A grinding wheel dressing device of a vertical spindle double-end-face grinding machine

Abstract

The application discloses a grinding wheel dressing device of a vertical shaft double-end-face grinding machine, relates to the field of grinding machines, and solves the problem that the use state of a grinding wheel is difficult to monitor when the grinding wheel dressing device of the existing vertical shaft double-end-face grinding machine is used, which seriously affects the service life of the grinding wheel, and the grinding wheel dressing device comprises a machine body, a grinding mechanism and a switching mechanism, the machine body is rotationally connected with a conveying disc, the grinding mechanism comprises a switching table, an upper grinding wheel and a lower grinding wheel, the switching mechanism comprises a driving pipe and a switching piece, when the conveying disc rotates to convey raw materials, the upper grinding wheel and the lower grinding wheel are used to grind the upper and lower end faces of the raw materials, the switching mechanism drives the upper grinding wheel and the lower grinding wheel to rotate, the switching piece senses the temperature of the upper grinding wheel and the lower grinding wheel, the switching table is driven to rotate and switch after the temperature reaches a set value, the problem that the high temperature of the grinding wheel affects the grinding efficiency and the service life is avoided, the continuous machining and grinding operation of components is not affected during the switching process, and the production efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of grinding machine tool technology, specifically to a grinding wheel dressing device for a vertical spindle double-end face grinder. Background Technology

[0002] Double-end face grinders are high-efficiency surface processing machine tools that grind two parallel end faces simultaneously in one processing cycle. Based on their structure, they can be divided into horizontal and vertical types. Based on their feeding method, they can be divided into through-type, rotary type, and reciprocating type.

[0003] Existing vertical spindle double-end face grinders mostly use one set of upper grinding wheels and one set of lower grinding wheels to grind the upper and lower end faces of the workpiece simultaneously. As the workpiece is conveyed between the two sets of grinding wheels by the conveyor disc, the end face is initially not very flat and has some large burrs. This causes significant impact wear on the edge of the grinding wheel during the input process. By the time the workpiece reaches the middle of the grinding wheel, the end face has already been initially ground, and the wear on the middle of the grinding wheel is reduced. Over time, the wear on the outer wall of the grinding wheel will be much greater than the wear on the middle. If the grinding wheel is replaced directly at this point, it will greatly increase the cost of using the grinding wheel, and the middle of the grinding wheel is not yet fully worn, which is wasteful. In addition, the service life of the grinding wheel is closely related to the running time and temperature. Grinding at high temperatures for a long time will greatly reduce the service life of the grinding wheel. Summary of the Invention

[0004] The purpose of this invention is to provide a grinding wheel dressing device for a vertical spindle double-end face grinder that facilitates avoiding excessive heat and wear of the grinding wheel, thereby affecting its service life, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a grinding wheel dressing device for a vertical spindle double-end face grinder, comprising a machine body, a grinding mechanism, and a switching mechanism. A conveyor disc is rotatably connected to the machine body. The grinding mechanism includes a switching table rotatably connected to the machine body. Multiple sets of upper and lower grinding wheels are provided on the switching table. The upper grinding wheels are located on the upper side of the conveyor disc, and the lower grinding wheels are located on the lower side of the conveyor disc. When the conveyor disc rotates to convey raw materials, the upper and lower end faces of the raw materials are ground by the upper and lower grinding wheels. The switching mechanism includes a drive pipe rotatably connected to the machine body. The drive pipe passes through the conveyor disc and is rotatably connected to it. The drive pipe is equipped with a switching element for driving the upper and lower grinding wheels to rotate and sensing their temperatures. When the temperature reaches a set value, the switching table is driven to rotate and switch between the upper and lower grinding wheels. This facilitates avoiding excessive heat and wear of the grinding wheels, thus preventing a decrease in their service life.

[0006] Preferably, the grinding mechanism further includes guide posts fixedly installed on the upper grinding wheel and the lower grinding wheel respectively. The outer wall of the guide post is slidably connected to an installation ring in the vertical direction. A grinding ring is fixedly connected to the installation ring. A first gear rotatably connected to the switching table is fixedly connected to the guide post. A first spring fixedly connected to the first gear is fixedly connected to the installation ring. This facilitates grinding the upper and lower end faces of the raw material by the upper grinding wheel and the lower grinding wheel when the conveyor disc rotates to convey the raw material.

