Balance adjusting equipment for aluminum alloy hub

Abstract

The invention relates to the technical field of hub manufacturing, in particular to aluminum alloy hub balance adjusting equipment which comprises a base, a plurality of axial positioning block assemblies, a plurality of radial positioning block assemblies and a cutting assembly, each axial positioning block assembly comprises a first supporting block, a first adjusting block and a pressing block, and the first supporting blocks are fixed to the base; the first adjusting block is arranged on the first supporting block and used for adjusting the position relative to the hub up and down, and the pressing block is arranged on the base and used for limiting the hub; the radial positioning block assembly comprises a second supporting block and a second adjusting block, the second supporting block is fixed to the base, and the second adjusting block is arranged on the second supporting block and used for adjusting the position relative to the hub up and down; and the cutting assembly is used for cutting the end face of the adjusted hub so as to adjust the balance of the hub, the poor process dynamic balance generated by deformation caused by stress release in the prior art is remarkably improved, and the production process quality cost of hub machining enterprises is reduced.

Description

Technical Field

[0001] This invention relates to the field of wheel hub manufacturing technology, and in particular to an aluminum alloy wheel hub balancing adjustment device. Background Technology

[0002] During the thermal stage of low-pressure casting and low-pressure casting of wheel hub blanks, the stress release of the body causes deformation of the blank, which affects the effectiveness of the positioning reference surface in the machining process and also changes the uniformity of mass distribution on the structure.

[0003] Long-term wear of tooling during machining processes and theoretical deviations in positioning datums can cause subtle changes in the positioning datums during the machining process, thus affecting the quality of production and processing.

[0004] Due to structural differences, some wheel hub products are prone to deformation or stress release at concentrated locations, which can lead to deformation deviations in the fixed position of the blank and changes in the actual positioning reference surface during processing. Summary of the Invention

[0005] The purpose of this invention is to provide an aluminum alloy wheel hub balancing adjustment device, which aims to significantly improve the poor dynamic balance caused by deformation due to stress release in the prior art, and reduce the production process quality costs of wheel hub processing enterprises.

[0006] To achieve the above objectives, the present invention provides an aluminum alloy wheel hub balancing adjustment device, comprising a base, multiple axial positioning block assemblies, multiple radial positioning block assemblies, and a cutting assembly. The base is provided with a pre-positioning platform for pre-positioning the wheel hub. The axial positioning block assembly includes a first support block, a first adjusting block, and a pressing block. The first support block is fixed on the base, the first adjusting block is disposed on the first support block for adjusting its position relative to the wheel hub vertically, and the pressing block is disposed on the base for limiting the wheel hub's position. The radial positioning block assembly includes a second support block and a second adjustment block. The second support block is fixed on the base, and the second adjustment block is disposed on the second support block for adjusting the position relative to the wheel hub vertically. The cutting assembly is used to perform end face cutting on the adjusted wheel hub to adjust the wheel hub balance.

[0007] The first adjusting block includes a first moving block and a locking bolt. The first moving block is disposed on the first supporting block, and the first moving block is fixed to the first supporting block by the locking bolt. When adjusting the position, a copper pad is added between the first moving block and the first supporting block.

[0008] The second adjusting block includes a second moving block and a second bolt. The second moving block is disposed on the second supporting block, and the second moving block is fixed to the second adjusting block by the second bolt. When adjusting the position, a copper pad is added between the second moving block and the second supporting block.

[0009] The first moving block and the second moving block have serrated surfaces.

[0010] The radial positioning block assembly further includes a displacement detector, which is used to detect the movement position of the second adjustment block.

[0011] The displacement detector includes a photoelectric sensor, a data processing unit, and a control unit. The photoelectric sensor is disposed on one side of the second adjustment block. The data processing unit is connected to the photoelectric sensor, and the control unit is connected to the data processing unit.

[0012] The pressure block includes a support base, a rotating rod, a rotating ring, a pressure block body, a limiting ring, and a locking nut. The support base is fixed to the base, the rotating rod is threaded to the support base, the pressure block body is fixed to the rotating ring, the limiting ring is rotatably mounted on the rotating rod, and the locking nut is threaded to the support base and located on one side of the limiting ring.

[0013] The first adjusting block includes a first adjusting screw, a first adjusting motor, and a first adjusting block body. The first adjusting block body is slidably disposed on the first supporting block. The first adjusting screw is threadedly connected to the first adjusting block body, and the output end of the first adjusting motor is connected to the first adjusting screw.

