A pressure-resistant detection device

Abstract

The present invention discloses a voltage withstand detection device, which includes a frame, a positioning mechanism, a negative ion mechanism, a driving mechanism and a voltage withstand tester. The positioning mechanism is arranged on the frame and is used for positioning the workpiece; the negative ion mechanism is arranged above the positioning mechanism and is used for generating negative ion wind; the driving mechanism is connected to the negative ion mechanism and is used for driving the negative ion mechanism to move along the workpiece; the voltage withstand tester respectively applies positive voltage and negative voltage to the workpiece and the negative ion mechanism, and monitors the current between the workpiece and the negative ion mechanism. The voltage withstand detection device provided by the present invention can position the workpiece by setting the positioning mechanism, can generate negative ion wind to cover the workpiece to be detected by setting the negative ion mechanism, can drive the negative ion mechanism to move along the workpiece by setting the driving mechanism, and the negative ion wind can be in full contact with the insulating layer of the workpiece, avoiding missed detection areas.

Description

Technical Field

[0001] The present invention relates to the technical field of withstand voltage testing, and particularly relates to a withstand voltage detection device. Background Art

[0002] Generally, a non-metallic protective layer is coated outside the existing copper busbar to achieve the purpose of insulation. After the copper busbar is wrapped with the protective layer, copper leakage detection needs to be carried out to determine that there is no copper leakage at the protective layer. The existing detection method is to wind a copper strip outside the protective layer of the copper busbar; the positive electrode of the withstand voltage tester is electrically connected to a conductive end of the copper busbar through a wire, and the negative electrode of the withstand voltage tester is electrically connected to the copper busbar through a wire. The magnitude of the current is detected by applying a voltage through the withstand voltage tester. However, winding the copper strip is time-consuming and laborious, and for a special-shaped copper busbar, it is easy to have a situation where the copper strip cannot completely cover the protective layer, resulting in missed detection of the insulating layer. Summary of the Invention

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the deficiencies in the prior art, so as to provide a withstand voltage detection device.

[0004] To solve the above technical problems, the technical solution of the present invention is as follows:

[0005] A withstand voltage detection device includes:

[0006] A frame;

[0007] A positioning mechanism, which is arranged on the frame and is used for positioning the workpiece;

[0008] A negative ion mechanism, which is arranged above the positioning mechanism and is used for generating negative ion wind;

[0009] A driving mechanism, which is connected to the negative ion mechanism and is used for driving the negative ion mechanism to move along the workpiece;

[0010] A withstand voltage tester, which respectively inputs positive voltage and negative voltage to the workpiece and the negative ion mechanism, and monitors the current between the workpiece and the negative ion mechanism.

[0011] Further, the positioning mechanism includes:

[0012] A positioning plate, which is arranged on the frame, and the upper surface of the positioning plate is provided with a positioning groove, and positioning pins are arranged in the positioning groove;

[0013] A limit pin, which is arranged on the upper surface of the positioning plate and is in contact with the side wall of the workpiece.

[0014] Further, the outer peripheral part of the workpiece is arranged above the positioning plate outside the positioning groove.

[0015] Furthermore, the positioning mechanism further includes:

[0016] A foolproof block, which is arranged on the upper surface of the positioning plate, and one end of the foolproof block close to the center of the positioning plate extends into the groove on the outer side wall of the workpiece.

[0017] Furthermore, it further includes:

[0018] A sensor, a sensor mounting plate is arranged on the upper surface of the positioning plate, and the sensor is arranged on the sensor mounting plate.

[0019] Furthermore, the driving mechanism includes:

[0020] A manipulator, which is arranged on one side of the positioning mechanism;

[0021] A connecting flange, the upper end of the connecting flange is connected to the moving end of the manipulator;

[0022] A fixing plate, the upper surface of the fixing plate is connected to the lower end of the connecting flange, and the fixing plate is used to mount the negative ion mechanism.

[0023] Furthermore, the negative ion mechanism includes:

[0024] A wire, the lower end of the wire vertically penetrates through the fixing plate, and the wire is connected to the negative electrode of the withstand voltage tester;

[0025] A plasma spray gun, which is connected to one side of the fixing plate.

[0026] Furthermore, the wire and the plasma spray gun are arranged vertically and parallel to each other.

