A positioning mechanism and positioning method of a micro motor automatic cochlear rolling device

Abstract

The invention relates to a positioning mechanism of a micro-motor automatic worm rolling device and a positioning method thereof; the mechanism comprises a base mounted on a workbench and a rotating seat rotatably mounted on the base, rollers for worm rolling are respectively arranged on both sides of the rotating seat, a pushing assembly for pushing the micro-motor to a processing position is arranged at one end of the rotating seat, and a positioning assembly for axially positioning the micro-motor is arranged at the other end; the beneficial effects of the invention are embodied in: automatic pushing is adopted to replace the traditional manual filling mode, thereby reducing production safety hazards, positioning the two ends of the motor output shaft through the rotating seat and the tungsten steel sleeve in the pushing shaft, reducing the deformation of the motor output shaft during the rolling process, and the positioning rod tightens the output shaft to prevent axial displacement during the rolling process, thereby realizing the axial positioning of the output shaft, and the rotating seat can realize rotational deflection during the extrusion process, thereby further reducing the deformation of the output shaft, improving the production quality, and having strong practicality.

Description

Technical Field

[0001] The invention relates to a micro motor processing device, in particular to a positioning mechanism and a positioning method of a micro motor automatic worm gear device. Background Art

[0002] During the processing of the motor output shaft, the surface is generally subjected to a worm thread rolling operation. Woven thread rolling is essentially the surface extrusion of the output shaft to press out threads on its surface. The external thread processing of the output shaft usually uses worm thread rolling equipment. The existing thread rolling equipment generally places the motor in the processing position manually and uses double rollers to extrude the motor output shaft. This loading method has great safety hazards and is prone to danger. In addition, the fixture of this thread rolling equipment has poor positioning ability for the motor output shaft, and it is easy to loosen and deviate during the thread rolling process, which increases the deformation of the motor shaft, affects the thread rolling effect, and has poor practicality. Summary of the invention

[0003] In order to solve the above problems, the present invention aims to provide a motor processing equipment, in particular a positioning mechanism and a positioning method of a micro motor automatic worm gear equipment.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a positioning mechanism of a micro-motor automatic worm gear rolling device, comprising a base mounted on a workbench and a rotating seat rotatably mounted on the base, rollers for worm gear rolling operations on the motor output shaft are respectively arranged on both sides of the rotating seat, a pushing assembly for pushing the micro-motor to a processing position is arranged at one end of the rotating seat, and a positioning assembly for axially positioning the micro-motor is arranged at the other end;

[0005] The pusher assembly comprises a guide plate, a fixed seat and a pusher cylinder, wherein the guide plate is mounted on the rotating seat, the fixed seat is slidably arranged on the guide plate, the pusher cylinder is mounted on the guide plate via a fixed block, and the pusher cylinder is connected to the fixed seat via a transmission shaft to push the fixed seat to slide back and forth on the guide plate;

[0006] The positioning assembly includes a positioning frame and a positioning rod, the positioning frame is installed on the rotating seat, the positioning rod is coaxially arranged with the motor output shaft, and is telescopically inserted into the positioning frame and the rotating seat in sequence, and one side of the positioning rod is provided with an ejection cylinder installed on the workbench, and the ejection cylinder is transmission-connected to the positioning rod through a driving shaft to push the positioning rod to realize telescopic movement in the positioning frame.

[0007] Preferably, the base is provided with a bracket, the bracket is provided with a hollow mounting cavity, both ends of the mounting cavity are provided with mounting blocks, the mounting blocks at both ends are provided with mounting holes located on the same axis, the rotating seat is an L-shaped structure, including a horizontal mounting portion and a vertical positioning portion, the mounting portion is provided with an axial hole with openings at both ends, a rotating shaft is provided in the axial hole, both ends of the rotating shaft can be rotatably inserted in the mounting hole, so that the rotating seat can be rotatably and swingably installed on the bracket, the end of the rotating shaft is provided with a reset component located on the outside of the bracket for driving the rotating seat to swing and reset on the bracket, the positioning portion is provided with a positioning hole, a bearing located on the same axis as the motor output shaft is provided in the positioning hole, and a first sleeve is provided in the bearing.

