JPH0356321Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a long tenon machining device that is equipped with a horizontal machining tool and a vertical machining tool and can easily and efficiently form a long tenon having an end face perpendicular to the longitudinal axis.

[Background technology]

Workpieces such as architectural frames often have long tenons formed at their ends for fitting with other members.

At this time, the conventional long tenon machining device used one rotary cutter C and aligned the center of the cutter C vertically with the longitudinal axis of the workpiece W, as shown schematically in FIG. SB end face
The SC was recessed into an arc shape that matched the shape of the rotating cutter C. In addition, the length of the long tenon SB changes depending on the feeding amount of the rotary cutter C, and therefore, the depth dimension of the long tenon SB changes due to variations in the feeding amount. Even when mounting, since the end face SC is recessed, alignment is likely to be difficult and inaccurate, resulting in poor mounting accuracy. There is also the problem that when the center of the rotary cutter C is not correctly aligned with the longitudinal axis center of the workpiece W, the upper and lower vertices of the end face SC are displaced back and forth.

[Purpose of invention]

The present invention is based on machining a notch groove in advance on the side surface of the workpiece using a horizontal processing tool, and can form the end face of a long tenon perpendicular to the central axis of the workpiece.
The object of the present invention is to provide a long tenon machining device that improves machining accuracy, allows correct alignment with other members, and solves the above-mentioned problems.

[Disclosure of invention]

An embodiment of the present invention will be described below based on the drawings.

In the figure, a long tenon machining device 1 is used to machine a long tenon S extending inward from the tip along the longitudinal axis at the end of a workpiece W, and the device 1 includes:
A workpiece transfer device 2 that conveys the workpiece W in a direction perpendicular to the longitudinal axis and extending beyond the end where the long tenon S is formed, and a workpiece transfer device 2 that extends in the direction perpendicular to the longitudinal axis of the workpiece W at the inner end of the long tenon 2. A horizontal processing tool 22 that includes a first rotary cutter 21 that forms a notched groove G
and a second rotary cutter 23 that can be raised and lowered to form a long tenon S by moving to the notched groove G.
Further, the work transfer device 2 includes a vertical processing tool 24 having a stopper 4, respectively, and an endless chain 7, 7 having a dog 6, respectively, on the transfer table 3. , Rack 10 for attaching to the telescopic tool 9
A drive machine 11 equipped with a drive unit 11 is disposed to move the workpiece W intermittently.

Note that the protruding length of the extendable tool 9 can be adjusted using a detector 13.

Further, the workpiece transfer device 2 includes the workpiece transfer device 2.
A workpiece processing device A is provided across the workpiece W to perform processing such as partial surface finishing and perforation on the workpiece W.

The transfer table 3 consists of a pair of transfer table pieces 31 and 32 that are long and have a rectangular cross section, and the upper surfaces of the transfer table pieces 31 and 32 are formed horizontally and at the same height. Further, the workpiece W is oriented horizontally with its longitudinal axis orthogonal to it, and one end where the long tenon S is formed is placed on the transfer table piece 3.
2, and from the upstream side X to the downstream side Y, the dog 6 of the endless chain 7...
It is transported while sliding.

The endless chain 7 is connected to the upstream side X and the downstream side Y of the transfer table 3.
For example, a chain is used, which is wound around rotating bodies 34, 34, 35, and 35 disposed in the conveyor table, and circulates close to the inner surfaces of each of the transfer table pieces 31 and 32.

The rotating bodies 34, 34 are the transfer table pieces 31, 32.
The rotating body 35,
35 is fixed to a support shaft 42 that spans a long protrusion 40 and a short protrusion 41 that protrude from the end face on the downstream side Y. The dogs 6 of the endless strings 7, 7 each include three dogs 6A, 6B, 6C attached toward the upstream side X at a constant pitch.

The dog 6 is a U-shaped frame 4 fixed to the endless string 7.
4, and an abutment piece 4 that is tiltably pivoted within the groove.
5, the piece 45 stands upright and protrudes from the upper surface of the transfer table 3 when the endless chain 7 moves forward from the upstream side X to the downstream side Y, while when moving in the backward direction, the piece 45 It tilts due to the collision with W, and its interference can be prevented.

By fixing the pinion 12 to the end of the support shaft 42 that protrudes from the projecting piece 40, the pinion 12 is linked to the rotating bodies 35, 35,
The pinion 12 is also driven by the drive machine 11.

