Test fixtures and systems

Abstract

The application provides a test tool and system, and relates to an X-ray test tool. The test tool comprises a base, a first support and two second supports arranged on the base. The first support and the two second supports are arranged at intervals along a first direction. The first support is provided with a support position. The two second supports are respectively located on the two sides of the first support. The two second supports are close to or away from each other along the first direction. Each second support is provided with a support groove. The support groove is arranged towards the first support. The two support grooves and the support position jointly define a support space. The application can ensure the upright state of a workpiece to be tested, and improve the detection efficiency and accuracy.

Description

Technical Field

[0001] This application relates to the field of X-ray testing fixtures, and more specifically, to a testing fixture and system. Background Technology

[0002] Epoxy resin insulators are widely used in power equipment, electronic components, and other fields due to their excellent electrical properties, mechanical strength, and chemical corrosion resistance. In high-voltage electrical equipment, epoxy insulators play a crucial role in insulation and support, and their internal quality directly affects the safe operation of the equipment.

[0003] Currently, common methods for detecting internal defects in epoxy insulation components include non-destructive testing techniques such as X-ray inspection, ultrasonic testing, and infrared thermography. These testing methods typically require placing the insulation component on specific testing equipment or platforms. For example, X-ray inspection requires placing the sample on a stage inside the testing chamber, while ultrasonic testing requires the probe to maintain stable contact with the sample surface.

[0004] However, in actual operation, due to the smooth surface and uniform density of epoxy insulation components, it is difficult to maintain a stable upright state through its own friction during testing. Especially during automated testing, the insulation components are prone to tilting or even falling over on conveyor belts or rotating platforms, causing the testing probe to fail to accurately align with the intended position, seriously affecting testing efficiency and accuracy. Utility Model Content

[0005] The purpose of this application is to provide a testing fixture and system that can ensure the workpiece under test is in an upright state, thereby improving testing efficiency and accuracy.

[0006] In a first aspect, this utility model provides a testing fixture, which includes a base and a first support member and two second support members mounted on the base. The first support member and the two second support members are arranged at intervals along a first direction, and the first support member is provided with a support position. The two second support members are respectively located on both sides of the first support member. The two second support members are close to or far from each other along the first direction. Each second support member is provided with a support groove, and the support groove is arranged facing the first support member. The two support grooves and the support position together define a support space.

[0007] In an optional embodiment, the test fixture further includes a first drive assembly, the drive end of which is respectively connected to two second supports to drive each second support relative to the base in a first direction.

[0008] In an optional embodiment, the first drive assembly includes a motor, a first pulley, an operating handwheel, a second pulley, a belt, and a lead screw drive mechanism. The first pulley is mounted on the output end of the motor, the second pulley is mounted on the output end of the operating handwheel, the belt is respectively sleeved on the first pulley and the second pulley, the input end of the lead screw drive mechanism is connected to the second pulley, and the output end of the lead screw drive mechanism is connected to the two second support members.

[0009] In an optional embodiment, the second support member includes a body portion and a movable portion, the body portion and the movable portion together defining a support groove, the body portion being drively connected to the output end of the lead screw transmission mechanism, and the movable portion moving relative to the body portion along a second direction, the second direction being perpendicular to the first direction.

[0010] In an optional embodiment, the body portion is Z-shaped and includes a first body portion, a second body portion, and a third body portion connected to each other. The movable portion includes a first movable portion, a second movable portion, and a third movable portion connected to each other. The first movable portion is slidably connected to the second body portion, the second movable portion passes through the second movable portion, the third movable portion and the third body portion respectively form the groove wall of the support groove, and the second body portion forms the groove bottom of the support groove.

[0011] In an alternative embodiment, the groove walls of the support recess are made of wood.

[0012] In an optional embodiment, the test fixture further includes a second drive assembly, the drive end of which is connected to the two moving parts in a transmission manner.

[0013] In an optional embodiment, the test fixture further includes a third support member, which is mounted on the base and is spaced apart from the first support member along a second direction.

[0014] In an optional embodiment, the test fixture further includes a third drive assembly, the drive end of which is connected to the third support member in a transmission connection, so that the third support member moves relative to the base in the second direction.

[0015] Secondly, this utility model provides a testing system, which includes an X-ray testing device and the testing fixture described in the foregoing embodiments, wherein the testing fixture is located within the testing space of the X-ray testing device.

[0016] Compared to existing technologies, the beneficial effects of this application are: This application uses the support position of the base as the placement position of the workpiece to be tested, and then the two support grooves cooperate with the support position to define the support space. Placing the workpiece to be tested in the support space can ensure the upright state of the workpiece to be tested, thereby improving the testing efficiency and accuracy.

