A coil circuit board assembly apparatus for current sensor processing

Abstract

This application relates to the field of current sensor processing equipment, and discloses a coil circuit board assembly device for current sensor processing. The device includes two conveyors: one for conveying circuit boards and the other for conveying coils. A centering and limiting mechanism is installed along the conveying path of each conveyor. A positioning platform is installed at the outlet of each conveyor, and a vibrator is fixedly connected to the bottom of the positioning platform. The vibrator drives the positioning platform to vibrate, causing the circuit board and coil conveyed to the positioning platform to fall into a preset position. A material clamping mechanism is installed above the positioning platform to assemble the circuit board on one positioning platform with the coil on the other. Through the cooperation of the centering and limiting mechanism, the positioning platform, and the material clamping mechanism, precise assembly of the circuit board and coil is achieved, and the entire assembly process is reproducible, thus realizing automated assembly of the circuit board and coil and improving production efficiency.

Description

Technical Field

[0001] This invention relates to the field of current sensor processing equipment, specifically to a coil circuit board assembly equipment for current sensor processing. Background Technology

[0002] A current sensor is a device that detects and converts current signals, and it is widely used in various fields, such as industrial control, automotive electronics, and new energy. Currently, common current sensors include open-loop or closed-loop current sensors based on the transformer principle, magnetoresistive or magnetostrictive current sensors based on the magnetoresistive or magnetostrictive effect, and Hall or giant magnetoresistive current sensors based on the Hall effect or giant magnetoresistive effect. Among these, current sensors based on the Hall effect or giant magnetoresistive effect have advantages such as being contactless, lossless, having a fast response speed, a wide frequency range, and strong anti-interference ability, and therefore have received widespread attention and application. These current sensors typically consist of a coil and a Hall element or giant magnetoresistive element. The coil generates a magnetic field proportional to the measured current, and the Hall element or giant magnetoresistive element detects this magnetic field and outputs a voltage signal proportional to the measured current.

[0003] The coil circuit board is a key component of the current sensor. In the manufacturing process, the coil circuit board is assembled by inserting the coil pins into the corresponding holes on the circuit board and then soldering them together. Because high precision is required when inserting the two parts, the coil circuit board is generally assembled manually or semi-automatically. Manual assembly involves manually connecting and soldering the two parts, which results in low production efficiency and cannot meet the needs of mass production. Semi-automatic assembly often involves manually connecting the two parts and then using an automatic soldering device to perform the soldering step. This method still suffers from low production efficiency. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a coil circuit board assembly device for current sensor processing, which solves the problem of low assembly efficiency of coil circuit boards.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a coil circuit board assembly device for current sensor processing, comprising two conveyors, one conveyor for conveying circuit boards and the other conveyor for conveying coils. A centering limit mechanism is provided along the conveying path of each conveyor. A positioning platform is provided at the outlet of each conveyor. A vibrator is fixedly connected to the bottom of the positioning platform. The vibrator drives the positioning platform to vibrate, causing the circuit boards and coils conveyed to the positioning platform to fall into preset positions. A material clamping mechanism is provided above the positioning platform for assembling the circuit boards on one positioning platform with the coils on the other positioning platform.

[0006] Preferably, the centering limiting mechanism includes limiting plates, two of which are symmetrically arranged around the center line of the conveyor to form a Y-shaped limiting channel. The opposite sides of the two limiting plates are fixedly connected to fixed frames, and the lower parts of the two fixed frames are slidably connected to the two moving ends of the bidirectional screw guide rail. The bidirectional screw guide rail is used to drive the two fixed frames to move synchronously in opposite directions.

[0007] Preferably, the two limiting plates are respectively embedded and rotatably connected with uniformly distributed rollers on their opposite surfaces.

[0008] Preferably, the positioning platform includes a base, with a matrix-arranged sliding sleeve fixedly connected to the upper part of the base. The lower part of the base has an inner cavity, and a top rod is fitted and slidably connected inside the sliding sleeve. The bottom end of the top rod is fixedly connected to one end of a spring, and the other end of the spring is fixedly connected to the bottom wall of the inner cavity. A hydraulic locking disc is fixedly connected to the side wall of the inner cavity. The locking holes of the hydraulic locking disc correspond one-to-one with the top rods and are fitted onto the outer wall of the top rods for locking the top rods.

[0009] Preferably, a ball bearing is embedded in and slidably connected to the top of the top rod.

