Hub numerical control machining center equipment

Abstract

The invention discloses hub numerical control machining center equipment, and relates to the technical field of numerical control machining, the hub numerical control machining center equipment comprises a driving assembly, the driving assembly comprises an arc-shaped extrusion part, and a positioning assembly used for adjusting the position of a hub is arranged in the driving assembly. According to the hub numerical control machining center equipment, after a hub is positioned, a driving part in an arc-shaped extrusion part is started to extrude two arc-shaped blocks till the inner walls of the two arc-shaped blocks make tight contact with the outer surface of the hub, then six electromagnets corresponding to the hub are electrically connected with an external power source, and the hub is driven to rotate; the multiple iron sheets are driven to move towards the outer surfaces of the electromagnets corresponding to the iron sheets respectively, then the three chucks are driven to move towards the outer surface of the hub respectively, the fixing effect on the hub is strengthened again, after the hub is fixed, the hub can be driven to move forwards by a certain distance, and the next positioning ring is moved to the outer surface of the positioning plate. And the next hub is fixed.

Description

Technical Field

[0001] The present invention relates to the technical field of numerical control machining, and specifically to a numerical control machining center device for wheels. Background Technique

[0002] The numerical control machining center device for wheels is a numerically controlled machine tool specifically used for machining automobile wheels. It integrates computer numerical control technology, machining technology, and automation technology, and can efficiently and accurately complete various machining processes of wheels. It can precisely control the movement of the machine tool to ensure machining accuracy and surface quality. At the same time, it has a high degree of automation and can perform continuous machining to improve production efficiency.

[0003] Currently, during the machining process of wheels, drilling is a commonly used machining method. During the drilling process of wheels, it is mainly processed by an automatic control system. Drilling provides a channel for installing bolts on the wheels, enabling the wheels to be accurately installed on the vehicle. In the process of drilling and machining wheels by most existing numerical control machining center devices for wheels, it is often necessary to manually place individual wheels in the corresponding drilling equipment for drilling respectively, and then take them out after drilling. Then, another wheel to be drilled is placed on the drilling equipment, and during the process of separately drilling multiple wheels in sequence, it takes a long time and the process is complex, affecting the overall machining efficiency of the wheels.

[0004] Therefore, we propose a numerical control machining center device for wheels to solve the problems mentioned above. Summary of the Invention

[0005] The purpose of the present invention is to provide a numerical control machining center device for wheels to solve the problem that most wheels are drilled separately one by one during the drilling process in the above-mentioned background technique, which reduces the working efficiency.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A numerical control machining center device for wheels, including a driving assembly. The driving assembly includes an arc-shaped extrusion member. A positioning assembly for adjusting the position of the wheel is arranged inside the driving assembly. A drilling assembly for opening holes in the wheel is arranged on the top of the driving assembly. A plurality of fixing assemblies for fixing the wheel are arranged on the outer surface of the driving assembly. Each of the plurality of fixing assemblies includes a positioning ring and three telescopic tubes. Arc-shaped blocks for squeezing and clamping the wheel are movably arranged at both ends of the positioning ring. I-shaped threaded rods are movably embedded inside the three telescopic tubes. Chucks for squeezing and positioning the wheel are movably sleeved on the outer surfaces of the three I-shaped threaded rods. The three chucks move towards the center position of the wheel respectively to squeeze and fix the wheel.

[0007] Preferably, each of the plurality of fixing components further includes two limiting tubes. Compression frames are fixedly installed on the opposite outer surfaces of the positioning ring near the two side edges. Positioning sleeves are provided on the inner walls of the four compression frames. Torsion springs are provided inside the four positioning sleeves. Two springs are provided on the inner walls of each of the three telescopic tubes. Fixing blocks are coupled to the outer surfaces of the three telescopic tubes near one end. Electromagnets are provided on the outer surfaces of the three fixing blocks near the two side edges. Moving plates are fixedly installed at the other ends of the three telescopic tubes. Iron sheets are provided on the outer surfaces of the three moving plates near the two side edges.

[0008] Preferably, the two ends of the two limiting tubes respectively penetrate through the opposite outer parts of the positioning ring movably. The outer surfaces of the two limiting tubes are fixedly connected to the inner walls of the two arc-shaped blocks respectively. The four compression frames are grouped in pairs of two that are opposite to each other. The two ends of the two limiting tubes respectively penetrate through the outer parts of each pair of compression frames movably. The four positioning sleeves are grouped in pairs of two that are opposite to each other. The two ends of the two limiting tubes respectively penetrate through the outer parts of each pair of positioning sleeves movably. The four torsion springs are grouped in pairs of two that are opposite to each other. The outer surfaces of the two limiting tubes are fixedly connected to one end of each pair of torsion springs respectively.

[0009] Preferably, one end of each of the two telescopic tubes is fixedly connected to the outer surface of one of the two arc-shaped blocks respectively, and one end of the other telescopic tube is fixedly connected to the outer surface of the positioning ring. One end of each of the three I-shaped threaded rods penetrates through the outer parts of the three telescopic tubes movably. One end of each of the two I-shaped threaded rods penetrates through the inside of the two arc-shaped blocks respectively, and one end of the other I-shaped threaded rod penetrates through the inside of the positioning ring. The outer surfaces of the two I-shaped threaded rods are respectively threadedly connected to the inner walls of the two arc-shaped blocks, and the outer surface of the other I-shaped threaded rod is threadedly connected to the inner wall of the positioning ring.

