CN102091861A - Metal stud welding system combined with friction heat source - Google Patents
Metal stud welding system combined with friction heat sourceDownload PDFInfo
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Abstract
Translated fromChinese
Description
Translated fromChinese技术领域technical field
本发明涉及一种金属螺柱焊接系统，特别是一种复合摩擦热源的金属螺柱焊接系统。The invention relates to a metal stud welding system, in particular to a metal stud welding system with a composite frictional heat source.
背景技术Background technique
金属螺柱焊接是实现将金属螺柱或其它类似螺柱的杆件焊接到另一工件的过程。通常实现金属螺柱焊接过程的主要有电弧螺柱焊接系统、电阻焊接系统、摩擦焊接系统等，电弧螺柱焊接系统具有全截面焊接、高效高质的特点，在汽车车辆制造、机械制造、造船工程、桥梁建筑工程、电力电站、交通运输、石化能源工程和装饰装修业等工业部门得到广泛应用。但是，普通电弧螺柱焊、电容储能电弧螺柱焊要求螺柱顶部带有电弧放电尖端，该尖端和金属基体之间由焊接电源供电产生瞬间电弧，熔化尖端并在压力作用下形成焊接接头，不适用于空心金属螺柱焊接。并且由于电弧热源能量的限制，电弧螺柱焊接不能焊接如直径10mm以上铝制螺柱、直径25mm以上钢制螺柱等中大直径的螺柱。Metal stud welding is the process by which a metal stud or other stud-like rod is welded to another workpiece. Generally, the metal stud welding process mainly includes arc stud welding system, resistance welding system and friction welding system. It is widely used in industrial sectors such as engineering, bridge construction engineering, electric power station, transportation, petrochemical energy engineering and decoration industry. However, ordinary arc stud welding and capacitor energy storage arc stud welding require an arc discharge tip on the top of the stud, which is powered by a welding power supply to generate an instantaneous arc between the tip and the metal base, melting the tip and forming a welded joint under pressure , not suitable for hollow metal stud welding. And due to the limitation of arc heat source energy, arc stud welding cannot weld studs with medium and large diameters such as aluminum studs with a diameter of more than 10mm and steel studs with a diameter of more than 25mm.
对于某些不适宜用螺柱焊接系统来完成焊接的金属螺柱，通常可用手工电弧焊、钨极氩弧焊、半自动熔化极气体保护焊等与另一工件进行焊接。手工电弧焊是采用手工运送电焊条、手工绕螺柱旋转一周对螺柱外圆实施焊接的工艺；钨极氩弧焊与手工电弧焊方法类似，也采用氩气保护的钨极电弧作为热源，手工运送焊丝、手工绕螺柱旋转一周对螺柱外圆实施焊接的工艺；半自动熔化极气体保护焊采用CO2、Ar或Ar+CO2混合气保护，由焊枪自动送进焊丝、手工移动焊枪一周对螺柱外圆实施焊接的工艺。手工电弧焊、钨极氩弧焊和半自动熔化极气体保护焊虽然具有焊接操作简单，广泛适用于焊接中大直径螺柱和空心金属螺柱等各种类型金属螺柱的优点，但都存在螺柱焊接结合面积少、强度相对较低、焊接内部存在缺陷、焊缝外观成形不好、效率低等缺点。For some metal studs that are not suitable for welding with a stud welding system, manual arc welding, argon tungsten arc welding, semi-automatic gas metal arc welding, etc. are usually used for welding with another workpiece. Manual arc welding is a process of manually transporting the electrode and manually rotating a circle around the stud to weld the outer circle of the stud; tungsten argon arc welding is similar to manual arc welding, and also uses argon-protected tungsten arc as the heat source. The process of manually transporting the welding wire and manually rotating a circle around the stud to weld the outer circle of the stud; semi-automatic MIGA welding adopts CO2 , Ar or Ar+CO2 mixed gas protection, the welding wire is automatically fed by the welding torch, and the welding torch is moved manually The process of welding the outer circle of the stud in one week. Although manual arc welding, argon tungsten arc welding and semi-automatic MIGA welding have the advantages of simple welding operation and are widely applicable to various types of metal studs such as large-diameter studs and hollow metal studs in welding, they all have the advantages of Column welding has the disadvantages of small bonding area, relatively low strength, internal defects in welding, poor weld appearance and low efficiency.
