Universal fixture system for machining of motor shell

Abstract

The utility model provides a universal fixture system for machining of motor casing, which comprises a bottom plate, a turnover device and a fixture device, the turnover device comprises a turnover driving device, two turnover supports and two turnover rocker arms, the fixture device comprises a support plate, a shockproof column, an inductive probe and a locking component, and the fixture device is pressed by a locking block and is fixed on the support plate through the shockproof column, the inductive probe and the locking component. According to the invention, the motor shell is arranged on the support plate, then the motor shell is stably arranged on the support plate, and the motor shell is detected by the plurality of inductive probes on the shockproof columns, so that the specific height and diameter data of the motor shell can be obtained, and meanwhile, the motor shell can be adapted to motor shells of different models through the installation positions of different inductive probes; and then the machining precision can be improved through output of detection data.

Description

Technical Field

[0001] This utility model relates to the field of machining equipment, and in particular to a universal fixture system for machining motor housings. Background Technology

[0002] The basic manufacturing process of the main drive motor housing of new energy vehicles is as follows: the part blank is produced by extrusion / die casting, then high-precision machining is used, and finally surface treatment is carried out. In the machining process, special high-precision tooling is required to position and fix the water-cooled housing blank to ensure machining accuracy.

[0003] However, due to the rapid pace of product updates and iterations in the new energy industry, the monthly demand for most products is relatively small. While motor housings may have similar shapes, they come in various specifications. Each specification requires the creation of corresponding specialized high-precision machining fixtures, resulting in high costs, long development cycles, and increased production costs. Therefore, it is necessary to design a universal machining fixture system to address the compatibility issues of various motor housing specifications. Utility Model Content

[0004] The purpose of this invention is to provide a universal fixture system for machining motor housings.

[0005] To achieve the purpose of this utility model, this utility model provides a universal fixture system for machining motor housings, including a base plate, a flipping device, and a fixture device. The flipping device includes a flipping drive device, two flipping supports, and two flipping rocker arms. The two flipping supports are vertically mounted on the base plate, and one flipping rocker arm is rotatably mounted on one of the flipping supports around a horizontal axis. The flipping drive device is connected to the flipping rocker arm and drives the flipping rocker arm to rotate. The fixture device includes a support plate, at least two anti-vibration columns, at least two sensing probes, and a locking assembly. The support plate extends horizontally and has a through hole extending vertically. The support plate is connected to the two flipping rocker arms and flips with the rotation of the flipping rocker arms. The anti-vibration columns extend vertically and are fixedly mounted on the support plate. At least two anti-vibration columns are symmetrically arranged at the edge of the through hole, forming a housing placement position between the at least two anti-vibration columns. One sensing probe is mounted on one of the anti-vibration columns, facing the housing placement position. The locking assembly includes at least two locking modules, which are fixedly mounted on the support plate and symmetrically located at the edge of the through hole. The sensing probe is located above the locking modules.

[0006] A further solution is to have multiple mounting holes arranged vertically on the anti-vibration columns, with the sensor probe installed inside the mounting holes.

[0007] A further embodiment is that the clamping device also includes at least two protective supports arranged in an L-shape. The protective supports include interconnected horizontal and vertical plates. The horizontal plates are fixedly connected to the anti-vibration columns. The vertical plates have through holes running horizontally through them. The detection part of the sensing probe passes through the through holes. The vertical plates are located on the inner side of the sensing probe body.

[0008] A further proposed solution is to arrange the perforations in a U-shape.

[0009] A further approach is to use a contact displacement sensor as the sensing probe.

[0010] A further proposed solution is that the clamping device includes at least four anti-vibration pillars and at least four sensing probes, with the at least four anti-vibration pillars being rotationally symmetrically arranged at the edge of the through hole.

[0011] A further alternative is that the locking assembly includes at least four locking modules, which are rotationally symmetrically arranged at the edge of the through hole, and the locking modules are staggered with the anti-vibration columns.

[0012] A further proposed solution is that the locking module includes a fixed plate, a locking block, a hydraulic drive device, and a hinged swing arm. The fixed plate is fixedly mounted on the support plate. The locking block has a holding end and a driving end at both ends. A hinged end is provided between the holding end and the driving end of the locking block. The hydraulic drive device is hinged to the driving end and drives the driving end to move in the vertical direction. The hinged swing arm is hinged between the hinged end and the fixed plate. The holding end rotates in the vertical direction around the hinged end.

