Probe detection tool

Abstract

The invention relates to the technical field of three-coordinate measurement, in particular to a probe detection tool which comprises a tool plate, and the tool plate is composed of a base, an adjusting plate rotationally installed on the upper surface of the base through a hinge, an avoiding groove formed in the surface of the adjusting plate and a locking mechanism arranged between the base and the adjusting plate. The locking mechanism comprises supporting rods rotationally mounted on the two side faces of the base correspondingly, strip-shaped grooves formed in the surfaces of the supporting rods, locking bolts slidably matched with the inner walls of the strip-shaped grooves, and mounting holes formed in the inner walls of the receding grooves. According to the probe detection tool, the plane on the part is attached to the interior of the avoiding groove, and then the bolt matched with the bolt hole in the part penetrates through the mounting hole and is screwed into the bolt hole in the part, so that the plane of the part can be fixed in the avoiding groove; at the moment, the upper portion and the two sides of the part are exposed in the measuring range of the three-coordinate probe, and therefore the three faces of the part can be measured.

Description

Technical Field

[0001] This application relates to the field of coordinate measuring technology, and in particular to a probe inspection fixture. Background Technology

[0002] A coordinate measuring machine (CMM) is a high-precision three-dimensional measuring device primarily used to acquire data on the geometry, dimensions, and position of objects. Employing advanced mechanical structures and measurement technologies, CMMs can achieve micron-level precision measurements, far exceeding the accuracy of traditional tools such as calipers and micrometers. For example, in mechanical manufacturing, it can accurately detect geometric tolerances such as cylindricity, perpendicularity, and flatness of parts, ensuring that products meet design requirements. With its high precision, high efficiency, and multifunctionality, the CMM has become a core tool for quality control in modern manufacturing, particularly suitable for fields with high precision and complexity requirements.

[0003] Coordinate measuring machine (CMM) probes play a crucial role in inspecting complex curved surfaces and geometric tolerances. Their core functions include high-precision data acquisition, adaptive measurement, and automated control. Currently, common CMM probe inspection equipment requires finding planar or symmetrical features on the workpiece for support using V-blocks or pads to prevent tilting and movement during inspection. However, when dealing with irregular workpieces and multi-point coordinate measurements, interference between the placement surface and the measurement surface often arises. This necessitates multiple fixations and partial probe measurements, leading to low inspection efficiency and potentially unnecessary errors.

[0004] Therefore, this application provides a probe detection fixture. Summary of the Invention

[0005] The purpose of this application is to solve at least one technical problem raised in the background art.

[0006] This application provides a probe detection fixture, including a fixture plate. The fixture plate consists of a base, an adjusting plate rotatably mounted on the upper surface of the base via a hinge, a clearance groove on the surface of the adjusting plate, and a locking mechanism disposed between the base and the adjusting plate. The locking mechanism includes support rods rotatably mounted on both sides of the base, strip grooves on the surface of the support rods, locking bolts slidably fitted on the inner wall of the strip grooves, mounting holes on the inner wall of the clearance grooves, and threaded blind holes on both sides of the adjusting plate that are adapted to the locking bolts. The base is configured as an I-beam shape, and mounting holes are provided on the surface of the base.

[0007] By adopting the above technical solution, the flat surface of the part is fitted into the relief groove. Then, a bolt that matches the threaded hole position on the part is passed through the mounting hole and screwed into the threaded hole position on the part, thereby fixing the flat surface of the part in the relief groove. At this time, the top and sides of the part are exposed within the measurement range of the coordinate measuring machine, so that the three surfaces of the part can be measured.

[0008] Preferably, the upper surface of the adjusting plate is provided with an inner hole clamping mechanism. The inner hole clamping mechanism includes an L-shaped curved plate fixedly installed on the upper surface of the adjusting plate by bolts, a rotating cylinder rotatably installed on the right end of the L-shaped curved plate by bearings, a first mounting cavity and a second mounting cavity respectively opened inside the rotating cylinder, a clamping component disposed inside the first mounting cavity, a driving component disposed inside the second mounting cavity for driving the clamping component to move, and a fixing component disposed on the right side of the L-shaped curved plate for fixing the rotating cylinder.

