KR100506874B1 - A PCD Temp Cutter And Processing Method - Google Patents

Abstract

The present invention provides a PCD tamper cutter and a method for forming an edge surface on both sides of the scribe edge to be formed in the center to form a diamond cone cutting wheel by integrally forming a triangular cone-shaped conical surface on the outside of each edge surface In this regard, the outer diameter of the scribe edge can be reduced to increase the pressure per unit area of the edge portion delivered to the workpiece so that a deeper vertical crack can be obtained when the same cutting force is applied. Deep vertical cracks can be easily formed at a low pressure while minimizing the cracks, and can be completely separated without cutting the continuous discontinuity (chipping) when cutting the workpiece, especially the cone formed on both sides Of the shaft is fastened by the holder It can prevent the shaking of the tool, and can greatly improve the service life of the tool. In addition, when machining the diamond cone cutting wheel, the cutting edge is polished by the grinding wheel and the center is the discharge electrode. EDG processing is carried out by wheels, so the concentricity and dimensional tolerances can be precise, work and productivity can be improved, and processing can be carried out while maintaining optimal conditions for each raw material.

Description

PDF TAMP CUTTER AND MANUFACTURING METHOD THEREOF {A PCD Temp Cutter And Processing Method}

The present invention is mainly mounted on the cutting machine of the bundle holder for TEMP CUTTER to cut easily various cutting objects made of non-metallic materials such as glass (GLASS) and TFT-LCD to cut (CUTTING) The present invention relates to a PCD stamp cutter used to generate scribe brain and a processing method thereof.

In more detail, in forming the cutting wheel to be mounted on the bundle holder for the TEMP CUTTER, the inclined surface is formed on both sides of the scribe edge to be formed in the center, but the conical surface is formed integrally on the outside of each inclined surface to form the cutting wheel It is formed by the shape of a cone.

5 is an exemplary view showing a non-metal cutting machine 25 to be used in a portable.

The non-metal cutting machine 25 rotates the cutting wheel 27 mounted at the lower end of the head 26 at a predetermined speed by a power means installed inside the main body (holding part), and cuts such as plate glass and TFT-LCD. It is used to mold straight or curved scribe brines on the surface.

The conventional cutting wheel 27 to be mounted and used in the non-metal cutting machine 25 as described above was used by mounting a disc-shaped cutting wheel 1 as illustrated in FIGS. 1A and 1B.

In the conventional disc-shaped cutting wheel 1 illustrated in FIGS. 1A and 1B, the wheel is formed in a disc shape, but a scribe brine 3 is formed on the centerline of the outer circumference, and the outside of the scribe line 3 is formed on both sides. An edge surface 2 inclined downward is formed, and although not specifically illustrated on the scribe edge 3, cutting grooves of a constant size are formed at equal intervals, and are mounted in the center of the disc so as to be easily compressed. The ball 4 is through.

The conventional disc-shaped cutting wheel 1 thus formed is mounted using a DC PIN (PCD Shaft Type) fastened to the inner diameter of the tool to rotate and pressurize the tool, and is mounted using the tool or the fastening pin as described above. Compared with the use of cemented carbide tools, the tool can prolong the service life of the tool and exhibits performance characteristics satisfying the requirements for performing scribing.

However, when machining, the current machining method does not solve the problem of contact wear caused by shaft friction, which is the largest cause of edge life, and considering the size of the tool inner diameter and the pressure applied, the edge of the tool In order to reduce the size of the outer diameter, there was a limit.In order to avoid this material, liquid and solid lubrication were basically excluded and used without lubrication, which greatly shortened the life of the tool due to axial friction and caused the shaking of the tool due to the wear of the shaft. There was a problem that the phenomenon occurred.

In particular, the existing internal fastening method has a constraint that the outer diameter (D) of the tool to maintain more than 1.5mm due to the constraint of the water meter.

An object of the present invention is to provide an improved PCD Temp Cutter and a processing method thereof to solve the above problems.

According to the present invention, an edge surface is formed on both sides of a scribe edge formed at the center, but a conical surface having a triangular cone shape is formed integrally on the outer side of each edge surface to form a cutting wheel in a diamond cone shape. ), But its purpose is to provide

The present invention is vacuum welding a cylindrical raw material (PCD) to the cemented carbide secondary shank, and fixed by the cemented carbide secondary shank to the chuck is rotated by the rotating means, the raw material of the cemented carbide shank is rotated by the rotating means And a step of sequentially processing the center portion and the edge inclined portion by a rotating wheel or a discharge electrode wheel rotated while being operated by a linear reciprocating motion and a constant polishing angle or discharge angle. The purpose is to provide.

