Ettevõtte nimi:BEIJING DEMINA PRECISION MACHINERY CO., LTD Tel 0086-10-62965622 0086-13910819265 Meil:[email protected] Aadress: No.1034, Building A, Hongfu Science Park, Beiqijia Town, Changping District, 102209, Beijing, China
The manufacturing process of PCBN tool
1.PCBN tool embryo synthesis
PCBN composite sheet is directly in the high temperature and high-pressure CBN layer and cemented carbide substrate composite together. After cutting, welding technology into a variety of welding molding cutting tools or blades. Synthetic equipment used in foreign synthetic equipment for the two-sided top press, most of the domestic six-sided top press.
2. PCBN tool geometric parameters
The service life of the PCBN tool is closely related to its geometric parameters. Chip removal ability and heat dissipation ability. The size of the front Angle directly affects the stress of the cutting edge and the internal stress of the blade. In order to avoid excessive tensile stress caused by mechanical impact on the tooltip, a negative front Angle (-5) is generally adopted.~ -10. At the same time, in order to reduce back Angle wear, the primary and secondary back Angle is 6., the radius of the tooltip is 0.4 -- 1.2mm, and the chamfering is ground and smooth. is a good precision equipment for grinding the PCBN tool.
3. PCBN tool inspection
In addition to testing hardness index, mild bending resistance, tensile strength, and other physical properties. It is more necessary to use a high power electron microscope to check the surface of the PCBN tool and blade processing accuracy. Then there is dimensional inspection, precision inspection, M value, as well as geometric and positional tolerance, roughness, and then packaging and storage.
CNC tööriistateritusmasin on kõrgel tasemel paindlikkus ja võib vastata individualiseeritud tootmise vajadustele reaalajas tootmises. Viimase kümne aasta jooksul on see kiiresti arenenud ja isegi traditsioonilised mehaanilised pressid on hakanud kasutama CNC tehnoloogiat.Nagu me kõik teame, metallitöötluses on tööriistade kulud ainult osa kogu tootmiskuludest, kuid kogukulude osa on otsustava tähtsusega. Seetõttu on lisaks tööriista enda kulude kontrollimisele parem kasutada tööriista mõistlikult, täiustada tootmisvõimsust täielikult, lühendada töötlusaega ja lõpuks vähendada töötluskulusid.Meie masina tööriistade müügiprotsessis arutame sageli klientidega, miks soovite osta CNC-tööriistade lihvimismasinat? Tavaliselt saame vastuseks: lõppkasutajad seavad tööriistadele üha kõrgemaid nõudmisi. Minevikus ei suutnud lihtsa ja käsitsi varustusega jahvatatud tööriistad enam vastata lõppkasutajate töötlusnõuetele täpsuse ja kuju osas.CNC tööriistateritustöötlusmasina töölaua konstruktiivne disainbuilding
Hoone struktuurse kujunduse disainCNC tööpink freespinki masinTööpink tavaliselt vastab järgmistele nõuetele:1. Tööriista jahvatamine nõuab sageli kõikide lõikepindade esialgse töötluse läbiviimist ühes klambrites, ning töölaud peab olema võimeline töötlema mitut jahvatusketast.PCD tööriista lihvijamasin tööriista puhul koosneb peamiselt mitmetest keerukate kumeruste pindadest, seetõttu peaks töölaua struktuur vastama mitme teljega lülitusprotsessi nõuetele, et tagada igas liikumisteljes liikumistakistuste puudumine tööulatuses.Töölaua ülesanne pole mitte ainult vastu pidada suurele jahvatamisjõule, mis tekib jämejahvatusel, vaid tagada ka kõrge täpsus viimistlemisel. Seetõttu nõutakse masinalt head jäikust, stabiilsust, liikumistäpsust ja madalat soojusdegeneratsiooni.
Note on cutting tool purchase - Tool class
Whatever tool you choose, know this:
What is the material processed? With what machine tools?Finish or rough? Is there any drawing requirement? What is the compression method? How square is the knife? Blade type?
1. External turning tool:
What is the main deflection Angle of the cutter? Is there any drawing requirement? What materials are processed? Is there any hardness requirement?
2. Inner hole turning tool:
What's the diameter? How deep is the hole? What is the inner diameter of the tool sleeve? Does the hole interfere?