The driving machine 11 has a long rack 10 attached to the rod of the telescopic tool 9, which is a cylinder, for example, installed on the side of the transfer table piece 31, and teeth provided on the lower surface of the rack 10 mesh with the pinion 12. do.
The rack 10 is reciprocated to the upstream side
can be driven in forward and reverse directions, and therefore the support shaft 42 and the rotating body 35
The dogs 6 can be reciprocated in the same direction via. In addition, in the upright state, the dogs 6 protrude from the upper surfaces of the moving table pieces 31, 32, so that when moving forward, the dogs 6 push the rear surface of the workpiece W, and move the workpiece W forward.
By colliding with the dock 6 and tilting, the workpiece W is moved intermittently every time the dock 6 reciprocates over a predetermined distance by passing under the workpiece W positioned behind the advanced workpiece W. The distance can be transferred to .

The rack 10 has guide wheels 51, 51 arranged on both sides thereof, each having guide wheels 50, 50 each having a middle cylindrical part that rolls on the side surface thereof and an outer cylindrical part that meets the top and bottom surfaces of the middle cylindrical part. They are arranged on both sides of the pinion 12. The rack 10 can come into contact with the detector 13 due to its protrusion, and restricts the protrusion length of the extendable tool 9.

The detector 13 is, for example, a microswitch, and can be fixed at variable positions on the upstream side X and the downstream side Y by an adjuster 52.

The adjuster 52 includes a guide shaft 54 installed between support pieces 53 and 53 provided laterally at the tip and intermediate position of the projecting piece 40, and a movable piece 5 that slides on the guide shaft 54.
5, the detector 13 is mounted on a moving piece 55,
Its working end is fixed upward. Also, moving piece 55
can be fixed in any position using screws, and detector 1
The working end of 3 can abut the tip of the protruding rack 10. This allows the reciprocating distance of the rack 10 to be adjusted.

The positioning tools 5 are disposed on the outer surfaces of the transfer table pieces 31 and 32, facing each other across the attachment pitches of the dogs 6.

The positioning tool 5 uses a cylinder that fixes the rod constituting the stopper 4 upward, and when the cylinder is extended, the stopper 4 can be projected from the upper surface of the transfer table 3, and when it is contracted, it can be retracted. Further, the stopper 4 includes two stoppers 4A and 4B arranged toward the upstream side X. As a result, the stoppers 4A, 4B protrude and collide with the workpiece W that is intermittently fed by the dog 6 of the transfer table 3, thereby correctly positioning the workpiece W at the positions of the stoppers 4A, 4B. The mounting position of the positioning tool 5 can be adjusted to the upstream side X and the downstream side Y by bolting the cylinder mounting support piece 57 through an elongated hole provided in the support piece 57.

Further, in the vicinity of each upstream side of the positioning tool 5, processing tools 59 of the workpiece processing device A are provided above.

Each workpiece processing device A has a frame body 63 that spans between a support 61 erected approximately in the center near the transfer table 31 and a support 62 erected facing each other at a position away from the transfer table 32. , and the frame body 63 is connected to each support column 6.
1 and 62, it can be moved up and down with the rotation of the handles 64 and 64 at the upper ends thereof. Further, the frame body 63 has a guide groove 6 recessed in the horizontal direction above each transfer table piece 31, 32.
5... arms 66... are pivotally supported so as to be able to move laterally, and the processing tool 59 is fixed at each tip.
Note that the arm 66 has support pieces 69 on both sides of the guide groove 65.
The screw shaft that pivots at
The horizontal position can be adjusted by operating 0.

The processing tool 59 has an electric motor M attached to the upper end of a support frame 72 fixed vertically at the tip of the arm 66, and is engaged with the electric motor M at the lower end so as to be movable up and down.
A cutting tool 74 such as a drill or a milling cutter is provided.

Further, each of the processing tools 59 is provided with a clamping tool 77 at an inner position thereof. The clamp tool 77 has a joint shaft 83 which is guided by a support piece at the lower end of a rod of a cylinder 79 provided on an inward projecting piece at the upper end of the support frame 72 and has, for example, a circular pusher piece 81 at the lower end.
The workpiece W can be clamped by pressing the workpiece W against the transfer table 3 with the push piece 81 by the extension of the cylinder 79.

Note that a long hole 75 for receiving a penetrating cutter 74 such as a drill is formed in the upper surface of the transfer table pieces 31 and 32, and a first rotary cutter 21 is provided on the outside of the transfer table piece 32. A horizontal machining tool 22 and a vertical machining tool 24 equipped with a second rotary cutter 23 are attached, and in this embodiment, in order to machine long tenons S and S on both sides of the end of the workpiece W, two machines are installed. Horizontal processing tool 2
2 and 22 are used, and 2 is used for the vertical processing tool 24.
Two second rotary cutters 23, 23 are attached.

