CN104440398A - Drill bit detecting device - Google Patents
Drill bit detecting device Download PDFInfo
- Publication number
- CN104440398A CN104440398A CN201410763384.2A CN201410763384A CN104440398A CN 104440398 A CN104440398 A CN 104440398A CN 201410763384 A CN201410763384 A CN 201410763384A CN 104440398 A CN104440398 A CN 104440398A
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- China
- Prior art keywords
- plate
- drill bit
- location
- detecting device
- measured angular
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/09—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool
- B23Q17/0904—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool before or after machining
- B23Q17/0914—Arrangements for measuring or adjusting cutting-tool geometry machine tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/02—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent
- B24B49/06—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent requiring comparison of the workpiece with standard gauging plugs, rings or the like
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The invention provides a drill bit detecting device which comprises a measuring plate and positioning plates. The measuring plate comprises two oblique plates which are connected with each other in the same plane, and an included measuring angle which is identical to an included angle of two main cutting edges of a standard drill bit is formed at a joint of the two oblique plates; the positioning plates and the measuring plate are connected with one another, cling to the standard drill bit along the axial direction of the standard drill bit and are positioned on two sides of the measuring angle, and the distances from the positioning plates on the two sides of the measuring angle to an angle bisector of the measuring angle are consistent with each other. The drill bit detecting device has the advantages that whether chisel edges are positioned in the centers of to-be-detected drill bits or not can be judged according to positions of the chisel edges of the to-be-detected drill bits relative to an apex of the measuring angle, whether the lengths and angles of two main cutting edges of each to-be-detected drill bit are consistent with one another or not can be judged according to clinging conditions of the oblique plates and the main cutting edges of the to-be-detected drill bit, and accordingly the to-be-detected drill bits can be completely detected.
Description
Technical field
The present invention relates to drill bit detection technique field, more particularly, relate to a kind of drill bit detecting device.
Background technology
Drill bit goes out through hole or blind hole in order to drilling on solid material, and can to the cutter of existing hole reaming.Drill bit comprises knife bar and is positioned at two main cutting edges of knife rod head, accompanies chisel edge in the middle of two main cutting edges.
In use, two main cutting edges of its head and chisel edge wearing and tearing the soonest, therefore, will carry out reconditioning to main cutting edge to drill bit after its wearing and tearing.Traditional method is workman's rule of thumb rear knife face of two main cutting edges of coping drills on abrasive machine, error can be produced in the process of reconditioning, the error that the drill bit that diameter is larger produces is larger, cause the drill bit after reconditioning two main cutting edge angle and length inconsistent, and whether prior art cannot detect the angle of drill bit two main cutting edge after reconditioning and chisel edge whether identical with length in bit central.Use two main cutting edge angles and length is inconsistent or the bit bore at chisel edge Wei center, be easy to occur that hole dimension error, hole site skew, hole are oval, drilling deep hole time the phenomenon such as broken drill.
Therefore, whether how detecting the angle of drill bit two main cutting edge and chisel edge whether identical with length in bit central, is current those skilled in the art's problem demanding prompt solution.
Summary of the invention
In view of this, the invention provides a kind of drill bit detecting device, with the angle realizing detecting drill bit two main cutting edge, whether and chisel edge whether identical with length be in the object of bit central.
In order to achieve the above object, the invention provides following technical scheme:
A kind of drill bit detecting device, comprises and measures plate and location-plate, and described measurement plate is included in the two pieces of swash plates connected in same plane, and the junction of two pieces of described swash plates accompanies the measured angular identical with unit-type drill head two main cutting edge angle; Described location-plate is connected with described measurement plate and along described unit-type drill head axially, described unit-type drill head of fitting is arranged on described measured angular both sides, and the location-plate of described measured angular both sides is consistent to the distance of described measured angular angular bisector.
Preferably, in above-mentioned drill bit detecting device, described location-plate and described measurement plate are slidably connected, and glide direction is along described swash plate length direction.
Preferably, in above-mentioned drill bit detecting device, described swash plate is provided with slideway along its length, and described location-plate is connected with the slide bolt driving described location-plate to slide in described slideway.
Preferably, in above-mentioned drill bit detecting device, described location-plate is provided with the buckling groove coordinated with described swash plate, and the side of described buckling groove opening is provided with securing cover plate.
