Single-action type variable length connecting rod and crank-connecting rod transmission mechanism

A transmission mechanism, single-acting technology, applied in the direction of connecting rod, transmission device, mechanical equipment, etc., can solve the problems of complex electrical control, unfavorable installation and maintenance, long time, etc., to achieve easy electrical control, convenient and fast adjustment, and economical to match the effect of time

Inactive Publication Date: 2012-01-18
JINAN CASTING FORGING MACHINERY INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the actual electrical control process, in order to ensure that the two sets of cylinders are in place, a relatively long time needs to be set aside, which will prolong the overall control time when accumulated; at the same time, it is necessary to control the movements of the four cylinders, and the electrical control is complicated, which is not conducive to installation and maintenance. maintain
Moreover, this kind of mechanism composed of lifting cylinder, translation cylinder, and inner and outer connecting rods can only realize two positions, the highest position and the lowest position, and cannot provide a stable intermediate position between the highest position and the lowest position.

Method used

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  • Single-action type variable length connecting rod and crank-connecting rod transmission mechanism
  • Single-action type variable length connecting rod and crank-connecting rod transmission mechanism
  • Single-action type variable length connecting rod and crank-connecting rod transmission mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: single-acting variable-length link mechanism.

[0021] A single-acting variable-length connecting rod, which includes an inner connecting rod 4 and an outer connecting rod 9 that are nested together to form a sliding fit connection. A guide groove is opened on the outer connecting rod 9, and a sliding rod is set in the guide groove. Matched pad 3; the two sides of the inner connecting rod 4 and the pad 3 are respectively provided with connecting plates 25 that hinge the inner connecting rod 4 and the pad 3 together; the outer connecting rod 9 is equipped with a guide cylinder, and the guide cylinder guides The plate 11 and the outer connecting rod 9 are fixed by screws, the guide hole provided on the guide cylinder wall is slidingly matched with the guide short axis on the guide plate of the guide cylinder, and the guide cylinder piston rod 12 is fixed with the spacer 3; the outer link 9 is located on the guide A short-stroke cylinder is installed below th...

Embodiment 2

[0025] Embodiment 2: single-acting crank-link transmission mechanism with variable length of connecting rod.

[0026] The similarities between this embodiment and Embodiment 1 will not be repeated. The difference is that it is a crank-link transmission mechanism, which includes a crankshaft and a single-acting variable-length connecting rod connected thereto.

[0027] Such as figure 1 , 6 As shown, the crankshaft 1 , the single-acting variable-length connecting rod, the pin shaft 5 , the slider 28 and the striking head 30 are located in the casing 31 . The servo motor 17 drives the crankshaft 1 to rotate through the reducer 22 , and the crankshaft 1 rotation can be transformed into the reciprocating motion of the slider 28 in the guide sleeve 29 through the crank linkage mechanism. Through the single-action variable link mechanism, three different heights of the striking head can be easily realized, namely: initial position, middle position and striking position. When the ...

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PUM

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Abstract

The invention relates to a single-action type variable length connecting rod and a crank-connecting rod transmission mechanism, the single-action type variable length connecting rod comprises an inner connecting rod and an outer connecting rod, which are nested together and in sliding fit and connection, and the single-action type variable length connecting rod is characterized in that a guide groove is formed on the outer connecting rod and a cushion block which is in sliding fit with the guide groove is arranged in the guide groove; connecting plates for articulating the inner connecting rod and the cushion block together are respectively arranged on the two sides of the inner connecting rod and the cushion block; a guide cylinder is mounted on the outer connecting rod, a guide plate ofthe guide cylinder is fixed on the outer connecting rod through a screw, a guide hole arranged on the wall of the guide cylinder is in sliding fit with a guide short shaft on the guide plate, and a piston rod of the guide cylinder is fixed with the cushion block; a short stroke cylinder is mounted below the guide cylinder which is positioned on the outer connecting rod, and the connecting plates are used for connecting a cylinder body of the guide cylinder with the piston rod of the short stroke cylinder so as to enable the regulation of the length of the connecting rod to be more convenient and faster and enable the electric control to be easier; and the length of the variable length connecting rod can be adjusted in three positions, namely the initial position, the middle position and the hitting position, so that the variable connecting rod in the structure can be applied more widely.

Description

technical field [0001] The invention relates to a numerical control turret punching machine, in particular to a single-acting variable-length connecting rod and crank connecting rod transmission mechanism. Background technique [0002] The CNC turret punch press is the key equipment for sheet metal stamping. According to the main transmission mode, it can be divided into mechanical type, hydraulic type and servo main transmission type. Among them, the mechanical type and the servo main transmission type can use the crank-link mechanism to convert the rotary motion of the crankshaft driven by the motor into the reciprocating linear motion of the connecting rod. [0003] The servo main transmission mechanism sets the connecting rods in the traditional crank-link transmission mechanism as embedded and telescopic inner and outer connecting rods, which are respectively rigidly connected with the lower support and the upper support. The space is connected by a lifting cylinder; a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D22/02F16C7/06F16H21/18
Inventor 李兵魏志国
Owner JINAN CASTING FORGING MACHINERY INST
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