KR20100010791A - Grinding wheel for edge lcd panel - Google Patents

Grinding wheel for edge lcd panel Download PDF

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Publication number
KR20100010791A
KR20100010791A KR1020080071831A KR20080071831A KR20100010791A KR 20100010791 A KR20100010791 A KR 20100010791A KR 1020080071831 A KR1020080071831 A KR 1020080071831A KR 20080071831 A KR20080071831 A KR 20080071831A KR 20100010791 A KR20100010791 A KR 20100010791A
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KR
South Korea
Prior art keywords
coolant
cooling water
lcd panel
polishing
lubricant
Prior art date
Application number
KR1020080071831A
Other languages
Korean (ko)
Inventor
이병철
Original Assignee
주식회사 프로텍
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 주식회사 프로텍 filed Critical 주식회사 프로텍
Priority to KR1020080071831A priority Critical patent/KR20100010791A/en
Publication of KR20100010791A publication Critical patent/KR20100010791A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/02—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B57/00—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents
    • B24B57/02—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents for feeding of fluid, sprayed, pulverised, or liquefied grinding, polishing or lapping agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
    • B24B9/08—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
    • B24B9/10—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of plate glass

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

PURPOSE: A polishing wheel for an edge of a Liquid Crystal Display panel is provided to freely control the Revolution Per Minute of spins by cooling and lubricating a polishing surface. CONSTITUTION: A polishing wheel(100) for an edge of an LCD panel comprises a wheel body(110), grind stones(120), multiple coolant passages(130), a coupling bolt(140), and leakage preventing packings(150). The grind stones have strip stones(122,122a), a grind chip discharging groove, multiple coolant holes(128). Gullies(124) are formed between the strip stones. The coolant holes are formed between the gullies at equal intervals, and spray the coolant. The coolant passages are penetrated through shaft combining holes via a wheel body. A coolant supply passage(142) of the coupling bolt supplies the coolant to a coolant distributing hole(144). The leakage preventing packings prevent coolant leakage supplied to the coolant passage of the wheel body.

Description

Grinding wheel for edge LCD panel

The present invention relates to an LCD panel polishing surface, and more particularly, a structure that can be installed on one side of the LCD polishing surface of the LCD panel to spray coolant of pure water to the polishing wheel polishing the edge of the LCD panel. The present invention relates to a ground polishing wheel for the LCD panel, which is configured to spray coolant during the polishing of the edge of the LCD panel.

In general, as much attention has been paid to the increase in size and quality of display devices as a medium for transmitting image information, it is noted that various flat panel display devices have been developed and disseminated in place of CRT (Cathode Ray Tube), which has been used until now. same. It is well known that the liquid crystal display, which is one of the flat panel display devices, has been developed to a level higher than the CRT in terms of color of image quality.

The general manufacturing process of the general TFT-LCD panel (Thin Film Transistor Liquid Crystal Display Panel) constituting the liquid crystal display device as described above is as follows. First, as an overview, one pixel (comprising three subpixels R, G, and B) of a TFT-LCD panel is as fine as about 0.3 mm in width. Of course, the TFT (Thin Film Transistor) that fits in it is smaller. Furthermore, to reach a resolution of 1600 x 1200, the number of pixels is 1.19 million, which requires 3 times (R, G, B), considering each sub-pixel, and requires 576 million TFTs. Therefore, a semiconductor level process is required as a process that requires high precision of the entire process itself.

The TFT-LCD panel manufacturing process as described above is divided into a TFT process, a color filter (CF) process, a cell process, and a module process. The TFT (LCD) panel has two glasses that have undergone a TFT process and a CF process. One panel is made through the cell process, and the panel processed through the cell process is made through the module process, and one TFT-LCD panel that is actually used for a monitor or a TV is made.

