Output shaft polishing device for stepping motor production

Abstract

The utility model relates to the technical field of motor production, in particular to an output shaft polishing device for stepping motor production, which is reasonable in structural design and mainly comprises a circulating conveyor belt, a clamping component and a polishing component. An output shaft of a stepping motor is clamped and locked through a clamping assembly, a stepped groove of the output shaft is ground through a grinding assembly, and grinding treatment specifically comprises the steps that a horizontal push rod is used for driving a grinding sleeve to horizontally move, so that the outer side of the stepped groove is sleeved with the grinding sleeve, and then a rotation driving mechanism is used for driving the grinding sleeve to rotate; and the clamping assembly and the grinding assembly are reset after grinding is finished, the stepping motor is moved out of the grinding station under the conveying effect of the circulating transmission belt, in this way, automatic continuous grinding operation can be achieved, and the grinding efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of motor production, in particular to an output shaft grinding device for stepper motor production. Background Art

[0002] The output shaft grinding device plays a vital role in the production of stepper motors. As a motor that converts electrical pulse signals into angular displacement or linear displacement, stepper motors are widely used in occasions that require precise position control and speed control, such as 3D printing, CNC machine tools, robots, etc. Its manufacturing process needs to ensure the accuracy and surface quality of each component to meet its high performance and reliability requirements. As an important component of the stepper motor, the output shaft is directly related to the torque and speed output of the motor. In the manufacturing process, grinding the output shaft is a key step to ensure its surface is smooth and flawless. This can not only improve the working efficiency and performance of the output shaft, but also extend its service life. The output shaft grinding device can not only remove defects such as burrs and scratches that may be generated during the manufacturing process of the output shaft, but also make the output shaft surface smoother, thereby reducing friction resistance and improving transmission efficiency.

[0003] The output shaft grinding device used in the production of traditional stepper motors has shortcomings when in use. It is not suitable for grinding output shafts with step structures. It needs to be ground step by step. During the grinding process, the direction needs to be constantly changed for grinding, which makes the operation cumbersome. Utility Model Content

[0004] The purpose of the utility model is to overcome the above problems existing in the traditional technology and provide an output shaft grinding device for stepper motor production.

[0005] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0006] An output shaft grinding device for stepper motor production, comprising:

[0007] A circulating conveyor belt, the circulating conveyor belt is used to convey a stepper motor, the stepper motor is provided with an output shaft protruding outward relative to the circulating conveyor belt, and the outer end of the output shaft is provided with a step groove;

[0008] A clamping assembly, the clamping assembly is composed of two clamping units distributed up and down, and the clamping assembly is used to clamp and lock the output shaft during the grinding process;

[0009] A grinding assembly, which is used to grind the step groove of the output shaft. The grinding assembly includes a groove seat, a cover plate, a grinding motor, a driving gear, a driven roller, a hexagonal connecting rod, a grinding sleeve, a rotating joint and a horizontal push rod. The groove seat is located on a side plate close to the clamping assembly and is installed with a cover plate by bolts. The side plate and the cover plate jointly restrict the mutually meshing driving gear and the driven roller. A grinding motor for driving the driving gear to rotate is fixed to the inner side of the web of the groove seat. A hexagonal connecting rod is passed through the driven roller. A grinding sleeve that can be sleeved on the outside of the step groove is installed at one end of the hexagonal connecting rod. The other end of the hexagonal connecting rod is connected to the output end of the horizontal push rod via a rotating joint. The horizontal push rod is installed on the other side plate of the groove seat.

[0010] Furthermore, in the output shaft grinding device for stepper motor production, both sides of the circulating conveyor belt are provided with ribs matching the length of the stepper motor cylinder.

[0011] Furthermore, in the above-mentioned output shaft grinding device for stepper motor production, the clamping unit is composed of a push rod base plate, a clamping push rod and an arc-shaped clamping plate, the cylinder body of the clamping push rod is installed on the push rod base plate, and the movable end of the clamping push rod is installed with an arc-shaped clamping plate.

[0012] Furthermore, in the output shaft grinding device for stepper motor production, the curvature of the arc-shaped clamping plate matches the shape of the outer wall of the output shaft, and the inner side of the arc-shaped clamping plate is provided with an anti-slip rough surface.

[0013] Furthermore, in the output shaft grinding device for stepper motor production, the driven roller is composed of an inner ring portion and an outer ring portion, the inner ring portion is provided with a hexagonal through hole that cooperates with the hexagonal connecting rod, and the outer periphery of the outer ring portion is evenly distributed with tooth grooves that mesh with the driving gear; the thickness of the inner ring portion is greater than that of the outer ring portion, and both ends of the inner ring portion protrude outward relative to the outer ring portion.

