JPH08229724A - Grooving tool - Google Patents

Abstract

PURPOSE: To move a machining tool according to swell of a workpiece by mounting in a guide block an arm for sliding and fixing in nearly perpendicular direction in horizontal plane to a guide member and mounting a groove cutting tool vertically movable on the supporting member rotating about an arm shaft in an end part of the arm. CONSTITUTION: When a cutter supporting device turns and a grooving tool 50 is moved manually along a guide member 10, a V groove of designated depth is machined by the cutter. When there is a waviness in the workpiece during machining the V groove, the V groove cutting tool 50 is rotationally moved or vertically moved along the waviness of the workpiece by a mounting/ demounting device part 30 or a sliding part between a supporting member 40 and a main body along the waviness of the workpiece. Whereby, the V groove of accurate depth is always machined. Thus the V groove of accurate depth is machined following the workpiece and also the device is minimized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grooving tool for machining V-grooves on a flat plate, and more particularly to a plate member which can machine a large number of V-grooves in parallel and has a large swell. Also relates to a small grooving tool capable of forming a V groove or the like having an accurate depth while following the swell.

[0002]

2. Description of the Related Art Conventionally, when a steel sheet is angled and bent, a V groove is previously formed on the steel sheet and the bending operation is performed along the groove. At present, a large stationary machine is known as such a grooving machine.

The construction of this large stationary groove processing machine is disclosed in Japanese Patent Publication No.
A simple description will be given by taking the example described in JP-A-6-10277 as an example. In FIG. 7, 110 is a support,
A pillar 111 is erected on the support 110,
A frame member 112 is fixed to the column 111. A jack 114, which can be moved up and down by a vertical control lever 113, is provided on a support 110 corresponding to a central portion surrounded by a frame member 112.
15 is attached. A handle 1 is provided on the upper base 115.
A motor 117 that can move in the left-right direction in the drawing is provided by 16, and a cutting blade 119 is attached to a rotation shaft 118 of the motor 117. On the other hand, cutting blade 11
An elevated bar 120 fixed on a support column 111 is provided above 9
A control gear 121 is provided which can be slidably positioned along the. With the position of the blade 119 and the position of the control shaft 121 adjusted, a plate member (workpiece) 122 as a work piece is inserted into a gap between the two in a direction perpendicular to the paper surface.
The V-groove is machined into a predetermined shape on the plate by the cutting blade 119 rotated by the rotational force of 17.

[0004]

However, since the stationary groove-growing machine as described above is a large-sized machine, it is expensive and requires a large installation space, and the amount of investment for this is also large. Therefore, it was not possible to easily purchase the machine. Therefore, an object of the present invention is to solve the above problems by providing a small-sized and inexpensive grooving tool that can be installed in a relatively small space. Further, in the present machining tool, even if the workpiece has a large undulation, the machining tool can move while following the undulation, so that highly accurate V groove machining can be performed.

[0005]

In order to achieve the above object, the present invention is capable of slidably and fixing an arm to a guide block which moves while being guided by a guide member in a direction substantially perpendicular to the guide member in a horizontal plane. A groove cutting tool is provided at the end of the arm so as to be rotatable about the arm shaft and movable up and down, so that the tool body can make a groove in parallel and evenly with the guide member. The present invention resides in a grooving tool, which is a means for solving the problems.

[0006]

