TWI252142B - Welding mechanism and welding mold - Google Patents

Abstract

A welding mechanism is adapted for welding a tube material with a thickness. The welding mechanism includes a tube material holding device and a welding mold. The tube material holding device is adapted for holding and removing the tube material. The welding mold includes an outer mold and an inner mold, wherein the inner mold is disposed in the outer mold, the tube material passes through the gap between the inner mold and the outer mold, and the gap between the inner mold and the outer mold is less than about 3 times the thickness of the tube material.

Description

1252142 IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a welding mechanism broadcast, 14 people 1 (7) are in contact with a welding /, inner mold and an outer mold to restrain the pipe to be welded. [Prior Art] In the production and production of seamed metal pipe fittings, the production and efficiency of the main production and the finite-length pipe fittings are higher, but (4) the molding is ancient. The total amount of poverty, ambition, morale, and physical skills of the 兮 相对 is relatively large. The continuous-form forming welding of the edge parts is one type, although the products of the seamless steel pipe are mainly produced by different manufacturers. The pipe is continuously formed and welded;; the second steel: the steel plate steel coil (c〇il) of the singer ^ is more than a m... is a specific width (W) roll...i, which is wrong by the rolling roller (, gradually Rolled into ":' and then welded to form a steel pipe wr.) Yes, · mm end: For the upper steel plate, due to the rigidity of the steel plate material, it is good and can be supplied by the extrusion force of the forming process. Traveling place =. However, for the plate parts below .3_, the steel plate material:: small 'mesh is not easy to form, which makes the forming of the continuous pipe and the welding position difficult. Especially in the In the case where the thickness ratio of the steel sheet material is >250, = (diameter & D) / (wall thickness t) > 25Q, the thin tube is made of a continuous tube, but the material of the steel sheet is fine. Forming edge deformation or setback will cause failures in subsequent welding operations. ... In addition / # P艮 length pipe fittings are usually seam welders (Seamer) = 仃, commonly used in special pipe diameter or small demand, The principle of the process is different from the continuous forming of the official part. For example, refer to the 1 ®

The seam welder pipe clamp device 2 of 01025-TW 1252142 is clamped and fixed by a support shaft i U, 24, and is clamped and fixed to the right. On the support shaft - the furnace is engraved with a center line 12 as the pipe 3 ^. The operation is to apply the soap to the pipe to be welded. The seam welder is placed on the support shaft 10, and after the first butt edge 32 of the spleen spleen 3 is inserted, the official member is aligned with the center line 12, and the clamp method is pressed downward and the support shaft 10 is pressed. Rolling the mouth to press the 件 m m of the official member 30 from the white 32 and position it on the butt edge 34 to be welded to the pressed pipe _ 1 and then the second butt edge of the 件 3〇] The 30th pair of the pair of sides 32 the pressure block 24, like the pneumatic ancient #野, and then, "" down the pressure and the first side 34 of the tube 30 is also pressed and fixed on the support shaft A pair of connection procedures, the pipe 3G f 4 machine is welded to the round pipe. ^ The two butt joints K, 34 are welded to produce _ the finite length pipe welding method" is further formed by rounding, and then positioned by the seam welder Degree: For thick plates, the butt joint adhesion is good, so the welding is not 4: However, for thinner plates, the rain pan pulls * 曰 问 4. Control, and the reproducibility of the positioning due to the readability and quality of the pipe is not easy to cut the original sheet of the pipe. Furthermore, ☆ 卞 、, edge quality is a multi-meaning, or volume, of whether the round forming effect overlaps. Therefore, the preparation of the board to the armor and the like of the docking of the fresh joint defects or failure. Moreover, since the general = ' will cause a large welding, the success rate of the product is not enough, :: The artificial assembly factor affects the mass production demand and the equipment cost is very high. The rate of house delivery is mf. Therefore, it is necessary to provide 1 welding machine. The lack of narration

