JPH0711906Y2 - Cutter holder mounting structure - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutter holder mounting structure. More specifically, the present invention relates to an improvement in accuracy of attaching a cutter holder in a cutter holder attachment structure for attaching and fixing the cutter holder to a tool holder provided in a cutting device.

[0002]

2. Description of the Related Art Conventionally, as a mounting structure for a cutter holder, for example, a mounting bolt for penetrating both a tool holder and a cutter holder having a flat blade type cutter, which are mounted at the lower end of at least a vertically moving mounting portion of a cutting machine. It is known that the through holes of the mounting bolts for one or both of the tool holder and the cutter holder are made into a burrow hole shape or an oblong hole shape by tightening with.

This conventional cutter holder mounting structure is
The horizontal level in the blade length direction of the flat blade cutter can be adjusted by adjusting the attachment position and angle of the cutter holder with respect to the tool holder using the through hole of the fool hole shape and the long hole shape. It is like this.

In such a conventional cutter holder mounting structure, even if the cutter is positioned horizontally on a surface plate or the like during mounting, depending on the degree of tightening of the mounting bolts, the tightening stress may be increased due to the through holes of the fool hole shape or the long hole shape. Since there is a clearance and the mounting position of the cutter holder with respect to the tool holder deviates, it is not possible to precisely adjust the horizontal level, resulting in a problem of low mounting accuracy. Further, when the stress of the frequent cutting work is applied, the stress of the cutting work escapes in the through holes of the fool hole shape and the long hole shape, and the mounting position of the cutter holder with respect to the tool holder gradually shifts. Since it cannot hold the horizontal level, it has a problem that the holding performance of the mounting is low.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above-mentioned problems, and an object thereof is to provide a mounting structure for a cutter holder having high mounting accuracy and holding performance for mounting.

[0006]

In order to solve the above-mentioned problems, a cutter holder mounting structure according to the present invention has a flat-blade type cutter for a tool holder which is mounted on at least a lower end of a mounting portion of a cutting device which moves up and down. In the mounting structure of the cutter holder that attaches and fixes the cutter holder with, the tool holder has a mounting reference surface at the top of the mounting groove that is opened in the lower surface and into which the cutter holder is inserted, and the cutter holder has an upper part facing the mounting reference surface. A horizontal adjusting part is provided at at least two places, and the tool holder and the cutter holder are fixed by tightening with a mounting bolt that is screwed diagonally downward from the tool holder to the cutter holder.

[0007]

According to the above-described means, when the cutter holder is inserted into the mounting groove of the tool holder, the horizontal level is adjusted by the horizontal adjusting portion and the mounting bolt is tightened, the cutter holder is positioned in the mounting groove of the tool holder from the threading direction of the mounting bolt. Since the push-up bias is applied to the mounting reference plane, the adjusted horizontal level is not disturbed, and the push-up biasing force can hold the adjusted horizontal level against the stress of the cutting work. The problem of providing a cutter holder mounting structure with high mounting accuracy and mounting holding performance is solved.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a cutter holder mounting structure according to the present invention will be described below with reference to the drawings.

A tool holder T to which this embodiment is attached
As shown in detail in FIGS. 4 and 5, the cutting apparatus M equipped with is suitable for continuously cutting a thin processing material P such as a ceramic green sheet in a plurality of directions. There is.

That is, the cutting apparatus M includes a pulse motor Mb fixed to a base frame Ma, a horizontal rotation moving unit Mc supported by the base frame Ma and horizontally rotated by the pulse motor Mb, and a horizontal rotation moving unit. A pulse motor Md fixed to Mc and a horizontal linear moving unit Me supported by the horizontal rotary moving unit Mc and moved horizontally by the pulse motor Md.
And a servo motor Mf fixed to the horizontal linear movement unit Me
And a vertical movement unit Mg supported by the horizontal linear movement unit Me and moved up and down by the servo motor Mf, and a vertical movement unit M.
and a tool holder T attached to the lower end of g, and the tool holder T is moved up and down in an arbitrary direction at a constant pitch to cut the processing material P with the cutter 1a of the cutter holder 1 attached to the tool holder T. Is able to.

In the vicinity of the tool holder T, the position of the processing material P under the cutter 1a is detected and the pulse motors Mb, Md and the servo motor Mf are automatically driven and corrected in cooperation with a controller (not shown). Detection mechanism Mi to control
And a cleaning mechanism Mj for removing foreign matter adhering to the cutter 1a
And are provided.

Further, the cutting apparatus M is provided with a conveying film feeding roller M1 on which the conveying film Mk is wound and a conveying film winding roller Mm for winding the conveying film Mk.
Are arranged below the tool holder T with a space therebetween, and the processing material P is placed on the transport film Mk and continuously moved and supplied directly below the tool holder T.

Further, the cutting apparatus M includes a transport film feeding roller M1, a transport film winding roller Mm.
The cutting board Mo is installed just below the tool holder T at the center of the fixed table Mh arranged along the lower surface of the transport film Mk between the cutting boards Mo, and the cutting board Mo can be moved up and down by the lifting unit Mp. The machining material P can be set on a constant machining surface.

