JP2000140942A - Plate working machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plate working machine which is high in working accuracy, low in manufacturing cost and carrying cost, and excellent in durability. SOLUTION: A frame 2 is provided with a base part 21, a support part 22 located away from the base part 21, and a connection part 23 to connect one end of the base part 21 to one end of the support part 22, and an approximately U-shaped side surface capable of inserting a plate in a space between the base part 21 and the support part 22. In a bending means 3, one end is fixed to the other end of the base part 21, the other end is fixed to the other end of the support part 22, and the plate is pressed in the thickness direction. A first guide is provided on the base part 21. A second guide is provided on the support part 22 parallel to the first guide. One end of a reinforcing member is slidably supported by the first guide, and the other end is slidably supported by the second guide, and the reinforcing member is provided approximately parallel to the pressing direction of the working means. Since the stress exerted in the frame 2 is dispersed in the reinforcing member, the deformation of the frame 2 is small.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet material processing machine, and more particularly to a sheet material bending machine that presses a sheet material in a thickness direction to bend the sheet material or a sheet material cutting machine that presses a sheet material in a thickness direction to cut the sheet material. Related to processing machines.

[0002]

2. Description of the Related Art As a sheet material processing machine, a sheet material bending machine for pressing and bending a sheet material in a thickness direction and a sheet material cutting machine for cutting a sheet material by pressing it in a thickness direction are known. FIG. 9 shows a conventional general plate bending machine. The frames 2 are plate-like and vertically fixed to the base 1, and three frames 2 are provided at substantially equal intervals. The frame 2 includes a base 21 fixed to the base,
Supporting portion 2 provided substantially parallel to a position away from base portion 21
2 and a connecting part 23 for connecting one end of the base part 21 and one end of the supporting part 22 to each other.

A base plate 31 is installed on the other end of the base 21 of the three frames 2. The base plate 31 includes a lower blade 32 that can reciprocate up and down by a spring (not shown),
The lower blade 32 has a V-shaped cross section at the tip. An elevating plate 33 that reciprocates up and down by driving means (not shown) is provided at the other end of the support portion 22, and an upper blade 34 having a V-shaped cross section is provided at the tip of the elevating plate 33. When the lifting plate 33 descends, the tip of the upper blade 34 is inserted into the recess of the lower blade 32. The moving direction of the lift plate 33 and the lower blade 3
A back ruler 5 that reciprocates perpendicularly to the installation direction of 2 is installed. The plate material is inserted into the gap between the upper blade 34 and the lower blade 32, and the tip of the plate material 10 is brought into contact with the back ruler 5 to determine the processing position of the plate material 10. The lower blade 32 has a protrusion 3 on the outside.
5 A bent portion of a plate material bent at an acute angle can be inserted into a gap between the protrusion 35 and the base plate 31.

Hereinafter, an operation of bending the plate material 10 by the above-described bending machine will be described. Lifting plate 33
The plate 10 is inserted into the gap between the upper blade 34 and the lower blade 32 with the lifter lifted, and the tip of the plate 10 is brought into contact with the back ruler 5 to determine the bending position. By driving the lifting plate 33, the upper blade 34
Is lowered to press the plate material 10 and bend it in accordance with the V-shaped recess of the lower blade 32. The bending angle is adjusted by adjusting the lower end reaching position of the lower blade 32.

When performing hemming folding on the plate material 10,
After bending the plate material near the end so that the plate material is bent by about 30 °, the lifting plate 33 is driven to raise the upper blade 34 and take out the plate material. Next, the bent portion of the plate material is inserted into the gap between the projection 35 and the base plate 31, the elevating plate 33 is lowered, and
The lower blade 32 is pressed down to press the plate material with the protrusion 35 and the base plate 31, and the plate material is bent so as to be bent by about 180 ° to perform hemming folding.

When the plate material 10 is pressed by the upper blade 34, the frame 2 has a base portion 21 as shown by an arrow in the figure.
And a stress acting to push and spread the support portion 22 acts. If the stress causes a displacement between the upper blade 34 and the lower blade 32, the processing accuracy is reduced. Therefore, the thickness of the frame 2 is increased to ensure the rigidity of the frame 2. In particular, the acute angle folding process or the hemming folding process of about 30 ° bends the plate material with a pressing force two to three times as large as the bending process of about 90 ° by air bending. For this reason, a high rigidity is particularly required for the frame to enable the acute angle folding process and the hemming folding process.