01025-TW 6 1252142 SUMMARY OF THE INVENTION The purpose of this month is to provide a welding mechanism in which the inner mold and the outer mold are restrained from the welded pipe fittings, and then, the inner shackles are used. d J" Phase stability U is a reliable joint effect - Another goal of Zhuang Ben in January is to provide a welding mechanism that includes a backing device to provide inert gas as a shielding gas for welding. A further object of the present invention is to provide a welding portion pressurizing device for automatically elasticizing the 苒/, 匕3 internal state. A further object of the present invention is to provide a welding mechanism comprising an external force device for adjusting the upper and lower positions of the part to be welded. In order to achieve the above object, the present invention provides a pipe fitting, the pipe member has a wall thickness, and (4) a private structure, which is used for the fresh joint and the fourth joint, and the dry joint mechanism comprises a pipe member for clamping and replacing. With. The f-clamping device is for clamping the pipe member and sub-moving the pipe member. The welding mold comprises a _ 6 outer chess piece and an inner mold, and wherein the inner mold is disposed in the outer mold..., /, the outer mold and the step θ ^ the official piece passes through the inner mold: The difference between the inner mold and the outer mold is less than about

Double the thickness of the official piece. J 曰 The present invention is applied to a high-diameter-thickness ratio (diameter)/(f wall-thickness thin tube splicing mechanism, which is based on the thin joints, the stencil characteristics, and utilizes the inner mold 1 and the outer cookware Constraining the design of the pipe to be welded, ^, in violation of the stable and sturdy joint effect, the forming requirements of the pipe can be greatly reduced, and the influence of the welding result can be avoided. - In order to make the above and other aspects of the present invention Purpose, characteristics, and advantages can be more clear

01025-TW 7 1252142 The following will be accompanied by the attached (4), as detailed below. [Embodiment] FIG. 2 is a drawing showing one of the present inventions ♦ 100, which is used for the welding mechanism of the #1#1(2H) example, and the connection mechanism 100 includes a working port. 110, a pedestal 112, a supporting tailstock 114, a 乍-welding die 150, an internal affixing 118 cattle holding clothes 116, w 19 Λ & clothing 118, - external pressure adjusting device 120, a support The shaft 122 and the cymbal 112 are fixed to the 4 working σ 110. The supporting tailstock u, .^ ^ Μ is arranged on the table 110, ... an adjusting unit 126 for adjusting The support tailstock 114 is indicated by the arrow 128. The pipe clamp skirt 116 is for holding the welded pipe fitting 1G2 and can be fixed to the power single s 13G for moving the remote member holding device 116' As shown by the arrow 132, the tube to be welded is driven, as indicated by the arrow 134. The power unit 130 can clamp the tube to be welded #102 by synchronous air pressure clamping and drive the tube by the lead screw. The welding die 150 includes an outer die 152 and an inner die 154, wherein the outer die 152 is disposed on the base 112, and (4) the die 154 is coupled The inner pressing device 118, such as a combination of a yellowing 104 and a supporting block 106, is disposed in the inner mold Μ*, and the supporting block 106 is in contact with the waiting The inner wall of the welded pipe member 2, the spring HM can pressurize the inner wall of the pipe member 1G2 to automatically close the inner mold 154 and the pipe member to be welded 1 to 2. The external pressure adjusting device The 120 series can be disposed on the outer mold ι52, and can press the outer wall of the pipe member to be welded 102 to adjust the upper and lower positions of the pipe member to be welded 1〇2, as shown by the front head 121. The support shaft 22 is fixed. The support tailstock 114 is used to support the 3 inner mold 1 5 4. The welding torch 1 2 4 is attached to a welding

01025-TW 8 1252142 The position is to weld the two butt edges of the pipe member to be welded 102. In the third section of the tea test, the tube to be welded i 02 passes through the gap between the inner mold 丨 54 and the outer mold 152, and the gap between the inner mold 154 and the outer mold •] is approximately twice as large as the weld to be welded. The wall thickness (dt) of the pipe fitting 1 〇2. The outer mold dynamically closes the two butt edges 156 of the pipe member to be welded 1 and controls the outer diameter of the <1> The outer mold 152 may include a slit 158, and two corresponding to the two butt edges 156 of the tube member to be welded 1 2 and define the outer mold 1 5 2 and the inner mold 1 5 4 to be welded. The requirements for different pipe diameters or wall thicknesses of the pipe fittings 1〇2 are instantaneously exchanged. Referring again to FIG. 2, the welding mechanism 100 further includes an inert gas inlet switch 138 connected to the = milk supply source (not shown) for inputting inert gas to a communication line and two H communication tubes. It is disposed in the support shaft 122 and is connected to the moon suit 142 and is used to guide the inert gas to the back blowing device 142. == 142 is located within the inner mold 154 to provide a shielding gas for the inert gas. The inner mold 154 also has a tubular inner wall backing and heat dissipation. Since the target pipe member has a fixed outer diameter dimension plus a force acting, that is, a deforming capability, the present invention can also design a set of inner = m and outer die 152 ' such as the inner die: shape: = with - cone shape is called Fig. 4 Show), or the outer die mouth; the main two is %, the sub-interior contains an inner space 151, 筮5 you-, ,, has a cone shape 153 (such as == and the tube to be welded 102 is bound to the _ 15... Between the 杈 杈, 152, the inner mold 154 and ^ are less than about three times the gap difference of the 杈 杈 杈 152, the wall thickness of the fresh official member 102 is good, the piece 102 passes, and the gap is ^ ^ Allowing the to-be-welded pipe to not produce the overlap of the butt joints. Again, in