[0007] Preferably, the switching component includes a temperature-sensing ring fixedly installed on the outer wall of the drive tube, the outer wall of the temperature-sensing ring being rolledly connected to the outer wall of the mounting ring, the drive tube being used to store a liquid that can expand when heated, a side hole communicating with the temperature-sensing ring being opened on the side of the drive tube, a lifting rod being slidably connected to the top of the drive tube in a vertical direction, the lifting rod being prismatic in shape, and a rotating component on the machine body for driving the switching table to rotate by a set angle when the lifting rod moves to a set position, so as to drive the upper grinding wheel and the lower grinding wheel to rotate, and to sense the temperature of the upper grinding wheel and the lower grinding wheel, and drive the switching table to rotate and switch after the temperature reaches a set value.

[0008] Preferably, the rotating component includes a fixed frame fixedly mounted on the machine body, a rotating ring rotatably connected to the fixed frame, a drive disk coaxially fixedly connected to the rotating ring, a rotating disk coaxially fixedly connected to the switching platform, an arc-shaped groove formed on the outer wall of the rotating disk that slides and fits against the outer wall of the drive disk, a drive rod fixedly connected to the drive disk, a drive block fixedly connected to the drive rod, and multiple sets of drive grooves that can slide and connect with the outer wall of the drive block on the rotating disk. The number of drive grooves is the same as the number of the upper grinding wheels, so as to drive the switching platform to rotate by a set angle when the lifting rod moves to a set position.

[0009] Preferably, the rotating component further includes a first helical toothed ring fixedly installed on the upper end of the lifting rod. The rotating ring is provided with a speed reducer. The output end of the speed reducer is connected to the drive disk. The input end of the speed reducer is fixedly connected with a second helical toothed ring that can mesh with the first helical toothed ring. The drive disk is provided with a control component for controlling the drive disk to rotate one revolution each time, so as to drive the drive disk to rotate together with the lifting rod at a set position.

[0010] Preferably, the control component includes a connecting frame rotatably connected to the top of both the drive disk and the rotating disk. The connecting frame has a device slot, and a drive shaft is movably connected in the device slot. A guide block is fixedly connected to the outer wall of the drive shaft. The device slot has a vertical groove and a threaded groove that can slide with the outer wall of the guide block. The upper and lower ends of the vertical groove are respectively connected to the upper and lower ends of the threaded groove, which facilitates controlling the drive disk to rotate one revolution each time.

[0011] Preferably, the control component further includes a first sliding block fixedly installed at the bottom of the drive shaft. A second spring is fixedly connected to the bottom of the first sliding block, and a second sliding block is fixedly connected to the bottom of the second spring. Both the first sliding block and the second sliding block are prismatic in shape. The first sliding block and the second sliding block pass through the drive rod and the drive disk, and are slidably connected to the drive rod and the drive disk in the vertical direction.

[0012] Preferably, the switching mechanism further includes two sets of second gears fixedly installed on the outer wall of the drive tube. The two sets of second gears can respectively mesh with the first gears on the upper and lower sides. An external gear ring is fixedly connected to the outer wall of the conveyor plate. A third gear meshing with the external gear ring is rotatably connected to the machine body. A transmission belt that is driven by the pulley on the third gear is connected to the outer wall of the drive tube, so as to drive the upper grinding wheel, the lower grinding wheel and the conveyor plate to rotate through the drive tube.

[0013] Preferably, a drive motor is fixedly connected inside the machine body, and the output end of the drive motor is coaxially fixedly connected to the bottom end of the drive tube, so as to facilitate the drive tube to rotate.

