CN111862718B - Electronic technology experiment table - Google Patents
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- CN111862718B CN111862718B CN202010763366.XA CN202010763366A CN111862718B CN 111862718 B CN111862718 B CN 111862718B CN 202010763366 A CN202010763366 A CN 202010763366A CN 111862718 B CN111862718 B CN 111862718B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B9/00—Simulators for teaching or training purposes
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/18—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism
- G09B23/183—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for circuits
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/18—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism
- G09B23/183—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for circuits
- G09B23/186—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for circuits for digital electronics; for computers, e.g. microprocessors
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Abstract
The invention discloses an electronic technology experiment table, which belongs to the field of electronic technology practical training equipment and is used for solving the problem that the electronic technology experiment table in the prior art is inconvenient to use for practicing circuit board welding; the circuit board welding auxiliary mechanism comprises a lifting table, a circuit board clamp, a connecting plate, a reciprocating screw rod, a positioning rod and a first motor, wherein the side walls of two sides of the lifting groove are respectively provided with a abdicating groove.
Description
This application is divisional application, and the original case patent number is: 201910173757.3, having application date of 3 and 2 months in 2019 and the name of: an electronic technology experiment training comprehensive experiment table.
Technical Field
The invention relates to the field of electronic technology practical training equipment, in particular to an electronic technology experiment table.
Background
The electronic technology course is an important technical basic course of electric and partial non-electric specialties, the electronic technology is a subject with strong practicability and wide practicability, and practical teaching links, namely, experiments, practical training, and other links closely related to theoretical courses, need to be made for mastering the electronic technology; the main contents of the electronic technology training are familiarity with circuit elements, inspection and familiarity with using methods of various tools, welding elements on a circuit board, completing analog electronic technology experiments, digital electronic technology experiments and the like;
some electronic technology comprehensive experiment tables in the prior art mainly complete analog electronic technology experiments and digital electronic technology experiments by setting and replacing analog electronic technology modules and digital electronic technology modules, but students cannot train circuit board welding, and therefore the students need to find a special practical training table for circuit board welding, which is troublesome.
Disclosure of Invention
The invention provides an electronic technology experiment table, which can solve the problem that an electronic technology experiment training comprehensive experiment table in the prior art is inconvenient to practice circuit board welding.
An electronic technology experiment table comprises an experiment table and an experiment plate fixedly mounted at the top of the experiment table, wherein a lifting groove is formed in the middle of the top of the experiment table, and a circuit board welding auxiliary mechanism is arranged in the lifting groove;
the circuit board welding auxiliary mechanism comprises a lifting table, a circuit board clamp fixedly connected to the top of the lifting table, two connecting plates fixedly connected to two sides of the lifting table respectively, a reciprocating screw rod, a positioning rod and a first motor fixedly installed in the lifting groove, wherein abdicating grooves used for abdicating the reciprocating screw rod and the positioning rod are formed in side walls of two sides of the lifting groove respectively;
the experiment table is also provided with a baffle plate used for sealing the lifting groove, two sides of the bottom of the baffle plate are fixedly connected with lug plates, the two lug plates are connected through a first rotating shaft, two ends of the first rotating shaft are respectively and rotatably arranged on the inner walls of two sides of the lifting groove, a first gear is rotatably arranged in the lifting groove, a second rotating shaft is fixedly connected at the center of the first gear, the second rotating shaft is in transmission connection with the first rotating shaft through a first belt transmission mechanism, and a rack matched with the first gear is arranged on one side of the lifting table;
the experimental board is provided with an experimental module mechanism, the experimental module mechanism comprises an experimental table circuit, a power supply module, an analog electronic technology experiment combined module, a digital electronic technology experiment combined module and an oscilloscope, the experimental table circuit is respectively connected with the power supply module, the analog electronic technology experiment combined module and the digital electronic technology experiment combined module, the oscilloscope is connected with the experimental table circuit through a probe line, and a signal source is connected with the experimental table circuit through a probe line.
