Grounding tool and electrical safety detection device formed by same

Abstract

The utility model provides a grounding tool and an electrical safety detection device formed by the grounding tool, the grounding tool comprises a driving member and a grounding assembly, the grounding assembly comprises a bottom plate and a top plate which are oppositely arranged, and the bottom plate is provided with a grounding terminal; the top plate is connected with a driving piece, the driving piece is used for driving the grounding assembly to move towards the direction close to or away from the workpiece, and when the grounding assembly moves to the side edge of the workpiece, the grounding terminal is electrically connected with a grounding part in the workpiece. According to the invention, the driving part drives the grounding assembly to move, automatic electric connection between the grounding terminal and the workpiece can be realized, automatic grounding connection of the workpiece is further realized, the defect of manual grounding in the prior art is avoided, and the efficiency and precision of workpiece grounding connection are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical safety detection, in particular to a grounding tool and an electrical safety detection device formed thereof. Background Art

[0002] To ensure product reliability and prevent leakage during use, air conditioner manufacturers use a comprehensive safety parameter tester during the later stages of air conditioner outdoor unit assembly to measure four electrical safety parameters: ground resistance, insulation resistance, leakage current, and dielectric strength (commonly known as withstand voltage). This is used to monitor the product's electrical safety performance. During this electrical safety performance test, the comprehensive safety parameter tester must form a circuit with the air conditioner.

[0003] The existing technology uses a handheld grounding clamp to manually test the grounding process. The test process is divided into two steps:

[0004] First, clamp the grounding clamp to the sheet metal part of the tested machine's housing or to the large and small valves;

[0005] Secondly, fasten the wiring fixture to the device under test. Different models of the device under test require different wiring fixtures. Connect the device under test to the tester through the corresponding wiring fixture.

[0006] At this point, the grounding clamp, the device under test and the tester form a circuit, and the tester performs tests on grounding resistance, insulation resistance, leakage current and electrical strength in turn.

[0007] In the prior art, since the grounding clamp needs to be aligned with a specific position in the machine under test, it can only be achieved through manual clamping, which is not conducive to the automated installation and automated control of the test tooling. In addition, due to errors in manual operation, poor grounding is likely to occur.

[0008] At the same time, during manual operation, if there is residual voltage in the machine under test, there will be a safety hazard, which is not conducive to safe production. Utility Model Content

[0009] In order to overcome the problems existing in the related technology, one of the purposes of the present utility model is to provide a grounding tool, which drives the grounding component to move through a driving part, thereby realizing automatic electrical connection between the grounding terminal and the workpiece, and then realizing automatic grounding connection of the workpiece, avoiding the defects of manual grounding in the existing technology, and improving the efficiency and accuracy of the workpiece grounding connection.

[0010] A grounding tool, comprising a driving member and a grounding assembly, wherein the grounding assembly comprises a bottom plate and a top plate arranged opposite to each other, and the bottom plate is provided with a grounding terminal;

[0011] The top plate is connected to a driving member, which is used to drive the grounding component to move toward or away from the workpiece. When the grounding component moves to the side of the workpiece, the grounding terminal is electrically connected to the grounding portion in the workpiece.

[0012] The present application realizes automatic grounding connection of the workpiece by driving the grounding assembly to move through a driving member, avoids the defects of manual grounding in the prior art, and improves the efficiency and accuracy of the grounding connection of the workpiece.

[0013] In a preferred technical solution of the present invention, the bottom plate includes a conductive plate and an insulating plate, the insulating plate is located on the side of the conductive plate close to the top plate, and the grounding terminal is conductively connected to the conductive plate; when the grounding component moves to the side of the workpiece, the grounding terminal is electrically connected to the grounding part in the workpiece through the conductive plate.

[0014] This application uses a conductive plate as an extension of the grounding terminal. Compared with the grounding terminal, the conductive plate has a larger surface area, which effectively increases the contact area of ​​the workpiece grounding, further ensuring that the workpiece is quickly and effectively grounded.

[0015] In a preferred technical solution of the present invention, a guide shaft is provided between the top plate and the bottom plate, the guide shaft is fixedly connected to the top plate, and the guide shaft is slidably connected to the bottom plate; a spring is sleeved on the outside of the guide shaft, and the two ends of the spring are respectively in contact with the top plate and the bottom plate.

