JP2543330B2 - Sheet metal processing machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet metal working machine for bending a sheet metal.

[0002]

2. Description of the Related Art As a sheet metal working machine (sheet metal bending machine) for bending a sheet metal, there have been conventionally used FIGS.
No. 49803) is known. This known sheet metal working machine is provided with a pair of upper and lower clamping rolls 1.
A movable unit 102 having 11, 112, a rotary drive device 104 for rotating both nipping rolls 111, 112 in mutually opposite directions, and an arc rotation operation mechanism 105 for vertically rotating the movable unit 102 are provided. There is. The rotation driving device 104 operates the handle 141 to rotate both the sandwiching rolls 111 and 112 in mutually opposite directions, and the sheet metal Z to be sandwiched between the sandwiching rolls is processed.
Can be moved in the length direction (horizontal direction orthogonal to the left-right direction in FIG. 11). The arc rotation operation mechanism 105 operates the handle 151 to center the tip portion of the sheet metal sandwiching portion of the upper sandwiching roll 111 at the center P.
As a whole, the movable unit 102 as a whole can be vertically rotated. Further, the upper holding roll 111 and the lower holding roll 112 each have an appropriate length,
Moreover, since both the nipping rolls 111 and 112 are installed in parallel to each other, the distance W between the nipping rolls 111 and 112 is such that the flat sheet metal Z can be inserted in the lateral direction. It is extremely small (for example, about 10 to 30 mm).

In this known sheet metal working machine (sheet metal bending machine), the intermediate portion in the width direction (horizontal direction) of the flat sheet metal sheet Z to be processed is sandwiched between the sandwiching rolls 111 and 112 (to be processed). The non-clamping side Zb of the processed sheet metal Z is supported on the support base 106), and the handle 15 of the arc rotation operation mechanism 105.
1 is operated to incline the movable unit 102 by a predetermined angle (for example, an angle of about 15 to 20 ° as shown in FIG. 12), and one end side Za of the sandwiching portion Zc in the sheet metal to be processed by the sandwiching rolls 111 and 112 in the length direction. Is bent only within a predetermined angle range, and then the handle 141 of the rotary drive device 104 is bent.
Is operated to rotate both clamping rolls 111 and 112 in opposite directions while keeping them inclined, thereby sequentially bending the sheet metal Z clamped between the clamping rolls by a predetermined angle range. The sheet metal Z is moved in the front-rear direction, whereby the sheet metal Z to be processed is set at a predetermined angle (for example, 15
It can be bent only by 20 °). By repeating the bending operation as described above several times, the sheet metal Z to be processed is shown by a chain line in FIG. 12 (reference numeral Za ′).
It can be bent up to an angle of 90 °.

By the way, in this type of sheet metal bending, not only is a flat sheet metal bent at one location, but also a single sheet metal is bent a plurality of times, for example, like a trough having a U-shaped cross section. There are cases.

However, in the known sheet metal working machine shown in FIGS. 11 and 12, there is no problem in simply bending a flat sheet metal. However, both nipping rolls 111 and 112 in the sheet metal Z to be processed are used. When there is a bent portion which is bent upward or downward in advance in the portion Za sandwiched by the both holding rollers from the holding portion Zc, the bent portion is provided with a gap W between the upper and lower holding rollers 111, 112. Therefore, there is a problem in that the sheet metal working machine known in the art cannot carry out sheet metal working in a complicated shape.

By the way, in view of the problems of the known sheet metal working machine shown in FIGS. 11 and 12, the present applicant, for example, bends a plurality of portions of one sheet metal like a gutter shape. , A sheet metal processing machine capable of performing sheet metal processing of a complicated shape has already been proposed (for example, Japanese Patent Application No. 5-46769).
issue). As shown in FIG. 13, the sheet metal processing machine of the above-mentioned application has an upper and lower horizontal frame 22 of a mounting base 221 formed in a U shape in a side view.
A pair of upper and lower holding members 211, 2 are provided at the front end portions of the 2, 223.
12 is attached to the rear side of each of the sandwiching members 211 and 212,
A considerably large space 225 is formed in the front and back and the top and bottom. This space 225 has a front-rear length L of 400 to 500.
mm, and the vertical lengths T ₁ and T ₂ from the sheet metal holding height position are about 150 mm, respectively. If the size of the space 225 is increased, the size of the entire machine increases. The upper and lower sandwiching members 211 and 212 each have a disc shape. Then, each holding member 21
The sheets 1 and 212 are rotated in opposite directions by a power-type rotary drive device 204 by a motor 241 and sandwiched between the sandwiching members (sandwiching unit 210).
Can be moved back and forth in the depth direction of FIG. In addition, the arc rotation operation mechanism 205 includes the telescopic cylinder 251.
14 is used, and when the telescopic cylinder 251 is contracted from the extended state shown in FIG. 13 to the state shown in FIG. 14, the movable unit 202 is moved to the base 201 via the link device 252 from the state shown in FIG. 90 ° as shown in
Only the arc is turned upward. The base 20
No. 1 is installed directly on the ground and its posture cannot be easily changed.

In the sheet metal working machine of the present application, a flat sheet metal can be sequentially bent at a predetermined angle (for example, about 15 °) over the entire length in the depth direction, and for example, it can be bent in a gutter shape. When bending a plurality of positions in the width direction of the sheet metal Z to be processed as in the case, as shown in FIGS. 13 and 14, a bent piece Zd bent in a hook shape in advance is provided in the space 225 of the mounting base 221. The sheet metal Z to be processed can be sequentially bent while advancing and retracting in the depth direction in a state of being housed inside.