Preferably, the circuit board clamp comprises a clamp main body, a second motor, a rotary drum and two welding clamps fixedly installed at one end of the rotary drum, a first cavity and a second cavity are formed in the clamp main body, openings are formed at two ends of the second cavity, a part of the rotary drum is rotatably arranged in the clamp main body, a third rotating shaft is arranged in the first cavity, an output shaft of the second motor is in transmission connection with the third rotating shaft, a rotary disc is fixedly connected to one end of the third rotating shaft close to the rotary drum, a groove is formed at one end of the rotary drum close to the rotary disc, the rotary disc is located in the groove, a pawl is hinged to the rotary disc, a spring for pushing the pawl outwards is further arranged on the rotary disc, and a plurality of ratchet grooves matched with the pawl are circumferentially and uniformly formed in the inner wall of the groove, a fourth rotating shaft is further arranged right below the third rotating shaft, a second gear is fixedly arranged on the fourth rotating shaft, a third gear in meshed connection with the second gear is fixedly arranged on the third rotating shaft, one end of the fourth rotating shaft is rotatably arranged in the first cavity, the other end of the fourth rotating shaft extends into the second cavity and is fixedly connected with a first bevel gear, a supporting plate, a connecting shaft and a driving shaft are rotatably arranged on the supporting plate, the driving wheel and the driven shaft are fixedly arranged at one end of the driving shaft, the driven wheel is fixedly arranged at one end of the driven shaft, a polishing belt and a U-shaped plate are arranged on the driving wheel and the driven wheel, a second bevel gear in meshed connection with the first bevel gear is fixedly arranged on the connecting shaft, one end of the driving shaft is inserted into the connecting shaft, the driving shaft and the connecting shaft coaxially rotate, the driving shaft and the driven shaft are in transmission connection through a second belt transmission mechanism, and the U-shaped plate is slidably arranged in the second cavity along the length direction of the connecting shaft.
Preferably, the two welding clamps are symmetrically arranged on the end face of the rotary drum, and the distance between the two welding clamps is two thirds of the diameter length of the end face of the rotary drum.
Preferably, the lifting table is also fixedly connected with a fixed block for placing an electric soldering iron, and the fixed block is provided with a chute.
Preferably, the baffle still has the protection shield through spring coupling, the protection shield is located baffle one end has been seted up and has been accomodate the inslot, the one end department fixedly connected with link of protection shield, the top fixed mounting of laboratory panel with link complex couple.
Preferably, one end of the U-shaped plate, which is far away from the polishing belt, is fixedly connected with a pull ring.
Preferably, the power supply module comprises an alternating current power supply module for providing power frequency sinusoidal alternating current voltage required by the experiment and a direct current power supply module for supplying power to the circuit and serving as a direct current signal source, and the direct current power supply module comprises four paths of +5V power supply output, +12V power supply output, -5V to +5V adjustable power supply output.
Preferably, the analog electronic experiment combination module comprises a triode amplifying circuit module of discrete components, a differential amplifying circuit module consisting of transistors, an integrated operational amplifying circuit module and a rectification filtering voltage stabilizing circuit module, and the digital electronic technology experiment combination module comprises a logic level and pulse input module, a logic level display lamp and digital display module, a universal chip socket module, a universal bread board module and a decoding display module.
