CN216344960U - A closed-loop magnetic field sensor operating fixture - Google Patents

Abstract

The utility model discloses a closed-loop magnetic field sensor operation fixing device, comprising a support base plate, a height adjustment assembly, an inclination adjustment assembly, a rotation adjustment assembly, a clamping assembly and a magnetic field sensor. The height adjustment assembly is arranged on the support base plate and is is arranged above the support base plate, the inclination adjustment component is arranged on the height adjustment component and above the height adjustment component, the rotation adjustment component is arranged on the inclination adjustment component and above the inclination adjustment component, The clamping component is arranged on the rotation adjustment component and above the rotation adjustment component, and the magnetic field sensor is arranged on the rotation adjustment component and the clamping component. The utility model belongs to the technical field of magnetic field sensors, in particular to a closed-loop magnetic field sensor operation fixing device with adjustable height, adjustable orientation and convenient installation and disassembly.

Description

A closed-loop magnetic field sensor operating fixture

technical field

The utility model belongs to the technical field of magnetic field sensors, in particular to a closed-loop magnetic field sensor operation fixing device.

Background technique

In various production activities, it is often necessary to control and adjust the operating state of mechanical equipment. Therefore, it is necessary to use a magnetic field sensor to detect the rotational speed. In specific use, the existing magnetic field sensor needs to be opposite to the axis of the rotating equipment. The height and orientation of different equipment are often different, and the height and orientation of the existing fixtures are generally fixed, which cannot be used to measure the rotational speed of equipment at different heights and different orientations, resulting in inconvenience in use. Moreover, the existing fixtures The magnetic field sensor is often fixed by welding or bolting, which will lead to inconvenient installation and disassembly, and is not conducive to the user to replace the magnetic field sensor. Therefore, we propose a closed-loop magnetic field sensor operation fixing device to solve the above problems.

Utility model content

In view of the above situation, in order to overcome the defects of the prior art, the present utility model provides a closed-loop magnetic field sensor operation fixing device, which effectively solves the problems of fixed height and orientation of the existing device and inconvenient installation and disassembly, and realizes convenient The advantages of replacing the magnetic field sensor are, in particular, a closed-loop magnetic field sensor running fixture that is adjustable in height, adjustable in orientation, and easy to install and remove.

The technical solution adopted by the present utility model is as follows: a closed-loop magnetic field sensor operation fixing device proposed by the present utility model includes a support base plate, a height adjustment assembly, an inclination adjustment assembly, a rotation adjustment assembly, a clamping assembly and a magnetic field sensor, the said The height adjustment component is arranged on and above the support base plate, the inclination adjustment component is arranged on the height adjustment component and above the height adjustment component, and the rotation adjustment component is arranged on the inclination adjustment component and is arranged above the inclination adjustment component, the clamping component is arranged on the rotation adjustment component and above the rotation adjustment component, the magnetic field sensor is arranged on the rotation adjustment component and is arranged on the clamping component, the height The adjustment assembly includes a height adjustment sleeve, a fixed baffle, a height adjustment screw, a height adjustment worm, a height adjustment knob, a height adjustment worm gear and a height adjustment sleeve, the height adjustment sleeve is provided on the support base plate and is provided on the support base plate. Above, the fixed baffle is arranged on the height adjustment sleeve and inside the height adjustment sleeve, the height adjustment screw is rotatably connected to the height adjustment sleeve and is rotatably connected to the fixed baffle, the height The adjustment worm is rotatably connected to the height adjustment sleeve and arranged through the height adjustment sleeve, the height adjustment knob is arranged on the height adjustment worm and outside the height adjustment sleeve, and the height adjustment worm wheel is arranged on the height adjustment screw And it is meshed with the height adjustment worm. The height adjustment sleeve rod is plugged and connected on the height adjustment sleeve and screwed on the height adjustment screw. In order to realize the function of height adjustment, when the height of the device needs to be adjusted. When adjusting, the user turns the height adjustment knob, the height adjustment knob drives the height adjustment worm to rotate, the height adjustment worm drives the height adjustment worm wheel to rotate through gear transmission, the height adjustment worm wheel drives the height adjustment screw to rotate, and the height adjustment screw drives the thread to connect to the height adjustment screw. The height-adjusting sleeve rod moves up or down along the height-adjusting sleeve, so that the height of the device changes, which facilitates the measurement of equipment with different heights.