By the way, in the sheet metal working machine of the prior application shown in FIGS. 13 and 14, a space portion 225 having a considerable size is formed in the mounting base 221 and the bent piece Zd which has been bent is formed in the space portion. Since it can be bent at another place while being accommodated in the 225, after bending the bent piece Zd at the first time, the first bent sheet metal Z is left as it is (inside out). Alternatively, as shown in FIG. 13, the next predetermined portion can be bent by shifting the space portion 225 by a predetermined length as shown in FIG.
However, for example, in FIG. 13, when the length of the bent piece Zd is longer than the length of the symbol T ₁ , or when the length from the position to be bent next to the bent piece Zd is longer than the length of the symbol L. Then, the bent piece Zd portion of the sheet metal Z cannot be accommodated in the space portion 225. Therefore, the sheet metal Z with the bent piece Zd is rotated by an angle of 180 ° in the horizontal plane so that the bent piece Zd portion is outside. (Anti-space part 225 side)
It is necessary to perform the following bending work while being located at.

Further, in the sheet metal working machine of the already-filed application shown in FIGS. 13 and 14, the sheet metal to be processed is, for example, in the form of a long gutter and is attached to the upper end of each of the compatibility raising pieces Zd and Zd. It is also possible to process into a complicated shape having laterally bent pieces Ze, Ze in the facing direction. As this type of sheet metal Z to be processed, a long flat plate having a width of, for example, about 1 m and a length of more than 10 m may be used. And
The sheet metal Z to be processed is shown in FIG.
In the case of bending into a shape as shown in FIG. 16, it is performed through each step of (A) to (H) of FIG. The work order is as follows.

First, in FIG. 16, as shown in step (A), one end portion in the width direction of a flat plate-shaped sheet metal Z ₀ is clamped by a clamping unit 210 (both upper and lower clamping members 211, 21) of a sheet metal working machine.
2) Insert between.

Next, by operating this sheet metal working machine,
As shown in step (B), the lateral bending piece Ze _{1 is} bent at one end in the width direction of the sheet metal Z ₁ .

Next, as shown in the step (B), the sheet metal Z ₁ having the lateral bending piece Ze ₁ formed on one end side thereof is manually turned over and swung by an angle of 180 ° in the horizontal direction, as shown in the step (C). Change the posture to the state. In order to change the posture of the sheet metal from the posture of the step (B) to the posture of the step (C), it is advisable to rotate the sheet metal by an angle of 180 ° in the vertical plane. It is impossible to manually rotate the robot in the vertical plane. Then, in this state, as shown in step (C), the rising piece forming position of the sheet metal Z ₁ is inserted between the holding units 210.

Next, by operating this sheet metal working machine,
As shown in the step (D), a piece Z is set up on one end side of the sheet metal Z _2.
Fold d ₁ .

Next, as shown in step (D), the sheet metal Z ₂ having the rising piece Zd ₁ formed on one end side is turned over in the width direction, and the posture is changed to the state shown in step (E). And
In this state, as shown in step (E), the end portion on the side opposite to the side on which the rising piece Zd _{1 is} formed is inserted between the holding units 210.

Next, by operating this sheet metal working machine,
As shown in step (F), the lateral bending piece Ze _{2 is} bent at the end of the sheet metal Z ₃ opposite to the bending side.

Next, as shown in the step (F), the sheet metal Z ₃ on which the laterally bent piece Ze ₂ is formed is turned over and rotated horizontally by an angle of 180 ° to change the posture to the state shown in the step (G). . Then, in that state, the rising piece forming position is inserted between the holding units 210 as shown in the step (G).

Next, by operating this sheet metal working machine,
As shown in the step (H), the rising piece Z is attached to the other end of the sheet metal Z _4.
Fold d ₂ .

As described above, in the sheet metal working machine shown in FIG. 13, the long flat plate-shaped sheet metal Z can be processed into the shape shown in FIG.

[0019]

However, in the sheet metal working machine of the above-mentioned application (FIGS. 13 and 14), the base 20 is used.
1 is fixedly installed on the ground, and bending work can be performed only from one side in the left-right direction (right side in the illustrated example), so that the sheet metal Z to be processed is long (for example, more than 10 m). In the case of bending into a gutter shape, the sheet metal Z to be processed is, for example, the steps (B) to (C) or the steps (F) to (G) in FIG. When the posture is changed to the state shown in (4), the sheet metal must be turned over and turned horizontally by an angle of 180 ° as described in the above work order or. Therefore,
In the sheet metal processing machine shown in FIGS. 13 and 14, the processed sheet metal Z
Although it can be bent at multiple points in the width direction (for example, in a gutter shape), it is necessary to horizontally swivel the long metal plate to change its posture during the machining work. In addition to being troublesome, there is a problem that a large idle space is required near the installation part of the sheet metal processing machine.

In order to improve the above-mentioned problems, the present invention makes it possible to turn the sheet metal working machine body in a horizontal plane so that bending work can be performed from both left and right sides. It is an object of the present invention to provide a sheet metal working machine capable of performing bending without bending the sheet metal to be processed even when bending.

[0021]

Means for Solving the Problems The present invention has the following structural features as means for solving the above problems. That is, in the sheet metal working machine of the present invention, a sheet metal working machine body capable of bending a sheet metal to be processed is placed on a grounding stand via a rotating device, and the sheet metal working machine body is placed in a horizontal plane with respect to the grounding stand. It is constructed so that it can be rotated within an angle range of 180 °.

The main body of the sheet metal processing machine includes a base, a mounting base mounted on the base so as to be vertically arcuately rotatable, and a front side end of the mounting base mounted on the front end of the mounting base. A clamping unit that can be clamped from the sheet metal, a sheet metal feed mechanism that sequentially moves the sheet metal sandwiched by the sandwiching unit in the lateral direction, and an arc rotation that rotates the clamping unit in the circumferential direction with respect to the sheet metal feed direction. The operation mechanism and the holding portion of the work sheet metal by the holding unit at the time of bending operation of the work sheet metal are configured to have a support base that supports an outer side portion in the width direction. In addition, this sheet metal processing machine main body, on the base,
It is configured to directly or indirectly support the mounting base, the sheet metal feed mechanism, the arc rotation operation mechanism, and the support base,
By horizontally rotating the base portion, the whole sheet metal working machine body can be horizontally rotated.