[0009] Preferably, the fixing component includes a mounting plate fixedly installed on the right side of the L-shaped curved plate, a fixing bolt threaded to the surface of the mounting plate, and a threaded hole on the outer surface of the rotating cylinder that is compatible with the fixing bolt.

[0010] By adopting the above technical solution, the fixing bolts are screwed into the threaded holes on the rotating cylinder, thereby using the fixing bolts and mounting plate to fix the rotating cylinder and prevent it from rotating.

[0011] Preferably, the clamping component includes three track grooves arranged in a circumferential array on the right end of the rotating cylinder, sliders that slide and fit into the inner walls of the three track grooves respectively, a clamping plate fixedly installed on the right end of the sliders, a rotating disk rotatably installed inside the first mounting cavity, and a planar thread fixedly installed on the right end of the rotating disk. The slider has a threaded groove on the side near the planar thread that is helically driven with the planar thread. The track grooves are interconnected with the first mounting cavity, and the surface of the clamping plate is provided with an anti-slip rubber pad.

[0012] By adopting the above technical solution, the slider can guide the movement trajectory of the slider by sliding on the inner wall of the track groove. When the rotating disk rotates, it will drive the planar thread to rotate synchronously. By using the helical transmission between the planar thread and the thread groove on the slider, the three sliders can be driven to move closer or further away from each other synchronously along the inner wall of the track groove, so as to clamp parts with internal holes.

[0013] Preferably, the driving component includes a connecting shaft rotatably mounted on the inner wall of the second mounting cavity, a first spur gear and a ratchet respectively fixedly mounted on the surface of the connecting shaft, a motor fixedly mounted on the right end of the L-shaped curved plate, a second spur gear fixedly mounted on the output end of the motor, and a limiting component disposed inside the rotating cylinder, wherein the first spur gear and the second spur gear mesh and transmit power.

[0014] By adopting the above technical solution, the drive motor can drive the second spur gear to rotate, and the second spur gear meshes with the first spur gear to drive the connecting shaft to rotate.

[0015] Preferably, the limiting component includes a through hole formed on the surface of the rotating cylinder, a pull bolt that slides in the inner wall of the through hole, and a ratchet tooth fixedly installed at the lower end of the pull bolt to limit the clockwise rotation of the ratchet.

[0016] Preferably, a baffle is fixedly installed on the surface of the pull bolt, and a return spring is sleeved on the surface of the pull bolt, with the two ends of the return spring abutting against the upper end of the baffle and the inner wall of the rotating cylinder, respectively.

[0017] By adopting the above technical solution, the return spring can drive the ratchet to insert into the tooth groove of the ratchet in the initial state, which can prevent the ratchet from rotating clockwise. When the return spring is pulled, the ratchet will disengage from the tooth groove on the ratchet, and the ratchet will resume clockwise rotation.

[0018] Preferably, a circular hole is provided at the center of the first mounting cavity, the circular hole is connected to the second mounting cavity, and the right end of the connecting shaft passes through the circular hole and is fixedly connected to the left end of the rotating disk.

