WO2023000609A1 - 氦检装置及氦检设备 - Google Patents
氦检装置及氦检设备 Download PDFInfo
- Publication number
- WO2023000609A1 WO2023000609A1 PCT/CN2021/140324 CN2021140324W WO2023000609A1 WO 2023000609 A1 WO2023000609 A1 WO 2023000609A1 CN 2021140324 W CN2021140324 W CN 2021140324W WO 2023000609 A1 WO2023000609 A1 WO 2023000609A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- helium
- injection
- detection device
- station
- sealing nozzle
- Prior art date
Links
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 title claims abstract description 320
- 239000001307 helium Substances 0.000 title claims abstract description 319
- 229910052734 helium Inorganic materials 0.000 title claims abstract description 319
- 238000001514 detection method Methods 0.000 title claims abstract description 71
- 238000002347 injection Methods 0.000 claims abstract description 228
- 239000007924 injection Substances 0.000 claims abstract description 228
- 238000007789 sealing Methods 0.000 claims abstract description 189
- 230000007246 mechanism Effects 0.000 claims abstract description 133
- 239000007789 gas Substances 0.000 claims description 39
- 238000011084 recovery Methods 0.000 claims description 36
- 238000002955 isolation Methods 0.000 claims description 28
- 230000000903 blocking effect Effects 0.000 claims description 12
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 7
- 238000012546 transfer Methods 0.000 claims description 7
- 230000005484 gravity Effects 0.000 claims description 5
- 230000036316 preload Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 description 12
- 238000004064 recycling Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- 238000007599 discharging Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 238000005086 pumping Methods 0.000 description 6
- 238000007689 inspection Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000012864 cross contamination Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
- G01M3/22—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
- G01M3/226—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for containers, e.g. radiators
- G01M3/229—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for containers, e.g. radiators removably mounted in a test cell
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Definitions
- the present application relates to the technical field of air tightness detection, in particular to a helium detection device and helium detection equipment.
- helium testing is a common means of air tightness testing.
- operations such as filling helium and recovering helium into the product to be inspected in the vacuum chamber are required.
- the end of the helium injection tube is generally plugged with a sealing nozzle, so that the helium injection tube can be sealed well with the helium injection port of the product to be tested, so as to ensure the sealing of the helium injection process.
- Sealing nozzles are generally formed of flexible materials such as silica gel and rubber, and will need to be replaced due to material fatigue failure after repeated use. At present, the sealing nozzle is usually replaced manually. However, the manual replacement method is inefficient and will affect the normal production schedule.
- the existing helium detection equipment needs to be equipped with complex pipelines to realize connection and control on-off.
- Complex pipelines lead to complex structures, and redundant pipelines are prone to adsorb a large amount of helium, which affects the accuracy of helium detection.
- a technical solution adopted by this application is to provide a helium detection device, comprising:
- the helium injection mechanism includes a helium injection tube arranged at the helium injection station, and the sealing nozzle can be inserted into one end of the helium injection tube;
- the replacement mechanism includes a discharge assembly located at the feeding station and a recovery assembly located at the recovery station, the discharge assembly is used to output the sealing nozzle, and the recovery assembly is used to pick up the sealing nozzle; and
- the clamping mechanism includes a clamping assembly, which can clamp or release the sealing nozzle, and the clamping assembly can move to the helium injection station, the discharge station and the recovery station, To replace the sealing nozzle plugged into the helium injection tube.
- the finger clamping mechanism has a first station and a second station spaced apart, and the clamping assembly is provided on the first station and the second station, The clamping assembly located at the second station is used to obtain the sealing nozzle output by the discharge assembly, and transfer the sealing nozzle to the helium injection tube, and the clamping assembly located at the first station is used to Obtain the sealing nozzle plugged into the helium injection tube, and transfer the sealing nozzle to the recovery component.
- the clamping assembly can drive the clamped sealing nozzle to move axially along the helium injection tube, so as to insert the sealing nozzle into the helium injection tube or remove the sealing nozzle from the injection tube. One end of the helium tube is pulled out.
- the clamping assembly includes a pillar and jaws, the pillar can support the sealing nozzle, and the jaws are arranged around the circumference of the pillar and can be opened or closed.
- the clamping finger mechanism further includes a lifting component, and the lifting component can drive the clamping component to lift up and down along the axial direction of the pillar, so that the sealing mouth can extend into or out of the clamping jaw.
- the discharge assembly includes:
- a discharge pipe for storing sealing nozzles one end of the discharge pipe is provided with a discharge port, a plurality of sealing nozzles are stacked on the discharge pipe, and can slide down to the discharge port under the action of gravity;
- the switch part has a blocking state that prevents the sealing nozzle from sliding out of the discharge port and an open state that allows the sealing nozzle to slide out from the discharge port, and the switching part can be in the blocking state and the opening state switch between.
- the switch member includes a top block and a discharge cylinder
- the top block is arranged at the driving end of the discharge cylinder and slidably penetrates the side wall of the discharge pipe, so The discharge cylinder can drive the top block into or out of the discharge pipe, so that the switch element can be switched between the blocking state and the opening state.
- the side wall of the end of the discharge pipe away from the discharge port is provided with a feed port
- the inner wall of the feed port is provided with a latch
- the sealing nozzle passes through the
- the groove on the sealing nozzle forms a shelter for the plug.
- the recovery assembly includes a suction part, and the suction part can suck and release the sealing nozzle.
- the finger clamping mechanism can move to the helium injection station, the discharging station and the recycling station driven by the driving mechanism.
