A feeding and assembly device for U-shaped iron core of onboard current sensor

Abstract

The application discloses a kind of on-board current sensor U-shaped core loading and assembling device, including rack, first-level cache unit, second-level cache unit, U-shaped core transfer mechanism, carrying mechanism, positioning mechanism, pressing mechanism, core push rod mechanism, loading and assembling, first U-shaped core is stored to first-level cache unit, then the U-shaped core of first-level cache unit is adjusted cache, U-shaped core transfer mechanism pushes out U-shaped core, carrying mechanism is grabbed and carried to the positioning mechanism of the product shell placed, pressing mechanism exerts vertical direction pressure to product shell and U-shaped core and makes it fixed;Core push rod mechanism pushes U-shaped core into the predetermined position of the product shell horizontally, so that the automation of U-shaped core loading and its product shell assembling is realized, avoid artificial operation to the damage of U-shaped core and inaccurate assembling, to effectively improve the assembling efficiency and quality.

Description

Technical Field

[0001] This invention relates to the field of current sensor manufacturing equipment technology, and in particular to a device for feeding and assembling a U-shaped iron core for an onboard current sensor. Background Technology

[0002] Onboard current sensors are small, high-precision sensors widely used in power electronic systems to accurately measure current. An onboard current sensor includes a housing containing a U-shaped iron core. During the production of onboard current sensors, especially during assembly, a significant portion of the work is done manually. Since the U-shaped iron core is a crucial component affecting the current sensor's output, its assembly is a critical step. However, current current sensor assembly processes still involve high manual labor intensity and require significant skill. The U-shaped iron core is difficult to adjust manually, resulting in substantial time consumption and low efficiency. Furthermore, the accuracy of manual assembly is lower than that of mechanical systems. Additionally, during manual assembly, operators must overcome the resistance between components, leading to hand fatigue over extended periods. To address these issues, an onboard current sensor U-shaped iron core loading and assembly device is provided. Summary of the Invention

[0003] The purpose of this invention is to provide a device for feeding and assembling a U-shaped iron core for an onboard current sensor. This device automates the feeding of the U-shaped iron core and its assembly with the product housing, avoiding damage to the U-shaped iron core caused by manual operation and the difficulty in controlling the pushing force, which can lead to inaccurate assembly. This effectively improves assembly efficiency and quality.

[0004] The above-mentioned technical objective of this invention is achieved through the following technical solution: This invention provides a device for feeding and assembling a U-shaped iron core for an onboard current sensor, comprising:

[0005] frame;

[0006] The feeding module, which is mounted on the frame, is used for buffering, aligning, and directional conveying of the U-shaped iron cores;

[0007] The feeding module includes:

[0008] A primary cache unit, used for batch storage of U-shaped iron cores;

[0009] A secondary cache unit, which interfaces with a primary cache unit, is used to receive and adjust the U-shaped iron core from the primary cache unit;

[0010] U-shaped iron core transfer mechanism, the U-shaped iron core transfer mechanism is used to remove the U-shaped iron core from the secondary cache unit;

[0011] A transport mechanism is used to transport the U-shaped iron core removed by the U-shaped iron core transfer mechanism to the assembly station;

[0012] An assembly module, which is mounted on a frame and located at an assembly station, is used to press the U-shaped iron core delivered by the U-shaped iron core transfer mechanism into the product housing.

[0013] The assembly module includes:

[0014] A positioning mechanism is used to place the product housing and the U-shaped iron core;

[0015] A pressing mechanism is disposed above the positioning mechanism and is used to apply vertical pressure to the product housing and the U-shaped iron core to fix them in place.

[0016] A core pusher mechanism is provided on one side of the positioning mechanism, which can horizontally push the U-shaped core into a predetermined position in the product housing.

[0017] Furthermore, the secondary buffer unit includes a roller-type storage bin mounted on the frame and a U-shaped iron core pushing assembly mounted above the output end of the primary buffer unit. The U-shaped iron core pushing assembly can push the U-shaped iron core of the primary buffer unit into the roller-type storage bin. The roller-type storage bin is equipped with an alignment mechanism for separating and discharging the U-shaped iron cores one by one.