[0014] The second adjusting block includes a second adjusting block body, a second adjusting screw, a second adjusting motor, a protective ring, and a sealing ring. The second adjusting block body is slidably disposed on the second supporting block. The second adjusting screw is threadedly connected to the second adjusting block body. The output end of the second adjusting motor is connected to the second adjusting screw. The protective ring is fixed below the second adjusting block body. The sealing ring is disposed between the protective ring and the second supporting block.

[0015] The cutting assembly includes a support platform, a position controller, and a cutting tool. The support platform is fixed to one side of the base, the position controller is used to control the position of the cutting tool, and the cutting tool is used to cut the wheel hub.

[0016] This invention discloses an aluminum alloy wheel hub balancing and adjustment device. The device offers high precision and adaptability. The base, serving as the load-bearing foundation and mounting platform, is typically made of high-rigidity cast iron or welded steel and undergoes aging treatment to ensure long-term stability. A pre-positioning platform is positioned at the core of the upper surface of the base. This platform acts as the initial reference for wheel hub loading, its outline conforming to the shape of the center hole or rim bottom of the aluminum alloy wheel hub. It primarily provides initial support and center positioning for the wheel hub to be processed. Using the pre-positioning platform, operators or robotic arms can quickly place the wheel hub in the correct position within the designated area, effectively reducing subsequent precision adjustments and improving the overall processing cycle time.

[0017] To achieve precise constraint on the wheel hub in different directions during pre-processing clamping, multiple axial positioning block assemblies are arranged on the equipment. These axial positioning block assemblies are key mechanisms for restricting the axial movement of the wheel hub. A first support block is firmly fixed to the base, serving as the mounting base for the entire assembly and ensuring positioning rigidity. A first adjusting block is movably mounted on the first support block. Based on the difference in a certain direction obtained from dynamic balancing measurements of the aluminum alloy wheel hub, its position relative to the wheel hub is flexibly adjusted vertically. This ensures that the heavier side of the wheel hub is higher than the lighter side axially, allowing more weight to be removed during cutting, thus adjusting the wheel hub's balance.

[0018] The clamping block is positioned on the corresponding location on the base (usually opposite or in conjunction with the first adjusting block) and is used to apply clamping force to the wheel hub after positioning. The clamping block can be hydraulically, pneumatically, or manually driven to ensure that the wheel hub does not experience axial movement or vibration during cutting, thereby guaranteeing machining quality.

[0019] Simultaneously, to adjust the radial hub balance, the second support block is also fixed to the base, providing support for radial positioning. The second adjustment block is mounted on the second support block and has a similar up-and-down adjustment function to the axial adjustment block, so as to lift the heavier side, mainly the hub flange position, radially, so that more weight can be cut during cutting, thereby adjusting the hub balance.

[0020] The cutting assembly is typically equipped with a high-speed rotating spindle and a precision feed mechanism, enabling it to perform minute end-face cutting on the clamped and fixed wheel hub end face (usually the back of the wheel disc or the side of the flange). By removing unbalanced material from specific areas, it effectively eliminates the wheel hub's mass eccentricity, thereby achieving precise adjustment of the wheel hub's dynamic balance. The entire cutting process is smooth and highly automated, significantly improving the final product quality of aluminum alloy wheels. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a structural diagram of an aluminum alloy wheel hub balancing adjustment device with a wheel hub, according to the first embodiment of the present invention.

[0023] Figure 2 This is a structural diagram of an aluminum alloy wheel hub balancing adjustment device according to the first embodiment of the present invention.

[0024] Figure 3 yes Figure 2 A magnified view of detail A.

[0025] Figure 4 This is a structural diagram of the displacement detector of the present invention.

[0026] Figure 5 This is a schematic diagram of the hub correction orientation of the present invention.

[0027] Figure 6 This is a right-side structural diagram of an aluminum alloy wheel hub balancing adjustment device according to a second embodiment of the present invention.

[0028] Figure 7 This is a cross-sectional view of an aluminum alloy wheel hub balancing adjustment device according to the second embodiment of the present invention.

[0029] Figure 8 yes Figure 7 A magnified view of detail B.

[0030] Figure 9 This is a longitudinal cross-sectional view of an aluminum alloy wheel hub balancing adjustment device according to the second embodiment of the present invention.

