CN202420780U - Automatic leak tester for hermetic connecting terminal of compressor - Google Patents
Automatic leak tester for hermetic connecting terminal of compressor Download PDFInfo
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- CN202420780U CN202420780U CN2011204676284U CN201120467628U CN202420780U CN 202420780 U CN202420780 U CN 202420780U CN 2011204676284 U CN2011204676284 U CN 2011204676284U CN 201120467628 U CN201120467628 U CN 201120467628U CN 202420780 U CN202420780 U CN 202420780U
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- 238000001514 detection method Methods 0.000 claims abstract description 52
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 238000012360 testing method Methods 0.000 claims description 19
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract 3
- 239000007789 gas Substances 0.000 description 15
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000006837 decompression Effects 0.000 description 2
- 238000012512 characterization method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000700 radioactive tracer Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The utility model discloses an automatic leak tester for a hermetic connecting terminal for a compressor, and belongs to an automatic leak tester for detecting the sealing performance of the connecting terminal of the compressor. The automatic leak tester comprises a rack (10), a workpiece clamping device, a charge coupled device (CCD) detection device, a programmable logic controller (PLC) control device (11) and a detection medium recovery and release device. The workpiece clamping device comprises a lower die table (2) and an upper die table (3), and a lower die (9) and an upper die (8) are arranged on the lower die table (2) and the upper die table (3) respectively, and are combined with a workpiece (13) to form an enclosed cavity. The air outlet end of a high-pressure air supply device of the detection medium recovery and release device is connected to a lower die position detection cavity (12). A low-pressure liquid supply device is a closed loop formed by a pressure air source, a pipeline, a detection liquid container (16) and an upper die position detection cavity (14). A PLC can be used for participating in control over the workpiece clamping device, the CCD detection device and the detection medium recovery and release device. The automatic leak tester has the advantages of detection accuracy, high automation degree, reduction in work hours and production cost saving.
Description
Technical field
The utility model relates to a kind of product quality checkout equipment and device, particularly belongs to a kind of compressor wiring terminal is carried out the machine that leaks hunting automatically that sealing property detects.
Background technology
Make the field at compressor at present; The means that are used to detect the connection terminal sealing property mainly are manual detections, and its principle of work is on a stationary platform, manually terminal to be detected are put into and are detected cup; To detect cup with manual work again screws; Open the air that hand valve feeds specific air pressure, filling detects liquid, has or not bubble or liquid to ooze out with visual observation then.Owing to whether leaking gas be difficult to observe, Gu and the bigger uncertainty of existence for little leakage situation with twenty-twenty vision detection sealed wiring terminal.In addition, described specific air pressure is to open through manual solenoid valve, does not have the equipment pressure holding function, thereby one minute detection of pressurize requires to be difficult to the realization of stablizing, continuing under specific air pressure.In a word, because whole testing process all needs artificial the completion, efficient is low, and labour intensity is big, and is difficult to obtain desirable detection effect.
The utility model content
The purpose of the utility model promptly is to provide a kind of compressor seal connection terminal machine that leaks hunting automatically, the version through optimizing leak-checking apparatus with take stored program control system, reach and improve characterization processes, improve the purpose that detects effect and detection efficiency.
The compressor seal connection terminal that the utility model the provided machine that leaks hunting automatically comprises clamping workpiece device, CCD pick-up unit, the PLC control device installed on frame and the frame, detects the medium draw off gear; It is characterized in that; Described clamping workpiece device comprises bed die platform and mold platform, and the mold platform is fixedly mounted on the frame, and the expansion link of bed die platform and pneumohydraulic pressure-cylinder connects; Pneumohydraulic pressure-cylinder is connected to pressure source through the up-down control electromagnetic valve, is controlled by the up-down control electromagnetic valve; Be respectively arranged with corresponding counterdie of upper-lower position and patrix on bed die platform and the mold platform, the size and shape of counterdie and patrix is corresponding with the size and shape of workpiece, and triplicity forms the chamber of sealing; Described CCD pick-up unit is made up of CCD detection head and mobile platform, and the CCD detection head is fixedly mounted on the mobile platform, and mobile platform is installed on the mold platform through slide mechanism and sliding rail; Described detection medium draw off gear is made up of high-pressure air feed device and low pressure liquid feed device, and wherein, the high-pressure air feed device comprises high-pressure solenoid valve and band gauge pressure switch, and inlet end connects high-pressure air source, and the outlet side is connected to counterdie position test chamber; The low pressure liquid feed device is the airtight loop that is formed by pressure air source, pipeline, detection liquid container, patrix position test chamber, pipeline be provided with the control detection flow to solenoid valve; Described PLC control device comprises counterdie to bit detector, counterdie high pressure gas detection device, PLC central processing unit, described counterdie to bit detector, counterdie high pressure gas detection device and above-mentioned up-down control electromagnetic valve, high-pressure solenoid valve, control detection flow to solenoid valve be connected with the PLC central processing unit respectively.
