JPH0872007A - Clamping device of wooden building material processing machine and the like - Google Patents

Abstract

PURPOSE: To provide a clamping device for a wooden building material etc., through which a work can be transferred under a state that it remains clamped. CONSTITUTION: A clamping device comprising a pair of both side vise pieces (a), (b) are arranged on a side of a conveying path transferring a work (W) in the longitudinal direction. The clamping device performs opening or closing operation by a pressing device 15 and the work (W) is clamped at the time of blockading. A flat-platelike pressing surface and material contacting rollers Ra, Rb which have imparted a projecting tendency to the pressing surface by an energizing device 16 are arranged respectively on the vise pieces (a), (b).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clamping device such as a wooden construction material processing machine capable of transferring only a processed material while maintaining a clamped state.

[0002]

2. Description of the Related Art As a mortise processing machine (pre-cut processing machine) for wooden building materials, there has hitherto been disclosed in JP-A-5-169402.
There is one disclosed in Japanese Patent Publication No. 1-55964.
In these pre-cut processing machines, it is necessary to clamp and fix the processed material, for example, with respect to the center in the tenon processing. Therefore, conventionally, it is fixed in the longitudinal direction,
In addition, it is provided with a large number of clamping means which are centripetally opened and closed.

In a conventional processing machine, a work material is set at a predetermined position by a chucking type transfer control means, and then this work material is fixed by a clamping means, and then a cutting head is controlled to perform a required tenon processing. I went there. For example, male tenon processing of the material end portion, female tenon processing of the middle portion, and the like can be performed without problems in the control stroke range of the cutting head because the control movement in the longitudinal direction is small.

[0004]

The machining of the building material is not limited to the above-mentioned male tenon and female tenon, which are scattered, and there is a grooved process long in the longitudinal direction. This is a simple cutting control. It cannot be processed by itself. That is, the long groove processing requires a cutting transfer exceeding the control stroke of the cutting head, and in the conventional processing machine, there is no means other than the division processing, so that the processing efficiency is remarkably lowered.

The present invention has been made in view of the above-mentioned problems of the prior art, and the long groove can be smoothly processed by allowing the workpiece to be transferred in the longitudinal direction while being clamped. To provide a clamping device for such a wooden building material processing machine.

[0006]

In order to achieve the above-mentioned object, a clamping device such as a wooden construction material processing machine according to the present invention is configured as follows. That is, the gist thereof is to dispose a clamping means that operates in the closing direction and clamps the work material on the side of the conveying path that transports the work material in the longitudinal direction, and cuts the work material in the clamped state. In the wood working machine, the clamping means is composed of a pair of vice pieces on both sides, and the contacting material roller provided with a pressing tendency on the pressing surface of each vice piece by the biasing means.

A second invention of the clamp device according to the present invention is summarized in that the urging means is a compression spring and the contact roller is an idler roller.

A third aspect of the clamp device according to the present invention is that the vice piece is closed by the pressing means and the pressing force can be set to be larger or smaller than the biasing force of the compression spring. And

[0009]

When the pair of vise pieces are opened, the pressing surface and the contact roller separate from the work material. Therefore, in this state, the processed material can be freely transferred. When the pressing force of the pressing means is made larger than the urging force of the contact roller to close the vice piece, the pressing surface comes into contact with the workpiece next to the contact roller. In this case, the processed material can be fixedly clamped. Further, when the pressing force is made smaller than the urging force to close the vise piece, only the contact roller comes into contact with the work material. In this case, the processed material can be movably clamped.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the clamp device according to the present invention will be described below. FIG. 1 is a plan view of a wooden building material processing machine equipped with this device, and FIG. 2 is a side view of the same, in which 1 is a base frame extending in the front-rear direction (left-right direction in the figure) and 2 is a front side of the base frame 1 (see FIG. The carry-in conveyor 3 arranged on the right side of the same is similar to the carry-out conveyor 4 arranged on the rear side, and the moving base 5 arranged in the front part of the base frame 1 approaches the moving-in conveyor 2 and the moving base 4 is moved at a constant stroke. It is a pneumatic cylinder that moves back and forth.