Compared with the prior art, the invention has the beneficial effects that: the invention is provided with the circuit board welding auxiliary mechanism to assist students in training of circuit board welding, the rotatable circuit board clamp is arranged, students can conveniently turn the circuit board reversely after welding elements, the abnormal phenomena of tin connection and tin impermeability are conveniently observed, and the circuit board welding auxiliary mechanism is more convenient to use and is also provided with the experiment module mechanism to complete some experiments on circuits.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a front elevation view of the circuit board soldering assist mechanism of the present invention after it has been raised;
FIG. 3 is an enlarged view of a portion of FIG. 2 in accordance with the present invention;
FIG. 4 is an enlarged view of a portion of the present invention at B of FIG. 2;
FIG. 5 is a cross-sectional view taken at C-C of FIG. 2 of the present invention;
FIG. 6 is a cross-sectional view at C-C of FIG. 2 with the circuit board soldering assist mechanism of the present invention lowered;
FIG. 7 is an enlarged view of a portion of the present invention at D of FIG. 5;
FIG. 8 is a cross-sectional view taken at E-E of FIG. 5 in accordance with the present invention;
FIG. 9 is an enlarged fragmentary view at F of FIG. 5 of the present invention;
FIG. 10 is a cross-sectional view taken at G-G of FIG. 7 in accordance with the present invention;
FIG. 11 is a cross-sectional view taken at H-H of FIG. 7 in accordance with the present invention;
FIG. 12 is a cross-sectional view taken at I-I of FIG. 8 in accordance with the present invention;
FIG. 13 is a cross-sectional view taken at J-J of FIG. 10 in accordance with the present invention;
FIG. 14 is a cross-sectional view at J-J of FIG. 10 after the sanding belt of the present invention has been pushed out;
fig. 15 is a schematic structural view of a baffle plate of the present invention.
Description of reference numerals:
1-test bench, 2-test board, 3-lifting groove, 4-baffle, 5-lug, 6-first rotating shaft, 7-first gear, 8-second rotating shaft, 9-first belt transmission mechanism, 11-lifting table, 12-connecting board, 13-reciprocating screw rod, 14-positioning rod, 15-first motor, 16-abdicating groove, 17-rack, 18-fixing block, 19-chute, 21-clamp body, 22-second motor, 23-rotating cylinder, 24-welding clamp, 25-first cavity, 26-second cavity, 27-third rotating shaft, 28-rotating disc, 29-groove, 30-second bevel gear, 31-pawl, 32-ratchet groove, 33-fourth rotating shaft, 34-second gear, 35-third gear, 36-first bevel gear, 37-support plate, 38-connecting shaft, 39-driving shaft, 391-driving wheel, 40-driven shaft, 401-driven wheel, 41-polishing belt, 42-U-shaped plate, 43-second belt transmission mechanism, 44-pull ring, 51-protection plate, 52-accommodating groove, 53-hanging ring, 54-hook, 61-power module, 62-analog electronic technology experiment combined module, 63-digital electronic technology experiment combined module and 64-oscilloscope.
Detailed Description
An embodiment of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the embodiment.
As shown in fig. 1 to 15, an electronic technology experiment table provided in an embodiment of the present invention includes an experiment table 1 and an experiment plate 2 fixedly mounted on the top of the experiment table 1, wherein a lifting groove 3 is formed in the middle of the top of the experiment table 1, and a circuit board welding auxiliary mechanism is arranged in the lifting groove 3;
the circuit board welding auxiliary mechanism comprises a lifting table 11, a circuit board clamp fixedly connected to the top of the lifting table 11, two connecting plates 12 fixedly connected to two sides of the lifting table 11 respectively, a reciprocating screw 13, a positioning rod 14 and a first motor 15 fixedly installed in the lifting groove 3, wherein the side walls of two sides of the lifting groove 3 are provided with a yielding groove 16 used for yielding the reciprocating screw 13 and the positioning rod 14 respectively, the reciprocating screw 13 is rotatably arranged in one of the yielding grooves 16, the positioning rod 14 is fixedly installed in the other yielding groove 16, one of the connecting plates 12 is in threaded connection with the reciprocating screw 13, and the other connecting plate 12 is sleeved on the positioning rod 14;