[0031] The components include: base 101, axial positioning block assembly 102, radial positioning block assembly 103, cutting assembly 104, pre-positioning stage 105, first support block 106, first adjusting block 107, pressure block 108, second support block 109, second adjusting block 110, first moving block 111, locking bolt 112, second moving block 113, second bolt 114, photoelectric sensor 116, data processing unit 117, control unit 118, support seat 119, rotating rod 120, rotating ring 121, pressure block body 122, limit ring 123, locking nut 124, support platform 125, position controller 126, cutting tool 127, first adjusting screw 128, first adjusting motor 129, first adjusting block body 130, second adjusting block body 131, second adjusting screw 132, second adjusting motor 133, protective ring 134, and sealing ring 135. Detailed Implementation

[0032] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0033] In the description of this invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, in the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] First embodiment: Please refer to Figures 1-5This invention provides an aluminum alloy wheel hub balancing adjustment device, including a base 101, multiple axial positioning block assemblies 102, multiple radial positioning block assemblies 103, and a cutting assembly 104. The base 101 is provided with a pre-positioning platform 105 for pre-positioning the wheel hub. The axial positioning block assembly 102 includes a first support block 106, a first adjusting block 107, and a pressure block 108. The first support block 106 is fixed to the base 101, the first adjusting block 107 is disposed on the first support block 106, and is used to adjust the position relative to the wheel hub vertically. The pressure block 108 is disposed on the base 101 and is used to limit the wheel hub's position. The radial positioning block assembly 103 includes a second support block 109 and a second adjusting block 110. The second support block 109 is fixed to the base 101, and the second adjusting block 110 is disposed on the second support block 109, and is used to adjust the position relative to the wheel hub vertically. The cutting assembly 104 is used to perform end face cutting on the adjusted wheel hub to adjust its balance.

[0035] In this embodiment, the present invention provides a high-precision, highly adaptable aluminum alloy wheel hub balancing adjustment device. The present invention employs a wheel hub dynamic balancing adjustment method that, during the machining process, combines the principles of machining positioning datum and product datum surface, comprehensively considering the X-axis (radial) and Z-axis (axial) of the fixture, ultimately minimizing the deviation between theoretical and actual X and Z positioning, thereby achieving zero defects in appearance and quality during product processing. X-axis (radial) positioning consists of three radial positioning datum points. Z-axis (axial) positioning consists of three axial positioning datum segments. Radial positioning requires the product's radial positioning point to be located at 1 / 2 to 2 / 3 of the positioning datum surface. Axial positioning requires that when the product's axial datum surface is assembled onto the fixture's axial positioning surface, it must not interfere with any other part of the product.

[0036] Dynamic balancing quality inspection is performed using automated or manual equipment with dynamic balancing capabilities. The base 101, serving as the load-bearing foundation and mounting platform for the entire equipment, is typically made of high-rigidity cast iron or welded steel and undergoes aging treatment to ensure long-term stability. A pre-positioning platform 105 is located at the core of the upper surface of the base 101. This pre-positioning platform 105 serves as the initial reference for loading the wheel hub; its outline is adapted to the center hole or rim bottom shape of the aluminum alloy wheel hub, primarily used for initial support and center positioning of the wheel hub to be processed. Through the pre-positioning platform 105, operators or robotic arms can quickly place the wheel hub in the correct position within the designated area, effectively reducing the time required for subsequent precision adjustments and improving the overall processing cycle time.

[0037] To achieve precise constraint on the wheel hub in different directions, multiple axial positioning block assemblies 102 are arranged on the equipment. The axial positioning block assembly 102 is a key mechanism for restricting the axial movement of the wheel hub. A first support block 106 is firmly fixed on the base 101, serving as the mounting base for the entire assembly and ensuring positioning rigidity. A first adjusting block 107 is movably mounted on the first support block 106. It is used to flexibly adjust the position of the wheel hub relative to the hub in the vertical direction based on the difference in a certain direction obtained through dynamic balancing measurements. This makes the heavier side of the wheel hub higher than the lighter side in the axial direction, allowing more weight to be removed during cutting, thus adjusting the wheel hub balance.

