KR101353495B1 - Workpiece length adjustment mechanism for machine stopper - Google Patents

Abstract

A stopper for a machine tool for adjusting the length of a workpiece comprises: a connecting flange part (1) including a flange (11) which has an extended periphery outwards to be fastened by a hydraulic chuck (C) and a bolt (B), flange holes (12) which are formed on one surface of the flange (11) to be connected to a fastening hole (C2), and an extending pipe which is inserted inside a drilling part (C1) on one side of the flange (11) and has a pipe shape; multiple connection extending parts (20) which are connected to one end of the connecting flange part (10) and have a pipe shape; an extending finish part (30) which is connected to one end of the connection extending part (20), has a rod passing hole at the center (31), and has a rod shape; and a rod stopping part (40) which is inserted into the rod passing hole (31) of the extending finish part (30) and which moves in the axial direction. As a result, the inserted length of a workpiece to be processed can be easily selected by installing the stopper for adjusting the length of a workpiece including a rod stopping part which moves in the axial direction at the center of a hydraulic check.

Description

Workpiece length adjustment mechanism for machine stopper}

The present invention relates to a workpiece length adjustment stop mechanism for a machine tool, and more particularly, a length adjustment stop mechanism provided with a stop rod part which is moved or fixed in the axial direction so that an insertion length of a workpiece to be processed is easily selected. The present invention relates to a workpiece length adjusting stop mechanism for a machine tool in which a dimension checking portion is formed in the length adjusting stop mechanism so that the insertion length of the workpiece to be inserted is visually confirmed.

In general, the hydraulic chuck is a device for fixing the workpiece when rotating the workpiece, a plurality of soft jaws (JAW) protruding radially installed in the chuck housing is used in the machine tool to support and fix the outer diameter of the workpiece It is an accessory.

On the other hand, a type of fixed chuck used in a machine tool includes a mechanical fixed chuck which moves the plurality of soft jaws to fix the work by using a mechanical handle, and moves the plurality of soft jaws by the pressure of a fluid. It is divided into a fixed hydraulic chuck.

Here, Korean Patent No. 10-1008853 has been disclosed as a technical document regarding a conventional hydraulic chuck.

Conventional hydraulic chuck is a workpiece insertion hole (h) perforated to insert the workpiece (W) in the center of the body as shown in Figure 1, and a plurality of jaw guide groove (2a) in the workpiece insertion hole (h) The formed cylindrical chuck housing 2, a plurality of jaw members (3) inserted into the jaw guide groove (2a) and moved in the center direction, and pipe-like seated on the inner diameter of the workpiece insertion hole (h) It consists of a seating member (4) and a wedge plunger (5) connected to an external hydraulic cylinder at the rear of the chuck housing (2) and connected to the jaw member (3).

At this time, the contact surface of the wedge flanger (5) and the encounter member 3 is formed as an inclined surface, when the wedge flanger (5) is moved by the operation of the hydraulic cylinder the jaw member (3) is the chuck It is possible to move in the direction of the center of the housing (2).

Recently, a custom chuck for mounting and processing only a workpiece having a predetermined diameter or length has been widely used, and the custom chuck has a plurality of pipe-shaped seating members 4 according to a predetermined diameter or length to prepare the same standard. To be able to produce large quantities of workpieces.

However, the conventional hydraulic chuck having the structure as described above should be accompanied by the task of replacing the mounting member 4 for each situation according to the various workpieces produced in a plurality of standards, which is according to the specifications of the product The work of replacing and installing (4) was very inconvenient, and in recent years, there has been a problem of falling behind the times of changing to the fully automated process.

In addition, the conventional hydraulic chuck due to the specific manufacturing of the seating member (4) to increase the production cost of the product due to the unnecessary unit price increase caused by the mass production of the seating member (4) in accordance with various specifications There was a problem.

The present invention was created to solve the problems of the prior art as described above, and an object of the present invention is to provide a length adjusting stop mechanism provided with a stop rod part moving in an axial direction at the center of a hydraulic chuck to insert a workpiece to be processed. Easily selectable, easy to visually check the insertion length of the workpiece to be inserted by forming the dimension check part in the length adjustment stop mechanism, and equipped with a closed O-ring with elastic force in the length adjustment stop mechanism for the hydraulic The present invention provides a workpiece length adjusting stop mechanism for a machine tool, which prevents oil from penetrating and includes a seating hole enlarged than the stop rod portion at one end of the stop rod portion to easily seat a pipe-shaped workpiece.

