Automatic angle searching table for digital potentiometer

Abstract

A digital potentiometer automatic angle searching table disclosed by the present invention comprises a supporting seat, the upper surface of the supporting seat is detachably provided with a digital potentiometer host and two digital potentiometer adjusting bases, and the upper surfaces of the two digital potentiometer adjusting bases are both provided with digital potentiometer rotating seats capable of being rotatably adjusted. A detection rotation supporting piece is detachably inserted in the middle of the digital potentiometer rotating seat, a rotation angle scale seat is fixed to the bottom of the digital potentiometer rotating seat, the bottom end of the rotation angle scale seat is rotatably inserted into the digital potentiometer adjusting base, a motor is fixed into the digital potentiometer adjusting base, and a rotation angle scale seat is fixed to the bottom end of the rotation angle scale seat. An adjusting worm is fixed to the output shaft end of the motor, and one side of the adjusting worm is connected with a rotating worm gear in an engaged mode. According to the invention, after the placed digital potentiometer is detected, the rotated rotation angle scale seat can be automatically rotated and reset, so that the preparation and operation time is shortened, and the detection efficiency of the digital positioner is improved.

Description

Technical Field

[0001] The invention relates to the technical field of digital potentiometers, in particular to an automatic angle-finding platform of a digital potentiometer. Background Art

[0002] The digital potentiometer automatic angle-finding stage is mainly used to realize the precise measurement and adjustment of the angle position. The digital potentiometer, also known as the digitally controlled programmable resistor, is a new type of CMOS digital and analog mixed signal processing integrated circuit, which replaces the traditional mechanical potentiometer. This digital potentiometer eliminates the resistor substrate and brush, and has the advantages of high adjustment accuracy, no noise, extremely long working life, and no mechanical wear. It is not only used for analog signal processing, such as volume adjustment, screen brightness adjustment, etc., but also can realize output adjustment function by driving the shaft. In the automatic control system, the digital potentiometer can realize accurate measurement of the angle position, and use the characteristic that the output feedback signal is linearly proportional to the angle change to realize accurate control of the circuit. Therefore, the application of the digital potentiometer automatic angle-finding stage is mainly to use these characteristics to realize accurate measurement and adjustment of the angle, and is widely used in various occasions that require precise angle control.

[0003] However, when the digital potentiometer is initially positioned at an angle, the angle is adjusted manually and needs to be manually reset after adjustment, which is time-consuming and results in low detection efficiency of the digital potentiometer. In addition, the support used in the detection of the digital potentiometer is only fixed from the bottom by fastening screws. Once the support is installed, there is a tilt, which will cause errors in the detection. Therefore, it does not meet the existing needs. In this regard, we propose an automatic angle-finding platform for digital potentiometers. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic angle-finding platform for a digital potentiometer, so as to solve the problem proposed in the above-mentioned background technology that when the digital potentiometer is initially positioned at an angle, the angle of the digital potentiometer is manually adjusted, and manual resetting is required after adjustment, which is time-consuming and results in low detection efficiency of the digital potentiometer. In addition, the support used when the digital potentiometer is tested is only fixed from the bottom by fastening screws. Once the support is tilted during installation, errors in detection will occur.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a digital potentiometer automatic angle-finding platform, comprising a support base, a digital potentiometer host and two digital potentiometer adjustment bases are detachably mounted on the upper surface of the support base, a rotatable and adjustable digital potentiometer rotating base is mounted on the upper surface of the two digital potentiometer adjustment bases, a detection rotating support is detachably plugged in the middle of the digital potentiometer rotating base, a rotating angle scale base is fixed at the bottom of the digital potentiometer rotating base, the bottom end of the rotating angle scale base is rotatably plugged in the inside of the digital potentiometer adjustment base, a motor is fixed inside the digital potentiometer adjustment base, an adjusting worm is fixed at the output shaft end of the motor, and one side of the adjusting worm is meshedly connected There is a rotating worm gear, the middle of the rotating worm gear passes through a fixed fishing gull rotating connection seat, an electromagnet is fixed on the upper end of the rotating connection seat, a rotating support rod is inserted and inserted axially through the rotating connection seat, the bottom end of the rotating support rod passes through the rotating connection seat and is rotatably connected to the support seat, a clockwork spring is installed between the outer side of the bottom end of the rotating support rod and the support seat, a rotating connection ring is fixed to the bottom end of the rotating angle scale seat, a magnetic ring is fixedly inlaid at the bottom end of the rotating connection ring, the magnetic ring and the electromagnet are fixed by magnetic adsorption, a support spring is provided between the rotating connection ring and the rotating connection seat, the support spring is sleeved on the outside of the rotating support rod, and the top end of the rotating support rod passes through the rotating connection ring and is fixed to the rotating angle scale seat.

