JPH07237204A - Regulation mechanism for cutting amount of crosscut saw blade in tenoning machine - Google Patents

Abstract

PURPOSE:To easily set up the cutting amount of tenon working by projecting a regulation arm on the side of the driving motor of a crosscut saw blade and movably providing the positioning member equipped with a plurality of stepped parts below the regulation arm and allowing a selected stepped part to abut against the regulation arm and moving the axial center of the saw blade in a circular arc shape. CONSTITUTION:A crosscut saw blade 10, a motor part 11 and a gear 12 are arranged above the bracket 4 of a working head. The motor part 11 is loose- inserted into a holder stuck to the bracket 44 and the crosscut saw blade 10 is rotated in a circular arc shape. A large diameter part 14 is formed in the motor part 11 and allowed to abut against a curved guide plate 15 and positioned. A regulation mechanism is arranged in the horizontal part 17 of the guide plate 15 and constituted of a rotary board 25 and a regulation arm. In the rotary board 25, stopper bolts are screwed in stepped parts having different height. A selected stopper bolt is allowed to abut against the sleeve of the regulation arm. Therefore, the cutting amount of the saw blade 10 is easily regulated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a pair of vertical saw blades each having a drive motor section, and a pair of drive motor sections, respectively, for a machining head that moves up and down along a column erected on a base. The present invention relates to a tenon remover in which a pair of horizontal saw blades arranged in a plane orthogonal shape to the vertical saw blade are provided symmetrically, and the pair of horizontal saw blades are eccentrically supported from the axis of the drive motor unit. .

[0002]

2. Description of the Related Art A vertical saw blade and a horizontal saw blade, which are provided in pairs on a tenon-removing machine, can handle a plurality of types of tenon such as flat, dovetail and comb by adjusting the position and angle of the saw blade independently. It is like this. For example, actual public Sho 63-16
In Japanese Patent No. 483 and Japanese Utility Model Laid-Open No. 1-169304, the other end of a gear case of a horizontal saw blade, which is screwed to a bracket of an elevating body by a tightening frame, is positioned between two bolts protruding from above and below. It is disclosed that the position of the saw blade is changed by contacting either of the bolts by rotating the saw blade. In Japanese Utility Model Publication No. 55-18170, the cylinder portion of the horizontal saw blade is bracketed. By loosely inserting it into the and fixing it with the tightening frame, and loosening the tightening bolts that fix the tightening frame,
It is disclosed that the position of the horizontal saw blade is adjusted by rotating the cylinder portion in the closing frame.

[0003]

The adjustment of the horizontal saw blade performed in the mortise removing machine does not have a standard position for the three types of mortises, and the adjustment is based on the screw tightening amount. Adjustment work is difficult and time consuming. In particular, in the inventions of the above-mentioned two persons, the workability is worse because the adjustment is made separately by the screws at the two upper and lower locations. For example, the horizontal saw blade was once removed from the bracket for polishing and then reattached after polishing. Even in cases such as 2
Adjustment work using a book screw is required, and the troublesomeness is unavoidable.

[0004]

SUMMARY OF THE INVENTION Therefore, the present invention provides a horizontal saw blade cutting amount adjusting mechanism of a tenon slicing machine which has a simple structure and facilitates adjustment work. The drive motor unit is held on the bracket of the machining head so as to be rotatable in the circumferential direction and fixable to the bracket at an arbitrary position, and an adjusting arm is provided on the side of the drive motor unit so as to project at a right angle to the axial direction. On the bracket below the adjustment arm, a positioning member having a plurality of step portions each having a different height is provided so as to be horizontally movable, and one step portion selected by the movement of the positioning member is brought into contact with the adjustment arm. The invention is characterized in that the drive motor unit is rotated in the circumferential direction to move the axis of the horizontal saw blade in an arc, and in addition to the present invention, the adjusting arm is integrally attached to the drive motor unit. The shaft and the shaft is loosely inserted, A structure in which the core is composed of a sleeve that is eccentric with the shaft center of the shaft portion, and the positioning member is a disk member in which a plurality of bolt members having different heights are vertically erected on the circumference. Is.

