Toy part air leakage detection device based on intelligent sensor and detection method thereof
The toy parts air leakage detection device based on intelligent sensors solves the problem of misdetection of air leakage at the connection, realizes the sorting of qualified and defective products at the same workstation, and improves the accuracy of detection and work efficiency.
Patent Information
- Application Number
- CN202510777882.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-07
- Publication Date
- 2025-09-12
AI Technical Summary
Existing toy parts leakage detection equipment cannot effectively detect leakage at the joints, resulting in a high possibility of false detection, and the detection and sorting processes require too much space.
A detection device based on intelligent sensors is used to detect air leakage at the connection through a liquid level tube, and qualified and defective products are sorted at the same workstation. An annular airbag is used to improve sealing, and a cylinder and push fork mechanism are combined to realize the sorting and export of parts.
It improves the accuracy of air leakage detection, avoids the waste of qualified products, and optimizes space utilization and work efficiency.
Smart Images
Figure CN120628472A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of detection equipment, and in particular relates to a toy parts air leakage detection device based on an intelligent sensor and a detection method thereof. Background Art
[0002] Among the methods for leak detection of toy parts, there is a direct pressure measurement method, which directly inflates the parts and monitors the pressure decay to achieve the effect of leak detection. This method is low-cost and suitable for conventional sealing testing. The products used are such as plastic housings and rubber parts.
[0003] Problems with existing technologies: In the existing process of testing the air tightness of parts, air leakage may be caused not only by quality problems of the parts themselves, but also by air leakage at the connection between the testing component and the part to be tested. However, the existing toy air leakage detection equipment is not equipped with a structure to detect air leakage at the connection, resulting in the possibility of false detection of air leakage, causing unnecessary waste of finished parts. When defective products are detected, they are usually sorted out first, and then the remaining finished products are exported as a whole. This needs to be done in two workstations in sequence. The equipment required for this method will take up too much space and is not conducive to use with other inspection agencies. Summary of the Invention
[0004] The purpose of the present invention is to provide a toy parts leakage detection device and detection method based on an intelligent sensor, which can detect the leakage occurring at the connection between the detection mechanism components and the parts to be tested, and at the same time improve the sealing of the connection. In addition, qualified and defective parts can be discharged successively through a material guide rack at the same place.
[0005] The technical solutions adopted by the present invention are as follows: A toy parts air leakage detection device based on an intelligent sensor includes a machine platform and a part to be tested. The top of the machine platform is rotatably assembled with a circular table, and the surface of the circular table is provided with an array of carriers for placing the parts to be tested. The detection station of the machine platform is equipped with an airtightness detection mechanism via a first displacement mechanism, and the unloading station of the machine platform is equipped with a discharge mechanism via a second displacement mechanism, and a material guide rack is provided on the same side of the discharge mechanism. The airtightness detection mechanism includes a hydraulic tube and a measuring tube. The bottom end of the hydraulic tube is integrally assembled with an air injection tube, and the bottom end of the air injection tube is integrally assembled with an air nozzle. A liquid level tube 1 is fixedly assembled on one side of each air nozzle. When air leaks at the connection between the air nozzle and the part to be tested, the liquid level inside the liquid level tube 1 changes. A second liquid level tube is provided on the surface of the machine and on one side of the measuring tube. When there is air leakage at the connection between the measuring tube and the part to be measured, the liquid level inside the second liquid level tube changes. The unloading mechanism is integrally provided with a double-layer rack inside, and the upper and lower layers on one side of the double-layer rack are both provided with fork plates in an array, and the surfaces of all the fork plates on the two layers are slidably assembled with push forks. The lower layer pushes the qualified parts into the guide rack first, and the upper layer pushes the defective parts into the guide rack last.
[0006] The displacement mechanism 1 includes a vertical guide frame 1 fixedly installed on one side of the machine platform. The upper half of the vertical guide frame 1 is assembled with a climbing frame 1 in a lifting manner, and the lower half of the vertical guide frame 1 is assembled with a climbing frame 2 in a lifting manner.
[0007] The hydraulic pipes are fixedly assembled in an array on one side of the climbing frame. The hydraulic pipes are slidingly assembled with liquid plugs inside, and three-way valves for controlling the movement of the liquid plugs inside the corresponding hydraulic pipes are installed in an array on one side of the climbing frame. The air injection pipes are slidingly assembled with air plugs, and the liquid plugs are fixedly connected to the air plugs.
[0008] The top end of the part to be tested is inserted into the corresponding air nozzle. The inner walls of the top and bottom ends of the air nozzle are respectively embedded with annular airbags 1 and 2. After inflation, the annular airbags 1 and 2 are sealed and fitted with the side walls of the part to be tested. The annular airbag 1 is connected to the bottom end of the air injection tube through an air pipe 1 provided on the outer wall. The annular airbag 2 is connected to the bottom end of the air injection tube through an air pipe 2 provided on the outer wall. An air release cavity 1 is provided on the inner wall of the air nozzle and located between the annular airbags 1 and 2. The liquid level pipe 1 is communicated with the corresponding air relief chamber 1 through an inverted U-shaped air pipe 1.
