Frequently Asked Questions_Maoming

Small (linear guide) clamps have a big role.

The working principle of a gripper is based on the principle of friction. Gas enters the gripper through the inlet, pushing the piston to generate thrust, which in turn drives the wedge block. The wedge block pushes the friction block through rollers, pressing it tightly against the side of the guide rail, generating positive pressure and thus friction, achieving clamping and braking functions. When clamping needs to be released, the gas is discharged from the outlet, pushing the piston to move in reverse. The wedge block returns to its original position under the action of the spring, and the friction block disengages from the side of the guide rail. Grippers are available in normally open and normally closed types. Today, we will introduce the normally closed gripper, which is in a state where it is opened by air and clamped when the air is cut off. A picture of a normally closed gripper is shown below. It is clearly visible from the picture that the normally closed gripper has more "legs" than the normally open one, which makes it easy to distinguish. Grippers can be used on many guide rails, such as the commonly used THK linear guide rails, HIWIN linear guide rails, and HTPM linear guide rails. Normally closed grippers come with a small insert. Before use, this insert must not be removed, otherwise, the gripper will be damaged. The small gripper has a great effect, which can fix the workbench, precisely position, prevent vibration, improve rigidity, and provide emergency braking. It has many uses.

2025

Introduction to linear guide slides

The slider is a key component of the linear guide slider, usually sliding on the guide rail to support and guide the moving parts to perform reciprocating linear motion in a given direction. The combination of the slider and the guide rail enables mechanical equipment to achieve linear motion and withstand heavy loads, ensuring the stable operation and precision of the mechanical equipment. Common guide rail brands include THK linear guide sliders, HTPM Kait linear guide sliders, HIWIN (Taiwan) linear guide sliders, etc. The above image shows a THK linear guide slider. The image shows how the slider and guide rail work together and how they are installed. The two ends of the THK linear guide slider are black, which is one of its characteristics. It gives a high-end and atmospheric feeling, and its quality is also top-notch in the industry. It is favored by industry professionals. THK linear guide sliders are available in both domestic and imported versions to meet the needs of different people. The above image shows a Kait THPM guide slider. The image shows that this is a flange-type slider. The two ends of the Kait slider are bright sky blue, giving it a vibrant feel. The Kait HTPM linear guide slider is a domestic brand with a long history and a good reputation for quality. It is also favored by patriotic people. With its superior technology, the Kait HTPM linear guide slider has carved out a path in the linear guide rail industry. We believe that the Kait HTPM linear guide slider brand will become better and better and will go further and further. The above image shows a HIWIN linear guide slider. It can be seen that the HIWIN brand has fresh and vibrant green and red at both ends. HIWIN is a Taiwanese brand with a high cost performance and is also very popular in the industry. It also has a good reputation for quality. In summary, each brand has its target audience, and the specific choice depends on everyone's needs.

2025

Introduction to a normally open clamp

Normally Open Pneumatic Clamp Working Principle: The normally open pneumatic clamp operates based on pneumatic control. Without air pressure, the clamp remains open, ensuring smooth production line operation. Upon receiving a pneumatic signal, the clamp quickly closes, utilizing a wedge block amplification principle to tighten the clamping mechanism via air pressure. The clamp is compatible with various brands of linear guides, such as THK linear guides, HIWIN linear guides, and HTPM linear guides. As shown in the diagram, the clamp consists of a clamp body, actuator, clamping element, and contact element. It is a high-performance functional component used with rolling (THK) linear guide units and linear shafts, providing functions such as worktable fixation, precise positioning, vibration prevention, and rigidity enhancement. The normally open clamp has four mounting holes. A connecting component is needed between these holes and the slider for installation. The red box in the diagram indicates the clamp's contact element, which provides emergency clamping. Application Scenarios: Normally open pneumatic clamps play a crucial role in new energy vehicle production lines. From battery module assembly and motor installation to body welding and final assembly line inspection, their precise, stable clamping ability and rapid response provide strong technical support for the automated and efficient operation of new energy vehicle production lines. Furthermore, normally open pneumatic clamps incorporate intelligent technology, enabling seamless integration with the production line control system. Through real-time monitoring and data analysis, they can automatically adjust clamping strategies based on actual production line conditions, ensuring process stability and safety.

