1364336 六、發明說明： 【發明所屬之技術領域】 本發明是有關於一種焊接裝置，特別是指一種電阻焊 接裝置。 ， 【先前技術】 一般呈圓向狀之飲料罐或糖果罐之罐體，多是利用製 罐機將金屬片材揉合成圓筒狀並焊接同定而成。 參閱圖1、2,為現有一種製罐機丨，包含一用以將一 金屬片材（圖未示）揉成圓筒狀之揉鐵單元U、一焊接單 元12，及一將該金屬片材推往該焊接單元12進行焊接之運 达旱元13。該運送單元13包括一基座131.、二對稱設置於 該基座131之推爪模組丨32、一驅動該等推爪模組132作動 之馬達133、及一連結該等推爪132模組與該馬達133之傳 動模組134,每一推爪模組132具有皮帶135及複數等間 隔設置於該皮帶135且用以推頂該金屬片材之推爪136。該 傳動模組134具有二分別與料推爪模組132連結之傳動 軸137 ’及-連結該等傳動轴137與該馬達133且具有複數 齒部之皮π 138 ’如此’當該馬達133運轉時，即可經由該 皮帶138帶動料傳_ m運轉，使料推爪模組132 之皮帶135轉動，進而使該等推爪136將揉成圓筒狀之該 金屬片材送往該焊接單元12進行焊接。 田該焊接單A 12之焊接速度進行調整時，可藉由調整 該皮帶138之鬆緊程度或是更換不同節距之皮帶來改變該 等推爪136之速度，進而調整每單位時間内可以推送呈圓 3 1364336 筒狀之該金屬片材的數量，但調整過程麻煩，且當要提高 該製罐機之生產速度時，該等推& 136為配合快速度運轉 下的精確位置，以便在正確的時間點能將揉成圓筒狀之該. 金屬片材送往該谭接單t 12進行焊接，必需有較高的位置 調整解析度’但由於該皮帶138之節距最小僅可使用8麗 左右’否則過小的皮帶138節距將會使得傳動力量太小而 無法負擔所需要的荷重’因此連帶也影響該皮冑138調整 過程中的位置調整解析度，造成該等推爪模組132每分鐘 最多只能推送450個該金屬片材至該焊接單元12進行焊接鲁 的限制，也就是該製罐機每分鐘只能成型45〇個罐體，致 使該製罐機之產能受限。 【發明内容】 因此，本發明之目的，即在提供—種調整容易且可以 提升產能之電阻焊接裝置。 於疋’本發明電阻焊接裝置是適用於將一金屬片材焊 接成一圓形罐體，並包含一機架、一進料單元、一成圓單 元、一推爪單元、一焊接單元及一控制單元◊該進料單元籲 設置於該機架，並包括複數用以輸送該金屬片材之滾軸， · 及一驅動該等滚軸轉動之送料伺服馬達。該成圓單元設置 於該機架’並用以將來自該進料早元之該金屬片材揉成圓 筒狀。該推爪單元設置於該機架，並包括二推爪模組，每 一推爪模組具有一推送呈圓筒狀之該金屬片材移動的推爪 帶’及一帶動該推爪帶轉動之推爪伺服馬達，該等推爪帶 是同步推送呈圓筒狀之該金屬片材。該焊接單元設置於該 4 136.4336 機架’並包括一對將呈圓筒狀之該金屬片材焊接成該罐體 之焊輪、一位於該推爪單元與該對焊輪之間且推送呈圓筒 狀之該金屬片材往該對焊輪移動之推進爪、一驅動該對焊 輪轉動之焊輪伺服馬達，及一驅動該推進爪作動之推進伺 服馬達。該控制單元控制該送料伺服馬達、該等推爪伺服 馬達、該焊輪伺服馬達與該推進伺服馬達相互配合作動。1364336 VI. Description of the Invention: [Technical Field] The present invention relates to a welding device, and more particularly to a resistance welding device. [Prior Art] Generally, the cans of the beverage cans or confectionery cans are generally formed by a canning machine which is formed into a cylindrical shape and welded together. Referring to Figures 1 and 2, there is a conventional can making machine, comprising a neodymium iron unit U for forming a metal sheet (not shown) into a cylindrical shape, a welding unit 12, and a metal piece The material is pushed to the welding unit 12 for welding to the dry element 13. The transport unit 13 includes a base 131. Two claw modules 32 symmetrically disposed on the base 131, a motor 133 for driving the claw modules 132, and a connecting claw 132 And a drive module 134 of the motor 133, each of the pawl modules 132 has a belt 135 and a plurality of pawls 136 disposed at equal intervals on the belt 135 for pushing the metal sheet. The transmission module 134 has two transmission shafts 137 ′ respectively coupled to the material claw module 132 and a skin π 138 ′ that connects the transmission shafts 137 and the motor 133 and has a plurality of teeth portions. When the belt 138 is driven, the belt 135 of the material claw module 132 is rotated, and the claws 136 are sent to the welding unit. 12 for welding. When the welding speed of the welding sheet A 12 is adjusted, the speed of the claws 136 can be changed by adjusting the tightness of the belt 138 or changing the skin of different pitches, thereby adjusting the pushing time per unit time. Round 3 1364336 The number of the metal sheets in a cylindrical shape, but the adjustment process is troublesome, and when the production speed of the can making machine is to be increased, the push & 136 is matched with the precise position under the rapid operation so as to be correct The time