Tool clamp for positioning sensor shell

Abstract

The invention relates to the technical field of tool clamps, in particular to a tool clamp for positioning a sensor shell, which comprises a clamping plate and further comprises a shell, a sliding rail is coaxially and fixedly mounted in the shell, a plurality of sliding seats are slidably mounted on the sliding rail, and adjusting screw rods are mounted on the sliding seats in a penetrating and threaded manner; the clamping plate is installed at the inner end of the adjusting screw rod, a connecting mechanism is arranged at the outer end of the adjusting screw rod, and a driving mechanism is arranged in the shell; the sensor shell clamping device has the beneficial effects that the multiple sliding seats are slidably installed on the sliding rail, the clamping plates are installed on the sliding seats through the adjusting screws, the clamping plates can be transversely adjusted through the adjusting screws, and the multiple clamping plates can abut against and clamp the multiple side faces of a sensor shell by adjusting the positions of the sliding seats; by means of the arrangement, the device can be suitable for sensor shells of various shapes and sizes, and the application range is wide.

Description

Technical Field

[0001] The invention relates to the technical field of tooling fixtures, and in particular to a tooling fixture used for positioning a sensor housing. Background Art

[0002] In modern industrial production and automation equipment, sensors are key components for data acquisition, and their performance directly affects the stability and accuracy of the entire system. Sensors have a wide range of applications, from monitoring environmental parameters such as temperature, humidity, and pressure to detecting physical quantities such as position and speed, all of which reflect their importance. In order to protect the sensor from the influence of the external environment and ensure the accuracy of its installation position, it is usually necessary to place the sensor in a specially designed housing. However, in actual applications, due to different requirements for sensors in different application scenarios, the shapes and sizes of sensors and their housings vary, which brings challenges to the installation and debugging of sensors.

[0003] Traditional sensor housing positioning methods mostly use fixed fixtures. Although such fixtures are simple in structure and easy to manufacture, they often need to be replaced with different fixtures when facing sensor housings of different shapes or sizes, which not only increases production costs but also reduces production efficiency. In addition, for some special shapes of sensor housings, traditional fixtures may not be able to achieve effective fixation, which in turn affects the installation accuracy and reliability of the sensor.

[0004] Therefore, a tooling fixture for positioning the sensor housing is needed to solve the above problems. Summary of the invention

[0005] In order to solve the above problem, that is, to solve the problem that the existing fixture cannot adapt to sensor housings of various shapes and sizes, the present invention provides a fixture for positioning a sensor housing.

[0006] A tooling fixture for positioning a sensor housing comprises a clamping plate and a housing, wherein a slide rail is coaxially fixedly installed inside the housing, a plurality of slide seats are slidably installed on the slide rail, an adjusting screw is threadedly installed on the slide seat, the clamping plate is installed on the inner end of the adjusting screw, a connecting mechanism is provided at the outer end of the adjusting screw, a driving mechanism is provided inside the housing, and the adjusting screw is drivingly connected to the driving mechanism via the connecting mechanism; by slidingly installing a plurality of slide seats on the slide rail and installing a clamping plate on each slide seat via an adjusting screw, not only can the clamping plate be laterally adjusted by the adjusting screw, but also the position of the slide seat can be adjusted so that the plurality of clamping plates can respectively clamp against a plurality of side surfaces of the sensor housing, and through this arrangement, the device can be applicable to sensor housings of various shapes and sizes and has a wide range of applications.

[0007] The top end of the locking cam is fixedly provided with a locking screw hole, and the bottom end of the locking cam is connected with the mounting groove of the locking cam, and the top end of the locking cam is fixedly provided with a locking screw, and the top end of the locking screw is extended out of the locking cam to the top of the locking cam. The sliding seat on the slide rail can be provided with multiple seats as needed. By arranging a stabilizing slide groove on the slide rail and arranging a stabilizing slide groove in the mounting slide groove on the slide seat, the stability of the slide seat can be guaranteed. By arranging a locking screw connected with the mounting slide groove on the slide seat, the slide seat can be locked by making the locking screw abut against the upper surface of the slide rail after the slide seat is moved to a suitable position to prevent the slide seat from sliding.