In order to realize the function of azimuth adjustment, the inclination adjustment assembly includes an adjustment ball seat, a ball, an inclination adjustment ball, a pressing bolt and a fixing rod. Above the sleeve rod, the ball is arranged on and in the adjustment ball seat, the inclination adjustment ball is arranged on the adjustment ball seat and in the adjustment ball seat, and the abutting bolt is threadedly connected to the adjustment ball seat. on the adjusting ball seat, the fixing rod is arranged on the inclination adjusting ball, and the rotating adjusting assembly includes a rotating fixing seat, a rotating adjusting worm, a rotating adjusting shaft, a rotating adjusting knob, a rotating adjusting worm wheel and a rotating platen. The rotation fixing seat is arranged on the fixing rod, the rotation adjustment worm is rotatably connected to the rotation fixing seat, the rotation adjustment shaft is rotatably connected to the rotation fixing seat and is arranged through the rotation fixing seat, and the rotation adjustment knob is arranged on the rotation fixing seat. The rotation adjustment shaft is arranged outside the rotation fixing seat, the rotation adjustment worm wheel is arranged on the rotation adjustment shaft and is arranged in mesh with the rotation adjustment worm, and the rotation platen is hingedly arranged on the rotation fixing seat and is arranged on the rotation adjustment worm When it is necessary to measure the equipment of different orientations, first, the user unscrews the tightening bolts outwards, so that the inclination adjustment ball changes from the tightened and fixed state to the movable state, and then adjusts the ball seat, ball . The use of the inclination adjustment ball and the fixed rod changes the inclination angle. When the appropriate inclination angle is adjusted, the user tightens the tightening bolt, so that the inclination adjustment ball changes from a movable state to a tight and fixed state. After that, the user turns the rotary adjustment knob, the rotary adjustment knob drives the rotation adjustment shaft to rotate, the rotation adjustment shaft drives the rotation adjustment worm wheel to rotate, the rotation adjustment worm wheel drives the rotation adjustment worm to rotate through the gear transmission, and the rotation adjustment worm drives the rotation platen to rotate, thereby The magnetic field sensor fixed on the device is rotated, so it can be seen that the device can measure equipment in different orientations by simultaneously adjusting the inclination adjustment component and the rotation adjustment component.

In order to realize the function of easy installation and disassembly, the clamping assembly includes a fixed plate, a clamping sliding rod, a pressing plate, a contact block, an adjustment plate, a clamping screw and a clamping adjustment knob, and the fixing plate is arranged on the rotary table. The clamping slide bar is set on the fixing plate for plugging and unplugging connection, the pressing plate is set on the clamping slide bar, and the contact block is set on the pressing plate, The adjusting plate is arranged on the clamping slide rod, the clamping screw is threadedly connected to the fixing plate, hingedly arranged on the abutting plate, and is rotatably connected to the adjusting plate, and the clamping adjustment knob is arranged on the clamp On the holding screw, when the magnetic field sensor needs to be installed, first, the user places the magnetic field sensor on the central position of the upper surface of the rotating platen, then the user turns the clamping adjustment knob, and the clamping adjustment knob drives the clamping screw Rotate, so that the four sets of abutting plates can fix the magnetic field sensor from four directions, so as to facilitate the installation of the magnetic field sensor, and in the process of fixing, because the contact block is set with rubber material, and the rubber has high friction The coefficient and relatively soft characteristics can not only make the fixing effect better, but also prevent the magnetic field sensor from being damaged during the fixing process. When the magnetic field sensor needs to be disassembled, the user can reverse the clamping adjustment The four sets of abutting plates are far away from the magnetic field sensor, so that the magnetic field sensor is no longer fixed by the clamping assembly, so that the magnetic field sensor can be easily disassembled. It can be seen that by adjusting the clamping assembly, the device is convenient for the magnetic field sensor. Installation and disassembly are convenient for users to replace the magnetic field sensor.

Further, the ball is arranged between the adjustment ball seat and the inclination adjustment ball, the rotation adjustment worm is arranged between the rotation fixing seat and the rotation table plate, and the fixing plate is arranged between the abutting plate and the adjustment plate. .

