JPS58148031A - Transfer press - Google Patents

Abstract

PURPOSE:To enable working of a cup-shaped work by a simple structure, by converting movement of a feed bar in the direction of carrying a work into inversion movement of a finger in a transfer press. CONSTITUTION:A work W to be press worked is attached to parallel feed bars 1, 1 of a transfer press with a finger 3. The feed bars 1 move to get near and away mutually as shown by arrow A, move vertically when the work W is attached to or detached from a press die as shown by arrow B, and reciprocate by one pitch in the direction of carrying the work W as shown by arrow C. A rack 7 that engages with a gear connected to the finger 3 is installed to allow free relative movement to the feed bars 1 to move in a body when the feed bars 1 move vertically and move to get near and away, and stop when the feed bars 1 move in the direction of carrying the work. Movement of the feed bars 1 is converted to inversion movement of the finger, and the work can be inverted smoothly.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a three-dimensionally operated transfer press apparatus. In a three-dimensional operation transfer press, the fingers that grip the workpiece move in three axial directions, and the fingers can move in the transport direction of the workpiece, horizontally at right angles to this, and downward. Then, the workpieces are transferred one after another and press working is performed continuously. When processing a cup-shaped workpiece using a three-dimensional transfer press device, it may be necessary to invert the workpiece while conveying it using the fingers. Usually, the fingers are attached to a feed bar that moves in the direction of the three wheels, and conventionally, a separate power source has been required to cause the fingers to reverse motion.

An object of the present invention is to convert the movement of the feed bar in the workpiece conveyance direction into the reversal movement of the fingers, thereby making it possible to process workpieces that require reversal, such as cup-shaped workpieces, with a simple structure. That is.

Next, embodiments embodying the present invention will be described. 1 to 3 are diagrams showing an embodiment of the present invention, and as shown in FIG. 1, two feed bars 1 are provided along the conveyance direction of the workpiece W, and each feed bar 1 move toward and away from each other when the workpiece W is clamped and unclamped, as shown by arrow A, and move up and down when the workpiece W is attached to and removed from the press die, as shown by arrow B, and as shown by arrow C. It reciprocates by one pitch in the transport direction of the workpiece W.

The reciprocating movement of the feed bar 1 in the direction of arrow C is performed by driving a horizontal member 2, which is installed horizontally and perpendicular to the feed bar 1, in the direction of arrow C by a driving means (not shown). The feed bar 1 and the horizontal member 2 are connected to each other by fixing the feed bar 1 to the horizontal member 2 and a sliding member 2a that is a sliding pair.

Therefore, when the feed bar 1 is moved in the six directions of arrows, the sliding body 2a moves along with the feed bar 1 to the horizontal member 2.
slide along.

The movement of the feed bar 1 in the six directions of arrows and in the direction of arrow B is performed by a drive means (not shown) connected to a drive member 4 that slides against the feed bar 1. This driving member 4 is stopped when the feed bar 1 is moved in the direction of arrow C.

As shown in FIG. 1, the fingers 3 for gripping the workpiece W are attached to each feed bar 1 facing the phase R. Although only one phase finger 3 is shown in the figure,
A plurality of sets are attached to the feed bar 1 at predetermined pitches corresponding to the spacing between the press type phase bars installed in the transfer press.

As the feed bar 1 moves in the three-wheel direction as described above, the fingers 3 attached to the feed bar 1
is from position a to b as shown in the movement diagram in Figure 1.
The workpiece W is gripped by the approach movement A+ of the position, and the workpiece W is lifted while being gripped by the upward movement B1 from the position b to the position C, and the workpiece after one machining process is completed is removed from the press die. Then, from position C to d
By the positional feed movement C1, the workpiece W is moved by one pitch and is transported to the upper position 1 of the press mold where the next processing is to be performed. By rotating the finger 3 180 degrees in this darkness, the workpiece W is reversed.

Thereafter, the workpiece W is placed in a press mold (not shown) by a downward movement B2 from the d position to the C position, and from the C position
[The grip on the workpiece W is released by moving away from the position. Then, the finger 3 returns from the first position to the a position and moves C2. In this darkness, the finger 3 rotates 1804 times in the opposite direction to that described above, and one cycle of movement of the finger 3 is completed. As the fingers 3 perform such three-wheel motion and rotational motion, the workpiece W is sequentially conveyed one step at a time to the next press mold.

The finger 3 is reversed to a circle in which the finger 3 makes a forward movement C1 and a return movement 02. Part 2 and 3 showing details of this
This will be explained using figures. Inversion with finger 3! ! The housing body is attached to the feed bar 1 with bolts 6 at required locations at a predetermined pitch. A rack 7 is installed along and parallel to the feed bar 1 to invert the fingers 3 by moving the reversing device main body 5 in the feed direction C1 and the return direction C2 of the feed bar 1. 7 is feed bar 1 approaching and leaving movement A1
．． When the feed bar 1 moves up and down 1oB+ and B2, it moves together as one body, but when the feed bar 1 moves forward and returns CI + C2L/, the claw 7 stops. Therefore, the rack is fixed
The rack receiver 8 is slidably fitted to the feed bar 1 so that the feed bar 1 can slide thereon. Further, a roller 9 attached to the reversing device main body 5 rotates under the rack 7. This rack 7 is a driving gear 1 that meshes with this rack 7.
0 is connected to the finger 3 by a gear group 11. Therefore, when the reversing device main body 5 moves in the feed direction C1 or the return direction C2, the drive gear 10 moves on the fixed rack 7, and the fingers 3 rotate. The rotational speed of the finger 3 is determined by determining the combination of the gears 10 and 11 so that one pitch of the feed bar 1 causes the finger 3 to rotate 180 degrees.

The rack number 8 moves the feed bar 1 together when the feed bar 1 moves in the vertical direction and moves toward and away from the feed bar 1, and is in a stopped state when the feed bar 1 moves in the feeding direction and the returning direction. The rod 1 of the hydraulic cylinder 13 is bottle-coupled to the base plate
4, and one end of the support rod 20 is connected to the fixed end, and the other end of the support rod 20 is connected to the rack receiver 8.

Therefore, when the feed bar 1 moves up and down and moves toward and away from the feed bar 1, the rod 14 expands and contracts in opposition to the feed bar 1, so that the rack receiver 8 moves together with the feed bar 1, and the support rod 20 is moved by the force B'. Direction C'
swing in the direction. The rod 14 may be expanded and contracted by applying a predetermined pressure inside the fluid pressure cylinder 13, or by driving the rod 14 in accordance with the movement of the feed bar 1.

Next, to explain the process of moving the workpiece W by one pitch, the feed bar 1 is moved from the a position to the b position in order to grip the workpiece W processed by the press die set in the position shown in Fig. 1. Move closer to Aino. 1st
The state shown in the figure corresponds to the state in which the workpiece W is gripped by the fingers 3. Next, the finger 1 is raised to the C position. During this time, the crawler 7 moves together with the finger 1.

In this way, after raising the workpiece W, the finger 1
to the d position. At this time, since the rack receiver 7 is attached to the fluid pressure cylinder 13 via the rack receiver 8, the rack 7 is stopped relative to the feed bar 1. Therefore, due to the feed movement of the feed bar 1, the drive tooth is IIO rotates, and this rotation causes finger 3
As a result, the workpiece W is reversed at the time when the finger 3 finishes its feeding movement (position d).

Subsequently, when the feed bar 1 descends to the C position, the workpiece W is placed in the press die for the next process in an inverted state, and the feed bar 1 moves away from each other to reach the f position, which allows the work W to be placed in the press mold for the next process. The installation of the workpiece W into the mold is completed. Then, return the feed bar 1 to 8th place 1. At this time, the finger 3 rotates in the opposite manner to the above.

4 to 6 are diagrams showing other embodiments of the present invention,
The same attached numbers are given to the parts common to the parts in the previous embodiment.

The rack 7 is a rack receiver 8 attached to the reversing device main body 5.
The rack 7
In order to suppress its own axial movement, a receiving part 18 fitted on the end of the rack 7 is supported on the bracket 17 via two arms 15, 16. The other structure is the same as that of the previous embodiment.

According to the present invention, the rack that meshes with the gear connected to the finger moves together with the feed bar when the feed bar moves in the up-down direction and in the approaching/separating direction, and is in a stopped state when the feed bar moves in the workpiece conveying direction. Since it is attached so that it can move freely relative to the feed bar in the workpiece transport direction, the movement of the feed bar in the feeding direction and return direction is converted into the reversing movement of the fingers.
The simple structure allows for smooth reversal of the workpiece.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing one embodiment of the present invention, and FIG. 2 is a perspective view showing one embodiment of the present invention.
A sectional view along ■-■ in the figure, Figure 3 is I-- in Figure 2.
4 is a sectional view showing another embodiment of the present invention, FIG. 5 is a sectional view taken along line vv in FIG. 4, and FIG. 6 is a sectional view taken along line Vl- in FIG. 5. FIG. 3 is a cross-sectional view taken along line Vl. 1...Feed bar, 3...Finger, 5...
The reversing device main body, 7... rack, 8... rack holder are the patent applicant Miike Kogyo Co., Ltd. - First venture 6t! 1

Claims (1)

[Claims] The workpieces are sequentially moved by moving two feeders parallel to each other, each having fingers for gripping the workpieces at predetermined intervals, in the workpiece conveyance direction, up and down directions, and in the directions toward and away from each other. In a transfer press device that transfers and presses in *a-like manner, the finger is rotatably attached to the reversing device main body fixed to the feed bar, and a rack that meshes with a gear connected to the finger is provided. The workpiece is moved relative to the feedbar so that the feedbar moves together with the feedbar when the feedbar moves in the vertical direction and the approach/separation direction, and is stopped when the feedbar moves in the workpiece conveyance direction. A transfer press device, characterized in that the feed bar is mounted so as to be relatively movable in the conveyance direction, and the movement of the feed bar in the workpiece conveyance direction is converted into rotational movement of the fingers.