YQ32 1000T Four Column Hydraulic Press

YQ32 1000T Four Column Hydraulic Press

Equipment model and name

 YQ32-1000T Three Beam Four Column Hydraulic Press

 

Main parameters of hydraulic press

TYPE numerical value unit
Rated Nominal Pressure 10000 KN 500T*2
Maximum working pressure of liquid 25 MPA
Maximum stroke of cylinder 600 MM
 Maximum opening height 2000 MM
running speed Fast forward speed 110 MM/S
Working speed 6-15 MM/S
Return speed 80 MM/S
Worktable

 

Effective size

Inside the left and right pillars 2500 MM
Front and rear edges 2000 MM
Mobile workbench area around 2400 MM
Mobile workbench area 2000 MM
Workbench moving bearing capacity 30 T
Workbench removal distance 1600 mm
Total displacement of main oil pump 250 Ml/r 125*2
Main motor power 37 KW 2set

 

Characteristics of hydraulic press

A hydraulic press is a hydraulic device that uses liquid to transmit pressure. When a liquid transfers pressure in a closed container, it follows Pascal’s law. The hydraulic transmission system of a hydraulic press consists of a power mechanism, a control mechanism, an executing mechanism, an auxiliary mechanism, and a working medium.

This machine adopts a three beam and four column structure, and the body is composed of a workbench, a mobile workbench, a slider, an upper crossbeam, a column, a lock nut, and an adjusting nut. The four column structure is one of the most common structural forms of hydraulic presses. The most prominent feature of the four column structure is its spacious workspace, easy observation from all sides, and proximity to the mold. The entire machine has a simple structure and good craftsmanship, but the column requires large round steel or forgings. Hydraulic presses rely on the static pressure of liquid media to accumulate, transmit, and amplify energy within a certain mechanical and electronic system, achieving lightweight, scientific, and maximized mechanical functions.

Hydraulic machinery has the characteristics of light weight, high power, simple structure, flexible layout, and convenient control. Speed, torque, and power can be adjusted steplessly, and can quickly change direction and speed. It has a wide speed range, good fast performance, stable operation, and low noise. It is suitable for metal material pressing processes such as stamping, bending, flanging, and sheet stretching. It can also be engaged in calibration, pressing, grinding wheel forming, cold and hot extrusion of metal and other non-metallic materials, such as plastic, fiberglass, powder metallurgy, insulation materials and other pressing forming, as well as experimental research on new processes and technologies related to pressing. It has been widely applied in medical, technological, military, industrial, automated production, transportation, mining, construction, aviation and other fields.

The requirement of this machine is to drive the motor according to the action chart specified by the hydraulic system, select the specified working mode, and, under the command of the transmitting component, make the relevant electromagnet move to complete the specified process actions of inching and semi-automatic circulation. Set up an electrical control box. Except for the electrical components that must be installed separately according to the needs of the machine (such as electric motors, electromagnets, proximity switches, and pressure relays), all other electrical appliances are centrally installed in the electrical control box. Operators only need to manipulate the corresponding switch buttons to operate the machine.

 

The machine tool will implement the following standards during the design and manufacturing process:

  1. JB/T7343-94 “Precision Standard for Single and Double Acting Thin Plate Stamping Hydraulic Press”
  2. JB/T3818-1999 “Technical Conditions for Hydraulic Press”
  3. JB/T1829-1997 “General Technical Conditions for Forging Machinery”
  4. JB3915-1997 “Safety Technical Conditions for Hydraulic Press”
  5. GB17120-1997 “Safety Technical Conditions for Forging Machinery”
  6. JB9967-1999 “Noise Limits for Hydraulic Press”
  7. GB3766-83 “General Technical Conditions for Hydraulic Systems”
  8. JB/T8609-1997 “Technical Conditions for Welding Parts of Forging and Pressing Machinery”

 

