Top cover assembling machine

Abstract

The invention relates to a top cover assembling machine, relates to the technical field of assembling equipment, and aims to solve the problem that the degree of finish of a top cover is inconvenient to detect. The top cover assembling machine comprises a rack and a feeding trolley which is arranged at the end of the rack and used for bearing workpieces, a plurality of sets of material bearing discs used for bearing the workpieces are arranged on the feeding trolley in the height direction in a stacked mode, and a limiting assembly used for limiting the positions of the material bearing discs is arranged on the rack; the rack is provided with a detection table used for bearing a workpiece, and the rack is provided with a transfer assembly used for transferring the workpiece; a detection opening is formed in the detection table in a penetrating mode, a positioning assembly used for positioning a workpiece is arranged on the detection table, and a detection piece used for detecting the smoothness of the workpiece is arranged at the bottom of the detection table. The device has the effect of efficiently detecting the smoothness of the top cover.

Description

Technical Field

[0001] This application relates to the field of assembly equipment technology, and in particular to a top cover assembly machine. Background Technology

[0002] In the PCB manufacturing process, the assembly of the top cover is a critical step that directly affects the product's sealing performance and appearance quality. Currently, with the miniaturization and high-density development of electronic devices, higher requirements are being placed on the assembly precision and efficiency of the top cover on the PCB.

[0003] In related technologies, common solutions include manual assembly, semi-automatic assembly equipment, and fully automatic assembly equipment. Manual assembly is highly flexible but inefficient and inconsistent; semi-automatic assembly equipment improves efficiency through mechanical assistance but still requires human intervention; fully automatic assembly equipment is highly efficient but usually lacks online detection capabilities, leading to defective products flowing into subsequent processes.

[0004] Regarding the aforementioned technologies, the main drawback of the existing technologies lies in the lack or inadequacy of the inspection process, which makes it difficult to inspect the smoothness of the top cover in real time, resulting in unstable assembly quality, high rework rate, and impact on overall production efficiency. Therefore, improvements are needed. Summary of the Invention

[0005] To efficiently test the smoothness of the top cover, this application provides a top cover assembly machine.

[0006] The top cover assembly machine provided in this application adopts the following technical solution: A top cover assembly machine includes a frame and a loading trolley disposed at the end of the frame for carrying workpieces. Several sets of workpiece-carrying trays are stacked along the height direction on the loading trolley. A limiting component for restricting the position of the workpiece-carrying trays is disposed on the frame. An inspection table for carrying workpieces is disposed on the frame, and a transfer component for transferring workpieces is disposed on the frame. An inspection port is provided through the inspection table, and a positioning component for positioning the workpiece is disposed on the inspection table. A detection element for detecting the surface finish of the workpiece is disposed at the bottom of the inspection table.

[0007] By adopting the above technical solution, the loading trolley moves the stacked workpieces to the frame, and the limiting component restricts the position of the loading tray so that the transfer component can accurately transfer the workpieces. The workpieces are transferred to the inspection table, and the positioning component is used to position the workpieces so that the inspection component can quickly and accurately detect the surface finish of the workpieces, thus achieving efficient inspection of the surface finish of the top cover.

[0008] Preferably, the limiting assembly includes a limiting frame, guide wheels, limiting cylinders, and limiting blocks; the limiting frame is located at the end of the frame facing the loading trolley, and the loading trolley is located inside the limiting frame; the guide wheels are rotatably located inside the limiting frame, and the guide wheels can abut against the side wall of the loading trolley; the limiting cylinders are located at the top of the limiting frame, and the limiting cylinders are distributed at intervals along the circumference of the loading tray; the limiting blocks are located at the output end of each set of limiting cylinders to engage and limit the loading tray.

[0009] By adopting the above technical solution, the guide wheel facilitates the guidance of the mobile loading trolley to move the loading trolley into the limiting frame, and the limiting cylinder and limiting block are used to accurately position the top loading tray, so that the transfer component can transfer the workpiece inside the loading tray.

[0010] Preferably, the limiting assembly further includes a locking cylinder, a locking shaft, a locking plate, and a guide sleeve; the locking cylinder is disposed on the limiting frame, the locking shaft is rotatably disposed at the output end of the locking cylinder, and the locking plate is disposed at the end of the locking shaft away from the locking cylinder, so as to restrict the loading trolley from leaving the limiting frame; the guide sleeve is disposed on the limiting frame, and the output end of the locking cylinder passes through the interior of the guide sleeve, and the outer peripheral wall of the guide sleeve has a guide channel through which the locking shaft passes, and the guide channel is spirally arranged along the length direction of the guide sleeve to guide the locking shaft to rotate.