[0038] The pressure block 108 is positioned on the corresponding location of the base 101 (usually opposite to or in conjunction with the first adjusting block 107) and is used to apply a clamping force to the wheel hub after positioning. The pressure block 108 can be hydraulically, pneumatically, or manually driven to ensure that the wheel hub does not experience axial movement or vibration during the cutting process, thereby guaranteeing machining quality.

[0039] Meanwhile, in order to adjust the radial hub balance, the second support block 109 is also fixed on the base 101 to provide support for radial positioning. The second adjustment block 110 is installed on the second support block 109 and has a similar up-and-down adjustment function as an axial adjustment block, so as to lift the heavier side, mainly the hub flange position, in the radial direction, so that more weight can be cut during cutting, thereby adjusting the hub balance.

[0040] The cutting assembly 104 is typically equipped with a high-speed rotating spindle and a precision feed mechanism, enabling it to perform minute end-face cutting on the clamped and fixed wheel hub end face (usually the back of the wheel disc or the side of the flange). By removing unbalanced material from specific areas, it effectively eliminates the wheel hub's mass eccentricity, thereby achieving precise adjustment of the wheel hub's dynamic balance. The entire cutting process is smooth and highly automated, significantly improving the final product quality of the aluminum alloy wheel hub.

[0041] The second adjustment block 110 includes a second moving block 113 and a second bolt 114. The second moving block 113 is disposed on the second support block 109, and the second moving block 113 is fixed to the second adjustment block 110 by the second bolt 114. When adjusting the position, a copper pad is added between the second moving block 113 and the second support block 109.

[0042] Similarly, the second adjusting block 110 also adopts an adjustable structure, mainly consisting of a second moving block 113 and a second bolt 114. The second moving block 113 is mounted on the second support block 109, serving as the actuating end for radial positioning. By tightening the second bolt 114, the second moving block 113 can be tightly pressed and fixed to the second support block 109 (or the fixing component base), forming a stable rigid connection. During radial position correction, a fine-tuning strategy is also employed, i.e., a copper pad is added between the second moving block 113 and the second support block 109. Utilizing the good ductility and compressibility of the copper pad, the fit clearance can be eliminated, the relative height of the second moving block 113 can be precisely changed, ensuring the accuracy of the radial positioning lever arm, and thus guaranteeing the coaxiality of the hub rotation center.

[0043] If, after machining, a narrow flange width appears in the A1B1 direction, adjust the radial block A1. Specifically, if the flange width is closer to A1 (or narrower than B1), use a copper pad A1 against the center end of the fixture (referred to as the "inner side," otherwise the "outer side"). Generally, 0.2~0.3mm of copper pad can adjust the flange width difference by 0.5mm. If the flange width is closer to A1 (or narrower than B1), use a copper pad on the outer side of A1.

[0044] If, after machining, a narrow flange width appears in the A2B2 direction, adjust the A2 radial block. Specifically, if the width is closer to the A2 flange (or narrower than the B2 flange), use a copper pad on the A2 flange near the center of the fixture (referred to as the "inner side," otherwise the "outer side"). Generally, a 0.2~0.3mm copper pad can adjust the 0.5mm difference in flange width. If the width is closer to the A2 flange (or narrower than the B2 flange), use a copper pad on the outer side of the A2 flange.

[0045] If, after machining, a narrow flange width appears in the A3B3 direction, adjust the A3 radial block. Specifically, if the flange width is closer to A3 (or narrower than B3), use a copper pad on A3 near the center end of the fixture (referred to as the "inner side," otherwise the "outer side"). Generally, 0.2~0.3mm of copper pad can adjust the flange width difference by 0.5mm. If the flange width is closer to A3 (or narrower than B3), use a copper pad on the outer side of A3.

[0046] The first adjustment block 107 includes a first moving block 111 and a locking bolt 112. The first moving block 111 is disposed on the first support block 106. The first moving block 111 is fixed to the first support block 106 by the locking bolt 112. When adjusting the position, a copper pad is added between the first moving block 111 and the first support block 106.

[0047] The first adjusting block 107 adopts a simplified and reliable split design, mainly including a first moving block 111 and a locking bolt 112. The first moving block 111, as a positioning component directly in contact with the wheel hub, is slidably mounted on the first support block 106. To ensure the first moving block 111 remains absolutely stable during operation, the locking bolt 112 passes through the first moving block 111 and is screwed into the first support block 106, using the locking force of the threaded pair to firmly fix the first moving block 111 to the first support block 106. In particular, when dealing with aluminum alloy wheel hubs of different models or sizes with slight tolerances, fine-tuning of the positioning height is required. In this case, the operator can add copper shims between the first moving block 111 and the first support block 106. By adjusting the number or thickness of the copper shims, millimeter-level height compensation can be achieved, thereby quickly adapting to the positioning requirements of different wheel hubs. This adjustment method is both economical and efficient.

