CN109834306A - A kind of boring cutter for processing elbow inner hole within 180 ° - Google Patents
A kind of boring cutter for processing elbow inner hole within 180 ° Download PDFInfo
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- CN109834306A CN109834306A CN201910215731.0A CN201910215731A CN109834306A CN 109834306 A CN109834306 A CN 109834306A CN 201910215731 A CN201910215731 A CN 201910215731A CN 109834306 A CN109834306 A CN 109834306A
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- China
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- universal joint
- boring cutter
- hollow cylinder
- fixed plate
- knife bar
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Abstract
The present invention relates to boring processing technique fields, and in particular to a kind of boring cutter for processing elbow inner hole within 180 °.It uses external form at the tool sharpening of 95 ° of circular arcs, it is ensured that processing quality and machining accuracy.The present invention includes hollow cylinder arc knife bar, is in 95 ° of circular shape；The centre and both ends of the hollow cylinder arc knife bar are respectively arranged with universal joint fixed plate, through-hole is provided in intermediate universal joint fixed plate, several universal joints being connected in series are provided in hollow cylinder arc knife bar, several universal joints being connected in series are separated and are symmetrical arranged by intermediate universal joint fixed plate, the universal joint of intermediate universal joint fixed plate two sides is connected by the connector being set in through-hole, the universal joint at both ends stretches out in hollow cylinder arc knife bar both ends, one end is provided with telescopic boring cutter blade by knife rest, the other end is connected with main shaft connection handle.
Description
Technical field
The present invention relates to boring processing technique fields, and in particular to a kind of boring cutter for processing elbow inner hole within 180 °.
Background technique
With the development of the technologies such as aerospace, robot, new energy, precision machinery, science and techniques of defence, to the essence of part
The requirement of the performances such as degree, intensity, quality, service life, stability is constantly promoted.With mechanical precision, the raising of complexity, machine
The application range in the rapid development of the manufacturing progress of tool and domestic heavy industry and light industry, crooked pipeline and regular curve hole
Also constantly expanding.Due to crooked pipeline answering in the precision instruments such as aerospace, nuclear power source, high-precision meter, engine
With the requirement to its precision is continuously improved.
For the processing scheme of elbow inner hole, France devises a numerically-controlled machine tool but is only capable of processing 50 ° of elbows, and processes
Workpiece out is also off-gauge bending cylindrical surface.And the brainstrust studied then proposes the method that the special process can be used
The inner hole of elbow is processed, the main tapping of electrode tip and spark-erosion machine tool connects using spring and existed by this processing method
Three steel wires are evenly distributedly connected on the circumference of spring free end.Originally, drawing of the free end of spring by three steel wires
State in compression, and the upper end of steel wire is connected respectively on their length adjusting mechanism around pulley.In processing, lead to
It crosses and controls the length adjusting mechanism of each steel wire and adjust their burst size, so that the posture and orientation of spring free end are controlled,
Be bent it in the predetermined direction with corresponding curvature, thus the electrode tip that is connected with spring free end of control process it is curved
Hole.Due to being connected between electrode tip and main tapping using spring, in process, it is very difficult to control the vibration of spring
It is dynamic, to influence the roughness in processed hole, precision;The efficiency of this processing method is very low.In addition, deeper and deeper when processing
When, spring is increasingly longer, and rigidity worse and worse, causes the stability in process constantly to decline therewith.It furthermore is exactly artificial
Polishing, due to processing difficulties, so obtained workpiece accuracy is poor, at high cost, low efficiency.
Summary of the invention
In view of this, the present invention is to solve the problems, such as that elbow can not be corrected within above-mentioned 180 °, a kind of 180 ° of processing is provided
Within elbow inner hole boring cutter, use external form at the tool sharpening of 95 ° of circular arcs, it is ensured that processing quality and machining accuracy.Boring
When, workpiece is mounted on platen, and using single point boring, blade clamping is on cutter hub, the rotation of main shaft drives blade,
Workbench drives workpiece rotation feeding, is processed.
