CN114034271B - Compressor piston cylinder-in detection equipment and method - Google Patents
Compressor piston cylinder-in detection equipment and method Download PDFInfo
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- CN114034271B CN114034271B CN202111301888.9A CN202111301888A CN114034271B CN 114034271 B CN114034271 B CN 114034271B CN 202111301888 A CN202111301888 A CN 202111301888A CN 114034271 B CN114034271 B CN 114034271B
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- 238000001514 detection method Methods 0.000 title claims abstract description 155
- 238000000034 method Methods 0.000 title abstract description 13
- 230000000712 assembly Effects 0.000 claims abstract description 53
- 238000000429 assembly Methods 0.000 claims abstract description 53
- 238000003825 pressing Methods 0.000 claims description 30
- 238000006073 displacement reaction Methods 0.000 claims description 22
- 238000005259 measurement Methods 0.000 claims description 9
- 238000003860 storage Methods 0.000 claims description 6
- 238000013459 approach Methods 0.000 claims description 4
- 238000013461 design Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 210000000078 claw Anatomy 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 7
- 238000004378 air conditioning Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
- G01B21/08—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness for measuring thickness
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/16—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring distance of clearance between spaced objects
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/0025—Measuring of vehicle parts
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention relates to a device and a method for detecting the cylinder entering of a compressor piston, which are used for measuring the actual thickness value of a swash plate to be assembled by using a swash plate detection device, calculating the clearance value of a piston assembly in a matched state with a detection flat plate by using a clearance detection device, and finally combining the actual thickness value of the swash plate to obtain the thickness value of the piston assembly in the matched state with the swash plate, so that the quick detection of any swash plate to be assembled and a plurality of groups of piston assemblies to be detected is realized, the swash plate and the piston assembly do not need to be matched and then detected, and meanwhile, the detection and production efficiency are improved. The detection station comprises a matching station and a measuring station which are arranged in parallel and are respectively used for assembling and gap detection of the piston assembly, and the elastic piece assembly of the matching station is convenient for matching the piston with the two hemispherical shoes. The second claw assembly cooperates with the baffle assembly to limit the piston from moving in the horizontal direction, the clearance value of the piston assembly is embodied in the vertical direction, and the piston assembly is enabled to measure the clearance value of the piston assembly based on the detection plate more accurately after limiting.
Description
Technical Field
The invention relates to the technical field of axial piston compressor production, in particular to compressor piston cylinder entering detection equipment and method.
Background
With the development of automobile manufacturing industry, automobile air conditioning technology is being researched faster and faster, and an automobile air conditioning compressor is a heart of an automobile air conditioning refrigerating system and plays a role in compressing and conveying refrigerant steam. The automobile air conditioner compressor is usually an axial piston type, the piston is driven to compress through the rotation of a swash plate, the swash plate is connected with a main shaft at a certain angle, and the piston is pushed to do axial reciprocating motion through the edge of the swash plate, so that the working steps of compression, exhaust, expansion and air suction are realized.
The piston is matched with the sloping cam plate through the hemispherical circular surface in the ball socket, and the hemispherical and sloping cam plate clearance plays an extremely important role to the performance of compressor, directly influences the operating noise of compressor, life and working property etc.. Therefore, in the production and assembly process of the compressor, the fit clearance between the swash plate and each piston assembly matched with the swash plate is required to be controlled, so that the clearance between the piston assembly assembled into the compressor cylinder body and the swash plate is within the range of the designed clearance; the traditional gap detection mode is that manual detection is carried out by adopting a detection tool manually, the efficiency is low, and the detection precision is difficult to control.
In view of the above problems, the present inventors have actively studied and innovated based on the practical experience and expertise that are rich for many years in such product engineering applications, so as to create a compressor piston in-cylinder detection apparatus and method, which make it more practical.
