KR101673427B1 - Tip holder with wheel tip for forming scribing line, holder joint with the tip holder, and tip holder installation with the them - Google Patents

Abstract

The present invention relates to a tip holder attachment structure used for forming a scribe line, and more particularly to a tip holder with a wheel tip for scribing line formation, a holder joint to which the tip holder is mounted, To a tip holder attachment structure including a holder joint.

Description

TECHNICAL FIELD [0001] The present invention relates to a tip holder with a scribing line forming wheel tip, a holder joint to which the tip holder is mounted, and a tip holder mounting structure including the tip holder and the holder joint. , and tip holder installation with the them}

The present invention relates to a tip holder attachment structure used for forming a scribe line, and more particularly to a tip holder with a wheel tip for scribing line formation, a holder joint to which the tip holder is mounted, To a tip holder attachment structure including a holder joint.

Generally, a scribing process and a breaking process are used for cutting a brittle material substrate such as a substrate or a glass substrate having a predetermined large area, and a scribing device is used for forming a scribe line in the scribing process.

The scribing apparatus is usually constructed such that bridges are laid along the x-axis direction so as to cross the moving table and the upper table, and the scribe head is movable along the guide provided on the bridge in the x- . In particular, a tip holder is attached to a distal end portion of a scribe head through a holder joint. However, the conventional structure of the holder joint and the tip holder as shown in FIG. 1 has difficulties in replacing the wheel tip.

1, a conventional holder joint 20 includes a holder portion 22 having a bearing 21 at an upper portion thereof and an L-shaped portion at an upper portion thereof, The tip holder 30 rotatably supports a disc-shaped wheel tip 31. The tip holder 30 is brought into contact with the positioning pin 23 by its side surface, And the tip holder 30 is fixed to the holder portion 22 by the fixing bolt 33. The holder 22 is fixed to the holder portion 22 of the joint 20,

However, since the wheel tip scribes the brittle material substrate by a predetermined length, it is worn out and deteriorates in performance. Therefore, it is necessary to replace the wheel tip regularly. If the conventional holder joint and the tip holder structure shown in FIG. 1 are provided, The operator first removes the tip holder 30 from the scribe head, removes the worn wheel tip 31 from the removed tip holder 30, attaches a new wheel tip to the tip holder 30, Since the holder 30 can be attached to the scribe head to complete the replacement operation, it is difficult for the operator to go through a very complicated process.

To solve this problem, the "tip holder attachment structure" of the registered patent No. 10-0992449 is provided with a positioning attachment portion at the other end of the tip holder, and the attachment portion is parallel to the through- And a tip holder and a holder joint structure having a structure in which pins are fastened and fixed.

However, the tip holder mounting structure disclosed in the above patent facilitates the work of replacing the wheel tip of the operator through the structure in which the wheel tip and the tip holder are integrated and the fixing structure using the magnetic force, but since the position determining member exists inside the mounting structure There is a problem in that it is difficult to check wear and deformation of the positioning member or foreign matter, and thus it is not possible to cope with the change of the mounting position of the scraping wheel. In addition, it is not possible to prevent the tip holder from swinging along the longitudinal direction of the parallel pin, and there is still a problem that the position fixation can not be precisely performed due to occurrence of a slight clearance and the tightening stability is poor.

Therefore, there is a need to develop a new structure of the tip holder attachment structure in which such a problem is solved.

The present inventors have completed the present invention by developing a novel structure of a tip holder and a holder joint in which a structure capable of determining a position of a research result is formed not on the inside but on the outside of the holder joint.

Therefore, it is an object of the present invention to provide a method and a device for determining the position of a scribing wheel, in which the position determining structure is located outside the holder joint, And a tip holder mounting structure including the tip holder and the holder joint, wherein the tip holder is attached to the tip holder, the tip holder, and the holder joint. .

Another object of the present invention is to provide a structure for determining a position when a tip holder is mounted on a holder joint so as to be able to interact with each other in a tip holder and a holder joint, A tip holder with a wheel tip for scribe line formation having a structure in which the operator's convenience is improved since the structure for determining the position formed in the holder joint does not need to be distinguished from the direction at the time of mounting, And a tip holder attachment structure including a holder and a holder joint.

