CN105127317A - Pipe end necking die - Google Patents
Pipe end necking die Download PDFInfo
- Publication number
- CN105127317A CN105127317A CN201510596821.0A CN201510596821A CN105127317A CN 105127317 A CN105127317 A CN 105127317A CN 201510596821 A CN201510596821 A CN 201510596821A CN 105127317 A CN105127317 A CN 105127317A
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- CN
- China
- Prior art keywords
- hole
- clamping head
- housing
- pipe end
- slide block
- 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.)
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Abstract
The invention relates to pipe end necking. A pipe end necking die comprises a drive slider, clamping heads, a shell and a support. The shell is provided with a through hole and a conical hole. The drive slider is arranged in the through hole of the shell and is in sliding fit with the through hole. The clamping heads are conical cylinders, arranged in the conical hole and closely matched with the conical hole. The clamping heads are formed by combining multiple pieces. A through hole is formed in the center of the inside of each clamping head, conical holes are formed in the front ends of the through holes, and cylindrical holes are formed in the rear ends of the through holes. Downward pressure is applied to the drive slider, the clamping heads can be pushed to move in the conical holes and synchronously tightened inwards, and accordingly necking of a pipe is achieved. By means of the scheme, the clamping heads are tightened and apply pressure to the pipe end, so that the pipe does not move relative to the die, and the pipe end of any metal pipe can be necked.
Description
Technical field
The present invention relates to a kind of necking die, particularly relate to a kind of steel pipe throat mould.
Background technology
At present reducing is realized to tubing, main employing machine for shrinking carries out pressure receipts or particular manufacturing craft carries out punching press, machine for shrinking mainly adopts the mode of spinning, spinning is fixed on the mould of spinning machine by dull and stereotyped or hollow blank, while blank is with lathe main axis, with spinning roller or catch up with rod to stress on blank, make it the plastic deformation producing local.Under the feed motion of spinning roller and the rotary motion acting in conjunction of blank, make the plastic deformation of local expand to all surfaces of blank step by step, and be close to mould, complete the rotary pressing processing of part.Spinning is a kind of special manufacturing process.The drawing of various shape rotary body, flange, reducing, the technique such as bulging and crimping can be completed by spin-on process; When relating to some bend pipes, machine for shrinking then can not realize clamping, and bend pipe is rotated; Particular manufacturing craft then needs to be placed on by tubing on patrix or counterdie, is realized the plastic deformation of tubing by the mutual punching press of upper and lower mould, so machine for shrinking and particular manufacturing craft are mainly used for straight tube processing, larger to the restriction of pipe geometry.
Summary of the invention
The technical problem to be solved in the present invention is to provide one and does not limit pipe geometry, the necking die that tubing opposing mold center is motionless in draw process.
For overcoming the above problems, the invention provides a kind of pipe end shrink mouth mould, comprising driving slide block, clamping head, housing and support; Described housing has a through hole and a bellmouth, be respectively housing through-hole and housing taper hole, drive slide block to be arranged in housing through-hole, slide block is driven to be provided with gathering sill, with vertical direction, there is inclination angle, be provided with corresponding with gathering sill convexly to strangle in housing through-hole, be slidably matched with gathering sill; Described clamping head is combined into taper by many lobes lobe body, and inside center forms a through hole, and be clamping head through hole, clamping head through hole front end is taper, and be clamping head taper hole, rear end is cylindrical hole, and clamping head inside is provided with tensioning spring; Described housing is fixedly connected in frame.
Workpiece pipe end is positioned in the clamping head taper hole be formed centrally in clamping head combination block, downward pressure is applied to driving slide block, slide block is driven to move in housing through-hole, in the effect of gathering sill, produce the displacement in certain level direction, promote clamping head to move in housing taper hole, owing to being provided with tensioning spring in clamping head inside, clamping head combination block and housing cone-shaped wall are closely cooperated, realize clamping head synchronously inwardly to tighten up, realize the reducing to pipeline section, after reducing completes, shed load, with jack, clamping head and driving slide block top are returned, just can process next time.
Exert pressure to pipe end because such scheme adopts clamping head to tighten up, realize reducing, do not need tubing to rotate in mould, therefore to pipe geometry not requirement, the pipe end shrink mouth to bend pipe, straight tube can be realized.
Further, driving slide block arranges a cammed surface, and this cammed surface and gathering sill have the inclination angle same with vertical direction; Because gathering sill is less with the convex contact area of strangling of guiding, therefore when bearing immense pressure, is easily destroyed, therefore arranges a cammed surface and can bear main pressure, gathering sill only play the guiding role with convex the strangling of guiding, and this improvement can make structure more stable.
Further, clamping head arranges back-moving spring, automatically reset for clamping head, remove manual reset from.
Further, housing is rack-mount, and there is an intersegmental gap on housing lower end and ground, this gap can eject driving slide block for jack, conveniently lays down load, realizes the reset of clamping head.
Further, the clamping head through hole of clamping head composition, arrange a boss by clamping head taper hole to cylindrical hole transition position, this boss can carry out spacing to tubing, highly can realize controlling to tubing reducing.
Further, clamping head is set to eight lobes, is more conducive to uniform force application, and also do not cause structure too complicated.
Accompanying drawing explanation
Fig. 1 is pipe end shrink mouth mode host visual pattern,
Fig. 2 is pipe end shrink mouth mould left view.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is further described in detail, so that the technical problem solved design of the present invention, the technical characteristic forming technical scheme and the technique effect that brings have further understands.But, it should be noted that to the explanation of these embodiments be schematic, do not form concrete restriction of the present invention.
From Fig. 1 and Fig. 2, pipe end shrink mouth mould is by driving slide block 3, and clamping head 6, housing 2 and support 1 are formed.
Pipe end shrink mouth mould of the present invention, slide block 3 is driven to have a cammed surface, having a through hole up/down perforation in housing 2 inside, is housing through-hole, drives slide block 3 for placement, face corresponding with driving slide block 3 cammed surface in its housing through-hole is also cammed surface, two cammed surface match, and drive two sides on slide block to be provided with gathering sill 31, gathering sill 31 has same inclination angle with cammed surface relative to vertical direction, be provided with convex strangling with gathering sill 31 corresponding position in housing 2 to coordinate with gathering sill 31, realize guide effect.Housing forward end has bellmouth, and be housing taper hole 21, housing taper hole 21 communicates with housing through-hole; Housing taper hole 21 inside is provided with clamping head 6, clamping head 6 is made up of eight independent lobe bodies, and tapered, inside center forms through hole, is clamping head through hole, clamping head through hole inside is provided with tensioning spring 5, clamping head through hole left end is taper hole, and be clamping head taper hole, right-hand member is cylindrical hole, by clamping head taper hole 62, one boss 64 is set to cylindrical hole 63 transition position, in order to carry out spacing to workpiece 8; And every part of clamping head is equipped with back-moving spring 4.Housing 2 is divided into two parts, and two parts are bolted, and to facilitate installation, can reserve an intersegmental gap when installation 2 housing between housing 2 bottom and ground, to drive slide block 3 to reset.
The end of workpiece 8 is placed in clamping head taper hole that clamping head 6 is combined into, and workpiece 8 port pushes up clamping head taper hole 62 with on the boss 64 of cylindrical hole 63 transition position always, pressure is applied to driving slide block 3 with press, slide block 3 is driven to move downward, under the effect of cammed surface and gathering sill 31, drive slide block 3 can produce certain anterior displacement, travel forward to promote clamping head 6, under the effect of housing taper hole 21, clamping head 6 inwardly shrinks, thus realize moulding to workpiece 8 end, realize reducing object; After reducing completes, shed press load, jack-up and drive slide block 3, accommodate after head resets under the effect of tensioning spring 5 and back-moving spring 4, just can carry out the processing of reducing next time.
Claims (6)
1. a pipe end shrink mouth mould, comprising: drive slide block, clamping head, housing and support; It is characterized in that, described housing has a through hole and a bellmouth, be respectively housing through-hole and housing taper hole, slide block is driven to be arranged in housing through-hole, slide block is driven to be provided with gathering sill, with vertical direction, there is inclination angle, be provided with corresponding with gathering sill convexly to strangle in housing through-hole, be slidably matched with gathering sill; Described clamping head is combined into taper by many lobes lobe body, and inside center forms clamping head through hole, and clamping head through hole front end is tapered, and be clamping head taper hole, rear end is cylindrical hole, and clamping head is arranged in housing taper hole, and clamping head inside is provided with tensioning spring; Described housing is fixedly connected in frame.
2. pipe end shrink mouth mould according to claim 1, it is characterized in that, described driving slide block has a cammed surface, and this cammed surface and gathering sill have the inclination angle same with vertical direction.
3. pipe end shrink mouth mould according to claim 1, is characterized in that, described clamping head is provided with back-moving spring.
4. pipe end shrink mouth mould according to claim 1, is characterized in that, described housing is rack-mount, and there is an intersegmental gap on housing lower end and ground.
5. pipe end shrink mouth mould according to claim 1, is characterized in that, the clamping head through hole of described clamping head composition, has a boss by clamping head taper hole to cylindrical hole transition position.
6. pipe end shrink mouth mould according to claim 1, is characterized in that, described clamping head is set to eight lobes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510596821.0A CN105127317A (en) | 2015-09-18 | 2015-09-18 | Pipe end necking die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510596821.0A CN105127317A (en) | 2015-09-18 | 2015-09-18 | Pipe end necking die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105127317A true CN105127317A (en) | 2015-12-09 |
Family
ID=54713075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510596821.0A Pending CN105127317A (en) | 2015-09-18 | 2015-09-18 | Pipe end necking die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105127317A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109663864A (en) * | 2018-12-21 | 2019-04-23 | 冯光芬 | A kind of ductule tip machine particular manufacturing craft |
| CN111203487A (en) * | 2020-01-09 | 2020-05-29 | 徐寿强 | Combined cone attached inclination angle necking machine |
-
2015
- 2015-09-18 CN CN201510596821.0A patent/CN105127317A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109663864A (en) * | 2018-12-21 | 2019-04-23 | 冯光芬 | A kind of ductule tip machine particular manufacturing craft |
| CN109663864B (en) * | 2018-12-21 | 2021-01-12 | 冯光芬 | Special die for small catheter tip machine |
| CN111203487A (en) * | 2020-01-09 | 2020-05-29 | 徐寿强 | Combined cone attached inclination angle necking machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151209 |