[0005]

When the positioning member is moved to bring the adjustment arm of the drive motor into contact with the selected step, the drive motor rotates, and the shaft center of the horizontal saw blade that rotates around the drive motor is moved in an arc. Let The horizontal saw blade can be easily set at a predetermined mortise processing position by arbitrarily selecting this step. Further, since the adjusting arm is composed of the shaft portion and the sleeve, when the sleeve is rotated while the adjusting arm is in contact with the stepped portion, the height of the adjusting arm changes by the thickness of the eccentric sleeve, Fine adjustment of the saw blade is possible. Further, the positioning member is a disk member screwed with a bolt member, so that the predetermined height of the adjusting arm can be easily selected by rotating the disk member, and the operability is excellent. Since the height of the member itself can be changed, the selection range of the depth of cut is expanded.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, the mortise removing machine 1 has a pair of columns 2 and 2 standing on a base (not shown), and a processing head 3 that moves up and down along the columns 2 and 2. Vertical saw blades 5, 5 and their driving mechanism, and a pair of horizontal saw blades 10,
10 and its drive mechanism are provided respectively. Since the vertical and horizontal saw blades and the respective drive mechanisms are symmetrically provided, the saw blade on the left side of the processing head 3 will be described below. A vertical saw blade 5, a motor unit 6 and a gear unit 7 which are driving mechanisms for the vertical saw blade 5 are arranged below the bracket 4 of the machining head 3, and an operation handle 8 which vertically protrudes above the bracket 4 is arcuate in a horizontal direction. By sliding it to, the base plate 9 fixed to the lower surface of the bracket 4 is rotated as a guide, and the angle of the vertical saw blade 5 attached to the motor unit 6 via the gear unit 7 can be arbitrarily adjusted. There is. On the other hand, a horizontal saw blade 10 and a motor portion 11 and a gear portion 12 which are its driving mechanism are arranged above the bracket 4, and as shown in FIG. 2, the cylindrical motor portion 11 is fixed on the bracket 4. It is loosely inserted in the holder 13 so as to be rotatable and axially slidable. Further, the horizontal saw blade 10 moves from the shaft center of the motor unit 11 to the gear unit 12
1 is mounted at a position slightly eccentric to the lower right in FIG. 1, and by rotating the motor part 11 in the holder 13 in the circumferential direction, the horizontal saw blade 10 is centered on the axis of the motor part 11. It rotates in an arc shape and its vertical tangent can be moved. Further, a large diameter portion 14 is integrally formed on the side of the horizontal saw blade 10 of the motor portion 11, and a curved surface portion 16 of a guide plate 15 curved along the outer peripheral surface of the large diameter portion 14 is in contact with the outer periphery thereof. The guide plate 15 further descends from the curved surface portion 16 and is bent, and the horizontal portion 17 is placed on the upper surface of the bracket 4.
And the bracket 4 from the horizontal portion 17
It has a positioning plate 18 bent at a right angle at its end.
The positioning plate 18 has a U-shaped notch 1 shown in FIG.
A groove 20 provided in the hexagonal head portion of the positioning bolt 19 is engaged with 8a, and a screw portion 19a of the positioning bolt 19 is screwed to the bracket 4. Therefore, when the positioning bolt 19 is rotated, the integrated positioning plate 18 also slides in the left-right direction in FIG. 2 with respect to the bracket 4, and at the same time, the guide plate 15 slides integrally. On the other hand, a fixing screw 21 is screwed on the curved surface portion 16 of the guide plate 15, and the fixing screw 21 penetrates a long hole 16a provided in the circumferential direction of the curved surface portion 16 as shown in FIGS. And the pressing portion 2 having a diameter larger than the width of the long hole 16a in the lateral direction.
3 and a grip portion 21a, and the screw portion 22 is screwed into the screw hole 14a and tightened, thereby pressing the pressing portion 23.
The curved surface portion 16 is sandwiched between and the outer circumference of the large diameter portion 14, and the large diameter portion 14 and the curved surface portion 16 of the motor portion 11 can be fixed at that position.