On the other hand, after precisely bonding the TFT substrate and the CF substrate in the cell process of the TFT-LCD panel manufacturing process as described above, it is cut from the original plate to the LCD panel of a certain standard, from the original LCD panel of a certain standard When cutting with a grind evenly polished the side by removing protrusions or microcracks generated on the edge (edge) surface that is the cutting surface. At this time, the edge of the LCD panel is polished by the polishing wheel of the LCD panel polishing machine. When the edge of the LCD panel is polished, the coolant (or lubricant) spraying means is formed separately from the polishing wheel. LCD panel is sprayed on the polishing surface of the ground.

1 is a plan view showing a ground polishing wheel on the LCD panel according to the prior art, Figure 2 is a side cross-sectional view showing a ground polishing wheel on the LCD panel according to the prior art.

1 and 2 show the LCD panel edge grinding wheel 10 according to the prior art, the LCD panel edge grinding wheel 10 according to the prior art is a shaft coupling hole is formed through the center up and down A single line of abrasive stone is formed to be formed in the shape of a disk, but the wheel 12 is formed in the shape of a disc and a ring of concentric circles, and is fixed on the upper surface of the edge of the wheel 12 to polish the edge of the LCD panel. 14).

The polishing wheel 10 configured as described above is coupled to and fixed on each spindle shaft (not shown) configured above and below one side of the edge surface polishing apparatus of the LCD panel through a fixing bolt (not shown) to rotate the spindle shaft. By rotating by driving, the edge surface of the LCD panel which is seated on the polishing table and moved back and forth is polished.

However, the polishing wheel according to the related art configured as described above does not have a means for injecting coolant (or lubricant) onto the polishing surface between the edge surface of the LCD panel and the abrasive stone during the edge polishing operation of the LCD panel. Therefore, there is a limit in cooling on the polished surface. Therefore, there is a problem in that the grinding speed of the grinding wheel has a limit in the grinding speed of the LCD panel, and there is a limit in the RPM of the spindle.

In addition, since the polishing wheel according to the prior art has a structure in which the cooling water (or lubricant) is sprayed on the polishing surface from the outside, the cooling water (or lubricant) is not precisely sprayed on the polishing surface, so that the cooling or lubrication of the polishing surface is properly performed. It does not happen, such as a spark splashing occurs.

Therefore, the polishing wheel according to the prior art is impossible to rotate at high speed due to the RPM limit and the grinding speed limit of the spindle as described above, and cooling or lubrication is not performed properly on the polishing surface of the LCD panel surface during polishing. There is a problem of uneven polishing surface of the LCD panel.

Moreover, the abrasive stone of the polishing wheel according to the prior art as described above is made of a single line configuration has a weak disadvantage in impact. Therefore, breakage occurs frequently in the abrasive stone portion of the abrasive wheel, which makes it difficult to maintain the abrasive wheel, and thus there is a problem in that the cost of replacing the abrasive wheel is generated.

The present invention has been proposed to solve the problems of the prior art as described above, and constitutes a structure capable of spraying the coolant (or lubricant) of pure water on the polishing surface through the inside of the polishing wheel for polishing the edge of the LCD panel. By spraying the coolant (or lubricant) to the polishing surface of the edge surface through the polishing wheel during the polishing of the edge of the LCD panel, the surface of the LCD panel can be smoothly cooled and lubricated. Therefore, the object of the present invention is to provide a ground polishing wheel on the LCD panel that allows the polishing surface to be evenly polished through the high speed grinding speed.

Another object of the present invention is to construct a structure that can spray a coolant (or lubricant) to the polishing surface through the inside of the polishing wheel for polishing the edge surface of the LCD panel of the polishing surface to be polished between the surface of the LCD panel and the abrasive stone By smoothing cooling and lubrication, it enables high speed grinding speed to freely adjust the RPM of the spindle.

Another object of the present invention is to construct a structure that can directly spray the cooling water (or lubricant) to the polishing surface through the inside of the polishing wheel for polishing the edge surface of the LCD panel, the polishing between the surface and the abrasive stone of the LCD panel By smoothing the cooling and lubrication of the polishing surface, it is possible to prevent the sparking phenomenon during the polishing operation of the surface of the LCD panel.