Disclosure of Invention
The invention aims to provide compressor piston in-cylinder detection equipment and method aiming at the defects in the prior art.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: a compressor piston in-cylinder detection apparatus comprising: the device comprises a storage rack, a swash plate detection device and a clearance detection device, wherein the storage rack is used for placing pistons and hemispherical shoes, the swash plate detection device is used for detecting thickness values of the swash plate, the clearance detection device is used for detecting clearance values based on a detection flat plate in a matched state of the pistons and the hemispherical shoes, and the actual clearance values of the pistons matched with the hemispherical shoes and assembled on the swash plate are obtained by combining the swash plate thickness values measured by the swash plate detection device;
the gap detection equipment comprises a detection platform, a pressing mechanism, a distance measuring mechanism and a limiting mechanism, wherein the detection platform comprises a detection flat plate and a plurality of detection stations which are arranged in parallel along the length direction of the detection flat plate, the gap detection equipment further comprises a first driving assembly and a plurality of first jaw assemblies, the first jaw assemblies are arranged corresponding to the detection stations and are driven by the first driving assembly to move along the length direction of the detection flat plate, the detection stations comprise matching stations and measurement stations which are arranged in parallel along the length direction of the detection flat plate, and the thickness of the detection flat plate is identical to the design thickness of the swash plate;
the pressing mechanism comprises a plurality of groups of pressing assemblies and upper top assemblies which are arranged corresponding to the detection stations, and the pressing assemblies and the upper top assemblies are arranged above and below the measuring stations respectively corresponding to the measuring stations; the limiting mechanism comprises a plurality of second jaw assemblies, a plurality of baffle assemblies and a second driving assembly, the second jaw assemblies and the baffle assemblies are arranged corresponding to the measuring stations, the second jaw assemblies are driven by the second driving assembly to move along the vertical direction, and the first jaw assemblies and the second jaw assemblies are respectively positioned at two sides of the detecting plate; the distance measuring mechanism comprises a plurality of displacement sensors which are arranged corresponding to the measuring stations, and the displacement sensors are arranged below the measuring stations.
Further, an elastic sheet assembly is arranged at the matching station and comprises a limiting plate and a first air cylinder, one end of the limiting plate is arranged in a round shape which is matched with the plane of the hemispherical slipper, and the other end of the limiting plate is driven to move along the vertical direction through the first air cylinder arranged below the detection plate;
and a limit groove which is matched with the limit plate is formed in the detection flat plate corresponding to the matching station in a penetrating way, and the round groove end of the limit groove is close to the edge of the detection flat plate.
Further, the first clamping jaw assembly comprises a first clamping block, a first connecting seat and a second air cylinder, the first clamping block is fixed at the end part of an output shaft of the second air cylinder through the first connecting seat, and the first clamping block is driven by the second air cylinder to move along the direction vertical to the length direction of the detection flat plate and is close to or far away from the detection flat plate;
the first clamping block is provided with a first bayonet in a concave manner at one end of the first clamping block, which is far away from the first connecting seat, and the first bayonet can be embedded with the sliding shoe seat on the piston.
Further, the first driving assembly comprises a third cylinder and a mounting plate, the mounting plate is fixedly connected with the second cylinders of the first jaw assemblies, and the third cylinder can drive the mounting plate to move along the length direction of the detection panel.
Further, the second jaw assembly comprises a mounting seat, a first power device and a first sliding rail, wherein the first power device and the first sliding rail are arranged on the first sliding rail, a sliding seat which is in sliding connection with the first sliding rail is arranged on the first sliding rail, a second clamping block is arranged at one end of the sliding seat, which faces the baffle assembly, the first power device can drive the sliding seat to move along a direction perpendicular to the detection flat plate, and the second clamping block is driven to approach or depart from the baffle assembly;
the second clamping block is arranged to be an arc-shaped opening towards one end of the baffle assembly in a concave mode.
Further, the second driving assembly comprises a fixing frame, a second power device and a lifting seat, a second sliding rail is arranged on the fixing frame along the vertical direction, and the lifting seat is in sliding connection with the second sliding rail and is driven by the second power device to move along the vertical direction;
the second jaw assemblies are arranged on the lifting seat in parallel along the length direction of the detection flat plate, and a detachable transverse plate is arranged on the fixing frame corresponding to the detection flat plate.
Further, the baffle assembly is arranged below the measuring station and comprises a fourth cylinder and a limiting baffle, and the fourth cylinder can drive the limiting baffle to move along the length direction perpendicular to the detecting flat plate and face the second jaw assembly to be close to or far away from the second jaw assembly.
Further, the pressing component comprises a pressing head, a second connecting seat, a fifth air cylinder and a guide pillar, wherein the fifth air cylinder and the guide pillar are arranged along the vertical direction, the fifth air cylinder is fixed on a supporting plate above the detection platform, the guide pillar is in sliding connection with the supporting plate and is respectively connected with the output shaft of the fifth air cylinder at two ends of the upper surface of the second connecting seat, and the pressing head is fixed on the lower surface of the second connecting seat.
Further, the upper top assembly comprises a sixth air cylinder, a third connecting seat and a top rod, wherein the top rod is fixed at the top of the third connecting seat along the vertical direction and is driven by the sixth air cylinder to move along the vertical direction;
the displacement sensor is arranged along the vertical direction and close to the ejector rod, is fixed on the fourth connecting seat and is driven to move along the vertical direction through a seventh air cylinder.
Further, the lower pressure head and the ejector rod are arranged oppositely and can move along the same vertical direction.
