A double-sided grinding and deburring device for brake discs

Abstract

The present invention relates to the field of grinding and polishing, and specifically to a double-sided grinding and deburring device for a brake disc, comprising a lifting system and a rotating spindle system capable of horizontal movement, wherein a disc carrier is provided on the lifting output end of the lifting system, and an internal positioning fixture assembly is provided on the rotating output end of the rotating spindle system. A double-sided polishing assembly and a translation guide rail assembly are also provided on the side of the disc carrier, and the double-sided polishing assembly includes two roller polishing brushes that can approach each other, and the double-sided polishing assembly is connected to the disc carrier by a long connecting rod. The present invention uses a roller polishing brush to synchronously grind and polish both sides of the brake disc, which greatly improves the processing efficiency compared with the traditional method; the present invention avoids the situation where the polishing assembly collides with the fixture assembly through purely mechanical structural correlation, and the present invention greatly improves the clamping efficiency of the brake disc through the internal support positioning fixture.

Description

Technical Field

[0001] The invention relates to the field of grinding and polishing, and in particular to a double-sided grinding and deburring device for a brake disc. Background Art

[0002] The quality and performance of brake discs are crucial to vehicle braking safety. During the brake disc manufacturing process, such as casting, forging, or machining (such as turning and drilling), burrs form on the surface and edges. If these burrs are not removed, they can adversely affect the installation and use of the brake disc.

[0003] From an installation perspective, a burred brake disc may not be properly installed in the vehicle's braking system. The burrs will affect the fit of the brake disc to components such as the wheel hub, resulting in an uneven installation and potentially causing vibration and noise during driving.

[0004] Burrs can affect the performance of brake discs by affecting the contact between the brake pad and the disc. During braking, uneven contact can lead to reduced braking effectiveness, uneven braking, and increased braking distances, among other safety hazards. Furthermore, burrs can accelerate brake pad wear, shortening its service life and increasing vehicle operating costs.

[0005] Currently, mechanical grinding is one of the most common methods for deburring. Using a dedicated grinder, the brake disc is mounted on a workbench and the surface and edges of the disc are polished with a high-speed rotating grinding wheel. Traditional grinding methods can only polish one side of the disc at a time, requiring a second clamping step to polish the other side. Furthermore, the fixtures used for traditional grinding are mostly compatible with conventional brake discs (i.e., the mounting aperture is vehicle-specific, with the disc body and joint integrally formed). However, some modified brake discs have separate disc bodies and joints, requiring the disc surface to be polished before the dedicated aluminum alloy joint is installed. For these types of brake discs, the fixtures used on traditional grinders are not universally applicable. Summary of the Invention

[0006] Based on this, it is necessary to provide a double-sided grinding and deburring device for a brake disc to address the existing technical problems, so as to perform efficient deburring and grinding operations on the double disc surfaces of the brake disc.

[0007] In order to solve the problems of the prior art, the technical solution adopted by the present invention is:

[0008] A double-sided grinding and deburring device for a brake disc comprises a lifting system and a rotating spindle system capable of horizontal movement, a disc carrier being provided on the lifting output end of the lifting system, an internal positioning fixture assembly being provided on the rotating output end of the rotating spindle system, a double-sided polishing assembly and a translation guide rail assembly being provided on the side of the disc carrier, the double-sided polishing assembly being movably provided on the translation guide rail assembly, the double-sided polishing assembly comprising two roller polishing brushes that can approach each other, the two roller polishing brushes being respectively located on both sides of the brake disc, the translation guide rail assembly being fixed in a horizontal state and being perpendicular to the rotating spindle system, the double-sided polishing assembly being connected to the disc carrier by a long connecting rod.

[0009] Furthermore, the disc carrier includes a rectangular base, two supporting rollers arranged on the inner side of the rectangular base, two guide columns arranged on the inner side of the rectangular base, and two pairs of centering spring plates arranged at both ends of the rectangular base. The rectangular base is formed with a receiving groove extending downward from the top, and both side walls of the rectangular base are provided with V-shaped avoidance notches of the same shape and extending downward. The two supporting rollers are respectively axially connected to the bottom of the two ends of the receiving groove, and a rotating mechanism for driving one of the supporting rollers to rotate is also provided on the rectangular base. The two guide columns The guide columns are respectively fixedly arranged on the upper halves of the two ends of the accommodating slot, and the upper end of each guide column extends upward. The inner sides of the upper ends of the two guide columns are formed with beveled portions for guiding the brake disc to slide down. The two pairs of centering springs are respectively arranged on the top of the two ends of the rectangular base, and the number of each pair of centering springs is two. The lower end of each centering spring is fixedly connected to the inner wall of the accommodating slot. The upper half of each centering spring is an arc-shaped plate structure, and the arc tops of each pair of centering springs are arranged facing each other. The two guide columns are respectively arranged in the middle position of the two pairs of centering springs.