point can be turned into a cylindrical shape. The metal sheet is sent to the tan order t 12 for welding, and it is necessary to have a higher position adjustment resolution 'but only 8 of the belt 138 can be used. The left and right 'other too small belt 138 pitch will make the transmission force too small to bear the required load', so the connection also affects the position adjustment resolution during the adjustment of the skin 138, resulting in the claw module 132 A maximum of 450 pieces of the metal sheet can be pushed per minute to the welding unit 12 for welding, that is, the can making machine can only form 45 tanks per minute, resulting in limited capacity of the pot making machine. SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an electric resistance welding apparatus which is easy to adjust and which can increase productivity.于疋' The resistance welding device of the present invention is suitable for welding a metal sheet into a circular can body, and comprises a frame, a feeding unit, a round unit, a claw unit, a welding unit and a control The unit feed unit is disposed in the frame and includes a plurality of rollers for conveying the metal sheet, and a feed servo motor for driving the rollers. The rounding unit is disposed in the frame 'and is used to knead the metal sheet from the feed element in a circular shape. The claw unit is disposed on the frame, and includes two claw modules, each of the claw modules has a pusher belt that pushes the cylindrical metal sheet to move, and drives the claw belt to rotate. A pusher servo motor that pushes the metal sheet in a cylindrical shape synchronously. The welding unit is disposed on the 4 136.4336 frame 'and includes a pair of welding wheels for welding the metal sheet into a cylindrical body, and a pusher between the claw unit and the pair of welding wheels and pushing a cylindrical claw of the metal sheet moving toward the pair of welding wheels, a welding wheel servo motor for driving the pair of welding wheels, and a propulsion servo motor for driving the propeller. The control unit controls the feed servo motor, the pawl servo motors, the welding wheel servo motor and the propulsion servo motor to cooperate with each other.
藉由該控制單元控制該送料伺服馬達、該等推爪伺服 馬達、該焊輪伺服馬達與該推進伺服馬達進行調整，可以 達到調整容易以及提升產能之功效。 【實施方式】 有關本發明之前述及其他技術内容、特點與功效，在 以下配合參考圖式之一個較佳實施例的詳細說明中，將可 清楚的呈現。 g >閱圖3〜6，本發明電阻焊接裝置100之一較佳實施例 是適用於將一金屬片材20焊接成-圓形罐體21，該電阻焊By controlling the feed servo motor, the claw servo motor, the welding wheel servo motor and the propulsion servo motor to be adjusted by the control unit, the adjustment can be easily performed and the productivity can be improved. The above and other technical contents, features, and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments. g > Referring to Figures 3 to 6, a preferred embodiment of the electric resistance welding apparatus 100 of the present invention is suitable for welding a metal sheet 20 into a circular can body 21, the electric resistance welding
