KR20160074941A

KR20160074941A - Workpiece processing tool of milling machine

Info

Publication number: KR20160074941A
Application number: KR1020140184239A
Authority: KR
Inventors: 황옥상
Original assignee: 황옥상
Priority date: 2014-12-19
Filing date: 2014-12-19
Publication date: 2016-06-29

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixture for workpiece processing of a milling machine mounted on a bed constituting a conventional milling machine and configured to be used for more efficiently processing inclined inner and outer surfaces, .
The present invention relates to a fixture for machining a workpiece of a milling machine for use in machining a cutting portion having an angle of inclination in a workpiece, comprising a base mounted and fixed on a bed of a milling machine, And a curved surface plate formed on one side of the upper end of the body, a hemispherical tilt block which is installed so as to be in close contact with the curved surface plate of the receiving block and which is pivotable and has a planar portion and a circular arc portion, And an operating unit is provided in the housing formed at the center of the front portion of the supporting block so that the angle of the plane portion can be adjusted by activating the arc portion of the rotating block.

Description

{WORKPIECE PROCESSING TOOL OF MILLING MACHINE}

The present invention relates to a milling machine which is mounted on a bed constituting a conventional milling machine and is constructed so as to be used for more efficiently machining inclined inner and outer surfaces, holes, grooves, etc. with respect to a large workpiece To a fixture for machining a workpiece.

A generally used milling machine is a milling machine in which a workpiece mounted on a bed is linearly moved (linearly moved) up, down, left, right, back and forth in a state in which a cutter having a plurality of cutting edges is rotated, It is a machine tool capable of various machining.

In order to process a workpiece in such a milling machine, it is necessary to firmly fix the workpiece by using a vise so as to support the force generated between the cutter and the workpiece and prevent the workpiece from moving.

A conventional vise for a milling machine has a workpiece placed between fixed and moving jaws installed on the main body so that a cutting force can be applied to the surface of the workpiece by applying a compressive force to the surface of the workpiece. And horizontally moves in a direction in which the work is positioned.

When a workpiece is to be cut at an angle to the inside, the outside, the hole, the groove or the like at a predetermined angle, the workpiece is fixed to the vice while the angle of the workpiece is adjusted by a separate jig such as a V- It is universal.

With regard to a facility for fixing a workpiece in such a milling machine, for example, in Japanese Patent Registration No. 0827795, a milling machine in which a spindle device is formed in a vertical phase, a workpiece is fixed to the upper surface of the table by vacuum pressure A work chuck of a milling machine is disclosed in which a plan view and a origin of a workpiece are maintained more accurately and the attachment / detachment of a workpiece can be automated through vacuum control, and a work chuck disclosed in Japanese Patent No. 1244944 The present invention relates to a jig for fixing a workpiece, which is capable of quickly and firmly fixing a workpiece whose outer circumferential surface is not a flat plate through a plurality of fixing members. However, these arrangements require a separate jig or the like .

In addition, the technique disclosed in Japanese Laid-Open Patent Publication No. 2013-0017499 has a structure in which a rotary jaw that can be rotated and fixed at the same angle as a workpiece is installed in a fixed jaw and a movable jaw is rotatable, Open No. 2013-0034075 discloses that a rotary jaw having a structure capable of rotating at the same angle as a workpiece and maintaining a rotated angle is installed in a fixed jaw so that the angle of the workpiece And the work is fixed by fixing the work in the adjusted state. In the publication No. 2014-0133017, in order to machine the workpiece fixed by the fixed body in a state of being placed on the upper surface of the fixed base, It is possible to rotate the fixed base without directly turning it, Jalsak will have to be processed.

In the case of such a technique, since the moving jaw for pressurizing the workpiece is configured depending on the screw axis, it is difficult to uniformly fix the workpiece having a surface irregularity, and the workpiece is separated from the vise during operation, Or cause a defect in the workpiece due to a drop in precision.

Moreover, in order to cut a workpiece having a circular cross section, a workpiece must be fixed using a jig having a groove on one side, such as a separate V-shaped jig, so that the number of workpieces is increased and it is easy to adjust the position of the workpiece There is also the problem that it can not.

Further, when it is desired to process sloped faces, holes, grooves or the like on a workpiece for molding a mold for molding a relatively bulky product such as an industrial or automobile part, a separate fixing clamp mounted on the bed of the milling machine It is difficult to adjust the angle with respect to a heavy object because it has to be fixed using a protractor or the like.

Korean Registered Patent No. 0827795 (Registered on April 29, 2008) Name of invention: Workpiece chuck of milling machine. Korea Registered Patent No. 1244944 (Registered on March 13, 2013) Name of invention: Jig for fixing workpiece. Korean Patent Laid-Open Publication No. 2013-0017499 (published on March 20, 2013) Title of the invention: Vice for milling machine capable of angle adjustment. Korean Patent Laid-Open Publication No. 2013-0034075 (Published Apr. 20, 2013) Title of invention: Vice for milling machine capable of angle adjustment. Korean Patent Publication No. 2014-0133017 (Registered Nov. 19, 2014) Name of invention: Fixed base rotating device for workpiece for cutting.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide an apparatus and a method for controlling an angle of a workpiece mounted on a table by a handle, The present invention provides a fixture for a workpiece machining of a milling machine capable of easily processing a groove or the like.

