TWI844880B

TWI844880B - Electrode pressurizing mechanism of impedance welding machine, impedance welding machine, welding method and manufacturing method of electromagnetic switch

Info

Publication number: TWI844880B
Application number: TW111125694A
Authority: TW
Inventors: 松井昭夫; 庄野一弘; 曽田昇吾; 山本麻人; 鳥居博之
Original assignee: 日商三菱電機股份有限公司
Priority date: 2020-06-24
Filing date: 2021-03-24
Publication date: 2024-06-11

Abstract

本發明的目的是提供一種阻抗熔接機的加壓機構，能夠不受到阻抗熔接機本體的加壓力影響來控制工件的加壓力。藉由阻抗熔接機本體的加壓機構使上部電極（2）上下移動，對配置於上部電極（2）及下部電極（5）之間的一對的工件（30、31）加壓熔接的阻抗熔接機的電極加壓機構包括：承重構件（6），設置於下部電極（5），接觸上部電極（2）承受阻抗熔接機本體施加的加壓力。The object of the present invention is to provide a pressure-applying mechanism for an impedance welding machine, which can control the pressure of a workpiece without being affected by the pressure of a body of the impedance welding machine. The electrode pressure-applying mechanism for an impedance welding machine that pressurizes and welds a pair of workpieces (30, 31) disposed between the upper electrode (2) and the lower electrode (5) by moving the upper electrode (2) up and down through the pressure-applying mechanism of the body of the impedance welding machine comprises: a load-bearing member (6) disposed on the lower electrode (5), contacting the upper electrode (2) and bearing the pressure applied by the body of the impedance welding machine.

Description

阻抗熔接機的電極加壓機構、阻抗熔接機、熔接方法以及電磁開閉器的製造方法Electrode pressurizing mechanism of impedance welding machine, impedance welding machine, welding method and manufacturing method of electromagnetic switch

本發明係有關於阻抗熔接機的電極加壓機構、阻抗熔接機、熔接方法以及電磁開閉器的製造方法。The present invention relates to an electrode pressurizing mechanism of an impedance welding machine, an impedance welding machine, a welding method and a manufacturing method of an electromagnetic switch.

過去的阻抗熔接機的電極加壓機構中，為了確保熔接時的加壓電極的追隨性，串聯配置相對於收縮量之加壓力各異的複數種類的彈簧構件，確保弱加壓及強加壓下，相對於對被熔接物的推壓力之壓下量（例如專利文獻1）。又，在其他的阻抗熔接機的電極加壓機構中，為了確保熔接時的加壓電極的追隨性，在能夠在之後安裝的保持導引部上設置複數碟型墊片，藉由這個碟型墊片的彈簧力對被熔接物（工件）加壓（例如專利文獻2）。 In the electrode pressurizing mechanism of the conventional impedance welding machine, in order to ensure the followability of the pressurizing electrode during welding, multiple types of spring components with different pressurizing forces relative to the amount of contraction are arranged in series to ensure the amount of pressure relative to the push force on the welded object under weak and strong pressure (for example, Patent Document 1). In addition, in the electrode pressurizing mechanism of other impedance welding machines, in order to ensure the followability of the pressurizing electrode during welding, multiple disc-shaped gaskets are provided on a retaining guide that can be installed later, and the welded object (workpiece) is pressurized by the spring force of the disc-shaped gaskets (for example, Patent Document 2).

先行技術文獻專利文獻1：日本特開2007-260747號公報專利文獻2：日本特開平10-249540號公報 Prior art documents Patent document 1: Japanese Patent Publication No. 2007-260747 Patent document 2: Japanese Patent Publication No. 10-249540

然而，上述的專利文獻1的阻抗熔接機的電極加壓機構中，對被熔接物的加壓力的範圍是由串聯配置的彈簧構件的組成決定，因此會有加壓力的對應範圍被限制的問題點。另外，為了擴大加壓力的對應範圍，雖然追加配置彈簧數量或彈簧種類的話能夠擴大對應範圍，但會有加壓機構大型化的問題。又，對被熔接物的加壓力是由串聯配置的彈簧構件的變形量而決定，因此會有需要調整阻抗熔接機本體的加壓機構（例如氣壓缸）的壓力調整的問題。However, in the electrode pressurizing mechanism of the impedance welding machine of the above-mentioned patent document 1, the range of the pressurizing force applied to the object to be welded is determined by the composition of the spring components arranged in series, so there is a problem that the corresponding range of the pressurizing force is limited. In addition, in order to expand the corresponding range of the pressurizing force, although the corresponding range can be expanded by adding the number of springs or the type of springs, there is a problem of enlarging the pressurizing mechanism. In addition, the pressurizing force applied to the object to be welded is determined by the deformation amount of the spring components arranged in series, so there is a problem that the pressure adjustment of the pressurizing mechanism (for example, a pneumatic cylinder) of the impedance welding machine body needs to be adjusted.