A detection method of compressor piston in-cylinder detection equipment is applied to the detection equipment and comprises the following steps:
s1: matching the piston with the two hemispherical shoes on a detection flat plate of a matching station, and translating to a measuring station;
s2: after the pushing component is driven to press the upper slipper seat of the piston from the upper side, the distance L between the upper slipper seat and the bottom of the piston is measured through the displacement sensor 1 ；
S3: after the pressing component is reset, the upper top component is driven to press the piston from the lower part, and then the distance L between the pressing component and the bottom of the piston is measured through the displacement sensor 2 ；
S4: the clearance value delta l of the piston assembly after being matched with the swash plate is calculated by the following formula:
Δl＝Δh-ΔL，
ΔL＝|L 1 -L 2 |，
Δh＝H 1 -H 2 ；，
wherein: h 1 To detect the thickness value of the flat plate, H 2 A swash plate thickness value measured by a swash plate detecting device;
s5: and comparing the calculated clearance value delta l with the set clearance to judge whether the matching is qualified or not.
The beneficial effects of the invention are as follows:
the method comprises the steps of matching a plurality of groups of piston assemblies with a detection flat plate on a detection platform, realizing simultaneous detection of gaps of the plurality of groups of piston assemblies under the state of matching the detection platform, referring to a swash plate thickness value measured by a swash plate detection device and a thickness value of the detection flat plate, and finally measuring and calculating actual gap values of different piston assemblies under the state of matching the swash plate;
each detection station on the detection platform correspondingly detects a group of piston assemblies, each detection station comprises a matching station and a measurement station which are arranged in parallel and are respectively used for assembling and gap detection of the piston assemblies, and the elastic sheet assemblies at the matching stations can facilitate matching of the pistons and the two hemispherical shoes;
according to the gap detection equipment disclosed by the invention, the actual thickness value of the swash plate to be assembled is measured by using the swash plate detection device, the gap value of the piston assembly in the matching state with the detection flat plate is measured by using the gap detection device, and finally the thickness value of the piston assembly in the matching state with the swash plate is obtained by combining the actual swash plate thickness value, so that the quick detection of any swash plate to be assembled and a plurality of groups of piston assemblies to be detected is realized, the swash plate and the piston assembly do not need to be detected after being matched, and meanwhile, the detection and production efficiency are improved;
the piston assembly with the clearance value within the design range is matched with the swash plate, so that the sliding of the piston assembly and the surfaces of the two sides of the swash plate is smoother and more stable; the accurate control of the matching precision of the swash plate and the piston assembly can reduce the abrasion between the hemispherical and piston connecting parts and the surface of the swash plate, and prolong the service life of the piston assembly.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.
FIG. 1 is a schematic diagram of a compressor piston in-cylinder detection apparatus in an embodiment of the present invention;
FIG. 2 is a schematic diagram of a middle position detecting device according to an embodiment of the present invention;
FIG. 3 is an exploded view of a gap detection device according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a detection platform according to an embodiment of the present invention;
FIG. 5 is a schematic view of a first jaw assembly according to an embodiment of the invention;
FIG. 6 is a schematic view of the structure of the spring plate assembly and the baffle plate assembly according to the embodiment of the invention;
FIG. 7 is a schematic view of a pressing assembly according to an embodiment of the present invention;
FIG. 8 is a schematic view of a ranging mechanism and overhead assembly according to an embodiment of the present invention;
FIG. 9 is a schematic view of a displacement sensor and a plunger according to an embodiment of the present invention;
FIG. 10 is a schematic view of a second jaw assembly and a second drive assembly according to an embodiment of the invention;
FIG. 11 is a schematic view of a second jaw assembly according to an embodiment of the invention;
FIG. 12 is a schematic view of an embodiment of the invention after the limiting plate of the spring plate assembly is depressed;
FIG. 13 is a schematic view of an embodiment of the present invention in which an upper hemispherical shoe is placed in a limit groove;
FIG. 14 is a schematic view of the piston assembly mated with the detection plate according to the embodiment of the present invention;
FIG. 15 is a schematic view of an embodiment of the present invention after a cross plate is installed;
FIG. 16 is a schematic view of the first jaw assembly after engagement with the piston according to the embodiment of the present invention;
FIG. 17 is a schematic diagram of a piston assembly driven to a measuring station in accordance with an embodiment of the present invention;
FIG. 18 is a schematic view of a driving hold-down assembly according to an embodiment of the present invention;
FIG. 19 is a schematic view of a drive overhead assembly according to an embodiment of the invention;
FIG. 20 is a schematic diagram of a driving displacement sensor according to an embodiment of the present invention;
FIG. 21 is a diagram showing data of a measurement piston in a depressed state according to an embodiment of the present invention;
FIG. 22 is a diagram of data of the measurement piston in the up state according to the embodiment of the present invention;
FIG. 23 is a schematic view showing the measurement of the thickness of a swash plate in an embodiment of the invention.