[0009] The measuring tubes are fixedly assembled in an array on one side of the climbing frame 2, and the bottom end of the part to be measured is inserted into the top end of the corresponding measuring tube. An air pressure sensor is fixedly installed inside the measuring tube, and a display screen for displaying the pressure change of the corresponding air pressure sensor is installed on one side of the machine surface; The top of the inner wall of the measuring tube is respectively embedded with an annular airbag three and an annular airbag four, and the annular airbag three and the annular airbag four are sealed and fitted with the side wall of the part to be measured after inflation. The annular airbag three and the annular airbag four are connected through an air pipe three provided on the outer wall. The annular airbag four is connected to the bottom end of the air injection pipe through an air pipe four passing through the machine. The inner wall of the measuring tube is provided with an air release chamber two located between the annular airbag three and the annular airbag four. The second liquid level tube is communicated with the corresponding second air relief chamber through a second inverted U air tube.
[0010] The displacement mechanism 2 includes a vertical guide frame 2 fixedly mounted on the surface of the machine platform, the upper half of the vertical guide frame 1 is assembled with a climbing frame 3 in a lifting manner, one side of the climbing frame 3 is assembled with a track frame in a horizontal sliding manner, and the unloading mechanism is fixedly assembled at the bottom end of the track frame.
[0011] Cylinders are installed in an array inside the machine and at corresponding unloading stations, and the cylinders are used to lift up defective products for inspection.
[0012] The fork plate on the upper layer is used to carry defective parts, and the fork plate on the lower layer is used to carry qualified parts. The push forks on the same layer are connected by a connecting rod; Both sides of the double-layer frame are slidably assembled with push racks, and the side walls of the top of the push rack are integrally provided with a push block 1 for pushing the upper connecting rod, and the side walls of the bottom of the push rack are elastically slidably assembled with a push block 2 through a set spring, and the push block 2 is used to push the lower connecting rod, and the top of the push rack is integrally provided with a gear rod, and the inner side of the top of the double-layer frame is rotatably assembled with a connecting shaft, and both ends of the connecting shaft are fixedly assembled with gears meshing with corresponding gear rods, and the inner side of the double-layer frame is provided with a power mechanism for driving the connecting shaft to rotate.
[0013] The push frame extends to the outside of the unloading mechanism and is integrally provided with a push rod; The inclined ends of the material guide rack are provided with discharge port 1 and discharge port 2 in sequence. The top of the discharge port 1 is rotatably assembled with a flap. The two ends of the flap adapter shaft extending to the outside of the material guide rack are fixedly connected with end rods. The outer walls of both ends of the material guide rack are slidably assembled with push arms, and one end of the push arm is connected to the end of the corresponding end rod. The push arm is pushed by the top rod and drives the flap to flip through the end rod.
[0014] A method for detecting air leakage in toy parts based on intelligent sensors, the specific steps are as follows: Step 1: A row of parts to be tested are transferred to the loading station via a loading robot. The round table then transports the reorganized parts to the inspection station. Step 2: Control the air nozzle and measuring tube to connect to the top and bottom ends of the corresponding part to be tested. Use the hydraulic pipe to move the air plug and inject air into the part to be tested. Maintain the air pressure for a period of time and measure the air pressure inside the part to be tested through the air pressure sensor. Step 3: When the display screen of a certain station shows abnormal changes in the value, it means that the part to be tested at that station is leaking. When the liquid level in liquid level tube 1 changes, it means that there is a leak at the connection between the air nozzle and the part to be tested. When the liquid level in liquid level tube 2 changes, it means that there is a leak at the connection between the measuring tube and the part to be tested. When the liquid levels in both liquid level tubes 1 and 2 do not change, it means that the part to be tested itself is leaking due to insufficient airtightness. Step 4: The reorganized parts to be tested are transported to the unloading station. The corresponding cylinder at a certain position will push out the defective parts at that position, and the reorganized parts to be tested are unloaded using the unloading mechanism. Among them, the qualified finished products will be discharged from the discharge port 1 first, and the defective parts will be discharged from the discharge port 2 later.
[0015] The technical effects achieved by the present invention are: The present invention can detect air leakage at the connection between the detection mechanism components and the part to be tested, and sets a corresponding detection structure at the corresponding connection. By directly observing the liquid level changes in the corresponding liquid level tube 1 and liquid level tube 2, it is determined whether air leakage occurs at the connection, thereby avoiding the possibility of misdetection of the air leakage detection result, ensuring the authenticity of the detection result, and avoiding the waste of qualified products.
