Toggle lever pressure transmission mechanism

A technology of transmission mechanism and toggle lever, applied in the directions of presses, punching machines, transmission devices, etc., can solve the problems of reducing the driving torque of the motor, occupying a high space, and short working range, achieving high repeat positioning accuracy, improving work efficiency, The effect of improving transmission efficiency

Inactive Publication Date: 2010-07-28
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

2. The force-increasing function of the symmetrical six-bar linkage mechanism is more obvious, which reduces the driving torque of the motor
However, the transmission mechanism of the symmetrical six-bar linkage press has the following problems: 1

Method used

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  • Toggle lever pressure transmission mechanism
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  • Toggle lever pressure transmission mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as figure 1 As shown, the first upper toggle plate 8A is fixed with the first upper beam hinge 12A, the first toggle hinge 14A and the first connecting hinge 13A, and the first upper toggle plate 8A is connected with the frame 17 through the first upper beam hinge 12A ; One end of the first lower toggle 9A is connected to the first upper toggle plate 8A through the first toggle hinge 14A, and the other end of the first lower toggle 9A is connected to the slider 10 through the first slider hinge 15A; the first intermediate link One end of 7A is connected to the first upper toggle plate 8A through the first connecting hinge 13A, and the other end of the first intermediate link 7A is connected to the first driving block 6A through the first driving hinge 11A.

[0028] Symmetrically, the toggle mechanism located on the right side of the vertical center line of the mechanism of the present invention is carrying out a symmetrical movement with the left side. A second up...

Embodiment 2

[0036] Such as figure 2 As shown, in this embodiment, the toggle pressure transmission mechanism replaces the symmetrical two toggle mechanisms in Embodiment 1 with a single toggle mechanism. The specific arrangement is as follows: the upper toggle plate 8 is fixed with an upper beam hinge 12, a toggle hinge 14 and a connecting hinge 13, and the upper toggle plate 8 is connected with the frame 17 through the upper beam hinge 12; one end of the lower toggle 9 is connected with the toggle hinge 14 It is connected with the upper toggle plate 8, and the other end of the lower toggle lever 9 is connected with the slider 10 through the slider hinge 15; one end of the intermediate link 7 is connected with the upper toggle plate 8 through the connecting hinge 13, and the other end of the intermediate link 7 is driven by The hinge 11 is connected with the driving block 6 .

[0037]The driving block 6 is connected with the intermediate connecting rod 7 through the driving hinge 11, an...

Embodiment 3

[0044] Such as image 3 As shown, in this embodiment, the motor 1, the coupling 2, the screw 3, the nut 4, the slideway 5, and the drive block 6 in the second embodiment are replaced by a vertical arrangement instead of a horizontal arrangement. The other components are the same as in the second embodiment, under the drive of the motor 1 and the screw 3, the slider can move up and down along the vertical direction.

[0045] When the connecting hinge 13 is at the farthest horizontal distance from the upper beam hinge 12, the slider 10 is at the top dead center of the stroke. When the slider 10 is at the bottom dead center of the stroke, the straight line passing through the driving hinge 11 and the connecting hinge 13 is in a horizontal state, or the straight line passing through the upper beam hinge 12 and the toggle hinge 14 is in a vertical state, or both states occur simultaneously.

[0046] The line segment connecting the axis of the hinge 12 and the axis of the drive hin...

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PUM

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Abstract

The invention relates to a toggle lever pressure transmission mechanism, belonging to the field of connecting rod transmission mechanisms; the toggle lever pressure transmission mechanism comprises toggle lever mechanisms, a driving block and a sliding block. Each toggle lever mechanism comprises an upper toggle plate, a lower toggle rod and a middle connecting rod. The upper toggle plate is respectively connected with the lower toggle rod, the middle connecting rod and a machine frame through a toggle rod hinge, a connecting hinge and an upper beam hinge, the other end of the lower toggle rod is connected with the sliding block through a sliding block hinge, the other end of the middle connecting rod is connected with the driving block through a driving hinge; in each toggle lever mechanism, a line segment taking axes of the driving hinge and the connecting hinge as the end points, and a straight line passing through the axes of the upper beam hinge and the toggle lever hinge are in the same plane and maintain not to be intersected in the whole working process of the mechanism. Compared with the symmetrical six-bar linkage mechanism, the toggle lever pressure transmission mechanism has good reinforcement effect, relatively-uncomplicated force application of the load bearing shaft, is not easy to be broken and has low mechanism overall height.

Description

technical field [0001] The invention belongs to a connecting rod transmission mechanism, in particular to a pressure transmission mechanism. Background technique [0002] Symmetrical six-bar linkage press (product of Amino (Wuhan) High-Tech Co., Ltd.) is a newly popular plastic processing equipment. Compared with other traditional pressure mechanisms, such as the crank-connecting rod transmission type press (see "<Crank Press", He Deyu, Machinery Industry Press, 1987), the crank toggle transmission type press (see "Mechanical Press") Optimal Design of Toggle-Rod Transmission Mechanism", Zhang Yuantong, Zhu Denglin, "Machinery and Electronics", 2008(1), pp. 10-12), hydraulic transmission press (see "Design and Application of Hydraulic Press", Yu Xinlu, Mechanical Industry Press) and screw drive presses (see J58K series CNC electric screw presses of Wuhan Xinweiqi Technology Co., Ltd.) have certain advantages. It is reflected in: 1. The lateral force of the slider is equa...

Claims

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Application Information

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IPC IPC(8): F16H21/00B30B1/10B29C45/17
CPCB30B1/106
Inventor 莫健华张宜生吕言张正斌杨昊玥
Owner HUAZHONG UNIV OF SCI & TECH
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