Combined grinding machine for disc brake pad

Abstract

The invention provides a disc brake pad combined grinding machine which comprises a conveying device, a grooving device, a chamfering device, a disc surface rough grinding device and a disc surface accurate grinding device which are distributed in the length direction of the conveying device, and further comprises an adjustable limiting device used for limiting the two ends of a disc brake pad. The adjustable limiting device comprises two limiting plates and a distance adjusting mechanism; the distance adjusting mechanism is used for adjusting the distance between the two limiting plates so that the width of the conveying channel can be matched with the width of the disc brake pad. According to the scheme, due to the fact that the chamfering device, the disc face rough grinding device and the disc face fine grinding device are distributed in the length direction of the limiting plate, the adjustable limiting device can limit the disc brake pad in all the machining procedures at the same time, and compared with the prior art that an alignment device needs to be arranged before all the machining procedures, the machining efficiency is improved, and the machining efficiency is improved. According to the scheme, only one adjustable limiting device needs to be arranged, and the structure of the combined grinding machine is simplified.

Description

Technical Field

[0001] The present invention relates to the technical field of brake pad processing devices, and in particular to a disc brake pad combined grinding machine. Background Art

[0002] Disc brake pads are a component of the disc brake system. They are fixed to the vehicle's tire and rotate at the same speed as the disc, working with the caliper to brake the vehicle. After hot-pressing the disc brake pads, the friction material surface undergoes machining processes such as surface grinding, chamfering, and grooving. In existing technology, each of these machining steps is performed separately, resulting in low processing efficiency.

[0003] Patent announcement number CN219649182U discloses a new type of disc brake pad combination grinder, which integrates a grooving device, a chamfering grinding device, and a disc surface grinding device together, which can realize multi-process processing of disc brake pads and improve processing efficiency.

[0004] In the above scheme, a conveying device is used to realize the transfer of disc brake pads between various processes. In order to avoid the displacement of the disc brake pads during the transfer process, three alignment devices are also provided in the scheme. Since the alignment device can only adjust the disc brake pads at a local position in the longitudinal direction of the conveying device at a time, a separate alignment device needs to be set before each processing process. In the above scheme, the alignment devices are respectively provided in front of the grooving device, in front of the disc grinding device, and in front of the chamfering grinding device (since the disc grinding device includes a fine disc grinding device and a rough disc grinding device, in fact, the alignment devices should also be provided in front of the fine disc grinding device and the rough disc grinding device), which makes the structure of the combination grinder too complicated. Summary of the Invention

[0005] Based on the above problems existing in the prior art, the present invention aims to solve the technical problem that the disc brake pad combination grinder in the prior art needs to be equipped with corresponding alignment devices in front of each processing step, resulting in a relatively complex overall structure of the grinder.

[0006] The present invention provides a disc brake pad combination grinding machine, which includes a conveying device and a grooving device, a chamfering device, a disc surface rough grinding device, and a disc surface fine grinding device distributed along the length direction of the conveying device. The disc brake pad combination grinding machine also includes an adjustable limit device for limiting the two ends of the disc brake pad. The adjustable limit device includes:

[0007] Two limit plates are movably arranged on both sides of the conveying device, and a conveying channel for the disc brake pad is formed between the two limit plates; the chamfering device, the disc surface rough grinding device and the disc surface fine grinding device are distributed along the length direction of the limit plates;

[0008] The spacing adjustment mechanism is used to adjust the spacing between the two limit plates so that the width of the conveying channel matches the width of the disc brake pad.

[0009] According to one embodiment of the present invention, the conveying device includes:

[0010] A material supporting track is fixedly arranged in the conveying channel parallel to the limiting plate and is used to support the disc brake pad;

[0011] The material transfer mechanism includes a rotary drive assembly and multiple pusher plates. The multiple pusher plates are distributed on the rotary drive assembly and driven by the rotary drive assembly to perform rotary motion. When the pusher plates perform rotary motion, they push the disc brake pads to move on the material support track.

