CN104525997A - Pipe fitting inside expansion clamping device - Google Patents
Pipe fitting inside expansion clamping device Download PDFInfo
- Publication number
- CN104525997A CN104525997A CN201410813732.2A CN201410813732A CN104525997A CN 104525997 A CN104525997 A CN 104525997A CN 201410813732 A CN201410813732 A CN 201410813732A CN 104525997 A CN104525997 A CN 104525997A
- Authority
- CN
- China
- Prior art keywords
- pipe fitting
- positioning tube
- frustums
- place kick
- holes
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/40—Expansion mandrels
- B23B31/404—Gripping the work or tool by jaws moving radially controlled by conical surfaces
Abstract
The invention discloses a pipe fitting inside expansion clamping device which comprises a positioning cylinder. The side wall of the positioning cylinder is provided with two sets of through holes, the centers of each set of the through holes are located on the same circumference, the circle center of the circumference is located on the axis line of the positioning cylinder, positioning balls are arranged in the through holes and in clearance fit with the through holes, and the diameter of the positioning balls is larger than the depth of the through holes; two conical tables are arranged in the positioning cylinder and face the same direction, both the big diameter ends of the two conical tables make contact with the inner wall of the positioning cylinder, the two conical tables abut against the positioning balls in the two sets of through holes respectively, a connection rod is arranged between the two conical tables, the small diameter ends, located on the outer sides of the conical tables, of the two conical tables are connected with a pull rod, and the pull rod stretches out of the positioning cylinder. The pipe fitting inside expansion clamping device overcomes the technical defects that a pipe fitting is easy to fracture when an existing pipe fitting clamp clamps the pipe fitting, and the existing pipe fitting clamp cannot finish pipe fitting outer wall machining at a time and achieves the purposes that the pipe fitting is not prone to fracture when the pipe fitting is clamped, and pipe fitting outer wall machining can be finished at a time.
Description
Technical field
The invention belongs to field of machining, be specifically related to swelling clamping device in a kind of pipe fitting.
Background technology
Usually pipe fitting can be used in device assembles process; in order to coordinate better with other equipment, be connected; usually need to process the outer wall of pipe fitting, the clamping device usually used during processing pipe fitting is at present jaw, directly with the outer wall of jaw clamping pipe fitting during enforcement.But, because the sidewall of pipe fitting is usually all thinner, when clamping the pipe fitting outer wall of hollow with jaw, if firmly excessive, easily makes the sidewall rupture of pipe fitting, if firmly too small, pipe fitting cannot be clamped again; In addition, man-hour is being added to pipe fitting, usually the whole outer wall processing to pipe fitting is needed, as on the sidewall of pipe fitting machining shaft to groove etc., but the outer wall of pipe fitting can be sheltered from when clamping pipe fitting due to jaw, make the processing that once cannot complete whole outer wall, and must by the dismounting of processing midway and again clamping just can complete the processing of the whole outer wall of pipe fitting, complicated operation, efficiency is low.
Summary of the invention
The technical problem to be solved in the present invention easily causes tube burst for during existing pipe casting clamp clamping pipe fitting, and once can not complete the technological deficiency of pipe fitting outer wall processing, there is provided during a kind of clamping pipe fitting and not easily cause tube burst, and swelling clamping device in the pipe fitting that once can complete the processing of pipe fitting outer wall.
In order to solve the problems of the technologies described above, the invention provides following technical scheme: swelling clamping device in pipe fitting, comprise positioning tube, the sidewall of positioning tube is provided with two groups of through holes, the hole heart often organizing through hole is positioned at circumferentially same, and the center of circle of described circumference is positioned on the axial line of positioning tube, is provided with place kick in through hole, place kick coordinates with via clearance, and the diameter of place kick is greater than the degree of depth in hole; Two frustums are provided with in positioning tube, two frustums towards unanimously, the bigger diameter end of two frustums and the contact internal walls of positioning tube, two frustums offset with the place kick in two groups of through holes respectively, connecting rod is provided with between two frustums, miner diameter end outside being positioned in two frustums is connected with pull bar, and pull bar extends to outside positioning tube, and end pull bar being positioned at positioning tube is also provided with the locking nut for locking pull bar.
