A three-dimensional accuracy detection device

Abstract

The application relates to the technical field of measuring equipment, in particular to a three-dimensional precision detection device, which comprises a three-dimensional moving platform and a probe, a connecting mechanism is arranged between the three-dimensional moving platform and the probe, and the three-dimensional moving platform is detachably connected with the probe through the connecting mechanism; the connecting mechanism comprises a shell, a mounting sliding plate, a first elastic piece, a limiting assembly, a transmission assembly and a switch assembly; the shell is fixedly connected at the output end of the three-dimensional moving platform, a cavity is arranged in the shell, a mounting hole is formed in the bottom surface of the shell, and the mounting hole is communicated with the cavity; the mounting sliding plate is slidably connected with the inner wall of the cavity; the first elastic piece is arranged between the mounting sliding plate and the inner top wall of the cavity; the transmission assembly and the limiting assembly are both arranged in the cavity; the mounting sliding plate drives the limiting assembly to move through the transmission assembly, so that the limiting assembly is connected with the mounting sliding plate and the probe; and the switch assembly is arranged in the cavity and used for limiting the sliding of the mounting sliding plate. The application has the effect of conveniently replacing the probe.

Description

Technical Field

[0001] This application relates to the field of measuring equipment technology, and in particular to a three-dimensional accuracy detection device. Background Technology

[0002] A coordinate measuring machine (CMM) is an instrument capable of measuring geometric shapes, lengths, and circumferential divisions within a six-sided spatial area. It is also known as a coordinate measuring machine or a three-dimensional precision inspection device. A CMM can also be defined as "an instrument with a detector that can move in three directions on three mutually perpendicular guide rails. This detector transmits signals in a contact or non-contact manner. The displacement measurement system of the three axes (such as an optical encoder) calculates the x, y, z points of the workpiece and various functional measurements using a data processor or computer."

[0003] The three-dimensional precision testing device in the related technology includes a three-dimensional moving platform and a probe. The probe is fixedly connected to the output end of the three-dimensional moving platform. The three-dimensional moving platform drives the probe to move, so that the probe comes into contact with the outer surface of the product to be tested, thereby measuring the geometric shape and length parameters of the product to be tested.

[0004] Regarding the aforementioned technologies, the probe is fixedly connected to the output end of the 3D moving platform, typically using bolts. When the probe is damaged, it requires repeatedly tightening the bolts to remove it, making the process of replacing the probe quite cumbersome. Summary of the Invention

[0005] The purpose of this application is to provide a three-dimensional accuracy detection device for convenient probe replacement.

[0006] The three-dimensional accuracy detection device provided in this application adopts the following technical solution:

[0007] A three-dimensional accuracy detection device includes a three-dimensional moving platform and a probe. A connecting mechanism is provided between the three-dimensional moving platform and the probe, and the three-dimensional moving platform is detachably connected to the probe through the connecting mechanism.

[0008] The connecting mechanism includes a housing, a mounting plate, a first elastic element, a limiting component, a transmission component, and a switch component;

[0009] The outer shell is fixedly connected to the output end of the three-dimensional moving platform. The outer shell has a cavity that can accommodate the mounting slide, the first elastic element, the limiting component, the transmission component and the switch component. The bottom surface of the outer shell has a mounting hole for inserting the probe, and the mounting hole communicates with the cavity.

[0010] The mounting plate is disposed inside the cavity and is slidably connected to the inner wall of the cavity;

[0011] The first elastic element is disposed between the mounting slide plate and the inner top wall of the cavity. One end of the first elastic element is fixedly connected to the mounting slide plate, and the other end of the first elastic element is fixedly connected to the inner top wall of the cavity.

[0012] Both the transmission component and the limiting component are disposed within the cavity. The mounting slide plate drives the limiting component to move through the transmission component, so that the limiting component connects the mounting slide plate and the probe.

[0013] The switch assembly is disposed within the cavity to restrict the sliding of the mounting slide plate.

