A friction plate off-line chamfering device

Abstract

The utility model relates to electric motor car technical field, concretely is a kind of friction plate offline chamfering equipment, including bracket, be equipped with operation table, drive mechanism and chamfering mechanism on the bracket, drive mechanism can drive operation table to move in X axis direction, chamfering mechanism is erected in the top of operation table, the chamfering mechanism includes fixed base, the first drive component of adjusting the speed of abrasive wheel, the second drive component of adjusting abrasive wheel displacement in Z axis direction and the third drive component of adjusting abrasive wheel displacement in Y axis direction are equipped on the fixed base, wherein, the second drive component and third drive component sliding fit type connection, first drive component and second drive component sliding fit type connection and can move with second drive component relative to third drive component;The chamfering equipment compact structure, adaptability and high degree of automation, not only solve the existing deficiency, and satisfy existing market demand, have certain practicality and economic benefits.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle technology, specifically a friction plate offline chamfering device. Background Technology

[0002] With the rise of the electric vehicle market and the increasing requirements for vehicle noise reduction, simply setting up sound-absorbing sheets is no longer enough to solve various noise problems. Currently, noise reduction is usually achieved by chamfering the friction pads (chamfering the friction pads refers to the specific treatment of the edges of the friction pads during the manufacturing process, usually by beveling or shaving to form a certain bevel or chamfer) to improve the driving experience.

[0003] Because our ComC grinding machine cannot perform large-angle chamfering, the friction plates need to be chamfered offline. Traditional offline chamfering equipment typically uses manual methods. In response, utility model patent CN216422005U discloses a device for chamfering friction plates. Its main improvement is that a screw drive device rotates the screw, causing the nut to move linearly on the screw. This, in turn, drives the movable plate and the friction plate clamp fixed thereon to reciprocate linearly. Therefore, by simply clamping and fixing the friction plate to be chamfered onto the clamp and adjusting the relative height between the grinding wheel and the friction plate, the chamfering operation can be automatically performed. Furthermore, by expanding the clamp, one clamp can hold multiple friction plates, distributing them along the clamp's travel direction, allowing multiple friction plates to be chamfered simultaneously in one pass. This chamfering process requires less manual intervention, has lower labor intensity, higher production efficiency, and improves production safety.

[0004] While the aforementioned existing technologies have addressed the shortcomings of traditional friction pad chamfering, they still possess certain limitations:

[0005] Although it is disclosed that the grinding wheel drive device can be height-adjusted on the fixed base and can accommodate chamfering of different grinding wheel sizes, according to the appendix... Figure 1-3 It is evident that the adjustment is still done manually, which reduces the adjustment accuracy and increases labor costs. Furthermore, with the development of the electric vehicle industry, the specifications of friction plates have become more diverse, and simply adjusting the displacement of the grinding wheel in the Z-axis direction cannot meet current needs, thus reducing the flexibility and versatility of the equipment.

[0006] Based on the above analysis, this application designs an offline chamfering device for friction plates. Utility Model Content

[0007] The purpose of this utility model is to provide a friction plate offline chamfering device. This device has a compact structure, a high degree of automation and adaptability, and solves at least one of the shortcomings of existing devices.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A friction plate offline chamfering device includes a frame, on which an operating table, a drive mechanism, and a chamfering mechanism are provided. The drive mechanism can drive the operating table to move in the X-axis direction. The chamfering mechanism is mounted above the operating table and includes a fixed base. The fixed base is provided with a first drive component for adjusting the rotational speed of the grinding wheel, a second drive component for adjusting the displacement of the grinding wheel in the Z-axis direction, and a third drive component for adjusting the displacement of the grinding wheel in the Y-axis direction. The second drive component and the third drive component are slidably connected, and the first drive component is slidably connected to the second drive component and can move relative to the third drive component with the second drive component.

