Thermostat automatic capping device and method

Abstract

The present application relates to the technical field of automatic assembly, and discloses a device and method for automatically assembling a cover on a thermal relay, which comprises a conveying device, a shift fork transfer module, an assembly conveying line and a first automatic cover assembling device. The conveying device can convey the thermal relay to be assembled to a pre-assembly station, the shift fork transfer module can transfer the thermal relay on the pre-assembly station to the assembly conveying line, the assembly conveying line can convey a type of thermal relay to a first assembly station, and the first automatic cover assembling device can install a first cover and a first transparent sheet on the thermal relay at the first assembly station, thereby completing the automatic installation of the cover on the thermal relay. The device and method for automatically assembling a cover on a thermal relay can realize the automatic assembly of the cover and the transparent sheet on the thermal relay, improve the assembly consistency of the thermal relay product, reduce the labor cost and improve the assembly efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automatic assembly, in particular to a device and method for automatically assembling a cover on a thermal relay. BACKGROUND

[0002] In the production process of a thermal relay, a cover and a transparent sheet need to be installed on the top of a shell. At present, these operations are manually completed by skilled workers, which requires a large number of skilled workers and has a high labor intensity. Due to the difference in the technical level of workers, it is difficult to ensure the assembly consistency of the thermal relay product, and the installation efficiency is low.

[0003] Therefore, it is urgent to provide a device and method for automatically assembling a cover on a thermal relay to solve the above problems. SUMMARY

[0004] According to one aspect of the present application, the present application provides a device for automatically assembling a cover on a thermal relay, which can automatically assemble a cover and a transparent sheet on a thermal relay, improve the assembly consistency of the thermal relay product, reduce the labor cost, and improve the assembly efficiency.

[0005] To achieve the above purpose, the present application adopts the following technical solutions:

[0006] The device for automatically assembling a cover on a thermal relay comprises a conveying device, a fork transfer module, an assembly conveying line, and a first automatic cover assembling device. The conveying device can convey a thermal relay to be assembled to a pre-assembly station. The fork transfer module can transfer the thermal relay on the pre-assembly station to the assembly conveying line. The assembly conveying line can convey a thermal relay of a certain model to a first assembly station. The first automatic cover assembling device can install a first cover and a first transparent sheet on the thermal relay located at the first assembly station. The first automatic cover assembling device comprises:

[0007] A first cover feeding assembly comprising a first feeding mechanism and a first distributing mechanism. The first feeding mechanism can convey the first cover to the first distributing mechanism. The first distributing mechanism can convey the first cover to a first picking position.

[0008] A first cover carrying manipulator comprising a first manipulator and a second manipulator. The first manipulator can carry the first cover located at the first picking position to a first assembly position.

[0009] A first transparent sheet conveying mechanism can convey the first transparent sheet to the first assembly position.

[0010] A first assembly mechanism can assemble the first transparent sheet located at the first assembly position and the first cover together to form a first assembly.

[0011] The second mechanical arm is capable of mounting the first component to the thermal relay located at the first assembly station.

[0012] Optionally, the first automatic covering device further comprises:

[0013] A transparent sheet feeding device, comprising a transparent sheet screening machine and a transparent sheet transfer module, the transparent sheet transfer module is capable of carrying the first transparent sheet at the outlet of the transparent sheet screening machine to the first transparent sheet conveying mechanism.

[0014] Optionally, the conveying device comprises:

[0015] A first conveying line capable of conveying the thermal relay to a first feeding position;

[0016] A first transfer mechanical arm capable of carrying the thermal relay at the first feeding position to a first distributing position;

[0017] A second distributing mechanism;

[0018] A first lifting mechanism comprising a first elevator and a first carrier, the second distributing mechanism is capable of pushing the thermal relay at the first distributing position into the first carrier, the first elevator is capable of lifting the first carrier from the bottom to the top so that the thermal relay reaches a first discharging position;

[0019] A first pushing mechanism;

[0020] A second conveying line, the first pushing mechanism is capable of pushing the thermal relay at the first discharging position into the second conveying line;

[0021] A second transfer mechanical arm;

[0022] A second lifting mechanism comprising a second elevator and a second carrier, the second transfer mechanical arm is capable of carrying the thermal relay at the end of the second conveying line to the second carrier, the second elevator is capable of lowering the second carrier from the top to the bottom so that the thermal relay reaches a second discharging position;

[0023] A second pushing mechanism;

[0024] A converging conveying line, the second pushing mechanism is capable of pushing the thermal relay at the second discharging position into the converging conveying line, the converging conveying line is capable of conveying the thermal relay to the pre-assembly station.

[0025] Optionally, the conveying device further comprises:

[0026] A third conveying line capable of conveying the thermal relay to a third discharging position;

[0027] A third transfer robot is capable of carrying the thermal relay at the third discharge position to the merging conveying line.

[0028] Optionally, the application further comprises an assembly detection module, the assembly conveying line is capable of conveying the assembled thermal relay to a first detection position, and the assembly detection module is capable of detecting whether the thermal relay at the first detection position is qualified, and the assembly detection module comprises:

[0029] An assembly detection assembly comprises a first detection link, a second detection link, a first sensor and a second sensor, one end of the first detection link is capable of contacting the first upper cover, and the other end is capable of triggering the first sensor, one end of the second detection link is capable of contacting the first transparent sheet, and the other end is capable of triggering the second sensor.

[0030] A first driving assembly comprises a first driving member and a first push plate, the first driving member is drivingly connected with the first push plate, the first driving member is capable of driving the first push plate to move in a vertical direction, and the first detection link and the second detection link are both slidingly connected with the first push plate, and the first sensor and the second sensor are both fixed on the first push plate.

[0031] When the first driving member drives the first push plate to move downward in the vertical direction, the first detection link and the second detection link are capable of contacting the first upper cover and the first transparent sheet respectively, and sliding relative to the first push plate to trigger the first sensor and the second sensor respectively.

[0032] Optionally, the application further comprises a voltage resistance detection module, the assembly conveying line is capable of conveying the assembled thermal relay to a second detection position, and the voltage resistance detection module is capable of detecting the voltage resistance performance of the thermal relay at the second detection position, and the voltage resistance detection module comprises:

[0033] A second driving assembly comprises a second driving member and a second push plate, the second driving member is drivingly connected with the second push plate, and the second driving member is capable of driving the second push plate to move in a vertical direction.

[0034] A detection probe is insulatively connected with the second push plate at one end, and is electrically connected with an electrode of the thermal relay at the other end, and the detection probe is capable of releasing high and low voltage to the electrode to detect whether the thermal relay is electrically leaked.

[0035] Optionally, the voltage resistance detection module further comprises:

[0036] The tripping assembly includes a third driving member and a push rod. The fixed end of the third driving member is fixed to the second push plate, and the output end of the third driving member is driven to the push rod. The output end of the third driving member can drive the push rod to move vertically to press the tripping button of the thermal relay, so as to trip the thermal relay.

[0037] Optionally, it also includes a defective product recycling module for recycling defective products, the defective product recycling module comprising:

[0038] A recycling conveyor line is used to transport the defective thermal relays;

[0039] A defective product transfer robot is capable of moving the defective thermal relays from the assembly conveyor line to the recycling conveyor line.

[0040] Optionally, the assembly line also includes a second automatic cover mounting device, wherein the assembly conveyor line is capable of conveying another type of the thermal relay to a second assembly station, and the second automatic cover mounting device is capable of mounting a second upper cover and a second transparent sheet onto the thermal relay located at the second assembly station. The second automatic cover mounting device includes:

[0041] The second upper cover feeding assembly includes a second feeding mechanism and a third distributing mechanism. The second feeding mechanism can convey the second upper cover to the third distributing mechanism, and the third distributing mechanism can convey the second upper cover to the second material taking position.

[0042] The second upper cover transport robot includes a third robot and a fourth robot. The third robot is capable of transporting the second upper cover from the second picking position to the second assembly position.

[0043] A second transparent sheet conveying mechanism is used to convey the second transparent sheet to the second assembly position;

[0044] A second assembly mechanism is used to assemble the second transparent sheet and the second upper cover together to form a second component;

[0045] The fourth robotic arm is capable of installing the second component on the second assembly position onto a different type of thermal relay.

