CN102345583A - Compressor pistons and mounting method and fixture thereof - Google Patents
Compressor pistons and mounting method and fixture thereof Download PDFInfo
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- CN102345583A CN102345583A CN201010242698XA CN201010242698A CN102345583A CN 102345583 A CN102345583 A CN 102345583A CN 201010242698X A CN201010242698X A CN 201010242698XA CN 201010242698 A CN201010242698 A CN 201010242698A CN 102345583 A CN102345583 A CN 102345583A
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Abstract
The invention relates to compressor pistons and a mounting method and a fixture thereof. The end surfaces of piston seats of the compressor pistons are provided with positioning holes for mounting, the end surfaces of piston heads are planes without pits, the fixture for mounting the compressor pistons comprises a cylinder body base, a spindle holder, a round fixture and a plurality of positioning rods, wherein the spindle holder is positioned at one side of each cylinder body clamp, the round fixture is positioned between the cylinder body clamps and the spindle holder and is used for positioning the peripheries of the pistons, and the positioning rods are fitted in the positioning holes of the end surfaces of the piston seats. After a spindle, a swash plate and the pistons are assembled, the round fixture is moved to the outer surfaces of the pistons to radially position the pistons; the positioning rods are respectively inserted into the positioning holes of the end surfaces of the piston seats, the upper end of a spindle is held by the spindle holder, and the spindle is aligned with the central hole of a cylinder body; and the spindle holder and the positioning rods are moved downward to mount the piston heads into cylinder holes. The invention can reduce the displacement loss of the cylinder, and can accurately align the pistons with the cylinder in an automated assembly line.
Description
Technical field
The present invention relates to a kind of compressor piston with and assembly method, frock clamping.
Background technique
Oblique tray type compressor has a plurality of pistons that are distributed in around the swash plate, these pistons almost side by side put into the cylinder close with its diameter, and is very high to the alignment accuracy requirement of frock clamping.The situation that the misalignment dress does not advance usually takes place in automated assembly line in the past, needs artificially adjustment, then has a strong impact on efficiency of assembling.
US Patent No. 6343540 proposes a kind of piston positioning fixture; As shown in Figure 1; The end face 22a center of piston head has a shrinkage pool 22c, and the rod member 43 of positioning fixture has the protruding 43a that matches with shrinkage pool on the plane of matching with the piston head end face and the plane, confirms the centre position.Piston anchor clamps 45 limited piston are degrees of freedom radially.
Shrinkage pool in the above-mentioned U. S. Patent makes the compression clearance increase; Promptly in the compressor operating process, when piston moved to bottommost towards the valve plate direction, the volume of cylinder increased; Become the volume that piston head end face and valve plate gap add upper concave hole, so then loss air displacement.In addition; After the assembling of variable compressor swash plate parts; Its minimum angles can't accurately be controlled; The stroke that influences piston reaches the tolerance of 0.4mm; Thereby also there is uncertainty in the position of piston head end face, and the height on rod member plane can't be regulated, during clamping; Unavoidable part piston and rod member are not fitted location difficulty.
Summary of the invention
The object of the present invention is to provide a kind of compressor piston, it can make the loss air displacement of the cylinder of cooperation obtain reducing.
Another object of the present invention is to provide a kind of compressor piston assembly method, it can satisfy the requirement that automated assembly line is accurately aimed at piston and cylinder.
Another object of the present invention is to provide a kind of compressor piston assembly tooling anchor clamps, it can accurately aim at piston and cylinder in automated assembly line.
Compressor piston of the present invention comprises being used for the piston seat of swash plate being installed and can being characterized at cylinder pistons reciprocating head that the piston seat end face is provided with the positioning hole of assembling usefulness, and the end face of piston head is the plane that does not have shrinkage pool.
Be arranged on the piston seat end face owing to will assemble the positioning hole of usefulness; And be the plane that does not have shrinkage pool at the end face of piston head; Make the compression clearance of cylinder reduce; Promptly in the compressor operating process; When piston moves to bottommost towards the valve plate direction; The volume of cylinder reduces, and does not have the volume of the shrinkage pool of piston head with respect to existing cylinder, has so increased air displacement.
Described compressor piston, its further characteristics are that positioning hole is located on the piston head central axis.Because positioning hole is positioned on the piston head central axis, behind the casing bore aligning with piston head central axis and cylinder block, just can accurately piston head be encased in the casing bore, help the realization of automated assembly line.
Compressor piston assembly method of the present invention is characterized in may further comprise the steps: a, cylinder block is fixed; B, assemble main shaft swash plate piston element, move the disc anchor clamps, piston is carried out radial location to the piston outer surface; C, many positioning rods are plugged in the positioning hole of the end face of each piston seat respectively, and main shaft retaining member clamping is in the main shaft upper end, with the center hole of spindle alignment cylinder block; And d, move down main shaft retaining member and positioning rod, piston head is packed in the cylinder-bore.
