KR100464558B1 - Cutting apparatus - Google Patents

Abstract

It is to provide a cutting device that can greatly reduce the labor and time for the worker when performing multi-face machining on the workpiece.

The workpiece 2 is placed on the flat portion 13 of the jig 12, 12 mounted on the workpiece table 3, and the second positioning of the workpiece pressing means 5 is directed toward the workpiece dividing means 4. The holder 10 is moved to the hydraulic cylinder 9. At this time, the horizontal projection 20 of the first and second positioning holders 8 and 10 while being guided to the tapered surfaces of the horizontal fitting groove 15 and the vertical fitting groove 16 of the workpiece 2 and The vertical protrusions 21 are advanced, respectively, and the front end faces of the horizontal protrusions 20 and the vertical protrusions 21 do not contact the surfaces forming the horizontal fitting grooves 15 and the vertical fitting grooves 16, and are horizontally aligned. The surfaces forming the trapezoidal quadrilaterals of the protrusions 20 and the longitudinal projections 21 are in contact with the tapered surfaces of the horizontal fitting groove 15 and the vertical fitting groove 16 to ensure positioning. The precision of is well fitted. Thereafter, the jig 12, 12 is removed from the work table 3, and one surface of the gripped work 2 is cut by the work tool 1.

Description

Cutting device {CUTTING APPARATUS}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting device that performs a multi-face machining on a workpiece, and more particularly, a cutting device that performs processing on each surface of a workpiece having a footnote shape.

Conventionally, in order to perform multi-face machining on a workpiece, when a jig is placed on a workpiece table, the workpiece is fixed, and the machining is performed on one surface by a machining tool. As we did, we switched stages.

However, since the number of faces to be machined must be changed according to the number of surfaces to be machined, and the error generated when the workpiece is set on the jig is directly affected on the precision of processing to the workpiece, considerable labor and time is required for the worker. Needed.

In view of the above, it is an object of the present invention to provide a cutting device that can significantly reduce the labor and time for an operator when performing multi-face machining on a workpiece.

1 is a front view of a cutting device in which part is broken.

2 is a perspective view of a cutting device.

Fig. 3 is a front view of the cutting device showing a state immediately before the workpiece is gripped by the workpiece dividing means and the workpiece pressing means using the workpiece set fixture.

4 is a perspective view of the workpiece set fixture.

5 is a perspective view of the workpiece and the second positioning holder.

6 is a perspective view of a state in which the workpiece is gripped by the first and second positioning holders.

FIG. 7 is an enlarged view of circle A of FIG. 6.

8 is a perspective view of a state in which a workpiece is gripped by the first and second positioning holders of the second embodiment.

Fig. 9 is a partially enlarged cross-sectional view of the circle B of Fig. 8 showing the gripping operation of the workpiece by the first and second positioning holders of the second embodiment.

10 is a perspective view of a second positioning holder of the second embodiment.

It is a partial view of the state which pressed the workpiece supported by the support part by the press piece.

<Description of the symbols for the main parts of the drawings>

1. Machining Tools 2. Workpiece

3. Workpiece table 4. Workpiece dividing means

5. Work piece pressing means 8. First positioning holder

10. 2nd positioning holder 15. Horizontal fitting groove

16. Vertical fitting groove 20. Horizontal protrusion

21. Longitudinal projection 25.

26. Concave

For this reason, the invention which concerns on a 1st cutting device is made into the processing center which can move to a plane direction and an up-down direction, and performs a cutting process to a workpiece by rotation, and an axis line orthogonal to the rotation axis of the processing tool as a rotation center axis. A workpiece dividing means having a first positioning holder for gripping one side of the workpiece by dividing the workpiece dividing axis by a predetermined angle, and a second position provided opposite the workpiece dividing axis and gripping the other side of the workpiece And a workpiece pressing means for holding and holding the workpiece on the workpiece dividing means with a crystal holder.

Further, in the first aspect of the present invention, in the first aspect, both side surfaces of the workpiece have a predetermined length, and at least one of the horizontal fitting grooves and the lengthwise vertical contact with the other surface as the opposite surface enters the other side is entered. Forming a fitting groove, and when the workpiece pressing means grips the workpiece on the workpiece dividing means, the opposing faces of the first and second positioning holders have the horizontal fitting groove and the vertical fitting groove. It is characterized by forming a horizontal projection and a vertical projection to be fitted while being guided.

