CN116417208B - Initial position adjustable zeroing clamp for small hollow shaft angular displacement potentiometer - Google Patents
Initial position adjustable zeroing clamp for small hollow shaft angular displacement potentiometer Download PDFInfo
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- CN116417208B CN116417208B CN202310681752.8A CN202310681752A CN116417208B CN 116417208 B CN116417208 B CN 116417208B CN 202310681752 A CN202310681752 A CN 202310681752A CN 116417208 B CN116417208 B CN 116417208B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
- H01C17/22—Apparatus or processes specially adapted for manufacturing resistors adapted for trimming
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C10/00—Adjustable resistors
- H01C10/30—Adjustable resistors the contact sliding along resistive element
- H01C10/32—Adjustable resistors the contact sliding along resistive element the contact moving in an arcuate path
- H01C10/34—Adjustable resistors the contact sliding along resistive element the contact moving in an arcuate path the contact or the associated conducting structure riding on collector formed as a ring or portion thereof
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
- H01C17/22—Apparatus or processes specially adapted for manufacturing resistors adapted for trimming
- H01C17/235—Initial adjustment of potentiometer parts for calibration
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Abstract
The invention discloses an adjustable zero setting clamp for an initial position of a small hollow shaft angular displacement potentiometer, which belongs to the technical field of production of angular displacement potentiometers and comprises a base, a positioning cover, a rotary table and a reset pressure spring, wherein the lower end of the positioning cover is connected with the upper part of the base, an installation groove and a positioning groove are formed in the upper surface of the positioning cover, an adjusting rotary shaft is arranged on the rotary table, the rotary table is arranged in the positioning cover and penetrates through a positioning cover through hole, the reset pressure spring is arranged below the rotary table, the positioning cover is provided with a plurality of positioning cover convex columns, a positioning cover clamping groove is formed between two adjacent positioning cover convex columns, the base is provided with a plurality of base convex columns, a base clamping groove is formed between two adjacent base convex columns, and the rotary table is provided with a rotary table convex column which can be respectively contacted with the positioning cover convex columns and the base convex columns. The invention realizes the purpose that one zeroing fixture meets the application requirements of different zeroing initial positions of different angular displacement potentiometers, obviously improves the universality of the fixture, reduces the cost and is convenient to use and manage.
Description
Technical Field
The invention belongs to the technical field of production of angular displacement potentiometers (also called angular displacement sensors), and particularly relates to an initial position adjustable zeroing clamp for a small hollow shaft angular displacement potentiometer.
Background
The function of an angular displacement potentiometer (also called an angular displacement sensor) is to convert the angular displacement of a mechanical rotation into an electrical signal corresponding to the change and to be detected in real time. With the development of science and technology, the angular displacement potentiometer is widely applied to the fields of industry, ships, aviation, aerospace and other complete machines, precise instruments and meters and the like, which have higher technical indexes on high precision and long service life and are required to meet various severe test requirements.
The angular displacement potentiometer based on the conductive plastic resistor is a mainstream angular displacement potentiometer, and the small hollow shaft angular displacement potentiometer is widely used because of the extremely small volume, for example, as shown in fig. 1 and 2, the small hollow shaft angular displacement potentiometer comprises a potentiometer shell 1, a potentiometer cover plate 2, a potentiometer rotating shaft 4, a resistor 10, an insulating sleeve 9, a collecting ring 8 and an electric brush 7, wherein the potentiometer shell 1 and the potentiometer cover plate 2 are connected with each other, two opposite sides of the potentiometer shell 1 are provided with convex mounting parts 3, the potentiometer rotating shaft 4 is provided with central through holes 5 (in the figure, a shape with a plane is arranged on the basis of a circular hole wall), two ends of the potentiometer rotating shaft 4 are arranged in the corresponding through holes on the potentiometer shell 1 and the corresponding through holes on the potentiometer cover plate 2 and can freely rotate, the resistor 10 is arranged in the potentiometer shell 1, the insulating sleeve 9 is sleeved on the potentiometer rotating shaft 4, the collecting ring 8 is arranged on the insulating sleeve 9, and the collecting ring 7 is arranged on the collecting ring 8 and is contacted with a working belt of the resistor 10. When the potentiometer is used, a rotating member such as a rotating shaft penetrates through the central through hole 5 of the potentiometer rotating shaft 4 and drives the potentiometer rotating shaft to synchronously rotate, so that the insulating sleeve 9, the collecting ring 8 and the electric brush 7 are driven to synchronously rotate, the electric brush 7 slides on the resistor body 10 in a contact manner, a changed electric signal is generated, and the electric signal is transmitted to an external controller through the lead wire 6, so that the aim of detecting the angular displacement is fulfilled.
