CN203579229U - Inner hole positioning clamp - Google Patents
Inner hole positioning clamp Download PDFInfo
- Publication number
- CN203579229U CN203579229U CN201320700007.5U CN201320700007U CN203579229U CN 203579229 U CN203579229 U CN 203579229U CN 201320700007 U CN201320700007 U CN 201320700007U CN 203579229 U CN203579229 U CN 203579229U
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- China
- Prior art keywords
- inner hole
- elastic portion
- fixture
- bar
- bellmouth
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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.)
- Expired - Lifetime
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- 230000000694 effects Effects 0.000 description 11
- 230000000916 dilatatory effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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Abstract
The utility model provides an inner hole positioning clamp, belongs to the technical field of machine tool components, and solves the problems that the conventional inner hole positioning clamp has a complex structure and inconvenience in assembling and disassembling. The inner hole positioning clamp comprises a flange plate, wherein a clamp head penetrates through one side of the flange plate and is in threaded connection with the flange plate; the clamp head comprises a connecting part which is connected with the flange plate, and a cylindrical elastic part; a conical hole is formed in one end, far away from the connecting part, of the elastic part; a push-pull rod penetrates through the clamp head; the outer end of the push-pull rod can press against the wall of the conical hole. The inner hole positioning clamp has the advantages of simple structure, convenience in disassembling and the like.
Description
Technical field
The utility model belongs to machine tool component technical field, relates to a kind of positioning fixture, particularly a kind of fixture for locating inner hole.
Background technology
The current fixture with Internal hole positioning turning external diameter, a lot of chucks that adopt, by a pad and helical clamping turning external diameter, install and remove all very inconveniently, directly had influence on product at the yield on the same day, greatly wasted a lot of time, its production efficiency cannot be improved, and mounting or dismounting time, need manual intervention, there is certain potential safety hazard.
For this situation, people have recognized this deficiency, and carry out improvement, and the one pair openly proposing as Chinese patent literature data pushes away internal bracing cylindrical centering clamping [application numbers: 200820149198.X, Granted publication number: CN201253765Y], it comprises hydraulic power unit, actuating unit, center has the chuck body of axial passage and is set in the elasticity support set outside chuck body, hydraulic power unit and elasticity support set are in transmission connection by actuating unit, hydraulic power unit comprises hydraulic jack, piston and piston rod, piston rod is in transmission connection by branch sleeve and actuating unit, between chuck body and elasticity support set, be arranged with tapered sleeve cylinder, tapered sleeve cylinder is fixedly connected with by screw with chuck body, elasticity support set and tapered sleeve cylinder are slidably connected, the mating surface of elasticity support set and tapered sleeve cylinder is ladder taper, elasticity support set outside cylinder bus is parallel with chuck body center line, actuating unit comprises the pull bar being located in chuck body axial passage, pull bar front end is fixedly connected with by branch sleeve with piston rod, the pull bar rear end silk braid cylinder that is spirally connected, silk barrel forward end is provided with ring baffle, the silk braid cylinder hold-down nut that is spirally connected outward, the silk braid cylinder of asking of hold-down nut and ring baffle is fixed with circular end cap outward, the anterior circumference of end cap outer end is provided with tapered sleeve tube rear end and pushes the annular jacking block being connected.It is comparatively complicated that but this pair pushes away the structure of internal bracing cylindrical centering clamping, and disassembling, assembling and replacing is inconvenience comparatively.
Summary of the invention
The purpose of this utility model is to have the problems referred to above for existing technology, has proposed a kind of simple in structure, dismounting fixture for locating inner hole comparatively easily.
The purpose of this utility model can realize by following technical proposal: a kind of fixture for locating inner hole, comprise ring flange, it is characterized in that, one side of described ring flange is equipped with chuck and described chuck is connected with described ring flange screw thread, described chuck comprises the connecting portion and the tubular elastic portion that are connected with described ring flange, described elastic portion has bellmouth away from one end of described connecting portion, and the outer end that described chuck is equipped with pull bar and described pull bar can be resisted against on the hole wall of described bellmouth.
