TW201412425A - Ball valve body manufacturing method - Google Patents

Abstract

The invention is a ball valve body manufacturing method comprising steps: firstly performing a fist stamping on a metal tube body to form an ellipse hollow body, and then performing a second stamping as a final compression procedure, thereby manufacturing the ellipse body into a spherical valve body.

Description

球閥體製造方法 Ball valve body manufacturing method

本發明係關於球閥的製造方法，尤指以沖壓方式成型的球閥胚體，秉除鍛造方式的球閥製造方法。 The present invention relates to a method of manufacturing a ball valve, and more particularly to a ball valve body formed by a stamping method, and a ball valve manufacturing method of a forging method.

按，先行所知，球閥應用於液體開關，是業界常普遍使用的開關配件，大量而廣泛的使用著，而其成型方式有鍛造成型、以沖壓成型、滾壓成型等，以製造出一種空心球閥之形體。 According to the prior knowledge, the ball valve is applied to the liquid switch. It is a commonly used switch accessory in the industry. It is widely used widely, and its forming method is forging type, stamping forming, roll forming, etc., to create a hollow. The shape of the ball valve.

如專利號：I215769「球閥的製造方法」，其製造方法步驟為：製模：以第一模具將防火材質之原料製出第一基體，該第一基體係包括一弧形體內填物部分，以及該內填物外側凸設有複數之定位點，且至少有一定位點位於該內填物線對稱之軸線上，該定位點係為中心點；臘模：將該第一基體置於第二模具內，並以第一基體之定位點與第二模具定位，據以在第一基體外包覆預設厚度之臘材質表層，進而形成第二基體；精密鑄造：利用第二基體浸泡於耐高溫之第三模具的原料中，以沾漿製作殼膜之方式形成第三模具，再灌入高溫金屬液體於第三模具內，令內填物外包覆金屬材質之殼體，進而形成第三基體；定位點修補：將第三基體之所有定位點去除，並填補殼體 上除了中心點以外之其它定位點缺口；表面球體加工：將第三基體表面加工，提高第三基體表面之真圓度；剖球溝：以殼體上中心點缺口為參考點，在殼體相反端剖設一槽溝；中心點修補：填補殼體上中心點之缺口處；表面拋光：將第三基體表面透過拋光處理，令第三基體形成具光滑外表之成品本體。 For example, Patent No.: I215769 "Manufacturing Method of Ball Valve", the manufacturing method step is: molding: the first mold is made of the raw material of the fireproof material by the first mold, and the first base system includes an arc-shaped body filling portion. And positioning a plurality of positioning points on the outer side of the inner filling, and at least one positioning point is located on the axis of the inner filling line symmetry, the positioning point is a center point; the wax mold: placing the first basic body in the second In the mold, and positioning the first substrate with the second mold, according to the surface of the first substrate is coated with a predetermined thickness of the wax material surface layer to form a second substrate; precision casting: using the second substrate to soak in the resistance In the raw material of the third mold of high temperature, the third mold is formed by dipping the shell film, and then the high temperature metal liquid is poured into the third mold, so that the inner filler is covered with the metal material shell, thereby forming the first Three-matrix; positioning point repair: remove all the positioning points of the third substrate, and fill the shell Other notch points other than the center point; surface sphere processing: processing the surface of the third substrate to improve the roundness of the surface of the third substrate; splitting the ball groove: taking the center point of the casing as the reference point, in the casing The opposite end is provided with a groove; the center point is repaired: the gap at the center point on the casing is filled; the surface is polished: the surface of the third substrate is polished, and the third substrate is formed into a finished body having a smooth appearance.