Workpiece length adjustment stop mechanism for a machine tool according to the present invention for achieving the above object is provided with a hydraulic chuck having a perforated portion formed in the center so that the workpiece to be machined in the machine tool is fixed, the workpiece is mounted on the perforated portion of the hydraulic chuck A workpiece length adjusting stop mechanism inserted into a center portion, wherein a plurality of fastening holes are formed on one surface of the perforated portion; A flange having an outer circumference of one end extending outward to be fastened with the fastening hole and a bolt, a flange hole having a plurality of perforated holes on one surface of the flange to communicate with the fastening hole, and a pipe inserted into the perforation part from one side of the flange A connecting flange portion formed of an extension pipe of a shape; A plurality of connection extension parts connected to one end of the connection flange part and formed in a pipe shape; A rod-shaped extension finishing part connected to one end of the connection extension part and having a rod feed hole formed at a center thereof; And a rod-shaped stop rod portion inserted into the rod transfer hole of the extended finish portion and moved in the axial direction.

A flange screw portion is formed at an inner circumference of the connection flange portion, and an outer extension screw is formed at an outer circumference of the connection extension portion so as to be engaged with the flange screw portion.

An inner extension screw is formed at an inner circumference of the connection extension part, and a one end connection part is formed at the outer circumference so as to be coupled to the inner extension screw.

A fixed bolt hole is formed on an outer circumferential surface of the extended finish portion to penetrate the rod feed hole; The fixed bolt hole is characterized in that the tanned fixing bolt for pressing and fixing the outer peripheral surface of the stop rod portion inserted into the rod transfer hole.

The outer periphery of the connection extension portion is formed with a plurality of sealing ring grooves recessed inwardly to block the penetration of the fluid, the sealing ring groove is characterized in that the sealing O-ring having an elastic force is provided.

The outer circumferential surface of the stop rod portion is characterized in that the dimension check portion is formed in the axial center direction so that the length of the workpiece is inserted visually confirmed.

One end of the stop rod portion is characterized in that the cylindrical workpiece seat is provided with a larger than the diameter of the stop rod portion to facilitate contact with one side of the workpiece.

At one end of the stop rod part, a seating connection screw is formed on the outer circumference so that the workpiece seating hole is connected, and a seating hole connecting hole formed with a screw on the inner circumference is fastened to the seating hole connecting screw at the center of the workpiece seating hole. It is characterized by.

Thus, the workpiece length adjustment stop mechanism for machine tools according to the present invention has the following effects.

First, by having a length adjusting stop mechanism provided with a stop rod that is fixed after being moved in the axial direction, to stop and fix the insertion length of the workpiece to be processed constantly, when processing the same product in large quantities, very convenient and quick You can set

Second, by providing a plurality of connecting extensions that are screwed into the inside of the adjustable length stop mechanism, it can cope with the length of various workpieces can greatly improve the width of the work performance capacity,

Third, by forming the dimensional check portion formed in the axial center direction on one surface of the stop rod portion provided in the length adjustment stop mechanism, the position where one end of the workpiece is in contact with the one end of the fixed stop rod portion can be visually confirmed to process the workpiece. You can easily select the length to work conveniently,

Fourth, by forming a groove recessed inwardly on the outer periphery of the connecting extension portion and having a sealing O-ring having elastic force in the groove, the hydraulic oil used for the hydraulic chuck penetrates into the outer periphery of the length adjusting stopper and finally the hydraulic It can prevent the discharge to the front of the chuck to improve the cleanliness and sealing of the product,

Fifth, when a cylindrical workpiece seat having a larger diameter than the diameter of the stop rod is provided at one end of the stop rod, a pipe-shaped workpiece is formed on one surface of the workpiece seat when machining a pipe-shaped workpiece having an inner diameter larger than that of the stop rod. It can be easily seated there is an effect that can process a variety of workpieces.

1 is an exploded perspective view showing the structure of a conventional hydraulic chuck,
2 is an installation cross-sectional view showing a state of use of the conventional hydraulic chuck,
3 is an exploded perspective view showing the structure of a hydraulic chuck according to the present invention,
Figure 4 is an installation cross-sectional view showing a state of use of the hydraulic chuck according to the present invention,
Figure 5 is a partial cutaway view showing a length adjustment stop mechanism according to the present invention,
Figure 6 is an exploded perspective view showing a length adjustment stop mechanism according to the present invention,
Figure 7 is an installation cross-sectional view showing the action of the length adjustment stop mechanism according to the invention,
Figure 8 is a cross-sectional view showing another embodiment of the adjustable length stop mechanism according to the present invention.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Workpiece length adjustment stop mechanism for a machine tool according to the present invention is provided with a hydraulic chuck (C) formed with a punching portion (C1) in the center so that the workpiece (W) to be processed in the machine tool is fixed, of the hydraulic chuck (C) A plurality of fastening holes C2 are formed on one surface of the perforated part C1 as shown in FIGS. 3 to 5 as cylindrical accessories seated in the perforated part C1 to insert the workpiece W into the center part. Become; A plurality of flanges 11 having one end of the outer periphery extending outward to be fastened by the fastening hole C2 and the bolt B, and a plurality of holes are drilled on one surface of the flange 11 so as to communicate with the fastening hole C2. A connection flange part 10 formed of a flange hole 12 and a pipe-shaped extension pipe 13 inserted into an inner side of the punching part C1 from one side of the flange 11; A plurality of connection extension parts 20 connected to one end of the connection flange part 10 and formed in a pipe shape; A rod-shaped extension closing part 30 connected to one end of the connection extension part 20 and having a rod transfer hole 31 formed at a center thereof; The rod-shaped stop rod portion 40 is inserted into the rod feed hole 31 of the extended finish portion 30 and moved in the axial direction.

