Polishing device for casting hub

Abstract

The utility model discloses a polishing device for casting a hub, and belongs to the technical field of polishing equipment. The polishing device for casting the hub comprises a workbench, a rotating disc is installed on the workbench, a three-jaw chuck is installed on the rotating disc, the three-jaw chuck comprises a chuck body and a clamping jaw installed on the chuck body, and the clamping jaw comprises a clamping jaw base connected with the chuck body in a sliding and clamping mode and a first cross arm installed on the top of the clamping jaw base. A first vertical arm abutting against the inner wall of the hub is arranged at one end of the outer side of the first transverse arm, a supporting block for supporting the hub is arranged in the middle of the first vertical arm, and a grinding wheel mechanism used for grinding the hub is installed on the outer side of the three-jaw chuck. The hub supporting device has the advantages that the hub can be conveniently clamped, and the supporting effect on the hub is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to polishing equipment technical field especially uses polishing device for casting wheel hub. BACKGROUND

[0002] When the automobile wheel hub is produced, because its shape is more irregular, so often adopts the mode of casting to produce the automobile wheel hub, but the precision of the wheel hub after casting cannot reach the use requirement, so need to carry out the surface polishing treatment to the wheel hub.

[0003] In the utility model with the publication number CN210452203U, a kind of wheel hub casting polishing device, including workbench, clamping table and polisher, the bottom of the workbench is equipped with driving motor, the output shaft of the driving motor is located above the workbench and is transmission-connected with clamping table, the top of the clamping table is about the vertical centerline of clamping table and is opened with three groups of sliding grooves in annular array, and the inside of three groups of sliding grooves is slidably connected with slider, and the top of the slider is rotationally connected with clamping column by pivot, the top of the workbench is equipped with translation frame on one side of clamping table, and fixed frame is embedded horizontally in the inside of the translation frame.The utility model in the present application, first, internally provided with centering clamping mechanism, this structure is convenient for the clamping and fixing treatment of different diameter wheel hub, improves the stability of wheel hub clamping, second, internally provided with rotary polishing mechanism, this structure can rotate the outer wall of wheel hub and carry out polishing treatment, to improve the efficiency of wheel hub casting polishing treatment.

[0004] The above-mentioned device has the following problems in use: 1. When the clamping column is used to clamp the wheel hub, the wheel hub cannot be positioned in the vertical direction; 2. The three clamping columns are independently adjusted, which is not easy to align with the center of the clamping table, affecting the uniformity of polishing. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the problem that the wheel hub of the casting wheel hub polishing device in the prior art is not easy to align with the center of the clamping structure, and provides a polishing device for casting wheel hub.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] The polishing device for casting wheel hub comprises a workbench, a rotating disc installed on the workbench, a three-jaw chuck installed on the rotating disc, a chuck body and a chuck claw installed on the chuck body, a chuck claw seat slidably connected with the chuck body, a first horizontal arm installed on the top of the chuck claw seat, a first vertical arm provided at one end of the outer side of the first horizontal arm and abutting against the inner wall of the wheel hub, a lifting block provided at the middle of the first vertical arm for lifting the wheel hub, and a grinding wheel mechanism installed on the outer side of the three-jaw chuck for polishing the wheel hub.

[0008] Further, the first vertical arm is erected upward, and the lifting block is located outside the first vertical arm.

[0009] Further, a non-slip pad is arranged between the first vertical arm and the lifting block.

[0010] Further, an outer wall of the non-slip pad is attached to an inner wall of the wheel hub.

[0011] Further, the grinding wheel mechanism comprises an L-shaped crank, an electric cylinder and a grinding wheel, the L-shaped crank is rotatably installed on the workbench, two ends of the electric cylinder are respectively hinged between the workbench and the L-shaped crank, and the L-shaped crank is provided with the grinding wheel.

[0012] Further, a spring rod is arranged between the electric cylinder and the L-shaped crank.

