A grinding device for automobile brake pads

Abstract

The present invention relates to the technical field of brake pad grinding, and specifically to a grinding device for automobile brake pads, comprising a base and a frame, a grinding assembly is arranged on the frame, a bidirectional movable assembly is arranged between two side plates on the base, a centering assembly is transmission-connected to the bidirectional movable assembly, clamping assemblies are respectively arranged on both sides of the centering assembly, and the clamping assembly and the bidirectional movable assembly are connected through a movable block to receive its drive; an open blind groove is arranged on the chassis of the clamping assembly, and a swing plate and the open blind groove are rotatably connected through a rotary T-shaped structure; when the device performs centering and clamping on brake pads of different shapes or specifications, it only needs to control the rotation of the bidirectional threaded screw, and the centering and clamping are completed by the centering assembly and the clamping assembly, which solves the problems of inaccurate positioning and the need for manual intervention; the clamping assembly adopts a multi-level swing plate structure, which can adaptively adjust the inclination angle of the swing plate at each level, so that the brake pad can stably abut against the surface of the swing plate, avoiding frequent replacement of the fixture.

Description

Technical Field

[0001] The invention relates to the technical field of brake pad grinding, and in particular to a grinding device for automobile brake pads. Background Art

[0002] Grinding automotive brake pads is a precision machining process used to surface treat and dimensionally correct brake pads in braking systems to ensure optimal friction fit with the brake disc or drum. The process utilizes a dedicated grinding device and grinding tools to uniformly remove material and smooth the friction surface of the brake pad. Simultaneously, the pad's geometry is precisely controlled to ensure uniform thickness and flatness meet technical requirements.

[0003] A Chinese patent document (publication number: CN117754410B) discloses a brake pad grinding device, which relates to the field of grinding technology and includes a support seat, on which a self-locking worm is rotatably mounted; guide gears are fixedly mounted on the front and rear ends of the self-locking worm; a self-locking worm wheel is rotatably mounted on the left side of the interior of the support seat; and a positioning seat is slidably mounted on the left side of the top of the support seat. The present invention can simultaneously achieve the sealing of the brake pad and two clamping and positioning tasks during the necessary step of completing the contact between the brake pad and the grinding disc, thereby ensuring the safety of the brake pad during the grinding process and not reducing the operational convenience of the grinding device due to the large number of protective structures. It solves the problem that there is no linkage between the cover structure and the clamp structure in the existing grinding device, so the operation of the two tasks needs to be carried out step by step, resulting in relatively trivial preparatory work before grinding, which directly reduces the grinding efficiency of the brake pad.

[0004] In the prior art, centering and clamping brake pads of different shapes or specifications usually requires manual intervention for positioning, and frequent replacement of fixtures is required. In addition, the fixtures are difficult to adapt to different angles, resulting in loose fixation. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the present invention provides a grinding device for automobile brake pads. When centering brake pads of different shapes or specifications, it is only necessary to control the rotation of the bidirectional threaded screw to automatically operate the centering component and the clamping component to center and clamp the brake pad on the support plate, thereby solving the problems of inaccurate positioning and the need for manual intervention in traditional grinding equipment; the clamping component adopts a multi-level pendulum plate structure, which can adaptively adjust the inclination angle of each level of the pendulum plate, so that the brake pad, whether round, square or special-shaped, can stably abut against the surface of the pendulum plate, thereby improving the adaptability to brake pads of different specifications and avoiding frequent replacement of fixtures.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A grinding device for automobile brake pads, comprising a fixedly connected base and a frame, a grinding assembly is arranged on the frame, two side plates are arranged on the base, a bidirectional movable assembly is arranged between the two side plates, a centering assembly is transmission-connected to the bidirectional movable assembly, clamping assemblies are respectively arranged on both sides of the centering assembly, the clamping assembly and the bidirectional movable assembly are connected to the bidirectional movable assembly through a moving block to receive its drive; the clamping assembly comprises a chassis and a swing plate, an open blind groove is arranged on the chassis, and the swing plate and the open blind groove are rotatably connected through a rotary T-shaped structure; the rotary T-shaped structure comprises a swing T-shaped groove arranged at the bottom of the open blind groove, a swing T-shaped piece fixed at the bottom of the swing plate, and the swing T-shaped piece is slidably installed inside the swing T-shaped groove; the swing plate adopts a multi-level nested structure, each level of the swing plate is provided with an open blind groove and the next level of the swing plate is arranged through the rotary T-shaped structure, and the number of the swing plates increases layer by layer.

[0008] Preferably, the bidirectional moving component includes a screw motor and a bidirectional threaded screw, the screw motor is fixed on the side plate of the base, the bidirectional threaded screw is installed between the two side plates and connected to the output end of the screw motor, a track rod is set on the parallel side of the bidirectional threaded screw, and the two moving blocks are respectively screwed to the two ends of the bidirectional threaded screw and slidably sleeved on the track rod.

