Drive structure of ball screw of injection molding machine

A ball screw, drive structure technology, applied in the direction of structural connection, electromechanical devices, electric components, etc., can solve the problems of high maintenance cost, high energy consumption, belt flexibility and energy loss, etc., to achieve simple and compact structure, transmission synchronization Good and high installation accuracy

Inactive Publication Date: 2015-03-25
NINGBO CHUANGJI MACHINERY
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  • Description
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  • Application Information

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Problems solved by technology

At present, most injection molding machines in China are hydraulic transmission injection molding machines, which consume high energy consumption; with the maturity of servo motor technology and the needs of environmental protection and energy saving, the advent of all-electric injection molding machines has completely abandoned the full hydraulic oil pump in the power drive system. The oil pressure drive system generated by the motor is directly driven by a servo motor, and the transmission structure uses a ball screw and a synchronous belt. Although the

Method used

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  • Drive structure of ball screw of injection molding machine

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Example Embodiment

[0010] The present invention will be described in further detail below in conjunction with the embodiments of the drawings.

[0011] Such as figure 1 As shown, the driving structure of the ball screw of the injection molding machine of this embodiment includes the ball screw 1, the motor 2, the mounting seat 3 of the ball screw, the bearing seat 4, the encoder 10 and the sensor 31, etc., and the ball screw 1 supports In the mounting seat 3, the sensor 31 is arranged on the mounting seat 3. The motor 2 includes a motor housing 23, a rotor 22 and a stator 21. One end of the rotor 22 is equipped with a bearing 5, and the bearing 5 is fixed in the bearing seat 4 through a bearing plate 6 , The bearing seat 4 is coaxially and fixedly connected with the mounting seat 3 of the ball screw 1, and one end of the ball screw 1 passes through the bearing seat 4 and is connected to the motor 2 by spline connection; the spline is made of mutually matched internal flowers The key 7 and the oute...

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Abstract

The invention relates to a drive structure of a ball screw of an injection molding machine. The drive structure comprising a ball screw and a motor is characterized in that a bearing is installed at one end of a rotor of the motor and is fixed at a bearing seat by a bearing pressing plate; the bearing seat is fixedly connected with a mounting seat of the ball screw; and one end of the ball screw passes through the bearing seat and is in transmission connection with the motor in a spline connection mode. A synchronous belt and a coupler are removed, the motor and the ball screw are transmitted based on the spline connection, and the radial force is carried by the bearing seat. And the high mounting precision is guaranteed. The internal spline is used for transmitting the torque; the screw rod of 3 screw channels with 45-degree rectangular teeth is used for transmission; and the lead of the screw rod is increased. Moreover, the structure is simple and compact; the mounting precision is high; the transmission synchronous performance is good; an identical effect of the elastic coupler connection can be realized; directly-driven ball screw motion can be realized; maintenance is not required; and the cost is saved.

Description

technical field [0001] The invention relates to a driving structure of a ball screw of an injection molding machine. Background technique [0002] Ball screw is a transmission actuator that converts rotary motion into linear motion. It is widely used in various industrial equipment and precision instruments due to its advantages of high transmission accuracy, high efficiency and low frictional resistance. At present, most injection molding machines in China are hydraulic transmission injection molding machines, which consume high energy consumption; with the maturity of servo motor technology and the needs of environmental protection and energy saving, the advent of all-electric injection molding machines has completely abandoned the full hydraulic oil pump in the power drive system. The oil pressure drive system generated by the motor is directly driven by a servo motor, and the transmission structure uses a ball screw and a synchronous belt. Although the control accuracy o...

Claims

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Application Information

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IPC IPC(8): H02K7/10H02K11/00H02K11/20
CPCH02K7/063H02K7/081H02K7/085
Inventor 姚益江石宇杰
Owner NINGBO CHUANGJI MACHINERY
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