JPH0810442Y2 - Punch press work shooter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Use) The present invention relates to a work shooter in a punch press. More specifically, the present invention relates to a work shooter having a roller and a free bearing on the upper surface.

(Prior Art) Conventionally, in a punch press for punching a plate material,
For the purpose of automatically transferring the stamped and finished base material or product from the work table to another, such as a belt conveyor, one or all of the work table is configured as a work shooter that can be tilted downward. Therefore, the base material or the product on the work shooter is slid down. However, because the receiving device such as the above-mentioned belt conveyor has a dimensional limitation, it is not possible to receive a large-sized plate material, so a fixed-sized plate material including a plurality of products connected to the base material at the micro joint part, After being cut appropriately by a nibbling tool provided in the turret punch press, the work shooter is used to perform a sliding process. Since the upper surface of the work shooter is provided with a large number of free bearings for the purpose of smoothly positioning and moving the plate material together with the work table, as described above, even when the work shooter is inclined and the member is slid down smoothly, Is to come down while contacting the top of the free bearing.

(Problems to be solved by the invention) However, there are many punched members that have been punched, and if these punched parts get caught on the protrusions of the free bearing, slipping is hindered. Not
In some cases, the horizontal recovery of the work shooter was also hindered. However, in order to deal with this problem, limiting the protruding height of the free bearing reduces the height difference between the top plate of the work shooter and the top of the free bearing,
This is inconvenient because it is necessary to reduce the thickness of the gripping claws of the moving positioning device that grips the plate material in accordance with the decrease in the height difference, while lowering the support height of the free bearing when the work shooter is tilted. The result is that the lubricating oil adheres the plate material to the top plate of the work shooter and prevents the plate material from slipping off.

(Means for Solving the Problems) In view of the conventional problems as described above, the present invention is provided with an upper surface plate whose upper surface and the upper surface of a table supporting a plate material in a punch press are substantially the same height, and is provided so as to be tiltable. In the work shooter of the punch press, when the work shooter is tilted, a plate member support member that supports the plate member slightly apart from the upper surface of the upper plate and allows the plate member to slide downward in the tilt is provided on the upper surface. A plurality of free bearings that are provided slightly higher than the upper surface of the plate and that horizontally support the plate material at a position above the plate material support member when the work shooter is in a horizontal state,
The work is provided with a vertical movement device that is vertically movable with respect to the upper plate and that lowers the tops of the plurality of free bearings to a height position of the top of the plate support member or less when the work shooter is tilted. It is a configuration prepared for shooter.

(Operation) With the above configuration, when the work shooter is inclined and the plate material on the work shooter is slid down, the plate material on the work shooter is supported by the plate material supporting member by lowering the plurality of free bearings by the operation of the vertical movement operation device. Therefore, the plate material does not come into close contact with the upper surface of the top plate, and even when the plate material is perforated, it does not catch on the plate material support member, free bearing, etc. It is possible to smoothly slide down.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

The punch press 1 shown in FIGS. 8 and 9 is composed of side frames 5, 7 and an upper frame 9 provided on both sides of a base 3 and a base 3.

The punch press 1 is provided with upper and lower turrets 11 and 13 that rotate in synchronization with each other. A plurality of punches 15 and dies 17 having different shapes and sizes are provided corresponding to the individual turrets. A ram 19 that presses 17 is installed in the center of the upper frame 9 so as to be vertically movable.

The turrets 11 and 13 may be equipped with various punching dies and a nibbling tool for cutting or slotting a plate material. In the apparatus of this embodiment, a plate material pressing device 21 is further provided outside the turrets 11 and 13.

In order to explain this embodiment, hereinafter, the direction corresponding to the left side in FIG. 8 is defined as “front”, the direction corresponding to the right side is defined as “rear”, and the right side in FIG. 9 is “right”.
And the left side is defined as "left".

This punch press 1 is capable of automatic operation and automatically positions the plate material W to obtain the required punch 15 and die 17.
Punching is performed by
Although not shown, it is equipped with the necessary automatic control device.

In order to automatically position the plate material W according to a program, the punch press 1 is supported by a first carriage 25 movable in the front-rear direction and on the first carriage 25 in the left-right direction (see the drawing in FIG. 8). There is a second carriage 27 that is movable in the vertical direction, and the second carriage 27 is a plate material W.
A plurality of clamp devices 29 are provided for holding one end edge of the.

The first carriage 25 travels on a rail 31 fixed to the side portion of the base 3, and cooperates with the second carriage 27 to make the plate material W.
Is positioned at a desired position with respect to the upper and lower turrets 11 and 13.

