CN1450832A - Method for making T-iron of loudspeaker - Google Patents
Method for making T-iron of loudspeaker Download PDFInfo
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- CN1450832A CN1450832A CN 02106038 CN02106038A CN1450832A CN 1450832 A CN1450832 A CN 1450832A CN 02106038 CN02106038 CN 02106038 CN 02106038 A CN02106038 A CN 02106038A CN 1450832 A CN1450832 A CN 1450832A
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Abstract
A manufacturing method includes the following steps: 1)calculating out weight of the product as per the size requirement, cutting off equal weight of the material from bar steel, 3) carrying on the first forging i.e. forging one end of the material to be direct-column with smaller diameter and being able to set groove on it (if necessary), 4) carrying on the second forging i.e. forging the other end of the material to be chassis and 5) carrying on the third forging i.e. forging the chassis to be the size as predesigned. The product can be finished continuously on the machining stand with no need to move it to some other place for processing.
Description
Technical field
The present invention relates to a kind ofly can either to shorten Production Time, increase output, can promote product quality again, simultaneously, also with the manufacture method of the T-iron of loudspeaker of profile variation performance, this T-iron of loudspeaker particularly is applicable to the base of loudspeaker.
Background technology
The manufacture method of tradition T-iron of loudspeaker has been a unalterable principle since three more than ten years, as shown in Figure 5, get the less iron staff A of a diameter, earlier this iron staff A is struck out ampuliform B, through the secondary punching press its head of having expanded is impacted once more again and be mushroom shape C, at this moment, the termination that this iron staff is mushroom shape place is near the forging ratio degree of material, that is to say, just must carry out annealing in process if further forge the required size of T iron, otherwise material will be torn.Yet in forging process material being carried out annealing in process makes use of momentum and will take off from former press by iron staff material A, treat to put back to again after annealing in process is finished separately on the processed mould, and in existing annealing in process process, need remove epithelium in addition, the cumbersome formality of multiple tracks such as the processing of sandblasting.Contraposition inaccuracy phenomenon might take place, and have shortcomings such as the man-hour of expending in whole process when the mould of will the semi-finished product after annealing in process putting back on the press machine in existing traditional manufacture method.
The mushroom shape head end of aforementioned iron staff needs to be machined to suitable thinness according to actual size, promptly needs to carry out continuous impact forging to required dimensional accuracy, to form the T iron of a loudspeaker special use on the plate body that has the mushroom shape.
Yet during the process of the manufacturing process of above-mentioned T iron disk at the bottom of forging into large scale, be that iron staff persistent pressure with minor diameter forms disk of large-sized end, therefore the density of iron staff can transfer to closely knit from loosening, therefore after this step, need through annealing in process, can carry out successive process again after making being organized in of iron staff softening, if without annealing in process, directly the iron staff material that density is real is excessively proceeded to forge, the mould that not only is used in forging is very easily destroyed, and finished product itself also can form the defective item that material is torn because of forging ratio is too high.In addition, need when carrying out annealing in process the iron staff material is removed from board, wait it to finish to retract again after the annealing in process and proceed on the board to forge again, thereby quite time-consuming with take a lot of work, and cause Production Time long and output to reduce indirectly, cost of labor is also along with improve simultaneously, and its man-hour, required cost accounted for 30%～40% of its total cost in the sector.
Summary of the invention
For this reason, the manufacture method of T-iron of loudspeaker mainly is need carry out annealing in process and cause problem time-consuming, that take a lot of work in manufacturing process for the manufacture method that solves existing T-iron of loudspeaker among the present invention.
The manufacture method of T-iron of loudspeaker among the present invention includes:
A. at first calculate finished weight according to dimensional requirement;
The material of weight such as b. then from bar steel, intercept;
C. carry out the continuous punching press forging process of multisection type at last, the continuous punching press forging process of this described multisection type comprises: at first carry out the first time and forge, an end that is about to material forges direct-column portion than minor diameter from major diameter, then carrying out the second time forges, the other end that is about to this material is swaged into bigger chassis, forge for the third time at last, the chassis that is about to the material lower end further is swaged into preliminary dimension.
In addition, be equipped with two sections different diameters in the die cavity of employed mould in forging in the described first time, forge for the second time and forging for the third time, be first groove and second groove of different-diameter, wherein can be provided with teat, and can be provided with lead angle at this teat and root edge place in the central authorities of first groove.
