JPS61108430A - Multiple production method by punch press - Google Patents

Abstract

PURPOSE:To transfer a small sized product by a holding claw device for the small sized product after its separation by performing a plate pressing effect between the proper number of punches adjoining the final work punch and the corresponding die at the time when the small sized product is separated from a base stock. CONSTITUTION:A base stock W is located at the position of the final punch 29 in case of separating a small sized product 37 from the base stock W. Namely it is the state of leaving the last one punch only after completing almost a nippling work of cutting the outline with finishing various air discharging works inside the area of the product 37. The product 37 is then fixed in the space with the corresponding die 31 by pressing with locating a fluid press device 35 on the upper part of the punches 29, 29 being located in the area of the product 37. The holding claw device 59 of the product 37 holds with approaching the projecting part from the upper turret 25 to the delivery side after performing a cutting by the last punch 29. The pressing of the product 37 by the device 35 is finally released and the product 37 is delivered in the axis X direction.

Description

[Detailed Description of the Invention] a. Field of Industrial Application The present invention relates to a multi-side removal method using a pande press,
More specifically, in separating the small product after punching from the base material, the first step is to position the base material at the punching position of the final punch that performs cutting, and the first step is to position the base material at the punching position of the final punch that performs the cutting, and to place the base material within the area of the small product and to the final punch. A second step of pressurizing the plate with a pressure device installed above an appropriate number of adjacent punches, a third step of performing the above-mentioned cutting, and a small-sized product gripping claw device is applied to the small-sized product from the punch holder. The fourth step is approaching the protruding part on the product delivery side and grasping the small product, and the fifth step is releasing the above-mentioned temporary pressurization and transporting the small product. It is about the method.

b. Prior Art A punch press is originally a processing machine for punching holes of various shapes and sizes into plate materials, and is not a processing machine for the purpose of manufacturing large-sized materials called blanking.

For this purpose, the die was designed so that the punched shards passed through the center of the die and fell downward.

C8 Problems that the invention aims to solveHowever, for example, a turret punch press equipped with a numerically controlled sheet material movement and positioning device uses nibbling processing (a process in which short punches are made in a slightly shifted manner to punch out a shaped object surrounded by straight lines or curves). ) could not be automatically transported.

Means for Solving the d0 Problem The present invention provides a temporary holding action between an appropriate number of punches adjacent to the final processing punch and the corresponding die at the time of cutting the small product from the base material, and the separated product is The gripping claw device C for small products was designed to be carried out.

80 Effects As is already clear, according to the method of the present invention, it has become possible to automatically unload small products, which was not possible with conventional punching presses, and the field of application of punching presses has been expanded. Embodiment FIGS. 1 and 2 show a turret punch press 3 equipped with a numerically controlled plate moving and positioning device 1 implementing the method of the present invention, and peripheral equipment thereof.

At the left end, there is a base material stocker 5 for storing base materials W such as various standard length materials, and the base materials W are sent onto the left and right movable tables 9, 11 of the turret punch press 3 via a roller conveyor 7. come.

The carriage base 13 spanning the left and right movable tables 9 and 11 described above is driven by an electric motor m15 (see FIG. 2), and is guided by guide rails 17 and 17 so that it can be moved and positioned in the Y-axis direction.

The carriage base 13 is provided with a carriage (not shown) that is driven by an electric motor 19 (see FIG. 2) and is guided by the carriage base 13 and can be moved and positioned in the X-axis direction. A gripping claw device 21 is provided.

All the devices shown in FIGS. 1 and 2 are automatically operated according to programs by a numerical control device 23 shown at the bottom of FIG. 2.

The turret punch breath 3 includes an upper turret 25 and a lower turret 27, and the upper turret 25 has a large number of punches 29.
are attached concentrically, and a die 31 corresponding to the punch 29 is attached to the lower turret 27 at a corresponding position.

A striking element 33 which is driven up and down by a crankshaft or the like from the upper machine frame is provided in front of the center line of the upper turret 25 and lower turret 27, and strikes the head of the punch 29.