[0046] According to another aspect of the present invention, the present invention provides a method for automatically installing a cover on a thermal relay, the method being implemented based on the automatic cover installation device for a thermal relay described in any of the above technical solutions, and comprising the following steps:

[0047] The conveyor transports the thermal relays to be assembled to the pre-assembly station;

[0048] The shift fork transfer module transfers the thermal relay located at the pre-assembly station to the assembly conveyor line;

[0049] The assembly conveyor line transports the thermal relay to the first assembly station;

[0050] The first feeding mechanism conveys the first upper cover to the first distributing mechanism;

[0051] The first material distribution mechanism transports the first upper cover to the first material receiving position;

[0052] The first robotic arm transports the first upper cover from the first material handling position to the first assembly position;

[0053] The first transparent sheet conveying mechanism conveys the first transparent sheet to the first assembly position;

[0054] The first assembly mechanism assembles the first transparent sheet and the first upper cover together to form a first component;

[0055] The second robotic arm installs the first component onto the thermal relay located at the first assembly station.

[0056] The beneficial effects of this invention are as follows:

[0057] This invention provides an automatic cover-installation device for thermal relays, comprising a conveying device, a fork transfer module, an assembly conveyor line, and a first automatic cover-installation device. The conveying device transports the thermal relay to be assembled to a pre-assembly station. The fork transfer module transfers the thermal relay from the pre-assembly station to the assembly conveyor line. The assembly conveyor line transports a specific type of thermal relay to a first assembly station. The first automatic cover-installation device installs a first upper cover and a first transparent sheet onto the thermal relay located at the first assembly station, completing the automatic installation of the thermal relay cover. This automatic cover-installation device for thermal relays enables automatic installation of the thermal relay cover. Compared with the existing manual assembly method, it improves the assembly consistency of thermal relay products, increases assembly efficiency, and reduces labor costs. Attached Figure Description

[0058] Figure 1 This is a schematic diagram of the structure of the automatic thermal relay cover mounting device provided in an embodiment of the present invention;

[0059] Figure 2 for Figure 1 A magnified view of a portion at point A;

[0060] Figure 3 This is a partial schematic diagram of the conveying device provided in an embodiment of the present invention;

[0061] Figure 4 for Figure 1 A magnified view of the area at point B;

[0062] Figure 5 This is a schematic diagram of the structure of the first conveyor line and the first transfer robot provided in an embodiment of the present invention;

[0063] Figure 6 This is a schematic diagram of the structure of the second material distribution mechanism provided in an embodiment of the present invention;

[0064] Figure 7 This is a schematic diagram of the structure of the first lifting mechanism provided in an embodiment of the present invention;

[0065] Figure 8 for Figure 7 A magnified view of the area at point C;

[0066] Figure 9 This is a schematic diagram of the structure of the first automatic cover-attaching device provided in an embodiment of the present invention;

[0067] Figure 10 This is a schematic diagram of the structure of the first material distribution mechanism provided in an embodiment of the present invention;

[0068] Figure 11 This is a schematic diagram of the structure of the first upper cover handling robot provided in an embodiment of the present invention;

[0069] Figure 12 An assembly diagram of the first transparent sheet conveying mechanism and the first assembly mechanism from a first perspective, provided for an embodiment of the present invention;

[0070] Figure 13 An assembly diagram of the first transparent sheet conveying mechanism and the first assembly mechanism from a second perspective, provided in an embodiment of the present invention;

[0071] Figure 14 A cross-sectional view of the assembly diagram of the first transparent sheet conveying mechanism and the first assembly mechanism provided in an embodiment of the present invention;

[0072] Figure 15 This is a schematic diagram of the structure of the second automatic cover-attaching device provided in an embodiment of the present invention;

[0073] Figure 16 A schematic diagram of the structure of the second transparent sheet conveying mechanism provided in an embodiment of the present invention. Figure 1 ;

[0074] Figure 17 A schematic diagram of the structure of the second transparent sheet conveying mechanism provided in an embodiment of the present invention. Figure 2 (Second feed support not shown);

[0075] Figure 18 for Figure 1 A magnified view of the area at point D;

[0076] Figure 19 A schematic diagram of the assembly inspection module provided in this embodiment of the invention;

[0077] Figure 20 A schematic diagram of the withstand voltage testing module provided in this embodiment of the invention.

[0078] In the picture:

[0079] 100. Conveying device; 110. First conveyor line; 111. First feed position;

[0080] 120. First transfer robot; 121. Fourth drive component; 122. First movable plate; 123. Fifth drive component; 124. First connecting plate; 125. Sixth drive component; 126. Second connecting plate; 127. First gripper cylinder; 128. First gripper;

[0081] 131. First material distribution station; 132. Second material distribution mechanism; 1321. Third mounting plate; 1322. Seventh driving component; 1323. Push plate;

[0082] 140. First lifting mechanism; 141. First elevator; 1411. Servo motor; 1412. Reducer; 1413. Main support; 1414. First drive wheel; 1415. First driven wheel; 1416. Chain; 1417. Drive wheel mounting plate; 1418. Driven wheel mounting plate; 1419. First rotating shaft; 142. First carrier; 143. First discharge position; 144. First pushing mechanism; 145. First mounting plate; 1451. First guide rail; 1452. First buffer;

[0083] 150. Second conveyor line; 160. Second transfer robot;

[0084] 170. Second lifting mechanism; 171. Second elevator; 172. Second carrier; 173. Second discharge position; 174. Second pushing mechanism; 175. Second mounting plate;

[0085] 180. Converging conveyor line; 190. Third conveyor line; 191. Third transfer robot;

[0086] 200. Shift fork transfer module;

[0087] 300. Assembly conveyor line;

[0088] 400. First automatic cover-loading device; 410. First cover-loading feeding assembly; 4111. First vibratory feeder; 4112. First linear feeding device; 412. First material distribution mechanism; 4121. Slide table; 4122. Second guide rail; 4123. Material distribution carrier; 41231. First limiting block; 4124. Eighth driving component; 4125. First limiting groove;

[0089] 420. First upper cover handling robot; 421. First robot; 4211. Eleventh drive component; 4212. Third connecting plate; 4213. Second gripper cylinder; 4214. Second gripper; 4215. Coupling; 4216. Second rotating shaft; 4217. Bearing housing; 4218. Photoelectric switch; 4219. Light shield; 422. Second robot; 4221. Fourth movable plate; 4222. Third gripper cylinder Cylinder; 4223, Third gripper; 4224, Fifth guide rail; 4225, Second limiting block; 4226, Second elastic element; 4227, Third limiting block; 4228, Second limiting groove; 413, First fixed frame; 414, Third guide rail; 415, Second movable plate; 416, Ninth driving element; 417, Third movable plate; 418, Tenth driving element; 4191, Second buffer; 4192, Third buffer;

[0090] 430. First assembly position;

[0091] 440. First transparent sheet conveying mechanism; 441. First conveyor frame; 442. Twelfth driving component; 443. Second driving wheel; 444. Second driven wheel; 445. Conveyor belt; 446. Auxiliary wheel; 447. First feeding support; 448. Fourth sensor; 449. Fifth sensor;

[0092] 450. First assembly mechanism; 451. Second fixed frame; 452. Thirteenth driving component; 453. Fourth connecting plate; 454. Fifth movable plate; 4541. First section; 45411. Slide groove; 4542. Second section; 455. Slide groove seat; 4561. First pressure block; 4562. Second pressure block; 457. Cam follower; 458. First slide rail; 459. First slider;

[0093] 460. Transparent sheet screening machine; 470. Transparent sheet transfer module;

[0094] 500. Thermal relay; 510. First upper cover; 520. First transparent sheet; 530. Second upper cover; 540. Second transparent sheet;

[0095] 610, First rack; 620, Third rack; 630, Fourth rack;

[0096] 700. Second automatic cover-loading device; 710. Second cover-loading feeding assembly; 711. Second feeding mechanism; 712. Third dispensing mechanism; 720. Second cover-loading transport robot; 721. Third robot; 722. Fourth robot; 730. Second assembly position; 740. Second transparent sheet conveying mechanism; 741. Second conveyor frame; 742. Fourteenth drive component; 743. Sliding seat; 7431. Second positioning groove; 744. Second feeding support; 7441. First positioning groove; 745. Fourth buffer; 746. Sixth sensor; 747. Seventh sensor; 748. Second slide rail; 749. Second slider; 750. Second assembly mechanism;

[0097] 800. Assembly and testing module; 811. First testing link; 812. Second testing link; 813. First sensor; 814. Second sensor; 821. First driving component; 822. First push plate; 830. Limiting plate; 840. First elastic component;

[0098] 900, Pressure resistance testing module; 911, Second driving component; 912, Second push plate; 920, Detection probe; 931, Third driving component; 932, Push rod; 940, Third fixing frame; 950, Third slide rail; 960, Third slider; 970, Fifth buffer;

[0099] 1000, Defective Product Recycling Module. Detailed Implementation

[0100] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0101] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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 the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Furthermore, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0102] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0103] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0104] This invention provides an automatic cover mounting device for thermal relays, which can automatically assemble the cover and transparent sheet of thermal relay 500, improve the assembly consistency of thermal relay 500 products, reduce labor costs, and improve assembly efficiency.