[0017] Furthermore, the two second supports of this application can move closer or further apart from each other, making this application applicable to workpieces of different specifications, thus expanding the scope of application and providing good flexibility. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 The following are schematic diagrams illustrating the installation of the workpiece under test and the test fixture in some embodiments; Figure 2 A three-dimensional structural schematic diagram of the tooling under test is shown in some embodiments; Figure 3 It shows Figure 1 Enlarged view of section A in the middle; Figure 4 A three-dimensional structural schematic diagram of the second support member in some embodiments is shown; Figure 5 A schematic diagram of the planar structure of the second support member is shown in some embodiments.

[0020] Explanation of key component symbols: 10-Test fixture; 100-Base; 110-First support; 120-Second support; 121-Main body; 1211-First main body section; 1212-Second main body section; 1213-Third main body section; 122-Moving part; 1221-First moving section; 1222-Second moving section; 1223-Third moving section; 123-Support groove; 130-First drive assembly; 131-Motor; 132-First pulley; 133-Operating handwheel; 134-Second pulley; 135-Screw drive mechanism; 140-Second drive assembly; 150-Third support; 160-Third drive assembly; 170-Guide rail; 20-Workpiece to be tested. Detailed Implementation

[0021] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0022] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0024] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0025] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0026] Example 1 Please see Figure 1This embodiment is applicable to the detection of internal defects in the workpiece 20 to be tested. Taking epoxy resin insulation as an example, the internal defects here include, but are not limited to, cracks, pores, etc. Since epoxy resin insulation has two different shapes, namely basin-shaped and flat-shaped.

[0027] Each type of epoxy resin insulation component is also available in different sizes. Epoxy resin insulation components of different sizes are designed with different diameters and thicknesses, and the basin-shaped epoxy resin insulation component also involves depth. Therefore, this embodiment is provided to maintain the upright state of the epoxy resin insulation component.

[0028] This embodiment uses X-ray inspection. Due to the requirements of X-ray inspection, the presence of metal objects on the workpiece 20 to be tested should be avoided to prevent metal objects from interfering with the inspection results.

[0029] Please see Figure 1 and Figure 2 This embodiment provides a test fixture 10, which includes a base 100 and a first support member 110 and two second support members 120 mounted on the base 100.

[0030] The first support 110 is a V-shaped support block. The workpiece 20 to be tested is placed on the first support 110 to achieve preliminary positioning and to make the workpiece 20 to be tested stable and not shake.

[0031] The first support member 110 and the two second support members 120 are arranged at intervals along the first direction, and the first support member 110 is provided with a support position. The two second support members 120 are respectively located on both sides of the first support member 110. The two second support members 120 are close to or far away from each other along the first direction. Each second support member 120 is provided with a support groove 123. The support groove 123 is set towards the first support member 110. The two support grooves 123 and the support position together define the support space.

[0032] It is understandable that the support space is adapted to the specifications of the workpiece 20 to be tested. The workpiece 20 to be tested is placed from above the two support grooves 123 and placed downward on the first support member 110 through the support grooves 123. The first support frame serves as the load-bearing element, and the two second support members 120 play the role of keeping the workpiece 20 to be tested upright.

[0033] Therefore, when the edge of the workpiece 20 to be tested is placed in the support groove 123, the edge thickness of the workpiece 20 to be tested is matched with the groove width of the support groove 123, that is, the workpiece 20 to be tested and the support groove 123 are in clearance fit. Under the premise of ensuring that the workpiece 20 to be tested remains upright, the workpiece 20 to be tested can slide in or out of the support groove 123.

[0034] Please see Figures 1 to 3The testing fixture 10 also includes a first driving assembly 130, the driving end of which is connected to two second support members 120 respectively, so that each second support member 120 moves relative to the base 100 in a first direction. In this embodiment, the first driving assembly 130 controls the distance between the two second support members 120, thereby adapting to workpieces 20 of different diameters.

[0035] In some embodiments, the first drive assembly 130 can be either electric or manual. The first drive assembly 130 includes a motor 131, a first pulley 132, an operating handwheel 133, a second pulley 134, a belt (not shown in the figure), and a screw drive mechanism 135. The first pulley 132 is mounted on the output end of the motor 131, the second pulley 134 is mounted on the output end of the operating handwheel 133, the belt is respectively sleeved on the first pulley 132 and the second pulley 134, the input end of the screw drive mechanism 135 is connected to the second pulley 134, and the output end of the screw drive mechanism 135 is connected to the two second support members 120.