This Internal hole positioning chuck is arranged on by ring flange on the terminal pad of lathe, and the other end of pull bar is connected with the piston rod of cylinder or oil cylinder.During positioning workpieces, the workpiece with endoporus is enclosed within elastic portion, by oil cylinder, drive the translation of pull bar make the outer end of pull bar act on bellmouth and elastic portion is opened, workpiece is positioned in elastic portion, when unclamping, the piston rod of oil cylinder resets, and the outer end of pull bar departs from bellmouth, and now elastic portion resets and is convenient to taking off of workpiece.Chuck is connected with ring flange screw thread, has dismounting more for convenience, is convenient to different chucks is installed, and makes the use of this fixture for locating inner hole more for convenience, and meanwhile, this fixture for locating inner hole also has advantages of simple in structure, easily manufactured.
In above-mentioned fixture for locating inner hole, described pull bar outer end has the taper surface matching with described bellmouth, and described taper surface can be resisted against on the hole wall of described bellmouth.Taper surface and the bellmouth of pull bar lean, and during positioning workpieces, dilatory bar can make elastic portion that deformation occurs comparatively uniformly, makes elastic portion have good locating effect.
In above-mentioned fixture for locating inner hole, the inner of described pull bar tubular thread bush that has been threaded.The inner of pull bar tubular thread bush that has been threaded, thread bush is connected with the piston rod thread of oil cylinder, has connection advantage comparatively easily.
In above-mentioned fixture for locating inner hole, the outside screw of described connecting portion connects tubular bracing ring, the inner of described elastic portion is positioned at described bracing ring, the outer end of described connecting portion has boss, and the inner side of described bracing ring has the groove and the described boss that match with described boss and is embedded in described groove.By boss, be embedded in groove, make bracing ring and connecting portion have good locating effect, connecting portion is connected by screw thread with bracing ring, has dismounting advantage comparatively easily.
In above-mentioned fixture for locating inner hole, described bracing ring and described elastic portion coaxially arrange.Bracing ring and elastic portion coaxially arrange, and workpiece is had to good locating effect.
In above-mentioned fixture for locating inner hole, described elastic portion is provided with some bar-shaped troughs that run through, and described bar-shaped trough is all positioned at the outside of described bellmouth, and described bar-shaped trough is all along the axis setting of described elastic portion.Bar-shaped trough is positioned at the outside of bellmouth and the axis setting along elastic portion, and when location, larger distortion can occur elastic portion, has good locating effect.
In above-mentioned fixture for locating inner hole, the quantity of described bar-shaped trough is 3-6, and described bar-shaped trough evenly arranges centered by the axis of described elastic portion.Bar-shaped trough quantity 3-6 evenly arrange centered by the axis of elastic portion, make elastic portion deformation uniformly, there is the good advantage of locating effect.
Compared with prior art, this fixture for locating inner hole has the following advantages:
1, the chuck of this fixture for locating inner hole is connected with ring flange screw thread, has dismounting more for convenience, is convenient to different chucks is installed, and makes the use advantage comparatively easily of this fixture for locating inner hole;
2, the taper surface of pull bar and bellmouth lean, and during positioning workpieces, dilatory bar can make elastic portion that deformation occurs comparatively uniformly, makes elastic portion have good locating effect;
3, the inner of pull bar tubular thread bush that has been threaded, has connection advantage comparatively easily;
4, this fixture for locating inner hole also has advantages of simple in structure, easily manufactured.
Accompanying drawing explanation
Fig. 1 is the cross-sectional schematic of this fixture for locating inner hole.
In figure, 1, ring flange; 2, chuck; 2a, connecting portion; 2a1, boss; 2b, elastic portion; 2b1, bellmouth; 3, pull bar; 4, thread bush; 5, bracing ring; 5a, groove; 6, terminal pad.