[0010] Furthermore, the rotating mechanism includes a rotating motor, a synchronous belt and two synchronous wheels connected by a synchronous belt transmission. The rotating motor is fixedly arranged at one end of the rectangular base, wherein the central axis of a support roller close to the rotating motor extends to the outside of the rectangular base, and the two synchronous wheels are respectively arranged on the output shaft of the rotating motor and the extended end of the corresponding support roller. A number of bearings for the support roller shaft connection are embedded on both side walls of the rectangular base.

[0011] Furthermore, the inner positioning fixture assembly includes a hollow cylindrical tube, a threaded collar movably arranged on the inner side of the hollow cylindrical tube, a long screw rod coaxially arranged on the inner side of the hollow cylindrical tube, a driving motor fixedly arranged at one end of the hollow cylindrical tube, a plurality of X-shaped connecting rods evenly distributed on the outer side of the hollow cylindrical tube, and a plurality of positioning rods respectively arranged on the outer sides of the X-shaped connecting rods. The wall of the hollow cylindrical tube is formed with a plurality of strip-shaped through holes evenly distributed along the circumferential direction, and a hinge shaft is fixedly arranged at one end of each of the strip-shaped through holes. The outer wall of the threaded collar is Several first hinge seats are formed on it, which are evenly distributed along the circumferential direction. Each first hinge seat is slidably embedded in the corresponding strip-shaped through hole. The two ends of each X-shaped connecting rod close to the hollow cylindrical tube are respectively connected to the corresponding hinge shaft and the first hinge seat. A second hinge seat is provided at one end of the inner side of each positioning rod, and a strip-shaped hole slide rail is formed at the other end. The two ends of the X-shaped connecting rod away from the hollow cylindrical tube are respectively connected to the second hinge seat and the strip-shaped hole slide rail. The driving motor is fixedly connected to one end of the long lead rod, and the long lead rod is threadedly connected to the threaded collar.

[0012] Furthermore, the outer side wall of the positioning rod is a curved structure, and an inner support slider is nested in the outer side sliding of the positioning rod. The two side walls of the positioning rod are formed with strip-shaped sliding grooves for the inner support slider to slide and engage with, and a locking bolt is screwed on the inner support slider to press against the outer wall of the positioning rod.

[0013] Furthermore, an umbrella-shaped cone head is fixedly connected to one end of the hollow cylindrical tube facing the brake pad, and both ends of the hollow cylindrical tube are fixedly connected to bearing end covers for axially connecting the two ends of the long screw rod, and the outer side of one of the bearing end covers is formed with a connecting column for the umbrella-shaped cone head to be sleeved, and the center of the umbrella-shaped cone head is formed with a bolt hole for being fixed to the connecting column, and the outer side of the other bearing end cover is fixedly connected to a connecting handle for connecting to the rotating spindle system, and the connecting handle is arranged coaxially with the hollow cylindrical tube.

[0014] Furthermore, the double-sided polishing assembly also includes an opposing jaw assembly and two groups of grinding motors respectively arranged at the two claw ends of the opposing jaw assembly. The output shaft of each grinding motor is connected to the corresponding roller polishing brush. The opposing jaw assembly is connected to the translation guide rail assembly through a slide. The upper end of the long connecting rod is connected to the bottom of the slide, and the lower end is connected to one side of the disc carrier.

[0015] Furthermore, the translation guide rail assembly includes a rectangular slide rail structure composed of two guide rods and two fasteners, and first linear bearings are respectively embedded at both ends of the slide seat, and the two first linear bearings are respectively slidably mounted on the two guide rods.

[0016] Furthermore, a sliding beam is slidably provided on the two guide rods, and second linear bearings matching the guide rods are embedded at both ends of the sliding beam. An adjusting screw is connected to the middle axis of the sliding beam, and a flange nut for matching the adjusting screw is provided on the sliding seat.