Further, in the first invention, in the first invention, when the workpiece pressing means grips the workpiece on the workpiece dividing means, the side faces of the workpiece are opposite to the surfaces of the first and second positioning holders. It is characterized by forming a recessed part around the some encroaching part which penetrates into this, and the encroaching part.

In a fourth aspect of the invention, in the first to third aspects of the invention, a hydraulic cylinder is used as the workpiece pressing means.

Embodiment

EMBODIMENT OF THE INVENTION Hereinafter, 1st Embodiment of this invention is described based on FIG. First, referring to FIG. 1 and FIG. 2, 1 is a machining tool for performing a cutting process on a foot-shaped workpiece 2 in a cutting device, and includes an X-axis drive motor, a Y-axis drive motor, and Z. It is movable in the planar direction and up and down direction by the axial drive motor (above, not shown), and can be rotated by the θ axis drive motor (not shown) as the point of the vertical axis, and the workpiece Cutting is performed on each side of (2).

3 is a planar workpiece table having an upper surface as a plane, and the workpiece table 3 is provided with a predetermined interval so that the workpiece dividing means 4 and the workpiece pressing means 5 face each other, for example, a bolt 6. The workpiece pressing means 5 can slide and move along the workpiece table 3, but fixed at a predetermined position in accordance with the size of the workpiece 2 as described above.

The workpiece dividing means (4) divides the workpiece dividing shaft (7) having an axis line orthogonal to the axis of rotation of the machining tool (1) as the center of rotation at a predetermined angle by programmed numerical control. The front end of the shaft 7 has a first positioning holder 8 for holding one side of the workpiece 2.

In addition, the workpiece pressing means 5 has a rotatable rod 9A of the hydraulic cylinder 9 provided on an extension line thereof facing the workpiece divided shaft 7 and controlled to move from side to side. The front end has a second positioning holder 10 which grips the other side of the workpiece 2. In addition, an air cylinder may be used instead of the hydraulic cylinder 9.

In Fig. 3 and Fig. 4, 11 is a workpiece set jig necessary for holding and holding both sides of the workpiece 2 by the workpiece dividing means 4 and the workpiece pressing means 5, and a pair of jig 12 and 12 It is composed of Each jig | tool 12 has the flat part 13, and the joining part 14 which has several steps is provided in the intermediate part of the flat part 13, and protrudes. By using a pair, the height level can be adjusted by joining the steps of the joining portions 14 and 14 to each other at a predetermined position. That is, the flat part 13 of one jig | tool 12 is mounted to the said workpiece | work table 3, and the steps of the joining parts 14 and 14 are joined together at a predetermined position, and then the other jig ( It is necessary to mount the workpiece 2 on the planar portion 13 of 12) so as to hold both sides of the workpiece 2 having a considerable weight by the workpiece dividing means 4 and the workpiece pressing means 5. It is.

Next, as shown in Fig. 5, the two side surfaces of the workpiece 2 are provided with one row of horizontal fitting grooves 15 extending to both sides of the side surfaces and a predetermined interval so as to traverse the horizontal fitting grooves 15. At the same time, a plurality of longitudinal fitting grooves 16 are formed, one end of which extends to the side end.

The cross-sectional shapes of these horizontal fitting grooves 15 and vertical fitting grooves 16 are trapezoidal, as shown in Fig. 7, and are formed in a tapered shape as the opposite faces are closer to each other inwardly. The opening area in front is wider, and the opening area becomes narrower toward the inside.

In addition, the first and second positioning holders (8) and (10) of the workpiece dividing means (4) and the workpiece pressing means (5) when the workpiece (2) is pressure-held, the horizontal fitting groove (15) And a plurality of horizontal protrusions 20 and vertical protrusions 21 to be fitted while being guided to the tapered surface of the vertical fitting groove 16.

