Drilling and tapping integrated machine for aluminum alloy wheel hub machining

Abstract

The application relates to the field of hub machining, in particular to a drilling and tapping integrated machine for aluminum alloy hub machining, which comprises a machine tool base, a clamping unit arranged on the machine tool base, and a machining unit arranged on the clamping unit. Different types of hubs are clamped and centered by the centering block I and the centering block II, and the thin wall of the hub is axially supported or clamped by cooperating with the pressure head, so that the stability of the clamped part is enhanced, the thin wall deformation is inhibited by the reverse top support, the bulging height of the drilling part of the drill bit is reduced, the drill bit and the tap are driven to move up and down linearly through the movable plate, the drilling and tapping operation on the machining position of the hub is realized through one complete activity stroke of 'down-up-down', the single piece beat is shortened, the tap loss is reduced, and the tap life is prolonged.

Description

TECHNICAL FIELD

[0001] The application relates to the field of hub machining, in particular to an aluminum alloy hub machining drilling and tapping integrated machine. BACKGROUND

[0002] In the processing of an electric scooter hub, drilling and tapping operations are usually required on the hub according to the manufacturing and assembly requirements, so as to facilitate the installation of accessories. Aluminum alloy has become the mainstream material for manufacturing scooter hubs due to its light weight and high strength. However, the thickness of the sidewall of a scooter hub is usually only 2.5-3.0 mm, which belongs to a typical thin-walled part. In the drilling process of the existing drilling and tapping equipment, the drill bit will generate an axial thrust on the hub wall, and the material around the hole will be pressed outward, resulting in a "bulge" or local convex state on the outlet side, thereby causing the thread perpendicularity to be out of tolerance after tapping, and the bolt to be prone to loosening in the later period. Moreover, the existing solutions increase a servo sliding table and a floating clamp on the machine tool, but still adopt a serial mode of drilling first and tapping later, the processing cycle is long, and the thin-walled deformation cannot be completely eliminated. SUMMARY

[0003] In view of the above or the problems existing in the prior art that the drill bit will generate an axial thrust on the hub wall in the drilling process of the existing drilling and tapping equipment, the material around the hole will be pressed outward, resulting in a "bulge" or local convex state on the outlet side, thereby causing the thread perpendicularity to be out of tolerance after tapping, and the bolt to be prone to loosening in the later period, the application is proposed.

[0004] Therefore, the purpose of the application is to provide an aluminum alloy hub machining drilling and tapping integrated machine.

[0005] To solve the above technical problems, the application provides the following technical scheme: a machine tool base, a clamping unit arranged on the machine tool base, and a machining unit arranged on the clamping unit; the clamping unit comprises a support assembly arranged on the machine tool base, a support plate arranged on the support assembly, and a clamping assembly arranged on the support plate; the machining unit comprises a support plate one arranged on the machine tool base, a fixed rod arranged on the support plate one, a support plate two arranged on the fixed rod, and a machining assembly arranged on the support plate two; the clamping assembly is used for positioning and clamping the hub in cooperation with the support plate and the support assembly, the hub is driven to rotate, the machining assembly is used for forming a reverse support around the position to be drilled on the hub, and the machining assembly is used for cooperating with the rapid linear motion of the machining assembly to perform drilling and tapping operations on the target position.

[0006] As a preferred scheme of the drilling and tapping integrated machine for aluminum alloy wheel hub machining, the supporting assembly comprises a servo motor one arranged on the machine tool base, a lead screw one arranged on the machine tool base for matching the servo motor one, a supporting slide rod one arranged on the machine tool base, and a connecting block arranged on the lead screw one and the supporting slide rod one; the lead screw one is connected with the connecting block through threads, and the supporting slide rod one is connected with the connecting block through sliding.

[0007] As a preferred scheme of the drilling and tapping integrated machine for aluminum alloy wheel hub machining, the clamping assembly comprises a lifting seat arranged on the supporting plate, a center rod arranged on the lifting seat, a centering block one arranged at the bottom of the center rod, a centering block two arranged on the center rod, a lead screw two arranged on the center rod, and a connecting sleeve arranged on the centering block two for matching the lead screw two.

