Machining tool for two ends of motor shell

Abstract

The machining tool comprises a first machine base, a second machine base, a tool rotating base assembly and a centering tool assembly, an auxiliary shaft base and a main shaft base are fixedly installed at the top end of the first machine base and the top end of the second machine base correspondingly, and a first speed reduction steering engine is arranged on one side of the main shaft base; the tool rotating seat assembly comprises a first ring seat, a second ring seat and a second speed reduction steering engine fixedly installed on the surface of the second ring seat, and a bearing sleeve seat located on the same straight line with the second speed reduction steering engine is arranged on the surface of the first ring seat. According to the double-end machining device, the independent tool frame structure is arranged, the auxiliary shaft base and the second machine base are used for supporting the tool rotating base assembly, deflection movement of the first ring base and the second ring base is carried out under control of the first speed reduction steering engine and the second speed reduction steering engine, the tool angle of the motor shell is adjusted, and rapid switching work of double-end machining of the motor shell is achieved; accurate positioning of double-end machining of the motor shell is guaranteed, repeated positioning adjustment in double-end machining is avoided, and the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of motor processing tooling, in particular to a tooling for processing both ends of a motor housing. Background Art

[0002] The motor mainly includes a stator, a rotor, a rotating shaft, a housing, and upper and lower bearings supporting the rotating shaft. The housing is connected to the front and rear end covers through the stoppers at both ends. The inner diameter of the housing, the inner diameter of the stator, and the coaxiality of the two stoppers are important factors to ensure the performance of the motor. In actual production and assembly, the housing is a tube blank and needs to be machined to determine the precise size. During the processing of the motor housing, the two end faces of the motor housing need to be turned, and then the stoppers at both ends are processed.

[0003] In the process of turning the stoppers at both ends of the motor housing, the existing machine tool chuck structure is usually used to clamp and fix one end of the motor housing. The motor housing is kept horizontal or vertical to contact the turning tool head. The guide head can only be arranged perpendicular to the shell surface or tangentially to the shell surface, resulting in a flat structure of the fine processing edge. It needs secondary grinding and reverse edge before it can be plugged into the motor housing, and the connection is tightly fitted to maintain the sealing effect. In addition, the traditional chuck fixing method can only perform turning processing on one end. After the processing of one end surface is completed, the workpiece is removed, and the chuck is used to clamp the processed end for positioning, and the unprocessed surface is processed. The two clamping operations need to be repositioned to ensure the accurate processing of the bayonet positions at both ends, which is not easy to ensure the accuracy of the motor housing. In view of this, the existing problems are studied and improved, and a tooling for processing both ends of the motor housing is provided to solve the current problems. The purpose is to achieve the purpose of solving the problem and improving the practical value through this technology. Summary of the invention

[0004] The present invention aims to solve one of the technical problems existing in the prior art or related technology.

[0005] To this end, the technical solution adopted by the present invention is: a tooling for processing both ends of a motor housing, comprising: a first machine base, a second machine base, a tooling swivel assembly and a centering tooling assembly, wherein the tops of the first machine base and the second machine base are respectively fixedly mounted with a secondary shaft seat and a main shaft seat, a first reduction steering gear is arranged on one side of the main shaft seat, the tooling swivel assembly comprises a first ring seat, a second ring seat and a second reduction steering gear fixedly mounted on the surface of the second ring seat, a bearing sleeve seat located on the same straight line as the second reduction steering gear is arranged on the surface of the first ring seat, the second ring seat is fixed to the inner side of the second reduction steering gear and the bearing sleeve seat, both sides of the first ring seat are provided with pivot pins for discussing with the secondary shaft seat and the inner side of the main shaft seat, and one of the pivot pins passes through the main shaft seat and is fixedly connected to the output end of the first reduction steering gear, and the centering tooling assembly is fixedly mounted on the surface of the second ring seat; The centering tooling assembly includes a static tooling seat, a driving cylinder sleeve, a clamping ear and a synchronous ring rotatably installed on the inner side of the static tooling seat. A plurality of moving ears are rotatably installed on the inner side of the static tooling seat. The clamping ear is rotatably installed on one end of the moving ear. A hydraulic driving rod is fixedly installed on the inner side of the driving cylinder sleeve. A spur rack is slidably installed on the inner side of the driving cylinder sleeve. The output end of the hydraulic driving rod is fixedly connected to one end of the spur rack. Transmission teeth are provided on the surface of the moving ear. Inner ring teeth and outer drive teeth meshing with the transmission teeth and the spur rack are respectively provided on the inner and outer sides of the synchronous ring.

