A surface processing device for hub production

Abstract

The application discloses a surface processing device for hub production and belongs to the technical field of hub production, which comprises a base, a moving assembly fixedly connected to the base, a polishing assembly installed on the front of the moving assembly, a driving device fixedly connected to the base and a limiting device through connection in the base. In the application, when the hub is stably positioned by the compression roller and the two rotating rollers, the driving motor is started, the first winding wheel is rotated by the driving motor, the two second winding wheels are synchronously driven to rotate by the first belt transmission system, the two rotating rollers below are synchronously rotated by the rotation of the rotating shaft, and the hub placed thereon is driven to rotate at a stable uniform speed. The structure can realize the uniform rotation of the hub in the polishing process without the help of traditional clamps, and provides good rotation stability and operation convenience for high-quality arc surface processing.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of hub production, and particularly relates to a surface processing device for hub production. BACKGROUND

[0002] The hub is a key component for connecting the wheel and the frame, bearing the weight of the vehicle and transmitting power, and the structure and surface quality thereof have a direct impact on the performance and safety of the whole vehicle. In the production process of the motorcycle hub, an aluminum alloy material is usually adopted to form an initial profile through casting or forging, and then precise machining is performed to ensure the dimensional accuracy. In order to improve the surface smoothness, aesthetics and subsequent coating or electroplating effect of the hub, polishing treatment must be performed during the machining process. Polishing is used to remove burrs and surface unevenness, and polishing is used to further improve the surface roughness, so that the hub has good gloss and higher surface quality standards.

[0003] In the prior art, when polishing the arc surface of the hub, a traditional clamp is usually used to fix the workpiece. However, due to the arc structure of the hub, frequent adjustment or multiple clamping of the workpiece is required when polishing the entire circumference in the circumferential direction. This not only makes the operation process complicated, but also significantly prolongs the machining cycle and reduces the production efficiency. In addition, a large amount of metal dust and fine particles are generated during the polishing process. These dusts are easy to scatter and accumulate on the surface of the workbench, which not only affects the cleanliness of the machining environment, but also increases the workload of subsequent cleaning, and brings certain inconvenience to equipment maintenance and operation safety.

[0004] Based on this, the application designs a surface processing device for hub production to solve the above problems. SUMMARY

[0005] The purpose of the application is to solve the problem that in the prior art, when polishing the arc surface of the hub, a traditional clamp is usually used to fix the workpiece. However, due to the arc structure of the hub, frequent adjustment or multiple clamping of the workpiece is required when polishing the entire circumference in the circumferential direction. This not only makes the operation process complicated, but also significantly prolongs the machining cycle and reduces the production efficiency. A surface processing device for hub production is proposed.

[0006] In order to achieve the above purpose, the application adopts the following technical scheme:

[0007] A surface processing device for hub production, comprising a base, a moving assembly fixedly connected to the base, a polishing assembly installed on the front of the moving assembly, a driving device fixedly connected to the base, a limiting device penetratingly connected in the base, two cleaning devices fixedly connected outside the driving device, a receiving box placed in the base, and two funnels symmetrically installed in the base.

[0008] The driving device comprises a driving motor and two second winding wheels, the driving motor is fixedly connected with a support plate, and the support plate is fixedly connected in the base, the output end of the driving motor is fixedly connected with a first winding wheel, the first winding wheel and the two second winding wheels are provided with a same first belt, the second winding wheel is fixedly connected with a rotating shaft, the rotating shaft is provided with a rotating roller, and the rotating roller is provided with anti-skid lines outside;

[0009] The limiting device comprises a pressing plate, two slide rods are penetratingly arranged in the pressing plate, a same frame body is fixedly connected below the two slide rods, two limiting shafts are installed in the frame body, a pressing roller is provided on the limiting shaft, a pressing spring is fixedly connected to the upper surface of the frame body, and the pressing spring is fixedly connected below the pressing plate.

[0010] As a further description of the above technical solution:

[0011] The driving device further comprises four connecting plates, the connecting plates are fixedly connected to the upper surface of the base, bearings are penetratingly connected in the connecting plates, and the rotating shafts are fixedly connected in the adjacent two bearings.

[0012] As a further description of the above technical solution:

[0013] The limiting device further comprises a moving plate, a threaded rod is arranged in the moving plate, a handle is fixedly connected to the threaded rod, a nut is provided on the threaded rod, and the nut is penetratingly connected in the base.

