Fixing tool and electromagnetic test device

Abstract

The utility model relates to the technical field of electromagnetic environment testing, and particularly discloses a fixing tool and an electromagnetic testing device.The fixing tool comprises a workbench, a bearing mechanism and a supporting mechanism, the bearing mechanism comprises a first clamping assembly and a driving assembly, the first clamping assembly is connected with the workbench, the driving assembly is in transmission connection with the first clamping assembly, and the supporting mechanism is connected with the workbench. The driving assembly can drive the first clamping assembly to clamp or open, the supporting mechanism comprises a second clamping assembly and an anti-shake assembly which are connected, the anti-shake assembly is connected with the workbench, and the anti-shake assembly can keep the second clamping assembly at a preset position. The driving assembly drives the first clamping assembly to clamp the equipment body, so that the equipment body is fixed to the workbench, and movement of the equipment body under different working conditions is reduced. The anti-shake assembly keeps the combination of the second clamping assembly and the test probe at a preset position, so that shaking or movement of the test probe under different working conditions is reduced, stability is kept, and the accuracy of a test result is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic environment testing, in particular to a fixing tool and an electromagnetic testing device. Background Art

[0002] With the continuous development of automotive electronic and electrical technology, the level of intelligent connectivity is increasing. New energy vehicles generally use high-voltage components such as power batteries, drive motors, and inverters. Compared with the core systems of traditional fuel vehicles, they are more likely to generate high-power, low-frequency electromagnetic radiation. Unlike passenger cars, which are mostly used as a means of transportation, commercial vehicles are often used as professional tools, and users work longer hours and are exposed to electromagnetic radiation inside the vehicle.

[0003] Therefore, cab electromagnetic environment testing equipment came into being. Electromagnetic environment testing equipment can test and evaluate the electromagnetic field inside the cab. However, due to the variety of cab shapes, structures and constructions, when conducting electromagnetic field tests on the cab, the electromagnetic environment testing equipment is placed in the cab, which is inconvenient to install. Moreover, during the test, it is necessary not only to test under the vehicle's stationary working condition, but also to test under different working conditions such as different speeds, environments and loads. The electromagnetic environment testing equipment is easy to shake or fall, and the test conditions are limited, which can easily cause inaccurate test results, and the electromagnetic environment testing equipment is easy to be damaged. Utility Model Content

[0004] The purpose of the utility model is to provide a fixed tooling and an electromagnetic test device to solve the problem in the related art that electromagnetic environment test equipment is prone to shaking or falling when performing electromagnetic tests under different working conditions, resulting in inaccurate test results.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] In a first aspect, the present invention provides a fixing fixture for fixing a test device, wherein the test device includes a device body and a test probe connected to each other, and the fixing fixture includes:

[0007] Workbench;

[0008] The supporting mechanism includes a first clamping assembly and a driving assembly, wherein the first clamping assembly is connected to the workbench, the driving assembly is in transmission connection with the first clamping assembly, and the driving assembly can drive the first clamping assembly to clamp or open, and the first clamping assembly is used to clamp the device body;

[0009] The supporting mechanism includes a second clamping assembly and an anti-shake assembly connected to each other, wherein the second clamping assembly is used to clamp the test probe, and the anti-shake assembly is connected to the workbench, and the anti-shake assembly can keep the second clamping assembly in a preset position.

[0010] In one embodiment, the first clamping assembly includes at least two clamping arms, the clamping arms are slidably connected to the workbench, and the clamping arms are respectively arranged on both sides of the workbench;

[0011] The driving assembly includes a lead screw and a driving member. The clamping arms are arranged on the lead screw. The driving member can drive the lead screw to rotate, so as to drive two adjacent clamping arms to move closer to or away from each other.

[0012] In one embodiment, the clamping arm comprises:

[0013] a slider, the slider being arranged on the lead screw and being slidably connected to the workbench;

[0014] an arm body, the arm body being rotatably connected to the slider, and the arm body being at least partially configured to press against the device body;

[0015] A first telescopic member, one end of which is rotatably connected to the slider, a second end of which is connected to the arm body, and the first telescopic member is used to adjust the distance between the portion of the arm body that presses against the device body and the device body.

[0016] In one embodiment, the clamping arm further includes a suction cup, which is rotatably connected to the arm body. The suction cup is disposed at an end of the arm body away from the slider, and the suction cup is used to press against the device body.

