KR101654842B1 - Grinding apparatus for wheel - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a wheel polishing apparatus, and more particularly, to an automotive wheel polishing apparatus for polishing a wheel applied to a wheel of an automobile. The wheel polishing apparatus of the present invention comprises: a wheel transferring unit for transferring a wheel to position the wheel at a polishing position; A wheel fixing portion for fixing the wheel located at the polishing position; A sensing unit for sensing a size of the wheel to be transferred; And polishing means for polishing the wheel through the operation of the brush after the position of the brush is automatically controlled by the control of the control unit which receives the signal sensed by the sensing unit.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a grinding wheel,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a wheel polishing apparatus, and more particularly, to an automotive wheel polishing apparatus for polishing a wheel applied to a wheel of an automobile.

BACKGROUND ART [0002] A wheel used in a transportation apparatus such as an automobile is composed of a rim supporting a tire, a hub coupled to a shaft, and a rim support extending to the hub to support the rim. The rim support has various forms in consideration of the type of the vehicle and the driver's taste.

A wheel having such a configuration is manufactured by casting or forging, and the surface is rough after manufacturing, so that the polishing process must be performed. If it is used directly after casting or forging without going through the polishing process, the surface plating is not smooth and there is a fear that the operator may be injured by the rough part when replacing the tire.

BACKGROUND ART Conventionally, a technique for polishing a car wheel has been disclosed in Korean Patent Laid-Open Publication No. 2001-0016175 (hereinafter, referred to as "Prior Art 1") and Korean Patent Publication No. 2004-0017404 Quot; Document 2 ").

In the case of the automobile wheel polishing apparatus according to the prior art document 1, after the wheel mounted on the wheel drive apparatus is positioned in the firing chamber, the wheel driving apparatus is driven to vibrate the firing chamber while rotating the wheel to polish the wheel.

In the case of the automobile wheel polishing apparatus according to the prior art document 2, the rims of the wheels are fixed by a plurality of fixing holders, and then the wheels are polished by using a polishing machine. The grinding wheel is rotated.

According to the above-mentioned prior art documents, the polishing of the automotive wheel is performed mechanically without manually performing the operation of the automobile, thereby improving the quality of the product. However, when the size of the wheel is changed, There is a problem in that the work is complicated and the wheels are not polished as a whole and only partly polished.

Korean Patent Publication No. 2001-0016175 (published on Mar. 5, 2001) Korean Patent Publication No. 2004-0017404 (published Feb. 27, 2004)

SUMMARY OF THE INVENTION An object of the present invention is to provide a wheel polishing apparatus capable of smoothly performing a polishing operation even when the size of an inserted wheel is changed and improving polishing quality have.

The wheel polishing apparatus of the present invention comprises: a wheel transferring unit for transferring a wheel to position the wheel at a polishing position; A wheel fixing portion for fixing the wheel located at the polishing position; A sensing unit for sensing a size of the wheel to be transferred; And polishing means for polishing the wheel through the operation of the brush after the position of the brush is automatically controlled by the control of the control unit which receives the signal sensed by the sensing unit.

The wheel transfer section includes: a conveyor for moving the wheel in a horizontal direction; And a wheel platform that raises the wheel to a polishing height after the conveyor is stopped.

The wheel fixing portion is provided to be spaced apart from the upper side of the conveyor and is supported by the support rollers supporting both sides of the wheel when the spaced apart wheel is located. A roller support rotatably supporting a support roller and being moved in a direction approaching or moving away from a wheel positioned between the support rollers; Roller driving means for rotating the support roller to rotate the wheel in place; And support support driving means for controlling movement of the roller support.

The sensing unit includes: a height sensor for sensing the height of the wheel; And a diameter sensing sensor for sensing the diameter of the wheel.

The polishing means comprises: a body moving in a horizontal direction and a vertical direction on a frame; A brush support which is installed vertically or obliquely to the body so as to be able to move up and down and on which the brush is mounted; An elastic member for elastically supporting the brush support against the body; Body moving means for moving the body; And brush rotating means for rotating the brush.

The elastic member is an air bellows.

A plurality of the wheel transfer sections, the wheel fixing section and the polishing means are arranged side by side on the transfer path of the wheel so that different types of polishing operations can be sequentially performed.

The wheel is conveyed so that the inner space faces downward, and the wheel grinding means is configured to grind the inner edge of the wheel, the inner upper surface of the wheel, and the outer upper surface of the wheel, respectively.

