JPH0712575B2 - Plate processing equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plate material processing apparatus for forming a V-shaped groove in a thin plate material such as a printed circuit board or cutting the plate material with a disk-shaped cutter. .

[0002]

2. Description of the Related Art As a conventional technique, there is one described in Japanese Patent Application No. 63-138144 filed by the present applicant. In FIG. 8, reference numeral 1 denotes a pair of upper and lower disc-shaped cutters that form a V-shaped groove in the plate material W, and is rotated by a cutter motor 2 arranged in the horizontal direction. The cutter motor 2 is supported by a swivel base 3 that swivels around a vertical axis, that is, a Z axis. The swivel base 3 is swung by the swivel cylinder 4 so that the rotational axis of the cutter 1 is oriented in the X-axis direction and the Y-axis direction. The swivel base 3, and hence the cutter 1, is controlled to move in the X-axis direction by an X-axis screw 6 which is rotated in the forward and reverse directions by an X-axis motor 5.

A Y-axis moving body 7 is arranged on the side of the cutter 1, and two clamp devices 8 for holding the end portion of the plate material W on the Y-axis moving body 7 are arranged at a predetermined pitch in the Y-axis direction. .
The Y-axis moving body 7 is controlled to move in the Y-axis direction by a Y-axis screw 11 that is rotated in the forward and reverse directions by a Y-axis motor 10.
In FIG. 8, 12 is an X-axis rail that slidably supports the swivel base 3, 13 is a Y-axis rail that slidably supports the Y-axis moving body 7, and 14 is a synchronization of the upper and lower X-axis screws 6. It is a timing belt to be connected.

When the end of the plate material W is clamped by the clamp device 8 to form a groove (a) in the Y-axis direction on the plate material W, the swivel cylinder 4 moves the swivel base 3 to the rotational axis of the cutter 1. Is turned so that it points in the X-axis direction (state of FIG. 6),
In this state, the Y-axis screw 11 is rotated by the Y-axis motor 10 to move the plate material W in the Y-axis direction via the clamp device 8, and the cutter 1 makes a groove (a) on the upper and lower surfaces of the plate material W in the Y-axis direction. To form. When forming the groove (a) in the X-axis direction on the plate material W, the swivel cylinder 4 swivels the swivel base 3 so that the rotation axis of the cutter 1 is oriented in the Y-axis direction. 5, the X-axis screw 6 is rotated to move the cutter 1 in the Y-axis direction through the swivel base 3, and the cutter 1 forms a groove (a) in the Y-axis direction on the upper and lower surfaces of the plate material W.

[0005]

In the above-mentioned prior art, since the cutter 1 is laterally offset from the center of rotation of the swivel base 3, when the swivel base 3 is rotated, the upper and lower ends of the rotation circle of the cutter 1, That is, the point of contact with the plate material turns around a distance laterally offset from the turning center of the turning base 3. For this reason, when machining the grooves in the X-axis and Y-axis directions on the plate material W, positioning control of the cutter 1 in the X-axis and Y-axis directions becomes complicated, and this positioning requires time, which results in rapid machining. There was no flaw. Further, since the swivel base 3 is swung by the reciprocating cylinder, that is, the swivel cylinder 4, the swivel base 3 cannot be swung at any angle other than 90 degrees, or 180 degrees, so that the oblique groove formation or Cutting, and further selection of the cutting direction of the cutter with respect to the plate material W (upper cut or down cut),
There was a defect that it could not be switched. It is an object of the present invention to obtain a novel plate material processing apparatus that solves the above drawbacks.

[0006]

The present invention is configured as follows in order to achieve the above object. That is,
A screw bearing having a female thread formed on the inner circumference and a spline bearing having a spline formed on the inner circumference are arranged coaxially in the vertical direction and rotatably provided on the column. The screw bearing is screw-fitted, the other end is spline-fitted to the spline bearing, and a disk-shaped cutter that rotates about a horizontal axis is provided at one end of the swivel shaft, and the upper end of the rotation circle of the cutter is provided. The lower end is arranged on the center line of the swivel shaft, and a swivel shaft lifting motor for rotating the screw bearing and a cutter swivel motor for rotating the spline bearing are provided.
In addition, an air passage is formed in the axial center of the swivel shaft, and an air suction hose communicating with the air passage is connected to the other end of the swivel shaft.