[0008] Preferably, the reset assembly includes a rotating block and a reset spring, the outer periphery of the rotating block is provided with an inwardly recessed annular recess, the rotating block is sleeved on the end of the rotating shaft to achieve synchronous rotational movement with the rotating shaft, the reset spring is provided on the annular recess, one end of the reset spring is fixed to the rotating block by a first locking screw, and the other end is fixed to the bracket by a second locking screw.

[0009] Preferably, the positioning rod is inserted into the first sleeve, a first limiting ring sleeved on the positioning rod is provided between the positioning frame and the positioning portion, a second limiting ring sleeved on the positioning rod is provided on the outer side of the positioning frame, and a return spring sleeved on the positioning rod is provided between the positioning frame and the first limiting ring.

[0010] Preferably, the guide plate is fixedly mounted on the mounting portion, a slide rail is provided on the guide plate, the fixed seat is slidably mounted on the slide rail through a slider, an oil baffle plate installed on the guide plate is provided between the fixed seat and the positioning portion, a working chamber for performing worm gear operation on the motor output shaft is formed between the oil baffle plate and the positioning portion, and the oil baffle plate is provided with a guide hole located on the same axis as the motor output shaft.

[0011] Preferably, the fixed seat includes a loading rail and a transmission block, the loading rail is provided with a material trough for fixing the micro motor to be processed, connecting holes are provided on both sides of the transmission block, and movable pull rods are provided in the connecting holes. The pull rods are fixedly connected to the loading rail by threads, and a buffer spring is provided on the pull rod, one end of the buffer spring rests on the loading rail, and the other end rests on the transmission block.

[0012] Preferably, a push shaft is provided on one side of the transmission block, the push shaft is provided with a hollow installation cavity, a second sleeve is provided in the installation cavity and is coaxially arranged with the motor output shaft, and the transmission block is connected to the transmission shaft of the pushing cylinder so that the transmission block can push out or pull back the loading rail under the drive of the pushing cylinder.

[0013] Preferably, a sensor for detecting whether the motor on the fixing seat is in place is provided on one side of the guide plate.

[0014] Preferably, a push block for pushing the positioning rod is provided at the end of the driving shaft.

[0015] A positioning method for a positioning mechanism of a micro-motor automatic cochlear rolling device, comprising the following steps:

[0016] (1) Detection: Use the sensor on one side of the guide plate to detect the fixed seat and check whether the motor in the material trough of the material rail is in place;

[0017] (2) Pushing: When the motor is loaded on the fixed seat, the pushing cylinder pushes out the transmission block through the transmission shaft, so that the transmission block drives the push shaft to move toward the motor, so that the output shaft at the tail end of the motor is clamped in the second sleeve in the push shaft, and the transmission block pushes the loading rail carrying the motor to the oil baffle;

[0018] (3) Positioning: When the motor is pushed to the oil baffle, the output shaft at the front end of the motor extends through the guide hole on the oil baffle into the working chamber, and the output shaft extends into the first sleeve of the bearing. At the same time, the ejection cylinder is started, and the drive shaft pushes the positioning rod toward the motor through the push block, so that the positioning rod coaxially abuts against the output shaft in the bearing to achieve axial positioning of the motor.

[0019] (4) Reset: After the motor output shaft completes processing, the push cylinder starts, and the transmission shaft pulls the transmission block in the opposite direction, so that the transmission block pulls the loading rail back to the starting position through the pull rod. At the same time, the ejection cylinder starts, the drive shaft retracts, and the push block is released from the positioning rod, so that the positioning rod rebounds to the starting position under the action of the reset spring, completing the reset.

[0020] The beneficial effects of the present invention are as follows: the present invention aims to provide a positioning mechanism and a positioning method for a micro-motor automatic worm thread rolling device, which adopts an automatic pushing method to replace the traditional manual loading mode, thereby reducing safety hazards in production, and positioning the two ends of the motor output shaft through the tungsten steel sleeves in the rotating seat and the push shaft, thereby reducing the deformation of the motor output shaft during the thread rolling process, and the positioning rod tightens the output shaft to prevent axial displacement during the thread rolling process, thereby realizing the axial positioning of the output shaft, and at the same time, the rotating seat can achieve a certain degree of rotational deflection during the roller extrusion process, further reducing the deformation of the output shaft, greatly improving the production quality, and having strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 It is a structural schematic diagram of the positioning mechanism of the present invention.