It is still another object of the present invention to provide a scribing apparatus capable of reliably preventing fluctuations due to clearances or the like that may occur on both sides in the direction of movement of the scribing wheel, A tip holder with a wheel tip for forming a scribe line of a possible structure, a holder joint to which the tip holder is mounted, and a tip holder attachment structure including the tip holder and the holder joint.

The object of the present invention is not limited to the above-mentioned objects, and although not explicitly mentioned, the object of the invention which can be recognized by a person skilled in the art from the description of the detailed description of the invention .

In order to accomplish the object of the present invention, first, the present invention provides a wheel tip attaching device, comprising: a wheel tip attaching part formed at one end and having a scribing line forming wheel tip; And a coupling portion formed on the other end side and engaging with the holder joint, wherein the coupling portion includes: a pillar member having a generally columnar shape; And a protruding member spaced from the end of the pillar member by a predetermined distance and protruding from the outer side surfaces of the pillar member, which are perpendicular to the central axis of the tip holder, respectively.

In a preferred embodiment, the wheel-tip attachment portion includes a pair of slit-forming members forming both side walls of the slit so as to form a slit having a certain depth parallel to the axis of the tip holder at the one end side; A pin groove formed in an end surface of the slit forming member in a direction perpendicular to the slit; A pin inserted into the pin groove; A wheel tip for forming a scribe line attached to rotate in the slit by passing the pin through a central through hole; And a replacement member provided at both ends of the pin for replacement of the wheel tip.

In a preferred embodiment, the replacement member is formed at both ends of the pin groove to fix the pin inserted into the pin groove.

In a preferred embodiment, the replacement member is a magnetic body fixed parallel to the slit.

According to a preferred embodiment, the wheel-tip attaching portion further includes an engaging groove formed perpendicularly to the slit to the side of the pair of slit-forming members adjacent to the engaging portion, and the replaceable member is fixed to the engaging groove .

According to a preferred embodiment of the present invention, the protruding member has a through hole formed at a position spaced apart from the end surface of the column member by a predetermined distance, perpendicular to the central axis of the tip holder. And a through-pin inserted and fixed in the through-hole and having both ends exposed to the outside of the through-hole for a predetermined length.

In a preferred embodiment, the through pins are formed of a wear resistant material.

According to the present invention, there is provided a holder joint which is mounted on a scribe head of a scribe apparatus and detachably holds a tip holder, comprising: a cylindrical holding space formed from an opening at one end so as to hold the tip holder; A retaining member including two side openings formed by removing part of the side surface at one side of the opening at a predetermined width and depth; And a magnet embedded in the tubular holding space at the other side lower side.

In a preferred embodiment, the two side openings maintain a constant width from the one end opening side to the first depth, and from the first depth to the second depth which is the other end depth of the side opening, Is reduced.

In a preferred embodiment, the axis formed by connecting the two side openings at positions adjacent to and centered on the second depth is spaced apart from the center axis of the holder joint.

In a preferred embodiment, one side surface of each of the side surfaces defining the side surface opening is parallel to the central axis of the holder joint from the one end opening side to the second depth side, and the other side surface extends from the one end opening side to the first depth And is formed to have an angle from the first depth to the second depth in parallel with the central axis of the holder joint, and to be in contact with the second depth of the one side surface.

According to another aspect of the present invention, there is provided a wheel-tip attaching member having a wheel tip for forming a scribe line at one end thereof and a coupling member engaging with the holder joint at the other end thereof, And a protruding member spaced from the end of the pillar member and protruding perpendicularly to the central axis of the tip holder from outer side surfaces of the pillar member, A tubular retaining space formed from an opening at one end to hold the tip holder; and two side openings formed by removing part of the side surface defining the tubular retaining space at the one opening end side to a certain width and depth Holding member; And a holder joint including a magnet embedded in the other end lower side of the tubular holding space, the holder joint being mounted on the scribe head and detachably holding the tip holder, wherein the holder holder comprises: When the engaging portion of the tip holder is inserted into the tubular retaining space of the member, the protruding member formed at the engaging portion of the tip holder is inserted along the two side openings formed in the holding member of the holder joint, The engaging portion of the tip holder is brought into contact with the holder joint at one side forming the cylindrical holding space of the holder joint to determine the position of the tip holder and the tip holder is magnetically fixed to the one end opening of the holder joint Wherein the tip holder is attached to the tip holder.

