CN105033583A - Forming process method of welding shaft - Google Patents
Forming process method of welding shaft Download PDFInfo
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- CN105033583A CN105033583A CN201510449613.8A CN201510449613A CN105033583A CN 105033583 A CN105033583 A CN 105033583A CN 201510449613 A CN201510449613 A CN 201510449613A CN 105033583 A CN105033583 A CN 105033583A
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- carbon steel
- welding
- described carbon
- stainless steel
- steel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention provides a forming process method of a welding shaft. The forming process method of the welding shaft comprises following steps: firstly, utilizing a sawing machine to cut off two segments of carbon steel and stainless steel; utilizing a straightener to correct straightness of carbon steel; using a grinding machine to polish the surfaces of carbon steel and stainless steel; then, using a measuring truck to process evenness of the end surfaces of carbon steel and stainless steel; utilizing an ultrasonic washing unit to surfaces and end surfaces of carbon steel and stainless steel; adopting a friction welding machine to control carbon steel and stainless steel to rotate at high speed and then stops instantly; performing fusion welding to carbon steel and stainless steel by point touch; machining the preliminarily-formed welding shaft by a series of steps; and detecting bending resistance and torsion resistance of the formed welding shaft. The forming process method of the welding shaft has following beneficial effects: the forming process method is operated at ease; the formed welding shaft has high precision and fine coaxiality and abrasion resistance; when the welding shaft is utilized as a water pump, fine conduction performance is realized; and the welding shaft does not rust.
Description
Technical field
The present invention relates to a kind of process, particularly a kind of moulding technique welding axle.
Background technology
Water pump is conveying liquid or the machinery making fluid pressurization.It sends the mechanical energy of prime mover or other external energies to liquid, liquid energy is increased, be mainly used to conveying liquid and comprise water, oil, acid & alkali liquid, emulsion, suspended emulsion and liquid metal etc., also can carry liquid, admixture of gas and the liquid containing suspended solids.
In water pump, topmost part is pump shaft, and pump shaft in use, a shaft part is wherein had to be enter in water, another shaft part is the rotor as motor, if pump shaft bearing all adopts stainless steel material, although solve problem of rustiness like this, because stainless electric conductivity is not good, and cost is also higher, be not suitable for generally using; If pump shaft bearing all adopts carbon steel material, although solve electric conductivity problem like this, and also reduce cost, but the shaft part be in water gets rusty easily, so be badly in need of a kind of processing technology of pump shaft can produced existing good electric conductivity and can not get rusty again in the equipment of reality.
In view of above-mentioned defect, creator of the present invention obtains the present invention finally through long research and practice.
Summary of the invention
The object of the invention is to, a kind of moulding technique welding axle is provided, in order to overcome above-mentioned technological deficiency.
For achieving the above object, the technical solution used in the present invention is, provides a kind of moulding technique welding axle, and the moulding technique step of described welding axle is as follows:
Step 1: the carbon steel and the stainless steel that intercept corresponding length needed for two sections with sawing machine;
Step 2: straightness calibration is carried out to described carbon steel with straightener;
Step 3: carry out grinding process to described carbon steel and described stainless surface with grinding machine, makes described carbon steel and described stainless diameter and tolerance in claimed range;
Step 4: carry out flatness process to described carbon steel and described stainless end face with measuring truck, guarantees that the described carbon steel after processing and described stainless length and tolerance are all in claimed range;
Step 5: clean described carbon steel and described stainless surface and end face with supersonic wave cleaning machine, makes its surface or end face not containing oil stain and iron filings;
Step 6: adopt friction-welding machine to control described carbon steel and described stainless steel High Rotation Speed, then stop instantaneously, described carbon steel and described stainless steel point are touched simultaneously, produce high temperature, melt described carbon steel and described stainless contact surface, both are welded together, form welding axle;
Step 7: welding axle shaping for first tool is carried out a series of processing process, makes the described welding axle after processing meet the technological requirement of product;
Step 8: finally the described welding axle of sizing is carried out bending resistance and antitorque detection, and the qualification rate of counting yield.