2025

What should be noted when installing the clamp?

The following points should be noted when installing a clamping device: 1. Installation timing: Clamping devices are usually installed after the linear guide and slider are installed. It is recommended to install them between two sliders. There are many types of clamping devices on the market now, and different guides are suitable for different brands of guides, such as THK linear guides, HTPM linear guides, HIWIN linear guides, etc. You need to determine the brands that can be used. 2. Pre-tightening and fixing: Hand-tighten the screws of the clamping device to temporarily pre-tighten and fix it on the slider. Then, use a torque wrench to tighten the bolts to the specified torque. 3. Interference check: In the state where the clamping device is clamping the guide rail, release the clamping state and confirm whether the contact surface of the clamping device interferes with the guide rail. If necessary, readjust the clamping device. 4. Air pipe connection: When connecting the clamping device to the pressure air pipe, the length of the air pipe should be shortened as much as possible, because the longer the air pipe, the longer the reaction time. After connection, check for leaks. 5. Operation specifications: Operate according to the assembly specifications of the clamping device. Do not arbitrarily change the assembly sequence or method, and follow the relevant safety operating procedures. By following the above precautions, the correct installation of the clamping device can be ensured, thereby improving the operating performance and service life of the mechanical equipment.

2025

What should be paid attention to when maintaining guide rail slides?

When maintaining linear guide sliders, the following points should be noted: 1. Cleaning and maintenance: Regularly remove dirt, dust, and grease from the surface of the (THK) linear guide and slider to keep the transmission components clean and dry. A clean cloth or special cleaning agent can be used to wipe, preventing fine dust from entering the slider and increasing wear. 2. Lubrication: Select the appropriate lubricating oil or grease according to the usage conditions and requirements of the (HTPM) linear guide slider. Regularly check the quantity and quality of the lubricating oil, and add or replace it according to the manufacturer's recommended specifications. When using grease lubrication, it is recommended to wipe off the rust preventive oil on the surface of the linear guide and slider before filling the entire internal space of the slider with lubricating grease; when using oil lubrication, the slider should be filled with oil for the first time, and then oil should be added according to factors such as the nominal width of the Hiwin linear guide. 3. Avoid overload: Avoid operating the HIWIN linear guide slider under overload conditions to prevent damage caused by overload. The specifications and parameters of the transmission components should be reasonably matched during design and use to ensure that their load-bearing capacity meets the actual work requirements. 4. Regular inspection: Regularly check the wear and tear and operating status of the HIWIN linear guide and slider, and observe whether the movement accuracy of the slider has decreased, and whether there is wear or scratches on the surface of the guide. If serious wear or abnormal phenomena are found, they should be replaced or repaired in time to ensure the normal operation of the equipment. 5. Protective measures: Adopt appropriate protective measures according to the different usage environments. For example, in environments with a lot of dust, dustproof devices can be installed; in oily, humid working environments, foldable protective covers are best used; when there is a lot of water and debris, telescopic plate protective covers can be used to prevent the linear guide slider from being polluted and damaged. In summary, when maintaining linear guide sliders, attention should be paid to cleaning, lubrication, load, inspection, and protection to ensure normal operation and prolong service life.

2025

What manufacturing process is used for THK linear guides?

