Laser range finder auxiliary tool

Abstract

This application relates to the field of ranging equipment, and more particularly to an auxiliary fixture for a laser rangefinder. The auxiliary fixture provided in this application includes a fixture body and an auxiliary top plate. The fixture body includes a mounting base, a locking mechanism, and a positioning mechanism. Both the locking mechanism and the positioning mechanism are connected to the mounting base. The locking mechanism is used to lock the laser rangefinder, and the positioning mechanism is used to position the fixture body on the device to be measured, thereby ensuring measurement accuracy. The auxiliary top plate is used to reflect the laser emitted by the laser rangefinder. This auxiliary fixture for laser rangefinders offers high ranging efficiency and improves measurement accuracy.

Description

Technical Field

[0001] This application relates to the field of ranging equipment, and more particularly to an auxiliary tooling for a laser rangefinder. Background Technology

[0002] As key power distribution equipment in power systems, the structural precision of high and low voltage switchgear directly affects operational safety and service life. During the manufacturing process, factors such as the cumulative processing errors of cabinet structural components and fluctuations in assembly processes can cause millimeter-level deformation of the cabinet frame, leading to problems such as jamming of interlocking mechanisms, poor contact at busbar connection points, and a decrease in protection level.

[0003] Currently, the flatness of high and low voltage switchgear is tested using the traditional method of measuring the diagonal with a tape measure.

[0004] However, the traditional method of measuring diagonals with a measuring tape is difficult to operate, inefficient, and lacks accuracy. Utility Model Content

[0005] This application provides an auxiliary tooling for a laser rangefinder to solve the technical problems of poor operability, low efficiency, and insufficient accuracy of the current method of measuring diagonals using traditional tape measures.

[0006] This application provides an auxiliary fixture for a laser rangefinder. The auxiliary fixture includes a fixture body and an auxiliary top plate. The fixture body includes a mounting base, a snap-fit ​​mechanism, and a positioning mechanism. Both the snap-fit ​​mechanism and the positioning mechanism are connected to the mounting base. The snap-fit ​​mechanism is used to snap the laser rangefinder into place, and the positioning mechanism is used to position the fixture body on the device to be measured to ensure measurement accuracy. The auxiliary top plate is used to reflect the laser emitted by the laser rangefinder.

[0007] The laser rangefinder auxiliary fixture provided in this application positions the fixture body on the device to be measured through a positioning mechanism, and the laser rangefinder is snapped onto the fixture body through a snap-fit ​​mechanism. The laser rangefinder can emit a laser towards the auxiliary top plate to measure the distance between the fixture body and the auxiliary top plate and the flatness of the surface of the device to be measured. The laser rangefinder auxiliary fixture can improve measurement efficiency and accuracy, and at the same time improve the convenience of operation.

[0008] In one alternative implementation, the locking mechanism includes a receiving groove and at least two locking parts. The receiving groove is disposed on the mounting base, and the at least two locking parts are respectively disposed on the two side edges of the receiving groove. The receiving groove is used to receive the laser rangefinder, and the locking parts are used to limit the laser rangefinder to prevent the laser rangefinder from falling out of the receiving groove.

[0009] This design allows the laser rangefinder to be secured using the receiving slot and two locking parts, preventing it from falling.

[0010] In one alternative implementation, the mounting base has a plurality of first mounting slots and at least one second mounting slot. The first mounting slots are used to mount magnets so that the mounting base is magnetically connected to the device under test. The second mounting slots are used to mount magnets or left empty to adjust the magnetic force between the mounting base and the device under test.

[0011] This setup allows the mounting base to be secured to the device under test using magnets, preventing it from falling off.

[0012] In one optional implementation, the positioning mechanism includes a positioning part and a clamping part. The positioning part includes a positioning base, a positioning bottom plate, and a connecting shaft. The positioning base is connected to the mounting base, and the two ends of the connecting shaft are respectively connected to the positioning base and the positioning bottom plate. The clamping part is rotatably connected to the connecting shaft.

[0013] With this configuration, the laser emission angle can be adjusted by rotating the clamping part and the connecting shaft.

[0014] In one alternative embodiment, the clamping part includes a positioning claw and a claw extension plate. One end of the positioning claw is rotatably connected to the connecting shaft, and the other end of the positioning claw is movably connected to the claw extension plate, so that the claw extension plate extends or retracts relative to the positioning claw.

[0015] This configuration allows for adjustment of the extension length of the claw extension plate according to the working scenario, ensuring connection stability.