[0023] Figure 3 It is a schematic diagram of the assembly structure of the base and the rotating seat of the present invention.

[0024] Figure 4 Schematic diagram of the structure of the support of the present invention.

[0025] Figure 5 It is a structural schematic diagram of the rotating seat of the present invention.

[0026] Figure 6 It is a schematic diagram of the assembly structure of the positioning component and the rotating seat of the present invention.

[0027] Figure 7 It is a schematic structural diagram of the pusher assembly of the present invention.

[0028] Figure 8 It is a structural schematic diagram of the fixing seat of the present invention.

[0029] Fig. 9 It is a structural schematic diagram of the transmission block of the present invention.

[0030] Notes on the attached drawings:

[0031] 1- workbench; 2- base; 3- rotating seat; 4- output shaft; 5- roller; 6- pusher assembly; 7- positioning assembly; 8- guide plate; 9- fixed seat; 10- pusher cylinder; 11- fixed block; 12- transmission shaft; 13- positioning frame; 14- positioning rod; 15- ejector cylinder; 16- driving shaft; 17- bracket; 18- mounting cavity; 19- mounting block; 20- mounting hole; 21- mounting part; 22- positioning part; 23- shaft hole; 24- rotating shaft; 25- reset assembly; 26- positioning hole; 27 -bearing; 28-first sleeve; 29-rotating block; 30-reset spring; 31-annular recess; 32-first locking screw; 33-second locking screw; 34-first limit ring; 35-second limit ring; 36-reset spring; 37-slide rail; 38-oil baffle; 39-working chamber; 40-guide hole; 41-loading rail; 42-transmission block; 43-material trough; 44-connecting hole; 45-pull rod; 46-buffer spring; 47-push shaft; 48-second sleeve; 49-sensor; 50-push block. DETAILED DESCRIPTION

[0032] In the following description, all concepts related to directionality or orientation such as up, down, left, right, front and back are with reference to the position states shown in the drawings being described, and therefore cannot be understood as a special limitation on the technical solution provided by the present invention.

[0033] The specific implementation of the present invention is described in detail below with reference to the accompanying drawings:

[0034] like Figure 1-9 As shown, a positioning mechanism of a micro motor automatic worm gear rolling device comprises a base 2 mounted on a workbench 1 and a rotating seat 3 rotatably mounted on the base 2, rollers 5 for worm gear rolling operations on a motor output shaft 4 are respectively arranged on both sides of the rotating seat 3, a pushing assembly 6 for pushing the micro motor to a processing position is arranged at one end of the rotating seat 3, and a positioning assembly 7 for axially positioning the micro motor is arranged at the other end;

[0035] The pusher assembly 6 includes a guide plate 8, a fixed seat 9 and a pusher cylinder 10. The guide plate 8 is mounted on the rotating seat 3. The fixed seat 9 is slidably disposed on the guide plate 8. The pusher cylinder 10 is mounted on the guide plate 8 through a fixed block 11. The pusher cylinder 10 is connected to the fixed seat 9 through a transmission shaft 12 to push the fixed seat 9 to slide back and forth on the guide plate 8.

[0036] The positioning assembly 7 includes a positioning frame 13 and a positioning rod 14. The positioning frame 13 is installed on the rotating seat 3. The positioning rod 14 is coaxially arranged with the motor output shaft 4 and is telescopically inserted into the positioning frame 13 and the rotating seat 3 in sequence. A push-out cylinder 15 installed on the workbench 1 is provided on one side of the positioning rod 14. The push-out cylinder 15 is transmission-connected to the positioning rod 14 through a driving shaft 16 to push the positioning rod 14 to realize telescopic movement in the positioning frame 13.

