JP4257715B2 - Shearing machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a shearing machine, and more particularly to a shearing machine in which a workpiece is accurately positioned without dropping during positioning, and a sheared workpiece can be carried forward without removing a remaining workpiece.
[0002]
[Prior art]
[0003]
(1) First prior art (FIG. 9).
A conventional shearing machine has a configuration shown in FIG. 9, for example.
[0004]
That is, in FIG. 9, the shearing machine includes a lower blade 62 attached to the rear portion of the table 60, a work plate presser 61 just above it, an upper blade 63 attached to a ram 64 that moves up and down, and a work W. It has a back gauge 70 for positioning.
[0005]
The back gauge 70 has an abutment 67, and the abutment 67 is screwed into a ball screw 68 via a nut 66. The ball screw 68 is coupled to a motor 69, and the motor 69 is connected to the ram. 64 is fixed to a ram frame 65 that is integrally attached to 64.
[0006]
With this configuration, first, the abutment 67 is moved in the Y-axis direction by adjusting the position by operating the motor 69 and rotating the ball screw 68.
[0007]
In this state, the workpiece W loaded via the table 60 is positioned by abutting against the abutment 67 of the back gauge 70, and then the upper blade 63 is lowered via the ram 64 and cooperates with the lower blade 32. The workpiece W is sheared.
[0008]
(2) Second prior art (FIG. 10).
[0009]
Another conventional shearing machine has a configuration shown in FIG. 10, for example.
[0010]
That is, in FIG. 10, the shearing machine has a conveyor belt 71 below the back gauge 70.
With this configuration, the work W carried in via the table 60 is positioned by abutting against the abutment 67 of the back gauge 70 as described above (FIG. 9), and then the conveyor belt 71 is inclined downward and the ram 64 Then, the upper blade 63 is lowered, and the workpiece W is sheared in cooperation with the lower blade 32.
[0012]
After the shearing process, the conveyor belt 71 is leveled and reversed so that the work W1 subjected to the shearing process is conveyed forward through the table 60.
[0013]
[Problems to be solved by the invention]
[0014]
(1) Problems of the first prior art (FIG. 9).
[0015]
However, in the conventional shearing machine shown in FIG. 9, no means for supporting the workpiece W is provided below the back gauge 70.
[0016]
For this reason, when trying to position the workpiece W carried in via the table 60 against the abutment 67, the workpiece W may hang down, and accurate positioning may not be possible.
[0017]
(2) Problems of the second prior art (FIG. 10).
[0018]
Further, in the conventional shearing machine shown in FIG. 10, if the original work W remaining on the table 60 is large, the conveyor belt 71 runs idle and is blocked by the remaining work W and is sheared. Work W1 cannot move forward.
[0019]
Therefore, unless the remaining workpiece W is removed in advance, the sheared workpiece W1 cannot be carried forward via the table 60, and the carry-out efficiency is lowered.
[0020]
An object of the present invention is to provide a shearing machine that improves the unloading efficiency by accurately positioning the workpiece without sagging during positioning, and unloading the remaining workpiece before unloading the sheared workpiece. To do.
[0021]
[Means for Solving the Problems]
[0022]
In order to solve the above problems, the present invention, as shown in FIG.
Behind the table 2 upper blade 6 and the lower blade 3 and the back gauge 7 and the conveyor device 12 is installed respectively, the conveyor 12 is central with reverse-forward can disposed on both sides of the endless conveyor belt 16 a, 16 b and 16 c , and the back gauge 7 is disposed between the endless conveyor belt 16 a in the center and the endless conveyor belts 16 b and 16 c on both sides, and the conveyor device 12 and the back gauge 7 are provided to be movable up and down. In addition, a means called a shearing machine is provided in which the abutment 10 of the back gauge 7 is provided so as to be movable in the front-rear direction and the up-down direction with respect to the conveyor device 12.
[0023]
Therefore, according to the configuration of the present invention, since the back gauge 7 is incorporated into the conveyor device 12, the workpiece W can be abutted against the back gauge 7 while being supported by the conveyor device 12 (FIG. 6 ( A)), the positioning is performed accurately without the workpiece W hanging down.
[0024]
Further, since the sheared workpiece W1 is clamped by the back gauge 7, the workpiece W1 is advanced through the conveyor device 12 and carried out through the table 2 while pushing out the remaining workpiece W (FIG. 6D). The sheared workpiece W1 can be carried forward without removing W, so that the carrying efficiency is improved without bothering the operator.
