CN110598277B - Method for matching piston hemisphere of automobile air-conditioning compressor - Google Patents
Method for matching piston hemisphere of automobile air-conditioning compressor Download PDFInfo
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Abstract
The invention relates to a method for matching a piston hemisphere of an automobile air-conditioning compressor, which belongs to the technical field of piston hemisphere matching and comprises the following steps: step S1: detecting the distance between two ball sockets of the piston base to obtain a ball socket distance value L1; step S2: detecting the thickness of the swash plate, and recording the thickness value as L2; and step S3: calculating a reference value L3 of the hemispherical clearance according to the set numerical interval of the hemispherical clearance, wherein L3= (the upper limit of the hemispherical clearance + the lower limit of the hemispherical clearance)/2; and step S4: calculating the hemisphere size LX = (L1-L2-L3)/2 from the values obtained in the steps S1-S3; step S5: dividing each gear of the hemisphere size into three value areas, namely a low value area, a medium value area and a high value area; step S6: and judging the value area of the hemisphere size LX obtained in the step S4 in the hemisphere size range to solve the technical problem of large piston assembly error caused by low piston hemisphere matching precision in the prior art.
Description
Technical Field
The invention relates to a method for matching a piston hemisphere of an automobile air-conditioning compressor, and belongs to the technical field of piston hemisphere matching.
Background
The automobile air conditioner compressor is the heart of the automobile air conditioner refrigerating system and plays a role in compressing and conveying refrigerant vapor. The swash plate type compressor is widely used because the swash plate, which is inclined to the rotary shaft, rotates to drive the piston or piston rod to reciprocate to compress gas. The method comprises the steps that the proper hemisphere clearance can effectively reduce the working noise of the compressor, the service life of the compressor is prolonged, the machining errors of a piston base, a hemisphere and a swash plate cannot be eliminated, so that in order to improve the assembly accuracy of the piston fit clearance, the traditional technology generally measures the ball socket interval and the swash plate thickness of the piston, the hemisphere size L = (ball socket interval-swash plate thickness-set hemisphere clearance)/2, the gear of the hemisphere size is judged according to the calculated hemisphere size numerical value, the hemisphere size interval in national standards is generally 8-10, the interval range of each gear is 3 mu m, two hemispheres are selected from the gear to be assembled according to the obtained gear of the hemisphere size, however, the accuracy error of the hemisphere matching method can be close to 5 mu m when the accuracy error is maximum, the hemisphere size directly influences the hemisphere gap, the hemisphere gap exceeds or is lower than the set hemisphere gap range, the hemisphere gap all the influences the compressor, the performance of the compressor is influenced, and the accuracy of the hemisphere matching is effectively controlled by people.
Disclosure of Invention
The invention provides a method for matching a piston hemisphere of an automobile air-conditioning compressor, aiming at overcoming the defects in the prior art, and solving the technical problem of large piston assembly error caused by low matching precision of the piston hemisphere in the prior art.
The technical scheme for solving the technical problems is as follows: a method for matching a piston hemisphere of an automobile air conditioner compressor comprises the following steps:
step S1: detecting the distance between two ball sockets of the piston base to obtain a ball socket distance value L1;
step S2: detecting the thickness of the swash plate, and recording the thickness value as L2;
and step S3: calculating a reference value L3 of the hemispherical clearance according to the set numerical interval of the hemispherical clearance, wherein L3= (the upper limit of the hemispherical clearance + the lower limit of the hemispherical clearance)/2;
and step S4: calculating the hemisphere size LX = (L1-L2-L3)/2 from the values obtained in the steps S1-S3;
step S5: dividing each gear of the hemisphere size into three value areas, namely a low value area, a middle value area and a high value area;
step S6: judging the value area of the hemisphere size LX obtained in the step S4 in the hemisphere size file, and when the hemisphere size LX belongs to the low value area, the two hemispheres are selected according to the following criteria: one hemisphere of this gear and one hemisphere lower than this gear, when the hemisphere size LX belongs to the median zone, then the criteria for the selection of both hemispheres are: two hemispheres of this gear, when the hemisphere size LX belongs to the high value region, then the criteria for the choice of the two hemispheres are: one hemisphere of the gear and one hemisphere higher than one gear of the gear.
