Single-ram coarse and fine grinding integrated grinding machine

Abstract

The application discloses a single-gantry coarse and fine grinding integrated grinding machine, which comprises a machine table, a gantry extending along the X direction is arranged on the machine table, and independently movable grinding devices are arranged on the front face and the back face of the gantry along the X direction, wherein the two grinding devices are coarse grinding devices and fine grinding devices respectively, each grinding device comprises a grinding frame, a Z-direction translation driving module and a rotatable grinding wheel, the grinding wheel is driven to ascend and descend by the Z-direction translation driving module, and a rotary cooling device is arranged on the lower portion of the grinding frame. In the application, the coarse grinding devices and the fine grinding devices are arranged on the two side faces of the gantry respectively, when the products of one carrier are coarsely ground, the products of another carrier can be finely ground at the same time, the two carriers are arranged side by side and do not interfere with each other, the size of the equipment is shortened, and the cost of the equipment is reduced. In addition, the cooling and cleaning effects are relatively ideal during the grinding process.

Description

Technical Field

[0001] This invention relates to the field of mechanical device technology, and in particular to a single-gantry integrated coarse and fine grinding mill. Background Technology

[0002] Many products require a high degree of surface finish, typically achieved using specialized grinding equipment. Generally, coarse grinding is followed by fine grinding to meet the required surface finish. Existing grinding equipment usually only performs fine or coarse grinding, requiring two machines to complete both processes. Another type of equipment uses two gantry mills, one housing the fine grinding unit and the other the coarse grinding unit. This allows for both fine and coarse grinding to be completed on a single machine, but it is larger and its application is limited.

[0003] In addition, for example, the four sides of a mobile phone screen need to be ground to ensure a smooth finish, which is done using an edge grinding machine (the grinding component is a grinding wheel). During the grinding process, the product needs to be cooled, and dust is generated during grinding, which also needs to be removed in time. Mobile phone screens have high requirements for the smoothness and surface cleanliness of the product. However, the existing cooling method used for grinding is to roughly aim a water spray head at the grinding position and spray cooling water directly. The position of the water spray head is also fixed during the grinding process. Therefore, when grinding different sides of the product, the water is sprayed into the same position, resulting in an unsatisfactory cooling effect and failure to meet the cleanliness requirements.

[0004] The purpose of this invention is to provide a single-gantry coarse and fine grinding integrated grinding machine that can overcome the above-mentioned shortcomings. Summary of the Invention

[0005] The main technical problem solved by this invention is to provide a single-gantry integrated coarse and fine grinding machine. A coarse grinding device is installed on one side of the gantry, and a fine grinding device is installed on the other side. While the product on one carrier is being coarsely ground, the product on the other carrier can be finely ground simultaneously. The two processes can proceed in parallel without interference, significantly reducing the size of the equipment and lowering its cost. Furthermore, the cooling and cleaning effects during the grinding process are quite ideal.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: providing a single-gantry coarse and fine grinding integrated grinding machine, the grinding machine including a machine base, the machine base being supported by a gantry extending along the X direction, the front and back of the gantry being respectively equipped with independent grinding devices that can move along the X direction, the two grinding devices being a coarse grinding device and a fine grinding device, each grinding device including a grinding frame, a Z-axis translation drive module and a rotatable grinding wheel, the grinding wheel being driven to rise and fall by the Z-axis translation drive module, and a rotary cooling device being installed at the lower part of the grinding frame;

[0007] The rotary cooling device includes a support base, a connecting ring, a pipe seat, a fixing ring, a clearance ring, a sealing ring, a dust extraction sealing plate, an upper cooling assembly, and a lower cooling assembly. A rotary drive assembly capable of driving the connecting ring to rotate is mounted on the support base. The pipe seat, the clearance ring, the dust extraction sealing plate, the upper cooling assembly, and the lower cooling assembly are fixedly connected sequentially from top to bottom below the connecting ring. A gap for product insertion is provided between the upper and lower cooling assemblies.

[0008] The external water flows through the water passages in the connecting ring, pipe seat, fixing ring, clearance ring and dust extraction sealing plate, and then is sprayed to the grinding position through the upper cooling assembly and / or lower cooling assembly.

[0009] The external air passes through the connecting ring, pipe seat, fixing ring, clearance ring and dust extraction sealing plate, and then is sprayed to the grinding position through the upper cooling assembly and / or lower cooling assembly.

