Slotting device for brake pad

Abstract

The invention relates to the technical field of brake pad production, in particular to a slotting device for a brake pad, which comprises a chain scraper conveyor for conveying the brake pad, the chain scraper conveyor is provided with two groups of chains which are arranged in parallel at intervals, and a plurality of center correction carriers are arranged on the chain scraper conveyor at equal intervals; each center correction carrier comprises a cavity component fixedly connected to the chains on the two sides, each cavity component is provided with a bottom plate and a top plate, a baffle capable of stretching up and down is arranged at the top of each top plate, a push rod assembly is arranged on the periphery of each baffle, and each baffle and the corresponding push rod assembly form a square structure; the grooving device not only can be suitable for quick centering of brake pads with different sizes, but also can align the brake pads with different bottom supporting plate thicknesses, then cutting and grooving are conducted, and it is guaranteed that a groove opening is centered and the groove depth is consistent; the motor serves as a unique power source to drive the gear and the threaded lifting plate on the rotating shaft, automatic switching of different levels is achieved, and all the components are automatically started and stopped and act synergistically to complete centering and alignment.

Description

Technical Field

[0001] The present invention relates to the technical field of brake pad production, and particularly relates to a grooving device for brake pads. Background Art

[0002] As a key component of modern vehicle braking systems, the grooving design of brake pads is crucial for improving braking efficiency. Under high-temperature and high-speed braking conditions, a gas and dust layer is likely to form on the surface of the brake pads, resulting in poor contact with the brake disc and affecting the braking effect. By opening grooves with specific shapes on the surface of the brake pads, the gas, dust, and heat generated during braking can be effectively discharged. At the same time, the friction coefficient can be increased, and the braking efficiency can be improved. In addition, the grooving design can also reduce the impact of the water film on the road surface in rainy and snowy weather on the braking system. When the vehicle is driving on a slippery road surface, the grooves on the surface of the brake pads can quickly drain the water, avoiding braking failure caused by the formation of the water film. Grooving can also reduce the noise generated during braking. By adjusting the shape, depth, and distribution of the grooves, the acoustic characteristics when the brake pads contact the brake disc can be changed, reducing braking squeal and abnormal noise. At the same time, a reasonable grooving design can extend the service life of the brake pads and slow down the formation of thermal fatigue and thermal cracks of the brake pad material at high temperatures.

[0003] Chinese patent document (Publication No.: CN119077407A) discloses a grooving device for brake pad processing, including a base. A grinding and grooving machine is fixedly connected to the top surface of the base. A sliding substrate is in contact with the top surface of the base. A sliding seat is fixedly connected to the top surface of the sliding substrate. A sliding groove is opened at the top of the sliding seat. A sliding component is slidably connected inside the sliding groove. An articulated arm is hinged to the top surface of the sliding component. A sliding column is fixedly connected inside the articulated arm. A clamping arm is hinged to the top surface of the sliding substrate. A rounded chute is opened at the top of the clamping arm. In the present invention, by setting the articulated arm and the articulated block and rotating the unidirectional threaded column, the rotation angle of the clamping arm can be conveniently changed, so that the angle of the clamping arm is the same as the angles of the front and rear sides of the brake pad, so that different types of brake pads can be in more sufficient contact with the clamping arm, improving the clamping and positioning effects, and the device has a large application range.

[0004] However, the traditional brake pad grooving device has the following problems. First, for brake pads of different sizes and specifications, the traditional device needs to frequently replace the tooling fixtures or perform complex adjustments, greatly reducing the production efficiency. Second, the inconsistent thickness of the bottom support plate of the brake pad is an inevitable problem in production. This thickness difference makes it impossible to ensure the same grooving depth when using the traditional grooving device. During the process of adjusting the position of the brake pad, manual intervention is required, resulting in low work efficiency. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the present invention provides a grooving device for brake pads, which does not require frequent replacement of tooling fixtures and can quickly complete the centering and alignment of the brake pads. During the adjustment process, no manual intervention is required, and the efficiency is high.

[0006] In order to achieve the above object, the present invention adopts the following technical solution: A grooving device for brake pads, including a chain conveyor for conveying brake pads, the chain conveyor having two groups of chains arranged in parallel and at intervals, a plurality of center correction carriers being equidistantly arranged on the chain conveyor, each group of center correction carriers comprising a cavity component fixedly connected to the chains on both sides, the cavity component having a bottom plate and a top plate, a baffle which can be extended and retracted up and down is provided on the top of the top plate, a push rod assembly is provided on the periphery of the baffle, the baffle and the push rod assembly form a square structure; a power mechanism is provided below the top plate, the power mechanism is transmission-connected to three groups of push rod assemblies, the stop assembly provided on the push rod assembly automatically pushes the brake pad in sequence to adjust it to the center.

[0007] Preferably, the power assembly includes a motor installed under the base plate, the motor is installed with a rotating shaft, the rotating shaft extends through the top plate, and the first gear and the second gear are arranged on the rotating shaft at intervals; the push rod assembly includes a first push rod assembly, a second push rod assembly and a third push rod assembly, the second push rod assembly and the third push rod assembly are arranged opposite to each other and are located on both sides of the baffle, and the first push rod assembly is arranged opposite to the baffle; the first gear is meshed with a first tooth plate, the first tooth plate is fixedly connected to the first push rod assembly, and the second gear is meshed with a second tooth plate and a third tooth plate on both sides of the circumferential array, and the second tooth plate and the third tooth plate are respectively fixedly connected to the second push rod assembly and the third push rod assembly.

[0008] Preferably, the stop assembly is a first stop assembly and a second stop assembly, and the two stop assemblies have similar structures. The first stop assembly is installed between the first push rod assembly and the first gear; the second stop assembly is arranged between any one of the second push rod assembly and the third push rod assembly and the second gear; the first gear and the second gear have similar structures, and clutch units are arranged inside them, and the clutch units include a first clutch unit and a second clutch unit.

[0009] Preferably, the first clutch unit includes a transmission plate installed in the first gear, one end of the first gear protrudes outward to form a bearing seat, and the bearing seat is installed on the rotating shaft; a circular groove is formed at the end of the first gear away from the bearing seat, and a plurality of key slots are arranged at intervals on the outer circumference of the circular groove, and a clutch spring is installed at the bottom of the key slot; the circular groove is sequentially provided with a transmission plate, a friction plate and a spline keypad from the inside to the outside, the transmission plate is fixed on the rotating shaft, and the friction plate and the spline keypad are sleeved on the rotating shaft; a baffle is provided at the end of the outside of the first gear away from the bearing seat, the baffle abuts against the spline keypad and is fixedly installed on the rotating shaft.