The invention has the beneficial effects that: divide into three value regions through the gear with hemisphere size, judge the value region of hemisphere size earlier when carrying out hemisphere size gear selection, then carry out the selection of two hemisphere gears according to the value region of hemisphere size, thereby reduce the error of hemisphere apolegamy, the biggest error that makes hemisphere apolegamy method exist reduces, improve the precision of hemisphere apolegamy, thereby hemisphere clearance when control piston assembles, improve the performance of compressor, reduce the noise of compressor during operation, the life of extension compressor.
On the basis of the technical scheme, the invention can be further improved as follows.
Further, adopt piston ball socket interval measuring device to detect the interval between two ball sockets of piston base in step S1, the device includes test base, installs elevating system on test base, installs horizontal displacement detection mechanism on elevating system and installs the test bearing seat under horizontal displacement detection mechanism, test bearing seat upper surface sets up to V type structure, horizontal displacement detection mechanism includes and carries out the left profile modeling gauge head and the right profile modeling gauge head of opposite directions motion or dorsad motion and is used for detecting the displacement sensor of displacement between left profile modeling gauge head and the right profile modeling gauge head by parallel clamping jaw cylinder drive.
The measuring step comprises the following steps: step 1: the piston base is arranged on the V-shaped upper surface of the test bearing seat without other limit; step 2: the lifting mechanism acts to drive the horizontal displacement detection mechanism to move downwards so that the left profiling measuring head and the right profiling measuring head move to a position 0.1mm above an axis between two ball sockets of a piston base placed on the test bearing seat and stop; and step 3: the parallel clamping jaw cylinder of the horizontal displacement detection mechanism acts to enable the left profiling measuring head and the right profiling measuring head to move in a reverse direction and respectively prop into a left ball socket and a right ball socket of the piston base, the piston base is supported and suspended under the propping and pressing action of the left profiling measuring head and the right profiling measuring head, and the displacement sensor detects the movement displacement of the left profiling measuring head and the right profiling measuring head, so that the ball socket distance of the piston base is calculated; and 4, step 4: the ball socket interval detects and finishes, and parallel clamping jaw cylinder moves, drives left profile modeling gauge head and right profile modeling gauge head in opposite directions to make left profile modeling gauge head and right profile modeling gauge head break away from left ball socket and right ball socket respectively, the piston chassis falls back test bearing seat, and the testing process is accomplished.
The beneficial effect who adopts above-mentioned further scheme is that, through adopting piston ball socket interval measuring device, left side profile modeling gauge head and right profile modeling gauge head can adjust the position of piston base when embedding two ball sockets of piston base during the detection to eliminate the detection error that two ball sockets of piston caused by the decentraction, further improve the measurement accuracy of ball socket interval.
Drawings
FIG. 1 is a prior art hemisphere size gear division table;
FIG. 2 is a table of hemisphere size gear and value divisions of the present invention;
FIG. 3 is a schematic flow diagram of the present invention;
FIG. 4 is a schematic perspective view of a piston ball-and-socket distance measuring device;
FIG. 5 is a schematic view of a test holder for holding a piston base;
FIG. 6 is a front view of the present invention;
FIG. 7 is a bottom view of the present invention;
fig. 8 is a schematic perspective view of the left copying probe.
In the figure, 1, a test base, 2, a cylinder support, 3, a lifting cylinder, 4, a floating joint, 5, a test sliding seat, 6, a parallel clamping jaw cylinder, 7, a right clamping jaw, 8, a right connecting plate, 9, a right test sliding table, 10, a right measuring head jacking block, 11, a sensor support, 12, an auxiliary sensor support, 13, a left measuring head jacking block, 14, a right profiling measuring head, 15, a left profiling measuring head, 16, a spring, 17, an auxiliary displacement sensor, 18, a displacement sensor, 19, a transverse sliding block, 20, a transverse linear rail, 21, a left test sliding table, 22, a left connecting plate, 23, a left clamping jaw, 24, a buffer block, 25, a test limiting block, 26, a test limiting plate, 27, a piston base, 27-1, a ball socket, 28, a test bearing seat, 29, a lifting linear rail, 30, a lifting sliding block, 31, a spherical top and 32 locking screws are arranged.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
Example one
A method for matching a piston hemisphere of an automobile air conditioner compressor comprises the following steps:
step S1: and detecting the distance between two ball sockets of the piston base to obtain a ball socket distance value of L1=28.9907mm.
