SU1191246A1 - Controllable clamp - Google Patents

Abstract

A ADJUSTABLE CLAMP, containing a drive mounted in the housing, a lead screw with rolling bearings, and clamping levers associated with the lead screw, characterized in that, in order to expand technological capabilities by providing clamping of several parts arranged in parallel planes with different predetermined HbWfj forces The lead screw is equipped with nuts according to the number of clamping levers and is spring-loaded relative to the housing, the clamping levers are mounted on the nuts by means of rolling bearings and are equipped with spring-loaded shoes. For the nuts, the actuator is made in the form of an i cylinder, the spindle screw is attached to the rod of this power qi (L of the cylinder, and the casing is fitted with longitudinal grooves for the clamping levers.

Description

The invention relates to mechanical engineering, namely to ancillary equipment for assembly and welding, and can be used, for example, to press thin-walled parts with different predetermined forces.

The purpose of the invention is the expansion of technological capabilities by providing clamping of several parts arranged in parallel planes with various predetermined forces.

FIG. 1 schematically depicts an adjustable clamp before pressing the parts; in fig. 2 shows section A-A in FIG. G, FIG. 3 - clamp at the time of pressing the parts.

The adjustable clamp comprises screw pairs 1 formed by the lead screw 2 with nuts 3 interacting with the spring-loaded springs 4 of the shoes 5. The nuts 3 are connected by means of rolling bearings 6 and covers 7 located in the longitudinal slots 9 of the housing 10. A power cylinder 11 is connected to the housing 10, which is connected to the lead screw 2. A pusher 13 and a spring 14 are located at the free rectangular end 12 of the lead screw. Springs 4 abut against plugs 15. Parts 16 and 17 that need to be pressed with the required force located on different levels in parallel planes.

Adjustable clamping works as follows.

In the initial position, the parts 16 and 17 are installed. Using the plugs 15, they set the required clamping force, for which they rotate to appropriately compress the spring 4, which transfers the force to the shoes 5. Then turn on the power cylinder 11 attached to the housing 10, and it begins to move the screw 2 down. Together with it, the nuts 3 are moved, forming screw pairs 1, which, by means of rolling bearings 6 and kräppek 7, move the clamping levers 8 located in the longitudinal grooves 9 of the housing 10. When the clamping lever 16 stops in contact with the required clamping force, the nut 3 of this lever rotate. When the next presser lever stops in the part 17, its nut begins to turn. The screw 2 is moved by the power cylinder 11 to those. then until the pusher 13 compresses the spring 14 (FIG. 3). The sum of the compressive forces of the spring 14 and press the parts 16 and 17 is equal to the force on the rod of the power cylinder 11.

The proposed adjustable clamp provides clamping of several parts arranged in parallel planes with various predetermined forces.

FIG. one

Claims (1)

ADJUSTABLE CLAMP, comprising a drive installed in the housing, a spindle with rolling bearings and clamping levers connected to the spindle, characterized in that, in order to expand, technological capabilities by clamping several parts located in parallel planes with various predetermined forces the screw is equipped with nuts according to the number of clamping levers and is spring-loaded relative to the housing, the clamping levers are mounted on the nuts by means of rolling bearings and are equipped with spring-loaded shoes for I have nuts, the drive is made in the form of a power cylinder, the lead screw is fixed on the rod of this power cylinder, and the body is made with longitudinal grooves for the clamping levers. ZHTBTG'T) 1191246 2