[0010] Preferably, the first stop component includes a first rest unit, a first reset unit, a first reset unit, and a first restoration unit; the first rest unit includes a lever, a pressure fork, and a swing rod that are fixedly connected. The pressure fork is located below the first gear. A fork is fixedly provided at the end of the swing rod away from the pressure fork. A second pin shaft is passed through the fork. A cross bar is provided at the top of the fork, and a hinge seat is provided at the bottom of the fork. A pressure rod is fixedly provided at the free end of the hinge seat. A through slot is provided in the middle of the lever. The pressure rod slides through the through slot. A first pin shaft is passed through the bottom of the lever. A lever spring is sleeved on the lever. Both the second pin shaft and the first pin shaft are fixedly connected to the body of the cavity member.

[0011] Preferably, the first reset unit includes a rotating rod frame, the rotating rod frame is fixedly connected to a transfer rod, an opening is provided on the transfer frame, a cross-shaped rotating rod is provided in the opening, the collision rod of the horizontal section of the cross-shaped rotating rod is located in the opening of the rotating rod frame, the vertical section of the cross-shaped rotating rod is rotatably installed in the rotating rod frame, a reset rod is fixedly provided at the top of the vertical section of the cross-shaped rotating rod, and a fixed rod is fixedly provided on the top plate on one side of the reset rod; one end of the collision rod extends out of the rotating rod frame and intersects with the rotation trajectory of the fork, and the other end of the collision rod is connected to the rotating rod frame through a rotating rod tension spring; a lock is rotatably provided at one end of the rotating rod frame away from the rotating rod tension spring, and a lock torsion spring is provided on one side of the lock; a second wedge body is provided at the top end of the lock, and a first wedge body is provided at the top of the fork.

[0012] Preferably, a first lifting slot and a second lifting slot are vertically provided on the top plate. A first lifting plate is slidably provided in the first lifting slot, and a second lifting plate is slidably provided in the second lifting slot. The first lifting plate and the second lifting plate are fixedly connected. A threaded hole is provided in the middle of the first lifting plate, and the top of the rotating shaft is screwed into the threaded hole to adjust the up and down movement of the lifting plate.

[0013] Preferably, the first reset unit includes a hinge frame, a reset rod is rotatably installed in the hinge frame. One end of the reset rod is located below the first lifting plate, and the other end of the reset rod has an intersection with the rotation trajectory of the fork; a reset tension spring is provided at the bottom of the reset rod near the fork, and the other end of the reset tension spring is fixedly connected to the hinge frame.

[0014] Preferably, the first push rod assembly includes a sliding sleeve body and a push rod, the sliding sleeve body is fixedly arranged on the top of the transfer rod, the sliding sleeve body is penetrated by a push rod, and a push plate is fixedly arranged at one end of the push rod; the sliding sleeve body has a hollow cavity, a push rod spring and a stopper are arranged in the hollow cavity, the stopper is fixedly arranged on the push rod, and the push rod spring is sleeved on the push rod; an avoidance groove is opened on the top plate corresponding to the sliding sleeve body, a first restoring unit is arranged in the avoidance groove, the first restoring unit includes a restoring rod and an L-shaped frame fixedly arranged at the bottom of the top plate, and the sliding sleeve body close to the brake pad A ratchet rod is fixed at the end, a ratchet rod sliding groove is opened on the inner wall of the avoidance groove corresponding to the ratchet rod, a ratchet sliding groove is opened on the bottom perpendicular to the direction of the ratchet rod sliding groove to form a connection, a ratchet sliding rod is slidingly arranged in the ratchet sliding groove, the ratchet sliding rod is penetrated in the L-shaped frame, and the other end of the restoration rod is located below the first lifting plate; the restoration rod is fixedly connected perpendicularly to the ratchet sliding rod, a ratchet spring is sleeved on the ratchet sliding rod, and the ratchet spring is located between the restoration rod and the L-shaped frame; a ratchet is provided at the end of the ratchet rod, and a ratchet is provided on the ratchet sliding rod.

[0015] Preferably, a reciprocating lifting assembly is arranged between the two baffles, and the reciprocating lifting assembly includes a swing shaft and a U-shaped frame. The swing shaft is rotatably installed on the top plate between the two baffles, a cam cylinder is sleeved on the swing shaft, an arc groove is opened on the cam cylinder along the axis, a convex rod is fixed on the swing shaft, and the convex rod is slidably sleeved in the arc groove; a fixed rod is arranged on one side of the swing shaft, a U-shaped frame is fixed on the fixed rod, and one end of the swing shaft is located in the U-shaped frame; a swing piece is fixed on the swing shaft located in the U-shaped frame, and a paddle is fixed on the rotating shaft corresponding to the swing piece.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The device of the present invention realizes the precise conveying and positioning grooving of brake pads by means of a plurality of center correction carriers equidistantly arranged on a chain conveyor. The core advantage of the grooving device is that it can not only be used for rapid centering of brake pads of different sizes, but also can align brake pads of different bottom support plate thicknesses, and then cut and groove to ensure that the groove is centered and the groove depth is consistent; specifically, the structure of the center correction carrier is composed of a cavity member fixed on the chain, including a bottom plate and a top plate, a baffle which can be extended and retracted up and down is provided on the top of the top plate, and the baffle and three sets of push rod assemblies together form a square enclosing structure; a motor is installed under the bottom plate, and the motor, as the only power source, drives the gears and threaded lifting plates on the rotating shaft to realize automatic switching of different levels, automatic start and stop between various components, and coordinated action to complete centering and alignment.