[0105] Specifically, such as Figure 1As shown, the automatic cover-installing device for thermal relays includes a conveying device 100, a fork transfer module 200, an assembly conveyor line 300, and a first automatic cover-installing device 400. The conveying device 100 transports the thermal relays 500 to be assembled to a pre-assembly station. The fork transfer module 200 transfers the thermal relays 500 from the pre-assembly station to the assembly conveyor line 300. The assembly conveyor line 300 transports one type of thermal relay 500 to the first assembly station. The first automatic cover-installing device 400 installs a first upper cover 510 and a first transparent sheet 520 onto the thermal relay 500 located at the first assembly station, completing the automatic installation of the thermal relay 500 cover. Compared with the prior art of manual assembly, the assembly consistency of the upper cover is higher, ensuring assembly quality, eliminating manual labor, reducing labor costs, and significantly improving assembly efficiency compared to manual assembly.

[0106] Furthermore, such as Figures 1-4As shown, the conveying device 100 includes a first conveyor line 110, a first transfer robot 120, a second material distribution mechanism 132, a first lifting mechanism 140, a first pushing mechanism 144, a second conveyor line 150, a second transfer robot 160, a second lifting mechanism 170, a second pushing mechanism 174, and a merging conveyor line 180. The first conveyor line 110 can convey the thermal relay 500 to the first feed position 111. In this embodiment, the first conveyor line 110 is fixed on the first frame 610 and is a belt conveyor; the first feed position 111 is located at the tail end of the first conveyor line 110. In other embodiments, the first conveyor line 110 can also be other conveyors, selected according to actual needs. The first transfer robot 120 can transport the thermal relay 500 from the first feed position 111 to the first material distribution position 131. The first lifting mechanism 140 includes a first elevator 141 and a first carrier 142. A second dispensing mechanism 132 can push the thermal relay 500 at the first dispensing position 131 into the first carrier 142. The first elevator 141 can lift the first carrier 142 from the bottom to the top, so that the thermal relay 500 reaches the first discharge position 143. In this embodiment, a first transfer robot 120 is mounted on a first mounting plate 145, which is fixedly connected to the first elevator 141. The first lifting mechanism 140 is mounted on a first frame 610. A first pushing mechanism 144 can push the thermal relay 500 at the first discharge position 143 into the second conveyor line 150. The first pushing mechanism 144 can be, but is not limited to, a cylinder, which moves the thermal relay 500 through its extension and retraction. In this embodiment, the first pushing mechanism 144 and the second conveyor line 150 are fixed on the second frame (not shown in the figure), and the second conveyor line 150 is a belt conveyor. In other embodiments, the second conveyor line 150 can also be other conveyors, selected according to actual needs. The second lifting mechanism 170 includes a second elevator 171 and a second carrier 172. The second transfer robot 160 can transport the thermal relay 500 at the end of the second conveyor line 150 to the second carrier 172. The second elevator 171 can lower the second carrier 172 from the top to the bottom so that the thermal relay 500 reaches the second discharge position 173. In this embodiment, the second transfer robot 160 is mounted on the second mounting plate 175, which is fixedly connected to the second elevator 171. The second lifting mechanism 170 is mounted on the third frame 620. The second pushing mechanism 174 can push the thermal relay 500 at the second discharge position 173 into the merging conveyor line 180, which can transport the thermal relay 500 to the pre-assembly station. The second pushing mechanism 174 can be, but is not limited to, a cylinder, which pushes the thermal relay 500 to move through the extension and retraction of the cylinder.In this embodiment, the second pushing mechanism 174 is mounted on the third frame 620, and one end of the merging conveyor line 180 is mounted on the third frame 620 and the other end is mounted on the fourth frame 630.

[0107] Preferably, the conveying device 100 further includes a third conveyor line 190 and a third transfer robot 191. The third conveyor line 190 conveys the thermal relay 500 to the third discharge position. In this embodiment, the third conveyor line 190 is fixed to the third frame 620 and is a belt conveyor; the third discharge position is located at the tail end of the third conveyor line 190. In other embodiments, the third conveyor line 190 can be any other conveyor, selected according to actual needs. The third transfer robot 191 can transport the thermal relay 500 from the third discharge position to the merging conveyor line 180. In this embodiment, the third transfer robot 191 is mounted on the third frame 620.

[0108] It is worth noting that the thermal relay 500 can be transported to the pre-assembly station via either the first line (first conveyor line 110 - first lifting mechanism 140 - second conveyor line 150 - second lifting mechanism 170 - merging conveyor line 180) or the second line (third conveyor line 190 - merging conveyor line 180), depending on actual needs. In this embodiment, two models of thermal relays 500 require cover installation, namely NR2 and NXR. Therefore, both the first and second lines are activated simultaneously to transport the two models of thermal relays 500 respectively. Of course, if only one model of thermal relay 500 requires cover installation, only the first or second line needs to be activated to transport the thermal relay 500, without simultaneously activating both lines; the choice can be made according to actual needs. By setting up two conveyor lines, thermal relays 500 of different models produced by different production lines can be transported to the pre-assembly station for assembly, offering high flexibility and practicality.

[0109] Furthermore, such as Figure 5As shown, the first transfer robot 120 includes a fourth drive member 121, a first movable plate 122, a fifth drive member 123, a first connecting plate 124, a sixth drive member 125, a second connecting plate 126, a first gripper cylinder 127, and a first gripper 128. The fixed end of the fourth drive member 121 is mounted on the first mounting plate 145, and the first movable plate 122 is slidably connected to the first mounting plate 145. The output end of the fourth drive member 121 can drive the first movable plate 122 to move along the X-axis. The fourth drive member 121 can be, but is not limited to, a cylinder. Specifically, in this embodiment, the first mounting plate 145 is provided with a first guide rail 1451, which extends along the X-axis. The first movable plate 122 is slidably connected to the first guide rail 1451. By providing the first guide rail 1451, the sliding of the first movable plate 122 can be guided, making the sliding of the first movable plate 122 smoother. Multiple first guide rails 1451 can be provided. In this embodiment, two first guide rails 1451 are provided, and the two first guide rails 1451 are spaced apart along the Z-axis direction, which helps to improve the sliding stability of the first movable plate 122. The fixed end of the fifth driving member 123 is fixedly connected to the first movable plate 122, and the output end of the fifth driving member 123 is drivenly connected to the first connecting plate 124, for driving the first connecting plate 124 to move along the Z-axis direction. The fifth driving member 123 can be selected, but is not limited to, a cylinder. The fixed end of the sixth driving member 125 is fixedly connected to the first connecting plate 124, and the output end of the sixth driving member 125 is drivenly connected to the second connecting plate 126, for driving the second connecting plate 126 to rotate. The sixth driving member 125 can be selected, but is not limited to, a rotary cylinder. The first gripper cylinder 127 is fixedly connected to the second connecting plate 126, and the first gripper 128 is mounted on the first gripper cylinder 127. The first gripper cylinder 127 can drive the first gripper 128 to grasp or release the thermal relay 500.

[0110] Preferably, the first mounting plate 145 is further provided with a first buffer 1452. The first buffer 1452 is disposed at both ends of the first guide rail 1451. By providing the first buffer 1452 at both ends of the first guide rail 1451, the sliding stroke of the first movable plate 122 can be limited while avoiding hard contact with the first movable plate 122, thus preventing the first movable plate 122 from disengaging from the first guide rail 1451.

[0111] Optionally, in this embodiment, the structures of the second transfer robot 160 and the third transfer robot 191 are the same as those of the first transfer robot 120, which helps to reduce research and development costs. Of course, in other embodiments, the structures of the second transfer robot 160 and the third transfer robot 191 can also be other, depending on actual needs.