As shown in FIGS. 1 to 3, the vertical processing tool 24 has a rail 91 laid in a direction perpendicular to the transfer table piece 32.
The frame base 92 is provided with a frame base 92 for traveling. The frame 92 is provided with a slide piece 97 that moves back and forth in the upstream side The second rotary cutter 2 is attached to the slide piece 99 that engages with the slide piece 97 in a vertically movable manner.
Electric motors M1 and M1 to which the motors 3 and 3 are fixed are fixed.
Further, the upper end of a rod of a lifting tool 101 such as a cylinder installed upright on the bottom plate 93 is fixed to the slide piece 99, and the rod of a push tool 103 such as a cylinder fixed to the floor surface is fixed to the frame base 92, respectively. As a result, the second rotary cutter 23 can be raised and lowered by expanding and contracting the elevating tool 101 and the pushing tool 103, and can also move vertically toward the transfer table piece 32.

The support piece 94 and the slide piece 97, and the slide piece 97 and the slide piece 99 are engaged with each other using, for example, a T-shaped dovetail groove and a protrusion piece that fits into the dovetail groove. The vertical machining tool 24 includes a small receiving piece 104 that protrudes outward with its upper surface aligned with the transfer table piece 32.
The second rotary cutters 23, 23, which move around the center and rotate in a plane perpendicular to the transfer table 3, can be moved along both sides of the receiving piece 104.

Note that the receiving piece 104 is narrower in width than the work W by the depth of the long tenons S, S so that the long tenons S, S of a predetermined depth can be formed on both sides of the work W with the minimum width. The slide piece 97 is fixed using a bolt.

The horizontal processing tool 22 is attached to the back plate 10 of a frame 110, which has a back plate 109 erected on a bottom plate 107 that moves on rails 106, 106 arranged parallel to the transfer table 3.
9 has a slide piece 111 that moves in a direction perpendicular to the transfer table 3, and a slide piece 112 that is attached to the slide piece 111 so as to be able to move up and down. an electric motor M that fixes the first rotary cutter 21 rotating within a plane;
2 is fixed. The slide piece 111 can be moved up and down by the lifting tool 115, and the first rotary cutter 21 has notched grooves at the roots of the long tenons S, S formed on the workpiece W, as shown in FIG. form G. In this example, the horizontal processing tool 2
2, the notch grooves G, G can be formed on both sides of the workpiece W that is stopped by the upstream stopper 4B.

Note that another clamping tool 117 is provided above the receiving piece 104.

The clamp tool 117 has a cylinder 121 erected by a mounting piece 120 at the tip of an arm 119 fixed to the frame 63, and has a long piece slightly narrower than the receiving piece 104 at the lower end of the downward rod. A shaped push piece 122 is fixedly provided. Note that the push piece 122 is
By protruding a guide shaft 123 into which the mounting piece 120 is inserted loosely, the guide shaft 123 is aligned in the same direction as the receiving piece 104.

However, as shown in FIG. 4, the stoppers 4A and 4B of the positioning tool 5 respectively protrude and
In a state where the workpiece W is positioned with its downstream Y end surface in contact with A, 4B, the drive machine 11
to drive. The driving machine 11 moves the rack 10 after the stopper 4 is lowered, as shown in FIG.
By moving the detector 13 until it comes into contact with the
The rack 10 is connected to the rotating body 35 via the pinion 12.
35 and rotates the endless chain 7, the dog 6A on the downstream side Y carries out the workpiece W positioned on the stopper 4A toward the downstream side Y. Further, the dog 6B advances until the work W stopped by the stopper 4B comes into contact with the stopper 4A. Further, the dog 6C can move the workpiece W newly loaded onto the transfer table 3 to the front end of the stopper 4B. In addition, by contracting the extendable tool 9, the driving machine 11 causes the dogs 6A and 6B to collide with the workpiece W held by the push pieces 81 of the clamping tool 77, and tilt the workpiece W as described above. It returns to the original position shown in Fig. 4.

Also, the width w1 of the workpiece W is smaller than the width w1 of the workpiece W.
When transferring a workpiece W having a large value of 2, as shown in FIG. 7, the movable piece 55 of the adjuster 52 is moved to the upstream side X to reduce the protruding length of the extendable tool 9.