[0019] By adopting the above technical solution, when the ratchet is inserted into the tooth groove on the ratchet, the drive motor drives the connecting shaft to rotate counterclockwise. This, in turn, drives the ratchet to rotate counterclockwise, causing the clamps on the three sliders to hold the inner hole of the part. When the motor drives the connecting shaft to rotate clockwise, the ratchet restricts the ratchet's rotation. Then, the fixing bolt is unscrewed from the threaded hole on the rotating cylinder. When the connecting shaft rotates clockwise, the ratchet transmits rotational force to the rotating cylinder. The rotating cylinder, now freed from the fixing bolt, can rotate with the connecting shaft, thus... The rotating cylinder and the parts on the clamping components rotate, allowing the four sides of the parts to be rotated without secondary assembly. When the parts need to be removed from the clamping components, the fixing bolts are screwed into the threaded holes on the rotating cylinder. Then, the pull bolt is pulled to disengage the ratchet from the tooth grooves on the ratchet wheel. At this time, the ratchet wheel resumes clockwise rotation. Then, the drive motor can drive the connecting shaft to rotate clockwise. After the connecting shaft rotates clockwise, it can drive the rotating disk to rotate clockwise, thereby driving the three sliders to retract synchronously and disengage from the clamping of the inner hole of the parts.

[0020] Preferably, the upper surface of the adjusting plate is provided with a support mechanism, the support mechanism including a threaded rod, an internal threaded cylinder fixedly installed at the upper end of the threaded rod, a conical block threaded to the inner wall of the threaded cylinder, and an adjusting nut and a locking nut respectively threaded to the surface of the threaded rod.

[0021] Preferably, the upper surface of the adjusting plate is provided with a plurality of bolt holes at equal intervals, the bolt holes allowing the threaded rod to pass through, and the bolt holes extending to the lower surface of the adjusting plate.

[0022] By adopting the above technical solution, the locking nut is unscrewed from the threaded rod. Then, according to the shape of the part, the threaded rod is inserted into the corresponding bolt hole. After that, the locking nut is screwed into the threaded rod from below the adjusting plate. After tightening the locking nut and the adjusting nut, the threaded rod can be fixed. Thus, the conical block or the threaded cylinder can be used to support parts with a small number of flat surfaces using the conical block or by removing the conical block. Furthermore, by changing the height of the adjusting nut on the threaded rod, the height of the conical block can be changed, allowing the height of the conical block to be adjusted according to the shape of the part.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The probe inspection fixture described in this application sets a fixture plate to fit the flat surface of the part into the relief groove. Then, a bolt that matches the threaded hole position on the part passes through the mounting hole and is screwed into the threaded hole position on the part, thereby fixing the flat surface of the part into the relief groove. At this time, the top and sides of the part are exposed within the measurement range of the coordinate measuring machine probe, so that the three surfaces of the part can be measured.

[0025] 2. The probe inspection fixture described in this application, by setting an inner hole clamping mechanism, places a part with an inner hole onto the surface of three clamping plates, and then drives the rotating disk to rotate counterclockwise. Utilizing the helical transmission between the planar thread and the threaded groove on the slider, the three sliders can be driven synchronously along the inner wall of the track groove, thereby clamping the part with the inner hole. Then, the fixing bolt is unscrewed from the threaded hole on the rotating cylinder. At this time, the driving connecting shaft rotates clockwise, and the ratchet can transmit the rotational force to the rotating cylinder, thereby driving the rotating cylinder and the part on the clamping component to rotate. Thus, the four sides of the part can be inspected through the rotation of the part, without the need for secondary assembly of the part.

[0026] 3. The probe inspection fixture described in this application involves unscrewing a locking nut onto a threaded rod, then inserting the threaded rod into the corresponding bolt hole according to the shape of the part, then screwing the locking nut onto the threaded rod from below the adjusting plate, and finally tightening the locking nut and adjusting nut to fix the threaded rod. This allows the use of a conical block or a threaded cylinder to support parts with a small number of flat surfaces. By changing the height of the adjusting nut on the threaded rod, the height of the conical block can be changed, allowing the height of the conical block to be adjusted according to the shape of the part. Attached Figure Description

[0027] Figure 1 This is a first three-dimensional structural schematic diagram of Embodiment 1 of this application;

[0028] Figure 2 This is a second three-dimensional structural schematic diagram of Embodiment 1 of this application;

[0029] Figure 3 This is a three-dimensional structural schematic diagram of Embodiment 2 of this application;

