CN104985407A - Machining method of multi-layer screw shaft - Google Patents
Machining method of multi-layer screw shaft Download PDFInfo
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- CN104985407A CN104985407A CN201510463588.9A CN201510463588A CN104985407A CN 104985407 A CN104985407 A CN 104985407A CN 201510463588 A CN201510463588 A CN 201510463588A CN 104985407 A CN104985407 A CN 104985407A
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- axle
- sheet parts
- tooth
- shaft
- screw shaft
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
Abstract
The invention relates to a machining method of a multi-layer screw shaft. The objective of the invention is to solve technical problems such as complicated techniques, long processing time, high machining difficulty and high machining cost in screw shaft machining in the prior art. According to the machining method, a plurality of quenched thin sheet components with teeth sleeve a shaft, and the quenched thin sheet components and the shaft are superposed together, and a metallic solution fills gaps. The screw shaft includes the thin sheet components and the shaft; the exteriors of the thin sheet components are provided with tooth bottom engaging portions and tooth top engaging portions; shaft holes are formed in the thin sheet components; at least one tooth-shaped protrusion is arranged in each shaft hole; at least one spiral groove is formed at the exterior of the shaft; the number of the tooth-shaped protrusions in the shaft holes of the thin sheet components is identical to the number of the spiral grooves at the exterior of the shaft; the tooth-shaped protrusions in the shaft holes are matched with the spiral grooves; the shaft is compactly and orderly sleeved with the plurality of thin sheet components; the relative positions of the shaft and the plurality of thin sheet components are fixed; and gaps between the shaft and the plurality of thin sheet components are filled with metal. With the machining method adopted, a high-physical performance screw shaft can be manufactured fast with low cost.
Description
Technical field
The present invention relates to a kind of processing method of multi-layer threaded rod axle, particularly relate to be formed by stacking after a kind of toothed sheet parts quenched by multi-disc is inserted in axle and fill the processing method of screw shaft in gap with metallic solution.
Background technology
Helical-lobe compressor, also screw compressor is claimed, comprise screw air compressor and screw rod technique compressor (vinyl chloride compressor etc.), helical-lobe compressor is divided into single screw compressor and double-screw compressor, and helical-lobe compressor utilizes screw shaft shape rotor to compress and pumped (conveying) medium do gyration in cylinder body.
It is high that helical-lobe compressor has reliability, and parts are few, do not have consumable accessory, and thus its running is reliable, and the life-span is long, and general screw machine host header reaches 30 years projected life; Convenient operating maintenance, automaticity is high, and operating personnel, without the need to through long-time professional training, realize unmanned running; Dynamic equilibrium is good, does not have unbalance inertia force, and machine can high speed operation reposefully, realizes foundation-free running; Strong adaptability, has the advantages that to force gas transmission, and volume flow is hardly by the impact of pressure at expulsion, higher efficiency can be kept in the condition range of broadness, when compressor arrangement without any changes, be applicable to various working, thus be easy to sizing batch production; Multi-phase mixed delivering, in fact leaves gap between the rotor flank of tooth, thus ability hydraulic shock, can force feed containing the gas of liquid, containing dusty gas, easy polymerizable gas etc.; Guiding valve Flow-rate adjustment, do not need to return stream, can effectively reduce the advantages such as energy consumption, therefore, helical-lobe compressor is widely used.
The subject matter that current containment helical-lobe compressor develops is that the cost of helical-lobe compressor is high, the flank of tooth due to the screw shaft rotor of screw machine is a space curved surface, the outer contour in its cross section is formed by connecting by the curve of multiple complexity, the curved surface of the flank of tooth of overall screw shaft rotor is formed through spiral stretch by the outline of above-mentioned complex curve, the flank of tooth of screw shaft rotor is the curved surface of a complicated stereoscopic three-dimensional, therefore, turning common in machining and milling device not competent, numerical control turning general at present and milling device can not be processed, need to utilize special cutter to process on expensive special equipment in machining.
The processing of screw shaft rotor, divides from product material, is generally divided into foundry goods machining and forged steel pieces machining.
