Intelligent vertical grinding machine with safety protection function

Abstract

The invention discloses an intelligent vertical grinding machine with a safety protection function, and relates to the technical field of grinding machines. Comprising a lathe bed, a lifting electric cylinder is installed on the lathe bed, a lifting plate is connected to a telescopic rod of the lifting electric cylinder, a lifting cover is installed below the lifting plate, a driving motor is installed on the lifting plate, a rotating disc is installed in the lifting cover, a plurality of polishing wheels are installed on the rotating disc, and gear rings are installed on the outer sides of the polishing wheels. A three-jaw chuck is installed below the lifting cover, a supporting ring is installed on the outer side of the three-jaw chuck, a liquid blocking cylinder is arranged on the supporting ring, and gear rings are meshed with gear teeth on the multiple polishing wheels, so that the polishing wheels rotate by a certain angle, and the positions of polishing particles on the polishing wheels are changed; adjustment of the polishing effect can be achieved without replacing the polishing wheel, more convenience is achieved, the working efficiency of the grinding machine is improved, and the problem of inaccurate positioning caused by repeated replacement of the polishing wheel is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of grinding machines, and specifically to an intelligent vertical grinding machine with a safety protection function. Background Art

[0002] ‌In the field of intelligent manufacturing equipment industry, vertical grinding machines, as the core equipment for high-precision surface grinding, are widely used in industries such as automotive parts, aerospace precision components, and mold manufacturing. With the transformation of the manufacturing industry towards intelligence and high precision, the limitations of traditional vertical grinding machines in terms of operating efficiency and polishing effect have become increasingly prominent.

[0003] The existing vertical grinding machines mainly have the following problems: (1) Different polishing wheels or polishing plates need to be replaced to meet different grinding requirements, which is time-consuming and laborious. (2) The coolant is thrown off by the polishing wheel or polishing plate, resulting in the inability to cool the workpiece to be processed and the polishing wheel in a timely manner. Summary of the Invention

[0004] The purpose of the present invention is to provide an intelligent vertical grinding machine with a safety protection function to solve the problems raised in the prior art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An intelligent vertical grinding machine with a safety protection function, including a bed body, on which a lifting electric cylinder is installed. A lifting plate is connected to the telescopic rod of the lifting electric cylinder. A lifting cover is installed below the lifting plate. A driving motor is installed on the lifting plate. A rotating disk is installed inside the lifting cover. A plurality of polishing wheels are installed on the rotating disk. A gear ring is installed outside the plurality of polishing wheels. The plurality of polishing wheels jointly contact a workpiece to be processed. A three-jaw chuck is installed below the lifting cover. A support ring is installed outside the three-jaw chuck. A liquid blocking cylinder is arranged on the support ring.

[0006] The lifting cover is installed on the lifting plate through a guide shaft. The guide shaft is arranged on the lifting plate. The inside of the lifting cover is hollow. The output shaft of the driving motor is inserted into the lifting cover and connected to the rotating disk. An electric slip ring is arranged between the lifting cover and the lifting plate. The electric slip ring is electrically connected to the control system; A plurality of sliding grooves are arranged on the rotating disk. A sliding plate is slidably installed in each of the plurality of sliding grooves. The sliding plate slides in the sliding groove. The plurality of sliding plates are all connected to the rotating disk through a tension spring. The tension spring is located in the sliding groove. Both ends of the tension spring are connected to the electric slip ring through wires passing through the rotating disk and the lifting cover. A displacement sensor is arranged in the sliding groove. The displacement sensor is connected to the electric slip ring through wires passing through the rotating disk and the lifting cover. The displacement sensor detects the position of the sliding plate.

[0007] A plurality of the polishing wheels are rotatably mounted on a plurality of sliding plates through first one-way bearings. The first one-way bearings ensure that the polishing wheels do not rotate self during the grinding process. Tooth rings are provided on the outer sides of the plurality of polishing wheels. The plurality of polishing wheels are engaged with the tooth rings through the teeth. The tooth rings are rotatably arranged on the rotating disks.