[0030] Figure 4 This is a rear cross-sectional view of the inner hole clamping mechanism according to Embodiment 2 of this application;

[0031] Figure 5 yes Figure 4 Enlarged structural diagram at point A in the middle;

[0032] Figure 6 This is a side sectional view of the inner hole clamping mechanism according to Embodiment 2 of this application;

[0033] Figure 7 yes Figure 6 Enlarged structural diagram at point B;

[0034] Figure 8 This is a three-dimensional structural schematic diagram of Embodiment 3 of this application;

[0035] Figure 9 This is a three-dimensional structural diagram of the support mechanism in Embodiment 3 of this application.

[0036] Explanation of reference numerals in the attached drawings: 100, tooling plate; 101, base; 102, hinge; 103, adjusting plate; 104, clearance groove; 105, mounting hole; 106, mounting hole;

[0037] 200. Locking mechanism; 201. Support rod; 202. Strip groove; 203. Locking bolt;

[0038] 300. Internal hole clamping mechanism; 301. L-shaped bent plate; 302. Rotating cylinder; 303. Track groove; 304. Slider; 305. Clamping plate; 306. Rotating disk; 307. Flat thread; 308. Thread groove;

[0039] 400. Drive component; 401. Connecting shaft; 402. First spur gear; 403. Ratchet; 404. Motor; 405. Second spur gear; 406. Pull bolt; 407. Ratchet; 408. Baffle; 409. Return spring;

[0040] 500. Fixing component; 501. Mounting plate; 502. Fixing bolts;

[0041] 600. Support mechanism; 601. Threaded rod; 602. Threaded cylinder; 603. Conical block; 604. Adjusting nut; 605. Locking nut; 606. Bolt hole;

[0042] 700. Part body. Detailed Implementation

[0043] The following combination Figures 1 to 9This application will be described in further detail below.

[0044] Example 1

[0045] Please refer to the following carefully. Figures 1 to 2 A probe detection fixture includes a fixture plate 100, which consists of a base 101, an adjusting plate 103 rotatably mounted on the upper surface of the base 101 via a hinge 102, a clearance groove 104 formed on the surface of the adjusting plate 103, and a locking mechanism 200 disposed between the base 101 and the adjusting plate 103. The locking mechanism 200 includes a support rod 201 rotatably mounted on both sides of the base 101, a strip groove 202 formed on the surface of the support rod 201, a locking bolt 203 slidably fitted on the inner wall of the strip groove 202, a mounting hole 106 formed on the inner wall of the clearance groove 104, and threaded blind holes formed on both sides of the adjusting plate 103 that are adapted to the locking bolt 203. The base 101 is configured as an I-shape, and mounting holes 105 are formed on the surface of the base 101.

[0046] Specifically, the flat surface of the part is fitted into the relief groove 104, and then a bolt that matches the threaded hole position on the part is passed through the mounting hole 106 and screwed into the threaded hole position on the part, so that the flat surface of the part can be fixed in the relief groove 104. At this time, the top and sides of the part are exposed to the measurement range of the coordinate measuring machine, so that the three surfaces of the part can be measured.

[0047] The working principle of this embodiment is as follows: The operator fixes the base 101 to the measuring equipment through the mounting hole 105, and then places the plane of the part to be measured into the relief groove 104 on the surface of the adjusting plate 103. The design of the relief groove 104 ensures that the part is in close contact with the tooling plate 100, avoiding shaking during the measurement process. Subsequently, a bolt matching the thread hole of the part is selected, passed through the mounting hole 106 on the inner wall of the relief groove 104, and screwed into the thread hole of the part. Through the tightening action of the bolt, the plane of the part is firmly fixed in the relief groove 104, providing a stable foundation for subsequent measurement. After the fixing and locking are completed, the top and sides of the part are completely exposed to the measurement range of the coordinate measuring machine probe. The coordinate measuring machine probe can move along the three coordinate axes X, Y, and Z to perform high-precision measurement on the three surfaces of the part.

