Grinding wheel segmented descending grinding structure for grinding machine

Abstract

The utility model relates to the technical field of grinding machines, in particular to a grinding wheel segmented descending grinding structure for a grinding machine, which comprises a workbench, a fixing frame is fixedly connected to one side of the upper surface of the workbench, fixing rods are fixedly connected to the two sides of the interior of the fixing frame, and a screw rod is rotatably connected to the center position of the interior of the fixing frame. According to the scheme, a second servo motor drives a two-way threaded rod to rotate, so that the two-way threaded rod rotates to drive L-shaped moving plates on the two sides to move towards or away from each other along the outer wall of a limiting rod, and then the distance between grinding machine bodies on the two sides is adjusted; the first servo motor drives the lead screw to rotate, so that the lead screw rotates to drive the lifting block to move downwards along the outer wall of the fixing rod, the grinding head makes contact with the surface of the spring, and the effects that servo driving is utilized, the grinding wheel descending mode is conducted in a segmented mode, the yield of the spring is increased, and the service life of the grinding wheel can also be prolonged are achieved.

Description

Technical Field

[0001] This application relates to the technical field of grinding machines, and in particular to a grinding structure for grinding machines with a segmented downward grinding wheel. Background Technology

[0002] In modern industrial production, grinding is an indispensable process in manufacturing high-precision parts. With the continuous advancement of industrial technology, the requirements for grinding precision and efficiency are also increasing. Traditional grinding machines typically employ a single grinding method during the grinding process, which cannot meet the processing needs of parts made of different materials, with different shapes, and requiring different precision.

[0003] In existing technologies, when grinding the surface of tempered springs, the shape and size of the grinding wheel are fixed, making it difficult for general grinding mechanisms to adjust and adapt to the spring's contour. This grinding method can deform the spring surface or damage the surface assembly structure, leading to increased spring scrap and a lower yield rate. Furthermore, general grinding structures lack angle adjustment mechanisms, making it difficult to adjust the grinding angle of the spring, requiring manual adjustment by operators, which is time-consuming and labor-intensive. Therefore, to solve the above problems, this application provides a grinding structure for a grinding machine with a segmented lowering grinding wheel. Utility Model Content

[0004] To address the issues of inability to adapt to the spring profile and difficulty in adjusting the grinding angle, this application provides a segmented lowering grinding structure for a grinding machine.

[0005] This application provides a segmented lowering grinding structure for a grinding machine, including a worktable. A fixed frame is fixedly connected to one side of the upper surface of the worktable. Fixed rods are fixedly connected to both sides of the interior of the fixed frame. A lead screw is rotatably connected at the center of the interior of the fixed frame, and the lead screw extends to the outside of the fixed frame. A lifting block is vertically connected to the interior of the fixed frame through the lead screw and the two fixed rods. A connecting frame is vertically connected to the upper surface of the worktable through the lifting block. Limit plates are fixedly connected to both sides of the interior of the connecting frame. A bidirectional threaded rod is rotatably connected to the interior of the connecting frame through the two limit plates. Two limit rods are fixedly connected to the interior of the connecting frame through the two limit plates.

[0006] Preferably, the interior of the connecting frame is slidably connected to two L-shaped moving plates via two limiting rods and a bidirectional threaded rod, and the outer wall of the connecting frame is slidably connected to two grinding machine bodies via the two L-shaped moving plates. Each grinding machine body has a grinding head fixedly connected to its drive end.

[0007] Preferably, a first servo motor is fixedly connected to one side of the upper surface of the fixed frame, and the drive end of the first servo motor passes through the inner wall of the worktable and is fixedly connected to one side of the lead screw.

[0008] Preferably, a second servo motor is fixedly connected to one side of the side wall of the connecting frame, and the drive end of the second servo motor passes through the inner wall of the connecting frame and is fixedly connected to one side of the bidirectional threaded rod.

[0009] Preferably, pneumatic clamping discs are rotatably connected to both sides of the lower surface of the worktable, and driven wheels are rotatably connected to the lower surface of the worktable through the pneumatic clamping discs.

[0010] Preferably, a support plate is fixedly connected to both sides of the lower surface of the workbench, and a third servo motor is fixedly connected to the opposite side of the support plate on both sides.

[0011] Preferably, the drive end of each of the third servo motors is fixedly connected to a drive wheel, and the driven wheel and the drive wheel are connected by a conveyor belt for transmission.