The manufacturing process of THK linear guides mainly includes the following steps: 1. Material Selection: Mostly chromium bearing steel, sometimes carburizing bearing steel is used. These materials have excellent mechanical properties and wear resistance. 2. Cutting: The raw materials are cut to the required length and shape according to the design drawings. This process ensures the flatness and accuracy of the cutting surface. 3. Heat Treatment: Includes quenching and tempering to improve the hardness and wear resistance of the THK linear guide and eliminate processing stress. Through special heat treatment, a 100% martensite structure can be formed on the surface, with a hardness of up to HRC58-62. 4. Grinding and Polishing: After cutting, the guides need grinding and polishing to improve their surface finish and dimensional accuracy, further reducing friction and wear. 5. Precision Coating: To improve the wear resistance, corrosion resistance, and oxidation resistance of the guide, precision coating treatment, such as electroplating or chemical plating, is usually required. 6. Assembly: The processed guide and slider components are precisely assembled to ensure the overall performance of the linear guide. The assembly process needs to strictly control the assembly position and dimensions. 7. Quality Inspection: After assembly, the THK linear guide needs comprehensive quality inspection, including dimensional accuracy, surface finish, wear resistance, and corrosion resistance, to ensure that the guide meets the quality requirements. In addition, THK linear guides use multiple patented technologies, such as ball retainer design, to improve their performance and stability. These processes and technologies together ensure the high quality and excellent performance of THK linear guides.

2024

What are the characteristics of THK's SHS series guide rails?

The THK SHS series linear guides are characterized by the following aspects: 1. High precision and high rigidity: Through its precise design and manufacturing, the THK SHS series linear guides provide stable, high-precision linear motion. At the same time, its high rigidity design allows the guide to maintain stable performance under load. 2. 45° contact angle configuration: The ball rows of the THK SHS series linear guides are configured at a 45° contact angle, allowing for use in any posture and providing the same rated load in four directions (radial, anti-radial, lateral). Therefore, it has wide applicability. 3. Low center of gravity design: By miniaturizing the cross-sectional dimensions of the LM guide, the THK SHS series linear guides achieve a low center of gravity design, which not only enhances the stability of the guide but also helps improve the overall performance of the equipment. 4. Self-aligning capability: The THK SHS series linear guides have a unique self-aligning capability that can absorb installation errors, resulting in high-precision, smooth, and stable linear motion. 5. World standard dimensions: The dimensions of the THK SHS series linear guides follow the world standard developed by THK, allowing for wide application globally and easy integration with other equipment or systems. 6. Considerable load capacity: The load capacity of the THK SHS series can meet the needs of general industrial equipment and is suitable for general applications in various industrial fields, such as general machine tools and automated equipment. In summary, the THK SHS series linear guides, with their high precision, high rigidity, low center of gravity design, self-aligning capability, world standard dimensions, and considerable load capacity, are widely used in mechanical design and manufacturing.

2024

Does splicing the guide rail affect the slider's operation?

Linear guide rail splicing affects slider operation, mainly in the following aspects: 1. Splicing accuracy: If the guide rail splicing is not accurate, there are gaps or unevenness, the slider will be subjected to additional resistance and impact during sliding, increasing friction and wear, and may also cause vibration and noise, thus affecting the running efficiency and stability of the slider. Brands we know include THK linear guides, original Japanese THK linear guides, HTPM Kate linear guides, HIWIN linear guides. In addition to the difference in brands, it is also important to note whether they are domestic or imported products, which greatly affects the accuracy. 2. Material matching: The materials of the linear guide rail and the slider should be matched to reduce wear and corrosion. Differences in materials may lead to incompatibility at the splicing point, thus affecting the smooth operation of the slider. This requires the use of guide rails of the same brand. One section cannot use THK linear guide rails and another section use HTPM Kate linear guide rails. It should also be noted that THK is divided into THK linear guide rails and original Japanese THK linear guide rails. 3. Lubrication effect: The splicing of linear guide rails may affect the uniformity of the lubrication system, leading to poor lubrication, increased friction coefficient, and reduced movement efficiency of the slider. Therefore, during the guide rail splicing process, the splicing accuracy should be ensured, high-quality and matched guide rail and slider materials should be selected, and the lubrication system should be improved to reduce the adverse effects on the slider operation.

2024

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