[0037] Preferably, the base 2 is provided with a bracket 17, and the bracket 17 is provided with a hollow mounting cavity 18. Both ends of the mounting cavity 18 are provided with mounting blocks 19, and the mounting blocks 19 at both ends are provided with mounting holes 20 located on the same axis. The rotating seat 3 is an L-shaped structure, including a horizontal mounting portion 21 and a vertical positioning portion 22. The mounting portion 21 is provided with an axial hole 23 with openings at both ends, and a rotating shaft 24 is provided in the axial hole 23. Both ends of the rotating shaft 24 can be rotatably inserted in the mounting hole 20 so that the rotating seat 3 can be rotatably and swingably installed on the bracket 17. The end of the rotating shaft 24 is provided with a reset component 25 located on the outside of the bracket 17 for driving the rotating seat 3 to swing and reset on the bracket 17. The positioning portion 22 is provided with a positioning hole 26, and a bearing 27 located on the same axis as the motor output shaft 4 is provided in the positioning hole 26, and a first sleeve 28 is provided in the bearing 27.

[0038] Preferably, the reset assembly 25 includes a rotating block 29 and a reset spring 30, the outer periphery of the rotating block 29 is provided with an inwardly recessed annular recess 31, the rotating block 29 is sleeved on the end of the rotating shaft 24 to achieve synchronous rotational movement with the rotating shaft 24, the reset spring 30 is provided on the annular recess 31, one end of the reset spring 30 is fixed to the rotating block 29 by a first locking screw 32, and the other end is fixed to the bracket 17 by a second locking screw 33.

[0039] Preferably, the positioning rod 14 is inserted into the first sleeve 28, a first limiting ring 34 sleeved on the positioning rod 14 is provided between the positioning frame 13 and the positioning portion 22, a second limiting ring 35 sleeved on the positioning rod 14 is provided on the outer side of the positioning frame 13, and a return spring 36 sleeved on the positioning rod 14 is provided between the positioning frame 13 and the first limiting ring 34.

[0040] Preferably, the guide plate 8 is fixedly mounted on the mounting portion 21, a slide rail 37 is provided on the guide plate 8, the fixed seat 9 is slidably mounted on the slide rail 37 through a slider, an oil baffle plate 38 installed on the guide plate 8 is provided between the fixed seat 9 and the positioning portion 22, a working chamber 39 for performing worm gear operation on the motor output shaft 4 is formed between the oil baffle plate 38 and the positioning portion 22, and the oil baffle plate 38 is provided with a guide hole 40 located on the same axis as the motor output shaft 4.

[0041] Preferably, the fixing seat 9 includes a loading rail 41 and a transmission block 42, the loading rail 41 is provided with a material trough 43 for fixing the micro motor to be processed, connecting holes 44 are provided on both sides of the transmission block 42, and movable pull rods 45 are provided in the connecting holes 44, and the pull rods 45 are fixedly connected to the loading rail 41 by threads, and a buffer spring 46 is provided on the pull rod 45, one end of the buffer spring 46 rests on the loading rail 41, and the other end rests on the transmission block 42.

[0042] Preferably, a push shaft 47 is provided on one side of the transmission block 42, and the push shaft 47 is provided with a hollow installation cavity 18, and a second sleeve 48 coaxially arranged with the motor output shaft 4 is provided in the installation cavity 18. The transmission block 42 is connected to the transmission shaft 12 of the pushing cylinder 10, so that the transmission block 42 can push out or pull back the loading rail 41 under the drive of the pushing cylinder 10.

[0043] Preferably, a sensor 49 for detecting whether the motor on the fixing seat 9 is in place is provided on one side of the guide plate 8 .

[0044] Preferably, a push block 50 for pushing the positioning rod 14 is disposed at the end of the driving shaft 16 .

