Selection of press manufacturers

Mechanical structure

Air hammer

Stamping die base is a typical functional part of Z forging machine tool, which realizes standardized production. Punching, blanking, stretching, notching and other stamping processes on the machine press are inseparable from the stamping die. The punch and female die of the working part of the stamping die are installed on the stamping die base. Different stamping processes require different punch and female dies, but the same stamping die base can be used. The stamping die base is composed of upper and lower templates, guide posts and guide sleeves. A series of products for different specifications and models of presses have been developed. The stamping die base below medium specifications has been standardized.

Brake

In terms of the maturity of the development, production and use of the functional parts of the forging machine tool, the friction clutch brake is used for the machine tool press. Friction clutch brake is an important part of the main drive of machine tool press. Its performance directly affects the usability, performance and reliability of the whole machine, as well as the starting rate and maintenance volume of the equipment. The structure of the friction clutch brake can be divided into two types: combined friction clutch brake and separated friction clutch brake; The working states of the massage friction pair are divided into dry friction clutch brake and wet friction clutch brake; The operating system of the massage friction clutch brake is divided into pneumatic friction clutch brake and hydraulic friction clutch brake.

Photoelectric protection device

The photoelectric protection device is provided with an invisible infrared light curtain in the protection area between the operator of the forging machine tool and the dangerous working area. Once the operator enters the protection area to block the light curtain, the control system outputs a signal to the actuator of the forging machine tool to make the forging machine tool stop in an emergency and prevent dangerous actions. It can be seen that the photoelectric protection device itself cannot directly protect the operator. It sends a signal to the machine tool to stop the dangerous action before the accident may occur. Therefore, strictly speaking, the photoelectric protection device should be called the photoelectric protection control device.

Photoelectric protection devices are generally divided into two types: reflection type and reflection type. The reflective photoelectric protection device is composed of a controller, a sensor and a reflector. The light curtain is emitted by the sensor and then reflected back to the sensor through the reflector for reception; The counter radiation photoelectric protection device is composed of a controller, a transmitting sensor and a receiving sensor. The light curtain is emitted by the transmitting sensor and received by the receiving sensor.

Cam controller

Cam controller is an important part of the electrical control system of machine tool press. The method to deal with the logical relationship of the working mechanism is usually to distribute the 360 ° rotation of the crankshaft, formulate the working cycle diagram of the machine tool press, and control the action of each working mechanism. The cam controller is the actuator that distributes the rotation angle of the crankshaft. The cam controller is installed on the shaft that rotates synchronously with the crankshaft, and the working mechanism generates specified actions in turn to complete a working cycle of the machine tool press. There are many factories producing cam controllers in China, and the product quality is generally stable and reliable. The main engine factory adopts the mode of directional identification and purchase to support.

Automatic feeding device

The tangible automatic feeding device in the forging machine tool refers to the automatic feeding device used for sheet metal by single machine or automatic stamping line such as open press, closed press, multi station press and high-speed press. The automatic feeding device is generally composed of three parts, i.e. material rack, uncoiling and leveling mechanism, pneumatic clamp type feeding mechanism and waste winding material rack. The material rack and uncoiling leveling mechanism have three functions of supporting the coil material, uncoiling and leveling. The uncoiling mechanism slightly loosens the coil material and is in a free hanging state, so as to reduce the tension of the feeding mechanism during the feeding process and improve the feeding accuracy; The leveling mechanism applies force to the uncoiled coil material with multiple rollers, so that the plate can be corrected before stamping, which is conducive to improving the product accuracy. The pneumatic clamp type feeding mechanism is powered by compressed air to control the opening and closing of the clamp and the reciprocating motion to complete the feeding of sheet metal. The reciprocating stroke is stepless and adjustable to meet the requirements of different feeding lengths. The waste winding material rack winds up the punched waste belt material. If the waste belt material is cut off and recycled during punching, this part is not required.