又，專利文獻2的阻抗熔接機的電極加壓機構中，配置的彈簧構件能夠在之後安裝，因此能夠容易地調整對被熔接物的加壓力的範圍，但會有與專利文獻1的阻抗熔接機相同的問題。又，也會有難以處理阻抗熔接機本體的加壓機構的強加壓領域的問題。In the electrode pressurizing mechanism of the impedance welding machine of Patent Document 2, the spring member arranged therein can be installed later, so the range of the pressurizing force on the objects to be welded can be easily adjusted, but there is the same problem as the impedance welding machine of Patent Document 1. In addition, there is also the problem that it is difficult to handle the strong pressurizing area of the pressurizing mechanism of the impedance welding machine body.

本發明揭露了用以解決上述問題的技術，目的是獲得一種阻抗熔接機的電極加壓機構，能夠不受到阻抗熔接機本體的加壓力影響，以彈簧的變形量來控制被熔接物的加壓力。The present invention discloses a technology for solving the above-mentioned problem, and aims to obtain an electrode pressurizing mechanism of an impedance welding machine, which can be independent of the pressurizing force of the impedance welding machine body and control the pressurizing force of the welded object by the deformation of the spring.

本發明揭露的阻抗熔接機的電極加壓機構，藉由阻抗熔接機本體的加壓機構使上部電極上下移動，對配置於上部電極及下部電極之間的一對的工件加壓熔接，該阻抗熔接機的電極加壓機構包括：承重構件，設置於該下部電極，接觸該上部電極承受該阻抗熔接機本體施加的加壓力。The electrode pressurizing mechanism of the impedance welding machine disclosed in the present invention moves the upper electrode up and down through the pressurizing mechanism of the impedance welding machine body, and pressurizes and welds a pair of workpieces arranged between the upper electrode and the lower electrode. The electrode pressurizing mechanism of the impedance welding machine includes: a load-bearing member, which is arranged on the lower electrode and contacts the upper electrode to bear the pressure applied by the impedance welding machine body.

根據本發明的阻抗熔接機的電極加壓機構，以承重構件承受阻抗熔接機本體的加壓力，只藉由設置於上部電極的彈性構件來加壓一對工件，因此能夠得到一種阻抗熔接機，能夠不受到阻抗熔接機本體的加壓力影響，以彈簧構件的變形量來控制對工件的加壓力。According to the electrode pressurizing mechanism of the impedance welding machine of the present invention, the load-bearing component bears the pressure of the impedance welding machine body, and a pair of workpieces are pressurized only by the elastic component arranged on the upper electrode. Therefore, an impedance welding machine can be obtained that is not affected by the pressure of the impedance welding machine body and controls the pressure on the workpiece by the deformation of the spring component.

[實施型態1] 以下，使用圖式說明本發明的阻抗熔接機的電極加壓機構的實施型態。另外，各圖中，相同或相當的部分會標示相同符號。圖1係顯示實施型態1的阻抗熔接機的電極加壓機構的主要部分剖面圖，圖1（A）係側剖面圖，圖1（B）係沿圖1（A）中的B-B線的剖面圖。 [Implementation 1] Below, the implementation of the electrode pressurizing mechanism of the impedance welding machine of the present invention is described using drawings. In addition, in each figure, the same or equivalent parts are marked with the same symbols. Figure 1 is a cross-sectional view of the main parts of the electrode pressurizing mechanism of the impedance welding machine of implementation 1, Figure 1 (A) is a side cross-sectional view, and Figure 1 (B) is a cross-sectional view along the B-B line in Figure 1 (A).

＜阻抗熔接機的組成＞圖中，阻抗熔接機中設置有可動部10及固定部20。可動部10是由承受來自做為阻抗熔接機本體的電極加壓手段之汽壓缸（未圖示）的加壓力的平台1、固定於平台1正下方的上部電極2、透過彈簧3這個彈性構件安裝於上部電極2的下部的可動電極4所組成。固定部20是由與間隔著空間面向可動電極4配置的下部電極5、固定附著於下部電極5的上面兩側並限制上部電極2的下降位置的絕緣材形成的承重構件6所組成。又，面向阻抗熔接機的可動電極4的下部電極5的上面，重疊設置了要熔接的上工件30及下工件31。 <Composition of the resistance welding machine> In the figure, the resistance welding machine is provided with a movable part 10 and a fixed part 20. The movable part 10 is composed of a platform 1 that receives the pressure from a steam cylinder (not shown) as an electrode pressurizing means of the resistance welding machine body, an upper electrode 2 fixed directly below the platform 1, and a movable electrode 4 mounted on the lower part of the upper electrode 2 through a spring 3, which is an elastic member. The fixed part 20 is composed of a lower electrode 5 arranged facing the movable electrode 4 with a space between them, and a load-bearing member 6 formed of an insulating material fixedly attached to both sides of the upper surface of the lower electrode 5 and restricting the descending position of the upper electrode 2. Furthermore, the upper workpiece 30 and the lower workpiece 31 to be welded are stacked on the upper surface of the lower electrode 5 facing the movable electrode 4 of the impedance welding machine.