Preferably, in above-mentioned drill bit detecting device, two pieces of described swash plates of described measurement plate are affixed and be provided with inside described measured angular summit and hold and measure the measuring flume of chisel edge position at described measured angular place.
Preferably, in above-mentioned drill bit detecting device, described measurement plate is respectively equipped with the described main cutting edge length of measurement and the main scale scale of locating described location-plate by the junction of described swash plate to both sides.
Preferably, in above-mentioned drill bit detecting device, the link lateral surfaces of described location-plate and described measurement plate is provided with the secondary chi scale that auxiliary described main scale scale is located described location-plate along described oblique main scale scale direction.
Preferably, in above-mentioned drill bit detecting device, two pieces of described swash plates are hinged and at the rotation with in surface of described measured angular, described location-plate and described measurement plate slide and be rotationally connected at described measured angular place.
Preferably, in above-mentioned drill bit detecting device, described location-plate is removably connected with the lengthening block increasing its length.
Preferably, in above-mentioned drill bit detecting device, the angle of described measured angular is arranged between 100 degree to 140 degree.
Drill bit detecting device provided by the invention, comprise and measure plate and location-plate, two swash plates measuring plate accompany measured angular, this measured angular is consistent with the angle of two main cutting edges of unit-type drill head, measure plate and be connected with location-plate, location-plate is positioned at measured angular both sides, along the axis laminating unit-type drill head of unit-type drill head, namely fit with the sidewall of unit-type drill head, and the location-plate of measured angular both sides is consistent to the distance of measured angular angular bisector.Unit-type drill head i.e. two main cutting edge length and chisel edge all consistent with angle is positioned at the drill bit of bit central, when drill bit is detected for needs, drill bit head to be measured is snapped in measured angular, two main cutting edges are corresponding with swash plate respectively fits, chisel edge is positioned at measured angular vertex position, the i.e. link position of two swash plates, location-plate clamps drill bit sidewall to be measured, if two main cutting edge angles of drill bit to be measured are consistent and meet the requirements, its main cutting edge can be fitted completely with swash plate, and because two location-plates are consistent to the distance of measured angular angular bisector, therefore by the relative position on chisel edge to be measured and measured angular summit, can judge that whether chisel edge is at the center of drill bit to be measured, and then can judge that whether the length of two main cutting edges is consistent.Therefore, drill bit detecting device provided by the invention, whether can detect the angle of drill bit two main cutting edge and chisel edge whether identical with length in bit central, and efficiency is high, cost is low.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of drill bit detecting device provided by the invention;
Fig. 2 is the structural representation measuring plate in Fig. 1;
Fig. 3 is the positioning plate structure schematic diagram in left side in Fig. 1;
Fig. 4 is the positioning plate structure schematic diagram on right side in Fig. 1;
Fig. 5 is the schematic diagram of a kind of detection method of drill bit detecting device provided by the invention;
Structural representation when Fig. 6 is drill bit detecting device provided by the invention measurement drill bit;
In upper figure:
1 for measure plate, 2 be location-plate, 3 for slideway, 4 for slide bolt, 5 lengthen blocks, 6 for measuring flume, 7 for buckling groove, 8 for securing cover plate, 9 for reference block, 10 be survey mass.
Detailed description of the invention
The invention discloses a kind of drill bit detecting device, the angle of drill bit two main cutting edge and chisel edge whether identical with length can be detected whether in bit central.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, carry out clear, complete description to the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on embodiments of the invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in figs 1 to 6, Fig. 1 is the structural representation of drill bit detecting device provided by the invention; Fig. 2 is the structural representation measuring plate in Fig. 1; Fig. 3 is the positioning plate structure schematic diagram in left side in Fig. 1; Fig. 4 is the positioning plate structure schematic diagram on right side in Fig. 1; Fig. 5 is the schematic diagram of a kind of detection method of drill bit detecting device provided by the invention; Structural representation when Fig. 6 is drill bit detecting device provided by the invention measurement drill bit.