[0027] Furthermore, the manipulator is arranged on the frame through a mounting seat.

[0028] Furthermore, the manipulator adopts a four-axis manipulator.

[0029] The technical solution of the present invention has the following advantages:

[0030] 1. The withstand voltage detection device provided by the present invention can position the workpiece by setting the positioning mechanism, can generate negative ion wind to cover the workpiece to be detected by setting the negative ion mechanism, and can drive the negative ion mechanism to move along the workpiece by setting the driving mechanism. The negative ion wind can be in full contact with the insulating layer of the workpiece, eliminating the process of winding copper strips, with high automation, saving time and effort, and avoiding missed detections.

[0031] 2. The voltage withstand detection device provided by the present invention can realize the free movement of the negative ion mechanism by setting a manipulator, and can realize the installation of the negative ion mechanism by setting a connecting flange and a fixing plate.

[0032] 3. The voltage withstand detection device provided by the present invention is connected to the negative pole of the voltage withstand tester by setting a wire, and a negative ion wind can be generated in cooperation with the wire by setting a plasma spray gun.

[0033] 4. The voltage withstand detection device provided by the present invention can realize the placement of the workpiece by setting a positioning groove and a positioning pin, and can limit the horizontal movement of the workpiece by setting a limit pin.

[0034] 5. The voltage withstand detection device provided by the present invention can facilitate the accurate docking of the positioning pin and the workpiece by setting one end of the anti-fooling block close to the center of the positioning plate to extend into the groove on the outer side wall of the workpiece, and can improve the speed of assembling the workpiece on the positioning mechanism, thereby improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0036] Figure 1 It is a schematic structural diagram of the voltage withstand detection device provided by an embodiment of the present invention;

[0037] Figure 2 It is a schematic structural diagram of the negative ion mechanism and the driving mechanism provided by an embodiment of the present invention;

[0038] Figure 3 It is a schematic structural diagram of the connecting flange provided by an embodiment of the present invention;

[0039] Figure 4 It is a schematic structural diagram of the special-shaped copper bar provided by an embodiment of the present invention Figure 1 ;

[0040] Figure 5 It is a schematic structural diagram of the special-shaped copper bar provided by an embodiment of the present invention Figure 2 ;

[0041] Figure 6 It is a schematic structural diagram of the positioning mechanism installed with the special-shaped copper bar provided by an embodiment of the present invention;

[0042] Figure 7 It is a top view of the positioning mechanism installed with the special-shaped copper bar provided by an embodiment of the present invention;

[0043] Figure 8 For Figure 7 The partial enlarged view at position A in the figure;

[0044] Figure 9 It is a schematic structural diagram of the positioning mechanism provided by an embodiment of the present invention.

[0045] Explanation of reference numerals: 1, frame; 2, positioning mechanism; 3, negative ion mechanism; 4, driving mechanism; 5, withstand voltage tester; 6, workpiece; 7, sensor; 21, positioning plate; 22, limit pin; 23, anti-fooling block; 211, positioning groove; 212, positioning nail; 213, notch; 214, gap; 215, sensor mounting plate; 31, wire; 32, plasma spray gun; 41, manipulator; 42, connecting flange; 43, fixing plate; 44, mounting seat; 61, main body; 62, outer peripheral part; 611, groove; 612, blind hole; 613, first through hole; 614, first protrusion; 615, second protrusion; 616, third protrusion; 621, second through hole. Detailed implementation manners

[0046] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0047] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0048] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0049] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0050] This embodiment provides a withstand voltage detection device. As Figures 1-9 shown, it includes a frame 1, a positioning mechanism 2, a negative ion mechanism 3, a driving mechanism 4, and a withstand voltage tester 5. The frame 1 provides support for other mechanisms. The frame 1 is a frame structure formed by assembling sheet metal parts and steel frames, which has the advantages of high support stability and low manufacturing cost. To improve the structural strength of the frame 1, structures such as reinforcing ribs can be provided on the frame structure. The positioning mechanism 2 is arranged on the frame 1, and the positioning mechanism 2 is used to position the workpiece 6; the negative ion mechanism 3 is arranged above the positioning mechanism 2, and the negative ion mechanism 3 is used to generate negative ion wind; the driving mechanism 4 is connected to the negative ion mechanism 3, and the driving mechanism 4 is used to drive the negative ion mechanism 3 to move along the workpiece 6; the withstand voltage tester 5 applies positive voltage and negative voltage to the workpiece 6 and the negative ion mechanism 3 respectively, and monitors the current between the workpiece 6 and the negative ion mechanism 3.