The mounting base is for mounting the holding unit, and this mounting base connects the upper horizontal frame, the lower horizontal frame, and the upper horizontal frame and the lower horizontal frame at their rear side. It may be formed in a U shape in a side view having a vertical frame. It is preferable that a space is formed in a portion surrounded by the upper horizontal frame, the lower horizontal frame, and the vertical frame for accommodating one end of the sheet metal to be processed held by the holding unit.

The holding unit has a pair of upper and lower holding members each having a circular outer peripheral surface. The respective holding members are attached to each other at the front ends of the upper horizontal frame and the lower horizontal frame of the mounting base in a mutually adjacent state. Further, a plurality of sets of the sandwiching unit composed of the pair of upper and lower sandwiching members may be installed on the left and right.

The sheet metal feeding mechanism has a rotation drive device for rotating the upper and lower clamping members in mutually opposite directions. The sheet metal feed mechanism can move the sheet metal to be processed sandwiched between the two holding members in the lateral direction by rotating the upper and lower holding members in opposite directions by the rotation driving device. . The rotary drive device may be of a manual type using a handle, but is preferably an electric type using a motor.

The arc rotation operation mechanism is configured to rotate the sandwiching unit in the circumferential direction with respect to the sheet metal feeding direction of the sandwiching unit, centering on the sheet metal sandwiching portion by the upper and lower sandwiching members. The arc rotation operation mechanism may be of a manual type using a handle, but it is preferable to use power of a motor or a telescopic cylinder.

The support base may be any one that can support the opposite side of the sheet metal to be bent from below when the sheet metal is bent by the holding unit.

[0028]

In the sheet metal working machine of the present invention, while the sheet metal to be processed is clamped between both clamping members, the clamping unit is tilted by the arc rotation operation mechanism and the sheet metal is laterally moved by the sheet metal feeding mechanism. By this, sheet metal bending can be performed. In the case where the sheet metal to be processed is largely bent (for example, bent to an angle of 90 °), the sheet metal may be bent for a predetermined small angle (for example, 15 °) several times.

Further, since the main body of the sheet metal processing machine can be rotated within a range of an angle of 180 ° in a horizontal plane with respect to the grounding table, the main body of the sheet metal processing machine can be horizontally rotated by an angle of 180 °. Thus, the sheet metal to be processed can be bent from both left and right sides thereof. Therefore, when bending a plurality of positions in the width direction of the sheet metal to be processed into a gutter shape, for example, even if it is necessary to turn the sheet metal inside out in the width direction, The work of turning inside or in the vertical plane is unnecessary.

Further, if the mounting base is formed in a U-shape in side view and a space is formed therein, a portion inside the sheet metal clamping portion of the sheet metal to be processed has a U-shaped space at the time of bending the sheet metal. Even if there is a bent part that is bent in the up-down direction in advance inside the sheet metal sandwiching part of the sheet metal to be processed (mounting table side part) in the sheet metal to be processed, the bent part is the space described above. Since it is stored inside the department, it can be bent without any problems.

[0031]

In the sheet metal working machine of the present invention, since the main body of the sheet metal working machine can be horizontally rotated by the rotating device within the range of the angle of 180 ° on the grounding table, a plurality of places in the width direction of the sheet metal to be processed are folded. Even when bending, it is not necessary to rotate the sheet metal in the horizontal plane or the vertical plane by horizontally rotating the sheet metal working machine body by an angle of 180 ° as necessary. Therefore, complicated bending can be performed by only a small movement (simple work) of turning over the sheet metal to be reversed in the width direction, and a large idle space is not required near the installation portion of the sheet metal processing machine. Thus, the space can be effectively used for other purposes.

If the mounting base is formed in a U-shape in side view and a space is formed therein to accommodate one end side of the sheet metal to be processed, the mounting base for the sheet metal to be bent is to be formed. Even if there is a bent portion in the portion to be accommodated on the side, the bending work can be performed with the folded portion accommodated in the space.
There is an effect that bending processing can be performed at a plurality of positions in the width direction of one sheet metal sheet.

[0033]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. 1 to 10. In the sheet metal working machine of this embodiment, bending work and cutting work can be selectively performed on a work sheet metal Z. It is configured.

This sheet metal working machine is equipped with a base 1, a mounting base 21 which is mounted on the base 1 so as to be vertically arcuately rotatable, and a bending work which is mounted on the front end of the mounting base 21. Alternatively, a sandwiching unit 10 having a pair of upper and lower sandwiching members 11 and 12 for sandwiching a sheet metal Z to be cut from both front and back sides thereof, and a rotation drive for rotating the pair of upper and lower sandwiching members 11 and 12 in mutually opposite directions. The workpiece 4 is provided with the device 4 and by rotating the clamping members 11 and 12 in opposite directions by the rotation driving device 4, the sheet metal Z clamped between the clamping members 11 and 12 is sequentially moved in the lateral direction. With the sheet metal feeding mechanism 3 configured to be swallowed and the sheet metal clamping portion Zc formed by the pair of upper and lower clamping members 11 and 12 as the center P, the clamping unit 10 is moved in the sheet metal feeding direction (arrow C- in FIG. 2).
The arc rotation operation mechanism 5 that makes an arc rotation in the circumferential direction (vertical direction) with respect to the D direction) and the sandwiching portion Zc by the sandwiching unit 10 on the sheet metal Z to be processed during bending operation of the sheet metal Z to be processed. A sheet metalworking machine main body Y is configured with a support base 6 that supports the width direction outer portion Zb and a cutting device 8 for cutting the sheet metalwork Z to be processed, and the sheet metalworking machine body Y is placed on the ground. It is configured to be rotatably mounted on a grounded base 13 which is grounded via a rotating device 60 in a horizontal plane.

