Turning products. China welding and fabrication near me Wholesale Manufacturer.
1 get the trigonometric function of micro food. China welding and fabrication near me Wholesale Manufacturer
In turning, some workpieces with inner and outer circle are often processed. Due to cutting heat, friction between workpiece and cutting tool, tool wear and repeated positioning accuracy of square tool holder are caused by cutting heat. The quality is difficult to guarantee. In order to solve the problem of accurate micro depth, we use the relationship between the triangle side and the diagonal edge according to the need in the turning process, and move the longitudinal knife holder into an angle. It can accurately achieve the horizontal depth of micro moving turning tool, save time and work, ensure the quality of the product and improve the working efficiency. China welding and fabrication near me Wholesale Manufacturer
The general C620 lathe tool holder scale value is 0.05mm per grid, if you want to obtain a horizontal depth of 0.005mm by looking up the sine trigonometric function table: China welding and fabrication near me Wholesale Manufacturer
Sin α 0.005% 0. 05% 0. 1 α = 544′
Therefore, when the knife holder is moved to 544′, the micro movement of the turning tool with a depth of 0.005mm in the transverse direction can be achieved when the plate is cut vertically on the small knife holder.
- reverse turning technology application in three cases
The long-term production practice proves that in particular turning process, obtain good effect of cutting technology can reverse. Now the examples are as follows: China welding and fabrication near me Wholesale Manufacturer
(1) reverse thread cutting material for martensitic stainless steel
In the processing of the pitch was 1.25 and 1.75mm, external thread workpiece, because lathe screw pitch is workpiece pitch removed, the number is an aliquant value. If using the lifting method to handle nut retracting processing thread, often produce chaos buckle, common traffic bed no matter the button disk device, and made a set of arbitrary deduction disc is rather time-consuming, therefore in the thread machining this kind of pitch, often. The method is low because of high speed turning clockwise, pick not back the knife, so the production efficiency is low, easy to produce in turning on the knife, surface roughness poor, especially in the processing of 1Crl3,2 Crl3 martensite stainless steel material, low speed cutting, eating knife phenomenon is more prominent. The reverse is created in the practice of processing the knife, the cutting knife went in the opposite direction reversal, the “three evils” cutting method can obtain good cutting effect, because This method can be used in high speed cutting off thread, the direction of movement of the cutter is from left to right path exits the workpiece, so there is no high-speed thread cutting tool ills back out, specific methods are as follows: China welding and fabrication near me Wholesale Manufacturer
External threading, wear a similar internal THREDING tool; internal threading, a reverse inner thread cutter grinding
Before machining , the main shaft of the reverse friction plate is slightly adjusted to ensure the rotation speed at the time of reverse rotation . For the good thread cutter , close the open / close nut , start the normal rotation low speed to go to the empty knife slot , and then move the threaded lathe tool into the proper depth of cut , so that the turning can be reversed . At this time , the lathe tool moves from left to right under high speed , and after cutting the number of knives by this method , the screw thread with high surface roughness can be processed . China welding and fabrication near me Wholesale Manufacturer
( 2 ) Anti – rolling flower In the traditional roll – rolling process , the scrap and the sundries can easily enter between the workpiece and the hob cutter , so that the stress of the workpiece is too large to generate a grain road disorder bundle , a pattern is bad or a ghost , and the like . if the new operation method of the lathe spindle is adopted to roll back the rolling flower , the defects generated in the riding operation can be effectively prevented , and a good comprehensive effect is obtained . China welding and fabrication near me Wholesale Manufacturer
(3) reverse turning, outer taper pipe thread
In turning processing all kinds of precision, small batch, external taper pipe thread, without copying device, a new method of operation directly by reverse and reverse cutting knife, the cutting edge edge kept by hand knife attack (from left to right lateral movement, the transverse knife is composed of a large diameter and small Peng it is easy to grasp the knife attack depth diameter is the external taper pipe thread) when the reason is attack knife with pre pressure of it. China welding and fabrication near me Wholesale Manufacturer
The application of this new type of reverse operation technology in turning technology is more and more extensive and can be applied flexibly according to a variety of specific conditions. China welding and fabrication near me Wholesale Manufacturer
The original drill chuck into a straight handle floating work, as long as the small drill drill can be clamped on the floating chuck successfully. Because the rear section of the bit is a straight handle sliding fit, it can move freely on the pull sleeve, drill holes gently hold the drill chuck by hand, can realize the manual trace feed, quickly put the hole drill out, good quality and prolong the service life of bit. After the restructuring of the multi-purpose drill chuck can be used for small diameter internal thread tapping, reaming drill (if a bigger hole can pull on the sleeve and the straight shank is inserted between a limit pin.) China welding and fabrication near me Wholesale Manufacturer
