TWI716785B

TWI716785B - Composite screw welding method

Info

Publication number: TWI716785B
Application number: TW107145354A
Authority: TW
Inventors: 蘇國材; 蘇振榮
Original assignee: 慶達科技股份有限公司
Priority date: 2018-12-14
Filing date: 2018-12-14
Publication date: 2021-01-21
Also published as: TW202021714A

Abstract

A composite screw welding method includes a preparation step, a welding step and a forming step. The preparation step is to prepare a head section and a tail section that are provided with different materials respectively. Further, the welding step is to contact the tail and head sections tightly and align the tail and head sections in the same axis. After that, a welding machine is positioned above the connection of the tail and head sections while the tail and head sections are rotated in the same direction so as to weld a periphery of the connection of the tail and head sections, thereby combining the tail and head sections into a composite blank. Meanwhile, no redundant waste is produced from the connection of the tail and head sections. Finally, the composite blank can be processed in the forming step afterwards. Thus, the processing procedure is reduced effectively to simultaneously lower the manufacturing cost and ensure the preferable manufacturing quality.

Description

複合螺絲之焊接方法Welding method of compound screw

本發明是關於一種焊接方法，特別是指一種複合螺絲之焊接方法。The present invention relates to a welding method, in particular to a welding method of composite screws.

查，複合螺絲是將兩種材質結合在一起的螺絲，通常就是頭段與尾段兩部分的材質不同，其原因在於尾段需要較高的硬度以鑽攻過鐵板等材質，會以硬度較高之材質為主，而該頭段則因為鎖合後裸露在外，需要較佳防鏽性能，所以該頭段將使用不銹鋼材質為準，如此將可使該複合螺絲同時兼具防鏽及高強度鑽攻等功能，以達到較佳之使用範圍與效果。Check that the compound screw is a screw that combines two materials. Usually, the materials of the head section and the tail section are different. The reason is that the tail section needs higher hardness to drill through the iron plate and other materials. The higher material is the main material, and the head section is exposed to the outside after being locked and needs better anti-rust performance, so the head section will be made of stainless steel, which will make the composite screw have both anti-rust and High-strength drilling and tapping functions to achieve a better use range and effect.

參閱圖1、圖2，習知複合螺絲製造方法1其依序包含有備料步驟11，焊接步驟12，整理步驟13及螺牙成型步驟14；其中，該備料步驟11係具備有不同材質之母材2，該母材2分別成形出一平整周緣之頭段21及一尾段22；其中，該頭段21之一端形成有一螺頭211，而相反於該螺頭211之另一端則呈一平整之焊接面212，另，該尾段22則具有一鑽尾221，以及一設於該鑽尾221另一端之連接面222；另，當該焊接步驟212進行時，即將該螺頭211予以固定後，並且透過帶動該尾段22往該頭段21相互摩擦，以達到該頭段21及尾段22相互結合呈一複合胚料2A之態樣，再經由該整理步驟13將該焊接處所形成之多餘材料予以去除，使該焊接處形成一平整周緣；最後，再進行一螺牙成型步驟14，以將該複合胚料2A成形出一螺牙後，而形成圖中所示之複合螺絲2B之製造方法1。 Referring to Figures 1 and 2, the conventional composite screw manufacturing method 1 includes, in sequence, a material preparation step 11, a welding step 12, a finishing step 13 and a thread forming step 14. Among them, the material preparation step 11 is provided with a mother of different materials Material 2, the base material 2 is formed into a flat peripheral head section 21 and a tail section 22; wherein, one end of the head section 21 is formed with a screw 211, and opposite to the other end of the screw 211 is a Flat welding surface 212. In addition, the tail section 22 has a drill tail 221 and a connecting surface 222 provided at the other end of the drill tail 221; in addition, when the welding step 212 is performed, the screw head 211 is After fixing, and by driving the tail section 22 to the head section 21 to rub against each other, the head section 21 and the tail section 22 are combined to form a composite blank 2A, and then the welding place is placed through the finishing step 13 The excess material formed is removed to make the weld form a flat periphery; finally, a thread forming step 14 is performed to form a thread from the composite blank 2A to form the composite screw shown in the figure 2B manufacturing method 1.

