Fine polishing machine for motor commutator

Abstract

The utility model discloses a motor commutator fine polishing machine which comprises a working table and a first air cylinder, the first air cylinder is installed at the top end of the working table, a second air cylinder is installed at the top end of the working table on one side of the first air cylinder, and a bearing frame is installed at the top end of the working table on one side of the second air cylinder. A transverse grinding machine is installed at the output end of the first air cylinder and slidably connected with the workbench, a vertical grinding machine is installed at the output end of the second air cylinder and slidably connected with the workbench, and a jacking air cylinder is installed in the portion, on one side of the transverse grinding machine, of the workbench. The output end of the jacking air cylinder is movably connected with the motor commutator, and a downward pressing air cylinder is installed at the top end of the bearing frame. According to the polishing device, the electric commutator can be conveniently centered, clamped and fixed, the commutator can be conveniently subjected to up-and-down reciprocating horizontal and vertical fine polishing and uniform fine polishing, and the polishing effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of precision polishing machine, concretely to a motor commutator precision polishing machine. BACKGROUND

[0002] The motor commutator, also known as a commutator, is an important component on the electric armature of a DC motor and an AC commutator motor, which is composed of a cylindrical or disc-shaped structure of many copper sheets, and the copper sheets are separated by mica sheets or other insulating materials. Each copper sheet is connected to the armature winding element. When the armature of the motor rotates, the copper sheet successively contacts the fixed brush. The surface of the motor commutator is relatively rough after production. In order to ensure that the surface of the commutator is smooth enough for contact with the carbon brush, the motor commutator needs to be polished. In order to better polish the motor commutator, a motor commutator precision polishing machine is proposed.

[0003] As disclosed in the authorized announcement No. CN219925562U, a toy motor commutator polishing device includes a machine table, a turntable and a polishing unit are provided on the machine table, a plurality of fixing seats for placing the rotor and driving the rotor to rotate are uniformly distributed around the axis of the turntable; the polishing unit includes a roll, a winding module and two sliding tables, at least two first tensioning wheels are provided on the sliding table, a second tensioning wheel is provided on the machine table, the second tensioning wheel is located between the two sliding tables, and the sliding table is divided into a first sliding table and a second sliding table along the rotation direction of the turntable.

[0004] Although it realizes rough polishing and fine polishing of the rotor commutator, thereby shortening the polishing time, the polished abrasive belt is moved to the rough polishing station, the abrasive belt is fully utilized, and the polishing quality is ensured;

[0005] However, it does not solve the problem that the existing precision polishing machine is not convenient to center, clamp and fix the electric commutator, is not conducive to the up-down reciprocating movement of the commutator, and affects the polishing effect. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a motor commutator precision polishing machine to solve the problem that the precision polishing machine is not convenient to center, clamp and fix the electric commutator, is not conducive to the up-down reciprocating movement of the commutator, and affects the polishing effect.

[0007] To achieve the above object, the utility model provides following technical scheme: a motor commutator precision polisher, including work table and first air cylinder, the top of work table is installed with first air cylinder, the top of work table of first air cylinder side is installed with second air cylinder, the top of work table of second air cylinder side is installed with bearing frame, the output of first air cylinder is installed with transverse polisher, and transverse polisher is connected with work table slidingly, the output of second air cylinder is installed with vertical polisher, and vertical polisher is connected with work table slidingly, the inside of work table of transverse polisher side is installed with jacking cylinder, and the output of jacking cylinder is connected with motor commutator movably, the top of bearing frame is installed with down -pressing cylinder, the output of down -pressing cylinder is installed with rotary seat, the inside of rotary seat is movably installed with worm, the lateral wall of rotary seat is installed with drive motor, and the output of drive motor is connected with worm, the inside of rotary seat of worm side is movably installed with rotating shaft, and rotating shaft extends to the outside of rotary seat, the surface of rotating shaft is installed with worm wheel, and worm wheel is engaged with worm, the bottom of rotating shaft is installed with bearing plate.

[0008] Preferably, the bottom of the bearing plate is installed with three groups of placement seats at equal intervals, and a limiting ring is arranged below the bearing plate and connected with the placement seats.

[0009] Preferably, the inside of the limiting ring is provided with a gear ring, and the gear ring is slidingly connected with the limiting ring.

[0010] Preferably, a servo motor is installed on the outer wall of the bearing plate, and the output of the servo motor is installed with a linkage shaft.

[0011] Preferably, a gear is installed on the surface of the linkage shaft, and the gear is engaged with the gear ring.

[0012] Preferably, a clamping arm is movably installed in the inside of each placement seat, and an active shaft is installed on the lateral wall of the clamping arm, and the clamping arm is movably connected with the placement seat through the active shaft.