the experiment table 1 is further provided with a baffle 4 used for sealing the lifting groove 3, two sides of the bottom of the baffle 4 are fixedly connected with lug plates 5, the two lug plates 5 are connected through a first rotating shaft 6, two ends of the first rotating shaft 6 are respectively and rotatably arranged on the inner walls of two sides of the lifting groove 3, a first gear 7 is rotatably arranged in the lifting groove 3, a second rotating shaft 8 is fixedly connected to the center of the first gear 7, the second rotating shaft 8 is in transmission connection with the first rotating shaft 6 through a first belt transmission mechanism 9, and one side of the lifting table 11 is provided with a rack 17 matched with the first gear 7;
the circuit board clamp comprises a clamp main body 21, a second motor 22, a rotary drum 23 and two welding clamps 24 fixedly installed at one end of the rotary drum 23, wherein a first cavity 25 and a second cavity 26 are formed in the clamp main body 21, openings are formed at two ends of the second cavity 26, a part of the rotary drum 23 is rotatably arranged in the clamp main body 21, a third rotating shaft 27 is arranged in the first cavity 25, an output shaft of the second motor 22 is in transmission connection with the third rotating shaft 27, a rotary disc 28 is fixedly connected to one end, close to the rotary drum 23, of the third rotating shaft 27, a groove 29 is formed at one end, close to the rotary disc 28, of the rotary drum 23, the rotary disc 28 is located in the groove 29, a pawl 31 is hinged to the rotary disc 28, a spring for pushing the pawl 31 outwards is further arranged on the rotary disc 28, and a plurality of ratchet grooves 32 matched with the pawl 31 are circumferentially and uniformly formed on the inner wall of the groove 29, a fourth rotating shaft 33 is further disposed right below the third rotating shaft 27, a second gear 34 is fixedly mounted on the fourth rotating shaft 33, a third gear 35 engaged with the second gear 34 is fixedly mounted on the third rotating shaft 27, one end of the fourth rotating shaft 33 is rotatably disposed in the first cavity 25, the other end of the fourth rotating shaft 33 extends into the second cavity 26 and is fixedly connected with a first bevel gear 36, a support plate 37, a connecting shaft 38 rotatably disposed on the support plate 37, a driving shaft 39, a driving wheel 391 fixedly mounted at one end of the driving shaft 39, a driven shaft 40, a driven wheel 401 fixedly mounted at one end of the driven shaft 40, a polishing belt 41 and a U-shaped plate 42 mounted on the driving wheel 391 and the driven wheel 401 are disposed in the second cavity 26, a second bevel gear 30, a second bevel gear 42 engaged with the first bevel gear 36 is fixedly mounted on the connecting shaft 38, One end of the driving shaft 39 is inserted into the connecting shaft 38, the driving shaft 39 and the connecting shaft 38 rotate coaxially, the driving shaft 39 and the driven shaft 40 are in transmission connection through a second belt transmission mechanism 43, and the U-shaped plate 42 is slidably arranged in the second cavity 26 along the length direction of the connecting shaft 38.
The connecting plate 12 is square, and when the reciprocating screw 13 rotates, the connecting plate 12 can only move up and down, so that the lifting platform 11 is driven to move up and down;
the first belt transmission mechanism 9 and the second belt transmission mechanism 43 are both composed of two transmission wheels and a transmission belt, the transmission belt is arranged on the two transmission wheels, and the two transmission wheels are respectively arranged on two shafts to be transmitted;
the protective plate 51 and the baffle 4 play a role in protecting instruments and modules on the experimental plate 2;
when the second motor 22 drives the circuit board fixed on the soldering clamp 24 to turn over under a series of transmission, the polishing belt 41 is also in motion, but the polishing belt 41 is positioned in the second cavity 26 and cannot affect welding or other aspects;
the electric soldering iron for soldering the circuit board is not shown in the drawing, and is used by an external power supply.
Further, two welding clamps 24 are symmetrically installed on the end surface of the rotating cylinder 23, and the distance between the two welding clamps 24 is two thirds of the diameter length of the end surface of the rotating cylinder 23.
Further, a fixed block 18 for placing an electric soldering iron is fixedly connected to the lifting table 11, and a chute 19 is formed in the fixed block 18.
Further, the baffle 4 is further connected with a protection plate 51 through a spring, the protection plate 51 is located in the storage groove 52 is formed in one end of the baffle 4, a hanging ring 53 is fixedly connected to one end of the protection plate 51, and a hook 54 matched with the hanging ring 53 is fixedly installed at the top of the experiment board 2.
Further, a pull ring 44 is fixedly connected to an end of the U-shaped plate 42 away from the polishing belt 41.
