CN104678445A - Detection device and method for through hole during drilling - Google Patents
Detection device and method for through hole during drilling Download PDFInfo
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- CN104678445A CN104678445A CN201510116066.1A CN201510116066A CN104678445A CN 104678445 A CN104678445 A CN 104678445A CN 201510116066 A CN201510116066 A CN 201510116066A CN 104678445 A CN104678445 A CN 104678445A
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Abstract
The invention discloses a detection device for a through hole during drilling. The device comprises a drill clamp, a drill and a workpiece, wherein an annular electromagnetic coil which is opposite to the drill is arranged below the workpiece; the electromagnetic coil comprises a current input terminal, an electric signal output terminal and a public ground terminal; an induction coil formed by the electric signal output terminal and the public ground terminal is connected with a magnetic field coil formed by the current input terminal and the public ground terminal in parallel. A cylindrical magnet yoke is arranged in the middle of the electromagnetic coil, and the cylindrical diameter of the magnet yoke is greater than the diameter of the drill. The device disclosed by the invention can be used for a manual bench drill to replace manual detection on the workpiece to detect whether the through hole is drilled through or not, so that the labor intensity of the worker is alleviated; the device can be further combined with an automatic processing machine tool to process the through hole; once the through hole is processed, the device stops further processing, so that the processing time is shortened.
Description
Technical field
Patent of the present invention relates to a kind of processing pick-up unit of hole, especially the automatic processing pick-up unit of holes drilled through.
Background technology
The processing in hole belongs to very common a kind of processing mode in machining, and holes drilled through is again wherein a kind of common processing.The processing of through hole adopts the mode of drill bit drilling usually, need sometimes to detect through hole whether completion of processing, and the information of through hole completion of processing during artificial, can be obtained by feel, but for automatic processing device, be just difficult to confirm through hole whether completion of processing.Patent of the present invention provides and a kind ofly detects the through hole method and apparatus whether drilling is complete.The method and device can help automatic processing machine tool to detect the machining state of through hole, thus realize the automatic processing of through hole, enhance productivity.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of device that manual observation workpiece can be replaced whether to have drilled.
For achieving the above object, technical scheme of the present invention is:
A kind of holes drilled through pick-up unit, comprises drilling attachment, drill bit and workpiece, and the arranged beneath of position and described workpiece has an annular magnet coil just right with described drill bit; Described solenoid includes current input terminal, electrical signal and common; The inductive coil of described electrical signal, common composition is in parallel with the field coil that current input terminal, common form.By electric current between the current input terminal and common of field coil, in coil, namely form magnetic field; The electrical signal of inductive coil and common are as signal end output detections electric signal.
The centre of described solenoid is provided with a cylindrical shape yoke.The drum diameter of described yoke is greater than the diameter of drill bit, to ensure that drill bit can not encounter pick-up unit.
Material due to drill bit is generally carbon steel or alloy steel, all there is good magnetic property, complete the drilling of through hole when drill bit and expose the bottom of workpiece, when magnetic test coil, magnetic resistance in yoke reduces, magnetic field intensity increases, and generation induction electromotive force to stop the enhancing in magnetic field, is therefore produced voltage signal by magnetic test coil in magnetic test coil.By detecting this voltage signal, just can judge through hole whether completion of processing, pantodrill can stop the continuation of drill bit to decline, and prevents drilling attachment from encountering workpiece.The chip got out falls into the feeder of below by columnar pick-up unit.
As preferably, described electrical signal is connected directly between the centre of current input terminal, common composition field coil, and forms inductive coil with common.
The method that holes drilled through detects, uses aforementioned described holes drilled through pick-up unit to detect; Drilling attachment accommodates drill bit, moves downward, workpiece processes through hole while rotation.When drill bit drills through workpiece and exposes workpiece lower surface, chisel edge, near coil, causes magnetic field in coil to strengthen.Because magnetic field intensity in coil strengthens, produce the induced voltage hindering magnetic field to strengthen in inductive coil, the situation of change measuring induction coil voltage just can confirm whether drill bit completes the processing of through hole.
beneficial effect:
The detection method of this through hole processing does not interfere the processing of through hole, and chip can not affect the work of pick-up unit, therefore practical and reliable.Utilize this device in conjunction with automatic processing machine tool, the processing of through hole can be completed, once through hole completion of processing can stop continuing processing, shorten process time.
Below in conjunction with specification drawings and specific embodiments, the present invention is described further.
Accompanying drawing explanation
Fig. 1 is the structure principle chart of patent of the present invention;
Fig. 2 is the wiring diagram of pick-up unit;
Fig. 3 is the connection layout of another kind of detection line.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
As shown in Figure 1, a kind of holes drilled through pick-up unit, the solenoid 5 primarily of drilling attachment 1, drill bit 2, workpiece 3 and Intermediate Gray yoke 4 forms, described solenoid 5 and drill bit 2 just to and be positioned at the below of workpiece 3; Material due to drill bit 2 is generally carbon steel or alloy steel, all has good magnetic property, and when drill bit 2 drills through workpiece 3 and exposes workpiece 3 lower surface, drill bit 2 front end, near coil 5, causes magnetic field in coil 5 to strengthen.The centre of described solenoid 5 is provided with a cylindrical shape yoke 4.The drum diameter of described yoke 4 is greater than the diameter of drill bit 2, to ensure that drill bit can not encounter pick-up unit.
