CN212010055U

CN212010055U - Real case of instructing of small-size PLC control system

Info

Publication number: CN212010055U
Application number: CN202021036991.6U
Authority: CN
Inventors: 余德泉
Original assignee: Hunan Industrial Control Band Network Technology Co ltd
Current assignee: Hunan Industrial Control Band Network Technology Co ltd
Priority date: 2020-06-08
Filing date: 2020-06-08
Publication date: 2020-11-24
Anticipated expiration: 2030-06-08

Abstract

The utility model discloses a practical training box of a small PLC control system, which comprises an electric box, a mounting plate, a wire slot, an air switch, an AC contactor, a relay, a switching power supply, a PLC controller, a touch screen, a wiring terminal, a stepping motor driver and a screw rod mechanism; the electric box comprises a box body and a box door, wherein one end of the box door is hinged with the box body, and the other end of the box door is matched with the box body in an openable and closable manner; the mounting plate is fixed at the bottom of the box body; the air switch, the alternating current contactor, the relay, the stepping motor driver and the switching power supply are arranged in a third mounting area, the PLC is arranged in a second mounting area, and the wiring terminal is arranged in the first mounting area; the screw rod mechanism is arranged on the side wall of the box body and is positioned on one side of the first wire groove; the touch screen is arranged on the box door; the real case of instructing of small-size PLC control system of this application is box structure, and empty division, ac contactor, relay, switching power supply, PLC controller and binding post are all installed in the box, conveniently carry, walk the line convenience, clean and tidy, and rationally distributed compactness.

Description

Real case of instructing of small-size PLC control system

Technical Field

The utility model relates to a teaching apparatus technical field, concretely relates to real case of instructing of small-size PLC control system.

Background

The PLC (programmable logic device) is electrical equipment which is very commonly used in a plurality of fields of modern industry, agriculture and the like, and external equipment can be controlled to work according to a program as long as the pre-programmed program is written into the PLC, so that the PLC is very flexible to use. At present, many students only study theoretically in learning PLC courses, but do not actually exercise on real PLC equipment, and the students lack practical experience. The utility model discloses a chinese utility model patent that publication number is CN209471590U discloses "a teaching platform for real standard of PLC", it is through the real standard the control unit of installation PLC on the operation panel, fixed mounting PLC equipment, display, touch-sensitive screen etc. on the PLC microscope carrier, the debugging of PLC program is realized to the usable this teaching platform of student, reaches real purpose of instructing. However, the teaching platform with the structure has large volume and is very inconvenient to carry.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model aims at providing a real case of instructing of small-size PLC control system who conveniently carries.

The utility model adopts the technical proposal that:

a small PLC control system training box comprises an electric box, a mounting plate, a wire slot, an air switch, an alternating current contactor, a relay, a switching power supply, a PLC controller, a touch screen, a wiring terminal, a stepping motor driver and a screw rod mechanism; the electric box comprises a box body and a box door, wherein one end of the box door is hinged with the box body, and the other end of the box door is matched with the box body in an openable and closable manner; the mounting plate is fixed at the bottom of the box body; the wire grooves comprise a first wire groove, a second wire groove, a third wire groove, a fourth wire groove, a fifth wire groove and a sixth wire groove, wherein the lengths of the fourth wire groove and the fifth wire groove are smaller than the length of the second wire groove, and the length of the sixth wire groove is larger than the length of the fourth wire groove and smaller than the length of the second wire groove; the first wire groove, the second wire groove, the third wire groove and the fourth wire groove are arranged along the edge of the mounting plate and are sequentially connected to form an open semi-closed mounting area, one end of the fifth wire groove is connected with the third wire groove and is parallel to the fourth wire groove, the third wire groove, the fourth wire groove and the fifth wire groove are encircled to form a first mounting area with one open end, one end of the sixth wire groove is connected with the first wire groove and is parallel to the second wire groove, and the rest mounting areas are divided into a second mounting area and a third mounting area; the air switch, the alternating current contactor, the relay, the stepping motor driver and the switching power supply are arranged in a third mounting area, the PLC is arranged in a second mounting area, and the wiring terminal is arranged in the first mounting area; the screw rod mechanism is arranged on the side wall of the box body and is positioned on one side of the first wire groove; the touch screen is arranged on the box door.

