Double-spindle switching driving mechanism and automobile brake drum and brake disc repairing all-in-one machine

Abstract

The double-main-shaft switching driving mechanism comprises a machine base, a motor and a speed reducer, the motor is connected with the speed reducer, the motor can rotate forwards and backwards, a first main shaft, a second main shaft and a transmission shaft are pivoted to the machine base, and the central axis of the first main shaft is perpendicular to the central axis of the second main shaft; the speed reducer is provided with an output shaft, two ends of the output shaft extend out of two sides of a speed reducer shell respectively, and one end of the output shaft is connected with the transmission shaft through a gear transmission mechanism to enable the output shaft and the transmission shaft to rotate in opposite directions. The other end of the output shaft is connected with the first main shaft through a second transmission unit; the first transmission unit comprises a first transmission wheel connected with the transmission shaft through a first one-way bearing, and the second transmission unit comprises a second transmission wheel connected with the other end of the output shaft through a second one-way bearing. The invention further provides an automobile brake drum and brake disc repairing all-in-one machine applying the driving mechanism, the brake disc and the brake drum can be machined, and the overall structure is compact.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts repair equipment manufacturing, in particular to a dual-spindle switching drive mechanism and an automobile brake drum and brake disc repairing integrated machine. Background Art

[0002] It is well known that brake drums and brake discs are important components for automobile driving safety. After a period of use, both brake drums and brake discs may wear out and deform due to various factors, thereby affecting the braking effect and causing driving unsafety.

[0003] Therefore, when the brake drum and brake disc are worn and deformed to a certain extent, they must be repaired or replaced with new ones; however, the cost of replacing new ones is high, and the lower-cost method is to use machining to repair them. The existing brake drum and brake disc machining and repair methods mainly use traditional large-scale machine tools for cutting. Since traditional machine tools are large in size and expensive, most car repair centers do not have them, so they cannot provide brake drum and brake disc repair services, and can only replace new brake discs for car owners, which increases the cost of using the car for car owners and causes economic losses.

[0004] Therefore, people began to design repair equipment with a relatively simple structure to repair brake drums and brake discs. For example, on April 8, 2022, a Chinese invention patent with the patent number ZL202123027916.0 and the name "a brake disc repair processing machine tool" was disclosed. It includes a frame, a main bearing seat is arranged on the top of the frame, and a main shaft matching the bearing is arranged at both ends of the main bearing seat. A main motor for driving the main shaft to rotate is arranged inside the frame, a pulley is arranged at one end of the main shaft, and a large nut for tightening the clamp is arranged at the other end of the main shaft. The main motor is connected to the first pulley through the first synchronous belt passing through the frame, and a clamp for clamping the brake disc is arranged in the middle section of the main shaft. A slide rail assembly perpendicular to the main shaft is arranged horizontally on the top of the frame. The repair processing machine tool simplifies the structure, reduces the size of the whole machine, has low cost, and has certain promotion value. However, this repair processing machine tool cannot complete the processing of the brake drum. Users need to purchase equipment to process the brake drum separately, which will increase the user's investment cost and space occupation. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a dual-spindle switching drive mechanism, which can conveniently realize the working switching of the two spindles through one motor, and the two spindles do not interfere with each other, so as to realize the processing of different types of parts on one machine, make the equipment structure compact, reduce space occupancy, and reduce equipment manufacturing costs.

[0006] To achieve the above object, the technical solution of the present invention is: a dual-spindle switching drive mechanism, including a base, a motor, and a reducer, the motor is connected to the reducer, the motor can realize forward and reverse rotation through a control unit, a first spindle and a second spindle are pivotally connected to the base, and the central axis of the first spindle is perpendicular to the central axis of the second spindle;

[0007] The reducer is provided with an output shaft, the two ends of which extend from the two sides of the reducer housing respectively, and a transmission shaft is also pivotally connected to the machine base, one end of the output shaft is connected to the transmission shaft through a gear transmission mechanism so that the rotation direction of the output shaft is opposite to that of the transmission shaft; the transmission shaft is connected to the second main shaft through a first transmission unit, and the other end of the output shaft is connected to the first main shaft through a second transmission unit;

[0008] The first transmission unit includes a first transmission wheel connected to the transmission shaft via a first one-way bearing, and the second transmission unit includes a second transmission wheel connected to the other end of the output shaft via a second one-way bearing.