In addition, the diameter of second groove on the mould that forges the described second time is greater than the diameter of second groove on the mould in forging for the first time; The diameter of second groove equals the preliminary dimension of finished product in the described mould that forges for the third time.
T-iron of loudspeaker is by means of said process among the present invention, make the diameter of material little from big forging, and make the chassis divide secondary to be swaged into specific dimensions, thereby the density that makes material is unlikely overstocked to the degree that needs annealing in process, therefore, this material does not need to remove from board, thereby but continuous production process, shorten manufacturing time, realize producing in enormous quantities.
Description of drawings
To be described in more detail the technology contents among the present invention, characteristics and the effect brought into play thereof by means of a specific embodiment and conjunction with figs. below.
Fig. 1 is the manufacturing flow chart of T-iron of loudspeaker among the present invention;
Fig. 2 is the manufacturing flow chart of actual product among the present invention;
Fig. 3 a～Fig. 3 c is mould and the corresponding cross-sectional schematic of actual product among the present invention;
Fig. 4 is the stereo appearance figure of actual product among the present invention;
Fig. 5 is the flow chart of traditional forging T iron.
Embodiment
Forging processing is by means of instrument metal material to be pressurizeed, promptly utilize the pressure between mould and the mould to come metal material is carried out compression process, make part or all reduced height of material, width increases, thereby reach required shape, can improve the mechanical performance of material simultaneously.
Forging general employed metal material is many crystal metals, owing to the metal that is formed with thick ingotism by casting within it portion have casting nest (shrinkage gavity), shrinkage hole (shrinkagehole), segregation defectives such as (segregation), so the obdurability of its lack of materials and fail safe, therefore after forging the metal material press molding, thick ingotism in the material can be carried out mechanical damage, and can play crystallization again and miniaturization, casting nest, shrinkage hole are subdued, also the segregation diffusion of part can be homogenization simultaneously.
In addition, owing to reach required form by forging, can save the material unaccounted-for (MUF) and the machining time that cause owing to machining, and can strengthen directivity and the engineering properties that causes flowline owing to the flow deformation of material, thereby the impact value that improves material flowline direction there is remarkable result, therefore, hammered work all has suitable effect to raising tensile strength, extension reduction of area, impact value.
As shown in Figure 1, the manufacture method of T-iron of loudspeaker comprises the following steps: among the present invention
1. calculate finished weight according to dimensional requirement;
2. the material of weight such as intercepting (can go again leveling) from bar steel (bar rod);
3. carry out the first time and forge, an end that is about to material is swaged into the less direct-column portion of diameter, and can be provided with groove (whether visual actual state of this groove thereby decision make) on this direct-column portion;
4. carry out the second time and forge, the other end that is about to material is swaged into bigger chassis;
5. forge for the third time, the lower chassis that is about to material further is swaged into preliminary dimension, gets product.
As mentioned above, at first calculate the weight of the finished product of wishing to get size, weight=density * volume, the volume=area of cylindrical bar steel (π r
2Therefore) * length as shown in Figure 2, is selected the suitable bar steel of diameter 10, brings the density of bar steel into and just can obtain the length L of desiring to cut, and the material 11 of length-specific this sanctions under and weight is begun to process (can flatten in formal forging first being processed) in advance.
Shown in Fig. 3 a to Fig. 3 c, at first material 11 is presented in first mould 20, first mould 20 portion within it is provided with the groove of two sections diameters, first groove 21 is provided with lead angle 22 at its root edge, and be provided with teat 23 in the central, this teat 23 can decide according to the demand of finished product, and simultaneously, the degree of depth of first groove 21 also is to set according to the size of finished product.Second groove 24 is arc limit 25 at the edge place that connects of itself and first groove 21.When utilizing 20 pairs of materials 11 of this mould to pressurize, make the reduced of material 11 first halves, highly increase, form the direct-column portion 12 of path, the end face mediad of this path direct-column portion 12 is recessed down and form groove 14 (this groove 14 can be set according to the outward appearance and the appearance of actual product, is not to be absolute necessity), forms lead angle 13 at its edge, and, then enter into second mould 30 at the cohesive end formation arc of direct-column portion 12 with bottom material 11.
Second mould 30 is identical with first mould 20, also be provided with the groove of two sections diameters, first groove 31 is provided with teat 33 in the central, this teat 33 is provided with lead angle 32 at its root edge, the diameter of second groove 34 is greater than second groove 24 in first mould 20, and the joining place at second groove 34 and first groove 31 is the inclined plane, when material 11 after the pressurization of second mould 30, direct-column portion 12 is identical when keeping with first mould, 20 pressurization backs, and the larger area chassis 15 with inclined plane is then formed on the bottom of material 11.