The screw shaft rotor that foundry goods machining is shaped, necessary first cast form, then with machining center and dedicated tool machining, the screw shaft rotor that the quality such as rigid, wearability of product is cut relative to forged steel pieces is weaker.
During the screw shaft rotor machining that forged steel pieces cuts, must first by steel formed by forging, then with machining center and dedicated tool repeatedly machining, Quenching Treatment and Surface Finishing is carried out again after shaping, therefore, technological requirement is high, technological process is complicated, process velocity is slow, production cost is high.
In actual production, production enterprise often adopts import machining center and import cutter to complete processing, and enterprise is when purchasing high-end import machining center, and be subject to the technology restriction of developed country, meanwhile, import equipment and import cutter substantially increase production cost.
Summary of the invention
The technical problem that the present invention solves is: complex process during in order to solve prior art processing screw shaft, long processing time, difficulty of processing are large, processing cost high-technology defect, a kind of processing method of screw shaft is provided, particularly relate to be formed by stacking after a kind of toothed sheet parts quenched by multi-disc is inserted in axle and fill the processing method of screw shaft in gap with metallic solution, reach low cost, manufacture the technical purpose of high physical property screw shaft fast.
The technical scheme of technical solution problem of the present invention is:
In order to reach technical purpose of the present invention, the processing method of a kind of multi-layer threaded rod axle provided by the invention, described screw shaft comprises sheet parts, axle, there are engaging piece at the bottom of tooth and tooth top engaging piece in the outside of sheet parts, axis hole is had in sheet parts, a profile of tooth is had at least to protrude in axis hole, the outside of axle has a spiral groove at least, the quantity that profile of tooth in sheet parts axis hole is protruded is identical with the quantity of the groove of the external helicoid shape of axle, and cooperatively interact, the cover that the outside of axle is closely orderly has multi-disc sheet parts, relative position between axle and multi-disc sheet parts is fixed, metal is filled with in gap mutual between axle and multi-disc sheet parts, concrete procedure of processing is as follows:
Step 1): sheet metal is machined into sheet parts;
Step 2): Quenching Treatment is carried out to the sheet parts after shaping;
Step 3): the outside then multi-disc sheet parts being enclosed within axle, the tooth in sheet parts axis hole is convex to cooperatively interact with the groove of the external helicoid shape of axle, forms the appearance of spiral oblique crank Z;
Step 4): the relative position then the multi-disc sheet parts of the spiral oblique crank Z after above-mentioned moulding and axle being carried out profile is fixed, and forms screw rod axis body after fixing;
Step 5): the inspection of semifinished product is carried out to described screw rod axis body, the qualified screw rod axis body reaching drawing configuration design requirement enters next step, defective screw rod axis body is checked after entering the mould squeezing shaping of screw shaft shape again, enters next step after qualified;
Step 6): then by the surperficial prefluxing of above-mentioned screw rod axis body;
Step 7): the screw rod axis body then surface being coated with fluxing agent immerses metallic solution;
Step 8): then screw rod axis body is taken out from metallic solution, carry out process for cooling;
Step 9): then carry out product inspection by above-mentioned through cooled screw shaft, qualified finished product screw shaft warehouse-in, defective screw shaft is checked after carrying out the outer contour surface process of screw shaft again, the finished product screw shaft warehouse-in after qualified.
A processing method for the multi-layer threaded rod axle be more preferably, adopts wherein a kind of method of punching press, Linear cut, laser cutting, plasma cut, the cutting of high pressure liquid muscle power, by toothed for sheet metal machine-shaping sheet parts.
A processing method for the multi-layer threaded rod axle be more preferably, wherein a kind of method that quenching adopts high-frequency quenching, mid frequency induction hardening or heat-treatment furnace to quench.
A processing method for the multi-layer threaded rod axle be more preferably, completes screw rod axis body and immerses metallic solution technique in vacuum tank.
A processing method for the multi-layer threaded rod axle be more preferably, the metallic solution that screw rod axis body immerses is selected from the mixing of following any one or two or more arbitrary proportions: plumbous liquid, tin liquor, copper liquid, copper liquid, aluminium liquid.