[0017] In one embodiment, the first clamping assembly and the driving assembly are arranged in groups corresponding to each other, and a plurality of them are arranged at intervals.

[0018] In one embodiment, the anti-shake component includes:

[0019] First rotating arm;

[0020] a second rotating arm, the second rotating arm being rotatably connected to the first rotating arm, one of the first rotating arm and the second rotating arm being used to be connected to the second clamping assembly, and the other being used to be connected to the workbench;

[0021] a gyroscope, the gyroscope being configured to detect an angular velocity of relative rotation between the first rotating arm and the second rotating arm;

[0022] an acceleration sensor for detecting the acceleration of the relative rotation of the first rotating arm and the second rotating arm;

[0023] A rotation driving member is used to drive the first rotating arm and the second rotating arm to rotate.

[0024] In one embodiment, a plurality of the anti-shake components are provided, and the plurality of the anti-shake components are connected in sequence, and the rotation axes of the first rotating arm and the second rotating arm of any two adjacent anti-shake components among the plurality of the anti-shake components form an angle.

[0025] In one embodiment, the supporting mechanism further comprises:

[0026] a second telescopic member, the second telescopic member being disposed below the workbench and configured to separate the workbench from the placement surface;

[0027] A shock absorbing member is provided between the second telescopic member and the workbench, and is used for reducing vibration of the workbench.

[0028] In one embodiment, the support mechanism further comprises:

[0029] a third telescopic member, the third telescopic member being disposed between the anti-shake assembly and the workbench, and being used to adjust the distance between the second clamping assembly and the workbench;

[0030] A rotating member is connected between the third telescopic member and the workbench, and the rotating member can drive the third telescopic member to rotate relative to the workbench.

[0031] In a second aspect, the utility model provides an electromagnetic testing device, comprising a testing device and a fixed tool in any of the above solutions, wherein the testing device is installed on the fixed tool.

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

[0033] The utility model provides a fixed fixture and an electromagnetic test device, the fixed fixture including a workbench, a supporting mechanism, and a support mechanism. When in use, a driving assembly drives a first clamping assembly to open, and the device body can be placed on the workbench and located within the clamping space of the first clamping assembly. The driving assembly drives the first clamping assembly to clamp the device body to fix the device body on the workbench. The workbench can be stably placed or connected to a testing space such as a cab to reduce the movement of the device body under different working conditions. A test probe can be placed at and clamped by the second clamping assembly. An anti-shake assembly is provided between the workbench and the second clamping assembly to maintain the combination of the second clamping assembly and the test probe in a preset position, reducing the shaking or movement of the test probe under different working conditions, maintaining stability, and improving the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic structural diagram of an electromagnetic test device in an embodiment of the present utility model;

[0035] Figure 2 This is a schematic structural diagram of a fixed tooling in an embodiment of the present utility model;

[0036] Figure 3 This is a structural diagram of the first clamping assembly in an embodiment of the present utility model;

[0037] Figure 4 This is a structural diagram of the support mechanism in an embodiment of the present utility model;

[0038] Figure 5 Schematic diagram of the positions of the second telescopic member and the shock absorbing member in the embodiment of the utility model.

[0039] In the picture:

[0040] 1. Workbench;

[0041] 2. Supporting organization;

[0042] 21. First clamping assembly; 211. Clamping arm; 2111. Slider; 2112. Arm body; 2113. First telescopic member; 2114. Suction cup;

[0043] 22. Drive assembly; 221. Lead screw; 222. Drive member;

[0044] 23. Second telescopic member; 24. Shock-absorbing member;

[0045] 3. Support mechanism;

[0046] 31. Second clamping assembly;

[0047] 32. Anti-shake assembly; 321. First rotating arm; 322. Second rotating arm;

[0048] 33. Third telescopic member; 34. Rotating member;

[0049] 4. Test equipment; 41. Equipment body; 42. Test probe. DETAILED DESCRIPTION

[0050] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0051] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0052] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0053] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0054] like Figures 1 to 2 As shown, an embodiment of the first aspect of the present invention provides a fixing fixture for fixing a test device 4, wherein the test device 4 includes a connected device body 41 and a test probe 42. The fixing fixture includes a workbench 1, a supporting mechanism 2, and a supporting mechanism 3. The supporting mechanism 2 includes a first clamping assembly 21 and a driving assembly 22. The first clamping assembly 21 is connected to the workbench 1, and the driving assembly 22 is in transmission connection with the first clamping assembly 21. The driving assembly 22 can drive the first clamping assembly 21 to clamp or open. The first clamping assembly 21 is used to clamp the device body 41. The supporting mechanism 3 includes a second clamping assembly 31 and an anti-shake assembly 32, which are connected. The second clamping assembly 31 is used to clamp the test probe 42. The anti-shake assembly 32 is connected to the workbench 1, and the anti-shake assembly 32 can maintain the second clamping assembly 31 in a preset position.

