Air tightness automatic detection equipment

By introducing a dual-station synchronous displacement and alternating rapid loading and unloading design into the automatic airtightness testing equipment, the problem of low efficiency of existing equipment has been solved, achieving seamless integration with the production line and efficient testing.

CN223973383UActive Publication Date: 2026-03-06DONGGUAN JIASHIJIE PRECISION AUTOMATION CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-04
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Existing automatic airtightness testing equipment is inefficient, products stay at the testing device for too long, cannot be seamlessly integrated with the production line, and the material feeding method cannot meet production needs.

Method used

Design an automatic airtightness testing device, which employs two airtightness testing devices, a PPU handling robot, and a synchronous displacement device. The number of product placement positions on the second carrier is greater than that on the first carrier, enabling alternating rapid loading and unloading. Multiple products are tested at once through the dual-station synchronous displacement device, and the device connects with the preceding and following production steps using the first X-axis moving mechanism.

Benefits of technology

It improved testing efficiency, reduced product waiting time in the testing equipment, achieved seamless integration with the production line, and enhanced overall testing efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses automatic airtightness detection equipment. The automatic airtightness detection equipment comprises a machine table, a feeding module, an airtightness detection module and a discharging module, wherein the feeding module, the airtightness detection module and the discharging module are sequentially arranged on the machine table in the X-axis direction at equal intervals. The feeding module and the discharging module are each provided with a transferring station and two transferring stations, first X-axis moving mechanisms are arranged on the two sides of the Y-axis direction of the transferring stations, first carrying bases and Y-axis moving mechanisms are arranged on the first X-axis moving mechanisms, and transferring stations are arranged between the transferring stations and the transferring stations. The feeding module and the discharging module are each provided with a PPU carrying mechanical arm, each PPU carrying mechanical arm is provided with four first material taking and placing assemblies arranged at equal intervals, and the PPU carrying mechanical arms are used for alternately carrying products on the first carrying bases to the two second carrying bases. Multiple products can be detected at a time, the detection efficiency is improved, the two first carrying seats can supply or take materials in a crossed mode, the waiting time is shortened, and the detection efficiency is further improved.
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Description

Technical Field

[0001] This utility model relates to the field of testing equipment, and in particular to an automatic airtightness testing device. Background Technology

[0002] Air tightness testing is a key step in ensuring product quality in industrial production. It is widely used in fields with strict sealing requirements, such as new energy vehicle battery packs, medical devices, and electronic products (e.g., connectors). Traditional testing methods mainly rely on manual operation or semi-automated equipment, which have problems such as low efficiency, unstable accuracy, and difficulty in seamlessly integrating with the production line.

[0003] Existing automatic airtightness testing equipment includes a feeding device, an airtightness testing device, and a discharging device. The feeding device places products from the previous process onto a tray. A first robotic arm picks up products from the tray one by one and places them onto the airtightness testing device. Then, a second robotic arm picks up products from the airtightness testing device one by one and places them onto the discharging device. In this structure, the first and second robotic arms are set to feed and unload the airtightness testing device one by one, causing products to stay at the airtightness testing device for too long, prolonging the single testing cycle, resulting in low product testing efficiency. Furthermore, since it uses a tray for feeding and a box for receiving, it cannot be matched with equipment in previous production steps and equipment in subsequent production steps, thus failing to meet the needs of production line production.

[0004] Therefore, it is necessary to design a new technical solution to solve the above problems. Utility Model Content

[0005] In view of the above, this utility model addresses the deficiencies of the existing technology and its main objective is to provide an automatic airtightness testing device. This device comprises two airtightness testing devices, a PPU handling robot, and a synchronous displacement device. The second carrier has a greater number of product placement positions than the first carrier. The PPU handling robot's alternating rapid loading and unloading, combined with the synchronous displacement device's dual-station setup, allows for the simultaneous testing of multiple products, improving testing efficiency. Furthermore, both the loading and unloading modules are equipped with two first X-axis moving mechanisms, each with a first carrier that can move along the Y-axis. This facilitates easy docking of the first carrier with equipment in preceding and subsequent production steps. The two first carriers can also cross-feed or unload materials, reducing waiting time and further improving testing efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An automatic airtightness testing device includes a machine base and a feeding module, an airtightness testing module, and a discharging module arranged at equal intervals along the X-axis on the machine base; wherein:

[0008] Both the loading module and the unloading module have a transfer station and two transfer stations located on both sides of the transfer station along the Y-axis. A transfer station is provided between the transfer station and the transfer station. The transfer station, the transfer station, and the transfer station are arranged at equal intervals along the Y-axis.

