SU733835A1 - Plant for upsetting - Google Patents

Description

(54) INSTALLATION FOR INSTALLATION

The invention relates to the field of forging and pressing equipment and can be used to produce nipples at the ends of pipes, for example ball nipple heads.

A known installation for the landing of the bulges at the ends of the pipes, comprising a housing, power cylinders for clamping and disembarking and a clamping device with movable and fixed jaws 1).

However, in a known installation, it is not possible to produce a thickening of the type of ball nipple heads.

The installation of the present invention eliminates this disadvantage due to the fact that the clamping and unloading cylinders are arranged in parallel with the clamping device embedded in the housing, and the clamping device is provided with a vertically movable slider, kinematically connected with the clamp cylinder rod, and the movable sponge is fixed to the slider, and the fixed sponge is rigidly connected to the body.

In this case, the kinematic connection between the slider and the cylinder stem of the clamp is made

2

in the form of a wedge self-braking mechanism, the roller of which is mounted on a slider, and the wedge surface is made on the clamp bar of the clamping cylinder.

In addition, in order to increase the rigidity of the structure, the installation is equipped with slider directions for the slider, made in the form of skalok, located in the housing and in the shell 1e on both its sides symmetrically with respect to the plane of the junction of the slider and the housing.

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FIG. 1 shows the proposed installation, a longitudinal section; in fig. 2 is a view along arrow A in FIG. one; in fig. 3 is a cross-sectional view BB in FIG. 2

The installation contains a solid housing 1,

15 which is built hydrocylschr 2 pipe clamp; its rod 3 is located in the guide bushing 4. Its upper part is cut at a certain length, thereby opening the rod having a cut with a horizontal section 20 and a wedge surface with a rise of 25-30 at section b and 2 ° 30 at section c.

Claims (3)

The last, most loaded area, is reinforced with an insert 5 of increased hardness. 37 The wedge surface through the roller 6 interacts with a vertically movable slider 7, on which a lower movable sponge 8 of the clamping mechanism is fixed, the upper motionless sponge 9 of which is fixed in the housing 1. Four rolling pins 10 arranged in two vertical bores serve to guide the slider 7. on each side of the slider so that the axis of each rolling pin coincides with the plane of the junction of the slider and core, and half of each rolling pin lies in the body, and half - in the slider. From the vertical movement of the rolling pin, they are held by their shoulder, which is locked in the corresponding housing nest by the lid 11. Parallel to the hydraulic cylinder 2 of the pipe clamp, the hydraulic cylinder 12 is mounted on the nipple, the rod 13 of which has an internal thread into which to fit the punch holder 14 with the punch 15. A pump unit is provided for feeding hydraulic cylinders with a working fluid, and electr-controlled hydraulic distributors for switching fluid flows. The installation works as follows. The blank (pipe) is inserted between the jaws 8 and 9 of the clamping device into the punch 15 against the stop. The working fluid is supplied to the cylinder cavity 2. Stem 3 is retracted Roller 6 of the slider 7 rolls first along the horizontal section of the stem, then over the wedge section at a high angle of elevation (the slider quickly goes to) and then along the section with a small angle the pipe is clamped. After the pipe is clamped, the working fluid is supplied to the rodless 5 through the cavity of the upset cylinder 12, its rod 13 extends and the nipple is set up. At the end of the landing, the cylinder 12 is reversed, and the punch 15 is moved to its original position. . To release the preform, the working fluid is fed into the rodless cavity of cylinder 2. The slider 7 with the clamping sponge 8 is lowered and releases the pipe. Claim 1. A plant for planting nipples at the ends of pipes, comprising a housing, clamping and disembarking power cylinders and a clamping device with movable and fixed jaws, characterized in that, in order to allow the formation of bulges such as ball nipple heads, the clamping and disembarking cylinders are arranged in parallel and together with the clamping device is integrated into the housing, and the clamping device is provided with a vertically movable slider, kinematically connected with the clamp cylinder cylinder, and the movable sponge is fixed on the slider, and the fixed sponge is rigidly connected Ana with the body. 2. The installation for disembarking under item 1, characterized in that the kinematic connection between the slider and the cylinder rod of the clamp is made in the form of a wedge self-braking motor, the roller of which is mounted on the slide, and the wedge surface is made on the rod of the clamp cylinder. 3. The installation for disembarking under item 1, which is, in order to increase the rigidity of the structure, it is equipped with guides for the slide, executed in the form of skalok, located in the body and in the slide on both its sides, symmetrically relative to the plane the junction of the slide and body. Sources of information taken into account during the examination 1. US Patent No. 3959998, cl. 72-176, 1975 (prototype). a 8 s BrtoSepHyrnd