[0008] As a preferred scheme of the drilling and tapping integrated machine for aluminum alloy wheel hub machining, the centering block one is in the shape of a circular truncated cone with the upper part being narrow and the lower part being wide; the centering block two is movably arranged on the center rod, and the centering block two is similar in overall shape to the centering block one, and the narrow end of the cross section of the centering block two is first inserted through the wheel hub.

[0009] As a preferred scheme of the drilling and tapping integrated machine for aluminum alloy wheel hub machining, a motor is arranged in the lifting seat to drive the center rod to rotate.

[0010] As a preferred scheme of the drilling and tapping integrated machine for aluminum alloy wheel hub machining, the machining assembly comprises a fixed plate on the supporting plate two, a movable plate slidably arranged on the fixed plate, a hydraulic cylinder arranged on the fixed plate, an output end of the hydraulic cylinder being fixedly connected with the movable plate, a connecting piece arranged on the hydraulic cylinder, a drill and a tap arranged on the connecting piece, and a stabilizing piece arranged on the fixed plate.

[0011] As a preferred scheme of the drilling and tapping integrated machine for aluminum alloy wheel hub machining, the sliding path of the movable plate on the fixed plate is consistent with the driving direction of the hydraulic cylinder.

[0012] As a preferred scheme of the drilling and tapping integrated machine for aluminum alloy wheel hub machining, the connecting piece comprises a mounting block arranged on the movable plate, a lead screw three arranged on the movable plate, a supporting slide rod three arranged on the movable plate, a threaded sleeve arranged on the mounting block and connected with the lead screw three through threads, an outer gear ring arranged on the threaded sleeve, and a worm arranged on the mounting block and matched with the threaded sleeve.

[0013] As a preferred scheme of the drilling and tapping integrated machine for aluminum alloy wheel hub machining, the mounting block is connected with the supporting slide rod three through sliding, two groups of mounting blocks are arranged on the lead screw three, a drill and a tap are arranged on the two groups of mounting blocks respectively, and the moving paths of the drill and the tap are kept on the same straight line.

[0014] As a preferred scheme of the drilling and tapping integrated machine for aluminum alloy wheel hub processing, the stabilizing member comprises a servo motor two arranged on the fixed plate, a bidirectional screw rod arranged on the driving end of the servo motor two, a supporting slide rod two arranged on the fixed plate, a connecting plate slidingly arranged on the fixed plate and the movable plate, the connecting plate is slidingly connected with the supporting slide rod two, and the connecting plate is threadedly connected with the bidirectional screw rod, a group of the bidirectional screw rods are arranged at both ends of the bidirectional screw rod respectively, and a pressing head is arranged on the connecting plate.

[0015] The drilling and tapping integrated machine for aluminum alloy wheel hub processing has the following beneficial effects: the centering block one and the centering block two are used to center and clamp different types of wheel hubs, the pressing head is used to axially support or clamp the thin wall of the wheel hub, the stability of the clamped part is enhanced, the reverse top support is used to inhibit the deformation of the thin wall, the bulging height of the drilling part of the drill bit is reduced, the movable plate drives the drill bit and the tap to move up and down in a straight line, the drilling and tapping operation on the machining position of the wheel hub is realized through one complete movement stroke of "down-up-down", the single piece cycle is shortened, the tap consumption is reduced, and the tap life is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0017] Figure 1 It is a whole structure schematic view of the drilling and tapping integrated machine for aluminum alloy wheel hub processing.

[0018] Figure 2 It is a side view structure schematic view of the drilling and tapping integrated machine for aluminum alloy wheel hub processing.

[0019] Figure 3 It is a structure schematic view of the supporting assembly of the drilling and tapping integrated machine for aluminum alloy wheel hub processing.