In the case of the wheel polishing means for polishing the inner edge portion of the wheel, the brush is positioned in the oblique direction.

The grinding means for grinding the inner edge and the inner upper surface of the wheel is positioned below the wheel, and the grinding means for grinding the outer upper surface of the wheel is located above the wheel.

According to the wheel polishing apparatus of the present invention, the size of the wheel inserted through the sensor is detected and the position of the brush is automatically controlled according to the size of the wheel. Thus, regardless of the type and size of the wheel, The work can be smoothly performed.

Further, according to the wheel polishing apparatus of the present invention, various parts inside and outside of the wheel can be continuously and individually polished while the wheel is being transferred, and all operations are automatically performed, so that excellent polishing quality and productivity can be expected.

1 is a perspective view showing an example of a wheel to be polished by the wheel polishing apparatus of the present invention.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a wheel polishing apparatus.
3 is a front view showing a wheel polishing apparatus according to a preferred embodiment of the present invention.
4 is a front view showing a first polishing section;
5 is a side view showing a first polishing section;
6 is a front view showing a second polishing section;
7 is a side view showing a second polishing section;
8 is a front view showing a third polishing section;
9 is a side view showing a third polishing section.
10 is a front view showing a fourth polishing section.
11 is a side view showing a fourth polishing section.

Hereinafter, preferred embodiments of the wheel polishing apparatus of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing an example of a wheel to be polished by the wheel polishing apparatus of the present invention.

A wheel 10 used in a transportation device such as an automobile includes a rim 11 supporting a tire, a hub 12 coupled to an axle, and a rim support portion 13 extending from the hub 12 and supporting the rim 11 ). The rim support portion 13 may be modified into various forms. In the figure, a plurality of rim support portions 13 are shown extending radially around the hub 12. A space is formed between the rim support portions (13).

2 is a process diagram showing a process of polishing a wheel by a wheel polishing apparatus according to a preferred embodiment of the present invention.

The step of grinding the wheel by the wheel grinding apparatus according to the present invention will now be described with reference to the steps of turning the wheel S10, detecting the wheel size S20, polishing the inside of the wheel S30, polishing the outside of the wheel S40, Step S50.

In step S10 of injecting the wheel, the inner space of the wheel is directed downward, but not limited thereto, and the inner space may be turned upward. In the following description of the wheel polishing apparatus according to the preferred embodiment of the present invention, it is assumed that the inner space of the wheel is inserted in a downward direction.

In step S20 of detecting the wheel size, the height of the wheel is sensed through the height sensor 110 and the diameter of the wheel is sensed through the diameter sensor 120, respectively. The wheel size detection may be performed immediately after the wheel is inserted, or may be performed separately for each polishing step. In addition, the height of the wheel may be detected immediately after the wheel is inserted, and the diameter of the wheel may be detected in each of the polishing steps. In the following description of the wheel polishing apparatus according to the preferred embodiment of the present invention, it is assumed that the height of the wheel is detected at the step of applying the wheel and the diameter of the wheel is detected at each polishing step. The operation of the respective components constituting the wheel polishing apparatus of the present invention is automatically controlled by the control of the control unit which receives the sensing signal from the sensing unit 100 composed of the height detection sensor 110 and the diameter detection sensor 120. The sensing unit 100 is a component of the wheel polishing apparatus 1 of the present invention to be described later.

In step S30 of grinding the inside of the wheel, the inner corner portion of the wheel (i.e., the corner portion where the rim support portion and the side rim meet) and the inner upper surface of the wheel (i.e., the bottom portion of the hub and the bottom portion of the rim support portion) And each is polished using a polishing means.

In the step of polishing the outside of the wheel (S40), a process of polishing the outer upper surface of the wheel by positioning the brush in a direction orthogonal to the rim supporting portion, and polishing the outer upper surface of the wheel by positioning the brush in the longitudinal direction of the rim supporting portion Respectively.

3 is a front view showing a wheel polishing apparatus according to a preferred embodiment of the present invention.

According to the wheel polishing apparatus 1 of the present invention, the grinding operation of the wheel is performed in four steps in sequence. To this end, the wheel polishing apparatus 1 according to the present invention has four polishing sections 200, 300, 400 and 500.

In the first polishing section 200, the inner edge portion of the wheel is polished. In the second polishing section 300, the inner upper surface portion of the wheel is polished. In these polishing sections, the polishing means is placed under the wheel.

