CN201344781Y - Device for detecting distance between needle bar hole and upper shaft front hole of lockstitch sewing machine - Google Patents
Device for detecting distance between needle bar hole and upper shaft front hole of lockstitch sewing machine Download PDFInfo
- Publication number
- CN201344781Y CN201344781Y CNU2008201298925U CN200820129892U CN201344781Y CN 201344781 Y CN201344781 Y CN 201344781Y CN U2008201298925 U CNU2008201298925 U CN U2008201298925U CN 200820129892 U CN200820129892 U CN 200820129892U CN 201344781 Y CN201344781 Y CN 201344781Y
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- hole
- measuring
- face
- bar
- tool seat
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- 238000009958 sewing Methods 0.000 title abstract description 4
- 238000001514 detection method Methods 0.000 claims abstract description 13
- 238000005259 measurement Methods 0.000 abstract 1
- 238000007689 inspection Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000007799 cork Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 241001656951 Protheca Species 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
A device for detecting the distance between a needle bar hole and an upper shaft front hole of a lockstitch sewing machine comprises a measuring tool seat and a measuring bar, wherein the measuring tool seat is provided with a measuring bar through hole, a detection head which can be inserted into the upper shaft front hole of the lockstitch sewing machine is fixedly arranged on one end face of the measuring tool seat, the axis of the measurement head is perpendicular to one end face of the measuring tool seat and the axis of the measuring bar through hole, and the distance between one end face of the measuring tool seat and the axis of the measuring bar through hole is a set value. During detection, an operator slightly inserts a detection head of the measuring tool seat into the front hole of the upper shaft, one end face of the measuring tool seat is tightly attached to the end face of the front hole, and the measuring rod on the measuring tool seat corresponds to the upper hole and the lower hole of the needle rod through the hole. And inserting a measuring rod, and judging the measuring rod to be a qualified product if the measuring rod can easily pass through the measuring rod through hole, or judging the measuring rod to be a unqualified product. Compared with the prior art, the utility model discloses simple to use, convenience are fit for large batch and examine entirely, have improved the efficiency that detects, have guaranteed product quality.
Description
Technical field
The utility model relates to a kind of special detection device of the needle bar hole center of flat seam machine to distance between the front end face of the preceding hole of last axle that be used to detect.
Background technology
The axle front end of going up of flat seam machine is set with thread take-up crank, and the thread take-up crank rear end face is packed near last axle protheca Inner Front End face, and the front end of thread take-up crank is equipped with the big assembly of thread take-up tension lever.The thread take-up tension lever assembly is connected with shank by parts such as shank connecting rod and shank joints; Thread take-up tension lever stretches out casing from the take-up groove on the casing is middle, plays the take-up effect in the sewing process.
The take-up groove is located with needle bar hole in process.So in processing during needle bar hole, to the needle bar hole center to the preceding hole of last axle front end face apart from size, verticality, symmetry the tolerance control of a strictness is arranged all, thereby guarantee the quality of final assembly and usability aspect.
In the conventional sense of prior art, the needle bar hole center generally is to adopt measurers such as going up the vertical amount of axle seat, shank length bar, isometry block, adjusting supporting, height gauge, dial gauge to the tolerance of the preceding hole of last axle front end face, sees Table then and reads numerical value.Though the method can more accurately be read distance, verticality and the symmetry value of institute inspection machine needle bar hole center to the preceding hole of last axle front end face, but detection speed is too slow, complex steps, and require the operator need pass through certain professional training, be not suitable for the large batch of full inspection of enterprise.
The utility model content
The purpose of this utility model provides a kind of device apart from size, verticality, symmetry that can detect flat seam machine needle bar hole center to the preceding hole of last axle front end face expeditiously, and uses simple, convenient.
The utility model can be implemented by the following technical programs: pitch of holes pick-up unit before a kind of flat seam machine needle bar hole and the last axle, it comprises and offers measurer seat and the length bar of length bar by the hole, be set with the detection head of going up the preceding hole of axle that can insert flat seam machine on one end face of described measurer seat, the axial line of described measuring head is perpendicular to an end face of described measurer seat and the described length bar axial line by the hole, and an end face of described measurer seat and described length bar are the setting value of standard-required by the distance between the axial line in hole.
Described length bar has epimere, stage casing and hypomere, the external diameter of described epimere is slightly less than the aperture in hole on the shank of flat seam machine, the external diameter in described stage casing is slightly less than the aperture of described length bar by the hole, and the external diameter of described hypomere is slightly less than the aperture in hole under the shank of flat seam machine.