Hydraulic press structure

This machine is composed of two main parts: the host and control mechanism, which are connected through the main pipeline and electrical devices to form a whole. The main engine includes the body, main oil cylinder, mobile workbench oil cylinder, and filling system. The structure and functions of each part are now described as follows

(1) Fuselage

The body is composed of an upper crossbeam, a slider, a workbench, columns, lock nuts, adjustment nuts, etc. The upper crossbeam and workbench are connected to a rigid truss with four columns and lock nuts, while the slider is guided by four columns and moves up and down during rubbing. By adjusting the four adjusting nuts, the unevenness of the lower plane of the slider towards the workbench surface and the non verticality during travel can be adjusted.

There is a circular hole in the center of the workbench, and the ejection cylinder is tightly pressed onto the steps inside the circular hole by a pressure sleeve. In the central hole of the upper crossbeam, there is a main oil cylinder. The main oil cylinder is fastened to the crossbeam by a step at the cylinder port end and a large nut. The large square plate in the center of the slider is used to fix the main piston rod, and is connected to the main piston rod by bolts and threaded flanges. In the four column holes of the slider, guide sleeves are installed for easy replacement after wear. Externally, pressure fitting oil injection cups are installed to lubricate the column – guide sleeve moving pair. At the port end, dust rings are installed to prevent dirt from entering the moving pair and keep the movement clean.

On both the locking nut and the adjusting nut, there is a red copper pad with a set screw. After the machine is adjusted, tightening the screw can prevent the nut from loosening.

 

(2) Mobile Workbench

The hydraulic press is equipped with a moving table that moves forward and out. The driving method is to push the hydraulic cylinder forward and backward. The mobile workbench is guided by two guide keys. The workbench movement speed is adjustable from 0 to 90mm/sec.

The lifting and clamping of the mobile workbench adopt an independent hydraulic system, which is tested by pressure and compensated by clamping pressure.

When the mobile workbench is moved in, out, and down for clamping and positioning, it is interlocked with the hydraulic machine action and equipped with a positioning detection switch.

 

(3) Master cylinder

The main oil cylinder is a double acting piston type oil cylinder, with a bottom sealed overall structure. A piston head is installed in the cylinder body, and two upward and one downward holes are installed on the outer ring of the piston head, sealed with the cylinder wall using Yx shaped sealing rings; The sealing between the inner ring of the piston head and the piston rod is achieved by two O-ring seals, thereby forming two oil chambers in the cylinder.

A guide sleeve is installed at the cylinder port to ensure good guiding performance during piston movement. A Yx shaped sealing ring for the shaft is installed in the inner hole of the guide sleeve, and two O-ring sealing rings are installed on the outer circle of the guide sleeve to ensure the sealing performance of the cylinder port. The cylinder port end adopts a detachable snap ring connection, and a dust ring is installed at the end to prevent dirt from entering the cylinder and keep the oil clean.

A filling valve is installed at the bottom of the main oil cylinder, which is threaded and sealed with an O-ring. On the upper end face of the cylinder block, a filling cylinder is installed, firmly connected with bolts, and sealed with oil resistant rubber rings.

 

(4) Ejection cylinder (optional)

The form and working principle of the ejection cylinder are the same as the main cylinder. The bottom of the cylinder adopts a snap key structure that can be disassembled. On the outer ring of the piston head, only two opposite holes (one up and one down) are arranged with Yx shaped sealing rings. On the end face of the extended end of the piston rod, There is a standard threaded hole of M36 for configuring the top rod. On the upper end face of the cylinder block, there are 2-M12 standard screw holes for lifting and ejecting the cylinder.

 

(5) Liquid filling system

The filling system consists of two parts: a filling valve and a filling cylinder.

