CN110967586A

CN110967586A - Automatic detection device of potentiometer

Info

Publication number: CN110967586A
Application number: CN201911351758.9A
Authority: CN
Inventors: 赖月标
Original assignee: Longyan City Yongding District Xiang Billion Electronics Co ltd
Current assignee: Longyan City Yongding District Xiang Billion Electronics Co ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-04-07

Abstract

The invention discloses an automatic detection device of a potentiometer, belonging to the field of electric power testing devices. The pressure detection part comprises a first slide rail, a resisting plate, a pressure sensor, a threaded ring, a threaded rod and a bearing ring. Temperature detect component includes electric heater, the fan, and temperature sensor, pressure detect component's threaded rod drive is supported the board, pressure sensor, the contact plate descends oppression potentiometre, pressure sensor can detect the pressure that the potentiometre received in real time, simultaneously supplementary measuring part will be surveyed the potentiometre and be connected with outside electricity instrument, can observe the change of potentiometre performance when receiving different pressure directly perceivedly, the performance that cooperates temperature detect component can also detect the potentiometre in addition receives the condition that the temperature influenced, the performance of diversified potentiometre that detects, avoid on the unable potentiometre of passing applies game paddle, influence consumer's gaming experience.

Description

Automatic detection device of potentiometer

Technical Field

The invention relates to the field of power testing devices, in particular to an automatic detection device of a potentiometer.

Background

The potentiometer is a resistance element which is provided with three leading-out terminals and the resistance value of which can be adjusted according to a certain change rule. Potentiometers are generally composed of a resistive body and a movable brush. The brushes move along the resistor body to obtain a resistance value or a voltage in a certain relation with the displacement at the output end, and the brushes are called potentiometers because the brushes have the function of obtaining an output voltage in a certain relation with an input voltage (an applied voltage) in a circuit.

With the development and progress of society, people have higher and higher pursuits for cultural activities, so that electronic games are produced. Electronic games are played on electronic device platforms, and externally connected game input devices are indispensable parts. A joystick is a common external input device, which inputs signals through a joystick or a button, and thus controls an emulated character in an electronic game. The control rod and the button are connected with a potentiometer, and the signal input is realized by changing the resistance of the potentiometer.

Because people need frequently use the joystick and the button when using the gamepad game, and along with the game, the strength of using the gamepad can be unconsciously aggravated when people's mood is excited, and the potentiometer can generate heat after long-time use. This requires the potentiometer in the handle to have a strong mechanical strength and a high temperature resistance. Therefore, the potentiometer needs to be tested for mechanical strength and high temperature resistance before being shipped out of a factory. There is currently no device on the market that is specific to the project.

Disclosure of Invention

In order to overcome the defects of the prior art, the technical problem to be solved by the invention is to provide an automatic detection device for a potentiometer, which can detect the mechanical strength and the high temperature resistance of the potentiometer.

In order to achieve the purpose, the invention adopts the following technical scheme:

the invention provides an automatic detection device of a potentiometer, which comprises a case, a fixed seat, a driving part, a pressure detection part, a temperature detection part and an auxiliary measurement part. The machine case is arranged in a hollow mode, and the fixing seat is fixed to the inner bottom wall of the machine case. The pressure detection part comprises a first slide rail, a support plate, a pressure sensor, a threaded ring, a threaded rod and a bearing ring, the first slide rail is fixed on the left inner side wall and the right inner side wall of the case respectively, the two sides of the support plate are connected with the first slide rail in a sliding manner respectively, the threaded ring is embedded in the top wall of the case, the bearing ring is fixed on the upper surface of the support plate, the threaded rod is in threaded fit with the threaded ring, the lower end of the threaded rod is connected with the bearing ring in a rotating manner, the upper end of the threaded rod is located above the case and connected with the driving part, the pressure sensor is fixed on the lower surface of the support plate, and the contact plate is arranged at the bottom of the. The temperature detection part comprises an electric heater, a fan and a temperature sensor, the fan is fixed on the inner side wall of the case through a support, the electric heater is fixed at the input end of the fan, and the temperature sensor is fixed on the fixed seat. The auxiliary measuring component comprises two electric connecting devices, the two electric connecting devices are arranged on the left side wall and the right side wall of the case respectively, each electric connecting device comprises an electric connecting piece, a wire, an electric connecting clamp and a pressure spring, the electric connecting pieces are embedded in the outer side wall of the case, the wire is located inside the case, one end of the wire penetrates through the side wall of the case and is electrically connected with the electric connecting pieces, the other end of the wire is electrically connected with the electric connecting clamps, one end of the pressure spring is fixed on the side wall of the case, and the other end of the pressure spring is fixedly connected with the end part of the wire.

