CN205853394U - A kind of symmetric double inner slide forcing press drive mechanism - Google Patents

Abstract

The utility model proposes a symmetrical double inner slider pressure transmission mechanism, which includes a crank, three connecting rods, two inner sliders and a stamping slider; the symmetrical double inner slider pressure transmission mechanism adopts a sinusoidal The mechanism utilizes the movement of the inner slider and the stamping slider to realize the stamping of the punching machine. On the basis of adding three connecting rods and an inner slider, there are two vertical and horizontal connections between the stamping slider and the inner slider at each moment. The symmetrical contact point of the straight central axis ensures that it can keep rising and falling smoothly at every moment, and improves the dynamic performance of the stamping mechanism.

Description

A Transmission Mechanism of a Symmetrical Double Internal Slider Press

Technical field

The utility model provides a symmetrical double inner slide block press transmission mechanism, which relates to the technical field of press structures.

Background technique

The high-speed press does not need manual feeding when it works, but automatically feeds raw materials or semi-finished products into the mold for processing. It has the characteristics of high efficiency, automaticity and high precision, so it has been more and more widely used. Compared with ordinary presses, fast presses have higher requirements in design and manufacture. Not only must they have good static performance (ie, strength, stiffness), but also the dynamic performance of the equipment has become an important component of its overall performance, so The traditional static design and empirical design can no longer fully meet the engineering requirements of fast presses.

The slider crank mechanism is the main type in the working mechanism of the crank press. This mechanism changes the rotary motion into a reciprocating motion and directly bears the deformation force of the workpiece. It represents the main features of the crank press and is the basis for designing the crank press.

Utility model content

Purpose of the invention: aim at the deficiencies of the existing technology, make up for the defects of the traditional static design and empirical design, and improve the dynamic performance of the high-speed stamping machine.

Technical solution: The crank makes a circular motion around the axis, and one end of the connecting rod is connected with the left inner slider. The movement is transmitted to the inner slider on the right through the connecting rods 2 and 3, so that the rod 4 makes a circular motion opposite to the symmetrical rotation of 1, and the crank rotates under the drive of the motor. The inner slider is nested with the crank through the sliding bearing, and then The crank rotates, and at the same time, the inner slider is connected with the chute of the stamping slider through the ball rolling block, and moves horizontally in the chute. Driven by the inner slider, the stamping slider can only reciprocate up and down in the guide rail, and transmit this movement to the slider of the press through the guide post connected to it to realize the stamping process of the press.

To further improve the above-mentioned technical solution, the two inner sliders are symmetrical about the vertical central axis at each moment and the two inner sliders move in the opposite direction at a constant speed in the inner groove of the stamping slider.

Further, a hinge is used between the slider and the connecting rod, and between the connecting rod and the connecting rod.

Further, the power of the punching slider is provided by two inner sliders at the same time, and the punching slider and the sliding groove form a sliding pair.

Beneficial effect:

1. The dynamic performance is improved. This design first uses the crank slider mechanism to realize the conversion and decomposition of the crankshaft rotation and the reciprocating linear motion of the press slider, so that the bottom transmission press has good operation stability.

2. The volume of the press is reduced, and the double-slider mechanism replaces the traditional crank-slider mechanism, which compresses the internal size of the press.

3. The balance is enhanced. By adding a slider, the balance and stability of the whole mechanism have been enhanced. At the same time, the speed of the bottom dead center can be controlled to improve the stamping accuracy.

Description of drawings

Figure 1 is a schematic diagram of the movement of the symmetrical double inner slide block press transmission mechanism: 1, crank, 2,, 3, 4 connecting rods, A, C inner slide blocks, 5, stamping slide blocks.

detailed description

The technical scheme of the utility model is described in detail below by means of the accompanying drawings.

The crank 1 makes a circular motion around 0, and is connected with the inner slider A at one end of the connecting rod. The connecting rods 2 and 3 transmit the motion to the inner slider C so that the rod 4 makes a circular motion opposite to the symmetrical rotation of 1, which solves the possibility that a slider of the original mechanism has only one contact point during the sliding process. Unbalanced shaking, because the two sliders A and C are symmetrical about the vertical central axis at every moment.

The crank rotates under the drive of the motor, and the inner slider is nested with the crank through the sliding bearing, and rotates with the crank. Movement in the horizontal direction. Driven by the inner slider, the stamping slider can only reciprocate up and down in the guide rail, and transmit this movement to the slider of the press through the guide post connected to it to realize the stamping process of the press.

Claims (5)

1. A symmetrical double inner slider press transmission mechanism, comprising a crank, three connecting rods, two inner sliders and a stamping slider; it is characterized in that: one end of the crank (1) is connected to the frame (O) Hinge connection, the other end is hingedly connected with the first inner slider (A); one end of the first connecting rod (2) is hingedly connected with the first inner slider (A), and the other end is hingedly connected with the second connecting rod (3); The second connecting rod (3) is hinged with the second inner slider (C); one end of the third connecting rod (4) is hingedly connected with the frame (O), and the other end is connected with the frame (O) and the crank (1 ) hinged connection; the two inner sliders slide in the stamping slider (5); the stamping slider (5) is powered by the crank (1) in the chute to perform rotational movement, driving the first inner slider (A) Sliding left and right, so that the movement is transmitted to the second inner slider (C) through the first connecting rod (2) and the second connecting rod (3), and finally the stamping slider moves up and down to complete stamping. 2. The transmission mechanism of the symmetrical double inner slide block press according to claim 1, characterized in that: the symmetrical double slide block pressure transmission mechanism is based on the original sinusoidal mechanism using the movement of the inner slide block and stamping slide block On the basis of realizing the stamping of the stamping machine, three connecting rods and an inner slider are added, so that at each moment, the stamping slider and the inner slider have two contact points symmetrical about the vertical central axis in the horizontal direction. 3. The symmetrical double inner slide block press transmission mechanism according to claim 1 or claim 2, characterized in that: the first inner slide block (A) and the second inner slide block (C) are Symmetrically distributed, the two inner sliders and the stamping slider (5) constitute a moving pair, and among the two inner sliders, the first inner slider (A) and the second (C) are both followers, and the first inner slider The slider (A) is powered by the crank (1), the second inner slider (C) is driven by the first connecting rod (2), the second connecting rod (3) and the stamping slider (5), and the two inner sliders The blocks do constant and inverse motion. 4. The transmission mechanism of symmetrical double inner slide block press according to claim 1, characterized in that: among the connecting rods: the first connecting rod (2) and the second connecting rod (3) are the second inner sliding blocks The block (C) provides power, and the second connecting rod (3) and the third connecting rod (4) are for the dynamic balance of the stamping slider (5) reciprocating up and down simultaneously. 5. The symmetrical double inner slide block press transmission mechanism according to claim 1 or claim 2, characterized in that: the power of the stamping slide block (5) is driven by the first inner slide block (A), the second inner slide block The slider (C) is provided at the same time, and the stamped slider and the chute form a sliding pair.