[0014] Preferably, the outer edge of the grinding ring is designed with a slope to facilitate the guidance of workpieces of different heights between the upper and lower grinding wheels.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention provides a grinding wheel dressing device for a vertical spindle double-end face grinder, which solves the problem that existing grinding wheel dressing devices for vertical spindle double-end face grinders are difficult to monitor the usage status of the grinding wheels, leading to severe overheating and reduced service life. When the conveyor disc rotates to transport the raw material, the upper and lower grinding wheels grind the upper and lower end faces of the material. A switching mechanism drives the upper and lower grinding wheels to rotate. A switching element senses the temperature of the upper and lower grinding wheels, and once the temperature reaches a set value, it drives the switching table to rotate and switch between them. This avoids excessively high grinding wheel temperatures affecting grinding efficiency and service life. Simultaneously, the switching process does not interfere with the continuous processing and grinding of components, thus improving production efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a partial structural cross-sectional view of the rotating component of the present invention; Figure 3 for Figure 2 Enlarged view of region A in the middle; Figure 4 This is a partial structural cross-sectional view of the switching mechanism of the present invention; Figure 5 for Figure 4 Enlarged view of region B in the middle; Figure 6 This is a partial structural diagram of the switching mechanism of the present invention; Figure 7 for Figure 6 Enlarged view of region C; Figure 8 This is a partial structural diagram of the grinding mechanism of the present invention; Figure 9 This is a schematic diagram of a partial structure of the grinding wheel in this invention; Figure 10 This is a partial structural cross-sectional view of the grinding mechanism of the present invention.

[0017] In the diagram: 1-Machine body; 2-Conveyor disc; 3-Grinding mechanism; 4-Switching table; 5-Upper grinding wheel; 6-Lower grinding wheel; 7-Switching mechanism; 8-Drive tube; 9-Switching component; 10-Guide column; 11-Mounting ring; 12-Grinding ring; 13-First gear; 14-First spring; 15-Temperature sensing ring; 16-Side hole; 17-Lifting rod; 18-Rotating component; 19-Fixed frame; 20-Rotating ring; 21-Drive disc; 22-Rotating disc; 23-Arc groove; 24-Drive rod; 25-Drive block; 26-Drive groove; 27-First helical gear ring; 28-Reducer; 29-Second helical gear ring; 30-Control component; 31-Connecting frame; 32-Device groove; 33-Drive shaft; 34-Guide block; 35-Vertical groove; 36-Threaded groove; 37-First sliding block; 38-Second spring; 39-Second sliding block; 40-Second gear; 41-External gear ring; 42-Third gear; 43-Transmission belt; 44-Drive motor. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figures 1-10The present invention provides a technical solution: a grinding wheel dressing device for a vertical spindle double-end face grinder, comprising a machine body 1, a grinding mechanism 3 and a switching mechanism 7. A conveyor disc 2 is rotatably connected to the machine body 1. The grinding mechanism 3 includes a switching table 4 rotatably connected to the machine body 1. The switching table 4 is provided with multiple sets of upper grinding wheels 5 and lower grinding wheels 6. The upper grinding wheels 5 are located on the upper side of the conveyor disc 2, and the lower grinding wheels 6 are located on the lower side of the conveyor disc 2. The upper and lower end faces of the raw material are ground by the upper grinding wheels 5 and the lower grinding wheels 6 when the conveyor disc 2 rotates to convey the raw material.

[0020] The switching mechanism 7 includes a drive tube 8 rotatably connected to the machine body 1. The drive tube 8 passes through the conveyor plate 2 and is rotatably connected to the conveyor plate 2. A drive motor 44 is fixedly connected inside the machine body 1. The drive motor 44 is preferably a Y80M1-2. The output end of the drive motor 44 is coaxially fixedly connected to the bottom end of the drive tube 8. The drive tube 8 is provided with a switching element 9 for driving the upper grinding wheel 5 and the lower grinding wheel 6 to rotate and sensing the temperature of the upper grinding wheel 5 and the lower grinding wheel 6. After the temperature reaches the set value, the switching table 4 is driven to rotate and switch. The switching element 9 is used to drive the upper grinding wheel 5 and the lower grinding wheel 6 to rotate through the drive tube 8 and to switch the switching table 4 by rotating through the switching element 9.

[0021] The grinding mechanism 3 also includes guide posts 10 that are fixedly installed on the upper grinding wheel 5 and the lower grinding wheel 6 respectively. The outer wall of the guide post 10 is slidably connected to the mounting ring 11 in the vertical direction. A grinding ring 12 is fixedly connected to the mounting ring 11. The outer edge of the grinding ring 12 is designed with a slope. A first gear 13 that is rotatably connected to the switching table 4 is fixedly connected to the guide post 10. A first spring 14 that is fixedly connected to the first gear 13 is fixedly connected to the mounting ring 11.

