JPH018280Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an inter-station tilting transfer device that can change the inclination of a workpiece when the workpiece is transferred between stations.

[Prior art] For example, a workpiece 1 as schematically shown in FIG.
In the processing line, from the first station S1 to the sixth station S6, the workpiece 1 is
The workpiece 1 is held at a tilted position A and processed from that tilted direction, while the seventh station S7 to the eleventh station S11 hold the workpiece 1 at a second tilted position B opposite to the first tilted direction. , it may be necessary to perform machining from a second direction that is completely different from the machining direction at the previous station.

Conventionally, in such cases, for example, the sixth
The station S6 is used as a station for changing the inclination of the workpiece 1. This station is equipped with a tilting device for the workpiece 1, and the inclination of the workpiece 1 is changed and then transferred to the next processing station S7. The tilting device and the conveying device are provided separately. For this reason,
This not only increases the length of the processing line, but also increases the cost of equipment for the processing line and makes it structurally more complex.

Furthermore, as disclosed in, for example, Japanese Utility Model Application Publication No. 59-24250, there is a device in which the tilting and conveyance of the workpiece are performed by a common mechanism utilizing the movement of a conveyance rod.

However, since the moving direction of the transport rod and the tilting direction of the workpiece are different in this method, there is a problem that the mechanism for tilting the workpiece in conjunction with the movement of the transport rod becomes complicated and large. Generally, when a workpiece is tilted by the tilting mechanism, it is necessary to return the tilting mechanism to the initial state in preparation for the tilting of the next workpiece, but this return mechanism also becomes complicated. It is inevitable that the size will increase.

[Purpose of the invention] The purpose of the invention is to provide a tilting conveyance device between stations in which workpiece conveyance and tilting of the workpiece can be performed by a common mechanism without complicating or increasing the size of the tilting and return mechanism. It is to be.

[Structure of the invention] Therefore, in the present invention, there is provided a transport rod that is provided between the stations and is supported so as to be movable forward and backward in the axial direction and rotatable around the axis; The engaging claw engages with the end face of the workpiece from the axial direction, and the workpiece is held by allowing movement of the transport rod in the axial direction, and can rotate around the axis of the transport rod while holding the workpiece. A workpiece holding member is provided between the transport rod and the workpiece holding member, and the workpiece holding member is rotated in conjunction with the rotation of the transport rod, and the workpiece is transferred to the first workpiece through the workpiece holding member. A tilting means for tilting from one position to a second position, a tilting portion formed on the transport rod, and a workpiece holding member are provided, and the workpiece tilted to the second position by the tilting means is tilted to the axis of the transport rod. During an additional stroke in the axial direction of the transport rod after passing through the workpiece holding member during the stroke in the direction, the tip engages with the diagonal portion and cooperates with the diagonal portion to remove the workpiece holding member. The device is characterized by comprising a return movement means having an engagement member that causes the return movement from the second position to the first position.

[Effects of the invention] According to the invention, by utilizing the axial displacement and rotation around the axis of the transport rod, it is possible to transport and reverse the workpiece, as well as to reverse and return the workpiece holding member. There is no need for a tilting device, and there is no need to open one station for tilting, making it mechanically simple.

[Example] Hereinafter, embodiments of the present invention will be described in detail.

As shown in Fig. 1, at a predetermined station, that is, at subsequent stations, the workpiece W is machined at different inclination positions.
In the SS, a pair of circular holding disks 1 and 2 are coaxial with each other and arranged parallel to each other in a vertical plane at a predetermined distance in the axial direction. A transport rod 3 for transporting and tilting the W is coaxial with the holding disks 1 and 2 and extends in the horizontal direction, and is provided so as to be rotatable about an axis (not specifically shown).