Shown next to the striker 33 at the center of the turret punch press 3 in FIG. 1 is a fluid pressure device 35, which will be described later.
acts as a temporary hold for the small product 37 (see FIG. 3).

Also, a part of the carriage base 13 is cut away to show the ball bush 39 that supports small products 37, etc.
As will be described later, the upper surface of the pole bushing 39 is lowered from the upper surface of the movable table 11 by the hydraulic cylinder 41 as necessary.

Furthermore, what is shown on the right side of the fluid pressure device 35 in FIG. It is something that makes you immovable.

A scrap box 45, a wide roller conveyor 47, a small and medium roller conveyor 49, a product stocker 51, etc. are provided on the discharge side of the turret punch press 3.

Between the product stocker 51 and the turret punch brace 3,
Rails 53 and 55 provided at high positions parallel to the X-axis direction
A gripping claw device 57 for carrying out a large product (not shown) with the same width as the base material W is suspended from the rail 53.

A small product 3 is placed on the rail 55 closer to the striker 33.
A gripping claw device 59 for carrying out the 7 is suspended.

Next, a procedure for using the punch 29 adjacent to the plate moving and positioning device 1 and the processing punch 29 for the temporary holding action will be explained with reference to FIG. 3, which is shown by the cross-sectional line in FIG.

In addition to the upper turret 25 suspended from the upper machine frame 61 of the turret punch press 3, there is also a carriage base 13 that moves and positions the base material W in the Y-axis direction by numerical control.
and a carriage 63 for moving and positioning in the X-axis direction.

The Y-axis screw 65 suspended from the upper machine frame 61 is rotationally driven by an electric motor 15 such as a servo motor, and a nut member 67 is screwed into the Y-axis screw 65.
moves and positions the carriage base 13 in the Y-axis direction.

1 parallel to the X-axis direction in the carriage base 13
There is an X-axis screw 69 provided therein, which is rotationally driven by an electric motor 19 such as a servo motor, and the carriage 63 is moved and positioned in the X-axis direction by a nut member (not shown) that is screwed into the screw.

The base material W is held by the gripping claw device 21 attached to the carriage 63 and positioned between the bump 29 and the die 31.

The punches 29 and dies 31 shown in FIG. 3 are not located directly below the striker 33, but are adjacent punches and dies located within the area of the small product 37 to be cut off.

One of the adjacent punches 29, 29 is provided with a movable fluid pressure device 35 as shown in FIGS. 4 and 5.

That is, two arc-shaped rails 71 are provided on the lower surface of the upper machine frame 61 of the turret punch press 3, and a fan-shaped plate is guided by these rails and driven by an output shaft pinion 75 of an electric motor 73 such as a servo motor, so that it can be moved and positioned. 77 is provided.

The above-mentioned fluid pressure device 35 is attached to the lower surface of this fan-shaped plate 77, and a flat plate 81 of a size capable of pressurizing the heads of an appropriate number of punches 29 is provided at the lower end of the piston rod 79.

In this case, the pressurizing force that pressurizes an appropriate number of punches 29 of the fluid pressure device 35 is maintained at a pressure that is weaker than the total reaction force of the strip springs 83 (see FIG. 3) of the appropriate number of punches 29. .

The invention will now be explained in detail with reference to FIG. 6.7.8.9.

In the first step, when separating the small product 37 from the base material W,
As shown in FIG. 6, the final punch 29 (sixth
The base material W is located at the position (indicated by a middle day in the figure).

In other words, after finishing various punching holes within the area of the small product 37,
This is the state in which the contour cutting and nibbling process has been completed for 9 minutes and only the final punch remains (Figure 6).

In the next second step, a fluid pressure device 35 is placed above the punches 29 and 29 located in the area of the small product 37 to apply pressure and fix the small product 37 between the corresponding die 31. (Temporary pressurization) As shown in Fig. 3, the punch 29
is equipped with a strip spring 83 between the shoulder of the punch guide 85, and on the upper surface of the upper turret 25 there is a lift spring 87 that supports the entire punch structure II including the punch guide 85. .