[0112] To facilitate understanding, the working process of the first transfer robot 120 described above will be briefly introduced as follows:

[0113] First, the output end of the fourth drive member 121 retracts, causing the fifth drive member 123 to move closer to the first feed position 111, thereby moving the first gripper 128 directly above the first feed position 111. Then, the output end of the fifth drive member 123 extends, bringing the first gripper 128 closer to the thermal relay 500 located at the first feed position 111. The sixth drive member 125 adjusts the direction of the first gripper 128, while the first gripper cylinder 127 drives the first gripper 128 to grasp the thermal relay 500 at the first feed position 111. Afterward, the output end of the fifth drive member 123 retracts, and the output end of the fourth drive member 121 extends, moving the first gripper 128 above the first distribution position 131. Finally, the output end of the fifth drive member 123 extends, and the first gripper 128 releases the thermal relay 500, thus transferring the thermal relay 500 from the first feed position 111 to the first distribution position 131. This process can be completed automatically through a pre-programmed sequence.

[0114] Furthermore, such as Figure 6 As shown, the second material distribution mechanism 132 includes a third mounting plate 1321, a seventh driving member 1322, and a pusher plate 1323. The third mounting plate 1321 is mounted on the first frame 610. The fixed end of the seventh driving member 1322 is fixedly connected to the third mounting plate 1321, and the output end of the seventh driving member 1322 is drivenly connected to the pusher plate 1323. One end of the pusher plate 1323 can abut against a thermal relay 500 located at the first material distribution position 131. During the movement of the pusher plate 1323 driven by the seventh driving member 1322, the pusher plate 1323 can push the abutting thermal relay 500 into the first carrier 142. The seventh driving member 1322 can be, but is not limited to, a cylinder.

[0115] Furthermore, such as Figure 7 and Figure 8As shown, the first lifting platform 141 includes a servo motor 1411, a reducer 1412, a main support 1413, a first drive wheel 1414, a first driven wheel 1415, and a chain 1416. The first drive wheel 1414 and the first driven wheel 1415 are respectively located at both ends of the main support 1413. The chain 1416 is located inside the main support 1413 and is wound between and meshed with the first drive wheel 1414 and the first driven wheel 1415. The servo motor 1411 is driven by the first drive wheel 1414 via the reducer 1412. Multiple first carriers 142 are provided, and these carriers 142 are spaced apart on the chain 1416. The servo motor 1411 drives the first drive wheel 1414 to rotate, and the first drive wheel 1414 drives the chain 1416 to rotate and lift. The first carrier 142 moves with the chain 1416, thereby achieving the purpose of lifting the thermal relay 500 inside the first carrier 142 from the bottom to the top.

[0116] Preferably, in order to improve the stability of the movement of the first vehicle 142, in this embodiment, the chain 1416 is provided with two chains, and the first driving wheel 1414 and the first driven wheel 1415 are both double gear structures.

[0117] Optionally, in this embodiment, the first elevator 141 further includes a drive wheel mounting plate 1417, a driven wheel mounting plate 1418, and a first rotating shaft 1419. The drive wheel mounting plate 1417 is fixedly connected to the main support 1413, the first rotating shaft 1419 is fixed to the drive wheel mounting plate 1417, and the first drive wheel 1414 is rotatably connected to the first rotating shaft 1419. The driven wheel mounting plate 1418 is fixedly connected to the main support 1413, the first rotating shaft 1419 is fixed to the driven wheel mounting plate 1418, and the first driven wheel 1415 is rotatably connected to the first rotating shaft 1419.

[0118] Furthermore, in this embodiment, the shift fork transfer module 200 has the same structure as the first transfer robot 120, which helps to reduce R&D costs. The shift fork transfer module 200 is mounted on the fourth frame 630.

[0119] Furthermore, such as Figure 9As shown, the first automatic cover-attaching device 400 includes a first cover-attaching feeding assembly 410, a first cover-attaching transporting robot 420, a first transparent sheet conveying mechanism 440, and a first assembly mechanism 450. The first cover-attaching feeding assembly 410 includes a first feeding mechanism and a first dispensing mechanism 412. The first feeding mechanism can transport the first cover 510 to the first dispensing mechanism 412, and the first dispensing mechanism 412 can transport the first cover 510 to a first picking position. The first cover-attaching robot 420 includes a first robot 421 and a second robot 422. The first robot 421 can transport the first cover 510 located at the first picking position to the first assembly position 430. The first transparent sheet conveying mechanism 440 can transport the first transparent sheet 520 to the first assembly position 430. The first assembly mechanism 450 can assemble the first transparent sheet 520 located at the first assembly position 430 with the first cover 510 to form a first assembly. The second robotic arm 422 can install the first component onto the thermal relay 500 located at the first assembly station. The aforementioned first automatic cover-mounting device 400 can automatically assemble the first upper cover 510 and the first transparent sheet 520 together and install them onto the thermal relay 500, achieving high assembly consistency and efficiency.

[0120] Optionally, see [link to relevant documentation] Figure 9 In this embodiment, the first feeding mechanism includes a first vibratory feeder 4111 and a first linear feeding device 4112. One end of the first linear feeding device 4112 is connected to the discharge port of the first vibratory feeder 4111, and the other end is connected to the first distributing mechanism 412. The first linear feeding device 4112 feeds materials through vibration. By setting the first vibratory feeder 4111, the first upper cover 510 can be automatically sorted and output, replacing manual sorting, which improves work efficiency. Since the first vibratory feeder 4111 is existing technology, its structure will not be described in detail.

[0121] Preferably, such as Figure 10As shown, the first material distribution mechanism 412 includes a slide table 4121, a second guide rail 4122, a material distribution carrier 4123, and an eighth driving member 4124. The slide table 4121 is mounted on the fourth frame 630, the second guide rail 4122 is mounted on the slide table 4121 and extends along the X-axis, the material distribution carrier 4123 is slidably connected to the second guide rail 4122, the fixed end of the eighth driving member 4124 is connected to the slide table 4121, and the output end of the eighth driving member 4124 is drivenly connected to the material distribution carrier 4123, driving the material distribution carrier 4123 to slide on the second guide rail 4122, allowing the first upper cover 510, which falls from the first feeding mechanism, to enter the material distribution carrier 4123. In this embodiment, the first upper cover 510, which falls from the first linear feeding device 4112, enters the material distribution carrier 4123. Then, the eighth drive unit 4124 drives the material distribution carrier 4123 to move, conveying the first upper cover 510 to the first material picking position. By setting the first material distribution mechanism 412, on the one hand, it facilitates the first robot arm 421 to grasp the first upper cover 510; on the other hand, it removes the first upper cover 510 that has entered the material distribution carrier 4123, so that there is a certain displacement difference between the next first upper cover 510 that is about to enter the material distribution carrier 4123 and the first upper cover 510 that is already in the material distribution carrier 4123, thus avoiding the first robot arm 421 from deflecting the next first upper cover 510 that is about to enter the material distribution carrier 4123 when grasping the first upper cover 510, which would cause material jamming. The eighth drive unit 4124 can be, but is not limited to, a cylinder.

[0122] Further preferably, see [link to previous section] Figure 10 The slide table 4121 is provided with a first limiting groove 4125, and the side wall of the material distribution carrier 4123 is provided with a first limiting block 41231. The first limiting block 41231 can be engaged with the groove wall of the first limiting groove 4125. By setting the first limiting block 41231 and the first limiting groove 4125, the movement stroke of the material distribution carrier 4123 can be limited. In order to make the limiting stroke of the first limiting groove 4125 adjustable, a limiting screw (not shown in the figure) can be installed on the groove wall of the first limiting groove 4125. The limiting screw can be engaged with the first limiting block 41231 to limit the movement stroke of the material distribution carrier 4123.

[0123] Furthermore, a third sensor (not shown in the figure) is also provided on the material distribution carrier 4123 to sense whether the first upper cover 510 is in place, which helps to improve the stability of the incoming material signal.

[0124] Furthermore, such as Figure 11As shown, the first upper cover handling robot 420 also includes a first fixed frame 413, a third guide rail 414, a second movable plate 415, a ninth drive member 416, a fourth guide rail, a third movable plate 417, and a tenth drive member 418. The first fixed frame 413 is mounted on the fourth frame 630, the third guide rail 414 is mounted on the first fixed frame 413 and extends along the Y-axis, and the second movable plate 415 is slidably connected to the third guide rail 414. The fixed end of the ninth drive member 416 is mounted on the first fixed frame 413, and the output end of the ninth drive member 416 is drivenly connected to the second movable plate 415 to drive the second movable plate 415 to slide on the third guide rail 414. The second movable plate 415 is provided with a fourth guide rail (not shown in the figure), which extends along the Z-axis. The third movable plate 417 is slidably connected to the fourth guide rail. The fixed end of the tenth driving member 418 is fixedly connected to the second movable plate 415, and the output end of the tenth driving member 418 is drivenly connected to the third movable plate 417 to drive the third movable plate 417 to slide on the fourth guide rail. The first robotic arm 421 and the second robotic arm 422 are both fixedly connected to the third movable plate 417. The first robotic arm 421 and the second robotic arm 422 move along the Y-axis and Z-axis directions by sliding the second movable plate 415 and the third movable plate 417. In this embodiment, the first fixed frame 413 is a gantry structure. In other embodiments, the structure of the first fixed frame 413 can also be other, depending on actual needs. The ninth driving member 416 is optional but not limited to a cylinder, and the tenth driving member 418 is optional but not limited to a cylinder.

