CN102729505A - Duplex toggle link mechanical press - Google Patents

Abstract

The invention relates to a double toggle mechanical press, which includes a frame, two sets of left and right toggle mechanisms consisting of two eccentric gears with the same number of teeth and the same modulus, and two identical connecting rod branch chains. and the impact hammer, the frame and the impact hammer are connected by two sets of the same left and right toggle mechanisms; the left and right toggle mechanisms are symmetrically distributed on both sides of the frame, and the eccentric gears in the left and right toggle mechanisms mesh with each other; each set of toggle The eccentric gear of the mechanism is connected to the frame through a rotating pair, and the eccentric gear is connected to the connecting rod through a rotating pair. The connecting rod, upper toggle and lower toggle are connected at the same place with a rotating pair, and the upper toggle is connected to the frame through a rotating pair , the lower connecting rod is connected with the hammer through the rotating pair; the hammer is in the fixed guide rail and connected with the frame through the moving pair. Using a high-power fixed-speed motor to simultaneously drive two sets of the same toggle mechanism can make the hammer have high efficiency, large tonnage and flexible working characteristics.

Description

Double toggle mechanical press

technical field

The invention relates to non-cutting metal forming processing equipment, in particular to a double toggle mechanical press.

Background technique

Mechanical press is an important metal forming processing equipment. It has the characteristics of high working efficiency, good working environment and convenient maintenance. It is widely used in industrial production. The working mechanism of the traditional mechanical press is a crank-slider mechanism. The hammer speed of this kind of press is too high during the deformation stage of the workpiece, which cannot meet the requirements of high-quality stamping operations. At present, in order to reduce the working speed of the hammer and improve the working performance of the mechanical press, servo presses and hybrid drive presses have appeared. The servo press can improve the processing quality of the workpiece and expand the processing range of the press, but because the servo motor is very expensive, the manufacturing cost of this press is very high. The hybrid drive press uses a servo motor and a common motor to jointly drive the link mechanism. The common motor provides the main kinetic energy, and the servo motor realizes the adjustment of the position and speed of the hammer. However, this kind of press still has the excessive speed adjustment of the slider Therefore, it is difficult to meet the requirements for the working speed of the hammer in processing.

Contents of the invention

The purpose of the present invention is to solve the above-mentioned shortcomings of the existing metal forming presses, such as high cost, difficult adjustment of the working speed of the slider, and poor working performance. The present invention provides a double toggle mechanical press, which consists of a large The fixed-power fixed-speed motor drives two sets of the same toggle mechanism at the same time, which enables the hammer to have high efficiency, large tonnage and flexible working characteristics.

The technical solution of the present invention is: a double toggle mechanical press, the press includes a frame, a right toggle mechanism consisting of an eccentric gear and a connecting rod, an upper toggle and a lower toggle, and a right toggle mechanism consisting of an eccentric gear and a The connecting rod and the left toggle mechanism composed of the upper toggle and the lower toggle and the impact hammer are connected by two sets of the same left and right toggle mechanisms between the frame and the impact hammer; the left and right toggle mechanisms are symmetrically distributed on both sides of the frame ; The eccentric gear in the right toggle mechanism and the eccentric gear in the left toggle mechanism mesh with each other; the eccentric gear of the right toggle mechanism is connected with the frame through the rotating pair, and the eccentric gear is connected with the connecting rod through the rotating pair. The toggle link and the lower toggle link are connected at the same place with a rotary pair, the upper toggle link is connected with the frame through a rotary pair, the lower link is connected with the hammer through a rotary pair; the eccentric gear of the left toggle mechanism is connected with the frame through a rotary pair , the eccentric gear is connected with the connecting rod through the rotating pair, the connecting rod, the upper toggle and the lower toggle are connected at the same place with the rotating pair, the upper toggle is connected with the frame through the rotating pair, and the lower connecting rod is connected with the hammer through the rotating pair ; The hammer is in the fixed guide rail and connected with the frame through the moving pair.

The beneficial effects of the present invention are: the present invention utilizes a high-power fixed-speed motor to simultaneously drive two sets of the same toggle mechanism, so that the hammer has high efficiency, large tonnage and flexible working characteristics.

Description of drawings

Fig. 1 is a schematic structural diagram of a specific embodiment of the present invention.