[0011] By adopting the above technical solution, the output end of the locking cylinder retracts, driving the locking shaft and locking plate to rotate along the guide channel, and causing the locking plate to abut against the side wall of the loading carriage away from the limit frame, thereby restricting the loading carriage inside the limit frame, realizing the limitation of the position of the loading carriage, thus facilitating the transfer of workpieces inside the loading carriage and reducing the phenomenon of the loading carriage moving randomly during the workpiece transfer process.

[0012] Preferably, the transfer assembly includes a fixed frame, a movable slide, a translation slide, a lifting slide, and an adsorption component; the fixed frame is disposed on the machine frame, the movable slides are distributed opposite to each other on the fixed frame, and the movable slides extend along the length direction of the machine frame; the translation slide is disposed on the movable end of the movable slide, and the translation slide extends along the width direction of the machine frame; the lifting slide is disposed on the movable end of the translation slide, and the lifting slide extends along the height direction of the machine frame; the adsorption component is disposed on the movable end of the lifting slide for adsorbing workpieces.

[0013] By adopting the above technical solution, the adsorption component adsorbs the workpiece inside the loading car, the moving slide table drives the translation slide table and the adsorption component to move along the length direction of the frame, the translation slide table drives the lifting slide table and the adsorption component to slide along the width direction of the frame, and the lifting slide table drives the adsorption component to move up and down, so as to facilitate the transfer of the adsorbed workpiece.

[0014] Preferably, the positioning assembly includes a first positioning frame, a second positioning frame, a first positioning rod, a second positioning rod, and a positioning cylinder; both the first and second positioning frames are disposed on the inspection table, the first positioning frame is disposed at one end of the length direction of the inspection port, and the first positioning rod is slidably disposed at the other end of the inspection port; the second positioning frame is disposed on one side of the width direction of the inspection port; the second positioning rod is slidably disposed on the other side of the inspection port; the positioning cylinder is disposed on the inspection table, and the first and second positioning rods are respectively disposed corresponding to the positioning cylinder, the positioning cylinder is used to drive the corresponding first and second positioning rods to push the workpiece to move, so as to drive the workpiece to abut against the first and second positioning frames.

[0015] By adopting the above technical solution, the positioning cylinder drives the first positioning rod to push the workpiece against the first positioning frame, and the positioning cylinder drives the second positioning rod to push the workpiece against the second positioning frame, so as to position the workpiece at the inspection port, thereby facilitating the inspection component to accurately detect the surface finish data of the workpiece through the inspection port.

[0016] Preferably, the end of the frame facing the loading trolley is provided with a unloading trolley, which is located on the side of the loading trolley; the frame is provided with a support assembly, which is respectively provided at the loading trolley and the unloading trolley to support all the material trays; the frame is provided with an unloading assembly for transferring empty material trays inside the loading trolley to the unloading trolley.

[0017] By adopting the above technical solution, the support component supports all the loading trays, and the unloading component, in conjunction with the support component, moves the loading trays controlled by the unloading component inside the loading carriage after the internal inspection is completed to the support component inside the unloading carriage, so as to facilitate the batch inspection of the workpieces on the remaining loading trays inside the loading carriage.

[0018] Preferably, the support assembly includes a support frame and a support slide; the support frame is slidably disposed at the end of the frame along the height direction of the frame to support all the material trays; the support slide is disposed at the end of the frame along the height direction of the frame to drive the support frame to move up and down.

[0019] By adopting the above technical solution, the supporting slide drives the supporting frame to move up and down to support the material trays inside the loading or unloading car, and drives all the material trays to move up and down.

[0020] Preferably, the unloading assembly includes an unloading slide, an unloading frame, a lifting cylinder, an extension arm, a lifting plate, and an unloading cylinder; the unloading slide is located at the end of the frame facing the loading trolley, and extends along the width of the frame; the unloading frame is slidably mounted on the moving end of the unloading slide, and the lifting cylinder is located between the unloading frame and the moving end of the unloading slide to drive the unloading frame to move up and down; the extension arm is located on the side wall of the unloading frame facing the loading trolley, and the extension arms are distributed opposite to each other on both sides of the unloading trolley; the lifting plate is slidably mounted on the side wall of each set of extension arms facing the loading tray, and the side wall of the loading tray has a snap-fit ​​groove for the lifting plate to abut; the unloading cylinder is located between the extension arm and the lifting plate to drive the lifting plate closer to or away from the loading tray.

