Shunt processing circuit system
By designing the shunt processing circuit system, the automated control of the drilling rig and grooved machine is realized, which solves the problems of unstable product quality and inefficiency caused by traditional manual operations, and improves the degree of automation and product consistency of shunt processing.
Patent Information
- Application Number
- CN202521199606.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-12
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2035-06-12
AI Technical Summary
Traditional shunt processing equipment relies on manual operation, resulting in unstable product quality, large batch differences, and inefficient efficiency.
A diverter processing circuit system is designed, including automatic control circuits for drilling rigs, grooved machines and water pumps. Through sequential control circuits, the up and down movement of drilling rigs and grooved machines and the start and stop of water pumps are realized to ensure the consistency and reliability of the processing process.
It realizes automatic control of the processing of the shunt base, improves the consistency of product quality and production efficiency, reduces manual operation strength, and has overload protection function to ensure equipment safety.
Smart Images
Figure CN223124793U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to manufacturing equipment for electrical measurement devices, and particularly relates to a shunt processing circuit system. Background Art
[0002] A shunt is a precision current measurement component, which is widely used in industrial automation, power distribution, and measurement systems. The production quality of the shunt directly affects its measurement accuracy and service life, and the processing technology is a key link in the production of the shunt. The shunt base needs to be drilled at both ends for installing terminals and grooved around for heat dissipation. The accuracy and consistency of these processing procedures have an important impact on the performance and life of the shunt.
[0003] Traditional shunt processing equipment mostly adopts a manual operation mode. Operators need to manually control operations such as the downward and upward movement of the drilling machine and the operation of the grooving machine, and also need to manually control the cooling system. This operation mode not only has low work efficiency, but also causes unstable product quality due to human factors. The existing shunt processing system has the following problems: First, the operation process depends on manual control, and it is impossible to ensure that the processing time and depth of each shunt are exactly the same, resulting in large differences between product batches.
[0004] Therefore, it is necessary to develop a system that can automatically control the whole process of shunt processing, ensure the consistency of product quality, and improve production efficiency. Content of the Utility Model
[0005] The purpose of the utility model is to provide a shunt processing circuit system, which can automatically control the up and down movement of the drilling machine and the grooving machine, as well as the start and stop of the water pump, ensure the consistency and reliability of the shunt base processing process, improve production efficiency at the same time, and reduce the intensity of manual operation.
[0006] The above technical purpose of the utility model is achieved through the following technical solutions:
[0007] A shunt processing circuit system includes: three-phase power supplies L1, L2, and L3, which are connected to the system through the main circuit breaker QF; the system includes: a drill motor control circuit, a slotting machine motor control circuit, a water pump motor control circuit, and a sequence control circuit; among them, the drill motor control circuit includes a contactor KM1, a thermal relay FR1, and a drill motor M1; the slotting machine motor control circuit includes a contactor KM3, a thermal relay FR2, and a slotting machine motor M2; the water pump motor control circuit includes a contactor KM5, a thermal relay FR3, and a water pump motor M3; the sequence control circuit includes a control switch unit, a drill control unit, a slotting machine control unit, and a water pump control unit; the control switch unit is used to start and stop the entire system; the drill control unit is used to control the up and down movement of the drill to punch holes in the shunt base; the slotting machine control unit is used to control the up and down movement of the slotting machine to slot the shunt base; the water pump control unit is used to control the start of the water pump to cool the processing process.
[0008] The present utility model is further arranged as: the control switch unit includes: a push-button switch SB2 and a main control contactor KA; the push-button switch SB2 is used to start the system; the main control contactor KA has normally open contacts 1-2 / 5-6 / 21-22.
[0009] The present utility model is further arranged as: the drill control unit includes: an on-delay time relay KT1, an on-delay time relay KT2, a contactor KM1, and a contactor KM2; the coil of the on-delay time relay KT1 is connected to the normally open contact 5-6 of the main control contactor KA, and the on-delay time relay KT1 controls the coil of the contactor KM1 to control the downward movement of the drill motor M1 for punching operations; the coil of the on-delay time relay KT2 is connected to the normally open delay contact 9-10 of the on-delay time relay KT1, and the on-delay time relay KT2 has a normally open contact 11-12 to control the coil of the contactor KM2 to control the upward movement and reset of the drill motor M1.