In addition, the technology according to the present invention, in addition to the structure that can directly spray the coolant (or lubricant) of the pure water to the polishing surface through the inside of the polishing wheel for polishing the edge surface of the LCD panel, By making it more impact resistant, the cost of maintenance of the grinding wheel can be reduced by reducing the rate of breakage.

The present invention configured to achieve the above object is as follows. That is, the LCD panel edge grinding wheel of the present invention is installed on one side of the edge surface polishing apparatus of the LCD panel to polish the edge of the LCD panel in the edge grinding wheel of the LCD panel, the shaft coupling hole is formed through the front and rear through the center. A wheel body formed in a disc shape; Attached and fixed in the form of concentric rings on the front edge of the wheel body to polish the edges of the LCD panel. A dual-line polished stone having a plurality of coolant injection holes formed at equal intervals on the abrasive chip discharge grooves formed at alternating equidistant intervals on each of the bands and having a plurality of coolant injection holes for injecting coolant (or lubricant); A plurality of cooling water flow passages formed at equal intervals and extending through the wheel body from the rear end of each cooling water injection hole formed between the bands of large and small diameters and formed at equal intervals; Center the spindle shaft from a plurality of coolant distribution holes and coolant sources (or lubricant sources) radially formed on the outer periphery to supply coolant (or lubricant) to each of the inlets of the coolant flow path formed on the inner circumferential surface of the shaft coupling hole of the wheel body. A cooling water supply path for supplying the cooling water (or lubricant) supplied to the cooling water distribution hole is formed at the central portion in the longitudinal direction, and is inserted into the shaft coupling hole through the front of the wheel body to connect the wheel body with the spindle shaft. Coupling bolts for fixing and fixing; And a leakage preventing packing for preventing leakage of the coolant (or lubricant) supplied from the cooling water distribution hole of the coupling bolt to the cooling water flow path of the wheel body when the wheel body is fixedly coupled to the spindle shaft through the coupling bolt.

In the configuration of the present invention as described above, the spindle shaft is penetrated in the longitudinal direction of the center of the nut portion is formed in the first half of the inner diameter screwed with the coupling bolt; A coolant storage part formed in a predetermined space on the rear half of the nut part to store a coolant (or lubricant) supplied from a coolant source (or a lubricant source); And a nipple coupled to the rear end of the spindle shaft via a bearing to supply the coolant (or lubricant) supplied from the coolant source (or the lubricant source) to the coolant reservoir.

In addition to the configuration of the present invention as described above may be further provided with a nipple coupled to the rear end of the spindle shaft through the bearing to supply the coolant (or lubricant) supplied from the coolant source (or lubricant source) to the coolant reservoir of the spindle shaft.

On the other hand, in the above-described configuration, a band groove of a predetermined depth is formed on a line connecting the cooling water distribution holes formed at radial equal intervals on the coupling bolts to couple with the inlet of the cooling water flow path located on the shaft coupling hole of the wheel body. Even if the cooling water distribution holes on the bolt do not match, the cooling water (or lubricant) may be configured to be smoothly supplied to the inlet of the cooling water flow path through the band groove.

According to the technology of the present invention, by forming a structure that can spray the coolant (or lubricant) of the pure water to the polishing surface through the inside of the polishing wheel for polishing the edge of the LCD panel, the cooling water (or lubricant) during the polishing operation of the edge of the LCD panel ) Can be sprayed on the polished surface of the edge surface by the polishing wheel to smooth the cooling and lubrication of the polished surface between the LCD panel edge and the polished stone to smoothly polish the polished surface through high speed grinding speed. Possible effects are expressed.

Another effect of the present invention comprises a structure that can spray the coolant (or lubricant) to the polishing surface through the inside of the polishing wheel for polishing the edge surface of the LCD panel, the polishing surface to be polished between the LCD panel and the ground stone By smoothly cooling and lubricating, it enables high speed grinding speed and the spindle RPM can be freely adjusted.

