A vehicle hub brake grinding machine and use method thereof

Abstract

This invention proposes a wheel hub brake grinding machine and its usage method, including a base frame, a processing table mounted on the base frame, a fixing groove provided on the processing table, a grinding device, a pushing device, and a clamping device also mounted on the processing table, an installation hole provided in the fixing groove, and the grinding device located in the installation hole. The grinding device includes an elastic mandrel, a mandrel, a bearing seat, a toothed pulley, a main shaft, a grinding wheel, a feeding plate, and a baffle. The clamping device includes a square vertical plate, a crossbeam, a guide plate, a guide post, and a push rod. The pushing device includes a cylinder bracket, a small shaft, a large shaft, and a fixed bracket. This invention enables the replacement of corresponding elastic mandrels for different types of wheel hub brakes, solving the problem of processing and replacing wheel hub brakes of multiple specifications. Furthermore, the grinding wheel is designed with an inner round cup, providing sufficient chip space and chip removal capacity.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical manufacturing, in particular to a hub brake grinder for a vehicle and a use method thereof. Background Art

[0002] With the development of science and society, electric vehicles and power-assisted vehicles can be seen everywhere in our lives. Among them, the electric vehicle hub brake mainly includes a hub brake shell, a wheel hub, two mutually hinged arc-shaped brake blocks, an eccentric cam and a brake rod. In actual use, the brake rod drives the eccentric cam to rotate, and the two arc-shaped brake blocks are opened outward so that the arc-shaped brake blocks press against the inner wall of the wheel hub to reach the dead point, which is used for braking the vehicle.

[0003] The three-dimensional diagram of the hub brake of an electric bicycle is as follows Figure 1 and Figure 2 The specific assembly diagram is shown in Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, the hub brake of an electric vehicle is a braking device of the electric vehicle. Since the inner diameter of the hub is Φ110, in order to maximize the braking force of the hub brake and achieve the best braking effect, the outer diameter of the brake block (commonly known as: horseshoe block) containing two friction materials in the hub brake must reach Φ110 in the working state. However, the hub brake grinding machine in the existing technology has a complex structure and high cost, and the grinding machine is usually a machine with a fixed rod, which can only be applied to the same category of hub brakes, and it is troublesome to disassemble and assemble. Summary of the invention

[0004] In order to solve the above technical problems, the present invention proposes a vehicle hub brake grinder and a method of using the same, which can realize the replacement of corresponding elastic core shafts for hub brakes of different types, solve the problem of processing and replacement of hub brakes of various types and specifications, and the grinding wheel is designed as an inner circular bowl, so that it has sufficient chip holding space and chip removal capacity.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] A hub brake grinding machine for a vehicle, characterized in that it includes a base frame, a processing table is installed above the base frame, a fixing groove is arranged on the processing table, a grinding device, a pushing device and a clamping device are also installed on the processing table, a mounting hole is arranged in the fixing groove, the grinding device is located in the mounting hole, the grinding device includes an elastic mandrel, a mandrel, a bearing seat, a toothed belt wheel, a spindle, a grinding wheel, a feeding plate and a baffle, the bearing seat is fixed below the processing table, a spindle mounting hole is opened along the height direction of the bearing seat, and the spindle rotates The toothed belt wheel is fixedly mounted in the main shaft mounting hole, the toothed belt wheel fixing sleeve is arranged on the outer wall of the main shaft, a core shaft mounting hole is opened along the height direction of the main shaft, the core shaft is installed in the core shaft mounting hole, a gap is provided between the core shaft and the inner wall of the main shaft, a grinding wheel is fixedly mounted on the end of the main shaft, an elastic core rod is fixed on the end of the core shaft, the elastic core rod is located in the grinding wheel, the baffle cover is installed above the elastic core rod, the feed plate is installed above the baffle cover, the grinding wheel is located in the fixed groove, the grinding wheel is in the shape of an inner circular bowl, and a metal The metal grinding surface is arranged at intervals on the inner wall of the grinding wheel, and the metal grinding surface is coated with abrasives. The clamping device includes a square plate, a crossbeam, a guide plate, a guide column and a push rod. The square plate and the guide column are respectively fixed vertically on the processing table, and the guide column is located on the inner side of the square plate. The crossbeam is transversely connected to the end of the square plate, and the guide plate is transversely connected to the end of the guide column. Through holes are respectively provided on the guide plate and the crossbeam. The push rod passes through the through hole on the guide plate and is fixed on the guide plate. A first cylinder is fixed above the crossbeam. The first cylinder is connected to the push rod through the through hole on the crossbeam, and a feed plate is installed under the push rod. The feed plate is located directly above the fixed groove and is located on the same vertical line as the elastic core rod. The pushing device includes a cylinder bracket, a small shaft, a large shaft and a fixed bracket. The cylinder bracket and the fixed bracket are respectively fixed on the processing table. The second cylinder is installed on the cylinder bracket. The large shaft passes through the fixed bracket. The second cylinder is connected to the large shaft through the small shaft. A limiting push plate is installed at one end of the large shaft, and the limiting push plate is located on one side of the fixed groove.