[0010] The present utility model is further configured as follows: The grooving machine control unit includes: a power-on delay time relay KT3, a power-on delay time relay KT4, a contactor KM3, and a contactor KM4; The coil of the power-on delay time relay KT3 is connected to the normally open delay contact 13-14 of the power-on delay time relay KT2. The power-on delay time relay KT3 has a normally open contact 15-16 to control the coil of the contactor KM3, which is used to control the downward movement of the grooving machine motor M2 for grooving operation; The coil of the power-on delay time relay KT4 is connected to the normally open delay contact 17-18 of the power-on delay time relay KT3. The power-on delay time relay KT4 has a normally open contact 19-20 to control the coil of the contactor KM4, which is used to control the upward movement of the grooving machine motor M2 to reset.
[0011] The present utility model is further configured as follows: The water pump control unit includes a contactor KM5; The coil of the contactor KM5 is connected to the normally open contact 21-22 of the main control contactor KA, which is used to control the operation of the water pump motor M3 to provide coolant for the processing of the drilling machine and the grooving machine.
[0012] The present utility model is further configured as follows: The normally closed overload contact of the thermal relay FR1 is connected in series in the control circuit of the drilling machine motor M1. The normally closed overload contact of the thermal relay FR2 is connected in series in the control circuit of the grooving machine motor M2. The normally closed overload contact of the thermal relay FR3 is connected in series in the control circuit of the water pump motor M3, which is used to monitor the motor current and disconnect the circuit in case of overload, playing an overload protection role.
[0013] The present utility model is further configured as follows: The power-on delay time relay KT1 and the power-on delay time relay KT2 are provided with adjustable timers, which are used to adjust the downward and upward movement duration of the drilling machine motor M1 according to the thickness and hole diameter requirements of different specifications of the shunt base.
[0014] The present utility model is further configured as follows: The power-on delay time relay KT3 and the power-on delay time relay KT4 are provided with adjustable timers, which are used to adjust the downward and upward movement duration of the grooving machine motor M2 according to the thickness and groove depth requirements of different specifications of the shunt base.
[0015] In summary, the present utility model has the following beneficial effects:
[0016] 1. Automatic control: The system realizes the full-automatic control of the drill moving down for drilling, moving up for resetting, the grooving machine moving down for grooving, moving up for resetting, and the water pump for cooling through the sequence control loop. Just by the operator pressing the start button SB2, a complete working cycle can be completed, greatly reducing the manual operation intensity and improving the work efficiency. Under the traditional manual control mode, the operator needs to control five actions respectively: the drill moving down, moving up, the grooving machine moving down, moving up, and the water pump starting and stopping. However, with this system, only one button operation is required to automatically complete all processes.
[0017] 2. Precise timing control: The system uses power-on delay time relays KT1, KT2, KT3, KT4 and their contacts to precisely control the action time and sequence of each process, ensuring consistent product quality at the bottom of each diverter. Compared with the traditional way of relying on the operator's experience to master the time, the consistency between product batches is significantly improved.
[0018] 3. Perfect cooling system: The water pump control unit is directly controlled by the normally open contacts 21-22 of the main control contactor KA, providing continuous and stable cooling effect during the whole processing, effectively preventing the diverter material from deforming or its performance from deteriorating due to overheating, and improving the product quality.
[0019] 4. Overload protection function: The system uses the overload normally closed contacts of thermal relays FR1, FR2, and FR3 to protect each motor against overload. When the motor current exceeds the rated value, the thermal relay automatically disconnects the circuit to prevent the motor from burning out due to overload, ensuring the safety of the equipment and the continuity of production. Description of the Drawings
[0020] Figure 1 It is the circuit diagram of the diverter processing circuit system of the present utility model. Detailed Embodiment
[0021] In the description of the present utility model, it should be understood that the terms such as center, longitudinal, transverse, length, width, thickness, upper, lower, front, rear, left, right, vertical, horizontal, top, bottom, inner, outer, clockwise, counterclockwise, etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.
[0022] In addition, the terms first and second are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with first and second may explicitly or implicitly include one or more of such features.