[0010] Preferably, the six springs are grouped in pairs of two that are adjacent to each other. One end of each pair of springs is fixedly connected to one side inner wall of each of the three telescopic tubes respectively, and the other end of each pair of springs is fixedly connected to the other side inner wall of each of the three telescopic tubes respectively. Two of the chucks are respectively arranged inside the two arc-shaped blocks, and the other chuck is arranged inside the positioning ring. The outer surfaces of the two fixing blocks are respectively fixed to the outer surfaces of the two arc-shaped blocks, and the outer surface of the other fixing block is fixed to the outer surface of the positioning ring.

[0011] Preferably, the driving component further includes a workbench bottom plate. A first driving motor is fixedly installed on the outer surface of the workbench bottom plate near one side edge through screws. The output end of the first driving motor is fixedly connected to a first driving rod. The two ends of the first driving rod respectively penetrate through the opposite outer parts of the workbench bottom plate movably. The inside of each of the plurality of positioning rings is coupled to the outer surface of the first driving rod.

[0012] Preferably, a second driving motor is fixed to the outer surface of the workbench bottom plate near the other edge through screws. The output end of the second driving motor is fixedly installed with a second driving rod. Both ends of the second driving rod respectively pass through the opposite outer parts of the workbench bottom plate movably. The inner walls of a plurality of positioning rings are all coupled to the outer surface of the second driving rod. An intelligent control console is arranged on the inner wall of the workbench bottom plate near the other edge. The arc-shaped pressing member is arranged inside the workbench bottom plate. A rectangular sliding groove is formed on the outer surface of the workbench bottom plate.

[0013] Preferably, the positioning assembly includes a base. The bottom of the base is fixedly connected to the inner bottom surface of the workbench bottom plate. A positioning plate is arranged on the top of the base. A plurality of vacuum suction cups are arranged near the outer edge inside the positioning plate. A plurality of balls are arranged at the bottom of the positioning plate. The outer surfaces of a plurality of balls are all slid on the top of the base. A support column is fixedly installed near the center at the bottom of the positioning plate. The bottom end of the support column movably passes through the inside of the base to the inner wall.

[0014] Preferably, a toothed ring is fixedly sleeved on the outer surface of the support column near the bottom end. A stepping motor is fixedly installed on the inner top surface of the base through screws. The output end of the stepping motor is fixed with a transmission shaft. The bottom end of the transmission shaft is movably embedded in the inner wall of the base. A gear is fixedly sleeved on the outer surface of the transmission shaft. The outer surface of the gear is meshed with the outer surface of the toothed ring. A laser line scanning sensor is arranged on the top of the positioning plate. The laser line scanning sensor is fixedly connected to the outer surface of the workbench bottom plate through an auxiliary frame. A cylinder is arranged on the top of the workbench bottom plate. The top end of the cylinder is fixedly connected to the bottom of the base.

[0015] Preferably, the drilling assembly includes a mounting frame. The outer surface of the mounting frame is slidably connected to the inner wall of the rectangular sliding groove. A multi-stage electric telescopic rod is arranged on the inner bottom surface of the rectangular sliding groove. The top end of the multi-stage electric telescopic rod is fixedly connected to the bottom of the mounting frame. A plurality of drilling machine bodies are arranged on the inner top surface of the mounting frame. Drill bit bodies are arranged at the output ends of a plurality of drilling machine bodies.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. After the hub positioning is completed, start the driving component in the arc-shaped extrusion part to extrude the two arc-shaped blocks until the inner walls of the two arc-shaped blocks are in close contact with the outer surface of the hub. Then, electrically connect the six electromagnets corresponding to the hub to an external power supply, drive the multiple iron sheets to move towards the outer surfaces of the corresponding electromagnets respectively, and then drive the three chucks to move towards the outer surface of the hub respectively, further strengthening the fixing effect on the hub. After the hub is fixed, it can be driven to move forward a certain distance to move the next positioning ring to the outer surface of the positioning plate for fixing the next hub until all the positioning rings clamping the hubs are synchronously moved to the bottom of the corresponding drilling machine body, realizing the automatic clamping, fixing and moving of the hubs, and solving the problem in the prior art that most hubs are drilled separately one by one during drilling processing, which reduces the working efficiency.

[0017] 2. When drilling processing is required for the hub, first fix the hub through multiple vacuum suction cups, start the stepping motor to drive the hub to rotate, and at the same time start the laser line scanning sensor. When the hub rotates to the required position, the next processing operation can be carried out. Through the action of the positioning component, the hub can be rotated to a specific position in advance before drilling, facilitating the subsequent drilling operation.

