Servo presses are an important modern advancement in the world of manufacturing, offering exceptional precision and versatility. In this blog post, we'll take a closer look at how servo presses work, as well as its ideal applications, and the advantages and disadvantages of using this technology.

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What is a Servo Press?

First, what is a servo press? A servo press is a type of mechanical press that uses a servo motor to control its movement and force. Unlike conventional presses that rely on pneumatic or hydraulic systems, servo presses offer precise control over the press stroke, speed, and position. This level of control allows for greater accuracy and flexibility, which is important for many manufacturing processes. We'll discuss these processes and applications in more detail later in the post.

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How Does a Servo Press Work?

The servo press operates by integrating a servo motor with the press mechanism. The servo motor converts rotary motion of the motor shaft into precise linear movements, which are then transmitted to the linear actuator output shaft. The output shaft applies the required force to the workpiece, shaping or assembling it as needed.

The key feature of a servo press is its programmable control system. This system allows operators to set precise parameters for each press cycle, including speed, position, and force. The servo motor's feedback loop ensures that these parameters are met accurately, making real-time adjustments as needed.

Parts of a Servo Press

Let's take a closer look at the parts of a servo press that make this system so efficient and precise. Keep in mind that there are different types of servo presses with different adjustments and augmentations, which may contain different parts. However, these are the main components which make a servo press work.

1. Servo Motor: The servo motor is the heart of the servo press, providing precise control over the press movements. The servo motor converts electrical signals into mechanical motion with high accuracy, allowing for detailed control over speed, position, and force. This precision enables complex operations that are difficult to achieve with conventional press systems.
2. Control System: The control system is a computer-based system that allows operators to program and monitor press operations. The control system includes a user interface for setting parameters, a processor for executing commands, and communication modules for interfacing with other machinery and systems. Advanced control systems often feature real-time monitoring and diagnostics to ensure optimal performance and quick troubleshooting.
3. Actuator: The part of the press that provides linear motion, applying force to the workpiece. The actuator is driven by the servo motor and is designed to deliver consistent and precise force throughout the press cycle. It can be equipped with various tooling attachments depending on the specific application.
4. Frame: The structure that supports the press and absorbs the forces generated during operation. The frame must be robust and rigid to maintain alignment and accuracy. It typically includes base plates, columns, and cross-members designed to withstand high loads and stresses while minimizing deflection.
5. Sensors: Used to monitor various parameters such as position, force, and speed, providing feedback to the control system. Common sensors in a servo press include load cells for force or distance monitoring, encoders for feedback on position and speed. These sensors enable closed-loop control, where real-time data is used to adjust operations dynamically.
6. Safety Mechanisms: These include emergency stop buttons, safety guards, light curtains, and interlocks designed to protect operators and prevent accidents. Safety mechanisms are integrated into the control system, ensuring the press can be quickly and safely shut down in an emergency.
7. Power Supply and Electrical Components: These provide the necessary electrical energy to the servo motor and control system. This includes transformers, power converters, circuit breakers, and wiring, all designed to ensure reliable and efficient power delivery.
8. Tooling Interface: The interface where various tools and dies are mounted on the ram and the press bed. This interface must be highly adaptable to accommodate different types of tooling and ensure quick and accurate changes between operations.

Advantages vs Disadvantages of a Servo Press

As previously mentioned, servo presses are ideal for applications that require high precision and flexibility. Since these machines are typically more expensive than other types of presses, it can be difficult to know when to choose a servo press, and when a traditional press might be appropriate. Understanding the advantages and disadvantages of a servo press, as well as how a servo press works, can be helpful.

Advantages of a Servo Press

• Precision: The ability to control every aspect of the press cycle ensures high accuracy and repeatability.
• Flexibility: Programmable settings allow for quick changes between different tasks and processes.
• Energy Efficiency: Servo motors use energy more efficiently than traditional hydraulic or mechanical systems.
• Reduced Noise and Vibration: Quieter operation and less wear and tear on components.
• Improved Quality Control: Real-time monitoring and adjustments lead to consistent, high-quality output.

Disadvantages of a Servo Press

• Cost: Higher initial investment compared to traditional presses.
• Complexity: More advanced technology requires skilled operators and maintenance personnel.
• Maintenance: Although servo presses are generally reliable, they can be more complex to repair. If issues arise, the actuator would most likely have to be sent back to the manufacturer for evaluation.