[0018] Furthermore, the alignment mechanism includes an alignment motor, the output end of which is connected to a turntable, and a roller is fitted onto the turntable. The roller has at least two rows of U-shaped iron core storage slots, and the output end of the U-shaped iron core storage slots is correspondingly provided with a U-shaped iron core waiting slot.

[0019] The U-shaped iron core pushing assembly includes a linear cylinder. The output end of the linear cylinder is connected to a U-shaped iron core pushing frame via a pushing slide rail and a pushing slider. The U-shaped iron core pushing frame is equipped with a U-shaped iron core pushing cylinder, and the output end of the U-shaped iron core pushing cylinder is connected to a U-shaped iron core pushing head.

[0020] Furthermore, the conveying mechanism includes an adsorption component, a stress-relieving component, and a conveying component. The conveying component is mounted on a frame, and the adsorption component is mounted on the conveying component for adsorbing the U-shaped iron core. The stress-relieving component is connected between the adsorption component and the conveying mechanism to provide a buffer when the adsorption component adsorbs the U-shaped iron core.

[0021] Furthermore, the conveying assembly includes a conveying motor, the output end of which is connected to a laterally movable conveying lifting cylinder via a conveying screw; the adsorption assembly is a U-shaped iron core suction nozzle located at the output end of the conveying lifting cylinder; and the unloading assembly is an unloading spring located between the conveying lifting cylinder and the U-shaped iron core suction nozzle.

[0022] Furthermore, the U-shaped iron core transfer mechanism includes an ejection motor and an ejection screw connected to the frame. The frame is connected to a U-shaped iron core ejection frame that is connected to the ejection screw via a connecting block. The U-shaped iron core ejection frame is equipped with a U-shaped iron core ejection telescopic cylinder. The output end of the U-shaped iron core ejection telescopic cylinder is connected to a U-shaped iron core ejection transverse cylinder. The output end of the U-shaped iron core ejection transverse cylinder is connected to a U-shaped iron core ejection head.

[0023] Furthermore, the primary buffer unit includes a feeding rack connected to the frame, the feeding rack is equipped with a feeding motor and a feeding screw, and a U-shaped iron core carrier plate connected to the feeding screw via a connecting block is connected to the feeding rack. The U-shaped iron core carrier plate is arranged with several loading guide rails.

[0024] Furthermore, the positioning mechanism includes a positioning base that facilitates the assembly of the U-shaped iron core and the product housing. A housing positioning lifting cylinder connected to the frame is provided on one side of the positioning base. A housing positioning telescopic cylinder is provided at the output end of the housing positioning lifting cylinder. A housing support backing is connected to the output end of the housing positioning telescopic cylinder.

[0025] Furthermore, the pressing mechanism includes a pressing cylinder disposed above the positioning base, and the output end of the pressing cylinder is connected to a housing and a U-shaped iron core pressing block.

[0026] Furthermore, the iron core push rod mechanism includes a horizontal push motor, and a horizontal push seat is connected to one end of the horizontal push motor near the housing and the U-shaped iron core. A U-shaped iron core push rod is provided in the horizontal push seat, one end of which is connected to the output end of the horizontal push motor. A pressure sensor for detecting the pressure of the U-shaped iron core being pushed into the housing is provided on the horizontal push seat.

[0027] In summary, the present invention has the following beneficial effects: In the onboard current sensor U-shaped iron core feeding and assembly device of the present invention, the U-shaped iron cores are first placed and stored in the primary buffer unit, and then the U-shaped iron cores in the primary buffer unit are received and adjusted by the secondary buffer unit; then, the U-shaped iron core transfer mechanism moves the U-shaped iron cores out of the secondary buffer unit, and the conveying mechanism grabs the U-shaped iron cores moved out by the U-shaped iron core transfer mechanism and transports them to the positioning mechanism where the product housing is placed. The pressing mechanism applies vertical pressure to the product housing and the U-shaped iron core to fix them; finally, the iron core pusher mechanism pushes the U-shaped iron core horizontally into the predetermined position of the product housing. In this way, the placement of the U-shaped iron core and the assembly with the product housing can be automated, avoiding damage to the U-shaped iron core caused by manual operation and the difficulty in controlling the pushing force, which can lead to inaccurate assembly, thereby effectively improving the assembly efficiency and quality. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of the present invention.