[0018] 3. When multiple hubs are respectively moved to the bottoms of multiple drilling machine bodies, start the multiple drilling machine bodies to carry out drilling processing on the multiple hubs. After drilling is completed, reverse-start the first driving motor again to drive the multiple positioning rings to move towards the outer surface of the positioning plate, so that the four coil springs respectively drive the two arc-shaped blocks to rotate towards the outside of the positioning ring under the action of their own elastic forces, ending the clamping and fixing of the hubs, and the staff can take out the hubs, realizing the automatic opening of the clamping component and facilitating the staff to take out the hubs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the front three-dimensional view of a hub numerical control machining center device of the present invention; Figure 2 is the three-dimensional view of the workbench bottom plate part of a hub numerical control machining center device of the present invention; Figure 3 is the unfolded three-dimensional view of the structure of the positioning component part of a hub numerical control machining center device of the present invention; Figure 4 is the unfolded sectional three-dimensional view of the structure of the positioning component part of a hub numerical control machining center device of the present invention; Figure 5 is the three-dimensional view of the fixing component part of a hub numerical control machining center device of the present invention; Figure 6 is the three-dimensional view of the limiting tube part of a hub numerical control machining center device of the present invention Figure 7 Partial sectional perspective view of the arc block of a hub CNC machining center device according to the present invention; Figure 8 Partial sectional perspective view of the telescopic tube of a hub CNC machining center device according to the present invention; Figure 9 Partial sectional perspective view of the workbench bottom plate of a hub CNC machining center device according to the present invention.

[0020] In the figure: 1. Driving assembly; 101. Workbench bottom plate; 102. First driving motor; 103. First driving rod; 104. Second driving motor; 105. Second driving rod; 106. Intelligent control console; 107. Arc extrusion part; 108. Rectangular sliding groove; 2. Laser line scanning sensor; 3. Positioning assembly; 301. Base; 302. Positioning plate; 303. Vacuum suction cup; 304. Ball; 305. Support column; 306. Tooth ring; 307. Stepping motor; 308. Transmission shaft; 309. Gear; 310. Cylinder; 4. Fixing assembly; 401. Positioning ring; 402. Limiting tube; 403. Arc block; 404. Compression-resistant frame; 405. Positioning sleeve; 406. Torsion spring; 407. Telescopic tube; 408. I-shaped threaded rod; 409. Spring; 410. Chuck; 411. Fixed block; 412. Electromagnet; 413. Movable plate; 414. Iron sheet; 5. Drilling assembly; 501. Mounting frame; 502. Multi-stage electric telescopic rod; 503. Drill body; 504. Drill bit body. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1-8, the present invention provides a technical solution: a numerical control machining center device for a wheel hub. The positioning assembly 3 includes a base 301. The bottom of the base 301 is fixedly connected to the inner bottom surface of the workbench bottom plate 101. A positioning plate 302 is arranged on the top of the base 301. A plurality of vacuum suction cups 303 are arranged near the outer edge inside the positioning plate 302. A plurality of balls 304 are arranged at the bottom of the positioning plate 302. The outer surfaces of the plurality of balls 304 are all slidably connected to the top of the base 301. A support column 305 is fixedly installed near the center at the bottom of the positioning plate 302. The bottom end of the support column 305 movably penetrates through the inside of the base 301 to the inner wall. A toothed ring 306 is fixedly sleeved on the outer surface of the support column 305 near the bottom end. A stepping motor 307 is fixedly installed on the inner top surface of the base 301 by screws. The output end of the stepping motor 307 is fixed with a transmission shaft 308. The bottom end of the transmission shaft 308 is movably embedded in the inner wall of the base 301. A gear 309 is fixedly sleeved on the outer surface of the transmission shaft 308. The outer surface of the gear 309 is meshed with the outer surface of the toothed ring 306. A laser line scanning sensor 2 is arranged on the top of the positioning plate 302. The laser line scanning sensor 2 is fixedly connected to the outer surface of the workbench bottom plate 101 through an auxiliary frame. A cylinder 310 is arranged on the top of the workbench bottom plate 101. The top end of the cylinder 310 is fixedly connected to the bottom of the base 301.

[0023] In this embodiment, when drilling the wheel hub is required, first place the wheel hub on the top of the positioning plate 302, so that the outer surface of the wheel hub is in contact with the inner wall of the positioning ring 401. Among them, the outer diameter of the wheel hub matches the inner diameter of the positioning ring 401 as shown in Figure 5 and the top of the positioning plate 302 is in line with Figure 5The top of the inner ring within the positioning ring 401 shown is flush. Then, multiple vacuum suction cups 303 can be activated through the intelligent console 106 to adsorb and position the wheel hub. Among them, the suction part of the vacuum suction cup 303 is in close contact with the surface of the wheel hub to form a sealed space. The air in the sealed space is pumped away by the internal vacuum pump, so that the internal air pressure and the resultant force generated by the pressure difference act on the wheel hub, making it firmly adsorbed on the vacuum suction cup 303. Then, the stepping motor 307 is activated again through the intelligent console 106 to drive the transmission shaft 308 to rotate, and then drive the gear 309 to rotate, thereby driving the toothed ring 306 to rotate, and further causing the support column 305 to rotate along the inner wall of the base 301, and finally driving the positioning plate 302 to rotate to drive the wheel hub to rotate. At the same time, the laser line scanning sensor 2 is activated, and the surface of the wheel hub is scanned by the laser line scanning sensor 2 until the wheel hub rotates to a pre-set position. Among them, the working principle of the laser line scanning sensor 2 for detecting whether the wheel hub rotates to the specified position is mainly based on laser ranging and position comparison technology. By accurately measuring the position or angle of the wheel hub features to determine whether it reaches the preset position, a laser beam is emitted by the laser emitter, the laser signal reflected from the surface of the object is received, the propagation time, angle and phase difference of the laser beam are calculated, and converted into the position of the object, and then it is measured whether the wheel hub rotates to the required position. When the wheel hub rotates to the required position, the next processing operation can be carried out. Through the action of the positioning component 3, the wheel hub can be rotated to a specific position in advance before drilling, which is convenient for subsequent drilling operations.