[0048] Example 2

[0049] Compared with Embodiment 1, another implementation of this application is as follows:

[0050] Please refer to this carefully. Figure 3 and Figure 4The upper surface of the adjusting plate 103 is provided with an inner hole clamping mechanism 300. The inner hole clamping mechanism 300 includes an L-shaped bent plate 301 fixedly installed on the upper surface of the adjusting plate 103 by bolts, a rotating cylinder 302 rotatably installed on the right end of the L-shaped bent plate 301 by bearings, a first mounting cavity and a second mounting cavity respectively opened inside the rotating cylinder 302, a clamping component set inside the first mounting cavity, a driving component 400 set inside the second mounting cavity for driving the clamping component to move, and a fixing component 500 set on the right side of the L-shaped bent plate 301 for fixing the rotating cylinder 302. The fixing component 500 includes a mounting plate 501 fixedly installed on the right side of the L-shaped bent plate 301, a fixing bolt 502 threadedly connected to the surface of the mounting plate 501, and a threaded hole opened on the outer surface of the rotating cylinder 302 that is adapted to the fixing bolt 502.

[0051] Specifically, the fixing bolt 502 is screwed into the threaded hole on the rotating cylinder 302, so that the rotating cylinder 302 can be fixed by the fixing bolt 502 in conjunction with the mounting plate 501 to prevent the rotating cylinder 302 from rotating.

[0052] Please refer to this carefully. Figures 3 to 5 The clamping component includes three track grooves 303 arranged in a circumferential array on the right end of the rotating cylinder 302, sliders 304 that slide and fit on the inner walls of the three track grooves 303 respectively, a clamping plate 305 fixedly installed on the right end of the slider 304, a rotating disk 306 rotatably installed inside the first mounting cavity, and a flat thread 307 fixedly installed on the right end of the rotating disk 306. The slider 304 has a threaded groove 308 on the side near the flat thread 307 that is helically driven with the flat thread 307. The track grooves 303 are interconnected with the first mounting cavity. The surface of the clamping plate 305 is provided with an anti-slip rubber pad.

[0053] Specifically, the sliding of slider 304 on the inner wall of track groove 303 can guide the movement trajectory of slider 304. When the rotating disk 306 rotates, it will drive the planar thread 307 to rotate synchronously. By using the helical transmission between the planar thread 307 and the threaded groove 308 on slider 304, the three sliders 304 can be driven to move closer or further away from each other synchronously along the inner wall of track groove 303, so as to clamp parts with internal holes.

[0054] Please refer to this carefully. Figure 4 and Figure 6 The drive component 400 includes a connecting shaft 401 rotatably mounted on the inner wall of the second mounting cavity, a first spur gear 402 and a ratchet 403 respectively fixedly mounted on the surface of the connecting shaft 401, a motor 404 fixedly mounted on the right end of the L-shaped curved plate 301, a second spur gear 405 fixedly mounted on the output end of the motor 404, and a limiting component disposed inside the rotating cylinder 302, wherein the first spur gear 402 and the second spur gear 405 mesh and transmit power.

[0055] Specifically, the drive motor 404 can drive the second spur gear 405 to rotate, and the second spur gear 405 meshes with the first spur gear 402 to drive the connecting shaft 401 to rotate.

[0056] Please refer to this carefully. Figure 6 and Figure 7 The limiting component includes a through hole on the surface of the rotating cylinder 302, a pull bolt 406 that slides in the inner wall of the through hole, and a ratchet 407 fixedly installed at the lower end of the pull bolt 406 to limit the clockwise rotation of the ratchet 403. A baffle 408 is fixedly installed on the surface of the pull bolt 406, and a return spring 409 is sleeved on the surface of the pull bolt 406. The two ends of the return spring 409 abut against the upper end of the baffle 408 and the inner wall of the rotating cylinder 302, respectively.

