CN203751790U - Clamp for processing needle rods of sewing machine - Google Patents
Clamp for processing needle rods of sewing machine Download PDFInfo
- Publication number
- CN203751790U CN203751790U CN201320690379.4U CN201320690379U CN203751790U CN 203751790 U CN203751790 U CN 203751790U CN 201320690379 U CN201320690379 U CN 201320690379U CN 203751790 U CN203751790 U CN 203751790U
- Authority
- CN
- China
- Prior art keywords
- sewing machine
- stopper
- clamp body
- expansion sleeve
- fixture
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a clamp for processing needle rods of a sewing machine. The clamp comprises a clamp body and an elastic expansion sleeve, a stopper and an elastic piece which are arranged in the clamp body, wherein the elastic piece can be pressed by the stopper; the periphery of the elastic expansion sleeve is cylindrical; the needle rods of the sewing machine are arranged in an inner hole between the clamp body and the elastic expansion sleeve; the elastic expansion sleeve is internally provided with a through wedge-shaped hollow part; the stopper can be plugged into the hollow part in the elastic expansion sleeve; the elastic piece is arranged in a gap of the hollow part in the stopper and the elastic expansion sleeve; one end of the elastic piece bears the supporting force of the bottom end of the clamp body, and the other end of the elastic piece bears the pressure of the stopper. The clamp provided by the utility model has the advantages that a plurality of clamps can be processed simultaneously, so that the production efficiency is improved; and the structure is simple, the adjustment is easy, the clamping is convenient and the use is wide.
Description
Technical field
The utility model relates to sewing machine component processing component, more specifically, relates to a kind of fixture for processing sewing machine shank.
Background technology
Needle bar of sewing machine is parts important on sewing machine, is the part that a kind of dimensional accuracy, mutual alignment and surface roughness are had relatively high expectations.In traditional processing technology, in the time of processing sewing machine shank, first on centerless grinder, cylindrical is roughly ground, made cylindrical there is certain dimensional accuracy and surface roughness, and then on lathe, this needle bar of sewing machine is processed.The general processing method of needle rod end surface is parts are clamped in to the chuck of common conventional lathe or do not stop on chuck, with lathe tool turning gradually.This traditional processing method has been applicable to single-piece work, and is difficult to ensure the crudy of shank, and working (machining) efficiency is also lower.And in the time of processing end face, need to drive frequently, stop, the precision to lathe and life-span have a significant impact like this, particularly serious to the damage comparison of machine motor.Therefore, need to solve above defect of the prior art by the processing work that improves needle bar of sewing machine.
Utility model content
For above-mentioned defect of the prior art, it is a kind of simple in structure, easy to use and effectively improve the fixture of needle bar of sewing machine working (machining) efficiency and treatment that the utility model provides.
A kind of fixture for processing sewing machine shank described in the utility model, comprise clamp body, be arranged on the elastic expansion sleeve in described clamp body, stopper and the shell fragment that can be pushed down by described stopper, the periphery of described elastic expansion sleeve is cylinder, endoporus between described clamp body and described elastic expansion sleeve periphery cylinder is placed needle bar of sewing machine, described elastic expansion sleeve inside is provided with the wedge shape hollow space running through, described stopper can be filled in described elastomer expansion set inner hollow part, described shell fragment is placed in the space between described stopper and elastomer expansion set inner hollow part, the support force of described clamp body bottom is born in one end of described shell fragment, the other end of described shell fragment bears the pressure of described stopper.
In a preferred embodiment of the present utility model, further comprise, the periphery of described elastic expansion sleeve is provided with helicla flute.
In a preferred embodiment of the present utility model, further comprise, the periphery periphery of described elastic expansion sleeve is coated with the metal material that one deck is soft.
In a preferred embodiment of the present utility model, further comprise, the cylinder that described clamp body is hollow, the bottom of described clamp body is provided with circular hole.
In a preferred embodiment of the present utility model, further comprise, also comprise the pull bar through described stopper, described pull bar is through described circular hole.
In a preferred embodiment of the present utility model, further comprise, described clamp body is fixed on lathe spindle one end.
In a preferred embodiment of the present utility model, further comprise, the other end of described lathe spindle is fixed a clamping cylinder.
