Rotary working platform of grinding machine
By introducing spring support and rotation limit mechanisms on the rotary working platform of the grinder, the processing error problem caused by vibration is solved, and the processing accuracy and angle adjustment ability are improved.
Patent Information
- Application Number
- CN202423002763.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-12-06
AI Technical Summary
The existing rotary working platform lacks a fixed support structure, which leads to vibration during the grinding process, affecting the workpiece processing accuracy and product qualification rate.
A rotary working platform of the grinder including a base, a rotating actuator, a pulley, a spring support structure and a rotating limiting mechanism is designed. The pulley vibration is buffered by the spring, the rotation control mechanism adjusts the angle, and the rotation accuracy is maintained through the limiting mechanism.
It effectively reduces vibration errors during grinding, improves workpiece processing accuracy and product qualification rate, and provides more angle adjustment possibilities.
Smart Images
Figure CN223251313U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of mechanical processing, and more specifically, relates to a rotary working platform of a grinding machine. Background Art
[0002] A grinder is a machine tool that uses abrasive tools to grind the surface of a workpiece to obtain a smooth machined surface or remove excess material. Existing grinders mostly use high-speed rotating grinding wheels as grinding parts for grinding. During the use of the grinder, the workpiece is clamped and fixed on the worktable for easy grinding. At the same time, in order to facilitate the adjustment of the workpiece angle during the grinding process, thereby adjusting the grinding surface of the workpiece, the grinder often works in conjunction with a rotating work platform during the grinding process.
[0003] Based on the above, the existing rotary working platform lacks a fixed support structure during use, and the vibration generated during the grinding process cannot be eliminated, thereby causing dimensional errors in the workpiece during grinding and affecting the product qualification rate. Utility Model Content
[0004] In order to solve the above technical problems, the utility model provides a rotary working platform for a grinding machine to solve the problem that the existing platform lacks a supporting structure and is prone to shaking during grinding, resulting in machining errors on the workpiece.
[0005] The utility model provides a rotary working platform for a grinding machine, which is achieved by the following specific technical means:
[0006] A grinding machine rotary working platform includes a base; the base is circular and supported by four sets of vertical frames, a rotating actuator is arranged above the base, the rotating actuator includes a circular rotating bracket, a plurality of groups of connecting rods are radially evenly distributed in the rotating bracket, the connecting rods converge at a point, two circles of pulleys are arranged below the connecting rods, the two circles of pulleys form a rolling connection in the annular inner slide rail and outer slide rail respectively, the inner slide rail and the outer slide rail are fixedly connected by a connecting plate, and the outer slide rail is welded above the base; a center plate is fixedly connected to the intersection of the rotating bracket connecting rods, a rotating shaft is arranged below the center plate, a sliding sleeve is arranged below the rotating shaft, the rotating shaft forms a sliding connection in the sliding sleeve in the up and down directions, and the rotating shaft is connected to a rotation control mechanism driven by a reduction motor; a rotation limiting mechanism is installed on the sliding sleeve.
[0007] Furthermore, a plurality of groups of first springs are evenly distributed inside the inner slide rail and the outer slide rail, and a supporting ring plate is covered above the first springs; and the pulley forms a rolling connection on the supporting ring plate.
[0008] Furthermore, the cross-section of the inner wall of the sleeve is a regular hexagon, and a second spring is placed in the inner cavity of the sleeve; the bottom of the rotating shaft is fixedly connected to a hexagonal slider, the hexagonal slider forms a sliding connection in the inner cavity of the sleeve, and the bottom of the hexagonal slider is supported on the second spring.
[0009] Furthermore, the rotation control mechanism includes a star wheel; the star wheel has four corners, and a slot is opened in the center of each corner of the star wheel. The center of the star wheel is fixed on the rotating shaft. There is a lever in the slot in one corner of the star wheel. The lever is placed vertically, and the bottom of the lever is fixedly connected to the turntable. The center of the turntable is rotatably connected to the base at the bottom.
[0010] Furthermore, a pulley A is installed on the rotating shaft of the turntable, a belt is wrapped around the pulley A, and the belt is also wrapped around the pulley B. The center of the pulley B is fixedly connected to the rotating shaft of the reduction motor, and the reduction motor body is fixedly connected to the base.
