Grinding machine

Abstract

A grinder relates to the technical field of grinders. A protective cylinder is arranged on the platform, the upper portion of the protective cylinder is fixedly connected with a top cover, the bottom of the top cover is fixedly connected with a driving host, the lower portion of the driving host is fixedly connected with a grinding disc in a clamping mode, a clamping mechanism is arranged on the platform and below the grinding disc, and evenly-distributed spraying heads are arranged below the top cover. The grinding disc has the beneficial effects that the cooling disc is arranged on the grinding disc, a heat pipe system is formed in the cooling disc through the cavity, the capillary objects, the working fluid and the negative pressure environment, heat generated by the grinding disc is rapidly transmitted to the upper portion of the cooling disc, the heat of the cooling disc is taken away by cutting fluid at any time, and the heat dissipation efficiency of the grinding disc is greatly improved; and an overflowing hole A and an overflowing hole B are formed, heat dissipation can be carried out in all area ranges of the grinding sheet, the electric push rod A and the electric push rod B are arranged to stretch out and draw back disorderly, the electric push rod A pushes stretching out and drawing back, meanwhile, disorderly swinging is carried out, a workpiece is pushed to move disorderly on the platform, and the grinding effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of grinders, in particular to a grinder. Background Art

[0002] The surface grinder is a finishing grinder that uses a grinding disc to grind the surface of a workpiece. The grinding disc can rotate and reciprocate relative to the platform under the action of the driving host, so as to precisely grind the upper end surface of the workpiece. The friction between the grinding disc and the workpiece will generate a lot of heat, making the workpiece high in temperature. In order to ensure the normal processing, the temperature of the processing position needs to be controlled; The heat dissipation and cooling method adopted in the prior art is generally to spray cutting fluid on the surface of the grinding disc to achieve the purpose of cooling and lubrication. When the grinding disc is in operation, it contacts the surface of the workpiece and rotates at high speed to grind, which generates a lot of heat inside the workpiece, so that the overall temperature of the workpiece increases. The cutting fluid sprayed on its surface alone cannot play a heat dissipation and cooling role inside, resulting in excessively high grinding temperature and reduced processing quality level. In current grinding machines, the workpiece is clamped on a fixed platform. For precision grinding, a fixed rotating shaft drives the grinding disc to rotate and grind the fixed workpiece, which will result in the slowest grinding speed in the center of the workpiece (low linear speed). Due to the uneven metallographic structure inside the material, the plane accuracy will also decrease. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a grinding machine.

[0004] The technical solution provided by the present invention is: a grinding machine, comprising a platform, a protective cylinder is arranged on the platform, the upper part of the protective cylinder is fixedly connected to the top cover, the bottom of the top cover is fixedly connected to the driving host, the lower part of the driving host is clamped and fixedly connected to the grinding disc, the platform is provided with a clamping mechanism at the lower position of the grinding disc, and uniformly distributed spray heads are arranged under the top cover; The grinding disc includes a cooling disc and a grinding sheet. The grinding sheet is connected to the lower part of the cooling disc by bolts. The grinding sheet and the cooling disc are in plane contact. The grinding sheet is made of metal grinding material. A clamping column is provided on the upper part of the cooling disc. The clamping column is clamped on the driving host. The interior of the cooling disc is a hollow cavity structure. A layer of capillary is welded on the inner wall of the cavity. The cavity is filled with working fluid. The cavity is in a negative pressure state. The cooling disc is provided with flow holes A that penetrate up and down. The flow holes A are evenly arranged on the cooling disc. The grinding disc is provided with flow holes B that penetrate up and down at the corresponding positions of the flow holes A. The clamping mechanism includes a support sleeve, and the inner wall of the support sleeve is fixedly connected to a plurality of elastic claws and a power structure. The plurality of elastic claws and the power mechanism are evenly distributed on the inner circumference of the support sleeve. The power mechanism includes a swing head. A notch is opened on the support sleeve. The swing head passes through the notch of the support sleeve outwardly. The swing head has an inner hole clearance to match the connecting shaft. The shaft is vertically fixed on the platform. The inner side of the swing head is fixedly connected to the electric push rod A. The telescopic rod of the electric push rod A faces the center position of the support sleeve. The inner side of the telescopic rod of the electric push rod A is connected to the arc pressure plate through a compression spring. The outer side of the swing head is connected to the telescopic rod of the electric push rod B through a hinge. The electric push rod B is hinged to the platform. The electric push rod B is arranged vertically with the electric push rod A. The elastic claw includes a base, which is fixedly connected to the inner wall of the support sleeve by bolts. A countersunk hole is opened on the inner side of the base, and a high-pressure capsule is arranged in the countersunk hole. A baffle is arranged on the inner side of the high-pressure capsule of the countersunk hole, and a telescopic column is arranged on the inner side of the baffle. The baffle is connected with the countersunk hole by a clearance fit. The diameter of the telescopic column is smaller than the inner diameter of the countersunk hole. The base is fixedly connected to the pressure cover by bolts on the inner side of the countersunk hole. A through hole is opened in the center of the pressure cover. After the telescopic column extends out of the pressure cover, it is connected to the arc pressure plate through a compression spring.