[0057] Specifically, in the initial state, the return spring 409 can drive the ratchet 407 to insert into the tooth groove of the ratchet 403, which can prevent the ratchet 403 from rotating clockwise. When the return spring 409 is pulled, the ratchet 407 will disengage from the tooth groove on the ratchet 403, and the ratchet 403 will resume clockwise rotation.

[0058] Please refer to this carefully. Figure 4 A circular hole is provided at the center of the first mounting cavity, which is connected to the second mounting cavity. The right end of the connecting shaft 401 passes through the circular hole and is fixedly connected to the left end of the rotating disk 306.

[0059] Specifically, when the ratchet 407 is inserted into the groove on the ratchet 403, the drive motor 404 drives the connecting shaft 401 to rotate counterclockwise. The connecting shaft 401 then drives the ratchet 403 to rotate counterclockwise, thereby causing the clamping plates 305 on the three sliders 304 to clamp the inner hole of the part. When the motor 404 drives the connecting shaft 401 to rotate clockwise, the ratchet 407 restricts the rotation of the ratchet 403. Then, the fixing bolt 502 is unscrewed from the threaded hole on the rotating cylinder 302. When the connecting shaft 401 rotates clockwise, the ratchet 403 transmits rotational force to the rotating cylinder 302. At this point, the rotating cylinder 302, freed from the restraint of the fixing bolt 502, can follow the connecting shaft. Rotation of 401 causes the rotating cylinder 302 and the parts on the clamping components to rotate, allowing for rotation of the four sides of the parts without secondary assembly. When the parts need to be removed from the clamping components, the fixing bolt 502 is screwed into the threaded hole on the rotating cylinder 302. Then, the pull bolt 406 is pulled to drive the ratchet 407 to disengage from the tooth groove on the ratchet 403. At this time, the ratchet 403 resumes clockwise rotation. Then, the drive motor 404 drives the connecting shaft 401 to rotate clockwise. After the connecting shaft 401 rotates clockwise, it drives the rotating disk 306 to rotate clockwise, thereby driving the three sliders 304 to retract synchronously and disengage from the clamping of the inner hole of the parts.

[0060] The working principle of this embodiment is as follows: The adjusting plate 103 is rotated 90 degrees, and then the locking bolts 203 are screwed into the threaded blind holes on both sides of the adjusting plate 103 to support it. Then, the L-shaped bent plate 301 is installed on the adjusting plate 103 with bolts. After installation, the motor 404 is started to drive the second spur gear 405 to rotate. The second spur gear 405 meshes with the first spur gear 402, causing the first spur gear 402 and the connecting shaft 401 to rotate counterclockwise. The connecting shaft 401 is fixedly connected to the rotating disk 306 through a circular hole penetrating the center of the first mounting cavity, driving the rotating disk 306 to rotate the planar thread 307. The planar thread 307 and the threaded grooves 308 on the three sliders 304 form a helical transmission, causing the sliders 304 to move radially and synchronously closer along the track groove 303. Finally, the anti-slip rubber pad on the clamping plate 305 grips the inner hole of the part. At this time, the ratchet 407 in the limiting component is engaged with the return spring 4. Under the action of 09, the ratchet 403 is engaged in the groove, preventing the connecting shaft 401 from rotating clockwise. When multiple sides of the part need to be measured, first loosen the fixing bolt 502 to release the rotating cylinder 302. When the motor 404 drives the connecting shaft 401 to rotate clockwise, the ratchet 407 will restrict the rotation of the ratchet 403. At this time, the rotational torque is transmitted to the rotating cylinder 302 through the ratchet 407, causing the entire rotating cylinder 302 and the part to rotate around the axis. During this process, the part can expose four measuring surfaces, and multi-directional detection can be completed without re-clamping. After the measurement is completed, the fixing bolt 502 must be tightened to lock the rotating cylinder 302. Then, pull the pull bolt 406 upward to overcome the resistance of the return spring 409, so that the ratchet 407 disengages from the groove of the ratchet 403. At this time, the motor 404 drives the connecting shaft 401 to rotate clockwise. Through the transmission of the planar thread 307, the three sliders 304 synchronously retract radially, and the clamping plate 305 disengages from the inner hole of the part to achieve release.