[0008] A following plate is provided on one side of the tooth ring. A longitudinal rod is slidably mounted on the following plate. A ratchet plate is provided at one end of the longitudinal rod. Ratchet teeth are provided on the rotating disk outside the tooth ring. The ratchet teeth are arranged circumferentially along the rotating disk. The ratchet plate and the ratchet teeth are arranged to cooperate with each other. A locking spring is connected between the longitudinal rod and the following plate. Both ends of the locking spring are connected to the electric slip ring through wires passing through the rotating disk and the lifting cover.

[0009] The polishing particles used during the grinding of the polishing wheels are of adjustable design, so that the staff can use the polishing particles at different positions of different polishing wheels according to the actual grinding requirements. The control system cuts off the power supply of a plurality of tension springs and the driving motor. The tension springs gradually become longer under the action of their own elastic forces. The plurality of tension springs respectively push the plurality of sliding plates to move away from the center of the workpiece to be processed. The plurality of sliding plates respectively drive the plurality of polishing wheels to move synchronously, so that the teeth on the plurality of polishing wheels are engaged with the tooth ring. When the teeth on the plurality of polishing wheels are engaged with the tooth ring, the displacement sensor in the sliding groove feeds back the displacement data of the sliding plate to the control system. The staff inputs the required polishing requirements into the control system in advance. The control system energizes the rotating spring and cuts off the power supply of the locking spring. After being energized, the rotating spring gradually contracts. The rotating spring pulls the following plate to rotate a certain angle. The following plate drives the tooth ring and the longitudinal rod to rotate a certain angle. The ratchet plate on the longitudinal rod slides on the ratchet teeth on the rotating disk. The ratchet plate moves up and down during the sliding process to prevent the following plate and the tooth ring from rotating in the reverse direction, realizing the one-way locking of the following plate and the tooth ring. Since the tooth ring is engaged with the teeth on the plurality of polishing wheels, the polishing wheels rotate a certain angle through the teeth, so that the positions of the polishing particles on the polishing wheels change, realizing the adjustment of the polishing particle effect. In the face of different usage occasions, the adjustment of the polishing effect can be realized without replacing the polishing wheels, which is more convenient, improves the working efficiency of the grinding machine, and avoids the problem of inaccurate positioning caused by multiple replacements of the polishing wheels.

[0010] After the workpiece to be processed is ground, the control system cuts off the power supply of the rotating spring and energizes the locking spring. After the locking spring is energized, it gradually contracts. The locking spring pulls the ratchet plate upward through the longitudinal rod so that the ratchet plate does not contact the ratchet teeth on the rotating disk. At this time, the rotating spring is released, and the rotating spring reversely pushes the follower plate and the gear ring by a certain angle. The gear ring drives a plurality of polishing wheels back to their original positions through the teeth, so as to facilitate the adjustment of the positions of the polishing particles on the polishing wheels next time, improve the utilization rate, and have strong versatility.

[0011] It should be noted that the control system adjusts the magnitude of the current flowing into the rotating spring according to the input polishing requirements to control the degree of contraction of the rotating spring; when more precise polishing and grinding are required, the control system increases the magnitude of the current flowing into the rotating spring, so that the rotating spring contracts more, thereby realizing a larger rotation angle of the gear ring and the follower plate, and making a plurality of polishing wheels rotate by a larger angle, so as to rotate the more dense polishing particles on the plurality of polishing wheels to the side that can contact the workpiece to be processed.

[0012] A ring-shaped shaft penetrates through the follower plate. The follower plate is slidably connected to the ring-shaped shaft. Both ends of the ring-shaped shaft are arranged on the rotating disk. A rotating spring is connected between the follower plate and one end of the ring-shaped shaft. Both ends of the rotating spring are connected to the slip ring through wires passing through the rotating disk and the lifting cover. The rotating spring is sleeved on the ring-shaped shaft; Another group of displacement sensors are installed on the follower plate. The displacement sensors on the follower plate are connected to the slip ring through wires passing through the rotating disk and the lifting cover. The displacement sensors on the follower plate are used to detect the position of the follower plate.

[0013] A number of polishing particles are arranged on the outer side of the polishing wheel, and the number of the polishing particles gradually becomes denser along the circumferential direction of the polishing wheel.

