Laser coating equipment for brake disc and use method of laser coating equipment

Abstract

The invention relates to the technical field of laser coating, in particular to laser coating equipment for a brake disc and a use method of the laser coating equipment, and solves the problems that in the existing brake disc production process, the surface of the brake disc generally needs to be treated through various equipment and procedures, and the production efficiency is high. The problems that the brake disc is not convenient to transfer rapidly after being preheated, laser coating treatment is not convenient to control, multi-procedure one-time forming treatment is not convenient, and the treatment efficiency is not high are solved. According to the laser coating equipment for the brake disc and the using method of the laser coating equipment, the laser coating equipment comprises a protection cooling mechanism, a driving adjusting mechanism and positioning clamping mechanisms, the driving adjusting mechanism is installed on the inner side of the protection cooling mechanism, and the multiple positioning clamping mechanisms are installed on the inner side of the driving adjusting mechanism. According to the laser coating device for the brake disc, multiple procedures needed for surface treatment of the brake disc are mixed, the treatment and transfer time after laser coating can be effectively shortened, the treatment efficiency is improved, and the treatment effect on the surface of the brake disc is conveniently improved.

Description

Technical Field

[0001] The present invention relates to the technical field of laser coating, and in particular to a laser coating device for a brake disc and a method of using the same. Background Art

[0002] Brakes are the braking devices used for braking and emergency braking of automobiles. Brakes can be divided into disc brakes and drum brakes. Disc brakes have better heat dissipation than drum brakes, and are not prone to thermal decay under high-speed braking conditions, so they have good high-speed braking effects. Disc brakes are mainly composed of brake calipers and brake discs. The brake disc is a round disc and is the key to braking. Automobile brake discs need to be laser coated on the surface and form a metal coating to reduce brake dust, increase service life and improve safety.

[0003] In the existing production process of brake discs, it is generally necessary to process the surface of the brake discs through a variety of equipment and processes, which makes it inconvenient to control the rapid transportation and laser coating of the brake discs after preheating, and is not convenient for one-time molding of multiple processes, and the processing efficiency is low; therefore, it does not meet the existing needs. We have proposed a laser coating device for brake discs and a method of using the same. Summary of the invention

[0004] The purpose of the present invention is to provide a laser coating device for brake discs and a method of using the same, so as to solve the problems raised in the above background technology that in the existing production process of brake discs, it is generally necessary to process the surface of the brake discs through multiple equipment and processes, which makes it inconvenient to control the rapid transportation and laser coating of the brake discs after preheating, and it is not convenient for one-time molding of multiple processes, and the processing efficiency is low.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a laser coating device for a brake disc, comprising a protective cooling mechanism, a driving adjustment mechanism and a positioning clamping mechanism, wherein the driving adjustment mechanism is installed on the inner side of the protective cooling mechanism, and a plurality of positioning clamping mechanisms are installed on the inner side of the driving adjustment mechanism, and a preheating coating mechanism, a pressure roller module and a grinding module are installed between the protective cooling mechanism and the driving adjustment mechanism, wherein the preheating coating mechanism, the pressure roller module and the grinding module are arranged in a clockwise direction; The protective cooling mechanism comprises a protective box, an annular guide frame is fixedly installed on the inner side of the upper end of the protective box, a curved lifting strip is fixedly installed on one side of the annular guide frame, and the driving adjustment mechanism comprises two retaining seats, the protective box is fixedly connected to the two retaining seats, and a driving disc frame is rotatably connected between the two retaining seats; The positioning and clamping mechanism includes two mounting sleeves, which are fixedly connected to the transmission disc frame, a first limiting ring is installed on the inner side of the bottom end of one of the mounting sleeves, the upper end surface of the first limiting ring is rotatably connected to a transmission column, and a driven wheel is provided at the bottom end of the transmission column, a second limiting ring is installed on the inner side of the upper end of the other mounting sleeve, the inner side of the second limiting ring is movably connected to a follower seat, a movable column is installed at the bottom end of the follower seat, and a clamping disk is installed at the upper end of the first limiting ring and the bottom end of the movable column.