[0017] 2. The center correction carrier of the device of the present invention is only provided with one motor, which drives the gear and the threaded lifting plate on the rotating shaft to realize automatic switching of different levels, automatic start and stop between various components, and coordinated action to complete centering and alignment; specifically, the motor is started to drive the rotating shaft to rotate, firstly driving the reciprocating lifting assembly to lift the baffle to form a preliminary limit on the brake pad, and at the same time driving the first gear and the second gear to rotate, connecting with the tooth plate through the clutch unit, driving the first push rod assembly, the second push rod assembly and the third push rod assembly to successively abut the brake pad, so as to realize the square encirclement and rapid centering of the brake pad; after the brake pad is pushed to the center position, the contact rod triggers the rest unit, automatically cuts off the power connection between the corresponding gear and the tooth plate, and triggers the ratchet rod limit function to fix the brake pad; then the rotating shaft continues to rotate, and drives the lifting plate to rise through the threaded connection, and lifts the brake pad to the bottom end of the limit plate, so that the tops of all brake pads are kept at the same horizontal plane, thereby overcoming the problem of uneven groove depth caused by inconsistent thickness of the support plate; After the grooving is completed, the motor reverses, the paddle drives the pendulum to move in the opposite direction, and the cam drum drives the baffle to descend, making way for the brake pad to unload the cargo. After making way for the brake pad, the motor continues to run in the opposite direction, and the shaft drives the screwed lifting plate to move downward. The lifting plate triggers the restoration unit and the reset unit. The restoration unit releases the limit of the ratchet rod limiter on the pushing assembly. The reset unit activates the clutch unit after the shift fork rotates, and further reconnects the gear and the tooth plate. The reset unit causes the bumper to enter the lock. All components and units are automatically reset, and the system returns to its initial state, ready for the next brake pad grooving process. The entire reset process is automated and cyclical through the coordinated action of each unit in the stop assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the overall installation structure of the device of the present invention; Figure 2 This is a three-dimensional schematic diagram of the internal structure of the center correction carrier of the device of the present invention. Figure 1 ; Figure 3 This is a three-dimensional schematic diagram of the internal structure of the center correction carrier of the device of the present invention. Figure 2 ; Figure 4 This is a three-dimensional schematic diagram of the internal structure of the center correction carrier of the device of the present invention. Figure 3 ; Figure 5 It is a three-dimensional schematic diagram of the installation structure of the rest unit of the device of the present invention; Figure 6 It is a three-dimensional schematic diagram of the installation structure of the reset unit of the device of the present invention; Figure 7 It is a three-dimensional schematic diagram of the disassembled structure of the reset unit of the device of the present invention; Figure 8It is a three-dimensional schematic diagram of the partial sectional structure of the push rod assembly of the device of the present invention; Figure 9 It is a three-dimensional schematic diagram of the sectional structure of the clutch unit of the device of the present invention; Figure 10 It is a three-dimensional schematic diagram of the partial sectional structure of the reduction unit of the device of the present invention; Figure 11 It is a three-dimensional schematic diagram of the installation structure of the reset unit of the device of the present invention; Figure 12 It is a three-dimensional schematic diagram of the installation structure of the reciprocating lifting assembly of the device of the present invention; In the figure: chain plate conveyor - 11; chain - 12; center alignment carrier - 13; cutting disc - 14; strip plate - 15; bottom plate - 16; top plate - 17; brake pad - 18; limit plate - 19; fixing plate - 20; first push rod assembly - 21; second push rod assembly - 22; third push rod assembly - 23; motor - 24; rotating shaft - 25; first gear - 26; second gear - 27; first toothed plate - 28; second toothed plate - 29; third toothed plate - 30; fork - 31; hinge seat - 32; pressure rod - 33; through slot - 34; lever - 35; lever spring - 36; first pin shaft - 37; adapter rod - 38; swing rod - 39; pressure fork - 40; baffle - 41; first lifting plate - 42; second lifting plate - 43; first wedge - 44; second wedge - 45; cross rotating rod - 46; support plate - 47; hinge frame - 48; reset rod - 49; reset tension spring - 50; second pin shaft - 51; resetting rod - 52; collision rod - 53; lock - 54; rotating rod tension spring - 55; lock torsion spring - 56; rotating rod frame - 57; sliding sleeve body - 58; push rod - 59; push rod spring - 60; stop block - 61; push plate - 62; bearing - 63; bearing seat - 64; drive plate - 65; friction plate - 66; flower keyboard - 67; clutch spring - 68; spline - 69; retaining piece - 70; threaded hole - 71; reduction rod - 72; pawl - 73; pawl sliding rod - 74; pawl spring - 75; L-shaped frame - 76; ratchet rod - 77; swing shaft - 78; cam rotating cylinder - 79; swing piece - 80; paddle - 81; U-shaped frame - 82. Detailed implementation manners

[0019] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0020] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0021] Figures 1 - 12 As shown in the figure, a grooving device for brake pads includes a chain conveyor 11 for conveying brake pads 18. The chain conveyor 11 has two groups of chains 12 arranged in parallel at intervals. A plurality of center alignment carriers 13 are equidistantly arranged on the chain conveyor 11. Each group of center alignment carriers includes a cavity member fixedly connected to the chains on both sides. The cavity member has a bottom plate 16 and a top plate 17. A baffle 41 that can be telescoped up and down is provided at the top of the top plate 17. Three groups of push rod assemblies are arranged on the outer periphery of the baffle 41. The baffle 41 and the three groups of push rod assemblies form a square structure for centering the brake pads 18. A power mechanism is arranged below the top plate 17. The power mechanism is drivingly connected to the three groups of push rod assemblies. A stop component is arranged on the push rod assemblies to push the brake pads to move to the center successively.

[0022] Among them, one end of the chain conveyor 11 is a feeding port, and the other end is a discharging port. A support frame is fixedly arranged across the top of the chain conveyor 11. A cutting motor is fixedly arranged inside the support frame. A cutting blade 14 is installed at the output end of the cutting motor. Brake pads 18 are placed on each center alignment carrier 13 at the feeding port. Under the action of the sprockets and chains, the center alignment carriers 13 and the placed brake pads 18 are driven to pass under the cutting blade 14 together. The cutting blade 14 grooves the brake pads 18 on the center alignment carriers, and the grooved brake pads are conveyed out from the discharging port.

[0023] A control system is set in this device. The control system is connected to the PLC and is used to control the start, stop, forward and reverse rotation of the motor 24. A displacement sensor is set inside the chain conveyor 11 to assist the control of the PLC. Among them, the control system, the PLC system and the motor are all provided with an external power supply, and they are all prior art, and the internal working principle is not described in detail here.

[0024] It should be noted that the first tooth plate 28, the second tooth plate 29 and the third tooth plate 30 in this embodiment are all provided with corresponding chutes to ensure the basic operation function.

[0025] In this embodiment, the grooved brake pads to be processed are symmetrically arranged in a long strip shape, and all four sides are arc-shaped structures. By setting a processing environment surrounding the four sides of the brake pads, first, the baffle 41 is lifted to preliminarily position the brake pads, and then the first push rod assembly 21 opposite the baffle 41 is activated to push the brake pads, so that the brake pads are limited in the horizontal direction. Then, the second push rod assemblies 22 and the third push rod assemblies 23 on both sides are activated to adjust the longitudinal distance of the brake pads simultaneously until they are in the centered state. Among them, the contact parts of the baffle 41 and the three push rod assemblies with the brake pads are all in sliding contact, which is conducive to quickly adjusting the position. A first lifting plate 42 is arranged at the bottom of the brake pads. After the brake pads are pushed to the centered position, the first lifting plate 42 lifts the brake pads 18, so that the top of the brake pads (i.e., the surface to be grooved) fits against the bottom end of the limiting plate 19, ensuring that the grooved parts of each brake pad are in the centered position. And for the case where the thickness of the support plates 47 fixedly arranged at the bottom of the brake pads is different, the grooving depth of the brake pads 18 is ensured to be consistent.

[0026] It should be noted that other components pass through in all four directions of the limiting plate 19. Therefore, a fixing plate 20 is arranged on the top of the limiting plate 19, and the fixing plate 20 extends to a place far from the limiting plate 19 and is fixedly connected to the top plate 17. A connecting block is arranged at the corner of the limiting plate 19 far from the brake pads and is fixed to the top plate to enhance the supporting force and improve the stability.

[0027] Strip-shaped plates 15 are fixedly arranged on both sides of the cavity member, and the strip-shaped plates 15 at both ends are respectively fixedly installed on the adjacent chains 12. The first toothed plate 28 is fixedly connected to the first push rod assembly 21 through a transfer rod 38. Using the transfer rod 38 is conducive to adapting to the position inside the cavity structure.

