CN202088491U - Single-freedom-degree nine-rod mechanical press - Google Patents

Abstract

The utility model relates to a nine-bar mechanical press with a single degree of freedom. The press comprises a first gear, a second gear, a first connecting rod, a second connecting rod, a third connecting rod, a swing rod, a frame, The hammer connecting rod and the hammer, the first gear and the second gear are respectively connected with the frame through the rotating pair, the first gear and the second gear are meshed with each other, the first connecting rod is connected with the first gear through the rotating pair, and the second The second connecting rod is connected with the second gear through a rotating pair, the first connecting rod, the second connecting rod and the third connecting rod are connected at the same place through a rotating pair, and the third connecting rod, the swing rod and the hammer connecting rod are connected at the same place. The end of the hammer connecting rod is connected with the hammer through the rotating pair, and the hammer is in the fixed guide rail. The utility model can obtain a lower stamping speed and a longer stop time at the bottom dead center, and solves the problems of poor stamping quality and springback of stamping parts in traditional mechanical presses; at the same time, the press has good force transmission characteristics .

Description

Single 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. However, the traditional mechanical press cannot effectively control the stamping forming speed, and it is difficult to avoid the springback phenomenon of stamping parts. In recent years, servo presses have appeared, 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 speed characteristics and dynamic performance of the slider are improved, and a variety of different pressure working curves are obtained, but the manufacturing cost is relatively high.

Utility model content

The purpose of the utility model is to solve the shortcomings of existing metal forming presses such as poor molding quality and difficulty in suppressing the rebound of stamping parts. The utility model provides a single-degree-of-freedom nine-bar mechanical press. Driven by a motor, it can obtain a lower stamping forming speed and a longer stop time at the bottom dead center, which meets the requirements of high-quality stamping operations.

The technical solution of the utility model is: a single-degree-of-freedom nine-bar mechanical press, which includes a first gear 1, a second gear 2, a first connecting rod 3, a second connecting rod 4, a third connecting rod Rod 5, swing rod 7, frame 6, hammer connecting rod 8 and hammer 9, the first gear 1 and the second gear 2 are connected with the frame 6 through the rotating pair respectively, the first gear 1 and the second gear 2 Mesh with each other, the first connecting rod 3 is connected with the first gear 1 through the rotating pair, the second connecting rod 4 is connected with the second gear 2 through the rotating pair, the first connecting rod 3, the second connecting rod 4 and the third connecting rod The rod 5 is connected at the same place through a rotating pair, the third connecting rod 5, the swing rod 7 and the hammer connecting rod 8 are connected at the same place through a rotating pair, and the end of the hammer connecting rod 8 is connected with the hammer 9 through a rotating pair Connected, the hammer 9 is in the fixed guide rail.

When working, the first gear 1 rotates under the drive of the fixed-speed motor, and the second gear 2 rotates under the drive of the first gear 1. Under the action of the first gear 1 and the second gear 2, the second gear The first connecting rod 3, the second connecting rod 4 and the third connecting rod 5 respectively make complex plane movements, the pendulum 7 swings back and forth around the frame 6, and the hammer connecting rod 8 makes plane movements. During this process, the hammer 9 also begins to move under the effect of ram connecting rod 8, owing to be subjected to the horizontal direction limit of guide rail, and ram connecting rod 8 and ram 9 are mutually hinged again, so ram 9 can only punch up and down in the guide rail.

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 nine-bar mechanical press with a single degree of freedom. The press includes a first gear 1, a second gear 2, a first connecting rod 3, a second connecting rod Rod 4, third connecting rod 5, pendulum 7, frame 6, impact hammer connecting rod 8 and impact hammer 9, first gear 1 and second gear 2 are connected with frame 6 through rotating pair respectively, first gear 1 and the second gear 2 are meshed with each other, the first connecting rod 3 is connected with the first gear 1 through a rotating pair, the second connecting rod 4 is connected with the second gear 2 through a rotating pair, the first connecting rod 3, the second connecting rod The rod 4 and the third connecting rod 5 are connected at the same place through a rotating pair, the third connecting rod 5, the swing rod 7 and the hammer connecting rod 8 are connected at the same place through a rotating pair, and the end of the hammer connecting rod 8 is connected by rotating The pair is connected with the punching hammer 9, and the punching hammer 9 is in the fixed guide rail.

When working, the first gear 1 rotates under the drive of the fixed-speed motor, and the second gear 2 rotates under the drive of the first gear 1. Under the action of the first gear 1 and the second gear 2, the second gear The first connecting rod 3, the second connecting rod 4 and the third connecting rod 5 respectively make complex plane movements, the pendulum 7 swings back and forth around the frame 6, and the hammer connecting rod 8 makes plane movements. During this process, the hammer 9 also begins to move under the effect of ram connecting rod 8, owing to be subjected to the horizontal direction limit of guide rail, and ram connecting rod 8 and ram 9 are mutually hinged again, so ram 9 can only punch up and down in the guide rail.

Claims (1)

1. single-degree-of-freedom nine bar punching machines, it is characterized in that: described forcing press comprises first gear (1), second gear (2), first connecting rod (3), second connecting rod (4), third connecting rod (5), fork (7), frame (6), block stamp connecting rod (8) and block stamp (9), first gear (1) is connected with frame (6) by revolute pair respectively with second gear (2), first gear (1) and second gear (2) are meshing with each other, first connecting rod (3) is connected by revolute pair with first gear (1), second connecting rod (4) is connected by revolute pair with second gear (2), first connecting rod (3), second connecting rod (4) is connected by revolute pair at same place with third connecting rod (5), third connecting rod (5), fork (7) is connected by revolute pair at same place with block stamp connecting rod (8), the end of block stamp connecting rod (8) is connected with block stamp (9) by revolute pair, and block stamp (9) is within the fixed guide.

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