CN-121199812-B - Spherical surface processing equipment for differential mechanism shell

CN121199812BCN 121199812 BCN121199812 BCN 121199812BCN-121199812-B

Abstract

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

Inventors

CHEN CONGLIN
XIE BINGQING
XIE MAOMAO
WANG CHANGGUO
SHU ZONGMIN
WANG YOUWEI

Assignees

郧西精诚汽配有限公司

Dates

Publication Date: 20260508
Application Date: 20251121

Claims (5)

1. The integrated differential mechanism shell spherical surface machining equipment comprises a bed body (1) and is characterized in that a supporting table (11) is arranged on the bed body (1), rotating wheel shafts (12) are slidably arranged on two sides of the supporting table (11) on the bed body (1), a loading and unloading shaft (131) for moving two shafts is arranged on the inner top wall of the bed body (1), the moving direction of the loading and unloading shaft (131) is a direction pointing to an assembly hole (64) and parallel to the rotating wheel shafts (12), a disc-shaped grinding wheel (14) is movably arranged at the output end of the loading and unloading shaft (131), and a clamping mechanism for fixing a shell (6) and driving the shell (6) to move is arranged on the supporting table (11); The clamping mechanism comprises a fixed sleeve (21) fixedly connected to the supporting table (11), a reversing sleeve (22) rotatably connected to the top end of the fixed sleeve (21), a rotation sleeve (23) rotatably connected to the end part of the reversing sleeve (22) and an air-operated chuck (24) fixedly connected to the end part of the rotation sleeve (23), one end, close to the supporting table (11), of the fixed sleeve (21) is an inclined plane, the other end is a plane, one end, close to the fixed sleeve (21), of the reversing sleeve (22) is an inclined plane, the other end is a plane, and when the reversing sleeve (22) rotates on the fixed sleeve (21), the angle range 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 positioned outside the hollow pneumatic chuck (24), a yielding hole (211) is formed in the wall of the fixed sleeve (21), and when the reversing sleeve (22) rotates to be perpendicular to the fixed sleeve (21), the yielding hole (211) is opposite to the half shaft hole (62); the clamping mechanism further comprises a reversing assembly (3) for driving the reversing sleeve (22) to rotate, a autorotation assembly (4) for driving the autorotation sleeve (23) to rotate and a lifting assembly for driving the fixed sleeve (21) to lift; the reversing assembly (3) comprises a driving gear (31) rotatably arranged on the fixed sleeve (21) and a driven gear ring fixedly connected on the reversing sleeve (22), the driven gear ring is positioned at one end of the inclined surface of the reversing sleeve (22), the driving gear (31) is in meshed connection with the driven gear ring, and the driving gear (31) is externally connected with a power source (33); The rotation assembly (4) comprises 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), and the rotation gear (42) is meshed with the rotation gear ring (43).
2. The integrated differential case spherical surface machining device according to claim 1, wherein a plurality of splines (51) are fixedly connected to the free end of the rotary wheel shaft (12), and key grooves (52) matched with the splines (51) are formed in the plane of the grinding wheel (14).
3. The integrated differential case spherical surface processing apparatus according to claim 1, wherein the support table (11) is provided obliquely toward a side of the case (6) to which the case is attached and detached.
4. The integrated differential case spherical surface processing device according to claim 1, wherein the supporting table (11) is fixedly connected with a center frame (111) which is matched with the rotary wheel shaft (12) on two sides of the case (6) respectively.
5. The integrated differential case spherical surface machining apparatus according to claim 1, wherein a plurality of wheel frames (13) are slidably provided on the bed body (1), the plurality of loading and unloading shafts (131) are provided on the wheel frames (13), and the moving direction of the wheel frames (13) is parallel to the length direction of the rotating wheel shafts (12).

Description

Spherical surface processing equipment for differential mechanism shell Technical Field The application relates to the field of differential mechanism shell machining, in particular to integrated differential mechanism shell spherical surface machining equipment. Background The differential housing is the outer housing of the differential assembly and is primarily used to house and protect the differential gear set therein. The differential case is divided into an integral (unitary) and a split type structure. The production process of the differential shell comprises casting, machining, post-treatment and quality inspection. In which the four internal spheres within the shell are required to be finished during machining, which is also the most troublesome part of the overall shell machining process. Fig. 1 is a schematic view of a common integrated differential housing, which includes a main housing portion, a flange ring, two half shaft holes, two planetary shaft holes and two assembly holes, wherein four inner spherical surfaces are respectively located at the positions of the inner wall of the housing, which are close to the half shaft holes and the planetary shaft holes. In the machining of the inner sphere, turning is usually adopted, and if the high-requirement shell and the standard shell piece are machined, namely the requirement of the inner sphere is high, further finish turning, scraping or grinding is needed, so that the surface roughness of the inner sphere is further changed, and the finish turning is further matched with scraping or grinding. Because the shape of the differential mechanism shell is complex, and the channel entering the inside of the shell is narrow, in many cases, the scraping and grinding adopts a manual mode or a five-axis numerical control machine tool and other multi-axis grinding machines, wherein when the hard (such as carburizing steel, quenching steel and the like) shell is precisely processed, the cutting effect of a finish turning and scraping tool is poor, and the grinding machine is more suitable for grinding operation. The stability of the geometric accuracy of grinding is highest, and when the grinding machine is used together with a thrust washer like a conventional shell, such as an oil-containing copper-based or graphite-impregnated material washer, the shell provides high accuracy and geometric consistency, and a dynamic oil film is generated between the washer and the shell through the washer so as to provide high lubrication. The ground shell can be directly contacted with the gear without being matched with a gasket, at the moment, the inner spherical surface part of the shell has small friction, and the grinding device is suitable for working conditions such as weight reduction, assembly simplification, torque rigidity improvement and the like, such as a differential shell of a part of high-end vehicle types. In view of the above related art, the inventor considers that there is a disadvantage in that in the finishing process of the spherical surface in the shell, the grinding wheel is inconvenient to enter the shell for grinding operation due to the fact that the shape of the shell is complex and the channel penetrating into the shell is narrow, so that the grinding efficiency is low. Disclosure of Invention In order to solve the problem of low grinding efficiency, the application provides integrated differential housing sphere machining equipment. The application provides an integrated differential case spherical surface processing device which adopts the following technical scheme: The integrated differential mechanism shell spherical surface machining equipment comprises a bed body, wherein a supporting table is arranged on the bed body, rotating wheel shafts are arranged on two sides of the supporting table in a sliding mode, a loading and unloading shaft moving through two shafts is arranged on the inner top wall of the bed body, the moving direction of the loading and unloading shaft is respectively in a direction of a direction assembly hole and a direction parallel to the rotating wheel shafts, a disc-shaped grinding wheel is movably arranged at the output end of the loading and unloading shaft, and a clamping mechanism used for fixing a shell and driving the shell to move is arranged on the supporting table. Optionally, the clamping mechanism includes a fixed sleeve fixedly connected to the supporting table, a reversing sleeve rotatably connected to the top end of the fixed sleeve, a rotation sleeve rotatably connected to the end of the reversing sleeve, and a hollow pneumatic chuck fixedly connected to the end of the rotation sleeve, one end of the fixed sleeve, which is close to the supporting table, is an inclined plane, the other end of the reversing sleeve, which is close to the fixed sleeve, is an inclined plane, the other end of the reversing sleeve is a plane, and when the reversing sleeve rotates on the fixed sleeve, an angle range be