CN107085411B - Mechanical safety protection control system experiment table - Google Patents
Mechanical safety protection control system experiment table Download PDFInfo
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- CN107085411B CN107085411B CN201710364602.9A CN201710364602A CN107085411B CN 107085411 B CN107085411 B CN 107085411B CN 201710364602 A CN201710364602 A CN 201710364602A CN 107085411 B CN107085411 B CN 107085411B
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- safety
- light curtain
- synchronous belt
- control system
- workpiece
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/406—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by monitoring or safety
- G05B19/4065—Monitoring tool breakage, life or condition
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/37—Measurements
- G05B2219/37616—Use same monitoring tools to monitor tool and workpiece
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- Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Auxiliary Devices For Machine Tools (AREA)
- Manipulator (AREA)
Abstract
The invention discloses a mechanical safety protection control system experiment table, which comprises a workpiece carrying system, a safety protection control system and a workbench, wherein the workpiece carrying system comprises a first support, a second support and a third support; the workpiece carrying system comprises a driving motor, a limiting sensor, a workpiece, a synchronous belt, a sliding table and a robot control box; the synchronous belt is arranged on the workbench; the synchronous belt drives the workpiece to do linear motion; the driving motor is arranged at one end of the synchronous belt; the sliding table is arranged at the upper end of the synchronous belt, and the workpiece is arranged on the sliding table; the limit sensors are arranged at two ends of the synchronous belt; the safety input equipment comprises a safety light curtain and the like, wherein the safety light curtain is arranged in the middle of the conveyor belt, and the detection direction of the safety light curtain is vertical to the movement direction of the conveyor belt; the safety output equipment comprises a multilayer warning lamp, and the multilayer warning lamp is connected with the safety relay; the safety control equipment comprises a safety controller, a safety relay, a computer and the like; the safety controller is connected with the computer; the inventive laboratory bench has good changeability.
Description
Technical Field
The invention belongs to the field of experimental equipment, and particularly relates to a mechanical safety protection control system experiment table.
Background
With the progress of science and technology, mechanization, automation and informatization have become the main production modes in the industrial field. However, with the heavy use of machinery, the problem of mechanical safety is becoming more and more prominent and severe due to unsafe behaviors of people and unsafe states of machinery. Meanwhile, the mechanical safety problem also becomes an important basis for setting a technical trade barrier in international trade in developed countries. Experience and practice in developed countries have shown that the design and development stage of mechanical products retains the concept of intrinsic safety design, and is the most effective means for improving the safety level of products, reducing the safety cost and ensuring the safety of users.
The safety design of the product is carried out according to strict standards in the design stage, and a safety protection control system is synchronously designed for the product with a larger risk source, so that the safety of operators can be ensured even if the operators make mistakes or have mechanical faults. Currently, the personnel who can design the mechanical safety protection control system are mostly obtained by practice in the working practice. As a main place for higher talents culture, colleges and universities become the mastery of enterprises for designing and researching products, and college students neglect the method for designing the safety of mechanical products when learning the design of the mechanical products and do not have the consciousness of designing the mechanical safety; meanwhile, some primary research and development personnel also need to have a safe design concept when designing products; although some safety devices such as safety controllers and safety light curtains are widely used in the field of device manufacturing, these devices can only meet specific production requirements, and at present, there is no laboratory bench which can be arbitrarily combined and adjusted to be specially used for safety training.
And the existing safety controller is generally arranged in a control cabinet, each safety component is connected to an input port and an output port of the safety controller, and the wiring mode of the safety protection control system with a fixed function is fixed. If the function of the safety protection control system needs to be changed, and safety components need to be increased or decreased, the wiring mode needs to be changed, and for the safety protection control system which finishes the wiring work, changing the wiring mode again takes time and labor, and easily causes errors.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the mechanical safety protection control system experiment table, so that students or primary research and development personnel can master the design method of the mechanical safety protection control system through the operation training of the experiment table, and the mechanical safety protection control system experiment table has the consciousness of safety protection problems.
The technical solution for realizing the purpose of the invention is as follows:
a mechanical safety protection control system experiment table comprises a workpiece carrying system, a safety protection control system and a workbench;
the workpiece carrying system comprises a driving motor, a limiting sensor, a workpiece, a synchronous belt, a sliding table and a robot control box; the synchronous belt is arranged on the workbench; the synchronous belt drives the workpiece to do linear motion; the driving motor is arranged at one end of the synchronous belt; the sliding table is arranged at the upper end of the synchronous belt, and the workpiece is arranged on the sliding table; the limit sensors are arranged at two ends of the synchronous belt;
the safety protection control system comprises safety input equipment, safety control equipment and safety output equipment;
the safety input equipment comprises a safety light curtain, the safety light curtain is arranged in the middle of the conveyor belt, and the detection direction of the safety light curtain is perpendicular to the movement direction of the conveyor belt;
the safety output equipment comprises a multilayer warning lamp, and the multilayer warning lamp is connected with the safety relay;
the safety control equipment comprises a safety controller, a safety relay and a computer; the safety controller is connected with the computer, and the safety relay is connected with the computer.
