CN204209360U - A kind of air-conditioning condenser and evaporator fin automatic intubation machine U-tube pilot pin - Google Patents
A kind of air-conditioning condenser and evaporator fin automatic intubation machine U-tube pilot pin Download PDFInfo
- Publication number
- CN204209360U CN204209360U CN201420488135.2U CN201420488135U CN204209360U CN 204209360 U CN204209360 U CN 204209360U CN 201420488135 U CN201420488135 U CN 201420488135U CN 204209360 U CN204209360 U CN 204209360U
- Authority
- CN
- China
- Prior art keywords
- pilot pin
- tube
- axis
- air
- guide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a kind of air-conditioning condenser and evaporator fin automatic intubation machine U-tube pilot pin, the two ends of pilot pin are set to bullet, the mid portion of pilot pin is set to the axis body with step surface, and described axis body comprises first axis of guide and second axis of guide.Automatic intubation machine utilizes pilot pin to carry out the automatic intubation of U-tube, solves the problem of air-conditioning condenser and evaporator fin automatic intubation machine U-tube automatic guiding in intubate operation, decreases the wearing and tearing of U-tube to the destruction of fin and U-tube self; Change the processing technology of pilot pin simultaneously, improve the working (machining) efficiency of pilot pin, make the quality of pilot pin better, ensure that the reliability of automatic intubation machine in catheterization procedure.
Description
Technical field
The utility model relates to a kind of air-conditioning condenser and evaporator fin automatic intubation machine U-tube pilot pin, belongs to air-conditioning condenser and evaporator fin U-tube automation intubation technique field.
Background technology
The condenser used in air-conditioner and evaporimeter mostly are copper pipe fin type heat exchanger, and outdoor machine of air-conditioner generally adopts dual-row condenser, and copper pipe generally adopts smooth pipe or riffled tube, and fin is made up of aluminium foil usually.Air-conditioning condenser and evaporator fin U-tube intubate are the shaping critical processes of air-conditioning condenser, and its intubate quality directly affects air-conditioning condenser heat exchange performance.Current U-tube intubate is mainly realized by manual operation, and the single insertion of U-tube single, without guider.There are the problems such as condenser quality is unstable, percent defective is high, efficiency is low, labor cost is high in artificial intubate.
Air-conditioning condenser and evaporator fin automatic intubation machine can replace the automatic intubation manually realizing U-tube, compare with artificial intubate, can efficiently, reliable, lower cost realize intubate automation.In U-tube automatic intubation operation, U-tube pilot pin is used for U-tube and inserts automatic guiding in fins set process, can reduce the wearing and tearing of U-tube to the destruction of fin and U-tube self.
According to existing air-conditioning condenser and evaporator fin forming technique and U-tube forming technique, pilot pin design should meet the instructions for use of air-conditioning condenser and evaporator fin automatic intubation machine, there is good steering capability, anti-wear performance, bending strength, can not produce air-conditioner fin simultaneously and destroy.
Penetrate swimmingly for making U-tube and pass air-conditioner fin group, needing balancedly to arrange thickness, pilot pin that length is suitable.U-tube internal diameter size is less, and the pilot pin being installed on U-tube mouth has the very large feature of draw ratio (L/D).During the elongated pilot pin of conventional machining, due to its poor rigidity, under the effect of cutting force and heat in metal cutting, pilot pin is easy to produce flexural deformation, destroys the accuracy of cutter and part relative motion, has a strong impact on the machining accuracy of pilot pin.After pilot pin produces flexural deformation simultaneously, process system also can be caused to vibrate, affect the roughness of pilot pin.
Utility model content
For the deficiencies in the prior art, the utility model provides a kind of air-conditioning condenser and evaporator fin automatic intubation machine U-tube pilot pin.
The technical solution of the utility model is as follows:
A kind of air-conditioning condenser and evaporator fin automatic intubation machine U-tube pilot pin, the two ends of described pilot pin are set to bullet, and the mid portion of described pilot pin is set to the axis body with step surface, and described axis body comprises first axis of guide and second axis of guide.
According to the utility model, preferably, the bullet at described pilot pin two ends is all set to that length is 30 ~ 40mm, cone end diameter is Φ 2 ~ Φ 2.5mm, tapering is the bullet of 1:10; The length of described first axis of guide is 40 ~ 50mm, diameter is Φ 6.2 ± 0.02mm, and the length of described second axis of guide is 15 ~ 25mm, diameter is Φ 7.10
0 + 0.03mm.
Preferred further, the surface roughness of described first axis of guide and second axis of guide is 1.6 μm; The cone end of described bullet is provided with transition arc, and the radius of described transition arc is 0.5mm.The benefit of this design is, the cone end of bullet is set to the circular arc of rounding off, can avoid pilot pin in inserting process, cause the friction of U-tube and fins set to scratch, the cone end simultaneously smoothly transitted is conducive to leading into and extracting of pilot pin.