[0024] Such as Figures 1-2 And Figures 5-9As shown in the figure, a numerical control machining center device for a wheel hub includes a driving component 1. The driving component 1 includes an arc-shaped extrusion part 107. Inside the driving component 1, there is a positioning component 3 for adjusting the position of the wheel hub. On the top of the driving component 1, there is a drilling component 5 for opening holes in the wheel hub. On the outer surface of the driving component 1, there are multiple fixing components 4 for fixing the wheel hub. Each of the multiple fixing components 4 includes a positioning ring 401 and three telescopic tubes 407. At both ends of the positioning ring 401, there are arc-shaped blocks 403 that are movably arranged for squeezing and clamping the wheel hub. Inside each of the three telescopic tubes 407, there is an I-shaped threaded rod 408 movably embedded. On the outer surface of each of the three I-shaped threaded rods 408, there is a chuck 410 movably sleeved for squeezing and positioning the wheel hub. The three chucks 410 move towards the center position of the wheel hub respectively to squeeze and fix the wheel hub. Each of the multiple fixing components 4 also includes two limiting tubes 402. On the opposite outer surfaces of the positioning ring 401 near both side edges, there are compression-resistant frames 404 fixedly installed. On the inner walls of the four compression-resistant frames 404, there are positioning sleeves 405. Inside each of the four positioning sleeves 405, there is a coil spring 406. On the inner walls of each of the three telescopic tubes 407, there are two springs 409. Near one end of the outer surface of each of the three telescopic tubes 407, there is a fixed block 411 coupled. On the outer surface of each of the three fixed blocks 411 near both side edges, there is an electromagnet 412. At the other end of each of the three telescopic tubes 407, there is a movable plate 413 fixedly installed. On the outer surface of each of the three movable plates 413 near both side edges, there is an iron sheet 414. The two ends of the two limiting tubes 402 respectively movably penetrate to the opposite outsides of the positioning ring 401. The outer surfaces of the two limiting tubes 402 are respectively fixedly connected to the inner walls of the two arc-shaped blocks 403. The four compression-resistant frames 404, with every two opposite ones as a group, the two ends of the two limiting tubes 402 respectively movably penetrate to the outsides of each group of compression-resistant frames 404. The four positioning sleeves 405, with every two opposite ones as a group, the two ends of the two limiting tubes 402 respectively movably penetrate to the outsides of each group of positioning sleeves 405. The four coil springs 406, with every two opposite ones as a group, the outer surfaces of the two limiting tubes 402 are respectively fixedly connected to one end of each group of coil springs 406. One end of each of two of the three telescopic tubes 407 is respectively fixedly connected to the outer surface of each of the two arc-shaped blocks 403, and one end of the other telescopic tube 407 is fixedly connected to the outer surface of the positioning ring 401. One end of each of the three I-shaped threaded rods 408 respectively movably penetrates to the outsides of the three telescopic tubes 407. One end of each of two of the three I-shaped threaded rods 408 respectively movably penetrates to the inside of each of the two arc-shaped blocks 403, and one end of the other I-shaped threaded rod 408 penetrates to the inside of the positioning ring 401. The outer surfaces of each of the two I-shaped threaded rods 408 are respectively threadedly connected to the inner walls of the two arc-shaped blocks 403, and the outer surface of the other I-shaped threaded rod 408 is threadedly connected to the inner wall of the positioning ring 401. The six springs 409, with every two adjacent ones as a group, one end of each group of springs 409 is respectively fixedly connected to one side inner wall of each of the three telescopic tubes 407,The other ends of each group of springs 409 are respectively fixedly connected to the inner walls on the other sides of the three telescopic tubes 407. Two of the chucks 410 are respectively arranged inside the two arc-shaped blocks 403, and the other chuck 410 is arranged inside the positioning ring 401. The outer surfaces of two of the fixing blocks 411 are respectively fixed to the outer surfaces of the two arc-shaped blocks 403, and the outer surface of the other fixing block 411 is fixed to the outer surface of the positioning ring 401.,