[0007] In the above structure: the present invention proposes a hub brake grinding machine for a vehicle, comprising a base frame, a processing table is installed above the base frame, a fixing groove is arranged on the processing table, a grinding device, a pushing device and a clamping device are also installed on the processing table, the grinding device comprises an elastic mandrel, a mandrel, a bearing seat, a toothed belt wheel, a main shaft, a grinding wheel, a feeding plate and a baffle, the clamping device comprises a square plate, a crossbeam, a guide plate, a guide column and a push rod, the pushing device comprises a cylinder bracket, a small shaft, a large shaft and a fixing bracket, the clamping device comprises a small shaft, a large shaft and a fixing bracket, and the clamping device comprises a small shaft, a large shaft and a fixing bracket. The device is used to clamp and fix the hub brake, the pushing device is used to simulate the hub brake in the braking state for grinding, and the grinding device is used to grind the fixed hub brake. The hub brake sleeve is set on the feeding plate, and the push rod is driven downward by the first cylinder to make the push rod push the feeding plate downward, so that the feeding plate is against the elastic core rod, and then the hub brake on the feeding plate is clamped and fixed in the fixing groove below it. After clamping and fixing, the inner hole of the hub brake contacts the inner wall metal grinding surface of the grinding wheel. Different types of hub brakes can be replaced relatively The corresponding elastic mandrel solves the processing and replacement problems of hub brakes of various varieties and specifications, and its loading, unloading and clamping efficiency is also high. The second cylinder in the pushing device located on one side of the fixed groove drives the small shaft and the large shaft to push forward, and the limit push plate installed on the large shaft supports the pull rod crank on the hub brake, so that the horseshoe block group is in an open state, so as to realize the simulation of the hub brake being kept in a braking state for grinding. The output shaft of the motor is meshed and connected with the toothed belt wheel, so that the toothed belt wheel drives the main shaft to rotate, and the grinding wheel installed at the end of the main shaft will rotate therewith, and the grinding wheel can realize the grinding of the brake block on the hub brake. The grinding wheel is designed as an inner circular bowl shape, so that it has sufficient chip holding space and chip removal capacity. The grinding surface of the inner wall of the grinding wheel is set as a metal grinding surface, and a metal body is adopted. The method of coating abrasive can save costs, is easy to replace, and can be reused. After the grinding is completed, the first cylinder drives the push rod to move downward, so that it is connected to the feed plate, and the first cylinder drives the push rod to move upward, driving the feed plate to move upward, and bringing out the ground hub brake.

[0008] Further: the grinding device also includes a first flange, a second flange and a third flange, the first flange and the second flange are respectively installed at both ends of the main shaft, the grinding wheel is fixed on the first flange, the toothed belt pulley is sleeved on the main shaft and fixed to the second flange by a locking nut, the third flange is installed on the bearing seat, and the bearing seat is fixed under the processing table through the third flange.

[0009] In the above structure: a first flange, a second flange and a third flange are respectively arranged on the main shaft and the bearing seat, for fixing the grinding wheel, the toothed belt wheel and the bearing seat.

[0010] Further: it also includes a first spacer, a second spacer, a third spacer and a fourth spacer, the first spacer is installed on the outer wall of the core shaft, the second spacer is installed on the inner wall of the main shaft, and the third spacer and the fourth spacer are respectively installed in the bearing seat.

[0011] In the above structure: the first spacer is installed on the outer wall of the core shaft, the second spacer is installed on the inner wall of the main shaft, the third spacer and the fourth spacer are respectively installed in the bearing seat, and the first spacer, the second spacer, the third spacer and the fourth spacer are respectively used to realize the protection between the core shaft, the main shaft and the bearing seat.

[0012] Furthermore: the processing table is provided with fixing holes, and the square vertical plate and the guide column are fixed on the fixing holes by screws respectively.

[0013] In the above structure: the square plate and the guide column are fixed to the fixing holes by screws respectively, so that the installation and fixation of the square plate and the guide column are realized.