Manufacture a processing technology for above-mentioned air-conditioning condenser and evaporator fin automatic intubation machine U-tube pilot pin, comprise pretreatment stage, heat treatment stages, axis body grinding stage and bullet grinding stage, step is as follows,
Pretreatment stage: select Cr12MoV alloy tool steel as the raw material of processing pilot pin, by behind heating raw materials to 1150 ~ 1180 DEG C, be incubated 8 ~ 10 minutes; Carry out oil quenching after insulation terminates, raw material is cooled to less than 300 DEG C, then by raw material tempering 2 ~ 3 hours at 750 ± 10 DEG C, for subsequent use to do;
Heat treatment stages: by behind pretreated heating raw materials to 1020 ~ 1040 DEG C, be incubated 40 minutes; It is cold that insulation terminates laggard promoting the circulation of qi, and after continuing air cooling 60 ~ 90s, raw material is cooled to 950 ~ 1000 DEG C, and then raw material is put into 50 ~ 100 DEG C of oil and carry out stirring quenching, get the raw materials ready to form processing, it is HRC58 ~ 62 that gained processes the hardness of getting the raw materials ready;
In the axis body grinding stage: the processing after heat treatment got the raw materials ready, centerless grinder is utilized to carry out the grinding of axis body, first axis of guide that grinding of processing being got the raw materials ready goes out and second axis of guide;
In the bullet grinding stage: after the axis body grinding that processing is got the raw materials ready completes, utilize the cylindrical grinder of band index dial to get the raw materials ready to processing and carry out the grinding of bullet, two ends grinding of processing being got the raw materials ready goes out bullet, obtains pilot pin after grinding completes.
According to the utility model, preferably, described heat treatment stages uses two chamber vacuum furnace to heat.
According to the utility model, preferably, the gas that described heat treatment stages air cooling process uses is high pure nitrogen.
According to the utility model, preferably, described cylindrical grinder comprises lathe bed, workbench, the headstock, scroll chuck, emery wheel, mill frame, tailstock and is provided with the blade fin of index dial, described workbench is arranged on lathe bed, the described headstock and tailstock are arranged on the two ends of worktable upper surface, the described headstock is fixedly connected with scroll chuck, described blade fin is arranged on the side of tailstock, described blade fin comprises guide rail and leading screw, the movement that described mill frame is realized on guide rail by screw mandrel, described emery wheel is fixedly installed on mill frame, and tailstock is provided with tail spindle.When carrying out workpiece grinding, one end of workpiece is clipped on scroll chuck, the other end withstands workpiece by tail spindle and is fixed by workpiece, by adjusting the index dial of blade fin, index dial is locked after adjusting angle needed for pilot pin taper WEDM, utilize blade fin guide rail guiding, leading screw transmission power, realize the steady and continuous feeding of pilot pin tapering grinding.
Preferred further, described cylindrical grinder also comprises support tapering cutting ferrule, and described support tapering cutting ferrule is set to a cylinder, and described cylindrical one end open forms a cavity, and the described cylindrical other end is provided with a bellmouth adapted to bullet.The benefit of this design is, described support tapering cutting ferrule one end cavity is set on cylindrical grinder tailstock centre axle, the bellmouth of the other end is set in the bullet of pilot pin, support tapering cutting ferrule to rotate with cylindrical grinder tailstock centre axle, the support tapering cutting ferrule set up correspondingly improves the rigidity of pilot pin in process, ensure that the machining accuracy of pilot pin workpiece under emery wheel High Rotation Speed, the grinding of segmentation tapering is carried out to pilot pin workpiece simultaneously.
According to the utility model, preferably, the described bullet grinding stage adopts the processing mode of segmentation tapering grinding.In this process, pilot pin workpiece first time is clamped in scroll chuck, adjustment blade fin is by wheel grinding 15mm tapering; After first time grinding completes, the bellmouth second time clamping 10mm tapering place supported on tapering cutting ferrule is passed through wheel grinding 20mm tapering, after second time grinding completes, the bellmouth supported on tapering cutting ferrule third time clamping 25mm tapering place is remained tapering by wheel grinding, tapering grinding dosage leaves the grinding allowance of 0.05mm after should ensureing a complete tapering of grinding, and then fine grinding reaches drawing requirement.
The beneficial effects of the utility model are:
1. the utility model air-conditioning condenser and evaporator fin automatic intubation machine U-tube pilot pin, solve the problem of air-conditioning condenser and evaporator fin automatic intubation machine U-tube automatic guiding in intubate operation, decrease the wearing and tearing of U-tube to the destruction of fin and U-tube self.
