JPS5877732A - Forging press equipped with transfer feed device - Google Patents

Abstract

PURPOSE:To sort products and burrs mechanically by using a final die in a blank material feeding direction for external burr punching, and carrying external burrs and products to different chutes by a scooping pawl and a clamper, respectively. CONSTITUTION:Through the operation of a press device, a transfer feed device, and a manipulator 10, one massive blank material is fed successively and successive press work including upsetting, rough striking, and finish punching is performed to form plural products 26; one external burr 27 and said products 26 are left at an external burr punching lower die. The external burrs 27 are scooped up with a gripping pawl 2', and the products 26 are clamped by respective clampers 19 of a manipulator 10 and lifted more highly than the external burrs 27, thereby carrying the products and external burr 27 to corresponding shoots 8. In this case, the advance stroke of the manipulator 10 is greater than that of a feed bar 1, so the external burrs 27 and products 26 are carried to the different chutes, thus sorting the products and external burrs.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a forging press that is used to forge a plurality of products from one block of material by sequentially feeding the material between a plurality of molds 1 that are operated by a press. Regarding.

Generally, in a forging press equipped with a transfer feed device, the transfer feed device operates to sequentially feed a block of material to a group of dies, and the press device operates to perform upsetting, rough punching, finishing punching, and punching. One product is obtained by doing this. In recent years, in order to further improve processing efficiency, forging presses that can forge multiple products from one block of material have been developed.
When a transfer feed device is used, which clamps, lifts, and advances the moon with the gripping claws provided oppositely to each of the four presses and the two foot bars,
Although the material can be progressively fed until the cutting die is finished, the plurality of products divided by the cutting process cannot be mechanically transferred from the cutting die -L.

Therefore, conventionally, in order to mechanically remove the product and outer material from the machine after punching, a hole is made in the lower punching die for product ejection, and the product is removed at the same time as the press punching operation, and the product remains on the lower punching die. A measure has been taken to transport the outside of the product out of the machine by attaching a feed bar, and with this product removal method, it is necessary to drill a large hole in the lower mold and the holder that supports it for product removal. This is not preferable for die and guide holders that require rigidity.

In addition, the product may be bent or damaged by the impact force when punching or dropping. Additionally, the product may become clogged in the discharge hole, causing
When a blockage 11 occurs, the press apparatus is interrupted and the operator manually removes the IJ blockage 11 before restarting operation, which has many drawbacks such as unavoidable operation loss time.

The present invention has been made in order to solve the drawbacks listed below.Each of a group of molds is equipped with a plurality of product forming dies, so that a plurality of products can be forged from one material, Among the mold groups, the rearmost mold in the feed direction is used as an outer burr punching die, and the outer burr remaining on this die is scooped out with a feed bar mounting claw and carried out, and multiple products on the cutting die are removed. The object of the present invention is to provide a forging press equipped with a transfer feed device that can mechanically sort pallets and products during the conveyance process by gripping and conveying them with a manipulator linked to a feed pal drive device. be.

Hereinafter, the embodiment will be explained with reference to the drawings. In the drawing, reference numeral 1 denotes a set of two feed bars each having a plurality of gripping claws 2 on opposing sides, both ends of which are connected to a drive device 34.
The structure is such that the feed bar 1 and the gripping claw 2 are moved three-dimensionally by the operation of the drive device 3.4, drawing a locus shown by the solid line in FIG. 4.

Reference numeral 21 denotes a gripping claw for scooping out outer particles, which is disposed oppositely on the rearmost feed bar l in the material feeding direction.

Reference numeral 5 denotes an upper mold group to be pressed, and 6 a lower mold group fixedly installed opposite to the upper mold group 5. These upper and lower mold groups 5.6
Each mold is equipped with multiple product molding molds.
It is formed in the order of arauchi, shigeuchi, and nuki. 5
′ is the upper die for punching outside burrs.

6' is a lower mold for punching out external burrs. Reference numeral 7 denotes a product knockout rod, and the rod 7 may be omitted depending on the product shape t. 8, its entrance is located on the side of the outer Paris punching die 6',
The outlet is a double chute installed above the conveyor 9.

Reference numeral 81 designates a 7-tube for dropping outside, 811 designates a product drop chute, and 10 designates a manipulator.

The detailed structure of the manipulator 10 will be described below.

The IJ is a swinging frame whose front end is pivoted to the machine frame (not shown) and whose rear end is operatively connected to a swinging lever 13 via a rod 12 with pins attached at both ends. The tube 14 is loaded. This sliding tube 14 is operatively connected to a swing lever 17 via a rod 16 with an overload prevention device 15 attached at both ends with pins.

A cylinder 18 is installed at the rear end of the sliding tube 14, and 19 clampers are installed at the front end, corresponding to the number of products on the outer punching lower die. The force is transmitted as the opening/closing force of the clamper 19 via the moving cylinder penetrating rod 2o.

21 is a shaft that rotates synchronously in conjunction with the feed bar drive device 3, and is equipped with cams 22 and 23 in one body.
2. The swing lever 13.17 is brought into contact with Q3 via a roller. Reference numerals 24 and 25 denote biasing air cylinders for constantly bringing the swing levers 13 and 17 into contact with the cams 22 and 23. The clamper 19 installed at the front end of the sliding tube 14 is configured to be moved two-dimensionally by the rotation of the cam g2.23, drawing a locus shown in FIG. 23 deviation amount and swing lever 1
The lever length of 3.17 is set so that the lift amount of the clamper 19 is larger than the lift amount of the feed bar 1, and is larger (or smaller) than the advance amount of the feed bar 1.

The clamper 19 is opened and closed by the cylinder 18 using the shaft 2.
An unillustrated solenoid valve is opened and closed by a signal from a rotary switch (not shown) directly connected to cylinder 1, and the pressure medium is transferred to cylinder 1.
It is designed to be supplied and discharged at 8.

Since the present invention is configured in this manner, one block of material is sequentially fed by the operation of the press device, transfer feed device, and human bulator 10, and is subjected to a series of pressurization operations such as upsetting, rough punching, finishing punching, and punching. It is processed and formed into a plurality of products 26. And outer burr punching lower die 61
One 4° external burr 27 and a plurality of products 26 remain on the top. These inner and outer burrs 27 are removed by the gripping claws 21.

The plurality of products 26 are grasped by each clamper 19 of the manipulator 10, lifted larger than the outer burr 27, and conveyed together to the chute 8 side.

In this WB reverse process, the advance stroke of the manipulator IO is made larger than the advance stroke of the feed bar 1. With σ), the outer burr 2? The product 26 is transported to the top of the chute 81, and the product 26 is transported to the chute 8111 through the top of the chute 8, and then down →
They are unclamped and transported through each chute in a separated state to a desired location by a conveyor 9.

As described above, according to the present invention, the plurality of divided products after punching can be carried out of the machine together with the manipulator and the feed pawl attachment claw, and the products and the paris can be carried out together. In addition to being able to sort internally during the process, we were able to eliminate the drawbacks of conventional equipment.

[Brief explanation of the drawing]

FIG. 1 is a schematic explanatory view of a forging press with a transfer one-foot device according to the present invention, and FIG. 2 is a cross-sectional view taken along the line 1 in FIG. FIG. 3 is an enlarged perspective view of the main parts, FIG. 4 is a diagram showing the movement locus of the clamper perpendicularly to the feed bar and the gripping claw, and FIG. 5 is an explanatory diagram of the operation. 3...Feed bar drive device 5'...Outer burr punching upper die 61...Outer burr punching lower die 10...Manipulator 19...Clamper 26...Product 27...Outer Bali Figure 1 Figure 2 Figure 4

Claims (1)

[Claims] The material is sequentially fed between multiple molds that are operated by presses.
! A transfer feed device for forming and forming (J forging press, each die is equipped with multiple product forming dies, the last die in the material feeding direction is used as an outer edge punching die, and the outer edge is transferred from above the cutting die. Attach a cutting claw to the feed bar, attach a masibulator equipped with a clamper to carry out the product of the cutting die-L to the feed bar drive device, and set one button to the feed bar drive device. A forging press with a transfer feed device viewed from above, characterized in that the clamper is larger than the lift view of the foot bar and has a different feed amount relative to the feed bar feed.