[0029] Figure 2 This is a schematic diagram of the structure of the secondary cache unit of the present invention.

[0030] Figure 3 This is a schematic diagram of the transport mechanism of the present invention.

[0031] Figure 4 This is a structural schematic diagram of the U-shaped iron core pushing assembly, the aligning mechanism, and the U-shaped iron core transfer mechanism of the present invention.

[0032] Figure 5 This is an exploded structural diagram of the alignment mechanism of the present invention.

[0033] Figure 6 This is a schematic diagram of the structure of the U-shaped iron core transfer mechanism of the present invention.

[0034] Figure 7 This is a schematic diagram of the structure of the first-level cache unit of the present invention.

[0035] Figure 8 This is a schematic diagram of the positioning mechanism of the present invention.

[0036] Figure 9 This is an exploded structural diagram of the pressing mechanism of the present invention.

[0037] Figure 10 This is a schematic diagram of the iron core push rod mechanism of the present invention.

[0038] In the picture:

[0039] 1. Frame; 2. Feeding module; 3. Assembly module; 21. Primary buffer unit; 22. Secondary buffer unit; 23. U-shaped iron core transfer mechanism; 24. Handling mechanism; 31. Positioning mechanism; 32. Pressing mechanism; 33. Iron core push rod mechanism; 211. Feeding motor; 212. U-shaped iron core carrier plate; 213. Loading guide rail; 221. Roller-type storage bin; 222. U-shaped iron core pushing assembly; 223. Alignment mechanism; 231. Ejection motor; 232. Ejection screw; 233. U-shaped iron core ejection telescopic cylinder; 234. U-shaped iron core ejection lateral movement cylinder; 235. U-shaped iron core ejection head; 241. Handling assembly; 242. U-shaped iron core 243. Suction nozzle; 311. Unloading spring; 312. Positioning base; 313. Housing positioning lifting cylinder; 314. Housing positioning telescopic cylinder; 321. Housing support backrest; 322. Pressing cylinder; 331. Housing and U-shaped iron core pressure block; 332. Horizontal push-in motor; 333. Horizontal push-in seat; 334. U-shaped iron core push rod; 2221. Linear cylinder; 2222. U-shaped iron core push-in cylinder; 2223. U-shaped iron core push-in head; 2231. Alignment motor; 2232. Turntable; 2233. Roller; 2234. U-shaped iron core storage slot; 2235. U-shaped iron core waiting slot; 2411. Transport motor; 2412. Transport lifting cylinder. Detailed Implementation

[0040] The invention will now be further described with reference to the accompanying drawings.

[0041] This embodiment discloses a device for feeding and assembling a U-shaped iron core of an onboard current sensor, referring to... Figure 1 The assembly includes a frame 1, a feeding module 2 mounted on the frame 1 for buffering, aligning, and directional conveying of U-shaped iron cores, the feeding module 2 including a primary buffer unit 21 for batch storage of U-shaped iron cores, a secondary buffer unit 22 connected to the primary buffer unit 21 for receiving and adjusting U-shaped iron cores from the primary buffer unit 21, a U-shaped iron core transfer mechanism 23 for removing U-shaped iron cores from the secondary buffer unit 22, a conveying mechanism 24 for transporting the U-shaped iron cores removed by the U-shaped iron core transfer mechanism 23 to the assembly station, and an assembly module 3 mounted on the frame 1 and located at the assembly station for pressing the U-shaped iron cores delivered by the U-shaped iron core transfer mechanism 23 into the product housing. The U-shaped iron core transfer mechanism 23 pushes the U-shaped iron cores from the secondary buffer unit 22 to the waiting position, and then the conveying mechanism 24 grabs the U-shaped iron cores from the waiting position and transports them to the positioning mechanism 31 of the assembly module 3.