[0016] In the present invention, when gas is injected into the interior of the part to be tested, part of the gas will simultaneously enter the annular airbags 1, 2, 3 and 4 at both ends of the part. After being inflated, each airbag can adhere tightly to the side wall of the part to be tested, thereby improving the sealing of the connection between the detection mechanism components and the part to be tested.
[0017] During the unloading process of the present invention, qualified parts and defective parts can be successively discharged through the guide rack at the unloading station, and the sorting effect is completed simultaneously during the process of being pushed out by the unloading mechanism. There is no need to carry out the sorting at two stations in sequence, and the required equipment will not take up too much space and unloading time, thereby ensuring work efficiency and optimizing space utilization. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is a main structural diagram of a detection device provided by an embodiment of the present invention; Figure 2 is a rear structural diagram of a detection device provided by an embodiment of the present invention; Figure 3 1 is a structural diagram of a combination of a displacement mechanism 1 and an airtightness detection mechanism provided in an embodiment of the present invention; Figure 4 This is a structural diagram of a single detection station of an airtightness detection mechanism provided by an embodiment of the present invention; Figure 5 This is a cross-sectional structural diagram of a single detection station of an airtightness detection mechanism provided by an embodiment of the present invention; Figure 6 yes Figure 4 A local enlarged structural diagram at point A in the middle; Figure 7 yes Figure 5 A local enlarged structural diagram at point B in the middle; Figure 8 yes Figure 5 A partial enlarged structural diagram at point C in the middle; Figure 9 This is a combined structural diagram of the displacement mechanism 2, the material discharge mechanism, and the material guide frame provided in an embodiment of the present invention; Figure 10 This is a combined structural diagram of the internal structure of the blanking mechanism and the cylinder provided in an embodiment of the present invention; Figure 11This is a disassembled diagram of the internal structure of the blanking mechanism provided by an embodiment of the present invention; Figure 12 is a structural diagram of a push rack provided by an embodiment of the present invention; Figure 13 1 is a diagram showing the internal structure of a material guide rack provided in an embodiment of the present invention.
[0019] In the accompanying drawings, the components represented by the reference numerals are as follows: 1. Machine platform; 2. Round table; 3. Carrying base; 4. Part to be tested; 5. Displacement mechanism 1; 501. Vertical guide frame 1; 502. Climbing frame 1; 503. Climbing frame 2; 6. Airtightness detection mechanism; 601. Hydraulic pipe; 602. Air injection pipe; 603. Liquid plug; 604. Air plug; 605. Air nozzle; 606. Annular airbag 1; 607. Annular airbag 2; 608. Air release chamber 1; 609. Inverted U air pipe 1; 610. Liquid level pipe 1; 611. Air pipe 1; 612. Air pipe 2; 613. Measuring pipe; 614. Air pressure sensor; 615. Annular airbag 3; 616. Annular airbag 4; 617. Air pipe 3; 618. Air pipe Four; 619, inverted U air pipe two; 620, liquid level pipe two; 621, three-way valve; 7, display screen; 8, displacement mechanism two; 801, vertical guide frame two; 802, climbing frame three; 803, track frame; 9, unloading mechanism; 901, double-layer frame; 902, fork plate; 903, push fork; 904, connecting rod; 905, push frame; 906, push block one; 907, gear rod; 908, push block two; 909, spring; 910, push rod; 911, connecting shaft; 912, gear; 10, guide frame; 1001, discharge port one; 1002, discharge port two; 1003, flip baffle; 1004, end rod; 1005, push arm; 11, cylinder. DETAILED DESCRIPTION
[0020] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is described in detail below with reference to the following examples. It should be understood that the following text is only used to describe one or more specific embodiments of the present invention and does not strictly limit the scope of protection of the present invention.
[0021] like Figures 1-13 As shown, a toy part leakage detection device based on an intelligent sensor includes a machine 1 and a part to be tested 4. A round table 2 is rotatably assembled on the top of the machine 1, and a surface of the round table 2 is provided with an array of carriers 3 for placing the part to be tested 4. The detection station of the machine 1 is assembled with an airtightness detection mechanism 6 through a displacement mechanism 1 5. The unloading station of the machine 1 is assembled with a discharge mechanism 9 through a displacement mechanism 2 8, and a guide rack 10 is provided on the same side of the discharge mechanism 9.
[0022] Example 1: Refer to the attached Figure 3 The displacement mechanism 5 includes a vertical guide frame 501 fixedly installed on one side of the machine 1, the upper half of the vertical guide frame 501 is assembled with a climbing frame 502 in a lifting manner, and the lower half of the vertical guide frame 501 is assembled with a climbing frame 2 503 in a lifting manner.
