Equipment for repairing armature worm of gear motor

Abstract

The utility model discloses a device for repairing an armature worm of a gear motor, which comprises a rack, a fixed seat, a movable seat, a driving device, a first thread rolling wheel and a second thread rolling wheel, the fixed seat is fixedly arranged on the rack, and the movable seat can be arranged on the rack in a sliding manner along the direction close to or far away from the fixed seat through the driving device. A first main shaft and a second main shaft are rotationally arranged on the fixed seat and the movable seat respectively, the first main shaft and the second main shaft rotate through a connecting motor, and the first thread rolling wheel and the second thread rolling wheel are installed on the first main shaft and the second main shaft in a linkage mode respectively; the rack is further provided with a dust removal mechanism used for removing dust and chippings generated when the worm is repaired through the first thread rolling wheel and the second thread rolling wheel. According to the utility model, the damage or deformation of the tooth profile of the worm during a plurality of production links of the armature part can be repaired, the integrated precision of the armature and the worm is ensured, the reject ratio of the armature part is reduced, the noise of the gear motor is reduced, and the qualified rate and mechanical performance of the gear motor are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts processing equipment, in particular to a device for repairing an armature worm of a reduction motor. Background Art

[0002] In the reduction motor, most of the worms are integrated with the armature shaft. The tooth profile accuracy of the worm is a key factor affecting the motor noise. Only by ensuring the tooth profile accuracy of the worm on the armature shaft can the motor noise be guaranteed and the motor performance be improved.

[0003] The following steps are required to complete the integrated manufacturing of the armature and worm: press the armature shaft into the inner hole of the core assembly; insert the end insulation; insert the insulating paper into the slot of the core assembly; press in the commutator; wind the enameled wire; spot weld the commutator; turn the outer circle of the commutator; test the comprehensive performance of the armature components; press in the open retaining spring; and calibrate the dynamic balance. These 10 steps complete the integrated manufacturing process of the armature and worm.

[0004] However, in the multiple production links of manufacturing the armature-worm integrated component, the worm tooth profile is damaged or deformed; the worm tooth profile accuracy grade of the armature shaft has large deviations; there is stress concentration on the armature shaft and worm. These technical problems cannot be solved in the above 10 processes and tend to expand. Utility Model Content

[0005] The purpose of the utility model is to provide a device for repairing the armature worm of a reduction motor. The utility model can repair the worm tooth profile that is damaged or deformed during multiple production links of the armature component, thereby ensuring the accuracy of the armature worm integration, reducing the defective rate of the armature component, reducing the noise of the reduction motor, and improving the qualified rate and mechanical properties of the reduction motor.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for repairing the armature worm of a reduction motor, comprising a frame, a fixed seat, a movable seat, a driving device, a first thread rolling wheel and a second thread rolling wheel, wherein the fixed seat is fixedly mounted on the frame, and the movable seat can be slidably arranged on the frame in a direction close to or away from the fixed seat through the driving device, and a first main shaft and a second main shaft are rotatably arranged on the fixed seat and the movable seat respectively, and the first main shaft and the second main shaft are rotated by connecting a motor, and the first thread rolling wheel and the second thread rolling wheel are respectively installed on the first main shaft and the second main shaft in a linkage manner; the frame is also provided with a dust removal mechanism for removing dust and debris generated when the first thread rolling wheel and the second thread rolling wheel repair the worm.

[0007] By adopting the above technical solution, when the armature worm of the reduction motor needs to be repaired, start the driving device, place the armature component with machining allowance on the first thread rolling wheel, and require the worm tooth profile to be aligned with the tooth profile of the fixed thread rolling wheel. Start the driving device to prompt the second thread rolling wheel to move closer to the first thread rolling wheel for rolling, and finally retract the second thread rolling wheel to the initial position to complete the rolling process, thereby realizing the repair of the motor armature worm. This ensures the accuracy of the integral armature worm, reduces the defective rate of the armature component, reduces the noise of the reduction motor, improves the qualified rate and mechanical properties of the reduction motor, and has very high practicality in the actual production of the reduction motor.