然，實際使用後發現，該複合螺絲製造方法1，於該頭段21與尾段22焊接時，係透過該焊接面212與該連接面222相互摩擦接合而成，除了使焊接過程容易包覆到空氣，造成空氣無法順利排出，而影響焊接後之強度與品質外；另外，由於是採用擠壓摩擦焊接因素，其焊接完成後，在焊接點部分會有多餘之廢料向外擴張，加上又是高溫所形成之碳化層，因此必須進行軟化後才能予以去除廢料作業，否則會造成刀具的嚴重耗損，如此將使加工製造成本提升，同時廢料去除也須多出一道加工程序，也相對增加該複合螺絲製造之複雜性，實須改善。 However, after actual use, it was found that the composite screw manufacturing method 1, when the head section 21 and the tail section 22 are welded, is formed by frictionally joining the welding surface 212 and the connecting surface 222, in addition to making the welding process easier to cover Into the air, the air cannot be discharged smoothly, which affects the strength and quality of the welding. In addition, due to the use of squeeze friction welding, after the welding is completed, there will be excess waste at the welding point expanding outward, plus It is also a carbonized layer formed by high temperature, so it must be softened before the scrap can be removed. Otherwise, it will cause serious tool wear, which will increase the processing and manufacturing costs. At the same time, waste removal requires an additional processing procedure, which is also relatively increased The complexity of manufacturing the composite screw must be improved.

因此，本發明之目的，是在提供一種複合螺絲之焊接方法，其可減少焊接過程之廢料產生，同時確保製造品質及降低加工成本等功效。 Therefore, the object of the present invention is to provide a method for welding composite screws, which can reduce the waste generated during the welding process, while ensuring the manufacturing quality and reducing the processing cost.

於是，本發明複合螺絲之焊接方法，其依序包含有備料步驟、焊接步驟及成型步驟；其中，該備料步驟係分別具備有不同材質之頭段及尾段後，該頭段具有一螺頭，以及一由該螺頭向外延伸之桿身，而前述該桿身端緣形成有一焊接面，另該尾段之一端緣形成一平整之連接面，而前述該焊接面與該連接面為同一外徑尺寸；另，該焊接步驟將該尾段與該頭段對齊於同一軸心線上，並使該焊接面與該連接面相互緊靠，且使該尾段與該頭段產生同方向轉動，同時於轉動過程中利用一焊接主機針對該尾段與該頭段之接合處進行周緣環圈焊接，能使該頭段與該尾段結合成一複合胚料，以避免焊接過程產生空氣包覆現象，確保該焊接處不會造成孔隙之產生，且非採用摩擦擠壓焊接成型，因此於焊接處也不會產生多餘之廢料，故該複合胚料可以直接進行後續成型步驟，不需進行修整，能減少加工程序以降低成本外，同時也能確保製造之品質。 Therefore, the welding method of the composite screw of the present invention sequentially includes a material preparation step, a welding step, and a forming step; wherein the material preparation step is provided with a head section and a tail section of different materials, and the head section has a screw head , And a shaft extending outward from the screw head, and the end of the shaft is formed with a welding surface, and an end of the tail section forms a flat connecting surface, and the welding surface and the connecting surface are The same outer diameter size; in addition, the welding step aligns the tail section and the head section on the same axis line, and makes the welding surface and the connecting surface abut each other, and makes the tail section and the head section produce the same direction Rotating, while using a welding host to target the The joint between the tail section and the head section is welded circumferentially, so that the head section and the tail section can be combined into a composite blank to avoid air cladding during the welding process and ensure that the weld does not cause porosity , And it is not formed by friction extrusion welding, so there will be no excess waste at the welding place, so the composite blank can be directly subjected to the subsequent forming steps without trimming, which can reduce the processing procedures to reduce costs, and also Can ensure the quality of manufacturing.

