Brake disc multi-station grinding equipment

Abstract

This application discloses a multi-station grinding equipment for brake discs. By dividing the base into loading and unloading areas, outer edge processing areas, toroidal surface processing areas, and inner edge processing areas, and by setting corresponding outer edge grinding mechanisms, toroidal surface grinding mechanisms, and inner edge grinding mechanisms in each processing area, the outer edge grinding operation, toroidal surface grinding operation, and inner edge grinding operation of brake discs are integrated on the same grinding equipment, thereby improving the grinding efficiency of brake discs.

Description

Technical Field

[0001] This application relates to the technical field of brake disc grinding, and more particularly to a multi-station brake disc grinding equipment. Background Technology

[0002] As a key component of the automotive braking system, the brake disc is usually used in conjunction with the brake caliper and brake pads. When the vehicle needs to decelerate or brake, the brake caliper pushes the brake pads to clamp the brake disc, using friction to convert the vehicle's kinetic energy into heat energy, thereby reducing the vehicle speed or stopping it.

[0003] Brake discs are typically formed by stamping, and their inner edges, outer edges, and circumferential surfaces are prone to burrs. These burrs make the brake disc surface rough and uneven, necessitating separate grinding of the inner edges, outer edges, and circumferential surfaces. However, most manufacturers typically perform these three grinding processes—inner edge grinding, outer edge grinding, and circumferential surface grinding—on three separate grinding machines. This requires transferring the brake disc between these machines, increasing grinding time and reducing grinding efficiency. Therefore, integrating the inner edge, outer edge, and circumferential surface grinding operations of brake discs into a single processing machine to improve grinding efficiency is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] In view of the shortcomings of the above-mentioned related technologies, the purpose of this application is to provide a multi-station grinding equipment for brake discs, which solves the technical problem that existing brake disc grinding equipment cannot perform inner edge, outer edge and annular surface grinding functions at the same time, resulting in low grinding efficiency.

[0005] To achieve the above and other related objectives, this application provides a multi-station brake disc grinding machine for grinding brake discs. The brake disc is generally annular, having an inner edge, an outer edge, and annular surfaces on opposite sides. The multi-station brake disc grinding machine includes: a base having an annular surface processing area, a loading / unloading area, and an inner edge processing area surrounding an outer edge processing area; an outer edge grinding mechanism disposed in the outer edge processing area, including an outer edge grinding device for grinding the outer edge of the vertically placed brake disc; and an annular surface grinding mechanism disposed in the annular surface processing area, including three annular surfaces for grinding the annular surfaces on both sides of the vertically placed brake disc after the outer edge grinding operation has been completed. A grinding apparatus, and a rotating mechanism disposed between the three annular grinding apparatuses for transferring the brake disc between the three annular grinding apparatuses and the outer edge grinding apparatus; wherein the grinding time of each annular grinding apparatus is 1 / 3 of the grinding time of the outer edge grinding apparatus; an inner edge grinding mechanism disposed in the inner edge processing area, including an inner edge grinding apparatus, for grinding the inner edge of the horizontally placed brake disc that has completed annular grinding; and a transfer mechanism disposed near the outer edge grinding mechanism for switching the brake disc between a vertical and horizontal placement state and transferring the brake disc from the outer edge processing area to the inner edge processing area for inner edge grinding.

[0006] In summary, the multi-station grinding equipment for brake discs provided in this application integrates the outer edge grinding, toroidal surface grinding, and inner edge grinding operations on the same grinding equipment by dividing the base into loading and unloading areas, outer edge processing areas, toroidal surface grinding areas, and inner edge processing areas, and by setting corresponding outer edge grinding mechanisms, toroidal surface grinding mechanisms, and inner edge grinding mechanisms in each processing area, thereby improving the grinding efficiency of brake discs.

[0007] The multi-station grinding equipment for brake discs disclosed in this application configures the toroidal grinding mechanism to include three toroidal grinding devices, and sets the grinding time of each toroidal grinding device to 1 / 3 of the grinding time of the outer edge grinding device. This allows the brake disc to complete the toroidal grinding operation in parallel while the outer edge grinding operation is being performed, thereby adjusting the production cycle of the grinding equipment and further improving the grinding efficiency of the brake disc. Furthermore, this application achieves the connection between the outer edge grinding operation and the toroidal grinding operation by setting a rotary mechanism for transfer between the three toroidal grinding devices and the outer edge grinding device, ensuring automated, continuous, assembly-line grinding of the brake disc. Attached Figure Description

[0008] The specific features involved in this application are shown in the appended claims. The features and advantages of the invention can be better understood by referring to the exemplary embodiments and accompanying drawings described in detail below. A brief description of the drawings is as follows:

[0009] Figure 1 The diagram shown is a schematic representation of the shape of a brake disc in one embodiment of this application.

[0010] Figure 2 and Figure 3 The images shown are schematic diagrams of the multi-station grinding equipment for brake discs in one embodiment of this application, viewed from different angles.

[0011] Figure 4 The diagram shown is a schematic representation of the outer edge grinding mechanism in one embodiment of this application.

[0012] Figure 5 The diagram shown is a schematic representation of the outer edge grinding machine base in one embodiment of this application.

[0013] Figures 6 to 8 The images are schematic diagrams showing the process of outer edge grinding using a first grinding wheel and a second grinding wheel in one embodiment of this application.

[0014] Figure 9 The diagram shown is a structural schematic of the transfer mechanism in one embodiment of this application.

[0015] Figure 10 This application is displayed. Figure 9 A schematic diagram of the clamping assembly in the illustrated embodiment.

[0016] Figure 11 The diagram shown is a schematic of the second gripper holding the brake disc in one embodiment of this application.

[0017] Figure 12 and Figure 13 The following are schematic diagrams of the structure of the first annular grinding device in different embodiments of this application.

[0018] Figure 14 The diagram shown is a partially enlarged view of the first annular grinding device in one embodiment of this application.

[0019] Figure 15 The diagram shown is a structural schematic of a rotating mechanism according to an embodiment of this application.

[0020] Figure 16 This application is displayed. Figure 15 A schematic diagram of the rotating bracket in the embodiment shown.

[0021] Figure 17 This application is displayed. Figure 16 A schematic diagram of the rotary drive device in the embodiment.

[0022] Figure 18 The diagram shown is a structural schematic of the inner edge grinding mechanism in one embodiment of this application.

[0023] Figure 19 This is a schematic diagram showing the state of the measuring device when the brake disc is being ground on its inner edge in one embodiment of this application.

[0024] Figure 20 The diagram shows the state of the measuring device when the brake disc completes the inner edge grinding operation in one embodiment of this application.

[0025] Figure 21 The diagram shown is a structural schematic of the measuring block in one embodiment of this application.

[0026] Figure 22 The diagram shown is a structural schematic of a grinding wheel dressing device in one embodiment of this application. Detailed Implementation

[0027] The following specific embodiments illustrate the implementation of this application. Those skilled in the art can easily understand the advantages and technical effects of this application from the content disclosed in this specification. In the following description, some embodiments may be referenced to the accompanying drawings. It should be understood that other embodiments not shown in the drawings may also be used, and changes in specific structures, parts or mechanisms, components, and operations may be made without departing from the spirit and scope of this application. The following detailed description should not be considered limiting, and the scope of the embodiments of this application is limited only by the claims published in this application. The terminology used herein is for describing particular embodiments only and is not intended to limit this application.

[0028] It should be understood that although the terms first, second, or third, etc., may be used herein to describe various elements or parameters in some embodiments, these elements or parameters should not be limited by these terms. These terms are used only to distinguish one element or parameter from another, and not to define the order, priority, or importance of multiple elements. For example, a first outer edge grinding spindle may be referred to as a second outer edge grinding spindle, and similarly, a second outer edge grinding spindle may be referred to as a first inner edge grinding spindle, without departing from the scope of the various described embodiments.

[0029] Furthermore, as used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context indicates otherwise. It should be further understood that the terms “comprising,” “including,” and “including” indicate the presence of the stated features, steps, operations, elements, components, items, kinds, and / or groups, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, kinds, and / or groups. For example, a process, method, system, product, or device that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products, or devices. Additionally, the term “and / or,” which may be used hereinafter, describes the relationship between related objects, indicating that three relationships may exist; for example, A and / or B can represent: A alone, A and B simultaneously, and B alone. Furthermore, the character “ / ”, unless otherwise specified, generally indicates that the preceding and following related objects have an “and / or” relationship. Additionally, in the description of embodiments of this application, “multiple” refers to two or more. Furthermore, the terms “or” and “and / or” as used herein are interpreted as inclusive, or mean either one or any combination thereof. Exceptions to this definition only arise when a combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.

[0030] It should also be understood that when an element, such as a layer, processing region, or substrate, is referred to as being "on" another element or extending "on" another element, the element may be directly on or directly extending onto the other element, or intermediate elements may be present. Conversely, when an element is referred to as being "directly on" another element or "directly extending onto" another element, no intermediate elements are present. It will also be understood that when an element is referred to as being "connected" or "attached" to another element, it may be directly connected or coupled to the other element, or intermediate elements may be present. Conversely, when an element is referred to as being "directly connected" or "directly coupled" to another element, no intermediate elements are present. Furthermore, the term "coupled" generally means physical, mechanical, magnetic, and / or electrical coupling or connection, and in the absence of specific contrasting language, the presence of intermediate elements between coupled or associated items is not excluded.

[0031] Relative terms such as “below,” “above,” “upper,” “lower,” “horizontal,” or “vertical” may be used herein to describe the relationship between one element, layer, or processing area and another element, layer, or processing area illustrated in the figures. It will be understood that these terms are intended to cover different device orientations other than those depicted in the figures. In this application, “vertical,” “horizontal,” and “parallel” are defined as including cases within ±10% of the standard definition. For example, vertical typically refers to an angle of 90° relative to a reference line, but in this application, vertical refers to cases including those within 80° to 100°. Unless otherwise expressly stated, comparative quantitative terms (such as “above” and “below”) are intended to cover the concept of equality. As an example, “above” can mean not only “greater than” in a mathematical sense but also “equal to.”

[0032] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application. When used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will also be understood that, when used herein, the terms “comprising,” “including,” “containing,” and / or “comprising” designate the presence of the stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or combinations thereof.

[0033] Unless otherwise specified, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. It will also be understood that terms used herein shall be interpreted as having the meaning consistent with their meaning in the context of this specification and the relevant field, and shall not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0034] In view of the technical problems mentioned in the background art, this application discloses a multi-station grinding equipment for brake discs. By dividing the base into loading and unloading areas, outer edge processing areas, annular surface processing areas, and inner edge processing areas, and by setting outer edge grinding mechanisms, annular surface grinding mechanisms, and inner edge grinding mechanisms in each processing area, the outer edge grinding operation, annular surface grinding operation, and inner edge grinding operation of brake discs are integrated on the same grinding equipment, thereby improving the grinding efficiency of brake discs.

