CN203518912U - Detection device for detecting fit clearance between piston and connecting rod - Google Patents
Detection device for detecting fit clearance between piston and connecting rod Download PDFInfo
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- CN203518912U CN203518912U CN201320539909.5U CN201320539909U CN203518912U CN 203518912 U CN203518912 U CN 203518912U CN 201320539909 U CN201320539909 U CN 201320539909U CN 203518912 U CN203518912 U CN 203518912U
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- connecting rod
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- detection
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Abstract
The utility model discloses a detection device for detecting fit clearance between a piston and a connecting rod. The device comprises a clamping mechanism, a locking mechanism, a measuring mechanism, and a support. The clamping mechanism comprises a clamping cylinder and jaw assemblies clamping a piston. The locking mechanism comprises a locking chuck. An end of the locking chuck is provided with a groove used to embed the connecting rod. A lower end of the groove is provided with a slot which is fastened with a lower ball joint. The other end of the locking chuck is fixedly connected with an upper end of a locking pull rod. A tensioning weight is hung on a lower end of the locking pull rod. The measuring mechanism comprises a dial indicator detecting up-and-down displacement of the locking chuck. A measuring head of the dial indicator is abutted against the locking chuck. The support is provided with a limiting plate. The limiting plate is fixed with a guiding sleeve, and a lower end of the locking pull rod passes through the guiding sleeve. The detection device for detecting fit clearance between a piston and a connecting rod can complete measurement of the piston and the connecting rod in high efficiency and high precision, and can effectively improve production efficiency of a vehicle air-conditioning compressor.
Description
Technical field
The utility model relates to a kind of pick-up unit for detection of tolerance clearance between piston and connecting rod, is more specifically the piston used of a kind of automobile air conditioner compressor and the pick-up unit of connecting rod axial fit clearance, belongs to automobile air conditioner compressor manufacturing technology field.
Background technology
Existing automobile air conditioner compressor generally uses piston and connecting rod, and in the operation process of automobile air conditioner compressor, piston and connecting rod will bear the effect of moment of torsion, if piston and connecting rod axial fit clearance are excessive, piston rod easily comes off; If piston and connecting rod axial fit clearance are too small, piston and connecting rod easily wear and tear or abnormal sound; Thereby the end play quality of fit of piston and connecting rod is had relatively high expectations.
Detection to the quality of fit of piston and connecting rod in existing conventional art, adopt the mode that under no-load condition, height gauge is checked, but this traditional detection method has very large defect, is first to keep connecting rod efficiency vertical with piston low, and testing result is unstable; Next is the detection data under no-load condition, does not meet working condition, and detecting data does not have cogency.
Thereby develop and meet under working condition, the piston that detection efficiency is high, accuracy of detection is high and connecting rod axial gap device, be the direction that all automobile air conditioner compressor manufacture those skilled in the art make great efforts.
Summary of the invention
The utility model is mainly to solve existing technical matters in above-mentioned existing automobile air conditioner compressor manufacture, and a kind of pick-up unit for detection of tolerance clearance between piston and connecting rod is provided.
The technical solution adopted in the utility model is, construct a kind of pick-up unit for detection of the tolerance clearance between piston and connecting rod, described connecting rod comprises bulb and lower bulb, upper bulb activity is embedded in the recess on piston, and described pick-up unit comprises clamp system, latch mechanism, measuring mechanism, support.
Described clamp system comprises clamping cylinder and jaw components, described jaw components clamping piston, and described jaw components comprises left jamming claw and right jamming claw.
Described latch mechanism comprises horizontally disposed locking chuck, the locking pull bar vertically arranging and tension counterweight, one end of described locking chuck is provided with for being embedded with the groove of described connecting rod, described groove lower end is provided with the recess being interlocked with lower bulb, the other end of described locking chuck is fixedly connected with the upper end of locking pull bar, and described counterweight is suspended on the lower end of described locking pull bar.
Described measuring mechanism comprises the dial gauge that detects locking chuck upper and lower displacement amount, and the measuring head of described dial gauge is resisted against on locking chuck, and described dial gauge is fixed on locking side plate end face by dial indicator bracket.
Described support is provided with a limiting plate, is fixed with orienting sleeve on limiting plate, and the lower end of locking pull bar is slidably through above-mentioned orienting sleeve.
