about The Collet
High Precision, Good Stability, Precision Grinding
Introduction To Collet
A chuck is a cylindrical fixture that is installed on a milling machine to hold a drill bit or milling cutter. It is a kind of fixing device used to fix and strengthen parts that need to be modified.
Common ones include ER Collet, SK Collet, OZ Collet, C Straight Collet, Drill Chuck, etc.
The Structural Principle Of The Collet
CNC milling machine spring collet is a cylindrical clamp used to hold drill bits or milling cutters installed on milling machines. It is a kind of fixing device used to fix and strengthen parts that need to be modified.
The structural principle is as follows: the collet is installed into the locking nut, and then the locking nut equipped with the spring collet is gently screwed on the tool holder, connecting rod or spindle. Be sure to clean the threaded part, positioning surface and cone surface of the spring collet, locking nut. During the installation process of the collet and locking nut, the collet and locking nut must be tilted at a certain angle, and then gently placed into the locking groove of the locking nut.
Collet processing method and production technology
1. Material selection: Good materials are the basis for ensuring product quality. Spring chucks are made of spring steel. Common materials are T8A, 65Mn, 60Si2 Mn, 9SiCr, etc.
2. Hardness: There are many shapes of spring chucks, which are mainly composed of a clamping part, a diameter part (elastic part) and a fixed part. Generally, the clamping part is required to have high hardness to meet its wear resistance requirements. The hardness is between 58 and 63HRC. The middle diameter part (elastic part) is required to have good elasticity to ensure the opening and clamping of the clamping part. The hardness is between 42 and 48HRC and has good elasticity and strength. The fixed part is In order to connect with the machine tool, it plays a positioning role.
3. Process: The usual process flow of a spring chuck is: after the overall spring chuck is quenched + low-temperature tempered, the high hardness of the clamping part is first obtained, and then the fixed part and diameter are quenched in a nitrate salt bath at 380 to 450°C. Local medium temperature tempering treatment is carried out to ensure that the hardness and elasticity meet the technical requirements. Post-surface treatment, final cleaning and packaging.
Key Points For Selection Collet
The advantages of Collet are light weight, fast acceleration, little influence from centrifugal force, high concentricity, fast clamping and rapid replacement of chucks when replacing parts. The suitable workpiece size range is limited and the axial size is long, making it more suitable for small parts.
Product Feature
Professional, Focused, Attentive
ER collet
1. Material 65Mn (after heat treatment, it has tough hardness and willfulness, better wear resistance, good elasticity and longer service life)
2.Hardness HRC44-48
3. Surface roughness is within RZ2.5
4. The clamping range of ER8 is 0.5mm; the clamping range of ER11, ER16, ER20, ER25, ER32, and ER40 is 1mm, but if the hole diameter is less than 2.5, the clamping range is 0.5mm; the clamping contraction range of ER50 is less than 10mm. The shrinkage range is 1mm, and the shrinkage range above 10mm is 2mm.
5. Concentricity is fully inspected according to DIN standards.
6. It has elastic scaling function, wide application range and rich variability.
7. Used to hold drill bits, screw taps, milling cutters, reamers and other tools.
SK Collet
1.Material: 65Mn
2. Hardness: HRC44-48
3. The inner hole is ground multiple times to reach Ra0.4, which acts as a mirror surface.
4. The boss design in front of the collet taper can prevent dust and cutting from entering during operation and extend the service life.
5. The outer circle and end face are ground multiple times to reach Ra0.4, which acts as a mirror.
6. Surface environmental protection special coating treatment improves surface hardness, wear resistance, cleanliness, more stable accuracy, smoother surface, better anti-rust and anti-corrosion effect, more comfortable feel, and more beautiful appearance.
7. The 4° half-cone angle design of the collet has better clamping force and improves anti-seismic performance.
oZ collet
1.Material: 65Mn
2. Hardness: HRC44-48
3. Exquisite workmanship, accuracy within 0.008, high smoothness, stable performance, high work efficiency, and guaranteed quality
4. After heat treatment and cooling and hardening, it has high strength and certain elasticity and plasticity.
5. High precision, high finish, exquisite workmanship, the outer circle and end face have been ground many times to achieve a mirror effect.
6. Durable and long-lasting, with high tensile strength, elastic limit and fatigue strength, extending the life of the chuck and improving the quality of the chuck.
7. Large clamping force and wide application range, suitable for all types of CNC machining centers, milling machines, etc. widely used in milling cutters, boring tools, drill bits, and taps.
C straight Collet
1.Material: 65Mn
2. Hardness: HRC44-48
3. Deflection accuracy: ≤0.01mm
4. Limit the clamping to the tool shank diameter that is the same as the hole diameter.
5. The collet does not have an elastic shrinkage range and emphasizes the clamping force.
6. The tool inserted into the collet must exceed the effective clamping length of the inner hole to achieve effective clamping.