[0006] Preferably, the protective cooling mechanism also includes a conical air guide hood fixedly connected to one side of the protective box body, one end of the conical air guide hood is connected to a breathable cover by a thread, a fan box is fixedly installed on the inner side of the conical air guide hood, a loading and unloading port is fixedly installed on the other side of the protective box body, and a dust removal hood is fixedly installed on the middle part of the upper end surface of the protective box body, the conical air guide hood forms an airflow through fan blades provided in the fan box, and the airflow passes through the breathable cover and the conical air guide hood in turn and is input into the inner side of the dust removal hood.

[0007] Preferably, the drive adjustment mechanism also includes a first transmission motor fixedly connected to the bottom end of the protective box, the output end of the first transmission motor is connected to the transmission shaft through a coupling, two connecting frames are installed on the outer side of the upper end of the transmission shaft, the lower end surface of the transmission disc frame is rotatably connected to a transmission ring, the inner side of the transmission ring is rollingly connected to a driving wheel, a second transmission motor is installed below the driving wheel, the transmission shaft and the transmission disc frame are fixedly connected through two connecting frames, the second transmission motor is fixedly connected to the protective box, the output end of the second transmission motor is fixedly connected to the driving wheel, and the driving wheel is connected to a plurality of driven wheels through a transmission ring.

[0008] Preferably, the preheating coating mechanism includes an arc-shaped support frame, which is fixedly connected to the protective box, a preheating seat is fixedly installed on one end of the arc-shaped support frame, and a coating seat is fixedly installed on the other end of the arc-shaped support frame, laser gun heads are fixedly installed on the inner sides of the upper and lower ends of the coating seat, and induction coils are provided inside the upper and lower ends of the preheating seat, the laser gun head is fixedly connected to the coating seat, a brake disc is provided between two adjacent clamping discs, and the two adjacent laser gun heads and induction coils are symmetrically installed relative to the brake disc.

[0009] Preferably, the pressure roller module includes a first drive box and two pressure rollers, and the grinding module includes a second drive box and two cutter heads. The pressure roller module can drive the two pressure rollers to rotate through the first drive box to roll the upper and lower end surfaces of the brake disc, and the grinding module can drive the cutter heads to rotate through the second drive box and grind the upper and lower end surfaces of the brake disc.

[0010] Preferably, the first limiting ring and the second limiting ring are both connected to the mounting sleeve via threads, the bottom end of the transmission column passes through the first limiting ring and is fixedly connected to the driven wheel, the bottom end of the follower seat passes through the second limiting ring and is fixedly connected to the movable column, the transmission column and the movable column are both connected to the mounting sleeve via bearings, the transmission column and the movable column are both fixed to the clamping plate via screws, and two adjacent clamping plates are installed by flat key plug-in.

[0011] Preferably, an arc groove is provided on one side of the curved lifting strip, wherein the upper end of one of the follower seats is inserted into the inner side of the arc groove and is rollingly connected to the curved lifting strip, and the annular guide frame slides in contact with the upper end surface of the remaining follower seat.

