Full-automatic chemical grinding machine

Abstract

The invention relates to the technical field of grinding machines, in particular to a full-automatic chemical grinding machine. According to the technical scheme, the full-automatic chemical grinding machine comprises a support and further comprises a lifting assembly, an overturning assembly and a grinding table, the lifting assembly is installed on the support, the overturning assembly is installed at the lifting end of the lifting assembly, and a feeding barrel is installed at the rotating end of the overturning assembly; and an automatic lifting type grinding mechanism is arranged above the grinding table, and the automatic lifting type grinding mechanism is installed on the support. The automatic lifting feeding function is achieved, the purposes of improving the working efficiency and reducing the labor cost are achieved, the relative distance between the grinding head and the grinding table can be automatically adjusted, and the requirements for different particle sizes of different materials are met.

Description

Technical Field

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

[0002] A grinder is a machine that uses a grinding tool coated with or embedded with abrasives to grind the surface of a workpiece. It is used to grind and crush various processing materials.

[0003] Most of the chemical solid grinding machines currently used use manual feeding. When the grinding machine is working, the solid raw materials need to be manually lifted and then poured into the grinding machine inlet. During the grinding process, the material needs to be continuously fed, which is time-consuming and labor-intensive. In addition, the contact time between personnel and materials is long, which increases the risk of personnel harm. In addition, the particle size processed by the chemical solid grinding machine currently used is relatively single, and the size of the processed particles cannot be adjusted according to needs, resulting in low processing efficiency.

[0004] The patent with publication number CN116273319A discloses a chemical raw material grinding equipment for chemical industry, including a casing, a grinding roller and a feed port, wherein the grinding roller is arranged at the bottom of the inner wall of the casing, the feed port is arranged at the top surface of the casing, a circular hole is opened on the top of the casing, and an anti-blocking device, a de-adhesion device, an anti-dust device and a throwing device are also included, wherein the anti-blocking device is arranged at the top of the inner wall of the casing, the de-adhesion device is arranged at the bottom of the anti-blocking device, the anti-dust device is arranged at the bottom of the de-adhesion device, and the throwing device is arranged at the bottom of the inner wall of the casing, wherein the anti-blocking device includes an L-shaped rod, the L-shaped rod is fixed to the right side of the casing, and a motor driving device is fixed at one end of the L-shaped rod away from the casing. The present invention allows the rotating fan to beat the agglomerated chemical raw materials so that the agglomerated chemical raw materials will not block the feed port, thereby avoiding the problem of the agglomerated chemical raw materials blocking the feed port.

[0005] The patent with the publication number CN219308968U discloses a chemical raw material grinding device, which relates to the technical field of grinding equipment. The utility model includes a grinder, which includes a grinding head, and also includes: a cleaning component installed on the grinder, the cleaning component includes a contact end and a cleaning end, the cleaning end is provided with an opening, the opening faces the grinding head, and the cleaning component is used to separate the dust on the grinding head from the grinding head. The utility model installs the cleaning component on the grinder, and the cleaning end of the cleaning component faces the grinding head, so that the cleaning component cleans the grinding head, and the driving member is connected to the driving shaft of the grinding head through a connecting member. When the grinding head is working, the driving member is driven to work through the connecting member, so that the driving member drives the cleaning member to work. When in use, the grinding head is cleaned by the cleaning component, and the driving member is driven to work through the driving shaft of the grinding head, thereby saving energy. However, the above-mentioned public patent does not solve the problem that the particle size processed by the chemical solid grinder is relatively single, and cannot be adaptively adjusted according to different raw material requirements. Summary of the invention

[0006] The present invention provides a fully automatic chemical grinding machine, which solves the problems that the chemical solid grinding machine used in the prior art can process particles of a relatively single size, cannot adjust the size of the processed particles according to needs, and has low processing efficiency.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0008] A fully automatic industrial grinding machine comprises a bracket, a lifting assembly, a flip assembly and a grinding table, wherein the lifting assembly is mounted on the bracket, the flip assembly is mounted on the lifting end of the lifting assembly, and a feeding bucket is mounted on the rotating end of the flip assembly;

[0009] An automatic lifting and lowering grinding mechanism is arranged above the grinding table, and the automatic lifting and lowering grinding mechanism is installed on the bracket.