如在车辆车体内部和外部、船体船舱中、压力容器内壁和外壁以及其它领域中，广泛用钢制螺柱、铝制螺柱、不锈钢螺柱与金属基体焊接，目前对于空心金属螺柱或螺母的焊接通常应用手工电弧焊、钨极氩弧焊、半自动熔化极气体保护焊等，国外还针对小直径不锈钢螺母开发了旋转电弧螺柱焊，对于空心钢制螺柱、中大直径铝制螺柱和中大直径不锈钢空心金属螺柱的焊接目前尚无技术解决方案。又如特种车辆每台车有400-500个尺寸较大的圆形铝制螺柱或方形金属螺柱等螺柱型杆件，但电弧螺柱焊接系统只能焊接直径小于10mm而不能满足大直径的铝制螺柱或螺柱型杆件的焊接要求，大部分都采用常规熔化焊接方式，如钨极氩弧焊、熔化极氩弧焊等。因此，存在因焊缝的内外在质量差、定位精度不够、焊接截面较小所带来强度较低、焊接效率也较低的问题。再如为连接火箭壳体上的螺柱，英国焊接研究所开发了摩擦螺柱焊接系统，解决了螺柱与火箭壳体的连接技术。摩擦螺柱焊已用于生产包含钢皮和混凝土核心的夹板式构件，也用于生产剪切连接器和终端平板加固条的大容量构件。摩擦螺柱焊接系统的另一项应用是近海设施的水下阳极附属物使用钢螺柱和电力连接铁路线。但是，这些摩擦螺柱焊接系统只能解决小直径螺柱，中大直径螺柱都不能直接焊接。For example, steel studs, aluminum studs, stainless steel studs and metal substrates are widely used to weld the interior and exterior of vehicle bodies, hull cabins, inner and outer walls of pressure vessels, and metal substrates. At present, hollow metal studs or Nuts are usually welded by manual arc welding, argon tungsten arc welding, semi-automatic gas shielded arc welding, etc. Rotary arc stud welding has also been developed for small-diameter stainless steel nuts abroad. For hollow steel studs, medium and large diameter aluminum studs, etc. There is currently no technical solution for the welding of studs and stainless steel hollow metal studs with medium and large diameters. Another example is that each special vehicle has 400-500 stud-type rods such as larger round aluminum studs or square metal studs, but the arc stud welding system can only weld diameters less than 10mm and cannot meet the requirements of large studs. Most of the welding requirements for aluminum studs or stud-type rods with large diameters are conventional fusion welding methods, such as argon tungsten arc welding and argon metal arc welding. Therefore, there are problems of poor internal and external quality of the weld seam, insufficient positioning accuracy, low strength and low welding efficiency due to small welding cross section. Another example is to connect the studs on the rocket shell, the British Welding Institute has developed a friction stud welding system, which solves the connection technology between the studs and the rocket shell. Friction stud welding has been used to produce splint-type members comprising steel skins and concrete cores, as well as high-volume members with shear connectors and terminal plate stiffeners. Another application of friction stud welding systems is the underwater anode appendages of offshore installations using steel studs and electrical connections to railway lines. However, these friction stud welding systems can only solve small diameter studs, and medium and large diameter studs cannot be directly welded.
如何解决现有技术存在的不足，已成为当今金属螺柱焊接装备领域中亟待解决的一项重大难题。How to solve the deficiencies in the existing technology has become a major problem to be solved urgently in the field of metal stud welding equipment.
