CN103071963A - Non-through flat hole reuse and repair method - Google Patents
Non-through flat hole reuse and repair method Download PDFInfo
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- CN103071963A CN103071963A CN 201310036517 CN201310036517A CN103071963A CN 103071963 A CN103071963 A CN 103071963A CN 201310036517 CN201310036517 CN 201310036517 CN 201310036517 A CN201310036517 A CN 201310036517A CN 103071963 A CN103071963 A CN 103071963A
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Abstract
The invention relates to a non-through flat hole repair method which comprises the following steps that (1) an original flat hole of a connecting piece is processed by a lathe, truning is performed in accordance with the hole diameter of the original flat hole, so as to remove the flat shoulder part of the flat hole, and then the flat hole is further processed by the lathe, so that the bottom of the flat hole extends downward for a length L1; (2) the center of the bottom of the flat hole is drilled until the bottom is drilled through, and a through hole is formed in the bottom; (3) a hot jacket is processed, the hot jacket is in a shape of a cylinder, the diameter of the hot jacket accords with the inner diameter after truning in the step (1), the length of the hot jacket is the same as the hole depth after truning in the step (1), grooves are symmetrically and axially formed in both sides of the hot jacket, and the hot jacket is put in the flat hole; (4) pin hole processing is performed on the connecting piece in which the hot jacket is put, a pin or a taper pin is driven into a pin hole, and the root of the pin or the taper pin is sunk into the top surface of the pin hole for a depth L2; (5) welding is performed, full welding is performed on the space of the depth L2, and build-up welding is performed on the space of the length L1 in the step (1); and (6) milling of a connecting rib is performed on the hot jacket, so as to mill to be flat to a pre-matched depth along the bottom of the width of the grooves.
Description
Technical field
The present invention relates to a kind of machining process, be specifically related to a kind of processing method with the impaired rear recovery recycling of flat hole driving member.
Background technology
Radially ways to restrain of a kind of flat cellular type is arranged in mechanical transmissioning piece, such as flat cellular type universal-joint spindle connecting portion, referring to Fig. 1, Fig. 2, according to the part measured data, from the aspects such as evaluation of impact, fracture examination and the crackle of mechanical analysis, torsional oscillation the reason of homalocephalus fracture is analyzed.Think that torsional oscillation, fatigue crack and material are to cause universal-joint spindle homalocephalus major cause of failure.
By foregoing description as seen, the phenomenons such as damage or fracture can occur in flat head.Another problem that causes thus is the damage that flat-nosed damage must cause flat hole, because it is to cooperate and the stressed relation of moment of torsion, and referring to the A section among Fig. 3, obvious symmetrical stress surface damage, the torsional oscillation that cooperating lost efficacy causes instantaneous starting impacts.Flat head is to expose part, so metalworking is comparatively convenient again, can process at any time replacing, and flat-nosed structure is also comparatively simple.It is comparatively complicated that but flat pore structure just seems, it is the indent part, and has the angle of completing a business transaction of circular arc and straight line, therefore difficulty of processing is also higher, is processing and the original paper reparation in non-logical flat hole especially.According to present field case new system or newly purchase attaching parts integral replacing with flat hole normally, the drawback of bringing is exactly the increase of production cost.
Summary of the invention
Non-logical flat hole the object of the present invention is to provide a kind of restorative procedure of non-logical flat hole, so that can be repaired and normally re-use repeatedly after impaired.
For achieving the above object, technical scheme of the present invention is:
A kind of restorative procedure of non-logical flat hole comprises the steps:
1) the original flat pass of Vehicle Processing connector by aperture, original flat hole car circle, is removed the flat shoulder portion in flat hole, and further dark this flat hole of car, makes bottom, flat hole again to downward-extension one length L 1;
2) flat hole bottom center drilling is until connect this bottom, and a through hole is formed on the bottom, the spacing that this through-hole diameter is climbed less than two ears of connector bottom outside face;
3) hot jacket processing, hot jacket is cylindrical, its diameter and step 1) internal diameter of Che Yuanhou is consistent, its length and step 1) hole depth of Che Yuanhou is identical; The hot jacket bilateral symmetry is offered groove vertically, and groove depth is not more than between 1/3rd, two groove bottom lands of hot jacket diameter and connects the muscle width less than step 2) in through-hole diameter, groove width cooperates with the requirement of flat head gap; Hot jacket is inserted in the flat hole behind the Vehicle Processing connector car circle;
4) pin-and-hole processing, the processing of the enterprising marketing of the connector after inserting hot jacket hole, pin-and-hole is positioned at hot jacket hot jacket and connector intersection, is symmetrical arranged two pin-and-holes; Squeeze into pin or taper pin in pin-and-hole, pin or taper pin length are greater than hot jacket length 2/3rds, and its root is absorbed in pin-and-hole end face one degree of depth L2, and L2 is 2-3mm;
The degree of depth L2 space of 5) welding, full weld step 4) retaining, and the welding protuberance polished processing; Utilize the deep trouth space of hot jacket, stretch into bottom land with welding rod, built-up welding step 1) in bottom, the flat hole of dark car again to the space of downward-extension one length L 1, this place built-up welding is filled up the L1 space and get final product, welding slag is from step 1 in the welding process) the bottom through-hole discharge of reservation;
6) mill pin and connect muscle, hot jacket is connected muscle mill pin, crossheading is wide reveals all the details that to mill pin flat to its pre-mated degree of depth.