Another object of the present invention is to minimize the horizontal crack of the workpiece during scribing, and to form a deep vertical crack with low pressure so that no continuous discontinuity (chipping) occurs when cutting the workpiece. PCD tamper cutter (PCD Temp) to increase the pressure per unit area of the edge portion delivered to the workpiece so that the outer diameter of the scribe edge can be reduced and the deeper vertical crack can be obtained when the same cutting force is applied. To provide a cutter.

Another object of the present invention is to be able to fasten the conical cones formed on both sides by the holder to prevent the shaking of the tool while preventing the wear of the shaft, and to smoothly rotate the tool It is to provide PCD Temp Cutter which can greatly improve the service life.

Another object of the present invention is that when the edge inclined portion and the center portion, the edge portion is polished by the grinding wheel and the center portion is subjected to EDG processing by the electrode wheel for discharging, precisely processing concentricity, angle and dimensional tolerance The present invention provides a method of manufacturing a PCD Temp Cutter, which enables to improve work and productivity, and can be processed in an optimal state for each raw material.

The above and other objects of the present invention,

Diamond conical cutting wheels formed by forming edge surfaces 14 on both sides of the scribe edge 15 formed at the center, and conically forming triangular cone-shaped conical surfaces 11 on the outside of each edge surface 14. In (10), in the shaft support center 12, the center support angle θ1 of the conical surface 11 is 60 to 130 degrees, and the edge edge angle θ2 formed by both edge surfaces 14 is 80 to 80 degrees. 120 degrees, the length L1 of both ends of the shaft support center 12 is 2.0-18 mm, the cutting edge width L2 of the length of both edge surfaces 2 is 0.3-6.0 mm, and the scribe edge 15 The outer diameter (D1) of the circumference of the circumference of D1 is achieved by the PCB tampe cutter, characterized in that 1.0 ~ 5.0mm.

Other above and other objects of the present invention,

Vacuum welding the cylindrical material 16 to the cemented carbide shank 17; fixing the cemented carbide shank 17 to which the cylindrical material 16 is vacuum welded to the chuck 18 to rotate by the rotating means; , The cylindrical raw material 16 of the cemented carbide auxiliary shank 17 rotated by the rotating means to the polishing wheel or the discharge electrode wheel 20 which is operated and rotated by the rotational and linear reciprocating motion and the constant polishing angle or discharge angle. Is achieved by a method of manufacturing a PCD Temp Cutter, which consists of a step of sequentially processing the conical surface 11 and the edge surface 14.

The above and other objects and features of the present invention will be more clearly understood by the following detailed description based on the accompanying drawings.

2a to 4 show a concrete implementation of the diamond cone-shaped cutting wheel 10 and the scribing process according to the present invention, Figures 2a and 2b is a diamond cone cutting wheel 10 according to the present invention 3A and 3B are exemplified views showing a processing process of the diamond cone cutting wheel 10 according to the present invention, and FIG. 4 is a holder bundle of the diamond cone cutting wheel 10 according to the present invention. An illustration showing the state attached to the.

Diamond conical cutting wheel 10 according to the present invention, as illustrated in Figures 2a and 2b, forming the edge surface 14 on both sides of the scribe edge 15 formed in the center of each edge surface 14 Conical surface 11 having a triangular cone shape on the outside was formed integrally to form a cutting wheel in a diamond cone shape.

The diamond cone-shaped cutting wheel 10 formed as described above was manufactured by a process as illustrated in FIGS. 3A and 3B, and the manufacturing process is a process of vacuum welding the cylindrical raw material 16 to the cemented carbide auxiliary shank 17. , The cylindrical auxiliary raw material 16 is vacuum welded to the cemented carbide shank 17 fixed to the chuck 18 and rotated by the rotating means, the cylindrical auxiliary shank 17 of the cylindrical auxiliary shank 17 rotated by the rotating means ( 16) in order to process the conical surface 11 and the edge surface 14 in turn by a polishing wheel or an electrode wheel 20 for discharge and is operated and rotated in a linear and reciprocating motion and a constant polishing and discharge angle.

In the process of vacuum welding the cylindrical raw material 16 to the cemented carbide support shank 17, the outer diameter D2 of the raw material is 1.5 to 12 mm and the length L3 of the raw material is 3.0 to the cemented carbide support shank 17. The cylindrical raw material 16 having a diameter of ˜22 mm is welded integrally by a conventional vacuum welding method.

The step of fixing the cemented carbide-assisted shank 17 to which the cylindrical raw material 16 is vacuum-welded to the chuck 18 and rotating by the rotating means includes the cemented carbide-assisted shank 17 to which the cylindrical raw material 16 is vacuum-welded. While holding firmly with a conventional chuck (CHUCK) using pneumatic or hydraulic pressure, while maintaining the concentricity with respect to the central axis of the cemented carbide shank 17, the chuck 18 held by the cemented carbide shank 17 is maintained. Mounted on a conventional rotating means (not specifically shown), the cylindrical raw material 16 together with the chuck 18 by the rotating means rotates the cemented carbide shank (17).