[0009] Preferably, the gear transmission mechanism includes a first bevel gear fixedly connected to one end of the output shaft and a second bevel gear fixedly connected to the transmission shaft, the central axis of the output shaft is perpendicular to the central axis of the transmission shaft, and the first bevel gear meshes with the second bevel gear. This facilitates the arrangement of the transmission shaft and makes the structure more compact.

[0010] Preferably, the first transmission unit is a synchronous pulley and a synchronous belt transmission mechanism, the first transmission wheel is a first active synchronous pulley, a first driven synchronous pulley is fixedly connected to the second main shaft, and the first transmission wheel and the first driven synchronous pulley are connected through a first synchronous belt;

[0011] The second transmission unit is a synchronous pulley and a synchronous belt transmission mechanism, the second transmission wheel is a second active synchronous pulley, a second driven synchronous pulley is fixedly connected to the first main shaft, and the second transmission wheel and the second driven synchronous pulley are connected through a second synchronous belt.

[0012] As a further improvement, the control unit includes a controller and a direction conversion switch, the direction conversion switch is electrically connected to the controller, and the direction conversion switch is rotated in different directions to control the forward and reverse rotation of the motor through the controller, so as to facilitate the control of the forward and reverse rotation of the motor.

[0013] The dual-spindle switching drive mechanism of the present invention, such as the first one-way bearing and the second one-way bearing, can drive the transmission wheel to rotate clockwise. When the motor rotates forward, if the output shaft of the reducer rotates clockwise, the output shaft can drive the second transmission wheel to rotate clockwise through the second one-way bearing, and the second transmission unit can drive the first spindle to rotate clockwise; at this time, one end of the output shaft drives the transmission shaft to rotate counterclockwise through the gear transmission mechanism. Due to the action of the first one-way bearing, the transmission shaft cannot drive the first transmission wheel to rotate, so the second spindle does not rotate.

[0014] When the motor reverses, the output shaft of the reducer rotates counterclockwise, and one end of the output shaft drives the transmission shaft to rotate clockwise through the gear transmission mechanism. The transmission shaft can drive the first transmission wheel to rotate clockwise through the first one-way bearing, and the first transmission unit can drive the second main shaft to rotate clockwise; at this time, due to the action of the second one-way bearing, the output shaft cannot drive the second transmission wheel to rotate, so the first main shaft does not rotate.

[0015] In this way, it is convenient to switch the first spindle or the second spindle to rotate, so that different types of parts can be processed on the first spindle or the second spindle, so that different types of parts can be processed on one machine. When the first spindle rotates, the second spindle does not rotate, and when the second spindle rotates, the first spindle does not rotate. The two do not interfere with each other and can share a drive motor, making the equipment compact, reducing space occupancy, and reducing the manufacturing cost of the equipment.

[0016] The present invention also provides an integrated automobile brake drum and brake disc repair machine using the above-mentioned dual-spindle switching drive mechanism, which can realize the processing and repair of both brake discs and brake drums on one machine tool, and can share one drive motor. The overall structure is compact, which reduces space occupancy and effectively reduces customer investment costs.

[0017] To achieve the above-mentioned purpose, the technical solution of the present invention is: an integrated machine for repairing automobile brake drums and brake discs, comprising the above-mentioned dual-spindle switching drive mechanism, the first spindle is arranged horizontally, the second spindle is arranged longitudinally, and the machine base is also equipped with a longitudinal tool feeding mechanism that moves back and forth along the longitudinal direction, and the first transverse tool feeding mechanism and the second transverse tool feeding mechanism are installed on the longitudinal tool feeding mechanism, the longitudinal tool feeding mechanism can simultaneously drive the first transverse tool feeding mechanism and the second transverse tool feeding mechanism to move longitudinally, the first transverse tool feeding mechanism and / or the second transverse tool feeding mechanism cooperate with the first spindle to process the brake disc, and the first transverse tool feeding mechanism and / or the second transverse tool feeding mechanism cooperate with the second spindle to process the brake drum.