接裝置：00包含一機架3、一進料單元4、一成圓單元5、 推爪早7L 6、-焊接單元7、一輸送單元8，及一控制單 元9。 該機架3由該推爪單元6、焊接單元7，及輸送單元8 的排列設置，形成具有一長方向之形體。 該進料單元4設置於兮Μ ， 亥機架3之左側，並包括一對將 位於堆疊最下層的一金屬片 喝乃材20往前推送之進料爪41、一 驅動該對進料爪41作動之推^ 勒之進科伺服馬達42、複數個依序排 列且用以接收由該等進料爪 ， 41推迗而來的金屬片材20之 5 滾抽43’及—_該等軸之送制服馬達4心 元5設置於該機架3,並用以將來自該進料單 兀4之該金屬片材2〇揉成圓筒狀。 該推爪單元6設置於該 ^ ^ ^ . 機条3,並包括一與該機架3連 接之底座61、二可滑動地且 了柄°又置於該底座61之推爪座 刀m該等推爪座α上的推爪模組63、一受該 控制單元9控制且驅動該等推爪座62同 該等減座62相互靠近或遠離之爪座舰馬達64及^ 該控制單元9控制且驅動嗲黧 職4推爪座62朝該機架3上之焊 接早7^ 7方向同步簡向移動之難舰馬達65,皇中， 每一推爪模組63具有—推送呈圓筒狀之 Μ 動的推爪帶631，及一罄叙兮仏 母乃可π移 ..動^推爪帶631轉動之推爪伺服馬 達632’該荨推爪帶631各且右_ 該皮帶633上且用以頂㈣2 及複數設置於 用以頂推該金屬片材2〇之推爪634,而且 6Μ經由調整可以同步地將呈圓筒狀之該金屬 H Z送至該焊接單元7，如此，當該等推爪模組63為 配合s亥金屬片材2〇桮人士、甘 , 揉〇成某—外徑之圓筒狀時，即可藉由鲁 該爪座"ί司服馬達6 4調敕兮楚JA· / 调正該荨推爪座62之相對位置， 別位於该專推爪座6 2上二個施κt 一個推爪τ 631之間的距離，能形 成適&已揉合成圓筒狀之金屬片材2〇的外徑；另外，為配 合該金屬片材20掉合成笨供^ ‘ 成某一请南之圓筒狀時，可藉由該調 正祠服馬達65調整該等推爪座62與該焊接單元7之間的 巨離此形成適合已揉合成圓筒狀之金屬片# μ的筒高， 達到可調整配合該金屬片材2〇之外徑或筒高的功能。 6 1364336 配合參閱圖7’該焊接單元7設置於該機架3,並包括 一對將呈圓筒狀之該金屬片材2〇焊接成該罐體21之焊輪 71、-位於該推爪單元6與該對焊輪71之間且推送呈圓筒 狀之該金屬片材20往該對焊輪71移動之推進爪72、一驅 動該對焊輪71轉動之焊輪舰馬達73，及—驅動該推進爪 72作動之推進伺服馬達74。 該輸送單元8設置於該機架3,並包括—輸送該罐體 21之滑軌81、一輸送伺服馬達82，及一推動該罐體2ι在 該滑執81滑動之滾輪模組83。 该控制單το 9控制該進料伺服馬達42、該送料伺服馬 達44、β亥等推爪伺服馬達632、該爪座伺服馬達、該調 整伺服馬it 65、該焊輪飼服馬達73、該推進飼服馬達74 與該。輸送伺服馬達82相互配合作動，值得說明的是，該控 單元9可以疋一電子凸輪或是一可程式控制器（The connecting device: 00 comprises a frame 3, a feeding unit 4, a forming unit 5, a pushing claw 7L 6, a welding unit 7, a conveying unit 8, and a control unit 9. The frame 3 is arranged by the claw unit 6, the welding unit 7, and the conveying unit 8, and forms a body having a long direction. The feeding unit 4 is disposed on the left side of the 机架, hai rack 3, and includes a pair of feeding claws 41 for pushing the metal sheet 20 at the lowermost layer of the stack forward, and driving the pair of feeding claws 41 actuation of the servo motor 42, a plurality of sequential arrangement and receiving the metal sheet 20 pushed by the feeding claws 41, 5 rolling 43' and - _ The shaft-feeding uniform motor 4 is disposed on the frame 3 and is used to knead the metal sheet 2 from the feed unit 4 into a cylindrical shape. The claw unit 6 is disposed on the frame 3 and includes a base 61 connected to the frame 3, and a claw knives slidably disposed on the base 61. a pawl module 63 on the pawl base α, a pawl boat motor 64 controlled by the control unit 9 and driving the pawl seats 62 and the reducer 62 to approach or away from each other, and the control unit 9 Controlling and driving the squatting 4 pusher seat 62 to the welding on the frame 3 in the early 7^7 direction synchronously moving the difficult ship motor 65, Huangzhong, each claw module 63 has a push cylinder The movable claw strip 631, and the 罄 兮仏 乃 乃 π π π π π π π π π π π π π π π π π π π π π π And the top (4) 2 and the plurality are provided on the pushing claw 634 for pushing the metal sheet 2, and the metal HZ which is cylindrical in shape can be synchronously sent to the welding unit 7 through adjustment, so that When the claw modules 63 are matched with the shovel metal sheet 2, the stalks, the smashed into a cylindrical shape of the outer diameter, the shank can be used by the shank 4 tune JA JA JA JA / / Adjust the relative position of the 荨 荨 座 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 The outer diameter of the cylindrical metal sheet 2〇; in addition, when the metal sheet 20 is blended into a cylindrical shape, it can be adjusted by the adjustment motor 65 The large gap between the pusher seat 62 and the welding unit 7 forms a height suitable for the cylindrical metal piece #μ, and the outer diameter or the height of the metal sheet 2 can be adjusted to fit. The function. 