CN114800094A

CN114800094A - Preparation device and method of automobile brake disc

Info

Publication number: CN114800094A
Application number: CN202210553626.XA
Authority: CN
Inventors: 蔡建舟
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-05-20
Filing date: 2022-05-20
Publication date: 2022-07-29

Abstract

The invention discloses a device and a method for preparing an automobile brake disc, and relates to the technical field of preparation of brake materials. According to the invention, power is provided by the power motor to drive the rotating shaft and the polishing sheet to rotate, so that the function of rotating and polishing a workpiece is achieved, the polishing sheet is matched to rotate to pass through the inside of the protective sleeve, so that the cleaning pad is in surface contact with the polishing sheet, the function of the cleaning pad for rubbing the fragments on the surface of the polishing sheet is achieved, the function of cleaning the fragments is achieved by utilizing the friction force and the cleaning function of the cleaning brush, the problem that the scraps rebound on the polishing sheet to cause secondary abrasion of the polishing sheet during rotary cutting of the polishing sheet is solved, the protection function of the device is increased, and the service life of the device is prolonged.

Description

Preparation device and method of automobile brake disc

Technical Field

The invention relates to the technical field of preparation of brake materials, in particular to a device and a method for preparing an automobile brake disc.

Background

There are two braking modes for automobiles, namely disc brakes and drum brakes. Because the disc brake has good heat dissipation compared with the drum brake, the disc brake is not easy to generate heat recession in a high-speed braking state. Therefore, many middle and high-grade cars adopt full-disc brakes at present. The main parts of the disc brake are brake disc, branch pump, brake caliper, oil pipe, etc. the brake disc is fixed on the wheel and rotates with the wheel, the branch pump is fixed on the bottom plate of the brake, and the two friction brake pads on the brake caliper are installed separately on two sides of the brake disc. When braking, the piston of the slave cylinder is under the hydraulic action conveyed by the oil pipe to push the friction brake pad to press the brake disc for friction braking. The following problems exist in the prior art:

1. the fixing performance of the automobile brake disc is poor during manufacturing and processing, so that vibration force is easy to generate during processing, and the manufacturing and processing quality of the automobile brake disc is affected;

2. when the automobile brake disc is machined and polished, the surface of polishing equipment is easy to splash and adhere to foreign matters, so that secondary abrasion is achieved when polishing is conducted, and the problem of damage to polishing machining is solved.

Disclosure of Invention

The invention provides a device and a method for preparing an automobile brake disc, which aim to solve the problems in the background technology.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

the invention provides a preparation device of an automobile brake disc, which comprises a preparation machine tool main body, a protective glass cover, a control screen, a discharge port and a fixed base, wherein the surface of the preparation machine tool main body is movably provided with the sealing cover, the control screen is fixedly arranged on the front side of the preparation machine tool main body and positioned on the left side of the sealing cover, the right side of the preparation machine tool main body is provided with the discharge port, the fixed base is fixedly arranged at the bottom of the preparation machine tool main body, a movable frame is fixedly arranged in the preparation machine tool main body, one end of the outer side of the movable frame is movably provided with a polishing device, and the other end of the movable frame is movably provided with a punching device.

The bottom of preparation lathe main part inner chamber is provided with the transmission band, the both sides fixed mounting of transmission band has the drive slide, the top movable mounting of drive slide has the sliding block, the side fixed mounting of sliding block has the telescopic link, the other end fixed mounting of telescopic link has the grip block.

The bottom of transmission band is provided with the friction pedestal, the inside movable mounting of friction pedestal has the center pin, the one end fixedly connected with regulating plate of center pin, the other end movable mounting of regulating plate has the fixed axle.

The technical scheme of the invention is further improved as follows: the both ends of transmission band inboard are provided with rotates the wheel, the back that rotates the wheel is provided with driving motor.

The technical scheme of the invention is further improved as follows: the inboard fixed mounting of grip block has the buffering post that resets, the other end of buffering post that resets is provided with keeps off the clamp plate.

