TWM604245U - Twill molding die structure for riveting nut - Google Patents
Twill molding die structure for riveting nut Download PDFInfo
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- TWM604245U TWM604245U TW109209744U TW109209744U TWM604245U TW M604245 U TWM604245 U TW M604245U TW 109209744 U TW109209744 U TW 109209744U TW 109209744 U TW109209744 U TW 109209744U TW M604245 U TWM604245 U TW M604245U
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Abstract
一種鉚合螺帽之斜紋成型模具結構,包含一鍛模座、一第1鍛模、一第2鍛模及一限位件;鍛模座造有一模腔,模腔設有一段螺紋部;第1鍛模造有螺帽模穴及鍛模穴,螺帽模穴穿通鍛模穴,二者之間形成一斜肩部;第2鍛模前端設有抵斜面,內面造有斜紋部及穿通的導孔,斜紋部由複數個斜凸齒所構成;第2鍛模置於鍛模穴內連同第1鍛模置入模腔內,以限位件限制於該模腔中,並令第2鍛模與鍛模穴形成低摩擦力接觸。螺帽胚料的凸緣會在第2鍛模的斜紋部被直接壓塑成型出斜紋凸齒,退模時,第2鍛模隨斜紋部的斜凸齒斜度而輕易自轉,最終令凸緣順利從第2鍛模脫出。A twill forming die structure for a riveting nut includes a forging die seat, a first forging die, a second forging die, and a limiting piece; the forging die seat is made with a cavity, and the cavity is provided with a threaded portion; The first forging die has a nut die cavity and a forging die cavity. The nut die cavity penetrates the forging die cavity, forming a diagonal shoulder between the two; the front end of the second forging die is provided with a beveled surface, and the inner surface has a diagonal line and Through the guide hole, the oblique part is composed of a plurality of oblique convex teeth; the second forging die is placed in the forging die cavity and the first forging die is placed in the cavity, and the limit piece is restricted in the cavity, and the The second forging die and the forging die cavity form low-friction contact. The flange of the nut blank will be directly compression molded on the diagonal part of the second forging die to form diagonal protruding teeth. When the mold is withdrawn, the second forging die will easily rotate on its own with the oblique protruding teeth in the diagonal part, and finally make the protruding The edge was smoothly released from the second forging die.
Description
本創作涉及一種鉚合螺帽成型模具結構,特別指一種在鉚合螺帽的連續成型製程中,可在螺帽成型機上直接形成斜紋凸齒的鉚合螺帽成型模具結構創設。This creation relates to a riveting nut forming mold structure, in particular to the creation of a riveting nut forming mold structure that can directly form diagonal convex teeth on a nut forming machine in the continuous forming process of the riveting nut.
鉚合螺帽是一種應用在金屬薄板材料,經壓鉚後結合在薄板的錨孔上,據以提供螺栓螺合固定的結合構件。如第1圖所示,係習知一種具有斜紋齒部的鉚合螺帽(10),該鉚合螺帽(10)主要包含一螺帽主體(11)及一凸緣(13),一具有內螺紋的螺孔(14)則貫穿該螺帽主體(11)及一凸緣(13),其中該凸緣(13)的外表面環設有等距排列的斜紋凸齒(15),該斜紋凸齒(15)是以角度傾斜的方式凸設於凸緣(13)外表,有別於習知常見的軸向平行凸齒的設計;該斜紋凸齒(15)能提高鉚合螺帽與板材間的摩擦力,除了有避免該鉚合螺帽轉動的作用,更有防止該鉚合螺帽軸向脫出的功能。The riveting nut is a kind of metal sheet material, which is bonded to the anchor hole of the sheet after pressure riveting, so as to provide a connecting member that is screwed and fixed by bolts. As shown in Figure 1, there is a conventional riveting nut (10) with diagonal teeth. The riveting nut (10) mainly includes a nut body (11) and a flange (13). A screw hole (14) with internal threads penetrates the nut main body (11) and a flange (13), wherein the outer surface of the flange (13) is provided with equidistantly arranged diagonal convex teeth (15), The diagonal convex tooth (15) is protruding on the outer surface of the flange (13) in an angle inclined manner, which is different from the conventional design of axial parallel convex tooth; the diagonal convex tooth (15) can improve the riveting screw The friction between the cap and the plate not only has the function of preventing the riveting nut from rotating, but also has the function of preventing the riveting nut from coming off axially.
