A drilling and milling integrated cutting device for automobile wheel hub runner head

Abstract

The application discloses a kind of automobile wheel hub pouring riser drilling and milling integrated cutting device, it is related to automobile parts casting post-processing technical field.The present application proposes the following scheme, including: machine table;Rotary workbench component is rotationally connected on machine table and middle hollow, for horizontal placement and drive wheel hub workpiece rotation;Milling unit, movably installed on machine table, including milling disc and the milling motor of driving milling disc rotation, the milling disc is used to milling cutting of the pouring riser of wheel hub workpiece inner ring;Feed drive, connected between machine table and milling unit, for driving milling unit moves;Drilling unit is independently installed on machine table, for drilling gas nozzle hole on wheel hub workpiece.Through the eccentric swing of the offset design of curve guide rail, contact point dynamic change is made in cutting process;Realize "thick place more grinding, thin place less grinding", avoid local overload, make milling disc wear more uniform, extend single time grinding interval life.

Description

Technical Field

[0001] This invention relates to the field of post-processing technology for automotive parts casting, and in particular to an integrated drilling and milling device for removing the riser and gating gate of an automotive wheel hub. Background Technology

[0002] Aluminum alloy wheels are usually formed by low-pressure casting or gravity casting. After casting, the inner ring of the wheel will have residual gates and risers, which need to be removed before subsequent processing can be carried out. At the same time, valve holes need to be drilled on the side of the wheel or between the spokes for installing tire valves. In traditional processes, gate and riser removal is mostly done by manual gas cutting or stamping equipment, while valve hole drilling is done by a separate drilling machine, which requires multiple clamping and transfer, resulting in low efficiency, many bumps and scratches, and poor dimensional consistency.

[0003] Although some existing drilling and milling integrated equipment can complete drilling and milling on one machine tool, they usually use a fixed tool path. The contact position between the tool and the gate remains unchanged for a long time, resulting in severe local wear of the tool and requiring frequent machine stops for re-grinding or replacement. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to solve the above-mentioned problems.

[0005] To achieve the above technical objectives, the present invention provides an integrated drilling and milling device for removing the riser and gating gate of an automobile wheel hub.

[0006] Includes: machine tools;

[0007] The rotary worktable assembly is rotatably connected to the machine base and has a hollow center, used for horizontal placement and driving the hub workpiece to rotate.

[0008] A milling unit, movably mounted on a machine base, includes a milling disc and a milling motor that drives the milling disc to rotate. The milling disc is used to mill and remove the gating and riser of the inner ring of a wheel hub workpiece.

[0009] The feed drive unit connects the machine tool and the milling unit and is used to drive the milling unit to move.

[0010] The drilling unit, independently mounted on the machine base, is used to drill air nozzle holes on the wheel hub workpiece;

[0011] The high-pressure jet nozzle is installed above the machine tool, with its outlet aimed at the contact area between the milling disc and the wheel hub workpiece.

[0012] Preferably, the rotary table assembly includes:

[0013] The base is rotatably connected to the machine platform and has a hollow center.

[0014] Adjust the vortex wheel, which is rotatably installed inside the base. Its lower end face is provided with a flat thread, and its outer circle is provided with worm gear teeth.

[0015] The worm is mounted on the side wall of the base and meshes with the worm gear teeth; there are multiple jaws, evenly arranged in the circumference, and each jaw has a rack at the bottom that meshes with the planar thread;

[0016] The cover plate is fixed to the upper surface of the base and has radial guide grooves for the grippers to pass through.

[0017] Preferably, the milling unit further includes:

[0018] The curved guide rail is fixed on the machine base, and its trajectory is an arc, with the center of the arc offset from the rotation center of the rotary worktable assembly in the horizontal plane.

[0019] A sliding seat is slidably connected to a curved guide rail, and the milling motor is mounted on the sliding seat;

[0020] The milling shaft is connected to the output shaft of the milling motor at its upper end and the milling disc is fixed at its lower end.

[0021] An elastic clamping element is placed between the sliding seat and the milling shaft to maintain a constant pressure between the milling disc and the workpiece.

