Rotor outer diameter grinding device of stepping motor

Abstract

The rotor outer diameter grinding device of the stepping motor comprises a machine box, two material disc assemblies and a taking and placing mechanism, the two material disc assemblies are arranged along the x axis and symmetrically distributed on inclined supporting tables on the two sides of the machine box, and a plurality of rotor assemblies to be ground which are evenly distributed in a dot matrix shape are placed on the tops of the material disc assemblies. The taking and placing mechanism is arranged in the machine box, extension box bodies are further fixed to the two sides of the machine box, and the ends of the taking and placing mechanism extend to the outer ends of the extension box bodies. The taking and placing mechanism comprises a track parallel to the x axis, an electric sliding block, an air cylinder and a clamp, and the air cylinder is parallel to the z axis; the electric sliding block is slidably arranged at the bottom of the rail. By arranging the taking and placing mechanism and the two sets of material disc assemblies, bidirectional automatic feeding and discharging are achieved, the grinding efficiency can be greatly improved, the specifications of the interiors of the material disc assemblies can be adjusted, the device can adapt to placement of shaft cores with different lengths, and the problems that feeding and discharging are not convenient enough and the grinding efficiency is low during grinding of an existing stepping motor rotor are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor production, in particular to a rotor outer diameter grinding device for a stepping motor. Background Art

[0002] The motor rotor is the rotating part inside the motor. The main purpose of grinding the outer diameter of the rotor is to remove burrs and defects on the rotor surface and ensure the smoothness and precision of the rotor surface. In addition, by accurately grinding the outer diameter of the rotor, the performance and stability of the motor can be better guaranteed. If the motor rotor is too thin or too thick, it may affect the stability and performance of the motor. Therefore, fine grinding of the rotor to maintain the appropriate size and good surface quality is an important task in the motor manufacturing process.

[0003] The outer diameter grinding of the rotor of the stepper motor needs to be carried out by a special grinding device, but the existing grinding device generally adopts manual loading and unloading, which has slow loading and unloading speed, low degree of automation, certain risks, low production efficiency and higher production cost. Utility Model Content

[0004] The problem to be solved by the utility model is to provide a rotor outer diameter grinding device for a stepper motor, which can automatically load and unload materials, improve production efficiency, and the specifications inside the material tray component are adjustable to adapt to the placement of shaft cores of different lengths.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model discloses a rotor outer diameter grinding device for a stepper motor, which is used for grinding a rotor assembly. The rotor assembly comprises a rotor body and an axis core. The rotor body is fixedly sleeved on the axis core, and comprises a chassis, a material tray assembly and a pick-and-place mechanism. Two material tray assemblies are arranged along the x-axis and are symmetrically distributed on inclined support tables on both sides of the chassis. A plurality of rotor assemblies to be ground that are evenly distributed in a lattice are placed on the top of the material tray assembly. The pick-and-place mechanism is arranged inside the chassis. External housings are also fixed on both sides of the chassis. The ends of the pick-and-place mechanism extend to the outer ends of the external housings.

[0007] The pick-and-place mechanism includes a track parallel to the x-axis, an electric slider, a cylinder and a clamp, wherein the cylinder is parallel to the z-axis; the electric slider is slidably arranged at the bottom of the track, cylinders are fixed at both ends of the bottom of the electric slider, and clamps are arranged at the ends of the piston rods of the cylinders.

[0008] The tray assembly includes a frame, a placement unit and a translation mechanism; a plurality of placement units are arranged inside the frame, the translation mechanism is fixed on the top of the diagonal support platform, and drives the frame to move along the y-axis through mechanical transmission.

[0009] Furthermore, the placement unit includes a first vertical plate and a second vertical plate; the first vertical plate and the second vertical plate are arranged parallel to the y-axis, and a semicircular groove is arranged on the top of each plate. The axis core is parallel to the x-axis, and both ends are respectively placed in the semicircular grooves of the first vertical plate and the second vertical plate, and the diameter of the semicircular groove is adapted to the diameter of the axis core.

[0010] Furthermore, a first guide rod is fixed between the left and right side surfaces inside the frame, and the first guide rod movably passes through the first vertical plate and the second vertical plate.