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

[0018] First, the present invention uses a roller-type polishing brush to simultaneously grind and polish both sides of the brake disc, which greatly improves the processing efficiency compared to traditional methods;

[0019] Secondly, the polishing assembly of the present invention and the carrier have a purely mechanical structural correlation, which ensures the synchronous correlation of the movement of the two and avoids the occurrence of the polishing assembly colliding with the fixture assembly;

[0020] Thirdly, the present invention realizes quick clamping of the disc body of the split brake disc through the internal support type positioning fixture, which greatly improves the clamping efficiency of the brake disc. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the working state of the present invention Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of the working state of the present invention Figure 2 ;

[0023] Figure 3 yes Figure 2 Schematic diagram of the floor plan;

[0024] Figure 4 is a schematic diagram of the three-dimensional structure of the disk carrier of the present invention;

[0025] Figure 5 yes Figure 2 Schematic top view of

[0026] Figure 6 This is a schematic diagram of the three-dimensional structure of the internal positioning fixture assembly of the present invention clamping the brake disc;

[0027] Figure 7 It is a schematic diagram of the three-dimensional structure of the inner positioning fixture assembly of the present invention;

[0028] Figure 8 is a schematic planar cross-sectional view of the inner positioning fixture assembly of the present invention;

[0029] Figure 9 Schematic diagram of the relationship between the polishing positions of the double-sided polishing assembly and the brake disc of the present invention;

[0030] Figure 10 yes Figure 7 A schematic diagram of the structure enlargement at point A;

[0031] The numbers in the figure are: 1-disc carrier; 2-internal positioning fixture assembly; 3-double-sided polishing assembly; 4-translational guide rail assembly; 5-roller polishing brush; 6-brake disc; 7-arc-shaped opening; 8-connecting ear; 9-long connecting rod; 10-rectangular base; 11-support roller; 12-guide column; 13-centering spring; 14-accommodating through groove; 15-V-shaped avoidance notch; 16-bevel portion; 17-rotating motor; 18-bearing; 19-hollow cylindrical tube; 20-threaded collar; 21-long screw rod; 22-drive motor; 23-X-shaped connecting rod; 24 - positioning rod; 25 - strip-shaped through hole; 26 - hinge shaft; 27 - first hinge seat; 28 - second hinge seat; 29 - strip-shaped hole slide rail; 30 - inner support slider; 31 - strip-shaped slide groove; 32 - locking bolt; 33 - umbrella-shaped cone head; 34 - bearing end cover; 35 - connecting column; 36 - bolt hole; 37 - connecting handle; 38 - opposing clamping jaw assembly; 39 - grinding motor; 40 - slide seat; 41 - guide rod; 42 - fastener; 43 - first linear bearing; 44 - sliding beam; 45 - second linear bearing; 46 - adjusting screw; 47 - flange nut. DETAILED DESCRIPTION

[0032] In order to further understand the features, technical means, specific objectives and functions achieved by the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] Reference Figures 1 to 10 As shown, a double-sided grinding and deburring device for a brake disc comprises a lifting system and a rotating spindle system capable of moving horizontally, and is characterized in that a disc carrier 1 is provided on the lifting output end of the lifting system, and an internal positioning fixture assembly 2 is provided on the rotating output end of the rotating spindle system, and a double-sided polishing assembly 3 and a translation guide rail assembly 4 are also provided on the side of the disc carrier 1, and the double-sided polishing assembly 3 is movably arranged on the translation guide rail assembly 4, and the double-sided polishing assembly 3 includes two roller polishing brushes 5 that can approach each other, and the two roller polishing brushes 5 are respectively located on both sides of the brake disc 6, and the translation guide rail assembly 4 is fixed in a horizontal state and is perpendicular to the rotating spindle system, and the double-sided polishing assembly 3 is connected to the disc carrier 1 by a long connecting rod 9.

[0034] The present invention can place the brake disc 6 into the disc carrier 1 by mechanical loading or manual loading, and then the rotating spindle system drives the inner positioning fixture assembly 2 to move toward the disc carrier 1 until the inner positioning fixture assembly 2 penetrates into the center hole of the brake disc 6, thereby starting to move to position and tighten the brake disc 6, and then the lifting system drives the disc carrier 1 to descend, so that the brake disc 6 and the disc carrier 1 are separated. During the descending process of the disc carrier 1, the double-sided polishing assembly 3 is pulled to move by the long connecting rod 9, and the pulled double-sided polishing assembly 3 moves horizontally toward the brake disc 6 on the translation guide rail assembly 4 and approaches until the two roller polishing brushes 5 come to the two sides of the brake disc 6. Then the double-sided polishing assembly 3 drives the two roller polishing brushes 5 to approach each other until they are close to the disc surface of the brake disc 6, and then the brake disc 6 is driven to rotate at high speed by the spindle rotation system, and the roller polishing brush 5 rotating at the same high speed is cooperated to achieve the effect of synchronous polishing of both sides of the brake disc 6. Figure 1 and Figure 2 In the figure, the vertical arrow indicates the movement direction of the disc carrier 1 driven by the lifting system, and the horizontal arrow indicates the movement direction of the inner positioning fixture assembly 2 driven by the rotating spindle system.

