TWM247321U - Automatic safety control circuit for hole drilling machine - Google Patents

Description

M247321 V. Creation Instructions (l) < Technical Field of New Type > Manufacturing circuit, especially breaking its load condition, the hole machine is in the best state quality, lowering the tool drill, it is mainly the surface formation positioning, the tool feed , Then the motor control source for automatic operation of the motor is controlled by a switch SW which is connected with an electromagnet coil relay RLY, which is usually started by an electric drill at the electric rig's start and open contact RLYb; by applying it to the surface of the work piece of the electromagnet After being excited, the normally open holding relay RLY is excited to start the drilling operation. In this creation, it is about the automatic maintenance of the drilling machine. It refers to a method that can change the running motor of the main motor ^ and feedback to modify the feed motor. 'Speed' enables drilling and cutting operations while drilling, and can reach the control circuit to improve machining wear. < Previous technology > It is common to see that a casing provided with an electromagnet at the bottom supports the electromagnet and a preset electromagnet in the casing is adsorbed on the object to be processed to facilitate subsequent drilling operations, and its electric drill has a handle to rotate Manual operation, or motor. In the above-mentioned electric rig, the electromagnet and related circuits are more traditional than those shown in Figure 1. AC power is connected to the rectifier BD, and Mg is connected to the output side of the rectifier BD. One open contact RLYa is connected to the motor μ of the electric drilling rig, and the relay SLY is connected to the stop switch swc through the switch SWO. The switch SWO is provided in parallel with the above-mentioned relay αγ. The above-mentioned structure is usually used. The power supply voltage is rectified by the rectifier BD. The electromagnet is excited and attracted to be added. When the operator presses the start switch SW0, the relay rly points RLYa and RLYb are closed, the normally open contact RLYb is used for magnetization, and the normally open contact RLYa is used to turn the motor M on.

9209023.ptd page 6 M247321 V. Creation instructions (2) After drilling a few percent, press the stop switch SWC to interrupt the relay RLY's excitation anchor switch SW to stop the power supply to the coil and make the electric drill ’s electromagnetic wonderful. On the surface of the object to be processed, it is convenient to move the electric drill. However, the above circuit is only a structure that is self-maintaining and can be used for drilling during the drilling operation. The control of the automatic speed adjustment of the advance and retreat knife has gradually become difficult to meet the increasingly complex application requirements and operating forms. ^ There is a patent of the Republic of China Patent Bulletin No. 158206 (Application No. 79206722 'Control Device for UI-equipped Drilling Machines with Magnetic Base') This method uses a comparator and a logic gate to change the voltage during each different drilling operation, and the output between the comparator and the logic is not the same ^ and reached = the potential is controlled by the control device to start drilling and perforate. Various actions at the middle or the end of the perforation to return to the initial state; however, the above-mentioned circuit structure and its operation method are extremely complicated, which not only has high production costs but also The effectiveness is effective and it is not easy to maintain. It is necessary to improve it. There are some disadvantages in the drilling device with an electromagnetic base. The creator researched and improved the defects based on these shortcomings. ; New content > The purpose of this creation is to provide an automatic control circuit for a drilling machine, which is mainly a microprocessor that controls the main motor operation through a first relay, and advances and retreats with a forward and backward = control circuit via-a second relay When the motor is running and the drilling operation starts, the microprocessor instructs the first and second relays to operate separately; when the first relay is activated, the first relay contact turns on the power of the main scale hole, so that the main horse 9902223.ptd page 7 M247321 5 3. Creation description (3) Da started to drive the drill, and when the second relay was activated, the contact of the second relay was located in the forward rotation position, so that the forward and backward cutter motor was rotated forward to drive the main motor and the drill downward. In the process of drilling operation, the microprocessor can detect the current flowing through the main motor at any time through a main motor control mechanism. If the current is too large (the drill bit is overloaded), the advance and retreat control circuit can use a preset TRIAC to turn on and correct the speed of the advance and retreat motor. By reducing the feed speed, the speed can be reduced. The load of the main motor and drill bit can improve the processing quality and reduce the wear of tools and equipment. This is the main purpose of this creation. According to the automatic control circuit of this drilling machine, it can be used as a bridge rectifier to connect AC power An electromagnet is introduced after rectification, so that the electromagnet is magnetic and can be adsorbed to a preset processing position. An electromagnet control circuit can be set between the bridge rectifier and the electromagnet to monitor the flow through the electromagnet. The current is used to confirm whether it is normal, and the electromagnet is in a normal state: in order to be able to carry out the various processes of the aforementioned drilling operations to ensure the work safety and processing quality, this is another purpose of the creation. As for the detailed structure, application principle, function and effect of this creation, the following descriptions based on the drawings can be fully understood: < Embodiment > As shown in Figure 1, it is a conventional electromagnet in an electric drill and The related motor < controller circuit, JL + I η # u, μ. ^ /, Wang Yao constitution and its lack, have been described previously, and will not be repeated here. The too f 2 picture is the circuit diagram of this creation. * The picture can be clearly seen. The main works include: electromagnet control circuit 1, advance and retreat knife control circuit