[0009] The transfer station is provided with a first X-axis moving mechanism on both sides of the Y-axis. The first X-axis moving mechanism is provided with a first carrier and a Y-axis moving mechanism that drives the first carrier to move along the Y-axis. The Y-axis moving mechanism drives the first carrier to move back and forth between the transfer station and the first X-axis moving mechanism.

[0010] The transfer station is equipped with a second carrier and a second X-axis moving mechanism that drives the second carrier to move along the X-axis.

[0011] Both the loading module and the unloading module are equipped with PPU handling robots. The PPU handling robots are equipped with four first picking and placing components arranged at equal intervals. The PPU handling robots are used to alternately transport the products on the first carrier to two second carriers. The number of product placement positions on the second carriers is greater than the number of product placement positions on the first carriers.

[0012] The air tightness testing module is equipped with two air tightness testing devices and two synchronous displacement devices arranged along the Y-axis. The synchronous displacement devices are used to place the product on the second carrier of the feeding module onto the air tightness testing device and at the same time place the product on the air tightness testing device onto the second carrier of the unloading module.

[0013] A defective product unloading station is provided between the transfer station and the intermediate station of the unloading module. The PPU handling robot of the unloading module can selectively stop the first picking and placing component above the defective product unloading station based on the detection information of the airtightness detection device.

[0014] As a preferred embodiment, the transfer station is equipped with a positioning seat for placing products, and the first carrier, the positioning seat, and the second carrier are set at the same height.

[0015] As a preferred embodiment, the first X-axis moving mechanism includes a first X-axis moving component and a first X-axis moving seat. The Y-axis moving mechanism is disposed on the first X-axis moving seat, and the first X-axis moving component drives the Y-axis moving mechanism to move along the X-axis through the first X-axis moving seat.

[0016] As a preferred embodiment, the input end of the first X-axis moving component of the feeding module and the output end of the first X-axis moving component of the unloading module both extend outward beyond the machine tool.

[0017] As a preferred embodiment, the Y-axis moving mechanism includes a first Y-axis moving component and a connecting block. The first carrier is disposed on the connecting block, and the first Y-axis moving component drives the first carrier to move along the Y-axis through the connecting block.

[0018] As a preferred embodiment, the second X-axis moving mechanism includes a second X-axis moving component and a second X-axis moving seat. The second seat is disposed on the second X-axis moving seat, and the second X-axis moving component drives the second seat to move along the X-axis through the second X-axis moving seat.

[0019] As a preferred embodiment, the airtightness testing device includes an airtightness tester and a product fixing mechanism. The product fixing mechanism includes a third carrier, a blocking component, a pressing component, and an inflation component. The blocking component and the inflation component are arranged opposite to each other, and the airtightness tester is connected to the inflation component.

[0020] As a preferred embodiment, the blocking assembly includes a blocking block and a first cylinder that drives the blocking block to move along the Y-axis. The pressing assembly is disposed on the top of the blocking block. The first cylinder drives the blocking block to move along the Y-axis, thereby driving the pressing assembly to move along the Y-axis. The pressing assembly includes a pressing block and a second cylinder that drives the pressing block to move along the Y-axis. The inflation assembly includes a connector for inserting the product and a third cylinder that drives the connector to move along the Y-axis. The airtightness tester is connected to the connector.