[0025]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described with reference to the accompanying drawings by embodiments.
FIG. 1 is an overall view showing an embodiment of the present invention.
[0026]
The shearing machine has a side frame 4, and a lower frame 1 is provided below the front side of the side frame 4.
[0027]
A table 2 is attached to the upper portion of the lower frame 1, and a lower blade 3 is provided on the rear shoulder of the table 2.
[0028]
A ram 5 that can move up and down is attached to the side frame 4, and an upper blade 6 is attached to the lower portion of the ram 5, and the upper blade 6 and the lower blade 3 cooperate with each other through the workpiece W. Shearing is performed.
[0029]
Further, an upper frame 32 is provided at the front upper portion of the side frame 4, and a work plate presser 33 that can move up and down is attached to the lower portion of the upper frame 32.
[0030]
A back gauge 7 is installed below the side frame 4, and the back gauge 7 is incorporated in a conveyor device 12 (FIGS. 2 and 3).
[0031]
That is, the conveyor device 12 (FIG. 2) is composed of endless conveyor belts 16a, 16b, and 16c arranged in parallel in the X-axis direction, and the central endless conveyor belt 16a is formed wide (FIG. 3). The endless conveyor belts 16b and 16c on both sides are formed narrow.
[0032]
The back gauge 7 is disposed between the central endless conveyor belt 16a and the endless conveyor belts 16b and 16c on both sides.
[0033]
The conveyor device 12 includes support frames 13a, 13b, and 13c, and the back gauge 7 includes a housing frame 37.
[0034]
Cylinders 21 and 22 are coupled to the front portions of the support frames 13a, 13b, and 13c and the front portion of the housing frame 37 (FIGS. 1 and 2), respectively.
[0035]
That is, on the base frame 29 (FIG. 1) on the floor 27, the cylinders 21 and 22 are installed at portions corresponding to the front portions of the support frames 13a, 13b, and 13c and the front portion of the housing frame 37. Yes.
[0036]
The piston rods 23 and 25 of the cylinders 21 and 22 are coupled to the front portions of the support frames 13a, 13b and 13c and the housing frame 37 via hinge pins 24 and 26, respectively.
[0037]
The rear portions of the support frames 13a, 13b, and 13c and the rear portion of the housing frame 37 are pivotally attached to the base frame 29 via a drive shaft 17 described later at the same height as the table 2.
[0038]
With this configuration, the cylinders 21 and 22 are operated and the back gauge 7 and the conveyor device 12 are swung in the vertical direction with the drive shaft 17 as a fulcrum, for example, to be level with the table 2 (for example, FIG. 6A). ) Or lower than the table 2 (for example, FIG. 6C).
[0039]
Further, the cylinder 21 of the conveyor device 12 and the cylinder 22 of the back gauge 7 may operate simultaneously (for example, FIG. 7B), or may operate separately (for example, FIG. 7C).
[0040]
Endless conveyor belts 16a, 16b, and 16c are rotatably attached to the support frames 13a, 13b, and 13c.
[0041]
That is, driven pulleys 14a, 14b, and 14c are connected to the front ends of the support frames 13a, 13b, and 13c via a common driven shaft 20, and drive pulleys 15a and 14c are connected to the rear ends of the support frames 13a, 13b, and 13c via a common drive shaft 17. The common drive shaft 17 is coupled to the rotation shaft 41 of the motor M on the base frame 29 via the timing belt 40.
[0042]
Endless conveyor belts 16a, 16b and 16c are wound around the driven pulleys 14a, 14b and 14c and the drive pulleys 15a, 15b and 15c.
[0043]
The endless conveyor belts 16a, 16b and 16c are guided by auxiliary pulleys 18a and 19a, 18b and 19b, 18c and 19c attached to the insides of the driving pulleys 15a, 15b and 15c and the driven pulleys 14a, 14b and 14c. ing.
[0044]
The common driven shaft 20 (FIG. 2) extends in the X-axis direction through an opening 37B that is long in the vertical direction formed in the housing frame 37 of the back gauge 7 (FIG. 4). The inside of the opening 37B can be moved up and down.
[0045]
Further, the common drive shaft 17 extends in the X-axis direction through a circular opening 37 </ b> C formed in the housing frame 37.
