Linear Module
What Is Linear Module?
The linear module is a mechanical structure that provides linear motion. It can be used horizontally or vertically. It can also be combined into a specific motion mechanism--that is, multi-axis motion commonly referred to as XY axis, XYZ axis, etc. in the automation industry. mechanism.
This organization has different names in different industries. The more common names are: linear rail, linear motion rail, electric cylinders, electric slides, robot arms, linear guide rails, etc.
The linear module is usually used with a power motor. It can be used to automatically reciprocate the workpiece by installing other required workpieces on the slider to form a complete conveying motion device and setting a suitable motor forward and reverse program. Thereby achieving the purpose of mass production and intensive production of equipment.
Advantages of Linear Module
Increase the speed of movement of a single object
The speed of movement of a single object can be increased by quickly reducing friction. Linear modules can increase the speed of linear movement by reducing the friction between interacting objects. At the same time, the positioning speed of linear modules is also very fast, and time consumption is greatly reduced. The increase in positioning speed and linear motion speed means that positioning speed and linear motion speed are interchangeable, and more work can be completed in a short time, that is, work efficiency is significantly improved. Belt linear modules are particularly prominent in terms of speed advantage.
High precision
High repeat positioning accuracy and fast positioning speed do not mean affecting the positioning accuracy of the linear module. While increasing the speed, the positioning accuracy of the linear module is further improved. Repeat positioning can be accurate at the same time, without recalibration and multiple operations, and parts can avoid errors. Linear slides are available in a variety of models and specifications, easy to use, and no need to calibrate themselves and products in the short term. Ball screw linear slides have a strong advantage in repeat accuracy level and are very common in contemporary laser manufacturing and laser cutting manufacturing.
Small size, long life, high speed
Small size, long life, high speed, and high precision are not all the advantages of linear modules, nor do they mean that linear modules are large. On the contrary, linear modules are smaller than existing transmission devices, and there are reasons for their use in precision equipment. For example, the service life of high-tech linear modules is basically more than 2000 (km).
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Professional team
Our professional team collaborates and communicates effectively with each other, and is dedicated to delivering high quality results. We are capable of handling complex challenges and projects that require our specialized expertise and experience.
Complete process system
With the production of high-end technology rolling functional components as the main field, the company extracts advanced foreign technical concepts, introduces a number of advanced domestic and foreign special equipment.
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After the transaction is completed, provide installation, training, maintenance and other after-sales services to solve any problems customers.
Targeted services
Targeted services different customers have different needs, and it is necessary to study the personality of customers to develop targeted service plans.
Types of Linear Module
Module base
The module base can be made of granite, steel, machined aluminum, carbon fiber, or extruded aluminum. Granite bases are used in applications requiring precision or thermal stability, steel bases for heavy load applications, machined aluminum for precision applications, carbon fiber for dynamic applications, and extruded aluminum for automation applications (focused on dynamics rather than precision).
Guiding or linear guides
When it comes to linear motors, the guides commonly used are ball recirculation guides, crossed roller guides, or air bearings. The latter are used in test machines with short travel but high dynamics and in metrology applications.
Linear motor
We can divide linear modules according to the type of linear motor, such as ironcore (with iron core) linear motor, ironless (without iron core) linear motor, and tubular motor.
Encoder
Almost all available technologies are used in linear modules, such as optical encoders for high-precision applications, inductive encoders for dirty environments, and magnetic encoders for low-cost applications. Encoders are divided into two main groups: Incremental encoders and absolute encoders. Additionally, there is the possibility of adding functional safety features to comply with en 61508 standards.
1. As well as guiding precision modules and supports thermal deformation. Guiding precision is the exact level of the movement along the rail member guide surface movement of its trajectory . The main factors affecting the accuracy with geometric precision guide rails order of the guide surface , the stiffness of the structure type rail contact precision guideways , the appearance of roughness , guides and support , the guideways film thickness and film stiffness.
Geometric precision linear motion guides generally include: Vertical plane straightness and horizontal plane ; parallelism between the two rail surface . Rail geometric precision error error can be expressed in units of length or full length on the rail on.
2.Precision persistence addition, the accuracy of persistence is the ability of the module during operation to maintain the original geometric precision. Wear persistence module depends on the accuracy of the rail is extremely dimensional stability. Wear and match data guideways , factors force performance , precision, lubrication and protective devices related. Support rails and residual stress within the rail will also affect the accuracy of persistence.
3.Motion sensitivity and precision linear guide motion sensitivity is the minimum stroke motion member achievable ; positioning accuracy is required to stop the movement component in the ability to be able to specify the location . Motion sensitivity and positioning accuracy with rail type , friction characteristics , velocity, transmission stiffness , sports component quality and other factors.
4.Smooth movement of the module is the guiding rail movement smooth performance creeping phenomenon does not occur at low speed movement or trace movement. Smooth and rail construction, matching guideway materials , lubrication conditions, rail movement of lubricant properties and stiffness of the transmission system and other factors.
5. Vibration resistance and stability and stability is the self-excited vibration performance does not appear in the given operating conditions . Vibration is the ability to accept modular deputy forced vibration and shock .
6 .Stiffness which is particularly important for precision machinery and instruments. Modules include deformed body deformation guideway rail contact deformation , deformation of the rail 's ability to resist stress . Deformation will affect the accuracy of the relative position and the guide member. Both should be considered.
Components of Linear Module
As an accessory of automatic transmission, it is used in various industries. In order to meet the growing demand, the combination of linear modules is increasingly used. So what are the main components of linear modules?