Further, the height adjustment screw and the supporting bottom plate are arranged vertically, the height adjustment screw and the fixed partition are arranged vertically, the height adjustment worm and the height adjustment screw are arranged vertically, and the clamping screw and the clamping slide are arranged vertically. The rods are arranged in parallel.

Preferably, the supporting bottom plate is arranged in a rectangular plate shape.

Preferably, the balls are provided with several groups, the fixing plate is provided with four groups, the number of the clamping slide bars is twice the number of the fixing plates, and the number of the abutting plates is the same as the number of the fixing plates , the number of the contact blocks is the same as the number of the fixed plates, the number of the adjustment plates is the same as the number of the fixed plates, and the number of the clamping screws is the same as the number of the fixed plates.

Wherein, the contact block is provided with rubber material.

The beneficial effects of the present utility model obtained by adopting the above structure are as follows: a closed-loop magnetic field sensor operation fixing device proposed in this solution effectively solves the problems of the existing device being fixed in height and orientation and inconvenient to install and disassemble, and realizes easy replacement. The advantages of the magnetic field sensor are, in particular, a closed-loop magnetic field sensor operation fixing device with adjustable height, adjustable orientation and easy installation and removal.

Description of drawings

1 is a schematic diagram of the overall structure from a first perspective of a closed-loop magnetic field sensor operation fixing device proposed by the present invention;

FIG. 2 is a schematic diagram of the overall structure of a closed-loop magnetic field sensor operation fixing device from a second angle of view proposed by the present invention;

3 is a schematic diagram of the overall structure of a closed-loop magnetic field sensor operation fixing device from a third angle of view proposed by the present invention;

4 is a cross-sectional view of a closed-loop magnetic field sensor operation fixing device proposed by the utility model from a first perspective;

5 is a cross-sectional view of a closed-loop magnetic field sensor operation fixing device proposed by the utility model from a second perspective;

FIG. 6 is a cross-sectional view of a closed-loop magnetic field sensor operation fixing device according to the present invention from a third angle of view.

Among them, 1. Support base plate, 2. Height adjustment assembly, 3. Inclination adjustment assembly, 4. Rotation adjustment assembly, 5. Clamping assembly, 6. Magnetic field sensor, 7. Height adjustment sleeve, 8. Fixed partition, 9, height adjustment screw, 10, height adjustment worm, 11, height adjustment knob, 12, height adjustment worm gear, 13, height adjustment sleeve, 14, adjustment ball seat, 15, ball, 16, inclination adjustment ball, 17, Tightening bolt, 18, fixed rod, 19, rotating fixing seat, 20, rotating adjusting worm, 21, rotating adjusting shaft, 22, rotating adjusting knob, 23, rotating adjusting worm gear, 24, rotating platen, 25, fixing plate, 26. Clamping slide bar, 27, abutting plate, 28, contact block, 29, adjusting plate, 30, clamping screw, 31, clamping adjustment knob.

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification, and are used to explain the present invention together with the embodiments of the present invention, and do not constitute a limitation to the present invention.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. For example; based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

As shown in Fig. 1, Fig. 2, Fig. 5 and Fig. 6, a closed-loop magnetic field sensor operation fixing device proposed by the present utility model includes a support base plate 1, a height adjustment assembly 2, an inclination adjustment assembly 3, and a rotation adjustment assembly 4 , a clamping assembly 5 and a magnetic field sensor 6, the height adjustment assembly 2 is arranged on the support base plate 1 and above the support base plate 1, the inclination adjustment assembly 3 is arranged on the height adjustment assembly 2 and is arranged in the height adjustment Above the component 2, the rotation adjustment component 4 is arranged on the inclination adjustment component 3 and above the inclination adjustment component 3, and the clamping component 5 is arranged on the rotation adjustment component 4 and is arranged on the rotation adjustment component 4 Above, the magnetic field sensor 6 is arranged on the rotation adjustment component 4 and on the clamping component 5, and the height adjustment component 2 includes a height adjustment sleeve 7, a fixed partition 8, a height adjustment screw 9, and a height adjustment worm. 10. The height adjustment knob 11, the height adjustment worm gear 12 and the height adjustment sleeve rod 13, the height adjustment sleeve 7 is arranged on the support base plate 1 and above the support base plate 1, and the fixed partition 8 is arranged in the height adjustment On the sleeve 7 and in the height adjustment sleeve 7, the height adjustment screw 9 is rotatably connected to the height adjustment sleeve 7 and is rotatably connected to the fixed partition 8, and the height adjustment worm 10 is rotatably connected to the device. The height adjustment sleeve 7 is arranged on and through the height adjustment sleeve 7, the height adjustment knob 11 is arranged on the height adjustment worm 10 and outside the height adjustment sleeve 7, and the height adjustment worm gear 12 is arranged on the height adjustment screw 9 and is arranged in engagement with the height adjustment worm 10, the height adjustment sleeve rod 13 is plugged and connected to the height adjustment sleeve 7 and is threadedly connected to the height adjustment screw 9. In order to realize the function of height adjustment, when When the height of the device needs to be adjusted, the user turns the height adjustment knob 11, the height adjustment knob 11 drives the height adjustment worm 10 to rotate, the height adjustment worm 10 drives the height adjustment worm wheel 12 to rotate through gear transmission, and the height adjustment worm wheel 12 drives the height adjustment screw. 9, the height adjustment screw 9 drives the height adjustment sleeve rod 13 threadedly connected to the height adjustment screw 9 to move up or down along the height adjustment sleeve 7, so that the height of the device changes, thereby facilitating the adjustment of equipment of different heights. Take measurements.