[0045] A positioning method for a positioning mechanism of a micro-motor automatic cochlear rolling device, comprising the following steps:

[0046] (1) Detection: The fixed seat 9 is detected by the sensor 49 on one side of the guide plate 8 to check whether the motor in the material slot 43 of the material rail 41 is in place;

[0047] (2) Pushing: When the motor is loaded on the fixed seat 9, the pushing cylinder 10 pushes out the transmission block 42 through the transmission shaft 12, so that the transmission block 42 drives the push shaft 47 to move toward the motor, so that the output shaft 4 at the rear end of the motor is clamped in the second shaft sleeve 48 in the push shaft 47, and the transmission block 42 pushes the loading rail 41 carrying the motor to the oil baffle 38;

[0048] (3) Positioning: When the motor is pushed to the oil baffle plate 38, the output shaft 4 at the front end of the motor passes through the guide hole 40 on the oil baffle plate 38 and extends into the working chamber 39, and the output shaft 4 extends into the first sleeve 28 of the bearing 27. At the same time, the ejection cylinder 15 is started, and the drive shaft 16 pushes the positioning rod 14 toward the motor through the push block 50, so that the positioning rod 14 coaxially abuts against the output shaft 4 in the bearing 27 to achieve axial positioning of the motor;

[0049] (4) Reset: After the motor output shaft 4 has completed processing, the push cylinder 10 is started, and the transmission shaft 12 pulls the transmission block 42 in the opposite direction, so that the transmission block 42 synchronously pulls the loading rail 41 back to the starting position through the pull rod 45. At the same time, the ejection cylinder 15 is started, the drive shaft 16 is retracted, and the push block 50 is released from the positioning rod 14, so that the positioning rod 14 rebounds to the starting position under the action of the reset spring 36, completing the reset.

[0050] The present invention discloses a positioning mechanism and a positioning method for a micro-motor automatic worm gear rolling device, comprising a base 2 mounted on a workbench 1, a bracket 17 with adjustable displacement arranged on the base 2, a hollow mounting cavity 18 arranged on the bracket 17, mounting blocks 19 arranged at both ends of the mounting cavity 18, mounting holes 20 located on the same axis are arranged on the mounting blocks 19 at both ends, a rotating seat 3 is arranged in the mounting cavity 18 of the bracket 17, the rotating seat 3 is an L-shaped structure, which comprises a horizontally arranged mounting portion 21 and a vertically arranged positioning portion 22, an axial hole 23 with openings at both ends is arranged in the mounting portion 21, and a rotating shaft 24 is arranged in the axial hole 23, both ends of the rotating shaft 24 extend and are exposed outside the axial hole 23, and are respectively rotatably inserted into the mounting holes 20 on the mounting blocks 19 at both ends of the bracket 17, so that the rotating seat 3 can be rotatably mounted on the bracket 17, and the ends of the rotating shaft 24 are arranged There is a reset component 25 located on the outside of the bracket 17, the reset component 25 includes a rotating block 29 and a reset spring 30, the outer periphery of the rotating block 29 is provided with an inwardly recessed annular recess 31, the rotating block 29 is sleeved on one end of the rotating shaft 24 so that the rotating block 29 can achieve synchronous rotation with the rotating shaft 24, the reset spring 30 is arranged on the annular recess 31, and one end of the reset spring 30 is fixed to the rotating block 29 by a first locking screw 32, and the other end is fixed to the bracket 17 by a second locking screw 33, a positioning hole 26 is provided on the positioning portion 22 of the rotating seat 3, a bearing 27 is provided in the positioning hole 26, and a first sleeve 28 located on the same straight line as the motor output shaft 4 is provided in the bearing 27, the first sleeve 28 is preferably but not limited to a tungsten steel sleeve, and rollers 5 for extruding and rolling the motor output shaft 4 are respectively provided on both sides of the rotating seat 3.