A kind of processing method of the multi-layer threaded rod axle be more preferably, immerse in metallic solution technical process at vacuum tank inner screw axis body, close vavuum pump, open intake valve fast, make air inlet fast in vacuum tank, by the time, in vacuum tank when pressure and normal-pressure balance, close intake valve and reopen vavuum pump and carry out negative-pressure ward, above-mentioned rapid pressure and fast decompression process hocket once.
A processing method for the multi-layer threaded rod axle be more preferably, have a profile of tooth to protrude in the axis hole of described sheet parts, the groove of axial screw shape is the groove of a spiral profile of tooth.
A processing method for the multi-layer threaded rod axle be more preferably, have multiple profile of tooth to protrude in described sheet parts in axis hole, the groove of axial screw shape is the groove of spiral multiple profile of tooth.
A processing method for the multi-layer threaded rod axle be more preferably, the method that the described relative position multi-disc sheet parts of the spiral oblique crank Z after moulding and axle being carried out profile is fixed is: with axial force clamping sheet parts on axle, and fixing relative position.
A kind of processing method of the multi-layer threaded rod axle be more preferably, the method that the described relative position multi-disc sheet parts of the spiral oblique crank Z after moulding and axle being carried out profile is fixed is: adopt auxiliary clamp, axial grip sheet parts while clamp shaft, and fixing relative position.
Compare with current screw shaft process technology, the Advantageous Effects that the present invention obtains is: by first being quenched by sheet parts, then after forming screw shaft, overall immersion metallic solution, the single individuality of part is little, be convenient to quenching technical, be convenient to produce heavy parts, compared with the overall screw shaft quenching technical of prior art, reduce the volume of glowing furnace, especially the large-scale screw shaft that thickness is large, during prior art quenching, warm-up time is very long just can make whole screw shaft heat to the temperature required for quenching, therefore, sheet parts carries out the technique of quenching, shorten warm-up time, be convenient to control of product quality, reduce the difficulty of quenching technical, it is all flexible metallic material after molten metal solidifies, after stressed extruding, flexible metal can be extruded from the flank of tooth or simply remove, be convenient to control product design precision, do not affect tooth face hardness and flank of tooth physical parameter, in vacuum tank, complete screw rod axis body immerse metallic solution technique, vacuum state can discharge the gas of screw shaft in-vivo metal solution, immerse in metallic solution technical process at vacuum tank inner screw axis body, rapid pressure and fast decompression process hocket, metallic solution is made to produce motion in screw rod axis body, accelerate air in screw rod axis body to discharge, make in screw rod axis body finer and close, improve screw rod axis body mechanical performance, simplified processing process of the present invention, shorten process time, reduce difficulty of processing, reach low cost, the technical purpose of the high physical property screw shaft of quick manufacture, solve prior art processing screw shaft time complex process, long processing time, difficulty of processing is large, processing cost high-technology defect, and the above-mentioned technological deficiency of more giving prominence to when producing large-scale screw shaft, practicality is large.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1: be process chart of the present invention.
Fig. 2: be that the left-handed positive screw shaft of the present invention coordinates schematic diagram with dextrorotation female screw axle.
Fig. 3: be that dextrorotation of the present invention sun screw shaft coordinates schematic diagram with left-handed female screw axle.
Fig. 4: be the left-handed positive screw shaft schematic diagram of the present invention.
Fig. 5: be dextrorotation female screw axle schematic diagram of the present invention.
Fig. 6: be dextrorotation of the present invention sun screw shaft schematic diagram.
Fig. 7: be the present invention's left-handed female screw axle schematic diagram.
Fig. 8: the sheet parts schematic diagram being the female screw having a profile of tooth to protrude in axis hole of the present invention.
Fig. 9: the sheet parts schematic diagram being the positive screw rod having a profile of tooth to protrude in axis hole of the present invention.
Figure 10: the sheet parts schematic diagram being the female screw having multiple profile of tooth to protrude in axis hole of the present invention.
Figure 11: the sheet parts schematic diagram being the positive screw rod having multiple profile of tooth to protrude in axis hole of the present invention.
Figure 12: be the schematic diagram that the present invention has the axle of many right hand helix shape profile of tooth grooves.
