Double-station detection equipment for RPR separator chamber detection

Abstract

The utility model discloses double-station detection equipment for RPR separator chamber detection, which comprises a rack, a bedplate transversely arranged on the rack, an air tightness leak detector, a touch central control screen and an air source processor arranged on the rack, the air source processor is connected with the air tightness leak detector, two detection tools are arranged on the bedplate, and the touch central control screen is arranged on the bedplate. The detection tool comprises a positioning sleeve, a servo sliding table and a buffer cylinder, the positioning sleeve is fixed on the bedplate, the servo sliding table is arranged on the bedplate, a sealing pressing plate is arranged on a sliding bedplate of the servo sliding table, an air passage connected with the airtightness leak detector is arranged in the sealing pressing plate, an air tap is arranged on the sealing pressing plate, the buffer cylinder is arranged on the bedplate, and the air tap is connected with the air tap. And a positioning block is movably arranged above the buffer cylinder. According to the utility model, RPR separator chambers of the same specification can be detected at two stations at the same time, RPR separator chambers of different specifications can also be detected at two stations at the same time, and whether inner discharge holes are qualified or not can be accurately detected through an exhaust method.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to a double-station detection equipment for detecting a chamber of an RPR separator. Background Art

[0002] When doing a rapid plasma reagin test (RPR), it is usually necessary to store plasma in an RPR separator, and then place the RPR separator on a testing machine for testing. Currently, the RPR separators on the market have two specifications: 30ml and 60ml. In order to ensure the accuracy of the test, it is necessary to ensure that the RPR separator has a high degree of sealing, and the sealing performance of the RPR separator is mainly determined by the RPR separator chamber. Therefore, when producing the RPR separator, it is necessary to perform an airtightness test on the RPR separator chamber. After the airtightness test on the RPR separator chamber, it is also necessary to test whether the two inner rows of holes on the inner cavity of the RPR separator chamber are qualified. At present, the air tightness detection equipment for RPR separator chambers on the market can complete the air tightness detection work well. However, since the RPR separator chamber has two specifications, the corresponding fixtures need to be replaced when the two specifications of the RPR separator chambers are tested separately. The replacement of the fixture is cumbersome, and the traditional fixture cannot detect the inner row of holes in the inner cavity. The staff needs to place it on another testing table for testing. However, the inner cavity of the RPR separator chamber is conical, which is not only inconvenient to fix, but also easy to cause inaccurate detection due to the small aperture of the inner row of holes. Utility Model Content

[0003] The utility model aims to provide a double-station detection device for detecting an RPR separator chamber. The double-station detection of the RPR separator chambers of the same specification can be performed by arranging positioning sleeves of the same size in two detection fixtures, and positioning sleeves of different sizes can be arranged in the two detection fixtures to realize synchronous detection of two RPR separator chambers of different specifications, and whether the inner row holes are qualified can be accurately checked by exhaust test.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a double-station detection equipment for RPR separator chamber detection, including: a frame, a table plate is placed horizontally on the frame, two airtight leak detectors and a touch central control screen are arranged on the frame, the touch central control screen is electrically connected to the two airtight leak detectors, an air source processor connected to the air source is arranged in the frame, two air pipes are arranged on the air outlet end of the air source processor, the two air pipes are respectively connected to the air inlet ends of the two airtight leak detectors, two detection fixtures are arranged on the table plate, and the detection fixtures include: a positioning sleeve, a servo slide and a buffer cylinder, a mounting hole is arranged on the table plate, and the positioning sleeve is passed through The bolts are fixed in the mounting holes, the servo slide is vertically arranged on the upper end wall of the table plate and is electrically connected to the touch central control screen, a sealing pressure plate is arranged on the slide plate of the servo slide, an air duct is arranged in the sealing pressure plate, one end of the air duct is connected to the air outlet end of the airtight leak detector, and the other end of the air duct is connected to the air return end of the airtight leak detector, an air nozzle connected to the air duct is sealed on the lower end wall of the sealing pressure plate, the air nozzle and the positioning sleeve are coaxially aligned up and down, the buffer cylinder is vertically arranged on the lower end wall of the table plate, an electromagnetic valve is arranged between the air source and the buffer cylinder, the electromagnetic valve is electrically connected to the touch central control screen, and a positioning block is movably arranged above the piston rod of the buffer cylinder.

