The use of drilling machine and precautions
As a versatile machine tool for a wide range of purposes, the drilling machine can drill, reaming, reaming, counterfacing and tapping parts. As follows:
1. Wear tight protective clothing before operation, buckle the sleeves tightly, and the bottom of the coat can not be opened. Gloves are strictly prohibited, and clothes should not be worn or changed next to the machine tool in operation, or wrapped around the body to prevent machine injuries. Must wear a hard hat, braid should be put into the hat, do not wear skirts, slippers.
2. Before driving, check whether the machine tool transmission is normal, tools, electrical and safety protection devices, whether the coolant water baffle is intact, the safety block on the drilling machine, and the block is not allowed to be removed, and adjust the use according to the processing situation.
3. When the radial drilling machine clips or corrects the workpiece, the radial arm must be moved away from the workpiece and raised, the brake is good, and the working object must be pressed or clamped with the press plate to avoid turning and throwing out the injury.
4, do not put other things on the drilling machine bed, change the drill, fixture and loading and unloading parts must be stopped. With burrs and unclean taper handle, it is not allowed to load the spindle taper hole, loading and unloading drill bits should use wedge iron, it is strictly prohibited to beat with a hand hammer.
5, drill small workpiece, to use a vice, clamp and then drill. Do not stop a rotating drill with your hands.
6, thin plate, large or long workpiece vertical drilling, must be pressed, it is strictly prohibited to use the hand to support the processing, the workpiece drilling through the hole should be reduced pressure slow, to prevent damage to the platform.
7, after the machine is started, it is forbidden to wear gloves to operate, remove the iron filings with a brush, and it is forbidden to blow with the mouth.
8, drilling machine and rocker arm rotation range, do not stack items, should be kept clean.
9. After the work is completed, the power supply should be cut off, the drill should be removed, the headstock must be close to the end, the transverse arm should be lowered to the lower side of the column, and the car should be braked to prevent accidents. At the same time, clean the tools and do a good job of machine maintenance.
What are the precautions of drilling machine
1.Wear professional clothing. The clothing before operation is of paramount importance. Tight-fitting clothes must be worn, with all cuffs fastened, and the clothes should not be open. Do not operate without gloves. A safety helmet must be worn. If the operator is a female, hair must be tucked into the safety helmet and not left loose. Do not change clothes beside the machine tool to avoid accidental injury from the running machine.
2. Inspect the equipment in advance. Before starting the drilling machine, it is necessary to check whether the transmission, safety protection devices, electrical devices, etc. of the machine tool are in good condition. Adjustments should be made according to the current work situation. It is essential to conduct a thorough inspection to avoid any potential harm caused by improper installation of the devices.
3. Operating Skills. When operating, there are many small points that must be noted. Firstly, no other items should be placed on the bed of the drilling machine. When changing fixtures or loading and unloading workpieces, the drilling machine must be stopped before operation. If the taper shank has burrs or is not clean, it cannot be inserted into the taper hole of the spindle. When loading and unloading drill bits, it is not allowed to strike them with a hand hammer. When drilling small workpieces, do not be careless and hold the drill bit by hand; a bench vise should be used instead. When drilling thin plates or large workpieces, it is not allowed to hold them by hand during processing.
4. Do a good job of maintenance. After using the drilling machine, it is necessary to cut off the power supply in time, remove the drill bit and brake, clean the tools, and do a good job of maintenance to avoid accidents.
What are the characteristics of drilling machines
A drilling machine is a type of machine tool mainly used for drilling holes in workpieces with drill bits. Generally, the drill bit rotates as the primary motion, and the drill bit moves axially as the feed motion. Drilling machines have a simple structure and relatively low processing accuracy. They can drill through holes and blind holes. By replacing special tools, they can also perform operations such as reaming, counterboring, tapping, and boring. During the processing, the workpiece remains stationary while the tool moves. The center of the tool is aligned with the center of the hole, and the tool rotates (primary motion). The characteristic of a drilling machine is that the workpiece is fixed while the tool rotates.
The drilling machine is a versatile machine tool with wide applications. It can perform operations such as drilling, reaming, boring, counterboring and tapping on parts. When equipped with process equipment, it can also be used for boring. With a universal worktable, it can carry out drilling, reaming and boring.
CNC lathe programming and operation
Blank is medium 22x90, all chamfer is 1x45°
一、Teaching purpose:
1. Master the concept and importance of the knife.
2. Master programming and processing of end face, outer circle and taper.
3, can master the accuracy of the tool inspection method and adjustment.
4, abide by the operating procedures, develop the good habits of civilized operation and safe operation
二、Processing operation steps:
When processing the part, the outline of the part is generally processed first, and the total length of the part is turned after cutting off the part. Programming zero is set on the axis line of the right end face of the part.
1, clip parts blank, protruding chuck length 76 mm.
2. Car end face.
3, rough, finishing parts outline to size requirements.
4, cut off parts, the total length of 0.5mm
5, parts turn, clamp 21 outer circle (correction)
6, processing parts total length to size requirements (program omitted)
7, change the knife point, the program is over.
三、Note:
1. Make sure that the tool position of the tool installation is consistent with the tool number in the program.
2, carefully check and confirm whether it conforms to the automatic processing mode.
3, flexible use of magnification repair switch.
4. In order to ensure the correct tool, the outer circle and end face of the workpiece should be manually turned before the tool.
5. The length of the machine tool exceeds the limit of 15 mm.
四、Tools used:
Reference program:
00233 ;
N10 G50 X50 Z50;
N20 M3 SO2 TO202;
Set the coordinate system (starting point)
Call coarse turning tool, spindle low
Fast ahead turn：
N30 G00 X22 Z2;
N40 G71 U2 R1;
Retracting knife 1mm
N50 G71 P60 Q140 U0.2 W0.2 F100:
Fast positioning, close to the workpiece
4mm per feed (diameter)
External outline rough machining, allowance X, Z direction 0.2mm