In the later stage of production, the small hollow shaft angular displacement potentiometer needs to be subjected to zero adjustment, namely, the position where the electric brush 7 contacts one end of the working belt of the resistor body 10 is adjusted, the relative position between the electric brush 7 and the potentiometer rotating shaft 4 is fixed through gluing and other modes after the adjustment is accurate, and the clamp used for zero adjustment is a zeroing clamp.
As shown in fig. 3 and 4, the conventional zeroing fixture for the small hollow shaft angular displacement potentiometer comprises a fixture body 11, wherein a potentiometer sinking groove 12, a potentiometer positioning sinking groove 14 and a lead sinking groove 15 are arranged on one side surface of the fixture body 11, the two potentiometer positioning sinking grooves 14 are respectively positioned on two opposite sides outside the potentiometer sinking groove 12 and are mutually communicated, the lead sinking groove 15 is communicated with outside the potentiometer sinking groove 12, and a positioning boss 13 with a convex radial section is arranged at the center of the bottom of the potentiometer sinking groove 12. As shown in fig. 5 and 6, when in use, the potentiometer shell 1 of the small hollow shaft angular displacement potentiometer is placed in the potentiometer sink 12, the two mounting parts 3 are respectively placed in the two potentiometer positioning sinks 14, the lead 6 is placed in the lead sink 15, and the positioning boss 13 is inserted into the potentiometer rotating shaft 4, so that the positioning of the potentiometer shell 1 and the potentiometer rotating shaft 4 is realized simultaneously; then the position of the brush 7 contacting with one end of the working belt of the resistor body 10 can be adjusted in the uncapping state, and after the adjustment is accurate, the relative position between the brush 7 and the potentiometer rotating shaft 4 is fixed by means of gluing and the like, so that the zeroing function is completed.
The conventional zeroing fixture has the following defects:
because the structure of the zeroing fixture is fixed, the zeroing initial position of the small hollow shaft angular displacement potentiometer is fixed and cannot be adjusted, and the zeroing initial position is the relative angular position between the potentiometer rotating shaft 4 and the potentiometer shell 1 before zeroing; in practical application, the zero-setting initial positions of the small hollow shaft angular displacement potentiometers are not all the same, and can be changed in various ways according to application requirements, and the minimum angle base of the change is generally between 5 and 20 degrees, and is 10 degrees at most. In order to meet the requirement of multiple changes of the zeroing starting position, only a plurality of clamps with different structures are prepared, so that the cost is increased, and the use and management are inconvenient.
Disclosure of Invention
The invention aims to solve the problems and provide the starting position adjustable zeroing clamp for the small hollow shaft angular displacement potentiometer, which can adapt to various changing requirements of the zeroing starting position.