发明内容Contents of the invention
本发明的目的在于克服现有技术存在的不足而提供一种复合摩擦热源的金属螺柱焊接系统，以提高金属螺柱特别是中大直径金属螺柱焊接的有效面积，增强界面结合强度和变形抗力，提高金属螺柱焊接效率等。The purpose of the present invention is to overcome the deficiencies in the prior art and provide a metal stud welding system with a composite frictional heat source to increase the effective area of metal studs, especially the welding of metal studs with medium and large diameters, and enhance the bonding strength and deformation of the interface resistance, improve the welding efficiency of metal studs, etc.
根据本发明提出的一种复合摩擦热源的金属螺柱焊接系统，包括金属螺柱、金属基体、螺柱夹头，螺柱轴向位移装置，螺柱旋转装置，螺柱制动器，其特征在于设有螺柱外环、螺柱外环夹头，螺柱外环轴向位移装置，螺柱外环旋转装置，金属螺柱设置在螺柱外环轴心位置，螺柱夹头下端固联金属螺柱，螺柱外环夹头下端固联螺柱外环，金属基体设置于螺柱和螺柱外环底端面，螺柱轴向位移装置和螺柱旋转装置分别与螺柱夹头联结，螺柱外环轴向位移装置和螺柱外环旋转装置分别与螺柱外环夹头联结，螺柱制动器与螺柱夹头联结。本发明的金属螺柱是圆形实心金属螺柱、圆形空心金属螺柱或方形金属螺柱等形状的金属螺柱。A metal stud welding system with a composite frictional heat source according to the present invention includes a metal stud, a metal base, a stud chuck, a stud axial displacement device, a stud rotation device, and a stud brake, and is characterized in that There are stud outer ring, stud outer ring chuck, stud outer ring axial displacement device, stud outer ring rotation device, the metal stud is set at the axial center of the stud outer ring, and the lower end of the stud chuck is fixedly connected to the metal The stud, the lower end of the stud outer ring chuck is fixedly connected to the stud outer ring, the metal substrate is arranged on the bottom surface of the stud and the stud outer ring, the stud axial displacement device and the stud rotation device are respectively connected with the stud chuck, The stud outer ring axial displacement device and the stud outer ring rotation device are respectively connected with the stud outer ring chuck, and the stud brake is connected with the stud chuck. The metal studs of the present invention are metal studs in shapes such as circular solid metal studs, circular hollow metal studs or square metal studs.
本发明的工作原理是：为解决金属螺柱特别是中大直径金属螺柱与金属基体直接摩擦产热不足的问题，本发明利用螺柱外环轴向位移和旋转装置直接驱动螺柱外环完成上下位移和旋转运动，可以控制螺柱外环与金属基体紧密接触并旋转摩擦产热达到其塑性温度区间，实现了螺柱外环与金属基体的大面积辅助摩擦预热来增加焊接总的热输入的目的；利用螺柱轴向位移和旋转装置直接驱动金属螺柱完成上下位移和旋转运动，用以控制金属螺柱与金属基体紧密接触并旋转摩擦产热，二种摩擦产热使得金属螺柱和金属基体的温度达到接触面材料的固相焊接温度区间；之后，驱动螺柱外环夹头提升螺柱外环到预定高度，再停止金属螺柱的旋转运动，驱动螺柱夹头对金属螺柱实施顶锻完成金属螺柱摩擦焊接。The working principle of the present invention is: in order to solve the problem of insufficient heat generation by direct friction between metal studs, especially medium and large diameter metal studs, and the metal substrate, the present invention uses the axial displacement and rotation device of the outer ring of the stud to directly drive the outer ring of the stud Complete the up and down displacement and rotation movement, can control the close contact between the outer ring of the stud and the metal substrate and the heat generated by the rotating friction reaches its plastic temperature range, and realize the large-area auxiliary friction preheating between the outer ring of the stud and the metal substrate to increase the total welding time The purpose of heat input is to use the axial displacement and rotation device of the stud to directly drive the metal stud to complete the up and down displacement and rotational movement, so as to control the close contact between the metal stud and the metal substrate and to generate heat by rotating friction. The two kinds of friction heat make the metal The temperature of the stud and the metal substrate reaches the solid-phase welding temperature range of the contact surface material; after that, the stud outer ring chuck is driven to lift the stud outer ring to a predetermined height, and then the rotation of the metal stud is stopped, and the stud chuck is driven Upsetting the metal stud to complete the friction welding of the metal stud.