The specific embodiment
Be below specific embodiment of the utility model by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
As shown in Figure 1, a kind of fixture for locating inner hole, comprise ring flange 1, one side of ring flange 1 is equipped with chuck 2, chuck 2 is connected with ring flange 1 screw thread, and chuck 2 comprises the connecting portion 2a and the tubular elastic portion 2b that are connected with ring flange 1, and elastic portion 2b has bellmouth 2b1 away from one end of connecting portion 2a, chuck 2 is equipped with pull bar 3, and the outer end of pull bar 3 can be resisted against on the hole wall of bellmouth 2b1.
The outside screw of connecting portion 2a connects tubular bracing ring 5, the inner of elastic portion 2b is positioned at bracing ring 5, the outer end of connecting portion 2a has boss 2a1, the inner side of bracing ring 5 has the groove 5a matching with boss 2a1, boss 2a1 is embedded in groove 5a, make bracing ring 5 and connecting portion 2a have good locating effect, connecting portion 2a is connected by screw thread with bracing ring 5, has dismounting advantage comparatively easily.
As another kind of scheme, elastic portion 2b is provided with 3 bar-shaped troughs that run through and 3 bar-shaped troughs evenly arrange centered by the axis of elastic portion 2b.On elastic portion 2b, also can be provided with 6 bar-shaped troughs that run through and 6 bar-shaped troughs evenly settings centered by the axis of elastic portion 2b, make elastic portion 2b there is good elastic effect.
This Internal hole positioning chuck 2 is arranged on by ring flange 1 on the terminal pad 6 of lathe, and the other end of pull bar 3 is connected with the piston rod of cylinder or oil cylinder.During positioning workpieces, the workpiece with endoporus is enclosed within to elastic portion 2b upper, by oil cylinder, drives the translation of pull bar 3 to make the outer end of pull bar 3 act on bellmouth 2b1 and go up and make elastic portion 2b to open, workpiece is positioned on elastic portion 2b.The outside of the bellmouth 2b1 that bar-shaped trough is all positioned at and along the axis setting of elastic portion 2b, when location, elastic portion 2b can occur more greatly and distortion uniformly, has good locating effect.
When unclamping, the piston rod of oil cylinder resets, and the outer end of pull bar 3 departs from bellmouth 2b1, and now elastic portion 2b resets and is convenient to taking off of workpiece.Chuck 2 is connected with ring flange 1 screw thread, has dismounting more for convenience, is convenient to different chuck 2 is installed, and makes the use of this fixture for locating inner hole more for convenience, and meanwhile, this fixture for locating inner hole also has advantages of simple in structure, easily manufactured.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although more used the terms such as ring flange 1, chuck 2, connecting portion 2a, boss 2a1, elastic portion 2b, bellmouth 2b1, pull bar 3, thread bush 4, bracing ring 5, groove 5a, terminal pad 6 herein, do not got rid of the possibility of using other term.Use these terms to be only used to describe more easily and explain essence of the present utility model; They are construed to any additional restriction is all contrary with the utility model spirit.
Claims (7)
1. a fixture for locating inner hole, comprise ring flange (1), it is characterized in that, one side of described ring flange (1) is equipped with chuck (2) and described chuck (2) is connected with described ring flange (1) screw thread, described chuck (2) comprises the connecting portion (2a) and the tubular elastic portion (2b) that are connected with described ring flange (1), described elastic portion (2b) has bellmouth (2b1) away from one end of described connecting portion (2a), the outer end that described chuck (2) is equipped with pull bar (3) and described pull bar (3) can be resisted against on the hole wall of described bellmouth (2b1).
2. fixture for locating inner hole according to claim 1, it is characterized in that, described pull bar (3) outer end has the taper surface matching with described bellmouth (2b1), and described taper surface can be resisted against on the hole wall of described bellmouth (2b1).
3. fixture for locating inner hole according to claim 1 and 2, is characterized in that, the inner of described pull bar (3) tubular thread bush (4) that has been threaded.