In order to accomplish the above object, the present invention provides a fixture for machining a workpiece of a milling machine for use in machining a cutting portion having an inclined angle in a workpiece, comprising: a base mounted and fixed on a bed of a milling machine; And a curved surface plate formed on one side of the upper end of the body, a hemispherical rotating block which is installed so as to be in close contact with the curved surface plate of the supporting block and which is pivotable and is composed of a planar portion and a circular arc portion, And a table for holding a workpiece mounted on a flat portion of the block. An operating unit is provided in the housing formed at the center of the front portion of the receiving block so that the angle of the plane portion can be adjusted as the arc portion of the rotating block is operated Respectively.

In addition, the curved surface plate of the bearing block is configured such that a bolt is mounted and is fastened to a binding nut moving along a T-shaped slot formed in a circular arc portion of the rotating block. The operating unit includes a handle and a rotating shaft, And the worm is engaged with the worm wheel formed at the center of the circular arc portion of the rotating block.

Since the angle of the workpiece can be arbitrarily adjusted in the table mounted on the bed of the milling machine, the present invention having the above-described features can form not only inclined inner and outer surfaces of the workpiece but also shapes such as holes and grooves So that the work efficiency of the workpiece is increased and the productivity can be greatly improved.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of a fixing jig for machining a workpiece of a milling machine according to the present invention,
Fig. 2 is a perspective view of assembled components of Fig. 1,
Fig. 3 is a bottom perspective view of Fig. 2,
FIGS. 4A and 4B are a front and rear view of the fixture,
5A and 5B are side views of the fixture and operation states thereof,
Fig. 6A is a side view of the base block,
6B is a front view of the curved plate in Fig. 6A, Fig.
Figs. 7A to 7C are plan views, front views and side views of the rotation block,
8A is a sectional configuration view showing the installation state of the operation unit,
8B is a cross-sectional view showing the binding state of the supporting block and the rotating unit.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

Prior to the description of the present invention, the specific structures and functional explanations described below are only illustrative to explain the embodiments according to the concept of the present invention, and can not be construed as limiting, and various modifications may be made .

1 to 8A and 8B are diagrams for explaining a fixture for machining a workpiece of a milling machine according to the present invention, and are mainly used for machining a plane, a hole, a groove or the like inclined at a predetermined angle in a large workpiece And is mounted on a bed of a milling machine by using a chain block or the like installed in a workplace.

As shown in the drawings, the present invention is a floor-type base 10, a support block 20 that is seated on the base 10, A hemispherical pivot block 30 and a flat table 40 whose angle is adjustable by the pivot block 30.

In addition, the support block 20 further includes an operation unit 50 for arbitrarily adjusting the angle of the rotation block 30 within a range of 90 degrees from the horizontal to the vertical direction.

The flat base 10 has a seating surface 12 layered by the step 11 and a pair of positioning pieces 13a and 13b are mounted on one side thereof and a bed B, they can be bound together by a conventional fixing means such as an electromagnet or a clamp (not shown).

The supporting block 20 is composed of a bottom plate 21 which is seated and fastened to the base 10 and a curved plate 22 formed on one side of the upper end of the body, And a housing 25 having inclined surfaces 24a including the reinforcing pieces 23a and 23b.

The hemispherical pivot block 30 is composed of a flat surface portion 31, an arcuate portion 32 and a hollow portion 33. The arcuate portion 32 is connected to the curved surface plate 22 of the receiving block 20, So as to be pivotable through the operation unit (50).

That is, a protruded surface 34a is formed at the center of the arc portion 32 of the pivot block 30 and a worm wheel 35 is formed in the protruded surface 34a. T-shaped slots 36a are arranged side by side at predetermined intervals on both sides thereof, and a binding nut 37 is slidably inserted in these slots 36a.

The support block 20 includes a plurality of bolts 26a fastened to the bottom plate 21 and fixed to the base 10 and a bolt 26b mounted to one side of the curved plate 22 of the support block 20, Are fastened to the fastening nuts (37) interposed in the slots (36a) of the pivot block (30) and assembled together.

Also, a protractor 38 is attached to one side of the side surface of the pivot block 30 so that the angle conversion state of the pivot block 30 can be easily visually confirmed.

The upper surface of the flat plate 40 is formed with T-shaped transverse grooves 41 and longitudinal grooves 42 intersecting with each other and a lifting bolt 43 is mounted on both sides of the T- And is disposed on the flat surface portion 31 of the pivot block 30 to fix the workpiece.