[0014] By adopting the above technical solution, inserting the probe moves the mounting slide, which in turn moves the limiting component through the transmission component, thus fixing the probe. Compared to tightening bolts to install and remove the probe, this solution makes the installation and removal process much simpler.

[0015] Optionally, the probe includes a mounting part and a sensing part, the sensing part is fixedly connected to the mounting part, and the top surface of the mounting part has an insertion hole;

[0016] A pin is fixedly connected to the mounting plate, and the pin is adapted to the socket.

[0017] The limiting component includes a limiting post and a limiting hole formed on the side of the mounting portion, wherein the limiting post cooperates with the limiting hole;

[0018] The mounting slide plate drives the limiting post to be inserted into the limiting hole via the transmission assembly.

[0019] By adopting the above technical solution, when installing the probe, the installation slide is moved by driving it, so that the limiting post is inserted into the limiting hole, thereby simplifying the process of installing and disassembling the probe and making it convenient to replace the probe.

[0020] Optionally, the transmission assembly includes a first slider, a second slider, a connecting rod, and a first slide rail;

[0021] The first slide rail is L-shaped and is fixedly connected to the mounting plate.

[0022] Both the first slider and the second slider are slidably connected to the first slide rail. The first slider and the second slider are arranged perpendicular to each other. The first slider slides in the vertical direction of the first slide rail, and the second slider slides in the horizontal direction of the first slide rail. The first slider is connected to the inner sidewall of the cavity.

[0023] One end of the connecting rod is hinged to the first slider, and the other end of the connecting rod is hinged to the second slider;

[0024] The limiting post is fixedly connected to the second slider, and the limiting post is made of a telescopic rod.

[0025] By adopting the above technical solution, during the process of pushing the installation slide plate to move, the first slide rail moves upward, thereby causing the first slider to move downward relative to the first slide rail. This, in turn, causes the connecting rod to push the second slider to move closer to the limiting hole, so that the limiting post is inserted into the limiting hole, thereby completing the installation of the probe. The installation process is convenient and quick, and it is easy to replace the probe.

[0026] Optionally, the transmission assembly further includes a second slide rail. The first slide rail and the second slide rail are symmetrically arranged. The first slider and the second slider are both disposed between the first slide rail and the second slide rail. The first slider and the second slider are both slidably connected to the second slide rail. The second slide rail is fixedly connected to the mounting plate.

[0027] By adopting the above technical solution, the first slider and the second slider are sandwiched in the middle by the first slide rail and the second slide rail, thereby increasing the installation stability of the first slider and the second slider and reducing the possibility of the first slider and the second slider disengaging from the first slide rail during use.

[0028] Optionally, the switch assembly includes a fixing block, a second elastic element, a telescopic element, and a guide portion;

[0029] One end of the telescopic component is fixedly connected to the inner wall of the cavity, and the other end of the telescopic component is fixedly connected to the fixed block;

[0030] The second elastic element is sleeved on the telescopic element, one end of the second elastic element is fixedly connected to the inner sidewall of the cavity, and the other end of the second elastic element is fixedly connected to the fixing block;

[0031] The mounting slide plate has a fixing groove, which is adapted to the fixing block. When the mounting slide plate slides, the fixing block can be inserted into the fixing groove.

[0032] The guide portion is used to disengage the fixing block from the fixing groove.

[0033] By adopting the above technical solution, during the sliding process of the installation slide, the fixing block is inserted into the fixing groove, thereby restricting the sliding of the installation slide and thus completing the fixing of the probe.

[0034] Optionally, the fixing block has a first guide arc surface on the side near the mounting slide.

[0035] By adopting the above technical solution, during the process of installing the sliding plate near the fixing block, the sliding plate comes into contact with the first guide arc surface. This causes the fixing block to move away from the sliding plate under the guidance of the first guide arc surface. Continuing to move the sliding plate, the fixing block is inserted into the fixing groove, thus restricting the sliding plate's movement and securing the probe. The installation process is convenient and quick, facilitating probe replacement.