The technical scheme of the invention is further improved as follows: the clamping plate is characterized in that a connecting plate is fixedly arranged on the outer surface of the upper side and the lower side of the clamping plate, a sliding column is fixedly arranged inside the connecting plate, a moving ring is movably arranged on the outer side of the sliding column, a limiting rod is fixedly connected to the side surface of the moving ring, a telescopic column is fixedly connected to the side surface of the moving ring, and the other end of the telescopic column is arranged inside the connecting plate.

The technical scheme of the invention is further improved as follows: the pipe sleeve is movably sleeved at one end, far away from the connecting plate, of the limiting rod, a rubber pad is fixedly mounted on the surface of the inner side of the pipe sleeve, a sponge pressure pad is fixedly mounted on the inner side of the rubber pad, a pressing plate is fixedly mounted inside the sponge pressure pad, and a rubber pressing column is arranged on the inner side of the pressing plate.

The technical scheme of the invention is further improved as follows: the bottom of regulating plate has seted up the spout, the inside movable mounting of spout has the pulley, the bottom movable mounting of pulley has the support column, the bottom fixedly connected with telescopic connecting rod of support column, telescopic connecting rod's the other end fixed mounting is on the inner wall of preparation lathe main part.

The technical scheme of the invention is further improved as follows: the friction shaft pad is characterized in that friction particles are fixedly mounted on the surface of the friction shaft pad, an air pressure rubber pad is fixedly mounted inside the friction shaft pad, an air bag block is fixedly mounted inside the air pressure rubber pad, and the inner side of the air pressure rubber pad is arranged on the outer side of the central shaft.

In a second aspect, the invention further provides a preparation method of the automobile brake disc, which comprises the following steps:

the method comprises the following steps: preparing a mixed material;

step two: molding a mold;

step three: and (5) precision machining.

The technical scheme of the invention is further improved as follows: mixing carbon fibers and ammonia phenolic resin according to a ratio of 5:4 to prepare a prepreg, then placing the prepreg in heating equipment for drying at the drying temperature of 75-85 ℃ for 1h, then placing the prepreg in a brake disc mould, coating a release agent in the mould before placing, then preheating for 10min, starting a hydraulic press, pre-pressing the prepreg paved in a cavity of an automobile brake mould by an upper mould, adjusting the temperature to 120-140 ℃, continuing for 1.5h, after the pre-pressing is finished, carrying out secondary pressurization by the hydraulic press, waiting for the mould to be cooled and taken out after finishing the pre-pressing, then carrying out infiltration curing treatment, horizontally immersing a mould piece of the automobile brake disc in a polycarbosilane solution, carrying out infiltration for 1h, then carrying out heat treatment, finally placing the mould piece on a processing machine for fine processing, firstly polishing burrs on the outer surface by a polishing mechanism, and then, the workpiece is pressed to form a hole by matching with a punching device, and the preparation is finished.

The technical scheme of the invention is further improved as follows: grinding machanism includes motor power, motor power's output fixedly connected with rotation axis, the fixed cover in bottom of rotation axis has connect the polishing piece, one side of polishing piece is provided with the lag, the inner wall fixed mounting of lag has the clearance to fill up, the fixed surface of clearance pad installs the clearance brush.

Due to the adoption of the technical scheme, compared with the prior art, the invention has the technical progress that:

1. the invention provides a device and a method for manufacturing an automobile brake disc, wherein an electric drive telescopic rod stretches and retracts to push a clamping plate to be extruded on two sides of a workpiece to achieve clamping and fixing in the horizontal direction, then a reset buffer column is pushed and pressed on the side surface of a blocking plate during clamping, so that vibration force is generated during machining of the workpiece, the vibration force is transmitted to the reset buffer column through the blocking plate, acting force is consumed by utilizing the flexibility of the reset buffer column and the elasticity of an external spring to achieve the effect of buffering and damping, the problem that the vibration force is easily generated during machining of the automobile brake disc due to poor fixing performance during manufacturing is solved, the device is favorable for increasing the damping function, and the stability of a clamping mechanism is improved.

