Grinding machine for nut production and machining

Abstract

The invention belongs to the technical field of nut production and machining, and particularly relates to a nut production and machining grinding miller which comprises a workbench, a discharging circular truncated cone is arranged on the workbench, a nut discharging mechanism is arranged on the discharging circular truncated cone, a first supporting plate and a second supporting plate are fixed to the workbench, a first oil cylinder is fixed to the first supporting plate, and a second oil cylinder is fixed to the second supporting plate. The driving end of the first oil cylinder penetrates through the second supporting plate and is fixedly provided with a bearing base. A nut to be ground is automatically fed into the bearing base for grinding work by arranging the rotating magnet block, the rotating pipe and the nut are fixedly connected through the fixing mechanism, the rotating motor drives the nut to rotate to replace the contact position with the grinding disc, and the grinding disc can complete grinding work of the outer wall of the nut; and when grinding is finished, automatic falling-out of the nuts is achieved through movement of the bearing base, feeding, fixing and discharging of the nuts are more automatic, and the problem that manual feeding and discharging are needed in each time of grinding is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of nut production and processing, and in particular to a grinding machine for nut production and processing. Background Art

[0002] During the production and processing of nuts, surface grinding is a key process to ensure product dimensional accuracy and smoothness. Traditional grinding machines usually adopt a single-station design, that is, the nut is fixed and then processed in one go by a grinding wheel or grinding disc.

[0003] Existing equipment, such as fixed-type grinding machines, requires each nut to be machined to be clamped individually between a support plate and a clamping nut, secured by a threaded rod. After each machining operation, the machine must be shut down, the finished product disassembled, and a new workpiece re-clamped. Frequent starting and stopping leads to compression of effective working time and high intensity of manual intervention. For example, CN218825062U discloses a grinding machine for nut production and processing, comprising a workbench and a grinding disc, the top of the workbench is fixedly connected to a support plate, the top of the workbench is rotatably provided with a rotating shaft, one side of the support plate is rotatably provided with a horizontal shaft, a driving assembly is provided between the horizontal shaft and the rotating shaft, and a fixing assembly is provided on the top of the rotating shaft; through the arrangement of the support disc, threaded rod, fastening nut and anti-slip sheet, the nut to be processed can be fixed between the support disc and the fastening nut, so that it is fixed more firmly, ensuring the grinding effect, and through the arrangement of the vertical shaft, active bevel gear, driven bevel gear, adjusting screw and adjusting rod, it is convenient to adjust the position of the grinding disc so that it can abut against one side of nuts of different diameters, thereby grinding nuts of different diameters, thereby improving the adaptability of the device; the above application has the problem that the nut needs to be installed and disassembled each time it is ground, affecting the processing process.

[0004] In order to solve the above problems, we propose a grinding machine for nut production and processing. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems in the background technology and to propose a grinding machine for producing and processing nuts.

[0006] In order to achieve the above-mentioned objectives, the present invention adopts the following technical solutions: a grinding machine for producing and processing nuts, comprising a workbench, a blanking circular table is provided on the workbench, a nut discharging mechanism is provided on the blanking circular table, a support plate one and a support plate two are fixed on the workbench, an oil cylinder one is fixed on the support plate one, a driving end of the oil cylinder one passes through the support plate two and is fixed with a bearing seat, a driving motor is fixed on the support plate two, an opening is provided on the outer wall of the bearing seat, a grinding disc located in the opening is fixed on the driving end of the driving motor, the nut is guided into the bearing seat by the nut discharging mechanism, the grinding disc contacts the nut for grinding, a right-angle plate is fixed on the outer wall of the workbench, an oil cylinder two is fixed on the driving end of the right-angle plate, a rotating motor is fixed vertically downward on the driving end of the oil cylinder two, and a fixing mechanism for fixing the nut is fixed on the driving end of the rotating motor.