[0014] Further: the pushing device also includes a screw ring, a washer and a screw sleeve, the screw ring is installed at the connection between the second cylinder and the small shaft, the washer is sleeved on the outer wall of the large shaft, a through hole is provided on the fixed bracket, the screw sleeve is installed in the through hole, and the large shaft passes through the screw sleeve.

[0015] In the above structure, by installing the screw sleeve on the fixed bracket, not only the large shaft is fixed but also its extension and retraction are convenient. The screw ring is installed at the connection between the second cylinder and the small shaft to protect the connection between the two.

[0016] Furthermore: the abrasive is artificial diamond abrasive.

[0017] In the above structure, the abrasive is artificial diamond abrasive, which can save costs.

[0018] Furthermore: it also includes a motor, which is fixed on the base frame and located below the processing table. A gear is installed on the output shaft of the motor, and the gear is meshed and connected with the toothed belt wheel.

[0019] In the above structure: a gear is installed on the output shaft of the motor, and the gear is meshed with the toothed belt wheel to realize that the motor drives the toothed belt wheel to rotate, and the toothed belt wheel drives the main shaft and the grinding wheel installed on the main shaft to rotate, thereby grinding the hub brake.

[0020] Further: it also includes a dustproof device, the dustproof device includes a dustproof cylinder and a fan, the dustproof cylinder is fixed on the base frame, the fan is installed in the dustproof cylinder, and the dustproof cylinder is installed opposite to the fixing groove.

[0021] In the above structure: the fan is installed in the dustproof cylinder, and the fan rotates to suck the powder after grinding into the dustproof cylinder and discharge it through the other end to prevent the powder from accumulating on the bottom frame.

[0022] A method for using a hub brake grinder for a vehicle, characterized in that it comprises the following steps:

[0023] Step 1: Fix and clamp the hub brake, set the hub brake sleeve on the feeding plate, start the first cylinder, drive the push rod to move downward, drive the feeding plate to move downward together, make it abut against the elastic mandrel, clamp and fix the hub brake on the feeding plate in the fixed groove below it, so that the brake block in the hub brake contacts the metal grinding surface on the inner wall of the grinding wheel fixed in the fixed groove. After clamping and fixing the hub brake, the first cylinder drives the push rod to rise;

[0024] Step 2: To simulate the hub brake in the braking state, the second cylinder in the pusher device located on one side of the fixed groove drives the small shaft and the large shaft to push forward, and the limit push plate installed on the large shaft supports the pull rod crank on the hub brake, so that the horseshoe block group is in an open state, so as to achieve the simulation of grinding the hub brake in the braking state;

[0025] Step 3: Grind the brake block in the hub brake, start the motor, and mesh the output shaft of the motor with the toothed belt pulley. The motor drives the toothed belt pulley to rotate, and the toothed belt pulley drives the spindle to rotate. The grinding wheel installed on the end of the spindle will rotate together, and the brake block in contact with the metal grinding surface of the inner wall of the grinding wheel will be ground under the friction of the metal grinding surface. After the grinding is completed, the first cylinder drives the push rod to move downward so that it is connected to the feed plate. The first cylinder drives the push rod to move upward, driving the feed plate to move upward, bringing out the ground hub brake.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. The elastic mandrel is elastic. After the hub brake is put on, it is positioned by the positioning and clamping method of the vertical elastic mandrel. Different types of hub brakes can replace the corresponding elastic mandrels, which solves the processing and replacement problems of hub brakes of various varieties and specifications. In addition, the efficiency of loading, unloading, clamping and fixing is also high.

[0028] 2. The grinding wheel is designed as an inner circular bowl shape, which has sufficient chip holding space and chip removal capacity. The grinding material uses artificial diamond abrasives, and adopts a metal body and a coated abrasive method, which can save costs, is easy to replace, and can be reused.

[0029] 3. The processing method of the horseshoe block group can be designed into an internal grinding wheel according to the actual braking process and related principles; after the hub brake brake is assembled, the φ110 outer circle composed of two horseshoe blocks is ground in the braking state. This process method can reduce the problem of assembly cumulative errors, and at the same time reduce the manufacturing accuracy requirements of individual parts; it can also reduce the problem of insufficient dynamics of mechanical structure principles. Improve production efficiency and ensure the reliable quality of the brake.

[0030] 4. In view of the different rotation directions of the pull rod crank, a symmetrical design method is adopted to manufacture some parts and change the installation method, so that different types of rotation directions can be processed on one special machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the three-dimensional structure of the hub brake of an electric bicycle;

[0032] Figure 2 It is a schematic diagram of the bottom surface structure of the hub brake of an electric bicycle;

[0033] Figure 3 It is a top view of the hub brake of an electric bicycle;

[0034] Figure 4 This is the front view of the hub brake of an electric bicycle;

[0035] Figure 5 It is a cross-sectional view of the hub brake of an electric bicycle;

[0036] Figure 6 yes Figure 3 Center A view.

[0037] Figure 7 It is a three-dimensional structural schematic diagram of a hub brake grinding machine for an electric bicycle;

[0038] Figure 8 This is a schematic diagram of the grinding state of a hub brake grinder for an electric bicycle;

[0039] Fig. 9 is a schematic cross-sectional view of a grinding device in a grinding machine;

[0040] Fig.10 It is a schematic diagram of the grinding wheel structure in a grinding machine;

[0041] Fig.11 It is a schematic cross-sectional view of a material pusher device in a grinding machine;

[0042] Fig.12 It is a schematic cross-sectional view of the clamping device in the grinding machine.

[0043] List of reference numerals:

[0044] 1. Gate box; 2. Support shaft; 3. Bushing; 4. Drawbar crank; 5. Hexagonal bolt; 6. Hexagonal flange nut; 7. Torsion spring; 8. Horseshoe block group; 9. Rotating shaft; 10. Grinding device; 11. Pushing device; 12. Clamping device; 13. Base frame; 14. Fixed slot; 15. Motor; 16. Feeding plate; 17. Dustproof cylinder; 18. Shield; 19. First cylinder; 20. Second cylinder; 21. Metal grinding surface; 101. Elastic mandrel; 102. First flange; 103. First spacer; 104. Second spacer; 105. Mandrel; 106. Bearing seat; 107. Locking nut; 108. Second flange; 109. Toothed pulley; 1091. Third spacer; 1092. Fourth spacer; 1093. Third flange; 1094. Spindle; 1095. Grinding wheel; 111. Cylinder bracket; 112. Thread ring; 113. Small shaft; 114. Washer; 115. Large shaft; 116. Fixed bracket; 117. Thread sleeve; 121. Square plate; 122. Crossbeam; 123. Guide plate; 124. Guide column; 125. Screw; 126. Push rod. DETAILED DESCRIPTION

[0045] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0046] like Figure 7-12As shown: The present invention proposes a hub brake grinding machine for a vehicle, comprising a base frame 13, a processing table is installed above the base frame 13, a fixing groove 14 is arranged on the processing table, a grinding device 10, a pushing device 11 and a clamping device 12 are also installed on the processing table, a mounting hole is arranged in the fixing groove 14, the grinding device 10 is located in the mounting hole, the grinding device 10 comprises an elastic mandrel 101, a mandrel 105, a bearing seat 106, a toothed belt wheel 109, a spindle 1094, a grinding wheel 1095, a feeding plate 16 and a baffle 18, the bearing seat 106 is fixed below the processing table, a spindle mounting hole is opened along the height direction of the bearing seat 106, the spindle 1094 is rotatably mounted on the spindle mounting hole The toothed belt wheel 109 is fixedly sleeved on the outer wall of the main shaft 1094, and a core shaft mounting hole is opened along the height direction of the main shaft 1094. The core shaft 105 is installed in the core shaft mounting hole. There is a gap between the core shaft 105 and the inner wall of the main shaft 1094. A grinding wheel 1095 is fixedly installed at the end of the main shaft 1094. An elastic core rod 101 is fixed at the end of the core shaft 105. The elastic core rod 101 is located in the grinding wheel 1095. The grinding wheel 1095 is located in the fixed groove 14. The baffle 18 is installed above the elastic core rod 101. The feeding plate 16 is installed above the baffle 18. The grinding wheel 1095 is in the shape of an inner circular bowl, and the inner wall of the grinding wheel 1095 is provided with a metal grinding surface 21 The metal grinding surface 21 is arranged at intervals on the inner wall of the grinding wheel 1095, and the metal grinding surface 21 is coated with abrasive. The clamping device 12 includes a square plate 121, a crossbeam 122, a guide plate 123, a guide column 124 and a push rod 126. The square plate 121 and the guide column 124 are respectively vertically fixed on the processing table, and the guide column 124 is located on the inner side of the square plate 121. The crossbeam 122 is transversely connected to the end of the square plate 121, and the guide plate 123 is transversely connected to the end of the guide column 124. Through holes are respectively provided on the guide plate 123 and the crossbeam 122. The push rod 126 passes through the through hole on the guide plate 123 and is fixed on the guide plate 123. A first cylinder 19 is fixed above the crossbeam 122. The first cylinder 19 passes through the through hole on the crossbeam 122 to connect the push rod 126, and a feed plate 16 is installed under the push rod. The feed plate 16 is located directly above the fixed groove 14 and is located on the same vertical line as the elastic core rod 101. The pushing device 11 includes a cylinder bracket 111, a small shaft 113, a large shaft 115 and a fixed bracket 116. The cylinder bracket 111 and the fixed bracket 116 are respectively fixed on the processing table. The second cylinder 20 is installed on the cylinder bracket 111, the large shaft 115 passes through the fixed bracket 116, and the second cylinder 20 is connected to the large shaft 115 through the small shaft 113. A limiting push plate is installed at one end of the large shaft 115, and the limiting push plate is located on one side of the fixed groove 14.

[0047] The present invention proposes a hub brake grinding machine for a vehicle, comprising a base frame 13, a processing table is installed on the base frame 13, a fixing groove 14 is arranged on the processing table, a grinding device 10, a pushing device 11 and a clamping device 12 are also installed on the processing table, the grinding device 10 comprises an elastic mandrel 101, a mandrel 105, a bearing seat 106, a toothed belt wheel 109, a spindle 1094, a grinding wheel 1095, a feeding plate 16 and a baffle 18, the clamping device 12 comprises a square plate 121, a crossbeam 122, a guide plate 123, a guide column 124 and a push rod 126, the pushing device 11 comprises a guide plate 124, a guide plate 126, a guide plate 127, a guide plate 128, a guide plate 129, a guide plate 121, a guide plate 122, a guide plate 123, a guide column 124 and a push rod 126, and a push device 11 comprises a guide plate 124, a guide plate 126, a guide plate 127, a guide plate 128, a guide plate 129 ... 11 includes a cylinder bracket 111, a small shaft 113, a large shaft 115 and a fixed bracket 116, a clamping device 12 is used to clamp and fix the hub brake, a grinding device 10 is used to grind the fixed hub brake, a pushing device 11 is used to push away the hub brake after grinding, and the hub brake is sleeved on the feeding plate 16, and the push rod 126 is driven by the first cylinder 19 to move downward, so that the push rod 126 pushes the feeding plate 16 to move downward, so that the feeding plate 16 is against the elastic core rod 101, and then the hub brake on the feeding plate 16 is clamped and fixed in the fixing groove 14 below it, and the hub brake after clamping and fixing The inner hole contacts the metal grinding surface 21 of the inner wall of the grinding wheel 1095. Different types of hub brakes can replace the corresponding elastic mandrel 105, which solves the problem of processing and replacing hub brakes of multiple varieties and specifications. The efficiency of loading, unloading, clamping and fixing is also high. The second cylinder 20 in the pushing device 11 on one side of the fixing groove 14 drives the small shaft 113 and the large shaft 115 to push forward, and the limit push plate installed on the large shaft 115 supports the pull rod crank 4 on the hub brake, so that the horseshoe block 8 group is in an open state, so as to realize the simulation of the hub brake being kept in the braking state for grinding, and the output shaft of the motor is connected to the toothed belt wheel 10 9 meshing connection, so that the toothed pulley 109 drives the main shaft 1094 to rotate, and the grinding wheel 1095 installed at the end of the main shaft 1094 will rotate therewith, and the grinding wheel 1095 can grind the brake block on the hub brake. The grinding wheel 1095 is designed to be an inner circular bowl shape, so that it has sufficient chip accommodating space and chip removal capacity. The grinding surface of the inner wall of the grinding wheel 1095 is set as a metal grinding surface 21, which adopts a metal body and abrasive coating. It can save costs, is easy to replace, and can be reused. After the grinding is completed, the first cylinder 19 drives the push rod 126 to move upward to bring out the ground hub brake.

[0048] In this embodiment: the grinding device 10 further includes a first flange 102, a second flange 108 and a third flange 1093. The first flange 102 and the second flange 108 are respectively installed at both ends of the main shaft 1094. The grinding wheel 1095 is fixed on the first flange 102. The toothed belt wheel 109 is sleeved on the main shaft 1094 and fixed on the second flange 108 by a locking nut 107. The third flange 1093 is installed on the bearing seat 106. The bearing seat 106 is fixed below the processing table by the third flange 1093. The first flange 102, the second flange 108 and the third flange 1093 are respectively arranged on the main shaft 1094 and the bearing seat 106, so as to realize the fixation of the grinding wheel 1095, the toothed belt wheel 109 and the bearing seat 106.

[0049] In this embodiment, the first spacer 103, the second spacer 104, the third spacer 1091 and the fourth spacer 1092 are also included. The first spacer 103 is installed on the outer wall of the mandrel 105, the second spacer 104 is installed on the inner wall of the main shaft 1094, and the third spacer 1091 and the fourth spacer 1092 are respectively installed in the bearing seat 106. The first spacer 103 is installed on the outer wall of the mandrel 105, the second spacer 104 is installed on the inner wall of the main shaft 1094, the third spacer 1091 and the fourth spacer 1092 are respectively installed in the bearing seat 106, and the first spacer 103, the second spacer 104, the third spacer 1091 and the fourth spacer 1092 are respectively used to realize the protection between the mandrel 105, the main shaft 1094 and the bearing seat 106.

[0050] In this embodiment: the processing table is provided with a fixing hole, and the square plate 121 and the guide column 124 are respectively fixed to the fixing hole by screws 125. The square plate 121 and the guide column 124 are respectively fixed to the fixing hole by screws 125, so that the installation and fixation of the square plate 121 and the guide column 124 are realized.

[0051] In this embodiment: the pusher device 11 further includes a screw ring 112, a washer 114 and a screw sleeve 117, wherein the screw ring 112 is installed at the connection between the second cylinder 20 and the small shaft 113, the washer 114 is sleeved on the outer wall of the large shaft 115, the fixed bracket 116 is provided with a through hole, the screw sleeve 117 is installed in the through hole, and the large shaft 115 is arranged through the screw sleeve 117. By installing the screw sleeve 117 on the fixed bracket 116, not only the large shaft 115 is fixed but also its extension is convenient, and the screw ring 112 is installed at the connection between the second cylinder 20 and the small shaft 113 to protect the connection between the two.

[0052] In this embodiment, the abrasive is a synthetic diamond abrasive, which can save costs.

[0053] In this embodiment, a motor 15 is also included, the motor 15 is fixed on the base frame 13 and is located below the processing table, and a gear is installed on the output shaft of the motor 15, and the gear is meshed with the toothed belt wheel 109. A gear is installed on the output shaft of the motor 15, and the gear is meshed with the toothed belt wheel 109, so that the motor 15 drives the toothed belt wheel 109 to rotate, and the toothed belt wheel 109 drives the main shaft 1094 and the grinding wheel 1095 installed on the main shaft 1094 to rotate, so as to grind the hub brake.

[0054] In this embodiment, a dustproof device is also included, and the dustproof device includes a dustproof cylinder 17 and a fan. The dustproof cylinder 17 is fixed on the base frame 1, and the fan is installed in the dustproof cylinder 17. The dustproof cylinder 17 is installed opposite to the fixing groove 14. The fan is installed in the dustproof cylinder 17, and the fan rotates to suck the powder after grinding into the dustproof cylinder 17 and discharge it through the other end to prevent the accumulation of powder on the base frame 1.

[0055] A method for using a vehicle hub brake grinder comprises the following steps:

[0056] Step 1: Fix and clamp the hub brake, set the hub brake sleeve on the feed plate 16, start the first cylinder 19, drive the push rod 126 to move downward, drive the feed plate 16 to move downward together, make it abut against the elastic core rod 101, clamp and fix the hub brake on the feed plate 16 in the fixed groove 14 below it, so that the brake block in the hub brake contacts the metal grinding surface 21 on the inner wall of the grinding wheel 1095 fixedly installed in the fixed groove 14, after clamping and fixing the hub brake, remove the feed plate 16 from the push rod 126, and the first cylinder 19 drives the push rod 126 to rise;

[0057] Step 2: To simulate the hub brake in a braking state, the second cylinder 20 in the pushing device 11 located on one side of the fixed groove 14 drives the small shaft 113 and the large shaft 115 to push forward, and the limit push plate installed on the large shaft 115 supports the pull rod crank 4 on the hub brake, so that the horseshoe block group 8 is in an open state, so as to achieve the simulation of grinding the hub brake in a braking state;

[0058] Step 3: Grind the brake block in the hub brake, start the motor 15, and mesh the output shaft of the motor 15 with the toothed belt pulley 109. The motor 15 drives the toothed belt pulley 109 to rotate, and the toothed belt pulley 109 drives the main shaft 1094 to rotate. The grinding wheel 1095 installed at the end of the main shaft 1094 will rotate together, and the brake block in contact with the metal grinding surface 21 of the inner wall of the grinding wheel 1095 will be ground under the friction of the metal grinding surface 21. After the grinding is completed, the first cylinder 19 drives the push rod 126 to move downward so that it is connected to the feed plate 16. The first cylinder 19 drives the push rod 126 to move upward, driving the feed plate 16 to move upward, bringing out the ground hub brake.