[0010] Furthermore, the lifting assembly is a feeding hydraulic cylinder, and a feeding bearing seat assembly is installed at the bottom of the piston rod of the feeding hydraulic cylinder through a fixed frame. The feeding barrel is rotatably installed on the feeding bearing seat assembly through a rotating shaft. The flipping assembly includes a feeding servo motor and a feeding gear set. A feeding servo motor is installed on the fixed frame of the feeding bearing seat assembly, and the feeding servo motor is connected to the rotating shaft of the feeding barrel through a feeding gear set.

[0011] Furthermore, the grinding table is installed on the lower platform, a positioning device is provided below the automatic lifting and lowering grinding device, the positioning device is fixed on the lower platform, and a powder receiving port is provided at the bottom of the lower platform.

[0012] Furthermore, the automatic lifting and lowering grinding mechanism includes a grinding head, a connecting rod, a bearing seat assembly, a transmission gear, a servo motor, a liftable bracket and a hydraulic cylinder assembly. The hydraulic cylinder assembly is installed on the bracket, the liftable bracket is installed on the lifting end of the hydraulic cylinder assembly, the servo motor is installed on the liftable bracket, the connecting rod is rotatably installed on the liftable bracket through the bearing seat assembly, the top end of the connecting rod is fixedly connected to the transmission gear, the output end of the servo motor is meshed with the transmission gear through a gear, and the grinding head is fixedly connected to the bottom of the connecting rod.

[0013] Furthermore, a positioning cylinder is fixedly connected to the center of the bottom of the grinding head, and four positioning grooves are evenly distributed on the outer ring surface of the positioning cylinder.

[0014] Furthermore, the positioning device includes a positioning plate, a bearing assembly and a support plate, the support plate is fixedly connected to the lower platform, the bearing assembly is mounted on the support plate, and the positioning plate is rotatably mounted on the bearing assembly.

[0015] Furthermore, a positioning block is evenly distributed and fixed on the positioning plate along the central circle, and the positioning block matches the positioning groove of the positioning cylinder.

[0016] Furthermore, it also includes a dust cover and a residue cleaning assembly, wherein the dust cover is installed on the top of the lower platform, the dust cover covers the top of the grinding table and the grinding head, the connecting rod passes through the dust cover, a feed port is provided on the top of the dust cover, and an annular grinding plate is rotatably provided on the grinding surface of the grinding table;

[0017] The residual cleaning assembly comprises an installation box, a slide rail, a sliding platform, a connecting frame, a support rod, a first scraper, a second scraper, a connecting seat and a telescopic driving member, the installation box is installed on one side of the dust cover, the dust cover is connected to the space in the installation box, the slide rail is in an inclined state, the slide rail is installed in the installation box, the sliding platform is slidably installed in the slide rail, the connecting frame is fixedly connected to the sliding platform, the support rod is rotatably installed on the connecting frame, the lower end of the first scraper is hinged to the lower end of the support rod, the upper end of the second scraper is hinged to the upper end of the support rod, the connecting seat is rotatably installed on the connecting frame, and the telescopic driving member is provided with two, and the two fixed ends of the two telescopic driving members are symmetrically fixed to the connecting seat, the telescopic end of the first telescopic driving member is hinged to the upper part of the first scraper, and the telescopic end of the second telescopic driving member is hinged to the lower part of the second scraper.

[0018] Furthermore, it also includes a scraper assembly, which includes a lifting drive member and a third scraper. The lifting drive member is installed on the inner top of the dust cover, and the third scraper is installed on the bottom of the lifting end of the lifting drive member.

[0019] Furthermore, a self-closing baffle is rotatably mounted on the bottom of the feed port via a torsion spring shaft, and a bar magnet is embedded on the edge of the self-closing baffle.

