CN102717525A - Knuckle servo press - Google Patents

Abstract

The invention relates to a toggle-type servo press, the press includes a servo motor, a ball screw, a slider, a connecting rod, three pairs of swing rods, a frame, a hammer connecting rod and a hammer, and the The servo motor and the slider are connected through a ball screw pair, one end of the connecting rod is connected with the slider through a rotating pair, and the three nodes of the three pendulum rods are respectively connected with the connecting rod, frame and hammer through the rotating pair. The rods are connected, 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. Using the cooperation of the servo motor and the ball screw, the punching speed and punching position of the punching hammer can be precisely controlled, and the addition of three pairs of swing rods can also make the pressure working curve of the punching hammer more diversified to meet various punching operations requirements.

Description

Knuckle servo press

technical field

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

Background technique

In the field of metal forming processing, especially in sheet metal stamping, forming, and sheet stretching processes, the traditional mechanical press uses a fixed-speed motor as the power source, so that the actuator works with a fixed pressure curve, which cannot be obtained by users. According to the pressure working curve required by different processing techniques, the inherent defect of this kind of press lacks "flexibility" which hinders the further improvement of the stamping process level, and it is difficult to meet the requirements of modern market product diversification, rapid change, and small batches. In recent years, mechanical presses directly driven by servo motors have appeared, such as connecting rod presses from Amino Corporation in Japan, Komatsu HF series presses in Japan, and presses from Qiqihar Second Machine Tool Group. The press is basically the same, only the ordinary motor is replaced by a servo motor, and the speed characteristics and dynamic performance of the slider can be improved by adjusting the input of the servo motor. Since this kind of press does not use a flywheel, all the energy is provided by the servo motor during stamping. When 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 is very high.

Contents of the invention

The purpose of the present invention is to solve the deficiencies such as "flexibility" difference existing in the existing metal forming presses. The present invention provides a toggle servo press, which is driven by a servo motor and can realize the control of the position and speed of the hammer. Adjustment, the press can provide complex motion output rules according to different pressure processing techniques to meet the requirements of various stamping operations.

The technical solution of the present invention is: a toggle servo press, the press includes a servo motor, a ball screw, a slider, a connecting rod, three pairs of swing rods, a frame, a hammer connecting rod and a hammer , the servo motor and the slider are connected through a ball screw pair, one end of the connecting rod is connected with the slider through a rotating pair, and the three nodes of the three pairs of swing rods are respectively connected to the connecting rod and the frame through the rotating pair , The impact hammer connecting rod is connected, the end of the impact hammer connecting rod is connected with the impact hammer through the rotating pair, and the impact hammer is in the fixed guide rail.

The beneficial effects of the present invention are: the present invention uses the cooperation of the servo motor and the ball screw to precisely control the punching speed and the punching position of the punching hammer, and the addition of three pairs of pendulum rods can also make the pressure working curve of the punching hammer more precise. At the same time, the structure of the press is simple and compact, and the cost is low. As long as an appropriate die is installed on the press, processes such as punching, blanking, bending, forming, drawing and fine pressing can be completed.

Description of drawings

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

Detailed ways

As shown in Figure 1, a specific embodiment of the present invention is a toggle servo press, and the press includes a servo motor 1, a ball screw 2, a slider 3, a connecting rod 4, and three pairs of swing links 6 , the frame 5, the hammer connecting rod 7 and the hammer 8, the servo motor 1 and the slider 3 are connected through the ball screw pair 2, and one end of the connecting rod 4 is connected with the slider 3 through the rotating pair , the three nodes of the three pendulum rods 6 are respectively connected with the connecting rod 4, the frame 5, and the hammer connecting rod 7 through the rotating pair, and the end of the hammer connecting rod 7 is connected with the punching hammer 8 through the rotating pair, and the punching hammer 8 is in the fixed guide rail.

When working, the ball screw pair 2 is used to convert the rotational motion of the servo motor 1 into a linear motion, thereby driving the slider 3 to move in the vertical direction, the connecting rod 4 to perform complex plane motion, and the triangular pendulum 6 to move around the frame 5 Reciprocating swing, under the action of the triangular pendulum 6, the hammer connecting rod 7 makes a complex plane movement. During this process, the hammer 8 also starts to move under the action of the hammer connecting rod 7. limit, and the hammer connecting rod 7 and the hammer 8 are hinged to each other, so the hammer 8 can only punch up and down in the guide rail.

Claims (1)

1. A toggle-type servo press, characterized in that: the press includes a servo motor (1), a ball screw (2), a slide block (3), a connecting rod (4), and three pairs of swing rods (6), frame (5), hammer connecting rod (7) and hammer (8), the servo motor (1) is connected with the slider (3) through a ball screw pair (2) , one end of the connecting rod (4) is connected with the slider (3) through a rotating pair, and the three nodes of the three pendulum rods (6) are respectively connected with the connecting rod (4), the frame (5), and the hammer through the rotating pair The connecting rod (7) is connected, and the end of the hammer connecting rod (7) is connected with the hammer (8) through a rotating pair, and the hammer (8) is in the fixed guide rail.

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