[0013] A further solution is to provide a positioning seat on the fixing plate, and a positioning post extending vertically on the positioning seat, with the pressing end located above the positioning post, and the pressing end moving toward or away from the positioning seat.

[0014] A further improvement is that the clamping device also includes an auxiliary positioning block, which has an arc-shaped positioning groove located above the edge of the through hole.

[0015] The beneficial effects of this utility model are as follows: by setting the motor housing on the through hole of the support plate and fixing it with the locking assembly, that is, by supporting the motor housing with the positioning seat of the fixing plate and positioning it by inserting the positioning seat, and then pressing it with the locking block, the motor housing is stably installed on the support plate. Furthermore, the clamping device is installed between the two rotating rocker arms through the support plate, and then the entire clamping device is rotated under the drive of the rotating drive device. Due to the setting of the through hole, the two axial end faces of the housing can be precisely machined. Moreover, by using the induction probe on the anti-vibration column, and by using multiple induction probes to detect the motor housing, not only can the specific height and diameter data of the motor housing be obtained, but also different models of motor housing can be adapted by the installation position of different induction probes. Then, the machining accuracy can be improved by outputting the detection data. Attached Figure Description

[0016] Figure 1 This is a structural diagram of an embodiment of the general-purpose machining fixture system of this utility model in the state of clamping the machine housing.

[0017] Figure 2 This is a structural diagram of an embodiment of the general-purpose machining fixture system of this utility model from another perspective when it is clamping the machine housing.

[0018] Figure 3 This is a structural diagram of an embodiment of the general-purpose machining fixture system of this utility model.

[0019] Figure 4 This is a structural diagram of the clamping device in an embodiment of the general-purpose machining clamping system of this utility model.

[0020] Figure 5 This is a structural diagram of the sensing probe and protective bracket in an embodiment of the general-purpose machining fixture system of this utility model.

[0021] Figure 6 This is a structural diagram of another detection position of an embodiment of the general-purpose machining fixture system of this utility model.

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments. Detailed Implementation

[0023] Reference Figures 1 to 6The general-purpose machining fixture system includes a base plate 11, a flipping device, and a fixture device 2. The flipping device includes a flipping drive device 13, two flipping brackets 12, and two flipping rocker arms 14. The two flipping brackets 12 are vertically arranged on the base plate 11 and are located on the horizontal sides of the base plate 11 respectively. One flipping rocker arm 14 is rotatably arranged on one flipping bracket 12 about the horizontal axis and extends vertically and is connected to the inner side of the flipping bracket 12. The flipping drive device 13 is fixed on one of the flipping brackets 12 and is connected to the flipping rocker arm 14 on the same side and drives the flipping rocker arm 14 to rotate.

[0024] The clamping device 2 includes a support plate 21, four anti-vibration columns 221, four sensing probes 222, and a locking assembly. The support plate 21 extends horizontally and has a through hole 211 extending vertically. The support plate 21 is connected to two rotating rocker arms 14 and rotates with the rotation of the rotating rocker arms 14. The four anti-vibration columns 221 extend vertically and are fixedly mounted on the support plate 21. The four anti-vibration columns 221 are symmetrically arranged at the edge of the through hole 211. A housing placement position 101 is formed between the four anti-vibration columns 221. The housing placement position 101 is used to place the motor housing 10. The anti-vibration columns 221 have two or more mounting holes 223 arranged vertically. The sensing probes 222 are installed in the mounting holes 223. The sensing probes 222 are contact displacement sensors and face the housing placement position 101.

[0025] The clamping device 2 also includes four protective brackets 23, which are arranged in an L-shape. Each protective bracket 23 includes a horizontal plate 233 and a vertical plate 234 connected to each other. The horizontal plate 233 has a connecting hole 232 through it in the horizontal direction. The anti-vibration column 221 has a fixing hole 224 below the mounting hole 223. Screws pass through the connecting hole 232 and the fixing hole 224 to fix the horizontal plate 233 and the anti-vibration column 221. The vertical plate 234 has a through hole 231 through it in the horizontal direction. The through hole 231 is arranged in a U-shape. The detection part of the sensing probe 222, i.e., the probe 2221, passes through the through hole 231. The vertical plate 234 is located on the inner side of the body of the sensing probe 222.