In the third polishing section 400, the brush is positioned in a direction orthogonal to the rim support portion to polish the outer upper surface portion of the wheel. In the fourth polishing section 500, the brush is positioned in the longitudinal direction of the rim support portion, The upper surface portion is polished. In the fourth polishing section 500, the portions where the rim support portions are separated from the hub and the portions where the rim support portion and the rim meet are mainly focused on the edge portions of the upper surface of the rim support portion 400 in the third polishing section 400 do.

The polishing sections 200, 300, 400, and 500 are sequentially disposed according to a direction in which the wheels are inserted and transported. However, the polishing sections 200, 300, 400, The placement position may be configured differently.

4 is a front view showing a first polishing section, and Fig. 5 is a side view showing a first polishing section.

The first polishing section 200 includes a first frame 210, a first wheel transfer section 220, a first wheel fixing section 230, a first polishing section 240 and a first ventilation hood 250 do.

The first wheel transfer unit 220 transfers a wheel to a polishing position. The first wheel transfer unit 220 includes a pair of conveyors 221 arranged horizontally in a front-rear direction at a middle height of the first frame 210, And a wheel platform 222 for raising the wheel to a polishing height after stopping the wheel 221. Conveyor rollers 223 around which the conveyor 221 is wound are positioned on the right and left sides of the first frame 210. Wheel support rollers (not shown) support the wheels on the roller shaft on which the conveyor rollers 223 are mounted Respectively. Between the two conveyors 221 located side by side, the wheel platform 222 is supported by the cylinder 224 so as to be able to move up and down. The cylinder 224 is installed vertically on the first frame 210. On the other hand, a brush through hole (not shown) through which the downward brush 242a passes is formed at the center of the wheel platform 222. [

The first wheel fixing part 230 rotatably fixes the wheel positioned at the polishing position. The first wheel fixing part 230 is installed to be spaced apart from the upper side of the conveyor 221, and supports the both sides of the wheel when the wheel is spaced apart. A roller support 231 which rotatably supports the support roller 231 and which is moved in a direction approaching or moving away from the wheel positioned between the support rollers 231, A driving motor 233, and a cylinder 234 for moving the roller support 232. The support roller 231 is provided with a wheel engagement groove 231a through which the lower edge of the wheel is inserted and one of the support rollers 231 is connected to the roller driving motor 233 through a belt or a sprocket. The roller support 232 is installed to slide horizontally on the first frame 210.

The first polishing means 240 polishes the inner edge portion of the wheel. The first polishing means 240 includes a body 241 disposed below the wheel in the first frame 210 and controlled by the driving means to move in the horizontal and vertical directions, A brush support table 242 movably mounted on the body 241 in an oblique direction and having a brush 242a rotatably mounted on the upper end thereof, a load cell 242 supporting the brush support 242 on the body 241 so as to be movable up and down, An air bellows 244 provided on the load cell 243 for elastically supporting the brush support 242 and finely controlling the movement of the brush support 242 while being supported by the brush support 242, And a buffer guide 245 that buffers when the body 242 slides along the body 241. [ A brush motor 246 for driving the brush 242a is mounted on the body 241 or the brush support 242 and a body moving motor 242 for moving the body 241 in the horizontal direction and the vertical direction is mounted on the first frame 210. [ A screw 247 and a screw 248 are provided. Meanwhile, in the case of the buffer guide 245, various embodiments other than the bellows type may be used.

According to the first polishing means 240 configured as described above, the body 241 is moved in the horizontal direction and the vertical direction by the operation of the body moving motor 247, so that the pre-polishing brush 242a is positioned at the polishing position, In the polishing process, fine positioning of the brush 242a is performed by the air bellows 244.

The first ventilation hood 250 is installed on the upper part of the first frame 210 to exhaust the dust generated during wheel polishing to the environment to be maintained comfortably. The first ventilation hood 250 is maintained in a state of being lowered close to the wheel during polishing, but is raised away from the wheel after polishing.

Meanwhile, the diameter of the wheel is detected by the diameter detection sensor not shown in the first polishing section 200. The diameter sensing sensor senses the diameter of the wheel in a form that senses the moving distance when the roller support 232 constituting the first wheel fixing portion 230 moves toward the wheel.

Hereinafter, a process of polishing a wheel in the first polishing section 200 having the above-described configurations will be described.

