Control device based on PLC

Abstract

The utility model discloses a control device based on a PLC, and relates to a control device based on a PLC. Comprising a fixing shell, a positioning table is slidably connected into the top end of the fixing shell, lifting tables are slidably connected into the top end of the fixing shell and located at the two ends of the positioning table, and clamping plates are slidably connected to the tops of the lifting tables. Through cooperation of the fixing shell, the clamping mechanism and the adjusting mechanism, an object needing to be fixed can be placed at the top of the positioning table, the object at the top of the positioning table is clamped through the clamping mechanism to prevent shaking and displacement, and meanwhile the positioning table and the lifting table are driven to synchronously ascend and descend through work of the adjusting mechanism; and in the moving process, corresponding stroke limiting is carried out through a translation limiting stroke switch, a first height limiting stroke switch and a second height limiting stroke switch, and therefore the technical purpose that the control device can conveniently position the object is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic control equipment, in particular to a control device based on PLC. Background Art

[0002] Programmable Logic Controller (PLC) is a digital electronic device with a microprocessor. It is used for automatic control and can load control instructions into memory for storage and execution at any time. The programmable controller is modularized by internal CPU, instruction and data memory, input and output unit, power module, digital simulation and other units. The automatic control system refers to the use of some automatic control devices to automatically control certain key parameters in production, so that when they are affected by external interference (disturbance) and deviate from the normal state, they can be automatically adjusted and returned to the numerical range required by the process.

[0003] For example, the patent (CN20708U) discloses an electrical automation control device based on PLC, including a device body, a first cavity is provided inside the device body, a second cavity is provided at the top of the first cavity, a fan is provided inside the second cavity, the fan is connected to the device body through an air inlet, an air supply duct is also provided at the other end of the fan, a shunt pipe is provided at one end of the air supply duct, the shunt pipe is connected to the first cavity through an air outlet, and a temperature sensor is provided inside the first cavity. This electrical automation control device based on PLC has an intelligent blowing system through the automatic control device, so that the high temperature generated by the long-term operation of the electronic components inside the device body can be solved in time, so that the device body will not cause accidents due to the high temperature generated by the long-term operation of its internal electronic components; the temperature sensors are symmetrically distributed inside the first cavity so that the electronic components inside the first cavity can be monitored in time; the existing control device is not convenient for positioning objects when in use, so a control device based on PLC is designed to provide another technical solution to the above technical problems. Summary of the invention

[0004] The utility model provides a control device based on PLC, which places the object to be fixed on the top of the positioning platform, and clamps the object on the top of the positioning platform through a clamping mechanism to prevent shaking and displacement, and at the same time drives the positioning platform and the lifting platform to rise and fall synchronously through the operation of the adjustment mechanism, so as to stably clamp the object on the top of the positioning platform, and perform corresponding travel limits through the translation limit travel switch, the first height limit travel switch and the second height limit travel switch during movement. The technical problem that the control device is convenient for positioning the object is solved.

[0005] The utility model adopts the following technical solutions:

[0006] A control device based on PLC comprises a fixed shell, the top of the fixed shell is slidably connected to a positioning platform, the top of the fixed shell is slidably connected to a lifting platform at both ends of the positioning platform, the top of the lifting platform is slidably connected to a clamping plate, the fixed shell is slidably connected to a lifting positioning plate at the bottom of the lifting platform, the top of the lifting positioning plate is slidably connected to the lifting platform, the outer side of the top of the lifting positioning plate is slidably connected to the lifting platform, and a clamping mechanism for driving two lifting positioning plates to move in opposite directions is installed inside the fixed shell, and the clamping mechanism comprises a displacement driving rotating motor, a displacement worm, a displacement worm wheel, a displacement transmission shaft and a threaded segment, a displacement driving rotating motor is fixed inside the fixed shell, the output end of the displacement driving rotating motor is connected to a displacement worm, the top of the displacement worm is meshedly connected to the displacement worm wheel, a displacement transmission shaft is fixed inside the displacement worm wheel, and the displacement transmission shaft is rotatably connected to the fixed shell, threaded segments are provided at both ends of the outer side of the displacement transmission shaft, and the threaded rotation directions of the two threaded segments are opposite, and the outer side of the threaded segment is threadedly connected to the lifting positioning plate.