In a preferred embodiment, the coupling portion of the tip holder is made of a magnetic metal.

In a preferred embodiment, the distance from the one end opening of the holder joint to a certain depth of the side opening is shorter than the distance from the one end opening of the holder joint to the other side depth of the side opening.

In a preferred embodiment, when the projection member formed at the coupling portion of the tip holder is positioned at a predetermined depth of the two side openings formed in the holding member of the holder joint, the center axis of the projection member does not coincide with the center axis of the holder joint .

In a preferred embodiment, the tip holder is any one of the tip holders described above.

In a preferred embodiment, the holder joint is any one of the holder joints described above.

The present invention has the following excellent effects.

First, according to the present invention, since the structure for determining the position exists outside the holder joint, it is possible to preliminarily cope with wear and deformation of the structure for determining the position, or change in the position of the scraping wheel, More precise scribing work is possible.

In addition, according to the present invention, when the tip holder is mounted on the holder joint, the structure for determining the position is formed so that the tip holder and the holder joint can interact with each other, The structure for determining the position formed in the holder joint does not need to distinguish the direction at the time of mounting, thereby improving the convenience of the operator.

Further, according to the present invention, it is possible to reliably prevent fluctuations due to clearances or the like, which may be generated on both sides in the direction in which the scribing wheel moves, so that accurate and precise work can be performed without shaking during the work of forming the scribe line Do.

These technical advantages of the present invention are not limited to the above-mentioned technical scope, and even if not explicitly mentioned, the effect of the invention which can be recognized by a person skilled in the art from the description of the concrete contents for carrying out the invention Of course.

1 is a perspective view showing a conventional holder joint and a tip holder structure.
2A and 2B are an exploded perspective view and an assembled perspective view, respectively, illustrating one embodiment of a tip holder according to a preferred embodiment of the present invention.
3A and 3B are respectively an exploded perspective view and an assembled perspective view illustrating another embodiment of the tip holder according to the preferred embodiment of the present invention.
4A to 4C are an exploded perspective view, a combined perspective view, and a side view, respectively, illustrating one embodiment of a holder joint according to a preferred embodiment of the present invention.
5A to 5D are an exploded perspective view, a combined perspective view, a plan view, and a side view, respectively, illustrating one embodiment of the structure with a tip holder according to a preferred embodiment of the present invention.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. Also, in certain cases, there may be a term selected arbitrarily by the applicant, in which case the meaning thereof will be described in detail in the description of the corresponding invention. Accordingly, the terms used in the present invention should not be construed to be mere terms, but should be interpreted based on the ordinary meanings of the terms and contents described throughout the specification of the present invention.

Hereinafter, the technical structure of the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments.

However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Like reference numerals used to describe the present invention throughout the specification denote like elements.

Technical features of the present invention include a tip holder and a holder joint structure having a structure in which a structure for determining a position so that the tip holder can be correctly mounted is located outside the holder joint when the tip holder is mounted on the holder joint, Holder attachment structure.

That is, the structure for determining the position at which the tip holder can be accurately mounted on the holder joint in the structure of the tip holder attachment structure in which the known tip holder is integrally mounted on the holder joint is all formed inside the holder joint to determine the position It is difficult to confirm the abrasion and deformation of the structure or the foreign matter, and it is not possible to cope with the change of the position of the scraping wheel mounting due to this.

Therefore, the tip holder of the present invention comprises a wheel tip attachment portion formed on one end side and having a scribe line formation wheel tip; And a coupling portion formed on the other end side and engaging with the holder joint, wherein the coupling portion includes a columnar member having a generally columnar shape; And a protruding member spaced from the end of the pillar member by a predetermined distance and protruding from the outer side surfaces of the pillar member, which are opposed to each other, perpendicularly to the central axis of the tip holder.

The holder joint of the present invention is a holder joint which is mounted on a scribe head of a scribe apparatus and detachably holds the tip holder, the holder joint comprising: a cylindrical holding space formed from an opening at one end so as to hold the tip holder; A holding member including two side openings formed by removing a portion of the side surfaces forming the space from the one opening side at a predetermined width and depth; And a magnet embedded in the other end of the holding member.