M247321 V. Creation instructions (4) 2. Main motor control, etc., including electromagnet 11, the processor I C1, the resistor R4 is connected to the resistor R4, and the electromagnet 1 1 U3 can sense the advance and retreat knife control motor RLY2, a dream control relay RLY2 to connect to the advance and retreat pole body TR1, can receive the induction coil T2, and connect the induction motor M2 speed processor I C1 to the contact of Y1 and an electrical appliance After RLY1 receives the main motor M1, the rectifier C2 and a voltage regulator T1 transformer IC1 are input between the 11 and U3 widgets. On one side, the fused element IC1 is used. Two sets of contacts are silicon-controlled two-state, and the body is advanced and retracted. The aforementioned microelectronics RL is the first inductive fluid controller 1C, capacitor C1, a variable voltage capacitor C1, a control mechanism 3, a rectifier voltage regulator circuit 4, and a micro-processing AC power supply. Via a bridge rectifier BD2, the rectifier electromagnet control circuit 1 is arranged between an electromagnet, which is connected in series by an electromagnet 11 by resistors R3, R4 and a photocoupler. The end of the bridge rectifier BD2 is connected to the light via a resistor R3. The other side of the coupling element U3 is connected to the micro place Device c1, the current generates a voltage drop at the two ends of the resistor R4, so that the current status of the photoelectromagnet 1 1 and the related accessory components of the microprocessor circuit 2 include a second relay diode TR1 and an induction coil Components such as T2, between clockwise contact CW, counterclockwise contact CCW and other two motors M2 and silicon controlled diode Tfn, and the advance and retreat knife control circuit 2 controls its grounding continuity-sensing one with the advance and retreat motor M2 pivot The rotating magnetic current is input to the knife advance control circuit 2 to detect this, and the input end of the knife advance control circuit 2 can be connected. The main motor control mechanism 3 is connected in series with the main motor M1 through a first relay resistor R1. Use this point to control the conduction of the main motor M1, use the resistor R1 current, and input the induced current value into the micro circuit. 4 is composed of a bridge rectifier BDi and two electrical components. When the bridge rectifier BD1 After the power source is rectified,

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M247321 V. Creative Instructions (5) The π-shaped filter control combined by C2 and supplying the advance and retreat respectively are "stupid to control the power, microprocessor IC1 circuit 2 and microprocessor knife control circuit 2 and the main Today, check out the electromagnet control circuit. $ Π should be connected to the main motor control mechanism 3 separately. ^ 0 The limit switch SW3 on the return path k is grounded. ^ T hi is the implementation flowchart of this creation. It can be known that the operation flow of each component is as follows: First, whether to connect to the "501" determination step. If it is negative N, it means that the power supply is turned on. If it is positive, it means that the main switch swi is turned on. At this time, the main power supply is supplied to the bridge rectifier. BD 2 and transformer D-type rectifier BD2 need to supply the electromagnet n after rectification. With a 502 judgment step of “No normal energization”, a voltage drop is generated through the two ends of the resistance R4 flowing through the electromagnet 11! | To drive the optical stealing element U3, the coupling U3 will sense the (current flowing through the electromagnet 丨 丨) value transmitter ici, and the microprocessor IC1 judges that the flowing electromagnet is within the normal range If it is negative N, it will return to the starting position. Y indicates that the electromagnet 11 is working normally and the drilling machine can be fixed and fixed. After the aforementioned main power is transformed by the transformer τ 丨, it is rectified by bridge 1 and After the redundant wave composed of the voltage stabilizing element U1 and the capacitors C1 and C2, can be controlled by a control switch SW2 to supply the power required by the circuit 2 and the microprocessor I c 1, respectively. ”5 0 3 judgment step, if it is negative n, then return to the beginning as positive Y, it means that the control switch SW2 has been turned on and off to control the power of the microprocessor IC1, and the microprocessor IC1 is turned on by the solenoid 丨 丨SW2 1 c 1 required 1, advance and retreat and through the second picture "Main power main (AC main power, 'is the current through the bridge electromagnet and from the light to the micro processing current if it is positive in the processing position rectifier The control switch of the BD filter is the position. If the circuit 2 and The normal