3. Groove cutting knife
How deep should I cut it? How wide is the slot? Is it end groove \ cylindrical groove or inner hole groove knife? What are the maximum and minimum machining diameters? (end face slot knife)
4. Cutting knife
What is the diameter of the cut? How wide is the slot?
5. Thread turning tool:
Thread tool forehand and backhand?External thread or internal thread?Metric or British? What is the pitch?
Cutter holder class
Milling cutter :(take machining center as an example)
The connection between the tool and the machine
1.Clamping drill bits:
Elastic chuck or three-jaw centering class? How big is the cutter?ER?
What size handle of the taper handle class? What's the length?
2.Clamping type of milling cutter:
What is the size of the milling cutter to be clamped? Strong or standard or fast?
What type of handle is the taper handle? How big is the threaded hole?
3.Clamping thread tapping:
Is it rigid tapping or flexible tapping? What size tap?
4.Clamping face milling cutter disc class:
What is the diameter of the cutter plate? How big is the inner circle of cutter disc? Metric or British? Are there any length requirements?
Coarse boring cutter
Modular or integral? What is the range of processing required? Length of processing? Do you require an additional extension rod?
fine boring cutter
Modular or integral? What is the machining accuracy? What is the length of processing? Is the extension rod required to increase the machining range?
6.The knife instrument:
Table or digital display or projection? What is the range of measurement? What is measurement accuracy?
The cutting tool class
Integral milling cutter
High-speed steel or hard alloy for end mill? How much is the hardness of processing? Less length requirement?How many blade?Ball or crew cut? How much is the handle? How many threads? What kind of coating? What is the Angle of spiral rise?
Blade type milling cutter
1. Spindle type milling cutter
What is the diameter? Are there any requirements for blade Angle? How long is the machining length?
2. Knife plate
What's the diameter? What is the Angle of the blade? Finish or rough? Are there any requirements for tool clearance?
1) straight shank drill
Is the required bit high speed rigid or carbide? What is the machining diameter? What is the depth of processing? Are there any requirements for the blade?
2) taper shank drill
What size is the original toolset? What is the machining diameter? What is the required depth of processing? Are there any requirements for the blade?
1) screw tapping
Left-handed or right-handed tapping? What is the required thread size? Is it metric or British? What grade is the machining accuracy? What is the material processed? The standard of which country?
2) straight groove tapping
What is the material processed? Is it a hand or machine?
What is the range for chamfering? What is the Angle?
1) straight shank reamer
What is the depth of processing? What is the accuracy of machining? What is the diameter of the machining?
2) taper shank reamer
What size is the original cone sleeve? What is the depth of processing? What is the accuracy of machining? What is the diameter of the machining?
BT-150N universaalne tööriista teritaja töölaud kasutab liugurduugelraile, millel on hea jäikus, tasakaalustatud laud ja kerge töötamine. Tööriista terituse pink kasutab kõrge täpsusega topeltlineaarset rulljuhikut, mis tagab kõrge stabiilsuse ja kerge tasakaalu. CNC tööriista teritamise masina mootor saab pöörata 360°, lihvimisketta mõlemale poolele, erinevate materjalide tööriistade teritamisel tuleb ainult lihvimisketast keerata, mis suurendab ohutust ja vähendab lihvimisketta vahetus- ja kleitimise aega ning suurendab tööriista teritamise juhitavust. Seade kasutab kõrge tugevusega FC30 materjali, mis võib säilitada mehaanilise täpsuse pikka aega.CNC tööriistade lihvpingi struktuuri konfigureerimineBT-150N numeriliselt juhitav CNC-tööriista teritamismasin.Kasutatakse tuntud kaubamärgiga kõrge võimsusega elektrimootorit, mis on varustatud spetsiaalse õlisüsteemiga. Masinal on hea dünaamiline jäikus ja sellel on täisdigitaalne servo süsteem, mis on varustatud kahe sondi süsteemiga töödeldava detaili ja lihvimisketta jaoks. See võimaldab automaatselt mõõta lihvimisketta välismõõtmeid ja väliskontuuride heliksnurka ning vajalikke tööriistade tootmises ja lihvimisel. CNC kõrge kiirusega servo positsioneerimine, kasutades silindri tasakaalu süsteemi, reageerib kiirelt.Edastamise osad:See võtab kasutusele imporditud brändi servomootorid, lineaarjuhikud, kuulikruvid ja imporditud laagrid.Eriprogrammide erivahend:3-teljeline