JP2600551Y2 - Work positioning device in plate processing machine - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION This invention relates to a plate-shaped work at a starting point in the X-axis direction and an origin position in the Y-axis direction in a plate processing machine such as a laser processing machine for one-axis material movement and one-axis light movement. The present invention relates to a work positioning device in a plate processing machine that performs positioning.

[0002]

2. Description of the Related Art Conventionally, for example, in a laser processing machine of one-axis material movement and one-axis light movement as a plate material processing machine, the work origin is positioned by using a locating pin when the work is applied to the material movement axis. In general, clamps are used for workpieces.

[0003]

By the way, in the above-mentioned conventional laser beam machine, when machining a workpiece larger than the maximum machining size in the material moving direction (X-axis direction), the workpiece is held by a clamp mechanism provided separately. Then, the work clamp is released, and the carriage is moved in the X-axis direction to perform gripping. However, when the end face of the work is not straight, the work is pushed by the clamp, and there is a problem that the precision of the gripping is not good.

[0004]

SUMMARY OF THE INVENTION In view of the above-mentioned problems, the present invention provides a work table supporting a work in a plate processing machine and a first locating pin for positioning an origin of the work in the X-axis direction. In a work positioning device for a plate material processing machine provided with a plurality of second locating pins for positioning the work in the Y-axis direction with respect to the upper surface of the work table, a plurality of second locate pins may be horizontally positioned below the work table. A crank for moving the plurality of second locating pins up and down is integrally provided on a rotatable rotation shaft, and a crank for moving the first locating pin up and down and the crank are linked to each other. , All of the locating pins are simultaneously protruded and retracted with respect to the upper surface of the work table by operating the rotating shaft. That.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings.

[0006] To facilitate understanding, first, the overall configuration of a laser processing machine that moves, for example, one-axis material and moves one-axis light as a plate material processing machine will be schematically described.

Referring to FIG. 8, the laser processing machine 1 is provided with an upper horizontal arm 5 extending in the horizontal direction and extending from an apparatus main body 3 having a laser beam generator and a controller, although not shown. Have been. This upper horizontal arm 5
A laser processing head 9 having a laser nozzle 7 movable in the Y-axis direction (the front-back direction in FIG. 8) is mounted on the lower surface of the laser processing head 9.

A horizontal work table 13 is provided on the lower frame 11 of the apparatus main body 3, and a work movement positioning device 15 for supporting the work W and moving the work W on the work table 13 is provided. .

The work movement positioning device 15 is provided with a carriage base 17 extending on one side of the work table 13 in the X-axis direction (the left-right direction in FIG. 8).
A carriage 19 is provided on the carriage base 17 so as to be movable in the X-axis direction. And College 1
9 is provided with a plurality of work clamps 21 for gripping one edge of the work W.

On the work table 13, there is provided a work positioning device 25 provided with a plurality of locating pins 23 at appropriate positions so as to be freely retractable.

The work positioning device 25, which is a main part of this embodiment, will be described in more detail.

Referring to FIGS. 1, 2 and 3, the work positioning device 25 has a plurality of (three in this embodiment) locate pins 23a, 23b and 23c. These locate pins 23a, 23b, 23c are
Are mounted on locating pin frames 29A, 29B integrally provided on a support plate 27 mounted on the apparatus main body 3 of
Locate pins 23a and 23b are mounted on locate pin frame 29A, and locate pins 23c are mounted on locate pin frame 29B.

More specifically, the locate pin frame 29
The locating pins 23a, 23b are inserted into the locating pin holders 31a, 31b erected on A and are mounted so as to be movable in the vertical direction, and engagement screws 33a, 33b are fixed to the lower portions of the locating pins 23a, 23b (FIG. 4). A support block 35 hanging down from the lower surface of the locate pin frame 29A,
5, a U-shaped bearing support plate 37 is provided.

On the other hand, the locating pin 23c is also inserted into the locating pin holder 31c and movably mounted in the vertical direction on the locating pin frame 29B in the same manner as described above, and an engaging screw 33c is fixed to the lower portion of the locating pin 23c. I have. Then, the locate pin frame 29
A support block 35 is provided hanging down from the lower surface of B, and the bearing support plate 37 is integrally provided on the support block 35.

Bearings 39 are provided at both ends of the bearing support plate 37, and a rotating shaft 41 is horizontally and rotatably supported by the bearings 39. An operating handle 43 is provided at one end of the rotating shaft 41. ing. Further, a crank 45 for vertically moving the locate pins 23a, 23b and 23c is fixed to the rotating shaft 41. As shown in detail in FIG. 5, the crank 45 is provided with a pin 47 at the tip thereof.
Is inserted inside. As shown in FIG. 6, the details of the crank 49 are plate-shaped, and have holes 55 rotatably mounted on fulcrum shafts 53 provided on the locate pin holders 31b and 31c.

An elongated hole 57 is formed to engage with the engaging screws 33b and 33c provided on the locating pins 23b and 23c serving as action points and to be slidable. 61 are formed.