[0022] Preferably, the feed drive is a servo electric cylinder with a built-in displacement sensor, used to drive the sliding block to move along the curved guide rail and provide real-time position feedback.

[0023] Preferably, it also includes a vision inspection module, which is installed on the top of the machine tool and is used to acquire images of the inner ring of the wheel hub workpiece and identify the position, area, shape and thickness distribution of the gating and riser.

[0024] Preferably, the controller is electrically connected to the rotary table assembly, the milling motor, the feed drive, the drilling unit, the high-pressure jet nozzle, and the vision inspection module, respectively; the controller is configured to dynamically adjust the yaw motion parameters of the milling unit according to the geometric features of the gating gate obtained by the vision inspection module, wherein the yaw motion parameters include yaw amplitude, yaw frequency, and yaw center offset.

[0025] Preferably, the controller is configured as follows:

[0026] For a circular riser with a small and uniform thickness, set a small yaw amplitude and a high yaw frequency;

[0027] For thicker circular risers, set a medium yaw amplitude and a medium-low yaw frequency;

[0028] For risers with uneven thickness distribution, set a larger sway amplitude and a lower sway frequency, and shift the sway center towards the side with greater thickness.

[0029] For irregularly shaped gates, the asymmetrical yaw amplitude is set according to its long axis direction.

[0030] Preferably, the controller is further configured to: collect the load current of the milling motor in real time during the milling process; when the load current exceeds the upper limit threshold, sequentially execute operations to increase the yaw amplitude, decrease the yaw frequency, and pause the feed to blow away aluminum chips; when the load current is lower than the lower limit threshold, execute operations to decrease the yaw amplitude and increase the yaw frequency.

[0031] Preferably, the controller is further configured to: after a gating and riser is removed, call the vision inspection module again to check the residual height; if the residual height exceeds the allowable value, automatically start the supplementary cutting program, set a small sway amplitude and a low feed speed for local milling.

[0032] Preferably, the controller is also equipped with a self-learning optimization function: it records the hub model, gating and riser characteristic parameters, actual yaw parameters, load current curve and residual height in each processing process, and automatically adjusts the preset rules of yaw parameters after statistical analysis to optimize the subsequent processing quality.

[0033] As can be seen from the above technical solutions, this application has the following beneficial effects:

[0034] 1. By using the offset design of the curved guide rail, the milling disc makes an eccentric oscillation during the cutting process, and the contact point changes dynamically; combined with visual inspection to identify the thickness of the gating gate, the oscillation amplitude, frequency and center offset are adaptively adjusted to achieve "more grinding in thick areas and less grinding in thin areas", avoiding local overload, making the wear of the milling disc more uniform, and extending the life of the single grinding interval.

[0035] 2. Monitor the milling motor load current in real time, dynamically adjust the yaw parameters and feed action according to overload or light load conditions, and automatically respond to situations such as poor chip removal or completion of cutting; visually inspect after cutting and automatically recut to ensure that the residual height of each gating gate meets the requirements. Attached Figure Description

[0036] 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 embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0037] Figure 1 A schematic diagram of the overall structure of an integrated drilling and milling removal device for automobile wheel hub risers provided by the present invention;

[0038] Figure 2This is a front view schematic diagram of the milling mechanism of an integrated drilling and milling removal device for automobile wheel hub risers provided by the present invention;

[0039] Figure 3 A schematic diagram of the overall structure of the milling unit of the integrated drilling and milling removal device for automobile wheel hub risers provided by the present invention;

[0040] Figure 4 This invention provides an exploded view of the rotary table assembly of an integrated drilling and milling removal device for automobile wheel hub risers;

[0041] Figure 5 This is a partial top view of a drilling and milling integrated removal device for the riser and gating system of an automobile wheel hub, provided by the present invention. Explanation of reference numerals in the attached figures

[0042] 10. Machine tools;

[0043] 20. Rotary worktable assembly; 21. Base; 22. Adjusting scroll wheel; 23. Gripper; 24. Cover plate;