[0012] In summary, this application includes the following beneficial technical effects:

[0013] 1. A second servo motor drives a bidirectional threaded rod to rotate, causing the L-shaped moving plates on both sides to move towards or away from each other along the outer wall of the limiting rod. This adjusts the distance between the two grinding machine bodies. A first servo motor drives a lead screw to rotate, causing the lifting block to move downwards along the outer wall of the fixed rod, bringing the grinding head into contact with the spring surface. Compared to existing technologies, this method utilizes servo drive to lower the grinding wheel in stages, improving the spring's pass rate and extending the grinding wheel's lifespan.

[0014] 2. The drive wheel is driven to rotate by a third servo motor, and the drive wheel and the driven wheel are connected by a conveyor belt, so that the drive wheel drives the driven wheel to rotate. The driven wheel is connected to the pneumatic clamping plate, which in turn drives the pneumatic clamping plate to rotate on the top of the worktable, thereby adjusting the grinding angle of the spring. Compared with the existing technology, this method is more convenient for adjusting the grinding angle. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the workbench according to an embodiment of this application;

[0016] Figure 2 This is a side view of the workbench structure according to an embodiment of this application;

[0017] Figure 3 This is a schematic diagram of the workbench structure from below, according to an embodiment of this application;

[0018] Figure 4 This is a top view of the workbench structure according to an embodiment of this application.

[0019] Explanation of reference numerals in the attached drawings: 1. Worktable; 2. Fixed frame; 3. First servo motor; 4. Lead screw; 5. Fixed rod; 6. Second servo motor; 7. Connecting frame; 8. Limiting plate; 9. Bidirectional threaded rod; 10. Limiting rod; 11. L-shaped moving plate; 12. Grinding machine body; 13. Grinding head; 14. Drive wheel; 15. Pneumatic clamping plate; 16. Support plate; 17. Driven wheel; 18. Conveyor belt; 19. Third servo motor; 20. Lifting block. Detailed Implementation

[0020] The following is in conjunction with the appendix Figure 1 - Figure 4 This application will be described in further detail.

[0021] Example 1

[0022] Please see Figures 1-4 This utility model provides a segmented lowering grinding structure for a grinding machine: It includes a worktable 1, with a fixed frame 2 fixedly connected to one side of the upper surface of the worktable 1. Fixed rods 5 are fixedly connected to both sides of the interior of the fixed frame 2. A lead screw 4 is rotatably connected at the center of the interior of the fixed frame 2, extending to the outside of the fixed frame 2. A lifting block 20 is vertically connected to the interior of the fixed frame 2 via the lead screw 4 and the two fixed rods 5. The lead screw 4 is installed at the center of the interior of the fixed frame 2, with a helical angle of 20 degrees on its outer wall. The lead screw 4 is threadedly connected to the lifting block 20, and the threaded lifting of the lead screw 4 is less than the equivalent friction angle of the helical pair formed by the lead screw 4 and the lifting block 20, creating a self-locking mechanism to prevent movement due to external factors. By installing the two fixed rods 5 on both sides of the lead screw 4, the lifting block 20 can be raised and lowered. The movement direction of the lifting block 20 needs to be restricted so that the screw 4 rotates and drives the lifting block 20 to rise and fall along the outer wall of the fixed rod 5. The upper surface of the worktable 1 is connected to the connecting frame 7 via the lifting block 20. The connection between the lifting block 20 and the connecting frame 7 allows the screw 4 to rotate and drive the lifting block 20 to rise and fall, while simultaneously driving the connecting frame 7 to rise and fall. Limiting plates 8 are fixedly connected to both sides of the inside of the connecting frame 7. A bidirectional threaded rod 9 is rotatably connected to the inside of the connecting frame 7 via the two limiting plates 8. The bidirectional threaded rod 9 is installed inside the connecting frame 7 via the two limiting plates 8. The spirals on both sides of the outer wall of the bidirectional threaded rod 9 are mirror-symmetrical about the center point of the bidirectional threaded rod 9. Two limiting rods 10 are fixedly connected to the inside of the connecting frame 7 via the two limiting plates 8, which facilitates the adjustment of the height of the connecting frame 7.