[0008] The present utility model is further configured such that the dust removal mechanism includes an air suction box, a filter box, and a fan. The air suction box is fixedly installed on the fixed seat. The bottom of the air suction box is provided with an air suction nozzle, and the air suction nozzle is arranged above the side of the first thread rolling wheel close to the second thread rolling wheel. An installation groove with a front end opening and an internal shape corresponding to the outer shape of the filter box is provided on the frame. The filter box is inserted into the installation groove. The filter box stores filter water. A partition extends downward from the top inside the filter box, and a part of the partition extends into the filter water, separating the positions on both sides above the filter water in the filter box into a pre-filter chamber and a post-filter chamber. The upper end of the filter box is provided with an air inlet communicating with the pre-filter chamber, and the lower end of the filter box is provided with an air outlet. And an air suction pipe extending upward and extending into the post-filter chamber is provided at the position corresponding to the inner end of the air outlet in the filter box. At the positions above and below the installation groove on the frame, a first joint communicating with the air inlet and a second joint communicating with the air outlet are respectively provided. The first joint is communicated with the air suction box through a pipeline, and the second joint is communicated with the inlet of the fan through a pipeline.

[0009] By adopting the above technical solution, when repairing the motor armature worm, a certain amount of dust and debris will be generated. The dust and debris can be removed by the dust removal mechanism to ensure the cleanliness of the surfaces of the two rolling wheels and improve their service life. When the fan works, the dust and debris are sucked in by the air suction nozzle of the air suction box and conveyed to the filter box through the pipeline. Due to the blocking of the partition, the gas in the pre-filter chamber needs to pass through the filter water for water filtration to reach the post-filter chamber. The filter water removes the dust and debris in the gas, and the filtered gas is extracted by the air suction pipe to prevent a large amount of dust and debris from existing in the gas discharged by the fan.

[0010] The present utility model is further configured such that a first sealing gasket for sealingly cooperating with the inner wall of the installation groove is installed at the upper end of the filter box, and the first sealing gasket surrounds the air inlet. A second sealing gasket for sealingly cooperating with the inner wall of the installation groove is installed at the lower end of the filter box, and the second sealing gasket surrounds the air outlet.

[0011] By adopting the above technical solutions, the sealing performance at the air inlet and outlet of the filter box can be ensured, avoiding gas leakage, and thus improving the dust removal effect.

[0012] The present utility model is further configured such that the partition plate extends obliquely downward in the direction close to the post-filtration cavity.

[0013] By adopting the above technical solutions, the obliquely arranged partition plate not only blocks the gas but also plays a guiding role, making it easier for the gas in the pre-filtration cavity to pass through the filtering water and enter the post-filtration cavity.

[0014] The present utility model is further configured such that a baffle extending downward and not extending into the filtering water is provided at the top inside the filter box, the lower end face of the baffle is lower than the upper end face of the air suction pipe, and the baffle is arranged on the side of the air suction pipe close to the pre-filtration cavity.

[0015] By adopting the above technical solutions, it can further play a role in dust blocking, thereby improving the filtering effect.

[0016] The present utility model is further configured such that a handle is provided at the front end of the filter box, and a guiding inclined surface is provided at the lower edge of the rear end of the filter box.

[0017] By adopting the above technical solutions, the handle provided on the filter box facilitates pulling out the filter box for subsequent cleaning, and the guiding inclined surface provided on the filter box facilitates loading the filter box into the installation slot.

[0018] The present utility model is further configured such that a lock groove is provided at the bottom of the filter box, a screw hole corresponding to the lock groove is provided at the position corresponding to the bottom of the installation slot on the frame, a locking screw is threadedly connected to the screw hole, and the upper end of the locking screw extends into or out of the lock groove to achieve locking or unlocking of the filter box.

[0019] By adopting the above technical solutions, a locking structure is provided, which can prevent the filter box from being accidentally pulled out by the staff during use, resulting in the situation of dust flying.

[0020] The present utility model is further configured such that a water injection hole is provided on the side of the filter box, a plug is inserted into the water injection hole, and a transparent observation window for observing the internal water level is provided on the front of the filter box.

[0021] By adopting the above technical solutions, the internal water level situation can be observed through the transparent observation window, so as to add water in time when the water level is low, and at the same time clean when there is too much stain. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the whole of the present utility model;

[0023] Figure 2 is a schematic internal structural diagram of the filter box of the present utility model;

[0024] Figure 3 This is a schematic diagram of the external structure of the filter box of the present utility model;

[0025] Figure 4 This is a schematic diagram of the locking structure between the filter box of the present utility model and the installation groove.