In a preferred embodiment of the present invention, the driving part includes a first motor and a second slide rail. The two second sliding rails are vertically fixed at the top of the case, the first motor is arranged between the two second sliding rails, two sides of the first motor are respectively in sliding connection with the two second sliding rails, and the power output end of the first motor is fixedly connected with the upper end of the threaded rod.

In a preferred technical scheme of the invention, the driving device comprises a cross rod and a hand lever. The horizontal setting of horizontal pole, the one end of horizontal pole is fixed in the upper end of threaded rod, the hand lever is vertical to be fixed in the other end of horizontal pole.

In a preferred embodiment of the present invention, the fixing base includes a bottom plate, a fixing clip, a movable clip, and a threaded shaft. The fixed clamp is fixed at one end of the bottom plate, a groove is formed in the bottom plate, the movable clamp is slidably arranged on the groove, one end of the threaded shaft is rotatably connected to the side wall of the groove, the other end of the threaded shaft extends to one side of the bottom plate, and the threaded shaft is in threaded fit with the movable clamp.

In a preferred technical solution of the present invention, the fixing base further includes an automatic triggering component, and the automatic triggering component includes a second motor, a touch switch, and a pressure switch. The second motor is fixed on the bottom plate, a power output shaft of the second motor is provided with threads, the power output shaft of the second motor is perpendicular to the threaded shaft, and the power output shaft of the second motor is in threaded fit with the threaded shaft. Touch switch set up in the side of fixation clamp, pressure switch set up in the inside of fixation clamp, pressure switch's sense terminal extends to the outside of fixation clamp clamping part. The pressure switch is electrically connected with the second motor and the touch switch respectively.

In a preferred technical scheme of the invention, the upper surface of the contact plate is provided with a plurality of connecting columns, the tops of the connecting columns are fixedly provided with limiting blocks, the lower surface of the abutting plate is provided with a plurality of connecting grooves matched with the connecting columns, the connecting columns extend into the connecting grooves, and the limiting blocks are positioned in the connecting grooves.

In a preferred embodiment of the present invention, the temperature detecting unit further includes a thermometer. The thermometer is embedded in the side wall of the case, the measuring end of the thermometer is positioned inside the case, and the display end of the thermometer is positioned outside the case.

In a preferred embodiment of the present invention, the temperature detecting unit further includes a refrigerator. The refrigerator is fixed on the inner bottom wall of the case.

In a preferred technical scheme of the present invention, the automatic detection device for a potentiometer further includes a limiting post, the limiting post is vertically fixed to an inner bottom wall of the chassis, and an upper end of the limiting post is higher than the electric heater and the fan.

In a preferred technical scheme of the invention, an electric heating block is embedded in the contact plate.

In a preferred technical solution of the present invention, the automatic detection apparatus for a potentiometer further comprises a detection module, wherein the detection module comprises a pre-amplifier circuit, a filter circuit, a mid-amplifier circuit, a peak detection circuit, and a control module. The auxiliary detection component is electrically connected with the amplifying circuit, and the amplifying circuit, the filter circuit, the middle amplifying circuit, the peak detection circuit and the control module are electrically connected in sequence.