The moulding technique of welding axle of the present invention is simple to operate, but shaping welding axle precision is high, and axiality is good, and wearability is also better, when being used as pump shaft by described welding axle, also achieve good electric conductivity, meet the effect that can not get rusty simultaneously.
Preferably, when described welding procedure, described carbon steel and described stainless rotating speed all reach 3000 revs/min.
Preferably, the horizontal departure of described carbon steel when carrying out alignment and detecting is 0.1mm.
Preferably, the diameter of described carbon steel after polishing is 17.5mm, and its upper and lower tolerance is respectively 0mm and-0.02mm; Described stainless steel diameter is 18mm, and its upper and lower tolerance is respectively-0.05mm and-0.10mm.
Preferably, the length of described carbon steel after flush end is 199.3mm, and its symmetric tolerance is 0.2mm; Described stainless steel length after flush end is 60mm, and its symmetric tolerance is 0.2mm.
Preferably, described carbon steel section length is after welding 194.8mm, and symmetric tolerance is 1mm, and the length of described stainless steel section is 58mm, and symmetric tolerance is 1mm, and the deviation of axiality between described stainless steel and described carbon steel is 0.4mm.
Beneficial effect of the present invention is compared with the prior art: the moulding technique of welding axle of the present invention is simple to operate, but shaping welding axle precision is high, axiality is good, and wearability is also better, when described welding axle is used as pump shaft, also achieve good electric conductivity, meet the effect that can not get rusty simultaneously.
Accompanying drawing explanation
Fig. 1 is the flow process chart that the present invention welds the moulding technique of axle.
Detailed description of the invention
Below in conjunction with accompanying drawing, to above-mentioned being described in more detail with other technical characteristic and advantage of the present invention.
Refer to shown in Fig. 1, it welds the flow process chart of the moulding technique of axle for the present invention;
Step one: blanking: the carbon steel and the stainless steel that intercept corresponding length needed for two sections with sawing machine.
Adopt sawing machine to intercept carbon steel and the stainless steel of certain length respectively in punch press workshop, wherein, carbon steel adopts 45#, and stainless steel adopts 303; The length of described carbon steel is 201mm, its symmetric tolerance is 0.25mm, described stainless length is 61.5mm, its symmetric tolerance is 0.25mm, because described carbon steel and described stainless steel can reduce its length in follow-up process, so in blanking operation, length and the described stainless length of described carbon steel should be longer than last sizing length.
Step 2: alignment: straightness calibration is carried out to described carbon steel with straightener.
Alignment is carried out by straightener at Grinding machine shops, during due to blanking, the length of described carbon steel is longer, described stainless length is shorter, and make in cutting deformation, the deformation quantity of described carbon steel is greater than described stainless deformation quantity, so only alignment process need be carried out to carbon steel, ensure that described carbon steel and the axiality of described stainless steel when welding, wherein, is 0.1mm for the horizontal departure in the alignment detection of described carbon steel.
Step 3: pre-grinding: carry out grinding process to described carbon steel and described stainless surface with grinding machine, makes described carbon steel and described stainless diameter and tolerance in claimed range.
Coreless grinding machine M1080 is adopted to polish to described carbon steel and described stainless steel at Grinding machine shops, first described carbon steel and described stainless steel are arranged on grinding machine respectively, then open grinding machine, slowly described carbon steel and described stainless steel are shifted near grinding stone, carry out grinding process, make the carbon steel diameter after polishing be 17.5mm, its upper and lower tolerance is respectively 0mm and-0.02mm; Stainless steel diameter is 18mm, and its upper and lower tolerance is respectively-0.05mm and-0.10mm, and is, to needing a point twice polishing during described stainless steel polishing, to make it reach dimensional requirement.
Step 4: flush end: carry out flatness process to described carbon steel and described stainless end face with measuring truck, guarantees that the described carbon steel after processing and described stainless length and tolerance are all in claimed range.
Measuring truck is adopted to carry out end face processing to the described carbon steel after polishing and described stainless steel at instrument shop, due in follow-up manufacturing procedure, described carbon steel and described stainless steel need a butt-joint to connect, so will guarantee that described carbon steel and described stainless end face keep smooth, the axiality between the described carbon steel after welding and described stainless steel can be improved like this, but also to ensure that the described carbon steel length after flush end is 199.3mm, its symmetric tolerance is 0.2mm; Described stainless steel length after flush end is 60mm, and its symmetric tolerance is 0.2mm.