Figure 13: be the schematic diagram that the present invention has the axle of many left-turn spiral shape profile of tooth grooves.
Figure 14: be the schematic diagram that the present invention has the axle of a right hand helix shape profile of tooth groove.
Figure 15: be the schematic diagram that the present invention has the axle of a left-turn spiral shape profile of tooth groove.
In figure: 1. sheet parts, 2. axle, 3. right-hand screw keyway, 4. left-hand screw keyway, 5. right-hand screw spline, 6. left-hand screw spline, 7. engaging piece at the bottom of tooth, 8. tooth top engaging piece, 9. flat key shape tooth projecting apertures, 10. spline shape tooth projecting apertures, 11. left-handed positive screw rods, 12. dextrorotation female screws, 13. dextrorotation sun screw rods, 14. left-handed female screws.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention will be further described, but protection domain of the presently claimed invention is not limited to the scope described by specific embodiment.
Example 1: as shown in Fig. 1 to Figure 15, the processing method of disclosed a kind of multi-layer threaded rod axle, described screw shaft comprises sheet parts 1, axle 2, there are engaging piece 7 at the bottom of tooth and tooth top engaging piece 8 in the outside of sheet parts 1, axis hole is had in sheet parts 1, a profile of tooth is had at least to protrude in axis hole, the outside of axle 2 has a spiral groove at least, the quantity that profile of tooth in sheet parts 1 axis hole is protruded is identical with the quantity of the groove of the external helicoid shape of axle 2, and cooperatively interact, the cover that the outside of axle 2 is closely orderly has multi-disc sheet parts 1, relative position between axle 2 and multi-disc sheet parts 1 is fixed, metal is filled with in gap mutual between axle 2 and multi-disc sheet parts 1, concrete procedure of processing is as follows:
Step 1): sheet metal is machined into sheet parts 1;
Step 2): Quenching Treatment is carried out to the sheet parts 1 after shaping;
Step 3): the outside then multi-disc sheet parts 1 being enclosed within axle 2, the tooth in sheet parts 1 axis hole is convex to cooperatively interact with the groove of the external helicoid shape of axle 2, forms the appearance of spiral oblique crank Z;
Step 4): then the relative position that the multi-disc sheet parts 1 of the spiral oblique crank Z after above-mentioned moulding and axle 2 carry out profile is fixed, after fixing, form screw rod axis body;
Step 5): the inspection of semifinished product is carried out to described screw rod axis body, the qualified screw rod axis body reaching drawing configuration design requirement enters next step, defective screw rod axis body 5 is checked after entering the mould squeezing shaping of screw shaft shape again, enters next step after qualified;
Step 6): then by the surperficial prefluxing of above-mentioned screw rod axis body;
Step 7): the screw rod axis body then surface being coated with fluxing agent immerses metallic solution;
Step 8): then screw rod axis body is taken out from metallic solution, carry out process for cooling;
Step 9): then carry out product inspection by above-mentioned through cooled screw shaft, qualified finished product screw shaft warehouse-in, defective screw shaft is checked after carrying out the outer contour surface process of screw shaft again, the finished product screw shaft warehouse-in after qualified.
Example 2: as shown in Fig. 1 to Figure 15 and example 1, the processing method of disclosed a kind of multi-layer threaded rod axle, adopt wherein a kind of method of punching press, Linear cut, laser cutting, plasma cut, the cutting of high pressure liquid muscle power, by toothed for sheet metal machine-shaping sheet parts 1.
Example 3: as shown in Fig. 1 to Figure 15 and example 1, the processing method of disclosed a kind of multi-layer threaded rod axle, wherein a kind of method that quenching adopts high-frequency quenching, mid frequency induction hardening or heat-treatment furnace to quench.
Example 4: as shown in Fig. 1 to Figure 15 and example 1, the processing method of disclosed a kind of multi-layer threaded rod axle, completes screw rod axis body and immerses metallic solution technique in vacuum tank.
Example 5: as shown in Fig. 1 to Figure 15 and example 1, the processing method of disclosed a kind of multi-layer threaded rod axle, the metallic solution that screw rod axis body immerses is selected from the mixing of following any one or two or more arbitrary proportions: plumbous liquid, tin liquor, copper liquid, copper liquid, aluminium liquid.