After the assembling of variable compressor swash plate parts; Utilize positioning rod to control the orientation of each piston seat; Move down main shaft retaining member and positioning rod simultaneously; Thereby the minimum angles of swash plate is precisely controlled; Because positioning rod positions piston in whole assembly process; Therefore the position of piston head end face can be confirmed; Because a plurality of positioning rods are independently of one another; Therefore and the height on rod member plane can be regulated; During clamping; Can guarantee that piston combines with positioning rod, the location is easy, and therefore method of the present invention can satisfy the requirement that automated assembly line is accurately aimed at piston and cylinder.
Described compressor piston assembly method, its further characteristics are that in steps d, the positioning rod top promotes with air pressure.
Described compressor piston assembly method, its further characteristics be, in steps d, piston head is packed into after the cylinder-bore, and the disc anchor clamps are withdrawn from the piston outer surface.
Described compressor piston assembly method, its further characteristics be, in step c, utilizes air pressure to promote many positioning shafts, stretches into each cylinder-bore from the cylinder block below, and these many positioning shafts are fitted with the piston head end face respectively.
Described compressor piston assembly method, its further characteristics are, in step c.After positioning shaft and disc piston head end face were fitted, the disc anchor clamps were withdrawn from the piston outer surface.
Described compressor piston assembly method; Its further characteristics are; In step c; When positioning shaft stretches into cylinder-bore; The main shaft positioning rod stretches into the cylinder block center hole, and main shaft bottom center hole is inserted at its top, and in steps d; After each piston head all got into cylinder-bore, main shaft positioning rod and positioning shaft were withdrawn from cylinder block.
Compressor piston assembly tooling anchor clamps of the present invention; Comprise cylinder-block base; Be positioned at the main shaft retaining member of cylinder block clamping element one side; The disc anchor clamps that between cylinder block clamping element and main shaft retaining member, are used for outside piston face location; Be characterized in, also comprise the positioning rod that cooperates with the positioning hole of the end face of piston seat.
Described compressor piston assembly tooling anchor clamps, its further characteristics are, also comprise the positioning shaft of the end face that is used for carries piston head, and the supporting surface of positioning shaft is the plane, and the main shaft positioning rod that is used for the supports main shaft bottom surface.
Utilize the positioning rod that separates to come each piston is positioned; The main shaft retaining member positions main shaft simultaneously; Thereby the minimum angles of swash plate can be precisely controlled; Because positioning rod positions piston in whole assembly process, therefore the position of piston head end face can be confirmed, because a plurality of positioning rods are independently of one another; Therefore and the height on rod member plane can be regulated; During clamping, can guarantee that piston combines with positioning rod, the location easily.In assembly process, utilize positioning shaft that the end face of piston head is positioned, and further utilize the main shaft positioning rod that main shaft is positioned, under the situation that does not increase piston head end face positioning hole, can further improve the accuracy of aiming at piston and casing bore.
Description of drawings
Fig. 1 is the schematic representation of the assembling of existing compressor with anchor clamps.
Fig. 2 is the organigram of frock clamping of the compressor piston of the first embodiment of the present invention.
Fig. 3 to Fig. 5 is the schematic representation of assembly process of the compressor piston of the first embodiment of the present invention.
Fig. 6 is the organigram of frock clamping of the compressor piston of the second embodiment of the present invention.
Fig. 7 is the organigram of frock clamping of the compressor piston of the third embodiment of the present invention.
Fig. 8 to Figure 12 is the schematic representation of assembly process of the compressor piston of the third embodiment of the present invention.
Embodiment
First embodiment
The installing piston into cylinder hole is an important step of oblique tray type compressor assembling, influences the assembling beat of compressor.Carry out before this link, earlier main shaft, drive plate, swash plate, crawler shoe, piston are assembled into one.As shown in Figure 2, main shaft 1 runs through drive plate 2 center holes, spring and swash plate 3 center holes, and drive plate 2 is fixing with main shaft 1, and swash plate 3 can slide on main shaft, and drive plate 2 is hinged with swash plate 3, so swash plate 3 relative main shaft 1 axis variable-angles.A plurality of pistons 4 are located at the swash plate periphery, are provided with a pair of crawler shoe 5 between piston seat 4A and the swash plate 3.Piston seat 4 end faces are provided with positioning hole 4C, and positioning hole 4C is through centre line L3, the i.e. center of piston head cylindrical.
