JPH0225798Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a board material carrying device, and more specifically, a board material suction member and a board material pressing member are provided on the elevating body, and when the board material adsorption member adsorbs the board material and ascends, the board material pressing member This invention relates to a plate material carrying-out device that is equipped with a mechanism that continues to press the plate material onto the surface on which the plate material is placed.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a plan view of a plate material carrying-out device 3 attached to, for example, the tip end 1 of an arm of a robot as a plate material carrying-out device. The part shown in a large H shape in the figure is the elevating body 5, and the first arm 7 in the left-right direction according to the front-back, left-right direction definitions shown in FIG. It is composed of three arms, the one on the right being named the third arm 11.

In this embodiment, the first arm 7 is a square bar fixed to the robot tip 1 via an arm bracket 13 by suitable means such as welding, and is connected to a connecting part 15 provided intermediately between the second and third arms. According to the first
It is also possible to change the straight state shown in the figure to a bent state.

Both the second arm 9 and the third arm 11 are made into square tube shapes, and each arm bracket 1
7, 19, and the arm brackets 17, 19 are fixed to the ends of the first arm 7 by knobs 21, 23.

As is clear from FIG. 3, near the front and rear ends of the second arm 9 and the third arm 11, elongated holes 27 in the front and back direction reinforced with backing metals 25 are provided. Four suction bases 29 are mounted on the lever 31 so that their positions can be adjusted and fixed in the front and rear directions.

The adsorption base 29 has a shaft rod 3 penetrating almost the center thereof.
3 is provided to be movable up and down, and at the lower end there is a vacuum cup 35 made of an airtight elastic material such as rubber, as an example of a suction tool for suctioning the plate material.
A flexible pipe 39 is connected to an electromagnetic switching valve 37 for switching between a negative pressure source and atmospheric pressure.

The shaft rod 33 is provided with a spring washer 41 at the connection part of the vacuum pack 35, and the spring washer 41 and the suction base 29
A compressed bullet 43 is fitted between the lower end surface of the shaft 33, and a double lock nut 45 is provided at the portion where the upper end of the shaft rod 33 protrudes through the suction base 29. The lowering end of the vacuum cup 35 due to the biasing force is adjustable.

Furthermore, the shaft 33 has a stepped portion 47 that is clearly visible in FIG.
is provided and engages with this stepped portion 47 to rotate the shaft rod 3.
A ratchet pawl 49 for regulating the downward movement of the suction base 29 is provided horizontally from the inside in the left-right direction above the suction base 29.

The ratchet pawl 49 is provided at the tip of the piston rod 53 of the fluid pressure cylinder 51, which constitutes a descending action regulating device for regulating the descending action of the shaft rod 33, as described above. The ratchet pawl 49 engages with the stepped portion 47 to perform a locking action when the shaft 33 is raised, thereby regulating the lowering operation. and,
The lock is released by fluid pressure from the fluid pressure piping 57.

A vertically extending cylinder 61 is provided on the outer side of the four adsorption bases 29 in the longitudinal direction via a T-shaped bracket 59, and this cylinder 61 has a shaft rod 65 provided with a plate material pressing member 63 at the lower end that extends vertically. It is movable.

A bullet 67 is compressed and fitted between the upper part of the plate pressing member 63 and the lower end surface of the cylinder 61.
A double lock nut 69 for regulating the lower limit of the plate material pressing member 63 is provided at the portion where the plate material pressing member 63 passes through the cylinder 61.

When the plate material 71 is normally carried out using the apparatus of this embodiment configured as described above, the plate material pressing member 63
Adjusting the double lock nut 69 that sets the lowering limit of the lift body 5, the vacuum cup 35 comes into contact with the plate 71, and continues to descend until the step 47 provided on the shaft 33 of the vacuum cup 35 is lowered. Even when the plate material pressing member 63 is engaged with the ratchet pawl 49, the plate material pressing member 63
It does not require any particular explanation that if the vertical position of the plate material pressing member 63 is adjusted in advance so that it does not come into contact with the upper surface of the plate material 71, it can be used as it is as a general plate material carrying device.

In this embodiment, a blank part 73, which is a product obtained by punching a plate, is kept connected to the surrounding part (generally referred to as a skeleton 75) through an extremely thin connection part, and then the connection part is broken. This means that the device is very effective when separating only the product part from the skeleton 75 and transporting it to the next process.

The operation will be explained according to FIG.

As shown in 1 to 4 in FIG. 4, before the elevating body 5 approaches the plate 71, the double lock nuts 45 and 69 are adjusted so that the free lower limit positions of the plate pressing member 63 and the vacuum cup 35 are adjusted. The former occupies a higher position than the latter (1 in Fig. 4) and is vacuum-cupped at the stage of compressing the three bullets 67 and 43 and pressing them against the surface of the plate 71 (2 in Fig. 4). After the stepped portion 47 provided on the shaft 33 of 35 is locked with the ratchet pawl 49 and the suction is completed by introducing negative pressure to the vacuum cup 35 by switching the electromagnetic switching valve 37, the elevating body 5 is raised. Then, only the blank portion 73 of the plate material 71 is attracted and raised, and the skeleton 75 is subsequently pressed against the mounting surface of the plate material and lands on the surface (3 in Fig. 4), after which the blank portion 73 is lifted up. After being separated from the skeleton 75 (4 in FIG. 4), the blank portion 73
The robot tip 1 is appropriately driven to transport only the robot to the next process.

When the blank part 73 has been carried out to the next process position, the electromagnetic switching valve 37 is activated to connect the inside of the vacuum cup 35 to atmospheric pressure to release the blank part 73 from adsorption, and the blank part 73 remains in the board mounting area. The skeleton 75 is ejected to a scrap chute using, for example, an electric pusher.

As can be understood from the above description of the embodiments, the present invention is, in short, a conveying device that attracts and transfers plate materials, and a first shaft rod that is vertically movably supported by an elevating body in the conveying device. A plate pressing portion is provided at the lower end and the first shaft is biased downward, and a second shaft is supported adjacent to the first shaft and movably up and down on the elevating body. A suction tool capable of adsorbing the plate material is provided at the lower end, and a second shaft is biased downward, so that the lower end of the second shaft is lower than the lower end of the first shaft. The lower end of the second shaft is provided so as to be able to rise upward relative to the lower end of the first shaft, and the lower end of the second shaft can be freely regulated. An operation restriction device is provided on the elevating body, and the lower end of the first shaft is moved to a position above the suction device when the second shaft is in a state where its descent is restricted by the descending operation restriction device. It is provided so that its position can be adjusted freely.

With the above configuration, in the present invention, when the second shaft is located at a position where its descent is regulated by the descending operation restriction device, the suction tool at the lower end of the second shaft is more attractive than the suction tool at the lower end of the second shaft. By adjusting the lower end of the shaft rod upward in advance and positioning it so that the lower end of the first shaft rod does not come into contact with the plate material, a suction tool provided at the lower end of the second shaft rod is installed. It is possible to adsorb and transport plate materials. That is, it can be used as a general plate material carrying-out device.

Further, after the blank is suctioned by the suction tool, the lowering operation of the second shaft is controlled by the lowering operation regulating device so that the lower end of the second shaft does not fall lower than the lower end of the first shaft. By regulating the
As explained using the figures, the blank can be sucked with the suction tool, the skeleton can be pushed down with the first shaft rod, and the blank and the skeleton can be separated and transported.

In other words, according to the present invention, the suction tool can be used for a general sheet material unloading device that simply suctions and conveys a sheet material, and for a case where a blank and a skeleton are separated and suctioned and conveyed.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the device according to the present invention, Fig. 2 is a front view of the same as above, Fig. 3 is a cross-sectional view along the - arrow direction of Fig. 1, and Fig. 4 is an operation explanatory diagram. be. 3...Plate material carrying device, 5...Elevating body, 33...
Shaft rod, 35... Vacuum cup, 47... Step part, 49
... Ratchet claw, 63 ... Plate material pressing member, 63
...Shaft rod, 73...Blank part, 75...Skeleton.

Claims (1)

[Scope of utility model registration request] The conveyor device is configured to suck and transfer a plate material, and a plate material pressing portion 63 is provided at the lower end of a first shaft rod 65 which is vertically movably supported by an elevating body 5 in the transport device. A suction tool 35 capable of adsorbing a plate material is attached to the lower end of a second shaft rod 33 which is biased downward and is vertically movably supported by the elevating body 5 adjacent to the first shaft rod 65. and the second shaft 33 is provided so as to be biased downward, and the lower end of the second shaft 33 is provided so as to protrude downward from the lower end of the first shaft 65. A lower end of the second shaft 33 is provided so as to be able to rise upward relative to the lower end of the first shaft 65, and a descending operation regulating device 51 is provided that can freely regulate the descending operation of the second shaft 33. The lower end of the first shaft rod 65 is provided on the elevating body 5 and is moved to a position above the suction device when the second shaft rod 33 is in a state where its descent is restricted by the descending operation regulating device. A plate material carrying-out device characterized by being provided in a position that can be freely adjusted.