[0009] Preferably, the centering component includes a supporting plate for placing brake pads, a linkage block and two guide frames, the linkage block is threadedly sleeved on the bidirectional threaded screw and slidably sleeved on the track rod, the linkage block and the moving block on one side are screwed on the same threaded segment of the bidirectional threaded screw, and a T-shaped slide groove is provided at the top of the linkage block; the supporting plate is arranged above the linkage block, and the two sides of the supporting plate are symmetrically fixedly connected to the guide frames, and the guide frames are respectively fixedly connected to the side parts of the base, and guide grooves are provided on the bottom plate of the guide frame, and guide rods are provided on the top of the guide rods, and sliders are provided on the guide rods, and centering pushing units are symmetrically provided on the tops of the two sliders; a dovetail groove is provided at the bottom end of the slider parallel to the axis direction of the track rod, a dovetail rod is slidably provided in the dovetail groove, the dovetail rod passes through the guide groove, and a limiting slide is fixed at the end of the dovetail rod, and the limiting slide is installed in the T-shaped slide groove.

[0010] Preferably, the guide groove includes a first longitudinal groove and a second longitudinal groove arranged parallel to the axis direction of the track rod, the length of the first longitudinal groove is greater than the second longitudinal groove, and a first arc groove and a second arc groove are respectively arranged on the first longitudinal groove near the end area and connected to the two ends of the second longitudinal groove.

[0011] Preferably, the arc groove close to the moving block with the same thread segment as the linkage block is the second arc groove; a first one-way plate is set at the connection between the first arc groove and the first longitudinal groove, and a second one-way plate is set at the connection between the first longitudinal groove and the second arc groove; the first one-way plate is only allowed to enter the first longitudinal groove from the first arc groove, and the second one-way plate is only allowed to move from the first arc groove to the second arc groove in the first longitudinal groove.

[0012] Preferably, the first one-way plate and the second one-way plate have similar structures, both including a baffle and a rotating shaft, the rotating shaft is installed in the guide groove, the baffle is rotatably installed on the rotating shaft, a torsion spring is installed on the rotating shaft, and the end of the baffle away from the rotating shaft abuts against the inner wall of the guide groove.

[0013] Preferably, the centering pushing unit includes a box body fixedly arranged on the top of the slider, an opening is provided on one side of the box body close to the supporting plate, a pushing component and a linkage component are provided inside the opening, and wing plates are slidably provided on both sides of the top of the box body, and a limiting slide groove is provided on the wing plate along the direction of the track rod, and a T-shaped limit block is provided at the top of the box body corresponding to the limiting slide groove, and the T-shaped limit block is sleeved in the limiting slide groove; a walking groove is provided on the top of the box body, and the connecting plate of the linkage component passes through the walking groove and is fixedly connected to the bottom of the wing plate; a wing plate guide groove is provided on the wing plate, and the guide rod of the pushing component is sleeved in the wing plate guide groove; when the linkage component drives the two wing plates to move relative to each other through the connecting plate, the driving guide rod slides in the wing plate guide groove, and the pushing component is expanded and moved toward the center of the supporting plate to push the brake pad to the center.

[0014] The transmission gears are connected with the gear train of the said cam and the gears are connected with the gear train of the said cam, and the gears are connected with the gear train of the said cam and the gears are connected with the gear train of the said cam.

[0015] Preferably, the surrounding and pushing components include two groups of several box bodies arranged in a linear manner, and the two groups of linearly arranged box bodies are respectively located on both sides of the support plate; adjacent box bodies are connected by hinges, and the hinges of several box bodies located in the middle are set as reinforced hinges, and reinforced pins are set on the reinforced hinges, and the reinforced pins are installed between the upper and lower plates of the box body; among the several linearly arranged box bodies, guide rods are fixed on the box bodies located at both ends, and the guide rods are respectively located on the upper and lower end surfaces of the box body, the guide rods at the upper end of the box body are passed through the guide groove of the wing plate, and the guide rods at the lower end of the box body are passed through the track groove of the support plate; when the linearly arranged box bodies on both sides are driven to unfold by the wing plate, the several box bodies gradually form an enclosure, pushing the brake pad on the support plate in the center.

[0016] Preferably, an opening is provided on the end face of the box body close to the supporting plate, a second transmission shaft is installed inside the box body, a second driving gear and a second driven gear are fixed on the second transmission shaft, the second driving gear meshes with a pressure rod tooth plate, and the other end of the pressure rod tooth plate has a pressure rod, which slides through and extends to the outside of the side wall of the box body; the second driven gear meshes with the box body tooth plate, and the box body tooth plate is slidably arranged inside the box body, a tension spring is provided between the box body tooth plate and the inner wall of the box body, an elastic push block is fixed on the end of the box body tooth plate close to the box body opening, and a limiting telescopic rod is provided on the elastic push block parallel to the box body tooth plate; the elastic push block has two push blocks arranged in parallel, and a reset spring is installed between the two push blocks.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In the device of the present invention, when centering brake pads of different shapes or specifications, it is only necessary to control the rotation of the bidirectional threaded screw to automatically operate the centering assembly and clamping assembly to center and clamp the brake pad on the support plate, thus solving the problems of inaccurate positioning and the need for manual intervention in traditional grinding equipment.