- the working station, the lower cavity mechanism is linked with the finger gripping mechanism, and can move to the helium injection station driven by the driving mechanism.
- the helium injection mechanism further includes an isolation valve, one end of the helium injection tube is provided with an injection port, and the isolation valve is fixed on the end of the helium injection tube away from the injection port and is connected with the helium injection tube.
- the helium injection pipe is communicated;
- the helium detection device also includes a four-position two-way valve, which has an air inlet and four air outlets, and the air inlet can alternately communicate with the four air outlets;
- the gas inlet is connected to the helium injection pipe through the isolation valve, and the four gas outlets are respectively used to connect with a helium filling device, a helium returning device, a vacuum pumping device and a vacuum breaking device.
- the helium injection mechanism includes a fixed seat, the helium injection tube is mounted on the fixed seat, and the helium injection tube can be moved along the longitudinal axis of the injection port relative to the fixed seat. telescopic.
- the helium injection mechanism includes a mounting plate and an elastic member, the mounting plate is slidably mounted on the fixing seat along the longitudinal axis of the injection port, and the helium injection tube is fixedly arranged
- the elastic member provides elastic force to the mounting plate away from the fixing seat along the longitudinal axis of the injection port.
- the elastic member is a compression spring, and the preload of the compression spring is adjustable.
- the helium injection tube is a metal tubular structure.
- the helium injection mechanism further includes a pressure gauge and a three-way block, and the helium injection pipe, the isolation valve, and the pressure gauge are respectively communicated with the three ports of the three-way block.
- the four-position two-way valve is a solenoid valve.
- there are multiple helium injection mechanisms two adjacent helium injection mechanisms communicate through the isolation valve, and the air inlet is connected to the isolation valve of one of the helium injection mechanisms. connect.
- the gas connection block has a first gas connection, a second gas connection and a third gas connection, and the third gas connection is connected to one of the helium injection mechanisms.
- the isolating valve connected with the said first gas joint and the said second gas joint are respectively connected with the said air inlet and the said isolating valve of the adjacent said helium injection mechanism.
- a technical solution adopted in the present application is to provide a helium detection device, including the helium detection device as described in any one of the above preferred embodiments.
- the clamping mechanism can firstly make the clamping component enter the helium injection station, and the clamping component can exchange the sealing nozzle with the helium injection tube, and the old one inserted into the helium injection tube can be replaced.
- the holding assembly can capture and clamp the new sealing nozzle output by the discharge assembly. It can be seen that the removal of the old sealing mouth and the installation of the new sealing mouth do not rely on manual work. Therefore, the above-mentioned helium detection device can realize the automatic replacement of the sealing nozzle, thereby significantly improving the replacement efficiency of the sealing nozzle.
- the above-mentioned helium detection equipment uses a four-position two-way valve to connect the helium injection mechanism with the helium filling device, the helium return device, the vacuum device and the vacuum breaking device, and through the state switching of the four-position two-way valve, helium filling and helium return are realized.
- Vacuum pumping and vacuum breaking operations it can significantly reduce the pipeline.
- the isolation valve is directly connected with the helium injection pipe, which can further reduce pipelines.
- the reduction of the pipeline structure can simplify the structure of the helium injection mechanism and facilitate maintenance. More importantly, fewer pipeline structures can also significantly reduce the adsorption of helium, thereby improving the accuracy of helium detection.
- Fig. 1 is the left side view of the helium detection device in the preferred embodiment of the present application
- Fig. 2 is the front view of the discharge assembly in the helium detection device shown in Fig. 1;
- Fig. 3 is the front view of the clamping finger mechanism and the lower cavity mechanism in the helium detection device shown in Fig. 1;
- Fig. 4 is a top view of the finger clamp mechanism and the lower cavity mechanism shown in Fig. 3;
- Fig. 5 is a left view of the finger clamp mechanism and the lower cavity mechanism shown in Fig. 3;
- Figure 6 is a schematic structural view of a sealing nozzle in an embodiment of the present application.
- Fig. 7 is a left view of the helium injection mechanism in the helium detection device shown in Fig. 1;
- Figure 8 is a rear view of the helium injection mechanism shown in Figure 7;
- Fig. 9 is a rear view of a helium injection mechanism in another embodiment of the present application.
- a helium detection device 10a in a preferred embodiment of the present application includes a helium injection mechanism 100a, a replacement mechanism 200a and a finger clamping mechanism 300a.
- the helium injection mechanism 100a includes a helium injection tube 110a arranged at a helium injection station.
- the helium injection tube 110a is generally a metal tubular structure, and is used to inject helium gas into the workpiece to be tested, such as a prismatic battery.
- the helium detection device 10a further includes a lower cavity mechanism 500a.
- the lower cavity mechanism 500a includes a vacuum box 510a and a jacking cylinder 520a, and the square battery is placed in the vacuum box 510a.
- the jacking cylinder 520a drives the vacuum box 510a and the prismatic battery inside to rise until the helium injection tube 110a is docked with the helium injection port on the prismatic battery.
- the sealing mouth 20a is a cylindrical structure with both ends open, which is generally formed of flexible materials such as silica gel and rubber.
- the replacement mechanism 200a includes a discharge assembly 210a and a recovery assembly 220a.
- the discharging assembly 210a is arranged at the feeding station, and is used for outputting the sealing mouth 20a;
- the recycling assembly 220a is arranged at the recycling assembly 220a of the recycling station, and is used for picking up the sealing mouth 20a.