[0016] When the driving member drives the grounding assembly to move close to the workpiece and the base plate abuts the workpiece, due to the sliding connection between the base plate and the guide shaft, the spring is slightly compressed at this time, achieving buffered contact between the base plate and the workpiece. At the same time, the spring will also exert pressure on the base plate to ensure that the conductive plate or the grounding terminal is in full contact with the grounded part of the workpiece, thereby ensuring that a reliable electrical circuit is formed between the workpiece and the grounding terminal.

[0017] In a preferred technical solution of the present utility model, the workpiece is located on the transmission line, and the driving member is located on the side of the transmission line;

[0018] The driving member includes a rotating cylinder and a connecting member, and the output end of the rotating cylinder is connected to the top plate through the connecting member; the rotating cylinder drives the grounding component to rotate above the transmission line or to the side of the transmission line.

[0019] In this application, the rotary cylinder and the transmission line cooperate with each other to achieve grounding of the workpiece during the workpiece transmission process. Specifically, the workpieces on the transmission line are sequentially subjected to electrical safety inspections. The position of the rotary cylinder is exactly at the inspection station. When the workpiece is transmitted to the inspection station, the rotary cylinder drives the grounding component to abut against the workpiece to achieve electrical safety performance testing of the workpiece. After the workpiece inspection is completed, the rotary cylinder drives the grounding component to avoid the workpiece to ensure normal transmission of the workpiece. The structure and setting of this application can improve the efficiency of workpiece detection and transmission.

[0020] The second purpose of the present utility model is to provide an electrical safety detection device; including a grounding tool as described above, and also including a detection tool and a detector, and an electrical circuit is formed between the detection tool, the detector, the grounding tool and the workpiece.

[0021] The grounding tool in this application can realize automatic leveling of the grounding terminal and the grounding end of the workpiece, avoiding the defects of manual grounding in the existing technology, improving the efficiency and accuracy of the workpiece grounding connection, and improving the efficiency and accuracy of electrical safety testing.

[0022] In a preferred technical solution of the present invention, the detection tooling includes a grounding probe, a neutral wire probe and a live wire probe, wherein the neutral wire probe and the live wire probe are connected to the first terminal and the second terminal of the detector, the grounding probe is connected to the first grounding terminal of the detector, and the grounding terminal is connected to the second grounding terminal of the detector, and the neutral wire probe and the live wire probe are simultaneously connected to the neutral wire and the live wire in the workpiece.

[0023] In a preferred technical solution of the present invention, the detection tooling also includes a motor, a coupling and a screw nut, the output end of the motor is connected to the coupling; the screw nut is located in the coupling; the neutral line probe or the live line probe is fixedly connected to the screw nut.

[0024] The neutral probe is secured to a lead screw nut via a connecting bracket. The lead screw nut is located within a coupling that connects to the motor's output. When the motor rotates, the coupling rotates, which in turn changes the position of the lead screw nut, changing the distance between the neutral and live probes to accommodate different air conditioner outdoor unit models.

[0025] In a preferred technical solution of the present invention, there are two grounding probes, and the two grounding probes are arranged in parallel.

[0026] In the present application, two grounding probes are arranged in parallel with the neutral probe and the live probe and are staggered. The reason for setting two grounding probes is to ensure 100% grounding of the workpiece.

[0027] In a preferred technical solution of the present utility model, the detection tooling is located in a robotic arm, and the robotic arm can drive the detection tooling to move;

[0028] The inspection tool further includes a camera. When the inspection tool moves to the side of the workpiece, the camera faces the neutral wire connector and the live wire connector of the workpiece.

[0029] The camera is used to photograph the air conditioner outdoor unit to determine the distance between the neutral wire and the live wire in the air conditioner outdoor unit, and control the motor to rotate according to the distance to ensure that the distance between the neutral wire probe and the live wire probe matches the distance between the neutral wire and the live wire in the air conditioner outdoor unit.

[0030] In a preferred technical solution of the present invention, a fill light is provided on the outside of the camera.

[0031] The fill light can ensure that the camera can clearly capture the air conditioner outdoor unit, thereby ensuring the accuracy of the adjustment of the distance between the neutral probe and the live probe.