Main shaft retaining member 14 is held on the upper end of main shaft 1, and main shaft 1 is aimed at cylinder block 7 center holes.Move radially disc anchor clamps 16,, confirm piston 4 radial positions, make each piston aim at cylinder-bore to each piston head 4B outside.Move axially each positioning rod 17, positioning rod 17 is inserted in the positioning hole 4C of piston seat end face respectively, because the axial height of each piston differs, part positioning rod 17 is not inserted in the positioning hole 4C, but unsettled in the aperture.As shown in Figure 2.
Second embodiment
Be that with first embodiment's difference as shown in Figure 6, the opposition side with respect to positioning rod 17 of base 10 is provided with a plurality of positioning shafts 18, aims at each cylinder-bore 8 respectively, the diameter of positioning shaft 18 is less than cylinder-bore 8.Main shaft retaining member 14 is held on the upper end of main shaft 1, and main shaft 1 is aimed at cylinder block center hole 9.Move radially disc anchor clamps 16,, confirm the piston radial position, make each piston aim at cylinder-bore 8 to each piston outside.Move axially each positioning rod 17, positioning rod is plugged in respectively among the positioning hole 4C of piston seat end face.The below of positioning shaft 18 receives air pressure P1, promotes positioning shaft and moves up, and positioning shaft stretches into each cylinder-bore from the cylinder-bore below, and until the plane of top clamping piston end surface, this moment, each positioning rod all inserted in the positioning hole.Above positioning rod, apply air pressure P2 effect, all positioning rods all are positioned among the positioning hole 4C of piston seat end face.By the positioning rod location, positioning shaft compresses respectively at the two ends of piston, and the disc anchor clamps are withdrawn, and main shaft retaining member and positioning rod move down, in the installing piston into cylinder hole.Positioning shaft is withdrawn the piston head end face.Continue to move down main shaft retaining member and positioning rod, until main shaft swash plate piston element is assembled to specified position.
The 3rd embodiment
Be with second embodiment's difference, as shown in Figure 7, above positioning shaft, apply air pressure P2 effect, all positioning rods all are positioned among the positioning hole 4C of piston seat end face.Center hole 9 at cylinder block increases main shaft positioning rod 20.
As shown in Figure 8, the below of positioning shaft receives air pressure P1, promotes positioning shaft and main shaft positioning rod and moves up, and positioning shaft stretches into each cylinder-bore from the cylinder-bore below, and until the plane of top clamping piston end surface, this moment, each positioning rod all inserted in the positioning hole.Main shaft positioning rod 20 stretches into spindle hole from the below, and the center hole 1A of main shaft bottom surface is inserted at its top, and main shaft is supported and locatees.
As shown in Figure 9, the two ends of piston are located by positioning rod respectively, and positioning shaft compresses.The disc anchor clamps are withdrawn from the piston outside.As shown in figure 10, with moved further main shaft retaining member and positioning rod, with the piston head cylinder-bore of packing into.As shown in figure 11, after each piston head all got into cylinder-bore, positioning shaft and main shaft positioning rod were withdrawn.As shown in figure 12, main shaft retaining member and positioning rod continue to move down, until main shaft swash plate piston element is assembled to specified position.
Claims (10)
1. a compressor piston comprises being used for the piston seat of swash plate being installed and can being it is characterized in that at cylinder pistons reciprocating head that the piston seat end face is provided with the positioning hole of assembling usefulness, and the end face of piston head is the plane that does not have shrinkage pool.
2. compressor piston as claimed in claim 1 is characterized in that positioning hole is located on the piston head central axis.
3. compressor piston assembly method is characterized in that may further comprise the steps:
A, cylinder block is fixed;
B, assemble main shaft swash plate piston element, move the disc anchor clamps, piston is carried out radial location to the piston outer surface;
C, many positioning rods are plugged in the positioning hole of the end face of each piston seat respectively, and main shaft retaining member clamping is in the main shaft upper end, with the center hole of spindle alignment cylinder block; And
D, move down main shaft retaining member and positioning rod, piston head is packed in the cylinder-bore.
4. compressor piston assembly method as claimed in claim 3 is characterized in that, in steps d, the positioning rod top promotes with air pressure.
5. like claim 3 or 4 described compressor piston assembly methods, it is characterized in that in steps d, piston head is packed into after the cylinder-bore, the disc anchor clamps are withdrawn from the piston outer surface.
6. like claim 3 or 4 described compressor piston assembly methods, it is characterized in that, in step c, utilize air pressure to promote many positioning shafts, stretch into each cylinder-bore, these many positioning shafts are fitted with the piston head end face respectively from the cylinder block below.
7. compressor piston assembly method as claimed in claim 6 is characterized in that, in step c.After positioning shaft and disc piston head end face were fitted, the disc anchor clamps were withdrawn from the piston outer surface.