[0020] Figure 4 It is a structure schematic view of the clamping assembly of the drilling and tapping integrated machine for aluminum alloy wheel hub processing.

[0021] Figure 5 It is a structure schematic view of the machining assembly of the drilling and tapping integrated machine for aluminum alloy wheel hub processing.

[0022] Figure 6 It is a structure schematic view of the stabilizing member of the drilling and tapping integrated machine for aluminum alloy wheel hub processing.

[0023] Figure 7The structural schematic view of the connecting piece of the drilling and tapping integrated machine for aluminum alloy hub machining.

[0024] Figure 8 The sectional structural schematic view of the mounting block of the drilling and tapping integrated machine for aluminum alloy hub machining.

[0025] In the figure: 1, machine tool base; 2, clamping unit; 21, support assembly; 211, servo motor one; 212, screw one; 213, support sliding rod one; 214, connecting block; 22, support plate; 23, clamping assembly; 231, lifting seat; 232, center rod; 233, centering block one; 234, centering block two; 235, screw two; 236, connecting sleeve; 3, machining unit; 31, support plate one; 32, fixed rod; 33, support plate two; 34, machining assembly; 341, fixed plate; 342, movable plate; 343, hydraulic cylinder; 344, connecting piece; 3441, mounting block; 3442, screw three; 3443, support sliding rod three; 3444, threaded sleeve; 3445, outer gear ring; 3446, worm; 345, drill bit; 346, tap; 347, stabilizing piece; 3471, servo motor two; 3472, bidirectional screw; 3473, support sliding rod two; 3474, connecting plate; 3475, abutting head; 4, hub. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0027] Example 1, refer to Figure 1 and Figure 2 , the first embodiment of the present application, the embodiment provides a kind of drilling and tapping integrated machine for aluminum alloy hub machining, it includes machine tool base 1, it plays the role of supporting entire equipment, setting on machine tool base 1 clamping unit 2, for receiving and clamping machining unit 3, to the centering holding of hub 4, facilitate drilling and tapping operation, and setting on clamping unit 2 machining unit 3, for further stabilization to the position to be machined on hub 4, and carry out drilling and tapping operation;

[0028] Clamping unit 2 includes support assembly 21 set on machine tool base 1, for receiving and releasing hub 4, facilitate feeding and discharging to hub 4, support plate 22 set on support assembly 21, play the role of support and connection, and clamping assembly 23 set on support plate 22, for the centering clamping of hub 4 placed on support plate 22, keep the stable state of hub 4 when machining;

[0029] The processing unit 3 comprises a support plate one 31 arranged on the machine tool base 1, which serves as a support, a fixed rod 32 arranged on the support plate one 31, which serves as a connection, a support plate two 33 arranged on the fixed rod 32, which serves as a support, and a processing assembly 34 arranged on the support plate two 33, which is used for drilling and tapping work on the hub 4.

[0030] The hub 4 is positioned and clamped by the clamping assembly 23 cooperating with the support plate 22 and the support assembly 21, and the hub 4 is driven to rotate, and the processing assembly 34 forms reverse support around the position to be drilled on the hub 4, and cooperates with the rapid linear motion of the processing assembly 34 to drill and tap the target position.

[0031] In summary, first, the support plate 22 is pushed out by the support assembly 21, so that the support plate 22 is fully exposed, at this time the hub 4 is placed on the support plate 22 by the clamping assembly 23, then the hub 4 is centered and clamped by the clamping assembly 23, so that the hub 4 is kept in a stable neutral state, at this time the support plate 22 is driven by the support assembly 21 to approach the processing assembly 34, and when the support plate 22 moves to the appropriate position, the two sides of a position to be processed on the hub 4 are reversely supported by the processing assembly 34, which reduces the deformation degree during drilling, at this time the processing assembly 34 moves up and down to form drilling and tapping of the target position by one motion, when the one formation is completed, the reverse support of the hub 4 by the processing assembly 34 is released, at this time the hub 4 is rotated by a certain angle by the clamping assembly 23, so that the next position to be processed is in the processing direction of the processing assembly 34, at this time the above working process of the processing assembly 34 is repeated to realize continuous drilling and tapping of the hub 4.