[0036] Optionally, the inner wall of the cavity is provided with a first annular groove, the first slider is disposed in the first annular groove and slides in the first annular groove, and the side wall of the mounting slide is provided with a disassembly groove, the disassembly groove being positioned corresponding to the fixing groove;

[0037] A sliding strip is fixedly connected to the mounting plate. A second annular groove, a first sliding groove, and a second sliding groove are provided on the inner wall of the cavity. One end of the sliding strip is inserted into the first sliding groove and slides along the length of the first sliding groove.

[0038] Both the first slide groove and the second slide groove are connected to the second annular groove, and the first slide groove is connected to the second slide groove;

[0039] The guide portion includes an arc surface, which is disposed at the opening of the disassembly groove to guide the fixing block.

[0040] By adopting the above technical solution, when it is necessary to disassemble the probe, the probe is moved upward and then rotated, so that the mounting plate is disengaged from the fixing block, and the probe can be moved downward to complete the disassembly of the probe. The disassembly process is simple and quick, and it is convenient to replace the probe.

[0041] Optionally, the guide portion further includes a second guide arc surface, which is disposed on the side of the fixing block near the arc surface.

[0042] By adopting the above technical solution, the second guide arc surface comes into contact with the arc surface during the movement of the fixed block, thereby reducing damage to the fixed block and the mounting plate.

[0043] Optionally, a support column is provided between the mounting slide and the top wall of the cavity. The support column is made of a telescopic rod. One end of the support column is rotatably connected to the mounting slide, and the other end of the support column is rotatably connected to the top wall of the cavity. The first elastic element is sleeved on the support column.

[0044] By adopting the above technical solution, the possibility of radial bending of the first elastic element is reduced and the service life of the first elastic element is increased by setting support columns during the contraction and rotation of the first elastic element.

[0045] In summary, this application includes at least one of the following beneficial technical effects:

[0046] 1. By inserting the probe, the mounting slide moves, which in turn moves the limiting component through the transmission component, thus fixing the probe. Compared to tightening bolts to install and remove the probe, this method makes the installation and removal process much simpler.

[0047] 2. When the probe needs to be removed, move the probe upward and then rotate it to disengage the mounting plate from the fixing block, thereby allowing the probe to be moved downward and removed. The removal process is simple and quick, making it easy to replace the probe.

[0048] 3. During the contraction and rotation of the first elastic element, the presence of support columns reduces the possibility of radial bending of the first elastic element and increases its service life. Attached Figure Description

[0049] Figure 1 This is a schematic diagram of the overall structure of a three-dimensional accuracy detection device according to an embodiment of this application.

[0050] Figure 2 This is a cross-sectional view of the connection mechanism in an embodiment of this application.

[0051] Figure 3 This is a cross-sectional view of the connection mechanism in an embodiment of this application from another perspective.

[0052] Figure 4 This is a partial schematic diagram illustrating the structure of the switch assembly in an embodiment of this application.

[0053] Figure 5 This is a schematic diagram of the structure of the fixing block in an embodiment of this application.

[0054] In the diagram, 1. A three-dimensional mobile platform;

[0055] 2. Probe; 21. Mounting part; 211. Socket; 22. Sensing part;

[0056] 3. Connecting mechanism; 31. Housing; 311. Cavity; 3111. First annular groove; 3112. Second annular groove; 3113. First sliding groove; 3114. Second sliding groove; 312. Mounting hole;

[0057] 32. Install the sliding plate; 321. Support column; 322. Insert column; 323. Bracket; 324. Sliding bar; 325. Fixing groove; 326. Removal groove;

[0058] 33. First elastic element;

[0059] 34. Limiting component; 341. Limiting post; 342. Limiting hole;

[0060] 35. Transmission assembly; 351. First slider; 352. Second slider; 353. First slide rail; 354. Second slide rail; 355. Connecting rod;

[0061] 36. Switch assembly; 361. Fixing block; 3611. First guide arc surface; 362. Second elastic element; 363. Telescopic element; 364. Guide part; 3641. Second guide arc surface; 3642. Arc surface. Detailed Implementation

[0062] The following is in conjunction with the appendix Figure 1 -Appendix Figure 5 This application will be described in further detail below.