[0008] Preferably, a through hole is penetrated through the position near the top end of the slide seat, a through rod is fixedly installed inside the through hole, the inner end of the through rod is flush with the inner side of the slide seat, an adjusting screw hole is coaxially penetrated through the through rod, the adjusting screw is threadedly installed in the adjusting screw hole, the inner end of the adjusting screw extends into the interior of the clamping plate and a diameter expansion plate is coaxially fixedly installed thereon, the diameter expansion plate is disc-shaped, and the diameter expansion plate rotates in the clamping plate; when the clamping plate needs to be moved laterally to clamp the sensor housing, the adjusting screw is rotated, and the adjusting screw drives the clamping plate to move laterally through the threaded movement with the adjusting screw hole.

[0009] Preferably, a mounting plate is fixedly installed on the upper surface of the sliding seat near the outer side, and an outer sleeve is fixedly installed on the mounting plate, the outer sleeve is parallel to the adjusting screw, and an inner sliding rod is slidably installed inside the outer sleeve, and the inner end of the inner sliding rod extends to the outside of the outer sleeve and is fixedly connected to the outer side of the clamping plate; by making the inner sliding rod that can only slide laterally fixedly connected to the clamping plate, when the adjusting screw rotates, the expansion plate rotates in the clamping plate, and the clamping plate will not rotate under the limiting action of the inner sliding rod, so that the clamping plate will not rotate when moving laterally, and can be pressed against the outer surface of the sensor housing in a fixed state, thereby ensuring the stability of the clamping.

[0010] The outer end of the driving member is affixed to the guide rail, and the outer end of the driving member is fixedly provided with a toothed structure which is cooperatively connected with the guide rail.

[0011] Preferably, the driving mechanism includes a driving ring, which is coaxially rotatably installed in the side wall of the outer shell, and the top of the inner side of the driving ring is provided with a helical tooth groove matching the bevel gear, and the inner side of the side wall of the outer shell is coaxially provided with an insertion hole, and the outer end of the adjusting screw and the bevel gear are both extended into the interior of the insertion hole, and when the tension spring is not pulled, the bevel gear and the helical tooth groove are not engaged.

[0012] Preferably, a screw seat is fixedly installed on the side of the through rod near the outer end, and a counter screw is installed on the screw seat through a thread, and a ball is provided on the outer end of the counter screw, and the ball abuts against the inner side of the bevel gear; by providing a counter screw on the side of the through rod near the outer end, and making the ball at the outer end of the counter screw abut against the inner side of the bevel gear, the bevel gear can be abutted by rotating the counter screw, so that the bevel gear drives the driving slide rod to slide outward and engage with the helical tooth groove. When the counter screw rotates and resets, the bevel gear resets and disengages from the helical tooth groove under the tension of the tensioning spring. This arrangement can make the adjusting screw on any slide seat driven or not.

[0013] Preferably, a tooth groove is provided on the lower surface of the driving ring, a driving rod is rotatably installed in the side wall of the outer shell, a gear is coaxially fixedly installed on the outer surface of the driving rod, the gear is meshingly connected with the tooth groove on the lower surface of the driving ring, and the outer end of the driving rod extends to the outside of the outer shell and is fixedly installed with a turntable; by rotating the turntable, the driving ring can be rotated through the gear, and when the driving ring rotates, multiple bevel gears can be driven to rotate at the same time, thereby driving multiple clamping plates at the same time, which can not only clamp and fix the sensor housing, but also center the sensor housing for easy operation.

[0014] The beneficial effects of the present invention are: 1. The present invention installs a plurality of slide seats on the slide rails by sliding, and installs a clamping plate on each slide seat by adjusting a screw. Not only can the clamping plate be adjusted laterally by adjusting the screw, but also the position of the slide seat can be adjusted so that the plurality of clamping plates can respectively clamp against a plurality of side surfaces of the sensor housing. Through this arrangement, the device can be applicable to sensor housings of various shapes and sizes, and has a wide range of applications.

[0015] 2. The present invention fixes the inner sliding rod that can only slide laterally with the clamping plate. When the adjusting screw rotates, the expansion plate rotates in the clamping plate, and the clamping plate will not rotate under the limiting effect of the inner sliding rod. The clamping plate will not rotate when moving laterally and can be fixedly pressed against the outer surface of the sensor housing, thereby ensuring the stability of the clamping.

[0016] 3. The present invention provides a slidable driving slide rod inside the adjusting screw. When the driving mechanism drives the driving slide rod to rotate through the bevel gear, the driving slide rod will synchronously drive the adjusting screw to rotate under the limiting action of the limit slide groove and the limit slider, so that the bevel gear can drive the adjusting screw to drive the clamping plate to move horizontally while being always connected to the driving mechanism, so that the staff only needs to operate the driving mechanism, which is convenient for operation.