- the sealing nozzle 20a output by the discharging component 210a is a new sealing nozzle
- the sealing nozzle 20a picked up by the recycling component 220a is an old sealing nozzle.
- the discharge assembly 210a includes a discharge pipe 211a and a switch member 212a. in:
- the discharge pipe 211a is generally a strip-shaped tubular structure, which can be formed by metal, plastic and other materials.
- the discharge pipe 211a is used to store the sealing nozzle 20a.
- One end of the discharge pipe 211a is provided with a discharge port (not shown in the figure), and the discharge port is the output end of the discharge assembly 210a.
- a plurality of sealing nozzles 20a are stacked on the discharge pipe 211a, and can slide down to the discharge port under the action of gravity.
- the discharge pipe 211a is generally a cylindrical pipe with a smooth inner wall and a plurality of sealing nozzles 20a stacked along the extending direction of the discharge pipe 211a.
- the discharge pipe 211a extends vertically, so the sealing nozzle 20a stored therein can slide down to the discharge port under the action of gravity, thereby realizing output.
- the switch part 212a is used to control whether the sealing nozzle 20a is output from the discharge pipe 211a.
- the switch member 212a has a blocking state and an open state, and can be switched between the blocking state and the open state. In the blocking state, the switch member 212a can prevent the sealing nozzle 20a from sliding out of the discharge port, and in the open state, the switch member 212a allows the sealing nozzle 20a to slide out of the discharge port. Therefore, when it is necessary to output the sealing nozzle 20a, it is sufficient to switch the switch member 212a to an open state. At this time, the sealing nozzle 20a can slide down to the discharge port under the action of gravity without any other driving elements, which helps to simplify the structure of the discharge assembly 210a and the process of realizing the discharge of the sealing nozzle 20a.
- the discharge assembly 210a can also use other methods such as piston push type, screw feed type, etc. to realize the output of the sealing nozzle 20a.
- the switch member 212a includes a top block 2121a and a discharge cylinder 2122a.
- the top block 2121a is arranged at the driving end of the discharge cylinder 2122a and is slidably passed through the side wall of the discharge pipe 211a.
- the discharge cylinder 2122a can drive the top block 2121a into or out of the discharge pipe 211a, so that the switch 212a Toggles between blocked and open states.
- a through hole can be opened on the side wall of the discharge pipe 211a for installing the top block 2121a, and the discharge cylinder 2122a can be fixed relative to the discharge pipe 211a through a cylinder mounting plate (not shown).
- the discharge cylinder 2122a stretches out, which can drive the top block 2121a to withstand the sealing nozzle 20a in the discharge pipe 211a, so as to prevent it from sliding down from the discharge port, and the switch part 212a is in a blocking state at this time; Drive the top block 2121a back, at this time the sealing nozzle 20a can slide down from the discharge port, and the switch part 212a is in an open state.
- a sensor (not shown) can also be arranged near the discharge port, and the sensor can detect the movement of the sealing nozzle 20a in the discharge pipe 211a.
- the switch member 212a When the switch member 212a is switched to an open state and a sealing nozzle 20a falls from the discharge port, the sensor will detect the action of the sealing nozzle 20a in the discharge pipe 211a. At this time, the discharge cylinder 2122a can be stretched out again, and the switch member 212a is switched to a blocking state.
- the switch member 212a may also be other structures such as a baffle plate and a solenoid valve.
- the side wall of the discharge pipe 211a away from the discharge port is provided with a feed port 2111a, and the inner wall of the feed port 2111a is provided with a latch 2112a, and the sealing nozzle 20a passes through the feed port according to a preset direction.
- the groove 21a on the sealing nozzle 20a forms a shelter for the plug pin 2112a.
- the sealing mouth 20a has a groove 21a, and the groove 21a deviates from the middle of the sealing mouth 20a.
- the groove 21a just avoids the latch pin 2112a, so the sealing nozzle 20a can smoothly enter the discharging pipe 211a.
- the pin 2112a will block the sealing mouth 20a, so that it cannot be smoothly put into the discharge pipe 211a. In this way, all the sealing nozzles 20a put into the discharge pipe 211a can only pass through the feed opening 2111a according to the preset orientation, so as to realize fool-proofing.
- the recovery assembly 220a includes a suction piece, which can suck and release the sealing mouth 20a.
- the suction part can be a vacuum suction head, and the recovery component 220a can suck and release the sealing nozzle 20a by vacuumizing and breaking the vacuum on the suction part, which is easy to operate.
- the recovery component 220a can also pick up the sealing nozzle 20a by means of clamping or the like.
- the clamping finger mechanism 300a includes a clamping assembly 310a capable of clamping or releasing the sealing mouth 20a.
- the clamping assembly 310a can be in various ways, such as jaw type, hoop type, buckle type and so on. Please refer to FIG. 3 together.
- the clamping assembly 310a includes a pillar 311a and a jaw 312a.
- the pillar 311a can support the sealing nozzle 20a.
- the jaw 312a is arranged around the circumference of the pillar 311a and can be opened. or collapse.
- the jaws 312a can be controlled by the jaw cylinder, and the opening or closing of the jaws 312a can be realized by controlling air intake or exhaust.
- the pillar 311a is generally consistent with the extending direction of the helium injection tube 110a.
- a protruding post (not shown in the figure) is provided on the top of the supporting post 311a, and the protruding post can be inserted into the sealing mouth 20a, so as to limit the sealing mouth 20a.