8. compressor piston assembly method as claimed in claim 6; It is characterized in that; In step c; When positioning shaft stretches into cylinder-bore; The main shaft positioning rod stretches into the cylinder block center hole, and main shaft bottom center hole is inserted at its top, and in steps d; After each piston head all got into cylinder-bore, main shaft positioning rod and positioning shaft were withdrawn from cylinder block.
9. compressor piston assembly tooling anchor clamps; Comprise cylinder-block base; Be positioned at the main shaft retaining member of cylinder block clamping element one side; The disc anchor clamps that between cylinder block clamping element and main shaft retaining member, are used for outside piston face location; It is characterized in that, also comprise the positioning rod that cooperates with the positioning hole of the end face of piston seat.
10. compressor piston assembly tooling anchor clamps as claimed in claim 9 is characterized in that also comprise the positioning shaft of the end face that is used for carries piston head, the supporting surface of positioning shaft is the plane, and the main shaft positioning rod that is used for the supports main shaft bottom surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010242698.XA CN102345583B (en) | 2010-08-02 | 2010-08-02 | Compressor piston and its assembly method, frock clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010242698.XA CN102345583B (en) | 2010-08-02 | 2010-08-02 | Compressor piston and its assembly method, frock clamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102345583A true CN102345583A (en) | 2012-02-08 |
| CN102345583B CN102345583B (en) | 2016-09-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010242698.XA Expired - Fee Related CN102345583B (en) | 2010-08-02 | 2010-08-02 | Compressor piston and its assembly method, frock clamp |
Country Status (1)
| Country | Link |
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| CN (1) | CN102345583B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102896487A (en) * | 2012-10-18 | 2013-01-30 | 柳州五菱汽车有限责任公司 | Mounting method of piston clamping spring |
| CN105813514A (en) * | 2013-10-16 | 2016-07-27 | Cma佩尔咖啡机有限责任公司 | A device for introducing a filter-holder into a coffee dispenser |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4470761A (en) * | 1980-11-27 | 1984-09-11 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Swash plate type compressor |
| EP1061248A2 (en) * | 1999-06-16 | 2000-12-20 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Piston installing method and positioning jig |
| EP1264987A1 (en) * | 2000-03-07 | 2002-12-11 | Zexel Valeo Climate Control Corporation | Variable displacement type compressor |
| CN2787875Y (en) * | 2004-10-15 | 2006-06-14 | 温州中成化油器制造有限公司汽车空调分公司 | Swashplate type compressor with variable displacement mechanism |
| CN101365878A (en) * | 2006-01-08 | 2009-02-11 | 奥布斯特工程有限公司 | Reciprocating compressor for air conditioning system |
| CN201241808Y (en) * | 2007-01-12 | 2009-05-20 | 布莱克和戴克公司 | Air compressor |
-
2010
- 2010-08-02 CN CN201010242698.XA patent/CN102345583B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4470761A (en) * | 1980-11-27 | 1984-09-11 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Swash plate type compressor |
| EP1061248A2 (en) * | 1999-06-16 | 2000-12-20 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Piston installing method and positioning jig |
| EP1264987A1 (en) * | 2000-03-07 | 2002-12-11 | Zexel Valeo Climate Control Corporation | Variable displacement type compressor |
| CN2787875Y (en) * | 2004-10-15 | 2006-06-14 | 温州中成化油器制造有限公司汽车空调分公司 | Swashplate type compressor with variable displacement mechanism |
| CN101365878A (en) * | 2006-01-08 | 2009-02-11 | 奥布斯特工程有限公司 | Reciprocating compressor for air conditioning system |
| CN201241808Y (en) * | 2007-01-12 | 2009-05-20 | 布莱克和戴克公司 | Air compressor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102896487A (en) * | 2012-10-18 | 2013-01-30 | 柳州五菱汽车有限责任公司 | Mounting method of piston clamping spring |
| CN105813514A (en) * | 2013-10-16 | 2016-07-27 | Cma佩尔咖啡机有限责任公司 | A device for introducing a filter-holder into a coffee dispenser |
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| Publication number | Publication date |
|---|---|
| CN102345583B (en) | 2016-09-28 |
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| CB02 | Change of applicant information |
Address after: Shanghai City 200025 Madang Road No. 347 Applicant after: SANDEN HUAYU AUTOMOTIVE AIR-CONDITIONING CO., LTD. Address before: Shanghai City 200025 Madang Road No. 347 Applicant before: Sandian Beier Automobile Air-Conditioner Co., Ltd., Shanghai |
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Granted publication date: 20160928 Termination date: 20180802 |
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| CF01 | Termination of patent right due to non-payment of annual fee |