The crank 59 has a plate shape as shown in detail in FIG.
A hole 65 is formed to be rotatably mounted on a fulcrum shaft 63 provided at the center. Also, the locating pin 23a serving as an action point
A long hole 67 is formed so as to be slidable by engaging with the engaging screw 33a provided on the shaft 49. Further, a force point shaft that engages with the long hole 61 formed in the crank 49 so as to interlock with the crank 49 described above. 69 are provided.

With the above configuration, the operation is as shown in FIG.
Are located pins 23a, 23b, 2
The lower limit of 3c is shown, and when the handle 43 is rotated from the state shown by the solid line to the position shown by the two-dot chain line, the rotation of the handle 43 causes the rotation shaft 41 to rotate,
The crank 45 fixed to the rotating shaft 41 moves counterclockwise, and the crank 45 rises. At this time, the pin 47 provided on the crank 45 moves in the elongated hole 51 of the crank 49, and the crank 49 is moved clockwise about the fulcrum shaft 53 as a fulcrum. Therefore, the locate pins 23b and 23c rise through the engagement screws 33b and 33c engaged with the elongated hole 57 of the crank 49.

In conjunction with the rotation of the crank 49, the power point shaft 69 provided on the crank 59 rises while sliding in the elongated hole 61 formed in the crank 49, and moves the crank 59 counterclockwise in the fulcrum shaft 63. Move around the center of rotation. Therefore, the engaging screw 33a engaged with the long hole 67 of the crank 59
Locating pin 23a rises via.

As described above, the locate pins 23a, 23b, and 23c are simultaneously operated by operating the handle 43.
Can be moved up and down, one locating pin 23a is provided at the origin in the material moving direction (X-axis direction), and two locating pins 23b and 23c are provided at the origin in the light moving direction (Y-axis direction).
In one operation, the three locate pins 23a, 23b, 23c are simultaneously moved in the vertical direction in conjunction with each other. Therefore, each of the locate pins 23a, 23b, 23c has a simple configuration.
Can be moved up and down, and the origin can be positioned in the X-axis and Y-axis directions by bringing the workpiece W into contact with each of the locate pins. Therefore, the displacement due to the clamp when the work W is gripped and the work W is pressed is eliminated.
Thus, there is no need to apply a contact to the clamp, so that precision of the clamp is not required.

[0021]

As will be understood from the above description of the embodiments, in short, the present invention provides a work table (13) for supporting a work (W) in a plate processing machine, and an X-axis of the work (W). A first locate pin (23a) for positioning the origin in the direction and a plurality of second locate pins (23b, 23b) for positioning the origin in the Y-axis direction of the work (W).
23c) is provided on the upper surface of the work table (13) so as to be able to protrude and retract from the upper surface of the work table (13). (41)
A crank (45) for vertically moving the plurality of second locate pins (23b, 23c) is integrally provided, and a crank for moving the first locate pin (23a) vertically and the crank (45) are combined. The locating pins 23a and 23b have a simple configuration because all the locating pins are simultaneously protruded and retracted with respect to the upper surface of the work table (13) by operating the rotary shaft (41). , 23c can be simultaneously moved up and down, and each of the locate pins 23a, 23c
Since the work W is brought into contact with the b and 23c to determine the origin in the X-axis and Y-axis directions, the work clamp for clamping the work W does not need an abutting portion or the like, and the above-described problem can be solved. it can.

Further, since a plurality of locating pins are simultaneously moved up and down by using a single rotating shaft 41 and a plurality of cranks, the number of actuators such as fluid pressure cylinders for moving the locating pins up and down can be reduced. The configuration can be simplified.

[Brief description of the drawings]

FIG. 1 is a sectional view of a work positioning device which is a main part of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a side view of FIG.

FIG. 4 is an explanatory perspective view of a locate pin.

FIG. 5 is an explanatory perspective view of a crank.

FIG. 6 is an explanatory perspective view of a crank.

FIG. 7 is an explanatory perspective view of a crank.

FIG. 8 is a perspective explanatory view showing an overall configuration of a laser processing machine according to an embodiment for implementing the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Laser processing machine 23a, 23b, 23c Locate pin 25 Work positioning device

──────────────────────────────────────────────────続 き Continued on front page (51) Int.Cl. ⁶ Identification code FI B23Q 3/18 B23Q 3/18 A

Claims (1)

(57) [Scope of request for utility model registration] 1. A work table (13) for supporting a work (W) in a plate material processing machine,
The first locate pin (23) for positioning the origin in the axial direction
a) and a plurality of second locating pins (23b, 23c) for positioning the workpiece (W) in the Y-axis direction so as to be able to protrude and retract from the upper surface of the work table (13). In the work positioning device of (1), a crank () for vertically moving the plurality of second locating pins (23 b, 23 c) on a rotating shaft (41) horizontally and rotatably provided below the work table (13). 45) and a crank for moving the first locating pin (23a) up and down and the crank (45) are operatively connected to each other to form the rotary shaft (41).
Characterized in that all of the locating pins are simultaneously protruded and retracted with respect to the upper surface of the work table (13) by the operation of (1).