本发明与现有技术相比其显著优点为：第一，采用复合摩擦热源的金属螺柱焊接系统进行金属螺柱焊接，保留了固相焊接接头的优点，避免了接头熔化焊接产生的气孔、裂纹等缺陷，同时又解决了单一摩擦螺柱焊接系统只能焊接小螺柱问题；第二，采用复合摩擦热源的金属螺柱焊接系统进行螺柱固相焊接，解决了高强、高硬材料螺柱焊接易于出现裂纹缺陷的难题；第三，通过螺柱外环与金属基体摩擦提供辅助预热热源，避免了中大直径螺柱焊接热量输入不足，高强高硬钢材、高强铝制材料焊接缺陷多、焊缝质量较差等问题，也避免了摩擦螺柱焊发热量不足和顶锻力较大的困难；第四，既解决了圆形实心金属螺柱、圆形空心金属螺柱或方形金属螺柱等形状的金属螺柱焊接难题，又实现了多种形状金属螺柱与金属基体的有效固相焊接。本发明特别适用于中大直径金属螺柱的焊接。Compared with the prior art, the present invention has the following significant advantages: First, metal stud welding is performed using a metal stud welding system with a composite frictional heat source, which retains the advantages of solid-phase welded joints and avoids air holes, At the same time, it solves the problem that a single friction stud welding system can only weld small studs; secondly, the metal stud welding system with a compound friction heat source is used for solid-phase welding of studs, which solves the problem of high-strength and high-hardness material stud welding. Stud welding is prone to the problem of crack defects; third, the auxiliary preheating heat source is provided through the friction between the outer ring of the stud and the metal substrate, which avoids insufficient heat input for welding of medium and large diameter studs, and welding defects of high-strength and high-hardness steel and high-strength aluminum materials Many, poor weld quality and other problems, but also to avoid the friction stud welding heat insufficient and large upsetting force difficulties; Fourth, not only solve the round solid metal studs, round hollow metal studs or square It solves the welding problems of metal studs with shapes such as metal studs, and realizes the effective solid phase welding of metal studs with various shapes and metal substrates. The invention is especially suitable for welding metal studs with medium and large diameters.
附图说明Description of drawings
图1本发明提出的一种复合摩擦热源的金属螺柱焊接系统的结构示意图。Fig. 1 is a structural schematic diagram of a metal stud welding system with a composite frictional heat source proposed by the present invention.
图2本发明提出的一种复合摩擦热源的金属螺柱焊接系统的实施方式示意图。Fig. 2 is a schematic diagram of an embodiment of a metal stud welding system with a composite frictional heat source proposed by the present invention.
图3本发明提出的用于圆形空心金属螺柱的复合摩擦热源的金属螺柱焊接系统的结构示意图。Fig. 3 is a structural schematic diagram of the metal stud welding system for the composite frictional heat source of the circular hollow metal stud proposed by the present invention.
图4本发明提出的用于方形金属螺柱的复合摩擦热源的金属螺柱焊接系统的结构示意图。Fig. 4 is a structural schematic diagram of the metal stud welding system proposed by the present invention for the compound frictional heat source of square metal studs.
图5本发明提出的用于方形金属螺柱的复合摩擦热源的金属螺柱焊接系统结构的A-A剖面示意图。Fig. 5 is an A-A cross-sectional schematic diagram of the structure of the metal stud welding system proposed by the present invention for the compound frictional heat source of the square metal stud.
具体实施方式Detailed ways
以下结合附图和实施例对本发明作进一步的详细描述。The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.