In a preferred embodiment of the present utility model, further comprise, described clamping cylinder and described pull bar link together by nut.
In a preferred embodiment of the present utility model, further comprise, described nut is pressed on described stopper, between described nut and stopper, is provided with pad.
A kind of fixture for processing sewing machine shank providing of the present utility model, has solved the drawback of traditional shank single-piece work, utilize this fixture can several processing simultaneously, improved production efficiency; This fixture is arranged on lathe and gets final product highly-efficient processing needle bar of sewing machine, unloads this fixture, and lathe can continue to process other structure members, improves the utilization rate of lathe; And this clamp structure is simple, easily to adjust, convenient mounting and clamping, is used extensively, after replacing clamp body and elastic expansion sleeve, can process the simple slender rod type workpiece of other cylindricals.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is end face front view of the present utility model.
Fig. 2 is right view of the present utility model.
Wherein, 1-clamping cylinder, 2-lathe spindle, 3-shell fragment, 4-clamp body, 5-elastic expansion sleeve, 6-needle bar of sewing machine, 7-stopper, 8-pad, 9-nut, 10-pull bar.
Detailed description of the invention
In order to make those skilled in the art person understand better the utility model scheme, and above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, below in conjunction with embodiment and embodiment accompanying drawing, the utility model is described in further detail.
As shown in Figure 1-2, the utility model provides a kind of fixture for processing sewing machine shank, comprise clamp body 4, be arranged on the elastic expansion sleeve 5 in above-mentioned clamp body 4, stopper 7 and the shell fragment 3 that can be pushed down by above-mentioned stopper 7, the periphery of above-mentioned elastic expansion sleeve 5 is cylinder, endoporus between above-mentioned clamp body 4 and above-mentioned elastic expansion sleeve 5 periphery cylinders is placed needle bar of sewing machine 6, above-mentioned elastic expansion sleeve 5 inside are provided with the wedge shape hollow space running through, above-mentioned stopper 7 can be filled in above-mentioned elastomer expansion set 5 inner hollow parts, above-mentioned shell fragment 3 is placed in the space between above-mentioned stopper 7 and elastomer expansion set 5 inner hollow parts, the support force of above-mentioned clamp body 4 bottoms is born in one end of above-mentioned shell fragment 3, the other end of above-mentioned shell fragment 3 bears the pressure of above-mentioned stopper 7.
Fixture in the utility model embodiment, also comprising can be through the pull bar of above-mentioned stopper 7 10, and above-mentioned clamp body 4 essence are cylinders of a hollow, are provided with circular hole in the bottom of clamp body 4, and above-mentioned pull bar 10 can pass above-mentioned circular hole.Above-mentioned clamp body 4 can be fixed on one end of lathe spindle 2, this car hits the other end of main shaft 2 and fixes a clamping cylinder 1, above-mentioned pull bar 10 is connected and fixed by nut 9 and above-mentioned clamping cylinder 1, pull bar 10 is to link together with clamping cylinder 1 through the circular hole nut 9 of stopper 7 and clamp body 4 bottoms, be that above-mentioned nut 9 is pressed on stopper 7, between them, be provided with pad 8, increase elasticity between the two.
In most preferred embodiment of the present utility model, will on the periphery cylinder of above-mentioned elastic expansion sleeve 5, have helicla flute (not shown), the object of doing is like this to prevent that indivedual needle bar of sewing machine are not clamping in space between clamp body 4 and elastic expansion sleeve 5 periphery cylinders; Further improve, at the softer metal material of periphery periphery plating one deck of elastic expansion sleeve 5, increased the elasticity of elastic expansion sleeve 5 periphery cylinders, solved needle bar of sewing machine not of uniform size the causing of 6 outside diameter and not clamping problem.
The fixture step that the utility model provides is installed: first the chuck on lathe is dismantled, clamp body 4 is arranged on lathe spindle 2, according to production requirement, the bore area contacting with needle bar of sewing machine 6 outer round surface is processed in advance, then elastic expansion sleeve 5, shell fragment 3 and stopper 7 are encased in clamp body 4 respectively, again clamping cylinder 1 is fixed on the other end of lathe spindle 2, pull bar 10, pad 8, nut 9 are linked together with clamping cylinder 1.Needle bar of sewing machine 6 is placed in the endoporus between clamp body 4 and elastic expansion sleeve 5 periphery cylinders, can complete the installation of this fixture.
