Grinding device for removing electroplated layer of brake disc

Abstract

The utility model relates to a grinding device, in particular to a grinding device for removing an electroplated layer of a brake disc. Comprising a grinding wheel rotating disc, and a grinding mechanism is arranged on the grinding wheel rotating disc and used for grinding the brake disc. According to the utility model, the brush on the grinding device is replaced by the rubber grinding wheel, the rubber grinding wheel is high in abrasion resistance, and the abrasion of the rubber grinding wheel is slow when the brake disc is ground, so that the service life of the grinding device is prolonged, the cost is reduced, and the influence on the friction of the brake disc caused by more chips generated by the brush due to quick abrasion and accumulated chips is avoided; the rubber grinding wheel is flexibly connected to the grinding wheel turntable through the mounting screw, the positioning nut and the grinding wheel spring, and when the grinding wheel turntable rotates to grind the surface of the brake disc through the rubber grinding wheel, the rubber grinding wheel is driven to get close to the brake disc through elastic force generated by expansion of the grinding wheel spring, so that the bottom of the rubber grinding wheel is tightly attached to the surface of the brake disc. Therefore, the grinding effect of the rubber grinding wheel on the brake disc is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a grinding device, more particularly to a grinding device for removing electroplating layer of brake disc. BACKGROUND

[0002] The brake disc is a friction pair of disc brake, and in addition to having the strength and rigidity required as a component, it should also have a friction coefficient as high and stable as possible, and appropriate wear resistance, heat resistance, heat dissipation and heat capacity, etc. In the processing process, the electroplating layer on the surface of the brake disc is usually removed by a grinding device. The existing grinding device mostly uses a brush to grind the brake disc 5 with a positioning hole on the surface. However, the brush wears out quickly during the grinding process of the brake disc 5, which leads to low service life of the brush and the grinding device, increased cost, and uneven surface of the brush due to wear, which makes the surface of the brush not fit tightly with the surface of the brake disc 5, and the subsequent grinding effect of the brush on the brake disc is reduced. Moreover, the brush and the equipment are hard connected, and the parallelism of the brush and the workpiece needs to be adjusted, which requires high technical requirements and long adjustment time, resulting in low grinding efficiency of the electroplating layer of the brake disc 5. In view of this, the grinding device for removing electroplating layer of brake disc is proposed. SUMMARY

[0003] The utility model discloses a grinding device for removing electroplating layer of brake disc, which solves the problems in the background art.

[0004] To achieve the above-mentioned purpose, the utility model provides a grinding device for removing electroplating layer of brake disc, which comprises a grinding wheel turntable. A mounting shaft is coaxially fixedly arranged on the upper surface of the grinding wheel turntable. The upper end of the mounting shaft is coaxially and drivingly connected to the output shaft of an external motor through a shaft coupling. The motor output shaft drives the mounting shaft and the grinding wheel turntable to rotate. A grinding mechanism is arranged on the grinding wheel turntable. The grinding mechanism is used for grinding the brake disc. The grinding mechanism comprises a plurality of mounting screws arranged on the base. The two ends of each mounting screw extend to the outside of the base. A rubber wheel is fixedly arranged at the lower end of each mounting screw. A grinding wheel spring is coaxially arranged on the outside of each mounting screw. A base is arranged below the grinding wheel turntable. The brake disc is located between the base and the grinding wheel turntable. A supporting mechanism is arranged on the upper surface of the base. The supporting mechanism is used for supporting the brake disc.

[0005] As a further improvement of the technical solution, the supporting mechanism comprises a plurality of supporting springs fixedly arranged on the upper surface of the base in a circumferential array. A supporting ring is fixedly arranged at the upper end of each supporting spring. A rubber pad is fixedly arranged on the upper surface of the supporting ring. The lower surface of the brake disc is tightly attached to the upper surface of the rubber pad.

[0006] As a further improvement of the technical solution, the upper surface of the base is provided with a plurality of limiting holes arranged in a circumferential array, the lower surface of the supporting ring is fixedly provided with a plurality of limiting rods arranged in a circumferential array, the positions of the limiting rods correspond to those of the limiting holes, and the limiting rods are slidingly inserted into the limiting holes.

