Boring machine

A boring machine and boring bar technology, applied in the field of boring machines, can solve the problems of small processing space, large volume, heavy weight, etc.

Active Publication Date: 2011-10-19
湖南省力宇燃气动力有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the hole depth and diameter are small, especially for holes with a length-to-diameter ratio of not less than 5.2, and the requirements for dimensional accuracy and position accuracy are high, ordinary drilling ma

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] A boring machine such as figure 1 As shown, there are a boring knife feed drive device, a feed screw 200, a boring knife, a boring bar 400, a gear box part, a fixing bracket for a gear box part, a boring bar rotation driving device, and a boring bar positioning mechanism.

[0050] The boring bar positioning mechanism is provided with a first bolt 810 , a first nut 820 , a pressing tube 830 , an upper cone shaft 840 , a lower cone shaft 860 , a positioning taper sleeve 850 and a boring bar positioning shaft 880 .

[0051] The boring bar positioning shaft 880 is provided with a first hole 881 for assembling the positioning taper sleeve 850 and a second hole 882 for assembling the boring bar 400 .

[0052] The lower part of the first bolt 810 is threadedly connected with the lower cone shaft 860, the upper cone shaft 840 is sleeved on the outside of the first bolt 810 and arranged on the upper part of the upper cone shaft 840, and the positioning taper sleeve 850 is sleeve...

Embodiment 2

[0071] A V-shaped 20-cylinder engine with a power of 2000KW that is often used in production has two tappet holes of the camshaft, one of which has been worn out and becomes the tappet hole 2 for OEM processing, with a size of φ39.3mm . The other is intact and becomes the unworn tappet hole 1 with a size of φ39.02mm. If you need to continue to use, you must ream the worn hole and insert a bushing to continue normal use.

[0072] According to the characteristics of the tappet hole depth, small diameter, high dimensional accuracy and position accuracy, the invention provides a boring machine, which adopts processing technology to expand the hole and insert the bushing.

[0073] The cup lifter hole 2 to be processed is as follows: the size is φ39.3 mm in diameter, the hole depth is 70 mm, and the distance from the 980 cylinder head surface of the body is 230 mm. The hole is the hole for assembling the tappet, and the standard size should be φ39 mm, the actual wear is φ39.3mm....

Embodiment 3

[0121] A kind of boring machine, other structure is the same as embodiment 2, the difference is: the size of this boring machine is different from embodiment 2, the boring machine in this embodiment is applied to the hole size of the original tappet with a diameter of φ43 .9mm, hole depth is 20mm. Relevant dimensions can be adjusted as needed to meet the requirements, and details will not be repeated here.

[0122] Finally, it should be noted that the applicable occasions of the boring machine are not limited to the occasions of Embodiment 2 and Embodiment 3, and the boring machine is also suitable for other sizes of holes, as long as the relevant dimensions are adjusted according to specific needs.

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PUM

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Abstract

The invention provides a boring machine, comprising a boring cutter feeding driving device, a feeding screw rod, a boring cutter, a boring rod, a gearbox part, a gearbox part fixing bracket, a boring rod rotation driving device, and a boring rod positioning mechanism, wherein the boring rod positioning mechanism is provided with a first bolt, a first nut, a pressing pipe, an upper conical shaft, a positioning conical sleeve, a lower conical shaft and a boring rod positioning shaft; the feeding screw rod is assembled in the boring rod; one end of the feeding screw rod is connected with the boring cutter feeding driving device; the other end of the feeding screw rod is arranged in the boring rod; a cutter block is arranged at the lower part of the feeding screw rod; the gearbox part is arranged on the gearbox part fixing bracket and is assembled on the external surface of the boring rod; the gearbox part drives the boring rod to rotate; the boring rod rotation driving device is connected with the gearbox part; and the lower part of the boring rod is arranged in the second hole of the boring rod positioning shaft. The boring machine has small volume, light weight, compact structure, high machining precision on parts and small fitting clearance, and can be used for carrying out boring on the hole with depth and small aperture.

Description

technical field [0001] The invention relates to the field of drilling equipment, in particular to a boring machine. Background technique [0002] In industrial processing, drilling is often required. For ordinary holes, the holes can be drilled by a drilling machine. For some holes with relatively large length and diameter, it needs to be drilled by a boring machine. However, when the hole depth and diameter are small, especially for holes with an aspect ratio of not less than 5.2, and the requirements for dimensional accuracy and position accuracy are high, ordinary drilling machines or boring machines cannot achieve it. Especially for parts or machines with large volume, heavy weight, and small processing space, ordinary drilling machines or boring machines cannot realize this kind of drilling processing. [0003] Aiming at the deficiencies of the prior art, it is very necessary to provide a boring machine suitable for this situation to solve the deficiencies of the pri...

Claims

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Application Information

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IPC IPC(8): B23B41/02B23B47/00B23B47/30
Inventor 王跃峰谢勇儒旷海中龙四荣张晓坚武得钰
Owner 湖南省力宇燃气动力有限公司
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