[0026] In the figure: 1, frame; 2, fixed seat; 3, moving seat; 4, driving device; 5, first thread rolling wheel; 6, second thread rolling wheel; 7, first main shaft; 8, second main shaft; 9, motor; 10, dust removal mechanism; 11, air suction box; 12, filter box; 13, fan; 14, air suction nozzle; 15, installation groove; 16, filtered water; 17, partition board; 18, pre-filter chamber; 19, post-filter chamber; 20, air inlet; 21, air outlet; 22, air suction pipe; 23, first joint; 24, second joint; 25, first gasket; 26, second gasket; 27, baffle; 28, handle; 29, guiding inclined surface; 30, locking groove; 31, screw hole; 32, locking screw; 33, water injection hole; 34, plug; 35, transparent observation window. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] Embodiment: As shown in the appendix Figures 1 to 4A device for repairing the armature worm of a reduction motor can adopt a traditional extrusion device (i.e., a thread rolling machine). During the preliminary tooth profile machining of the armature worm of the motor, a certain machining allowance is reserved. It includes a frame 1, a fixed seat 2, a moving seat 3, a driving device 4, a first thread rolling wheel 5 and a second thread rolling wheel 6. The fixed seat 2 is fixedly installed on the frame 1. The moving seat 3 is slidably arranged on the frame 1 along a direction close to or away from the fixed seat 2 through the driving device 4. A guide groove can be arranged at the bottom of the moving seat 3, and a guide rail is arranged on the frame 1, so that the moving seat 3 can stably and directionally slide under the action of the driving device 4. The first main shaft 7 and the second main shaft 8 are respectively rotatably arranged on the fixed seat 2 and the moving seat 3. The first main shaft 7 and the second main shaft 8 are rotated through a connecting motor 9. The first thread rolling wheel 5 and the second thread rolling wheel 6 are respectively linked and installed on the first main shaft 7 and the second main shaft 8, and can adopt the way of key connection or interference fit. An air dust removal mechanism 10 for removing dust and debris generated when the first thread rolling wheel 5 and the second thread rolling wheel 6 repair the worm is also arranged on the frame 1. When it is necessary to repair the armature worm of the reduction motor, start the driving device 4, place the armature component with machining allowance on the first thread rolling wheel 5, and require the worm tooth profile to be aligned with the tooth profile of the fixed thread rolling wheel. Start the driving device 4 to prompt the second thread rolling wheel 6 to move closer to the first thread rolling wheel 5 for rolling, and finally retreat the second thread rolling wheel 6 to the initial position to complete the rolling process, thereby realizing the repair of the armature worm of the motor. Rolling the workpiece under cold state within its rolling pressure range can effectively improve the internal and surface quality of the workpiece. The radial compressive stress generated during machining can significantly improve the fatigue strength and torsional strength of the workpiece, and it is an ideal process with energy saving and low consumption. It ensures the accuracy of the integral armature worm, reduces the defective rate of the armature component, reduces the noise of the reduction motor 9, improves the qualified rate and mechanical performance of the reduction motor 9, and has very high practicality in the actual production of the reduction motor 9.

[0029] As shown in the appendix Figure 2 and the appendix Figure 3As shown, the dust removal mechanism 10 includes a suction box 11, a filter box 12 and a fan 13. The suction box 11 is fixedly installed on the fixed seat 2 by screws. A suction nozzle 14 is provided at the bottom of the suction box 11, and the suction nozzle 14 is arranged above the side of the first thread rolling wheel 5 close to the second thread rolling wheel 6. An installation groove 15 with a front end opening and an internal shape corresponding to the outer shape of the filter box 12 is provided on the frame 1. The filter box 12 is inserted into the installation groove 15, which is equivalent to a drawer. Filter water 16 is stored in the filter box 12, and clean water is sufficient. A partition 17 extends downward from the top inside of the filter box 12, and the partition 17 partially extends into the filter water 16, separating the positions on both sides above the filter water 16 inside the filter box 12 into a pre-filter chamber 18 and a post-filter chamber 19. An air inlet 20 communicating with the pre-filter chamber 18 is provided at the upper end of the filter box 12, and an air outlet 21 is provided at the lower end of the filter box 12. And an air suction pipe 22 extending upward and extending into the post-filter chamber 19 is provided at the position corresponding to the inner end of the air outlet 21 inside the filter box 12. At the positions above and below the installation groove 15 on the frame 1, a first joint 23 communicating with the air inlet 20 and a second joint 24 communicating with the air outlet 21 are respectively provided. The first joint 23 and the second joint 24 can be flange joints, and the pipeline is in threaded or interference fit with the first joint 23 and the second joint 24. The first joint 23 is communicated with the suction box 11 through a pipeline, and the second joint 24 is connected to the inlet of the fan 13 through a pipeline. The fan 13 discharges the gas to the outside through a pipeline. When repairing the armature worm of the motor, a certain amount of dust and debris will be generated. The dust and debris can be removed by the dust removal mechanism 10 to ensure the cleanliness of the surfaces of the two rolling wheels and improve their service life. When the fan 13 works, the dust and debris are sucked in by the suction nozzle 14 of the suction box 11 and conveyed to the inside of the filter box 12 through the pipeline. Due to the blockage of the partition 17, the gas in the pre-filter chamber 18 needs to pass through the filter water 16 for water filtration and reach the post-filter chamber 19. The filter water 16 removes the dust and debris in the gas, and the filtered gas is extracted by the air suction pipe 22 to prevent a large amount of dust and debris from existing in the gas discharged by the fan 13.