Another effect of the present invention is to construct a structure that can directly spray the coolant (or lubricant) to the polishing surface through the inside of the polishing wheel for polishing the edge surface of the LCD panel, the polishing between the surface of the LCD panel and the abrasive stone By smoothing the cooling and lubrication of the polished surface, the sparking phenomenon can be prevented during polishing of the LCD panel surface.

In addition, the technology according to the present invention, in addition to the structure that can directly spray the coolant (or lubricant) of the pure water to the polishing surface through the inside of the polishing wheel for polishing the edge surface of the LCD panel, By making them more resistant to impact, the cost of maintaining the grinding wheel can be reduced by reducing the rate of breakage.

Hereinafter, an LCD polishing surface of an LCD panel according to an exemplary embodiment of the present invention will be described in detail.

Figure 3 is a perspective view showing the ground polishing wheel in the LCD panel according to the present invention, Figure 4 is a front view showing the ground polishing wheel in the LCD panel according to the invention, Figure 5 shows the ground polishing wheel in the LCD panel according to the invention Side cross-sectional view, Figure 6 is a side cross-sectional view showing a state in which the ground polishing wheel is coupled on the spindle axis of the LCD panel according to the present invention.

As shown in FIGS. 3 to 6, the LCD panel edge grinding wheel 100 according to the present invention has a disk-shaped wheel body 110 and a wheel body 110 having a axial coupling hole 112 formed therein. Attached to and fixed in the form of a concentric ring on the front edge of the edge of the LCD panel to form a diamond line (122, 122a) of the dual-line structure to form a grinding stone 120, between the ribs (124, 122a) A radial coolant flow path 130 and an inner circumferential surface coolant flow path extending from the rear end of each of the formed coolant injection holes 128 to extend through the body of the wheel body 110 through the inner shaft coupling hole 112. Supplying the cooling water from the plurality of cooling water distribution holes 144 and the cooling water supply source (or lubricant supply: not shown) to the cooling water distribution hole 144 so as to supply cooling water (or lubricant) to each of the inlets of the 130. Cooling water supply path 142 is provided wheel body Leakage of the coolant between the coupling bolt 140 and the inlet of the coolant flow path 130 on the shaft coupling hole 112 and the coolant distribution hole 142 on the coupling bolt 140 to secure the 110 to the spindle shaft 200. It consists of a configuration of the leakage preventing packing 150 to prevent.

LCD panel ground polishing wheel 100 according to the present invention configured as described above is rotated by the drive of the spindle shaft 200 in the state coupled through the coupling bolt 140 to the end of the spindle shaft 200 LCD Cooling and lubrication are performed on the surface of the LCD panel by spraying the cooling water supplied through the spindle shaft 200 to the surface of the LCD panel.

On the other hand, as described above, look at the supply path of the cooling water for injecting the cooling water on the polishing surface of the LCD panel surface through the LCD panel polishing surface 100 according to the present invention. First, when the polishing wheel 100 is rotated by the drive of the spindle shaft 200 to polish the surface of the LCD panel, the coolant supplied from the coolant supply source (not shown) is transferred through the nipple 300 to be described later. The cooling water supplied to the cooling water supply path 142 of the coupling bolt 140 via the 200, and the cooling water supplied to the cooling water supply path 142 is distributed through the cooling water distribution hole 144 to couple the shaft of the wheel body 110. The coolant flowed into the inlet of the coolant flow path 130 on the side of the ball 112 and the coolant flowed into the inlet of the coolant flow path on the side of the axial coupling hole 112 passes through the respective coolant flow paths 130. It is injected to the polishing surface of the LCD panel through the cooling water injection hole 128 of the golgol 124 formed between the band stones (122, 122a).

As described above, the cooling water (or lubricant) of the pure water is injected into the polishing surface of the LCD panel through the cooling water injection hole 128 of the golgol 124 formed between the band stones 122 and 122a of the abrasive stone 120. The polishing wheel 100 of the present invention cools and lubricates the polishing surface of the LCD panel surface to enable high-speed grinding speed so that the polishing surface of the LCD panel surface can be evenly polished.

