CN104001721A - Ejection head quick-changing connecting sleeve of perforating machine - Google Patents
Ejection head quick-changing connecting sleeve of perforating machine Download PDFInfo
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- CN104001721A CN104001721A CN201310056396.7A CN201310056396A CN104001721A CN 104001721 A CN104001721 A CN 104001721A CN 201310056396 A CN201310056396 A CN 201310056396A CN 104001721 A CN104001721 A CN 104001721A
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- sleeve
- adapter sleeve
- connecting sleeve
- expansion block
- ejection head
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Abstract
An ejection head quick-changing connecting sleeve of a perforating machine is provided with a connecting sleeve and is characterized in that three evenly-distributed open grooves are formed in the front end of the connecting sleeve to form a three-claw structure, a rotating sleeve is installed outside the connecting sleeve, a tapered pipe is installed in the connecting sleeve, and anti-loosening nuts are installed at the front ends of three claws of the connecting sleeve. A guiding pin is installed at the tail portion of the tapered pipe and penetrates a guiding slotted hole in the connecting sleeve to be arranged in a spiral guiding groove in the rotating sleeve. Three ejection head connecting expansion blocks are embedded into three open grooves in the front end of the connecting sleeve, the front ends of the ejection head connecting expansion blocks form a round outer-threaded connector, the inner wall face of the connector is in matched connection with a tapered head of the tapered pipe, and a tapered groove is formed in the outer circumferential face of the tapered pipe. A convex block is designed at a rear section of the outer wall of each ejection head connecting expansion block, and a wedge-shaped arc groove is designed on each corresponding convex block on the rotating sleeve. The problem that an ejection head is difficult to dismount and large in labor intensity and the like in the steel pipe production process, and the ejection head quick-changing connecting sleeve of the perforating machine is suitable for large, medium and small sized steel pipe plants in our country.
Description
Technical field
The present invention relates to steel pipe's production process equipment frock, especially a kind of piercing mandrel plug quick-change connected set.
Background technology
In steel pipe's production processing, top is to be connected with the push rod of punch by a generic connectivity cover, and existing adapter sleeve one end is provided with internal thread and is connected with the push rod of punch, and the other end is provided with external screw thread and is connected with top, due to need of production, top needs often to change.And adopt existing adapter sleeve, the stressed rear very difficult dismounting of top perforation, so just adopting the additional sleeve pipe of pipe wrench and hammer to knock, workman makes the good dismounting in the loosening to some extent side of screw thread, labour intensity is large, dismounting is slow, and little unit is wanted about 5 minutes by instrument, and large unit is wanted 10-30 minute, therefore have a strong impact on production effect, increased labor strength.
Summary of the invention
Object of the present invention is exactly will solve existing piercing mandrel plug to dismantle difficult problem, and a kind of piercing mandrel plug quick-change connected set is provided.
Concrete scheme of the present invention is: a kind of piercing mandrel plug quick-change connected set, there is adapter sleeve, the afterbody outer wall of adapter sleeve is designed with protruding step, and be provided with internal thread at afterbody, it is characterized in that: the front end at adapter sleeve is shaped with three uniform open slots, form three-jaw structure, front end at three-jaw is shaped with one section of external screw thread, path section at adapter sleeve is equipped with rotary sleeve outward, conical pipe is inside housed, the front end of this conical pipe is conical head, and rear portion is cylinder, and at the three-jaw thread segment of adapter sleeve, screwed retaining ring is housed; Afterbody at conical pipe is equipped with a guide finger, on adapter sleeve, over against guide finger, have axial straight line gathering sill hole, at rotary sleeve inwall, over against guide finger, be provided with one section of spiral guide slot, guide finger is through the guiding slotted eye juxtaposition on adapter sleeve in the spiral guide slot on rotary sleeve; In three open slots of adapter sleeve front end, be embedded with three tops and connect expansion block, three tops connect the outside that expansion block front end all extends adapter sleeve, three tops connect a circular external screw thread connector of outer section of composition of expansion block, the conical head that the internal face of this external screw thread connector forms bellmouth and conical pipe is connected, the tail end inwall that connects expansion block in each top is provided with arc step surface, coincide with the periphery of conical pipe, and on conical pipe periphery, be positioned at the front end that top connects expansion block arc step surface and offer one section of cone tank; On the outer wall of each top connection expansion block, be positioned at back segment and be designed with a projection, on the inwall of rotary sleeve, corresponding each projection is designed with one section along the wedge shape arc groove of circumferential arrangement.
For guaranteeing that top connects expansion block and can not come off at work, described in the present invention, on adapter sleeve, the bottom design of each open slot is oat tail groove structure, and the afterbody that corresponding each top connects expansion block is designed to dovetail structure.
For making top connect expansion block, shrink steadily, the conical head described in the present invention on conical pipe and the tapering of cone tank equate.
For guaranteeing working stability of the present invention, can arbitrarily not unclamp and come off, the present invention has a locating hole on rotary sleeve tail end face, on adapter sleeve, over against the locating hole on rotary sleeve, have an axial slide, sliding pin and return spring are housed in chute, and on adapter sleeve, over against axial slide middle part, have a radially slotted eye, be equipped with one and stir pin on sliding pin, this is stirred pin and is arranged in radially slotted eye.And radially lock-screw is housed on screwed retaining ring.
For convenience of operation, the present invention is shaped with annular knurl at rotary sleeve outer wall.
Operation principle of the present invention is: under original state, referring to Fig. 1, conical pipe place foremost position, push away three tops and connect expansion block in the position that swells, the front end of the guide finger place rotary sleeve spiral guide slot being wherein connected with conical pipe, the projection that top connects in expansion block is in darker one end of wedge shape arc groove on rotary sleeve, and sliding pin is inserted in the locating hole on rotary sleeve, makes rotary sleeve location.Top rotation is contained in to three tops and connects on the external screw thread connector that the outer section of expansion blocks forms, and tighten (after work, top can be twisted tightlyer automatically).When needs are changed dismounting top, first by stirring pin, make sliding pin retreat disengaging rotary sleeve locating hole, turn rotary sleeve, after helicla flute effect on rotary sleeve, by guide finger, drive conical pipe to retreat on the one hand, wedge shape arc groove on rotary sleeve from depth to shallow on the other hand, by projection, oppressing three top connection expansion blocks inwardly shrinks, the conical head conical surface of the front end edge conical pipe of each top connection expansion block steadily shrinks simultaneously, the tail end that each top connects expansion block steadily shrinks along the cone tank on conical pipe, such three tops connect the external screw thread connector reduced that expansion block leading portion forms, unclamp with the nature that coordinates of top, thereby can easy and conveniently pull down top.
The present invention designs ingenious, swift and convenient to operate, no matter comes directly towards and comes directly towards how tight be connected the external screw thread connector assembling that expansion block forms, and can easily pull down fast (generally less than one minute, can pull down top).
Accompanying drawing explanation
Fig. 1 is the main cutaway view of general structure of the present invention;
Fig. 2 is the perspective view of adapter sleeve;
Fig. 3 is the front view of adapter sleeve;
Fig. 4 is the front view of rotary sleeve;
Fig. 5 is the A-A view of Fig. 4;
Fig. 6 is the assembled state schematic perspective view that three tops connect expansion block;
Fig. 7 is the front view that a top connects expansion block;
Fig. 8 is the left cutaway view that a top connects expansion block.
In figure: 1-internal thread, 2-step, 3-adapter sleeve, the 4-slotted eye that leads, 5-spiral guide slot, 6-guide finger, 7-rotary sleeve, 8-arc step surface, 9-cone tank, 10-wedge shape arc groove, 11-projection, 12-top connects expansion block, 13-screwed retaining ring, 14-conical pipe, 15-conical head, 16-bellmouth, 17-external screw thread connector, 18-is lock-screw radially, 19-locating hole, 20-sliding pin, 21-stirs pin, 22-is slotted eye radially, 23-return spring, 24-axial slide, 25-open slot, 26-three-jaw structure, 27-three-jaw thread segment, 28-oat tail groove structure, 29-dovetail structure.
The specific embodiment
Referring to Fig. 1, the present invention has adapter sleeve 3, the afterbody outer wall of adapter sleeve 3 is designed with protruding step 2, and be provided with internal thread 1 at afterbody, particularly: the front end at adapter sleeve 3 is shaped with three uniform open slots 25, form three-jaw structure 26, referring to Fig. 2,3, front end at three-jaw is shaped with one section of external screw thread, path section at adapter sleeve 3 is equipped with rotary sleeve 7 outward, and conical pipe 14 is inside housed, and the front end of this conical pipe 14 is conical head 15, rear portion is cylinder, and at the three-jaw thread segment 27 of adapter sleeve 3, screwed retaining ring 13 is housed, afterbody at conical pipe 14 is equipped with a guide finger 6, on adapter sleeve 3, over against guide finger 6, have axial straight line gathering sill hole 4, at rotary sleeve 7 inwalls, over against guide finger 6, be provided with one section of spiral guide slot 5, referring to Fig. 4,5, guide finger 6 is through the guiding slotted eye 4 on adapter sleeve 3 and be placed in the spiral guide slot 5 on rotary sleeve 7, in three open slots 25 of adapter sleeve 3 front ends, be embedded with three tops and connect expansion block 12, three tops connect the outside that expansion block 12 front ends all extend adapter sleeve 3, three tops connect a circular external screw thread connector 17 of outer section of composition of expansion block 12, referring to Fig. 6, 7, 8, the internal face of this external screw thread connector 17 forms bellmouth 16 and is connected with the conical head 15 of conical pipe 14, the tail end inwall that connects expansion block 12 in each top is provided with arc step surface 8, coincide with the periphery of conical pipe 14, and the front end that is positioned at top connection expansion block 12 arc step surfaces 8 on conical pipe 14 peripheries offers one section of cone tank 9, on the outer wall of each top connection expansion block 12, be positioned at back segment and be designed with a projection 11, on the inwall of rotary sleeve 7, corresponding each projection 11 is designed with one section along the wedge shape arc groove 10 of circumferential arrangement, (referring to Fig. 4,5).
In the present embodiment, on all adapter sleeves 3, the bottom design of each open slot 25 is oat tail groove structure 28, and the afterbody that corresponding each top connects expansion block 12 is designed to dovetail structure 29, referring to Fig. 6,7,8.
Both taperings of conical head 15 on conical pipe described in the present embodiment 14 and cone tank 9 equate.
In the present embodiment, on rotary sleeve 7 tail end faces, have a locating hole 19, on adapter sleeve 3, over against the locating hole 19 on rotary sleeve 7, have an axial slide 24, sliding pin 20 and return spring 23 are housed in chute, and on adapter sleeve 3, over against axial slide 24 middle parts, have a radially slotted eye 22, on sliding pin 20, be equipped with one and stir pin 21, this is stirred pin 21 and is arranged in radially slotted eye 22, referring to Fig. 1.
Radially lock-screw 18 is also housed in the present embodiment on screwed retaining ring 13.
In the present embodiment, at rotary sleeve 7 outer walls, be shaped with annular knurl.
Claims (6)
1. piercing mandrel plug quick-change connected set, have adapter sleeve, the afterbody outer wall of adapter sleeve is designed with protruding step, and is provided with internal thread at afterbody, it is characterized in that: the front end at adapter sleeve is shaped with three uniform open slots, form three-jaw structure, at the front end of three-jaw, be shaped with one section of external screw thread, in the path section of adapter sleeve, rotary sleeve is housed outward, conical pipe is inside housed, the front end of this conical pipe is conical head, and rear portion is cylinder, and at the three-jaw thread segment of adapter sleeve, screwed retaining ring is housed; Afterbody at conical pipe is equipped with a guide finger, on adapter sleeve, over against guide finger, have axial straight line gathering sill hole, at rotary sleeve inwall, over against guide finger, be provided with one section of spiral guide slot, guide finger is through the guiding slotted eye juxtaposition on adapter sleeve in the spiral guide slot on rotary sleeve; In three open slots of adapter sleeve front end, be embedded with three tops and connect expansion block, three tops connect the outside that expansion block front end all extends adapter sleeve, three tops connect a circular external screw thread connector of outer section of composition of expansion block, the conical head that the internal face of this external screw thread connector forms bellmouth and conical pipe is connected, the tail end inwall that connects expansion block in each top is provided with arc step surface, coincide with the periphery of conical pipe, and on conical pipe periphery, be positioned at the front end that top connects expansion block arc step surface and offer one section of cone tank; On the outer wall of each top connection expansion block, be positioned at back segment and be designed with a projection, on the inwall of rotary sleeve, corresponding each projection is designed with one section along the wedge shape arc groove of circumferential arrangement.
2. piercing mandrel plug quick-change connected set according to claim 1, is characterized in that: on all adapter sleeves, the bottom design of each open slot is oat tail groove structure, and the afterbody that corresponding each top connects expansion block is designed to dovetail structure.
3. piercing mandrel plug quick-change connected set according to claim 1, is characterized in that: the conical head on described conical pipe and the tapering of cone tank equate.
4. piercing mandrel plug quick-change connected set according to claim 1, it is characterized in that: on rotary sleeve tail end face, have a locating hole, on adapter sleeve, over against the locating hole on rotary sleeve, have an axial slide, sliding pin and return spring are housed in chute, and over against axial slide middle part, have a radially slotted eye on adapter sleeve, on sliding pin, be equipped with one and stir pin, this is stirred pin and is arranged in radially slotted eye.
5. piercing mandrel plug quick-change connected set according to claim 1, is characterized in that: radially lock-screw is housed on screwed retaining ring.
6. piercing mandrel plug quick-change connected set according to claim 1, is characterized in that: at rotary sleeve outer wall, be shaped with annular knurl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310056396.7A CN104001721A (en) | 2013-02-22 | 2013-02-22 | Ejection head quick-changing connecting sleeve of perforating machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310056396.7A CN104001721A (en) | 2013-02-22 | 2013-02-22 | Ejection head quick-changing connecting sleeve of perforating machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104001721A true CN104001721A (en) | 2014-08-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310056396.7A Pending CN104001721A (en) | 2013-02-22 | 2013-02-22 | Ejection head quick-changing connecting sleeve of perforating machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104001721A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106595543A (en) * | 2016-12-01 | 2017-04-26 | 江西中船航海仪器有限公司 | Revolution precision measuring device used for inner support type shafting and connected with hollow shafting |
| CN109085051A (en) * | 2018-08-06 | 2018-12-25 | 嘉兴中诚工程检测有限公司 | Injection type mortar strength detector |
| CN112222877A (en) * | 2020-08-25 | 2021-01-15 | 江苏森威精锻有限公司 | Large-stroke internal expanding clamp for machining long hollow shaft |
-
2013
- 2013-02-22 CN CN201310056396.7A patent/CN104001721A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106595543A (en) * | 2016-12-01 | 2017-04-26 | 江西中船航海仪器有限公司 | Revolution precision measuring device used for inner support type shafting and connected with hollow shafting |
| CN109085051A (en) * | 2018-08-06 | 2018-12-25 | 嘉兴中诚工程检测有限公司 | Injection type mortar strength detector |
| CN112222877A (en) * | 2020-08-25 | 2021-01-15 | 江苏森威精锻有限公司 | Large-stroke internal expanding clamp for machining long hollow shaft |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140827 |