(習知) (Acquaintance)

1:複合螺絲製造方法 1: Composite screw manufacturing method

11:備料步驟 11: Preparation steps

12:焊接步驟 12: Welding steps

13:整理步驟 13: finishing steps

14:螺牙成型步驟 14: Thread forming steps

2:母材 2: Base material

21:頭段 21: First paragraph

22:尾段 22: tail section

211:螺頭 211: Screw Head

212:焊接面 212: Welding surface

221:鑽尾 221: Drill Tail

222:連接面 222: Connection surface

2A:複合胚料 2A: Compound blank

2B:螺絲 2B: Screw

(本發明) (this invention)

3:焊接方法 3: welding method

31:備料步驟 31: Preparation steps

32:焊接步驟 32: Welding steps

33:成型步驟 33: forming steps

4:母材 4: Base material

41:頭段 41: first paragraph

42:尾段 42: tail section

411:螺頭 411: Screw

412:桿身 412: Shaft

413:焊接面 413: Welding surface

421:連接面 421: connection surface

4A:複合胚料 4A: Compound blank

4B:複合螺絲 4B: Composite screw

5:焊接主機 5: Welding host

6:定位座 6: positioning seat

圖1為習知複合螺絲製造方法之流程圖。 Figure 1 is a flow chart of a conventional method for manufacturing a composite screw.

圖2為習知複合螺絲製造方法之成型過程示意圖。 Figure 2 is a schematic diagram of the forming process of the conventional composite screw manufacturing method.

圖3為本發明第一較佳實施例之流程圖。 Fig. 3 is a flowchart of the first preferred embodiment of the present invention.

圖4為本發明第一較佳實施例之成型過程示意圖。 4 is a schematic diagram of the forming process of the first preferred embodiment of the present invention.

有關本發明之前述及其他技術內容、特點與功效，在以下配合參考圖式之較佳實施例的詳細說明中，將可清楚的明白。 The foregoing and other technical contents, features, and effects of the present invention will be clearly understood in the following detailed description of the preferred embodiment with reference to the drawings.

參閱圖3，本發明第一較佳實施例，複合螺絲之焊接方法依序包含有備料步驟31、焊接步驟32、成型步驟33等；其中，該備料步驟31其分別備具有不同材質之母材4，且該母材4分別成形出一平整周緣之頭段41及一尾段42；其中，該頭段41具有一螺頭411，以及一由該螺頭411向外延伸之桿身412，而前述該桿身412端緣形成有一焊接面413，另該尾段42之一端緣形成一平整之連接面421，而前述該焊接面413與該連接面421為同一外徑尺寸，使該焊接面413與該連接面421相接時，該焊接面413與該連接面421之周緣相互對齊，且該頭段41之材質可為耐侵蝕性較高之不銹鋼材質系列，而該尾段42之材質可選擇硬度較高之麻田散鐵系列或者特別經硬化處理後之其他材質。 Referring to FIG. 3, in the first preferred embodiment of the present invention, the welding method of the composite screw sequentially includes a material preparation step 31, a welding step 32, a forming step 33, etc.; wherein the material preparation step 31 prepares base materials of different materials respectively 4, and the base material 4 is respectively formed into a head section 41 and a tail section 42 with a flat periphery; wherein, the head section 41 has a screw head 411 and a shaft 412 extending outward from the screw head 411, The end edge of the shaft 412 is formed with a welding surface 413, and an end edge of the tail section 42 forms a flat connecting surface 421. The welding surface 413 and the connecting surface 421 have the same outer diameter, so that the welding When the surface 413 is connected to the connecting surface 421, the periphery of the welding surface 413 and the connecting surface 421 are aligned with each other, and the material of the head section 41 can be a stainless steel series with higher corrosion resistance, and the tail section 42 material The quality can be selected from the Asada loose iron series with higher hardness or other materials specially hardened.