6 1364336 Referring to FIG. 7', the welding unit 7 is disposed on the frame 3, and includes a pair of welding wheels 71 for welding the metal sheet 2 which is cylindrical into the can body 21, and is located at the claw a pushing claw 72 that moves between the unit 6 and the butt welding wheel 71 and pushes the cylindrical metal sheet 20 to the pair of welding wheels 71, a welding wheel motor 73 that drives the pair of welding wheels 71 to rotate, and - A propulsion servo motor 74 that drives the propulsion pawl 72 to actuate. The transport unit 8 is disposed on the frame 3 and includes a slide rail 81 for transporting the can body 21, a transport servo motor 82, and a roller module 83 for pushing the can body 2 to slide on the slide 81. The control unit το9 controls the feed servo motor 42, the feed servo motor 44, the β-claw servo motor 632, the pawl servo motor, the adjustment servo horse 65, the welding wheel feeding motor 73, Push the feeding motor 74 with this. The conveying servo motor 82 cooperates with each other. It is worth noting that the control unit 9 can be equipped with an electronic cam or a programmable controller (
Programmable Logic Contr〇iler，PLC)，在本實施例中，該控 制單元9是一電子凸輪。 接著說明該電阻焊接裝置100如何運作，首先，藉由 該，料單元4將位於堆疊最下層的—金屬諸Μ推往該成 圓二7C 5’藉由該成圓單元5揉合成圓筒狀’接著’再利用 〜等推爪T 631之該等推;634同步將成圓筒狀之該金屬 片材20推往6亥焊接單元7 ’中間再藉由該推進爪η再次推 送該金屬片材2G產生夠之滑移速度而移至該等焊輪71， 再藉由該等焊輪71將已揉合成圓筒狀之金屬片材20焊接 成X罐體21 ’之後’該罐體21經該滾輪模組83推送後即Programmable Logic Contr〇iler, PLC), in the present embodiment, the control unit 9 is an electronic cam. Next, how the resistance welding device 100 operates will be described. First, by the material unit 4, the metal rafts located at the lowermost layer of the stack are pushed to the rounded circle 7C 5' by the rounding unit 5 to form a cylindrical shape. 'Next' reuses the push of the claws T 631; 634 synchronously pushes the cylindrical metal sheet 20 to the middle of the 6-well welding unit 7' and pushes the metal sheet again by the advancement claw η The material 2G generates sufficient slip speed to be moved to the welding wheels 71, and the metal sheet 20 which has been kneaded by the welding wheels 71 is welded into the X tank 21' after the tank 21 After being pushed by the roller module 83,
JO 可由該滑軌81移至下—製程，例如内尼斯喷塗。 當要提升該電阻焊接裝置 該金屬片材20成形為节替置’也就是縮短將 元9提之時間時，藉由該控制單 _门/ 伺服馬達42與該送料伺服馬達4 應2〇送至該成圓單元5的時間，二 :荖，…：5將該金屬片材20揉成圓筒狀之時間， 再利用6玄控制單元9對應調整^ ^ ^ ^ ^ ^ ^ ^JO can be moved from the slide rail 81 to the lower-process, such as Neiss spray. When the metal sheet 20 is formed to be replaced by the electric resistance welding device, that is, when the time is increased, the control unit/servo motor 42 and the feed servo motor 4 are sent by the control unit. The time to the rounding unit 5, two: 荖, ...: 5, the time when the metal sheet 20 is rolled into a cylindrical shape, and then adjusted by the 6 玄 control unit 9 ^ ^ ^ ^ ^ ^ ^ ^
