JP3713915B2 - Sheet material processing equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a plate material processing apparatus such as a turret punch press, and to a configuration for separating a product from a material plate material without impairing the accuracy of a product processing shape.
[0002]
[Prior art]
Some plate material processing apparatuses (turret punch presses) have a configuration in which a sub-head dedicated to punching a micro joint is disposed at a predetermined distance from the main punch in addition to the main punch (turret). In the machine having this structure, the main punch is used to perform various types of drilling as product processing on the material plate material, as well as product outer shape processing that forms the outer shape of the product leaving the micro joint, that is, nibbling processing. Conventionally, one micro joint is left for one nibbling process. When all the products are processed by the main punch for one material plate material, the material plate material is conveyed so that the micro joint is positioned at the cutting position of the sub head, and the micro joint is cut by the sub head. The product is separated from the plate material (plate removal processing).
[0003]
[Problems to be solved by the invention]
However, in conventional plate material processing, when the plate material is moved to set the sub head, the product and the raw material plate material are simply connected by a single micro-joint. In some cases, the cutting position does not overlap well with the micro joint, and the shape of the product after separation from the raw material plate is deteriorated.
[0004]
[Means for Solving the Problems]
The present invention uses the following means in order to solve the above problems. First, in the invention according to claim 1, a plate material positioning means for moving and positioning a plate material, a first processing head for performing product processing on the plate material, and a second processing head disposed away from the first processing head, A plate material processing apparatus comprising: a plate material positioning means; a first processing head; and a processing control means for controlling the second processing head, wherein the processing control means includes both processing heads on the first processing head. The outer shape of the product is left to leave two micro joints corresponding to each cutting position, and the plate material is stationary on each micro joint arranged at each cutting position on the first processing head and the second processing head. A plate material processing apparatus to be cut in a state is configured.
[0005]
In addition, in the invention according to claim 2, in addition to the invention according to claim 1, the processing control means performs product outer shape processing in which the two micro joints are left on one plate material in the first processing head. At least one is performed, and after completion of all product processing on the plate material, each micro joint corresponding to each cutting position by both processing heads is cut.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a perspective view of a punch press which is a plate material processing apparatus according to the present invention, FIG. 2 is an internal side view of the punch press, FIG. 3 is a partial side view showing a sub head arrangement portion and a product unloading mechanism in the punch press, 4 is a plan view of the punch press, FIG. 5 is a plan view of the nibbling processed plate material W shown in FIG. 4, FIG. 6 is a plan view of another embodiment of the punch press in which the position of the sub head 5 is changed, and FIG. It is a top view of the board | plate material W after the nibbling process shown in FIG.
[0008]
First, the structure of a turret punch press which is a plate material processing apparatus according to the present invention shown in FIGS. 1 to 4 and 6 will be described. First, in the punch press cover 1, an upper turret 2 and a lower turret 3 as first processing heads are arranged in a vertically opposed manner, and various drilling tools are attached to the upper turret 2, Various dies corresponding to various drilling tools 4 attached to the upper turret 2 are attached to the lower turret 3.
[0009]
The plate material is processed by selecting the drilling tool 4 and the die of the upper turret 2 and the lower turret 3, positioning the plate material W horizontally between the upper turret 2 and the lower turret 3, Drilling is performed with the drilling tool of the upper turret 2. Further, a sub-head 5 for punching a micro joint is attached as a second processing head outside the front portion of the punch press cover 1.
[0010]
A description will be given of a plate material positioning mechanism in processing operations. A center table 7 is fixed on the center of the base 6, and side tables 8 </ b> L and 8 </ b> R are disposed on the left and right sides of the center table 7 so as to be slidable back and forth. The front ends of both side tables 8L and 8R are connected to a cross slide 9, and the cross slide 9 slides back and forth on the base 6 and the side tables 8L and 8R slide back and forth. On the other hand, a slider 10 is attached to the cross slide 9 so as to be slidable in the left-right direction. A plurality (or a plurality) of work holders 11 are provided at the rear end of the slider 10 so as to grip the front end of the plate material W. Is arranged.
