CN105903811A - Punching mold for internal spline - Google Patents
Punching mold for internal spline Download PDFInfo
- Publication number
- CN105903811A CN105903811A CN201610253565.XA CN201610253565A CN105903811A CN 105903811 A CN105903811 A CN 105903811A CN 201610253565 A CN201610253565 A CN 201610253565A CN 105903811 A CN105903811 A CN 105903811A
- Authority
- CN
- China
- Prior art keywords
- punching
- drift
- internal spline
- punching press
- steel pipe
- 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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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Press Drives And Press Lines (AREA)
Abstract
The invention discloses a punching mold for an internal spline. The mold comprises a punching plate (1), wherein the punching plate is used for a hydraulic punching machine to apply force; the punching plate is connected with a punching pull rod (2); the punching pull rod is connected with a punching head (4) which plays a punching role; and the mold also comprises a guide plate (3) which plays a guiding role, a concave die (5) in which a to-be-punched steel tube (8) is located, a straightening chamber (6) which plays a straightening role, and a base (7) for supporting the whole mold. The punching mold for the internal spline is characterized in that the punching head (4) is detachable. The problem, in the machining process of a tube for the internal spline, that the unnecessary damage to the inner wall of a spline which has been machined well is caused as the punching head returns can be solved; moreover, the punching head of the punching mold for the internal spline is separable; and a quick-wear part is quite convenient to replace.
Description
The present invention is Application No. 2014106951161, invention entitled: the divisional application of a kind of drift separable internal spline diel.
Technical field
The invention belongs to field of machining, relate to a kind of internal spline diel especially.
Background technology
nullThe most in the prior art，Internal spline tube or the general mode using broaching tool broaching of set shape，The draw ratio limit of its broaching spline is usually no more than 6 times，But we referring now to the internal spline draw ratio of automobile steering device spline tubing string reached 10 times，Obviously it is difficult to even cannot realize by the mode of broaching tool broaching，As used swaging techniques also can produce the splined tube that draw ratio is bigger，But swaging techniques cost of investment is high，Risk is big，Productivity ratio is low，Practical not，So having some further to improve use the tubular workpieces long by the mode processing length of punching press，It is processed to form internal spline tube，But for Mu Qian，The general processing method used is first workpiece to be processed to be carried out surface process，Make its smooth surface，And beneficially punching press time lubrication，Can be easy to process，And ensure its crudy，But for present diel，Use the punching press effect that drift reciprocating realizes，When drift effect, workpiece to be processed surface is treated has possessed the performance slided，After processed，The extruding of inwall is made its internal diameter change by drift，The greasing substance of script on inwall so can be made to reduce even disappear，Can contact at inwall when drift bounces back，If so have the excesssive gap of impurity or drift，Inwall can be caused unnecessary damage by drift，Crudy is caused to decline，Even cause product rejection，Affect the economy of efficiency and processing.
Summary of the invention
It is an object of the invention to: propose a kind of internal spline diel, can solve the problem that above-mentioned in the course of processing of internal spline tube, owing to the spline inwall processed is caused the problem of unnecessary damage by drift backhaul, and its drift is separable, changes very convenient for consumable accessory.
The purpose of the present invention is realized by following technical proposals:
A kind of internal spline diel, described mould includes: have, for its upper connection of pressed sheet of hydraulic press force, the drift that punching press pull bar plays punching press effect, the guide plate playing the guiding role is for the die of steel pipe to be punched location, play the straightening chamber of straightening effect, support the base of whole mould, it is characterized in that: described drift is detachable, its operation principle is, when during work, punching press pull bar loads drift, it promotes punching press effect block to reach the diameter needed, and the pressure needed for applying for workpiece under the effect of hydraulic fluid press, thus by extruding, steel pipe is caused the deformation of needs, after punching press completes, pull bar is lifted up, now punching press effect block can shrink, and the arm-tie drawing pin to act on drift that whole drift is on pull bar makes whole drift return to initial position, thus circulate this operation.
As a further improvement on the present invention, it is characterised in that described drift is divided into base plate punching press effect block pressur plate, such structure is for realizing in punch diameter variable offer condition.