CNC-tarkvara on väga paindlik ja võib töödelda mitmesuguseid keraamilisi freesimisketaste, astmeliste puuride, lõikurite, vormidega lõikurite, püssipuuride, hammaste lõikurite, pöörlevate lõikurite ja muude eritöödegi.Seadmet saab varustada spetsiaalse tööriistade teritamise tarkvarapaketiga ja automaatse laadimis- ja mahalaadimissüsteemiga vastavalt klientide erinõuetele. Sellel on võimsad funktsioonid ja see suudab rahuldada klientide erinevaid lihvimisvajadusi mitmes aspektis.Tööriista teritamise tarkvaral on 2D ja 3D demonstreerimisfunktsioonid, mis võivad täielikult kuvada tööriista töötlemise kuju, vältida parameetri sättevigade põhjustatud kahjustusi tööriistale ja masinale ning vältida masina tööriista häireid ja kokkupõrkeid.Saab sadade tööriistaparameeteri mudelit saab salvestada, mis on mugav kasutajatele erinevat tüüpi toodete tootmiseks. Masina seadistuste kohandamine pole vajalik, piisab vastava tööriistamudeli kutsumisest tootmiseks, mis on mugav ja kiire.3-teljeline lõikepeenestusmasin on lihtne seadistada ega nõua operaatorilt liiga palju oskusi. Ainult tööriista parameetrid tuleb sisestada.
Requirements OF BT-200 tool grinder
When operating BT-200 universal tool grinder, check that the electrical system (motor, distribution box, safety light, wire, grounding wire) is good. No short circuit and the surrounding environment should clean.
Lubricate the oil in the lubrication area as specified in the Piston Cup Foreign Grinding Machine Instructions. Turn on the main power supply, start the motor such as the oil pump. In turn, pay attention to the operating status, and find the abnormality. If the difference is abnormal, the power should turn off immediately. And the vehicle should drive after inspection. Start the piston cup foreign grinding machine, idle for 3min. Check whether the movements of each part are normal. Whether the sound is normal, and whether the coolant is unblocked. Before installing the grinding wheel, the grinding wheel should protect from moisture. And the grinding wheel should test for static balance. It is forbidden to have cracks in the grinding wheel. When installing the grinding wheel, it is necessary to pad the paper pad between 0.5-1.0mm between the grinding wheel and the pressure plate and use a special wrench to evenly tighten it. Do not use the long tube to tighten, so as not to cause the grinding wheel to burst.
is used frequently in factories and other places. In order to reduce the possibility of accidents during the whole operation, we need to do some preparatory work before using it. The specific requirements are as follows. Before the preparation PCD&PCBN insert grinding machine, first check the environment to be used by the tool grinder to ensure that there is no debris in the entire operating space. So as to avoid the occurrence of damage caused by the debris. Estimate the maximum force required for the upcoming lifting operation in order to select the right tonnage tractor to work in order to avoid the danger of overloading. Safety inspection of each component of the selected tractor and timely maintenance of components with abnormal conditions to reduce the possibility of emergencies during use.
Eliminate errors of BT-200 universal tool grinder
BT-200 universal tool grinder There are three main methods for eliminating errors.
Automatic control method. Let the processing system form an automatic processing cycle system. So that the measurement, adjustment and other work can do automatically in the process of the process, the trial cutting method. Through the trial cutting, some rules can find to eliminate the error. The sizing tool method uses a tool with a certain shape and size to meet the shape and size of the processing requirements.
When the water and oil quantity of the Universal tool grinder water tank is insufficient, it needs to be added in time. When processing, it is necessary to timely repair the processed parts, and then check if there is no problem before starting normal use. The process should sharpen with sharp diamonds and coolant is required.
Technical analysis of tool grinding machines. First, check the level. If the level of the machine's foot screw is not adjusted, it will cause the machine to resonate. Because sometimes the ground level of the processing site is not very good, it is necessary to adjust the horizontal screw to make the machine reach an uneven height. First, we must check whether each screw of the foot is put into place in the floor mat. Before and after the level is used, the left and right sides are horizontal and the screws are locked.