The invention provides a kind of drill bit detecting device, comprise and measure plate 1 and location-plate 2, measure plate 1 and be included in the two pieces of swash plates connected in same plane, the junction of two pieces of swash plates accompanies the measured angular identical with unit-type drill head two main cutting edge angle; Location-plate 2 is connected with measurement plate 1 and along unit-type drill head axially, laminating unit-type drill head is arranged on measured angular both sides, and the location-plate 2 of measured angular both sides is consistent to the distance of measured angular angular bisector.Unit-type drill head i.e. two main cutting edge length and chisel edge all consistent with angle is positioned at the drill bit of bit central, when drill bit is detected for needs, drill bit head to be measured is snapped in measured angular, two main cutting edges are corresponding with swash plate respectively fits, chisel edge is positioned at measured angular vertex position, the i.e. link position of two swash plates, location-plate 2 clamps drill bit sidewall to be measured, if two main cutting edge angles of drill bit to be measured are consistent and meet the requirements, its main cutting edge can be fitted completely with swash plate, and because two location-plates 2 are consistent to the distance of measured angular angular bisector, therefore by the relative position on chisel edge to be measured and measured angular summit, can judge that whether chisel edge is at the center of drill bit to be measured, and then can judge that whether the length of two main cutting edges is consistent.Therefore, drill bit detecting device provided by the invention, whether can detect the angle of drill bit two main cutting edge and chisel edge whether identical with length in bit central, and efficiency is high, cost is low.
In the present invention one specific embodiment, location-plate 2 is slidably connected with measurement plate 1, and glide direction is along swash plate length direction.Location-plate 2 is slidably connected with measurement plate 1, and the length direction along swash plate slides, and ensures that the location-plate 2 of measured angular both sides is consistent apart from the distance of measured angular angular bisector, and then can measure the drill bit of different-diameter.Specifically can ensure that the location-plate 2 of measured angular both sides is consistent apart from the distance of measured angular angular bisector in several ways, if such as measure the drill bit of diameter 10mm, the reference block 9 pairs of location-plates 2 can placing wide 10mm at measured angular place are located, if measure the drill bit of diameter 40mm, can add again in reference block 9 both sides and place the wide survey mass 10 of 15mm, position location-plate 2, the two side of reference block 9 is consistent to measured angular angular bisector distance.Namely, when there is no main scale scale and secondary chi scale, can be positioned location-plate 2 by said method.
In the present invention one specific embodiment, swash plate is provided with slideway 3 along its length, and location-plate 2 is connected with the slide bolt 5 driving location-plate 2 to slide in slideway 3.Concrete, at swash plate, slideway 3 is set along swash plate length direction, the hollow out that slideway 3 specifically can be set to close is arranged, and location-plate 2 is connected with slide bolt 5, and slide bolt 5 is first through slideway 3, then through affixed with bolt after the bolt hole of location-plate 2 end, when needs slide adjustment location-plate 2, unclamp bolt namely slidably, then tight a bolt and can locate location-plate 2, setting like this, can ensure that location-plate 2 switches smoothly in slip with fixing two states.
In the present invention one specific embodiment, location-plate 2 is provided with the buckling groove 7 coordinated with swash plate, and the side of buckling groove 7 opening is provided with securing cover plate 8.Concrete, location-plate 2 is provided with buckling groove 7, after buckling groove 7 coordinates with swash plate, positions on the swash plate width of location-plate 2, and then the side of buckling groove 7 opening, be provided with securing cover plate 8, the opening of buckling groove 7 that the setting of securing cover plate 8 is reduced, prevent location-plate 2 from moving along the width of swash plate, the location-plate 2 of setting like this, easy installation and removal, structure is simple, and also plays certain guide effect on location-plate 2 slides along swash plate length direction.
In the present invention one specific embodiment, measure two pieces of swash plates of plate 1 affixed and be provided with inside measured angular summit and hold and measure the measuring flume 6 of chisel edge position at measured angular place.Measure plate 1 and be provided with measuring flume 6 at measured angular vertex position, the position of measuring flume 6 is corresponding with the position of chisel edge, the position of chisel edge to be measured can be measured, and, when the top of drill bit to be measured be not very standard time, arranging of measuring flume 6 is held a part of drill bit top chisel edge to be measured and ensures the stickiness of swash plate and main cutting edge.