As shown in FIG. 1 , FIG. 4 , FIG. 5 and FIG. 6 , the inclination adjustment assembly 3 includes an adjustment ball seat 14 , a ball 15 , an inclination adjustment ball 16 , a pressing bolt 17 and a fixing rod 18 . The adjustment ball The seat 14 is arranged on the height adjustment sleeve 13 and above the height adjustment sleeve 13, the ball 15 is arranged on the adjustment ball seat 14 and is arranged in the adjustment ball seat 14, and the inclination adjustment ball 16 is arranged on the The adjusting ball seat 14 is arranged on and inside the adjusting ball seat 14 , the abutting bolt 17 is screwed on the adjusting ball seat 14 , the fixing rod 18 is disposed on the inclination adjusting ball 16 , and the rotation adjusting assembly 4 It includes a rotating fixing base 19, a rotating adjusting worm 20, a rotating adjusting shaft 21, a rotating adjusting knob 22, a rotating adjusting worm wheel 23 and a rotating platen 24. The rotating fixing base 19 is arranged on the fixing rod 18, and the rotating adjusting worm 20 The rotating connection is arranged on the rotating fixing base 19 , the rotation adjusting shaft 21 is rotatably connected to the rotating fixing base 19 and is arranged through the rotating fixing base 19 , and the rotating adjusting knob 22 is arranged on the rotating adjusting shaft 21 and is arranged on the rotating fixing base 19 . Outside the fixed seat 19 , the rotation adjustment worm wheel 23 is arranged on the rotation adjustment shaft 21 and is arranged in engagement with the rotation adjustment worm 20 , and the rotation platen 24 is hingedly arranged on the rotation fixed seat 19 and is arranged on the rotation adjustment worm 20 . , when it is necessary to measure equipment in different orientations, first, the user unscrews the abutting bolts 17 outwards, so that the inclination adjusting ball 16 changes from a tight and fixed state to a movable state, and then adjusts the ball seat 14 by adjusting the , the ball 15, the inclination adjustment ball 16 and the fixed rod 18 are used together to change the inclination angle. When the appropriate inclination angle is adjusted, the user tightens the bolt 17 to make the inclination adjustment ball 16 from the movable state. Then, the user rotates the rotation adjustment knob 22, the rotation adjustment knob 22 drives the rotation adjustment shaft 21 to rotate, the rotation adjustment shaft 21 drives the rotation adjustment worm wheel 23 to rotate, and the rotation adjustment worm wheel 23 drives the rotation adjustment through gear transmission. The worm 20 rotates, and the rotating adjusting worm 20 drives the rotating platen 24 to rotate, so that the magnetic field sensor 6 fixed on the device rotates. It can be seen that by adjusting the inclination adjustment assembly 3 and the rotation adjustment assembly 4 at the same time, the The device can measure equipment in different orientations.

