CN112846981A - Spring grinding mechanism - Google Patents
Spring grinding mechanism Download PDFInfo
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- CN112846981A CN112846981A CN202110343947.2A CN202110343947A CN112846981A CN 112846981 A CN112846981 A CN 112846981A CN 202110343947 A CN202110343947 A CN 202110343947A CN 112846981 A CN112846981 A CN 112846981A
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- grinding
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- grinding wheel
- tray
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- 230000007246 mechanism Effects 0.000 title claims abstract description 48
- 239000000463 material Substances 0.000 claims abstract description 56
- 230000005540 biological transmission Effects 0.000 claims abstract description 28
- 239000000428 dust Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000005520 cutting process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 239000002245 particle Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000000110 cooling liquid Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/10—Single-purpose machines or devices
- B24B7/16—Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings
- B24B7/17—Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings for simultaneously grinding opposite and parallel end faces, e.g. double disc grinders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/02—Frames; Beds; Carriages
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
- B24B41/067—Work supports, e.g. adjustable steadies radially supporting workpieces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention discloses a spring grinding mechanism, which comprises a material tray assembly and a grinding wheel assembly; wherein: the material tray assembly comprises a material tray frame, a circular material tray and a material tray transmission mechanism, wherein the circular material tray is arranged in the material tray frame in a transmission manner, and the material tray transmission mechanism is used for driving the circular material tray to rotate; a circle of spring sleeves which are communicated up and down are arranged on the circular material tray around the circle center of the circular material tray; the grinding wheel assembly comprises two inner grinding wheels and two outer grinding wheels which are respectively arranged on the upper side and the lower side of the circular material tray; the end surface of one side of the spring, which is close to the circle center of the circular material tray, is contacted with the inner grinding wheel, and the end surface of one side of the spring, which is far away from the circle center of the circular material tray, is contacted with the outer grinding wheel; the rotation directions of the inner grinding wheel and the outer grinding wheel are opposite. The spring grinding mechanism provided by the invention can grind two end faces of the spring at the same time, and improves the grinding precision, reduces the plane cutting times of the grinding wheel, improves the production efficiency and reduces the production cost through the rotation and revolution of the spring.
Description
Technical Field
The invention relates to the technical field of spring cutting machine tools, in particular to a spring grinding mechanism.
Background
The traditional large-wire-diameter spring grinding equipment generally comprises a guide rail type spring grinding machine and a pendulum type spring grinding machine, wherein the guide rail type spring grinding machine and the pendulum type spring grinding machine both adopt a grinding wheel, a grinding wheel spindle is horizontally arranged, and the basic principle schematic diagrams of the guide rail type spring grinding machine and the pendulum type spring grinding machine are shown in figures 1 and 2.
Referring to fig. 1, the guide rail type spring grinding machine works according to the following principle: the spring is placed on the V-shaped groove of the V-shaped block, and the spring is clamped by a mechanical device so as to be fixed in the V-shaped groove. When grinding is needed, the V-shaped block moves linearly left and right under the drive of the mechanical mechanism, namely the spring moves linearly back and forth between A, B points, meanwhile, the plane of the rotary grinding wheel is driven by the mechanical mechanism to feed to the grinding end face of the spring slowly, and cooling liquid is needed to be added to the grinding position for cooling. In the process, the end face of the spring is ground, after the size of the grinding spring meets the set requirement, the grinding wheel automatically returns to the starting position, meanwhile, the spring stops moving linearly left and right, the mechanical device is loosened by manually operating the switch and is manually taken out, and the working process of grinding the end face of the spring is completed. If the other end face of the spring needs to be ground, the process is repeated.
Referring to fig. 2, the pendulum type spring grinding machine is an improvement on the guide rail type spring grinding machine, and mainly changes the original linear guide rail pair mechanism into a crank rocker mechanism, namely, the spring reciprocates linearly between A, B points and changes into reciprocating circular motion. The grinding device mainly solves the problems that the flatness of a ground spring and the perpendicularity of an end face to an axis are difficult to guarantee due to the fact that a working guide rail is easy to wear and cannot be compensated due to the fact that the working environment of the ground spring is severe, and the grinding working principle is not substantially changed.