[0011]
In such a plate material positioning mechanism, the plate material W gripped by the work holder 11 is disposed between the upper turret 2 and the lower turret 3, as shown in FIG. By the left and right sliding of 10, the gripped plate material W is horizontally moved back and forth and left and right, and the selected drilling tool 4 is positioned with respect to the drilling position.
[0012]
The drive control of the plate material positioning mechanism as described above, the selection drive control of the drilling tool and the die in the upper turret 2 and the lower turret 3, and the drive control of the selected drilling tool 4 and the sub head 5 are as machining control means. It is controlled by the control box 12.
[0013]
The configuration of the punch press as the plate material processing apparatus in the present embodiment is as described above. Next, the plate material processing steps according to the present invention will be described.
[0014]
In order to plate (single) a single product or a plurality of products, a single plate member W is subjected to external processing of each product, that is, nibbling processing that leaves a micro joint. In the present invention, two micro joints M1 and M2 are left as shown in FIGS. 4 and 5 or FIGS. 6 and 7 for one nibbling process (that is, one product outer shape process). Therefore, since one product is connected to the material plate W by two micro joints M1 and M2 in a state before plate cutting, when shifting to plate cutting (micro joint cutting) of the next process. In addition, the product will not be displaced. Therefore, burrs are not left in the portion where the micro joint was present in the product after the plate removal in the next process.
[0015]
4 and 5 show a state where four products A, B, C, and D are nibbled from one plate material W, and each product A, B, C, and D is applied to the plate material W. Thus, the microjoints M1 and M2 arranged in the front-rear direction are connected to each other. On the other hand, the embodiment shown in FIGS. 6 and 7 shows a state where the product E is nibbled while leaving the microjoints M1 and M2 arranged in the left-right direction.
[0016]
4 and 5 and FIGS. 6 and 7, of the micro joints M1 and M2, M1 is the drilling tool 4 of the upper turret 2 (one drilling selected to cut the microjoint M1). Cutting is performed by the tool 4), and M2 is cut by the sub head 5. Here, when the distance between the drilling tool 4 and the sub head 5 is L, as shown in FIGS. 5 and 7, the distance between the micro joints M1 and M2 in the nibbling process of one product is also L, and the drilling tool 4 The direction between the sub heads 5 is also made to coincide with the direction between the micro joints M1 and M2.
[0017]
In addition to leaving two micro joints M1 and M2 for one nibbling process, the distance and direction between both micro joints M1 and M2 are limited, so the positions of both micro joints M1 and M2 are one nibbling. In some cases, the processing is very limited. First, the micro joints M1 and M2 must be positioned on a notch line indicating the outline of each product, and a position where a notch or a hole is formed must be avoided. For this reason, it is sometimes necessary to cut the outline of each product with respect to the plate material W by setting it obliquely like the product B in FIG.
[0018]
The determination of the positions of the micro joints M1 and M2 as described above and the direction of the outline of the product related thereto are calculated by the control computer in the control box 12.
[0019]
In this way, when the outer shape processing and other processing (formation of holes, notches, etc.) of all products that can be cut off with respect to one plate material W are completed, the plate material W is moved, and each micro joint M1 and M2 for one product is moved. The drilling tool 4 and the sub-head 5 are disposed at the cutting positions, and both the microjoints M1 and M2 are cut to perform plate cutting (nesting). At this time, the cutting with the drilling tool 4 and the sub head 5 may be performed at the same time, but may be shifted later. When shifting ahead, for example, when the micro joint M2 is cut after the micro joint M1 is cut first, the micro joints M1 and M2 are arranged in advance at the cutting positions of the drilling tool 4 and the sub head 5, respectively. Therefore, it is not necessary to move the plate material W. That is, both the micro joints M1 and M2 can be cut while the plate material W is stationary. Therefore, there is no fear that the product will be displaced when the micro joint M2 is cut later.