[0044] 30. Milling unit; 31. Sliding seat; 32. Curved guide rail; 33. Milling motor; 34. Spline sleeve; 35. Elastic clamping element; 36. Milling shaft; 361. Milling disc;

[0045] 40. Feed drive components;

[0046] 50. Drilling unit;

[0047] 60. Air jet nozzle;

[0048] 70. Visual Inspection Module. Detailed Implementation

[0049] The following description is exemplary in nature and is not intended to limit the scope, application, or use of this disclosure. It should be understood that in all these figures, the same or similar reference numerals indicate the same or similar parts and features. The figures are merely schematic representations of the concept and principles of embodiments of this disclosure and do not necessarily show the specific dimensions and scale of the various embodiments of this disclosure. Certain details or structures of embodiments of this disclosure may be exaggerated in particular portions of certain figures.

[0050] Example 1, see Figure 1 - Figure 5 As shown, an integrated drilling and milling removal device for automobile wheel hub risers includes a machine base 10, a rotary worktable assembly 20, a milling unit 30, a feed drive 40, a drilling unit 50, and a high-pressure jet nozzle 60.

[0051] The upper surface of the machine base 10 has a chip discharge port. The rotary table assembly 20 includes a base 21, an adjusting scroll wheel 22, grippers 23, and a cover plate 24. The base 21 is rotatably connected to the upper surface of the machine base 10 via bearings and is driven by a servo motor to rotate around its own axis. The center of the base 21 is a completely hollowed-out circular channel for aluminum chips to fall. The interior of the base 21 has a circular cavity in which the adjusting scroll wheel 22 is installed. The lower end face of the adjusting scroll wheel 22 has a flat thread, and its outer circle has worm gear teeth. A worm gear that meshes with the worm gear teeth is installed on the side wall of the base 21. The outer end of the worm gear is hexagonal. Used for connecting crank handles or handwheels; three jaws 23 are evenly arranged circumferentially, and the bottom of each jaw 23 is provided with a rack that meshes with the planar thread, and the upper part of the jaw 23 is the clamping surface; the cover plate 24 is fixed to the upper surface of the base 21 by screws, and three radial guide grooves are provided on the cover plate 24, the upper part of the jaw 23 passes through the guide grooves and can slide along the guide grooves; when the worm is manually rotated, the worm drives the adjusting scroll wheel 22 to rotate, and the planar thread drives the three jaws 23 to move radially synchronously, so as to achieve centering and clamping of the hub workpiece; the self-locking characteristic of the worm gear keeps the clamping state stable without the need to continuously apply external force.

[0052] The milling unit 30 includes a sliding seat 31, a curved guide rail 32, a milling motor 33, a spline sleeve 34, an elastic clamping element 35, a milling shaft 36, and a milling disc 361. The curved guide rail 32 is fixedly mounted on the machine base 10 and located on one side of the rotary table assembly 20. The trajectory of the curved guide rail 32 is an arc, and the center of the arc is offset from the rotation center of the base 21 by a certain distance in the horizontal plane. The sliding seat 31 is slidably connected to the curved guide rail 32. The milling motor 33 is fixedly mounted on the sliding seat 31. On the seat 31, its output shaft is connected to the upper end of the milling shaft 36 through the spline sleeve 34, and the lower end of the milling shaft 36 is fixed with a milling disc 361; the milling shaft 36 is mounted in a floating seat through a bearing, and an elastic clamping element 35 is provided between the floating seat and the sliding seat 31. The elastic clamping element 35 is a compression spring, which is used to maintain a constant milling pressure when the milling disc 361 contacts the workpiece; the milling layer of the milling disc 361 is a cubic boron nitride or diamond electroplating layer to adapt to the milling of aluminum alloy materials.

[0053] The feed drive unit 40 is a servo electric cylinder, with its two ends hinged to the machine base 10 and the sliding seat 31 respectively, and is used to drive the sliding seat 31 to move along the curved guide rail 32; the feed drive unit 40 has a built-in displacement sensor for real-time feedback of the position of the sliding seat 31.