[0010] Preferably, guide grooves are fixedly connected to two opposite corners of the positioning platform, and the guide grooves are used to fit guide columns when the positioning platform is preset in position.

[0011] Preferably, laser positioner receivers are fixedly connected to the other two opposite corners of the positioning platform.

[0012] Preferably, the material clamping mechanism includes a gantry frame spanning above two positioning platforms. A linear guide motor is fixedly connected to the outer wall of the gantry frame beam. A telescopic cylinder is fixedly connected to the moving end of the linear guide motor. A positioning seat is fixedly connected to the output end of the telescopic cylinder. A matrix of threaded holes is provided at the lower part of the positioning seat. A vacuum adsorption clamp is threaded into the threaded holes. Laser positioner transmitters are fixedly connected to two opposite corners of the positioning seat, and the laser positioner transmitters and receivers correspond one-to-one.

[0013] This invention provides a coil circuit board assembly device for current sensor processing. It has the following advantages: 1. This invention uses a centering and limiting mechanism to move objects along a defined path, causing them to fall into a positioning table in a uniform shape. A vibrating machine then drives the positioning table to vibrate at high frequency and low amplitude, ensuring the objects fall into a preset position on the table, thus achieving the positioning effect. Simultaneously, a material clamping mechanism, through the matching of the laser positioner transmitter on its positioning seat with the laser positioner receiver on the positioning table, achieves precise positioning, clamping, and movement. This enables precise assembly of circuit boards and coils, and the entire assembly process is reproducible, thereby automating the assembly of circuit boards and coils and improving production efficiency.

[0014] 2. By setting up a positioning platform, the top rod of the invention is partially recessed according to the shape of the object to form a positioning groove to accommodate the object, thereby meeting the positioning needs of objects of different shapes and making the whole device have excellent versatility. Attached Figure Description

[0015] Figure 1 This is a perspective view of the assembly equipment in this invention; Figure 2 This is a three-dimensional schematic diagram of the centering and limiting mechanism in this invention; Figure 3 This is a schematic diagram of the internal structure of the positioning stage in this invention; Figure 4 This is a top-view perspective view of the positioning platform in this invention; Figure 5 This is a three-dimensional schematic diagram showing the position of the positioning platform in this invention. Figure 6 This is a three-dimensional schematic diagram of the positioning stage and material clamping mechanism in this invention during positioning.

[0016] The components include: 1. Conveyor; 2. Positioning table; 201. Base; 202. Sliding sleeve; 203. Top rod; 204. Inner cavity; 205. Spring; 206. Hydraulic locking disc; 207. Ball bearing; 3. Vibrating machine; 4. Limiting plate; 5. Fixing frame; 6. Bidirectional screw guide rail with positive and negative threads; 7. Roller; 8. Guide groove; 9. Guide column; 10. Laser positioner receiver; 11. Laser positioner transmitter; 12. Gantry frame; 13. Linear guide motor; 14. Telescopic cylinder; 15. Positioning seat; 16. Vacuum adsorption fixture. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. 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.

[0018] Please see the appendix Figure 1 -Appendix Figure 6 This invention provides a coil circuit board assembly device for current sensor processing, including two conveyors 1. One conveyor 1 is used to transport circuit boards, and the other conveyor 1 is used to transport coils. A centering limit mechanism is provided on the transport path of the conveyor 1. A positioning table 2 is provided at the discharge port of the conveyor 1. A vibrator 3 is fixedly connected to the bottom of the positioning table 2. The vibrator 3 is used to drive the positioning table 2 to vibrate, so that the circuit board and coil transported to the positioning table 2 fall into a preset position. A material clamping mechanism is provided above the positioning table 2 for assembling the circuit board on one positioning table 2 and the coil on the other positioning table 2.

[0019] The centering and limiting mechanism moves the object along a defined path, causing it to fall into the positioning table 2 in a uniform shape. Then, the vibrating machine 3 drives the positioning table 2 to vibrate at a high frequency and low amplitude, causing the object to fall into the preset position on the positioning table 2, thereby achieving the positioning effect. At the same time, in conjunction with the material clamping mechanism, the laser positioner transmitter 11 on its positioning seat matches the laser positioner receiver 10 on the positioning table, thereby achieving precise positioning and clamping movement. This enables the precise assembly of the circuit board and the coil, and the entire assembly process has a repeatable effect, thus realizing the automated assembly of the circuit board and the coil and improving production efficiency.

