical. In this application, the flat part of the spline 51 has a socket adapted to the rotary shaft 12, and the flat part of the grinding wheel 14 has a keyway 52 adapted to the spline 51. The support table 11 has a center frame 111 adapted to the rotary shaft 12 fixed on both sides of the housing 6. The center frame 111 is also a structure commonly used in machine tools to improve the stability of the free end of the rotating shaft. That is, a frame surrounding the rotary shaft 12. There are multiple support rollers that can be synchronously contracted / expanded between the frame and the rotary shaft 12. The stability of the rotary shaft 12 during rotation is improved by the support rollers surrounding the rotary shaft 12. The center frame 111 is usually of hydraulic, pneumatic, screw drive and other types, which will not be described in detail here.

[0042] When the two rotating shafts 12 clamp the grinding wheel 14, the spline 51 is inserted into the keyway 52 to improve the stability of the grinding wheel 14 when the rotating shafts 12 rotate at high speed and to prevent the grinding wheel 14 from slipping during grinding. The spline 51 has a chamfer at the end near the grinding wheel 14 to facilitate the insertion of the spline 51 into the keyway 52. ​​To further improve the stability of the housing 6, multiple lever cylinders can be installed on the support platform 11. When the two planetary shaft holes 63 are facing horizontally, some lever cylinders press down on the flange ring 61; when the two half-shaft holes 62 are facing horizontally, other lever cylinders press down on the hole wall of the mounting hole 64, thereby further improving the stability of the housing 6 during grinding.

[0043] Reference Figure 1 and Figure 3 The two-axis movement drive method of the loading and unloading shaft 131 is as follows: in the direction parallel to the rotating wheel shaft 12, a wheel frame 13 is slidably connected on the bed 1, and a cylinder is set between the bed 1 and the wheel frame 13. The movement of the wheel frame 13 is controlled by the extension and retraction of the cylinder, thereby completing the movement of the loading and unloading shaft 131 in the direction parallel to the rotating wheel shaft 12; in the direction pointing to the assembly hole 64, the loading and unloading shaft 131 body is set as a cylinder.

[0044] Multiple loading and unloading shafts 131 can be set, and all loading and unloading shafts 131 are set on the wheel frame 13. Each loading and unloading shaft 131 can hold different grinding wheels 14. For example, if the inner spherical surface corresponding to the half shaft hole 62 and the inner spherical surface corresponding to the planetary shaft hole 63 are different in size, then grinding wheels 14 of different sizes are installed on different loading and unloading shafts 131. When the inner spherical surface of the housing 6 needs to be rough and fine ground, the rough grinding wheel 14 and the fine grinding wheel 14 can be installed on different loading and unloading shafts 131 respectively. That is, after the two opposing inner spherical surfaces are rough ground, the loading and unloading shaft 131 removes the rough grinding wheel 14, and the loading and unloading shaft 131 holding the fine grinding wheel 14 enters the housing 6 to perform the wheel mounting step, and then the grinding step is completed to complete the fine grinding. The process of changing the grinding wheel 14 is simple and takes less time.

[0045] The implementation principle of the integrated differential housing spherical machining equipment in this application embodiment is as follows: the housing 6 is placed on the pneumatic chuck 24 and fixed so that the assembly hole 64 of the housing 6 is aligned with the loading and unloading shaft 131 and the planetary shaft hole 63 is aligned with the rotating wheel shaft 12. Then, the grinding wheel 14 is installed on the loading and unloading shaft 131 and the spray pipe 15 is aligned with the assembly hole 64.

[0046] After the grinding wheel 14 is assembled, the spray pipe 15 sprays liquid onto the grinding part through the assembly hole 64. First, the grinding wheel 14 is controlled to move to the inner spherical surface corresponding to one of the planetary shaft holes 63, and the grinding wheel 14 is made to rotate at high speed to grind the inner spherical surface. After grinding is completed, the grinding wheel 14 is controlled to move to the inner spherical surface corresponding to another planetary shaft hole 63 to perform grinding operation.