[0005] Furthermore, in the aforementioned double-station detection equipment for RPR separator chamber detection, the positioning sleeve in the detection tooling has two specifications, one is that the large diameter end in the step through hole is adapted to the valve cover of the RPR separator chamber with a volume of 30 ml, and the other is that the large diameter end in the step through hole is adapted to the valve cover of the RPR separator chamber with a volume of 60 ml.

[0006] Furthermore, the aforementioned double-station detection equipment for RPR separator chamber detection, wherein a dustproof plate and a protective plate are arranged on the table, the protective plate is fixedly connected to the frame, the dustproof plate and the frame are detachably connected, two long holes are vertically arranged at both ends of the dustproof plate, the small diameter end of the long hole is located at the top, and the large diameter end of the long hole is located at the bottom, bolts are passed through the long holes, and the bolts are threadedly connected to the frame, and an LED fill light is arranged on the frame located inside the dustproof plate and the protective plate.

[0007] Furthermore, in the aforementioned dual-station detection equipment for RPR separator chamber detection, a main alarm light is provided on the top of the frame, and a sub-alarm light is provided next to each detection tooling, the two sub-alarm lights are not only electrically connected to the touch central control screen, but also electrically connected to the servo slide in the detection tooling on their respective corresponding sides, the solenoid valve on the buffer cylinder and the airtight leak detector, and the main alarm light is electrically connected to the two sub-alarm lights through the touch central control screen.

[0008] Furthermore, in the aforementioned dual-station detection equipment for detecting the RPR separator chamber, a sensor sheet is provided on the side wall of the slide plate, and an upper limit switch and a lower limit switch are provided on the servo slide on the same side as the sensor sheet, and both the upper limit switch and the lower limit switch are electrically connected to the touch central control screen.

[0009] Furthermore, in the aforementioned double-station detection equipment for detecting the RPR separator chamber, the specific connection structure between the buffer cylinder and the table plate is as follows: two fixed seats are arranged on the lower end wall of the table plate, a cylinder seat is arranged between the two fixed seats, the buffer cylinder is fixed on the cylinder seat, guide rods are slidably arranged in the cylinder seats located on both sides of the buffer cylinder, a mounting plate is arranged between the two guide rods, the mounting plate and the piston rod of the buffer cylinder are connected by a floating joint, and the positioning block is fixed on the mounting plate.

[0010] Furthermore, in the aforementioned double-station detection device for detecting the RPR separator chamber, three limit blocks are evenly distributed on the circumference of the upper end wall of the positioning block, and limit slots are left between the three limit blocks.

[0011] The advantages of the utility model are: double-station detection of RPR separator chambers of the same specification can be carried out by arranging positioning sleeves of the same size in two detection fixtures, and positioning sleeves of different sizes can be arranged in the two detection fixtures to realize synchronous detection of two RPR separator chambers of different specifications, and the positioning sleeves are connected to the table by bolts, which is convenient for replacement; the up and down displacement distance of the inner cavity of the RPR separator chamber can be accurately controlled by a servo motor, so that the two inner row holes on the inner cavity can be respectively aligned with the outer row holes on the valve cover, and the gas in the inner cavity will not be blocked when discharged to the outside, so that the touch central control screen can compare the detected exhaust time with the preset exhaust time of the qualified inner row holes to judge whether the inner row holes are qualified. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of a double-station detection device for RPR separator chamber detection described in the utility model.

[0013] Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure.

[0014] Figure 3 yes Figure 2 Schematic diagram of the structure of the detection tooling.

[0015] Figure 4 yes Figure 3 Schematic diagram of the cross-sectional structure.

[0016] Figure 5 It is a structural schematic diagram of the RPR separator chamber.

[0017] Figure 6 It is a schematic diagram of the structure of the RPR separator chamber after it is installed in the detection tooling. DETAILED DESCRIPTION

[0018] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and preferred embodiments.

[0019] like Figure 1 to Figure 6 As shown, the double-station detection device for RPR separator chamber detection described in the utility model comprises: a frame 1, a table 11 is horizontally placed on the frame 1, two airtight leak detectors 12 and a touch central control screen 13 are arranged on the frame 1, the airtight leak detectors 12 and the touch central control screen 13 are both prior art, the touch central control screen 13 is electrically connected to the two airtight leak detectors 12, an air source processor 14 connected to the air source is arranged in the frame 1, and two air source processors 14 are arranged on the air outlet end of the air source processor 14. The two air pipes are connected to the air inlet ends of the two airtight leak detectors 12 respectively. A dustproof plate 15 and a protective plate 16 connected to the frame 1 are arranged on the table 11. The protective plate 16 is fixedly connected to the frame 1. The dustproof plate 15 is detachably connected to the frame 1. Two long holes 151 are vertically arranged at both ends of the dustproof plate 15. The small diameter end of the long hole 151 is located at the top, and the large diameter end of the long hole 151 is located at the bottom. Bolts 1 are inserted into the long hole 151. 52, bolts 152 are threadedly connected to the frame 1, an LED fill light 17 is arranged on the frame 1 located inside the dustproof plate 15 and the protective plate 16, two detection fixtures 2 are arranged on the table 11, a main alarm light 18 is arranged on the top of the frame 1, and a sub-alarm light 19 is arranged next to each detection fixture 2. The two sub-alarm lights 19 are not only electrically connected to the touch central control screen 13, but also electrically connected to the detection fixtures 2 and the airtight leak detector 12 on their corresponding sides. The main alarm light 18 is electrically connected to the two sub-alarm lights 19 through the touch central control screen 13. When a certain detection fixture 2 fails, the sub-alarm light 19 corresponding to the failure and the main alarm light 18 will light up. The staff can know that the entire equipment has a fault by observing the main alarm light 18, and when performing maintenance, they can quickly determine which detection fixture 2 has a fault through the sub-alarm lights 19. Finally, the specific fault condition of the faulty detection fixture 2 can be known by touching the central control screen 13. When using the inspection tool 2 for inspection work, it is necessary to first remove the dustproof plate 15, and then turn on the LED fill light 17 to increase the brightness of the inspection area. When not performing inspection work, it is necessary to turn off the LED fill light 17 and reinstall the dustproof plate 15 for dust prevention.