In the cutting apparatus M as described above, the lower end of the ascending / descending movement part Mg is the attachment part A of the tool holder T, and as shown in detail in FIGS. The box-shaped tool holder T can be removably mounted on the mounting portion A by suspending and locking the locking groove 2 provided on the upper part of the tool holder T on the mounting clamp Aa which is provided as possible. ing.

The tool holder T includes a cutter holder 1
The mounting groove 3 that can be inserted from below or from the side is opened in the box-shaped lower surface, and the cutter 1a of the cutter holder 1 is
Can be attached downward (toward the processing material P). Further, the top portion of the mounting groove 3 is formed on a flat, smooth, and horizontal mounting reference surface 4 facing the upper part of the cutter holder 1, and the side portion of the mounting groove 3 is provided with a bolt formed obliquely downward from the side surface. The holes 5 communicate with each other. Further, on both sides of the mounting groove 3, there are provided strippers 6 that come into contact with the processing material P and slide along the cutter holder 1 to project and retract the cutter 1a. The stripper 6 is elastically urged by a spring in a direction to expose the cutter 1a, and is also pressed in the opposite direction by a rod Ab protruding and retracted from the mounting portion A. By controlling the pressing force of the rod Ab, the processing material is processed. The pressing force on P is variably controlled.

The cutter holder 1 comprises a flat blade cutter 1a mounted and fixed to a mounting base 1b having an L-shaped cross section by a mounting plate 1f which is fastened with bolts 1c. Jacks are provided on both sides of the upper surface of the mounting base 1b. A horizontal adjustment unit 1d including a screw is provided. This horizontal adjustment unit 1d
The rotation allows the projection length from the upper surface of the mounting base 1b to be changed.

A bolt hole 1e is formed on the side surface of the mounting base 1b of the cutter holder 1 so as to communicate therewith coaxially with the bolt hole 5 of the tool holder T.

According to this embodiment, the cutter holder 1 is inserted and inserted into the mounting groove 3 of the tool holder T (regardless of whether it is mounted on the mounting portion A) or not, and the surface of the cutter holder 1 is used to insert the cutter holder 1. After rotating the horizontal adjustment unit 1d to adjust the horizontal level, the mounting bolt 8 is attached to the bolt holes 5,
The cutter holder 1 can be attached to the tool holder T by screwing the tool holder T and the cutter holder 1 into place by screwing them through 1e. That is, compared to the conventional case, a particularly troublesome mounting work is not required, and the mounting work is simple.

In mounting the cutter holder 1 on the tool holder T as described above, since the screwing direction of the mounting bolt 8 is obliquely downward from the tool holder T to the cutter holder 1, the mounting bolt 8 tightens the cutter holder 1. The mounting reference surface 4 of the mounting groove 3 of the tool holder T is pushed up and urged, and the mounting reference surface 4 and the upper portion of the cutter holder 1 including the horizontal adjustment portion 1 come into contact with each other without being changed. The horizontal level of the cut cutter holder 1 is not disturbed. In addition, since this pushing-up biasing force can resist the stress of the cutting work, the mounting reference surface 4
The face-to-face contact with the upper part of the cutter holder 1 including the horizontal adjustment part 1d does not change, and the adjusted horizontal level of the cutter holder 1 can be held.

[0020]

As described above, in the cutter holder mounting structure according to the present invention, when the horizontal level is adjusted by the horizontal adjusting portion of the cutter holder inserted in the tool holder and the mounting bolt is tightened, the cutter holder is mounted on the reference surface of the tool holder. Since it can be pushed up and urged, the adjusted horizontal level can be maintained even during the cutting work without disturbing the horizontal level, so that there is an effect that the mounting accuracy and the mounting holding performance are improved. Also, due to this effect,
Since the cutter of the cutter holder can always be held in an appropriate posture, the processing accuracy of the processing material is increased.

Further, since it is the mounting work of adjusting the horizontal level of the horizontal adjusting portion and tightening the mounting bolt, there is an effect that the mounting work is simple.

[Brief description of drawings]

FIG. 1 is a front cross-sectional view showing an embodiment of a cutter holder mounting structure according to the present invention.

FIG. 2 is a central longitudinal sectional view of FIG.

FIG. 3 is an enlarged cross-sectional view of a main part of FIG.

FIG. 4 is a front cross-sectional view showing the entirety of a cutting apparatus equipped with a tool holder to which an embodiment of a cutter holder mounting structure according to the present invention is mounted.

FIG. 5 is a central vertical cross-sectional view of FIG.

[Explanation of symbols]

 1 Cutter Holder 1a Cutter 3 Mounting Groove 1d Horizontal Adjustment Part 4 Mounting Reference Surface 8 Mounting Bolt A Mounting Part M Cutting Machine T Tool Holder

Claims (1)

[Scope of utility model registration request] 1. A cutter holder mounting structure in which a cutter holder having a flat blade cutter is mounted and fixed to a tool holder mounted on at least a lower end of a mounting portion of a cutting device which moves up and down. Is provided with a mounting reference surface at the top of the mounting groove, and the cutter holder is provided with horizontal adjusting portions at least at two locations on the upper surface facing the mounting reference surface.
Cutter holder mounting structure characterized in that the tool holder and the cutter holder are tightened and fixed by a mounting bolt that is threaded obliquely downward from the tool holder to the cutter holder.