[0035] In order to facilitate the brake disc 6 to enter the disc carrier 1 more easily, the following features are specifically set:

[0036] The disc carrier 1 includes a rectangular base 10, two supporting rollers 11 arranged on the inner side of the rectangular base 10, two guiding columns 12 arranged on the inner side of the rectangular base 10, and two pairs of centering spring plates 13 arranged at both ends of the rectangular base 10. The rectangular base 10 is formed with a receiving groove 14 extending downward from the top, and both side walls of the rectangular base 10 are provided with V-shaped avoidance notches 15 of the same shape and extending downward. The two supporting rollers 11 are respectively axially connected to the bottom of the two ends of the receiving groove 14. The rectangular base 10 is also provided with a rotating mechanism for driving one of the supporting rollers 11 to rotate. The two guiding columns The columns 12 are respectively fixedly arranged on the upper halves of both ends of the accommodating groove 14, and the upper end of each of the guide columns 12 extends upward. The inner sides of the upper ends of the two guide columns 12 are formed with beveled portions 16 for guiding the brake disc 6 to slide down. The two pairs of centering spring pieces 13 are respectively arranged on the top of both ends of the rectangular base 10, and the number of each pair of centering spring pieces 13 is two. The lower end of each centering spring piece 13 is fixedly connected to the inner wall of the accommodating groove 14. The upper half of each centering spring piece 13 is an arc-shaped plate structure, and the arc tops of each pair of centering spring pieces 13 are arranged facing each other. The two guide columns 12 are respectively arranged in the middle position of the two pairs of centering spring pieces 13.

[0037] When the brake disc 6 enters the accommodating groove 14 of the rectangular base 10, the outer edge of the brake disc 6 is blocked and limited by the guide columns 12 on both sides. The distance between the two guide columns 12 is greater than the diameter of the brake disc 6 to facilitate the smooth entry of the brake disc 6. The beveled portion 16 at the top of the guide column 12 makes it easier for the brake disc in contact with it to smoothly enter between the two. In the process of the brake disc 6 downward entering the rectangular base 10, it is elastically resisted and limited by the two pairs of centering spring sheets 13. In the process of the brake disc 6 entering, the centering spring sheets 13 always keep in contact with its disc surface until the bottom of the brake disc 6 is finally mounted on the two support rollers 11. The outer layer of the support rollers 11 is a non-slip layer, so that the rotating mechanism can smoothly drive the brake disc 6 to rotate through the rotation of the support rollers 11. In the process of the brake disc 6 rotating, the elastic contact of the two pairs of centering spring sheets 13 ensures that the brake disc 6 is located in the middle position of the rectangular base 10 after rotating several circles.

[0038] In order to realize the rotation of the support roller 11 to drive the rotation of the brake disc 6, so as to facilitate the adjustment of the position of the brake disc 6 so that the subsequent internal positioning fixture assembly 2 can smoothly clamp the brake disc 6, the following features are specifically set:

[0039] The rotating mechanism includes a rotating motor 17, a synchronous belt and two synchronous pulleys connected by a synchronous belt transmission. The rotating motor 17 is fixedly arranged at one end of the rectangular base 10, wherein the central axis of a support roller 11 close to the rotating motor 17 extends to the outside of the rectangular base 10, and the two synchronous pulleys are respectively arranged on the output shaft of the rotating motor 17 and the extended end of the corresponding support roller 11. A number of bearings 18 for the support roller 11 to be connected are embedded on both side walls of the rectangular base 10.

[0040] The rotating motor 17 cooperates with the synchronous wheel and the synchronous belt to drive the support roller 11 connected to it to rotate, and the rotation of the support roller 11 drives the brake disc 6 mounted thereon to rotate. During the rotation process, the centering spring piece 13 keeps the brake disc 6 in the center position of the rectangular base 10. During this process, the visual detection system is cooperated to judge and adjust the rotational movement of the brake disc 6 in real time.

[0041] In order to smoothly clamp the brake disc 6 and drive it to rotate, the following features are specifically set:

[0042] The inner positioning fixture assembly 2 includes a hollow cylindrical tube 19, a threaded collar 20 movably arranged on the inner side of the hollow cylindrical tube 19, a long screw rod 21 coaxially arranged on the inner side of the hollow cylindrical tube 19, a driving motor 22 fixedly arranged at one end of the hollow cylindrical tube 19, a plurality of X-shaped connecting rods 23 evenly distributed on the outer side of the hollow cylindrical tube 19, and a plurality of positioning rods 24 respectively arranged on the outer side of the X-shaped connecting rods 23. The wall of the hollow cylindrical tube 19 is formed with a plurality of strip-shaped through holes 25 evenly distributed along the circumferential direction, and one end of each strip-shaped through hole 25 is fixedly provided with a hinge shaft 26. The outer wall of the threaded collar 20 is formed with a Several first articulated seats 27 are evenly distributed along the circumferential direction, and each first articulated seat 27 is slidably embedded in the corresponding strip-shaped through hole 25. The two ends of each X-shaped connecting rod 23 close to the hollow cylindrical tube 19 are respectively connected to the corresponding articulated shaft 26 and the first articulated seat 27. A second articulated seat 28 is provided at one end of the inner side of each positioning rod 24, and a strip-shaped hole slide rail 29 is formed at the other end. The two ends of the X-shaped connecting rod 23 away from the hollow cylindrical tube 19 are respectively connected to the second articulated seat 28 and the strip-shaped hole slide rail 29. The driving motor 22 is fixedly connected to one end of the long lead rod 21, and the long lead rod 21 is threadedly connected to the threaded collar 20.

[0043] When the rotating spindle system drives the internal positioning fixture assembly 2 to extend into the predetermined position of the center hole of the brake disc 6, the drive motor 22 operates to rotate the long screw 21. The rotation of the long screw 21 drives the threaded collar 20 that is threadedly matched with it to translate. The translation of the threaded collar 20 causes the angle of the X-shaped connecting rod 23 to change. The X-shaped connecting rod 23 is formed by two hinged connecting rods. During this process, the length of the X-shaped connecting rod 23 in the radial direction of the hollow cylindrical tube 19 increases, thereby moving the positioning rod 24 connected to it radially outward until the positioning rod 24 is fully embedded and tightened against the inner wall of the brake disc 6, thereby completing the internal support clamping of the brake disc 6. As the angle of the X-shaped connecting rod 23 changes with the movement of the threaded collar 20, the strip-shaped hole slide rail 29 formed on the inner wall of the positioning rod 24 is used to accommodate the change in the length of the X-shaped connecting rod 23 in the generatrix direction of the hollow cylindrical tube 19, thereby effectively preventing it from getting stuck.

[0044] In order to more stably support and clamp the inner wall of the brake disc 6, the following features are specifically set:

[0045] The outer wall of the positioning rod 24 is a curved structure, and an inner support slider 30 is slidably embedded in the outer side of the positioning rod 24. The two side walls of the positioning rod 24 are formed with strip-shaped sliding grooves 31 for the inner support slider 30 to slide and engage. A locking bolt 32 is screwed onto the inner support slider 30 to press against the outer wall of the positioning rod 24.

[0046] During the rotation of the aforementioned brake disc 6, the visual inspection system conducts real-time detection and finally makes the arc-shaped opening 7 on the inner hole of the brake disc 6 (the arc-shaped opening 7 is the opening between several spaced connecting ears 8 formed on the inner ring of the brake disc 6, and the connecting ears 8 connect the joints. For different models, the brake discs 6 are the same, and the difference lies in the difference in the joints) correspond one by one to the positions of all the positioning rods 24. Then, the positioning rod 24 can be directly embedded in the arc-shaped opening 7 during the process of moving radially outward. At this time, the inner support slider 30 on the outside of the positioning rod 24 is pressed tightly. Since the thickness of the aforementioned connecting ear 8 is smaller than the thickness of the brake disc 6, and some special brake discs 6 have a shape reason, the distance between the top of the arc opening 7 and the center of the brake disc 6 is smaller than the inner diameter of the brake disc 6. Therefore, the inner support slider 30 is added to adapt to such situations. At this time, the top of the arc opening 7 is tightened by the positioning rod 24, and the inner wall of the brake disc 6 is tightened by the inner support slider 30, thereby ensuring the stability of the external support clamping.

[0047] In order to ensure that in extreme cases such as when the brake disc 6 is not correctly positioned, the inner positioning fixture assembly 2 does not collide with the brake disc 6 during the process of moving toward the inner hole of the brake disc 6, the following features are specifically provided:

[0048] An umbrella-shaped cone head 33 is fixedly connected to one end of the hollow cylindrical tube 19 facing the brake pad, and bearing end covers 34 are fixedly connected to both ends of the hollow cylindrical tube 19 for axially connecting the two ends of the long screw rod 21. The outer side of one of the bearing end covers 34 is formed with a connecting column 35 for the umbrella-shaped cone head 33 to be sleeved, and the center of the umbrella-shaped cone head 33 is formed with a bolt hole 36 for being fixedly connected to the connecting column 35. The outer side of the other bearing end cover 34 is fixedly connected to a connecting handle 37 for connecting to the rotating spindle system, and the connecting handle 37 is arranged coaxially with the hollow cylindrical tube 19.