[0020] The detection tooling 2 includes: a positioning sleeve 21, a servo slide 22 and a buffer cylinder 23. A mounting hole is set on the table 11. The positioning sleeve 21 is fixed in the mounting hole by bolts. A step through hole 211 is set in the positioning sleeve 21. The positioning sleeve 21 has two specifications. One specification is that the large diameter end of the step through hole 211 is adapted to the valve cover 31 of the RPR separator chamber 3 with a volume of 30ml, and the other specification is that the large diameter end of the step through hole 211 is adapted to the valve cover 31 of the RPR separator chamber 3 with a volume of 60ml. The servo slide 22 is vertically arranged at the upper end of the table 11. The servo slide 22 is provided with an induction sheet 222 on the side wall of the slide plate 221 of the servo slide 22, and an upper limit switch 223 and a lower limit switch 224 are provided on the servo slide 22 on the same side as the induction sheet 222. The upper limit switch 223 and the lower limit switch 224 are both electrically connected to the touch central control screen 13. When the upper limit switch 223 or the lower limit switch 224 senses the induction sheet 222 on the slide plate 221, the touch central control screen 13 can control the servo slide 22 to stop moving, preventing the slide plate 221 from moving upward or downward To prevent danger caused by excessive displacement, a sealing plate 225 is provided on the slide plate 221 of the servo slide 22, and an air channel 226 is provided in the sealing plate 225. One end of the air channel 226 is connected to the air outlet end of the airtight leak detector 12, and the other end of the air channel 226 is connected to the air return end of the airtight leak detector 12. A gas nozzle 24 connected to the air channel 226 is sealed on the lower end wall of the sealing plate 225. The gas nozzle 24 is coaxially aligned with the positioning sleeve 21 from top to bottom. Two fixing seats 231 are provided on the lower end wall of the table 11, and a cylinder seat 232 is provided between the two fixing seats 231. The punching cylinder 23 is fixed on the cylinder seat 232, and an electromagnetic valve is arranged between the buffer cylinder 23 and the air source. The electromagnetic valve is not shown in the figure. The electromagnetic valve is electrically connected to the touch central control screen 13. Guide rods 233 are slidably arranged in the cylinder seats 232 on both sides of the buffer cylinder 23. A mounting plate 234 is arranged between the two guide rods 233. The mounting plate 234 is connected to the piston rod of the buffer cylinder 23 through a floating joint 235. A positioning block 236 is arranged on the mounting plate 234, and three limit blocks are evenly distributed on the circumference of the upper end wall of the positioning block 236, and a limit slot is left between the three limit blocks.

[0021] The RPR separator chamber 3 includes: a valve cover 31, a piston shaft 32, an inner cavity 33 and a spring 34. The inner cavity 33 is slidingly sealed in the valve cover 31. An outer row of holes is provided on the side wall of the valve cover 31. Two inner row of holes of different sizes are provided on the upper and lower side walls of the inner cavity 33. The outer row of holes and the inner row of holes are located on the same side. The piston shaft 32 is connected to the inner cavity 33. The spring 34 is sleeved on the piston shaft 32 and abuts against the valve cover 31. When the spring 34 of the RPR separator chamber 3 is in an uncompressed state, the inner row of holes located below are opposite to the outer row of holes on the valve cover 31. When the RPR separator chamber 3 is connected to the shell to form the RPR separator, the piston shaft 32 is pushed to compress the spring 34. At this time, the outer row of holes on the valve cover 31 are staggered with the two inner row of holes on the inner cavity 33, so that the RPR separator chamber 3 remains sealed.

[0022] When the RPR separator chamber 3 needs to be inspected, the corresponding positioning sleeve 21 is first replaced according to the specifications of the RPR separator chamber 3 to be inspected. Since there are two inspection tools 2, when only one specification of the RPR separator chamber 3 is produced, the positioning sleeves 21 of the same specification can be installed in the two inspection tools 2, which can speed up the inspection efficiency. If two specifications of the RPR separator chamber 3 are generated at the same time, two positioning sleeves 21 of different specifications need to be installed in the two inspection tools 2, so that the RPR separator chambers 3 of the two specifications can be inspected. When the RPR separator chamber 3 is fixed in the positioning sleeve 21, the valve cover 31 on the RPR separator chamber 3 abuts against the step hole 211 of the positioning sleeve 21, and the buffer cylinder 23 drives the positioning block 236 to move upward, so that the three limit blocks of the positioning block 236 are plugged into the piston shaft 32 on the RPR separator chamber 3, and then the servo slide 22 is started, and the servo slide 22 drives the air nozzle 24 to move downward until the air nozzle 24 extends into the RPR separator chamber 3 and blocks the RPR separator chamber 3. When the air nozzle 24 blocks the RPR separator chamber 3 downward, it will cause downward pressure on the RPR separator chamber 3, forcing the inner cavity 33 to move downward. The air nozzle 24 will have a large impact force at the moment of contact with the RPR separator chamber 3, and the buffer cylinder 23 can play a buffering role. Then the buffer cylinder 23 drives the positioning block 236 to move downward and disengage from the piston shaft 32. The servo slide 22 drives the air nozzle 24 to continue to press down the inner cavity 33 in the RPR separator chamber 3, so that the two inner cavities on the inner cavity 33 are The row holes are staggered with the outer row holes of the valve cover 31. At this time, the inner cavity 33 of the RPR separator chamber 3 is in a sealed state. Then, the airtight leak detector 12 is controlled to run by touching the central control screen 13. The air source enters the airtight leak detector 12 after being filtered by the air source processor 14, and then enters the air passage 226 of the sealing pressure plate 225 from the airtight leak detector 12. Part of the gas in the air passage 226 returns to the airtight leak detector 12 without being discharged, and the other part of the gas is filled into the RPR separator chamber 3. According to the communicating vessel principle, the pressure value displayed on the airtight leak detector 12 is the pressure value in the RPR separator chamber 3. When the pressure value in the RPR separator chamber 3 reaches the detection value, stop inflating and let it stand for a while. If the pressure value on the airtight leak detector 12 does not change, it means that the sealing of the RPR separator chamber 3 is qualified. If the pressure value on the airtight leak detector 12 drops, it means that the sealing of the RPR separator chamber 3 is unqualified, and the corresponding sub-alarm light 19 will flash to indicate unqualified.