As a further improvement on the present invention, it is characterised in that being provided with its stroke lowest part of spring catch on the base plate of described drift so can make punching press effect block be positioned by single direction less than the upper surface of base plate.
As a further improvement on the present invention, it is inclined-plane that the bottom of the punching press effect block of described drift is machined with its cross sectional shape of bayonet fittings groove, and so can realize it can be along the unidirectional slip of base plate.
As a further improvement on the present invention, it is characterised in that be connected with between three ingredients of described drift, its thickness, not less than 1/2nd of diameter of steel tube to be processed, so can make drift entirety have enough rigidity and realize punching press.
As a further improvement on the present invention, it is characterized in that, described straightening chamber and steel pipe joint are machined with decompression chamfering, its maximum gauge 5-10mm bigger than pipe diameter, the steel pipe change in volume when being squeezed deformation so can be made to have open ended space, eliminate its extruding counteracting force.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows: propose a kind of internal spline diel, can solve the problem that above-mentioned in the course of processing of internal spline tube, the problem spline inwall processed being caused unnecessary damage due to drift backhaul, and its drift is separable, change very convenient for consumable accessory.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention.
Fig. 2 drift partial schematic diagram.
Fig. 3 is drift profile.
Fig. 4 is decompression full-shape schematic diagram.
Labelling in figure: 1-pressed sheet, 2-punching press pull bar, 21-pin, 3-guide plate, 4-drift, 41-base plate, 411-spring catch, 42-punching press effect block, 421-bayonet fittings groove, 43-pressing plate, 432-arm-tie, 5-die, 6-straightening chamber, 61-reduce pressure full-shape, 7-base, 8-steel pipe, 9-handle.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the present invention is described in detail.
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
nullAs Fig. 1 to 4 show the embodiment of the present invention a kind of internal spline diel，As shown in Figure 1，A kind of internal spline diel，Described mould includes: have, for its upper connection of pressed sheet 1 of hydraulic press force, the drift 4 that punching press pull bar 2 plays punching press effect，The guide plate 3 playing the guiding role is for the die 5 of steel pipe 8 to be punched location，Play the straightening chamber 6 of straightening effect，Support the base 7 of whole mould，It is characterized in that: described drift 4 is detachable，As shown in Figure 3，Such setting can make steel pipe 8 when by punching press，Drift 4 is full of inside it when effect，When backhaul, punching press effect block 42 can shrink，Its inwall will not be caused damage，Its principle realized is，When after whole mould installation，Steel pipe 8 is placed in die 5，Now pacify and drift 4 is placed in steel pipe 8 inside，Handling hydraulic press makes depression bar 2 capable，Oppress drift 4 and through whole steel pipe 8，Thus realize the processing of internal spline，As shown in Figure 2，When backhaul, depression bar 2 moves upward，Pin 21 is made to pull pressing plate 43 to make depression bar 2 depart from punching press effect block 42，Now it can bounce back and inwall will not be caused damage，When being recycled to the operation of next root steel pipe 8，This stylish steel pipe 8 put into above have a squeezing action，Make manufactured steel pipe 8 through straightening chamber 6，And the internal diameter in straightening chamber 6 is the least with the gap of the major diameter fit of steel pipe 8，Steel pipe 8 is had the effect of a straightening，It is then passed through its cavity，The product processed may finally be removed arrangement，Described drift 4 is divided into base plate 41 punching press effect block 42 pressing plate 43，Such structure is for realizing in punch diameter variable offer condition，Make its effect part can diameter variable while，The usefulness of its punching press effect is unaffected，Being provided with its stroke lowest part of spring catch 411 on the base plate 41 of described drift 4 can be less than the upper surface of base plate，So punching press effect block 42 can be formed position-limiting action，Eliminate its position-limiting action when can also shrink，It is inclined-plane that the bottom of the punching press effect block 42 of described drift 4 is machined with its cross sectional shape of bayonet fittings groove 421，So can realize it can be along the unidirectional slip of base plate，And its unidirectional slip only needs less radial force just can realize，Without artificial force，It is connected with between three ingredients of described drift 4，Its thickness is not less than 1/2nd of steel pipe 8 diameter to be processed，Its three part so can be enable to link together reliably，And drift entirety so can be made to have enough rigidity and intensity realizes ability required for punching press，As shown in Figure 4，Described straightening chamber 6 and steel pipe 8 joint are machined with decompression chamfering 61，Its maximum gauge 5-10mm bigger than pipe diameter，The steel pipe change in volume when being squeezed deformation so can be made to have open ended space，Without accommodating space，Its counteracting force can make the steel pipe 8 processed be deformed by the effect of power along shifting on steel pipe 8，Thus affect stamping quality.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all any amendment, equivalent and improvement etc. made within the spirit and principles in the present invention, should be included within the scope of the present invention.
