Characteristics and selection of powerful milling collet chuck
(1) On clamping force For example, for a strong milling cutter shank with clamping force of 300kg · m, the highest actual cutting torque of Φ 32 milling cutter is less than 60kg · m, even if the safety rate is considered, 250kg · m is fully enough. (2) The inner diameter has enough shrinkage In practical application, there are many occasions where the
Basic knowledge sharing of toolholder
Taper classification of toolholder There are usually five standards and specifications for universal toolholder with taper of 7:24, namely NT (DIN 2080 / ISO 2583 type), DIN 69871 (German standard), IS0 7388 / 1 (International Standard), MAS BT (Japanese standard) and ANSI / ASME (American Standard). 1) Din 2080 (NT or ST for short) Din 2080 is a G
How to improve the surface finish of toolholder?
The name of a process after finishing grinding and before coating is not unified at home and abroad, such as "edge passivation", "edge strengthening", "edge honing", "edge preparation" or "Er (edge radiating) treatment". Through deburring, leveling and polishing, the quality and service life of the tool can be improved. 1. Purpose of tool passivation and polishing: 1. Improve the service life of cutting tools
How to improve the surface finish of toolholder?
Product Description: the name of a process after finish grinding and before coating of cutting tools is not unified, such as "edge passivation", "edge strengthening", "edge honing", "edge preparation" or "Er (edge radiating) treatment". Through deburring, leveling and polishing, the quality and service life of the tool can be improved. 1. Purpose of tool passivation and polishing: 1. Improve the service life
What is the classification of machining center?
CNC milling machine is an automatic processing equipment developed on the basis of general milling machine. The processing technology and structure of the two machines are basically the same. CNC milling machine can be divided into two categories: without tool library and with tool library. The CNC milling machine with tool magazine is also called machining center. 1. Classification by tool change form (1) The tool c
Is the angle of ISO toolholder the same as that of BT toolholder
1. ISO toolholder standard refers to the standard formulated by the international organization for Standardization (ISO). In October 1946, leaders from 25 national standardization organizations met in London to discuss the establishment of an international organization for standardization. They called the New Organization ISO, the abbreviation of international organization for standardization. The meeting unanimously adopted the ISO constitution and rules of procedure. On February 23, 1947, ISO began to operate. Its central office is located in G
There are so many types of toolholder, which one is easy to use
As we all know, the toolholder is a spindle for connecting tools, so it is a very important part. For different tool types, the tool holder model is also different. There are many types of toolholders. At present, the main standards include several types of toolholder, such as BT, SK, capto, BBT, HSK, etc. BT and BBT are Japanese standards, and now they are also a standard spindle commonly used. SK is the standard spindle in Germany. BT, SK is a simple, popular spindle connecti
Do you know the application and product characteristics of high speed toolholder
Facing the challenge of flexible and efficient production in modern manufacturing industry, the increasingly fierce market competition and the pressure of reducing manufacturing cost, high-speed machining has become the key point to enhance the competitiveness of manufacturing industry. High speed machining is different from traditional machining. In contrast, the high-speed machining spindle speed is high, the cutting feed speed is high, and the cutting amount is small, but the material removal amount per unit time is increased by 3-6 times. Wit
Matters needing attention in use of telescopic torque tapping tool holder
1. Telescopic mechanism of tapping toolholder The tapping tool handle has its own telescopic mechanism. This is to prevent double screw and tap pitch and mechanical feed can be smooth synchronous. It must be used within the range of expansion and contraction. ① . excessive elongation When the elongation limit is exceeded, the black mark will come out. Please spe
What should be paid attention to when using the tool holder
When selecting products 1. Check the size and shape of spindle hole and toolholder. 2. Select the cutting tool with suitable size and shape and matching with the tool holder. 3. Select suitable cutting conditions. When handling products 1. W
What is the difference between BT and JT
Most JT tool holders have internal cooling channels to support cooling in the center of the spindle or (and) in the face of the spindle. The main structure is shown in the figure below. BT handle is Japanese standard, shoulder size is larger than JT, so the tool weight is increased. There is positioning on 180 degree circle, and there is no positioning gap unfavorable to dynamic balance. Most of the BT handles do not have internal cooling channels, and some can provide BT tool holder with int
Matters needing attention in use of telescopic torque tapping toolholder
1. Telescopic mechanism of tapping toolholder The tapping tool handle has its own telescopic mechanism. This is to prevent double screw and tap pitch and mechanical feed can be smooth synchronous. It must be used within the range of expansion and contraction. ① . excessive elongation When the elongation limit is exceeded, the black mark will come out. Please spe
What is the classification of machining center?