又，專利號：I244516「球閥體之製造方法」，製造步驟為：一肧管為金屬管110；對該金屬管進行一擴管程序，用以擴大該肧管之內徑及外徑；放置該肧管於一下模具，其中該下模具具有一下半球模室及一下開口心軸，該肧管係放置於該下半球模室，且對準該下開口心軸；以一上模具朝向該下模具靠攏，進行一縮口壓縮程序成縮口管111，於肧管之二端形成圓弧導角後停止壓縮，其中該上模具具有一上半球模室及一上開口心軸，該肧管係位於該上半球模室，且對準該上開口心軸；及持續以該上模具朝向該下模具靠攏，進行一最終壓縮程序，將該肧管壓製成該球閥體120。 Further, Patent No.: I244516 "Manufacturing Method of Ball Valve Body", the manufacturing steps are: a manifold is a metal tube 110; a pipe expansion procedure is performed on the metal tube to expand the inner diameter and the outer diameter of the manifold; The manifold is in a lower mold, wherein the lower mold has a lower hemispherical mold chamber and a lower open mandrel, and the manifold is placed in the lower hemispherical mold chamber and aligned with the lower opening mandrel; with an upper mold facing the lower portion The mold is closed, and a shrinking compression process is performed to form the shrink tube 111, and the compression is stopped after forming the arc guide angle at the two ends of the manifold, wherein the upper mold has an upper hemispherical mold chamber and an upper open mandrel, the manifold Positioned in the upper hemispherical mold chamber and aligned with the upper open mandrel; and continuously with the upper mold facing the lower mold, performing a final compression process to press the manifold into the ball valve body 120.

以上球閥製造方法缺點為，專利號：I215769的製程工序過多，而專利號：I244516為須先沖壓擴管再沖壓成球閥體，此成型方式不良率甚高；該金屬管經第一次衝壓擴大圓柱狀，該管壁變薄，殼體並非均勻，在第二次沖壓的縮口壓縮程序後 ，如第六圖所示，該金屬管110僅在上下端縮口壓縮為縮口管111，中間管壁厚度不均，且縮口壓縮仍保留有一段長度的直管部111a，如遇到須要較薄管壁的球閥尺寸，在第三次成球形的直接沖壓時，其沖壓行程較長，管壁容易因擠壓變形；因此，本案發明人曾針對上述缺失而改良的「球閥製造方法」，精確的製作，品質良率提高；有鑑於此，本案發明人乃基於上述弊端，現申請人再接再厲，針對上述習知缺失，乃積極努力開發、研究，並累積多年製造、生產經驗，而終於再次提高良率的本發明產生。 The disadvantages of the above ball valve manufacturing method are that the patent number: I215769 has too many manufacturing processes, and the patent number: I244516 is required to be firstly stamped and expanded into a ball valve body, and the molding method has a high defect rate; the metal pipe is expanded by the first punching Cylindrical, the wall of the tube is thinner and the casing is not uniform, after the second compression of the necking compression process As shown in the sixth figure, the metal tube 110 is only compressed at the upper and lower ends into a shrink tube 111, and the thickness of the middle tube wall is uneven, and the neck portion 111a is retained for a length of compression. The size of the ball valve of the thinner tube wall is required. When the third ball is directly punched, the stamping stroke is long, and the pipe wall is easily deformed by extrusion; therefore, the inventor of the present invention has improved the "ball valve manufacturing method" In view of this, the inventor of this case is based on the above drawbacks, and the applicant is making persistent efforts to develop and research and accumulate years of manufacturing and production experience. The present invention, which finally improves the yield again, is produced.

即，本發明一種球閥胚體製造方法，其主要目的係使管壁厚度平均的漸進沖壓方式產生球形閥體，成型後之球閥品質佳、弧度及厚薄正確，良率高易進形後續加工與組裝。 That is, the ball seed body manufacturing method of the present invention mainly aims to produce a spherical valve body by a progressive stamping method with an average thickness of the pipe wall. The formed ball valve has good quality, correct curvature and thickness, and high yield and easy subsequent processing and assembly.