[0021] By adopting the above technical solution, the feeding cylinder drives the lifting plate to abut into the snap-fit ​​groove, and the lifting cylinder drives the feeding frame, extension arm, lifting plate and loading tray to move upward. In conjunction with the feeding slide, the lifted loading tray is placed inside the feeding car, realizing the automated transfer of the loading tray inside the feeding car to the feeding car.

[0022] Preferably, a plasma gun for facing the workpiece is provided on one side of the testing station, and a rotating assembly for driving the plasma gun to rotate around the workpiece is provided on the frame.

[0023] By adopting the above technical solution, the rotating component drives the air gun to rotate, so as to carry out comprehensive dust removal and static electricity removal treatment on the workpiece.

[0024] Preferably, the rotating assembly includes a rotating disk, a mounting rod, and a rotating motor; the rotating disk is rotatably mounted on the frame, the mounting rod is mounted on the rotating disk, the plasma gun is tilted and mounted on the mounting rod, and the rotating motor is located inside the frame to drive the rotating disk to rotate.

[0025] By adopting the above technical solution, the output end of the rotating motor drives the rotating disk and the mounting plate to rotate, so that the tilted plasma gun rotates around the workpiece to perform comprehensive dust removal and static electricity removal treatment on the workpiece.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. The top cover assembly machine mentioned in this solution can perform batch surface finish inspection on top covers, improving inspection efficiency and quality; compared with existing technologies, it integrates surface finish inspection function, monitors top cover quality in real time, and reduces defect rate; through high-precision positioning and inspection, it ensures the stability and consistency of assembly quality. 2. By setting up a loading trolley to move the stacked workpieces to the frame, the limiting component restricts the position of the loading tray so that the transfer component can accurately transfer the workpieces. The workpieces are transferred to the inspection table, and the positioning component is used to position the workpieces so that the inspection component can quickly and accurately detect the surface finish of the workpieces, thus achieving efficient inspection of the surface finish of the top cover. 3. By setting up a support component to support all the loading trays, the unloading component, in conjunction with the support component, moves the loading trays that have been inspected inside the loading carriage to the support component inside the unloading carriage, so as to facilitate batch inspection of the workpieces on the remaining loading trays inside the loading carriage. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a top cover assembly machine according to an embodiment of this application.

[0028] Figure 2 This is a schematic diagram illustrating the structure of the testing station.

[0029] Figure 3 This is a structural diagram illustrating the connection between the limit component and the loading trolley.

[0030] Figure 4 This is a structural diagram illustrating the connection between the limiting component and the unloading trolley.

[0031] Figure 5 It is used to embody Figure 4 An enlarged schematic diagram of the structure at point A in the middle.

[0032] Figure 6 This is a structural schematic diagram used to illustrate the rotating assembly.

[0033] Explanation of reference numerals in the attached figures: 1. Frame; 11. Loading trolley; 12. Carrying tray; 121. Snap-fit ​​groove; 13. Inspection table; 131. Inspection port; 132. Inspection piece; 14. Unloading trolley; 15. Plasma air gun; 2. Limiting assembly; 21. Limiting frame; 22. Guide wheel; 23. Limiting cylinder; 24. Limiting block; 25. Locking cylinder; 26. Locking shaft; 27. Locking plate; 28. Guide sleeve; 281. Guide channel; 3. Transfer assembly; 31. Fixed frame; 32. Moving slide; 33. Translation slide 34. Lifting slide; 35. Adsorption component; 4. Positioning assembly; 41. First positioning frame; 42. Second positioning frame; 43. First positioning rod; 44. Second positioning rod; 45. Positioning cylinder; 5. Support assembly; 51. Support frame; 52. Supporting slide; 6. Unloading assembly; 61. Unloading slide; 62. Unloading frame; 63. Lifting cylinder; 64. Extension arm; 65. Lifting plate; 66. Unloading cylinder; 7. Rotating assembly; 71. Rotating disk; 72. Mounting rod; 73. Rotating motor. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0035] This application discloses a top cover assembly machine for efficiently detecting the smoothness of the top cover.

