JPH0337800Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a reversing device for reversing an intermediate product in a press processing line or the like, and can be used as a reversing device for various articles.

[Background technology and its problems]

Conventionally, in a transfer press processing line, there are cases where a product in the middle of processing is inverted and transported to the next process due to the necessity of mold manufacturing, etc., and in such cases, an inverting device has been used.

By the way, conventional reversing devices require close proximity to each other,
A pair of object support members that are movable apart and capable of supporting an object to be inverted, a proximity/separation drive mechanism that drives the object support members toward and away from each other, and the object support members are Some devices are equipped with a reversal drive mechanism that performs reversal driving around a reversal axis.
However, in this reversing device, the proximity and separation drive mechanisms are equipped with cylinders, etc., and air piping and electrical wiring are arranged around the reversing shaft to drive the cylinders, so the area around the reversing shaft becomes cluttered. When the support member to be reversed is reversed about the reversal axis, there is a problem in that these piping and wiring become complicated and get in the way.

[Purpose of invention]

An object of the present invention is to provide a reversing device that is compact around the reversing axis of the device and that piping, wiring, etc. do not get in the way when reversing an object support member about the reversing axis.

[Means and actions for solving problems]

The present invention is characterized in that wiring and piping are arranged inside the reversing shaft of the reversing drive mechanism.

That is, the present invention provides a pair of object support members that are movable toward and away from each other and capable of supporting an object to be inverted; In a reversing device provided with a reversing drive mechanism that is provided with a separation drive mechanism and drives the object supporting member to be reversed around an inversion shaft, a cylinder or the like is provided inside the reversal shaft to operate the proximity and separation drive mechanism. This is to form a hole for installing necessary wiring and piping.

As a result, the present invention attempts to achieve the above object by eliminating wiring, etc. from around the reversing axis, and by preventing wiring, etc. from becoming tangled when the object support member to be reversed is reversed around the reversing axis. It is something.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings.

In Figures 1 and 2 showing the overall configuration,
A pair of rods 22 of a vertically movable member 21 are provided on a support frame 11 having an L-shaped side surface via a pair of brackets 12 so as to be vertically movable.
A piston type shock absorber 24 is fixed between the lower ends of these rods 22. A vertically movable air cylinder 41 as a vertical drive source is attached to the upper part of the support frame 11, and the tip of a piston rod 42 of this cylinder 41 is connected to the vertically movable member 21. As a result, by driving the cylinder 41, the vertically moving member 21
It is designed to be able to move up and down. Here, the vertically moving member 21 supported by the support frame 11 and the vertically moving air cylinder 41 constitute a vertically driving mechanism 20.

Brackets 45 are erected on the front and rear (left and right sides in FIG. 1) of the upper surface of the vertically movable member 21, and two guide rods 46 spanned between these brackets 45 have guide rods 46 positioned above the rods 46. A pair of bearing brackets 48 fixed to the lower surface of the slide member 47 are slidably supported. A piston rod 5 of a horizontally moving air cylinder 51 as a horizontal drive source fixed to the vertically moving member 21 is attached to one bearing bracket 48 of this slide member 47.
2 are connected to each other, and as the cylinder 51 is driven, the slide member 47 is moved horizontally, in the left-right direction in FIG. Here, the slide member 47 and the horizontally moving air cylinder 51 constitute a horizontal drive mechanism 50.

An air motor 55 as a reversing drive source is provided on the slide member 47, and an output shaft 56 of this motor 55 is connected to a reversing shaft 61. This reversing shaft 61 is connected to a bearing block 62 attached to the slide member 47. It is rotatably supported. This reversal axis 61 is, as shown enlarged in FIG.
A notch groove 61A is formed on the air motor side, and a wiring hole 101 is formed straight in the shaft center from one end of the notch groove 61A to the other end of the reversing shaft. 102
is inserted.