[0063] A three-dimensional precision detection device, referring to Figure 1 It includes a three-dimensional moving platform 1 and a probe 2. A connecting mechanism 3 is provided between the three-dimensional moving platform 1 and the probe 2. The three-dimensional moving platform 1 is detachably connected to the probe 2 through the connecting mechanism 3.

[0064] Reference Figure 2 and Figure 3 The connecting mechanism 3 includes a housing 31, a mounting slide 32, a first elastic element 33, a limiting component 34, a transmission component 35, and a switch component 36. The housing 31 is cuboid and fixedly connected to the output end of the three-dimensional moving platform 1. The housing 31 has a cavity 311 that can accommodate the mounting slide 32, the first elastic element 33, the limiting component 34, the transmission component 35, and the switch component 36. The cavity 311 is cylindrical. The bottom surface of the housing 31 has a mounting hole 312 for the probe 2 to be inserted. The mounting hole 312 communicates with the cavity 311.

[0065] The mounting slide plate 32 is disposed in the cavity 311 and is slidably connected to the inner wall of the cavity 311; the first elastic element 33 is disposed between the mounting slide plate 32 and the inner top wall of the cavity 311. As a preferred embodiment of this embodiment, the first elastic element 33 is a spring, one end of the first elastic element 33 is fixedly connected to the mounting slide plate 32, and the other end of the first elastic element 33 is fixedly connected to the inner top wall of the cavity 311.

[0066] A support column 321 is provided between the mounting slide plate 32 and the inner top wall of the cavity 311. The support column 321 is made of a telescopic rod. One end of the support column 321 is rotatably connected to the mounting slide plate 32, and the other end of the support column 321 is rotatably connected to the inner top wall of the cavity 311. The first elastic element 33 is sleeved on the support column 321.

[0067] Both the transmission assembly 35 and the limiting assembly 34 are located in the cavity 311. The mounting slide 32 drives the limiting assembly 34 to move through the transmission assembly 35, so that the limiting assembly 34 connects the mounting slide 32 and the probe 2. The switch assembly 36 is located in the cavity 311 to limit the sliding of the mounting slide 32.

[0068] When probe 2 needs to be replaced, turn on switch assembly 36 to allow mounting slide plate 32 to slide. Then slide mounting slide plate 32 downwards, causing it to move through transmission assembly 35 and limit assembly 34, thereby disengaging probe 2 from mounting slide plate 32 and removing probe 2. Take out the new probe 2, insert it into mounting hole 312, and abut it against mounting slide plate 32. This causes probe 2 to move mounting slide plate 32, compressing the first elastic element 33 and support column 321. During the sliding process, mounting slide plate 32 moves through transmission assembly 35 and limit assembly 34, thus fixing probe 2 to mounting slide plate 32. Finally, turn off switch assembly 36 to restrict the movement of mounting slide plate 32, completing the replacement of probe 2.

[0069] Reference Figure 2 and Figure 3 The probe 2 includes a mounting part 21 and a sensing part 22. The sensing part 22 is fixedly connected to the mounting part 21, and the top surface of the mounting part 21 has an insertion hole 211. An insertion post 322 is fixedly connected to the mounting slide plate 32, and the insertion post 322 is adapted to the insertion hole 211. The limiting component 34 includes a limiting post 341 and a limiting hole 342 opened on the side of the mounting part 21, and the limiting post 341 cooperates with the limiting hole 342. The mounting slide plate 32 drives the limiting post 341 to be inserted into the limiting hole 342 through the transmission component 35. As a preferred embodiment of this application, there are two limiting posts 341 and two limiting holes 342. The two limiting posts 341 are symmetrically arranged about the central axis of the insertion post 322, and the positions of the two limiting holes 342 correspond one-to-one with the positions of the two limiting posts 341.