[0019] Specifically, when the screw motor drives the bidirectional threaded screw to rotate, the two moving blocks are guided by the track rod to move relative to or away from each other, and the linkage block and the moving block on one side are screwed on the same thread segment of the bidirectional threaded screw to maintain synchronous movement, thereby driving the entire centering assembly to move accordingly; since the linkage block of the centering assembly and the moving blocks on both sides are set at a distance, when the moving block and the clamping assembly approach each other, the centering assembly automatically moves away after completing the centering adjustment of the brake pad, which is beneficial to the subsequent clamping of the clamping assembly;

[0020] In the present invention, the supporting plate is arranged above the linkage block as a bearing platform for the brake pad, and the guide frames symmetrically connected on both sides are fixed to the side of the base to provide a stable guiding foundation, and the slider sleeved on the guide rod at the top of the guide frame carries the centering and surrounding pushing unit; the dovetail rod passes through the guide groove of the guide frame bottom plate and is fixed with a limit slide at the end to be installed in the T-shaped slide groove at the top of the linkage block, forming a complete motion transmission chain, whose working mechanism is that when the linkage block moves with the bidirectional threaded screw, the limit slide and the dovetail rod are driven to move in the guide groove through the T-shaped slide groove, thereby driving the slider to slide along the guide rod, activating the centering and surrounding pushing unit to start working;

[0021] Since the guide groove adopts a composite structure design of a first longitudinal groove and a second longitudinal groove arranged in parallel, and is connected by the first arc groove and the second arc groove, the slider automatically withdraws after completing the centering of the brake pad in cooperation with the limiting function of the one-way plate, making room for operation of the clamping assembly; through the cooperation of the first tooth plate and the first gear, the linkage component on the box body converts the movement stroke of the slider into the rotation of the first driving gear, driving the coaxial first driven gear to rotate, and the first driven gear drives the two second tooth plates and the corresponding wing plates to produce relative horizontal movement; the wing plates are connected to the guide rods of the surrounding pushing components through the wing plate guide grooves. When the wing plates move relative to each other, the guide grooves drive the guide rods to move toward the center direction of the support plate, and move multiple linearly arranged box bodies toward the center direction of the support plate, so that several box bodies gradually form an arc in the direction away from the reinforcing pin shaft, so as to achieve symmetrical encirclement on both sides of the support plate, gradually forming a circle, pushing the brake pad to the center, and completing the initial centering adjustment of the brake; As several boxes gradually form a circle, the pressure rod on the box squeezes the adjacent box, and the pressure rod moves to produce a stroke. The pressure rod pushes the elastic pressure block out of the box through the tooth plate and gear. The elastic pressure block squeezes and pushes the brake pad to fine-tune the centering.

[0022] 2. In the device of the present invention, the clamping assembly adopts a multi-level wobble plate structure, which can adaptively adjust the inclination angle of each level of the wobble plate, so that the brake pad, whether round, square or special-shaped, can stably abut against the wobble plate surface, improving the adaptability to brake pads of different specifications and avoiding frequent replacement of the clamp;

[0023] Specifically, a rotatable connection is achieved between the open blind groove on the chassis and the pendulum plate by using a rotary T-shaped structure, so that the rotary T-shaped part can slide freely inside the rotary T-shaped groove, thereby realizing flexible adjustment and positioning of the pendulum plate. This multi-level nested structure design enables each level of the pendulum plate to be provided with an open blind groove and the next level of the pendulum plate to be set through the rotary T-shaped structure. The number of pendulum plates increases layer by layer to form a multi-level structure, which can automatically adjust the angle and position of each level of the pendulum plate according to the different shapes or specifications of the brake pads, thereby improving the versatility and adaptability of the device and avoiding the tedious operation of replacing the clamp due to differences in the specifications of the brake pads. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional schematic diagram of the overall installation structure of the device of the present invention;

[0025] Figure 2 This is a schematic diagram of the installation structure of the guide frame and the supporting plate of the device of the present invention;

[0026] Figure 3 It is a schematic perspective view of the disassembled structure of the clamping assembly of the device of the present invention;

[0027] Figure 4 This is a three-dimensional schematic diagram of the disassembled structure of the surrounding pushing components of the device of the present invention;

[0028] Figure 5 This is a three-dimensional schematic diagram of the position relationship of the guide grooves of the device of the present invention;

[0029] Figure 6 This is a three-dimensional schematic diagram of the detachable structure of the wing plate and the box body of the device of the present invention;

[0030] Figure 7 A three-dimensional diagram of the installation structure of the linkage components of the device of the present invention Figure 1 ;

[0031] Figure 8 It is a partial cross-sectional perspective diagram of the top plate of the box body of the device of the present invention;

[0032] Figure 9 A three-dimensional diagram of the installation structure of the linkage components of the device of the present invention Figure 2 ;

[0033] Figure 10 It is a three-dimensional schematic diagram of the linear arrangement of the device boxes of the present invention;

[0034] Figure 11 This is a three-dimensional schematic diagram of the internal state of the installation structure of the box body of the device of the present invention;

[0035] In the figure: base 11; support leg 12; frame 13; grinding disc 14; electric telescopic cylinder 15; rotating motor 16; screw motor 17; bidirectional threaded screw 18; track rod 19; moving block 20; clamping assembly 21; linkage block 22; guide frame 23; support plate 24; slider 25; box 26; chassis 27; open blind slot 28; swing T-slot 29; swing plate 30; swing T-piece 31; guide rod 32; guide slot 33; Through slot 34; dovetail slot 35; dovetail rod 36; limit slide 37; T-shaped slot 38; wing plate 39; track slot 40; lifting plate 41; first longitudinal slot 42; second longitudinal slot 43; first arcuate slot 44; second arcuate slot 45; first one-way plate 46; limit slide 47; T-shaped limit block 48; wing plate guide slot 49; guide rod 50; travel slot 51; connecting plate -52; first transmission shaft-53; first driving gear-54; first tooth plate-55; first driven gear-56; second tooth plate-57; box body-58; hinge-59; reinforced hinge-60; reinforced pin-61; second transmission shaft-62; second driving gear-63; second driven gear-64; pressure rod tooth plate-65; box body tooth plate-66; tension spring-67; elastic push block-68; pressure rod-69. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0037] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and should not be understood as indicating or implying relative importance.