When the wheel is placed on the conveyor 221 while being inserted into the entrance of the first polishing section 200, the wheel is moved by a predetermined distance in the horizontal direction by the movement of the conveyor 221 and is mounted on the wheel platform 222, And is lifted to the polishing height by the lifting of the wheel platform 222.

The lower end of the wheel is firmly fitted to the support roller 231 while the roller support table 232 is moved to the wheel side and the support roller 231 is driven by the drive of the roller drive motor 233, The wheels rotate together. The wheel may continue to rotate in only one direction, or it may rotate in one direction and then in the opposite direction.

When the wheel is positioned at the polishing height, the body 241 constituting the first polishing means 240 moves, and the brush 242a is located at the polishing position of the inner edge portion of the wheel. The brush motor 246 By operating the brush 242a, the inner edge portion of the wheel is polished. At this time, as the body 241 moves, the brush 242a is also moved and moved together. Since the brush support 242 supporting the brush 242a can be finely adjusted by the air bellows 244, even when the pressing force transmitted from the polishing portion is changed when the polishing portion is polished by the brush 242a, 242a may contact the polishing portion with a constant contact strength so that uniform polishing can be performed.

The first ventilation hood 250 before the wheel polishing descends close to the wheel to discharge the dust generated in the polishing to the outside, thereby keeping the environment of the worker well.

When the grinding of the wheel is completed, the body 241 constituting the first grinding means 240 is lowered, the first ventilation hood 250 is lifted, and the rotation of the support roller 231 for supporting the wheel is stopped . The wheel hoisting table 222 supporting the wheel is lowered so that the wheel is seated on the conveyor 221 and the wheel is moved from the first polishing section 200 to the neighboring second polishing section 300 by the operation of the conveyor 221, Lt; / RTI >

6 is a front view showing a second polishing section, and Fig. 7 is a side view showing a second polishing section.

The second polishing section 300 includes a second frame 310, a second wheel transfer section 320, a second wheel fixing section 330, a second polishing section 340 and a second ventilation hood 350 do. Here, the second frame 310, the second wheel transfer unit 320, the second wheel fixing unit 330, and the second ventilation hood 350 may be installed in the first frame 210, The first wheel transfer unit 220, the first wheel fixing unit 230, and the first ventilation hood 250 are identical.

The second polishing means 340 is the same as the first polishing means 240 except that the brush support table 341 supporting the brush 341a is vertically installed. In the case of the second polishing means 340, the brush support 341 and the brush 341a are vertically installed to polish the inner upper surface portion of the wheel.

FIG. 8 is a front view showing a third polishing section, and FIG. 9 is a side view showing a third polishing section.

The third polishing section 400 includes a third frame 410, a third wheel transfer section 420, a third wheel fixing section 430, a third polishing section 440 and a third ventilation hood 450 do.

Here, the height of the third frame 410 is higher than that of the first and second frames 210 and 310. The third wheel transfer unit and the third wheel fixing unit 430 are the same as the first and second wheel transfer units 220 and 320 and the first and second wheel fixing units 230 and 330.

The third polishing means 440 is located above the wheel so as to grind the outer upper surface of the wheel. The third polishing means 440 has the same structure as that of the second polishing means 340 except that the position of the third polishing means 440 is different from the direction of the brush 441a. The brush 441a of the third polishing means 440 is positioned in a direction orthogonal to the rim support portion so that the both end portions of the upper surface of the rim support portion are mainly polished.

On the other hand, the third ventilation hood 450 is installed at the lower side of the wheel to discharge dust generated during wheel polishing to the outside.

10 is a front view showing a fourth polishing section, and Fig. 11 is a side view showing a fourth polishing section.

The fourth polishing section 500 includes a fourth frame 510, a fourth wheel transfer section 520, a fourth wheel fixing section 530, a fourth polishing section 540 and a fourth ventilation hood 550 do. The fourth frame 510, the fourth wheel transfer unit 520, the fourth wheel fixing unit 530 and the fourth ventilation hood 550 are connected to the third frame 410, the third wheel transfer unit 420, The third wheel fixing part 430 and the third ventilation hood 450 shown in Fig. The fourth polishing means 540 is the same as the third polishing means 440 except that the direction of the brush 541a is different.