[0028] The two baffles 41 are arranged at intervals, and the gap between them is conducive to the cutting piece passing through for grooving. After cutting is completed, the two baffles 41 retract into the top plate to provide a passage for the brake pads, which is conducive to the unloading of the brake pads. A plurality of center correction carriers 13 are equidistantly arranged on the chain plate conveyor 11. Each center correction carrier 13 is used to drive a brake pad to move horizontally. When the brake pad 18 is transported below the cutting piece 14, grooving is achieved.

[0029] Further, the power assembly includes a motor 24 installed below the bottom plate 16. The motor 24 is equipped with a rotating shaft 25 that extends through and reaches the top plate 17. A first gear 26 and a second gear 27 are arranged at intervals on the rotating shaft 25. The push rod assembly includes a first push rod assembly 21, a second push rod assembly 22, and a third push rod assembly 23. The second push rod assembly 22 and the third push rod assembly 23 are arranged oppositely and are both located on both sides of the baffle 41. The first push rod assembly 21 is arranged oppositely to the baffle 41. The first gear 26 is meshed with a first toothed plate 28, and the first toothed plate 28 is fixedly connected to the first push rod assembly 21. On both sides of the second gear 27, a second toothed plate 29 and a third toothed plate 30 are meshed in a circumferential array. The second toothed plate 29 and the third toothed plate 30 are respectively fixedly connected to the second push rod assembly 22 and the third push rod assembly 23.

[0030] See Figure 3 , Figure 4 and Figure 11 , a rotating bearing is provided at the connection between the rotating shaft 25 and the bottom plate 16, and a first lifting plate 42 is provided at the connection between the rotating shaft 25 and the top plate 17. A sliding groove is opened on the top plate 17, and the first lifting plate 42 is slidably installed in the sliding groove. A threaded hole 71 is opened on the first lifting plate 42, and an external thread adapted to the threaded hole 71 is provided at the top of the rotating shaft 25. During the rotation of the rotating shaft 25, the rising or falling of the first lifting plate 42 is adjusted; The shaft diameter of the first gear 26 is larger than that of the second gear 27. During the rotation of the rotating shaft 25, the first gear 26 and the second gear 27 are driven to rotate together, thereby driving the movement of the three toothed plates. However, the moving distance of the first toothed plate 28 is greater than the moving distances of the second toothed plate 29 and the third toothed plate 30. Further, the moving distance of the first push rod assembly 21 is greater than the moving distances of the other two push rod assemblies. First, the first push rod assembly 21 quickly approaches the brake pad 18 horizontally and forms a horizontal position fixation with the baffle 42; then the second push rod assembly 22 and the third push rod assembly 23 approach the brake pad 18 simultaneously in opposite directions and push the brake pad 18 to a centered position; After the three push rod assemblies successively abut and push the brake pad and stabilize, the push rod assembly triggers the stop component to stop the corresponding gear transmission power, and the push rod assembly is locked through a component with a self-locking function to maintain the stable horizontal and vertical positions of the brake pad and ensure the centered state of the brake pad.

[0031] Furthermore, the stop component is a first stop component and a second stop component. The structures of the two stop components are similar. A first stop component is installed between the first push rod assembly 21 and the first gear 26; a second stop component is provided between any one of the second push rod assembly 22 and the third push rod assembly 23 and the second gear 27; the structures of the first gear 26 and the second gear 27 are similar, and a clutch unit is provided inside both of them. The clutch unit includes a first clutch unit and a second clutch unit.

[0032] See Figure 3 and Figure 4 , the first push rod assembly 21 needs to first fix the lateral direction of the brake pad 18. Therefore, after the first push rod assembly 21 completes the fixation, it terminates the power output of the first gear 26 through the first stopping assembly; the second push rod assembly 22 and the third push rod assembly 23 move towards each other to complete the fixation of the brake pad, and then terminate the power output of the second gear 27 through the second stopping assembly; when it is necessary to re-enable the push rod assembly, it is achieved through the reset function of the check assembly.

[0033] Since the structures and functions of the first stopping assembly and the second stopping assembly are similar, except that they are used in different positions, in this embodiment, the working principle of the first stopping assembly is mainly described in detail; for the working principle of the second stopping assembly, refer to the first stopping assembly.

[0034] Since a first clutch unit is provided inside the first gear 26 and a second clutch unit is provided inside the second gear 27, and the structures and functions of the first clutch unit and the second clutch unit are similar, except that they are used in different positions, in this embodiment, the working principle of the first clutch unit of the first gear 26 is mainly described in detail; for the working principle of the second clutch unit of the second gear 27, refer to the first clutch unit.

[0035] Further, the first clutch unit includes a driving plate 65, a friction plate 66, a spline plate 67 and a clutch spring 68 installed inside the first gear 26. One end of the first gear 26 protrudes outward to form a bearing seat 64, and the bearing seat 64 is installed on the rotating shaft 25 through a bearing 63; a circular groove is formed at one end of the first gear 26 away from the bearing seat 64, and a plurality of key grooves are arranged at intervals on the outer periphery of the circular groove, and the clutch spring 68 is installed at the bottom of the key groove; the driving plate 65, the friction plate 66 and the spline plate 67 are arranged in sequence from inside to outside in the circular groove. The driving plate 65 is fixedly arranged on the rotating shaft 25, the friction plate 66 and the spline plate 67 are slidably sleeved on the rotating shaft 25, and the spline 69 of the spline plate 67 is slidably installed in the spline groove; a retaining plate 70 is arranged at one end of the first gear 26 away from the bearing seat 64, and the retaining plate 70 abuts against the spline plate 67 and is fixedly installed on the rotating shaft 25.

[0036] See Figure 9 , in the case where no external force acts on the spline plate 67, the first gear 26 and the rotating shaft 25 maintain relative rotation. When there is an external force that causes the spline 67 to move towards the inside of the circular groove of the first gear 26 to form extrusion, it makes the driving plate 65 in close contact with the friction plate 66 and the spline plate 67 to generate a transmission relationship, and the rotating shaft 25 drives the first gear 26 to rotate together to generate power output.

[0037] Furthermore, the first stopping component includes a first resting unit, a first resetting unit, a first reset unit, and a first restoring unit; the first resting unit includes a lever 35, a pressure fork 40, and a swing rod 39 that are fixedly connected. The pressure fork 40 is located below the first gear 26. At the end of the swing rod 39 away from the pressure fork 40, a fork 31 is fixedly provided. A second pin shaft 51 is passed through the fork 31. The top of the fork 31 has a cross bar, and the bottom of the fork 31 has a hinge seat 32. The free end of the hinge seat 32 is fixedly provided with a pressure rod 33. A through slot 34 is opened in the middle of the lever 35. The pressure rod 33 slidably passes through the through slot 34. A first pin shaft 37 is passed through the bottom of the lever 35. A lever spring 36 is sleeved on the lever 35. Both the second pin shaft 51 and the first pin shaft 37 are fixedly connected to the body of the cavity member.

