JPS63104733A - Product taking-out method in punch press - Google Patents

Abstract

PURPOSE:To simply and easily take-out divided working products by dividing the product worked with a punch press into plural parts, holding them with a separate clamp respectively and utilizing a movable carriage at a product carry-out part. CONSTITUTION:The work W machined by the punch 7 of the upper turret lathe 5 of a turret punch press 1 is cut into a product W1 and W2 with a cutting allowance C as the boundary, W2 is held with the advance of a holding means 28 and released from a clamp 21B. A holding claw device 25 is then moved to the right for a product carryout device 3, a clamp 21A is engaged with the carriage 19. The carriage 19 is moved to the left direction in this state and the clamp 21B is moved to the holdable position of W1 which is held by a clamp 21A. The W1 is held by the clamp 21B, released from the clamp 21A, the carriage is moved to the right direction and the clamp 21B is moved to the right direction as well. The holding claw device 25 is advanced further to hold W1, moved to the right after releasing the clamp 21B from W1, and W1 is carried out to the product transfer device 3.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a method for taking out products in a punch press,
More specifically, the present invention relates to a method for taking out a product in a punch press, in which a product processed by a punch press is divided into an appropriate number of parts, and each divided part can be taken out individually and sequentially.

(Prior art) Conventionally, methods for taking out processed products or leftover materials by combining a punch press and loading/unloading generally involve taking out a single sheet of material, in addition to taking out the product or leftover materials as they are. A method known as a so-called product multiple take-out unloader is known in which a product is cut into a plurality of parts and the cut parts are sequentially unloaded.

(Problem to be Solved by the Invention) However, in the latter method of the prior art, which is the unloader for taking out products multiple times, the clamps that grip the material are individually opened, but the positioning of the clamps relative to the carriage is automatically performed. It cannot be changed inside. That is, when moving the clamp, the carriage always moves. For example, the positional relationship between the two clamps is always the same, and the position of the clamp with respect to the carriage cannot be changed. Furthermore, an electromagnetic holder must be attached to the table, which imposes considerable restrictions on processing and product selection. Furthermore, this method requires as many clamps as the number of products to be divided.

(Objective of the Invention) The object of the present invention was proposed in order to improve the problem in view of the above-mentioned circumstances, and by softening product restrictions and processing restrictions compared to conventional ones, the positioning of the gripping means with respect to the carriage can be performed during automatic operation. The purpose is to provide a method for doing this arbitrarily.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides one of a plurality of gripping means provided in a workpiece moving and positioning device movable in the X-axis direction and the Y-axis direction in a punch press. After dividing the divided part with the gripping means gripping the divided part to be divided from the material by processing of the punch press, one of the gripping means gripping the divided divided piece is moved to the unloading position of the punch press. Releasing the grip on the divided piece, then bringing one gripping means closer to the other gripping means, and then repeating the process of gripping the divided part to be separated from the material again with one gripping means an appropriate number of times. A method for taking out a product in a pande press is configured such that an appropriate number of divided pieces are taken out.

(Function) By employing the method of the present invention, an appropriate number of divided pieces can be easily and simply taken out to the carry-out position from the material processed by the punch press.

(Embodiments of the Invention) Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

Referring to FIG. 1, a product unloading device 3 is disposed near the right side of the turret punch press 1. As shown in FIG.

The turret punch press 1 includes an upper turret plate 5 and a lower turret plate (not shown), and the upper turret plate 5 is equipped with a large number of punches 7. A die paired with this punch 7 is provided on the lower plate of the turret.

A fixed table 9 with approximately the same dimensions as the diameter of the turret upper plate 5 is provided vertically in FIG. be.

A carriage base 15 of the workpiece moving and positioning device is provided that straddles the movable table 11 and is moved and positioned in the Y-axis direction by a servo motor 13. A carriage 19 is provided which can freely move and position the workpiece in the direction of movement and positioning of the workpiece.

The carriage 19 is provided with clamps 21A and 21B as gripping means, the details of which will be described later, to grip the material W.