The brush 541a of the fourth polishing means 540 is positioned in the longitudinal direction of the rim support portion so that the outer upper surface of the rim support portion abrades the portion where the rim support portions are separated from the hub and the rim support portion and the rim portion .

As described above, the wheel polishing apparatus of the present invention has been described in detail with reference to the preferred embodiments. However, the present invention is not limited to the specific embodiments, The present invention is not limited thereto.

1: Wheel polishing apparatus 10: Wheel
11: Rim 12: Hub
13: rim support part 100: sensing part
110: height detecting sensor 120: diameter detecting sensor
200; First polishing section 210: First frame
220: first wheel feed section 221: conveyor
222: Wheel platform 223: Conveyor roller
224: cylinder 230: first wheel fixing portion
231: Support roller 232: Roller support
233: roller drive motor 234: cylinder
240: first polishing means 241: body
242: Brush support 243: Load cell
244: air bellows 245: buffer guide
246: brush motor 237: body moving motor
248: screw 250: first ventilation hood
300: second polishing section 310: second frame
320: second wheel transfer section 330: second wheel fixing section
340: second polishing means 350: second ventilation hood
400: third polishing section 410: third frame
420: third wheel feed section 430: third wheel fixing section
440: third polishing means 450: third ventilation hood
500: fourth polishing section 510: fourth frame
520: fourth wheel feed portion 530: fourth wheel fixing portion
540: fourth polishing means 550: fourth ventilation hood

Claims (10)

A wheel transfer unit for transferring the wheel to position the wheel at the polishing position;
A wheel fixing portion for fixing the wheel located at the polishing position;
A sensing unit for sensing a size of the wheel to be transferred;
Polishing means for polishing the wheel through the operation of the brush after the position of the brush is automatically controlled by the control unit which receives the signal sensed by the sensing unit; And
And ventilation means for venting dust generated during wheel polishing to the outside,
The wheel-
A conveyor for moving the wheel in a horizontal direction; And
And a wheel platform lifting the wheel to a polishing height after the conveyor is stopped,
The wheel-
A support roller installed to be spaced apart from the upper side of the conveyor and supporting both sides of the wheel when the spaced apart wheel is located;
A roller support rotatably supporting the support roller and being moved in a direction toward or away from the wheel positioned between the support rollers;
Roller driving means for rotating said support roller for in-situ rotation of the wheel; And
And support base driving means for controlling the movement of the roller support,
The sensing unit includes:
A height detection sensor for detecting the height of the wheel; And
And a diameter sensing sensor for sensing the diameter of the wheel,
The polishing means comprises:
A body moving in a horizontal direction and a vertical direction on the frame;
A brush support which is installed vertically or obliquely to the body so as to be able to be elevated and on which the brush is mounted;
A load cell supporting the brush support table so as to be able to move up and down on the body;
An air bellows provided in the load cell for elastically supporting the brush support while finely controlling movement of the brush support;
A cushioning guide provided on the brush support and having a buffering effect when the brush support is slid along the body;
Body moving means for moving the body; And
And brush rotating means for rotating the brush,
The air bellows finely controls the movement of the brush support so that even when the pressing force transmitted from the polishing part is changed when the polishing part is polished with the brush, the brush contacts the polishing part with a constant contact strength and uniform polishing is performed,
A step of performing successive polishing on the wheels transferred with the inner space facing downward by a plurality of polishing sections,
A first polishing section in which the polishing means is configured to polish the inner edge portion of the wheel, a second polishing section in which the polishing means is configured to polish the inner upper surface portion of the wheel, a brush is positioned in a direction orthogonal to the rim support portion, A third polishing section in which the polishing means is configured to polish the outer upper surface portion of the upper surface, and the brush is positioned in the longitudinal direction of the rim support portion to polish the outer upper surface portion of the wheel, And a fourth polishing section in which the polishing section is configured to mainly polish a portion where the rim support section and the rim meet. delete delete delete delete delete The method according to claim 1,
Wherein a plurality of the wheel transfer sections, the wheel fixing sections, and the polishing means are arranged side by side on the transfer path of the wheel so that different types of polishing operations can be sequentially performed. delete 8. The method of claim 7,
Wherein the brush is positioned in an oblique direction in the case of the wheel polishing means for polishing the inner corner portion of the wheel. 10. The method of claim 9,
Wherein the polishing means for polishing the inner edge and the inner upper surface of the wheel is located below the wheel and the polishing means for polishing the outer upper surface of the wheel is located above the wheel.

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