[0032] The beneficial effects of the utility model are:

[0033] The grounding tool provided by the present invention includes a driving member and a grounding component, the grounding component includes a bottom plate and a top plate arranged relatively to each other, the bottom plate is provided with a grounding terminal; the top plate is connected to the driving member, and the driving member is used to drive the grounding component to move in a direction close to or away from the workpiece, and when the grounding component moves to the side of the workpiece, the grounding terminal is electrically connected to the grounding part of the workpiece. The grounding terminal in this application is grounded, specifically, it can be grounded through the grounding end of the detector, or it can be directly grounded through a wire; at the same time, the grounding terminal is set through the bottom plate, and when the driving member drives the grounding component to move to the side of the workpiece, the side of the grounding terminal away from the top plate is connected to the grounding end of the workpiece, and the end of the grounding terminal close to the top plate is grounded, thereby achieving a grounding connection to the workpiece; the present application drives the grounding component to move by the driving member, which can achieve automatic grounding connection of the workpiece, avoids the defects of manual grounding in the prior art, and improves the efficiency and accuracy of the grounding connection of the workpiece.

[0034] The present invention also provides an electrical safety detection device including the above-mentioned grounding tool, and also includes a detection tool and a detector, wherein the detection tool and the grounding tool are connected to the workpiece and the detector at the same time, and finally a detection path is formed to facilitate the detector to perform electrical safety detection on the workpiece; the grounding tool in this application can realize automatic leveling of the grounding terminal and the grounding end of the workpiece, avoiding the defects of manual grounding in the prior art, improving the efficiency and accuracy of the workpiece grounding connection, and improving the efficiency and accuracy of electrical safety detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1This is a schematic diagram of the structure of the grounding tooling in this application;

[0036] Figure 2 This is a schematic diagram of the overall structure of the grounding component in this application;

[0037] Figure 3 This is a schematic side view of the overall grounding assembly in this application;

[0038] Figure 4 This is a schematic diagram of the position of the grounding tool in the detection state;

[0039] Figure 5 This is a schematic diagram of the position of the grounding tool in the avoidance state;

[0040] Figure 6 This is a schematic diagram of the overall structure of the electrical safety detection device of this application;

[0041] Figure 7 It is a structural diagram of the detection tooling;

[0042] Figure 8 This is a partially enlarged schematic diagram of the installation bracket in the inspection tooling.

[0043] Reference numerals:

[0044] 11. Process board; 12. Air conditioner outdoor unit; 13. Transmission line; 20. Grounding tooling; 21. Cylinder mounting platform; 22. Rotating cylinder; 23. Connector; 24. Top plate; 25. Conductive plate; 26. Insulating plate; 27. Guide shaft; 28. Spring; 29. ​​Grounding terminal; 30. Linear bearing; 31. Guide support; 40. Inspection tooling; 41. Robotic arm; 42. Grounding probe; 43. Neutral probe; 44. Live probe; 45. Motor; 46. Coupling; 47. Screw nut; 48. Linear guide; 49. Connecting plate; 50. Camera; 51. Fill light; 52. Mounting bracket; 53. Connecting frame. DETAILED DESCRIPTION

[0045] The following describes preferred embodiments of the present invention in more detail with reference to the accompanying drawings. Although preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0046] The terms used in this utility model are for the purpose of describing specific embodiments only and are not intended to limit the utility model. As used in this utility model and the appended claims, the singular forms "a," "the," and "the" are intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0047] It should be understood that although the terms "first", "second", "third", etc. may be used in the present invention to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the present invention, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0048] Example 1

[0049] like Figure 1-Figure 3 As shown, a grounding tool includes a driving member and a grounding component, the grounding component includes a bottom plate and a top plate 24 arranged opposite to each other, the bottom plate is provided with a grounding terminal 29; the top plate 24 is connected to the driving member, and the driving member is used to drive the grounding component to move toward or away from the workpiece. When the grounding component moves to the side of the workpiece, the grounding terminal 29 is electrically connected to the grounding part in the workpiece.

[0050] In the present application, the grounding terminal 29 is grounded, and specifically can be grounded through the grounding end of the detector, or can be directly grounded through a wire; at the same time, the grounding terminal 29 is set through the bottom plate, and when the driving part drives the grounding component to move to the side of the workpiece, the side of the grounding terminal 29 away from the top plate 24 is connected to the grounding end of the workpiece, and the end of the grounding terminal 29 close to the top plate 24 is grounded, thereby realizing the grounding connection of the workpiece; the present application drives the grounding component to move by the driving part, which can realize automatic grounding connection of the workpiece, avoids the defects of manual grounding in the prior art, and improves the efficiency and accuracy of the grounding connection of the workpiece.

[0051] In the present application, the grounding terminal 29 is located on the side of the bottom plate away from the top plate 24 and protrudes from the bottom plate, or is flush with the bottom plate surface. Correspondingly, the grounding portion in the workpiece can be set in a recessed position in the workpiece, or is flush with the workpiece surface. In the present application, the grounding terminal 29 can specifically be a grounding bolt or other component.