[0013] Further, the spring rod comprises an outer rod, an inner rod, a clamping block and a spring, a sliding groove is formed in the inner part of the outer rod, the clamping block is slidably arranged in the sliding groove, one end of the inner rod is connected with the electric cylinder, the other end is connected with the clamping block, and the spring is arranged in the inner part of the clamping block to press the grinding wheel against the outer wall of the wheel hub.

[0014] Compared with the prior art, the polishing device for the cast wheel hub has the following beneficial effects:

[0015] When the polishing device for the cast wheel hub is used, the outer diameter of the clamping jaw is slightly smaller than the inner diameter of the wheel hub, then the wheel hub is placed on the clamping jaw, the lifting block is used to press against the wheel hub, the wheel hub is stably placed on the clamping jaw, then the clamping jaw is adjusted outward, the inner wall of the wheel hub is clamped from inside to outside, the rotating disc is started to drive the three-jaw chuck and the wheel hub to rotate synchronously, the outer wall of the wheel hub is polished by the outer grinding wheel mechanism, compared with the prior art, the wheel hub can be conveniently positioned in the vertical direction, the three-jaw chuck has a self-centering function, the concentricity between the wheel hub, the three-jaw chuck and the rotating disc can be ensured, and the polishing uniformity is improved.

[0016] Other advantages, objects and features of the present application will be apparent to those skilled in the art from the following specification. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is an overall polishing wheel hub effect schematic view of the present application;

[0018] Figure 2 It is an overall structure perspective schematic view of the present application;

[0019] Figure 3The utility model discloses a hub and the assembly effect section structure main view schematic drawing of device,

[0020] Figure 4 The utility model discloses a Figure 3 The structure amplification schematic drawing of part A,

[0021] Figure 5 The utility model discloses a claw structure three -dimensional schematic diagram,

[0022] Figure 6 The utility model discloses an outer rod section effect internal structure schematic drawing.

[0023] In the drawing,

[0024] 1, workbench, 2, rotating disc, 3, three-jaw chuck, 301, chuck body, 302, claw, 303, claw seat, 304, first cross arm, 305, first vertical arm, 306, lift block, 307, non-slip mat, 4, grinding wheel mechanism, 401, electric cylinder, 402, spring rod, 403, hinged seat, 404, second cross arm, 405, second vertical arm, 406, drive motor, 407, polishing grinding wheel, 408, outer rod, 409, inner rod, 410, clamping block, 411, sliding slot, 412, spring, 413, pin shaft hole, 5, hub. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0026] With reference to Figures 1-6 The utility model discloses a polishing device for casting hub, including workbench 1, install rotating disc 2 on workbench 1, rotating disc 2 is connected with workbench 1 rotationally, the bottom of workbench 1 is fixedly installed with motor, and the working end of motor is connected with rotating disc 2, drives rotating disc 2 to rotate.

[0027] Install three-jaw chuck 3 on rotating disc 2, and three-jaw chuck 3 and rotating disc 2 are concentrically arranged, three-jaw chuck 3 includes chuck body 301 and the claw 302 of installation on chuck body 301, and the claw 302 includes the claw seat 303 of sliding joint with chuck body 301, and the inside installation of chuck body 301 has helical groove and bevel gear, drive three claws 302 to be close to or away from the center of circle synchronously, and the driving principle refers to the three-jaw chuck for lathe on the market.

[0028] The first horizontal arm 304 is installed on the top of the claw seat 303, and a first vertical arm 305 abutting against the inner wall of the hub 5 is welded at one end outside the first horizontal arm 304. A lifting block 306 lifting the hub 5 is welded at the middle of the first vertical arm 305. When the hub 5 is sleeved outside the claw 302, it is placed on the lifting block 306, and then the first vertical arm 305 is adjusted outward, the outer wall of the first vertical arm 305 abuts against the inner wall of the hub 5, clamping the hub 5. The grinding wheel mechanism 4 for grinding the hub 5 is installed on the outside of the three-jaw chuck 3, and the hub 5 is ground by using the grinding wheel mechanism.