In addition, the polishing wheel 100 according to the present invention is a coolant jet hole 128 of the golgol 124 formed between the band stones 122 and 122a of the abrasive stone 120 during the polishing operation of the LCD panel edge surface as described above By spraying the coolant (or lubricant) of pure water to the polishing surface of the LCD panel surface through the surface, the polishing surface of the LCD panel surface is evenly polished by enabling high speed grinding speed by cooling and lubricating the polishing surface smoothly. Of course, it is possible to freely adjust the RPM of the spindle shaft 200, to prevent the sparking of the polishing surface, the impact of the band stones (122, 122a) of the abrasive stone 120 in a dual line structure By making it stronger, the cost of maintaining the polishing wheel 100 can be reduced by reducing the rate of breakage.

The configuration of the LCD panel polishing surface 100 according to the present invention in more detail as follows. First, the wheel body 110 is to form the outer shape of the polishing wheel 100 according to the present invention, the wheel body 110 is shown in Figure 3 to Figure 6 coupling bolt 140 to be described later in the center thereof The shaft coupling hole 112 for coupling the polishing wheel 100 to the spindle shaft 200 through the coupling with the spindle shaft 200 is inserted through the back and forth. At this time, the wheel body 110 is formed in a concentric shape of the disk shape.

Meanwhile, as illustrated in FIGS. 5 and 6, the wheel body 110 configured as described above has an axial coupling hole 112 into which the coupling bolt 140 is inserted and coupled thereto, and at the center of the front surface. A bolt seating portion 114 for seating the coupling bolt 140 is formed at the front end of the shaft coupling hole 112, and the front end of the spindle shaft 200 to be described later is seated at the rear end of the shaft coupling hole 112 at the rear center. The spindle shaft seating portion 116 is formed.

The wheel body 110 configured as described above is the spindle shaft through the screw coupling between the coupling bolt 140 is inserted through the front end of the shaft coupling hole 112 and the spindle shaft 200 of the rear end of the wheel body 110 It is coupled to and supported on 200. At this time, when the wheel body 110 is fixed to the front end of the spindle shaft 200 by screwing the coupling bolt 140 and the spindle shaft 200, the ends of the coupling bolt 140 and the spindle shaft 200 are respectively wheels. The bolt mounting portion 114 of the front end of the body 110 and the spindle shaft seating portion 116 of the rear end are mounted.

Abrasive stone 120 is for polishing the surface of the LCD panel, the abrasive stone 120 is fixed to the concentric circular upper surface of the wheel body 110 in a concentric ring attached. At this time, the abrasive stone 120 is formed in the outer and outer bands of the small and medium diameter band (122, 122a) in a concentric ring in the inner and outer intervals between the interval rib 124, respectively, while the small and small diameter band stones (122, 122a), respectively Dual-line structure having a plurality of coolant injection holes 128 formed at equal intervals on the polishing chip discharge grooves 126 and the inter-corrugated grooves 124 which are formed at evenly spaced intervals at the same time and inject coolant therethrough Is made of.

That is, in the configuration of the abrasive wheel 100 according to the present invention, the abrasive stone 120 has a dual-diameter band of diamonds 122 and 122a having a concentric circle in and out with the inter-corrugated bone 124 at a predetermined interval therebetween. Line structure. At this time, the abrasive stone 120 of the dual-line structure is a band structure 122, 122a is a structure made of an integral but spaced apart a predetermined interval between the inter-golgol 124.

As shown in FIG. 3 and FIG. 4, the abrasive stone 120 configured as described above has a large and small diameter so as to discharge the polishing chips of the LCD panel generated when the LCD panel is ground by the polishing wheel 100 to the outside. Polishing chip discharge grooves 126 are formed at alternating equidistant intervals in each of the bands 122 and 122a, and are formed through the back and forth on the inter-corrugs 124 between the bands 122 and 122a of large and small diameters. Cooling water injection holes 128 through which the cooling water (or lubricant) supplied through the cooling water flow path 130 are sprayed are formed at equal intervals.