In the present invention one specific embodiment, measure the junction of plate 1 by swash plate and be respectively equipped with measurement main cutting edge length to both sides and the main scale scale that location-plate 2 is located.Operability is easy in order to what improve the accuracy of testing result and testing process, measurement plate 1 can arrange main scale scale, main scale scale is extended to both sides along the length of swash plate by the summit of measured angular, measure after plate 1 arranges main scale scale, can measure according to the main cutting edge length of main scale scale to drill bit to be measured, and even more important effect, namely according to main scale scale, location-plate 2 is positioned, ensure that the distance that it arrives measured angular angular bisector is consistent, improve the accuracy detected, and testing process is easy to operate.
In the present invention one specific embodiment, the link lateral surfaces of location-plate 2 and measurement plate 1 is provided with the secondary chi scale that auxiliary main scale scale is located location-plate 2 along oblique main scale scale direction.For increasing the accuracy of testing result further, can arrange secondary chi scale on location-plate 2, secondary chi scale is arranged along the direction of main scale scale, with the certainty of measurement of main scale scale supporting increase main scale scale, promotes the accuracy of locating location-plate 2 further.The certainty of measurement of such as main scale scale is 1mm, and the setting of secondary chi scale and main scale scale support the use and certainty of measurement can be increased to 0.1mm or 0.001mm etc., make testing result more accurate.
In the present invention one specific embodiment, two pieces of swash plates are hinged and at the rotation with in surface of measured angular at measured angular place, location-plate 2 with measure plate 1 and slide and be rotationally connected.Two pieces of swash plates are hinged at measured angular place, and can at the rotation with in surface at measured angular place, can at swash plate place rotation with in surface, therefore the size of measured angular can be regulated, detect with the drill bit to be measured different to main cutting edge angle angle, after rotation swash plate to assigned address, need rotational positioning plate 2 to drill bit shaft to be measured to parallel position, therefore location-plate 2 is the basis that measurement plate 1 is slidably connected is arranged to be rotationally connected further, be convenient to together with swash plate, detect the drill bit to be measured that main cutting edge angle angle is different, improve the applicability detected.
In the present invention one specific embodiment, location-plate 2 is removably connected with the lengthening block 5 increasing its length.For some drill bit to be measured, its axial length is longer, can to fit a lead of screw of drill bit to be measured for meeting location-plate 2, therefore can arrange and lengthen block 5, lengthening block 5 need not under general detection case, but when measuring longer drill bit to be measured, installing and lengthening block 5 to extend the axial distance of location-plate 2, to be applicable to detection axis to longer drill bit to be measured.
In the present invention one specific embodiment, the angle of measured angular is arranged between 100 degree to 140 degree.Because the main cutting edge angle of drill bit to be measured is generally between 100 degree to 140 degree, therefore measured angular is set between 100 degree to 140 degree, and concrete can be arranged to 105 degree, 120 degree and 135 degree three kinds, can meet the detection of most drill bit to be measured.
In this description, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a drill bit detecting device, it is characterized in that, comprise and measure plate (1) and location-plate (2), described measurement plate (1) is included in the two pieces of swash plates connected in same plane, and the junction of two pieces of described swash plates accompanies the measured angular identical with unit-type drill head two main cutting edge angle; Described location-plate (2) is connected with described measurement plate (1) and along described unit-type drill head axially, described unit-type drill head of fitting is arranged on described measured angular both sides, and the location-plate (2) of described measured angular both sides is consistent to the distance of described measured angular angular bisector.
2. drill bit detecting device according to claim 1, is characterized in that, described location-plate (2) and described measurement plate (1) are slidably connected, and glide direction is along described swash plate length direction.
3. drill bit detecting device according to claim 2, it is characterized in that, described swash plate is provided with slideway (3) along its length, and described location-plate (2) is connected with the slide bolt (5) driving described location-plate (2) to slide in described slideway (3).
4. drill bit detecting device according to claim 3, it is characterized in that, described location-plate (2) is provided with the buckling groove (7) coordinated with described swash plate, and the side of described buckling groove (7) opening is provided with securing cover plate (8).
5. drill bit detecting device according to claim 1, it is characterized in that, two pieces of described swash plates of described measurement plate (1) are affixed and be provided with inside described measured angular summit and hold and measure the measuring flume (6) of chisel edge position at described measured angular place.
6. the drill bit detecting device according to any one of claim 1 to 5, it is characterized in that, described measurement plate (1) is respectively equipped with the described main cutting edge length of measurement and the main scale scale of locating described location-plate (2) by the junction of described swash plate to both sides.