[0010] As a preferred embodiment of this application, the third drive assembly includes a support beam A arranged along the width direction of the frame, and a horizontally arranged threaded screw A and a drive motor A are provided on the support beam A. The second drive assembly includes a support beam B, and a nut seat A is provided on the support beam B. The nut seat A is threadedly connected to the threaded screw A. At the same time, the support beam B is provided with a vertically arranged threaded screw B and a drive motor B. The first drive assembly includes a grinding wheel and a variable speed motor. The variable speed motor is provided with a nut seat B, and the nut seat B is threadedly connected to the threaded screw B.

[0011] As a preferred embodiment of this application: the operating table includes a friction plate fixing base plate, on which two sets of friction plate fixing tools are arranged in parallel. At the same time, the first driving component is provided in two sets, which are respectively located on both sides of the operating table and correspond to the positions of the friction plate fixing tools.

[0012] As a preferred embodiment of this application: the friction plate fixing tool is a limiting groove adapted to the shape of the friction plate, and the depth of the limiting groove is less than or equal to the thickness of the friction plate.

[0013] As a preferred embodiment of this application: the friction plate fixing base plate is a composite steel plate, which includes an upper limiting plate and a lower clearance plate. The limiting groove is disposed on the limiting plate, and the clearance plate is provided with an opening at the position corresponding to the limiting groove. The opening corresponds to the protrusion particles on the friction plate.

[0014] As a preferred embodiment of this application: the operating table further includes a guide rail, which is arranged along the length of the frame, and the bottom of the friction plate fixing base plate is provided with a slider, which slides with the guide rail.

[0015] As a preferred embodiment of this application: the drive mechanism is located at the bottom of the operating table, and includes a sprocket seat, a transmission chain and a drive motor C. The transmission chain is connected to the friction plate fixing base plate to drive the friction plate fixing base plate to move relative to the frame in the X-axis direction.

[0016] As a preferred embodiment of this application: the frame is provided with a brush cleaning mechanism, which is located downstream of the chamfering mechanism and includes brush bristles and a brush bristle fixing seat for cleaning the surface of the friction pad after chamfering.

[0017] As a preferred embodiment of this application: the brush cleaning mechanism further includes a height adjustment component, which includes a threaded screw C and a drive unit. Meanwhile, the brush bristle fixing seat is provided with a nut seat C, which is slidably engaged with the threaded screw C.

[0018] As a preferred embodiment of this application, the drive unit is a handwheel.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] This solution improves upon existing technology for an offline chamfering device for friction plates. Traditional chamfering mechanisms typically include a grinding wheel and a motor for adjusting its speed. Since friction plate chamfering is not a single form but encompasses various specifications, traditional chamfering mechanisms suffer from low flexibility and versatility. Therefore, this solution improves the chamfering mechanism. The improved chamfering mechanism includes a first drive assembly for adjusting the grinding wheel speed, a second drive assembly for adjusting the grinding wheel's displacement in the Z-axis direction, and a third drive assembly for adjusting the grinding wheel's displacement in the Y-axis direction. The first and second drive assemblies are slidably connected, and the second and third drive assemblies are... The sliding connection of the moving components allows for step-by-step or synchronous adjustment of the grinding wheel's displacement in the Z and Y axes via the second and third drive components. This adapts to the chamfering requirements of friction pads of different specifications, improving the flexibility and adaptability of the equipment. Furthermore, both the second and third drive components are controlled by drive motors, eliminating the need for human intervention, thus improving displacement adjustment accuracy and reducing labor costs and human error. Therefore, this chamfering equipment solution is compact, highly adaptable, and highly automated. It not only addresses existing shortcomings but also meets current market demands, demonstrating practicality and economic benefits. Attached Figure Description

[0021] Figure 1 This is a front view structural diagram of the friction plate chamfering device provided by this utility model.

[0022] Figure 2A top view of the friction plate chamfering device provided by this utility model.

[0023] Figure 3 This is a side view of the friction plate chamfering device provided by this utility model.

