CN106899191B

CN106899191B - Adjusting mechanism and adjusting method for adjusting rotation of motor output shaft

Info

Publication number: CN106899191B
Application number: CN201710226142.3A
Authority: CN
Inventors: 李渊; 杨晓宏
Original assignee: Guizhou University
Current assignee: Guizhou University
Priority date: 2017-04-08
Filing date: 2017-04-08
Publication date: 2023-07-07
Anticipated expiration: 2037-04-08
Also published as: CN106899191A

Abstract

The invention discloses an adjusting mechanism and an adjusting method for adjusting the rotation of an output shaft of a motor, wherein the adjusting mechanism comprises the output shaft of the motor and a screw micrometer, the screw micrometer comprises a knob, a scale, a micrometer bearing, a movable shaft, balls and a fixed cover, the knob is sleeved outside the scale through threads and can rotate around the scale, the scale is fixed on the fixed cover, the fixed cover is rigidly connected to a motor fixed plate through a bracket, the movable shaft is rigidly connected to an inner cavity of the knob, the micrometer bearing is arranged between the movable shaft and the scale, an outer groove for placing the balls is arranged along the axial direction of the movable shaft, an inner groove for placing the balls is arranged along the axial direction of the inner cavity wall surface of the output shaft of the motor, and the movable shaft is connected to the inner cavity of the output shaft of the motor through the balls; the invention can solve the technical problems that the existing motor is low in adjusting precision and cannot be manually adjusted to obtain the micro-nano nozzle with accurate size, and has the advantages of convenient operation, low cost, simple and practical structure and the like.

Description

Adjusting mechanism and adjusting method for adjusting rotation of motor output shaft

Technical Field

The invention relates to an adjusting mechanism and an adjusting method for adjusting rotation of an output shaft of a motor, and belongs to the technical field of motor output shaft adjustment.

Background

The 3D printing technology has spawned a higher demand for nozzles, which is a great clamp for the printing category of printers. The 3D printer with finer nozzles can certainly play a larger role, such as the fields of MEMS manufacturing, genetic engineering, tissue culture, chip printing, display screen printing and the like. Therefore, the development of finer micro-nano nozzles is helpful for expanding the application field of the 3D printer nozzle, can promote the development of the manufacturing industry in China, and caters for 'intelligent manufacturing 2025 in China'.

At present, a common micro-nano nozzle manufacturing device comprises a horizontal type drawing needle instrument, a vertical type drawing needle instrument and a forging needle instrument, wherein the drawing needle instrument is horizontal and vertical, and a heated glass pipeline is pulled away from the middle by means of aerodynamic force, electromagnetic force, gravity and the like; the forging process of the forging needle instrument is to heat a glass pipeline or a drawn micro-nozzle outlet, the temperature is increased to enable the glass to melt, the viscosity is reduced, the surface tension is acted to enable the port to deform and shrink, and the port is formed into a required shape. When the device is applied to a micro-nano nozzle of a printer, the device has the effects of quickly shrinking liquid and obtaining tiny liquid drops, in particular to a device for testing the feasibility of a solution, and has important application value for checking whether the solution is qualified or not; when the method is applied to genetic engineering and chip sample application, micro-nano nozzles of micrometer or even nanometer level are required for operation; when the micro-nano nozzle is used as a cell micro-clamp, a specially-forged port micro-nano nozzle is required, and the forging operation is carried out on the drawn micro-nano nozzle, so that the residual stress of the micro-nano nozzle in the drawing process can be effectively improved, and the performance is improved.

At present, in the manufacturing process of the micro-nano nozzle, a stepping motor is often adopted to control the drawing stroke of the micro-nano nozzle, and the problems that the precision is not high, and the stroke is inconvenient to manually adjust, namely the rotation quantity of an output shaft of the motor exist.

Disclosure of Invention

The invention aims to solve the technical problems that: an adjusting mechanism and an adjusting method for adjusting the rotation of an output shaft of a motor are provided, so that the technical problems that the existing motor is low in adjusting precision and a micro-nano nozzle with accurate size cannot be obtained through manual adjustment are solved.

The technical scheme of the invention is as follows: the regulating mechanism for regulating the rotation of the motor output shaft comprises the motor output shaft, a motor fixing plate, a screw micrometer, a micrometer and a motor, wherein the screw micrometer comprises a knob, a scale, a micrometer bearing, a movable shaft, balls and a fixing cover, the knob is sleeved outside the scale through threads and can rotate around the scale, the scale is fixed on the fixing cover, the fixing cover is rigidly connected to the motor fixing plate through a bracket, a movable shaft is rigidly connected to the knob inner cavity, the micrometer bearing is arranged between the movable shaft and the scale, an outer groove for placing the balls is arranged along the axial direction of the movable shaft, an inner groove for placing the balls is arranged along the axial direction of the wall surface of the inner cavity of the motor output shaft, and the movable shaft is connected to the inner cavity of the motor output shaft through the balls; when the motor stops running, the rotary knob can drive the movable shaft to move up and down and rotate, and the movable shaft can drive the output shaft of the motor to rotate through the balls; when the motor runs, the output shaft of the motor rotates to drive the movable shaft to rotate and move up and down, and the stroke of the movable shaft can be displayed through the scale.

