CN104475583A - Necking die for pipe - Google Patents

Necking die for pipe Download PDF

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Publication number
CN104475583A
CN104475583A CN201410794328.5A CN201410794328A CN104475583A CN 104475583 A CN104475583 A CN 104475583A CN 201410794328 A CN201410794328 A CN 201410794328A CN 104475583 A CN104475583 A CN 104475583A
Authority
CN
China
Prior art keywords
die
pipe
fixed cover
mould base
convex mould
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
Application number
CN201410794328.5A
Other languages
Chinese (zh)
Inventor
李欢
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHONGQING YANLAN TECHNOLOGY Co Ltd
Original Assignee
CHONGQING YANLAN TECHNOLOGY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CHONGQING YANLAN TECHNOLOGY Co Ltd filed Critical CHONGQING YANLAN TECHNOLOGY Co Ltd
Priority to CN201410794328.5A priority Critical patent/CN104475583A/en
Publication of CN104475583A publication Critical patent/CN104475583A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00Tools as parts of machines covered by this subclass
    • B21D37/10Die sets; Pillar guides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D41/00Application of procedures in order to alter the diameter of tube ends
    • B21D41/04Reducing; Closing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/003Positioning devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

The invention relates to a die and specifically relates to a necking die for a pipe. The necking die for the pipe comprises a concave die base, wherein a driving mechanism is connected with the concave die base; a concave die fixing plate is fixed under the concave die base; external threads are arranged on an outer wall of the concave die fixing plate; a detachably connected fixing sleeve sleeves the concave die fixing plate; a concave die block is blocked by the fixing sleeve matched with a die slot in the middle of the concave die fixing plate; a stamping through hole is formed in the bottom of the concave die block; an unloading push rod is arranged above the stamping through hole; a convex die base is arranged under the concave die base; a punch matched with a punching slot is arranged on the middle part of the convex die base; a fixing slot is formed in the convex die base on the position of the punch. The invention aims to provide the necking die used for stamping pipe blanks in various sizes.