In order to solve the problems existing in the prior art, the technical scheme is that a kind of process elbow inner hole within 180 °
Boring cutter, it is characterised in that: be in 95 ° of circular shape including hollow cylinder arc knife bar；The hollow cylinder curved knife
The centre and both ends of bar are respectively arranged with universal joint fixed plate, are provided with through-hole, hollow cylinder in intermediate universal joint fixed plate
Several universal joints being connected in series are provided in arc knife bar, several universal joints being connected in series are fixed by intermediate universal joint
Plate is separated and is symmetrical arranged, and the universal joint of intermediate universal joint fixed plate two sides is connected by the connector being set in through-hole,
The universal joint at both ends stretches out in hollow cylinder arc knife bar both ends, and one end is provided with telescopic boring cutter blade by knife rest, separately
One end is connected with main shaft connection handle.
The number of the universal joint is 4, and intermediate universal joint fixed plate respectively separates 4 universal joints two-by-two.
The universal joint at both ends is set to the center of hollow cylinder arc knife bar both ends of the surface.
The boring cutter blade is clip type blade, and point of a knife is acute angle.
The connector is cylindrical bar.
Compared with prior art, advantages of the present invention is as follows:
Boring cutter of the present invention can well solve the problem of 180 ° of elbow inner holes can not be processed；
Boring cutter of the present invention to workpiece carry out both ends boring, after completing the process, it is ensured that the finish of elbow bore area and
The cylindricity of inner hole；
Boring cutter structure of the present invention is simple, maintenance convenient for safeguarding, and blade is clip type blade, can pass through replacement after blade abrasion
Blade continues to use, and extends cutter life；
The tip radius of boring cutter of the present invention is adjustable, so that the scope of application is more extensive；
The present invention improves processing efficiency, and the workpiece accuracy processed is high, reduces difficulty of processing coefficient, can be used general
Operative employee complete；
Boring cutter of the present invention reduces the labor intensity of worker, and safety coefficient increases；
Boring cutter boring cutter of the present invention is replaceable, improves the service life of boring cutter entirety.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the threedimensional model schematic diagram of structure of the invention；
Fig. 3 is the installation site figure of structure of the invention and workpiece；
Fig. 4 is bent tool actual processing figure provided by the invention；
Fig. 5 is the workpiece of bent tool provided by the invention after processing is completed；
Appended drawing reference: 1, boring cutter blade, 2, universal joint fixed plate, 3, universal joint, 4, main shaft connection handle.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The present embodiment provides a kind of boring cutters (referring to Fig. 1 and Fig. 2) of elbow inner hole within 180 ° of processing, including hollow cylinder
Arc knife bar is in 95 ° of circular shape；
The centre and both ends of the hollow cylinder arc knife bar are provided with universal joint fixed plate 2, intermediate universal joint fixed plate 2
On be provided with through-hole, and 4 universal joints are separated two-by-two and are concatenated and are set in hollow cylinder arc knife bar, intermediate universal joint
The universal joint of 2 two sides of fixed plate is connected by the connector being set in through-hole, and four universal joints are used to change machine tool chief axis
Direction of rotation and cutting direction, the universal joints of two sides stretch out knife bar both ends of the surface, and position is set to and end face is concentric locates, in this way can be with
The rotation angle of fixed both ends universal joint, one end universal joint are provided with telescopic boring cutter blade 1 by knife rest, and the other end is universal
Section is connected with main shaft connection handle 4.
Above-mentioned boring cutter blade 1 is clip type blade, and point of a knife is acute angle.
Above-mentioned universal joint fixed plate 2 is circle, and centre is provided with hole, and fixed plate is used to the rotation of fixed intermediate two universal joints
Gyration, better power transmission power；
Above-mentioned hollow cylinder arc knife bar is made by hard material.