[0038] Figures 1-11As shown in, a grinding device for automobile brake pads includes a fixedly connected base 11 and a frame 13, a grinding assembly is arranged on the frame 13, two side plates are arranged on the base 11, a bidirectional movable assembly is arranged between the two side plates, a centering assembly is transmission-connected to the bidirectional movable assembly, clamping assemblies 21 are arranged on both sides of the centering assembly, the clamping assembly 21 is connected to the bidirectional movable assembly through a moving block 20 to receive its drive; the clamping assembly 21 includes a chassis 27 and a swing plate 30, an open blind groove 28 is arranged on the chassis 27, and the swing plate 30 is rotatably connected to the open blind groove 28 through a rotary T-shaped structure; the rotary T-shaped structure includes a rotary T-shaped groove 29 arranged at the bottom of the open blind groove 28, and a rotary T-shaped piece 31 fixed at the bottom of the swing plate 30, and the rotary T-shaped piece 31 is slidably installed inside the rotary T-shaped groove 29; the swing plate 30 adopts a multi-level nested structure, and each level of the swing plate is provided with an open blind groove and the next level of the swing plate is arranged through the rotary T-shaped structure, and the number of the swing plates increases layer by layer.

[0039] The grinding assembly includes an electric telescopic cylinder 15 arranged on the frame 13. The bottom of the electric telescopic cylinder 15 is connected to the lifting frame. A rotating motor 16 is installed inside the lifting frame. A grinding disc is set at the output end of the rotating motor 16, and a grinding disc 14 is installed on the grinding disc. After the brake pad on the supporting plate 24 is centered and clamped, the grinding assembly is started again, and the upper and lower heights are adjusted by the electric telescopic rod 15 to complete the grinding.

[0040] It should be noted that a support leg 12 is provided at the bottom of the base 11 .

[0041] When the screw motor 17 drives the bidirectional threaded screw 18 to rotate, since the two ends of the bidirectional threaded screw 18 adopt opposite thread design, the two moving blocks 20 can move relative to or away from each other under the guidance of the track rod 19, and the linkage block 22 and the moving block 20 on one side are screwed on the same thread segment of the bidirectional threaded screw 18 to maintain synchronous movement, thereby driving the entire centering assembly to move accordingly; since the linkage block 22 of the centering assembly is set at a distance from the moving blocks 20 on both sides, when the moving block 20 and the clamping assembly 21 approach each other, the centering assembly automatically moves away after completing the centering adjustment of the brake pad, which is beneficial to the subsequent clamping of the clamping assembly 21;

[0042] Furthermore, the bidirectional movement assembly includes a screw motor 17 and a bidirectional threaded screw 18. The screw motor 17 is fixed to the side plate of the base 11. The bidirectional threaded screw 18 is installed between the two side plates and connected to the output end of the screw motor 17. A track rod 19 is provided on the parallel side of the bidirectional threaded screw 18. Two moving blocks 20 are respectively screwed to the two ends of the bidirectional threaded screw 18 and slidably sleeved on the track rod 19.

[0043] The two ends of the bidirectional threaded screw 18 are provided with opposite threads, and the threads at both ends of the bidirectional threaded screw 18 are screwed to the moving blocks 20 on both sides respectively; when the bidirectional threaded screw 18 is driven by the screw motor 17, the moving blocks 20 on both sides move relative to or away from each other, driving the clamping assemblies on the corresponding sides to move relative to each other to achieve clamping, and move away from each other to achieve loosening; it should be noted that the threaded segment on one side of the bidirectional threaded screw 18 is screwed to the linkage block 22 in the centering assembly and the adjacent moving block 20, while the threaded segment on the other side of the bidirectional threaded screw 18 is screwed only to the adjacent moving block 20;

[0044] Since the chassis 27 of the clamping components 21 on both sides approach the centering component in the air to complete the clamping and then retreat, it is prevented that the moving blocks 20 on both sides collide with the centering component or interfere with it;

[0045] The threaded connection section between the linkage block 22 and the bidirectional threaded screw 18 may have a thread pitch different from that of the joint section between the linkage block 22 and the bidirectional threaded screw 18 according to the actual stroke or running time.