[0020] The centering limiting mechanism includes a limiting plate 4. The two limiting plates 4 are symmetrically arranged with respect to the center line of the conveyor 1 to form a Y-shaped limiting channel. The two limiting plates 4 are fixedly connected to the opposite sides of a fixed frame 5. The lower parts of the two fixed frames 5 are slidably connected to the two moving ends of a bidirectional screw guide rail 6 with positive and negative threads. The bidirectional screw guide rail 6 with positive and negative threads is used to drive the two fixed frames 5 to move synchronously in opposite directions.

[0021] The two fixed frames 5 are driven to move synchronously in opposite directions by the bidirectional lead screw guide rail 6 with positive and negative threads, thereby achieving the purpose of adjusting the distance between the two fixed frames 5 to meet the centering and limiting requirements of objects of different sizes.

[0022] When the object moves on the conveyor 1, it is limited by the Y-shaped limiting channel formed by the two fixed frames 5, so that the object maintains a uniform shape and moves along the Y-shaped limiting channel, so as to ensure that the object falls onto the positioning table 2 with a uniform standard.

[0023] Two limiting plates 4 are respectively embedded and rotatably connected to evenly distributed rollers 7 on their opposite surfaces.

[0024] By using rollers 7, the sliding friction between the fixing frame 5 and the object is converted into rolling friction. This ensures that the distance between the two fixing frames 5 matches the object to the maximum extent possible, thus improving the centering and limiting effect, while avoiding damage to the object.

[0025] The positioning platform 2 includes a base 201. A sliding sleeve 202 arranged in a matrix is ​​fixedly connected to the upper part of the base 201. An inner cavity 204 is provided in the lower part of the base 201. A push rod 203 is sleeved and slidably connected inside the sliding sleeve 202. The bottom end of the push rod 203 is fixedly connected to one end of a spring 205. The other end of the spring 205 is fixedly connected to the bottom wall of the inner cavity 204. A hydraulic locking disc 206 is fixedly connected to the side wall of the inner cavity 204. The locking holes of the hydraulic locking disc 206 correspond one-to-one with the push rod 203 and are sleeved on the outer wall of the push rod 203 for locking the push rod 203.

[0026] By setting the positioning platform 2, its top rod 203 is partially recessed according to the shape of the object to form a positioning groove to accommodate the object, thereby meeting the positioning needs of objects of different shapes and making the whole device have excellent versatility.

[0027] The two opposite corners of the positioning platform 2 are respectively fixedly connected with guide grooves 8, which are used to fit guide posts 9 when the positioning platform 2 is preset in position.

[0028] Before use, the positioning stage 2 needs to be preset with its positioning position. The steps are as follows: First, guide pins 9 are inserted into guide grooves 8 on one positioning platform 2. Then, a model identical to the assembled product is placed on the top rods 203 of this positioning platform 2. Next, the other positioning platform 2 is flipped over so that it is positioned above the first positioning platform 2. Simultaneously, its guide grooves 8 are inserted into guide pins 9 and pressed down. At this time, under the resistance of the model, parts of the top rods 203 of the two positioning platforms 2 are recessed accordingly, forming matching positioning grooves. Then, the hydraulic locking disc 206 is used to lock and fix the position of the top rods 203, thus completing the preset positioning position. Through the above method, the positioning positions of the two positioning platforms 2 are matched, thereby ensuring the accuracy of assembly.

[0029] The top of the push rod 203 is inlaid with and slidably connected to a ball bearing 207.

[0030] By using the ball bearing 207, the object moves faster on the vibrating positioning table 2, while also preventing the object from getting stuck with the push rod 203.

[0031] The other two opposite corners of the positioning platform 2 are respectively fixedly connected to laser positioning receivers 10.

[0032] The material clamping mechanism includes a gantry frame 12, which spans above two positioning platforms 2. A linear guide motor 13 is fixedly connected to the outer wall of the crossbeam of the gantry frame 12. A telescopic cylinder 14 is fixedly connected to the moving end of the linear guide motor 13. A positioning seat 15 is fixedly connected to the output end of the telescopic cylinder 14. A matrix of threaded holes is provided at the lower part of the positioning seat 15. A vacuum adsorption clamp 16 is threaded into the threaded holes. Laser positioner transmitters 11 are fixedly connected to two opposite corners of the positioning seat 15. The laser positioner transmitters 11 and laser positioner receivers 10 correspond one-to-one.