[0006] In a preferred example, the present invention can be further configured as follows: the secondary shaft seat and the second machine seat are symmetrically arranged on both sides of the tooling swivel assembly, and the secondary shaft seat and the main shaft seat are located at the same horizontal level and on the same straight line with the center of the first ring seat and the second ring seat.

[0007] In a preferred example, the present invention can be further configured as follows: the axis of the second reduction servo gear and the bearing sleeve passes through the center of the first ring seat and the second ring seat, and the line connecting the second reduction servo gear and the bearing sleeve is perpendicular to the line connecting the secondary shaft seat and the main shaft seat.

[0008] In a preferred example, the present invention can be further configured as follows: the bearing sleeve, secondary shaft seat and main shaft seat have the same structure, and a sleeve gap is provided between the inner side of the main shaft seat and the rotation pin on the surface of the first ring seat.

[0009] In a preferred example, the present invention can be further configured as follows: a torque measuring rod is provided at the bottom end of the first reduction servo and is fixedly connected to the surface of the second base through the torque measuring rod, and an output end of the torque measuring rod is electrically connected to an alarm module.

[0010] In a preferred example, the present invention can be further configured as follows: the first reduction steering gear and the second reduction steering gear are worm reduction motor structures, and the input ends of the first reduction steering gear and the second reduction steering gear are electrically connected to a controller.

[0011] In a preferred example, the present invention can be further configured as follows: a plurality of the moving ears are evenly arranged in the circumferential direction, a pin rod is provided on the surface of the moving ear between the clamping ear and the transmission tooth and the moving ear is rotatably installed on the inner side of the static workpiece seat through the pin rod.

[0012] In a preferred example, the present invention can be further configured as follows: the synchronization ring is concentric with the center of the static tooling seat, the second ring seat and the first ring seat, and the clamping ear is an arc-shaped plate structure.

[0013] The beneficial effects achieved by the present invention are: 1. In the present invention, an independent tooling frame structure is provided, the secondary shaft seat and the second machine seat support the tooling swivel seat assembly, and the first ring seat and the second ring seat are deflected under the control of the first reduction steering gear and the second reduction steering gear, so as to adjust the tooling angle of the motor housing, realize the rapid switching of the double-end processing of the motor housing, ensure the accurate positioning of the double-end processing of the motor housing, avoid repeated positioning adjustment in the double-end processing, and improve the work efficiency.

[0014] 2. In the present invention, the first reduction servo and the second reduction servo respectively drive the first ring seat and the second ring seat to deflect, adjust the second ring seat and the motor housing of the tooling to deflect, cooperate with the milling head to perform oblique milling, and process the motor housing to form an oblique cut structure to better fit the end cover, thereby improving the sealing performance of the motor.

[0015] 3. In the present invention, a new clamping tooling structure is adopted, in which a hydraulic drive rod drives a straight rack to link multiple moving ears to deflect synchronously to clamp the surface of the motor housing, so that the motor housing and the synchronous ring remain concentric, and the centering tooling is performed, and the tooling and positioning operations are performed with one button. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of the installation structure of a tooling swivel assembly according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the installation structure of a centering tooling assembly according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of a secondary shaft seat and a first reduction steering gear according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of a centering tooling assembly according to an embodiment of the present invention; Figure 6 A schematic diagram of the structure of a drive cylinder sleeve and a synchronizer ring according to an embodiment of the present invention; Figure 7 The figure is a schematic diagram of the structure of a synchronizing ring and a moving ear according to an embodiment of the present invention.

