CN203830562U - Forming die for flanging automobile safety buckle - Google Patents
Forming die for flanging automobile safety buckle Download PDFInfo
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- CN203830562U CN203830562U CN201420283440.8U CN201420283440U CN203830562U CN 203830562 U CN203830562 U CN 203830562U CN 201420283440 U CN201420283440 U CN 201420283440U CN 203830562 U CN203830562 U CN 203830562U
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Abstract
The utility model relates to a forming die for flanging an automobile safety buckle. The forming die is used for flanging a previously punched buckle material strap, and comprises a flanging part; the forming die further comprises a chamfering part for chamfering a cut edge punched previously, a pre-flanging part for downwards pressing a material on the material strap to the edge of the hole, a back pressing part for forming a plane end face, projecting to be below the material strap after flanging, of a flanged part into a cambered end face, and a shaping part for enabling the cambered end face projecting under the material strap to extend in the circumferential direction of the hole. The forming die is added with the chamfering, pre-flanging, back pressing and shaping parts on the basis of the previous flanging die so that the forming of the safety buckle is smoother in transition, and as a result, the buckle is smooth and burr-free in surface, and also higher in strength and better in safety performance.
Description
Technical field
The utility model relates to auto parts production mould field, particularly a kind of automotive safety buckle flanging molding die.
Background technology
The moulding process of automotive safety buckle is mainly concerned with flange, due to the particularity in the application of automotive safety buckle, so be very strict to the forming requirements of automotive safety buckle.Very large power, because will be connected with safety belt, so surface is definitely smooth, without burr, and need be born by the flange place of automotive safety buckle.Common flanging process is all first pre-punched hole and then flange, and such moulding process is applicable to the flange of common requirement, and after flange, burr is larger, there will be the situations such as cracking and surface be sharp.Refer more particularly to the flange of thick material, above-mentioned unfavorable condition is serious especially.The safety buckle of if so is applied in auto parts and components, may cause damage to safety belt, can affect the stress performance of safety belt, long term wear even can make safety belt in case of emergency due to stressed compared with rupturing greatly, for passenger, will be the major hidden danger in safety, cause safety belt no longer safe.
Summary of the invention
The purpose of this utility model is to provide the automotive safety buckle flanging molding die that a kind of production effect is good.
For achieving the above object, the technical solution adopted in the utility model is: a kind of automotive safety buckle flanging molding die, it is for having rushed the buckle material strip flange moulding in hole, it comprises turn-up portion, it also comprise for the trimming to after punching carry out chamfering chamfered section, by the material on material strip press to downwards bore edges pre-turn-up portion, make by the outstanding planar end in the backward material strip of turn-up portion flange below, formed the back pressure portion of curved end and make the outstanding curved end in material strip below to the shaping portion of the circumferential extension in hole;
Described chamfered section comprises the first counterdie, and described the first counterdie upper surface is provided with the stud bumps identical with hole size on material strip, between described stud bumps and the upper surface of described the first counterdie, is round-corner transition,
Described pre-turn-up portion comprise offer the second counterdie of bending hole, over against the second drift of described bending hole, the lower surface of described the second drift and side are round-corner transition, its side first stretches out along prolonging arc after straight line extends from the bottom to top, and the diameter of its straight line extension is the diameter that is less than bending hole;
Described back pressure portion comprises the 4th counterdie and the 4th drift, on the upper surface of described the 4th counterdie, offer first ring connected in star, the bottom land of described first ring connected in star is arc, and the inner ring end face of the lower surface of described the 4th drift and described first ring connected in star fits like a glove, and its side forms R angle;
Described shaping portion comprises the 5th counterdie and the 5th drift, on the upper surface of described the 5th counterdie, offer the second annular groove, the bottom land of described the second annular groove is that arc and edge circumferentially stretch out, the inner ring end face of the lower surface of described the 5th drift and described the second annular groove fits like a glove, its side forms R angle, and its R angle angle is greater than the R angle angle of the 4th drift side.
Optimize, described turn-up portion comprises the 3rd counterdie and the 3rd drift, and the lower surface diameter of described the 3rd drift is less than the lower surface diameter of described the second drift, and segment length is extended than the straight line of described the second drift in its straight line extension.