This sheet metal working machine has a lateral width direction (arrow C-D).
The total length in the direction is 600 to 700 mm, the front-back direction (arrow A-
B-direction) total length is 800-1000mm, height is 700-
It has a relatively small size of about 900 mm and can be loaded on a truck or the like and brought to a construction site.

The base 1 is constructed by assembling in a rectangular box shape with a flat plate or a frame material. Also, the side plate 1 of the base 1
The control panel 17 is mounted on the outer surface of the control panel 6.

The grounding base 13 is composed of a frame material, a flat plate and the like and is assembled in a quadrangle slightly larger than the outer shape of the base 1. Support legs 14, 14, ... Are attached to the four corners of the grounding base 13. Further, the support legs 14 may be casters, and in that case, the sheet metal working machine can be manually pushed and moved.

The holding unit 10 and the sheet metal feed mechanism 3 are mounted on a mounting base 21, and the mounting base 21 is supported above the base 1 via an arc rotation operation mechanism 5 so as to be capable of arc rotation. . The sandwiching unit 10, the sheet metal feed mechanism 3 and the mounting base 21 constitute a movable unit 2 which is rotatable in an arc with respect to the base 1.

The mounts 21 are hollow upper horizontal frames 2 respectively.
2, the lower horizontal frame 23, and the vertical frame 24 are formed in a U shape in a side view. The upper horizontal frame 22, the lower horizontal frame 23, and the vertical frame 24
The space surrounded by is formed with a relatively large volume of space 25 before, after, and below. For example, the space 25
It has a front-rear length of 400 mm and a vertical height of about 300 mm.

An upper base plate 31 for mounting the upper holding members 11, 11 is provided at the tip of the upper horizontal frame 22 of the mounting base 21. On the other hand, a lower base plate 32 for mounting the lower holding members 12, 12 is provided at the tip of the lower horizontal frame 23 of the mounting base 21. Upper base plate 31
As shown in FIG. 3, the lower base plate 32 and the lower base plate 32 have a substantially rectangular shape and are installed substantially vertically symmetrical to each other. Further, the lower surface of the upper base plate 31 and the upper surface of the lower base plate 32 are linear, and the lower surface of the upper base plate 31 and the upper surface of the lower base plate 32 are slightly smaller than the thickness of the sheet metal Z to be processed. It has a large small interval. The upper and lower base plates 31 and 32 used in this embodiment have a height of 210 mm and a lateral width of 37 mm.
The thickness is 0 mm and the thickness is about 40 mm.

The upper base plate 31 is attached to the upper horizontal frame 22 so as to be slidable up and down. Further, the upper base plate 31 is adjusted by the vertical movement adjusting device 7 to an appropriate height position (that is, the lower surface of the upper base plate). And a lower base plate upper surface, a sheet metal to be processed can be fixed at a position where a space can be inserted. The vertical movement adjusting device 7 is shown in FIGS.
The adjustment screw 71 is provided as shown in FIG.
1, the height of the upper base plate 31 can be adjusted,
The upper base plate 31 can be fixed to the upper horizontal frame 22 at a predetermined height.

As shown in FIG. 3, the holding unit 10 has two left and right (arrow C-D direction) upper holding members 11, 11 and two left and right lower holding members 12, 12. The upper and lower clamping members 11 and 12 each have a diameter of 125.
A circular disk with a thickness of 9 mm and a thickness of 9 mm is used.

As shown in FIGS. 4, 6 and 7, the outer peripheral surfaces of the upper and lower clamping members 11 and 12 are tapered surfaces. That is, the outer peripheral surface of the upper holding member 11 is
The front side (arrow A side) has a large diameter and the rear side (arrow B side) has a tapered surface with a small diameter.
Is a tapered surface having a small diameter on the front side and a large diameter on the rear side opposite to the upper holding member 11 (each outer peripheral surface is inclined at an angle of about 15 ° with respect to the horizontal plane). Note that the outer peripheral surface of the upper clamping member 11 and the outer peripheral surface of the lower clamping member 12 are parallel to each other in the vicinity thereof.

Further, the edge portions on the front surface side (arrow A side) of the upper holding members 11, 11 are sharply angled to make a cutting edge 1 for shearing.
1a (see FIG. 6 or FIG. 7). In addition, this cutting edge 1
1a constitutes a part of the cutting device 8 as described later.

The upper holding members 11 and 11 and the lower holding members 12 and 12 are axially attached to the upper base plate 31 and the lower base plate 32, respectively, in a state in which they are vertically aligned. The lower surface of each of the upper holding members 11, 11 is the upper base plate 3.
1 is mounted so as to protrude slightly from the lower surface. Further, the lower holding members 12 and 12 are also attached with their upper surfaces slightly protruding from the upper surface of the lower base plate 32. The sheet metal Z to be processed is clamped between the lower surfaces of the upper clamping members 11 and 11 and the upper surfaces of the lower clamping members 12 and 12, and the lower surface of the upper clamping members 11 and 11 and the upper surfaces of the lower clamping members 12 and 12. Is adjusted by the vertical movement adjusting device 7 according to the thickness of the sheet metal Z to be processed.