[0035] The multi-station grinding equipment for brake discs disclosed in this application configures the toroidal grinding mechanism to include three toroidal grinding devices, and sets the grinding time of each toroidal grinding device to 1 / 3 of the grinding time of the outer edge grinding device. This allows the brake disc to complete the toroidal grinding operation in parallel while the outer edge grinding operation is being performed, thereby adjusting the production cycle of the grinding equipment and further improving the grinding efficiency of the brake disc. Furthermore, this application achieves the connection between the outer edge grinding operation and the toroidal grinding operation by setting a rotary mechanism for transfer between the three toroidal grinding devices and the outer edge grinding device, ensuring automated, continuous, assembly-line grinding of the brake disc.

[0036] To clarify the definition of direction and the operation between different structures, the embodiments disclosed in this application define a three-dimensional space defined by the horizontal, vertical, and longitudinal directions, where the horizontal, vertical, and longitudinal directions are all straight lines and are mutually perpendicular. For example, the length extension direction of the base bottom is defined as horizontal (as shown in the figure). Figure 2 The direction of the arrow X in the diagram is defined as the longitudinal direction (as shown by the arrow X in the diagram). Figure 2 The direction of the arrow Y in the diagram is used to define the vertical direction, also known as the vertical direction or the up-down direction (as shown in the diagram). Figure 2 (The direction of arrow Z in the diagram).

[0037] To clearly illustrate the positional relationships between the various devices, components, structures, or mechanisms in the embodiments of this application, along the longitudinal direction of the base, the side of the multi-station brake disc grinding equipment used for loading and unloading is defined as the proximal end, and the side of the multi-station brake disc grinding equipment away from loading and unloading is defined as the distal end. That is, the proximal end and the distal end correspond to opposite sides of the multi-station brake disc grinding equipment, which are opposite to each other or far apart.

[0038] In any embodiment provided in this application, the brake disc refers to a generally flat, annular structure. Specifically, please refer to [link to relevant documentation]. Figure 1 The image shown is a schematic diagram of the shape of the brake disc in one embodiment of this application, as follows: Figure 1 As shown, the brake disc 1 has an outer edge 11, an inner edge 12, and annular surfaces 13 on opposite sides. In practical applications, the outer edge may have ventilation slots or holes to enhance heat dissipation, and the inner edge 12 may have mounting holes for fixing and connecting to a wheel hub. In some embodiments, the brake disc is also referred to as a brake disc. In the embodiments described in this application, the outer edge 11 of the brake disc 1 has a diameter of approximately 840 mm, the inner edge 12 has a diameter of approximately 356 mm, and a thickness of approximately 80 mm.

[0039] The multi-station grinding equipment for brake discs described in this application is used for grinding brake discs 1. Please refer to... Figure 2 and Figure 3The figures shown are schematic diagrams of the multi-station brake disc grinding equipment in one embodiment of this application, viewed from different angles. Figure 2 and Figure 3 As shown, the multi-station brake disc grinding equipment 2 includes a base 21, an outer edge grinding mechanism 22, an annular surface grinding mechanism 23, and an inner edge grinding mechanism 24. The outer edge grinding mechanism 22 is used to perform grinding operations on the outer edge 11 of the brake disc 1 (hereinafter referred to as outer edge grinding operation), the annular surface grinding mechanism 23 is used to perform grinding operations on the annular surfaces 13 on opposite sides of the brake disc 1 (hereinafter referred to as annular surface grinding operation), and the inner edge grinding mechanism 24 is used to perform grinding operations on the inner edge 12 of the brake disc 1 (hereinafter referred to as inner edge grinding operation).

[0040] In one embodiment, the base 21, as the main component of the multi-station brake disc grinding equipment 2 of this application, can be configured with a heavy material such as stainless steel or cast iron to provide robust overall stability. In some examples, the base 21 includes fixing or limiting structures for supporting different mechanisms or components in the multi-station brake disc grinding equipment 2, such as a base, column, or frame. In some examples, the base 21 can be a single, integrated base. In some examples, the base 21 can include multiple independent bases.

[0041] In one embodiment, it is presented as follows Figure 3 As indicated by the dashed lines, the base 21 has an outer edge processing area 211, and a toroidal processing area 212, a loading / unloading area 213, and an inner edge processing area 214 surrounding the outer edge processing area 211. It should be noted that in the examples provided in this application, each processing area is defined by the travel path and range of the processing device corresponding to that area. For example, the outer edge grinding mechanism 22 is located in the outer edge processing area 211, and the range of the outer edge processing area 211 is the range occupied by the outer edge grinding mechanism 22 during the outer edge grinding operation. Similarly, the toroidal grinding mechanism 23 is located in the toroidal processing area 212, and the range of the toroidal processing area 212 is the range occupied by the toroidal grinding mechanism 23 during the toroidal grinding operation; the inner edge grinding mechanism 24 is located in the inner edge processing area 214, and the range of the inner edge processing area 214 is the range occupied by the inner edge grinding mechanism 24 during the inner edge grinding operation. The range of the loading and unloading area 213 can be understood as the range for loading and unloading the brake disc.

[0042] Please see Figure 4 The image shown is a schematic diagram of the outer edge grinding mechanism in one embodiment of this application. Figure 4As shown, the outer edge grinding mechanism 22 includes an outer edge grinding device 221 for performing outer edge grinding operations on the vertically placed brake disc 1. The vertical placement refers to the direction of the axis of the brake disc 1 being parallel to the surface of the base 21.

[0043] In one embodiment, such as Figure 4 As shown, the outer edge grinding mechanism 22 also includes a forward / backward drive device 222 disposed on the base 21. The forward / backward drive device 222 is used to drive the outer edge grinding device 221 to move longitudinally. In some examples, the forward / backward drive device 222 may include a longitudinal guide rail, a longitudinal moving lead screw, and a longitudinal moving drive motor disposed on the base 21. The longitudinal moving drive motor drives the longitudinal moving lead screw to rotate, thereby driving the outer edge grinding device 221 to move on the longitudinal guide rail. In other examples, the forward / backward drive device 222, in addition to including the longitudinal guide rail, may also be configured to include a longitudinal moving rack, a longitudinal moving gear, and a longitudinal moving gear drive motor. The longitudinal moving rack may be arranged parallel to the longitudinal guide rail. The longitudinal moving gear meshes with the longitudinal moving rack. The longitudinal moving gear drive motor is associated with the longitudinal moving gear. The longitudinal moving gear drive motor drives the connected longitudinal moving gear to rotate. Through the meshing of the longitudinal moving gear drive motor and the longitudinal moving rack, the outer edge grinding device 221 is driven to move on the longitudinal guide rail. Of course, the forward and backward drive device 222 can still be modified in other ways, for example, it can also be configured as a chain conveyor or a conveyor belt conveyor.

[0044] In one embodiment, such as Figure 4 As shown, the outer edge grinding mechanism 22 also includes a lateral drive device 223 disposed above the forward / reverse drive device 222 for driving the outer edge grinding device 221 to move laterally to approach the brake disc. In some examples, the lateral drive device 223 may include a lateral guide rail, a lateral movement screw, and a lateral movement drive motor disposed on the forward / reverse drive device 222. The lateral movement drive motor drives the lateral movement screw to rotate, thereby driving the outer edge grinding device 221 to move on the lateral guide rail. In other examples, the lateral drive device 223, in addition to including the lateral guide rail, may also be configured to include a lateral movement rack, a lateral movement gear, and a lateral movement gear drive motor. The lateral movement rack may be arranged parallel to the lateral guide rail. The lateral movement drive gear meshes with the lateral movement rack. The lateral movement gear drive motor is associated with the lateral movement gear. The lateral movement gear drive motor drives the connected lateral movement gear to rotate. Through the meshing of the lateral movement gear and the lateral movement rack, the outer edge grinding device 221 is driven to move on the lateral guide rail.

[0045] In one embodiment, such as Figure 4As shown, the outer edge grinding device 221 includes an outer edge grinding machine base 2211 and an outer edge grinding spindle. The outer edge grinding machine base 2211 is disposed above the transverse drive device 223, and the outer edge grinding spindle is disposed on the outer edge grinding machine base 2211. That is, driven by the outer edge grinding machine base 2211, the outer edge grinding spindle approaches the outer edge 11 of the brake disc 1 through the transverse drive device 223, and performs feed grinding on the outer edge 11 through the feed drive device 222. In some examples, the outer edge grinding machine base 2211 serves as a carrier for the outer edge grinding spindle to be disposed on the base 21, and its specific form can be a beam, column, plate frame, bracket, etc.

[0046] In another embodiment, such as Figure 4 As shown, the outer edge grinding device 221, in addition to the outer edge grinding machine base 2211, also includes a first outer edge grinding spindle 2212 and a second outer edge grinding spindle 2213. The outer edge grinding machine base 2211 is disposed above the transverse drive device 223, the first outer edge grinding spindle 2212 is disposed on the outer edge grinding machine base 2211, and the second outer edge grinding spindle 2213 is disposed on the upper side of the first outer edge grinding spindle 2212. That is, driven by the outer edge grinding machine base 2211, the first outer edge grinding spindle 2212 and the second outer edge grinding spindle 2213 approach the outer edge 11 of the brake disc 1 through the transverse drive device 223, and perform feed grinding on the outer edge 11 through the advance and retraction drive device 222.

[0047] Please see Figure 5 and combined Figure 4 ,in, Figure 5 The diagram shown is a schematic representation of the outer edge grinding machine base in one embodiment of this application. Figure 5 As shown, the outer edge grinding machine base 2211 has a first mounting base 22111 for fixing the first outer edge grinding spindle 2212 on the side facing the brake disc, and a second mounting base 22112 for lifting and lowering the second outer edge grinding spindle 2213. Figure 5 In the example shown, the first mounting base 22111 is located on the lower side of the outer edge grinding machine base 2211, and the second mounting base 22112 is located on the upper side of the outer edge grinding machine base 2211. In some examples, the first mounting base 22111 is an integral structure, and the first outer edge grinding spindle 2212 can be fixedly connected to the first mounting base 22111, for example, by screwing.

[0048] In one embodiment, such as Figure 4 and Figure 5As shown, the outer edge grinding device 221 also includes a lifting drive structure 2214, which is disposed on the outer edge grinding machine base 2211 and is used to drive the second outer edge grinding spindle 2213 to perform lifting and lowering movements to adjust the grinding amount. It should be understood that by controlling the lifting and lowering of the second outer edge grinding spindle 2213, the contact depth between the second outer edge grinding spindle 2213 and the brake disc 1 can be adjusted. For example, if the lifting drive structure 2214 controls the second outer edge grinding spindle 2213 to move downwards, the second outer edge grinding spindle 2213 can make deeper contact with the outer edge 11 of the brake disc 1, thereby increasing the grinding amount; if the lifting drive structure 2214 controls the second outer edge grinding spindle 2213 to move upwards, the contact depth between the second outer edge grinding spindle 2213 and the outer edge 11 of the brake disc 1 can become shallower, thereby reducing the grinding amount.

