CN-117718705-B - Automatic grinding process for differential mechanism shell of new energy automobile

CN117718705BCN 117718705 BCN117718705 BCN 117718705BCN-117718705-B

Abstract

The invention discloses an automatic grinding process of a differential mechanism shell of a new energy automobile, which comprises the following steps of collecting the differential mechanism shell to be processed into a feeding machine, feeding a side turning mechanism through the feeding machine, feeding and discharging by side turning and end face grinding through a mechanical arm, and then grinding the side face and the end face of the differential mechanism shell through the side turning mechanism and the end face grinding mechanism respectively. According to the invention, the side turning mechanism and the end polishing mechanism are arranged in a modularized processing mode, the turning assembly is adopted to continuously turn a plurality of areas on the side surfaces of the differential shells in an end surface clamping mode, and then the end surface grinding operation of the differential can be simultaneously carried out after the clamping mode is changed, so that the automatic grinding process of the whole differential shell is coherent and compact, the production of a plurality of differential shells can be carried out in batches, and the efficiency is high.

Inventors

ZHOU YONGGANG
HONG ZHOU
WU XIANGHUI
FENG YIXIAO
KE JUN
HU BIN
YAO WENKAI
CHEN XIN
JIANG ZIJIE
CHENG CHUNLI
ZHOU YUXIANG
HU WEI
CHENG JINDONG
HONG XIANGMING
HU JIANGUO
WANG YIXIONG

Assignees

安徽省小小科技股份有限公司

Dates

Publication Date: 20260512
Application Date: 20240118

Claims (8)

1. The automatic grinding process for the differential mechanism shell of the new energy automobile is characterized by comprising the following steps of: the shells are sequentially fed, the differential shells to be processed after casting are collected into a feeding machine, and the differential shells are sequentially conveyed to a feeding groove of the feeding machine; The shell is adjusted to be clamped, the feeding groove is divided into a waiting area and a clamping area through a baffle plate, the differential shell positioned in the clamping area is rotationally adjusted until the hole position on the side surface of the differential shell is upward, and the mechanical arm is waited to clamp; the mechanical arm clamps and transfers, and drives the second clamping plate to align with and insert into the hole site, so that the second clamping plate is supported in the hole site to clamp the shell; turning the side surface of the shell, clamping and transferring a shell workpiece to a side surface turning station by a mechanical arm, and clamping hole sites at two ends of the shell by rotating a clamping round table; the machining station is replaced, the shell is rotated to enable the hole position of the side face of the shell to face upwards, the mechanical arm clamps the shell through the clamping plate aiming at the hole position, and a workpiece is transferred from the side face turning station to the polishing station; polishing the end surfaces of the shell, clamping the side surfaces of the shell through clamping blocks, and polishing the end surfaces of the two ends of the workpiece through polishing wheels at the two ends; And (3) blanking by using a mechanical arm, and directly blanking a shell workpiece by using a common hand-type mechanical arm after finishing polishing the end face.
2. The automatic grinding process for a differential case of a new energy automobile according to claim 1, wherein the automatic grinding process is performed by using an automatic grinding apparatus for a differential case of a new energy automobile, the automatic grinding apparatus comprising: a side turning mechanism (3) and an end surface polishing mechanism (4); The side turning mechanism (3) comprises a turning assembly (32) and a plurality of groups of paired first clamping plates (34) for positioning and clamping the differential shell, a rotary clamping round table (38) is rotatably arranged on the inner side of the first clamping plates (34), and the turning assembly (32) is arranged above the differential shell; the clamping mode of the differential shells on the side turning mechanism (3) is axial alignment; the end face polishing mechanism (4) comprises polishing wheels (46) and a plurality of paired clamping blocks (47) for positioning and clamping the differential shell, wherein the polishing wheels (46) are arranged at two ends of the differential shell; The clamping modes of the differential shells of the end surface polishing mechanism (4) are radial alignment; The turning assembly (32) is arranged as a replaceable lathe, and the turning position of the turning assembly (32) can be adjusted along the radial direction of the differential housing.
3. The automatic grinding process of the new energy automobile differential shell according to claim 2, wherein the automatic grinding equipment further comprises a feeding machine (1) and a material taking mechanism (5); The feeding machine (1) comprises a feeding groove (11) and two groups of baffle plates (13), wherein the two groups of baffle plates (13) divide the interior of the feeding groove (11) into a waiting area and a clamping area, the area between the two groups of baffle plates (13) is the clamping area, the bottom of the clamping area is provided with a rotation adjusting assembly (15) for driving a shell workpiece to rotate, the inner sides of the two groups of baffle plates (13) are provided with correlation sensors (14), and the correlation sensors (14) are used for controlling the starting and closing of the rotation adjusting assembly (15); The material taking mechanism (5) comprises a mechanical arm (51) and two groups of second clamping plates (54) which are adjusted through clamping push rods (56), and the outer shape of each second clamping plate (54) is correspondingly arranged with the shape of a side hole site of the differential mechanism.
4. The automatic grinding process for the new energy automobile differential shell according to claim 2 is characterized in that the automatic grinding equipment further comprises a linear moving module (2), the side turning mechanism (3) comprises a bottom plate (31) and is installed on a moving sliding block of the linear moving module (2) through the bottom plate (31), the side turning mechanism (3) further comprises an installation groove (35) fixedly connected to one side of the bottom plate (31), a first adjusting screw (33) and a first driving motor (39) for clamping and moving a first clamping plate (34) are installed on the installation groove (35), and a rotating motor (36) for driving a rotating clamping round table (38) to rotate is arranged on the side of the first clamping plate (34).
5. The automatic grinding process for the differential housing of the new energy automobile according to claim 4, wherein a gear housing (37) is installed on the side surface of the first clamping plate (34), two groups of bevel gears (310) which are in meshed transmission are installed in the gear housing (37) in a rotating mode, the rotating motor (36) is installed outside the gear housing (37), and the rotating motor (36) drives the rotating clamping round table (38) to rotate through the two groups of bevel gears (310).
6. The automatic grinding process of the new energy automobile differential mechanism shell according to claim 2, wherein the end face grinding mechanism (4) comprises a base (41), two groups of movable seats (42) are slidably mounted on the top of the base (41) through a positioning rod (43), a second adjusting screw (44) penetrates through threads between the two groups of movable seats (42), a second driving motor (45) for driving the second adjusting screw (44) to rotate is mounted on the base (41), a plurality of groups of paired clamping blocks (47) are arranged on the base (41) and located on the inner side of a grinding wheel (46), and driving screws (48) for clamping block movement are mounted on the clamping blocks (47).
7. The automatic grinding process for the differential housing of the new energy automobile according to claim 6, wherein the grinding wheels (46) are provided with a plurality of groups, the positions of the grinding wheels (46) of the groups are arranged corresponding to the clamping positions of the assembling clamping blocks (47), and the movable seat (42) is provided with a grinding motor (49) for driving the grinding wheels (46) to rotate.
8. The automatic grinding process of the new energy automobile differential housing according to claim 2, wherein the automatic grinding equipment further comprises a material collecting groove (6) and two groups of mechanical arms (51), wherein the clamping reciprocating position of one mechanical arm is the clamping position from the material outlet of the material loading machine (1) to the side turning mechanism (3), the clamping reciprocating position of the other mechanical arm is the clamping position from the material outlet of the end face polishing mechanism (4) to the side turning mechanism (3), and the material outlet of the end face polishing mechanism (4) is the material collecting groove (6).