[0013] Preferably, a spring is installed at the bottom of the clamping arm, and the spring is connected with the placement seat.

[0014] Preferably, three groups of arc-shaped blocks at equal intervals are installed on the inner wall of the gear ring, and the arc-shaped blocks are slidingly connected with the clamping arms.

[0015] Compared with the prior art, the utility model has the beneficial effects that: the precision polisher not only realizes convenient centering, clamping and fixing of the motor commutator, facilitates the up-down reciprocating movement of the commutator for horizontal and vertical fine polishing and the uniform fine polishing of the commutator, but also improves the polishing effect.

[0016] (1) the top end of the commutator is moved to the inside of the limiting ring by the upward movement of the electric commutator driven by the jacking cylinder, the gear is driven to rotate by the linkage shaft driven by the servo motor, the gear ring is driven to rotate by the gear, the arc block is driven to rotate by the gear ring, so that the arc block moves from the place with a relatively gentle slope to the place with a relatively steep slope, the clamping arm is squeezed and driven to rotate around the movable shaft by the arc block, the spring is pulled by the clamping arm, so that the three sets of clamping arms clamp the top end of the commutator, the transverse polisher is moved and attached to the surface of the commutator by the first cylinder, the surface of the commutator is polished transversely by the transverse polisher, meanwhile, the second cylinder and the vertical polisher are opened, the vertical polisher is moved and attached to the surface of the commutator by the second cylinder, the surface of the commutator is polished vertically by the vertical polisher, the jacking cylinder is retracted while the downward cylinder moves downward, so as to drive the commutator to move up and down, and the surface of the commutator is finely polished, the electric commutator is conveniently clamped and fixed in the center, and the commutator is conveniently moved up and down for transverse and vertical fine polishing;

[0017] (2) the worm is driven to rotate by the driving motor, the rotating shaft is driven to rotate by the worm through the worm gear, the commutator is driven to rotate by the rotating shaft, so as to rotate the unpolished position to the polishing machine position, and the commutator is uniformly and finely polished, after polishing, the servo motor is opened in reverse, the gear ring is driven to rotate in reverse by the servo motor, and the clamping arm is reset under the elastic action of the spring, so as to separate the commutator from the clamping arm, then a new commutator is placed for polishing again, the commutator is conveniently and uniformly finely polished, and the polishing effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0019] Figure 2 It is a three-dimensional perspective structure schematic view of the workbench of the utility model;

[0020] Figure 3 It is a side view sectional structure schematic view of the rotating seat of the utility model;

[0021] Figure 4 It is a three-dimensional structure schematic view of the bearing plate of the utility model;

[0022] Figure 5 It is a side view sectional structure schematic view of the placing seat of the utility model.

[0023] In the figure: 1, workbench; 2, first cylinder; 3, second cylinder; 4, bearing frame; 5, vertical polisher; 6, horizontal polisher; 7, jacking cylinder; 8, pressing cylinder; 9, rotating seat; 10, driving motor; 11, worm; 12, worm gear; 13, rotating shaft; 14, bearing plate; 15, placing seat; 16, limiting ring; 17, movable shaft; 18, clamping arm; 19, arc block; 20, tooth ring; 21, servo motor; 22, linkage shaft; 23, gear; 24, spring. DETAILED DESCRIPTION

[0024] In order to further illustrate the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes, the specific embodiments, structures, features and effects according to the utility model will be described in detail as follows in combination with the drawings and preferred embodiments.

[0025] Please refer to Figures 1-5 The utility model provides an embodiment: a motor commutator precision polishing machine, including workbench 1 and first cylinder 2, the top of workbench 1 is installed with first cylinder 2, first cylinder 2 plays the role of power drive, the top of workbench 1 on the side of first cylinder 2 is installed with second cylinder 3, and second cylinder 3 plays the role of power drive, the top of workbench 1 on the side of second cylinder 3 is installed with bearing frame 4, the output end of first cylinder 2 is installed with horizontal polisher 6, and horizontal polisher 6 is connected with workbench 1 slidingly, the output end of second cylinder 3 is installed with vertical polisher 5, and vertical polisher 5 is connected with workbench 1 slidingly, the inside of workbench 1 on the side of horizontal polisher 6 is installed with jacking cylinder 7, jacking cylinder 7 plays the role of power drive, and the output end of jacking cylinder 7 is movably connected with motor commutator, the top of bearing frame 4 is installed with pressing cylinder 8, and pressing cylinder 8 plays the role of power drive, the output end of pressing cylinder 8 is installed with rotating seat 9, the inside of rotating seat 9 is movably installed with worm 11, driving motor 10 is installed on the side wall of rotating seat 9, driving motor 10 plays the role of power drive, the output end of driving motor 10 is connected with worm 11, the inside of rotating seat 9 on the side of worm 11 is movably installed with rotating shaft 13, and rotating shaft 13 extends to the outside of rotating seat 9, the surface of rotating shaft 13 is sleeved with worm gear 12, and worm gear 12 is engaged with worm 11, and the bottom end of rotating shaft 13 is installed with bearing plate 14.