[0049] Specifically, the lifting drive structure 2214 is disposed on the second mounting base 22112 and connected to the second outer edge grinding spindle 2213. In one example, as... Figure 5 As shown, the lifting drive structure 2214 includes a lifting guide rail 22141 arranged vertically on the outer edge grinding machine base 2211, a lifting slider arranged on the second outer edge grinding spindle 2213 and connected to the lifting guide rail 22141, and a lifting cylinder 22142 arranged on the outer edge grinding machine base 2211 for driving the lifting slider to slide on the lifting guide rail 22141 to drive the second outer edge grinding spindle 2213 to perform lifting and lowering movements.

[0050] In practical applications, to ensure stable lifting and lowering of the second outer edge grinding spindle 2213 on the second mounting base 22112, a dual-rail design can be adopted, i.e., two lifting rails 22141 can be used, which can be arranged in parallel. Furthermore, the lifting cylinder 22142 can be further configured to include a lifting screw and a lifting motor, wherein the lifting screw is vertically connected to the second outer edge grinding spindle 2213, and the lifting motor is connected to the lifting screw. Thus, the lifting motor drives the lifting screw to rotate, thereby enabling the second outer edge grinding spindle 2213 to move vertically along the lifting rails 22141. The implementation of the lifting drive unit is not limited to this; other components that can drive the second outer edge grinding spindle 2213 to move vertically along the vertical guide rails are also applicable. For example, the lifting drive unit may include a lifting rack, a drive gear meshing with the lifting rack, and a drive motor that drives the drive gear to rotate.

[0051] In one embodiment, a limit block is also provided on the second mounting base 22112 to limit the second outer edge grinding spindle 2213 from excessive displacement during lifting and lowering movements.

[0052] In one embodiment, such as Figure 4As shown, the proximal end of the first outer edge grinding spindle 2212 has a first grinding wheel 22121, and the proximal end of the second outer edge grinding spindle 2213 has a second grinding wheel 22131. The first outer edge grinding spindle 2212 and the second outer edge grinding spindle 2213 may have the same configuration.

[0053] Taking the first outer edge grinding spindle 2212 as an example, in some implementations, the first outer edge grinding spindle 2212 includes a first drive shaft with a cylindrical structure, which is connected to the first grinding wheel 22121. In some examples, the first drive shaft may be connected to a rotary drive motor, which drives the first drive shaft to rotate at high speed, thereby driving the first grinding wheel 22121 to rotate at high speed for outer edge grinding operations.

[0054] In one embodiment, the axes of the first grinding wheel 22121 and the second grinding wheel 22131 are parallel to the axis of the brake disc 1 so that the outer edge grinding operation is performed through the rims of the first grinding wheel 22121 and the second grinding wheel 22131. The first grinding wheel 22121 and the second grinding wheel 22131 are of the same specification. Taking the first grinding wheel 22121 as an example, in some examples, the first grinding wheel 22121 is configured as a circle with a through hole in the middle. It can be formed by bonding abrasive grains with a binder, forming an outer edge with abrasive grains that contacts and rotates with the outer edge of the brake disc 1 to be ground. The first grinding wheel 22121 has a certain abrasive grain size and density. The abrasive grains can be set to abrasive grains with a hardness greater than that of the brake disc 1 material, such as aluminum oxide, silicon carbide, or cubic boron diamond nitride, depending on the needs of grinding the brake disc 1.

[0055] In one embodiment, the first grinding wheel 22121 and the second grinding wheel 22131 are further connected to a cooling device for cooling the two grinding wheels. In one implementation, the cooling device includes a cooling water pipe, a guide groove, and a guide hole. The cooling water pipe is connected to a cooling water source, and the cooling water drawn through the cooling water pipe is directed to the guide groove and guide hole of the first grinding wheel 22121 and the second grinding wheel 22131, and is guided to the contact surface reaching the rim and the outer edge of the brake disc for cooling.

[0056] In one embodiment, the rim thickness of the first grinding wheel 22121 and the second grinding wheel 22131 is less than the outer rim thickness of the brake disc 1. It should be understood that the smaller rim thickness of the first grinding wheel 22121 and the second grinding wheel 22131 results in a smaller contact area with the brake disc rim during grinding, making it easier for the heat generated during grinding to dissipate and facilitating the removal of grinding debris.

[0057] In one embodiment, the first grinding wheel 22121 and the second grinding wheel 22131 are misaligned. This misalignment means that the first grinding wheel 22121 and the second grinding wheel 22131 are not completely aligned in space, causing the contact positions of their rims on the outer edge 11 of the brake disc 1 to be staggered and spaced apart. This avoids repeated grinding at the same position on the outer edge 11 by the first grinding wheel 22121 and the second grinding wheel 22131. The collaborative processing of the two grinding wheels expands the coverage of a single grinding operation, thereby improving grinding efficiency.

[0058] In one embodiment, the first grinding wheel 22121 and the second grinding wheel 22131 are staggered in the horizontal, vertical, and longitudinal directions, respectively. That is, the first grinding wheel 22121 and the second grinding wheel 22131 are not aligned in the horizontal, vertical, and longitudinal directions, respectively. For details, please refer to [link to relevant documentation]. Figures 6 to 8 The diagrams shown are schematic representations of the outer edge grinding operation performed using a first grinding wheel and a second grinding wheel in one embodiment of this application. To facilitate illustrating the outer edge grinding process and the relative positions of the first and second grinding wheels, Figures 6 to 8 All are presented as top views. For example... Figures 6 to 8 In the example shown, in the horizontal direction, the left end of the second grinding wheel 22131 protrudes beyond the left end of the first grinding wheel 22121; in the vertical direction, the second grinding wheel 22131 is located at the far end of the first grinding wheel 22121; and in the vertical direction, the second grinding wheel 22131 is located above the first grinding wheel 22121.

[0059] It should be noted here that, Figures 6 to 8 The relative positions of the first grinding wheel 22121 and the second grinding wheel 22131 are only schematically illustrated and should not be construed as limiting this application. Figures 6 to 8 In the example shown, the first grinding wheel 22121 and the second grinding wheel 22131 are connected to each other in the longitudinal direction. However, in some other examples, the first grinding wheel 22121 and the second grinding wheel 22131 may partially overlap or have a certain gap in the longitudinal direction, depending on the actual grinding requirements.

[0060] In one embodiment, in the initial state, the horizontal distance between the second grinding wheel 22131 and the brake disc 1 is less than the horizontal distance between the first grinding wheel 22121 and the brake disc 1. The initial state refers to the state of the first grinding wheel 22121 and the second grinding wheel 22131 before the outer edge grinding device 221 begins grinding operations (as shown in the image). Figure 6As shown), at this time, the second grinding wheel 22131 is in a preset lifting position, so that when the outer edge grinding device 221 starts grinding, the transverse drive device 223 drives the outer edge grinding machine base 2211, thereby driving the first grinding wheel 22121 and the second grinding wheel 22131 along... Figure 6 The arrow in the image approaches the outer edge 11, causing the first grinding wheel 22121 to contact the outer edge 11 first, while the second grinding wheel 22131 does not contact the outer edge 11 temporarily.

[0061] Furthermore, such as Figures 6 to 8 As shown, the first grinding wheel 22121 and the second grinding wheel 22131 are misaligned, so that the first grinding wheel 22121 first grinds the outer edge 11 to form a first step structure A1 by moving laterally, and the second grinding wheel 22131 grinds the outer edge 11 to form a second step structure A2 that connects with the first step structure A1 by moving downward. The first grinding wheel 22121 and the second grinding wheel 22131 grind the first step structure A1 and the second step structure A2 in sequence by moving longitudinally to complete the outer edge grinding operation.

[0062] Specifically, such as Figure 6 As shown, the transverse drive device 223 drives the first grinding wheel 22121 and the second grinding wheel 22131 along... Figure 6 The arrow in the image approaches the outer edge 11, causing the first grinding wheel 22121 to perform the first grinding on the outer edge 11 to form the first step structure A1, thus presenting... Figure 7 The state shown. Next, the second grinding wheel 22131, driven by the lifting drive structure 2214, descends to a preset position determined according to the grinding amount. Simultaneously, the first grinding wheel 22121 and the second grinding wheel 22131, driven by the forward and backward drive device 222, move along... Figure 7 The second grinding wheel 22131 moves in the direction of the arrow so that it contacts the outer edge 11 for a second grinding, thereby forming... Figure 8 The second step structure A2 is shown. Then, the first grinding wheel 22121 and the second grinding wheel 22131 move along the path driven by the forward and backward drive device 222. Figure 8 Move in the direction of the arrow until the grinding operation is completed on the outer edge 11.

[0063] In one embodiment, after the first grinding wheel 22121 moves laterally to the first grinding position and forms the first stepped structure A1, the second grinding wheel 22131 descends to the second grinding position within a preset time interval to form the second stepped structure A2. In this embodiment, the preset time interval ensures that the second grinding wheel 22131 performs grinding only after the first stepped structure A1 is fully formed, thereby guaranteeing the stability of the grinding process. In some examples, the preset time interval is 2-10 seconds. For example, it can be approximately 2 seconds, 2.5 seconds, 3 seconds, 3.5 seconds, 4 seconds, 4.5 seconds, 5 seconds, 5.5 seconds, 6 seconds, 6.5 seconds, 7 seconds, 7.5 seconds, 8 seconds, 8.5 seconds, 9 seconds, 9.5 seconds, or 10 seconds, etc.

[0064] The following combination Figures 4 to 8 The process of performing peripheral grinding operations using the peripheral grinding mechanism 22 of this application is described in detail.

[0065] First, the first grinding wheel 22121 and the second grinding wheel 22131 of the outer edge grinding device 221 are driven by the transverse drive device 223 along the edge... Figure 6 The arrow in the image approaches the outer edge 11, causing the first grinding wheel 22121 to perform the first grinding on the outer edge 11 to form the first step structure A1, thus presenting... Figure 7 The state shown. Next, within a preset time interval, the second grinding wheel 22131 descends to a preset position determined according to the grinding amount under the drive of the lifting drive structure 2214. Simultaneously, the first grinding wheel 22121 and the second grinding wheel 22131 move along the path driven by the forward and backward drive device 222. Figure 7 The second grinding wheel 22131 moves in the direction of the arrow so that it contacts the outer edge 11 for a second grinding, thereby forming... Figure 8 The second step structure A2 is shown. Then, the first grinding wheel 22121 and the second grinding wheel 22131 move along the path driven by the forward and backward drive device 222. Figure 8 Move in the direction of the arrow until the outer edge is ground.

[0066] In one embodiment, such as Figure 2 and Figure 3 As shown, the multi-station brake disc grinding equipment 2 also includes a transfer mechanism 25, which is located near the outer edge grinding mechanism 22 and is used to switch the brake disc between a vertical placement state and a horizontal placement state. The horizontal placement refers to the direction of the brake disc 1's axis being perpendicular to the surface of the base 21. In this embodiment, the transfer mechanism 25 is used to transfer the brake disc 1, after the outer edge grinding operation is completed, from the outer edge processing area 211 to the toroidal processing area 212 for toroidal grinding.