[0012] According to one embodiment of the present invention, the rotary drive assembly includes two chains arranged side by side and running synchronously, and both ends of the push plate are fixedly connected to the two chains respectively; the supporting track is located between the two chains.

[0013] According to one embodiment of the present invention, the disc brake pad assembly grinding machine further includes a frame, and the conveying device is arranged on the frame; the spacing adjustment mechanism includes:

[0014] A gantry is fixedly mounted on the frame, and the conveying device passes through the bottom of the gantry;

[0015] A double-ended screw, rotatably arranged on the gantry;

[0016] A first slider and a second slider are respectively slidably disposed on the gantry, and the first slider and the second slider can slide on the gantry along a length direction perpendicular to the conveying device; the first slider and the second slider are respectively provided with threaded holes, and are respectively connected to the two ends of the double-headed screw rod through threads;

[0017] Two connecting plates are fixedly connected to the first slider and the second slider respectively; the first slider and the second slider are fixedly connected to the two limiting plates respectively through the corresponding connecting plates;

[0018] The rotary drive member is fixedly arranged on the gantry, and the output end of the rotary drive member is fixedly connected to one end of the double-headed screw rod.

[0019] According to an embodiment of the present invention, at least two spacing adjustment mechanisms are provided and distributed along the length direction of the conveying device.

[0020] According to one embodiment of the present invention, the grooving device includes a grooving mechanism, a grooving angle adjustment mechanism and a first bidirectional adjustment module. The grooving mechanism is used to groove the surface of the disc brake pad. The grooving angle adjustment mechanism is used to adjust the angle of the grooving mechanism in the horizontal plane, thereby adjusting the grooving angle; the first bidirectional adjustment module is used to adjust the position of the grooving angle adjustment mechanism vertically and perpendicular to the length direction of the conveying device.

[0021] According to one embodiment of the present invention, the chamfering device includes a first chamfering mechanism and a second chamfering mechanism symmetrically arranged on both sides of the conveying device, and the first chamfering mechanism and the second chamfering mechanism are respectively used for grinding the chamfers at both ends of the disc brake pad.

[0022] According to one embodiment of the present invention, the first chamfering mechanism and the second chamfering mechanism both include a chamfering assembly and a second bidirectional adjustment module, the chamfering assembly is used to grind and chamfer the end of the disc brake pad, and the second bidirectional adjustment module is used to adjust the position of the chamfering assembly vertically and perpendicular to the length direction of the conveying device.

[0023] According to one embodiment of the present invention, a loading position is provided at one end of the conveying device, and a wedge-shaped notch is opened at one end of the limit plate corresponding to the loading position, so that an eight-shaped area is formed between the two limit plates distributed on both sides of the loading position.

[0024] According to an embodiment of the present invention, the disc brake pad assembly grinding machine further includes a dust cleaning device for cleaning dust on the surface of the disc brake pad after grinding.

[0025] The beneficial effects of the present invention are:

[0026] In a disc brake pad combination grinder provided by the present invention, the spacing adjustment mechanism can adjust the spacing between the two limit plates to be consistent with the width of the disc brake pad to be processed, so that the disc brake pad in the conveying channel can be limited. Since the chamfering device, the disc surface rough grinding device and the disc surface fine grinding device are distributed along the length direction of the limit plate, the adjustable limit device can simultaneously limit the disc brake pad in each processing step. Compared with the prior art that requires a pair of alignment devices to be set before each processing step, this solution only needs to set one adjustable limit device, which simplifies the structure of the combination grinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 is a schematic structural diagram of a disc brake pad according to an embodiment of the present invention;

[0029] Figure 2 Schematic diagram of the structure of a disc brake pad assembly grinder provided by an embodiment of the present invention;

[0030] Figure 3 2 is a schematic structural diagram of an adjustable limit device according to an embodiment of the present invention;