[0006] Preferably, a guide support rod is detachably installed on the outer side of one end of the two digital potentiometer adjustment bases, and the guide support rod comprises a clamping U-shaped seat, and the clamping U-shaped seat is U-shaped and clamped on the outer side of the end of the digital potentiometer adjustment base, and a fixed support rod is fixedly installed on the outer side of the clamping U-shaped seat, and two load-bearing rods distributed up and down are fixed to the outer side of the top end of the fixed support rod, and a positioning arc plate is detachably installed on one end of the load-bearing rod, and four positioning rings are fixed on the inner surface of the positioning arc plate, and the axes of the four positioning rings pass through the center of the positioning arc plate, and the two adjacent positioning The angle between the ring axis pins is sixty degrees. Four receiving holes are provided inside the positioning arc plate. The four receiving holes correspond to the four positioning rings one by one and the axes coincide with each other. A positioning guide column is slidably installed on the inner side of the positioning ring. One end of the positioning guide column is located on the inner side of the receiving hole. A guiding positioning spring is fixed between the positioning guide column and the inner end face of the receiving hole. An assembly plug hole is provided through the middle of the positioning arc plate. A screw hole is provided at the end where the load-bearing rod is connected to the positioning arc plate. An assembly screw is inserted in the middle of the assembly plug hole. The threaded end of the assembly screw is screwed into the screw hole through a thread.

[0007] Preferably, a reinforcing support plate is also fixed on the upper surface of the support seat, a fixing plate is detachably installed on the top of the reinforcing support plate facing the surface of the detection rotating support member, a placement plate is detachably installed on the upper surface of the fixing plate, and a penetrating circular hole is provided at the center of the placement plate and on the surface of the fixing plate, the axes of the two circular holes coincide and the rotating axis of the digital potentiometer passes through the circular hole and is connected to the detection rotating support member, and a clamping assembly is fixed on the other side of the reinforcing support plate.

[0008] Preferably, the clamping U-shaped seat is made of rubber and an elastic clamping plate is installed inside the clamping U-shaped seat, the bottom end of the fixed support rod passes through the clamping U-shaped seat and is fixed to the elastic clamping plate, the initial state of the elastic clamping plate is that both ends are inclined toward the middle, and the initial inclination angle of the end of the elastic clamping plate is five degrees.

[0009] Preferably, guide arc strips are fixed to the upper and lower surfaces of both ends of the positioning arc plate, and the guide arc strips are arc-shaped and the center of the circle coincides with the center of the circle of the positioning arc plate.

[0010] Preferably, auxiliary positioning components are slidably installed on the outer sides of both ends of the positioning arc plate, and the auxiliary positioning component includes an auxiliary positioning arc plate, the auxiliary positioning arc plate is arc-shaped and the cross-section of the auxiliary positioning arc plate is U-shaped, and the inner side of the auxiliary positioning arc plate is provided with two connecting arc grooves symmetrically distributed up and down, and the guide arc strip is clamped in the connecting arc groove.

[0011] Preferably, a positioning hole is provided on the inner wall of the auxiliary positioning arc plate, a guide hole is detachably installed on the inner side of the auxiliary positioning arc plate, the auxiliary positioning block, one end of the auxiliary positioning block is inserted into the first magnetic sheet, the other end of the auxiliary positioning block is provided with a guide hole, an auxiliary positioning column is slidably installed on the inner side of the guide hole, and an auxiliary positioning spring is fixed between one end of the auxiliary positioning column and the auxiliary positioning block.

[0012] Preferably, the axis of the auxiliary positioning column passes through the center of the positioning arc plate, and after the two auxiliary positioning arc plates are connected to each other, the angle between the two axes of the auxiliary positioning columns is sixty degrees, and the angle between the axis of the auxiliary positioning column and the axis of the nearest positioning guide column is sixty degrees.