[0030] As shown in the attachment Figure 3 As shown, a first sealing gasket 25 for forming a sealing fit with the inner wall of the installation groove 15 is installed at the upper end of the filter box 12. The first sealing gasket 25 is in the shape of a rectangular ring, and the first sealing gasket 25 surrounds the air inlet 20. A second sealing gasket 26 for forming a sealing fit with the inner wall of the installation groove 15 is installed at the lower end of the filter box 12. The second sealing gasket 26 is in the shape of a circle, and the second sealing gasket 26 surrounds the air outlet 21. This design can ensure the sealing performance at the air inlet 20 and the air outlet 21 of the filter box 12, avoid gas leakage, and thus improve the dust removal effect.

[0031] As shown in the attachment Figure 2As shown, the partition plate 17 extends obliquely downward in the direction close to the post-filter chamber 19. The obliquely arranged partition plate 17 not only blocks the gas but also plays a guiding role, making it easier for the gas in the pre-filter chamber 18 to pass through the filtered water 16 and enter the post-filter chamber 19.

[0032] As shown in the Figure 2 attachment, a baffle 27 extending downward and not extending into the filtered water 16 is provided at the top inside the filter box 12, that is, there is a certain gap between the baffle 27 and the liquid level of the filtered water 16 for gas to pass through. The lower end surface of the baffle 27 is lower than the upper end surface of the air suction pipe 22, and the baffle 27 is arranged on the side of the air suction pipe 22 close to the pre-filter chamber 18. This design can further play a role in dust blocking, thereby improving the filtration effect.

[0033] As shown in the Figure 3 attachment, a handle 28 is provided at the front end of the filter box 12, and a guiding inclined surface 29 is provided at the lower edge of the rear end of the filter box 12. The handle 28 provided on the filter box 12 facilitates pulling out the filter box 12 for cleaning later, and the guiding inclined surface 29 provided on the filter box 12 facilitates loading the filter box 12 into the installation groove 15.

[0034] As shown in the Figure 2 and Figure 4 attachment, a lock groove 30 is provided at the bottom of the filter box 12, and a screw hole 31 corresponding to the lock groove 30 is provided at the position corresponding to the bottom of the installation groove 15 on the frame 1. A locking screw 32 is threadedly connected to the screw hole 31. When the locking screw 32 is rotated, the locking screw 32 moves up and down, and the upper end of the locking screw 32 extends into or out of the lock groove 30 to lock or unlock the filter box 12. The locking structure is provided to prevent the situation where the filter box 12 is accidentally pulled out by the staff during use, resulting in dust flying.

[0035] As shown in the Figure 3 attachment, a water injection hole 33 is provided on the side of the filter box 12, and a plug 34 is inserted into the water injection hole 33. The plug 34 can be made of rubber material, and the plug 34 is in interference fit with the water injection hole 33. A transparent observation window 35 for observing the internal water level is provided at the front of the filter box 12. The transparent observation window 35 can be made of glass or acrylic board. The internal water level situation can be observed through the transparent observation window 35 to add water in time when the water level is low, and to clean when there is too much stain.

[0036] The above-mentioned driving device 4 adopts a hydraulic press (it can also be a cylinder or a telescopic motor), and the above-mentioned motor 9 and the hydraulic press are controlled by a PLC.

[0037] The repair process of the motor armature worm is as follows:

[0038] 1. Start the equipment and adjust the indentation stroke of the first rolling wheel 5 and the second rolling wheel 6 on the surface of the workpiece;

[0039] 2. Set the stroke and rotational speed of the second thread rolling wheel 6 and enter the automatic program;

[0040] 3. Mate the motor armature worm with machining allowance with the first thread rolling wheel 5, and require that the tooth profile of the motor armature worm is aligned with the tooth profile of the first thread rolling wheel 5;

[0041] 4. Control the second thread rolling wheel 6 to move closer to the first thread rolling wheel 5 through the driving device 4 for rolling;

[0042] 5. The second thread rolling wheel 6 returns to the initial position to complete the rolling process.

