Punch press classification and feature

Punch press is a set of ram-type press machine. In national production, stamping process compared with the traditional mechanical processing, can save material and energy, high production efficiency, the technical requirements for operators is not high and through a variety of mold application can be made product of machining is unable to achieved.

Depending on the punch press machining precision, can be divided into ordinary punch press, precision punch press. Depending on the shape of the punch press, can be divided into open type punch press, tiltable punch press, half open type punch press, enclosed type punch press.

Depending on the punch press transmission structure, can be divided into:

Manual punch press, suitable for small hole, paper, leather and other manual processing, because it is a manual operation, so the pressure is small, the work efficiency is lowest.

Mechanical punch press, is the most common type of punch press, it is to rely on mechanical transmission, high speed, work efficiency is high.

Hydraulic punch press, is hydraulic transmission, the price is cheaper than mechanical punch press, but speed slower than mechanical.

Pneumatic punch press, pneumatic transmission, its stability is not equal to hydraulic punch press.

High-speed mechanical punch press, is mainly used for electronic product etc. continuous die blanking, such as motor stator, rotor piece and so on, it is numerical control, fast speed, work efficiency is very high.

Punch press has high rigidity, stability high precision, operating performance is reliable, safe production automation, save time and effort, high efficiency, etc. characteristics. Therefore widely used in electronic, communication, computer, household appliance, furniture, transportation, hardware part etc. stamping and molding process.

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What is punch press, Punch press classification, Punch press characteristic, Punch press advantage, Punch press application, High precision punch press process factory, Punch press manufactory

How to choose a good punching machine?

Punching machine work principle is the pressure of material infliction, make its plastic deformation, to get the required shape and precision. But must match a set of mould (divide into upper die and lower die), put material on the middle, by pressure on the machine, make its deformation, so as to get the required product.

Punching machine production mainly aims at board. Through the mould, it can make the blanking, punching, forming, deep drawing, trimming, fine blanking, reshaping, riveting and extrusion etc. process. Widely applied in various fields, such as in life common switch socket, cup, kitchen cupboard, dish, computer case, etc. are from punching machine by mould produced.

So how to choose good punching machine, and what kind of punching machine production factory is the most ideal choice?

1, punching machine processing method and project: when choose punching machine, should first consider whether or not the processing method is appropriate for the product, and must be properly processing project number.

2, punching machine speed: first consider what quantity of production want to achieve, and then according to the transmission structure to select processing efficiency different punching machine, because punching machine cannot use limit, otherwise it will make the mould and other tools wear. According to the punching machine production speed can be divided into manual, high-speed, very high-speed punching machine. Of course, different kinds of punching machine, the price will be different.

3, punching machine precision: main performance in the parallel degree, vertical degree, the total clearance. High precision punching machine can not only produce good products, but also small damage to the mold. It not only save the mold maintenance time but also save maintenance expense.

4, good manufacturer the most essential factor is a good service attitude, among them that after-sale maintenance includes response speed, maintenance speed and repair cost. To understand oneself buy punching machine manufacturer whether or not has after-sale service point in local, if when punching machine occur problems in a timely visit to treat problems. But if when you buy punching machine is cheap, after-sale maintenance cost is too high, the choice of buy this punching machine is absolutely not wise.

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Punching machine working principle, Punching machine processing technology, Punching machine application, Punching machine characteristic, How to choose a good punching machine, Punching machine manufacture factory

Tapping machine tap classification

Tap, it is a kind of machining internal thread cutting tool, along axial direction open groove, also called screw tap.

According to the shape of the tap, can be divided into straight fluted tap, spiral fluted tap and screw tip tap.

1, straight fluted tap, its commonality is strongest, through hole or blind hole, nonferrous metal or black metal processing, price is the cheapest. But pertinency is poorly, anything can be done, but are not doing the best. It is commonly used in ordinary lathe, drilling machine and tapping machine screw thread machining, cutting speed is slower.

2, spiral fluted tap, is suitable for processing unfair hole thread, processing chip out back. Because of the spiral Angle, tap actual cutting rake angle will be increasing with the increase of helical Angle. For example: when processing ferrous metal, choose the smaller spiral Angle, generally about 30 degrees, to ensure the strength of the helical gear. When processing non-ferrous metal, choose the larger spiral Angle, about 45 degrees, cutting sharp. Spiral fluted tap usually used in numerical control processing center drilling blind hole, processing speed is faster, precision is higher, chip removal is better.