[0007]

However, conventionally, the thickness of the frame is increased to secure the rigidity of the frame, so that the material cost of the frame member is increased. In addition, there is a problem that as the thickness of the frame increases, the weight increases and the transportation cost increases. The present invention has been made in view of such a problem, and an object of the present invention is to provide a plate processing machine having high rigidity of a frame and high processing accuracy. Another object of the present invention is to provide a highly durable plate processing machine. Yet another object of the invention is to provide
An object of the present invention is to provide a plate processing machine with low manufacturing cost. Still another object of the present invention is to provide a plate processing machine with low transportation cost.

[0008]

The plate processing machine according to the present invention comprises a frame, a processing means, a first guide, a second guide, and a reinforcing member. The frame is
A base portion, a support portion located away from the base portion, and a connecting portion for connecting one end of the base portion and the support portion to each other, and inserting a plate material into a space between the base portion and the support portion It has a substantially U-shaped side shape that can be used. Processing means
One end is fixed to the other end of the base portion, and the other end is fixed to the other end of the support portion, and the plate is pressed and machined in the thickness direction. The first guide is provided on the support. The second guide is the first on the base
Provided parallel to the guide. One end of the reinforcing member is slidably supported by the first guide, the other end is slidably supported by the second guide, and the reinforcing member is installed substantially parallel to the pressing direction of the processing means. High rigidity and high processing accuracy. In addition, by reducing the thickness of the frame, it is possible to suppress manufacturing costs and transportation costs while securing rigidity. Furthermore, it has excellent durability.

According to the plate material processing machine of the second aspect of the present invention, since the back ruler which is in contact with the tip of the plate material and is connected to the reinforcing member is provided, the reinforcing member reciprocates together with the back ruler and moves away from the end surface of the plate material. Pressing can be performed by the processing means at the set position. In addition, when performing the pressing process, the reinforcing member is located closer to the processing position than the connecting portion, so that the rigidity of the frame can be effectively improved.

According to the plate processing machine of the third aspect of the present invention, the first guide has the first slide shaft fixed at both ends to the supporting portion by the support member, and the second guide has the both ends supported. The reinforcing member includes a second sliding shaft fixed to the base portion by a member, and the reinforcing member includes sliding contact portions that are slidably fitted to the first sliding shaft and the second sliding shaft at both ends. For this reason, the reinforcing member can move while keeping parallel to the pressing direction of the processing means.

According to the plate processing machine of the fourth aspect of the present invention, the reinforcing member has a first load supporting portion forming a first load supporting surface substantially perpendicular to a pressing direction of the processing means, and a first load. A second load bearing portion forming a second load bearing surface facing substantially parallel to the bearing surface, wherein the support portion forms a first load surface parallel to the first guide with the first load bearing surface slidably contacting the first load bearing surface; The base portion has a second load rail in which the second load bearing surface slides and forms a second load surface parallel to the second guide. For this reason, the stress acting on the frame can be dispersed to the reinforcing member via the first load portion and the second load portion.

[0012]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a first embodiment of the present invention; (First Embodiment) FIGS. 1 to 5 show a bending plate processing machine according to a first embodiment of the present invention. As shown in FIG. 1, the bending plate processing machine vertically fixes plate-shaped frames 2 at equal intervals at three positions on a base 1, and forms a bending means 3 with the three frames 2. A frame reinforcing mechanism 4 is provided on a side surface of each frame 2. A back ruler 5 that moves integrally with the frame reinforcing mechanism 4 is installed on the three frames 2.

The frame 2 comprises a base 21, a support 22 and a connecting portion 23, and has a U-shaped side surface. The base 21 is fixed to the base 1, and a crankshaft 24 for reciprocating a later-described elevating plate 33 is fixed to the support 22. Both ends of the bending means 3 are fixed to the base portion 21 and the connecting portion 23, respectively. The bending means 3 includes a base plate 31 fixed to the base 21 and a base plate 3
1 comprises a lower blade 32 provided on the support portion 22 and capable of reciprocating by a spring (not shown); an elevating plate 33 provided on the support portion 22 and reciprocating by a driving device (not shown); Upper blade 34 and lower blade 3
The two tips each have a V-shaped cross section. When the lifting plate 33 descends, the tip of the upper blade 34 is inserted into the recess of the lower blade 32. The lower blade 32 has a protrusion 35.

As shown in FIG. 2, the frame reinforcing mechanism 4 includes a frame reinforcing plate 41 as a reinforcing member, a first slide shaft 42 on which both ends of the frame reinforcing plate 41 are slidably supported, and a second slide shaft. And a first load support rail 44 and a second load support rail 45 that are in sliding contact with the frame reinforcing plate 41. The first slide shaft 42 has a length from the vicinity of the bending means 3 of the support portion 22 to the connecting portion 23, and is fixed to the support portion 22 by the support member 46. The second slide shaft 43 has the same length as the first slide shaft 42 and is attached to the base 21 by the support member 46.
Fixed parallel to 2.