Because technique scheme is used, the utility model compared with prior art has following advantages: the utility model is included in has increased chamfering, pre-flange, back pressure, shaping portion on the basis of original flanging die, safe block button moulding transition is obtained more level and smooth, not only smooth surface is without burr, and the intensity of buckle is higher, security performance is better.
Accompanying drawing explanation
The structural representation that accompanying drawing 1 is chamfered section;
The structural representation that accompanying drawing 2 is pre-turn-up portion;
The structural representation that accompanying drawing 3 is turn-up portion;
Accompanying drawing 4 is the structural representation of back pressure portion;
Accompanying drawing 5 is the structural representation of shaping portion;
Accompanying drawing 6 be buckle final molding structural representation;
Wherein: 1, chamfered section; 2, pre-turn-up portion; 3, turn-up portion; 4, back pressure portion; 5, shaping portion; 6, material strip; 11, the first counterdie; 12, stud bumps; 21, the second counterdie; 22, bending hole; 23, the second drift; 31, the 3rd counterdie; 32, the 3rd drift; 41, the 4th counterdie; 42, the 4th drift; 43, first ring connected in star; 51, the 5th counterdie; 52, the 5th drift; 53, the second annular groove.
The specific embodiment
Below in conjunction with embodiment shown in the drawings, the utility model is further described.
This automotive safety buckle flanging molding die, it is for having rushed the buckle material strip 6 flange moulding in hole, as shown in Fig. 1,2,3,4,5, it comprise for the trimming to after punching carry out chamfering chamfered section 1, by the material on material strip press to downwards bore edges pre-turn-up portion 2, turn-up portion 3, make to be formed the back pressure portion 4 of curved end and make the outstanding curved end in material strip below to the shaping portion 5 of the circumferential extension in hole by the outstanding planar end in the backward material strip of turn-up portion 3 flange below.
Chamfered section 1 comprises that the first counterdie 11, the first counterdie 11 upper surfaces are provided with the stud bumps 12 identical with hole size on material strip, between stud bumps 12 and the upper surface of the first counterdie 11, is round-corner transition.Acting as of chamfered section 1: owing to there being the sharper situation of burr and incision on material strip after pre-punched hole, so direct flange can produce wedge angle and larger burr can exert an adverse impact to follow-up technique, even can cause the failure of technique below.For fear of the generation of above-mentioned situation, first the trimming after pre-punched hole to be carried out to chamfering, like this otch will smoother, without burr, thereby eliminated wedge angle, burr.
Pre-turn-up portion 2 comprise offer the second counterdie 21 of bending hole 22, over against the second drift 23 of bending hole 22, the lower surface of the second drift 23 and side are round-corner transition, its side first stretches out along prolonging arc after straight line extends from the bottom to top, and the diameter of its straight line extension is the diameter that is less than bending hole 22.Acting as of pre-turn-up portion 2: because direct flange is unfavorable for flowing of product material, can cause the product material after flange less, and then product there will be because lacking and expects to produce bad phenomenon.For fear of the generation of above-mentioned situation, we carry out pre-flange after chamfering, as long as pre-flange reaches the similar shape of flange, topmost object is by more the flowing on the limit after flange of material, so pre-flange mainly be take material and flowed as main.
Turn-up portion 3 comprises that the lower surface diameter of the 3rd counterdie 31 and the 3rd drift 32, the three drifts 32 is less than the lower surface diameter of the second drift 23, and segment length is extended than the straight line of the second drift 23 in its straight line extension.Acting as of turn-up portion 3: owing to will carrying out flanging process after pre-flange, in flanging process, to guarantee that material also will guarantee the moulding at product R angle in mobile, so step process will be accomplished the R angle of the drift of mould the size at product R angle, effect after moulding is the upper half plane R angle basic forming of product like this, material is extruded on limit simultaneously and uses for next step technique
Back pressure portion 4 comprises the 4th counterdie 41 and the 4th drift 42, on the upper surface of the 4th counterdie 41, offer first ring connected in star 43, the bottom land of first ring connected in star 43 is arc, and the inner ring end face of the lower surface of the 4th drift 42 and first ring connected in star 43 fits like a glove, and its side forms R angle.Back pressure portion 4 act as: after making flange, product material is to side flow and moulding rear surface Glabrous thorn.Back pressure is a most key step in automotive safety buckle flange moulding process.Wherein we will consider the size of product, the thickness of the thickness on limit, product material; in mould, patrix stripper plate enters the R angle that finished product is made at the R angle of piece; the effect that stripper plate enters piece is to guarantee to suppress flowing and distortion of material in counterdie back pressure process, prevents from destroying previous step flange product R angle afterwards.The effect of counterdie is by material strip back pressure, and material is upwards flowed, and the size at part R angle under product will be accomplished in the R angle of counterdie, and outside will be done larger R angle and be produced lousiness with after avoiding wedge angle to contact with product.