On the other hand, it is preferable that a stepped flange inserting portion (not shown) is formed on one surface of the perforated portion C1 so that the flange 11 of the connection flange portion 10 is inserted into and fastened inward.

6, a flange screw portion 13a is formed at an inner circumference of the connection flange portion 10, and an outer side of the connection extension portion 20 is coupled to the flange screw portion 13a at one side of the connection extension portion 20. The outer extension screw 21 is formed in the peripheral edge.

In addition, an inner extension screw 22 is formed at an inner circumference of the connection extension part 20, and one end portion of the extension finish part 30 is closed at an outer circumference so as to be engaged with the inner extension screw 22. 32 is formed.

On the other hand, the position where the flange screw portion 13a and the outer extension screw 21 are formed, that is, the position of the outer or inner circumference may be interchanged, and the inner extension screw 22 and the finish connection screw 32 are formed. It is preferable that the positions are also formed to be interchangeable.

And, on the outer circumferential surface of the extended finish portion 30 is fixed bolt hole 33 is formed to penetrate the rod transfer hole 31 as shown in FIG. The fixing bolt hole 33 is provided with a tanned fixing bolt 34 for pressing and fixing the outer circumferential surface of the stop rod portion 40 inserted into the rod transfer hole 31.

5 to 6, a plurality of sealing ring grooves 23 recessed inwardly are formed at the outer circumference of the connection extension part 20 to block the penetration of the fluid, and the sealing ring groove 23 is formed. It is provided with a sealing O-ring 24 having an elastic force.

 And, on the outer circumferential surface of the stop rod portion 40, the dimensional confirmation portion 41 is formed in the axial direction so that the length of the workpiece W inserted is visually confirmed.

Here, one end of the stop rod portion 40 as shown in Figure 8 to facilitate the contact of one side of the workpiece (W) cylindrical workpiece seat openings larger than the diameter of the stop rod portion 40 42 is provided.

And, one end of the stop rod portion 40 is formed with a seating hole connecting screw (40a) on the outer circumference so that the workpiece seating hole 42 is connected, the seating hole in the center of the workpiece seating hole 42 A mounting hole connecting hole 42a having a screw formed on the inner circumference thereof is fastened to be coupled to the connecting screw 40a.

Looking at the action of the workpiece length adjustment stop mechanism for a machine tool consisting of the above configuration as follows.

Workpiece length adjustment stop mechanism for a machine tool according to the present invention is provided with a hydraulic chuck (C) formed with a perforation (C1) to fix the workpiece (W) to be processed in the machine tool in the axial direction in the hydraulic chuck (C) By having a stopper mechanism 1 is provided with a stop rod portion 40 is fixed after moving, the hydraulic chuck to stop the insertion length of the workpiece (W) to be inserted through the drilling portion (C1) constantly By fixing with a plurality of jaws (JW) provided in (C) it is possible to set the workpiece (W) very convenient and quickly when processing the same product in large quantities.

That is, the connecting flange 10, which is connected through the hydraulic chuck (C) and bolted on one side, and a plurality of connecting extension parts 20 which are screwed together at one end of the connecting flange 10 As a result, the number of the plurality of connection extensions 20 may be variably adopted depending on the length of the work W to correspond to the work W of various lengths.

Then, as shown in Figure 7 forms an extension portion 30 for sealing one end of the connecting extension portion 20, the rod-shaped penetrating the center of the extension portion 30 and moved in the axial direction By providing the stop rod portion 40, the machining length L of the workpiece W to be inserted can be arbitrarily selected.

Here, the arbitrarily selecting the processing length (L) of the workpiece (W) to be inserted is visually confirming the dimensional confirmation portion 41 formed in the axial center direction on one surface of the stop rod portion 40 and the stop rod By fixing the portion 40, one end of the workpiece W to be inserted comes into contact with one end of the fixed stop rod portion 40 so that the machining length L of the workpiece W can be conveniently selected. .

In addition, by continuing to use the value of the stop rod portion 40 initially set in a number of machining operations it is possible to perform a large number of machining operations very conveniently.

On the other hand, fixing the stop rod portion 40 is provided with a tanned fixing bolt 34 so as not to protrude on the outer circumferential surface of the extended finish portion 30, safety when the length adjustment stop mechanism (1) is rotated Improved, it is possible to conveniently fix the stop rod portion 40 by the tanned fixing bolt 34.