[0016] In one alternative implementation, the claw extension plate is provided with at least one third mounting slot for mounting a magnet so that the claw extension plate is magnetically connected to the device under test.

[0017] This setup, using magnets for connection, improves the connection stability between the chuck extension plate and the device under test.

[0018] In one alternative implementation, there are at least two clamping parts, and the at least two clamping parts are arranged vertically.

[0019] This configuration allows for connection to different surfaces of the device under test via two clamping parts, improving connection stability.

[0020] In one alternative implementation, the positioning base plate has a groove that extends along the length of the positioning base plate and is used to engage with the edge of the device under test to position the positioning base plate.

[0021] This design, with the groove engaging with the edge of the device under test, facilitates the positioning of the tooling body.

[0022] In one alternative implementation, the auxiliary top plate includes a mounting top plate, a positioning top plate, and a reflector. The two ends of the positioning top plate along its length are connected to the mounting top plate and the reflector, respectively. The mounting top plate is used to connect the device to be measured, and the reflector is used to receive and reflect the laser emitted by the laser rangefinder.

[0023] The mounting plate, positioning plate, and reflector are all bent structures with a bending angle of 90 degrees. The bending angles of the mounting plate, positioning plate, and reflector are aligned with the edge of the device under test to limit the movement of the auxiliary plate.

[0024] This design facilitates the placement of the auxiliary top plate on the device under test.

[0025] In one alternative implementation, the mounting plate is provided with a plurality of fourth mounting slots for mounting magnets so that the mounting plate is magnetically connected to the device under test.

[0026] This setup allows the connection stability between the mounting plate and the device under test to be improved through the use of magnets.

[0027] This application provides an auxiliary fixture for a laser rangefinder. The fixture includes a main body and an auxiliary top plate. The main body includes a mounting base, a locking mechanism, and a positioning mechanism. Both the locking and positioning mechanisms are connected to the mounting base. The locking mechanism is used to lock the laser rangefinder in place, and the positioning mechanism is used to position the main body of the fixture on the device under test to ensure measurement accuracy. The auxiliary top plate reflects the laser emitted by the laser rangefinder. This auxiliary fixture provides high ranging efficiency and improves measurement accuracy.

[0028] In addition to the technical problems solved by the embodiments of this application, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions described above, other technical problems that can be solved by the laser rangefinder auxiliary tooling provided by this application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further explained in detail in the specific embodiments. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 A first view of the tooling body provided in an embodiment of this application;

[0031] Figure 2A second view of the tooling body provided in an embodiment of this application;

[0032] Figure 3 An exploded view of the tooling body provided in the embodiments of this application;

[0033] Figure 4 This is a schematic diagram of the structure of the mounting base provided in the embodiments of this application;

[0034] Figure 5 This is a schematic diagram of the structure of the auxiliary top plate provided in an embodiment of this application;

[0035] Figure 6 This is a schematic diagram of a measurement scenario for a laser rangefinder auxiliary fixture provided in an embodiment of this application.

[0036] Explanation of reference numerals in the attached figures:

[0037] 10-Main body of tooling;

[0038] 100 - Mounting base; 110 - First mounting slot; 120 - Second mounting slot; 130 - Protrusion;

[0039] 200 - Snap-in mechanism; 210 - Receiving slot; 220 - Snap-in part;

[0040] 300 - Positioning mechanism; 310 - Positioning part; 311 - Positioning base; 3111 - Recessed part; 312 - Positioning base plate; 3121 - Groove; 313 - Connecting shaft; 320 - Clamping part; 321 - Positioning claw; 3211 - Pin hole; 322 - Claw extension plate; 3221 - Third mounting groove; 323 - Arc-shaped sleeve;

[0041] 40 - Auxiliary top plate; 410 - Mounting top plate; 411 - Fourth mounting slot; 420 - Positioning top plate; 430 - Reflector. Detailed Implementation

[0042] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication between 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.

[0043] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this application.

[0044] The terms "first," "second," and "third" (if any) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein.

[0045] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such as a process, method, system, product, or maintenance tool that includes a series of steps or units, not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or maintenance tool.

[0046] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0047] As key power distribution equipment in power systems, the structural precision of high and low voltage switchgear directly affects operational safety and service life. During the manufacturing process, factors such as the cumulative processing errors of cabinet structural components and fluctuations in assembly processes can cause millimeter-level deformation of the cabinet frame, leading to problems such as jamming of interlocking mechanisms, poor contact at busbar connection points, and a decrease in protection level.