7. It has two accuracy levels: high-precision 0.1mm and ordinary level 0.015mm.
8. Please inform the required accuracy level when ordering
Drill Chuck
1.Material: High quality steel
2. Runout: 0.18mm, ultra-precise and durable.
3. High-precision threads and tapers are tightly mounted on the tool.
4. The sleeve, keyhole and keys are all quenched and formed.
5. Jaws are designed for tight tolerance production drilling.
6. The set of teeth and key holes are formed by cold pressing.
7. Suitable for medium and heavy-duty drilling, capable of high-speed drilling and high clamping force.
8. Suitable for milling machines, drilling machines, lathes, CNC and woodworking machinery.
1. Place the spring chuck groove into the eccentric circle of the nut, and push the spring collet in the direction shown by the arrow.
Push the spring collet in until you hear a click, indicating that the spring collet is in place.
2. Then install the spring chuck tool, which must be in place
3. Install the nut onto the handle and tighten it with a wrench
After loosening the nut from the handle, remove the tool, push in from the front of the collet, while pressing on the bottom of the eccentric circle, push the collet diagonally until the collet and nut disintegrate.
How to maintain the collet
Keep spring collets clean. Before using the spring chuck, the dust, oil, etc. on its surface should be cleaned. You can wipe its surface with a clean cloth or scrub it with a plastic brush. When cleaning, be careful not to use highly corrosive chemicals to avoid damaging the material of the chuck.
Secondly, the wear of the collet must be repaired in time. During long-term use of the spring collet, the jaws will be deformed or worn. At this time, we need to take corresponding measures to repair it. One method is to use a polishing stone or sandpaper to polish the worn parts of the clamp to restore its original clamping effect. Another method is to use welding repair, cold embedding and other methods to repair the deformed part of the clamp and restore it to its original shape.
Third, pay attention to the lubrication of the spring collet. Lubrication can reduce friction and wear of spring collet during use and extend its service life. Before applying lubricant, you need to clean the surface of the spring chuck and open the jaw so that the lubricant can be evenly applied to the surface of the jaw. It is recommended to use mechanical lubricating oil or special chuck lubricant to avoid using excessive lubricant to avoid unnecessary waste and pollution.
Fourth, pay attention to the correct use of spring collet. Correct use is also a way to maintain spring chucks. When using the spring collet, ensure that the force on both sides of the clamp is evenly distributed to avoid excessive deviation, which may cause unnecessary load on the spring collet. In addition, avoid collisions, falls, etc. during use to avoid deformation and damage to the chuck.
Finally, check the status of the spring collet regularly. Regular inspections can help us find problems with the chuck in time and repair them. During the inspection, you can observe the wear and damage of the clamp and check whether the thread of the clamp is loose. If problems are found, corrective measures should be taken promptly to ensure the normal operation of spring collet.
In short, the maintenance of spring collet is an important part of extending its service life and improving work efficiency. Through regular cleaning, repair, lubrication, correct use and inspection, etc., the chuck can be kept in good condition and the reliability of the clamping effect can be ensured. At the same time, it can also effectively reduce
Our Company
Dezhou Newrgy Co., Ltd. is a powerful private enterprise specializing in the production, sales and testing of machine tool parts. It mainly produces chucks, tool holders and related accessories, with a complete range of products and complete specifications. The chucks include ER chucks, 5C chucks, R8 chucks, sealing chucks, pullback chucks, tapping chucks, etc.; tool holders include BT type, ISO type, CAT type, DIN69871 type, DIN2080 type, NBT type and HSK series. In addition, we also produce precision vises, rivets, clamping nuts, wrenches and other accessories. The products are exported to Europe, America, East Asia, and Southeast Asia, and have won the trust of customers. We fully develop domestic and international business and have independent import and export licenses, which can guarantee product quality. While ensuring that we provide quality services to our customers, we relentlessly control quality and continuously improve our service levels. We will persist in innovation, promote industry development, strive to increase market value, and promote Made in China to Create in China
Factory
The company covers an area of 22,000 square meters, with independent production workshops, inventory workshops, and office areas. With more than ten years of production experience, we provide you with the highest quality products and the most considerate services.
Equipment
Since its establishment, the company has continuously introduced advanced mechanical equipment, such as CNC milling machines, lathes, machining centers, high-precision grinders, precision dynamic balancing equipment, tool testing instruments, etc.
Stock
The company's products are diverse, with sufficient inventory and short delivery times, and can also meet your one-stop shopping needs.
team
Professional technical staff and sales team can provide you with the best quality technical products and services. If necessary, please contact us as soon as possible.
why choose us
Professional, Focused, Attentive
why choose our products
1. Ensure quality, mainly reflected in true accuracy.
2. Huge production capacity to ensure on-time delivery
3. Manufacturers who can accept OEM services.
4. Professional sales team and engineers.
5. Sufficient domestic and foreign sales experience
6. Respond promptly, within 15 minutes
7. Never stop innovating and improving.
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We're well-known as one of the leading collet manufacturers and suppliers in China. Please feel free to wholesale high quality collet at competitive price from our factory. For more information, contact us now.
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