Reference numerals: 1. a detection platform; 11. a detection plate; 111. a limit groove; 12. detecting a station; 13. a first drive assembly; 131. a third cylinder; 132. a mounting plate; 14. a first jaw assembly; 141. a first clamping block; 141a, a first bayonet; 142. a first connection base; 143. a second cylinder; 15. a matching station; 16. a measuring station; 17. a spring assembly; 171. a limiting plate; 172. a first cylinder; 2. a compressing mechanism; 21. pressing down the assembly; 211. a lower pressure head; 212. a second connecting seat; 213. a fifth cylinder; 214. a guide post; 22. an upper roof assembly; 221. a sixth cylinder; 222. a third connecting seat; 223. a push rod; 23. a support plate; 3. a distance measuring mechanism; 31. a displacement sensor; 32. a fourth connecting seat; 33. a seventh cylinder; 4. a limiting mechanism; 41. a second jaw assembly; 411. a mounting base; 412. a first power unit; 413. a first slide rail; 414. a slide; 415. a second clamping block; 42. a baffle assembly; 421. a fourth cylinder; 422. a limit baffle; 43. a second drive assembly; 431. a fixing frame; 432. a second power device; 433. a lifting seat; 434. a second slide rail; 435. and a transverse plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The compressor piston cylinder entering detection equipment as shown in fig. 1 to 11 comprises a storage rack, a swash plate detection device and a clearance detection device, wherein the storage rack is used for placing pistons and hemispherical shoes, the swash plate detection device is used for detecting thickness values of a swash plate, the clearance detection device is used for detecting clearance values based on a detection flat plate 11 in a matched state of the pistons and the hemispherical shoes, and an actual clearance value of the matched hemispherical shoes of the pistons assembled on the swash plate is obtained by combining the swash plate thickness values measured by the swash plate detection device. The clearance value is a result indirectly calculated through equipment, and the clearance detection and production assembly efficiency is improved without detecting the fit clearance after the piston assembly is matched with the sloping cam plate.
Further, as shown in fig. 3 and 4, the gap detecting apparatus includes a detecting platform 1, a pressing mechanism 2, a distance measuring mechanism 3 and a limiting mechanism 4, the detecting platform 1 includes a detecting plate 11 and a plurality of detecting stations 12 arranged in parallel along a length direction thereof, and further includes a first driving assembly 13 and a plurality of first jaw assemblies 14, the first jaw assemblies 14 are arranged corresponding to the detecting stations 12 and are driven by the first driving assembly 13 to move along the length direction of the detecting plate 11, the detecting stations 12 include a matching station 15 and a measuring station 16 arranged in parallel along the length direction of the detecting plate 11, and a thickness of the detecting plate 11 is identical to a design thickness of a swash plate.
As shown in fig. 7 and 8, the pressing mechanism 2 includes a plurality of sets of pressing assemblies 21 and upper top assemblies 22 disposed corresponding to the detection stations 12, the pressing assemblies 21 and upper top assemblies 22 being disposed above and below the measurement stations 16, respectively; as shown in fig. 4 and 10, the limiting mechanism 4 includes a plurality of second jaw assemblies 41, a plurality of baffle assemblies 42 and a second driving assembly 43, wherein the second jaw assemblies 41 and the baffle assemblies 42 are respectively arranged corresponding to the measuring station 16, the second jaw assemblies 41 are respectively driven by the second driving assembly 43 to move along the vertical direction, and the first jaw assemblies 14 and the second jaw assemblies 41 are respectively positioned at two sides of the detecting flat plate 11; as shown in fig. 8 and 9, the distance measuring mechanism 3 includes a plurality of displacement sensors 31 provided corresponding to the measuring stations 16, the displacement sensors 31 being provided below the measuring stations 16.
In the implementation process, firstly, the piston assembly is matched with the detection flat plate 11 at the matching station 15, the first claw assembly 14 is driven to move along the length direction of the detection flat plate 11 by the first driving assembly 13, and the piston assembly is driven to translate to the measuring station 16, and a gap measuring step is started; after the second jaw assembly 41 is driven to the height of the piston assembly by the second driving assembly 43, the piston is pressed from the front-back direction by the second jaw assembly 41 in cooperation with the baffle assembly 42, so that the piston is limited from moving in the horizontal direction, the piston is ensured to move only in the vertical direction, and the piston assembly is enabled to measure a gap value based on the detection plate 11 more accurately.