As shown in FIG. 3, the frame reinforcing plate 41 has sliding contact portions 47 at both ends, and the sliding contact portions 47 cause the first sliding shaft 42 and the second sliding shaft 43.
And is movable from the vicinity of the bending means 3 to the connecting portion 23. In addition, the frame reinforcing plate 41 is
A first load supporting portion 48 and a second load supporting portion 49 are provided on the inside of the inside. The first load support 48 and the second load support 49 are fixed to the frame reinforcing plate 41 by bolts. Further, the frame reinforcing plate 41 is connected to the back ruler 5 on the base 21 side, and moves together with the back ruler 5.

The back ruler 5 is provided on three frames 2 and provided with sliders (not shown) at three locations. The back ruler 5 can reciprocate in parallel with the moving direction of the frame reinforcing plate 41 by fitting the slider to a bolt (not shown) fixed to the frame 2 and rotating the bolt by a motor (not shown). The back ruler 5 has an upper blade 3
4 and the frame reinforcing plate 41 while keeping parallel with the lower blade 32.
And move together. The L-shaped abutment member 51 abuts on the plate material to perform processing positioning of the plate material.

First load rail 44 and second load rail 4
5, a first load bearing surface 441 and a second load bearing surface 451 are respectively formed, and the first load bearing surface 481 of the first load bearing portion 48 and the second load bearing surface 491 of the second load bearing portion 49 are respectively formed.
Sliding contact. A gap between the load support surface 481 and the load surface 441,
And the gap between the load supporting surface 491 and the load surface 451 is extremely narrow,
The clearance is smaller than the radial clearance in which the sliding shaft is inserted into the sliding contact portion 47. The first load rail 44 and the second load rail 45 are fixed to the support 22 and the base 21 by bolts, respectively.

The operation of hemming by the bending plate processing machine according to this embodiment will be described below. As shown in FIG. 6, the plate material 10 is inserted into the gap between the upper blade 34 and the lower blade 32 while the lifting plate 33 is lifted, and
Is made to contact the contact member 51, and the motor is driven to move the back ruler 5 to determine the bending position. At this time, the frame reinforcing plate 41 connected to the back ruler 5 is
It moves together with the back ruler 5 and is located near the front end of the plate material 10. Next, as shown in FIG. 7, the elevating plate 33 is driven to lower the upper blade 34 to press the plate material 10, and the plate material 10 is bent to about 30 ° in accordance with the V-shaped recess of the lower blade 32.
The bending angle of the plate 10 is determined by the position where the upper blade 34 reaches the lower side. The lifting plate 33 is driven to raise the upper blade 34 to take out the plate material 10, and the bending portion of the plate material 10 is
And the base plate 2. Next, as shown in FIG.
The elevating plate 33 is lowered, the lower blade 32 is pushed down by the upper blade 34, and the plate material 10 is pressed by the projection 35 and the base plate 31,
The plate material 10 is bent to about a degree and hemmed. At this time, the frame reinforcing plate 41 is located near the processing means 3.

When the plate 10 is pressed, the frame 2
Stress acts in a direction to expand the space between the base 21 and the support 22. The frame 2 is slightly deformed by the stress, the space between the base 21 and the support 22 is slightly separated, and the first load support 4 fixed to the frame reinforcing plate 41 is formed.
8. Load supporting surfaces 481, 491 of the second load supporting portion 49
And load surfaces 441 of the first load rail 44 and the second load rail fixed to the support portion 22 and the base portion 21, respectively.
451 makes surface contact. When the load support surfaces 481, 491 and the load surfaces 441, 451 are in surface contact, the frame reinforcing plate 4
1, a tensile stress is generated, and the stress generated by pressing the plate 10 is distributed to the frame 2 and the frame reinforcing plate 41. Therefore, the deformation of the frame 2 is suppressed.
At this time, since the gap between the load support surface 481 and the load surface 441 and the gap between the load support surface 491 and the load surface 451 are extremely narrow, no load is applied to the first slide shaft 42 and the second slide shaft 43. .

On the other hand, except for the time of hemming folding,
When the bending process is performed at a position away from the end surface of the sheet material, the frame reinforcing plate 41 moves along with the back ruler 5, so that the plate material 10 is inserted deeply into the connecting portion 23 and bent at a position away from the end surface of the plate material 10. be able to. At this time, since the frame reinforcing plate 41 is closer to the processing position than the connecting portion 23, the deformation of the frame 2 is effectively suppressed.

