JP3847399B2 - Angle cutting device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an angle material cutting device having an L-shaped cross section of 90 degrees, and more particularly to an angle material cutting device capable of making the cut-off length uniform when obliquely cutting the tip portion of the angle material. .
[0002]
[Prior art]
In general, the front end of an angle member having an L-shaped cross section of 90 degrees is cut at 45 degrees or 135 degrees, and the front end is abutted with the flange portion facing inward or outward and joined. It is common practice to construct a frame.
[0003]
Conventionally, as a method of cutting the tip of this type of angle material, a normal cutting device having a stationary rotary cutter or a stationary press cutting device is used, and the angle material is inclined with respect to the cutting line. It is arranged and cut.
[0004]
[Problems to be solved by the invention]
However, in the conventional angle material cutting device, since there is no means for aligning the distal end portion of the angle material inserted and installed for cutting with respect to the cutting position, visual cutting work is performed, Therefore, there is a problem in that the cutting length of the tip portion is not constant, and as a result, the cutting length of the angle material varies and a highly accurate product cannot be obtained.
[0005]
In addition, since it is not easy to set the angle material in an oblique direction with respect to the cutting line, there are problems that workability is poor and stability is lacking.
[0006]
The present invention has been made in consideration of such points, and it is possible to make the cutting length of the angle material uniform by making the cutting length of the angle material tip uniform and to easily obtain a highly accurate product. An object of the present invention is to provide an angle material cutting device that can be used.
[0007]
Another object of the present invention is to provide an angle material cutting device capable of cutting the tip portion of the angle material without causing waste of material with a small force.
[0008]
Another object of the present invention is to cut an angle material that can be cut obliquely at an angle other than 90 degrees as well as the right hand and left hand of an angle material with a single device. To provide the equipment.
[0009]
Another object of the present invention is to provide an angle material cutting apparatus that can cut a thick angle material while supporting a bending moment generated in the cutting blade.
[0010]
Another object of the present invention is to provide an angle material cutting device capable of making the cut-off length uniform by reliably contacting the tip of the angle material regardless of the angle of cutting. It is in.
[0011]
Another object of the present invention is to provide an angle material cutting device that can reduce the weight of the stopper means and suppress an increase in the weight of the entire device.
[0012]
Still another object of the present invention is to provide an angle member cutting device capable of easily manufacturing stopper means.
[0013]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a first fixed blade and a second fixed blade that are attached in a V shape with an opening angle of 90 degrees, and the tip of the first fixed blade and the second fixed blade are lifted and lowered at one side. In an angle material cutting device comprising a movable blade having a shape, the tip portion of the angle material to be cut disposed on the movable blade side of the two fixed blades is brought into contact with each other so that the cutting length of the tip portion is made uniform It is characterized by providing stopper means for the purpose. Then, by bringing the tip of the angle material into contact with the stopper means and cutting the angle material in this state, the cut length of the angle material tip becomes constant, and as a result, the cutting length of the angle material is uniform. Can be realized.
[0014]
The present invention is also characterized in that both the fixed blade, the movable blade and the stopper means are attached to a block type tool cartridge. As a result, they can be exchanged as a single unit, which is easy to exchange and does not require mutual alignment after exchange.
[0015]
The present invention also provides a stopper body having a relief portion at the center and a stopper body having left-hand and right-hand stopper portions on both the left and right sides, and the stopper body in parallel with the elevation surface of the movable blade. It is characterized by comprising a slide guide member that is supported so as to be slidable left and right within the plane. Since the relief portion is provided at the center of the stopper means, the angle member is positioned in a state in which the corner on the rear side of the tip of the angle member is in contact with either the left or right stopper portion. There is no problem that cutting itself becomes impossible.
[0016]
The present invention is also characterized in that the stopper body is formed by raising both end portions of the bar at right angles and bending the raised tip portions at right angles respectively. As a result, a lightweight stopper body can be obtained, and an increase in the weight of the entire apparatus can be suppressed.