[0042] The assembly module 3 includes a positioning mechanism 31 for placing the product housing and the U-shaped iron core; a pressing mechanism 32 positioned above the positioning mechanism 31 for applying vertical pressure to the product housing and the U-shaped iron core to fix them; and an iron core pusher mechanism 33 positioned on one side of the positioning mechanism 31 to push the U-shaped iron core horizontally into a predetermined position in the product housing. Before the conveying mechanism 24 picks up the U-shaped iron core and transports it to the positioning mechanism 31 of the assembly module 3, the product housing has already been placed in the corresponding position of the positioning mechanism 31. Then, the pressing mechanism 32 applies vertical pressure to the product housing and the U-shaped iron core to fix them. Finally, the iron core pusher mechanism 33 pushes the U-shaped iron core horizontally into the predetermined position in the product housing, completing the automated assembly of the U-shaped iron core and the housing. This avoids damage to the U-shaped iron core caused by manual operation and the difficulty in controlling the pushing force, which can lead to inaccurate assembly, thereby effectively improving assembly efficiency and quality.

[0043] Reference Figure 2 , Figure 4 , Figure 6 The secondary buffer unit 22 includes a roller-type storage bin 221 mounted on the frame 1 and a U-shaped iron core pushing assembly 222 mounted above the output end of the primary buffer unit 21. The U-shaped iron core pushing assembly 222 can push the U-shaped iron cores of the primary buffer unit 21 into the roller-type storage bin 221. The roller-type storage bin 221 is provided with an aligning mechanism 223 for separating and discharging the U-shaped iron cores one by one. The U-shaped iron cores on the primary buffer unit 21 are pushed into the roller-type storage bin 221 by the U-shaped iron core pushing assembly 222, and the U-shaped iron cores are neatly arranged in rows by the aligning mechanism 223. The roller-type storage bin 221 is provided with an adjusting cylinder for adjusting the displacement of the roller-type storage bin 221 at one end near the conveying mechanism 24.

[0044] The alignment mechanism 223 includes an alignment motor 2231, which is a servo motor. The output end of the alignment motor 2231 is connected to a turntable 2232. A roller 2233 is fitted onto the turntable 2232. The roller 2233 has at least two rows of U-shaped iron core storage slots 2234. The output end of each U-shaped iron core storage slot 2234 is correspondingly provided with a U-shaped iron core waiting slot 2235. A receiving slot is provided below the roller 2233 to facilitate the dropping of U-shaped iron cores. The U-shaped iron core pushing assembly 222 includes a linear cylinder 2221. The output end of the linear cylinder 2221 is connected to a U-shaped iron core pushing frame via a pushing slide rail and a pushing slider. The U-shaped iron core pushing frame is equipped with a U-shaped iron core pushing cylinder 2222. The output end of the U-shaped iron core pushing cylinder 2222 is connected to a U-shaped iron core pushing head 22. 23. When the U-shaped iron core is pushed into the roller-type storage bin 221, the U-shaped iron core pushing frame and the U-shaped iron core pushing cylinder 2222 are driven by the linear cylinder 2221 to move based on the pushing slide rail and the pushing slider. At the same time, the whole row motor 2231 drives the roller 2233 to rotate, so that the U-shaped iron core storage slot 2234 is aligned with the corresponding discharge position of the first-level buffer unit 21. The U-shaped iron core pushing cylinder 2222 pushes the U-shaped iron core into the U-shaped iron core storage slot 2234 on the roller 2233 within the first-level buffer unit 21. When a row of U-shaped iron core storage slots 2234 is filled with U-shaped iron cores, the whole row motor 2231 drives the roller 2233 to rotate to the next row of U-shaped iron core storage slots 2234 to align with the corresponding discharge position of the first-level buffer unit 21. This continues until all U-shaped iron core storage slots 2234 are filled.

[0045] In addition, the U-shaped iron core pusher 2223 is equipped with a photoelectric sensor and a spring mechanism. The U-shaped iron core storage slot 2234 is provided with a U-shaped iron core connecting rod. The spring mechanism is located at one end of the U-shaped iron core connecting rod. If jamming or failure to reach the correct position occurs during the push-in process, a signal can be fed back to the PLC system to trigger a stop alarm, preventing damage to the U-shaped iron core. After one U-shaped iron core is pushed into the U-shaped iron core storage slot 2234, the linear cylinder 2221 drives the U-shaped iron core pusher frame, the U-shaped iron core pusher cylinder 2222, and the U-shaped iron core pusher 2223 to move the distance of one U-shaped iron core, so that the next U-shaped iron core can be pushed into the U-shaped iron core storage slot 2234 by the U-shaped iron core pusher cylinder 2222 driving the U-shaped iron core pusher 2223.