The compressor seal connection terminal that the utility model the provided machine that leaks hunting automatically; Its mode of leaking hunting is that gases at high pressure are added on connection terminal one side; Be counterdie position test chamber one side, observe the opposite side that detects connection terminal then, promptly whether test chamber one side in patrix position has bubble.At first, connection terminal is put into the counterdie of clamping workpiece device, start pneumohydraulic pressure-cylinder and drive the bed die platform and rise, counterdie is combined with patrix, form airtight chamber with wherein connection terminal.Then; The high-pressure air feed device of detection starting medium draw off gear and low pressure liquid feed device are delivered to counterdie position test chamber with gases at high pressure, after the atmospheric pressure value conformance with standard of detection gases at high pressure; Tracer liquid is added to patrix position test chamber; Whether have gas leakage, after the completion bed die platform is dropped to original position if observing each connection terminal through the CCD pick-up unit, accomplish the testing process of connection terminal.In the process, the startup of the detection of the up-down of pneumohydraulic pressure-cylinder, gases at high pressure atmospheric pressure value, detection medium draw off gear all realizes control automatically through the PLC control device.
The machine because compressor seal connection terminal disclosed in the utility model leaks hunting automatically; Adopt the CCD pick-up unit; Can the picture that connection terminal detects the position be amplified 10 times, be transferred to picture screen and observe, improve accuracy, the validity of observing gas leakage widely.In addition, adopt of the pneumatic closed realization robotization of clamping workpiece device, improved efficient greatly by counterdie and patrix.Owing to adopted Programmable Logic Controller PLC to participate in control clamping workpiece device, CCD pick-up unit, detect the medium draw off gear, whole detection operation is carried out effectively again.In sum, the utlity model has the good effect that detection is accurate, automaticity is high, reduce work hours and save production cost.
Description of drawings
Accompanying drawing partly discloses the specific embodiment of the utility model, wherein,
Fig. 1: the utility model general structure synoptic diagram;
Fig. 2: counterdie, patrix, the location of workpiece concern synoptic diagram;
Fig. 3: the utility model low-pressure pneumatic fundamental diagram;
Fig. 4: the utility model high-pressure pneumatic fundamental diagram;
Fig. 5: PLC control device workflow diagram.
Embodiment
As shown in Figure 1, the compressor seal connection terminal that the utility model the provided machine that leaks hunting automatically, its clamping workpiece device comprise bed die platform 2 and mold platform 3, and the mold platform is fixedly mounted on the frame 10, the expansion link connection of bed die platform and pneumohydraulic pressure-cylinder 1.Be respectively arranged with corresponding two rows of upper-lower position totally 10 counterdies 9 and patrix 8 on bed die platform and the mold platform.Obviously, the size and shape of counterdie and patrix should be corresponding with the size and shape of workpiece 13, as shown in Figure 2, and triplicity can form the chamber of sealing.
As shown in Figure 1, the described CCD pick-up unit of the utility model is made up of CCD detection head 5 and mobile platform 4.The CCD detection head is fixedly mounted on the mobile platform, and mobile platform then is installed on the mold platform 3 through slide mechanism 7 and sliding rail 6.Through the CCD pick-up unit, can the product image be amplified 10 times and pass on the picture screen, with convenient each sealed wiring terminal of observing whether gas leak phenomenon is arranged.Wherein, the CCD detection head can be purchased on market, and the design of slide mechanism and sliding rail also is to expect easily and realize with installing, so do not do too much explanation.