3 New operation method and tool innovation of small hole drilling in that proces of turning , when the drill bit is less than 0.6 mm , the bit diameter is small , the rigidity is poor , the cutting speed is not go up again , and the workpiece material is heat – resistant alloy and stainless steel , so that the cutting resistance is large ; therefore , the drill bit is easy to break when drilling , and a simple and effective tool and a hand – controlled feeding method are described below . China welding and fabrication near me Wholesale Manufacturer
The original drill chuck into a straight handle floating work, as long as the small drill drill can be clamped on the floating chuck successfully. Because the rear section of the bit is a straight handle sliding fit, it can move freely on the pull sleeve, drill holes gently hold the drill chuck by hand, can realize the manual trace feed, quickly put the hole drill out, good quality and prolong the service life of bit. After the restructuring of the multi-purpose drill chuck can be used for small diameter internal thread tapping, reaming drill (if a bigger hole can pull on the sleeve and the strai. China welding and fabrication near me Wholesale Manufacturer
4 . Anti – vibration of deep hole processing in that deep hole proces , because the aperture is small , the boring tool bar is elongate , and when the turning aperture is between 30 and 50 mm and the depth is about 1,000 mm deep hole parts , the vibration can be avoided , so as to prevent the tool bar from vibrating , the most simple and effective method is to add two supports on the cutter bar body ( with the material such as sandwich adhesive , etc . ) , and the size of the tool bar is exactly the same as the pore size . China welding and fabrication near me Wholesale Manufacturer
5 . Anti – breaking of small center drill In the turning process , when the drill is smaller than the center hole made of Φ1.5mm , the center drill is easy to break , and the simple and effective anti – cutting method is that when the center hole of the drill is drilled , the tail seat is not locked , so that the self weight of the tailstock and the friction force generated between the bed surface of the machine tool are used for drilling the central hole , and when the cutting resistance is too large , the tailstock can retreat automatically , thereby protecting the center drill . China welding and fabrication near me Wholesale Manufacturer
6 . Processing technology of ” O ” rubber mold When turning on the ” O ” rubber mold , the phenomenon of dislocation between the female mold and the male mold is frequently generated , and the shape of the ” O ” type rubber ring is shown in FIG . 4 , which causes a large amount of waste products .
ght shank is inserted between a limit pin.).
After many experiments, the following method can be used to produce “O” mould which meets the requirements of technical conditions.
(1) mold processing technology
(1) the size of each part of the car and the 45 devel of the inclined plane.
(2) loading the R forming knife and moving the rack to 45 degrees
According to the drawing , when the R knife is in position A , the contact point of the outer circle D of the cutter contact is C , the big carriage is moved by a distance according to the direction of the arrow 1 , the transverse tool rest is moved X dimension according to the direction of the arrow 2 , and X is calculated as follows :
=(D-d)/2+0.2929 ( i.e . 2X = D – d + 0.2929 Φ ) . Then move the large carriage in the direction of arrow 3 to bring the R knife into contact with the 45 ° slope , at which point the tool resides in the center position ( i.e . , the R knife is in position B ) . ( 3 ) Move the small cutter trolley cavity R in the direction of arrow 4 , and feed depth is Φ / 2 . Note : ① When R knife is in position B : OC = R , OD = Rsin45 ° = 0.7071R R
∴CD=OC-OD=R-0.7071R=0.2929R, ( 2 ) The X size can be controlled by a block gauge , and the R size is controlled by dial gauge . ( 2 ) Die processing technology ( 1 ) According to the requirements of Fig . 6 , the dimension of each part ( the cavity size is not processed ) is required . ( 2 ) grinding the 45 – degree inclined plane and the end face . ( 3 ) Install the R – shaped knife and move the small tool holder to 45 ° ( the female and male die is processed once ) . When the R knife is in the position A ‘ according to Fig . 6 , the cutter will contact the outer circle D ( the contact point is C ) , the cutter leaves the outer circle D according to the direction of the arrow 1 , then the transverse blade holder is moved X distance according to the direction of the arrow 2 , and X is calculated as follows :
=d+(D-d)/2+0.2929 ( i.e . 2X = D + d + 0.2929 Φ ) Then move the large carriage to the R – blade in the direction of arrow 3 to contact the 45 ° slope , where the tool is centered at the center ( i.e . , position B ‘ in Figure 6 ) .
( 4 ) Move the small cutter trolley cavity R in the direction of arrow 4 , and feed depth is Φ / 2 . Note : ① DC = R , OD = Rsin45 ° = 0.7071R R
∴CD=0.2929R, ( 2 ) The X size can be controlled by block gauge , and the R size shall be controlled by dial gauge .