[0007]

Since the present invention has the above-mentioned structure, when the spline bearing is rotated by a predetermined amount by the cutter turning motor, the cutter turns in the same direction via the turning shaft, and the cutter moves up and down the rotation circle. Swirl with the ends located on the centerline of the swivel axis. In this case, by rotating the screw bearing in the same direction by the swivel shaft lifting motor, the screw bearing and the swivel shaft do not rotate relative to each other, and the swivel shaft and hence the cutter do not move in the vertical direction. When the screw bearing is rotated by a predetermined amount by the swing shaft lifting motor with the cutter swing motor stopped, the screw bearing rotates with respect to the swing shaft, and the swing shaft moves in the vertical direction. As a result, the cutter moves up and down and the amount of bite into the plate changes.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. In the drawings, FIG. 1 is an overall perspective view showing an embodiment of the present invention, FIG. 2 is a perspective view of a processing device section thereof, FIG. 3 is a side view of a main portion thereof, FIG. 4 is a perspective view of a clamp section, and FIG. FIG. 6 is a side cross-sectional view of the device during a holding operation, FIG. 6 is a side cross-sectional view of the clamp device during a releasing operation, and FIG. 1 to 3, reference numeral 15 is a pair of upper and lower disc-shaped cutters that form V-shaped grooves in a plate material W such as a printed circuit board, and the cutter motor 1 is arranged horizontally.
It is rotated by 6. The cutter motor 16 is supported via an arm 18 at the opposite end of a hollow swivel shaft 17 that swivels around the vertical axis, that is, the Z axis.
The supporting portion of the cutter motor 16 of the arm 18 is biased laterally from the turning shaft 17 so that the upper and lower ends of the cutter 15 are located on the turning center line of the turning shaft 17.

The swivel shaft 17 is mounted on the column 20 as follows.
Attach to. That is, a screw bearing 21 having an internal thread formed on the inner circumference and a spline bearing 2 having a spline formed on the inner circumference
2 are vertically arranged coaxially, and these are rotatably attached to the column 20 via a bearing 23. Then, the two turning shafts 17 are vertically arranged so as to face each other,
The opposite end portion is screw-fitted to the screw bearing 21,
The opposite side end portion is spline-fitted to the spline bearing 22. Further, toothed pulleys 24 and 25 are provided on the outer circumferences of the screw bearing 21 and the spline bearing 22, and these are connected to a turning shaft lifting motor 26 and a cutter turning motor 27 via a timing belt.

A bracket 28 is attached to the spline bearing 22.
The plate 29 is fixed to the bracket 28 so as to be vertically movable, and the guide roller 30 adjacent to the side of the cutter 15 is rotatably attached to the end of the plate 29. Further, the bracket 28 has a roller upper and lower cylinder 31
, The rod is connected to the plate 29, and the roller up-and-down cylinder 31 is extended to operate the guide roller 3
0 is pressed against the plate material W with a predetermined pressure to prevent the plate material W from floating.

A Y-axis moving body 35 is arranged on the side of the cutter 15 as shown in FIG. This Y-axis moving body 35 is a Y-axis screw 35 that is rotated in the forward and reverse directions by a Y-axis motor 35a.
The movement is controlled in the Y-axis direction by b. The Y-axis moving body 3
5 is provided with a clamp device 36. This clamp device 36
Is as shown in FIGS. That is, the above Y
A pipe actuating rod 38, which is reciprocated in the X-axis direction by a Y-axis cylinder 37, is slidably supported on the shaft moving body 35,
The rear part of each operating rod 38 is attached to the case 3 of the clamp cylinder 39.
X-axis cylinder 3 locked to Y-axis moving body 35 via 9a
7 by connecting to the rod 37a and expanding and contracting each X-axis cylinder 37 to independently reciprocate each operating rod 38 in the X-axis direction via the case 39a. Further, the clamp cylinder 39 has its rod 39b penetrated through the axial center portion of the operating rod 38 and projected forward.