The product unloading device 3 is provided with a guide rail 23 at a high position in the product unloading direction (X-axis direction), a gripping claw device 25 is movable in the X-axis direction, and a free ball bushing is mounted on the table 27. Two are planted.

As described above, the carriage base 15 is provided with a carriage 19 that is movable in the X@force direction.

More specifically, as shown in FIGS. 2 and 3, on the upper surface of the carriage base 15, a carriage holding member 31 having a T-shaped cross section and having approximately the same length is provided with a downwardly protruding edge portion. 31T is installed separately. Furthermore, a guide rail 33 for carriage movement with a corner [J] is provided extending in the X-axis direction at the lower side of the carriage base 15 facing the punch press 1.

On the side surface of the carriage base 15 on which the guide rail 33 for carriage movement is attached, a carriage 19 having a length of approximately half the length of the carriage base 15 and a groove-shaped cross section is provided so as to be movable in the X-axis direction. A pair of idle rollers 35 are provided at the upper part of the carriage 19 to sandwich the downwardly protruding edge portion 31T of the carriage holding member 31 from the left and right sides as shown in FIG.

A guide rod 37 is provided in the lower part of the carriage joint 19 so as to be slidably inserted thereinto, and which holds the guide rail 33 for moving the carriage from above and below.

A ball screw 39 is provided on the side surface of the carriage base 15 and passes through approximately the center of the carriage 19, which has a groove-shaped cross section as a whole.
It moves in the length direction, that is, in the X-axis direction.

A guide rail 41 having a dovetail cross section is provided on the surface of the carriage 19 facing the punch press 1 and extending over the entire length of the carriage 19. 2 for this guide rail 41
A pair of clamps 21A and 21B is slidably attached via a dovetail groove 43. Above and below the rear ends of the clamps 21A and 21B, the guide rail 41 is provided with upper and lower lips 45 and 47 extending over the entire length of the carriage 19.
It is provided so that it is sandwiched between the upper and lower parts. The upper lip 45 is movable up and down.

A switching locking means 49 is provided on each side of the clamps 21A and 21B.
A and 49B are provided. Note that the upper link of the toggle mechanism is omitted in FIG. 2. Switching locking means 49
A and 49B each have a double-shaft air cylinder 51 near the center,
A locking member 57 on the carriage base 15 side is attached to one piston rod 53 side via a toggle mechanism 55;
It consists of an upper lip 45 as a carriage locking member attached to the other piston rod 53 side via a toggle mechanism 55.

When the piston 59 in the air cylinder 51 moves to the right in FIG. long groove flange 6
It is locked between 1 and 1.

At the same time, the upper lip 45 of the dovetail groove 43 of the main body of the clamp 21A
is moved upward via the toggle mechanism 55 to open the dovetail groove 4.
3 and the dovetail guide rail 41 are released.

When the ball screw 39 is driven and rotated in this state, the clamp 21A remains stationary at that position, and the carriage 19
The ball screw 39 moves either left or right in the X-axis direction in FIG. 2 in proportion to the rotation opening of the ball screw 39.

When the air cylinder 51 is operated in the opposite manner to the above-mentioned operation,
The piston 59 moves to the left in FIG. 3, and the locking member 57 on the carriage base 15 side is released. On the other hand, the clamp 21A and the carriage 19 are locked by the upper lip 45 as a carriage 19-side locking member. When the carriage 19 moves to the left or right in the X-axis direction in FIG. 2 by driving and rotating the ball screw 39, the clamp 21A also moves integrally with the carriage 19.

Although the switching locking means 49A has been described, the structure and operation of the switching locking means 49B are almost the same as those of the switching locking means 49A, so a detailed explanation will be omitted.

Next, the clamp 2 equipped with switching locking means 49A, 49B
The material W clamped to 1A and 21B is the punch press 1
An example of the operation in which the material W is carried out to the product carrying-out device 3 using the gripping claw device 25 after performing a predetermined punching process will be explained with reference to FIG.