Example 6: as shown in Fig. 1 to Figure 15 and example 4, the processing method of disclosed a kind of multi-layer threaded rod axle, immerse in metallic solution technical process at vacuum tank inner screw axis body, close vavuum pump, open intake valve fast, make air inlet fast in vacuum tank, when waiting until pressure and normal-pressure balance in vacuum tank, cut out intake valve reopens vavuum pump and carries out negative-pressure ward, and above-mentioned rapid pressure and fast decompression process hocket once.
Example 7: as shown in Fig. 1 to Figure 15 and example 1, the processing method of disclosed a kind of multi-layer threaded rod axle, have a profile of tooth to protrude in the axis hole of described sheet parts 1, the spiral groove of axle 2 is grooves of a spiral profile of tooth;
Described sheet parts 1 is the sheet parts 1 of the female screw having a profile of tooth to protrude in the axis hole shown in Fig. 8, and axle 2 is the axles 2 having a right hand helix shape profile of tooth groove shown in Figure 14, after processing, form the dextrorotation female screw shown in Fig. 5;
Described sheet parts 1 is the sheet parts 1 of the female screw having a profile of tooth to protrude in the axis hole shown in Fig. 8, and axle 2 is the axles 2 having a left-turn spiral shape profile of tooth groove shown in Figure 15, after processing, form the left-handed female screw shown in Fig. 7;
Described sheet parts 1 is the sheet parts 1 of the positive screw rod having a profile of tooth to protrude in the axis hole shown in Fig. 9, and axle 2 is the axles 2 having a right hand helix shape profile of tooth groove shown in Figure 14, forms the dextrorotation sun screw rod shown in Fig. 6 after processing;
Described sheet parts 1 is the sheet parts 1 of the female screw having a profile of tooth to protrude in the axis hole shown in Fig. 9, and axle 2 is the axles 2 having a left-turn spiral shape profile of tooth groove shown in Figure 15, after processing, form the left-handed positive screw rod shown in Fig. 4.
Example 8: as shown in Fig. 1 to Figure 15 and example 1, the processing method of disclosed a kind of multi-layer threaded rod axle, has multiple profile of tooth to protrude in axis hole in described sheet parts 1, and the spiral groove of axle 2 is grooves of spiral multiple profile of tooth;
Described sheet parts 1 is the sheet parts 1 of the female screw having multiple profile of tooth to protrude in the axis hole shown in Figure 10, and axle 2 is the axles 2 having many right hand helix shape profile of tooth grooves shown in Figure 12, after processing, form the dextrorotation female screw shown in Fig. 5;
Described sheet parts 1 is the sheet parts 1 of the female screw having multiple profile of tooth to protrude in the axis hole shown in Figure 10, and axle 2 is the axles 2 having many left-turn spiral shape profile of tooth grooves shown in Figure 13, after processing, form the left-handed female screw shown in Fig. 7;
Described sheet parts 1 is the sheet parts 1 of the positive screw rod having multiple profile of tooth to protrude in the axis hole shown in Figure 11, and axle 2 is the axles 2 having many right hand helix shape profile of tooth grooves shown in Figure 12, forms the dextrorotation sun screw rod shown in Fig. 6 after processing;
Described sheet parts 1 is the sheet parts 1 of the female screw having multiple profile of tooth to protrude in the axis hole shown in Figure 11, and axle 2 is the axles 2 having many left-turn spiral shape profile of tooth grooves shown in Figure 13, after processing, form the left-handed positive screw rod shown in Fig. 4.
Example 9: as shown in Fig. 1 to Figure 15 and example 1, the processing method of disclosed a kind of multi-layer threaded rod axle, the method that the described relative position multi-disc sheet parts 1 of the spiral oblique crank Z after moulding and axle 2 being carried out profile is fixed is: with axial force clamping sheet parts 1 on axle, and fixing relative position, all there is screw thread at the two ends of described spiral groove; Described screw thread is all provided with nut, nut by axle 2 and relative position between multi-disc sheet parts 1 fix.