[0059] 1. The elastic core rod 101 is elastic. After the hub brake is put on, it is positioned by the positioning and clamping method of the vertical elastic core shaft 105. Different types of hub brakes can replace the corresponding elastic core shaft 105, which solves the problem of processing and replacing hub brakes of multiple types and specifications. In addition, the efficiency of loading, unloading, clamping and fixing is also high.

[0060] 2. The grinding wheel 1095 is designed as an inner circular bowl shape, which has sufficient chip holding space and chip removal capacity. The grinding material uses artificial diamond abrasives, and adopts a metal body and a coated abrasive method, which can save costs, is easy to replace, and can be reused.

[0061] 3. The processing method of the horseshoe block group 8 can be designed to be an internal grinding wheel according to the actual braking process and related principles; after the hub brake brake is assembled, the φ110 outer circle formed by the two horseshoe block groups 8 is ground in the braking state. This process method can reduce the problem of assembly cumulative errors, and at the same time reduce the manufacturing accuracy requirements of individual parts; it can also reduce the problem of insufficient dynamics of mechanical structure principles. Improve production efficiency and ensure the reliable quality of the brake.

[0062] 4. In view of the different rotation directions of the tie rod crank 4, a symmetrical design method is adopted to manufacture some parts and change the installation method, so that the processing of different types of rotation directions can be completed on a special machine.

[0063] The above description is only a preferred embodiment of the present invention and does not constitute any other form of limitation to the present invention. Any modification or equivalent change made based on the technical essence of the present invention still falls within the scope of protection required by the present invention.

Claims

1. A wheel brake grinding machine for a vehicle, characterized in that: The invention comprises a base frame (13), a processing table is installed above the base frame (13), a fixing groove (14) is arranged on the processing table, a grinding device (10), a pushing device (11) and a clamping device (12) are also installed on the processing table, a mounting hole is arranged in the fixing groove (14), the grinding device (10) is located in the mounting hole, the grinding device (10) comprises an elastic mandrel (101), a mandrel (105), a bearing seat (106), a toothed belt wheel (109), a main shaft (1094), a grinding wheel (1095), a feeding plate (16) and a shield (18), the bearing seat (106) is fixed below the processing table, a main shaft mounting hole is opened along the height direction of the bearing seat (106), the main shaft (1094) is rotatably mounted in the main shaft mounting hole, the toothed belt wheel (109) is fixedly sleeved on the outer wall of the main shaft (1094), a core shaft mounting hole is opened along the height direction of the main shaft (1094), the core shaft (105) is mounted in the core shaft mounting hole, and a gap is provided between the core shaft (105) and the inner wall of the main shaft (1094), a grinding wheel (1095) is fixedly mounted on the end of the main shaft (1094), an elastic core rod (101) is fixedly mounted on the end of the core shaft (105), and the elastic core rod (101) is located inside the grinding wheel (1095), the baffle (18) is mounted above the elastic core rod (101), the feed plate (16) is mounted above the baffle (18), and the grinding wheel (1095) is located inside the grinding wheel (1095). The grinding wheel (1095) is in the shape of an inner circular bowl, and the inner wall of the grinding wheel (1095) is provided with a metal grinding surface (21), and the metal grinding surface (21) is arranged at intervals on the inner wall of the grinding wheel (1095). The metal grinding surface (21) is coated with abrasives. The clamping device (12) comprises a square plate (121), a crossbeam (122), a guide plate (123), a guide column (124) and a push rod (126). The square plate (121) and the guide column (124) are respectively fixed vertically on the processing table, and the guide column (124) is located on the inner side of the square plate (121). The crossbeam (122) is transversely connected to the end of the square plate (121), and the guide plate (123) is transversely connected to the guide column (124). The end of the column (124), the guide plate (123) and the cross beam (122) are respectively provided with through holes, the push rod (126) passes through the through holes on the guide plate (123) and is fixed on the guide plate (123), a first cylinder (19) is fixed above the cross beam (122), the first cylinder (19) passes through the through holes on the cross beam (122) and is connected to the push rod (126), the push rod (126) is located directly above the fixed groove (14) and is located on the same vertical line as the elastic core rod (101), the pushing device (11) comprises a cylinder bracket (111), a small shaft (113), a large shaft (115) and a fixed bracket (116), the cylinder bracket (111) and the fixed bracket (116) are respectively fixed on the processing table,A second cylinder (20) is mounted on the cylinder bracket (111), the large shaft (115) passes through the fixed bracket (116), the second cylinder (20) is connected to the large shaft (115) via a small shaft (113), and a limiting push plate is mounted on one end of the large shaft (115), and the limiting push plate is located on one side of the fixed groove (14).