The invention has the beneficial effects that:

according to the automatic detection device for the potentiometer, the threaded rod in the pressure detection part drives the abutting plate, the pressure sensor and the contact plate to descend to press the potentiometer, the pressure sensor can detect the pressure applied to the potentiometer in real time, meanwhile, the auxiliary measurement part connects the potentiometer to be detected with an external electrical instrument, the performance change of the potentiometer under different pressures can be visually observed, in addition, the temperature detection part can detect the condition that the performance of the potentiometer is influenced by temperature in a matching manner, the performance of the potentiometer is detected in multiple directions, and the phenomenon that the failed potentiometer is applied to a game handle to influence the game experience of consumers is avoided.

Drawings

FIG. 1 is a schematic structural diagram of an automatic detection device for a potentiometer according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of an automatic detection device for a potentiometer according to an embodiment of the present invention, which employs a manual driving structure;

FIG. 3 is a schematic structural diagram of a fixing base of an automatic detecting apparatus for a potentiometer according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a detection module in the automatic detection device of the potentiometer according to the embodiment of the present invention.

In the figure:

1. the device comprises a case, 11, a limiting column, 21, a bottom plate, 22, a movable clamp, 23, a fixing clamp, 24, a threaded shaft, 25, a groove, 26, a second motor, 27, a touch switch, 28, a pressure switch, 30, a contact plate, 31, a first sliding rail, 32, a butting plate, 33, a pressure sensor, 34, a threaded ring, 35, a threaded rod, 36, a bearing ring, 37, a connecting column, 38, a connecting groove, 39, a limiting block, 41, an electric heater, 42, a fan, 43, a temperature sensor, 44, a refrigerator, 45, an electric heater, 51, an electric connecting piece, 52, a lead, 53, an electric connecting clamp, 54, a pressure spring, 61, a second sliding rail, 62, a first motor, 63, a cross bar, 64, a hand lever, 71 and a thermometer.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

As shown in fig. 1, the embodiment provides an automatic detection device for a potentiometer, which includes a case 1, a fixing seat, a driving component, a pressure detection component, a temperature detection component, and an auxiliary measurement component. The machine case 1 is arranged in a hollow mode, and the fixing seat is fixed on the inner bottom wall of the machine case 1. The pressure detection part comprises first slide rails 31, a supporting plate 32, a pressure sensor 33, a threaded ring 34, a threaded rod 35 and a bearing ring 36, the two first slide rails 31 are fixed on the left inner side wall and the right inner side wall of the case 1 respectively, two sides of the supporting plate 32 are connected with the two first slide rails 31 in a sliding mode respectively, the threaded ring 34 is embedded in the top wall of the case 1, the bearing ring 36 is fixed on the upper surface of the supporting plate 32, the threaded rod 35 is in threaded fit with the threaded ring 34, the lower end of the threaded rod 35 is connected with the bearing ring 36 in a rotating mode, the upper end of the threaded rod 35 is located above the case 1 and is connected with the driving part, the pressure sensor 33 is fixed on the lower. The temperature detection component comprises an electric heater 41, a fan 42 and a temperature sensor 43, the fan 42 is fixed on the inner side wall of the case 1 through a support, the electric heater 41 is fixed on the input end of the fan 42, and the temperature sensor 43 is fixed on a fixed seat. The auxiliary measuring component comprises two electric connecting devices, the two electric connecting devices are arranged on the left side wall and the right side wall of the case 1 respectively, each electric connecting device comprises an electric connecting piece 51, a wire 52, an electric connecting clamp 53 and a pressure spring 54, the electric connecting pieces 51 are embedded on the outer side wall of the case 1, the wires 52 are located inside the case 1, one ends of the wires 52 penetrate through the side wall of the case 1 and are electrically connected with the electric connecting pieces 51, the other ends of the wires 52 are electrically connected with the electric connecting clamps 53, one ends of the pressure springs 54 are fixed on the side wall of the case 1, and the other ends of.