[0055] With this arrangement, when in use, the drive assembly 22 drives the first clamping assembly 21 to open, and the device body 41 can be placed on the workbench 1 and located within the clamping space of the first clamping assembly 21. The drive assembly 22 drives the first clamping assembly 21 to clamp the device body 41 to fix the device body 41 on the workbench 1. The workbench 1 can be stably placed or connected to a testing space such as a cab, reducing the movement of the device body 41 under different working conditions. The test probe 42 can be placed on the second clamping assembly 31 and clamped by the second clamping assembly 31. The anti-shake assembly 32 is arranged between the workbench 1 and the second clamping assembly 31 to maintain the combination of the second clamping assembly 31 and the test probe 42 in a preset position, reducing the shaking or movement of the test probe 42 under different working conditions, maintaining stability, and improving the accuracy of the test results. This solves the problem in the related art that the electromagnetic environment test equipment 4 is prone to shaking or falling when performing electromagnetic testing under different working conditions, resulting in inaccurate test results.

[0056] like Figures 1 to 3 As shown, in some embodiments, the first clamping assembly 21 includes at least two clamping arms 211, which can be slidably connected to the workbench 1. The clamping arms 211 are respectively arranged on both sides of the workbench 1, so that the device body 41 can be placed between adjacent clamping arms 211 and then clamped on both sides by the clamping arms 211. The driving assembly 22 includes a screw 221 and a driving member 222. The clamping arms 211 are arranged on the screw 221. The driving member 222 can drive the screw 221 to rotate, so as to drive the two adjacent clamping arms 211 to move closer to each other or away from each other. In this arrangement, when in use, the driving member 222 drives the two adjacent clamping arms 211 away from each other, which can provide a clamping space for the device body 41. The device body 41 can be placed in the clamping space between the two adjacent clamping arms 211. The driving member 222 drives the two adjacent clamping arms 211 to move closer to each other. The clamping arms 211 can be clamped and fixed on both sides of the device body 41, so that the device body 41 and the workbench 1 are fixed in position.

[0057] In this embodiment, the lead screw 221 may be provided with two threaded segments with opposite rotational directions, and the clamping arms 211 may be provided on each of the two threaded segments. A single driver 222 drives the lead screw 221 to rotate forward or reverse, thereby moving the clamping arms 211 located on the two threaded segments closer together or further apart. The lead screw 221 is a self-locking lead screw 221. After the driving force is removed, the lead screw 221 and the clamping arms 211 are fixed relative to each other. Alternatively, the lead screw 221 and the driver 222 may be provided in two corresponding sets, each set of lead screw 221 and driver 222 being capable of driving one of two adjacent clamping arms 211. By driving the lead screw 221 forward or reversely in each set, the adjacent clamping arms 211 can be moved closer together or further apart. Alternatively, the threads on the lead screw 221 may have the same rotational direction, while the threads on adjacent clamping arms 211 may have opposite rotational directions. Rotation of the lead screw 221 may also drive the adjacent clamping arms 211 closer together or further apart. The driving member 222 can be, but is not limited to, a motor, a pneumatic cylinder, or a hydraulic cylinder, and the driving member 222 can be connected to an external control device to achieve remote control of the first clamping assembly 21. Of course, the driving member 222 can be configured as a handwheel, and the lead screw 221 can be rotated by turning the handwheel.

[0058] like Figures 1 to 3 As shown, in some embodiments, the clamping arm 211 includes a slider 2111, an arm body 2112, and a first telescopic member 2113. The slider 2111 is disposed on the lead screw 221 and can be slidably connected to the workbench 1, that is, the slider 2111 can slide along the workbench 1, and the workbench 1 can provide a sliding guide for the slider 2111. The arm body 2112 is rotatably connected to the slider 2111, and the arm body 2112 is at least partially used to press against the device body 41. One end of the first telescopic member 2113 is rotatably connected to the slider 2111, and the second end of the first telescopic member 2113 is connected to the arm body 2112. The first telescopic member 2113 is used to adjust the distance between the portion of the arm body 2112 that presses against the device body 41 and the device body 41.