[0017] Reference numerals: 100, first machine base; 110, secondary shaft base; 200, second engine base; 210, main shaft base; 220, first reduction steering gear; 230, torque measuring rod; 300, tooling swivel seat assembly; 310, first ring seat; 320, second ring seat; 330, second reduction steering gear; 311, bearing sleeve seat; 400, centering fixture assembly; 410, static fixture seat; 420, drive cylinder sleeve; 430, clamping ear; 440, synchronizer ring; 450, moving ear; 421, hydraulic drive rod; 422, spur rack; 441, inner ring gear; 442, outer drive gear; 451, transmission gear. DETAILED DESCRIPTION

[0018] To make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in combination with specific implementations and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0019] A tool for processing both ends of a motor housing provided by some embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0020] Combination Figure 1-7 As shown, the present invention provides a tool for processing both ends of a motor housing, comprising: a first machine base 100, a second machine base 200, a tool swivel assembly 300 and a centering tool assembly 400, the tops of the first machine base 100 and the second machine base 200 are respectively fixedly mounted with a secondary shaft seat 110 and a main shaft seat 210, one side of the main shaft seat 210 is provided with a first reduction steering gear 220, the tool swivel assembly 300 comprises a first ring seat 310, a second ring seat 320 and a second reduction steering gear fixedly mounted on the surface of the second ring seat 320 The servo 330, the surface of the first ring seat 310 is provided with a bearing sleeve seat 311 located in the same straight line as the second reduction servo 330, the second ring seat 320 is fixed to the inner side of the second reduction servo 330 and the bearing sleeve seat 311, both sides of the first ring seat 310 are provided with a pivot pin for connecting with the secondary shaft seat 110 and the inner side of the main shaft seat 210, and one of the pivot pins passes through the main shaft seat 210 and is fixedly connected with the output end of the first reduction servo 220, and the centering tooling assembly 400 is fixedly installed on the surface of the second ring seat 320; The centering fixture assembly 400 includes a static fixture seat 410, a driving cylinder sleeve 420, a clamping ear 430 and a synchronous ring 440 rotatably installed on the inner side of the static fixture seat 410. A plurality of moving ears 450 are rotatably installed on the inner side of the static fixture seat 410. The clamping ear 430 is rotatably installed on one end of the moving ear 450. A hydraulic driving rod 421 is fixedly installed on the inner side of the driving cylinder sleeve 420. A spur rack 422 is slidably installed on the inner side of the driving cylinder sleeve 420. The output end of the hydraulic driving rod 421 is fixedly connected to one end of the spur rack 422. A transmission tooth 451 is provided on the surface of the moving ear 450. An inner ring tooth 441 and an outer drive tooth 442 meshing with the transmission tooth 451 and the spur rack 422 are respectively provided on the inner and outer sides of the synchronous ring 440.

[0021] In this embodiment, the secondary shaft seat 110 and the second machine seat 200 are symmetrically arranged on both sides of the tooling swivel assembly 300, and the secondary shaft seat 110 and the main shaft seat 210 are located at the same horizontal direction and on the same straight line as the center of the first ring seat 310 and the second ring seat 320.

[0022] In this embodiment, the axes of the second reduction servo 330 and the bearing sleeve 311 pass through the centers of the first ring seat 310 and the second ring seat 320 , and the line connecting the second reduction servo 330 and the bearing sleeve 311 is perpendicular to the line connecting the secondary shaft seat 110 and the main shaft seat 210 .

[0023] Specifically, the first reduction servo 220 and the second reduction servo 330 are used to respectively drive the first ring seat 310 and the second ring seat 320 to perform deflection movement, adjust the inclination angle of the centering tooling assembly 400 and the tooling motor housing, perform special-shaped surface cutting, and realize rapid replacement of the two ends of the motor when the first ring seat 310 is flipped.

[0024] In this embodiment, the bearing sleeve 311 , the secondary shaft seat 110 and the main shaft seat 210 have the same structure, and a sleeve gap is provided between the inner side of the main shaft seat 210 and the surface of the first ring seat 310 .

[0025] Furthermore, a torque measuring rod 230 is provided at the bottom end of the first reduction servo 220 and is fixedly connected to the surface of the second machine base 200 through the torque measuring rod 230. The output end of the torque measuring rod 230 is electrically connected to an alarm module.