在此，上部電極2中與承重構件6接觸的面、以及可動電極4中與工件30接觸的面之間的距離X，被設定成比承重構件6中與上部電極2接觸的面、以及工件30中與可動電極4接觸的面之間的距離Y大。另外，可動電極4電性連接至上部電極2，同時藉由固定於上部電極2的螺絲（未圖示）將彈簧3鎖緊，形成向彈簧3施加壓力的機構。 Here, the distance X between the surface of the upper electrode 2 in contact with the load-bearing member 6 and the surface of the movable electrode 4 in contact with the workpiece 30 is set to be larger than the distance Y between the surface of the load-bearing member 6 in contact with the upper electrode 2 and the surface of the workpiece 30 in contact with the movable electrode 4. In addition, the movable electrode 4 is electrically connected to the upper electrode 2, and the spring 3 is locked by a screw (not shown) fixed to the upper electrode 2, forming a mechanism for applying pressure to the spring 3.

＜阻抗熔接機的動作＞接下來使用圖2說明，藉由這樣的阻抗熔接機將做熔接物的上工件30熔接到做為被熔接物的下工件31的方法。首先，在步驟ST1，將下工件31及上工件30重疊配置到下部電極5上。接著，使做為阻抗熔接機本體的電壓加壓手段的氣壓缸動作，讓上部電極2下降，使可動電極4抵接至上工件30（步驟ST2）。接著，使上部電極2下降，將上部電極2抵接至承重構件6（步驟ST3）。 <Operation of the impedance welding machine> Next, FIG. 2 is used to explain the method of welding the upper workpiece 30 to be welded to the lower workpiece 31 to be welded by such an impedance welding machine. First, in step ST1, the lower workpiece 31 and the upper workpiece 30 are stacked and arranged on the lower electrode 5. Then, the pneumatic cylinder as the voltage pressurizing means of the impedance welding machine body is operated to lower the upper electrode 2 and make the movable electrode 4 contact the upper workpiece 30 (step ST2). Then, the upper electrode 2 is lowered and contacted to the load-bearing member 6 (step ST3).

此時，如圖3所示，因為彈簧3變形被可動電極4及下部電極5所夾的工件30、31被適當的加壓力推壓。也就是，上述的距離X比距離Y大，因此做為阻抗熔接機本體的電極加壓手段之氣壓缸施加的加壓力被承重構件6承受，工件30、31只被施加彈簧3的變形量的壓力。因此，藉由適當地設定彈簧3的變形力，能夠使適當的壓力施加到工件30、31。 At this time, as shown in FIG3, the workpieces 30 and 31 sandwiched by the movable electrode 4 and the lower electrode 5 are pushed by appropriate pressure because the spring 3 is deformed. That is, the distance X is larger than the distance Y, so the pressure applied by the pneumatic cylinder as the electrode pressurizing means of the resistance welding machine body is borne by the load-bearing member 6, and the workpieces 30 and 31 are only applied with pressure equal to the deformation amount of the spring 3. Therefore, by appropriately setting the deformation force of the spring 3, appropriate pressure can be applied to the workpieces 30 and 31.

接著，在步驟ST4，當上部電極2及下部電極5之間流過電流，上工件30及下工件31的接觸部因為接觸阻抗而發熱，接觸部熔融而能夠將兩者熔接（步驟ST4）。最後，使上部電極2及可動電極4上升，取出工件30、31（步驟ST5）。另外，上工件30及下工件31的接觸部熔融而發生微小變形，但藉由彈簧3的彈簧力使可動電極4追隨工件30，而能夠維持對工件30的加壓力，因此能夠進行穩定的熔接。 Next, in step ST4, when current flows between the upper electrode 2 and the lower electrode 5, the contact portion of the upper workpiece 30 and the lower workpiece 31 generates heat due to the contact impedance, and the contact portion melts and the two can be welded (step ST4). Finally, the upper electrode 2 and the movable electrode 4 are raised to remove the workpieces 30 and 31 (step ST5). In addition, the contact portion of the upper workpiece 30 and the lower workpiece 31 melts and slightly deforms, but the spring force of the spring 3 makes the movable electrode 4 follow the workpiece 30, and the pressure on the workpiece 30 can be maintained, so that stable welding can be performed.

＜效果的背景＞一般來說，熔接時的加壓力會因為工件30、31的材質、尺寸、以及熔接時與工件30、31接觸的電極尺寸的不同使得加壓力的適當值變得不同，而需要調整。在這個情況下，藉由改變阻抗熔接機本體的氣壓缸的壓力而能夠調整加壓力，但因為氣壓缸的內部構造的摩擦阻抗，特別是在氣壓缸壓力低的領域，氣壓缸開始動的時間間隔會增加，因此施予加壓力變得耗時，熔接週期變大。又，因為無法應付通電時的熔接部的微小變形，電極的追隨性惡化，對工件30、31的加壓力降低可能使得熔接部產生噴濺，造成熔接品質下降。又，為了擴大阻抗熔接機的加壓力的適當範圍的處理，雖然能夠透過設備的加壓機構的改造或者是新的阻抗熔接機的導入來達成，但會有需要設備投資的問題。 <Background of the effect> Generally, the pressure during welding needs to be adjusted because the appropriate value of the pressure varies depending on the material and size of the workpieces 30 and 31, and the size of the electrode that contacts the workpieces 30 and 31 during welding. In this case, the pressure can be adjusted by changing the pressure of the air cylinder of the impedance welding machine body, but due to the friction resistance of the internal structure of the air cylinder, the time interval for the air cylinder to start moving increases, especially in the area where the air cylinder pressure is low, so it takes time to apply the pressure, and the welding cycle becomes longer. In addition, because it cannot cope with the slight deformation of the welded part when the power is turned on, the tracking performance of the electrode deteriorates, and the pressure applied to the workpieces 30 and 31 is reduced, which may cause splashing in the welded part, resulting in a decrease in the welding quality. In addition, in order to expand the appropriate range of pressure of the impedance welding machine, although it can be achieved by modifying the pressure mechanism of the equipment or introducing a new impedance welding machine, there will be a problem of equipment investment.