[0059] With such a configuration, when in use, the rotation of the lead screw 221 can drive the slider 2111 to slide along the workbench 1 to adjust the clamping position of the clamping arm 2111. The first telescopic member 2113 extends or shortens to drive the arm body 2112 to rotate relative to the slider 2111 to adjust the angle between the arm body 2112 and the workbench 1, thereby adjusting the distance between the portion of the arm body 2112 that presses against the device body 41 and the device body 41, and further adjusting the clamping position and clamping force of the arm body 2112 on the device body 41. In addition, during the clamping process, when the slider 2111 drives the arm body 2112 to move near the device body 41, the position of the slider 2111 can be kept unchanged, and the arm body 2112 can be rotated close to the device body 41 through the telescopic movement of the first telescopic member 2113 to clamp the device body 41. After use, the telescopic movement of the first telescopic member 2113 drives the arm body 2112 to rotate away from the device body 41 so that the device body 41 can be removed.

[0060] In this embodiment, the first telescopic member 2113 can be, but is not limited to, a telescopic tube, an electric push rod, a pneumatic cylinder, or a hydraulic cylinder. The workbench 1 can be provided with a strip-shaped groove, into which the slider 2111 can at least partially extend. The slider 2111 is slidably connected to the groove to facilitate directional movement of the slider 2111. The portion of the arm body 2112 that contacts the device body 41 can be flexible, thereby forming a flexible contact between the arm body 2112 and the device body 41, thereby reducing wear or collision damage caused by the arm body 2112 to the device body 41 during different motion conditions.

[0061] like Figures 1 to 3 As shown, in some embodiments, the clamping arm 211 also includes a suction cup 2114, which is rotatably connected to the arm body 2112. The suction cup 2114 is arranged at the end of the arm body 2112 away from the slider 2111, and the suction cup 2114 is used to press against the device body 41. With such a configuration, the suction cup 2114 can rotate with the arm body 2112, and the suction cup 2114 is rotatably connected to the arm body 2112. When the suction cup 2114 presses against the device body 41, the suction cup 2114 can adaptively rotate and press against and fix the device body 41 with a larger adsorption area. It can not only flexibly abut against the device body 41, but also be adsorbed and pressed by the suction cup 2114, which greatly reduces the movement or shaking of the device body 41.

[0062] In this embodiment, the clamping arm 211 may further include a pressure sensor, which is used to detect the pressing force of the suction cup 2114 on the device body 41 to reduce the situation where the clamping arm 211 over-squeezes the device body 41 and causes damage.

[0063] like Figures 1 to 2As shown, in some embodiments, the first clamping assembly 21 and the driving assembly 22 are arranged in groups corresponding to each other, and multiple groups of first clamping assemblies 21 and driving assemblies 22 are arranged at intervals. Multiple groups of first clamping assemblies 21 and driving assemblies 22 can be arranged along the radial direction of the screw 221. Multiple groups of first clamping assemblies 21 can form multi-point pressure fixation on the equipment main body 41, further reducing the shaking or displacement of the equipment main body 41.

[0064] In some embodiments, the second clamping assembly 31 may include a clamp that can clamp or loosen the test probe 42. The test probe 42 and the clamp are detachably connected, such as by snapping, threading, or magnetic connection, so as to fix the test probe 42.

[0065] like Figure 1 and Figure 4 As shown, in some embodiments, the anti-shake assembly 32 includes a first rotating arm 321, a second rotating arm 322, a gyroscope, an acceleration sensor and a rotating drive member, and the second rotating arm 322 is rotatably connected to the first rotating arm 321. One of the first rotating arm 321 and the second rotating arm 322 is used to connect to the second clamping assembly 31, and the other is used to connect to the workbench 1, that is, the first rotating arm 321 and the second rotating arm 322 are respectively connected to the components on the side of the second clamping assembly 31 and the side of the workbench 1. When the second clamping assembly 31 shakes relative to the workbench 1, it will be reflected in the relative rotation of the first rotating arm 321 and the second rotating arm 322.