[0046]
With this configuration, the endless conveyor belts 16a, 16b, and 16c operate the cylinder 21 so that the endless conveyor belts 16a, 16b, and 16c do not interfere with the back gauge 7 independently of each other, as shown in FIG. 7C, for example. The driven shaft 20 side can be lifted and tilted.
[0047]
The endless conveyor belts 16a, 16b, and 16c can be rotated in the reverse direction and the normal direction by driving the motor M (FIGS. 1 and 2).
[0048]
For example, at the time of the separation process in the support mode (FIG. 7C), the driven shaft 20 side is raised as described above to incline the entire conveyor device 12 with respect to the back gauge 7, and then the endless conveyor belt 16a. , 16b, and 16c are reversed to move the sheared workpiece W1 forward so as to be separated from the opened abutment 10 once.
[0049]
Further, for example, in the carrying-out process of the support mode (FIG. 7D), after the abutment 10 of the back gauge 7 is immersed, the endless conveyor belts 16a, 16b, and 16c are sheared by normal rotation. The workpiece W1 is passed over the immersed abutment 10 and stored in the workpiece storage device 28 via an alignment plate 30 described later.
[0050]
On the other hand, a ball screw 8 that is rotationally driven by a Y-axis motor My is housed in a housing frame 37 of the back gauge 7, and a nut 9 that is screwed into the ball screw 8 is abutted via an attachment member 11. 10 is attached, and the abutment 10 has a notch 10A at the front thereof.
[0051]
Further, a long groove 37A extending in the Y-axis direction (FIG. 4) is formed immediately above the ball screw 8, and the width of the long groove 37A is slightly larger than the width of the abutment 10.
[0052]
With this configuration, when the Y-axis motor My is operated (FIG. 5A), the abutment 10 moves in the Y-axis direction along the long groove 37A.
[0053]
Thereby, for example, the position of the abutment 10 at the time of positioning the workpiece W (for example, FIG. 6A) is adjusted, and positioning can be performed by abutting the workpiece W against the notched portion 10A of the adjusted abutment 10. .
[0054]
In this case, the workpiece W (for example, FIG. 6A) can be positioned against the abutment 10 while being supported by the endless conveyor belts 16a, 16b, and 16c of the conveyor device 12.
[0055]
Therefore, according to the present invention, the workpiece W is accurately positioned without sagging during positioning.
[0056]
The abutment 10 is attached to the attachment member 11 via a rotating shaft 38 so as to be freely opened and closed. A cylinder 42 is fixed to the rear surface of the attachment member 11, and the cylinder 42 is coupled to the rear bottom surface of the abutment 10. ing.
[0057]
With this configuration, the abutment 10 operates the cylinder 42 (FIG. 5B) and rotates and closes the rotating shaft 38 to clamp the workpiece W1 that has been sheared, for example.
[0058]
Therefore, by operating the Y-axis motor My in this state, the workpiece W1 that has been sheared is moved forward on the conveyor device 12 while being clamped by the abutment 10, and the remaining workpiece W is pushed out while pushing the remaining table 2 forward. (FIG. 6D).
[0059]
Therefore, according to the present invention, since the workpiece W1 that has been sheared can be carried forward without removing the workpiece W remaining on the table 2, the carrying-out efficiency is improved.
[0060]
The attachment member 11 to which the abutment 10 is attached is coupled to the nut 9 via a cylinder 35, a guide 39 and a support rod 36.
[0061]
With this configuration, when the cylinder 35 is operated, the abutment 10 moves up and down, so that the abutment 10 can be projected and retracted with respect to the long groove 37A having a larger width (FIG. 5C).
[0062]
For example, when positioning the work W carried in via the table 2 (for example, FIG. 6 (A)), the cylinder 35 is operated and the abutment 10 is protruded from the long groove 37A (FIG. 5 (A)). ).
[0063]
Further, for example, during the unloading process in the return mode (FIG. 6D), the workpiece W1 that has been sheared with the abutting 10 protruding from the long groove 37A by operating the cylinder 35 is clamped and unloaded from the front. (FIG. 5B).
[0064]
However, during the unloading process in the support mode (FIG. 7D), the cylinder 35 is operated to immerse the abutment 10 from the long groove 37A (FIG. 5C), and the endless conveyor belts 16a and 16b thereon. , 16c so that the workpiece W1 sheared is conveyed backward.
[0065]
Further, a work shooter 34 is provided at the front end of the endless conveyor belts 16a, 16b and 16c constituting the conveyor device 12, and the alignment plate 30 is provided at the rear end.