2. The invention provides a device and a method for manufacturing an automobile brake disc, wherein an electric drive telescopic column pushes a moving ring to slide outside a sliding column, so that the moving ring drives a limiting rod to move, the limiting rod drives a pipe sleeve to be clamped on the upper side and the lower side of a workpiece, the effect of longitudinal clamping and fixing is achieved, a rubber pad is contacted with the workpiece, acting force is consumed by utilizing the flexibility of the rubber pad and a sponge pressing pad, then the sponge pressing pad is compressed under stress, a pressing plate is driven to press the rubber pressing column, the acting force is buffered by matching the flexibility of the rubber pressing column, the stability of the workpiece is further increased, the problems that the fixing performance is poor and the stability of the workpiece cannot be guaranteed are solved, the clamping force of the device is increased, and the stability of the device is improved.

3. The invention provides a device and a method for preparing an automobile brake disc, wherein a telescopic connecting rod is driven by electric power to move in a telescopic way, so as to drive a supporting column and a pulley to move in a chute, when the pulley moves to the left side, an adjusting plate is forced to push a central shaft to drive a friction shaft pad to be pressed against the surface of the bottom of a conveying belt, the function of cleaning scraps on the surface of the conveying belt is achieved by utilizing the friction force of friction particles in contact with the surface of the conveying belt, the problem that the cleaning of the device is difficult due to the fact that the scraps are easily adhered to the surface of the conveying belt is solved, the automatic cleaning of the device is facilitated, and the cleaning degree of the surface of the conveying belt is increased,

4. the invention provides a device and a method for manufacturing an automobile brake disc, wherein power is provided by a power motor to drive a rotating shaft and a polishing piece to rotate so as to achieve the function of rotatably polishing a workpiece, the polishing piece is matched to rotate to pass through the inside of a protective sleeve, so that a cleaning pad is in surface contact with the polishing piece, the function of the cleaning pad for rubbing scraps on the surface of the polishing piece is achieved, the function of cleaning the scraps is achieved by utilizing the friction force and the cleaning function of a cleaning brush, the problem that the scraps rebound on the polishing piece so as to cause secondary abrasion of the polishing piece during rotary cutting of the polishing piece is solved, the device is beneficial to increasing the protection function, and the service life of the device is prolonged.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural diagram of a preparation machine tool body according to the present invention;

FIG. 3 is a schematic diagram of a clamping plate structure according to the present invention;

FIG. 4 is a schematic view of the rubber pad of the present invention;

FIG. 5 is an enlarged view of the invention at A;

FIG. 6 is a schematic view of the friction pad structure of the present invention;

FIG. 7 is a schematic view of a polishing pad of the present invention;

fig. 8 is a schematic view of the structure of the protective cover of the present invention.

In the figure: 1. preparing a machine tool main body; 11. a movable frame; 12. a polishing device; 13. a punching device; 15. a conveyor belt; 151. a friction shaft pad; 1511. rubbing the particles; 1512. a pneumatic rubber pad; 1513. an air bag block; 152. an adjusting plate; 153. a fixed shaft; 154. a chute; 155. a pulley; 156. a support pillar; 157. a telescopic connecting rod; 16. a rotating wheel; 17. a drive motor; 18. driving the slide plate; 19. a slider; 191. a telescopic rod; 192. a clamping plate; 193. resetting the buffer column; 194. a pressure blocking plate; 195. a connecting plate; 196. a limiting rod; 197. pipe sleeve; 198. a rubber pad; 1981. a sponge pressure pad; 1982. pressing a plate; 1983. pressing a rubber column; 2. a cover of protective glass; 3. a control screen; 4. a discharge port; 5. a fixed base; 6. a power motor; 61. a rotating shaft; 62. grinding the sheets; 63. a protective sleeve; 631. cleaning the pad; 632. and cleaning the brush.

Detailed Description

The present invention will be described in further detail with reference to the following examples:

example 1

In a first aspect, as shown in fig. 1 to 8, the invention provides a device for preparing an automobile brake disc, which comprises a preparation machine tool main body 1, a protective glass cover 2, a control screen 3, a discharge port 4 and a fixed base 5, wherein the surface of the preparation machine tool main body 1 is movably provided with the seal cover 2, the front surface of the preparation machine tool main body 1 and the left side of the seal cover 2 are fixedly provided with the control screen 3, the right side of the preparation machine tool main body 1 is provided with the discharge port 4, the bottom of the preparation machine tool main body 1 is fixedly provided with the fixed base 5, the interior of the preparation machine tool main body 1 is fixedly provided with a movable frame 11, one end of the outer side of the movable frame 11 is movably provided with a grinding device 12, the other end of the movable frame is movably provided with a punching device 13, the bottom of the inner cavity of the preparation machine tool main body 1 is provided with a transmission belt 15, two sides of the transmission belt 15 are fixedly provided with driving sliding plates 18, and the top of the driving sliding plates 18 is movably provided with sliding blocks 19, the side surface of the sliding block 19 is fixedly provided with an expansion link 191, the other end of the expansion link 191 is fixedly provided with a clamping plate 192, two ends of the inner side of the transmission belt 15 are provided with rotating wheels 16, the back surface of the rotating wheels 16 is provided with a driving motor 17, the inner side of the clamping plate 192 is fixedly provided with a reset buffer column 193, the other end of the reset buffer column 193 is provided with a blocking plate 194, the outer surfaces of the upper side and the lower side of the clamping plate 192 are fixedly provided with a connecting plate 195, the inner part of the connecting plate 195 is fixedly provided with a sliding column, the outer side of the sliding column is movably provided with a moving ring, the side surface of the moving ring is fixedly connected with a limit rod 196, the side surface of the moving ring is fixedly connected with a telescopic column, the other end of the telescopic column is arranged in the connecting plate 195, one end of the limit rod 196 far away from the connecting plate 195 is movably sleeved with a pipe sleeve 197, the surface of the inner side surface of the pipe sleeve 197 is fixedly provided with a rubber pad 198, the inner side surface of the rubber pad 198 is fixedly provided with a sponge pressure pad 1981, a pressing plate 1982 is fixedly arranged in the sponge pressing pad 1981, and a rubber pressing column 1983 is arranged on the inner side of the pressing plate 1982.

In this embodiment, the cover 2 is opened by manual turning, the workpiece is placed on the conveyor 15, the telescopic rod 191 is driven by electric power to move in a telescopic manner, the clamping plate 192 is pushed to be extruded on two sides of the workpiece to achieve clamping and fixing in the horizontal direction, then the reset buffer post 193 pushes and presses the side surface of the blocking plate 194 during clamping, so that the workpiece generates vibration force during processing, the vibration force is transmitted to the reset buffer post 193 by the blocking plate 194, the action force is consumed by utilizing the flexibility of the reset buffer post 193 and the elasticity of an external spring to achieve the effect of buffering and damping, the stability of the clamping mechanism is increased, in addition, the movable ring is driven by the electric power to push the movable ring to slide outside the sliding post, so that the movable ring drives the limiting rod 196 to move, thereby the limiting rod 196 drives the pipe sleeves 197 to be clamped on the upper side and the lower side of the workpiece, and the effect of longitudinal clamping and fixing is achieved, the rubber pad 198 is matched with a workpiece to be contacted, acting force is consumed by utilizing the flexibility of the rubber pad 198 and the sponge pressing pad 1981, then the sponge pressing pad 1981 is stressed and compressed, the pressing plate 1982 is driven to extrude the rubber pressing column 1983, buffering acting force is performed by matching the flexibility of the rubber pressing column 1983, the stability of the workpiece is further improved, then the workpiece is processed by the polishing device 12, and after the processing of the polishing device 12 is finished, the sliding block 19 is matched to move at the top of the driving sliding plate 18 to drive the workpiece to move to the bottom of the punching device 13 for processing, so that the device is convenient and fast to process.

Example 2

As shown in fig. 1 to 8, on the basis of embodiment 1, the present invention provides a technical solution: preferably, the bottom of transmission band 15 is provided with friction shaft pad 151, the inside movable mounting of friction shaft pad 151 has the center pin, the one end fixedly connected with regulating plate 152 of center pin, the other end movable mounting of regulating plate 152 has fixed axle 153, spout 154 has been seted up to the bottom of regulating plate 152, the inside movable mounting of spout 154 has pulley 155, the bottom movable mounting of pulley 155 has support column 156, the bottom fixedly connected with telescopic connection rod 157 of support column 156, telescopic connection rod 157's other end fixed mounting is on the inner wall of preparation lathe main part 1, the fixed surface of friction shaft pad 151 has friction granule 1511, the inside fixed mounting of friction shaft pad 151 has atmospheric pressure rubber pad 1512, the inside fixed mounting of atmospheric pressure rubber pad 1512 has gasbag piece 1513, the inboard setting of atmospheric pressure rubber pad 1512 is in the outside of center pin.