[0017] 4. The present invention sets a push screw at a position close to the outer end of the side of the penetration rod, and makes the ball at the outer end of the push screw push against the inner side of the bevel gear. By rotating the push screw, the bevel gear can be pushed against, so that the bevel gear drives the driving slide rod to slide outward and engage with the helical tooth groove. When the push screw rotates to reset, the bevel gear resets and disengages from the helical tooth groove under the tension of the tension spring. This arrangement can make the adjusting screw on any slide seat be driven or not driven.

[0018] 5. The present invention can rotate the drive ring through the gears by rotating the turntable. When the drive ring rotates, it can drive multiple bevel gears to rotate at the same time, thereby driving multiple clamping plates at the same time, which can not only clamp and fix the sensor housing, but also center the sensor housing for easy operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the drive ring of the present invention; Figure 3 It is a schematic diagram of the slide rail structure of the present invention; Figure 4 This is a schematic diagram of the slide structure of the present invention; Figure 5 This is a schematic diagram of the through-rod structure of the present invention; Figure 6This is a schematic diagram of the cross-sectional structure of the adjusting screw of the present invention; Figure 7 This is a schematic diagram of the structure of the expansion plate of the present invention; Figure 8 It is a schematic diagram of the structure of the push screw of the present invention.

[0020] In the figure: 1. Clamping plate; 2. Shell; 3. Slide rail; 4. Slide seat; 5. Adjusting screw; 6. Mounting slide groove; 7. Stabilizing slide groove; 8. Stabilizing slide plate; 9. Locking screw hole; 10. Locking screw; 11. Through hole; 12. Through rod; 13. Adjusting screw hole; 14. Expansion plate; 15. Mounting plate; 16. Outer sleeve; 17. Inner slide rod; 18. Coaxial hole; 19. Driving slide rod; 20. Tension spring; 21. Limiting slide groove; 22. Limiting slider; 23. Bevel gear; 24. Driving ring; 25. Oblique tooth groove; 26. Insertion hole; 27. Screw seat; 28. Abutting screw; 29. ​​Ball; 30. Driving rod; 31. Gear; 32. Turntable. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0022] like Figure 1 and Figure 3 As shown, an embodiment of the present invention discloses a tooling fixture for positioning a sensor housing, comprising a clamping plate 1 and a housing 2, wherein a slide rail 3 is coaxially fixedly installed inside the housing 2, a plurality of slide seats 4 are slidably installed on the slide rail 3, an adjusting screw 5 is threadedly installed on the slide seat 4, the clamping plate 1 is installed on the inner end of the adjusting screw 5, a connecting mechanism is provided on the outer end of the adjusting screw 5, a driving mechanism is provided inside the housing 2, and the adjusting screw 5 is drivingly connected to the driving mechanism through the connecting mechanism; by slidingly installing a plurality of slide seats 4 on the slide rail 3, and installing the clamping plate 1 on each slide seat 4 through the adjusting screw 5, not only can the clamping plate 1 be laterally adjusted through the adjusting screw 5, but also the position of the slide seat 4 can be adjusted so that the plurality of clamping plates 1 can respectively clamp against a plurality of side surfaces of the sensor housing, and through this arrangement, the device can be applicable to sensor housings of various shapes and sizes, and has a wide range of applications.

[0023] like Figure 3-4As shown, the slide rail 3 is coaxially fixedly installed on the upper surface of the bottom wall of the shell 2, the bottom of the slide seat 4 is provided with a mounting groove 6 matching the slide rail 3, the slide seat 4 is slidably installed on the slide rail 3 through the mounting groove 6, the outer side of the slide rail 3 is coaxially provided with a stabilizing groove 7, the side of the mounting groove 6 is fixedly provided with a stabilizing slide plate 8 matching the stabilizing groove 7, the stabilizing slide plate 8 slides in the stabilizing groove 7, the upper surface of the slide seat 4 is provided with a locking screw hole 9, the bottom end of the locking screw hole 9 is connected to the mounting groove 6, and the internal thread of the locking screw hole 9 is provided with a lock The top end of the fixed screw 10 and the locking screw 10 extend above the slide seat 4; wherein a plurality of slide seats 4 on the slide rail 3 can be provided as needed, by providing a stabilizing groove 7 on the slide rail 3 and providing a stabilizing slide plate 8 in the mounting groove 6 on the slide seat 4, the stability of the slide seat 4 can be ensured, and by providing a locking screw 10 connected to the mounting groove 6 on the slide seat 4, after the slide seat 4 is moved to a suitable position, the slide seat 4 can be locked by making the locking screw 10 abut against the upper surface of the slide rail 3 to prevent the slide seat 4 from sliding.