When the slider rapidly descends, due to the negative pressure in the upper chamber of the main cylinder, the main valve of the charging valve is sucked open, causing a large amount of oil in the charging cylinder to flow into the upper chamber of the main cylinder, so that the slider can smoothly and quickly descend. During pressure relief, the control oil first enters the control valve, causing the control piston to overcome the spring force and push the unloading valve core downward, so that the high-pressure oil in the upper chamber of the main cylinder is connected to the filling cylinder through the unloading valve core, achieving the purpose of pressure relief.

There is a long oil gauge on the upper part of the filling cylinder to observe the oil level. The overflow pipe at the center of the filling cylinder divides the volume of the filling cylinder into two parts: the lower oil is used for the quick downward movement of the slider, and the upper volume is used to accommodate the oil discharged from the upper chamber of the main cylinder when the slider returns. At the lower part of the filling cylinder, there is a gate valve installed for regular oil replacement.

The filling valve is tightly connected to the bottom of the oil cylinder with threads on the valve seat and sealed with an O-ring. The filling cylinder is connected by the middle plane to the upper end of the main cylinder, and is fastened with bolts and sealed with oil resistant rubber pads. There is a ventilation hole on the cover of the cylinder, and a lifting hook is installed inside the liquid filling cylinder.

 

(6) Power mechanism

The power mechanism is composed of a fuel tank. Composed of high-pressure oil pump, electric motor, integrated valve block, etc. It is a mechanism that generates and distributes working fluid, enabling the host to complete various predetermined actions.

 

(7) Pipeline

The hydraulic pipeline system is sealed reliably, and the high-pressure pipeline connection uses high-pressure flanges and high-quality sealing components, which can effectively prevent leakage. Arranging pipelines neatly and setting up sufficient seismic clamps can effectively reduce and control pipeline vibration. Perform acid pickling and passivation treatment during pipeline installation.

 

(8) Electrical control system

The electrical control system is divided into two parts: the power system and the control system. The power part includes the control main power supply, the start/stop and protection switches of each motor, etc. The high-power motor is started using a star delta step-down sequence, and the power supply adopts a three-phase four wire system, AC380V, 50HZ, with a pilot solenoid valve voltage of DC 24V.

The control part includes an electrical box, an operation box, and a mobile button station. The electrical box is placed on the ground, and the operation box is placed on the right front column of the machine to complete all movements of the machine. The operation box can complete all movements of the machine. The operation box is equipped with operation buttons for each part of the hydraulic machine, function conversion switches, start and stop buttons for each motor, and alarm and monitoring indicator lights for each part.

The electrical control system is controlled by Schneider Electric Appliances.

The production volume can be counted in the control system.

 

(9) Painting and Protection

The paint color is milky white, and the sliding beam is yellow. It can also be determined based on the color plate provided by the customer. Before painting, the surface of each component of the press should be completely cleaned of oxides, welding slag, and oil stains. The surface before painting should reach GB8923-88A-B Sa2.5 level, and then coated with epoxy anti rust paint base and top paint. The thickness of the base and top paint film should be ≥ 70um. Before leaving the factory, all exposed processing surfaces should be taken anti rust protection measures.

 

(10) Safety devices

Set an emergency stop button for the press machine. In case of any abnormality, press the “emergency stop” button, including the motor, to stop running. The four corners of the press column are equipped with emergency stop buttons.

Two handed operation button: The synchronization time limit for both hands downward is 0.5~1s.

Install one set of photoelectric protection device for the press.

Hydraulic locking device, with an oil cylinder installed between the upper beam and the sliding beam. The oil cylinder is fixed to the upper beam, and there is a pin hole plate on the sliding beam. When the sliding beam reaches the top, the oil cylinder extends out and the piston pin is inserted into the pin hole plate on the sliding beam to fix the sliding beam and prevent it from sliding down. During operation, the cylinder pin retracts and the sliding beam moves up and down normally.

 

Main performance characteristics of the machine tool:

  1. Purpose:

This system hydraulic press is a general hydraulic press, also known as a universal hydraulic press, suitable for stretching, bending, flanging, cooling, punching and other processes of metal materials. It is also suitable for calibration, pressing, powder products, abrasive products pressing and forming, as well as plastic products and insulation materials pressing and forming.