The coolant flow path 130 is configured to guide the coolant (or lubricant) supplied from the coolant supply source (or the lubricant supply source) through the spindle shaft 200 and the coupling bolt 14 to the coolant injection hole 128 of the abrasive stone 120. The coolant flow path 130 is formed from the rear of the wheel body from the rear end of each coolant jet hole 128 formed in the rib 124 between the large-diameter bands 122 and 122a, as shown in FIGS. 5 and 6. It is formed to extend through the axial coupling hole 112 through the 110.

The coolant flow path 130 configured as described above is wheeled from the rear end of each coolant jet hole 128 formed in the ridge between the large diameter diaphragm 122 and 122a as shown in FIGS. 5 and 6. It passes through the inner surface of the shaft coupling hole 112 of the wheel body 110 via the inside of the body 110. At this time, the cooling water flow path 130 is formed at radial equal intervals. In the present invention, the diamond chips 122 and 122a having large and small diameters are formed at equal intervals between the polishing chip discharge grooves 126 formed at alternating equal intervals.

Coupling bolt 140 is for fixing the wheel body 110 to the front end of the spindle shaft 200, the coupling bolt 140 is a coolant formed on the inner peripheral surface of the shaft coupling hole 112 of the wheel body 110 Centering the spindle shaft 200 from the plurality of coolant distribution holes 144 and the coolant source (or lubricant source) radially formed on the outer circumference so as to supply coolant (or lubricant) to each of the inlets of the flow path 130. The cooling water supply path 142 for supplying the cooling water (or lubricant) supplied via the cooling water distribution hole 144 is formed in a central portion in the longitudinal direction. At this time, the thread is formed on the outer periphery of the coupling bolt 140, of course.

In the configuration of the coupling bolt 140 configured as described above, the cooling water supply passage 142 is formed to a predetermined depth from the center of the coupling end of the coupling bolt 140, the cooling water distribution hole 144 of the cooling water supply passage 142 It penetrates toward the outer circumferential direction at radial equal intervals from a predetermined depth end. At this time, the angle between the coolant distribution holes 144 is equal to the angle formed by the inlet of the coolant flow path 130 formed on the inner diameter of the shaft coupling hole 112 of the wheel body 110.

On the other hand, in the configuration of the coupling bolt 140 as described above on the line connecting the cooling water distribution holes 144 formed at equal intervals radially on the coupling bolt 140, as shown in FIG. 146 is formed in the strip groove 146 even if the inlet of the coolant flow path 130 located on the shaft coupling hole 112 of the wheel body 110 and the coolant distribution hole 144 on the coupling bolt 140 do not match. By matching the inlet of the cooling water flow path 130, it is possible to smoothly supply the cooling water (or lubricant).

The leakage preventing packing 150 of the wheel body 110 from the cooling water distribution hole 144 of the coupling bolt 140 when the wheel body 110 is fixed to the spindle shaft 200 through the coupling bolt 140. This is to prevent the leakage of the cooling water (or lubricant) supplied to the cooling water flow path 130, the leakage preventing packing 150 is coupled to the coupling bolt 140 on the outer periphery of the coupling bolt 140 before and after the cooling water distribution hole (144) When the wheel body 110 is fixedly coupled to the front end of the spindle shaft 200 through the 140, the cooling water (or the front and rear of the coupling state between the band groove 146 of the coupling bolt 140 and the front end of the cooling water flow path 130) is packed. Lubricant) to prevent leakage.

The spindle shaft 200 according to the present invention is to allow the rotation of the polishing wheel 100 through the driving by coupling the polishing wheel 100 to the front end thereof, the spindle shaft 200 of the center Penetrated in the longitudinal direction, but formed in the first half of the inner diameter is formed in a predetermined space on the nut portion 210, the nut portion 210 is screwed to the coupling bolt 140, the nut portion 210 is supplied from the cooling water source (or lubricant source) The coolant (or lubricant) supplied to the coolant reservoir 220 and the rear end of the spindle shaft 200 through the bearing 310 to temporarily store the coolant (or lubricant) supplied from the coolant source (or lubricant source) is supplied to the coolant. It is made of a configuration of the nipple 300 to supply to the storage unit 220.