＜效果的說明＞對此，上述的實施型態1中，以承重構件6承受做為阻抗熔接機本體的電極加壓手段之氣壓缸的加壓力，因此，對工件30、31的加壓力能夠不受到阻抗熔接機本體的電極加壓手段的影響，而只以彈簧3來控制。因此，即使工件30、31的材質、厚度、與工件30、31接觸的可動電極4及下部電極5的面積不同，而需要裝置的加壓適當範圍外的加壓力的情況下，能夠藉由螺絲來調整彈簧3的變更或彈簧3的變形量，能夠抑制設備投資。 <Explanation of Effect> In the above-mentioned embodiment 1, the pressure of the air cylinder as the electrode pressurizing means of the resistance welding machine body is received by the load-bearing member 6, so the pressure on the workpieces 30 and 31 can be controlled only by the spring 3 without being affected by the electrode pressurizing means of the resistance welding machine body. Therefore, even if the material and thickness of the workpieces 30 and 31, and the areas of the movable electrode 4 and the lower electrode 5 in contact with the workpieces 30 and 31 are different, and the pressure outside the appropriate range of the device is required, the change of the spring 3 or the deformation amount of the spring 3 can be adjusted by the screw, and the equipment investment can be suppressed.

又，工件30、31因為彈簧3加壓可動電極4而被推壓，因此通電時的熔接部的微小變形的處理，可以用彈簧3只讓可動電極4追隨即可，而不需要使平台1及上部電極2追隨，因此慣性力小能夠使加壓力的追隨性良好。又，以承重構件6承受阻抗熔接機本體的加壓力，因此能夠不對彈簧3施加過度的承重而防止彈簧3的破損。因此，能夠獲得便宜且性能佳的阻抗熔接機的電極加壓機構。另外，上部電極2及下部電極5的平行度能夠藉由承重構件6的高度，因此調整容易。又，承重構件6的配置不被左右2個位置限定，即使在下部電極5的外周側平衡地配置複數個也能夠獲得相同的效果。 Furthermore, the workpieces 30 and 31 are pushed because the spring 3 presses the movable electrode 4. Therefore, the processing of the slight deformation of the welded portion when the power is turned on can be handled by only allowing the movable electrode 4 to follow the spring 3, without the need to let the platform 1 and the upper electrode 2 follow. Therefore, the inertial force is small and the tracking performance of the pressurizing force is good. In addition, the pressure of the impedance welding machine body is borne by the load-bearing member 6, so that the spring 3 is not excessively loaded and the spring 3 is prevented from being damaged. Therefore, a cheap and high-performance electrode pressurizing mechanism of the impedance welding machine can be obtained. In addition, the parallelism of the upper electrode 2 and the lower electrode 5 can be adjusted by the height of the load-bearing member 6, so it is easy to adjust. Furthermore, the configuration of the load-bearing member 6 is not limited to two positions on the left and right, and the same effect can be obtained even if multiple load-bearing members are configured in a balanced manner on the outer periphery of the lower electrode 5.

[實施型態2] 圖4係顯示實施型態2的阻抗熔接機的電極加壓機構的主要部分剖面圖。圖中，可動電極4是由具有凹部的可動電極本體4a、被螺絲（未圖示）安裝於這個可動電極本體4a的凹部，被推壓至工件30的可拆卸的更換電極4b所構成。在此，可動電極本體4a被設定成熔接時不與工件30接觸的大小。藉由這樣的組成，當電極表面產生傷痕或髒污時，能夠只將更換電極4b拆下進行更換，因此能夠抑制維護費用。又，當電極的磨損而需要更換熔接電極的情況下，因為只要更換直接與工件30接觸的更換電極4b即可，因此能夠更為經濟。 [Implementation Form 2] FIG. 4 is a cross-sectional view showing the main parts of the electrode pressurizing mechanism of the impedance welding machine of Implementation Form 2. In the figure, the movable electrode 4 is composed of a movable electrode body 4a having a recess, a detachable replacement electrode 4b which is mounted in the recess of the movable electrode body 4a by a screw (not shown), and is pushed to the workpiece 30. Here, the movable electrode body 4a is set to a size that does not contact the workpiece 30 during welding. With such a composition, when the electrode surface is scratched or contaminated, only the replacement electrode 4b can be removed and replaced, so that maintenance costs can be suppressed. Furthermore, when the electrode is worn and the welding electrode needs to be replaced, it is more economical because only the replacement electrode 4b that is in direct contact with the workpiece 30 needs to be replaced.