Furthermore, an experiment module mechanism is arranged on the experiment board 2, the experiment module mechanism comprises an experiment table circuit, a power supply module 61, an analog electronic technology experiment combined module 62, a digital electronic technology experiment combined module 63 and an oscilloscope 64, the experiment table circuit is respectively connected with the power supply module 61, the analog electronic technology experiment combined module 62 and the digital electronic technology experiment combined module 63, the oscilloscope 64 is connected with the experiment table circuit through a probe line, and a signal source is connected with the experiment table circuit through a probe line;
the power supply module 61 comprises an alternating current power supply module for providing power frequency sinusoidal alternating current voltage required by an experiment and a direct current power supply module for supplying power to a circuit and serving as a direct current signal source, wherein the direct current power supply module comprises four paths of +5V power supply output, +12V power supply output, -5V adjustable power supply output;
the combined module 62 for analog electronic experiment comprises a triode amplifying circuit module of discrete components, a differential amplifying circuit module consisting of transistors, an integrated operational amplifying circuit module and a rectification filtering voltage stabilizing circuit module, and the combined module 63 for digital electronic technology experiment comprises a logic level and pulse input module, a logic level display lamp and digital display module, a universal chip socket module, a universal bread board module and a decoding display module.
The analog electronic experiment combined module 62 is respectively a triode amplifying circuit module of discrete components, a differential amplifying circuit module consisting of transistors, an integrated operational amplifying circuit module and a rectification filtering voltage stabilizing circuit module, and the modules can be arbitrarily plugged according to experiment requirements, so that the combination is convenient; the digital electronic technology experiment combined module 63 comprises a logic level and pulse input module, a logic level display lamp and digital display module, a universal chip socket module, a universal bread board module, a decoding display module and the like, and the modules can be arbitrarily plugged according to experiment requirements and are convenient to combine;
the oscilloscope is used for testing parameters such as signal waveform, amplitude, frequency, period and the like in an experiment and is arranged on an experiment table in a disc mode; the signal source is used for providing input signals with adjustable frequency amplitude values, such as sine waves, square waves and the like, in an experiment, and is arranged behind an analog electronic technology module on an experiment table in a disc mode.
The working principle is as follows: when the circuit board welding auxiliary mechanism needs to be used, the first motor 15 is started, the first motor 15 drives the reciprocating screw rod 13 to rotate, so that the lifting platform 11 rises, when the lifting platform 11 rises, the rack 17 on the lifting platform 11 drives the first gear 7 to rotate, so that the second rotating shaft 8 rotates, the second rotating shaft 8 synchronously rotates with the first rotating shaft 6 through the first belt transmission mechanism 9, so that the baffle 4 is opened, when the lifting platform 11 rises to the top, the first motor 15 is closed, the protective plate 51 is pulled out from the accommodating groove 52 of the baffle 4 to be hung on the hanging ring 53 on the protective plate 51 and hung on the hanging hook 54 of the experimental plate 2, the circuit board is fixed through the two welding clamps 24 and then is welded, when the circuit board needs to be turned over to observe the welding condition of the back side of the circuit board, the second motor 22 is started, the second motor 22 drives the third rotating shaft 27 to rotate, the pawl 31 on the rotating disc 28 is clamped in the ratchet groove 32 on the side wall of the groove 29, so as to drive the rotating drum 23 to rotate, namely, the circuit board is turned over, the electric soldering iron head is easy to generate an oxide layer under long-time use and irregular operation of students, the tin coating effect is influenced, at the moment, the second motor 22 is started to turn over, the second motor 22 drives the third rotating shaft 27 to rotate, the ratchets on the turntable 28 are not clamped in the ratchet groove 32, namely, the third rotating shaft 27 does not drive the rotary drum 23 to rotate, but drives the fourth rotating shaft 33 to rotate through the meshing of the second gear 34 and the third gear 35, the fourth rotating shaft 33 drives the connecting shaft 38 to rotate under the transmission of the first bevel gear 36 and the second bevel gear 30, the driving shaft 39 and the connecting shaft 38 rotate coaxially, the driving shaft 39 drives the driven shaft 40 to rotate through the second belt transmission mechanism 43, so that the polishing belt 41 is moved, the U-shaped plate 42 is pushed inwards through the pull ring 44, the driving wheel 391, the driven wheel 401, the polishing belt 41 and the like are pushed out of the clamp main body 21, then the electric soldering iron head is inclined at a certain angle to polish the oxide layer and then is soldered, after polishing, the second motor 22 is closed, the polishing belt 41 and the like are pulled back to the initial position through the pull ring 44, after the circuit board welding auxiliary mechanism is used, the protection plate 51 is retracted into the accommodating groove 52, the first motor 15 is started, the reciprocating screw 13 drives the lifting platform 11 to move downwards, when the lifting platform 11 is to be lowered to the lowest position, the rack 17 on the lifting platform 11 drives the first gear 7 to overturn, the lifting groove 3 is sealed by the baffle plate 4, and corresponding electronic technology experiments are completed by combining various modules of the analog electronic technology experiment module 62 or the digital electronic experiment technology module 63.