[0029] The first vertical arm 305 is vertically erected upward, and the lifting block 306 is located outside the first vertical arm 305, facilitating lifting the bottom of the hub 5 through the top of the lifting block 306 to support the hub 5 in the air, facilitating grinding the edge of the bottom of the hub 5 (if the bottom of the hub 5 is close to the rotating disc 2 or the workbench 1, it is difficult to grind the edge).

[0030] A non-slip pad 307 is installed between the first vertical arm 305 and the lifting block 306, which can be selected as a rubber pad to increase the friction between the first vertical arm 305, the lifting block 306 and the hub 5.

[0031] The outer wall of the non-slip pad 307 is attached to the inner wall of the hub 5, as shown in detail in Figure 4 The sidewall of the hub 5 is an irregular rotating body structure similar to a cylindrical structure when it is cast, and the outer wall of the non-slip pad 307 is L-shaped and arc-shaped, which is the same as the contour of the lower part of the inner wall of the hub 5, so as to improve the attachment between the non-slip pad 307 and the hub 5 and improve the clamping effect.

[0032] The grinding wheel mechanism 4 includes an L-shaped crank, an electric cylinder 401 and a grinding wheel 407. The L-shaped crank is rotatably installed on the workbench 1, and the grinding wheel 407 is installed on the L-shaped crank. The L-shaped crank includes a second vertical arm 405 and a second horizontal arm 404. The bottom of the second vertical arm 405 is rotatably installed on the workbench 1, and the top of the second vertical arm 405 is fixedly connected with one end of the second horizontal arm 404. The end of the second horizontal arm 404 away from the second vertical arm 405 is provided with a driving motor 406 and the grinding wheel 407. The driving motor 406 is fixedly installed on the bottom of the second horizontal arm 404, and the grinding wheel 407 is rotatably installed on the top of the second horizontal arm 404 through a rotating shaft, and the rotating shaft is connected with the working end of the driving motor 406.

[0033] The grinding wheel 407 is a special-shaped grinding wheel, and the outer contour of the grinding wheel 407 is the same as the contour of the outer wall of the hub 5, which can be obtained by customization or modified by using a grinding wheel modification tool.

[0034] There are multiple grinding wheel mechanisms 4, and the multiple grinding wheel mechanisms 4 are uniformly distributed around the three-jaw chuck 3, improving the grinding efficiency.

[0035] The two ends of the electric cylinder 401 are respectively hinged between the workbench 1 and the L-shaped crank arm, and the hinge seat 403 is fixedly connected to one side of the second vertical arm 405. When the electric cylinder 401 is extended or retracted, the L-shaped crank arm is driven to rotate, and the polishing wheel 407 is further driven to approach or move away from the outer wall of the hub 5.

[0036] The spring rod 402 is installed between the electric cylinder 401 and the L-shaped crank arm, and is installed between the hinge seat 403 and the working end of the electric cylinder 401. When the electric cylinder 401 is retracted, the L-shaped crank arm is driven to rotate through the spring rod 402, so that the polishing wheel 407 is installed at a predetermined pressure on the outer wall surface of the grinding wheel.

[0037] The spring rod 402 includes an outer rod 408, an inner rod 409, a clamping block 410, and a spring 412. The inner part of the outer rod 408 is processed with a sliding groove 411, the clamping block 410 is slidably installed in the sliding groove 411, the clamping block 410 slides along the extension direction of the electric cylinder 401 (the axis direction of the outer rod 408), one end of the inner rod 409 is connected with the electric cylinder 401, and the other end is connected with the clamping block 410. The radial dimension of the clamping block 410 is greater than that of the inner rod 409, the spring 412 for pressing the polishing wheel 407 against the outer wall of the hub 5 is installed in the clamping block 410, the spring 412 is clamped in the right space of the clamping block 410, and a pin hole 413 is formed in the end of the outer rod 408 away from the inner rod 409, and the pin hole 413 is rotatably connected with the pin in the hinge seat 403. Figure 6 As shown in

[0038] As shown in Figure 6 When the electric cylinder 401 is extended, the inner rod 409 is pushed to the right, the inner rod 409 pushes the clamping block 410 to the right, the clamping block 410 compresses the spring 412 to the right, the spring 412 pushes the outer rod 408 to the right, the outer rod 408 pushes the second vertical arm 405 to rotate to the right, and the second horizontal arm 404 is driven to rotate to the side close to the hub 5, and the polishing wheel 407 is pressed against the outer wall of the hub 5.