[0010] The sealing ring is located on the outer periphery of the clearance ring, and the sealing ring is fixedly connected to a dust extraction pipe. The upper part of the dust extraction pipe passes through the support base and is fixedly connected to the support base.

[0011] The machine tool is equipped with two carriers that can translate along the Y direction;

[0012] The machine is equipped with a feeding unit on one side and a discharging unit on the other side.

[0013] Furthermore, both the loading unit and the unloading unit include a crossbeam, a material picking component, a translation drive module that can drive the material picking component to move along the crossbeam, and a lifting drive module that can drive the material picking component to move up and down. The material picking component is driven to position to pick up or unload materials through the translation drive module and the lifting drive module.

[0014] Furthermore, the driving mechanism that can drive each grinding device to move along the X direction is an X-direction translation drive module, and the X-direction translation drive module and the Z-direction translation drive module are servo motor driven lead screw and nut transmission structures.

[0015] Furthermore, the fixing ring is fixed below the support base and located on the outer periphery of the pipe seat;

[0016] The fixed ring is provided with an air inlet and a water inlet. The pipe seat, the clearance ring and the dust extraction sealing plate are all provided with water passages and air passages. The water passages and air passages are connected to the upper cooling assembly and the lower cooling assembly.

[0017] The sealing ring has a dust extraction port, which is connected to the dust extraction pipeline.

[0018] Furthermore, the rotary drive assembly includes a rotary drive motor, a pinion gear, and a large gear ring. The power output end of the rotary drive motor is connected to the pinion gear, which meshes with the large gear ring. The large gear ring is located above the connecting ring, and the two are fixedly connected.

[0019] Furthermore, the outer circumferential surface of the pipe seat is recessed radially toward the center to form an upper annular groove and a lower annular groove. The upper annular groove is connected to the water inlet of the fixed ring, and the lower annular groove is connected to the air inlet of the fixed ring.

[0020] The bottom of the upper annular groove is connected to a water passage, and the lower end of the water passage is connected to a water passage located inside the avoidance ring; the bottom of the lower annular groove is connected to an air passage, and the lower end of the air passage is connected to an air passage located inside the avoidance ring.

[0021] The water passage in the avoidance ring is connected to the water passage in the dust extraction sealing plate; the air passage in the avoidance ring is connected to the air passage in the dust extraction sealing plate.

[0022] Furthermore, the upper cooling assembly includes an upper cooling seat and an upper cooling plate. The upper cooling plate is fixedly installed on one side of the upper cooling seat. An upper water chamber and an upper air chamber are formed between the upper cooling seat and the upper cooling plate. The upper water chamber is connected to the water passage in the dust extraction sealing plate, and the upper air chamber is connected to the air passage in the dust extraction sealing plate.

[0023] The upper cooling plate has an upper water outlet, which is connected to the upper water chamber; the upper cooling plate has an upper air outlet slot, which is connected to the upper air chamber.

[0024] Furthermore, the lower cooling assembly includes a lower cooling base, a lower bottom plate, and a lower cooling plate. The lower bottom plate is fixedly installed at the bottom of the lower cooling base, and the lower cooling plate is installed on one side of the lower cooling base. The lower cooling base has a first lower air chamber, and the lower cooling plate has a second lower air chamber. The first lower air chamber and the second lower air chamber are connected. The upper surface of the lower cooling plate is provided with a lower air outlet groove, and the lower air outlet groove is connected to the second lower air chamber.

[0025] Furthermore, both the upper and lower air outlet slots are arc-shaped slots that are inclined toward the grinding position and surround the grinding position.

[0026] Furthermore, the grinding wheel of the coarse grinding device has a larger particle size than the grinding wheel of the fine grinding device.

[0027] The beneficial effects of this invention are:

[0028] In the grinding machine of the present invention, a coarse grinding device is installed on one side of the gantry and a fine grinding device is installed on the other side. When the product of one carrier is coarsely ground, the product of the other carrier can be finely ground at the same time. The two are carried out in parallel without interference, which greatly shortens the size of the equipment and reduces the cost of the equipment.