[0070] When installing probe 2, insert mounting part 21 into mounting hole 312, so that insertion post 322 is inserted into insertion hole 211, thereby fixing probe 2 and mounting slide plate 32 in relative position. Push probe 2, thereby driving mounting slide plate 32 to slide. During the process of mounting slide plate 32 sliding vertically upward, transmission component 35 drives limiting post 341 to slide, so that limiting post 341 is inserted into corresponding limiting hole 342, thereby fixing mounting slide plate 32 and probe 2 to each other.

[0071] Reference Figure 3The transmission assembly 35 includes a first slider 351, a second slider 352, a connecting rod 355, a first slide rail 353, and a second slide rail 354. A bracket 323 is fixedly connected to the top surface of the mounting slide plate 32. There are two brackets 323, symmetrically arranged. Both the first slide rail 353 and the second slide rail 354 are L-shaped and symmetrically arranged. Both the first slide rail 353 and the second slide rail 354 are fixedly connected to the mounting slide plate 32 via the brackets 323. In a preferred embodiment of this application, there are two transmission assemblies 35, symmetrically arranged and corresponding one-to-one with the positions of the two limiting posts 341.

[0072] The first slider 351 and the second slider 352 are both I-shaped. The middle parts of the first slider 351 and the second slider 352 are sandwiched between the first slide rail 353 and the second slide rail 354. The first slider 351 and the second slider 352 are slidably connected to the first slide rail 353 and the second slider 352 are slidably connected to the second slide rail 354. The first slider 351 and the second slider 352 are set perpendicular to each other. The first slider 351 slides vertically in the first slide rail 353 and the second slider 352 slides horizontally in the first slide rail 353. A first annular groove 3111 is opened in the inner wall of the cavity 311. The first slider 351 is set in the first annular groove 3111 and slides in the first annular groove 3111.

[0073] One end of the connecting rod 355 is hinged to the first slider 351, and the other end of the connecting rod 355 is hinged to the second slider 352; the limiting post 341 is fixedly connected to the second slider 352, and the limiting post 341 is set towards the limiting hole 342. The limiting post 341 is made of a telescopic rod.

[0074] During the installation of probe 2, probe 2 is inserted into mounting hole 312 and abuts against mounting slide plate 32. Probe 2 is pushed, causing mounting slide plate 32 to slide upward, thereby causing first slide rail 353 and second slide rail 354 to slide upward. First slider 351 is fixed on inner wall of cavity 311. Then, first slider 351 slides downward relative to first slide rail 353 and second slide rail 354, thereby causing one end of connecting rod 355 to slide downward relative to first slide rail 353 and second slide rail 354. Then, the other end of connecting rod 355 pushes second slider 352 to move closer to limiting hole 342, thereby causing limiting post 341 to be inserted into limiting hole 342, thus fixing probe 2 relative to mounting slide plate 32.

[0075] Reference Figure 2 and Figure 3The inner wall of the cavity 311 is provided with a second annular groove 3112, a first sliding groove 3113 and a second sliding groove 3114. The first sliding groove 3113 and the second sliding groove 3114 are interconnected and are both connected to the second annular groove 3112. The length directions of the first sliding groove 3113 and the second sliding groove 3114 are parallel. A sliding strip 324 is fixedly connected to the mounting slide plate 32. The end of the sliding strip 324 away from the mounting slide plate 32 is inserted into the first sliding groove 3113 and is slidably connected to the first sliding groove 3113. The mounting slide plate 32 is slidably connected to the outer shell 31 through the sliding strip 324.

[0076] Reference Figure 3 and Figure 4 The switch assembly 36 includes a fixing block 361, a second elastic member 362, a telescopic member 363, and a guide portion 364. In a preferred embodiment of this application, the telescopic member 363 is a telescopic rod, the second elastic member 362 is a spring, one end of the telescopic member 363 is fixedly connected to the inner wall of the cavity 311, and the other end of the telescopic member 363 is fixedly connected to the fixing block 361; the second elastic member 362 is sleeved on the telescopic member 363, one end of the second elastic member 362 is fixedly connected to the inner wall of the cavity 311, and the other end of the second elastic member 362 is fixedly connected to the fixing block 361.