[0011] Furthermore, four groups of horizontal sliding rods are evenly distributed on the side wall of the sliding sleeve, and the sliding rods are slidably connected with column sliders. The column sliders are slidably connected between the limit inner ring and the limit outer ring. The arc on one side of the limit inner ring is opened inward, and the total length of the arc accounts for nearly a quarter of the total circumference of the limit inner ring; a third spring is sleeved on one end of the sliding rod at the outer side of the column slider, and a limit block is set at the end of the sliding rod.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] 1. The utility model provides a first spring and a supporting ring plate. The first spring placed in the inner and outer slide rails supports two pulleys through the supporting ring plate, which is used to buffer the vibration generated when the workpiece is placed on the work platform for grinding, thereby reducing the processing size error caused by the vibration on the workpiece during grinding.
[0014] 2. The utility model sets a rotation control mechanism. Every time the reduction motor drives the turntable to rotate one circle, the lever on the turntable drives the star wheel to rotate about 90 degrees, and the rotating bracket and the working platform also rotate about 90 degrees, providing more adjustment angles for the working platform.
[0015] 3. The utility model sets a rotation limit mechanism. Every time the rotating shaft and the sliding sleeve rotate about ninety degrees, a column slider slidably connected on a set of sliding rods enters the arc opened inward by the limiting inner ring. The column slider is limited to the center point of the arc by the compression of the third spring, so that the rotating shaft rotates about ninety degrees each time, avoiding the inertia of the rotating actuator itself causing the working platform to rotate excessively. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is the first perspective view of the present invention.
[0017] Figure 2 This is a second viewing angle of the present invention.
[0018] Figure 3 It is a structural diagram of the base of the utility model.
[0019] Figure 4 It is a structural diagram of the rotary actuator of the utility model.
[0020] Figure 5 It is a half-section view of the rotary actuator of the utility model.
[0021] Figure 6 It is a structural diagram of the rotation control mechanism and the rotation limiting mechanism of the utility model.
[0022] Figure 7 It is a top view of the rotation limiting mechanism of the utility model.
[0023] Figure 8 This utility model Figure 5 A partial enlarged view of point A in the middle.
[0024] In the figure, the corresponding relationship between the component names and the drawing numbers is as follows:
[0025] 1. Base; 2. Rotating bracket; 3. Pulley; 4. Inner slide rail; 5. Outer slide rail; 6. Connecting plate; 7. First spring; 8. Support ring plate; 9. Center plate; 10. Rotating shaft; 11. Hexagonal slider; 12. Sleeve; 13. Second spring; 14. Star wheel; 15. Lever; 16. Turntable; 17. Pulley A; 18. Belt; 19. Pulley B; 20. Reducer motor; 21. Slide rod; 22. Column slider; 23. Inner limit ring; 24. Outer limit ring; 25. Third spring; 26. Limit block. DETAILED DESCRIPTION
[0026] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0027] Example:
[0028] As attached Figure 1 To the attached Figure 8 As shown:
[0029] The utility model provides a grinding machine rotary working platform, comprising a base 1; the base 1 is circular and supported by four groups of vertical frames, a rotating actuator is arranged above the base 1, and the rotating actuator includes a circular rotating bracket 2, a plurality of groups of connecting rods are uniformly distributed in the radial direction of the rotating bracket 2, the connecting rods converge at one point, two circles of pulleys 3 are arranged below the connecting rods, the two circles of pulleys 3 respectively form a rolling connection in the annular inner slide rail 4 and outer slide rail 5, the inner slide rail 4 and the outer slide rail 5 are fixedly connected by a connecting plate 6, and the outer slide rail 5 is welded above the base 1; a center plate 9 is fixedly connected to the intersection of the connecting rods of the rotating bracket 2, a rotating shaft 10 is arranged below the center plate 9, a sliding sleeve 12 is arranged below the rotating shaft 10, the rotating shaft 10 forms a sliding connection in the sliding sleeve 12 in the up and down directions, and the rotating shaft 10 is connected to a rotation control mechanism driven by a reduction motor 20; a rotation limiting mechanism is installed on the sliding sleeve 12.