[0067] Please see Figure 9The diagram shown is a structural schematic of the transfer mechanism in one embodiment of this application. Figure 9 As shown, the transfer mechanism 25 includes a transfer device 251 and a lateral moving device 252. The lateral moving device 252 is disposed on the lower side of the transfer device 251 and is used to drive the transfer device 251 to move laterally.

[0068] In one embodiment, such as Figure 9 As shown, the lateral moving device 252 includes a laterally arranged moving guide rail 2521 and a lateral moving drive unit 2522 for driving the transfer device 251 to move laterally on the moving guide rail 2521. Figure 2 In the example shown, the moving guide rail 2521 is disposed on the base 21 and extends from the outer edge machining area 211 to the inner edge machining area 214. In some examples, the lateral movement drive unit 2522 is configured as a motor with a moving lead screw connected to the transfer device 251. The motor can drive the moving lead screw to rotate, thereby causing the transfer device 251 to move laterally on the moving guide rail 2521.

[0069] In one embodiment, such as Figure 9 As shown, the transfer device 251 includes a rotating frame 2511, which is mounted on the transverse moving device 252 and can rotate around its axis in the horizontal plane.

[0070] In one embodiment, the rotating frame 2511 is configured as a frame structure, with platforms on both its upper and lower sides, and multiple guide rods connecting the upper and lower platforms. In one implementation, a rotating shaft may be provided at the center of the lower platform of the rotating frame 2511. The rotating shaft may be connected to a rotation drive unit, which may be configured, for example, as a rotary motor, to drive the rotating shaft to rotate, thereby causing the rotating frame 2511 to rotate around the rotating shaft. Figure 9 The direction indicated by the dashed arrow is rotation. It should be noted that... Figure 9 The rotation direction of the rotating frame 2511 is counterclockwise, but this should not be construed as a limitation of this application. In practical applications, the rotation direction of the rotating frame 2511 can be clockwise and / or counterclockwise. In some examples, the rotation angle of the rotating frame 2511 is 180°. In some examples, the material of the rotating frame 2511 can be configured as a high-strength material such as cast iron or carbon structural steel to provide robust stability.

[0071] In one embodiment, such as Figure 9 As shown, the transfer device 251 includes a clamping assembly 2512, which is disposed on the rotating frame 2511 and is used to clamp the brake disc 1 and drive the brake disc 1 to move up and down on the rotating frame 2511. Please refer to... Figure 10 This application is displayed as such. Figure 9A schematic diagram of the clamping assembly in the illustrated embodiment. Figure 10 As shown, the clamping assembly 2512 includes a lifting seat 2513 disposed on the rotating frame 2511. In some examples, the lifting seat 2513 may be connected to a lifting drive motor, which can be used to drive the lifting seat 2513 to move up and down along the guide rod of the rotating frame 2511, thereby causing the brake disc 1 clamped by the clamping assembly 2512 to move up and down.

[0072] In one embodiment, such as Figure 10 As shown, the clamping assembly 2512 further includes a flipping unit 2514 and a clamping unit 2515. The flipping unit 2514 is disposed on the lifting seat 2513 and is used to switch the brake disc between a vertical placement state and a horizontal placement state. The clamping unit 2515 is connected to the flipping unit 2514 and is openable and closable, clamping the brake disc 1 along opposite sides of its outer edge 11. Specifically, the flipping unit 2514 can drive the clamping unit 2515 along... Figure 10 The arrow in the diagram rotates between the solid line position (horizontal placement of the brake disc) and the dashed line position (vertical placement of the brake disc) to adapt to the placement of the brake disc 1 in various mechanisms or devices before and after transport.

[0073] In one embodiment, such as Figure 10 As shown, the flipping unit 2514 includes a flipping part 25141 and a flipping drive part 25142. The flipping part 25141 is connected to the clamping unit 2515, and the flipping drive part 25142 is disposed on the lifting seat 2513 for driving the clamping unit 2515 to flip around the flipping part 25141. In this embodiment, the flipping part 25141 includes a flipping shaft connected to the clamping unit 2515. The flipping drive part 25142 drives the flipping part 25141 to flip, so that the clamping unit 2515 can clamp the brake disc 1 and move along the flipping shaft, thereby realizing the switching between the vertical placement state and the horizontal placement state of the brake disc 1. In some examples, the flipping drive part 25142 is configured as a rotary motor.

[0074] In one embodiment, such as Figure 10As shown, the clamping unit 2515 includes a clamping seat 25151, a first jaw 25152, and a second jaw 25153. The clamping seat 25151 is connected to a flipping part 25141. The first jaw 25152 and the second jaw 25153 are disposed on opposite sides of the clamping seat 25151 for opening and closing to clamp the outer edge 11 of the brake disc 1. In this embodiment, the clamping unit 2515 may further include a jaw driving structure for driving at least one of the first jaw 25152 and the second jaw 25153 to move to adjust the clamping distance between the two jaws. In some examples, the jaw driving structure may be configured to include a lead screw and a drive source. The lead screw is disposed along the length direction of the clamping seat 25151 and associated with at least one of the first jaw 25152 and the second jaw 25153. The drive source is used to drive the lead screw to rotate so that the associated at least one jaw moves along the length direction of the clamping seat 25151. In some other examples, the gripper drive structure may be configured to include a bidirectional lead screw and a drive source. The bidirectional lead screw is arranged along the length direction of the gripper seat 25151 and associated with the first gripper 25152 and the second gripper 25153. The drive source is used to drive the bidirectional lead screw to rotate so that the first gripper 25152 and the second gripper 25153 move towards each other or away from each other along the length direction of the gripper seat 25151. The gripper drive structure is not limited to this and may also employ a telescopic rod and a drive cylinder or a drive hydraulic cylinder, etc.

[0075] In one embodiment, the first gripper 25152 or the second gripper 25153 has an arc-shaped groove on the side facing the brake disc. For example, see the documentation for the second gripper 25153. Figure 11 The image shown is a schematic diagram of the second gripper holding the brake disc in one embodiment of this application. Figure 11 As shown, the arc of the arc-shaped groove 25154 conforms to the outer edge 11 of the brake disc 1 so that the brake disc 1 can engage with the arc-shaped groove 25154. In this embodiment, the arc-shaped groove 25154 provides a geometric fit with the outer edge 11 of the brake disc 1, allowing the brake disc 1 to be automatically guided into place when inserted into the clamping unit 2515; furthermore, the arc-shaped structure of the arc-shaped groove 25154 can circumferentially cover the brake disc, thereby effectively preventing the brake disc from sliding or shifting during transport. Furthermore, the arc-shaped groove 25154 allows the brake disc 1 to form surface contact with each clamping jaw, dispersing the clamping force and thus avoiding clamping damage to the brake disc 1.

[0076] In one embodiment, such as Figure 11As shown, the clamping length L of the arc-shaped groove 25154 is greater than the radius of the brake disc 1. The clamping length refers to the projected distance of the first gripper 25152 or the second gripper 25153 in the longitudinal direction. In this embodiment, setting the clamping length L to be greater than the radius of the brake disc 1 increases the coverage length of the arc-shaped groove 25154 over the outer edge 11, thereby ensuring stable clamping of the brake disc 1.

[0077] In one embodiment, such as Figure 10 As shown, the clamping assembly 2512 further includes a longitudinal moving device 2516 for driving the clamping unit 2515 to move longitudinally relative to the lifting seat 2513 to transfer the brake disc 1 to the target position. The target position refers to a spatial location with a specific technological purpose reached after the transfer mechanism 25 transfers the brake disc. For example, the target position may be the location of the aforementioned outer edge grinding mechanism 22, or the toroidal grinding mechanism 23, or the inner edge grinding mechanism 24, or the location of the loading or unloading conveyor described later. Of course, in this embodiment, the longitudinal moving device 2516 can also be used to remove the brake disc 1 from a mechanism or device for transfer to the target position.

[0078] In one embodiment, such as Figure 10 As shown, the longitudinal moving device 2516 includes a telescopic rod 25161, a fixing member 25162, and a longitudinal moving drive unit (not shown). The telescopic rod 25161 extends longitudinally through the lifting seat 2513, the fixing member 25162 is disposed at the end of the telescopic rod 25161, and the longitudinal moving drive unit is used to drive the telescopic rod 25161 to perform telescopic movement to drive the clamping unit 2515 to move longitudinally. Figure 10 In the example shown, the fixing member 25162 is configured as a fixing plate connected to the end of the telescopic rod 25161, and the aforementioned flipping part 25141 is disposed at the lower end of the fixing plate. In some examples, the longitudinal movement drive unit is connected to the telescopic rod 25161. When the telescopic rod 25161 is extended, it drives the fixing member 25162 to extend, thereby driving the clamping unit 2515 to extend relative to the lifting seat 2513. When the telescopic rod 25161 is retracted, it drives the fixing member 25162 to retract, thereby driving the clamping unit 2515 to retract relative to the lifting seat 2513.

[0079] In one embodiment, such as Figure 2 and Figure 3As shown, the loading and unloading area 213 is equipped with a loading conveyor 26 and an unloading conveyor 27. The loading conveyor 26 is used to load the brake disc 1 to be ground, and the unloading conveyor 27 is arranged in parallel with the loading conveyor 26 and is used to unload the brake disc 1 after the inner edge grinding operation is completed. In this embodiment, the transfer mechanism 25 is also used to transfer the brake disc to be ground from the loading conveyor 26 to the outer edge grinding mechanism 22, and to transfer the brake disc after the inner edge grinding operation is completed from the inner edge grinding mechanism 24 to the unloading conveyor 27.

[0080] The loading conveyor 26 and the unloading conveyor 27 can have the same configuration. Taking the loading conveyor 26 as an example, in one embodiment, the loading conveyor 26 includes a support frame and a conveyor belt mounted on the support frame for loading the brake disc. A drive motor is provided on the lower side of the support frame, and the drive motor drives the conveyor belt to roll on the support frame. When the brake disc is placed near the end of the conveyor belt, the conveyor belt can drive the brake disc to move to the transfer mechanism 25. It should be noted that the conveying direction of the unloading conveyor 27 is opposite to that of the loading conveyor 26; it conveys the brake disc at the transfer mechanism 25 to a position away from the base 21.

[0081] Of course, in some other embodiments, the feeding conveyor 26 and the unloading conveyor 27 may not be provided, and the feeding and unloading operations can be performed manually or by a robot at the base 21.

[0082] The following combination Figures 9 to 11 The process of transferring the brake disc in each processing area using the transfer mechanism 25 of this application is described in detail.