[0014] As a further description of the above technical solution:

[0015] The pressing plate is fixedly connected to the back of the moving plate, and the moving plate and the threaded rod are rotationally connected.

[0016] As a further description of the above technical solution:

[0017] The slide rod and the pressing plate are slidingly connected, and the slide rod is partially sleeved with a limiting ring on the pressing plate.

[0018] As a further description of the above technical solution:

[0019] The pressing roller and the limiting shaft are rotationally connected, and the pressing roller is provided with anti-skid lines outside.

[0020] As a further description of the above technical solution:

[0021] The cleaning device comprises a third winding wheel, a fourth winding wheel and a supporting frame, the mounting rod is fixedly connected in the third winding wheel, the mounting rod is fixedly connected outside one of the second winding wheels, the third winding wheel and the fourth winding wheel are sleeved with the same second belt, the supporting frame is fixedly connected on one side of the moving assembly, the reciprocating screw rod is fixedly connected in the fourth winding wheel, the reciprocating screw rod is rotatably connected in the supporting frame, the threaded cap is sleeved on the reciprocating screw rod, the vertical plate is fixedly connected below the threaded cap, the rectangular slot is formed in the vertical plate, the long rod is connected through the rectangular slot, the sleeve plate is sleeved on the long rod, the sleeve plate is arranged in the rectangular slot, the movable plate is fixedly connected below the sleeve plate, and the cleaning brush is fixedly connected below the movable plate.

[0022] As a further description of the above technical solution:

[0023] The sleeve plate and the long rod are rotatably connected, and the cleaning brush is overlapped on the upper surface of the base.

[0024] As a further description of the above technical solution:

[0025] The cleaning device further comprises a sleeve shell, the sleeve shell is provided with an extrusion block, one side of the extrusion block is fixedly connected with a return spring, and the return spring is fixedly connected in the sleeve shell.

[0026] As a further description of the above technical solution:

[0027] One side of the extrusion block is provided with a hemisphere for facilitating extrusion.

[0028] As described above, due to the adoption of the above technical solution, the beneficial effects of the present application are:

[0029] 1、The invention, by placing the hub horizontally on two oppositely arranged rotating rollers, then the operator first rotates the moving plate to the inside of the hub, so that it is close to the inner edge positioning area of the hub, then manually rotates the handle, and assists to support the moving plate, with the rotation of the handle, the threaded rod connected with it rotates synchronously in the nut and moves axially, thereby driving the compression roller to the center of the hub, when the compression roller is pressed into the inner cavity of the hub, the pressing force is transmitted to the frame through the limiting shaft, thereby exerting axial thrust on the slide rod arranged in the frame, making the slide rod slide in the pressing plate, while compressing the compression spring, enhancing the vertical limiting stability of the hub, at this time, under the condition that the hub has been stably positioned by the compression roller and the two rotating rollers, the driving motor is started, the driving motor drives the first winding wheel to rotate, the first winding wheel drives two second winding wheels to rotate synchronously through the first belt transmission system, the second winding wheel is connected with the shaft, and the two rotating rollers below are driven to rotate at the same speed through the synchronous rotation of the shaft, thereby driving the hub placed thereon to rotate at a stable uniform speed, which can realize uniform rotation of the hub during polishing without the aid of traditional clamps, providing good rotation stability and operation convenience for high-quality curved surface machining.

[0030] 2、In the invention, while the hub rotates at a constant speed for curved surface polishing, the two second winding wheels drive the mounting rod to rotate synchronously through the linkage structure, the mounting rod is fixedly connected with the third winding wheel arranged at the end thereof, the third winding wheel drives the second belt to synchronously transmit during rotation, thereby driving the fourth winding wheel connected therewith to rotate, the fourth winding wheel is connected to the reciprocating screw rod through the coupling, the reciprocating screw rod drives the threaded cap connected therewith to move axially during rotation, along with the movement of the threaded cap, the vertical plate connected therewith also moves synchronously along the guide rail direction, the vertical plate drives the movable plate fixed at the lower end thereof and the cleaning brush mounted on the movable plate to displace, so that the cleaning brush performs sweeping operation along the surface of the base during machining, which can effectively sweep the metal scraps and dust generated during polishing to the hopper area, and finally guided into the receiving box arranged below, improving the cleanliness of the machining environment and reducing the workload of manual cleaning, when the threaded cap moves reversely (i.e. cleaning mechanism returns), the movable plate will be extruded by the extrusion block arranged at the end of the stroke, at this time, the movable plate rotates relative to the vertical plate, and rotates freely around the long rod through the sleeve plate structure of the long rod and the movable plate, thereby driving the cleaning brush to separate from the surface of the base, avoiding pushing the just generated scraps into the inside of the base, only sweeping the base during the forward movement stage, improving the overall automation level and use efficiency of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 A three-dimensional structural schematic view of a surface machining device for hub production is proposed for the invention;