Servo presses represent a significant leap forward in manufacturing technology, offering unparalleled precision, flexibility, and efficiency. Understanding how a servo press works and its advantages and disadvantages can help manufacturers make informed decisions about integrating this technology into their operations. If you're interested in a servo press for your business or factory, contact us. We can help you find the perfect servo press for your applications.

Servo Press Machine: Ultimate Guide

Updated on Feb,26

Forming presses have evolved over the years, and servo press machines have also been developed for a long time. In this article, we will detail some common problems with servo press machines.

 

What is a Servo Press Machine

servo press machines usually refer to presses that use servo motors for drive control. This includes servo press machines for metal forging and servo press machines for refractory materials and other industries. Because of the servo motor's numerical control characteristics, it is sometimes widely referred to as a CNC press.

servo press machines drive eccentric gears through a servo motor to realize the slider movement process. Through complex electrification control, the servo press machine can be programmed with arbitrary ram travel, speed, pressure, etc. to achieve the nominal force of the press even at low speed operation.

 

Servo Press Machine Classification

Servo press machines are classified into servo crank presses, servo link presses, servo screw presses, and servo hydraulic presses, etc.

• Servo crank presses

  The general mechanical crank press is driven by eccentric teeth to move the slider crank up and down and the curve is a sine curve. The nominal force is generally reached before the ram runs to the lower stop. The stroke is fixed and non-adjustable. The general hydraulic press can achieve the nominal force at any position of the ram stroke because the pressure is transmitted by liquid. The stroke is adjustable but inefficient.

  Servo press machines, on the other hand, control the movement of the ram by means of a motor and combine the advantages of mechanical presses and hydraulic presses by means of pre-programming, so that press production can be realized in any way at any stage of the stroke and the pressure curve can be programmed at will.

• Servo screw presses

  The conventional double-disc friction-driven screw presses continuously rotate the friction discs after starting the machine, which consumes a lot of energy, and the striking force is subject to human influence, making the product quality unstable.

  As an upgrade of the friction press, in the field of hot forging and refractory molding processing, two kinds of electric screw presses, the switch reluctance screw press and the servo screw press, have appeared in the market according to the different driving motors.

  Servo screw presses start the machine, as soon as the control voltage is lost, the motor immediately stops, so the power consumption is almost negligible in the time other than the press implementation of striking action, saving about 60 percent of power than friction presses, and due to the superior performance of servo motors, servo screw presses run more smoothly and can achieve fast striking within a very short stroke.

  1. Refractory material industry: refractory bricks, shaped refractory bricks and refractory balls molding.

  2. Automobile industry: engine component press (cylinder head, cylinder liner, oil seal, etc.) steering component press (gear, pin, etc.) transmission shaft component press, gear box component press, brake disc component, etc.

  3. Motor industry: micro-motor component press-fitting (spindle, housing, etc.) motor components (bearings, spindles, etc.)

  4. Electronics industry: circuit board components press-fit (plug-in, etc.), electronic components.

  5. Home appliance industry: home appliance parts, home appliance parts riveting, etc.

  6. Machinery industry: mechanical parts, automatic group line, wear parts life test, etc.

• Servo hydraulic press

  Servo hydraulic press is used to drive the main drive oil pump by servo motor, reduce the control valve circuit, and control the hydraulic press slide, which is suitable for stamping, die forging, press fitting, straightening and other processes. Compared with common hydraulic presses, servo-driven hydraulic presses have the advantages of energy saving, low noise, high efficiency, good flexibility and high efficiency, and can replace most of the existing common hydraulic presses.

 

Servo Press Machine Structure and Composition

The structure of servo press machine has table type C, bow type, single column type, two column type, three column type and four column type. The table type structure is simple and reliable, with strong load-bearing capacity and small load-bearing deformation, which is a stable and widely used load-bearing structure. The main system of the equipment consists of servo motor, motor controller, reduction drive, brake, position sensor, programmable controller, touch screen, working mechanism, auxiliary mechanism, etc.

With competitive price and timely delivery, S-T Intelligence sincerely hope to be your supplier and partner.