Swelling clamping device in the pipe fitting of employing technical solution of the present invention, comprise positioning tube, positioning tube is main body of the present invention, pipe fitting is sheathed on positioning tube, two groups of through holes on the sidewall of positioning tube, through hole is used for carrying out spacing to place kick, the hole heart often organizing through hole is positioned at circumferentially same, the circumference at two groups of through hole places is different, thus the pipe fitting stress equalization that is sheathed on positioning tube can be made, place kick is provided with in through hole, place kick is used for being held out against by pipe fitting from the inner side of pipe fitting, thus pipe fitting is located, place kick coordinates with via clearance, thus place kick can be slided in through hole, the diameter of place kick is greater than the degree of depth of through hole, thus can guarantee that place kick both offseted with frustum, offset with pipe fitting again, two frustums are provided with in positioning tube, frustum is prune the cone on top, frustum is used for place kick being pushed against from inner side, thus realize place kick and from inner side, pipe fitting is pushed against, two frustums towards unanimously, thus pull pull bar can realize two frustums to offset with the place kick in two groups of through holes respectively, the bigger diameter end of two frustums all with the contact internal walls of positioning tube, thus frustum can in the endoporus of positioning tube smooth sliding, and then make place kick steadily can hold out against pipe fitting, connecting rod is provided with between two frustums, thus only two frustums firmly can need be pulled to move to a frustum, miner diameter end outside being positioned in two frustums is connected with pull bar, pull bar is used for exerting oneself to frustum, make to slide in the endoporus of frustum and positioning tube, pull bar is also provided with locking nut, locking nut is for locking pull bar, thus stable position is carried out to pipe fitting.
Technique effect of the present invention is: because pipe fitting is sheathed on positioning tube, and pipe fitting is held out against location from the inner side of pipe fitting by positioning tube and place kick, and pipe fitting and place kick can give positioning tube and support, thus pipe fitting can be avoided to break because of stressed; In addition, because whole pipe fitting is sheathed on positioning tube, do not shelter from the outer wall of pipe fitting when positioning tube and place kick are located pipe fitting, thus pipe fitting outer wall can be made to process at one time, avoid dismounting and again clamping halfway, simple to operate, efficiency is high.
Further, described place kick is steel ball, and the outside of steel ball is coated with rubber layer.Ball hardness is high, intensity is large, to the good positioning effect of pipe fitting, and rubber layer good springiness, thus pipe fitting and place kick when place kick and pipe fitting inner wall offset, can be avoided to skid.
Further, be provided with two baffle rings in described through hole, the centre of sphere of place kick is between two baffle rings.Baffle ring can avoid in steel ball landing to the endoporus of positioning tube or landing to outside positioning tube.
Further, the bigger diameter end of described frustum is provided with slide post, the outer wall of slide post and the contact internal walls of positioning tube, and is arc-shaped transition between slide post and frustum.Increase the distance between frustum and positioning tube inwall, thus can avoid frustum that positioning tube inwall is scraped damage.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, technical solution of the present invention is further illustrated:
Fig. 1 is the schematic diagram of swelling clamping device embodiment in pipe fitting of the present invention.
Detailed description of the invention
Wherein: pull bar 1, locking nut 2, positioning tube 3, pipe fitting 4, place kick 5, through hole 6, frustum 7, slide post 8.
As shown in Figure 1, swelling device in pipe fitting 4 of the present invention, comprise positioning tube 3, positioning tube 3 is laterally placed, the sidewall of positioning tube 3 is provided with eight through holes 6, the hole heart of eight through holes 6 is distributed in two circumferentially, eachly circumferentially comprise four through holes 6, and four through holes 6 are along its place even circumferential distribution, the center of circle of described two circumference is all positioned on the axial line of positioning tube 3, place kick 5 is provided with in through hole 6, place kick 5 is steel ball, the outside of steel ball is coated with rubber layer, place kick 5 and through hole 6 matched in clearance, the diameter of place kick 5 is greater than the degree of depth of through hole 6, two baffle rings are also provided with in through hole 6, the centre of sphere of place kick 5 is between two baffle rings, two frustums 7 are provided with in positioning tube 3, the bigger diameter end of two frustums 7 is all towards right side, the bigger diameter end of two frustums 7 is equipped with slide post 8, the outer wall of slide post 8 and the contact internal walls of positioning tube 3, and be arc-shaped transition between slide post 8 and frustum 7, the outer wall of two frustums 7 offsets with the place kick 5 in two through holes 6 circumferentially respectively, connecting rod is provided with between slide post 8 in left side and frustum 7 miner diameter end on right side, connecting rod and slide post 8, connecting rod is with frustum 7 and is threaded, and the frustum 7 miner diameter end end being positioned at left side is provided with pull bar 1, pull bar 1 extends to outside positioning tube 3, and end pull bar 1 being positioned at positioning tube 3 is also provided with nut 2 in one's power, nut 2 is for locking pull bar 1 in one's power.