It is worth mentioning that the springs do not rotate when the two large-wire-diameter spring grinding machines grind. Therefore, there are the following disadvantages:
firstly, the grinding precision is low: (1) the flatness precision of the grinding spring end face is low: because the design concept of the spring grinding machine is too ideal, the grinding flatness precision is completely realized by the grinding flatness precision of the grinding wheel. In the grinding process of a grinding plane of a grinding wheel, the grinding linear speed and the grinding time of each abrasive particle are not different and greatly different, such as: the grinding linear speed of the abrasive particles close to the inner circle and the outer circle of the grinding wheel is greatly different, the abrasive particles close to the inner circle of the grinding wheel only move to the middle of A, B points to participate in grinding; abrasive particles close to the excircle of the grinding wheel only move to A, B two points to participate in grinding; the abrasive particles near the middle diameter of the grinding wheel plane and the spring take part in grinding in the whole motion process of A, B points. Therefore, the abrasion of the grinding plane of the grinding wheel is not uniform, namely the stability time of the grinding flatness precision of the grinding wheel is short, and the grinding wheel can only adapt to a spring with low grinding precision. (2) The verticality precision of the grinding spring is low: the spring grinding machine is designed in such a way that after the spring is arranged on the V-shaped block, the grinding verticality precision can be ensured as long as the central line of the spring is perpendicular to the grinding surface of the grinding wheel. That is to say, the accuracy instability of the planeness of the grinding surface of the grinding wheel is not considered, and the verticality accuracy of the grinding spring is influenced. (3) The parallelism precision of two end surfaces of the grinding spring is low: because the design idea of the spring grinding machine is as follows: the two end faces of the spring are not ground at one time, the large-wire-diameter spring is basically formed by hot rolling, and the outer diameter of a spring rolling core rod needs to be slightly tapered, namely the outer diameter of the rolled spring is slightly tapered. And the spring is subjected to oil quenching before being ground, and part of the spring is bent to some extent. In short, the outer diameter of the spring is less consistent. The two end faces of the spring are respectively ground by using different outer diameter parts of the spring as references, and obviously, the parallelism precision of the two end faces of the spring is low. (4) The grinding precision is low under the spring deformation state: because the spring is a flexible member, i.e. the spring is to be deformed under the clamping of the mechanical device, i.e. the spring is ground in a deformed state, after grinding, the mechanical device is released and the spring deformation is restored. The grinding spring accuracy is low.
Secondly, production efficiency is low, and intensity of labour is big: the spring grinding machine not only needs to clamp the spring by a worker each time, but also can grind one end face of one or two springs once, obviously, the grinding production efficiency is low, and the labor intensity is high.
Thirdly, the ground surface is easy to be burnt and has large energy consumption: the large-wire-diameter spring grinding machine is mainly characterized by large grinding area, large generated heat, poor heat dissipation and easy scorching of the ground surface. The spring grinding machine is not burnt in order to grind the surface, and a large amount of cooling liquid is added to cool the grinding part, so that a large amount of energy is wasted.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a spring grinding mechanism for realizing intelligent high-precision fast grinding of a large-wire-diameter spring.
In order to achieve the above purpose, the invention provides the following technical scheme:
a spring grinding mechanism comprises a material tray assembly and a grinding wheel assembly; wherein:
the material tray assembly comprises a material tray frame, a circular material tray and a material tray transmission mechanism, wherein the circular material tray is arranged in the material tray frame in a transmission manner, and the material tray transmission mechanism is used for driving the circular material tray to rotate; a circle of a plurality of vertically through spring sleeves are arranged on the circular material tray around the circle center of the circular material tray, and the spring sleeves are used for placing springs;
the grinding wheel assembly comprises two inner grinding wheels and two outer grinding wheels which are respectively arranged on the upper side and the lower side of the circular material tray, and the inner grinding wheels are concentrically arranged on the inner ring of the outer grinding wheels; the end surface of one side of the spring, which is close to the circle center of the circular material tray, is contacted with the inner grinding wheel, and the end surface of one side of the spring, which is far away from the circle center of the circular material tray, is contacted with the outer grinding wheel; the rotation directions of the inner grinding wheel and the outer grinding wheel are opposite.
Preferably, the axes of the inner grinding wheel and the outer grinding wheel deviate from the axis of the circular tray by a certain distance in the horizontal direction.
Preferably, the radius of an outer ring of the spring is defined as R, and the radius of an inner ring of the spring is defined as R;
the outer diameter of the inner grinding wheel is equivalent to the distance from the circle center of the spring to the circle center of the circular material tray; the width of the inner grinding wheel and the width of the outer grinding wheel are both R + R, and the distance of the axes of the inner grinding wheel and the outer grinding wheel deviating from the axis of the circular material tray in the horizontal direction is R.
Preferably, a tray seat is fixedly arranged on the outer ring of the circular tray, a plurality of bearings are arranged on the tray seat along the circumferential outer side of the tray seat, and the outer ring of each bearing is abutted against the side face of the tray seat.