[0012] A method for using a laser coating device for a brake disc comprises the following steps: S1: Place the brake disc to be laser coated into the inner side of the protective box through the loading and unloading ports, turn on the power, start the first transmission motor, so that the first transmission motor drives the transmission disc frame to rotate clockwise relative to the axis of the annular guide frame through the transmission shaft and the connecting frame under the support of the protective box, and a curved lifting bar is fixedly installed on one side of the annular guide frame, and an arc groove is provided on one side of the curved lifting bar, and the upper end of one follower seat is plugged into the inner side of the arc groove, and then the transmission disc frame drives multiple positioning clamping mechanisms to rotate synchronously, and the follower seat can drive the movable column to move downward on the inner side of the installation sleeve under the guidance of the arc groove; S2: At the same time, the movable column drives the two adjacent clamping discs to move toward each other and realize the automatic clamping operation of the brake disc. After the clamping is completed, the follower seat is separated from the curved lifting bar and slides in contact with the lower end surface of the annular guide frame, so that the clamping disc can maintain the stability of the brake disc through the annular guide frame; S3: Induction coils are provided inside the upper and lower ends of the preheating seat, so that when the brake disc moves to the inner side of the preheating seat, the brake disc is preheated for a time of T through the induction coil, and the preheating temperature t is controlled, and the second transmission motor is started at the same time, so that the second transmission motor drives multiple driven wheels to rotate synchronously through the driving wheel and the transmission ring under the support of the protective box, and then the driven wheel drives the brake disc to rotate clockwise relative to the axis of the clamping disc through the transmission column and the clamping disc, so as to realize the rotation heating of the brake disc, meet the full preheating of the brake disc, and keep the temperature of each part consistent; S4: After preheating, it moves to the inner side of the coating seat, so that the upper and lower end surfaces of the brake disc in the rotating state can be laser coated by two laser gun heads, and a coating layer is formed on the surface of the brake disc. After laser coating, it moves to one end of the roller module through the conical air guide cover, so that the roller provided in the roller module can compact and level the coating layer in the incompletely cooled state, reduce the generation of cracks in the coating layer, and improve the coating efficiency. Then, the surface of the brake disc can be ground by the cutter head in the grinding module, so as to further improve the molding quality of the surface of the brake disc after coating; S5: After the processing of the brake disc is completed, the transmission disc frame continues to rotate, so that the upper end of the follower seat can be re-engaged with the arc groove provided on one side of the curved lifting bar, so that the curved lifting bar can drive the two adjacent clamping discs to separate through the follower seat and the movable column, and then the brake disc can be unloaded and stored through the loading and unloading ports.

[0013] Preferably, the thickness of the coating layer is 0.01-0.28 mm, and the hardness of the coating layer is HRC50-70.

[0014] Preferably, the power of the induction coil is 2-3 kW, the preheating time T is 5-8 min, and the preheating temperature t is 235-290°C.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention drives the transmission disc frame to rotate clockwise relative to the axis of the annular guide frame through the transmission shaft and the connecting frame. An arc groove is provided on one side of the curved lifting strip. When the transmission disc frame drives multiple positioning clamping mechanisms to rotate synchronously, the follower seat can drive the movable column to move downward on the inner side of the mounting sleeve under the guidance of the arc groove. The movable column drives two adjacent clamping discs to move toward each other and realize the automatic clamping operation of the brake disc. The annular guide frame can maintain the stability of the clamping disc clamping the brake disc; 2. The present invention preheats the brake disc through an induction coil, and the second transmission motor synchronously drives multiple driven wheels to rotate through the driving wheel and the transmission ring to achieve rotational heating of the brake disc, so as to fully preheat the brake disc and keep the temperature of each part consistent. The upper and lower end surfaces of the brake disc in the self-rotating state can be laser coated by two laser gun heads. The pressure roller provided in the pressure roller module can compact and flatten the coating layer in the incomplete cooling state, reduce the generation of cracks in the coating layer, and improve the coating efficiency. The surface of the brake disc can be ground by the cutter head in the grinding module, so as to further improve the molding quality of the surface of the brake disc after coating. 3. The present invention engages the upper end of the follower seat with the arc groove provided on one side of the curved lifting strip, so that the curved lifting strip can drive the two adjacent clamping discs to separate through the follower seat and the movable column. By combining various processes required for the surface treatment of the brake disc, the processing and transportation time after laser coating can be effectively shortened, the processing efficiency can be improved, and it is convenient to improve the processing effect on the brake disc surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic cross-sectional structure diagram of the protective cooling mechanism of the present invention; Figure 3 It is a schematic cross-sectional structure diagram of the transmission disc frame of the present invention; Figure 4 It is a schematic cross-sectional structure diagram of the present invention as a whole; Figure 5 It is a structural schematic diagram of the preheating coating mechanism of the present invention; Figure 6 A bottom view of the drive adjustment mechanism of the present invention; Figure 7 It is a schematic diagram of the installation structure of the positioning and clamping mechanism of the present invention; Figure 8 For the present invention Figure 4 Schematic diagram of the local amplification structure of the middle A area; Fig. 9 It is a schematic diagram of the exploded structure of the positioning and clamping mechanism of the present invention.