習見鉚合螺帽的生產製程,主要是配合業界常用的螺帽成型機進行,利用螺帽成型機所設一系列的模具,讓胚料在通過數道鍛壓塑形程序之後,進而成型為具有凸緣外形的螺帽雛形,然而由於螺帽成型機的鍛壓動作大抵為軸向行程,因此該螺帽成型機只適合加工具有直紋凸齒的鉚合螺帽,若是在該習知螺帽成型機中藉傳統模具鍛壓塑形出斜紋凸齒,自然會受限於斜紋凸齒與模具間的外形干涉而難以直接脫膜,強行脫膜之下便容易傷害被加工物或模具,所以目前業界成型斜紋凸齒主要是另外透過滾花製程來達成。The production process of conventional riveted nuts is mainly carried out in conjunction with the commonly used nut forming machines in the industry. A series of molds set up in the nut forming machines are used to make the blanks pass through several forging and shaping procedures, and then form The rudimentary shape of a nut with a flange shape. However, since the forging action of the nut forming machine is mostly an axial stroke, the nut forming machine is only suitable for processing riveted nuts with straight convex teeth. If it is in the conventional nut In the molding machine, the diagonal protruding teeth are formed by forging and pressing with traditional molds. Naturally, they are limited by the interference between the diagonal protruding teeth and the mold and it is difficult to directly release the film. The processed object or the mold will be easily damaged under forced release. In the industry, forming diagonal convex teeth is mainly achieved through a knurling process.
由上述說明可知,該習知斜紋凸齒鉚合螺帽無法於既有的螺帽成型機直接加工成型,需再透過滾花製程的2次加工,因此整體生產效率大打折扣,大幅影響生產量。是以,如何改善斜紋凸齒的成型效率,相關業者有必要加以探討較佳的加工製程或模具設備的改進。From the above description, it can be seen that the conventional twill convex tooth riveted nut cannot be directly processed and formed by the existing nut forming machine, and needs to be processed twice through the knurling process, so the overall production efficiency is greatly reduced, which greatly affects the production volume . Therefore, how to improve the forming efficiency of the diagonal convex teeth, it is necessary for the related industry to explore the better processing process or the improvement of the mold equipment.
緣此,本創作的主要目的在提供一種能在螺帽成型機上直接成型鉚合螺帽斜紋凸齒部的模具結構,能有效增進生產效率,大幅提升斜紋凸齒鉚合螺帽的生產量。For this reason, the main purpose of this creation is to provide a mold structure that can directly form the diagonal convex teeth of a riveted nut on a nut forming machine, which can effectively improve production efficiency and greatly increase the production of diagonal convex riveted nuts. .
為達到上述目的,本創作所提出的技術手段在於提供一種鉚合螺帽之斜紋成型模具結構,包含一鍛模座、一第1鍛模、一第2鍛模及一限位件;該鍛模座造有一模腔,該模腔設有一段螺紋部;該第1鍛模造有螺帽模穴及鍛模穴,螺帽模穴穿通鍛模穴,二者之間形成一斜肩部;該第2鍛模是置於該鍛模穴內,該第2鍛模前端設有抵斜面,內面造有斜紋部及穿通的導孔,該斜紋部由複數個斜凸齒所構成;該第1鍛模連同第2鍛模置入該模腔內,配合限位件將第1鍛模與第2鍛模限制於該模腔中,並令該第2鍛模與該鍛模穴形成低摩擦力接觸。In order to achieve the above-mentioned purpose, the technical means proposed in this creation is to provide a twill forming die structure for riveting nuts, including a forging die seat, a first forging die, a second forging die and a stopper; The mold base is made with a mold cavity, the mold cavity is provided with a threaded portion; the first forging mold is made with a nut cavity and a forging die cavity, the nut cavity passes through the forging die cavity, and an oblique shoulder is formed between the two; The second forging die is placed in the forging die cavity, the front end of the second forging die is provided with a beveled surface, the inner surface is formed with a diagonal portion and a through hole, and the diagonal portion is composed of a plurality of diagonal convex teeth; The first forging die and the second forging die are placed in the cavity, and the stopper is matched to restrict the first forging die and the second forging die in the cavity, and the second forging die and the forging die cavity are formed Low friction contact.
前述鉚合螺帽之斜紋成型模具結構,其中該抵斜面與斜肩部的斜度相對應。In the aforementioned diagonal pattern forming mold structure of the riveting nut, the inclined surface corresponds to the inclination of the inclined shoulder.
前述鉚合螺帽之斜紋成型模具結構,其中該第2鍛模外壁與鍛模穴內壁非接觸。In the structure of the twill forming die for the riveting nut, the outer wall of the second forging die is not in contact with the inner wall of the forging die cavity.