[0032] Embodiment 2, refer to Figures 1-4 , the second embodiment of the present application, which is different from the previous embodiment: provides the specific structure of the clamping unit 2 of the drilling and tapping all-in-one machine for aluminum alloy hub processing. Compared with embodiment 1, further, the support assembly 21 comprises a servo motor one 211 arranged on the machine tool base 1, which is used for providing power, a lead screw one 212 arranged on the machine tool base 1 for cooperating with the servo motor one 211, which is used for driving rotation, a support slide rod one 213 arranged on the machine tool base 1, which serves as a sliding support, and a connecting block 214 arranged on the lead screw one 212 and the support slide rod one 213, which serves as a connection and support.

[0033] The lead screw one 212 is connected with the connecting block 214 through threads, the support slide rod one 213 is connected with the connecting block 214 through sliding, and the lead screw one 212 drives the connecting block 214 to move back and forth on the support slide rod one 213 through cooperation with the servo motor one 211.

[0034] The support plate 22 is fixedly arranged on the connecting block 214, and is used for moving back and forth together with the connecting block 214, thereby facilitating feeding and discharging of the hub 4.

[0035] The clamping assembly 23 comprises a lifting seat 231 arranged on the support plate 22 and used for supporting, wherein the lifting seat 231 is provided with a lifting structure for small-range lifting movement, the lifting structure is a prior art and will not be described in detail, a center rod 232 arranged on the lifting seat 231 and used for positioning and supporting, a centering block one 233 arranged at the bottom of the center rod 232, a centering block two 234 arranged on the center rod 232, the centering block one 233 cooperates with the centering block two 234 to centrally clamp the hub, thereby keeping the hub 4 in a horizontal state, a lead screw two 235 arranged on the center rod 232, and a connecting sleeve 236 arranged on the centering block two 234 and used for cooperating with the lead screw two 235, the lead screw two 235 cooperates with the connecting sleeve 236 to move the centering block two 234 up and down on the center rod 232, and cooperates with the centering block one 233 to horizontally clamp or release the hub 4 on the center rod 232.

[0036] The centering block one 233 is in the shape of a circular truncated cone with a narrow upper part and a wide lower part, so that the centering block one 233 can be adapted to different models of hubs.

[0037] The centering block two 234 is movably arranged on the center rod 232, and has a similar shape to the centering block one 233, wherein a cross-sectional diameter of one end of the centering block two 234 is smaller than a mounting hole diameter of the hub, and a cross-sectional diameter of the other end of the centering block two 234 is larger than the mounting hole diameter of the hub, the narrow end of the centering block two 234 is first inserted through the hub 4, so that, when the centering block two 234 and the centering block one 233 are clamped, the hub is kept coaxial with the center rod 232 through abutting of side walls of the centering block two 234 and the centering block one 233 and inner walls of the hub mounting hole, so that the centering block two 234 cooperates with the centering block one 233 to horizontally clamp different models of hubs.

[0038] The lifting seat 231 is provided with a motor for driving the center rod 232 to rotate, so as to drive the hub 4 to rotate together with the centering block one 233 and the centering block two 234, and to realize continuous machining together with the machining assembly 34.

[0039] The remaining structures are the same as those in Embodiment 1.