[0048] Currently, the flatness of high and low voltage switchgear is tested using the traditional method of measuring the diagonal with a tape measure.

[0049] However, the traditional method of measuring diagonals with a measuring tape requires two people to work together and is greatly affected by the skill level of the operators. This method is difficult to operate, inefficient, and lacks measurement accuracy.

[0050] To address the aforementioned technical problems, this application provides an auxiliary fixture for a laser rangefinder, comprising a fixture body and an auxiliary top plate. The fixture body can be secured to the laser rangefinder via a snap-fit ​​mechanism, and then fixed to the device under test via a positioning mechanism and a mounting base. The auxiliary top plate can be connected to the device under test and is opposite to the fixture body. The laser rangefinder calculates the distance between the fixture body and the auxiliary top plate by emitting a laser and receiving the laser reflected from the auxiliary top plate. This fixture offers high distance measurement efficiency, improves measurement accuracy, and is easy to operate.

[0051] Figure 1 A first view of the tooling body provided in an embodiment of this application; Figure 2 A second view of the tooling body provided in an embodiment of this application; Figure 3 An exploded view of the tooling body provided in the embodiments of this application; Figure 4 This is a schematic diagram of the structure of the mounting base provided in the embodiments of this application; Figure 5 This is a schematic diagram of the structure of the auxiliary top plate provided in an embodiment of this application; Figure 6 This is a schematic diagram of a measurement scenario for a laser rangefinder auxiliary fixture provided in an embodiment of this application.

[0052] Reference Figures 1 to 6 This application provides an auxiliary fixture for a laser rangefinder. The auxiliary fixture includes a fixture body 10 and an auxiliary top plate 40. The fixture body 10 includes a mounting base 100, a snap-fit ​​mechanism 200, and a positioning mechanism 300. Both the snap-fit ​​mechanism 200 and the positioning mechanism 300 are connected to the mounting base 100. The snap-fit ​​mechanism 200 is used to snap the laser rangefinder, and the positioning mechanism 300 is used to position the fixture body 10 on the device to be measured to ensure measurement accuracy. The auxiliary top plate 40 is used to reflect the laser emitted by the laser rangefinder.

[0053] Understandably, when measuring the distance between any two points of the device under test using a laser rangefinder, the fixture body 10 and the auxiliary top plate 40 are fixedly connected to the two points of the device under test, respectively. The fixture body 10 uses a snap-fit ​​mechanism 200 to snap the laser rangefinder into place, keeping the laser rangefinder fixed relative to the fixture body 10. The fixture body 10 then uses a positioning mechanism 300 to adjust the angle and direction of the laser rangefinder relative to the device under test, ensuring measurement accuracy and keeping the error within ±5mm. The steps are simplified to no more than 3 steps.

[0054] As one possible implementation, the latching mechanism 200 includes a receiving groove 210 and at least two latching parts 220. The receiving groove 210 is disposed on the mounting base 100, and the at least two latching parts 220 are respectively disposed on the two side edges of the receiving groove 210. The receiving groove 210 is used to receive the laser rangefinder, and the latching parts 220 are used to limit the laser rangefinder and prevent the laser rangefinder from falling out of the receiving groove 210.

[0055] Understandably, the shape and size of the receiving slot 210 are matched with the laser rangefinder. When the laser rangefinder is placed in the receiving slot 210, at least part of it is outside the receiving slot 210. One end of the latching part 220 is connected to the mounting base 100, and the other end extends away from the mounting base 100. The end of the latching part 220 away from the mounting base 100 has a bent structure that extends from the edge of the receiving slot 210 to the center. The bent structures of at least two latching parts 220 are opposite each other to limit and fix the laser rangefinder.

[0056] During installation, the laser rangefinder can be inserted into the middle of the latching parts 220 on both sides of the receiving slot 210, causing the latching parts 220 to undergo elastic deformation. After the laser rangefinder is completely placed in the receiving slot 210, the rebound force of the latching parts 220 can fix the laser rangefinder and prevent it from falling.

[0057] The number of latching parts 220 can be two, four, six, etc., and this application embodiment does not make a specific limitation.

[0058] As one possible implementation, the mounting base 100 is provided with a plurality of first mounting slots 110 and at least one second mounting slot 120. The first mounting slots 110 are used to install magnets so that the mounting base 100 is magnetically connected to the device under test. The second mounting slots 120 are used to install magnets or are left empty to adjust the magnetic force between the mounting base 100 and the device under test.

