A leakage wave detection device

Abstract

The invention discloses a wave leakage detection device, comprising a frame, wherein a top probe for detecting the top of a microwave oven is mounted on the top of the frame, a multi-axis linkage mechanism is arranged in the middle of the frame, the execution end of the multi-axis linkage mechanism is a plurality of middle probes for detecting the middle of the microwave oven, the middle probes are arranged vertically in a row, a bottom probe for detecting the bottom of the microwave oven is also arranged in the middle of the frame, the front ends of the top probe, the middle probe and the bottom probe are all facing an assembly line for transporting the microwave oven, the wave leakage detection device uses the top, middle and bottom probes to set a plurality of wave leakage detection points, cooperates with the multi-axis linkage mechanism, so that the wave leakage detection points move with a workpiece, and form a plurality of wave leakage detection paths, and each possible wave leakage point of the workpiece is detected, the detection range is comprehensive, and the result reliability is high. The invention is used in the field of electrical appliance detection.

Description

Technical Field

[0001] The invention relates to the field of electrical appliance detection, and in particular to a leakage wave detection device. Background Art

[0002] A microwave oven is a modern cooking appliance that uses microwaves to heat food. It consists of a power supply, a magnetron, a control circuit, and a cooking chamber. The power supply provides a high voltage of about 4,000 volts to the magnetron. Under the excitation of the power supply, the magnetron continuously generates microwaves, which are then coupled into the cooking chamber through a waveguide system. There is a rotatable stirrer near the entrance of the cooking chamber. Because the stirrer is a fan-shaped metal, it can reflect microwaves in all directions when it rotates, so it can evenly distribute the microwave energy in the cooking chamber.

[0003] The principle of microwave heating is that when microwaves are radiated onto food, the food always contains a certain amount of water, and water is composed of polar molecules. The orientation of this polar molecule will change with the microwave field, thereby heating the food.

[0004] A certain amount of microwaves will leak out during the operation of a microwave oven. When the amount of microwaves leaked reaches a certain level, it will cause harm to the human body. However, the development of microwave oven leakage detection devices is relatively lagging, and there is no leakage detection device with a comprehensive detection range and high reliability on the market. Summary of the invention

[0005] The object of the present invention is to provide a leakage wave detection device with comprehensive detection range and high reliability.

[0006] The technical solution adopted by the present invention is:

[0007] A leakage wave detection device comprises a frame, wherein a top probe for detecting the top of a microwave oven is mounted on the top of the frame, a multi-axis linkage mechanism is arranged in the middle of the frame, the execution end of the multi-axis linkage mechanism is a plurality of middle probes for detecting the middle of the microwave oven, the middle probes are arranged vertically in a row, a bottom probe for detecting the bottom of the microwave oven is also arranged in the middle of the frame, and the front ends of the top probe, the middle probe and the bottom probe are all facing the assembly line for transporting the microwave oven.

[0008] As a further improvement of the technical solution of the present invention, the multi-axis linkage mechanism includes an X-axis driving device, a Y-axis driving device is provided on the X-axis driving device, and a Z-axis driving device is provided on the Y-axis driving device.

[0009] As a further improvement of the technical solution of the present invention, the bottom probe is installed at the bottom of the X-axis driving device with an upward tilt.

[0010] As a further improvement of the technical solution of the present invention, a probe mounting plate is vertically mounted on the Z-axis driving device, and three middle probes are vertically mounted in a row on the probe mounting plate.

[0011] As a further improvement of the technical solution of the present invention, the X-axis drive device and the Y-axis drive device are both composed of a servo motor and a ball screw, and the Z-axis drive device is composed of a servo motor and a rotating shaft.

[0012] As a further improvement of the technical solution of the present invention, a top X-axis driving device is mounted on the top of the frame, and the top probe is fixed to the end of the top X-axis driving device.

[0013] As a further improvement of the technical solution of the present invention, a microwave oven pushing device that can push the microwave oven to the detection position is provided on the other side of the assembly line for transporting the microwave oven. The microwave oven pushing device includes a machine base, a horizontal guide rail is provided on the machine base, a pushing mechanism is slidably connected to the horizontal guide rail, and a horizontal driving device is also provided for driving the pushing mechanism to move on the horizontal guide rail. A baffle rod that can be hooked on the microwave oven transport plate is provided on one side of the pushing mechanism, the baffle rod is slidably connected to a fixed seat, and one end of the baffle rod is connected to a driving device for driving the baffle rod to extend and retract.

[0014] As a further improvement of the technical solution of the present invention, the pushing mechanism includes a base plate which is slidably connected to the horizontal guide rail and fixedly connected to the horizontal driving device, guide rods are provided on both sides of the base plate, a cylinder is provided between the two guide rods, and one end of the cylinder and each guide rod is connected to the pushing plate.