[0039] When the electric cylinder 401 is retracted, the inner rod 409 is pulled to the left, the inner rod 409 pulls the clamping block 410 to the left, and when the clamping block 410 contacts the left side of the sliding groove 411, the outer rod 408 is driven to move to the left, thereby driving the second vertical arm 405 to rotate in the opposite direction, and further driving the polishing wheel 407 to move away from the side wall of the hub 5.

[0040] Working principle: when in use, the hub 5 is placed on the supporting block 306, and then the clamping jaw 302 is adjusted outward, so that the outer wall of the anti-skid pad 307 abuts against the inner wall of the hub 5, the hub 5 is clamped on the three-jaw chuck 3, and the rotating disc 2 is started to drive the hub 5 to rotate;

[0041] Then the electric cylinder 401 and the driving motor 406 are started, the driving motor 406 drives the polishing wheel 407 to rotate, the electric cylinder 401 drives the L-shaped crank to rotate, and drives the polishing wheel 407 to press on the outer wall surface of the hub 5, thereby polishing the hub 5.

[0042] The above merely describes a preferred embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

[0043] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled person in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0044] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and the skilled person in the art can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A polishing device for casting wheel hubs, comprising a worktable (1) on which a rotating disc (2) is mounted, characterized in that, The rotating disc (2) is provided with a three-jaw chuck (3), the three-jaw chuck (3) comprises a chuck body (301) and a chuck jaw (302) installed on the chuck body (301), the chuck jaw (302) comprises a chuck jaw base (303) slidably connected with the chuck body (301), a first horizontal arm (304) installed on the top of the chuck jaw base (303), one end of the outer side of the first horizontal arm (304) is provided with a first vertical arm (305) abutting against the inner wall of the wheel hub (5), the middle part of the first vertical arm (305) is provided with a lifting block (306) for lifting the wheel hub (5), the outer side of the three-jaw chuck (3) is provided with a grinding wheel mechanism (4) for grinding the wheel hub (5).

2. The polishing apparatus for casting wheel hub according to claim 1, wherein The first vertical arm (305) is vertically erected upward, and the lifting block (306) is located outside the first vertical arm (305).

3. The polishing apparatus for casting wheel hub according to claim 1, wherein A non-slip pad (307) is arranged between the first vertical arm (305) and the lifting block (306).

4. The polishing apparatus for casting wheel hubs according to claim 3, wherein The outer wall of the non-slip pad (307) is attached to the inner wall of the wheel hub (5).

5. The polishing apparatus for casting wheel hubs according to claim 1, wherein The grinding wheel mechanism (4) comprises an L-shaped crank, an electric cylinder (401) and a grinding wheel (407), the L-shaped crank is rotatably installed on the workbench (1), the two ends of the electric cylinder (401) are respectively hinged between the workbench (1) and the L-shaped crank, and the L-shaped crank is provided with the grinding wheel (407).

6. The polishing apparatus for casting wheel hubs according to claim 5, wherein A spring rod (402) is arranged between the electric cylinder (401) and the L-shaped crank.

7. The polishing apparatus for casting wheel hubs according to claim 6, wherein The spring rod (402) comprises an outer rod (408), an inner rod (409), a clamping block (410) and a spring (412), the inner part of the outer rod (408) is provided with a sliding groove (411), the clamping block (410) is slidably arranged in the sliding groove (411), one end of the inner rod (409) is connected with the electric cylinder (401), the other end is connected with the clamping block (410), and the clamping block (410) is provided with the spring (412) for pressing the grinding wheel (407) against the outer wall of the wheel hub (5).

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