[0054] The drilling unit 50 is independently installed on the other side of the machine tool 10 and is spatially offset from the milling unit 30. The drilling unit 50 includes a drilling spindle 51 and a drill bit 52. The drilling spindle 51 is driven by an independent servo motor and can make linear feed motion along the vertical guide rail. The initial position of the drilling unit 50 is far away from the movement range of the milling unit 30 to avoid interference.

[0055] The high-pressure jet nozzle 60 is fixed above the machine base 10 by a bracket. Its outlet is tilted downward and aligned with the contact area between the milling disc 361 and the hub workpiece. The high-pressure jet nozzle 60 is connected to an external compressed air source through a pipeline and is controlled by a solenoid valve to blow the aluminum chips generated during milling away from the workpiece surface and allow them to fall into the chip collection box through the hollow channel of the base 21.

[0056] Example 2, based on the above examples, further includes a vision inspection module 70; the vision inspection module 70 includes an industrial camera, a ring light source, and an image processing unit, the image processing unit being integrated into the controller; the industrial camera and the ring light source are mounted on the top of the machine base 10, with the lenses facing downwards, covering the entire field of view of the rotary table assembly 20; the ring light source provides uniform illumination; the vision inspection module 70 is used to acquire images of the inner ring of the wheel hub workpiece and identify the location, area, shape, and thickness distribution of the remaining gating and riser.

[0057] The controller is an industrial computer or a programmable logic controller, which is electrically connected to the drive motor of the rotary table assembly 20, the milling motor 33, the feed drive 40, the drilling unit 50, the solenoid valve of the high-pressure jet nozzle 60, and the vision inspection module 70, respectively; the controller has a preset control program to coordinate the actions of each component and execute the following control logic.

[0058] The purpose is to use the vision inspection module 70 to obtain the geometric features of the gating riser of the inner ring of the wheel hub workpiece, and to dynamically adjust the yaw motion parameters of the milling unit 30 according to the features, so that the cutting trajectory of the milling disc 361 is adaptively matched with the actual shape of the gating riser, thereby achieving efficient and uniform removal and extending the service life of the milling disc.

[0059] Specifically, after the wheel hub workpiece is clamped, the controller drives the rotary table assembly 20 to rotate at a low speed and uniformly for one revolution, while the vision inspection module 70 continuously acquires images; the controller stitches together the acquired multiple frames of images to generate a panoramic unfolded image of the inner ring of the wheel hub.

[0060] The panoramic image is sequentially processed by grayscale conversion, median filtering, and threshold segmentation to extract the contour region of the remaining gating and riser area. For each gating and riser area, the controller calculates the following features:

[0061] The polar coordinates corresponding to the centroid of the contour are used as the basis for subsequent rotation table positioning; the number of pixels within the contour is converted into the actual area to estimate the amount of work to be removed; the shape derived from the shadow method is used to estimate the relative thickness based on the grayscale changes in the gating and riser area in the image, generating a thickness distribution map; this distribution map reflects the differences in residual height at different parts of the gating and riser; the roundness of the contour is calculated, and the roundness value is used to distinguish between round risers and irregularly shaped gatings (such as elongated gatings), with different types of gating and risers corresponding to different yaw strategies.

[0062] More specifically, the yaw motion is achieved by the reciprocating sliding of the sliding seat 31 along the curved guide rail 32, and its motion trajectory is a sine wave. The controller presets the following yaw parameters for each gating gate: the amplitude of the reciprocating movement of the sliding seat 31 along the curved guide rail 32 on one side; the number of reciprocations per unit time; and the offset of the average position of the sliding seat 31 relative to the geometric center of the gating gate in the tangential direction of the curved guide rail.

[0063] Furthermore, for circular risers with a small thickness and uniform thickness distribution, the controller is set to a small sway amplitude and a high sway frequency to achieve rapid removal while avoiding excessive swaying that would reduce efficiency.

[0064] For thicker circular risers, the controller is set to a medium yaw amplitude and a medium-low yaw frequency to control the depth of cut per pass and prevent overloading of the milling disc.