The above disclosure is only for a few specific embodiments of the present invention, however, the present invention is not limited to the above embodiments, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.
Claims (6)
1. An electronic technology experiment table is characterized by comprising an experiment table and an experiment plate fixedly mounted at the top of the experiment table, wherein a lifting groove is formed in the middle of the top of the experiment table, and a circuit board welding auxiliary mechanism is arranged in the lifting groove;
the circuit board welding auxiliary mechanism comprises a lifting table, a circuit board clamp fixedly connected to the top of the lifting table, two connecting plates fixedly connected to two sides of the lifting table respectively, a reciprocating screw rod, a positioning rod and a first motor fixedly installed in the lifting groove, wherein abdicating grooves used for abdicating the reciprocating screw rod and the positioning rod are formed in side walls of two sides of the lifting groove respectively;
the experiment table is also provided with a baffle plate used for sealing the lifting groove, two sides of the bottom of the baffle plate are fixedly connected with lug plates, the two lug plates are connected through a first rotating shaft, two ends of the first rotating shaft are respectively and rotatably arranged on the inner walls of two sides of the lifting groove, a first gear is rotatably arranged in the lifting groove, a second rotating shaft is fixedly connected at the center of the first gear, the second rotating shaft is in transmission connection with the first rotating shaft through a first belt transmission mechanism, and a rack matched with the first gear is arranged on one side of the lifting table;
the experimental board is provided with an experimental module mechanism, the experimental module mechanism comprises an experimental table circuit, a power supply module, an analog electronic technology experiment combined module, a digital electronic technology experiment combined module and an oscilloscope, the experimental table circuit is respectively connected with the power supply module, the analog electronic technology experiment combined module and the digital electronic technology experiment combined module, the oscilloscope is connected with the experimental table circuit through a probe line, and a signal source is connected with the experimental table circuit through a probe line;
the circuit board clamp comprises a clamp main body, a second motor, a rotary drum and two welding clamps fixedly arranged at one end of the rotary drum, wherein a first cavity and a second cavity are formed in the clamp main body, openings are formed in two ends of the second cavity, a part of the rotary drum is rotatably arranged in the clamp main body, a third rotary shaft is arranged in the first cavity, an output shaft of the second motor is in transmission connection with the third rotary shaft, a rotary disc is fixedly connected to one end, close to the rotary drum, of the third rotary shaft, a groove is formed in one end, close to the rotary disc, of the rotary drum, the rotary disc is positioned in the groove, a pawl is hinged to the rotary disc, a spring for pushing the pawl outwards is further arranged on the rotary disc, a plurality of ratchet grooves matched with the pawl are circumferentially and uniformly formed in the inner wall of the groove, and a fourth rotary shaft is further arranged under the third rotary shaft, a second gear is fixedly arranged on the fourth rotating shaft, a third gear meshed with the second gear is fixedly arranged on the third rotating shaft, one end of the fourth rotating shaft is rotatably arranged in the first cavity, the other end of the fourth rotating shaft extends into the second cavity and is fixedly connected with a first bevel gear, a supporting plate, a connecting shaft rotatably arranged on the supporting plate, a driving shaft, a driving wheel fixedly arranged at one end of the driving shaft, a driven wheel fixedly arranged at one end of the driven shaft, a polishing belt and a U-shaped plate are arranged on the driving wheel and the driven wheel, a second bevel gear meshed with the first bevel gear is fixedly arranged on the connecting shaft, one end of the driving shaft is inserted into the connecting shaft, and the driving shaft and the coaxial connecting shaft rotate, the driving shaft and the driven shaft are in transmission connection through a second belt transmission mechanism, and the U-shaped plate is slidably arranged in the second cavity along the length direction of the connecting shaft.