The invention realizes the above purpose through the following technical scheme:
the utility model provides an adjustable zero setting clamp of initial position for small-size hollow axle angular displacement potentiometer, including the base, still include locating cover, carousel and pressure spring that resets, the locating cover be one end opening, the other end confined barrel and regard its open end as the lower extreme of locating cover, regard its blind end as the upper end of locating cover, the lower extreme of locating cover with the upper portion of base is connected, the upper surface middle part of locating cover is equipped with the mounting groove that sinks, the upper surface of locating cover is located the position of mounting groove both sides relatively is equipped with the locating groove that sinks respectively, the tank bottom middle part of mounting groove is equipped with vertical through-hole of locating cover, disc and central line be vertical the last central point of carousel is equipped with vertical regulation pivot, the radial cross-section of regulation pivot is non-circular, the carousel is arranged in the locating cover just the regulation pivot passes the locating cover through-hole, the vertical reset pressure spring is arranged between the upper surface of the base and the center position below the turntable, a plurality of outwards-protruded and axially vertical positioning cover convex columns are uniformly arranged on the circumferential inner wall surface of the upper part of the positioning cover, the lower end surfaces of the positioning cover convex columns are planes, an included angle of 10-60 degrees is formed between the lower end surfaces of the positioning cover convex columns and the vertical direction, an included angle a is formed between the lower end surfaces of the positioning cover convex columns, a positioning cover clamping groove is formed between two adjacent positioning cover convex columns, a plurality of upwards-protruded and axially vertical base convex columns are uniformly arranged on the upper surface of the base along the circumferential direction, an included angle of 10-60 degrees is formed between the upper end surfaces of the base convex columns and the vertical direction, an included angle b is formed between the upper end surfaces of the base convex columns, a base clamping groove is formed between the two adjacent base convex columns, the base convex columns and the positioning cover clamping grooves are vertically corresponding one to one, the base draw-in grooves and the positioning cover convex columns are vertically corresponding one by one, the circumferential outer wall surface of the rotary table is provided with a rotary table convex column which is outwards convex and axially vertical, the upper end surface of the rotary table convex column is a plane, an included angle with an angle a is formed between the upper end surface of the rotary table convex column and the vertical, the upper end surface of the rotary table convex column is parallel to the lower end surface of the positioning cover convex column, an included angle with an angle b is formed between the lower end surface of the rotary table convex column and the vertical, the included angle between the upper end surface of the rotary table convex column and the lower end surface of the rotary table convex column is not smaller than 60 degrees, the upper end surface of the rotary table convex column can be in contact with the lower end surface of the positioning cover convex column when the rotary table convex column moves downwards, and the lower end surface of the rotary table convex column can be in contact with the upper end surface of the base convex column.
As the preference, in order to be convenient for know the real-time angle of adjusting pivot and carousel's rotation angle that zeroes initial position was adjusted promptly, the lower surface of base is equipped with concave and is circular base recess, the tank bottom middle part of base recess is equipped with vertical and upwards link up the base through-hole, the base apron is installed to the lower extreme of base recess, lie in the carousel the position of adjusting the pivot below is equipped with vertical and downwardly link up the carousel blind hole, the radial cross-section of carousel blind hole is non-circular, and the well upper segment of vertical transfer line is arranged in the carousel blind hole and its radial cross-section is non-circular, the transfer line passes reset the central through-hole of pressure spring, the lower segment of transfer line passes base through-hole and its radial cross-section is circular, the lower extreme of transfer line is connected with the first end in the horizontal pointer both ends, the second end in the pointer both ends is close to the cell wall of base recess, the tank bottom of base recess is close to the position of circumference edge evenly is equipped with the angle scale or the position along circumference scale on the apron is evenly is equipped with along circumference scale.
Preferably, in order to facilitate direct observation and adjustment of the rotation angle of the rotating shaft and the turntable, the base cover plate is a transparent cover plate, or the base is a transparent base and the positioning cover is a transparent cover.
Preferably, in order to improve transmission precision and reliably vertically limit the pointer, the transmission rod is integrally formed with the pointer, an upward protruding limit boss is arranged on the first end of the pointer, the outer diameter of the limit boss is larger than that of the lower section of the transmission rod, a downward protruding limit cone is arranged below the first end of the pointer, and the lower end of the limit cone is a small end.
Preferably, in order to facilitate easy rotation of the adjustment shaft when the adjustment shaft is pressed, the a and b are the same and are both 30-40 °.
According to actual needs, the number of the turntable convex columns is two and the turntable convex columns are symmetrically arranged on the circumferential outer wall of the turntable; or the number of the turntable convex columns, the positioning cover convex columns and the base convex columns is the same.
Preferably, in order to facilitate positioning of the casing of the diagonal displacement potentiometer, screw holes are respectively formed in positions, located on two sides of each positioning groove, of the upper surface of the positioning cover, four locking screws respectively penetrate through holes in one ends of the four pressing pieces and then are connected with the four screw holes, and the other ends of the pressing pieces can be located above the corresponding positioning grooves after rotating.