[0048] If, after the second machining step, a wider edge B1 appears in the A1B1 direction, then a copper pad is used to adjust the height of the B1 end face block. Generally, a 0.4~0.5mm copper pad can adjust the axial width difference by 1.0mm.

[0049] If, after the second machining step, a wider edge (B2) appears in the A2B2 direction, then a copper pad is used to adjust the height of the B2 end face block. Generally, a 0.4~0.5mm copper pad can adjust the axial width difference by 1.0mm.

[0050] If, after the second machining step, a wider edge (B3) appears in the A3B3 direction, then a copper pad is used to adjust the height of the B3 end face block. Generally, a 0.4~0.5mm copper pad can adjust the axial width difference by 1.0mm.

[0051] If, after the second machining step, a wider edge (A1) appears in the A1B1 direction, then the end face blocks (B2 and B3) should be adjusted. Generally, a 0.4~0.5mm copper sheet can adjust the axial width difference by 1.0mm.

[0052] If, after the second machining step, a wider edge (A2) appears in the A2B2 direction, then the end face blocks (B1 and B3) should be adjusted. Generally, a 0.4~0.5mm copper sheet can adjust the axial width difference by 1.0mm.

[0053] If, after the second machining step, a wider edge (A3) appears in the A3B3 direction, then the B1 and B2 end face blocks should be adjusted. Generally, a 0.4~0.5mm copper sheet can adjust the axial width difference by 1.0mm.

[0054] The first moving block 111 and the second moving block 113 have serrated surfaces.

[0055] To further prevent unexpected displacement of the positioning blocks during adjustment or high-load cutting operations, the contact surfaces of the first moving block 111 and the second moving block 113 are specially machined and designed as serrated surfaces with high frictional resistance. When the locking bolt 112 or the second bolt 114 is tightened, the serrated surfaces generate a strong mechanical interlocking force, which can significantly increase the friction coefficient between the contact surfaces, effectively overcome the lateral force caused by cutting vibration, and prevent the moving blocks from sliding or loosening relative to the support blocks, thereby greatly improving the overall positioning stability and repeatability of the equipment.

[0056] The radial positioning block assembly 103 further includes a displacement detector for detecting the movement position of the second adjustment block 110.

[0057] To further improve the accuracy and automation of radial positioning of aluminum alloy wheel hubs and achieve digital monitoring of the positioning process, a high-precision displacement detector is added to the radial positioning block assembly 103. This displacement detector, acting as the system's "sensory nerve," is specifically used to detect the real-time movement of the second adjusting block 110 relative to the base 101. By accurately acquiring the displacement data of the adjusting block, operators or the control system can accurately grasp the extension amount of the radial support, thereby ensuring the positioning accuracy for wheel hubs of different specifications and effectively avoiding processing errors caused by over- or under-positioning.

[0058] The displacement detector includes a photoelectric sensor 116, a data processing unit 117, and a control unit 118. The photoelectric sensor 116 is disposed on one side of the second adjustment block 110. The data processing unit 117 is connected to the photoelectric sensor 116, and the control unit 118 is connected to the data processing unit 117.

[0059] The photoelectric sensor 116, as the core signal acquisition element, is precisely calibrated and positioned on one side of the second adjustment block 110. This installation position facilitates the photoelectric sensor 116 to non-contactly sense the movement trajectory of the second adjustment block 110 (e.g., by sensing changes in a scale or reflector), converting the mechanical displacement of the second adjustment block 110 into a corresponding optical signal in real time, and further converting it into an electrical signal for output.

[0060] The data processing unit 117 receives the raw electrical signal from the photoelectric sensor 116, performs filtering, amplification, and analog-to-digital conversion (A / D conversion) on it, and accurately calculates the current displacement value of the second adjustment block 110 according to a preset algorithm. Subsequently, the control unit 118 is communicatively connected to the data processing unit 117. As the central brain of the entire device, the control unit 118 receives the processed position data and compares it with preset positioning parameters. The adjustment status is displayed in real time on the screen, or in automatic mode, it determines whether the locking conditions are met based on the position data, thereby guiding subsequent adjustment actions.