[0007] In the above-mentioned grinding machine for producing and processing nuts, the nut discharging mechanism includes a storage tank fixed on a feeding circular table, a nut bearing groove and a nut sliding groove are provided on the feeding circular table, a through opening connected to the nut bearing groove is provided through the feeding circular table, a push plate is slidably inserted in the through opening, a magnet plate is fixed on the end of the push plate, a telescopic spring is fixedly connected between the magnet plate and the outer wall of the feeding circular table, an installation opening is provided on the outer wall of the feeding circular table, a motor is fixed in the installation opening, and a driving end of the motor is fixedly connected to a magnet block, and the magnet block is intermittently arranged opposite to the magnet plate during rotation, and the push plate is pushed to move by the magnetic repulsion between the magnet block and the magnet plate.

[0008] In the above-mentioned grinding machine for producing and processing nuts, the fixing mechanism includes a rotating tube fixedly connected to the driving end of the rotating motor, and the outer wall of the lower end of the rotating tube is provided with a symmetrically arranged through-hole, and a U-shaped plate is slidably inserted in the through-hole, and a reset spring is fixedly connected between the U-shaped plate and the outer wall of the rotating tube. One end of the two U-shaped plates located in the rotating tube is cut with an inclined surface, and an isosceles trapezoidal plate in contact with the inclined surface of the U-shaped plate is slidably inserted at the lower end of the rotating tube. When the lower end of the rotating tube is inserted into the supporting seat, the isosceles trapezoidal plate is squeezed to move up, and the isosceles trapezoidal plate squeezes the U-shaped plate outward to press against the inner wall of the nut to complete the fixation of the nut.

[0009] In the above-mentioned grinding machine for producing and processing nuts, an arc-shaped surface is provided on the outer wall of one end of the U-shaped plate located outside the rotating tube.

[0010] In the above-mentioned grinding machine for producing and processing nuts, a water trough is embedded in the workbench, and the water trough is composed of a vertical groove on the left and an oblique groove on the right. The outer wall of the vertical groove is integrally formed with an extension groove, and an extrusion piston is slidably arranged in the vertical groove, and a horizontal plate is fixed on the outer wall of the extrusion piston, and a connecting spring is fixed between the horizontal plate and the bottom wall of the extension groove. When the magnet block rotates downward, it touches the extrusion piston and moves downward, and the outer wall of the vertical groove is connected to a drain pipe, and the end of the drain pipe is fixedly connected to a drain box, and a heat conduction plate is fixedly connected to the outer wall of the grinding disc, and an annular groove is provided on the heat conduction disc, and evenly distributed contact holes are provided on the inner wall of the annular groove, and a drain port is provided on the lower side wall of the drainage box, which is located on the upper side of the heat conduction disc, and a water guide plate is provided on the upper side of the workbench, and a water guide groove is provided on the water guide plate, and the end of the water guide plate is located on the upper side of the oblique groove.

[0011] In the above-mentioned grinding machine for producing and processing nuts, a baffle with an end portion located outside the end portion of the water guide plate is fixed to the upper side wall of the inclined groove.

[0012] In the above-mentioned grinding machine for producing and processing nuts, a heat conducting plate is fixedly embedded in the bottom of the water conducting groove, and a semiconductor cooling plate is fixed on the back of the heat conducting plate.