As shown in FIG. 1 , FIG. 3 and FIG. 6 , the clamping assembly 5 includes a fixing plate 25 , a clamping sliding rod 26 , a pressing plate 27 , a contact block 28 , an adjusting plate 29 , a clamping screw 30 and a clamping adjustment Knob 31, the fixing plate 25 is arranged on the rotating platen 24 and above the rotating platen 24, the clamping slide bar 26 is plugged and connected to the fixing plate 25, and the pressing plate 27 is arranged on the rotating platen 24. On the clamping slide bar 26 , the contact block 28 is provided on the abutting plate 27 , the adjusting plate 29 is provided on the clamping slide bar 26 , and the clamping screw rod 30 is threadedly connected to the fixing plate 25 and is hinged Set on the pressing plate 27 and rotatably connected to the adjusting plate 29, the clamping adjustment knob 31 is set on the clamping screw 30, when the magnetic field sensor 6 needs to be installed, first, the user will put the magnetic field sensor 6 It is placed at the central position of the upper surface of the rotary table 24. After that, the user turns the clamping adjustment knob 31, and the clamping adjustment knob 31 drives the clamping screw 30 to rotate, so that the four sets of abutting plates 27 face the magnetic field from four directions. The sensor 6 is fixed, which facilitates the installation of the magnetic field sensor 6. In the fixing process, since the contact block 28 is made of rubber material, and the rubber has a high friction coefficient and relatively soft characteristics, it can not only improve the fixing effect It becomes better and can avoid the damage of the magnetic field sensor 6 during the fixing process. When the magnetic field sensor 6 needs to be disassembled, the user rotates the clamping adjustment knob 31 in the opposite direction to keep the four sets of abutting plates 27 away from the magnetic field sensor. 6, so that the magnetic field sensor 6 is no longer fixed by the clamping assembly 5, thereby facilitating the disassembly of the magnetic field sensor 6. It can be seen that by adjusting the clamping assembly 5, the device is convenient to install and install the magnetic field sensor 6. Disassembly is convenient for users to replace the magnetic field sensor.

As shown in FIGS. 1-6 , the ball 15 is provided between the adjusting ball seat 14 and the inclination adjusting ball 16 , and the rotating adjusting worm 20 is provided between the rotating fixing seat 19 and the rotating platen 24 . The plate 25 is arranged between the pressing plate 27 and the adjusting plate 29, the height adjusting screw 9 is vertically arranged with the support base plate 1, the height adjusting screw 9 is vertically arranged with the fixed partition 8, and the height adjusting worm 10 The height adjustment screw 9 is arranged vertically, the clamping screw 30 is arranged in parallel with the clamping slide bar 26, the support base 1 is arranged in a rectangular plate shape, the balls 15 are provided with several groups, and the fixing plate 25 There are four groups, the number of the clamping slide bars 26 is twice the number of the fixing plates 25, the number of the abutting plates 27 is the same as the number of the fixing plates 25, and the number of the contact blocks 28 is the same as the number of the fixing plates The number of the adjusting plates 29 is the same as the number of the fixing plates 25 , the number of the clamping screws 30 is the same as the number of the fixing plates 25 , and the contact block 28 is made of rubber material.

In specific use, the user adjusts the height adjustment component 2 to change the height of the device, so that the device can measure equipment with different heights. Adjustment, so that the device can measure equipment in different orientations, and by adjusting the clamping assembly 5, it is convenient for the user to install and disassemble the magnetic field sensor 6, so as to facilitate the replacement of the magnetic field sensor 6, the above is The entire closed-loop magnetic field sensor runs the fixture usage process.

It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

The present invention and the embodiments thereof have been described above, and the description is not restrictive, and what is shown in the accompanying drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. All in all, if those of ordinary skill in the art are inspired by it, without departing from the purpose of the present invention, and without creatively designing the structural modes and embodiments similar to the technical scheme, all should belong to the protection of the present invention. scope.