The described detection medium of the utility model draw off gear is made up of high-pressure air feed device and low pressure liquid feed device.As shown in Figure 3, the low pressure liquid feed device is the airtight loop that is formed by pressure air source, pipeline, detection liquid container 16, patrix position test chamber 14.Pressure air inserts through main pressure regulator valve 21, the pipeline that constitutes the loop be provided with the control detection flow to solenoid valve 30, comprise the 3rd solenoid valve 18, the 4th solenoid valve 15 and the 5th solenoid valve 23.In addition, for adjustment pressure needs, also be provided with No. two pressure regulator valves 17 and No. three pressure regulator valves 22 on the return.The pressure source of the described pneumohydraulic pressure-cylinder 1 of the utility model can utilize the pressure air source of above-mentioned low pressure liquid feed device; Pneumohydraulic pressure-cylinder is by 28 controls of up-down control electromagnetic valve; In embodiment as shown in Figure 3, up-down control electromagnetic valve 28 is meant second solenoid valve 19 and first solenoid valve 20.
As shown in Figure 4, the high-pressure air feed device comprises high-pressure solenoid valve 25 and band gauge pressure switch 24, and inlet end connects high-pressure air source, and the outlet side then is connected to counterdie position test chamber 12.
Pneumatic principle of work in the face of the utility model is described further down: pressure air starts first solenoid valve 20 and second solenoid valve 19 after stablizing through main pressure regulator valve 21, drives the pneumohydraulic pressure-cylinder action workpiece is locked; Start high-pressure solenoid valve 25, add high pressure in gas to the counterdie position test chamber 12, start the 3rd solenoid valve 18; Pressure air gets into through No. two pressure regulator valve 17 decompression backs and detects media Containers 16, starts the 4th solenoid valve 15 simultaneously, and the liquid that detects in the media Containers is pressed in the patrix position test chamber 14; Close the 3rd solenoid valve 18, the 4th solenoid valve 15 after 2 seconds, get into the pressurize program, implement to detect finish after; Let out and remove counterdie position test chamber 12 inner high voltage gases, start the 4th solenoid valve, the 5th solenoid valve, pressure air gets in the patrix test chamber after No. three pressure regulator valve 22 decompressions; To detect media fluid and push back in the detection media Containers, promptly accomplish the one-time detection cycle.
As shown in Figure 5, the described PLC control device 11 of the utility model comprises that counterdie is to bit detector 26, counterdie high pressure gas detection device 29, PLC central processing unit 27.Counterdie to bit detector 26, counterdie high pressure gas detection device 29 and above-mentioned up-down control electromagnetic valve 28, high-pressure solenoid valve 25, control detection flow to solenoid valve 30 be connected with the PLC central processing unit respectively.
All parts that constitute the described PLC control device of the utility model all can be buied on market, and its connection, installation, method of application also realize easily, do not do too much explanation.Its principle of work is following:
When counterdie puts detecting device and counterdie high pressure gas detection device in place when detecting signal; Enabling signal and detected air pressure value are passed to the PLC central processing unit; Whether the PLC central processing unit sends to band gauge pressure switch testing with the detected air pressure value and meets the requirements, when reaching the standard value of setting as if the detected air pressure value, and PLC central processing unit control clamping workpiece device, CCD pick-up unit and detection medium draw off gear; Completion is accomplished whole testing process to pressurize, detection, the release step of workpiece; When if the detected air pressure value does not reach the standard value of setting, state before PLC central processing unit control clamping workpiece device and the release of detection medium draw off gear are got back to and started.