[0059] In some embodiments, the first mounting groove 110 and the second mounting groove 120 may be disposed on the side of the mounting base 100 away from the receiving groove 210. The first mounting groove 110 and the second mounting groove 120 may be square, round, elliptical, etc., and the embodiments of this application do not make specific limitations.

[0060] The mounting base 100 has multiple first mounting slots 110, which are spaced apart on the same surface. Each first mounting slot 110 can hold magnets, permanent magnet pieces, etc. When the magnets or permanent magnet pieces are installed in the first mounting slots 110, they are press-fitted to prevent them from falling out. Before installation, the surfaces of the permanent magnet pieces and the first mounting slots 110 can be manually polished to ensure flatness.

[0061] There is at least one second mounting slot 120. The second mounting slot 120 can be used to install magnets, permanent magnet plates, etc., or it can be left empty. The second mounting slot 120 can serve as an expansion pile position, allowing for the installation of magnets, permanent magnet plates, etc., when magnetic force is insufficient, to ensure connection stability. The method of installing magnets in the second mounting slot 120 is the same as that in the first mounting slot 110.

[0062] As one possible implementation, the positioning mechanism 300 includes a positioning part 310 and a clamping part 320. The positioning part 310 includes a positioning base 311, a positioning base plate 312 and a connecting shaft 313. The positioning base 311 is connected to the mounting base 100, and the two ends of the connecting shaft 313 are respectively connected to the positioning base 311 and the positioning base plate 312. The clamping part 320 is rotatably connected to the connecting shaft 313.

[0063] It should be noted that the positioning base 311 and the mounting base 100 can be integrally formed or detachably connected; the connecting shaft 313 and the positioning base 311, and the connecting shaft 313 and the positioning base plate 312 can be integrally formed or detachably connected.

[0064] In some embodiments, the mounting base 100 has a bottom protrusion 130, and the positioning base 311 has a recess 3111 that matches the protrusion 130. The protrusion 130 and the recess 3111 can be interference-fitted to connect the mounting base 100 and the positioning base 311. When disassembling, the mounting base 100 and the positioning base 311 can be separated by a removal force greater than the frictional force between the protrusion 130 and the recess 3111.

[0065] In some embodiments, the bottom of the mounting base 100 and the positioning base 311 both have connecting holes. The two connecting holes are connected by connecting blocks that match the shape of the two connecting holes. The connecting blocks can be interference-fitted with the two connecting holes to realize the connection between the mounting base 100 and the positioning base 311.

[0066] In this embodiment, the positioning base 311, the positioning base plate 312, and the connecting shaft 313 are integrally formed. The cross-section of the connecting shaft 313 is circular. The bottom of the clamping part 320 has an integrally formed arc-shaped sleeve 323. The arc-shaped sleeve 323 can be nested on the connecting shaft 313 and rotate around the axis of the connecting shaft 313.

[0067] As one possible implementation, the clamping part 320 includes a positioning claw 321 and a claw extension plate 322. One end of the positioning claw 321 is rotatably connected to the connecting shaft 313, and the other end of the positioning claw 321 is movably connected to the claw extension plate 322, so that the claw extension plate 322 extends or retracts relative to the positioning claw 321.

[0068] It should be noted that one end of the positioning claw 321 can be fixedly connected to the arc-shaped sleeve 323, which can rotate relative to the connecting shaft 313, so that the positioning claw 321 can rotate relative to the connecting shaft 313. The end of the positioning claw 321 away from the connecting shaft 313 can be provided with a pin hole 3211. The claw extension plate can be inserted into the pin hole 3211 and extend or retract relative to the positioning claw 321. Multiple locking positions can be provided in the pin hole 3211 so that the claw extension plate extends to different lengths relative to the positioning claw 321.

[0069] As one possible implementation, the claw extension plate 322 is provided with at least one third mounting slot 3221, which is used to mount a magnet so that the claw extension plate 322 is magnetically connected to the device under test.

[0070] It should be noted that the magnet can be a permanent magnet patch. The permanent magnet patch is installed into the third mounting groove 3221 by interference fit, and the flatness of the surface of the permanent magnet patch and the third mounting groove 3221 is ensured by manual polishing.

[0071] The third mounting slot 3221 on each claw extension plate 322 can be 1, 2, 3, etc., and this application embodiment does not make specific limitations.