[0023] In the description of the present utility model, the meaning of "a plurality of" is two or more, unless otherwise specifically defined. In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0024] The present utility model will be further described in detail below with reference to the accompanying drawings.
[0025] As Figure 1 shown, the present utility model provides a shunt processing circuit system, which includes three-phase power supplies L1, L2, L3, neutral line N and protective earthing wire. The three-phase power supply is connected to the system through the main circuit breaker QF, which is used for the control and short-circuit protection of the system's total power supply. The system mainly consists of four parts: the drilling machine motor control circuit, the grooving machine motor control circuit, the water pump motor control circuit and the sequence control circuit.
[0026] The drilling machine motor control circuit includes contactor KM1, contactor KM2, thermal relay FR1 and drilling machine motor M1. The drilling machine motor M1 is a three-phase asynchronous motor, which is used to drive the drilling machine to move up and down to complete the drilling operation on the shunt base. The contactor KM1 is used to control the downward movement of the drilling machine motor M1, and its main contacts U1-V1-W1 are connected to the motor power supply line. The contactor KM2 is used to control the upward movement of the drilling machine motor M1, and its main contacts U1-V1-W1 are also connected to the motor power supply line, but the wiring sequence is different from that of the contactor KM1, so that the motor rotates in the reverse direction. The thermal relay FR1 is connected in series in the power supply circuit of the drilling machine motor, and its normally closed overload contact is disconnected when the motor is overloaded, which is used to monitor the motor current and disconnect the circuit in case of overload to protect the motor from damage.
[0027] The grooving machine motor control circuit includes contactor KM3, contactor KM4, thermal relay FR2 and grooving machine motor M2. The grooving machine motor M2 is a three-phase asynchronous motor, which is used to drive the grooving machine to move up and down to complete the grooving operation on the shunt base. The contactor KM3 is used to control the downward movement of the grooving machine motor M2, and its main contacts U1-V1-W1 control the forward rotation of the motor. The contactor KM4 is used to control the upward movement of the grooving machine motor M2, and its main contacts U1-V1-W1 control the reverse rotation of the motor. The normally closed overload contact of the thermal relay FR2 is used for the overload protection of the grooving machine motor M2.
[0028] The control circuit of the water pump motor includes contactor KM5, thermal relay FR3, and water pump motor M3. The water pump motor M3 is a three-phase asynchronous motor used to drive the water pump to supply coolant (water) for cooling the machining processes of the drilling machine and the grooving machine. The main contacts U1-V1-W1 of the contactor KM5 control the start and stop of the water pump motor M3, and the normally closed overload contact of the thermal relay FR3 provides the overload protection function.
[0029] The sequential control circuit is the core technical solution of this application, used to control the working sequence and timing of the entire shunt machining process, including four functional units: a control switch unit, a drilling machine control unit, a grooving machine control unit, and a water pump control unit.
[0030] The control switch unit includes an emergency control button SB1, a start button SB2, and a master control contactor KA. When the operator presses the start button SB2, the coil of the master control contactor KA is energized, and its normally open contacts 1-2 close. The normally open contacts 5-6 and 21-22 of the contactor KA close, starting the working process of the entire system.
[0031] The drilling machine control unit includes an on-delay time relay KT1 and an on-delay time relay KT2. When the master control contactor KA is turned on, its normally open contacts 5-6 close, and the coil of the on-delay time relay KT1 is energized and starts timing. The normally open contacts 7-8 of the on-delay time relay KT1 are in the closed state, the coil of the contactor KM1 is energized, and its main contacts U1-V1-W1 close, starting the drilling machine motor M1, and the drilling machine starts to move down for drilling operations. After the on-delay time relay KT1 finishes timing, its normally open delayed contacts 9-10 close, and its normally closed delayed contacts 7-8 open, and the relay KM1 loses power, and the drilling machine no longer moves down for drilling. The coil of the on-delay time relay KT2 is energized and starts timing. The normally open contacts 11-12 of the on-delay time relay KT2 are in the closed state, the coil of the contactor KM2 is energized, and its main contacts U1-V1-W1 close, and the drilling machine motor M1 runs in reverse, and the drilling machine moves up to reset.