[0025] In this embodiment, after the hub is positioned, the driving component in the arc-shaped extruding member 107 as shown in Figure 2 can be started through the intelligent console 106, driving the arc-shaped extruding member 107 to move towards the outer surface of the positioning ring 401 in contact with the outer surface of the hub until the arc surface of the arc-shaped extruding member 107 moves to a position in contact with the outer surfaces of the two arc-shaped blocks 403. The two arc surfaces of the arc-shaped extruding member 107 respectively extrude the two arc-shaped blocks 403, causing them to rotate along the inner wall of the positioning ring 401 towards the outer surface of the hub under the drive of the two limiting tubes 402 until the inner walls of the two arc-shaped blocks 403 are in tight contact with the outer surface of the hub. During the rotation of the arc-shaped block 403, the corresponding coil spring 406 is pulled and tightened. Among them, as Figure 6 shown, a plurality of rectangular grooves are provided on the inner wall of the arc-shaped block 403, the purpose of which is to further increase the friction between the arc-shaped block 403 and the outer surface of the hub, thereby further strengthening the fixing effect on the hub. Then, the six electromagnets 412 corresponding to the hub are respectively electrically connected to an external power supply through the intelligent console 106 to generate a magnetic field, thereby respectively generating an adsorption force on the iron sheets 414 opposite to them, driving the plurality of iron sheets 414 to move towards the outer surfaces of the corresponding electromagnets 412 respectively, and further driving the three movable plates 413 to move towards the outer surface of the fixing block 411. The movement of the three movable plates 413 causes the three telescopic tubes 407 to be squeezed and shortened, thereby driving the I-shaped threaded rods 408 inside them to move forward, and further causing the three I-shaped threaded rods 408 to move forward and rotate respectively under the influence of the thread circles on the inner walls of the positioning ring 401 and the arc-shaped block 403, and further driving the three chucks 410 to move towards the outer surface of the hub. Among them, as Figure 5 shown, arc-shaped rings are provided on the inner walls of the positioning ring 401 and the arc-shaped block 403 to limit the three chucks 410, so that the I-shaped threaded rods 408 will not drive the chucks 410 to rotate during the rotation process. Through the movement of the three chucks 410, the fixing effect on the hub is strengthened again. After the hub is fixed, the plurality of vacuum suction cups 303 can be closed, and then the first driving motor 102 is started to drive the first driving rod 103 to rotate, thereby causing the positioning ring 401 to move forward along the outer surface of the first driving rod 103. Among them, the screw part in the first driving rod 103 is threadedly connected to the inner wall of the positioning ring 401. In addition, as Figure 2As shown, both the first drive rod 103 and the second drive rod 105 are composed of a lead screw part and a round tube part, and their purpose is to control the movement of the positioning ring 401. When the positioning ring 401 drives the hub to move to a distance from the base 301 equal to the distance between two adjacent drilling machine bodies 503, the first drive motor 102 can be turned off. At the same time, the driving device of the arc-shaped extrusion part 107 is started in the reverse direction again to drive the arc-shaped extrusion part 107 to reset. Then, the second drive motor 104 can be started to drive the next positioning ring 401 to move forward. At the same time, the air cylinder 310 is started to shorten it, driving the positioning plate 302 to move downward by a certain distance. When the positioning ring 401 moves forward to a position where the inner wall of the inner ring thereof is concentric with the positioning plate 302, the air cylinder 310 can be started again to elongate it, driving the positioning plate 302 to reset, so that the top of the positioning plate 302 and the inner ring in the positioning ring 401 are on the same plane, and the inner wall of the ring contacts the outer wall of the positioning plate 302. Then, the next hub to be drilled can be placed on the top of the positioning plate 302 for rotary positioning and clamping. Then, the first drive motor 102 drives the clamped hub to move forward by a certain distance, so that the distance from the positioning plate 302 is the same as the distance between two adjacent drilling machine bodies 503, and at this time, the distance between two adjacent positioning rings 401 that have clamped the hub is the same as the distance between two adjacent drilling machine bodies 503. Then, the above steps can be repeated to move and clamp the next hub. When the positioning ring 401 of the hub clamped at the front end moves to the bottom of the outermost drilling machine body 503, at this time, the remaining multiple positioning rings 401 that have clamped the hub just move synchronously to the bottom of their corresponding drilling machine bodies 503, and the hub can be drilled. Through the action of the fixing component 4 and the positioning component 3, automatic clamping, fixing and movement of the hub are realized, and multiple hubs can move and be drilled simultaneously, thereby further improving the working efficiency of hub drilling and solving the problem in the prior art that most hubs are drilled separately one by one, reducing the working efficiency.

[0026] As Figures 1-9As shown, the driving component 1 further includes a workbench bottom plate 101. A first driving motor 102 is fixedly installed on the outer surface of the workbench bottom plate 101 near one side edge through screws. The output end of the first driving motor 102 is fixedly connected to a first driving rod 103. Both ends of the first driving rod 103 respectively penetrate through the opposite outer parts of the workbench bottom plate 101. The inner parts of multiple positioning rings 401 are all coupled to the outer surface of the first driving rod 103. A second driving motor 104 is fixed on the outer surface of the workbench bottom plate 101 near the other side edge through screws. The output end of the second driving motor 104 is fixedly installed with a second driving rod 105. Both ends of the second driving rod 105 respectively penetrate through the opposite outer parts of the workbench bottom plate 101. The inner walls of multiple positioning rings 401 are all coupled to the outer surface of the second driving rod 105. An intelligent control console 106 is arranged on the inner wall of the workbench bottom plate 101 near the other side edge. An arc-shaped pressing part 107 is arranged inside the workbench bottom plate 101. A rectangular sliding groove 108 is formed on the outer surface of the workbench bottom plate 101. The drilling component 5 includes a mounting frame 501. The outer surface of the mounting frame 501 is slidably connected to the inner wall of the rectangular sliding groove 108. A multi-stage electric telescopic rod 502 is arranged on the inner bottom surface of the rectangular sliding groove 108. The top end of the multi-stage electric telescopic rod 502 is fixedly connected to the bottom of the mounting frame 501. Multiple drill rig bodies 503 are arranged on the inner top surface of the mounting frame 501. Drill bit bodies 504 are arranged at the output ends of multiple drill rig bodies 503.

