Utility model content
The utility model object is to provide a kind of drill bit automatic reset device, has deviation, the technical problem that working (machining) efficiency is low or glass crashes causing to solve existing glass drilling machine drill bit reset.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of drill bit automatic reset device is provided, drill bit moves up and down under the driving of motor, this drill bit automatic reset device comprises: the fan-shaped part rotating under the driving of motor, and be fixed on drill bit pedestal end points for detection of fan-shaped part to judge whether drill bit is reset to the initial point detecting sensor of initial point; Initial point detecting sensor is for output detection signal to controller, and controller is used for according to the action of the detection signal control motor of initial point detecting sensor, to guarantee that drill bit is reset to initial point.
Further, this drill bit automatic reset device also comprises the limes superiors detecting sensor, the limit inferior detecting sensor that are fixed on drill bit pedestal, limit detection part with fan-shaped part interlock is set on fan-shaped part, limes superiors detecting sensor, limit inferior detecting sensor and limit detection part are positioned at same circumferential plane and stagger with the residing circumferential plane of initial point detecting sensor, and whether limes superiors detecting sensor and limit inferior detecting sensor go beyond the limit of position and generate detection signal to controller for detection of drill bit.
Further, initial point detecting sensor is arranged on drill bit pedestal through the first retainer ring, limes superiors detecting sensor and limit inferior detecting sensor through the second retainer ring and the first retainer ring against and be fixed on drill bit pedestal;
Fan-shaped part is embedded at the boring region of the first retainer ring, and limit detection part is positioned at the boring region of the second retainer ring.
Further, the original relative position between limit detection part and fan-shaped part is adjustable.
Further, the output shaft of motor drives fan-shaped part rotation through gear drive, chain transmission or rope band transmission.
Further, controller is provided with for pointing out drill bit to go beyond the limit of the alarm unit of position.
Further, drill bit is glass drilling machine bit.
Further, initial point detecting sensor is photoelectric sensor or electromagnetic sensor.
The utlity model has following beneficial effect:
The utility model drill bit automatic reset device, by initial point detecting sensor is set on drill bit pedestal, and be arranged on motor drive under the fan-shaped part that rotates, the end points that detects fan-shaped part according to initial point detecting sensor judges whether drill bit is reset to initial point, realize automatically reseting after drill bit is holed at every turn, cumulative errors are reduced, and drill bit origin position and distance travelled accuracy are guaranteed, thereby be convenient to the thickness according to glass, select suitable F.F. distance and work to enter distance, with in improving glass processing efficiency, avoid the glass in glass processing process to crash accident, and occur when abnormal at drill bit, can judge the relative position relation of drill bit and initial point by the detection signal of initial point detecting sensor, control drill bit and accurately return back to initial point to facilitate.
Except object described above, feature and advantage, the utility model also has other object, feature and advantage.Below with reference to figure, the utility model is described in further detail.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
With reference to Fig. 1 and 2, preferred embodiment of the present utility model provides a kind of drill bit automatic reset device.In the present embodiment, drill bit 6 is take glass drilling machine bit as example, and drill bit 6 moves up and down that under the driving of motor 1 glass is carried out to Drilling operation.The present embodiment drill bit automatic reset device comprises: the fan-shaped part 8 rotating under the driving of motor 1, and be fixed on drill bit pedestal 10 terminal A for detection of fan-shaped part 8 to judge whether drill bit 6 is reset to the initial point detecting sensor 4 of initial point; Initial point detecting sensor 4 output detection signals are to controller (not shown), and controller is according to the action of the detection signal control motor 1 of initial point detecting sensor 4, to guarantee that drill bit 6 is reset to initial point.
According to the present embodiment, by initial point detecting sensor 4 is set on drill bit pedestal, and be arranged on motor drive under the fan-shaped part 8 that rotates, the terminal A that detects fan-shaped part 8 according to initial point detecting sensor 4 judges whether drill bit 6 is reset to initial point, realize automatically reseting after drill bit 6 is holed at every turn, cumulative errors are reduced, and drill bit 6 origin positions and distance travelled accuracy are guaranteed, thereby be convenient to the thickness according to glass, select suitable F.F. distance and work to enter distance, with in improving glass processing efficiency, avoid the glass in glass processing process to crash accident, and occur when abnormal at drill bit 6, can judge the relative position relation of drill bit 6 and initial point by the detection signal of initial point detecting sensor 4, control drill bit 6 and accurately return back to initial point to facilitate.
Preferably, in the present embodiment, on drill bit pedestal 10 be provided with the first retainer ring 2 and the second retainer ring 3, the first retainer rings 2 adjacent with the second retainer ring 3 and be all fixedly arranged on drill bit pedestal 10, initial point detecting sensor 4 is installed on the sidewall of the first retainer ring 2; Limes superiors detecting sensor 7 and limit inferior detecting sensor 5 are installed on respectively on the residing sidewall of diverse location of the second retainer ring 3, to detect limes superiors position and the limit inferior position of drill bit 6; Fan-shaped part 8 is embedded at the boring region of the first retainer ring 2, and limit detection part 9 is positioned at the boring region of the second retainer ring 3.Wherein, initial point detecting sensor 4 is for detection of the position of fan-shaped part 8, and in the time that fan-shaped part 8 is relative with initial point detecting sensor 4, initial point detecting sensor 4 generates high level signal; Limes superiors detecting sensor 7, limit inferior detecting sensor 5 are for detection of the residing position of limit detection part 9, in the time that limit detection part 9 is relative with limes superiors detecting sensor 7, limes superiors detecting sensor 7 generates high level signal, to illustrate that drill bit 6 reaches limes superiors position; In the time that limit detection part 9 is relative with limit inferior detecting sensor 5, limit inferior detecting sensor 5 generates high level signal, to illustrate that drill bit 6 reaches limit inferior position.In the present embodiment, the detection signal that initial point detecting sensor 4, limes superiors detecting sensor 7 and limit inferior detecting sensor 5 generate all passes to controller, and controller is according to the action of the detection signal control motor 1 receiving and generate extreme position alarm signal.