2. A vehicle brake hub grinding machine according to claim 1, characterized in that: The grinding device (10) further comprises a first flange (102), a second flange (108) and a third flange (1093); the first flange (102) and the second flange (108) are respectively mounted on both ends of the main shaft (1094); the grinding wheel (1095) is fixed on the first flange (102); the toothed belt wheel (109) is sleeved on the main shaft (1094) and fixed on the second flange (108) via a locking nut (107); the third flange (1093) is mounted on the bearing seat (106); and the bearing seat (106) is fixed below the processing table via the third flange (1093).

3. A vehicle brake hub grinding machine according to claim 2, characterized in that: It also includes a first spacer (103), a second spacer (104), a third spacer (1091) and a fourth spacer (1092), wherein the first spacer (103) is installed on the outer wall of the core shaft (105), the second spacer (104) is installed on the inner wall of the main shaft (1094), and the third spacer (1091) and the fourth spacer (1092) are respectively installed in the bearing seat (106).

4. The vehicle brake hub grinding machine according to claim 1, characterized in that: The processing table is provided with a fixing hole, and the square plate (121) and the guide column (124) are fixed to the fixing hole by screws (125) respectively.

5. The vehicle brake hub grinding machine according to claim 1, characterized in that: The pushing device (11) further comprises a screw ring (112), a washer (114) and a screw sleeve (117); the screw ring (112) is installed at the connection between the second cylinder (20) and the small shaft (113); the washer (114) is sleeved on the outer wall of the large shaft (115); a through hole is provided on the fixing bracket (116); the screw sleeve (117) is installed in the through hole; and the large shaft (115) is arranged through the screw sleeve (117).

6. The vehicle brake hub grinding machine according to claim 1, characterized in that: The abrasive is artificial diamond abrasive.

7. The vehicle brake hub grinding machine according to claim 1, characterized in that: It also includes a motor (15), which is fixed on the base frame (13) and located below the processing table. A gear is installed on the output shaft of the motor (15), and the gear is meshed with the toothed belt wheel (109).

8. The vehicle brake hub grinding machine according to claim 1, characterized in that: It also includes a dustproof device, which includes a dustproof cylinder (17) and a fan. The dustproof cylinder (17) is fixed on the base frame (13), and the fan is installed in the dustproof cylinder (17). The dustproof cylinder (17) is installed opposite to the fixing groove (14).

9. A method for using a vehicle brake hub grinder according to any one of claims 1 to 8, characterized in that: The steps include: Step 1: Fix and clamp the hub brake, and place the hub brake sleeve on the feed plate (16). The first cylinder (19) is started to drive the push rod (126) to move downward, and push the feed plate (16) to move downward together, so that it abuts against the elastic core rod (101), and the hub brake on the feed plate (16) is clamped and fixed in the fixed groove (14) below it, so that the brake block in the hub brake contacts the metal grinding surface (21) on the inner wall of the grinding wheel (1095) fixedly installed in the fixed groove (14). After the hub brake is clamped and fixed, the first cylinder (19) drives the push rod (126) to rise; Step 2: To simulate the hub brake in a braking state, the second cylinder (20) in the pushing device (11) located on one side of the fixed groove (14) drives the small shaft (113) and the large shaft (115) to push forward, and the limit push plate installed on the large shaft (115) supports the pull rod crank (4) on the hub brake, so that the horseshoe block group (8) is in an open state, so as to achieve the simulation of grinding the hub brake in a braking state; Step 3: Grinding the brake block in the hub brake, start the motor (15), and mesh the output shaft of the motor (15) with the toothed belt wheel (109), the motor (15) drives the toothed belt wheel (109) to rotate, the toothed belt wheel (109) drives the main shaft (1094) to rotate, and the grinding wheel (1095) installed at the end of the main shaft (1094) will rotate together, and the brake block in contact with the metal grinding surface (21) of the inner wall of the grinding wheel (1095) is ground under the friction of the metal grinding surface (21). After the grinding is completed, the first cylinder (19) drives the push rod (126) to move downward so that it is connected to the feeding plate (16), and the first cylinder (19) drives the push rod (126) to move upward, driving the feeding plate (16) to move upward, bringing out the hub brake formed by grinding.

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