Further, as shown in FIG. 1, there is a work table extending from the lower turret 13 toward the rear of the punch press 1 on the base 3 to support the plate material W, and a part of the front of the work table is provided. The work shooter 33 can be tilted downward, and the fixed table 35 is at the rear. As shown in FIG. 9, a movable table that runs integrally with the first carriage 25 is provided on both left and right sides of the work shooter 33 and the fixed table 35.
37 are provided.

An appropriate number of free bearings 39 are provided on the upper surfaces of the fixed table 35, the movable table 37 and the work shooter 33, respectively.
Is provided so that the plate material W can travel smoothly.

The work shooter 33 is as shown in FIG.
It is composed of an upper surface plate 41 and a plate support frame 43, and one side of the plate support frame 43 is pivotally attached to a pin 45 provided on one side of the base 3 and tilted downward by a fluid pressure driven piston cylinder device 47. This is a possible configuration. A conveyor 49 is provided below the work shooter 33.

The free bearings 39 arranged on the fixed table 35 and the work shooter 33 prevent the interference of the gripping claws of the clamp device 29 with the respective top plate 5.
It is attached to and retractable from 1,41. That is,
The mounting method of the free bearing 39 on the fixed table 35 is as shown in FIG.
One group of free bearings 39 (5
4) are arranged and fixed to the bearing support bar 53 as shown in FIG. 4, but the bearing support bar 53 is connected to the base frame 59 through guide rods 55 and springs 57 on both sides. It is kept biased upward.

Further, the free bearing support bar 53 has cam followers 61 at both ends thereof, and the cam follower 61 pushes down the free bearing support bar 53 by abutting the cam 63 attached to the lower portion of the first carriage 25. Is what you do.

That is, when the cam 63 moving forward and backward together with the first carriage 25 comes into contact with the cam follower 61, the second carriage
The gripping claw that holds the material of the clamp device 29 provided on the 27 is located above the free bearing support bar 53, while the free bearing support bar 53 and the free bearings arranged thereon are provided. Since the group of 39 is pushed downward by the action of the cam follower 61, the top of the free bearing 39 protruding on the upper surface plate 51 of the fixed table 35 is depressed, and the grasping claw of the clamp device 29 is not changed. You will be able to move left and right freely without interference.

When the first carriage 25 further advances forward and the gripping claw reaches the next row of free bearings 39, this row of free bearings 39 is depressed as described above, and then the first carriage 25 is moved to the work shooter 33. Similarly, each row of the free bearings 39 repeatedly appears and disappears with the progress of the first carriage 25 even when the position reaches the position, thereby avoiding interference with the gripping claws of the clamp device 29.

Furthermore, a free bearing arranged on the work shooter 33
As shown in FIG. 5, each of the free bearing support bars 65 supported by 39 has a structure capable of moving up and down freely with respect to the upper plate 41 by an up-and-down actuator 67 composed of a fluid pressure cylinder, for example. The vertical actuator 67 releases the pneumatic or hydraulic circuit when the work shooter 33 is kept horizontal, so that the above-mentioned cam 63 lowers the free bearing support bar 65 by the action of the cam follower 61. It does not prevent the upward biasing of the spring 57.

On the other hand, as shown in FIG. 1, a proper number of rollers 69 (see FIG. 6) are arranged in line on the upper surface plate 41 of the work shooter 33. The roller 69 serves as a plate material support member that supports the plate material W slightly apart from the upper surface of the upper surface plate 41 when the work shooter 33 is tilted, and allows the plate material W to slide downward in the tilt direction. The top of the roller 69 slightly protrudes from the upper surface of the upper plate 41, but the top is lower than the upper limit height of the vertically movable free bearing 39 described above and is substantially equal to the lower limit height. It is provided in.

In the above-mentioned device, the dimension of the plate material W is long in the left and right,
When the plate material W cannot be transferred to the required processing position only by moving the carriage 27, the plate material holding device 21 is used to change the holding position of the second carriage 27 with respect to the plate material W, and then the plate material W is moved. Positioning is performed.

In the above structure, when the plate material W shown in FIG. 7 is processed, the plate material W is first gripped by the clamp device 29,
The first carriage 25 and the second carriage 27 are moved according to a program, and the turrets 11 and 13 are successively swung to perform processing with a required punch tool. At this time, the first
Since the free bearing 39 is sequentially projected and retracted as the carriage 25 moves forward and backward, the gripping claws of the clamp device 29 can travel to the left and right without being interfered with.

Therefore, when processing a plate material W from which a plurality of products P as shown in FIG. 7 are to be cut, all the processing points A and B are punched first and then the plate material pressing device 21 which also serves as a nibbling tool is used. Start cutting from C point, D point, E
One piece of product P is separated by nibbling toward a point. At this point, most of the product P is placed on the work shooter 33.