[0023] After the air tightness test of the RPR separator chamber 3 is qualified, it is necessary to test whether the two inner rows of holes of the RPR separator chamber 3 are qualified. The detection of whether the inner rows of holes are qualified is carried out by the exhaust method. First, the exhaust times S1 and S2 of the two qualified inner rows of holes when the inner cavity 33 is in a specific air pressure are set in the touch central control screen 13. The specific air pressure refers to the air pressure value used when detecting air tightness.

[0024] First, detect the aperture of the inner row of holes located at the top of the inner cavity 33. At this time, the servo motor 22 drives the air nozzle 24 to continue to push the inner cavity 33 of the RPR separator chamber 3 downward. The inner cavity 33 overcomes the spring 34 on the piston shaft 32 and moves downward to align the inner row of holes located at the top of the inner cavity 33 with the outer row of holes of the valve cover 31. The gas in the inner cavity 33 will be discharged outward from the relatively aligned inner and outer rows of holes. The exhaust time S1' of the RPR separator chamber 3 can be detected by touching the central control screen 13 in conjunction with the airtight leak detector 12. If S1'=S1, it means that the inner row of holes is qualified. If S1'≠S1, it means that the inner row of holes is unqualified, and the alarm light 19 will flash to indicate failure.

[0025] After measuring the inner row holes at the top, the servo motor 22 drives the air nozzle 24 to reset upward, and the inner cavity 33 of the RPR separator chamber 3 is reset synchronously under the elastic force of the spring 34, so that the outer row holes on the valve cover 31 are misaligned with the two inner row holes of the inner cavity 33, and then the inner cavity 33 is filled with gas and maintained at the set pressure. The servo motor 22 drives the air nozzle 24 to move upward, and the inner cavity 33 is reset upward under the elastic force of the spring 34. During the resetting process, the air nozzle 24 is always blocked on the inner cavity 33. When the inner cavity 33 As the air nozzle 24 returns upward until the spring 34 is not in a compressed state, the inner row of holes located below are aligned with the outer row of holes on the valve cover 31, and the gas in the inner cavity 33 will be discharged outward from the aligned inner row of holes and outer row of holes. The exhaust time S2' of the RPR separator chamber 3 can be detected by touching the central control screen 13 in conjunction with the airtightness leak detector 12. If S2'=S2, it means that the inner row of holes is qualified. If S2'≠S2, it means that the inner row of holes is unqualified, and the alarm light 19 will flash to indicate failure.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or replaced by equivalents, and any modification or equivalent replacement that does not depart from the spirit and scope of the utility model should be included in the scope of protection of the claims of the utility model.