7 . Anti – vibration of turning thin – wall workpiece During the turning process of thin – walled workpiece , vibration is often generated due to poor steel property of the workpiece , especially in turning stainless steel and heat – resistant alloy , the vibration is more prominent , the surface roughness of the workpiece is extremely poor , and the service life of the tool is shortened .
( 1 ) when turning the outer circle of the stainless steel hollow elongated tube workpiece , the wood chips can be filled in the hole and tightly clamped , and the clamping rubber blocks are inserted into the two ends of the workpiece simultaneously , and then the supporting claws on the heel tool rest are replaced by the supporting melon with the cloth – clamping rubber wood material , so that the turning process of the stainless steel hollow elongated rod can be carried out by replacing the required circular arc , and the simple method can effectively prevent vibration and deformation of the hollow elongated rod in the cutting process .
( 2 ) when the inner hole of the thin – wall workpiece of the heat – resistant ( high – nichrome ) alloy is turned , due to the poor rigidity of the workpiece , the cutter rod is elongated , a serious resonance phenomenon is generated during the cutting process , the cutter is easily damaged , and the waste product is produced .
( 3 ) when turning the outer circle of the heat – resistant alloy thin – wall sleeve type workpiece , due to the comprehensive factors such as large cutting resistance of the heat – resistant alloy , vibration and deformation are extremely easy to be generated during cutting , and if a rubber or a cotton thread is used in the workpiece hole , the vibration and the workpiece deformation in the cutting process can be effectively prevented , and the thin – wall sleeve workpiece with high quality can be processed .
- dish plate clamping tool
A disc shape is thin-walled double inclined plane, in turn turning second processes, to ensure that the shape and position tolerance requirements, but also to the workpiece clamping and cutting in no deformation. Therefore you can do it yourself, making a simple clamping tool, which is characterized by the use of process plane positioning processing good workpiece then, the slope of the nut coat to disc fasteners in this simple tool, you can turn the end face, and the outer orifice on the inclined plane circular arc R
- large diameter boring soft claw limit tool
In the turning of larger diameter precision turning fixture, to prevent the three claw due to clearance movement, must use a diameter and the processing of the same diameter bar clamping claw back three in advance, to fix the boring soft claw, fine boring large diameter soft claw limiting our homemade tools, the features (see Figure 8), L No. three screws can be fixed after any adjust opening diameter, thus replacing various diameters ranging from the size of the bar. China welding and fabrication near me Wholesale Manufacturer
- Simple precision additional soft claws
The machining of small precision workpiece is often encountered in turning, because the shape of workpiece is more complicated, and there are strict requirements of shape and position tolerance. We add a set of self-made precision soft claws to the three-claw chuck of lathe C1616 so as to ensure the tolerance requirements of various shapes and positions of the workpiece. The workpiece will not be clamped and deformed in many clamps. This precise soft claw is simple to manufacture and then boring with aluminum alloy bar according to the need of the car end. Drill a base hole on the outer circle and tap M8. After milling the two sides, it can be installed on the hard claw of the original three-claw chuck, and locked on the tripod with the M8 inner hexagonal screw. The workpiece can be clamped in the aluminum soft claw and machined according to the need of fine boring and positioning hole. The application of this result will bring about remarkable economic benefits and can be made as shown in figure 9.
11 . Additional shockproof tools due to the rigidity difference of the slender shaft type workpiece , vibration can be easily generated during the multi – groove cutting process , so that the surface roughness of the workpiece is poor , and the cutter is damaged ; and a set of additional shockproof tools is made , and the vibration problem of the elongated member in the groove cutting process can be effectively solved ( see FIG . 10 ) . China welding and fabrication near me Wholesale Manufacturer
before working , the self – made additional shockproof tool is arranged on a suitable position on the square knife rest , and then the required groove – shaped turning tool is arranged on the square knife rest , the distance and the compression amount of the spring are adjusted , so that the operation can be carried out , and when the lathe tool is cut into the workpiece , the additional anti – vibration tool is simultaneously pushed on the surface of the workpiece to play a good earthquake – proof effect . China welding and fabrication near me Wholesale Manufacturer
- additional live top cap
The small shaft machining in machining of various shapes, need to use the convertible top spire to live workpiece machining. The workpiece end head shapes, and smaller diameter, while the ordinary live centers are not used again, I was in the production practice, making their own additional live tip cap for various shapes of pre the installation can be used in ordinary living, pre on the tip.
13 . Application of honing finish for refractory materials
The surface roughness of the workpiece is required to be Ra 0.20 ~ 0.05 μm and the dimensional accuracy is high . The final finishing is usually carried out on the grinding machine . A simple honing tool and honing wheel can be manufactured by yourself , and better economic effects can be received in the lathe by honing instead of the refining process .