[0051] By setting the positioning mechanism 2 in this embodiment, the workpiece 6 can be positioned. By setting the negative ion mechanism 3, negative ion wind can be generated to cover the workpiece 6 to be detected. By setting the driving mechanism 4, the negative ion mechanism 3 can be driven to move along the workpiece 6. The negative ion wind can be in full contact with the insulating layer of the workpiece 6, avoiding missed detection areas and improving the accuracy of detecting copper leakage.

[0052] Further, the driving mechanism 4 includes a manipulator 41, a connecting flange 42, and a fixing plate 43. The manipulator 41 is arranged on one side of the positioning mechanism 2; the upper end of the connecting flange 42 is connected to the moving end of the manipulator 41; the upper surface of the fixing plate 43 is connected to the lower end of the connecting flange 42, and the fixing plate 43 is used to install the negative ion mechanism 3.

[0053] By setting the manipulator 41 in this embodiment, the free movement of the negative ion mechanism 3 can be realized, and by setting the connecting flange 42 and the fixing plate 43, the installation of the negative ion mechanism 3 can be realized.

[0054] Optionally, the manipulator 41 can adopt a four-axis manipulator. For example, in this embodiment, a YK600XG2003L-RCX3404NNS4 robot is adopted. The four-axis manipulator has four joints and can realize x-axis movement, y-axis movement, z-axis movement, and z-axis rotation at the end in a rectangular coordinate system, and can move to any position in space. The manipulator 41 can also be a three-degree-of-freedom or six-degree-of-freedom manipulator, etc. The manipulator 41 is arranged on the frame 1 through a mounting seat 44.

[0055] Optionally, the connecting flange 42 is a standard connecting flange component that matches the manipulator model. The upper end of the connecting flange 42 is sleeved outside the moving end of the manipulator 41, and the connecting flange 42 is connected and fixed to the moving end of the manipulator 41 by bolts and nuts.

[0056] Further, the negative ion mechanism 3 includes a wire 31 and a plasma spray gun 32. The lower end of the wire 31 vertically penetrates through the fixing plate 43, and the wire 31 is connected to the negative electrode of the withstand voltage tester 5; the plasma spray gun 32 is connected to one side of the fixing plate 43. In this embodiment, by setting the wire 31 to be connected to the negative electrode of the withstand voltage tester 5, and by setting the plasma spray gun 32, negative ion wind can be generated in cooperation with the wire 31. The plasma spray gun 32 is a device that continuously sprays a low-temperature plasma gas flow. Optionally, the plasma spray gun 32 in this embodiment is selected as a direct drive jet type plasma rotary spray gun with the model HRS-SRPJ.

[0057] Optionally, the wire 31 and the plasma spray gun 32 are arranged vertically and parallel to each other. This is conducive to generating negative ion wind. The outer insulating layer of the lower end of the wire 31 is removed.

[0058] Further, the positioning mechanism 2 includes a positioning plate 21 and a limit pin 22. Among them, the positioning plate 21 is arranged on the frame 1, and a positioning groove 211 is provided on the upper surface of the positioning plate 21, and a positioning pin 212 is provided in the positioning groove 211. The shape of the positioning groove 211 is adapted to the shape of the main body 61 of the workpiece 6. For example, if the workpiece 6 is circular, the positioning groove 211 is circular; if the workpiece 6 is strip-shaped, the positioning groove 211 is strip-shaped; if the workpiece 6 is elliptical, the positioning groove 211 is elliptical. The limit pin 22 is arranged on the upper surface of the positioning plate 21, and the limit pin 22 contacts the side wall of the workpiece 6. In this embodiment, by providing the positioning groove 211 and the positioning pin 212, the placement of the workpiece 6 can be realized, and by providing the limit pin 22, the horizontal movement of the workpiece 6 can be restricted.