Further, step 4) in the pin-and-hole processing, pin-and-hole is distributed on hot jacket and the connector half and half.
Described pin-and-hole is straight hinge or cone hinge pin hole.
The invention has the beneficial effects as follows:
Restorative procedure of the present invention is by hot jacket processing and application, so that non-logical flat hole can be repaired and normally re-use after impaired repeatedly.
Description of drawings
Fig. 1 is the stereogram of flat cellular type universal-joint spindle connecting portion.
Fig. 2 is the cutaway view of flat cellular type universal-joint spindle connecting portion.
Fig. 3 is the schematic diagram of the flat cellular type universal-joint spindle connecting portion of flat hole damaged.
Fig. 4～Figure 12 is embodiment of the invention repair process schematic diagram.
The specific embodiment
The present invention will be further described below in conjunction with embodiment and accompanying drawing.
Referring to Fig. 4～Figure 12, the present embodiment comprises the steps: take the reparation of flat cellular type universal-joint spindle connecting portion as example
1) Vehicle Processing connector 1 original flat pass by original flat hole 11 aperture car circles, is removed the flat shoulder portion 12 in flat hole, referring to Fig. 4, and further dark this flat hole 11 of car, make 11 bottoms, flat hole again to downward-extension one length L 1, referring to Fig. 5;
2) flat hole 11 bottom center drillings are until connect this bottom, and a through hole 13 is formed on the bottom, and these through hole 13 diameters are climbed 14 spacing less than two ears of connector 1 bottom outside face, do not affect the force structure that ear is climbed, referring to Fig. 6;
3) hot jacket 2 processing, hot jacket 2 is cylindrical, its diameter and step 1) flat hole 11 internal diameters of Che Yuanhou are consistent, its length and step 1) the flat hole hole depth of Che Yuanhou is identical; Hot jacket 2 bilateral symmetry are offered groove 21 vertically, and groove depth is not more than between 1/3rd, two groove 21 bottom lands of hot jacket diameter and connects muscle 22 width less than step 2) in through hole 13 diameters, groove width cooperates with the requirement of flat head gap, referring to Fig. 7; Hot jacket 2 is inserted in the flat hole 11 behind the connector 1 car circle, referring to Fig. 8;
4) pin-and-hole processing, the connector 1 enterprising marketing hole processing after inserting hot jacket 2, pin-and-hole 3,3 ' is positioned at hot jacket 2 and connector 1 intersection, is symmetrical arranged; In the present embodiment, the pin-and-hole 3,3 ' of processing is distributed on hot jacket 2 and the connector 1 each half; Referring to Fig. 9; Squeeze into pin or taper pin 4,4 ' in pin-and-hole 3,3 ', pin or taper pin 4,4 ' length are greater than hot jacket 2 length 2/3rds, and its root is absorbed in pin-and-hole 3,3 ' end face, one degree of depth L2, and L2 is 2-3mm, referring to Figure 10;
The degree of depth L2 space of 5) welding, full weld step 4) retaining, and the welding protuberance polished processing, in case being to mill pin, the purpose of full weld connects muscle, connect muscle both sides fan-shaped section and have plasticity or strain, pind down the generation of distortion by full weld; Utilize the deep trouth space of hot jacket 2, stretch into bottom land with welding rod, built-up welding step 1) bottom, the flat hole of dark car is again to the space of downward-extension one length L 1 in, this place's built-up welding is filled up the L1 space and is got final product, but exceed the position grinding process, welding manner is for vertically putting, and welding slag is discharged step 1 from through hole 13 in the welding process) in reserve the welding slag circulation road that through hole 13 is done for the built-up welding of this step exactly; The enforcement of this step has directly limited the radial force revolution of hot jacket and connector endoporus, referring to Figure 11;
6) mill pin and connect muscle, hot jacket 2 is connected muscle mill pin, crossheading is wide reveals all the details that to mill pin flat to its pre-mated degree of depth, referring to Figure 12.