Claims (4)
- null1. an internal spline diel，Described mould includes: for the pressed sheet (1) of hydraulic press force，The upper connection of pressed sheet (1) has punching press pull bar (2)，Described punching press pull bar (2) is upper connects the drift (4) having had punching press effect，Described mould also includes the guide plate (3) playing the guiding role、The die (5) positioned for steel pipe to be punched (8)、Play the straightening chamber (6) of straightening effect and support the base (7) of whole mould，It is characterized in that: described drift (4) is detachable，Described drift (4) is divided into base plate (41)、Punching press effect block (42) and pressing plate (43)，Its stroke lowest part of spring catch (411) is installed on the base plate (41) of described drift (4) upper surface of base plate (41) can be less than，The bottom of punching press effect block (42) of described drift (4) is machined with bayonet fittings groove (421)，Its cross sectional shape is inclined-plane.
- A kind of internal spline diel the most according to claim 1, it is characterised in that be connected with between three ingredients of described drift (4), its thickness is not less than 1/2nd of steel pipe to be processed (8) diameter.
- A kind of internal spline diel the most according to claim 1, it is characterised in that have the arm-tie (432) for drift backhaul on the pressing plate (43) of described drift (4).
- A kind of internal spline diel the most according to claim 1, it is characterised in that described straightening chamber (6) and steel pipe (8) joint are machined with decompression chamfering (61), and its maximum gauge is than the big 5-10mm of steel pipe (8) internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610253565.XA CN105903811B (en) | 2014-11-27 | 2014-11-27 | A kind of internal spline diel |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610253565.XA CN105903811B (en) | 2014-11-27 | 2014-11-27 | A kind of internal spline diel |
| CN201410695116.1A CN104399818B (en) | 2014-11-27 | 2014-11-27 | A kind of drift separable internal spline diel |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410695116.1A Division CN104399818B (en) | 2014-11-27 | 2014-11-27 | A kind of drift separable internal spline diel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105903811A true CN105903811A (en) | 2016-08-31 |
| CN105903811B CN105903811B (en) | 2018-01-09 |
Family
ID=52637521
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410695116.1A Active CN104399818B (en) | 2014-11-27 | 2014-11-27 | A kind of drift separable internal spline diel |
| CN201610253564.5A Expired - Fee Related CN105855385B (en) | 2014-11-27 | 2014-11-27 | A kind of diel for protecting internal spline |
| CN201610253565.XA Active CN105903811B (en) | 2014-11-27 | 2014-11-27 | A kind of internal spline diel |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410695116.1A Active CN104399818B (en) | 2014-11-27 | 2014-11-27 | A kind of drift separable internal spline diel |
| CN201610253564.5A Expired - Fee Related CN105855385B (en) | 2014-11-27 | 2014-11-27 | A kind of diel for protecting internal spline |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN104399818B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104399818B (en) * | 2014-11-27 | 2016-08-24 | 四川九鼎智远知识产权运营有限公司 | A kind of drift separable internal spline diel |
| CN105414317B (en) * | 2015-11-30 | 2017-08-25 | 南通江海港建设工程有限公司 | A kind of internal spline drift for preventing machined surface impaired |