[0032] The grooving machine control unit includes a power-on delay time relay KT3 and a power-on delay time relay KT4. When the power-on delay time relay KT2 finishes timing, its normally open delay contact 13-14 closes, the coil of the power-on delay time relay KT3 is energized, and timing starts. The normally open contact 15-16 of the power-on delay time relay KT3 is in the closed state, the coil of the contactor KM3 is energized, its main contacts U1-V1-W1 close, the grooving machine motor M2 starts, and the grooving machine starts to move down for grooving operation. After the power-on delay time relay KT3 finishes timing, its normally open delay contact 17-18 closes, the coil of the power-on delay time relay KT4 is energized, and timing starts. The normally open contact 19-20 of the power-on delay time relay KT4 is in the closed state, the coil of the contactor KM4 is energized, its main contacts U1-V1-W1 close, the grooving machine motor M2 runs in reverse, and the grooving machine moves up to reset.
[0033] The water pump control unit includes a contactor KM5. When the main control contactor KA is switched on, its normally open contact 21-22 closes, the coil of the contactor KM5 is energized, its main contacts U1-V1-W1 close, the water pump motor M3 starts, and provides coolant for the entire processing process. After the processing is completed, the normally closed delay contact 3-4 of the power-on delay relay KT4 opens, the main control contactor KA is switched off, and the motors M1, M2, and M3 stop working. When performing the next processing, repeat the above steps.
[0034] The working process of the entire system is as follows:
[0035] 1. Before starting work, ensure that the power connection is normal and the main circuit breaker QF is closed.
[0036] 2. The operator presses the emergency control button SB1, its normally open contact 1-2 closes, the main control contactor KA is switched on, forming self-locking, and the system starts to work. At the same time, the normally open contact 21-22 of the main control contactor KA closes, and the water pump motor M3 starts to provide coolant.
[0037] 3. The normally open contact 5-6 of the main control contactor KA closes, the power-on delay time relay KT1 is switched on, its contacts 7-8 are in the closed state, the coil of the contactor KM1 is energized, the main contacts close, and the drilling machine motor M1 moves down to drill the shunt base.
[0038] 4. After the power-on delay time relay KT1 finishes timing, its normally open delay contact 9-10 closes, the power-on delay time relay KT2 is switched on, its normally open contact 11-12 closes, the coil of the contactor KM2 is energized, the main contacts close, the drilling machine motor M1 runs in reverse, and the drilling machine moves up to reset.
[0039] 5. After the power-on delay time relay KT2 finishes timing, its normally open delay contact 13-14 closes, the power-on delay time relay KT3 is energized, its normally closed contact 15-16 is in the closed state, the coil of the contactor KM3 is energized, the main contact closes, and the grooving machine motor M2 moves downward to perform grooving operation on the shunt base.
[0040] 6. After the power-on delay time relay KT3 finishes timing, its normally open delay contact 17-18 closes, the power-on delay time relay KT4 is energized, its normally open contact 19-20 closes, the coil of the contactor KM4 is energized, the main contact closes, and the grooving machine motor M2 runs in reverse, and the grooving machine moves upward to reset.
[0041] 7. After the power-on delay time relay KT4 finishes timing, a complete processing cycle ends. If it is necessary to continue processing the next workpiece, the operator can press the start button SB2 again, and the system will start the working cycle again.
[0042] The power-on delay time relays KT1, KT2, KT3, and KT4 are all equipped with adjustable timers. The operator can adjust the processing time and depth of the drilling machine and the grooving machine according to the processing requirements of shunt bases of different specifications, and flexibly adapt to the production requirements of different products.
[0043] The utility model precisely controls the timing and duration of each process through the power-on delay time relay and its contacts, realizing the automatic control of the shunt base processing process. Compared with the traditional manual control method, it improves the production efficiency and ensures the consistency of product quality.
[0044] The utility model is particularly suitable for small and medium-sized shunt production enterprises. The system has a simple structure, low cost, and is easy to maintain, while meeting the basic requirements of automatic production. For the processing of shunt bases of different specifications, only the set time of the power-on delay time relay needs to be adjusted to flexibly adapt to the process requirements of different products, and it has good industrial application prospects.