The V-groove cutting tool is positioned by setting the rail base of the grooving tool on the workpiece and adjusting and fixing the protruding amount of the arm so that the cutting blade is located at the position for grooving. In addition to this, the protrusion amount of the cutting blade from the adjusting plate is adjusted. After setting the grooving tool on the work piece, the operator holds the knob attached to the cutting section body and the drive section body with a built-in motor, and after adjusting the drive section body to an angle that is easy to work When the drive unit body with a built-in motor is turned on, the blade support member rotates, and when the grooving tool is manually moved along the guide member, the V-groove with a predetermined depth is machined by the corner of the blade. You can After the processing is completed, if the protrusion amount of the arm is adjusted, a large number of V grooves parallel to the previously processed V groove can be similarly processed. Further, when the workpiece has swelling during V-groove machining, the V-groove cutting tool uses the V-groove along the swelling of the workpiece by the attaching / detaching device portion or the sliding portion between the support member and the main body. Since the cutting tool rotates or moves up and down and follows along the swell of the workpiece, it is possible to always machine the V groove with an accurate depth.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A grooving tool according to the present invention will be described below with reference to the drawings. FIG. 1 is a plan view of the grooving tool according to this embodiment, and FIG. FIG. 3 is a sectional view taken along the line A-A in FIG.
5 is a sectional view taken along the arrow C, FIG. 4 is a sectional view taken along the arrow EE in FIG.
3 is a view taken in the direction of arrow B in FIG. 3, and FIG. 6 is a sectional view taken along line D-D in FIG.

First, the overall schematic structure and operation of the grooving tool according to this embodiment will be described with reference to FIGS. 1 and 2, and then the detailed structure of each part will be described. In FIG. 1, reference numeral 10 denotes a guide member, and the guide member 10 includes a rail base 11 placed on the upper surface of a workpiece and a guide block 16, and the guide block 16 is provided on the rail base 11. Attached guide rail 12
It is possible to move vertically in FIG. 1 while being guided by. An arm 20 is inserted into the guide block 16 so as to be slidable in the left-right direction in the drawing, and a handle 21 provided on the guide block 16 is operated to move the arm 20 at a predetermined position with respect to the guide block 16. It can be positioned and fixed. A supporting member 40 is rotatably and detachably attached to the tip end of the arm 20 via an attaching / detaching device 30, and the supporting member 40 is attached to the supporting member 40 along a guide pin 42 in a direction perpendicular to the plane of FIG. A V-groove cutting tool 50 is movably attached. Therefore, the V-groove cutting tool 50 can be moved along the rail guide 12 in the vertical direction in FIG. 1, in the horizontal direction by moving the arm in and out, and further along the guide pins 42 in the direction perpendicular to the paper surface. .

In FIG. 2, a V-groove cutting tool 50 includes a drive body 51 having a built-in motor, and a cutting tool 5 driven by the drive body 51 via a belt transmission mechanism 52.
3 and an adjusting plate 54 for adjusting the groove depth. After adjusting the groove depth by the adjusting plate 54, the V-groove cutting tool 50 is moved along the guide rail 12 while being processed. A V-shaped groove having a predetermined depth can be cut on the object. Therefore, when the workpiece has a swell during cutting, the support member 40 rotates about the arm and the guide provided on the V-groove cutting tool 50 along the guide hole 40a formed in the support member 40. While moving up and down together with the pin 42, the V-groove cutting tool 50 can follow the swell of the workpiece, and can accurately cut a V-groove with a predetermined depth on the workpiece.

Next, the detailed structure of each part will be described. [Guide Member 10] In FIGS. 1 and 2, the guide member 1
0 has a rail base 11 having a predetermined length, and a guide rail 12 is fixed to the rail base 11 by a screw 13. The guide rail 12 is composed of two rod-shaped members each having a circular cross section as shown in the figure. On the left side guide rail 12 shown in FIG. 2, a plurality of fixed rollers 14 are arranged apart from each other in the direction perpendicular to the paper surface.
6 (see FIG. 6), the adjusting roller 15 disposed apart from the guide rail on the right side in the direction perpendicular to the plane of the drawing is in contact with the guide rail. The adjusting roller 15 is rotatably mounted on a shaft 17 which is screwed, and the adjusting roller 15 is rotatably mounted on an eccentric shaft 18 mounted on a guide block 16. The eccentric shaft 18 is rotated to adjust the left and right positions of the adjusting roller 15, and the fixed rail 14 and the adjusting roller 15 hold the guide rail 12 firmly from the left and right so that the guide rail 12 is not rattled. By fixing the shaft 18 to the guide block 16, the guide block 16 can be attached to the guide rail 12 without play. Reference numeral 16a denotes a lubrication device that sends lubricating oil to the guide rail 12, and is provided at four corners. The guide mechanism by the guide rails 12 of the guide block 16 is not necessarily limited to the above configuration, and various types such as a guide by a groove or a form in which one rail is sandwiched by rollers from the left and right are adopted. Of course, the number and arrangement of the fixed roller 14 and the adjusting roller 15 can be variously changed.