Preferably, in order to facilitate the positioning of the housing of the fast diagonal displacement potentiometer, the pressing piece is an elastic piece.
The invention has the beneficial effects that:
according to the invention, through designing the mutually matched positioning cover, the turntable and the reset pressure spring, the angular displacement potentiometer is only required to be installed on the positioning cover and positioned through the positioning groove during application, then the turntable convex column is driven to move downwards by pressing the upper end of the adjusting rotary shaft, the adjusting rotary shaft and the turntable rotate together under the cooperation of the lower end surface of the turntable convex column and the upper end surface of the base convex column, after the pressing force is released, the elastic force of the reset pressure spring pushes the turntable to move upwards, so that the turntable convex column is driven to move upwards, the adjusting rotary shaft and the turntable rotate together in the same direction under the cooperation of the upper end surface of the turntable convex column and the lower end surface of the positioning cover convex column, after the turntable convex column enters the corresponding positioning cover clamping groove and is limited, the angle of a basic unit is adjusted, the changing angle is the minimum angle base (such as 5 degrees or 10 degrees) of the change of the zero-setting initial position of the angular displacement potentiometer, the application requirements of different zero-setting initial position of different angular displacement potentiometers can be met through multiple pressing, the zero-setting clamp can meet the application requirements of different zero-setting initial position of different angular displacement potentiometers, the application requirements are remarkably improved, the zero-setting clamp is convenient to use, and the management cost is remarkably lowered.
Drawings
FIG. 1 is a schematic diagram of a front view of a small hollow shaft angular displacement potentiometer;
FIG. 2 is a cross-sectional view A-A in a schematic diagram of the front view of a small hollow shaft angular displacement potentiometer;
FIG. 3 is a schematic diagram of a front view of a conventional zeroing fixture for a small hollow shaft angular displacement potentiometer;
FIG. 4 is a cross-sectional view B-B in a schematic diagram of the front view of a conventional zeroing fixture for a small hollow shaft angular displacement potentiometer;
FIG. 5 is a schematic diagram of a front view of a small hollow shaft angular displacement potentiometer mounted on a conventional zeroing fixture;
FIG. 6 is a cross-sectional view C-C in a schematic diagram of a front view of a small hollow shaft angular displacement potentiometer mounted on a conventional zeroing fixture;
FIG. 7 is a schematic diagram of a front view of a start position adjustable zeroing fixture for a small hollow shaft angular displacement potentiometer of the present invention with locking screws and tabs removed;
FIG. 8 is a D-D sectional view in a schematic diagram of a front view of a start position adjustable zeroing fixture for a small hollow shaft angular displacement potentiometer of the present invention with the locking screw and the press piece removed;
FIG. 9 is a schematic view of a partially cut-away perspective view of a start position adjustable zeroing fixture for a small hollow shaft angular displacement potentiometer of the present invention with the locking screw and the press piece removed;
FIG. 10 is a schematic top view of a small hollow shaft angular displacement potentiometer mounted on a start position adjustable zeroing fixture for a small hollow shaft angular displacement potentiometer according to the present invention;
fig. 11 is an enlarged view of section E-E of a schematic top view of a small hollow shaft angular displacement potentiometer mounted on the adjustable zero setting clamp for the start position of the small hollow shaft angular displacement potentiometer of the present invention.
In the figure, 1-potentiometer housing, 2-potentiometer cover plate, 3-mounting part, 4-potentiometer rotating shaft, 5-center through hole, 6-lead wire, 7-brush, 8-collector ring, 9-insulating sleeve, 10-resistor body, 11-fixture body, 12-potentiometer sink, 13-positioning boss, 14-potentiometer sink, 15-lead wire sink, 16-adjusting rotating shaft, 17-positioning cover, 18-base, 19-positioning cover boss, 20-base boss, 21-positioning groove, 22-mounting groove, 23-turntable blind hole, 24-transmission rod, 25-reset pressure spring, 26-turntable, 27-turntable boss, 28-base groove, 29-limit boss, 30-limit cone, 31-pointer, 32-base cover plate, 33-screw hole, 34-positioning cover clamping groove, 35-positioning cover boss 19 lower end surface, 36-upper end surface of turntable boss 27, 37-base boss 20 upper end surface, 38-base clamping groove, 39-screw, 40-pressing piece.