[實施型態3] 圖5係顯示實施型態3的阻抗熔接機的電極加壓機構的主要部分剖面圖。在圖中，透過設置於可動電極4的4個角落的彈簧3來連結上部電極2。像這樣配置彈簧3在4個角落，以4個彈簧施加加壓力，因此能夠抑制彈簧的高度，增大可動電極4及下部電極5的距離，即使是有高度的工件31、31也能夠熔接。又，對工件30、31加壓時，可動電極4會追隨工件30的抵接面，能夠抑制工件30的傾斜或上下電極間的平行度的影響，因為加壓力不足及不均一的減低而夠穩定地進行熔接。 [Implementation Type 3] Fig. 5 is a cross-sectional view of the main parts of the electrode pressurizing mechanism of the impedance welding machine of Implementation Type 3. In the figure, the upper electrode 2 is connected by springs 3 provided at the four corners of the movable electrode 4. By arranging the springs 3 at the four corners in this way and applying the pressurizing force by the four springs, the height of the springs can be suppressed, and the distance between the movable electrode 4 and the lower electrode 5 can be increased, so that even high workpieces 31, 31 can be welded. Furthermore, when the workpieces 30 and 31 are pressurized, the movable electrode 4 will follow the abutment surface of the workpiece 30, which can suppress the influence of the inclination of the workpiece 30 or the parallelism between the upper and lower electrodes, and the welding can be performed stably because the insufficient and uneven pressure is reduced.

另外，彈簧3不分別設置在可動電極4的4個角落，而是平衡地配置成對複數個彈簧加壓時各彈簧的加壓力均一即可。例如，如圖6（A）所示可動電極4是圓形的情況下，將彈簧3配置在等間隔的3個點，又，如圖6（B）所示是長方形電極的情況下，則配置在左右的2個點即可。In addition, the springs 3 are not arranged at the four corners of the movable electrode 4, but are arranged in a balanced manner so that the pressure applied by each spring is uniform when the plurality of springs are pressurized. For example, when the movable electrode 4 is circular as shown in FIG6 (A), the springs 3 are arranged at three points at equal intervals, and when the movable electrode is rectangular as shown in FIG6 (B), the springs 3 are arranged at two points on the left and right.

[實施型態4] 圖7係顯示實施型態4的阻抗熔接機的電極加壓機構的主要部分平面圖。上述的實施型態1中，將承重構件6配置在下部電極5的左右2個位置，但也可以如圖7所示地配置在下部電極5的上面的外周側3個位置，同樣能夠獲得上部電極2及下部電極5的平行度的調整變得容易的效果。另外，上述的實施型態中，雖然使用彈簧3對工件30、31施加接觸壓力來組成，但也能夠使用橡膠或可彈性變形的樹脂成型品等的彈性構件同樣地組成。 [Implementation 4] FIG. 7 is a plan view showing the main parts of the electrode pressurizing mechanism of the impedance welding machine of Implementation 4. In the above-mentioned Implementation 1, the load-bearing member 6 is arranged at two positions on the left and right of the lower electrode 5, but it can also be arranged at three positions on the outer peripheral side of the upper surface of the lower electrode 5 as shown in FIG. 7, and the effect of facilitating the adjustment of the parallelism of the upper electrode 2 and the lower electrode 5 can be obtained. In addition, in the above-mentioned implementation, although the spring 3 is used to apply contact pressure to the workpieces 30 and 31 to form a structure, it can also be formed in the same manner using an elastic member such as rubber or elastically deformable resin molded products.

[實施型態5] 圖8係顯示實施型態5的阻抗熔接機的電極加壓機構的主要部分平面圖及剖面圖，如圖8（B）所示，將承重構件6以上部電極2側的絕緣性樹脂形成的承重構件部6a、支持承重構件部6a的金屬材料形成的承重構件部6b構成，使得電流不會從上部電極2承重構件6流到下部電極5。又，藉由在承重構件部6a及承重構件部6b之間夾持墊片，能夠調整彈簧3的加壓力。又，承重構件部6b能夠使用縱彈性係數高的金屬，能夠將變形量抑制地較小，更進一步提昇加壓力的管理。 [Implementation form 5] Fig. 8 is a plan view and a cross-sectional view of the main parts of the electrode pressurizing mechanism of the impedance welding machine of implementation form 5. As shown in Fig. 8 (B), the load-bearing member 6 is composed of a load-bearing member part 6a formed of an insulating resin on the side of the upper electrode 2 and a load-bearing member part 6b formed of a metal material supporting the load-bearing member part 6a, so that the current does not flow from the upper electrode 2 to the lower electrode 5. In addition, by sandwiching a gasket between the load-bearing member part 6a and the load-bearing member part 6b, the pressurizing force of the spring 3 can be adjusted. In addition, the load-bearing component 6b can use metal with a high longitudinal elastic modulus, which can suppress the deformation to a smaller extent and further improve the management of pressure.