[0026] Specifically, there is a gap between the main shaft seat 210 and the rotating pin sleeve, which allows the rotating pin to swing on the inner side of the main shaft seat 210 to transmit vibration. After the motor housing tooling is completed, if the two ends of the motor housing extend to different distances, that is, the clamping contact position of the clamping ear 430 is not located in the middle of the motor housing, when the torque measuring rod 230 drives the second reduction servo 330 and the motor housing as a whole to deflect, due to the deviation of its center of gravity, it causes centrifugal vibration, and the first reduction servo 220 produces inertial fluctuations under the centrifugal effect, and the torque measuring rod 230 issues an alarm after sensing it; and after the clamping ear 430 is clamped in the middle of the motor housing, the first reduction servo 220 can stably drive the first ring seat 310 to rotate, and after flipping the two ends of the motor housing, there is no need to reposition and adjust.

[0027] In this embodiment, the first reduction steering gear 220 and the second reduction steering gear 330 are worm reduction motor structures, and input ends of the first reduction steering gear 220 and the second reduction steering gear 330 are electrically connected to a controller.

[0028] Specifically, the characteristic of the unidirectional output transmission of the worm reduction motor is utilized to avoid low processing accuracy caused by the spontaneous deflection movement of the first ring seat 310 and the second ring seat 320. The controller is connected to the turning machine tool for linkage control, and automatic programming control is realized for turning of special-shaped surfaces, and bayonet milling and automatic chamfering are performed.

[0029] In this embodiment, a plurality of moving ears 450 are evenly arranged in the circumferential direction. A pin rod located between the clamping ear 430 and the transmission tooth 451 is provided on the surface of the moving ear 450 and is rotatably mounted on the inner side of the static work seat 410 through the pin rod.

[0030] Furthermore, the synchronizer ring 440 is concentric with the center of the static tooling seat 410 , the second ring seat 320 and the first ring seat 310 , and the clamping ear 430 is an arc-shaped plate-shaped structure.

[0031] Specifically, the hydraulic drive rod 421 drives the spur rack 422 to link the multiple moving ears 450 to deflect synchronously to clamp the surface of the motor housing, so that the motor housing and the synchronous ring 440 remain concentric, and the centering tooling is performed.

[0032] The working principle and use process of the present invention: When using the tooling for processing both ends of the motor housing, the equipment is arranged below the turning machine head, the motor housing to be processed is sleeved on the inner side of the second ring seat 320, and the spur rack 422 is driven by the hydraulic drive rod 421 to slide horizontally and linearly to drive the synchronous ring 440 to rotate, and the moving ear 450 is deflected and moved under the meshing transmission of the inner ring gear 441 and the transmission gear 451, and the clamping ear 430 is clamped with the tooling on the surface of the motor housing, and the hydraulic drive rod 421 drives the spur rack 422 to link multiple moving ears 450 to deflect synchronously to clamp the surface of the motor housing, so that the motor housing and the synchronous ring 440 are kept concentric, and the centering tooling is performed, and the tooling and positioning operations are performed with one key; during processing, through the first reduction steering gear 220 and The second reduction servo 330 drives the first ring seat 310 and the second ring seat 320 to deflect, adjusts the second ring seat 320 and the motor housing of the tooling to make the motor housing keep a certain bevel angle in contact with the turning head, so that the cutting head is beveled, and the subsequent grinding and chamfering operations are disordered. The tooling swivel assembly 300 is supported by the secondary shaft seat 110 and the second machine seat 200, and the first ring seat 310 and the second ring seat 320 are deflected under the control of the first reduction servo 220 and the second reduction servo 330, the motor housing tooling angle is adjusted, and the rapid switching of the double-end processing of the motor housing is realized, so as to ensure the precise positioning of the double-end processing of the motor housing and avoid repeated positioning and adjustment in the double-end processing.