[0007] As a preferred implementation of the PLC-based control device provided by the utility model, translation limit travel switches are fixed at both ends of the top end inside the fixed shell and at positions corresponding to the lifting platform.

[0008] As a preferred embodiment of the PLC-based control device provided by the utility model, the interior of the clamping plate is slidably connected with a translation limit travel switch, and the outer side of the bottom of the translation limit travel switch is threadedly connected to the lifting platform.

[0009] As a preferred embodiment of the PLC-based control device provided by the utility model, a signal controller is also fixed inside the fixed shell, and the model of the signal controller is SC. The signal controller and the translation limit travel switch, and the signal controller and the displacement drive rotating motor are electrically connected through wires.

[0010] As a preferred embodiment of the PLC-based control device provided by the utility model, a synchronization plate is slidably connected to the interior of the fixed shell, the bottom of the positioning platform is fixed to the synchronization plate, the outer side of the lifting platform is slidably connected to the synchronization plate, and an adjusting mechanism for driving the synchronization plate to be lifted and lowered is installed inside the fixed shell. The adjusting mechanism includes a lifting drive rotating motor, an adjusting disk, a support column and a synchronization platform. A lifting drive rotating motor is fixed inside the fixed shell, and the lifting drive rotating motor is electrically connected to a signal controller through a wire, an adjusting disk is connected to the output end of the lifting drive rotating motor, a support column is fixed to the bottom of the adjusting disk away from the lifting drive rotating motor, the outer side of the support column is slidably connected to the synchronization platform, and the top of the synchronization platform is fixed to the synchronization plate.

[0011] As a preferred implementation of the PLC-based control device provided by the utility model, sliding blocks are fixed on both sides of the lifting platform, and the lifting platform is slidably connected to the synchronization plate through the sliding blocks.

[0012] As a preferred embodiment of the PLC-based control device provided by the utility model, a first height limit travel switch is fixed on both sides of the interior of the fixed shell and located on the top of the synchronization plate, and a second height limit travel switch is fixed on both sides of the interior of the fixed shell and located on the bottom of the synchronization plate, and the first height limit travel switch and the signal controller, as well as the second height limit travel switch and the signal controller are electrically connected through wires.

[0013] The utility model has the following beneficial effects:

[0014] The utility model provides a PLC-based control device, which can place an object to be fixed on the top of a positioning platform through the cooperation of a fixing shell, a clamping mechanism and an adjusting mechanism, and clamp the object on the top of the positioning platform through the clamping mechanism to prevent shaking and displacement, and at the same time, the positioning platform and the lifting platform are driven to rise and fall synchronously through the operation of the adjusting mechanism, so that the object on the top of the positioning platform can be stably clamped, and corresponding travel limits are performed through the translation limit travel switch, the first height limit travel switch and the second height limit travel switch during movement;

[0015] Through the cooperation of the lifting platform, the clamping plate and the lifting positioning plate, the object on the top of the positioning platform can be clamped and fixed through the reverse movement of the two lifting positioning plates and the cooperation of the lifting platform and the clamping plate;

[0016] Through the cooperation of the synchronous plate, the support column and the synchronous table, the synchronous table can be lifted and lowered by driving the positioning table and the lifting table to lift and lower at the same time through the synchronous plate, so that the object on the top of the positioning table can be firmly clamped and lifted. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the fixed shell of the utility model;

[0020] Figure 3 This is a structural schematic diagram of the lifting platform of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the clamping plate of the utility model;

[0022] Figure 5 It is a structural schematic diagram of the synchronization platform of the utility model.