[0031] Figure numerals: 100, disc brake pad; 1, conveying device; 11, material support rail; 12, material moving mechanism; 121, rotary drive assembly; 1210, chain; 122, push plate; 2, slotting device; 21, slotting mechanism; 22, slotting angle adjustment mechanism; 23, first bidirectional adjustment module; 3, chamfering device; 31, first chamfering mechanism; 311, chamfering assembly; 312, second bidirectional adjustment module; 32, second chamfering mechanism; 4, disc surface rough grinding device; 5, disc surface fine grinding device; 6, adjustable limit device; 61, limit plate; 610, wedge-shaped notch; 62, spacing adjustment mechanism; 621, gantry; 622, double-headed screw; 623, first slider; 624, second slider; 625, connecting plate; 626, rotating drive member; 7, frame; 8, dust cleaning device. DETAILED DESCRIPTION

[0032] The following descriptions of the embodiments refer to the accompanying drawings to illustrate specific embodiments in which the present invention may be implemented.

[0033] The present invention provides a disc brake pad combined grinding machine, the disc brake pad 100 has a structure as shown in FIG. Figure 1 As shown, it includes a steel plate and a friction plate fixed on the surface of the steel plate; the structure of the disc brake pad combination grinder is as shown Figure 2As shown, it includes a conveying device 1 and a grooving device 2, a chamfering device 3, a disc surface rough grinding device 4 and a disc surface fine grinding device 5 distributed along the length direction of the conveying device 1. The disc brake pad combination grinding machine also includes an adjustable limit device 6 for limiting the two ends of the disc brake pad 100. The adjustable limit device 6 includes two limit plates 61 and a spacing adjustment mechanism 62, wherein the two limit plates 61 are movably arranged on both sides of the conveying device 1 and remain parallel to the conveying device 1. A conveying channel for the disc brake pad 100 is formed between the two limit plates 61, and the chamfering device 3, the disc surface rough grinding device 4 and the disc surface fine grinding device 5 are distributed along the length direction of the limit plates 61; the spacing adjustment mechanism 62 is used to adjust the spacing between the two limit plates 61 so that the width of the conveying channel matches the width of the disc brake pad 100.

[0034] It is easy to understand that the spacing adjustment mechanism 62 can adjust the spacing between the two limit plates 61 to be consistent with the width of the disc brake pad 100 to be processed, so that the disc brake pad 100 in the conveying channel can be limited. Since the chamfering device 3, the disc surface rough grinding device 4 and the disc surface fine grinding device 5 are distributed along the length direction of the limit plate 61, the adjustable limit device 6 can simultaneously limit the disc brake pad 100 in each processing step. Compared with the prior art that requires a pair of alignment devices to be set before each processing step, this solution only needs to set one adjustable limit device 6, which simplifies the structure of the combination grinder.

[0035] Please continue to refer to Figure 2 Specifically, the conveying device 1 includes a supporting rail 11 and a material moving mechanism 12, wherein the supporting rail 11 is fixedly arranged in the conveying channel parallel to the limiting plate 61, and is used to support the disc brake pad 100; the material moving mechanism 12 includes a rotary drive component 121 and a plurality of pusher plates 122, and the plurality of pusher plates 122 are evenly distributed on the rotary drive component 121 and driven by the rotary drive component 121 to perform a rotary motion. When the pusher plates 122 perform a rotary motion, they push the disc brake pad 100 to move on the supporting rail 11.

[0036] Since the support rail 11 generally extends in a straight line, at least a portion of the movement path of the push plate 122 is parallel to the support rail 11, and the length of this portion of the path is not less than the length of the support rail 11. Preferably, the rotary drive assembly 121 includes two chains 1210 arranged side by side and operating synchronously, with both ends of the push plate 122 fixedly connected to the two chains 1210 respectively; the support rail 11 is located between the two chains 1210.

[0037] It should be noted that setting the rotary drive assembly 121 to include two chains 1210 arranged side by side and running synchronously is only a preferred embodiment of the present invention, and does not constitute a limitation on the structure of the rotary drive assembly 121. In other embodiments, the rotary drive assembly 121 can also be set to include two transmission belts arranged side by side and running synchronously.