Preferably, a square hole is formed in the position, close to the edge, of the tray frame, the bearing is accommodated in the square hole, a vertical bearing pin is fixedly arranged in the square hole, and an inner ring of the bearing is fixed on the bearing pin.
Preferably, a round cover is fixedly arranged at the top of the tray seat, and the outer diameter of the round cover is equivalent to the circular part of the tray frame.
Preferably, a tray transmission mechanism mounting plate is integrally arranged on one side of the tray frame, and the tray transmission mechanism comprises a support and a belt pulley; the charging tray transmission mechanism mounting plate is provided with a support mounting hole, the support is mounted at the support mounting hole, and the belt pulley is arranged on the support; the material tray seat and the belt pulley are respectively provided with a triangular belt groove, and the belt pulley and the material tray seat are driven by a triangular belt.
Preferably, the support mounting hole is a kidney-shaped hole.
Preferably, the pulley is powered for rotation.
Preferably, the top of the tray transmission mechanism mounting plate is provided with a dust cover.
Compared with the prior art, the invention has the advantages that:
1. the spring grinding mechanism provided by the invention can grind the two end faces of the spring at the same time, and the rotation directions of the inner grinding wheel and the outer grinding wheel are opposite in the grinding process, so that the rotation of the spring is realized, the grinding verticality precision is improved, the position of a grinding heat source on the end face of the spring is continuously changed, the temperature of a grinding face is reduced, the grinding feeding amount can be increased, and the production efficiency is improved.
2. The spring revolution grinding machine has the advantages that the spring rotates and simultaneously drives the material tray to rotate through the material tray transmission mechanism to realize the revolution of the spring, each point on the grinding wheel can grind the end surface of each spring when the spring is ground, so that the grinding wheel is uniformly worn, the flatness precision of the plane of the grinding wheel is kept, the grinding precision is improved, meanwhile, the grinding wheel plane trimming frequency is reduced, the production cost is reduced, and the labor intensity of an operator is reduced.
3. The rotation and revolution motion modes of the spring are combined with the deviation of the axes of the inner grinding wheel and the outer grinding wheel and the axis of the circular material tray, so that each point on the grinding wheel can grind each point on the end face of each spring, the automatic plane flattening technology of the grinding wheel is realized, the flatness precision of the grinding wheel can be kept for a long time, and the grinding high precision and the grinding stability are kept for a long time.
4. The invention has simple structure and low manufacturing cost and is beneficial to popularization and use.
Drawings
Fig. 1 is a schematic diagram of a guide rail type spring grinding machine in the background art of the invention.
Fig. 2 is a schematic diagram of the principle of a pendulum spring grinding machine in the background of the invention.
Fig. 3 is a schematic view of the overall structure of the present invention.
Fig. 4 is an enlarged schematic view of a in fig. 3 according to the present invention.
Fig. 5 is an enlarged schematic view of B of fig. 3 according to the present invention.
FIG. 6 is a schematic view of the offset distance between the grinding wheel and the tray in the present invention.
Fig. 7 is a schematic top view of a spring according to the present invention.
Fig. 8 is a schematic view of the structure of the tray assembly of the present invention.
In the figure: 1. a chassis; 2. an inner grinding wheel; 3. an outer grinding wheel; 4. a spring; 5. a material tray frame; 6. a charging tray seat; 7. a circular tray; 8. a spring housing; 9. a bearing pin; 10. a bearing; 11. a flat washer; 12. a dome; 13. a tray transmission mechanism mounting plate; 14. a support mounting hole; 15. a support; 16. a belt pulley; 17. a V-belt; 18. and a dust cover.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further specifically described below by way of embodiments in combination with the accompanying drawings.
Example (b): a spring grinding mechanism is shown in figures 3-8 and comprises a case 1, and a tray assembly and a grinding wheel assembly which are arranged in the case 1. Wherein:
the charging tray subassembly includes charging tray frame 5, charging tray seat 6, circular charging tray 7 and charging tray drive mechanism, and circular charging tray 7 is equipped with round spring housing 8 with one heart, and the circle that all spring housing 8 enclose is concentric with circular charging tray 7, and the distance of the centre of a circle of every spring housing 8 and circular charging tray 7 equals promptly, and spring housing 8 link up from top to bottom, and the internal diameter of spring housing 8 slightly is greater than the spring 4 external diameter of treating the grinding for hold the spring 4 of treating the grinding, and retrain the radial displacement of spring 4 when the grinding.