Step S2: detecting the thickness of the swash plate, and recording the thickness value as L2=13.1277mm;
and step S3: calculating a reference value L3 of the hemispherical gap according to the set numerical interval of the hemispherical gap, wherein L3= (the upper limit of the hemispherical gap + the lower limit of the hemispherical gap)/2 = (0.048 + 0.016)/2 =0.032mm;
and step S4: calculating the hemisphere size LX = (L1-L2-L3)/2 = (7.9155mm) from the values obtained in the steps S1-S3;
step S5: dividing each gear of the hemisphere size into three value areas, namely a low value area, a medium value area and a high value area;
step S6: and (4) judging that the hemisphere size LX obtained in the step (S4) is in a value area in the hemisphere size file, wherein the hemisphere size LX belongs to a low value area, and the two hemispheres are selected according to the following criteria: one hemisphere of the gear and one hemisphere lower than the gear are judged to belong to the low value area of the 5 th gear according to LX =7.9155mm, and one hemisphere should be selected in the 5 th gear and the 4 th gear respectively in the hemisphere size gear.
The traditional selection method is as follows: judging that the LX =7.9155mm belongs to 5 th gear, two hemispheres are selected in 5 th gear for assembly, but the maximum error exists: if the two hemispheres in the 5 th gear are selected to be 7.9179mm, the error is as follows: 7.9179X2-7.9155x2=0.048mm, the actual error reaches nearly 4.8 μm.
The selection method of the embodiment is as follows: judging that LX =7.9155mm belongs to the low value zone of 5 th gear, selecting one hemisphere from 5 th gear and 4 th gear for assembly, but the maximum error is the following condition: if one hemisphere size in gear 5 is 7.9150mm and one hemisphere size in gear 4 is 7.9120mm, the error is: 7.9155X2- (7.9150 + 7.9120) =0.004mm, the actual error is 4 μm.
Therefore, the maximum error of the hemisphere matching method is reduced to 4 microns from the traditional 4.8 microns through the hemisphere matching method, the precision of hemisphere matching is improved, the hemisphere gap during piston assembling is controlled, the using performance of the compressor is improved, the noise during compressor working is reduced, and the service life of the compressor is prolonged.
Example two
A method for matching a piston hemisphere of an automobile air conditioner compressor comprises the following steps:
step S1: detecting the distance between two ball sockets of the piston base to obtain a ball socket distance value L1=29.0411mm;
step S2: detecting the thickness of the swash plate, and recording the thickness value as L2=13.1701mm;
and step S3: calculating a reference value L3 of the hemispherical gap according to the set numerical interval of the hemispherical gap, wherein L3= (the upper limit of the hemispherical gap + the lower limit of the hemispherical gap)/2 =0.032mm;
and step S4: calculating the hemisphere size LX = (L1-L2-L3)/2 =7.9195mm from the values obtained in steps S1 to S3;
step S5: dividing each gear of the hemisphere size into three value areas, namely a low value area, a middle value area and a high value area;
step S6: and (5) judging that the hemisphere size LX obtained in the step (S4) is in a value area in the hemisphere size file, wherein the hemisphere size LX belongs to a median area, and the two hemispheres are selected according to the following criteria: two hemispheres of the gear are judged to belong to the median zone of the 6 th gear according to LX =7.9195mm, and two hemispheres are selected from the 6 th gear of the hemisphere size.
The traditional selection method is as follows: judging that LX =7.9195mm belongs to the 6 th gear, two hemispheres are selected in the 6 th gear to be assembled, but the maximum error is the following condition: if the two hemisphere sizes in the 6 th gear are both 7.9180mm, the error is: 7.9180X2-7.9195x2=0.003mm, the actual error reaches 3 μm.