[0038] It should be noted that the second stopping component includes a second resting unit, a second resetting unit, a second reset unit, and a second restoring unit; the second resting unit, the second resetting unit, the second reset unit, and the second restoring unit correspond to the first resting unit, the first resetting unit, the first reset unit, and the first restoring unit one by one, and their structures and functions are similar. For detailed description, refer to the first stopping component.

[0039] See Figure 4 、 Figure 5 and Figure 6 As shown in, when the first toothed plate 26 moves, the pressure fork 40 abuts against the bottom of the first gear 26 and connects the first gear 26 to the transmission of the rotating shaft 25. When the first push rod assembly 21 pushes the brake pad 18 to move and abut against the first lifting plate 42, it triggers the first push rod assembly 21 to push the top of the fork 31, driving the fork 31 and the pressure fork 40 to rotate around the second pin shaft 51, so that the pressure fork 40 moves away from the first gear 26, disconnecting the transmission connection between the first gear 26 and the rotating shaft 25, further stopping the movement of the first toothed plate 28, and terminating the pushing of the first push rod assembly 21.

[0040] Further, the first reset unit includes a rotating rod frame 57. The rotating rod frame 57 is located on one side of the rotation trajectory of the fork 31 and is fixedly connected to the adapter rod 38. An opening is provided on the rotating rod frame 57 in the direction towards the fork 31. A cross rotating rod 46 is arranged in the opening. The horizontal section of the cross rotating rod 46 has a collision rod 53. The collision rod 53 is located in the opening of the rotating rod frame 57. The vertical section of the cross rotating rod 46 is rotatably installed in the rotating rod frame 57. A reset rod 52 is fixedly arranged at the top of the vertical section of the cross rotating rod 46. A fixed rod is fixedly arranged on the top plate on one side of the reset rod 52; the reset rod 52 is arranged along the moving direction of the first toothed plate 26. One end of the collision rod 53 extends out of the rotating rod frame 57 and intersects with the rotation trajectory of the fork 31. The other end of the collision rod 53 is connected to the rotating rod frame 57 through a rotating rod tension spring 55; a lock catch 54 is arranged at one end of the rotating rod frame 57 away from the rotating rod tension spring 55. The lock catch 54 is rotatably installed on the rotating rod frame 57 through a lock catch pin. A lock catch torsion spring 56 is arranged on one side of the lock catch 54; a second wedge body 45 is arranged at the top end of the lock catch 54. A first wedge body 44 is arranged at the top of the fork 31. The first wedge body 44 is adapted to push the second wedge body 45 to flip.

[0041] See Figure 6 and Figure 7 , when the first push rod assembly 21 moves towards the brake pad 18 and does not collide with the fork 31, the collision rod 53 is located in the opening of the adapter frame 57 and the collision rod 53 is locked by the lock catch 54; when the collision rod 53 collides with the fork 31, actually, it is the extended section of the collision rod 53 that collides with the fork 31; in the previous stage before the collision rod 53 collides with the fork 31, the first wedge body 44 will extend into the second wedge body 45 to cause the second wedge body 45 and the lock catch 54 to flip together, releasing the limit of the lock catch 54 on the collision rod 53; when the collision rod 53 collides with the fork 31 to trigger the first rest unit, the fork 31 rotates away from the adapter frame 57 around the second pin shaft 51. After that, the collision rod 53 that is released from the limit rotates under the action of the rotating rod tension spring 55. At this time, the collision rod 53 has no intersection point with the rotation trajectory of the fork 31, providing an avoidance space for the reset of the shift lever 31; after the reset rod 52 rotates with the collision rod 53, an intersection point appears between the stroke trajectory of the reset rod 52 moving in the direction away from the brake pad and the fixed rod, which is conducive to the reset rod 52 entering the inside of the opening of the adapter frame 57 and being limited by the lock catch 54 during the reverse movement process, preparing for triggering the first rest unit next time.

[0042] Among them, the fixed rod is fixedly arranged at the bottom of the top plate 17. The function of the fixed rod is to make the cross rotating rod 46 rotate and place the collision rod in the lock catch 54; there is a certain distance between the collision point of the collision rod 53 and the fork 31 and the fixed rod. By using the reset of the first rest unit, the first gear 26 and the first toothed plate 28 are re-driven and connected.

[0043] It should be noted that the collision rod 53 of this design collides with the fork 31. After the collision rod 53 triggers the first rest unit, it does not stop at the collision point, providing an avoidance space for the reset of the first rest unit.

[0044] Furthermore, a first lifting groove and a second lifting groove are vertically opened on the top plate 17. A first lifting plate 42 is slidably arranged in the first lifting groove, and a second lifting plate 43 is slidably arranged in the second lifting groove. The first lifting plate 42 and the second lifting plate 43 are fixedly connected. A threaded hole 71 is opened in the middle of the first lifting plate 42, and the top of the rotating shaft 25 is screwed into the threaded hole 71 to adjust the up and down movement of the lifting plate.

[0045] Among them, the brake pads 18 will be pushed by 3 push rod assemblies to complete centering adjustment. At this time, the brake pads 18 are above the first lifting plate 42.

[0046] See Figure 4 、 Figure 11 and Figure 12 , the motor 24 drives the rotating shaft 25 to rotate. While the rotating shaft 25 drives two gears and the toothed plate to move, the up and down movement is realized by screwing the lifting plate at the top of the rotating shaft 25.

[0047] When the rotating shaft 25 rotates to lift the first lifting plate 42 upward, the first lifting plate 42 lifts the brake pads 18 at the top, so that the top of the brake pads fits against the bottom end of the limit plate 19, ensuring that the tops of all brake pads are on the same horizontal plane; during the process of grooving the cutting blade 12, the groove depths of all brake pads are the same, overcoming the grooving deviation caused by the inconsistent thickness of the support plates 47 at the bottom of the brake pads.

[0048] Further, the first reset unit includes a hinge frame 48 fixed to the bottom of the top plate 17. A reset rod 49 is rotatably installed in the hinge frame 48. One end of the reset rod 49 is located below the first lifting plate 42, and the other end of the reset rod 49 has an intersection with the rotation trajectory of the fork 31; a reset tension spring 50 is arranged at the bottom of the reset rod 49 near one end of the fork 31, and the other end of the reset tension spring 50 is fixedly connected to the hinge frame 48.

[0049] See Figure 8 , when the first lifting plate 42 is in or above the top plate 17, at this time the fork 31 rotates to the side close to the brake pads, and the gear and the toothed plate are in a state of power separation. Under the action of the reset tension spring 50, the reset rod 49 does not contact the fork 31; when the first lifting plate 42 descends and the bottom contacts and presses the end of the reset rod 49, the end of the reset rod 49 adjacent to the fork 31 will lift the cross bar at the top of the fork until the fork 31 rotates away from the brake pads, driving the pressure groove 40 to contact the spline key at the bottom of the first gear 26, so that the gear and the toothed plate form power transmission.