In detail, the horizontal protrusion 20 and the vertical protrusion 21 both form a trapezoid, and the horizontal protrusion 20 and the vertical protrusion 21 are inserted into the horizontal fitting groove 15 and the vertical fitting groove 16. ), The height of these horizontal protrusions 20 and the vertical protrusions 21 is shorter than the depth of the horizontal fitting grooves 15 and the vertical fitting grooves 16, so that the horizontal protrusions 20 And the front end face (surface forming the bottom portion of the upper trapezoid) of the vertical protrusion 21 does not come into contact with the surface forming the horizontal fitting groove 15 and the vertical fitting groove 16, and is trapezoidal. The sides forming both quadrilaterals abut.

Since it comprised as mentioned above, as shown in FIG. 3, the flat part 13 of one jig | tool 12 is first mounted to the said workpiece | work table 3, and the steps of the junction part 14 and 14 are moved together. After joining to a predetermined position, the workpiece 2 is placed on the planar portion 13 of the other jig 12 so that the workpiece pressing means 5 is directed toward the workpiece dividing means 4. By moving the two positioning holder 10 to the hydraulic cylinder, both sides of the workpiece 2 having a considerable weight are sandwiched by the first and second positioning holders 8 and 10 for gripping.

At this time, the horizontal projection 20 of the first and second positioning holders 8 and 10 while being guided to the tapered surfaces of the horizontal fitting groove 15 and the vertical fitting groove 16 of the workpiece 2 and The vertical protrusions 21 are respectively advanced, and the front end faces (surfaces forming the upper surface of the trapezoid) of the horizontal protrusions 20 and the vertical protrusions 21 are the horizontal fitting grooves 15 and the vertical fitting grooves ( The surface forming the trapezoid of the horizontal protrusion 20 and the vertical protrusion 21 is not in contact with the surface forming the 16, the side of the horizontal fitting groove 15 and the vertical fitting groove 16 In contact with the tapered surface, the positioning accuracy is surely fitted.

Thereafter, the jig 12, 12 is removed from the workpiece table 3, and gripped by the workpiece dividing means 4 and the workpiece pressing means 5 by the operation of the operation switch, and the workpiece table 3 ) Is cut by one of the machining tools 1 on one surface of the workpiece 2 in a state of not contacting the workpiece. In this case, the wear of the machining tool 1 is less than that of the case where the workpiece is fixed and processed on the workpiece table 3.

When the cutting to the surface is finished, the workpiece dividing means 4 divides the workpiece dividing shaft 7 at a predetermined angle by programmed numerical control, and then, on the other surface, The cutting can be performed, and the cutting can be performed by rotating the workpiece 2 at a predetermined angle as follows. In addition, although both sides of the workpiece 2 are sandwiched by the first and second positioning holders 8 and 10, the contact surfaces to the workpiece 2 are very small, so that both sides of the workpiece 2 are machined. It can carry out and can process to all six surfaces of the workpiece | work 2 which comprises a columnar shape.

In addition, although the cross-sectional shape of the horizontal fitting groove 15 and the vertical fitting groove 16 of the workpiece | work 2 is trapezoidal, the taper may be tapered as one side enters in the opposite surface as it approaches in another. At the same time, the other side is formed at right angles to the side surface of the workpiece 2, and the opening area in front of the workpiece 2 is wider and the opening area is narrower as it goes inward. The horizontal protrusions 20 and the vertical protrusions 21 of the crystal holders 8 and 10 also have a trapezoidal cross section, and the horizontal fitting grooves 15 and the vertical fitting grooves 16 of the workpiece 2 are formed. One surface which forms a trapezoidal quadrilateral in accordance with the cross-sectional shape may be a surface perpendicular to the side surfaces of the first and second positioning holders 8 and 10, and the other surface may be an inclined surface.

Next, as shown to FIG. 8 and FIG. 10, 2nd Embodiment is described. In this embodiment, the workpiece 2 is pressed against the workpiece dividing means 4 by using the jig 11 and 11 as described above, without forming a fitting groove in the workpiece 2. When (5) is pressure-gripping, the first and second positioning holders (8) and (10) have a plurality of conical encroaching portions (25) and their encroaching portions (for entering into the side of the workpiece (2)). The concave portion 26 is formed around the periphery 25.

That is, the encroaching portion 25 has a triangular cross section, and its top portion protrudes so as to be at a position higher than the side surfaces of the first and second positioning holders 8 and 10, and at the same time, The recessed part 26 is formed around the part 25. Further, a plurality of the encroaching portion 25 and the concave portion 26 are formed at predetermined intervals, respectively.