[0013] Compared with the existing technology, the advantages of this nut production and processing grinding machine are: 1. A rotating magnet block is set. During the rotation process, the magnet block is intermittently set opposite to the magnet plate. The push plate is pushed to move by the magnetic repulsion between the magnet block and the magnet plate. The nuts to be ground are stacked in the storage tank. Under the action of gravity, the nut at the bottom falls into the nut bearing groove. When grinding, the motor is started to drive the magnet block to rotate. When the magnet block rotates to be opposite to the magnet plate, the push plate moves under the action of the magnetic repulsion and pushes the nut into the nut lower groove. The nut slides down along the nut lower groove into the bearing seat, realizing automatic pushing out of the nut and automatically sliding into the bearing seat for grinding. 2. Set up a fixing mechanism. After the nut enters the bearing seat, the driving end of the second oil cylinder extends, driving the rotating tube to move down and insert into the nut. The driving end of the second oil cylinder continues to extend, and the lower end of the isosceles trapezoidal plate contacts the bottom wall of the bearing seat, squeezing the isosceles trapezoidal plate to move upward. Through the contact between the isosceles trapezoidal plate and the inclined surface, the two U-shaped plates are squeezed outward, so that the U-shaped plates are tightly pressed against the inner wall of the nut, completing the connection between the rotating tube and the nut. At this time, the outer wall of the nut can be ground by the rotation of the grinding disc and the rotating motor driving the nut to rotate. 3. Set up oil cylinder 1, which drives the bearing seat to move. After the outer wall of the nut is ground, the oil cylinder 1 drives the bearing seat to move right, and the nut in the bearing seat can fall out, realizing automatic discharge of the nut; 4. Set up a water tank. When the magnet block rotates to the lower side, the magnet block contacts the extrusion piston, pushing the extrusion piston downward, pushing the water in the vertical tank out of the drain pipe into the drainage box, and then discharged through the drain port to contact the heat conduction plate. During the grinding process of the grinding plate, a large amount of heat will be generated due to contact friction. The heat conduction plate absorbs the heat from the grinding plate and conducts it out. The water in the drainage box is constantly exposed and contacts the heat conduction plate, absorbing the heat from the heat conduction plate and taking it out, completing the cooling work of the grinding plate, so that the grinding plate can continue to grind; To sum up, the present invention realizes automatic loading of the nuts to be ground into the supporting seat for grinding by setting a rotating magnet block, and sets a fixing mechanism to connect and fix the rotating tube and the nut. The rotating motor drives the nut to rotate and change the contact position with the grinding disk. The grinding disk can complete the grinding of the outer wall of the nut. When the grinding is completed, the nut is automatically dropped out by the movement of the supporting seat. The loading, fixing and unloading of the nuts are more automated, avoiding the problem of manual loading and unloading for each grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the external structure of a grinding machine for producing and processing nuts proposed by the present invention; Figure 2 This is a schematic structural diagram of a bearing seat in a grinding machine for producing and processing nuts proposed by the present invention; Figure 3 This is a structural diagram of the connection between the grinding disk and the heat conducting disk of a grinding machine for producing and processing nuts proposed by the present invention; Figure 4 This is a schematic structural diagram of a fixing mechanism in a grinding machine for producing and processing nuts proposed by the present invention; Figure 5 This is a structural diagram of the connection between the middle-waist trapezoidal plate and the U-shaped plate of a grinding machine for producing and processing nuts proposed by the present invention; Figure 6 This is a structural schematic diagram of a feeding table in a grinding machine for producing and processing nuts proposed by the present invention; Figure 7 This is a structural schematic diagram of a grinding machine for producing and processing nuts proposed by the present invention from another angle; Figure 8 This is a schematic structural diagram of an extrusion piston in a grinding machine for producing and processing nuts proposed by the present invention; Figure 9 This is a structural schematic diagram of a water guide plate in a grinding machine for nut production and processing proposed by the present invention.