In the case of the operation unit 50, the angle of the table 40 can be arbitrarily adjusted by operating the pivot block 30 in the housing 25 located at the center of the front portion of the receiving block 20 .

That is, the operation unit 50 includes a handle 51 that is freely detachable and attachable, and a rotary shaft 52. The operation unit 50 is integrally formed at the front end of the rotary shaft 52, And a worm 53 which is exposed to the side of the opening 28 at one side of the groove 27 formed in the worm wheel 22. The worm 53 is fixed to the worm wheel 35 formed at the center of the arc portion 32 of the rotating block 30. [ As shown in FIG.

A disk-shaped display panel 29 having a scale engraved is mounted on the inclined surface 24a formed in the housing 25 of the support block 20 so that the operator can easily recognize the inclination angle of the table 40 according to whether the handle 51 is operated or not .

The present invention constructed as described above is used for efficiently machining a sloped surface, a hole, a groove, or the like in a relatively bulky work such as a mold for producing general industry or automotive parts.

Since the jig itself in the present invention is a heavy material, the base 10 is mounted firmly on the bed B of the milling machine using a chain block installed in the workplace, using a fixing means such as a clamp .

Thereafter, the workpiece is fixed on the table 40. In this case, a usual fixing means such as a fixing jig, a clamp, a vice, or the like used in a milling machine can be used.

At this time, the operation unit 50 mounted on the front portion of the support block 20 is actuated, and the workpiece is moved to the position .

That is, since the support block 20 and the pivot block 30 are fastened to each other by the bolts 26b and the binding nuts 37, The handle 51 is inserted into the rotary shaft 52 constituting the operation unit 50 after the rotary block 30 is allowed to flow by slightly loosening the rotary shaft 26b to the front end of the rotary shaft 52 The rotating block 30 can be turned by the worm wheel 35 engaged with the worm 53 while the formed worm 53 rotates.

In the case of the handle 51, it is preferable to apply a normal ratchet method instead of a rotation type in order to avoid mutual interference with the table 40.

The rotary block 30 is mounted on the side surface of the disk-shaped display panel 29 or the rotary block 30 mounted on the rotary shaft 52 while rotating in the curved plate 22 of the supporting block 20 in a horizontal state It is possible to set the position according to a desired angle through the protruding protractor 38. The pivot block 30 can be completely fixed according to the tightening of the bolt 26b.

In this state, machining of the inner and outer surfaces, holes, grooves, etc. of the work can be easily performed by using a cutting tool mounted on the main shaft of a milling machine (not shown).

As described above, since the angle of the workpiece can be arbitrarily adjusted in the table mounted on the bed of the milling machine by the fixture for workpiece machining of the milling machine according to the present invention, the inclined inner and outer surfaces of the workpiece, It is possible to shape a groove or the like and it becomes very easy to work and the productivity of the workpiece can be increased and the productivity can be greatly improved.

Although the present invention has been fully described in connection with the preferred embodiments thereof with reference to the accompanying drawings, it is to be understood that the present invention is not limited thereto. It is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

10: Base 11: Step
12: seat surface 13a, 13b:
20: support block 21: bottom plate
22: curved plate 23a, 23b:
24a: slope 25: housing
26a, 26b: bolt 27: groove
28: opening 29: disk-shaped display panel
30: rotation block 31: plane portion
32: arc part 33: hollow part
34a: protruding surface 35: worm wheel
36a: Slot 37: Coupling nut
38: protractor 40: table
41: horizontal groove 42: vertical groove
43: lifting bolt 50: operating unit
51: handle 52:
53: Worm

Claims

A fixture for machining a workpiece of a milling machine for use in machining a cutting area having an inclination angle in a workpiece,
A base 10 mounted and fixed on a bed of a milling machine,
A support block 20 having a bottom plate 21 seated on the base and fastened thereto and a curved plate 22 formed on one side of the upper end of the body,
A hemispherical turning block 30 which is installed so as to be in close contact with the curved surface plate of the bearing block so as to be rotatable and which is composed of a flat surface portion 31 and a circular arc portion 32,
And a table (40) mounted on a plane portion of the rotating block for holding a workpiece,
An operating unit 50 is provided in the housing 25 formed at the center of the front portion of the support block 20 to adjust the angle of the plane portion 31 as the arc portion 32 of the rotation block 30 is operated And the workpiece is fixed to the workpiece.

The slide block (20) according to claim 1, wherein a bolt (26b) is mounted on the curved plate (22) of the support block (20) and is moved along a T-shaped slot (36a) formed in the arc portion (32) of the pivot block And is fastened to the binding nut (37).

The operation unit (50) according to claim 1, wherein the operation unit (50) comprises a worm (53) including a handle (51) and a rotary shaft (52) and integrally formed at a distal end of the rotary shaft And the worm is engaged with a worm wheel (35) formed at the center of the circular arc portion (32) of the rotating block (30).