本發明一種球閥體製造方法，其包含以下步驟： A ball valve body manufacturing method according to the present invention comprises the following steps:

具有一金屬之管體，該管體為圓柱形，將金屬管體置於一上模具與一下模具之間，該上模具設有半橢圓形凹入槽，下模具亦設有相對稱之半橢圓形凹入槽，上、下模具具有下、上開口心軸，該金屬管體係放置於該下模具之半橢圓形凹入槽模室，且對準該下開口心軸，以一上模具朝向該下模具靠攏，進行一第一次橢圓形壓縮程序，使其金屬管體形成橢圓形空心體；再將橢圓空心體轉置於另一組下模具上，其中，該下模具 中間設有一圓形凹槽與上開口心軸，一上模具設有與下模具相對稱之圓凹槽與下開口心軸，該金屬管體係位於該圓凹槽，且對準該上開口心軸，持續以該上模具朝向該下模具靠攏，進行一最終壓縮程序，將該金屬管體壓製成該球閥體；最後，將球形閥體加以去毛邊，並作研磨光滑面即完成製作。 The utility model has a metal pipe body which is cylindrical and places the metal pipe body between an upper die and a lower die. The upper die is provided with a semi-elliptical concave groove, and the lower die is also provided with a symmetrical half. An elliptical concave groove, the upper and lower molds have lower and upper open mandrels, and the metal pipe system is placed in the semi-elliptical concave groove mold chamber of the lower mold, and is aligned with the lower opening mandrel to form an upper mold Approaching the lower mold, performing a first elliptical compression process to form the metal tube body into an elliptical hollow body; and then transferring the elliptical hollow body to another set of lower molds, wherein the lower mold a circular groove and an upper opening mandrel are disposed in the middle, and an upper mold is provided with a circular groove and a lower opening mandrel symmetrical with the lower mold, the metal pipe system is located in the circular groove, and is aligned with the upper opening The shaft continues to move toward the lower mold with the upper mold, and a final compression process is performed to press the metal tube body into the ball valve body. Finally, the spherical valve body is deburred and polished to form a smooth surface.

為了充分瞭解本發明，以下將列舉較佳實例並配合附圖式作詳細說明，茲再配合本發明較佳實施例之圖式進一步說明如后，以期能使熟悉本發明相關技術之人士，得依本說明書之陳述據以實施，且其並非用以限定本發明之技術範圍。 In order to fully understand the present invention, the preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The statements in this specification are hereby implemented and are not intended to limit the technical scope of the invention.

首先，敬請配合參閱如第一、二圖所示，本發明一種球閥體製造方法，其製作方法如下所述：a、以圓柱金屬管之金屬管體A置放於一下模具2上方，該下模具2內有半橢圓形凹入槽21與上開口心軸22，一上模具1位於下模具2正上方，上模具1內有半橢圓形凹入槽11與下開口心軸12，以上模具1及下模具2壓合縮小金屬管體A成橢圓體，上、下模具1、2以上下同時沖壓將金屬管體A沖壓成橢圓形，成為具有上下開口的橢圓空心體B；b、敬請參閱如第三、四圖所示，將橢圓空心體B轉置於 另一組下模具3上，該下模具3中間設有一圓形凹槽31與上開口心軸32，一上模具4設有與下模具3相對稱之圓凹槽41與下開口心軸42，將下模具3往上沖壓與上模具4相閉合，將橢圓空心體B沖壓成球形閥體C，該球形閥體C內有圓形內壁，並且仍有對稱的上下一缺口；c、將球形閥體C加以去毛邊，並作研磨光滑面即完成製作。 First, please refer to the method for manufacturing the ball valve body according to the first and second figures. The manufacturing method of the ball valve body is as follows: a. The metal pipe body A of the cylindrical metal pipe is placed above the lower mold 2. The lower mold 2 has a semi-elliptical concave groove 21 and an upper opening mandrel 22, an upper mold 1 is located directly above the lower mold 2, and the upper mold 1 has a semi-elliptical concave groove 11 and a lower opening mandrel 12, The mold 1 and the lower mold 2 are pressed and contracted to reduce the metal pipe body A into an ellipsoid, and the upper and lower molds 1 and 2 are simultaneously punched to press the metal pipe body A into an elliptical shape to become an elliptical hollow body B having upper and lower openings; b, Please refer to the elliptical hollow body B as shown in the third and fourth figures. On the other lower mold 3, a circular groove 31 and an upper opening mandrel 32 are disposed in the middle of the lower mold 3. An upper mold 4 is provided with a circular groove 41 and a lower opening mandrel 42 which are symmetrical with the lower mold 3. The lower mold 3 is punched up and closed with the upper mold 4, and the elliptical hollow body B is punched into a spherical valve body C, which has a circular inner wall and has a symmetric upper and lower notch; c. The spherical valve body C is deburred and finished by grinding a smooth surface.

