SU599891A1 - Apparatus for manufacturing hollow articles from sheet stock - Google Patents

Description

one

The invention relates to the processing of metals by pressure and can be used in the manufacture of stamping parts with flanpami.

A device for manufacturing hollow parts from sheet material is known, comprising an upper movable plate, a punch fixed on the upper plate, a lower fixed plate and a matrix mounted thereon and a mandrel associated with driving its axial movement.

The drawback of this device is the impossibility of obtaining hollow parts with flanges or bent antennae, which reduces the technological capabilities of the device.

The purpose of the invention is to expand the technological capabilities of the device by providing opportunities for obtaining products with flanges.

For this, it is provided with a cylindrical body with oval holes, mounted coaxially with the mandrel, and driving its axial working movement, wherein the mandrel is made with pins located in the oval holes of the body, and the body is spring-loaded in the axial direction relative to the mandrel pins.

The drive of the axial movement of the body is made in the form of a wedge fixed on the upper plate.

The device is equipped with a limiting axial displacement of the body during its reverse course.

FIG. 1 shows the proposed device in section; pas figs. 2 - the same, top view; pas figs. 3 - mandrel assembly with a housing.

The device comprises an upper base plate 1, a wedge 2 and a puapson holder 3 fixed to the upper plate 1, a wedge 4 rigidly connected to the collar 2. A punch consisting of rigidly connected diversified parts

5-7, locked in the holder. The punch is spring-loaded spring 8. On the bottom plate 9, a matrix is installed consisting of parts 10-12, post 13, bar 14, mandrel 15 pivotally connected to the slider 16 mounted on the stud 17, rigidly fixed in the rack 13, and spring-loaded spring 18. A cylindrical case 19 with a lid 20 fixed 21 is mounted coaxially with a mandrel 15. A spring 22 is mounted coaxially between the mandrel and the case, supporting one end to the lid 20, and another to a washer 23 in contact with the mounting pins 24 installed with WHO

Movement in the oval holes of the housing. On the case there is a limiter 25, and on the rack - a limiter 26.

The spring 27 through the pusher 28 communicates with the housing.

The sheet stock is fed by the feed mechanism 29.

The device works as follows.

The sheet material is fed into the work area through the feed mechanism 29. When the upper plate 1 moves towards the bottom plate 9, the wedge 2, in contact with the slider 16, does not cut it along the studs 17 to the front more beautiful position.

The spring 22 is expanded to the extreme position, which the pin 24 occupies in the holes made in the housing. The mandrel occupies the front extreme solozhekpe under the pre-bent part and moves simultaneously with the body due to the fact that the pin 24 engages the front extreme position B of the oval openings x of the body. After mixing, e1-1i of the mandrel with the housing, the punch part 7 of the punch begins to descend, at the same time as part 6 of the punch, the workpiece is cut, and part 5 of the punch is shaped into a bend. When the part 7 of the punch interacts with the part 10 of the die and the mandrel 15, the shaped bend is made and the antennae are pre-bended at the same time due to the force of the spring 8.

Further, due to the interaction of the wedge 4 with the housing, the housing moves along the mandrel to the front edge position of the housing. At this moment, the antenna is finally bend on the mandrel, the spring 8 is compressed until the punch stops in the slab 1.

When the upper plate 1 is raised at the same time, the wedge 4 releases the case 15, which due to the spring 22 moves in the opposite direction. The punch is then supported, and the body with the mandrel 15 pushes the restrictor screw 26 under the action of the spring 27 and the pusher 28, moving the part from the die. Next, the wedge 2 releases the crawler 16, which, under the action of 18, moves along the spikes 17 to the rear extreme polishing, and the body moves simultaneously with the mandrel to the screw 25. When the mandrel 15 moves

the part falls into the container due to the fact that the case with the stop 25 abuts against the rack 13, and the mandrel continues to move, leaving the part due to the fact that the slider 16, released by the wedge 2, under the action of springs

18 returns to the starting position. Further, the cycle of obtaining the finished part and releasing it into the container is repeated.

The proposed design of the device allows to obtain configuration products in one working stroke of the tool.

Claims (3)

Invention Formula A device for the manufacture of hollow parts; en from a sheet material, comprising an upper movable plate, fixed by means of a punch in the base of the plate, a nil-: a new fixed plate and a matrix and a mandrel mounted to the / to the plate, connected with the drive of its axial movement, distinguished by that, in order to expand the technological capabilities of the device by providing the possibility of obtaining with flanges, it is equipped with a cylindrical body with oval holes, mounted coaxially with the mandrel, and its axial working movement is driven with the mandrels arranged in the oval holes of the body , and the body is spring-loaded in the axial direction relative to the pins onravki. 2. A device according to claim 1, characterized in that the drive for axial movement of the body is made in the form of a wedge fixed in the upper nlite. 3. Device by no. 1 and 2, characterized in that it is provided with an axial movement restriction of the housing during its reverse course. Source of information accepted during examination 1. USSR author's certificate No. 396148, cl. In 21D 11/00, 1974. 2/9 13 2S26 / &; - - “Ll / otlzsAA: - - - 7-1: / Cg, // 2 ...... & tT Vj- -jis - iv mi g U w w i like1: w15: Y: 1ZH GSH 1Я- ± y1; : 22 5 9, 25 X , YU