Description of the embodiments
The invention is further described below with reference to the accompanying drawings:
as shown in fig. 7-9, the adjustable zero setting clamp for the initial position of the small hollow shaft angular displacement potentiometer of the invention comprises a base 18, a positioning cover 17, a rotary table 26 and a reset pressure spring 25, wherein the positioning cover 17 is a cylinder with one end open and the other end closed, the open end of the positioning cover is taken as the lower end of the positioning cover 17, the closed end of the positioning cover is taken as the upper end of the positioning cover 17, the lower end of the positioning cover 17 is connected with the upper part of the base 18, the middle part of the upper surface of the positioning cover 17 is provided with a sunk mounting groove 22, the positions on the upper surface of the positioning cover 17, which are positioned on two opposite sides of the mounting groove 22, are respectively provided with sunk positioning grooves 21, the middle part of the bottom of the mounting groove 22 is provided with a vertically through positioning cover through hole (not marked in the figure), the center position on the disc-shaped rotary table 26 with a vertical adjusting rotary shaft 16 is arranged at the center of the upper surface of the disc-shaped center line, and the two are integrally formed, the radial section of the adjusting rotating shaft 16 is non-circular (the radial section shape is the same as that of the central through hole 5 of the potentiometer rotating shaft 4 in fig. 1), the turntable 26 is arranged in the positioning cover 17, the adjusting rotating shaft 16 passes through the positioning cover through hole, the vertical resetting pressure spring 25 is arranged between the upper surface of the base 18 and the central position below the turntable 26, the surface of the inner wall of the upper circumference of the positioning cover 17 is uniformly provided with a plurality of convex and vertical positioning cover convex columns 19, the lower end surface 35 of the positioning cover convex columns 19 is planar and forms an included angle of 10-60 degrees with the vertical direction and forms an included angle a, a positioning cover clamping groove 34 is formed between two adjacent positioning cover convex columns 19, the upper surface of the base 18 is uniformly provided with a plurality of convex and vertical base convex columns 20 along the circumferential direction, the upper end surfaces 37 of the base bosses 20 are plane and have an included angle of 10-60 degrees with the vertical direction and the included angle is set as b, base clamping grooves 38 are formed between two adjacent base bosses 20, the base bosses 20 are in one-to-one vertical correspondence with the positioning cover clamping grooves 34, the base clamping grooves 38 are in one-to-one vertical correspondence with the positioning cover bosses 19, the circumferential outer wall surfaces of the turnplate 26 are provided with turnplate bosses 27 which are convex outwards and axially vertical, the upper end surfaces 36 of the turnplate bosses 27 are plane and have an included angle of a with the vertical direction and are parallel to the lower end surfaces 35 of the positioning cover bosses 19, the lower end surfaces (not marked in the figure) of the turnplate bosses 27 are plane and have an included angle of b with the vertical direction and are parallel to the upper end surfaces 37 of the base bosses 20, the included angle between the upper end surfaces 36 of the turnplate bosses 27 and the lower end surfaces of the turnplate bosses 27 is not less than 60 degrees, the upper end surfaces 36 of the turnplate bosses 27 can be in contact with the lower end surfaces 35 of the positioning cover bosses 19 when the turnplate bosses 27 move upwards, and the turnplate bosses 27 can be in contact with the upper end surfaces 37 of the lower end surfaces of the turnplate bosses 20 when the turnplate bosses 27 move downwards.