[實施型態6] 圖9係顯示使用上述的阻抗熔接機製造的實施型態6的電磁開閉器的概要圖。圖中，電磁開閉器100中使用了以上述的熔接方法製造的一對的工件：磁間隙物101、可動鐵心102。在此，可動鐵心102是以鐵類的磁性金屬，例如一般構造用壓延材的SS400所構成。磁間隙物101是以容易與鐵類磁性金屬熔接的非磁性金屬的不鏽鋼材，特別是SUS304等的沃斯田鐵類不鏽鋼材的薄板所構成。 [Implementation Type 6] FIG. 9 is a schematic diagram showing an electromagnetic switch of Implementation Type 6 manufactured using the above-mentioned impedance welding machine. In the figure, a pair of workpieces manufactured by the above-mentioned welding method are used in the electromagnetic switch 100: a magnetic gap 101 and a movable iron core 102. Here, the movable iron core 102 is made of an iron-based magnetic metal, such as SS400, which is a general structural die-cast material. The magnetic gap 101 is made of a non-magnetic metal stainless steel material that is easily welded to an iron-based magnetic metal, especially a thin plate of austenitic stainless steel such as SUS304.

又，電磁開閉器100具備支持可動鐵心102的絕緣體之樹脂成型品103、固定於樹脂成型品103的可動接點104、吸引可動鐵心102的電磁鐵105、將可動鐵心102朝向遠離電磁鐵105的固定鐵心105a偏壓的彈簧106、收納各構件且面向可動接點104將固定接點107固定的殼體108。Furthermore, the electromagnetic switch 100 includes a resin molded product 103 as an insulator supporting a movable iron core 102, a movable contact 104 fixed to the resin molded product 103, an electromagnet 105 for attracting the movable iron core 102, a spring 106 for biasing the movable iron core 102 toward a fixed iron core 105a away from the electromagnet 105, and a housing 108 for accommodating the various components and fixing a fixed contact 107 facing the movable contact 104.

在這個構造下，當對電磁鐵105通電，一對的驅動線圈產生磁束，這個磁束形成從電磁鐵105的一側的固定鐵心105a通過磁間隙物101及可動鐵心102回到另一側的固定鐵心105a的磁路。利用這個磁束抵抗彈簧106的壓力，可動鐵心102被固定鐵心105a吸引，結果，可動接點104與固定接點107接觸而使電路閉合。In this structure, when the electromagnet 105 is energized, a pair of driving coils generates a magnetic flux, which forms a magnetic circuit from the fixed core 105a on one side of the electromagnet 105 through the magnetic gap 101 and the movable core 102 back to the fixed core 105a on the other side. The movable core 102 is attracted to the fixed core 105a by using this magnetic flux to resist the pressure of the spring 106, and as a result, the movable contact 104 contacts the fixed contact 107 to close the circuit.

接著，當驅動線圈的電流被切斷，驅動線圈就不會產生磁束，但當可動鐵心102及固定鐵心105a之間沒有空氣間隙的情況下，藉由可動鐵心102及固定鐵心105a的素材所具有的保磁力，兩者間產生殘留磁力，可能會造成彈簧106無法強過吸引力使得電路無法開路的狀況。然而，藉由設置非磁性材形成的磁間隙物101，磁間隙物101存在的部分在磁路上被視為與空氣間隙相等，因此超過可動鐵心102及固定鐵心105a的素材的保磁力的逆磁場施加於兩鐵心，而能獲得使殘留磁束趨近0的效果。這個結果，就能夠以彈簧106將可動鐵心102上推，可動鐵心102從固定鐵心105a分離使電路打開。如以上所述，使用本發明所揭露的阻抗熔接機，熔接電磁開閉器的磁間隙物101及可動鐵心102來形成，結果能夠獲得便宜且高性能的電磁開閉器。 Next, when the current of the driving coil is cut off, the driving coil will not generate a magnetic flux, but when there is no air gap between the movable iron core 102 and the fixed iron core 105a, the residual magnetic force is generated between the movable iron core 102 and the fixed iron core 105a by the coercive force of the materials of the movable iron core 102 and the fixed iron core 105a, which may cause the spring 106 to be unable to be stronger than the attractive force and the circuit cannot be opened. However, by providing the magnetic gap 101 formed of non-magnetic material, the part where the magnetic gap 101 exists is regarded as equal to the air gap on the magnetic circuit, so the reverse magnetic field exceeding the coercive force of the materials of the movable iron core 102 and the fixed iron core 105a is applied to the two iron cores, and the effect of making the residual magnetic flux approach 0 can be obtained. As a result, the spring 106 can push the movable iron core 102 upward, and the movable iron core 102 is separated from the fixed iron core 105a to open the circuit. As described above, the magnetic gap 101 and the movable iron core 102 of the electromagnetic switch are welded using the impedance welding machine disclosed in the present invention, and as a result, a cheap and high-performance electromagnetic switch can be obtained.