[0046] Reference Figure 6The U-shaped iron core transfer mechanism 23 includes a push-out motor 231 and a push-out screw 232 connected to the frame 1. The push-out motor 231 is a servo motor. A U-shaped iron core push-out frame connected to the push-out screw 232 via a connecting block is connected to the frame 1. The U-shaped iron core push-out frame is equipped with a U-shaped iron core push-out telescopic cylinder 233. The output end of the U-shaped iron core push-out telescopic cylinder 233 is connected to a U-shaped iron core push-out transverse cylinder 234. The output end of the U-shaped iron core push-out transverse cylinder 234 is connected to a U-shaped iron core push-out head 235, which pushes the U-shaped iron core into the storage slot. The U-shaped iron core inside 2234 is driven by the ejection motor 231 and the ejection screw 232 to move the U-shaped iron core ejection frame, the U-shaped iron core ejection telescopic cylinder 233, and the U-shaped iron core ejection transverse cylinder 234 to one end close to the first-level buffer unit 21. Then, the U-shaped iron core ejection telescopic cylinder 233 and the U-shaped iron core ejection transverse cylinder 234 move together to adjust the position of the U-shaped iron core ejection head 235. Then, the U-shaped iron core ejection transverse cylinder 234 drives the U-shaped iron core ejection head 235 to push the U-shaped iron core into the U-shaped iron core waiting groove 2235, where it is picked up by the conveying mechanism 24.

[0047] Reference Figure 3The conveying mechanism 24 includes an adsorption component, a stress-relieving component, and a conveying component 241. The conveying component 241 is mounted on the frame 1. The adsorption component is mounted on the conveying component 241 and is used to pick up the U-shaped iron core. The stress-relieving component is connected between the adsorption component and the conveying mechanism 24 and is used to provide a buffer when the adsorption component adsorbs the U-shaped iron core. The conveying component 241 includes a conveying motor 2411, which is a servo motor. The output end of the conveying motor 2411 is connected to a laterally movable conveying lifting cylinder 2412 via a conveying screw. The adsorption component consists of a U-shaped iron core suction nozzle 242 and / or an adsorption cylinder. The U-shaped iron core suction nozzle 242 is driven by the adsorption cylinder to adsorb and release the U-shaped iron core. The U-shaped iron core suction nozzle 242 is located at the output end of the conveying lifting cylinder 2412. The stress-relieving component is located between the conveying lifting cylinder 2412 and the U-shaped iron core. The unloading spring 243 between the suction nozzles 242, when transporting the U-shaped iron core in the U-shaped iron core waiting slot 2235, is driven by the transport motor 2411 to move the transport lifting cylinder 2412, the unloading spring 243, and the U-shaped iron core suction nozzle 242 together to move above the U-shaped iron core waiting slot 2235. Then, the transport lifting cylinder 2412 drives the unloading spring 243 and the U-shaped iron core suction nozzle 242 to descend, so that the U-shaped iron core suction nozzle 242 contacts the U-shaped iron core and adsorbs it. Under the action of the unloading spring 243, the U-shaped iron core is protected. After that, the transport lifting cylinder 2412 drives the unloading spring 243, the U-shaped iron core suction nozzle 242, and the U-shaped iron core to rise. Finally, the transport motor 2411 drives the transport lifting cylinder 2412, the unloading spring 243, the U-shaped iron core suction nozzle 242, and the U-shaped iron core together to move towards the positioning mechanism 31 of the assembly module 3, and place the U-shaped iron core in the positioning mechanism 31.