[0022] The switching component 9 includes a temperature sensing ring 15 fixedly installed on the outer wall of the drive tube 8. The outer wall of the temperature sensing ring 15 is tumbledly connected to the outer wall of the mounting ring 11. The drive tube 8 is used to store a liquid that can expand when heated. A side hole 16 communicating with the temperature sensing ring 15 is opened on the side of the drive tube 8. A lifting rod 17 is slidably connected to the top of the drive tube 8 in the vertical direction. The lifting rod 17 is prismatic. The machine body 1 is provided with a rotating component 18 for driving the switching table 4 to rotate by a set angle when the lifting rod 17 moves to a set position.

[0023] The rotating component 18 includes a fixed frame 19 fixedly mounted on the machine body 1. A rotating ring 20 is rotatably connected to the fixed frame 19. A drive disk 21 is coaxially fixedly connected to the rotating ring 20. A rotating disk 22 is coaxially fixedly connected to the switching table 4. An arc-shaped groove 23 is opened on the outer wall of the rotating disk 22, which slides and fits against the outer wall of the drive disk 21. A drive rod 24 is fixedly connected to the drive disk 21. A drive block 25 is fixedly connected to the drive rod 24. Multiple sets of drive grooves 26 that can slide and connect with the outer wall of the drive block 25 are opened on the rotating disk 22. The number of drive grooves 26 is the same as the number of upper grinding wheels 5.

[0024] The rotating component 18 also includes a first helical toothed ring 27 fixedly installed on the upper end of the lifting rod 17. A reducer 28 is provided on the rotating ring 20. The output end of the reducer 28 is connected to the drive disk 21. A second helical toothed ring 29 that can mesh with the first helical toothed ring 27 is fixedly connected to the input end of the reducer 28. A control component 30 is provided on the drive disk 21 to control the drive disk 21 to rotate one revolution each time.

[0025] The control component 30 includes a connecting frame 31 that is rotatably connected to the top of both the drive disk 21 and the rotating disk 22. The connecting frame 31 has a device groove 32. A drive shaft 33 is movably connected in the device groove 32. A guide block 34 is fixedly connected to the outer wall of the drive shaft 33. The device groove 32 has a vertical groove 35 and a threaded groove 36 that can slide with the outer wall of the guide block 34. The upper and lower ends of the vertical groove 35 are respectively connected to the upper and lower ends of the threaded groove 36.

[0026] The control component 30 also includes a first sliding block 37 fixedly installed at the bottom of the drive shaft 33. A second spring 38 is fixedly connected to the bottom of the first sliding block 37, and a second sliding block 39 is fixedly connected to the bottom of the second spring 38. Both the first sliding block 37 and the second sliding block 39 are prismatic in shape. The first sliding block 37 and the second sliding block 39 pass through the drive rod 24 and the drive disk 21, and are slidably connected to the drive rod 24 and the drive disk 21 in the vertical direction.

[0027] The switching mechanism 7 also includes two sets of second gears 40 fixedly installed on the outer wall of the drive tube 8. The two sets of second gears 40 can respectively mesh with the first gears 13 on the upper and lower sides. An external gear ring 41 is fixedly connected to the outer wall of the conveyor plate 2. A third gear 42 that meshes with the external gear ring 41 is rotatably connected to the machine body 1. A transmission belt 43 that is connected to the pulley on the third gear 42 is driven to the outer wall of the drive tube 8.

[0028] In this embodiment, the drive motor 44 drives the drive tube 8 to rotate, and the drive tube 8 drives the transmission belt 43, which causes the third gear 42 to drive the external gear ring 41 and the conveyor plate 2 to rotate. This allows the workpieces in the conveyor plate 2 to be transported one by one between the corresponding upper grinding wheel 5 and lower grinding wheel 6 for double-end grinding. The pitch circle radius of the third gear 42 is much smaller than that of the external gear ring 41, so that when the drive tube 8 rotates at high speed, the rotation speed of the external gear ring 41 and the conveyor plate 2 is relatively small, ensuring stable material transport.