The dressing method of the diamond grinding wheel dresser is an important factor affecting the grinding performance of the grinding wheel. The reasonable selection of dressing method will directly affect the surface quality and grinding precision of the workpiece. At present, the commonly used dressing methods of diamond grinding wheel dressing machines include on-line electrolytic dressing, EDM grinding wheel dressing, cup grinding wheel dressing, electrochemical-mechanical compound dressing, and laser dressing. Since the dressing method of the cup wheel is simpler and easier to implement than other dressing methods, GC cup wheel dressing technology is adopted in this paper for the automatic dressing of diamond wheel dresser.The dressing of the superhard abrasive wheel of the diamond grinding wheel is usually divided into two stages: shaping and sharpening. The purpose of shaping is to remove the shape error and surface defect of the grinding wheel after initial installation and to ensure the geometric shape precision of the grinding wheel. Sharpening is due to the passivation of the grinding wheel after working for a period of time. In order to make the cutting edge protruding the binder and having an appropriate height, sufficient chip tolerance space should be formed between the grinding grains, and the effective number of grinding grains per unit area should be as large as possible.
The improvement and development of turning tool material are one of the important issues in the development of metal processing today because good tool material can effectively and quickly complete the cutting work, and maintain a good tool life. Commonly used turning tool material has the following kinds.
Types and uses of turning tools
1. High carbon steel
A high carbon steel turning tool is a kind of carbon steel with a carbon content between 0.8% and 1.5%. It is used after quenching and hardening. The use range of high carbon steel turning tools is not very wide, usually only suitable for cutting of soft metal materials, commonly used are SK1, SK2, SK7 and so on.
2. High-speed steel
High-speed steel is a kind of steel base alloy common name white turning tool, carbon steel of 0.7~0.85% carbon content is added W, Cr, V, and Co alloy elements. The friction heat generated in the cutting of high-speed steel turning tools can reach up to 6000C, suitable for turning the speed below 1000rpm and the thread.
3. Non-cast iron alloy cutting tools
This is the alloy of cobalt, chromium, and tungsten, because cutting processing is very difficult, to casting forming manufacturing, so it is also called super hard casting alloy, the best representative is stellite. Its tool toughness and wear resistance is excellent, at 8200C temperature, its hardness is still not affected, far more than high-speed steel, suitable for high speed and deeper cutting work.
4. Sintering carbonization tool
The carbide tool is the product of powder metallurgy, the main component of tungsten carbide tool is 50%~90% tungsten, and add titanium, molybdenum, tantalum and other cobalt powder as the binding agent, then through heating sintering. Carbide cutting tools of hardness is higher than any other material, has the hardest three times of high carbon steel, suitable for cutting hard metal or stone material, because it's material brittle hard. So can only be made into a sheet, welded again in its toughness on the handle, so the blade passivation or split, can change another new blade, blade or change this enough tool called abandon type lathe tool.
5. Ceramic turning tool
Ceramic turning tool is made of aluminum oxide powder, add a small number of elements, and then through high-temperature sintering, its hardness, thermal resistance, cutting speed is higher than tungsten carbide, but because of brittle, it is not suitable for discontinuous or heavy turning, only suitable for high-speed precision cutting.
6. Diamond cutter
For advanced surface processing, diamonds with round or edge edges can be used for optical processing. A smoother surface can be obtained, which is mainly used for precise turning of copper or light alloys. High turning speeds must be used, with a minimum of 60~100m/min and usually 200~300m/min.
7. Boron oxide
Cubic boron oxide (CBN) is a widely used material in recent years, and its hardness and wear resistance are relatively strong, second only to diamond. CBN tools are suitable for hard and wear-resistant machining of iron alloys, nickel-based alloys, and cobalt-based alloys.