An adjusting mechanism 2 is provided on the side of the motor unit 11.
4 are arranged. The adjusting mechanism 24 is composed of a turning plate 25 on the horizontal portion 17 of the guide plate 15 and an adjusting arm 26 which is integrally provided so as to project laterally from the motor unit 11. First, the turning plate 25 will be described. As shown in FIG. 3, a bolt 29 is loosely inserted into a through hole 28 that is vertically formed in the center of the plane-shaped base 27, and the tip of the bolt 29 has a horizontal portion 17.
A coil spring 31 around which the bolt 29 is wound is arranged between the head of the bolt 29 and the step portion 30 formed on the outer periphery of the through hole 28 while being screwed in. Therefore, the turntable 25
Is integral with the horizontal portion 17 and rotatable about the bolt 29. Normally, the horizontal portion 17 is rotated by the coil spring 31.
It will be pressed to the side. Further, on the base 27, mounting seats 32a to 32c each having a bolt hole are projectingly provided at positions where the circumference around the bolt 29 is divided into three equal parts, the mounting seats 32a to 32c having different heights. 32c includes stopper bolts 34a to 34b for positioning the height of the adjusting arm 26.
34c are respectively screwed. In the present embodiment, the stopper bolt 34a screwed to the highest mounting seat 32a is for a flat tenon, and the stopper bolt 34b screwed to the rear mounting seat 32b for an intermediate height is for a tenon with an intermediate cutting amount. , And the stopper bolt 3 screwed to the lowest mounting seat 32c
4c is set for each of the tenon with the deepest cutting amount. Next, the adjustment arm 26 positioned by the stopper bolts 34a to 34c includes a fixing bolt 35 integrally screwed to the motor portion 11, and a sleeve 37 rotatably attached to a screw portion 36 of the fixing bolt 35. Consists of
The sleeve 37 integrally has a ring portion 33, which is the center of rotation, at the end on the large diameter portion 14 side, and is positionally regulated between the head portion 38 of the fixing bolt 35 and the large diameter portion 14. ,
The guide plate 15 penetrates through the elongated hole 15a and projects laterally, and as shown in FIG. 4, the shaft center of the guide plate 15 is eccentric to the shaft center of the screw portion 36. Thus, in the adjusting mechanism 24,
The motor portion 11 is rotatable in the circumferential direction with the fixing screw 21 loosened, and when the motor portion 11 is rotated downward, the sleeve 3 is rotated.
On the lower surface of 7, the stopper bolts 34a to 3a of the rotary plate 25 are provided.
One of the heads 4c abuts. Furthermore, in this case, as a click of the rotation position of the stopper bolts 34a to 34c, the horizontal portion 1 immediately below the sleeve 37 is clicked.
The rivet 39 is driven on the rotation locus of the stopper bolts 34a to 34c of No. 7 and the rivet 39 is inserted into any one of the bolt holes of the mounting seats 32a to 32c by rotating the turntable 25.
The heads of are fitted and the proper positions of the stopper bolts 34a to 34c can be confirmed.

In the mortise removing machine 1 constructed as described above, first, the fixing screw 21 is loosened to set the motor portion 11 in a free state with respect to the guide plate 15, and the rotary plate 25 is rotated to set a predetermined stopper bolt. select. When performing flat mortise processing, if the base 27 is gripped and rotated so that the highest stopper bolt 34a comes to the position of the rivet 39, the turntable 25 is moved by the click action of the bolt hole and the rivet 39. Fixed in position. And the adjusting arm 26
When the sleeve 37 is gripped and lowered to a position where the sleeve 37 comes into contact with the stopper bolt 34a, the vertical tangent line of the horizontal saw blade 10 substantially coincides with the vertical tangent line of the vertical saw blade 5, as shown by the solid line in FIG.
Both saw blades are orthogonal to the plane L shape. Finally, when the fixing screw 21 is tightened, the horizontal saw blade 10 can be fixed to the bracket 4 via the guide plate 15, and the processing head 3 is lowered to perform flat tenon processing. Next, when performing the mortise processing, loosen the fixing screw 21 and select one of the lower two types of stopper bolts 34b and 34c of the rotating plate 25. When the fixing screw 21 is tightened at the position where it comes into contact with the head of the stopper bolt, the horizontal saw blade 1 is rotated along with the left rotation of the motor unit 11.
0 is fixed at a position where its axis moves circularly to the left in FIG. 5 about the motor portion 11, that is, at a position where both saw blades intersect in a plane T shape, and the intermediate stopper bolt 34
It is possible to select a mortise mortise processing position (shown by a chain double-dashed line) having a shallow depth of cut by b, and a mortise mortise processing position (shown by a double-dot chain line) having a deepest depth of cut by the lowest stopper bolt 34c.
Also, by changing the initial height setting of the stopper bolts 34b and 34c, it is possible to select the mortise and tenon having another cutting amount.
As described above, according to the present embodiment, the adjustment of the horizontal saw blade 10 can be easily performed by anyone with one touch by only operating the rotary plate 25 and the sleeve 37 at the same position, and the adjustment work can be completed in a short time. Particularly for a skilled person, the mortise processing can be performed only by selecting the stopper bolts by the turntable 25, and the work can be further shortened. In that case, the sleeve of the adjusting arm 26 is unnecessary. Further, even if the saw blade is removed and then reattached by polishing the saw blade, only the fine adjustment of the sleeve 37 is required, and it is not necessary to readjust the stopper bolt of the rotary plate 25 from the beginning, and time and labor are required. Can be greatly simplified.