An arm 20 is slidably inserted in the guide block 16 in the left-right direction in the drawing.
The guide block 16 by rotating the handle 21.
It can be fixed to. This fixing mechanism will be described with reference to FIG. 6. The fixing mechanism includes a handle 21 and one end fixed to the guide block 16 with a screw 22a and the other end rotated by a handle operation as the screw portion 21a formed on the handle 21 rotates. Fixing member 22 that moves up and down in the figure
And a guide block 16 is provided by moving the fixing member 22 upward by operating the handle 21.
On the other hand, the arm 20 can be fixed at any position. The arm 20 has a scale 20a as necessary.
By attaching (see FIG. 1), the protrusion amount of the arm 20 can be accurately determined, and the V groove pitch can be easily set by this scale. In this way, the amount of protrusion of the arm 20 can be adjusted to cut parallel V-grooves on the workpiece.

[Detachment Device 30] Referring to FIG.
A support member 40 is removably attached to one end of 0 by the attachment / detachment device 30. In this embodiment, the attaching / detaching device 30 has a ball 32 in a circumferential groove 23 formed at one end of the arm.
Is attached so as to be pressed by the sleeve 31 via the spring 31a, and is the same as the attachment / detachment mechanism used for a normal pipe joint or the like.
The attachment / detachment mechanism may be any attachment / detachment mechanism as long as it can be attached to the arm 20 so as to be rotatable. It is also possible to adopt a mechanism in which the arm 20 is fixed to the support member 40, and the arm 20 itself is rotatably and detachably attached to the guide block. In this case, it is adopted in this embodiment. The attachment / detachment mechanism is unnecessary.

[Supporting Member 40] Arm 20 in FIG.
A V-groove cutting tool 50 is provided in a guide hole 40a formed in a support member 40 that is rotatably and detachably attached to one end.
Two guide pins 42 fixed to the screw 41 against
Is fitted so that it can slide up and down. This guide hole 40a
A bush 42b is fitted in the guide pin 42 so that the guide pin 42 can slide up and down easily. Therefore, the V groove cutting tool 5
0 can be moved up and down in the figure by this guide pin 42, and can follow up and down corresponding to the unevenness of the workpiece. Note that this guide pin may be attached to the support member side, contrary to the present embodiment, and a hole for fitting the guide pin may be formed on the V groove cutting tool 50 side. Further, it goes without saying that any structure may be used as long as it is a mechanism capable of vertically guiding the V-groove cutting tool with respect to the support member, and the number of guide pins can be appropriately set.

[V-groove cutting tool 50] Referring to FIG. 2, the V-groove cutting tool 50 includes a drive unit main body 51 having a built-in motor.
It is composed of a groove cutting blade 53 driven by the drive unit main body 51 via a belt transmission mechanism 52, and a cutting unit main body 57 having an adjusting plate 54 for adjusting the groove depth. As shown in FIG. 3, the drive unit main body 51 is attached to the cutting unit main body 57 so as to be vertically swingable about a shaft 55 in the arrow direction. The drive unit body 51 is rotatably attached so that the drive unit body 51 can be positioned at a position where an operator can easily work. In addition, in this embodiment, the mounting angle of the drive unit main body can be arbitrarily set with the slot 79 (see FIG. 1) formed on the main body side being loosened by the bolt 79a. It is possible to adopt the one of the form. 79b is an auxiliary screw for fixing the drive unit main body 51.