[0047] After the inner spherical surface corresponding to the planetary shaft hole 63 is ground, the grinding wheel 14 is moved to the position corresponding to the assembly hole 64 by controlling the rotating wheel shaft 12. Then, the loading and unloading shaft 131 is controlled to clamp the grinding wheel 14, and the rotating wheel shaft 12 is controlled to retract outside the housing 6. Then, the motor 41 on the fixed sleeve 21 is controlled to run, which in turn causes the drive gear 31 to drive the driven gear 32 to rotate, so as to complete the adjustment and flipping of the position of the reversing sleeve 22. The motor 41 on the reversing sleeve 22 controls the rotation of the self-rotating sleeve 23 so that the liquid sprayed from the spray pipe 15 can cover the inner wall of the housing 6 and cause the debris to fall from the assembly hole 64.

[0048] Finally, the rotating wheel shaft 12 is controlled to perform a grinding step to grind the inner spherical surface corresponding to the half shaft hole 62. After grinding is completed, the wheel retraction step is run to complete the full grinding operation of a housing 6. The operation process has a high degree of automation, a high degree of integration of the grinding device, and high grinding efficiency and precision.

[0049] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An integrated differential housing spherical machining equipment, comprising a machine bed (1), characterized in that: The bed (1) is provided with a support platform (11). Rotating wheel shafts (12) are slidably provided on both sides of the support platform (11). The inner top wall of the bed (1) is provided with a loading and unloading shaft (131) with two axes of movement. The moving directions of the loading and unloading shaft (131) are respectively pointing towards the assembly hole (64) and parallel to the rotating wheel shaft (12). A disc-shaped grinding wheel (14) is movably provided at the output end of the loading and unloading shaft (131). The support platform (11) is provided with a clamping mechanism for fixing the housing (6) and driving the housing (6) to move. The clamping mechanism includes a fixed sleeve (21) fixed to the support platform (11), a reversing sleeve (22) rotatably connected to the top of the fixed sleeve (21), a rotating sleeve (23) rotatably connected to the end of the reversing sleeve (22), and a pneumatic chuck (24) fixed to the end of the rotating sleeve (23). The fixed sleeve (21) has an inclined surface at one end near the support platform (11) and a flat surface at the other end. The reversing sleeve (22) has an inclined surface at one end near the fixed sleeve (21) and a flat surface at the other end. When the reversing sleeve (22) rotates on the fixed sleeve (21), the angle between the reversing sleeve (22) and the fixed sleeve (21) is between a right angle and a flat angle. The assembly hole (64) is always located outside the pneumatic chuck (24) in the middle. The wall of the fixed sleeve (21) is provided with a clearance hole (211). When the reversing sleeve (22) rotates to be perpendicular to the fixed sleeve (21), the clearance hole (211) is directly opposite the half shaft hole (62). The clamping mechanism further includes a reversing component (3) for driving the reversing sleeve (22) to rotate, a rotation component (4) for driving the rotating sleeve (23) to rotate, and a lifting component for driving the fixed sleeve (21) to rise and fall. The reversing assembly (3) includes a drive gear (31) rotatably mounted on the fixed sleeve (21) and a driven gear ring fixed on the reversing sleeve (22). The driven gear ring is located at one end of the inclined surface of the reversing sleeve (22). The drive gear (31) meshes with the driven gear ring. The drive gear (31) is externally connected to a power source (33). The self-rotating assembly (4) includes a motor (41) fixed to the reversing sleeve (22), a self-rotating gear (42) fixed to the output end of the motor (41), and a self-rotating gear ring (43) fixed to the self-rotating sleeve (23), wherein the self-rotating gear (42) and the self-rotating gear ring (43) are meshed together.

2. The integrated differential housing spherical machining equipment according to claim 1, characterized in that: The free end of the rotating shaft (12) is fixed with multiple splines (51), and the plane of the grinding wheel (14) is provided with a keyway (52) that matches the splines (51).

3. The integrated differential housing spherical machining equipment according to claim 1, characterized in that: The support platform (11) is tilted toward the side of the housing (6) that is being loaded and unloaded.

4. The integrated differential housing spherical machining equipment according to claim 1, characterized in that: The support platform (11) has a central frame (111) that is adapted to the rotating wheel axle (12) fixed on both sides of the housing (6).

5. The integrated differential housing spherical machining equipment according to claim 1, characterized in that: A wheel frame (13) is slidably mounted on the bed (1). There are multiple loading and unloading shafts (131), and all of the loading and unloading shafts (131) are mounted on the wheel frame (13). The moving direction of the wheel frame (13) is parallel to the length direction of the rotating wheel shaft (12).

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