In the structure, the tray seat 6 is fixed on the outer ring of the circular tray 7, and the tray seat 6 provided with the circular tray 7 is integrally and rotatably arranged in the tray frame 5. Specifically, the main body of the tray frame 5 is in a ring shape, is positioned outside the tray seat 6, and is fixed in the case 1; three square holes are uniformly formed in the tray frame 5 along the circumferential direction, a bearing 10 is arranged in each square hole through a bearing pin 9, the bearing 10 is accommodated in each square hole, an inner ring of each bearing 10 is fixed on the bearing pin 9, and a flat gasket 11 is arranged between the inner ring of each bearing 10 and the upper inner wall and the lower inner wall of each square hole; the outer side of charging tray seat 6 is equipped with the step, and the up end of charging tray seat 6 is fixed and is equipped with dome 12, and the external diameter size of dome 12 matches with the external diameter size of charging tray frame 5, and the lower terminal surface of dome 12 and the step of charging tray seat 6 form rectangular groove, and the bearing 10 outer lane is held in this rectangular groove, and bearing 10 outer lane and the outer lane step face butt of charging tray seat 6 realize the free rotation of charging tray seat 6 in charging tray frame 5.
A tray transmission mechanism mounting plate 13 is integrally arranged on one side of the tray frame 5 and the tray frame 5, and the tray transmission mechanism comprises a support 15 and a belt pulley 16; the tray transmission mechanism mounting plate 13 is provided with a support mounting hole 14, the support 15 is mounted at the support mounting hole 14, and the belt pulley 16 is arranged on the support 15. In this embodiment, be equipped with triangle belt groove on the side of charging tray seat 6 and the belt pulley 16 respectively, belt pulley 16 and charging tray seat 6 realize the transmission through V-belt 17, and the excircle of belt pulley 16 is equipped with the tooth, through gear and motor output shaft transmission, realize promptly that it rotates and then drives charging tray seat 6 and rotate to drive belt pulley 16 through the motor.
In this embodiment, the support mounting hole 14 is a waist-shaped hole, a bottom plate of the support 15 is also provided with a waist-shaped mounting hole, and the waist-shaped mounting hole is mounted on the tray transmission mechanism mounting plate 13 through a bolt, and the waist-shaped hole is provided to facilitate position adjustment of the support 15, so as to control tightness of the v-belt 17. In this embodiment, the top of the tray transmission mechanism mounting plate 13 is provided with a dust cover 18, so as to prevent abrasive dust or dust from entering the transmission mechanism and affecting the normal operation of the mechanism.
The grinding wheel component comprises two groups of grinding wheels arranged on the upper side and the lower side of a circular material tray 7, the upper group of grinding wheels and the lower group of grinding wheels are identical in structure and are respectively divided into an inner grinding wheel 2 and an outer grinding wheel 3 which are concentrically arranged, wherein the inner grinding wheel 2 is concentrically arranged on an inner ring of the outer grinding wheel 3, the gap between the inner grinding wheel and the outer grinding wheel is arranged, the upper end and the lower end of one side, close to the circle center of the circular material tray 7, of a spring 4 are respectively in contact with the inner grinding wheel 2 above and the inner grinding wheel 2 below, and the upper end.
In this embodiment, the axes of the inner grinding wheel 2 and the outer grinding wheel 3 are deviated from the axis of the circular tray 7 by a certain distance in the horizontal direction. Specifically, the radius of an outer ring of the spring 4 is defined as R, the radius of an inner ring of the spring 4 is defined as R, and the linear diameter of the spring 4 is defined as R-R; in this embodiment, the outer diameter of the inner grinding wheel 2 is equal to the distance from the circle center of the spring 4 to the circle center of the circular tray 7, the widths of the inner grinding wheel 2 and the outer grinding wheel 3 are both R + R, and the distance from the axis of the inner grinding wheel 2 to the axis of the outer grinding wheel 3 to the axis of the circular tray 7 in the horizontal direction is R.
In the specific implementation of this embodiment, the rotation directions of the upper and lower inner grinding wheels 2 are the same, the rotation directions of the upper and lower outer grinding wheels 3 are the same, and the rotation directions of the inner grinding wheels 2 and the outer grinding wheels 3 are opposite. During grinding, the upper end face and the lower end face of the spring 4 are respectively acted by grinding forces of an upper inner grinding wheel and a lower inner grinding wheel, the directions of the grinding forces acting on the end faces of the spring 4 are opposite because the rotating directions of the inner grinding wheel and the outer grinding wheel are opposite, the grinding resultant force of the upper outer grinding wheel and the grinding resultant force of the lower inner grinding wheel are not only opposite to the direction of the grinding resultant force of the upper inner grinding wheel and the grinding resultant force of the lower outer grinding wheel and the grinding resultant force of the upper inner grinding wheel and the grinding resultant force of the lower inner grinding wheel and do not act on the same straight line and do not pass through. When the spring 4 rotates, the grinding verticality precision is improved, the position of a grinding heat source on the end face of the spring is continuously changed, the temperature of a grinding face is reduced, the grinding feeding amount can be increased, and the production efficiency is improved.