[0066] The gyroscope is used to detect the angular velocity of the relative rotation between the first rotating arm 321 and the second rotating arm 322. Specifically, the gyroscope can be installed at the connection between the first rotating arm 321 and the second rotating arm 322. The gyroscope has both fixed axis and precession properties, allowing for accurate detection of the angular velocity of the relative rotation between the first rotating arm 321 and the second rotating arm 322. The acceleration sensor is used to detect the acceleration of the relative rotation between the first rotating arm 321 and the second rotating arm 322. Specifically, the acceleration sensor can be installed at the connection between the first rotating arm 321 and the second rotating arm 322, allowing for accurate detection of the acceleration of the rotational motion of the first rotating arm 321 and the second rotating arm 322.

[0067] The rotating driving member is used to drive the first rotating arm 321 to rotate relative to the second rotating arm 322, that is, the rotating driving member can be set at the connection position between the first rotating arm 321 and the second rotating arm 322, and the rotating driving member is transmission-connected to the first rotating arm 321, and can drive the first rotating arm 321 to rotate relative to the second rotating arm 322, so as to timely drive the first rotating arm 321 to rotate relative to the second rotating arm 322 according to the shaking degree of the second clamping assembly 31 reflected by the detection data of the gyroscope and the acceleration sensor, so that the angle between the first rotating arm 321 and the second rotating arm 322 maintains dynamic balance, thereby keeping the second clamping assembly 31 in the preset position, and then placing the test probe 42 at the preset position, thereby improving the accuracy of the test results.

[0068] In this embodiment, the anti-shake component 32 may also include a controller, which may be but is not limited to a programmable logic controller. The gyroscope, acceleration sensor and rotating drive member may all be connected to the controller for communication. The controller may transmit the detection data of the gyroscope and acceleration sensor to the rotating drive member and may adjust the driving torque of the rotating drive member to improve the accuracy of the rotation drive of the rotating drive member.

[0069] like Figure 1 and Figure 4 As shown, in some embodiments, multiple anti-shake assemblies 32 are provided, and the multiple anti-shake assemblies 32 are connected in sequence. The rotation axes of the first rotating arm 321 and the second rotating arm 322 of any two adjacent anti-shake assemblies 32 form an angle. The multiple anti-shake assemblies 32 can provide multi-directional anti-shake between the second clamping assembly 31 and the workbench 1, thereby maintaining the test probe 42 in a preset position in three-dimensional space. The anti-shake assembly 32 not only protects high-precision equipment such as the test probe 42 from vibration, but also adjusts the fixed test posture and measurement position of the test probe 42, thereby improving test stability.

[0070] In this embodiment, three anti-shake assemblies 32 can be provided, connected in sequence. The angle between the rotational axes of the first rotating arm 321 and the second rotating arm 322 of any two adjacent anti-shake assemblies 32 can be acute or right. When the gyroscope and accelerometer detect shaking of the second clamping assembly 31, the rotating drive components in the multiple anti-shake assemblies 32 quickly and rapidly adjust the relative angles of the first rotating arm 321 and the second rotating arm 322, thereby returning the second clamping assembly 31 and the test probe 42 to the preset position. The anti-shake assemblies 32 ensure the stability of the test probe 42 during testing, thereby providing protection. For example, the test probe 42 can always remain horizontal despite vehicle vibration.

[0071] like Figure 1 and Figure 5 As shown, in some embodiments, the supporting mechanism 2 also includes a second telescopic member 23 and a shock-absorbing member 24. The second telescopic member 23 is arranged below the workbench 1. The second telescopic member 23 supports the workbench 1 from the placement surface. The second telescopic member 23 can support the workbench 1 from the placement surface to different height positions, which is convenient for supporting and fixing the equipment body 41, and can also support the second clamping assembly 31 and the test probe 42 to different height positions.

[0072] Multiple second telescopic members 23 may be provided, and multiple second telescopic members 23 may be arranged along the circumference of the workbench 1. Each second telescopic member 23 can be extended or shortened to enable the support mechanism 2 to adapt to uneven placement surfaces and support the workbench 1 in a horizontal position, also facilitating folding, storage, and transportation. A shock absorber 24 is provided between the second telescopic member 23 and the workbench 1. The shock absorber 24 is used to reduce vibrations in the workbench 1. The shock absorber 24 can jointly reduce vibrations in the workbench 1 and the support mechanism 3 connected thereto, thereby reducing vibration damage to the equipment body 41 or excessive shaking of the test probe 42 caused by impact forces under different operating conditions.