In addition, by subtracting the length l1 from one branch piece 53 to the moving piece 55 shown in FIG. 5 to l2 shown in FIG. 7, the circumferential length of the pinion 12 corresponding to the difference length, Reduce the rotation angle of pinion 12. Therefore, the dog 6 moves a distance L2 that is shorter than the moving distance L1 of the dog 6 shown in FIG. , and can be correctly moved and positioned to a position where it abuts against the stopper 4.

By moving the detector 13 in this manner, it is possible to accurately position the workpiece W of any width.

Further, the processing tool 59 of the workpiece processing device A performs drilling, surface finishing, etc. using the cutting tool 74 while being held by the clamp tool 77.

The long tenon machining device 1 processes long tenons S, S on the end portion of the workpiece W.

The horizontal processing tool 22 extends its lifting tool 115 when the workpiece W is positioned by the stopper 4B,
The first rotary cutters 21, 21 can form the notch grooves G, G extending vertically in a direction perpendicular to the longitudinal axis at the inner end of the long tenon S of the workpiece W pressed by the clamp tool 77. This results in
The inner end surface is a flat vertical surface.

Note that the frame 110 can be moved according to the width of the workpiece W, and the position of the slide piece 111 can be adjusted according to the position of the base.

Further, the workpiece W is positioned at the center of the receiving piece 104 and with the width of the long tenon S protruding to the side by coming into contact with the stopper 4A. Further, it is pressed and clamped by the pressing pieces 81, 122 of the clamping tools 77, 117.

The vertical processing tool 24 extends the lifting tool 101 to align the center of the second rotary cutter 23 with the center line of the workpiece W, and then extends the pushing tool 103 to align the center of the second rotary cutter 23 with the center line of the workpiece W.
By moving the rotary cutter 23 along the longitudinal axis of the workpiece W from the end surface of the workpiece W to the notch groove G, as shown in FIG.
A long tenon S extending up to the length can be formed on both sides of the end of the workpiece W. After processing, the second rotating cutter 2
By lowering and retracting 3, the next workpiece W can be brought in more quickly.

In addition, depending on the width of the workpiece W, the slide piece 97
can be moved to the upstream side X and downstream side Y.

In addition, since the long tenon S has a notched groove G formed in advance, the end surface of the long tenon S is
SA is perpendicular to the longitudinal axis, and therefore a long tenon is formed by only the longitudinal direction of the rotary cutter C, as shown in FIG.
This prevents the arc-shaped end face SB that is formed in the case of SB.

[Effect of idea]

As described above, the long tenon machining device of the present invention includes a work transfer device, a horizontal machining tool including a first rotary cutter that moves up and down to form a notched groove, and a horizontal machining tool that moves up to the notched groove to form a long tenon. This machine is equipped with a vertical processing tool equipped with a second rotary cutter to form a long tenon with a notch groove formed in advance, which improves the precision of forming the long tenon, and also allows the end face of the long tenon to be 11
Arc surface SC like the conventional one explained by the figure
This results in a flat surface perpendicular to the longitudinal axis of the workpiece, and therefore the accuracy of positioning by the end surface can be improved when joining other members. In addition, since the horizontal processing tool and the vertical processing tool are installed side by side, the workpiece can be processed by sequential feeding, improving production efficiency. By making it possible to retreat in this state, it is possible to carry in the next workpiece, which can bring about many effects such as further improving work efficiency.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing one embodiment of the present invention;
The figure is a plan view showing the main parts, Figure 3 is a front view, Figures 4 to 7 are diagrams showing the action of the work transfer device, and Figures 8 to 9 are plan views showing the machining process of a long tenon. , FIG. 10 is a front view illustrating a workpiece in which a long tenon is formed, and FIG. 11 is a diagram schematically illustrating processing by a conventional apparatus. 2... Work transfer device, 21... First rotating cutter, 22... Horizontal processing tool, 23... Second rotating cutter, 24... Vertical processing tool, G... Notch groove, S...
...Long tenon, W...work.

Claims (1)

[Scope of utility model registration request] A long tenon processing device that forms a long tenon on the side surface of the workpiece that extends inward from the tip along the longitudinal axis at the end of the workpiece, the long tenon extending beyond the end where the long tenon is formed and that extends inward from the longitudinal axis. a workpiece transfer device that transports the workpiece in orthogonal directions; and a first movable up-and-down device that is located on the side surface of the workpiece and at the inner end of the long tenon and forms a notch groove in the direction orthogonal to the longitudinal axis. A horizontal machining tool equipped with a rotating cutter, and a second rotating cutter that moves from the tip of the workpiece along the longitudinal axis of the workpiece to the notched groove to form a long tenon extending from the tip to the notched groove. A long tenon processing device consisting of a vertical processing tool.