[0083] First, the lifting drive motor drives the lifting seat 2513 to move downwards along the guide rod of the rotating frame 2511. The rotation drive unit drives the rotating frame 2511 to rotate so that the clamping unit 2515 faces the loading / unloading area 213. The flipping drive unit 25142 drives the flipping unit 25141 to flip so that the clamping unit 2515 is parallel to the base 21, so as to clamp the horizontally placed brake disc to be ground, which is fed from the loading conveyor 26. Specifically, when clamping the brake disc on the loading conveyor 26, the longitudinal movement drive unit of the longitudinal movement device 2516 drives the telescopic rod 25161 to extend, causing the clamping unit 2515 to extend relative to the lifting seat 2513. The jaw drive structure drives the first jaw 25152 and the second jaw 25153 to open, so as to clamp the brake disc through the arc-shaped grooves 25154 on the two jaws. After clamping the brake disc, the longitudinal movement device 2516 drives the clamping unit 2515 to retract to its original position. Then, the lifting drive motor can be used to drive the lifting seat 2513 to move upward along the guide rod of the rotating frame 2511. The rotation drive unit drives the rotating frame 2511 to rotate 180° so that the clamping unit 2515 faces the outer edge processing area 211. The lateral movement device 252 drives the transfer device 251 to move laterally on the moving guide rail 2521 to the corresponding outer edge grinding device 221. The flipping drive unit 25142 drives the flipping part 25141 to flip so that the clamping unit 2515 is perpendicular to the base 21, so as to switch the brake disc to the vertical placement state. Next, the longitudinal movement device 2516 drives the clamping unit 2515 to extend, so as to transfer the brake disc to the outer edge grinding mechanism 22 for outer edge grinding operation.

[0084] Similarly, the transfer mechanism 25 can selectively perform the above operations according to actual transfer needs to transfer the brake disc that has completed the outer edge grinding operation and the toroidal grinding operation to the inner edge processing area 214 for the inner edge grinding operation, and to transfer the brake disc that has completed the inner edge grinding operation to the unloading conveyor 27 for the unloading operation.

[0085] In one embodiment, the toroidal grinding mechanism 23 includes three toroidal grinding devices and a rotating mechanism 234. The three toroidal grinding devices are used to grind the toroidal surfaces on both sides of the vertically placed brake disc, which have already undergone outer edge grinding. The rotating mechanism 234 is disposed between the three toroidal grinding devices and is used to transfer the brake disc between the three toroidal grinding devices. It should be noted that, for ease of description and explanation, as... Figure 2 and Figure 3 As shown, in subsequent embodiments, the three annular grinding devices are referred to sequentially in a counterclockwise direction as the first annular grinding device 231, the second annular grinding device 232, and the third annular grinding device 233.

[0086] In one embodiment, the grinding time of the first toroidal grinding device 231, or the second toroidal grinding device 232, or the third toroidal grinding device 233 is one-third of the grinding time of the outer edge grinding device 221. For example, if the outer edge grinding device 221 performs outer edge grinding for 60 seconds, then the first toroidal grinding device 231, the second toroidal grinding device 232, and the third toroidal grinding device 233 each perform toroidal grinding for 20 seconds. In other words, the 60 seconds required for the outer edge grinding operation is exactly equal to the total time of 20 seconds for each of the three annular grinding devices. By using the rotating mechanism 234 to drive the brake disc to rotate between the outer edge grinding device 221 and the first annular grinding device 231, the second annular grinding device 232, and the third annular grinding device 233, the brake disc can complete the annular grinding operation in parallel while completing the outer edge grinding operation, which helps to improve the efficiency of the overall processing cycle and realize the continuous automated grinding of the brake disc.

[0087] In one embodiment, the grinding amount of the first annular grinding device 231, or the second annular grinding device 232, or the third annular grinding device 233 on the brake disc is 1 / 3 of the total annular grinding amount. For example, when the total annular grinding amount on the brake disc 1 is 0.3 mm after completing the annular grinding operation, the grinding amount of any of the above-mentioned annular grinding devices on the brake disc is 0.1 mm. In this way, each annular grinding device only needs to complete 1 / 3 of the total grinding amount, which helps to achieve the above-mentioned processing cycle while reducing the workload of each annular grinding device, thereby extending the service life of each annular grinding device.

[0088] In one embodiment, a first annular grinding device 231, a second annular grinding device 232, and a third annular grinding device 233 are arranged in a ring around the annular machining area 212. Figure 2 and Figure 3 In the example shown, the first toroidal grinding device 231, the second toroidal grinding device 232, and the third toroidal grinding device 233 are arranged in a fan shape around the rotating mechanism 234. The included angles between the second toroidal grinding device 232 and the first toroidal grinding device 231, and between the second toroidal grinding device 232 and the third toroidal grinding device 233, are both 90°. Further, the included angle between the outer edge grinding device 221 and each adjacent grinding device among the three toroidal grinding devices is 90°. In this embodiment, the included angles between each grinding device are 90° to form a cross-shaped layout, thereby facilitating the cooperation between the grinding devices and the rotating mechanism 234, realizing the automated rotation and alignment of the brake disc.

[0089] The first annular grinding device 231, the second annular grinding device 232, and the third annular grinding device 233 have the same configuration. The structure of each annular grinding device will be described below using the first annular grinding device 231 as an example. Please refer to... Figure 12 and Figure 13 The figures shown are schematic diagrams of the structure of the first annular grinding device in different embodiments of this application. Figure 12 and Figure 13 As shown, the annular grinding mechanism 23 further includes a first driving device 235 and a second driving device 236. The first driving device 235 is positioned on a base 21 to drive the first annular grinding device 231 to approach the rotating mechanism 234. The second driving device 236 is positioned above the first driving device 235 and is used to drive the first annular grinding device 231 to approach the annular surface 13 of the brake disc for grinding. The specific structures of the first driving device 235 and the second driving device 236 can be found in the description of the forward / backward driving device 222 and the lateral driving device 223 in the foregoing embodiments, and will not be repeated here.

[0090] In one embodiment, such as Figure 12 and Figure 13 As shown, the first annular grinding device 231 includes a first annular grinding spindle 2311 and a second annular grinding spindle 2312. The first annular grinding spindle 2311 and the second annular grinding spindle 2312 are arranged side by side above the second drive device 236 and can move towards each other along the second drive device 236 to grind the annular surfaces 13 on opposite sides of the brake disc respectively. Figure 12 and Figure 13 In the example shown, both the first toroidal grinding spindle 2311 and the second toroidal grinding spindle 2312 have a grinding wheel. For ease of description, the grinding wheel of the first toroidal grinding spindle 2311 is referred to as the first toroidal grinding wheel 23111, and the grinding wheel of the second toroidal grinding spindle 2312 is referred to as the second toroidal grinding wheel 23121. The first toroidal grinding wheel 23111 and the second toroidal grinding wheel 23121 will not be described again in the following references.

[0091] Specifically, in this embodiment, the brake disc is rotated by the rotating mechanism 234 to a position between the first annular grinding wheel 23111 and the second annular grinding wheel 23121. The two annular grinding wheels move towards each other a certain distance under the drive of the second driving device 236 (this distance is determined according to the grinding amount). Then, the two annular grinding wheels approach the rotating mechanism 234 under the drive of the first driving device 235, thereby realizing the annular grinding operation on the brake disc 1.

[0092] exist Figure 12In the illustrated embodiment, both the first toroidal grinding wheel 23111 and the second toroidal grinding wheel 23121 face the rotating mechanism 234 to grind the brake disc through the rims of the first toroidal grinding wheel 23111 and the second toroidal grinding wheel 23121. Figure 13 In the illustrated embodiment, the first toroidal grinding wheel 23111 and the second toroidal grinding wheel 23121 are arranged opposite to each other to grind the brake disc using the toroidal surfaces of the first toroidal grinding wheel 23111 and the second toroidal grinding wheel 23121. It should be noted that, in this application... Figure 2 and Figure 3 In the illustrated embodiment, the annular machining area 212 of the brake disc multi-station grinding machine 2 is configured... Figure 12 The toroidal grinding apparatus shown is illustrated as an example and should not be construed as a limitation of this application. For instance, in practical applications, when the grinding amount is large, the toroidal machining area 212 can be configured with... Figure 13 The toroidal grinding device shown.

[0093] Please see Figure 14 The image shown is a partially enlarged schematic diagram of the first annular grinding device in one embodiment of this application. Figure 14 As shown, a liftable thickness detection device 237 for detecting the thickness of the brake disc 1 to determine the feed rate is provided between the first annular grinding spindle 2311 and the second annular grinding spindle 2312. Figure 14 In the illustrated embodiment, the thickness detection device 237 is configured to include a lifting mechanism 2371 and a detection head assembly 2372. The detection head assembly 2372 is used to detect the thickness of the brake disc 1. The lifting mechanism 2371 is used to drive the detection head assembly 2372 to move up and down vertically, so that the detection head assembly 2372 descends to both sides of the brake disc 1 when detection is needed, and rises to a position that does not interfere with the rotation of the rotating mechanism 234 and the grinding operation when detection is not needed. In some examples, the lifting mechanism 2371 may be configured to achieve the lifting movement by means of electric screw lifting, cylinder drive, or servo motor drive.

[0094] In one embodiment, such as Figure 14 As shown, two detection head assemblies 2372 are configured, respectively located on opposite sides of the annular surface of the brake disc 1. Figure 14 In the example shown, the detection head assembly is configured to include a guide bracket 23721, a detection head 23722 disposed at the bottom of the guide bracket, and a bracket drive structure 23723 for driving the guide bracket 23721 toward or away from the annular surface. In some examples, the detection head 23722 may be configured as a contact sensor, and when the detection heads 23722 on the left and right sides contact the annular surface, the distance between the two detection heads 23722 is the thickness of the brake disc 1.

[0095] Please see Figure 15 The diagram shown is a structural schematic of a rotating mechanism according to an embodiment of this application. Figure 15 As shown, the rotating mechanism 234 includes a rotating seat 2341, a rotating support 2342, and a shaft 2343.

[0096] In one embodiment, the rotating base 2341 is disposed on the base 21 and is used to support the vertically placed brake disc 1, having a rotating platform 23411 on it. In this embodiment, the rotating base 2341 is fixedly disposed on the base 21, and may be integrally formed and connected to the base 21, for example. In some examples, to achieve stable support for components such as the brake disc 1 and the rotating bracket 2342, the rotating base 2341 may be configured to be made of materials such as cast iron or stainless steel. Figure 15 In the example shown, the swivel base 2341 is configured as a cylinder to minimize its footprint.

[0097] In one embodiment, the rotating table 23411 can rotate relative to the rotating base 2341 to drive the rotating support 2342 thereon to rotate, thereby causing the brake disc 1 to rotate between the outer edge grinding device 221, the first annular grinding device 231, the second annular grinding device 232, and the third annular grinding device 233. In some examples, the rotating table 23411 is equipped with an angle encoder to ensure that its rotation angle is 90° each time. In some examples, the rotating table 23411 is equipped with a positioning device so that it can stop rotating the brake disc 1 after it reaches the grinding position, thereby fixing the brake disc 1 in the grinding position for subsequent grinding operations using the outer edge grinding device 221 or any of the annular grinding devices.