[0023] Refer to the attached Figure 3-Figure 5 The airtightness detection mechanism 6 includes a hydraulic tube 601 and a measuring tube 613. The hydraulic tube 601 is fixedly assembled in an array on one side of the climbing frame 502. A liquid plug 603 is slidably assembled inside the hydraulic tube 601, and a three-way valve 621 for controlling the movement of the liquid plug 603 inside the corresponding hydraulic tube 601 is installed in an array on one side of the climbing frame 502. The bottom end of the hydraulic tube 601 is integrally assembled with an air injection tube 602, and the air plug 604 is slidably assembled inside the air injection tube 602, and the liquid plug 603 and the air plug 604 are fixedly connected; Refer to the attached Figure 5 and Figure 7 The bottom end of the gas injection tube 602 is integrally assembled with a gas nozzle 605, and the top end of the part 4 to be tested is inserted into the corresponding gas nozzle 605. The inner walls of the top and bottom ends of the gas nozzle 605 are respectively embedded with an annular airbag 1 606 and an annular airbag 2 607. After inflation, the annular airbag 1 606 and the annular airbag 2 607 are sealed and fitted with the side wall of the part 4 to be tested. The annular airbag 1 606 is connected to the bottom end of the gas injection tube 602 through an air pipe 1 611 provided on the outer wall. The annular airbag 2 607 is connected to the bottom end of the gas injection tube 602 through an air pipe 2 612 provided on the outer wall. An air release chamber 1 608 is opened on the inner wall of the gas nozzle 605 and located between the annular airbag 1 606 and the annular airbag 2 607. Refer to the attached Figure 5 and Figure 7 A liquid level tube 610 is fixedly assembled on one side of each air nozzle 605. The liquid level tube 610 is connected to the corresponding air release chamber 608 through an inverted U-shaped air pipe 609. When there is air leakage at the connection between the air nozzle 605 and the part to be tested 4, the liquid level inside the liquid level tube 610 changes.
[0024] According to the above structure, when the air tightness test is performed on the part to be tested 4, the climbing frame 502 carries each hydraulic tube 601 to move downward, and the top end of the part to be tested 4 is inserted into the corresponding air nozzle 605. After the hydraulic oil is injected into the hydraulic tube 601, the liquid plug 603 is driven to move, and the air plug 604 follows the movement and squeezes the gas inside the air injection tube 602 into the part to be tested 4. In addition, some gas will enter the annular airbag 1 606 through the air pipe 1 611 and enter the annular airbag 2 607 through the air pipe 2 612. After inflation, the annular airbag 1 606 and the annular airbag 2 607 are sealed and fitted with the side wall of the part to be tested 4, which is used to improve the sealing between the air nozzle 605 and the part to be tested 4. If there is still air leakage between the air nozzle 605 and the part to be tested 4, the leaked gas will enter the air release chamber 1 608 and finally enter the inverted U air pipe 1 609, thereby causing the liquid level in the liquid level tube 1 610 to change.
[0025] Refer to the attached Figure 2-Figure 3 The measuring tubes 613 are fixedly assembled in an array on one side of the climbing frame 2 503, and the bottom end of the part 4 to be measured is inserted into the top end of the corresponding measuring tube 613. The inside of the measuring tube 613 is fixedly installed with an air pressure sensor 614. A display screen 7 for displaying the pressure change of the corresponding air pressure sensor 614 is installed on one side of the surface of the machine 1; Refer to the attached Figure 6 and Figure 8 , the top of the inner wall of the measuring tube 613 is respectively embedded with an annular airbag 3 615 and an annular airbag 4 616. After inflation, the annular airbag 3 615 and the annular airbag 4 616 are sealed against the side wall of the part to be measured 4. The annular airbag 3 615 and the annular airbag 4 616 are connected via an air pipe 3 617 provided on the outer wall. The annular airbag 4 616 is connected to the bottom end of the air injection pipe 602 via an air pipe 4 618 passing through the machine 1. The inner wall of the measuring tube 613 is provided with a second air release chamber located between the annular airbag 3 615 and the annular airbag 4 616. Refer to the attached Figure 6 and Figure 8 A second liquid level tube 620 is provided on the surface of the machine 1 and on one side of the measuring tube 613. The second liquid level tube 620 is connected to the corresponding second air release chamber through an inverted U-shaped air pipe 619. When there is air leakage at the connection between the measuring tube 613 and the part to be measured 4, the liquid level inside the second liquid level tube 620 changes.
[0026] According to the above structure, the climbing frame 503 carries each measuring tube 613 to move upward, and inserts the bottom end of the part to be measured 4 into the corresponding measuring tube 613. When the gas in the gas injection tube 602 is squeezed into the part to be measured 4, some gas will pass through the gas pipe 618 and enter between the annular airbag 3 615 and the annular airbag 4 616. After inflation, the annular airbag 3 615 and the annular airbag 4 616 are also sealed against the side wall of the part to be measured 4, so as to improve the sealing between the measuring tube 613 and the part to be measured 4. If there is still leakage between the measuring tube 613 and the part to be measured 4, the leaked gas will enter the second degassing chamber and eventually enter the second inverted U gas pipe 619, thereby causing the liquid level in the second liquid level tube 620 to change. The above process can detect air leakage at the connection between the detection mechanism components and the part to be tested 4. Corresponding detection structures are provided at the corresponding connections. By directly observing the changes in the liquid levels in the corresponding liquid level tubes 1 610 and 2 620, it is determined whether air leakage occurs at the connection. This avoids the possibility of false detection of air leakage detection results, ensures the authenticity of the test results, and avoids the waste of qualified products. In addition, when gas is injected into the interior of the part to be tested 4, some of the gas will also enter the annular airbag 1 606, annular airbag 2 607, annular airbag 3 615 and annular airbag 4 616 at both ends. After inflation, each airbag can be tightly attached to the side wall of the part to be tested 4, thereby improving the sealing of the connection between the detection mechanism components and the part to be tested 4.