Main shaft connection handle 4 is with reeded cylindrical body, and it is concentric with end face to be set to knife bar endface, after connecting with main shaft
It follows main shaft to rotate, knife rest is transmitted to by universal joint and drives 1- boring cutter blade rotary cutting.
The course of work of the invention:
The main shaft connection handle 4 of boring cutter of the present invention is connect with machine tool chief axis, and platen is tailored version, round rotatably work
Platform.Placing clamp clamping of workpieces, referring to Fig. 3, it is curved can to prepare dedicated groove placement in advance when clamping workpiece for the semicircle in left side
Head, it is using cover board that workpiece is fixed on the table above.
Steps are as follows for the course of work (referring to fig. 4):
1, guarantee that the external form radius of 95 ° of cutters is equal with the external form radius of elbow workpiece within 180 °, while guaranteeing tool work piece
With one heart,
2, knife bar is mounted on lathe, main shaft connection handle is connect with machine tool chief axis；
3,1- boring cutter blade, the size of adjustment 1- boring cutter blade to inner hole to be processed are installed；
4, workpiece is put on circular turned workbench, centering workpiece, guarantees that workpiece and workbench are concentric, is pressed from both sides using pressing plate etc.
Tool is fixed；
5, the position of cutter and circular turned workbench is adjusted, guarantees that cutter and circular turned workbench are concentric；
6, adjustment cutter rotate the disc to be formed and end face of elbow inner hole it is concentric；
7, parameter is set, and revolving speed is 100 revs/min, and the amount of feeding is 0.13 millimeter/turn, and cutting depth is unilateral 1 millimeter, is started
Process inner hole；
8, the angle for observing circular turned worktable rotary, the feed-disabling when rotating 95 °, withdrawing；
9, elbow workpiece is turned around；
10, step 4, step 5, step 6 are carried out again, complete centering；
11, using parameter identical with step 7, start to process；
12, the angle for observing circular turned worktable rotary stops being given when rotating 95 °, withdrawing；
13, it completes the process.
Referring to Fig. 5, Fig. 5 is the workpiece finally bored using boring cutter of the present invention.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (5)
1. the boring cutter of elbow inner hole within a kind of 180 ° of processing, it is characterised in that: be in 95 ° including hollow cylinder arc knife bar
Circular shape；The centre and both ends of the hollow cylinder arc knife bar are respectively arranged with universal joint fixed plate (2), intermediate
It is provided with through-hole in universal joint fixed plate (2), several universal joints (3) being connected in series are provided in hollow cylinder arc knife bar,
Several universal joints being connected in series (3) are separated and are symmetrical arranged by intermediate universal joint fixed plate (2), and intermediate universal joint is solid
The universal joint of fixed board (2) two sides is connected by the connector being set in through-hole, and the universal joint at both ends stretches out in hollow cylinder arc
Shape knife bar both ends, one end are provided with telescopic boring cutter blade (1) by knife rest, and the other end is connected with main shaft connection handle (4).
2. the boring cutter of elbow inner hole within a kind of 180 ° of processing according to claim 1, it is characterised in that: described is universal
The number for saving (3) is 4, and intermediate universal joint fixed plate respectively separates 4 universal joints two-by-two.
3. the boring cutter of elbow inner hole within a kind of 180 ° of processing according to claim 1 or 2, it is characterised in that: both ends
Universal joint is set to the center of hollow cylinder arc knife bar both ends of the surface.
4. the boring cutter of elbow inner hole within a kind of 180 ° of processing according to claim 3, it is characterised in that: the boring cutter
Blade (1) is clip type blade, and point of a knife is acute angle.