[0032] Figure 2A structure diagram of a surface processing device base for hub production according to the present application is shown in the figure;

[0033] Figure 3 A structure diagram of a surface processing device driving device for hub production according to the present application is shown in the figure;

[0034] Figure 4 A surface processing device for hub production according to the present application is shown in the figure; Figure 3 A structure diagram of a surface processing device base for hub production according to the present application is shown in the figure;

[0035] Figure 5 A structure diagram of a surface processing device limiting device for hub production according to the present application is shown in the figure;

[0036] Figure 6 A surface processing device for hub production according to the present application is shown in the figure; Figure 5 A structure diagram of a surface processing device base for hub production according to the present application is shown in the figure;

[0037] Figure 7 A structure diagram of a surface processing device cleaning device for hub production according to the present application is shown in the figure;

[0038] Figure 8 A surface processing device for hub production according to the present application is shown in the figure; Figure 7 A structure diagram of a surface processing device base for hub production according to the present application is shown in the figure;

[0039] Figure 9 A surface processing device for hub production according to the present application is shown in the figure; Figure 1 A structure diagram of a surface processing device base for hub production according to the present application is shown in the figure;

[0040] Figure 10 A structure diagram of a surface processing device base for hub production according to the present application is shown in the figure.

[0041] Legend:

[0042] 1, base; 2, moving assembly; 3, polishing assembly; 4, driving device; 401, connecting plate; 402, bearing; 403, shaft; 404, rotating roller; 405, support plate; 406, driving motor; 407, first winding wheel; 408, second winding wheel; 409, first belt; 5, limiting device; 501, moving plate; 502, threaded rod; 503, handle; 504, nut; 505, pressing plate; 506, sliding rod; 507, frame; 508, limiting shaft; 509, compression roller; 510, compression spring; 6, cleaning device; 601, third winding wheel; 602, fourth winding wheel; 603, second belt; 604, support frame; 605, reciprocating screw rod; 606, threaded cap; 607, vertical plate; 608, rectangular groove; 609, long rod; 610, sleeve plate; 611, movable plate; 612, cleaning brush; 613, sleeve; 614, extrusion block; 615, return spring; 616, mounting rod; 7, receiving box; 8, hopper. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0044] Please refer to Figures 1-10 The present application provides a technical solution: a surface processing device for hub production, comprising a base 1, the base 1 is fixedly connected with a moving assembly 2, the front of the moving assembly 2 is installed with a polishing assembly 3, the base 1 is fixedly connected with a driving device 4, the base 1 is through-connected with a limiting device 5, the driving device 4 is fixedly connected with two cleaning devices 6 outside, the base 1 is placed with a receiving box 7, and the base 1 is symmetrically installed with two hoppers 8;

[0045] The driving device 4 comprises a driving motor 406 and two second winding wheels 408, the driving motor 406 is fixedly connected with a support plate 405 below, and the support plate 405 is fixedly connected in the base 1, the output end of the driving motor 406 is fixedly connected with a first winding wheel 407, the first winding wheel 407 is provided with the same first belt 409 outside the two second winding wheels 408, the second winding wheel 408 is fixedly connected with a shaft 403 inside, the shaft 403 is provided with a rotating roller 404 outside, and the rotating roller 404 is provided with anti-skid lines outside;

[0046] The limiting device 5 comprises a pressing plate 505, two sliding rods 506 are arranged in the pressing plate 505 in a penetrating mode, the sliding rods 506 are arranged in the pressing plate 505 in a penetrating mode and are connected with the pressing plate 505 in a sliding connection mode, so that the sliding rods 506 can stably move in the axial direction in the pressing plate 505. When the pressing roller 509 applies pressure, the sliding rods 506 can quickly respond to the change of the force in the vertical direction, realize the quick pressing and releasing of the limiting structure, improve the action sensitivity and structural responsiveness of the device, and facilitate the quick replacement and efficient clamping of the hub.