As shown in fig. 7-9, the present invention also discloses a number of more optimal specific configurations:
in order to facilitate real-time understanding of the rotation angle of the adjusting spindle 16 and the turntable 26, that is, the real-time angle of the zero setting start position adjustment, the lower surface of the base 18 is provided with a concave and circular base groove 28, the middle part of the bottom of the base groove 28 is provided with a vertical and upward through base through hole (not marked in the figure), the lower end of the base groove 28 is provided with a base cover plate 32, the position, located below the adjusting spindle 16, of the turntable 26 is provided with a vertical and downward through turntable blind hole 23, the radial cross section of the turntable blind hole 23 is non-circular, the middle upper section of the vertical transmission rod 24 is arranged in the turntable blind hole 23 and the radial cross section thereof is non-circular, the transmission rod 24 passes through the central through hole of the reset pressure spring 25, the lower section of the transmission rod 24 passes through the base through hole and the radial cross section thereof is circular, the lower end of the transmission rod 24 is connected with the first ends of the two ends of the transverse pointer 31, the second ends of the two ends of the pointer 31 are close to the wall of the base groove 28, the bottom of the base groove 28 is evenly provided with angle scales (not visible in the figure) along the circumferential edge, or the position, close to the circumferential edge of the base groove 28 is evenly provided with angle scales along the circumferential edge (not visible in the figure) along the circumferential direction.
To facilitate direct viewing of the rotation angle of the adjustment shaft 16 and the turntable 26, the base cover 32 is a transparent cover, or the base 18 is a transparent base and the positioning cover 17 is a transparent cover.
In order to improve the transmission precision and reliably and vertically limit the pointer 31, the transmission rod 24 and the pointer 31 are integrally formed, an upward protruding limit boss 29 is arranged on the first end of the pointer 31, the outer diameter of the limit boss 29 is larger than the outer diameter of the lower section of the transmission rod 24, a downward protruding limit cone 30 is arranged below the first end of the pointer 31, and the lower end of the limit cone 30 is a small end.
In order to facilitate easy rotation of the adjustment shaft 16 when the adjustment shaft 16 is pressed, the a and b are the same and are each 30-40 °.
According to actual needs, the number of the turntable convex columns 27 is two and symmetrically arranged on the circumferential outer wall of the turntable 26; alternatively, the number of turntable posts 27, positioning cover posts 19, and base posts 20 is the same.
In order to facilitate the positioning of the housing of the diagonal displacement potentiometer, screw holes 33 are respectively arranged at positions on two sides of each positioning groove 21 in the upper surface of the positioning cover 17, four locking screws 39 respectively penetrate through holes at one ends of four pressing pieces 40 and then are connected with the four screw holes 33, and the other ends of the pressing pieces 40 can be positioned above the corresponding positioning grooves 21 after rotating.
As shown in fig. 10 and 11, in use, the potentiometer housing 1 of the small hollow shaft angular displacement potentiometer is placed in the mounting groove 22 of the zeroing fixture, meanwhile, the adjusting rotating shaft 16 passes through the central through hole of the potentiometer rotating shaft 4, the two mounting parts 3 are respectively placed in the two positioning grooves 21, the four pressing sheets 40 are rotated (if the four pressing sheets cannot be directly rotated, the locking screw 39 is firstly loosened) and pressed against the two mounting parts 3, so that the positioning of the potentiometer housing 1 and the potentiometer rotating shaft 4 is realized simultaneously; then the position of the brush 7 contacting with one end of the working belt of the resistor body 10 can be adjusted in the uncapping state, and after the adjustment is accurate, the relative position between the brush 7 and the potentiometer rotating shaft 4 is fixed by means of gluing and the like, so that the zeroing function is completed.
If the zeroing initial position of the angular displacement potentiometer actually required to be zeroed is not in line with the zeroing clamp, the upper end of the adjusting rotating shaft 16 is pressed by hands to drive the rotating disc convex column 27 to move downwards, under the cooperation of the lower end surface of the rotating disc convex column 27 and the upper end surface 37 of the base convex column 20, the adjusting rotating shaft 16 rotates together with the rotating disc 26, the adjusting rotating shaft 16 moves downwards and cannot rotate or move any more in the base clamping groove 38, at the moment, the pressing of the adjusting rotating shaft 16 is released, the elastic force of the reset pressure spring 25 pushes the rotating disc 26 to move upwards, thereby driving the rotating disc convex column 27 to move upwards, under the cooperation of the upper end surface 36 of the rotating disc convex column 27 and the lower end surface 35 of the positioning cover convex column 19, the adjusting rotating shaft 16 rotates along the same direction with the rotating disc 26, after the rotating disc convex column 27 enters the corresponding positioning cover clamping groove 34 to be limited, the angle of a basic unit is completed, the changing angle is the minimum angle (such as 5 DEG or 10 DEG, etc.), the upper end of the adjusting rotating shaft 16 can be pressed repeatedly, the changing angle can meet the requirements of different zeroing initial positions of the potentiometers by observing the different rotating shaft, and the different requirements of the base can be realized by the different zeroing initial positions, and the requirements of the base can be realized by the different zeroing requirements of the base, the different zeroing position can be realized, the requirements of the zero-changing the base position can be realized, and the different zeroing device can be realized, and the different potential can be realized, and the different potential position can be realized by the different real-time, and the different potential device can be realized.