[0023] In the figure: 1. fixed shell; 2. positioning table; 3. lifting table; 4. clamping plate; 5. translation limit travel switch; 6. first height limit travel switch; 7. second height limit travel switch; 8. sliding block; 9. lifting positioning plate; 10. synchronous plate; 11. displacement drive rotating motor; 12. displacement worm; 13. displacement worm wheel; 14. displacement transmission shaft; 15. threaded section; 16. lifting drive rotating motor; 17. adjusting disk; 18. support column; 19. synchronous table. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0025] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0026] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings. Embodiment 1

[0028] Reference Figure 1-Figure 4 , a control device based on PLC, including a fixed shell 1, the top of the fixed shell 1 is internally slidably connected to a positioning platform 2, so that an object can be placed on the top of the positioning platform 2, the top of the fixed shell 1 is internally slidably connected to a lifting platform 3 at both ends of the positioning platform 2, and the top of the fixed shell 1 is internally fixed with two translation limit travel switches 5 at both ends of the top and corresponding to the lifting platform 3, so that the lifting platform 3 can be lifted and slid and can also be translated and slid inside the fixed shell 1, the top of the lifting platform 3 is slidably connected to a clamping plate 4, so that the clamping plate 4 can only be detached by rising when it is located at the top of the lifting platform 3, the inside of the clamping plate 4 is internally slidably connected to a translation limit travel switch 5, and the outer side of the bottom of the translation limit travel switch 5 is threadedly connected to the lifting platform 3, so that the clamping plate 4 can be installed on the top of the lifting platform 3;

[0029] A lifting and positioning plate 9 is slidably connected to the bottom of the lifting platform 3 inside the fixed shell 1, and the outer side of the top of the lifting and positioning plate 9 is slidably connected to the lifting platform 3, so that the lifting platform 3 can slide up on the outer side of the top of the lifting and positioning plate 9, and at the same time, the translation of the lifting and positioning plate 9 can drive the lifting platform 3 to translate. A clamping mechanism for driving the two lifting and positioning plates 9 to move in opposite directions is installed inside the fixed shell 1. The clamping mechanism includes a displacement drive rotating motor 11, a displacement worm 12, a displacement worm wheel 13, a displacement transmission shaft 14 and a threaded segment 15. A displacement drive rotating motor 11 is fixed inside the fixed shell 1, and the output end of the displacement drive rotating motor 11 is connected to the displacement worm 12, and the top of the displacement worm 12 is meshedly connected to the displacement worm wheel 13. A displacement transmission shaft 14 is fixed inside the displacement worm wheel 13, and the displacement transmission shaft 14 is rotationally connected to the fixed shell 1, so that the rotation of the displacement transmission shaft 14 is more stable.

[0030] Threaded sections 15 are provided at both ends of the outer side of the displacement transmission shaft 14, and the threaded rotation directions of the two threaded sections 15 are opposite. The outer sides of the threaded sections 15 are threadedly connected to the lifting and positioning plates 9, so that the reverse rotation of the two threaded sections 15 drives the two lifting and positioning plates 9 to move in reverse. A signal controller is also fixed inside the fixed shell 1. The model of the signal controller is SC200. The signal controller and the translation limit travel switch 5, and the signal controller and the displacement drive rotating motor 11 are electrically connected through wires. After receiving the signal from the translation limit travel switch 5 or the displacement drive rotating motor 11, the displacement drive rotating motor 11 is controlled to stop working.

[0031] The use process of a PLC-based control device provided by the utility model is as follows: according to the size of the clamped object, the displacement driving rotating motor 11 is energized to drive the displacement worm 12 to rotate, and the rotation of the displacement worm 12 drives the displacement transmission shaft 14 to rotate through the meshing displacement worm wheel 13, and the rotation of the displacement transmission shaft 14 drives the two lifting and positioning plates 9 to move in opposite directions through two thread segments 15 with opposite thread rotation directions, so that the two lifting and positioning plates 9 move away from each other, and the movement of the lifting and positioning plates 9 drives the lifting platform 3 to move, and when the lifting platform 3 contacts the electric contact of the translation limit stroke switch 5, the two lifting platforms 3 move away from each other to reach the maximum distance, and the translation limit stroke switch 5 is released. Guan 5 gives a signal to the signal controller, so that the signal controller controls the displacement drive rotating motor 11 to stop rotating, and then after placing the object on the top of the positioning platform 2, the displacement drive rotating motor 11 is started to rotate in the opposite direction, so that the rotation of the displacement drive rotating motor 11 drives the displacement worm 12 to drive the meshing displacement worm wheel 13 to rotate in the opposite direction, and the rotation of the displacement worm wheel 13 drives the displacement transmission shaft 14 to rotate, and the displacement transmission shaft 14 drives the two lifting and positioning plates 9 to move closer to each other through two threaded sections 15 with opposite thread rotation directions, so that the movement of the lifting and positioning plates 9 drives the lifting platform 3 to slide, and the two lifting platforms 3 are close to clamp and fix the object on the top of the positioning platform 2. Embodiment 2