[0017]
The present invention is further characterized in that the stopper main body is formed by providing a notch in the upper center of a horizontally long rectangular plate. Thus, the stopper main body can be easily manufactured.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0019]
FIGS. 14 to 17 show a processing apparatus to which the angle material cutting device according to the first embodiment of the present invention is attached. The processing apparatus 1 includes a horizontally-placed surface plate 2 and a fixed platen. A hydraulic cylinder 4 installed at a distance upward from the surface plate 2 via a C-shaped frame 3 which is formed in a C shape by connecting portions extending horizontally to the upper and lower ends of a vertical column on the plate 2; A hydraulic pump 5 and an electric motor 6 connected to the back side of the hydraulic cylinder 4 and an angle material cutting device 7 detachably disposed on the lower end of the C-shaped frame 3. The end face can be cut at an arbitrary angle.
[0020]
The C-type frame 3 is installed on the surface plate 2 with the front and both sides of the apparatus open, and a hydraulic cylinder 4 having a piston rod 9 that moves vertically up and down is installed at the upper end of the C-type frame 3. A hydraulic pump 5 is connected to the back side of the upper end of the hydraulic cylinder 4 with its axis line oriented in the front-rear and horizontal directions of the apparatus, and an electric motor 6 is connected in series to the back side of the hydraulic pump 5. Yes.
[0021]
A motor shaft 10 of the electric motor 6 is inserted on the back side of the casing body 11 of the hydraulic pump 5, and an oil tank 12 in which oil is stored in the casing body 11 and a pump mechanism that pumps oil in the oil tank 12. Each of 13 is incorporated.
[0022]
The pump mechanism 13 includes a cam portion 14 formed at the tip of the motor shaft 10, a piston 15 reciprocally driven by the cam portion 14 via a needle bearing, and an on-off valve 16 disposed in the oil passage. The on-off valve 16 normally closes the oil passage by a spring 17.
[0023]
On the other hand, a cylinder chamber 18 is formed in the hydraulic cylinder 4, and a piston flange 19 is slidably disposed in the cylinder chamber 18. A piston flange 19 is disposed on the lower surface of the piston flange 19. The rod 9 is joined.
[0024]
The hydraulic cylinder 4 and the hydraulic pump 5 are connected via a flow path switching valve 20, and the oil path is controlled to be switched by switching the flow path switching valve 20. As a result, the piston flange 19 and the piston rod 9 are driven in the vertical direction. The angle material cutting device 7 is driven by the vertical movement of the piston rod 9 so that the end surface of the angle material 8 is cut.
[0025]
As shown in FIGS. 5 to 13, the angle material cutting device 7 can move up and down to the tool cartridge 21, the first fixed blade 22 and the second fixed blade 23 fixed to the tool cartridge 21, and the tool cartridge 21. And a movable blade 24 attached thereto.
[0026]
The tool cartridge 21 includes a mounting board 25 and a fixed blade mounting block 26 erected on the mounting board 25. The fixed blade mounting block 26 has a V-shape with an opening angle of 90 degrees. The guide part 27 is formed. On the back side of the guide portion 27, both fixed blades 22 and 23 are attached in a V shape with a fixing bolt 28 with an opening angle of 90 degrees. The movable blade 24 moves up and down on the back side of the fixed blades 22 and 23.
[0027]
That is, as shown in FIG. 3, the movable blade 24 is formed in a plate shape having a substantially V-shaped tip, and a disc-shaped upper end guide 29 is attached to the upper end portion thereof. It is supported by a guide block 30 fixed on the fixed blade mounting block 26 so as to be movable up and down.
[0028]
As shown in FIGS. 10 and 11, the guide block 30 is integrally provided with a guide member 31 that supports the back side of the movable blade 24, that is, the side opposite to the fixed blades 22 and 23. A spring 32 is provided between the member 31 and the upper end guide 29 to press and urge the movable blade 24 upward at all times. And the bending moment which arises in the movable blade 24 at the time of a cutting | disconnection is supported by the guide member 31, and the thick angle material 8 can also be cut | disconnected now.