[0051] Furthermore, a pushing assembly 6 is provided in front of the rotating seat 3. Specifically, the pushing assembly 6 includes a guide plate 8, a fixed seat 9 and a pushing cylinder 10. The guide plate 8 is fixedly mounted on the mounting portion 21 of the rotating seat 3. A slide rail 37 is provided in the middle of the guide plate 8. The fixed seat 9 is slidably mounted on the slide rail 37 through a slider. The fixed seat 9 includes a loading rail 41 and a transmission block 42. The loading rail 41 is provided with a material trough 43 for loading and fixing the motor to be processed. The transmission block 42 is provided with a rear of the loading rail 41. Connecting holes 44 are provided on both sides of the bottom of the transmission block 42. Movable pull rods 45 are provided in the connecting holes 44 on both sides. The front end of the pull rod 45 is provided with a thread. 45 and the loading rail 41 are fixed to each other by threaded connection, and a buffer spring 46 is sleeved on the outer side of the pull rod 45, one end of the buffer spring 46 abuts on the loading rail 41, and the other end abuts on the transmission block 42. The transmission block 42 is provided with a push shaft 47 on the side facing the loading rail 41, and the push shaft 47 is provided with a hollow installation cavity 18, and a second shaft sleeve 48 coaxially arranged with the motor output shaft 4 is provided in the installation cavity 18. The second shaft sleeve 48 is preferably but not limited to a tungsten steel sleeve. The pushing cylinder 10 is arranged at the rear of the transmission block 42 and is installed on the guide plate 8 through the fixing block 11. The pushing cylinder 10 is provided with a transmission shaft 12, and is connected to the transmission block 42 through the transmission shaft 12.

[0052] Furthermore, an oil baffle plate 38 is arranged between the positioning portion 22 of the rotating seat 3 and the loading rail 41. The oil baffle plate 38 is installed at the end of the guide plate 8. A through guide hole 40 is arranged on the oil baffle plate 38. The guide hole 40 is coaxially arranged with the motor output shaft 4. A working chamber 39 for performing worm gear operation on the motor output shaft 4 is formed between the oil baffle plate 38 and the positioning portion 22 of the rotating seat 3.

[0053] Furthermore, a positioning assembly 7 is provided at the rear of the rotating seat 3, and the positioning assembly 7 includes a positioning frame 13 and a positioning rod 14. The positioning frame 13 is fixedly mounted on the positioning portion 22 of the rotating seat 3, and the positioning rod 14 is coaxially arranged with the motor output shaft 4. The head end of the positioning rod 14 is telescopically inserted into the positioning frame 13 and the first sleeve 28 in sequence, and the end extends axially to the outside of the positioning frame 13. An ejection cylinder 15 installed on the workbench 1 is provided at the end of the positioning rod 14, and the ejection cylinder 15 is provided with a driving shaft 16. A push block 50 for pushing out the positioning rod 14 is provided at the end of the driving shaft 16, and the cross-sectional width of the push block 50 is greater than or equal to the swing amplitude of the positioning rod 14 with the rotating seat 3.

[0054] Furthermore, a first limiting ring 34 and a second limiting ring 35 are respectively sleeved on the positioning rod 14 for limiting its telescopic displacement to prevent the motor output shaft 4 from being crushed. The first limiting ring 34 is arranged between the positioning frame 13 and the positioning portion 22 of the rotating seat 3, and the second limiting ring 35 is arranged on the outer side of the positioning frame 13. A return spring 36 sleeved on the positioning rod 14 is also arranged between the positioning frame 13 and the first limiting ring 34.

[0055] During the processing, the workpiece is first inspected, and the carrier rail 41 is inspected by the sensor 49 on the guide plate 8 to confirm whether the motor to be processed on the carrier rail 41 is in place for subsequent processing.

[0056] Then, the pushing of the motor is realized through the pushing assembly 6. When the sensor 49 detects that the motor is in place, the pushing cylinder 10 is started, and the transmission block 42 is pushed toward the working chamber 39 through the transmission shaft 12. At this time, the pushing shaft 47 on the transmission block 42 moves toward the direction of the motor, so that the end of the motor output shaft 4 is inserted into the second sleeve 48 in the pushing shaft 47, and the transmission block 42 pushes the loading rail 41 carrying the motor to the oil baffle 38.