[0048] Reference Figure 7 The primary buffer unit 21 includes a feeding rack connected to the frame 1. The feeding rack is equipped with a feeding motor 211 and a feeding screw. The feeding motor 211 is a servo motor. A U-shaped iron core carrier 212 is connected to the feeding screw via a connecting block. The U-shaped iron core carrier 212 is arranged with several loading guide rails 213. The feeding screw and the U-shaped iron core carrier 212 are connected by a connecting plate. The connecting plate is equipped with a detection sensor to detect whether there is a U-shaped iron core carrier 212 on it. First, the U-shaped iron core is automatically adsorbed by the adsorption mechanism robot arm and placed neatly in the U-shaped iron core carrier 212 along the loading guide rails 213. Then, the U-shaped iron core carrier 212 is moved to the corresponding position of the roller storage bin 221 by the feeding motor 211 and the feeding screw.

[0049] Reference Figure 8The positioning mechanism 31 includes a positioning base 311 for facilitating the assembly of the U-shaped iron core and the product housing. A housing positioning lifting cylinder 312 connected to the frame 1 is provided on one side of the positioning base 311. A housing positioning telescopic cylinder 313 is provided at the output end of the housing positioning lifting cylinder 312. A housing support backing 314 is connected at the output end of the housing positioning telescopic cylinder 313. The housing support backing 314 is driven by the housing positioning telescopic cylinder 313 to support and fix the rear end of the inner housing of the positioning base 311.

[0050] Reference Figure 9 The pressing mechanism 32 includes a pressing cylinder 321 located above the positioning base 311. The output end of the pressing cylinder 321 is connected to the housing and the U-shaped iron core pressing block 322. The pressing cylinder 321 drives the housing and the U-shaped iron core pressing block 322 to press down, thereby fixing the housing and the U-shaped iron core vertically. It also cooperates with the housing positioning telescopic cylinder 313 and the housing support backing 314 to fix the housing and the U-shaped iron core as a whole.

[0051] Reference Figure 10 The core pusher mechanism 33 includes a horizontal pusher motor 331, which is a servo motor. The end of the horizontal pusher motor 331 near the housing and the U-shaped core is connected to a horizontal pusher seat 332. The horizontal pusher seat 332 is provided with a U-shaped core pusher rod 333, one end of which is connected to the output end of the horizontal pusher motor 331. The horizontal pusher seat 332 is provided with a pressure sensor for detecting the pressure of the U-shaped core being pushed into the housing. After the housing and the U-shaped core are fixed, the horizontal pusher motor 331 drives the U-shaped core pusher rod 333 to horizontally push the U-shaped core into the product housing. During the pushing process, the servo system of the horizontal pusher motor 331 precisely controls the pushing displacement of the U-shaped core, and the pressure monitoring system detects and monitors the pressure in real time to ensure that the U-shaped core is accurately and stably assembled in the housing, while ensuring that the U-shaped core is intact.