[0045] This specific embodiment is only an explanation of the utility model and does not limit the utility model. Those skilled in the art can make modifications to this embodiment without creative contributions according to needs after reading this specification, but as long as it is within the scope of the claims of the utility model, it is protected by the patent law.
Claims
1. A shunt processing circuit system, characterized in that Including: Three-phase power supplies L1, L2, and L3, which are connected to the system through the main circuit breaker QF; the system includes: a drill motor control circuit, a grooving machine motor control circuit, a water pump motor control circuit, and a sequence control circuit; among them, the drill motor control circuit includes a contactor KM1, a thermal relay FR1, and a drill motor M1; the grooving machine motor control circuit includes a contactor KM3, a thermal relay FR2, and a grooving machine motor M2; the water pump motor control circuit includes a contactor KM5, a thermal relay FR3, and a water pump motor M3; the sequence control circuit includes a control switch unit, a drill control unit, a grooving machine control unit, and a water pump control unit; the control switch unit is used to start and stop the entire system; the drill control unit is used to control the up and down movement of the drill to drill holes in the diverter base; the grooving machine control unit is used to control the up and down movement of the grooving machine to groove the diverter base; the water pump control unit is used to control the start of the water pump to cool the processing process.
2. The shunt processing circuit system according to claim 1, characterized in that: The control switch unit includes: a push-button switch SB2 and a master control contactor KA; the push-button switch SB2 is used to start the system; the master control contactor KA has normally open contacts 1-2 / 5-6 / 21-22.
3. The shunt processing circuit system according to claim 2, wherein: The drill control unit includes: an on-delay time relay KT1, an on-delay time relay KT2, a contactor KM1, and a contactor KM2; the coil of the on-delay time relay KT1 is connected to the normally open contact 5-6 of the master control contactor KA, and the on-delay time relay KT1 controls the coil of the contactor KM1 to control the downward movement of the drill motor M1 for drilling operations; the coil of the on-delay time relay KT2 is connected to the normally open delay contact 9-10 of the on-delay time relay KT1, and the on-delay time relay KT2 has a normally open contact 11-12 to control the coil of the contactor KM2 to control the upward movement of the drill motor M1 for resetting.
4. The shunt processing circuit system according to claim 3, characterized in that: The grooving machine control unit includes: an on-delay time relay KT3, an on-delay time relay KT4, a contactor KM3, and a contactor KM4; the coil of the on-delay time relay KT3 is connected to the normally open delay contact 13-14 of the on-delay time relay KT2, and the on-delay time relay KT3 has a normally open contact 15-16 to control the coil of the contactor KM3 to control the downward movement of the grooving machine motor M2 for grooving operations; the coil of the on-delay time relay KT4 is connected to the normally open delay contact 17-18 of the on-delay time relay KT3, and the on-delay time relay KT4 has a normally open contact 19-20 to control the coil of the contactor KM4 to control the upward movement of the grooving machine motor M2 for resetting.
5. The shunt processing circuit system according to claim 4, wherein: The water pump control unit includes a contactor KM5; the coil of the contactor KM5 is connected to the normally open contact 21-22 of the master control contactor KA to control the operation of the water pump motor M3 to provide coolant for the processing of the drill and the grooving machine.
6. The shunt processing circuit system according to claim 1, characterized in that: The normally-closed overload contact of the thermal relay FR1 is connected in series in the control circuit of the drilling rig motor M1, the normally-closed overload contact of the thermal relay FR2 is connected in series in the control circuit of the slotting machine motor M2, and the normally-closed overload contact of the thermal relay FR3 is connected in series in the control circuit of the water pump motor M3, which is used to monitor the motor current and disconnect the circuit in case of overload, playing the role of overload protection.
7. The shunt processing circuit system according to claim 3, wherein: The power-on delay time relays KT1 and KT2 are equipped with adjustable timers, which are used to adjust the duration of the downward and upward movement of the drilling rig motor M1 according to the thickness and hole diameter requirements of different specifications of shunt bases.
8. The shunt processing circuit system according to claim 4, characterized in that: The power-on delay time relays KT3 and KT4 are equipped with adjustable timers, which are used to adjust the duration of the downward and upward movement of the slotting machine motor M2 according to the thickness and slot depth requirements of different specifications of shunt bases.