The cylindrical raw material 16 that is rotated at a predetermined speed by the rotating means as described above uses a polishing wheel or a discharge electrode wheel 20 which is rotated by the rotating means and linearly reciprocates with a constant polishing angle and discharge angle. Work is done in the order of distal machining of the other end of the cemented carbide subsidiary shank (11), machining of the edge surface (14) using the electrode wheel and polishing wheel, and discharge machining of the cemented carbide side (11) of the cemented carbide secondary shank. By conical surface discharge processing, the present invention and the cemented carbide auxiliary shank are naturally separated.

In order to generate the scribe edge 15, the abrasive removal part 13 was polished and removed to form the edge surface 14 by the polishing wheel 20. Previously, the EDG electrode wheel was processed (roughing). The edge width L2, which is the length of both edge edges 2 formed on both sides of the scribe edge 15, was maintained at 0.3 to 6.0 mm, and the edge erase edges 13 were removed. 14), that is, the edge of the edge of the edge of the edge portion θ1 was maintained at 80 to 140, and the outer diameter D1 of the circumference of the scribe edge 15 from which the soft erase rejection 13 was removed was 1.0 to 5.0 mm. It is desirable to maintain.

In addition, the polishing wheel or the discharge electrode wheel 20 for polishing the edge surface 14, which is the edge portion, is a grinding wheel, that is, a cup made of DIA MESH 600 to 3000 designed for each type of raw material, concentration of 100 to 150 ( Grinding should be done using the VITRIFIED WHEEL of the CUP) shape. It is preferable to maintain the center support angle θ2 at the shaft support center 12 at 60 to 130, and the length L1 of both ends of the shaft support center 12, that is, the diamond cone cutting wheel 10, is 2.0. It is desirable to keep it at ~ 18mm.

Diamond cone cutting wheel 10 according to the present invention will be more clearly understood by the following embodiments.

Example

The cylindrical raw material 16 having the outer diameter D2 and the length L3 of 3.0 mm and 3.6 mm, respectively, was integrally welded to the cemented carbide auxiliary shank 17 by a conventional vacuum welding method before processing.

Mounting and fixing the cemented carbide auxiliary shank 17, in which the cylindrical raw material 16 is vacuum-welded, to the hydraulically operated chuck 18, which is rotated by the rotating means, and having a constant grinding angle and discharge angle, grinding to perform a linear transfer motion. The wheel or discharge electrode wheel 20 is mounted, and in processing the conical surface 11 and the edge surface 14, the conical surface 11 is discharge-processed by the EDG electrode wheel which is the electrode wheel, and the scribe edge 15 of The edge surface 14 was to be polished with a bitley wheel.

In the state where the cylindrical raw material 16 is rotated by the rotating means together with the cemented carbide auxiliary shank 17 fixed to the chuck 18, discharge and polishing are performed using a polishing wheel or an electrode wheel 20 for discharge. However, the outer diameter D1 of the circumferential edge portion of the scribe edge 15 was formed to be 2,5 mm, and the edge width L2 of the length of both edge surfaces 14 was 0.57 mm, and the shaft support center 12 was formed. ), The center support angle θ2 of the conical surface 11 was maintained at an angle of 100.

 After completely forming the edge surface 14 so that the scribe edge 15 is maintained on the center line, the grinding wheel or the electrode wheel 20 for discharge (20: DIA MESH 1500 and cup-shaped VITRIFIED WHEEL having a concentration of 120) is removed. The conical surfaces 11 on both sides were polished and molded, and the length L1 of both ends of the shaft support center 12 was maintained at 2.42 mm, and the cutting edge angle θ1 formed by both edge surfaces 14 was 125 degrees. It was maintained to complete the diamond cone cutting wheel (10).

As shown in FIG. 4, the diamond cone-shaped cutting wheel 10 formed as described above is a non-metal cutting machine for screwing a space adjusting bolt (not specifically shown) into the fastening groove 22 using the cutting wheel holder 23. (25) was attached to the holder bundle (21).

As described above, the diamond cone-shaped cutting wheel 10 was mounted on the holder bundle 21 of the non-metal cutting machine 25, and then scribed to the to-be-deleted 24.

In the state where the erased 24 having a thickness of 0.7 mm is vacuum-adsorbed with a vacuum absorber (not specifically shown), the cutting force is maintained in the range of 6 to 30 m / min according to the specific outer diameter of the edge part, and the load of the scribing load is It is preferable to perform the scribing operation while maintaining the range in the range of 1.0 to 20 kgf. In this embodiment, the scribing operation is performed while maintaining the load at 3.0 kgf and maintaining the cutting force (scribing speed) at 300 mm / sec. SCRIBING).