[0125] Preferably, the first fixed frame 413 is further provided with a second buffer 4191, which is disposed at both ends of the third guide rail 414. By providing the second buffer 4191, the movement stroke of the second movable plate 415 can be limited, and there will be no hard contact with the second movable plate 415, which is beneficial to protecting the second movable plate 415.

[0126] Preferably, the second movable plate 415 is further provided with a third buffer 4192, which is disposed at both ends of the fourth guide rail. By providing the third buffer 4192, the movement stroke of the third movable plate 417 can be limited, and there will be no hard contact with the third movable plate 417, which is beneficial to protecting the third movable plate 417.

[0127] Further, see also Figure 11The first robotic arm 421 includes an eleventh driving member 4211, a third connecting plate 4212, a second gripper cylinder 4213, and a second gripper 4214. The fixed end of the eleventh driving member 4211 is fixedly connected to the third movable plate 417, and the output end of the eleventh driving member 4211 is drivenly connected to the third connecting plate 4212. The second gripper cylinder 4213 is connected to the third connecting plate 4212, and the second gripper 4214 is mounted on the second gripper cylinder 4213. The second gripper cylinder 4213 can drive the second gripper 4214 to grasp or release the first upper cover 510. The eleventh driving member 4211 is connected to the second gripper cylinder 4213 via the third connecting plate 4212 and is used to drive the second gripper cylinder 4213 to rotate, thereby achieving the rotation of the first upper cover 510. The eleventh driving member 4211 can be, but is not limited to, a rotary cylinder.

[0128] Preferably, see continue to see Figure 11 The first robotic arm 421 also includes a coupling 4215, a second rotating shaft 4216, a bearing housing 4217, a photoelectric switch 4218, and a light-shielding plate 4219. One end of the coupling 4215 is connected to the output end of the eleventh driving member 4211, and the other end is connected to one end of the second rotating shaft 4216. The bearing housing 4217 is fixedly connected to the third movable plate 417. The second rotating shaft 4216 passes through the bearing housing 4217, and the other end of the second rotating shaft 4216 is connected to the third connecting plate 4212. The light-shielding plate 4219 is fitted onto the coupling 4215 and has a notch. The photoelectric switch 4218 is mounted on the coupling 4215. The photoelectric switch 4218 identifies the rotation origin of the second rotating shaft 4216 by detecting the notch on the light-shielding plate 4219, preventing the eleventh driving member 4211 from losing steps. The steering accuracy of the first robotic arm 421 can be improved by the combined action of the eleventh drive unit 4211 and the photoelectric switch 4218. In this embodiment, the eleventh drive unit 4211 is a stepper motor.

[0129] Further, see also Figure 11The second robotic arm 422 includes a fourth movable plate 4221, a third gripper cylinder 4222, a third gripper 4223, a fifth guide rail 4224, a second limiting block 4225, and a second elastic element 4226. The fifth guide rail 4224 is mounted on the third movable plate 417 and extends along the Z-axis. The second limiting block 4225 is located at the top of the fifth guide rail 4224. The fourth movable plate 4221 is slidably connected to the fifth guide rail 4224. The second elastic element 4226 is located between the top of the fourth movable plate 4221 and the second limiting block 4225. The third gripper cylinder 4222 is fixedly connected to the fourth movable plate 4221. The third gripper 4223 is mounted on the third gripper cylinder 4222 and is used to grip or release the first upper cover 510. By setting the second elastic element 4226, the third gripper 4223 can be elastically gripped, avoiding the third gripper 4223 from making hard contact with the first upper cover 510 and damaging the first upper cover 510.

[0130] Preferably, see continue to see Figure 11 The second robotic arm 422 also includes a third limiting block 4227 and a second limiting groove 4228. The third limiting block 4227 is disposed on the fourth movable plate 4221, and the second limiting groove 4228 is fixed on the third movable plate 417. The third limiting block 4227 can move within the second limiting groove 4228 and engage with the groove wall of the second limiting groove 4228. By setting the third limiting block 4227 and the second limiting groove 4228, the movement stroke of the fourth movable plate 4221 can be limited.

[0131] Furthermore, such as Figure 12 As shown, the first transparent sheet conveying mechanism 440 includes a first conveyor frame 441, a twelfth drive member 442, a second driving wheel 443, a second driven wheel 444, and a conveyor belt 445. The first conveyor frame 441 is fixed to the first assembly mechanism 450. The fixed end of the twelfth drive member 442 is fixedly connected to the first conveyor frame 441, and the drive member of the twelfth drive member 442 is driven by the second driving wheel 443, driving the second driving wheel 443 to rotate. The second driving wheel 443 is located at one end of the first conveyor frame 441, and the second driven wheel 444 is located at the other end of the first conveyor frame 441. The conveyor belt 445 is wound between the second driving wheel 443 and the second driven wheel 444. By placing the first transparent sheet 520 on the conveyor belt 445 at the pre-position, and activating the twelfth drive member 442, the first transparent sheet 520 can be conveyed to the first assembly position 430. The twelfth drive member 442 can be, but is not limited to, a rotary cylinder.

[0132] Preferably, see continue to see Figure 12The first conveyor frame 441 is also equipped with a first feeding support 447 and a fourth sensor 448. The first feeding support 447 is connected to the conveyor belt 445 and is located on the side away from the first assembly position 430. The fourth sensor 448 is located at the first feeding support 447 and is used to sense the first transparent sheet 520. The preceding station first places the first transparent sheet 520 in the first feeding support 447, and then it falls from the first feeding support 447 onto the conveyor belt 445. By setting the first feeding support 447, it can be ensured that the preceding station places the first transparent sheet 520 onto the conveyor belt 445 at the required angle, avoiding the first transparent sheet 520 being skewed and affecting the assembly quality of the first transparent sheet 520 and the first upper cover 510. When the fourth sensor 448 senses that the first transparent sheet 520 is in place, the twelfth drive unit 442 is activated to transport the first transparent sheet 520.

[0133] Preferably, a fifth sensor 449 is also provided at the first assembly position 430 to detect whether the first transparent sheet 520 is in place, thereby improving the reliability of the assembly of the first transparent sheet 520 and the first upper cover 510.

[0134] Further, see also Figure 12 The first transparent sheet conveying mechanism 440 also includes an auxiliary wheel 446, which is mounted on the first conveyor frame 441, and the conveyor belt 445 is wound around the auxiliary wheel 446. By setting the auxiliary wheel 446, the conveyor belt 445 can be conveyed along the required route. Multiple auxiliary wheels 446 can be set according to actual needs.

[0135] Furthermore, such as Figures 12-14As shown, the first assembly mechanism 450 includes a second fixed frame 451, a thirteenth driving member 452, a fourth connecting plate 453, a fifth movable plate 454, a slide seat 455, a first pressing block 4561, a second pressing block 4562, and a cam follower 457. The second fixed frame 451 is mounted on the fourth frame 630. The fixed end of the thirteenth driving member 452 is fixedly connected to the second fixed frame 451, and the fourth connecting plate 453 is positioned above the second fixed frame 451. The fifth movable plate 454 includes a first portion 4541 and a second portion 4542. The first portion 4541 is slidably connected to the fourth connecting plate 453, and the output end of the thirteenth driving member 452 is drivenly connected to the first portion 4541, enabling the thirteenth driving member 452 to drive the first portion 4541 to slide along the fourth connecting plate 453. The slide seat 455 is positioned above the fourth connecting plate 453, and the first pressing block 4561 and the second pressing block 4562 can clamp and fix the first upper cover 510. One side of the first pressing block 4561 and the second pressing block 4562 are slidably connected to the slide seat 455, and the other side of the first pressing block 4561 and the second pressing block 4562 are provided with a cam follower 457. The first section 4541 is provided with a slide groove 45411, and the cam follower 457 can slide in the slide groove 45411. When the output end of the thirteenth driving member 452 extends, it drives the first segment 4541 to slide upward relative to the fourth connecting plate 453. Simultaneously, the cam follower 457 slides within the slide groove 45411, causing the first pressing block 4561 and the second pressing block 4562 to move closer together, pressing the first upper cover 510 on the first assembly position 430 to prevent movement. As the output end of the thirteenth driving member 452 continues to extend, the second segment 4542 lifts the first transparent sheet 520 located at the first assembly position 430, installing it within the first upper cover 510 to form the first assembly. Specifically, in this embodiment, the fourth connecting plate 453 is provided with a first slide rail 458, and the first segment 4541 is provided with a first slider 459. The first slider 459 is slidably connected to the first slide rail 458, improving the smoothness of the movement of the first segment 4541. Optionally, in this embodiment, the first conveyor frame 441 is mounted on the second fixed frame 451. The thirteenth drive unit 452 is optional but not limited to a cylinder.