实施例1。结合图1和图2，本发明提出的一种复合摩擦热源的金属螺柱焊接系统，主要由金属螺柱[1]、螺柱外环[2]、金属基体[3]、螺柱夹头[4]、螺柱外环夹头[5]、螺柱轴向位移装置[6]、螺柱旋转装置[7]、螺柱外环轴向位移装置[8]、螺柱外环旋转装置[9]和螺柱制动器[10]组成。其中，金属螺柱[1]为圆形实心金属螺柱、圆形空心金属螺柱或方形金属螺柱等形状的金属螺柱；螺柱外环[2]、螺柱夹头[4]和螺柱外环夹头[5]与金属螺柱[1]和金属基体[3]的类型相匹配；螺柱轴向位移装置[6]、螺柱旋转装置[7]、螺柱外环轴向位移装置[8]、螺柱外环旋转装置[9]和螺柱制动器[10]的配置要求和工作方式与现有摩擦焊接系统基本相同。Example 1. Combining Figure 1 and Figure 2, a metal stud welding system with a composite frictional heat source proposed by the present invention mainly consists of a metal stud [1], a stud outer ring [2], a metal matrix [3], and a stud chuck [4], stud outer ring chuck [5], stud axial displacement device [6], stud rotation device [7], stud outer ring axial displacement device [8], stud outer ring rotation device [9] and stud brake [10]. Wherein, metal stud [1] is the metal stud of shapes such as circular solid metal stud, circular hollow metal stud or square metal stud; Stud outer ring [2], stud chuck [4] and Stud outer ring collet [5] matches the type of metal stud [1] and metal base [3]; stud axial displacement device [6], stud rotation device [7], stud outer ring shaft The configuration requirements and working methods of the displacement device [8], the stud outer ring rotation device [9] and the stud brake [10] are basically the same as those of the existing friction welding system.
本发明的具体实施方式是：第一，螺柱外环固联：将螺柱外环[2]固联于螺柱外环夹头[5]下端，使螺柱外环夹头[5]可靠夹持螺柱外环[2]；第二，金属螺柱固联：将金属螺柱[1]固联于螺柱夹头[4]下端，使螺柱夹头[4]可靠夹持金属螺柱[1]；第三，金属基体预热：由螺柱外环轴向位移装置[8]驱动螺柱外环夹头[5]和螺柱外环[2]下降，使螺柱外环[2]与金属基体[3]紧密接触，同时螺柱外环旋转装置[9]驱动螺柱外环夹头[5]和螺柱外环[2]产生旋转，使螺柱外环[2]与金属基体[3]摩擦产热，金属基体[3]摩擦部位温度达到其材料的塑性温度区间；第四，螺柱摩擦升温：在金属基体[3]摩擦预热工作状态基础上，由螺柱轴向位移装置[6]驱动螺柱夹头[4]和金属螺柱[1]下降，使金属螺柱[1]与金属基体[3]紧密接触，同时螺柱旋转装置[7]驱动螺柱夹头[4]和金属螺柱[1]产生旋转，使金属螺柱[1]与金属基体[3]摩擦产热，二种摩擦产热使得金属螺柱[1]和金属基体[3]的温度达到接触面材料的固相焊接温度区间；第五，螺柱外环撤离：由螺柱外环轴向位移装置[8]驱动提升螺柱外环夹头[5]和螺柱外环[2]，提升螺柱外环[2]的高度为5～12mm，其后停止其旋转运动；第六，螺柱顶锻焊接：由螺柱制动器[10]作用于螺柱夹头[4]和金属螺柱[1]停止旋转，其后由螺柱轴向位移装置[6]驱动螺柱夹头[4]对金属螺柱[1]朝金属基体[3]方向实施顶锻，螺柱夹头[4]松开对金属螺柱[1]的夹持，由螺柱轴向位移装置[6]提升螺柱夹头[4]，使其离开已焊接的金属螺柱[1]。本发明以循环往复的方式，完成每一个金属螺柱的复合摩擦焊接。The specific embodiment of the present invention is: first, the stud outer ring is fixedly connected: the stud outer ring [2] is fixedly connected to the lower end of the stud outer ring chuck [5], so that the stud outer ring chuck [5] Reliably clamp the stud outer ring [2]; second, the metal stud is fixedly connected: the metal stud [1] is fixedly connected to the lower end of the stud chuck [4], so that the stud chuck [4] can be reliably clamped Metal stud [1]; third, metal substrate preheating: the stud outer ring chuck [5] and stud outer ring [2] are driven down by the stud outer ring axial displacement device [8], so that the stud outer ring The outer ring [2] is in close contact with the metal substrate [3], and at the same time the stud outer ring rotating device [9] drives the stud outer ring chuck [5] and the stud outer ring [2] to rotate, so that the stud outer ring [2] Friction with the metal substrate [3] produces heat, and the temperature of the friction part of the metal substrate [3] reaches the plastic temperature range of its