[0029] Furthermore, the cooling and cleaning effects during the grinding process are quite ideal, as detailed below:

[0030] The rotary cooling device of this invention features an ingenious structural design. Through the inclusion of a support base, connecting ring, pipe base, fixing ring, clearance ring, sealing ring, dust extraction sealing plate, upper cooling assembly, and lower cooling assembly, the device can effectively clean impurities generated during grinding, eliminating the need for a separate cleaning station. This ensures both grinding quality and cleaning effectiveness, improving production efficiency and cycle time. Furthermore, the device is designed to rotate. When grinding one side of a product and then moving on to an adjacent side, the rotary drive mechanism rotates the connecting ring and its lower components 90° to align with the side being ground. Similarly, multiple sides of the product can be ground sequentially. Therefore, this device always maintains alignment with the grinding position, achieving ideal cooling and cleaning effects when grinding different sides of the product. Moreover, the rational design of each component ensures that the water spraying, air spraying, and dust extraction functions remain unaffected during rotation, consistently achieving ideal cooling and cleaning results.

[0031] The rotary cooling device in this invention optimizes the shape of the upper and lower air outlet slots, ensuring that the sprayed water and air primarily direct impurities and water generated during the grinding process towards the side closest to the grinding wheel, preventing them from spreading outwards towards the product. Simultaneously, the external dust extraction device generates negative pressure, allowing for the unified collection of impurities and cooling water produced during the grinding process. This achieves a relatively ideal cooling and cleaning effect.

[0032] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of the present invention;

[0034] Figure 2 This is a schematic diagram of the grinding device of the present invention;

[0035] Figure 3 This is one of the schematic diagrams of the present invention;

[0036] Figure 4 This is the second schematic diagram of the present invention;

[0037] Figure 5 This is a side view of the present invention;

[0038] Figure 6 yes Figure 5 A sectional view along the AA direction;

[0039] Figure 7 This is a top view of the present invention;

[0040] Figure 8 yes Figure 7 A sectional view along the BB direction;

[0041] Figure 9 yes Figure 7 A cross-sectional view along the CC direction;

[0042] Figure 10 yes Figure 7 A sectional view along the DD direction;

[0043] Figure 11 This is a schematic diagram of the structure of the upper cooling component of the present invention;

[0044] Figure 12 This is a schematic diagram of the upper cooling plate of the present invention;

[0045] Figure 13 This is a structural schematic diagram of the lower cooling assembly of the present invention;

[0046] The parts in the attached diagram are labeled as follows:

[0047] Rotary cooling device 1, support base 11, rotary drive assembly 111, rotary drive motor 1111, pinion 1112, large gear ring 1113, bearing 112, connecting ring 12, pipe seat 13, water passage 131, air passage 132, sealing ring 133, upper annular groove 134, lower annular groove 135, fixing ring 14, air inlet 141, water inlet 142, clearance ring 15, through hole 151, sealing ring 16. Dust extraction pipe 161, dust extraction port 162, dust extraction sealing plate 17. Upper cooling assembly 18. Upper cooling base 181, upper cooling plate 182, upper water outlet 1821, upper air outlet 1822, upper water chamber 183, upper air chamber 184. Lower cooling assembly 19. Lower cooling base 191, first lower air chamber 1911, lower base plate 192, lower cooling plate 193, second lower air chamber 1931, lower air outlet 1932;

[0048] Gap 10, grinding wheel 20;

[0049] 2. Machine base; 3. Gantry; 4. Coarse grinding device; 41. Grinding frame; 42. Electric spindle; 43. Z-axis translation drive module; 5. Fine grinding device; 6. Carrier; 7. Loading unit; 71. Crossbeam; 72. Material handling assembly; 73. Lifting drive module; 8. Unloading unit. Detailed Implementation

[0050] The following specific embodiments illustrate the detailed implementation of the present invention. Those skilled in the art can easily understand the advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented in other different ways, that is, different modifications and changes can be made without departing from the scope disclosed in the present invention.

[0051] The descriptions of positions such as up, down, left, and right in this embodiment are based on the orientation shown in the accompanying drawings, have no special meaning, and are not intended to limit the scope of protection of this invention. The arrows in the accompanying drawings indicate the flow direction of products on the production line.

[0052] Example: A single-gantry integrated coarse and fine grinding mill, such as Figures 1 to 13 As shown, the grinding machine includes a machine base 2, on which a gantry 3 extending along the X direction is mounted. The front and back of the gantry are respectively equipped with independent grinding devices that can move along the X direction. The two grinding devices are a coarse grinding device 4 and a fine grinding device 5. Each grinding device includes a grinding frame 41, a Z-axis translation drive module 43 and a rotatable grinding wheel 20. The grinding wheel is driven to rise and fall by the Z-axis translation drive module. A rotary cooling device 1 is installed at the lower part of the grinding frame.