[0033] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A tool for processing both ends of a motor housing, characterized in that: include: A first machine base (100), a second machine base (200), a tooling swivel assembly (300) and a centering tooling assembly (400), wherein a secondary shaft seat (110) and a main shaft seat (210) are respectively fixedly mounted on the top of the first machine base (100) and the second machine base (200), a first reduction steering gear (220) is disposed on one side of the main shaft seat (210), and the tooling swivel assembly (300) comprises a first ring seat (310), a second ring seat (320) and a second reduction steering gear (330) fixedly mounted on the surface of the second ring seat (320), wherein the first ring seat (310) and the second ring seat (320) are fixedly mounted on the surface of the second ring seat (320), and the first ring seat (310) and the second ring seat (320) are fixedly mounted on the surface of the second ring seat (320). The surface of the seat (310) is provided with a bearing sleeve seat (311) located on the same straight line as the second reduction steering gear (330); the second ring seat (320) is fixed to the inner side of the second reduction steering gear (330) and the bearing sleeve seat (311); both sides of the first ring seat (310) are provided with pivot pins for connecting with the secondary shaft seat (110) and the inner side of the main shaft seat (210); one of the pivot pins penetrates the main shaft seat (210) and is fixedly connected to the output end of the first reduction steering gear (220); and the centering tooling assembly (400) is fixedly installed on the surface of the second ring seat (320); The centering fixture assembly (400) comprises a stationary fixture seat (410), a driving cylinder sleeve (420), a clamping ear (430) and a synchronous ring (440) rotatably mounted on the inner side of the stationary fixture seat (410); a plurality of moving ears (450) are rotatably mounted on the inner side of the stationary fixture seat (410); the clamping ear (430) is rotatably mounted on one end of the moving ear (450); a hydraulic driving rod (421) is fixedly mounted on the inner side of the driving cylinder sleeve (420); a spur rack (422) is slidably mounted on the inner side of the driving cylinder sleeve (420); an output end of the hydraulic driving rod (421) is fixedly connected to one end of the spur rack (422); a transmission tooth (451) is provided on the surface of the moving ear (450); and inner and outer sides of the synchronous ring (440) are respectively provided with inner ring teeth (441) and outer drive teeth (442) meshing with the transmission tooth (451) and the spur rack (422).

2. A motor housing two-end processing tool according to claim 1, characterized in that: The secondary shaft seat (110) and the second machine seat (200) are symmetrically arranged on both sides of the tooling swivel seat assembly (300); the secondary shaft seat (110) and the main shaft seat (210) are located at the same horizontal direction and on the same straight line as the centers of the first ring seat (310) and the second ring seat (320).

3. The tooling for processing both ends of a motor housing according to claim 1, characterized in that: The axes of the second reduction steering gear (330) and the bearing sleeve seat (311) pass through the centers of the first ring seat (310) and the second ring seat (320), and the line connecting the second reduction steering gear (330) and the bearing sleeve seat (311) is perpendicular to the line connecting the secondary shaft seat (110) and the main shaft seat (210).

4. The motor housing two-end processing tool according to claim 1, characterized in that: The bearing sleeve seat (311), the secondary shaft seat (110) and the main shaft seat (210) have the same structure, and a sleeve gap is provided between the inner side of the main shaft seat (210) and the rotating pin on the surface of the first ring seat (310).

5. The motor housing two-end processing tool according to claim 1, characterized in that: A torque measuring rod (230) is provided at the bottom end of the first reduction steering gear (220) and is fixedly connected to the surface of the second machine base (200) via the torque measuring rod (230); an output end of the torque measuring rod (230) is electrically connected to an alarm module.

6. The motor housing two-end processing tool according to claim 1, characterized in that: The first reduction steering gear (220) and the second reduction steering gear (330) are worm reduction motor structures, and the input ends of the first reduction steering gear (220) and the second reduction steering gear (330) are electrically connected to a controller.

7. The tooling for processing both ends of a motor housing according to claim 1, characterized in that: The plurality of moving ears (450) are evenly arranged in a circumferential direction, and the surface of the moving ear (450) is provided with a pin located between the clamping ear (430) and the transmission tooth (451) and is rotatably mounted on the inner side of the static fixture seat (410) via the pin.

8. The tooling for processing both ends of a motor housing according to claim 1, characterized in that: The synchronization ring (440) is concentric with the center of the static tooling seat (410), the second ring seat (320) and the first ring seat (310), and the clamping ear (430) is an arc-shaped plate-shaped structure.

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