Tsinfa is a professional supplier & manufacturer of lathe machine in China. If you want to process the bar or disk type metal workpiece, to obtain a brighter outer surface, to process the thread outside the round bar, to process the inner hole, or to process the end face to make the end face more even, then our metal lathe is a good choice. Metal Lathes are widely used in metal processing, shipping, petroleum, automobile, coal mining and other fields.
Questions? Give us a call at +8615318444939, and talk to one of our expert reps. You can also fill out our contact form.
Lathe machine
image specifications:
The servo motor rotation is controlled by the CNC system, automatic feed, suitable for batch processing
Lathe spindle through hole is relatively large, the processing length can be more than 10 meters, can withstand the weight of the workpiece up to several tons
Suitable for threading long and large diameter pipes, The spindle aperture is also relatively large
Manual control of feed and adjustment, suitable for non – batch processing
Install a removable saddle in the position of the lathe bed, Increase the turning diameter of the lathe disk type
Add power head and C axis on the lathe for milling and drilling, highly automated
Slant bad lathe machine
Bed body has a certain tilt angle, convenient chip discharge
Small lathe machine
Suitable for small workpiece processing, cheap price, The weight of the workpiece is several hundred kilograms
Vertical lathe machine
The workpiece rotates horizontally and the cutter moves up and down. It is suitable for the workpiece with large weight and diameter
WE CAN CUSTOMIZE ACCORDING TO YOUR NEEDS, CONTACT US FOR SOLUTION AND QUOTATION
When it comes to the selection of lathe machine,It mainly depends on the length, size, weight and processing mode of the workpiece. Horizontal lathe, vertical lathe can be selected. If it’s mass production, optional consider CNC lathe, but if the number of workpiece processing is very small, then CNC lathe is a bit of a waste, you can choose the manual lathe. Our lathe quality is stable, from the source of procurement control quality, complete specifications. Inquiries are welcome.
What is a metal lathe machine
Metal lathe machine is a kind of universal metal cutting machine tool, widely used, can be turned round, hole, and end.
One end of the workpiece is clamped on the chuck, the other end is supported by the center, and the center is fixed on the tailstock. Through the motor drive spindle rotation, spindle drive chuck rotation, chuck drive workpiece rotation, when the tool touch high-speed rotating workpiece, the workpiece cutting. The tool is installed on the tool rest, which is on the slide plate. The lead screw is driven by the motor to rotate. The lead screw drives the slide plate to move the tool around.
When the machining length is not enough, the workpiece can pass through the spindle center hole to expand the machining range of the lathe. This requires the diameter of the spindle through the hole to be larger than the diameter of the workpiece.
Metal lathe machine is simple, convenient and efficient. It is an indispensable tool in metal cutting.
What does a lathe do, application of metal lathe machine
The car industry
Machine tools are needed to process auto parts, which account for 70% of the total equipment value of the vehicle. Such as the engine block, cylinder head, crankshaft, camshaft, connecting rod, and so on. The cylinder body and head are processed by the machining center, and the crankshaft camshaft is processed by CNC lathes and grinders. The automobile wheel hub is processed by CNC vertical lathe with high efficiency and precision.
The railroad industry
Railway hub maintenance requires the use of lathes, and can only be processed by the wheel on the lathe.
The oil industry
This series lathe machine widely inform the industries including petroleum exploitation, minerals, mining, chemical piping, and geological prospecting.
The golf cart vehicle industry
A lathe machine is used in golf cart manufacturing to shape and refine metal parts like shafts and axles. It ensures precise alignment and smooth surfaces, enhancing the durability and performance of the golf cart.
Instrumentation manufacturing, hardware manufacturing, shell valve industry, brake disc industry, construction machinery, medical equipment, shipping industry, maintenance industry.