Compared with the prior art, the invention has the following remarkable advantages:
(1) good convertibility: according to the invention, different protection control systems can be conveniently and rapidly constructed through the wiring mode of the junction box of the safety controller, rapid construction and transformation of the safety protection system are realized, and good convertibility is achieved;
(2) the related safety system is more comprehensive: the inventive safety protection control system experiment table can enable students or primary research and development personnel to more comprehensively master the design method of the mechanical safety protection control system by combining various mechanical motions such as a workpiece handling system, the safety protection control system, an electrical control system and the like with the safety protection system.
The present invention is described in further detail below with reference to the attached drawing figures.
Drawings
FIG. 1 is a schematic structural diagram of a laboratory bench according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a workpiece handling system.
Detailed Description
For the purpose of illustrating the technical solutions and technical objects of the present invention, the present invention will be further described with reference to the accompanying drawings and specific embodiments.
With reference to fig. 1-2, the mechanical safety protection control system experiment table of the present invention comprises a workpiece handling system, a safety protection control system, an electrical control system, a workbench 16 and a junction box 9;
the workpiece carrying system comprises a grabbing robot 1, a driving motor 2, a limiting sensor 5, a workpiece 6, a synchronous belt 7, a sliding table 8 and a robot control box 17; the grabbing robot 1, the synchronous belt 7 and the robot control box 17 are all arranged on the workbench 16; the robot control box 17 is connected with the grabbing robot 1 and used for controlling the movement of the robot, and the synchronous belt 7 is used for driving the workpiece 6 to move linearly; the driving motor 2 is arranged at one end of the synchronous belt 7 and used for driving the synchronous belt 7 to run; the sliding table 8 is arranged at the upper end of the synchronous belt 7, and a workpiece is arranged on the sliding table 8; the limiting sensors 5 are arranged at two ends of the synchronous belt 7 and used for detecting the movement positions of the workpiece 6 at two ends of the synchronous belt 7; when the workpiece 6 moves from one end (starting end) to the other end (terminal end) of the synchronous belt 7, the workpiece 6 is positioned at the lower end of the grabbing arm of the grabbing robot 1;
the mechanical safety protection control system experiment table is further provided with a safety fence 26, wherein the safety fence 26 is of a rectangular frame structure and is provided with a front door, a rear door and a top door which are opposite to the front side of an operator; the grabbing robot 1 is positioned inside the safety fence 26, one end of the synchronous belt 7 is positioned inside the safety fence 26, and the other end of the synchronous belt 7 is positioned outside the safety fence 26, so that an operator can convey workpieces from the outside of the safety fence 26 to the inside of the safety fence 26 through the synchronous belt 7;
the safety protection control system comprises safety input equipment, safety control equipment and safety output equipment;
the safety input device is mainly used for detecting whether a person approaches a hazard source and comprises a safety light curtain 3, an emergency stop button 13, a reset button 12, a magnetic induction interlocking switch 23, a safety interlocking switch 24 and an unlocking button 25; the safety light curtain 3 is arranged in the middle of the conveyor belt 7, and the detection direction of the safety light curtain 3 is vertical to the movement direction of the conveyor belt 7;
preferably, 3 bottom both sides of safety light curtain are equipped with a pair of both sides light curtain intelligent shielding ware 4 respectively, the detection direction of two pairs of light curtain intelligent shielding ware 4 forms the cross, the crossing position is located the crossing department of safety light curtain 3 and hold-in range 7, when work piece 6 moves to 3 positions of safety light curtain, according to the procedure that safety protection control system set for, when passing through light curtain 3 to the specific object of 6 sizes of work piece, can not trigger safety light curtain 3 and lead to 7 stop motions of hold-in range, and also can not lead to the fact the influence to other positions of safety light curtain 3, but not when the specific object of 6 sizes of work piece passes through safety light curtain 3, can trigger safety light curtain 3 and lead to 7 stop motions of hold-in range.
The emergency stop button 13 is used for stopping the whole system in emergency, and the reset button 12 is used for restoring the system to an initial working state after the system stops working; the emergency stop button 13 and the reset button 12 are integrated on the button box 10.