[0065] For risers with uneven thickness distribution, the controller is set to a larger oscillation amplitude and a lower oscillation frequency, so that the milling disc covers a wider area during the oscillation process. At the same time, the controller calculates the center of gravity of the thickness distribution and shifts the oscillation center to the side with greater thickness, thereby increasing the milling time of the thicker area during the oscillation process and achieving the effect of "more grinding in thick areas and less grinding in thin areas".

[0066] For irregularly shaped gates, such as long strips, the controller sets an asymmetrical yaw amplitude according to its long axis: a larger yaw amplitude is used along the long axis to cover the entire gate length, and a smaller yaw amplitude is used along the short axis to avoid milling into non-target areas; the yaw frequency is set to a medium value to ensure the continuity of the yaw trajectory; the reference values ​​of the above parameters are pre-stored by the controller according to the typical gate dimensions in the wheel hub model database, and are allowed to be dynamically corrected during subsequent self-learning.

[0067] Furthermore, during the milling process, the controller collects the load current of the milling motor 33 and the position signal of the built-in displacement sensor of the feed drive 40 in real time.

[0068] When the load current exceeds the upper limit threshold of the normal milling current and the duration exceeds the set time, the controller determines that it is in an overload state, indicating that the contact area between the milling disc 361 and the gating gate is too large or the cutting depth is too large, or that aluminum chips are accumulating in the milling area; at this time, the controller performs the following operations in sequence:

[0069] Increase the yaw amplitude to allow the milling disc 361 to swing over a wider range, thus dispersing the contact area;

[0070] Reduce the yaw frequency and the number of impacts per unit time to make the milling force more stable;

[0071] Pause the feed motion for a preset time, allowing the milling disc 361 to oscillate at the current height, and use the high-pressure jet nozzle 60 to blow away the accumulated aluminum chips;

[0072] Once the load current returns to the normal range, the controller gradually restores the yaw parameter to the preset value and continues feeding.

[0073] When the load current is lower than the lower limit threshold of the normal milling current and the duration exceeds the set time, the controller determines that it is in a light load state, indicating that the riser and gate at that location have been basically removed or the milling disk 361 is not making good contact with the workpiece. At this time, the controller reduces the yaw amplitude and increases the yaw frequency, so that the milling disk 361 concentrates on milling the remaining high points. At the same time, the controller compares the current position fed back by the displacement sensor with the preset feed depth, based on the visually estimated thickness minus the safety margin. If the current position has reached or exceeded the preset feed depth, the controller determines that the riser and gate removal is complete and issues a retraction command.

[0074] After a riser is removed, the feed drive 40 returns the milling unit 30 to the standby position; the controller calls the vision inspection module 70 again to capture an image of the area where the riser is located and extract the residual height; if the residual height exceeds the preset allowable value, the controller automatically starts the supplementary cutting program: setting a small yaw amplitude and a low feed speed, only performing local milling on the residual area; during the supplementary cutting process, the load current is also monitored in real time to adjust the parameters; after the supplementary cutting is completed, a visual inspection is performed again until the residual height meets the requirements.

[0075] Furthermore, the controller records data from each processing step into a non-volatile memory. This data includes: the hub model, characteristic parameters of each riser and gate, including area, thickness distribution, shape type, and actual yaw parameters used, including amplitude, frequency, center offset, load current curve during milling, and residual height after removal. After processing a certain number of hubs of the same model, the controller performs statistical analysis on the recorded data. If it is found that the average residual height is too high or the milling disc wear rate is abnormal for a certain type of riser and gate, the controller automatically adjusts the corresponding preset rules for yaw parameters, such as appropriately increasing the yaw amplitude, reducing the feed rate, or adjusting the yaw center offset, and uses the optimized parameters in subsequent processing to gradually improve the processing quality.