[0007] As a further improvement of the technical solution, the upper surface of the base is fixedly provided with a plurality of positioning pins arranged in a circumferential array, the positioning pins are used for fixing the position of the brake disc, the positions of the positioning pins correspond to those of the brake disc positioning holes, and the positioning pins are inserted into the brake disc positioning holes.

[0008] As a further improvement of the technical solution, the outer side of the mounting screw is threadedly connected with a positioning nut close to the top, the positioning nut is located above the grinding wheel turntable, and the positioning nut is used for preventing the mounting screw from falling off the grinding wheel turntable.

[0009] As a further improvement of the technical solution, the grinding wheel turntable is internally provided with a plurality of mounting holes arranged in a circumferential array, the mounting screw is located in the mounting hole, the mounting hole is internally provided in a shape of gradually increasing from top to bottom, and the two ends of the grinding wheel spring are respectively abutted against the upper surface of the rubber grinding wheel and the inner wall of the mounting hole.

[0010] Compared with the prior art, the brake disc electroplating layer removing grinding device has the following beneficial effects:

[0011] 1. The brake disc electroplating layer removing grinding device, by means of the mounting screw, the positioning nut and the grinding wheel spring, the rubber grinding wheel is mounted on the grinding wheel turntable, so that the grinding wheel turntable drives the rubber grinding wheel to rotate when the grinding wheel turntable rotates, the rotating rubber grinding wheel grinds the brake disc, the rubber grinding wheel has high wear resistance, the rubber grinding wheel is slowly worn during grinding of the brake disc, the service life of the grinding device is prolonged, the cost is reduced, the brush is not worn too fast, and the accumulation of the generated debris does not affect the friction of the brake disc.

[0012] 2. The brake disc electroplating layer removing grinding device, during grinding of the brake disc by the grinding device, the grinding wheel turntable drives the rubber grinding wheel to descend and approach the brake disc, the rubber grinding wheel bottom is gradually pressed against the brake disc, the grinding wheel spring is relaxed, the rubber grinding wheel is driven to approach the brake disc by the elastic force generated by the relaxed grinding wheel spring when the grinding wheel turntable rotates and grinds the surface of the brake disc, the rubber grinding wheel bottom is tightly attached to the surface of the brake disc, the grinding effect of the rubber grinding wheel on the brake disc is improved, the rubber grinding wheel is not easily separated from the surface of the brake disc due to friction, and the grinding effect of the rubber grinding wheel on the brake disc is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a three-dimensional structure schematic view of the utility model.

[0014] Figure 2 It is one of sectional three-dimensional structure schematic view of the utility model;

[0015] Figure 3 It is two of sectional three-dimensional structure schematic view of the utility model;

[0016] Figure 4 It is three-dimensional structure schematic view of base in the utility model;

[0017] Figure 5 It is three-dimensional structure schematic view of support mechanism in the utility model;

[0018] Figure 6 It is three-dimensional structure schematic view of grinding wheel carousel in the utility model.

[0019] The meaning of each reference numeral in the drawing is as follows:

[0020] 1, grinding wheel carousel; 11, mounting shaft;

[0021] 2, grinding mechanism; 21, mounting screw; 22, rubber grinding wheel; 23, positioning nut; 24, grinding wheel spring;

[0022] 3, base; 31, positioning pin; 32, limiting hole;

[0023] 4, support mechanism; 41, support spring; 42, support ring; 43, limiting rod;

[0024] 5, brake disc. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] Embodiment 1