The magnetic induction sensing interlocking switch 22 is installed at the top end of the safety fence 26 and is used for detecting the opening state of the top door of the safety fence 26; the safety interlock switch 24 is installed at the rear end of the safety fence 26 and is used for detecting the opening state of the rear door of the safety fence 26; the unlocking button 25 is arranged at the rear end of the safety fence 26, and when the rear door on the safety fence 26 is in a closed state, the unlocking button 25 is required to be pressed to open the rear door;
the safety output equipment is used for outputting an alarm when the safety input equipment detects that a danger source exists; the safety output equipment comprises a multilayer warning lamp 15, and the multilayer warning lamp 15 is connected with a safety relay 18; when a human hand or a foreign object triggers the safety light curtain 3, or a top door or a rear door of the safety fence 26 is in an open state, the safety interlocking switch 24 is triggered, the safety controller 20 outputs a signal to the safety relay 18, the safety relay 18 controls the starting of the red warning lamp of the multilayer warning lamp 15, and meanwhile, an alarm sound is sounded;
the safety control equipment is used for reading and calculating the detection information of the safety input equipment and controlling the safety output equipment; the safety control device comprises a safety controller 20, a safety relay 18 and a computer 14; the safety relay 18 is able to detect faults in the relay internal and external circuits and to take regular action in the event of a fault. It has forced guiding contact structure and can ensure safety even when contact fusing occurs. The safety controller 20 and the safety relay 18 are arranged in a main control cabinet 22 and are connected with the computer 14.
The electric control system comprises a power supply main switch 19, a power supply indicator lamp 21 and a main control cabinet 22; the power supply main switch 19 and the power supply indicating lamp 21 are located on the main control cabinet 22 and are connected with the main control cabinet 22, the power on/off of the main control cabinet 22 is conducted through the power on/off television line of the power supply main switch 19, and the power supply indicating lamp 21 is used for displaying the power on/off condition of the main control cabinet 22.
In some embodiments, the experiment table can also be connected with an external electrical control system to realize on-off control of the experiment table.
The safety light curtain 3, the magnetic induction interlocking switch 23, the safety interlocking switch 24, the unlocking button 25, the emergency stop button 13 and the reset button 12 are all connected with the junction box 9 through plug-and-pull connecting wires; the junction box 9 is arranged on the workbench 16, the junction box 9 is provided with an input/output interface which is the same as the safety control 19, and the junction box 9 and the safety control 19 are connected in series by corresponding interfaces, so that the safety protection system can be quickly constructed and changed, and an operator can conveniently change or increase or decrease the device according to the requirement.
When the grabbing robot works, the power main switch 19 is turned on, the power indicator lamp 21 is turned on, the indicator lamp on the reset button 12 flickers, the grabbing robot 1 is started, and the reset button 12 is pressed. The indicator light of the reset button 12 is turned off, all products are in a normal state, the green light of the multilayer warning light 15 is on, and the experiment table can be normally used. The workpiece 6 is placed on the sliding table 8, and the sliding table 8 is in an initial working position. The start button 11 is pressed, and the workpiece 6 is transported and moved by the timing belt 7 to the position below the gripping arm of the gripping robot 1. Due to the existence of the light curtain intelligent shielding device 4, the work piece handling system can not stop working because the work piece 6 passes through the light curtain 3 in the transportation process of the work piece 6. The grabbing robot 1 grabs the workpiece 6 according to the set action cycle and carries the workpiece to a workbench 16 on the side surface of the grabbing robot 1; the sliding table 8 automatically returns to the initial working position after the grabbing robot 1 grabs the workpiece 6, and the next workpiece carrying process is carried out. When the staff passed safety light curtain 3, work piece handling system stopped work at once, and multilayer warning light 15 red light lights, and multilayer warning light 15's alarm sound simultaneously rings. The reset button 12 is pressed, and the workpiece handling system is restored to the initial position; similarly, the emergency stop button 13, the magnetic induction interlocking switch 23 and the safety interlocking switch 24 can trigger the safety protection control system to control the work piece conveying system to stop working.
According to the mechanical safety protection control system experiment table, by combining various mechanical motions such as the workpiece handling system, the safety protection control system, the electrical control system and the like with the safety protection system, students or primary research and development personnel can master the design method of the mechanical safety protection control system more comprehensively. Because the invention belongs to experimental equipment and is provided with the junction box, the scheme of the invention can be adopted to carry out combination and increase and decrease adjustment on the connection and the position of each system.