Claims

1. A device for repairing the armature worm of a reduction motor, characterized in that: The invention comprises a frame (1), a fixed seat (2), a movable seat (3), a driving device (4), a first thread rolling wheel (5) and a second thread rolling wheel (6); the fixed seat (2) is fixedly mounted on the frame (1); the movable seat (3) can be slidably arranged on the frame (1) in a direction approaching or moving away from the fixed seat (2) through the driving device (4); a first main shaft (7) and a second main shaft (8) are rotatably arranged on the fixed seat (2) and the movable seat (3), respectively; the first main shaft (7) and the second main shaft (8) are rotated by connecting to a motor (9); the first thread rolling wheel (5) and the second thread rolling wheel (6) are respectively mounted on the first main shaft (7) and the second main shaft (8); and the frame (1) is also provided with a dust removal mechanism (10) for removing dust and debris generated when the first thread rolling wheel (5) and the second thread rolling wheel (6) are used to repair the worm.

2. The device for repairing the armature worm of a reduction motor according to claim 1 is characterized in that: The dust removal mechanism (10) comprises an air suction box (11), a filter box (12) and a fan (13); the air suction box (11) is fixedly mounted on a fixed seat (2); a suction nozzle (14) is provided at the bottom of the air suction box (11); the suction nozzle (14) is arranged above the first thread rolling wheel (5) on the side close to the second thread rolling wheel (6); the frame (1) is provided with a mounting groove (15) with a front end opening and an internal shape corresponding to the outer shape of the filter box (12); the filter box (12) is plugged into the mounting groove (15); filtered water (16) is stored in the filter box (12); a partition (17) extends downward from the top of the filter box (12); the partition (17) partially extends into the filtered water (16) to filter the corresponding filtered water (16) in the filter box (12) The positions on both sides above are divided into a pre-filter chamber (18) and a post-filter chamber (19); an air inlet (20) communicating with the pre-filter chamber (18) is provided at the upper end of the filter box (12); an air outlet (21) is provided at the lower end of the filter box (12); and an air suction pipe (22) extending upward and extending into the post-filter chamber (19) is provided at a position corresponding to the inner end of the air outlet (21) in the filter box (12); a first joint (23) communicating with the air inlet (20) and a second joint (24) communicating with the air outlet (21) are provided at positions above and below the corresponding mounting slot (15) on the frame (1); the first joint (23) is communicated with the air suction box (11) through a pipeline, and the second joint (24) is communicated with the inlet of the fan (13) through a pipeline.

3. The device for repairing the armature worm of a reduction motor according to claim 2 is characterized in that: A first sealing gasket (25) is installed at the upper end of the filter box (12) for forming a sealing fit with the inner wall of the installation groove (15), and the first sealing gasket (25) surrounds the air inlet (20). A second sealing gasket (26) is installed at the lower end of the filter box (12) for forming a sealing fit with the inner wall of the installation groove (15), and the second sealing gasket (26) surrounds the air outlet (21).

4. The device for repairing the armature worm of a reduction motor according to claim 2, characterized in that: The partition plate (17) extends obliquely from top to bottom in a direction close to the post-filter cavity (19).

5. The device for repairing the armature worm of a reduction motor according to claim 2, characterized in that: A baffle (27) extending downward and not extending into the filtered water (16) is provided at the top of the filter box (12); the lower end surface of the baffle (27) is lower than the upper end surface of the air suction pipe (22); and the baffle (27) is arranged on a side of the air suction pipe (22) close to the pre-filter chamber (18).

6. The device for repairing the armature worm of a reduction motor according to claim 2, characterized in that: The front end of the filter box (12) is provided with a handle (28), and the lower edge of the rear end of the filter box (12) is provided with a guide slope (29).

7. The device for repairing the armature worm of a reduction motor according to claim 6, characterized in that: A locking groove (30) is provided at the bottom of the filter box (12); a screw hole (31) corresponding to the locking groove (30) is provided at a position on the frame (1) corresponding to the bottom of the mounting groove (15); a locking screw (32) is threadedly connected to the screw hole (31); the upper end of the locking screw (32) extends into or leaves the locking groove (30) to achieve locking or unlocking of the filter box (12).

8. The device for repairing the armature worm of a reduction motor according to claim 2, characterized in that: A water injection hole (33) is provided on the side of the filter box (12), a plug (34) is plugged into the water injection hole (33), and a transparent observation window (35) for observing the internal water level is provided on the front of the filter box (12).

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