Enter into the 3rd mould 40 again, the 3rd mould 40 and first mould 20, second mould 30 is identical, also be provided with the groove of two sections diameters, first groove 41 is provided with teat 43 in the central, and the root edge at teat 43 is provided with lead angle 42, and the diameter of second groove 44 is to be set as specific diameter dimension according to demand, and at the recessed edge 46 (this recessed edge 46 also can decide if do not establish according to demand) that is provided with indent near first groove, 41 places, the interior angle of second groove 44 also is set as lead angle 45, and form smooth plane at the joining place of second groove 44 and first groove 41, when material 11 after the pressurization of the 3rd mould 40,15 on the chassis of material 11 bottoms is swaged into required size, this chassis 15 is formed with a flange 18 at it near direct-column portion 12 places, and on the chassis 15 edge, the apical margin of the apical margin of direct-column portion 12 and groove 14 all forms the lead angle 17 with arc shaped owing to be squeezed, 13 and 16, thereby form the T iron shape of loudspeaker special use, as shown in Figure 4.
From the above, the manufacture method of T-iron of loudspeaker has following advantage among the present invention:
1. in forging process, the diameter of material is to forge for a short time from big, and the chassis divides secondary to be swaged into specific size, make that the density of material can be not overstocked and need annealing in process, therefore, this material does not need from board to remove, thereby can shorten manufacturing time, and realize producing in enormous quantities.
2. because the continuity of manufacture process, thereby can save human resource management, save production cost indirectly.
3. forging is to pressurize according to the physical characteristic of metal material, the material unaccounted-for (MUF) and the machining time that rise so can save the processing of multimachine tool, the more important thing is the profile that flowline that the mobile variation owing to material rises can beautify finished product, make finished product have beautiful appearance.
In sum, among the present invention disclosed T-iron of loudspeaker manufacture method improved and requiredly in the classical production process removed material, through the disappearance of annealing in process, and a kind of continuous production process process that shortens manufacture process, increases output, reduces cost is provided, have the novelty and the market competitiveness, have on the industry simultaneously and value.
In addition, above-mentionedly only the preferred embodiment among the present invention is described in detail, rather than protection scope of the present invention, the variation of different profiles of every T iron and size is as long as adopt manufacturing process among the present invention all should think the protection range that falls into the present invention.
Claims (9)
1. the manufacture method of a T-iron of loudspeaker includes:
A. at first calculate finished weight according to dimensional requirement;
The material of weight such as b. then from bar steel, intercept;
C. carry out the continuous punching press forging process of multisection type at last;
It is characterized in that: the continuous punching press forging process of described multisection type comprises: at first carry out the first time and forge, an end that is about to material forges direct-column portion than minor diameter from major diameter, then carrying out the second time forges, the other end that is about to this material is swaged into bigger chassis, forge for the third time at last, the chassis that is about to the material lower end further is swaged into preliminary dimension.
2. according to the manufacture method of the T-iron of loudspeaker described in the claim 1, it is characterized in that: be provided with two sections different diameters in the die cavity of employed mould in forging in the described first time, forge for the second time and forging for the third time.
3. according to the manufacture method of the T-iron of loudspeaker described in the claim 1, it is characterized in that: on described direct-column portion, can forge groove according to actual state.
4. according to the manufacture method of the T-iron of loudspeaker described in the claim 2, it is characterized in that: respectively be provided with first groove and second groove of two sections diameters in forging in the described first time, forge for the second time and forging for the third time in the employed mould, wherein the central authorities at first groove are provided with teat.
5. according to the manufacture method of the T-iron of loudspeaker described in the claim 3, it is characterized in that: teat and root edge place that the first groove central projection that is provided with in the employed mould in forging in the described first time, forge for the second time and forging is for the third time established are provided with lead angle.
6. according to the manufacture method of the T-iron of loudspeaker described in the claim 1, it is characterized in that: the diameter of second groove on the mould that forges the described second time is greater than the diameter of second groove on the mould in forging for the first time.
7. according to the manufacture method of the T-iron of loudspeaker described in the claim 1, it is characterized in that: the diameter of second groove equals the preliminary dimension of finished product in the described mould that forges for the third time.