In this embodiment, when processing through the device, the easy remaining piece in top of transmission band 15, the removal of cooperation transmission band 15, drive the piece to the bottom of preparation lathe main part 1 inner chamber, and cooperate the flexible connecting rod 157 telescopic movement of electric drive, drive support column 156 and pulley 155 and move inside spout 154, when pulley 155 moves to the left side, make regulating plate 152 atress promote the center pin and drive friction shaft pad 151 and support and press the surface at transmission band 15 bottom, utilize the frictional force of friction granule 1511 and transmission band 15 surface contact, reach the function of cleaning the piece on transmission band 15 surface, increase the cleanliness on transmission band 15 surface, then mutually support by gasbag piece 1513 and pneumatic rubber pad 1512 again, extrude inside atmospheric pressure, reach the function of cushioning effect, increase transmission band 15 buffering protection function.

Example 3

In a second aspect, as shown in fig. 1 to 8, the present invention further provides a method for manufacturing an automobile brake disc, including the following steps:

the method comprises the following steps: preparing a mixed material;

step two: molding a mold;

step three: and (5) precision machining.

Mixing carbon fibers and ammonia phenolic resin according to a ratio of 5:4 to prepare a prepreg, then placing the prepreg in heating equipment for drying at the drying temperature of 75-85 ℃ for 1h, then placing the prepreg in a brake disc mould, coating a release agent in the mould before placing, then preheating for 10min, starting a hydraulic press, pre-pressing the prepreg paved in a cavity of an automobile brake mould by an upper mould, adjusting the temperature to 120-140 ℃, continuing for 1.5h, after the pre-pressing is finished, carrying out secondary pressurization by the hydraulic press, waiting for the mould to be cooled and taken out after finishing the pre-pressing, then carrying out infiltration curing treatment, horizontally immersing a mould piece of the automobile brake disc in a polycarbosilane solution, carrying out infiltration for 1h, then carrying out heat treatment, finally placing the mould piece on a processing machine for fine processing, firstly polishing burrs on the outer surface by a polishing mechanism, and then, pressing a hole in the machined part by matching with a punching device, and finishing the preparation.

In the embodiment, carbon fibers and ammonia phenolic resin are mixed and stirred to prepare a prepreg, the prepreg is heated and dried, the drying temperature is 75-85 ℃, the drying is continued for 1 hour, a release agent is coated inside a mold, the anti-adhesion function of the release agent is utilized, a workpiece can be conveniently and quickly demoulded, the function of quickly taking the workpiece is achieved, the prepreg is placed into a brake disc mold, a hydraulic press is started, the prepreg is pre-pressed, the temperature is adjusted to 120-140 ℃ during pressing and is continued for 1.5 hours, secondary pressurization is carried out in the same way, the prepreg is placed into a container after being cooled and taken out, a polycarbosilane solution is added for impregnation and solidification, the prepreg is heated again, the workpiece is placed on a processing machine tool for fine processing, and the workpiece is polished and trimmed.

Example 4

As shown in fig. 1 to 8, on the basis of embodiment 2, the present invention provides a technical solution: preferably, the grinding mechanism comprises a power motor 6, a rotating shaft 61 is fixedly connected to the output of the power motor 6, a grinding sheet 62 is fixedly sleeved at the bottom of the rotating shaft 61, a protecting sleeve 63 is arranged on one side of the grinding sheet 62, a cleaning pad 631 is fixedly mounted on the inner wall of the protecting sleeve 63, and a cleaning brush 632 is fixedly mounted on the surface of the cleaning pad 631.