[0005] A vibration motor is arranged on the outer wall of the supporting sleeve.

[0006] An air nozzle is arranged on one side of the high-pressure capsule, and the air nozzle extends out of the base.

[0007] A recessed annular groove is arranged on the platform, and a channel is arranged at the bottom of the annular groove to connect the lower part of the platform.

[0008] A door is arranged on one side of the protection tube, and the door and the protection tube are connected by a hinge.

[0009] The beneficial effects of the present invention are as follows: a cooling plate is arranged on the grinding sheet, and a heat pipe system is formed in the cooling plate through the cavity, capillaries, working fluid and negative pressure environment, so that the heat generated by the grinding sheet is quickly transferred to the upper part of the cooling plate, and the heat of the cooling plate is taken away by the cutting fluid at any time, which greatly improves the heat dissipation efficiency of the grinding sheet. Flow holes A and flow holes B are arranged to dissipate heat in all areas of the grinding sheet, and the electric push rods A and the electric push rods B are arranged to be retracted and extended in a disordered manner. While the electric push rod A pushes the extension and retraction, it swings in a disordered manner, which pushes the workpiece to move in a disordered manner on the platform, thereby improving the grinding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Attached Figure 1 It is a schematic diagram of the structure of the present invention; Attached Figure 2 It is a structural schematic diagram of the grinding disc in the present invention; Attached Figure 3 Yes Figure 1 AA section view; Attached Figure 4 Yes Figure 3 A magnified image of point A; Attached Figure 5 Yes Figure 2 Top view of the .

[0011] In the figure, 1-platform, 2-support sleeve, 3-grinding disc, 4-driving main unit, 5-protective cylinder, 6-top cover, 7-spray head, 8-elastic claws, 9-electric push rod A, 10-electric push rod B, 11-swing head, 12-axis, 13-arc pressure plate, 14-notch, 15-vibration motor, 16-door, 17-ring groove, 18-base, 19-pressure cover, 20-telescopic column, 21-high-pressure capsule, 22-air nozzle, 23-cooling plate, 24-flow hole A, 25-card column, 26-grinding sheet, 27-flow hole B, 28-cavity, 29-capillary, 30-blocking plate, 31-sinking hole. DETAILED DESCRIPTION