The selection method of the embodiment is as follows: judging that LX =7.9195mm belongs to the median zone of 6 th gear, two hemispheres are selected in 6 th gear for assembly, but the maximum error is the case: if the two hemisphere sizes in gear 6 are 7.9180mm, the error is: 7.9180X2-7.9195x2=0.003mm, the actual error is 3 μm.
Therefore, the maximum error of the hemisphere matching method does not exceed the maximum error of the traditional hemisphere matching method by the hemisphere matching method of the embodiment.
EXAMPLE III
A method for matching a piston hemisphere of an automobile air conditioner compressor comprises the following steps:
step S1: and detecting the distance between two ball sockets of the piston base to obtain a ball socket distance value of L1=29.0395mm.
Step S2: detecting the thickness of the swash plate, and recording the thickness value as L2=13.1845mm;
and step S3: calculating a reference value L3 of the hemispherical gap according to the set numerical interval of the hemispherical gap, wherein L3= (the upper limit of the hemispherical gap + the lower limit of the hemispherical gap)/2 =0.032mm;
and step S4: calculating the hemisphere size LX = (L1-L2-L3)/2 =7.9115mm from the values obtained in steps S1 to S3;
step S5: dividing each gear of the hemisphere size into three value areas, namely a low value area, a middle value area and a high value area;
step S6: and (5) judging that the hemisphere size LX obtained in the step (S4) is in a value area in the hemisphere size file, wherein the hemisphere size LX belongs to a high value area, and selecting two hemispheres according to the following criteria: one hemisphere of the gear and one hemisphere higher than the gear are judged to belong to the high value area of the 3 rd gear according to LX =7.9115mm, and one hemisphere should be selected from the 3 rd gear and the 4 th gear respectively in the hemisphere size gear.
The traditional selection method is as follows: judging that the LX =7.9115mm belongs to the 3 rd gear, two hemispheres are selected in the 3 rd gear to be assembled, but the maximum error exists: if the two hemisphere sizes in gear 3 are both 7.9090mm, the error is: 7.9115X2-7.9090x2=0.005mm, the actual error reaches 5 μm.
The selection method of the embodiment is as follows: judging that LX =7.9115mm belongs to the high-value zone of 3 rd gear, selecting one hemisphere from 3 rd gear and 4 th gear respectively for assembly, but the maximum error is the following condition: if one hemisphere size in gear 3 is 7.9119mm and one hemisphere size in gear 4 is 7.9149mm, the error is: 7.9119+7.9149-7.9115X2=0.0038mm, the actual error is 3.8 μm.
Therefore, the maximum error of the hemisphere matching method is reduced to 3.8 μm from the traditional 5 μm to the lowest by the hemisphere matching method of the embodiment, and the precision of hemisphere matching is improved, so that the hemisphere gap during piston assembly is controlled, the service performance of the compressor is improved, the noise during compressor operation is reduced, and the service life of the compressor is prolonged.
Adopt piston ball socket interval measuring device to detect the interval between two ball sockets of piston base in the step S1 of three embodiments above, the device includes test base 1, installs elevating system on test base 1, installs horizontal displacement detection mechanism on elevating system and installs the test support seat 28 under horizontal displacement detection mechanism, test support seat 28 upper surface sets up to V type structure, and V type structure is used for the piston base 27 that the bearing level was placed, test support seat 28 is used for spacing piston base 27 decurrent direction of motion.