[0017] In the figure: 1. protective cooling mechanism; 101. protective box; 102. dust cover; 103. breathable cover; 104. loading and unloading port; 105. conical air guide cover; 106. fan box; 107. annular guide frame; 108. curved lifting strip; 2. drive adjustment mechanism; 201. retaining seat; 202. first transmission motor; 203. transmission disc frame; 204. connecting frame; 205. transmission shaft; 206. second transmission motor; 2 07. Driving wheel; 208. Transmission ring; 3. Positioning and clamping mechanism; 301. Driven wheel; 302. Transmission column; 303. Mounting sleeve; 304. Follower seat; 305. Clamping disk; 306. First limiting ring; 307. Movable column; 308. Second limiting ring; 4. Preheating and coating mechanism; 401. Arc support frame; 402. Preheating seat; 403. Coating seat; 404. Laser gun head; 5. Pressing roller module; 6. Grinding module. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely 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.

[0019] The first transmission motor 202 (model: YEJ3-112M-4) and the second transmission motor 206 (model: GV50-3.7KW-60-S) mentioned in the present invention can be purchased from the market or obtained through private customization.

[0020] See also Figures 1 to 5 An embodiment of the present invention is as follows: a laser coating device for a brake disc, comprising a protective cooling mechanism 1, a driving and adjusting mechanism 2 and a positioning and clamping mechanism 3; a preheating coating mechanism 4, a pressure roller module 5 and a grinding module 6 are installed between the protective cooling mechanism 1 and the driving and adjusting mechanism 2; the preheating coating mechanism 4, the pressure roller module 5 and the grinding module 6 are arranged clockwise; the pressure roller module 5 comprises a first driving box and two pressure rollers; the grinding module 6 comprises a second driving box and two cutter heads; the pressure roller module 5 can drive the two pressure rollers to rotate through the first driving box to roll the upper and lower end surfaces of the brake disc; the grinding module 6 can drive the cutter head to rotate through the second driving box and grind the upper and lower end surfaces of the brake disc.

[0021] See also Figures 1 to 4 The protective cooling mechanism 1 includes a protective box 101, an annular guide frame 107 is fixedly installed on the inner side of the upper end of the protective box 101, a curved lifting bar 108 is fixedly installed on one side of the annular guide frame 107, a conical air guide cover 105 is fixedly connected to one side of the protective box 101, a breathable cover 103 is connected to one end of the conical air guide cover 105 by threading, a fan box 106 is fixedly installed on the inner side of the conical air guide cover 105, and a loading and unloading port is fixedly installed on the other side of the protective box 101 104. A dust cover 102 is fixedly installed in the middle of the upper end surface of the protective box 101. The conical air guide cover 105 forms an airflow through the fan blades provided in the fan box 106. The airflow passes through the breathable cover 103 and the conical air guide cover 105 in turn and is input to the inner side of the dust cover 102. The fan box 106 facilitates the extraction of external air into the inner side of the protective box 101, so as to achieve preliminary cooling of the brake disc after laser coating, and avoid excessive deformation of the coating layer during rolling due to excessive temperature.

[0022] See also Figures 2 to 6A driving and adjusting mechanism 2 is installed on the inner side of the protective cooling mechanism 1. The driving and adjusting mechanism 2 includes two retaining seats 201. The protective box 101 is fixedly connected to the two retaining seats 201. A transmission disc frame 203 is rotatably connected between the two retaining seats 201. A first transmission motor 202 is fixedly connected to the bottom end of the protective box 101. The output end of the first transmission motor 202 is connected to a transmission shaft 205 through a coupling. Two connecting frames 204 are installed on the outer side of the upper end of the transmission shaft 205, so that the first transmission motor 202 drives the transmission disc frame 203 to rotate clockwise relative to the axis of the annular guide frame 107 through the transmission shaft 205 and the connecting frame 204, thereby realizing the rapid transportation of the brake disc between multiple processes; The lower end surface of the transmission disc frame 203 is rotatably connected with a transmission ring 208, and the inner side of the transmission ring 208 is rollingly connected with a driving wheel 207. A second transmission motor 206 is installed below the driving wheel 207. The transmission shaft 205 is fixedly connected to the transmission disc frame 203 through two connecting frames 204. The second transmission motor 206 is fixedly connected to the protective box 101, and the output end of the second transmission motor 206 is fixedly connected to the driving wheel 207. The driving wheel 207 is transmission-connected to multiple driven wheels 301 through the transmission ring 208. The second transmission motor 206 synchronously drives the multiple driven wheels 301 to rotate through the driving wheel 207 and the transmission ring 208, and then the driven wheel 301 drives the brake disc to rotate clockwise relative to the axis of the clamping disc 305 through the transmission column 302 and the clamping disc 305, so as to realize the rotation of the brake disc when it is heated, so as to fully preheat the brake disc and keep the temperature of each part consistent.