[0052] Ground terminal 29 is directly grounded via a wire, ensuring that the workpiece is grounded during testing or processing to avoid electrical safety hazards. Ground terminal 29 is connected to the tester via a wire and can be used in conjunction with other terminals in the tester to perform electrical safety performance testing on the workpiece.

[0053] Example 2

[0054] like Figure 1-Figure 3 As shown, a grounding tool includes a driving member and a grounding component, the grounding component includes a bottom plate and a top plate 24 arranged opposite to each other, the bottom plate is provided with a grounding terminal 29; the top plate 24 is connected to the driving member, and the driving member is used to drive the grounding component to move toward or away from the workpiece. When the grounding component moves to the side of the workpiece, the grounding terminal 29 is electrically connected to the grounding part in the workpiece.

[0055] Furthermore, the bottom plate of the present application includes a conductive plate 25 and an insulating plate 26, wherein the insulating plate 26 is located on the side of the conductive plate 25 close to the top plate 24, and the grounding terminal 29 is connected to the conductive plate 25; when the grounding component moves to the side of the workpiece, the grounding terminal 29 is electrically connected to the grounding part in the workpiece through the conductive plate 25.

[0056] In actual operation, the conductive plate 25 can be made of copper, and the insulating plate 26 can be made of fiberglass. The conductive plate 25 is electrically connected to the grounding bolt. In this case, the conductive plate 25 can be considered an extension of the grounding terminal 29. Simply ensuring that the conductive plate 25 abuts the grounding end of the workpiece can achieve grounding of the workpiece. This application uses the conductive plate 25 as an extension of the grounding terminal 29. Compared to the grounding terminal 29, the conductive plate 25 has a larger surface area, effectively increasing the contact area of ​​the workpiece grounding, further ensuring that the workpiece is quickly and effectively grounded.

[0057] Furthermore, a guide shaft 27 is provided between the top plate 24 and the bottom plate, the guide shaft 27 is fixedly connected to the top plate 24, and the guide shaft 27 is slidably connected to the bottom plate; a spring 28 is sleeved on the outside of the guide shaft 27, and the two ends of the spring 28 are respectively in contact with the top plate 24 and the bottom plate.

[0058] When the driver drives the grounding assembly close to the workpiece, the presence of guide shaft 27 and spring 28 provides a buffering force when the base plate contacts the workpiece, preventing damage to the workpiece or the grounding assembly due to a hard collision between the grounding assembly and the workpiece. Specifically, when the driver drives the grounding assembly close to the workpiece and the base plate abuts the workpiece, due to the sliding connection between the base plate and guide shaft 27, spring 28 is slightly compressed, achieving buffered contact between the base plate and the workpiece. At the same time, spring 28 also exerts pressure on the base plate, ensuring that the conductive plate 25 or grounding terminal 29 is in full contact with the grounded portion of the workpiece, ensuring a reliable electrical circuit is formed between the workpiece and the grounding terminal 29.

[0059] like Figure 2 and Figure 3 As shown, the top plate 24 and the top plate 24 are plates arranged parallel to each other, and a guide support 31 is provided in the bottom plate, and a linear bearing 30 is provided in the top plate 24. The two ends of the guide shaft 27 are respectively connected to the guide support 31 and the linear bearing 30. Furthermore, in the present application, there can be four guide shafts 27, which are respectively arranged at the four corners of the edge of the top plate 24 and the bottom plate. Through the mutual cooperation and joint action of the four guide shafts 27, buffered contact can be ensured between the bottom plate and the workpiece from various positions. In the present application, there can be two grounding terminals 29, which are respectively arranged at the left and right sides of the bottom plate. The grounding end in the workpiece can specifically be a valve, etc.

[0060] In actual operation, such as 4 and Figure 5 As shown, the workpiece is located on the transmission line 13, and the driving member is located on the side of the transmission line 13; the driving member includes a rotating cylinder 22 and a connecting member 23, and the output end of the rotating cylinder 22 is connected to the top plate 24 through the connecting member 23; the rotating cylinder 22 drives the grounding component to rotate above the transmission line 13 or to the side of the transmission line 13.

