A grinding machine

Abstract

A grinder relates to the technical field of grinders. A protective tube is provided on a platform, the upper part of the protective tube is fixedly connected to a top cover, the bottom of the top cover is fixedly connected to a driving main unit, the lower part of the driving main unit is clamped and fixedly connected to a grinding disc, a clamping mechanism is provided on the platform at the lower part of the grinding disc, and a uniformly distributed spray head is provided under the top cover. The beneficial effects of the present invention are as follows: a cooling disc is provided on the grinding disc, a heat pipe system is formed in the cooling disc through a cavity, capillaries, working fluid and a negative pressure environment, and the heat generated by the grinding disc is quickly transferred to the upper part of the cooling disc, and the heat of the cooling disc is taken away by the cutting fluid at any time, which greatly improves the heat dissipation efficiency of the grinding disc, and an overflow hole A and an overflow hole B are provided, which can dissipate heat in all areas of the grinding disc, and the electric push rod A and the electric push rod B are set to be randomly extended and retracted. While the electric push rod A pushes and retracts, it swings randomly, pushing the workpiece to move randomly on the platform, thereby improving the grinding effect.

Description

Technical Field

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

[0002] A surface grinder is a finishing grinder that uses a grinding disc to grind the surface of a workpiece. The grinding disc, driven by the main engine, can rotate and reciprocate relative to the platform to precisely grind the upper end face of the workpiece. The friction between the grinding disc and the workpiece generates a large amount of heat, causing the workpiece to become hot. To ensure normal processing, the temperature of the processing position needs to be controlled.

[0003] The heat dissipation and cooling method used 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 contact with the surface of the workpiece and rotates at high speed during grinding, a large amount of heat is generated inside it, which increases the overall temperature of the workpiece. The cutting fluid sprayed on its surface alone cannot play a heat dissipation and cooling role inside it, resulting in excessively high grinding temperature and reduced processing quality.

[0004] 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 results in the slowest grinding speed (low linear speed) in the center of the workpiece. Due to the uneven metallographic structure inside the material, the plane accuracy is also reduced. Summary of the Invention

[0005] In order to solve the above problems, the present invention provides a grinding machine.

[0006] The technical solution provided by the present invention is: a grinding machine, comprising a platform, a protective cylinder is provided on the platform, the upper portion of the protective cylinder is fixedly connected to a top cover, the bottom of the top cover is fixedly connected to a driving main unit, the lower portion of the driving main unit is clamped and fixedly connected to a grinding disc, the platform is provided with a clamping mechanism at a position below the grinding disc, and evenly distributed spray heads are provided under the top cover;

[0007] 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 material is welded on the inner wall of the cavity. The cavity is filled with working fluid and is in a negative pressure state. The cooling disc is provided with flow holes A that pass through from top to bottom. The flow holes A are evenly arranged on the cooling disc. The grinding disc has flow holes B that pass through from top to bottom at the corresponding positions of the flow holes A.

[0008] The clamping mechanism includes a support sleeve and a power mechanism. The inner wall of the support sleeve is fixedly connected to a plurality of elastic claws. 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 outward. The swing head has an inner hole clearance to fit 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 to the electric push rod A. The plurality of elastic claws and the power mechanism are evenly distributed around the inner circumference of the support sleeve.

[0009] 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 provided on the inner side of the high-pressure capsule of the countersunk hole, and a telescopic column is provided on the inner side of the baffle. The baffle is connected with the countersunk hole through 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.

[0010] A vibration motor is arranged on the outer wall of the supporting sleeve.

[0011] An air nozzle is provided on one side of the high-pressure capsule, and the air nozzle extends out of the base.

[0012] A recessed annular groove is provided on the platform, and a channel is provided at the bottom of the annular groove to connect with the lower part of the platform.

[0013] A door is provided on one side of the protective tube, and the door and the protective tube are connected by a hinge.

[0014] 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, which quickly transfers the heat generated by the grinding sheet 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. The flow holes A and the flow holes B are arranged to dissipate heat in the entire area of the grinding sheet, and the electric push rods A and the electric push rods B are arranged to be extended and retracted in a disordered manner. While the electric push rod A pushes and retracts, it swings in a disordered manner, pushing the workpiece to move in a disordered manner on the platform, thereby improving the grinding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Attachment Figure 1 It is a structural schematic diagram of the present invention;

[0016] Attachment Figure 2 It is a structural schematic diagram of the grinding disc of the present invention;

[0017] Attachment Figure 3 It is attached Figure 1 AA cross-section of

[0018] Attachment Figure 4 It is attached Figure 3 A magnified view of point A;

[0019] Attachment Figure 5 It is attached Figure 2 Top view of .