[0020]
Thus, when the plate is cut and each product is separated from the plate material W, it is unloaded. This unloading mechanism will be described with reference to FIGS. A carry-out conveyor 13 that is a roller conveyor is disposed below the center table 7, and a work shooter 14 that can be turned up and down to slide the product onto the carry-out conveyor 13 is a part of the center table 7. Provided. A product of a size or shape that fits within the range of the work shooter 14 (a product whose left-right width is smaller than the width of the work shooter 14) is rotated downward as shown in FIG. It slides down on the carry-out conveyor 13 and is carried out.
[0021]
When the product has a size and shape that cannot be slid down by the work shooter 14, an unloader 15 that is movable on the center table 7 is provided. The gripper 15a for gripping the end of the product and the suction member 15b for sucking the surface of the product are provided, and the product is gripped or sucked and carried out. (The arrow in FIG. 6 indicates the product carry-out direction.) Further, an extension holding portion 15c that can enter the punch press cover 1 is extended from the unloader 15 so that the front and rear length of the product is short, When the width is longer than the width of the work shooter 14, it is sucked and carried out by the extension holding portion 15c. Further, although not shown, it is conceivable to arrange a stock conveyor on the lower side of the unloader 15.
[0022]
【The invention's effect】
The present invention has the following effects by configuring the plate material processing apparatus as described above. First, by configuring as in claim 1, the two micro joints can be cut while the plate material is kept stationary in the last product plate cutting process, so that the product is displaced when each micro joint is cut. No burrs are left on the product after plate removal (after separation from the plate material), and the product accuracy is improved.
[0023]
Further, by configuring as in claim 2, each of the externally processed products is connected to the plate material via two micro joints, so that the plate material is processed during the entire process of all product processing. While moving, it is possible to proceed to the next step of cutting the two micro joints in a state in which each product externally processed on the plate material is not displaced. Combined with this, the product accuracy is more reliably improved.
[Brief description of the drawings]
FIG. 1 is a perspective view of a punch press which is a plate material processing apparatus according to the present invention.
FIG. 2 is an internal side view of the punch press.
FIG. 3 is a partial side view showing a sub head arrangement portion and a product carry-out mechanism in a punch press.
FIG. 4 is a plan view of a punch press.
5 is a plan view of the plate material W that has been nibbled as shown in FIG. 4. FIG.
FIG. 6 is a plan view of another embodiment of the punch press in which the position of the sub head 5 is changed.
7 is a plan view of the plate material W that has been nibbled as shown in FIG. 6. FIG.
[Explanation of symbols]
W plate material M1 (cut with drilling tool 4) micro joint M2 (cut with sub head 5) micro joint 1 punch press cover 2 upper turret 3 lower turret 4 drilling tool 5 sub head 6 base 7 center table 8L / 8R side table 9 Cross slide 10 Slider 11 Work holder 12 Control box 13 Unloading conveyor (roller conveyor)
14 Work shooter 15 Unloader 15a Gripper 15b Adsorption member 15c Extension holding part

Claims (2)

  Plate material positioning means for moving and positioning the plate material, a first processing head for performing product processing on the plate material, a second processing head disposed away from the first processing head, the plate material positioning means, and the first processing A plate material processing apparatus comprising a head and a processing control means for controlling the second processing head, wherein the processing control means has two micros corresponding to each cutting position of both processing heads. A plate material processing apparatus for performing product outer shape processing that leaves a joint, and causing the first processing head and the second processing head to cut each micro joint arranged at each cutting position in a state where the plate material is stationary. .   The processing control means causes the first processing head to perform at least one product outer shape processing that leaves the two micro joints on one plate material, and after all product processing on the plate material is completed, both processing heads The plate material processing apparatus according to claim 1, wherein each micro joint corresponding to each cutting position is cut.

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