[0061] The pressure block 108 includes a support base 119, a rotating rod 120, a rotating ring 121, a pressure block body 122, a limiting ring 123, and a locking nut 124. The support base 119 is fixed to the base 101. The rotating rod 120 is threadedly connected to the support base 119. The pressure block body 122 is fixed to the rotating ring 121. The limiting ring 123 is rotatably mounted on the rotating rod 120. The locking nut 124 is threadedly connected to the support base 119 and is located on one side of the limiting ring 123.

[0062] The support base 119 serves as the mounting base and is firmly fixed to the base 101, providing support for the entire clamping structure. The rotating rod 120 passes through the support base 119 and forms a precise threaded engagement with the threaded hole inside the support base 119; by rotating the rotating rod 120, it can be driven to move up and down in the vertical direction using the thread transmission principle, thereby adjusting the clamping height.

[0063] At the lower end of the rotating rod 120, the pressure block body 122 is fixedly mounted on the rotating ring 121. This connection method allows the pressure block body 122 to rotate flexibly relative to the rotating rod 120 via the rotating ring 121, providing a certain degree of omnidirectional adjustment freedom. When the pressure block body 122 contacts the wheel hub surface, it can automatically fine-tune the contact surface according to the angle of the wheel hub, achieving surface contact rather than point contact, thereby greatly increasing the pressing friction and stability and preventing damage to the wheel hub surface.

[0064] To precisely control the clamping stroke and ensure safety, a limiting ring 123 is movably fitted onto the rotating rod 120. This limiting ring 123 can rotate freely relative to the rotating rod 120 and mainly serves as a stroke limit stop. The locking nut 124 is threadedly connected to the support base 119 and is located on one side of the limiting ring 123. When the rotating rod 120 descends to the predetermined position, tightening the locking nut 124 so that its end face abuts against the limiting ring 123 locks the rotating rod 120 at the current height, preventing the pressure block 108 from loosening or dislodging due to vibration during cutting, thus ensuring the safety and reliability of the machining process.

[0065] The cutting assembly 104 includes a support platform 125, a position controller 126, and a cutting tool 127. The support platform 125 is fixed to one side of the base 101. The position controller 126 is used to control the position of the cutting tool 127, and the cutting tool 127 is used to cut the wheel hub.

[0066] The support platform 125 is securely mounted on one side of the base 101, adjacent to the clamping position of the wheel hub, providing a rigid physical support foundation for the cutting operation. The position controller 126 (typically composed of a servo motor, ball screw, and CNC system) is mounted on the support platform 125, and its function is to precisely drive and control the spatial position and movement trajectory of the tool 127. Based on the imbalance parameters calculated by the system, the position controller 126 can control the tool 127 to perform micro-feeds along the X-axis, Y-axis, or Z-axis, precisely adjusting the cutting depth and feed position. Finally, the high-speed rotating tool 127 aligns with and cuts a specific end face or rim of the wheel hub, eliminating mass eccentricity by removing excess material, thereby completing a high-precision adjustment of the wheel hub's dynamic balance.

[0067] Second embodiment: Please refer to Figures 6-9 This invention provides an aluminum alloy wheel hub balancing adjustment device, including a base 101, multiple axial positioning block assemblies 102, multiple radial positioning block assemblies 103, and a cutting assembly 104. The base 101 is provided with a pre-positioning platform 105 for pre-positioning the wheel hub. The axial positioning block assembly 102 includes a first support block 106, a first adjusting block 107, and a pressure block 108. The first support block 106 is fixed to the base 101, the first adjusting block 107 is disposed on the first support block 106, and is used to adjust the position relative to the wheel hub vertically. The pressure block 108 is disposed on the base 101 and is used to limit the wheel hub's position. The radial positioning block assembly 103 includes a second support block 109 and a second adjusting block 110. The second support block 109 is fixed to the base 101, and the second adjusting block 110 is disposed on the second support block 109, and is used to adjust the position relative to the wheel hub vertically. The cutting assembly 104 is used to perform end face cutting on the adjusted wheel hub to adjust its balance.