Claims (8)

1. A closed-loop magnetic field sensor operation fixing device is characterized in that: comprises a supporting bottom plate, a height adjusting component, an inclination adjusting component, a rotary adjusting component, a clamping component and a magnetic field sensor, wherein the height adjusting component is arranged on the supporting bottom plate and above the supporting bottom plate, the inclination adjusting component is arranged on the height adjusting component and above the height adjusting component, the rotary adjusting component is arranged on the inclination adjusting component and above the inclination adjusting component, the clamping component is arranged on the rotary adjusting component and above the rotary adjusting component, the magnetic field sensor is arranged on the rotary adjusting component and above the clamping component, the height adjusting component comprises a height adjusting sleeve, a fixed clapboard, a height adjusting screw rod, a height adjusting worm, a height adjusting knob, a height adjusting worm wheel and a height adjusting sleeve rod, the height adjusting sleeve is arranged on the supporting bottom plate and above the supporting bottom plate, the height adjusting worm is connected on locating the height adjusting sleeve and runs through the height adjusting sleeve setting, height adjusting knob locates on the height adjusting worm and locates outside the height adjusting sleeve, the height adjusting worm wheel is located on the height adjusting screw and is the meshing setting with the height adjusting worm, height adjusting loop bar plug is connected and is located on the height adjusting sleeve and threaded connection locates on the height adjusting screw.

2. The closed-loop magnetic field sensor operation fixing device as claimed in claim 1, wherein: the inclination adjusting component comprises an adjusting ball seat, a ball, an inclination adjusting ball, a tightening bolt and a fixed rod, the adjusting ball seat is arranged on the height adjusting loop bar and above the height adjusting loop bar, the ball is arranged on the adjusting ball seat and in the adjusting ball seat, the inclination adjusting ball is arranged on the adjusting ball seat and in the adjusting ball seat, the tightening bolt is in threaded connection with the adjusting ball seat, the fixed rod is arranged on the inclination adjusting ball, the rotation adjusting component comprises a rotation fixing seat, a rotation adjusting worm, a rotation adjusting rotating shaft, a rotation adjusting knob, a rotation adjusting worm wheel and a rotating platform, the rotation fixing seat is arranged on the fixed rod, the rotation adjusting worm is in rotation connection with the rotation fixing seat, the rotation adjusting rotating shaft is in rotation connection with the rotation fixing seat and penetrates through the rotation fixing seat, the rotation adjusting knob is arranged on the rotation adjusting rotating shaft and outside the rotation fixing seat, the rotation adjusting worm wheel is arranged on the rotation adjusting rotating shaft and meshed with the rotation adjusting worm, and the rotating base plate is hinged on the rotation fixing base and arranged on the rotation adjusting worm.

3. The closed-loop magnetic field sensor operation fixing device as claimed in claim 2, wherein: the clamping assembly comprises a fixed plate, a clamping slide bar, a clamping plate, a contact block, an adjusting plate, a clamping screw and a clamping adjusting knob, the fixed plate is arranged on the rotating bedplate and above the rotating bedplate, the clamping slide bar is connected to the fixed plate in a plugging and pulling manner, the clamping plate is arranged on the clamping slide bar, the contact block is arranged on the clamping plate, the adjusting plate is arranged on the clamping slide bar, the clamping screw is connected to the fixed plate in a threaded manner, is hinged to the clamping plate and is arranged on the adjusting plate in a rotating manner, and the clamping adjusting knob is arranged on the clamping screw.

4. The closed-loop magnetic field sensor operation fixing device as claimed in claim 3, wherein: the ball is located between adjusting ball seat and the gradient adjusting ball, rotatory adjusting worm is located between rotatory fixing base and the revolving stage board, the fixed plate is located and is supported tightly between board and the regulating plate.

5. The closed-loop magnetic field sensor operation fixing device as claimed in claim 4, wherein: the height adjusting screw is perpendicular to the supporting bottom plate, the height adjusting screw is perpendicular to the fixed partition plate, the height adjusting worm is perpendicular to the height adjusting screw, and the clamping screw is parallel to the clamping slide bar.

6. The closed-loop magnetic field sensor operation fixing device as claimed in claim 5, wherein: the supporting bottom plate is arranged in a rectangular plate shape.

7. The closed-loop magnetic field sensor operation fixing device as claimed in claim 6, wherein: the ball is equipped with a plurality of groups, the fixed plate is equipped with four groups, the quantity of centre gripping slide bar is the twice of the quantity of fixed plate, the quantity of propping tight board is unanimous with the quantity of fixed plate, the quantity of contact piece is unanimous with the quantity of fixed plate, the quantity of regulating plate is unanimous with the quantity of fixed plate, the quantity of centre gripping screw rod is unanimous with the quantity of fixed plate.

8. The closed-loop magnetic field sensor operation fixing device of claim 7, wherein: the contact block is made of rubber.

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