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Two-stage curve flexible pressing connecting hydraulic control method for fragile materials

A technology of brittle materials and control methods, applied in the direction of fluid pressure actuators, servo motors, servo motor components, etc., can solve problems such as damage and fracture of brittle materials, achieve high productivity, flexible crimping process, and crimping connection process Safe and reliable effect

Active Publication Date: 2014-06-25
上海昀泰机电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if a plastic material is crimped with a brittle material and higher productivity is required, the above process may easily cause damage or even fracture of the brittle material.

Method used

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  • Two-stage curve flexible pressing connecting hydraulic control method for fragile materials
  • Two-stage curve flexible pressing connecting hydraulic control method for fragile materials
  • Two-stage curve flexible pressing connecting hydraulic control method for fragile materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as Figure 4 As shown, the speed control valve scheme is adopted: at the beginning of crimping, the DT1 electromagnet of the electromagnetic reversing valve 6 and the DT3 electromagnet of the electric one-way speed control valve 8 are energized, and at this time, the motor 1 drives the oil pump 3 out through the coupling 2 The high-pressure oil passes through the pipeline filter 4 to the left passage of the electromagnetic reversing valve 6, passes through the one-way valve 7 and then through the electric one-way electromagnetic speed control valve 8, all flow to the plunger cylinder 10, and quickly pushes the plunger 11 to the workpiece at high speed. Carry out crimping; when the pressure reaches the set value, DT3 will lose power, and the oil pumped out will flow into the plunger cylinder 10 through the throttle valve in the electric check valve 8, and slowly push the plunger 11 to press the workpiece. Then, the remaining oil flows back to the oil tank from the o...

Embodiment 2

[0030] Such as Figure 5 As shown, the double-pump scheme is adopted: when crimping starts, the electromagnet DT1 of the electromagnetic reversing valve 12' is energized, and the high-pressure oil output by the first oil pump 1' and the second oil pump 4' respectively passes through the check valve 7', After 8', it enters the electromagnetic reversing valve 12' through the pipeline oil filter 9', enters the left chamber of the plunger cylinder 14' according to the oil flow direction of the left chamber, and pushes the plunger 15' to the right quickly to crimp the workpiece; When the system pressure rises to the set value P1, DT1 continues to be energized, and at the same time, the electromagnet DT3 of the two-position four-way valve 11' is energized, and the high-pressure oil output by the second oil pump 4' passes through the left side of the two-position four-way valve 11'. The cavity path flows back to the oil tank, and the high-pressure oil output by the first oil pump 1' ...

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PUM

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Abstract

The invention relates to a two-stage curve flexible pressing connecting hydraulic control method for fragile materials. According to the method, hydraulic oil flow conveyed to an oil cylinder is changed, so that a pressing connecting process is divided into two stages of quick pressing connecting and flexible pressing connecting. In the first stage, loading force is increased quickly until the loading force reaches a P1 point, and then the loading force is increased slowly until the process is over; and the loading force is increased gently from P1 to P2, and the loading process is slow and is called flexible pressing connecting. Compared with the prior art, the method has the advantages of being high in production rate, high in safety and reliability and the like, the fragile materials cannot be easily damaged, a pressure maintaining process can be replaced, high pressing connecting quality is obtained, and high production rate, safety and reliability are integrated.

Description

technical field [0001] The invention relates to a crimping technology, in particular to a hydraulic control method for two-stage curve flexible crimping for brittle materials. Background technique [0002] In the process of machining, it is a frequently used method to connect several materials or parts into one by crimping. The crimping loading force can be mechanical or hydraulic, and the loading process is as follows: figure 1 or figure 2 shown. figure 1 and figure 2 Among them, according to productivity requirements, curve a or b can be selected for loading. [0003] The above process is completely feasible for crimping two or more plastic materials. However, if a plastic material is crimped with a brittle material and higher productivity is required, the above-mentioned process may easily cause damage or even fracture of the brittle material. Contents of the invention [0004] The object of the present invention is to provide a high productivity, high safety an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B11/04F15B13/02B29C65/56
Inventor 丁庆成
Owner 上海昀泰机电科技有限公司