A holder 40 is attached to the front end of each of the operating rods 38.
Is projected and fixed toward the front, and the holder 40
A pair of clamp arms 41, 42 swinging up and down around a fulcrum pin 31 is swingably attached to the clamp arms 41, 42, and holding claws 41a, 42a and a rod vertically opposed to the front end and the rear of each clamp arm 41, 42. The plunge surfaces 41b and 42b are formed. The lower rod thrust surface 42b is the lower holding claw 4.
2a is located on the mounting reference plane of the plate W,
It is formed on a surface that is in sliding contact with the outer circumference of the rod 39b and is parallel to the moving axis (X axis) of the rod 39b, and the upper rod projecting surface 41b expands upward rearward with respect to the moving axis of the rod 39b. Form on a slope. Further, a return spring 43 is interposed between the front portions of the clamp arms 41, 42, and the return spring 43 causes the clamp arms 41,
42 is urged by swinging in a direction in which the holding claws 41a, 42a separate (release).

As shown in FIG. 1, the above-mentioned column 20 is mounted on a bed 45 so as to be movable in the X-axis direction, and is moved by an X-axis screw 47 which is rotated in the forward and reverse directions by an X-axis motor 46.
The movement is controlled in the axial direction. In FIG. 1, reference numeral 48 denotes a processing table for supporting the plate material, which is formed by a large number of receiving rollers. Further, an air suction hose 49 is connected to the end portion of the swivel shaft 17 on the opposite side to communicate with the air passage 17a formed in the axial center portion of the swivel shaft 17.

Next, the operation mode of the above embodiment will be described. Hold the end of the plate material W by the clamp device 36,
When forming the groove (a) in the X-axis direction on the plate material W, the turning shaft 17 is turned by the cutter turning motor 27 so that the rotation axis of the cutter 15 is oriented in the Y-axis direction as shown in FIG. Then, in this state, the X-axis screw 46 is moved by the X-axis motor 46.
Is rotated to move the column 20 in the X-axis direction. Then, the cutter 15 is moved in the X-axis direction via the turning shaft 17, and the cutter 15 forms a groove (a) in the X-axis direction on the upper and lower surfaces of the plate material W. In this case, when the predetermined clamp device 36a faces the movement line of the cutter 15 in the X-axis direction, the clamp cylinder 3 of the clamp device 36a.
9 is released and the X-axis cylinder 37 of the operating rod 38 supporting the clamp device 36 is shortened, the clamp device 36a moves to the plate W as shown in FIG.
Will retreat in the X-axis direction from the end of the. Accordingly, the cutter 15 can be moved in the X-axis direction without being influenced by the position of the clamp device 36a, and the groove (a) can be formed over the entire length of the plate material W in the X-axis direction. In addition, the plate material W is the retracted clamp device 3
It is clamped by the remaining clamp device 36 except 6a.

Also, the rod 39 of the clamp cylinder 39
When the front end portion of b is inserted into the rod insertion surfaces 41b and 42b, the insertion surface 42b parallel to the moving axis of the rod 39b.
The lower clamp arm 42 having the ridge does not swing, and the thrust surface 41b is inclined with respect to the moving axis of the rod 39b.
The clamp arm 41 on the upper side having the angle oscillates in the holding direction (downward), so that the plate material W is always held by the lower surface reference.

When forming a groove (a) in the Y-axis direction on the plate material W, the cutter turning motor 27 turns the turning shaft 17 so that the rotation axis of the cutter 15 is oriented in the X-axis direction, and at the same time. The screw bearing 2 is driven by the rotary shaft lifting motor 26.
Rotate 1 by the same amount in the same direction. As a result, the screw bearing 2
1 and the rotary shaft 17 do not rotate relative to each other, and therefore the cutter 15
Does not move up and down, but rotates so that its rotation axis is oriented in the X-axis direction. Further, the cutter 15 turns with the upper and lower ends of its rotating circle positioned on the center line of the turning shaft 17. In this state, the Y-axis motor 35a drives the Y-axis screw 3
5b is rotated to move the plate material W in the Y-axis direction via the Y-axis moving body 35 and the clamp device 36. Then, the cutter 15 is used to form a groove (a) in the Y-axis direction on the upper and lower surfaces of the plate material W.
Is formed.