[0052] The working principle of this invention is as follows: First, U-shaped iron cores are placed neatly in the U-shaped iron core carrier 212 along the loading guide rail 213. Then, the loading motor 211 and the feeding screw drive the U-shaped iron core carrier 212 to move to the corresponding position with the roller-type storage bin 221, and the presence of the U-shaped iron core carrier 212 is detected by the detection sensor. Then, the linear cylinder 2221 drives the U-shaped iron core pusher and the U-shaped iron core pusher cylinder 2222 to move based on the pusher slide rail and the pusher slider. At the same time, the alignment motor 2231 drives the roller 2233 to rotate, so that the U-shaped iron core storage slot 2234 is aligned with the corresponding discharge position of the primary buffer unit 21. The U-shaped iron core pusher cylinder 2222 pushes the U-shaped iron cores into the U-shaped iron core storage slot 2234 on the roller 2233 within the primary buffer unit 21. When a row of U-shaped iron core storage slots 2234 is filled with U-shaped iron cores... After the core is removed, the entire column motor 2231 drives the roller 2233 to rotate to the next column of U-shaped iron core storage slots 2234 to align with the corresponding discharge of the primary buffer unit 21. This process is repeated multiple times until all U-shaped iron core storage slots 2234 are filled. Then, the U-shaped iron cores pushed into the U-shaped iron core storage slots 2234 are moved to one end near the primary buffer unit 21 by the ejection motor 231 and the ejection screw 232, which drive the U-shaped iron core ejection frame, the U-shaped iron core ejection telescopic cylinder 233, and the U-shaped iron core ejection transverse cylinder 234. Then, the U-shaped iron core ejection telescopic cylinder 233 and the U-shaped iron core ejection transverse cylinder 234 move together to adjust the position of the U-shaped iron core ejection head 235. Finally, the U-shaped iron core ejection transverse cylinder 234 drives the U-shaped iron core ejection head 235 to eject the U-shaped iron core into the U-shaped iron core waiting slot 2235.Then, the transport motor 2411 drives the transport lifting cylinder 2412, the unloading spring 243, and the U-shaped iron core suction nozzle 242 to move together above the U-shaped iron core waiting trough 2235. Next, the transport lifting cylinder 2412 drives the unloading spring 243 and the U-shaped iron core suction nozzle 242 to descend, causing the U-shaped iron core suction nozzle 242 to contact and attract the U-shaped iron core. The unloading spring 243 protects the U-shaped iron core. Afterwards, the transport lifting cylinder 2412 drives the unloading spring 243, the U-shaped iron core suction nozzle 242, and the U-shaped iron core to rise. Finally, the transport motor 2411 drives the transport lifting cylinder 2412, the unloading spring 243, the U-shaped iron core suction nozzle 242, and the U-shaped iron core together... The assembly module 3 moves to the positioning mechanism 31, and places the U-shaped iron core inside the positioning base 311 of the positioning mechanism 31, corresponding to one side of the housing. Then, the housing positioning telescopic cylinder 313 drives the housing support backing 314 to fix the rear end of the housing inside the positioning base 311. The pressing cylinder 321 drives the housing and U-shaped iron core pressing block 322 to press down, fixing the housing and U-shaped iron core vertically. This, in conjunction with the housing positioning telescopic cylinder 313 and the housing support backing 314, fixes the housing and U-shaped iron core as a whole. Finally, the horizontal pushing motor 331 drives the U-shaped iron core push rod 333 to horizontally push the U-shaped iron core into the product housing, thus achieving the assembly of the U-shaped iron core and the product housing.

[0053] The above description is only a preferred embodiment of the present invention. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of this patent application are included in the scope of this patent application.

Claims

1. A device for loading and assembling a U-shaped core of a current sensor on board, characterized in that it comprises: The utility model relates to a kind of U-shaped core automatic assembly device, including: Rack (1); Feeding module (2), the feeding module (2) is arranged on rack (1), for U-shaped core is buffered, is arranged in line and directional transport; The feeding module (2) includes: Primary cache unit (21), the primary cache unit (21) is used to store U-shaped core in batches; Secondary cache unit (22), the secondary cache unit (22) is connected with primary cache unit (21), for receiving and adjusting U-shaped core from primary cache unit (21); U-shaped core transfer mechanism (23), the U-shaped core transfer mechanism (23) is used to remove U-shaped core in secondary cache unit (22); Carrying mechanism (24), the carrying mechanism (24) is used to carry U-shaped core removed by the U-shaped core transfer mechanism (23) to assembly station; Assembly module (3), the assembly module (3) is arranged on rack (1) and is located assembly station, for U-shaped core is pressed into product shell by U-shaped core transfer mechanism (23) arrival; The assembly module (3) includes: Positioning mechanism (31), the positioning mechanism (31) is used to place product shell and U-shaped core; Down mechanism (32), the down mechanism (32) is arranged above the positioning mechanism (31), for product shell and U-shaped core are applied vertical direction's pressure, so that it is fixed; Core push rod mechanism (33), the core push rod mechanism (33) is arranged in one side of the positioning mechanism (31), can U-shaped core is horizontally pushed into the predetermined position of the product shell; The secondary cache unit (22) includes drum type storage (221) arranged on rack (1) and U-shaped core push-in assembly (222) arranged above the output end of the primary cache unit (21), the U-shaped core push-in assembly (222) can push U-shaped core of primary cache unit (21) into drum type storage (221), and the drum type storage (221) is equipped with alignment mechanism (223) for separating U-shaped core one by one and discharging; The alignment mechanism (223) includes alignment motor (2231), the output end of the alignment motor (2231) is connected with carousel (2232), the carousel (2232) is cooperatively sleeved with drum (2233), at least two columns of U-shaped core storage grooves (2234) are formed in the drum (2233), and U-shaped core storage groove (2234) output end is correspondingly provided with U-shaped core standby groove (2235); The U-shaped core push-in assembly (222) includes linear cylinder (2221), the output end of the linear cylinder (2221) is connected with U-shaped core push-in frame through push-in slide rail and push-in slide block, and the U-shaped core push-in frame is equipped with U-shaped core push-in cylinder (2222), and the output end of the U-shaped core push-in cylinder (2222) is connected with U-shaped core push-in head (2223).