[0024] Attached Figure

[0025] 10 is the frame; 20 is the operating table; 21 is the friction plate fixing base plate; 22 is the limiting groove; 23 is the orifice; 24 is the guide rail; 30 is the drive mechanism; 31 is the sprocket seat; 32 is the transmission chain; 33 is the drive motor C; 41 is the first drive assembly; 411 is the grinding wheel; 412 is the variable speed motor; 413 is the nut seat B; 42 is the second drive assembly; 421 is the support beam B; 422 is the nut seat A; 423 is the threaded screw B; 424 is the drive motor B; 43 is the third drive assembly; 431 is the support beam A; 432 is the drive motor A; 433 is the threaded screw A; 50 is the brush cleaning mechanism; 51 is the brush bristles; 52 is the brush bristle fixing seat; 53 is the fixing frame; 54 is the threaded screw C; 55 is the drive unit; 56 is the nut seat C. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be emphasized that the following description is merely exemplary and not intended to limit the scope and application of the present invention.

[0027] This embodiment provides an offline chamfering device for friction plates, such as... Figure 1-3 As shown, the equipment includes a frame 10. It is understood that the height of the frame 10 can be designed according to actual needs, prioritizing ease of operation. The frame 10 is equipped with an operating table 20, a drive mechanism 30, and a chamfering mechanism. The operating table 20, serving as a chamfering platform, is positioned near the center of the frame 10. The drive mechanism 30 can drive the operating table 20 to move in the X-axis direction to chamfer multiple friction plates one by one. The chamfering mechanism is mounted above the operating table 20 and includes a fixed base. The fixed base is equipped with a first drive assembly 41 for adjusting the rotational speed of the grinding wheel 411 and for adjusting the displacement of the grinding wheel 411 in the Z-axis direction. The equipment includes a second drive assembly 42 and a third drive assembly 43 that adjusts the displacement of the grinding wheel 411 in the Y-axis direction. The second drive assembly 42 and the third drive assembly 43 are slidably connected. The first drive assembly 41 is slidably connected to the second drive assembly 42 and can move relative to the third drive assembly 43 with the second drive assembly 42. In use, the displacement of the grinding wheel 411 in the Z-axis and Y-axis directions can be adjusted stepwise or synchronously by the second drive assembly 42 and the third drive assembly 43 to adapt to the chamfering requirements of friction plates of different specifications, thereby improving the flexibility and adaptability of the equipment and meeting the chamfering requirements of multiple specifications of friction plates.

[0028] In this embodiment, the second driving component 42 and the third driving component 43 are slidably connected, and the first driving component 41 is slidably connected to the second driving component 42 and can move relative to the third driving component 43 with the second driving component 42. The specific structure is as follows:

[0029] The third drive assembly 43, the third drive assembly 43, and the third drive assembly 43 are arranged sequentially along the length of the frame 10. The third drive assembly 43 includes a support beam A431 arranged along the width of the frame 10. The support beam A431 has a horizontally arranged threaded rod A433 and a drive motor A432. The threaded rod A433 is connected to the drive shaft of the drive motor A432. The second drive assembly 42 includes a support beam B421. The support beam B421 has a nut seat A422, which is threadedly connected to the threaded rod A433. When the drive motor A432 drives the threaded rod A433 to rotate, the nut seat A422 will rotate relative to the threaded rod A433, thereby driving the support beam A431 to rotate. The support beam B421 moves in the Y-axis direction. At the same time, the support beam B421 is equipped with a vertically arranged threaded screw B423 and a drive motor B424. The threaded screw B423 is connected to the transmission shaft of the drive motor B424. The first drive assembly 41 includes a grinding wheel 411 and a variable speed motor 412. The transmission shaft of the variable speed motor 412 is connected to the grinding wheel 411 to drive the grinding wheel 411 to rotate. The variable speed motor 412 is equipped with a nut seat B413, which is threadedly connected to the threaded screw B423. When the drive motor B424 drives the threaded screw B423 to rotate, the nut seat B413 will rotate relative to the threaded screw B423, thereby driving the variable speed motor 412 and the grinding wheel 411 to move in the Z-axis direction.