[0026] The motor commutator is vertically placed, the bottom end is placed on the output end of the jacking cylinder 7, the jacking cylinder 7 is opened, the electric commutator is driven by the jacking cylinder 7 to move upwards, so that the top end of the commutator moves to the inside of the limiting ring 16, then the servo motor 21 is opened, the gear 23 is driven by the servo motor 21 through the linkage shaft 22, under the mutual meshing of the gear 23 and the gear ring 20, under the sliding fit of the gear ring 20 and the limiting ring 16, the gear ring 20 is driven to rotate by the gear 23, the arc block 19 is driven to rotate by the gear ring 20, so that the arc block 19 moves from the place with relatively gentle slope to the place with relatively steep slope, so that the arc block 19 extrudes the clamping arm 18 and drives the clamping arm 18 to rotate around the movable shaft 17, the spring 24 is pulled by the clamping arm 18, so that the three groups of clamping arms 18 center clamping the top end of the commutator, then the first cylinder 2 and the transverse polisher 6 are opened, the transverse polisher 6 is driven by the first cylinder 2 to move and stick to the surface of the commutator, the transverse polisher 6 is used to polish the surface of the commutator horizontally, at the same time, the second cylinder 3 and the vertical polisher 5 are opened, the vertical polisher 5 is driven by the second cylinder 3 to move and stick to the surface of the commutator, the vertical polisher 5 is used to polish the surface of the commutator vertically, then the down pressure cylinder 8 and the jacking cylinder 7 are opened at the same time, the down pressure cylinder 8 moves downward while the jacking cylinder 7 contracts, to drive the commutator to move up and down, to finely polish the surface of the commutator, realizing the convenient center clamping of the electric commutator, facilitating the up and down reciprocating movement of the commutator for horizontal and vertical fine polishing;

[0027] The bottom end of the bearing plate 14 is provided with three groups of placing seats 15 at equal intervals, and the lower side of the bearing plate 14 is provided with a limiting ring 16 connected with the placing seats 15;

[0028] The inside of the limiting ring 16 is provided with a gear ring 20 in sliding connection with the limiting ring 16, and the outer wall of the bearing plate 14 is provided with a servo motor 21 serving as a power driver, and the output end of the servo motor 21 is provided with a linkage shaft 22;

[0029] The surface of the linkage shaft 22 is provided with a gear 23 in mutual meshing with the gear ring 20, and the inside of the placing seat 15 is provided with a clamping arm 18 in active installation, and the side wall of the clamping arm 18 is provided with a movable shaft 17 in active connection with the placing seat 15 through the movable shaft 17;

[0030] The bottom end of the clamping arm 18 is provided with a spring 24 in connection with the placing seat 15, and the inner wall of the gear ring 20 is provided with three groups of arc blocks 19 at equal intervals in sliding connection with the clamping arm 18;

[0031] The driving motor 10 is opened, the worm 11 is rotated by the driving motor 10, the rotating shaft 13 is rotated by the worm 11 through the worm gear 12 under the mutual engagement of the worm 11 and the worm gear 12, the commutator is rotated by the rotating shaft 13, the unpolished position is rotated to the polishing machine position, the commutator is uniformly and finely polished, after polishing, the servo motor 21 is opened in reverse, the gear ring 20 is rotated in reverse by the servo motor 21, and the clamping arm 18 is reset under the elastic action of the spring 24, so that the commutator is separated from the clamping arm 18, then a new commutator is placed for polishing again, which facilitates the uniform and fine polishing of the commutator and improves the polishing effect.