Further, still install motor and converter in the box, motor and converter are installed in the second installing zone.

Further, lead screw mechanism includes step motor, lead screw, slider, guide rail and mount pad, the mount pad is U type structure, and the bottom of mount pad is installed on the box, step motor installs in the one end of mount pad, and is connected with the step motor driver, the both ends of lead screw are rotatable respectively and install the both ends of mount pad, and the one end of lead screw passes through the shaft coupling and is connected with the step motor output shaft, guide rail fixed mounting is in the bottom of mount pad, slider screw-thread fit is on the lead screw, and with guide rail sliding fit.

Further, a buzzer is mounted on the box door.

Further, an emergency stop button is installed on the box door.

Further, a knob switch is installed on the box door.

Furthermore, an indicator light is arranged on the box door.

Further, the wire casing includes U type groove and apron, the apron is with buckle complex mode lock on U type groove.

Further, the bottom in U type groove is fixed on the mounting panel, along the length direction in U type groove, and be located the both sides interval in U type groove and be equipped with a plurality of bar holes.

Furthermore, a handle is fixedly arranged on one side of the box body.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural diagram of a practical training box of a small PLC control system according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of another direction of the practical training box of the small PLC control system provided in the embodiment of the present application;

FIG. 3 is a schematic structural diagram of a box provided in the embodiment of the present application;

FIG. 4 is a schematic diagram of a layout of a box according to an embodiment of the present disclosure;

fig. 5 is a schematic view of a slot structure provided in an embodiment of the present application;

FIG. 6 is a schematic structural diagram of a lead screw mechanism provided in an embodiment of the present application;

fig. 7 is a schematic view of a foot rest structure according to an embodiment of the present disclosure;

fig. 8 is a circuit connection block diagram of a practical training box of the small PLC control system according to the embodiment of the present application.

The device comprises a box body 1, a box door 2, a touch screen 3, an indicator lamp 4, an emergency stop button 5, a buzzer 6, a knob switch 7, a screw rod mechanism 8, a stepping motor 801, a mounting seat 802, a screw rod 803, a sliding block 804, a guide rail 805, a position sensor 806, an air switch 9, an alternating current contactor 10, a relay 12, a stepping motor driver 13, a switching power supply 14, a frequency converter 15, a wiring terminal 16, a PLC (programmable logic controller) 17, a lifting handle 18, a wire groove 19, a first wire groove 191, a second wire groove 192, a third wire groove 193, a fourth wire groove 194, a fifth wire groove 195, a sixth wire groove 196, a U-shaped groove 1901, a cover plate 1902, a strip-shaped hole 1903, a motor 20, a mounting plate 21, a foot rest 22, a base 221.

Detailed Description

Here, it is to be noted that the functions, methods, and the like related to the present invention are only conventional adaptive applications of the related art. Therefore, the present invention is an improvement of the prior art, which substantially lies in the connection relationship between hardware, not in the functions and methods themselves, that is, the present invention relates to a few functions and methods, but does not include the improvements proposed in the functions and methods themselves. The present invention is described for better illustration of the function and method for better understanding of the present invention.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