In the above embodiment, the rotary disk is a disk composed of three stopper bolts. However, instead of the rotary disk, a base that can be slid to the left and right is provided, and a plurality of stopper bolts are aligned on the base. It is possible to change the design of the shape such that the stopper bolts are selected by arranging them side by side and sliding the base. Further, instead of the stopper bolt, a plurality of stepped portions may be integrally provided on the base, and the shape of the stopper bolt, the number thereof, the height, etc. can be changed appropriately.

[0010]

As described above, according to the present invention, anyone can easily adjust the depth of cut by operating the adjusting arm and the positioning member arranged at one place, which shortens the time and simplifies the work. Can be achieved. Of course, the structure of the adjusting mechanism is simple and does not cost much. Further, since the eccentric sleeve of the adjusting arm enables fine adjustment, it is possible to cope with fine adjustment caused by abrasion of the saw blade or the like with a simple operation. Furthermore, since the positioning member is configured by a bolt member screwed to the disc member, in addition to being excellent in operability, the height of the bolt member can be changed,
The cutting amount for all mortise processing can be set with one disk member.

[Brief description of drawings]

FIG. 1 is an explanatory view of a mortise picking machine according to the present invention.

FIG. 2 is an explanatory diagram of a horizontal saw blade.

FIG. 3 is an explanatory diagram of a cutting amount adjusting mechanism of a horizontal saw blade.

FIG. 4 is an explanatory diagram of a sleeve.

FIG. 5 is an explanatory view showing an operating state of a horizontal saw blade by a cutting amount adjusting mechanism.

[Explanation of symbols]

1 ・ ・ Morning machine, 2 ・ ・ Column, 3 ・ ・ Processing head,
4 ... Bracket, 5 ... Vertical saw blade, 6 ... Motor part, 7
..Gear parts, 8 ... Operating handles, 9 ... Base plates, 1
0 ... Horizontal saw blade, 11 ... Motor part, 12 ... Gear part, 1
3 ... Holder, 14 ... Large diameter part, 15 ... Guide plate,
16 ・ ・ Curved part, 17 ・ ・ Horizontal part, 18 ・ ・ Positioning plate, 19 ・ ・ Positioning bolt, 20 ・ ・ Groove, 21 ・ ・ Fixing screw, 22 ・ ・ Screw part, 23 ・ ・ Pressing part, 24 ・ ・Adjustment mechanism, 25 ... Rotating plate, 26 ... Adjustment arm, 27.
· Base, 28 · · Through hole, 29 · · Bolt, 30 · · Step, 31 · · Coil spring, 32a to c · · Mounting seat, 33
..Ring bodies, 34a-c .. ・ Stopper bolts, 35 ・
・ Fixing bolts, 36 ・ ・ Screw parts, 37 ・ ・ Sleeve, 3
8 ... Head, 39 ... Rivet.

Claims (3)

[Claims] 1. A pair of vertical saw blades, each having a drive motor section, and a pair of vertical drive blade sections, each having a drive motor section, to a machining head that moves up and down along a column erected on a base, and a plane to the vertical saw blade. A tenon remover in which a pair of transverse saw blades arranged orthogonally is provided symmetrically, and the pair of transverse saw blades are supported eccentrically from the shaft center of the drive motor unit. The motor part is held on the bracket of the machining head so that it can be rotated in the circumferential direction and can be fixed to the bracket at an arbitrary position, and an adjustment arm is provided on the side of the drive motor part at a right angle to the axial direction while adjusting. On the bracket below the arm, a positioning member having a plurality of step portions each having a different height is provided so as to be horizontally movable, and by contacting one step portion selected by the movement of the positioning member with the adjustment arm, Rotate the drive motor in the circumferential direction to cut the horizontal saw blade. A horizontal saw blade cutting depth adjustment mechanism for a mortise remover, which is characterized by moving the axis of the arc in a circular arc. 2. The adjusting arm includes a shaft portion integrally attached to the drive motor portion, and a sleeve that is loosely inserted in the shaft portion and has its shaft center eccentric to the shaft center of the shaft portion. A horizontal saw blade cutting amount adjusting mechanism of a mortise removing machine according to claim 1. 3. The tenon according to claim 1 or 2, wherein the positioning member is a disk member in which a plurality of bolt members having different heights are vertically screwed on a circumference. Horizontal saw blade cutting amount adjustment mechanism of the machine.