[0023] Furthermore, two L-shaped moving plates 11 are slidably connected inside the connecting frame 7 via two limiting rods 10 and a bidirectional threaded rod 9. Two grinding machine bodies 12 are slidably connected to the outer wall of the connecting frame 7 via the two L-shaped moving plates 11. Grinding heads 13 are fixedly connected to the drive ends of the grinding machine bodies 12. The limiting rods 10 on both sides inside the connecting frame 7 are mirror-symmetrical with respect to the bidirectional threaded rod 9, and the movement direction of the L-shaped moving plates 11 is restricted by the two limiting rods 10. The spirals on both sides of the outer wall of the bidirectional threaded rod 9 are mirror-symmetrical with respect to the center point of the bidirectional threaded rod 9. The spiral angle of the outer wall of the bidirectional threaded rod 9 is set to 20 degrees. The bidirectional threaded rod 9 and the L-shaped moving plates 11 are threaded together. The connection is such that the thread of the bidirectional threaded rod 9 is smaller than the equivalent friction angle of the helical pair formed by the bidirectional threaded rod 9 and the L-shaped moving plate 11, forming a self-locking mechanism to prevent movement due to external factors. This allows the bidirectional threaded rod 9 to rotate, driving the L-shaped moving plates 11 on both sides to move towards or away from each other along the outer wall of the limiting rod 10. The grinding machine body 12 is mounted on the top of the worktable 1 through the L-shaped moving plate 11, which facilitates the adjustment of the distance between the two grinding machine bodies 12. The grinding head 13 is installed on the drive end of the grinding machine body 12, which drives the grinding head 13 to rotate and grind and polish the workpiece, thus achieving the purpose of facilitating the adjustment of the distance between the two grinding machine bodies 12.

[0024] Furthermore, a first servo motor 3 is fixedly connected to one side of the upper surface of the fixed frame 2. The drive end of the first servo motor 3 passes through the inner wall of the worktable 1 and is fixedly connected to one side of the lead screw 4. The first servo motor 3 is installed on the top of the fixed frame 2, and the drive end of the first servo motor 3 is connected to the lead screw 4, so that the first servo motor 3 drives the lead screw 4 to rotate inside the fixed frame 2. The preferred model of the first servo motor 3 is HBS57, and it is connected to an external power supply and control switch during use.

[0025] Furthermore, a second servo motor 6 is fixedly connected to one side of the side wall of the connecting frame 7. The drive end of the second servo motor 6 passes through the inner wall of the connecting frame 7 and is fixedly connected to one side of the bidirectional threaded rod 9. The second servo motor 6 is installed through the side wall of the connecting frame 7, and the drive end of the second servo motor 6 is connected to the bidirectional threaded rod 9, so that the second servo motor 6 drives the bidirectional threaded rod 9 to rotate inside the connecting frame 7. The preferred model of the second servo motor 6 is HBS57, and it is connected to an external power supply and control switch during use.

[0026] Example 2

[0027] Please see Figures 1-4 Furthermore, based on Example 1, the following was obtained:

[0028] Furthermore, pneumatic clamping discs 15 are rotatably connected to both sides of the lower surface of the worktable 1. The core of the pneumatic clamping disc 15 is to use compressed air to drive the piston, which drives the chuck to clamp or release the workpiece, so as to clamp and fix springs of different sizes, so that the grinding head 13 can grind the surface of the spring. Driven wheels 17 are rotatably connected to the lower surface of the worktable 1 through the pneumatic clamping discs 15.

[0029] Furthermore, support plates 16 are fixedly connected to both sides of the lower surface of the workbench 1, and a third servo motor 19 is fixedly connected to the opposite side of the support plates 16. The third servo motor 19 is installed on the side wall of the support plate 16. The model of the third servo motor 19 is preferably HBS57. When in use, it is connected to an external power supply and control switch.

[0030] Furthermore, each drive end of the third servo motor 19 is fixedly connected to a drive wheel 14. The driven wheel 17 and the drive wheel 14 are connected by a transmission belt 18. The drive end of the third servo motor 19 is connected to the drive wheel 14, so that the third servo motor 19 drives the drive wheel 14 to rotate. The drive wheel 14 and the driven wheel 17 are connected by the transmission belt 18, so that the drive wheel 14 drives the driven wheel 17 to rotate. The driven wheel 17 is connected to the pneumatic clamping plate 15, which in turn drives the pneumatic clamping plate 15 to rotate on the top of the worktable 1, so as to adjust the spring grinding angle and achieve the purpose of facilitating the adjustment of the spring grinding angle.