[0020] The positive effects of the present invention are:

[0021] 1. The automatic feeding device can realize the automatic lifting and feeding function, thus improving the working efficiency of the grinder and reducing labor costs;

[0022] 2. It can realize remote automatic feeding, and can add materials in real time during the operation of the grinder, reducing the harm of chemical powder to workers during the grinding process;

[0023] 3. The relative distance between the grinding head and the grinding table can be automatically adjusted to meet the processing requirements of different sizes of solid particles;

[0024] 4. The self-sealing feed port automatically closes after the feeding is completed, reducing the harm of chemical powder to the external environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of a fully automatic chemical grinding machine in Example 1 of the present invention;

[0026] Figure 2 A cross-sectional view of a fully automatic chemical grinding machine in Example 1 of the present invention;

[0027] Figure 3 It is a schematic diagram of the feed port structure in the present invention;

[0028] Figure 4 It is a schematic diagram of the structure of the grinding head in the present invention;

[0029] Figure 5 It is a schematic diagram of the structure of the positioning device in the present invention;

[0030] Figure 6 This is a schematic diagram of the overall structure of a fully automatic chemical grinding machine in Example 2 of the present invention;

[0031] Figure 7 This is a schematic diagram of the structure of the dust cover in Example 2 of the present invention;

[0032] Figure 8 This is a schematic diagram of the first structure of the grinding table in Example 2 of the present invention;

[0033] Fig. 9 This is a schematic diagram of the second structure of the grinding table in Example 2 of the present invention;

[0034] Fig.10 This is a schematic diagram of the first structure of the residue cleaning component in the present invention;

[0035] Fig.11 This is a second structural schematic diagram of the residue cleaning component in the present invention;

[0036] Fig.12 This is a third structural schematic diagram of the residue cleaning component in the present invention;

[0037] Fig.13 This is a fourth structural schematic diagram of the residue cleaning component in the present invention;

[0038] Fig.14 It is a schematic diagram of the structure of the scraper assembly in the present invention;

[0039] In the figure: 1, bracket; 2, feeding hydraulic cylinder; 3, piston rod; 4, feeding bearing seat assembly; 5, feeding servo motor; 6, feeding gear set; 7, feeding barrel; 8, feeding port; 9, dust cover; 10, grinding table; 1001, annular grinding plate; 11, automatic lifting and lowering grinding mechanism; 12, positioning device; 13, lower platform; 14, powder receiving port; 701, self-closing baffle; 702, bar magnet; 1101, grinding head; 1102, connecting rod; 1103, bearing seat assembly; 1104, transmission gear; 11 05, servo motor; 1106, liftable bracket; 1107, hydraulic cylinder assembly; 1108, positioning cylinder; 1201, positioning plate; 1202, bearing assembly; 1203, support plate; 1204, positioning block; 1501, installation box; 1502, slide rail; 1503, sliding table; 1504, connecting frame; 1505, support rod; 1506, first scraper; 1507, second scraper; 1508, connecting seat; 1509, telescopic drive member; 1601, lifting drive member; 1602, third scraper. DETAILED DESCRIPTION

[0040] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] Example 1

[0042] Combination Figure 1-5 As shown, a fully automatic industrial grinding machine includes a bracket 1, a lifting assembly, a flip assembly and a grinding table 10, the lifting assembly is installed on the bracket 1, the flip assembly is installed on the lifting end of the lifting assembly, and a feeding bucket 7 is installed on the rotating end of the flip assembly;

[0043] An automatic lifting and lowering grinding mechanism 11 is arranged above the grinding table 10 , and the automatic lifting and lowering grinding mechanism 11 is installed on the bracket 1 .

[0044] The lifting component is a feeding hydraulic cylinder 2, and a feeding bearing seat assembly 4 is installed at the bottom of the piston rod 3 of the feeding hydraulic cylinder 2 through a fixed frame. The feeding barrel 7 is rotatably installed on the feeding bearing seat assembly 4 through a rotating shaft. The flipping component includes a feeding servo motor 5 and a feeding gear set 6. The feeding servo motor 5 is installed on the fixed frame of the feeding bearing seat assembly 4, and the feeding servo motor 5 is connected to the rotating shaft of the feeding barrel 7 through the feeding gear set 6.