[0024] like Figure 3-6 As shown, a through hole 11 is penetrated near the top of the slide 4, and a through rod 12 is fixedly installed inside the through hole 11. The inner end of the through rod 12 is flush with the inner side of the slide 4, and an adjusting screw hole 13 is coaxially penetrated on the through rod 12. The adjusting screw 5 is threadedly installed in the adjusting screw hole 13. The inner end of the adjusting screw 5 extends into the interior of the clamping plate 1 and is coaxially fixedly installed with an expansion plate 14. The expansion plate 14 is disc-shaped and rotates in the clamping plate 1. When the clamping plate 1 needs to be moved laterally to clamp the sensor housing, the adjusting screw 5 is rotated, and the adjusting screw 5 drives the clamping plate 1 to move laterally through the threaded movement with the adjusting screw hole 13.

[0025] like Figure 3 As shown, a mounting plate 15 is fixedly installed on the upper surface of the slide 4 near the outer side, and an outer sleeve 16 is fixedly installed through the mounting plate 15. The outer sleeve 16 is parallel to the adjusting screw 5, and an inner slide rod 17 is slidably installed inside the outer sleeve 16. The inner end of the inner slide rod 17 extends to the outside of the outer sleeve 16 and is fixedly connected to the outer side of the clamping plate 1; by making the inner slide rod 17 that can only slide laterally fixedly connected to the clamping plate 1, when the adjusting screw 5 rotates, the expansion plate 14 rotates in the clamping plate 1, and the clamping plate 1 will not rotate under the limiting action of the inner slide rod 17, so that the clamping plate 1 will not rotate when moving laterally, and can be pressed against the outer surface of the sensor housing in a fixed state, thereby ensuring the stability of the clamping.

[0026] like Figure 6As shown, the connecting mechanism includes a coaxial hole 18, which is coaxially opened at the outer end of the adjusting screw 5, and a driving slide rod 19 is slidably installed inside the coaxial hole 18. The inner end of the driving slide rod 19 is connected to the inner end of the coaxial hole 18 through a tension spring 20. A limiting slide groove 21 is opened on the outer surface of the coaxial hole 18, and a limiting slider 22 matching the limiting slide groove 21 is fixedly installed on the outer surface of the driving slide rod 19. The limiting slider 22 slides in the limiting slide groove 21, and the outer end of the driving slide rod 19 extends to the outside of the adjusting screw 5 and is coaxially fixedly installed. There is a bevel gear 23, which is connected to the driving mechanism; by arranging a slidable driving slide rod 19 inside the adjusting screw 5, when the driving mechanism drives the driving slide rod 19 to rotate through the bevel gear 23, under the limiting action of the limiting slide groove 21 and the limiting slider 22, the driving slide rod 19 will synchronously drive the adjusting screw 5 to rotate, so that the bevel gear 23 can drive the adjusting screw 5 to drive the clamping plate 1 to move horizontally while being always connected to the driving mechanism, so that the staff only needs to operate the driving mechanism, which is convenient for operation.

[0027] like Figure 1-2 As shown, the driving mechanism includes a driving ring 24, which is coaxially rotatably installed in the side wall of the housing 2. A helical tooth groove 25 matching the bevel gear 23 is provided at the top of the inner side of the driving ring 24, and an insertion hole 26 is coaxially provided on the inner side of the side wall of the housing 2. The outer end of the adjusting screw 5 and the bevel gear 23 are both inserted into the insertion hole 26. When the tensioning spring 20 is not pulled, the bevel gear 23 and the helical tooth groove 25 are not engaged.

[0028] like Figure 3 and Figure 8 As shown, a screw seat 27 is fixedly installed at a position near the outer end of the side of the through rod 12, and a push screw 28 is threadedly installed on the screw seat 27. A ball 29 is provided at the outer end of the push screw 28, and the ball 29 pushes against the inner side of the bevel gear 23; by arranging the push screw 28 at a position near the outer end of the side of the through rod 12, and making the ball 29 at the outer end of the push screw 28 push against the inner side of the bevel gear 23, the bevel gear 23 can be pushed by rotating the push screw 28, so that the bevel gear 23 drives the driving slide rod 19 to slide outward and mesh with the helical tooth groove 25. When the push screw 28 rotates and resets, the bevel gear 23 is reset and disengaged from the helical tooth groove 25 under the tension of the tension spring 20. This arrangement can make the adjusting screw 5 on any slide seat 4 driven or not.