[0136] Further, see also Figure 1 The first automatic cover-loading device 400 also includes a transparent sheet feeding device, which includes a transparent sheet screening machine 460 and a transparent sheet transfer module 470, both of which are mounted on the fourth frame 630. The transparent sheet screening machine 460 is used to screen the first transparent sheet 520, and the transparent sheet transfer module 470 can transport the first transparent sheet 520 from the outlet of the transparent sheet screening machine 460 to the first transparent sheet conveying mechanism 440.

[0137] To facilitate understanding, the working process of the first automatic cover-attaching device 400 described above will be briefly introduced below:

[0138] The first transparent sheet 520 is placed on the conveyor belt 445 through a pre-process, and is then transported by the conveyor belt 445 to the first assembly position 430. The first upper cover 510 is transported to the first picking position by the first upper cover feeding assembly 410. The first robot arm 421 rotates the first upper cover 510 at the first picking position by a certain angle and places it on the first assembly position 430. Then, the first assembly mechanism 450 assembles the first transparent sheet 520 onto the first upper cover 510. Finally, the second robot arm 422 assembles the assembled first upper cover 510 onto the thermal relay 500 at the first assembly position.

[0139] Further, see also Figure 1 The aforementioned automatic thermal relay cover mounting device also includes a second automatic cover mounting device 700. The assembly conveyor line 300 can transport another type of thermal relay 500 to the second assembly station. The second automatic cover mounting device 700 can install the second upper cover 530 and the second transparent sheet 540 onto the thermal relay 500 located at the second assembly station. By setting up the second automatic cover mounting device 700, the aforementioned automatic thermal relay cover mounting device can simultaneously complete the assembly of two different types of thermal relays 500, exhibiting high versatility and work efficiency.

[0140] Furthermore, such as Figure 15 As shown, the second automatic cover-attaching device 700 includes a second cover-feeding assembly 710, a second cover-transferring robot 720, a second transparent sheet conveying mechanism 740, and a second assembly mechanism 750. The second cover-feeding assembly includes a second feeding mechanism 711 and a third dispensing mechanism 712. The second feeding mechanism 711 conveys the second cover 530 to the third dispensing mechanism 712, which in turn conveys the second cover 530 to a second picking position. The second cover-transferring robot 720 includes a third robot 721 and a fourth robot 722. The third robot 721 conveys the second cover 530 from the second picking position to the second assembly position 730. The second transparent sheet conveying mechanism conveys the second transparent sheet 540 to the second assembly position 730. The second assembly mechanism 750 assembles the second transparent sheet 540 and the second cover 530 together at the second assembly position 730 to form a second assembly. The fourth robotic arm 722 is capable of installing the second component onto the thermal relay 500 located at the second assembly station. The aforementioned second automatic cover-mounting device 700 is capable of automatically assembling the second upper cover 530 and the second transparent sheet 540 together and installing them onto the thermal relay 500, achieving high assembly consistency and efficiency.

[0141] Optionally, in this embodiment, the transparent sheet screening machine 460 can screen the first transparent sheet 520 and the second transparent sheet 540, and the transparent sheet transfer module 470 can transfer the first transparent sheet 520 to the first transparent sheet conveying mechanism 440 and transport the second transparent sheet 540 to the second transparent sheet conveying mechanism 740.

[0142] Optionally, in this embodiment, the second upper cover feeding assembly 710 has the same structure as the first upper cover feeding assembly 410, the second upper cover handling robot 720 has the same structure as the first upper cover handling robot 420, and the second assembly mechanism 750 has the same structure as the first assembly mechanism 450. Therefore, the identical structure of the second automatic cover-loading device 700 and the first automatic cover-loading device 400 will not be described again.

[0143] Furthermore, such as Figure 16 and Figure 17 As shown, the second transparent sheet conveying mechanism 740 includes a second conveying frame 741, a fourteenth driving member 742, a sliding seat 743, and a second feeding support 744. The fixed end of the fourteenth driving member 742 is fixedly connected to the second conveying frame 741, the sliding seat 743 is slidably connected to the second conveying frame 741, and the output end of the fourteenth driving member 742 is drivenly connected to the sliding seat 743 to drive the sliding seat 743 to slide. The second feeding support 744 is disposed on the second conveying frame 741. After the second transparent sheet 540 is placed on the second feeding support 744 in the previous process, the second transparent sheet 540 falls onto the sliding seat 743. When the output end of the fourteenth driving member 742 extends, it can convey the second transparent sheet 540 on the sliding seat 743 to the second assembly position 730. The fourteenth driving member 742 can be, but is not limited to, a cylinder.

[0144] Preferably, the second feeding support 744 is provided with a first positioning groove 7441, and the sliding seat 743 is provided with a second positioning groove 7431. The first positioning groove 7441 and the second positioning groove 7431 are both matched with the shape of the second transparent sheet 540. The first process places the second transparent sheet 540 in the first positioning groove 7441, and then the second transparent sheet 540 in the first positioning groove 7441 can fall into the second positioning groove 7431, which improves the stability of the second transparent sheet 540 conveying.

[0145] Furthermore, in this embodiment, the second conveyor frame 741 is provided with a second slide rail 748, and the sliding seat 743 is provided with a second slider 749, with the second slide rail 748 and the second slider 749 slidably connected. By setting the second slide rail 748 and the second slider 749, the sliding of the sliding seat 743 can be guided, and the smoothness of the sliding of the sliding seat 743 can be improved.

[0146] Preferably, the second conveyor frame 741 is further provided with a fourth buffer 745, and the sliding seat 743 can abut against the fourth buffer 745. By providing the fourth buffer 745, the sliding stroke of the sliding seat 743 can be limited without damaging the sliding seat 743.

[0147] Preferably, the second transparent sheet conveying mechanism 740 further includes a sixth sensor 746 and a seventh sensor 747. The sixth sensor 746 is disposed at the second feeding support 744, and the seventh sensor 747 is disposed at the second assembly position 730. The sixth sensor 746 senses whether the second transparent sheet 540 is in position, so that the fourteenth driving member 742 drives the sliding seat 743 to slide, thus feeding the second transparent sheet 540. The seventh sensor 747 senses whether the second transparent sheet 540 has reached the second assembly position 730, so as to assemble the second upper cover 530 and the second transparent sheet 540.

[0148] Furthermore, such as Figure 1 , Figure 18 and Figure 19As shown, the above-mentioned automatic thermal relay cover mounting device also includes an assembly detection module 800. The assembly conveyor line 300 can transport the assembled thermal relay 500 to the first inspection position, and the assembly detection module 800 can detect whether the thermal relay 500 at the first inspection position is qualified. Specifically, in this embodiment, the assembly detection module 800 includes an assembly detection component and a first driving component. The first driving component can drive the assembly detection component to detect the assembly status of the thermal relay 500 to eliminate defective products. The assembly detection component includes a first detection link 811, a second detection link 812, a first sensor 813, and a second sensor 814. One end of the first detection link 811 can contact the first upper cover 510, and the other end can trigger the first sensor 813. One end of the second detection link 812 can contact the first transparent sheet 520, and the other end can trigger the second sensor 814. The first driving component includes a first driving member 821 and a first push plate 822. The first driving member 821 is driven to connect with the first push plate 822. The first driving member 821 can drive the first push plate 822 to move in the vertical direction. The first detection link 811 and the second detection link 812 are both slidably connected to the first push plate 822. The first sensor 813 and the second sensor 814 are both fixed on the first push plate 822. When the first driving member 821 drives the first push plate 822 to move downwards in the vertical direction, the first detection link 811 and the second detection link 812 can contact the first upper cover 510 and the first transparent sheet 520 respectively. As the first driving member 821 continues to drive the first push plate 822, the first detection link 811 and the second detection link 812 no longer move with the first push plate 822, but slide relative to the first push plate 822. When the first driving member 821 has traveled a preset stroke, if the first detection link 811 triggers the first sensor 813, it indicates that the first upper cover 510 is assembled in place; if the second detection link 812 triggers the second sensor 814, it indicates that the first transparent sheet 520 is assembled in place; otherwise, it indicates that the assembly is not in place. The first driving member 821 can be, but is not limited to, a cylinder.