As shown in FIG. 2 regarding the holding disk 2 on the right side of FIG.
Passage openings 1a and 2a for allowing the transport rod 3 to pass through are provided. Furthermore, a pair of upper and lower holding bars 4, 4, 5, and 5 are bridged between the pair of holding disks 1 and 2 so as to contact the upper and lower parts of each side surface of the workpiece W, respectively. Among the support members 6, ..., 6 that support each end of each holding bar to the holding disks 1, 2, the support member 6 corresponding to one lower part of the workpiece W has a shoulder that supports the corner of the workpiece W. 6a is provided, holding bars 4, 4,
5, 5 and shoulders 6a, 6a, the workpiece W is supported between the holding disks 1, 2 so as to be movable only in the axial direction.

Furthermore, each of the holding disks 1 and 2 is supported by rolling rollers 7, .

On the other hand, the transport rod 3 includes holding disks 1 and 2.
a reversing lever 8 as a tilting means for changing the inclination of the workpiece W by rotating the lever, and a pair of reversing levers that engage with the axial end surface of the workpiece W and transport the workpiece W in the axial direction by the axial feed of the transport rod 3. transport hook 9,
9 is installed so that its position can be adjusted.

The reversing lever 8 has a protrusion 1 as a tilting means protruding inside the holding disk 2 on the right side of FIG.
When the conveying rod 3 is rotated counterclockwise in FIG. 2, the reversing lever 8 moves the protrusion 10 from the first position A1 to the second position A2.
This will release the holding discs 1 and 2.
Rotate the whole thing. Therefore, the workpiece W held by the holding disks 1 and 2 is also reversed from the first tilting position B1 to the second tilting position B2. As shown in FIG. 2, an arcuate groove 11 provided on the outer surface of the holding disk 2, in combination with a guide roller 12 that fits into this groove 11, regulates the rotation range of the holding disk 2. It constitutes a rotation regulating means. Further, as clearly shown in FIG. 1, a positioning cylinder 13 is horizontally installed on the base frame between the holding disks 1 and 2, and a tapered hole 1 provided in advance in the holding disk 2 is installed.
4, the tip tapered part 13b of the piston rod 13a
By fitting the holding disks 1 and 2, the positioning of the holding disks 1 and 2 (the first and second tilting positions B1, B1 of the workpiece W,
Corresponds to B2. ).

The workpiece W at the second tilting position B2 is conveyed in the axial direction between the transport rod 3 and the holding disk 1 on the left side in FIG.
When the workpiece W passes through the opening 1a and reaches the position C, the holding disks 1 and 2 are moved to the first tilting position B of the workpiece W.
A mechanism for returning to the position corresponding to 1 is provided. This return mechanism consists of a slide groove 15 provided along the axial direction of the transport rod 3 and a holding disk 1.
The guide pin 17 is supported by a reversing and returning cylinder 16 as an engaging member that is attached upwardly inside the slide groove 15, and a guide pin 17 is supported by the slide groove 15 so as to be able to be freely fitted into and removed from the slide groove 15.

A developed plan view of the slide groove 15 is shown in FIG. As is clear from FIG. 3, the slide groove 15
The grooves 15a and 15b in the axial direction are connected to the oblique portion 15c.
It has a structure in which it is connected in series. When the transport rod 3 is sent in the axial direction with the guide pin 17 fitted in the slide groove 15, the guide pin 17 slides along the axial groove 15a, and the skewed part 15
At point c, while rotating the conveying rod 3 around its axis, it reaches another axial groove 15b. The axial grooves 15a and 15b are located at the second tilting position B of the workpiece W, respectively, as shown by arrows in FIG.
2. It is set to have a phase corresponding to the first tilting position B1, and the starting position of the oblique portion 15c is set so that the workpiece W is at the opening 1a of the holding disk 1, as described above.
It is set in correspondence with the position C (see Fig. 1) where it has finished passing through. With this setting, the holding disks 1 and 2 are automatically returned to the first tilting position B1 of the workpiece W at the timing when the transport rod 3 carries out the workpiece W to the next station, and the next workpiece is carried in at that position. will be able to wait.

In addition, as shown in FIG. 3, the second tilting position B2
Positioning is performed by the positioning cylinder 13 at each of the first tilting position B1 and the first tilting position B1, and the piston rod 13a is pulled out from the tapered hole 14 for positioning during the conveyance, especially just before the guide pin 17 reaches the diagonal portion 15c. It's been taken off.

In addition, numeral 18 in FIG. 2 is a joining rod that is horizontally suspended between the holding disks 1 and 2 and joins both the holding disks 1 and 2 together.

The operation of the above configuration will be explained.

In the above-mentioned specific station SS, the workpiece W is held by the holding disks 1 and 2 positioned by the positioning cylinder 13 at a first tilting position B1 shown by a solid line in FIG.

Next, the positioning cylinder 13 is once retreated, the transport rod 3 is rotated by a predetermined angle, and the reversing lever 8 pushes the stopper 10 of the holding disk 2 to push the stopper 10 from the first position A1 to the second position A2. The holding disks 1, 2 are rotated, and as a result, the workpiece W is in the first tilted position B.
1 to the second tilted position B2. Accurate positioning at this second tilting position B2 is performed by the positioning cylinder 13.

Then, the transport rod 3 is moved forward in the axial direction. When tilted to the second tilted position B2, the transport hooks 9, 9 are rotated with the rotation of the transport rod 3 so as to engage with the front and rear end surfaces of the workpiece W. Therefore, when the transport rod 3 is transported in the axial direction, the workpiece W is also transported in the axial direction, and the workpiece W is sent out from the opening 1a of the holding disk 1 to the next station.
Note that during this feeding, the guide pin 17 is fitted into the slide groove 15.

As described above, when the workpiece W has finished passing through the opening 1a of the holding disk 1, that is, when the workpiece W has reached the C position, the guide pin 17 engages with the diagonal portion 15c of the slide groove 15. As a result, the holding disks 1 and 2 are returned from the second tilted position B2 of the workpiece W to the first tilted position B1. After returning, the holding disks 1 and 2 are again accurately positioned at the first tilted position B1 by the positioning cylinder 13 in preparation for loading the next workpiece.

As described above, according to the above configuration, the conveyance and tilting of the workpiece can be carried out by a common and simple mechanism, and furthermore, after the workpiece is sent in the tilted state, the workpiece holding member is automatically moved. It can be returned to the carrying position, improving work efficiency.

[Brief explanation of the drawing]

Fig. 1 is an explanatory cross-sectional view of the main part of the tilting conveyance device according to the embodiment of the present invention, Fig. 2 is an explanatory cross-sectional view in the - line direction of Fig. 1, and Fig. 3 is a developed plan view of the slide groove and the piston rod. FIG. 4 is a schematic plan view of the processing line.

Claims (1)

[Scope of utility model registration request] A transport rod that is provided across the stations and is supported so as to be able to move forward and backward in the axial direction and to rotate around the axis, and an engagement that is attached to the transport rod and engages with the end surface of the workpiece from the above-mentioned axial direction. A claw, a workpiece holding member that holds the workpiece by allowing movement of the transport rod in the axial direction, and is supported rotatably around the axis of the transport rod while holding the workpiece, and the transport rod and the workpiece. a tilting means provided between the workpiece holding member and the workpiece holding member for rotating the workpiece holding member in conjunction with the rotation of the transport rod and tilting the workpiece from the first position to the second position via the workpiece holding member; After the workpiece tilted to the second position by the tilting means, which is provided on the workpiece holding member and the inclined portion formed on the transfer rod, has passed through the workpiece holding member due to the axial stroke of the transfer rod. During the additional stroke in the axial direction of the transport rod, the tip engages with the slanted section and moves the workpiece holding member back from the second position to the first position in cooperation with the slanted section. What is claimed is: 1. A tilting conveyance device between stations, comprising: a reciprocating means having an engaging member for causing the station to move.