[0049] The umbrella-shaped cone head 33 is provided to ensure that the brake disc 6 can still be smoothly picked up and clamped when it is displaced. The umbrella-shaped cone head 33 is fixed to the head of the hollow cylindrical tube 19 by bolts passing through bolt holes 36. When all the rear positioning rods 24 are retracted into the strip-shaped through-holes 25 in the hollow cylindrical tube 19, all positioning rods 24 are within the coverage range of the umbrella-shaped cone head 33, thereby ensuring that the umbrella-shaped cone head 33 will not cause the rear positioning rods 24 to collide with the inner ring of the brake disc 6 during the process of being guided by its own inclined surface into the inner ring of the brake disc 6. In addition, the entire hollow cylindrical tube 19 is connected to the rotary output shaft of the rotary spindle system via a connecting handle 37 at the rear end, so that the rotary spindle system can drive the inner positioning fixture assembly 2 to perform translational and rotational movements.

[0050] In order to achieve the double-sided synchronous grinding and polishing of the brake disc 6 during rotation in a simple manner, the following features are specifically set:

[0051] The double-sided polishing assembly 3 also includes an opposing clamping jaw assembly 38 and two groups of grinding motors 39 respectively arranged at the two claw ends of the opposing clamping jaw assembly 38. The output shaft of each grinding motor 39 is connected to the corresponding roller polishing brush 5. The opposing clamping jaw assembly 38 is connected to the translation guide rail assembly 4 through a slide 40. The upper end of the long connecting rod 9 is connected to the bottom of the slide 40, and the lower end is connected to one side of the disc carrier 1.

[0052] Through the opposing clamping jaw assemblies 38 (mature existing technology, no longer described here), the grinding motors 39 are driven to approach each other until the two roller polishing brushes 5 respectively connected to the output shafts of the two grinding motors 39 are pressed against the disk surface of the brake disc 6, and the high-speed rotation of the grinding motor 39 is coordinated to achieve synchronous grinding and polishing of the double-sided disk surface of the brake disc 6.

[0053] During the mechanical grinding process of the brake disc 6, both the roller polishing brush 5 and the brake disc 6 may rotate, depending on the specific grinding equipment and process design.

[0054] 1. Rotary grinding with the roller polishing brush 5 is the most common grinding method. The advantage of this method is that the rotation speed of the roller polishing brush 5 can be precisely controlled, which can provide a stable and efficient cutting force. Due to the rotational motion of the roller polishing brush 5, the abrasive particles pass over the surface of the brake disc 6 at a very high speed, achieving the purpose of removing burrs and grinding. At the same time, by controlling the feed rate of the roller polishing brush 5, that is, the distance that the roller polishing brush 5 approaches the surface of the brake disc 6, the grinding depth can be precisely controlled. For example, when the surface of the brake disc 6 needs to be finely ground, the feed rate can be set to a smaller value so that the thickness of each cutting by the roller polishing brush 5 is very thin, thereby obtaining a smooth surface.

[0055] 2. Rotational grinding of the brake disc 6: The rotation of the brake disc 6 allows the entire surface to pass evenly through the roller polishing brush 5. This method helps ensure uniform grinding for large, regularly shaped brake discs 6. Furthermore, this method can better utilize the rotational inertia of the brake disc 6, reducing vibration during the grinding process. This provides a more stable grinding effect, especially at high speeds.

[0056] 3. The roller polishing brush 5 and the brake disc 6 rotate and polish simultaneously. This method combines the advantages of the above two methods. Their rotation directions can be the same or opposite. For example, when the roller polishing brush 5 and the brake disc 6 rotate in opposite directions, the relative speed will increase, thereby improving the efficiency of polishing. At the same time, this method can also have a good polishing effect on brake discs 6 with complex shapes. By reasonably adjusting the rotation speed and feed rate of the two, the polishing process can be made more flexible and precise. For example, when polishing a brake disc 6 with complex patterns or ventilation grooves, simultaneous rotation can ensure that all parts can be fully polished, and the polishing parameters can be dynamically adjusted according to the requirements of different parts.

[0057] In order to ensure that the disc carrier 1 can synchronously drive the double-sided polishing assembly 3 away from or close to the brake disc 6 during the lifting process, the following features are specifically set:

[0058] The translation guide rail assembly 4 includes a rectangular slide rail structure composed of two guide rods 41 and two fasteners 42 . First linear bearings 43 are respectively embedded at both ends of the slide seat 40 . The two first linear bearings 43 are respectively slidably sleeved on the two guide rods 41 .

[0059] When the disc carrier 1 descends, the long connecting rod 9 drives the slide 40 on the two guide rods 41 to move horizontally, thereby driving the two roller polishing brushes 5 to approach the brake disc 6. When the disc carrier 1 rises to catch the disc, the long connecting rod 9 can drive the slide 40 together with the opposing clamping jaw assembly 38 and the two roller polishing brushes 5 to move away from the brake disc 6 synchronously, thereby ensuring the linkage between the disc carrier 1 and the double-sided polishing assembly 3 and avoiding the occurrence of collision between the two.