Example 10: as shown in Fig. 1 to Figure 15 and example 1, the processing method of disclosed a kind of multi-layer threaded rod axle, the method that the described relative position multi-disc sheet parts 1 of the spiral oblique crank Z after moulding and axle 2 being carried out profile is fixed is: adopt auxiliary clamp, axial grip sheet parts 1 while clamp shaft, and fixing relative position.
Example 11: as shown in Fig. 1 to Figure 15 and example 1-10, the compressor of disclosed a kind of multi-layer threaded rod, comprise cylinder, screw shaft is had in cylinder, it is characterized in that: described screw shaft is a kind of multi-layer threaded rod axle, screw shaft also comprises sheet parts 1, axle 2, there are engaging piece 7 at the bottom of tooth and tooth top engaging piece 8 in the outside of sheet parts 1, axis hole is had in sheet parts 1, a profile of tooth is had at least to protrude in axis hole, the outside of axle 2 has a spiral groove at least, the quantity that profile of tooth in sheet parts 1 axis hole is protruded is identical with the quantity of the groove of the external helicoid shape of axle 2, and cooperatively interact, the cover that the outside of axle 2 is closely orderly has multi-disc sheet parts 1, relative position between axle 2 and multi-disc sheet parts 1 is fixed, metal is filled with in gap mutual between axle 2 and multi-disc sheet parts 1, screw shaft adopts the method for example 1-10 to produce, screw shaft in cylinder is that the left-handed positive screw shaft 11 shown in Fig. 2 cooperatively interacts with dextrorotation female screw axle 12.
Example 12: as shown in Fig. 1 to Figure 15 and example 1-10, the compressor of disclosed a kind of multi-layer threaded rod, comprise cylinder, screw shaft is had in cylinder, it is characterized in that: described screw shaft is a kind of multi-layer threaded rod axle, screw shaft also comprises sheet parts 1, axle 2, there are engaging piece 7 at the bottom of tooth and tooth top engaging piece 8 in the outside of sheet parts 1, axis hole is had in sheet parts 1, a profile of tooth is had at least to protrude in axis hole, the outside of axle 2 has a spiral groove at least, the quantity that profile of tooth in sheet parts 1 axis hole is protruded is identical with the quantity of the groove of the external helicoid shape of axle 2, and cooperatively interact, the cover that the outside of axle 2 is closely orderly has multi-disc sheet parts 1, relative position between axle 2 and multi-disc sheet parts 1 is fixed, metal is filled with in gap mutual between axle 2 and multi-disc sheet parts 1, screw shaft adopts the method for example 1-10 to produce, screw shaft in cylinder is that the dextrorotation sun screw shaft 13 shown in Fig. 3 cooperatively interacts with left-handed female screw axle 14.
Below by reference to the accompanying drawings embodiments of the present invention are explained in detail; but the present invention is not limited thereto; in the ken that person of ordinary skill in the field possesses; can also make a variety of changes under the prerequisite not departing from present inventive concept; person of ordinary skill in the field is from above-mentioned design; without performing creative labour, done all conversion, all drop within protection scope of the present invention.