[0098] Please see Figure 16 This application is displayed as such. Figure 15 A schematic diagram of the rotating bracket in the illustrated embodiment. Figure 15 and Figure 16As shown, the rotating support 2342 includes four support arms 23421 disposed on the rotating table 23411, with an included angle of 90° between each adjacent support arm, used to drive the brake disc to rotate between the outer edge grinding device 221, the first annular grinding device 231, the second annular grinding device 232, and the third annular grinding device 233. In this embodiment, the four support arms 23421 are centrally symmetrically arranged on the rotating table 23411 along the axis of the rotating seat 2341. Specifically, under the support of a support arm 23421 on the rotating bracket 2342, the brake disc 1 completes the outer edge grinding operation using the outer edge grinding device 221. Then, the rotating bracket 2342 rotates 90° counterclockwise under the drive of the rotating table 23411, rotating the brake disc that has completed the outer edge grinding operation to the first annular grinding device 231 to start the annular grinding operation. Subsequently, one-third of the annular grinding operation is completed at the first annular grinding device 231, the second annular grinding device 232, and the third annular grinding device 233 in sequence, and then it rotates back to the outer edge grinding device 221.

[0099] In one embodiment, such as Figure 15 and Figure 16 As shown, a shaft 2343 is vertically disposed at one end of each of the support arms 23421, and has a claw portion 23431 that can be opened and closed to fix the inner edge of the brake disc 1. In one example, the claw portion 23431 is configured as a three-claw structure, which is equidistantly arranged around the circumference of the shaft 2343. The end of the claw portion used to fix the inner edge of the brake disc has a clamping surface that fits against the inner edge. The clamping surface may be covered with a rubber sheet to enhance the clamping stability of the brake disc. In some examples, the shaft 2343 may be configured as a hollow structure, with an opening and closing drive structure inside for driving the claw portion 23431 to open and close, so as to drive the claw portion 23431 to retract towards the axis to fix the inner edge of the brake disc.

[0100] In one embodiment, such as Figure 16 As shown, the rotating mechanism 234 further includes a rotating drive device 2344, which is used to drive the brake disc 1 to rotate around its center. Figure 16 In the illustrated embodiment, the rotary drive device 2344 is disposed on the back side of the support arm 23421 (the side opposite to the side where the shaft 2343 is disposed). For an example of one rotary drive device 2344, please refer to [link to example document]. Figure 17 ,in, Figure 17 This application is displayed. Figure 16 A schematic diagram of the rotary drive device in the embodiment. Figure 17As shown, the rotary drive device 2344 includes a rotary drive motor 23441 disposed at the other end of the support arm 23421, and a conveyor belt 23443 connecting the output shaft 23442 of the rotary drive motor 23441 and the shaft body 2343. The rotary drive motor 23441 transmits power to the shaft body 2343 through the conveyor belt 23443, thereby causing the shaft body 2343 to drive the brake disc to rotate.

[0101] The following combination Figures 12 to 17 The process of performing toroidal grinding operations using the toroidal grinding mechanism 23 of this application is described in detail.

[0102] The aforementioned transfer mechanism 24 can transfer the brake disc on the feeding conveyor 26 to the rotating mechanism 234. Specifically, the claws 23431 of the rotating mechanism 234 retract towards the axis to allow the transfer mechanism 24 to fit the inner edge of the brake disc 1. Then, the claws 23431 open to fix the brake disc. The brake disc rotates under the drive of the rotating drive device 2344 to facilitate the outer edge grinding operation using the outer edge grinding device 221. Subsequently, the rotating bracket 2342 rotates 90° counterclockwise under the drive of the rotating table 23411, rotating the brake disc that has completed the outer edge grinding operation to the first annular grinding device 231. Then, the thickness detection device 237 descends to both sides of the brake disc 1 to detect the thickness of the brake disc to determine the feed rate. After the detection is completed, the thickness detection device 237 rises to a position that does not interfere with the grinding operation.

[0103] The first toroidal grinding wheel 23111 and the second toroidal grinding wheel 23121 move towards each other under the drive of the second drive device 236, and then approach the rotating mechanism 234 under the drive of the first drive device 235, thereby performing one-third of the overall toroidal grinding operation on the brake disc 1. Afterwards, the rotating support 2342 rotates 90° counterclockwise again under the drive of the rotating table 23411 to rotate the brake disc to the second toroidal grinding device 232. After completing two-thirds of the overall toroidal grinding operation, the rotating support 2342 rotates 90° counterclockwise again to rotate the brake disc to the third toroidal grinding device 233 to complete the remaining one-third of the toroidal grinding operation. After completing the above toroidal grinding operation, the rotating support 2342 drives the brake disc, which has completed the toroidal grinding operation, to rotate 90° counterclockwise again to rotate it back to the outer edge grinding device 221. Subsequently, the aforementioned transfer mechanism 24 transfers the brake disc to the inner edge processing area 214 of the brake disc multi-station grinding equipment 2 for inner edge grinding operations.

[0104] Please see Figure 18 The diagram shows a schematic representation of the inner edge grinding mechanism in one embodiment of this application. Figure 18As shown, the inner edge grinding mechanism 24 includes a chuck structure 241, which is disposed in the inner edge processing area 214 and is used to receive the brake disc held by the transfer mechanism 24.

[0105] In one embodiment, such as Figure 18 As shown, the chuck structure 241 includes a base 2411 and a jaw 2412. The jaw 2412 is disposed on the base 2411 and is used to openably clamp the outer edge of the horizontally placed brake disc. As mentioned above, the brake disc completes the outer edge grinding operation and the toroidal surface grinding operation respectively under the operation of the outer edge grinding device 221, the first toroidal surface grinding device 231, the second toroidal surface grinding device 232, and the third toroidal surface grinding device 233. Driven by the rotating mechanism 234, it rotates back to the outer edge grinding device 221, and then is transferred to the jaw 2412 by the transfer mechanism 24. The jaw 2412 clamps the outer edge for the inner edge grinding operation.

[0106] In one embodiment, the base 2411 supports the chuck 2412 and the brake disc. In some examples, it may be made of stainless steel, cast iron, or other materials to ensure support stability. In some examples, the base 2411 is configured as a cylindrical structure mounted on the base 21, with a rotating shaft at its center, so that the chuck 2412 can clamp the brake disc and rotate it around the rotating shaft. In this way, the grinding efficiency of the inner edge of the brake disc can be improved by grinding the rotating brake disc.

[0107] In one embodiment, the jaws 2412 are configured as a three-jaw stepped structure, which can retract inward relative to the rotation axis to clamp the brake disc or open outward to release the brake disc. Further, the angle between adjacent jaws is 120°, thereby providing a uniform clamping force to the brake disc. In some examples, the stepped structure can be layered to accommodate brake discs of different diameters. For example, the upper step of the jaws 2412 is used to clamp brake discs with larger diameters, and the lower step is used to clamp brake discs with smaller diameters, thereby improving the clamping versatility of the chuck structure 241. In some examples, the side of the jaws 2412 used to clamp the outer edge of the brake disc can be covered with a rubber sheet to enhance the clamping stability of the brake disc.

[0108] In one embodiment, the chuck structure 241 further includes an opening and closing drive unit for driving the jaws 2412 to perform opening and closing movements to clamp or release the brake disc. The opening and closing drive unit can be configured to drive the jaws 2412 in a helical drive mode or a linear drive mode to push them to retract inward or open outward to achieve clamping or releasing of the brake disc.

[0109] In one embodiment, such as Figure 18As shown, the inner edge grinding mechanism 24 also includes an inner edge grinding device 242, which is used to perform inner edge grinding on the horizontally placed brake disc that has completed the toroidal grinding operation.

[0110] In one embodiment, such as Figure 18 As shown, the inner edge grinding mechanism 24 also includes an inner edge grinding drive device 243 disposed at the distal end of the chuck structure 241. The inner edge grinding drive device 243 is used to drive the inner edge grinding device 242 to move toward the chuck structure 241 to perform inner edge grinding on the brake disc. In some examples, the inner edge grinding drive device 243 is disposed on the base 21 and includes an inner edge grinding longitudinal guide rail disposed on the base 21, an inner edge grinding slider disposed at the bottom of the inner edge grinding device 242, and an inner edge grinding drive motor for driving the inner edge grinding slider to move longitudinally on the inner edge grinding longitudinal guide rail to approach or move away from the chuck structure 241. Of course, the inner edge grinding drive device 243 can also be configured in other driving forms, such as chain conveyor or conveyor belt conveyor, and this application does not impose any limitations on this.

[0111] In one embodiment, such as Figure 18 As shown, the inner edge grinding device 242 includes an inner edge grinding machine base 2421 and a liftable inner edge grinding spindle 2422. The inner edge grinding machine base 2421 is disposed above the inner edge grinding drive device 243, and the inner edge grinding spindle 2422 is located on the inner edge grinding machine base 2421 and faces downward. Specifically, driven by the inner edge grinding machine base 2421, the inner edge grinding spindle 2422 approaches the brake disc held by the chuck structure 241 through the inner edge grinding drive device 243. In some examples, the inner edge grinding machine base 2421 serves as a carrier for mounting the inner edge grinding spindle 2422, and its specific form can be a beam, column, plate frame, bracket, etc.

[0112] In one embodiment, such as Figure 18 As shown, an inner edge grinding wheel 24221 is disposed below the inner edge grinding spindle 2422. In some examples, the inner edge grinding wheel 24221 may be connected to a drive structure that can be used to drive the inner edge grinding wheel 24221 to rotate at high speed in order to perform the inner edge grinding operation.

[0113] In one embodiment, such as Figure 18 As shown, the inner edge grinding device 242 also includes a lifting drive mechanism 2423, which is disposed on the inner edge grinding machine base 2421 and is used to drive the inner edge grinding wheel 24221 of the inner edge grinding spindle 2422 to extend into the inner edge of the brake disc, so as to perform grinding through the rim of the inner edge grinding wheel 24221. Figure 18In the example shown, the lifting drive mechanism 2423 includes a vertical guide rail disposed on the inner edge grinding machine base 2421 in a vertical direction, a vertical slider disposed on the inner edge grinding spindle 2422 and connected to the vertical guide rail, and a drive cylinder disposed above the inner edge grinding machine base 2421 for driving the vertical slider to slide on the vertical guide rail to drive the inner edge grinding spindle 2422 to perform lifting and lowering movements.

[0114] In one embodiment, the rim thickness of the inner edge grinding wheel 24221 is less than the thickness of the brake disc. It should be understood that, in this embodiment, the thinner inner edge grinding wheel 24221 helps to achieve precise guidance of the grinding position, thereby avoiding unnecessary grinding on the brake disc and thus improving grinding accuracy.

[0115] In one embodiment, the grinding time of the inner edge grinding device 242 on the brake disc is less than the grinding time of the outer edge grinding device 221 on the brake disc. As mentioned above, the grinding time of the first annular grinding device 231, or the second annular grinding device 232, or the third annular grinding device 233 is 1 / 3 of the grinding time of the outer edge grinding device 221. Based on this, in this embodiment, the shorter inner edge grinding time can speed up the overall processing cycle of the equipment, thereby further improving the overall processing efficiency of the machine.