[0053] The rotary cooling device includes a support base 11, a connecting ring 12, a pipe seat 13, a fixing ring 14, a clearance ring 15, a sealing ring 16, a dust extraction sealing plate 17, an upper cooling assembly 18, and a lower cooling assembly 19. A rotary drive assembly 111 capable of driving the connecting ring to rotate is installed on the support base. The pipe seat 13, the clearance ring 15, the dust extraction sealing plate 17, the upper cooling assembly 18, and the lower cooling assembly 19 are fixedly connected below the connecting ring and from top to bottom. A gap 10 for product insertion is provided between the upper cooling assembly and the lower cooling assembly.

[0054] The external water flows through the water passages in the connecting ring, pipe seat, fixing ring, clearance ring and dust extraction sealing plate, and then is sprayed to the grinding position through the upper cooling assembly and / or lower cooling assembly.

[0055] The external air passes through the connecting ring, pipe seat, fixing ring, clearance ring and dust extraction sealing plate, and then is sprayed to the grinding position through the upper cooling assembly and / or lower cooling assembly.

[0056] The sealing ring 16 is located on the outer periphery of the clearance ring 15. The sealing ring 16 is fixedly connected to a dust extraction pipe 161. The upper part of the dust extraction pipe 161 passes through the support base 11 and is fixedly connected to the support base.

[0057] The machine tool is equipped with two carriers 6 that can translate along the Y direction; the driving mechanism for driving the carriers to translate along the Y direction can be a transmission structure of servo motor and lead screw nut, which is existing technology and will not be described in detail.

[0058] The machine is equipped with a feeding unit 7 on one side and a discharging unit 8 on the other side.

[0059] In this embodiment, an electric spindle 42 is mounted on the upper part of the grinding wheel 20, and the electric spindle drives its rotation.

[0060] In this embodiment, as Figure 1 As shown, both the loading unit 7 and the unloading unit 8 include a crossbeam 71, a material picking component 72, a translation drive module that can drive the material picking component to move along the crossbeam, and a lifting drive module 73 that can drive the material picking component to rise and fall. The material picking component is driven to position to pick up or unload materials through the translation drive module and the lifting drive module.

[0061] In this embodiment, the driving mechanism capable of driving each grinding device to move along the X direction is an X-axis translation drive module (not shown in the figure). The X-axis translation drive module and the Z-axis translation drive module are servo motor driven lead screw and nut transmission structures. This is prior art, so it will not be described in detail.

[0062] like Figures 3 to 13 As shown, the fixing ring 14 is fixed below the support base 11 and located on the outer periphery of the pipe seat 13;

[0063] like Figure 4 As shown, the fixing ring 14 is provided with an air inlet 141 and a water inlet 142, as... Figures 6 to 10 As shown, the pipe seat 13, the clearance ring 15 and the dust extraction sealing plate 17 are all provided with water passage 131 and air passage 132. The water passage and air passage are connected to the upper cooling assembly and the lower cooling assembly. External water and air are sprayed towards the grinding position near the grinding wheel through the upper cooling assembly and the lower cooling assembly.

[0064] The sealing ring has a dust extraction port 162, which is connected to the dust extraction pipe 161.

[0065] In this embodiment, as Figure 3As shown, the rotary drive assembly 111 includes a rotary drive motor 1111, a pinion 1112, and a large gear ring 1113. The power output end of the rotary drive motor is connected to the pinion, which meshes with the large gear ring. The large gear ring is located above the connecting ring, and the two are fixedly connected. The rotary drive motor drives the pinion to rotate, and since the pinion meshes with the large gear ring, the large gear ring rotates. Because the large gear ring and the connecting ring are fixedly connected, the connecting ring rotates, thereby causing the component fixed below the connecting ring to rotate as well.

[0066] Since the support base is fixed and the retaining ring is fixedly installed below the support base, the retaining ring is also fixed. Similarly, the dust extraction pipe is fixedly connected to the support base, and the dust extraction pipe is also fixedly connected to the sealing ring, so the sealing ring and the dust extraction pipe are also fixed.

[0067] In this embodiment, as Figure 6 As shown, bearings 112 that serve as rotational supports are installed between the support base 11 and the connecting ring 12, and between the clearance ring 15 and the sealing ring 16.