[0066]
With this configuration, when the remaining material Wa is formed (FIG. 8B), the remaining material Wa is dropped into the scrap box 31 on the floor 27 (FIG. 1) by opening the work shooter 34. .
[0067]
Further, for example, in the under mode (FIG. 8A), the sheared workpiece W1 is above the immersed abutment 10 and on the endless conveyor belts 16a, 16b, and 16c of the inclined conveyor device 12. It is conveyed and stored in the work storage device 28 via the alignment plate 30.
[0068]
The operation of the present invention having the above configuration will be described below.
[0069]
(1) Operation in return mode (FIG. 6).
[0070]
(1) Operation during the positioning process (FIG. 6A).
[0071]
During the positioning process (FIG. 6 (A)), the cylinders 21 and 22 are actuated to raise the conveyor device 12 and the back gauge 7 to the same height as the table 2 to be horizontal, and from the long groove 37A (FIG. 4, FIG. 5 (A)) The position at the time of positioning of the workpiece W is adjusted by moving the protruding abutment 10 in the front-rear direction.
[0072]
In this state, the work W carried in via the table 2 is positioned against the abutment 10 while being supported by the endless conveyor belts 16a, 16b, 16c of the conveyor device 12.
[0073]
(2) Operation during the clamping process (FIG. 6B).
[0074]
Next, the cylinder 35 is operated (FIGS. 4 and 5B) to close the abutment 10 (FIG. 6B), thereby clamping the positioned workpiece W.
[0075]
In this case, the conveyor device 12 that supports the workpiece W and the back gauge 7 that clamps the workpiece W remain horizontal.
[0076]
(3) Operation during the shearing process (FIG. 6C).
[0077]
At the time of the shearing process (FIG. 6C), the cylinders 21 and 22 are operated in advance immediately before that to incline the conveyor device 12 and the back gauge 7 downward with respect to the table 2.
[0078]
In this state, the upper blade 6 is lowered, the workpiece W is sheared in cooperation with the lower blade 3, and the sheared workpiece W1 is inclined while being clamped by the closed abutment 10. It is received by the endless conveyor belts 16a, 16b, 16c of the apparatus 12.
[0079]
(4) Operation during the unloading process (FIG. 6D).
[0080]
During the carry-out process (FIG. 6C), the cylinders 21 and 22 are operated to raise the conveyor device 12 and the back gauge 7 to the same height as the table 2 to be horizontal.
[0081]
If the abutment 10 is advanced in this state, the sheared workpiece W1 advances on the endless conveyor belts 16a, 16b, and 16c while being clamped by the abutment 10.
[0082]
Accordingly, the sheared workpiece W1 is carried out through the table 2 while pushing out the workpiece W remaining on the table 2 at the front end thereof.
[0083]
(2) Operation in the support mode (FIG. 7).
[0084]
(1) Operation during the positioning process (FIG. 7A).
[0085]
During the positioning process (FIG. 7A), as in the positioning process in the return mode of (1), the cylinders 21 and 22 are operated to raise the conveyor device 12 and the back gauge 7 to the same height position as the table 2. The position at the time of positioning of the workpiece W is adjusted by moving the abutment 10 protruding from the long groove 37A (FIGS. 4 and 5A) in the front-rear direction while making it horizontal.
[0086]
In this state, the work W carried in via the table 2 is positioned against the abutment 10 while being supported by the endless conveyor belts 16a, 16b, 16c of the conveyor device 12.
[0087]
(2) Operation during the shearing process (FIG. 7B).
[0088]
At the time of the shearing process (FIG. 7B), the cylinders 21 and 22 are operated in advance immediately before that to incline the conveyor device 12 and the back gauge 7 downward with respect to the table 2.
[0089]
In this state, the upper blade 6 is lowered, the workpiece W is sheared in cooperation with the lower blade 3, and the sheared workpiece W1 is inclined while being in contact with the protruding abutment 10. It is received by the endless conveyor belts 16a, 16b, 16c of the apparatus 12.
[0090]
(3) Operation during the separation process (FIG. 7C).
[0091]
Next, the cylinders 21 and 22 are operated to return the conveyor device 12 and the back gauge 7 to a horizontal position, and then only the cylinder 21 is operated to tilt the conveyor device 12 slightly above the back gauge 7 (FIG. 7C). Further, the cylinder 42 is operated (FIG. 4) to open the abutment 10.