- the support 311a cooperates with the clamping claw 312a, which can improve the clamping effect on the sealing mouth 20a, and can adjust the position of the sealing mouth 20a on the clamping assembly 310a.
- the inner wall of the jaw 312a is also provided with a protrusion (not shown).
- the protruding portion can cooperate with the groove 21a, so as to ensure that the sealing mouth 20a is stable and reliable when clamped by the clamping assembly 310a.
- clamping assembly 310a can be moved to the helium injection station, the material discharge station and the recovery station, so as to replace the sealing nozzle 20a inserted into the helium injection pipe 110a.
- the holding assembly 310a can exchange the sealing nozzle 20a with the helium injection pipe 110a, the discharge assembly 210a and the recovery assembly 220a respectively.
- the clamping assembly 310a clamps the sealing nozzle 20a
- the old sealing nozzle 20a on the helium injection pipe 110a can be pulled out by driving the sealing nozzle 20a away from the helium injection pipe 110a; the clamping assembly 310a can also be Drive the sealing nozzle 20a to move towards the helium injection tube 110a until the new sealing nozzle 20a clamped on it is plugged into the helium injection tube 110a, and then the clamping component 310a releases the sealing nozzle 20a and moves away from the helium injection tube 110a.
- the clamping assembly 310a can move to complete docking with the discharge assembly 210a, and clamp the new sealing nozzle 20a output by the discharge assembly 210a. And at the recycling station, the clamping component 310a can drive the clamped old sealing nozzle 20a towards the recycling component 220a, and then release the sealing nozzle 20a to be picked up by the recycling component 220a.
- the clamping assembly 310a can drive the clamped sealing nozzle 20a to move axially along the helium injection pipe 110a, so as to insert the sealing nozzle 20a into the helium injection pipe 110a or to separate the sealing nozzle 20a from the helium injection pipe 110a. pull out one end.
- the sealing mouth 20a can maintain a straight up and down movement line during the installation and disassembly process, thereby preventing the sealing mouth 20a from being damaged due to excessive extrusion during the installation and disassembly process.
- the clamping finger mechanism 300a further includes an elevating assembly 320a, which can drive the clamping assembly 310a to elevate along the axial direction of the pillar 311a, so that the sealing mouth 20a extends into or exits the jaw 312a.
- the lifting assembly 320a drives the clamping assembly 310a to rise until the sealing nozzle 20a extends into the clamping jaw 312a and is carried on the clamping assembly 310a. Strut 311a. Next, the clamping jaws 312a are closed, and the lifting component 320a drives the clamping component 310a to descend.
- the lifting assembly 320a first drives the holding assembly 310a up until the helium injection pipe 110a is inserted into the sealing nozzle 20a. Then, the clamping jaws 312a are opened, the lifting component 320a drives the clamping component 310a to descend and the sealing nozzle 20a is withdrawn from the range of the clamping jaws 312a.
- structures such as a multi-degree-of-freedom manipulator may also be used instead of the lifting assembly 320a.
- Corresponding driving structures may be provided in the clamping finger mechanism 300a, so as to drive the clamping assembly 310a to flow among the helium injection station, the discharge station and the recovery station.
- an additional driving structure may also be provided to drive the clamping finger mechanism 300a to circulate among the helium injection station, the discharge station and the recovery station as a whole.
- the helium detection device 10a further includes a driving mechanism 400a.
- the finger clamping mechanism 300a can move to a helium injection station, a material discharge station and a recovery station.
- the driving mechanism 400a may be composed of power elements such as motors, cylinders, and electric cylinders and their matching transmission elements.
- the driving mechanism 400a includes a servo motor (not shown in the figure), an electric cylinder (not shown in the figure) and a moving plate 410a, and the servo motor and the electric cylinder jointly drive the moving plate 410a to move along a preset direction.
- the finger clamping mechanism 300a is disposed on the moving plate 410a and can move along with the moving plate 410a. In this way, the structure of the finger clamp mechanism 300a itself can be simplified.
- the finger clamping mechanism 300a is also provided with a waste box 330a.
- the driving mechanism 400a drives the finger gripping mechanism 300a to the feeding station
- the waste box 330a is aligned with the recycling assembly 220a.
- the recovery component 220a releases the picked sealing nozzle 20a, so that the old sealing nozzle 20a falls into the waste box 330a.
- the waste box 330a may not be provided, and the recovery component 220a may be a vacuum suction pipeline connected to the box, and the sucked old sealing nozzle 20a is directly sucked into the box.
- the lower cavity mechanism 500a is linked with the gripper mechanism 300a, and can move to the helium injection station driven by the drive mechanism 400a.
- the lower cavity mechanism 500a is fixedly arranged on the moving plate 410a.
- the clamping finger mechanism 300a enters the helium injection station driven by the drive mechanism 400a
- the lower cavity mechanism 500a automatically exits the helium injection station. That is to say, driven by the driving mechanism 400a, the lower chamber mechanism 500a and the finger gripping mechanism 300a can only alternately enter the helium injection station at the same time, so as to avoid mutual interference between the two.
- the lower cavity mechanism 500a further includes a support plate 530a and a guide rod 540a.
- One end of the guide rod 540a is fixed on the mounting plate of the driving mechanism 400a, and the support plate 530a is mounted on the guide rod 540a through a linear bearing, so that the support plate 530a slides along the extending direction of the guide rod 540a.
- the vacuum box 510a is fixed on the support plate 530a.