Rotational drive unit 4 which constitutes the sheet metal feed mechanism 3.
In this embodiment, an electric motor is used. By operating a forward / reverse rotatable motor 41 in the forward or reverse rotation direction, the upper holding members 11 and 11 and the lower holding member 1 are rotated.
2, 2 and 12 can be rotated in mutually opposite directions. That is, the power from the single motor 41 causes the gear 4
The lower shaft 45A laterally installed in the lower horizontal frame 23 via 2, 43 and the upper shaft 45B laterally installed in the upper horizontal frame 22 via the chain 44 are driven so as to rotate simultaneously and mutually in reverse. Further, as shown in FIGS. 3 and 4, gears 46A (46B) are attached to the end portions of the lower shaft 45A and the upper shaft 45B where the holding members are installed, and the respective gears 46A (46B) are different from each other. Gear 47A, 4
7A (47B, 47B) and gears 48A, 48A (48
B, 48B), the upper holding members 11 and 11 and the lower holding members 12 and 12 are driven so as to rotate in opposite directions at a constant speed. The upper and lower clamping members 1
Each shaft that drives 1, 12 (lower shaft 45A, upper shaft 45
B) and each gear (46A-48A, 46B-48B)
Are vertically symmetrical with respect to each other. Therefore, the sheet metal feeding mechanism 3 includes the upper and lower clamping members 11, 11, 1.
By operating the rotation driving device 4 while sandwiching the sheet metal Z between 2 and 12, the sheet metal Z can be moved in the arrow C direction or the arrow D direction.

The arc rotation operation mechanism 5 has a telescopic cylinder (air cylinder) 51 and a link device 52 for transmitting the power from the telescopic cylinder 51 to the movable unit 2. The link device 52 includes first to fourth link pieces 53,
54, 55, and 56 (each of which has a pair of left and right sides), and the link pieces 53 to 56 are assembled as shown in FIGS. And this arc rotation operation mechanism 5
When the telescopic cylinder 51 is in the maximum extension state, as shown in FIG. 1 or FIG. 4 (shown by solid lines), the upper and lower clamping members 11, 12 are
Keeps the vertical posture, and the telescopic cylinder 51
Is reduced, as shown in FIG.
The entire movable unit 2 is caused to rotate arcuately upward in the circumferential direction with respect to the sheet metal feeding direction with the front edge of the lower surface as the center P.

A guide device 34 for guiding the edge of the sheet metal Z to be bent on the bending side (edge on the arrow B side in FIG. 1) is provided on the mount 21. This guide device 34
As shown in FIGS. 1 and 2, a pedestal 36 is provided between the mounting pedestals 35, 35 having a pair on the left and right (arrow C-D direction) in the arrow C-D direction. Rollers 37, 37 for pressing are provided on the upper portions near both ends of each.
The receiving base 36 is provided with a handle 3 for each mounting base 35.
The vertical movement can be adjusted by 8, 38, and the mounting bases 35, 35 together with the receiving bases 36, 35 by separate handles 39, 39.
Can be adjusted forward and backward in the front-back direction (arrow AB direction). As shown in FIGS. 4 and 5, the guide device 34 holds the sheet metal Z to be machined in a state where the bent side end of the sheet metal Z is sandwiched between the upper surface of the pedestal 36 and the roller 37.
By feeding and moving in the -D direction, the work sheet metal Z
The fold line for is accurately formed in a straight line.
When the guide device 34 is unnecessary, the mounting base 35
Is retracted to the rear end position of the space portion 25 of the mounting base 21 as shown in FIG.

Further, as shown in FIGS. 5 and 6, a guide base 74 is detachably attached to the upper end of the lower base plate 32 on the rear surface side. The guide table 74 is formed in a rectangular bar shape having a considerable length in the left and right directions (in the directions of arrows CD). Further, the upper surface of the guide base 74 is installed so as to be positioned at the same angle as the upper end inclined surface on the outer peripheral surface of the lower holding member 12 and on the extension line thereof. This guide table 74
When the sheet metal Z to be processed is clamped by both upper and lower clamping members 11 and 12 and bent, the lower surface of the sheet metal Z to be processed is received on the lower surface of the bending side Za by a wide area, so that This is to prevent a streak-like contact mark from being left due to contact of the rear side edge of the lower holding member 12. The guide base 74 has a plurality of vertical grooves 75 formed at predetermined intervals (for example, at intervals of 10 mm) in the width direction. As shown in FIG. 6, a positioning piece 76 is detachably fitted into each of the vertical grooves 75. By selecting the fitting position of the positioning piece 76, the desired sheet metal Z is obtained. It can be bent in the width of. The positioning piece 76 is
When it is unnecessary, it is removed from the vertical groove 75.

The support base 6 has substantially the same shape and size as the lower base plate 32, and a flat surface portion of a small width (40 to 50 mm) is formed on the upper surface thereof as shown in FIG. The upper surface of the support base 6 is positioned and used at substantially the same height as the upper surface of the lower base plate 32 during the sheet metal bending work as shown in FIG. The support base 6 can be finely adjusted vertically by a blade advance / retreat operating mechanism 9 for moving the disk blade 81 of the cutting device 8 up and down by a very small height as described later.

The cutting device 8 includes the above-mentioned upper holding members 11, 1
1 and a disk cutter 8 having the same diameter as the upper holding members 11, 11
1, 81 (there are two on the left and right sides as shown in FIG. 3), and a rotation driving device 82 for rotating the respective disk blades 81, 81. Each of the disc blades 81, 81 is
They are axially supported on the side surfaces of the support base 6 at equal intervals between the left and right directions (directions of arrows CD) between 1 and 11.
Further, as shown in FIG. 3, the rotation driving device 82 is configured to rotate the disc blades 81, 81 in the same direction with each other through the gears sequentially by the power from the motor 83 attached to the side surface of the support base 6. Has become. Moreover, each disk blade 81, 81
Are mounted so that their upper surfaces are substantially flush with the upper surface of the support base 6 or slightly above (eg, about 0.5 mm) above. The support base 6
A notch is formed at a position corresponding to the disc blades 81, 81 on the upper surface of the disc so that the disc blades 81, 81 face upward.