[0015] In the figure: 1 workbench, 2 blanking round table, 3 storage tank, 4 nut sliding groove, 5 horizontal plate, 6 magnet block, 7 magnet plate, 8 telescopic spring, 9 support plate 1, 10 cylinder 1, 11 support plate 2, 12 drive motor, 13 heat conduction plate, 14 grinding plate, 15 contact hole, 16 bearing seat, 17 opening, 18 right-angle plate, 19 cylinder 2, 20 rotating motor, 21 rotating tube, 22 U-shaped plate, 23 return spring, 24 isosceles trapezoidal plate, 25 water guide groove, 26 connecting spring, 27 vertical groove, 28 extrusion piston, 29 extension groove, 30 inclined groove, 31 water guide plate, 32 baffle, 33 drainage pipe, 34 drainage box. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0017] Reference Figures 1-9 , a nut production and processing grinding machine includes a workbench 1, a blanking round table 2 is provided on the workbench 1, a nut discharging mechanism is provided on the blanking round table 2, the nut discharging mechanism includes a storage tank 3 fixed on the blanking round table 2, a nut bearing groove and a nut sliding groove 4 are provided on the blanking round table 2, a through-hole connected to the nut bearing groove is provided on the blanking round table 2, a push plate is slidably inserted in the through-hole, a magnet plate 7 is fixed on the end of the push plate, a telescopic spring 8 is fixedly connected between the magnet plate 7 and the outer wall of the blanking round table 2, a mounting port is opened on the outer wall of the blanking round table 2, a motor is fixed in the mounting port, and a magnet block 6 is fixedly connected to the driving end of the motor. During the rotation of the magnet block 6, it is intermittently arranged relative to the magnet plate 7, through the magnet The magnetic repulsion between the block 6 and the magnet plate 7 pushes the push plate to move, and the nuts to be ground are stacked in the storage tank 3. Under the action of gravity, the nut on the lower side falls into the nut bearing groove. When grinding, the motor is started to drive the magnet block 6 to rotate. When the magnet block 6 rotates to be opposite to the magnet plate 7, the push plate moves under the action of the magnetic repulsion to push the nut into the lower groove 4 of the nut, and slides down along the lower groove 4 of the nut to the bearing seat 16, and then the nut is fixed by the fixing mechanism. At this time, the nut is in contact with the grinding disk 14, and the driving motor 12 drives the grinding disk 14 to rotate rapidly. The rotating motor 20 drives the rotating tube 21 and the nut to rotate slowly, and the grinding of the outer wall of the nut is completed through the contact between the grinding disk 14 and the nut.

[0018] A support plate 1 9 and a support plate 2 11 are fixed on the workbench 1, an oil cylinder 10 is fixed on the support plate 1 9, a driving end of the oil cylinder 10 passes through the support plate 2 11 and is fixed with a bearing seat 16, a driving motor 12 is fixed on the support plate 2 11, an opening 17 is provided on the outer wall of the bearing seat 16, a grinding disc 14 located in the opening 17 is fixed to the driving end of the driving motor 12, the nuts are discharged into the bearing seat 16 through the nut discharging mechanism, and the grinding disc 14 contacts the nuts to perform grinding.