Claims (10)
1. the processing method of a multi-layer threaded rod axle, described screw shaft comprises sheet parts (1), axle (2), there are engaging piece at the bottom of tooth (7) and tooth top engaging piece (8) in the outside of sheet parts (1), sheet parts has axis hole in (1), a profile of tooth is had at least to protrude in axis hole, the outside of axle (2) has a spiral groove at least, the quantity that profile of tooth in sheet parts (1) axis hole is protruded is identical with the quantity of the groove of the external helicoid shape of axle (2), and cooperatively interact, the cover that the outside of axle (2) is closely orderly has multi-disc sheet parts (1), relative position between axle (2) and multi-disc sheet parts (1) is fixed, metal is filled with in gap mutual between axle (2) and multi-disc sheet parts (1), it is characterized in that:
Procedure of processing is as follows:
Step 1): sheet metal is machined into sheet parts (1);
Step 2): Quenching Treatment is carried out to the sheet parts (1) after shaping;
Step 3): the outside then multi-disc sheet parts (1) being enclosed within axle (2), the tooth in sheet parts (1) axis hole is convex to cooperatively interact with the groove of the external helicoid shape of axle (2), forms the appearance of spiral oblique crank Z;
Step 4): the relative position then the multi-disc sheet parts (1) of the spiral oblique crank Z after above-mentioned moulding and axle (2) being carried out profile is fixed, and forms screw rod axis body after fixing;
Step 5): carry out the inspection of semifinished product to described screw rod axis body, qualified screw rod axis body enters next step, again checks, enter next step after qualified after defective screw rod axis body (5) enters the mould squeezing shaping of screw shaft shape;
Step 6): then by the surperficial prefluxing of above-mentioned screw rod axis body;
Step 7): the screw rod axis body then surface being coated with fluxing agent immerses metallic solution;
Step 8): then screw rod axis body is taken out from metallic solution, carry out process for cooling;
Step 9): then carry out product inspection by above-mentioned through cooled screw shaft, qualified finished product screw shaft warehouse-in, defective screw shaft is checked after carrying out the outer contour surface process of screw shaft again, the finished product screw shaft warehouse-in after qualified.
2. the processing method of a kind of multi-layer threaded rod axle according to claim 1, it is characterized in that: the wherein a kind of method adopting punching press, Linear cut, laser cutting, plasma cut, the cutting of high pressure liquid muscle power, by toothed for sheet metal machine-shaping sheet parts (1).
3. the processing method of a kind of multi-layer threaded rod axle according to claim (1), is characterized in that: wherein a kind of method that quenching adopts high-frequency quenching, mid frequency induction hardening or heat-treatment furnace to quench.
4. the processing method of a kind of multi-layer threaded rod axle according to claim 1, is characterized in that: in vacuum tank, complete screw rod axis body immerse metallic solution technique.
5. the processing method of a kind of multi-layer threaded rod axle according to claim 1, is characterized in that: the metallic solution that screw rod axis body immerses is selected from the mixing of following any one or two or more arbitrary proportions: plumbous liquid, tin liquor, copper liquid, copper liquid, aluminium liquid.
6. the processing method of a kind of multi-layer threaded rod axle according to claim 4, it is characterized in that: immerse in metallic solution technical process at vacuum tank inner screw axis body, close vavuum pump, open intake valve fast, make air inlet fast in vacuum tank, by the time, in vacuum tank when pressure and normal-pressure balance, close intake valve and reopen vavuum pump and carry out negative-pressure ward, above-mentioned rapid pressure and fast decompression process hocket once.
7. the processing method of a kind of multi-layer threaded rod axle according to claim 1, is characterized in that: have a profile of tooth to protrude in the axis hole of described sheet parts (1), the spiral groove of axle (22) is the groove of a spiral profile of tooth.
8. the processing method of a kind of multi-layer threaded rod axle according to claim 1, is characterized in that: have multiple profile of tooth to protrude in described sheet parts (1) interior axis hole, and the spiral groove of axle (2) is the groove of spiral multiple profile of tooth.
9. the processing method of a kind of multi-layer threaded rod axle according to claim 1, it is characterized in that: the method that the described relative position multi-disc sheet parts (1) of the spiral oblique crank Z after moulding and axle (2) being carried out profile is fixed is: with axial force clamping sheet parts (1) on axle, and fixing relative position.
10. the processing method of a kind of multi-layer threaded rod axle according to claim 1, it is characterized in that: the method that the described relative position multi-disc sheet parts (1) of the spiral oblique crank Z after moulding and axle (2) being carried out profile is fixed is: adopt auxiliary clamp, axial grip sheet parts (1) while clamp shaft, and fixing relative position.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510463588.9A CN104985407A (en) | 2015-08-02 | 2015-08-02 | Machining method of multi-layer screw shaft |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510463588.9A CN104985407A (en) | 2015-08-02 | 2015-08-02 | Machining method of multi-layer screw shaft |
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| CN104985407A true CN104985407A (en) | 2015-10-21 |
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| CN201510463588.9A Pending CN104985407A (en) | 2015-08-02 | 2015-08-02 | Machining method of multi-layer screw shaft |
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Application publication date: 20151021 |