[0012] like Figures 1 to 5 As shown, a grinding machine comprises a platform 1, a protective tube 5 is provided on the platform 1, the upper part of the protective tube 5 is fixedly connected to a top cover 6, the bottom of the top cover 6 is fixedly connected to a driving host 4, the lower part of the driving host 4 is clamped and fixedly connected to a grinding disc 3, the platform 1 is provided with a clamping mechanism at the lower position of the grinding disc 3, and uniformly distributed spray heads 7 are provided under the top cover 6; The grinding disc 3 includes a cooling disc 23 and a grinding sheet 26. The grinding sheet 26 is connected to the lower part of the cooling disc 23 by bolts. The grinding sheet 26 and the cooling disc 23 are in plane contact. The grinding sheet 26 is made of metal grinding material. A clamping column 25 is provided on the upper part of the cooling disc 23. The clamping column 25 is clamped on the driving host 4. The interior of the cooling disc 23 is a hollow cavity 28 structure. A layer of capillary 29 is welded on the inner wall of the cavity 28. The cavity 28 is filled with working fluid. The cavity 28 is in a negative pressure state. The cooling disc 23 is provided with a flow hole A24 that passes through from top to bottom. The flow holes A24 are evenly arranged on the cooling disc 23. The grinding disc 26 has a flow hole B27 that passes through from top to bottom at the corresponding position of the flow hole A24. A cooling plate 23 is arranged on the grinding sheet 26. A heat pipe system is formed in the cooling plate 23 through the cavity 28, capillaries 29, working fluid and negative pressure environment. The heat generated by the grinding sheet 26 is quickly transferred to the upper part of the cooling plate 23. The heat of the cooling plate 23 is taken away by the cutting fluid at any time, which greatly improves the heat dissipation efficiency of the grinding sheet 26. The flow hole A24 and the flow hole B27 are arranged to dissipate heat in the entire area of ​​the grinding sheet 26.

[0013] The clamping mechanism includes a support sleeve 2, and the inner wall of the support sleeve 2 is fixedly connected to a plurality of elastic claws 8 and a power structure. The plurality of elastic claws 8 and the power mechanism are evenly distributed on the inner circumference of the support sleeve 2. The power mechanism includes a swing head 11. A notch 14 is opened on the support sleeve 2. The swing head 11 passes through the notch 14 of the support sleeve 2 outwardly. The swing head 11 has an inner hole clearance to match the connecting shaft 12. The shaft 12 is vertically fixed on the platform 1. The inner side of the swing head 11 is fixedly connected to the electric push rod A9. The telescopic rod of the electric push rod A9 faces the center position of the support sleeve 2. The inner side of the telescopic rod of the electric push rod A9 is connected to the arc-shaped pressing plate 13 through a compression spring. The outer side of the swing head 11 is connected to the telescopic rod of the electric push rod B10 through a hinge. The electric push rod B10 is hinged to the platform 1, and the electric push rod B10 is arranged vertically with the electric push rod A9. The elastic claw 8 includes a base 18, which is fixedly connected to the inner wall of the support sleeve 2 by bolts. A countersunk hole 31 is opened on the inner side of the base 18, and a high-pressure capsule 21 is arranged in the countersunk hole 31. A baffle 30 is provided on the inner side of the high-pressure capsule 21 of the countersunk hole 31, and a telescopic column 20 is provided on the inner side of the baffle 30. The baffle 30 is connected with the countersunk hole 31 with a clearance fit. The diameter of the telescopic column 20 is smaller than the inner diameter of the countersunk hole 31. The base 18 is fixedly connected to the pressure cover 19 on the inner side of the countersunk hole 31 by bolts. A through hole is opened in the center of the pressure cover 19. After the telescopic column 20 extends out of the pressure cover 19, it is connected to the arc pressure plate 13 through a compression spring.

[0014] During operation, the electric push rod A9 and the electric push rod B10 are set to extend and retract in a disordered manner. While the electric push rod A9 pushes the extension and retraction, it swings in a disordered manner, pushing the workpiece to move in a disordered manner on the platform 1, thereby improving the grinding effect.

[0015] A vibration motor 15 is provided on the outer wall of the support sleeve 2 to improve the randomness of movement between the grinding sheet 26 and the workpiece.

[0016] An air nozzle 22 is disposed on one side of the high-pressure capsule 21 , and the air nozzle 22 extends out of the base 18 .

[0017] A concave annular groove 17 is provided on the platform 1, and a channel is provided at the bottom of the annular groove 17 to connect the lower part of the platform 1 for discharging cutting fluid.