[0032] Reference Figure 2 and Figure 5 , a control device based on PLC, the interior of the fixed shell 1 is slidably connected with a synchronous plate 10, the bottom of the positioning platform 2 is fixed to the synchronous plate 10, so that the positioning platform 2 can be fixed on the top of the synchronous plate 10 and located between the two lifting platforms 3, the outer side of the lifting platform 3 is slidably connected to the synchronous plate 10, so that the lifting platform 3 can slide in translation inside the synchronous plate 10, and sliding blocks 8 are fixed on both sides of the lifting platform 3. The lifting platform 3 and the synchronous plate 10 are slidably connected through the sliding blocks 8, so that the lifting platform 3 can slide in translation inside the synchronous plate 10, but the lifting of the synchronous plate 10 can drive the lifting platform 3 to lift and lower, and the first height limit travel switch 6 is fixed on both sides of the interior of the fixed shell 1 and located at the top of the synchronous plate 10, and the second height limit travel switch 7 is fixed on both sides of the interior of the fixed shell 1 and located at the bottom of the synchronous plate 10, the first height limit travel switch 6 and the signal controller, and the second height limit travel switch 7 and the signal controller are electrically connected through wires, and then the lifting and lowering stroke of the synchronous plate 10 is limited by the first height limit travel switch 6 and the second height limit travel switch 7;

[0033] In this embodiment, the shape of the sliding block 8 is rectangular. In other embodiments, the shape of the sliding block 8 is circular, so that it is easier for the lifting platform 3 to lift and lower on the outside of the lifting positioning plate 9 while allowing the lifting platform 3 to translate and slide inside the synchronization plate 10.

[0034] An adjusting mechanism for driving the synchronous plate 10 to be lifted and lowered is installed inside the fixed shell 1, and the adjusting mechanism includes a lifting drive rotating motor 16, an adjusting disk 17, a supporting column 18 and a synchronous platform 19. A lifting drive rotating motor 16 is fixed inside the fixed shell 1, and the lifting drive rotating motor 16 is electrically connected to the signal controller through a wire, so that the lifting drive rotating motor 16 is located between the two lifting positioning plates 9, and the output end of the lifting drive rotating motor 16 is connected to the adjusting disk 17, and a supporting column 18 is fixed to the bottom of the adjusting disk 17 away from the lifting drive rotating motor 16. The bottom of the side, so that the supporting column 18 can be fixed at a position where the synchronous platform 19 deviates from the center of the circle, and the outer side of the supporting column 18 is slidably connected to the synchronous platform 19, so that the rotation of the adjusting disk 17 can drive the synchronous platform 19 to be lifted and lowered through the supporting column 18, and the top of the synchronous platform 19 is fixed to the synchronous plate 10, so that the lifting and lowering of the synchronous platform 19 drives the synchronous plate 10 to be lifted and lowered.

[0035] The use process of a PLC-based control device provided by the utility model is as follows: when it is necessary to adjust the height of the positioning platform 2, the lifting and driving rotating motor 16 is energized to drive the adjusting disk 17 to rotate, and the rotation of the adjusting disk 17 drives the supporting column 18 to rotate, and through the sliding connection between the supporting column 18 and the synchronous platform 19, the rotation of the adjusting disk 17 drives the synchronous platform 19 to lift and lower through the supporting column 18, and the lifting and lowering of the synchronous platform 19 drives the synchronous plate 10 to lift and lower, so that the lifting and lowering of the synchronous plate 10 drives the positioning platform 2 and the lifting platform 3 to lift and lower at the same time, and after the rising of the synchronous plate 10 contacts the electric contact of the first height limit stroke switch 6, the first height limit stroke switch 6 gives a signal to the signal controller, so that the signal controller controls the lifting and driving rotating motor 16 to stop working and stop rising, and when the descent of the synchronous plate 10 contacts the electric contact of the second height limit stroke switch 7, the synchronous plate 10 gives a signal to the signal controller, so that the signal controller controls the lifting and driving rotating motor 16 to stop working and stop descending.