[0038] Generally, a loading position is provided at one end of the conveying device 1. In order to allow the disc brake pad 100 in the loading position to smoothly enter the conveying channel between the two limit plates 61, a wedge-shaped notch 610 is opened at one end of the limit plate 61 corresponding to the loading position, so that an eight-shaped area is formed between the two limit plates 61 distributed on both sides of the loading position.

[0039] According to an embodiment of the present invention, the disc brake pad assembly grinding machine further includes a frame 7, and the conveying device 1 is arranged on the frame 7; the structural diagram of the spacing adjustment mechanism 62 is as shown in FIG. Figure 3 As shown, it includes a gantry 621, a double-headed screw rod 622, a first slider 623, a second slider 624, two connecting plates 625 and a rotating drive member 626, wherein the gantry 621 is fixedly arranged on the frame 7, and the conveying device 1 passes through the bottom of the gantry 621; the double-headed screw rod 622 is rotatably arranged on the gantry 621, and the outer surfaces of the two ends of the double-headed screw rod 622 have threads with different rotation directions; the first slider 623 and the second slider 624 are respectively slidably arranged on the gantry 621, and the first slider 623 and the second slider 624 can be on the gantry 621 along a direction perpendicular to the conveying device 1 slides in the length direction; threaded holes are respectively opened on the first slider 623 and the second slider 624, and are respectively connected to the two ends of the double-headed screw rod 622 by threads; the two connecting plates 625 are respectively fixedly connected to the first slider 623 and the second slider 624; the first slider 623 and the second slider 624 are respectively fixedly connected to the two limit plates 61 through the corresponding connecting plates 625; the rotating drive member 626 is fixedly provided on the gantry 621, and the output end of the rotating drive member 626 is fixedly connected to one end of the double-headed screw rod 622. Specifically, the rotating drive member 626 is a motor with a reducer.

[0040] Preferably, since the length of the supporting rail 11 is relatively long, in order to ensure that the distance between the two limiting plates 61 remains consistent in the length direction after each adjustment, at least two spacing adjustment mechanisms 62 are provided and distributed along the length direction of the conveying device 1. The multiple spacing adjustment mechanisms 62 can each adjust the distance between the two limiting plates 61 to ensure that the distance between the two limiting plates 61 remains consistent in the length direction of the limiting plates 61.

[0041] Please continue to refer to Figure 2 According to one embodiment of the present invention, the grooving device 2 includes a grooving mechanism 21, a grooving angle adjustment mechanism 22 and a first bidirectional adjustment module 23. The grooving mechanism 21 is used to groove the surface of the disc brake pad 100. The grooving mechanism 21 has two grooving grinding wheels arranged side by side; the grooving angle adjustment mechanism 22 is used to adjust the angle of the grooving mechanism 21 in the horizontal plane, thereby adjusting the grooving angle. Specifically, the grooving angle adjustment mechanism 22 is a motor with a reducer; the first bidirectional adjustment module 23 is used to adjust the position of the grooving angle adjustment mechanism 22 vertically and perpendicular to the length direction of the conveying device 1.

[0042] The chamfering device 3 includes a first chamfering mechanism 31 and a second chamfering mechanism 32 symmetrically disposed on either side of the conveying device 1. The first chamfering mechanism 31 and the second chamfering mechanism 32 are respectively used to grind the chamfers at both ends of the disc brake pad 100. Each of the first chamfering mechanism 31 and the second chamfering mechanism 32 includes a chamfering assembly 311 and a second bidirectional adjustment module 312. The chamfering assembly 311 is used to grind the chamfers at the ends of the disc brake pad 100 and includes a chamfering grinding wheel. The second bidirectional adjustment module 312 is used to adjust the position of the chamfering assembly 311 vertically and perpendicular to the length of the conveying device 1.

[0043] Preferably, the power elements of the first bidirectional adjustment module 23 and the second bidirectional adjustment module 312 are both servo motors. Compared with ordinary motors, the response speed of servo motors is very fast and can complete the acceleration and deceleration process within milliseconds. Moreover, servo motors can control position, speed and torque with very high precision, usually with an accuracy of up to 0.001 degrees.