A shaft 59 for supporting the V-groove cutting blade 53 is attached to the main body 57 via a bearing 58.
A blade support member 60 has a key 61 on one end side of the shaft 59.
And the like so that the shaft 56 and the shaft 56 rotate together and are fixed by the nut 62. Blade support member 60
As shown in FIGS. 3 and 5, there is a blade support member 60 in which a corner 53a of a rectangular cutting blade 53 is used and a plurality of cutting blades 53 are fixed to each other with screws 53b while changing the attachment angle α. By rotating in the direction of the middle arrow, the V-groove can be processed on the workpiece by the cutting blade 53.
By changing the angle α between the cutting blades 53 as described above, the cutting resistance of V-groove processing is reduced. Shaft 5
A pulley 63 is fixed to the other end of the drive unit 9, and the pulley 63 and a pulley 65 attached to the output shaft of the drive unit main body are connected by a belt 66, whereby the rotational force of the drive unit main body 51 is transferred to the shaft 59. Can be transmitted to.
The pulley 65 and the belt 66 are formed with irregularities for preventing slippage. 57a is a pulley 65 and a belt 66
It is a protective cover. The mechanism for transmitting the rotational force from the drive unit main body to the shaft is not limited to the belt, and gear transmission or the like can be adopted. In some cases, the output shaft of the motor can be directly connected to the shaft.

In FIG. 3, an adjusting plate 54 for adjusting the V groove depth is attached to the lower surface of the main body 57. The adjustment plate 54 has an opening 54a through which the cutting blade 53 protrudes, and the adjustment plate 5
A first pin 54b and a second pin 54c are fixed to 4 by appropriate means such as welding. The adjusting plate 54 can be moved up and down with respect to the main body 57 by operating a knob described later while being guided by these pins. Is installed as. That is, the first pin 54b is connected to the body 5
7 is screwed 68 to a sleeve 67 that is rotatable with respect to 7 but is not vertically movable.
A graduation plate 69 is fixed by a screw 70, and a knob 72 is attached to the upper part of the dial 69 by a screw 72a via a stopper 71. Sleeve 6 mounted as described above
7 and rotates the adjustment plate 54 through the first pin 54b.
After adjusting the height of the protruding position between the cutting tool 53 and the cutting tool 53 to the zero position, the screw 70 is loosened and the dial 69 is attached to the cutting section main body 57.
Adjust to the zero position 69a provided on the
When the knob 72 is operated from this state, the sleeve 6
The relative rotation between 7 and the first pin 54b causes the adjustment plate 54 to move up and down via the first pin 54b in accordance with the pitch of the screw. In this way, the protrusion amount of the cutting blade 53 can be easily and finely adjusted only by rotating the knob 72, and the V groove depth can be adjusted. In addition, at this time, the second pin 54c has the guide hole 57 formed in the cutting portion main body 57.
The inside of a is moved up and down together with the adjusting plate 54. A fixing screw 67 for preventing the sleeve 67 from rotating due to vibration during processing of a workpiece on the right side surface (FIG. 1) of the cutting section body 57.
a is shown.

A guide plate 74 for guiding the chips to the chip collecting case 73 is attached to the adjusting plate 54 by an appropriate fixing means such as a screw 75, so that the chips generated during the V-groove cutting can be easily collected. It can be collected in the case 73. The chip collecting case 73 is removably attached to the cutting section main body 57 by an appropriate means, and the chip collecting case 73 has a lid 7 attached thereto.
6 is detachably attached. It should be noted that this chip collecting case 73 can also adopt cases of various forms. In addition, a mark 7 is provided on the front wall surface of the cutting body 57 so that the V-groove cutting tool can be guided along the marking line of the workpiece.
7 is attached. Furthermore, a knob 78 for holding a tool at the time of work is attached to the upper part of the cutting section body.

To machine a V-groove on a workpiece (plate member) using the grooving tool constructed as described above, first, the guide member 10, the arm 20, the support member 40, and the V-groove cutting tool. After assembling 50 as shown in FIG. 1, the rail base 11 of the grooving tool is set on the workpiece. At this time, if necessary, the rail bale 11 is fixed to the work piece by an appropriate means to reliably prevent the grooving processing tool from moving during the processing. On the other hand, the V-groove cutting tool 50 is positioned by operating the handle so that the cutting blade 53 is located at the position where the V-groove is processed and adjusting the protrusion amount of the arm 20. Along with this, the knob 72 is operated to adjust the protrusion amount of the groove cutting blade 53 from the adjustment plate 54. At this time, if the scale plate 69 provided on the knob is placed at a predetermined depth with zero adjustment, the V-groove depth can be easily adjusted by the scale plate according to the amount of rotation of the knob.