Metal lathe machine parts
The main components of the lathe are as follows:
Bed, the material is casting, is the main part of the lathe, bearing the main weight of the lathe and parts installation
The lead screw is responsible for driving, and the rotation of the lead screw drives the tool holder to move along the XY axis
There are four or six or eight working positions for tool holder and tool installation
Motor, the main power source
Chuck and tailstock are used to fix the workpiece at both ends
The headstock is installed at one end of the bed, with spindle, gear, and bearing inside,
Work lights,
Chipboard to prevent iron chips from falling to the ground
How does a lathe work
First check the overall condition of the lathe is good, circuit safety, lubricating oil, and so on
Secondly, install the workpiece and clamp it with a chuck
Then, according to the requirements of processing, select the speed, input, and so on
After processing, stop the lathe work, unload the workpiece, and clean.
CNC lathe machine
Need to know how to program, according to the type of workpiece programming, choose the right tool, processing
Conventional lathe machine
Simple operation, manual operation.
Tsinfa, as a machine tool company, often rewards customers with lathe promotions, CNC, or manual, such as a complementary set of chucks or a discount. But at certain times of the year. Specific matters can send mail to consult.
Types of metal lathe machine
Vertical turning lathe machine, Horizontal lathe machine
According to the direction of the spindle, can be divided into the vertical lathe and horizontal lathe
According to the control mode, can be divided into CNC and ordinary
According to the workpiece weight, can be divided into heavy and light
According to the Angle of the bedstead, can be divided for inclined bedstead peace bedstead
According to the function, can be divided into lathe and turning center
According to a saddle, can be divided into saddle lathe and ordinary lathe
According to the function, can be divided into pipe thread lathe, crankshaft lathes, camshaft lathes, wheel lathes, axle lathes, roll lathes, and ingot lathes.
Computer numerically controlled machine tools
Centre lathe machine
CNC & manual lathe machine price introduce
When purchasing lathes, In addition to the weight of products, price is a very important factor. We briefly introduce the prices of different types of lathes.
The price of a CNC lathe is higher than that of a manual lathe. But need to compare with the specifications, such as processing length of 1 meter, turning diameter of 400 lathe, CNC lathe price is about 10000 US dollars. Processing length of 2 meters, the price is about 11000 US dollars.
The prices of CNC systems of different brands are also different, which can be roughly divided into two categories. One is made in China, the other is FANUC, Mitsubishi, Siemens, and other brands. Generally speaking, imported brands are much more expensive than domestic brands, and the price gap is about 2000-8000 US dollars.
CNC lathe loading hydraulic chuck relative to manual chuck, the price is about $1000 higher
The price of a CNC lathe with a power turret is about 8000 US dollars higher than that of a conventional CNC lathe, because it has strong compound processing ability, saves the time of loading and unloading workpieces, and can process multiple processes at one time.
If you want to choose products with high-cost performance, you’d better find out your own needs before you can find the lowest price point of the corresponding products.
Contact the salesperson to get the latest price list
The price of manual lathes also called conventional lathe ranges from the US $6000 to the US $120000. According to the structure and specifications of lathes, the price varies greatly
Flatbed horizontal lathe, processing length 2000mm, rotary diameter 500mm, bed width 400mm, the price is about 10500 US dollars. The longer the length, the higher the price. At the same time, the turning diameter, especially the width of the bed also has a greater impact on the price.
Lathe structure is also the main factor affecting the price, such as vertical lathe, the price is relatively high.
The lathe is suitable for processing disc, round bar workpiece, suitable for factory, school and so on. When you plan to buy a metal lathe machine, you can choice many optional accessories:
With bar feed
If there is a long workpiece that needs to turn the outer circle and needs to be cut off after machining a specific length, then you need to purchase an automatic feeder for feeding. The efficiency of batch processing is very high. The feeding machine pushes the bar into the lathe through the spindle, and the chuck can be clamped for processing.
With living tool
If you have complex workpieces to process, in addition to turning the outer circle and end face, you also need to drill and mill the plane, then you need to buy a power turret and install it on the CNC lathe to process the complex processes, which greatly improves the processing efficiency
With the y-axis
The conventional lathe has only XZ two axes, if the turret needs to move vertically, then the y axis is needed. It expands the processing range of the lathe and can carry out arc processing.
Lathe range: flatbed CNC lathe and slant bed CNC lathe. The price of flatbed CNC lathe is relatively low and the cost is saved.