Pull bar 10 drives nut 9, pad 8, stopper 7 to move to the direction that clamping cylinder 1 is housed left, shell fragment 3 is subject to the pressure of stopper 7 and is compressed, elastic expansion sleeve 5 is distending under the radial load effect of stopper 7, thereby makes needle bar of sewing machine 6 swellings between clamp body 4 and elastic expansion sleeve 5.In the time that pull bar moves in the opposite direction, stopper 7 also moves in the opposite direction under the promotion of shell fragment 3, at this moment elastic expansion sleeve 5 has recovered original shape, and clamped needle bar of sewing machine 6 unclamps, and at this moment just can from fixture, needle bar of sewing machine 6 be taken out very easily.
The above; it is only detailed description of the invention of the present utility model; protection domain of the present utility model is not limited to this; any be familiar with those skilled in the art the utility model disclose technical scope in; the variation that can expect easily or replacement, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain that claim was defined.
Claims (9)
1. the fixture for processing sewing machine shank, it is characterized in that, comprise clamp body and be arranged on the elastic expansion sleeve in described clamp body, stopper and the shell fragment that can be pushed down by described stopper, the periphery of described elastic expansion sleeve is cylinder, endoporus between described clamp body and described elastic expansion sleeve periphery cylinder is placed needle bar of sewing machine, described elastic expansion sleeve inside is provided with the wedge shape hollow space running through, described stopper can be filled in described elastomer expansion set inner hollow part, described shell fragment is placed in the space between described stopper and elastomer expansion set inner hollow part, the support force of described clamp body bottom is born in one end of described shell fragment, the other end of described shell fragment bears the pressure of described stopper.
2. a kind of fixture for processing sewing machine shank according to claim 1, is characterized in that, the periphery of described elastic expansion sleeve is provided with helicla flute.
3. a kind of fixture for processing sewing machine shank according to claim 2, is characterized in that, the periphery periphery of described elastic expansion sleeve is coated with the metal material that one deck is soft.
4. a kind of fixture for processing sewing machine shank according to claim 1, is characterized in that, the cylinder that described clamp body is hollow, and the bottom of described clamp body is provided with circular hole.
5. a kind of fixture for processing sewing machine shank according to claim 4, is characterized in that, also comprises the pull bar through described stopper, and described pull bar is through described circular hole.
6. a kind of fixture for processing sewing machine shank according to claim 1, is characterized in that, described clamp body is fixed on lathe spindle one end.
7. a kind of fixture for processing sewing machine shank according to claim 6, is characterized in that, the other end of described lathe spindle is fixed a clamping cylinder.
8. a kind of fixture for processing sewing machine shank according to claim 5, is characterized in that, described clamping cylinder and described pull bar link together by nut.
9. a kind of fixture for processing sewing machine shank according to claim 8, is characterized in that, described nut is pressed on described stopper, between described nut and stopper, is provided with pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320690379.4U CN203751790U (en) | 2013-11-05 | 2013-11-05 | Clamp for processing needle rods of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320690379.4U CN203751790U (en) | 2013-11-05 | 2013-11-05 | Clamp for processing needle rods of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203751790U true CN203751790U (en) | 2014-08-06 |
Family
ID=51247101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320690379.4U Expired - Fee Related CN203751790U (en) | 2013-11-05 | 2013-11-05 | Clamp for processing needle rods of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203751790U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103537940A (en) * | 2013-11-05 | 2014-01-29 | 吴江唯奇布业有限公司 | Clamp used for machining of needle bar of sewing machine |
| CN108789216A (en) * | 2018-06-21 | 2018-11-13 | 江西昌河航空工业有限公司 | Supporting combined device between a kind of auricle |
-
2013
- 2013-11-05 CN CN201320690379.4U patent/CN203751790U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103537940A (en) * | 2013-11-05 | 2014-01-29 | 吴江唯奇布业有限公司 | Clamp used for machining of needle bar of sewing machine |
| CN108789216A (en) * | 2018-06-21 | 2018-11-13 | 江西昌河航空工业有限公司 | Supporting combined device between a kind of auricle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20141105 |
|
| EXPY | Termination of patent right or utility model |