[0027] In this embodiment, when multiple hubs are respectively moved to the bottoms of multiple drilling rig bodies 503, the multiple drilling rig bodies 503 can be started through the intelligent console 106. Among them, the working principle of the drilling rig body 503 is a mature existing technology and will not be introduced in detail here. Then, start the multi-stage electric telescopic rod 502 to shorten it, drive the mounting frame 501 to move downward along the inner wall of the rectangular chute 108, and then drive the multiple drill bit bodies 504 to move downward to drill the hubs. Among them, during the process of the drill bit body 504 drilling the hubs, it is mainly controlled by the automatic control system in the intelligent console 106. When the hub drilling is completed, reverse-start the first drive motor 102 again to drive the multiple positioning rings 401 to move towards the outer surface of the positioning plate 302 respectively. When the positioning ring 401 at the forefront moves to the outer surface of the positioning plate 302, at this time, the outer surfaces of the two arc-shaped blocks 403 are respectively separated from the two contact surfaces of the arc-shaped pressing member 107, so that the four coil springs 406 drive the two arc-shaped blocks 403 to rotate outward of the positioning ring 401 respectively under the action of their own elastic forces, ending the clamping and fixing of the hub. The staff can then take out the hub. Then, start the first drive motor 102 and the second drive motor 104 again to continue driving the multiple positioning rings 401 to move forward until the next positioning ring 401 moves to the top of the positioning plate 302, and the next hub can be taken out, realizing the automatic opening of the clamping component and facilitating the staff to take out the hub.

[0028] Usage method and working principle of this device: When drilling the hub, first place the hub on the top of the positioning plate 302 so that the outer surface of the hub is in contact with the inner wall of the positioning ring 401. Start the multiple vacuum suction cups 303 to firmly adsorb it on the vacuum suction cups 303. Then, start the stepping motor 307 again through the intelligent console 106 to drive the transmission shaft 308 to rotate, and then drive the gear 309 to rotate, thereby driving the toothed ring 306 to rotate, and then making the support column 305 rotate along the inner wall of the base 301, and finally driving the positioning plate 302 to rotate to drive the hub to rotate. At the same time, start the laser line scanning sensor 2 to scan the surface of the hub through the laser line scanning sensor 2 until the hub rotates to the pre-set position, and then the intelligent console 106 can be used to start as Figure 2The drive component in the arc-shaped extrusion part 107 shown drives the arc-shaped extrusion part 107 to move towards the outer surface of the positioning ring 401 in contact with the outer surface of the hub until the arc surface of the arc-shaped extrusion part 107 moves to a position in contact with the outer surfaces of the two arc-shaped blocks 403. The two arc surfaces of the arc-shaped extrusion part 107 respectively extrude the two arc-shaped blocks 403, causing them to rotate along the inner wall of the positioning ring 401 towards the outer surface of the hub under the drive of the two limiting tubes 402 until the inner walls of the two arc-shaped blocks 403 are in tight contact with the outer surface of the hub. During the rotation of the arc-shaped block 403, the corresponding coil spring 406 is pulled and tightened. Then, the intelligent control console 106 respectively electrically connects the six electromagnets 412 corresponding to the hub to an external power source to generate a magnetic field, thereby generating an adsorption force on the corresponding iron sheets 414, driving the multiple iron sheets 414 to move towards the outer surfaces of the corresponding electromagnets 412 respectively, and further driving the three movable plates 413 to move towards the outer surface of the fixed block 411. The movement of the three movable plates 413 causes the three telescopic tubes 407 to be squeezed and shortened, thereby driving the I-shaped threaded rods 408 inside them to move forward, and further causing the three I-shaped threaded rods 408 to move forward and rotate respectively under the influence of the threaded circles on the inner walls of the positioning ring 401 and the arc-shaped block 403, and further driving the three chucks 410 to move towards the outer surface of the hub, as Figure 5As shown, the inner walls of the positioning ring 401 and the arc-shaped block 403 both have arc-shaped rings to limit the three chucks 410. Through the movement of the three chucks 410, the fixing effect on the hub is strengthened again. After the hub is fixed, multiple vacuum suction cups 303 can be closed, and then the first driving motor 102 is started to drive the first driving rod 103 to rotate, so that the positioning ring 401 moves forward along the outer surface of the first driving rod 103. When the positioning ring 401 drives the hub to move to a distance from the base 301 equal to the distance between two adjacent drilling rig bodies 503, the first driving motor 102 can be closed. At the same time, the driving device of the arc-shaped extrusion member 107 is started in the reverse direction again to drive the arc-shaped extrusion member 107 to reset. Then the second driving motor 104 can be started to drive the next positioning ring 401 to move forward.Start the cylinder 310 at the same time to make it shorten, driving the positioning plate 302 to move downward by a certain distance. When the positioning ring 401 moves forward to a position where the inner wall of the inner ring thereof is concentric with the positioning plate 302, the cylinder 310 can be started again to make it elongate, driving the positioning plate 302 to reset, so that the top of the positioning plate 302 and the inner ring in the positioning ring 401 are on the same plane, and the inner wall of the ring contacts the outer wall of the positioning plate 302. Then, the next hub to be drilled can be placed on the top of the positioning plate 302 for rotary positioning and clamping. Then, drive the clamped hub to move forward by a certain distance through the first drive motor 102, so that the distance from the positioning plate 302 is the same as the distance between two adjacent drill body 503. At this time, the distance between two adjacent positioning rings 401 that have clamped the hubs is the same as the distance between two adjacent drill body 503. Then, the above steps can be repeated to move and clamp the next hub. When the positioning ring 401 of the hub clamped at the frontmost end moves to the bottom of the outermost drill body 503, at this time, the positioning rings 401 of the remaining multiple clamped hubs just synchronously move to the bottom of their corresponding drill body 503, and the hub can be drilled. When multiple hubs respectively move to the bottom of multiple drill body 503, the multiple drill body 503 can be started through the intelligent control console 106. Then, start the multi-stage electric telescopic rod 502 to make it shorten, driving the mounting frame 501 to move downward along the inner wall of the rectangular chute 108, and further driving the multiple drill bit bodies 504 to move downward to drill the hub. When the hub drilling is completed, reverse the first drive motor 102 again to drive the multiple positioning rings 401 to move towards the outer surface of the positioning plate 302 respectively. When the positioning ring 401 at the frontmost end moves to the outer surface of the positioning plate 302, at this time, the outer surfaces of the two arc-shaped blocks 403 are respectively separated from the two contact surfaces of the arc-shaped pressing member 107, so that the four coil springs 406 respectively drive the two arc-shaped blocks 403 to rotate towards the outside of the positioning ring 401 under the action of their own elastic force, ending the clamping and fixing of the hub. The staff can take out the hub. Then, start the first drive motor 102 and the second drive motor 104 again to continue driving the multiple positioning rings 401 to move forward until the next positioning ring 401 moves to the top of the positioning plate 302, and the next hub can be taken out.,