[0023] See also Figures 5 to 9 , a plurality of positioning and clamping mechanisms 3 are installed on the inner side of the driving and adjusting mechanism 2, and the positioning and clamping mechanisms 3 include two mounting sleeves 303, and the mounting sleeves 303 are fixedly connected to the transmission disc frame 203, and a first limiting ring 306 is installed on the inner side of the bottom end of one of the mounting sleeves 303, and the upper end surface of the first limiting ring 306 is rotatably connected to the transmission column 302, and the bottom end of the transmission column 302 is provided with a driven wheel 301, and the bottom end of the transmission column 302 passes through the first limiting ring 306 and is fixedly connected to the driven wheel 301, and a second limiting ring 308 is installed on the inner side of the upper end of the other mounting sleeve 303, and the first limiting ring 306 and the second limiting ring 308 are both connected to the mounting sleeve 303 through threads, and the transmission column 302 and the movable column 307 can be limited respectively by the first limiting ring 306 and the second limiting ring 308; The inner side of the second limiting ring 308 is movably connected with a follower seat 304, and an arc groove is provided on one side of the curved lifting bar 108. The upper end of one of the follower seats 304 is inserted into the inner side of the arc groove and is rollingly connected with the curved lifting bar 108. The annular guide frame 107 slides in contact with the upper end surface of the remaining follower seat 304, so that the curved lifting bar 108 can guide the follower seat 304 through the arc groove, thereby facilitating the rotation and lifting of the follower seat 304. A movable column 307 is installed at the bottom end of the follower seat 304, and the bottom end of the follower seat 304 passes through the second limiting ring 308 and is fixedly connected to the movable column 307. The transmission column 302 and the movable column 307 are connected to the mounting sleeve 303 through a bearing, and the upper end of the first limiting ring 306 and the bottom end of the movable column 307 are both installed with a clamping plate 305. The transmission column 302 and the movable column 307 are both fixed to the clamping plate 305 by screws, and the two adjacent clamping plates 305 are installed by flat key plug-in. The movable column 307 drives the two adjacent clamping plates 305 to move toward each other and realizes the automatic clamping operation of the brake disc, and the annular guide frame 107 can keep the clamping plate 305 stable on the brake disc.

[0024] See also Figure 3 and Figure 5 The preheating coating mechanism 4 includes an arc-shaped support frame 401, which is fixedly connected to the protective box 101, a preheating seat 402 is fixedly installed at one end of the arc-shaped support frame 401, and a coating seat 403 is fixedly installed at the other end of the arc-shaped support frame 401. Laser gun heads 404 are fixedly installed on the inner sides of the upper and lower ends of the coating seat 403, and induction coils are arranged inside the upper and lower ends of the preheating seat 402. The laser gun head 404 is fixedly connected to the coating seat 403, and a brake disc is arranged between two adjacent clamping discs 305. The two adjacent laser gun heads 404 and the induction coils are symmetrically installed relative to the brake disc. The brake disc is preheated by the induction coil to meet the requirement of sufficient preheating of the brake disc and improve the laser coating effect.