[0019] The outer wall of the workbench 1 is fixed with a right-angle plate 18, and the driving end of the right-angle plate 18 is fixed with an oil cylinder 21, and the driving end of the oil cylinder 21 is fixed with a rotating motor 20 vertically downward, and the driving end of the rotating motor 20 is fixed with a fixing mechanism for fixing the nut, and the fixing mechanism includes a rotating tube 21 fixedly connected to the driving end of the rotating motor 20, and the outer wall of the lower end of the rotating tube 21 is provided with a symmetrically arranged through-hole, and a U-shaped plate 22 is slidably inserted into the through-hole, and a return spring 23 is fixedly connected between the U-shaped plate 22 and the outer wall of the rotating tube 21, and one end of the two U-shaped plates 22 located in the rotating tube 21 is cut with an inclined surface, and the lower end of the rotating tube 21 is slidably inserted with an isosceles trapezoidal plate 24 that contacts the inclined surface of the U-shaped plate 22. When the lower end of the rotating tube 21 is inserted into the bearing seat 16, the isosceles trapezoidal plate 24 is squeezed to move upward, and the isosceles trapezoidal plate 24 squeezes the U-shaped plate The plate 22 moves outward and presses against the inner wall of the nut to complete the fixation of the nut. The outer wall of the U-shaped plate 22 at one end of the outer wall of the rotating tube 21 is provided with an arc surface. The arc surface is more in contact with the inner wall of the nut, increasing the contact area, ensuring the tight contact between the U-shaped plate 22 and the nut. After the nut enters the bearing seat 16, the driving end of the oil cylinder 21 extends, driving the rotating tube 21 to move down to insert into the nut. The driving end of the oil cylinder 21 continues to extend, and the lower end of the isosceles trapezoidal plate 24 contacts the bottom wall of the bearing seat 16, squeezing the isosceles trapezoidal plate 24 to move upward. Through the contact between the isosceles trapezoidal plate 24 and the inclined surface, the two U-shaped plates 22 are squeezed to move outward, so that the U-shaped plate 22 is pressed against the inner wall of the nut, completing the connection between the rotating tube 21 and the nut. At this time, the outer wall of the nut can be ground by the rotation of the grinding disc 14 and the rotating motor 20. After grinding is completed, the driving end of the oil cylinder 2 19 is retracted, and under the reverse elastic force of the return spring 23, the U-shaped plate 22 moves inward, and the isosceles trapezoidal plate 24 slides downward under the action of gravity. At this point, the connection between the U-shaped plate 22 and the nut is ended, and the rotating tube 21 can be separated from the nut. At this time, the driving end of the oil cylinder 10 is retracted, driving the supporting seat 16 to move to the right. At this time, the grinding disc 14 pushes the nut into the water guide plate 31 for collection. It can be collected manually later, or another conveying mechanism, such as a conveyor belt, can be set on the lower side of the supporting seat 16 to convey the polished nuts to the outside; Furthermore, a vertically arranged motor is also provided on the workbench 1, and the motor is connected to the water guide plate 31. Under the action of the baffle 32, the nut in the water guide plate 31 will not slide out. The water guide plate 31 is driven by the motor to rotate so that the end of the water guide plate 31 faces to one side, and the nut can slide out for centralized collection.

[0020] Furthermore, a limit plate is fixed to the upper end of the isosceles trapezoidal plate 24 to prevent the isosceles trapezoidal plate 24 from falling.

[0021] A water tank is embedded in the workbench 1. The water tank is connected by a vertical tank 27 on the left and an inclined tank 30 on the right. An extension tank 29 is integrally formed on the outer wall of the vertical tank 27. An extrusion piston 28 is slidably arranged in the vertical tank 27. A horizontal plate 5 is fixed to the outer wall of the extrusion piston 28. A connecting spring 26 is fixed between the horizontal plate 5 and the inner bottom wall of the extension tank 29. When the magnet block 6 rotates downward, it touches the extrusion piston 28 and moves downward. A drain pipe 33 is connected to the outer wall of the vertical tank 27. The end of the drain pipe 33 is fixedly connected to a drainage box 34. The outer wall of the grinding disc 14 is fixedly connected to the heat conducting disc 13. An annular groove is provided on the heat conducting plate 13, and contact holes 15 are evenly distributed on the inner wall of the annular groove. A drainage port is provided on the lower side wall of the drainage box 34, which is located on the upper side of the heat conducting plate 13. A water guide plate 31 is provided on the upper side of the workbench 1, and a water guide groove 25 is provided on the water guide plate 31. The end of the water guide plate 31 is located on the upper side of the inclined groove 30. A baffle 32 with an end located outside the end of the water guide plate 31 is fixed on the upper side wall of the inclined groove 30. A heat conducting plate is fixedly embedded at the bottom of the water guide groove 25. The material of the heat conducting plate can be copper. A semiconductor refrigeration sheet is fixed on the back of the heat conducting plate. When the nut is replaced for grinding , start the motor to realize the movement of the push plate to push out the nut. When the magnet block 6 rotates to the lower side, the magnet block 6 contacts the extrusion piston 28, pushing the extrusion piston 28 to move downward, pushing the water in the vertical groove 27 from the drain pipe 33 to the drain box 34, and discharged through the drain port to contact the heat conducting plate 13. During the grinding process of the grinding disc 14, a large amount of heat will be generated due to contact friction. The heat conducting plate 13 absorbs the heat on the grinding disc 14 and conducts it out. The water in the drain box 34 is constantly exposed and contacts the heat conducting plate 13, absorbing the heat on the heat conducting plate 13 and taking it out. The cooling water does not directly contact the grinding disc 14. The contact between the grinding plate 14 and the grinding plate 14 is avoided, and the problem of sudden cooling and embrittlement of the grinding plate 14 is avoided. After absorbing the heat from the heat-conducting plate 13, the water flows out along the water guide plate 31 into the inclined groove 30. The water is quickly cooled down by the multi-stage flow of the water. At the same time, a heat-conducting plate and a semiconductor refrigeration plate that reduces the temperature of the heat-conducting plate are arranged at the bottom of the water guide groove 25, so that the temperature of the heat-conducting plate is greatly reduced. When the water flows in the water guide groove 25, the heat-conducting plate can quickly reduce the temperature of the water, so that the temperature of the water collected in the vertical groove 27 will not be too high, ensuring that the subsequent discharge to the drainage box 34 can continue to cool the heat-conducting plate 13; Furthermore, the contact holes 15 provided on the heat conducting plate 13 can increase the contact area between the water and the heat conducting plate 13 , and at the same time can prolong the stagnation time of the water, so that the water can fully absorb the heat on the heat conducting plate 13 .