[0036] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A control device based on PLC, characterized in that: The device comprises a fixed shell (1), the top of the fixed shell (1) is internally slidably connected to a positioning platform (2), the top of the fixed shell (1) is internally slidably connected to a lifting platform (3) at both ends of the positioning platform (2), the top of the lifting platform (3) is internally slidably connected to a clamping plate (4), the bottom of the lifting platform (3) is internally slidably connected to a lifting positioning plate (9), the top of the lifting positioning plate (9) is externally slidably connected to the lifting platform (3), a clamping mechanism for driving the two lifting positioning plates (9) to move in opposite directions is installed inside the fixed shell (1), the clamping mechanism comprises a displacement driving rotating motor (11), a displacement worm (12), a positioning A displacement worm wheel (13), a displacement transmission shaft (14) and a threaded section (15); a displacement driving rotating motor (11) is fixed inside the fixed housing (1); an output end of the displacement driving rotating motor (11) is connected to a displacement worm (12); the top of the displacement worm (12) is meshingly connected to a displacement worm wheel (13); a displacement transmission shaft (14) is fixed inside the displacement worm wheel (13); the displacement transmission shaft (14) is rotationally connected to the fixed housing (1); threaded sections (15) are provided at both ends of the outer side of the displacement transmission shaft (14); the threaded rotation directions of the two threaded sections (15) are opposite; and the outer side of the threaded section (15) is threadedly connected to a lifting positioning plate (9).

2. A PLC-based control device according to claim 1, characterized in that: Translation limit travel switches (5) are fixed at both ends of the top end of the fixed shell (1) and at positions corresponding to the lifting platform (3).

3. A PLC-based control device according to claim 1, characterized in that: The interior of the clamping plate (4) is slidably connected to a translation limit travel switch (5), and the outer side of the bottom of the translation limit travel switch (5) is threadedly connected to the lifting platform (3).

4. A PLC-based control device according to claim 2, characterized in that: A signal controller is also fixed inside the fixed shell (1), and the signal controller and the translation limit travel switch (5), and the signal controller and the displacement drive rotation motor (11) are electrically connected via wires.

5. A PLC-based control device according to claim 4, characterized in that: The interior of the fixed shell (1) is slidably connected to a synchronization plate (10), the bottom of the positioning platform (2) is fixed to the synchronization plate (10), the outer side of the lifting platform (3) is slidably connected to the synchronization plate (10), and an adjustment mechanism for driving the synchronization plate (10) to be lifted and lowered is installed inside the fixed shell (1), the adjustment mechanism comprises a lifting drive rotating motor (16), an adjustment disk (17), a support column (18) and a synchronization platform (19), the interior of the fixed shell (1) is fixed to a lifting drive rotating motor (16), and the lifting drive rotating motor (16) is electrically connected to a signal controller via a wire, the output end of the lifting drive rotating motor (16) is connected to the adjustment disk (17), the bottom of the adjustment disk (17) away from the lifting drive rotating motor (16) is fixed to a support column (18), the outer side of the support column (18) is slidably connected to the synchronization platform (19), and the top of the synchronization platform (19) is fixed to the synchronization plate (10).

6. A PLC-based control device according to claim 5, characterized in that: Sliding blocks (8) are fixed on both sides of the lifting platform (3), and the lifting platform (3) and the synchronous plate (10) are slidably connected via the sliding blocks (8).

7. A PLC-based control device according to claim 5, characterized in that: A first height limit travel switch (6) is fixed on both sides of the interior of the fixed shell (1) and located at the top of the synchronization plate (10), and a second height limit travel switch (7) is fixed on both sides of the interior of the fixed shell (1) and located at the bottom of the synchronization plate (10). The first height limit travel switch (6) and the signal controller, as well as the second height limit travel switch (7) and the signal controller are electrically connected via wires.

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