Around the wiring hole 101, there are two wires of different lengths in parallel, a total of four wires (see FIG. 5).
Wiring holes 103 and 104 are formed (one each is shown in FIG. 3), and one end 103A of each of these two piping holes 103 and 104 on the air motor side,
104A is bent from the middle and opened at different positions on the shaft peripheral portion 61B, while the other end 103B, 10
4B is opened at the other end 61C of the reversal shaft.

Moreover, one end 10 of these holes 103 and 104
Bearing block 6 located opposite 3A and 104A
Communication grooves 62A and 62B are formed on the inner peripheral surface of No. 2 over the entire circumference, and these grooves 62
Ports 105 and 106 through which compressed air as pressure fluid flows in and out are communicated with A and 62B, respectively. A pressure air source 13 is connected to these ports 105 and 106 via a 4-port 2-position switching valve 131.
2 are connected. On the other hand, the holes 103 and 104
One end of external piping 107, 108 is connected to the other ends 103B, 104B, respectively, and the other ends of the external piping 107, 108 are connected to one end side and the other end side of a pair of cylinders 80 (see FIG. 5), which will be described later. each connected. This allows the pressure air source 1
When compressed air is supplied from 32 to port 105 or 106 via switching valve 131, the pair of cylinders 80 are operated simultaneously.

A reversing arm 63 is fixed with a key to the right end of the reversing shaft 61 projecting from the bearing block 62 in the first and third figures. As shown in FIGS. 4 and 5, this reversing arm 63 includes arm portions 63A extending horizontally on both sides in the figure.
A locking protrusion 63B made of hard rubber protrudes toward the left in FIG. 1 near one tip of 3A. This locking protrusion 63B is connected to the slide member 4.
A pair of stoppers 64 (see FIG. 4) provided on both sides of the right end of FIG. Positioning is performed. In addition, both arm portions 6 of the reversing arm 63
3A are integrally formed with bearing portions 63C that protrude toward the right in FIG. 1, and within these bearing portions 63C, as shown on the left in FIG. 65 are fixed with screws, and holder guide shafts 66 are press-fitted and fixed into the bushes 65, respectively.

A connecting plate 67 is fixed between the upper and lower ends of the left and right holder guide shafts 66 in FIG. They are supported and are movable toward and away from each other. At this time, each ball bush 6
9 are movable and prevented from being removed by the finger holder 68, and a compression coil spring 7 is provided between each ball bush 69 and the nearest connecting plate 67.
0 is interposed, and each ball bushing 69 is always pressed toward the center of the guide shaft 66 to maintain a predetermined position of each ball bushing 69.

One end of an air cylinder 80 serving as an approach/separation driving mechanism is fixed to each of the connecting plates 67, and the external pipes 107, 107 are connected to one end side of each cylinder 80. The other ends of these cylinders 80 are attached to nearby finger holders 68
The external piping 10
8 and 108, and each piston rod 81 of these cylinders 80 is connected and fixed to the finger holder 68 on the other side. Thereby, when air is sealed in either port 105 or 106, both finger holders 68 can be driven toward or away from each other as the cylinder 80 is driven. At this time, in order to fix the piston rod 81 of each cylinder 80 to the finger holder 68 on the remote side, the length of the guide shaft 66 is shortened and both connecting plates 68 are fixed.
This is to shorten the dimension between 7 and make the external size smaller.

Furthermore, rubber cushions 8 are provided at positions facing each piston rod 81 on both connecting plates 67.
2 is provided so that contact between the tip of the piston rod 81 and the connecting plate 67 is damped.
Furthermore, a position detector 110 connected to the electric wirings 102, 102 is provided at both ends of the cylinder 80, and this position detector 110 detects whether a piston (not shown) in the cylinder 80 is located at either end of the cylinder. It is designed to detect whether As a result, the finger holders 68, 68
A signal is sent to a control means (not shown) via the electrical wiring 102 when the two are at the closest or most distant positions from each other, and in response to this signal, the air motor 55 and the like are driven according to the sequence. It's summery.