5. the boring cutter of elbow inner hole within a kind of 180 ° of processing according to claim 4, it is characterised in that: the connection
Part is cylindrical bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910215731.0A CN109834306A (en) | 2019-03-21 | 2019-03-21 | A kind of boring cutter for processing elbow inner hole within 180 ° |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910215731.0A CN109834306A (en) | 2019-03-21 | 2019-03-21 | A kind of boring cutter for processing elbow inner hole within 180 ° |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109834306A true CN109834306A (en) | 2019-06-04 |
Family
ID=66885998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910215731.0A Pending CN109834306A (en) | 2019-03-21 | 2019-03-21 | A kind of boring cutter for processing elbow inner hole within 180 ° |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109834306A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110293241A (en) * | 2019-07-05 | 2019-10-01 | 西安工业大学 | A kind of elbow system processed within 180 ° |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4209166A (en) * | 1979-05-25 | 1980-06-24 | Derouen Adrian J | Universal jack and work positioning mechanism |
| SU1073007A1 (en) * | 1981-10-23 | 1984-02-15 | Кубанский Ордена Трудового Красного Знамени Сельскохозяйственный Институт | Boring head for machining holes with curvilinear axis |
| JPS59192405A (en) * | 1983-04-12 | 1984-10-31 | Toshiba Corp | Internal boring device for bent pipe |
| FR2634260A1 (en) * | 1988-07-15 | 1990-01-19 | Bristol Myers Co | ELBOW DRIVE DEVICE |
| CN201338113Y (en) * | 2009-01-15 | 2009-11-04 | 江苏标新集团有限公司 | Heavy caliber pipeline 90-degrees elbow boring device |
| CN101850431A (en) * | 2010-04-09 | 2010-10-06 | 四川三洲川化机核能设备制造有限公司 | Method and device for machining inner bending holes of main nuclear power pipeline bend on horizontal boring machine |
| CN102266960A (en) * | 2010-06-03 | 2011-12-07 | 上海重型机器厂有限公司 | Device and method for machining inner hole of bent pipe of nuclear power main pipeline |
| CN103862225A (en) * | 2012-12-14 | 2014-06-18 | 上海重型机器厂有限公司 | Processing method for inner hole of elbow of nuclear power main pipeline |
| CN206230041U (en) * | 2016-12-08 | 2017-06-09 | 安庆中船柴油机有限公司 | A kind of universal joint boring row |
-
2019
- 2019-03-21 CN CN201910215731.0A patent/CN109834306A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4209166A (en) * | 1979-05-25 | 1980-06-24 | Derouen Adrian J | Universal jack and work positioning mechanism |
| SU1073007A1 (en) * | 1981-10-23 | 1984-02-15 | Кубанский Ордена Трудового Красного Знамени Сельскохозяйственный Институт | Boring head for machining holes with curvilinear axis |
| JPS59192405A (en) * | 1983-04-12 | 1984-10-31 | Toshiba Corp | Internal boring device for bent pipe |
| FR2634260A1 (en) * | 1988-07-15 | 1990-01-19 | Bristol Myers Co | ELBOW DRIVE DEVICE |
| CN201338113Y (en) * | 2009-01-15 | 2009-11-04 | 江苏标新集团有限公司 | Heavy caliber pipeline 90-degrees elbow boring device |
| CN101850431A (en) * | 2010-04-09 | 2010-10-06 | 四川三洲川化机核能设备制造有限公司 | Method and device for machining inner bending holes of main nuclear power pipeline bend on horizontal boring machine |
| CN102266960A (en) * | 2010-06-03 | 2011-12-07 | 上海重型机器厂有限公司 | Device and method for machining inner hole of bent pipe of nuclear power main pipeline |
| CN103862225A (en) * | 2012-12-14 | 2014-06-18 | 上海重型机器厂有限公司 | Processing method for inner hole of elbow of nuclear power main pipeline |
| CN206230041U (en) * | 2016-12-08 | 2017-06-09 | 安庆中船柴油机有限公司 | A kind of universal joint boring row |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110293241A (en) * | 2019-07-05 | 2019-10-01 | 西安工业大学 | A kind of elbow system processed within 180 ° |
| CN110293241B (en) * | 2019-07-05 | 2024-03-29 | 西安工业大学 | Elbow system for processing within 180 degrees |
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Application publication date: 20190604 |
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| RJ01 | Rejection of invention patent application after publication |