[0050] It should be noted that, due to the difference in position, the second lifting plate 43 extends to the second reset unit to ensure that the second reset unit can achieve the reset function; The time points at which the first push rod assembly and the other two push rod assemblies realize pushing are different, that is, there is a time difference; a height-adjusting component, such as a pad or a groove, can be set between the reset rod and the lifting plate to change the reset time point and ensure the reset time difference.

[0051] Furthermore, the first push rod assembly 21 includes a sliding sleeve body 58 and a push rod 59. The sliding sleeve body 58 is fixed on the top of the transfer rod 38. The sliding sleeve body 58 is penetrated by a push rod 59. A push plate 62 is fixed on the end of the push rod 59 close to the brake pad 18. The sliding sleeve body 58 is a hollow cavity structure. A push rod spring 60 and a stopper 61 are arranged in the hollow cavity. The stopper 61 is fixed on the push rod 59. The push rod spring 60 is sleeved on the push rod 59. The stopper 61 is located between the push rod spring 60 and the push plate 62. An avoidance groove is opened on the top plate 17 corresponding to the sliding sleeve body.

[0052] Since the first push rod assembly 21 is similar in structure and function to the second push rod assembly 22 and the third push rod assembly 23, but is used in different positions, the present embodiment mainly provides a detailed description of the working principle of the first push rod assembly 21; the working principles of the second push rod assembly 22 and the third push rod assembly 23 refer to the first push rod assembly 21.

[0053] See also Figure 3 and Figure 8 When the first push rod assembly 21 moves toward the brake pad 18, the push rod spring 60 does not deform during the process of the push plate 62 pushing the brake pad; when the brake pad moves to abut against the baffle 41, the brake pad has no displacement space. At this time, the sliding sleeve body 58 compresses the push rod spring 60 and moves toward the brake pad until the contact rod 53 triggers the rest unit, terminating the power connection between the gear and the toothed plate.

[0054] Furthermore, a first restoration unit is provided in the avoidance groove, and the first restoration unit includes a restoration rod 72 and an L-shaped frame 76 fixedly arranged at the bottom of the top plate 17, a ratchet rod 77 is fixedly arranged at the end of the sliding sleeve body 58 close to the brake pad, a ratchet rod slide groove is provided on the inner wall of the avoidance groove corresponding to the ratchet rod 77, a ratchet slide groove is provided on the bottom 17 perpendicular to the direction of the ratchet rod slide groove to form a connection, a ratchet slide bar 74 is provided for sliding in the ratchet slide groove, the ratchet slide bar 74 is penetrated in the L-shaped frame 76, and the other end of the restoration rod 72 is located below the first lifting plate 42; the restoration rod 72 is fixedly connected perpendicularly to the ratchet slide bar 74, a ratchet spring 75 is sleeved on the ratchet slide bar 74, and the ratchet spring 75 is located between the restoration rod 72 and the L-shaped frame 76; a ratchet is provided at the end of the ratchet rod 77, and a ratchet 73 is provided on the ratchet slide bar 74.

[0055] See also Figure 10, when the first push rod assembly moves towards the brake pad and the first lifting plate 42 is above the restoring rod 72 without contact, the ratchet rod 77 will be limited by the ratchet pawl to ensure that the push plate 62 of the first push rod assembly and the brake pad maintain a relatively stable position; when the grooving of the brake pad is completed, during the process of the first lifting plate 42 descending, it squeezes the restoring rod 72, driving the restoring rod 72 and the ratchet pawl slide rod 74 to move downward and forward, separating the ratchet pawl from the ratchet rod teeth, and releasing the limit on the push rod assembly.

[0056] Further, a reciprocating lifting assembly is arranged between the two baffles 41. The reciprocating lifting assembly includes a swing shaft 78 and a U-shaped frame 82. The swing shaft 78 is rotatably installed on the top plate between the two baffles 41. A cam rotating cylinder 79 is sleeved on the swing shaft 78, and the cam rotating cylinder 79 is fixedly connected with the two baffles 41; an upward arc-shaped groove is formed on the cam rotating cylinder 79, and a convex rod is fixedly arranged on the swing shaft 78, and the convex rod is slidably sleeved in the arc-shaped groove; a fixed rod is arranged on one side of the swing shaft 78, and a U-shaped frame 82 is fixedly arranged on the fixed rod. The swing shaft 78 is located inside the U-shaped frame 82; a swing piece 80 is fixedly arranged on the swing shaft 78 inside the U-shaped frame 82, and a dial 81 is fixedly arranged on the rotating shaft 25 corresponding to the swing piece 80.

[0057] See Figure 12 , the swing shaft 78 is rotatably installed on the top plate 17 through a bearing, and the other end of the swing shaft 78 is connected with the top plate through a rotating bearing and a connecting rod, enabling the swing shaft 78 to rotate freely; The cam rotating cylinder 79 sleeved on the swing shaft 78 is fixedly connected with the two baffles 41, and the convex rod on the rotating shaft 25 is slidably installed in the arc-shaped groove of the cam rotating cylinder 79; when the dial 81 on the rotating shaft 25 drives the swing piece 80 and the swing shaft 78 to rotate, the cam rotating cylinder 79 is driven to move up and down.

[0058] It should be noted that elastic members, such as rubber or sponge, are arranged at both ends of the U-shaped frame 82. When the rotating shaft 25 and the dial 81 rotate in one direction, they drive the swing piece 80 to rotate in one direction and then always stay at the position of the elastic member, and the rotating shaft 25 still maintains the original rotation direction; but when the rotating shaft 25 and the dial 81 rotate in the reverse direction, they immediately drive the swing piece 80 to rotate in the reverse direction and make the swing piece 80 always stay at the position of the elastic member on the other side until the next reverse rotation to switch positions; During the grooving process, when the motor 24 is initially started, it drives the rotating shaft 25 and the dial 81 to rotate together, driving the cam rotating cylinder 79 and the baffles 41 on both sides to rise together, and the baffle 41 extends out of the top plate 17 to block the brake pad; when the grooving of the brake pad is completed, the rotating shaft 25 rotates in reverse, driving the cam rotating cylinder 79 and the baffles 41 on both sides to descend together, and the baffle 41 retracts into the top plate to make a passage for the grooved brake pad and facilitate the unloading of the brake pad.

[0059] It is worth noting that the horizontal circumferential angle of the three-dimensional arc groove on the cam cylinder 79 is less than 150 degrees, and the vertical displacement of the arc groove can meet the lifting distance of the baffle 41 to ensure the function of blocking the brake pad.

[0060] Working principle: The working principle of the brake pad slotting device is to achieve accurate conveying and positioning slotting of the brake pad 18 through multiple center correction carriers 13 equidistantly arranged on the chain conveyor 11. The core advantage of this slotting device is that it can not only be used for rapid centering of brake pads of different sizes, but also can align, cut and slot brake pads with different bottom support plate thicknesses to ensure that the slot is centered and the slot depth is consistent. The structure of the center correction carrier is composed of a cavity component fixed on the chain 12, including a bottom plate 16 and a top plate 17. The top of the top plate 17 is provided with a baffle 41 that can be retracted up and down. The baffle 41 and the three groups of push rod assemblies together form a square enclosing structure. A motor 24 is installed under the bottom plate 16. As the only power source, the motor 24 drives the gears and threaded lifting plates on the rotating shaft 25 to achieve automatic switching of different levels, automatic start and stop between various components, and coordinated action to complete centering and alignment.