[0036] Reference Figure 1 and Figure 2 A top cover assembly machine includes a frame 1 placed on the ground and a loading trolley 11 placed at the end of the machine body. Several sets of carrying trays 12 are stacked and installed inside the loading trolley 11 along its height direction to separate and carry workpieces. In this embodiment, the workpiece is a top cover. A limiting component 2 is installed at the end of the frame 1 to limit the position of the carrying trays 12. A detection table 13 for carrying workpieces is installed on the frame 1, and a transfer component 3 for transferring workpieces is also installed on the frame 1.

[0037] Reference Figure 1 and Figure 2 The inspection table 13 has a through-hole inspection port 131, and a positioning component 4 for positioning the workpiece is installed around the inspection port 131. A detection component 132 for detecting the surface finish of the workpiece is installed at the bottom of the inspection table 13. In this embodiment, the detection component 132 can be a camera controlled by a PLC controller to detect the surface finish of the workpiece through video recording and transmit the data to the PLC controller via electrical signals. Workpieces with surface finish meeting the specifications are then proceeded to the next step, while workpieces with surface finish not meeting the specifications are returned to their original positions.

[0038] Reference Figure 3 and Figure 4 The limiting assembly 2 includes a limiting frame 21, guide wheels 22, a limiting cylinder 23, a limiting block 24, a locking cylinder 25, a locking shaft 26, a locking plate 27, and a guide sleeve 28. The limiting frame 21 is fixedly installed at the end of the frame 1 facing the loading trolley 11, and the side wall of the limiting frame 21 away from the frame 1 has a groove for the loading trolley 11 to slide into. The guide wheels 22 are rotatably mounted on the limiting frame 21 via a rotating shaft, and the guide wheels 22 are spaced apart along the depth direction of the groove. The peripheral wall of each set of guide wheels 22 abuts against the side wall of the loading trolley 11 to guide the movement path of the loading trolley 11.

[0039] Reference Figure 3 and Figure 4 The limiting cylinders 23 are fixedly installed on the top of the limiting frame 21, and the limiting cylinders 23 are distributed at intervals along the circumference of the material tray 12. The limiting blocks 24 are fixedly installed on the output end of each set of limiting cylinders 23, and each set of limiting blocks 24 has a groove on the side wall opposite to the corresponding limiting cylinder 23 for the corner of the material tray 12 to abut, so as to lock and limit the material tray 12.

[0040] Reference Figure 4 and Figure 5 The locking cylinder 25 is fixedly installed on the limit frame 21, the locking shaft 26 is rotatably installed on the output end of the locking cylinder 25, and the locking plate 27 is fixedly installed on the end of the locking shaft 26 away from the locking cylinder 25, so that the locking shaft 26 and the locking plate 27 can rotate around the output end of the locking cylinder 25.

[0041] Reference Figure 4 and Figure 5 The guide sleeve 28 is fixedly installed on the limiting frame 21. In this embodiment, the guide sleeve 28 has a hollow structure, and the output end of the locking cylinder 25 is inserted inside the guide sleeve 28. A guide channel 281 is provided through the outer peripheral wall of the guide sleeve 28 for the locking shaft 26 to pass through. The guide channel 281 is spirally opened along the length direction of the guide sleeve 28 to guide the locking shaft 26 to rotate along the length direction of the guide sleeve 28, so that the locking plate 27 abuts against the side wall of the loading carriage 11 away from the limiting frame 21, thereby restricting the loading carriage 11 inside the limiting frame 21.

[0042] Reference Figure 3 and Figure 4 The transfer assembly 3 includes a fixed frame 31, a movable slide 32, a translational slide 33, a lifting slide 34, and a suction cup 35. In this embodiment, the movable slide 32, the translational slide 33, and the lifting slide 34 are all electric slides, and the suction cup 35 is a mechanical suction cup. The fixed frame 31 is welded and fixed to the top of the frame 1, and the fixed frame 31 extends along the length direction of the frame 1. The movable slides 32 are distributed on both sides of the fixed frame 31 in the width direction, and the movable slides 32 extend along the length direction of the frame 1.