[0045] It also includes a dust cover 9 , a feed port 8 is provided on the top of the dust cover 9 , and a feeding bucket 7 is located above the feed port 8 .

[0046] The feeding servo motor 5 is driven by the feeding gear set 6 to drive the feeding barrel 7 to rotate and automatically feed the material to the feeding port 8.

[0047] The grinding table 10 is installed on the lower platform 13 . A positioning device 12 is provided below the automatic lifting and lowering grinding device 11 . The positioning device 12 is fixed on the lower platform 13 . A powder receiving port 14 is provided at the bottom of the lower platform 13 .

[0048] The grinding table 10 is vertically penetrated, and the inner annular surface of the grinding table 10 is a grinding surface, and the inner annular surface is a truncated cone-shaped annular surface.

[0049] The automatic lifting and lowering grinding mechanism 11 includes a grinding head 1101, a connecting rod 1102, a bearing seat assembly 1103, a transmission gear 1104, a servo motor 1105, a liftable bracket 1106 and a hydraulic cylinder assembly 1107. The hydraulic cylinder assembly 1107 is installed on the bracket 1, the liftable bracket 1106 is installed on the lifting end of the hydraulic cylinder assembly 1107, the servo motor 1105 is installed on the liftable bracket 1106, the connecting rod 1102 is rotatably installed on the liftable bracket 1106 through the bearing seat assembly 1103, the top end of the connecting rod 1102 is fixedly connected with a transmission gear 1104, the output end of the servo motor 1105 is meshed with the transmission gear 1104 through a gear, and the grinding head 1101 is fixedly connected to the bottom of the connecting rod 1102.

[0050] The grinding head 1101 is also in the shape of a truncated cone, and the radius of the grinding head 1101 is smaller at the top and bottom, matching the inner annular surface of the grinding table 10 .

[0051] A positioning cylinder 1108 is fixedly connected to the center of the bottom of the grinding head 1101, and four positioning grooves are evenly distributed on the outer ring surface of the positioning cylinder 1108.

[0052] The positioning device 12 includes a positioning plate 1201 , a bearing assembly 1202 and a support plate 1203 . The support plate 1203 is fixedly connected to the lower platform 13 , the bearing assembly 1202 is mounted on the support plate 1203 , and the positioning plate 1201 is rotatably mounted on the bearing assembly 1202 .

[0053] Four positioning blocks 1204 are evenly distributed and fixed along the center circle of the positioning plate 1201 , and the positioning blocks 1204 match the positioning grooves of the positioning cylinder 1108 .

[0054] The positioning block 1204 is inserted into the positioning groove of the positioning cylinder 1108, driving the positioning plate 1201 and the grinding head 1101 to rotate synchronously, limiting the radial deviation of the grinding head 1101 during the grinding process, reducing the vibration of the grinding process, and ensuring the stability of the grinding.

[0055] A powder receiving opening 14 is provided at the bottom of the lower platform, and the powder receiving opening 14 is of a closed-mouth design to prevent powder from diffusing.

[0056] In this embodiment, the solid raw material in the feeding barrel 7 is raised to a suitable height under the drive of the feeding hydraulic cylinder 2. The feeding servo motor 5 drives the feeding barrel 7 to rotate and tilt through the feeding gear set 6, and the solid raw material is poured into the feeding port 8. The solid raw material opens the self-closing baffle 801 by its own gravity and falls onto the grinding table 10. The self-closing baffle 801 automatically closes the inlet by the suction force of the bar magnet 802.

[0057] The automatic lifting grinding mechanism 11 is adjusted to a suitable height through the hydraulic cylinder assembly 1107, at which time the groove on the positioning cylinder 1108 is matched with the positioning block 1204. The servo motor 1105 is started, and the servo motor 1105 drives the grinding head 1101 to rotate through the transmission gear 1104, the bearing seat assembly 1103, and the connecting rod 1102. The grinding surface of the grinding head 1101 cooperates with the grinding surface of the grinding table 10 to complete the grinding of the solid raw material, and the ground solid particles fall into the material powder receiving port 14 and are collected.