[0061] The specific working process is to start the motor 24 and drive the rotating shaft 25 to rotate. First, the paddle 81 and the swing plate 80 drive the swing shaft 78 to rotate a certain angle, and the cam cylinder 79 rises accordingly, driving the baffle 41 to lift and form a preliminary limit to one side of the brake pad 18; at the same time, the rotating shaft 25 drives the first gear 26 and the second gear 27 to rotate. The shaft diameter of the first gear 26 is larger than that of the second gear 27, so that the movement distance of the first push rod assembly 21 is larger than that of the second push rod assembly 22 and the third push rod assembly 23. The first push rod assembly 21 first contacts the brake pad and forms a lateral positioning with the baffle 41. At this time, the rest unit is triggered to stop the displacement of the first push rod assembly 21, and the ratchet rod self-locking structure self-locks the position of the first push rod 21; The first clutch unit and the second clutch unit are connected to the toothed plate to realize the start-stop switching of the power. The first clutch unit includes an articulated seat 32 with a shifting body function, a transmission plate 65, a friction plate 66, a spline key 67 and other components. When the transmission plate 65, the friction plate 66 and the spline key 67 are in contact with each other, power transmission is realized, driving the first toothed plate 28, the second toothed plate 29 and the third toothed plate 30 to move, driving the first push rod assembly 21, the second push rod assembly 22 and the third push rod assembly 23 to successively approach the brake pad, forming a square enclosed structure, and realizing the rapid centering of the brake pad 18; The first push rod assembly 21 includes a sleeve body 58, a push rod 59, a push rod spring 60 and a stopper 61. In the process of pushing the brake pad, the push rod spring 60 does not deform. When the brake pad moves to abut against the baffle, the sleeve body 58 compresses the push rod spring 60 and moves relative to the push rod 59 to complete the lateral centering of the brake pad. In this process, the contact rod 53 touches the fork 31 in the first rest unit, the fork 31 drives the swing rod 39 to rotate, and the swing rod 39 drives the pressure fork 40 to separate from the clutch unit, automatically cutting off the power connection between the first gear and the first tooth plate; the contact rod 53 triggers the ratchet rod self-locking structure to fix the position of the brake pad; Afterwards, the second push rod assembly and the third push rod assembly continue to move relatively to each other at the same time under the drive of the second gear 27 to perform longitudinal centering and limiting of the brake pad. The working principle of the two push rod assemblies is similar to that of the first push rod assembly 21. Subsequently, the shaft 25 continues to rotate, and is screwed to the top of the shaft 25 through the threaded hole 71 opened in the middle of the first lifting plate 42, driving the lifting plate to rise, and lifting the brake pad 18 to the bottom of the limit plate 19, so that the tops of all brake pads are kept at the same horizontal plane, thereby overcoming the problem of uneven groove depth caused by the inconsistent thickness of the support plate 47; After the slotting is completed, the motor 24 reverses, the paddle 81 drives the swing piece 80 to move in the opposite direction, so that the swing shaft 78 rotates in the opposite direction, and the cam drum 79 drives the baffle 41 to descend, making way for the brake pad 18 to make way for the unloading channel; after making way for the brake pad, the motor 24 continues to operate in the opposite direction, the shaft 25 drives the screwed lifting plate to move downward, and the lifting plate pushes the restoring rod 72 downward, and the restoring rod 72 triggers the restoring unit, releasing the limit of the ratchet rod on the push rod assembly; at the same time, the lifting plate pushes the reset rod downward, and the reset rod triggers the reset unit, so that the shift fork rotates and rotates the first clutch unit and the second clutch unit. The clutch unit is activated for transmission, thereby re-establishing the transmission connection between the first gear 26, the second gear 27 and the first tooth plate 28, the second tooth plate 29 and the third tooth plate 30; the reset rod in the reset unit is pushed during the rotation of the shift fork, so that the cross-rotating rod drives the bumper rod back to the lock; all components and units complete automatic reset, and the system returns to the initial state, ready for the next brake pad grooving process. The entire reset process is achieved through the coordinated action of the rest unit, reset unit, reset unit and restoration unit in the stop assembly to achieve automatic cyclic operation.

[0062] The present invention illustrates the technical concept of the present invention through the above embodiments, but the present invention is not limited to the above embodiments, that is, it does not mean that the present invention must rely on the above embodiments to be implemented. Those skilled in the art should understand that the relevant improvements to the present invention fall within the protection scope and disclosure scope of the present invention.

Claims

1. A grooving device for a brake pad, comprising a chain conveyor (11) for conveying a brake pad (18), the chain conveyor (11) having two sets of chains (12) arranged in parallel and spaced apart, characterized in that: A plurality of center correction carriers (13) are equidistantly arranged on the chain conveyor (11), each group of center correction carriers comprises a cavity component fixedly connected to the chains on both sides, the cavity component comprises a bottom plate (16) and a top plate (17), a baffle plate (41) which can be extended and retracted upward and downward is arranged on the top of the top plate (17), a push rod assembly is arranged on the periphery of the baffle plate (41), and the baffle plate (41) and the push rod assembly form a square structure; a power mechanism is arranged below the top plate (17), the power mechanism is transmission-connected to the three groups of push rod assemblies, and a stop assembly arranged on the push rod assembly automatically pushes the brake pads in sequence to adjust the center.

2. The grooving device for brake pads according to claim 1, characterized in that: The power assembly comprises a motor (24) installed below the bottom plate (16), the motor (24) being installed with a rotating shaft (25), the rotating shaft (25) extending through and extending to the top plate (17), and a first gear (26) and a second gear (27) being arranged on the rotating shaft (25) at intervals; the push rod assembly comprises a first push rod assembly (21), a second push rod assembly (22) and a third push rod assembly (23), the second push rod assembly (22) and the third push rod assembly (23) being arranged opposite to each other and both being located on two sides of the baffle (41), and the first push rod assembly (21) and the baffle (41) being arranged opposite to each other; the first gear (26) being meshed with a first tooth plate (28), the first tooth plate (28) being fixedly connected to the first push rod assembly (21), and a second tooth plate (29) and a third tooth plate (30) being meshed with a circumferential array on both sides of the second gear (27), the second tooth plate (29) and the third tooth plate (30) being fixedly connected to the second push rod assembly (22) and the third push rod assembly (23) respectively.

3. The grooving device for brake pads according to claim 2, characterized in that: The stop assembly comprises a first stop assembly and a second stop assembly, and the two stop assemblies have similar structures. The first stop assembly is installed between the first push rod assembly (21) and the first gear (26); the second stop assembly is arranged between any one of the second push rod assembly (22) and the third push rod assembly (23) and the second gear (27); the first gear (26) and the second gear (27) have similar structures, and clutch units are arranged inside both of them, and the clutch units include a first clutch unit and a second clutch unit.