[0068] In this embodiment, as Figure 6 As shown, a sealing ring 133 is installed between the pipe seat 13 and the fixing ring 14 to provide a sealing effect.

[0069] In this embodiment, as Figure 6 As shown, the outer circumferential surface of the pipe seat 13 is recessed radially toward the center to form an upper annular groove 134 and a lower annular groove 135. The upper annular groove 134 is connected to the water inlet 142 of the fixed ring 14, and the lower annular groove is connected to the air inlet 141 of the fixed ring 14.

[0070] The bottom of the upper annular groove is connected to a water passage, and the lower end of the water passage is connected to a water passage located inside the avoidance ring; the bottom of the lower annular groove is connected to an air passage, and the lower end of the air passage is connected to an air passage located inside the avoidance ring.

[0071] The water passage within the clearance ring is connected to the water passage within the dust extraction sealing plate; the air passage within the clearance ring is connected to the air passage within the dust extraction sealing plate. In this embodiment, the radial depth of the upper annular groove is greater than the radial depth of the lower annular groove, thus facilitating the design of the water and air passages, preventing them from interfering with each other.

[0072] In this embodiment, as Figures 7 to 9As shown, the upper cooling assembly 18 includes an upper cooling seat 181 and an upper cooling plate 182. The upper cooling plate is fixedly installed on one side of the upper cooling seat. An upper water chamber 183 and an upper air chamber 184 are formed between the upper cooling seat and the upper cooling plate. The upper water chamber is connected to the water passage in the dust extraction sealing plate, and the upper air chamber is connected to the air passage in the dust extraction sealing plate.

[0073] The upper cooling plate has an upper water outlet 1821, which is connected to the upper water cavity; the upper cooling plate has an upper air outlet 1822, which is connected to the upper air cavity.

[0074] In this embodiment, as Figure 7 and Figure 10 As shown, the lower cooling assembly 19 includes a lower cooling seat 191, a lower base plate 192, and a lower cooling plate 193. The lower base plate is fixedly installed at the bottom of the lower cooling seat, and the lower cooling plate is installed on one side of the lower cooling seat. The lower cooling seat has a first lower air chamber 1911, and the lower cooling plate has a second lower air chamber 1931. The first lower air chamber and the second lower air chamber are connected. The upper surface of the lower cooling plate is provided with a lower air outlet groove 1932, which is connected to the second lower air chamber.

[0075] The accompanying drawings of this embodiment illustrate an example where the upper cooling component sprays water and air, while the lower cooling component sprays air. However, this is not the only example; both the upper and lower cooling components can spray water and air simultaneously, or the upper cooling component can only spray air while the lower cooling component sprays both water and air. The water is primarily used for grinding and cooling, while the air is mainly used to suppress the sprayed water. Therefore, at least one of the upper or lower cooling components needs to spray water. To ensure product cleanliness, spraying air from both the upper and lower components yields better results.

[0076] In this embodiment, as Figures 11 to 13 As shown, both the upper air outlet slot 1822 and the lower air outlet slot 1932 are arc-shaped slots that slope towards and surround the grinding position. The shapes of the upper and lower air outlet slots are optimized so that the sprayed water and air primarily direct impurities and water generated during the grinding process towards the side closest to the grinding wheel, preventing them from spreading outwards. Simultaneously, the external dust extraction device generates negative pressure, which collects impurities and cooling water generated during the grinding process. This achieves a relatively ideal cooling and cleaning effect.

[0077] In this embodiment, as Figure 6 As shown, the clearance ring 15 has multiple through holes 151, which are connected to the dust extraction port 162. The multiple through holes serve two purposes: firstly, to reduce weight, and secondly, to facilitate the removal of water, air, impurities, etc., generated during grinding.

[0078] The working principle and process of this invention:

[0079] Two carriers, A and B, are defined. The first product is picked up by the loading unit and placed on carrier A. Carrier A moves directly under the coarse grinding device for grinding, first coarsely grinding one side of the product. During grinding, a rotary cooling device operates. Then, the coarse grinding device grinds the other side of the product. The rotary drive assembly drives the connecting ring and all components fixed below it to rotate, ensuring that water and air are always sprayed onto the grinding position until all four sides are finished. Afterward, the fine grinding device moves into position to finely grind the product on carrier A, following a similar process to coarse grinding. While the fine grinding device is finely grinding the product on carrier A, the coarse grinding device moves above carrier B to coarsely grind the product on carrier B. After the product on carrier A is finely ground, the unloading unit removes it, and the above process is repeated.

