CN202062674U - Two-freedom-degree nine-rod mechanical press - Google Patents

Abstract

The utility model relates to a two-degree-of-freedom nine-bar mechanical press, which comprises a first crank, a second crank, a first connecting rod, a second connecting rod, a third connecting rod, a frame, a swing rod, The connecting rod of the hammer and the hammer, the first crank and the second crank are respectively connected with the frame through the rotating pair; the first crank and the second crank are both connected with the fixed speed motor, and are respectively driven by two different fixed speed motors The first crank and the second crank rotate; the first connecting rod is connected with the first crank through a rotating pair, the second connecting rod is connected with the second crank through a rotating pair, and the first connecting rod, the second connecting rod and the third connecting rod The rods are connected at the same point through a rotating pair; the swing rod is connected with the frame through a rotating pair; the swing rod, the third connecting rod and the hammer connecting rod are connected at the same point through a rotating pair; The vice is connected with the hammer, and the hammer is in the fixed guide rail. The utility model can obtain lower stamping forming speed, more diversified hammer pressure working curve and longer stop time at the bottom dead point, and solves the problems of poor stamping forming quality and stamping parts springback of traditional mechanical presses; at the same time , The press has good force transmission characteristics.

Description

Two-degree-of-freedom nine-bar mechanical press

technical field

The utility model relates to metal forming processing equipment without cutting, in particular to a mechanical press.

Background technique

In the field of metal forming processing, especially in sheet metal stamping, forming, and sheet drawing processes, mechanical presses are one of the main processing equipment. The traditional mechanical press cannot obtain the pressure working curve required by the user according to different processing techniques. This kind of press lacks the inherent defect of "flexibility" which hinders the further improvement of the stamping process level, so it is difficult to meet the requirements of modern market product diversification and rapid change. , Small batch requirements. In recent years, there have been servo presses, such as connecting rod presses from Amino Corporation in Japan, Komatsu HF series presses in Japan, double toggle presses from Ohio State University in the United States, and presses from Qiqihar Second Machine Tool Group. The input of the servo motor can improve the speed characteristics and dynamic performance of the slider. If a large-tonnage press is required, a high-power servo motor is required, but the high-power servo motor is very expensive, so the manufacturing cost of this press high.

Utility model content

The purpose of this utility model is to provide a two-degree-of-freedom nine-bar mechanical press for the problems of poor molding quality, difficulty in suppressing the springback of stamping parts, poor "flexibility" and high cost in existing metal forming presses. , the press is driven by two fixed-speed motors, which can obtain lower stamping forming speed, more diversified hammer pressure working curve and longer stop time at the bottom dead center, meeting the requirements of high-quality stamping operations.

The technical solution of the utility model is: a two-degree-of-freedom nine-bar mechanical press, which includes a first crank, a second crank, a first connecting rod, a second connecting rod, a third connecting rod, and a frame , pendulum rod, hammer connecting rod and hammer, the first crank and the second crank are respectively connected with the frame through the revolving pair; The fixed speed motor drives the first crank and the second crank to rotate; the first connecting rod and the first crank are connected through a rotating pair, the second connecting rod is connected with the second crank through a rotating pair, and the first connecting rod and the second connecting rod It is connected with the third connecting rod at the same point through a rotating pair; the swing rod is connected with the frame through a rotating pair, and the swing rod, the third connecting rod and the impact hammer connecting rod are connected at the same point through a rotating pair, and the impact hammer connecting rod The end of the hammer is connected with the hammer through the rotating pair, and the hammer is in the fixed guide rail.

The beneficial effects of the utility model are: lower stamping forming speed, more diversified hammer pressure working curve and longer stop time at the bottom dead center can be obtained, which solves the problem of poor stamping forming quality of traditional mechanical presses, and the return of stamping parts. At the same time, the press has good force transmission characteristics.

Description of drawings

Fig. 1 is the structural representation of the specific embodiment of the utility model.

Detailed ways

The specific embodiment of the utility model shown in Figure 1 is a two-degree-of-freedom nine-bar mechanical press, which includes a first crank 1, a second crank 2, a first connecting rod 3, a second connecting rod Rod 4, third connecting rod 5, frame 6, swing rod 7, impact hammer connecting rod 8 and impact hammer 9, the first crank 1 and the second crank 2 are respectively connected with the frame 6 through a rotating pair; the first crank 1 and the second crank 2 are respectively connected with constant speed motors, and the first crank 1 and the second crank 2 are driven to rotate by two different constant speed motors respectively; connection, the second connecting rod 4 is connected with the second crank 2 through the rotating pair, and the first connecting rod 3, the second connecting rod 4 and the third connecting rod 5 are connected at the same point through the rotating pair; the swing rod 7 is connected with the frame 6 are connected by a rotating pair, the pendulum 7, the third connecting rod 5 and the hammer connecting rod 8 are connected at the same point by a rotating pair, the end of the hammer connecting rod 8 is connected with the hammer 9 through a rotating pair, and the hammer 9 is in the fixed guide rail.

When working, the first crank 1 and the second crank 2 are driven by two different fixed-speed motors to rotate respectively, the first crank 1 drives the first connecting rod 3 to perform plane movement, and the second crank 2 drives the second connecting rod 4. Plane movement; under the joint action of the first link 3 and the second link 4, the third link 5 performs planar movement; under the action of the third link 5, the pendulum 7 reciprocates around the frame 6 Swing, the hammer connecting rod 8 does complex plane movement; during this process, the hammer 9 also starts to move under the action of the hammer connecting rod 8, because it is limited by the horizontal direction of the guide rail, and the hammer connecting rod 8 and the Punch hammer 9 is mutually hinged again, so punch hammer 9 can only punch up and down in the guide rail.

Claims (1)

1. a two-degree-of-freedom nine-bar mechanical press is characterized in that: said press comprises a first crank (1), a second crank (2), a first connecting rod (3), a second connecting rod ( 4), the third connecting rod (5), the frame (6), the swing rod (7), the hammer connecting rod (8) and the hammer (9), the first crank (1) and the second crank (2) They are respectively connected with the frame (6) through the revolving pair; the first crank (1) and the second crank (2) are respectively connected with the fixed-speed motors, and the first crank (1) is driven by two different fixed-speed motors respectively. ) and the second crank (2) rotate; the first connecting rod (3) is connected with the first crank (1) through a rotary pair, and the second connecting rod (4) is connected with the second crank (2) through a rotary pair, The first connecting rod (3), the second connecting rod (4) and the third connecting rod (5) are connected at the same point through a rotating pair; the swing rod (7) is connected with the frame (6) through a rotating pair, and the swing The rod (7), the third connecting rod (5) and the hammer connecting rod (8) are connected at the same point through a rotary joint, and the end of the hammer connecting rod (8) is connected with the hammer (9) through a rotary joint, Punch hammer (9) is in fixed guide rail.

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