The tip holder attaching structure of the present invention is characterized in that when the engaging portion of the tip holder is inserted into the cylindrical holding space of the retaining member formed from the one end opening of the holder joint, the protruding member formed on the engaging portion of the tip holder, When the tip holder is inserted along the two opened side openings and positioned at a predetermined depth of the side opening, the engaging portion of the tip holder contacts the one side of the cylindrical holding space of the holder joint to determine the position of the tip holder, And is fixed to the one-end opening of the holder joint by a magnetic force.

First, the structure of the tip holder of the present invention will be described in more detail with reference to Figs. 2A to 3B. FIGS. 2A and 2B are an exploded perspective view and an assembled perspective view, respectively, illustrating one embodiment of a tip holder according to a preferred embodiment of the present invention, and FIGS. 3A and 3B are views showing another example of the tip holder according to the preferred embodiment of the present invention An exploded perspective view and an assembled perspective view illustrating an embodiment.

As shown in FIGS. 2A to 3B, the tip holder 100 of the present invention includes a wheel-tip attachment portion 110 formed at one end and a coupling portion 120 formed at the other end and engaged with a holder joint.

The wheel tip attachment portion 110 may be the same as the structure in which the wheel tip of the known tip holder is attached to the wheel tip of the known tip holder in which the wheel tip is integrated with the tip holder, The wheel tip 114 and the replaceable member 115 may be replaced with a wheel tip by replacing the slit forming member 111, the pin groove 112, the pin 113, the wheel tip 114, That is, in the conventional tip holder mounting structure, when the wheel tip is worn down and the performance is degraded, the wheel tip is integrated with the tip holder to replace the tip holder with the wheel tip, So that only the wheel tip can be replaced.

The slit forming member 111 is formed on one end side of the tip holder 100 and is formed of a pair of slits 111a having a certain depth and width in a direction parallel to the central axis of the tip holder 100, . The slit 111a is formed to have the same width and a certain depth. The width and depth of the slit 111a may vary depending on the size of the wheel tip 114 rotating and located on the slit 111a. Particularly, the slit forming member 111 is formed so as to form both side walls of the flat side wall surface, that is, the slit 111a, which is in contact with the slit 111a so as to form a slit 111a symmetrical with respect to the center axis of the tip holder 100 And the other side wall surface of the slit forming member 111 opposed thereto is shown as a planar shape, but its shape is not limited. The end face of the slit forming member 111 may be formed to have a slope as the slit forming member increases from the both ends toward the center as shown in FIGS. 2A and 2B, and the central portion may be flat, that is, a vertical section thereof may have a trapezoidal shape. Or may be formed as a flat plate having both sides and a central portion on the same plane as shown in FIG. 3B.

The pin groove 112 is a groove for receiving the pin 113 used for mounting the wheel tip 114 and is formed in a direction perpendicular to the slit 111a at the end face of the slit forming member 111, The center axis of the tip holder 100 and the center axis of the tip holder 100 may be perpendicular to each other. In the drawing, a portion is shown as an open groove, but it may be formed as a closed groove without being opened. In addition, one of both ends of the pin groove 112 may be closed depending on the type of the replacement member.

The pin 113 is inserted into the pin groove 112 and rotatably fixes the wheel tip 114. Therefore, the wheel tip 114 acts as a rotation axis when rotating to form a scribe line. Thus, although the shape of the pin 113 is not limited as long as it can act as an axis of rotation, the shape of the pin 113 is not limited as long as both end faces form a circular flat bar shape and their diameter can be inserted into the pin groove 112 So that the pin 113 is not rotated in the pin groove 112, thereby reducing the possibility of wear due to friction. Further, the length of the pin 113 and shapes of both ends may vary depending on the configuration of the replacement member 115.

The wheel tip 114 may be a known shape as a part forming a scribe line, for example, a disk-like shape having a predetermined diameter and a thickness, the circumferential portion having a conical shape in cross section and having a through hole at its center . The wheel tip 114 may be attached to the tip holder 100 to rotate in the slit 111a by passing the pin 113 through the center through hole formed in the wheel tip 114. [

The replacement member 115 is a component provided at both ends of the pin 113 for replacement of the wheel tip 114 and is formed at both ends of the pin groove 112 so that the pin 113 inserted into the pin groove 112 is removed Any known configuration can be adopted as long as it can function to prevent it. In the present invention, different embodiments of the replacement member 115 are shown in Figs. 2A and 2B and Figs. 3A and 3B, respectively.