[0080] The working process of the rotary cooling device is as follows:

[0081] A rotary cooling device is installed at the grinding unit of the grinding equipment. The grinding wheel extends into the device, and the product to be ground extends into the gap. Figure 4 and Figure 6 As shown, external water enters the upper annular groove of the pipe seat through the inlet 142, and the water flow direction is as follows. Figure 8 As shown by the dashed arrow, water flows through the water passages provided in the pipe seat, the clearance ring, and the dust extraction sealing plate, then enters the upper water chamber, and finally exits through the upper outlet (e.g., Figure 11 and 12 (As shown) The air is sprayed onto the grinding position to cool the grinding wheel and the product. Similarly, external gas enters the lower annular groove of the pipe seat through the air inlet 141. A portion of it passes through the air passage provided in the pipe seat, the clearance ring, and the dust extraction sealing plate, then enters the upper air chamber, and finally exits through the upper air outlet groove (as shown). Figure 7 and 9 As shown, the path of this gas is as follows: Figure 9 (As shown by the dotted line) The air is sprayed onto the grinding position to suppress impurities and moisture on the surface of the product; similarly, another part of the air passes through the air passage provided in the pipe seat, the avoidance ring, and the dust extraction sealing plate, then enters the first and second lower air chambers, and finally exits through the lower air outlet slot (as shown by the dotted line). Figure 7 and 10 As shown, the path of this gas is as follows: Figure 10(As shown by the dotted line) The air is sprayed onto the grinding position to suppress impurities and moisture on the lower surface of the product. Because the air from the upper and lower exhaust ducts is sprayed obliquely inwards towards the grinding position, impurities generated during the grinding process are confined to the grinding position (the side closest to the grinding wheel, or the inner side), preventing them from splashing or flowing to the outer surface of the product and avoiding scratches and contamination. The sprayed water and air, as well as impurities generated during the grinding process, are collected in the dust extraction pipeline through the through-hole of the avoidance ring and the dust extraction port of the sealing ring by an external dust extraction device.

[0082] The water mentioned above is mainly used for cooling the grinding area (including cooling the grinding wheel and the product), while the air mainly serves a cleaning function.

[0083] Since all four sides of a product (such as a mobile phone screen) need to be ground, the device is designed to rotate. When one side is finished and the next adjacent side needs to be ground, the rotary drive motor drives the pinion to rotate. Because the pinion meshes with the large gear ring, the component fixed to the lower part of the large gear ring rotates together, causing the large gear ring and the component mounted below it to rotate 90° as a whole, aligning with the side of the product being ground. Similarly, multiple sides of the product can be ground sequentially. Therefore, this device can always be aligned with the grinding position, achieving ideal cooling and cleaning effects when grinding different sides of the product.

[0084] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure made using the content of the present invention specification and drawings, or directly or indirectly applied to other related technical fields, is similarly included within the patent protection scope of the present invention.