CNC milling machine is an automatic processing equipment developed on the basis of general milling machine. The processing technology and structure of the two machines are basically the same. CNC milling machine can be divided into two categories: without tool library and with tool library. The CNC milling machine with tool magazine is also called machining center. 1. Classification by tool change form (1) The tool changing
A variety of tool holder selection skills, work easier
Tool handle specification The 7:24 taper tool holder is used in most CNC tool handles, and the corresponding type of tension structure of the rivet is used to match with the spindle of the machine tool. There are various specifications of toolholder, commonly used are 40, 45 and 50. At present, iso7388-1983, GB 10944-1989, MAS 403-1982, ANSI / ASME b5.50-1985 are widely used in China. When selecting the tool holder, it should be considered that the specification of the tool hol
In CNC machine tools, what is the relationship between the toolholder and the toolholder?
1. Reduce tool types: (1) The tool is composed of cutting part and clamping part. (2) There are dozens of standard forms for the installation of cutting tools. (3) If the tool is directly connected to the machine tool, different clamping parts should be made for the same cutting edge. This is obviously uneconomical and unrealistic.
Change of spring after unloading of spring collet
What are the capabilities of the spring collet: The spring collet is made of alloy steel with good elasticity. After heat treatment, the outer cone of the head and the inner wall of the collet have high density to protect the strength and wear resistance. Each size of spring collet can clamp the workpiece in a very small size environment, so it is mostly used in self-propelled lathe and other efficient automatic machine tools. The combination of spring chucks is more real, rigid, able
What are the advantages of the side fixed handle
Side fixed handle: it refers to the tool whose handle is flattened, which is usually used for quick drilling. The advantages are: high degree of clamping and concentricity, commonly used for connecting thread milling cutter, milling cutter, drill bit, large clamping force, suitable for machining with large cutting force. However, a bit of one size needs to be equipped with a chuck correspondingly, with many specifications. Secondly, it may cause the bit and the spindle are not concentric, which may cause damage to the bit during processing.
What is the inspection standard of knife handle
Tool holder is the link between machine tool and tool. There are many parameters to be tested for the tool shank, but the most important parameters are the taper angle of the taper shank and the circular runout of the tool holder part. Tool holder is the link between machine tool and tool. There are many parameters to be tested for the tool shank, but the most important parameters are the taper angle of the taper shank and the circular runout of the tool holder part.
What are the advantages of the side lock tool holder?
Side fixed handle: it refers to the tool whose handle is flattened, which is usually used for quick drilling. The advantages are: high degree of clamping and concentricity, commonly used for connecting thread milling cutter, milling cutter, drill bit, large clamping force, suitable for machining with large cutting force. However, a bit of one size needs to be equipped with a chuck correspondingly, with many specifications. Secondly, it may cause the bit and the spindle are not concentric, which may cause damage to the bit during processing.
What is the use of CNC tool holder
There are two kinds of structural forms of tool shank in CNC machine tools: integral type and modular type. The working part of the clamping tool of the integrated tool handle is integrated with the handle for installation and positioning on the machine tool. This kind of tool handle has poor adaptability to the transformation between machine tool and parts. In order to adapt to the transformation of parts and machine tools, users must reserve various specifications of tool holders, so the utilization rate of tool holders is low. Modular tool sys
What should be paid attention to in toolholder collet chuck care
Tool holder is an important connecting accessory of machine tool and cutting tool. The connecting part of the machine tool and the handle, the handle and the cutting tool are mostly used for metal processing. They should not be stained with metal powder and impurities, and should be kept clean at all times. To avoid damage to the handle. In order to ensure the accuracy, the important mating surface cannot be treated after grinding. Knife handle care notes:
How to maintain CNC tool holder?
Tool holder is an important connecting accessory of machine tool and cutting tool. The connecting part of the machine tool and the handle, the handle and the cutting tool are mostly used for metal processing. They should not be stained with metal powder and impurities, and should be kept clean at all times. To avoid damage to the handle. In order to ensure the accuracy, the important mating surface cannot be treated after grinding. Maintenance method of CNC tool shank:
HSK tool holder is the best tool for high-speed cutting. It has become an important part of machining technology in high-speed cutting. After several revisions, the international organization for standardization issued the formal ISO standard iso12164 for HSK tool system in 2001. At present, HSK (German abbreviation for Hohl shaft Kegel) tool system, KM tool system in the United States, NC5 and BIG-PLUS tool system in Japan are widely used in high-speed cutting, all of which belong to
The difference between BT Tool Holder and SK Tool Holder
Sk hilt belongs to high speed hilt, which is a type of BT hilt. The taper hole of machining center can be divided into two categories: general system with 7:24 taper and HSK vacuum system with 1:10 taper. There are five standards and specifications for universal tool shank with 7:24 taper, namely NT (traditional type), DIN 69871 (German standard), IS0 7388 / 1 (International Standard), MAS BT (Japanese standard) and NSI / ASME (American Standard). At present, DIN 69871 (JT) and MAS BT are the most widely used tool handles in China.
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