[0027] Please refer to Figures 1-6The purpose of the embodiment is to provide a grinding device for removing the electroplated layer of brake disc, which comprises a grinding wheel rotating disc 1, a mounting shaft 11 coaxially arranged in the middle of the upper surface of the grinding wheel rotating disc 1, the upper end of the mounting shaft 11 is coaxially and drivingly connected with the output shaft of an external motor through a shaft coupling, the external motor is fixedly connected with the piston end of a hydraulic cylinder, the piston end of the hydraulic cylinder drives the external motor and the grinding wheel rotating disc 1 to move up and down when the hydraulic cylinder is stretched and retracted, the rotating motor output shaft drives the mounting shaft 11 and the grinding wheel rotating disc 1 to rotate, and the traditional grinding wheel is arranged on the grinding device through a hard connection mode, the use of the grinding wheel causes wear, which leads to the decline of the fitting effect of the grinding wheel and the surface of the object, and influences the grinding effect of the grinding wheel on the object, in order to make the grinding wheel closely fit the surface of the object, a grinding mechanism 2 is arranged on the grinding wheel rotating disc 1, the grinding mechanism 2 is used for grinding the brake disc 5, the grinding mechanism 2 comprises a plurality of mounting screws 21 arranged on the base 3, the two ends of the mounting screw 21 are extended to the outside of the base 3, the lower end of the mounting screw 21 is fixedly provided with a rubber wheel 22, the outer side of the mounting screw 21 is coaxially sleeved with a grinding wheel spring 24, a plurality of mounting holes arranged in a circumferential array are formed in the grinding wheel rotating disc 1, the mounting screw 21 is located in the inside of the mounting hole, the inside of the mounting hole is arranged in a shape of gradually increasing from small to large, the two ends of the grinding wheel spring 24 are respectively abutted with the upper surface of the rubber wheel 22 and the inner wall of the mounting hole, a positioning nut 23 is threadedly connected with the position close to the top of the outer side of the mounting screw 21, the positioning nut 23 is located above the grinding wheel rotating disc 1, and the positioning nut 23 is used for preventing the mounting screw 21 from being separated from the grinding wheel rotating disc 1, a worker holds the rubber wheel 22, first, the grinding wheel spring 24 is sleeved on the outer side of the mounting screw 21, the lower end of the grinding wheel spring 24 is abutted on the upper surface of the rubber wheel 22, then the mounting screw 21 and the grinding wheel spring 24 are inserted into the inside of the mounting hole, the mounting screw 21 is continuously pushed, the upper end of the mounting screw 21 penetrates through the mounting hole and is extended to the outside of the grinding wheel rotating disc 1, at this time, the upper end of the grinding wheel spring 24 is abutted on the inner wall of the mounting hole, finally, the positioning nut 23 is sleeved on the outer side of the mounting screw 21, the positioning nut 23 is located above the grinding wheel rotating disc 1 by means of the tool, the rubber wheel 22 is close to the grinding wheel rotating disc 1 by means of the positioning nut 23 pulling the mounting screw 21, at this time, the grinding wheel spring 24 is deformed under pressure, the rubber wheel 22 is pushed away from the grinding wheel rotating disc 1 by the elastic force of the grinding wheel spring 24, so as to fix the position of the rubber wheel 22, the diameters of the rubber wheel 22 and the positioning nut 23 located at the other end of the mounting screw 21 are greater than the diameter of the mounting hole, so as to block the mounting screw 21 from moving out of the inside of the mounting hole, and the separation of the mounting screw 21 and the rubber wheel 22 from the grinding wheel rotating disc 1 is avoided, when the rubber wheel 22 is used, the rubber wheel 22 contacts the brake disc 5 as the grinding wheel rotating disc 1 approaches the brake disc 5, and the brake disc 5 pushes the rubber wheel 22 to approach the grinding wheel rotating disc 1, at this time, the grinding wheel spring 24 pushes the rubber wheel 22 under pressure, so that the rubber wheel 22 is in close contact with the surface of the object when rotating,The rubber grinding wheel 22 is prevented from separating from the article during grinding, thereby improving the grinding effect of the rubber grinding wheel 22 on the article.

[0028] Since the rubber grinding wheel 22 needs to closely adhere to the article during grinding, there is a large friction force between the rubber grinding wheel 22 and the article, so the article is easy to rotate with the rubber grinding wheel 22 during rotation, which causes the friction force between the rubber grinding wheel 22 and the article to be insufficient, resulting in a decrease in the grinding effect of the rubber grinding wheel 22 on the article. In order to prevent the article from rotating with the rubber grinding wheel 22 and improve the grinding effect of the rubber grinding wheel 22 on the article, a base 3 is arranged below the grinding wheel disc 1, a brake disc 5 is arranged between the base 3 and the grinding wheel disc 1, a plurality of positioning pins 31 are fixedly arranged on the upper surface of the base 3 in a circumferential array, the positioning pins 31 are used to fix the position of the brake disc 5, the positions of the positioning pins 31 correspond to the positions of the positioning holes of the brake disc 5, the positioning pins 31 are inserted into the inside of the positioning holes of the brake disc 5, the brake disc 5 is placed above the base 3, the positions of the positioning holes of the brake disc 5 correspond to the positions of the positioning pins 31, after the brake disc 5 is placed on the base 3, the positioning pins 31 are inserted into the inside of the positioning holes, the positions of the brake disc 5 are limited by the positioning holes and the positioning pins 31, the brake disc 5 is prevented from rotating with the rubber grinding wheel 22 during grinding, and sufficient friction is generated between the rubber grinding wheel 22 and the brake disc 5, thereby improving the grinding effect of the rubber grinding wheel 22 on the brake disc 5.