[0029] The wiring diagrams of the first driving motor 102, the second driving motor 104, the intelligent control console 106, the laser line scanning sensor 2, the vacuum suction cup 303, the stepping motor 307, the electromagnet 412 and the drill rig body 503 in the present invention belong to the well-known common sense in the art. Their working principles are already known technologies, and their models are selected according to actual use. Therefore, the control methods and wiring arrangements of the first driving motor 102, the second driving motor 104, the intelligent control console 106, the laser line scanning sensor 2, the vacuum suction cup 303, the stepping motor 307, the electromagnet 412 and the drill rig body 503 will not be explained in detail.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A numerical control machining center device for a wheel hub, comprising a driving assembly (1), wherein the driving assembly (1) includes an arc-shaped extrusion member (107), a positioning assembly (3) for adjusting the position of the wheel hub is arranged inside the driving assembly (1), and a drilling assembly (5) for opening holes in the wheel hub is arranged at the top of the driving assembly (1), and is characterized in that: A plurality of fixing components (4) for fixing the hub are arranged on the outer surface of the driving component (1). Each of the plurality of fixing components (4) includes a positioning ring (401) and three telescopic tubes (407). Arc-shaped blocks (403) for squeezing and clamping the hub are movably arranged at both ends of the positioning ring (401). I-shaped threaded rods (408) are movably embedded in the interiors of the three telescopic tubes (407). Chucks (410) for squeezing and positioning the hub are movably sleeved on the outer surfaces of the three I-shaped threaded rods (408). The three chucks (410) move towards the center position of the hub respectively to squeeze and fix the hub. The driving component (1) further includes a workbench bottom plate (101). A first driving motor (102) is fixedly installed on the outer surface of the workbench bottom plate (101) near one side edge through screws. The output end of the first driving motor (102) is fixedly connected with a first driving rod (103). The positioning component (3) includes a base (301). The bottom of the base (301) is fixedly connected with the inner bottom surface of the workbench bottom plate (101). A positioning plate (302) is arranged on the top of the base (301). A plurality of vacuum suction cups (303) are arranged near the outer edge of the interior of the positioning plate (302). A stepping motor (307) is fixedly installed on the inner top surface of the base (301) through screws. The output end of the stepping motor (307) is fixed with a transmission shaft (308). The bottom end of the transmission shaft (308) is movably embedded in the inner wall of the base (301).

2. The hub numerical control machining center equipment according to claim 1, characterized in that: Each of the plurality of fixing components (4) further includes two limiting tubes (402). Compression-resistant frames (404) are fixedly installed near the two side edges of the opposite outer surfaces of the positioning ring (401). Positioning sleeves (405) are arranged on the inner walls of the four compression-resistant frames (404). Torsion springs (406) are arranged in the interiors of the four positioning sleeves (405). Two springs (409) are arranged on the inner walls of the three telescopic tubes (407). Fixing blocks (411) are coupled and connected near one end of the outer surfaces of the three telescopic tubes (407). Electromagnets (412) are arranged near the two side edges of the outer surfaces of the three fixing blocks (411). The other ends of the three telescopic tubes (407) are fixedly installed with movable plates (413). Iron sheets (414) are arranged near the two side edges of the outer surfaces of the three movable plates (413).