01025-TW 9 1252142 • During the movement of the part, the two pairs of edges 156 are gradually butted together by the inner die and the outer die. The cone welding is performed to achieve the purpose of manufacturing the pipe fittings. Hey. Preferably, the present invention is applied to a high-diameter-thickness ratio (such as the thickness of a thin pipe member having a diameter-to-thickness ratio of more than about 250), and the use of the inner mold and the outer portion is utilized. = about = according to the design of the thin tube, to achieve a stable and reliable access to the sentence to be welded pipe fittings. The invention can be applied to a thickness of about 3.3 or less can be: first or continuous production Make a thin manufacturing = cow. f First, the welding mechanism of the present invention is applied to a _ batch, that is, a finite length pipe welding method, and the steps are as follows: Step: Prepare a flat plate L required for a predetermined length circular xL deployment. In step 2, the flat plate is formed into a round shape by a roll mechanism. Step: / Place the formed open circular tube into the inner mold and the outer mold, and lug the position and hold the round tube. In step 4, the protective gas and the force adjustment device are turned on. Step 5' starts the welding mechanism' and starts the welding action. Step 6. Repeat steps 1-4' for this mode to accommodate small production needs. Further, the welding mechanism of the present invention is applied to the continuous production mode, that is, the sheet material is continuously formed into a tubular shape, and continuous continuous length production is carried out. In the step 丨, the raw material is in the form of a coil, which is formed into a round tubular shape after being formed by a plurality of rolls. Step 2 'Introducing the tube between the inner mold and the outer mold, and replacing the support tailstock with an inverted support base 148, as shown in Fig. 6. Step 3. Turn on the shielding gas and pressure regulating device. In step 4, the welding step is initiated to enable uninterrupted production. This continuous production method is suitable for large and different lengths

Pipe fitting requirements for 01025-TW 10 1252142. The material mechanism of the present invention has the following advantages: The welding of the present invention is applied to a continuous production mode or a batch production mode. 2• Compared with the white welding mechanism, when the welding mechanism of the present invention welds the circular pipe fitting, the forming quality of the circular pipe fitting (such as the burr phenomenon, the deformation of the pipe edge, the lack of roundness, etc.) requires a lower standard. For the pre-operation, the tolerance of the size of the segment is required to be large, so that the required cost of the present invention can be greatly reduced. 3. The welding mechanism of the present invention has a small volume and requires less f space, and has a simple design and a principle of module separation. Therefore, the processing cost of the fresh joint mechanism and assembly of the present invention is low. 4• From the design side, the influence of artificial factors on the results is greatly reduced. Therefore, the quality of the weld bead is stable, the joint strength is excellent, and the reliability is high. 5. The relevant components can be combined: when different pipe diameters need to be changed, the components, such as the inner mold and the outer tool, can be easily exchanged. In addition, the welding mechanism of the present invention has a cost of less than 1% of the price of the batch type seam welding equipment under the condition of the same force month b. Although the present invention has been disclosed in the foregoing embodiments, it is not intended to limit the scope of the present invention, and various modifications and changes can be made without departing from the spirit and scope of the invention. . Therefore, the scope of the invention is defined by the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional view showing a prior art seam welding machine pipe holding device. Fig. 2 is a schematic cross-sectional view showing a welding mechanism according to an embodiment of the present invention.