[0030] In this embodiment, since the first drive assembly 41 is connected to the threaded screw B423 of the second drive assembly 42 through the nut seat B413, when the second drive assembly 42 moves relative to the third drive assembly 43, it will drive the first drive assembly 41 to move synchronously. That is, when the drive motor A432 drives the threaded screw A433 to rotate, the nut seat A422 will rotate relative to the threaded screw A433, thereby driving the support beam B421 and the first drive assembly 41 fixed thereon to move synchronously in the Y-axis direction.

[0031] Of course, the above is a preferred solution in this embodiment. When necessary and feasible, an electric cylinder can also be used as the drive unit 55 to replace the combination of motor and screw.

[0032] In this embodiment, the drive motor is preferably a Siemens stepper motor. Using this stepper motor as the power unit can realize the automatic control of the displacement of the grinding wheel 411 in the Y-axis and X-axis directions without human intervention. This not only improves the displacement adjustment accuracy, but also reduces labor costs and human error.

[0033] In practical use, the parameters of drive motor A432 and drive motor B424 can be determined according to the chamfering specifications of the friction plate and automatically adjusted by the control system without human intervention. This not only enables the adjustment of the height and width of the grinding wheel 411 relative to the operating table 20, but also enables the adjustment of the chamfering depth and width of the friction plate with high control precision.

[0034] As a preferred embodiment, the operating table 20 includes a friction plate fixing base plate 21, on which two sets of friction plate fixing tools are arranged in parallel. At the same time, the first driving assembly 41 is provided with two sets, that is, two sets of grinding wheels 411, which are respectively located on both sides of the operating table 20 and correspond to the positions of the friction plate fixing tools, so as to realize the chamfering of the friction plates placed in the two sets of parallel friction plate fixing tools. That is, multiple friction plates are processed simultaneously in one chamfering process, thereby improving production capacity.

[0035] The friction plate fixing tool is a limiting groove 22 adapted to the shape of the friction plate. The depth of the limiting groove 22 is less than or equal to the thickness of the friction plate. Compared with the traditional adsorption or snap-on type, the use of the limiting groove 22 for fixing simplifies the layout cost of the friction plate fixing tool and improves durability and the stability of clamping the friction plate.

[0036] The friction plate fixing base plate 21 is a composite steel plate formed by rolling or hot pressing. It includes an upper limiting plate and a lower clearance plate. The thickness of the limiting plate and the clearance plate is about 5mm. A limiting groove 22 is provided on the limiting plate. The clearance plate has an opening 23 at the position corresponding to the limiting groove 22. The opening 23 corresponds to the protrusions on the friction plate. That is, the limiting plate has a limiting groove 22 that communicates with it. The bottom of the limiting groove 22 is the plate surface of the clearance plate. Since some friction plates have protrusions, in order to avoid damage to the protrusions during the chamfering process, the opening 23 is provided on the clearance plate surface to protect the protrusions and improve the chamfering quality of the friction plate.

[0037] As a preferred embodiment, the operating table 20 also includes a guide rail 24, which is arranged along the length of the frame 10. Meanwhile, the bottom of the friction plate fixing base 21 is provided with a slider, which is slidably engaged with the guide rail 24. That is, under the action of external force, the friction plate fixing base can slide back and forth relative to the guide rail 24.

