A needle position detection device

Abstract

This utility model discloses a needle position detection device, relating to the field of needle position detection technology. The device includes a plate chain conveyor with a plate chain conveyor belt inside. Each plate of the plate chain conveyor belt is equipped with a probe head, and a probe is mounted on the upper end of each probe head. Multiple probes are arranged in a rectangular array. A needle position detection mechanism is installed at the rear end of the plate chain conveyor belt at its middle position. The needle position detection mechanism includes a support, an electric guide rail, and an array-type laser detection frame. The electric guide rail is installed in front of the upper end of the support, and a support rod is mounted on the electric guide rail and is kinetically connected to the electric guide rail. The array-type laser detection frame is installed at one end of the support rod. This solution solves the problem that existing methods mainly rely on manual detection of needle offset, which is difficult to achieve high precision and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of needle position detection technology, specifically a needle position detection device. Background Technology

[0002] Currently used PCBs typically require copper pins to be inserted into their surfaces to transmit power and signals, thereby ensuring the stability of the connection between the PCB and the copper pins and the reliability of the circuit. However, during the assembly process, the copper pins may be misaligned, leading to poor contact. Currently, this issue is mainly addressed through manual inspection, which is difficult to achieve with high precision and efficiency. Therefore, we propose a pin position detection device to solve the problems mentioned above. Utility Model Content

[0003] The purpose of this invention is to provide a needle position detection device to solve the problem mentioned in the background art that the existing needle offset detection is mainly done manually, which makes it difficult to achieve high precision and high efficiency.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a needle position detection device, comprising a plate chain conveyor, wherein a plate chain conveyor belt is provided inside the plate chain conveyor, and a probe head is provided on each chain plate of the plate chain conveyor belt. A probe is installed on the upper end of the probe head, and multiple probes are provided, which are distributed in a rectangular array. A needle position detection mechanism is installed at the rear end of the middle position of the plate chain conveyor belt. The needle position detection mechanism includes a bracket, an electric guide rail, and an array laser detection frame. The electric guide rail is installed in front of the upper end of the bracket, and a support rod is installed on the electric guide rail and is kinetically connected to the electric guide rail. The array laser detection frame is installed at one end of the support rod.

[0005] Preferably, the electric guide rail includes a guide rail, a transmission belt, a slider, and a servo motor. The transmission belt is installed inside the guide rail, the slider is connected to the transmission belt, and the servo motor is installed on the outer wall of one end of the guide rail and is connected to the transmission belt.

[0006] Preferably, each array of the array-type laser detection frame is provided with four laser detection heads, which are arranged in a cross shape, and the interval between the emission points of the four laser detection heads does not exceed the edge of the probe end face.

[0007] Preferably, both sides of the rear end of the electric guide rail are connected to the bracket via triangular support plates.

[0008] Preferably, a drive cover is installed on the outer wall of one end of the plate chain conveyor belt, a motor support plate is installed on the outer wall of the drive cover, a stepper motor is installed on the upper end of the motor support plate, the output end of the stepper motor passes through and extends into the interior of the drive cover, and is connected to the plate chain conveyor belt through a transmission mechanism.

[0009] Preferably, three support feet are installed at the lower ends of both sides of the plate chain conveyor belt, and a reinforcing plate is welded between the support feet.