[0068] The first adjustment block 107 includes a first adjustment screw 128, a first adjustment motor 129, and a first adjustment block body 130. The first adjustment block body 130 is slidably disposed on the first support block 106. The first adjustment screw 128 is threadedly connected to the first adjustment block body 130. The output end of the first adjustment motor 129 is connected to the first adjustment screw 128.

[0069] The second adjusting block 110 includes a second adjusting block body 131, a second adjusting screw 132, a second adjusting motor 133, a protective ring 134, and a sealing ring 135. The second adjusting block body 131 is slidably disposed on the second support block 109. The second adjusting screw 132 is threadedly connected to the second adjusting block body 131. The output end of the second adjusting motor 133 is connected to the second adjusting screw 132. The protective ring 134 is fixed below the second adjusting block body 131. The sealing ring 135 is disposed between the protective ring 134 and the second support block 109.

[0070] The radial positioning block assembly 103 further includes a displacement detector for detecting the movement position of the second adjustment block 110.

[0071] The displacement detector includes a photoelectric sensor 116, a data processing unit 117, and a control unit 118. The photoelectric sensor 116 is disposed on one side of the second adjustment block 110. The data processing unit 117 is connected to the photoelectric sensor 116, and the control unit 118 is connected to the data processing unit 117.

[0072] The pressure block 108 includes a support base 119, a rotating rod 120, a rotating ring 121, a pressure block body 122, a limiting ring 123, and a locking nut 124. The support base 119 is fixed to the base 101. The rotating rod 120 is threadedly connected to the support base 119. The pressure block body 122 is fixed to the rotating ring 121. The limiting ring 123 is rotatably mounted on the rotating rod 120. The locking nut 124 is threadedly connected to the support base 119 and is located on one side of the limiting ring 123.

[0073] The cutting assembly 104 includes a support platform 125, a position controller 126, and a cutting tool 127. The support platform 125 is fixed to one side of the base 101. The position controller 126 is used to control the position of the cutting tool 127, and the cutting tool 127 is used to cut the wheel hub.

[0074] This invention provides a high-precision, automated dynamic balancing and weight-removing cutting device for aluminum alloy wheel hubs, aiming to solve the problems of low positioning efficiency, poor adjustment accuracy, and insufficient automation in the traditional wheel hub dynamic balancing correction process.

[0075] Regarding the axial constraint of the wheel hub, the axial positioning block assembly 102 plays a crucial role, comprising a first support block 106, a first adjusting block 107, and a pressure block 108. The first support block 106 is firmly fixed to the base 101, serving as the basis for positioning; the first adjusting block 107 is mounted on the first support block 106 and can be finely adjusted vertically according to the specific model of the wheel hub to adjust the position of the side with axial imbalance; the pressure block 108 is set at the corresponding position on the base 101. When the position of the wheel hub is determined, the pressure block 108 moves downward to apply a clamping force to the wheel hub, achieving reliable axial limiting.

[0076] Regarding the radial constraint of the wheel hub, the radial positioning block assembly 103 is responsible for ensuring that the rotation center of the wheel hub coincides with the machining center of the equipment. This assembly includes a second support block 109 and a second adjustment block 110. The second support block 109 is fixed to the base 101, and the second adjustment block 110 is disposed on the second support block 109, also having an up-and-down adjustment function to adjust one side of the wheel hub that is radially unbalanced.

[0077] The first adjusting block 107 adopts an electromechanical integrated drive structure, specifically including a first adjusting screw 128, a first adjusting motor 129, and a first adjusting block body 130. The first adjusting block body 130 is slidably mounted on the first support block 106 via a precision guide rail, ensuring smooth and backlash-free movement. The first adjusting screw 128 and the first adjusting block body 130 form a threaded transmission pair, and the output end of the first adjusting motor 129 is directly connected to the first adjusting screw 128. By controlling the forward and reverse rotation of the first adjusting motor 129, the first adjusting screw 128 can be driven to rotate, thereby driving the first adjusting block body 130 to precisely rise and fall vertically, thus achieving automated height adjustment of the wheel hub support.

[0078] The second adjusting block 110 also adopts an electric drive scheme. The second adjusting block body 131 is slidably mounted on the second support block 109. The second adjusting screw 132 is threadedly engaged with the second adjusting block body 131. The second adjusting motor 133 drives the second adjusting screw 132 to rotate, thereby driving the second adjusting block body 131 to rise and fall. Considering that there are often metal shavings and coolant in the processing site, this component is specially designed with a dustproof sealing structure: the protective ring 134 is fixed to the outer end of the second adjusting block body 131 (corresponding to "below" in the original text) and moves synchronously with the body; the sealing ring 135 is disposed between the protective ring 134 and the second support block 109. This design can effectively prevent chips and dust from entering the sliding mating surface and threaded pair, extending the service life of the component and maintaining the accuracy of movement.