[0013] Preferably, the elastic potential energy of the auxiliary positioning spring is the same as the elastic potential energy of the guide positioning spring, a second magnetic sheet is fixed to the end of the auxiliary positioning block inserted in the auxiliary positioning spring, a first magnetic sheet is fixed to the inner side of the positioning hole, and the first magnetic sheet is fixed to the second magnetic sheet by magnetic adsorption.

[0014] Preferably, the ends of the two auxiliary positioning arc plates that contact each other are each provided with a mounting slot, the inner side of the mounting slot is clamped with an adsorption magnet, and the two auxiliary positioning arc plates are fixed by magnetic adsorption through the two adsorption magnets.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. After the detection of a digital potentiometer is completed, the electromagnet disconnects the power supply and loses the magnetic adsorption to the magnetic ring. At this time, the support spring elastically recovers and drives the rotating connecting ring, the magnetic ring and the rotating support rod to move upward, so that the rotating angle scale seat drives the detection rotating support to move upward a certain distance. At this time, the electromagnet cannot continue to fix the magnetic ring, and at the same time, the spring-type spring torsional recovers, and the spring-type spring drives the rotating support rod to rotate and reset, so that the rotating angle scale seat rotates and resets under the drive of the rotating support rod. There is no need to manually reset the angle of the rotating angle scale seat after rotation, which saves the time required for operation. The digital positioner on the surface of the placement plate can be directly removed and replaced, and the next digital positioner can be continuously detected, which shortens the preparation and operation time and improves the detection efficiency of the digital positioner. 2. The present invention elastically restores the guide positioning spring compressed between the positioning guide column and the inner end surface of the receiving hole and squeezes the positioning guide column toward the outside of the detection rotating support, so that the positioning guide column fits the outside of the detection rotating support and applies a force pointing to the axis of the detection rotating support. The detection rotating support is fixed in position by four positioning guide columns to prevent the detection rotating support from tilting to one side, thereby ensuring the accuracy of the detection data; 3. The present invention slides the two auxiliary positioning arc plates when the detection rotating support receives the force of the positioning guide column, so that the ends of the two auxiliary positioning arc plates are attached to each other and fixed by magnetic adsorption of the adsorption magnet, and then the end of the auxiliary positioning block is clamped in the auxiliary positioning spring, and the auxiliary positioning spring squeezes the auxiliary positioning column toward the outside of the detection rotating support, so that the auxiliary positioning column applies a force pointing to the center of the positioning arc plate to the detection rotating support, and the position of the detection rotating support is fixed by the two auxiliary positioning columns and the four positioning guide columns, and it is ensured that the force on the outside of the detection rotating support is uniform, thereby preventing the detection rotating support from tilting in the direction of the auxiliary positioning arc plate after receiving the force of the positioning guide column due to the lack of force restriction in the direction of the auxiliary positioning arc plate, and at the same time preventing the detection rotating support from tilting during the rotation and resetting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 for Figure 1 A magnified view of the structure at center A; Figure 3This is a schematic diagram of the structure of the present invention after the guide support rod is added; Figure 4 It is a structural schematic diagram of the guide support rod of the present invention; Figure 5 It is a structural schematic diagram of the positioning arc plate of the present invention; Figure 6 for Figure 5 A magnified view of the structure at B in the middle; Figure 7 It is a structural schematic diagram of the auxiliary positioning assembly of the present invention; Figure 8 This is a structural cross-sectional view of the auxiliary positioning arc plate of the present invention; Fig. 9 It is a schematic diagram of the connection between the auxiliary positioning arc plate and the auxiliary positioning arc plate of the present invention; Fig.10 It is a schematic structural diagram of the elastic clamping plate of the present invention.