[0040] In summary, when drilling and tapping operation is needed for the wheel hub 4, first, the servo motor 211 is started to drive the screw rod 212 to rotate. At this time, the connecting block 214 cooperates with the rotation of the screw rod 212 to drive the support plate 22 to move outward, so that the space around the centering block 233 is fully exposed. At this time, the connecting sleeve 236 is rotated to make the centering block 234 move away from the center rod 232 through the action of the screw rod 235. At this time, the wheel hub 4 is placed on the lifting seat 231 through the center rod 232. At this time, the centering block 233 is in contact with the centering block 233. At this time, the centering block 234 is sleeved on the center rod 232. At this time, the centering block 234 is driven to move downward through the action of the connecting sleeve 236 and the screw rod 235. At this time, the bottom of the centering block 234 enters the wheel hub 4 first until the outer wall of the centering block 234 fully matches the wheel hub 4. At this time, the outer wall of the centering block 233 fully matches the wheel hub 4 under the extrusion of the centering block 234. At this time, the center rod 232 is in the center position of the wheel hub 4. At this time, the wheel hub 4 is kept in a horizontal stable state under the action of the centering block 233 and the centering block 234. At this time, the servo motor 211 is started again to drive the screw rod 212 to reverse, and the wheel hub 4 is moved through the support plate 22. At this time, the height of the wheel hub 4 can be adjusted through the lifting seat 231 to keep the wheel hub 4 in a convenient processing state. At this time, the machining assembly 34 is started to perform counter-supporting and drilling and tapping operation on the position to be processed on the wheel hub 4. The wheel hub 4 is driven to rotate through the center rod 232 to continuously drill and tap.

[0041] Embodiment 3, refer to Figures 1-8 , the second embodiment of the application, different from the previous embodiment is: the specific structure of the machining unit 3 of the drilling and tapping all-in-one machine for aluminum alloy wheel hub machining is provided. Compared with embodiment 2, further, the machining assembly 34 includes the fixed plate 341 on the support plate 2 33, which plays a role of fixing and connecting, the movable plate 342 which is slidably arranged on the fixed plate 341, which plays a role of connecting, the hydraulic cylinder 343 which is arranged on the fixed plate 341, which is used to provide power to drive the movable plate 342 to move up and down, the output end of the hydraulic cylinder 343 is fixedly connected with the movable plate 342, the connecting piece 344 which is arranged on the hydraulic cylinder 343, the drill bit 345 and the tap 346 which are arranged on the connecting piece 344, the connecting piece 344 is used to install and connect the drill bit 345 and the tap 346, and the machining assembly 34 is used to drill and tap the wheel hub 4 by moving up and down with the movable plate 342, and the stabilizing piece 347 which is arranged on the fixed plate 341, which is used to counter-support the position to be processed on the wheel hub 4 to reduce the deformation degree of the processing position during processing.

[0042] Among them, the sliding path of the movable plate 342 on the fixed plate 341 is consistent with the driving direction of the hydraulic cylinder 343. Through such arrangement, the movable plate 342 slides back and forth on the fixed plate 341 under the driving of the hydraulic cylinder 343.

[0043] The connecting piece 344 comprises a mounting block 3441 arranged on the movable plate 342 and serving as a connecting piece, a screw rod three 3442 arranged on the movable plate 342 and serving as a supporting piece, a supporting slide rod three 3443 arranged on the movable plate 342 and serving as a sliding limiting piece, a threaded sleeve 3444 arranged on the mounting block 3441 and threadedly connected with the screw rod three 3442 and serving as a rotating piece, an external gear ring 3445 arranged on the threaded sleeve 3444 and serving as a driven piece, and a worm 3446 arranged on the mounting block 3441 and cooperating with the threaded sleeve 3444 and serving as a driving piece.

[0044] The mounting block 3441 is slidably connected with the supporting slide rod three 3443, and two groups of mounting blocks 3441 are arranged on the screw rod three 3442. A drill bit 345 and a tap 346 are arranged on the two groups of mounting blocks 3441, respectively. The moving paths of the drill bit 345 and the tap 346 are kept on the same straight line. Through such an arrangement, the drill bit 345 and the tap 346 can perform a “down-up-down” movement stroke on the connecting piece 344 in cooperation with the movable plate 342, so as to perform drilling and tapping operations on a position to be machined on the hub 4, and the drilling and tapping pace is accelerated.