Detailed ways

The specific embodiment of the invention shown in Figure 1 is a double toggle mechanical press, which includes a frame 2, an eccentric gear 1, a connecting rod 3, an upper toggle 4 and a lower toggle 5. The right toggle mechanism, the left toggle mechanism composed of the eccentric gear 7 and the connecting rod 8, the upper toggle 9 and the lower toggle 10, and the impact hammer 6, between the frame 2 and the impact hammer 6 through two sets of the same left and right The toggle mechanism is connected; the left and right toggle mechanisms are symmetrically distributed on both sides of the frame 2; the eccentric gear 1 in the right toggle mechanism and the eccentric gear 7 in the left toggle mechanism mesh with each other; the eccentric gear 1 of the right toggle mechanism passes through The rotating pair is connected with the frame 2, the eccentric gear 1 is connected with the connecting rod 3 through the rotating pair, the connecting rod 3, the upper toggle 4 and the lower toggle 5 are connected with the rotating pair at the same place, and the upper toggle 4 is connected with the machine through the rotating pair. The frame 2 is connected, and the lower link 5 is connected with the hammer 6 through the rotary pair; the eccentric gear 7 of the left toggle mechanism is connected with the frame 2 through the rotary pair, and the eccentric gear 7 is connected with the connecting rod 8 through the rotary pair, and the connecting rod 8, The upper toggle 9 and the lower toggle 10 are connected at the same place with a rotary pair, the upper toggle 9 is connected with the frame 2 through the rotary pair, and the lower link 10 is connected with the hammer 6 through the rotary pair; the hammer 6 is on the fixed guide rail Inside, it is connected with rack 2 through a mobile pair.

When working, the eccentric gear 1 rotates under the drive of the high-power fixed-speed motor to provide kinetic energy for the press. Under the action of the rotation of the eccentric gear 1, the eccentric gear 7 rotates in the opposite direction to the eccentric gear 1. Driven by the eccentric gear 1, the connecting rod 3, the upper toggle 4, and the lower toggle 5 perform plane motion, fixed-axis swing, and plane motion respectively; driven by the eccentric gear 7, the connecting rod 8, the upper toggle 9, and the lower toggle The toggle lever 10 performs plane movement, fixed-axis swing and plane movement respectively; during this process, the impact hammer 6 also starts to move under the joint action of the lower link 5 and the lower link 10, because it is limited by the horizontal direction of the guide rail, and The lower connecting rod 5 and the lower connecting rod 10 are hinged to each other again with the punch hammer 6, so the punch hammer 6 can only punch up and down in the guide rail.

Claims (1)

1. duplex bar punching machine; It is characterized in that: connect through the identical left and right sides elbow-bar mechanism of two covers between the right elbow-bar mechanism that described forcing press comprises frame (2), be made up of eccentric gear (1) and connecting rod (3) and upper elbow lever (4) and lower elbow lever (5), left elbow-bar mechanism and the block stamp (6) formed by eccentric gear (7) and connecting rod (8) and upper elbow lever (9) and lower elbow lever (10), frame (2) and block stamp (6); Left and right sides elbow-bar mechanism is symmetrically distributed in the both sides of frame (2); Eccentric gear (1) in the right elbow-bar mechanism and the eccentric gear (7) in the left elbow-bar mechanism are meshing with each other; The eccentric gear (1) of right elbow-bar mechanism is connected with frame (2) through revolute pair; Eccentric gear (1) is connected with connecting rod (3) through revolute pair; Connecting rod (3), upper elbow lever (4) and lower elbow lever (5) are connected in the same revolute pair of sentencing; Upper elbow lever (4) is connected with frame (2) through revolute pair, and lower link (5) is connected with block stamp (6) through revolute pair; The eccentric gear (7) of left side elbow-bar mechanism is connected with frame (2) through revolute pair; Eccentric gear (7) is connected with connecting rod (8) through revolute pair; Connecting rod (8), upper elbow lever (9) and lower elbow lever (10) are connected in the same revolute pair of sentencing; Upper elbow lever (9) is connected with frame (2) through revolute pair, and lower link (10) is connected with block stamp (6) through revolute pair; Block stamp (6) is within the fixed guide, links to each other through moving sets with frame (2).

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