[0058] According to different grinding particle standards, the height of the grinding head 1101 can be adjusted, and then the distance between the grinding surface of the grinding head 1101 and the grinding surface of the grinding table 10 can be adjusted. Then, the grinding head 1101 is rotated to grind out grinding particles of different sizes, thereby achieving the effect of grinding particles of different sizes for different materials, improving the grinding efficiency, and enhancing the adaptability of the grinder under various working conditions.

[0059] At the same time, automatic feeding and overall automated grinding are realized without the need for human intervention, which greatly improves safety and work efficiency and reduces the harm of chemical powder to workers during the grinding process.

[0060] Example 2

[0061] Combination Figure 1-14 As shown, the difference between this embodiment and embodiment 1 is that: it also includes a dust cover 9 and a residue cleaning assembly, the dust cover 9 is installed on the top of the lower platform 13, the dust cover 9 covers the top of the grinding table 10 and the grinding head 1101, the connecting rod 1102 passes through the dust cover 9, the top of the dust cover 9 is provided with a feed port 8, and an annular grinding plate 1001 is rotatably provided on the grinding surface of the grinding table 10;

[0062] The annular grinding plate 1001 is driven to rotate by a driving mechanism inside the grinding table 10. During the grinding process, the grinding table 10 remains stationary. After the grinding work is completed, a cleaning phase is performed. The driving mechanism drives the annular grinding plate 1001 to rotate and clean. The specific cleaning method is as follows:

[0063] The residue cleaning assembly includes an installation box 1501, a slide rail 1502, a sliding table 1503, a connection frame 1504, a support rod 1505, a first scraper 1506, a second scraper 1507, a connecting seat 1508 and a telescopic driving member 1509. The installation box 1501 is installed on one side of the dust cover 9, and the dust cover 9 is connected to the space in the installation box 1501. The slide rail 1502 is in an inclined state, and the slide rail 1502 is installed in the installation box 1501. The sliding table 1503 is slidably installed in the slide rail 1502, the connection frame 1504 is fixed to the sliding table 1503, and the support rod 1505 is connected to the first scraper 1506, the second scraper 1507, the connecting seat 1508 and the telescopic driving member 1509. 505 is rotatably installed on the connecting frame 1504, the lower end of the first scraper 1506 is hinged to the lower end of the support rod 1505, the upper end of the second scraper 1507 is hinged to the upper end of the support rod 1505, the connecting seat 1508 is rotatably installed on the connecting frame 1504, two telescopic driving members 1509 are provided, and the two fixed ends of the two telescopic driving members 1509 are symmetrically fixed to the connecting seat 1508, the telescopic end of the first telescopic driving member 1509 is hinged to the upper part of the first scraper 1506, and the telescopic end of the second telescopic driving member 1509 is hinged to the lower part of the second scraper 1507.

[0064] In this embodiment, after grinding, the equipment needs to be cleaned to prevent the crushed materials from sticking in it. The hydraulic cylinder assembly drives the grinding head 1101 to rise upward, and the grinding head 1101 moves upward away from the annular grinding plate 1001. Then the sliding table 1503 slides downward along the slide rail 1502, driving the residual cleaning assembly to move downward to one side of the grinding table 10 and the annular grinding plate. Then, the two telescopic driving members 1509 begin to extend, thereby driving the first scraper 1506 and the second scraper 1507 to begin to unfold. During the unfolding process, the support rod 1505 also rotates to pull the first scraper 1506 and the second scraper 1507. At both ends, the other ends of the first scraper 1506 and the second scraper 1507 are respectively pulled by two telescopic driving parts 1509, and then the first scraper 1506 and the second scraper 1507 are slowly unfolded until the first scraper 1506 and the second scraper 1507 are respectively attached to the outer ring surface of the grinding head 1101 and the inner surface of the annular grinding plate 1001 of the grinding table 10, and then the driving mechanism drives the annular grinding plate 1001 to rotate, and the grinding head 1101 also rotates. During the rotation, the material adhered to its surface is scraped off, thereby realizing automatic maintenance and cleaning of the equipment and avoiding long-term adhesion of materials causing the equipment to be unable to be used normally.