2. An electronic technology laboratory table according to claim 1, wherein two said welding clamps are symmetrically mounted on the end face of said rotary drum, and the distance between said two welding clamps is two thirds of the diameter length of the end face of said rotary drum.
3. The electronic technology experiment table as claimed in claim 1, wherein a fixed block for placing an electric soldering iron is fixedly connected to the lifting table, and the fixed block is provided with a chute.
4. The electron technology experiment table as claimed in claim 1, wherein the baffle is further connected with a protection plate through a spring, the protection plate is located at one end of the baffle and provided with a receiving groove, a hanging ring is fixedly connected to one end of the protection plate, and a hook matched with the hanging ring is fixedly installed at the top of the experiment table.
5. The electronic technology experiment table of claim 1, wherein the power supply module comprises an ac power supply module for providing a power frequency sinusoidal ac voltage required for the experiment, a dc power supply module for supplying power to the circuit and for use as a dc signal source, and the dc power supply module comprises four paths of +5V power supply output, +12V power supply output, -5V- +5V adjustable power supply output.
6. The electronic technology experiment table of claim 5, wherein the analog electronic technology experiment combination module comprises a triode amplifying circuit module of discrete components, a differential amplifying circuit module consisting of transistors, an integrated operational amplifying circuit module and a rectification, filtering and voltage stabilizing circuit module, and the digital electronic technology experiment combination module comprises a logic level and pulse input module, a logic level display lamp and digital display module, a universal chip socket module, a universal bread board module and a decoding display module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010763366.XA CN111862718B (en) | 2019-03-02 | 2019-03-02 | Electronic technology experiment table |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010763366.XA CN111862718B (en) | 2019-03-02 | 2019-03-02 | Electronic technology experiment table |
| CN201910173757.3A CN109785705B (en) | 2019-03-02 | 2019-03-02 | Real comprehensive experiment platform of instructing of electron technology experiment |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910173757.3A Division CN109785705B (en) | 2019-03-02 | 2019-03-02 | Real comprehensive experiment platform of instructing of electron technology experiment |
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| Publication Number | Publication Date |
|---|---|
| CN111862718A CN111862718A (en) | 2020-10-30 |
| CN111862718B true CN111862718B (en) | 2021-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010763366.XA Active CN111862718B (en) | 2019-03-02 | 2019-03-02 | Electronic technology experiment table |
| CN201910173757.3A Active CN109785705B (en) | 2019-03-02 | 2019-03-02 | Real comprehensive experiment platform of instructing of electron technology experiment |
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| CN201910173757.3A Active CN109785705B (en) | 2019-03-02 | 2019-03-02 | Real comprehensive experiment platform of instructing of electron technology experiment |
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| CN112908103A (en) * | 2021-04-21 | 2021-06-04 | 日照职业技术学院 | Computer teaching device for classroom |
| CN113270020B (en) * | 2021-05-20 | 2022-09-09 | 新乡学院 | Be applied to simulation model for teaching of preschool education specialty |
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Also Published As
| Publication number | Publication date |
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| CN109785705A (en) | 2019-05-21 |
| CN111862718A (en) | 2020-10-30 |
| CN109785705B (en) | 2020-10-23 |
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