[0018] As a further improvement, the longitudinal tool feeding mechanism is provided with a longitudinal manual rotating wheel, and the rotation of the longitudinal manual rotating wheel can drive the first transverse tool feeding mechanism and the second transverse tool feeding mechanism to move back and forth in the longitudinal direction, so as to realize manual feeding processing or position adjustment.

[0019] Furthermore, the longitudinal manual rotating wheel is provided with a displaceable manual latch, and the machine base is provided with an electric mechanism, and when the movable manual latch is combined with the electric mechanism, the electric mechanism drives the longitudinal manual rotating wheel to rotate, so as to realize automatic feeding processing.

[0020] Preferably, the first transverse tool feeding mechanism is provided with a first transverse hand wheel, a first transverse tool holder, and a first locking assembly. Rotating the first transverse hand wheel can drive the first transverse tool holder to move back and forth in the transverse direction. The first locking assembly is used to lock the first transverse tool holder to prevent the first transverse tool holder from shifting in the transverse direction. The first transverse tool holder is used to install the first turning tool.

[0021] The second transverse tool feeding mechanism is provided with a second transverse hand wheel, a second transverse tool rest, and a second locking assembly. The second transverse hand wheel can be rotated to drive the second transverse tool rest to move back and forth in the transverse direction. The second locking assembly is used to lock the second transverse tool rest to prevent the second transverse tool rest from shifting in the transverse direction. The second transverse tool rest is used to install the second turning tool, so that the processing position of the first turning tool can be adjusted by the first transverse hand wheel, and the processing position of the second turning tool can be adjusted by the second transverse hand wheel.

[0022] Further improvement, a first locking nut is screwed onto the end of the first main shaft, a first positioning piece is fixedly connected to the first main shaft and is covered with a first clamping sleeve, the first locking nut presses the first clamping sleeve, and the first clamping sleeve and the first positioning piece cooperate to clamp and position the brake disc;

[0023] The second main shaft end is screwed with a second locking nut, the second main shaft is also fixed with a second positioning piece and covered with a second jacket, the second locking nut presses the second jacket, and the second jacket and the second positioning piece cooperate to clamp and position the brake drum, so as to facilitate the clamping and positioning of the brake disc and the brake drum.

[0024] The first positioning member is provided with a plurality of first positioning grooves on one side close to the first locking nut; the second positioning member is provided with a plurality of second positioning grooves on one side close to the second locking nut. The plurality of first positioning grooves facilitate the positioning of the first jacket and the workpiece; the plurality of second positioning grooves facilitate the positioning of the second jacket and the workpiece.

[0025] The automobile brake drum and brake disc repairing machine of the present invention utilizes the above-mentioned dual-spindle switching driving mechanism, and the rotation switching of the first spindle and the second spindle can be realized through a driving motor, and the two do not interfere with each other. The central axes of the first spindle and the second spindle are perpendicular to each other. Combined with the feeding mechanism, it is possible to process and repair both the brake disc and the brake drum on one machine tool. The overall structure is compact, space occupancy is reduced, and customer investment costs are reduced, and it has good promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional diagram of the dual-spindle switching drive mechanism of the present invention;

[0027] Figure 2 It is a schematic diagram of the present invention in which the first main shaft rotates and the second main shaft does not rotate;

[0028] Figure 3It is a schematic diagram of the present invention in which the first main shaft does not rotate and the second main shaft rotates;

[0029] Figure 4 It is a front perspective view of the integrated machine for repairing automobile brake drum and brake disc of the present invention;

[0030] Figure 5 It is a rear perspective view of the integrated machine for repairing automobile brake drums and brake discs of the present invention;

[0031] Figure 6 It is a three-dimensional schematic diagram of a brake disc processed by the automobile brake drum and brake disc repairing integrated machine of the present invention;

[0032] Figure 7 The invention is a three-dimensional schematic diagram of a brake drum processed by the automobile brake drum and brake disc repairing integrated machine. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0034] Figure 1 , Figure 5 As shown, a dual-spindle switching drive mechanism includes a base 1, a motor 2, and a reducer 3. The motor 2 is connected to the reducer 3 and installed on the base 1. The motor 2 can realize forward and reverse rotation through the control unit 4. The base 1 is pivotally connected with a first spindle 5, a second spindle 6 and a transmission shaft 7. The central axis of the first spindle 5 is perpendicular to the central axis of the second spindle 6, the central axis of the transmission shaft 7 is perpendicular to the central axis of the first spindle 5, and the central axis of the transmission shaft 7 is parallel to the central axis of the second spindle 6.