[0017] In the figure: 1. Support seat; 2. Digital potentiometer host; 3. Digital potentiometer adjustment base; 4. Digital potentiometer rotating seat; 5. Guide support rod; 501. Clamping U-shaped seat; 502. Fixed support rod; 503. Load-bearing rod; 504. Positioning arc plate; 505. Positioning ring; 506. Positioning guide column; 507. Guide arc strip; 508. Assembly plug hole; 509. Assembly screw; 510. Guide positioning spring; 511. Elastic clamping plate; 512. Storage hole; 6. Auxiliary positioning component; 601. Auxiliary positioning arc plate; 602. Adsorption magnet; 603. Installation Card slot; 604, connecting arc groove; 605, positioning hole; 606, first magnetic sheet; 607, auxiliary positioning block; 608, auxiliary positioning column; 609, auxiliary positioning spring; 610, second magnetic sheet; 611, guide hole; 7, detection rotating support; 8, fixing plate; 9, placement plate; 10, clamping assembly; 11, rotating angle scale seat; 12, rotating connecting ring; 13, rotating support rod; 14, clockwork spring; 15, rotating connecting seat; 16, rotating worm gear; 17, adjusting worm; 18, magnetic ring; 19, electromagnet; 20, support spring; 21, reinforcement support plate. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] like Figures 1 to 3As shown, a digital potentiometer automatic angle-finding platform is provided, wherein a digital potentiometer host 2 and two digital potentiometer adjustment bases 3 are detachably mounted on the upper surface of a support base 1, and a rotatable and adjustable digital potentiometer rotating base 4 is mounted on the upper surface of the two digital potentiometer adjustment bases 3, and a detection rotating support 7 is detachably inserted in the middle of the digital potentiometer rotating base 4, and a rotating angle scale base 11 is fixed to the bottom of the digital potentiometer rotating base 4, and the bottom end of the rotating angle scale base 11 is rotatably inserted in the inside of the digital potentiometer adjustment base 3, and a motor is fixed in the inside of the digital potentiometer adjustment base 3, and an adjusting worm 17 is fixed to the output shaft end of the motor, and a rotating worm gear 16 is meshedly connected to one side of the adjusting worm 17, and a fishing gull rotating connecting base 15 is fixedly passed through the middle of the rotating worm gear 16, and an electromagnet 19 is fixed to the upper end of the rotating connecting base 15, and a rotating support rod 13 is inserted through the axial direction of the rotating connecting base 15, and the bottom end of the rotating support rod 13 passes through the rotating connecting base 15 and is rotatably connected to the support base 1. A clockwork spring 14 is installed between the outer side of the bottom end of the rod 13 and the support seat 1, a rotating connecting ring 12 is fixed to the bottom end of the rotating angle scale seat 11, and a magnetic ring 18 is fixedly embedded at the bottom end of the rotating connecting ring 12. The magnetic ring 18 and the electromagnet 19 are fixed by magnetic adsorption, and a supporting spring 20 is arranged between the rotating connecting ring 12 and the rotating connecting seat 15. The supporting spring 20 is sleeved on the outer side of the rotating support rod 13, and the top end of the rotating support rod 13 passes through the rotating connecting ring 12 and is fixed to the rotating angle scale seat 11. The worm 17 is rotated by the motor drive adjustment, so that the rotating worm gear 16 drives the rotating connecting seat 15, the electromagnet 19 and the magnetic ring 18 adsorbed by the electromagnet 19 to rotate, so that the magnetic ring 18 drives the rotating connecting ring 12, the rotating support rod 13 and the rotating angle scale seat 11 to rotate, and at the same time the clockwork spring 14 is twisted, and at this time the rotating angle scale seat 11 drives the digital potentiometer rotating seat 4, the detection rotating support 7 and the digital positioner to rotate, thereby performing initial angle positioning on the digital potentiometer.

[0020] A reinforcing support plate 21 is also fixed to the upper surface of the support seat 1, and a fixing plate 8 is detachably installed on the top of the reinforcing support plate 21 facing the surface of the detection rotating support 7, and a placement plate 9 is detachably installed on the upper surface of the fixing plate 8. A penetrating circular hole is provided at the center of the placement plate 9 and on the surface of the fixing plate 8, and the axes of the two circular holes coincide and the rotating shaft of the digital potentiometer passes through the circular hole and is connected to the detection rotating support 7, and a clamping assembly 10 is fixed to the other side of the reinforcing support plate 21, and the digital positioner placed on the surface of the placement plate 9 is clamped by the clamping assembly 10, so that the rotating shaft of the digital positioner rotates simultaneously with the detection rotating support 7 when the detection rotating support 7 rotates.

[0021] The clamping assembly 10 includes an electric telescopic rod, the bottom of which is fixed to a reinforcing support plate 21, a pressure plate is rotatably mounted on the top of the electric telescopic rod, and a penetrating strip groove is provided at the end of the pressure plate away from the electric telescopic rod, a pressure rod is detachably plugged into the inner side of the strip groove, and the pressure plate is rotated to the top of the digital potentiometer by rotating the pressure rod, and the pressure plate and the pressure rod are then driven downward by the electric telescopic rod, and the digital potentiometer is clamped by the downwardly moved pressure rod to prevent the digital potentiometer from deflecting or moving and affecting the accuracy of the detection data.