Claims (3)
1. the restorative procedure in a non-logical flat hole comprises the steps:
1) the original flat pass of Vehicle Processing connector by aperture, original flat hole car circle, is removed the flat shoulder portion in flat hole, and further dark this flat hole of car, makes bottom, flat hole again to downward-extension one length L 1;
2) flat hole bottom center drilling is until connect this bottom, and a through hole is formed on the bottom, the spacing that this through-hole diameter is climbed less than two ears of connector bottom outside face;
3) hot jacket processing, hot jacket is cylindrical, its diameter and step 1) internal diameter of Che Yuanhou is consistent, its length and step 1) hole depth of Che Yuanhou is identical; The hot jacket bilateral symmetry is offered groove vertically, and groove depth is not more than between 1/3rd, two groove bottom lands of hot jacket diameter and connects the muscle width less than step 2) in through-hole diameter, groove width cooperates with the requirement of flat head gap; Hot jacket is inserted in the flat hole behind the Vehicle Processing connector car circle;
4) pin-and-hole processing, the processing of the enterprising marketing of the connector after inserting hot jacket hole, pin-and-hole is positioned at hot jacket hot jacket and connector intersection, is symmetrical arranged two pin-and-holes; Squeeze into pin or taper pin in pin-and-hole, pin or taper pin length are greater than hot jacket length 2/3rds, and its root is absorbed in pin-and-hole end face one degree of depth L2, and L2 is 2-3mm;
The degree of depth L2 space of 5) welding, full weld step 4) retaining, and the welding protuberance polished processing; Utilize the deep trouth space of hot jacket, stretch into bottom land with welding rod, built-up welding step 1) in bottom, the flat hole of dark car again to the space of downward-extension one length L 1, this place built-up welding is filled up the L1 space and get final product, welding slag is from step 1 in the welding process) the bottom through-hole discharge of reservation;
6) mill pin and connect muscle, hot jacket is connected muscle mill pin, crossheading is wide reveals all the details that to mill pin flat to its pre-mated degree of depth.
2. the restorative procedure in non-logical flat hole as claimed in claim 1 is characterized in that step 4) in the pin-and-hole processing, pin-and-hole is distributed on hot jacket and the connector half and half.
3. the restorative procedure in non-logical flat hole as claimed in claim 1 or 2 is characterized in that, described pin-and-hole is straight hinge or cone hinge pin hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310036517 CN103071963A (en) | 2013-01-30 | 2013-01-30 | Non-through flat hole reuse and repair method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310036517 CN103071963A (en) | 2013-01-30 | 2013-01-30 | Non-through flat hole reuse and repair method |
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| CN103071963A true CN103071963A (en) | 2013-05-01 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104786003A (en) * | 2015-05-25 | 2015-07-22 | 南车戚墅堰机车有限公司 | Method for repairing main bearing hole of body |
| CN105345387A (en) * | 2015-11-26 | 2016-02-24 | 沈阳黎明航空发动机(集团)有限责任公司 | Repair method for oil leakage of process pin hole in nozzle installation seat of auxiliary oil path of engine fuel tube |
| CN110962378A (en) * | 2018-09-28 | 2020-04-07 | 西门子歌美飒可再生能源公司 | Method for repairing a root of a rotor blade of a wind turbine |
| CN112589372A (en) * | 2020-11-27 | 2021-04-02 | 中钢集团邢台机械轧辊有限公司 | Method for repairing pin hole of supporting roller |
-
2013
- 2013-01-30 CN CN 201310036517 patent/CN103071963A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104786003A (en) * | 2015-05-25 | 2015-07-22 | 南车戚墅堰机车有限公司 | Method for repairing main bearing hole of body |
| CN105345387A (en) * | 2015-11-26 | 2016-02-24 | 沈阳黎明航空发动机(集团)有限责任公司 | Repair method for oil leakage of process pin hole in nozzle installation seat of auxiliary oil path of engine fuel tube |
| CN110962378A (en) * | 2018-09-28 | 2020-04-07 | 西门子歌美飒可再生能源公司 | Method for repairing a root of a rotor blade of a wind turbine |
| CN112589372A (en) * | 2020-11-27 | 2021-04-02 | 中钢集团邢台机械轧辊有限公司 | Method for repairing pin hole of supporting roller |
| CN112589372B (en) * | 2020-11-27 | 2022-04-01 | 中钢集团邢台机械轧辊有限公司 | Method for repairing pin hole of supporting roller |
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Application publication date: 20130501 |