仍續前述，該焊接步驟32備具有一焊接主機5，以及一位於該焊接主機5下方之定位座6，而前述該定位座6同時供該尾段42與該頭段41置放，同時該尾段42與該頭段41置放於該定位座6上時，該焊接面413與該連接面421相對應緊靠於同一軸心線上，以使該焊接面413與該連接面421之相接處能平整地接合，而該焊接主機5恰可位於該焊接面413與該連接面421之接合處的上方，同時該尾段42與該頭段41產生同方向轉動，此時該焊接主機5即可針對該尾段42與該頭段41之相接處(即接合處)進行周緣環圈方式焊接，使該頭段41與該尾段42結合成一複合胚料4A，因焊接方式是採用無焊料的直接加熱方式進行，且非採用摩擦擠壓方式進行焊接，因此能有效避免焊接過程產生空氣包覆現象，確保該焊接處不會造成孔隙之產生，且非採用摩擦擠壓焊接成型，故於焊接處也不會產生多餘之廢料，故可不需再進行修整就能直接進入成型步驟33；最後，該成型步驟33再將該複合胚料4A透過一搓牙機予以搓牙成型出一複合材質之螺絲4B，當然，如果該螺絲4B須為鑽尾時，亦可先經過一鑽尾成型機進行成型出一鑽尾，如此將可快速順利地完成該螺絲4B之製造，故能有效減少製造程序及降低成本外，同時也能確保製造之品質。 As mentioned above, the welding step 32 is equipped with a welding host 5 and a positioning seat 6 located below the welding host 5. The aforementioned positioning seat 6 is used for placing the tail section 42 and the head section 41 at the same time. When the tail section 42 and the head section 41 are placed on the positioning seat 6, the welding surface 413 and the connecting surface 421 are correspondingly close to the same axis, so that the welding surface 413 and the connecting surface 421 are relative to each other. The joint can be joined smoothly, and the welding host 5 can be located just above the joint between the welding surface 413 and the connecting surface 421, and the tail section 42 and the head section 41 rotate in the same direction. At this time, the welding host 5 It can be welded in a circumferential ring mode for the joint (ie, the joint) between the tail section 42 and the head section 41, so that the head section 41 and the tail section 42 are combined into a composite blank 4A, because the welding method is It adopts direct heating method without solder and does not use friction extrusion method for welding, so it can effectively avoid the phenomenon of air cladding during the welding process, and ensure that the weld will not cause porosity, and it is not formed by friction extrusion welding. , So there will be no excess waste at the welding place, so it can go directly to the forming step 33 without trimming; finally, in the forming step 33, the composite blank 4A is formed by a thread rolling machine. A screw 4B made of composite material. Of course, if the screw 4B needs to be drilled, it can also be formed by a drill forming machine first, so that the screw 4B can be manufactured quickly and smoothly. In addition to effectively reducing manufacturing procedures and costs, it also ensures the quality of manufacturing.

歸納前述，本發明複合螺絲之焊接方法，其依序包含有備料步驟、焊接步驟及成型步驟；其主要在於該焊接步驟中，欲將不同材質的頭段與尾段進行焊接時，其先將該頭段與尾段對齊接合於同一軸心線上，並使該頭段之焊接面與該尾段之連接面相互緊靠，同時使該頭段與尾段以同方向進行轉動，並於轉動過程中，由一焊接主機針對該頭段與尾段之接合處進行整圈焊接作業，使該頭段與該尾段結合成一複合胚料，如此將能確保製造品質，使得製造過程中不易因摩擦熔接而產生凸出廢料及包覆空氣，有利該複合胚料能直接提供後續之成型步驟，有效減少製造程序以降低生產成本。 To summarize the foregoing, the welding method of the composite screw of the present invention includes a material preparation step, a welding step, and a forming step in sequence; the main reason is that in the welding step, when the head section and the tail section of different materials are to be welded, the The head section and the tail section are aligned and joined on the same axis line, and the welding surface of the head section and the connecting surface of the tail section are close to each other, and the head section and the tail section are rotated in the same direction at the same time. During the process, a welding host performs a full circle welding operation on the joint between the head section and the tail section, so that the head section and the tail section are combined into a composite blank, which will ensure the manufacturing quality and make the manufacturing During the manufacturing process, it is not easy to generate protruding waste and coating air due to friction welding, which is advantageous for the composite blank to directly provide subsequent molding steps, effectively reducing manufacturing procedures and reducing production costs.