[0022] like Figures 4 to 6 As shown, a guide support rod 5 is detachably installed on the outer side of one end of the digital potentiometer adjustment base 3 on both sides, and the guide support rod 5 includes a clamping U-shaped seat 501, and the clamping U-shaped seat 501 is U-shaped and clamped on the outer side of the end of the digital potentiometer adjustment base 3, and a fixed support rod 502 is fixedly installed on the outer side of the clamping U-shaped seat 501, and two load-bearing rods 503 distributed up and down are fixed to the outer side of the top of the fixed support rod 502, and a positioning arc plate 504 is detachably installed on one end of the load-bearing rod 503, and four positioning rings 505 are fixed on the inner surface of the positioning arc plate 504, and the axes of the four positioning rings 505 pass through the center of the positioning arc plate 504, and two adjacent ones The angle between the axis pins of the positioning ring 505 is sixty degrees. Four receiving holes 512 are provided inside the positioning arc plate 504. The four receiving holes 512 correspond to the four positioning rings 505 one by one and the axes coincide with each other. A positioning guide column 506 is slidably installed on the inner side of the positioning ring 505. One end of the positioning guide column 506 is located on the inner side of the receiving hole 512. A guiding positioning spring 510 is fixed between the positioning guide column 506 and the inner end face of the receiving hole 512. By utilizing the four slidably adjustable positioning guide columns 506 on the inner side of the positioning arc plate 504, pressure is applied to the detection rotating support 7 from the outer side of the detection rotating support 7 to ensure that the detection rotating support 7 does not tip over.

[0023] An assembly plug hole 508 is provided in the middle of the positioning arc plate 504, and a screw hole is provided at the end where the load-bearing rod 503 and the positioning arc plate 504 are connected. An assembly screw 509 is inserted in the middle of the assembly plug hole 508, and the threaded end of the assembly screw 509 is screwed into the screw hole through a thread to connect and fix the positioning arc plate 504, thereby ensuring that the positioning arc plate 504 will not fall off the load-bearing rod 503 or avoiding the positioning arc plate 504 from tilting.

[0024] like Fig.10As shown, the clamping U-shaped seat 501 is made of rubber material and an elastic clamping plate 511 is installed inside the clamping U-shaped seat 501. The bottom end of the fixed support rod 502 passes through the clamping U-shaped seat 501 and is fixed to the elastic clamping plate 511. The initial state of the elastic clamping plate 511 is that both ends are inclined toward the middle. The initial inclination angle of the end of the elastic clamping plate 511 is five degrees. The elastic clamping plate 511 with the end bent toward the middle can expand outward and deform after being subjected to force on the inner side of the end. After the expanded and deformed elastic clamping plate 511 and the clamping U-shaped seat 501 are clamped on the outer side of the end of the digital potentiometer adjustment base 3, pressure is applied to the digital potentiometer adjustment base 3 to increase the friction resistance between the digital potentiometer adjustment base 3 and the clamping U-shaped seat 501, to ensure that the clamping U-shaped seat 501 will not move or fall easily, and to ensure that the structure of the guide support rod 5 is stable when in use.

[0025] like Figures 7 to 9 As shown, guide arc strips 507 are fixed to the upper and lower surfaces of both ends of the positioning arc plate 504, and the guide arc strips 507 are arc-shaped and the center of the circle coincides with the center of the circle of the positioning arc plate 504. Auxiliary positioning components 6 are slidably installed on the outer sides of both ends of the positioning arc plate 504, and the auxiliary positioning component 6 includes an auxiliary positioning arc plate 601, and the auxiliary positioning arc plate 601 is arc-shaped and the cross-section of the auxiliary positioning arc plate 601 is U-shaped. The inner side of the auxiliary positioning arc plate 601 is provided with two connecting arc grooves 604 symmetrically distributed up and down, and the guide arc strips 507 are clamped in the connecting arc grooves 604. The auxiliary positioning arc plate 601 and the positioning arc plate 504 are connected by using the guide arc strips 507 and the connecting arc grooves 604, so that the auxiliary positioning arc plate 601 slides on the outer side of the end of the positioning arc plate 504 and the auxiliary positioning arc plate 601 and the positioning arc plate 504 cannot be easily separated.