[0029]
On the other hand, on the front side of the guide part 27, that is, on the side opposite to the fixed blades 22 and 23 of the guide part 27, a flat cutting angle adjusting member 33 is disposed as shown in FIGS. A V-shaped angle member receiving portion 34 having an opening angle of 90 degrees is provided at the upper end portion of the cutting angle adjusting member 33. A slide guide hole 35 having an inverted T-shape is provided at a position below the angle material receiving portion 34 of the cutting angle adjusting member 33, and the cutting angle adjusting member 33 has an attachment bolt 36 penetrating the slide guide hole 35. Thus, the movable blade 24 is mounted on the fixed blade mounting block 26 so that the position of the movable blade 24 can be adjusted vertically and horizontally within a plane parallel to the lifting surface. The cutting angle of the end face of the angle member 8 can be changed by the movement of the cutting angle adjusting member 33.
[0030]
That is, for example, as shown in FIG. 8, by moving the cutting angle adjusting member 33 so that the mounting bolt 36 is positioned at the left end of the slide guide hole 35, the angle right 45 degrees is cut, and as shown in FIG. In addition, the cutting angle adjusting member 33 is moved so that the mounting bolt 36 is positioned at the right end of the slide guide hole 35, whereby the angle 45 ° is cut to the left. Further, as shown in FIG. By moving the cutting angle adjusting member 33 so as to be positioned at the upper end of the hole 35, the angle is cut by 90 degrees. This will be described in detail later.
[0031]
As shown in FIGS. 1 to 7, stopper means 37 is disposed on the back side of the fixed blade mounting block 26, that is, on the both fixed blades 22 and 23 side of the fixed blade mounting block 26. This stopper means 37 is for making the cutting length of the tip portion uniform by bringing the tip portion of the angle member 8 to be cut into contact.
[0032]
That is, the stopper means 37 includes a stopper main body 38 and a pair of left and right slide guide members 39 that support the stopper main body 38 so as to be slidable left and right. The stopper main body 38 is formed by raising both ends of the round bar at right angles and bending the raised tips at right angles. As a result, a space without a member, that is, a relief portion 38a is formed in the central portion of the stopper main body 38, and a left-handed stopper portion 38b and a right-handed stopper portion 38c are formed on the left and right ends, respectively.
[0033]
Further, as shown in FIGS. 1 and 2, each slide guide member 39 is formed of a rectangular bar-shaped block material having a guide cutout 39a that slidably supports the stopper main body 38 inside the upper and lower ends. Each of these slide guide members 39 is fixed to the fixed blade mounting block 26 via a fixing bolt 40. The stopper body 38 is supported by each slide guide member 39 and is slidable left and right.
[0034]
For example, as shown in FIG. 3, positioning concave portions 41 and 42 are respectively provided on one side surface of the mounting substrate 25, and the mounting substrate 25 includes two pieces that are vertically attached to both side ends of the C-shaped frame 3. Guided from both sides by the guide plate 43 and positioned and mounted on the upper surface of the lower end of the C-shaped frame 3. That is, as shown in FIGS. 14 and 16, a steel ball 44 and a butterfly bolt 45 are respectively attached to one guide plate 43, and the steel ball 44 has the tool cartridge 21 attached to the C-type frame 3. At this time, it is fitted and locked in the recess 41 of the mounting substrate 25, and the butterfly bolt 45 is engaged with the recess 42 in this state. As a result, the tool cartridge 21 is positioned and fixed to the C-shaped frame 3.
[0035]
Next, the operation of the present embodiment will be described.
When cutting the angle member 8, as shown in FIGS. 14 to 17, the cutting angle adjusting member 33 is moved up and down and left and right using the slide guide hole 35 as a guide, and the angle right 45 ° cutting state and the angle left 45 ° cutting are performed. State or angle 90 degree cut state. Then, the angle member 8 having a 90-degree L-shaped cross section is set across the crossing portion of the angle member receiving portion 34 and the two fixed blades 22 and 23 so as to have an upward V shape. In FIG. 15, the angle member 8 indicated by a solid line indicates a left 45 ° cut state, the angle member 8 indicated by a chain line indicates a right 45 ° cut state, and the angle member 8 shown in FIG. 17 indicates a 90 ° cut state. Yes.