As shown in Figure 2, the electromagnetic coil circuit connected mode of holes drilled through pick-up unit.Coil in figure between current input terminal 51 and common 53 is field coil, and the coil between electrical signal 52 and common 53 is inductive coil.Because magnetic field intensity in coil strengthens, produce the induced voltage hindering magnetic field to strengthen in inductive coil, the situation of change measuring induction coil voltage just can confirm whether drill bit completes the processing of through hole.
As preferably, the solenoid of holes drilled through pick-up unit also can adopt circuit wiring pattern as shown in Figure 3, and namely inductive coil adopts the part in field coil.
The foregoing is only preferred embodiment of the present invention, is not restriction with the present invention, and all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a holes drilled through pick-up unit, comprises drilling attachment (1), drill bit (2) and workpiece (3), it is characterized in that: the arranged beneath of position and described workpiece (3) has an annular magnet coil (5) just right with described drill bit (2); Described solenoid (5) includes current input terminal (51), electrical signal (52) and common (53); The inductive coil that described electrical signal (52), common (53) form is in parallel with the field coil that current input terminal (51), common (53) form.
2. holes drilled through pick-up unit according to claim 1, is characterized in that: the centre of described solenoid (5) is provided with a cylindrical shape yoke (4), and the drum diameter of described yoke (4) is greater than the diameter of drill bit (2).
3. holes drilled through pick-up unit according to claim 1 and 2, it is characterized in that: described electrical signal (52) is connected directly between the centre of current input terminal (51), common (53) composition field coil, forms inductive coil with common (53).
4. a method for holes drilled through detection, is characterized in that: use holes drilled through pick-up unit described in any one of claim 1 ~ 3 to detect; Drilling attachment (1) accommodates drill bit (2), moves downward, workpiece (3) processes through hole while rotation; When drill bit drills through workpiece and exposes workpiece lower surface, chisel edge, near coil (5), causes magnetic field in coil (5) to strengthen; Because magnetic field intensity in coil strengthens, produce the induced voltage hindering magnetic field to strengthen in inductive coil, the situation of change measuring induction coil voltage just can confirm whether drill bit completes the processing of through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510116066.1A CN104678445A (en) | 2015-03-17 | 2015-03-17 | Detection device and method for through hole during drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510116066.1A CN104678445A (en) | 2015-03-17 | 2015-03-17 | Detection device and method for through hole during drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104678445A true CN104678445A (en) | 2015-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510116066.1A Pending CN104678445A (en) | 2015-03-17 | 2015-03-17 | Detection device and method for through hole during drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104678445A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105345527A (en) * | 2015-11-28 | 2016-02-24 | 孙新梅 | V-shaped part drilling tool with ultrasonic testing function |
| CN105345528A (en) * | 2015-11-28 | 2016-02-24 | 孙新梅 | Ultrasonic testing drilling tool of V-shaped part |
| CN106424828A (en) * | 2016-12-07 | 2017-02-22 | 贵州黎阳航空动力有限公司 | Error prevention method and device for machining inclined hole deep in inner cavity |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2034487U (en) * | 1988-03-25 | 1989-03-22 | 龚坚 | Electromagentic type detector for open hole |
| US20110285412A1 (en) * | 2006-01-30 | 2011-11-24 | Daihen Corporation | Current detection printed board, voltage detection printed board, and current/voltage detector using same, and current detector and voltage detector |
| CN202974913U (en) * | 2012-09-26 | 2013-06-05 | 江苏徐航科技有限公司 | Device for detecting dredging of cast through hole of die pressed casting |
-
2015
- 2015-03-17 CN CN201510116066.1A patent/CN104678445A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2034487U (en) * | 1988-03-25 | 1989-03-22 | 龚坚 | Electromagentic type detector for open hole |
| US20110285412A1 (en) * | 2006-01-30 | 2011-11-24 | Daihen Corporation | Current detection printed board, voltage detection printed board, and current/voltage detector using same, and current detector and voltage detector |
| CN202974913U (en) * | 2012-09-26 | 2013-06-05 | 江苏徐航科技有限公司 | Device for detecting dredging of cast through hole of die pressed casting |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105345527A (en) * | 2015-11-28 | 2016-02-24 | 孙新梅 | V-shaped part drilling tool with ultrasonic testing function |
| CN105345528A (en) * | 2015-11-28 | 2016-02-24 | 孙新梅 | Ultrasonic testing drilling tool of V-shaped part |
| CN106424828A (en) * | 2016-12-07 | 2017-02-22 | 贵州黎阳航空动力有限公司 | Error prevention method and device for machining inclined hole deep in inner cavity |
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| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20150603 |