[0026] The inner wall of the auxiliary positioning arc plate 601 is provided with a positioning hole 605, and the inner side of the auxiliary positioning arc plate 601 is detachably provided with a guide hole 611 and an auxiliary positioning block 607. One end of the auxiliary positioning block 607 is inserted into the first magnetic sheet 606, and the other end of the auxiliary positioning block 607 is provided with a guide hole 611. An auxiliary positioning column 608 is slidably installed inside the guide hole 611. An auxiliary positioning spring 609 is fixed between one end of the auxiliary positioning column 608 and the auxiliary positioning block 607. The axis of the auxiliary positioning column 608 passes through the center of the positioning arc plate 504, and is located between the two auxiliary positioning columns. After the arc plates 601 are connected to each other, the angle between the axes of the two auxiliary positioning columns 608 is sixty degrees, and the angle between the axes of the auxiliary positioning columns 608 and the closest positioning guide column 506 is sixty degrees. After the two auxiliary positioning arc plates 601 are connected, the two auxiliary positioning columns 608 are used to apply a force pointing to the center of the positioning arc plate 504 to the detection rotating support 7, and the positioning guide column 506 is used to fix the position of the detection rotating support 7, thereby preventing the detection rotating support 7 from tilting toward the auxiliary positioning arc plate 601 after receiving the force of the positioning guide column 506.

[0027] The elastic potential energy of the auxiliary positioning spring 609 is the same as the elastic potential energy of the guide positioning spring 510. The end of the auxiliary positioning block 607 inserted in the auxiliary positioning spring 609 is fixed with a second magnetic piece 610, and the inner side of the positioning hole 605 is fixed with a first magnetic piece 606. The first magnetic piece 606 and the second magnetic piece 610 are magnetically adsorbed and fixed to ensure that the auxiliary positioning column 608 and the positioning guide column 506 apply the same force to the object, thereby ensuring that the object is evenly stressed and will not tilt in a certain direction. The auxiliary positioning block 607 is then fixed by the first magnetic piece 606 and the second magnetic piece 610 to ensure that the auxiliary positioning block 607 will not fall off from the inner side of the auxiliary positioning arc plate 601.

[0028] The ends of the two auxiliary positioning arc plates 601 that contact each other are provided with mounting slots 603, and the inner side of the mounting slots 603 is clamped with adsorption magnets 602. The two auxiliary positioning arc plates 601 are magnetically adsorbed and fixed by the two adsorption magnets 602 to ensure that after the two auxiliary positioning arc plates 601 are connected to each other, the two auxiliary positioning arc plates 601 will not separate from each other, thereby avoiding the auxiliary positioning column 608 from moving and causing uneven force on the object.

[0029] Working principle: First, the staff places the digital locator to be tested on the surface of the placement plate 9. When placing it, the rotating axis of the digital locator passes through the circular hole on the surface of the placement plate 9 and docks with the detection rotating support 7. Then the staff uses the clamping component 10 to clamp the placed digital locator. After the digital locator is clamped, the staff docks the detection data line of the detection instrument with the terminal of the digital locator one by one. After the digital locator is docked with the detection instrument, the resistance value of the digital locator at this time is displayed on the detection instrument. Then the device is powered on and started. The internal motor of the digital potentiometer adjustment base 3 drives the adjustment worm 17 to rotate and drives the rotating worm wheel 16 and the rotating connecting seat 15 to rotate at the same time. The rotating worm gear 16 drives the rotating connecting seat 15 and the electromagnet 19 to rotate. The electromagnet 19 drives the adsorbed and fixed magnetic ring 18 to rotate through magnetic adsorption. At this time, the magnetic ring 18 drives the rotating connecting ring 12, the rotating support rod 13, the rotating angle scale seat 11 and the digital potentiometer rotating seat 4 on the upper surface of the rotating angle scale seat 11 to rotate. At the same time, the clockwork spring 14 is twisted, and the digital potentiometer rotating seat 4 drives the rotating angle scale seat 11 to rotate, so that the rotating shaft of the digital positioner rotates under the drive of the detection rotating support 7. When the rotating shaft of the digital positioner rotates, the resistance value of the digital positioner displayed on the instrument is in a changing state until the resistance value of the digital positioner is consistent with the preset value of the instrument. The staff reads the rotation angle of the rotating angle scale seat 11 and records the rotation angle of the rotating shaft of the digital positioner at this time. After the data is recorded, the electromagnet 19 disconnects the power supply and loses the magnetic attraction to the magnetic ring 18. At this time, the support spring 20 elastically recovers and drives the rotating connecting ring 12, the magnetic ring 18 and the rotating support rod 13 to move upward, so that the rotating angle scale seat 11 drives the detection rotating support 7 to move upward a certain distance. At this time, the electromagnet 19 can no longer fix the magnetic ring 18, and at the same time the spring-type spring 14 torsional recovers, and the spring-type spring 14 drives the rotating support rod 13 to rotate and reset, so that the rotating angle scale seat 11 rotates and resets under the drive of the rotating support rod 13. There is no need to manually reset the angle of the rotating angle scale seat 11 after rotation, which saves the time required for the operation. The digital locator on the surface of the placement plate 9 can be directly removed and replaced, and the next digital locator can be continued to be detected, which shortens the preparation and operation time and improves the detection efficiency of the digital locator.