2. The on-board current sensor U-shaped core loading and assembling device according to claim 1, characterized in that: The carrying mechanism (24) comprises a suction assembly, a force relief assembly and a carrying assembly (241), the carrying assembly (241) is arranged on the rack (1), the suction assembly is arranged on the carrying assembly (241) and is used for sucking the U-shaped iron core; the force relief assembly is connected between the suction assembly and the carrying mechanism (24) and is used for providing buffering when the suction assembly sucks the U-shaped iron core.

3. The on-board current sensor U-shaped core loading and assembling device according to claim 2, characterized in that: The carrying assembly (241) comprises a carrying motor (2411), the output end of the carrying motor (2411) is connected with a laterally movable carrying lifting cylinder (2412) through a carrying lead screw, the suction assembly is a U-shaped iron core suction nozzle (242), the U-shaped iron core suction nozzle (242) is arranged on the output end of the carrying lifting cylinder (2412), and the force relief assembly is a force relief spring (243) arranged between the carrying lifting cylinder (2412) and the U-shaped iron core suction nozzle (242).

4. The on-board current sensor U-shaped core loading and assembling device of claim 1, wherein: The U-shaped iron core transfer mechanism (23) comprises a pushing-out motor (231) and a pushing-out lead screw (232) connected to the rack (1), the rack (1) is connected with a U-shaped iron core pushing-out frame connected with the pushing-out lead screw (232) through a connecting block, the U-shaped iron core pushing-out frame is provided with a U-shaped iron core pushing-out telescopic cylinder (233), the output end of the U-shaped iron core pushing-out telescopic cylinder (233) is connected with a U-shaped iron core pushing-out horizontal moving cylinder (234), and the output end of the U-shaped iron core pushing-out horizontal moving cylinder (234) is connected with a U-shaped iron core pushing-out head (235).

5. The on-board current sensor U-shaped core loading and assembling device of claim 1, wherein: The first-level cache unit (21) comprises a feeding frame connected to the rack (1), the feeding frame is provided with a feeding motor (211) and a feeding lead screw, and the feeding frame is connected with a U-shaped iron core loading disc (212) connected with the feeding lead screw through a connecting block.

6. The on-board current sensor U-shaped core loading and assembling device of claim 1, wherein: The positioning mechanism (31) comprises a positioning base (311) facilitating assembly of the U-shaped iron core and the product shell, one side of the positioning base (311) is provided with a shell positioning lifting cylinder (312) connected to the rack (1), the output end of the shell positioning lifting cylinder (312) is provided with a shell positioning telescopic cylinder (313), and the output end of the shell positioning telescopic cylinder (313) is connected with a shell supporting abutment (314).

7. The on-board current sensor U-shaped core loading and assembling device according to claim 6, characterized in that: The pressing-down mechanism (32) comprises a pressing-down cylinder (321) arranged above the positioning base (311), and the output end of the pressing-down cylinder (321) is connected with a shell and U-shaped iron core pressing block (322).

8. The on-board current sensor U-shaped core loading and assembling device of claim 1, wherein: The iron core pushing rod mechanism (33) comprises a horizontal pushing-in motor (331), the horizontal pushing-in motor (331) is connected with a horizontal pushing-in seat (332) close to one end of the shell and the U-shaped iron core, the horizontal pushing-in seat (332) is internally provided with a U-shaped iron core pushing rod (333) with one end connected with the output end of the horizontal pushing-in motor (331), and the horizontal pushing-in seat (332) is provided with a pressure sensor for detecting the pressure of the U-shaped iron core pushing into the shell.

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