3, screw tip tap, chips discharge forward when processing thread. Its core size design is bigger, strength is better, can bear bigger cutting force. Processing non-ferrous metal, stainless steel, black metal effect is very good. When processing through hole thread, should first uses the screw tip tap.

According to different processing method, can be divided into cutting tap and extruding tap.

Of extrusion tap is more suitable for processing non-ferrous metal, with the above cutting tap working principle is different, it is to squeeze the metal, make it plastic deformation, forming internal thread. Extrusion forming internal thread metal fibre is continuous, tensile, shear strength is higher, processing surface roughness is also better, but extrusion tap bottom hole requirement is higher. If the bottom hole is too large, base metal quantity is little, causing internal thread path is too big, strength is not enough. If the bottom hole is too small, closed extrusion metal has nowhere else to go, it is easy to cause broken tap.

Of course, according to the method of use, tap also has types of hand use or machine use. No matter hand use or machine use, are master tap what cutting common thread. However, habitual called machine tap of manufacturing higher precision high speed steel ground tap, called hand tap of carbon tool steel or alloy tool steel roll teeth(or ) incisor teeth tap. Visible, tap is essential tool of currently manufacturing operators processing thread.

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Tap introduction, Tap classification, Tap application, Tapping machine, Tap wholesaler, Tapping machine factory

How to choose tap?

Tapping machine tap usually points single or group. Small and medium size through hole thread available single tap once tapping. When processing blind hole or large size screw hole often uses group tap, that is to say use more than two branches taps successively finish a screw hole processing.

Thread is the most common ways of mechanical part connection, tap is also the most commonly used tools of machining internal thread. So correctly choose tap machining internal thread, can guarantee the quality of threaded connection, improve the work efficiency.

Choose tap tolerance zone

China machine tap all logo intermediate diameter tolerance zone code: H1, H2, H3 respectively show tolerance zone same position, but the tolerance value is different. Hand tap tolerance zone code is H4, tolerance value, screw pitch and Angle error are larger than machine tap, material, heat treatment and production technology are not as good as machine tap.

Choose the thread system

At present common normal thread have three systems: metric system, inch system, unify system (also called American system). Metric system is based on mm units, thread tooth profile angle 60 degrees. Inch system is based on inch units, thread tooth profile angle 55 degrees. Unify system is based on inch units, thread tooth profile angle 60 degrees.

Choose tap type

Common tap types include: straight fluted tap, spiral fluted tap, screw tip tap, extrusion tap. Different kinds of taps, performance is also different, each one has his good points.

Straight fluted tap commonality is strongest, the price is the cheapest. Spiral fluted tap is suitable for processing blind hole thread, in processing chip out back. Screw tip tap processing thread chip out forward, has good strength and can withstand a larger cutting force. Extrusion tap is more suitable for processing non-ferrous metal, extrusion forming internal thread of metal fibre is continuous, tensile, shear strength is higher, the processing surface roughness is also better.

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Tap, Tap structure, Tap application, How to choose tap, Tap type, Tap model number, High quality tap manufacturer

How to choose machine tool lathe bed casting method and factory?

Machine tool lathe bed machining process: finish machining, rough machining and finishing process. Machine tool lathe bed casting after rough machining on the surface of work piece material cut to small machining allowance, make work piece achieve high machining accuracy and surface quality of process for finish machining. And after finish machining on the surface of work piece material cut to small machining allowance, getting high machining accuracy and very small surface roughness value of the process for finishing process. Grinding, honing, super finishing and polishing etc. methods belong to finishing process.

Machine tool lathe bed casting foundry method first uses the sand mold casting, such as clay sand, organic binder sand mold, resin self-hardening sand mold, evanescent mode, etc. Because sand mold casting cost is low than other casting methods, production process mechanization, production cycle is short. Followed by the special casting method, such as: metal mold casting, investment casting, plaster mold casting, etc. Machine tool lathe bed casting method is on speaking terms of bulk production. Low pressure casting, die casting, centrifugal casting and other casting method, for equipment and mould are expensive, so more suitable for mass production.

Machine tool lathe bed casting modeling method should be suitable for factory conditions, for example is the same of production large machine tool lathe bed casting, some factories use core modeling method, don’t make shape and sand box, core in the pit; And some factories use sand box modeling method, make mould shape. Because different enterprise production conditions, production habits, accumulated experience all is not the same, so in choosing a machine tool lathe bed casting manufacturer, should fully consider the above factors.