[0077] Reference Figure 4 The mounting slide plate 32 has a fixing groove 325, which is adapted to the fixing block 361. When the mounting slide plate 32 slides, the fixing block 361 can be inserted into the fixing groove 325. The guide part 364 is used to disengage the fixing block 361 from the fixing groove 325. The side wall of the mounting slide plate 32 has a disassembly groove 326, which corresponds to the fixing groove 325. The fixing block 361 can slide from the fixing groove 325 into the disassembly groove 326.

[0078] Reference Figure 5 The fixing block 361 has a first guide arc surface 3611 on the side near the mounting slide plate 32. The guide part 364 includes a second guide arc surface 3641 and an arc surface 3642. The arc surface 3642 is located at the opening of the disassembly groove 326 to guide the fixing block 361, and the second guide arc surface 3641 is located on the side of the fixing block 361 near the arc surface 3642. Both the insertion hole 211 and the insertion post 322 are prismatic.

[0079] During the upward sliding of the mounting slide plate 32, the first guide arc surface 3611 contacts the mounting slide plate 32. Under the guidance of the first guide inclined surface, the fixing block 361 moves away from the mounting slide plate 32 until the fixing block 361 contacts the side wall of the mounting slide plate 32. The probe 2 is then pushed to continue moving the mounting slide plate 32 upward, thereby inserting the fixing block 361 into the fixing groove 325, thus restricting the sliding of the mounting slide plate 32.

[0080] When probe 2 needs to be disassembled, first push probe 2 upwards, causing the fixing block 361 to slide from the fixing groove 325 into the disassembly groove 326. At this time, the sliding strip 324 slides from the first sliding groove 3113 into the second annular groove 3112. Rotate probe 2, thereby driving the mounting slide plate 32 and the transmission assembly 35 to rotate, which in turn causes the sliding strip 324 to slide in the second annular groove 3112, and the first slider 351 to slide in the first annular groove 3111. This causes the second guide arc surface 3641 to contact the arc surface 3642, and the fixing block 361 to move away from the disassembly groove 326 under the guidance of the second guide arc surface 3641 and the arc surface 3642, thereby disengaging the fixing block 361 from the disassembly groove 326. At this time, the first elastic element 33 is twisted.

[0081] At this point, the sliding bar 324 slides to the point where the second annular groove 3112 and the second sliding groove 3114 connect, pulling the probe 2 downwards, thereby causing the mounting slide plate 32 to slide downwards, and then causing the sliding bar 324 to slide into the second sliding groove 3114. During the sliding of the sliding bar 324 within the second sliding groove 3114, the limiting post 341 gradually moves away from the limiting hole 342. When the limiting post 341 disengages from the limiting hole 342, the sliding bar 324 slides to the point where the second sliding groove 3114 connects to the first sliding groove 3113. At this point, the probe 2 is released, the first elastic element 33 returns to its original position, thereby causing the mounting slide plate 32 to rotate, causing the sliding bar 324 to slide from the second sliding groove 3114 into the first sliding groove 3113, and the first slider 351 returns to its original position. This completes the disassembly of the probe 2.

[0082] The implementation principle of this application embodiment is as follows: When it is necessary to replace the probe 2, push the probe 2 upward, thereby causing the mounting slide plate 32 to slide upward, so that the sliding strip 324 slides along the length direction of the first slide groove 3113. When the fixing block 361 slides from the fixing groove 325 into the disassembly groove 326, the sliding strip 324 slides into the second annular groove 3112. Then rotate the probe 2, causing the mounting slide plate 32 to rotate, thereby causing the sliding strip 324 to slide in the second annular groove 3112, and causing the first slider 351 to slide in the first annular groove 3111.