Shaping portion 5 comprises the 5th counterdie 51 and the 5th drift 52, on the upper surface of the 5th counterdie 51, offer the second annular groove 53, the bottom land of the second annular groove 53 is that arc and edge circumferentially stretch out, the inner ring end face of the lower surface of the 5th drift 52 and the second annular groove 53 fits like a glove, its side forms R angle, and its R angle angle is greater than the R angle angle of the 4th drift 42 sides.Shaping portion 5 act as: although the shape basic forming of product after back pressure, because automotive safety buckle is higher to its mechanical property requirements, thus to flange afterwards the size of product also have higher requirement.So we have increased by a step shaping process after formed product completes substantially, it is more smooth that the size that is product by this technique reaches the qualified surface of product that simultaneously can make, the wearing and tearing to safety belt also can be reduced in surface smooth when having guaranteed size, the final buckle forming as shown in Figure 6.
Above-described embodiment is only explanation technical conceive of the present utility model and feature, and its object is to allow person skilled in the art can understand content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, within all should being encompassed in protection domain of the present utility model.
Claims (2)
1. an automotive safety buckle flanging molding die, it is for having rushed buckle material strip (6) the flange moulding in hole, it comprises turn-up portion (3), it is characterized in that: it also comprise for the trimming to after punching carry out chamfering chamfered section (1), by the material on material strip press to downwards bore edges pre-turn-up portion (2), make by the outstanding planar end in the backward material strip of turn-up portion (3) flange below, formed the back pressure portion (4) of curved end and make the outstanding curved end in material strip below to the shaping portion (5) of the circumferential extension in hole;
Described chamfered section (1) comprises the first counterdie (11), described the first counterdie (11) upper surface is provided with the stud bumps (12) identical with hole size on material strip, between the upper surface of described stud bumps (12) and described the first counterdie (11), it is round-corner transition
Described pre-turn-up portion (2) comprise offer second counterdie (21) of bending hole (22), over against second drift (23) of described bending hole (22), the lower surface of described the second drift (23) and side are round-corner transition, its side first stretches out along prolonging arc after straight line extends from the bottom to top, and the diameter of its straight line extension is for being less than the diameter of bending hole (22);
Described back pressure portion (4) comprises the 4th counterdie (41) and the 4th drift (42), on the upper surface of described the 4th counterdie (41), offer first ring connected in star (43), the bottom land of described first ring connected in star (43) is arc, the inner ring end face of the lower surface of described the 4th drift (42) and described first ring connected in star (43) fits like a glove, and its side forms R angle;
Described shaping portion (5) comprises the 5th counterdie (51) and the 5th drift (52), on the upper surface of described the 5th counterdie (51), offer the second annular groove (53), the bottom land of described the second annular groove (53) is that arc and edge circumferentially stretch out, the inner ring end face of the lower surface of described the 5th drift (52) and described the second annular groove (53) fits like a glove, its side forms R angle, and its R angle angle is greater than the R angle angle of the 4th drift (42) side.
