Positioning device for rotor shaft machining

Abstract

The utility model relates to the technical field of motor rotor shaft machining, and discloses a positioning device for rotor shaft machining, which comprises a shell, the middle of the shell is rotatably connected with a sun gear, the interior of the shell is rotatably connected with a plurality of gears, the plurality of gears are meshed with the sun gear, the tops of the gears are fixedly connected with a turntable, and the turntable is fixedly connected with a rotating shaft. The top of the rotating disc is fixedly connected with an eccentric column, the interior of the shell is slidably connected with a plurality of connecting rod belts, and the eccentric column is arranged in the middles of the connecting rod belts. According to the utility model, the disc can twist and compress the clockwork spring by rotating the sun gear, meanwhile, the eccentric column can drive the connecting rod and the clamping plate to move, at the moment, a rotor shaft can be placed in the clamping device, the clamping plate can clamp and position the rotor shaft by loosening the sun gear and through the clockwork spring, and meanwhile, the clamping effect can be improved under the action of the rubber pad; and friction between the rotor shaft and the clamping plates during machining of the rotor shaft is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of motor rotor shaft processing, in particular to a positioning device for rotor shaft processing. Background Art

[0002] The rotor shaft is the core component of the motor, responsible for transmitting the driving force from the driving part to the rotating part, thereby driving the machine to operate normally. At the same time, the rotor shaft supports the rotor and the load, keeping them in the correct position to ensure the stable operation of the machine. It is used to output the motor power. The rotor shaft needs to be ground and polished during production, so a positioning device is required to position the rotor shaft.

[0003] The existing positioning device is usually composed of main components such as a motor, a bidirectional screw, a nut seat and an arc-shaped clamping plate. When in use, the bidirectional screw can drive the nut seat to move by driving the motor, and then the two arc-shaped clamping plates can clamp the rotor shaft. Although the positioning and fixing of the rotor shaft can be completed, there are still some shortcomings. In order to prevent the rotor shaft from being displaced during processing, the rotor shaft is usually clamped more rigidly. When processing one end of the rotor shaft, friction between the rotor shaft and the arc-shaped clamping plate will be caused, which will cause surface wear of the rotor shaft. Therefore, a positioning device for rotor shaft processing is proposed to solve the above problems. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a positioning device for rotor shaft processing, which aims to improve the situation in the prior art that in order to prevent the rotor shaft from being displaced during processing, the rotor shaft is usually clamped more rigidly, which will cause friction between the rotor shaft and the arc clamping plate when processing one end of the rotor shaft, thereby causing the surface wear of the rotor shaft.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a positioning device for rotor shaft processing, comprising a shell, a sun gear is rotatably connected to the middle part of the shell, a plurality of gears are rotatably connected to the inside of the shell, and the plurality of gears are meshed with the sun gear, a turntable is fixedly connected to the top of the gear, an eccentric column is fixedly connected to the top of the turntable, a plurality of connecting rod belts are slidably connected to the inside of the shell, the eccentric column is arranged in the middle part of the connecting rod belt, an L-shaped slider is fixedly connected to the outside of the connecting rod belt, the L-shaped slider is slidably connected to the middle part of the shell, a splint is fixedly connected to the top of the L-shaped slider, a rubber pad is fixedly connected to the outside of the splint, a reset assembly is fixedly connected to the bottom of the gear, and a locking assembly is fixedly connected to the bottom of the sun gear.

[0006] As a further description of the above technical solution:

[0007] The reset assembly comprises a disc, which is fixedly connected to the bottom of the gear, and a spring is fixedly connected to the other side of the connecting rod, and the other end of the spring is fixedly connected to the inside of the housing.

[0008] As a further description of the above technical solution:

[0009] The locking assembly includes a limit block, which is fixedly connected to the bottom of the sun gear, a ring is fixedly connected to the outer periphery of the outer shell, a compression spring is fixedly connected to the top of the ring, the other end of the compression spring is fixedly connected to a circular ring, the top of the circular ring is fixedly connected to the locking block, the locking block and the limit block are in contact, and the bottom of the circular ring is fixedly connected to the limit assembly.

[0010] As a further description of the above technical solution:

[0011] The limiting assembly comprises a limiting rod, the limiting rod is fixedly connected to the bottom of the circular ring, the other end of the limiting rod is fixedly connected to a partition, and the limiting rod is slidably connected to the middle part of the ring.

[0012] As a further description of the above technical solution:

[0013] A slide groove is provided on the top of the shell, and the L-shaped sliding block is slidably connected to the middle of the slide groove.

[0014] As a further description of the above technical solution:

[0015] One end of the shell away from the clamping plate is fixedly connected with a mounting plate, and the middle part of the mounting plate is slidably connected with a screw.

[0016] As a further description of the above technical solution:

[0017] A movable groove is provided inside the shell, the sliding groove is connected to the movable groove, and the connecting rod is slidably connected to the middle part of the movable groove.

[0018] As a further description of the above technical solution:

[0019] One side of the locking block is arranged in an arc shape.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, the sun gear is rotated to cause the disk to twist and compress the spring, and the eccentric column can drive the connecting rod and the clamping plate to move. At this time, the rotor shaft can be placed therein, and the clamping plate can clamp the rotor shaft in place by loosening the sun gear and using the spring. At the same time, the clamping effect can be improved under the action of the rubber pad, and the friction between the rotor shaft and the clamping plate when the rotor shaft is processed can be avoided.

[0022] 2. In the utility model, when the sun gear is rotated, the locking block can be squeezed, and then the circular ring can compress the compression spring. When the locking block is not squeezed by external force, the locking block can be ejected under the action of the compression spring, and then the sun gear can be limited. At this time, the employees can free their hands, and then the placement of the rotor shaft can be facilitated. The restriction on the sun gear can be released by pressing the circular ring downward, and then the placed rotor shaft can be clamped and positioned. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional schematic diagram of a positioning device for rotor shaft processing proposed by the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of a clamping plate of a positioning device for machining a rotor shaft proposed by the utility model;

[0025] Figure 3 This is a schematic diagram of the structure of a spring of a positioning device for machining a rotor shaft proposed by the utility model;

[0026] Figure 4 The utility model provides a schematic structural diagram of a locking block of a positioning device for machining a rotor shaft.

[0027] Legend:

[0028] 1. Housing; 2. Sun gear; 3. Gear; 4. Turntable; 5. Eccentric column; 6. Connecting rod belt; 7. L-shaped slider; 8. Clamp; 9. Limit block; 10. Ring; 11. Ring; 12. Locking block; 13. Compression spring; 14. Limit rod; 15. Partition; 16. Disc; 17. Spring; 18. Rubber pad; 19. Slide; 20. Mounting plate; 21. Movable slot. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Reference Figure 1-Figure 3The utility model provides an embodiment: a positioning device for rotor shaft processing, comprising a shell 1, a sun gear 2 is rotatably connected to the middle part of the shell 1, a plurality of gears 3 are rotatably connected to the inside of the shell 1, the plurality of gears 3 are all meshed with the sun gear 2, a turntable 4 is fixedly connected to the top of the gear 3, an eccentric column 5 is fixedly connected to the top of the turntable 4, a plurality of connecting rod belts 6 are slidably connected to the inside of the shell 1, the eccentric column 5 is arranged in the middle part of the connecting rod belt 6, the sun gear 2 can be driven to rotate, and when the gear 3 rotates, the turntable 4 can drive the eccentric column 5 to rotate around the turntable 4, and then the eccentric column 5 can drive the connecting rod belt 6 to move.

[0031] Reference Figure 1-Figure 3 An L-shaped slider 7 is fixedly connected to the outside of the connecting rod belt 6, and the L-shaped slider 7 is slidably connected to the middle part of the shell 1. A slide groove 19 is provided on the top of the shell 1, and the L-shaped slider 7 is slidably connected to the middle part of the slide groove 19. The L-shaped slider 7 can be limited by the slide groove 19, so that the L-shaped slider 7 can only move horizontally, and at the same time, the problem of the connecting rod belt 6 being offset under the drive of the eccentric column 5 can be prevented. An active groove 21 is provided inside the shell 1, and the slide groove 19 and the active groove 21 are connected. The connecting rod belt 6 is slidably connected to the middle part of the active groove 21. The sliding position of the connecting rod belt 6 can be provided by the active groove 21, and at the same time, the connecting rod belt 6 can drive the L-shaped slider 7 to move when it moves.

[0032] Reference Figure 1-Figure 3 The top of the L-shaped slider 7 is fixedly connected with a clamping plate 8, the outer side of the clamping plate 8 is fixedly connected with a rubber pad 18, and the bottom of the gear 3 is fixedly connected with a reset assembly. When the L-shaped slider 7 moves, the clamping plate 8 can move outward, thereby providing a space for placing the rotor shaft. At this time, after the rotor shaft is placed, the gear 3 can be rotated in the opposite direction through the reset assembly, so that the clamping plate 8 can clamp the rotor shaft in place. At the same time, the clamping effect can be improved under the action of the rubber pad 18, and the problem of friction between the rotor shaft and the clamping plate 8 when the rotor shaft is processed is avoided. The bottom of the sun gear 2 is fixedly connected with a locking assembly.

[0033] Reference Figure 2 and Figure 3 The reset assembly includes a disc 16, which is fixedly connected to the bottom of the gear 3. The other side of the connecting rod belt 6 is fixedly connected to a spring 17, and the other end of the spring 17 is fixedly connected to the inside of the housing 1. When the gear 3 rotates, the connecting rod belt 6 can rotate, and the spring 17 can be twisted and compressed. When the sun gear 2 is released, the gear 3 can rotate in the opposite direction under the action of the spring 17, and then the splint 8 can drive the rubber pad 18 to clamp the rotor shaft in place.

[0034] Reference Figure 1 and Figure 4The locking assembly includes a limit block 9, which is fixedly connected to the bottom of the sun gear 2. A ring 10 is fixedly connected to the outer periphery of the housing 1. A compression spring 13 is fixedly connected to the top of the ring 10. The other end of the compression spring 13 is fixedly connected to a circular ring 11. The top of the circular ring 11 is fixedly connected to a locking block 12. The locking block 12 contacts the limit block 9. One side of the locking block 12 is set in an arc shape. When the sun gear 2 rotates, the limit block 9 can apply force to the locking block 12. At this time, the arc shape can be set to enable the slide groove 19 to squeeze the locking block 12 and move the locking block 12 downward. When the locking block 12 moves downward, the circular ring 11 can compress the compression spring 13. When the locking block 12 is not squeezed by external force, the locking block 12 can be popped out under the action of the compression spring 13, thereby limiting the limit block 9. At this time, the position where the splint 8 stays can be maintained, thereby facilitating the placement of the rotor shaft.

[0035] Reference Figure 1 and Figure 4 By pressing the circular ring 11 downward, the locking block 12 can be separated from the limit block 9. At this time, under the action of the clockwork spring 17, the clamping plate 8 can complete the positioning of the rotor shaft. The bottom of the circular ring 11 is fixedly connected to the limit assembly. The limit assembly includes a limit rod 14, which is fixedly connected to the bottom of the circular ring 11. The other end of the limit rod 14 is fixedly connected to a partition 15. The limit rod 14 is slidably connected to the middle part of the ring 10. The circular ring 11 can be limited by the limit rod 14 and the partition 15, thereby preventing the circular ring 11 from stretching the compression spring 13 under the elastic force of the compression spring 13, causing the compression spring 13 to be deformed and damaged, thereby increasing the service life of the compression spring 13.

[0036] Reference Figure 1 One end of the shell 1 away from the clamping plate 8 is fixedly connected to the mounting plate 20, and the middle part of the mounting plate 20 is slidably connected to the screw. The shell 1 can be easily assembled and disassembled by the mounting plate 20 and the screw, and then the shell 1 can be installed at the required position.