Before measurement, a potentiometer to be detected is placed on a fixed seat and fixed, two guide electric connecting clamps 53 are clamped on contacts of the potentiometer to be detected, an instrument for measuring the performance of the potentiometer is connected to two electric connecting pieces 51 on the side wall of the case 1 from the outside, and the external measuring instrument is connected with the potentiometer through an auxiliary measuring component.

The device may then be activated for detection. The drive member is activated and drives the threaded rod 35 to rotate, the threaded rod 35 rotating into threaded engagement with the threaded ring 34. The threaded rod 35 descends integrally, and the threaded rod 35 descends to push the abutting plate 32 to descend. The abutting plate 32 descends until it presses the potentiometer clamped on the fixed seat. The pressure sensor 33 at the bottom of the abutment plate 32 and the contact plate 30 press against the potentiometer. The force of the drive member continues to be applied and the pressure sensor 33 receives a pressure from the contact plate 30 against the potentiometer, which is indicative of the pressure to which the potentiometer is subjected. Meanwhile, the pressure sensor can be corresponding to an instrument with a potentiometer connected to the front surface, and the change of the performance of the potentiometer can be observed through the instrument when the pressure applied to the potentiometer is continuously increased. The parameter can help the user to identify the mechanical pressure resistance of the potentiometer.

In addition to detecting mechanical properties, the start temperature detecting part detects the high temperature resistance of the potentiometer. The fan 42 and the electric heater 41 are activated, the electric heater 41 is energized to generate heat, and the electric heater 41 is disposed at a position behind the fan 42, i.e., an input end of the fan 42. The wind sucked by the fan 42 is blown out by heating by the electric heater 41. The air inside the cabinet 1 is continuously heated in such a way that the temperature inside the cabinet 1 rises, the actual temperature inside the cabinet 1 is detected by the temperature sensor 43, and the condition that the performance of the potentiometer is affected by the temperature can be represented by combining the temperature and the indication of the measuring instrument when the temperature is corresponding to the actual temperature. Through above-mentioned two devices, can conveniently detect the mechanical crushing resistance and the high temperature resistance ability of potentiometre directly perceivedly, help producers to detect the performance of potentiometre to output better product.

After the test is finished, the power connection clamp 53 is taken down from the potentiometer, and the lead 52 retracts under the action of the pressure spring 54, so that a user can conveniently take and place the potentiometer.

In one embodiment of the present invention, the driving means includes a first motor 62 and a second slide rail 61. Two second slide rails 61 are vertically fixed in the top of quick-witted case 1, and first motor 62 sets up between two second slide rails 61, and the both sides of first motor 62 respectively with two second slide rails 61 sliding connection, the power take off end of first motor 62 and the upper end fixed connection of threaded rod 35. When the driving support plate 32 presses the potentiometer downwards, the second first motor 62 is started, the threaded rod 35 is driven to rotate, the threaded rod 35 falls under the action of the threaded ring 34, and simultaneously the second first motor 62 is driven to fall, so that the second first motor 62 slides down on the two second slide rails 61. By using the second first motor 62 for driving, strong and continuous power can be provided for the striking plate 32.

In one embodiment of the invention, as shown in fig. 2, the drive means comprises a cross bar 63 and a hand lever 64. Cross bar 63 sets up horizontally, and the one end of cross bar 63 is fixed in the upper end of threaded rod 35, and hand lever 64 is vertical to be fixed in the other end of cross bar 63. When the first motor 62 is not used for driving, the test can be performed in a manual driving mode. The lowering of the threaded rod 35 is controlled by rocking the hand lever 64, which, although not continuously powerful, is driven by the first motor 62, can be used as a supplementary aid.