[0014] Furthermore, in the output shaft grinding device for stepper motor production, a first movable cavity for limiting the activity of the driving gear and a second movable cavity for limiting the activity of the driven roller are formed between the side plate and the cover plate of the groove seat.

[0015] The beneficial effects of the utility model are:

[0016] The utility model has a reasonable structural design, which is mainly composed of a circulating conveyor belt, a clamping assembly and a grinding assembly. The circulating conveyor belt is used to sequentially convey the stepper motor to the grinding station, the clamping assembly is used to clamp and lock the output shaft of the stepper motor, and the grinding assembly is used to grind the step groove of the output shaft. The grinding process is specifically to first use a horizontal push rod to drive the grinding sleeve to move horizontally so that the grinding sleeve is sleeved to the outside of the step groove, and then use a rotary drive mechanism to drive the grinding sleeve to rotate to achieve the grinding of the step groove. After the grinding is completed, the clamping assembly and the grinding assembly are reset, and the stepper motor is moved out of the grinding station under the transmission action of the circulating transmission belt. In this way, automated continuous grinding operations can be achieved with high grinding efficiency.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the above advantages at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the utility model after omitting the circulating conveyor belt;

[0021] Figure 3 It is a schematic diagram of the grinding principle of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the clamping assembly in the utility model;

[0023] Figure 5 It is a structural schematic diagram of the grinding component in the utility model;

[0024] Figure 6 It is a schematic diagram of the composition of the rotary drive mechanism in the utility model;

[0025] Figure 7 It is a structural schematic diagram of the hexagonal connecting rod and the grinding sleeve in the utility model;

[0026] Figure 8 It is a structural schematic diagram of the slot-type seat and the cover plate in the utility model;

[0027] In the accompanying drawings, the components represented by the reference numerals are described as follows:

[0028] 1-circular conveyor belt, 2-clamping assembly, 201-push rod base plate, 202-clamping push rod, 203-arc clamping plate, 3-grinding assembly, 301-groove seat, 302-cover plate, 303-grinding motor, 304-driving gear, 305-driven roller, 305a-inner ring, 305b-outer ring, 305c-hexagonal perforation, 305d-tooth groove, 306-hexagonal connecting rod, 307-grinding sleeve, 308-rotating joint, 309-horizontal push rod, 4-stepping motor, 5-output shaft, 6-step groove. 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 of 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] like Figure 1-Figure 8 As shown, this embodiment is an output shaft grinding device for stepper motor production, including a circulating conveyor belt 1, a clamping component 2 and a grinding component 3.

[0031] In this embodiment, the endless conveyor belt 1 is used to convey the stepper motor 4, which is provided with an output shaft 5 protruding outward relative to the endless conveyor belt 1, and a step groove 6 is provided at the outer end of the output shaft 5. Both sides of the endless conveyor belt 1 are provided with ribs matching the length of the cylinder of the stepper motor 4.

[0032] In this embodiment, the clamping assembly 2 is composed of two clamping units distributed up and down, and the clamping assembly 2 is used to clamp and lock the output shaft during the grinding process. The clamping unit is composed of a push rod base plate 201, a clamping push rod 202 and an arc-shaped clamping plate 203. The cylinder body of the clamping push rod 202 is installed on the push rod base plate 201, and the movable end of the clamping push rod 202 is installed with an arc-shaped clamping plate 203. The curvature of the arc-shaped clamping plate 203 matches the shape of the outer wall of the output shaft 5, and the inner side of the arc-shaped clamping plate 203 is provided with an anti-slip rough surface.

[0033] In this embodiment, the grinding assembly 3 is used to grind the step groove 6 of the output shaft 5, and the grinding assembly 3 includes a groove seat 301, a cover plate 302, a grinding motor 303, a driving gear 304, a driven roller 305, a hexagonal connecting rod 306, a grinding sleeve 307, a rotary joint 308 and a horizontal push rod 309. The groove seat 301 is located on a side plate close to the clamping assembly 2 and is installed with a cover plate 302 by bolts. The side plate and the cover plate 302 are jointly restricted to have mutually meshing driving gears 304 and driven rollers 305. The inner side of the web of the groove seat 301 is fixed with a grinding motor 303 for driving the driving gear 304 to rotate. A hexagonal connecting rod 306 is passed through the driven roller 305, and a grinding sleeve 307 that can be sleeved on the outside of the step groove 6 is installed at one end of the hexagonal connecting rod 306. The other end of the hexagonal connecting rod 306 is connected to the output end of the horizontal push rod 309 via a rotating joint 308. The horizontal push rod 309 is installed on the other side plate of the groove seat 301.

[0034] In this embodiment, the grinding motor 303, the driving gear 304, and the driven roller 305 together constitute a rotation driving mechanism for driving the hexagonal connecting rod 306 and the grinding sleeve 307 to rotate.