Step 5: cleaning: clean described carbon steel and described stainless surface and end face with supersonic wave cleaning machine, makes its surface or end face not contain oil stain and iron filings.
Supersonic wave cleaning machine is adopted to clean described carbon steel and described stainless steel, ensure that described carbon steel and described stainless surface and end face clean, it can not speckle with oil stain, iron filings and burr, because described carbon steel and described stainless steel are when welding, if containing oil stain or iron filings on described carbon steel or described stainless end face, the effect of welding can be affected, and also can affect the axiality of described welding axle simultaneously, make described welding axle become waste product.
Step 6: welding: adopt friction-welding machine to control described carbon steel and described stainless steel High Rotation Speed, then stop instantaneously, described carbon steel and described stainless steel point are touched simultaneously, produce high temperature, melt described carbon steel and described stainless contact surface, both are welded together, form welding axle.
Friction-welding machine is adopted to carry out soldering to described carbon steel and described stainless steel at NC lathing, first first the described stainless steel after cleaning and described carbon steel are individually fixed in the both sides of described friction-welding machine, then described friction-welding machine is opened, the rotating speed of described stainless steel and described carbon steel is made all to reach 3000 revs/min, then movement is provided with the side of described carbon steel, described stainless steel and described carbon steel are put instantaneously touch, when point touches, described friction-welding machine remains static, because described friction-welding machine is from the rotating speed of 3000 revs/min moment bust to zero, the contact surface that described stainless steel and described carbon steel are collided produces high temperature instantaneously, and the high-temperature temperature value produced is higher than the fusing point of described stainless steel and described carbon steel, the contact jaw of stainless steel described in instant melting and described carbon steel, described stainless steel and described carbon steel are welded together, also make described stainless steel and described carbon steel be welded into an entirety simultaneously, and adopt such welding procedure, ensure that precision when welding of described carbon steel and described stainless steel and axiality, simultaneously, because the time of welding is shorter, finally weld together from described carbon steel and described stainless being installed to, time is greatly about about 20s, in the so short operating time, this welding procedure also assures that described carbon steel and described stainless welding effect and welding precision, wherein, the length of the described carbon steel section after welding is 194.8mm, symmetric tolerance is 1mm, the length of described stainless steel section is 58mm, symmetric tolerance is 1mm, and the deviation of axiality between described stainless steel and described carbon steel is 0.4mm,
Step 7: fine finishining: welding axle shaping for first tool is carried out a series of processing process, makes the described welding axle after processing meet the technological requirement of product.
A series of processing process is carried out for the welding axle after welding fabrication, as car solder side, alignment, flush end, centering, face work, milling limit, deburring, fine grinding, punching, chamfering, reaming, tapping, hard waste, rolled thread, Quan Jian, plug mill, fine grinding, cleaning, picks the manufacturing procedures such as packing; And above-mentioned operation is all needed to be processed by the particular device in particular plant, meanwhile, each procedure all needs to ensure its technological requirement and craft precision, and shaping welding axle yield rate so just can be made to improve.
Step 8: correct: the described welding axle of finally shaping is carried out bending resistance and antitorque detection, and the qualification rate of counting yield.
Through above-mentioned a series of processing technology, substantially the processing of described welding axle is completed, thereafter the detection described welding axle after shaping being carried out to many kinds of parameters is needed, wherein topmost two kinds are detected as: bending resistance detects and antitorque detection, described bending resistance detects and is mainly divided into two kinds of modes: one is fixed carbon steel section described in described welding axle, and fixing node is in the side of pad by described carbon steel, and then press-bending process is carried out to described stainless steel section, see and whether meet bending resistance requirement, another kind is fixed the forging of stainless steel described in described welding axle, and fixing node leans on described stainless side at pad, and then press-bending process is carried out to described carbon steel, see and whether meet bending resistance requirement, described antitorque detection is by all fixing for the two ends of described welding axle, and reverse wherein one end, the other end reverses in the opposite direction, slowly strengthen torsional moment simultaneously, see and whether reach antitorque requirement, through above-mentioned two kinds of detections, if all reach requirement, illustrate that this welding axle is qualified products, otherwise, be substandard product.