[0022] Furthermore, a semiconductor refrigeration chip, also called a thermoelectric refrigeration chip, is a heat pump. Its advantage is that it has no sliding parts and is used in some situations where space is limited, reliability is high, and there is no refrigerant pollution. When direct current passes through a galvanic couple made of two different semiconductor materials in series, heat can be absorbed and released at both ends of the galvanic couple respectively, thereby achieving the purpose of cooling. The hot end of the semiconductor refrigeration chip is set to face outward, and the cold end is in contact with the heat conduction plate, thereby quickly reducing the temperature of the heat conduction plate.

[0023] Furthermore, the water guide trough 25 is wide on the right side and narrow on the left side. The wide right side design can accommodate a larger flow of water or air, while the narrow left side structure accelerates the passage of fluid, forms a pressure difference, and pushes the fluid to flow in a specific direction. This asymmetric structure can reduce the generation of vortexes and improve water guide efficiency. The narrowing on the left side matches the direction of water outlet, so that all water can flow out into the trough for collection.

[0024] Furthermore, the heat conducting plate 13 may be made of a ceramic composite material, such as silicon carbide material, which has a thermal conductivity of 270 W / m·K, high hardness, and strong wear resistance, and is suitable for high-speed grinding and high-temperature environments.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A grinding machine for producing and processing nuts, comprising a workbench (1), characterized in that: The workbench (1) is provided with a blanking table (2), and a nut discharging mechanism is provided on the blanking table (2). The workbench (1) is fixed with a support plate 1 (9) and a support plate 2 (11). The support plate 1 (9) is fixed with an oil cylinder 1 (10). The driving end of the oil cylinder 1 (10) passes through the support plate 2 (11) and is provided with a bearing seat (16) fixed thereto. The support plate 2 (11) is fixed with a driving motor (12). The outer wall of the bearing seat (16) is provided with an opening (17). A grinding disc (14) located in the opening (17) is fixed to the driving end of the motor (12), and the nut is discharged into the supporting seat (16) through the nut discharging mechanism. The grinding disc (14) contacts the nut to perform grinding. A right-angle plate (18) is fixed to the outer wall of the workbench (1), and a second oil cylinder (19) is fixed to the driving end of the second oil cylinder (19). A rotating motor (20) is fixed vertically downward to the driving end of the second oil cylinder (19), and a fixing mechanism for fixing the nut is fixed to the driving end of the rotating motor (20).