2. automotive safety buckle flanging molding die according to claim 1, it is characterized in that: described turn-up portion (3) comprises the 3rd counterdie (31) and the 3rd drift (32), the lower surface diameter of described the 3rd drift (32) is less than the lower surface diameter of described the second drift (23), and segment length is extended than the straight line of described the second drift (23) in its straight line extension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420283440.8U CN203830562U (en) | 2014-05-29 | 2014-05-29 | Forming die for flanging automobile safety buckle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420283440.8U CN203830562U (en) | 2014-05-29 | 2014-05-29 | Forming die for flanging automobile safety buckle |
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| Publication Number | Publication Date |
|---|---|
| CN203830562U true CN203830562U (en) | 2014-09-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420283440.8U Expired - Fee Related CN203830562U (en) | 2014-05-29 | 2014-05-29 | Forming die for flanging automobile safety buckle |
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| CN (1) | CN203830562U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105478598A (en) * | 2016-02-05 | 2016-04-13 | 天津津荣天宇精密机械股份有限公司 | Flanging punching die |
| CN105964795A (en) * | 2016-06-12 | 2016-09-28 | 苏州天朋精密元器件有限公司 | Internal flanging puncher pin |
| CN106140942A (en) * | 2015-03-31 | 2016-11-23 | 俞建平 | Carrot-free punching die after punching plates |
| CN106270274A (en) * | 2015-05-21 | 2017-01-04 | 天津市津荣天宇精密机械有限公司 | A kind of forming technique method using progressive die processing fastener |
| CN109413562A (en) * | 2018-12-29 | 2019-03-01 | 歌尔股份有限公司 | Processing method, front cover and the sounding device of front cover |
| CN110052533A (en) * | 2019-04-09 | 2019-07-26 | 苏州华旃航天电器有限公司 | Stamping die |
| CN111054798A (en) * | 2019-10-22 | 2020-04-24 | 上海申驰实业有限公司 | Flanging hole manufacturing process for automobile parts |
| CN111151649A (en) * | 2020-01-16 | 2020-05-15 | 天津津荣天宇精密机械股份有限公司 | Upward forming method for buckle |
| CN113182968A (en) * | 2021-05-11 | 2021-07-30 | 刘春燕 | Aluminum alloy section bar system of processing |
| CN113210505A (en) * | 2021-06-16 | 2021-08-06 | 联德精密材料（中国）股份有限公司 | Groove-shaped hole flanging process |
-
2014
- 2014-05-29 CN CN201420283440.8U patent/CN203830562U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106140942A (en) * | 2015-03-31 | 2016-11-23 | 俞建平 | Carrot-free punching die after punching plates |
| CN106270274A (en) * | 2015-05-21 | 2017-01-04 | 天津市津荣天宇精密机械有限公司 | A kind of forming technique method using progressive die processing fastener |
| CN105478598A (en) * | 2016-02-05 | 2016-04-13 | 天津津荣天宇精密机械股份有限公司 | Flanging punching die |
| CN105964795A (en) * | 2016-06-12 | 2016-09-28 | 苏州天朋精密元器件有限公司 | Internal flanging puncher pin |
| CN109413562A (en) * | 2018-12-29 | 2019-03-01 | 歌尔股份有限公司 | Processing method, front cover and the sounding device of front cover |
| CN110052533A (en) * | 2019-04-09 | 2019-07-26 | 苏州华旃航天电器有限公司 | Stamping die |
| CN111054798A (en) * | 2019-10-22 | 2020-04-24 | 上海申驰实业有限公司 | Flanging hole manufacturing process for automobile parts |
| CN111151649A (en) * | 2020-01-16 | 2020-05-15 | 天津津荣天宇精密机械股份有限公司 | Upward forming method for buckle |
| CN111151649B (en) * | 2020-01-16 | 2021-12-28 | 天津津荣天宇精密机械股份有限公司 | Upward forming method for buckle |
| CN113182968A (en) * | 2021-05-11 | 2021-07-30 | 刘春燕 | Aluminum alloy section bar system of processing |
| CN113182968B (en) * | 2021-05-11 | 2022-12-16 | 浙江拓卡斯科技股份有限公司 | Aluminum alloy profile machining system |
| CN113210505A (en) * | 2021-06-16 | 2021-08-06 | 联德精密材料（中国）股份有限公司 | Groove-shaped hole flanging process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: High tech Industrial Development Zone, Suzhou City, Jiangsu province 215151 Xuguan Industrial Park Hu Chen Road No. 28 Patentee after: Suzhou resmark precision industry Limited by Share Ltd Address before: High tech Industrial Development Zone, Suzhou City, Jiangsu province 215151 Xuguan Industrial Park Hu Chen Road No. 28 Patentee before: Suzhou Cheersson Precision Metal Forming Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20210529 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |