CN202684793U - Clamping mechanism - Google Patents

Abstract

The utility model discloses a clamping mechanism. The clamping mechanism is characterized in that an air cylinder is arranged in a barrel body, located on a top plate, and fixedly arranged inversely, and the end of a piston rod of the air cylinder is provided with a three-clamping claw type shutter. The three-clamping claw type shutter is composed of a round disc body and three clamping claws, wherein the round disc body is fixed arranged at the end of the piston rod and provided with an annular clamping groove, the three clamping claws are evenly distributed on the periphery of the round disc body, the middle of each clamping claw is hinged on the inner wall of the barrel body through a pin shaft, the upper end of each clamping claw is fixed in the clamping groove of the round disc body in a clamping mode, and the lower ends of clamping claws clamp a workpiece through a method that elastic bodies fixed on the clamping claws hold the periphery of the workpiece in a surrounding mode.

Description

A kind of clamping device

Technical field

The utility model relates to a kind of clamping device, more particularly especially is applied in the main cone clamping device in the vehicle bridge main cone bearing inner race press-loading process.

Background technology

At present, in automobile assembling industry, for press-fiting of vehicle bridge main cone bearing inner race, be to be removed by a dead lift finishing the main cone of lower bearing inner ring after press-fiting, operating efficiency is subject to great restriction, poor stability.

Summary of the invention

The utility model is to be the weak point of avoiding above-mentioned prior art to deposit, and a kind of clamping device is provided, and is applied in it and carries out the main cone lifting in vehicle bridge main cone bearing inner race press-loading process, to increase work efficiency, improves job security.

The utility model is that the technical solution problem adopts following technical scheme:

The design feature of the utility model clamping device is: in cylindrical shell, be positioned on the top board, be to be inverted and be fixedly installed a cylinder, rod end at the piston rod of described cylinder arranges a three-pawl type shutter, described three-pawl type shutter is to be fixedly installed on the piston rod rod end by one, disc with the annular draw-in groove consists of with three claws that are evenly distributed on the disc periphery, described each claw is to be hinged on the madial wall of described cylindrical shell with bearing pin at the middle part of claw, the upper end of claw fixes in the draw-in groove of disc, and the lower end of claw encircles in the clamping that is formed by the periphery of workpiece workpiece by elastomer fixed thereon.

Compared with the prior art, the utility model beneficial effect is embodied in:

The main cone that carries out that the utility model can be applied in the vehicle bridge main cone bearing inner race press-loading process promotes, and can greatly improve work efficiency, improves job security.

Description of drawings

Fig. 1 is the utility model structural representation.

Number in the figure: 1 cylindrical shell; 2 top boards; 3 cylinders; 4 discs; 5 claws; 6 elastomers; 7 workpiece; 8 seaming chucks; 9 lower bearing inner rings; 10 main cones.

The specific embodiment

Referring to Fig. 1, the version of clamping device is in the present embodiment: in cylindrical shell 1, be positioned on the top board 2 of cylindrical shell 1, be to be inverted and be fixedly installed a cylinder 3, rod end at the piston rod of cylinder 3 arranges a three-pawl type shutter, the three-pawl type shutter is to be fixedly installed on the piston rod rod end by one, disc 4 with the annular draw-in groove consists of with three claws 5 that are evenly distributed on the disc periphery, each claw is to be hinged on the madial wall of cylindrical shell 1 with bearing pin at the middle part of claw 5, the upper end of claw 5 fixes in the draw-in groove of disc 4, the lower end of claw 5 encircles periphery at workpiece 7 by elastomer fixed thereon 6, and workpiece 7 is formed clampings.

Figure 1 shows that the main cone that carries out that the utility model is applied in the vehicle bridge main cone bearing inner race press-loading process promotes, workpiece 7 shown in the figure is the upper male thread section of main cone 10, cylindrical shell 1 is upper fixedly pressure head, and seaming chuck 8 is for lower bearing inner ring 9 being fitted in the part that press-fits on the desired location.

As shown in Figure 1, when the piston rod rod end of cylinder 3 moves down, the claw of three-pawl type shutter namely opens, and removes the clamping to workpiece; When the upwards lifting of piston rod rod end of lifting cylinder 3, the claw of three-pawl type shutter is namely encircled the periphery at workpiece, forms the effective clamping to work, and together promoted by workpiece 7 along with the lifting of cylindrical shell 1 this moment.

Claims (1)

1. clamping device, it is characterized in that: in cylindrical shell (1), be positioned on the top board (2), be to be inverted and be fixedly installed a cylinder (3), rod end at the piston rod of described cylinder (3) arranges a three-pawl type shutter, described three-pawl type shutter is to be fixedly installed on the piston rod rod end by one, consist of with the disc (4) of annular draw-in groove and three claws (5) of being evenly distributed on the disc periphery, described each claw is to be hinged on the madial wall of described cylindrical shell (1) with bearing pin at the middle part of claw (5), the upper end of claw (5) fixes in the draw-in groove of disc (4), and the lower end of claw (5) encircles in the clamping that is formed by the periphery of workpiece (7) workpiece by elastomer fixed thereon (6).

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