When the screw shaft 21 is rotated by a predetermined amount while the cutter rotating motor 27 is stopped, the screw bearing 21 is rotated by a predetermined amount, the screw bearing 21 rotates with respect to the rotating shaft 17, and the rotating shaft 17 moves in the vertical direction. The cutter 15 moves up and down, and the amount of bite into the plate W changes. The chips generated during processing flow through the axial center of the swivel shaft, that is, the air passage 17a, and the air suction hose 4
It is sucked and removed by 9.

[0018]

As is apparent from the above description, according to the present invention, the contact point of the cutter with the plate material is always located on the turning center line of the turning axis even if the rotation axis of the cutter changes in the X-axis-Y-axis direction. In addition, since the swivel shaft is rotated by the motor, that is, the cutter swivel motor, the cutter can be swung at any angle over 360 degrees, and it is possible to form or cut grooves in the X-axis and Y-axis directions. X
It is possible to form or cut an inclined groove other than the axial and Y-axis directions, and to achieve an effect that this positioning can be performed quickly. Further, it is possible to easily select and switch the cutting direction (upper cut or down cut) of the cutter with respect to the plate material.

[Brief description of drawings]

FIG. 1 is an overall perspective view showing an embodiment of the present invention.

FIG. 2 is a perspective view of a processing apparatus unit showing an embodiment of the present invention.

FIG. 3 is a side view of a main part of a processing device section showing an embodiment of the present invention.

FIG. 4 is a perspective view of a clamp part showing an embodiment of the present invention.

FIG. 5 is a side cross-sectional view of the clamp device according to the embodiment of the present invention during a holding operation.

FIG. 6 is a side cross-sectional view of the clamp device according to the embodiment of the present invention during the releasing operation.

FIG. 7 is a schematic plane view showing a processed state of a plate material according to the present invention.

FIG. 8 is a side view of a main part showing a conventional example.

[Explanation of symbols]

 15 Cutter 16 Cutter Motor 17 Swivel Axis 17a Air Passage 18 Arm 20 Column 21 Screw Bearing 22 Spline Bearing 23 Bearing 24 Toothed Pulley 25 Toothed Pulley 26 Swivel Axis Lifting Motor 27 Cutter Slewing Motor 28 Bracket 29 Plate 30 Guide Roller 35 Y Axis Moving body 35a Y-axis motor 35b Y-axis screw 36 Clamping device 37 X-axis cylinder 37a Rod 38 Actuating rod 39 Clamp cylinder 39a Case 39b Rod 40 Holder 41 Clamp arm 41a Clamping claw 41b Rod plunging surface 42 Clamp arm 42a Claw rod claw Surface 43 Return spring 45 Bed 46 X-axis motor 47 X-axis screw 48 Processing table 49 Air suction hose W Plate material

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-52-144885 (JP, A) JP-A-1-306118 (JP, A) Actually open 3-3-02222 (JP, U) Actually open 53- 137137 (JP, U)

Claims (2)

[Claims] 1. A screw bearing having an internal thread formed on an inner circumference thereof and a spline bearing having a spline formed on the inner circumference thereof are vertically coaxially arranged and rotatably provided on a column, and a swivel shaft is vertically erected. Screw one end to the screw bearing,
Spline fit the other end to the spline bearing,
A disc-shaped cutter that rotates about a horizontal axis is provided at one end of the swivel shaft, and the upper and lower ends of the rotating circle of the cutter are arranged on the center line of the swivel shaft to rotate the screw bearing. An apparatus for processing a plate material, comprising: a shaft lifting motor; and a cutter turning motor that rotates the spline bearing. 2. The machining of the plate material according to claim 1, wherein an air passage is formed in the axial center portion of the swivel shaft, and an air suction hose communicating with the air passage is connected to the other end of the swivel shaft. apparatus.