[0025] A method for using a laser coating device for a brake disc comprises the following steps: S1: Put the brake disc to be laser coated into the inner side of the protective box 101 through the loading and unloading port 104, turn on the power, start the first transmission motor 202, so that the first transmission motor 202 drives the transmission disc frame 203 to rotate clockwise relative to the axis of the annular guide frame 107 through the transmission shaft 205 and the connecting frame 204 under the support of the protective box 101, and a curved lifting bar 108 is fixedly installed on one side of the annular guide frame 107, and an arc groove is provided on one side of the curved lifting bar 108, and the upper end of one follower seat 304 is plugged into the inner side of the arc groove, and then the transmission disc frame 203 drives the multiple positioning clamping mechanisms 3 to rotate synchronously. Under the guidance of the arc groove, the follower seat 304 can drive the movable column 307 to move downward on the inner side of the mounting sleeve 303; S2: At the same time, the movable column 307 drives the two adjacent clamping plates 305 to move toward each other and realize the automatic clamping operation of the brake disc. After the clamping is completed, the follower seat 304 is separated from the curved lifting bar 108 and slides in contact with the lower end surface of the annular guide frame 107, so that the clamping plate 305 can maintain the stability of clamping the brake disc through the annular guide frame 107; S3: Induction coils are provided inside the upper and lower ends of the preheating seat 402, so that when the brake disc moves to the inner side of the preheating seat 402, the brake disc is preheated for a time T through the induction coils, and the preheating temperature t is controlled, and the second transmission motor 206 is started at the same time, so that the second transmission motor 206 synchronously drives the plurality of driven wheels 301 to rotate through the driving wheel 207 and the transmission ring 208 under the support of the protective box 101, and then the driven wheel 301 drives the brake disc to rotate clockwise relative to the axis of the clamping disc 305 through the transmission column 302 and the clamping disc 305, so as to realize rotation heating of the brake disc, meet the requirements of sufficient preheating of the brake disc, and keep the temperature of each part consistent; S4: After preheating, it moves to the inner side of the coating seat 403, so that the upper and lower end surfaces of the brake disc in the rotating state can be laser coated by two laser gun heads 404, and a coating layer is formed on the surface of the brake disc. After laser coating, it moves to one end of the roller module 5 through the conical air guide cover 105, so that the roller provided in the roller module 5 can compact and level the coating layer in the incompletely cooled state, reduce the generation of cracks in the coating layer, and improve the coating efficiency. Then, the surface of the brake disc can be ground by the cutter head in the grinding module 6, so as to further improve the molding quality of the surface of the brake disc after coating; S5: After the processing of the brake disc is completed, the transmission disc frame 203 continues to rotate, so that the upper end of the follower seat 304 can be re-engaged with the arc groove provided on one side of the curved lifting bar 108, so that the curved lifting bar 108 can drive the two adjacent clamping discs 305 to separate through the follower seat 304 and the movable column 307, and then the brake disc can be unloaded and stored through the loading and unloading port 104.

[0026] Among them, the thickness of the coating layer is 0.01-0.28mm, the hardness of the coating layer is HRC50-70, the power of the induction coil is 2-3kw, the preheating time T is 5-8min, and the preheating temperature t is 235-290℃. By precisely controlling the parameters during the preheating and laser coating process, the surface treatment effect of the brake disc can be effectively improved.

[0027] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A laser coating device for a brake disc, comprising a protective cooling mechanism (1), a drive adjustment mechanism (2) and a positioning clamping mechanism (3), characterized in that: A driving adjustment mechanism (2) is installed on the inner side of the protective cooling mechanism (1), and a plurality of positioning clamping mechanisms (3) are installed on the inner side of the driving adjustment mechanism (2). A preheating coating mechanism (4), a pressure roller module (5) and a grinding module (6) are installed between the protective cooling mechanism (1) and the driving adjustment mechanism (2), and the preheating coating mechanism (4), the pressure roller module (5) and the grinding module (6) are arranged in a clockwise direction. The protective cooling mechanism (1) comprises a protective box (101), an annular guide frame (107) is fixedly mounted on the inner side of the upper end of the protective box (101), a curved lifting strip (108) is fixedly mounted on one side of the annular guide frame (107), the driving adjustment mechanism (2) comprises two retaining seats (201), the protective box (101) is fixedly connected to the two retaining seats (201), and a driving disc frame (203) is rotatably connected between the two retaining seats (201); The positioning clamping mechanism (3) comprises two mounting sleeves (303), the mounting sleeves (303) being fixedly connected to the transmission disc frame (203), a first limiting ring (306) being mounted on the inner side of the bottom end of one of the mounting sleeves (303), the upper end surface of the first limiting ring (306) being rotatably connected to a transmission column (302), the bottom end of the transmission column (302) being provided with a driven wheel (301), a second limiting ring (308) being mounted on the inner side of the upper end of the other mounting sleeve (303), the inner side of the second limiting ring (308) being movably connected to a follower seat (304), the bottom end of the follower seat (304) being mounted with a movable column (307), the upper end of the first limiting ring (306) and the bottom end of the movable column (307) being mounted with a clamping disc (305).