[0014] The support ring is installed on the bed through a support shaft. The support shaft is installed on the bed. A liquid storage ring is installed on the outer side of the support ring. A number of round holes are provided on the support ring. A spray tube is rotatably installed in each of the number of round holes through a torsion spring. The cross section of the spray tube is in a "T" shape. A contact ball is rotatably arranged at one end of the spray tube. The other end of the spray tube forms a rotary seal with the liquid storage ring. A spraying port is provided on the spray tube. An electromagnetic valve and a flow meter are installed in the spray tube. The electromagnetic valve and the flow meter are electrically connected to the control system; A jacking plate is slidably installed on the support shaft. The jacking plate is located below the support ring. The contact ball abuts against the jacking plate. The lower side of the jacking plate is connected to the telescopic rod of a jacking electric cylinder. The jacking electric cylinder is installed on the bed.

[0015] The spraying angle of the spray tube is designed to be adjustable to face different usage scenarios. The control system drives the lifting plate to move upward through the lifting electric cylinder. The lifting plate pushes the contact ball to move, and the contact ball drives the spray tube to rotate a certain angle within the round hole. Meanwhile, the spray tube compresses the torsion spring to change the spraying angle of the spray tube. The staff can flexibly adjust the spraying angle of the spray tube according to the actual situation of the workpiece to be processed.

[0016] The interior of the liquid storage ring is hollow. A temperature sensor is arranged inside the liquid storage ring. The interior of the spray tube is communicated with the liquid storage ring. The liquid storage ring is connected to a coolant delivery system through a pipeline. The coolant delivery system is installed on the bed body. A plurality of refrigeration plates are arranged on the inner wall of the liquid storage ring. Metal plates and two semiconductors of different materials are arranged on each of the plurality of refrigeration plates. One ends of the two semiconductors of different materials are both connected to the metal plate. The two semiconductors on the refrigeration plate are electrically connected to the control system through wires.

[0017] During the grinding process of the workpiece to be processed by a plurality of polishing wheels, the encoder in the drive motor feeds back the rotation data of the plurality of polishing wheels to the control system, and the control system then obtains the position of the gap between two adjacent polishing wheels; according to the rotation data of the plurality of polishing wheels, the control system opens the solenoid valve in the spray tube located between two adjacent polishing wheels, so that the coolant is sprayed on the workpiece to be processed through the spray tube between two adjacent polishing wheels, which can prevent the coolant from being thrown off by the polishing wheels, make the coolant directly contact the workpiece to be processed, improve the cooling effect, and ensure the normal operation of grinding; The control system simultaneously delivers the coolant to the liquid storage ring through the coolant delivery system, and connects the two semiconductors on the refrigeration plate to the circuit. The two semiconductors and the metal plate on the refrigeration plate are the refrigeration ends of the Peltier effect. The coolant in the liquid storage ring is cooled through the refrigeration ends. The cooled coolant enters the spray tube between two adjacent polishing wheels and is sprayed out through the spraying ports on the spray tube, so that the cooled coolant is directly sprayed on the workpiece to be processed.

[0018] The lifting plate is slidably connected to the bed body through a guide rail. The guide rail is arranged on the bed body. The three-jaw chuck is installed on the bed body. The three-jaw chuck is a pneumatic three-jaw chuck.

[0019] A baffle is slidably installed on the bed body. The baffle provides safety protection for the staff to prevent personal injury. A controller is arranged on the bed body, and a control system is arranged inside the controller.

[0020] Compared with the prior art, the beneficial effects of the present invention are: 1. The position of the polishing particles is designed to be adjustable to face different usage scenarios. Since the gear ring meshes with the teeth on several polishing wheels, the polishing wheels rotate a certain angle through the teeth, causing the position of the polishing particles on the polishing wheels to change, thus achieving the adjustment of the polishing particle effect to face different usage scenarios. Without the need to replace the polishing wheels, the adjustment of the polishing effect can be realized more conveniently, improving the working efficiency of the grinding machine and avoiding the problem of inaccurate positioning caused by multiple replacements of the polishing wheels.

[0021] 2. The coolant is sprayed between two adjacent polishing wheels to ensure normal cooling effect. The encoder in the drive motor feeds back the rotation data of several polishing wheels to the control system, and the control system then obtains the position of the gap between two adjacent polishing wheels; according to the rotation data of several polishing wheels, the control system opens the solenoid valve in the spray tube located between two adjacent polishing wheels, so that the coolant is sprayed on the workpiece to be processed through the spray tube between two adjacent polishing wheels, which can prevent the coolant from being thrown off by the polishing wheels, making the coolant directly contact the workpiece to be processed, improving the cooling effect and ensuring the normal operation of grinding.