- the jacking cylinder 520a is transmission-connected with the support plate 530a, and can drive the support plate 530a to slide along the guide rod 540a, thereby driving the vacuum box 510a up and down.
- the lower cavity mechanism 500a further includes a stop screw 550a. After the vacuum box 510a is raised to a position, the stopper screw 550a can fix the vacuum box 510a, so as to maintain the stability of the helium injection process.
- the clamping mechanism 300a has a first station 301a and a second station 302a spaced apart, and the first station 301a and the second station 302a are provided with clips.
- Holding assembly 310a, the holding assembly 310a located at the second station 302a is used to obtain the sealing nozzle 20a output by the discharge assembly 210a, and transfer the sealing nozzle 20a to the helium injection tube 110a
- the holding assembly located at the first station 301a 310a is used to obtain the sealing nozzle 20a inserted into the helium injection pipe 110a, and transfer the sealing nozzle 20a to the recovery component 220a.
- the clamping finger mechanism 300a enters the helium injection station driven by the driving mechanism 400a, and aligns the clamping assembly 310a located at the first station 301a with the end of the helium injection tube 110a;
- the lifting assembly 320a lifts up the clamping assembly 310a, the pillar 311a of the clamping assembly 310a of the first station 301a supports the sealing nozzle 20a, the jaws 312a close together and clamp the sealing nozzle 20a; finally, the lifting assembly 320a shrinks Back, the clamping assembly 310a is driven to move downward, and the old sealing nozzle 20a can be pulled out.
- the clamping finger mechanism 300a is driven by the driving mechanism 400a to the recovery station, and the clamping assembly 310a located at the first station 301a is aligned with the recovery assembly 220a;
- the holding assembly 310a is jacked up until the old sealing mouth 20a is sent to the recovery assembly 220a; then, the jaws 312a are opened, and the lifting assembly 320a is retracted to drive the clamping assembly 310a to move downward, so that the old sealing mouth 20a can be removed. Transfer to recovery assembly 220a for recovery.
- the clamping finger mechanism 300a is driven by the driving mechanism 400a to the feeding station, and the clamping assembly 310a located at the second station 302a is aligned with the output end of the discharging assembly 210a; the new The sealing nozzle 20a drops from the discharge pipe 211a onto the pillar 311a of the second station 302a, and the clamping jaws 312a close together to clamp it, so as to realize the feeding of a new sealing nozzle 20a;
- the clamping finger mechanism 300a enters the helium injection station driven by the drive mechanism 400a, and aligns the clamping assembly 310a at the second station 302a with the end of the helium injection tube 110a;
- the component 320a lifts the clamping component 310a until the clamped new sealing nozzle 20a is plugged into the helium injection tube 110a; then, the clamping jaws 312a are opened and the lifting component 320a is retracted, driving the clamping component 310a to Moving down, a new sealing nozzle 20a can be installed on the end of the helium injection pipe 110a.
- the clamping finger mechanism 300a can be brought to the feeding station, and the new sealing nozzle 20a can be transferred to the clamping assembly 310a at the second station 302a.
- the driving mechanism 400a directly drives the clamping assembly 310a at the second station 302a and the end of the helium injection tube 110a align.
- the lifting assembly 320a and the clamping assembly 310a operate to install a new sealing nozzle 20a on the end of the helium injection pipe 110a. In this way, the stroke of the driving mechanism 400a during the replacement of the sealing nozzle 20a can be reduced, which helps to further improve the efficiency.
- the clamping assembly 310a on the first station 301a can also be used to replace the new sealing nozzle 20a, and the clamping assembly 310a on the second station 302a can be used to replace the old one.
- Recovery of the sealing nozzle 20a when the upper clamping assembly 310a on the first station 301a is accepting the new sealing nozzle 20a, the clamping assembly 310a on the second station 302a can transfer the old sealing nozzle 20a to the recovery assembly 220a, Therefore, the efficiency of sealing nozzle replacement can be further improved.
- only one clamping assembly 310a may be provided on the clamping finger mechanism 300a, and the same clamping assembly 310a performs pulling out of the old sealing mouth 20a and installation of the new sealing mouth 20a.
- the clamping finger mechanism 300a can first make the clamping assembly 310a enter the helium injection station, and the clamping assembly 310a can replace the sealing nozzle 20a with the helium injection tube 110a, and the inserting
- the old sealing nozzle 20a connected to the helium injection pipe 110a is removed, and a new sealing nozzle 20a can also be reinstalled on the helium injection pipe 110a;
- the clamping assembly 310a can release the old sealing nozzle 20a and put it Hand over to the recovery component 220a; and at the discharging station, the clamping component 310a can acquire and clamp the new sealing nozzle 20a output by the discharging component 210a.
- the above-mentioned helium detection device 10a can realize the automatic replacement of the sealing nozzle 20a, thereby significantly improving the replacement efficiency of the sealing nozzle 20a.
- the present application provides a helium detection device (not shown in the figure), and the helium detection device includes a helium injection mechanism 100a.
- the above-mentioned helium detection device also includes a helium filling device (not shown in the figure), a helium return device (not shown in the figure), a vacuum pumping device (not shown in the figure) and a vacuum breaking device (not shown in the figure).
- the vacuuming device evacuates the vacuum box used to load the workpiece to be tested to form a vacuum environment; the helium filling device provides helium, and injects helium into the workpiece to be tested located in the vacuum box through the helium injection mechanism 100a, such as square In the shell battery; after holding the pressure for a preset time, the helium return device will recover the helium in the workpiece, and detect the air tightness of the workpiece by calculating the concentration of helium in the vacuum box; after the detection is completed, the vacuum breaking device will make the vacuum The air pressure in the box is restored.
