JPH03247405A - Device for contacting and positioning workpiece on running circular saw - Google Patents

Abstract

PURPOSE:To effect the positioning precisely and store a contact plate smoothly by turning the contact plate from a retreated position to a protruding position of a table surface so that the plate is moved in a feed direction of a screw and comes into close contact with a holder and turning the plate from the protruding position to the retreated position so that the plate is reversely moved and moved apart from the holder. CONSTITUTION:When a contact plate 46 is turned from a retreated position as indicated by an imaginary line to a position as indicated by a solid line, the plate 46 is brought into close contact with the end surface 48 of a holder 39 under the action of a screw and held in a state free from play. The plate 46 is opposed to a scale 37 at the protruding position, and when the plate is caused to slide in the guide direction by loosening a fixing screw 40 of the holder 39, the plate can be set at a desired position according to the indication of the scale 37. And when the plate is turned from the solid line to the imaginary line position, the plate is moved apart gradually from the end surface 48 of the holder under the reverse action of the screw, so that the retreating operation from the surface of a table can be carried out smoothly by small forces.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an abutment ruler device for positioning a workpiece used during cutting with a traveling circular saw.

(Prior Art) A vertical traveling circular saw called a panel saw exists as a processing machine for cutting large-format materials, and is widely used in the furniture industry, joinery industry, etc.

The configuration of this processing machine is as shown in FIG. 7 of the drawings, and will be explained below along with the method of use.

That is, the workpiece 2' supplied onto the horizontal ruler plate 1' at the lower part of the table surface 5' is moved laterally on this horizontal ruler plate 1', and one end is attached to the abutment piece on the side of the table surface. 3'
The object is positioned by hitting the object. Then, at this position, it is pressed and fixed to the table surface 5' by the operation of the holding means 4',
Subsequently, it is cut in the longitudinal direction by a circular saw (not shown) that protrudes from the saw running slit 6' and runs.

As mentioned above, in cutting work with a panel saw, before running the circular saw, set the contact piece 3' at an appropriate position,
It is essential to position the workpiece 2' based on this.

Here, the processing position of the workpiece 2', that is, the cutting width, is determined by the distance dimension of the abutment piece 3' from the saw running slit 6', so that it can correspond to various processing widths. The contact piece 3' can be slid in this width direction. In addition, a plurality of abutting pieces 3' are provided for convenience of use, and only the one in the use position protrudes above the table surface 5', and the other ones are placed inside the table surface 5'. Set it up to be immersive.

Fig. 8 is a detailed view showing the mounting mechanism of the contact piece 3', where 7' is a guide 8 installed in the same direction as the horizontal ruler plate 1'.
' is a holding body 9' that is slidably engaged with the guide 7'.
The stop bolt 10' of the holding body 8' is a bearing part of the holding body 8', and this bearing rotatably supports the contact piece 3' on the part 10' via a metal 11'. 12' is the contact piece 3
The receiver of the holding body 8' is a compressed spring that presses against the stepped portion 13'.
A stop ring 15' of the compression spring 12' is a size indicating scale provided on the guide 7'.

(Problems to be Solved by the Invention) As described above, the abutting piece 3' is selectively operated between the protruding position and the retracted position by manual operation. Therefore,
It is supported with mechanical play within an allowable range for smooth operation.

On the other hand, the workpiece 2' moves laterally on the horizontal ruler plate 1' and is positioned by the abutment piece 3', but if the workpiece 2' is heavy, its inertia causes it to move against the abutment piece 3'. A large lateral load will be applied. This load acts in a direction that closes and eliminates the above-mentioned "backlash", and as a result, the abutment piece 3' is displaced as shown by the imaginary line in the figure. This deviation causes a problem in that cutting dimensional accuracy decreases.

The present invention has been made in view of the above-mentioned conventional problems, and provides a workpiece abutment ruler device with excellent positioning accuracy by eliminating play of the abutment piece at the protruding position, that is, at the use position. (Means for Solving the Problems) In order to achieve the above object, the workpiece abutment ruler device of the present invention is constructed as follows.

That is, the gist of the present invention is to provide a work table having an almost vertical table surface with a vertical saw running slit, and a horizontal ruler plate at the bottom of the working table perpendicular to the saw running slit. A guide is provided on the side of the saw running slit in the same direction as the horizontal ruler plate, and this guide has a position that projects above the table surface and a position that is submerged below the table surface. A traveling circular saw is provided with an abutment ruler member that is slidably adjustable and operates in a switching manner. The present invention consists of a threaded portion extending in the sliding direction, a rotating body screwed into the threaded portion so as to be rotatable, and an abutment plate provided on the rotating body.

(Function) When the abutment plate is rotated from the retracted position on the table surface to the protrusion position, this rotational movement causes the abutment plate to spiral in the feeding direction of the screw section, thereby reducing the distance between it and the holder. In close contact. Therefore, since there is no play between the abutting plate and the holding body in the protruding position, that is, in the use position, there is no reduction in the precision of the set dimensions.