Three fixed bases 6a, 6b and 6c are arranged on the base frame 1 behind the moving base 4, and three fixed bases 7 are arranged on the upper surfaces of the moving base 4 and the fixed bases 6a to 6c. The roller conveyor 7 constitutes a series of transport paths A together with the carry-in conveyor 2 at the upstream portion and the carry-out conveyor 3 at the downstream portion. 8-11 is a moving base 4
And first to fourth clamping means provided on the fixed bases 6a to 6c. These clamping means 8 to 11 centripetically open and close a pair of left and right vice pieces a and b arranged on both sides of the conveyance path A. The workpiece W is clamped around the center.

The above first to fourth clamp means 8 to 11
Have a common configuration, and therefore, in the embodiment, the fourth clamp means 11 will be described with reference to FIG. 4, and the duplicate description of the other parts will be omitted. That is,
12 is a left and right guide 13a for guiding the vice pieces a and b,
13b is a passive nut 14 attached to the lower part of the vise pieces a and b, and is a feed screw shaft screwed in common with the passive nuts 13a and 13b. This feed screw shaft 14 is provided with a right-hand thread part and a left-hand thread part. Engage each with a passive nut 13a, 13b.

Reference numeral 15 is a hydraulic motor that rotationally drives the feed screw shaft 14, and opens and closes the vise pieces a and b by forward and reverse rotation. This hydraulic motor 15 constitutes a pressing means of the clamp means 11, and sets the clamping force of the vise pieces a and b in two stages, large and small, by the supplied hydraulic pressure. The difference in the above clamping force will be described later.

Ra and Rb are vertical contact rollers provided on the vertical pressing surfaces of the vice pieces a and b. The contact rollers Ra and Rb are idle rollers.
Energizing means 16, 16 composed of a contraction spring are engaged with the central shaft. The contact rollers Ra and Rb are given a tendency to project from the pressing surface by the urging means 16 and 16, and the urging force is set to an intermediate value between the two clamping forces of the pressing means 15.

Next, a processing unit for performing various kinds of processing on the processed material W on the transport path A will be described. That is, B is a circular saw unit disposed between the first and second clamping means 8 and 9. The circular saw unit B is a column 23 established on the base frame 1 and a lifting base for vertically moving the column 23. Two
4. A drive motor 25 attached to the elevating base 24 and a circular saw 26 fixed to the rotary shaft of the drive motor 25.

The circular saw 26 cuts the front end of the work material W when traversing the transport path A vertically. C is a stopper means disposed near the traveling position of the circular saw 26 and disposed on the rear side (downstream portion). When the stopper means C projects to the transport path A, the stopper means C abuts on the front end of the workpiece W and moves backward. Regulate the delivery of.

Da and Db are a pair of left and right side surface processing units arranged between the second and third clamp means 9 and 10. These side surface processing units Da and Db are symmetrically arranged. It consists of the following components. Ie 27
Is a first X-axis moving base 28 for controlling and moving the longitudinal guide rail 27a in the front-rear direction.
Y-axis moving base that is placed on top and moves in the left-right direction
Reference numeral 29 denotes a Z-axis moving base which is arranged on a column 30 established on the Y-axis moving base 28 and which is vertically controlled to move.

Subsequently, reference numeral 31 is a turret head 3 which is arranged on the Z-axis moving base 29 and which is swiveled in the Y-axis-Z-axis plane.
Reference numerals 2 and 32 denote a large number (6 in the embodiment) of processing blades radially provided on the turret head 31, and a mortise processing is performed on a side surface of the processing material W by a horizontal processing blade 32 directed to the transport path A.
Apply grooving. The turret head 31 includes an X-axis moving base 27, a Y-axis moving base 28, and a Z-axis moving base 2.
9. Control drive means Dx, D provided in association with each axial direction
It is driven by y and Dz. Of the above, the first X-axis movement base 27 has a control stroke of about one pitch (900 mm as an example) of the building module (basic column interval).

E is an upper and lower surface processing unit disposed between the third and fourth clamp means 10 and 11 behind the side surface processing units Da and Db.
Includes a processing head such as a cutter head 33, a corner head 34, and a router head 35, which are arranged side by side in a direction crossing the transport path A. The upper and lower surface processing unit E has the following respective configurations. That is, 37 is a second X-axis moving base 38 that controls and moves the guide rail 37a in the longitudinal direction.
Is a Y-axis moving base 39 provided on the X-axis moving base 37,
40 are columns established on both sides of the Y-axis moving base 38.