Described in the utility model a kind of for detection of piston and connecting rod between in the pick-up unit of tolerance clearance, on described support, be also provided with the piston fixed block that limited piston moves.
Described in the utility model a kind of for detection of piston and connecting rod between in the pick-up unit of tolerance clearance, described locking rod outer sleeve has back-moving spring.
Described in the utility model a kind of for detection of piston and connecting rod between in the pick-up unit of tolerance clearance, between described counterweight and locking pull bar, be also provided with limitation lock and strain at the set lever that bar moves up and down, described set lever comprises eccentric wheel and handle.
Further, described in the utility model a kind of for detection of piston and connecting rod between in the pick-up unit of tolerance clearance, described eccentric wheel is provided with eccentric connecting hole and the fixing threaded hole of counterweight, in described connecting hole, be inserted with the latch of fixing and locking pull bar, described connecting hole center and the line in described eccentric wheel axle center and the angle of described handle axis are 120 degree.
Further, described in the utility model a kind of for detection of piston and connecting rod between in the pick-up unit of tolerance clearance, the lower end of described limiting plate is fixed with for holding out against the locking support cover of set lever, and described locking pull bar passes from the through hole of described locking support cover.
Described in the utility model a kind of for detection of piston and connecting rod between in the pick-up unit of tolerance clearance, the bottom of described groove is arc surface and forms and be slidably matched with described connecting rod.
Further, described in the utility model a kind of for detection of piston and connecting rod between in the pick-up unit of tolerance clearance, described locking pull bar is provided with the step of using to spring axial limiting.
A kind of pick-up unit for detection of tolerance clearance between piston and connecting rod that the utility model provides, can high-level efficiency and high-precisionly complete piston and connecting rod tolerance clearance is measured, and has effectively improved automobile air conditioner compressor production efficiency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is Fig. 1 side view.
Fig. 3 is set lever structural representation in Fig. 1.
Fig. 4 is set lever structure vertical view in Fig. 1.
In figure: 1, support, 2, triangle support plate, 3, limiting plate, 4, set lever, 5, locking support cover, 6, orienting sleeve, 7, spring, 8, locking pull bar, 9, locking chuck, 10, piston fixed block, 11, locking side plate, 12, right jamming claw, 13, left jamming claw, 14, piston rod, 15, dial indicator bracket, 16, latch, 17, dial gauge, 18, fixed head, 19, latch, 20, counterweight, 21, cylinder, 22, piston, 23, connecting rod, 401, eccentric wheel, 402, handle.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail.
Embodiment 1
As depicted in figs. 1 and 2, comprise fixed head 17, locking side plate 11 and the limiting plate 3 being fixed on support 1; The piston rod 14 being connected with described clamping cylinder 21 is connected with jaw components by latch 16, and described jaw components comprises left jamming claw 13 and right jamming claw 12, and described cylinder 21 drives piston rod 14 control opening of above-mentioned jaw components or tighten up;
On described jaw components, be fixed wtih described piston 22, the upper bulb activity of described connecting rod 23 is embedded in the recess on piston, the link rod part of described connecting rod 23 embed described locking chuck sidewall groove in, described groove lower end is provided with the recess being interlocked with lower bulb, the other end of described locking chuck is fixedly connected with the upper end of locking pull bar 8, and described counterweight 20 is suspended on the lower end of described locking pull bar 8;
Described measuring mechanism comprises the dial gauge 17 that detects locking chuck upper and lower displacement amount, and the measuring head of described dial gauge 17 is resisted against on locking chuck, and described dial gauge 17 is fixed on locking side plate 11 end faces by dial indicator bracket 15.
On the limiting plate 3 arranging on described support 1, be fixed with orienting sleeve 6, the lower end of locking pull bar 8 is slidably through above-mentioned orienting sleeve 6, and described limiting plate 3 belows have also been provided with the triangle support plate 2 that supports fixation.
Principle of work of the present utility model or implementation step are:
The first step, first according to theoretical value, calculate when piston 22 and the theoretical fit-up gap of connecting rod 23 are zero, locking chuck 9 upper surfaces are to the theoretical relative distance of the dial gauge 17 of fixed position, and the theoretical relative distance that the measuring head of dial gauge 17 be take is now initial point or zero point.