- the vacuum breaking device is a muffler.
- the helium detection device in a preferred embodiment of the present application includes a helium injection mechanism 100 a and a four-position two-way valve 200 . in:
- the helium injection mechanism 100 a includes a helium injection tube 110 a and an isolation valve 120 .
- the helium injection tube 110a is generally a bar-shaped tubular structure with both ends opened.
- One end of the helium injection pipe 110a is provided with an injection port (not shown in the figure), and the injection port can be connected with the helium injection port of the workpiece to be detected.
- the blocking valve 120 is fixed on the end of the helium injection pipe 110a away from the injection port and communicates with the helium injection pipe 110a.
- the helium gas provided by the helium injection mechanism enters the helium injection pipe 110a through the isolation valve 120, and is injected into the workpiece to be inspected through the injection port of the helium injection pipe 110a. Then, the isolation valve 120 is closed, so that the workpiece to be detected injected with helium can be kept under pressure.
- a helium injection sealing nozzle 20a is installed on the injection port, and the helium injection sealing nozzle 20a may be a member formed by flexible materials such as rubber and silica gel.
- the helium injection sealing nozzle 20a can be elastically deformed by extrusion to fill the gap between the injection port and the helium injection port, thereby achieving a better sealing effect.
- the helium injection pipe 110a is a metal tubular structure.
- the helium injection tube 110a can be formed by metal materials such as stainless steel.
- the metal tubular structure has strong mechanical strength, which can prevent the helium injection tube 110a from being deformed during the helium injection process.
- the metal tubular structure can also effectively reduce the phenomenon of helium absorption and helium storage in the helium injection tube 110a, thereby improving the accuracy of helium detection.
- the helium injection mechanism 100 a further includes a pressure gauge 160 and a tee block 170 , and the helium injection pipe 110 a , the isolation valve 120 and the pressure gauge 160 communicate with the three ports of the tee block 170 respectively.
- the tee block 170 is a hollow block structure with three ports, and is generally formed of metal.
- the pressure gauge 160 can detect the air pressure in the workpiece to be detected, so as to facilitate the control of the amount of helium gas filled in the workpiece to be detected.
- the helium injection pipe 110a, the isolation valve 120 and the pressure gauge 160 are directly connected through the tee block 170, and there is no need for additional pipelines to communicate with each other, so the adsorption of helium can be further reduced.
- the four-position two-way valve 200 has an air inlet 210 and four air outlets 220 , and the air inlet 210 can alternately communicate with the four air outlets 220 .
- the four-position two-way valve 200 has four switch states. In a specific switch state, one air outlet 220 corresponding to the air inlet 210 is connected and isolated from other air outlets 220 . Further, the four-position two-way valve 200 is reversely connected, the air inlet 210 is connected to the helium injection pipe 110a through the isolation valve 120, and the four gas outlets 220 are respectively connected to the helium filling device, the helium returning device, the vacuum pumping device and the vacuum breaking device. device connection.
- the helium detection equipment generally has a supporting top plate 30 , and the four-position two-way valve 200 and the helium injection mechanism 100 a can be fixed on the surface of the top plate 30 .
- the air inlet 210 of the four-position two-way valve 200 can be connected with the isolation valve 120 through a pipeline (not shown in the figure).
- the isolation valve 120 is directly communicated with the helium injection pipe 110a, which can further reduce pipelines.
- the reduction of pipeline structure can reduce the adsorption of helium, thereby improving the accuracy of helium detection.
- the four-position two-way valve 200 is a solenoid valve. Therefore, the switch state of the four-position two-way valve 200 can be switched by inputting different electrical signals, so the response is quick and the switch is convenient. Obviously, the switch state of the four-position two-way valve 200 can also be switched through mechanical control.
- the helium injection mechanism 100a includes a fixed seat 130, the helium injection tube 110a is installed on the fixed seat 130, and the helium injection tube 110a can be stretched and contracted along the longitudinal axis of the injection port relative to the fixed seat 130 .
- the fixing base 130 plays a supporting role and can be fixedly installed on the top plate 30 of the helium detection device.
- the helium injection pipe 110a When the helium detection equipment is working, the helium injection pipe 110a generally extends vertically, so the longitudinal axis direction of the injection port is the up-down direction shown in FIG. 7 .
- the vacuum box located at the lower part of the helium injection mechanism 100a is lifted up until the helium injection port of the workpiece to be inspected inside is docked with the injection port of the helium injection pipe 110a. Since the helium injection tube 110a can be stretched. Therefore, when the helium injection port abuts against the injection port, the helium injection tube 110a will be forced to retract, thereby avoiding damage to the helium injection tube 110a and the workpiece to be tested due to hard contact between the helium injection tube 110a and the helium injection port.
- the helium injection mechanism 100a also includes a mounting plate 140 and an elastic member 150, the mounting plate 140 is slidably mounted on the fixing seat 130 along the longitudinal axis of the injection port, and the helium injection tube 110a is fixedly arranged on the mounting plate 140.
- the plate 140 and the longitudinal axis of the elastic member 150 provide an elastic force away from the fixing seat 130 to the mounting plate 140 .