If you are not batch processing, most of the work is maintenance, then it is best to choose an ordinary lathe, do not need complex programming, do not need a lot of money, can buy.
Mill vs lathe
Different between mill and lathe
Milling machines and lathe machines are the two main types in the metal cutting machine industry. The two processing properties and principles are different.
The milling machine and cutter are loaded on the spindle, the milling cutter rotates, and the workpiece is mounted on the worktable to move up and down. Milling, keyway, drilling, milling plane, and so on,
Lathe, the turning tool is installed on the tool holder, the turning tool does not rotate, the workpiece is installed on the spindle, clamped by the chuck, and the spindle drives the workpiece to rotate. The lathe moves along the XZ axis on the turret. Turning end face, outer circle, groove, and so on
The two are complementary.
The prices of the two need to be judged according to the specifications. The prices are different. Can pretend to CNC system, CNC control.
Mill or lathe
The choice of milling machine or lathe depends on the type of products you need to process.
If it is a round bar processing, the need to turn the outer circle, the best choice lathe
If it is a milling plane, or keyway, the best choice milling machine
Q & A
Why are lathes so dangerous? Safety manual for lathe operation.
Lathes are very common machine tools, widely used in metal processing. It is also very dangerous if the lathe is not used properly.
Lathe is a heavy metal processing machine tool, the body is composed of iron. Usually the weight of more than 1 ton, if the large lathe, the weight can reach more than ten tons. When the lathe is stationary, it is very easy to get hurt if someone nearby accidentally falls and touches the lathe.
When the lathe starts to run, the high-speed rotating spindle drives the workpiece to rotate, if the chuck accident, then the claw fly out, easy to lead to serious injuries, no less than a car accident. Or the person’s long hair, sleeves, if not well organized, also easy to get involved in the machinery.
The power supply used by the lathe is generally industrial electricity, if there is an electrical leakage accident, there is a risk of electric shock
For operators
1 must know how to operate the lathe, if a novice, must have experience in the operation of personnel beside the guidance, otherwise not allowed to operate the lathe.
2 pay attention to wearing, must tighten the cuff, clothes are not allowed to have any thread, or cloth belt hanging. No gloves, no rings and no watches. Wear eye protectors often.
For lathe
1 power supply, must ensure that there is no leakage of electricity, the ground wire is well grounded
2 Each lubricating part must have oil
3 The lathe must stop running when unloading the workpiece or checking the accuracy of the workpiece
4 hen the lathe is running, the personnel should keep a certain distance from the lathe
5 When multiple lathes are side by side, tilt at a certain Angle
6 Do not use your hands to clean the iron filings
7 Before lathe work, ensure that the chuck is locked, ensure that the workpiece is clamped
8 Before loading and unloading a heavy lathe, a piece of wood should be put between the workpiece and the guide rail to prevent the workpiece from falling accidentally
What the difference between cnc lathe machine and manual lathe machine?
The main difference between the two is in the way they are controlled.
The control mode of CNC lathe: CNC system – controller – servo motor
The operator will need to cut the program using G code programming, imported into the CNC system of the lathe, the lathe will realize the automatic processing of the workpiece, before the completion, no manual intervention again.
Control mode of ordinary lathe: need manual operation, can not be programmed control, more can not be programmed.
Should you wear gloves when operating a lathe?
No
It’s very dangerous.
Not only can not wear gloves, boot to wear tight work clothes, cuffs buckle, long hair to wear a protective cap, do not wear gloves, cutting workpiece and sharpening must wear glasses.
If you are operating an ordinary lathe, there are the following reasons:
- The lathe is not fully enclosed, and the workers are close to the workpiece,
- Rotate the hand wheel manually frequently,
3 manually release or lock the chuck
The lathe relies on the high-power motor to drive the spindle to rotate at high speed and work with gloves, so it is very easy to be entangled or clamped by machinery.
How to choose the right tool for the lathe
The following factors should be taken into account when selecting the tool type:
(1) Continuously machining as many surfaces as possible at one time;
(2) In the cutting process, the tool can not interfere with the workpiece contour;
(3) It can improve the machining efficiency and surface quality;
(4) Reasonable tool strength and durability.