[0022] 3. The spraying angle of the spray tube can be flexibly adjusted according to different workpieces to be processed. The control system drives the lifting plate to move upward through the lifting electric cylinder, the lifting plate pushes the contact ball to move, and the contact ball drives the spray tube to rotate a certain angle in the round hole. At the same time, the spray tube compresses the torsion spring, causing the spraying angle of the spray tube to change. The staff can flexibly adjust the spraying angle of the spray tube according to the actual situation of the workpiece to be processed, increasing the contact area between the coolant and the polishing plate, and further improving the cooling effect of the polishing plate and the workpiece to be processed. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is the schematic structural diagram of the whole invention; Figure 2 is the schematic internal structure diagram of the bed in the invention; Figure 3 is the schematic structural diagram of the lifting cover in the invention; Figure 4 is the schematic structural diagram of the liquid blocking cylinder in the invention; Figure 5 is the schematic structural diagram of the polishing wheel in the invention; Figure 6 is the schematic structural diagram of the spray tube in the invention; Figure 7 is the schematic structural diagram of the rotating disk in the invention; Figure 8 is the schematic structural diagram of the gear ring in the invention; Figure 9 is Figure 8 the partial enlarged view of area A in Figure 10 It is a schematic diagram of the internal structure of the liquid storage ring.

[0024] In the figure: 1. Controller; 11. Bed body; 111. Baffle; 12. Lifting electric cylinder; 121. Lifting plate; 13. Lifting cover; 14. Workpiece to be processed; 2. Driving motor; 21. Rotating disk; 211. Sliding plate; 212. Tension spring; 22. Polishing wheel; 23. Gear ring; 231. Follow-up plate; 232. Longitudinal rod; 233. Ratchet plate; 234. Locking spring; 24. Ring-shaped shaft; 241. Rotation spring; 3. Three-jaw chuck; 31. Support ring; 32. Liquid blocking cylinder; 33. Lifting plate; 34. Spray cylinder; 341. Contact ball; 35. Liquid storage ring; 351. Refrigeration plate; 36. Lifting electric cylinder. Specific implementation mode

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] Embodiment: As Figures 1-10 shown, the present invention provides a technical solution for an intelligent vertical grinding machine with a safety protection function, including a bed body 11, a lifting electric cylinder 12 is installed on the bed body 11, a lifting plate 121 is connected to the telescopic rod of the lifting electric cylinder 12, a lifting cover 13 is installed below the lifting plate 121, a driving motor 2 is installed on the lifting plate 121, a rotating disk 21 is installed in the lifting cover 13, a plurality of polishing wheels 22 are installed on the rotating disk 21, a plurality of polishing particles are arranged on the outer side of the polishing wheels 22, the plurality of polishing particles are gradually denser along the circumferential direction of the polishing wheels 22, a gear ring 23 is installed on the outer side of the plurality of polishing wheels 22, the plurality of polishing wheels 22 jointly contact a workpiece to be processed 14 (shaft parts), a three-jaw chuck 3 is installed below the lifting cover 13, a support ring 31 is installed on the outer side of the three-jaw chuck 3, a liquid blocking cylinder 32 is arranged on the support ring 31, a baffle 111 is slidably installed on the bed body 11, the baffle 111 provides safety protection for the staff to prevent personal injury, and a controller 1 is arranged on the bed body 11, and a control system is arranged in the controller 1.

[0027] The lifting cover 13 is installed on the lifting plate 121 through a guide shaft. The guide shaft is arranged on the lifting plate 121. The interior of the lifting cover 13 is hollow. The output shaft of the driving motor 2 is inserted into the lifting cover 13 and connected to the rotating disk 21. An electric slip ring is arranged between the lifting cover 13 and the lifting plate 121, and the electric slip ring is electrically connected to the control system; a plurality of sliding grooves are arranged on the rotating disk 21, and a plurality of sliding plates 211 are slidably installed in the plurality of sliding grooves. The sliding plates 211 slide in the sliding grooves. The plurality of sliding plates 211 are all connected to the rotating disk 21 through tension springs 212. The tension springs 212 are located in the sliding grooves. Both ends of the tension springs 212 are connected to the electric slip ring through wires passing through the rotating disk 21 and the lifting cover 13. A displacement sensor is arranged in the sliding groove, and the displacement sensor is connected to the electric slip ring through wires passing through the rotating disk 21 and the lifting cover 13. The displacement sensor detects the position of the sliding plate 211; the lifting plate 121 is slidably connected to the bed body 11 through a guide rail. The guide rail is arranged on the bed body 11. The three-jaw chuck 3 is installed on the bed body 11. The three-jaw chuck 3 is a pneumatic three-jaw chuck.