material; fourth, the frictional temperature rise of the stud: on the basis of the metal substrate [3] friction preheating working state , the stud chuck [4] and the metal stud [1] are driven down by the stud axial displacement device [6], so that the metal stud [1] is in close contact with the metal substrate [3], and at the same time the stud rotation device [ 7] Drive the stud chuck [4] and the metal stud [1] to rotate, so that the metal stud [1] and the metal substrate [3] produce heat by friction, and the two kinds of friction heat make the metal stud [1] and The temperature of the metal matrix [3] reaches the solid-phase welding temperature range of the contact surface material; fifth, the outer stud ring is withdrawn: the stud outer ring chuck [5] is driven by the axial displacement device [8] of the stud outer ring And stud outer ring [2], the height of lifting stud outer ring [2] is 5 ~ 12mm, then stop its rotation; 6th, stud upsetting welding: act on the stud brake [10] The stud chuck [4] and the metal stud [1] stop rotating, and then the stud chuck [4] is driven by the stud axial displacement device [6] to the metal stud [1] towards the metal substrate [3] Implement upsetting, the stud chuck [4] loosens the clamping of the metal stud [1], and the stud chuck [4] is lifted by the stud axial displacement device [6] to make it leave the welded metal stud [1]. The present invention completes the composite friction welding of each metal stud in a reciprocating manner.
本发明提出的复合摩擦热源的金属螺柱焊接系统用于圆形实心金属螺柱的焊接，其金属螺柱[1]为直径大于等于10mm的铝制圆形实心金属螺柱或直径大于等于25mm的钢制圆形实心金属螺柱，其它配置要求和工作方式与实施例1所述的全部内容相同。The metal stud welding system of the compound friction heat source proposed by the present invention is used for the welding of circular solid metal studs, and the metal studs [1] are aluminum circular solid metal studs with a diameter greater than or equal to 10mm or diameters greater than or equal to 25mm Steel circular solid metal studs, other configuration requirements and working methods are the same as those described in
实施例2。结合图3，本发明提出的用于圆形空心螺柱的复合摩擦热源的金属螺柱焊接系统，主要由圆形空心金属螺柱[1-1]、螺柱外环[2]、金属基体[3]、螺柱夹头[4]、螺柱外环夹头[5]、螺柱轴向位移装置[6]、螺柱旋转装置[7]、螺柱外环轴向位移装置[8]、螺柱外环旋转装置[9]和螺柱制动器[10]组成。其中，直径(φ)大于等于10mm的铝制圆形空心金属螺柱[1-1]或直径大于等于25mm的钢制圆形空心金属螺柱[1-1]。利用大直径螺柱外环[2]与金属基体[3]的辅助摩擦预热来提高金属基体[3]温度，增加焊接总热输入。通过螺柱外环[2]和圆形空心金属螺柱[1-1]同时与金属基体[3]摩擦分别产热升温，当圆形空心金属螺柱[1-1]和金属基体[3]的温度达到圆形空心金属螺柱[1-1]焊接需要的温度后，驱动螺柱外环夹头[5]提升螺柱外环[2]到适当高度，之后停止圆形空心金属螺柱[1-1]的旋转运动，并驱动螺柱夹头[4]对圆形空心金属螺柱[1-1]实施顶锻完成圆形空心金属螺柱[1-1]复合摩擦焊接。Example 2. In conjunction with Fig. 3, the metal stud welding system for the composite frictional heat source of the circular hollow stud proposed by the present invention mainly consists of a circular hollow metal stud [1-1], a stud outer ring [2], a metal matrix [3], stud chuck [4], stud outer ring chuck [5], stud axial displacement device [6], stud rotation device [7], stud outer ring axial displacement device [8] ], stud outer ring rotating device [9] and stud brake [10]. Among them, an aluminum circular hollow metal stud [1-1] with a diameter (φ) greater than or equal to 10 mm or a