[0149] Preferably, see continue to see Figure 19The first push plate 822 is also provided with a limiting plate 830, and a first elastic element 840 is provided between the first detection link 811 and the limiting plate 830, and between the second detection link 812 and the limiting plate 830. By setting the limiting plate 830, the sliding stroke of the first detection link 811 and the second detection link 812 can be limited, ensuring that the first detection link 811 and the second detection link 812 can normally trigger the first sensor 813 and the second sensor 814, without damaging the first sensor 813 and the second sensor 814 due to excessive movement. By setting the first elastic element 840, hard contact between the limiting plate 830 and the first detection link 811 and the second detection link 812 can be avoided, which protects the first detection link 811 and the second detection link 812 and improves the movement stability of the first detection link 811 and the second detection link 812.

[0150] Furthermore, in this embodiment, the lowermost part of the first detection link 811 can abut against the first upper cover 510, the lowermost part of the second detection link 812 can abut against the first transparent sheet 520, the uppermost part of the first detection link 811 can trigger the first sensor 813, and the uppermost part of the second detection link 812 can trigger the second sensor 814. The first driving member 821 is disposed on the fourth frame 630.

[0151] Furthermore, such as Figure 1 , Figure 18 and Figure 20As shown, the aforementioned automatic thermal relay cover mounting device also includes a withstand voltage detection module 900. The assembly conveyor line 300 can transport the assembled thermal relay 500 to the second inspection position. The withstand voltage detection module 900 can detect the withstand voltage performance of the thermal relay 500 at the second inspection position to eliminate defective products. Specifically, in this embodiment, the withstand voltage detection module 900 includes a second driving member 911 and a detection probe 920. The second driving member 911 can drive the detection probe 920 to electrically connect with the electrodes of the thermal relay 500 to detect the withstand voltage performance of the thermal relay 500. The second driving assembly includes a second driving member 911 and a second pusher plate 912. The second driving member 911 and the second pusher plate 912 are drivenly connected, and the second driving member 911 can drive the second pusher plate 912 to move vertically. One end of the detection probe 920 is insulated from the second pusher plate 912, and the other end can be electrically connected to the electrodes of the thermal relay 500. When the second driving member 911 drives the second push plate 912 to move, the detection probe 920 moves together with the second push plate 912 until it is electrically connected to the electrode of the thermal relay 500 at the second test position. Then, the detection probe 920 releases high and low voltage to the electrode to detect whether the thermal relay 500 is leaking current. Optionally, multiple detection probes 920 are provided, and the number and position of the detection probes 920 are matched according to the number and position of the electrodes that need to be detected on the thermal relay 500. The second driving member 911 is optional, but not limited to, a cylinder.

[0152] Preferably, see continue to see Figure 20 The aforementioned withstand voltage testing module 900 also includes a tripping assembly, which can adjust the thermal relay 500 to the tripped state, facilitating the testing probe 920 to test the withstand voltage performance of the thermal relay 500. The tripping assembly includes a third driving member 931 and a push rod 932. The fixed end of the third driving member 931 is fixed to the second push plate 912, and the output end of the third driving member 931 is driven by the push rod 932. The output end of the third driving member 931 can drive the push rod 932 to move vertically and press the tripping button of the thermal relay 500, thereby tripping the thermal relay 500. Specifically, in this embodiment, the third driving member 931 is disposed above the second push plate 912, and the push rod 932 slides through the second push plate 912, which is L-shaped. The third driving member 931 can be, but is not limited to, a cylinder.

[0153] Further, see also Figure 20The aforementioned pressure resistance testing module 900 also includes a third fixed frame 940, which is mounted on the fourth frame 630. The fixed end of the second drive component 911 is fixedly connected to the third fixed frame 940. A third slide rail 950 is provided on the third fixed frame 940, and a third slider 960 is provided on the second push plate 912. The third slider 960 is slidably connected to the third slide rail 950. By providing the third slide rail 950 and the third slider 960, the stability and smoothness of the movement of the second push plate 912 can be improved.

[0154] Preferably, the third fixed frame 940 is further provided with a fifth buffer 970, which is located at the end of the third slide rail 950 away from the second driving member 911, and the second push plate 912 can abut against the fifth buffer 970. By providing the fifth buffer 970, the movement stroke of the second push plate 912 can be limited, preventing the third slider 960 from disengaging from the third slide rail 950, and the contact between the fifth buffer 970 and the second push plate 912 is a flexible contact, which can protect the second push plate 912.

[0155] Furthermore, the assembly conveyor line 300 may be, but is not limited to, a belt conveyor. In this embodiment, the assembly conveyor line 300 is provided with multiple clamps for fixing the thermal relay 500 at the first assembly station, the second assembly station, the first inspection station, and the second inspection station, facilitating assembly and testing.

[0156] Further, see also Figure 1 The aforementioned automatic thermal relay cover mounting device also includes a defective product recycling module 1000 for recycling defective products. The defective product recycling module 1000 includes a recycling conveyor line and a defective product transfer robot. The recycling conveyor line is mounted on the fourth frame 630 and is used to transport the defective thermal relays 500 detected by the assembly inspection module 800 and the withstand voltage inspection module 900. The defective product transfer robot is mounted on the fourth frame 630 and is used to transport the defective thermal relays 500 from the assembly conveyor line 300 to the recycling conveyor line. In this embodiment, the recycling conveyor line can be, but is not limited to, a belt conveyor. The structure of the defective product transfer robot is the same as that of the first transfer robot 120, which helps to reduce development costs.

[0157] According to another aspect of the present invention, the present invention also provides a method for automatically installing a cover on a thermal relay, the method being implemented based on the above-described automatic cover installation device for a thermal relay, comprising the following steps:

[0158] S100, conveyor 100 transports the thermal relay 500 to be assembled to the pre-assembly station;

[0159] S200, the shift fork transfer module 200 transfers the thermal relay 500 located at the pre-assembly station to the assembly conveyor line 300;

[0160] S300 and assembly conveyor line 300 transport thermal relay 500 to the first assembly station;

[0161] S400, the first feeding mechanism conveys the first upper cover 510 to the first distributing mechanism 412;

[0162] S500, the first material distribution mechanism 412 conveys the first upper cover 510 to the first material picking position;

[0163] S600, the first robotic arm 421 transports the first upper cover 510 of the first material picking position to the first assembly position 430;

[0164] S700, the first transparent sheet conveying mechanism 440 conveys the first transparent sheet 520 to the first assembly position 430;

[0165] S800, the first assembly mechanism 450 assembles the first transparent sheet 520 and the first upper cover 510 together to form the first component;

[0166] S900, the second robotic arm 422 installs the first component onto the thermal relay 500 located at the first assembly station.

[0167] Preferably, the above-mentioned method for automatically installing the cover on the thermal relay 500 further includes the following steps:

[0168] S1000 and assembly conveyor 300 transport the assembled thermal relay 500 to the first inspection position, and assembly inspection module 800 performs assembly inspection on the thermal relay 500 located at the first inspection position.

[0169] Preferably, the above-mentioned method for automatically installing the cover on the thermal relay further includes the following steps:

[0170] S1100 and assembly conveyor 300 transport the assembled thermal relay 500 to the second inspection position, and the withstand voltage test module 900 performs withstand voltage test on the thermal relay 500 located in the second inspection position.

[0171] Preferably, the above-mentioned method for automatically installing the cover on the thermal relay further includes the following steps:

[0172] S1200: The defective product transfer robot transports the defective thermal relays 500 detected in steps S1000 and S1100 to the recycling conveyor line, which then transports the defective thermal relays 500 to the recycling area for recycling.