Further, when the abutting plate is rotated from the protruding position to the retracted position in the opposite manner to the above, the abutment plate is screwed back and separated from the holder. Therefore, the contact plate can be retracted to the retracted position with a light operating force while allowing for "backlash".

(Example) One example of the abutment ruler device for a workpiece in a traveling circular saw according to the present invention will be specifically described.

Fig. 1 is a front view of a panel saw equipped with this device. Fig. 2 is a side view of the panel saw. Frame 3 is a table board affixed to the front frame 2 leaving a slight space in the vertical direction at the center of the front fixation. The pair of mounting rib members 5 provided on both sides are blade plates attached to the mounting rib members 4a and 4b, and the blade plate 5 is on the same plane as the table plate 3 described above, and is connected to the blade plate 5. establish. The cutting edge plate 5 is made of a hard synthetic resin plate, light metal, or the like. Reference numeral 6 denotes a single saw running slit bored in the vertical direction of the cutting edge plate 5, and the cutting edge plate 5 is divided into two cutting edge plates 5a and 5b on both sides by this saw running slit 6. .

Reference numeral 7 denotes a horizontal ruler plate disposed at the lower part of the table plate 3 perpendicular to the saw running slit 6, and the workpiece W is placed on the table surface with its lower end received by the horizontal ruler plate 7.

Reference numeral 8 denotes a guide rail with an H-shaped cross section, which is supported by the upper and lower horizontal ribs 1a of the rear frame 1 and arranged on the back surface of the table board 3.
and arranged in parallel with appropriate spacing. Reference numeral 9 denotes a movable base disposed on the guide rail 8 so as to be movable up and down, and the cutting unit B is mounted on this movable base 9.

In FIGS. 5 and 6, 10 is a motor attached to the moving base 9 with the rotating shaft 11 horizontal, and 12 is the rotating shaft 11.
The arm 14 is rotatably provided on a bearing 13 concentric with the arm 12, and the bearing tube 15 is a horizontal gun shaft rotatably supported on the bearing tube 14. The gun shaft 16 is connected to the gun shaft via a flange 17. A circular saw 18 is attached to one end of the arm 12, and when the piston rod is extended, the circular saw 16 is projected onto the table 3 from the saw travel slit 6, and the piston rod is extended. When retracting, the circular saw 16 is retracted from there.

Reference numeral 19 denotes a passive pulley 20 fixed to the gun shaft 15 and a rotating shaft 1.
When the circular saw 16 is in the retracted position, the transmission belt 22 is stretched between the driving pulley 21 fixed to the circular saw 16 and the driving pulley 21 fixed to the circular saw 16
This is a dust collection cover that surrounds the

E is a cutting feed means for moving the cutting unit B up and down;
A pair of sprockets 25 attached to the upper and lower ends of the guide rail 8, respectively, 3 and 24 are chains extended endlessly from the sprockets 23 and 24, and one end of this chain 25 is tied to the movable base 9. 26 is a forward/reverse drive motor linked to the lower sprocket 24 via an appropriate transmission means. This forward/reverse drive motor 26 is
5 in the upward or downward direction, cutting unit B
is transferred in the desired cutting feed direction.

F indicates a holding means for pressing and fixing the workpiece W to the table surface, and 27 indicates a support frame which is U-shaped in side view and is installed on the front side so as to correspond to and straddle the cutting edge plate 5. This support frame 27 The lower end is fixed to the table plate 3 via the slit cover 28, and the upper end is fixed to the table plate 3 via the attachment part 29.

Reference numeral 30 denotes a presser plate movably provided on the support frame 27 by a pair of upper and lower link arms 31.32 denotes a cushion pad 33 affixed to the contact surface with the workpiece W; The pressure cylinder moves the presser plate 30 toward the table surface when the piston rod 34 is retracted, and moves the presser plate 30 away from the table surface when the piston rod 34 is extended.

The workpiece W is pressed and fixed to the table surface during the above-mentioned approach operation.

Next, the workpiece abutment ruler device, which is the main part of the present invention, will be explained. As shown in FIG. 2, this device is mounted using a front frame 2, a mounting bone member 4a, and a transverse bone 4C that connects the two in the left-right direction.