[0044] Furthermore, the disc brake pad combination grinder also includes a cleaning device 8, which is a process located behind the grooving device 2, the chamfering device 3, the disc surface rough grinding device 4 and the disc surface fine grinding device 5, and is used to clean the dust on the surface of the disc brake pad 100 after grinding.

[0045] In order to facilitate the understanding of this solution, the following Figure 1-Figure 3 The working principle of the present invention is described in detail:

[0046] In step 1, an external loading device loads the disc brake pad 100 to be ground to the loading position of the conveying device 1 .

[0047] In step 2, the rotary drive assembly 121 works, the two chains 1210 rotate synchronously, and drive the push plate 122 to rotate. When the push plate 122 rotates, it pushes the disc brake pad 100 in the upper material position into the conveying channel between the two limit plates 61, and then continues to push the disc brake pad 100 forward.

[0048] In step 3, when the disc brake pad 100 moves to the slotting process, the rotary drive assembly 121 pauses, and the slotting mechanism 21, the slotting angle adjustment mechanism 22, and the first bidirectional adjustment module 23 cooperate to slot the surface of the disc brake pad 100. During the slotting process, the pusher plate 122 and the two stop plates 61 limit the three surfaces of the disc brake pad 100 to prevent the disc brake pad 100 from rotating due to friction during the process.

[0049] In step 4, after the grooves are cut, the rotary drive assembly 121 is restarted, and the pusher plate 122 pushes the disc brake pad again into the chamfering process. After entering the chamfering process, the rotary drive assembly 121 is paused, and the first chamfering mechanism 31 and the second chamfering mechanism 32 grind the chamfers at both ends of the disc brake pad 100.

[0050] In step 5, after chamfering is completed, the rotary drive assembly 121 is started again, and the pusher plate 122 pushes the disc brake pad 100 again to enter the disc surface rough grinding process, the disc surface fine grinding process and the cleaning process in sequence. The disc surface rough grinding device 4 and the disc surface fine grinding device 5 perform rough grinding and fine grinding on the upper surface of the disc brake pad 100 in sequence, and the cleaning device 8 cleans the dust on the surface of the disc brake pad 100.

[0051] Step 6: After the disc brake pad 100 has gone through all the processing steps, an external unloading device unloads the disc brake pad 100.

[0052] To sum up, in a disc brake pad combination grinder provided by the present invention, the conveying channel formed between the two limit plates 61 can guide and limit the disc brake pad 100, and since the chamfering device 3, the disc surface rough grinding device 4 and the disc surface fine grinding device 5 are distributed along the length direction of the limit plate 61, the conveying channel can simultaneously limit the disc brake pad 100 in each processing step. Compared with the prior art that requires a pair of alignment devices to be set before each processing step, this scheme only needs to set one adjustable limit device 6, which simplifies the structure of the combination grinder.

[0053] It should be noted that although the present invention is disclosed above with specific embodiments, the above embodiments are not intended to limit the present invention. Ordinary technicians in this field can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined by the claims.

Claims

1. A disc brake pad combined grinding machine, comprising a conveying device (1) and a grooving device (2), a chamfering device (3), a disc surface rough grinding device (4) and a disc surface fine grinding device (5) distributed along the length direction of the conveying device (1), characterized in that: It also includes an adjustable limiting device (6) for limiting the two ends of the disc brake pad (100), and the adjustable limiting device (6) includes: Two limit plates (61) are movably arranged on both sides of the conveying device (1), and a conveying channel for the disc brake pad (100) is formed between the two limit plates (61). The chamfering device (3), the disc surface rough grinding device (4) and the disc surface fine grinding device (5) are distributed along the length direction of the limit plates (61); The spacing adjustment mechanism (62) is used to adjust the spacing between the two limit plates (61) so that the width of the conveying channel matches the width of the disc brake pad (100).