[0083] As the mounting slide plate 32 rotates, the fixing block 361, guided by the second guide arc surface 3641 and the arc surface 3642, moves away from the disassembly groove 326, causing the fixing block 361 to disengage from the disassembly groove 326. At this time, the sliding bar 324 rotates to the connection point between the second slide groove 3114 and the second annular groove 3112. Then, the probe 2 is pulled, causing the mounting slide plate 32 to move downwards, allowing the sliding bar 324 to slide into the second slide groove 3114. At this time, the mounting slide plate 32 drives the first slide rail 353 and the second slide rail 354 to move downwards, causing the first slider 351 to move downwards. The first slide rail 353 and the second slide rail 354 move upward relative to each other, thereby driving the second slider 352 to move away from the limiting hole 342 through the connecting rod 355, so that the limiting post 341 disengages from the limiting hole 342, and the probe 2 is removed. At this time, the sliding bar 324 is located at the connection between the first slide groove 3113 and the second slide groove 3114. The probe 2 is released, the first elastic element 33 returns to its original state, and drives the mounting slide plate 32 to rotate, so that the sliding bar 324 slides from the second slide groove 3114 to the first slide groove 3113, thereby completing the disassembly process of the probe 2.

[0084] When installing the new probe 2, the mounting part 21 is inserted into the mounting hole 312, and the insertion post 322 is inserted into the insertion hole 211. This pushes the mounting slide plate 32 to slide upward, so that the sliding strip 324 slides along the length direction of the first slide groove 3113. During the upward sliding of the mounting slide plate 32, the first slide rail 353 and the second slide rail 354 are driven to slide upward, so that the connecting rod 355 pushes the second slider 352 to move towards the limiting hole 342, so that the limiting post 341 is inserted into the limiting hole 342, thereby fixing the probe 2 relative to the mounting slide plate 32.

[0085] During the sliding process of the mounting plate 32, the first guide arc surface 3611 contacts the mounting plate 32, and the fixing block 361 moves away from the mounting plate 32 under the guidance of the first guide arc surface 3611, continuing to push the mounting plate 32, so that the fixing block 361 is inserted into the fixing groove 325, thereby restricting the fixing of the mounting plate 32.

[0086] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A three-dimensional precision detection device, comprising a three-dimensional moving platform (1) and a probe (2), characterized in that, A connecting mechanism (3) is provided between the three-dimensional moving platform (1) and the probe (2), and the three-dimensional moving platform (1) is detachably connected to the probe (2) through the connecting mechanism (3); The connecting mechanism (3) includes a housing (31), a mounting plate (32), a first elastic element (33), a limiting component (34), a transmission component (35), and a switch component (36). The outer shell (31) is fixedly connected to the output end of the three-dimensional moving platform (1). The outer shell (31) is provided with a cavity (311) that can accommodate the mounting slide (32), the first elastic element (33), the limiting component (34), the transmission component (35) and the switch component (36). The bottom surface of the outer shell (31) is provided with a mounting hole (312) for the probe (2) to be inserted. The mounting hole (312) communicates with the cavity (311). The mounting plate (32) is disposed inside the cavity (311) and is slidably connected to the inner wall of the cavity (311); The first elastic element (33) is disposed between the mounting slide plate (32) and the inner top wall of the cavity (311). One end of the first elastic element (33) is fixedly connected to the mounting slide plate (32), and the other end of the first elastic element (33) is fixedly connected to the inner top wall of the cavity (311). The transmission assembly (35) and the limiting assembly (34) are both disposed in the cavity (311). The mounting slide (32) drives the limiting assembly (34) to move through the transmission assembly (35), so that the limiting assembly (34) connects the mounting slide (32) and the probe (2). The switch assembly (36) is disposed in the cavity (311) to restrict the sliding of the mounting slide plate (32); the probe (2) includes a mounting part (21) and a sensing part (22), the sensing part (22) is fixedly connected to the mounting part (21), and the mounting part (21) has an insertion hole (211) on its top surface. A pin (322) is fixedly connected to the mounting plate (32), and the pin (322) is adapted to the socket (211); The limiting component (34) includes a limiting post (341) and a limiting hole (342) formed on the side of the mounting part (21), wherein the limiting post (341) cooperates with the limiting hole (342); The mounting plate (32) drives the limiting post (341) to be inserted into the limiting hole (342) through the transmission assembly (35); The transmission assembly (35) includes a first slider (351), a second slider (352), a connecting rod (355), and a first slide rail (353). The first slide rail (353) is L-shaped and is fixedly connected to the mounting plate (32); The first slider (351) and the second slider (352) are both slidably connected to the first slide rail (353). The first slider (351) and the second slider (352) are arranged perpendicular to each other. The first slider (351) slides vertically in the first slide rail (353), and the second slider (352) slides horizontally in the first slide rail (353). The first slider (351) is connected to the inner wall of the cavity (311). One end of the connecting rod (355) is hinged to the first slider (351), and the other end of the connecting rod (355) is hinged to the second slider (352); The limiting post (341) is fixedly connected to the second slider (352), and the limiting post (341) is made of a telescopic rod.