[0046] In the device of the present invention, the clamping assembly 21 adopts a multi-level wobble plate 30 structure, which can adaptively adjust the inclination angle of each level of the wobble plate, so that the brake pad, whether round, square or irregular in shape, can stably abut against the surface of the wobble plate 30, improving the adaptability to brake pads of different specifications and avoiding frequent replacement of the clamp;

[0047] Specifically, a rotatable connection is achieved between the open blind groove 28 on the chassis 27 and the swing plate 30 by using a rotary T-shaped structure, so that the rotary T-shaped part 31 can slide freely inside the rotary T-shaped groove 29, thereby realizing flexible adjustment and positioning of the swing plate 30. This multi-level nested structure design enables each level of the swing plate to be provided with an open blind groove and the next level of the swing plate to be set through the rotary T-shaped structure. The number of the swing plates increases layer by layer to form a multi-level structure, which can automatically adjust the angle and position of each level of the swing plate according to the different shapes or specifications of the brake pads, thereby improving the versatility and adaptability of the device and avoiding the tedious operation of replacing the clamp due to differences in the specifications of the brake pads.

[0048] Furthermore, the centering component includes a supporting plate 24 for placing brake pads, a linkage block 22 and two guide frames 23. The linkage block 22 is screwed onto the bidirectional threaded screw 18 and slidably mounted on the track rod 19. The linkage block 22 and the moving block 20 on one side are screwed onto the same threaded segment of the bidirectional threaded screw 18. A T-shaped slide groove 38 is provided at the top of the linkage block 22. The supporting plate 24 is provided above the linkage block 22. Both sides of the supporting plate 24 are symmetrically fixedly connected to the guide frames 23. The guide frames 23 are respectively fixedly connected to the side portions of the base 11. The bottom plate of the guide frame 23 A guide groove 33 is provided on each of the guide frames 23, a guide rod 32 is provided on the top of each guide frame 23, a slider 25 is sleeved on the guide rod 32, a through groove 34 corresponding to the guide rod 32 is provided on the slider 25, the guide rod 32 is slidably passed through the through groove 34, and a centering pushing unit is symmetrically provided on the top of the two sliders 25; a dovetail groove 35 is provided at the bottom end of the slider 25 parallel to the axial direction of the track rod 19, a dovetail rod 36 is slidably provided in the dovetail groove 35, the dovetail rod 36 passes through the guide groove 33, and a limiting slide 37 is fixed at the end of the dovetail rod 36, and the limiting slide 37 is installed in the T-shaped slide groove 38.

[0049] The support plate 24 is arranged above the linkage block 22 as a bearing platform for the brake pads. The guide frames 23 symmetrically connected on both sides are fixed to the sides of the base 11 to provide a stable guiding foundation. The slider 25 mounted on the guide rod 32 at the top of the guide frame 23 carries the centering and surrounding push unit.

[0050] In the present invention, the dovetail rod 36 passes through the guide groove 33 of the bottom plate of the guide frame 23 and a limiting slide 37 is fixed at the end and installed in the T-shaped slide 38 at the top of the linkage block 22, forming a complete motion transmission chain. Its working mechanism is that when the linkage block 22 moves with the bidirectional threaded screw 18, the limiting slide 37 and the dovetail rod 36 are driven to move in the guide groove 33 through the T-shaped slide 38, thereby driving the slider 25 to slide along the guide rod 32, activating the centering push unit to start working.

[0051] In the device of the present invention, the centering assembly and the clamping assembly 21 are operated only by the rotation of the bidirectional threaded screw 18, so that the brake pad on the support plate 24 is automatically centered and clamped. Brake pads of different shapes or specifications can be centered, thereby solving the problems of inaccurate positioning and the need for manual intervention in traditional grinding equipment. The working principle and function will be explained in detail below.

[0052] Furthermore, the guide groove 33 includes a first longitudinal groove 42 and a second longitudinal groove 43 arranged parallel to the axis direction of the track rod 19, the first longitudinal groove 42 is longer than the second longitudinal groove 43, and the first longitudinal groove 42 is connected to the two ends of the second longitudinal groove 43 by a first arc groove 44 and a second arc groove 45 respectively. Furthermore, the arc groove close to the moving block 20 of the same threaded section as the linkage block 22 is the second arc groove 45; the first one-way plate 46 and the first one-way plate 46 are arranged at the connection between the first arc groove 44 and the first longitudinal groove 42. A second one-way plate is provided at the connection between the longitudinal groove 42 and the second arc-shaped groove 45; the first one-way plate 46 is only allowed to enter the first longitudinal groove 42 from the first arc-shaped groove 44, and the second one-way plate is only allowed to move from the first arc-shaped groove 44 toward the second arc-shaped groove 45 in the first longitudinal groove 42; further, the first one-way plate 46 and the second one-way plate have similar structures, both including a baffle and a rotating shaft, the rotating shaft is installed in the guide groove 33, the baffle is rotatably installed on the rotating shaft, a torsion spring is installed on the rotating shaft, and the end of the baffle away from the rotating shaft abuts against the inner wall of the guide groove.

[0053] Since the guide groove 33 adopts a composite structure design of a first longitudinal groove 42 and a second longitudinal groove 43 arranged in parallel, and is then connected by a first arc groove 44 and a second arc groove 45, and cooperates with the limiting function of the one-way plate, the slider 25 automatically withdraws after moving to complete the centering of the brake pad, making room for operation of the clamping assembly 21.