[0037] Working principle: When in use, the sun gear 2 is rotated to drive the gear 3 and the turntable 4 to rotate. When the turntable 4 rotates, the disk 16 can twist and compress the spring 17, and at the same time, the eccentric column 5 can be driven to move. At this time, the connecting rod belt 6 can be limited by the action of the L-shaped slider 7, and then the connecting rod belt 6 and the L-shaped slider 7 can drive the clamping plate 8 to open outward while the eccentric column 5 moves, so that the rotor shaft can be placed therein. At this time, the sun gear 2 is loosened and the gear 3 can be rotated in the opposite direction under the action of the spring 17, so that the clamping plate 8 can clamp the rotor shaft in place. At the same time, the clamping effect can be improved under the action of the rubber pad 18, and the friction between the rotor shaft and the clamping plate 8 when the rotor shaft is processed can be avoided;

[0038] Among them, when the sun gear 2 is rotated, the locking block 12 can be squeezed, and then the ring 11 can compress the compression spring 13. At the same time, when there is no external force squeezing the locking block 12, the locking block 12 can be ejected under the action of the compression spring 13, and then the sun gear 2 can be limited. At this time, the employees can free their hands, which makes it easier to place the rotor shaft. The restriction on the sun gear 2 can be released by pressing the ring 11 downward, and the placed rotor shaft can be clamped and positioned.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A positioning device for machining a rotor shaft, comprising a housing (1), characterized in that: The middle part of the housing (1) is rotatably connected to a sun gear (2), the interior of the housing (1) is rotatably connected to a plurality of gears (3), the plurality of gears (3) are all meshed with the sun gear (2), the top of the gear (3) is fixedly connected to a turntable (4), the top of the turntable (4) is fixedly connected to an eccentric column (5), the interior of the housing (1) is slidably connected to a plurality of connecting rods (6), the eccentric column (5) is arranged in the middle part of the connecting rods (6), the outer side of the connecting rods (6) is fixedly connected to an L-shaped slider (7), the L-shaped slider (7) is slidably connected to the middle part of the housing (1), the top of the L-shaped slider (7) is fixedly connected to a clamp (8), the outer side of the clamp (8) is fixedly connected to a rubber pad (18), the bottom of the gear (3) is fixedly connected to a reset assembly, and the bottom of the sun gear (2) is fixedly connected to a locking assembly.

2. A positioning device for rotor shaft processing according to claim 1, characterized in that: The reset assembly comprises a disk (16), the disk (16) being fixedly connected to the bottom of the gear (3), the other side of the connecting rod belt (6) being fixedly connected to a spring (17), the other end of the spring (17) being fixedly connected to the inside of the housing (1).

3. A positioning device for rotor shaft processing according to claim 1, characterized in that: The locking assembly comprises a limit block (9), the limit block (9) is fixedly connected to the bottom of the sun gear (2), a collar (10) is fixedly connected to the outer periphery of the housing (1), a compression spring (13) is fixedly connected to the top of the collar (10), the other end of the compression spring (13) is fixedly connected to a circular ring (11), the top of the circular ring (11) is fixedly connected to a locking block (12), the locking block (12) and the limit block (9) are in contact, and the bottom of the circular ring (11) is fixedly connected to the limit assembly.

4. A positioning device for rotor shaft processing according to claim 3, characterized in that: The limiting assembly comprises a limiting rod (14), wherein the limiting rod (14) is fixedly connected to the bottom of the circular ring (11), the other end of the limiting rod (14) is fixedly connected to a partition (15), and the limiting rod (14) is slidably connected to the middle part of the sleeve ring (10).

5. The positioning device for rotor shaft machining according to claim 1, characterized in that: A slide groove (19) is provided on the top of the housing (1), and the L-shaped sliding block (7) is slidably connected to the middle of the slide groove (19).

6. A positioning device for rotor shaft machining according to claim 1, characterized in that: One end of the housing (1) away from the clamping plate (8) is fixedly connected to a mounting plate (20), and a screw is slidably connected to the middle of the mounting plate (20).

7. A positioning device for machining a rotor shaft according to claim 5, characterized in that: A movable groove (21) is provided inside the housing (1), the slide groove (19) is connected to the movable groove (21), and the connecting rod belt (6) is slidably connected to the middle part of the movable groove (21).

8. The positioning device for machining a rotor shaft according to claim 3, characterized in that: One side of the locking block (12) is arranged in an arc shape.

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