[0033] The linear guide motor 13 is used to move the vacuum adsorption fixture 16 between the two positioning tables 2. The specific operating steps of the material clamping mechanism are as follows: The vacuum adsorption clamp 16 is moved by the linear guide motor 13. When the signals emitted by the two laser positioner transmitters 11 on the positioning seat 15 are simultaneously received by the laser positioner receivers 10 on the positioning platform 2, it means that the clamping position is correct. The vacuum adsorption clamp 16 is then driven to rise and fall by the telescopic cylinder 14 to clamp the circuit board. The circuit board is then moved to the top of another positioning platform 2 by the linear guide motor 13. The same secondary positioning is performed. When the position is correct, the circuit board is driven to fall above the coil by the telescopic cylinder 14, and the two are inserted into a relative position.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A coil circuit board assembly device for current sensor processing, comprising two conveyors (1), characterized in that, One conveyor (1) is used to transport circuit boards, and another conveyor (1) is used to transport coils. A centering limit mechanism is provided on the conveying path of the conveyor (1). A positioning platform (2) is provided at the discharge port of the conveyor (1). A vibrator (3) is fixedly connected to the bottom of the positioning platform (2). The vibrator (3) is used to drive the positioning platform (2) to vibrate, so that the circuit boards and coils transported to the positioning platform (2) fall into the preset position. A material clamping mechanism is provided above the positioning platform (2) for assembling the circuit boards on one positioning platform (2) with the coils on the other positioning platform (2). The centering limiting mechanism includes a limiting plate (4). The two limiting plates (4) are symmetrically arranged with respect to the center line of the conveyor (1) to form a Y-shaped limiting channel. The two limiting plates (4) are fixedly connected to a fixed frame (5) on opposite sides. The lower parts of the two fixed frames (5) are slidably connected to the two moving ends of the bidirectional screw guide rail (6). The bidirectional screw guide rail (6) is used to drive the two fixed frames (5) to move synchronously in opposite directions. The positioning platform (2) includes a base (201), and a sliding sleeve (202) arranged in a matrix is ​​fixedly connected to the upper part of the base (201). An inner cavity (204) is provided in the lower part of the base (201). A top rod (203) is sleeved and slidably connected inside the sliding sleeve (202). The bottom end of the top rod (203) is fixedly connected to one end of a spring (205), and the other end of the spring (205) is fixedly connected to the bottom wall of the inner cavity (204). A hydraulic locking disc (206) is fixedly connected to the side wall of the inner cavity (204). The locking holes of the hydraulic locking disc (206) correspond one-to-one with the top rod (203) and are sleeved on the outer wall of the top rod (203) for locking the top rod (203).

2. The coil circuit board assembly equipment for current sensor processing according to claim 1, characterized in that, The two limiting plates (4) are respectively embedded and rotatably connected with uniformly distributed rollers (7) on their opposite surfaces.

3. The coil circuit board assembly equipment for current sensor processing according to claim 1, characterized in that, The top of the top rod (203) is inlaid with and slidably connected to a ball bearing (207).

4. The coil circuit board assembly equipment for current sensor processing according to claim 3, characterized in that, The positioning platform (2) has guide grooves (8) fixedly connected to its two opposite corners. The guide grooves (8) are used to fit the guide post (9) when the positioning platform (2) is preset in position.

5. The coil circuit board assembly equipment for current sensor processing according to claim 4, characterized in that, The positioning platform (2) has laser positioning receivers (10) fixedly connected to its other two opposite corners.

6. The coil circuit board assembly equipment for current sensor processing according to claim 5, characterized in that, The material clamping mechanism includes a gantry (12), which spans above two positioning platforms (2). A linear guide motor (13) is fixedly connected to the outer wall of the crossbeam of the gantry (12). A telescopic cylinder (14) is fixedly connected to the moving end of the linear guide motor (13). A positioning seat (15) is fixedly connected to the output end of the telescopic cylinder (14). A matrix of threaded holes is provided at the lower part of the positioning seat (15). A vacuum adsorption clamp (16) is threaded inside the threaded holes. A laser locator transmitter (11) is fixedly connected to two opposite corners of the positioning seat (15). The laser locator transmitter (11) and the laser locator receiver (10) correspond one-to-one.

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