One embodiment of the replaceable member 115 is formed in an annular shape partially removed as shown in Figs. 2A and 2B, and is inserted into the pin groove 112 by a predetermined length at both ends of the pin groove 112, And the pin 113 is inserted into the pin groove 112 to be in contact with both end faces. Both ends of the replacing member 115 may have a structure to be fitted to both ends of the pin 113 if necessary. The interchangeable member 115 having such a configuration is inserted and fixed at both ends of the pin groove 112 at both ends thereof into the pin groove 112 and then the annular body portion is inserted into the engaging portion 120 of the pair of slit forming members 111 The pin 113 can be effectively fixed by engaging with the engaging groove 116 formed perpendicularly to the slit 111a on the adjacent side.

Another embodiment of the replacement member 115 may be formed of a magnetic body fixed parallel to the slit 111a as shown in Figs. 3A and 3B. In this case, the receiving grooves 117 may be formed on the other side wall surfaces of the slit forming members 111 adjacent to both ends of the pin grooves 112 so that the replacing member 115 made of a magnetic material can be received. When the replacement member 115 is formed, the slit forming member 111 may be formed of a material capable of exhibiting a strong magnetic force. At this time, the lengths of the pin 113 and the pin groove 112 are the same as those of the replacement member 115 shown in FIGS. 2A and 2B. Both ends of the pin groove and both ends of the pin 113 are made of a magnetic material. 115 so that the pin 113 can be fixed by the magnetic force. Although not shown, only one of the opposite ends of the pin groove 112 may be closed, and only one of the exchange members 115 may be formed of the magnetic material in which the receiving groove 117 is formed on the other end side.

Since the wheel tip attachment portion 110 of the present invention can replace the wheel tip only extremely easily when the wheel tip 114 is worn through the replacement member 115, unlike the tip holder used in the conventional tip holder attachment structure, Since the remaining structure of the tip holder can be used as it is, the environment-friendly production process can be realized by saving resources.

The engaging portion 120 is formed at the other end of the tip holder 100 integrally with the wheel tip attaching portion 110 formed at one end of the tip holder 100 and is engaged with the holder joint 200, 121 and a protruding member 122.

The columnar member 121 has a generally columnar shape, and one end of the columnar member has one end connected integrally with the wheel-tip attachment portion 110 and the other end formed with the other end of the tip holder 100. The end surface of the pillar member 121 may be circular or polygonal, but it may be substantially the same shape as the shape of the holding space of the holder joint since it should be mounted in the holding space of the holder joint. In consideration of ease of mounting and friction, It may be a cylindrical shape.

The protruding members 122 are spaced a predetermined distance apart from the ends of the pillar members 121, particularly the ends of the other end of the pillar members 121, perpendicular to the central axis of the tip holder 100 As shown in Fig. In particular, the center axis connecting the two protruding members 122 formed may be formed to be orthogonal to the center axis of the tip holder 100. The shape of the projecting member 122 is not limited as long as the shape is longer than the width, but it may be a bar shape having both ends rounded in consideration of friction when coupling with the holder joint.

The protruding member 122 has a through hole 122a formed at a position spaced from the end surface of the pillar member 121 by a predetermined distance and perpendicular to the central axis of the tip holder 100, And a through-hole 122b inserted and fixed in the through-hole 122a and having a length such that both end portions are exposed to the outside of the through-hole 122a for a predetermined length. Although not shown, a through hole is not formed but two projecting members are formed on the outer surface of the pillar member 121, and a central axis connecting two formed projecting members is formed perpendicular to the central axis of the tip holder 100 It is not limited to be integrally formed with the pillar member 121 as long as it can be used.

Since the projecting member 122 functions as a component for determining the position of the tip holder 100 by making contact with the outside of the holder joint 200, various materials such as stainless steel, ceramics and PCD can be used. However, The through-hole 122a and the through-hole 122b may be formed of a ceramic material having excellent abrasion resistance.

Next, the structure of the holder joint of the present invention will be described in more detail with reference to Figs. 4A to 4C. 4A to 4C are an exploded perspective view, a combined perspective view, and a side view, respectively, illustrating one embodiment of a holder joint according to a preferred embodiment of the present invention.

4A to 4C, the holder joint 200 of the present invention is mounted on a scribe head of a scribe apparatus and includes a holding member 210 and a magnet 220 as detachably holding elements of the tip holder .

