KR20040081880A - A PCD Temp Cutter And Processing Method - Google Patents

Abstract

PURPOSE: Provided is a manufacturing method of PCD temp cutter for scribing a line on non-metal materials for easy and precise cutting by forming a diamond cutting wheel into a conical shape. CONSTITUTION: The PCD temp cutter is characterized by having a diamond cutting wheel(10) forming a triangle cone-shaped circular cone(11) in a single body, making an apex outside the edge sides formed on both sides of a scribing line(15) of a shaft-supporting center(12). In the cutting wheel, the angle(θ1) between shaft-supporting center and circular cone center is 60-130, the angle(θ2) between both edge sides is 80-120, the length(L1) between shaft-supporting centers is 2.0-18mm, and the length of edge sides is 0.3-6.0mm. The PCD temper cutter is manufactured by the following steps of: vacuum-welding a cylindrical material, being 1.5-12mm in outer diameter and 3-22mm in length, to a cemented carbide shank; fixing the cylindrical material-welded shank on a chuck and rotating; processing circular cone and edge side of the cylindrical material with electrode wheel and vitrified wheel, respectively.

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 into a disc shape, but a scribe brine 3 is formed on the centerline of the outer circumference, and the outside of the scribe edge 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 (PCDTemp Cutter) and its processing method 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 inclined line portion by a polishing wheel (or electrode wheel) which is rotated while being operated by a linear reciprocating motion and a constant polishing angle or discharge angle, to produce a PCD temp cutter. 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,

The edge surface 2 is formed on both sides of the scribe edge 15 formed at the center, and the conical surface 11 which has a triangular cone shape is formed integrally on the outer side of each said edge surface 2, It is characterized by the above-mentioned. It is achieved by the diamond cone-shaped cutting wheel (10).

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 surface 16 of the cemented carbide shank 17 rotated by the rotating means is conical surface by the grinding wheel or electrode wheel 20 is operated and rotated by the rotation and linear reciprocating motion and a constant polishing angle or discharge angle It is achieved by the manufacturing method of the PCD Temp Cutter which consists of a process which processes 11 and the edge surface 2 in order.

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 the main parts of the drawings

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

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 2 on both sides of the scribe edge 15 formed in the center of each of the edge surface (2) 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) is carried out a process of sequentially processing the conical surface 11 and the edge surface (2) by a grinding wheel or electrode wheel 20 is operated and rotated in a rotary and linear 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 is a cemented carbide using the electrode wheel or electrode wheel 20 which is rotated by the rotating means and has a constant grinding angle and discharge angle. The center part 11 of the other end of the auxiliary shank is discharged, the edge is processed using the electrode wheel and the polishing wheel, and the secondary part is processed in the order of the discharge machining of the center part 11. By conical surface discharge processing, the present invention and the cemented carbide auxiliary shank are naturally separated.

In order to form the scribe edge 15, the abrasive removal part 13 was polished and removed by the polishing wheel 20 to form the edge surface 2, which was previously processed (roughing) using the EDG electrode wheel. 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. 2) ie, the edge angle of the edge of the edge of the edge part 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 20 for polishing the edge surface 2, which is a cutting edge portion, is a VITRIFIED cup (CUP) shape made of a polishing bitley, that is, a DIA MESH 600 to 3000 designed for each type of raw material and a concentration of 100 to 150. Grind using a wheel. 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. A wheel or EDG electrode wheel 20 was mounted.

While 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 the EDG electrode wheel and the polishing wheel 20. , The outer diameter D1 of the circumferential edge 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 at was maintained at an angle of 100.

After the edge surface 2 is completely formed so that the scribe edge 15 is maintained on the center line, the grinding wheel 20 is mounted with a cup cone shaped with a cup (CUP) having a DIA MESH of 1500 and a concentration of 120 and conical surfaces on both sides. (11) was polished, and the length L1 of both ends of the shaft support center 12 was maintained at 2.42 mm, and the diamond tip conical cutting was carried out by maintaining the edge angle of the edge (θ1) formed by both edge surfaces 2 at 125 degrees. The wheel 10 was completed.

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 in which 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 portion, 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.

Claims (9)

In the case where the edge surfaces 2 are formed on both sides of the scribe edge 15 formed at the center, the triangular cone-shaped conical surface 11 in which the vertices of the cones become the axial support centers 12 on the outside of each edge surface 2 is formed. ), A tamped cutter, characterized in that formed by forming a diamond cone cutting wheel (10) integrally. 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 and the edge surface 2 by the grinding wheel 20 which is operated up and down inclined by the rotating and vertical operating means. ) Is a method of manufacturing a PCB tamper cutter comprising a step of sequentially processing. The method of claim 1, wherein the diamond cone cutting wheel 10, In the shaft support center 12, the center support angle θ1 of the conical surface 11 is 60 to 130, and the edge edge sum angle θ2 formed by both edge surfaces 14 is 80 to 120. CD stamp cutter. The method of claim 1, wherein the diamond cone cutting wheel 10, The length of both ends (L1) of the shaft support center (12) is 2.0 to 18mm, the edge width (L2) of the length of the two edge surfaces (2) is a PCB tampe cutter, characterized in that. The method of claim 1, wherein the diamond cone cutting wheel 10, A PCB tampe cutter, characterized in that the outer diameter (D1) of the circumferential edge of the scribe edge 15 is 1.0 to 5.0 mm. 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 of claim 2, wherein in processing the conical surface 11 and the edge surface 2, the conical surface 11 is discharge-processed with an EDG electrode file, and the edge surface 2 of the scribe edge 15 is polished with a bitley wheel. Method of manufacturing a PCB tampe cutter having a feature. The polishing bite wheel of the polishing wheel 20 for polishing the edge surface 2 is a cup-shaped VITRIFIFD WHEEL having a DIA MESH 600 to 3000 and a concentration of 100 to 150. Method for manufacturing a PCB tamper cutter.