[0073] In this embodiment, the second telescopic member 23 may be, but is not limited to, a telescopic tube, an electric push rod, a pneumatic cylinder, or a hydraulic cylinder. The shock absorber 24 may be, but is not limited to, a high-strength elastic member or a hydraulic shock absorber. For example, the shock absorber 24 may include a spring and a sleeve. The spring may be a high-strength spring, which is sleeved on the sleeve. One end of the sleeve is fixedly connected to the second telescopic member 23, and the other end is slidably connected to the workbench 1. The spring is capable of elastic deformation to reduce vibration of the work platform.

[0074] like Figure 1 and Figure 4 As shown, in some embodiments, the support mechanism 3 further includes a third telescopic member 33 and a rotating member 34. The third telescopic member 33 is disposed between the anti-shake assembly 32 and the workbench 1. The third telescopic member 33 is used to adjust the distance between the second clamping assembly 31 and the workbench 1 so as to move the test probe 42 to different positions for easy detection at different positions. The rotating member 34 is connected between the third telescopic member 33 and the workbench 1. The rotating member 34 can drive the third telescopic member 33 to rotate relative to the workbench 1 so as to adjust the placement angle of the test probe 42 relative to the workbench 1, thereby enabling the test probe 42 to be detected at different angles, providing more diverse usage methods and more efficient position adjustment.

[0075] In this embodiment, the rotating member 34 and the third telescopic member 33 can be, but are not limited to, motors, cylinders, or hydraulic cylinders. The rotating member 34 can be provided with two degrees of rotational freedom, and the rotating member 34 can rotate vertically and horizontally. The rotating member 34 can be fixedly connected to the workbench 1 to maintain the stability of the support mechanism 3. For example, the rotating member 34 can include two cylinders, one cylinder drives the third telescopic member 33 to rotate vertically, and the other cylinder drives the third telescopic member 33 to rotate horizontally. It should be noted here that in order to increase the diversity of the detection positions of the test probe 42, the support mechanism 3 can also include multiple slide rails, and the multiple slide rails can be arranged on the workbench 1 in different directions so that the second clamping assembly 31 can slide relative to the workbench 1 in different directions.

[0076] like Figures 1 to 2As shown, an embodiment of the second aspect of the present invention provides an electromagnetic test device, including a test device 4 and a fixed tool in any of the above-mentioned schemes, the test device 4 is installed on the fixed tool, and the test device 4 can be configured as an electromagnetic detection device. For example, the device body 41 of the test device 4 can be configured as a spectrum analyzer, and the test probe 42 of the test device 4 can be configured as an omnidirectional field strength probe. The electromagnetic test device can be applied to vehicles so as to perform electromagnetic environment detection in cabs of various structural forms, and the measurement position can be flexibly adjusted. It should be noted here that the fixed tool can be used for the test device 4 for dynamic testing of real vehicles. The test device 4 is not limited to the electromagnetic field test device 4, and is also applicable to other test devices 4 containing probes or industrial computers that require protection, shockproofing, and fixed measurement positions for dynamic testing of real vehicles.

[0077] The electromagnetic test device can be used to measure the electromagnetic environment parameters of the cab under different driving conditions. The different driving conditions may include driving speed, driving environment and driving load. Driving speed includes acceleration, deceleration, low speed or high speed. Driving environment includes parking charging, loop driving or bad road driving. Driving load conditions include empty load and full load.

[0078] For example, when performing electromagnetic field testing in the cab during acceleration, deceleration, or driving on bad roads, the driving environment in the cab is bumpy and shaking, and the test equipment 4 vibrates. The parameters collected by the test probe 42 in this environment are unstable and easily damaged by collision. The supporting mechanism 2 of the fixed tooling can fix and protect the equipment body 41 to reduce damage, and the supporting mechanism 3 can fix, support and protect the test probe 42, thereby achieving accurate and stable completion of the real vehicle dynamic test without damaging the test equipment 4.