[0030] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A digital potentiometer automatic angle-finding platform, comprising a support base (1), characterized in that: The upper surface of the support seat (1) is detachably mounted with a digital potentiometer host (2) and two digital potentiometer adjustment bases (3), and the upper surfaces of the two digital potentiometer adjustment bases (3) are both mounted with rotatably adjustable digital potentiometer rotating bases (4), and a detection rotating support (7) is detachably plugged in the middle of the digital potentiometer rotating base (4), and a rotating angle scale seat (11) is fixed at the bottom of the digital potentiometer rotating base (4), and the bottom end of the rotating angle scale seat (11) is rotatably plugged into the inside of the digital potentiometer adjustment base (3), and a motor is fixed inside the digital potentiometer adjustment base (3), and an adjusting worm (17) is fixed at the output shaft end of the motor, and one side of the adjusting worm (17) is meshedly connected with a rotating worm wheel (16), and the middle of the rotating worm wheel (16) is penetrated and fixed with a Yugu rotating connection seat (15), and the rotating connection seat (15) An electromagnet (19) is fixed to the upper end of the rotating connection seat (15); a rotating support rod (13) is inserted and inserted in the axial direction of the rotating connection seat (15); the bottom end of the rotating support rod (13) penetrates the rotating connection seat (15) and is rotatably connected to the support seat (1); a spring-type spring (14) is installed between the outer side of the bottom end of the rotating support rod (13) and the support seat (1); a rotating connection ring (12) is fixed to the bottom end of the rotating angle scale seat (11); a magnetic ring (18) is fixedly embedded at the bottom end of the rotating connection ring (12); the magnetic ring (18) and the electromagnet (19) are fixed by magnetic adsorption; a support spring (20) is provided between the rotating connection ring (12) and the rotating connection seat (15); the support spring (20) is sleeved on the outer side of the rotating support rod (13); the top end of the rotating support rod (13) penetrates the rotating connection ring (12) and is fixed to the rotating angle scale seat (11).

2. The digital potentiometer automatic angle-finding stage according to claim 1, characterized in that: A guide support rod (5) is detachably mounted on the outer side of one end of the two digital potentiometer adjustment bases (3), and the guide support rod (5) comprises a clamping U-shaped seat (501), the clamping U-shaped seat (501) is U-shaped and is clamped on the outer side of the end of the digital potentiometer adjustment base (3), and a fixed support rod (502) is fixedly mounted on the outer side of the clamping U-shaped seat (501), and two load-bearing rods (503) distributed up and down are fixed to the outer side of the top end of the fixed support rod (502), and a positioning arc plate (504) is detachably mounted on one end of the load-bearing rod (503), and four positioning rings (505) are fixed on the inner surface of the positioning arc plate (504), and the axes of the four positioning rings (505) pass through the center of the positioning arc plate (504), and the angle between the shaft pins of two adjacent positioning rings (505) is six Ten degrees, four receiving holes (512) are provided inside the positioning arc plate (504), and the four receiving holes (512) correspond to the four positioning rings (505) one by one and their axes coincide with each other, a positioning guide column (506) is slidably installed on the inner side of the positioning ring (505), one end of the positioning guide column (506) is located on the inner side of the receiving hole (512), and a guiding positioning spring (510) is fixed between the positioning guide column (506) and the inner end surface of the receiving hole (512), an assembly plug hole (508) is penetrated in the middle of the positioning arc plate (504), a screw hole is provided at the end where the load-bearing rod (503) is connected to the positioning arc plate (504), an assembly screw (509) is inserted in the middle of the assembly plug hole (508), and the threaded end of the assembly screw (509) is screwed into the screw hole through a thread.

3. The digital potentiometer automatic angle-finding stage according to claim 1, characterized in that: A reinforcing support plate (21) is also fixed to the upper surface of the support seat (1); a fixing plate (8) is detachably mounted on the top of the reinforcing support plate (21) facing the detection rotating support member (7); a placement plate (9) is detachably mounted on the upper surface of the fixing plate (8); a penetrating circular hole is provided at the center of the placement plate (9) and on the surface of the fixing plate (8); the axes of the two circular holes coincide and the rotating shaft of the digital potentiometer passes through the circular hole and is connected to the detection rotating support member (7); a clamping assembly (10) is fixed to the other side of the reinforcing support plate (21).

4. The digital potentiometer automatic angle-finding stage according to claim 2, characterized in that: The clamping U-shaped seat (501) is made of rubber and an elastic clamping plate (511) is installed inside the clamping U-shaped seat (501). The bottom end of the fixed support rod (502) passes through the clamping U-shaped seat (501) and is fixed to the elastic clamping plate (511). The elastic clamping plate (511) is initially in a state where both ends are inclined toward the middle, and the initial inclination angle of the end of the elastic clamping plate (511) is five degrees.

5. The digital potentiometer automatic angle-finding stage according to claim 1, characterized in that: Guide arc strips (507) are fixed to the upper and lower surfaces of both ends of the positioning arc plate (504); the guide arc strips (507) are arc-shaped and the center of the circle coincides with the center of the circle of the positioning arc plate (504).

6. The digital potentiometer automatic angle-finding stage according to claim 5, characterized in that: Auxiliary positioning components (6) are slidably mounted on the outer sides of both ends of the positioning arc plate (504), and the auxiliary positioning component (6) comprises an auxiliary positioning arc plate (601). The auxiliary positioning arc plate (601) is arc-shaped and has a U-shaped cross-section. Two connecting arc grooves (604) symmetrically distributed up and down are provided on the inner side of the auxiliary positioning arc plate (601), and the guide arc strip (507) is clamped in the connecting arc groove (604).

7. The digital potentiometer automatic angle-finding stage according to claim 6, characterized in that: The inner wall of the auxiliary positioning arc plate (601) is provided with a positioning hole (605), the inner side of the auxiliary positioning arc plate (601) is detachably provided with a guide hole (611), the auxiliary positioning block (607), one end of the auxiliary positioning block (607) is inserted into the first magnetic sheet (606), the other end of the auxiliary positioning block (607) is provided with a guide hole (611), an auxiliary positioning column (608) is slidably installed on the inner side of the guide hole (611), and an auxiliary positioning spring (609) is fixed between one end of the auxiliary positioning column (608) and the auxiliary positioning block (607).

8. The digital potentiometer automatic angle-finding stage according to claim 7, characterized in that: The axis of the auxiliary positioning column (608) passes through the center of the positioning arc plate (504), and after the two auxiliary positioning arc plates (601) are connected to each other, the angle between the axes of the two auxiliary positioning columns (608) is sixty degrees, and the angle between the axis of the auxiliary positioning column (608) and the closest positioning guide column (506) is sixty degrees.

9. The digital potentiometer automatic angle-finding stage according to claim 8, characterized in that: The elastic potential energy of the auxiliary positioning spring (609) is the same as the elastic potential energy of the guide positioning spring (510); the end of the auxiliary positioning block (607) inserted in the auxiliary positioning spring (609) is fixed with a second magnetic piece (610); the inner side of the positioning hole (605) is fixed with a first magnetic piece (606); the first magnetic piece (606) and the second magnetic piece (610) are fixed by magnetic adsorption.

10. The digital potentiometer automatic angle-finding stage according to claim 9, characterized in that: The ends of the two auxiliary positioning arc plates (601) that contact each other are each provided with a mounting slot (603), and an adsorption magnet (602) is clamped inside the mounting slot (603). The two auxiliary positioning arc plates (601) are fixed by magnetic adsorption through the two adsorption magnets (602).

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