由於本發明係將金屬管體A先沖壓縮小為橢圓空心體B，再沖壓成球形閥體C，其管壁厚度均勻且已為高度較短之橢圓球體半成型，管壁在成為圓球狀的擴大沖壓後，不會有管壁變形扭曲的情形發生，因此，經最後沖壓成球形閥體C後，其形體一致且整體之弧度對稱，均勻一致以提高其良率；本發明球閥體製造方法乃有別於先前技術之發明專利，習知皆採用高度較高的沖壓縮口成型後再沖壓為球閥，如遇到須要管壁較薄的球閥尺寸時，常會在最後沖壓成球體間有管壁扭曲變形的情形發生，不僅在最後上沖、下沖壓動作，會造成球閥上方與下方不一致，其不良率高；先前技術提及之專利案雖是先成型兩半球閥，形狀較一致，但是其屬於多次沖壓再焊接成球體，須要多次的工序且加工成本過高；本發明係以球形閥體C具有外圓(即球閥外表)及內壁，如第五圖所示，由於內壁逐漸次沖壓成型，可增強其結構性； 本發明一種球閥體製造方法，可以提升產業價值，具有實質的效用，為此懇請 貴審查委員，秉著公正客觀精神，詳加細審，並鼓勵國人發明初衷，賜予本案專利，則申請人至感德便。 Since the invention firstly presses and shrinks the metal pipe body A into an elliptical hollow body B, and then presses it into a spherical valve body C, the elliptical sphere having a uniform wall thickness and a short height is semi-formed, and the pipe wall becomes a spherical shape. After the enlarged stamping, there is no deformation and distortion of the pipe wall. Therefore, after being finally punched into the spherical valve body C, the shape is uniform and the overall curvature is symmetrical, uniform and uniform to improve the yield; the ball valve body manufacturing of the present invention The method is different from the invention patent of the prior art. It is conventionally formed by using a high-pressure punching port and then stamped into a ball valve. If a ball valve having a thin wall is required, it is often found in the final punched ball. The distortion of the pipe wall occurs, not only in the last upper punching and lower punching action, but also causes the ball valve to be inconsistent above and below the ball valve, and the defect rate is high; although the patent mentioned in the prior art is the first forming two hemispherical valves, the shape is relatively uniform. However, it belongs to multiple stamping and then welding into a sphere, which requires multiple steps and the processing cost is too high; the invention has a spherical valve body C having an outer circle (ie, a ball valve appearance) and an inner wall, as shown in the fifth figure. It is shown that the inner wall is gradually stamped and formed to enhance its structural properties; The invention discloses a method for manufacturing a ball valve body, which can enhance the industrial value and has substantial utility. For this reason, the reviewing committee is invited to conduct a detailed review and impartial examination, and encourage the Chinese to invent the original intention and give the patent in this case. Feeling the virtues.

綜上所陳，僅為本發明之一較佳實施例而已，並非用來限定本發明實施之範圍。即凡依本發明申請專利範圍所做之均等變化與修飾，皆為本發明專利範圍所涵蓋。 In conclusion, it is only a preferred embodiment of the invention, and is not intended to limit the scope of the invention. That is, the equivalent changes and modifications made by the scope of the patent application of the present invention are covered by the scope of the invention.