[0029] When the brake disc 5 is placed on the upper surface of the base 3, the bottom of the brake disc 5 is attached to the upper surface of the base 3, so that the gap between the brake disc 5 and the base 3 is small, and it is difficult for the worker to take the brake disc 5 off the base 3, thereby affecting the subsequent grinding of the brake disc 5. In order to facilitate the worker to take the ground brake disc 5, the support mechanism 4 is arranged on the upper surface of the base 3, and the support mechanism 4 is used to support the brake disc 5. The support mechanism 4 includes a plurality of support springs 41 arranged in a circumferential array and fixed on the upper surface of the base 3. The upper end of the support spring 41 is fixedly provided with a support ring 42, and the upper surface of the support ring 42 is fixedly provided with a rubber pad. The brake disc 5 is placed on the support ring 42, and the lower surface of the brake disc 5 is attached to the upper surface of the rubber pad on the support ring 42. With the descending of the rubber grinding wheel 22, the brake disc 5 is extruded, so that the grinding wheel spring 24 is compressed. At this time, the bottom of the support ring 42 is closely attached to the upper surface of the base 3. When the brake disc 5 is ground, the rubber grinding wheel 22 is separated from the brake disc 5, and the support spring 41 in the compressed state expands to drive the support ring 42 and the brake disc 5 to move away from the base 3, so that the brake disc 5 is lifted by the support spring 41 and the support ring 42, and a large gap is generated between the brake disc 5 and the base 3, facilitating the worker to take the brake disc 5 off the base 3. In the lifting process of the support ring 42, if the brake disc 5 and the support ring 42 are unevenly stressed, the inclination phenomenon will occur, which will cause the adhesion effect of the brake disc 5 and the rubber grinding wheel 22 to decrease. In order to improve the stability of the brake disc 5 and the support ring 42 in the lifting process, a plurality of limiting holes 32 arranged in a circumferential array are arranged on the upper surface of the base 3, and a plurality of limiting rods 43 arranged in a circumferential array are fixedly arranged on the lower surface of the support ring 42. The positions of the limiting rods 43 correspond to the positions of the limiting holes 32, and the limiting rods 43 are slidingly inserted into the limiting holes 32. In the lifting process of the support ring 42, the limiting rods 43 slide in the limiting holes 32. The lifting path of the support ring 42 is limited by the limiting rods 43 and the limiting holes 32, so that the support ring 42 lifts along the axial direction of the limiting rods 43, thereby improving the stability of the support ring 42 in the lifting process.

[0030] In summary, the working principle of the present scheme is as follows: the rubber grinding wheel 22 is installed on the grinding wheel turntable 1 through the installation of the screw rod 21, the positioning nut 23 and the grinding wheel spring 24; when grinding the brake disc 5 is needed, the brake disc 5 is placed on the rubber pad of the supporting ring 42, at this time, the positioning pin 31 is inserted into the positioning hole, so that the grinding wheel turntable 1 is lowered to drive the rubber grinding wheel 22 to move towards the brake disc 5, with the rubber grinding wheel 22 being lowered to contact the brake disc 5, the brake disc 5 and the supporting ring 42 are driven to move towards the base 3, and the supporting spring 41 is compressed during the lowering of the supporting ring 42; at this time, the rubber grinding wheel 22 is moved towards the grinding wheel turntable 1 under the reaction force of the supporting spring 41 and the brake disc 5 to compress the grinding wheel spring 24, the external motor is operated to drive the grinding wheel turntable 1 and the rubber grinding wheel 22 to rotate to polish the brake disc 5; during the polishing of the brake disc 5, the relaxed grinding wheel spring 24 drives the rubber grinding wheel 22 to move towards the brake disc 5, so that the rubber grinding wheel 22 is tightly attached to the surface of the brake disc 5, avoiding separation of the rubber grinding wheel 22 from the object during grinding, and improving the grinding effect of the rubber grinding wheel 22 on the object; when the polishing of the brake disc 5 is completed, the grinding wheel turntable 1 is raised to drive the rubber grinding wheel 22 to move away from the base 3, so that the rubber grinding wheel 22 is separated from the brake disc 5; at this time, the relaxed supporting spring 41 drives the supporting ring 42 and the brake disc 5 to move away from the base 3, so that a large gap is generated between the brake disc 5 and the base 3, facilitating the subsequent work personnel to take the brake disc 5 from the base 3.