[0027] The working principle of the present invention is as follows: when the air tightness test is performed on the part 4 to be tested, the climbing frame 1 502 carries each hydraulic pipe 601 to move downward, and the top end of the part 4 to be tested is inserted into the corresponding gas nozzle 605; the climbing frame 2 503 carries each measuring pipe 613 to move upward, and the bottom end of the part 4 to be tested is inserted into the corresponding measuring pipe 613; after the hydraulic oil is injected into the hydraulic pipe 601, the liquid plug 603 is driven to move, and the gas plug 604 moves along with it and squeezes the gas inside the gas injection pipe 602 into the part 4 to be tested; the air pressure sensor 614 is used to measure the air pressure of the corresponding part 4 to be tested after the gas is injected, and then it is left to stand for a period of time and the change of the internal air pressure of the corresponding part 4 to be tested is observed through the display screen 7; when the display screen 7 shows that the air pressure change is abnormal and an alarm is issued, it means that the corresponding part 4 to be tested has a gas leakage during the test, and at this time, the liquid level pipe 1 610 and the liquid level pipe 2 620 corresponding to the part 4 to be tested are observed; When the liquid level inside liquid level tube 1 610 changes, it means that there is a leak at the connection between the air nozzle 605 and the part to be measured 4; when the liquid level inside liquid level tube 2 620 changes, it means that there is a leak at the connection between the measuring tube 613 and the part to be measured 4; when the liquid levels inside liquid level tube 1 610 and liquid level tube 2 620 do not change, it means that the part to be measured 4 itself is leaking due to insufficient air tightness.
[0028] Example 2: Refer to the attached Figure 10 , cylinders 11 are installed in an array inside the machine 1 and at corresponding unloading positions, and the cylinders 11 are used to lift and detect defective products.
[0029] According to the above structure, each group of parts 4 to be tested will eventually be transported to the unloading station after the inspection is completed, and the defective product position information will be transmitted to the control system, and the cylinder 11 on the corresponding station will be controlled to operate. Finally, the defective products will be lifted up by the corresponding cylinder 11 and will be much higher than other qualified finished products.
[0030] Refer to the attached Figure 9 The displacement mechanism 2 8 includes a vertical guide frame 2 801 fixedly mounted on the surface of the machine 1, the upper half of the vertical guide frame 1 501 is lifted and assembled with a climbing frame 3 802, one side of the climbing frame 3 802 is horizontally slidably assembled with a track frame 803, and the unloading mechanism 9 is fixedly assembled at the bottom end of the track frame 803.
[0031] According to the above structure, the horizontal and vertical movement of the blanking mechanism 9 is controlled by the displacement mechanism 2 8 .
[0032] Refer to the attached Figure 10-11 The unloading mechanism 9 is internally integrated with a double-layer rack 901. Fork plates 902 are arranged in an array on both the upper and lower layers of one side of the double-layer rack 901. The fork plates 902 on the upper layer are used to carry defective parts, and the fork plates 902 on the lower layer are used to carry qualified parts. Push forks 903 are slidably assembled on the surfaces of all fork plates 902 on the two layers, and the push forks 903 on the same layer are connected by connecting rods 904. Refer to the attached Figure 11-12 , both sides of the double-layer frame 901 are slidingly assembled with push racks 905, and the side wall of the top of the push rack 905 is integrally provided with a push block 1 906 for pushing the upper connecting rod 904, and the side wall of the bottom of the push rack 905 is elastically slidably assembled with a push block 2 908 through the provided spring 909, and the push block 2 908 is used to push the lower connecting rod 904, and the top of the push rack 905 is integrally provided with a gear rod 907, and the inner side of the top of the double-layer frame 901 is rotatably assembled with a connecting shaft 911, and both ends of the connecting shaft 911 are fixedly assembled with gears 912 meshing with the corresponding gear rod 907. The inner side of the double-layer frame 901 is provided with a power mechanism for driving the connecting shaft 911 to rotate, and the power mechanism adopts a combination of a servo motor and a reducer.