[0057] Next, the motor output shaft 4 is positioned through the positioning assembly 7. When the motor is pushed to the oil baffle plate 38, the output shaft 4 at the front end of the motor passes through the guide hole 40 on the oil baffle plate 38 and extends into the working chamber 39 for rolling, and the front end portion of the output shaft 4 is synchronously inserted into the first sleeve 28 in the bearing 27. At this time, the two ends of the motor output shaft 4 are positioned by the first sleeve 28 and the second sleeve 48 respectively. At the same time, the ejection cylinder 15 is started, and the drive shaft 16 pushes the positioning rod 14 toward the motor direction through the push block 50, so that the positioning rod 14 is coaxially abutted against the output shaft 4 in the first sleeve 28 to achieve axial positioning of the motor output shaft 4 and prevent axial displacement of the output shaft 4.

[0058] Furthermore, the rollers 5 located on both sides of the rotating seat 3 perform rolling thread processing on the motor output shaft 4. The two rollers 5 are inserted into the working chamber 39, and the roller 5 on one side presses against the motor output shaft 4, thereby squeezing the motor output shaft 4 toward the other rolling position. When the rollers 5 press against the motor output shaft 4, the rotating seat 3 rotates and deflects at a certain angle along the extrusion direction under the action of the mounting shaft, thereby effectively protecting the motor output shaft 4.

[0059] Finally, after the thread rolling is completed, the roller 5 is released from the motor output shaft 4, and the rotating shaft 24 rotates to the starting state under the action of the reset tension spring 30 to complete the reset. At this time, the ejection cylinder 15 is started, the driving shaft 16 retracts, and the push block 50 is released from the positioning rod 14. The positioning rod 14 is reset to the starting state under the action of the reset spring 36. At the same time, the pushing cylinder 10 pulls the transmission block 42 back along the slide rail 37 through the transmission shaft 12. During the sliding process, the transmission block 42 pulls the loading rail 41 back to the starting position through the pull rod 45. When reaching the starting position, the loading rail 41 will further slide toward the transmission block 42 under the inertia state, so that the end of the motor output shaft 4 is again stuck in the second shaft sleeve 48, affecting the removal of the motor. In order to avoid the above situation, a buffer spring 46 is set on the pull rod 45, so that the loading rail 41 can be pushed out of the limit by the buffer spring 46 after the reset movement to prevent return jamming. At this point, the positioning thread rolling process of the entire motor output shaft 4 is completed.

[0060] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Technical personnel in this industry can make some deformation and modifications under the inspiration of this technical solution. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A positioning mechanism for a micro motor automatic cochlear rolling device, characterized in that: It includes a base mounted on a workbench and a rotating seat rotatably mounted on the base, rollers for rolling a worm gear on an output shaft of a motor are respectively arranged on both sides of the rotating seat, a pushing assembly for pushing a micro motor to a processing position is arranged at one end of the rotating seat, and a positioning assembly for axially positioning the micro motor is arranged at the other end; The pusher assembly comprises a guide plate, a fixed seat and a pusher cylinder, wherein the guide plate is mounted on the rotating seat, the fixed seat is slidably arranged on the guide plate, the pusher cylinder is mounted on the guide plate via a fixed block, and the pusher cylinder is connected to the fixed seat via a transmission shaft to push the fixed seat to slide back and forth on the guide plate; The positioning assembly includes a positioning frame and a positioning rod, the positioning frame is installed on the rotating seat, the positioning rod is coaxially arranged with the motor output shaft, and is telescopically inserted into the positioning frame and the rotating seat in sequence, and one side of the positioning rod is provided with an ejection cylinder installed on the workbench, and the ejection cylinder is transmission-connected with the positioning rod through a driving shaft to push the positioning rod to realize telescopic movement in the positioning frame; The base is provided with a bracket, and the bracket is provided with a hollow mounting cavity, and mounting blocks are provided at both ends of the mounting cavity, and the mounting blocks at both ends are provided with mounting holes located on the same axis, and the rotating seat is an L-shaped structure, including a horizontal mounting portion and a vertical positioning portion, and the mounting portion is provided with an axial hole with openings at both ends, and a rotating shaft is provided in the axial hole, and both ends of the rotating shaft can be rotatably inserted in the mounting hole, so that the rotating seat can be rotatably and swingably installed on the bracket, and a reset component is provided at the end of the rotating shaft, which is located on the outside of the bracket and is used to drive the rotating seat to swing and reset on the bracket, and the positioning portion is provided with a positioning hole, and a bearing located on the same axis as the motor output shaft is provided in the positioning hole, and a first sleeve is provided in the bearing; The fixing seat comprises a material loading rail and a transmission block, the material loading rail is provided with a material trough for fixing the micro motor to be processed, both sides of the transmission block are provided with connecting holes, and movable pull rods are provided in the connecting holes, the pull rods are fixedly connected to the material loading rail by threads, and a buffer spring is provided on the pull rod, one end of the buffer spring abuts against the material loading rail, and the other end abuts against the transmission block; A push shaft is provided on one side of the transmission block, and the push shaft is provided with a hollow installation cavity. A second sleeve is provided in the installation cavity coaxially with the motor output shaft. The transmission block is connected to the transmission shaft of the pushing cylinder so that the transmission block can push out or pull back the loading rail under the drive of the pushing cylinder.