As a preference of the above embodiment, the piston assembly is clamped at the edge position of the detecting plate 11 at the matching station 15, and the elastic piece assembly 17 is arranged at the matching station 15, so that the matching of the piston and the two hemispherical shoes can be more convenient. As shown in fig. 5, the elastic sheet assembly 17 disposed at the matching station 15 includes a limiting plate 171 and a first cylinder 172, one end of the limiting plate 171 is set to be round corresponding to the plane of the hemispherical slipper, and the other end is driven to move in the vertical direction by the first cylinder 172 disposed below the detecting plate 11; as shown in fig. 6, a limit groove 111 corresponding to the limit plate 171 is formed in the detection plate 11 corresponding to the matching station 15, and the round groove end of the limit groove 111 is disposed near the edge of the detection plate 11.
The limiting plate 171 on the detection flat plate 11 at the matching station 15 is sunk to a certain depth by adjusting the elastic sheet assembly 17, and is used for arranging an upper hemispherical slipper in the piston assembly, so that a piston matched with a lower hemispherical slipper is conveniently embedded with the edge of the detection flat plate 11, and after matching is finished, the limiting plate 171 is rebounded by adjusting the elastic sheet assembly 17, so that the piston assembly is completely matched with the detection flat plate 11.
In the process of moving the piston assembly from the matching station 15 to the measuring station 16 through the first driving assembly 13, the piston is required to be firstly 'grabbed' by the slide shoe seat on the detection flat plate 11 through the first clamping jaw assembly 14, and then the piston assembly is driven to move while being driven to move through the first driving assembly 13.
Specifically, as shown in fig. 5 and 6, the first jaw assembly 14 includes a first clamping block 141, a first connection seat 142 and a second cylinder 143, the first clamping block 141 is fixed at an output shaft end of the second cylinder 143 through the first connection seat 142, and the first clamping block 141 is driven to move along a direction perpendicular to a length direction of the detection plate 11 through the second cylinder 143 and approaches or departs toward the detection plate 11; the first clamping block 141 is provided with a first bayonet 141a at an end far away from the first connecting seat 142, and the first bayonet 141a can be embedded with the sliding shoe seat on the piston. The first driving assembly 13 includes a third cylinder 131 and a mounting plate 132, the mounting plate 132 is fixedly connected to the second cylinders 143 of the plurality of first jaw assemblies 14, and the third cylinder 131 can drive the mounting plate 132 to move along the length direction of the detection plate 11.
In the implementation process, the second air cylinder 143 drives the first clamping block 141 to move towards the slide shoe seat on the detection flat plate 11, so that the first clamping block 141 is embedded with the slide shoe seat on the piston, and then the first driving assembly 13 drives the first jaw assembly 14 to move along the length direction of the detection flat plate 11, and drives the piston embedded with the first clamping block 141 to translate to the measurement station 16.
When the piston assembly moves to the measuring station 16, the piston assembly needs to be limited firstly, then clearance measurement is carried out, specifically, the piston is pressed from the front and rear directions through the second jaw assembly 41 and the baffle assembly 42, the piston is limited to move in the horizontal direction, the clearance value of the piston assembly is embodied in the vertical direction, and the piston assembly is enabled to measure the clearance value based on the detection plate 11 more accurately after limiting.
Further, as shown in fig. 11, the second jaw assembly 41 includes a mounting seat 411, a first power device 412 and a first sliding rail 413 which are disposed thereon, a sliding seat 414 slidably connected to the first sliding rail 413 is disposed on the first sliding rail 413, a second clamping block 415 is disposed at one end of the sliding seat 414 facing the baffle assembly 42, and the first power device 412 can drive the sliding seat 414 to move along a direction perpendicular to the detection flat plate 11 and drive the second clamping block 415 to approach or separate from the baffle assembly 42; the second clamping block 415 is concavely arranged towards one end of the baffle assembly 42 to form an arc-shaped opening. As shown in fig. 5 and 6, the baffle assembly 42 is disposed below the measuring station 16, and includes a fourth cylinder 421 and a limit baffle 422, and the fourth cylinder 421 can drive the limit baffle 422 to move in a direction perpendicular to the length direction of the detection plate 11 and toward or away from the second jaw assembly 41.
The second jaw assembly 41 is required to be moved to the piston engagement height in the vertical direction by the second drive assembly 43 after the piston assembly is engaged with the sensing plate 11 and the piston assembly is moved to the measuring station 16. As shown in fig. 10, the second driving assembly 43 includes a fixing frame 431, a second power device 432, and a lifting seat 433, wherein a second sliding rail 434 is disposed on the fixing frame 431 along a vertical direction, and the lifting seat 433 is slidably connected with the second sliding rail 434 and is driven to move along the vertical direction by the second power device 432; the plurality of second jaw assemblies 41 are arranged on the lifting seat 433 in parallel along the length direction of the detection flat plate 11, and a detachable cross plate 435 is arranged on the fixing frame 431 corresponding to the detection flat plate 11.