[0116] In one embodiment, such as Figure 18 As shown, the inner edge grinding mechanism 24 also includes a measuring device 244, which is used to measure the inner edge of the brake disc before grinding to determine the grinding amount, and to determine whether the brake disc meets the processing requirements after grinding. In some examples, the measuring device 244 measures the distance from the inner edge to the outer edge of the brake disc and compares the distance value with a target value. In some implementations, the grinding amount can be calculated by the difference between the distance value and the target value. In some examples, if the distance value is less than the target value, the ground brake disc can be determined to be unqualified and can be subsequently recycled, for example; if the distance value is equal to the target value, the ground brake disc can be determined to be qualified and can be subsequently unloaded, for example; if the distance value is greater than the target value, the inner edge grinding device 242 can be reused for secondary grinding until the grinding is qualified.

[0117] In one embodiment, the measuring device 244 is vertically and flexibly mounted on the side wall of the inner edge grinding spindle 2422. See also... Figure 19 and Figure 20 ,in, Figure 19 This diagram illustrates the state of the measuring device during the inner edge grinding operation of the brake disc in one embodiment of this application. Figure 20 This diagram illustrates the state of the measuring device when the brake disc completes inner edge grinding in one embodiment of this application. Figure 19As shown, during internal edge grinding, the measuring device 244 rises to a position that does not interfere with the grinding operation of the internal edge grinding wheel 24221. Figure 20 As shown, after the inner edge grinding operation is completed, the inner edge grinding wheel 24221 will rise to a position that does not interfere with the operation of the measuring device 244 under the drive of the lifting drive mechanism 2423. Further, the measuring device 244 will descend to the grinding position that contacts the inner edge in order to perform the measurement operation.

[0118] In one embodiment, such as Figure 20 As shown, the measuring device 244 includes a first lifting structure 2441, a second lifting structure 2442, and a measuring block 2443. The first lifting structure 2441 is fixedly mounted on the side wall of the inner edge grinding spindle 2422, the second lifting structure 2442 is slidably mounted on the first lifting structure 2441, and the measuring block 2443 is fixedly mounted at the end of the second lifting structure 2442. Figure 20 In the example shown, the first lifting structure 2441 is configured as a plate-like structure located on the side wall of the inner edge grinding spindle 2422. The plate-like structure has a guide rail arranged vertically. Correspondingly, the second lifting structure 2442 is configured as another plate-like structure that can slide along the guide rail. In some examples, to enable a more stable connection between the first lifting structure 2441 and the second lifting structure 2442, a guide rod can be provided between the first lifting structure 2441 and the measuring block 2443. The guide rod can be retracted into the first lifting structure 2441 as the second lifting structure 2441 rises along the guide rail, and can extend out of the first lifting structure 2441 as the second lifting structure 2441 descends along the guide rail.

[0119] Please see Figure 21 The diagram shows a schematic representation of the measuring block in one embodiment of this application. Figure 21As shown, the measuring block 2443 is provided with a first measuring part 24431 and a second measuring part 24432. In this embodiment, the first measuring part 24431 and the second measuring part 24432 are perpendicular to each other. Specifically, the first measuring part 24431 is arranged in the horizontal direction and is used to detect the grinding condition of the grinding surface of the inner edge of the brake disc in the vertical direction; the second measuring part 24432 is arranged in the vertical direction and is used to detect the grinding condition of the grinding surface of the inner edge of the brake disc in the horizontal direction. In some examples, the first measuring part 24431 and the second measuring part 24432 are configured as contact measuring probes to perform measurements by contacting the grinding surface of the inner edge of the brake disc. In this example, the first measuring part 24431 and the second measuring part 24432 may be configured as contact sensors. In other examples, the first measuring part 24431 and the second measuring part 24432 are configured as non-contact measuring probes, such as laser sensors, to measure the grinding surface by emitting a laser beam.

[0120] It should be understood that the debris generated during the grinding process will adhere to the surface of the brake disc. Therefore, in one embodiment, the inner edge grinding mechanism 24 further includes a cleaning device (not shown) for cleaning the brake disc after determining that it meets the processing requirements. In one implementation, the cleaning device includes a spraying structure and a drying structure. The spraying structure is used to clean the qualified brake disc, and the drying structure is used to dry the cleaned brake disc. In some examples, the spraying structure is used to spray a liquid onto the surface of the brake disc, which can both cool the brake disc and clean it. In some examples, the drying structure may, for example, spray high-pressure gas onto the surface of the brake disc to remove residual grinding debris and the liquid. In other implementations, the cleaning device further includes a rotating brush head for brushing the surface of the brake disc to further remove grinding debris adhering to the brake disc surface.

[0121] Please see Figure 22 and combined Figure 2 and Figure 3 ,in, Figure 22 The diagram shown is a structural schematic of a grinding wheel dressing device in one embodiment of this application. Figure 2 , Figure 3 as well as Figure 22 As shown, the inner edge grinding mechanism 24 also includes a grinding wheel dressing device 245 disposed around the chuck structure 241. In this embodiment, the grinding wheel dressing device 245 is used to dress the inner edge grinding wheel 24221 to avoid wear or dulling of the grinding wheel after long-term inner edge grinding operations, thereby ensuring grinding accuracy.

[0122] In one embodiment, such as Figure 22As shown, the grinding wheel dressing device 245 includes a grinding wheel dressing assembly 2451, a dressing drive structure 2452, and a support base 2453. The grinding wheel dressing assembly 2451 is used to dress the rim of the inner edge grinding wheel 24221. The dressing drive structure 2452 is located below the grinding wheel dressing assembly 2451 and is used to drive the grinding wheel dressing assembly 2451 towards the inner edge grinding wheel 24221. The support base 2453 is located below the dressing drive structure 2452 to allow the grinding wheel dressing assembly 2451 to reach a preset dressing height. The preset dressing height refers to the height of the dressing surface of the grinding wheel dressing assembly 2451 relative to the base 21 when dressing the rim of the inner edge grinding wheel 24221. This height ensures that the grinding wheel dressing assembly 2451 can contact the rim of the grinding wheel for dressing without interfering with the brake disc or chuck structure 241.

[0123] In one embodiment, such as Figure 22 As shown, the support base 2453 serves as a support structure for the grinding wheel dressing assembly 2451 and the dressing drive structure 2452. In some examples, its bottom end can be fixedly connected to the base 21 via screws or other means. In some examples, the height of the support base 2453 is fixed; in practical applications, the installation height of the support base 2453 can be determined in advance according to the preset dressing height. In other examples, the height of the support base 2453 is adjustable; in practical applications, the specific dressing height can be adjusted manually or automatically. In this example, a locking structure can be provided on the support base 2453. When the support base 2453 is adjusted to the required dressing height, the locking structure can lock the support base 2453 to the corresponding position.

[0124] In one embodiment, the grinding drive structure 2452 is configured to include a grinding drive guide rail and a grinding drive motor. The grinding drive guide rail is disposed above the support base 2453. The grinding drive motor is used to drive the grinding wheel grinding assembly 2451 to move toward or away from the inner edge grinding wheel 24221, so that the grinding wheel grinding assembly 2451 performs grinding operations when it moves toward the inner edge grinding wheel 24221 and contacts the wheel rim, and retracts in the opposite direction to a position that does not interfere with the inner edge grinding operation after grinding is completed.

[0125] In one embodiment, such as Figure 22As shown, the grinding wheel dressing assembly 2451 is positioned towards the inner edge grinding wheel 24221 and includes a tool setting detector 24511 and a grinding stone 24512. The tool setting detector 24511 can move towards the inner edge grinding wheel 24221 to determine whether the inner edge grinding wheel 24221 needs dressing. The grinding stone 24512 is positioned side by side with the tool setting detector 24511 and is used to dress the inner edge grinding wheel 24221. Specifically, before dressing, the tool setting detector 24511 first moves to a position close to the inner edge grinding wheel 24221. After confirming that the grinding wheel needs dressing, the tool setting detector 24511 retracts to a position that does not interfere with the operation of the grinding stone 24512. Then, the grinding stone 24512, driven by the dressing drive structure 2452, approaches and contacts the rim of the inner edge grinding wheel 24221 for dressing. After the grinding is completed, the tool inspection instrument 24511 is brought close to the inner edge grinding wheel 24221 again to check to ensure that the grinding operation meets the grinding requirements.

[0126] In one implementation, a mounting base is provided below the tool setting detector 24511 and the grinding stone 24512. The grinding stone 24512 is fixedly mounted on the mounting base, and the tool setting detector 24511 can be translated on the mounting base so that the tool setting detector 24511 can move back and forth relative to the grinding stone 24512. In some examples, the tool setting detector 24511 can be configured as a displacement sensor or a laser rangefinder sensor to detect the profile dimension of the inner edge grinding wheel 24221. The profile dimension can be compared with a shape threshold. If the profile dimension exceeds the allowable error range, it can be determined that the inner edge grinding wheel 24221 needs to be re-grinded. In some examples, the grinding stone 24512 can be configured as an oilstone to remove the passivated abrasive grains from the surface of the inner edge grinding wheel 24221.

[0127] The following combination Figures 18 to 22 The process of performing inner edge grinding operations using the inner edge grinding mechanism 24 of this application is described in detail.

[0128] The aforementioned transfer mechanism 24 transfers the brake disc, which has undergone outer edge grinding and toroidal grinding, to the chuck structure 241 of the inner edge machining area 214, where the outer edge of the brake disc is held by the jaws 2412. Then, driven by the inner edge grinding machine base 2421, the inner edge grinding spindle 2422 approaches the brake disc held by the chuck structure 241 via the inner edge grinding drive device 243, and then the inner edge grinding wheel 24221 extends into the inner edge of the brake disc via the lifting drive mechanism 2423. Before performing the inner edge grinding operation, the second lifting structure 2442 of the measuring device 244 lowers relative to the first lifting structure 2441, so that the first measuring part 24431 and the second measuring part 24432 on the measuring block 2443 can detect the inner edge of the brake disc to determine the grinding amount. Subsequently, the second lifting structure 2442 rises relative to the first lifting structure 2441, so that the measuring device 244 is positioned so as not to interfere with the inner edge grinding wheel 24221 performing inner edge grinding operations.

[0129] During the grinding process, the brake disc is sprayed and dried by a cleaning device. After grinding, the second lifting structure 2442 descends again to check whether the brake disc meets the processing requirements using the first measuring unit 24431 and the second measuring unit 24432. If it does not meet the requirements, it is re-grinded or recycled. If it meets the requirements, it is transferred by the transfer mechanism 24 to the unloading conveyor 27 for unloading. Next, the tool setting detector 24511 of the grinding wheel dressing device 245 moves to a position close to the inner edge grinding wheel 24221. After confirming that the grinding wheel needs to be dressed, the tool setting detector 24511 retracts to a position that does not interfere with the work of the grinding stone 24512. Then, the grinding stone 24512 approaches and contacts the rim of the inner edge grinding wheel 24221 under the drive of the dressing drive structure 2452 for dressing. After the grinding is completed, the tool inspection instrument 24511 is brought close to the inner edge grinding wheel 24221 again to check to ensure that the grinding operation meets the grinding requirements.

