SU1382633A1 - Clamping device - Google Patents

Description

(21) 4146198 / 27-27

(22) 10/4/86

(46) 03/23/88. Bul № 11

(71) Zaporizhzhya Design and Technological Institute

(72) C. 3. Carpet

(53) 621.791.039 (088.8)

(56) USSR author's certificate

No. 1204355, cl. At 23 K 37/04, 07.16.84.

(54) PRESSING TOOL

(57) The invention relates to welding technology, in particular to assembly and welding equipment, and can be used for securing bulk frame large-sized products. The goal is to expand technological capabilities. For clamping the parts include a power cylinder 2, a rod

which, being advanced, acts on the clamping lever (P) 3. Lift, P 3 is first supported by the rollers 5 in the locking bars 6, preventing the lever from turning. P 3 rises, moving the slider 8 behind it until the spring-loaded rocker 13 with the contact roller 14 slides the slider 8 all the way down its checks 11 into the guide 7. At the same time, the rollers 5 come out of contact with the locking strips 6, and the rod cylinder 2, continuing his turn, turns around P 3, pressing down the part. The part is unclamped in reverse order. This increases the height of the clamping lever when moving the slide, which ensures the clamping of products in a large range of heights. 2 hp f-ly, 7 ill.

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The invention relates to mechanical engineering, in particular, to ancillary equipment for the mechanization of assembly and welding operations, and can be used for securing bulk large-sized frame products such as body bases by an autograph.

The purpose of the invention is the expansion of technological capabilities by providing clamping products of different heights.

FIG. 1 shows the clamping device, the initial position; in fig. 2 - the same, with the clamping lever inserted into the limited working space of the product; in fig. 3 - the same at the moment of pressing the parts; in fig. 4 is a view A of FIG. 3; in fig. 5 is a section BB in FIG. one; in fig. 6 is a view of B in FIG. one; in fig. 7 - section G - D in FIG. 6

The clamping device comprises a housing 1 with an actuator fixed in it, made in the form of a rocking ram 2 without braking at the end of the piston stroke (to shorten its length) and two throttles (for smooth running) installed in front of the piston and piston cavities of the ram cylinder . The power cylinder rod is pivotally connected to the shoulder of the two shoulders clamping lever 3 by means of an axis 4 with rollers 5 placed on it.

On the case there are fixed locking straps 6 and a cylindrical guide 7, in which a slider 8 is placed with an emphasis 9, limiting the turn of the pressure lever in the direction opposite to the product clamp.

The locking bars are installed with the ability to interact with the rollers when the stem of the power cylinder is extended. The interaction surface of the slats with the rollers is parallel to the guide, while the length of the slats is less than the stroke of the slide by an amount sufficient to turn the pressure lever when the slide is fully extended.

The slider is made in the form of a rod with a longitudinal point (Fig. 5), which interacts with a guide plate 10 mounted on the guide plate to prevent the slide from turning. A clamping lever is hinged at one end of the slider, and a check 11 is installed at the other end to interact with the guide when the slide is extended and to prevent the slide from coming out of the guide.

On the case there is a bracket 12 with a rocker 13 that is hinged in it, on one shoulder of which a contact roller 14 is installed, alternately interacting with the flat slider and its end, and the other shoulder is connected to a spring 15 fixed on the case. An emphasis 16 is also mounted on the housing with the possibility of its interaction with a slider.

The clamping device operates as follows.

To press the part to the base surface, the power cylinder 2 is turned on, the rod axially extending, acts on the pressure lever 3, the latter, lifting, is supported by the rollers 5 in the locking bars 6, which prevent the pressure lever from turning. The clamping lever rises, moving the slider 8 (fig. 1) behind itself, on which the contact roller 14 rolls until it rolls onto the end surface of the slider 8. In this case, the rocker 13 unfolds in the bracket 12 under the influence of the spring 15 and slides the slider 8 all the way up its checks 11 into the guide 7 (FIG. 2), the rollers 5 coming out of contact with the locking plan 6, and the rod of the power cylinder 2, continuing its course, deploys the presser lever 3, pressing the part (FIG. 3).

In order to unclench the part, the power shafts of the cylinder 2 make the reverse movement, while the clamping lever 3 turns to the stop 9 of the slide 8 (Fig. 2).

Then, the power cylinder pawl, continuing its travel and overcoming the force of the spring 15, rotates the beam 13, the contact roller 14 from the end plane of the slide 8 rolls onto the flatting plane and the slide 8 moves with its end face to the stop 16 (Fig. 1). The amount of removal of the clamping elements depends on the course of the power cylinder 2 and the length

5 locking strips 6.

The use of the proposed clamping device in comparison with the known one allows expanding the technological capabilities as well as using the clamping device in mechanized flow lines for securing large-sized bulk frame products such as a body of a caravan body, the conductors for which are installed at a small height from the floor level.

45

Claims (3)

1. A clamping device comprising a housing with a guide and locking bars mounted in the guide slider, spring, pivotally mounted on the slider, two shoulders clamping lever and drive, made in the form of a power cylinder, the rod of which is pivotally connected to the clamping lever and equipped with rollers mounted on the base of the hinge connecting rod with clamping lever with the ability to interact with locking strips, characterized in that, in order to expand technological capabilities by providing clamping products of different heights, it is equipped with a slider stopper, made in the form of fixed on the rocker arm with a contact roller, while the spring is fixed one end on the body and the other end on the rocker arm. sixteen. 2. A device according to claim I, characterized in that the slider is made with a longitudinal lip for a contact roller. 3. The device according to paragraphs. 1 and 2, characterized in that the power cylinder is double-cavity and equipped with throttles for both cavities. 2 J-: E we dd BUT g Yr eight