[0045] The stabilizing piece 347 comprises a servo motor two 3471 arranged on the fixed plate 341 and serving as a power source, a bidirectional screw rod 3472 arranged on the driving end of the servo motor two 3471 and serving as a rotating piece cooperating with the driving of the servo motor two 3471, a supporting slide rod two 3473 arranged on the fixed plate 341 and serving as a sliding limiting piece, a connecting plate 3474 slidably arranged on the fixed plate 341 and the movable plate 342, the connecting plate 3474 being slidably connected with the supporting slide rod two 3473 and being arranged on the bidirectional screw rod 3472 in a threaded manner, one group of the bidirectional screw rod 3472 being arranged at each end of the bidirectional screw rod 3472 and serving as a piece for cooperation with the rotation of the bidirectional screw rod 3472 to open or close, and a pressing head 3475 arranged on the connecting plate 3474 and serving as a piece for cooperation with the opening or closing of the connecting plate 3474 to oppositely support the two sides of the position to be machined on the hub 4 and suppress the deformation of the thin wall of the hub 4 during drilling by the drill bit 345.

[0046] The remaining structures are the same as those in Embodiment 2.

[0047] When the lifting seat 231 drives the hub 4 to be processed to approach the machining assembly 34 to a reasonable position, the servo motor two 3471 is started at this time, driving the bidirectional screw rod 3472 to rotate, and the abutting head 3475 is away from each other under the action of the connecting plate 3474 at this time, until the other side of the thin wall of the hub 4 is supported, the worm 3446 is rotated at this time, the threaded sleeve 3444 is driven to rotate through the external gear ring 3445, the position height of the drill bit 345 and the tap 346 is adjusted under the action of the screw rod three 3442, the drill bit 345 and the tap 346 are adjusted to the position to be processed on the hub 4, the drill bit 345 and the tap 346 are started at this time, the hydraulic cylinder 343 drives the mounting block 3441 to move up and down through the movable plate 342, the drill bit 345 and the tap 346 move with the mounting block 3441 at this time, the drill bit 345 approaches the position to be processed on the hub 4 and drills a hole, since the mounting block 3441 is connected with the supporting slide rod three 3443 through sliding, when the worm 3446 cooperates with the external gear ring 3445 to lock the position of the mounting block 3441 on the screw rod three 3442, the drill bit 345 and the tap 346 can work stably on the mounting block 3441 at this time, the abutting head 3475 supports the other side of the position to be processed on the hub 4 at this time, and the deformation of the machining position is inhibited when the drill bit 345 drills a hole, the drill bit 345 is lowered to the position through the drill bit 345 on the hub 4 at this time, the mounting block 3441 drives the drill bit 345 to move up at this time, the tap 346 moves up and threads the hole at this time, until the output end of the tap 346 passes through the upper end of the hole, the movable plate 342 is lowered by the hydraulic cylinder 343 at this time, and the posture before processing is restored, the drill bit 345 and the tap 346 are not in contact with the hub 4 at this time, the bidirectional screw rod 3472 is reversed by the servo motor two 3471 at this time, and the hub 4 is supported, the center rod 232 drives the hub 4 to rotate through the clamping of the centering block one 233 and the centering block two 234 at this time, until the next position to be processed is rotated to the lower side of the drill bit 345, and the above working process is repeated to realize continuous drilling and tapping.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, not limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. A drilling and tapping integrated machine for machining aluminum alloy wheel hubs, characterized in that: It includes a machine tool base (1), a clamping unit (2) disposed on the machine tool base (1), and a machining unit (3) disposed on the clamping unit (2); The clamping unit (2) includes a support assembly (21) disposed on the machine tool base (1), a support plate (22) disposed on the support assembly (21), and a clamping assembly (23) disposed on the support plate (22). The processing unit (3) includes a support plate (31) set on the machine tool base (1), a fixing rod (32) set on the support plate (31), a support plate (33) set on the fixing rod (32), and a processing component (34) set on the support plate (33); the support component (21) includes a servo motor (211) set on the machine tool base (1), a lead screw (212) set on the machine tool base (1) for cooperating with the servo motor (211), a support slide rod (213) set on the machine tool base (1), and a connecting block (214) set on the lead screw (212) and the support slide rod (213); The lead screw (212) is connected to the connecting block (214) by a thread, and the support slide rod (213) is slidably connected to the connecting block (214); The support plate (22) is fixedly mounted on the connecting block (214); The clamping assembly (23) includes a lifting seat (231) disposed on the support plate (22), a center rod (232) disposed on the lifting seat (231), a centering block one (233) disposed at the bottom of the center rod (232), a centering block two (234) disposed on the center rod (232), a lead screw two (235) disposed on the center rod (232), and a connecting sleeve (236) disposed on the centering block two (234) for cooperating with the lead screw two (235); The processing component (34) includes a fixed plate (341) on the support plate (33), a movable plate (342) slidably disposed on the fixed plate (341), a hydraulic cylinder (343) disposed on the fixed plate (341), the output end of the hydraulic cylinder (343) being fixedly connected to the movable plate (342), a connector (344) disposed on the hydraulic cylinder (343), a drill bit (345) and a tap (346) disposed on the connector (344), and a stabilizer (347) disposed on the fixed plate (341). The hub (4) is positioned and clamped by the clamping assembly (23) in conjunction with the support plate (22) and the support assembly (21), causing the hub (4) to rotate. The machining assembly (34) forms a reverse support around the hole to be drilled on the hub (4), and with the rapid linear motion of the machining assembly (34), drilling and tapping operations are performed on the target position.