[0038] In this embodiment, the drive mechanism 30 provides the power for the reciprocating sliding of the friction plate fixing base. The drive mechanism 30 is located at the bottom of the operating table 20 and includes a sprocket seat 31, a transmission chain 32 and a drive motor C33. The transmission chain 32 is connected to the friction plate fixing base 21 and is used to drive the friction plate fixing base 21 to slide on the guide rail 24, thereby realizing the movement of the friction plate fixing base 21 relative to the frame 10 in the X-axis direction. It can be understood that the slider at the bottom of the friction plate fixing base 21 can be fixedly connected to the transmission chain 32. When the drive motor C33 drives the transmission chain 32 to rotate through the sprocket seat 31, it can drive the slider to move synchronously, thereby driving the friction plate fixing base 21 to reciprocate in the X-axis direction.

[0039] In this embodiment, the drive motor C33 is preferably a Siemens stepper motor, and the stepper motor and sprocket seat 31 are mounted at the end of the frame 10.

[0040] It should be noted that traditional chamfering equipment is equipped with a negative pressure suction mechanism to remove dust generated during the chamfering process, providing a clean operating environment for the chamfering process. However, the negative pressure suction mechanism can only remove excess dust on the operating table 20 and cannot remove dust adhering to the friction plate body or the burrs carried thereon. Therefore, this embodiment provides a brush cleaning mechanism 50 on the frame 10. This brush cleaning mechanism 50 is located at the downstream end of the chamfering mechanism and includes brush bristles 51 and brush bristle fixing seats 52 for cleaning the chamfering plate. Regarding the surface of the friction pad behind the corner, it is understood that the number of brush cleaning mechanisms 50 can be designed according to actual needs. For example, two sets can be set, each corresponding to the limiting groove 22 on the friction pad fixing base plate 21, so as to facilitate cleaning the friction pad in the two sets of limiting grooves 22 respectively. Alternatively, in order to save on setup costs and simplify the setup structure, only one set of brush cleaning mechanisms 50 can be set, and the bristles 51 can be set as long strips to ensure that the long strip bristles 51 can cover the two sets of limiting grooves 22. In this embodiment, the latter is preferred.

[0041] To adjust the height of the bristles 51 according to process requirements, this embodiment preferably includes a height adjustment component in the brush cleaning mechanism 50. This height adjustment component includes a threaded screw C54 and a drive unit 55. The bristle fixing seat 52 is provided with a nut seat C56, which is slidably engaged with the threaded screw C54. When the drive unit 55 drives the threaded screw C54 to rotate, the nut seat C56 will cause the bristle fixing seat 52 to move up and down relative to the threaded screw C54. In this embodiment, the drive unit 55 is preferably a handwheel; however, a motor can also be used if cost is not a concern. Preferably, the brush bristles 51 are used for cleaning only during the retraction process after the friction plate has finished grinding.

[0042] The specific operating principle of this embodiment includes:

[0043] First, based on the required chamfering specifications of the friction pads, the operating parameters of drive motors A432 and B424 are input into the system. Then, the Z-axis height and Y-axis displacement of the grinding wheel 411 relative to the upper limit groove 22 of the friction pad fixing base plate 21 are adjusted through the second drive component 42 and the third drive component 43. After the adjustment is completed, the friction pad products are placed into the limit grooves 22 of the operating table 20 manually or with a robotic arm. The button is pressed to start the drive motor C33 and the variable speed motor 412. The variable speed motor 412 drives the grinding wheel 411 to rotate at a certain speed to perform synchronous chamfering on the two sets of friction pads. The drive motor C33 periodically (the period is the chamfering time of a single friction pad) drives the transmission chain 32 to move the friction pad fixing base plate 21 to ensure that the grinding wheel 411 chamfers each friction pad one by one. At the same time, the brush 51 located at the downstream end of the chamfering mechanism cleans the chamfered friction pads.

[0044] It should be noted that the chamfering of the friction plate can be carried out by unidirectional or bidirectional grinding depending on the processing precision. In addition, the specific setting position of the brush cleaning mechanism 50 can be selected according to actual needs to ensure that the dust and burrs on the surface of the chamfered friction plate are removed. As a specific embodiment of this application, the friction plate is ground in one direction, and the brush cleaning mechanism 50 is set at the end of the operating table 20. After the friction plate is unidirectionally running to ensure that all friction plates are ground, the height of the brush cleaning mechanism 50 is adjusted to ensure that the brush bristles 51 are in contact with the friction plate fixing base plate 21. During the retraction of the friction plate fixing base plate 21, the brush bristles 51 automatically remove the burrs on the surface of the friction plate.