[0021] As a preferred embodiment, the machine base is provided with a support frame, two air tightness testers are sequentially arranged on the top of the support frame along the X-axis, two PPU handling robots are respectively arranged on both sides of the support frame along the X-axis, two synchronous displacement devices are respectively arranged on both sides of the support frame along the Y-axis, the product fixing mechanism is arranged on a sliding seat, the sliding seat is slidably arranged on the machine base along the Y-axis, the machine base is provided with a fixing component for fixing the sliding seat on the side, and the end of the product fixing mechanism near the support frame is located below the synchronous displacement device.

[0022] As a preferred embodiment, the synchronous displacement device includes a third X-axis moving component, an X-axis sliding plate disposed on the third X-axis moving component, a Z-axis moving component disposed on the X-axis sliding plate, and a Z-axis sliding plate connected to the Z-axis moving component. The Z-axis sliding plate is provided with two sets of second picking and placing components that match the product placement positions on the second carrier.

[0023] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:

[0024] The main features include two airtightness testing devices, a PPU handling robot, and a synchronous displacement device. The second carrier has more product placement positions than the first carrier. The PPU handling robot's alternating rapid loading and unloading, combined with the synchronous displacement device and the dual-station setup, allows for simultaneous testing of multiple products, improving efficiency. Both the loading and unloading modules have two first X-axis moving mechanisms, each with a first carrier that can move along the Y-axis. This facilitates docking of the first carrier with equipment from preceding and subsequent production steps. Furthermore, the two first carriers can cross-feed or unload materials, reducing waiting time and further enhancing testing efficiency.

[0025] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0026] Figure 1 This is a perspective view of a preferred embodiment of the present utility model;

[0027] Figure 2 This is a partial assembly diagram of a preferred embodiment of the present utility model;

[0028] Figure 3 yes Figure 1 A magnified view of a section at point A in the middle;

[0029] Figure 4 yes Figure 2 A magnified view of a section at point B in the middle;

[0030] Figure 5 This is a three-dimensional schematic diagram of a preferred embodiment of the present invention with a cover.

[0031] Explanation of reference numerals in the attached diagram:

[0032] 10. Machine base; 20. Feeding module;

[0033] 30. Air tightness testing module; 31. Air tightness testing device;

[0034] 311. Air tightness tester; 312. Product fixing mechanism;

[0035] 313. Third carrier; 314. Blocking assembly;

[0036] 3141, stop block; 3142, first cylinder;

[0037] 315. Clamping assembly; 3151. Clamping block;

[0038] 3152, Second cylinder; 316, Inflation assembly;

[0039] 3161. Connector; 3162. Third cylinder;

[0040] 317. Sliding seat; 318. Fixing component;

[0041] 32. Synchronous displacement device; 321. Third X-axis moving assembly;

[0042] 322. X-axis sliding plate; 323. Z-axis moving assembly;

[0043] 324. Z-axis sliding plate; 325. Second material handling assembly;

[0044] 40. Material unloading module; 50. Transfer station;

[0045] 51. First X-axis moving mechanism; 511. First X-axis moving assembly;

[0046] 512, First X-axis movable seat; 52, First carrier;

[0047] 53. Y-axis moving mechanism; 531. First Y-axis moving component;

[0048] 532. Connecting block; 60. Transfer station;

[0049] 61. Second carrier; 62. Second X-axis moving mechanism;

[0050] 621. Second X-axis moving assembly; 622. Second X-axis moving seat;

[0051] 623. Waiting workstation; 70. Transfer workstation;

[0052] 71. Positioning seat; 80. PPU handling robot;

[0053] 81. First material handling assembly; 90. Support frame;

[0054] 100. Defective product unloading station; 1001. Storage box;

[0055] 110. Machine cover. Detailed Implementation

[0056] First, it should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0057] Please refer to Figures 1 to 5 As shown, it illustrates the specific structure of a preferred embodiment of the present invention, including a machine platform 10 and a feeding module 20, an airtightness detection module 30, and a discharging module 40 arranged sequentially and at equal intervals along the X-axis on the machine platform 10.