Claims

1. A single-gantry integrated coarse and fine grinding mill, characterized in that: The grinding machine includes a machine base (2), on which a gantry (3) extending along the X direction is mounted. The front and back of the gantry are respectively equipped with independent grinding devices that can move along the X direction. The two grinding devices are a coarse grinding device (4) and a fine grinding device (5). Each grinding device includes a grinding frame (41), a Z-axis translation drive module (43), and a rotatable grinding wheel (20). The grinding wheel is driven to rise and fall by the Z-axis translation drive module. A rotary cooling device (1) is installed at the lower part of the grinding frame. The rotary cooling device includes a support base (11), a connecting ring (12), a pipe seat (13), a fixing ring (14), a clearance ring (15), a sealing ring (16), a dust extraction sealing plate (17), an upper cooling assembly (18), and a lower cooling assembly (19). A rotary drive assembly (111) capable of driving the connecting ring to rotate is installed on the support base. The pipe seat (13), the clearance ring (15), the dust extraction sealing plate (17), the upper cooling assembly (18), and the lower cooling assembly (19) are fixedly connected below the connecting ring and from top to bottom. A gap (10) for product insertion is provided between the upper cooling assembly and the lower cooling assembly. The sealing ring (16) is located on the outer periphery of the clearance ring (15). The sealing ring (16) is fixedly connected to a dust extraction pipe (161). The upper part of the dust extraction pipe (161) passes through the support base (11) and is fixedly connected to the support base. The machine is equipped with two carriers (6) that can translate along the Y direction; A feeding unit (7) is installed on one side of the machine, and a discharging unit (8) is installed on the other side. The fixing ring (14) is fixed below the support base (11) and located on the outer periphery of the pipe base (13); The fixed ring (14) is provided with an air inlet (141) and a water inlet (142). The pipe seat (13), the clearance ring (15) and the dust extraction sealing plate (17) are all provided with a water passage (131) and an air passage (132). The water passage and the air passage are connected to the upper cooling assembly and the lower cooling assembly. The sealing ring has a dust extraction port (162), which is connected to the dust extraction pipe (161); The rotary drive assembly (111) includes a rotary drive motor (1111), a pinion (1112), and a large gear ring (1113). The power output end of the rotary drive motor is connected to the pinion, the pinion meshes with the large gear ring, and the large gear ring is located above the connecting ring and the two are fixedly connected. The upper cooling assembly (18) includes an upper cooling seat (181) and an upper cooling plate (182). The upper cooling plate is fixedly installed on one side of the upper cooling seat. An upper water chamber (183) and an upper air chamber (184) are formed between the upper cooling seat and the upper cooling plate. The upper water chamber is connected to the water passage in the dust extraction sealing plate, and the upper air chamber is connected to the air passage in the dust extraction sealing plate.

2. The single-gantry coarse and fine grinding integrated grinding machine according to claim 1, characterized in that: The loading unit (7) and unloading unit (8) both include a crossbeam (71), a material picking component (72), a translation drive module that can drive the material picking component to move along the crossbeam, and a lifting drive module (73) that can drive the material picking component to rise and fall. The material picking component is driven to the position to pick up or unload materials through the translation drive module and the lifting drive module.

3. The single-gantry coarse and fine grinding integrated grinding machine according to claim 1, characterized in that: The driving mechanism that can drive each grinding device to move along the X direction is an X-direction translation drive module. The X-direction translation drive module and the Z-direction translation drive module are servo motor driven lead screw and nut transmission structures.

4. The single-gantry coarse and fine grinding integrated grinding machine according to claim 1, characterized in that: The outer circumferential surface of the pipe seat (13) is recessed radially toward the center to form an upper annular groove (134) and a lower annular groove (135). The upper annular groove (134) is connected to the water inlet (142) of the fixed ring (14), and the lower annular groove is connected to the air inlet (141) of the fixed ring (14). The bottom of the upper annular groove is connected to a water passage, and the lower end of the water passage is connected to a water passage located inside the avoidance ring; the bottom of the lower annular groove is connected to an air passage, and the lower end of the air passage is connected to an air passage located inside the avoidance ring. The water passage in the avoidance ring is connected to the water passage in the dust extraction sealing plate; the air passage in the avoidance ring is connected to the air passage in the dust extraction sealing plate.

5. The single-gantry coarse and fine grinding integrated grinding machine according to claim 1, characterized in that: The upper cooling plate is provided with an upper water outlet (1821), which is connected to the upper water chamber; the upper cooling plate is provided with an upper air outlet slot (1822), which is connected to the upper air chamber.

6. The single-gantry coarse and fine grinding integrated grinding machine according to claim 5, characterized in that: The lower cooling assembly (19) includes a lower cooling seat (191), a lower base plate (192), and a lower cooling plate (193). The lower base plate is fixedly installed at the bottom of the lower cooling seat, and the lower cooling plate is installed on one side of the lower cooling seat. The lower cooling seat has a first lower air chamber (1911), and the lower cooling plate has a second lower air chamber (1931). The first lower air chamber and the second lower air chamber are connected. The upper surface of the lower cooling plate is provided with a lower air outlet groove (1932), and the lower air outlet groove is connected to the second lower air chamber.

7. The single-gantry coarse and fine grinding integrated grinding machine according to claim 6, characterized in that: Both the upper air outlet groove (1822) and the lower air outlet groove (1932) are arc-shaped grooves that are inclined toward the grinding position and surround the grinding position.

8. The single-gantry coarse and fine grinding integrated grinding machine according to claim 1, characterized in that: The grinding wheel of the coarse grinding device has a larger particle size than the grinding wheel of the fine grinding device.

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