[0061] like Figure 4 As shown, the rotary cylinder 22 is fixed to the side of the transmission line 13 through the cylinder mounting platform 21; when the grounding component needs to abut against the workpiece on the transmission line 13, the rotary cylinder 22 drives the connector 23 and the grounding component to rotate to the top of the transmission line 13. At this time, the connector 23 is perpendicular to the transmission direction of the transmission line 13, so that the grounding terminal 29 in the bottom plate abuts against the grounding part in the workpiece. The bottom plate is located at the end of the top plate 24 away from the connector 23. When the workpiece needs to be transmitted normally, the rotary cylinder 22 drives the connector 23 and the grounding component to rotate to the side of the transmission line 13. At this time, the connector 23 is located on the side of the transmission line 13, and the connector 23 is parallel to the transmission direction, ensuring that there is no obstacle in front of the workpiece and achieving smooth passage.

[0062] In the present application, the rotary cylinder 22 and the transmission line 13 cooperate with each other to achieve grounding of the workpiece during the workpiece transmission process. Specifically, the workpieces on the transmission line 13 are sequentially subjected to electrical safety inspections. The rotary cylinder 22 is located exactly at the inspection station. When the workpiece is transmitted to the inspection station, the rotary cylinder 22 drives the grounding component to abut against the workpiece to achieve electrical safety performance testing of the workpiece. After the workpiece inspection is completed, the rotary cylinder 22 drives the grounding component to avoid the workpiece to ensure normal transmission of the workpiece. The structure and setting of the present application can improve the efficiency of workpiece inspection and transmission.

[0063] Example 3

[0064] like Figure 6-Figure 8As shown, an electrical safety detection device provided in the present application includes a grounding tool as described in Example 2.

[0065] Specifically, the electrical safety testing device includes a grounding fixture 20, a testing fixture 40, and a tester (not shown). The testing fixture 40 includes a grounding probe 42, a neutral probe 43, and a live probe 44. The neutral probe 43 and the live probe 44 are connected to the first and second terminals of the tester. The grounding probe 42 is connected to the first ground terminal of the tester, and the grounding fixture 20 is connected to the second ground terminal of the tester. The neutral probe 43 and the live probe 44 are simultaneously connected to the neutral and live wires in the workpiece.

[0066] By connecting the detection fixture 40 , the grounding fixture 20 with the workpiece and the detector respectively, an electrical circuit is formed among the detection fixture 40 , the detector, the grounding fixture 20 and the workpiece.

[0067] This embodiment is illustrated by taking the workpiece as the air-conditioning outdoor unit 12 as an example; the neutral wire in the air-conditioning outdoor unit 12 is connected to the first terminal of the detector through the neutral wire probe 43, the live wire in the air-conditioning outdoor unit 12 is connected to the second terminal of the detector through the live wire probe 44, and the grounding terminal 29 in the air-conditioning outdoor unit 12 is simultaneously connected to the second grounding terminal of the detector through the grounding tool 20, and is connected to the first grounding terminal of the detector through the grounding probe 42.

[0068] A first electrical circuit is formed between the grounding part in the air-conditioning outdoor unit 12, the grounding tool 20, the second grounding terminal of the detector, the internal circuit of the detector, and the first grounding terminal of the detector. The detector can detect the grounding resistance of the air-conditioning outdoor unit 12 through the first electrical circuit.

[0069] A second electrical circuit is formed between the neutral wire in the air-conditioning outdoor unit 12, the neutral wire probe 43, the first terminal of the detector, the internal circuit of the detector, the second terminal of the detector, the live wire probe 44, and the live wire in the air-conditioning outdoor unit 12. The detector can detect the insulation resistance, leakage current and electrical strength of the air-conditioning outdoor unit 12 through the second electrical circuit.

[0070] To accommodate different models of air conditioner outdoor units 12, the present application configures the neutral and live probes in the detection tool 40 to have adjustable spacing. Specifically, the detection tool 40 also includes a motor 45, a coupling 46, and a lead screw nut 47 mounted within a mounting bracket 52. The output end of the motor 45 is connected to the coupling 46; the lead screw nut 47 is located within the coupling 46; and the neutral probe 43 or the live probe 44 is fixedly connected to the lead screw nut 47.

[0071] Specifically, a connecting bracket 53 is provided in the lead screw nut 47, and the lead screw nut 47 is connected to the neutral probe 43 or the live probe 44 via the connecting bracket 53. In order to achieve adjustable spacing between the neutral probe 43 and the live probe 44, the present application can ensure that one probe is fixed in position while the other probe can move toward or away from the fixed probe, thereby achieving adjustment of the spacing between the neutral probe 43 and the live probe 44 through a relatively simple structure.