2. The laser coating device for brake disc according to claim 1, characterized in that: The protective cooling mechanism (1) further comprises a conical air guide hood (105) fixedly connected to one side of the protective box (101); one end of the conical air guide hood (105) is connected to a breathable cover (103) via a thread; a fan box (106) is fixedly mounted on the inner side of the conical air guide hood (105); a loading and unloading port (104) is fixedly mounted on the other side of the protective box (101); a dust removal hood (102) is fixedly mounted on the middle part of the upper end surface of the protective box (101); the conical air guide hood (105) forms an airflow through fan blades provided in the fan box (106); the airflow passes through the breathable cover (103) and the conical air guide hood (105) in sequence and is input into the inner side of the dust removal hood (102).

3. The laser coating device for brake disc according to claim 2, characterized in that: The driving adjustment mechanism (2) further comprises a first transmission motor (202) fixedly connected to the bottom end of the protection box (101); the output end of the first transmission motor (202) is connected to a transmission shaft (205) via a coupling; two connecting frames (204) are installed on the outer side of the upper end of the transmission shaft (205); the lower end surface of the transmission disc frame (203) is rotatably connected to a transmission ring (208); the inner side of the transmission ring (208) is rollingly connected to a driving wheel (207); a second transmission motor (206) is installed below the driving wheel (207); the transmission shaft (205) is fixedly connected to the transmission disc frame (203) via two connecting frames (204); the second transmission motor (206) is fixedly connected to the protection box (101); the output end of the second transmission motor (206) is fixedly connected to the driving wheel (207); and the driving wheel (207) is transmission-connected to a plurality of driven wheels (301) via the transmission ring (208).

4. The laser coating device for brake disc according to claim 2, characterized in that: The preheating coating mechanism (4) comprises an arc-shaped support frame (401), wherein the arc-shaped support frame (401) is fixedly connected to the protective box (101), a preheating seat (402) is fixedly installed on one end of the arc-shaped support frame (401), and a coating seat (403) is fixedly installed on the other end of the arc-shaped support frame (401), laser gun heads (404) are fixedly installed on the inner sides of the upper and lower ends of the coating seat (403), and induction coils are provided inside the upper and lower ends of the preheating seat (402), and the laser gun head (404) is fixedly connected to the coating seat (403), a brake disc is provided between two adjacent clamping discs (305), and the two adjacent laser gun heads (404) and the induction coils are symmetrically installed relative to the brake disc.

5. The laser coating device for brake disc according to claim 4, characterized in that: The pressure roller module (5) comprises a first drive box and two pressure rollers, and the grinding module (6) comprises a second drive box and two cutter heads. The pressure roller module (5) can drive the two pressure rollers to rotate through the first drive box to roll the upper and lower end surfaces of the brake disc, and the grinding module (6) can drive the cutter heads to rotate through the second drive box and grind the upper and lower end surfaces of the brake disc.

6. The laser coating device for brake disc according to claim 2, characterized in that: The first limiting ring (306) and the second limiting ring (308) are both connected to the mounting sleeve (303) via threads; the bottom end of the transmission column (302) passes through the first limiting ring (306) and is fixedly connected to the driven wheel (301); the bottom end of the follower seat (304) passes through the second limiting ring (308) and is fixedly connected to the movable column (307); the transmission column (302) and the movable column (307) are both connected to the mounting sleeve (303) via bearings; the transmission column (302) and the movable column (307) are both connected and fixed to the clamping plate (305) via screws; and two adjacent clamping plates (305) are installed by plugging with a flat key.