Since it was formed in this way, when the workpiece press means 5 press-holds the workpiece | work 2 to the said workpiece | dividing means 4, the said 1st and the 1st goods are similar to the state shown to the center from the state shown to the left of FIG. The encropping portion 25 digs into the side surface of the workpiece 2 and rises by digging into it until the side surface of the two positioning holders 8 and 10 abuts against the side surface of the workpiece 2. Even if the right part 27 arises, it can escape to the said recessed part 26, and can absorb this raised part 27.

In addition, as shown in FIG. 11, before the workpiece pressing means 5 pressurizes the workpiece 2 to the workpiece dividing means 4, the first and second positioning holders 8, 10. ) May gently pressurize the workpiece 2 from above and below, but this embodiment will be described in detail below. Shear upper part which forms the support part 30 in the lower surface of the front surface of the said 1st and 2nd positioning holder 8, 10, and the encropping part 25 and the recessed part 26 in the front surface, and cut partly. By pressing with a bolt 31 to press the workpiece (2) supported by the support portion 30 from the upper side to the pressing piece 32, the workpiece pressing means (2) to the workpiece dividing means (4) When 5) is completely pressurized, do not slip.

As described above, when the workpiece pressing means 5 grips the workpiece 2 in the state in which the support portion 30 and the pressing piece 32 are not shifted in the vertical direction, the workpiece pressing means 5 is pressed upward and downward. At a pressing force far greater than the pressing force in the direction, the encroaching portion 25 is held until the sides of the first and second positioning holders 8 and 10 abut against the sides of the workpiece 2 as described above. Digging into the side of the workpiece (2).

In addition, in this embodiment, it is applicable to not only 2nd embodiment but 1st embodiment. In addition, although the pressure to hold the pressure is adjusted according to the weight of the workpiece 2, the horizontal protrusions 20 and the vertical protrusions 21 of the first and second positioning holders 8 and 10 are the workpieces. (2) is fitted into the horizontal fitting groove 15 and the vertical fitting groove 16 to press and grip the workpiece 2, or the encroachment of the first and second positioning holders (8) (10). According to the embodiment in which the part 25 presses and grips the workpiece 2 by digging into the face of the workpiece 2, the pressing force may be less than that of the state in which the workpiece 25 is fitted or not drilled, and thus, the hydraulic pressure is reduced. The small pressurization capacity of the cylinder 9 is sufficient, so that it can be manufactured at low cost.

As mentioned above, although embodiment of this invention was described, various alternative examples, correction, or a deformation | transformation are possible for those skilled in the art based on the above-mentioned description, and this invention is various substitution mentioned above in the range which does not deviate from the meaning. Yes, it includes modifications or variations.

As described above, the present invention can provide a cutting device capable of greatly shortening the labor and time for an operator when performing a multi-face machining on a workpiece.

Claims (4)

The work tool which is movable in the planar direction and the up-down direction and which cuts a workpiece to a workpiece by rotation, and the workpiece | work division axis which makes the axis of rotation the orthogonal to the axis of rotation of the said machining tool the rotation center axis | shaft by a predetermined angle Press the workpiece onto the workpiece dividing means with a workpiece dividing means having a first positioning holder for gripping a side, and a second positioning holder disposed opposite the workpiece dividing axis and gripping the other side of the workpiece Cutting device, characterized in that consisting of the workpiece pressing means for holding. The method of claim 1, Both sides of the workpiece have a predetermined length, and at least one of the opposite ones thereof is formed into a horizontal fitting groove and a vertical fitting groove that are closer to the other surface, and the workpiece is divided into the workpiece dividing means. When the workpiece pressing means is gripped, the opposite surface of the first and the second positioning holder is formed with a horizontal projection and a vertical projection to be guided to the horizontal fitting groove and the vertical fitting groove to be fitted; Cutting device. The method of claim 1, When the workpiece pressing means grips the workpiece on the workpiece dividing means, a plurality of encroaching portions penetrating into the side surfaces of the workpiece and recesses around the encropping portions are formed on opposite surfaces of the first and second positioning holders. Cutting device, characterized in that formed. The method according to any one of claims 1 to 3, And a hydraulic cylinder is used as the workpiece pressing means.