[0020] In the figure, 1-platform, 2-support sleeve, 3-grinding disc, 4-driving host, 5-protective cylinder, 6-top cover, 7-spray head, 8-elastic claw, 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 disc, 27-flow hole B, 28-cavity, 29-capillary, 30-blocking plate, 31-sinking hole. DETAILED DESCRIPTION

[0021] like Figures 1 to 5 As shown, a grinding machine includes a platform 1, a protective tube 5 is provided on the platform 1, the upper portion 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 portion of the driving host 4 is clamped and fixedly connected to a grinding disc 3, the platform 1 is provided with a clamping mechanism below the grinding disc 3, and evenly distributed spray heads 7 are provided below the top cover 6;

[0022] 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 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 host 4. The interior of the cooling disc 23 is a hollow cavity 28 structure. A layer of capillary material 29 is welded to the inner wall of the cavity 28. The cavity 28 is filled with working fluid and is in a negative pressure state. The cooling disc 23 is provided with flow holes A24 that pass through it from top to bottom. The flow holes A24 are evenly arranged on the cooling disc 23. The grinding disc 26 has flow holes B27 that pass through it from top to bottom at the corresponding positions of the flow holes A24.

[0023] A cooling plate 23 is provided on the grinding sheet 26. A heat pipe system is formed in the cooling plate 23 through the cavity 28, capillary 29, working fluid and negative pressure environment, which quickly transfers the heat generated by the grinding sheet 26 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 provided to dissipate heat in the entire area of the grinding sheet 26.

[0024] The clamping mechanism includes a support sleeve 2 and a power mechanism. The inner wall of the support sleeve 2 is fixedly connected to a plurality of elastic claws 8. The power mechanism includes 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 to fit 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 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 B10 through a hinge. The electric push rod B10 is hinged to the platform 1. The electric push rod B10 is arranged vertically to the electric push rod A9. The plurality of elastic claws 8 and the power mechanism are evenly distributed on the inner circumference of the support sleeve 2.

[0025] 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 to 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 by bolts on the inner side of the countersunk hole 31. 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.

[0026] 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 and retracts, it swings in a disordered manner, pushing the workpiece to move in a disordered manner on the platform 1, thereby improving the grinding effect.

[0027] 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.

[0028] An air nozzle 22 is provided on one side of the high-pressure capsule 21 , and the air nozzle 22 extends out of the base 18 .

[0029] 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 to the lower part of the platform 1 for discharging cutting fluid.

[0030] 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 cylinder (5) is provided on the platform (1), the upper portion of the protective cylinder (5) is fixedly connected to a top cover (6), the bottom portion of the top cover (6) is fixedly connected to a driving main unit (4), the lower portion 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 a lower position of the grinding disc (3), and evenly distributed spray heads (7) are provided below 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 A (24) that is connected vertically. 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 is connected vertically at the corresponding position of the flow hole A (24). The clamping mechanism includes a support sleeve (2) and a power mechanism. The inner wall of the support sleeve (2) is fixedly connected to a plurality of elastic claws (8). The power mechanism includes a swing head (11). The support sleeve (2) is provided with a notch (14). The swing head (11) passes through the notch (14) of the support sleeve (2) outward. The swing head (11) has an inner hole clearance fit to connect the 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 A (9). The telescopic rod of the electric push rod A (9) faces the center of the support sleeve (2), the inner side of the telescopic rod of the electric push rod A (9) is connected to the arc 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), the electric push rod B (10) and the electric push rod A (9) are arranged vertically, and a plurality of elastic claws (8) are evenly distributed on the inner circumference of the support sleeve (2) on both sides of the power mechanism; 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 provided on the inner side of the base (18), a high-pressure capsule (21) is provided in the countersunk hole (31), a baffle (30) is provided on the inner side of the high-pressure capsule (21), a telescopic column (20) is provided on the inner side of the baffle (30), the baffle (30) and the countersunk hole (31) are connected with each other in 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) by bolts on the inner side of the countersunk hole (31), a through hole is provided 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: An air nozzle (22) is provided on one side of the high-pressure capsule (21), and the air 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 with 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 protective tube (5), and the door (16) and the protective tube (5) are connected via a hinge.

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