[0035] The reducer 3 is provided with an output shaft 31, the central axis of the motor 2 driving shaft is perpendicular to the central axis of the output shaft 31, the central axis of the output shaft 31 is parallel to the central axis of the first main shaft 5, and the two ends of the output shaft 31 extend from the two sides of the reducer 3 housing respectively. One end of the output shaft 31 is connected to the transmission shaft 7 through a gear transmission mechanism 8 so that the rotation direction of the output shaft 31 is opposite to the rotation direction of the transmission shaft 7; the gear transmission mechanism 8 includes a first bevel gear 81 fixedly connected to one end of the output shaft 31 and a second bevel gear 82 fixedly connected to the transmission shaft 7. The central axis of the output shaft 31 is perpendicular to the central axis of the transmission shaft 7, and the first bevel gear 81 is meshed with the second bevel gear 82.

[0036] The transmission shaft 7 is connected to the second main shaft 6 through the first transmission unit 70, and the other end of the output shaft 31 is connected to the first main shaft 5 through the second transmission unit 30; the first transmission unit 70 includes a first transmission wheel 71, and the first transmission wheel 71 is connected to the transmission shaft 7 through a first one-way bearing 72; the second transmission unit 30 includes a second transmission wheel 32, and the second transmission wheel 32 is connected to the other end of the output shaft 31 through a second one-way bearing 33.

[0037] The first transmission unit 70 is a synchronous pulley and synchronous belt transmission mechanism, the first transmission wheel 71 is a first active synchronous pulley, a first driven synchronous pulley 73 is fixedly connected to the second main shaft 6, and the first transmission wheel 71 is connected to the first driven synchronous pulley 73 through a first synchronous belt 74;

[0038] The second transmission unit 30 is a synchronous pulley and synchronous belt transmission mechanism, the second transmission wheel 32 is a second active synchronous pulley, a second driven synchronous pulley 34 is fixedly connected to the first main shaft 5, and the second transmission wheel 32 is connected to the second driven synchronous pulley 34 through a second synchronous belt 35.

[0039] The control unit 4 includes a controller 41 and a direction conversion switch 42 . The direction conversion switch 42 is electrically connected to the controller 41 . The direction conversion switch 42 is rotated in different directions to control the motor 2 to rotate forward and reverse through the controller 41 .

[0040] The working principle of the dual-spindle switching drive mechanism in this embodiment is as follows:

[0041] like Figure 2 As shown, when the direction conversion switch 42 is turned to make the motor 2 rotate forward, the output shaft 31 of the reducer 3 rotates clockwise, and the output shaft 31 drives the second transmission wheel 32 to rotate clockwise through the second one-way bearing 33, and the second transmission wheel 32 drives the second driven synchronous pulley 34 and the first main shaft 5 to rotate clockwise through the second synchronous belt 35; at this time, one end of the output shaft 31 drives the transmission shaft 7 to rotate counterclockwise through the first bevel gear 81 and the second bevel gear 82. Due to the action of the first one-way bearing 72, the transmission shaft 7 cannot drive the first transmission wheel 71 to rotate, so the first driven synchronous pulley 73 and the second main shaft 6 do not rotate.

[0042] like Figure 3 As shown, when the direction conversion switch 42 is toggled in the opposite direction to reverse the motor 2, the output shaft 31 of the reducer 3 rotates counterclockwise, and one end of the output shaft 31 drives the transmission shaft 7 to rotate clockwise through the first bevel gear 81 and the second bevel gear 82. The transmission shaft 7 drives the first transmission wheel 71 to rotate clockwise through the first one-way bearing 72, and the first transmission wheel 71 drives the first driven synchronous pulley 73 and the second main shaft 6 to rotate clockwise through the first synchronous belt 74; at this time, due to the action of the second one-way bearing 33, the other end of the output shaft 31 cannot drive the second transmission wheel 32 to rotate, so the second driven synchronous pulley 34 and the first main shaft 5 do not rotate.

