Servo main transmission device for novel numerical control turret punch press

Abstract

The invention discloses a servo main transmission device for a novel numerical control turret punch press, and relates to a punch press, in particular to a multi-die head numerical control machining punch press. The servo main transmission device can adapt to production enterprises of various large scales, has high control precision, high capacity ratio and high station number expansion flexibility. The punch press comprises a controller, a machine body and a punching head, wherein the punching head is connected with the machine body through a positive-negative screw drive mechanism; the positive-negative screw drive mechanism comprises a screw, a first nut, a second nut, a first drive motor and a second drive motor, wherein the screw is provided with a positive thread and a negative thread; the first nut and the second nut are respectively connected with the positive thread and the negative thread movably; the first drive motor and the second drive motor drive the first nut and the second nut to perform forward and reverse rotation; the punching head is fixed to the bottom end of the screw; the first nut and the second nut are connected with the machine body movably; only the rotation freedom degrees of the first nut and the second nut around the axes per se are remained; and the first drive motor and the second drive motor are respectively connected with the controller. In the servo main transmission device for the novel numerical control turret punch press, the structure is simple, a servo control ratio mechanism is simple and is easy to realize, the precision is high, the device has no eccentric inertia load, the problem about dynamic balance does not needs to be considered, the running is balance, and the vibration is small.

Description

technical field [0001] The invention relates to a punching machine, in particular to a multi-die CNC machining punching machine. Background technique [0002] High-efficiency plate processing CNC turret punch presses have been widely popularized. The turret punch press has the characteristics of fast processing speed, high precision and strong adaptability. At present, the punch of the existing turret punch generally has the following drive modes: hydraulic / pneumatic drive, mechanical drive. Among them, the mechanical drive mode has a variety of structural forms, such as: crankshaft-connecting rod type, connecting rod slider type, etc.; due to many moving links, there are eccentric loads and difficult dynamic balance control, which leads to low energy efficiency. The hydraulic / pneumatic drive mode has the problems of low energy efficiency and short service life. [0003] A common feature in the prior art is that all driving modes only output reciprocating motion in the ve...

AI Technical Summary

Problems solved by technology

Among them, the mechanical drive mode has a variety of structural forms, such as: crankshaft-connecting rod type, connecting rod slider type, etc.; due to many moving links, there are eccentric loads and dynamic balance control is difficult, which leads to the problem of low energy efficiency.

Among them, the hydraulic / pneumatic drive mode has the problems of low energy efficiency and short service life

[0003] The common feature that still exists in the prior art is: all driving modes only output the reciprocating motion in the vertical direction

[0004] In addition, for small-scale production enterprises, the price of CNC turret punch presses is relatively expensive, and this large-scale production enterprise only needs to use a small amount of the "automatic position change" function in specific production.

Images