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Machine tool lathe bed casting method, Machine tool lathe bed manufacturer, Machine tool lathe bed processing process, High quality machine tool lathe bed casting, Superior quality machine tool, China machine tool wholesaler

Fully automatic drilling machine characteristic

Drilling machine is the use of more hard and sharp tool than the work piece, by means of rotary cutting or rotary extrusion way, in work piece leave cylindrical hole or cavity machinery and equipment general terms. Can also be called a drilling machine, perforating machine, trepanning machine, hole machine etc. By means of proceeds drill for precision part, achieve the anticipative effect. Drilling machine has semi-automatic drilling machine and fully automatic drilling machine, with the increase of human resource cost, most companies are starting to use fully automatic drilling machine. With the development of the era, automatic drilling machine drilling technology ascension, fully automatic drilling machine fairly widely used in all walks of life, because fully automatic drilling machine has the following characteristics.

1, fully automatic baiting;

2, use flat plate type mould, low cost, strong commonality, easy fabrication, machining efficiency is high;

3, processing size (2 – 40 mm), can completely meet the requirement of industry product processing size, special specification can be customized;

4, use fully automatic computer debug machine way, hole location to the number of edges is adjustable range (0-15 mm), to the base adjustable range (0-7 mm), at the same time have compensation value adjustment function, make the hole position adjustment is more accurate, more convenient;

5, computer real-time monitoring drilling mouth protection system, material card, empty material, parameter error alarm system;

6, one person can operate more drilling machines at the same time, improve efficiency, reduce cost, improve enterprise competitiveness;

7, manufacturer provides a standard tube, operation more convenient.

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Drilling machine, Fully automatic drilling machine, Fully automatic drilling machine characteristic, High quality drilling machine, Superior quality fully automatic drilling machine, Drilling machine manufacturer, Fully automatic drilling machine manufacturer

Automatic tapping machine

Tapping machine is a machine shell, end face, nut, flange and so on with different specifications hole or blind hole of the parts for inner side process internal thread, screw or tooth buckle mechanical processing equipment. Tapping machine is also called thread tapping machine, automatic tapping machine, etc.

Automatic tapping machine is an equipment that adopts PLC program control, automatic program go complete processing thread. Its high speed and precision, tapping out teeth can pass tooth gauge test; For high speed continuous cycle operation, special motor can durable; Which can realize automation, one person can operate multiple devices at the same time, saving labor costs; And can improve the production quality and quantity, in the international market automatic tapping machine is a kind of machine no one can replace.

Automatic tapping machine has quite a wide range of application, because it has the following characteristics:

1, motor is equipped with independent cooling fan, forced cooling, can avoid high temperature and lead horsepower down, can continuous operation, strong and durable.

2, use solid stand column, after tempering treatment eliminate stress, appearance plating hard chromium, rub resistance and not Rusty.

3, to increase torque, speed reduction, particularly inside the spindle set a reduction gear group, in order to create perfect teeth lines and extend tap life.

4, particularly establish double safety torsion protective device, prevent tap wreck.

5, replacement gear type, no fine thread limits; screw tap is wrong hole, screw tap will automatically refund.

6, operation is simple (pedal form), beginner can also smooth operation, operator two hands can be free from mechanical to match the material up and down.

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Automatic tapping machine, Tapping machine, Automatic tapping machine characteristic, Automatic tapping machine advantage, Automatic tapping machine application, High quality automatic tapping machine

How to judge the tool chuck quality is good or bad?

Tool chuck in a variety of cutting tool and machining center spindle provide connection standard. High precision tool chuck difference also depends on the manufacturing tolerance, qualified frock clamp chuck and waste distinguish is often lie in critical size microscopic difference. Tool chuck can be used in drill head, machine tool, drilling machine. So how to judge tool chuck quality is good or bad? You can judge according to the following four.

Concentricity

Cutter axis rotary must be precision consistent with the machine tool spindle rotary axis. Although implementation seemingly perfect method of concentricity is very clear, but also very complex. Even if the spindle fitment chaos problem resolved soon, problem will steer business terminal of tool chuck.

Clamping strength

Clamping force is the ability to prevent the cutting tool rotation in the chuck. Use jacket is the main reason of cause clamping force change. Single Angle jacket can put greater clamping force, and can ensure good concentricity. To make composed of collet, jacket and tool components can get as much as possible good concentricity, must adopt special measuring tool or high precision cutting tool presetters to measure the concentricity. In order to get the best combination of clamping force and the concentricity, should adopt hydraulic chuck or hot shrinkage chuck, so that we can not use the jacket.