[0092]
If the endless conveyor belts 16a, 16b, 16c of the conveyor device 12 are reversed in this state (FIG. 7C), the sheared workpiece W1 moves forward and separates from the opened abutment 10.
[0093]
(4) Operation during the unloading process (FIG. 7D).
[0094]
At the time of the unloading process (FIG. 7D), the cylinder 35 is operated (FIGS. 4 and 5C) while the positional relationship between the conveyor device 12 and the back gauge 7 remains unchanged, and the abutment 10 is immersed.
[0095]
If the endless conveyor belts 16a, 16b, and 16c of the conveyor device 12 are rotated forward in this state (FIG. 7D), the sheared workpiece W1 passes above the immersed abutment 10. Then, it is conveyed rearward and stored in the work storage device 28 via the alignment plate 30.
[0096]
Thereafter, the conveyor device 12 is kept horizontal as with the back gauge 7.
[0097]
(3) Operation in under mode (FIG. 8).
[0098]
When the operation in the under mode is performed (FIG. 8), the conveyor device 12 and the back gauge 7 are inclined in advance so that the rear part is on the top.
[0099]
In this state, during the shearing process (FIG. 8A), the workpiece W is sheared by the cooperation of the upper blade 6 and the lower blade 3, and the sheared workpiece W1 is endless of the inclined conveyor device 12. It is received by the conveyor belts 16a, 16b, 16c.
[0100]
Then, after actuating the cylinder 35 (FIGS. 4 and 5C) to immerse the abutment 10, the endless conveyor belts 16a, 16b, and 16c are rotated forward (FIG. 8A). The processed workpiece W1 passes over the immersed abutment 10 and is conveyed rearward, and is stored in the workpiece storage device 28 via the alignment plate 30.
[0101]
Further, during the remaining material processing step (FIG. 8B), the work shooter 34 is opened, and the remaining material Wa is dropped into the scrap box 31 immediately below.
[0102]
【The invention's effect】
As described above, according to the present invention, by incorporating the back gauge into the conveyor device, the workpiece can be positioned by abutting against the back gauge while being supported by the conveyor device, so that the workpiece does not hang down accurately. Positioning is performed, and the sheared workpiece is clamped with a back gauge, and the workpiece is moved forward through the conveyor device while pushing out the remaining workpiece, so that it is sheared without removing the remaining workpiece W. Thus, it is possible to carry out the workpiece forward, thereby providing an effect of providing a shearing machine that improves the carry-out efficiency without bothering the operator.
[0103]
[Brief description of the drawings]
FIG. 1 is an overall view showing an embodiment of the present invention.
FIG. 2 is a diagram showing a relationship between a back gauge 7 and a conveyor device 12 according to the present invention.
FIG. 3 is a plan view of FIG. 2;
FIG. 4 is a diagram showing details of a back gauge 7 according to the present invention.
FIG. 5 is an operation explanatory diagram of FIG. 4;
FIG. 6 is a diagram illustrating an operation in a return mode according to the present invention.
FIG. 7 is a diagram illustrating an operation according to a support mode of the present invention.
FIG. 8 is a diagram illustrating an operation in an under mode according to the present invention.
FIG. 9 is an explanatory diagram of the first prior art.
FIG. 10 is an explanatory diagram of the second prior art.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Lower frame 2 Table 3 Lower blade 4 Side frame 5 Ram 6 Upper blade 7 Back gauge 8 Ball screw 9 Nut 10 Abutting 11 Attachment member 12 Conveyor apparatus 13 Conveyor frame 14 Driven pulley 15 Drive pulley 16 Conveyor belt 17 Drive shaft 18, 19 Auxiliary pulley 20 Drive shaft 21, 22, 35, 42 Cylinder 23, 25 Piston rod 24, 26 Hinge pin 27 Floor 28 Work storage device 29 Base frame 30 Alignment plate 31 Scrap box 32 Upper frame 33 Work plate holder 34 Work shoe 36 Support Rod 37 Frame support 38 Rotating shaft 39 of the abutment 10 Guide 40 Timing belt 41 Rotating shaft W of the motor M Work W1 Sheared work Wa Remaining material

Claims (1)

The upper and lower blades, the back gauge, and the conveyor device are installed at the rear of the table. The conveyor device has a center and an endless conveyor belt that can be reversed and rotated on both sides of the center. Located between the endless conveyor belt and the endless conveyor belts on both sides, the conveyor device and the back gauge can be moved up and down. A shearing machine characterized by the installation.

Images