[0029] The drive tube 8 rotates, causing the second gear 40 to rotate, which in turn causes the first gear 13 to rotate. The first gear 13 drives the guide post 10, causing the upper grinding wheel 5 and the lower grinding wheel 6 to rotate together with the mounting ring 11. The mounting ring 11 drives the grinding ring 12 to rotate. When the workpiece is conveyed to the slope of the grinding ring 12, it will first push the grinding ring 12 to the upper and lower sides, compressing the first spring 14. As the grinding ring 12 rotates, the protrusions of the workpiece will be initially ground. After that, the workpiece is transferred between the upper grinding wheel 5 and the lower grinding wheel 6. At this time, the two ends of the workpiece are relatively flat, which reduces the wear on the upper grinding wheel 5 and the lower grinding wheel 6 and reduces the replacement frequency. Only the grinding ring 12 in the stopped state needs to be replaced and installed on the mounting ring 11.

[0030] When the mounting ring 11 rotates, it transfers the heat from the grinding ring 12 to the temperature sensing ring 15, causing the heat-expanding liquid (such as mercury) inside the temperature sensing ring 15 to expand. This expands the lifting rod 17, gradually pushing the second slider upward and compressing the second spring 38. This pushes the first sliding block 37 upward, and the drive shaft 33 drives the guide block 34 upward in the vertical groove 35, gradually reaching the top of the vertical groove 35 and connecting with the threaded groove 36. At this time, the first helical tooth ring 27 and the second helical tooth ring 29 mesh, driving the reducer 28 to drive the drive disk 21 to rotate one revolution. The drive disk 21 drives the first sliding block 37, causing the drive shaft 33 to rotate one revolution. The guide block 34 rotates one revolution in the threaded groove 36 and reaches the bottom of the vertical groove 35, after which it cannot continue to rotate. At this time, the downward displacement of the drive shaft 33 pushes the top of the lifting rod 17 downward, causing the first helical tooth ring 27 to disengage from the second helical tooth ring 29, thus disengaging the drive.