In this embodiment, provide power through power motor 6, it is rotatory to drive rotation axis 61 and polishing piece 62, reach the rotatory function of polishing the machined part, cooperation polishing piece 62 is rotatory inside through lag 63, make clearance pad 631 and the 62 surface contact of polishing piece, reach clearance pad 631 friction polishing piece 62 surface chipping's function, utilize the function of cleaning of frictional force and clearance brush 632, reach and clean the piece function, avoid the sweeps to bounce back to the polishing piece, make polishing piece 62 when rotatory cutting, cause polishing piece 62 secondary wear's problem, be favorable to the device to increase safeguard function.

The working principle of the device and the method for manufacturing the automobile brake disc is described in detail below.

As shown in fig. 1-8, the cover 2 is opened by manual turning, the workpiece is placed on the conveyor 15, the electric driving telescopic rod 191 moves telescopically to push the clamping plate 192 to press on both sides of the workpiece to achieve clamping and fixing in the horizontal direction, then the reset buffer post 193 pushes and presses on the side surface of the blocking plate 194 while clamping, so that the workpiece generates vibration force during processing, and then the vibration force is transmitted to the reset buffer post 193 by the blocking plate 194, and the action force is consumed by using the flexibility of the reset buffer post 193 and the elasticity of an external spring to achieve the effect of buffering and damping, so as to increase the stability of the clamping mechanism, and in addition, the electric driving telescopic post is matched to push the moving ring to slide outside the sliding post, so that the moving ring drives the limit rod 196 to move, so that the limit rod 196 drives the pipe sleeves 197 to be clamped on the upper and lower sides of the workpiece, the effect of longitudinal clamping and fixing is achieved, the rubber pad 198 is contacted with a workpiece, acting force is consumed by utilizing the flexibility of the rubber pad 198 and the sponge pressing pad 1981, then the sponge pressing pad 1981 is stressed and compressed, the pressing plate 1982 is driven to extrude the rubber pressing column 1983, buffering acting force is performed by matching with the flexibility of the rubber pressing column 1983, the stability of the workpiece is further improved, then the workpiece is processed by the polishing device 12, after the processing of the polishing device 12 is finished, the sliding block 19 is matched to move at the top of the driving sliding plate 18 to drive the workpiece to move to the bottom of the punching device 13 for processing, and when the device is processed, chips easily remained at the top of the transmission belt 15 are driven to the bottom of the inner cavity of the preparation machine tool body 1 by matching with the movement of the transmission belt 15, the telescopic connecting rod 157 is matched with electric power to drive the supporting column 156 and the pulley 155 to move in the sliding chute 154, when the pulley 155 moves to the left, the adjusting plate 152 is forced to push the central shaft to drive the friction shaft pad 151 to press against the bottom surface of the transmission belt 15, and the friction force of the friction particles 1511 contacting with the surface of the transmission belt 15 is utilized to achieve the function of cleaning the debris on the surface of the transmission belt 15

The present invention has been described in general terms in the foregoing, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto based on the present invention. Therefore, modifications or improvements are within the scope of the invention without departing from the spirit of the inventive concept.

Claims

1. The utility model provides a preparation facilities of automobile brake disc, is including preparing lathe main part (1), protective glass lid (2), control panel (3), discharge gate (4) and unable adjustment base (5), the movable surface mounting of preparing lathe main part (1) has sealed lid (2), the front of preparing lathe main part (1) and the left side fixed mounting who is located sealed lid (2) have control panel (3), discharge gate (4) have been seted up on the right side of preparing lathe main part (1), the bottom fixed mounting of preparing lathe main part (1) has unable adjustment base (5), its characterized in that: a moving frame (11) is fixedly arranged in the preparation machine tool main body (1), a polishing device (12) is movably arranged at one end of the outer side of the moving frame (11), and a punching device (13) is movably arranged at the other end of the moving frame;

a conveying belt (15) is arranged at the bottom of an inner cavity of the preparation machine tool main body (1), driving sliding plates (18) are fixedly mounted on two sides of the conveying belt (15), sliding blocks (19) are movably mounted at the tops of the driving sliding plates (18), telescopic rods (191) are fixedly mounted on the side faces of the sliding blocks (19), and clamping plates (192) are fixedly mounted at the other ends of the telescopic rods (191);

the bottom of transmission band (15) is provided with friction shaft pad (151), the inside movable mounting of friction shaft pad (151) has the center pin, the one end fixedly connected with regulating plate (152) of center pin, the other end movable mounting of regulating plate (152) has fixed axle (153).