[0061] Example 3

[0062] Compared with Embodiment 1, another implementation of this application is as follows:

[0063] Please refer to this carefully. Figure 8 and Figure 9 The upper surface of the adjusting plate 103 is provided with a support mechanism 600. The support mechanism 600 includes a threaded rod 601, an internal threaded cylinder 602 fixedly installed on the upper end of the threaded rod 601, a conical block 603 threadedly connected to the inner wall of the threaded cylinder 602, and an adjusting nut 604 and a locking nut 605 respectively threadedly connected to the surface of the threaded rod 601. The upper surface of the adjusting plate 103 is provided with a plurality of bolt holes 606 at equal intervals. The bolt holes 606 allow the threaded rod 601 to pass through, and the bolt holes 606 extend to the lower surface of the adjusting plate 103.

[0064] Specifically, the locking nut 605 is unscrewed from the threaded rod 601. Then, according to the shape of the part, the threaded rod 601 is inserted into the corresponding bolt hole 606. Next, the locking nut 605 is screwed into the threaded rod 601 from below the adjusting plate 103. After tightening the locking nut 605 and the adjusting nut 604, the threaded rod 601 can be fixed. Thus, the tapered block 603 or the tapered block 603 can be removed and the threaded cylinder 602 can be used to support parts with a small number of flat surfaces. By changing the height of the adjusting nut 604 on the threaded rod 601, the height of the tapered block 603 can be changed, so that the height of the tapered block 603 can be adjusted according to the shape of the part.

[0065] The working principle of this embodiment is as follows: The operator first unscrews the locking nut 605 from the threaded rod 601 and inserts the threaded rod 601 into the selected bolt hole 606. Then, from below the adjusting plate 103, the locking nut 605 is screwed into the threaded rod 601. By tightening the locking nut 605 and the adjusting nut 604, the threaded rod 601 is fixed to the adjusting plate 103. The equidistant distribution of the bolt holes 606 ensures that the support points can flexibly adapt to the contour of the part, avoiding interference during measurement. When stable support is needed for a local plane of the part, The conical block 603 is fixed to the upper end of the threaded cylinder 602. The inclined surface design of the conical block 603 can disperse the contact stress. If the surface of the part is a regular plane, the conical block 603 can be removed and the threaded cylinder 602 can be used to contact the part directly. The circular cross section of the threaded cylinder 602 ensures uniform support. By rotating the adjusting nut 604, the extension length of the threaded rod 601 can be changed, thereby adjusting the height of the conical block 603 or the threaded cylinder 602. After adjustment, tighten the locking nut 605 to lock the threaded rod 601 and prevent height changes during measurement.

Claims

1. A probe detection fixture, comprising a fixture plate (100), characterized in that: The tooling plate (100) consists of a base (101), an adjusting plate (103) rotatably mounted on the upper surface of the base (101) via a hinge (102), a clearance groove (104) on the surface of the adjusting plate (103), and a locking mechanism (200) disposed between the base (101) and the adjusting plate (103). The locking mechanism (200) includes a support rod (201) rotatably mounted on both sides of the base (101), a strip groove (202) on the surface of the support rod (201), a locking bolt (203) slidably fitted on the inner wall of the strip groove (202), a mounting hole (106) on the inner wall of the clearance groove (104), and threaded blind holes on both sides of the adjusting plate (103) that are compatible with the locking bolt (203). The base (101) is configured as an I-beam, and mounting holes (105) are provided on the surface of the base (101).