惟以上所述者，僅為說明本發明之較佳實施例而已，當不能以此限定本發明實施之範圍，即大凡依本發明申請專利範圍及發明說明書內容所作之簡單的等效變化與修飾，皆應仍屬本發明專利涵蓋之範圍內。 However, the above is only to illustrate the preferred embodiments of the present invention, and should not be used to limit the scope of implementation of the present invention, that is, simple equivalent changes and modifications made in accordance with the scope of the patent application of the present invention and the content of the description of the invention , Should still fall within the scope of the invention patent.

3:焊接方法 3: welding method

31:備料步驟 31: Preparation steps

32:焊接步驟 32: Welding steps

33:成型步驟 33: forming steps

Claims

一種複合螺絲之焊接方法，其依序包含有：一備料步驟，其分別備具有不同材質之母材，且該等母材分別成形出一平整周緣之頭段及一尾段，其中，該頭段具有一螺頭，以及一由該螺頭向外延伸之桿身，而前述該桿身端緣形成有一焊接面，另該尾段之一端緣形成一平整之連接面，同時該焊接面與該連接面為同一外徑尺寸；一焊接步驟，其備具有一焊接主機，以及一位於該焊接主機下方之定位座，而前述該定位座可供該尾段與該頭段置放，同時該尾段與該頭段置放時，該焊接面與該連接面相對應緊靠於同一軸心線上，以便該尾段與該頭段產生同方向轉動，此時於該尾段與頭段呈緊靠並朝同方向轉動時，該焊接主機係定位在該定位座之一側並對準該尾段與該頭段相互緊靠之接合處，以便由該焊接主機針對該尾段與該頭段之接合處進行整圈式的周緣環圈焊接作業，且焊接方式是採用無焊料之直接加熱方式進行，藉此該焊接主機針對該尾段與該頭段接合處之焊接位置處焊接時，該尾段與該頭段接合處不會產生多餘廢料，以使該頭段與該尾段經焊接後結合成一複合胚料；及一成型步驟，將焊接後之複合胚料進行搓牙，以成形出複合螺絲。 A method for welding composite screws, which sequentially includes: a material preparation step, which prepares base materials of different materials, and the base materials respectively form a head section and a tail section with a flat peripheral edge, wherein the head The segment has a screw head and a shaft extending outwards from the screw head. The end edge of the shaft forms a welding surface, and an end edge of the tail segment forms a flat connection surface. At the same time, the welding surface and The connecting surface is of the same outer diameter; a welding step is equipped with a welding host and a positioning seat under the welding host. The aforementioned positioning seat can be used to place the tail section and the head section. When the tail section and the head section are placed, the welding surface and the connecting surface are close to the same axis line, so that the tail section and the head section rotate in the same direction. At this time, the tail section and the head section are tight. When leaning and rotating in the same direction, the welding host is positioned on one side of the positioning seat and aligned with the joint where the tail section and the head section are close to each other, so that the welding host can target the tail section and the head section The joint is welded with a full-circle peripheral ring, and the welding method is a direct heating method without solder, so that when the welding host welds the welding position at the joint between the tail section and the head section, the No excess waste is generated at the joint between the tail section and the head section, so that the head section and the tail section are welded together to form a composite blank; and a forming step is to roll the welded composite blank to form Take out the compound screw.