[0065] It also includes a scraper assembly, which includes a lifting drive member 1601 and a third scraper 1602 . The lifting drive member 1601 is installed on the inner top of the dust cover 9 , and the third scraper 1602 is installed on the bottom of the lifting end of the lifting drive member 1601 .

[0066] During the rotation of the grinding head 1101, the lifting drive 1601 will drive the third scraper 1602 to descend, and the third scraper 1602 will rest against the upper surface of the grinding head 1101 to scrape off the material on the upper surface of the grinding head 1101 to avoid residue on the top surface.

[0067] Example 3

[0068] Combination Figure 1-5 As shown, the difference between this embodiment and embodiment 2 is that a self-closing baffle 801 is rotatably installed at the bottom of the feed port 8 through a torsion spring shaft, and a bar magnet 802 is embedded at the edge of the self-closing baffle 801.

[0069] When feeding, the material presses the self-closing baffle 801 down and opens by its own gravity, and the torsion spring on the torsion spring shaft is compressed. After the feeding is completed, the self-closing baffle 801 is closed by the elastic force of the torsion spring shaft and the magnetic attraction force with the feeding port 8.

[0070] The lower side of the feed port 8 is connected to the dust cover 9, the inner wall of the dust cover 9 is in contact with the outer wall of the grinding table 10, and the upper end surface of the grinding table 10 to the grinding surface is designed to be sloped, which facilitates the solid raw material to roll onto the grinding surface for grinding.

[0071] The above-mentioned embodiments are described in a relatively detailed and specific manner, expressing the preferred embodiments of the present invention, and are only used to illustrate the technical ideas and features of the present invention. The purpose is to enable technicians in this field to understand the contents of the present invention and implement them accordingly, but are not limited to the present invention. The patent scope of the present invention cannot be limited only by this embodiment, that is, any equivalent changes or modifications made to the spirit disclosed by the present invention, for researchers or technicians in this field, without departing from the structure of the present invention, local improvements within the system and changes and conversions between subsystems, etc., are still within the patent scope of the present invention.

Claims

1. A fully automatic chemical grinding machine, comprising a support (1), characterized in that: It also includes a lifting component, a turning component and a grinding table (10), wherein the lifting component is mounted on the bracket (1), the turning component is mounted on the lifting end of the lifting component, and a feeding bucket (7) is mounted on the rotating end of the turning component; An automatic lifting and lowering grinding mechanism (11) is arranged above the grinding table (10), and the automatic lifting and lowering grinding mechanism (11) is installed on the bracket (1).

2. A fully automatic chemical grinding machine according to claim 1, characterized in that: The lifting component is a feeding hydraulic cylinder (2), the bottom of the piston rod (3) of the feeding hydraulic cylinder (2) is installed with a feeding bearing seat assembly (4) through a fixed frame, the feeding barrel (7) is rotatably installed on the feeding bearing seat assembly (4) through a rotating shaft, and the flipping component includes a feeding servo motor (5) and a feeding gear set (6), the feeding servo motor (5) is installed on the fixed frame of the feeding bearing seat assembly (4), and the feeding servo motor (5) is connected to the rotating shaft of the feeding barrel (7) through the feeding gear set (6).

3. A fully automatic chemical grinding machine according to claim 2, characterized in that: The grinding table (10) is installed on a lower platform (13), a positioning device (12) is provided below the automatic lifting and lowering grinding device (11), the positioning device (12) is fixed on the lower platform (13), and a powder receiving port (14) is provided at the bottom of the lower platform (13).