Claims (2)
1. A mechanical safety protection control system experiment table is characterized by comprising a workpiece carrying system, a safety protection control system, a workbench (16), an electrical control system, a safety fence (26) and a junction box (9);
the workpiece carrying system comprises a grabbing robot (1), a driving motor (2), a limiting sensor (5), a workpiece (6), a synchronous belt (7), a sliding table (8) and a robot control box (17); the synchronous belt (7) is arranged on the workbench (16); the synchronous belt (7) drives the workpiece (6) to do linear motion; the driving motor (2) is arranged at one end of the synchronous belt (7); the sliding table (8) is arranged at the upper end of the synchronous belt (7), and a workpiece is arranged on the sliding table (8); the limit sensors (5) are arranged at two ends of the synchronous belt (7); the grabbing robot (1) and the robot control box (17) are both arranged on the workbench (16), and the grabbing arm of the grabbing robot (1) is positioned on the upper side of the terminal of the synchronous belt (7); the grabbing robot (1) is connected with a robot control box (17) and is also connected with a safety relay (18); the grabbing robot (1) is positioned inside a safety fence (26), one end of the synchronous belt (7) is positioned inside the safety fence (26), and the other end of the synchronous belt is positioned outside the safety fence (26);
the safety protection control system comprises safety input equipment, safety control equipment and safety output equipment;
the safety input equipment comprises a safety light curtain (3), a magnetic induction interlocking switch (23), a safety interlocking switch (24), an unlocking button (25), an emergency stop button (13) and a reset button (12), wherein the safety light curtain (3) is arranged in the middle of the conveyor belt (7), and the detection direction of the safety light curtain (3) is perpendicular to the movement direction of the conveyor belt (7); the magnetic induction sensing interlocking switch (23) is arranged at the top end of a safety fence (26), the safety interlocking switch (24) is arranged at the rear end of the safety fence (26), and the unlocking button (25) is arranged on the safety fence (26); the emergency stop button (13) and the reset button (12) are integrated on the button box (10);
the safety output equipment comprises a multilayer warning lamp (15), and the multilayer warning lamp (15) is connected with a safety relay (18);
the safety control device comprises a safety controller (20), a safety relay (18) and a computer (14); the safety controller (20) is connected with the computer (14), and the safety relay (18) is connected with the safety controller (20);
the electric control system comprises a power supply main switch (19), a power supply indicator lamp (21) and a main control cabinet (22); the power supply main switch (19) and the power supply indicator lamp (21) are positioned on the main control cabinet (22) and are connected with the main control cabinet (22);
the terminal box (9) is provided with an input/output interface which is the same as that of the safety controller (20), and the terminal box (9) is connected with a corresponding interface of the safety controller (20) in series; the safety light curtain (3), the magnetic induction interlocking switch (23), the safety interlocking switch (24), the unlocking button (25), the emergency stop button (13) and the reset button (12) are connected with the junction box (9) through plug-and-pull connecting wires; the junction box (9) is connected with the corresponding interface of the safety controller (20) in series; the multilayer warning lamp (15) is connected with the safety relay (18);
safety light curtain (3) bottom both sides are equipped with a pair of light curtain intelligent shielding ware (4) respectively, the detection direction of two pairs of light curtain intelligent shielding ware (4) forms the cross, the crossing position is located the crossing department of safety light curtain (3) and hold-in range (7), when work piece (6) move to safety light curtain (3) position, when passing through light curtain (3) to work piece (6) size of a dimension's object, can not trigger safety light curtain (3) and lead to hold-in range (7) stop motion, when not work piece (6) size of a dimension's object passes through safety light curtain (3), trigger safety light curtain (3) and lead to hold-in range (7) stop motion.
2. The mechanical safety protection control system experiment table according to claim 1, further comprising an electrical control system, wherein the electrical control system comprises a power main switch (19), a power indicator lamp (21) and a main control cabinet (22); the power supply main switch (19) and the power supply indicator lamp (21) are positioned on the main control cabinet (22) and are connected with the main control cabinet (22).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710364602.9A CN107085411B (en) | 2017-05-22 | 2017-05-22 | Mechanical safety protection control system experiment table |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710364602.9A CN107085411B (en) | 2017-05-22 | 2017-05-22 | Mechanical safety protection control system experiment table |
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| CN107085411A CN107085411A (en) | 2017-08-22 |
| CN107085411B true CN107085411B (en) | 2020-06-19 |
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| CN201710364602.9A Active CN107085411B (en) | 2017-05-22 | 2017-05-22 | Mechanical safety protection control system experiment table |
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| CN108032596B (en) * | 2017-12-08 | 2021-01-01 | 青岛多代智能科技有限公司 | Full-automatic feeding and discharging machine for needle-free multi-cloth-piece fusion laminating process |
| CN108465233A (en) * | 2018-05-28 | 2018-08-31 | 珠海格力智能装备有限公司 | Man-machine playing platform and man-machine playing equipment |
| CN108608088B (en) * | 2018-07-13 | 2024-06-21 | 广西广协智能科技有限公司 | Refrigerator-freezer Wen Xigao cabinet |
| CN110108432A (en) * | 2019-06-14 | 2019-08-09 | 北京理工大学 | A kind of prosthetic hand vibration simulation experiment porch |
| CN114179128B (en) * | 2021-12-28 | 2023-12-01 | 广东韶钢松山股份有限公司 | Safety protection system and metallurgical processing equipment |
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