2. the utility model is according to the instructions for use of pilot pin, for pilot pin processing typical defect and problem, in processing technology, facility etc., carry out systematic discussion, define a set of comparatively reasonably processing technology, and this processing technology economy simple to operate, processing quality is easy to ensure.
3. the utility model adopts conventional machine tool processing pilot pin workpiece, transforms original lathe, improves process by making low cost frock clamp, simple and quick, improves the working (machining) efficiency of pilot pin.
4. the utility model air-conditioning condenser and evaporator fin automatic intubation machine U-tube pilot pin easy to use, Be very effective, has good economic benefit and social benefit, is worthy of popularization.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model pilot pin;
Fig. 2 is the structural representation that the utility model pilot pin matches with U-shaped pipe;
Fig. 3 is the Fang great Tu of partial view I in Fig. 2;
Fig. 4 is the motion process schematic diagram that U-tube penetrates fins set;
Fig. 5 is the enlarged drawing of partial view II in Fig. 4;
Schematic diagram when Fig. 6 is less grinder for grinding pilot pin external diameter;
Fig. 7 is improved cylindrical grinder structure schematic diagram;
Fig. 8 is structural representation when being clamped in scroll chuck pilot pin first time;
Fig. 9 is the structural representation that pilot pin second time is clamped in when supporting tapering cutting ferrule;
Figure 10 is structural representation pilot pin third time being clamped in when supporting tapering cutting ferrule;
Figure 11 is the processing process figure of the utility model pilot pin.
Wherein: 1 is first axis of guide, 2 is second axis of guide, and 3 is bullet, and 4 is bullet, 5 is U-tube, and 6 is fins set, and 7 is pilot pin workpiece, and 8 is abrasive grinding wheel, 9 is the first guide wheel, and 10 is the second guide wheel, and 11 is the headstock, and 12 is scroll chuck, 13 is emery wheel, and 14 is mill frame, and 15 is blade fin, and 16 is tailstock, 17 is lathe bed, and 18 is workbench, and 19 is workpiece, and 20 for supporting tapering cutting ferrule, 21 is index dial, and 22 is the first support tapering cutting ferrule, and 23 is the second support tapering cutting ferrule.
Detailed description of the invention
Also by reference to the accompanying drawings the utility model is described further below by embodiment, but is not limited thereto.
Embodiment 1:
A kind of air-conditioning condenser and evaporator fin automatic intubation machine U-tube pilot pin, the two ends of pilot pin are set to bullet, i.e. bullet 3 and bullet 4, and the mid portion of pilot pin is set to the axis body with step surface, axis body comprises first axis of guide 1 and second axis of guide 2, as shown in Figure 1.
Wherein, the bullet 3 at pilot pin two ends and bullet 4 be all set to long for 33.25mm, cone end diameter be Φ 2.5mm, tapering is the bullet of 1:10; The length of first axis of guide 1 is 40mm, and diameter is Φ 6.2 ± 0.02mm, and the length of second axis of guide 2 is 20mm, and diameter is Φ 7.10
0 + 0.03mm.The surface roughness of first axis of guide 1 and second axis of guide 2 is 1.6 μm; The cone end of bullet 3 and bullet 4 is provided with transition arc, and the radius of described transition arc is 0.5mm.Pilot pin coordinates contact process as shown in Figures 2 and 3 with U-tube, and the assembling process of U-tube and fins set as shown in Figure 4 and Figure 5.
Embodiment 2:
A kind of air-conditioning condenser and evaporator fin automatic intubation machine U-tube pilot pin, structure as described in Example 1, its difference is, it is 30mm that the bullet at described pilot pin two ends is all set to grow, cone end diameter is Φ 2mm, tapering is the bullet of 1:10; The length of described first axis of guide 1 is 50mm, diameter is Φ 6.2 ± 0.02mm, and the length of described second axis of guide 2 is 15mm, diameter is Φ 7.10
0 + 0.03mm.
Embodiment 3:
A kind of air-conditioning condenser and evaporator fin automatic intubation machine U-tube pilot pin, structure as described in Example 1, its difference is, it is 40mm that the bullet at described pilot pin two ends is all set to grow, cone end diameter is Φ 2.5mm, tapering is the bullet of 1:10; The length of described first axis of guide 1 is 40mm, diameter is Φ 6.2 ± 0.02mm, and the length of described second axis of guide 2 is 25mm, diameter is Φ 7.10
0 + 0.03mm.
Claims (3)
1. an air-conditioning condenser and evaporator fin automatic intubation machine U-tube pilot pin, it is characterized in that, the two ends of described pilot pin are set to bullet, and the mid portion of described pilot pin is set to the axis body with step surface, and described axis body comprises first axis of guide and second axis of guide.