[0059] Optionally, the workpiece 6 in this embodiment is a special-shaped copper bar. The special-shaped copper bar includes an annular main body 61 and an outer peripheral part 62. The outer peripheral parts 62 are circumferentially and evenly distributed on the outer side wall of the main body 61, and a groove 611 is provided on the outer side wall between two adjacent outer peripheral parts 62; a blind hole 612 is provided on the lower surface of the main body 61; the lower surface of the main body 61 is circumferentially and evenly distributed with first through holes 613 and a convex component; each convex component includes a first convex 614, a second convex 615 and a third convex 616, and there is a space between the first convex 614, the second convex 615 and the third convex 616. A vertical second through hole 621 is also provided on the outer peripheral part 62. For this special-shaped copper bar, the positioning pin 212 can be connected to the blind hole 612 on the lower surface of the main body 61 or to the first through hole 613 on the lower surface of the main body 61. Since the sizes of the blind hole 612 and the first through hole 613 are small, the installation accuracy requirements for the positioning pin 212 are relatively high; for easy processing and installation, the positioning pin 212 in this embodiment is limited between the first convex 614, the second convex 615 and the third convex 616. The diameter of the positioning pin 212 is smaller than the space between the first convex 614, the second convex 615 and the third convex 616, which is convenient for aligning the positions between the first convex 614, the second convex 615 and the third convex 616 with the positioning pin 212 and facilitating the placement of the special-shaped copper bar on the positioning pin 212. The number of positioning pins 212 in this application can be any number. In this embodiment, the number of positioning pins 212 is 6.

[0060] Optionally, the positioning plate 21 is integrally rectangular, and notches 213 are provided at its left and right ends. The special-shaped copper bar is partially located above the notches 213, which is conducive to the picking and placing of the special-shaped copper bar. In this embodiment, the annular positioning groove 211 is arc-shaped adapted to the main body 61 of the special-shaped copper bar. For this special-shaped copper bar, the limiting pin 22 can be provided corresponding to the second through hole 621 of the outer peripheral part 62 or in contact with the outer side wall of the outer peripheral part 62 to achieve the horizontal limitation of the special-shaped copper bar. In this embodiment, the limiting pin 22 is located on the side of the positioning groove 211 close to the center of the positioning plate 21, and the limiting pin 22 is in contact with the inner side wall of the workpiece 6. The number of limiting pins 22 in this application can be any number. In this embodiment, 3 limiting pins 22 are adopted.

[0061] Further, the outer peripheral part 62 of the workpiece 6 is located above the positioning plate 21 outside the positioning groove 211. The lower surface of the outer peripheral part 62 may or may not be in contact with the upper surface of the positioning plate 21. Optionally, there are gaps 214 between the inner and outer side walls of the special-shaped copper bar and the two side walls of the positioning groove 211, which is convenient for the negative ion wind generated by the negative ion mechanism 3 to enter below the special-shaped copper bar from the gaps 214, making the copper leakage detection more comprehensive.

[0062] Further, the positioning mechanism 2 further includes a foolproof block 23. The foolproof block 23 is disposed on the upper surface of the positioning plate 21, and one end of the foolproof block 23 close to the center of the positioning plate 21 extends into the groove 611 on the outer side wall of the workpiece 6. In this embodiment, by setting one end of the foolproof block 23 close to the center of the positioning plate 21 to extend into the groove 611 on the outer side wall of the workpiece 6, it is convenient for the positioning pin 212 to accurately dock with the workpiece 6, and the speed of assembling the workpiece 6 on the positioning mechanism 2 can be increased, thereby improving the detection efficiency. The two side walls of the foolproof block 23 are attached to the two side walls of the groove, which can limit the rotation of the workpiece. The number of the foolproof blocks 23 in this application can be any number. In this embodiment, the number of the foolproof blocks 23 is 1.

[0063] Further, the withstand voltage detection device further includes a sensor 7. A sensor mounting plate 215 is disposed on the upper surface of the positioning plate 21, and the sensor 7 is disposed on the sensor mounting plate 215. In this embodiment, the sensor mounting plate 215 is disposed on one side of the limit pin 22 close to the center of the positioning plate 21. The sensor 7 is an optoelectronic sensor. The number of sensors can be any number. In this embodiment, the number of sensors is 2; the sensor 7 is used to detect whether a special-shaped copper bar is placed on the positioning plate and whether the special-shaped copper bar is placed in place. If both sensors detect that there is material, it means there is material and the special-shaped copper bar is placed in place. Optionally, the positioning plate and the sensor mounting plate can be made of aluminum; the foolproof block and the limit pin can be made of black POM (polyoxymethylene). This application does not specifically limit the materials of each component.