- the mounting plate 140 is slidably mounted on the fixing seat 130 through the cooperation of the guide rail and the slider, and the guide rail extends along the up and down direction shown in FIG. 7 . Moreover, under the action of the elastic force of the elastic member 150 , the helium injection port can be effectively attached to the injection port, thereby further improving the sealing effect between the two.
- the helium injection tube 110a can also be stretched elastically in other ways.
- an elastically deformable corrugated section is provided on the helium injection pipe 110a.
- a cylinder is provided, the cylinder is fixed on the fixed seat 130 , and the helium injection tube 110 a is fixed on the driving end of the cylinder, so that the helium injection tube 110 a expands and contracts relative to the fixed seat 130 .
- the elastic member 150 is a compression spring, and the preload of the compression spring is adjustable. Specifically, the compression spring is clamped between the fixing seat 130 and the mounting plate 140 . When the helium injection port abuts against the injection port, the helium injection tube 110a will be forced to retract, thereby further compressing the compression spring. By adjusting the preload of the compression spring, the elastic restoring force provided by the elastic member 150 can be adjusted, so that the tightness between the helium injection port and the injection port can be adjusted as required.
- helium injection mechanisms 100a there are multiple helium injection mechanisms 100a, two adjacent helium injection mechanisms 100a communicate through the isolation valve 120, and the gas inlet 210 is connected to the isolation valve 120 of one of the helium injection mechanisms 100a.
- the helium gas provided by the helium filling device can be distributed to multiple helium injection mechanisms 100a by a four-position two-way valve 200, and the helium recovered by multiple helium injection mechanisms 100a can be aggregated to the Return to the helium unit.
- the working process of multiple helium injection mechanisms 100a can be controlled, so that helium inspection can be performed on multiple workpieces to be inspected at the same time.
- the helium injection mechanism 100a also includes a gas connection block 300, and the gas connection block 300 has a first gas connection 310, a second gas connection 320 and a third gas connection (not shown in the figure).
- the third gas connector is connected to the isolation valve 120 of one of the helium injection mechanisms 100a, and the first gas connector 310 and the second gas connector 320 are respectively connected to the gas inlet 210 and the isolation valve 120 of the adjacent helium injection mechanism 100a.
- the gas block 300 may be a hollow structure formed of metal. Specifically, the isolating valve 120 itself has several joints (not shown in the figure), and the gas connection block 300 can be connected to any joint on the isolating valve 120, so as to expand the number of ports of the isolating valve 120, so as to facilitate the connection of adjacent
- the helium injection mechanism 100 a and the helium injection mechanism 100 a are connected with the four-position two-way valve 200 .
- the gas contact block 300 can be omitted.
- the air inlet 210 of the four-position two-way valve 200 can be directly connected to the joint provided with the isolation valve 120 .
- the above-mentioned and helium detection equipment use a four-position two-way valve 200 to connect the helium injection mechanism 100a with a helium filling device, a helium return device, a vacuum pumping device, and a vacuum breaking device, and by switching the state of the four-position two-way valve 200, the charging Helium, helium return, vacuum pumping and vacuum breaking operations, so the pipeline can be significantly reduced.
- the isolation valve 120 is directly communicated with the helium injection pipe 110a, which can further reduce pipelines.