Claims

1. Dual-station detection equipment for RPR separator chamber detection, including: A frame, a table is horizontally placed on the frame, characterized in that: two airtight leak detectors and a touch central control screen are arranged on the frame, the touch central control screen is electrically connected to the two airtight leak detectors, an air source processor connected to the air source is arranged in the frame, two air pipes are arranged on the air outlet end of the air source processor, the two air pipes are respectively connected to the air inlet ends of the two airtight leak detectors, two detection tools are arranged on the table, the detection tools include: a positioning sleeve, a servo slide and a buffer cylinder, a mounting hole is arranged on the table, the positioning sleeve is fixed in the mounting hole by bolts, and the servo slide is vertically arranged on the table The servo slide is provided with a sealing pressure plate on the slide plate, and an air duct is provided in the sealing pressure plate. One end of the air duct is connected to the air outlet end of the airtight leak detector, and the other end of the air duct is connected to the air return end of the airtight leak detector. An air nozzle connected to the air duct is sealed on the lower end wall of the sealing pressure plate, and the air nozzle and the positioning sleeve are coaxially aligned up and down. The buffer cylinder is vertically arranged on the lower end wall of the table, and an electromagnetic valve is arranged between the air source and the buffer cylinder, and the electromagnetic valve is electrically connected to the touch central control screen. A positioning block is movably provided above the piston rod of the buffer cylinder.

2. The dual-station detection device for RPR separator chamber detection according to claim 1 is characterized in that: There are two specifications of the positioning sleeve in the detection tooling, one is that the large diameter end in the step through hole is compatible with the valve cover of the RPR separator chamber with a volume of 30ml, and the other is that the large diameter end in the step through hole is compatible with the valve cover of the RPR separator chamber with a volume of 60ml.

3. The dual-station detection device for RPR separator chamber detection according to claim 1 is characterized in that: A dustproof plate and a protective plate are arranged on the table top. The protective plate is fixedly connected to the frame, and the dustproof plate and the frame are detachably connected. Two long holes are vertically arranged at both ends of the dustproof plate. The small diameter end of the long hole is located at the top, and the large diameter end of the long hole is located at the bottom. Bolts are passed through the long holes, and the bolts are threadedly connected to the frame. An LED fill light is arranged on the frame inside the dustproof plate and the protective plate.

4. The dual-station detection device for RPR separator chamber detection according to claim 1 is characterized in that: A main alarm light is set on the top of the frame, and a sub-alarm light is set next to each detection tooling. The two sub-alarm lights are not only electrically connected to the touch central control screen, but also electrically connected to the servo slide in the detection tooling on their corresponding sides, the solenoid valve on the buffer cylinder and the airtight leak detector. The main alarm light is electrically connected to the two sub-alarm lights through the touch central control screen.

5. The dual-station detection device for RPR separator chamber detection according to claim 4 is characterized in that: A sensing sheet is arranged on the side wall of the slide plate, and an upper limit switch and a lower limit switch are arranged on the servo slide on the same side as the sensing sheet, and both the upper limit switch and the lower limit switch are electrically connected to the touch central control screen.

6. The dual-station detection device for RPR separator chamber detection according to claim 1 is characterized in that: The specific connection structure between the buffer cylinder and the table plate is: two fixed seats are arranged on the lower end wall of the table plate, a cylinder seat is arranged between the two fixed seats, the buffer cylinder is fixed on the cylinder seat, guide rods are slidingly arranged in the cylinder seats located on both sides of the buffer cylinder, a mounting plate is arranged between the two guide rods, the mounting plate and the piston rod of the buffer cylinder are connected by a floating joint, and the positioning block is fixed on the mounting plate.

7. The dual-station detection device for RPR separator chamber detection according to claim 6 is characterized in that: Three limit blocks are evenly distributed on the circumference of the upper end wall of the positioning block, and limit slots are reserved between the three limit blocks.

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