The horizontal displacement detection mechanism comprises a parallel clamping jaw cylinder 6 arranged on the lifting mechanism, a left connecting plate 22 and a right connecting plate 8 which are respectively connected with a left clamping jaw 23 and a right clamping jaw 7 of the parallel clamping jaw cylinder 6, the left clamping jaw 23 is connected with the left test sliding table 21 through a left connecting plate 22, the right clamping jaw 7 is connected with the right test sliding table 9 through a right connecting plate 8, the left measuring head top block 13 and the right measuring head top block 10 are arranged in parallel, the bottom ends of the left measuring head top block 13 and the right measuring head top block 10 are respectively provided with a left copying measuring head 15 and a right copying measuring head 14, the left measuring feeler 15 and the right measuring feeler 14 are both provided in a hemispherical shape matching the spherical shape of the left and right ball sockets 27-1 of the piston base 27, the spherical top ends 31 of the left profiling measuring head 15 and the right profiling measuring head 14 are both cut into planes, screw thread mounting counterbores for mounting the left profiling measuring head 15 or the right profiling measuring head 14 are arranged on the planes, by cutting the spherical top ends 31 of the left profiling probe 15 and the right profiling probe 14 into planes and arranging the threaded mounting counter bores, the left profiling probe 15 and the right profiling probe 14 can be conveniently mounted, meanwhile, the elimination of the top end 31 of the spherical surface is more beneficial to detecting the ball socket distance, so that the spherical surfaces of the left profiling measuring head 15 and the right profiling measuring head 14 are fully contacted with the left ball socket and the right ball socket of the piston base 27, thereby improving the detection precision, the left feeler 15 and the right feeler 14 are mounted in a back-to-back manner with the spherical surfaces facing outward, a U-shaped sensor bracket 11 is fixedly arranged on the right measuring head top block 10, a displacement sensor 18 is arranged between the left measuring head top block 13 and the sensor bracket 11, the polished rod end of the displacement sensor 18 penetrates through and is installed on the sensor bracket 11, and the detection end of the displacement sensor 18 is in contact with the left end face of the left measuring head ejector block 13.
An auxiliary sensor support 12 is further mounted on the right test ejector block 10, an auxiliary displacement sensor 17 is arranged between the left measuring head ejector block 13 and the auxiliary sensor support 12, a polished rod end of the auxiliary displacement sensor 17 penetrates through and is mounted on the auxiliary sensor support 12, the distance between the detection end of the auxiliary displacement sensor 17 and the left end face of the left measuring head ejector block 13 is smaller than the maximum stroke of the displacement sensor 18, the displacement sensor 18 is detachably fixed on the sensor support 11 through a locking screw 32, the auxiliary displacement sensor 17 is detachably fixed on the auxiliary sensor support 12 through the locking screw 32, through the arrangement of the auxiliary displacement sensor 17, the auxiliary displacement sensor 17 works before the stroke of the displacement sensor 18 reaches the maximum stroke, the detection range of equipment can be enlarged by using the displacement sensor 18 at the same time, the phenomenon that the detection precision is reduced due to the full-power use of the displacement sensor 18 is prevented, and the detection precision is ensured while the measurement stroke is increased; through installing displacement sensor 18 and supplementary displacement sensor 17 on sensor support 11 or supplementary sensor support 12 through locking screw 32 respectively, be convenient for load and unload, be favorable to adjusting displacement sensor 18 and supplementary displacement sensor 17's position simultaneously, labour saving and time saving. Displacement sensor 18 and supplementary displacement sensor 17 are coaxial arrangement spring 16, the one end top of spring 16 is on the inside right flank of sensor support 11 or auxiliary sensor support 12, and the other end top is on the left end face of displacement sensor 18 or auxiliary displacement sensor 17's sense terminal, through setting up spring 16, realizes displacement sensor 18 and auxiliary displacement sensor 17's automatic re-setting, improves detection efficiency.