[0173] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. An automatic cover-mounting device for thermal relays, characterized in that, The assembly includes a conveying device (100), a shift fork transfer module (200), an assembly conveyor line (300), and a first automatic cover mounting device (400). The conveying device (100) can transport thermal relays (500) to be assembled to a pre-assembly station. The shift fork transfer module (200) can transfer the thermal relays (500) at the pre-assembly station to the assembly conveyor line (300). The assembly conveyor line (300) can transport one type of thermal relay (500) to a first assembly station. The first automatic cover mounting device (400) can mount a first upper cover (510) and a first transparent sheet (520) on the thermal relay (500) located at the first assembly station. The first automatic cover mounting device (400) includes: The first upper cover feeding assembly (410) includes a first feeding mechanism and a first distributing mechanism (412). The first feeding mechanism can convey the first upper cover (510) to the first distributing mechanism (412), and the first distributing mechanism (412) can convey the first upper cover (510) to the first picking position. The first upper cover handling robot (420) includes a first robot (421) and a second robot (422). The first robot (421) is capable of handling the first upper cover (510) located at the first picking position to the first assembly position (430). The first transparent sheet conveying mechanism (440) is capable of conveying the first transparent sheet (520) to the first assembly position (430); The first assembly mechanism (450) is capable of assembling the first transparent sheet (520) located at the first assembly position (430) together with the first upper cover (510) to form a first component; The second robotic arm (422) is capable of installing the first component onto the thermal relay (500) located at the first assembly station; The conveying device (100) includes: The first conveyor line (110) is capable of conveying the thermal relay (500) to the first feed position (111); The first transfer robot (120) is capable of moving the thermal relay (500) at the first feeding position (111) to the first dispensing position (131); Second material distribution mechanism (132); The first lifting mechanism (140) includes a first lifting machine (141) and a first carrier (142). The second dispensing mechanism (132) can push the thermal relay (500) at the first dispensing position (131) into the first carrier (142). The first lifting machine (141) can lift the first carrier (142) from the bottom to the top so that the thermal relay (500) reaches the first discharge position (143). First pusher mechanism (144); The second conveyor line (150) is provided, wherein the first pushing mechanism (144) is capable of pushing the thermal relay (500) at the first discharge position (143) into the second conveyor line (150); Second transfer robot (160); The second lifting mechanism (170) includes a second lifting platform (171) and a second carrier (172). The second transfer manipulator (160) is capable of transporting the thermal relay (500) at the end of the second conveyor line (150) to the second carrier (172). The second lifting platform (171) is capable of lowering the second carrier (172) from the top to the bottom so that the thermal relay (500) reaches the second discharge position (173). Second pusher mechanism (174); The merging conveyor line (180) has a second pushing mechanism (174) that can push the thermal relay (500) at the second discharge position (173) into the merging conveyor line (180), and the merging conveyor line (180) can transport the thermal relay (500) to the pre-assembly station.

2. The automatic cover-mounting device for thermal relays according to claim 1, characterized in that, The first automatic cover-attaching device (400) further includes: The transparent sheet feeding device includes a transparent sheet screening machine (460) and a transparent sheet transfer module. The transparent sheet transfer module can transport the first transparent sheet (520) at the outlet of the transparent sheet screening machine (460) to the first transparent sheet conveying mechanism (440).

3. The automatic cover-mounting device for thermal relays according to claim 1, characterized in that, The conveying device (100) further includes: The third conveyor line (190) is capable of conveying the thermal relay (500) to the third discharge position; The third transfer robot (191) is capable of transporting the thermal relay (500) at the third discharge position to the merging conveyor line (180).

4. The automatic cover-mounting device for thermal relays according to claim 1, characterized in that, It also includes an assembly inspection module (800), wherein the assembly conveyor line (300) can transport the assembled thermal relay (500) to the first inspection position, and the assembly inspection module (800) can detect whether the thermal relay (500) at the first inspection position is qualified. The assembly inspection module (800) includes: The assembly includes a detection component, comprising a first detection link (811), a second detection link (812), a first sensor (813), and a second sensor (814). One end of the first detection link (811) can contact the first upper cover (510), and the other end can trigger the first sensor (813). One end of the second detection link (812) can contact the first transparent sheet (520), and the other end can trigger the second sensor (814). The first driving assembly includes a first driving member (821) and a first push plate (822). The first driving member (821) is drivingly connected to the first push plate (822). The first driving member (821) can drive the first push plate (822) to move in the vertical direction. The first detection link (811) and the second detection link (812) are both slidably connected to the first push plate (822). The first sensor (813) and the second sensor (814) are both fixed on the first push plate (822). When the first driving member (821) drives the first push plate (822) to move downward in the vertical direction, the first detection link (811) and the second detection link (812) can contact the first upper cover (510) and the first transparent sheet (520) respectively, and slide relative to the first push plate (822) to trigger the first sensor (813) and the second sensor (814) respectively.

5. The automatic cover-mounting device for thermal relays according to claim 1, characterized in that, It also includes a withstand voltage testing module (900). The assembly conveyor line (300) can transport the assembled thermal relay (500) to the second inspection position. The withstand voltage testing module (900) can detect the withstand voltage performance of the thermal relay (500) at the second inspection position. The withstand voltage testing module (900) includes: The second driving assembly includes a second driving member (911) and a second push plate (912). The second driving member (911) is drivingly connected to the second push plate (912), and the second driving member (911) can drive the second push plate (912) to move in the vertical direction. The detection probe (920) has one end insulated from the second push plate (912) and the other end electrically connected to the electrode of the thermal relay (500). The detection probe (920) can release high and low voltage to the electrode to detect whether the thermal relay (500) is leaking current.

6. The automatic cover-mounting device for thermal relays according to claim 5, characterized in that, The withstand voltage testing module (900) also includes: The tripping assembly includes a third drive member (931) and a push rod (932). The fixed end of the third drive member (931) is fixed on the second push plate (912). The output end of the third drive member (931) is driven to connect with the push rod (932). The output end of the third drive member (931) can drive the push rod (932) to move vertically to press the tripping button of the thermal relay (500) so that the thermal relay (500) trips.

7. The automatic cover-mounting device for thermal relays according to claim 4 or 5, characterized in that, It also includes a defective product recycling module (1000) for recycling defective products, the defective product recycling module (1000) comprising: A recycling conveyor line is used to transport the defective thermal relays (500); The defective product transfer robot is capable of transporting the defective thermal relays (500) from the assembly conveyor line (300) to the recycling conveyor line.

8. The automatic cover-mounting device for thermal relays according to any one of claims 1-6, characterized in that, It also includes a second automatic cover mounting device (700), wherein the assembly conveyor line (300) is capable of conveying another type of the thermal relay (500) to a second assembly station, and the second automatic cover mounting device (700) is capable of mounting a second upper cover (530) and a second transparent sheet (540) onto the thermal relay (500) located at the second assembly station. The second automatic cover mounting device (700) includes: The second upper cover feeding assembly (710) includes a second feeding mechanism (711) and a third distributing mechanism (712). The second feeding mechanism (711) can convey the second upper cover (530) to the third distributing mechanism (712), and the third distributing mechanism (712) can convey the second upper cover (530) to the second picking position. The second upper cover handling robot (720) includes a third robot (721) and a fourth robot (722), wherein the third robot (721) is capable of handling the second upper cover (530) at the second picking position to the second assembly position (730); A second transparent sheet conveying mechanism (740) is used to convey the second transparent sheet (540) to the second assembly position (730); A second assembly mechanism (750) is used to assemble the second transparent sheet (540) and the second upper cover (530) together to form a second component; The fourth robotic arm (722) is capable of installing the second component on the second assembly position (730) onto another type of thermal relay (500).

9. A method for automatically installing a cover on a thermal relay, characterized in that, The method for automatically installing a cover on a thermal relay is implemented based on the automatic cover installation device for a thermal relay according to any one of claims 1-8, and includes the following steps: The conveyor (100) transports the thermal relay (500) to be assembled to the pre-assembly station; The shift fork transfer module (200) transfers the thermal relay (500) located at the pre-assembly station to the assembly conveyor line (300); The assembly conveyor line (300) transports the thermal relay (500) to the first assembly station; The first feeding mechanism conveys the first upper cover (510) to the first distributing mechanism (412); The first material distribution mechanism (412) transports the first upper cover (510) to the first material picking position; The first robotic arm (421) transports the first upper cover (510) from the first material handling position to the first assembly position (430); The first transparent sheet conveying mechanism (440) conveys the first transparent sheet (520) to the first assembly position (430); The first assembly mechanism (450) assembles the first transparent sheet (520) and the first upper cover (510) together to form a first component; The second robotic arm (422) installs the first component onto the thermal relay (500) located at the first assembly station.

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