In addition, the hydraulic chuck (C) is provided by a plurality of sealing ring grooves 23 recessed inwardly on the outer circumference of the connecting extension part 20 and a sealing O-ring 24 having elastic force in the sealing ring groove 23. It is possible to prevent the hydraulic oil (not shown) used in the penetration into the outer periphery of the length adjustment stop mechanism (1) to be discharged to the front of the hydraulic chuck (C).

Here, as shown in FIG. 8, a cylindrical work seat 42 is provided at one end of the stop rod 40 to have a cylindrical workpiece seat 42 enlarged than the diameter of the stop rod 40, thereby stopping the stop rod 40. When the pipe-shaped workpiece (W) having an inner diameter larger than the diameter of) is used, the pipe-shaped workpiece (W) can be easily mounted on one surface of the workpiece seat (42). It can respond to.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

Description of the Related Art
1: Length adjusting stop 10: Connection flange
11: flange 12: flange ball
13: extension pipe 13a: flange thread
20: extension part 21: outer extension screw
22: internal extension screw 23: sealing ring groove
24: sealed O-ring 30: extended finish
31: Rod feed 32: Finish connection screw
33: fixed bolt ball 34: tanned bolt
40: stop rod part 40a: seat connection screw
41: dimension check part 42: workpiece seat
42a: seat connector W: workpiece
C: Hydraulic chuck C1: Drilling section
C2: Fastener B: Bolt

Claims (8)

A hydraulic chuck C having a perforated portion C1 is provided at a central portion thereof so that the workpiece W processed in the machine tool is fixed. The hydraulic chuck C is mounted on the perforated portion C1 of the hydraulic chuck C. In the length adjusting stopper 1 inserted into the center part,
A plurality of fastening holes C2 are formed on one surface of the perforation part C1;
A plurality of flanges 11 having an outer circumference of one end extending outward to be fastened by the fastening hole C2 and the bolt B, and one surface of the flange 11 to be in communication with the fastening hole C2; A connection flange part 10 formed of a flange hole 12 and a pipe-shaped extension pipe 13 inserted into an inner side of the punching part C1 from one side of the flange 11;
A plurality of connection extension parts 20 connected to one end of the connection flange part 10 and formed in a pipe shape;
A rod-shaped extension closing part 30 connected to one end of the connection extension part 20 and having a rod transfer hole 31 formed at a center thereof;
A rod-shaped stop rod part 40 inserted into the rod feed hole 31 of the extension finish part 30 and moved in the axial direction;
A flange screw portion 13a is formed at an inner circumference of the connection flange portion 10, and an outer extension screw 21 is formed at an outer circumference of the outer edge so as to be engaged with the flange screw portion 13a at one side of the connection extension portion 20. Workpiece length adjustment stop mechanism for machine tools, characterized in that formed. delete The method of claim 1,
An inner extension screw 22 is formed at the inner circumference of the connection extension part 20, and one end of the extension finish part 30 is closed at the outer circumference so as to be engaged with the inner extension screw 22. Workpiece length adjustment stop mechanism for machine tools, characterized in that formed. The method of claim 1,
A fixed bolt hole 33 is formed on the outer circumferential surface of the extension finish part 30 to penetrate the rod transfer hole 31;
The fixed bolt hole 33 is a length adjustment stop of the workpiece for the machine tool, characterized in that provided with a tanned fixing bolt 34 for pressing and fixing the outer circumferential surface of the stop rod portion 40 inserted into the rod transfer hole (31) Instrument. The method of claim 1,
The outer periphery of the connection extension portion 20 is formed with a plurality of sealing ring grooves 23 concaved inward to block the penetration of the fluid, the sealing ring groove 23 is provided with a sealing O-ring 24 having an elastic force Workpiece length adjustment stop mechanism for a machine tool, characterized in that. The method of claim 1,
Workpiece length adjustment stop mechanism for a machine tool, characterized in that the outer circumferential surface of the stop rod portion 40 is formed with a dimensional confirmation portion 41 in the axial direction so that the length of the workpiece (W) is inserted into the naked eye. The method of claim 1,
One end of the stop rod portion 40 is a machine tool, characterized in that provided with a cylindrical workpiece seat 42 is larger than the diameter of the stop rod portion 40 to facilitate contact with the workpiece (W) Workpiece stopper. The method of claim 7, wherein
At one end of the stop rod portion 40, a seating connection screw 40a is formed at an outer circumference such that the work seating port 42 is connected, and the seating hole connecting screw is formed at the center of the work seating port 42. Workpiece length adjustment stop mechanism for a machine tool, characterized in that the mounting hole connecting hole (42a) is formed on the inner periphery so as to engage with the (40a).

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