[0035] In this embodiment, the driven roller 305 is composed of an inner ring portion 305a and an outer ring portion 305b, the inner ring portion 305s is provided with a hexagonal through hole 305c that cooperates with the hexagonal connecting rod 306, and the outer periphery of the outer ring portion 305b is evenly distributed with tooth grooves 305d that mesh with the driving gear 304; the thickness of the inner ring portion 305a is greater than the thickness of the outer ring portion 305b, and the two ends of the inner ring portion 305a protrude outward relative to the outer ring portion 305b.

[0036] In this embodiment, a first movable cavity for limiting the activity of the active gear 304 and a second movable cavity for limiting the activity of the driven roller 305 are formed between the side plate of the groove seat 301 and the cover plate 302 .

[0037] In this embodiment, a step grinding profile matching the step groove is provided inside the grinding sleeve 307, and a plurality of radial chip removal grooves for facilitating chip removal are opened in the circumferential direction of the grinding sleeve 307.

[0038] A specific application of this embodiment is: this device is mainly composed of a circulating conveyor belt 1, a clamping assembly 2 and a grinding assembly 3. The circulating conveyor belt 1 is used to sequentially convey the stepper motor 4 to the grinding station, the clamping assembly 2 is used to clamp and lock the output shaft 5 of the stepper motor 4, and the grinding assembly 3 is used to grind the step groove 6 of the output shaft 5. The grinding process is specifically to first use the horizontal push rod 309 to drive the grinding sleeve 307 to move horizontally, so that the grinding sleeve 307 is sleeved to the outside of the step groove 6, and then use the rotary drive mechanism to drive the grinding sleeve 307 to rotate to achieve the grinding process of the step groove 6. After the grinding is completed, the clamping assembly 2 and the grinding assembly 3 are reset, and the stepper motor 1 is moved out of the grinding station under the transmission action of the circulating transmission belt 1. In this way, automated continuous grinding operations can be achieved with high grinding efficiency.

[0039] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is only limited by the claims and their full scope and equivalents.

Claims

1. An output shaft grinding device for stepper motor production, characterized in that: include: A circulating conveyor belt, the circulating conveyor belt is used to convey a stepper motor, the stepper motor is provided with an output shaft protruding outward relative to the circulating conveyor belt, and the outer end of the output shaft is provided with a step groove; A clamping assembly, the clamping assembly is composed of two clamping units distributed up and down, and the clamping assembly is used to clamp and lock the output shaft during the grinding process; A grinding assembly, which is used to grind the step groove of the output shaft. The grinding assembly includes a groove seat, a cover plate, a grinding motor, a driving gear, a driven roller, a hexagonal connecting rod, a grinding sleeve, a rotating joint and a horizontal push rod. The groove seat is located on a side plate close to the clamping assembly and is installed with a cover plate by bolts. The side plate and the cover plate jointly limit the movement of the driving gear and the driven roller that are meshed with each other. A grinding motor for driving the driving gear to rotate is fixed to the inner side of the web of the groove seat. A hexagonal connecting rod is passed through the driven roller. A grinding sleeve that can be sleeved on the outside of the step groove is installed at one end of the hexagonal connecting rod. The other end of the hexagonal connecting rod is connected to the output end of the horizontal push rod via a rotating joint. The horizontal push rod is installed on the other side plate of the groove seat.

2. The output shaft grinding device for stepper motor production according to claim 1, characterized in that: The two sides of the circulating conveyor belt are provided with ribs matching the length of the cylinder body of the stepping motor.

3. The output shaft grinding device for stepper motor production according to claim 2, characterized in that: The clamping unit is composed of a push rod base plate, a clamping push rod and an arc-shaped clamping plate. The cylinder body of the clamping push rod is installed on the push rod base plate, and the movable end of the clamping push rod is installed with an arc-shaped clamping plate.

4. The output shaft grinding device for stepper motor production according to claim 3, characterized in that: The curvature of the arc-shaped clamping plate matches the shape of the outer wall of the output shaft, and the inner side of the arc-shaped clamping plate is provided with an anti-slip rough surface.

5. The output shaft grinding device for stepper motor production according to claim 4, characterized in that: The driven roller is composed of an inner ring portion and an outer ring portion. The inner ring portion is provided with a hexagonal through hole that cooperates with the hexagonal connecting rod, and the outer circumference of the outer ring portion is evenly distributed with tooth grooves that mesh with the driving gear; the thickness of the inner ring portion is greater than that of the outer ring portion, and both ends of the inner ring portion protrude outward relative to the outer ring portion.

6. The output shaft grinding device for stepper motor production according to claim 5, characterized in that: A first movable cavity for limiting the movement of the driving gear and a second movable cavity for limiting the movement of the driven roller are formed between the side plate and the cover plate of the groove seat.

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