[0043] Through this embodiment, the rotation of the first spindle 5 or the second spindle 6 can be conveniently switched, so as to process different types of parts on the first spindle 5 or the second spindle 6. When the first spindle 5 rotates, the second spindle 6 does not rotate, and when the second spindle 6 rotates, the first spindle 5 does not rotate. The two do not interfere with each other and can share a driving motor 2. The overall structure is compact and occupies a small space.

[0044] Combination Figure 1 , Figures 4 to 7 As shown, an integrated machine for repairing automobile brake drums and brake discs includes the above-mentioned dual-spindle switching drive mechanism, wherein the first spindle 5 is arranged in the horizontal direction, and the second spindle 6 is arranged in the longitudinal direction. The machine base 1 is also provided with a longitudinal tool feeding mechanism 9 which moves back and forth in the longitudinal direction, and the longitudinal tool feeding mechanism 9 is provided with a first transverse tool feeding mechanism 10 and a second transverse tool feeding mechanism 20. The longitudinal tool feeding mechanism 9 can simultaneously drive the first transverse tool feeding mechanism 10 and the second transverse tool feeding mechanism 20 to move back and forth in the longitudinal direction, and the first transverse tool feeding mechanism 10 and / or the second transverse tool feeding mechanism 20 cooperate with the first spindle 5 to process the brake disc 11, and the first transverse tool feeding mechanism 10 and / or the second transverse tool feeding mechanism 20 cooperate with the second spindle 6 to process the brake drum 12.

[0045] The longitudinal tool feeding mechanism 9 is provided with a longitudinal manual rotating wheel 91. Rotating the longitudinal manual rotating wheel 91 can drive the first transverse tool feeding mechanism 10 and the second transverse tool feeding mechanism 20 to move back and forth in the longitudinal direction.

[0046] The longitudinal manual rotating wheel 91 is provided with a displaceable manual latch 92, and the machine base 1 is also provided with an electric mechanism 93. When the movable manual latch 92 is combined with the electric mechanism 93, the electric mechanism 93 drives the longitudinal manual rotating wheel 91 to rotate.

[0047] The first transverse tool feeding mechanism 10 is provided with a first transverse hand wheel 101, a first transverse tool rest 102, and a first locking assembly 103. Rotating the first transverse hand wheel 101 can drive the first transverse tool rest 102 to move back and forth in the transverse direction. The first locking assembly 103 is used to lock the first transverse tool rest 102 to prevent the first transverse tool rest 102 from shifting in the transverse direction. The first transverse tool rest 102 is used to install a first turning tool 104.

[0048] The second transverse tool feeding mechanism 20 is provided with a second transverse hand wheel 201, a second transverse tool holder 202, and a second locking assembly 203. Rotating the second transverse hand wheel 201 can drive the second transverse tool holder 202 to move back and forth in the transverse direction. The second locking assembly 203 is used to lock the second transverse tool holder 202 to prevent the second transverse tool holder 202 from shifting in the transverse direction. The second transverse tool holder 202 is used to install a second turning tool 204.

[0049] A first locking nut 51 is screwed onto the end of the first main shaft 5, a first positioning member 52 is fixedly connected to the first main shaft 5 and a first clamping sleeve 53 is sleeved thereon, the first locking nut 51 presses the first clamping sleeve 53, and the first clamping sleeve 53 and the first positioning member 52 cooperate to clamp and position the brake disc 11;

[0050] A second locking nut 61 is screwed onto the end of the second main shaft 6 , a second positioning piece 62 is fixedly connected to the second main shaft 6 and is covered with a second jacket 63 , the second locking nut 61 presses the second jacket 63 , and the second jacket 63 and the second positioning piece 62 cooperate to clamp and position the brake drum 12 .