4. A fully automatic chemical grinding machine according to claim 3, characterized in that: The automatic lifting grinding mechanism (11) comprises a grinding head (1101), a connecting rod (1102), a bearing seat assembly (1103), a transmission gear (1104), a servo motor (1105), a liftable bracket (1106) and a hydraulic cylinder assembly (1107), wherein the hydraulic cylinder assembly (1107) is mounted on the bracket (1), the liftable bracket (1106) is mounted on the lifting end of the hydraulic cylinder assembly (1107), and the servo motor (1105) is driven by a gear (1106). 1105) is installed on the liftable bracket (1106), the connecting rod (1102) is rotatably installed on the liftable bracket (1106) through the bearing seat assembly (1103), the top of the connecting rod (1102) is fixedly connected with a transmission gear (1104), the output end of the servo motor (1105) is meshed with the transmission gear (1104) through a gear, and the grinding head (1101) is fixedly connected to the bottom of the connecting rod (1102).

5. A fully automatic chemical grinding machine according to claim 4, characterized in that: A positioning cylinder (1108) is fixedly connected to the center of the bottom of the grinding head (1101), and four positioning grooves are evenly distributed on the outer ring surface of the positioning cylinder (1108).

6. A fully automatic chemical grinding machine according to claim 5, characterized in that: The positioning device (12) comprises a positioning plate (1201), a bearing assembly (1202) and a support plate (1203); the support plate (1203) is fixedly connected to the lower platform (13); the bearing assembly (1202) is mounted on the support plate (1203); and the positioning plate (1201) is rotatably mounted on the bearing assembly (1202).

7. A fully automatic chemical grinding machine according to claim 6, characterized in that: Four positioning blocks (1204) are evenly distributed and fixed along the center circle on the positioning plate (1201), and the positioning blocks (1204) match the positioning grooves of the positioning cylinder (1108).

8. A fully automatic chemical grinding machine according to claim 7, characterized in that: It also includes a dust cover (9) and a residue cleaning assembly, wherein the dust cover (9) is installed on the top of the lower platform (13), the dust cover (9) covers the grinding table (10) and the grinding head (1101), the connecting rod (1102) passes through the dust cover (9), a feed port (8) is provided on the top of the dust cover (9), and an annular grinding plate (1001) is rotatably provided on the grinding surface of the grinding table (10); The residue cleaning assembly comprises an installation box (1501), a slide rail (1502), a sliding platform (1503), a connecting frame (1504), a support rod (1505), a first scraper (1506), a second scraper (1507), a connecting seat (1508) and a telescopic driving member (1509); the installation box (1501) is installed on one side of the dust cover (9); the dust cover (9) is connected to the space in the installation box (1501); the slide rail (1502) is in an inclined state; the slide rail (1502) is installed in the installation box (1501); the sliding platform (1503) is slidably installed in the slide rail (1502); the connecting frame (1504) is fixedly connected to the sliding platform (1503); The support rod (1505) is rotatably mounted on the connecting frame (1504); the lower end of the first scraper (1506) is hinged to the lower end of the support rod (1505); the upper end of the second scraper (1507) is hinged to the upper end of the support rod (1505); the connecting seat (1508) is rotatably mounted on the connecting frame (1504); two telescopic driving members (1509) are provided; two fixed ends of the two telescopic driving members (1509) are symmetrically fixed to the connecting seat (1508); the telescopic end of the first telescopic driving member (1509) is hinged to the upper part of the first scraper (1506); and the telescopic end of the second telescopic driving member (1509) is hinged to the lower part of the second scraper (1507).

9. A fully automatic chemical grinding machine according to claim 8, characterized in that: It also includes a scraper assembly, which includes a lifting drive member (1601) and a third scraper (1602), the lifting drive member (1601) is installed on the inner top of the dust cover (9), and the third scraper (1602) is installed on the bottom of the lifting end of the lifting drive member (1601).

10. A fully automatic chemical grinding machine according to claim 9, characterized in that: A self-closing baffle (801) is rotatably mounted at the bottom of the feed port (8) via a torsion spring shaft, and a bar magnet (802) is embedded at the edge of the self-closing baffle (801).

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