[0029] like Figure 1-2As shown, a tooth groove is provided on the lower surface of the driving ring 24, a driving rod 30 is rotatably installed in the side wall of the outer shell 2, a gear 31 is coaxially fixedly installed on the outer surface of the driving rod 30, the gear 31 is meshed and connected with the tooth groove on the lower surface of the driving ring 24, and the outer end of the driving rod 30 extends to the outside of the outer shell 2 and is fixedly installed with a turntable 32; by rotating the turntable 32, the driving ring 24 can be rotated through the gear 31, and when the driving ring 24 rotates, multiple bevel gears 23 can be driven to rotate at the same time, thereby driving multiple clamping plates 1 at the same time, which can not only clamp and fix the sensor housing, but also center the sensor housing for easy operation.

[0030] Working principle: By slidingly installing multiple slides 4 on the slide rail 3, and installing the clamping plate 1 on each slide 4 by adjusting the screw 5, not only can the clamping plate 1 be adjusted laterally by adjusting the screw 5, but also by adjusting the position of the slide 4, the multiple clamping plates 1 can be respectively clamped against multiple side surfaces of the sensor housing. Through this arrangement, the device can be applicable to sensor housings of various shapes and sizes, and has a wide range of applications; wherein multiple slides 4 on the slide rail 3 can be arranged as needed, and by arranging a stabilizing slide groove 7 on the slide rail 3 and arranging a stabilizing slide plate 8 in the installation slide groove 6 on the slide seat 4, the stability of the slide seat 4 can be ensured, and by arranging a stabilizing slide plate 8 on the slide seat 4 that is connected to the installation slide groove 6 The locking screw 10 can be used to lock the slide 4 by pressing the locking screw 10 against the upper surface of the slide rail 3 after the slide 4 is moved to a suitable position to prevent the slide 4 from sliding. When the clamping plate 1 needs to be moved laterally to clamp the sensor housing, the adjusting screw 5 is rotated, and the adjusting screw 5 drives the clamping plate 1 to move laterally through the threaded movement with the adjusting screw hole 13. By fixing the inner slide bar 17 that can only slide laterally to the clamping plate 1, when the adjusting screw 5 is rotated, the expansion plate 14 rotates in the clamping plate 1, and the clamping plate 1 will not rotate under the limiting action of the inner slide bar 17, so that the clamping plate 1 will not rotate when it moves laterally, and can press against the sensor in a fixed state. The outer surface of the shell ensures the stability of the clamping; by arranging a slidable driving slide rod 19 inside the adjusting screw 5, when the driving mechanism drives the driving slide rod 19 to rotate through the bevel gear 23, under the limiting action of the limit slide groove 21 and the limit slide block 22, the driving slide rod 19 will synchronously drive the adjusting screw 5 to rotate, so that the bevel gear 23 can drive the adjusting screw 5 to drive the clamping plate 1 to move horizontally while being always connected to the driving mechanism, so that the staff only needs to operate the driving mechanism, which is convenient for operation; by arranging a push screw 28 at a position close to the outer end of the side of the penetrating rod 12, and making the ball 29 at the outer end of the push screw 28 push against the inner of the bevel gear 23. On the other hand, by rotating the abutting screw 28, the bevel gear 23 can be abutted, so that the bevel gear 23 drives the driving slide rod 19 to slide outward and engage with the helical tooth groove 25. When the abutting screw 28 is rotated and reset, the bevel gear 23 is reset and disengaged from the helical tooth groove 25 under the tension of the tensioning spring 20. This setting can make the adjusting screw 5 on any slide seat 4 driven or not driven; by rotating the turntable 32, the driving ring 24 can be rotated through the gear 31. When the driving ring 24 rotates, multiple bevel gears 23 can be driven to rotate at the same time, thereby driving multiple clamping plates 1 at the same time, which can not only clamp and fix the sensor housing, but also center the sensor housing for easy operation.

[0031] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0032] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A fixture for positioning a sensor housing, comprising a clamping plate (1), characterized in that: The invention also comprises a housing (2), a slide rail (3) being coaxially fixedly mounted inside the housing (2), a plurality of slide seats (4) being slidably mounted on the slide rail (3), an adjusting screw (5) being threadedly mounted on the slide seat (4), the clamping plate (1) being mounted on the inner end of the adjusting screw (5), a connecting mechanism being arranged at the outer end of the adjusting screw (5), a driving mechanism being arranged inside the housing (2), and the adjusting screw (5) being drivingly connected to the driving mechanism via the connecting mechanism.