2. According to claim 1, a positioning mechanism of a micro-motor automatic cochlear rolling device is characterized in that: The guide plate is fixedly mounted on the mounting portion, a slide rail is provided on the guide plate, the fixed seat is slidably mounted on the slide rail through a slider, an oil baffle plate installed on the guide plate is provided between the fixed seat and the positioning portion, a working chamber for performing worm gear operation on the motor output shaft is formed between the oil baffle plate and the positioning portion, and the oil baffle plate is provided with a guide hole located on the same axis as the motor output shaft.

3. The positioning mechanism of the micro-motor automatic cochlear rolling device according to claim 1, characterized in that: The reset assembly includes a rotating block and a reset spring. The outer periphery of the rotating block is provided with an inwardly recessed annular recess. The rotating block is sleeved on the end of the rotating shaft to achieve synchronous rotational movement with the rotating shaft. The reset spring is provided on the annular recess. One end of the reset spring is fixed to the rotating block by a first locking screw, and the other end is fixed to the bracket by a second locking screw.

4. The positioning mechanism of the micro-motor automatic cochlear rolling device according to claim 1, characterized in that: The positioning rod is inserted in the first sleeve, a first limiting ring sleeved on the positioning rod is arranged between the positioning frame and the positioning part, a second limiting ring sleeved on the positioning rod is arranged on the outer side of the positioning frame, and a return spring sleeved on the positioning rod is arranged between the positioning frame and the first limiting ring.

5. The positioning mechanism of the micro motor automatic cochlear rolling device according to claim 1, characterized in that: A sensor for detecting whether the motor on the fixing seat is in place is arranged on one side of the guide plate.

6. The positioning mechanism of the micro-motor automatic cochlear rolling device according to claim 1, characterized in that: A push block for pushing the positioning rod is arranged at the end of the driving shaft.

7. The positioning method of the positioning mechanism of the micro-motor automatic cochlear rolling device according to claim 2, characterized in that: The following steps are involved: (1) Detection: Use the sensor on one side of the guide plate to detect the fixed seat and check whether the motor in the material trough of the material rail is in place; (2) Pushing: When the motor is loaded on the fixed seat, the pushing cylinder pushes out the transmission block through the transmission shaft, so that the transmission block drives the push shaft to move toward the motor, so that the output shaft at the tail end of the motor is clamped in the second sleeve in the push shaft, and the transmission block pushes the loading rail carrying the motor to the oil baffle; (3) Positioning: When the motor is pushed to the oil baffle, the output shaft at the front end of the motor extends through the guide hole on the oil baffle into the working chamber, and the output shaft extends into the first sleeve of the bearing. At the same time, the ejection cylinder is started, and the drive shaft pushes the positioning rod toward the motor through the push block, so that the positioning rod coaxially abuts against the output shaft in the bearing to achieve axial positioning of the motor. (4) Reset: After the motor output shaft completes processing, the push cylinder starts, and the transmission shaft pulls the transmission block in the opposite direction, so that the transmission block pulls the loading rail back to the starting position through the pull rod. At the same time, the ejection cylinder starts, the drive shaft retracts, and the push block is released from the positioning rod, so that the positioning rod rebounds to the starting position under the action of the reset spring, completing the reset.

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