CN100581697C

CN100581697C - Boring cutter self-feeding deep hole borer

Info

Publication number: CN100581697C
Application number: CN200810049979A
Authority: CN
Inventors: 宋保通; 宋冰冰
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-06-06
Filing date: 2008-06-06
Publication date: 2010-01-20
Anticipated expiration: 2028-06-06
Also published as: CN101288911A

Abstract

The invention relates to a deep hole boring lathe with a self-feeding boring cutter, which effectively solves the problems of large power demand, small feed amount and much power consumption. The boring lathe is characterized in that a gearbox is fixed on a lathe body and meshed with a planetary gear through a fixed wheel which is arranged on an output shaft; the gearbox is connected with a boring rod and the other end of the boring rod is arranged on the top end of a rear upright column which is arranged on the right end of a working platform on the lathe body; the boring rod is provided with the planetary gear through a rotating shaft; the gearbox drives the boring rod to rotate, the boring rod drives the planetary gear to rotate around the fixed wheel, and the planetary gear drives a coaxial gear and a lead screw gear which is meshed with the coaxial gear to rotate during the planetary gear in rotation; the lead screw gear is provided with a lead screw, the boring cutter is vertically arranged on the lead screw through a moving nut, and the rotation of the lead screw drives the moving nut to lead the boring cutter which is connected with the moving nut to make linear movement; the workpiece has no rotation and no feed, the boring rod only rotates and the boring cutter feeds automatically. The boring lathe provided by the invention has the advantages of novel and unique structure, high production efficiency, energy saving and high processing accuracy, thus having good social and economic benefits.

Description

Boring cutter self-feeding deep hole borer

One, technical field

The present invention relates to mechanical field, particularly a kind of boring cutter self-feeding deep hole borer.

Two, background technology

The world today is owing to the maximization of industrial technology equipment, and international development is very fast, needs the pachydermia pipe and the required deep hole boring machine of these pachydermia pipes of processing of a large amount of high-temperature-resistant high-pressure-resistants.This is new industry, originally the state-owned lathe of Chinese large-sized enterprise these equipments of layout seldom.Because original China substantially need not large-scale high-temperature-resistant high-pressure-resistant pachydermia pipe, have only indivedual large-scale state-owned machine tool industry enterprise to cross the detonator that cures fish to war production, the special-purpose deep hole boring machine of rocket pipe and gun tube.This several years large nuclear power stations of China, large thermal power plant, industrial developments such as large-scale cast tube pipe die and large-scale petrochemical equipment are very fast, need a large amount of deep hole boring machines, and the pachydermia pipe almost all is by import at present, the price height, the cycle is long.Along with the raising of China's manufacturing capacity also can be produced high-temperature-resistant high-pressure-resistant pachydermia pipe.So be badly in need of this deep hole boring machine now.Former large-scale state-owned lathe enterprise's the 80s and 90s has not been produced the ability of large-scale deep hole boring machine again owing to change products.And long by the original explained hereafter cycle, the cost height.So in great shortage this deep hole boring machine on the market.The method of indivedual enterprises with high load with small power arranged, and efficient is extremely low, the precision extreme difference, and manufacturing enterprise overstocks the large quantities of products and can't process, and seriously restricts the development of this new industry.

Traditional deep hole boring machine is chuck by a very big shaft transmission band, and the large-scale workpiece that is being installed rotates, and the boring bar that the back the single head support by the boring bar feed change case band of a complexity is done feed motion.Because large-scale workpiece will rotate, main shaft power will overcome the weight and the centrifugal force of large-scale workpiece self, so gearbox requires moment of torsion big, and manufactured materials intensity height, complicated movement, power demand is also big.Boring bar is because single head supports, and when the boring bar feeding depth was deepened, the boring bar deadweight was sagging, and rotating speed is very low, and the amount of feeding is very little.When the amount of feeding is crossed a half, sagging in order to prevent boring bar, must fill up the hardwood head near the boring head, like this spin friction power is bigger, and consumed power is more, and the rotating speed and the amount of feeding are littler, and efficient is just lower.The reform of deep hole boring machine is imperative.

Three, summary of the invention

For overcoming the problem that prior art exists, the present invention's purpose is to provide a kind of novel boring cutter self-feeding deep hole borer, can effectively solve manufactured materials intensity height, complicated movement, power demand is big, the amount of feeding is little, frictional force is big, the problem that consumed power is many, the technical scheme of its solution is, the present invention includes lathe bed, boring bar and gearbox, gearbox is fixed on the lathe bed by support, gearbox is meshed with planetary gear by the fixed wheel on the output shaft, gearbox links to each other with boring bar, the boring bar other end is contained on rear column top of the workbench right-hand member on the lathe bed, through turning cylinder planetary gear is housed on the boring bar, gearbox drives the boring bar rotation, boring bar drives planetary gear and rotates around fixed wheel, the screw gear rotation that the planetary gear time rotational drives in-line gears and is meshed with in-line gears, screw mandrel is housed on the screw gear, the boring cutter body vertically is contained on the screw mandrel by travelling nut, the screw mandrel rotation drives travelling nut and orders about the boring cutter body rectilinear motion that links to each other with travelling nut, workpiece does not rotate, not feeding, boring bar only rotates, boring cutter body self-feed.Novel structure uniqueness of the present invention, easy to install, the production efficiency height, energy-conservation, the machining accuracy height has good society and economic benefit.