[0015] Beneficial effects of the present invention: This leakage wave detection device uses top, middle and bottom probes to set up multiple leakage wave detection points, and cooperates with a multi-axis linkage mechanism to make the leakage wave detection points move with the workpiece to form multiple leakage wave detection paths, and each possible leakage wave point of the workpiece is detected, with a comprehensive detection range and high reliability of the results. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings:

[0017] Figure 1 is a schematic diagram of the overall structure of a leaky wave detection device in an embodiment of the present invention;

[0018] Figure 2 is a schematic structural diagram of an X-axis driving device in an embodiment of the present invention;

[0019] Figure 3 is a schematic structural diagram of a Y-axis driving device in an embodiment of the present invention;

[0020] Figure 4 is a schematic structural diagram of a top X-axis driving device in an embodiment of the present invention;

[0021] Figure 52 is a schematic diagram of the structure of a microwave oven pushing device according to an embodiment of the present invention;

[0022] Figure 6 2 is a schematic diagram of the structure of the baffle rod in an embodiment of the present invention. DETAILED DESCRIPTION

[0023] Reference Figure 1 to Figure 6 The present invention is a leakage wave detection device, comprising a frame 10, a top probe 1 for detecting the top of a microwave oven is mounted on the top of the frame 10, a multi-axis linkage mechanism is arranged in the middle of the frame 10, the execution end of the multi-axis linkage mechanism is a plurality of middle probes 2 for detecting the middle of the microwave oven, the middle probes 2 are arranged vertically in a row, and a bottom probe 3 for detecting the bottom of the microwave oven is also arranged in the middle of the frame 10, and the front ends of the top probe 1, the middle probe 2 and the bottom probe 3 are all facing the assembly line for transporting the microwave oven.

[0024] As a preferred embodiment of the present invention, the multi-axis linkage mechanism includes an X-axis driving device 5 , a Y-axis driving device 6 is disposed on the X-axis driving device 5 , and a Z-axis driving device 7 is disposed on the Y-axis driving device 6 .

[0025] As a preferred embodiment of the present invention, the bottom probe 3 is installed at the bottom of the X-axis driving device 5 at an upward tilt to detect the door gap at the bottom of the microwave oven without interfering with the transport plate for transporting the microwave oven.

[0026] As a preferred embodiment of the present invention, a probe mounting plate 8 is vertically mounted on the Z-axis driving device 7, and three middle probes 2 are vertically mounted in a row on the probe mounting plate 8, which can form three detection tracks on the front of the microwave oven to obtain multiple sets of data.

[0027] As a preferred embodiment of the present invention, the X-axis driving device 5 and the Y-axis driving device 6 are both composed of a servo motor and a ball screw, and the Z-axis driving device 7 is composed of a servo motor and a rotating shaft.

[0028] As a preferred embodiment of the present invention, a top X-axis driving device 4 is mounted on the top of the frame 10 , and the top probe 1 is fixed to the end of the top X-axis driving device 4 .

[0029] As a preferred embodiment of the present invention, a microwave oven pushing device that can push the microwave oven to the detection position is provided on the other side of the assembly line for transporting the microwave oven. The microwave oven pushing device includes a base 15, a horizontal guide rail 11 is provided on the base 15, a pushing mechanism 12 is slidably connected to the horizontal guide rail 11, and a horizontal driving device 19 is also provided for driving the pushing mechanism 12 to move on the horizontal guide rail 11. A baffle rod 18 that can be hooked on the microwave oven transport plate is provided on one side of the pushing mechanism 12. The baffle rod 18 is slidably connected to the fixed seat 13, and one end of the baffle rod 18 is connected to a driving device 16 for driving the baffle rod 18 to extend and retract.

[0030] As a preferred embodiment of the present invention, the pushing mechanism 12 includes a base plate 21 which is slidably connected to the horizontal guide rail 11 and fixedly connected to the horizontal driving device 19. Guide rods 22 are provided on both sides of the base plate 21. A cylinder is provided between the two guide rods 22. One end of the cylinder and each guide rod 22 is connected to the pushing plate 14.

[0031] Specifically, when the incoming material sensor installed on the microwave oven pushing device senses that the microwave oven flows through the test assembly line, the device starts to operate. At this time, the baffle 18 is in an extended state. When the transport plate for transporting the microwave oven flows in front of the microwave oven pushing device, the baffle 18 will be hooked at the front end of the transport plate, driving the pushing mechanism 12 to flow forward at the same speed as the microwave oven, and then the pushing mechanism 12 pushes the microwave oven forward, ensuring that the displacement of each position of the furnace body is consistent, and the displacement is 185mm. When the distance sensor installed at the front end of the baffle 18 senses that the microwave oven pushing action has been completed, the drive device 16 drives the baffle 18 to retract, the microwave oven flows forward alone, and the horizontal drive device 19 drives the pushing mechanism 12 back to the origin, waiting for the next action cycle.