[0047] The same frame 507 is fixedly connected to the two sliding rods 506, two limiting shafts 508 are arranged in the frame 507, the pressing roller 509 is arranged on the limiting shaft 508, the pressing spring 510 is fixedly connected to the upper surface of the frame 507, and the pressing spring 510 is fixedly connected to the pressing plate 505.

[0048] Specifically, as shown in Figures 2-6 The driving device 4 further comprises four connecting plates 401, the connecting plates 401 are fixedly connected to the upper surface of the base 1, the bearings 402 are connected in the connecting plates 401 in a penetrating mode, the rotating shafts 403 are fixedly connected to the adjacent two bearings 402, the limiting device 5 further comprises a moving plate 501, the threaded rods 502 are arranged in the moving plate 501, the handles 503 are fixedly connected to the threaded rods 502, the nuts 504 are arranged on the threaded rods 502 in a penetrating mode, the nuts 504 are connected in the base 1 in a penetrating mode, the pressing plate 505 is fixedly connected to the back of the moving plate 501, the moving plate 501 and the threaded rods 502 are connected in a rotating connection mode, the sliding rods 506 and the pressing plate 505 are connected in a sliding connection mode, the limiting ring is partially arranged on the pressing plate 505, the pressing roller 509 and the limiting shaft 508 are connected in a rotating connection mode, and the pressing roller 509 is provided with anti-skid lines.

[0049] Specifically, as shown in Figures 7-10 The cleaning device 6 comprises a third winding wheel 601, a fourth winding wheel 602 and a supporting frame 604, the mounting rods 616 are fixedly connected to the third winding wheel 601, the mounting rods 616 are fixedly connected to the outer side of one of the second winding wheels 408, the mounting rods 616 are fixedly connected to the outer side of the second winding wheel 408, so that the second winding wheel 408 can synchronously drive the mounting rods 616 to rotate during the transmission and rotation, the cooperation not only ensures the mechanical linkage between the cleaning system and the driving system, but also saves the setting of the additional power source, realizes the integrated linkage of polishing and cleaning, and improves the structural simplicity and energy utilization rate.

[0050] The third winding wheel 601 and the fourth winding wheel 602 are sleeved with a same second belt 603, the supporting frame 604 is fixedly connected on one side of the moving assembly 2, the fourth winding wheel 602 is fixedly connected with a reciprocating screw rod 605 inside, the reciprocating screw rod 605 is rotatably connected in the supporting frame 604, the reciprocating screw rod 605 is sleeved with a threaded cap 606, the threaded cap 606 is fixedly connected with a vertical plate 607 below, the vertical plate 607 is provided with a rectangular groove 608 inside, the rectangular groove 608 is penetrated and connected with a long rod 609, the long rod 609 is sleeved with a sleeve plate 610, the sleeve plate 610 is fixedly connected with a movable plate 611 outside, and the inside and the long rod 609 are rotatably connected, so that the sleeve plate 610 can rotate around the long rod 609 when being subjected to external force (such as extrusion), thereby driving the movable plate 611 to rotate and separate from the surface of the base 1, and the structure realizes the natural switching of the cleaning brush 612 between the working state and the non-working state, avoids scratching or hindering the base 1 during the non-cleaning period, and is helpful to prolong the service life of the cleaning brush 612 and reduce interference.

[0051] The sleeve plate 610 is arranged in the rectangular groove 608, the movable plate 611 is fixedly connected with the sleeve plate 610 below, the cleaning brush 612 is fixedly connected with the movable plate 611 below, the sleeve plate 610 and the long rod 609 are rotatably connected, the cleaning brush 612 is overlapped on the upper surface of the base 1, and the cleaning device 6 further comprises a sleeve shell 613, the sleeve shell 613 is provided with an extrusion block 614, one side of the extrusion block 614 is fixedly connected with a reset spring 615, the reset spring 615 is fixedly connected in the sleeve shell 613, one side of the extrusion block 614 is provided as a hemisphere for easy extrusion, during the cleaning process, when the movable plate 611 drives the cleaning brush 612 to advance along the surface of the base 1, the extrusion block 614 is pressed into the inside of the sleeve shell 613 under the action of the cleaning force and simultaneously compresses the reset spring 615 at the rear end, during the process, the extrusion block 614 does not cause significant lifting or deviation force to the movable plate 611, but makes way by itself to keep the cleaning path unobstructed, at the same time, since the movable plate 611 and the sleeve plate 610 are arranged in the rectangular groove 608 below the vertical plate 607, the movement in the cleaning advancing direction is limited by the groove wall to a certain extent, so that the movable plate 611 and the sleeve plate 610 maintain the original posture, and the cleaning brush 612 continuously adheres to the upper surface of the base 1 for cleaning, and the structure design ensures that the cleaning brush 612 can stably and continuously perform the cleaning action under the premise that the extrusion block 614 exists, and the cleaning brush 612 will not jump or separate from the bottom surface due to structural interference, thereby improving the completeness and reliability of the cleaning.