In one embodiment of the invention, the fixing base comprises a base plate 21, a fixing clip 23, a moving clip 22 and a threaded shaft 24. The fixing clamp 23 is fixed at one end of the bottom plate 21, a slot 25 is formed in the bottom plate 21, the movable clamp 22 is slidably arranged on the slot 25, one end of the threaded shaft 24 is rotatably connected to the side wall of the slot 25, the other end of the threaded shaft 24 extends to one side of the bottom plate 21, and the threaded shaft 24 is in threaded fit with the movable clamp 22. When the fixed seat is used for fixing the potentiometer, the potentiometer is abutted to the fixed clamp 23, then the threaded shaft 24 is rotated, and the movable clamp 22 moves towards the fixed clamp 23 under the threaded fit of the threaded shaft 24 until the movable clamp 22 is rotated to clamp the potentiometer.

In one implementation of the invention, as shown in fig. 3, the holder further comprises an automatic triggering part, which comprises the second motor 2, the touch switch 27, and the pressure switch 28. The second motor 2 is fixed on the bottom plate, a power output shaft of the second motor 2 is provided with threads, the power output shaft of the second motor 2 is perpendicular to the threaded shaft, and the power output shaft of the second motor 2 is in threaded fit with the threaded shaft. The touch switch 27 is disposed at a side of the fixing clip 23, the pressure switch 28 is disposed inside the fixing clip 23, and a detection end of the pressure switch 28 extends to an outer side of a clamping portion of the fixing clip 23. The pressure switch 28 is electrically connected to the second motor 2 and the touch switch 27, respectively. The automatic triggering part can assist a user in taking and putting the potentiometer. In the initial state, the movable clamp 22 is away from the fixed clamp 23, and the potentiometer to be tested can be placed between the fixed clamp 23 and the movable clamp 22, and then the touch switch 27 is touched, and the second motor 2 is started. The second motor 2 rotates to drive the screw shaft to rotate, so that the movable clamp 22 moves towards the fixed clamp 23 to clamp the potentiometer. During clamping, the pressure switch 28 on the fixed clamp 23 detects the pressure of the fixed clamp 23 and the movable clamp 22 on the potentiometer, and when the pressure reaches a preset pressure, the pressure switch 28 is switched off, the second motor 2 stops working, and the potentiometer is clamped. When the potentiometer needs to be removed, the touch switch 27 is touched to enable the second motor 2 to rotate reversely, the movable clamp 22 is driven to move reversely, and the potentiometer is taken out. The whole process can be realized only by touching the touch switch 27, and the method is simple and quick.

In an embodiment of the present invention, the upper surface of the contact plate 30 is provided with a plurality of connecting columns 37, a limiting block 39 is fixed on the top of the connecting columns 37, the lower surface of the resisting plate 32 is provided with a plurality of connecting grooves 38 matching with the connecting columns 37, the connecting columns 37 extend into the connecting grooves 38, and the limiting block 39 is located inside the connecting grooves 38. After the potentiometer finishes measuring, the threaded rod 35 is lifted, the contact plate 30 is separated from the potentiometer, meanwhile, the connecting column 37 on the contact plate 30 slides down from the connecting groove 38 and is clamped in the connecting groove 38, at the moment, the contact plate 30 is separated from the pressure sensor 33 and still has a point connection with the abutting plate 32, and the pressure sensor 33 is convenient to return to zero.

In one embodiment of the invention, the temperature detection means further comprises a thermometer 71. The thermometer 71 is embedded in the side wall of the case 1, the measuring end of the thermometer 71 is located inside the case 1, and the display end of the thermometer 71 is located outside the case 1. The thermometer 71 can facilitate the user to grasp the temperature inside the case 1 and timely make corresponding temperature regulation.

In one embodiment of the present invention, the temperature sensing component further includes a refrigerator 44. The refrigerator 44 is fixed to the inner bottom wall of the cabinet 1. In addition to the high temperature resistance test, the low temperature resistance test may be performed by cooling the air inside the cabinet 1 by activating the refrigerator 44. The chiller 44 in this embodiment is an air chiller 44 as is common in the art.