[0018] A door 16 is provided on one side of the protective tube 5, and the door 16 and the protective tube 5 are connected by a hinge.

Claims

1. A grinding machine, comprising a platform (1), characterized in that: A protective tube (5) is provided on the platform (1), the upper part of the protective tube (5) is fixedly connected to a top cover (6), the bottom of the top cover (6) is fixedly connected to a driving main unit (4), the lower part of the driving main unit (4) is clamped and fixedly connected to a grinding disc (3), the platform (1) is provided with a clamping mechanism at the lower part of the grinding disc (3), and evenly distributed spray heads (7) are provided below the top cover (6); The grinding disc (3) comprises a cooling disc (23) and a grinding sheet (26). The grinding sheet (26) is connected to the lower part of the cooling disc (23) by bolts. The grinding sheet (26) and the cooling disc (23) are in planar contact. The grinding sheet (26) is made of a metal grinding material. A clamping column (25) is provided on the upper part of the cooling disc (23). The clamping column (25) is clamped on the driving main unit (4). The interior of the cooling disc (23) is a hollow cavity (28) structure. A layer of capillary (29) is welded on the inner wall of the cavity (28). The cavity (28) is filled with working fluid. The cavity (28) is in a negative pressure state. The cooling disc (23) is provided with a flow hole A (24) that passes through from top to bottom. The flow holes A (24) are evenly arranged on the cooling disc (23). The grinding sheet (26) is provided with a flow hole B (27) that passes through from top to bottom at the corresponding position of the flow hole A (24). The clamping mechanism comprises a support sleeve (2), the inner wall of the support sleeve (2) is fixedly connected to a plurality of elastic claws (8) and a power structure, the plurality of elastic claws (8) and the power mechanism are evenly distributed on the inner circumference of the support sleeve (2), the power mechanism comprises a swing head (11), a notch (14) is opened on the support sleeve (2), the swing head (11) passes outward through the notch (14) of the support sleeve (2), the swing head (11) has an inner hole clearance fit to connect the shaft (12), and the shaft (12) is vertically fixed on On the platform (1), the inner side of the swing head (11) is fixedly connected to the electric push rod A (9), the telescopic rod of the electric push rod A (9) faces the center position of the support sleeve (2), the inner side of the telescopic rod of the electric push rod A (9) is connected to the arc-shaped pressure plate (13) through a compression spring, the outer side of the swing head (11) is connected to the telescopic rod of the electric push rod B (10) through a hinge, the electric push rod B (10) is hinged to the platform (1), and the electric push rod B (10) and the electric push rod A (9) are arranged vertically; The elastic claw (8) comprises a base (18), the base (18) is fixedly connected to the inner wall of the support sleeve (2) by bolts, a countersunk hole (31) is opened inside the base (18), a high-pressure capsule (21) is arranged inside the countersunk hole (31), a baffle (30) is arranged inside the high-pressure capsule (21) of the countersunk hole (31), a telescopic column (20) is arranged inside the baffle (30), the baffle (30) and the countersunk hole (31) are connected with each other by clearance fit, the diameter of the telescopic column (20) is smaller than the inner diameter of the countersunk hole (31), the base (18) is fixedly connected to a pressure cover (19) by bolts inside the countersunk hole (31), a through hole is opened in the center of the pressure cover (19), and the telescopic column (20) is connected to the arc pressure plate (13) through a compression spring after extending out of the pressure cover (19).

2. A grinding machine according to claim 1, characterized in that: A vibration motor (15) is provided on the outer wall of the support sleeve (2).

3. A grinding machine according to claim 1, characterized in that: A gas nozzle (22) is provided on one side of the high-pressure capsule (21), and the gas nozzle (22) extends out of the base (18).

4. A grinding machine according to claim 1, characterized in that: A recessed annular groove (17) is provided on the platform (1), and a channel is provided at the bottom of the annular groove (17) to connect the lower part of the platform (1).

5. A grinding machine according to claim 1, characterized in that: A door (16) is provided on one side of the protection tube (5), and the door (16) and the protection tube (5) are connected via a hinge.

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