[0054] Furthermore, the centering pushing unit includes a box body 26 fixed to the top of the slider 25, and an opening is provided on one side of the box body 26 close to the supporting plate 24, and a pushing component and a linkage component are provided inside the opening. Wing plates 39 are slidably provided on both sides of the top of the box body 26, and a limiting slide groove 47 is provided on the wing plate 39 along the direction of the track rod 19, and a T-shaped limit block 48 is provided at the top of the box body 26 corresponding to the limiting slide groove 47; a walking groove 51 is provided at the top of the box body 26, and the connecting plate 52 of the linkage component passes through the walking groove 51 and is fixedly connected to the bottom of the wing plate 39; a wing plate guide groove 49 is provided on the wing plate 39, and the guide rod 50 of the pushing component is sleeved in the wing plate guide groove 49; when the linkage component drives the two wings 39 to move relative to each other through the connecting plate 52, the guide rod 50 is driven to slide in the wing plate guide groove 49, unfolding the pushing component and moving it toward the center of the supporting plate 24 so that the brake pad is centered.

[0055] Furthermore, the linkage component includes a first transmission shaft 53, on which a first driving gear 54 and a first driven gear 56 are installed. The first transmission shaft 53 is rotatably installed between the top plate and the bottom plate of the box body 26 and the end thereof extends through and extends to the outside of the bottom plate. The first driving gear 54 is located below the bottom plate of the box body 26, and the first driving gear 54 engages with a first tooth plate 55, which is fixedly mounted on the supporting plate 24; the first driven gear 56 is located below the top plate of the box body 26, and two center arrays are arranged on the first driven gear 56. The two second tooth plates 57 are slidably mounted on the inner top wall of the box body 26, and the ends of the two second tooth plates 57 are fixedly provided with connecting plates 52. The connecting plates 52 pass through the walking grooves 51 of the top plate of the box body 26 and are fixedly connected to the bottom of the adjacent wing plate 39; when the slider 25 is driven to move toward the supporting plate 24, the first tooth plate 55 engages with the first driving gear 54, and drives the second tooth plates 57 and the wing plates 39 on both sides to move through the coaxial first driven gear 56, so that the two wing plates 39 move relative to each other.

[0056] Furthermore, the surrounding pushing component includes two groups of box bodies 58 arranged linearly, and the two groups of linearly arranged box bodies are respectively located on both sides of the support plate 24; adjacent box bodies are connected by hinges 59, and the hinges in the middle of several box bodies are set as reinforcing hinges 60, and reinforcing pins 61 are set on the reinforcing hinges, and the reinforcing pins 61 are installed between the top and bottom plates of the box body 26; among the several box bodies arranged linearly, guide rods 50 are fixed on the box bodies 58 at both ends, and the guide rods 50 are respectively located on the upper and lower end surfaces of the box bodies 58, the guide rods at the upper end of the box bodies are inserted into the wing plate guide groove 49, and the guide rods at the lower end of the box bodies are inserted into the track groove 40 of the support plate 24; the upper and lower ends of the guide rods 50 are provided with limit caps, which slide against the wing plates 39 and the support plate 24; when the linearly arranged box bodies on both sides are driven to unfold by the wing plates 39, the several box bodies 58 gradually form a siege, pushing the brake pads on the support plate 24 in the center;

[0057] Several linearly arranged box bodies can rotate around the reinforcing pin 61. Among the linearly arranged box bodies, adjacent box bodies 58 can rotate around the adjacent hinges 59 to form an arc. When the linearly arranged box bodies on both sides are driven to unfold by the wing plates 39, the several box bodies 58 on both sides of the support plate 24 gradually form a siege, pushing the brake pads on the support plate 24 in the center.

[0058] Through the cooperation of the first toothed plate 55 and the first gear 54, the linkage component on the housing 26 converts the movement of the slider 25 into the rotation of the first driving gear 54, which drives the coaxial first driven gear 56 to rotate. The first driven gear 56 drives the two second toothed plates 57 and the corresponding wing plates 39 to produce relative horizontal movement;

[0059] The wing plate 39 is connected to the guide rod 50 of the surrounding pushing component through the wing plate guide groove 49. When the wing plate 39 moves relatively, the guide groove 49 drives the guide rod 50 to move toward the center of the support plate 24, and moves multiple linearly arranged box bodies 58 toward the center of the support plate 24, so that several box bodies 58 gradually form an arc in the direction away from the reinforcing pin 61, thereby achieving symmetrical encirclement on both sides of the support plate 24, gradually forming a circle, pushing the brake pad to the center, and completing the initial centering adjustment of the brake.

[0060] Furthermore, an opening is provided on the end face of the box body 58 close to the supporting plate 24, and a second transmission shaft 62 is installed inside the box body 58. A second driving gear 63 and a second driven gear 64 are fixed on the second transmission shaft 62. The second driving gear 63 meshes with a pressure rod tooth plate 65. The other end of the pressure rod tooth plate 65 has a pressure rod 69, and the pressure rod 69 extends through the side wall of the box body 58; the second driven gear 64 meshes with a box body tooth plate 66, and the box body tooth plate 66 is slidably arranged inside the box body. A tension spring 67 is provided between the box body tooth plate 66 and the inner wall of the box body. An elastic push block 68 is fixed on the end of the box body tooth plate 66 close to the box body opening, and a limiting telescopic rod (not shown in the figure) is provided on the elastic push block 68 parallel to the box body tooth plate 66; the elastic push block 68 has two push blocks arranged in parallel, and a return spring is installed between the two push blocks.