[0033] According to the above structure, the unloading mechanism 9 is controlled by the displacement mechanism 2 8 to approach the corresponding group of parts 4 to be tested. At this time, the fork plate 902 located at the lower layer is used to carry qualified parts, and the fork plate 902 located at the upper layer is used to carry and lift defective parts. Then the unloading mechanism 9 is controlled to move upward and approach the entrance of the guide rack 10.
[0034] Refer to the attached Figure 11-12The push frame 905 extends to the outside of the unloading mechanism 9 and is integrally provided with a push rod 910; Refer to the attached Figure 9 and Figure 13 The inclined ends of the guide rack 10 are sequentially provided with a discharge port 1001 and a discharge port 2 1002. The top of the discharge port 1001 is rotatably assembled with a flip plate 1003. The flip plate 1003 adapter shaft extends to the outside of the guide rack 10 and both ends are fixedly connected with end rods 1004. The outer walls of both ends of the guide rack 10 are slidably assembled with push arms 1005, and one end of the push arm 1005 is connected to the end of the corresponding end rod 1004. The push arm 1005 is pushed by the top rod 910 and drives the flip plate 1003 to flip through the end rod 1004.
[0035] According to the above structure, the power mechanism in the unloading mechanism 9 starts and drives the connecting shaft 911 to rotate, and the meshing of the gear 912 and the corresponding gear rod 907 drives the push frame 905 to move linearly. Then, the push block 2 908 will preferentially contact the lower connecting rod 904 and push the lower push fork 903. The qualified parts on the lower layer will be pushed into the interior of the guide rack 10 by the push fork 903 first, and then discharged through the discharge port 1001. After the push block 2 908 and the connecting rod 904 of the lower layer move to the limit position, the push block 1 906 immediately contacts the connecting rod 904 of the upper layer and pushes the upper push fork 903. Relative movement occurs between the push block 2 908 and the push frame 905 and the spring 909 is compressed. Finally, the defective parts on the upper layer are pushed into the guide rack 10 by the push fork 903. Before that, the push rod 910 on the outer wall of the push frame 905 contacts the corresponding push arm 1005 at the same time. The push arm 1005 is pushed by the push rod 910 and drives the flip plate 1003 to flip through the end rod 1004. The flipped flip plate 1003 blocks the discharge port 1 1001 and ensures that the defective parts are discharged from the discharge port 2 1002. In the above process, qualified parts and defective parts are successively discharged through the guide rack 10 at the unloading station, and the sorting effect is completed simultaneously during the process of being pushed out by the unloading mechanism 9. There is no need to carry out the sorting at two stations in sequence. The required equipment will not take up too much space and unloading time, thereby ensuring work efficiency and optimizing space utilization.
[0036] The working principle of the present invention is as follows: defective products are lifted up by the cylinder 11 at the corresponding position and are much higher than other qualified finished products. The unloading mechanism 9 is controlled by the displacement mechanism 2 8 to approach the corresponding group of parts to be tested 4. At this time, the fork plate 902 on the lower layer is used to carry qualified parts, and the fork plate 902 on the upper layer is used to carry and lift the defective parts. Then the unloading mechanism 9 is controlled to move up and approach the entrance of the guide rack 10, the power mechanism starts and drives the connecting shaft 911 to rotate, and the push rack 905 is driven to move linearly through the engagement of the gear 912 with the corresponding gear rod 907. Then, the push block 2 908 will preferentially contact the lower connecting rod 904 and thereby push the lower push fork 903. The qualified parts on the lower layer will be pushed into the interior of the guide rack 10 by the push fork 903 first, and then discharged through the discharge port 1 1001. Afterwards, after the push block 2 908 and the connecting rod 904 on the lower layer move to the extreme position, the push block 1 906 immediately contacts the connecting rod 904 on the upper layer and pushes the upper push fork 903, and the defective parts on the upper layer will be pushed into the guide rack 10 by the push fork 903. Before this, the push rod 910 contacts the corresponding push arm 1005. The push arm 1005 is pushed by the push rod 910 and drives the flip plate 1003 to flip through the end rod 1004. The flipped flip plate 1003 blocks the discharge port 1 1001 and ensures that the defective parts are discharged from the discharge port 2 1002.
[0037] A method for detecting air leakage in toy parts based on intelligent sensors, the specific steps are as follows: Step 1: A row of multiple parts 4 to be tested are transferred to the loading station by the loading robot claw, and the reorganized parts 4 to be tested are transported to the inspection station by the round table 2; Step 2: Control the air nozzle 605 and the measuring tube 613 to simultaneously connect to the top and bottom ends of the corresponding part 4 to be tested. The hydraulic tube 601 is operated to move the air plug 604 and inject air into the part 4 to be tested. The air pressure is maintained for a period of time, and the air pressure inside the part 4 to be tested is measured by the air pressure sensor 614. Step 3: When the display screen 7 of a certain station shows abnormal changes in the value, it means that the part 4 to be tested at that station is leaking. When the liquid level in the first liquid level tube 610 changes, it means that there is a leak at the connection between the gas nozzle 605 and the part 4 to be tested. When the liquid level in the second liquid level tube 620 changes, it means that there is a leak at the connection between the measuring tube 613 and the part 4 to be tested. When the liquid levels in both the first and second liquid level tubes 610 and 620 do not change, it means that the part 4 to be tested itself is leaking due to insufficient airtightness. Step 4: The reorganized parts to be tested 4 are transported to the unloading station. The corresponding cylinder 11 at a certain position pushes out the defective parts at that position, and the reorganized parts to be tested 4 are unloaded using the unloading mechanism 9. Among them, the qualified finished products will be discharged from the discharge port 1 1001 first, and the defective parts will be discharged from the discharge port 2 1002 afterwards.