Referring to fig. 1 to 4, a practical training box of a small PLC control system includes an electric box, a mounting plate 21, a wire slot 19, an air switch 9, an ac contactor 10, a relay 12, a switching power supply 14, a PLC controller 17, a touch screen 3, a wiring terminal 16, a stepping motor driver and a screw mechanism 8; the electric box comprises a box body 1 and a box door 2, wherein one end of the box door 2 is hinged with the box body 1, and the other end of the box door 2 is matched with the box body 1 in an openable and closable manner; the mounting plate 21 is fixed at the bottom of the box body 1; the wire grooves 19 include a first wire groove 191, a second wire groove 192, a third wire groove 193, a fourth wire groove 194, a fifth wire groove 195 and a sixth wire groove 196, the lengths of the fourth wire groove 194 and the fifth wire groove 195 are smaller than the length of the second wire groove 192, and the length of the sixth wire groove 196 is greater than the length of the fourth wire groove 194 and smaller than the length of the second wire groove 192; the first wire groove 191, the second wire groove 192, the third wire groove 193 and the fourth wire groove 194 are arranged along the edge of the mounting plate 21 and are sequentially connected to form an open semi-closed mounting area, one end of the fifth wire groove 195 is connected with the third wire groove 193 and is parallel to the fourth wire groove 194, the third wire groove 193, the fourth wire groove 194 and the fifth wire groove 195 are enclosed to form a first mounting area with one open end, one end of the sixth wire groove 196 is connected with the first wire groove 191 and is parallel to the second wire groove 192, and the rest of the mounting area is divided into a second mounting area and a third mounting area; the air switch 9, the alternating current contactor 10, the relay 12, the stepping motor driver and the switching power supply 14 are arranged in a third installation area, the PLC 17 is arranged in a second installation area, and the wiring terminal 16 is arranged in a first installation area; the screw rod mechanism 8 is arranged on the side wall of the box body 1 and is positioned on one side of the first wire groove 191; the touch screen 3 is installed on the box door 2.

The practical training box of the small PLC control system is of a box body 1 structure, and the air switch 9, the alternating current contactor 10, the relay 12, the switching power supply 14, the PLC controller 17 and the wiring terminal 16 are all installed in the box body 1 and are convenient to carry; the touch screen 3 is arranged on the box door 2, the touch screen 3 is connected with the PLC 17, and learning contents such as picture making, man-machine interaction and the like can be conveniently learned through the touch screen 3. A wire slot 19 is arranged in the box body 1, the box body 1 is divided into a first mounting area, a second mounting area and a third mounting area through the wire slot 19, the air switch 9, the alternating current contactor 10, the relay 12, the stepping motor driver and the switching power supply 14 are mounted in the third mounting area, the PLC 17 is mounted in the second mounting area, the wiring terminal 16 is mounted in the first mounting area, a circuit is wired through the wire slot 19, wiring is convenient and tidy, and layout is reasonable and compact; install screw mechanism 8 at the lateral wall of box 1, further effectively utilized the space in the box 1, made the real case structure of instructing of this application compacter.

The air switch 9, the alternating current contactor 10, the relay 12, the switching power supply 14, the PLC 17, the touch screen 3, the wiring terminal 16, the stepping motor driver and the screw rod mechanism 8 are connected in a conventional connection mode.

Referring to fig. 8, in an exemplary embodiment, the air switch 9 is a true earth leakage switch, model DZ47LE-32, rated current 20A, one end of which is connected to the mains supply and the other end of which is connected to the ac contactor 10, the relay 12 and the switching power supply 14 in sequence; the model of the alternating current contactor 10 is CJX20910, and the model of the relay 12 is ZYS 4N-J; the switching power supply 14 is respectively connected with the PLC 17, the touch screen 3 and the stepping motor driver, and converts 220V commercial power into 24V low-voltage power supply. The PLC 17 is respectively communicated with the touch screen 3 and a stepping motor driver, and the stepping motor driver is communicated with the screw rod mechanism 8 to drive the screw rod mechanism 8 to act; the PLC controller 17 is of a model number S7-200.

Referring to fig. 6, the screw mechanism 8 includes a stepping motor 801, a screw 803, a slider 804, a guide rail 805 and a mounting base 802, the mounting base 802 is a U-shaped structure, the bottom of the mounting base 802 is mounted on the side wall of the box 1 through a bolt, the stepping motor 801 is mounted at one end of the mounting base 802 and connected with a stepping motor driver, two ends of the screw 803 are respectively rotatably mounted at two ends of the mounting base 802, one end of the screw 803 is connected with an output shaft of the stepping motor 801 through a coupler, the guide rail 805 is fixedly mounted at the bottom of the mounting base 802, and the slider 804 is in threaded fit with the screw 803 and is in sliding fit with the guide rail 805. The PLC controller 17 is connected to the stepping motor driver, and the PLC controller 17 sends a control instruction to the stepping motor driver, so as to drive the stepping motor 801 to drive the lead screw 803 to rotate, so that the slider 804 moves on the guide rail 805. The mount 802 is further provided with three position sensors 806, the three position sensors 806 are respectively mounted at two ends and in the middle of the mount 802, and the position sensors 806 are used for detecting and feeding back the position of the slider 804. The PLC 17 and the stepping motor driver are used for controlling the action of the screw rod mechanism 8, so that the learning of high-speed pulse, the learning of analog quantity, the motion control learning and the like can be realized.