[0031] During one revolution of the drive disc 21, the drive rod 24 and drive block 25 will rotate. As the drive block 25 slides in the drive groove 26, it will drive the rotating disc 22 to rotate 120°, switching the positions of the upper grinding wheel 5 and the lower grinding wheel 6. This will cause the adjacent set of upper grinding wheels 5 and lower grinding wheels 6 to rotate to the upper and lower sides of the conveyor disc 2. Since the rotation direction of the first gear 13 is the same as the rotation direction of the switching table 4, there will be no situation where the first gear 13 and the second gear 40 cannot mesh or get stuck. During the switching process, the temperature of the mounting ring 11 that is in contact with the temperature sensing ring 15 is low, which causes the liquid in the drive tube 8 to cool down and contract, driving the lifting rod 17 to move down. This will prevent the first helical tooth ring 27 and the second helical tooth ring 29 from meshing and rotating. By repeating this process, the temperature of the grinding wheel in the grinding state can be automatically sensed and automatically switched, avoiding the situation where the temperature of the upper grinding wheel 5, the lower grinding wheel 6 and the grinding ring 12 is too high and affects the service life. At the same time, the grinding ring 12 in the non-rotating state can be easily replaced without affecting the continuous grinding efficiency of the workpiece.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grinding wheel dressing device for a vertical spindle double-end face grinder, characterized in that, include: The machine body (1) is rotatably connected to the conveyor plate (2); Also includes: The grinding mechanism (3) includes a switching platform (4) rotatably connected to the machine body (1). The switching platform (4) is provided with multiple sets of upper grinding wheels (5) and lower grinding wheels (6). The upper grinding wheels (5) are located on the upper side of the conveying disc (2), and the lower grinding wheels (6) are located on the lower side of the conveying disc (2). They are used to grind the upper and lower end faces of the raw material by means of the upper grinding wheels (5) and the lower grinding wheels (6) when the conveying disc (2) rotates to convey the raw material. The switching mechanism (7) includes a drive tube (8) rotatably connected to the machine body (1). The drive tube (8) passes through the conveyor plate (2) and is rotatably connected to the conveyor plate (2). The drive tube (8) is provided with a switching element (9) for driving the upper grinding wheel (5) and the lower grinding wheel (6) to rotate, and sensing the temperature of the upper grinding wheel (5) and the lower grinding wheel (6). After the temperature reaches a set value, the switching table (4) is driven to rotate and switch. The switching element (9) is used to drive the upper grinding wheel (5) and the lower grinding wheel (6) to rotate through the drive tube (8) and to switch the switching table (4) through the switching element (9). The grinding mechanism (3) also includes separate A guide post (10) is fixedly installed on the upper grinding wheel (5) and the lower grinding wheel (6). A mounting ring (11) is slidably connected to the outer wall of the guide post (10) in the vertical direction. A grinding ring (12) is fixedly connected to the mounting ring (11). A first gear (13) is fixedly connected to the guide post (10) and rotatably connected to the switching table (4). A first spring (14) is fixedly connected to the mounting ring (11) and fixedly connected to the first gear (13). The switching component (9) includes a temperature sensing ring (15) fixedly installed on the outer wall of the drive tube (8). The outer wall of the temperature sensing ring (15) is tumbledly connected to the outer wall of the mounting ring (11). The drive tube (8) is used to store heat-sensitive materials. The expanding liquid has a side hole (16) on the side of the drive tube (8) that communicates with the temperature sensing ring (15). The top of the drive tube (8) is slidably connected to a lifting rod (17) in the vertical direction. The lifting rod (17) is prismatic. The body (1) is provided with a rotating component (18) for driving the switching table (4) to rotate by a set angle when the lifting rod (17) moves to a set position. The rotating component (18) includes a fixed frame (19) fixedly installed on the body (1). A rotating ring (20) is rotatably connected to the fixed frame (19). A drive disk (21) is coaxially fixedly connected to the rotating ring (20). A drive disk (21) is coaxially fixedly connected to the switching table (4). 2) The outer wall of the rotating disk (22) is provided with an arc-shaped groove (23) that slides and fits against the outer wall of the driving disk (21). A driving rod (24) is fixedly connected to the driving disk (21), and a driving block (25) is fixedly connected to the driving rod (24). The rotating disk (22) is provided with multiple sets of driving grooves (26) that can slide and connect with the outer wall of the driving block (25). The number of driving grooves (26) is the same as the number of the upper grinding wheel (5). The rotating component (18) also includes a first helical toothed ring (27) fixedly installed on the upper end of the lifting rod (17). A reducer (28) is provided on the rotating ring (20). The output end of the reducer (28) is connected to the driving disk (21).The input end of the reducer (28) is fixedly connected to a second helical gear ring (29) that can mesh with the first helical gear ring (27). The drive disk (21) is provided with a control component (30) for controlling the drive disk (21) to rotate one revolution each time. The control component (30) includes a connecting frame (31) that is rotatably connected to the top of both the drive disk (21) and the rotating disk (22). The connecting frame (31) is provided with a device groove (32). A drive shaft (33) is movably connected in the device groove (32). A guide block (34) is fixedly connected to the outer wall of the drive shaft (33). A vertical groove (35) that can slide with the outer wall of the guide block (34) is provided in the device groove (32). The threaded groove (36) is connected to the upper and lower ends of the vertical groove (35) respectively. The control component (30) also includes a first sliding block (37) fixedly installed at the bottom of the drive shaft (33). A second spring (38) is fixedly connected to the bottom of the first sliding block (37), and a second sliding block (39) is fixedly connected to the bottom of the second spring (38). Both the first sliding block (37) and the second sliding block (39) are prismatic in shape. The first sliding block (37) and the second sliding block (39) pass through the drive rod (24) and the drive disk (21), and are slidably connected to the drive rod (24) and the drive disk (21) in the vertical direction.

2. The grinding wheel dressing device for a vertical spindle double-end face grinder according to claim 1, characterized in that: The switching mechanism (7) further includes two sets of second gears (40) fixedly installed on the outer wall of the drive tube (8). The two sets of second gears (40) can respectively mesh with the first gears (13) on the upper and lower sides. An external gear ring (41) is fixedly connected to the outer wall of the conveyor plate (2). A third gear (42) meshing with the external gear ring (41) is rotatably connected to the body (1). A transmission belt (43) that is connected to the pulley on the third gear (42) is driven to the outer wall of the drive tube (8).

3. The grinding wheel dressing device for a vertical spindle double-end face grinder according to claim 1, characterized in that: A drive motor (44) is fixedly connected inside the body (1), and the output end of the drive motor (44) is coaxially fixedly connected to the bottom end of the drive tube (8).

4. The grinding wheel dressing device for a vertical spindle double-end face grinder according to claim 1, characterized in that: The outer edge of the grinding ring (12) is designed with a slope.

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