[0079] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A fixture for fixing a test device (4), wherein the test device (4) comprises a device body (41) and a test probe (42) connected to each other, characterized in that: The fixed tooling includes: Workbench (1); The supporting mechanism (2) comprises a first clamping assembly (21) and a driving assembly (22), wherein the first clamping assembly (21) is connected to the workbench (1), and the driving assembly (22) is in transmission connection with the first clamping assembly (21), and the driving assembly (22) can drive the first clamping assembly (21) to clamp or open, and the first clamping assembly (21) is used to clamp the device body (41); The support mechanism (3) comprises a second clamping assembly (31) and an anti-shake assembly (32) connected to each other, wherein the second clamping assembly (31) is used to clamp the test probe (42), and the anti-shake assembly (32) is connected to the workbench (1), and the anti-shake assembly (32) can maintain the second clamping assembly (31) at a preset position.

2. The fixing tool according to claim 1, characterized in that: The first clamping assembly (21) comprises at least two clamping arms (211), the clamping arms (211) being slidably connected to the workbench (1), and the clamping arms (211) being arranged on both sides of the workbench (1); The driving assembly (22) comprises a lead screw (221) and a driving member (222); the clamping arms (211) are arranged on the lead screw (221); and the driving member (222) can drive the lead screw (221) to rotate, thereby driving two adjacent clamping arms (211) to move closer to or farther away from each other.

3. The fixing tool according to claim 2, characterized in that: The clamping arm (211) comprises: a slider (2111), the slider (2111) being arranged on the lead screw (221) and capable of being slidably connected to the workbench (1); an arm body (2112), the arm body (2112) being rotatably connected to the slider (2111), and at least a portion of the arm body (2112) being used to press against the device body (41); A first telescopic member (2113), one end of the first telescopic member (2113) is rotatably connected to the slider (2111), and a second end of the first telescopic member (2113) is connected to the arm body (2112). The first telescopic member (2113) is used to adjust the distance between the part of the arm body (2112) that presses against the device body (41) and the device body (41).

4. The fixing tool according to claim 3, characterized in that: The clamping arm (211) further includes a suction cup (2114), which is rotatably connected to the arm body (2112). The suction cup (2114) is arranged at the end of the arm body (2112) away from the slider (2111), and the suction cup (2114) is used to press against the device body (41).

5. The fixing tool according to claim 1, characterized in that: The first clamping assembly (21) and the driving assembly (22) are arranged in groups corresponding to each other, and a plurality of them are arranged at intervals.

6. The fixing tool according to claim 1, characterized in that: The anti-shake component (32) includes: A first rotating arm (321); a second rotating arm (322), the second rotating arm (322) being rotatably connected to the first rotating arm (321), one of the first rotating arm (321) and the second rotating arm (322) being used to be connected to the second clamping assembly (31), and the other being used to be connected to the workbench (1); a gyroscope, the gyroscope being used to detect the angular velocity of relative rotation between the first rotating arm (321) and the second rotating arm (322); an acceleration sensor, the acceleration sensor being used to detect the acceleration of the relative rotation of the first rotating arm (321) and the second rotating arm (322); A rotating drive member is used to drive the first rotating arm (321) and the second rotating arm (322) to rotate.

7. The fixing tool according to claim 6, characterized in that: The anti-shake components (32) are provided in plurality, and the plurality of anti-shake components (32) are connected in sequence, and the rotation axes of the first rotating arm (321) and the second rotating arm (322) of any two adjacent anti-shake components (32) among the plurality of anti-shake components (32) form an angle.

8. The fixing tool according to claim 1, characterized in that: The supporting mechanism (2) further comprises: a second telescopic member (23), the second telescopic member (23) being arranged below the workbench (1), and the second telescopic member (23) being used to separate the workbench (1) from the placement surface; A shock absorbing member (24), the shock absorbing member (24) being arranged between the second telescopic member (23) and the workbench (1), the shock absorbing member (24) being used for shock absorbing the workbench (1).

9. The fixing tool according to claim 1, characterized in that: The support mechanism (3) further comprises: a third telescopic member (33), the third telescopic member (33) being arranged between the anti-shake assembly (32) and the workbench (1), the third telescopic member (33) being used to adjust the distance between the second clamping assembly (31) and the workbench (1); A rotating member (34) is connected between the third telescopic member (33) and the workbench (1), and the rotating member (34) can drive the third telescopic member (33) to rotate relative to the workbench (1).

10. An electromagnetic testing device, characterized in that: It comprises a test device (4) and the fixed tool according to any one of claims 1 to 9, wherein the test device (4) is installed on the fixed tool.

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