[0010] Preferably, a positioning groove is provided at the connection between the probe head and the chain plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This invention employs a plate chain conveyor to transport probe heads in a stepping motion, and a needle position detection mechanism is installed on the plate chain conveyor. When the probe head moves to the needle position detection mechanism, the electric guide rail on the needle position detection mechanism runs, controlling the array laser detection frame to move directly above one of the probe head's columns. After completion, the laser detection head in the array laser detection frame emits a laser beam to detect the position of that column of probes. Each probe is detected by four cross-shaped detection points. If a probe is misaligned, the laser beam emitted by the four laser detection heads will not be able to detect all the probe end faces. In this case, it is determined that the probe at that array position has been misaligned. Compared with manual detection, it has higher detection accuracy and solves the problem that existing needle misalignment detection mainly relies on manual detection, which is difficult to achieve high precision and efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial enlarged view of point A of this utility model; Figure 3 This is a schematic diagram of the bottom structure of the array-type laser detection frame of this utility model; Figure 4 This is a schematic diagram of the detection principle of this utility model; In the diagram: 1. Plate chain conveyor; 2. Support leg; 3. Reinforcing plate; 4. Drive cover; 5. Motor support plate; 6. Stepper motor; 7. Plate chain conveyor belt; 8. Positioning groove; 9. Probe head; 901. Probe; 10. Needle position detection mechanism; 101. Bracket; 102. Electric guide rail; 103. Triangular support plate; 104. Support rod; 105. Array-type laser detection frame; 1051. Laser detection head. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0014] Please see Figure 1-4 This utility model provides an embodiment of a needle position detection device, comprising a plate chain conveyor 1, an internal plate chain conveyor belt 7, each plate of the plate chain conveyor belt 7 being provided with a probe head 9, a probe 901 being mounted on the upper end of the probe head 9, and multiple probes 901 being arranged in a rectangular array. A needle position detection mechanism 10 is installed at the rear end of the plate chain conveyor belt 7 at the middle position, the needle position detection mechanism 10 comprising a bracket 101, an electric guide rail 102, and an array-type laser detection frame 105. An electric guide rail 102 is installed at the front of the upper end of the bracket 101. A support rod 104 is mounted on the electric guide rail 102, and the support rod 104 is connected to the electric guide rail 102 in a transmission manner. An array-type laser detection frame 105 is installed at one end of the support rod 104. The electric guide rail 102 includes a guide rail, a transmission belt, a slider, and a servo motor. The transmission belt is installed inside the guide rail, and the slider is connected to the transmission belt in a transmission manner. The servo motor is installed on the outer wall of one end of the guide rail and is connected to the transmission belt in a transmission manner. Each array of the array-type laser detection frame 105 is provided with four laser detectors. Four laser detection heads 1051 are arranged in a cross shape, and the interval between the emission points of the four laser detection heads 1051 does not exceed the edge of the probe 901 end face. A drive cover 4 is installed on the outer wall of one end of the plate chain conveyor belt 7. A motor support plate 5 is installed on the outer wall of the drive cover 4. A stepper motor 6 is installed on the upper end of the motor support plate 5. The output end of the stepper motor 6 passes through and extends into the interior of the drive cover 4, and is connected to the plate chain conveyor belt 7 through a transmission mechanism. During operation, the robotic arm loading mechanism cooperates with the stepping plate chain conveyor belt 7 to move the probe 901. The needles 9 are placed sequentially in the positioning slots 8 of the chain plate. When the chain conveyor belt 7 delivers one of the probes 9 to the needle position detection mechanism 10, the electric guide rail 102 on the needle position detection mechanism 10 runs, controlling the array laser detection frame 105 to move directly above one row of probes 901. After completion, the laser detection head 1051 in the array laser detection frame 105 emits a laser beam to detect the position of that row of probes 901. Each probe 901 is detected by four cross-shaped detection points. If a probe 901 deviates, such as... Figure 4 As shown, there may be a situation where the laser beams emitted by the four laser detection heads 1051 cannot detect all the probe 901 end faces. In this case, it is determined that the probe 901 at the position of the array has shifted. After the detection of this column is completed, the electric guide rail 102 continues to control the needle position detection mechanism 10 to move to the next column, thereby completing the position detection of all probes 901 on the probe head 9.

[0015] Furthermore, both sides of the rear end of the electric guide rail 102 are connected to the bracket 101 via triangular support plates 103. Three support feet 2 are installed at the lower ends of both sides of the plate chain conveyor belt 7. Reinforcing plates 3 are welded between the support feet 2. The triangular support plates 103 improve the structural strength of the connection of the electric guide rail 102, and the reinforcing plates 3 improve the stability of the support feet 2.

[0016] Furthermore, a positioning groove 8 is provided at the connection between the probe head 9 and the chain plate. The positioning groove 8 prevents the probe head 9 from shifting when the plate chain conveyor belt 7 transports the probe head 9, thus affecting the subsequent detection effect.

[0017] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A needle position detection device comprising a plate chain conveyor (1), characterized in that: The plate chain conveyor (1) is equipped with a plate chain conveyor belt (7) inside. Each plate of the plate chain conveyor belt (7) is equipped with a probe head (9). The upper end of the probe head (9) is equipped with a probe (901). There are multiple probes (901), and the multiple probes (901) are distributed in a rectangular array. The rear end of the plate chain conveyor belt (7) at the middle position is equipped with a needle position detection mechanism (10). The needle position detection mechanism (10) includes a bracket (101), an electric guide rail (102), and an array laser detection frame (105). The electric guide rail (102) is installed in front of the upper end of the bracket (101). A support rod (104) is installed on the electric guide rail (102), and the support rod (104) is connected to the electric guide rail (102) in a transmission. The array laser detection frame (105) is installed at one end of the support rod (104).

2. The needle position detection device according to claim 1, characterized in that: The electric guide rail (102) includes a guide rail, a transmission belt, a slider, and a servo motor. The transmission belt is installed inside the guide rail, the slider is connected to the transmission belt, and the servo motor is installed on the outer wall of one end of the guide rail and is connected to the transmission belt.

3. The needle position detection device of claim 1, wherein: Each array of the array-type laser detection frame (105) is provided with four laser detection heads (1051), which are arranged in a cross shape, and the emission point interval of the four laser detection heads (1051) does not exceed the edge of the probe (901) end face.

4. The needle position detection device of claim 1, wherein: Both sides of the rear end of the electric guide rail (102) are connected to the bracket (101) through triangular support plates (103).

5. The needle position detection device according to claim 1, characterized in that: A drive cover (4) is installed on the outer wall of one end of the plate chain conveyor belt (7). A motor support plate (5) is installed on the outer wall of the drive cover (4). A stepper motor (6) is installed on the upper end of the motor support plate (5). The output end of the stepper motor (6) passes through and extends into the interior of the drive cover (4), and is connected to the plate chain conveyor belt (7) through a transmission mechanism.

6. The needle position detection device according to claim 1, characterized in that: Three support feet (2) are installed at the lower ends of both sides of the plate chain conveyor belt (7), and a reinforcing plate (3) is welded between the support feet (2).

7. The needle position detection device according to claim 1, characterized in that: A positioning groove (8) is provided at the connection between the probe head (9) and the chain plate.

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