Through the touch screen 3 and the PLC 17, learning contents such as picture making, man-machine interaction and the like can be learned.

Preferably, the housing 1 is further provided with a motor 20 and a frequency converter 15, and the motor 20 and the frequency converter 15 are arranged in the second mounting area. The frequency converter 15 is connected with the switching power supply 14 and is powered by the switching power supply 14; the frequency converter 15 is also communicated with the PLC controller 17, and drives the motor 20 to operate according to a control command of the PLC controller 17.

Preferably, the door 2 is provided with a buzzer 6, an emergency stop button 5, a rotary switch 7 and an indicator lamp 4, the buzzer 6, the emergency stop button 5, the rotary switch 7 and the indicator lamp 4 are all connected with the PLC controller 17, and the PLC controller 17 controls the stepping motor 801 or the motor 20 to operate, or makes a corresponding response according to a control instruction of the PLC controller 17. If the knob switch 7 can adjust the rotation speed of the stepping motor 801 or the motor 20, the emergency stop button 5 can control the stepping motor 801 or the motor 20 to stop, when the stepping motor 801 or the motor 20 has a preset condition, the buzzer 6 can give out a buzzer alarm, and the indicator lamp 4 is lightened according to a preset state. The switching value simulation can be carried out through the buzzer 6, the emergency stop button 5, the knob switch 7, the indication type and the PLC 17, so that students can master the learning of the switching value.

Referring to fig. 5, in an exemplary embodiment, the wire chase 19 includes a U-shaped channel 1901 and a cover 1902, the cover 1902 being snap-fit over the U-shaped channel 1901. During installation, the bottom of the U-shaped groove 1901 is fixed to the mounting plate 21 by bolts, and a plurality of strip-shaped holes 1903 are formed along the length direction of the U-shaped groove 1901 and on both sides of the U-shaped groove 1901 at intervals.

The wiring duct 19, the air switch 9, the alternating current contactor 10, the relay 12, the switching power supply 14, the PLC controller 17, the touch screen 3, the wiring terminal 16, the stepping motor driver and the screw rod mechanism 8 are all installed on the installation plate 21, and the installation plate 21 is installed in the box body 1 after the wiring duct 19, the air switch 9, the alternating current contactor 10, the relay 12, the switching power supply 14, the PLC controller 17, the touch screen 3, the wiring terminal 16, the stepping motor driver and the screw rod mechanism 8 are installed on the installation plate 21; the space of certain distance of interval between the relative both ends of mounting panel 21 and the box 1 correspond the end inner wall can conveniently walk the line on the one hand, and on the other hand conveniently dispels the heat.

Referring to fig. 7, the motor 20 may be installed in the case 1 by a foot stand 22. Specifically, the foot stand 22 includes a base 221 and a fixing seat 222, the fixing seat 222 is vertically fixed on the base 221, and a circular through hole 223 is formed in the fixing seat 222. The base 221 is mounted on the mounting plate 21 by bolts, the motor 20 is fixed on the fixing base 222 by bolts, and the output shaft thereof passes through the circular through hole 223.

For carrying convenience, a handle 18 is fixedly arranged on one side of the box body 1.