2. The probe detection fixture according to claim 1, characterized in that, The upper surface of the adjusting plate (103) is provided with an inner hole clamping mechanism (300). The inner hole clamping mechanism (300) includes an L-shaped curved plate (301) fixedly installed on the upper surface of the adjusting plate (103) by bolts, a rotating cylinder (302) rotatably installed on the right end of the L-shaped curved plate (301) by bearings, a first mounting cavity and a second mounting cavity respectively opened inside the rotating cylinder (302), a clamping component set inside the first mounting cavity, a driving component (400) set inside the second mounting cavity for driving the clamping component to move, and a fixing component (500) set on the right side of the L-shaped curved plate (301) for fixing the rotating cylinder (302).

3. The probe detection fixture according to claim 2, characterized in that, The fixing component (500) includes a mounting plate (501) fixedly installed on the right side of the L-shaped bend plate (301), a fixing bolt (502) threadedly connected to the surface of the mounting plate (501), and a threaded hole on the outer surface of the rotating cylinder (302) that is compatible with the fixing bolt (502).

4. The probe detection fixture according to claim 2, characterized in that, The clamping component includes three track grooves (303) arranged in a circumferential array on the right end of the rotating cylinder (302), sliders (304) that slide and fit into the inner walls of the three track grooves (303), a clamping plate (305) fixedly installed on the right end of the slider (304), a rotating disk (306) rotatably installed inside the first mounting cavity, and a flat thread (307) fixedly installed on the right end of the rotating disk (306). The slider (304) has a threaded groove (308) that is helically driven by the flat thread (307) on the side near the flat thread (307). The track grooves (303) are interconnected with the first mounting cavity, and the surface of the clamping plate (305) is provided with an anti-slip rubber pad.

5. The probe detection fixture according to claim 4, characterized in that, The drive component (400) includes a connecting shaft (401) rotatably mounted on the inner wall of the second mounting cavity, a first spur gear (402) and a ratchet (403) respectively fixedly mounted on the surface of the connecting shaft (401), a motor (404) fixedly mounted on the right end of the L-shaped curved plate (301), a second spur gear (405) fixedly mounted on the output end of the motor (404), and a limiting component disposed inside the rotating cylinder (302), wherein the first spur gear (402) and the second spur gear (405) mesh and transmit power.

6. The probe detection fixture according to claim 5, characterized in that, The limiting component includes a through hole on the surface of the rotating cylinder (302), a pull bolt (406) that slides in the inner wall of the through hole, and a ratchet (407) that is fixedly installed at the lower end of the pull bolt (406) to limit the clockwise rotation of the ratchet (403).

7. The probe detection fixture according to claim 6, characterized in that, A baffle (408) is fixedly installed on the surface of the bolt (406), and a return spring (409) is sleeved on the surface of the bolt (406). The two ends of the return spring (409) abut against the upper end of the baffle (408) and the inner wall of the rotating cylinder (302), respectively.

8. The probe detection fixture according to claim 5, characterized in that, A circular hole is provided at the center of the first mounting cavity, which is connected to the second mounting cavity. The right end of the connecting shaft (401) passes through the circular hole and is fixedly connected to the left end of the rotating disk (306).

9. The probe detection fixture according to claim 1, characterized in that, The upper surface of the adjusting plate (103) is provided with a support mechanism (600). The support mechanism (600) includes a threaded rod (601), an internal threaded cylinder (602) fixedly installed on the upper end of the threaded rod (601), a conical block (603) threaded to the inner wall of the threaded cylinder (602), and an adjusting nut (604) and a locking nut (605) respectively threaded to the surface of the threaded rod (601).

10. A probe detection fixture according to claim 9, characterized in that, The upper surface of the adjusting plate (103) is provided with a plurality of bolt holes (606) at equal intervals. The bolt holes (606) allow the threaded rod (601) to pass through, and the bolt holes (606) extend to the lower surface of the adjusting plate (103).

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