According to the bending plate processing machine of this embodiment, a tensile stress is applied to the frame reinforcing plate 41 when the plate 10 is pressed, and the stress acting on the frame 2 is reduced. Therefore, the deformation of the frame is small and the processing accuracy is high. Further, the thickness of the frame 2 can be reduced as compared with a bending plate processing machine which does not include the frame reinforcing mechanism 4 and secures the same degree of rigidity. Low. Further, since the stress acting on the frame 2 is small, the durability is excellent.

(Second Embodiment) A cutting plate processing machine according to a second embodiment of the present invention having a frame reinforcement mechanism substantially the same as the frame reinforcement mechanism of the first embodiment will be described below. The cutting plate processing machine according to the present embodiment has a bed for stably holding the plate, a driving unit positioned opposite the bed, and a U-shaped side shape connecting the bed and the driving unit. And a frame. When pressing and cutting the plate material by the cutting means comprising the lower cutting blade provided at one end of the bed and the upper cutting blade which moves up and down by the driving means, the reaction force is dispersed to the frame reinforcing plate, and the deformation of the frame is suppressed. Is done. For this reason, according to the cutting plate processing machine of the present embodiment, the deformation of the frame is small, so that the processing accuracy is high.

[Brief description of the drawings]

FIG. 1 is a schematic side view of a plate processing machine according to a first embodiment of the present invention.

FIG. 2 is a plan view showing a frame reinforcing mechanism according to the first embodiment of the present invention.

FIG. 3 is a sectional view taken along line III-III of FIG. 1;

FIG. 4 is a partially enlarged view of FIG. 3;

FIG. 5 is an enlarged perspective view showing a part of the frame reinforcing mechanism according to the first embodiment of the present invention.

FIG. 6 is an operation explanatory view of the plate processing machine according to the first embodiment of the present invention.

FIG. 7 is an operation explanatory view of the sheet material processing machine according to the first embodiment of the present invention.

FIG. 8 is an operation explanatory view of the sheet material processing machine according to the first embodiment of the present invention.

FIG. 9 is a schematic side view showing a conventional plate processing machine.

[Explanation of symbols]

 2 Frame 21 Base part 22 Support part 23 Connecting part 3 Bending means 41 Frame reinforcing plate (reinforcing member) 42 First slide shaft 43 Second slide shaft 44 First load rail 441 First load surface 45 Second load rail 451 second load surface 46 support member 47 sliding contact portion 48 first load support portion 481 first load support surface 49 second load support portion 491 second load support surface 5 back ruler

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3C039 AA25 AA32 AA42 4E063 AA01 BA07 CA13 FA03 GA04 JA07 4E088 AA04 AB03 AB07 EA10

Claims (6)

[Claims] A base portion, a support portion located away from the base portion, and a connecting portion for connecting one end of the base portion and one end of the support portion to each other, wherein the base portion and the support portion are connected to each other. A substantially U-shaped frame into which a plate material can be inserted into a space therebetween, one end fixed to the other end of the base portion and the other end fixed to the other end of the support portion, Processing means for performing processing by pressing in a direction; a first guide provided on the support portion; and a second guide provided on the base portion in parallel with the first guide.
A guide, one end of which is slidably supported by the first guide, the other end of which is slidably supported by the second guide, and a reinforcing member which is installed substantially parallel to a pressing direction of the processing means; A plate processing machine, comprising: 2. The plate material processing machine according to claim 1, further comprising a back ruler which is in contact with a tip of said plate material and is connected to said reinforcing member. 3. The first guide has a first sliding shaft, both ends of which are fixed to the support portion by a support member, and the second guide has both ends fixed to the base portion by a support member. 2. The vehicle according to claim 1, further comprising a second sliding shaft, wherein the reinforcing member includes a sliding contact portion that is slidably fitted to the first sliding shaft and the second sliding shaft at both ends. 3. 2. The plate processing machine according to 2. 4. The first load bearing portion forming a first load bearing surface substantially perpendicular to a pressing direction of the processing means, and the reinforcing member faces substantially parallel to the first load bearing surface. A second load supporting portion forming a second load supporting surface, wherein the supporting portion includes a first load rail, the first load supporting surface slidingly contacting the first load rail to form a first load surface parallel to the first guide; The said base part has a 2nd load rail which the said 2nd load bearing surface slides and forms a 2nd load surface parallel to the said 2nd guide, The said base part is characterized by the above-mentioned. Plate processing machine. 5. The apparatus according to claim 1, wherein the processing means is a bending processing means for pressing and bending the plate material.
The plate material processing machine according to any one of claims 4 to 4. 6. The processing means according to claim 1, wherein said processing means is a cutting processing means for pressing and cutting said plate material.
The plate processing machine according to any one of claims 4 to 10.