[0028] A plurality of polishing wheels 22 are all rotatably installed on the plurality of sliding plates 211 through first one-way bearings. The first one-way bearings ensure that the polishing wheels 22 do not rotate during the grinding process. A plurality of teeth are arranged on the outer sides of the plurality of polishing wheels 22. The plurality of polishing wheels 22 are meshed with a gear ring 23 through the teeth. The gear ring 23 is rotatably arranged on the rotating disk 21.

[0029] One side of the gear ring 23 is provided with a follower plate 231. A longitudinal rod 232 is slidably installed on the follower plate 231. One end of the longitudinal rod 232 is provided with a ratchet plate 233. Ratchet teeth are arranged on the rotating disk 21 outside the gear ring 23. The ratchet teeth are arranged along the circumferential direction of the rotating disk 21. The ratchet plate 233 and the ratchet teeth are arranged in a mutually cooperating manner; a locking spring 234 is connected between the longitudinal rod 232 and the follower plate 231. Both ends of the locking spring 234 are connected to the electric slip ring through wires passing through the rotating disk 21 and the lifting cover 13.

[0030] The polishing particles used when the polishing wheel 22 grinds are of an adjustable design, so that the staff can use the polishing particles at different positions of different polishing wheels 22 according to the actual grinding requirements. The control system cuts off the power supply of the plurality of tension springs 212 and the driving motor 2. The tension springs 212 gradually become longer under the action of their own elastic forces. The plurality of tension springs 212 respectively push the plurality of sliding plates 211 to move away from the center of the workpiece 14 to be processed. The plurality of sliding plates 211 respectively drive the plurality of polishing wheels 22 to move synchronously, so that the teeth on the plurality of polishing wheels 22 are meshed with the gear ring 23; When the teeth on several polishing wheels 22 engage with the gear ring 23, the displacement sensor in the sliding groove feeds back the displacement data of the sliding plate 211 to the control system. The staff inputs the required polishing requirements into the control system in advance. The control system energizes the rotating spring 241 and de-energizes the locking spring 234. After being energized, the rotating spring 241 gradually contracts, pulling the follower plate 231 to rotate by a certain angle. The follower plate 231 drives the gear ring 23 and the longitudinal rod 232 to rotate by a certain angle. The ratchet plate 233 on the longitudinal rod 232 slides on the ratchet teeth on the rotating disk 21, and the ratchet plate 233 moves up and down during the sliding process to prevent the follower plate 231 and the gear ring 23 from rotating in the reverse direction, realizing the one-way locking of the follower plate 231 and the gear ring 23. Since the teeth on the gear ring 23 engage with the teeth on several polishing wheels 22, the polishing wheels 22 rotate by a certain angle around their own axes through the teeth, so that the positions of the polishing particles on the polishing wheels 22 change, realizing the adjustment of the polishing particle effect. To face different usage scenarios, the adjustment of the polishing effect can be achieved without replacing the polishing wheels 22, which is more convenient, improves the working efficiency of the grinding machine, and avoids the problem of inaccurate positioning caused by replacing the polishing wheels 22 multiple times.

[0031] When the workpiece 14 to be processed is ground, the control system de-energizes the rotating spring 241 and energizes the locking spring 234. After being energized, the locking spring 234 gradually contracts, pulling the ratchet plate 233 upward through the longitudinal rod 232, so that the ratchet plate 233 does not contact the ratchet teeth on the rotating disk 21. At this time, the rotating spring 241 is released, and the rotating spring 241 pushes the follower plate 231 and the gear ring 23 in the reverse direction by a certain angle. The gear ring 23 drives several polishing wheels 22 back to their original positions through the teeth, facilitating the adjustment of the positions of the polishing particles on the polishing wheels 22 next time, improving the utilization rate, and having strong versatility.