Detection

Each processed products have tolerance, is mainly used to measure the size of manufacturing variation, the change is smaller, the tolerance is tighter.

Balance

Tool chuck imbalance is usually derived from the functional design, such as end milling chuck locking screw or CAT chuck drive slot depth is unequal. But due to many reasons, the unbalance produce is often random. No matter what imbalance comes from where, all need to remove part of the material, in order to eliminate unbalance, correction effect. Another solution is to use an adjustable balance tool chuck, can be adjusted by the radial screw or balance ring to eliminate the imbalance. In this case, we need to determine the size and location of the tool chuck imbalance, and this will need to use the complex balance detector.

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Tool chuck, Tool chuck quality is good or bad, How to choose tool chuck, Drill, Machine tool, Drilling machine, Superior quality drill, High quality machine tool, Drilling machine manufacturer

Motor

Motor is a kind of rotary electric machine, it is a device converts electrical energy into mechanical energy. It is using electric coil creates a rotating magnetic field and is used to turn the mouse cage closure of aluminum frame to form dynamic rotating magnetic torque. Its working principle is magnetic field in the current stress, make motor rotate.

Motor is mainly composed of stator and rotor, the motion direction of electrify wire in the magnetic field relate to the current direction and magnetic induction line direction. According to different use of power, motor can be divided into dc motor and ac motor, motor in the electric power system is mostly ac motor, synchronous motor or induction motor.

When motor running need to pay attention to make it load characteristic and motor characteristic phase match, avoid aerodyne or shut down. Motor can provide rate of work range is big, from milliwatt magnitude to million kilowatt. It is very convenient to use and control, has self starting, accelerating, braking, reverse, stopper live etc. ability, and can satisfy the various operation requirements; the work efficiency of the motor is higher, and no smoke, odor, polluting the environment, noise is small. Because of its series of advantages, it so widely used in all walks of life.

Machine tool, drilling machine, water pump, belt conveyor fan etc. need motor drive; Electric locomotive, elevator, need motor traction. Family life of the electric fan, refrigerator, washing machine, and even all kinds of motor toys is inseparable from the motor. Motor has been used in all aspects of life in modern society.

Moreover all kinds of motors are used in ac asynchronous motor (also known as induction motor). It is convenient to use, reliable operation, low cost, firm structure, but power factor is low, speed regulation is also more difficult. Large capacity low speed power machine is commonly used motor. Not only synchronous motor power factor is high, but its speed has nothing to do with the load size, only depends on the line frequency. Work is more stable. In require wide scope speed regulation occasion more use dc motor. But it has a commutator, the structure is complex, the price is expensive, maintenance is difficult, not suitable for bad environment.

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Motor, Motor working principle, Motor classification, Motor characteristic, Motor advantage, Motor application, Machine tool, Drilling machine

Grinding process technology

Grinding is refers to using abrasive, grinding apparatus to remove excess material on the work piece processing method. Grinding process is one of widely used in cutting machining method. Grinding process belongs to finish machining in mechanical process, the processing quantity is few, but the precision is high, is widely used in machinery manufacturing industry.

Grinding is the use of high-speed rotation grinding wheel etc. grinding apparatus machining work piece surface cutting machining. Grinding is used for processing various artifacts inside and outside cylindrical surface, circular conical surface and plane, and screw thread, gear and spline etc. special and complex forming surface.

And compared with other cutting machining methods such as turning, milling, planning etc. have following characteristics. Grinding speed is fast, higher temperature, grinding process duration is very short. Grinding process can obtain high machining accuracy and small surface roughness value. Grinding can not only processing soft material, but also can processing hardened steel and other cutter can not process hard material.

And machine tool of grinding process is called grinding machine, it is the use of grinding apparatus work piece surface for grinding. Most grinding machine use high-speed rotation grinding wheel for grinding, a few use oilstone, abrasive belt etc. other grinding apparatus and dissociate abrasive for machining, such as honing machine, super finishing machine tool, abrasive belt grinding machine, grinding miller and polishing machine, etc.

Grinding machine can processing hardness higher material, such as hardened steel, hard alloy, etc; can also be processing brittle material, such as glass, granite. Grinding machine grinding high precision and surface roughness is small, can also proceed high efficiency grinding, such as heavy grinding, etc.

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Grinding, Grinding characteristic, Grinding application scope, Grinding advantage, Grinding machine processed material, High quality grinding machine, Machine tool manufacturer