2. The drilling and tapping integrated machine for machining aluminum alloy wheel hubs as described in claim 1, characterized in that: Centering block 1 (233) is shaped like a frustum, narrower at the top and wider at the bottom; Centering block two (234) is movably mounted on the center rod (232). Centering block two (234) has a similar overall shape to centering block one (233), with the narrower end passing through the hub (4) first.

3. The drilling and tapping integrated machine for machining aluminum alloy wheel hubs as described in claim 2, characterized in that: The lifting platform (231) is equipped with a motor to drive the center rod (232) to rotate.

4. The drilling and tapping integrated machine for machining aluminum alloy wheel hubs as described in claim 3, characterized in that: The sliding path of the movable plate (342) on the fixed plate (341) is consistent with the driving direction of the hydraulic cylinder (343).

5. The drilling and tapping integrated machine for machining aluminum alloy wheel hubs as described in claim 4, characterized in that: The connector (344) includes a mounting block (3441) on the movable plate (342), a lead screw (3442) on the movable plate (342), a support slide rod (3443) on the movable plate (342), a threaded sleeve (3444) on the mounting block (3441) and connected to the lead screw (3442) by threads, an external gear ring (3445) on the threaded sleeve (3444), and a worm gear (3446) on the mounting block (3441) that mates with the threaded sleeve (3444).

6. The drilling and tapping integrated machine for machining aluminum alloy wheel hubs as described in claim 5, characterized in that: The mounting block (3441) is slidably connected to the support slide bar three (3443). The mounting block (3441) is provided with two sets on the lead screw three (3442). The two sets of mounting blocks (3441) are respectively provided with drill bit (345) and tap (346). The moving paths of drill bit (345) and tap (346) are kept on the same straight line.

7. The drilling and tapping integrated machine for machining aluminum alloy wheel hubs as described in claim 6, characterized in that: The stabilizer (347) includes a second servo motor (3471) mounted on a fixed plate (341), a bidirectional lead screw (3472) mounted on the drive end of the second servo motor (3471), a second support slide rod (3473) mounted on the fixed plate (341), and a connecting plate (3474) slidably mounted on the fixed plate (341) and the movable plate (342). The connecting plate (3474) is slidably connected to the second support slide rod (3473), and the connecting plate (3474) is threadedly connected to the bidirectional lead screw (3472). A set of two ends of the bidirectional lead screw (3472) are respectively provided, and a pressing head (3475) is provided on the connecting plate (3474).

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