A‧‧‧金屬管體 A‧‧‧Metal pipe body

B‧‧‧橢圓空心體 B‧‧‧elliptical hollow body

C‧‧‧球形閥體 C‧‧‧Spherical valve body

1‧‧‧上模具 1‧‧‧Upper mold

11‧‧‧半橢圓形凹入槽 11‧‧‧Semi-elliptical concave groove

12‧‧‧下開口心軸 12‧‧‧Under opening mandrel

2‧‧‧下模具 2‧‧‧ Lower mold

21‧‧‧半橢圓形凹入槽 21‧‧‧Semi-elliptical concave groove

22‧‧‧上開口心軸 22‧‧‧Upper mandrel

3‧‧‧下模具 3‧‧‧Next mold

31‧‧‧圓形凹槽 31‧‧‧Circular groove

32‧‧‧上開口心軸 32‧‧‧Upper mandrel

4‧‧‧上模具 4‧‧‧Upper mold

41‧‧‧圓凹槽 41‧‧‧round groove

42‧‧‧下開口心軸 42‧‧‧Under opening mandrel

第一圖：本發明金屬管體置入模具實施圖。 First: The implementation diagram of the metal pipe body of the present invention placed in a mold.

第二圖：本發明橢圓體成形實施圖。 Second Figure: An ellipsoidal forming implementation of the present invention.

第三圖：本發明由橢圓體到球形體的差距實施圖。 Third Figure: The implementation of the present invention from the ellipsoid to the spherical body.

第四圖：本發明球形閥體成形實施圖。 Figure 4 is a view showing the forming process of the spherical valve body of the present invention.

第五圖：本發明球形閥體剖視圖。 Figure 5 is a cross-sectional view of the spherical valve body of the present invention.

第六圖：習知由縮口壓縮體到球形體的差距實施圖。 Figure 6: A diagram showing the implementation of the gap between the compressed body and the spherical body.

1‧‧‧上模具 1‧‧‧Upper mold

11‧‧‧半橢圓形凹入槽 11‧‧‧Semi-elliptical concave groove

12‧‧‧下開口心軸 12‧‧‧Under opening mandrel

2‧‧‧下模具 2‧‧‧ Lower mold

21‧‧‧半橢圓形凹入槽 21‧‧‧Semi-elliptical concave groove

22‧‧‧上開口心軸 22‧‧‧Upper mandrel

B‧‧‧橢圓空心體 B‧‧‧elliptical hollow body

Claims (1)

一種球閥體製造方法，a、具有一金屬之金屬管體，該金屬管體為圓柱形，將金屬管體置於一上模具與一下模具之間，該上模具設有半橢圓形凹入槽，下模具亦設有相對稱之半橢圓形凹入槽，上、下模具具有下、上開口心軸，該金屬管體係放置於下模具之半橢圓形凹入槽模室，且對準該下開口心軸；以一上模具朝向該下模具靠攏，進行第一次橢圓形壓縮程序，形成為橢圓空心體；b、將橢圓空心體轉置於另一組下模具上，該下模具中間設有一圓形凹槽與上開口心軸，一上模具設有與下模具相對稱之圓凹槽與下開口心軸，將下模具往上沖壓與上模具相閉合，即可將橢圓空心體沖壓成球形閥體，該球形閥體內有圓形內壁，仍有對稱的上下一缺口；c、將球形閥體加以去除毛邊，並作研磨光滑面即完成製作。 A ball valve body manufacturing method, a, having a metal metal pipe body, the metal pipe body is cylindrical, and the metal pipe body is placed between an upper die and a lower die, the upper die is provided with a semi-elliptical concave groove The lower mold is also provided with a relatively semi-elliptical concave groove, and the upper and lower molds have lower and upper open mandrels, and the metal pipe system is placed in the semi-elliptical concave groove mold chamber of the lower mold, and the alignment is aligned a lower opening mandrel; with an upper mold facing the lower mold, performing a first elliptical compression process to form an elliptical hollow body; b, transferring the elliptical hollow body to another set of lower molds, the middle of the lower mold A circular groove and an upper opening mandrel are provided, and an upper mold is provided with a circular groove and a lower opening mandrel symmetrical with the lower mold, and the lower mold is punched upward and closed with the upper mold, so that the elliptical hollow body can be closed. Stamped into a spherical valve body, the spherical valve body has a circular inner wall, and there is still a symmetrical upper and lower notch; c, the spherical valve body is removed to remove the burrs, and the smooth surface is finished.