Linear guide
The linear guide is the core component next to the linear module. It can support and guide the components to do reciprocating linear motion to achieve some high-intensity related operations. Because the linear guide has strong rigidity and the friction coefficient between the linear guide and the ball is very small, it can well complete high-altitude and high-precision linear reciprocating motion, and has been widely used in fields with high speed and high precision requirements.
Ball screw
The ball screw is also another core component besides the linear module. Its main function is to make the ball and the screw fit each other, thereby reducing friction to a greater extent to complete the conversion between linear motion and rotational motion.
Motor
In all linear modules, there is no shortage of motors, because no matter how high the requirements for running speed or running accuracy are, the motor needs to provide continuous power to achieve this goal. Generally, the configuration of motors is relatively sensitive. For example, stepper motors, AC and DC motors, and even three-phase asynchronous motors can be configured sensitively according to actual application requirements.
Photoelectric switch
The reason why the linear module can complete high-precision operation positioning is closely related to its important component, the photoelectric switch. In fact, it is through the control of the photoelectric switch that the precise and accurate positioning of the linear module can be completed.
The basic components of the linear guide are the guide rail and the slider. The material is mainly wear-resistant high-strength carbon steel and alloy steel. The internal details also include metal bodies, circulation parts, dust-proof parts, adhesive parts, steel balls, etc. It is suitable for linear reciprocating motion environments. It has a higher rated load than linear bearings, and can bear a certain torque together. It can also complete high-precision linear motion under high load.
Application of Linear Module
Medical industry
Linear modules can also be found in the marking of medical devices and drug packaging in the medical and pharmaceutical industries, such as plastic mechanical cover marking, drug delivery inspection, sorting, and packaging.
Electronic products
Electronic semiconductor industry With the great development of innovation and digitalization in the era of science and technology, electronic products have entered all aspects of our daily life. Batteries, IT fields, precision welding, motor welding, sensors, refrigeration accessories welding, light guide plate marking, cables, LCD panel edges, integrated circuit (IC) marking, welding parts laser, soldering, etc. are all inseparable from the application of linear modules.
Light industry, textile, printing and dyeing industry
Dyeing, spraying, crystal crafts processing and other industries developed in high-tech modern daily life such as textile industry and home furnishing field can be applied to motion control to meet people's pursuit of comfortable and elegant life, and can feel the new experience brought by excellent quality. Linear modules reflect their own advantages.
Transportation and logistics industry
Linear modules are used for handling, stacking, sorting, etc. in traditional transportation and logistics industries, which can greatly save costs and complete all operations safely and efficiently.
Printing industry
Realize specific processing technology through personalized customization.
Mechanical and manufacturing processing industry
If you need to build a linear module XY, XYZ workbench, please contact us in time, we will provide you with a full set of solutions.
How to Maintain Linear Module
External cleaning
Keep the equipment neat and tidy. If there is serious dirt, use a soft cloth to absorb a small amount of neutral detergent or alcohol, and wipe it gently. Keep the environment around the equipment neat. It is recommended to clean thoroughly once a week, or to determine the frequency of cleaning depending on the working environment.
Internal cleaning and smoothness
The internal care of the linear module is mainly the protection of the guide rail and the lead screw, because the guide rail and the lead screw directly determine the transmission speed and accuracy of the module, which are replaceable mechanical parts in the equipment. Effective maintenance not only guarntees the accuracy and speed of the equipment, but also extends the service life of the equipment. When the use environment is relatively harsh, the cleaning and smoothing times should be appropriately increased.
How to Choose a Linear Module
What should I pay attention to when choosing a linear module? The linear module, also known as the linear module, can realize the linear and curvilinear movement of the load through the combination of various units, which is more flexible and more accurate in positioning of the light load automation. So what factors should we consider when choosing, let's understand together.
Load capacity
Straight modules usually need to have a certain amount of load, that is, how much weight the module needs to load. At present, many straight module manufacturers can provide products with a variety of loads. The factory must also select the linear module according to the actual weight of the load in the actual production process, otherwise it will cause insufficient linear module load and cause problems in the product line;
Stroke accuracy
Linear module manufacturers with sufficient supply will provide a lot of linear modules with different effective stroke specifications. Effective stroke refers to how long the interval between the movement of the linear module from one end to the other end is related to the fact that the factory can use the linear module The basic requirements on what products, the motion accuracy also requires the factory to choose according to the product, so the effective stroke motion accuracy is the factor that determines the specifications of the linear module when selecting the linear module manufacturer's product;
Configuration
The choice of linear module should also be from the perspective of configuration, such as the screw brand, guide rail, timing belt, switch, etc. of the selected brand specifications. The products of linear module manufacturers also have certain differences in configuration. Determine the configuration of the linear module according to the requirements for accuracy and other aspects when producing the product;
Of course, the linear module manufacturers should pay attention to the price factor of the product when choosing products. The higher the linear module with higher load, the higher the price. The accuracy and movement stroke are also the keys to determine the price of the linear module. The higher the configuration The price of the linear module will also be the highest, so from the perspective of cost control, the manufacturer needs to choose according to its own production situation.
Our Factory
Zhejiang CNCD Transmission Equipment Co., Ltd. is the first national brand enterprise dedicated to providing coordinate manipulator solutions in the field of industrial robots and industrial automation. The company has always been in a leading position in the development of coordinate manipulators. It is the only national brand that uses advanced FA technology to continuously assist the evolution of society and industry. R&D and manufacturing experts. The company's products include multi-axis manipulators, linear motors, precision positioning slides, qianxing slides, heavy modules, ground rails and other high-precision transmission components. The company is a high-tech enterprise integrating design, R&D, manufacturing and sales. We will continue to innovate and focus more on the development of geometric transmission technology and products to provide you with more professional, precise and reliable products and technologies, and contribute to the core components of automation.
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