CN201807754U - Processing tool for boring high-precision multi-gear shaft holes - Google Patents

Processing tool for boring high-precision multi-gear shaft holes Download PDF

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Publication number
CN201807754U
CN201807754U CN 201020543369 CN201020543369U CN201807754U CN 201807754 U CN201807754 U CN 201807754U CN 201020543369 CN201020543369 CN 201020543369 CN 201020543369 U CN201020543369 U CN 201020543369U CN 201807754 U CN201807754 U CN 201807754U
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CN
China
Prior art keywords
boring
processing
boring bar
cutter
tool
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201020543369
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Chinese (zh)
Inventor
郭彩芳
李瑞杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henan Diesel Engine Industry Co Ltd
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Henan Diesel Engine Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Henan Diesel Engine Industry Co Ltd filed Critical Henan Diesel Engine Industry Co Ltd
Priority to CN 201020543369 priority Critical patent/CN201807754U/en
Application granted granted Critical
Publication of CN201807754U publication Critical patent/CN201807754U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model belongs to the technical field of machining, and relates to a processing tool for boring high-precision multi-gear shaft holes. The processing tool consists of a boring rod (1), boring cutter heads (2), a screw (3) and a guide sleeve (4); the centers of cutter holes pass through the center of the boring rod, the cutter holes are distributed on the same section of the axial direction of the boring rod, and the position of the cutter hole corresponds to the position of a processed hole of each gear; the boring cutter heads are arranged in the corresponding cutter holes of the boring rod according to the work step specification and compacted by using the screw (3) from the lateral surface; and the cutter heads are in a consistent direction, the inside diameter of the guide sleeve (4) with supporting and guiding effects is matched with the outside diameter of the boring rod (1), and the inside diameter of the guide sleeve (4) is matched with the shaft hole of a part (7). Under the condition that facilities such as a special machine tool, a special clamp and the like are not used, the processing tool can well finish processing of the high-precision multi-gear shaft holes in new product trial-manufacture processing, reduces the processing cost to a large extent, and is suitable for single produced large-sized box parts with multiple axial gears and high processing precision requirement.