[0038] The foregoing is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained herein shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.
Claims
1. A toy parts air leakage detection device based on an intelligent sensor, comprising a machine (1) and a part to be tested (4), wherein a round table (2) is rotatably assembled on the top of the machine (1), and a surface of the round table (2) is provided with a carrier (3) for placing the part to be tested (4) in an array, characterized in that: The detection station of the machine (1) is assembled with an airtightness detection mechanism (6) through a first displacement mechanism (5), and the unloading station of the machine (1) is assembled with a discharge mechanism (9) through a second displacement mechanism (8), and a guide rack (10) is provided on the same side of the discharge mechanism (9); The airtightness detection mechanism (6) includes a hydraulic tube (601) and a measuring tube (613). The bottom end of the hydraulic tube (601) is integrally assembled with an air injection tube (602). The bottom end of the air injection tube (602) is integrally assembled with an air nozzle (605). A liquid level tube (610) is fixedly assembled on one side of each air nozzle (605). When there is air leakage at the connection between the air nozzle (605) and the part to be tested (4), the liquid level inside the liquid level tube (610) changes. A second liquid level tube (620) is provided on the surface of the machine (1) and on one side of the measuring tube (613). When there is air leakage at the connection between the measuring tube (613) and the part to be measured (4), the liquid level inside the second liquid level tube (620) changes. The unloading mechanism (9) is provided with a double-layer rack (901) in an integrated manner inside. Fork plates (902) are arranged in an array on both the upper and lower layers of one side of the double-layer rack (901). Push forks (903) are slidably assembled on the surfaces of all the fork plates (902) on both layers. The lower push forks (903) first push qualified parts into the guide rack (10), and the upper push forks (903) finally push defective parts into the guide rack (10).
2. The toy parts air leakage detection device based on an intelligent sensor according to claim 1, characterized in that: The displacement mechanism 1 (5) includes a vertical guide frame 1 (501) fixedly installed on one side of the machine platform (1), the upper half of the vertical guide frame 1 (501) is assembled with a climbing frame 1 (502) in a lifting manner, and the lower half of the vertical guide frame 1 (501) is assembled with a climbing frame 2 (503) in a lifting manner.
3. The toy parts air leakage detection device based on an intelligent sensor according to claim 2, characterized in that: The hydraulic pipes (601) are fixedly assembled in an array on one side of the climbing frame (502), the hydraulic pipes (601) are internally slidably assembled with liquid plugs (603), and one side of the climbing frame (502) is array-mounted with three-way valves (621) for controlling the movement of the liquid plugs (603) inside the corresponding hydraulic pipes (601), the gas injection pipes (602) are internally slidably assembled with gas plugs (604), and the liquid plugs (603) and the gas plugs (604) are fixedly connected.
4. The toy parts air leakage detection device based on an intelligent sensor according to claim 3, characterized in that: The top end of the part to be tested (4) is inserted into the corresponding air nozzle (605), and the inner walls of the top and bottom ends of the air nozzle (605) are respectively embedded with an annular air bag (606) and an annular air bag (607), and the annular air bag (606) and the annular air bag (607) are sealed and fitted with the side wall of the part to be tested (4) after being inflated. The annular air bag (606) is connected to the bottom end of the air injection tube (602) through the air pipe (611) provided on the outer wall, and the annular air bag (607) is connected to the bottom end of the air injection tube (602) through the air pipe (612) provided on the outer wall. The inner wall of the air nozzle (605) is provided with an air release cavity (608) located between the annular air bag (606) and the annular air bag (607); The liquid level tube 1 (610) is connected to the corresponding air release chamber 1 (608) via an inverted U-shaped air pipe 1 (609).