[0032] It should be noted that the control system adjusts the magnitude of the current applied to the rotating spring 241 according to the input polishing requirements to control the contraction degree of the rotating spring 241; when more precise polishing and grinding are required, the control system increases the magnitude of the current applied to the rotating spring 241, so that the rotating spring 241 contracts more, and then the rotation angles of the gear ring 23 and the follower plate 231 become larger, making several polishing wheels 22 rotate by a larger angle around their own axes, so as to rotate the more dense polishing particles on several polishing wheels 22 to the side that can contact the workpiece 14 to be processed.

[0033] The annular shaft 24 penetrates through the follower plate 231. The follower plate 231 is slidably connected to the annular shaft 24. Both ends of the annular shaft 24 are arranged on the rotating disk 21. A rotating spring 241 is connected between the follower plate 231 and one end of the annular shaft 24. Both ends of the rotating spring 241 are connected to the electric slip ring through wires passing through the rotating disk 21 and the lifting cover 13. The rotating spring 241 is sleeved on the annular shaft 24. Another set of displacement sensors is installed on the follower plate 231. The displacement sensors on the follower plate 231 are connected to the electric slip ring through wires passing through the rotating disk 21 and the lifting cover 13. The displacement sensors on the follower plate 231 are used to detect the position of the follower plate 231.

[0034] The support ring 31 is installed on the bed body 11 through a support shaft. The support shaft is installed on the bed body 11. A liquid storage ring 35 is installed on the outer side of the support ring 31. A number of round holes are provided on the support ring 31. Spray tubes 34 are rotatably installed in the number of round holes through torsion springs. The cross-section of the spray tube 34 is in a "T" shape. A contact ball 341 is rotatably arranged at one end of the spray tube 34. The other end of the spray tube 34 forms a rotary seal with the liquid storage ring 35. Spray openings are provided on the spray tube 34. An electromagnetic valve and a flowmeter are installed in the spray tube 34. The electromagnetic valve and the flowmeter are electrically connected to the control system. A jacking plate 33 is slidably installed on the support shaft. The jacking plate 33 is located below the support ring 31. The contact ball 341 abuts against the jacking plate 33. The lower side of the jacking plate 33 is connected to the telescopic rod of a jacking electric cylinder 36. The jacking electric cylinder 36 is installed on the bed body 11.

[0035] The spraying angle of the spray tube 34 is designed to be adjustable to face different usage scenarios. The control system drives the jacking plate 33 to move upward through the jacking electric cylinder 36. The jacking plate 33 pushes the contact ball 341 to move. The contact ball 341 drives the spray tube 34 to rotate a certain angle in the round hole. The spray tube 34 simultaneously compresses the torsion spring to change the spraying angle of the spray tube 34. The staff can flexibly adjust the spraying angle of the spray tube 34 according to the actual situation of the workpiece 14 to be processed.

[0036] The inside of the liquid storage ring 35 is hollow. A temperature sensor is arranged inside the liquid storage ring 35. The inside of the spray tube 34 is communicated with the liquid storage ring 35. The liquid storage ring 35 is connected to a coolant delivery system (not shown in the figure) through a pipeline. The coolant delivery system is installed on the bed body 11. A number of refrigeration plates 351 are arranged on the inner wall of the liquid storage ring 35. Metal plates and two different materials of semiconductors are arranged on the number of refrigeration plates 351. One ends of the two different materials of semiconductors are both connected to the metal plate. The two semiconductors on the refrigeration plate 351 are electrically connected to the control system through wires.

[0037] During the grinding process of the workpiece 14 to be processed by several polishing wheels 22, the encoder in the drive motor 2 feeds the rotation data of the several polishing wheels 22 back to the control system, and the control system then obtains the position of the gap between two adjacent polishing wheels 22; according to the rotation data of the several polishing wheels 22, the control system opens the solenoid valve in the spray cylinder 34 located between two adjacent polishing wheels 22, so that the coolant is sprayed onto the workpiece 14 to be processed through the spray cylinder 34 between two adjacent polishing wheels 22, which can prevent the coolant from being thrown off by the polishing wheels 22, making the coolant directly contact the workpiece 14 to be processed, improving the cooling effect, and ensuring the normal operation of grinding; The control system simultaneously transports the coolant to the liquid storage ring 35 through the coolant delivery system, and connects the two semiconductors on the refrigeration plate 351 to the circuit. The two semiconductors and the metal plate on the refrigeration plate 351 are the refrigeration ends of the Peltier effect. The coolant in the liquid storage ring 35 is cooled through the refrigeration ends, and the cooled coolant enters the spray cylinder 34 between two adjacent polishing wheels 22 and is sprayed out through the spray openings on the spray cylinder 34, so that the cooled coolant is directly sprayed onto the workpiece 14 to be processed.