Description

A kind of machining tool of boring high-precision multi-level shaft hole
Technical field
The utility model belongs to the Machining Technology field, relates generally to a kind of machining tool of boring high-precision multi-level shaft hole, can be applied to the processing of large-size box type part multi-level shaft hole.
Background technology
At machine industry, heavy mechanical equipment generally all by the large-size box part as fundamental parts, be used for supporting, connect and fix other parts.The higher multi-level shaft hole of a plurality of precision is all arranged on the large-size box part, be used to assemble shafting components, and make the position relation that assurance is correct between each part, to satisfy the service behaviour requirement of machine.Therefore the processing of these deep holes is key links of whole part processing.
At present, to the following two kinds of processing methods of the normal employing of large-size box part high-precision multi-level shaft hole processing: a kind of is to adopt special purpose machine tool processing, and another kind is to adopt special fixture processing.These two kinds of methods all be adopt the line boring bar join many boring cutter along the feed of part axis hole direction, process each grade axis hole simultaneously, the line boring bar is by the axiality of the guider on the anchor clamps as guiding assurance multi-level shaft hole.Guider is made up of guiding die plate, bearing, fairlead etc., and quantity is determined by axis hole shelves number.These two kinds of method stable processing quality, production efficiency is higher, is suitable for producing in batches.
When new product development, the processing of large-size box part multi-level shaft hole then need design, make special purpose machine tool or anchor clamps if adopts above method, and the manufacturing cycle is long, and investment is high, and manufactures experimently and have a big risk, so be not suitable for the processing of trial production of new products stage multi-level shaft hole.For addressing this problem, need seek the processing method that a kind of cost is low, the cycle is short, precision is high.
Summary of the invention
The utility model purpose is the machining tool that proposes a kind of boring high-precision multi-level shaft hole, runs through the technical barrier of the high-precision multi-level shaft hole processing of total length with solution trial production of new products stage large-size box type part, and makes it have characteristic of simple structure.
Goal of the invention of the present utility model is achieved through the following technical solutions:
A kind of machining tool of boring high-precision multi-level shaft hole is made up of boring bar, cutter head, screw and fairlead; Described boring bar is provided with a plurality of tool bores, and the tool bore center is by the boring bar center, and each tool bore is distributed on the axial same cross section of boring bar, and the tool bore position is corresponding with each grade of part machining hole position; Described cutter head is contained in by work step regulation in the corresponding tool bore of boring bar and with screw and compresses from the side; Cutter head direction unanimity plays its internal diameter of fairlead and the boring bar external diameter kiss of supporting guide effect and joins, and its external diameter and part axis hole kiss are joined.
The processing method that the utility model proposes machining tool is as follows:
At first, utilize numerical control device to process each 2 grades of axis hole of part two ends, oriention benchmark as middle bay axis hole processing, the axiality of axis hole is guaranteed by lathe and cutter, the machining tool that adopts the present invention to propose then utilizes boring machine processing parts axis hole, dependence be installed in two ends the fairlead on the machining hole do guiding, during each grade axis hole, process step by step to the centre in the middle of the processing from the part two ends; The concrete operations step: earlier this part is installed on the boring table, the boring bar two ends with the tool bore that faces mutually the fairlead position is installed in 1 cutter head is installed respectively, adjust cutter head after processing dimension, compress from the side with screw; Boring bar is penetrated the part multi-level shaft hole, fairlead penetrates from the boring bar two ends respectively, its internal diameter cooperates with the boring bar outside dimension, external diameter has been processed the axis hole size with part and has been cooperated, adjusting lathe makes its alignment of shafts overlap with part axis hole center, then boring bar is connected with machine tool chief axis, the fairlead of installing on the axis hole of having processed with two ends is a guiding, and the processing parts two ends are near each 1 grade of machining hole side; After processing, boring bar is separated with machine tool chief axis, fairlead is taken out from the boring bar two ends respectively, again boring bar and part axis hole are departed from certain distance, guarantee that cutter head with after machining hole is collided does not take out; Using such method repeats above step until processing all grades axis hole, and stroke of boring bar all is greater than the axis hole degree of depth to be processed during each boring; Can adjust the cutter radial size if each boring is undressed to aperture size, repeat this step till aperture size is qualified.
Method that the utility model proposes and machining tool under the situation that does not have facilities such as special purpose machine tool, special fixture to drop into, can be finished the processing of high-precision multi-level shaft hole in the trial production of new products processing preferably, have reduced processing cost largely; Be applicable to the large-size box type part of axially opening the single-piece production that grade number is many, requirement on machining accuracy is high.
Description of drawings
Accompanying drawing is the utility model user mode schematic diagram.
Among the figure: 1, boring bar, 2, cutter head, 3, screw, 4, fairlead, 5, boring machine, 6, main shaft, 7, part, 8, workbench.
The specific embodiment
Reaching embodiment in conjunction with the accompanying drawings is illustrated the utility model:
As shown in drawings, machining tool of the present utility model is made up of boring bar 1, cutter head 2, screw 3 and fairlead 4.Boring bar 1 is provided with a plurality of tool bores, and the tool bore center is by boring bar 1 center, and each tool bore is distributed on the axial same cross section of boring bar 1, and the tool bore position is corresponding with each grade of part machining hole position; Cutter head 2 is contained in the corresponding tool bore of boring bar 1 by the work step regulation, and cutter head direction unanimity is adjusted cutter head 2 after processing dimension, compresses from the side with screw 3; During part 7 borings, at first utilize numerical control device to process each 2 grades of axis hole of part 7 two ends, as the oriention benchmark of middle bay axis hole processing, the axiality of axis hole is guaranteed by lathe and cutter.
Then, part 7 is installed on the workbench 8 of boring machine 5, boring bar 1 two ends with the tool bore that faces mutually fairlead 4 positions is installed in 1 cutter head 2 is installed respectively, adjust cutter head 2 after processing dimension, compress from the side with screw 3; Boring bar 1 is penetrated part 7 multi-level shaft holes, and fairlead 4 penetrates from boring bar 1 two ends respectively, and its internal diameter cooperates with boring bar 1 outside dimension, and external diameter has been processed axis hole with part 7 and cooperated; Adjusting boring machine 5 makes its main shaft 6 centers overlap with part 7 axis hole centers, then boring bar 1 is connected with boring spindle 6, the fairlead of installing on the axis hole of having processed with part 7 two ends 4 is a guiding, rotary power by main shaft 6 drives boring bar 1 rotation, workbench 8 feedings, make cutter head 2 axial feeds that are installed on the boring bar 1, each 1 grade of the close machining hole side in processing parts 6 two ends; After processing, boring bar 1 is separated with boring spindle 6, fairlead 4 is taken out from boring bar 1 two ends respectively, again boring bar 1 and part 7 axis holes are departed from certain distance, guarantee that cutter head 2 with after machining hole is collided does not take out.Using such method repeats above step until processing all grades axis hole, and boring bar 1 stroke all is greater than the axis hole degree of depth to be processed during each boring.Can adjust the cutter radial size if each boring is undressed to aperture size, repeat this step till aperture size is qualified.
If part 7 is big and axis hole shelves number is more, time processing can not guarantee requirement on machining accuracy, can process several times, and each processing is all done guiding with 2 grades of axis holes of processing of Kong Xianglin to be processed, the 1 gear shaft hole that processing and machining hole face mutually.
Fairlead 4 and the fit clearance of accessory mutually are the keys that guarantees each grade axis hole processing dimensions and axiality in the middle of the part 7.It is little that fairlead 4 and part 7 have been processed between the axis hole gap, no relative motion, and the gap is big between fairlead 4 internal diameters and the boring bar 1, boring bar 1 rotates in fairlead 4, the hardness of boring bar 1 is higher than the hardness of fairlead 4, adds the man-hour boring bar and 1 can not be worn, and fairlead 4 wearing and tearing backs are replaceable.Fairlead 4 internal diameters and boring bar 1 external diameter fit clearance are in the 0.020-0.040mm scope, fairlead 4 external diameters and part 7 have been processed the axis hole fit clearance in the 0.015-0.025mm scope, should guarantee effective support of 4 pairs of parts 7 of fairlead, guarantee the smooth rotation of boring bar 1 again at fairlead 4.