4. fixture for locating inner hole according to claim 1 and 2, it is characterized in that, the outside screw of described connecting portion (2a) connects tubular bracing ring (5), the inner of described elastic portion (2b) is positioned at described bracing ring (5), the outer end of described connecting portion (2a) has boss (2a1), and the inner side of described bracing ring (5) has the groove (5a) and the described boss (2a1) that match with described boss (2a1) and is embedded in described groove (5a).
5. fixture for locating inner hole according to claim 4, is characterized in that, described bracing ring (5) coaxially arranges with described elastic portion (2b).
6. fixture for locating inner hole according to claim 4, it is characterized in that, described elastic portion (2b) is provided with some bar-shaped troughs that run through, described bar-shaped trough is all positioned at the outside of described bellmouth (2b1), and described bar-shaped trough is all along the axis setting of described elastic portion (2b).
7. fixture for locating inner hole according to claim 6, is characterized in that, the quantity of described bar-shaped trough is 3-6, and described bar-shaped trough evenly arranges centered by the axis of described elastic portion (2b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320700007.5U CN203579229U (en) | 2013-11-07 | 2013-11-07 | Inner hole positioning clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320700007.5U CN203579229U (en) | 2013-11-07 | 2013-11-07 | Inner hole positioning clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203579229U true CN203579229U (en) | 2014-05-07 |
Family
ID=50577200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320700007.5U Expired - Lifetime CN203579229U (en) | 2013-11-07 | 2013-11-07 | Inner hole positioning clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203579229U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194210A (en) * | 2016-08-01 | 2016-12-07 | 中铁十九局集团第七工程有限公司 | Tunnel lining trolley, method of work and the installation method of pre-pouring grout pipe fixing device |
| CN109514167A (en) * | 2018-12-27 | 2019-03-26 | 江苏大德重工股份有限公司 | Robot welding clamps automechanism with Internal hole positioning |
| CN109759875A (en) * | 2019-02-27 | 2019-05-17 | 常州金球轴承厂 | Cold-extruded tooth shaft lathe finish fixture |
| CN112935423A (en) * | 2021-02-04 | 2021-06-11 | 台州格凌机械股份有限公司 | Be used for gear hole inflation formula anchor clamps |
-
2013
- 2013-11-07 CN CN201320700007.5U patent/CN203579229U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194210A (en) * | 2016-08-01 | 2016-12-07 | 中铁十九局集团第七工程有限公司 | Tunnel lining trolley, method of work and the installation method of pre-pouring grout pipe fixing device |
| CN106194210B (en) * | 2016-08-01 | 2018-07-17 | 中铁十九局集团第七工程有限公司 | The installation method of tunnel lining trolley, working method and pre-pouring grout pipe fixing device |
| CN109514167A (en) * | 2018-12-27 | 2019-03-26 | 江苏大德重工股份有限公司 | Robot welding clamps automechanism with Internal hole positioning |
| CN109759875A (en) * | 2019-02-27 | 2019-05-17 | 常州金球轴承厂 | Cold-extruded tooth shaft lathe finish fixture |
| CN109759875B (en) * | 2019-02-27 | 2021-09-14 | 常州金球轴承厂 | Finish turning clamp for cold extrusion gear shaft |
| CN112935423A (en) * | 2021-02-04 | 2021-06-11 | 台州格凌机械股份有限公司 | Be used for gear hole inflation formula anchor clamps |
| CN112935423B (en) * | 2021-02-04 | 2021-10-22 | 台州格凌机械股份有限公司 | Be used for gear hole inflation formula anchor clamps |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 317602 Qimo Industrial Park, Yuhuan City, Taizhou City, Zhejiang Province Patentee after: Zhejiang Wanbang Automotive Power System Co.,Ltd. Address before: 317602 Qimo Industrial Park, Yuhuan County, Taizhou City, Zhejiang Province Patentee before: ZHEJIANG WANBANG AUTOMOBILE POWER SYSTEM Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140507 |
|
| CX01 | Expiry of patent term |