In an embodiment of the present invention, the automatic detection device of the potentiometer further includes a limiting column 11, the limiting column 11 is vertically fixed on the inner bottom wall of the chassis 1, and the upper end of the limiting column 11 is higher than the electric heater 41 and the fan 42. The limiting column 11 is arranged to prevent the electric heater 41 and the fan 42 on the inner side wall of the chassis 1 from being damaged due to the over-low descending height of the abutting plate 32.

In one embodiment of the invention, the contact plate 30 has an electrical heating block 45 embedded therein. When the high temperature resistance test is carried out, the electric heating block 45 in the contact plate 30 is started, and the electric heater 41 is matched to accelerate the heating of the air in the case 1, so that the test efficiency is improved.

In an embodiment of the present invention, as shown in fig. 4, the automatic detection apparatus of a potentiometer further includes a detection module, and the detection module includes a pre-amplification circuit, a filter circuit, a mid-amplification circuit, a peak detection circuit, and a control module. The auxiliary detection component is electrically connected with the amplifying circuit, and the amplifying circuit, the filter circuit, the middle amplifying circuit, the peak detection circuit and the control module are electrically connected in sequence. . The device comprises a main measurement component, a control module, a potentiometer, a control module and a control module, wherein the auxiliary measurement component is positioned in a case and connected with a sliding end of the potentiometer, then the part of the auxiliary measurement component positioned outside the case is connected with an input end of a pre-amplification circuit, an output end of the pre-amplification circuit is connected with an input end of a filter circuit, an output end of the filter circuit is connected with an input end of a mid-amplification circuit, an output end of the mid-amplification circuit is connected with an input end of a peak detection circuit, an output end of the peak detection circuit is connected with an input end of the control module, the pre-amplification circuit pre-amplifies a sliding end signal of the potentiometer, then the signal is input into the filter circuit for filtering, the signal is amplified again through the mid-amplification circuit, the signal is detected through the peak.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.

Claims

1. An automatic detection device of a potentiometer is characterized in that: the device comprises a case (1), a fixed seat, a driving part, a pressure detection part, a temperature detection part and an auxiliary measurement part;

the case (1) is hollow, and the fixed seat is fixed on the inner bottom wall of the case (1);

the pressure detection component comprises first slide rails (31), a supporting plate (32), a pressure sensor (33), a threaded ring (34), a threaded rod (35) and a bearing ring (36), the two first slide rails (31) are respectively fixed on the left inner side wall and the right inner side wall of the case (1), two sides of the supporting plate (32) are respectively in sliding connection with the two first slide rails (31), the threaded ring (34) is embedded in the top wall of the case (1), the bearing ring (36) is fixed on the upper surface of the supporting plate (32), the threaded rod (35) is in threaded fit with the threaded ring (34), the lower end of the threaded rod (35) is rotatably connected with the bearing ring (36), the upper end of the threaded rod (35) is located above the case (1) and is connected with the driving component, and the pressure sensor (33) is fixed on the lower surface of the supporting plate (32), the contact plate (30) is arranged at the bottom of the pressure sensor (33);

the temperature detection component comprises an electric heater (41), a fan (42) and a temperature sensor (43), the fan (42) is fixed on the inner side wall of the case (1) through a support, the electric heater (41) is fixed at the input end of the fan (42), and the temperature sensor (43) is fixed on the fixed seat;

the auxiliary measuring component comprises two electric connectors which are respectively arranged on the left side wall and the right side wall of the case (1),

the power connector comprises a power connection piece (51), a wire (52), a power connection clamp (53) and a pressure spring (54), the power connection piece (51) is embedded in the outer side wall of the case (1), the wire (52) is located in the case (1), one end of the wire (52) penetrates through the side wall of the case (1) and the power connection piece (51) are electrically connected, the other end of the wire (52) is electrically connected with the power connection clamp (53), one end of the pressure spring (54) is fixed on the side wall of the case (1), and the other end of the pressure spring (54) is fixedly connected with the end part of the wire (52).