Claims (1)

1. the machining tool of a boring high-precision multi-level shaft hole, it is characterized in that: described machining tool is made up of boring bar (1), cutter head (2), screw (3) and fairlead (4); The tool bore center is by the boring bar center, and each tool bore is distributed on the axial same cross section of boring bar, and the tool bore position is corresponding with each grade of part machining hole position; Described cutter head is contained in the corresponding tool bore of boring bar and compresses from the side with screw (3) by work step regulation; Cutter head direction unanimity, fairlead (4) internal diameter that plays the supporting guide effect cooperates with boring bar (1) external diameter, and its external diameter cooperates with part (7) axis hole.
CN 201020543369 2010-09-27 2010-09-27 Processing tool for boring high-precision multi-gear shaft holes Expired - Fee Related CN201807754U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201020543369 CN201807754U (en) 2010-09-27 2010-09-27 Processing tool for boring high-precision multi-gear shaft holes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201020543369 CN201807754U (en) 2010-09-27 2010-09-27 Processing tool for boring high-precision multi-gear shaft holes

Publications (1)

Publication Number Publication Date
CN201807754U true CN201807754U (en) 2011-04-27

Family

ID=43890703

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201020543369 Expired - Fee Related CN201807754U (en) 2010-09-27 2010-09-27 Processing tool for boring high-precision multi-gear shaft holes

Country Status (1)

Country Link
CN (1) CN201807754U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101979198A (en) * 2010-09-27 2011-02-23 河南柴油机重工有限责任公司 Method for boring high-precision multi-gear axle hole and machining tool
CN102398057A (en) * 2011-10-25 2012-04-04 姜希尚 Processing method of a creeper tread

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101979198A (en) * 2010-09-27 2011-02-23 河南柴油机重工有限责任公司 Method for boring high-precision multi-gear axle hole and machining tool
CN101979198B (en) * 2010-09-27 2012-05-23 河南柴油机重工有限责任公司 Method for boring high-precision multi-gear axle hole and machining tool
CN102398057A (en) * 2011-10-25 2012-04-04 姜希尚 Processing method of a creeper tread
CN102398057B (en) * 2011-10-25 2013-03-20 姜希尚 Processing method of a creeper tread

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GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110427

Termination date: 20120927