3. The hub numerically controlled machining center equipment according to claim 2, characterized in that: Both ends of the two limiting tubes (402) respectively penetrate through the opposite outer parts of the positioning ring (401) movably. The outer surfaces of the two limiting tubes (402) are respectively fixedly connected to the inner walls of the two arc-shaped blocks (403). There are four pressure-resistant frames (404), with every two opposite ones as a group. Both ends of the two limiting tubes (402) respectively penetrate through the outside of each group of pressure-resistant frames (404) movably. There are four positioning sleeves (405), with every two opposite ones as a group. Both ends of the two limiting tubes (402) respectively penetrate through the outside of each group of positioning sleeves (405) movably. There are four coil springs (406), with every two opposite ones as a group. The outer surfaces of the two limiting tubes (402) are respectively fixedly connected to one end of each group of coil springs (406).

4. The hub numerically controlled machining center equipment according to claim 3, characterized in that: One end of each of the two telescopic tubes (407) is respectively fixedly connected to the outer surface of the two arc-shaped blocks (403). One end of the other telescopic tube (407) is fixedly connected to the outer surface of the positioning ring (401). One end of each of the three I-shaped threaded rods (408) respectively penetrates through the outside of the three telescopic tubes (407) movably. One end of each of the two I-shaped threaded rods (408) respectively penetrates through the inside of the two arc-shaped blocks (403). One end of the other I-shaped threaded rod (408) penetrates through the inside of the positioning ring (401). The outer surfaces of the two I-shaped threaded rods (408) are respectively threadedly connected to the inner walls of the two arc-shaped blocks (403). The outer surface of the other I-shaped threaded rod (408) is threadedly connected to the inner wall of the positioning ring (401).

5. The hub numerical control machining center equipment according to claim 4, characterized in that: There are six springs (409), with every two adjacent ones as a group. One end of each group of springs (409) is respectively fixedly connected to the inner wall of one side of the three telescopic tubes (407). The other end of each group of springs (409) is respectively fixedly connected to the inner wall of the other side of the three telescopic tubes (407). Two of the chucks (410) are respectively arranged inside the two arc-shaped blocks (403). The other chuck (410) is arranged inside the positioning ring (401). The outer surfaces of the two fixing blocks (411) are respectively fixed to the outer surfaces of the two arc-shaped blocks (403). The outer surface of the other fixing block (411) is fixed to the outer surface of the positioning ring (401).

6. The hub numerical control machining center equipment according to claim 5, characterized in that: Both ends of the first driving rod (103) respectively penetrate through the opposite outer parts of the workbench bottom plate (101) movably. The inside of the multiple positioning rings (401) is coupled to the outer surface of the first driving rod (103).

7. The hub numerical control machining center equipment according to claim 6, characterized in that: A second driving motor (104) is fixed to the outer surface of the workbench bottom plate (101) near the other edge by screws. The output end of the second driving motor (104) is fixedly installed with a second driving rod (105). The two ends of the second driving rod (105) respectively penetrate through the opposite outer parts of the workbench bottom plate (101). The inner walls of a plurality of the positioning rings (401) are coupled to the outer surface of the second driving rod (105). An intelligent control console (106) is arranged on the inner wall of the workbench bottom plate (101) near the other edge. The arc-shaped pressing member (107) is arranged inside the workbench bottom plate (101). A rectangular sliding groove (108) is formed on the outer surface of the workbench bottom plate (101).

8. The hub numerical control machining center equipment according to claim 7, characterized in that: A plurality of balls (304) are arranged at the bottom of the positioning plate (302). The outer surfaces of the plurality of balls (304) are slid on the top of the base (301). A support column (305) is fixedly installed near the center of the bottom of the positioning plate (302). The bottom end of the support column (305) movably penetrates through the inside of the base (301) to the inner wall.

9. The hub CNC machining center equipment according to claim 8, characterized in that: A toothed ring (306) is fixedly sleeved on the outer surface of the support column (305) near the bottom end. A gear (309) is fixedly sleeved on the outer surface of the transmission shaft (308). The outer surface of the gear (309) is meshed with the outer surface of the toothed ring (306). A laser line scanning sensor (2) is arranged on the top of the positioning plate (302). The laser line scanning sensor (2) is fixedly connected to the outer surface of the workbench bottom plate (101) through an auxiliary frame. A cylinder (310) is arranged on the top of the workbench bottom plate (101). The top end of the cylinder (310) is fixedly connected to the bottom of the base (301).

10. The hub numerical control machining center equipment according to claim 9, characterized in that: The drilling assembly (5) includes a mounting frame (501). The outer surface of the mounting frame (501) is slidably connected to the inner wall of the rectangular sliding groove (108). A multi-stage electric telescopic rod (502) is arranged on the inner bottom surface of the rectangular sliding groove (108). The top end of the multi-stage electric telescopic rod (502) is fixedly connected to the bottom of the mounting frame (501). A plurality of drilling machine bodies (503) are arranged on the inner top surface of the mounting frame (501). Drill bit bodies (504) are arranged at the output ends of the plurality of drilling machine bodies (503).

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