[0060] In order to be able to fine-tune the precise position of the two roller polishing brushes 5 during operation, the following features are specifically set:

[0061] A sliding beam 44 is provided between the long connecting rod 9 and the double-sided polishing assembly 3. The upper end of the long connecting rod 9 is hinged to the bottom of the sliding beam 44. Both ends of the sliding beam 44 are embedded with second linear bearings 45 that cooperate with the guide rod 41. An adjusting screw 46 is connected to the middle axis of the sliding beam 44, and a flange screw sleeve 47 for cooperating with the adjusting screw 46 is provided on the slide seat 40.

[0062] Before the grinding work is carried out, the working positions of the two roller polishing brushes 5 need to be pre-adjusted. The specific method is that after the brake disc 6 is clamped to the inner positioning fixture assembly 2 and fixed, the disc carrier 1 drops and stops. At this time, the long connecting rod 9 directly pulls the sliding beam 44 and indirectly drives the opposing clamping jaw assembly 38 to move to the working position. At this time, the rotating spindle system and the grinding motor 39 are not working. At this time, the opposing clamping jaw assembly 38 drives the two roller polishing brushes 5 to approach and fit the disc surface of the brake disc 6. At this time, the adjusting screw 46 is rotated, and the rotation of the adjusting screw 46 drives the slide 40 threadedly matched with it to move horizontally along the guide rod 41, thereby realizing fine-tuning of the positions of the two roller polishing brushes 5 in the horizontal direction until it is adjusted to the point that the farthest end of the roller polishing brush 5 does not touch the positioning rod 24. In this way, the position of the roller polishing brush 5 is accurately adjusted to avoid the risk of collision with the rotating positioning rod 24 during subsequent formal work.

[0063] The above embodiments merely represent one or several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A double-sided grinding and deburring device for a brake disc, comprising a lifting system and a rotating spindle system capable of horizontal movement, characterized in that: A disc carrier (1) is provided on the lifting output end of the lifting system, an inner positioning fixture assembly (2) is provided on the rotating output end of the rotating spindle system, a double-sided polishing assembly (3) and a translation guide rail assembly (4) are also provided on the side of the disc carrier (1), the double-sided polishing assembly (3) is movably provided on the translation guide rail assembly (4), the double-sided polishing assembly (3) includes two roller polishing brushes (5) that can approach each other, the two roller polishing brushes (5) are respectively located on both sides of the brake disc (6), the translation guide rail assembly (4) is fixedly provided in a horizontal state and is perpendicular to the rotating spindle system, and the double-sided polishing assembly (3) and the disc carrier (1) are connected via a long connecting rod (9); The double-sided polishing assembly (3) further comprises an opposing clamping jaw assembly (38) and two sets of grinding motors (39) respectively arranged at the two claw ends of the opposing clamping jaw assembly (38), the output shaft of each grinding motor (39) being connected to the corresponding roller polishing brush (5), the opposing clamping jaw assembly (38) being connected to the translation guide rail assembly (4) via a slide seat (40), the upper end of the long connecting rod (9) being connected to the bottom of the slide seat (40), and the lower end being connected to one side of the disc carrier (1); A sliding beam (44) is provided between the long connecting rod (9) and the double-sided polishing assembly (3), the upper end of the long connecting rod (9) is hinged to the bottom of the sliding beam (44), and both ends of the sliding beam (44) are embedded with second linear bearings (45) that match the guide rod (41), and the middle axis of the sliding beam (44) is connected to an adjusting screw (46), and a flange screw sleeve (47) for matching the adjusting screw (46) is provided on the slide seat (40).

2. The double-sided grinding and deburring device for a brake disc according to claim 1, characterized in that: The disk carrier (1) comprises a rectangular base (10), two supporting rollers (11) arranged on the inner side of the rectangular base (10), two guiding columns (12) arranged on the inner side of the rectangular base (10), and two pairs of centering springs (13) arranged at both ends of the rectangular base (10). The rectangular base (10) is formed with a receiving groove (14) extending downward from the top, and both side walls of the rectangular base (10) are provided with V-shaped avoidance notches (15) of the same shape and extending downward. The two supporting rollers (11) are respectively axially connected to the bottom of the two ends of the receiving groove (14). The rectangular base (10) is also provided with a rotating mechanism for driving one of the supporting rollers (11) to rotate. The two guiding columns (12) are provided on the inner side of the rectangular base (10). The columns (12) are respectively fixedly arranged at the upper halves of both ends of the accommodating slot (14), the upper end of each guide column (12) extends upward, and the inner sides of the upper ends of the two guide columns (12) are formed with an oblique angle portion (16) for guiding the brake disc (6) to slide down, and two pairs of centering springs (13) are respectively arranged at the top of both ends of the rectangular base (10), and the number of each pair of centering springs (13) is two. The lower end of each centering spring (13) is fixedly connected to the inner wall of the accommodating slot (14), the upper half of each centering spring (13) is an arc-shaped plate structure, and the arc tops of each pair of centering springs (13) are arranged facing each other, and the two guide columns (12) are respectively arranged at the middle position of the two pairs of centering springs (13).