The above embodiments are only preferred embodiments of the present invention, and are not limiting to the technical solutions of the present invention, and any technical solution that can be implemented on the basis of the above embodiments without inventive effort should be considered as falling within the scope of protection of the patent claims of the present invention.
Claims (7)
1. A zero setting anchor clamps with adjustable be used for small-size hollow axle angular displacement potentiometer's start position, includes base, its characterized in that: the positioning cover is a cylinder body with one open end and the other closed end, the open end of the positioning cover is used as the lower end of the positioning cover, the closed end of the positioning cover is used as the upper end of the positioning cover, the lower end of the positioning cover is connected with the upper part of the base, the middle part of the upper surface of the positioning cover is provided with a sunk mounting groove, the positions, which are positioned on two opposite sides of the mounting groove, in the upper surface of the positioning cover are respectively provided with a sunk positioning groove, the middle part of the bottom of the mounting groove is provided with a vertically through positioning cover through hole, the center line of the disc is vertical, the upper center position of the turntable is provided with a vertical adjusting rotating shaft, the radial section of the adjusting rotating shaft is non-circular, the turntable is arranged in the positioning cover, the adjusting rotating shaft penetrates through the positioning cover through hole, the vertical reset pressure spring is arranged between the upper surface of the base and the center position below the turntable, a plurality of outwards-protruded and axially vertical positioning cover convex columns are uniformly arranged on the circumferential inner wall surface of the upper part of the positioning cover, the lower end surfaces of the positioning cover convex columns are planes, an included angle of 10-60 degrees is formed between the lower end surfaces of the positioning cover convex columns and the vertical direction, an included angle a is formed between the lower end surfaces of the positioning cover convex columns, a positioning cover clamping groove is formed between two adjacent positioning cover convex columns, a plurality of upwards-protruded and axially vertical base convex columns are uniformly arranged on the upper surface of the base along the circumferential direction, an included angle of 10-60 degrees is formed between the upper end surfaces of the base convex columns and the vertical direction, an included angle b is formed between the upper end surfaces of the base convex columns, a base clamping groove is formed between the two adjacent base convex columns, a plurality of base convex columns are in one-to-one vertical correspondence with the positioning cover clamping grooves, a plurality of base clamping grooves are in one-to-one vertical correspondence with the positioning cover convex columns, the circumference outer wall surface of the turntable is provided with a turntable convex column which is convex and vertical in the axial direction, the upper end surface of the turntable convex column is a plane, an included angle with the vertical direction is an angle a, the included angle with the vertical direction is parallel to the lower end surface of the positioning cover convex column, the lower end surface of the turntable convex column is a plane, an included angle with the vertical direction is an angle b, the included angle between the upper end surface of the turntable convex column and the lower end surface of the base convex column is not less than 60 degrees, the upper end surface of the turntable convex column can be contacted with the lower end surface of the positioning cover convex column when the turntable convex column moves upwards, and the lower end surface of the turntable convex column can be contacted with the upper end surface of the base convex column when the turntable convex column moves downwards; screw holes are respectively formed in the positions, located on two sides of each positioning groove, of the upper surface of the positioning cover, four locking screws respectively penetrate through holes in one end of each pressing piece and then are connected with the four screw holes, and the other end of each pressing piece can be located above the corresponding positioning groove after rotating.