The second claw assembly 41 and the baffle assembly 42 are located at the same height, then the piston assembly located in the measuring tool is horizontally limited and clamped, then the clearance value is measured, in the clearance calculation process, the piston assembly matched with the detecting flat plate 11 is required to be pressed from the upper side and the lower side of the detecting flat plate 11 through the pressing assembly 21 and the upper top assembly 22 respectively, meanwhile, the play value of the piston assembly in the vertical direction is measured in different pressing states of the piston assembly twice, the thickness difference value of the detecting flat plate 11 and the swash plate is combined, and the clearance value of the piston assembly and the swash plate in the matching state is converted.
Specifically, as shown in fig. 7, the pressing component 21 includes a pressing head 211, a second connecting seat 212, a fifth cylinder 213 and a guide pillar 214, wherein the fifth cylinder 213 and the guide pillar 214 are arranged along the vertical direction, the fifth cylinder 213 is fixed on the support plate 23 above the detection platform 1, the guide pillar 214 is slidably connected with the support plate 23 and is respectively connected with two ends of the upper surface of the second connecting seat 212 with the output shaft of the fifth cylinder 213, and the pressing head 211 is fixed on the lower surface of the second connecting seat 212. As shown in fig. 8 and 9, the upper head assembly 22 includes a sixth air cylinder 221, a third connection seat 222, and an ejector pin 223, the ejector pin 223 being fixed to the top of the third connection seat 222 in a vertical direction and being driven to move in the vertical direction by the sixth air cylinder 221; the lower ram 211 and the ejector pin 223 are disposed opposite to each other and are movable in the same vertical direction. The displacement sensor 31 is disposed in the vertical direction and close to the jack 223, and the displacement sensor 31 is fixed to the fourth connecting seat 32 and is driven to move in the vertical direction by the seventh cylinder 33.
The invention also discloses a detection method applied to the compressor piston cylinder-in detection equipment, as shown in fig. 12 to 23, comprising the following steps:
s1: matching the piston with the two hemispherical shoes on a detection flat plate of a matching station, and translating to a measuring station;
s2: after the pushing component is driven to press the upper slipper seat of the piston from the upper side, the distance L between the upper slipper seat and the bottom of the piston is measured through the displacement sensor 1 ；
S3: after the pressing component is reset, the upper top component is driven to press the piston from the lower part, and then the distance L between the pressing component and the bottom of the piston is measured through the displacement sensor 2 ；
S4: the clearance value delta l of the piston assembly after being matched with the swash plate is calculated by the following formula:
Δl＝Δh-ΔL，
ΔL＝|L 1 -L 2 |，
Δh＝H 1 -H 2 ；，
wherein: h 1 To detect the thickness value of the flat plate, H 2 A swash plate thickness value measured by a swash plate detecting device;
s5: and comparing the calculated clearance value delta l with the set clearance to judge whether the matching is qualified or not.
In the specific embodiment of the above detection method, during the process of fitting the piston and the two hemispherical shoes on the detection plate 11 of the fitting station 15:
firstly, adjusting the spring plate assembly 17 to enable the limiting plate 171 on the detection flat plate 11 at the matching station 15 to sink to a certain depth for arranging the upper hemispherical slipper in the piston assembly, and particularly driving the limiting plate 171 to move through the first cylinder 172, as shown in fig. 12;
next, after the lower hemispherical shoe ratio is matched in the lower ball socket of the piston, as shown in fig. 13, the upper hemispherical shoe on the corresponding detection plate 11 of the piston is clamped and hung on the edge of the detection plate 11, as shown in fig. 14;
the mounting cross plate 435 prevents the piston from falling, as shown in fig. 15, the spring plate assembly 17 is adjusted to enable the limiting plate 171 to be lifted to be positioned on the same plane with the detection flat plate 11, so that the piston assembly can move conveniently;
the first jaw assembly 14 is driven to enable the first clamping block 141 to be embedded with the piston upper slipper seat, as shown in fig. 16, specifically, the second air cylinder 143 is used for driving the first clamping block 141 to move towards the piston upper slipper seat;
finally, the first driving assembly 13 drives the first jaw assembly 14 to move along the length direction of the detection plate 11, and drives the piston engaged with the first clamping block 141 to translate to the measuring station 16, as shown in fig. 17.