[0064] The working process of this embodiment: Place the workpiece 6 on the positioning groove of the positioning plate 21, and use the limit pin and the foolproof block to complete the positioning of the workpiece; the withstand voltage tester 5 applies a positive voltage to one conductive end of the workpiece 6 and a negative voltage to the wire 31; the wire 31 and the plasma spray gun 32 are fixed on the four-axis manipulator 41, and the plasma spray gun 32 generates a negative ion wind to cover the workpiece 6. The four-axis manipulator 41 drives the wire 31 and the plasma spray gun 32 to move along the workpiece 6, thereby completing the detection of the entire workpiece 6; the withstand voltage tester 5 monitors the current between the wire 31 and the workpiece 6. If the current value is greater than the set minimum value, it is determined that the workpiece 6 has exposed copper, otherwise there is no exposed copper.

[0065] Obviously, the above embodiments are only examples clearly described and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A voltage withstand testing device, characterized in that, it includes: a frame (1); a positioning mechanism (2), the positioning mechanism (2) is arranged on the frame (1), and the positioning mechanism (2) is used for positioning a workpiece (6); a negative ion mechanism (3), the negative ion mechanism (3) is arranged above the positioning mechanism (2), and the negative ion mechanism (3) is used for generating negative ion wind; a driving mechanism (4), the driving mechanism (4) is connected to the negative ion mechanism (3), and the driving mechanism (4) is used for driving the negative ion mechanism (3) to move along the workpiece (6); a voltage withstand tester (5), the voltage withstand tester (5) respectively inputs positive voltage and negative voltage to the workpiece (6) and the negative ion mechanism (3), and monitors the current between the workpiece (6) and the negative ion mechanism (3).

2. The voltage withstand testing device according to claim 1, characterized in that, the positioning mechanism (2) includes: a positioning plate (21), the positioning plate (21) is arranged on the frame (1), a positioning groove (211) is arranged on the upper surface of the positioning plate (21), and a positioning pin (212) is arranged in the positioning groove (211); a limit pin (22), the limit pin (22) is arranged on the upper surface of the positioning plate (21), and the limit pin (22) contacts the side wall of the workpiece (6).

3. The voltage withstand testing device according to claim 2, characterized in that, the outer peripheral part (62) of the workpiece (6) is arranged above the positioning plate (21) outside the positioning groove (211).

4. The voltage withstand testing device according to claim 3, characterized in that, the positioning mechanism (2) further includes: a foolproof block (23), the foolproof block (23) is arranged on the upper surface of the positioning plate (21), and one end of the foolproof block (23) close to the center of the positioning plate (21) extends into a groove (611) on the outer side wall of the workpiece (6).

5. The voltage withstand testing device according to any one of claims 3-4, characterized in that, it further includes: a sensor (7), a sensor mounting plate (215) is arranged on the upper surface of the positioning plate (21), and the sensor (7) is arranged on the sensor mounting plate (215).

6. The voltage withstand testing device according to claim 1, characterized in that, the driving mechanism (4) includes: a manipulator (41), the manipulator (41) is arranged on one side of the positioning mechanism (2); a connecting flange (42), the upper end of the connecting flange (42) is connected to the moving end of the manipulator (41); a fixing plate (43), the upper surface of the fixing plate (43) is connected to the lower end of the connecting flange (42), and the fixing plate (43) is used for mounting the negative ion mechanism (3).

7. The voltage withstand testing device according to claim 6, characterized in that, the negative ion mechanism (3) includes: a wire (31), the lower end of the wire (31) vertically passes through the fixing plate (43), and the wire (31) is connected to the negative electrode of the voltage withstand tester (5); The plasma spray gun (32), and the plasma spray gun (32) is connected to one side of the fixed plate (43).

8. The pressure resistance detection device according to claim 7, characterized in that: The wire (31) is arranged vertically and parallel to the plasma spray gun (32).

9. The pressure resistance detection device according to claim 6 or 7, characterized in that: The manipulator (41) is arranged on the frame (1) through the mounting seat (44).

10. The pressure resistance detection device according to claim 6, characterized in that: The manipulator (41) is a four-axis manipulator (41).

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