[0076] Working principle: The operator places the cast wheel hub workpiece horizontally on the rotary table assembly 20 with the inner ring of the wheel hub facing upwards; the operator manually rotates the handwheel at the outer end of the worm gear, which drives the adjusting scroll wheel 22 to rotate. The flat thread on the lower end face of the adjusting scroll wheel 22 drives the three jaws 23 to move radially synchronously along the guide groove of the cover plate 24, centering and clamping the wheel hub workpiece; due to the self-locking characteristics of the worm gear, no external force needs to be continuously applied after clamping, and the clamping state is stable;

[0077] The controller controls the rotary table assembly 20 to rotate at a low speed and uniform speed for one revolution, while the vision inspection module 70 continuously acquires images of the inner ring of the wheel hub; the controller stitches and processes the acquired images, extracts the location, area, shape and thickness distribution features of all gating and riser gates, and stores these feature data in the order of gating and riser gates.

[0078] The controller processes each riser and gating gate in a preset order:

[0079] The rotary table assembly 20 rotates, positioning the current gating gate directly below the milling disc 361;

[0080] Start the milling motor 33 to bring the milling disc 361 to its operating speed; at the same time, open the high-pressure jet nozzle 60.

[0081] The controller calls the corresponding yaw motion preset parameters based on the characteristic parameters of the gating riser to generate the yaw trajectory;

[0082] The feed drive 40 pushes the slide block 31 to move along the curved guide rail 32, so that the milling disc 361 gradually approaches the gate and riser; during the feed process, the slide block 31 simultaneously oscillates back and forth according to the preset sway amplitude and frequency; when the milling disc 361 contacts the gate and riser, the elastic clamping member 35 provides constant milling pressure.

[0083] During the milling process, the controller monitors the load current of the milling motor 33 in real time and dynamically adjusts the yaw parameters according to load changes. For example, when overloaded, the yaw amplitude is increased, the frequency is reduced, and the feed is paused; when lightly loaded, the yaw amplitude is reduced and the frequency is increased, thus achieving adaptive control.

[0084] When the controller determines that the cut-off is completed based on the sudden drop in load current and the feed depth reaching the preset value, the feed drive 40 will return the milling unit 30 to the standby position;

[0085] The visual inspection module 70 inspects the area of ​​the gating and riser after it is cut off; if the residual height exceeds the standard, the controller automatically performs supplementary cutting until it is qualified; the data of this cutting is recorded for self-learning optimization.

[0086] After all risers and gating gates are removed and inspected, the controller controls the rotary table assembly 20 to rotate, aligning the pre-set air nozzle hole position on the wheel hub workpiece (which can be simultaneously identified by the vision inspection module in step two, or obtained according to the wheel hub model template) below the drill bit 52 of the drilling unit 50; the drilling unit 50 starts, the drilling spindle 51 rotates and feeds downwards, drilling the air nozzle hole on the wheel hub workpiece; the drilling depth is controlled by the displacement sensor, and after drilling through, the drilling spindle 51 returns to its original position;

[0087] The controller sends a processing completion signal; the operator rotates the handwheel in the opposite direction, the worm gear drives the adjusting scroll wheel 22 to reverse, and the three grippers 23 simultaneously loosen radially, so that the processed wheel hub workpiece can be removed.

[0088] The exemplary implementation of the solution proposed in this disclosure has been described in detail above with reference to preferred embodiments. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the spirit of this disclosure, and various combinations can be made to the various technical features and structures proposed in this disclosure without exceeding the protection scope of this disclosure, which is determined by the appended claims.

Claims

1. A drilling and milling integrated removal device for the riser and gating gate of an automobile wheel hub, characterized in that: include: Machine (10); A rotary worktable assembly (20) is rotatably connected to the machine base (10) and has a hollow center, for horizontal placement and driving the hub workpiece to rotate; The milling unit (30) is movably mounted on the machine base (10) and includes a milling disc (361) and a milling motor (33) that drives the milling disc to rotate. The milling disc (361) is used to mill and remove the gating and riser of the inner ring of the wheel hub workpiece. The feed drive (40) is connected between the machine base (10) and the milling unit (30) and is used to drive the milling unit (30) to move; The drilling unit (50) is independently installed on the machine base (10) and is used to drill air nozzle holes on the wheel hub workpiece; A high-pressure jet nozzle (60) is installed above the machine base (10), with its outlet aligned with the contact area between the milling disc (361) and the hub workpiece.