[0011] Furthermore, a first slot hole and a second slot hole are respectively provided on the front and rear side surfaces of the frame; a first fastener is provided at the end of the first vertical plate, and the first fastener passes through the first slot hole to lock the first vertical plate in the frame; a second fastener is provided at the end of the second vertical plate, and the second fastener passes through the second slot hole to lock the second vertical plate in the frame.

[0012] Furthermore, the translation mechanism includes a fixed seat, a second guide rod, a screw rod, a nut seat, a bearing seat and a motor, the second guide rod and the screw rod are parallel to the y-axis; two fixed seats are arranged parallel to the x-axis, respectively located below the front and rear side plates of the frame, and the fixed seat is fixedly connected to the diagonal support platform, and two symmetrically distributed second guide rods are fixed between the two fixed seats; the screw rod is located between the two second guide rods, one end of which is rotatably connected to the bearing seat, and the other end is fixedly connected to the output shaft of the motor, and the bearing seat and the motor are respectively fixed on their respective fixed seats; the nut seat is movably sleeved on the screw rod, and the top of the nut seat is fixedly connected to the bottom of the frame.

[0013] Furthermore, guide seats are fixed at both ends of the bottom of the frame, and the second guide rod movably passes through the guide seats.

[0014] The utility model has the following beneficial effects:

[0015] 1. The utility model provides a pick-and-place mechanism and two sets of material tray components, and can automatically load and unload materials in both directions, which can greatly improve the grinding efficiency.

[0016] 2. The utility model arranges the first slot, the second slot, the first fastener and the second fastener so that the distance between the first vertical plate and the second vertical plate can be adjusted, and the positions of the first vertical plate and the second vertical plate in the frame can be adjusted, which can adapt to the placement of shaft cores of different lengths and has better universality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the overall structure;

[0018] Figure 2 It is a schematic diagram of the pick-and-place mechanism structure;

[0019] Figure 3 It is a schematic diagram of the overall structure of the tray assembly;

[0020] Figure 4 It is a schematic diagram of the frame and placement unit structure;

[0021] Figure 5 It is a schematic diagram of the translation mechanism structure.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 1. Chassis; 2. Tray assembly; 3. Pick-up and placement mechanism; 4. Rotor assembly; 11. Slanted support platform; 12. Extension box; 21. Frame; 22. Placement unit; 23. Translation mechanism; 31. Track; 32. Electric slider; 33. Cylinder; 34. Clamp; 41. Rotor body; 42. Shaft core; 211. First guide rod; 212. First slot; 213. Second slot; 214. Guide seat; 221. First vertical plate; 222. Second vertical plate; 223. Semicircular groove; 224. First fastener; 225. Second fastener; 231. Fixed seat; 232. Second guide rod; 233. Screw rod; 234. Nut seat; 235. Bearing seat; 236. Motor. DETAILED DESCRIPTION

[0024] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention and the accompanying drawings of the specification.

[0025] See also Figures 1 to 3 As shown, the utility model is a rotor outer diameter grinding device for a stepper motor, which is used for grinding a rotor assembly 4, wherein the rotor assembly 4 includes a rotor body 41 and a shaft core 42, wherein the rotor body 41 is fixedly sleeved on the shaft core 42; the utility model includes a chassis 1, a material tray assembly 2 and a pick-and-place mechanism 3, wherein the material tray assembly 2 is provided with two along the x-axis, which are symmetrically distributed on the inclined support tables 11 on both sides of the chassis 1, and a plurality of rotor assemblies 4 to be ground which are evenly distributed in a lattice shape are placed on the top of the material tray assembly 2, and the pick-and-place mechanism 3 is arranged inside the chassis 1, and an extension box body 12 is also fixed on both sides of the chassis 1, and the end of the pick-and-place mechanism 3 extends to the outer end of the extension box body 12.

[0026] Among them Figure 2 As shown, the pick-and-place mechanism 3 includes a track 31 parallel to the x-axis, an electric slider 32, a cylinder 33 and a clamp 34, wherein the cylinder 33 is parallel to the z-axis; the electric slider 32 is slidably arranged at the bottom of the track 31, and the cylinder 33 is fixed at both ends of the bottom of the electric slider 32, and the clamp 34 is arranged at the end of the piston rod of the cylinder 33.