Then, the supporting table 6 with the disc blade 81
Means that each of the disc blades 81, 81 has the lower holding member 12, 1.
In the state of approaching / opposing to 2, it is vertically slidably mounted on vertical guides 94, 94 of the blade advance / retreat operating mechanism 9 described below. Each of the disk blades 81, 81 is rotated by the rotation driving device 82 at the same speed as that of the upper holding members 11, 11 in the opposite direction.

By rotating the handle 91, the blade advancing / retreating operation mechanism 9 can move the entire support base 6 with the disc blade up and down by a small height along the pair of left and right vertical guides 94, 94. There is. Each vertical guide 94, 94
2 and 3, as shown in FIG. 2 and FIG.
It is fixed to each side plate 16, 16. A pair of left and right screw bolts 93 is screwed to the support base 6. These screw bolts 93, 93 are rotated via respective gear devices 92, 92 driven by a handle 91. The blade advancing / retreating operation mechanism 9 rotates the handle 91 clockwise or counterclockwise to rotate the screw bolts 93, 93 via the gear devices 92, 92, thereby causing the support base 6 to move the vertical guides 94. , 94, and can be moved up or down.

The upper surfaces of the vertical guides 94, 94 and the upper surface of the support base 6 are located at substantially the same height. Photoelectric tubes 18 and 19 are embedded upward on the upper surfaces of the vertical guides 94 and 94, respectively. These photocells 18 and 19 are
The presence or absence of the sheet metal Z to be processed is detected, and the control panel 17 causes the motor 41 of the rotary drive device 4 and the telescopic cylinder 5 of the arc rotation operation mechanism 5 to detect the presence or absence of the sheet metal Z.
1 and 1 are controlled automatically.

As shown in FIG. 1, the base 1 has a support base 6
Further, the pedestal 30 can be provided at the outer position.
The pedestal 30 may be movable in the front-rear direction and the height of the pedestal 30 may be vertically adjusted. Further, the receiving table 30 can be made detachable from the base 1.

In this embodiment, as shown in FIGS. 1 to 3, the rotating device 60 which supports the sheet metal working machine body Y horizontally rotatably has a downwardly projecting annular protruding wall 61 attached to the base 1 side.
And a total of four receiving rollers 62 mounted on the ground base 13 side,
62 ... The annular protruding wall 61 is fixed to the lower portion of the base 1 so that the center thereof is located near the center of gravity of the sheet metal working machine body Y. Each of the receiving rollers 62, 62 on the side of the grounding base 13 has an angle of 90 ° at the lower end of the annular protruding wall 61.
It is arranged so that it can be supported at intervals. In this rotating device 60, the annular protruding wall 61 has the receiving rollers 6
.. can be horizontally rotated on the ground table 2, so that the sheet metal working machine body Y can be horizontally rotated on the grounding stand 13 by human power. In other embodiments, a bearing device can be used as the rotating device 60.

A lock mechanism for prohibiting the rotation of the sheet metal working machine body Y is provided between the base 1 and the grounding base 13. The lock mechanism of this embodiment includes a pin receiver 6 on the base 1 side.
4, 6 and pin 6 on the pin receivers 65, 65 on the side of the grounding base 13
The sheet metal working machine body Y can be locked by inserting 6, 66. Also, this locking mechanism
By removing the pins 66, 66, the sheet metal working machine body Y can be horizontally rotated. At the position where the sheet metal working machine body Y is horizontally rotated by an angle of 180 °, another pin receiver 64, 64 on the base 1 side is provided.
Corresponds to the pin receivers 65, 65 on the grounding base 13 side. Then, a pin 66 is attached to both the pin receivers 64 and 65.
The sheet metalworking machine main body Y at an angle of 180
° It can be re-locked in the displaced position.

Further, on the grounding table 13 side, an automatic pin 67 is provided for positioning the sheet metal working machine body Y at a predetermined position when the sheet metal working machine body Y is rotated on the grounding table 13. ing. The automatic pin 67 is biased inward by a spring, and when the sheet metal working machine body Y is rotated to a predetermined position with respect to the grounding base 13, the automatic pin 67 is moved to the base 1.
It is designed to automatically fit into the pin hole on the side.

The sheet metal working machine of the illustrated embodiment is used as follows. Also, in this embodiment, two photocells 18,
In response to the signal from 19, the control panel 17 causes the motor 41 of the rotary drive device 4 and the telescopic cylinder 5 of the arc rotation operation mechanism 5 to operate.
1 and 1 are sequentially operated as described below.

When the sheet metal Z to be processed is bent, the vertical movement adjusting device 7 is used according to the thickness of the sheet metal Z to be processed.
The height of the upper base plate 31 is adjusted by the
The distance between the lower surfaces of the lower support members 1 and 11 and the upper surfaces of the lower holding members 12 and 12 is adjusted. I do. Further, the guide device 34 is set at a position and a height where the receiving base 36 matches the folding width of the sheet metal Z to be processed. When the guide device 34 is used, the positioning piece 76 shown in FIG.