[0036]
By the way, when the cutting angle adjusting member 33 is cut, for example, at an angle of 45 degrees to the left, as shown in FIG. 14, the angle member 8 is in a set state inclined to the left by 45 degrees with respect to the cutting blade. Therefore, if the angle member 8 is cut in this state, the angle member 8 can be cut at 45 degrees on the left hand. The same applies to the case where the cutting angle adjusting member 33 is cut to the right 45 degrees or 90 degrees.
[0037]
By the above operation, the angle of inclination of the angle member 8 with respect to the cutting blade, that is, the cutting angle of the tip of the angle member 8 is uniquely determined, but the cutting position in the longitudinal direction of the angle member 8 is not determined. Therefore, it must be determined by other methods. In the present embodiment, this position determination is performed using the stopper means 37. .
[0038]
That is, when the angle member 8 is cut at 45 degrees on the right hand, the stopper body 38 is slid leftward in the drawing as shown in FIG. When the angle member 8 is set in this state, the tip end portion of the angle member 8 comes into contact with the right-handed stopper portion 38c and no longer protrudes toward the front side in the drawing. For this reason, the cutting position in the longitudinal direction of the angle member 8 is uniquely determined.
[0039]
On the other hand, when the angle member 8 is cut at 45 degrees on the left hand, the stopper main body 38 is slid rightward in the drawing as shown in FIG. When the angle member 8 is set in this state, the tip end portion of the angle member 8 comes into contact with the left-handed stopper portion 38b and no longer protrudes toward the front side in the drawing. For this reason, the cutting position in the longitudinal direction of the angle member 8 is uniquely determined.
[0040]
By the way, since the stopper main body 38 of the stopper means 37 is arranged in parallel with the cutting blade, the tip of the angle member 8 comes into contact with the stopper main body 38 from an oblique direction as shown in FIG. . Here, when the escape portion 38a is not provided in the center portion of the stopper main body 38, the front end portion of the angle member 8 is in contact with the stopper main body 38 at the front end of the right end in the drawing, and the left end in the drawing is shown. The rear angle is stopped at a position separated from the stopper main body 38. For this reason, in some cases, the corner at the rear of the left end in the figure is shifted downward in the figure from the cutting line 46, and in this case, regular oblique cutting itself is impossible. This is the same for both right-handed cutting and left-handed cutting.
[0041]
However, the stopper main body 38 in the present embodiment is provided with a relief portion 38a at the center thereof, and as shown in FIG. 18, the angle member 8 has its front corner at the right end in the figure away from the stopper main body 38. In the state of projecting forward, the rear corner of the left end in the figure contacts the stopper main body 38, and the angle member 8 is positioned in this state. For this reason, both corners of the tip of the angle member 8 are always positioned closer to the stopper body 38 than the cutting line 46, and the tip of the angle member 8 can be cut obliquely in a regular shape.
[0042]
Next, the operation when cutting the angle member 8 will be specifically described.
First, when the electric motor 6 of the processing apparatus 1 is started, the cam portion 14 is rotated by the rotation of the motor shaft 10 and the piston 15 is driven to reciprocate. Thereby, the oil in the oil tank 12 is sucked and compressed to generate pressure oil, and this pressure oil is pumped into the cylinder chamber 18 via the flow path switching valve 20.
[0043]
The pressure oil pumped into the cylinder chamber 18 acts on the flange surface of the piston flange 19 and the piston rod 9 descends. Then, the movable blade 24 of the angle material cutting device 7 is squeezed against the urging force of the spring 32, and the end surface of the angle material 8 is cut at an inclination of 45 degrees to the left and right, for example, as shown in FIGS. The
[0044]
When the piston rod 9 of the hydraulic cylinder 4 is lowered to the bottom dead center, the flow path switching valve 20 is operated to switch the flow path, and the piston flange 19 is raised again in the cylinder chamber 18. Then, the piston rod 9 also rises with this.