 

  1. Performance characteristics:

The four column structure has good rigidity, high accuracy, simple structure, and is economical and practical.

The hydraulic control adopts integrated control with plug-in valves, which has small impact, reliable action, long service life, and few leakage points.

The new imported oil cylinder sealing element has high reliability and long service life.

The stretching and edge pressing sliders can be connected together to achieve single action process actions.

Automatic lubrication device for guide rails; The support circuit of the lower chamber of the oil cylinder and the interlocking circuit of the upper and lower chambers of the oil cylinder have superior safety.

Independent power mechanism and electrical system, with centralized button control, can achieve three operation modes: adjustment, manual, and semi-automatic.

It can achieve two types of forming processes: fixed pressure and fixed range, and has the function of wrapping pressure delay, with adjustable delay time.

The working pressure, pressing speed, no-load downward and deceleration travel range can be adjusted according to work needs.

 

Electrical system (PLC optional)

1: Electrical System Overview

This machine adopts a 50HZ, 380V three-phase AC power supply, and the power wiring adopts a five wire system. (Three wires are 380V, AC current input, one wire is N zero input. One wire is PE grounding input) The solenoid valve is 24V.

 

2: Electrical system inputs and outputs

Firstly, connect the power cord to the incoming terminals (L1, L2, L3, N, PE) and close QF1, QF2, and the circuit breaker. The indicator light (HL1) will light up, and the emergency stop (SA2) knob will be turned off (pressing inward will turn off, clockwise rotation will automatically pop up). Press the oil pump start (SB1) button, and the motor M1 will work. After 5 seconds, M2 will start. Check if the motor rotation direction is consistent with the arrow direction indicated on the oil pump. If the direction is different, press the emergency stop (SA2) button to stop the motor, Adjust any two of the incoming terminals L1, L2, and L3. This machine adopts a motor step-down starting method for operation. It is divided into automatic and jog modes, and can be selected for fixed range and constant pressure according to process requirements.

 

Maintenance and Safety Operating Procedures

The correct use of machinery and equipment, careful maintenance and upkeep, and adherence to safe operations are necessary conditions for extending the service life of equipment and ensuring safe production. Therefore, it is necessary to first familiarize oneself with the structural performance and operating procedures of the machine, and master its characteristics. Provide several regulations for maintenance and safe operation based on general usage, for users’ reference.

  1. Maintenance

(1) It is recommended to use 30 # hydraulic oil for work. When selecting engine oil or turbine oil, it should be determined based on the temperature: when the room temperature is below 20 ℃, 20 # engine oil or 22 # turbine oil can be used. When the room temperature is above 30 ℃, 30 # can be selected. The oil temperature used should be within the range of 15 ℃ to 60 ℃.

 

(2) The oil should be strictly filtered before being allowed to be added to the oil tank. The amount of oil injected into the tank should not be lower than the oil level gauge, and the filling cylinder should also be filled to the oil level gauge position.

 

(3) The working oil should be replaced every six months, and the first replacement should not exceed two months. The new grades of oil are N32 and N46 ordinary hydraulic oil, and N32 and N46 mechanical oil can also be used as substitutes.

 

(4) The exposed parts of the column and plunger should be frequently sprayed with engine oil, and should be sprayed once before each operation.

 

(5) Under nominal force, the maximum allowable eccentricity of concentrated load is 50mm. Excessive eccentricity can easily cause damage to the column or other adverse phenomena.

 

(6) Check and calibrate the pressure gauge every six months.

 

(7) When the machine is out of use for a long time, all machined surfaces should be wiped clean and coated with rust resistant oil.

 

  1. Safety operating procedures

(1) Those who do not understand the structural performance of the machine and operate the program should not start the machine without authorization.