[0043] Reference Figure 3 and Figure 4 The translation slide 33 is fixedly installed on the moving ends of two opposing sets of movable slides 32, and extends along the width direction of the frame 1. The lifting slide 34 is fixedly installed on the moving end of the translation slide 33, and extends along the height direction of the frame 1. The adsorption component 35 is fixedly installed on the moving end of the lifting slide 34 for adsorbing workpieces and moving with the drive of the movable slides 32, translation slide 33 and lifting slide 34.

[0044] Reference Figure 1 and Figure 2The positioning component 4 includes a first positioning frame 41, a second positioning frame 42, a first positioning rod 43, a second positioning rod 44, and two sets of positioning cylinders 45. The first positioning frame 41 and the second positioning frame 42 are both fixedly installed on the top wall of the inspection table 13. The first positioning frame 41 is located at one end of the length direction of the inspection port 131. One set of positioning cylinders 45 is fixedly installed at the other end of the inspection port 131, and the first positioning rod 43 is fixedly installed at the output end of the positioning cylinder 45 facing the first positioning frame 41, so as to drive the workpiece to abut against the first positioning frame 41.

[0045] Reference Figure 1 and Figure 2 The second positioning frame 42 is fixedly installed on one side of the width direction of the detection port 131, and another set of positioning cylinders 45 is fixedly installed on the other side of the width direction of the detection port 131. The second positioning rod 44 is fixedly installed on the output end of the positioning cylinder 45 facing the second positioning frame 42, so as to drive the workpiece to abut against the second positioning frame 42, thereby realizing the positioning of the workpiece on the detection table 13.

[0046] Reference Figure 3 and Figure 4 A discharge carriage 14 is installed at the end of the frame 1 facing the loading carriage 11. The discharge carriage 14 is located on one side of the loading carriage 11 and is located inside the limiting frame 21. A support assembly 5 is installed at the end of the frame 1, and the support assembly 5 is installed at the loading carriage 11 and the discharge carriage 14 respectively to support all the material trays 12.

[0047] Reference Figure 3 and Figure 4 The support assembly 5 includes a support frame 51 and a support slide 52; specifically, the support slide 52 is an electric slide. The support slide 52 is fixedly installed at the end of the frame 1 along the height direction of the frame 1, and the support frame 51 is fixedly installed at the moving end of the support slide 52. The support frame 51 is located at the bottom of all the material trays 12 inside the loading carriage 11 and the unloading carriage 14 to support all the material trays 12.

[0048] Reference Figure 3 and Figure 4 In this embodiment, an infrared sensor controlled by a PLC controller is installed on the top of the limiting frame 21. When the infrared sensor detects that the support frame 51 lifts the loading tray 12 and causes the loading tray at the top of the loading cart 11 to move to the point where it is detected by the infrared sensor, the supporting slide 52 stops working and drives the limiting cylinder 23 and the limiting block 24 to limit the loading tray 12 at the top.

[0049] Reference Figure 3 and Figure 4A feeding assembly 6 is installed on the frame 1 to transfer the empty material tray 12 inside the loading carriage 11 to the unloading carriage 14. The feeding assembly 6 includes a feeding slide 61, a feeding frame 62, a lifting cylinder 63, an extension arm 64, a lifting plate 65, and a feeding cylinder 66. The feeding slide 61 is installed at the end of the frame 1 facing the loading carriage 11 and extends along the width of the frame 1. The lifting cylinder 63 is fixedly installed at the moving end of the feeding slide 61, and the feeding frame 62 is fixedly installed at the output end of the lifting cylinder 63, so that the lifting cylinder 63 drives the feeding frame 62 to move up and down.

[0050] Reference Figure 3 and Figure 4 The extension arms 64 are fixedly installed at both ends of the unloading rack 62 along its length, and are distributed on both sides of the loading trolley 11. Lifting plates 65 are slidably installed on the side wall of each set of extension arms 64 facing the loading tray 12, and the side wall of the loading tray 12 has a locking groove 121 for the lifting plates 65 to abut against. Unloading cylinders 66 are installed between the extension arms 64 and the lifting plates 65. The output end of each unloading cylinder 66 faces the loading tray 12 and is fixedly connected to the corresponding lifting plate 65 to drive the lifting plate 65 closer to or further away from the loading tray 12.