2. A grinding machine for producing nuts according to claim 1, characterized in that: The nut discharging mechanism includes a storage tank (3) fixed on the blanking table (2), the blanking table (2) is provided with a nut bearing groove and a nut lower groove (4), the blanking table (2) is provided with a through hole connected to the nut bearing groove, a push plate is slidably inserted in the through hole, a magnet plate (7) is fixed on the end of the push plate, a telescopic spring (8) is fixedly connected between the magnet plate (7) and the outer wall of the blanking table (2), an installation opening is opened on the outer wall of the blanking table (2), a motor is fixed in the installation opening, and a driving end of the motor is fixedly connected to a magnet block (6), and the magnet block (6) is intermittently arranged relative to the magnet plate (7) during the rotation process, and the push plate is pushed to move by the magnetic repulsion between the magnet block (6) and the magnet plate (7).

3. A grinding machine for producing and processing nuts according to claim 1, characterized in that: The fixing mechanism comprises a rotating tube (21) fixedly connected to the driving end of the rotating motor (20), the outer wall of the lower end of the rotating tube (21) is provided with a symmetrically arranged through-hole, a U-shaped plate (22) is slidably inserted into the through-hole, a return spring (23) is fixedly connected between the U-shaped plate (22) and the outer wall of the rotating tube (21), one end of the two U-shaped plates (22) located in the rotating tube (21) is cut with an inclined surface, and the lower end of the rotating tube (21) is slidably inserted with an isosceles trapezoidal plate (24) in contact with the inclined surface of the U-shaped plate (22), when the lower end of the rotating tube (21) is inserted into the bearing seat (16), the isosceles trapezoidal plate (24) is squeezed to move upward, and the isosceles trapezoidal plate (24) squeezes the U-shaped plate (22) outward to press against the inner wall of the nut, thereby completing the fixing of the nut.

4. A grinding machine for producing and processing nuts according to claim 3, characterized in that: An arc-shaped surface is provided on the outer wall of one end of the U-shaped plate (22) located outside the rotating tube (21).

5. A grinding machine for producing and processing nuts according to claim 2, characterized in that: A water tank is embedded in the workbench (1), and the water tank is connected by a vertical tank (27) on the left and an inclined tank (30) on the right. The outer wall of the vertical tank (27) is integrally formed with an extension tank (29). An extrusion piston (28) is slidably provided in the vertical tank (27). A horizontal plate (5) is fixed to the outer wall of the extrusion piston (28). A connecting spring (26) is fixed between the horizontal plate (5) and the inner bottom wall of the extension tank (29). When the magnet block (6) rotates downward, it touches the extrusion piston (28) and moves downward. The outer wall of the vertical tank (27) is connected to a drain pipe (3 3), the end of the drainage pipe (33) is fixedly connected to a drainage box (34), the outer wall of the grinding disc (14) is fixedly connected to a heat conducting disc (13), an annular groove is provided on the heat conducting disc (13), and the inner wall of the annular groove is provided with evenly distributed contact holes (15), the lower side wall of the drainage box (34) is provided with a drainage port located on the upper side of the heat conducting disc (13), a water guide plate (31) is provided on the upper side of the workbench (1), a water guide groove (25) is provided on the water guide plate (31), and the end of the water guide plate (31) is located on the upper side of the inclined groove (30).

6. A grinding machine for producing and processing nuts according to claim 5, characterized in that: A baffle (32) is fixed to the upper side wall of the inclined trough (30), the end of which is located outside the end of the water guide plate (31).

7. A grinding machine for producing and processing nuts according to claim 1, characterized in that: A heat conducting plate is fixedly embedded in the bottom of the water conducting groove (25), and a semiconductor refrigeration plate is fixed on the back of the heat conducting plate.

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