[0027] Among them Figure 3 As shown, the tray assembly 2 includes a frame 21, a placement unit 22 and a translation mechanism 23; a plurality of placement units 22 are arranged inside the frame 21, and the translation mechanism 23 is fixed on the top of the diagonal support platform 11 and drives the frame 21 to move by mechanical transmission.

[0028] When in use, a worker steam-stacks the rotor assembly 4 on the tray assembly 2, clamps the rotor assembly 4 through the clamp 34 of the pick-and-place mechanism 3, and then drives it into the chassis 1 through the electric slider 32, and places it at the polishing assembly for polishing. After polishing, the rotor assembly 4 is clamped by the clamp 34 again, and then the rotor assembly 4 on another clamp 34 is immediately placed at the polishing assembly for polishing. During the polishing process, the polished rotor assembly 4 is moved to the tray assembly 2 and placed in its original position, and then the new rotor assembly 4 to be polished is taken out; by setting the pick-and-place mechanism 3 and two groups of tray assemblies 2, bidirectional automatic loading and unloading can greatly improve the polishing efficiency.

[0029] Among them Figure 4 As shown, the placement unit 22 includes a first vertical plate 221 and a second vertical plate 222; the first vertical plate 221 and the second vertical plate 222 are arranged parallel to the y-axis, and a semicircular groove 223 is arranged on the top of each of them; the shaft core 42 is parallel to the x-axis, and its two ends are respectively placed in the semicircular grooves 223 of the first vertical plate 221 and the second vertical plate 222, and the diameter of the semicircular groove 223 is adapted to the diameter of the shaft core 42; a first guide rod 211 is fixed between the left and right sides of the interior of the frame 21, and the first guide rod 211 movably penetrates A first vertical plate 221 and a second vertical plate 222; a first slot hole 212 and a second slot hole 213 are respectively provided on the front and rear sides of the frame 21; a first fastener 224 is provided at the end of the first vertical plate 221, and the first fastener 224 passes through the first slot hole 212 to lock the first vertical plate 221 in the frame 21; a second fastener 225 is provided at the end of the second vertical plate 222, and the second fastener 225 passes through the second slot hole 213 to lock the second vertical plate 222 in the frame 21.

[0030] The arrangement of the first slot hole 212, the second slot hole 213, the first fastener 224 and the second fastener 225 allows the spacing between the first vertical plate 221 and the second vertical plate 222 to be adjustable, so that the positions of the first vertical plate 221 and the second vertical plate 222 in the frame 21 can be adjusted to adapt to the placement of shaft cores 42 of different lengths and have better universality; when adjusting, loosen the first fastener 224, and the first vertical plate 221 can move freely along the first guide rod 211 to the desired position, and then tighten the first fastener 224.

[0031] Among them Figure 5As shown, the translation mechanism 23 includes a fixed seat 231, a second guide rod 232, a screw rod 233, a nut seat 234, a bearing seat 235 and a motor 236, the second guide rod 232 and the screw rod 233 are parallel to the y-axis; two fixed seats 231 are arranged parallel to the x-axis, respectively located below the front and rear side plates of the frame 21, and the fixed seat 231 is fixedly connected to the diagonal support platform 11, and two symmetrically distributed second guide rods 232 are fixed between the two fixed seats 231; the screw rod 233 is located between the two second guide rods 232, one end of which is rotatably connected to the bearing seat 235, and the other end is fixedly connected to the output shaft of the motor 236, and the bearing seat 235 and the motor 236 are respectively fixed on their respective fixed seats 231; the nut seat 234 is movably sleeved on the screw rod 233, and the top of the nut seat 234 is fixedly connected to the bottom of the frame 21; guide seats 214 are also fixed at both ends of the bottom of the frame 21, and the second guide rod 232 movably passes through the guide seat 214.

[0032] The translation mechanism 23 and the electric slider 32 cooperate so that the pick-and-place mechanism 3 can take out the rotor assembly 4 on the placement unit 22 in sequence. When the translation mechanism 23 is used, the motor 236 is started, the motor 236 drives the screw rod 233 to rotate, the screw rod 233 drives the nut seat 234 to move, and the nut seat 234 drives the frame 21 to move along the second guide rod 232.