The lifting mechanism comprises a lifting cylinder 3, a test sliding seat 5, a lifting linear rail 29 and a lifting slide block 30, the lifting cylinder 3 is fixedly arranged on the testing base 1 through the cylinder bracket 2, the lifting line rail 29 is arranged on the vertical surface of the testing base 1, a floating joint 4 is arranged between the cylinder rod of the lifting cylinder 3 and the testing sliding seat 5, the floating joint 4 eliminates the equipment clamping stagnation caused by the condition that the lifting cylinder 3 and the test sliding seat 5 are not coaxial, prolongs the service life of the lifting cylinder 3, the test base 1 is provided with a lifting slide block 30, the lifting slide block 30 is matched with a lifting line rail 29 for sliding installation, the parallel clamping jaw cylinder 6 is arranged on the test slide seat 5, the lifting cylinder 3 is arranged to drive the test sliding seat 5 to lift along the lifting line rail 29, so that the abdication of other equipment is facilitated, the lifting action of the horizontal displacement detection mechanism is realized, the lifting action of the test sliding seat 5 is more stable by virtue of the lifting line rail 29 and the lifting slide block 30, the running stability of the equipment is improved, a transverse wire rail 20 is arranged on the test sliding seat 5, the left test sliding table 21 and the right test sliding table 9 are arranged on the transverse wire rail 20 through a transverse sliding block 19 in a sliding fit manner, the left measuring head top block 13 is arranged on the left test sliding table 21, the right measuring head top block 10 is arranged on the right test sliding table 9, by adopting the high-precision sliding fit of the transverse linear rail 20 and the transverse sliding block 19, a high-stability and high-precision guide basis is provided for the horizontal operation of the left measuring head top block 13 and the right measuring head top block 10, therefore, accumulated errors between the left measuring head top block 13 and the right measuring head top block 10 and between the parallel clamping jaw air cylinders 6 are reduced, and the detection precision of the measuring device is improved.
Install test stopper 25 on the test base 1, install test limiting plate 26 on the test slide 5, test limiting plate 26 is located test stopper 25 directly over, all install buffer block 24 on test stopper 25 and test limiting plate 26's the working face, through setting up test stopper 25 and test limiting plate 26, it is spacing hard to form the descending action to lift cylinder 3, prevent that lift cylinder 3 from descending the stroke too big and cause the clashing to equipment, improve equipment operation's security and stability, through setting up buffer block 24, intensity when buffering test stopper 25 and test limiting plate 26 striking, improve equipment operation's stability.
The piston ball socket distance measuring device is used for measuring the piston ball socket distance, and the method comprises the following steps:
step 1: the piston base 27 is placed on the V-shaped upper surface of the test support seat 28 without other limit;
and 2, step: the lifting cylinder 3 acts to drive the horizontal displacement detection mechanism to move downwards, so that the left profiling measuring head 15 and the right profiling measuring head 14 move downwards to a position between two ball sockets 27-1 of the piston base 27 placed on the test bearing seat 28, and specifically, the left profiling measuring head 15 and the right profiling measuring head 14 move to a position 0.1mm above the axes of the two ball sockets 27-1 of the piston base 27 and stop;
and 3, step 3: the parallel gas claw cylinder 6 acts to enable the left clamping jaw 23 to move leftwards, the right clamping jaw 7 to move rightwards, the left test sliding table 21 and the right test sliding table 9 to respectively move backwards along the transverse linear rail 20, the left measuring head top block 13 and the right measuring head top block 10 respectively move leftwards and rightwards, the displacement sensor 18 is pressed when the left measuring head top block 13 moves leftwards, the left profiling measuring head 15 contacts a left ball socket of the piston base 27, the right profiling measuring head 14 contacts a right ball socket of the piston base 27, then the left profiling measuring head 15 and the right profiling measuring head 14 continue to move backwards, under the jacking effect of the left profiling measuring head 15 and the right profiling measuring head 14, the piston base 27 is supported and suspended, the displacement sensor 18 detects the movement displacement of the left profiling measuring head 15 and the right profiling measuring head 14, and therefore the ball socket distance of the piston base 27 is calculated;
and 4, step 4: after the ball socket distance detection is finished, the parallel clamping jaw cylinder 6 acts, the left clamping jaw 23 and the right clamping jaw 7 move in opposite directions, the left test sliding table 21 and the right test sliding table 9 move in opposite directions along the transverse linear rail 20 respectively, the left measuring head ejector block 13 and the right measuring head ejector block 10 move right and left respectively, the left profiling measuring head 15 and the right profiling measuring head 14 are driven to move in opposite directions, the left profiling measuring head 15 and the right profiling measuring head 14 are separated from the left ball socket and the right ball socket respectively, the piston base 27 falls back to the test bearing seat 28, and the detection process is completed.