Description

Pipe reducing die
Technical field
The present invention relates to a kind of mould, be specifically related to a kind of pipe reducing die.
Background technology
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, makes 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.
In the prior art, adopt the mode of spinning to carry out necking forming to the pipe blank shown in Fig. 1, the advantage of this kind of processing mode is that equipment and mold is all fairly simple, and shortcoming is that productivity ratio is low, and labour intensity is large.This mode is not suitable for producing in enormous quantities, uses diel can very fast finishing the work, but the versatility of mould is poor, can only strike out a kind of model.
Summary of the invention
The object of the present invention is to provide the necking die of the pipe blank of the various model of a kind of energy punching press.
The present invention is achieved by the following technical solutions: pipe reducing die, comprise die socket, wherein, die socket is connected with driving mechanism, is fixed with die block below die socket, and die block lower end outer wall is provided with external screw thread, die block overcoat has the fixed cover removably connected, fixed cover coordinates the module slot in the middle part of die block to be connected with die block, and recessed module bottom surface offers punching press through hole, and the top of punching press through hole is provided with discharge ram; Be provided with convex mould base below die socket, be provided with the drift coordinating stamped groove in the middle part of convex mould base, convex mould base offers holddown groove in forcer position.
The invention has the beneficial effects as follows: in background, mention that existing pipe reducing die versatility is poor, cannot the pipe of punching press Multiple Type, the present invention is directed to the reducing die that this kind of situation devises the dismountable replacing of a kind of die block, the die block of different model can be installed according to different situations, add the versatility of pipe reducing die, below by way of use procedure of the present invention, beneficial effect of the present invention is described, turn on fixed cover and fixed head, die is put into the mounting groove of fixed head, tighten fixed cover, die is fixed in mounting groove, pipe blank is placed on the holddown groove internal fixtion of convex mould base, by the inwall of elastic expansion sleeve at pipe blank, pipe is located.Start the drive unit of die socket, die socket moves down, and the die block of die socket coordinates the drift of convex mould base, and the mouth of pipe extruding being placed in the pipe blank of convex mould base reduced, after reducing completes, discharge ram releases shaping workpiece downwards.To sum up, the present invention not only completes the task of reducing efficiently, and adds the versatility of reducing die.
Further, the elastic expansion sleeve of fixing tube blank is provided with in holddown groove.Be only that holddown groove may fixing tube blank under huge stamping press completely, elastic expansion sleeve be set and between drift and holddown groove, pipe fixed further.
Further, fixed cover inwall is provided with screw thread, and the outer wall of fixed head is provided with screw thread, and fixed cover is threaded with fixed head.Fixed cover and fixed head removably connect, and adopt the mode of screw thread, have both ensured the stability after fixing, and also ensure that dismounting and change is quick.
Further, drift lower end is provided with thread segment, and drift is threaded with convex mould base.Drift is easily worn part, adopts the mode be threaded, and changes after damage.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
Fig. 1 is the workpiece after structure pipe reducing die embodiment of the present invention machine-shaping;
Fig. 2 is the structural representation of structure pipe reducing die embodiment of the present invention
Reference numeral: discharge ram 1, die block 2, fixed head 3, fixed cover 4, elastic expansion sleeve 5, convex mould base 6, die socket 7, drift 8.
Detailed description of the invention
By reference to the accompanying drawings 1 with pipe reducing die described in Fig. 2, comprise die socket 7, wherein, die socket 7 is connected with driving mechanism, is fixed with die block 3 below die socket 7, and die block 3 lower end outer wall is provided with external screw thread, die block 3 overcoat has fixed cover 4, fixed cover 4 inwall is provided with screw thread, and the outer wall of fixed head 3 is provided with screw thread, and fixed cover 4 is threaded with fixed head 3.Fixed cover 4 coordinates the module slot in the middle part of die block 3 to be connected with die block 2, and die block 2 bottom surface offers punching press through hole, and the top of punching press through hole is provided with discharge ram 1; Be provided with convex mould base 6 below die socket 7, be provided with the drift 8 coordinating stamped groove in the middle part of convex mould base 6, drift 8 lower end is provided with thread segment, and drift 8 is threaded with convex mould base 6.Convex mould base 6 offers holddown groove in drift 8 position.The spring expanding sleeve of fixing tube blank is provided with in holddown groove.
Mention in background that existing pipe reducing die versatility is poor, cannot the pipe of punching press Multiple Type, the present invention is directed to the reducing die that this kind of situation devises the dismountable replacing of a kind of die block 2, the die block 2 of different model can be installed according to different situations, add the versatility of pipe reducing die, below by way of use procedure of the present invention, beneficial effect of the present invention is described, turn on fixed cover 4 and fixed head 3, die 2 is put into the mounting groove of fixed head 3, tighten fixed cover 4, die 2 is fixed in mounting groove, pipe blank is placed on the holddown groove internal fixtion of convex mould base 6, by the inwall of elastic expansion sleeve 5 at pipe blank, pipe is located.Start the drive unit of die socket 7, die socket 7 moves down, and the die block 2 of die socket 7 coordinates the drift 8 of convex mould base 6, and the mouth of pipe extruding being placed in the pipe blank of convex mould base 6 reduced, after reducing completes, discharge ram 1 releases shaping workpiece downwards.To sum up, the present invention not only completes the task of reducing efficiently, and adds the versatility of reducing die.The elastic expansion sleeve 5 of fixing tube blank is provided with in holddown groove.Be only that holddown groove may fixing tube blank under huge stamping press completely, elastic expansion sleeve 5 be set and between drift 8 and holddown groove, pipe fixed further.Fixed cover 4 inwall is provided with screw thread, and the outer wall of fixed head 3 is provided with screw thread, and fixed cover 4 is threaded with fixed head 3.Fixed cover 4 and fixed head 3 removably connect, and adopt the mode of screw thread, have both ensured the stability after fixing, and also ensure that dismounting and change is quick.Drift 8 lower end is provided with thread segment, and drift 8 is threaded with convex mould base 6.Drift 8 is easily worn parts, adopts the mode be threaded, and changes after damage.
Above is only the preferred embodiment of the present invention; should be understood that; for a person skilled in the art; under the prerequisite not departing from structure of the present invention; some distortion and improvement can also be made; 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. pipe reducing die, comprise die socket, it is characterized in that, described die socket is connected with driving mechanism, is fixed with die block below die socket, and described die block lower end outer wall is provided with external screw thread, die block overcoat has the fixed cover removably connected, described fixed cover coordinates the module slot in the middle part of die block to be connected with die block, and described recessed module bottom surface offers punching press through hole, and the top of described punching press through hole is provided with discharge ram; Be provided with convex mould base below described die socket, be provided with the drift coordinating stamped groove in the middle part of described convex mould base, described convex mould base offers holddown groove in forcer position.
2. pipe reducing die as claimed in claim 1, is characterized in that, be provided with the spring expanding sleeve of fixing tube blank in described holddown groove.
3. pipe reducing die as claimed in claim 1, it is characterized in that, described fixed cover inwall is provided with screw thread, and the outer wall of described fixed head is provided with screw thread, and described fixed cover is threaded with fixed head.
4. pipe reducing die as claimed in claim 1, it is characterized in that, described drift lower end is provided with thread segment, and described drift is threaded with convex mould base.
CN201410794328.5A 2014-12-21 2014-12-21 Necking die for pipe Pending CN104475583A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410794328.5A CN104475583A (en) 2014-12-21 2014-12-21 Necking die for pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410794328.5A CN104475583A (en) 2014-12-21 2014-12-21 Necking die for pipe

Publications (1)

Publication Number Publication Date
CN104475583A true CN104475583A (en) 2015-04-01

Family

ID=52750260

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410794328.5A Pending CN104475583A (en) 2014-12-21 2014-12-21 Necking die for pipe

Country Status (1)

Country Link
CN (1) CN104475583A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107866496A (en) * 2016-09-28 2018-04-03 中国航空工业集团公司北京航空制造工程研究所 A kind of lower cone forming tool and method for being used to interfere pumping nail double tapered bushing
CN111570647A (en) * 2020-05-27 2020-08-25 成都佰缇丽贸易有限公司 Short pipe material necking machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107866496A (en) * 2016-09-28 2018-04-03 中国航空工业集团公司北京航空制造工程研究所 A kind of lower cone forming tool and method for being used to interfere pumping nail double tapered bushing
CN107866496B (en) * 2016-09-28 2019-07-09 中国航空制造技术研究院 It is a kind of for interfering the lower cone forming tool and method of pumping nail double tapered bushing
CN111570647A (en) * 2020-05-27 2020-08-25 成都佰缇丽贸易有限公司 Short pipe material necking machine

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PB01 Publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20150401

WD01 Invention patent application deemed withdrawn after publication