另外，本發明並不限定於上述的實施型態1，甚至是，實施型態1中記載的各式各樣的特徵、態樣及功能並不限定於特定的實施型態的使用，能夠單獨、或以各種組合使用於實施型態。因此，未例示的無數的變形例也在本發明說明書中揭露的技術範圍內被設想。例如，將至少1個構成要素變形的情況下，假設追加個情況及省略的情況也包含在內。In addition, the present invention is not limited to the above-mentioned embodiment 1. In fact, the various features, aspects and functions described in the embodiment 1 are not limited to the use of a specific embodiment, and can be used in the embodiment alone or in various combinations. Therefore, countless variations that are not illustrated are also envisioned within the technical scope disclosed in the specification of the present invention. For example, when at least one constituent element is modified, it is assumed that additional cases and omissions are also included.

1:平台 2:上部電極 3:彈性構件(彈簧) 4:可動電極 4a:可動電極本體 4b:更換電極 5:下部電極 6:承重構件 6a,6b:承重構件部 10:可動部 20:固定部 30,31:工件(熔接器) 100:電磁開閉器 101:磁間隙物 102:可動鐵心 103:樹脂成型品 104:可動接點 105:電磁鐵 105a:固定鐵心 106:彈簧 107:固定接點 108:殼體 1: Platform 2: Upper electrode 3: Elastic member (spring) 4: Movable electrode 4a: Movable electrode body 4b: Replacement electrode 5: Lower electrode 6: Load-bearing member 6a, 6b: Load-bearing member part 10: Movable part 20: Fixed part 30, 31: Workpiece (welder) 100: Electromagnetic switch 101: Magnetic gap 102: Movable iron core 103: Resin molded product 104: Movable contact 105: Electromagnet 105a: Fixed iron core 106: Spring 107: Fixed contact 108: Housing

圖1係顯示實施型態1的阻抗熔接機的電極加壓機構的主要部分剖面圖及主要部分平面圖。圖2係說明實施型態1的阻抗熔接機的熔接方法的流程圖。圖3係顯示實施型態1的阻抗熔接機的動作狀態的剖面圖。圖4係顯示實施型態2的阻抗熔接機的電極加壓機構的主要部分剖面圖。圖5係顯示實施型態3的阻抗熔接機的電極加壓機構的主要部分剖面圖及主要部分平面圖。圖6係顯示實施型態3的其他的實施型態的主要部分平面圖。圖7係顯示實施型態4的阻抗熔接機的電極加壓機構的主要部分平面圖。圖8係顯示實施型態5的阻抗熔接機的主要部分平面圖及剖面圖。圖9係顯示使用阻抗熔接機製造的實施型態6的電磁開閉器的概要圖。 FIG. 1 is a cross-sectional view and a plan view of the main parts of the electrode pressurizing mechanism of the impedance welding machine of the embodiment 1. FIG. 2 is a flow chart for explaining the welding method of the impedance welding machine of the embodiment 1. FIG. 3 is a cross-sectional view showing the operation state of the impedance welding machine of the embodiment 1. FIG. 4 is a cross-sectional view of the main parts of the electrode pressurizing mechanism of the impedance welding machine of the embodiment 2. FIG. 5 is a cross-sectional view and a plan view of the main parts of the electrode pressurizing mechanism of the impedance welding machine of the embodiment 3. FIG. 6 is a plan view of the main parts of other embodiments of the embodiment 3. FIG. 7 is a plan view of the main parts of the electrode pressurizing mechanism of the impedance welding machine of the embodiment 4. FIG. 8 is a plan view and a cross-sectional view of the main parts of the impedance welding machine of the embodiment 5. FIG9 is a schematic diagram showing an electromagnetic switch of embodiment 6 manufactured using an impedance welding machine.

1:平台 1: Platform

2:上部電極 2: Upper electrode

3:彈性構件(彈簧) 3: Elastic components (springs)

4:可動電極 4: Movable electrode

5:下部電極 5: Lower electrode

6:承重構件 6: Load-bearing components

10:可動部 10: Movable parts

20:固定部 20:Fixed part

30,31:工件(熔接器) 30,31: Workpiece (welder)

X:距離 X: distance

Y:距離 Y: distance

Claims

一種阻抗熔接機的電極加壓機構，藉由阻抗熔接機本體的加壓機構使上部電極上下移動，對配置於上部電極及下部電極之間的一對的工件加壓熔接，該阻抗熔接機的電極加壓機構包括：承重構件，設置於該下部電極，接觸該上部電極承受該阻抗熔接機本體施加的加壓力；以及可動電極，透過彈性構件設置於該上部電極，加壓時與該工件接觸；其中該可動電極電性連接至該上部電極；其中該上部電極的與該承重構件接觸的面、及該可動電極的與該工件接觸的面之間的距離，比該承重構件的與該上部電極接觸的面、及該工件的與該可動電極接觸的面之間的距離大。 An electrode pressurizing mechanism of an impedance welding machine, wherein the upper electrode is moved up and down by the pressurizing mechanism of the impedance welding machine body, and a pair of workpieces arranged between the upper electrode and the lower electrode are pressurized and welded. The electrode pressurizing mechanism of the impedance welding machine comprises: a load-bearing member, which is arranged on the lower electrode and contacts the upper electrode to bear the pressure applied by the impedance welding machine body; and a movable electrode. , which is arranged on the upper electrode through an elastic member and contacts the workpiece when pressurized; wherein the movable electrode is electrically connected to the upper electrode; wherein the distance between the surface of the upper electrode in contact with the load-bearing member and the surface of the movable electrode in contact with the workpiece is greater than the distance between the surface of the load-bearing member in contact with the upper electrode and the surface of the workpiece in contact with the movable electrode.