Four, description of drawings

Accompanying drawing is a structural representation of the present invention.

Five, the specific embodiment

Below in conjunction with accompanying drawing the specific embodiment of the present invention is done detailed explanation.

Provide by accompanying drawing, the present invention includes lathe bed, boring bar and gearbox, gearbox 1 is fixed on the lathe bed 5 by support 15, gearbox 1 is meshed with planetary gear 9 by the fixed wheel on the output shaft 8, gearbox 1 links to each other with boring bar 2, boring bar 2 other ends be contained in workbench 7 right-hand members on the lathe bed 5 rear column 3 top 4 on, through turning cylinder planetary gear 9 is housed on the boring bar 2, gearbox 1 drives boring bar 2 rotations, boring bar 2 drives planetary gear 9 around fixed wheel 8 rotations, screw gear 11 rotations that planetary gear 9 time rotationals drive in-line gears 10 and are meshed with in-line gears 10, screw mandrel 12 is housed on the screw gear 11, and boring cutter body 14 vertically is contained on the screw mandrel 12 by travelling nut 13, and screw mandrel 12 rotations drive travelling nut 13 orders about boring cutter body 14 rectilinear motions that link to each other with travelling nut, workpiece 6 does not rotate, not feeding, 2 rotations of boring bar, boring cutter body 14 self-feeds, during use, workpiece 6 is installed on the workbench 7.

In order to guarantee result of use, the guide rail (in figure do not demonstrate) parallel with boring bar 2 arranged on the said lathe bed 5, workbench 7 is contained on the parallel guide rail on the lathe bed 5, and is fixed by screw-nut; There is closed slide to support (not demonstrating among the figure) on the boring bar 2.

When the present invention uses, the gearbox 1 that utilization links to each other with motor output shaft drives boring bar 2 rotations, drive planetary gear 9 during boring bar 2 rotations around fixed wheel 8 rotations, planetary gear 9 links to each other with in-line gears 10, time rotational drives in-line gears 10 rotations, thereby makes screw gear 11 rotations that are meshed with in-line gears 10, thereby drives leading screw 12 rotations, drive travelling nut 13 again and order about boring cutter body 14 rectilinear motions that link to each other with nut, finish the boring function.

The present invention is that the inventor is analyzing design principle, the kind of drive of various large-scale deep hole boring machines both at home and abroad by understanding, and design on the basis of market to requirement of technology etc., the present invention is that workpiece does not rotate, not feeding, boring bar only rotates, the self-feeding deep hole borer of the up-to-date mode of boring cutter body self-feed.

The present invention compares with the large-scale deep hole boring machine of traditional various countries, and the advantage that has is as follows: 1, workpiece does not revolve Turn to not feeding, can save original 80% power source; 2, boring bar only rotates not feeding, and the boring cutter body is from advancing Give, double end supports, and forever overcomes the boring bar sagging, has eliminated the friction that boring head pad hardwood head consumes Power; 3, the feeding of boring cutter body is to have closed slide to support at boring bar, thus the machining accuracy height, the boring bar double end Thereby support can improve rotating speed raises the efficiency more than three times.

Claims

1, a kind of boring cutter self-feeding deep hole borer, comprise lathe bed, boring bar and gearbox, it is characterized in that, gearbox (1) is fixed on the lathe bed (5) by support (15), gearbox (1) is meshed with planetary gear (9) by the fixed wheel on the output shaft (8), the same boring bar of gearbox (1) (2) links to each other, boring bar (2) other end is contained on top (4) of rear column (3) of workbench (7) right-hand member on the lathe bed (5), boring bar (2) is gone up and through turning cylinder planetary gear (9) is housed, gearbox (1) drives boring bar (2) rotation, boring bar (2) drives planetary gear (9) and rotates around fixed wheel (8), screw gear (11) rotation that planetary gear (9) time rotational drives in-line gears (10) and is meshed with in-line gears (10), screw mandrel (12) is housed on the screw gear (11), boring cutter body (14) vertically is contained on the screw mandrel (12) by travelling nut (13), screw mandrel (12) rotation drives travelling nut (13) and orders about boring cutter body (14) rectilinear motion that links to each other with travelling nut, workpiece (6) does not rotate, not feeding, boring bar (2) is rotation only, boring cutter body (14) self-feed.

2, boring cutter self-feeding deep hole borer according to claim 1 is characterized in that, has on the said lathe bed (5) and the parallel guide rail of boring bar (2), and workbench (7) is contained on the parallel guide rail on the lathe bed (5), and is fixed by screw-nut.