7. drill bit detecting device according to claim 6, it is characterized in that, the link lateral surfaces of described location-plate (2) and described measurement plate (1) is provided with the secondary chi scale that auxiliary described main scale scale is located described location-plate (2) along described oblique main scale scale direction.
8. drill bit detecting device according to claim 1, it is characterized in that, two pieces of described swash plates are hinged and at the rotation with in surface of described measured angular, described location-plate (2) and described measurement plate (1) are slided and be rotationally connected at described measured angular place.
9. drill bit detecting device according to claim 1, is characterized in that, described location-plate (2) is removably connected with the lengthening block (5) increasing its length.
10. drill bit detecting device according to claim 1, is characterized in that, the angle of described measured angular is arranged between 100 degree to 140 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410763384.2A CN104440398A (en) | 2014-12-12 | 2014-12-12 | Drill bit detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410763384.2A CN104440398A (en) | 2014-12-12 | 2014-12-12 | Drill bit detecting device |
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| Publication Number | Publication Date |
|---|---|
| CN104440398A true CN104440398A (en) | 2015-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410763384.2A Pending CN104440398A (en) | 2014-12-12 | 2014-12-12 | Drill bit detecting device |
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| CN (1) | CN104440398A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105180759A (en) * | 2015-09-28 | 2015-12-23 | 苏州汉腾自动化设备有限公司 | Bit detection device |
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|---|---|---|---|---|
| DD234483A1 (en) * | 1985-02-08 | 1986-04-02 | Automatisierungsanlagenbau Veb | MEASURING DEVICE FOR DETERMINING THE SNIPPING SYMMETRY OF SPIRAL DRILLING |
| CN86209557U (en) * | 1986-11-25 | 1987-10-31 | 张宝信 | Sliding gauge for drill sharpening |
| CN86210390U (en) * | 1986-12-12 | 1987-12-05 | 郑洪� | Measuring tool for testing centreline and point angle symmetry of a drill |
| CN2864583Y (en) * | 2005-10-20 | 2007-01-31 | 范春 | Drill head apical angle measuring rule |
| CN201210035Y (en) * | 2008-06-17 | 2009-03-18 | 陈福良 | Multipurpose angle gage |
| CN201421309Y (en) * | 2009-04-28 | 2010-03-10 | 南阳淅减汽车减振器有限公司 | Drill head sharpening proofreading calipers |
| CN202903080U (en) * | 2012-11-26 | 2013-04-24 | 湖南华菱湘潭钢铁有限公司 | Twist drill grinding inspection template |
| CN204430959U (en) * | 2014-12-12 | 2015-07-01 | 西南铝业（集团）有限责任公司 | A kind of drill bit testing apparatus |
-
2014
- 2014-12-12 CN CN201410763384.2A patent/CN104440398A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD234483A1 (en) * | 1985-02-08 | 1986-04-02 | Automatisierungsanlagenbau Veb | MEASURING DEVICE FOR DETERMINING THE SNIPPING SYMMETRY OF SPIRAL DRILLING |
| CN86209557U (en) * | 1986-11-25 | 1987-10-31 | 张宝信 | Sliding gauge for drill sharpening |
| CN86210390U (en) * | 1986-12-12 | 1987-12-05 | 郑洪� | Measuring tool for testing centreline and point angle symmetry of a drill |
| CN2864583Y (en) * | 2005-10-20 | 2007-01-31 | 范春 | Drill head apical angle measuring rule |
| CN201210035Y (en) * | 2008-06-17 | 2009-03-18 | 陈福良 | Multipurpose angle gage |
| CN201421309Y (en) * | 2009-04-28 | 2010-03-10 | 南阳淅减汽车减振器有限公司 | Drill head sharpening proofreading calipers |
| CN202903080U (en) * | 2012-11-26 | 2013-04-24 | 湖南华菱湘潭钢铁有限公司 | Twist drill grinding inspection template |
| CN204430959U (en) * | 2014-12-12 | 2015-07-01 | 西南铝业（集团）有限责任公司 | A kind of drill bit testing apparatus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105180759A (en) * | 2015-09-28 | 2015-12-23 | 苏州汉腾自动化设备有限公司 | Bit detection device |
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Application publication date: 20150325 |