5. The toy parts air leakage detection device based on an intelligent sensor according to claim 4, characterized in that: The measuring tubes (613) are fixedly assembled in an array on one side of the climbing frame (503), and the bottom end of the part to be measured (4) is inserted into the top end of the corresponding measuring tube (613). An air pressure sensor (614) is fixedly installed inside the measuring tube (613), and a display screen (7) for displaying the pressure change of the corresponding air pressure sensor (614) is installed on one side of the surface of the machine (1); The top end of the inner wall of the measuring tube (613) is respectively embedded with an annular airbag three (615) and an annular airbag four (616), and the annular airbag three (615) and the annular airbag four (616) are sealed and fitted with the side wall of the part to be measured (4) after being inflated. The annular airbag three (615) and the annular airbag four (616) are connected through the air pipe three (617) provided on the outer wall. The annular airbag four (616) is connected to the bottom end of the air injection pipe (602) through the air pipe four (618) passing through the machine (1). The inner wall of the measuring tube (613) is provided with an air release chamber two located between the annular airbag three (615) and the annular airbag four (616); The second liquid level pipe (620) is connected to the corresponding second air release chamber via the second inverted U air pipe (619).
6. The toy parts air leakage detection device based on an intelligent sensor according to claim 5, characterized in that: The displacement mechanism 2 (8) includes a vertical guide frame 2 (801) fixedly mounted on the surface of the machine platform (1), the upper half of the vertical guide frame 1 (501) is assembled with a climbing frame 3 (802) in a lifting manner, one side of the climbing frame 3 (802) is assembled with a track frame (803) in a horizontal sliding manner, and the unloading mechanism (9) is fixedly assembled at the bottom end of the track frame (803).
7. The toy parts air leakage detection device based on an intelligent sensor according to claim 6, characterized in that: Cylinders (11) are installed in an array inside the machine (1) and at corresponding unloading stations, and the cylinders (11) are used to lift and inspect defective products.
8. The toy parts air leakage detection device based on an intelligent sensor according to claim 7, characterized in that: The fork plate (902) located on the upper layer is used to carry defective parts, and the fork plate (902) located on the lower layer is used to carry qualified parts. The pushing forks (903) located on the same layer are connected by a connecting rod (904); Both sides of the double-layer frame (901) are slidably assembled with push frames (905), and the side wall of the top of the push frame (905) is integrally provided with a push block (906) for pushing the upper connecting rod (904). The side wall of the bottom of the push frame (905) is elastically slidably assembled with a push block (908) through a spring (909), and the push block (908) is used to push the lower connecting rod (904). The top of the push frame (905) is integrally provided with a gear rod (907). The inner side of the top of the double-layer frame (901) is rotatably assembled with a connecting shaft (911), and both ends of the connecting shaft (911) are fixedly assembled with gears (912) meshing with the corresponding gear rods (907). The inner side of the double-layer frame (901) is provided with a power mechanism for driving the connecting shaft (911) to rotate.
9. The toy parts air leakage detection device based on an intelligent sensor according to claim 8, characterized in that: The push frame (905) extends to the outside of the unloading mechanism (9) and is integrally provided with a push rod (910); The inclined ends of the guide rack (10) are provided with a discharge port 1 (1001) and a discharge port 2 (1002) in sequence, and a flap (1003) is rotatably assembled on the top of the discharge port 1 (1001), and both ends of the flap (1003) extending from the adapter shaft to the outside of the guide rack (10) are fixedly connected to end rods (1004), and the outer walls of both ends of the guide rack (10) are slidably assembled with push arms (1005), and one end of the push arm (1005) is connected to the end of the corresponding end rod (1004), and the push arm (1005) is pushed by the top rod (910) and drives the flap (1003) to flip through the end rod (1004).
10. A method for detecting air leakage of toy parts based on an intelligent sensor, using the toy parts air leakage detection device based on an intelligent sensor according to claim 9, characterized in that: The specific steps are as follows: Step 1: A row of multiple parts to be tested (4) is transferred to a loading station in a loading seat (3) by a loading mechanical claw, and the reorganized parts to be tested (4) are transported to the inspection station by a round table (2); Step 2: Control the air nozzle (605) and the measuring tube (613) to be connected to the top and bottom ends of the corresponding part to be tested (4) at the same time, operate the hydraulic tube (601) to move the air plug (604) and inject air into the part to be tested (4), maintain the air pressure for a period of time, and measure the air pressure inside the part to be tested (4) through the air pressure sensor (614); Step 3: When the display screen (7) of a certain station shows an abnormal change in the value, it means that the part to be tested (4) at the station is leaking. When the internal liquid level of the liquid level tube 1 (610) changes, it means that the connection between the air nozzle (605) and the part to be tested (4) is leaking. When the internal liquid level of the liquid level tube 2 (620) changes, it means that the connection between the measuring tube (613) and the part to be tested (4) is leaking. When the internal liquid levels of both the liquid level tube 1 (610) and the liquid level tube 2 (620) do not change, it means that the part to be tested (4) itself is leaking due to insufficient airtightness. Step 4: The reorganized parts to be tested (4) are transported to the unloading station, and the cylinder (11) at a certain position ejects the defective parts at that position, and the unloading mechanism (9) is used to unload the reorganized parts to be tested (4). Among them, the qualified finished products will be discharged from the discharge port 1 (1001) first, and the defective parts will be discharged from the discharge port 2 (1002) later.