The spindle shaft 200 configured as described above rotates the polishing wheel 100 through the rotation of the spindle shaft 200 according to the driving of the LCD panel ground polishing apparatus so that the surface of the LCD panel is ground. At this time, the rotational speed of the polishing wheel 100 is the same as the rotational speed of the spindle shaft 200 because the polishing wheel 100 is fixed to the spindle shaft 200.

On the other hand, in the configuration according to the present invention coupled to the rear end of the spindle shaft 200 through the bearing 310, the cooling water (or lubricant) supplied from the cooling water supply source (or lubricant supply source) coolant storage unit of the spindle shaft 200 ( A nipple 300 is provided to supply 220. The nipple 300 is a stationary body that does not rotate, and is connected to the rear end of the spindle shaft 200 through the bearing 310, so that the spindle shaft 200 has no effect on the rotation.

As described above, when the rear end of the spindle shaft 200 and the tip of the nipple 300 are connected to the bearing 310 to enable the rotation of the spindle shaft 200, the friction and rolling resistance of the bearing 310 are reduced. Ceramic bearings employ ceramic balls that consume less energy to speed up rotation and maintain speed.

As described above, the LCD panel edge grinding wheel 100 according to the present invention applies the abrasive stone 120 having a dual line structure as described above, and also supplies coolant (or lubricant) to the inside of the wheel body 110. Through the configuration of the cooling water flow path, the cooling surface (or lubricant) is sprayed onto the polishing surface during the polishing operation of the LCD panel surface, so that the polishing surface can be smoothly polished by smoothing or lubricating the polishing surface.

In addition, by spraying the coolant (or lubricant) to the polishing surface during the polishing operation of the LCD panel surface, the RPM of the spindle shaft 200 can be freely adjusted by allowing the cooling or lubrication of the polishing surface to be smooth. Sparks of the surface can be prevented from splashing, and the cost of maintaining the polishing wheel 100 can be reduced.

The present invention is not limited to the above embodiments, and various modifications can be made within the scope of the technical idea of the present invention.

1 is a front view showing a polishing wheel on the LCD panel according to the prior art.

Figure 2 is a side cross-sectional view showing a polishing wheel on the LCD panel according to the prior art.

Figure 3 is a perspective view showing a ground polishing wheel on the LCD panel according to the present invention.

Figure 4 is a front view showing a polishing wheel on the LCD panel according to the present invention.

Figure 5 is a side cross-sectional view showing a polishing wheel on the LCD panel according to the present invention.

Figure 6 is a side cross-sectional view showing a state coupled to the polishing surface on the spindle axis of the LCD panel according to the present invention.

[Description of Symbols for Main Parts of Drawing]

100. Polishing wheel 110. Wheel body

120. Abrasive stone 122, 122a. Bandstone

124. Saigol 126. Polishing chip discharge groove

128. Coolant jet hole 130. Coolant flow path

140. Coupling bolt 150. Leakage prevention packing

200. Spindle Shaft 300. Nipple

310. Bearing

Claims (4)