[0051] The first positioning member 52 has three first positioning grooves 521 on the side close to the first locking nut 51, so as to facilitate the positioning of the first jacket 53 and the workpiece. The second positioning member 62 has three second positioning grooves 621 on the side close to the second locking nut 61, so as to facilitate the positioning of the second jacket 63 and the workpiece.

[0052] The horizontal direction in this embodiment is Figure 4 The X direction shown in FIG. 1 is the longitudinal direction in this embodiment. Figure 4 The Y direction shown in .

[0053] like Figure 6 As shown, when the brake disc 11 is processed in this embodiment, the first clamping sleeve 53 is pressed by the first locking nut 51, and the first clamping sleeve 53 and the first positioning member 52 cooperate to clamp and position the brake disc 11, and then the direction conversion switch 42 is turned to make the motor 2 rotate forward. Combined with the working principle of the above-mentioned dual-spindle switching drive mechanism, the first spindle 5 rotates clockwise and the second spindle 6 does not rotate; at this time, after the first turning tool 104 on the first transverse tool holder 102 is adjusted to a good position by rotating the first transverse hand wheel 101, the first locking assembly 103 locks the first transverse tool holder 10 2 prevents the first transverse tool rest 102 from shifting in the transverse direction, and then with the feeding of the longitudinal tool feeding mechanism 9, the first turning tool 104 can process the front side of the brake disc 11; after the front side is processed, the first turning tool 104 withdraws, and the second turning tool 204 on the second transverse tool rest 202 is adjusted in position by rotating the second transverse hand wheel 201, and the second locking assembly 203 locks the second transverse tool rest 202 to prevent the second transverse tool rest 202 from shifting in the transverse direction, and then with the feeding of the longitudinal tool feeding mechanism 9, the second turning tool 204 can process the back side of the brake disc 11. The repair of both sides of the brake disc 11 is completed.

[0054] like Figure 7As shown, when the brake drum 12 is processed in this embodiment, the second clamping sleeve 63 is pressed by the second locking nut 61, and the second clamping sleeve 63 and the second positioning member 62 cooperate to clamp and position the brake drum 12, and then the direction conversion switch 42 is reversed to reverse the motor 2. Combined with the working principle of the above-mentioned dual-spindle switching drive mechanism, the second spindle 6 rotates clockwise and the first spindle 5 does not rotate; at this time, the second turning tool 204 on the second transverse tool holder 202 is adjusted to the position by rotating the second transverse handwheel 201, and the second locking assembly 203 locks the second transverse tool holder 202 to prevent the second transverse tool holder 202 from shifting laterally, and then with the help of the longitudinal tool feeding mechanism 9, the second turning tool 204 can process the inner circumference of the brake drum 12 to complete the repair of the brake drum 12.

[0055] The present invention can not only be used to process the brake disc 11 and the brake drum 12, but also can be used to process other suitable parts.

[0056] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes may be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined by the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A dual-spindle switching drive mechanism, comprising a base, a motor, and a reducer, wherein the motor is connected to the reducer, and the motor can realize forward and reverse rotation through a control unit, characterized in that: A first spindle and a second spindle are pivotally connected to the machine base, and a central axis of the first spindle is perpendicular to a central axis of the second spindle; The reducer is provided with an output shaft, the two ends of which extend from the two sides of the reducer housing respectively, and a transmission shaft is also pivotally connected to the machine base, one end of the output shaft is connected to the transmission shaft through a gear transmission mechanism so that the rotation direction of the output shaft is opposite to that of the transmission shaft; the transmission shaft is connected to the second main shaft through a first transmission unit, and the other end of the output shaft is connected to the first main shaft through a second transmission unit; The first transmission unit includes a first transmission wheel connected to the transmission shaft via a first one-way bearing, and the second transmission unit includes a second transmission wheel connected to the other end of the output shaft via a second one-way bearing.

2. The dual-spindle switching drive mechanism according to claim 1, characterized in that: The gear transmission mechanism includes a first bevel gear fixedly connected to one end of the output shaft and a second bevel gear fixedly connected to the transmission shaft. The central axis of the output shaft is perpendicular to the central axis of the transmission shaft, and the first bevel gear is meshed with the second bevel gear.