After setting the grooving tool on the work piece in this way, the operator holds the knob 78 and the drive unit main body attached to the cutting unit main body, and adjusts the drive main body to an angle that is easier to work, Drive unit main body 51 with built-in motor
When the switch 51a is turned on, the blade support device rotates,
By manually moving the grooving tool along the guide member, the V-groove having a predetermined depth can be machined by the blade. After the processing is completed, if the protrusion amount of the arm is adjusted, a large number of V grooves parallel to the previously processed V groove can be similarly processed. At this time, if the arm is moved along the scale provided on the arm, the position can be easily set and the parallel V-groove processing can be performed. Further, when the workpiece has swelling during V-groove machining, the V-groove cutting tool uses the V-groove along the swelling of the workpiece by the attaching / detaching device portion or the sliding portion between the support member and the main body. Since the cutting tool rotates or moves up and down and follows along the swell of the workpiece, it is possible to always machine the V groove with an accurate depth. As described above, according to the present invention, it is possible to machine a V-groove having an accurate depth by following a workpiece, and the apparatus can be downsized. Can be provided.

In the above embodiment, the case where the V groove is machined has been described as an example, but various cutting or cutting tools such as a circular blade saw or a polishing device can be used instead of a rectangular blade. Furthermore, the guide mechanism of the cutting section body and the like can also adopt various guide forms.
The present invention can be implemented in various other forms without departing from the spirit or the main features. Further, the above-described embodiments are merely examples in all respects, and should not be limitedly interpreted.

[0021]

As described in detail above, according to the present invention,
Small size that can be installed in a relatively small space,
It is also possible to provide an inexpensive grooving tool. Further, according to the present machining tool, even if the workpiece has a large undulation, it is possible to perform highly accurate V groove machining while the machining tool follows the undulation. It has excellent effects such as easy operation.

[Brief description of drawings]

FIG. 1 is a plan view of a grooving processing tool according to the present embodiment.

FIG. 2 is a sectional view taken along line AA in FIG. 1 of the grooving tool.

FIG. 3 is a cross-sectional view taken along the line C-C of the cutting portion body and the state where the driving portion body is rotated.

4 is a sectional view taken along the line EE in FIG.

5 is a view taken in the direction of arrow B in FIG.

FIG. 6 is a cross-sectional view taken along the line DD in FIG.

FIG. 7 is an explanatory view of a conventional stationary groove processing machine.

[Explanation of symbols]

 10 Guide Member 11 Rail Base 12 Guide Rail 14 Fixed Roller 15 Adjustment Roller 16 Guide Block 17 Shaft 18 Eccentric Shaft 20 Arm 30 Attachment / Detachment Device 40 Supporting Member 50 V Groove Cutting Tool 51 Drive Unit Main Body 52 Belt Transmission Mechanism 53 V Groove Cutting Tool 54 Adjustment plate

Claims (4)

[Claims] 1. An arm is provided slidably and fixedly on a guide block that moves while being guided by a guide member, in a direction substantially perpendicular to the guide member.
A supporting member is provided at an end of the arm so as to be rotatable about an arm shaft, and a groove cutting tool is provided on the supporting member so as to be vertically movable. 2. The grooving tool according to claim 1, wherein the grooving tool is provided with an adjusting plate for adjusting a grooving depth. 3. The grooving tool according to claim 1, wherein the groove cutting tool is detachably attached to the arm by an attaching / detaching device. 4. The groove cutting tool is provided with a blade supporting member rotatably provided and a cutting blade provided at symmetrical positions of the member with different mounting angles. The grooving tool according to any one of claims 1 to 3.