一種阻抗熔接機的電極加壓機構，藉由阻抗熔接機本體的加壓機構使上部電極上下移動，對配置於上部電極及下部電極之間的一對的工件加壓熔接，該阻抗熔接機的電極加壓機構包括：承重構件，設置於該下部電極，接觸該上部電極承受該阻抗熔接機本體施加的加壓力；以及可動電極，透過彈性構件設置於該上部電極，加壓時與該工件接觸；其中該可動電極電性連接至該上部電極；其中移動該上部電極與該承重構件接觸之前，該可動電極接觸該工件對該工件加壓。 An electrode pressurizing mechanism of an impedance welding machine, wherein the upper electrode is moved up and down by the pressurizing mechanism of the impedance welding machine body, and a pair of workpieces disposed between the upper electrode and the lower electrode are pressurized and welded. The electrode pressurizing mechanism of the impedance welding machine comprises: a load-bearing member, which is arranged on the lower electrode and contacts the upper electrode to bear the pressure applied by the impedance welding machine body; and a movable electrode, which is arranged on the upper electrode through an elastic member and contacts the workpiece when pressurized; wherein the movable electrode is electrically connected to the upper electrode; wherein before the upper electrode is moved to contact the load-bearing member, the movable electrode contacts the workpiece to pressurize the workpiece.

如請求項1或2之阻抗熔接機的電極加壓機構，其中該可動電極由可動電極本體、以及固定於該可動電極本體且用以推壓該工件的可拆卸的更換電極所構成。 The electrode pressurizing mechanism of the impedance welding machine as claimed in claim 1 or 2, wherein the movable electrode is composed of a movable electrode body and a detachable replacement electrode fixed to the movable electrode body and used to push the workpiece.

如請求項1或2之阻抗熔接機的電極加壓機構，其中將設置於該上部電極及該可動電極之間的該彈性構件配置複數個。 The electrode pressurizing mechanism of the impedance welding machine as claimed in claim 1 or 2, wherein the elastic member disposed between the upper electrode and the movable electrode is arranged in plurality.

如請求項1或2之阻抗熔接機的電極加壓機構，其中將承受該阻抗熔接機本體的加壓力的該承重構件，配置複數個於該下部電極的外周側。 In the electrode pressurizing mechanism of the impedance welding machine of claim 1 or 2, the load-bearing member that will bear the pressure of the impedance welding machine body is arranged in plurality on the outer peripheral side of the lower electrode.

如請求項1或2之阻抗熔接機的電極加壓機構，其中該承重構件由該上部電極側的絕緣性樹脂形成的承重構件部、以及支持該承重構件部的金屬材料形成的承重構件部所構成。 The electrode pressurizing mechanism of the impedance welding machine as claimed in claim 1 or 2, wherein the load-bearing member is composed of a load-bearing member part formed of an insulating resin on the upper electrode side, and a load-bearing member part formed of a metal material supporting the load-bearing member part.

如請求項1或2之阻抗熔接機的電極加壓機構，其中該彈性構件以彈簧構成。 The electrode pressurizing mechanism of the impedance welding machine as claimed in claim 1 or 2, wherein the elastic member is composed of a spring.

一種阻抗熔接機，包括：如請求項1至7任一者之阻抗熔接機的電極加壓機構。 An impedance welding machine, comprising: an electrode pressurizing mechanism of the impedance welding machine as claimed in any one of claims 1 to 7.

一種熔接方法，使用如請求項8之阻抗熔接機，包括：設置一對的工件於該上部電極及該下部電極之間的第1步驟；移動該上部電極，使設置於該上部電極的該可動電極與該工件接觸的第2步驟；再移動該上部電極使該上部電極接觸承重構件，加壓該一對的工件的第3步驟；以及在該上部電極及該下部電極間通電，熔接該一對的工件的第4步驟。 A welding method, using the impedance welding machine as claimed in claim 8, comprises: a first step of setting a pair of workpieces between the upper electrode and the lower electrode; a second step of moving the upper electrode so that the movable electrode set on the upper electrode contacts the workpieces; a third step of moving the upper electrode so that the upper electrode contacts the load-bearing member to pressurize the pair of workpieces; and a fourth step of applying power between the upper electrode and the lower electrode to weld the pair of workpieces.

一種電磁開閉器的製造方法，使用如請求項9之熔接方法，來熔接電磁開閉器的可動鐵心、以及非磁性金屬形成的間隙物。A method for manufacturing an electromagnetic switch uses the welding method of claim 9 to weld the movable iron core of the electromagnetic switch and a gap formed by non-magnetic metal.