 

(2) During the operation of the machine, maintenance and adjustment of the mold should not be carried out.

 

(3) When the machine discovers serious oil leakage or other non reliable conditions (such as unreliable operation, excessive noise, vibration, etc.), it should be stopped to analyze the cause, eliminate the fault, and not operate with faults.

 

(4) Do not overload or exceed the maximum eccentricity for use.

 

(5) It is strictly prohibited to exceed the maximum stroke of the slider.

 

(6) Electrical equipment must be firm and reliable.

 

  • When the slider is in the down position, if the slider stops and does not go down, and the upper chamber is pressurized again, it should be stopped immediately! Check if the hydraulic control one-way valve and safety valve of the valve plate in the lower block of the main cylinder are flexible and reliable.

 

List of accompanying accessories and supporting parts

  1. 1 host
  2. 1 set of hydraulic system (including oil tank)
  3. 1 set of hydraulic hose for this machine
  4. 1 set of commonly used seals
  5. 4 foundation bolts
  6. 1 set of main tools

 

Main configuration manufacturers:

NO. Name Manufacturer Remarks
 Motor Nanjing Global
oil pump Shanghai Jisheng
3 Hydraulic valve Shandong Taifeng
4 air switch Delixi
5 Intermediate relay Schneider
6 proximity switch Jining
7 button Schneider
8 Sealing element Taiwan Dingji

 

Service Commitment Letter

Our company is committed to developing new products and improving product quality. At the same time, we have also established a relatively perfect after-sales service network worldwide and domestically, with after-sales service outlets scattered throughout the country. To provide our users with more convenient and high-quality services.

 

Pre sales and after-sales service:

 

  1. The machine tool is transported to the buyer’s site for use, and the buyer is responsible for providing free lifting tools and general tools. The supplier is responsible for completing the debugging within the specified period.

 

  1. After the machine tool arrives at the use site, the supplier immediately sends personnel to the buyer’s site to guide installation, debugging, and provide training on operation and maintenance for the buyer’s operation and management personnel. Ensure that the demander’s operators are able to operate and maintain independently and proficiently. The purchaser can also send operators to the supplier for training.

 

  1. Acceptance of machine tools: According to the contract and the acceptance terms mutually agreed upon by both the supplier and the demander, the machine tools that have been debugged shall be inspected and accepted. Confirm that the performance and other technical indicators of the machine tool comply with the contract provisions.

 

  1. After the expiration of the quality assurance period, the purchaser can purchase spare parts through an agency or directly from the supplier, and the supplier can arrange technical services when needed. Or respond within 2 hours after receiving a call (or fax) from the demander requesting services, and send qualified service personnel to the demander’s equipment usage site within 12 hours; Arrive outside the province within 24 hours.

 

Quality assurance:

 

The supplier’s products are subject to the “three guarantees” from the date of sale, and the quality assurance period is one year from the date of acceptance. During the warranty period, if the parts are damaged due to non user reasons, they will be replaced free of charge (vulnerable parts are not covered by the warranty). Lifetime paid service.

 

Equipment debugging:

 

  1. The foundation of the equipment shall be provided by the supplier with drawings, and the purchaser shall be responsible for the specific construction.

 

  1. After the product is assembled in the supplier’s factory, promptly notify the buyer of the specific delivery time and the necessary preparations for installation.

 

  1. The supplier is responsible for the installation and debugging of the equipment on the buyer’s site, with the buyer’s cooperation and providing the necessary lifting equipment, water, electricity, and necessary conditions for installation.

 

  1. During the installation and debugging process of the equipment on the buyer’s site, the supplier shall provide free training and technical consulting services to the relevant technical personnel of the buyer.

 

  1. After installation and debugging, both parties shall conduct joint acceptance in accordance with the technical agreement and relevant technical attachments signed by both parties.

 

The company is responsible for debugging and guiding the installation of the equipment, and users send personnel to cooperate. Provide necessary lifting tools.

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