As a result of scribing, the vertical cutting depth (1) of the axial fastening type disc-shaped cutting wheel (1) maintained at the same outer diameter was maintained at more than twice the depth, and no horizontal cracking occurred. It could be cut easily to separate, it was confirmed that the tool life can be maintained longer than 10 times.

As described above, the PCB stamp cutter manufactured by the manufacturing method according to the present invention forms an edge surface on both sides of the scribe edge formed at the center, but forms a conical surface having a triangular cone shape on the outside of each edge surface as an integral body. Since it is formed by a diamond cone cutting wheel, the scribe edge can be made smaller so that the pressure per unit area of the edge portion delivered to the workpiece can be increased to obtain a deeper vertical crack when the same cutting force is applied. It can easily form deep vertical cracks at low pressure while minimizing the horizontal crack of the workpiece, and can be completely separated without cutting the continuous discontinuity (chipping) when cutting the workpiece. In particular, fasten conical cones formed on both sides by holders. It is possible to prevent the shaft from abrasion, to prevent the shaking of the tool, to greatly improve the life of the tool, as well as to process the cutting edge by grinding wheels when machining the diamond cone cutting wheel. Since the center part performs EDG processing by the electrode wheel for discharging, the concentricity, angle, and dimensional tolerance can be precise, work and productivity can be improved, and it can be processed while maintaining the optimum state for each raw material.

1a and 1b is a front view and a side view showing a conventional disk-shaped cutting wheel.

2a and 2b is a front view and a side view showing a diamond cone cutting wheel according to the present invention.

3a and 3b is an exemplary view showing a processing step of the diamond cone-shaped cutting wheel according to the present invention.

4 is an exemplary view showing a state in which the diamond cone cutting wheel according to the present invention is mounted on the holder bundle.

5 is an exemplary view showing a portable glass cutter that is commonly used.

              Explanation of symbols on main parts of drawing

1. Disk Cutting Wheel 2.14. Ground floor 3.15. Scribe

10. Diamond Conical Cutting Wheel 11. Conical Surface

12. Axis Support Center 13. Rejection of Deletion

16. Cylindrical raw material 17. Carbide auxiliary shank 18. Chuck

20. Polishing wheel or electrode wheel for discharge 21. Holder assembly 23. Cutting wheel holder

Claims (9)

An edge surface 14 is formed on both sides of the scribe edge 15 formed at the center, and a triangular cone-shaped conical surface 11 whose cone vertices are the axial support centers 12 on the outer side of each edge surface 14 is formed. In the diamond cone-shaped cutting wheel 10 formed integrally, In the shaft support center 12, the center support angle θ1 of the conical surface 11 is 60 to 130 degrees, and the edge edge sum angle θ2 formed by both edge surfaces 14 is 80 to 120 degrees, The length L1 of both ends of the shaft support center 12 is 2.0 to 18 mm, and the cutting edge width L2 of the length of both edge surfaces 14 is 0.3 to 6.0 mm, A PCB tampe cutter, characterized in that the outer diameter (D1) of the circumference of the scribe edge 15 is 1.0 to 5.0 mm. Vacuum welding the cylindrical raw material 16 to the cemented carbide auxiliary shank 17, Fixing the cemented carbide auxiliary shank 17 to which the cylindrical raw material 16 is vacuum-welded to the chuck 18 to rotate by the rotating means; The cylindrical surface 16 of the cemented carbide shank 17 rotated by the rotating means is conical surface 11 by an abrasive wheel or discharge electrode wheel 20 which is vertically operated and rotated inclined by the rotating and vertical operating means. And a step of sequentially processing the edge surface (14). delete delete delete The cylindrical raw material 16 of claim 2, which is vacuum-welded to the cemented carbide auxiliary shank 17, The outer diameter (D2) of 1.5 to 12mm and the length (L3) of the manufacturing method of the PCB tampe cutter, characterized in that the. The method according to claim 2, wherein the chuck 18 for holding the cemented carbide auxiliary shank 17 to which the cylindrical raw material 16 is vacuum welded is either pneumatic chuck or hydraulic chuck. . The process according to claim 2, wherein in processing the conical surface 11 and the edge surface 14 by the polishing wheel or the electrode electrode 20 for discharge, the conical surface 11 is discharge-processed by the EDG electrode wheel, and the scribe edge 15 The edge surface 14 of the manufacturing method of the RFID stamp cutter, characterized in that the grinding with a non-stick wheel. The polishing bite wheel of the polishing wheel or the discharge electrode wheel 20 for polishing the edge surface 14 is a cup-shaped VITRIFIFD having a DIA MESH 600 to 3000 and a concentration of 100 to 150. A manufacturing method of a PCB tampe cutter, characterized in that the WHEEL.