[0036] When using the electric method, start the motor 131; when using the manual method, rotate the operating handwheel 133. This selectable operating method ensures that if either starting method fails, the other can serve as a backup.

[0037] In some embodiments, the first drive assembly 130 includes only a motor 131 and a lead screw transmission mechanism 135, that is, the movement of the second support member 120 is controlled electrically.

[0038] In some embodiments, the first drive assembly 130 includes only an operating handwheel 133 and a lead screw drive mechanism 135, that is, the movement of the second support member 120 is controlled manually.

[0039] In this embodiment, a set of drive components simultaneously controls two second support members 120, achieving the effect of moving closer or further away at the same time, thereby improving the efficiency of the movement of the two second support members 120. In some other embodiments, two sets of drive components may be set to control one second support member 120 respectively, which is not limited here.

[0040] Please see Figure 1 , Figure 4 and Figure 5 The second support member 120 includes a body part 121 and a moving part 122. The body part 121 and the moving part 122 together define a support groove 123. The body part 121 is connected to the output end of the lead screw transmission mechanism 135. The moving part 122 moves relative to the body part 121 in a second direction, which is perpendicular to the first direction.

[0041] The body portion 121 is Z-shaped and includes a first body portion 1211, a second body portion 1212 and a third body portion 1213 connected to each other. One end of the second body portion 1212 is connected to the first body portion 1211 and the other end is connected to the third body portion 1213. The first body portion 1211 and the third body portion 1213 extend in opposite directions.

[0042] The movable part 122 includes a first movable portion 1221, a second movable portion 1222, and a third movable portion 1223 connected to each other. The first movable portion 1221 is slidably connected to the second body portion 1212. The second movable portion 1222 passes through the second movable portion 1222. The third movable portion 1223 and the third body portion 1213 respectively form the groove wall of the supporting groove 123. The second body portion 1212 forms the groove bottom of the supporting groove 123.

[0043] The groove wall of the support groove 123 is made of wood. While fixing the workpiece 20 to be tested, the wood material meets the requirements of X-ray detection and has no impact on the detection results, thus improving the accuracy of the workpiece 20 to be tested.

[0044] The basin-shaped workpiece 20 is available in two specifications: with and without an aluminum ring. When the workpiece 20 has an aluminum ring, the third moving portions 1223 on both sides only cover the position of the aluminum ring, reducing the impact on the perspective effect.

[0045] Please continue reading. Figure 1 and Figure 2 The testing fixture 10 also includes a second drive assembly 140, the drive end of which is connected to the two moving parts 122 via a transmission connection. In this embodiment, the second drive assembly 140 controls the movement trajectory of the two moving parts 122, thereby adjusting the width of the support groove 123 to adapt to workpieces 20 of different thicknesses.

[0046] The testing fixture 10 also includes a third support 150, which is mounted on the base 100 and spaced apart from the first support 110 along the second direction. Under the support of the two second supports 120 along the edges of the workpiece 20 to be tested, the mass distribution of the basin-shaped workpiece 20 is relatively uneven. At this time, the third support 150 provides support to the bottom of the basin-shaped workpiece 20.

[0047] The third support 150 is located within the detection range. Therefore, in this embodiment, the third support 150 can be made of wood.

[0048] This embodiment provides multi-directional support for the workpiece 20 under test, further improving the stability of the workpiece 20 under test and ensuring that the workpiece 20 under test remains upright during subsequent transportation and testing, thereby improving the accuracy of testing.

[0049] Of course, when the workpiece 20 to be tested is disc-shaped, the third support 150 may not be set. The function of the third support 150 is to provide auxiliary support, which can be flexibly changed according to the testing requirements.

[0050] The test fixture 10 also includes a third drive assembly 160, the drive end of which is connected to the third support member 150 for transmission, so that the third support member 150 moves relative to the base 100 in a second direction.

[0051] The sliding mode of the second support member 120 relative to the base 100, the sliding mode of the moving part 122 relative to the main body part 121, and the sliding mode of the third support member 150 relative to the base 100 are all guided by the guide rail 170. For example, a guide groove is provided on the second support member 120, and a guide rail 170 is provided on the base 100. The guide rail 170 is slidably disposed on the guide groove.

[0052] The third drive assembly 160, the second drive assembly 140 and the first drive assembly 130 have the same driving principle, that is, they are driven by electric and / or manual means. Therefore, the third drive assembly 160, the second drive assembly 140 and the first drive assembly 130 have the same structure, which will not be described again here.

