CN102241148A - Single-degree-of-freedom nine-rod press with triangular oscillating rod - Google Patents

Abstract

The invention relates to a single-degree-of-freedom nine-bar press with a triangular pendulum. The press includes a first gear, a second gear, a first connecting rod, a second connecting rod, a third connecting rod, and a triangular pendulum , the frame, the hammer connecting rod and the hammer, the first gear and the second gear are respectively connected to the frame through the rotating pair, the first gear and the second gear are meshed with each other, the first connecting rod and the first gear are connected through the rotating pair 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 triangular pendulum is connected to the The frame, the third connecting rod and the hammer connecting rod are connected, and the end of the hammer connecting rod is connected with the punch through a rotating pair, and the punch is in the fixed guide rail. The invention can obtain lower stamping forming speed and longer stop time at the bottom dead center, and solves the problems of poor stamping forming quality and stamping parts springback of traditional mechanical presses; the addition of three pairs of swing rods can make the hammer The pressure working curve is easy to adjust; at the same time, the press has good force transmission characteristics.

Description

Single-degree-of-freedom nine-bar press with triangular pendulum

technical field

The present invention relates to non-cutting metal forming processing equipment, 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. Moreover, this kind of press has poor flexibility and cannot meet the requirements of high-quality stamping operations. 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.

Contents of the invention

The purpose of the present invention is to solve the shortcomings of existing metal forming presses such as poor forming quality, difficulty in suppressing the rebound of stamping parts, and poor "flexibility". The present invention provides a single-degree-of-freedom nine-bar press with a triangular swing bar , the press is driven by a fixed-speed motor, which can obtain a lower stamping forming speed and a longer pause time at the bottom dead center, meeting the requirements of high-quality stamping operations.

The technical solution of the present invention is: a single-degree-of-freedom nine-bar press with a triangular pendulum, the press includes a first gear, a second gear, a first connecting rod, a second connecting rod, and a third connecting rod , triangular pendulum, frame, hammer connecting rod and 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 mesh with each other, the first connecting rod and the first The gears are connected through a rotating pair, the second connecting rod and the second gear are connected 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 triangular pendulum is connected through three The rotating pair is connected with the frame, the third connecting rod and the hammer connecting rod respectively, the end of the hammer connecting rod is connected with the punching hammer through the rotating pair, and the punching hammer is in the fixed guide rail.

The beneficial effects of the present invention are: the present invention can obtain lower stamping forming speed and longer stop time at the bottom dead center, and solve the problems of poor stamping forming quality and springback of stamping parts in traditional mechanical presses; Adding it can make the pressure working curve of the hammer easy to adjust; at the same time, the press has good force transmission 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 present invention shown in Figure 1 is a single-degree-of-freedom nine-bar press with a triangular pendulum. The press includes a first gear 1, a second gear 2, a first connecting rod 3, The second connecting rod 4, the third connecting rod 5, the triangular pendulum 7, the frame 6, the hammer connecting rod 8 and the hammer 9, the first gear 1 and the second gear 2 are respectively connected with the frame 6 through the rotating pair , 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 a rotating pair, the second connecting rod 4 is connected with the second gear 2 through a rotating pair, and the first connecting rod 3 , the second connecting rod 4 and the third connecting rod 5 are connected at the same place through a rotating pair, and the triangular pendulum 7 is respectively connected with the frame 6, the third connecting rod 5 and the hammer connecting rod 8 through three rotating pairs, The end of the hammer connecting rod 8 is connected with the hammer 9 through the rotary pair, and 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 make complex plane movements respectively, the triangular pendulum 7 makes reciprocating swings around the frame 6, and the hammer connecting rod 8 makes a planar movement. 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 hammer 9 are hinged to each other, so the hammer 9 can only punch up and down in the guide rail .

Claims (1)

1. single-degree-of-freedom nine bar forcing presses that contain the triangle fork, described forcing press comprises first gear (1), second gear (2), first connecting rod (3), second connecting rod (4), third connecting rod (5), triangle 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), triangle fork (7) by three revolute pairs respectively with frame (6), third connecting rod (5) is connected 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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