[0061] A blind groove is provided at the center of the supporting plate 24, an opening is provided at the bottom of the blind groove, a lifting plate 41 is installed in the blind groove, and a telescopic cylinder (not shown in the figure) is installed at the bottom of the blind groove. The output end of the telescopic cylinder passes through the opening and is connected to the lifting plate 41; the telescopic cylinder and the lifting plate 41 cooperate to lift the brake pad that has been centered, so as to achieve adjustment for brake pads of different thicknesses.

[0062] As several box bodies 58 gradually form a circle, the pressure rod 69 on the box body 58 squeezes the adjacent box body, and the pressure rod 69 moves to generate a stroke. The pressure rod 69 pushes the elastic pressure block 68 out of the box body through the tooth plate and gear. The elastic pressure block 68 squeezes and pushes the brake pad to fine-tune the centering.

[0063] The present invention illustrates the technical concept of the present invention through the above-mentioned embodiments, but the present invention is not limited to the above-mentioned embodiments. In other words, it does not mean that the present invention must rely on the above-mentioned embodiments to be implemented. Those skilled in the art should understand that relevant improvements to the present invention fall within the scope of protection and disclosure of the present invention.

Claims

1. A grinding device for automobile brake pads, comprising a base (11) and a frame (13) fixedly connected, a grinding assembly being arranged on the frame (13), characterized in that: Two side plates are provided on the base (11), a bidirectional movable assembly is provided between the two side plates, a centering assembly is connected to the bidirectional movable assembly in a transmission manner, a clamping assembly (21) is provided on both sides of the centering assembly, and the clamping assembly (21) is connected to the bidirectional movable assembly through a moving block (20) to receive its drive; the clamping assembly (21) includes a chassis (27) and a swing plate (30), an open blind groove (28) is provided on the chassis (27), and the swing plate (30) and the open blind groove (28) are rotatably connected through a rotating T-shaped structure; the rotating T-shaped structure includes a rotating T-shaped groove (29) provided at the bottom of the open blind groove (28), and a rotating T-shaped piece (31) fixed at the bottom of the swing plate (30), and the rotating T-shaped piece (31) is slidably installed inside the rotating T-shaped groove (29); the swing plate (30) adopts a multi-level nested structure, and each level of the swing plate is provided with an open blind groove and the next level of the swing plate is provided through the rotating T-shaped structure, and the number of the swing plates increases layer by layer.

2. The grinding device for automobile brake pads according to claim 1, characterized in that: The bidirectional moving assembly comprises a screw motor (17) and a bidirectional threaded screw (18), wherein the screw motor (17) is fixed on the side plate of the base (11), the bidirectional threaded screw (18) is installed between the two side plates and connected to the output end of the screw motor (17), a track rod (19) is arranged on the parallel side of the bidirectional threaded screw (18), and two moving blocks (20) are respectively screwed to the two ends of the bidirectional threaded screw (18) and slidably sleeved on the track rod (19).

3. The grinding device for automobile brake pads according to claim 2, characterized in that: The centering assembly comprises a supporting plate (24) for placing brake pads, a linkage block (22) and two guide frames (23), wherein the linkage block (22) is screwed and sleeved on a bidirectional threaded screw (18) and slidably sleeved on a track rod (19), the linkage block (22) and a moving block (20) on one side are screwed on the same threaded section of the bidirectional threaded screw (18), and a T-shaped slide groove (38) is provided on the top of the linkage block (22); the supporting plate (24) is provided above the linkage block (22), and the two sides of the supporting plate (24) are symmetrically fixedly connected to the guide frames (23), and the guide frames (23) are respectively fixedly connected to the base The side of the guide frame (11) is provided with a guide groove (33) on the bottom plate of the guide frame (23), the top of the guide frame (23) is provided with a guide rod (32), the guide rod (32) is sleeved with a slider (25), and the tops of the two sliders (25) are symmetrically provided with a centering push unit; the bottom end of the slider (25) is provided with a dovetail groove (35) parallel to the axis direction of the track rod (19), and a dovetail rod (36) is slidably provided in the dovetail groove (35), the dovetail rod (36) passes through the guide groove (33), and a limiting slide plate (37) is fixed at the end of the dovetail rod (36), and the limiting slide plate (37) is installed in the T-shaped slide groove (38).

4. The grinding device for automobile brake pads according to claim 3, characterized in that: The guide groove (33) includes a first longitudinal groove (42) and a second longitudinal groove (43) arranged parallel to the axis direction of the track rod (19). The length of the first longitudinal groove (42) is greater than that of the second longitudinal groove (43). A first arc groove (44) and a second arc groove (45) are respectively arranged on the first longitudinal groove (42) near the end area and connected to the two ends of the second longitudinal groove (43).

5. The grinding device for automobile brake pads according to claim 4, characterized in that: The arc groove close to the moving block (20) of the same thread segment as the linkage block (22) is the second arc groove (45); a first one-way plate (46) is provided at the connection between the first arc groove (44) and the first longitudinal groove (42), and a second one-way plate is provided at the connection between the first longitudinal groove (42) and the second arc groove (45); the first one-way plate (46) is only allowed to enter the first longitudinal groove (42) from the first arc groove (44), and the second one-way plate is only allowed to move in the direction from the first arc groove (44) to the second arc groove (45) in the first longitudinal groove (42).