[0072] As one possible implementation, there are at least two clamping parts 320, and the at least two clamping parts 320 are arranged vertically.

[0073] As one possible implementation, the positioning base plate 312 has a groove 3121 that extends along the length of the positioning base plate 312. The groove 3121 is used to engage with the edge of the device under test to position the positioning base plate 312.

[0074] Reference Figure 6 When the fixture body 10 is placed on the device under test, the extension direction of the length of the positioning part 310 is defined as the Z direction, the height direction of the device under test is defined as the Y direction, the Z direction is perpendicular to the Y direction, and the direction perpendicular to both the Z and Y directions is defined as the X direction.

[0075] It is understandable that when the tooling body 10 is placed on the device under test, the two clamping parts 320 are clamped on the two side walls of the device under test, that is, the two clamping parts 320 are located on the YZ plane and the XZ plane respectively. At the same time, the groove 3121 is engaged with the edge line between the two side walls of the device under test, thereby realizing the positioning of the positioning base plate 312, and thus realizing the positioning of the entire positioning mechanism 300.

[0076] It should be noted that when the fixture body 10 is placed on the device to be tested, the laser emitted by the laser rangefinder is parallel to the XY plane. When the laser emission angle of the laser rangefinder is adjusted, the mounting base 100 can be rotated. When the mounting base 100 rotates, it drives the positioning part 310 to rotate. At this time, the connecting shaft 313 and the arc sleeve 323 rotate relative to each other, so that the clamping part 320 remains stationary. The groove 3121 rotates relative to the edges of the YZ plane and the XZ plane, but is always engaged with the edges of the YZ plane and the XZ plane.

[0077] As one possible implementation, the auxiliary top plate 40 includes a mounting top plate 410, a positioning top plate 420, and a reflector 430. The two ends of the positioning top plate 420 in the length direction are connected to the mounting top plate 410 and the reflector 430, respectively. The mounting top plate 410 is used to connect the device under test, and the reflector 430 is used to receive and reflect the laser emitted by the laser rangefinder. The mounting top plate 410, the positioning top plate 420, and the reflector 430 are all bent structures with a bending angle of 90 degrees. The bending angle of the mounting top plate 410, the positioning top plate 420, and the reflector 430 abuts against the edge line of the device under test to limit the auxiliary top plate 40.

[0078] As one possible implementation, the mounting plate 410 is provided with a plurality of fourth mounting slots 411 for mounting magnets so that the mounting plate 410 is magnetically connected to the device under test.

[0079] Understandably, during measurement, the auxiliary top plate 40 is placed at another measurement point of the device under test relative to the main fixture 10, to reflect the laser emitted by the laser rangefinder. The auxiliary top plate 40 is connected to the device under test via a magnet, which can be a permanent magnet patch. The permanent magnet patch is installed into the fourth mounting groove 411 by interference fit, and the flatness of the surface of the permanent magnet patch and the fourth mounting groove 411 is ensured by manual grinding.

[0080] For scenarios where high measurement accuracy is not required, any rigid material that meets the 90-degree requirement can be used to replace the positioning top plate 420 and fixed to the device under test by gravity or other simple methods. The positioning top plate 420 can also be adaptively designed and adjusted according to the shape of different devices under test.

[0081] The following example illustrates the usage process of the laser rangefinder auxiliary tooling.

[0082] This embodiment uses a laser rangefinder-assisted tooling to measure the flatness of the high-voltage switchgear.

[0083] First, install the laser rangefinder. Place the laser rangefinder on the mounting base 100 and ensure that the bottom of the laser rangefinder is fully inserted into the receiving groove 210 and flush with the mounting base 100 to avoid affecting the measurement accuracy.

[0084] Then, the mounting base 100 is magnetically fixed to the lower right corner of the high-voltage switchgear cabinet using a permanent magnet.

[0085] Then adjust the two clamping parts 320 to align with the X and Y axes of the cabinet respectively, extend the positioning base plate 312 to align with the edge of the cabinet, and ensure that the groove 3121 is in close contact with the Z axis of the cabinet.

[0086] Then place the auxiliary top plate 40 in the upper left corner of the cabinet and adjust the angle of the mounting base 100.

[0087] Finally, start the rangefinder, align the laser with the 430° angle of the measuring reflector to take a measurement reading, and record the data.