2. The three-dimensional accuracy detection device according to claim 1, characterized in that, The transmission assembly (35) further includes a second slide rail (354). The first slide rail (353) and the second slide rail (354) are symmetrically arranged. The first slider (351) and the second slider (352) are both arranged between the first slide rail (353) and the second slide rail (354). The first slider (351) and the second slider (352) are both slidably connected to the second slide rail (354). The second slide rail (354) is fixedly connected to the mounting plate (32).

3. The three-dimensional accuracy detection device according to claim 2, characterized in that, The switch assembly (36) includes a fixing block (361), a second elastic member (362), a telescopic member (363), and a guide (364). One end of the telescopic component (363) is fixedly connected to the inner wall of the cavity (311), and the other end of the telescopic component (363) is fixedly connected to the fixing block (361). The second elastic element (362) is sleeved on the telescopic element (363). One end of the second elastic element (362) is fixedly connected to the inner wall of the cavity (311), and the other end of the second elastic element (362) is fixedly connected to the fixing block (361). The mounting slide plate (32) has a fixing groove (325) that is adapted to the fixing block (361). When the mounting slide plate (32) slides, the fixing block (361) can be inserted into the fixing groove (325). The guide portion (364) is used to disengage the fixing block (361) from the fixing groove (325).

4. The three-dimensional accuracy detection device according to claim 3, characterized in that, The fixing block (361) has a first guide arc surface (3611) on the side near the mounting slide plate (32).

5. A three-dimensional accuracy detection device according to claim 3 or 4, characterized in that, The cavity (311) has a first annular groove (3111) on its inner wall. The first slider (351) is disposed in the first annular groove (3111) and slides in the first annular groove (3111). The mounting slide plate (32) has a disassembly groove (326) on its side wall. The disassembly groove (326) corresponds to the position of the fixing groove (325). A sliding strip (324) is fixedly connected to the mounting slide plate (32). A second annular groove (3112), a first sliding groove (3113), and a second sliding groove (3114) are provided on the inner wall of the cavity (311). One end of the sliding strip (324) is inserted into the first sliding groove (3113) and slides along the length direction of the first sliding groove (3113). The first slide groove (3113) and the second slide groove (3114) are both connected to the second annular groove (3112), and the first slide groove (3113) is connected to the second slide groove (3114); The guide part (364) includes an arc surface (3642), which is disposed at the opening of the disassembly groove (326) for guiding the fixing block (361).

6. A three-dimensional accuracy detection device according to claim 5, characterized in that, The guide portion (364) further includes a second guide arc surface (3641), which is disposed on the side of the fixing block (361) near the arc surface (3642).

7. A three-dimensional accuracy detection device according to claim 1, characterized in that, A support column (321) is provided between the mounting slide plate (32) and the inner top wall of the cavity (311). The support column (321) is made of a telescopic rod. One end of the support column (321) is rotatably connected to the mounting slide plate (32), and the other end of the support column (321) is rotatably connected to the inner top wall of the cavity (311). The first elastic element (33) is sleeved on the support column (321).

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