[0031] The implementation principle of the segmented lowering grinding structure for a grinding machine according to an embodiment of this application is as follows: In use, the spring is first fixed by the pneumatic clamping plate 15. Then, the second servo motor 6 is activated to drive the bidirectional threaded rod 9 to rotate inside the connecting frame 7. This rotation causes the two L-shaped moving plates 11 on both sides to move towards or away from each other along the outer wall of the limiting rod 10, thereby adjusting the distance between the two grinding machine bodies 12. Subsequently, the first servo motor 3 is activated to drive the lead screw 4 to rotate inside the fixed frame 2. This rotation causes the lifting block 20 to move along the fixed frame 2. The outer wall of the fixed rod 5 moves downward, causing the grinding head 13 to contact the spring surface. This causes the grinding machine body 12 to drive the grinding head 13 to rotate and grind and polish the workpiece. At the same time, the third servo motor 19 drives the drive wheel 14 to rotate. The drive wheel 14 and the driven wheel 17 are connected by the conveyor belt 18, so that the drive wheel 14 drives the driven wheel 17 to rotate. The driven wheel 17 is connected to the pneumatic clamping plate 15, which in turn drives the pneumatic clamping plate 15 to rotate on the top of the worktable 1, thereby adjusting the grinding angle of the spring and facilitating the comprehensive grinding of the spring surface.

[0032] The foregoing description, with reference to preferred embodiments, illustrates an exemplary embodiment of a segmented lowering grinding structure for a grinding machine provided by this disclosure. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the spirit of this disclosure, and various combinations can be made to the various technical features and structures proposed in this disclosure without exceeding the protection scope of this disclosure, the protection scope of which is determined by the appended claims.

Claims

1. A segmented lowering grinding structure for a grinding machine, comprising a worktable (1), characterized in that: A fixed frame (2) is fixedly connected to one side of the upper surface of the workbench (1). Fixed rods (5) are fixedly connected to both sides of the interior of the fixed frame (2). A lead screw (4) is rotatably connected to the center of the interior of the fixed frame (2), and the lead screw (4) extends to the outside of the fixed frame (2). A lifting block (20) is raised and lowered inside the fixed frame (2) through the lead screw (4) and the two fixed rods (5). A connecting frame (7) is raised and lowered on the upper surface of the workbench (1) through the lifting block (20). Limiting plates (8) are fixedly connected to both sides of the interior of the connecting frame (7). A bidirectional threaded rod (9) is rotatably connected inside the connecting frame (7) through the two limiting plates (8). Two limiting rods (10) are fixedly connected inside the connecting frame (7) through the two limiting plates (8).

2. The segmented lowering grinding structure for a grinding machine according to claim 1, characterized in that: The interior of the connecting frame (7) is slidably connected to two L-shaped moving plates (11) via two limiting rods (10) and two bidirectional threaded rods (9). The outer wall of the connecting frame (7) is slidably connected to two grinding machine bodies (12) via two L-shaped moving plates (11). The driving end of each grinding machine body (12) is fixedly connected to a grinding head (13).

3. The segmented lowering grinding structure for a grinding machine according to claim 1, characterized in that: A first servo motor (3) is fixedly connected to one side of the upper surface of the fixed frame (2). The drive end of the first servo motor (3) passes through the inner wall of the worktable (1) and is fixedly connected to one side of the lead screw (4).

4. The segmented lowering grinding structure for a grinding machine according to claim 1, characterized in that: A second servo motor (6) is fixedly connected to one side of the side wall of the connecting frame (7). The driving end of the second servo motor (6) passes through the inner wall of the connecting frame (7) and is fixedly connected to one side of the bidirectional threaded rod (9).

5. The segmented lowering grinding structure for a grinding machine according to claim 1, characterized in that: The lower surface of the worktable (1) is rotatably connected to both sides of a pneumatic clamping plate (15), and the lower surface of the worktable (1) is rotatably connected to a driven wheel (17) via the pneumatic clamping plate (15).

6. The segmented lowering grinding structure for a grinding machine according to claim 5, characterized in that: Support plates (16) are fixedly connected to both sides of the lower surface of the workbench (1), and a third servo motor (19) is fixedly connected to the opposite side of the support plates (16) on both sides.

7. The segmented lowering grinding structure for a grinding machine according to claim 6, characterized in that: The drive end of the third servo motor (19) is fixedly connected to the drive wheel (14), and the driven wheel (17) and the drive wheel (14) are connected by a transmission belt (18).

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