01025-TW

11 1252142 Cross section of the wheel along the line 3-3 of Fig. 2 Fig. 3 is a schematic view of the welding of the invention. Fig. 4 is a schematic cross-sectional view showing a welding mold according to an embodiment of the present invention. Fig. 5 is a schematic cross-sectional view showing a welding mold according to another embodiment of the present invention. Figure 6 is a schematic cross-sectional view showing a welding mechanism of another embodiment of the present invention. [Main component symbol description] 2 Pipe clamp device 10 Select vehicle 12 Center wire 22 Press block 24 Press block 30 Pipe fitting 32 First butt joint 34 Younger joint 100 Welding mechanism 102 Pipe fitting 104 Magazine 106 Support block 110 Workbench 112 Base 114 Support tailstock 116 Pipe clamps 118 Internal pressurization device 120 External pressure adjustment device 122 Support shaft 124 Welding 126 Adjustment unit 128 Arrow 130 Power unit 132 Arrow 134 Arrow 138 Inlet switch 01025-TW 12 1252142 140 Connected Pipeline 142 Backflushing device 148 Upside down support 150 Welding die 151 Internal space 152 Outer die 153 Tapered shape 154 Inner die 155 Tapered shape 156 Butt joint 158 Slit 01025-TW 13

Claims (1)

1252142 X. Patent application scope · The pipe member has a wall and moves the pipe member; a welding mechanism for welding a pipe member thickness, the welding mechanism comprises: an official member clamping device for clamping the pipe member and the mesh And r job 1 for Dan, with the inner mold ', is disposed in the outer mold, the pipe passes through the inner mold and the outer mold die gap, and the inner mold and the outer mold, the wall thickness of the pipe . Double 2 includes - an internal processing plant is placed in the inner mold to pressurize one of the inner walls of the tubular member. The welding machine in accordance with item 2 of the Shenshen patent scope is a welding mechanism of the inner pressing device 4 in the first and second support parts of the magazine and the supporting block, and the external pressure is applied to the garment. Press one of the outer walls of the tube. 5' The welding mechanism according to the scope of application patent 帛i, wherein the butt joint, and the outer mold comprises - eight mating edges, and is used to define a fresh joint seam. Corresponding to the two parts of the pipe fittings, according to the third aspect of the patent application scope, a pipe joint is included, wherein the pipe fittings are used to drive the pipe to be welded forward. 7. The welding mechanism according to item 1 of the patent application scope, further comprising: a work table; disposed on the base and fixed to the m, wherein the outer mold is on the base 01025-TW 14 1252142; and includes an adjustment sheet: And supporting the tailstock, disposed on the workbench, for adjusting the horizontal position of the support tailstock and for supporting the inner mold and the support shaft, and being fixed on the support tailstock. The welding mechanism according to item 1 of the patent scope of the invention, the monthly blowing device, is located in the inner mold, and further comprises a connecting line for connecting to the back blowing device; and an inlet switch, Connected to the connecting line. The welding mechanism according to item 8 of the patent application, wherein the inert gas. , ^ protects the gas system as 1. The welding mechanism according to item 1 of the patent application scope, which is cylindrical. 11. The welding machine m according to item 10 of the patent application scope comprises a cone shape. The f-joining mechanism, wherein the inner mold 12 is a welding mechanism of the first aspect of the patent, wherein the outer mold system 13, the welding mechanism of the 12th patent scope includes an internal space, which has a cone shape. 14. Welding according to the scope of patent application 帛1 is applied to the batch production method. The inner mold system, wherein the welding mechanism 01025-TW 15 1252142 is applied to a continuous production side = welding mechanism, wherein the welding mechanism patent range 1 is a welding mechanism, wherein the welding mechanism The wall of the pipe is less than about 〇3 mm. (3) 17, = Please use the welding mechanism of the third item (diameter) / (wall thickness) is more than about 25 yak to live 18 kinds of welding dies, 1 use a to restrain a pipe fitting, the pipe has The welding mold comprises: an outer mold; and the inner mold is disposed in the outer mold, wherein the tube passes through the gap between the inner and outer molds, and the inner mold and the outer mold The difference is less than about three times the wall thickness of the pipe. 19. The welding mold of claim 18, wherein the inner mold is cylindrical. 20. The welding mold according to claim 19, wherein the inner mold comprises a tapered shape. VIII. The welding mold according to item 18 of the patent application scope, wherein the outer mold is a ring shape. ..., 22. The welding mold according to claim 21 of the patent application, wherein the outer mold comprises an inner space having a tapered shape. 01025-TW 16