Next, 41 is a Z-axis moving base arranged on one of the columns 39, and the Z-axis moving base 41 is provided with the above-mentioned cutter head 33. Reference numerals 42 and 43 denote a pair of upper and lower Z-axis moving bases on the other column 40. The upper Z-axis moving base 42 is downwardly angled only to the head 34 and the router head 3.
5 is provided. Further, the lower Z-axis moving base 43 is provided with the heads 34 and the router heads 35 only at the corners upward. The cutter head 33 is for grooving such as studs and talc chips, the corner only head 34 is for square hole machining, and the router head 35 is for grooving.

The upper and lower surface processing unit E includes an X-axis moving base 37, a Y-axis moving base 38, and a Z-axis moving base 4.
Control drive means E for each axial direction provided in association with Nos. 2 and 43
Control movement is performed by x, Ey, and Ez. When the control drive unit Ey in the Y-axis direction operates, the cutter head 33, the corner-only head 34, and the router head 35 move in a direction crossing the conveyance path A. The second X-axis movement base 37 of the above has a slight control stroke.

F is a rear end of the fourth clamp means 11 and is provided at the front end of the workpiece W via a long extension arm 51. A corresponding clamp claw 50 is provided facing forward. (Refer to FIG. 3) The tip gripping means F is movement-controlled by the positioning control means G, and the range of the clamp claw 50 from the position corresponding to the side surface processing units Da and Db to the position corresponding to the rear conveyor 3 is shown. Set the position with. The work piece W is attached and detached by the clamp claw 50 by the pneumatic cylinder 54.

The construction of the wooden building material processing apparatus according to one embodiment is as described above, and cutting, mortising,
Perform various processes such as grooving. To do so, first, the work material W is supplied onto the carry-in conveyor 2, and the work material W is transferred rearward by the rotational driving of the conveyor. In transferring the work material W, the stopper means C is projected to the transport path A in advance, and the first clamping means 8 located upstream of the circular saw head B is moved forward, that is, the clamping means 8 is moved.
And the circular saw head B are spaced apart from each other.

When the tip of the work material W comes into contact with the stopper means C, the transfer is stopped, and the work material W is clamped and fixed by the first clamping means 8. The clamping force at this time is set to “strong”, and the pressing surfaces of the vise pieces a and b are brought into contact with the processed material W. Then, in this state, the tip is dropped and cut. When the cutting process is completed, the stopper means C is retracted, and then the clamp means 8 is moved backward by the pneumatic cylinder 5 in the clamped state. By this transfer operation, the tip of the processed material W reaches the processing regions of the side surface processing units Da and Db.

Since the pneumatic cylinder 5 has a constant stroke, the work material W moves backward by a certain amount. After the transfer, the work material W is strongly clamped by the second clamp means 9, and then the side surface processing units Da and Db are respectively subjected to X.
The tenon is controlled and driven in the axis, Y-axis, and Z-axis directions to perform tenon processing such as a female tenon on the side surface. This mortise processing can be performed at several places within the X-axis movement range. During this processing, the first clamp means 8 is returned to the front position after releasing the clamp.

When the machining of the vicinity of the tip end by the side surface machining units Da and Db is completed, the first clamp means 8 is strongly clamped and the second clamp means 9 is opened, and the pneumatic cylinder 5 is operated again. Then, the second backward transfer of the processed material W is performed. After the transfer, mortise processing is performed by the side surface processing units Da and Db as in the first step. When the tip of the workpiece W reaches the position of the third clamping means 10 by the second intermittent feeding, the tip is firmly clamped to cope with the cutting work.

When the above tenon processing is completed, only the third clamping means 10 is opened first. Then, the tip end gripping means F is moved forward by the positioning control means G, and the tip end of the processed material W is gripped by the clamp claws 50. When the sandwiching of the clamp means 10 from the clamp means 10 is completed in this way, the positioning control means G is driven while the second and subsequent clamp means 9 to 11 are opened, and the workpiece W is arbitrarily processed. And position it in place.