[0038] Working principle: Press the start button on the controller 1, and the grinding machine starts. The staff fixes the workpiece 14 to be processed through the three-jaw chuck 3. The control system drives the lifting plate 121 to slide downward on the guide rail through the lifting electric cylinder 12. The lifting plate 121 drives the lifting cover 13 to move downward. The lifting cover 13 drives the drive motor 2, the rotating disk 21, and the polishing wheels 22 to move downward, so that the workpiece 14 to be processed is located at the position between the several polishing wheels 22; When the workpiece 14 to be processed is located at the position between the several polishing wheels 22, the displacement sensor in the lifting electric cylinder 12 feeds the displacement data of the several polishing wheels 22 back to the control system. The control system energizes the several tension springs 212. After the tension springs 212 are energized, they gradually contract. The several tension springs 212 respectively pull the several sliding plates 211 to move towards the center direction of the workpiece 14. The sliding plates 211 synchronously drive the polishing wheels 22 to move, so that the polishing particles on the several polishing wheels 22 contact the outer circle (rotating surface) of the workpiece 14, so as to facilitate the grinding treatment of the outer circle (rotating surface) of the workpiece 14.

[0039] When the several tension springs 212 are energized for the set time, the polishing particles on the several polishing wheels 22 all contact the outer circle (rotating surface) of the workpiece 14. The control system drives the rotating disk 21 to rotate through the drive motor 2. The rotating disk 21 drives the sliding plates 211 and the polishing wheels 22 to rotate along with it through the sliding grooves. Since the several polishing wheels 22 are all installed on the sliding plates 211 through the first one-way bearings, the several polishing wheels 22 revolve along with the rotating disk 21 and cannot rotate by themselves. The several polishing wheels 22 perform grinding on the outer circle (rotating surface) of the workpiece 14 through revolution.

[0040] It is obvious to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. An intelligent vertical grinding machine with a safety protection function, characterized in that: It includes a bed body (11), on which a lifting electric cylinder (12) is installed. A lifting plate (121) is connected to the telescopic rod of the lifting electric cylinder (12). A lifting cover (13) is installed below the lifting plate (121). A driving motor (2) is installed on the lifting plate (121). A rotating disk (21) is installed inside the lifting cover (13). A number of polishing wheels (22) are installed on the rotating disk (21). A gear ring (23) is installed outside the number of polishing wheels (22). The number of polishing wheels (22) jointly contact a workpiece to be processed (14). A three-jaw chuck (3) is installed below the lifting cover (13). A support ring (31) is installed outside the three-jaw chuck (3). A liquid blocking cylinder (32) is arranged on the support ring (31).

2. The intelligent vertical grinding machine with a safety protection function according to claim 1, wherein: The lifting cover (13) is installed on the lifting plate (121) through a guide shaft. The guide shaft is arranged on the lifting plate (121). The inside of the lifting cover (13) is hollow. The output shaft of the driving motor (2) is inserted into the lifting cover (13) and connected to the rotating disk (21). An electric slip ring is arranged between the lifting cover (13) and the lifting plate (121). The electric slip ring is electrically connected to the control system; A number of sliding grooves are arranged on the rotating disk (21). A sliding plate (211) is slidably installed in each of the number of sliding grooves. The number of sliding plates (211) are all connected to the rotating disk (21) through a tension spring (212). The tension spring (212) is located in the sliding groove. Both ends of the tension spring (212) are connected to the electric slip ring through wires passing through the rotating disk (21) and the lifting cover (13). A displacement sensor is arranged in the sliding groove. The displacement sensor is connected to the electric slip ring through wires passing through the rotating disk (21) and the lifting cover (13).