Also has handle on one end of described length bar.
Compared with the prior art the utility model has following advantage:
Owing to, generally can give the margin tolerance of certain processing pointedly, only otherwise exceed the margin tolerance of requirement, just be judged to be specification product, and need not read accurate data in machining with in detecting.Therefore, when using the utility model to detect, because an end face and the length bar of measurer seat are the setting value of standard-required by the distance between the axial line in hole, the operator only needs the detection head of measurer seat is inserted the preceding hole of axle gently, one end face of measurer seat is close to preceding hole end surface, and last hole and the position in following hole of the length bar on the measurer seat by hole and shank is corresponding.Insert length bar this moment, if length bar can be like a cork by length bar by the hole just be judged to be specification product, if can not insert, then be judged to substandard product.
Compared with prior art, the utility model uses simple, has avoided the loaded down with trivial details of conventional sense and to the degree that requires of operator's professional knowledge, is fit to large batch of full inspection, thereby has improved the efficient that detects greatly, has guaranteed product quality.
Description of drawings
Accompanying drawing 1 is a front view of the present utility model;
Accompanying drawing 2 is the side view of accompanying drawing 1;
Wherein:
1, length bar passes through the hole; 2, measurer seat; 3, length bar; 4, an end face; 5, measuring head; 6, epimere; 7, stage casing; 8, hypomere; 9, handle.
Embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present utility model is elaborated:
Pitch of holes pick-up unit before a kind of flat seam machine needle bar hole and the last axle, it comprises and offers measurer seat 2 and the length bar 3 of length bar by hole 1, be set with the detection head 5 of going up the preceding hole of axle that can insert flat seam machine on one end face 4 of described measurer seat 2, the axial line of described measuring head 5 is perpendicular to an end face 4 of described measurer seat 2 and the described length bar axial line by hole 1, and an end face 4 of described measurer seat 2 and described length bar are the setting value of standard-required by the distance between the axial line in hole 1.
Also have handle 9 on one end of described length bar 3, be convenient to the operator and hold.
Described length bar 3 has epimere 6, stage casing 7 and hypomere 8, the external diameter separately of epimere 6, stage casing 7 and hypomere 8 can not be too little can not be too big in order to avoid measure inaccurate.The external diameter of described epimere 6 is slightly less than the aperture in hole on the shank of flat seam machine, and the external diameter in described stage casing 7 is slightly less than the aperture of described length bar by hole 1, and the external diameter of described hypomere 8 is slightly less than the aperture in hole under the shank of flat seam machine.
When making this measurer, hole and following hole aperture size corresponding matching on the shank on the external diameter of length bar epimere 6 and hypomere 8 and the flat seam machine casing, the external diameter in length bar stage casing 7 and measurer seat 2 upper length bas are the twice that casing is processed this dimensional tolerence by the limit tolerance of the internal diameter size in hole 1, the preceding hole of the upward axle tolerance fit of one end face 4 of measurer seat 2 and flat seam machine, an end face 4 of measurer seat 2 requires to grind the plane vertical with the axial line of detection head 5 to guarantee verticality.One end face 4 of described measurer seat 2 and described length bar be that the basic size that requires with the casing processing technology is identical by the distance between the center, hole in hole 1, and it is perpendicular to require this rod to pass through the axial line of the axial line in hole 1 and detection head 5.
Owing to, generally can give the margin tolerance of certain processing pointedly, only otherwise exceed the margin tolerance of requirement, just be judged to be specification product, and need not read accurate data in machining with in detecting.Therefore, when using the utility model to detect, because an end face 4 and the length bar of measurer seat 2 are the setting value of standard-required by the distance between the axial line in hole 1, the operator only needs the detection head 5 of measurer seat 2 is inserted the preceding hole of axle gently, one end face 4 of measurer seat 2 is close to preceding hole end surface, and last hole and the position in following hole of the length bar on the measurer seat 2 by hole 1 and shank is corresponding.Insert length bar 3 this moment, if length bar 3 can be like a cork just is judged to be specification product, i.e. flat seam machine needle bar hole center all meeting the requirements apart from size, verticality, symmetry to last axle preceding hole front end face by length bar by hole 1; If can not insert, then be judged to substandard product.