3. The double-sided grinding and deburring device for a brake disc according to claim 2, characterized in that: The rotating mechanism comprises a rotating motor (17), a synchronous belt and two synchronous wheels connected by the synchronous belt transmission, wherein the rotating motor (17) is fixedly arranged at one end of the rectangular base (10), wherein the central axis of a support roller (11) close to the rotating motor (17) extends to the outside of the rectangular base (10), and the two synchronous wheels are respectively arranged on the output shaft of the rotating motor (17) and the extended end of the corresponding support roller (11), and a plurality of bearings (18) for the support roller (11) to be connected are embedded on both side walls of the rectangular base (10).

4. The double-sided grinding and deburring device for a brake disc according to claim 1, characterized in that: The inner positioning fixture assembly (2) includes a hollow cylindrical tube (19), a threaded collar (20) movably arranged on the inner side of the hollow cylindrical tube (19), a long screw rod (21) coaxially arranged on the inner side of the hollow cylindrical tube (19), a driving motor (22) fixedly arranged at one end of the hollow cylindrical tube (19), a plurality of X-shaped connecting rods (23) evenly distributed on the outer side of the hollow cylindrical tube (19), and a plurality of positioning rods (24) respectively arranged on the outer side of the X-shaped connecting rods (23). The wall of the hollow cylindrical tube (19) is formed with a plurality of strip-shaped through holes (25) evenly distributed along the circumferential direction, and one end of each of the strip-shaped through holes (25) is fixedly provided with a hinge shaft (26). The outer wall of the threaded collar (20) is formed with a plurality of There are a plurality of first hinge seats (27) uniformly distributed along the circumferential direction, each first hinge seat (27) is slidably embedded in the corresponding strip-shaped through hole (25), and each of the two ends of the X-shaped connecting rod (23) close to the hollow cylindrical tube (19) is respectively connected to the corresponding hinge shaft (26) and the first hinge seat (27), and each of the positioning rods (24) is provided with a second hinge seat (28) at one end on the inner side, and a strip-shaped hole slide rail (29) is formed at the other end, and the two ends of the X-shaped connecting rod (23) away from the hollow cylindrical tube (19) are respectively connected to the second hinge seat (28) and the strip-shaped hole slide rail (29), and the driving motor (22) is fixedly connected to one end of the long screw rod (21), and the long screw rod (21) is threadedly connected to the threaded collar (20).

5. The double-sided grinding and deburring device for brake discs according to claim 4, characterized in that: The outer wall of the positioning rod (24) is an arc structure, and an inner support slider (30) is slidably embedded in the outer side of the positioning rod (24). The two side walls of the positioning rod (24) are formed with strip-shaped sliding grooves (31) for the inner support slider (30) to slide and fit in. A locking bolt (32) is screwed onto the inner support slider (30) for pressing against the outer wall of the positioning rod (24).

6. The double-sided grinding and deburring device for a brake disc according to claim 4, characterized in that: An umbrella-shaped cone head (33) is fixedly connected to one end of the hollow cylindrical tube (19) facing the brake pad, and bearing end covers (34) are fixedly connected to both ends of the hollow cylindrical tube (19) for axial connection of the two ends of the long screw rod (21), wherein the outer side of one bearing end cover (34) is formed with a connecting column (35) for sleeved with the umbrella-shaped cone head (33), and the center of the umbrella-shaped cone head (33) is formed with a bolt hole (36) for fixed connection with the connecting column (35), and the outer side of the other bearing end cover (34) is fixedly connected with a connecting handle (37) for connecting to the rotating spindle system, and the connecting handle (37) is coaxially arranged with the hollow cylindrical tube (19).

7. The double-sided grinding and deburring device for a brake disc according to claim 1, characterized in that: The translation guide rail assembly (4) comprises a rectangular slide rail structure composed of two guide rods (41) and two fasteners (42), and first linear bearings (43) are respectively embedded at both ends of the slide seat (40), and the two first linear bearings (43) are respectively slidably sleeved on the two guide rods (41).

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