2. An automatic potentiometer detection device as claimed in claim 1, wherein:

the driving part comprises a first motor (62) and a second sliding rail (61);

the two second sliding rails (61) are vertically fixed at the top of the case (1), the first motor (62) is arranged between the two second sliding rails (61), two sides of the first motor (62) are respectively connected with the two second sliding rails (61) in a sliding manner, and the power output end of the first motor (62) is fixedly connected with the upper end of the threaded rod (35).

3. An automatic potentiometer detection device as claimed in claim 1, wherein:

the driving device comprises a cross rod (63) and a hand lever (64);

horizontal pole (63) level setting, the one end of horizontal pole (63) is fixed in the upper end of threaded rod (35), hand pole (64) vertical be fixed in the other end of horizontal pole (63).

4. An automatic potentiometer detection device as claimed in claim 1, wherein:

the fixed seat comprises a bottom plate (21), a fixed clamp (23), a movable clamp (22) and a threaded shaft (24);

fixation clamp (23) are fixed in the one end of bottom plate (21), fluting (25) have been seted up on bottom plate (21), it locates to move clamp (22) cunning on fluting (25), the one end of screw thread axle (24) rotate connect in the lateral wall of fluting (25), the other end of screw thread axle (24) extends to one side of bottom plate (21), screw thread axle (24) with it presss from both sides (22) screw-thread fit to move.

5. An automatic potentiometer detection device as claimed in claim 4, wherein:

the fixed seat also comprises an automatic trigger part, and the automatic trigger part comprises a second motor, a touch switch and a pressure switch;

the second motor is fixed on the bottom plate, a power output shaft of the second motor is provided with threads, the power output shaft of the second motor is perpendicular to the threaded shaft, and the power output shaft of the second motor is in threaded fit with the threaded shaft;

the touch switch is arranged on the side edge of the fixing clamp, the pressure switch is arranged in the fixing clamp, and the detection end of the pressure switch extends to the outer side of the clamping part of the fixing clamp;

the pressure switch is electrically connected with the second motor and the touch switch respectively.

6. An automatic potentiometer detection device as claimed in claim 1, wherein:

contact board (30) upper surface is provided with a plurality of spliced poles (37), and the top of spliced pole (37) is fixed with stopper (39), support the lower surface of board (32) seted up a plurality ofly with spliced pole (37) assorted spread groove (38), spliced pole (37) extend to in spread groove (38), just stopper (39) are located inside spread groove (38).

7. An automatic potentiometer detection device as claimed in claim 1, wherein:

the temperature detection part further comprises a thermometer (71);

the thermometer (71) is embedded in the side wall of the case (1), the measuring end of the thermometer (71) is located inside the case (1), and the display end of the thermometer (71) is located outside the case (1).

8. An automatic potentiometer detection device as claimed in claim 1, wherein:

the temperature detection part further comprises a refrigerator (44);

the refrigerator (44) is fixed to an inner bottom wall of the cabinet (1).

9. An automatic potentiometer detection device as claimed in claim 1, wherein:

the electric fan is characterized by further comprising a limiting column (11), wherein the limiting column (11) is vertically fixed on the inner bottom wall of the case (1), and the upper end of the limiting column (11) is higher than the electric heater (41) and the fan (42).

10. An automatic potentiometer detection device as claimed in claim 1, wherein:

the detection module comprises a pre-amplification circuit, a filter circuit, a mid-amplification circuit, a peak detection circuit and a control module;

the auxiliary detection component is electrically connected with the amplifying circuit, and the amplifying circuit, the filter circuit, the middle amplifying circuit, the peak detection circuit and the control module are electrically connected in sequence.