Then, as shown in FIG. 1, the movable unit 2
With the lower end of the sheet metal Z machined along the pedestal 36, the tip side of the sheet metal working machine body Y from the arrow C side to the front side upper and lower clamping members 11 from the arrow C side. , Push between 12 Then, the photoelectric tube 18 on the front side detects the sheet metal, and based on the signal, rotates the motor 41 of the rotary driving device 4 forward (rotates the sheet metal Z in the direction of moving the arrow D side), thereby holding the holding unit 10 (upper and lower holding members). The sheet metal Z to be processed, which is sandwiched between 11 and 12), is fed to the arrow D side by the feeding action of the holding unit 10. Then, since the outer peripheral surfaces of the upper and lower clamping members 11 and 12 are slightly inclined (for example, about 15 °), the movable unit 2 is used for the first time.
The sheet metal Z to be processed can be bent at a predetermined angle (for example, 15 °) as shown in FIG. At this time, the non-clamping side portion Zb of the sheet metal Z to be processed
(See FIG. 4) is supported by the upper surface of the support base 6, and the upper surface of the lower base plate 32 has an appropriate width (about 40 mm) in the direction of arrow AB, which facilitates the sheet metal clamping portion Zc. Can be folded into. Then, the sheet metal Z to be processed is bent and sent to the arrow D side, and when the rear end portion of the sheet metal Z to be processed passes through the photoelectric tube 18 on the front side, the photoelectric tube 18
The motor 41 is stopped by the signal from. At this time, the end on the arrow C side of the sheet metal Z is still held between the left and right holding units 10, 10.

Next, in this state, the telescopic cylinder 51 of the arc rotation operation mechanism 5 is contracted by a predetermined length (first step) to raise the movable unit 2 by a predetermined angle (for example, 15 °).
At this time, since the arc rotation center P of the movable unit 2 is located at the lower surface tip portion 11a of the upper holding member 11 in the sheet metal holding portion Zc, the movable unit 2 can be bent smoothly with a relatively small bending force and is sharp. You can make corners. Subsequently, the motor 41 rotates in the reverse direction to feed the sheet metal Z to the arrow C side while bending the sheet metal Z further deeply. Then, the motor 41 is stopped when the end of the sheet metal Z on the arrow D side passes through the photoelectric tube 19 on the back side, and then the telescopic cylinder 51.
Is further reduced by a predetermined length to raise the movable unit 2 by a predetermined angle (for example, 15 °). Such an operation is repeated several times, and the sheet metal Z to be processed is bent to a desired angle through the state shown by the chain line in FIG. 4 or the state shown by the solid line in FIG. The sheet metal Z to be processed can be bent up to an angle slightly exceeding 90 ° as shown by a chain line in FIG.

When the sheet metal Z to be processed is to be cut, the handle 91 of the blade advancing / retreating mechanism 9 is operated so that the upper surface of the disk blade 81 and the lower surface of the upper holding member 11 are aligned as shown in FIG. If the tip of the position to be cut in the sheet metal Z to be processed is inserted between the upper and lower clamping members 11 and 12 in the same manner as in the above-mentioned bending work, by moving it up to a height or a height slightly higher than that, The motors 41 and 83 of the rotary drive device 4 and the cutting device 8 are operated, respectively. Then, as the sheet metal Z to be processed is moved to the arrow D side by the feed action of the upper and lower holding members 11, 12 and the disk cutter 81, the upper holding member 11 and the disk cutter near the holding portion of the sheet metal to be processed. Due to the shearing action with 81, it is sequentially cut linearly.

As described above, in the sheet metal working machine of this embodiment, one machine has both the bending function and the cutting function of the sheet metal, and the switching between the bending work and the cutting work is performed by the blade advancing / retracting operation. Since the mechanism 9 can be operated only by moving the disc blade 81 back and forth, the usability is good and the holding unit 1
There is an advantage that the upper holding member 11 can be used for both bending and cutting sheet metal.

When the sheet metal Z to be processed is bent at a plurality of positions in the width direction (for example, when it is bent in a gutter shape), after bending one side of the sheet metal Z to be processed, as shown in FIG. Then, the sheet metal processing machine main body Y is horizontally swung by an angle of 180 ° with respect to the grounding base 13, and the sheet metal Z having one side that has been bent may be bent at the other side in the width direction in the same manner as described above. . In this case, even if the work sheet metal Z has a long length of, for example, more than 10 m, the bending work can be performed without changing the work sheet metal Z in a horizontal plane, a vertical plane, or the like. You can do it. Therefore, even when the sheet metal Z is bent into a complicated shape (for example, a gutter shape), the sheet metal Z can be easily handled, and the attitude of the sheet metal Z can be changed near the sheet metal processing machine installation. No idle space is required.

Further, in this sheet metal working machine, as shown in FIG. 9, the mounting base 35 of the guide device 34 is attached to the rear end (arrow B).
If it is displaced to the side), the space 25 in the U-shaped mount 21 can be largely opened, and it is complicated by inserting the bent piece of the sheet metal Z to be processed into the space 25. It can be bent into various shapes.

Further, when the sheet metal processing machine is used to bend the sheet metal Z to be processed into, for example, a trough shape and lateral bending pieces Ze formed at both ends as shown in FIG. 1
It can be performed as shown in steps (A) to (H) of No. 0. In this case, the mounting base 35 of the guide device 34 is displaced to the rear side as shown in FIG.

First, in FIG. 10, as shown in step (A), one end of the flat plate-shaped sheet metal Z _{0 in} the width direction is inserted between the sandwiching units 10 (upper and lower sandwiching members 11 and 12) of the sheet metal working machine.

Next, by operating this sheet metal working machine,
As shown in the step (B), the lateral bending piece Ze ₁ is bent at one end of the sheet metal Z _{1 in} the width direction.

Next, as shown in step (C), the sheet metal working machine body Y is horizontally swung by an angle of 180 ° with respect to the grounding base 13, and the other end of the sheet metal Z _{1 to} be processed is clamped by the holding unit 1.
Insert between 0.

Next, by operating this sheet metal working machine,
As shown in the step (D), the lateral bending piece Ze ₂ is bent at the other end of the sheet metal Z _{1 in} the width direction.

Next, as shown in step (E), 'after turned over in the width direction, sheet metal Z _2' sheet metal Z ₂ inserts a startup piece forming position of between clamping unit 10. The sheet metal to be processed has a relatively small width (for example, about 1 m) even if it is long, and the work of turning the sheet metal to be processed in the width direction can be easily performed.