[0045]
When the piston rod 9 is raised, the movable blade 24 of the angle material cutting device 7 is moved up by the urging force of the spring 32 and returns to the state shown in FIG. Thereafter, the above operation is repeated every time the electric motor 6 is started.
[0046]
Thus, since the cutting angle of the angle member 8 can be changed only by moving the cutting angle adjusting member 33 up and down, left and right, even when cutting at 45 degrees, both the right hand and the left hand are 1 It can be cut by the angle material cutting device 7 of the stand, and the angle material 8 can be cut at 90 degrees.
[0047]
Further, the fixed blade mounting block 26 is provided with stopper means 37, and the angle member 8 to be cut is cut in a state in which the tip portion thereof is in contact with the stopper means 37. The length can be made uniform, and as a result, the cut length of the angle member 8 can be made uniform. For this reason, the dimensional accuracy at the time of comprising the frame 47 (refer FIG. 21) etc. can be improved.
[0048]
Further, since the stopper body 38 is provided with a relief portion 38a at the center portion thereof, when the angle member 8 is obliquely cut, the end portion can always be cut in a regular shape.
[0049]
Then, by joining the end surfaces of these angle members 8 whose end portions are cut together to join each other, as shown in FIG. 21, a frame body 47 is formed with the flange portion facing inward.
[0050]
FIG. 22 shows a second embodiment of the present invention, in which a stopper means 57 is used in place of the stopper means 37 in the first embodiment.
[0051]
That is, the stopper means 57 is provided with a stopper main body 58 formed of a horizontally long rectangular plate material. The stopper main body 58 is provided with a relief portion 58a formed by cutting out the central upper portion thereof and on both sides thereof. A left-handed stopper portion 58a and a right-handed stopper portion 58c are provided.
[0052]
The plate surfaces of the stopper portions 58b and 58c are respectively provided with horizontally long slide guide holes 59, and the stopper main body 58 is fixed to the fixed blade mounting block 26 (see FIG. 5) by means of mounting bolts 60 inserted through the slide guide holes 59. 1)) and is slidable in the lateral direction.
[0053]
Other points are the same as those in the first embodiment, and the operation is also the same.
[0054]
Thus, by using the stopper means 57, the stopper main body 58 can be easily manufactured and the slide guide mechanism can be simplified.
[0055]
【The invention's effect】
As described above, the present invention is provided with the stopper means that is disposed on the movable blade side of the two fixed blades and abuts the tip portion of the angle material to be cut to make the cutting length of the tip portion uniform. Since the angle material is cut in this state by bringing the tip of the angle material into contact with the stopper means and the angle material is cut in this state, the cutting angle of the angle material becomes constant. The length can be made uniform.
[0056]
In the present invention, since the cutting angle adjusting member and the angle material receiving portion are provided, the angle material is set by aligning the L-shaped corner portion over the angle material receiving portion and the crossing portion of the two fixed blades. In this state, the angle of the angle member with respect to the cutting blade is changed by moving the cutting angle adjusting member up and down and left and right. That is, the end face of the angle member can be cut obliquely at an angle other than 90 degrees as well as by moving the cutting angle adjusting member up and down and left and right. In addition, the left and right sides can be handled by moving the cutting angle adjusting member in the left-right direction.
[0057]
In the present invention, since both the fixed blade, the movable blade, the stopper means, and the cutting angle adjusting member are attached to the block-type tool cartridge, they can be replaced as a whole, and the replacement is easy. Subsequent alignment with each other is also unnecessary.
[0058]
In the present invention, since the tool cartridge is provided with a guide member for supporting the anti-fixed blade side of the movable blade, the bending moment generated in the movable blade is supported by the guide member, and a thick angle material is also cut. can do.