前述鉚合螺帽之斜紋成型模具結構,其中該第2鍛模整體高度大於99.5%且小於鍛模穴的深度。In the above-mentioned twill molding die structure of the riveting nut, the overall height of the second forging die is greater than 99.5% and less than the depth of the forging die cavity.
前述鉚合螺帽之斜紋成型模具結構,其中該斜凸齒的傾斜角度介於35~45°之間。In the above-mentioned diagonal pattern forming mold structure of the riveting nut, the inclination angle of the diagonal convex teeth is between 35° and 45°.
螺帽胚料的凸緣會在第2鍛模的斜紋部被直接壓塑成型出斜紋凸齒,退模時,因第2鍛模與鍛模穴之間為低摩擦力接觸,是以第2鍛模能隨斜紋部的斜凸齒斜度而輕易自轉,最終令凸緣順利從第2鍛模脫出。據此,本創作突破了鉚合螺帽的斜紋凸齒無法在習知螺帽加工機直接完成加工的缺失更能因省略滾花製程的2次加工,進而大幅提昇斜紋鉚合螺帽的生產量。The flange of the nut blank will be directly compression molded to form the diagonal protruding teeth on the diagonal part of the second forging die. When the mold is withdrawn, the second forging die is in low friction contact with the forging die cavity. 2 The forging die can easily rotate with the inclination of the oblique convex teeth of the diagonal part, and finally the flange is smoothly released from the second forging die. Based on this, this creation breaks through the lack of the diagonal convex teeth of the riveted nut that cannot be directly processed by the conventional nut processing machine. It can also omit the secondary processing of the knurling process, thereby greatly improving the production of the diagonal riveted nut. the amount.
為使本創作之結構特徵、功效及其他優點能進一步被瞭 解,茲以較佳實施例並配合圖式詳細說明如后。 In order to make the structural features, efficacy and other advantages of this creation can be further improved Solution, a detailed description is given below with preferred embodiments and drawings.
首先,請參考第2圖所示,是揭示本創作鉚合螺帽之斜紋成型模具結構的較佳實施例,主要由一鍛模座(20)、一第1鍛模(30)及一第2鍛模(40)所構成;該鍛模座(20)造有一模腔(21),提供容置該第1鍛模(30)及一第2鍛模(40),該第1鍛模(30)設有一鍛模穴(31)提供容置該第2鍛模(40),該第2鍛模(40)外形與該鍛模穴(31)相近,但預設有一尺寸公差;該模腔(21)內靠近開放端設有一段螺紋部(22),配合一限位件(23)螺設於該螺紋部(22),將上述第1鍛模(30)及一第2鍛模(40)限制於該模腔(21)內。First of all, please refer to Figure 2, which is a preferred embodiment of the structure of the twill forming die for the creative riveting nut. It is mainly composed of a forging die holder (20), a first forging die (30) and a first forging die. 2 forging die (40); the forging die seat (20) is made with a cavity (21), which is provided to accommodate the first forging die (30) and a second forging die (40), the first forging die (30) A forging die cavity (31) is provided for accommodating the second forging die (40), the second forging die (40) is similar in appearance to the forging die cavity (31), but a dimensional tolerance is preset; the A threaded part (22) is provided in the cavity (21) near the open end, and a stopper (23) is screwed on the threaded part (22), and the first forging die (30) and the second forging The mold (40) is confined in the cavity (21).
