CN202639988U

CN202639988U - Positioning device of symmetrical dual connecting rod skid

Info

Publication number: CN202639988U
Application number: CN 201220285689
Authority: CN
Inventors: 赵建国; 刘奇
Original assignee: SHANDONG M&H AUTOMATION EQUIPMENT CO Ltd
Current assignee: MH Robot and Automation Co Ltd
Priority date: 2012-06-18
Filing date: 2012-06-18
Publication date: 2013-01-02
Anticipated expiration: 2022-06-18

Abstract

The utility model discloses a positioning device of a symmetrical dual connecting rod skid. The positioning device comprises two fixing bases, wherein the two fixing bases are arranged symmetrically, a main clamping arm and an auxiliary clamping arm which are arranged correspondingly are hinged between the two fixing bases, chucks are installed correspondingly on outward extending end portions of the main clamping arm and the auxiliary clamping arm, the lower end of the main clamping arm is driven by an air cylinder, the main clamping arm is in power connection with the auxiliary clamping arm through a connecting rod, the main clamping arm and the auxiliary clamping arm are hinged between the two fixing bases respectively through hinged shafts, a protruding portion is arranged on the upper portion of the main clamping arm, the connecting rod is hinged between the protruding portion and the lower end of the auxiliary clamping arm. The positioning device has the advantages of being uniform in force bearing, accurate to position, high in stability, simple in structure and long in service life.

Description

Symmetric double connecting rod skid positioner

Technical field

The utility model is applicable to the location of auto production line skid-mounted conveying device, specifically relates to a kind of symmetric double connecting rod skid positioner.

Background technology

In auto production line skid induction system, skid is rolling operation under the friction pulley driving, because inertia, when skid stops, larger positive and negative site error is arranged, when positional precision being had higher the requirement (as the operation that is welded, switching operation), need detent mechanism (from just or in the other direction) that skid is returned to accurate location (i.e. location).

Currently used skid positioner for the skid of big or middle mounted mass, adopts Motor Drive mostly, realizes the motion of two clamp switched in opposite by gear drive, reaches the purpose to the skid location.Skid for little mounted mass, employing compressed air is power, utilize the contra-parallelogram principle, the motion of two clamp switched in opposite on the implementation structure, its shortcoming are that this mechanism adopts asymmetric design, when clamp is stressed, there is moment of flexure between connecting rod and the crank, the inhomogeneities of power is brought deformation on the space, thereby affects the service life of positioning accuracy and device.

The utility model content

The technical problems to be solved in the utility model provide a kind of stressed evenly, accurate positioning and the strong symmetric double connecting rod skid positioner of stability.

For solving the problems of the technologies described above, the symmetric double connecting rod skid positioner that provides comprises symmetrically arranged two holders, its design feature is: be hinged with corresponding main clamp arm and the secondary clamp arm that arranges between two holders, the overhanging end correspondence of main clamp arm and secondary clamp arm is equipped with chuck, the lower end of main clamp arm is connected by connecting rods power between main clamp arm and the secondary clamp arm by air cylinder driven.

Main clamp arm and secondary clamp arm are contained between two holders by the hinge hinge respectively, and the top of main clamp arm is provided with jut, and described rod hinge connection is between the lower end of jut and secondary clamp arm.

After adopting said structure, frame adopts double support and symmetrical fixing, make positioner have larger rigidity, can be applicable to the skid of middle mounted mass, main clamp arm and the secondary clamp arm of corresponding setting have been adopted, and during the action of air cylinder driven master's clamp arm, drive simultaneously secondary clamp arm action by connecting rod, main, secondary clamp arm moves simultaneously the chuck that makes two correspondences and clamps skid, the opposite characteristic of two rotary direction of the cranks realizes the motion that chuck clamps or discharges in the positioner when utilizing the anti-parallelogram mechanism motion, and is simple in structure, and be delivered to the active force uniform distribution of clamp arm, therefore avoided the problem of distortion.

To sum up, the utlity model has stressed evenly, accurate positioning and the strong advantageous effect of stability, and simple in structure, long service life.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further described:

Fig. 1 is structural representation of the present utility model;

The schematic diagram of Fig. 2 for analysing and observe along A-A line among Fig. 1;

Fig. 3 is the top view of Fig. 1;

Schematic diagram when Fig. 4 is the utility model duty.

The specific embodiment

Such as Fig. 1, Fig. 2 and symmetric double connecting rod skid positioner shown in Figure 3, it comprises symmetrically arranged two holders 1, be hinged with corresponding main clamp arm 2 and the secondary clamp arm 3 that arranges between two holders 1, main clamp arm 2 and secondary clamp arm 3 are contained between two holders 1 by hinge 7 hinges respectively, two bearing pins 7 are symmetrical arranged, the overhanging end correspondence of main clamp arm 2 and secondary clamp arm 3 is equipped with chuck 4, the lower end of main clamp arm 2 is driven by cylinder 6, the back seat that is cylinder 6 is fixed on the support of transporter, the lower end of piston rod and main clamp arm 2 is hinged by hinge, connect by connecting rod 5 power between main clamp arm 2 and the secondary clamp arm 3, the top of main clamp arm 2 is provided with jut 8, and connecting rod 5 is hinged between the lower end of jut 8 and secondary clamp arm 3.

As shown in Figure 4, when cylinder 6 action, spur main clamp arm 2 lower ends, the lower end that drives secondary clamp arm 3 by connecting rod 5 is away from main clamp arm 2, thereby main clamp arm 2 upper ends and secondary clamp arm 3 upper ends are drawn close, and namely two chucks 4 are drawn close mutually, thereby clamp skid 9.

Claims

1. symmetric double connecting rod skid positioner, comprise symmetrically arranged two holders (1), it is characterized in that: be hinged with corresponding main clamp arm (2) and the secondary clamp arm (3) that arranges between two holders (1), the overhanging end correspondence of main clamp arm (2) and secondary clamp arm (3) is equipped with chuck (4), the lower end of main clamp arm (2) is driven by cylinder (6), connects by connecting rod (5) power between main clamp arm (2) and the secondary clamp arm (3).

2. symmetric double connecting rod skid positioner according to claim 1, it is characterized in that: described main clamp arm (2) and secondary clamp arm (3) are contained between two holders (1) by hinge (7) hinge respectively, the top of main clamp arm (2) is provided with jut (8), and described connecting rod (5) is hinged between the lower end of jut (8) and secondary clamp arm (3).