Meanwhile, the charging tray transmission mechanism drives the charging tray seat 6 to rotate, and revolution of the spring 4 is realized, so that each point on the grinding wheel can grind the end face of each spring in the rotation process of the whole spring during spring grinding, the grinding wheel is uniformly abraded, the planar flatness precision of the grinding wheel is maintained, the grinding precision is improved, and meanwhile, the planar trimming frequency of the grinding wheel is reduced, the production cost is reduced, and the labor intensity of an operator is reduced.
In addition, because the axes of the inner grinding wheel 2 and the outer grinding wheel 3 deviate from the axis of the circular material tray 7 by a certain distance in the horizontal direction, each point on the grinding wheel can grind each point of the end face of the spring, the automatic plane-flattening technology of the grinding wheel is realized, and the flatness precision of the working face of the grinding wheel can be kept for a long time, namely, the grinding high precision and the grinding stability are kept for a long time.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (10)
1. A spring grinding mechanism is characterized by comprising a material tray assembly and a grinding wheel assembly; wherein:
the material tray assembly comprises a material tray frame, a circular material tray and a material tray transmission mechanism, wherein the circular material tray is arranged in the material tray frame in a transmission manner, and the material tray transmission mechanism is used for driving the circular material tray to rotate; a circle of a plurality of vertically through spring sleeves are concentrically arranged on the circular material tray and used for placing springs;
the grinding wheel assembly comprises two inner grinding wheels and two outer grinding wheels which are respectively arranged on the upper side and the lower side of the circular material tray, and the inner grinding wheels are concentrically arranged on the inner ring of the outer grinding wheels; the end surface of one side of the spring, which is close to the circle center of the circular material tray, is contacted with the inner grinding wheel, and the end surface of one side of the spring, which is far away from the circle center of the circular material tray, is contacted with the outer grinding wheel; the rotation directions of the inner grinding wheel and the outer grinding wheel are opposite.
2. The spring grinding mechanism according to claim 1, wherein the axes of the inner grinding wheel and the outer grinding wheel are offset from the axis of the circular tray by a certain distance in the horizontal direction.
3. The spring grinding mechanism according to claim 2, wherein the radius of the outer ring of the spring is defined as R, and the radius of the inner ring of the spring is defined as R;
the outer diameter of the inner grinding wheel is equivalent to the distance from the circle center of the spring to the circle center of the circular material tray; the width of the inner grinding wheel and the width of the outer grinding wheel are both R + R, and the distance of the axes of the inner grinding wheel and the outer grinding wheel deviating from the axis of the circular material tray in the horizontal direction is R.
4. The spring grinding mechanism according to claim 1, wherein a tray seat is fixedly arranged on the outer ring of the circular tray, a plurality of bearings are arranged on the tray seat along the circumferential outer side of the tray seat, and the outer ring of each bearing is abutted against the side face of the tray seat.
5. The spring grinding mechanism as claimed in claim 4, wherein the tray frame is provided with a square hole near the edge, the bearing is accommodated in the square hole, a vertical bearing pin is fixedly arranged in the square hole, and an inner ring of the bearing is fixed on the bearing pin.
6. The spring grinding mechanism as claimed in claim 5, wherein a round cover is fixedly arranged on the top of the charging tray seat, and the outer diameter of the round cover is equivalent to that of the round part of the charging tray frame.
7. The spring grinding mechanism according to claim 4, wherein a tray transmission mechanism mounting plate is integrally arranged on one side of the tray frame, and the tray transmission mechanism comprises a support and a belt pulley; the charging tray transmission mechanism mounting plate is provided with a support mounting hole, the support is mounted at the support mounting hole, and the belt pulley is arranged on the support; the material tray seat and the belt pulley are respectively provided with a triangular belt groove, and the belt pulley and the material tray seat are driven by a triangular belt.
8. The spring grinding mechanism according to claim 7, wherein the support mounting hole is a kidney-shaped hole.
9. The spring grinding mechanism according to claim 7, wherein the pulley is powered for rotation.
10. The spring grinding mechanism according to claim 7, wherein a dust cover is arranged on the top of the tray transmission mechanism mounting plate.
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CN202110343947.2A CN112846981A (en) | 2021-03-31 | 2021-03-31 | Spring grinding mechanism |
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CN202110343947.2A CN112846981A (en) | 2021-03-31 | 2021-03-31 | Spring grinding mechanism |
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