[0079] The above description discloses only one preferred embodiment of the present invention, and should not be construed as limiting the scope of the present invention. Those skilled in the art will understand that all or part of the processes of the above embodiments can be implemented, and equivalent changes made in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. A device for balancing aluminum alloy wheel hubs, characterized in that, The device includes a base, multiple axial positioning block assemblies, multiple radial positioning block assemblies, and a cutting assembly. The base is provided with a pre-positioning platform for pre-positioning the wheel hub. The axial positioning block assembly includes a first support block, a first adjusting block, and a pressing block. The first support block is fixed on the base, the first adjusting block is disposed on the first support block and is used to adjust the position relative to the wheel hub vertically, and the pressing block is disposed on the base and is used to limit the position of the wheel hub. The radial positioning block assembly includes a second support block and a second adjustment block. The second support block is fixed on the base, and the second adjustment block is disposed on the second support block for adjusting the position relative to the wheel hub vertically. The cutting assembly is used to perform end face cutting on the adjusted wheel hub to adjust the wheel hub balance.

2. The aluminum alloy wheel hub balancing adjustment device as described in claim 1, characterized in that, The first adjustment block includes a first moving block and a locking bolt. The first moving block is disposed on the first support block and is fixed to the first support block by the locking bolt. When adjusting the position, a copper pad is added between the first moving block and the first support block.

3. The aluminum alloy wheel hub balancing adjustment device as described in claim 2, characterized in that, The second adjusting block includes a second moving block and a second bolt. The second moving block is disposed on the second supporting block, and the second moving block is fixed to the second adjusting block by the second bolt. When adjusting the position, a copper pad is added between the second moving block and the second supporting block.

4. The aluminum alloy wheel hub balancing adjustment device as described in claim 3, characterized in that, The first moving block and the second moving block have serrated surfaces.

5. The aluminum alloy wheel hub balancing adjustment device as described in claim 1, characterized in that, The radial positioning block assembly also includes a displacement detector for detecting the movement position of the second adjustment block.

6. The aluminum alloy wheel hub balancing adjustment device as described in claim 5, characterized in that, The displacement detector includes a photoelectric sensor, a data processing unit, and a control unit. The photoelectric sensor is disposed on one side of the second adjustment block. The data processing unit is connected to the photoelectric sensor, and the control unit is connected to the data processing unit.

7. The aluminum alloy wheel hub balancing adjustment device as described in claim 1, characterized in that, The pressure block includes a support base, a rotating rod, a rotating ring, a pressure block body, a limiting ring, and a locking nut. The support base is fixed to the base, the rotating rod is threaded to the support base, the pressure block body is fixed to the rotating ring, the limiting ring is rotatably mounted on the rotating rod, and the locking nut is threaded to the support base and located on one side of the limiting ring.

8. The aluminum alloy wheel hub balancing adjustment device as described in claim 1, characterized in that, The first adjusting block includes a first adjusting screw, a first adjusting motor, and a first adjusting block body. The first adjusting block body is slidably disposed on the first support block. The first adjusting screw is threadedly connected to the first adjusting block body. The output end of the first adjusting motor is connected to the first adjusting screw.

9. The aluminum alloy wheel hub balancing adjustment device as described in claim 8, characterized in that, The second adjusting block includes a second adjusting block body, a second adjusting screw, a second adjusting motor, a protective ring, and a sealing ring. The second adjusting block body is slidably disposed on the second supporting block. The second adjusting screw is threadedly connected to the second adjusting block body. The output end of the second adjusting motor is connected to the second adjusting screw. The protective ring is fixed below the second adjusting block body. The sealing ring is disposed between the protective ring and the second supporting block.

10. The aluminum alloy wheel hub balancing adjustment device as described in claim 1, characterized in that, The cutting assembly includes a support platform, a position controller, and a cutting tool. The support platform is fixed to one side of the base, the position controller is used to control the position of the cutting tool, and the cutting tool is used to cut the wheel hub.

Images