3. An intelligent vertical grinding machine with a safety protection function according to claim 2, characterized in that: The number of polishing wheels (22) are all rotatably installed on the number of sliding plates (211) through first one-way bearings. Teeth are arranged outside the number of polishing wheels (22). The number of polishing wheels (22) are meshed with the gear ring (23) through the teeth. The gear ring (23) is rotatably arranged on the rotating disk (21).

4. An intelligent vertical grinding machine with a safety protection function according to claim 3, characterized in that: A follower plate (231) is arranged on one side of the gear ring (23). A longitudinal rod (232) is slidably installed on the follower plate (231). A ratchet plate (233) is arranged at one end of the longitudinal rod (232). Ratchet teeth are arranged on the rotating disk (21) outside the gear ring (23). The ratchet teeth are arranged circumferentially along the rotating disk (21). The ratchet plate (233) and the ratchet teeth are arranged in a matching manner; A locking spring (234) is connected between the longitudinal rod (232) and the follower plate (231). Both ends of the locking spring (234) are connected to the electric slip ring through wires passing through the rotating disk (21) and the lifting cover (13).

5. The intelligent vertical grinding machine with a safety protection function according to claim 4, characterized in that: The annular shaft (24) penetrates through the following plate (231). The following plate (231) is slidably connected to the annular shaft (24). Both ends of the annular shaft (24) are arranged on the rotating disk (21). A rotating spring (241) is connected between the following plate (231) and one end of the annular shaft (24). Both ends of the rotating spring (241) are connected to the electric slip ring through wires passing through the rotating disk (21) and the lifting cover (13). The rotating spring (241) is sleeved on the annular shaft (24). Another set of displacement sensors is installed on the following plate (231). The displacement sensors on the following plate (231) are connected to the electric slip ring through wires passing through the rotating disk (21) and the lifting cover (13).

6. The intelligent vertical grinding machine with a safety protection function according to claim 5, wherein: A number of polishing particles are arranged on the outer side of the polishing wheel (22), and the number of the polishing particles gradually becomes denser along the circumferential direction of the polishing wheel (22).

7. An intelligent vertical grinding machine with a safety protection function according to claim 6, characterized in that: The support ring (31) is installed on the bed body (11) through a support shaft. The support shaft is installed on the bed body (11). A liquid storage ring (35) is installed on the outer side of the support ring (31). A number of round holes are provided on the support ring (31). A spray tube (34) is rotatably installed in each of the number of round holes through a torsion spring. The cross section of the spray tube (34) is in a "T" shape. A contact ball (341) is rotatably arranged at one end of the spray tube (34). The other end of the spray tube (34) forms a rotating seal with the liquid storage ring (35). A spraying port is provided on the spray tube (34). An electromagnetic valve and a flow meter are installed in the spray tube (34). The electromagnetic valve and the flow meter are electrically connected to the control system. A jacking plate (33) is slidably installed on the support shaft. The jacking plate (33) is located below the support ring (31). The contact ball (341) abuts against the jacking plate (33). The lower side of the jacking plate (33) is connected to the telescopic rod of a jacking electric cylinder (36). The jacking electric cylinder (36) is installed on the bed body (11).

8. An intelligent vertical grinding machine with a safety protection function according to claim 7, characterized in that: The inside of the liquid storage ring (35) is hollow. A temperature sensor is arranged inside the liquid storage ring (35). The inside of the spray tube (34) is communicated with the liquid storage ring (35). The liquid storage ring (35) is connected to a coolant delivery system through a pipeline. The coolant delivery system is installed on the bed body (11). A number of refrigeration plates (351) are arranged on the inner wall of the liquid storage ring (35). A metal plate and two semiconductors of different materials are arranged on each of the number of refrigeration plates (351). One ends of the two semiconductors of different materials are both connected to the metal plate. The two semiconductors on the refrigeration plate (351) are electrically connected to the control system through wires.

9. An intelligent vertical grinding machine with a safety protection function according to claim 8, characterized in that: The lifting plate (121) is slidably connected to the bed body (11) through a guide rail. The guide rail is arranged on the bed body (11). The three-jaw chuck (3) is installed on the bed body (11). The three-jaw chuck (3) is a pneumatic three-jaw chuck.

10. An intelligent vertical grinding machine with a safety protection function according to claim 9, characterized in that: A baffle (111) is slidably installed on the bed body (11). A controller (1) is arranged on the bed body (11). A control system is arranged inside the controller (1).

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