M247321 V. Creation instructions (6) In the case of “the first relay contact turns on the main horse step” and a “main motor Ml running” 50 5 steps, the head starts to rotate, and after an appropriate time, the “No. In the forward rotation position "step 506, the contact of the electric control device RLY2 by the advance and retreat knife is placed in the clockwise contact CW position to reach M2 operation" 50 7 steps to promote the main motor M1 to drive the industry 'in the drilling operation in progress ， Judging step 508 of “Master Mart” at any time, the microprocessor I (n accepts the resistance of the electric control mechanism 3 in (connected with the main motor M1) value 'to determine the current of the main motor M1, if it is positive The material of the workpiece is too hard, the drilling depth is too large, or the load of the drill (main motor Ml) is too large. At this time, the "silicon speed reduction" step 509 is reached by the forward and backward silicon control diode TR1. By reducing the feed speed And reduce) the load of the cutting amount, and then a "whether the drilling step is completed" is negative N, (the current of the limit switch SW3 is not touched), continue the previous step to continue drilling, and touch the limit switch SW3 to indicate that the drill has been reached Hole depth Below a set value, it means that ^ penetrate the drilling position and maintain a proper set time to repair ^, then make the second relay RLY2 act, advance ^ ^ ^ in the reverse position "step 511, the electric appliance RLY2 is made by the forward and backward knife ^ The contact is set at the counter-clockwise contact αν-"Step forward and backward knife motor M2 runs at full speed" 512 steps, power up "Step 504 The main motor M1 drives the second relay contact point 2 to drive the second step and then" forward and backward Whether the knife horse drills the hole to reach M1, whether the current overcurrent flows through the pressure drop at the two ends of the main motor 'indicates that the cutter control circuit 2 may control the advancing and retracting motor M2 to rotate the drill bit due to the head being too thick (main motor M1 works'' 51 0 If it is judged that Y is positive or flows through the resistor R1, (the electric hole flowing through the resistor R1 ', the drill will drive the second relay position on the edge of the burr and the cuttings of the second relay contact, and finally, to make the drill fast drop out

9209023.ptd M247321 V. Creation Instructions (7) As can be seen from the above, the drilling of this creation has an automatic control circuit that can be easily changed with the load. It does have the industrial secrets of utilization. ^ Efficacy, but the originality and progress of the above. It is not used to limit this innovation. It is only one of the preferred embodiments of this creation, and it is equivalent to all the equivalent gardens, that is, all patents that are modified and modified in accordance with this creation are within the scope of this creation patent. Covered. 9209023.ptd Page 12 M247321 Simple description of the diagram < Simplified illustration of the diagram > The first diagram is the circuit diagram of the control of the electromagnet and related motor in the electric drill. Figure 2 is the circuit diagram of this creation. Figure 3 is the implementation flowchart of this creation. < Refer to the number of components shown in the diagram > 1 ..... Electromagnet control circuit 11____Electromagnet 2 ..... Advance and retreat control circuit 3 ..... Main motor control mechanism 4 ..... Rectifier voltage regulator circuit 5 0 1 ... whether the main power supply is turned on 5 02 ... whether the electromagnet is normally energized 5 0 3 ... whether the control switch is turned on 5 0 4 ... the first relay contact turns on the main motor power supply 505 ... The main motor Ml is dedicated to the vehicle 5 0 6 ... The second relay contact is placed in the forward rotation position 50 7 ... The advance and retreat motor M2 is running 508 ...... Does the main motor Ml have an excessive current 509 ... The speed of the advance and retreat motor M2 is 5 1 0 ... whether the drilling operation is completed 511 .. The second relay contact is set to the reverse position 512 ... The advance and retreat motor M2 runs at full speed BD1, BD2 ... bridge rectifier