(1) in Fig. 4 shows the processed material W and the cutting allowance C.
The state is shown in which the material W+ is divided into the material W2 and the material W2 at υ, and the material W2 is then carried out to the product carrying-out device 3 using the gripping electric device @25 as a carrying-out means. In (1) of Fig. 4, material W1 is held by material F4W2 by clamp 21A.
is held by the clamp 21B. Further, the carriage 19 is at an unloading position on the side opposite to the origin O, and is waiting for the gripping claw device 25 to move forward.

In (2) of FIG. 4, the gripping claw device 25 moves forward;
Grip the material W2 and release the material W2 from the clamp 21B. In this state, the gripping claw device 25 is not taken out to the right in (2) of FIG. 4, that is, to the product unloading device 3.

In (3) of FIG. 4, the switching locking means 49A is activated to release the clamp 21A from one carriage. Clamp 21B is in engagement with carriage 19. . In this state, the carriage 19 is moved to the left, and the clamp 21B is moved to a position where the material W1 held by the clamp 21A can be gripped.

In (4) of FIG. 4, the material W1 is gripped by the clamp 21B, and the clamp 21A operates the switching locking means 49A to engage the clamp 21A with the carriage 19, and at the same time, releases the clamp 21A from the material W1. .

In (5) of Fig. 4, the clamp 21A is connected to the material W1.
By moving one carriage to the right in the released state), the clamp 21B also moves to the right. Thus, the material W1 is set at a position where it can be unloaded, that is, at an unloading position.

In (6) of FIG. 4, the gripping claw device 25 moves forward;
Grip the material W1. After the clamp 218 is released from the material W1, the gripping claw device 25 moves to the right and the material W1 is delivered to the product delivery device 3.

Thereafter, the carriage 19 returns to the next loading preparation position, and the clamps 21Δ, 21B are positioned at the initial set positions by the Ni program.

The example shown in Fig. 4 is a method for taking out a product that is divided into two pieces, but if the product that is divided into an appropriate number of pieces is not taken out, the above-mentioned process can be repeated an appropriate number of times. It is possible.

(Effects of the Invention) As understood from the description of the embodiments above, according to the present invention, at least two gripping means for gripping the material divide the material into an appropriate number of sheets and divide the material from the delivery position. This has the effect that the pieces can be easily and easily taken out.

By the way, the present invention is not limited to the embodiments described above, but can be implemented in its various forms by making appropriate changes.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a turret punch press and a product delivery device according to an embodiment of the present invention. Figure 2 is a perspective view of the part shown by the ■ arrow in Figure 1, and
The figure is an enlarged sectional view taken along the line ■-■ in FIG. 2. FIGS. 4(1) to 4(6) are operation explanatory diagrams for explaining the product takeout operation in the present invention. (Explanation of symbols representing main parts of the drawings) 1... Turret punch press 3... Product unloading device 5... Turret upper plate 15... Carriage base 19... Carriages 21A, 21B... Clamp 25...Gripping claw device agent Patent attorney Yasuo Miyoshi Figure 1 Figure 4 (1) Figure 4 (3) 15'' Figure 4 (5) 15' Figure 4 (2) Figure 4 (4) W. Figure 4 (6)

Claims (2)

[Claims] (1) A divided portion that is separated from the material by processing of the punch press on one of the plurality of gripping means provided in the workpiece moving and positioning device that is movable in the X-axis direction and the Y-axis direction in the punch press. After dividing the divided parts while gripping the divided pieces, move one of the gripping means that grips the divided pieces to the unloading position of the punch press to release the grip on the divided pieces, and then move one gripping means to the other gripping means. A product in a punch press characterized in that the process of bringing the divided pieces close to the means and then gripping the divided parts to be divided from the material again with one gripping means is repeated an appropriate number of times to take out an appropriate number of divided pieces. How to take out. (2) There is a carry-out means that comes to take the divided pieces to the carry-out position,
2. A method for taking out a product in a punch press according to claim 1, wherein one of the gripping means is released after the unloading means grips the divided piece.