In specific implementation process, pipe fitting 4 is sheathed on positioning tube 3, pull pull bar 1 left, two frustums 7 are moved to the left together, until two frustums 7 hold out against two place kick 5 circumferentially in through hole 6 respectively, use nut 2 in one's power to be locked by pull bar 1 in the left end of positioning tube 3 again, thus realize the location to pipe fitting 4, can process the outer wall of pipe fitting 4; After process finishing, unscrew nut 2 in one's power, take out nut 2 in one's power, move right pull bar 1, the pipe fitting 4 processed can be taken off.
Certainly, can increase the quantity of place kick 5 and the quantity of frustum 7 according to the length of pipe fitting 4, to make pipe fitting 4 stress equalization, these are all in protection scope of the present invention.
For a person skilled in the art, under the prerequisite not departing from structure of the present invention, can also make some distortion and improvement, these also should be considered as protection scope of the present invention, and these all can not affect effect of the invention process and practical applicability.
Claims (4)
1. swelling clamping device in pipe fitting, it is characterized in that: comprise positioning tube, the sidewall of positioning tube is provided with two groups of through holes, the hole heart often organizing through hole is positioned at circumferentially same, the center of circle of described circumference is positioned on the axial line of positioning tube, be provided with place kick in through hole, place kick coordinates with via clearance, and the diameter of place kick is greater than the degree of depth of through hole; Two frustums are provided with in positioning tube, two frustums towards unanimously, the bigger diameter end of two frustums all with the contact internal walls of positioning tube, two frustums offset with the place kick in two groups of through holes respectively, connecting rod is provided with between two frustums, miner diameter end outside being positioned in two frustums is connected with pull bar, and pull bar extends to outside positioning tube, and end pull bar being positioned at positioning tube is also provided with the locking nut for locking pull bar.
2. swelling clamping device in pipe fitting as claimed in claim 1, is characterized in that: described place kick is steel ball, and the outside of steel ball is coated with rubber layer.
3. swelling clamping device in pipe fitting as claimed in claim 2, it is characterized in that: be provided with two baffle rings in described through hole, the centre of sphere of place kick is between two baffle rings.
4. swelling clamping device in pipe fitting as claimed in claim 3, is characterized in that: the bigger diameter end of described frustum is provided with slide post, the outer wall of slide post and the contact internal walls of positioning tube, and is arc-shaped transition between slide post and frustum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410813732.2A CN104525997A (en) | 2014-12-24 | 2014-12-24 | Pipe fitting inside expansion clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410813732.2A CN104525997A (en) | 2014-12-24 | 2014-12-24 | Pipe fitting inside expansion clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104525997A true CN104525997A (en) | 2015-04-22 |
Family
ID=52841728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410813732.2A Pending CN104525997A (en) | 2014-12-24 | 2014-12-24 | Pipe fitting inside expansion clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104525997A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105345055A (en) * | 2015-11-12 | 2016-02-24 | 贵州凯星液力传动机械有限公司 | Clamping device suitable for thin-wall cylinder |
| CN106737786A (en) * | 2017-02-15 | 2017-05-31 | 东莞市圣荣自动化科技有限公司 | A kind of rotor hot jacket mechanical grip pipe |
| CN107654592A (en) * | 2017-10-16 | 2018-02-02 | 镇江市金鼎变速箱有限公司 | It is a kind of to be switched fast without the transfer case rushed |
| CN107803685A (en) * | 2017-12-01 | 2018-03-16 | 沈阳中之杰流体控制系统有限公司 | Cylinder barrel Special Fixture for Machining |
| CN107866737A (en) * | 2017-12-04 | 2018-04-03 | 广东利迅达机器人系统股份有限公司 | A kind of robot clamp of fire-fighting door closer sanding and polishing |
| CN107877419A (en) * | 2017-12-10 | 2018-04-06 | 无锡特恒科技有限公司 | Quick clip steel ball tension mechanism |
| CN108818346A (en) * | 2018-07-05 | 2018-11-16 | 郭芬 | Clamping device |
| CN108838278A (en) * | 2018-07-23 | 2018-11-20 | 太原科技大学 | It is a kind of for forming the vertical punching mould of motor casing label |
| CN109128910A (en) * | 2018-10-09 | 2019-01-04 | 莱芜环球汽车零部件有限公司 | A kind of guiding orientation clamping device |
| CN109396907A (en) * | 2018-11-05 | 2019-03-01 | 刘剑 | Hydraulic expansion device |
| CN111992750A (en) * | 2020-08-26 | 2020-11-27 | 常州机电职业技术学院 | Wedge type external expansion lathe fixture for outer circle of aluminum piston |
| CN112247607A (en) * | 2020-10-14 | 2021-01-22 | 常州工程职业技术学院 | Thin-wall part turning clamp |
| CN114074261A (en) * | 2020-08-20 | 2022-02-22 | 广西汽车集团有限公司 | Sleeve adds clamping apparatus and clamping device |
-
2014
- 2014-12-24 CN CN201410813732.2A patent/CN104525997A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105345055A (en) * | 2015-11-12 | 2016-02-24 | 贵州凯星液力传动机械有限公司 | Clamping device suitable for thin-wall cylinder |
| CN106737786B (en) * | 2017-02-15 | 2018-12-28 | 徐敏君 | A kind of rotor hot jacket mechanical grip pipe |
| CN106737786A (en) * | 2017-02-15 | 2017-05-31 | 东莞市圣荣自动化科技有限公司 | A kind of rotor hot jacket mechanical grip pipe |
| CN107654592A (en) * | 2017-10-16 | 2018-02-02 | 镇江市金鼎变速箱有限公司 | It is a kind of to be switched fast without the transfer case rushed |
| CN107803685A (en) * | 2017-12-01 | 2018-03-16 | 沈阳中之杰流体控制系统有限公司 | Cylinder barrel Special Fixture for Machining |
| CN107866737A (en) * | 2017-12-04 | 2018-04-03 | 广东利迅达机器人系统股份有限公司 | A kind of robot clamp of fire-fighting door closer sanding and polishing |
| CN107877419A (en) * | 2017-12-10 | 2018-04-06 | 无锡特恒科技有限公司 | Quick clip steel ball tension mechanism |
| CN108818346A (en) * | 2018-07-05 | 2018-11-16 | 郭芬 | Clamping device |
| CN108838278A (en) * | 2018-07-23 | 2018-11-20 | 太原科技大学 | It is a kind of for forming the vertical punching mould of motor casing label |
| CN109128910A (en) * | 2018-10-09 | 2019-01-04 | 莱芜环球汽车零部件有限公司 | A kind of guiding orientation clamping device |
| CN109396907A (en) * | 2018-11-05 | 2019-03-01 | 刘剑 | Hydraulic expansion device |
| CN114074261A (en) * | 2020-08-20 | 2022-02-22 | 广西汽车集团有限公司 | Sleeve adds clamping apparatus and clamping device |
| CN111992750A (en) * | 2020-08-26 | 2020-11-27 | 常州机电职业技术学院 | Wedge type external expansion lathe fixture for outer circle of aluminum piston |
| CN111992750B (en) * | 2020-08-26 | 2021-07-30 | 常州机电职业技术学院 | Wedge type external expansion lathe fixture for outer circle of aluminum piston |
| CN112247607A (en) * | 2020-10-14 | 2021-01-22 | 常州工程职业技术学院 | Thin-wall part turning clamp |
| CN112247607B (en) * | 2020-10-14 | 2022-05-17 | 常州工程职业技术学院 | Thin-wall part turning clamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150422 |
|
| WD01 | Invention patent application deemed withdrawn after publication |