[0058] Both the loading module 20 and the unloading module 40 have a transfer station 50 and two transfer stations 60 located on both sides of the transfer station 50 along the Y-axis. A transfer station 70 is provided between the transfer station 60 and the transfer station 50. The transfer station 60, the transfer station 50, and the transfer station 70 are arranged at equal intervals along the Y-axis.

[0059] The transfer station 50 is provided with a first X-axis moving mechanism 51 on both sides of the Y-axis. The first X-axis moving mechanism 51 is provided with a first carrier 52 and a Y-axis moving mechanism 53 that drives the first carrier 52 to move along the Y-axis. The Y-axis moving mechanism 53 drives the first carrier 52 to move back and forth between the transfer station 50 and the first X-axis moving mechanism 51.

[0060] See Figure 3 As shown, the first X-axis moving mechanism 51 includes a first X-axis moving component 511 and a first X-axis moving seat 512. The Y-axis moving mechanism 53 is disposed on the first X-axis moving seat 512. The first X-axis moving component 511 drives the Y-axis moving mechanism 53 to move along the X-axis through the first X-axis moving seat 512. The Y-axis moving mechanism 53 includes a first Y-axis moving component 531 and a connecting block 532. The first carrier 52 is disposed on the connecting block 532. The first Y-axis moving component 531 drives the first carrier 52 to move along the Y-axis through the connecting block 532.

[0061] In this embodiment, the first X-axis moving component 511 is a servo electric cylinder, and the Y-axis moving mechanism 53 is a pneumatic cylinder. The Y-axis moving mechanism 53 is designed to facilitate docking and prevent collisions between the two Y-axis moving mechanisms 53. It can also reduce the distance between the two first X-axis moving components 511, making the structure more compact. At the same time, it allows the two first carriers 52 to dock alternately, further improving efficiency.

[0062] The transfer station 60 is equipped with a second carrier 61 and a second X-axis moving mechanism 62 that drives the second carrier 61 to move along the X-axis; specifically, see [link to relevant documentation]. Figure 1 and Figure 3 As shown, the second X-axis moving mechanism 62 includes a second X-axis moving component 621 and a second X-axis moving seat 622. The second carrier 61 is disposed on the second X-axis moving seat 622. The second X-axis moving component 621 drives the second carrier 61 to move along the X-axis through the second X-axis moving seat 622. The transfer station 70 is provided with a positioning seat 71 for placing products. The first carrier 52, the positioning seat 71, and the second carrier 61 are all set at the same height.

[0063] In this embodiment, a waiting station 623 is provided at one end of the second X-axis moving component 621 near the airtightness detection module 30. The second carrier 61 of the loading module 20 will move to the waiting station 623 after loading the material for the airtightness detection module 30 to pick up the material, and the second carrier 61 of the unloading module 40 will move to the waiting station 623 for the airtightness detection module 30 to unload the material; the second X-axis moving component 621 is a servo electric cylinder.

[0064] Both the loading module 20 and the unloading module 40 are equipped with PPU handling robots 80. Each PPU handling robot 80 has four equally spaced first picking and placing components 81. The PPU handling robot 80 is used to alternately transport products from the first carrier 52 to two second carriers 61. The number of product placement positions on the second carriers 61 is greater than the number of product placement positions on the first carriers 52. The PPU handling robot 80 moves in an inverted U-shape, which is a mature existing technology and will not be described in detail here.

[0065] See Figure 3 As shown, the first pick-and-place component 81 is a suction head. For the feeding module 20, the two first pick-and-place components 81 located in the middle are used to pick up materials from the first carrier 52 and place them onto the positioning seat 71, while the two first pick-and-place components 81 located on both sides are used to pick up materials from the positioning seat 71 and place them onto the second carrier 61. While the two rear first pick-and-place components 81 are feeding materials onto the second carrier 61 and the positioning seat 71 respectively, the two front first pick-and-place components 81 will pick up materials from the first carrier 52 and the positioning seat 71. This achieves alternating feeding between the two stations. Both the first carrier 52 and the second carrier 61 will move along the X-axis, facilitating picking up materials from the first carrier 52 and feeding materials onto the second carrier 61. (See reference...) Figure 2As shown, the material feeding and unloading of the unloading module 40 is the opposite of that of the loading module 20, so it will not be described in detail.