[0045] In summary, the chamfering device of this embodiment has a compact structure, high adaptability and automation, which not only solves the existing shortcomings, but also meets the current market demand, and has certain practicality and economic benefits.

[0046] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A friction plate offline chamfering device, comprising a frame, wherein the frame is provided with an operating table, a drive mechanism, and a chamfering mechanism, the drive mechanism being capable of driving the operating table to move in the X-axis direction, characterized in that: The chamfering mechanism is mounted above the operating table. The chamfering mechanism includes a fixed base, on which are provided a first drive component for adjusting the rotational speed of the grinding wheel, a second drive component for adjusting the displacement of the grinding wheel in the Z-axis direction, and a third drive component for adjusting the displacement of the grinding wheel in the Y-axis direction. The second drive component and the third drive component are slidably connected, and the first drive component is slidably connected to the second drive component and can move relative to the third drive component with the second drive component.

2. The friction plate offline chamfering device according to claim 1, characterized in that: The third drive assembly includes a support beam A arranged along the width direction of the frame. The support beam A is provided with a horizontally arranged threaded screw A and a drive motor A. The second drive assembly includes a support beam B. The support beam B is provided with a nut seat A, which is threadedly connected to the threaded screw A. At the same time, the support beam B is provided with a vertically arranged threaded screw B and a drive motor B. The first drive assembly includes a grinding wheel and a variable speed motor. The variable speed motor is provided with a nut seat B, which is threadedly connected to the threaded screw B.

3. The friction plate offline chamfering device according to claim 1, characterized in that: The operating table includes a friction plate fixing base plate, on which two sets of friction plate fixing tools are arranged in parallel. At the same time, the first driving component is provided in two sets, which are located on both sides of the operating table and correspond to the positions of the friction plate fixing tools.

4. The friction plate offline chamfering device according to claim 3, characterized in that: The friction plate fixing tool is a limiting groove adapted to the shape of the friction plate, and the depth of the limiting groove is less than or equal to the thickness of the friction plate.

5. The friction plate offline chamfering device according to claim 4, characterized in that: The friction plate fixing base plate is a composite steel plate, which includes an upper limiting plate and a lower clearance plate. The limiting groove is set on the limiting plate, and the clearance plate has an opening at the position corresponding to the limiting groove. The opening corresponds to the protrusion particles on the friction plate.

6. The friction plate offline chamfering device according to claim 3, characterized in that: The operating table also includes a guide rail, which is arranged along the length of the frame. Meanwhile, the bottom of the friction plate fixing base plate is provided with a slider, which slides with the guide rail.

7. The friction plate offline chamfering device according to claim 6, characterized in that: The drive mechanism is located at the bottom of the operating table and includes a sprocket seat, a transmission chain and a drive motor C. The transmission chain is connected to the friction plate fixing base plate and is used to drive the friction plate fixing base plate to move relative to the frame in the X-axis direction.

8. The friction plate offline chamfering device according to claim 1, characterized in that: The frame is equipped with a brush cleaning mechanism, which is located downstream of the chamfering mechanism and includes brush bristles and a brush bristle fixing seat for cleaning the surface of the friction plate after chamfering.

9. The friction plate offline chamfering device according to claim 8, characterized in that: The brush cleaning mechanism also includes a height adjustment component, which includes a threaded screw C and a drive unit. Meanwhile, the brush bristle fixing seat is provided with a nut seat C, which is slidably engaged with the threaded screw C.

10. The friction plate offline chamfering device according to claim 9, characterized in that: The drive unit is a handwheel.

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