The number of the external grooves on the movable shaft is 4, and correspondingly, the number of the internal grooves on the wall surface of the inner cavity of the output shaft of the motor is also 4.

The motor is a stepping motor.

Compared with the prior art, the invention has the beneficial effects that: through design and motor output shaft connection spiral micrometer structure, can solve present motor regulation precision not high to and can't be manual adjust in order to obtain the technical problem of accurate size's little nozzle of receiving, have convenient operation, low cost, simple structure practicality advantage.

When the invention is applied to controlling the drawing and forging stroke of the micro-nano nozzle, the drawing length can be accurately adjusted; the stroke amount of the drawing and forging can be controlled automatically or manually.

Drawings

FIG. 1 is a schematic diagram of a connection structure of a screw micrometer and a motor according to the present invention;

FIG. 2 is a schematic diagram of a screw micrometer according to the present invention;

FIG. 3 is a schematic view showing a connection structure between a moving shaft of a micrometer screw and a ball in the present invention;

FIG. 4 is a top view of FIG. 3;

FIG. 5 is a schematic structural view of a connecting part between an inner cavity at the upper end of an output shaft of a motor and a movable shaft in the invention;

reference numerals illustrate: the device comprises a 1-motor, a 2-motor fixing plate, a 3-output shaft, a 4-knob, a 5-scale, a 6-fixing cover, a 7-micrometer bearing, 8-balls, a 9-movable shaft, a 10-outer groove and an 11-inner groove.

Detailed Description

Referring to fig. 1 to 5, the invention relates to an adjusting mechanism for adjusting the rotation of an output shaft 3 of a motor, which comprises the output shaft 3 of the motor, a motor fixing 2, a screw micrometer, and a knob 4, a scale 5, a micrometer bearing 7, a moving shaft 9, balls 8 and a fixing cover 6, wherein the knob 4 is sleeved outside the scale 5 through threads and can rotate around the scale 5, the scale 5 is fixed on the fixing cover 6, the fixing cover 6 is rigidly connected to a motor fixing plate 2 through a bracket, the moving shaft 9 is rigidly connected to the inner cavity of the knob 4, the micrometer bearing 7 is arranged between the moving shaft 9 and the scale 5, an outer groove 10 for placing the balls 8 is arranged along the axial direction of the moving shaft 9, an inner groove 11 for placing the balls 8 is arranged on the wall surface of the inner cavity of the output shaft 3 of the motor along the axial direction, and the moving shaft 9 is connected to the inner cavity of the output shaft 3 of the motor through the balls 8.

Preferably, the number of the external grooves 10 on the moving shaft 9 is 4, and correspondingly, the number of the internal grooves 11 on the inner cavity wall surface of the output shaft 3 of the motor is also 4.

The working principle of the invention is as follows: when the motor stops running, the rotary knob 4 can drive the movable shaft 9 to move up and down and rotate, and the movable shaft 9 can drive the output shaft 3 of the motor to rotate through the ball 8; when the motor runs, the output shaft 3 of the motor rotates to drive the moving shaft 9 to rotate and move up and down, and the stroke of the moving shaft can be displayed through the scale 5. Therefore, the invention can not only use the motor to realize the rotation of the output shaft 3, but also realize the adjustment of the output shaft 3 by the screw micrometer.

The motor in the invention is a stepping motor.

The foregoing is a further detailed description of the invention in connection with the preferred embodiments, and it is not intended that the invention be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the invention, and these should be considered to be within the scope of the invention.

Claims

1. An adjusting mechanism for adjusting rotation of an output shaft of a motor, comprising an output shaft (3) of the motor (1) and a motor fixing plate (2), and is characterized in that: the screw micrometer comprises a knob (4), a scale (5), a micrometer bearing (7), a movable shaft (9), balls (8) and a fixed cover (6), wherein the knob (4) is sleeved outside the scale (5) through threads and can rotate around the scale (5), the scale (5) is fixed on the fixed cover (6), the fixed cover (6) is rigidly connected to a motor fixed plate (2) through a bracket, the movable shaft (9) is rigidly connected to an inner cavity of the knob (4), the micrometer bearing (7) is arranged between the movable shaft (9) and the scale (5), an outer groove (10) for placing the balls (8) is formed in the axial direction of the movable shaft (9), an inner groove (11) for placing the balls (8) is formed in the inner cavity wall surface of an output shaft (3) of the motor (1) along the axial direction of the motor, and the movable shaft (9) is connected to the inner cavity of the output shaft (3) of the motor (1) through the balls (8); when the motor (1) stops running, the rotary knob (4) can drive the movable shaft (9) to move up and down and rotate, and the movable shaft (9) can drive the output shaft (3) of the motor (1) to rotate through the balls (8); when the motor (1) runs, the output shaft (3) of the motor (1) rotates to drive the moving shaft (9) to rotate and move up and down, and the stroke of the moving shaft can be displayed through the scale (5); the number of the external grooves (10) on the movable shaft (9) is 4, and correspondingly, the number of the internal grooves (11) on the inner cavity wall surface of the output shaft (3) of the motor is also 4; the motor (1) is a stepping motor.