[0066] The air tightness testing module 30 is provided with two air tightness testing devices 31 and two synchronous displacement devices 32 arranged along the Y-axis. The synchronous displacement device 32 is used to place the product on the second carrier 61 of the feeding module 20 onto the air tightness testing device 31 and at the same time place the product on the air tightness testing device 31 onto the second carrier 61 of the unloading module 40.

[0067] See Figure 2 and Figure 4 As shown, the airtightness testing device 31 includes an airtightness tester 311 and a product fixing mechanism 312. The product fixing mechanism 312 includes a third carrier 313, a blocking component 314, a pressing component 315, and an inflation component 316. The blocking component 314 and the inflation component 316 are arranged opposite to each other, and the airtightness tester 311 is connected to the inflation component 316. The blocking component 314 includes a blocking block 3141 and a first cylinder 3142 that drives the blocking block 3141 to move along the Y-axis. The pressing component 315... 15 is disposed on the top of the stop block 3141. The first cylinder 3142 drives the stop block 3141 to move along the Y-axis, thereby driving the pressing assembly 315 to move along the Y-axis. The pressing assembly 315 includes a pressing block 3151 and a second cylinder 3152 that drives the pressing block 3151 to move along the Y-axis. The inflation assembly 316 includes a connector 3161 for inserting the product and a third cylinder 3162 that drives the connector 3161 to move along the Y-axis. The air tightness tester 311 is connected to the connector 3161.

[0068] Specifically, the machine base 10 is provided with a support frame 90, two air tightness testers 311 are sequentially arranged on the top of the support frame 90 along the X-axis, two PPU handling robots 80 are respectively arranged on both sides of the support frame 90 along the X-axis, two synchronous displacement devices 32 are respectively arranged on both sides of the support frame 90 along the Y-axis, and the product fixing mechanism 312 is arranged on a sliding seat 317. The sliding seat 317 is slidably arranged on the machine base 10 along the Y-axis. The machine base 10 is provided with a fixing component 318 for fixing the sliding seat 317 on the side. The fixing component 318 can be a clamp. The end of the product fixing mechanism 312 near the support frame 90 is located below the synchronous displacement device 32.

[0069] See Figure 2As shown, the synchronous displacement device 32 includes a third X-axis moving component 321, an X-axis sliding plate 322 disposed on the third X-axis moving component 321, a Z-axis moving component 323 disposed on the X-axis sliding plate 322, and a Z-axis sliding plate 324 connected to the Z-axis moving component 323. The Z-axis sliding plate 324 is provided with two sets of second pick-and-place components 325 that match the product placement positions on the second carrier 61. The second pick-and-place components 325 are suction heads. The unloading module 40 A defective product unloading station 100 is set between the transfer station 60 and the intermediate transfer station 70. The defective product unloading station 100 is equipped with a storage box 1001, which is fixed to the side of the positioning seat 71. The PPU handling robot 80 of the unloading module 40 can selectively stop the first picking and placing component 81 above the defective product unloading station 100 based on the detection information of the air tightness detection device 31. When the air tightness detection is poor, the first picking and placing component 81 will place the product into the storage box.

[0070] Specifically, the two sets of second pick-up and drop-off components 325 pick up products from the second carrier 61 at the waiting station 623 of the loading module 20 while simultaneously picking up products from the third carrier 313. During unloading, the products picked up from the waiting station 623 of the loading module 20 are placed on the third carrier 313, and the products picked up from the third carrier 313 are placed on the second carrier 61 at the waiting station 623 of the unloading module 40.

[0071] In this embodiment, the second carrier 61 and the third carrier 313 have 8 product placement positions, and the first carrier 52 has 4 product placement positions; see reference Figure 5 As shown, the machine base 10 is covered with a machine cover 110, and the input end of the first X-axis moving component 511 of the feeding module 20 and the output end of the first X-axis moving component 511 of the unloading module 40 both extend outward beyond the machine cover 110.

