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An assembly jig for opening and closing toggle arms

A technology for assembling jigs and fixtures, which is applied in the direction of manufacturing tools, workpiece clamping devices, etc., can solve the problems of time-consuming, labor-intensive, high cost, and low device matching efficiency, and achieve the effects of safe and convenient operation, uniform distribution and simple structure.

Active Publication Date: 2016-08-24
湖南开关有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing opening and closing levers are manually assembled, which not only consumes time and effort, but also has high cost and low installation efficiency.

Method used

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  • An assembly jig for opening and closing toggle arms
  • An assembly jig for opening and closing toggle arms
  • An assembly jig for opening and closing toggle arms

Examples

Experimental program
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Embodiment Construction

[0012] The patent is described in detail below in conjunction with the accompanying drawings.

[0013] Such as figure 1 As shown, the present invention is an assembly jig for opening and closing crank arms, which is convenient for assembling the bushing 81 with the bushing hole 811, the crank arm frame 82 and several buffer pieces 83 into the crank arm 8. The clamp includes a bottom frame 1. Screw rod 2, punch 3, pressure plate 4, nut 5, washer 6 and screw 7. in:

[0014] see in conjunction figure 2 , the underframe 1 is a hollow frame welded by a base plate 11, two side plates 12 and an upper plate 13, a square hole 14 is provided in the center of the base plate 11, and a shaft sleeve 81 with the crank arm 8 is provided in the center of the upper plate 13. The corresponding hollow opening 15 of the outer shape of the upper plate 13, and a positioning plate 16 is fixed above the upper plate 13, and a through hole 17 is provided in the center of the positioning plate 16. Th...

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PUM

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Abstract

The invention provides a clamp for assembling an opening and closing connecting lever. The clamp comprises a bottom frame which is formed through a bottom plate, two side plates and an upper plate in a welding manner, wherein a square hole is formed in the center of the bottom plate; a hollowed-out opening of which the shape is corresponding to that of a shaft sleeve of the connecting lever is formed in the center of the upper plate; a positioning plate with a through hole is fixed to the upper plate and used for positioning a connecting lever frame of the connecting lever during assembling; one end of a screw rod is provided with a nut while the other end of the screw passes through a pressing plate, a punch, the through hole, the hollowed-out opening and the square hole and then is fixed to the bottom part of the bottom frame through a gasket and a screw. The nut can rotate under the effect of external force, and the rotating nut drives the pressing plate to press the punch on which the shaft sleeve is borne to move toward the connecting lever frame of which four corners are correspondingly provided with buffering parts, then the punch runs through the connecting lever frame, the positioning plate and the upper plate and finally falls into the bottom frame, the shaft sleeve is pressed into the connecting lever frame, and the buffering parts are uniformly distributed between the connecting lever frame and the shaft sleeve, so as to finish the assembling of the connecting lever. According to the clamp, a plurality of buffering parts can be uniformly distributed between the connecting lever frame and the shaft sleeve and remain the same distributing height and size, so that the mounting size of the connecting lever can be ensured, and as a result, the performance reliability of the connecting lever is improved.

Description

technical field [0001] The invention relates to a jig for assembling opening and closing toggle arms in a scroll spring energy storage operating mechanism of a vacuum circuit breaker. Background technique [0002] In the scroll spring energy storage operating mechanism of the vacuum circuit breaker, there are multiple pieces of elastic rubber opening and closing levers inside, which are the levers for maintaining the opening and closing state of the circuit breaker, and also have the function of a buffer. During the opening and closing process, at the end of the stroke, it can prevent the circuit breaker from being overly impacted and absorb excess energy. And whether the elastic rubber in the crank arm is installed evenly will directly affect the force of the opening and closing crank arm in the opening and closing state, the reliability of the mechanism movement and the mechanical characteristics of the circuit breaker. However, the existing opening and closing levers are...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B25B11/02
CPCB25B11/02
Inventor 何艳辉王三华刘玉芳
Owner 湖南开关有限责任公司
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