4A and 4B, the holding member 210 includes a cylindrical holding space 211 and two side openings 212 (see FIG. 4A) ).

The tubular holding space 211 is formed as an opening at one end so as to hold the tip holder 100, and a tubular space is formed at a certain width and depth from the opening, so that the other end is closed at the bottom. The tubular retention space 211 may be of various shapes, but may be cylindrical overall.

The two side openings 212 are formed by removing a part of the side surfaces forming the cylindrical holding space 211 from the side of the opening 211a at a predetermined width and depth, respectively, as shown in FIG. 4B. And the width from the first depth 212c to the second depth 212d which is the other end depth of the side opening 212 is gradually increased from the opening 211a to the second depth 212d, . The width of the side opening 212 is formed at least larger than the diameter of the protruding member 122 of the tip holder 100 so that the protruding member 122 can be easily inserted, 200, the protruding member 122 formed on the tip holder 100 can be caught.

 4C, one side surface 212a of both side surfaces forming the side opening 212 is formed in such a manner that the center of the holder joint 200 from the opening 211a side to the second depth 212d, And the other side surface 212b is parallel to the central axis of the holder joint 200 from the one opening 211a side to the first depth 212c and is parallel to the second depth 212d at the first depth 212c, May have a shape in which an inclined portion having a predetermined angle is formed to abut the second depth 212d of the first side surface 212a.

When the two side openings 212 are formed in the holding member 210 as described above, the second depth 212d formed in each of the side openings 212 is adjacent to the center, or slightly deviated from the center, The axis formed by connecting the two side openings 212 in the holder joint 200 is spaced apart from the center axis of the holder joint 200 as shown in FIG. 4C. Since the axis formed by connecting the two side openings 212 at a certain depth 212e in the state where the tip holder 100 is mounted on the scribe wheel 100 is aligned with the center axis of the projecting member 122, It is possible to maintain the straightness of the vehicle.

The magnet 220 is embedded in the lower end of the tubular holding space 211 and attracts the coupling part 120 of the tip holder 100 with magnetic force. The engaging portion 120 of the tip holder 100 inserted into the cylindrical holding space 211 is pulled by the magnetic force of the magnet when the magnet is embedded in the other end lower side of the tubular holding space 211, It is very easy to mount the holder holder 200 on the holder joint 200 and the tip holder 100 can be fixed to the opening 211a of the holder joint 200 by the magnetic force.

Next, the tip holder attachment structure of the present invention will be described in more detail with reference to Figs. 5A to 5D. 5A to 5D are an exploded perspective view, a combined perspective view, a plan view and a side view, respectively, illustrating one embodiment of the structure with a tip holder according to a preferred embodiment of the present invention.

5A to 5D, the structure 1 with a tip holder according to the present invention includes a wheel tip attachment portion formed at one end and having a scribe line formation wheel tip; And a holder joint (200) mounted on a scribe head of the scribe device and detachably holding the tip holder (100).

As shown in FIG. 5A, the tip holder 100 includes a pillar 121 having a pillar-shaped engagement portion 120 to be coupled with a holder joint at the other end thereof; And protruding members 122 protruding from the outer surfaces of the pillars 121 perpendicularly to the center axis of the tip holder 100 and spaced from the ends of the pillars 121 by a predetermined distance do. It is also possible to further include the structure of the tip holder 100 described above.

5A, the holder joint 200 includes a cylindrical holding space 211 formed from an opening at one end so as to hold the tip holder 100, and a portion of the side surface defining the cylindrical holding space 211 A retaining member including two side openings 212 formed by being removed from the opening side once to a predetermined width and depth; And a magnet embedded in the other side of the lower end of the cylindrical holding space 211. It is also possible to further include the structure of the holder joint 200 described above.

5A, the tip holder mounting structure 1 including the tip holder 100 and the holder joint 200 having such a structure is formed in a cylindrical shape of the holding member 210 formed from one end opening of the holder joint 200, When the engaging portion 120 of the tip holder 100 is inserted into the holding space 211, the protrusion member 122 formed on the engaging portion 120 of the tip holder is inserted into the holding member 210 of the holder joint 200 5B and 5C, when the engaging portion 120 of the tip holder 100 is positioned at a predetermined depth 212e of the side opening 211 as shown in FIGS. 5B and 5C, The position of the tip holder 100 is determined by contacting one side of the cylindrical holding space of the holder joint 200 and the tip holder 100 is positioned at one end opening 211a of the holder joint 200 And has a configuration that is fixed by a magnetic force.