2. air-conditioning condenser as claimed in claim 1 and evaporator fin automatic intubation machine U-tube pilot pin, it is characterized in that, the bullet at described pilot pin two ends is all set to that length is 30 ~ 40mm, cone end diameter is Φ 2 ~ Φ 2.5mm, tapering is the bullet of 1:10; The length of described first axis of guide is 40 ~ 50mm, diameter is Φ 6.2 ± 0.02mm, and the length of described second axis of guide is 15 ~ 25mm, diameter is Φ 7.10
0 + 0.03mm.
3. air-conditioning condenser as claimed in claim 2 and evaporator fin automatic intubation machine U-tube pilot pin, it is characterized in that, the surface roughness of described first axis of guide and second axis of guide is 1.6 μm; The cone end of described bullet is provided with transition arc, and the radius of described transition arc is 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420488135.2U CN204209360U (en) | 2014-08-27 | 2014-08-27 | A kind of air-conditioning condenser and evaporator fin automatic intubation machine U-tube pilot pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420488135.2U CN204209360U (en) | 2014-08-27 | 2014-08-27 | A kind of air-conditioning condenser and evaporator fin automatic intubation machine U-tube pilot pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204209360U true CN204209360U (en) | 2015-03-18 |
Family
ID=52978067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420488135.2U Active CN204209360U (en) | 2014-08-27 | 2014-08-27 | A kind of air-conditioning condenser and evaporator fin automatic intubation machine U-tube pilot pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204209360U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196849A (en) * | 2014-08-27 | 2014-12-10 | 山东大学 | U-shaped pipe pilot pin for air conditioner condenser and evaporator fin automatic pipe inserting machine and machining technology of U-shaped pipe pilot pin |
| CN107322286A (en) * | 2017-08-11 | 2017-11-07 | 成都领专科技有限责任公司 | The servicing unit and condenser automatic intubation equipment assembled for condenser |
-
2014
- 2014-08-27 CN CN201420488135.2U patent/CN204209360U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196849A (en) * | 2014-08-27 | 2014-12-10 | 山东大学 | U-shaped pipe pilot pin for air conditioner condenser and evaporator fin automatic pipe inserting machine and machining technology of U-shaped pipe pilot pin |
| CN104196849B (en) * | 2014-08-27 | 2016-07-06 | 山东大学 | A kind of air-conditioning condenser and evaporator fin automatic intubation machine U-tube pilot pin and processing technique thereof |
| CN107322286A (en) * | 2017-08-11 | 2017-11-07 | 成都领专科技有限责任公司 | The servicing unit and condenser automatic intubation equipment assembled for condenser |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105750843B (en) | A kind of method for machining bore of molybdenum alloy thin-wall long pipe | |
| CN105537449A (en) | Spinning machining method for aluminium alloy thin-walled revolution body | |
| CN202921924U (en) | Turning device for processing slender shaft part | |
| CN106926008A (en) | A kind of major axis special fixture | |
| CN103464995A (en) | Processing method of cold upsetting alloy female mold for countersunk rivet | |
| CN201394745Y (en) | Lathe fixture for circular arc surface machining in clamp jaw body | |
| CN204209360U (en) | A kind of air-conditioning condenser and evaporator fin automatic intubation machine U-tube pilot pin | |
| CN105478552A (en) | Machining method for bend-forming of pipes | |
| CN104196849B (en) | A kind of air-conditioning condenser and evaporator fin automatic intubation machine U-tube pilot pin and processing technique thereof | |
| CN102601402A (en) | Floating boring head for processing inner surface of bent tube billets | |
| CN101480683A (en) | Method for processing spherical closing-in of thin-wall alloy steel delivery tube and special-purpose hob cutter | |
| CN105583579A (en) | Method for machining semicircular gasket | |
| CN201249277Y (en) | Pipe port leveling device | |
| CN203738587U (en) | Guide roller machining clamp | |
| CN109531177A (en) | Double end not coaxial tube joint processing method | |
| CN110026575A (en) | A kind of cutter improving small axial workpiece turning length dimensional uniformity | |
| CN206047647U (en) | A kind of double main shaft special planes suitable for Crankshaft Machining | |
| CN204584922U (en) | A kind of lathe grinding processing unit (plant) of carbide alloy body cylindrical circular arc king bolt groove | |
| CN202479530U (en) | Floating boring head for processing internal surface of swan-neck pipe billet | |
| CN101332556A (en) | Production method of diamond compound tool for processing shoulder hole | |
| CN204036165U (en) | The extra small screw-tap threaded grinding machine of a kind of double abrasive wheel | |
| CN216370402U (en) | Pipe cutting machine with cooling device | |
| CN102554665A (en) | Eccentric resilient bushing | |
| CN116638326B (en) | Shape integrated turning device based on ultrasonic rolling | |
| CN205393552U (en) | Claw shape surrounds formula rod, wire rod or tubular product skin processing guider and equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |