Potentiometer stability tester

Abstract

The utility model discloses a potentiometer stability tester which comprises a workbench, the upper end face of the workbench is fixedly provided with a supporting plate through a vertical plate, a base is arranged above the supporting plate, the upper end face of the base is provided with a shell through a circular groove, and a cover plate is movably arranged above the shell. Three through grooves are formed in the front end face of the shell, a supporting seat is fixedly installed in the middle of the front portion of the upper end face of the base, arc-shaped grooves are formed in the two sides of the supporting seat, supporting shafts are movably connected to the inner sides of the arc-shaped grooves through transmission mechanisms correspondingly, and leading-out end detection mechanisms are installed above the supporting seat and the supporting shafts correspondingly. According to the utility model, the distance between every two leading-out end detection mechanisms can be adjusted, the device can be suitable for connecting the leading-out ends of potentiometers of different models, close contact between the arc-shaped contact plate and the leading-out ends of the potentiometers to be detected can be realized, and good connection of lines can be realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to potentiometre test technical field, concretely is a potentiometre stability tester. BACKGROUND

[0002] Potentiometer is with three leadouts, resistance value can adjust according to certain change rule resistance element. Potentiometer is usually composed of resistance body and movable brush. When the brush moves along the resistance body, resistance value or voltage in output terminal is obtained with displacement amount certain relation, needs testing before potentiometer factory.

[0003] But, the existing potentiometer specification is small, the method for testing potentiometer at present is artificial knob method, and does not have special clamping test device, needs to connect respectively to three leadouts, reduces work efficiency, and it is inconvenient to clamp different models of potentiometer;Therefore, it does not satisfy the existing demand, and we propose a potentiometer stability tester for this. UTILITY MODEL CONTENTS

[0004] The utility model discloses a potentiometer stability tester, to solve the existing potentiometer specification small in the background art mentioned above, the method for testing potentiometer at present is artificial knob method, and does not have special clamping test device, needs to connect respectively to three leadouts, reduces work efficiency, and can only rely on artificial knob, and rotation angle is not easy to control, and the problem such as low test precision and low test efficiency is caused.

[0005] To realize above-mentioned purpose, the utility model provides the following technical scheme: a potentiometer stability tester, including workbench, the upper end surface of workbench is fixedly installed with support plate through vertical board, the upper of support plate is provided with base, the upper end surface of base is installed with shell through round groove, the upper of shell is movably provided with cover plate, the front end surface of shell is provided with three through grooves, the middle fixed mounting of base upper end surface front is provided with support seat, the both sides of support seat are provided with arc slot, the inboard of arc slot all are movably connected with support shaft through transmission mechanism, the upper of support seat and support shaft all are installed with leadout detection mechanism, the leadout detection mechanism includes connecting seat, the upper of connecting seat is provided with two insertion rods, two insertion rods are connected through short shaft, the middle installation of short shaft outer surface is provided with annular air bag, the front and back of annular air bag outside are provided with arc contact plate, the outer surface of short shaft is movably connected with arc contact plate through spring.

[0006] Preferably, the upper end face of the cover plate is provided with a through hole, the lower end face of the cover plate is provided with an annular plug plate, the lower end face of the annular plug plate is provided with an electromagnet A, the upper end face of the shell is provided with an annular slot, the upper end face of the annular slot is provided with an electromagnet B, the annular plug plate is matched with the annular slot, and the electromagnet A and the electromagnet B are opposite in magnetic pole.

[0007] Preferably, the transmission mechanism comprises a connecting shaft, threaded rods are arranged at the two ends of the connecting shaft, threaded blocks are arranged on the outer surfaces of the threaded rods, sliding grooves are arranged on the rear end faces of the threaded blocks, sliding blocks are slidably connected to the inner sides of the sliding grooves, and arc-shaped blocks are arranged at the rear of the sliding blocks.

[0008] Preferably, the threaded directions of the two threaded blocks are opposite, the arc-shaped blocks are connected with the sliding blocks through telescopic sleeves, the telescopic sleeves comprise thick sleeves and thin sleeves, the thin sleeves are clamped into the inner sides of the thick sleeves, the arc-shaped blocks are fixedly connected with the supporting shafts through vertical rods, the arc-shaped blocks are movable in the inner sides of the arc-shaped grooves, and the cavities are connected with the arc-shaped grooves through connecting grooves.

[0009] Preferably, a cavity is arranged in front of the base, the transmission mechanism is arranged in the cavity, a motor A is arranged on one side of the inner wall of the cavity, the output end of the motor A is fixedly connected with one end of one of the threaded rods through a shaft coupling, and the other end of the other threaded rod is rotatably connected with the inner wall of the cavity through a bearing.

[0010] Preferably, an air pump is arranged below the rear end face of the vertical plate, the air pump is connected with the annular air bag through an air pipe, a test device is arranged on the other side of the upper end face of the workbench, the test device is connected with the connecting seat through a wire A, and the connecting seat is connected with the arc-shaped touch plate through a wire B.

[0011] Preferably, a motor B is arranged on the lower end face of the supporting plate, the output end of the motor B is fixedly connected with the lower end face of the base through a shaft coupling, a motor C is arranged in the vertical plate through a motor cavity, the output end of the motor C is fixedly connected with a rotating plate through a shaft coupling, an electric push rod is arranged on the upper end face of the rotating plate, and a screwdriver is arranged on the lower end face of the electric push rod through a mounting plate.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1. This utility model, by setting a through groove, a transmission mechanism, and an arc-shaped groove, controls motor A to drive the threaded rod to rotate, causing two threaded blocks to move on the outer surface of the threaded rod. The two threaded blocks move simultaneously in a direction closer or further apart, and the movement of the threaded blocks drives the slider to move, thereby driving the telescopic sleeve to move. The telescopic sleeve extends and retracts, causing the arc-shaped block to move inside the arc-shaped groove, driving the support shaft to move, thereby driving the lead-out end detection mechanisms on both sides to move. Adjusting the distance between each pair of lead-out end detection mechanisms allows it to be used for lead-out end connection of different models of potentiometers, improving efficiency.

[0014] 2. This utility model incorporates a lead-out detection mechanism, allowing the potentiometer's lead-out interface to pass through the insertion rod. By controlling the air pump, the annular airbag is inflated. After inflation, the annular airbag compresses the arc-shaped contact plate, stretching the spring and causing the arc-shaped contact plate to move away from the short axis until it comes into contact with the inner wall of the lead-out interface. This ensures a tight fit between the arc-shaped contact plate and the inner wall of the potentiometer's lead-out, achieving a good circuit connection. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the through groove of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the cover plate of this utility model when it is open;

[0018] Figure 4 This is a schematic diagram of the transmission mechanism of this utility model;

[0019] Figure 5 This is a side view of the transmission mechanism of this utility model;

[0020] Figure 6 This is a schematic diagram of the lead-out end detection mechanism of this utility model.

[0021] In the diagram: 1. Workbench; 2. Support plate; 3. Base; 4. Housing; 5. Cover plate; 6. Through groove; 7. Arc groove; 8. Support seat; 9. Lead-out end detection mechanism; 901. Insert rod; 902. Connecting seat; 903. Short shaft; 904. Arc touch plate; 905. Spring; 906. Annular airbag; 10. Annular insert plate; 11. Annular slot; 12. Transmission mechanism; 1201. Threaded rod; 1202. Connecting shaft; 1203. Threaded block; 1204. Arc block; 1205. Vertical rod; 1206. Telescopic sleeve; 1207. Slider; 1208. Slide groove; 13. Wire A; 14. Support shaft. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0023] The motor A (model number 68KTYZ), the motor B (model number YEJ3-112M-4), the motor C (model number 68KTYZ), the air pump (model number 2XZ-0.25) and the electric push rod (model number LBP40) mentioned in the utility model can be obtained from the market or private customization.

[0024] Please refer to Figures 1 to 6 The utility model provides an embodiment: a potentiometer stability tester, including workbench 1, the upper end surface of workbench 1 is fixedly installed with support plate 2 through vertical board, the top of support plate 2 is provided with base 3, the upper end surface of base 3 is installed with shell 4 through round groove, the top of shell 4 is movably provided with cover plate 5, the front end surface of shell 4 is provided with three through slots 6, the middle of the front end surface of base 3 is fixedly installed with support seat 8, the both sides of support seat 8 are provided with arc slot 7, the inside of arc slot 7 is movably connected with support shaft 14 through transmission mechanism 12, the top of support seat 8 and support shaft 14 is installed with lead-out end detection mechanism 9, lead-out end detection mechanism 9 includes connecting seat 902, the top of connecting seat 902 is provided with two inserting rods 901, two inserting rods 901 are connected through short shaft 903, the middle of the outer surface of short shaft 903 is installed with annular air bag 906, the front and rear of the outside of annular air bag 906 are provided with arc touch plate 904, arc touch plate 904 and the outer surface of short shaft 903 are movably connected through spring 905.

[0025] Further, the upper end surface of cover plate 5 is provided with through hole, the lower end surface of cover plate 5 is installed with annular inserting plate 10, the lower end surface of annular inserting plate 10 is installed with electromagnet A, the upper end surface of shell 4 is provided with annular insertion slot 11, the upper end surface of annular insertion slot 11 is installed with electromagnet B, annular inserting plate 10 is matched with annular insertion slot 11, the magnetic pole of electromagnet A and electromagnet B is opposite, annular inserting plate 10 can be inserted into the inside of annular insertion slot 11, by being provided with electromagnet A and electromagnet B, the stability of the connection of cover plate 5 and shell 4 is improved.

[0026] Transmission mechanism 12 includes connecting shaft 1202, the both ends of connecting shaft 1202 are installed with threaded rod 1201, the outer surface of threaded rod 1201 is sleeved with screw block 1203, the rear end surface of screw block 1203 is provided with sliding groove 1208, the inside of sliding groove 1208 is slidably connected with sliding block 1207, the rear of sliding block 1207 is provided with arc block 1204, screw block 1203 can move left and right on the outer surface of threaded rod 1201.

[0027] The two threaded blocks 1203 are opposite in threaded direction, the arc-shaped block 1204 is connected with the sliding block 1207 through the telescopic sleeve 1206, the telescopic sleeve 1206 comprises a thick sleeve and a thin sleeve rod, and the thin sleeve rod is clamped into the inside of the thick sleeve, the arc-shaped block 1204 is fixedly connected with the supporting shaft 14 through the vertical rod 1205, the arc-shaped block 1204 is movable in the inside of the arc-shaped groove 7, the cavity is connected with the arc-shaped groove 7 through the connecting groove, the sliding block 1207 is slidable in the inside of the sliding groove 1208, drives the telescopic sleeve 1206 to move, thereby driving the arc-shaped block 1204 to move, and the telescopic sleeve 1206 is movable in the inside of the connecting groove.

[0028] The front of the base 3 is provided with a cavity, the transmission mechanism 12 is located in the inside of the cavity, one side of the inner wall of the cavity is provided with the motor A, the output end of the motor A is fixedly connected with one end of one of the threaded rods 1201 through a shaft coupling, the other end of the other threaded rod 1201 is rotatably connected with the inner wall of the cavity through a bearing, the motor A can drive the threaded rod 1201 to rotate, and drive the two threaded blocks 1203 to simultaneously move towards or away from each other.

[0029] The lower side of the rear end face of the vertical plate is provided with an air pump, the air pump is connected with the annular air bag 906 through an air pipe, the other side of the upper end face of the workbench 1 is provided with a test device, the test device is connected with the connecting seat 902 through a wire A13, the connecting seat 902 is connected with the arc-shaped contact plate 904 through a wire B, through the connection of the wire A13 and the wire B, when the arc-shaped contact plate 904 is attached to the surface of the lead-out end, good connection of the circuit can be realized, and the air pump can inflate the annular air bag 906, so that the arc-shaped contact plate 904 is attached to the inner wall of the lead-out end of the potentiometer.

[0030] The lower end face of the supporting plate 2 is provided with the motor B, the output end of the motor B is fixedly connected with the lower end face of the base 3 through a shaft coupling, the inside of the vertical plate is provided with the motor C through a motor cavity, the output end of the motor C is fixedly connected with a rotating plate through a shaft coupling, the upper end face of the rotating plate is provided with the electric push rod, the lower end face of the electric push rod is provided with the screwdriver through the mounting plate, the motor C can drive the rotating plate to rotate, so that the screwdriver is located directly above the cover plate 5, the electric push rod is controlled, so that the screwdriver is in full contact with the adjustable knob of the potentiometer, the motor B is started, and the potentiometer is tested.

[0031] The potentiometer stability tester in use, turn on the power, through the setting has the through slot 6, transmission mechanism 12, arc slot 7, through the control motor A, motor A work can drive screw rod 1201 rotation, make two threaded blocks 1203 move on the outer surface of screw rod 1201, two threaded blocks 1203 move towards the direction of close or far away simultaneously, threaded block 1203 moves and drives slider 1207 to move, thereby drive telescopic sleeve 1206 moves, telescopic sleeve 1206 telescopes, drive arc block 1204 moves in the inside of arc slot 7, drive support shaft 14 to move, thereby drive both sides of the lead-out end detection mechanism 9 to move, adjust the interval between every two lead-out end detection mechanism 9, can be applicable to the lead-out end connection of different models of potentiometer, improve efficiency;Through the setting has lead-out end detection mechanism 9, make the interface of the lead-out end of potentiometer penetrate plug rod 901, through the control of air pump work, can inflate annular air bag 906, annular air bag 906 inflates, extrude arc contact plate 904, spring 905 is stretched, arc contact plate 904 moves away from the direction of short shaft 903, until the inner wall of lead-out end interface is combined, make arc contact plate 904 and the inner wall of potentiometer lead-out end close tightly, the utility model can adjust the interval between every two lead-out end detection mechanism 9, can be applicable to the lead-out end connection of different models of potentiometer, and can realize the close contact of arc contact plate 904 and the lead-out end of the measured potentiometer, realize the good connection of line.

[0032] It is obvious for those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the utility model is defined by the appended claims rather than the above description, so as to include all changes falling within the meaning and scope of the equivalent elements of the claims in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A potentiometer stability tester comprising a workbench (1), characterized in that: The upper end face of the workbench (1) is fixedly installed with a supporting plate (2) through a vertical plate, a base (3) is arranged above the supporting plate (2), a shell (4) is installed on the upper end face of the base (3) through a circular groove, a cover plate (5) is movably arranged above the shell (4), three through grooves (6) are arranged on the front end face of the shell (4), a supporting seat (8) is fixedly installed on the front end face of the upper end face of the base (3), arc-shaped grooves (7) are arranged on the two sides of the supporting seat (8), supporting shafts (14) are movably connected to the inner sides of the arc-shaped grooves (7) through transmission mechanisms (12), lead-out end detection mechanisms (9) are installed above the supporting seat (8) and the supporting shafts (14), the lead-out end detection mechanism (9) comprises a connecting seat (902), two plug rods (901) are arranged above the connecting seat (902), the two plug rods (901) are connected through a short shaft (903), an annular air bag (906) is installed on the middle of the outer surface of the short shaft (903), arc-shaped touch plates (904) are arranged on the front and back of the outer side of the annular air bag (906), and the arc-shaped touch plates (904) are movably connected to the outer surface of the short shaft (903) through springs (905).

2. The potentiometer stability tester according to claim 1, characterized in that: A through hole is arranged through the upper end face of the cover plate (5), an annular plug plate (10) is installed on the lower end face of the cover plate (5), an electromagnet A is installed on the lower end face of the annular plug plate (10), an annular plug groove (11) is arranged on the upper end face of the shell (4), an electromagnet B is installed on the upper end face of the annular plug groove (11), the annular plug plate (10) is matched with the annular plug groove (11), and the electromagnet A and the electromagnet B are opposite in magnetic pole.

3. The potentiometer stability tester of claim 1, wherein: The transmission mechanism (12) comprises a connecting shaft (1202), threaded rods (1201) are installed at the two ends of the connecting shaft (1202), threaded blocks (1203) are sleeved on the outer surfaces of the threaded rods (1201), sliding grooves (1208) are arranged on the rear end faces of the threaded blocks (1203), sliding blocks (1207) are slidably connected to the inner sides of the sliding grooves (1208), and arc-shaped blocks (1204) are arranged behind the sliding blocks (1207).

4. The potentiometer stability tester according to claim 3, characterized in that: A cavity is arranged in front of the inside of the base (3), the transmission mechanism (12) is located on the inner side of the cavity, a motor A is installed on one side of the inner wall of the cavity, the output end of the motor A is fixedly connected with one end of one of the threaded rods (1201) through a shaft coupling, and the other end of the other threaded rod (1201) is rotatably connected with the inner wall of the cavity through a bearing.

5. The potentiometer stability tester according to claim 4, characterized in that: The thread direction of two thread blocks (1203) is opposite, the arc block (1204) is connected with the slider (1207) through the telescopic sleeve (1206), the telescopic sleeve (1206) comprises a thick sleeve and a thin sleeve rod, and the thin sleeve rod is clamped into the inside of the thick sleeve, the arc block (1204) is fixedly connected with the support shaft (14) through the vertical rod (1205), the arc block (1204) is movable in the inside of the arc-shaped groove (7), and the cavity is connected with the arc-shaped groove (7) through the connecting groove.

6. The potentiometer stability tester of claim 1, wherein: The lower end surface of the vertical plate is provided with an air pump connected with the annular air bag (906) through an air pipe, the other side of the upper end surface of the workbench (1) is provided with a test device connected with the connecting seat (902) through lead A (13), and the connecting seat (902) is connected with the arc-shaped touch plate (904) through lead B.

7. The potentiometer stability tester of claim 1, wherein: The lower end surface of the support plate (2) is provided with motor B, the output end of motor B is fixedly connected with the lower end surface of the base (3) through a shaft coupling, the inside of the vertical plate is provided with motor C through a motor cavity, the output end of motor C is fixedly connected with a rotating plate through a shaft coupling, the upper end surface of the rotating plate is provided with an electric push rod, and the lower end surface of the electric push rod is provided with a screwdriver through a mounting plate.

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