[0052] The working principle is as follows: when in use, the motorcycle wheel hub is placed horizontally on the two opposite rotating rollers 404, then the operator rotates the moving plate 501 to the inside of the wheel hub, positions it close to the inner edge positioning area of the wheel hub, then manually rotates the handle 503 and assists in supporting the moving plate 501, with the rotation of the handle 503, the threaded rod 502 connected thereto rotates synchronously in the nut 504 and moves axially, thereby driving the compression roller 509 to compress the wheel hub towards the center, when the compression roller 509 is compressed into the inner cavity of the wheel hub, the compression force is transmitted to the frame 507 through the limiting shaft 508, thereby exerting an axial thrust on the slide rod 506 arranged in the frame 507, so that the slide rod 506 slides in the pressing plate 505, and the compression spring 510 is compressed, thereby enhancing the vertical limiting stability of the wheel hub, at this time, the wheel hub is stably positioned by the compression roller 509 and the two rotating rollers 404, the drive motor 406 is started, the drive motor 406 drives the first winding wheel 407 to rotate, the first winding wheel 407 synchronously drives the two second winding wheels 408 to rotate through the first belt 409 transmission system, the second winding wheels 408 are connected with the rotating shaft 403, and the synchronous rotation of the rotating shaft 403 drives the two rotating rollers 404 below to rotate at the same speed, thereby driving the wheel hub placed thereon to rotate at a stable and uniform speed; while the wheel hub rotates at a uniform speed for arc surface grinding, the two second winding wheels 408 synchronously rotate through the linkage structure to drive the mounting rod 616 to rotate, the mounting rod 616 is fixedly connected with the third winding wheel 601 arranged at the end thereof, the third winding wheel 601 drives the second belt 603 to synchronously transmit during rotation, thereby driving the fourth winding wheel 602 connected therewith to rotate, the fourth winding wheel 602 is connected to the reciprocating screw rod 605 through a shaft coupling, the reciprocating screw rod 605 drives the threaded cap 606 connected therewith to move axially during rotation, with the movement of the threaded cap 606, the vertical plate 607 connected therewith also moves synchronously along the guide rail direction, the vertical plate 607 drives the movable plate 611 fixed at the lower end thereof and the cleaning brush 612 mounted on the movable plate 611 to displace, so that the cleaning brush 612 performs a sweeping operation along the surface of the base 1 during processing, which can effectively sweep the metal scraps and dust generated during grinding to the funnel 8 area, and finally guided into the receiving box 7 arranged below, thereby improving the cleanliness of the processing environment and reducing the workload of manual cleaning, when the threaded cap 606 moves reversely (i.e. the cleaning mechanism returns), the movable plate 611 will be extruded by the extrusion block 614 arranged at the end of the stroke, at this time, the movable plate 611 rotates relative to the vertical plate 607 and rotates freely around the long rod 609 through the sleeve plate 610 structure of the long rod 609, thereby realizing uniform speed rotation grinding of the wheel hub and cleaning of the scraps on the upper surface of the base 1.