[0072] like Figure 7 and Figure 8 As shown, the neutral probe 43 and the live probe 44 are arranged side by side in front of the mounting bracket 52 and protrude from the mounting bracket 52. The live probe 44 is kept in a fixed position, that is, the live probe 44 is fixed to the mounting bracket 52 via the connecting bracket 53. The neutral probe 43 is fixed to the screw nut 47 via the connecting bracket 53. The screw nut 47 is located in the coupling 46, and the coupling 46 is connected to the output end of the motor 45. When the motor 45 rotates, the coupling 46 rotates. The rotation of the coupling 46 drives the position of the screw nut 47 to change, thereby changing the distance between the neutral probe 43 and the live probe 44 to adapt to different models of air conditioner outdoor units 12.

[0073] In order to ensure that the zero line probe 43 can slide smoothly with the lead screw nut 47, the present application slides the connecting frame 53 connected to the zero line probe 43 in the linear guide rail 48, and the extension direction of the linear guide rail 48 is parallel to the extension direction of the coupling 46. When the lead screw nut 47 slides in position with the coupling 46, the connecting frame 53 slides along the linear guide rail 48 at the same time, so as to ensure that the zero line probe 43, the connecting frame 53 connected to the zero line probe 43, and the lead screw nut 47 connected to the zero line probe 43 slide smoothly and steadily in the same direction.

[0074] The motor 45 in this application can be a stepper motor. By adjusting the output parameters of the stepper motor, the distance between the neutral wire probe 43 and the live wire probe 44 can be precisely adjusted to adapt to different models of air-conditioning outdoor units 12, thereby expanding the scope of application of the electrical safety detection device in this application.

[0075] Furthermore, the present application describes two grounding probes 42, which are arranged in parallel. The two grounding probes 42 are simultaneously connected to the first ground terminal of the detector. Specifically, the first ground terminal can be two or one. In actual operation, the first ground terminal in the detector can be the entire sheet metal part, and the two grounding probes 42 in the inspection tool 40 can be simultaneously connected to the sheet metal part. In the present application, the two grounding probes 42 are arranged in parallel with the neutral probe 43 and the live probe 44, and are staggered. The reason for providing two grounding probes 42 is to ensure 100% grounding of the workpiece.

[0076] As an alternative embodiment, the present application may also provide only one grounding probe 42 in the detection tool 40 .

[0077] It should be noted that the detection tooling 40 and the grounding tooling 20 in this application are both provided with a grounding terminal 29 or a grounding probe 42 connected to the grounding part of the workpiece. This is to connect the air-conditioning outdoor unit 12 in series and form a first electrical circuit with the internal circuit of the detector, so as to facilitate the detection of the grounding resistance of the air-conditioning outdoor unit 12.

[0078] In this application, the detection tool 40 is located in a robotic arm 41, which is capable of moving the detection tool 40. After the grounding tool 20 contacts the workpiece, the robotic arm 41 moves the detection tool 40 closer to the workpiece to ensure that the neutral line probe contacts the neutral line of the air conditioner outdoor unit 12, and the live line probe contacts the live line of the air conditioner outdoor unit 12.

[0079] Furthermore, the inspection tool 40 also includes a camera 50. When the inspection tool 40 is moved to the side of the workpiece, the camera 50 is directly facing the neutral wire connector and the live wire connector of the workpiece. The side of the mounting bracket 52 away from the probe is connected to the connecting plate 49, and the camera 50 is set on the side of the connecting plate 49 away from the mounting bracket 52. The camera 50 is used to photograph the air conditioner outdoor unit 12 to determine the distance between the neutral wire and the live wire in the air conditioner outdoor unit 12, and to control the rotation of the motor 45 based on the distance to ensure that the distance between the neutral wire probe 43 and the live wire probe 44 is compatible with the distance between the neutral wire and the live wire in the air conditioner outdoor unit 12.

[0080] Furthermore, a fill light 51 is provided on the outside of the camera 50 , which can ensure that the camera 50 can clearly shoot the air conditioner outdoor unit 12 , thereby ensuring the accuracy of the distance adjustment between the neutral wire probe 43 and the live wire probe 44 .

[0081] Example 4

[0082] like Figures 1-8 As shown, the present application provides an electrical safety detection device, which includes a grounding tool 20, a detection tool 40 and a detector.