[0053] If the third drive component 160, the second drive component 140 and the first drive component 130 are all electric, the test fixture 10 can be controlled and adjusted remotely in this embodiment, which improves the intelligence level of this embodiment.

[0054] Based on the above, this embodiment further explains the usage principle of the test fixture 10 as follows: S100. Based on the diameter of the workpiece 20 to be measured, start the first drive assembly 130 and adjust the distance between the two second support members 120.

[0055] S200. Based on the thickness of the workpiece 20 to be measured, start the second drive assembly 140 and adjust the groove width of the support groove 123.

[0056] S300. The workpiece 20 to be tested is placed downward from above the test fixture 10, and the edge of the workpiece 20 to be tested slides in the support groove 123 until the workpiece 20 to be tested is placed on the first support member 110.

[0057] S400. Start the third drive component 160 and adjust the distance between the third support 150 and the workpiece 20 to be tested so that the workpiece 20 to be tested remains upright.

[0058] This application uses the support position of the base 100 as the placement position of the workpiece 20 to be tested. Then, through the cooperation of the two support grooves 123 with the support position, the support space is defined. The workpiece 20 to be tested is placed in the support space, which can ensure the upright state of the workpiece 20 to be tested and improve the testing efficiency and accuracy.

[0059] Furthermore, the two second support members 120 of this application can move closer or further apart from each other, making this application applicable to workpieces 20 of different specifications, thus expanding the scope of application and providing good flexibility.

[0060] Example 2 Please see Figure 1 Based on the above embodiments, this embodiment provides a testing system, which includes an X-ray testing device and the testing fixture 10 in the above embodiments. The testing fixture 10 is located in the testing space of the X-ray testing device.

[0061] A transmitter is set up on one side of the test space and a receiver is set up on the other side of the test space. The test fixture 10, on which the workpiece 20 to be tested is placed, is moved between the transmitter and the receiver to perform the test on the workpiece 20.

[0062] Since this embodiment includes the test fixture 10 provided in the above embodiments, this embodiment has all the advantages of the above embodiments.

[0063] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0064] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A testing fixture, characterized in that, The device includes a base and a first support member and two second support members mounted on the base. The first support member and the two second support members are arranged at intervals along a first direction. The first support member has a support position. The two second support members are located on both sides of the first support member. The two second support members are close to or far from each other along the first direction. Each second support member has a support groove. The support groove is oriented towards the first support member. The two support grooves and the support position together define a support space.

2. The test fixture as described in claim 1, characterized in that, It also includes a first drive assembly, the drive end of which is respectively connected to the two second support members for transmission, so that each second support member moves relative to the base in a first direction.

3. The test fixture as described in claim 2, characterized in that, The first drive assembly includes a motor, a first pulley, an operating handwheel, a second pulley, a belt, and a lead screw drive mechanism. The first pulley is mounted on the output end of the motor, the second pulley is mounted on the output end of the operating handwheel, the belt is respectively sleeved on the first pulley and the second pulley, the input end of the lead screw drive mechanism is connected to the second pulley, and the output end of the lead screw drive mechanism is connected to the two second support members.

4. The test fixture as described in claim 3, characterized in that, The second support member includes a body portion and a movable portion. The body portion and the movable portion together define a support groove. The body portion is connected to the output end of the lead screw transmission mechanism. The movable portion moves relative to the body portion in a second direction, which is perpendicular to the first direction.

5. The test fixture as described in claim 4, characterized in that, The main body is Z-shaped and includes a first body portion, a second body portion, and a third body portion connected to each other. The moving part includes a first moving portion, a second moving portion, and a third moving portion connected to each other. The first moving portion is slidably connected to the second body portion. The second moving portion passes through the second moving portion. The third moving portion and the third body portion respectively form the groove wall of the supporting groove. The second body portion forms the groove bottom of the supporting groove.

6. The test fixture as described in claim 5, characterized in that, The walls of the support groove are made of wood.

7. The test fixture as described in claim 4, characterized in that, It also includes a second drive assembly, the drive end of which is connected to the two moving parts in a transmission manner.

8. The test fixture as described in any one of claims 1 to 7, characterized in that, It also includes a third support member, which is mounted on the base and is spaced apart from the first support member along a second direction.

9. The test fixture as described in claim 8, characterized in that, It also includes a third drive assembly, the drive end of which is connected to the third support member in a transmission connection, so that the third support member moves relative to the base in the second direction.

10. A testing system, characterized in that, It includes an X-ray testing device and a testing fixture as described in any one of claims 1 to 9, wherein the testing fixture is located within the testing space of the X-ray testing device.

Images