Next, by operating this sheet metal working machine,
As shown in the process (F), a piece Z is set up on one end side of the sheet metal Z _3.
Fold d ₂ .

Next, as shown in step (G), the sheet metal working machine body Y is horizontally swung by an angle of 180 ° with respect to the grounding base 13, and one end side of the sheet metal Z _{3 to} be processed (lateral bending piece Ze.
Insert the starting piece forming position ( ₁ side) between the holding units 10.

Next, by operating this sheet metal working machine,
As shown in step (H), a piece Z is set up on one end of the sheet metal Z _4.
Fold d ₁ .

As described above, in this sheet metal working machine, the long flat plate-shaped sheet metal Z can be processed into a shape as shown in FIG. 15 by sequentially performing the above-mentioned operations, but the sheet metal working machine body Y is grounded. Since it can turn horizontally with respect to the table 13, it is only necessary to change the posture of the sheet metal to be processed during the entire working process once when the process (D) is transferred to the process (E). Yes, and in addition, the work of changing the posture thereof only needs to turn over the sheet metal in the width direction. Therefore, FIG.
When complex bending work is performed as shown in FIG. 5, the work can be performed more easily than the process of FIG. 16 performed by the sheet metal working machine shown in FIGS. Since it is unnecessary, the idle space for changing the posture may be small.

[Brief description of drawings]

FIG. 1 is a side view of a sheet metal working machine according to an embodiment of the present invention.

FIG. 2 is a plan view of the sheet metal working machine of FIG.

FIG. 3 is a view on arrow III-III in FIG. 1.

FIG. 4 is a partially enlarged sectional view of the sheet metal working machine of FIG.

FIG. 5 is a state change diagram when the sheet metal is bent in the sheet metal working machine of FIG. 1;

6 is a partial cross-sectional view showing another example of use of the sheet metal working machine of FIG.

FIG. 7 is a partial cross-sectional view showing a use state at the time of cutting a sheet metal in the sheet metal working machine of FIG. 1;

FIG. 8 is a state change diagram of the sheet metal processing machine of FIG. 1.

9 is a side view showing another example of use of the sheet metal working machine of FIG. 1. FIG.

10 is a work process diagram for processing the sheet metal to be processed into the shape shown in FIG. 15 by using the sheet metal processing machine of FIG.

FIG. 11 is a side view of a known sheet metal working machine (sheet metal bending machine).

FIG. 12 is an operation explanatory view of the sheet metal working machine of FIG. 11;

FIG. 13 is a side view of the sheet metal processing machine according to the applicant's already filed application.

14 is a state change diagram of the sheet metal processing machine of FIG.

FIG. 15 is a perspective view of a bent metal plate.

16 is a work process diagram for processing the sheet metal to be processed into the shape shown in FIG. 15 by using the sheet metal processing machine of FIG.

[Explanation of symbols]

1 is a base, 2 is a movable unit, 3 is a sheet metal feed mechanism, 4 is a rotary driving device, 5 is an arc rotation operation mechanism, 6 is a support base, 10
Is a holding unit, 11 is an upper holding member, 12 is a lower holding member, 13 is a grounding base, 21 is a mounting base, 22 is an upper lateral frame, 2
3 is a lower horizontal frame, 24 is a vertical frame, 25 is a space part, 60 is a rotating device, P is an arc rotation center, Y is a sheet metal machine main body, Z is a sheet metal to be processed, Za is a sheet metal bending side end portion, Zb is the outer side of the sheet metal,
Zc is a sheet metal holding part.

Claims (2)

(57) [Claims] 1. A base (1), a mounting base (21) mounted to be rotatable up and down with respect to the base (1), and mounted on a front end of the mounting base (21). A pair of upper and lower holding members (1) capable of holding a sheet metal (Z) to be bent by bending from both front and rear sides and having circular outer peripheral surfaces.
A holding unit (10) having a pair of upper and lower holding members (11, 12), and a rotation drive device (4) for rotating the pair of upper and lower holding members (11, 12) in opposite directions. By rotating the holding members (11, 12) in opposite directions, the holding members (11, 1) are rotated.
2) A sheet metal feed mechanism (3) configured to sequentially move the sheet metal (Z) sandwiched between them in the lateral direction.
And an arc turn for rotating the clamping unit (10) in the circumferential direction with respect to the sheet metal feeding direction about the sheet metal clamping section (Zc) by the pair of upper and lower clamping members (11, 12) as a center (P). The moving operation mechanism (5) and the sandwiching portion (Zc) of the sheet metal (Z) by the sandwiching unit (10) at the time of bending operation of the sheet metal (Z) to be machined form a widthwise outer portion (Zb). A grounding stand (1) provided with a sheet metal working machine body (Y) having a supporting stand (6) for supporting, and grounding the sheet metal working machine body (Y) to the ground.
3) Mounted on the rotating device (60) via a rotating device (60) so that the sheet metal working machine body (Y) can be rotated within a range of an angle of 180 ° in a horizontal plane with respect to the grounding base (13). The sheet metal processing machine characterized by 2. The sheet metal working machine according to claim 1, wherein the mounting base (21) has an upper lateral frame (22) to which an upper holding member (11) of the holding unit (10) is attached, and the holding unit (10). Lower lateral frame (2) to which the lower sandwiching member (12) is attached
3) and a vertical frame (24) that connects the upper horizontal frame (22) and the lower horizontal frame (23) at their rear side, and is formed in a U-shape in side view, and in the mount (21). The part surrounded by the upper horizontal frame (22), the lower horizontal frame (23) and the vertical frame (24) accommodates one end side (Za) of the sheet metal (Z) clamped by the clamping unit (10). A sheet metal working machine having a space (25) for carrying out.