In the present embodiment, motor 1 is preferably stepper motor, and stepper motor does and drives drill bit 6 to do linear elevating movement under the electric impulse signal effect of controller.In the present embodiment, stepper motor drives drill bit 6 to move up and down through turbine and worm mechanism; The output shaft of stepper motor drives fan-shaped part 8 to rotate through gear drive, chain transmission or rope band transmission, and to guarantee that drill bit 6 is in lifting operation, fan-shaped part 8 does for reflecting rotatablely moving of drill bit lifting displacement.Limit detection part 9 is positioned at the boring region of the second retainer ring 3, and links with fan-shaped part 8, to do rotatablely moving of reflection drill bit lifting displacement.Preferably, original relative position between limit detection part 9 and fan-shaped part 8 is adjustable, for example, between limit detection part and fan-shaped part 8, be connected or multiple draw-in grooves for clamping limit detection part 9 are set on fan-shaped part 8 through ratchet mechanism, like this, by the relative position between accommodation limit detection part 9 and fan-shaped part 8, can regulate the particular location of limes superiors and the limit inferior of drill bit 6, to meet different processing requests.
Preferably, for in the time that limes superiors detecting sensor 7 or limit inferior detecting sensor 5 detect that drill bit 6 reaches capacity position, remind in time operator, controller is provided with for pointing out drill bit 6 to go beyond the limit of the alarm unit of position, this alarm unit can adopt audio alert module or sound and light alarm module, as conventional buzzer, indicator lamp, voice-output unit, LED display etc.
Preferably, initial point detecting sensor 4, limes superiors detecting sensor 7 and limit inferior detecting sensor 5 are photoelectric sensor or electromagnetic sensor.In the time that initial point detecting sensor 4, limes superiors detecting sensor 7 and limit inferior detecting sensor 5 adopt electromagnetic sensor, fan-shaped part 8 and limit detection part 9 adopt magnetic material to make.
According on the other hand of the present utility model, a kind of drill bit automatic reset control method is also provided, apply above-mentioned drill bit automatic reset device, this control method comprises:
In the time that drill bit 6 rollbacks reset, judge whether initial point detecting sensor 4 detects fan-shaped part 8, if, drive motors 1 is along driving drill bit 6 to move with the direction of rollback reset opposite direction, until initial point detecting sensor 4 can't detect fan-shaped part 8; Carry out if not subsequent step;
Reduce the step-wise displacement amount of motor 1, and drive drill bit 6 to continue rollback reset, until initial point detecting sensor 4 detects the end points of fan-shaped part 8, complete drill bit 6 and reset.
Below in conjunction with Fig. 2, drill bit auto-reset method is specifically described:
In Fig. 2, use drill bit boring downwards as example take glass drilling machine, in the time of drill bit 6 operation boring downwards, fan-shaped part 8 rotates clockwise, drill bit 6 is holed complete while upwards returning, fan-shaped part 8 counterclockwise rotates, and when the terminal A of fan-shaped part 8 is aimed at the position of initial point detecting sensor 4 just, is the origin position of drill bit 6.After guaranteeing each boring, drill bit 6 can accurately be got back to origin position, starts the drill bit automatic reset control method of the present embodiment.Drill bit 6 carries out rollback reset after having worked time, rise while reset, if initial point detecting sensor 4 is above A point, initial point detecting sensor 4 does not detect signal, in the stepping amount of step motor control drill bit 6 with each 0.05mm, moves, and fan-shaped part 8 rotates counterclockwise, in the time that initial point detecting sensor 4 just detects signal, initial point detecting sensor 4 is aimed at A point just, and stepper motor quits work, and now position is the origin position of drill bit 6.If initial point detecting sensor 4 is below A point, initial point detecting sensor 4 detects signal, step motor control drill bit 6 moves down with the stepping amount of each 0.05mm, fan-shaped part 8 turns clockwise, in the time that initial point detecting sensor 4 does not detect signal, in the stepping amount of step motor control drill bit with 0.05mm, move, fan-shaped part 8 is rotated counterclockwise, initial point detecting sensor 4 detects signal again, A point is aimed at initial point detecting sensor 4 just, stepper motor quits work, and now position is the origin position of drill bit 6.Certainly, in other embodiments, the direction of rotation of fan-shaped part 8 can be adjusted, while decline as drill bit, counterclockwise rotation of fan-shaped part 8, when drill bit rises, fan-shaped part 8 turns clockwise, the present embodiment does not limit the direction of rotation of fan-shaped part 8, only need carry out the displacement of synchronous reaction drill bit 6 in lifting direction by the rotation of fan-shaped part 8.
Preferably, limit detection part 9 rotates along with the rotation of fan-shaped part 8, in the time that limit detection part 9 and limit inferior detecting sensor 5 approach, drill bit 6 arrives limit inferior position, forbid that drill bit continues descending, in the time that limit detection part 9 and limes superiors detecting sensor 7 approach, drill bit 6 arrives limes superiors position, forbids that drill bit continues up.Preferably, controller generates alarm signal in the time that drill bit 6 reaches capacity position.In the present embodiment, accommodation limit detects the start angle of pointer 9 and horizontal direction, can regulate the particular location of drill bit 6 high-low limits.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.