Second step, the piston that the left jamming claw 13 that clamping cylinder 21 controls are opened and right jamming claw 12 lockings assemble and the piston 22 in connecting rod assembly, meanwhile, the link rod part of connecting rod 23 is inserted in the groove of locking chuck 9.
The 3rd step, is suspended and fixed to counterweight 20 below of set lever 4, and under Action of Gravity Field, now locking chuck 9 declines and Compress Springs, and the lower bulb of connecting rod 23 holds out against the recess that groove lower end is connected with locking chuck 9 lower surfaces.
The 4th step, record dial gauge now the measured dial gauge 17 of measuring head to the relative distance of the upper surface of locking chuck 9, and by this relative distance, deduct theoretical relative distance and can obtain the maximum axial fit-up gap between piston and connecting rod; Actual use in dial gauge measuring process, adjusts dial gauge 17 using theoretical relative distance as zero point or starting point, can measure rapidly maximum axial fit-up gap and whether meet tolerance.
The 5th step, control cylinder 21, unclamps left jamming claw 13 and right jamming claw 12, takes off piston and linkage component, and repetitive cycling is also carried out next one operation.
Embodiment 2
In conjunction with the embodiments 1, as depicted in figs. 1 and 2, of the present utility model a kind of for detection of piston and connecting rod between in the pick-up unit of tolerance clearance, on described support 1, be also provided with the piston fixed block 10 that limited piston 22 is displaced sideways.
In conjunction with the embodiments 1, as depicted in figs. 1 and 2, of the present utility model a kind of for detection of piston and connecting rod between in the pick-up unit of tolerance clearance, described locking pull bar 8 overcoats have back-moving spring 7.
In conjunction with the embodiments 1, as Figure 1-4, of the present utility model a kind of for detection of piston and connecting rod between in the pick-up unit of tolerance clearance, between described counterweight 20 and locking pull bar 8, be also provided with limitation lock and strain at the set lever 4 that bar 8 moves up and down, described set lever 4 comprises eccentric wheel 401 and handle 402, and described eccentric wheel 401 is connected with described locking pull bar 8 lower ends by latch 19;
The principle of work of set lever 4 is in changing the process of piston 22 and connecting rod 23 assembly parts, utilize the dead point of eccentric wheel 401, counterweight 20 is locked on locking support cover 5 together with locking pull bar 8, locking chuck 9 and spring 7, and need to be in not changing the process of piston 22 and connecting rod 23 parts, constantly repeated removal or fixedly counterweight 20.
In conjunction with the embodiments 1, as Figure 1-4, of the present utility model a kind of for detection of piston and connecting rod between in the pick-up unit of tolerance clearance, described eccentric wheel 401 is provided with eccentric connecting hole and the fixing threaded hole of counterweight 20, in described connecting hole, be inserted with the latch 19 of fixing and locking pull bar, described connecting hole is 120 degree to the line of described eccentric wheel axis and the angle of described handle axis.
In conjunction with the embodiments 1, as Figure 1-4, of the present utility model a kind of for detection of piston and connecting rod between in the pick-up unit of tolerance clearance, the lower end of described limiting plate 3 is fixed with for holding out against the locking support cover 5 of set lever, and described locking pull bar 8 slidably passes from the through hole of described locking support cover 5.
In conjunction with the embodiments 1, as shown in Figure 1-2, of the present utility model a kind of for detection of piston and connecting rod between in the pick-up unit of tolerance clearance, the bottom of described groove is arc surface and forms and be slidably matched with described connecting rod 23.
In conjunction with the embodiments 1, as shown in Figure 1-2, of the present utility model a kind of for detection of piston and connecting rod between in the pick-up unit of tolerance clearance, described locking pull bar 8 is provided with the step of using to spring 7 axial limitings.
It should be pointed out that above embodiment is only the more representational example of the utility model.Obviously, the utility model is not limited to above-described embodiment, can also have many distortion.Any simple modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment, all should think and belong to protection domain of the present utility model.