[0130] The following combination Figures 1 to 22 The process of performing outer edge grinding, toroidal grinding, and inner edge grinding operations using the brake disc multi-station grinding equipment 2 provided in this application is described in detail.

[0131] First, the transfer mechanism 25 transfers the brake disc to be ground from the feeding conveyor 26 to the rotating mechanism 234 in the outer edge processing area 211, and changes the brake disc from a horizontal position to a vertical position, whereby the claw 23431 fixes the vertically placed brake disc. The first grinding wheel 22121 and the second grinding wheel 22131 of the outer edge grinding device 221 approach the outer edge 11 under the drive of the transverse drive device 223, causing the first grinding wheel 22121 to perform a first grinding on the outer edge 11 to form a first step structure A1. Within a preset time interval, the second grinding wheel 22131 descends under the drive of the lifting drive structure 2214. Simultaneously, the first grinding wheel 22121 and the second grinding wheel 22131 move under the drive of the forward and backward drive device 222, so that the second grinding wheel 22131 contacts the outer edge 11 for a second grinding, thereby forming a second step structure A2. Then, the first grinding wheel 22121 and the second grinding wheel 22131 complete the outer edge grinding operation under the drive of the forward and backward drive device 222.

[0132] After the outer edge grinding operation is completed, the rotating mechanism 234 drives the brake disc to rotate 90° counterclockwise, rotating the brake disc with the completed outer edge grinding operation to the first toroidal grinding device 231. Next, the thickness detection device 237 descends to both sides of the brake disc 1 to detect the thickness of the brake disc and determine the feed rate. After detection, the thickness detection device 237 rises to a position that does not interfere with the grinding operation. Subsequently, the first toroidal grinding wheel 23111 and the second toroidal grinding wheel 23121 move towards each other under the drive of the second drive device 236, and then approach the rotating mechanism 234 under the drive of the first drive device 235, thus performing one-third of the overall toroidal grinding operation on the brake disc 1. The rotating mechanism 234 then rotates 90° counterclockwise again to rotate the brake disc to the second toroidal grinding device 232. After completing two-thirds of the overall toroidal grinding operation, the rotating mechanism 234 rotates 90° counterclockwise again to move the brake disc to the third toroidal grinding device 233 to complete the remaining one-third of the toroidal grinding operation. After completing the above toroidal grinding operation, the rotating mechanism 234 drives the brake disc, which has completed the toroidal grinding operation, to rotate 90° counterclockwise again to move it back to the outer edge grinding device 221. Subsequently, the transfer mechanism 24 transfers the brake disc to the inner edge processing area 214 for inner edge grinding operation.

[0133] After completing the toroidal grinding operation, the transfer mechanism 24 transfers the brake disc to the chuck structure 241, where the outer edge of the brake disc is held by the jaws 2412. Then, driven by the inner edge grinding machine base 2421, the inner edge grinding spindle 2422 approaches the brake disc held by the chuck structure 241 via the inner edge grinding drive device 243, and then the inner edge grinding wheel 24221 extends into the inner edge of the brake disc via the lifting drive mechanism 2423. Before performing the inner edge grinding operation, the measuring device 244 descends to inspect the inner edge of the brake disc to determine the grinding amount. After the measurement is completed, the measuring device 244 rises to a position that does not interfere with the inner edge grinding wheel 24221 performing the inner edge grinding operation. During the grinding process, the brake disc is sprayed and dried by the cleaning device. After the grinding is completed, the measuring device 244 descends again to check whether the brake disc meets the processing requirements. The brake disc that meets the requirements is transferred by the transfer mechanism 24 to the unloading conveyor 27 for unloading. Next, the grinding wheel dressing device 245 grinds the rim of the inner edge grinding wheel 24221.

[0134] In summary, the multi-station grinding equipment for brake discs provided in this application integrates the outer edge grinding, toroidal grinding, and inner edge grinding operations on the same grinding equipment by dividing the base into loading / unloading areas, outer edge processing areas, toroidal grinding areas, and inner edge processing areas, and by setting corresponding outer edge grinding mechanisms, toroidal grinding mechanisms, and inner edge grinding mechanisms in each processing area, thereby improving the grinding efficiency of the brake discs. By configuring the toroidal grinding mechanism to include three toroidal grinding devices and setting the grinding time of each toroidal grinding device to 1 / 3 of the grinding time of the outer edge grinding device, the brake disc can complete the toroidal grinding operation in parallel while completing the outer edge grinding operation, thereby adjusting the flow processing cycle of the grinding equipment and further improving the grinding efficiency of the brake discs. Furthermore, this application achieves the connection between the outer edge grinding operation and the toroidal grinding operation by setting a rotary mechanism for transfer between the three toroidal grinding devices and the outer edge grinding device, ensuring automated, continuous, and automated grinding of the brake discs.

[0135] The above embodiments are merely illustrative of the inventive essence and beneficial effects of this application, and are not intended to limit this application. Any person skilled in the art can modify or alter the above embodiments without departing from the principles and scope of this application. Therefore, all equivalent modifications or alterations achieved by those skilled in the art without departing from the spirit and technical concept disclosed in this application should still be covered by the claims of this application.

Claims

1. A multi-station grinding apparatus for brake discs, characterized in that, For grinding brake discs, the brake discs are generally annular, having an inner edge, an outer edge, and opposite annular surfaces on both sides. The multi-station grinding equipment for brake discs includes: The base has an annular processing area, a loading and unloading area, and an inner processing area arranged around an outer processing area; An outer edge grinding mechanism is provided in the outer edge processing area, including an outer edge grinding device for grinding the outer edge of the vertically placed brake disc; A toroidal grinding mechanism, disposed in the toroidal processing area, includes three toroidal grinding devices for grinding the toroidal surfaces on both sides of the vertically placed brake disc, which has already undergone outer edge grinding, and a rotating mechanism disposed between the three toroidal grinding devices for transferring the brake disc between the three toroidal grinding devices and the outer edge grinding device; wherein the grinding time of each toroidal grinding device is 1 / 3 of the grinding time of the outer edge grinding device. An inner edge grinding mechanism is provided in the inner edge processing area, including an inner edge grinding device, for grinding the inner edge of the horizontally placed brake disc that has completed the annular grinding operation. A transfer mechanism is located near the outer edge grinding mechanism to switch the brake disc between a vertical and horizontal placement state and to transfer the brake disc from the outer edge processing area to the inner edge processing area for inner edge grinding.

2. The apparatus for multi-station grinding of brake discs according to claim 1, characterized in that, The included angle between the outer edge grinding device and each adjacent grinding device among the three toroidal grinding devices is 90°.

3. A multi-station grinding apparatus for brake discs according to claim 2, characterised in that, The grinding amount of each of the aforementioned toroidal grinding devices on the brake disc is 1 / 3 of the total toroidal grinding amount.

4. A multi-station grinding apparatus for brake discs according to claim 3, characterised in that, The grinding time of the inner edge grinding device on the brake disc is less than the grinding time of the outer edge grinding device on the brake disc.

5. The apparatus for multi-station grinding of brake discs according to claim 1, characterized in that, The rotating mechanism includes: A rotating seat, disposed on the base, is used to support the vertically placed brake disc and has a rotating platform on it; The rotating bracket includes four support arms disposed on the rotating table, with an included angle of 90° between each adjacent support arm, and is used to drive the brake disc to rotate between the outer edge grinding device and the toroidal grinding device; The shaft is vertically disposed at one end of each of the support arms and has a claw portion that can be opened and closed to fix the inner edge of the brake disc.

6. The apparatus for multi-station grinding of brake discs according to claim 1, characterized in that, The transfer mechanism includes: The transfer device includes a rotating frame that can rotate around its axis in a horizontal plane and a clamping assembly disposed on the rotating frame for clamping the brake disc and driving the brake disc to move up and down on the rotating frame. The lateral moving device includes a moving guide rail disposed on the base and extending from the outer edge processing area to the inner edge processing area, and a lateral moving drive unit for driving the transfer device to move laterally along the moving guide rail.

7. A multi-station grinding apparatus for brake discs according to claim 6, characterised in that, The clamping assembly includes a lifting seat mounted on a rotating frame, a flipping unit mounted on the lifting seat for switching the brake disc between a vertical and horizontal placement state, and clamping units connected to the flipping unit and capable of opening and closing to clamp the outer edge of the brake disc on opposite sides.

8. The apparatus for multi-station grinding of brake discs according to claim 1, characterized in that, The outer edge grinding device includes an outer edge grinding machine base disposed above a transverse drive device, a first outer edge grinding spindle disposed on the outer edge grinding machine base, and a second outer edge grinding spindle disposed on the upper side of the first outer edge grinding spindle.

9. A multi-station grinding apparatus for brake discs according to claim 8, characterised in that, The outer edge grinding device also includes a lifting drive structure disposed on the outer edge grinding machine base for driving the second outer edge grinding spindle to perform lifting and lowering movements to adjust the grinding amount.

10. A multi-station grinding apparatus for brake discs according to claim 9, characterised in that, The first grinding wheel of the first outer edge grinding spindle and the second grinding wheel of the second outer edge grinding spindle are offset so that the first grinding wheel first grinds the outer edge to form a first step structure by moving laterally, and the second grinding wheel grinds the outer edge a second time by moving downward to form a second step structure that connects with the first step structure. The first grinding wheel and the second grinding wheel grind the first step structure and the second step structure in sequence by moving longitudinally to complete the outer edge grinding operation.

11. A multi-station grinding apparatus for brake discs according to claim 1, characterised in that, The toroidal grinding mechanism further includes a first drive device disposed on the base for driving the toroidal grinding device to approach the rotating mechanism, and a second drive device disposed above the first drive device for driving the toroidal grinding device to approach the toroidal surface of the brake disc to perform grinding operations.

12. A multi-station grinding apparatus for brake discs according to claim 11, characterised in that, The annular grinding device includes a first annular grinding spindle and a second annular grinding spindle arranged side by side above the second driving device, which can move towards each other along the second driving device to grind the opposite annular surfaces of the brake disc respectively.

13. The apparatus for multi-station grinding of brake discs according to claim 1, characterized in that, The inner edge grinding mechanism also includes a chuck structure disposed in the inner edge processing area for receiving the brake disc held by the transfer mechanism.

14. A multi-station grinding apparatus for brake discs according to claim 13, characterised in that, The inner edge grinding mechanism further includes an inner edge grinding drive device disposed at the far end of the chuck structure for driving the inner edge grinding device to move toward the chuck structure to perform inner edge grinding operations on the brake disc.

15. A multi-station grinding apparatus for brake discs according to claim 14, characterised in that, The inner edge grinding device includes an inner edge grinding machine base disposed above the inner edge grinding drive device, and a liftable inner edge grinding spindle located on the inner edge grinding machine base and facing downward.

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