[0053] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A surface processing apparatus for wheel hub production, comprising a base (1), characterized in that, A movable component (2) is fixedly connected to the base (1). A polishing component (3) is installed on the front of the movable component (2). A driving device (4) is fixedly connected to the base (1). A limiting device (5) is connected through the base (1). Two cleaning devices (6) are fixedly connected to the outside of the driving device (4). A receiving box (7) is placed inside the base (1). Two funnels (8) are symmetrically installed inside the base (1). The driving device (4) includes a driving motor (406) and two second rollers (408). A support plate (405) is fixedly connected to the driving motor (406), and the support plate (405) is fixedly connected to the base (1). A first roller (407) is fixedly connected to the output end of the driving motor (406). The first roller (407) and the two second rollers (408) are covered with the same first belt (409). A rotating shaft (403) is fixedly connected inside the second roller (408). A rotating roller (404) is covered with a rotating shaft (403). The rotating roller (404) is covered with anti-slip texture. The limiting device (5) includes a pressure plate (505), two slide rods (506) are provided through the pressure plate (505), and the same frame (507) is fixedly connected to the two slide rods (506). Two limiting shafts (508) are installed in the frame (507), and pressure rollers (509) are provided on the outer sleeve of the limiting shafts (508). A compression spring (510) is fixedly connected to the upper surface of the frame (507), and the compression spring (510) is fixedly connected to the pressure plate (505). The cleaning device (6) includes a third reel (601), a fourth reel (602), and a support frame (604). A mounting rod (616) is fixedly connected inside the third reel (601). The mounting rod (616) is fixedly connected to one of the second reels (408). The third reel (601) and the fourth reel (602) are fitted with the same second belt (603). The support frame (604) is fixedly connected to one side of the moving component (2). A reciprocating screw (605) is fixedly connected inside the fourth reel (602). The reciprocating screw (605) rotates... The reciprocating screw (605) is connected to the support frame (604). A threaded cap (606) is provided on the outer sleeve of the reciprocating screw (605). A vertical plate (607) is fixedly connected below the threaded cap (606). A rectangular groove (608) is provided in the vertical plate (607). A long rod (609) is connected through the rectangular groove (608). A sleeve plate (610) is provided on the outer sleeve of the long rod (609). The sleeve plate (610) is set in the rectangular groove (608). A movable plate (611) is fixedly connected below the sleeve plate (610). A cleaning brush (612) is fixedly connected below the movable plate (611). The sleeve plate (610) and the long rod (609) form a rotatable connection. The cleaning brush (612) overlaps the upper surface of the base (1). The cleaning device (6) also includes a housing (613). The housing (613) is provided with a squeezing block (614). A return spring (615) is fixedly connected to one side of the squeezing block (614). The return spring (615) is fixedly connected to the housing (613). One side of the squeezing block (614) is set as a hemisphere for easy squeezing. During the cleaning process, as the movable plate (611) drives the cleaning brush (612) forward along the surface of the base (1), when the movable plate (611) contacts the squeezing block (614) located in front, the squeezing block (614) is pressed inward into the housing (613) under the action of the cleaning force, and at the same time, the return spring (615) at its rear end is compressed. During this process, the squeezing block (614) will not cause significant lifting or offset force to the movable plate (611). When the threaded cap (606) moves in the opposite direction, the movable plate (611) will be squeezed by the squeezing block (614). At this time, the movable plate (611) will rotate relative to the vertical plate (607) and achieve free rotation around the long rod (609) through its sleeve structure with the long rod (609), thereby driving the cleaning brush (612) to detach from the surface of the base (1).

2. The surface processing apparatus for wheel hub production according to claim 1, characterized in that, The drive device (4) also includes four connecting plates (401), which are fixedly connected to the upper surface of the base (1). A bearing (402) is connected through the connecting plate (401), and the rotating shaft (403) is fixedly connected to two adjacent bearings (402).

3. The surface processing apparatus for wheel hub production according to claim 1, characterized in that, The limiting device (5) also includes a movable plate (501), a threaded rod (502) is provided in the movable plate (501), a handle (503) is fixedly connected to the threaded rod (502), and a nut (504) is provided on the threaded rod (502), which is connected through the base (1).

4. The surface processing apparatus for wheel hub production according to claim 3, characterized in that, The pressure plate (505) is fixedly connected to the back of the movable plate (501), and the movable plate (501) and the threaded rod (502) form a rotatable connection.

5. The surface processing apparatus for wheel hub production according to claim 3, characterized in that, The slide rod (506) and the pressure plate (505) form a sliding connection, and the upper part of the slide rod (506) is fitted with a limiting ring.

6. The surface processing apparatus for wheel hub production according to claim 3, characterized in that, The pressure roller (509) and the limiting shaft (508) are rotated together, and the pressure roller (509) is provided with anti-slip texture.

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