1. Type of turning tool
CNC lathe generally uses standard clamp indexable tool. The blade and body of the indexable tool have standards. The blade materials are cemented carbide, coated cemented carbide and high speed steel.
According to different functions, it can be divided into cylindrical cutter, external thread cutter, internal thread cutter, cutting cutter, hole processing cutter (including center hole drill, boring cutter, tap, etc.).
When the indexable tool is used to fix the non regrinding blade, it usually adopts the block structure of screw, screw pressing plate, screw pin or wedge.
2. Select blade material
There are two kinds of tools commonly used for turning high speed steel and cemented carbide.
High speed steel is usually a blank material, its toughness is better than cemented carbide, and its hardness, wear resistance and red hardness are worse than cemented carbide. It is not suitable for cutting materials with higher hardness and high speed cutting. High speed steel cutting tools need to be sharpened by the manufacturer before use, and the sharpening is convenient, which is suitable for all kinds of non-standard cutting tools with special needs.
Cemented carbide inserts have excellent cutting performance and are widely used in NC turning. Cemented carbide inserts have standard specification series, and the specific technical parameters and cutting performance are provided by the tool manufacturer.
According to the international standard (ISO), cemented carbide inserts are divided into three categories: p-steel, m-stainless steel and k-cast iron based on the hardness and bending strength of cemented carbide. The numbers of 01, 05, 10, 20, 30, 40 and 50 are added after the codes of K, P and m for subdivision. Generally, the smaller the number is, the higher the hardness is, but the lower the toughness is; conversely, the larger the number is, the higher the toughness is, but the lower the hardness is.
In addition, there are tool materials with hardness and wear resistance higher than cemented carbide, such as ceramics, cubic boron nitride and diamond.
Lathe machine maintenance and adjustment
When using the lathe machine, following instruction should be observed:
1)The oil lever in all oil tanks should always be maintained on the center of oil gauge; otherwise either ineffective lubrication or overheating with loss in power will occur.
2)All oiling points should be lubricated with pure oil at regular intervals.
3)Frequently inspect the oil flow through sight glass ensuring proper lubrication of the headstock and feed box.
4)Check and adjust the tension of motor belts at regular intervals.
5)Before daily operation, run the main motor idle for one minute, and then operate all parts of the lathe without load, fill oil into the oil bath of the saddle.
6)With the spindle running at high speed, sudden change of the speed id not allowed.
7)The leadscrew is used for thread only. Never use it for turning operation.
8)When applying steady rest or follower rest, contact surface of rest should be lubricated.
Adjustment
1). Spindle adjustment
Excessive clearance in spindle bearing causes “working finishing not smooth” The spindle swivel accuracy includes radial run-out and axial run-out. Radial run-out is guaranteed by double row roller bearing at the front of spindle and single row radial thrust ball bearing at the rear of spindle while axial run-out is guaranteed by single row thrust ball bearing at the rear of spindle. Check method is according to item 5 and 8 in the test certificate. If the accuracy is not up to what is asked, in most cases. Method is the following: adjust the nut on spindle for removing clearance in spindle bearing.And lock one nut after adjustment. If the radial run-out is not up to what is asked yet adjust rear bearing by some method ad described above. After the adjustment is made, run the spindle idle at high speed for an hour and observe that bearing temperature should not exceed 70℃. If it exceeds, first loosen locks screws on set nuts, then the nuts should be slightly loosed, after the adjustment, retighten the lock screws.
2）. Chain Wheel Adjustment
The change of spindle speeds is controlled by levers at the front of the headstock. Control levers can shift slide gears through the chain wheel mechanism obtaining different gear conditions. If the actual spindle speed is not equal to its relative speed being engraved on the spindle speed indicating dial should make the adjustment of the chain wheel mechanism. First loosen the screw, turn the eccentric shaft make the chain until the spindle speed change pointer is set to the desired position, then, tighten the screw to locate the shaft through steel balls.