[0072] The key design feature of this utility model is:

[0073] The main features include two airtightness testing devices, a PPU handling robot, and a synchronous displacement device. The second carrier has more product placement positions than the first carrier. The PPU handling robot's alternating rapid loading and unloading, combined with the synchronous displacement device and the dual-station setup, allows for simultaneous testing of multiple products, improving efficiency. Both the loading and unloading modules have two first X-axis moving mechanisms, each with a first carrier that can move along the Y-axis. This facilitates docking of the first carrier with equipment from preceding and subsequent production steps. Furthermore, the two first carriers can cross-feed or unload materials, reducing waiting time and further enhancing testing efficiency.

[0074] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. An air tightness automatic detection apparatus characterized by comprising: The machine table and the feeding module, the air tightness detection module and the discharging module arranged along the X axis are sequentially arranged at equal intervals. The feeding module and the discharging module are provided with a transfer station, two transfer stations arranged on the Y axis of the transfer station, and a transfer station arranged between the transfer stations and the transfer station. The first X axis moving mechanism is provided with a first carrier and a Y axis moving mechanism for driving the first carrier to move along the Y axis. The second X axis moving mechanism is provided with a second carrier and a second X axis moving mechanism for driving the second carrier to move along the X axis. The PPU carrying manipulator is provided with four first material taking and placing assemblies arranged at equal intervals. The air tightness detection module is provided with two air tightness detection devices and two synchronous displacement devices arranged along the Y axis. The transfer station of the discharging module is provided with a defective product discharging station between the transfer station and the transfer station.

2. The automatic leak detection apparatus of claim 1, wherein: The transfer station is provided with a positioning seat for placing products.

3. The automatic leak detection apparatus of claim 1, wherein: The first X axis moving mechanism includes a first X axis moving assembly and a first X axis moving seat.

4. The automatic leak detection apparatus of claim 3, wherein: The Y axis moving mechanism includes a first Y axis moving assembly and a connecting block.

5. The automatic leak detection apparatus of claim 1, wherein: The second X axis moving mechanism includes a second X axis moving assembly and a second X axis moving seat.

6. The automatic leak detection apparatus of claim 1, wherein: The air tightness detection device includes an air tightness detector and a product fixing mechanism.

7. The automatic leak detection apparatus of claim 1, wherein: The product fixing mechanism includes a third carrier, a blocking assembly, a pressing assembly and an inflation assembly.

8. The automatic leak detection apparatus of claim 7, wherein: The resisting assembly comprises a resisting block and a first cylinder for driving the resisting block to move along the Y axis, the pressing assembly is arranged on the top of the resisting block, the first cylinder drives the resisting block to move along the Y axis and further drives the pressing assembly to move along the Y axis, the pressing assembly comprises a pressing block and a second cylinder for driving the pressing block to move along the Y axis, the inflating assembly comprises a plug-in part for inserting the product and a third cylinder for driving the plug-in part to move along the Y axis, and the air tightness detector is connected to the plug-in part.

9. The automatic leak detection apparatus of claim 7, wherein: The machine table is provided with a support frame body, two air tightness detectors are sequentially arranged on the top of the support frame body along the X axis, two PPU carrying manipulators are respectively arranged on the two sides of the support frame body along the X axis, two synchronous displacement devices are respectively arranged on the two sides of the support frame body along the Y axis, the product fixing mechanism is arranged on a sliding seat, the sliding seat is slidably arranged on the machine table along the Y axis, the machine table is provided with a fixing assembly beside the sliding seat for fixing the sliding seat, and the end of the product fixing mechanism close to the support frame body is located below the synchronous displacement device.

10. The automatic leak detection apparatus of claim 1, wherein: The synchronous displacement device comprises a third X-axis moving assembly, an X-axis sliding plate arranged on the third X-axis moving assembly, a Z-axis moving assembly arranged on the X-axis sliding plate, and a Z-axis sliding plate connected to the Z-axis moving assembly, and two groups of second material taking and placing assemblies matched with the product placing positions on the second carrier seat are arranged on the Z-axis sliding plate.