[0032] Working principle: the motor commutator is vertically placed, the bottom end is placed on the output end of the jacking cylinder 7, the motor commutator is moved upward by the jacking cylinder 7, the top end of the commutator is moved to the inside of the limiting ring 16, the gear 23 is rotated by the servo motor 21 through the connecting shaft 22, the gear ring 20 is rotated by the gear 23, the arc block 19 is rotated by the gear ring 20, the arc block 19 is moved from the gentle slope to the steep slope, the arc block 19 extrudes and rotates the clamping arm 18 with the movable shaft 17 as the axis, the spring 24 is pulled by the clamping arm 18, the top end of the commutator is clamped by the three sets of clamping arms 18, the horizontal polisher 6 is moved and attached to the surface of the commutator by the first cylinder 2, the surface of the commutator is polished horizontally by the horizontal polisher 6, the vertical polisher 5 is moved and attached to the surface of the commutator by the second cylinder 3, the surface of the commutator is polished vertically by the vertical polisher 5, the jacking cylinder 7 is retracted while the down cylinder 8 moves downward, the commutator is moved up and down, the surface of the commutator is finely polished, the driving motor 10 drives the worm 11 to rotate, the rotating shaft 13 is rotated by the worm 11 through the worm gear 12, the commutator is rotated by the rotating shaft 13, the unpolished position is rotated to the polishing machine position, the commutator is uniformly and finely polished, after polishing, the servo motor 21 is opened in reverse, the gear ring 20 is rotated in reverse by the servo motor 21, and the clamping arm 18 is reset under the elastic action of the spring 24, so that the commutator is separated from the clamping arm 18, then a new commutator is placed for polishing again, which facilitates the uniform and fine polishing of the commutator and improves the polishing effect.

[0033] The above merely describes preferred embodiments of the present application and is not intended to limit the present application in any form. Although the present application has been disclosed with preferred embodiments, it is not intended to limit the present application. Any person skilled in the art can make minor changes or modifications to the disclosed technical content to obtain equivalent embodiments with equivalent changes, as long as the changes or modifications do not deviate from the technical solution of the present application. Any indirect modification, equivalent change and modification of the above embodiments based on the technical essence of the present application still belong to the scope of the technical solution of the present application.

Claims

1. An electric machine commutator fine polishing machine comprising a worktable (1) and a first cylinder (2), characterized in that: The top end of the workbench (1) is provided with a first cylinder (2), one side of the first cylinder (2) is provided with a second cylinder (3) on the top end of the workbench (1), and the top end of the workbench (1) is provided with a bearing frame (4) on one side of the second cylinder (3). The output end of the first cylinder (2) is provided with a transverse sander (6), and the transverse sander (6) is slidably connected with the workbench (1); the output end of the second cylinder (3) is provided with a vertical sander (5), and the vertical sander (5) is slidably connected with the workbench (1); the inside of the workbench (1) on one side of the transverse sander (6) is provided with a jacking cylinder (7), and the output end of the jacking cylinder (7) is movably connected with a motor commutator; the top end of the bearing frame (4) is provided with a pressing cylinder (8), the output end of the pressing cylinder (8) is provided with a rotating seat (9), the inside of the rotating seat (9) is movably provided with a worm (11), the side wall of the rotating seat (9) is provided with a driving motor (10), and the output end of the driving motor (10) is connected with the worm (11); the inside of the rotating seat (9) on one side of the worm (11) is movably provided with a rotating shaft (13), and the rotating shaft (13) extends to the outside of the rotating seat (9); the surface of the rotating shaft (13) is provided with a worm wheel (12), and the worm wheel (12) is meshed with the worm (11); and the bottom end of the rotating shaft (13) is provided with a bearing plate (14).

2. A fine polishing machine for motor commutators according to claim 1, characterized in that: The bottom end of the bearing plate (14) is provided with three groups of placement seats (15) at equal intervals, and a limiting ring (16) is arranged below the bearing plate (14) and connected with the placement seats (15).

3. A fine polishing machine for commutators of electric machines according to claim 2, characterized in that: The inside of the limiting ring (16) is provided with a tooth ring (20), and the tooth ring (20) is slidably connected with the limiting ring (16).

4. A fine polishing machine for commutators of electric machines according to claim 1, characterized in that: A servo motor (21) is arranged on the outer wall of the bearing plate (14), and the output end of the servo motor (21) is provided with a linkage shaft (22).

5. A fine polishing machine for motor commutators according to claim 4, characterized in that: The surface of the linkage shaft (22) is provided with a gear (23), and the gear (23) is meshed with the tooth ring (20).

6. A fine polishing machine for motor commutators according to claim 2, characterized in that: The inside of the placement seat (15) is movably provided with a clamping arm (18), the side wall of the clamping arm (18) is provided with a movable shaft (17), and the clamping arm (18) is movably connected with the placement seat (15) through the movable shaft (17).

7. A fine polishing machine for motor commutators according to claim 6, characterized in that: The bottom end of the clamping arm (18) is provided with a spring (24), and the spring (24) is connected with the placement seat (15).

8. A fine polishing machine for commutators of electric machines according to claim 3, characterized in that: The inner wall of the tooth ring (20) is provided with three groups of arc-shaped blocks (19) at equal intervals, and the arc-shaped blocks (19) are slidably connected with the clamping arm (18).

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