2. The integrated drilling and milling removal device for automobile wheel hub risers according to claim 1, characterized in that, The rotary table assembly (20) includes: The base (21) is rotatably connected to the machine base (10) and has a hollow center; Adjust the vortex wheel (22), which is rotatably installed inside the base (21). Its lower end face is provided with a flat thread, and its outer circle is provided with worm gear teeth. The worm is installed on the side wall of the base (21) and meshes with the worm gear teeth; there are multiple jaws (23) evenly arranged in the circumference, and each jaw (23) has a rack at the bottom that meshes with the planar thread; The cover plate (24) is fixed to the upper surface of the base (21) and has a radial guide groove for the gripper (23) to pass through.

3. The integrated drilling and milling removal device for automobile wheel hub risers according to claim 2, characterized in that, The milling unit (30) also includes: The curved guide rail (32) is fixed on the machine tool (10). Its trajectory is an arc, and the center of the arc is offset from the rotation center of the rotary table assembly (20) in the horizontal plane. The sliding seat (31) is slidably connected to the curved guide rail (32), and the milling motor (33) is mounted on the sliding seat (31); The milling shaft (36) is connected to the output shaft of the milling motor (33) at its upper end and the milling disc (361) is fixed at its lower end. An elastic clamping element (35) is disposed between the sliding seat (31) and the milling shaft (36) to maintain a constant pressure between the milling disc (361) and the workpiece.

4. The integrated drilling and milling removal device for automobile wheel hub risers according to claim 3, characterized in that, The feed drive (40) is a servo electric cylinder with a built-in displacement sensor, used to drive the sliding seat (31) to move along the curved guide rail (32) and provide real-time position feedback.

5. The integrated drilling and milling removal device for automobile wheel hub risers according to claim 1, characterized in that, It also includes a vision inspection module (70), which is installed on the top of the machine tool (10) to collect images of the inner ring of the wheel hub workpiece and identify the position, area, shape and thickness distribution of the gating and riser.

6. The integrated drilling and milling removal device for automobile wheel hub risers according to claim 5, characterized in that, The controller is electrically connected to the rotary table assembly (20), the milling motor (33), the feed drive (40), the drilling unit (50), the high-pressure jet nozzle (60), and the vision inspection module (70). The controller is configured to dynamically adjust the yaw motion parameters of the milling unit (30) based on the geometric features of the gating gate obtained by the vision inspection module. The yaw motion parameters include yaw amplitude, yaw frequency, and yaw center offset.

7. The integrated drilling and milling removal device for automobile wheel hub risers according to claim 6, characterized in that, The controller is configured as follows: For a circular riser with a small and uniform thickness, set a small yaw amplitude and a high yaw frequency; For thicker circular risers, set a medium yaw amplitude and a medium-low yaw frequency; For risers with uneven thickness distribution, set a larger sway amplitude and a lower sway frequency, and shift the sway center towards the side with greater thickness. For irregularly shaped gates, the asymmetrical yaw amplitude is set according to its long axis direction.

8. The integrated drilling and milling removal device for automobile wheel hub risers according to claim 6, characterized in that, The controller is also configured to: collect the load current of the milling motor (33) in real time during the milling process; when the load current exceeds the upper limit threshold, sequentially execute the operations of increasing the yaw amplitude, decreasing the yaw frequency, and pausing the feed to blow away aluminum chips; when the load current is lower than the lower limit threshold, execute the operations of decreasing the yaw amplitude and increasing the yaw frequency.

9. The integrated drilling and milling removal device for automobile wheel hub risers according to claim 6, characterized in that, The controller is also configured to: after a gating and riser is removed, the visual inspection module (70) is called again to check the residual height. If the residual height exceeds the allowable value, the supplementary cutting program is automatically started, and a smaller sway amplitude and a lower feed speed are set for local milling.

10. The integrated drilling and milling removal device for automobile wheel hub risers according to claim 6, characterized in that, The controller is also equipped with a self-learning optimization function: it records the hub model, gating and riser characteristic parameters, actual yaw parameters, load current curve and residual height in each processing step, and automatically adjusts the preset rules of yaw parameters after statistical analysis to optimize the subsequent processing quality.

Images