CN101623770A - U-turn boring method of slotted hole of horizontal boring machine - Google Patents

Abstract

The invention relates to a U-turn boring method of slotted hole of horizontal boring machine, comprising the following steps: 1) clamping slotted hole workpieces on a horizontal boring machine workbench; 2) roughly boring a whole inner bore; 3) processing an under-cut hole; 4) precisely boring an inner bore on one end; 5) rotating the horizontal boring machine workbench by 180 degrees; 6) regulating the main shaft of the horizontal boring machine so as to cause the main shaft to be coaxial with the axis of the slotted hole: installing a long boring tool shank on the main shaft of the horizontal boring machine; installing the shank of a test indicator in the pouter mortise of the end of the long boring tool shank; regulating the position of a contact of the test indicator so as to touch the surface of the precisely bored inner bore, and compressing a hand of the test indicator by 0.5mm; rotating the main shaft of the horizontal boring machine, and controlling a variation value of the hand of the test indicator within 0.01mm; 7) dismounting the long boring tool shank, and then installing a short boring tool shank; and 8) precisely boring an inner bore on the other end. The invention has the advantages that the short boring tool shank with higher rigidity can be utilized to precisely bore a long inner bore by rotating the horizontal boring machine workbench, and the boring efficiency and boring quality are improved.

Description

U-turn boring method of slotted hole of horizontal boring machine

Technical field:

The invention is to be used in the method that boring two ends on the horizontal boring machine need to leave in the middle of the right boring slotted hole of sky tool bore.

Background technology:

When need right boring with common horizontal boring machine right boring two ends in the middle of, leaving the slotted hole spare of sky tool bore, usually adopt the unidirectional feed of elongated knife bar of cantilever structure, because knife bar is long, very easily produce vibration, cause surface roughness overproof, for guaranteeing the bore hole precision, must reduce the horizontal boring machine speed of mainshaft,, reduce to 8 rev/mins sometimes to prevent producing vibration, working (machining) efficiency is extremely low, has wasted a large amount of man-hours.

Summary of the invention:

The purpose of the invention provides a kind of U-turn boring method of slotted hole of horizontal boring machine that can improve the working (machining) efficiency of the slotted hole spare that needs to leave in the middle of the right boring sky tool bore at horizontal boring machine right boring two ends; The purpose of the invention is to realize by following step:

U-turn boring method of slotted hole of horizontal boring machine, its step is as follows:

1), at horizontal boring machine workbench clamping slotted hole workpiece: with slotted hole workpiece hole centrally aligned point of a knife, point of a knife is vertical with place, hole face;

2), the whole endoporus of heavy boring;

3), process empty tool bore;

4), right boring one end endoporus;

5), with horizontal boring machine workbench Rotate 180 °;

6), adjust horizontal boring machine main shaft and slotted hole axis coaxle: long boring cutter bar is contained on the horizontal boring machine main shaft, the table bar of lever indicator is contained in the square mortise of long boring cutter bar termination, adjust the lever indicator contact position, bore area after making it contact right boring, and make the lever indicator indicator compress 0.5mm, rotate the horizontal boring machine main shaft, lever indicator indicator change value is controlled within the 0.01mm;

7), long boring cutter bar is unloaded the short boring cutter bar of dress;

8), right boring other end endoporus.

The advantage of the invention: by rotating the horizontal boring machine workbench, can use the better rigidity short sword bar can the long endoporus of right boring, and improve right boring efficient and right boring quality.

Description of drawings:

Fig. 1 is behind one end of right boring on the horizontal boring machine, after the horizontal boring machine workbench rotates 180 °, adjusts the structural representation of horizontal boring machine main shaft and slotted hole axis coaxle.

Among the figure: 1, the square mortise of an end endoporus 4 of lever indicator 2, lever indicator contact 3, right boring, empty tool bore 5, the endoporus 6 for the treatment of right boring one end, long boring cutter bar 7, horizontal boring machine main shaft 8, long boring cutter bar termination

The specific embodiment:

U-turn boring method of slotted hole of horizontal boring machine, its step is as follows:

1), at horizontal boring machine workbench clamping slotted hole workpiece: with slotted hole workpiece hole centrally aligned point of a knife, point of a knife is vertical with place, hole face;

2), the whole endoporus of heavy boring; One dish stays 4～5mm surplus;

3), process empty tool bore;

4), right boring one end endoporus; With better rigidity short sword bar right boring endoporus;

5), with horizontal boring machine workbench Rotate 180 °;

6), adjust horizontal boring machine main shaft and slotted hole axis coaxle: long boring cutter bar is contained on the horizontal boring machine main shaft, main shaft can move upper and lower, left and right, the table bar of lever indicator is contained in the square mortise of long boring cutter bar termination, adjust the lever indicator contact position, bore area after making it contact right boring, and make lever indicator indicator compression 0.5mm, and rotate the horizontal boring machine main shaft, lever indicator indicator change value is controlled within the 0.01mm;

7), long boring cutter bar is unloaded the short boring cutter bar of dress;

8), right boring other end endoporus.

By rotating the horizontal boring machine workbench, can use the better rigidity short sword bar can the long endoporus of right boring, and improve right boring efficient and right boring quality, two stomidium axialities of slotted hole reach 0.03mm, and bore hole luminosity is good, and surface roughness reaches 1.6, realize No. one time clamping, multistation processing

At horizontal boring machine workbench clamping slotted hole workpiece, the whole endoporus of heavy boring is processed empty tool bore, right boring one end endoporus, and with horizontal boring machine workbench Rotate 180 °, the operation of right boring other end endoporus all is conventional operations again.

Claims (1)

1, U-turn boring method of slotted hole of horizontal boring machine, its step is as follows:

1), at horizontal boring machine workbench clamping slotted hole workpiece: with slotted hole workpiece hole centrally aligned point of a knife, point of a knife is vertical with place, hole face;

2), the whole endoporus of heavy boring;

3), process empty tool bore;

4), right boring one end endoporus;

5), with horizontal boring machine workbench Rotate 180 °;

6), adjust horizontal boring machine main shaft and slotted hole axis coaxle: long boring cutter bar is contained on the horizontal boring machine main shaft, the table bar of lever indicator is contained in the square mortise of long boring cutter bar termination, adjust the lever indicator contact position, bore area after making it contact right boring, and make the lever indicator indicator compress 0.5mm, rotate the horizontal boring machine main shaft, lever indicator indicator change value is controlled within the 0.01mm;

7), long boring cutter bar is unloaded the short boring cutter bar of dress;

8), right boring other end endoporus.

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