Common maintenance tools for CNC machine tools flat bed hard rail machine tools

1. disassembly and assembly tools

• Single head hook wrench: it is divided into fixed type and adjustable type, which can be used to pull round nuts with straight slots or holes in the circumferential direction.

• Round nut wrenches with grooves or holes on the end face: they can be divided into socket wrenches and double pin fork wrenches.

• Pliers for circlip assembly and disassembly: it is divided into pliers for shaft circlip assembly and disassembly and pliers for hole circlip assembly and disassembly.

• Elastic hand hammer: it can be divided into a wooden hammer and a copper hammer.

• Drawing taper flat key tools: it can be divided into impact type drawing taper flat key tools and push-pull type drawing taper flat key tools.

• Small shaft and taper pin tool (commonly known as pin puller) for drawing internal thread.

• Pull-off tools: when disassembling and assembling rolling bearings, pulley-type couplings, and other parts on the shaft, pull-off tools are commonly used. Pull-off tools are usually divided into screw types and hydraulic types. Screw-type pull-off tools are divided into two claws, three claws, and hinge types.

• Pull open the cotter pin wrench and pin punch.

2. common mechanical maintenance tools

• Ruler: divided into a flat ruler, knife-edge ruler, and 90 ° angle ruler.

• Sizing block: sizing block with 90 ° surface, 55 ° angle surface, and level.

• Inspection rod: there are inspection rods with standard taper handles, cylindrical inspection rods, and special inspection rods.

• Lever micrometer: when the geometric accuracy of parts is required to be high, the use of a lever micrometer can meet its measurement requirements, and its measurement accuracy can reach 0.001mm.

• Angle ruler: a measuring tool used to measure the internal and external angles of the workpiece. It can be divided into 2 'and 5' according to the reading value of the vernier and can be divided into circular and fan-shaped according to the shape of the ruler's body.

Common maintenance instruments for CNC machine tools

1. dial indicator

The dial indicator is used to measure the parallelism between parts, the parallelism between the axis and the guide rail, the straightness of the guide rail, the flatness of the worktable surface, and the end face circular runout, radial circular runout, and axial movement of the spindle.

2. lever dial indicator

The lever dial indicator is used for workpieces subject to space constraints, such as inner hole runout, keyway, etc. When using, pay attention to making the measurement movement direction perpendicular to the center of the probe to avoid measurement error.

3. dial indicator and lever dial indicator

The working principle of a dial indicator and a lever dial indicator is the same as that of a dial indicator and lever dial indicator, but the division value is different, which is often used in the repair of precision machine tools.

4. Comparator

The comparator can be divided into torsion spring comparator and lever gear comparator. The torsion spring comparator is especially suitable for the measurement of runout with high accuracy requirements.

5. level gauge

The level gauge is one of the commonly used measuring instruments in machine tool manufacturing and repair. It is used to measure the straightness of the guide rail in the vertical plane, the flatness of the worktable surface, and the perpendicularity and parallelism between parts. According to its working principle, the level gauge can be divided into level type level gauge and electronic level gauge. There are three types of levels: bar level, frame level, and combined image level.

6. optical straighter

In mechanical maintenance, it is often used to check the straightness of the bed guide rail in the horizontal and vertical planes, and the flatness of the flat plate for inspection. The optical straighter is one of the more advanced instruments in the current guide rail straightness measurement methods.

7. Theodolite

Theodolite is one of the high-precision instruments commonly used in the precision inspection and maintenance of machine tools. It is often used to measure the indexing accuracy of CNC milling machines and horizontal turntables of machining centers. It is usually used together with a collimator to form an optical system.

8. Tachometer

The tachometer is often used to measure the speed of the servo motor and is one of the important basis for checking the servo speed regulation system. Commonly used tachometers include a centrifugal tachometer and digital tachometer.

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