2. A disc brake pad combined grinding machine according to claim 1, characterized in that: The conveying device (1) comprises: A material supporting track (11), parallel to the limiting plate (61) and fixedly arranged in the conveying channel, for supporting the disc brake pad (100); The material transfer mechanism (12) comprises a rotary drive assembly (121) and a plurality of pusher plates (122). The plurality of pusher plates (122) are evenly distributed on the rotary drive assembly (121) and driven by the rotary drive assembly (121) to perform rotary motion. When the pusher plates (122) perform rotary motion, they push the disc brake pad (100) to move on the material support track (11).

3. A disc brake pad combined grinding machine according to claim 2, characterized in that: The rotary drive assembly (121) comprises two chains (1210) arranged side by side and operating synchronously, and the two ends of the push plate (122) are respectively fixedly connected to the two chains (1210); the supporting track (11) is located between the two chains (1210).

4. The disc brake pad combined grinding machine according to claim 1, characterized in that: It also comprises a frame (7), the conveying device (1) is arranged on the frame (7); the spacing adjustment mechanism (62) comprises: A gantry (621) is fixedly mounted on the frame (7), and the conveying device (1) passes through the bottom of the gantry (621); A double-ended screw rod (622) is rotatably disposed on the gantry (621); A first slider (623) and a second slider (624) are respectively slidably arranged on the gantry (621), and the first slider (623) and the second slider (624) can slide on the gantry (621) along a length direction perpendicular to the conveying device (1); threaded holes are respectively provided on the first slider (623) and the second slider (624), and are respectively connected to two ends of the double-headed screw rod (622) through threads; Two connecting plates (625) are respectively fixedly connected to the first slider (623) and the second slider (624); the first slider (623) and the second slider (624) are respectively fixedly connected to the two limiting plates (61) through the corresponding connecting plates (625); The rotating driving member (626) is fixedly arranged on the gantry (621), and the output end of the rotating driving member (626) is fixedly connected to one end of the double-headed screw rod (622).

5. The disc brake pad combined grinding machine according to claim 4, characterized in that: At least two spacing adjustment mechanisms (62) are provided and are distributed along the length direction of the conveying device (1).

6. The disc brake pad combined grinding machine according to claim 1, characterized in that: The slotting device (2) comprises a slotting mechanism (21), a slotting angle adjustment mechanism (22) and a first bidirectional adjustment module (23); the slotting mechanism (21) is used to slot on the surface of the disc brake pad (100); the slotting angle adjustment mechanism (22) is used to adjust the angle of the slotting mechanism (21) in a horizontal plane, thereby adjusting the slotting angle; the first bidirectional adjustment module (23) is used to adjust the position of the slotting angle adjustment mechanism (22) in a vertical direction and in a direction perpendicular to the length of the conveying device (1).

7. The disc brake pad combined grinding machine according to claim 1, characterized in that: The chamfering device (3) comprises a first chamfering mechanism (31) and a second chamfering mechanism (32) symmetrically arranged on both sides of the conveying device (1); the first chamfering mechanism (31) and the second chamfering mechanism (32) are respectively used for grinding and processing the chamfers at both ends of the disc brake pad (100).

8. The disc brake pad combined grinding machine according to claim 7, characterized in that: The first chamfering mechanism (31) and the second chamfering mechanism (32) both comprise a chamfering assembly (311) and a second bidirectional adjustment module (312); the chamfering assembly (311) is used for grinding and chamfering the end of the disc brake pad (100); and the second bidirectional adjustment module (312) is used for adjusting the position of the chamfering assembly (311) in a vertical direction and in a direction perpendicular to the length of the conveying device (1).

9. The disc brake pad combined grinding machine according to claim 1, characterized in that: A loading position is provided at one end of the conveying device (1), and a wedge-shaped notch (610) is provided at one end of the limiting plate (61) corresponding to the loading position, so that an eight-shaped area is formed between the two limiting plates (61) distributed on both sides of the loading position.

10. The disc brake pad combined grinding machine according to claim 1, characterized in that: It also includes a dust cleaning device (8) for cleaning dust on the surface of the disc brake pad (100) after grinding.

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