Claims (3)
1. compressor seal connection terminal machine that leaks hunting automatically comprises clamping workpiece device, CCD pick-up unit, the PLC control device (11) installed on frame (10) and the frame, detects the medium draw off gear; It is characterized in that; Described clamping workpiece device comprises bed die platform (2) and mold platform (3); The mold platform is fixedly mounted on the frame; The expansion link of bed die platform and pneumohydraulic pressure-cylinder (1) connects, and pneumohydraulic pressure-cylinder is connected to pressure source through up-down control electromagnetic valve (28), is controlled by the up-down control electromagnetic valve; Be respectively arranged with corresponding counterdie of upper-lower position (9) and patrix (8) on bed die platform and the mold platform, the size and shape of the same workpiece of size and shape (13) of counterdie and patrix is corresponding, and triplicity forms the chamber of sealing; Described CCD pick-up unit is made up of CCD detection head (5) and mobile platform (4), and the CCD detection head is fixedly mounted on the mobile platform, and mobile platform is installed on the mold platform through slide mechanism (7) and sliding rail (6); Described detection medium draw off gear is made up of high-pressure air feed device and low pressure liquid feed device, and wherein, the high-pressure air feed device comprises high-pressure solenoid valve (25) and band gauge pressure switch (24), and inlet end connects high-pressure air source, and the outlet side is connected to counterdie position test chamber (12); The low pressure liquid feed device is the airtight loop that is formed by pressure air source, pipeline, detection liquid container (16), patrix position test chamber (14), pipeline be provided with the control detection flow to solenoid valve (30); Described PLC control device comprises counterdie to bit detector (26), counterdie high pressure gas detection device (29), PLC central processing unit (27), described counterdie to bit detector, counterdie high pressure gas detection device and above-mentioned up-down control electromagnetic valve, high-pressure solenoid valve, control detection flow to solenoid valve be connected with the PLC central processing unit respectively.
2. the compressor seal connection terminal according to claim 1 machine that leaks hunting automatically, its characteristic also is, in the described low pressure liquid feed device; Pressure air source inserts through main pressure regulator valve (21); Pipeline be provided with the control detection flow to solenoid valve, comprise the 3rd solenoid valve (18) and the 5th solenoid valve (23), also be provided with No. two pressure regulator valves (17) and No. three pressure regulator valves (22) on the pipeline; Wherein, The 3rd solenoid valve (18) is connected with No. two pressure regulator valves (17), and the 5th solenoid valve (23) is connected with No. three pressure regulator valves (22), and the 4th solenoid valve (15) places and detects between liquid container (16) and the patrix position test chamber (14).
3. the compressor seal connection terminal according to claim 2 machine that leaks hunting automatically; Its characteristic also is; The pressure source of described pneumohydraulic pressure-cylinder (1) is the pressure air source of low pressure liquid feed device; Pneumohydraulic pressure-cylinder is by the control of up-down control electromagnetic valve, and described up-down control electromagnetic valve is meant second solenoid valve (19) and first solenoid valve (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204676284U CN202420780U (en) | 2011-10-31 | 2011-10-31 | Automatic leak tester for hermetic connecting terminal of compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204676284U CN202420780U (en) | 2011-10-31 | 2011-10-31 | Automatic leak tester for hermetic connecting terminal of compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202420780U true CN202420780U (en) | 2012-09-05 |
Family
ID=46745535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204676284U Withdrawn - After Issue CN202420780U (en) | 2011-10-31 | 2011-10-31 | Automatic leak tester for hermetic connecting terminal of compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202420780U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620894A (en) * | 2011-10-31 | 2012-08-01 | 日照汇丰电子有限公司 | Automatic leakage-detecting machine for sealed connecting terminal of compressor |
| CN102998065A (en) * | 2012-12-18 | 2013-03-27 | 重庆百吉四兴压铸有限公司 | General air tightness detection device |
| CN105396799A (en) * | 2015-12-14 | 2016-03-16 | 苏州源硕精密模具有限公司 | Both-way binding post detecting and removing device for air conditioner compressor |
-
2011
- 2011-10-31 CN CN2011204676284U patent/CN202420780U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620894A (en) * | 2011-10-31 | 2012-08-01 | 日照汇丰电子有限公司 | Automatic leakage-detecting machine for sealed connecting terminal of compressor |
| CN102620894B (en) * | 2011-10-31 | 2015-07-08 | 日照汇丰电子有限公司 | Automatic leakage-detecting machine for sealed connecting terminal of compressor |
| CN102998065A (en) * | 2012-12-18 | 2013-03-27 | 重庆百吉四兴压铸有限公司 | General air tightness detection device |
| CN105396799A (en) * | 2015-12-14 | 2016-03-16 | 苏州源硕精密模具有限公司 | Both-way binding post detecting and removing device for air conditioner compressor |
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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: 20120905 Effective date of abandoning: 20150708 |
|
| RGAV | Abandon patent right to avoid regrant |