SU1754384A1 - Clamping device - Google Patents

Abstract

Use of the invention: mechanization of assembly and welding. SUMMARY OF THE INVENTION: The clamping device comprises clamping levers mounted on mt 3. A guide cam 10 is fixed on the t3. In the bracket 12 a guide element 11 is installed with a hole for a slider 14 pivotally connected to the power cylinder 15. The slider is made with sections inclined relative to its straight linear sections. The opening of the guiding element 11 is made with inclined sections corresponding to the inclined sections of the slider 14. On the slider 14 a finger is fixed, which is installed with the ability to interact with the guiding cam 10. 5 Il.

Description

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The invention relates to welding, in particular to clamping devices.

The purpose of the invention is to increase reliability by ensuring that the clamping levers are fixed in the clamping position.

1 shows the proposed clamping device in the working position, general view, section, FIG. 2 is the same in the starting position; in Fig.U - section A - A in Fig.1; figure 4 - section B - B in figure 1; figure 5 - node I in figure 1.

The clamping device comprises a swiveling clamping lever consisting of a clamp 1, pivotally connected with arm 2, which is movably axially mounted on rod 3 and fixed in the radial direction relative to it by a key 4. Above the shoulder is spring-loaded 6 inserted into the cup 5, the compression force of which is regulated by the nuts 7, screwed onto the threaded end of the string gi 3, and rests on the shoulder of the bottom. Tug 3, passed through the guide sleeve 8 of the rack 9, is fitted with a guide cam 10. Tha 3 of the pivoting pressure lever is connected pivotally with the guide element 11 inserted into the groove of the bracket 12 attached to the housing 13. Into the reel The element 11 is provided with a shaped groove for a slider 14 pivotally connected to a ram cylinder 15 pivotally connected to a bracket 16 fixed to the swiveling housing 13. In the groove of the slider 14, a finger 17 is inserted and fixed, cooperating with a guide cam 10.

A cover 18 is attached to the bracket 12, which holds the guide element 11 therein and a slider 14, which is also a support for the finger 17.

The clamping device operates as follows.

Using a workshop crane, the welded products 19 and 20 are mounted on the rotary body 13 along the base stops 21 and 22. The power cylinder 15 is turned on, the rod 23 is extended, moving the slider 14 With the finger 17, which rotates the rotary hold-down lever 90 °, through the direction the cam 10, along which the finger 17 continues to move, fixing this ugb / f, the ATGTtb rGSh begins to slide the inclined sections of the guide element 11 and the slide 14, which move the swivel hold-down lever in the direction of the perpendicular motion

the slide 14. The pivot clamping lever continues to move due to the compression of the spring 6 and stops at the exit from the inclined sections of the slide 14 and the guide element 11 to the straight sections. The slider 14 continues to move up to the stop finger 17 in the flange of the cover 18.

After welding, the assembled products 19 and 20 turn on the force of the cylinder 15 in order to

the clamping device to return to its original position.

As the slide 14 travels in the opposite direction, the slanting sections of the slide 14 and the guide

element 11, not involved in the clamp, and accordingly the movement of the pivot pressure lever in the opposite direction,

Upon exiting the inclined sections of the guide element 11 and the slider 14, the rotation of the pivoting pressure lever stops in straight sections, after which the finger 17, acting on the guide cam 10, rotates it to its original position,

which is fixed by abutting the guide cam 10 into the bracket 12.

Thus, the application of the proposed clamping device allows to expand the technological capabilities for

by eliminating the departure from the base stops of the assembled products and the violation of the size chains in any position of the rotary assembly devices.

Claims (1)

Invention Formula A clamping device comprising pivoting clamping levers mounted in the housing, pivotally connected to the ram cylinder, a slide with rectilinear sections fixed on the lever with the possibility of interaction with a ram, a guide element, characterized in that, in order to increase reliability by ensuring the clamping lever is fixed in the position of the clamp, the slider is made with parallel sections inclined relative to the straight sections, the guide element is made with an opening for the slider with inclined fixed uyuschimi portions mating inclined portions of the slider, wherein the clamping lever is equipped with a guide cam, a slider - finger mounted to cooperate with a guide cam of the lever. about htshg e i .... 4 l ,, lL .X-XЯ h: i h: J