Here, the coupling portion 120 of the tip holder 100 may be made of a magnetic metal to enhance the fixing force with the magnet. The distance from the one end opening of the holder joint 200 to the certain depth 212e of the side opening 212 is greater than the distance from the one end opening of the holder joint 200 to the other depth of the side opening side, Can be configured to be short.

5C and 5D, the protruding member 122 formed on the engaging portion 120 of the tip holder 100 has two side openings 212 formed in the retaining member 210 of the holder joint 200, The center axis of the protruding member 122 is spaced apart from the center axis of the holder joint 200 and is spaced apart from the center axis of the holder joint 200. This structure allows the scribing operation Not only the straightness of the scribe wheel can be maintained but also the swing due to the clearance or the like which may be generated on both sides in the moving direction of the scribe wheel is surely prevented, Precise work can be done.

The tip holder attachment structure 1 of the present invention is characterized in that when the tip holder 100 is attached to the holder joint 200, the protrusion member 122 of the tip holder 100 and the holder joint 200, Since the protruding member 122, which is a structure for determining the position formed in the tip holder, has a symmetrical structure with respect to the tip holder 100, It is not necessary to distinguish the mounting direction of the tip holder 100 when mounted on the side opening 212 formed in the side surface of the main body 100. Therefore, the operator's convenience can be improved.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, Various changes and modifications will be possible.

1: Tip holder attachment structure
100: Tip holder 110: Wheel tip attachment part
111: slit forming part 112: pin groove
113: pin 114: wheel tip
115: Replacement member 116:
120: engaging portion 121:
122: projecting member 122a: through hole
200: holder joint 210: retaining member
211: holding space 211a: opening
212: side opening portion 212a: one side surface
212b: other side 212c: first depth
212d: second depth 212e: constant depth
220: Magnet

Claims (17)

delete delete delete delete delete delete delete A holder joint mounted on a scribe head of a scribe device and detachably holding a tip holder,
A tubular holding space formed from an opening at one end so as to hold the tip holder, and two side openings formed by removing a portion of the side surface defining the tubular holding space at the one end opening side with a certain width and depth, absence; And a magnet embedded in the other end lower side of the cylindrical holding space,
Wherein the two side openings maintain a constant width from the one end opening side to the first depth and the width decreases from the first depth to the second depth which is the other end depth of the side opening portion,
An axis formed by connecting the two side openings at positions adjacent to and centered on the second depth is spaced apart from the center axis of the holder joint,
Wherein one side surface of each of the side surfaces forming the side surface opening is parallel to a central axis of the holder joint from one end opening side to the second depth side and from the one end opening side to the first depth, And an inclined portion having a predetermined angle from the first depth to the second depth is formed to abut the second depth of the one side surface.
delete delete delete A wheel tip attaching portion having a wheel tip for forming a scribe line at one end thereof and a coupling portion engaging with the holder joint at the other end side thereof, And a protruding member spaced from the end of the pillar member and protruding perpendicularly to the central axis of the tip holder from outer side surfaces of the pillar member, And a holder joint mounted on the scribe head and detachably holding the tip holder,
When the engaging portion of the tip holder is inserted into the cylindrical holding space of the retaining member formed from the one end opening of the holder joint, the projecting member formed on the engaging portion of the tip holder is inserted along the two side openings formed in the holding member of the holder joint. The tip holder is brought into contact with the holder joint at one side of the cylindrical holding space of the holder joint to determine the position of the tip holder, And is fixed to the one-end opening by a magnetic force,
The distance from the one end opening of the holder joint to a certain depth of the side opening is shorter than the distance from the one end opening of the holder joint to the other end depth of the side opening,
When the protruding member formed at the engaging portion of the tip holder is positioned at a predetermined depth of the two side openings formed in the holding member of the holder joint, the center axis of the protruding member is spaced apart from the center axis of the holder joint, Wherein the protruding member contacts only the inclined portion of the side opening.
13. The method of claim 12,
Wherein the engaging portion of the tip holder is made of a magnetic metal.
delete delete delete delete

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