8. according to the manufacture method of the T-iron of loudspeaker described in the claim 1, it is characterized in that: calculate finished weight in the foundation dimensional requirement, and after the material of weight such as in bar steel, intercepting, can be in advance carry out flattening course at the head end of this material.
9. according to the manufacture method of the T-iron of loudspeaker described in the claim 1, it is characterized in that: described bar steel is the bar rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02106038 CN1450832A (en) | 2002-04-08 | 2002-04-08 | Method for making T-iron of loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02106038 CN1450832A (en) | 2002-04-08 | 2002-04-08 | Method for making T-iron of loudspeaker |
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| CN1450832A true CN1450832A (en) | 2003-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02106038 Pending CN1450832A (en) | 2002-04-08 | 2002-04-08 | Method for making T-iron of loudspeaker |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103611770A (en) * | 2013-11-19 | 2014-03-05 | 梧州恒声电子科技有限公司 | T iron heading product manufacturing method |
| CN103611797A (en) * | 2013-11-15 | 2014-03-05 | 梧州恒声电子科技有限公司 | T iron heading die |
| CN103611781A (en) * | 2013-11-18 | 2014-03-05 | 梧州恒声电子科技有限公司 | T iron hole-drawing process |
| CN103611794A (en) * | 2013-11-13 | 2014-03-05 | 梧州恒声电子科技有限公司 | Flattening die for T-shaped iron |
| CN103611800A (en) * | 2013-11-15 | 2014-03-05 | 梧州恒声电子科技有限公司 | Flattening die for T-shaped iron |
| CN103617311A (en) * | 2013-11-15 | 2014-03-05 | 梧州恒声电子科技有限公司 | Method for T-shaped iron forging by Deform3D (three-dimensional) simulation |
| CN103611803A (en) * | 2013-11-19 | 2014-03-05 | 梧州恒声电子科技有限公司 | Forming die for machining T-block blank |
| CN103624202A (en) * | 2013-11-11 | 2014-03-12 | 梧州恒声电子科技有限公司 | High line diameter ratio T iron flattening die |
| CN103624203A (en) * | 2013-11-11 | 2014-03-12 | 梧州恒声电子科技有限公司 | Machining method and machining die for T iron with high wire diameter ratio |
| CN111390084A (en) * | 2020-04-08 | 2020-07-10 | 杭州萧山钱江电声器材有限公司 | T iron preparation device and preparation method |
-
2002
- 2002-04-08 CN CN 02106038 patent/CN1450832A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103624202A (en) * | 2013-11-11 | 2014-03-12 | 梧州恒声电子科技有限公司 | High line diameter ratio T iron flattening die |
| CN103624203A (en) * | 2013-11-11 | 2014-03-12 | 梧州恒声电子科技有限公司 | Machining method and machining die for T iron with high wire diameter ratio |
| CN103624203B (en) * | 2013-11-11 | 2016-06-01 | 梧州恒声电子科技有限公司 | The working method of a kind of high line diameter ratio T iron and processing mold |
| CN103611794A (en) * | 2013-11-13 | 2014-03-05 | 梧州恒声电子科技有限公司 | Flattening die for T-shaped iron |
| CN103611797A (en) * | 2013-11-15 | 2014-03-05 | 梧州恒声电子科技有限公司 | T iron heading die |
| CN103611800A (en) * | 2013-11-15 | 2014-03-05 | 梧州恒声电子科技有限公司 | Flattening die for T-shaped iron |
| CN103617311A (en) * | 2013-11-15 | 2014-03-05 | 梧州恒声电子科技有限公司 | Method for T-shaped iron forging by Deform3D (three-dimensional) simulation |
| CN103611781A (en) * | 2013-11-18 | 2014-03-05 | 梧州恒声电子科技有限公司 | T iron hole-drawing process |
| CN103611781B (en) * | 2013-11-18 | 2015-10-28 | 梧州恒声电子科技有限公司 | Hole technique taken out by a kind of T iron |
| CN103611770A (en) * | 2013-11-19 | 2014-03-05 | 梧州恒声电子科技有限公司 | T iron heading product manufacturing method |
| CN103611803A (en) * | 2013-11-19 | 2014-03-05 | 梧州恒声电子科技有限公司 | Forming die for machining T-block blank |
| CN111390084A (en) * | 2020-04-08 | 2020-07-10 | 杭州萧山钱江电声器材有限公司 | T iron preparation device and preparation method |
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