Compared with prior art, the utility model uses simple, has avoided the loaded down with trivial details of conventional detection and to behaviour Author's professional knowledge require degree, be fit to large batch of full inspection, thereby greatly improved the efficient that detects, Guaranteed product quality.
Claims (3)
1, pitch of holes pick-up unit before a kind of flat seam machine needle bar hole and the last axle, it is characterized in that: it comprises and offers measurer seat (2) and the length bar (3) of length bar by hole (1), be set with the detection head (5) of going up the preceding hole of axle that can insert flat seam machine on one end face (4) of described measurer seat (2), the axial line of described measuring head (5) is perpendicular to the end face (4) of described measurer seat (2) and the described length bar axial line by hole (1), and an end face (4) and the described length bar of described measurer seat (2) are setting value by the distance between the axial line of hole (1).
2, pitch of holes pick-up unit before a kind of flat seam machine needle bar hole according to claim 1 and the last axle, it is characterized in that: described length bar (3) has epimere (6), stage casing (7) and hypomere (8), the external diameter of described epimere (6) is slightly less than the aperture in hole on the shank of flat seam machine, the external diameter in described stage casing (7) is slightly less than the aperture of described length bar by hole (1), and the external diameter of described hypomere (8) is slightly less than the aperture in hole under the shank of flat seam machine.
3, pitch of holes pick-up unit before a kind of flat seam machine needle bar hole according to claim 1 and the last axle is characterized in that: also have handle (9) on the end of described length bar (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201298925U CN201344781Y (en) | 2008-12-31 | 2008-12-31 | Device for detecting distance between needle bar hole and upper shaft front hole of lockstitch sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201298925U CN201344781Y (en) | 2008-12-31 | 2008-12-31 | Device for detecting distance between needle bar hole and upper shaft front hole of lockstitch sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201344781Y true CN201344781Y (en) | 2009-11-11 |
Family
ID=41276361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201298925U Expired - Fee Related CN201344781Y (en) | 2008-12-31 | 2008-12-31 | Device for detecting distance between needle bar hole and upper shaft front hole of lockstitch sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201344781Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840814A (en) * | 2012-09-07 | 2012-12-26 | 苏州工业职业技术学院 | Tooth pitch measuring device |
| CN104296646A (en) * | 2014-10-24 | 2015-01-21 | 亿和精密工业（苏州）有限公司 | Shaft perpendicularity detecting jig |
| CN105043205A (en) * | 2015-05-27 | 2015-11-11 | 南车四方车辆有限公司 | Lever ratio measurement device and lever ratio measurement method |
| CN105222685A (en) * | 2015-10-16 | 2016-01-06 | 重庆颖泉标准件有限公司 | A kind of gear automobile gear-box gear-shifting fork testing apparatus for verticality |
| CN105241362A (en) * | 2015-10-16 | 2016-01-13 | 重庆颖泉标准件有限公司 | Detection method of verticality of holes in gear shifting swing rod of automobile gearbox |
| CN109141200A (en) * | 2018-11-08 | 2019-01-04 | 衡阳市振洋汽车配件有限公司 | Hole symmetry degree gauge |
-
2008
- 2008-12-31 CN CNU2008201298925U patent/CN201344781Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840814A (en) * | 2012-09-07 | 2012-12-26 | 苏州工业职业技术学院 | Tooth pitch measuring device |
| CN104296646A (en) * | 2014-10-24 | 2015-01-21 | 亿和精密工业（苏州）有限公司 | Shaft perpendicularity detecting jig |
| CN105043205A (en) * | 2015-05-27 | 2015-11-11 | 南车四方车辆有限公司 | Lever ratio measurement device and lever ratio measurement method |
| CN105043205B (en) * | 2015-05-27 | 2017-10-31 | 中车四方车辆有限公司 | Lever ratio measurement apparatus and lever ratio measuring method |
| CN105222685A (en) * | 2015-10-16 | 2016-01-06 | 重庆颖泉标准件有限公司 | A kind of gear automobile gear-box gear-shifting fork testing apparatus for verticality |
| CN105241362A (en) * | 2015-10-16 | 2016-01-13 | 重庆颖泉标准件有限公司 | Detection method of verticality of holes in gear shifting swing rod of automobile gearbox |
| CN109141200A (en) * | 2018-11-08 | 2019-01-04 | 衡阳市振洋汽车配件有限公司 | Hole symmetry degree gauge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091111 Termination date: 20101231 |