[0083] The grounding tool 20 includes a drive member and a grounding assembly. The grounding assembly includes a bottom plate and a top plate 24 arranged opposite each other. The bottom plate is provided with a grounding terminal 29. The bottom plate includes a conductive plate 25 and an insulating plate 26. The insulating plate 26 is located on the side of the conductive plate 25 near the top plate 24. The grounding terminal 29 is electrically connected to the conductive plate 25. When the grounding assembly moves to the side of the workpiece, the grounding terminal 29 is electrically connected to the grounded portion of the workpiece through the conductive plate 25. A guide shaft 27 is provided between the top plate 24 and the bottom plate. The guide shaft 27 is fixedly connected to the top plate 24 and slidably connected to the bottom plate. A spring 28 is sheathed on the outside of the guide shaft 27, and the ends of the spring 28 respectively abut against the top plate 24 and the bottom plate. The workpiece is located on the transmission line 13, and the driving member is located on the side of the transmission line 13; the driving member includes a rotating cylinder 22 and a connecting member 23, and the output end of the rotating cylinder 22 is connected to the top plate 24 through the connecting member 23; the rotating cylinder 22 drives the grounding component to rotate above the transmission line 13 or to the side of the transmission line 13.

[0084] The detection tooling 40 is located in a robotic arm 41, and the robotic arm 41 can drive the detection tooling 40 to move. After the grounding tooling 20 abuts against the workpiece, the robotic arm 41 drives the detection tooling 40 close to the workpiece to achieve abutment between the neutral line probe and the neutral line in the air-conditioning outdoor unit 12, and abutment between the live line probe and the live line in the air-conditioning outdoor unit 12. The detection tooling 40 includes a grounding probe 42, a neutral line probe 43, and a live line probe 44. The neutral line probe 43 and the live line probe 44 are connected to the first terminal and the second terminal of the detector. The grounding probe 42 is connected to the first grounding terminal of the detector, and the grounding tooling 20 is connected to the second grounding terminal of the detector. The neutral line probe 43 and the live line probe 44 are connected to the neutral line and the live line in the workpiece at the same time.

[0085] The inspection tool 40 also includes a motor 45, a coupling 46, and a lead screw nut 47 mounted in a mounting bracket 52. The output end of the motor 45 is connected to the coupling 46; the lead screw nut 47 is located within the coupling 46; and the neutral probe 43 or the live probe 44 is fixedly connected to the lead screw nut 47. A connecting plate 49 is connected to the side of the mounting bracket 52 away from the probes. A camera 50 is mounted on the side of the connecting plate 49 away from the mounting bracket 52, and a fill light 51 is located outside the camera 50.

[0086] Taking the workpiece as the air conditioner outdoor unit 12 as an example, the air conditioner outdoor unit 12 is placed on the process board 11, the process board 11 is located on the transmission line 13, and the process board 11 and the air conditioner outdoor unit 12 move along the transmission line 13 together. The detection tooling 40 and the grounding tooling 20 are respectively located on opposite sides of the transmission line 13, forming a detection position together. When the air conditioner outdoor unit 12 and the process board 11 move to the detection position, the rotating cylinder 22 drives the grounding assembly to rotate through the connector 23, so that the bottom plate in the grounding assembly contacts the valve in the air conditioner outdoor unit 12. The spring 28 in the grounding assembly plays a buffering and pressing role to ensure that the conductive plate 25 presses the valve. The valve refers to the grounding part in the air conditioner outdoor unit 12.

[0087] At the same time, robotic arm 41 moves inspection tool 40 to the connection board of air conditioner outdoor unit 12. Camera 50 photographs the connection board inside air conditioner outdoor unit 12. The control center controls motor 45 to rotate, adjusting the spacing between neutral probe 43 and live probe 44 to match the spacing between the neutral and live wires at the connection board. When inspection tool 40 abuts air conditioner outdoor unit 12, neutral probe 43 and live probe 44 simultaneously connect to the neutral and live wires at the workpiece connection board, while ground probe 42 connects to the ground wire at the connection board.

[0088] The neutral wire in the air-conditioning outdoor unit 12 is connected to the first terminal of the detector through the neutral wire probe 43, the live wire in the air-conditioning outdoor unit 12 is connected to the second terminal of the detector through the live wire probe 44, and the grounding terminal 29 in the air-conditioning outdoor unit 12 is simultaneously connected to the second grounding terminal of the detector through the grounding tool 20, and is connected to the first grounding terminal of the detector through the grounding probe 42.