3). Carriage Adjustment
Clearance between cross slide and guideways and that between compound rest slide and guideways are adjusted by gibs through screw respectively. In fact of the backlash of cross slide lead screw resulting from wear of adjustable nuts, loosen the screw on the nuts and draw up wedge with the screw until the backlash is eliminated. Then tighten the screw.
4). Motor Belt Tension Adjustment
The main drive motor is mounted in the lathe leg. Dismantle the cover at the front of the lathe leg, the belt tension can be adjusted by changing the inclination of the motor base plate through nuts. The belt tension of the motor depends on the distance between the center of the motor pulley and that of the pulley of the headstock.
Lathe machine common fault analysis, and treatment methods
| No | Stoppages | Reasons | Cleaning Methods |
| 1 | Power can not be Transmitted to the machine | Travel switch can not be touched | Open the door of twist the screw on the switch, move the switch outside appropriately, then retighten the screw |
| 2 | Spindle motor can not run | Travel switch is not in use | Open the door of twist the screw on the switch, move the switch outside appropriately, then retighten the screw |
| 3 | Controlling transformer is burnt | Power voltage in user is not according with the assigned voltage. | 1. In accordance with the assignment, replace the light bulb with a”24v,40w” one 2. Replace the transformer yourself. |
| 4 | The handle on headstock can not Be displatched, so the speed can Not be changed | 1.The positioned screw becomes flexible 2. The positioned plank becomes flexible. | 1. Dismantle the round plate with a handle, and tighten the positioned screw. 2. Tighten both screws on the plank. |
| 5 | When the spindle runs in a low speed, it can not change speed | The nut on eccentric shaft, which is fitted in spindle slider, becomes flexible. | Open the upper cover of headstock rotate the eccentric shaft some single, and dispatch the handle to high speed ,low speed or empty position .If the gears clusters can engage normally, lock the nut. |
| 6 | The spindle in headstock starts slowly | The gap of friction discs on shaft I in headstock is big. | After adjusting the friction discs, lift the spindle control levers to test it until the spindle is in common condition. |
| 7 | The lathe vibrates when it grooves or the roughness of workpiece is not up to requirement. | 1. The adjustment of spindle and carriage assembly are not correct. 2. The rake or clearance angle is too big. 3. The material of tool is not correct. 4. The strength of shank is not enough. Or the cantilever is too long. 5. The coordination between swivel slide and saddle is not well. | 1. Appropriately adjust the bearings on spindle and two front plates 2. Grinding the tool according to the requirement. 3. Select suitable material of tool according to the material of workpiece。 4. Adjusts the cantilever length of shand. 5. Scraper the swivel slide. |
| 8 | The taper ratio of work-piece is out of the requirement when the machine is used to turn external cylindrical surface. | The installation of the machine is not horizontal | Readjust the lathe according to the Operation manual。 |
| 9 | The lathe can not feed automatically. | 1. Left & right thread change lever is not used correctly. 2. The swing gears com off. | 1. Check the lever. When it is on right, the machine can feed normally, when it is on left, the machine can not feed. 2. The nut on swing frame is flexible. so that swing gears come off. Readjust the gears tighten the nut on swing frame. |
| 10 | Apron can not move in high speed | 1. The fuse is burnt. 2. The button can not contact. | 1. Change the fuse. 2. Open the high –speed moving handle and pull out the button: adjust two copper and contact points. At the same time, press the points, refit the button. |
| 11 | The noise is high when the machine runs. | The bearings are destroyed. | 1. If the noise of shaft I is high after the motor starts, the bearing on shaft I is destroyed. 2. When lifting the control handle to run spindle, the noise is high ，when lifting the handle to stop spindle, but let other shafts run, the noise is low. This shows that the bearing on spindle are destroyed。 |
| 12 | Something must be noticed when installing the lathe. | 1. The motors run in the same direction after connecting the wires. Do not change the phase sequence at any single motor willfully. 2. Must tear down the oil seal paper and clean it carefully after the machine is installed. 3. Grease machine oil with 20# in winter or 30#in summer。DO not replace it with lubricating oil used in a car or hydraulic oil. | |