請再參考第3圖所示,是第2圖所示本創作鉚合螺帽之斜紋成型模具結構的結構剖面示意,上述該第1鍛模(30)造有鍛模穴(31)及一螺帽模穴(32),螺帽模穴(32)穿通鍛模穴(31),二者之間形成一斜肩部(33)。該第2鍛模(40)主體為中空圓柱構形,第2鍛模(40)前端設有抵斜面(41),與斜肩部(33)斜度相對應,內面造有一斜紋部(42)及穿通的導孔(43),該斜紋部(42)為將螺帽胚料的凸緣成型出斜紋凸齒的部位,斜紋部(42)由複數個斜凸齒(421)所構成,且該斜凸齒(421)傾斜介於35~45度之間;第2鍛模(40)的外外壁徑圍與鍛模穴(31)內壁非相對應,本實施例以徑圍從抵斜面(41)向後端收束5°做說明,亦即令該第2鍛模(40)外壁與鍛模穴(31)內壁外形不相對應而互不接觸,此外,第2鍛模(40)的整體高度是小於鍛模穴(31)深度,且,大於99.5%的鍛模穴(31)深度,使該第2鍛模(40)與該鍛模穴(31)形成低摩擦力結合。Please refer to Figure 3 again, which is a schematic cross-section of the structure of the twill molding die structure of the creative riveting nut shown in Figure 2. The first forging die (30) has a forging die cavity (31) and a The nut die cavity (32), the nut die cavity (32) penetrate the forging die cavity (31), and an oblique shoulder (33) is formed between the two. The main body of the second forging die (40) has a hollow cylindrical configuration. The front end of the second forging die (40) is provided with an inclined surface (41) corresponding to the inclination of the oblique shoulder portion (33). 42) and the through hole (43), the diagonal portion (42) is the part where the flange of the nut blank is formed into diagonal convex teeth, the diagonal portion (42) is composed of a plurality of diagonal convex teeth (421) , And the oblique convex tooth (421) is inclined between 35 and 45 degrees; the outer wall diameter of the second forging die (40) does not correspond to the inner wall of the forging die cavity (31). In this embodiment, the diameter It is explained that the outer wall of the second forging die (40) and the inner wall of the forging die cavity (31) do not correspond to each other and do not contact each other. In addition, the second forging die The overall height of (40) is less than the depth of the forging die cavity (31) and greater than 99.5% of the depth of the forging die cavity (31), so that the second forging die (40) and the forging die cavity (31) form low friction Combination of forces.
請再參考第4圖所示,是揭示本創作較佳實施例的鍛壓動作示意。螺帽加工機的鍛壓過程主要分成兩個階段,首先是前沖頭、後沖頭同時對螺帽胚料擠壓的沖模階段,接著是後充頭將螺帽胚料推出成型模穴的退模階段;在本圖中是示出利用本創作之模具在沖模階段將螺帽胚料(50)擠壓成型的示意,其中該螺帽胚料(50)在沖頭做動之前已被送料機構置入於螺帽模穴(32)中,螺帽胚料(50)在前沖頭(60a)與後沖頭(60b)擠壓之下,令凸緣(12)於第2鍛模(40)處被壓塑成型出斜紋凸齒(52)。Please refer to Figure 4 again, which is a schematic diagram of the forging action of the preferred embodiment of the present creation. The forging process of the nut processing machine is mainly divided into two stages. The first is the die stage in which the front punch and the back punch simultaneously squeeze the nut blank, and then the back filling head pushes the nut blank out of the forming cavity. Die stage; in this figure is a schematic diagram showing the use of this creative die to extrude the nut blank (50) in the die stage, where the nut blank (50) has been fed before the punch moves The mechanism is placed in the nut die cavity (32), the nut blank (50) is squeezed by the front punch (60a) and the rear punch (60b), so that the flange (12) is placed on the second forging die The diagonal convex teeth (52) are formed by compression molding at (40).
最後請參考第5圖所示,是揭示本創作較佳實施例如何順利完成退模動作的示意。圖中示出該螺帽胚料(50)是被後沖頭(60b)推出螺帽模穴(32),過程中,在螺帽胚料(50)不轉動的狀態下,該第2鍛模(40)因與鍛模穴(31)之間為低摩擦力接觸,是以第2鍛模(40)整體能隨斜紋部(42)的斜凸齒斜度而輕易自轉,最終令螺帽胚料(50)的凸緣(12)順利從第2鍛模(40)脫出,進而達到能在螺帽加工機上直接成型鉚合螺帽斜紋凸齒的加工,同時避免傷害到胚料的斜紋凸齒(52)及該模具斜紋部的最主要目的。Finally, please refer to Fig. 5, which is a schematic diagram showing how the preferred embodiment of this creation can successfully complete the ejection action. The figure shows that the nut blank (50) is pushed out of the nut mold cavity (32) by the back punch (60b). In the process, the second forging is performed when the nut blank (50) is not rotating. Due to the low friction contact between the die (40) and the forging die cavity (31), the second forging die (40) as a whole can easily rotate with the inclination of the inclined convex teeth of the diagonal portion (42), and finally make the screw The flange (12) of the cap blank (50) is smoothly released from the second forging die (40), so as to directly form the diagonal convex teeth of the riveted nut on the nut processing machine, and avoid damage to the embryo. The main purpose of the diagonal convex teeth (52) of the material and the diagonal part of the mold.