2. The start position adjustable zeroing fixture for a small hollow shaft angular displacement potentiometer according to claim 1, wherein: the lower surface of base is equipped with concave and is circular shape base recess, the tank bottom middle part of base recess is equipped with vertical and upwards link up the base through-hole, the base apron is installed to the lower extreme of base recess, be located in the carousel the position of adjusting the pivot below is equipped with vertical and downwardly link up carousel blind hole, the radial cross-section of carousel blind hole is non-circular, and the well section of vertical transfer line is arranged in the carousel blind hole and its radial cross-section is non-circular, the transfer line passes the central through-hole of pressure spring resets, the lower segment of transfer line passes base through-hole and its radial cross-section is circular, the lower extreme of transfer line is connected with first end in the horizontal pointer both ends, the second end in the pointer both ends is close to the cell wall of base recess, the tank bottom of base recess is close to the position of circumference edge evenly is equipped with the angle scale or the position on the base apron is close to circumference edge evenly is equipped with the angle scale along circumference.
3. The start position adjustable zeroing fixture for a small hollow shaft angular displacement potentiometer according to claim 2, wherein: the base cover plate is a transparent cover plate, or the base is a transparent base and the positioning cover is a transparent cover.
4. The start position adjustable zeroing fixture for a small hollow shaft angular displacement potentiometer according to claim 2, wherein: the transmission rod and the pointer are integrally formed, an upward protruding limiting boss is arranged on the first end of the pointer, the outer diameter of the limiting boss is larger than that of the lower section of the transmission rod, a downward protruding limiting cone is arranged below the first end of the pointer, and the lower end of the limiting cone is a small end.
5. The start position adjustable zeroing fixture for a small hollow shaft angular displacement potentiometer according to any one of claims 1-4, wherein: the a and b are the same and are both 30-40 degrees.
6. The start position adjustable zeroing fixture for a small hollow shaft angular displacement potentiometer according to any one of claims 1-4, wherein: the turntable convex columns are symmetrically arranged on the circumferential outer wall of the turntable; or the number of the turntable convex columns, the positioning cover convex columns and the base convex columns is the same.
7. The start position adjustable zeroing fixture for a small hollow shaft angular displacement potentiometer according to any one of claims 1-4, wherein: the tabletting is an elastic tablet.
Priority Applications (1)
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202067621U (en) * | 2011-05-31 | 2011-12-07 | 中国石油化工集团公司 | Potentiometer operating mechanism for well drilling |
| CN111768942A (en) * | 2020-07-03 | 2020-10-13 | 成都宏明电子股份有限公司 | Elastic transmission hollow installation type linear displacement potentiometer |
| CN113701622A (en) * | 2021-10-29 | 2021-11-26 | 成都宏明电子股份有限公司 | Concentric positioning device for testing return stroke difference of angular displacement potentiometer |
| CN218646354U (en) * | 2022-10-14 | 2023-03-17 | 深圳市志奋领科技有限公司 | A tool for correcting potentiometre angle |
| CN115891195A (en) * | 2022-10-24 | 2023-04-04 | 成都宏明电子股份有限公司 | Manufacturing method of high-precision angle displacement sensor |
| CN218864990U (en) * | 2022-10-24 | 2023-04-14 | 成都宏明电子股份有限公司 | Adjusting tool for manufacturing high-precision angle displacement sensor |
-
2023
- 2023-06-09 CN CN202310681752.8A patent/CN116417208B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202067621U (en) * | 2011-05-31 | 2011-12-07 | 中国石油化工集团公司 | Potentiometer operating mechanism for well drilling |
| CN111768942A (en) * | 2020-07-03 | 2020-10-13 | 成都宏明电子股份有限公司 | Elastic transmission hollow installation type linear displacement potentiometer |
| CN113701622A (en) * | 2021-10-29 | 2021-11-26 | 成都宏明电子股份有限公司 | Concentric positioning device for testing return stroke difference of angular displacement potentiometer |
| CN218646354U (en) * | 2022-10-14 | 2023-03-17 | 深圳市志奋领科技有限公司 | A tool for correcting potentiometre angle |
| CN115891195A (en) * | 2022-10-24 | 2023-04-04 | 成都宏明电子股份有限公司 | Manufacturing method of high-precision angle displacement sensor |
| CN218864990U (en) * | 2022-10-24 | 2023-04-14 | 成都宏明电子股份有限公司 | Adjusting tool for manufacturing high-precision angle displacement sensor |
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