3. The dual-spindle switching drive mechanism according to claim 1, characterized in that: The first transmission unit is a synchronous belt pulley and a synchronous belt transmission mechanism, the first transmission wheel is a first active synchronous belt pulley, a first driven synchronous belt pulley is fixedly connected to the second main shaft, and the first transmission wheel and the first driven synchronous belt pulley are connected through a first synchronous belt; The second transmission unit is a synchronous pulley and a synchronous belt transmission mechanism, the second transmission wheel is a second active synchronous pulley, a second driven synchronous pulley is fixedly connected to the first main shaft, and the second transmission wheel and the second driven synchronous pulley are connected through a second synchronous belt.

4. The dual-spindle switching drive mechanism according to claim 1, characterized in that: The control unit comprises a controller and a direction conversion switch, wherein the direction conversion switch is electrically connected to the controller, and the direction conversion switch is rotated in different directions to control the forward and reverse rotation of the motor through the controller.

5. An integrated machine for repairing automobile brake drums and brake discs, characterized in that: It comprises the dual-spindle switching drive mechanism as described in any one of claims 1 to 4, wherein the first spindle is arranged in the transverse direction, and the second spindle is arranged in the longitudinal direction, and a longitudinal tool feed mechanism which moves back and forth in the longitudinal direction is also mounted on the machine base, and a first transverse tool feed mechanism and a second transverse tool feed mechanism are mounted on the longitudinal tool feed mechanism, and the longitudinal tool feed mechanism can simultaneously drive the first transverse tool feed mechanism and the second transverse tool feed mechanism to move in the longitudinal direction, and the first transverse tool feed mechanism and / or the second transverse tool feed mechanism cooperate with the first spindle to process the brake disc, and the first transverse tool feed mechanism and / or the second transverse tool feed mechanism cooperate with the second spindle to process the brake drum.

6. The integrated automobile brake drum and brake disc repairing machine according to claim 5, characterized in that: The longitudinal tool feeding mechanism is provided with a longitudinal manual rotating wheel, and rotating the longitudinal manual rotating wheel can drive the first transverse tool feeding mechanism and the second transverse tool feeding mechanism to move back and forth in the longitudinal direction.

7. The integrated machine for repairing automobile brake drum and brake disc according to claim 6, characterized in that: The longitudinal manual rotating wheel is provided with a displaceable manual latch, and the machine base is also provided with an electric mechanism. When the movable manual latch is combined with the electric mechanism, the electric mechanism drives the longitudinal manual rotating wheel to rotate.

8. The integrated automobile brake drum and brake disc repairing machine according to claim 5, characterized in that: The first transverse tool feeding mechanism is provided with a first transverse hand wheel, a first transverse tool holder, and a first locking assembly. Rotating the first transverse hand wheel can drive the first transverse tool holder to move back and forth in the transverse direction. The first locking assembly is used to lock the first transverse tool holder to prevent the first transverse tool holder from shifting in the transverse direction. The first transverse tool holder is used to install the first turning tool. The second transverse tool feeding mechanism is provided with a second transverse handwheel, a second transverse tool holder and a second locking assembly. Rotating the second transverse handwheel can drive the second transverse tool holder to move back and forth in the transverse direction. The second locking assembly is used to lock the second transverse tool holder to prevent the second transverse tool holder from shifting in the transverse direction. The second transverse tool holder is used to install the second turning tool.

9. The integrated automobile brake drum and brake disc repairing machine according to claim 5, characterized in that: A first locking nut is screwed onto the end of the first main shaft, a first positioning piece is fixedly connected to the first main shaft and is covered with a first clamping sleeve, the first locking nut presses the first clamping sleeve, and the first clamping sleeve and the first positioning piece cooperate to clamp and position the brake disc; A second locking nut is screwed onto the end of the second main shaft, a second positioning piece is fixedly connected to the second main shaft and is covered with a second jacket, the second locking nut presses the second jacket, and the second jacket cooperates with the second positioning piece to clamp and position the brake drum.

10. The integrated automobile brake drum and brake disc repairing machine according to claim 9, characterized in that: A side of the first positioning member close to the first locking nut is provided with a plurality of first positioning grooves; a side of the second positioning member close to the second locking nut is provided with a plurality of second positioning grooves.

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