4. The grooving device for brake pads according to claim 3, characterized in that: The first clutch unit comprises a transmission plate (65) installed in the first gear (26); one end of the first gear (26) protrudes outward to form a bearing seat (64), and the bearing seat (64) is installed on the rotating shaft (25); a circular groove is formed at one end of the first gear (26) away from the bearing seat (64), and a plurality of key slots are arranged at intervals on the outer circumference of the circular groove, and a clutch spring (68) is installed at the bottom of the key slot; the circular groove is provided with a transmission plate (65), a friction plate (66) and a spline key (67) in sequence from the inside to the outside, the transmission plate (65) is fixedly mounted on the rotating shaft (25), and the friction plate (66) and the spline key (67) are sleeved on the rotating shaft (25); a baffle plate (70) is provided at one end of the first gear (26) away from the bearing seat (64), and the baffle plate (70) abuts against the spline key (67) and is fixedly mounted on the rotating shaft (25).

5. The grooving device for brake pads according to claim 4, characterized in that: The first stop assembly comprises a first rest unit, a first reset unit, a first resetting unit and a first restoration unit; the first rest unit comprises a shifting rod (35), a pressure fork (40) and a swing rod (39) which are fixedly connected; the pressure fork (40) is located below the first gear (26); a shifting fork (31) is fixedly arranged at the end of the swing rod (39) away from the pressure fork (40); a second pin shaft (51) is passed through the shifting fork (31); a cross bar is provided at the top of the shifting fork (31); a hinge seat (32) is provided at the bottom of the shifting fork (31); a pressure rod (33) is fixedly arranged at the free end of the hinge seat (32); a through groove (34) is provided in the middle of the shifting rod (35); the pressure rod (33) is slidably passed through the through groove (34); a first pin shaft (37) is passed through the bottom of the shifting rod (35); a shifting rod spring (36) is sleeved on the shifting rod (35); the second pin shaft (51) and the first pin shaft (37) are both fixedly connected to the body of the cavity component.

6. The grooving device for brake pads according to claim 5, characterized in that: The first reset unit comprises a rotating rod frame (57), the rotating rod frame (57) is fixedly connected to the transfer rod (38), an opening is arranged on the transfer rod (57), a cross rotating rod (46) is arranged in the opening, a contact rod (53) of the horizontal section of the cross rotating rod (46) is located in the opening of the rotating rod frame (57), a vertical section of the cross rotating rod (46) is rotatably mounted in the rotating rod frame (57), a reset rod (52) is fixedly arranged on the top of the vertical section of the cross rotating rod (46), and a top plate on one side of the reset rod (52) is provided. A fixed setting rod; one end of the contact rod (53) extends out of the rotating rod frame (57) and intersects with the rotation trajectory of the shift fork (31), and the other end of the contact rod (53) is connected to the rotating rod frame (57) through a rotating rod tension spring (55); a lock buckle (54) is rotatably provided on the rotating rod frame (57) at one end away from the rotating rod tension spring (55), and a lock buckle torsion spring (56) is provided on one side of the lock buckle (54); a second wedge (45) is provided at the top end of the lock buckle (54), and a first wedge (44) is provided at the top end of the shift fork (31).

7. The grooving device for brake pads according to claim 5, characterized in that: The top plate (17) is vertically provided with a first lifting groove and a second lifting groove, a first lifting plate (42) is slidably arranged in the first lifting groove, and a second lifting plate (43) is slidably arranged in the second lifting groove, the first lifting plate (42) and the second lifting plate (43) are fixedly connected, a threaded hole (71) is provided in the middle of the first lifting plate (42), and the top of the rotating shaft (25) is screwed to the threaded hole (71) to adjust the up and down movement of the lifting plate.

8. The grooving device for brake pads according to claim 5, characterized in that: The first reset unit comprises an articulated frame (48), a reset rod (49) being rotatably mounted in the articulated frame (48), one end of the reset rod (49) being located below the first lifting plate (42), and the other end of the reset rod (49) having an intersection with a rotation trajectory of the shift fork (31); a reset tension spring (50) is arranged at one end of the bottom of the reset rod (49) close to the shift fork (31), and the other end of the reset tension spring (50) is fixedly connected to the articulated frame (48).

9. The grooving device for brake pads according to claim 5, characterized in that: The first push rod assembly (21) comprises a sleeve body (58) and a push rod (59), the sleeve body (58) being fixedly mounted on the top of the transfer rod (38), the sleeve body (58) being provided with a push rod (59) running through the sleeve body (58), and a push plate (62) being fixedly mounted on one end of the push rod (59); the sleeve body (58) having a hollow cavity, a push rod spring (60) and a stopper (61) being arranged in the hollow cavity, the stopper (61) being fixedly mounted on the push rod (59), and the push rod spring (60) being sleeved on the push rod (59); an avoidance groove being provided on the top plate (17) corresponding to the sleeve body, a first restoration unit being arranged in the avoidance groove, the first restoration unit comprising a restoration rod (72) and an L-shaped frame (76) fixedly mounted on the bottom of the top plate (17), the sleeve body being close to the brake pad A ratchet rod (77) is fixedly arranged at the end of (58), a ratchet rod slide groove is opened on the inner wall of the avoidance groove corresponding to the ratchet rod (77), a ratchet chute is opened on the bottom (17) perpendicular to the direction of the ratchet rod slide groove to form a connection, a ratchet slide rod (74) is slidably arranged in the ratchet slide groove, the ratchet slide rod (74) is inserted into the L-shaped frame (76), and the other end of the restoration rod (72) is located below the first lifting plate (42); the restoration rod (72) is fixedly connected to the ratchet slide rod (74) perpendicularly, a ratchet spring (75) is sleeved on the ratchet slide rod (74), and the ratchet spring (75) is located between the restoration rod (72) and the L-shaped frame (76); a ratchet tooth is arranged at the end of the ratchet rod (77), and a ratchet (73) is arranged on the ratchet slide rod (74).

10. The grooving device for brake pads according to claim 7, characterized in that: A reciprocating lifting assembly is arranged between the two baffles (41), and the reciprocating lifting assembly comprises a swing shaft (78) and a U-shaped frame (82). The swing shaft (78) is rotatably mounted on a top plate between the two baffles (41), a cam cylinder (79) is sleeved on the swing shaft (78), an arc groove is provided on the cam cylinder (79) along the axis, a protruding rod is fixedly arranged on the swing shaft (78), and the protruding rod is slidably sleeved in the arc groove; a fixing rod is arranged on one side of the swing shaft (78), a U-shaped frame (82) is fixedly arranged on the fixing rod, and one end of the swing shaft (78) is located in the U-shaped frame (82); a swing piece (80) is fixedly arranged on the swing shaft (78) located in the U-shaped frame (82), and a paddle (81) is fixedly arranged on the rotating shaft (25) corresponding to the swing piece (80).

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