[0051] Reference Figure 1 and Figure 6 A plasma gun 15 is mounted on one side of the inspection table 13 to face the workpiece. A rotating assembly 7 is mounted on the frame 1 to drive the plasma gun 15 to rotate around the workpiece. The rotating assembly 7 includes a rotating disk 71, a mounting rod 72, and a rotating motor 73. The rotating motor 73 is fixedly mounted inside the frame 1, and the rotating disk 71 is fixedly mounted at the output end of the rotating motor 73. The mounting rod 72 extends vertically and is fixedly mounted on the top wall of the rotating disk 71. The plasma gun 15 is obliquely fixed on the mounting rod 72, and the plasma guns 15 are spaced apart along the height direction of the mounting rod 72 to blow plasma onto various parts of the workpiece and perform static electricity removal on the workpiece.

[0052] The implementation principle of a top cover assembly machine according to an embodiment of this application is as follows: The loading trolley 11 is guided by guide wheels 22 to move into the limiting frame 21. The output end of the locking cylinder 25 retracts, causing the locking shaft 26 and locking plate 27 to rotate along the guide channel 281, so that the locking plate 27 abuts against the side wall of the loading trolley 11 away from the limiting frame 21, thereby restricting the loading trolley 11 inside the limiting frame 21. The output end of the limiting cylinder 23 extends, causing the limiting block 24 to limit the material tray 12.

[0053] The movable slide 32 drives the translation slide 33 and the adsorption component 35 to move along the length direction of the frame 1. The translation slide 33 drives the lifting slide 34 and the adsorption component 35 to slide along the width direction of the frame 1. The lifting slide 34 drives the adsorption component 35 to move up and down. The adsorption component 35 adsorbs the workpiece inside the loading car 11 and transfers the adsorbed workpiece to the inspection table 13.

[0054] The positioning cylinder 45 drives the first positioning rod 43 to push the workpiece against the first positioning frame 41, and the positioning cylinder 45 pushes the second positioning rod 44 to push the workpiece against the second positioning frame 42, so as to position the workpiece at the detection port 131 and enable the detection component 132 to perform accurate surface finish data detection on the workpiece, thereby achieving efficient detection of the surface finish of the top cover.

[0055] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A top cover assembly machine, characterized in that: The system includes a frame (1) and a loading trolley (11) located at the end of the frame (1) for carrying workpieces. Several sets of loading trays (12) for carrying workpieces are stacked along the height direction on the loading trolley (11). A limiting component (2) for limiting the position of the loading trays (12) is provided on the frame (1). A detection table (13) for carrying workpieces is provided on the frame (1). A transfer component (3) for transferring workpieces is provided on the frame (1). A detection port (131) is provided through the detection table (13). A positioning component (4) for positioning workpieces is provided on the detection table (13). A detection component (132) for detecting the surface finish of workpieces is provided at the bottom of the detection table (13).

2. The top cover assembly machine according to claim 1, characterized in that: The limiting component (2) includes a limiting frame (21), a guide wheel (22), a limiting cylinder (23), and a limiting block (24). The limiting frame (21) is located at the end of the frame (1) facing the loading trolley (11), and the loading trolley (11) is located inside the limiting frame (21). The guide wheel (22) is rotatably located inside the limiting frame (21), and the guide wheel (22) can abut against the side wall of the loading trolley (11). The limiting cylinder (23) is located at the top of the limiting frame (21), and the limiting cylinders (23) are distributed at intervals along the circumference of the loading tray (12). The limiting block (24) is located at the output end of each set of limiting cylinders (23) to engage and limit the loading tray (12).

3. A top cover assembly machine according to claim 2, characterized in that: The limiting component (2) further includes a locking cylinder (25), a locking shaft (26), a locking plate (27), and a guide sleeve (28); the locking cylinder (25) is disposed on the limiting frame (21), the locking shaft (26) is rotatably disposed at the output end of the locking cylinder (25), and the locking plate (27) is disposed at the end of the locking shaft (26) away from the locking cylinder (25) to limit the loading cart (11) from leaving the limiting frame (21); the guide sleeve (28) is disposed on the limiting frame (21), and the output end of the locking cylinder (25) passes through the inside of the guide sleeve (28). The outer peripheral wall of the guide sleeve (28) is provided with a guide channel (281) for the locking shaft (26) to pass through, and the guide channel (281) is spirally arranged along the length direction of the guide sleeve (28) to guide the locking shaft (26) to rotate.

4. A top cover assembly machine according to claim 1, characterized in that: The transfer assembly (3) includes a fixed frame (31), a movable slide (32), a translation slide (33), a lifting slide (34), and an adsorption component (35). The fixed frame (31) is mounted on the frame (1). The movable slides (32) are relatively distributed on the fixed frame (31) and extend along the length of the frame (1). The translation slide (33) is mounted on the movable end of the movable slide (32) and extends along the width of the frame (1). The lifting slide (34) is mounted on the movable end of the translation slide (33) and extends along the height of the frame (1). The adsorption component (35) is mounted on the movable end of the lifting slide (34) for adsorbing workpieces.

5. A top cover assembly machine according to claim 1, characterized in that: The positioning component (4) includes a first positioning frame (41), a second positioning frame (42), a first positioning rod (43), a second positioning rod (44), and a positioning cylinder (45); the first positioning frame (41) and the second positioning frame (42) are both mounted on the detection table (13), the first positioning frame (41) is located at one end of the length direction of the detection port (131), and the first positioning rod (43) is slidably mounted at the other end of the detection port (131); the second positioning frame (42) is located at the other end of the detection port (131). 31) on one side of the width direction; the second positioning rod (44) is slidably disposed on the other side of the detection port (131); the positioning cylinder (45) is disposed on the detection table (13), and the first positioning rod (43) and the second positioning rod (44) are respectively disposed corresponding to the positioning cylinder (45). The positioning cylinder (45) is used to drive the corresponding first positioning rod (43) and the second positioning rod (44) to push the workpiece to move, so as to drive the workpiece to abut against the first positioning frame (41) and the second positioning frame (42).

6. A top cover assembly machine according to claim 1, characterized in that: The frame (1) is provided with a unloading cart (14) at the end facing the loading cart (11), and the unloading cart (14) is located on one side of the loading cart (11); a support assembly (5) is provided on the frame (1), and the support assembly (5) is respectively provided at the loading cart (11) and the unloading cart (14) to support all the material trays (12); the frame (1) is provided with an unloading assembly (6) for transferring the empty material trays (12) inside the loading cart (11) to the unloading cart (14).

7. A top cover assembly machine according to claim 6, characterized in that: The support assembly (5) includes a support frame (51) and a support slide (52); the support frame (51) is slidably disposed at the end of the frame (1) along the height direction of the frame (1) to support all the material trays (12); the support slide (52) is disposed at the end of the frame (1) along the height direction of the frame (1) to drive the support frame (51) to move up and down.

8. A top cover assembly machine according to claim 6, characterized in that: The unloading assembly (6) includes an unloading slide (61), an unloading frame (62), a lifting cylinder (63), an extension arm (64), a lifting plate (65), and an unloading cylinder (66); the unloading slide (61) is located at the end of the frame (1) facing the loading trolley (11), and the unloading slide (61) extends along the width direction of the frame (1); the unloading frame (62) is slidably mounted on the moving end of the unloading slide (61), and the lifting cylinder (63) is located between the unloading frame (62) and the moving end of the unloading slide (61) to drive the unloading frame (66) 2) Lifting and lowering movement; the extension arm (64) is set on the side wall of the unloading frame (62) facing the loading trolley (11), and the extension arm (64) is relatively distributed on both sides of the unloading trolley (14); the lifting plate (65) is slidably set on the side wall of each set of extension arms (64) facing the loading tray (12), and the side wall of the loading tray (12) is provided with a snap-fit ​​groove (121) for the lifting plate (65) to abut; the unloading cylinder (66) is set between the extension arm (64) and the lifting plate (65) to drive the lifting plate (65) to move closer to or away from the loading tray (12).

9. A top cover assembly machine according to claim 1, characterized in that: The testing station (13) is provided with a plasma gun (15) for facing the workpiece on one side, and the frame (1) is provided with a rotating assembly (7) for driving the plasma gun (15) to rotate around the workpiece.

10. A top cover assembly machine according to claim 9, characterized in that: The rotating assembly (7) includes a rotating disk (71), a mounting rod (72), and a rotating motor (73); the rotating disk (71) is rotatably mounted on the frame (1), the mounting rod (72) is mounted on the rotating disk (71), the plasma gun (15) is inclinedly mounted on the mounting rod (72), and the rotating motor (73) is located inside the frame (1) to drive the rotating disk (71) to rotate.

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