7. The laser coating device for brake disc according to claim 6, characterized in that: An arc groove is provided on one side of the curved lifting strip (108), the upper end of one of the follower seats (304) is inserted into the inner side of the arc groove and is rollingly connected to the curved lifting strip (108), and the annular guide frame (107) is slidably fitted with the upper end surface of the remaining follower seat (304).

8. A method for using a laser coating device for a brake disc, characterized in that: A method for using a laser coating device for a brake disc according to any one of claims 1 to 7, comprising the following steps: S1: The brake disc to be laser coated is placed into the inner side of the protective box (101) through the loading and unloading port (104), the power is turned on, and the first transmission motor (202) is started, so that the first transmission motor (202) drives the transmission disc frame (203) to rotate clockwise relative to the axis of the annular guide frame (107) through the transmission shaft (205) and the connecting frame (204) under the support of the protective box (101), and a curved lifting bar (108) is fixedly installed on one side of the annular guide frame (107), and an arc groove is provided on one side of the curved lifting bar (108), and the upper end of one of the follower seats (304) is inserted into the inner side of the arc groove, and then the transmission disc frame (203) drives the multiple positioning clamping mechanisms (3) to rotate synchronously. Under the guidance of the arc groove, the follower seat (304) can drive the movable column (307) to move downward on the inner side of the installation sleeve (303); S2: At the same time, the movable column (307) drives the two adjacent clamping plates (305) to move toward each other and realize the automatic clamping operation of the brake disc. After the clamping is completed, the follower seat (304) is separated from the curved lifting strip (108) and slides in contact with the lower end surface of the annular guide frame (107), so that the clamping plate (305) can maintain stability in clamping the brake disc through the annular guide frame (107); S3: Induction coils are provided inside the upper and lower ends of the preheating seat (402), so that when the brake disc moves to the inner side of the preheating seat (402), the brake disc is preheated for a time T through the induction coil, and the preheating temperature t is controlled, and the second transmission motor (206) is started at the same time, so that the second transmission motor (206) drives the plurality of driven wheels (301) to rotate synchronously through the driving wheel (207) and the transmission ring (208) under the support of the protection box (101), and then the driven wheel (301) drives the brake disc to rotate clockwise relative to the axis of the clamping disc (305) through the transmission column (302) and the clamping disc (305), so as to realize rotational heating of the brake disc, meet the requirement of sufficient preheating of the brake disc, and keep the temperature of each part consistent; S4: after preheating, the device moves to the inner side of the coating seat (403), so that the upper and lower end surfaces of the brake disc in the rotating state can be laser coated by two laser gun heads (404), and a coating layer is formed on the surface of the brake disc. After laser coating, the device moves to one end of the roller module (5) through the conical air guide cover (105), so that the roller provided in the roller module (5) can compact and level the coating layer in the incompletely cooled state, reduce the generation of cracks in the coating layer, and improve the coating efficiency. Then, the surface of the brake disc can be ground by the cutter head in the grinding module (6), so as to further improve the molding quality of the surface of the brake disc after coating. S5: After the brake disc is processed, the transmission disc frame (203) continues to rotate, so that the upper end of the follower seat (304) can be re-engaged with the arc groove provided on one side of the curved lifting bar (108), so that the curved lifting bar (108) can drive the two adjacent clamping discs (305) to separate through the follower seat (304) and the movable column (307), and then the brake disc can be unloaded and stored through the loading and unloading port (104).

9. The method for using the laser coating device for brake discs according to claim 8, characterized in that: The thickness of the coating layer is 0.01-0.28 mm, and the hardness of the coating layer is HRC50-70.

10. The method for using the laser coating equipment for brake discs according to claim 8, characterized in that: The power of the induction coil is 2-3kw, the time T of the preheating treatment is 5-8min, and the temperature t of the preheating treatment is 235-290°C.

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