To explain with reference to FIGS. 3 and 4, reference numeral 35 denotes a support member attached to the upper surface of the transverse bone 4C in the same direction as the horizontal ruler plate 7. Inside the support member 35, there is a support member that extends in the left-right direction. A plurality of rows of guides 36 each having a substantially rectangular cross section are formed. a is a slit groove that communicates between the guides 36 and the outside of the support member 35; 37 is a scale in the left-right direction provided on the front side of the support member 35;

Next, 38 is a nut body movably fitted inside the guide 36 in the support member 35. 39 is a slit corresponding to the nut body 38. A block-shaped holder provided on the outside of the upper part of IIa. 40 is a fixing screw of the holder 39 screwed into the nut body 38 through a through hole 41 of the holder 39. 42 is the same as the guide 36 provided inside the holder 39. The threaded hole 43 in the direction has a male threaded portion 44 at one end screwed into the threaded hole 42, and a rotating body 46 with a shaft portion 45 at the other end protruding to the side of the holder 39.
is an arm-shaped contact plate attached to the shaft portion 45 with a set screw 47. The abutment plate 46 is connected to the rotating body 4
3, and moves in the same direction as the guide direction by the threading action during rotation. The aforementioned threaded part (
The screw hole 42 and the male threaded portion 44) allow the abutment plate 46 to approach the end receiving surface 48 of the holder 39 and join together when the abutment plate 46 rotates from the retracted position in the table surface to the protrusion position. The screw direction is set so that it operates (screws forward) in a direction in which it rotates, and operates (screws backward) in a direction away from the end receiving surface 48 when it rotates in the opposite direction.

The rotation range of the abutment plate 46 is restricted by a locking portion 49 formed at the front end of the holder 39, and in this position it protrudes above the table surface and aligns with the scale 37 of the support member 35.
It is designed to correspond to

Since the structure of the workpiece abutment ruler device according to the present invention is as described above, the abutment plate 4 in the retracted position shown by the imaginary line in FIG.
When 6 is rotated to the solid line position, due to the screw action,
This contact plate 46 is in close contact with the end receiving surface 48 of the holder 39,
It is maintained without any play.

In this protruding position, the contact plate 46 corresponds to the scale 37, so by loosening the fixing screw 40 of the holder 39 and sliding it in the guide direction, the contact plate 46 can be set at a desired position according to the instructions on the scale 37. I can do it. After setting, the holding body 39 is fixed by tightening the fixing screw 40.

In this way, the holder 39 is connected to the guide 36, and
If the contact plate 46 is fixed to the holder 39, there will be no play between the constituent members, and accurate positioning can be achieved even when the workpiece W is in contact with the workpiece W.

Furthermore, when the abutment plate 46 is rotated from the solid line position to the imaginary line position, the abutment plate 46 gradually separates from the end receiving surface 48 of the holder 39 due to the retraction action of the screw. Evacuation operations can be performed smoothly with light force.

In the embodiment described above, the male threaded portion 44 on the contact plate 46 side is screwed into the screw hole 424° of the holder 39, but the screwing distance can be changed as appropriate. Therefore, a screw may be provided on the holding body side and a female thread may be provided on the abutment plate side. In this case, the rotating body and the contact plate can be integrally constructed.

Further, in one embodiment, the side surface of the abutting plate 46 is brought into direct contact with the end receiving surface 48 of the holder 39, but in order to reduce wear on both, a thrust bearing is provided at this portion. It is easy to insert anti-friction metal, etc., and can be used as appropriate.

(Effects of the Invention) As described above, the workpiece abutting ruler device according to the present invention can support the ruler plate without looseness when the ruler plate is used in a protruding manner, so that positioning can be performed accurately. In addition, since it is possible to tolerate play while retracting and retracting, the retracting operation can be carried out smoothly.

[Brief explanation of drawings]

The drawings show an embodiment of the abutment ruler device for workpieces in a traveling circular saw according to the present invention, and FIG. 1 is a front view of a panel saw equipped with this device, and FIG. 2 is a side view of the same.
FIG. 3 is a partially vertical front view showing the configuration of the main parts. FIG. 4 is a vertical side view as well. FIGS. 5 and 6 are explanatory views showing the configuration of the cutting unit. FIG. 7 is an explanatory view of a conventional panel saw. FIG. 8 is an explanatory diagram of a conventional abutting ruler device. A: Main body frame B: Cutting unit E: Cutting feed means F: Pressing means W: Workpiece 2: Front frame 3
;Table plate 4a, 4b: Mounting bone member 5 (5a, 5
b): Blade plate 6; Slit for saw running 9: Moving base 16: Circular saw 4c: Horizontal rib 35: Support member 36: Guide 37: Scale a Nislit groove 38: Nut body
39: Holder 40: Fixing screw 41: Through hole 42:
Screw hole 43: Rotating body 44: Male thread 46: Contact plate
47: Set screw 48: End receiving surface

Claims (1)

[Claims] A work table having a substantially vertical table surface is provided with a vertical saw running slit, and a horizontal ruler plate is disposed at the bottom of the working table perpendicular to the saw running slit, Further, a guide is provided on the side of the saw running slit in the same direction as the horizontal ruler plate, and this guide is actuated in a manner that can be switched between a position protruding above the table surface and a position recessed below the table surface. A traveling circular saw is provided with a slidingly adjustable abutting ruler member, which includes a holder that engages the abutting ruler member with a guide so that the sliding adjustment can be made, and a screw in the sliding direction provided on the holder. An abutment ruler device for a workpiece in a traveling circular saw machine, which comprises: a rotating body screwed into the threaded portion so as to be rotatable; and an abutting plate provided on the rotating body.