 

Servo press machine structure and technical characteristics

• The main structure

  The use of table structure, simple and reliable, strong bearing capacity, bearing deformation is small, is stable, the use of a wide range of bearing structure.

• Servo press machine system composition.

  Equipment primary system composition: servo press machine unit, control system, display and other components.

  servo press machine principle: servo motor drives fine ball screw through synchronous belt to complete the pressure spindle orientation control; pressure spindle front-end equipment high sensitive pressure sensor, can real-time detection of pressure spindle load; control system real-time collection of orientation and load data, so as to complete the fine press online quality management technology.

• Servo press machine fitting unit primary components.

  Drive equipment --- servo drive

  Transmission equipment --- synchronous wheel structure, fine ball screw

  Pressure output --- pressure spindle

  Bearing sets --- ball bearings, self-lubricating bearings, etc.

  Pressure sensor --- external type, beautiful structure, no interference of electric wire

  Housing --- sheet metal spray paint

  Control system --- closed loop control

 

Application status of servo press machines

Screw presses can be used in many industries, forging industry, resistant material industry, etc.  In recent years, with the development of science and technology, the market demand for high-quality, high-precision, low-priced products is growing, and the demand for processing equipment for manufacturing products is becoming more and more abundant, thus making the international competition in the manufacturing industry more and more intense.

The structural characteristics of servo press machines are:

1. Small structure, light weight, functional compounding and integration.

2. Extend the life of components and improve the reliability of the system.

3. Reduce hydraulic vibration and noise.

4. Combined with electronic technology to improve the control capability.

Since servo press machines have many advantages that cannot be surpassed by traditional presses. At present, Japanese enterprises in the new presses, 99% is to purchase servo press machines, it can be seen that the future servo press machines will definitely replace the traditional presses and become the core of plastic processing equipment.

 

Analysis of the development trend of servo press machines

servo press machine development history, servo press machines are widely used in developed countries, Japan AMINO (AMINO), Japan Komatsu (KOMATSU), Germany SCHULER (SCHULER) and other press manufacturers have launched a variety of transmission structure, different specifications of the servo press machine, almost monopolizing the market of all high-end presses, access to huge economic benefits. However, due to the rapid growth of the national economy, the internationalization of the market and the rise of people's consumption views, the streamline and personalized requirements for manufacturing products, various industries have also introduced a lot of foreign manufacturing equipment. Due to the high precision and good working environment of the manufactured products of servo press machines, and also the advantage of energy saving, which is more meaningful to the current domestic saving society, it is bound to be recognized and widely used in the near future, and it is also believed that it will replace the existing presses in the forming field in the near future. servo press machines are developed from the following aspects.

 

What are the issues to consider when choosing a servo press machine?

1. The first thing to look at the servo press machine precision is not high. Precision refers to the accuracy of the pressure and position to reach a specific point to stop. He is related to the resolution of the drive, the resolution of the pressure transmitter, the accuracy of the servo motor and the response speed of the response equipment. servo press machine through the mature set of servo motor and drive integrated control, its repeat accuracy is getting higher and higher, the use of a wider and wider range, if you need high precision servo press machine, choose servo press machine will focus on the configuration

2. The second look at the structure of the servo press machine and servo press machine manufacturers of the general structure is not a single, common four-column, single column, arch, horizontal, frame hydraulic press, four-column economical and practical structure, single column, arch structure is easy to operate, the level of operation found in the longer than other products, frame type in the large tonnage dominant, so the choice of structure still needs to be based on product size and structure

3. Servo press machine functions include forging, stamping, assembly, assembly, pressing, forming, flanging, shallow pulling, etc., different functions often have different structures, so you also need to choose the right servo press machine according to their own circumstances. Product process requirements

 

Selecting an excellent servo press machine manufacturer

JDM JINGDA MACHINE(NINGBO) CO., LTD is the only listed press/punching metal forming manufacturer in China. With great products and a brilliant team, JDM With great products and a brilliant team, JDM has grown to be a leader in China's press/punching/metal forming industry for the past 30 years. Since our state-of-the-art production and Since our state-of-the-art production and warehouse center operates on an area of 2,000,000 square feet. Welcome to visit our high-speed servo press machine website.

 

The company is the world’s best Servo Press Technology supplier. We are your one-stop shop for all needs. Our staff are highly-specialized and will help you find the product you need.