[0030] Among them, Figure 8 As shown, multiple groups of first springs 7 are evenly distributed in the inner slide rail 4 and the outer slide rail 5, and the first springs 7 are covered with a supporting ring plate 8; the pulley 3 forms a rolling connection on the supporting ring plate 8; the first springs 7 placed in the inner slide rail 4 and the outer slide rail 5 support two circles of pulleys 3 through the supporting ring plate 8, which are used to buffer the vibration generated when the workpiece is placed on the work platform for grinding, thereby reducing the processing size error caused by the vibration on the workpiece during grinding; the storage table is fixedly connected to the top of the rotating bracket 2. In order to avoid blocking the internal structure, the table top of the rotating work platform is not drawn in the accompanying drawings.
[0031] Among them, Figure 5 As shown, the cross-section of the inner wall of the sleeve 12 is a regular hexagon, and a second spring 13 is placed in the inner cavity of the sleeve 12; the bottom of the rotating shaft 10 is fixedly connected to the hexagonal slider 11, and the hexagonal slider 11 forms a sliding connection in the inner cavity of the sleeve 12, and the bottom of the hexagonal slider 11 is supported on the second spring 13; the second spring 13 also plays a certain buffering role on the vibration generated when the workpiece is polished on the work platform; when the hexagonal slider 11 slides in the inner cavity of the sleeve 12, the sleeve 12 also plays a limiting role on the hexagonal slider 11, so that the sleeve 12 rotates together with the rotating shaft 10.
[0032] Among them, Figure 6As shown, the rotation control mechanism includes a star wheel 14; the star wheel 14 has four corners, and a slot is opened in the center of each corner of the star wheel 14. The center of the star wheel 14 is fixed on the rotating shaft 10. There is a lever 15 in the slot in one corner of the star wheel 14. The lever 15 is placed vertically. The bottom of the lever 15 is fixedly connected to the turntable 16, and the center of the turntable 16 is rotatably connected to the base 1 at the bottom; a pulley A17 is installed on the rotating shaft of the turntable 16, and a belt 18 is wrapped around the pulley A17. The belt 18 also wraps around the pulley B19. The center of the pulley B19 is fixedly connected to the rotating shaft of the reduction motor 20, and the body of the reduction motor 20 is fixedly connected to the base 1; every time the reduction motor 20 drives the turntable 16 to rotate one circle, the lever 15 on the turntable 16 drives the star wheel 14 to rotate about ninety degrees, and the rotating bracket 2 and the working platform also rotate about ninety degrees, providing more adjustment angles for the working platform.
[0033] Among them, Figure 7 As shown, four groups of horizontal sliding rods 21 are evenly distributed on the side wall of the sliding sleeve 12, and column sliders 22 are slidably connected to the sliding rods 21. The column sliders 22 are slidably connected between the limit inner ring 23 and the limit outer ring 24. The arc on one side of the limit inner ring 23 is opened inward, and the total length of the arc accounts for nearly a quarter of the total circumference of the limit inner ring 23; a third spring 25 is sleeved on one end of the sliding rod 21 on the outer side of the column slider 22, and a limit block 26 is set at the end of the sliding rod 21; every time the rotating shaft 10 and the sliding sleeve 12 rotate about ninety degrees, the column sliders 22 slidably connected on a group of sliding rods 21 enter the arc opened inwardly by the limit inner ring 23, and the column slider 22 is limited to the center point of the arc by the squeezing of the third spring 25, so that the rotating shaft 10 can maintain about ninety degrees each time it rotates, thereby preventing the inertia of the rotating actuator itself from causing the working platform to rotate excessively.
[0034] The specific usage and function of this embodiment are as follows:
[0035] In the present invention, the workpiece to be processed is clamped and fixed on the work platform, the grinding assembly of the grinder is placed close to the processing surface of the workpiece, and is continuously fed during the grinding process; the reduction motor 20 is started, and the turntable 16 is driven to rotate through the pulley B19, the belt 18 and the pulley A17; every time the turntable 16 rotates one circle, the lever 15 on the turntable 16 drives the star wheel 14 to rotate about ninety degrees, and the rotating bracket 2 and the work platform are also driven to rotate about ninety degrees through the rotating shaft 10; every time the rotating shaft 10 rotates about ninety degrees, the rotating bracket 2 and the work platform are fixedly connected to the turntable 16. The column slider 22 slidably connected to a group of sliding rods 21 of the sliding sleeve 12 enters the arc opened inward by the limiting inner ring 23, and the column slider 22 is limited to the center point of the arc by the squeezing of the third spring 25, so that the angle of each rotation of the rotating shaft 10 is maintained at about ninety degrees, avoiding the inertia of the rotating actuator itself causing the working platform to rotate excessively, providing more adjustment angles for the working platform; a first spring 7 is placed in the inner slide rail 4 and the outer slide rail 5 to support two circles of pulleys 3 through the supporting ring plate 8 to buffer the vibration generated when grinding the workpiece.