Here, when each free bearing 39 on the work shooter 33 is lowered by the up-and-down actuator 67, the product P descends and comes into contact with the top of the roller 69, and the piston / cylinder 47 operates on the top plate of the work shooter 33. Even if the work shooter 33 is tilted, there is no risk that each part of the product P is caught by the free bearing 39, and the product P slides down toward the conveyor 49 while rotating the roller 69. Next work shooter
33 is raised to be returned to the horizontal position, and then nibbling is started from the point D and machining is performed toward the points F and G.

As can be understood from the above description, when the product subjected to perforation is slid down due to the inclination of the work shooter 33, the free bearing protruding on the plate 41 is immersed in the upper surface of the work shooter 33. Therefore, the holed part does not contact the top of the free bearing 39,
Moreover, the roller uniformly guides the product in a predetermined sliding direction.

In the above-mentioned embodiment, the free bearing 39 and the free bearing support bar 65 arranged on the work shooter 33 are structured to move toward and away from the support frame 43 that fixes the upper plate 41, but instead support the upper plate 41 and the support frame 43. Similar effects can be obtained even when the frame 43 is moved toward and away from each other by an up-and-down actuator such as an air cylinder, and as a result, the upper surface plate 41 on which the roller 69 is disposed rises with respect to the free bearing 39.

[Effects of the Invention] As will be understood from the above description of the embodiments, the present invention is, in short, the upper surface of the table (4) which has substantially the same height as the table upper surface for supporting the plate material in the punch press.
In a work press of a punch press equipped with 1) and capable of tilting, when the work shooter is tilted,
A plate material support member that supports the plate material in a state of being slightly separated from the upper surface of the upper surface plate (41) and allows the plate material to slide downward in the inclined direction is provided slightly higher than the upper surface of the upper surface plate (41), A plurality of free bearings (39) for horizontally movably supporting the plate material at a position above the plate material supporting member when the work shooter is in a horizontal state are provided so as to be vertically movable with respect to the upper surface plate (41), When the work shooter is tilted, the work shooter is provided with an up-and-down actuating device (67) for lowering the tops of the plurality of free bearings (39) below the height position of the top of the plate supporting member. is there.

As is apparent from the above configuration, in the present invention, the upper surface of the upper surface plate 41 of the work shooter is supported on the upper surface of the upper surface plate 41 with the plate material slightly separated from the upper surface of the upper surface plate 41 when the work shooter is tilted. There is provided a plate material supporting member that allows the plate material to slide down to the upper surface, and a plurality of free bearings 39 that support the plate material horizontally at a position above the plate material supporting member when the work shooter is in a horizontal state are provided on the upper surface. It is provided so as to be vertically movable with respect to the plate 41.

The work shooter is provided with an up-and-down actuating device 67 for lowering the tops of the plurality of free bearings 39 below the tops of the plate support members when the work shooter is tilted.

Therefore, when the work shooter is tilted to allow the plate material on the work shooter to slide off, the plate material on the work shooter is supported by the plate material supporting member by lowering the plurality of free bearings 39 by the operation of the up-and-down actuator 67. It does not come into close contact with the upper surface of the upper surface plate 41, and even when holes are formed in the plate material, it does not catch on the plate material support member, free bearing, etc. Can be carried out smoothly.

[Brief description of drawings]

FIG. 1 is a plan view showing a work table which is an embodiment of the present invention. FIG. 2 is a front view of FIG. FIG. 3 is a side view of FIG. FIG. 4 is a sectional view taken along the line IV-IV in FIG. FIG. 5 is a partial detailed view of FIG. FIG. 6 is a sectional view of the roller. FIG. 7 is a diagram for explaining the present invention. FIG. 8 is a front view of the punch press. FIG. 9 is a plan view of the punch press. 1 ... Punch press 33 ... Work shooter 39 ... Free bearing 67 ... Vertical actuator 69 ... Roller

Claims (1)

[Scope of utility model registration request] 1. A work shooter of a punch press, which is provided with an upper plate (41) having an upper surface and an upper surface which are substantially at the same height for supporting a plate material in the punch press and is tiltable, when the work shooter is tilted. A plate material support member that supports the plate material in a state of being slightly separated from the upper surface of the upper surface plate (41) and allows the plate material to slide downward in the inclined direction is provided slightly higher than the upper surface of the upper surface plate (41), A plurality of free bearings (39) for horizontally movably supporting the plate material at a position above the plate material supporting member when the work shooter is in a horizontal state are provided so as to be vertically movable with respect to the upper surface plate (41), When the work shooter is tilted, the plurality of free bearings (3
A work shooter for a punch press, characterized in that the work shooter is provided with a vertical actuating device (67) for lowering the top of (9) below the height of the top of the plate member.