steel circular hollow metal stud [1-1] with a diameter greater than or equal to 25 mm. Utilize the auxiliary friction preheating between the outer ring [2] of the large-diameter stud and the metal matrix [3] to increase the temperature of the metal matrix [3] and increase the total heat input of welding. Through the friction between the stud outer ring [2] and the circular hollow metal stud [1-1] and the metal substrate [3] to generate heat and heat up respectively, when the circular hollow metal stud [1-1] and the metal substrate [3] ] reaches the temperature required for welding the circular hollow metal stud [1-1], drive the stud outer ring chuck [5] to lift the stud outer ring [2] to an appropriate height, and then stop the circular hollow metal stud The rotary motion of the column [1-1] drives the stud chuck [4] to perform upsetting on the circular hollow metal stud [1-1] to complete the compound friction welding of the circular hollow metal stud [1-1].
实施例3。结合图4和图5，本发明提出的用于方形金属螺柱的复合摩擦热源的金属螺柱焊接系统，主要由方形金属螺柱[1-2]、螺柱外环[2]、金属基体[3]、螺柱夹头[4]、螺柱外环夹头[5]、螺柱轴向位移装置[6]、螺柱旋转装置[7]、螺柱外环轴向位移装置[8]、螺柱外环旋转装置[9]和螺柱制动器[10]组成。其中，方形金属螺柱[1-2]为截面尺寸(边长B)大于等于10×10mm的铝制方形金属螺柱或截面尺寸大于等于25×25mm的钢制方形金属螺柱。利用大直径螺柱外环[2]的辅助摩擦预热来提高金属基体[3]温度，增加焊接总热输入。通过螺柱外环[2]和方形金属螺柱[1-2]同时与金属基体[3]摩擦分别产热升温，当方形金属螺柱[1-2]和金属基体[3]的温度达到固相焊接温度后，驱动螺柱外环夹头[5]提升螺柱外环[2]10±2mm高度，之后停止金属螺柱[1]的旋转运动，并驱动螺柱夹头[4]对方形金属螺柱[1-2]实施顶锻，完成方形金属螺柱[1-2]复合摩擦焊接。Example 3. With reference to Fig. 4 and Fig. 5, the metal stud welding system for the compound frictional heat source of square metal stud proposed by the present invention mainly consists of square metal stud [1-2], stud outer ring [2], metal matrix [3], stud chuck [4], stud outer ring chuck [5], stud axial displacement device [6], stud rotation device [7], stud outer ring axial displacement device [8] ], stud outer ring rotating device [9] and stud brake [10]. Among them, the square metal stud [1-2] is an aluminum square metal stud with a cross-sectional dimension (side length B) greater than or equal to 10×10 mm or a steel square metal stud with a cross-sectional dimension greater than or equal to 25×25 mm. Utilize the auxiliary friction preheating of the outer ring [2] of the large-diameter stud to increase the temperature of the metal substrate [3] and increase the total heat input of welding. Through the friction between the stud outer ring [2] and the square metal stud [1-2] and the metal substrate [3] to generate heat and heat up respectively, when the temperature of the square metal stud [1-2] and the metal substrate [3] reaches After the solid phase welding temperature, drive the stud outer ring chuck [5] to raise the height of the stud outer ring [2] by 10±2 mm, then stop the rotation of the metal stud [1] and drive the stud chuck [4] Upsetting is performed on the square metal stud [1-2], and the compound friction welding of the square metal stud [1-2] is completed.
本发明经反复试验验证，取得了满意的应用效果。The invention has been verified through repeated tests and has achieved satisfactory application effects.
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