[0036] Anything not described in detail in the present invention is well known to those skilled in the art.
Claims
1. A grinding machine rotary working platform, comprising a base (1); the base (1) is circular and supported by four sets of vertical frames, a rotary actuator is arranged above the base (1), the rotary actuator comprises a circular rotary bracket (2), a plurality of groups of connecting rods are uniformly arranged in a radially uniform manner in the inner radial direction of the rotary bracket (2), the connecting rods converge at one point, two circles of pulleys (3) are arranged below the connecting rods, the two circles of pulleys (3) respectively form a rolling connection in the annular inner slide rail (4) and the outer slide rail (5), the inner slide rail (4) and the outer slide rail (5) are fixedly connected by a connecting plate (6), and the outer slide rail (5) is welded above the base (1); a center plate (9) is fixedly connected to the intersection of the connecting rods of the rotary bracket (2), a rotary shaft (10) is arranged below the center plate (9), and a sliding sleeve (12) is arranged below the rotary shaft (10), characterized in that: The rotating shaft (10) forms a sliding connection in an up-down direction in the sliding sleeve (12), and the rotating shaft (10) is connected to a rotation control mechanism driven by a reduction motor (20); a rotation limiting mechanism is installed on the sliding sleeve (12).
2. The grinding machine rotary working platform according to claim 1, characterized in that: Multiple groups of first springs (7) are evenly distributed inside the inner slide rail (4) and the outer slide rail (5), and the first springs (7) are covered with a supporting ring plate (8); the pulley (3) forms a rolling connection on the supporting ring plate (8).
3. The grinding machine rotary working platform according to claim 1, characterized in that: The cross-section of the inner cavity wall of the sliding sleeve (12) is a regular hexagon, and a second spring (13) is placed in the inner cavity of the sliding sleeve (12); the bottom of the rotating shaft (10) is fixedly connected to the hexagonal slider (11), and the hexagonal slider (11) forms a sliding connection in the inner cavity of the sliding sleeve (12), and the bottom of the hexagonal slider (11) is supported on the second spring (13).
4. The rotary working platform of a grinding machine according to claim 1, characterized in that: The rotation control mechanism includes a star wheel (14); the star wheel (14) has four corners, and a slot is opened at the center of each corner of the star wheel (14). The center of the star wheel (14) is fixed on the rotating shaft (10). A shift lever (15) is arranged in the slot of one corner of the star wheel (14). The shift lever (15) is placed vertically, and the bottom of the shift lever (15) is fixedly connected to the turntable (16). The center of the turntable (16) is rotatably connected to the base (1) at the bottom.
5. The grinding machine rotary working platform according to claim 4, characterized in that: A pulley A (17) is installed on the rotating shaft of the turntable (16), a belt (18) is wound around the pulley A (17), and the belt (18) is also wound around the pulley B (19), and the center of the pulley B (19) is fixedly connected to the rotating shaft of the reduction motor (20), and the body of the reduction motor (20) is fixedly connected to the base (1).
6. The grinding machine rotary working platform according to claim 1, characterized in that: Four groups of horizontal sliding rods (21) are evenly distributed on the side wall of the sliding sleeve (12), and column sliders (22) are slidably connected to the sliding rods (21). The column sliders (22) are slidably connected between the limiting inner ring (23) and the limiting outer ring (24). An arc is opened inward on one side of the limiting inner ring (23), and the total length of the arc accounts for nearly one-quarter of the total circumference of the limiting inner ring (23); a third spring (25) is sleeved on one end of the sliding rod (21) outside the column slider (22), and a limiting block (26) is set at the end of the sliding rod (21).