In this application, unless expressly stated or limited otherwise, the terms "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral combinations thereof; may be an electrical connection; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the specification of the present invention, a large number of specific details are explained. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, systems, and techniques have not been shown in detail in order not to obscure an understanding of this description.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, system, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, systems, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. A small-sized PLC control system training box is characterized by comprising an electric box, a mounting plate (21), a wire groove (19), an air switch (9), an alternating current contactor (10), a relay (12), a switching power supply (14), a PLC controller (17), a touch screen (3), a wiring terminal (16), a stepping motor driver and a screw rod mechanism (8); the electric box comprises a box body (1) and a box door (2), wherein one end of the box door (2) is hinged with the box body (1), and the other end of the box door is matched with the box body (1) in an openable and closable manner; the mounting plate (21) is fixed at the bottom of the box body (1); the wire grooves (19) comprise a first wire groove (191), a second wire groove (192), a third wire groove (193), a fourth wire groove (194), a fifth wire groove (195) and a sixth wire groove (196), the lengths of the fourth wire groove (194) and the fifth wire groove (195) are smaller than the length of the second wire groove (192), and the length of the sixth wire groove (196) is larger than the length of the fourth wire groove (194) and smaller than the length of the second wire groove (192); the first wire groove (191), the second wire groove (192), the third wire groove (193) and the fourth wire groove (194) are arranged along the edge of the mounting plate (21) and are sequentially connected to form an open semi-closed mounting area, one end of the fifth wire groove (195) is connected with the third wire groove (193) and is parallel to the fourth wire groove (194), the third wire groove (193), the fourth wire groove (194) and the fifth wire groove (195) are enclosed to form a first mounting area with one open end, one end of the sixth wire groove (196) is connected with the first wire groove (191) and is parallel to the second wire groove (192), and the rest mounting areas are divided into a second mounting area and a third mounting area; the air switch (9), the alternating current contactor (10), the relay (12), the stepping motor driver and the switching power supply (14) are arranged in a third installation area, the PLC (17) is arranged in a second installation area, and the wiring terminal (16) is arranged in a first installation area; the screw rod mechanism (8) is arranged on the side wall of the box body (1) and is positioned on one side of the first wire groove (191); the touch screen (3) is arranged on the box door (2).

2. The practical training box for the small PLC control system according to claim 1, characterized in that a motor (20) and a frequency converter (15) are further installed in the box body (1), and the motor (20) and the frequency converter (15) are installed in a second installation area.

3. The practical training box for the small PLC control system according to claim 1, wherein the lead screw mechanism (8) comprises a stepping motor (801), a lead screw (803), a sliding block (804), a guide rail (805) and a mounting seat (802), the mounting seat (802) is of a U-shaped structure, the bottom of the mounting seat (802) is installed on the box body (1), the stepping motor (801) is installed at one end of the mounting seat (802) and is connected with a driver of the stepping motor, two ends of the lead screw (803) are respectively installed at two ends of the mounting seat (802) in a rotatable mode, one end of the lead screw (803) is connected with an output shaft of the stepping motor (801) through a coupler, the guide rail (805) is fixedly installed at the bottom of the mounting seat (802), and the sliding block (804) is in threaded fit on the lead screw (803) and is in sliding fit with the guide rail (805).

4. The practical training box for the small PLC control system according to claim 1, characterized in that a buzzer (6) is mounted on the box door (2).

5. The practical training box for the small PLC control system according to claim 1, characterized in that an emergency stop button (5) is installed on the box door (2).

6. The practical training box for the small PLC control system according to claim 1, characterized in that a knob switch (7) is installed on the box door (2).

7. The practical training box for the small PLC control system according to claim 1, wherein an indicator lamp (4) is mounted on the box door (2).

8. The practical training box for the small PLC control system according to claim 1, wherein the wire slot (19) comprises a U-shaped groove (1901) and a cover plate (1902), and the cover plate (1902) is buckled on the U-shaped groove (1901) in a snap-fit manner.

9. The practical training box for the small PLC control system according to claim 8, wherein the bottom of the U-shaped groove (1901) is fixed on a mounting plate (21), and a plurality of strip-shaped holes (1903) are formed in the length direction of the U-shaped groove (1901) and located on two sides of the U-shaped groove (1901) at intervals.

10. The practical training box for the small PLC control system according to any one of claims 1-9, characterized in that a handle (18) is fixedly arranged on one side of the box body (1).