The measuring step begins after the piston has moved to the measuring station 16:
firstly, after the second jaw assembly 41 is driven to the height of the piston by the second driving assembly 43, the piston is pressed from the front-back direction by the second jaw assembly 41 in cooperation with the baffle assembly 42, so that the piston is limited from moving in the horizontal direction, and the piston is ensured to move only in the vertical direction;
next, after the upper shoe seat of the piston is pressed from above by the pressing down assembly, as shown in fig. 18, the distance L from the bottom of the piston is measured by a displacement sensor below the piston 1 As shown in fig. 21;
after the pressing component is reset and the upper top component is driven to press the piston from below, as shown in fig. 19, the distance L between the pressing component and the bottom of the piston is measured again through the displacement sensor 2 As shown in fig. 20 and 22;
and finally, taking the difference of the two distances, and calculating a clearance value delta l of the piston assembly after being matched with the swash plate by combining the thickness value of the detection flat plate and the thickness value of the swash plate.
Specifically, the gap value Δl is calculated by the following formula:
Δl＝Δh-ΔL，
ΔL＝|L 1 -L 2 |，
Δh＝H 1 -H 2 ；，
wherein: h 1 To detect the thickness value of the flat plate, H 2 As a swash plate thickness value measured by the swash plate detecting device, as shown in fig. 23;
after the calculation is completed, comparing the calculated clearance value Deltal with the set clearance, and judging whether the matching is qualified or not.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A compressor piston in-cylinder detection apparatus, comprising: the device comprises a storage rack, a swash plate detection device and a gap detection device, wherein the storage rack is used for placing pistons and hemispherical shoes, the swash plate detection device is used for detecting thickness values of the swash plate, the gap detection device is used for detecting gap values based on a detection flat plate (11) in a matched state of the pistons and the hemispherical shoes, and the actual gap values of the pistons matched with the hemispherical shoes and assembled on the swash plate are obtained by combining the swash plate thickness values measured by the swash plate detection device;
the gap detection device comprises a detection platform (1), a pressing mechanism (2), a distance measuring mechanism (3) and a limiting mechanism (4), wherein the detection platform (1) comprises a detection flat plate (11) and a plurality of detection stations (12) which are arranged in parallel along the length direction of the detection flat plate, the gap detection device further comprises a first driving assembly (13) and a plurality of first jaw assemblies (14), the first jaw assemblies (14) are arranged corresponding to the detection stations (12) and are driven by the first driving assembly (13) to move along the length direction of the detection flat plate (11), the detection stations (12) comprise a matching station (15) and a measuring station (16) which are arranged in parallel along the length direction of the detection flat plate (11), and the thickness of the detection flat plate (11) is identical to the design thickness of a swash plate;
the pressing mechanism (2) comprises a plurality of groups of pressing assemblies (21) and upper top assemblies (22) which are arranged corresponding to the detection stations (12), and the pressing assemblies (21) and the upper top assemblies (22) are respectively arranged above and below the measurement stations (16); the limiting mechanism (4) comprises a plurality of second jaw assemblies (41), a plurality of baffle assemblies (42) and a second driving assembly (43), the second jaw assemblies (41) and the baffle assemblies (42) are arranged corresponding to the measuring station (16), the second jaw assemblies (41) are driven by the second driving assembly (43) to move along the vertical direction, and the first jaw assemblies (14) and the second jaw assemblies (41) are respectively positioned on two sides of the detecting flat plate (11); the distance measuring mechanism (3) comprises a plurality of displacement sensors (31) arranged corresponding to the measuring stations (16), and the displacement sensors (31) are arranged below the measuring stations (16);
the elastic piece assembly (17) is arranged at the matching station (15) and comprises a limiting plate (171) and a first cylinder (172), one end of the limiting plate (171) is arranged in a round shape which is matched with the plane of the hemispherical slipper, and the other end of the limiting plate is driven to move along the vertical direction through the first cylinder (172) arranged below the detection plate (11);
and a limit groove (111) which is matched with the limit plate (171) is formed in the detection flat plate (11) corresponding to the matching station (15) in a penetrating way, and the round groove end of the limit groove (111) is close to the edge of the detection flat plate (11).
2. The compressor piston in-cylinder detection apparatus according to claim 1, wherein the first jaw assembly (14) includes a first clamping block (141), a first connection seat (142), and a second cylinder (143), the first clamping block (141) being fixed to an output shaft end portion of the second cylinder (143) through the first connection seat (142), the first clamping block (141) being driven by the second cylinder (143) to move in a direction perpendicular to a length direction of the detection plate (11) and toward or away from the detection plate (11);
the first clamping block (141) is far away from one end of the first connecting seat (142) and is provided with a first bayonet (141 a) in a concave manner, and the first bayonet (141 a) can be embedded with the piston upper slipper seat.