[0026] The locking assembly includes four locking modules 24, which are fixedly mounted on the support plate 21 and rotate symmetrically located at the edge of the through hole 211. The sensing probe 222 is located above the locking modules 24, and the locking modules 24 and the anti-vibration column 221 are arranged alternately. The locking module 24 includes a fixing plate 241, a locking block 243, a hydraulic drive device 242, and a hinged swing arm 244. The fixing plate 241 is fixedly mounted on the support plate 21. The locking block 243 has a holding end 247 and a driving end 248 at both ends, and a hinged end is provided between the holding end 247 and the driving end 248. The hydraulic drive device 242 is hinged to the driving end 248 and drives the driving end 248 to move in the vertical direction. The hinged swing arm 244 is hinged between the hinged end and the fixing plate 241, and the holding end 247 rotates around the hinged end in the vertical direction.

[0027] A positioning seat 245 is provided on the fixed plate 241, and a positioning post 246 extending vertically is provided on the positioning seat 245. The pressing end 247 is located above the positioning post 246 and can move toward or away from the positioning seat 245. The clamping device 2 also includes a plurality of auxiliary positioning blocks 25. The auxiliary positioning blocks 25 are provided with arc-shaped positioning grooves 251 on their inner sides. The auxiliary positioning blocks 25 are fixedly mounted on the support plate 21 and located on the outer periphery of the through hole 211. The arc-shaped positioning grooves 251 are located above the edge of the through hole 211.

[0028] The working principle of the general-purpose machining fixture system is as follows:

[0029] Rotate the support plate 21 to a horizontal position. According to the height specifications of the motor housing, place the sensing probe 222 in the vibration damping column 221 into the mounting hole 223 at a suitable height, and retract the probe of the sensing probe 222 to its shortest position. Adjust the position of the auxiliary positioning block 25 to ensure that it does not block the insertion of the motor housing. Then adjust the top of the hydraulic drive device 242 so that the pressing end 247 of the locking block 243 is in a raised state.

[0030] The motor housing 10 is placed between four anti-vibration columns 221 and on the positioning seat 245. Simultaneously, the positioning columns 246 are inserted into the corresponding positioning holes of the motor housing. Then, the pressing end 247 of the locking block 243 clamps the motor housing. Fixing the motor housing using a boss-type clamping method avoids the problem of deformation caused by directly applying locking force to the motor housing. Furthermore, since the motor housing can be fixed by the boss, the upper and lower end faces of the motor housing do not contact the tooling. Therefore, the upper and lower end faces of the motor housing can be machined in one go through the through holes 211.

[0031] By pressing the locking block 243, the locking block 243 is ensured to lock the housing. The locking block 243 provides a locking force along the axial direction of the motor housing. At the same time, the precise fit between the positioning pin 246 and the positioning hole on the housing ensures that the motor housing will not be displaced in the radial direction.

[0032] Then, the four retractable sensing probes 222 are activated, causing the probes 2221 of the sensing probes 222 to automatically extend until all four probes effectively contact the outer wall of the motor housing and then stop. Then, the auxiliary positioning block 25 is moved so that the arc-shaped positioning groove 251 on the inner side of the auxiliary positioning block 25 contacts the side wall of the housing. Then, the fixing screws of the auxiliary positioning block 25 are tightened, thus realizing the positioning and fixing of the motor housing to be processed.

[0033] When changing to different models of water-cooled housings, the installation position of the sensing probe 222 on the anti-vibration column 221 can be adjusted to adapt to changes in the height of the motor housing. After the sensing probe 222 is activated, the probe 2221 automatically and slowly extends, gradually approaching and contacting the side wall of the motor housing. When the probe contacts the side wall and senses the set pressure, it stops extending and locks its position. This adapts to and matches changes in the diameter of the water-cooled housing, providing radial support force for the machining of the water-cooled housing and preventing abnormal machining such as tool deflection or tool bounce caused by lateral cutting forces. Furthermore, the protective bracket 23 protects the sensing probe 222 during machining. At the same time, the position of the auxiliary positioning block 25 is adjusted to contact the side wall of the housing, achieving multi-point support and positioning of the motor housing.

[0034] As can be seen from the above, this invention sets the motor housing on the through hole of the support plate and fixes it with the locking assembly. That is, the positioning seat of the fixing plate supports the motor housing, and the positioning seat is inserted and positioned. Then, the locking block presses it, so that the motor housing is firmly installed on the support plate. Furthermore, the clamping device is installed between the two tilting rocker arms through the support plate. Then, under the drive of the tilting drive device, the clamping device can be tilted as a whole. Due to the setting of the through hole, the two axial end faces of the housing can be precisely machined. Moreover, through the induction probe on the anti-vibration column, the detection of the motor housing by multiple induction probes can not only obtain the specific height and diameter data of the motor housing, but also adapt to different models of motor housing by different installation positions of induction probes. Then, the machining accuracy can be improved by outputting the detection data.

Claims

1. A machine tooling universal fixture system for an electrical machine housing, characterized by, The machining universal clamp system comprises a base plate, a turnover device and a clamp device. The turnover device comprises a turnover driving device, two turnover supports and two turnover rocker arms, the two turnover supports are arranged on the base plate in a vertical direction, one turnover rocker arm is arranged on one turnover support in a horizontal axis rotation manner, the turnover driving device is connected with the turnover rocker arm and drives the turnover rocker arm to rotate; The clamp device comprises a support plate, at least two shockproof columns, at least two induction probes and a locking assembly, the support plate extends in a horizontal direction and is provided with a through hole in a vertical direction, the support plate is connected with the two turnover rocker arms and turns over with the rotation of the turnover rocker arms, the shockproof column extends in a vertical direction and is fixedly arranged on the support plate, at least two shockproof columns are symmetrically arranged at the edge of the through hole, a machine shell placement position is formed between at least two shockproof columns, one induction probe is arranged on one shockproof column, and the induction probe faces the machine shell placement position; The locking assembly comprises at least two locking modules, at least two locking modules are fixedly arranged on the support plate and symmetrically located at the edge of the through hole, and the induction probe is located above the locking module.

2. The machining universal clamp system according to claim 1, wherein: The shockproof column is provided with a plurality of mounting holes arranged in a vertical direction, and the induction probe is mounted in the mounting hole.

3. The machining universal clamp system according to claim 2, wherein: The clamp device further comprises at least two protection supports, the protection support is arranged in an L shape, the protection support comprises a transverse plate and a longitudinal plate connected with each other, the transverse plate is fixedly connected with the shockproof column, the longitudinal plate is provided with a through hole in a horizontal direction, the detection part of the induction probe penetrates through the through hole, and the longitudinal plate is located on the inner side of the body of the induction probe.

4. The machining universal clamp system according to claim 3, wherein: The through hole is arranged in a U-shaped hole.

5. The machining universal clamp system according to claim 3, wherein: The induction probe is a contact displacement sensor.

6. The machining universal clamp system according to claim 1, wherein: The clamp device comprises at least four shockproof columns and at least four induction probes, and the at least four shockproof columns are rotationally symmetrically arranged at the edge of the through hole.

7. The machining universal clamp system according to claim 6, wherein: The locking assembly comprises at least four locking modules, and the at least four locking modules are rotationally symmetrically arranged at the edge of the through hole, and the locking modules are staggered with the shockproof columns.

8. The machining universal clamp system according to any one of claims 1 to 7, wherein: The locking module comprises a fixed plate, a locking block, a hydraulic drive device and a hinged swing arm, the fixed plate is fixedly installed on the support plate, the locking block is provided with a pressing end and a driving end at both ends respectively, the locking block is provided with a hinged end between the pressing end and the driving end, the hydraulic drive device is hinged with the driving end and drives the driving end to move in the vertical direction, the hinged swing arm is hinged between the hinged end and the fixed plate, and the pressing end rotates in the vertical direction around the hinged end.

9. The machine tooling universal clamp system of claim 8, wherein: The fixed plate is provided with a positioning seat, the positioning seat is provided with a positioning column extending in the vertical direction, the pressing end is located above the positioning column, and the pressing end moves towards or away from the positioning seat.

10. The machine tooling universal clamp system of claim 8, wherein: The clamp device further comprises an auxiliary positioning block, the auxiliary positioning block is provided with an arc-shaped positioning groove, and the arc-shaped positioning groove is located above the edge of the through hole.

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