Claims (8)
1. the pick-up unit for detection of tolerance clearance between piston and connecting rod, described connecting rod comprises bulb and lower bulb, upper bulb activity is embedded in the recess on piston, it is characterized in that, described pick-up unit comprises clamp system, latch mechanism, measuring mechanism, support;
Described clamp system comprises clamping cylinder and jaw components, described jaw components clamping piston;
Described latch mechanism comprises horizontally disposed locking chuck, the locking pull bar vertically arranging and tension counterweight, one end of described locking chuck is provided with for embedding the groove of described connecting rod, described groove lower end is provided with the recess being interlocked with described lower bulb, the other end of described locking chuck is fixedly connected with the upper end of described locking pull bar, and described tension counterweight is suspended on the lower end of described locking pull bar;
Described measuring mechanism comprises the dial gauge that detects locking chuck upper and lower displacement amount, and the measuring head of described dial gauge is resisted against on locking chuck;
Described support is provided with a limiting plate, is fixed with orienting sleeve on limiting plate, and the lower end of locking pull bar is through above-mentioned orienting sleeve.
2. a kind of pick-up unit for detection of tolerance clearance between piston and connecting rod as claimed in claim 1, is characterized in that being also provided with on described support the piston fixed block that limited piston is displaced sideways.
3. a kind of pick-up unit for detection of tolerance clearance between piston and connecting rod as claimed in claim 1, is characterized in that described locking rod outer sleeve has back-moving spring.
4. a kind of pick-up unit for detection of tolerance clearance between piston and connecting rod as claimed in claim 1, it is characterized in that between described counterweight and locking pull bar, being also provided with limitation lock strains at the set lever that bar moves up and down, described set lever comprises eccentric wheel and handle.
5. a kind of pick-up unit for detection of tolerance clearance between piston and connecting rod as claimed in claim 4, it is characterized in that described eccentric wheel is provided with eccentric connecting hole and the fixing threaded hole of counterweight, in described connecting hole, be inserted with the latch of fixing and locking pull bar, described connecting hole is 120 degree to the line of described eccentric wheel axis and the angle of described handle axis.
6. a kind of pick-up unit for detection of tolerance clearance between piston and connecting rod as described in claim 1 or 4, the lower end that it is characterized in that described limiting plate is fixed with for holding out against the locking support cover of set lever, and described locking pull bar passes from the through hole of described locking support cover.
7. a kind of pick-up unit for detection of tolerance clearance between piston and connecting rod as claimed in claim 1, is characterized in that described groove has horn opening, and the bottom of described groove is arc surface and forms and be slidably matched with described connecting rod.
8. a kind of pick-up unit for detection of tolerance clearance between piston and connecting rod as described in claim 1 or 3, is characterized in that described locking pull bar is provided with the step of using to spring axial limiting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320539909.5U CN203518912U (en) | 2013-09-02 | 2013-09-02 | Detection device for detecting fit clearance between piston and connecting rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320539909.5U CN203518912U (en) | 2013-09-02 | 2013-09-02 | Detection device for detecting fit clearance between piston and connecting rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203518912U true CN203518912U (en) | 2014-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320539909.5U Withdrawn - After Issue CN203518912U (en) | 2013-09-02 | 2013-09-02 | Detection device for detecting fit clearance between piston and connecting rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203518912U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104422375A (en) * | 2013-09-02 | 2015-03-18 | 浙江易之星空调科技有限公司 | Detection device for detecting fit clearance between piston and connecting rod |
| CN106768199A (en) * | 2016-11-26 | 2017-05-31 | 丹东意邦计量仪器仪表有限公司 | The manual ratchet meter-clamping apparatus of high-pressure water-filling meter epitope mimic well flip-shell |
-
2013
- 2013-09-02 CN CN201320539909.5U patent/CN203518912U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104422375A (en) * | 2013-09-02 | 2015-03-18 | 浙江易之星空调科技有限公司 | Detection device for detecting fit clearance between piston and connecting rod |
| CN104422375B (en) * | 2013-09-02 | 2017-04-12 | 浙江易之星空调科技有限公司 | Detection device for detecting fit clearance between piston and connecting rod |
| CN106768199A (en) * | 2016-11-26 | 2017-05-31 | 丹东意邦计量仪器仪表有限公司 | The manual ratchet meter-clamping apparatus of high-pressure water-filling meter epitope mimic well flip-shell |
| CN106768199B (en) * | 2016-11-26 | 2023-11-10 | 丹东意邦计量仪器仪表有限公司 | Flip type manual ratchet meter clamping device for high-pressure water injection meter epitope simulation well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140402 Effective date of abandoning: 20170412 |
|
| AV01 | Patent right actively abandoned |