[0089] A first electrical circuit is formed between the grounding part in the air-conditioning outdoor unit 12, the grounding tool 20, the second grounding terminal of the detector, the internal circuit of the detector, and the first grounding terminal of the detector. The detector can detect the grounding resistance of the air-conditioning outdoor unit 12 through the first electrical circuit.

[0090] A second electrical circuit is formed between the neutral wire in the air-conditioning outdoor unit 12, the neutral wire probe 43, the first terminal of the detector, the internal circuit of the detector, the second terminal of the detector, the live wire probe 44, and the live wire in the air-conditioning outdoor unit 12. The detector can detect the insulation resistance, leakage current and electrical strength of the air-conditioning outdoor unit 12 through the second electrical circuit.

[0091] After the inspection is completed, the robotic arm 41 drives the inspection tooling 40 away from the transmission line 13, and the rotary cylinder 22 drives the grounding assembly to rotate to the side of the transmission line 13, and the process board 11 and the air conditioner outdoor unit 12 are transferred to the next station.

[0092] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to actual proportional relationships. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures. In the description of this application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0093] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0094] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0095] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A grounding tool, characterized in that: It comprises a driving member and a grounding assembly, wherein the grounding assembly comprises a bottom plate and a top plate (24) arranged opposite to each other, and the bottom plate is provided with a grounding terminal (29); The top plate (24) is connected to a driving member, and the driving member is used to drive the grounding component to move toward or away from the workpiece. When the grounding component moves to the side of the workpiece, the grounding terminal (29) is electrically connected to the grounding part in the workpiece.

2. A grounding tool according to claim 1, characterized in that: The bottom plate comprises a conductive plate (25) and an insulating plate (26), wherein the insulating plate (26) is located on a side of the conductive plate (25) close to the top plate (24), and the grounding terminal (29) is electrically connected to the conductive plate (25); when the grounding component moves to the side of the workpiece, the grounding terminal (29) is electrically connected to the grounding portion in the workpiece through the conductive plate (25).

3. A grounding tool according to claim 2, characterized in that: A guide shaft (27) is provided between the top plate (24) and the bottom plate, the guide shaft (27) is fixedly connected to the top plate (24), and the guide shaft (27) is slidably connected to the bottom plate; a spring (28) is sleeved on the outside of the guide shaft (27), and two ends of the spring (28) are respectively in contact with the top plate (24) and the bottom plate.

4. A grounding tool according to claim 1, characterized in that: The workpiece is located on a transmission line (13), and the driving member is located on a side of the transmission line (13); The driving member comprises a rotating cylinder (22) and a connecting member (23), wherein the output end of the rotating cylinder (22) is connected to a top plate (24) via the connecting member (23); the rotating cylinder (22) drives the grounding component to rotate above the transmission line (13) or to the side of the transmission line (13).

5. An electrical safety detection device, characterized in that: The invention comprises a grounding tool as claimed in any one of claims 1 to 4, and further comprises a detection tool (40) and a detector, wherein an electrical circuit is formed among the detection tool (40), the detector, the grounding tool (20) and the workpiece.

6. An electrical safety detection device according to claim 5, characterized in that: The detection tool (40) includes a grounding probe (42), a neutral line probe (43) and a live line probe (44), wherein the neutral line probe (43) and the live line probe (44) are connected to a first terminal and a second terminal of the detector, the grounding probe (42) is connected to a first grounding terminal of the detector, and the grounding terminal (29) is connected to a second grounding terminal of the detector, and the neutral line probe (43) and the live line probe (44) are simultaneously connected to the neutral line and the live line in the workpiece.

7. An electrical safety detection device according to claim 6, characterized in that: The detection tool (40) further comprises a motor (45), a coupling (46) and a lead screw nut (47), wherein the output end of the motor (45) is connected to the coupling (46); the lead screw nut (47) is located in the coupling (46); and the zero line probe (43) or the live line probe (44) is fixedly connected to the lead screw nut (47).

8. An electrical safety detection device according to claim 6, characterized in that: There are two grounding probes (42), and the two grounding probes (42) are arranged in parallel.

9. An electrical safety detection device according to claim 6, characterized in that: The detection tool (40) is located in a mechanical arm (41), and the mechanical arm (41) is capable of driving the detection tool (40) to move; The inspection tool (40) further comprises a camera (50). When the inspection tool (40) moves to the side of the workpiece, the camera (50) faces the neutral wire connector and the live wire connector of the workpiece.

10. An electrical safety detection device according to claim 9, characterized in that: A fill light (51) is provided on the outside of the camera (50).

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