6. The grinding device for automobile brake pads according to claim 5, characterized in that: The first one-way plate (46) and the second one-way plate have similar structures, both comprising a baffle and a rotating shaft, the rotating shaft being installed in the guide groove (33), the baffle being rotatably installed on the rotating shaft, a torsion spring being installed on the rotating shaft, and an end of the baffle away from the rotating shaft abutting against the inner wall of the guide groove.

7. The grinding device for automobile brake pads according to claim 3, characterized in that: The centering push unit comprises a box body (26) fixedly mounted on the top of the slider (25), an opening is provided on one side of the box body (26) close to the supporting plate (24), a push component and a linkage component are provided inside the opening, wing plates (39) are slidably provided on both sides of the top of the box body (26), a limiting slide groove (47) is provided on the wing plate (39) along the direction of the track rod (19), a T-shaped limiting block (48) is provided at the top of the box body (26) corresponding to the limiting slide groove (47), and the T-shaped limiting block (48) is sleeved in the limiting slide groove (47); the box body (2 6), a running groove (51) is provided at the top of the linkage component, and a connecting plate (52) of the linkage component passes through the running groove (51) and is fixedly connected to the bottom of the wing plate (39); a wing plate guide groove (49) is provided on the wing plate (39), and a guide rod (50) of the surrounding pushing component is sleeved in the wing plate guide groove (49); when the linkage component drives the two wing plates (39) to move relative to each other through the connecting plate (52), the guide rod (50) is driven to slide in the wing plate guide groove (49), and the surrounding pushing component is expanded and moved toward the center of the supporting plate (24) to encircle and push the brake pad to the center.

8. The grinding device for automobile brake pads according to claim 7, characterized in that: The linkage component includes a first transmission shaft (53), a first driving gear (54) and a first driven gear (56) are installed on the first transmission shaft, the first transmission shaft (53) is rotatably installed between the upper and lower plates of the box body (26) and the end portion thereof extends through and extends to the outside of the bottom plate, the first driving gear (54) is located below the bottom plate of the box body (26), the first driving gear (54) engages with a first tooth plate (55), and the first tooth plate (55) is fixedly installed on the supporting plate (24); the first driven gear (56) is located below the top plate of the box body (26), and two second tooth plates (55) are arranged in an array on the center of the first driven gear (56). 7), two second tooth plates (57) are slidably mounted on the inner top wall of the box body (26), and the ends of the two second tooth plates (57) are fixedly provided with connecting plates (52), and the connecting plates (52) respectively penetrate the walking groove (51) of the top plate of the box body (26) and are fixedly connected to the bottom of the adjacent wing plate (39); when the slider (25) is driven to move toward the supporting plate (24), the first tooth plate (55) engages with the first driving gear (54), and drives the second tooth plates (57) and the wing plates (39) on both sides to move through the coaxial first driven gear (56), so that the two wing plates (39) move relative to each other.

9. The grinding device for automobile brake pads according to claim 7, characterized in that: The pushing component comprises two groups of linearly arranged box bodies (58), and the two groups of linearly arranged box bodies are respectively located on both sides of the supporting plate (24); adjacent box bodies are connected by hinges (59), and the hinges of the box bodies located in the middle are set as reinforcing hinges (60), and the reinforcing hinges are provided with reinforcing pins (61), and the reinforcing pins (61) are installed between the upper and lower plates of the box body (26); among the linearly arranged box bodies, the box bodies (58) located at both ends are fixed with guide rods (50), and the guide rods (50) are respectively located at the upper and lower end surfaces of the box body (58), the guide rods at the upper end of the box body are penetrated in the wing plate guide groove (49), and the guide rods at the lower end of the box body are penetrated in the track groove (40) of the supporting plate (24); when the linearly arranged box bodies on both sides are driven to unfold by the wing plate (39), the box bodies (58) gradually form a closure, and push the brake pad on the supporting plate (24) in the center.

10. The grinding device for automobile brake pads according to claim 9, characterized in that: An opening is provided on the end surface of the box body (58) close to the supporting plate (24), a second transmission shaft (62) is installed inside the box body (58), a second driving gear (63) and a second driven gear (64) are fixed on the second transmission shaft (62), the second driving gear (63) is engaged with a pressure rod tooth plate (65), the other end of the pressure rod tooth plate (65) is provided with a pressure rod (69), the pressure rod (69) slides through and extends to the outside of the side wall of the box body (58); the second driven gear (63) is engaged with a pressure rod tooth plate (65), and the pressure rod tooth plate (65) is provided with a pressure rod (69). The pressure rod (69) slides through and extends to the outside of the side wall of the box body (58); The movable gear (64) engages with the box body tooth plate (66), and the box body tooth plate (66) is slidably arranged inside the box body. A tension spring (67) is arranged between the box body tooth plate (66) and the inner wall of the box body. An elastic push block (68) is fixed to the end of the box body tooth plate (66) adjacent to the box body opening. A limiting telescopic rod is arranged on the elastic push block (68) parallel to the box body tooth plate (66); the elastic push block (68) has two parallel push blocks, and a return spring is installed between the two push blocks.

Images