| CN105414280B (en) * | 2015-11-30 | 2017-05-24 | 青岛恒泰机械配件有限公司 | Two-stage stamping device for machining reducing spline |
| CN110947848B (en) * | 2019-12-04 | 2021-10-08 | 东台东之达电子有限公司 | A high life mould for CNC precision finishing steel |
| CN112720982A (en) * | 2020-12-04 | 2021-04-30 | 中北大学 | Rubber part punch forming device with replaceable mold |
| CN115070441B (en) * | 2022-08-23 | 2022-11-18 | 江苏源达恒汽车配件有限公司 | Spline shaft cold press molding equipment and process |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4416142A (en) * | 1981-08-31 | 1983-11-22 | Olin Corporation | Apparatus for simultaneously forming a cap member with internal threads |
| DE3311590A1 (en) * | 1983-03-30 | 1984-10-04 | Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen | Process and apparatus for the production of a housing for a locking differential for motor vehicles |
| SU1186342A1 (en) * | 1983-08-05 | 1985-10-23 | Nikolaj A Kleshchev | Apparatus for upsetting tube blanks |
| CN102335810A (en) * | 2011-08-19 | 2012-02-01 | 江苏森威精锻有限公司 | Method for forming precise slender internal spline tube |
| CN203459452U (en) * | 2013-07-29 | 2014-03-05 | 江苏森威精锻有限公司 | Die for improving run-out accuracy of external circle of internal splined shaft |
| CN104399818B (en) * | 2014-11-27 | 2016-08-24 | 四川九鼎智远知识产权运营有限公司 | A kind of drift separable internal spline diel |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6221430A (en) * | 1985-07-22 | 1987-01-29 | Toyota Motor Corp | Gear cutting method by press |
| CN2439344Y (en) * | 2000-06-30 | 2001-07-18 | 长春汽车材料研究所 | Integral key cold extruding forming die |
| CN101249523B (en) * | 2008-04-11 | 2010-10-13 | 袁正敏 | Method for wedge pressure forming process gear wheel |
| CN102489601A (en) * | 2011-11-29 | 2012-06-13 | 大连大显精密轴有限公司 | Spline shaft machining mould |
-
2014
- 2014-11-27 CN CN201410695116.1A patent/CN104399818B/en active Active
- 2014-11-27 CN CN201610253564.5A patent/CN105855385B/en not_active Expired - Fee Related
- 2014-11-27 CN CN201610253565.XA patent/CN105903811B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4416142A (en) * | 1981-08-31 | 1983-11-22 | Olin Corporation | Apparatus for simultaneously forming a cap member with internal threads |
| DE3311590A1 (en) * | 1983-03-30 | 1984-10-04 | Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen | Process and apparatus for the production of a housing for a locking differential for motor vehicles |
| SU1186342A1 (en) * | 1983-08-05 | 1985-10-23 | Nikolaj A Kleshchev | Apparatus for upsetting tube blanks |
| CN102335810A (en) * | 2011-08-19 | 2012-02-01 | 江苏森威精锻有限公司 | Method for forming precise slender internal spline tube |
| CN203459452U (en) * | 2013-07-29 | 2014-03-05 | 江苏森威精锻有限公司 | Die for improving run-out accuracy of external circle of internal splined shaft |
| CN104399818B (en) * | 2014-11-27 | 2016-08-24 | 四川九鼎智远知识产权运营有限公司 | A kind of drift separable internal spline diel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104399818B (en) | 2016-08-24 |
| CN105855385B (en) | 2018-01-09 |
| CN105855385A (en) | 2016-08-17 |
| CN105903811B (en) | 2018-01-09 |
| CN104399818A (en) | 2015-03-11 |
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Effective date of registration: 20190627 Address after: 224100 North of South Ring Road, Dafeng District, Yancheng City, Jiangsu Province Patentee after: Jiangsu Shenli gear cold extrusion Co., Ltd. Address before: 610041 Sichuan Chengdu high tech Zone No. 1 Tianfu 69 street 1 1 unit 16 level 1610 Patentee before: Sichuan nine ancient cooking vessel intelligence intellectual property operation far away Co., Ltd |