With the development of automatic numerical control grinding technology, when grinding work in various industries, in order to improve the work efficiency of grinding, high requirements are put forward on the supporting equipment of the grinding machine equipment. As one of the supporting technologies, the online automatic grinding wheel dressing technology must meet the needs of modern CNC grinding technology and developments in the direction of high precision, ultra-stable, and fully automatic control according to the needs of users. PCD TOOL grinding wheel dressing machine is now used as an efficient grinding tool in the grinding industry, widely used in the processing of ceramics, cemented carbide, CBN, and other superhard materials. The equipment not only can grind quickly, but also has high precision, so it is now well received by users in the grinding industry.China Demina BT-150D tool grinding machine is specialized in PCD and CBN tools grinding. It is a four-axis CNC tool grinder, which is composed of four axes, such as the swing axis of the grinding wheel (X-axis), the tilt angle of the grinding wheel (B-axis), the rotation axis in the horizontal plane of the workpiece (C-axis) and the workpiece feed axis (Y-axis). The machine is suitable for medium and large quantities of alloy inserts, PCD inserts, and CBN inserts. As long as the center is completed, the system will automatically complete grinding under the action of the gravity of the hammer, realizing the ideal state of “constant pressure grinding, flexible feed”.Due to the high hardness of diamond material (PCD), the grinding wheel wears quickly. The system can detect and compensate the wear automatically, and maintain the dimensional accuracy of grinding for a long time.
Common tool materials in tool grinding are high-speed steel, powder metallurgy high-speed steel, carbide and PCD, CBN, cermet and other superhard materials. High-speed steel tool sharp, good toughness, hard alloy tool hardness but poor toughness. The density of the carbide tool is obviously higher than that of a high-speed steel tool. These two materials are the main materials for drill, reamer, milling cutter, and tap. Powder metallurgy high-speed steel, whose properties are between the above two materials, is mainly used for making rough milling cutters and taps.
A high-speed steel tool is not sensitive to the collision because of its good toughness. But hard alloy tool hardness is high and brittle, very sensitive to the collision, the edge is easy to jump. Therefore, in the process of grinding, the operation and placement of carbide tools must be very careful to prevent the collision between the tools or tool fall.
Due to the high-speed steel tool accuracy is relatively low, its grinding requirements are not high, plus its price is not high, so, many manufacturers set up their own tool workshop for its grinding. But hard alloy tools often need to be sent to the professional grinding center for grinding. According to statistics from the China Tool Repair and Grinding Center, more than 80% of repair tools are carbide tools.
As we all know, under the premise of the continuous development of the domestic economy, the development trend of the PCD tool grinders is going up all the way. Businesses have high requirements for modern metal cutting processing technology, and tool costs occupy a small part of the overall manufacturing costs. In order to better solve this kind of phenomenon, in addition to the cost of the PCD tool itself, the CNC mold business uses the tool reasonably to fully improve the production efficiency, shorten the processing time, and ultimately reduce the product cost.PCD tool grinding machine is a machine tool that cuts the surface of a workpiece as a tool, collectively referred to as a grinding machine. Manual PCD tool grinder can process a variety of surfaces, such as internal and external cylindrical and conical surfaces, flat surfaces, gear tooth profiles, spiral surfaces, and various molding surfaces, etc. It can also sharpen tools and cut off, etc. The process range is very wide. Because the grinding process is easy to obtain high machining accuracy and good surface quality, the grinder is mainly used for the finishing of parts, especially the finishing of hardened steel parts and high-hardness special materials. Then the PCD tool grinding machine is in the tool grinding work. What work does the PCD tool need to do?Grinding Work Of PCD Tool Grinding MachineClamping and adjustment of PCD toolsFirst, adjust the center of rotation of the cross table to coincide with the center of the optical projector. Then according to the requirements of the drawing, the PCD tool is adjusted to the reference line of the optical projector through the cross table, and this position is the sharpening position. In order to ensure the accuracy requirements of PCD tools, all sharpening dimensions should be completed in one clamping. If PCD tools are grinding, all wear must be removed.Oscillation parameters of diamond grinding wheelSince diamond grinding wheels are relatively expensive, in order to make full use of the efficiency of the grinding wheel and prevent the occurrence of groove marks, according to the size of the PCD tool, attention should be paid to the amplitude of its swing. By adjusting the swing amplitude and frequency of the grinding wheel swing frame of the sharpening machine tool, the grinding wheel and tool The degree of coincidence are greater than or equal to 1.Minimum grinding allowance for PCD toolsUsually, in the process of tool making, the cost of sharpening is the highest, and the goal is to minimize the amount of removal. The minimum machining allowance depends on the depth of damage to the PCD caused by the cutting method and heating process. It consists of three parts: the first is the depth of damage to the surface layer by the cutting method; the second is the depth of damage to the internal tissue by the cutting method; the third is the influence of the heating method.