The moulding technique of welding axle of the present invention is simple to operate, but shaping welding axle precision is high, and axiality is good, and wearability is also better, when being used as pump shaft by described welding axle, also achieve good electric conductivity, meet the effect that can not get rusty simultaneously.
The foregoing is only preferred embodiment of the present invention, is only illustrative for the purpose of the present invention, and nonrestrictive.Those skilled in the art is understood, and can carry out many changes in the spirit and scope that the claims in the present invention limit to it, amendment, even equivalence, but all will fall within the scope of protection of the present invention.
Claims (6)
1. weld a moulding technique for axle, it is characterized in that, the moulding technique step of described welding axle is as follows:
Step 1: the carbon steel and the stainless steel that intercept corresponding length needed for two sections with sawing machine;
Step 2: straightness calibration is carried out to described carbon steel with straightener;
Step 3: carry out grinding process to described carbon steel and described stainless surface with grinding machine, makes described carbon steel and described stainless diameter and tolerance in claimed range;
Step 4: carry out flatness process to described carbon steel and described stainless end face with measuring truck, guarantees that the described carbon steel after processing and described stainless length and tolerance are all in claimed range;
Step 5: clean described carbon steel and described stainless surface and end face with supersonic wave cleaning machine, makes its surface or end face not containing oil stain and iron filings;
Step 6: adopt friction-welding machine to control described carbon steel and described stainless steel High Rotation Speed, then stop instantaneously, described carbon steel and described stainless steel point are touched simultaneously, produce high temperature, melt described carbon steel and described stainless contact surface, both are welded together, form welding axle;
Step 7: welding axle shaping for first tool is carried out a series of processing process, makes the described welding axle after processing meet the technological requirement of product;
Step 8: finally the described welding axle of sizing is carried out bending resistance and antitorque detection, and the qualification rate of counting yield.
2. the moulding technique of welding axle according to claim 1, is characterized in that, when described welding procedure, described carbon steel and described stainless rotating speed all reach 3000 revs/min.
3. the moulding technique of welding axle according to claim 2, is characterized in that, the horizontal departure of described carbon steel when carrying out alignment and detecting is 0.1mm.
4. the moulding technique of welding axle according to claim 3, is characterized in that, the diameter of described carbon steel after polishing is 17.5mm, and its upper and lower tolerance is respectively 0mm and-0.02mm; Described stainless steel diameter is 18mm, and its upper and lower tolerance is respectively-0.05mm and-0.10mm.
5. the moulding technique of welding axle according to claim 4, is characterized in that, the length of described carbon steel after flush end is 199.3mm, and its symmetric tolerance is 0.2mm; Described stainless steel length after flush end is 60mm, and its symmetric tolerance is 0.2mm.
6. the moulding technique of welding axle according to claim 5, it is characterized in that, described carbon steel section length is after welding 194.8mm, symmetric tolerance is 1mm, the length of described stainless steel section is 58mm, symmetric tolerance is 1mm, and the deviation of axiality between described stainless steel and described carbon steel is 0.4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510449613.8A CN105033583A (en) | 2015-07-28 | 2015-07-28 | Forming process method of welding shaft |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510449613.8A CN105033583A (en) | 2015-07-28 | 2015-07-28 | Forming process method of welding shaft |
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| CN105033583A true CN105033583A (en) | 2015-11-11 |
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| CN201510449613.8A Pending CN105033583A (en) | 2015-07-28 | 2015-07-28 | Forming process method of welding shaft |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105522351A (en) * | 2016-01-26 | 2016-04-27 | 安徽江淮汽车股份有限公司 | Lengthened shaft and manufacturing method thereof |
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2015
- 2015-07-28 CN CN201510449613.8A patent/CN105033583A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105522351A (en) * | 2016-01-26 | 2016-04-27 | 安徽江淮汽车股份有限公司 | Lengthened shaft and manufacturing method thereof |
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