When the tip reaches the processing area of the upper and lower surface processing unit E by the above positioning operation and is set over both processing areas of the side surface processing units Da and Db, the clamp claw 50 and the second and the second processing areas are set. A strong clamping operation is performed by the clamping means 9 and 10 of No. 3, and a desired processing unit is selected to perform various types of tenon processing.

For example, when square holes are to be formed on the upper and lower surfaces of the workpiece W, the Y-axis moving base 38 is moved by the control drive means Ey in the Y-axis direction so that only the corner heads 34, 34 are machined in the transport path A. Set at the center of the material W. Then, after the processing head is selected, the control drive means Ex in the X-axis direction performs longitudinal positioning to start square hole processing. In addition, if the side surface processing units Da and Db are moved and controlled in the X-axis direction during the square hole processing and the turret head 31 is positioned, the processing in two positions in the front-rear direction can be performed simultaneously or continuously.

In the above example, only the corners are processed by the head 34, but it is needless to say that the cutter head 33 is selected when performing the groove processing orthogonal to the longitudinal direction. As described above, the side surface processing units Da, Db
When the workpiece W exists in both the processing regions of the upper and lower surface processing units E, the one and the other processing units can be positioned to perform simultaneous processing.

Next, description will be made on a case where the surface of the workpiece W is subjected to continuous groove-grooving in the longitudinal direction. For example,
When processing the upper surface of the processing material W, the router head 35 in the upper and lower surface processing unit E is set at the center of the transport path A. After setting the head, the clamping force of the pressing means of the second and third clamping means 10 and 11 is set to "weak", and the workpiece W is transferred and controlled by the clamp claws 50 to perform the cutting process. The fourth clamp means 11 is opened to avoid interference with the clamp claw 50.

When the clamping force is set to "weak" as described above, the vise pieces a and b are actuated in the opening direction, and are separated from the work material W, leaving only the energized contact rollers Ra and Rb. Therefore, the processed material W is centripetically clamped by receiving a weak clamping force and, at the same time, is held in a state of being movable in the longitudinal direction by the rolling of the contact roller. In addition, the groove grooving process described above is performed regardless of the front-rear direction.
It can be continuously performed in a control stroke range of 0.

When various processes such as the cutting process and the tenon process over the entire length are completed as described above, after the clamping operation by all the clamping means 8 to 11 is released, the workpiece W is carried out by the clamp claws 50. 3, the conveyor is driven after the delivery, and the conveyor is processed.

[0034]

As described above, the clamping device for the wooden construction material processing machine and the like according to the present invention is provided with the contacting material roller having the protruding tendency on the pressing surface of the processing material in the vise piece. Therefore, by clamping the processed material in a movable state by the contact roller, the excellent effect that continuous processing in the longitudinal direction can be performed is exhibited.

[Brief description of drawings]

FIG. 1 is a plan view of a wooden building material processing machine provided with a clamp device according to the present invention.

FIG. 2 is likewise a side view.

FIG. 3 is a plan view showing a configuration of a main part of a clamp device according to the present invention.

FIG. 4 is likewise a front view.

[Explanation of symbols]

 2 carry-in conveyor 3 carry-out conveyor A transport path 8 first clamp means 9 second clamp means 10 third clamp means 11 fourth clamp means a vice piece b vice piece 15 pressing means (hydraulic motor) Ra contact material roller Rb Contact material roller 16 Energizing means (compressed spring) W Worked material

Claims (3)

[Claims] 1. A wood processing machine for cutting a work material in a clamped state by arranging a clamp means for clamping the work material by operating in a closing direction at a side of a conveying path for transferring the work material in a longitudinal direction. In the above, the above-mentioned clamping means is composed of a pair of vice pieces on both sides, and a contact material roller provided with a pushing tendency by the urging means is provided on the pressing surface of each vice piece. Clamp device. 2. The clamp device for a wooden construction material processing machine according to claim 1, wherein the urging means is a compression spring and the contact material roller is an idle roller. 3. The wooden building material processing according to claim 2, wherein the vise piece is closed by the pressing means and the pressing force can be set to be larger or smaller than the urging force of the compression spring. Clamping device for machines.