Description

Automatic grinding process for differential mechanism shell of new energy automobile Technical Field The invention relates to the technical field of differential grinding, in particular to an automatic grinding process for a differential shell of a new energy automobile. Background The differential mechanism assembly is used as a key part of a power assembly of a new energy automobile, has great influence on the performance of the whole automobile, is mainly designed and manufactured by referring to a traditional automobile differential mechanism assembly at present, and because a differential mechanism shell blank is a casting and needs to be ground in the subsequent processing technology, as shown in fig. 8, an actual differential mechanism shell needs to be ground to be a shell side surface and a shell end surface, the shell side surface comprises a small end excircle, a large end excircle, an excircle of an excircle body part and a special-shaped surface of a special-shaped part, the shell end surface comprises a small end surface and a large end surface, and meanwhile, the side surface of the differential mechanism shell is provided with hole sites, and the two ends of the differential mechanism shell are also provided with hole sites. According to the grinding system and the grinding method for the blank of the differential case, which are disclosed by the invention, the two end surfaces and the outer surface of the differential case are automatically ground, so that the production automation level, the production efficiency and the product quality are improved. However, the technical scheme still has the following technical problems that when the shell is ground, the small end excircle, the large end excircle, the excircle of the outer cylindrical part, the special-shaped surface of the special-shaped part and the two end surfaces of the shell of the differential mechanism shell are respectively ground, so that the whole process is complicated, the grinding of the shell in batches is difficult to continuously carry out, the processing is not consistent, and the whole grinding production efficiency is low. Disclosure of Invention In order to overcome the technical problems, the invention aims to provide an automatic grinding process for a differential mechanism shell of a new energy automobile, which is characterized in that a side turning mechanism and an end grinding mechanism are arranged in a modularized processing mode, and a plurality of areas on the side surfaces of the differential mechanism shells are respectively subjected to continuous turning operation and end grinding operation, so that the production of a plurality of differential mechanism shells can be carried out in batches, the processing process is coherent and compact, and the efficiency is higher. The aim of the invention can be achieved by the following technical scheme: An automatic grinding process for a differential mechanism shell of a new energy automobile comprises the following steps: the shells are sequentially fed, the differential shells to be processed after casting are collected into a feeding machine, and the differential shells are sequentially conveyed to a feeding groove of the feeding machine; The shell is adjusted to be clamped, the feeding groove is divided into a waiting area and a clamping area through a baffle plate, the differential shell positioned in the clamping area is rotationally adjusted until a hole position on the differential shell faces upwards, and the mechanical arm is waited to clamp; the mechanical arm clamps and transfers, the side hole position of the differential mechanism shell after being adjusted is upward, the mechanical arm clamps the shell by aligning the clamping plate with the hole position, and the clamping precision of the shell workpiece is better ensured by clamping the hole position. Turning the side surface of the shell, transferring the clamping of the shell workpiece to a side surface turning station by the mechanical arm, clamping hole sites at two ends of the shell by rotating the clamping round table, and clamping the clamping round table aiming at the hole sites to ensure the coaxiality of the clamping of a plurality of shell workpieces, thereby ensuring the accuracy of turning operation; The machining station is replaced, the shell is rotated to enable the hole position of the side face of the shell to face upwards, the mechanical arm clamps the shell through the clamping plate aiming at the hole position, a workpiece is transferred from the turning station to the polishing station, and the turned side face of the shell can obtain higher clamping precision during clamping so as to ensure the precision of polishing of the subsequent end face; polishing the end surfaces of the shell, clamping the side surfaces of the shell through clamping blocks, and polishing the end surfaces of the two ends of the workpiece through polishing wheels at the two ends; And (3) blanking by