2. A fixture for positioning a sensor housing according to claim 1, characterized in that: The slide rail (3) is coaxially fixedly mounted on the upper surface of the bottom wall of the shell (2); a mounting groove (6) matching the slide rail (3) is provided at the bottom of the slide seat (4); the slide seat (4) is slidably mounted on the slide rail (3) through the mounting groove (6); a stabilizing groove (7) is coaxially provided on the outer side of the slide rail (3); a stabilizing slide plate (8) matching the stabilizing groove (7) is fixedly mounted on the side of the mounting groove (6); the stabilizing slide plate (8) slides in the stabilizing groove (7); a locking screw hole (9) is provided on the upper surface of the slide seat (4); the bottom end of the locking screw hole (9) is connected to the mounting groove (6); a locking screw (10) is installed on the internal thread of the locking screw hole (9); the top end of the locking screw (10) extends above the slide seat (4).

3. A fixture for positioning a sensor housing according to claim 2, characterized in that: A through hole (11) is formed near the top of the slide seat (4), a through rod (12) is fixedly mounted inside the through hole (11), the inner end of the through rod (12) is flush with the inner side of the slide seat (4), an adjusting screw hole (13) is coaxially formed on the through rod (12), the adjusting screw (5) is threadedly mounted in the adjusting screw hole (13), the inner end of the adjusting screw (5) extends into the interior of the clamping plate (1) and is coaxially fixedly mounted with an expansion plate (14), the expansion plate (14) is disc-shaped, and the expansion plate (14) rotates inside the clamping plate (1).

4. A fixture for positioning a sensor housing according to claim 3, characterized in that: A mounting plate (15) is fixedly mounted on the upper surface of the slide seat (4) near the outer side, an outer sleeve (16) is fixedly mounted through the mounting plate (15), the outer sleeve (16) is parallel to the adjusting screw (5), an inner slide rod (17) is slidably mounted inside the outer sleeve (16), the inner end of the inner slide rod (17) extends to the outside of the outer sleeve (16) and is fixedly connected to the outer side of the clamping plate (1).

5. A fixture for positioning a sensor housing according to claim 4, characterized in that: The connecting mechanism comprises a coaxial hole (18), wherein the coaxial hole (18) is coaxially opened at the outer end of the adjusting screw (5), a driving slide rod (19) is slidably installed inside the coaxial hole (18), the inner end of the driving slide rod (19) is connected to the inner end of the coaxial hole (18) via a tension spring (20), a limiting slide groove (21) is opened on the outer surface of the coaxial hole (18), a limiting slide block (22) matching the limiting slide groove (21) is fixedly installed on the outer surface of the driving slide rod (19), the limiting slide block (22) slides in the limiting slide groove (21), the outer end of the driving slide rod (19) protrudes to the outside of the adjusting screw (5) and is coaxially fixedly installed with a bevel gear (23), and the bevel gear (23) is drivingly connected to the driving mechanism.

6. A fixture for positioning a sensor housing according to claim 5, characterized in that: The driving mechanism comprises a driving ring (24), the driving ring (24) being coaxially rotatably mounted inside the side wall of the housing (2), a helical tooth groove (25) matching the bevel gear (23) being provided at the top of the inner side of the driving ring (24), an insertion hole (26) being coaxially provided on the inner side of the side wall of the housing (2), the outer end of the adjusting screw (5) and the bevel gear (23) both being inserted into the insertion hole (26), and when the tension spring (20) is not pulled, the bevel gear (23) and the helical tooth groove (25) are not meshed.

7. A fixture for positioning a sensor housing according to claim 6, characterized in that: A screw seat (27) is fixedly mounted on a side of the through rod (12) near the outer end, a counter screw (28) is threadedly mounted on the screw seat (27), a ball (29) is disposed at the outer end of the counter screw (28), and the ball (29) is counterbalanced against the inner side of the bevel gear (23).

8. A fixture for positioning a sensor housing according to claim 7, characterized in that: The lower surface of the drive ring (24) is provided with tooth grooves, a drive rod (30) is rotatably mounted in the side wall of the housing (2), a gear (31) is coaxially fixedly mounted on the outer surface of the drive rod (30), the gear (31) is meshingly connected with the tooth grooves on the lower surface of the drive ring (24), and the outer end of the drive rod (30) extends outside the housing (2) and is fixedly mounted with a rotating disk (32).

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