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Claims (1)

M247321 6. Scope of patent application 1. An automatic control circuit for a drilling machine, which includes at least: two main motor control mechanisms, which change the conduction state of the main motor power supply with a first relay and a microprocessor, and the main motor It can control the current value flowing through the main motor and input the current value to the microprocessor; 衧 Lai Deng's electric two electromagnet control circuit is connected in series to an electromagnet and the micro-processing can detect the flow of electromagnetic The current of iron is coupled to the microprocessor by the light-light and light-weighted current; the contact: a knife control circuit with a second relay, which enters the knife knife motor in two groups. And control to change its forward and reverse running direction, pivot and induction with an induction coil-it can be monitored with the speed of the advance and retreat motor mattress and change the advance and retreat movement control as needed; 4 :: ==; system =: iron low Loader of main motor and drill. ,,, and feed speed are reduced straight: ::: Automatic approval of the drilling machine described in item 1 of the profit range 4! Radar = Retraction control circuit and 1-control diode circuit, dagger grounding conduction state, so as to control k advance and retreat 3m profit range of the iron hole described in "Ge 2"; electricity :! The main motor control mechanism uses-resistance and main heart to make electric power '"across this resistance to generate a voltage drop to detect the flow = Alpha current of main motor 9209223. Ptd I Page 15 M247321 6. Value of patent application. 4 · If the scope of the patent application is' wherein the electromagnet rectifier, electricity flows through the electromagnet 5 · If the scope of the patent application is where the electromagnet controls the current, the current value of the electromagnet is used 6 · If the scope of the patent application is 'Where the micro switch is grounded and the hole is deep. 7 · If the scope of patent application is that the microprocessor switch is grounded and used. 8. According to the scope of patent application, where the microprocessor switch is grounded and used. 9 · If the scope of patent application is provided by the forward / backward path, the whole 1 or the control current uses the current value. The circuit of item 3 is a current flow of the first control device, the first control unit of the drill, and the automatic control circuit of the drilling machine according to item 2 of the second item using the drill item 3 and touching the item 4 through the drill bit and the bit 1 or the knife control current through the drill bit. A resistor is connected in series to the electromagnet and the bridge current flows through the resistor to generate a voltage drop. In order to detect the automatic control circuit of the drilling machine, a resistor is connected in series to the electromagnet and the bridge to generate a voltage drop across the resistor. The automatic control circuit of the drilling machine described in item 2 is detected by touching the limit switch on the head provided on the drill's travel path, and it is detected that the automatic control circuit of the drilling machine has been reached. The limit on the access # moves the limit switch to detect the drilling machine ’s automatic control circuit described in the drilling depth. A limit set on the drill bit moves the limit switch to move the limit switch to know that the drilling has been reached. The automatic control electric rectification and voltage stabilization of the drilling machine is based on the -bridge rectifier; the current IEH 9209023.ptd page 16 M247321 6. After the patent application source is rectified, it is stabilized by two capacitors and one. Component group A 7Γ-shaped filter Filters into a stable DC power supply. 10. The automatic control circuit of the drilling machine as described in item 3 of the scope of the patent application, wherein the advance and retreat control circuit and micro-processing are provided by a rectifier voltage stabilization circuit, which is connected by a bridge rectifier. After the AC power is rectified, a 7Γ-shaped filter composed of two capacitors and a voltage stabilizing element is used to filter into a stable DC power. 11. The automatic control circuit of the drilling machine as described in item 4 of the scope of the patent application, wherein the advance and retreat control circuit and micro-processing are provided by a rectifier voltage stabilization circuit, which is connected by a bridge rectifier. After the AC power is rectified, a 7Γ-shaped filter composed of two capacitors and a voltage stabilizing element is used to filter into a stable DC power. 9209023.ptd Page 17