[0032] The microwave oven continues to flow forward to the detection position. When the sensor installed at the front end of the leakage wave detection device senses that the microwave oven has entered the detection position, the device starts to work. At this time, the top X-axis drive device 4 drives the top probe 1 to move to the front end of the microwave oven to detect the top door gap of the microwave oven. The three-axis linkage mechanism drives the middle probe 2 to detect the vertical door gap of the microwave oven and the connection between the oven door and the oven body. The bottom probe 3 detects the bottom door gap of the microwave oven. Specifically, during the detection, the distance between each probe and the microwave oven is 4.5mm±0.5mm, and because the front of the microwave oven is not on an ideal straight line during transportation, the Y-axis drive device 6 needs to be continuously fine-tuned to meet this condition. A flow speed detection device is also provided on the microwave oven transportation line, and the flow speed of the line is obtained through this flow speed detection device. The leakage wave detection device can adjust the movement speed of the probe in real time according to the flow speed, and keep the relative speed between the probe and the microwave oven at 25mm / s.

[0033] Since the microwave oven door is provided with a door handle, when the door handle flows to the detection position, the Z-axis driving device 7 drives the middle probe 2 to rotate, avoid the door handle, and adjust the angle to detect the door handle.

[0034] In this embodiment, three middle probes 2 are provided. In actual operation, the installation positions and the number of the middle probes 2 can be adjusted according to the size of the microwave oven and the requirements of the detection accuracy.

[0035] Of course, the invention is not limited to the above-mentioned embodiments, and those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A leakage wave detection device, characterized in that: The invention comprises a frame (10), wherein a top probe (1) for detecting the top of a microwave oven is mounted on the top of the frame (10), a multi-axis linkage mechanism is arranged in the middle of the frame (10), the execution end of the multi-axis linkage mechanism is a plurality of middle probes (2) for detecting the middle of the microwave oven, the middle probes (2) are arranged vertically in a row, and a bottom probe (3) for detecting the bottom of the microwave oven is also arranged in the middle of the frame (10), the front ends of the top probe (1), the middle probe (2) and the bottom probe (3) are all facing the assembly line for transporting the microwave oven; a microwave oven pushing device for pushing the microwave oven to a detection position is arranged on the other side of the assembly line for transporting the microwave oven, and the microwave oven pushing device comprises a base (15), and a horizontal guide rail (11) is arranged on the base (15), and the horizontal guide rail (11) 1) is slidably connected with a pushing mechanism (12), and is also provided with a horizontal driving device (19) for driving the pushing mechanism (12) to move on the horizontal guide rail (11); a baffle rod (18) which can be hooked on the microwave oven transport plate is provided on one side of the pushing mechanism (12); the baffle rod (18) is slidably connected with a fixing seat (13); one end of the baffle rod (18) is connected with a driving device (16) for driving the baffle rod (18) to extend and retract; the assembly line is provided with a flow speed detection device, the flow speed detection device is used to obtain the flow speed of the assembly line; the leakage wave detection device is used to adjust the movement speed of the top probe, the middle probe and the bottom probe in real time according to the flow speed detected by the flow speed detection device, so as to maintain the relative speed between the leakage wave detection device and the microwave oven.

2. The leaky wave detection device according to claim 1, characterized in that: The multi-axis linkage mechanism comprises an X-axis driving device (5), a Y-axis driving device (6) is arranged on the X-axis driving device (5), and a Z-axis driving device (7) is arranged on the Y-axis driving device (6).

3. The leaky wave detection device according to claim 2, characterized in that: The bottom probe (3) is installed at the bottom of the X-axis driving device (5) in an upward tilted manner.

4. The leaky wave detection device according to claim 2, characterized in that: A probe mounting plate (8) is vertically mounted on the Z-axis driving device (7), and three middle probes (2) are vertically mounted in a row on the probe mounting plate (8).

5. The leaky wave detection device according to claim 2, characterized in that: The X-axis drive device (5) and the Y-axis drive device (6) are both composed of a servo motor and a ball screw, and the Z-axis drive device (7) is composed of a servo motor and a rotating shaft.

6. The leaky wave detection device according to claim 1, characterized in that: A top X-axis driving device (4) is mounted on the top of the frame, and the top probe (1) is fixed to the end of the top X-axis driving device (4).

7. The leaky wave detection device according to claim 1, characterized in that: The pushing mechanism (12) comprises a base plate (21) slidably connected to the horizontal guide rail (11) and fixedly connected to the horizontal driving device (19), guide rods (22) are provided on both sides of the base plate (21), a cylinder is provided between the two guide rods (22), and one end of the cylinder and each guide rod (22) is connected to the pushing plate (14).

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