In the LCD panel surface polishing wheel which is installed on one side of the LCD panel polishing apparatus for polishing the edge of the LCD panel, Axial coupling hole is formed through the front and rear in the center of the wheel body formed in a disk shape; Attached and fixed in the form of a concentric ring on the front edge of the wheel body to polish the edge surface of the LCD panel, but a band of large and small diameters protrude in the form of a ring on the concentric circle with inter-intervals of a predetermined distance therebetween. Dual-line polished stone with abrasive chips discharge grooves formed at alternating equidistant intervals in each of the bands of diameter and through a plurality of coolant injection holes formed at equal intervals on the ribs to inject coolant (or lubricant) ; A plurality of cooling water flow passages formed at equal intervals and extending through the body of the wheel body from the rear end of each cooling water injection hole formed between the bands of the large and small diameters and formed at equal intervals; Via a spindle axis from a plurality of cooling water distribution holes and cooling water sources (or lubricant sources) radially formed on the outer periphery so as to supply cooling water (or lubricant) to each of the inlets of the cooling water flow path formed on the inner circumferential surface of the shaft coupling hole. A cooling water supply path for supplying the supplied cooling water (or lubricant) to the cooling water distribution hole is formed at the central portion in the longitudinal direction, and is inserted into the shaft coupling hole through the front of the wheel body and screwed with the spindle shaft. Coupling bolt for fixing and fixing the wheel body; And When the wheel body is coupled to the spindle shaft through the coupling bolt fixed leakage packing to prevent leakage of the cooling water (or lubricant) supplied to the cooling water flow path of the wheel body from the cooling water distribution hole of the coupling bolt The ground polishing wheel, characterized in that the LCD panel. According to claim 1, wherein the spindle shaft is penetrated in the longitudinal direction of the center of the nut portion formed in the first half of the inner diameter is screwed with the coupling bolt; And And a coolant storage unit which is formed in a predetermined space on the rear half of the nut unit and stores the coolant (or lubricant) supplied from a coolant source (or a lubricant source). The LCD of claim 2, further comprising a nipple coupled to a rear end of the spindle shaft through a bearing to supply coolant (or lubricant) supplied from a coolant source (or a lubricant source) to the coolant storage unit of the spindle shaft. Ground polishing wheel on panel. According to any one of claims 1 to 3, A belt groove of a predetermined depth is formed on the line connecting the cooling water distribution holes formed at radial equal intervals on the coupling bolt is located on the shaft coupling hole of the wheel body And a cooling water (or lubricant) supply to the inlet of the cooling water channel through the band groove even if the inlet of the cooling water channel is not matched with the cooling water distribution hole on the coupling bolt.
KR1020080071831A 2008-07-23 2008-07-23 Grinding wheel for edge lcd panel KR20100010791A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200472834Y1 (en) * 2012-09-18 2014-05-27 현대중공업 주식회사 Gun with multi function
CN103962911A (en) * 2014-04-16 2014-08-06 佘峰 Polishing device of refrigerator rollers
CN105479284A (en) * 2015-12-31 2016-04-13 宁波其锐达机械有限公司 Vertical end face grinding machine
CN105563318A (en) * 2015-12-28 2016-05-11 宁波鑫晟工具有限公司 Polishing machine with automatic heat dissipation function
KR101964357B1 (en) * 2017-09-29 2019-04-01 현대트랜시스 주식회사 Integrated sleeve assembled to rear cover of automatic transmission and assembling method thereof
CN111922856A (en) * 2020-08-06 2020-11-13 泉州市海恩德机电科技发展有限公司 Multi-grinding head device with circumferential water supply mechanism
WO2020258347A1 (en) * 2019-06-25 2020-12-30 苏州迈卡孚工业科技有限公司 Industrial tool for punching and polishing

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200472834Y1 (en) * 2012-09-18 2014-05-27 현대중공업 주식회사 Gun with multi function
CN103962911A (en) * 2014-04-16 2014-08-06 佘峰 Polishing device of refrigerator rollers
CN105563318A (en) * 2015-12-28 2016-05-11 宁波鑫晟工具有限公司 Polishing machine with automatic heat dissipation function
CN105479284A (en) * 2015-12-31 2016-04-13 宁波其锐达机械有限公司 Vertical end face grinding machine
KR101964357B1 (en) * 2017-09-29 2019-04-01 현대트랜시스 주식회사 Integrated sleeve assembled to rear cover of automatic transmission and assembling method thereof
WO2020258347A1 (en) * 2019-06-25 2020-12-30 苏州迈卡孚工业科技有限公司 Industrial tool for punching and polishing
CN111922856A (en) * 2020-08-06 2020-11-13 泉州市海恩德机电科技发展有限公司 Multi-grinding head device with circumferential water supply mechanism

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