[0088] This application provides an auxiliary fixture for a laser rangefinder. The fixture includes a main body 10 and an auxiliary top plate 40. The main body 10 includes a mounting base 100, a locking mechanism 200, and a positioning mechanism 300. Both the locking mechanism 200 and the positioning mechanism 300 are connected to the mounting base 100. The locking mechanism 200 is used to lock the laser rangefinder, and the positioning mechanism 300 is used to position the main body 10 on the device to be measured to ensure measurement accuracy. The auxiliary top plate 40 is used to reflect the laser emitted by the laser rangefinder. This auxiliary fixture provides high distance measurement efficiency and improves measurement accuracy.

[0089] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An auxiliary fixture for a laser rangefinder, characterized in that, The auxiliary fixture for the laser rangefinder includes a fixture body (10) and an auxiliary top plate (40). The fixture body (10) includes a mounting base (100), a snap-fit ​​mechanism (200), and a positioning mechanism (300). The snap-fit ​​mechanism (200) and the positioning mechanism (300) are both connected to the mounting base (100). The snap-fit ​​mechanism (200) is used to snap the laser rangefinder, and the positioning mechanism (300) is used to fix the fixture body (10) to the device under test. The auxiliary top plate (40) is used to reflect the laser emitted by the laser rangefinder.

2. The laser rangefinder auxiliary fixture according to claim 1, characterized in that, The latching mechanism (200) includes a receiving groove (210) and at least two latching parts (220). The receiving groove (210) is disposed on the mounting base (100), and the at least two latching parts (220) are respectively disposed on the two sides of the receiving groove (210). The receiving groove (210) is used to receive the laser rangefinder, and the latching parts (220) are used to limit the laser rangefinder to prevent the laser rangefinder from falling out of the receiving groove (210).

3. The laser rangefinder auxiliary fixture according to claim 1, characterized in that, The mounting base (100) is provided with a plurality of first mounting slots (110) and at least one second mounting slot (120). The first mounting slots (110) are used to install magnets so that the mounting base (100) is magnetically connected to the device under test. The second mounting slots (120) are used to install magnets or are left empty to adjust the magnetic force between the mounting base (100) and the device under test.

4. The laser rangefinder auxiliary fixture according to claim 1, characterized in that, The positioning mechanism (300) includes a positioning part (310) and a clamping part (320). The positioning part (310) includes a positioning base (311), a positioning base plate (312), and a connecting shaft (313). The positioning base (311) is connected to the mounting base (100), and the two ends of the connecting shaft (313) are respectively connected to the positioning base (311) and the positioning base plate (312). The clamping part (320) is rotatably connected to the connecting shaft (313).

5. The laser rangefinder auxiliary fixture according to claim 4, characterized in that, The clamping part (320) includes a positioning claw (321) and a claw extension plate (322). One end of the positioning claw (321) is rotatably connected to the connecting shaft (313), and the other end of the positioning claw (321) is movably connected to the claw extension plate (322) so that the claw extension plate (322) extends or retracts relative to the positioning claw (321).

6. The laser rangefinder auxiliary fixture according to claim 5, characterized in that, The claw extension plate (322) is provided with at least one third mounting groove (3221), which is used to install a magnet so that the claw extension plate (322) is magnetically connected to the device under test.

7. The laser rangefinder auxiliary fixture according to any one of claims 4-6, characterized in that, There are at least two clamping parts (320), and at least two clamping parts (320) are arranged vertically.

8. The laser rangefinder auxiliary fixture according to claim 4, characterized in that, The positioning base plate (312) has a groove (3121) that extends along the length of the positioning base plate (312). The groove (3121) is used to engage with the edge of the device under test to position the positioning base plate (312).

9. The laser rangefinder auxiliary fixture according to claim 1, characterized in that, The auxiliary top plate (40) includes a mounting top plate (410), a positioning top plate (420), and a reflector (430). The two ends of the positioning top plate (420) in the length direction are respectively connected to the mounting top plate (410) and the reflector (430). The mounting top plate (410) is used to connect the device under test, and the reflector (430) is used to receive and reflect the laser emitted by the laser rangefinder. The mounting top plate (410), the positioning top plate (420), and the reflector (430) are all bent structures with a bending angle of 90 degrees. The bending angle of the mounting top plate (410), the positioning top plate (420), and the reflector (430) abuts against the edge line of the device under test to limit the auxiliary top plate (40).

10. The laser rangefinder auxiliary fixture according to claim 9, characterized in that, The mounting top plate (410) is provided with a plurality of fourth mounting slots (411), which are used to install magnets so that the mounting top plate (410) is magnetically connected to the device under test.

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