3. The compressor piston cylinder-in detection apparatus according to claim 2, wherein the first driving assembly (13) includes a third cylinder (131) and a mounting plate (132), the mounting plate (132) being fixedly connected to the second cylinders (143) of the plurality of first jaw assemblies (14), the third cylinder (131) being capable of driving the mounting plate (132) to move in a longitudinal direction of the detection plate (11).
4. Compressor piston in-cylinder detection apparatus according to claim 1, characterized in that the second jaw assembly (41) comprises a mounting seat (411) and a first power device (412) and a first sliding rail (413) arranged thereon, a sliding seat (414) slidingly connected with the first sliding rail (413) is arranged on the first sliding rail, a second clamping block (415) is arranged at one end of the sliding seat (414) towards the baffle assembly (42), and the first power device (412) can drive the sliding seat (414) to move along a direction perpendicular to the detection flat plate (11) and drive the second clamping block (415) to approach or separate towards the baffle assembly (42);
the second clamping block (415) is concavely arranged towards one end of the baffle assembly (42) to form an arc-shaped opening.
5. The compressor piston cylinder-in detection apparatus according to claim 4, wherein the second driving assembly (43) includes a fixing frame (431), a second power device (432), and a lifting base (433), a second slide rail (434) is provided on the fixing frame (431) in a vertical direction, and the lifting base (433) is slidably connected to the second slide rail (434) and is driven to move in a vertical direction by the second power device (432);
the second jaw assemblies (41) are arranged on the lifting seat (433) in parallel along the length direction of the detection flat plate (11), and a detachable transverse plate (435) is arranged on the fixing frame (431) corresponding to the detection flat plate (11).
6. The compressor piston in-cylinder detection apparatus according to claim 4, wherein the baffle assembly (42) is disposed below the measuring station (16) and includes a fourth cylinder (421) and a limit baffle (422), and the fourth cylinder (421) is capable of driving the limit baffle (422) to move in a direction perpendicular to the length direction of the detection plate (11) and toward or away from the second jaw assembly (41).
7. The compressor piston cylinder-in detection apparatus according to claim 1, wherein the pressing-down assembly (21) includes a pressing-down head (211), a second connecting seat (212), and a fifth cylinder (213) and a guide pillar (214) which are disposed along a vertical direction, the fifth cylinder (213) is fixed on a support plate (23) above the detection platform (1), the guide pillar (214) is slidably connected with the support plate (23) and is respectively connected with an output shaft of the fifth cylinder (213) at two ends of an upper surface of the second connecting seat (212), and the pressing-down head (211) is fixed on a lower surface of the second connecting seat (212).
8. The compressor piston-cylinder-in detection apparatus according to claim 7, wherein the upper head assembly (22) includes a sixth cylinder (221), a third connection seat (222), and a push rod (223), the push rod (223) being fixed to a top of the third connection seat (222) in a vertical direction and being driven to move in a vertical direction by the sixth cylinder (221);
the displacement sensor (31) is arranged along the vertical direction and close to the ejector rod (223), and the displacement sensor (31) is fixed on the fourth connecting seat (32) and driven to move along the vertical direction by the seventh air cylinder (33);
the lower pressure head (211) and the ejector rod (223) are arranged oppositely and can move along the same vertical direction.
9. The detection method of the compressor piston in-cylinder detection device, applied to the detection device according to any one of claims 1 to 8, is characterized by comprising the following steps:
s1: matching the piston with the two hemispherical shoes on a detection flat plate of a matching station, and translating to a measuring station;
s2: after the pushing component is driven to press the upper slipper seat of the piston from the upper side, the distance between the upper slipper seat and the bottom of the piston is measured through the displacement sensor；
S3: pressing componentThe piston is pressed by the upper top assembly from the lower part after being driven, and then the distance between the upper top assembly and the bottom of the piston is measured by the displacement sensor；
S4: the clearance value after the piston assembly is matched with the sloping cam plate is calculated through the following formula：
，
，
，
Wherein:for detecting the thickness value of the plate +.>A swash plate thickness value measured by a swash plate detecting device;
s5: according to the calculated gap valueAnd comparing with the set gap, and judging whether the matching is qualified or not.
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| KR100743834B1 (en) * | 2005-12-30 | 2007-07-30 | (주)윈텍 | Measuring device of swash plate for compressor |
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| CN210464337U (en) * | 2019-09-13 | 2020-05-05 | 上海圃丰自动化科技有限公司 | Semi-sphere selecting equipment for measuring gap between swash plate piston of compressor |
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| KR100743834B1 (en) * | 2005-12-30 | 2007-07-30 | (주)윈텍 | Measuring device of swash plate for compressor |
| CN102589394A (en) * | 2012-02-08 | 2012-07-18 | 浙江春晖空调压缩机有限公司 | Detection device of swash plate and piston axial matched gap and using method thereof |
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