[0059]
In the present invention, since the stopper means is constituted by the stopper main body and the slide guide member, the end face of the angle member is formed in a regular shape regardless of the angle of the angle member. Can be cut diagonally.
[0060]
In the present invention, the stopper body is formed by raising both end portions of the bar at right angles and bending the respective leading end portions at right angles to the inside. As a result, an increase in the weight of the entire apparatus can be suppressed.
[0061]
Further, according to the present invention, since the stopper body is formed by providing a notch at the center upper portion of the horizontally long rectangular plate material, the stopper body can be easily manufactured.
[Brief description of the drawings]
FIG. 1 is a perspective view of a right-handed cutting state showing an angle material cutting device according to a first embodiment of the present invention.
FIG. 2 is a perspective view showing a left-handed cutting state similar to FIG.
3 is an exploded perspective view of the main part of FIG.
4 is a plan view showing a portion on the fixed blade side of FIG. 3;
FIG. 5 is a front view similar to FIG.
6 is a sectional view taken along line VI-VI in FIG.
7 is a rear view similar to FIG. 4. FIG.
FIG. 8 is a perspective view of the apparatus of FIG. 1 as viewed from the back side.
9 is a front view of FIG. 8. FIG.
10 is a cross-sectional view taken along line X-X in FIG. 9;
11 is a rear view of FIG. 8. FIG.
FIG. 12 is a view corresponding to FIG. 8 showing a state in which the cutting angle adjusting member is cut at 45 degrees to the left of the angle member.
FIG. 13 is a view corresponding to FIG. 8 showing a case where the cutting angle adjusting member is cut by 90 degrees of the angle member.
14 is a partial side cross-sectional view showing a processing apparatus to which the angle material cutting device of FIG. 1 is attached.
15 is a front view of FIG.
FIG. 16 is a view corresponding to FIG. 14 and showing a processing device to which the angle material cutting device of FIG. 13 is attached.
FIG. 17 is a front view of FIG. 16;
FIG. 18 is an explanatory view showing the effect of the escape portion provided in the stopper body.
FIG. 19 is an explanatory view showing a left-handed angle member cut by the processing apparatus of FIG. 14;
20 is an explanatory view showing a right-handed angle member similar to FIG.
FIG. 21 is an explanatory diagram showing a frame configured using the angle members of FIGS. 19 and 20;
FIG. 22 is a configuration diagram of stopper means showing a second embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Processing apparatus 2 Surface plate 3 C type | mold frame 4 Hydraulic cylinder 5 Hydraulic pump 6 Electric motor 7 Angle material cutting device 8 Angle material 21 Tool cartridge 22 First fixed blade 23 Second fixed blade 24 Movable blade 25 Mounting board 26 Fixed blade attachment Block 27 Guide portion 29 Upper end guide 30 Guide block 31 Guide member 32 Spring 33 Cutting angle adjusting member 34 Angle material receiving portion 35 Slide guide hole 36, 60 Stopper body 38a, 58a Escape portion 38b, 58b Left-handed stopper portion 38c, 58c Right-hand stopper 39 Slide guide member 39a Guide cutout 59 Slide guide hole

Claims (3)

  A first fixed blade and a second fixed blade that are attached in a V shape with an opening angle of 90 degrees; a movable blade that moves up and down on one side of the two fixed blades and has a tip that is substantially V-shaped; In the angle material cutting device, comprising: stopper means disposed on the movable blade side of the fixed blade and contacting the tip portion of the angle material to be cut to make the cutting length of the tip portion uniform. The means includes a stopper main body having a relief portion at the center and left and right hand stoppers on both the left and right sides; and the stopper main body on the left and right in a plane parallel to the lifting surface of the movable blade. An angle material cutting device comprising: a slide guide member that is slidably supported.   2. The angle member cutting device according to claim 1, wherein the stopper main body is formed by raising both end portions of the bar at right angles and bending the raised tip portions at right angles to the inside. .   2. The angle material cutting device according to claim 1, wherein the stopper body is formed by providing a notch at an upper center portion of a horizontally long rectangular plate material.

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