- the reduction of pipeline structure can simplify the structure of the helium injection mechanism and facilitate maintenance. More importantly, fewer pipeline structures can also significantly reduce the adsorption of helium, thereby improving the accuracy of helium detection.
Abstract
Description
Claims (20)
- 一种氦检装置,其中,包括:注氦机构(100a),包括设于注氦工位的注氦管(110a),密封嘴(20a)能够插接于所述注氦管(110a)的一端;更换机构(200a),包括设于供料工位的出料组件(210a)及设于回收工位的回收组件(220a),所述出料组件(210a)用于输出密封嘴(20a),所述回收组件(220a)用于拾取密封嘴(20a);及夹指机构(300a),包括夹持组件(310a),所述夹持组件(310a)能够夹紧或释放密封嘴(20a),所述夹持组件(310a)能够移动至所述注氦工位、所述出料工位及所述回收工位,以更换插接于所述注氦管(110a)的密封嘴(20a)。
- 根据权利要求1所述的氦检装置,其中,所述夹指机构(300a)具有相间隔的第一工位(301a)及第二工位(302a),且所述第一工位(301a)及所述第二工位(302a)上均设有所述夹持组件(310a),位于所述第二工位(302a)的所述夹持组件(310a)用于获取所述出料组件(210a)输出的密封嘴(20a),并将密封嘴(20a)转移至所述注氦管(110a),位于所述第一工位(301a)的夹持组件(310a)用于获取插接于所述注氦管(110a)的密封嘴(20a),并将密封嘴(20a)转移至所述回收组件(220a)。
- 根据权利要求1所述的氦检装置,其中,所述夹持组件(310a)能够带动所夹紧的密封嘴(20a)沿所述注氦管(110a)轴向移动,以将密封嘴(20a)插接于所述注氦管(110a)或将密封嘴(20a)从所述注氦管(110a)的一端拔出。
- 根据权利要求1所述的氦检装置,其中,所述夹持组件(310a)包括支柱(311a)及夹爪(312a),所述支柱(311a)能够承托密封嘴(20a),所述夹爪(312a)围绕所述支柱(311a)的周向设置,并可张开或合拢。
- 根据权利要求4所述的氦检装置,其中,所述夹指机构(300a)还包括升降组件(320a),所述升降组件(320a)能够带动所述夹持组件(310a)沿所述支柱(311a)的轴向升降,以使密封嘴(20a)伸入或退出所述夹爪(312a)。
- 根据权利要求1所述的氦检装置,其中,所述出料组件(210a)包括:用于存储密封嘴(20a)的出料管(211a),所述出料管(211a)的一端开设有出料口,多个密封嘴(20a)层叠于所述出料管(211a),并能够在重力的作用下滑向所述出料口;开关件(212a),具有阻止密封嘴(20a)由所述出料口滑出的阻挡状态及允许密封嘴(20a)由所述出料口滑出的打开状态,所述开关件(212a)能够在所述阻挡状态与所述打开状态之间切换。
- 根据权利要求6所述的氦检装置,其中,所述开关件(212a)包括顶块(2121a)及出料气缸(2122a),所述顶块(2121a)设于所述出料气缸(2122a)的驱动端并可滑动地穿设于所述出料管(211a)的侧壁,所述出料气缸(2122a)可驱使所述顶块(2121a)伸入或退出所述出料管(211a),以使开关件(212a)在所述阻挡状态与所述打开状态之间切换。
- 根据权利要求6所述的氦检装置,其中,所述出料管(211a)远离所述出料口的一端的侧壁开设有进料口(2111a),所述进料口(2111a)的内壁设有插销(2112a),且在密封嘴(20a)按预设朝向穿过所述进料口(2111a)时,密封嘴(20a)上的凹槽(21a)对所述插销(2112a)形成避位。
- 根据权利要求1所述的氦检装置,其中,所述回收组件(220a)包括吸取件,所述吸取件能够吸取并释放密封嘴(20a)。
- 根据权利要求1至9任一项所述的氦检装置,其中,还包括驱动机构(400a)及下部腔体机构(500a),所述夹指机构(300a)在所述驱动机构(400a)的驱使下可移动至所述注氦工位、所述出料工位及所述回收工位,所述下部腔体机构(500a)与所述夹指机构(300a)联动,并能够在驱动机构(400a)的驱使下移动至所述注氦工位。
- 根据权利要求1所述的氦检装置,其中,所述注氦机构(100a)还包括隔断阀(120),所述注氦管(110a)的一端设有注入口,所述隔断阀(120)固定于所述注氦管(110a)远离所述注入口的一端并与所述注氦管(110a)连通;所述氦检装置还包括四位二通阀(200),具有进气口(210)及四个出气口(220),所述进气口(210)能够交替与所述四个出气口(220)导通;其中,所述进气口(210)通过所述隔断阀(120)与所述注氦管(110a)连接,所述四个出气口(220)分别用于与充氦装置、回氦装置、抽真空装置及破真空装置连接。
- 根据权利要求11所述的氦检装置,其中,所述注氦机构(100a)包括固定座(130),所述注氦管(110a)安装于所述固定座(130),且所述注氦管(110a)相对于所述固定座(130)能够沿所述注入口的纵轴方向伸缩。
- 根据权利要求12所述的氦检装置,其中,所述注氦机构(100a)包括还安装板(140)及弹性件(150),所述安装板(140)沿所述注入口的纵轴方向可滑动地安装于所述固定座(130),所述注氦管(110a)固定设置于所述安装板(140),所述弹性件(150)沿所述注入口的纵轴方向对所述安装板(140)提供远离所述固定座(130)的弹性力。
- 根据权利要求13所述的氦检装置,其中,所述弹性件(150)为压缩弹簧,且所述压缩弹簧的预紧量可调。
- 根据权利要求11所述的氦检装置,其中,所述注氦管(110a)为金属管状结构。
- 根据权利要求11所述的氦检装置,其中,所述注氦机构(100a)还包括压力表(160)及三通块(170),所述注氦管(110a)、所述隔断阀(120)及所述压力表(160)分别与所述三通块(170)的三个端口连通。
- 根据权利要求11所述的氦检装置,其中,所述四位二通阀为电磁阀。
- 根据权利要求11所述的氦检装置,其中,所述注氦机构(100a)为多个,相邻两个所述注氦机构(100a)通过所述隔断阀(120)连通,所述进气口(210)与其中一个所述注氦机构(100a)的所述隔断阀(120)连接。
- 根据权利要求18所述的氦检装置,其中,还包括接气块(300),所述接气块(300)具有带有第一气接头(310)、第二气接头(320)及第三气接头,所述第三气接头与其中一个所述注氦机构(100a)的所述隔断阀(120)连接,所述第一气接头(310)及所述第二气接头(320)分别与所述进气口(210)及相邻的所述注氦机构(100a)的所述隔断阀(120)连接。
- 一种氦检设备,其中,包括如上述权利要求1至19任一项所述的氦检装置。
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EP21950847.0A EP4177586A4 (en) | 2021-07-21 | 2021-12-22 | HELIUM DETECTION DEVICE AND HELIUM DETECTION DEVICE |
JP2023503091A JP7450110B2 (ja) | 2021-07-21 | 2021-12-22 | ヘリウム検査装置およびヘリウム検査機器 |
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CN202110824783.5 | 2021-07-21 | ||
CN202121670147.3 | 2021-07-21 | ||
CN202110824783.5A CN113567062B (zh) | 2021-07-21 | 2021-07-21 | 氦检装置 |
CN202121670147.3U CN215414242U (zh) | 2021-07-21 | 2021-07-21 | 注氦装置及氦检设备 |
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EP4177586A1 (en) | 2023-05-10 |
JP7450110B2 (ja) | 2024-03-14 |
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EP4177586A4 (en) | 2024-03-13 |
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