From the above embodiments, it can be seen that, by using the hemisphere matching method of the present invention, the maximum error values are all less than or equal to those of the conventional hemisphere matching method, so that the hemisphere matching accuracy can be better controlled by using the hemisphere matching method of the present invention.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. A method for matching piston hemispheres of an automobile air conditioner compressor is characterized by comprising the following steps: the method comprises the following steps:
step S1: detecting the distance between two ball sockets of the piston base to obtain a ball socket distance value L1;
step S2: detecting the thickness of the swash plate, and recording the thickness value as L2;
and step S3: calculating a reference value L3 of the hemispherical clearance according to the set numerical interval of the hemispherical clearance, wherein L3= (the upper limit of the hemispherical clearance + the lower limit of the hemispherical clearance)/2;
and step S4: calculating the hemisphere size LX = (L1-L2-L3)/2 according to the numerical values obtained in the steps S1-S3;
step S5: dividing each gear of the hemisphere size into three value areas, namely a low value area, a middle value area and a high value area;
step S6: and judging the value area of the hemisphere size LX in the hemisphere size range obtained in the step S4, and selecting two hemisphere gears according to the value area of the hemisphere size LX.
2. The method for matching the piston hemisphere of the automobile air-conditioning compressor according to claim 1, is characterized in that: when the hemisphere size LX belongs to the low value region, then the criteria for two hemisphere choices are: one hemisphere of this gear and one hemisphere lower than this gear, when the hemisphere size LX belongs to the median zone, then the criteria for the selection of both hemispheres are: two hemispheres of this gear, when the hemisphere size LX belongs to the high value region, then the criteria for the choice of the two hemispheres are: one hemisphere of the gear and one hemisphere higher than one gear of the gear.
3. The method for matching the piston hemisphere of the automobile air-conditioning compressor according to claim 1, is characterized in that: the device comprises a testing base, a lifting mechanism arranged on the testing base, a horizontal displacement detection mechanism arranged on the lifting mechanism and a testing bearing seat arranged under the horizontal displacement detection mechanism, wherein the upper surface of the testing bearing seat is of a V-shaped structure, and the horizontal displacement detection mechanism comprises a left copying measuring head and a right copying measuring head which are driven by parallel clamping jaw cylinders to move in opposite directions or move in a back direction and a displacement sensor used for detecting the displacement between the left copying measuring head and the right copying measuring head.
4. The method for matching the piston hemisphere of the automobile air-conditioning compressor according to claim 3, characterized in that: the measuring step comprises the following steps: step 1: the piston base is arranged on the V-shaped upper surface of the test bearing seat without other limit; step 2: the lifting mechanism acts to drive the horizontal displacement detection mechanism to move downwards so that the left profiling measuring head and the right profiling measuring head move to a position between two ball sockets of a piston base arranged on the test bearing seat; and step 3: the parallel clamping jaw cylinder of the horizontal displacement detection mechanism acts to enable the left copying measuring head and the right copying measuring head to move backwards and respectively prop into a left ball socket and a right ball socket of the piston base, the piston base is supported and suspended under the jacking action of the left copying measuring head and the right copying measuring head, and the displacement sensor detects the movement displacement of the left copying measuring head and the right copying measuring head, so that the ball socket distance of the piston base is calculated; and 4, step 4: the ball socket interval detects and finishes, and parallel clamping jaw cylinder moves, drives left profile modeling gauge head and right profile modeling gauge head in opposite directions to make left profile modeling gauge head and right profile modeling gauge head break away from left ball socket and right ball socket respectively, the piston chassis falls back test bearing seat, and the testing process is accomplished.
5. The method for matching the piston hemisphere of the automobile air-conditioning compressor according to claim 4, is characterized in that: in the step 2, the lifting mechanism drives the detection mechanism to descend, and the left profiling measuring head and the right profiling measuring head move to a position 0.1mm above the axes of the two ball sockets of the piston base and stop.
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| CN114034271B (en) * | 2021-11-04 | 2024-03-01 | 江苏康普瑞森新能源科技有限公司 | Compressor piston cylinder-in detection equipment and method |
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| 自动选择汽车主锥齿轮调整垫片的方法;陈中柘等;《电子科技大学学报》;20020228(第01期);全文 * |
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| CN110598277A (en) | 2019-12-20 |
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