透過上述實施例說明之後,可以輕易理解到,本創作至少具有以下數個優點:1、本創作鉚合螺帽之斜紋成型模具結構,突破了習知螺帽加工機無法順利完成斜紋凸齒加工的缺失。2、本創作的應用,省略習知斜紋鉚合螺帽的滾花製程2次加工,實際縮短加工程序與時間,大幅提昇斜紋鉚合螺帽的生產量。After the description of the above embodiments, it can be easily understood that this creation has at least the following advantages: 1. The twill molding die structure of the riveting nut of this creation breaks through the inability of the conventional nut processing machine to successfully complete the twill convex tooth processing Missing. 2. In the application of this creation, the second processing of the knurling process of the conventional twill riveting nut is omitted, which actually shortens the processing procedure and time, and greatly increases the production volume of the twill riveting nut.
綜上所述,本創作鉚合螺帽之斜紋成型模具結構,確實已達到預設的目的,實已符合產業的需求,爰依法提出專利申請,惟,本創作雖已以前述較佳之實施例揭示,然而圖式所繪示的尺寸、形狀、或數量等並非用以限定本創作,任何熟悉此技藝者,在不脫離本創作之精神和範圍內,當可能加以潤飾或修改,因此本創作保護範圍當視後附的申請專利範圍所界定者為準。To sum up, the structure of the twill molding die for the riveting nut of this creation has indeed achieved the preset purpose, and it has actually met the needs of the industry. A patent application was filed in accordance with the law, but this creation has been based on the aforementioned preferred embodiment Disclosure, however, the size, shape, or quantity shown in the drawings are not used to limit the creation. Anyone familiar with this technique may retouch or modify it without departing from the spirit and scope of this creation. Therefore, this creation The scope of protection shall be subject to the scope of the attached patent application.
10:鉚合螺帽
11:螺帽主體
12:凸緣
13:螺孔
14:斜紋凸齒
20:鍛模座
21:模腔
22:螺紋部
23:限位件
30:第1鍛模
31:鍛模穴
32:螺帽模穴
33:斜肩部
40:第2鍛模
41:抵斜面
42:斜紋部
421:斜凸齒
43:導孔
50:螺帽胚料
51:凸緣
52:斜紋凸齒
60a:前沖頭
60b:後沖頭10: Riveted nut
11: Nut body
12: flange
13: screw hole
14: diagonal convex teeth
20: Forging die seat
21: Mould cavity
22: Threaded part
23: limit piece
30: The first forging die
31: Forging die cavity
32: Nut mold cavity
33: oblique shoulder
40: 2nd forging die
41: Reach the slope
42: Twill part
421: Oblique convex tooth
43: pilot hole
50: Nut blank
51: flange
52:
第1圖 是習見斜紋鉚合螺帽的立體示意圖。 第2圖 是本創作較佳實施例的結構分解示意圖。 第3圖 是本創作較佳實施例的結構剖面示意圖。 第4圖 是將具有凸緣的螺帽胚料擠壓出斜紋部的示意圖。 第5圖 是形成斜紋部後的螺帽退出模穴時,第2鍛模的動作示意圖。 Figure 1 is a three-dimensional schematic diagram of a conventional diagonal riveted nut. Figure 2 is an exploded schematic diagram of the structure of the preferred embodiment of the authoring. Figure 3 is a schematic cross-sectional view of the structure of the preferred embodiment of this creation. Figure 4 is a schematic diagram of extruding the nut blank with flanges out of the diagonal part. Fig. 5 is a schematic diagram of the operation of the second forging die when the nut with the diagonal pattern exits the cavity.
20:鍛模座 20: Forging die seat
21:模腔 21: Mould cavity
22:螺紋部 22: Threaded part
23:限位件 23: limit piece
30:第1鍛模 30: The first forging die
31:鍛模穴 31: Forging die cavity
32:螺帽模穴 32: Nut mold cavity
33:斜肩部 33: oblique shoulder
40:第2鍛模 40: 2nd forging die
41:抵斜面 41: Reach the slope
42:斜紋部 42: Twill part
421:斜凸齒 421: Oblique convex tooth
43:導孔 43: pilot hole
Claims (5)
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TW109209744U TWM604245U (en) | 2020-07-30 | 2020-07-30 | Twill molding die structure for riveting nut |
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TW109209744U TWM604245U (en) | 2020-07-30 | 2020-07-30 | Twill molding die structure for riveting nut |
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Publication Number | Publication Date |
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TWM604245U true TWM604245U (en) | 2020-11-21 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI722949B (en) * | 2020-07-30 | 2021-03-21 | 瑋瑩實業有限公司 | Twill molding die structure for riveting nut |
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2020
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI722949B (en) * | 2020-07-30 | 2021-03-21 | 瑋瑩實業有限公司 | Twill molding die structure for riveting nut |
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