Each of the pair of finger holders 68 is provided with a finger mounting step 68A in the form of a flat plate, and one finger mounting plate 71 is provided for each holder 68 on the surfaces facing each other, that is, on the inner surfaces of these mounting steps 68A. is the mounting bolt 111 and mounting pin 1
It is fixed by 12. Fingers 72 are attached to these finger attachment plates 71 via elongated holes 72A, which can be attached at positions corresponding to the shape of the intermediate product to be inverted, that is, the object 113 to be inverted. As shown in an enlarged view in FIG. 6, these fingers 72 are attached with guide pins 114, cup-shaped support rubber 115, etc.
3 can be gripped reliably. Furthermore, the guide pins 114 are alternately shifted in position so as not to interfere with each other when the object 113 to be inverted is gripped.

Here, the reversing shaft 61, the reversing arm 6
3. A reversing member 75 is constituted by the holder guide shaft 66, the connecting plate 67, the ball bush 69, and the compression coil spring 70, and this reversing member 7
5 and the air motor 55 create a reversing drive mechanism 6.
0 is configured. In addition, the finger holder 6
8. The finger attachment plate 71 and the finger 72 constitute a reversible object support member 78, and the reversible object support members 78 are provided in pairs, upper and lower.

Next, the operation of this embodiment will be explained.

First, the air cylinder 80 as an approach/separation drive mechanism is driven to move the pair of finger holders 68 in a direction away from each other.
The fingers 72 attached to the holder are kept open.
In this state, press the feed bar (not shown)
The object to be inverted 11 is placed between the upper and lower fingers 72 by
3, and then operate the air cylinder 80 in the opposite direction to transfer the object 1 between the upper and lower fingers 72.
13. At this time, the object 113 to be inverted is positioned by the guide pin 114, and the receiving rubber 11
Supported by 5. After this gripping, the air motor 55 as a reversing drive source is driven to rotate the reversing shaft 61 180 degrees, and the reversing arm 63 and holder guide shaft 66 are rotated 180 degrees.
The finger holder 68 is inverted 180 degrees through the holder, etc.
As a result, the finger 72 is also reversed by 180 degrees, and the object 113 to be reversed is reversed.

At this time, even if the reversing shaft 61 is rotated, the electric wiring 102 provided in the wiring hole 101 and the external piping 107, 1 connected to the internal piping 103, 104
08 is not complicated.

Next, the air cylinder 80 is driven in the opposite direction to that described above, the finger holder 68 is separated, the finger 72 is opened, and the object 113 to be inverted is released. This object 113 to be reversed is supported by a feed bar (not shown) or the like and is carried out to the press side.

Thereafter, by repeating the above-described operations, the object to be reversed can be sequentially reversed. In addition, the air motor 55
The reversal operation is performed in the opposite direction each time.
Further, as described above, when reversing the finger 72, the angular position of the reversal is accurately determined by the locking protrusion 63B provided on the reversing arm 63 and the stopper 64 provided on the slide member 47. be.

Next, during the reversal operation of the object to be reversed, depending on the size of the presses or the height of the molds located before and after the reversal operation process, the product conveyance line before and after the reversal is moved horizontally (horizontally) or vertically (up and down). When it is necessary to change the directional position, the slide member 47 is driven in the horizontal direction by the air cylinder 51 as a horizontal drive source, or the vertically moving member 21 is driven in the vertical direction by the air cylinder 41 as a vertical drive source. We will respond accordingly.

The driving in the horizontal direction or the vertical direction may be performed before or after the reversing operation, and may be determined as appropriate depending on the situation with the press line. Further, it is not necessary to drive both the vertical drive and the horizontal drive all the time, and it is sufficient to drive them as necessary for the press line.

According to this embodiment as described above, there are the following effects.

That is, in this embodiment, the electric wiring 102 and the like are removed from around the reversing shaft 61 and provided inside the reversing shaft 61, so that the reversing device can be made compact. Furthermore, when rotating the reversing shaft 61, the electric wiring 102 and the like do not become complicated and get in the way. Therefore, it is possible to avoid inconveniences such as short circuits caused by complicated disconnection of wiring and the like. In addition, in this embodiment, the wiring hole 10
1 is formed at the axial center of the reversing shaft 61, and a piping hole 103 is formed around the wiring hole 101, so that electrical wiring 102 and air piping can be easily and reliably installed inside the reversing shaft 61. I can do it. moreover,
The reversing device is a horizontal drive mechanism 50 and a vertical drive mechanism 20.
Since the structure includes the above, it is possible to easily accommodate differences in the size of presses, etc. In addition, since the air cylinder 80 that drives the pair of finger holders 68 is provided to penetrate the holder 68 nearby and drives the holder 68 on the remote side, the reversing member 7
5. In particular, the length of the holder guide shaft 66 can be shortened,
Also from this point of view, the device can be made smaller.

In addition, in carrying out the present invention, there may be only one hole provided in the axial center, and electrical wiring and air piping may be led to this hole. According to this, the hole can be easily formed. Further, even if a plurality of holes are provided, the number is not limited to one in the shaft center and four around it as in this embodiment, but the number may be provided as necessary.

Further, the device of the present invention may not include the horizontal drive mechanism 50 and the vertical drive mechanism 20.

Further, the approach/separation drive mechanism is not limited to the air cylinder 80, but may be a cam mechanism driven by a motor. .

Furthermore, the pair of object support members 78 are not limited to those in which the upper and lower support members 78 both move as in the previous embodiment, but if there is no problem with the product conveyance line, only one of them can be moved and both the upper and lower support members 78 can be moved. They may be close to or separated from each other. Further, in the embodiment, a slide member 47 is disposed on the vertically movable member 21.
Although an example in which the reversing member 75 is provided has been described, a vertically moving member may be provided on the slide member as long as the reversing member 75 side is only driven vertically and horizontally. but,
In such a configuration, the part that moves toward the press side also includes the part of the vertically moving member, which may cause interference with the bed of the press, etc., and the degree of freedom in arranging the press line etc. is reduced. The above embodiment is more advantageous. however,
If there is no interference with a press or the like, a vertically movable member may be provided on the slide member, and the present invention includes this.

Further, although the guide pin 114 and the receiving rubber 115 are provided on the finger 72, other structures may be used as long as the object 113 to be reversed can be accurately gripped, for example, a magnetic attraction cup may be provided.

[Effect of idea]

According to the present invention as described above, the area around the reversing shaft of the reversing device becomes compact, and piping, wiring, etc. do not get in the way when reversing the object support member around the reversing shaft. .

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, in which Fig. 1 is a longitudinal sectional view showing the overall configuration, Fig. 2 is a left side view of Fig. 1 partially cut away, and Fig. 3 is the same as Fig. 1. An enlarged view of the main parts, FIG. 4 is a partially sectional plan view of the reversing mechanism, and FIG. 5 is a right side view of FIG. 4, with a partially sectional view.
FIG. 6 is an enlarged sectional view of the finger. 55... Air motor as a reversing drive source, 60
...Reversing drive mechanism, 61... Reversing shaft, 61B...
Shaft circumference, 61C... Shaft end, 72... Finger, 7
5... Reversing member, 78... Reversing object support member, 8
0...Air cylinder as proximity/separation drive mechanism, 101...Wiring hole, 102...Electrical wiring, 103,104...Piping hole, 107,1
08...External piping, 113...Object to be inverted.

Claims (1)

[Claims for Utility Model Registration] (1) A pair of object support members that are movable toward and away from each other and capable of supporting an object to be inverted, and a proximal device that drives the object support members toward and away from each other. , in a reversing device comprising a separation drive mechanism and a reversal drive mechanism that reverses and drives the object support member to be reversed about a reversal shaft, the proximity and separation drive mechanism is operated inside the reversal shaft of the reversal drive mechanism; A reversing device characterized by forming a hole for installing wiring and piping necessary for the reversing process. (2) In claim 1 of the utility model registration claim, the hole includes a wiring hole formed at the axial center of the reversing shaft, and a wiring hole formed around the wiring hole with one end extending from the shaft periphery. 1. A reversing device comprising: a piping hole having an opening at one end and a piping hole having an other end opening at a shaft end.