[0031] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application and do not limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A grinding device for removing electroplating from a brake disc, comprising a grinding wheel turntable (1), wherein a mounting shaft (11) is coaxially fixedly provided in the middle of the upper surface of the grinding wheel turntable (1), the upper end of the mounting shaft (11) is coaxially connected to an output shaft of an external motor through a coupling, and the rotating output shaft of the motor drives the mounting shaft (11) and the grinding wheel turntable (1) to rotate, characterized in that: The grinding wheel turntable (1) is provided with a grinding mechanism (2), and the grinding mechanism (2) is used to grind the brake disc (5). The grinding mechanism (2) comprises a plurality of mounting screws (21) arranged on a base (3), both ends of the mounting screws (21) extend to the outside of the base (3), a rubber grinding wheel (22) is fixedly provided at the lower end of the mounting screw (21), and a grinding wheel spring (24) is coaxially sleeved on the outside of the mounting screw (21). A base (3) is provided below the grinding wheel turntable (1), and the brake disc (5) is located between the base (3) and the grinding wheel turntable (1). A support mechanism (4) is provided on the upper surface of the base (3), and the support mechanism (4) is used to support the brake disc (5).

2. The grinding device for removing electroplating layer of a brake disc according to claim 1, characterized in that: The support mechanism (4) comprises a plurality of support springs (41) fixedly arranged on the upper surface of the base (3) and distributed in a circumferential array, a support ring (42) fixedly arranged on the upper end of the support spring (41), a rubber pad fixedly arranged on the upper surface of the support ring (42), and the lower surface of the brake disc (5) is tightly fitted with the upper surface of the rubber pad.

3. The grinding device for removing electroplating layer of a brake disc according to claim 2, characterized in that: The upper surface of the base (3) is provided with a plurality of limiting holes (32) distributed in a circumferential array, and the lower surface of the support ring (42) is fixedly provided with a plurality of limiting rods (43) distributed in a circumferential array, wherein the positions of the limiting rods (43) correspond to the positions of the limiting holes (32), and the limiting rods (43) are slidably inserted into the interior of the limiting holes (32).

4. The grinding device for removing electroplating layer from a brake disc according to claim 1, characterized in that: A plurality of positioning pins (31) distributed in a circumferential array are fixedly provided on the upper surface of the base (3), and the positioning pins (31) are used to fix the position of the brake disc (5). The positioning pins (31) correspond to the positions of the positioning holes of the brake disc (5), and the positioning pins (31) are inserted into the interior of the positioning holes of the brake disc (5).

5. The grinding device for removing electroplating layer of a brake disc according to claim 1, characterized in that: A positioning nut (23) is threadedly connected to a position near the top of the outer side of the mounting screw (21), and the positioning nut (23) is located above the grinding wheel turntable (1). The positioning nut (23) is used to prevent the mounting screw (21) from falling off from the grinding wheel turntable (1).

6. The grinding device for removing electroplating layer of a brake disc according to claim 1, characterized in that: The grinding wheel turntable (1) is provided with a plurality of mounting holes distributed in a circumferential array. The mounting screw (21) is located inside the mounting hole. The mounting hole is arranged in a shape that is small at the top and large at the bottom. The two ends of the grinding wheel spring (24) are respectively in contact with the upper surface of the rubber grinding wheel (22) and the inner wall of the mounting hole.

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