1. Hydraulic stretching press
YOS50 hydraulic stretching press is an equipment which is used to stretch extrusive copper pipes or special pipes from extrusion press to reach straightening requirement.
The press is made up of body, knock core device, unloading frame, loading frame and pipeline.
The body is made up of press bed, working cylinder and walking crossbeam. The press bed is a welding structure and is equipped with railway. The walking crossbeam moves along the railway under action of the working cylinder and completes work of stretch straightening, The knock core device is used to complete a working procedure which can make the bore of stretched pipe to reach the technological requirement. The technological requirement can be completed through steel wire rope and pulley drive knock core rod. The loading and unloading frames are the loading work table and fork type of unloading work table. The control system takes high pressure water from water pump station as power. The high pressure water passes through the main gate valve of executive element, distributor etc. and then comes into working cylinder.
2. Hydraulic punching press
YQC1200 punching press is one of main equipment in the production line of ferrous metal pipe extrusion.
This equipment adopts structure of four post welding guide frame, prestressed framework, rotary type of double-punching tube etc. The upper and lower crossbeam is designed to rhombus because of the special requirement of the rotary punching tube.
By using the rotary double punching tube, this equipment can realize the loading, unloading and upsetting. Punching can be carried out at the same time. So, this equipment has higher productivity.
For the body part, upper crossbeam, lower crossbeam and pull-rod form a closed prestressed framework. The walking beam in middle carries out the punching work under action of punching cylinder and upsetting cylinder. The punching cylinder and upsetting cylinder are fixed on the upper crossbeam. The lower crossbeam is equipped with knockout device.
For the mechanical part, loading heated blank and unloading hollow blank will be achieved by loading and unloading mechanical arm. Swing arm of dusting and hopper are fitted for lubricating blank to assistant punching. The mechanical part is also equipped with needle changing device, the aim is that making use of mechanical method to change tool of punching needles to reduce laboring intensity.
The control part takes water pump station as power source. Assistant part is controlled by oil pipeline.
3. Hydraulic punching and drawing press
YQB series of hydraulic punching and drawing press is suitable for processing the cup type (bucket type) part which one end has bottom and has a certain thickness. The heated blank is finished through punching and drawing (some working procedure) in one time of heating. Such as, all kinds of container, oxygen bottle, projectile body etc.
For YQB series of hydraulic punching and drawing presses, the body structure is a vertical type of three beam four post form. This structure has a very good rigidity and higher guide precision. At the same time, the press also has higher working speed. The lower crossbeam has a knockout device. It knocks the workpiece out after finished punching and drawing. The YQB125～1200 is a single cylinder structure and the YQB1500 has a three cylinder structure.
The control system uses the high pressure water from water pump-pressure reservoir. The high pressure water pass through automatic gate valve, distributor and then comes into working cylinder. The low pressure system has liquid charging tank, so maintenance is easy. The control system also has high and low pressure buffer to lighten liquid impact.
Explanation of type and size
YQ□XXXX
Nominal pressure (MNX100）
S—Stratching C—Punching B—punching and drawing Other hydraulic press