In this way, when the flat pA81 of the fluid pressure device 35 presses the upper part of the punch 29 with a pressing force smaller than the reaction force of the strip spring 83, the punch guide 85 compresses only the lift spring 87 and creates a space between it and the die 31. Small product 37
hold down.

In other words, the temporary holding action can be performed using the general punch 29 which can perform punching operations using the striking member 33.

The third step is a step of cutting with a final punch.

Next, in the fourth step, the gripping claw device 59 of the small product 37 approaches the portion protruding from the upper turret 25 toward the delivery side and grips the small product 37. (The state shown in FIG. 7) The next fifth step is to release the pressure on the small product 37 by the fluid pressure device 35, and
This is the state shown in FIG. 8 in which the small product 37 is carried out in the X-axis direction.

FIG. 9 shows that when stacking small products 37 in the product stocker 51, if necessary, a width adjustment device 89 is used to move small products 37 to the Y.
The case of movement in the axial direction is shown.

Note that a step of lowering the ball bush 39 described above to a lower height position than the upper surface of the movable table 11 by the fluid pressure cylinder 41 may be added between the third step and the fourth step.

This is done as necessary for the purpose of avoiding interference with the ball bush 39 when the upper surface of the ball bush 39 is the pass line of the small product 37 and the gripping claw device 59 of the small product 37 approaches the small product 37. It is something.

g9 Effects of the Invention As is clear from the above detailed explanation, the method of the embodiment of the present invention adds some equipment to the punch press and increases the temporary pressing process for small products, thereby making it possible to use base materials that could not be produced in the past. This made it possible to automatically transport the separated small products.

In other words, the multi-piece production method based on the technical idea of the present invention has expanded the field of application by making it possible to automatically unload small products using a punch press, which was previously impossible.

It is also clear that some process changes can be easily made without departing from the technical idea of the present invention.

[Brief explanation of drawings]

Fig. 1 is an elevational view of a line illustrating the entire process of an example of implementing the method of the present invention; Fig. 2 is a plan view of the same as above; Fig. 3 is an elevation of a base material gripping and positioning device and a punch that performs a temporary holding action. Top view Figure 4 is an explanatory plan view of a movable positioning type fluid pressure device that uses a punch for temporary holding. Figure 5 is an elevational view of Figure 4. Figure 6 is an explanatory diagram of the first, second, and third steps. FIG. 7 is an explanatory diagram of the fourth step. FIG. 8 is an explanatory diagram of the fifth step. FIG. 9 is an explanatory diagram of width adjustment to be added as necessary. (Explanation of symbols representing main parts of the drawings) 1... Plate material movement and positioning device, 3... Turret punch press, 25... Upper turret, 29... Punch,
33... Striker, 35... Fluid pressure device, 37...
Small product, 59...Gripping claw device (for small product), 77
...Sector plate, 83...Strip spring, 87
...Lift spring. Agent Patent Attorney Yasuo Miyoshi Figure 3 Figure 4 ° Figure 5

Claims (3)

[Claims] (1) In separating the small product after punching from the base material, the first step is to position the base material at the punching position of the final punch that performs cutting, and the first step is to position the base material at the punching position of the final punch that performs cutting, and to be located within the area of the small product and adjacent to the final punch. a second step in which a pressure device installed above an appropriate number of punches presses the plate, a third step in which the final punch performs the above cutting, and a small product gripping claw device is used to hold the small product. The method is characterized by consisting of a fourth step of approaching a portion protruding from the punch holder toward the product delivery side and grasping the small product, and a fifth step of releasing the plate pressurization described above and transporting the small product. Multi-piece punching method using a punch press. (2) The plate pressing force applied by the pressurizing device provided above the appropriate number of punches adjacent to the final punch is weaker than the biasing force of the strip springs of the appropriate number of punches. A method for producing multiple pieces using a punch press according to claim 1. (3) A patent claim characterized in that, between the third and fourth steps, a step of lowering the ball bush that supports the small product to a height below the top surface of the table that holds the ball bush is added. A method for producing multiple pieces using a punch press according to item 1.