2. The manufacturing device of the automobile brake disc according to claim 1, characterized in that: the two ends of the inner side of the transmission belt (15) are provided with rotating wheels (16), and the back of each rotating wheel (16) is provided with a driving motor (17).

3. The manufacturing device of the automobile brake disc according to claim 1, characterized in that: the inner side of the clamping plate (192) is fixedly provided with a resetting buffer column (193), and the other end of the resetting buffer column (193) is provided with a blocking plate (194).

4. The manufacturing device of the automobile brake disc according to claim 1, characterized in that: the utility model discloses a clamp plate, including grip block (192), connecting plate (195) and connecting plate (195), the inside fixed mounting of connecting plate (195) has the traveller, the outside movable mounting of traveller has the shift ring, the side fixedly connected with gag lever post (196) of shift ring, the flexible post of side fixedly connected with of shift ring, the other end setting of flexible post is in the inside of connecting plate (195).

5. The manufacturing device of the automobile brake disc according to claim 4, characterized in that: the limiting rod (196) is movably sleeved with a pipe sleeve (197) at one end far away from the connecting plate (195), a rubber pad (198) is fixedly installed on the surface of the inner side of the pipe sleeve (197), a sponge pressure pad (1981) is fixedly installed on the inner side of the rubber pad (198), a pressure plate (1982) is fixedly installed inside the sponge pressure pad (1981), and a rubber pressure column (1983) is arranged on the inner side of the pressure plate (1982).

6. The manufacturing device of the automobile brake disc according to claim 1, characterized in that: spout (154) have been seted up to the bottom of regulating plate (152), the inside movable mounting of spout (154) has pulley (155), the bottom movable mounting of pulley (155) has support column (156), the bottom fixedly connected with telescopic connection pole (157) of support column (156), the other end fixed mounting of telescopic connection pole (157) is on the inner wall of preparation lathe main part (1).

7. The manufacturing device of the automobile brake disc according to claim 1, characterized in that: fixed surface of friction shaft pad (151) installs friction granule (1511), the inside fixed mounting of friction shaft pad (151) has atmospheric pressure rubber pad (1512), the inside fixed mounting of atmospheric pressure rubber pad (1512) has gasbag piece (1513), the inboard setting of atmospheric pressure rubber pad (1512) is in the outside of center pin.

8. A preparation method of an automobile brake disc is characterized by comprising the following steps: the preparation method of the automobile brake disc comprises the following steps:

the method comprises the following steps: preparing a mixed material;

step two: molding a mold;

step three: and (5) precision machining.

9. The method for preparing the automobile brake disc according to claim 8, wherein the method comprises the following steps: mixing carbon fibers and ammonia phenolic resin according to a ratio of 5:4 to prepare a prepreg, then placing the prepreg in heating equipment for drying at the drying temperature of 75-85 ℃ for 1h, then placing the prepreg in a brake disc mould, coating a release agent in the mould before placing, then preheating for 10min, starting a hydraulic press, pre-pressing the prepreg paved in a cavity of an automobile brake mould by an upper mould, adjusting the temperature to 120-140 ℃, continuing for 1.5h, after the pre-pressing is finished, carrying out secondary pressurization by the hydraulic press, waiting for the mould to be cooled and taken out after finishing the pre-pressing, then carrying out infiltration curing treatment, horizontally immersing a mould piece of the automobile brake disc in a polycarbosilane solution, carrying out infiltration for 1h, then carrying out heat treatment, finally placing the mould piece on a processing machine for fine processing, firstly polishing burrs on the outer surface by a polishing mechanism, and then, pressing a hole in the machined part by matching with a punching device, and finishing the preparation.

10. The method for preparing the automobile brake disc according to claim 9, wherein the method comprises the following steps: grinding machanism includes power motor (6), the output fixedly connected with rotation axis (61) of power motor (6), the fixed cover in bottom of rotation axis (61) has connect polishing piece (62), one side of polishing piece (62) is provided with lag (63), the inner wall fixed mounting of lag (63) has clearance pad (631), the fixed surface of clearance pad (631) installs clearance brush (632).