[0033] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, as well as any modification, equivalent replacement and improvement made, are within the protection scope of the present invention.

Claims

1. A rotor outer diameter grinding device for a stepper motor, used for grinding a rotor assembly (4), the rotor assembly (4) comprising a rotor body (41) and a shaft core (42); the rotor body (41) is fixedly sleeved on the shaft core (42); comprising a chassis (1), a material tray assembly (2) and a pick-and-place mechanism (3), characterized in that: Two material tray assemblies (2) are arranged along the x-axis and are symmetrically distributed on the inclined support platforms (11) on both sides of the chassis (1); a plurality of rotor assemblies (4) to be polished are placed on the top of the material tray assembly (2) and are evenly distributed in a lattice shape; the pick-up and placement mechanism (3) is arranged inside the chassis (1); and an epitaxial box body (12) is fixed on both sides of the chassis (1); and the end of the pick-up and placement mechanism (3) extends to the outer end of the epitaxial box body (12); The pick-and-place mechanism (3) comprises a track (31) parallel to the x-axis, an electric slider (32), a cylinder (33) and a clamp (34), wherein the cylinder (33) is parallel to the z-axis; The electric slider (32) is slidably arranged at the bottom of the track (31), the cylinder (33) is fixed to both ends of the bottom of the electric slider (32), and the clamp (34) is arranged at the end of the piston rod of the cylinder (33); The tray assembly (2) comprises a frame (21), a placement unit (22) and a translation mechanism (23); A plurality of groups of placement units (22) are arranged inside the frame (21); the translation mechanism (23) is fixed on the top of the diagonal support platform (11) and drives the frame (21) to move along the y-axis by mechanical transmission.

2. The rotor outer diameter grinding device of a stepper motor according to claim 1, characterized in that: The placement unit (22) comprises a first vertical plate (221) and a second vertical plate (222); The first vertical plate (221) and the second vertical plate (222) are arranged parallel to the y-axis, and a semicircular groove (223) is arranged on the top of each of them; the shaft core (42) is parallel to the x-axis, and its two ends are respectively placed in the semicircular grooves (223) of the first vertical plate (221) and the second vertical plate (222); the diameter of the semicircular groove (223) is adapted to the diameter of the shaft core (42).

3. The rotor outer diameter grinding device of a stepper motor according to claim 2, characterized in that: A first guide rod (211) is fixed between the left and right side surfaces inside the frame (21), and the first guide rod (211) movably penetrates the first vertical plate (221) and the second vertical plate (222).

4. The rotor outer diameter grinding device of a stepper motor according to claim 3, characterized in that: The frame body (21) is provided with a first slot hole (212) and a second slot hole (213) on both the front and rear side surfaces, respectively; A first fastener (224) is provided at the end of the first vertical plate (221), and the first fastener (224) passes through the first slot hole (212) to lock the first vertical plate (221) in the frame (21); A second fastener (225) is provided at the end of the second vertical plate (222), and the second fastener (225) passes through the second slot hole (213) to lock the second vertical plate (222) in the frame (21).

5. The rotor outer diameter grinding device of a stepper motor according to claim 1, characterized in that: The translation mechanism (23) comprises a fixed seat (231), a second guide rod (232), a screw rod (233), a nut seat (234), a bearing seat (235) and a motor (236); the second guide rod (232) and the screw rod (233) are parallel to the y-axis; Two fixing seats (231) are arranged parallel to the x-axis and are respectively located below the front and rear side plates of the frame (21), and the fixing seats (231) are fixedly connected to the diagonal support platform (11), and two symmetrically distributed second guide rods (232) are fixed between the two fixing seats (231); The screw rod (233) is located between the two second guide rods (232), one end of which is rotatably connected to the bearing seat (235), and the other end of which is fixedly connected to the output shaft of the motor (236), and the bearing seat (235) and the motor (236) are respectively fixed on their respective fixing seats (231); The nut seat (234) is movably sleeved on the screw rod (233), and the top of the nut seat (234) is fixedly connected to the bottom of the frame (21).

6. The rotor outer diameter grinding device of a stepper motor according to claim 5, characterized in that: Guide seats (214) are also fixed at both ends of the bottom of the frame (21), and the second guide rod (232) movably passes through the guide seat (214).

Images