I =::::之_行_，二: ^ ^ 因為該等推爪帶631轉速的調整 ΓΓ二配合經該成圓單元5揉合成圓筒狀的該金 =時二進入由該等推爪611配合形成-適合圓筒狀 634恰可由後方推送該金屬片材2〇往 位置，為配合產量的提升，可以讓該等推 @金屬片材2〇揉合成圓筒狀後並進入由該等推爪 配合形成-適合圓筒狀的空間時，該等推爪63 =金屬片㈣，如此，將不會產生該金屬片材2。揉合： 園筒狀時仍等待該等推爪634對其進行推送之間置情形成( t後’再利用該控料元9調整該推進爪舰馬達74、該 ^輪：服馬達73與該輸送伺服馬達82之轉速，以配合該 爪單π 6推达該金屬片材2〇速度而將該金屬片材汕焊 接成型並輪送至下一製程。 #相反地，當要降低該電阻焊接裝i 之產量時，僅 需重複上段所述之調整步驟進行調整，差別在於該控制單 几9是調降該等飼服馬彡42、44、612、64、65、73、74、 !364336 82轉速。 藉由該控制單元9與該等伺服馬達42、44、6丨2、μ ' 65、73、74、82之談置，當要改變該電阻焊接裝置ι〇〇之 產量時’僅需經由該控制單元9控制該等伺服馬達& 44 、612、64、65、73、74、82進行調整，較習知調整該皮帶 135的方式更容易調整，且在調整該等推爪634之位置時， 相較於習知受限於該皮冑138之節距的情況，該等推爪飼 服馬達632可以依需求而受該控制單元9控制進行更小幅 度之調整’調整之解析度最小可$ 〇 lmm，也就是該等推 爪634調整時之位移可小於習知該皮帶135調整時之解析 度，使得該電阻焊接裝X 100每分鐘可以成型_個罐體 ’因而具有提升產能之功效，故確實能達到本發明之功效 惟以上所述者，僅為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，即大凡依本發明中請專利 範圍及發明說明内容所作之簡單的等效變化與修飾，皆仍 屬本發明專利涵蓋之範圍内。 【圖式簡單說明】 圖1是一立體圖，說明現有一種製罐機； 圖2是一立體示意圖，說明該製罐機之二推爪模組之 組成； 圖3是一立體圖，說明本發明電阻焊接裝置之一較佳 實施例； 圖4是一左側視圖，說明一推爪單元之組成； 9 1364336 圖5是一部份俯視圖，說明二進料爪推送一金屬片材 時之情形； 圖6是一前視圖，說明一焊接單元之組成；及 圖7是一後視圖，說明一焊輪伺服馬達與一推進伺服 馬達之配置關係。I =:::: _ row _, two: ^ ^ Because the adjustment of the speed of the claws 631 is matched with the rounding unit 5, the cylindrical shape of the gold = two times into the The claws 611 are formed in a suitable manner - the cylindrical shape 634 can be pushed from the rear to the position of the metal sheet 2, and the metal sheet 2 can be combined into a cylindrical shape to enter the cylindrical shape. When the push claws are combined to form a space suitable for the cylindrical shape, the push claws 63 = the metal piece (4), and thus, the metal sheet 2 will not be produced. Coupling: When the cylinder is in the shape of a cylinder, it is still waiting for the pushers 634 to push between them to form a situation (after the 'reuse of the control element 9 to adjust the propelling claw motor 74, the ^ wheel: the motor 73 and The rotation speed of the servo motor 82 is conveyed to match the speed of the metal sheet 2 配合 6 to weld the metal sheet 并 and to be transferred to the next process. # Conversely, when the resistance is to be lowered When welding the output of the assembly i, it is only necessary to repeat the adjustment steps described in the previous paragraph to adjust. The difference is that the control unit 9 is to lower the feeding horses 42, 44, 612, 64, 65, 73, 74, ! 364336 82 rpm. By the control unit 9 and the servo motors 42, 44, 6 丨 2, μ ' 65, 73, 74, 82, when the output of the resistance welding device ι〇〇 is to be changed' It is only necessary to control the servo motors & 44, 612, 64, 65, 73, 74, 82 via the control unit 9 for adjustment, which is easier to adjust than the conventional method of adjusting the belt 135, and the claws are adjusted. At the position of 634, the claw-feeding motor 632 can be compared to the conventional limitation of the pitch of the skin 138 Adjusted by the control unit 9 for smaller adjustments as required. The resolution of the adjustment can be as small as 〇lmm, that is, the displacement of the claws 634 can be adjusted less than the resolution of the conventional belt 135 adjustment. The electric resistance welding device X 100 can form _ a can body every minute and thus has the effect of improving the productivity, so that the effect of the present invention can be achieved, but the above is only the preferred embodiment of the present invention. The scope of the present invention is defined by the scope of the invention, and the simple equivalent changes and modifications made by the invention in the scope of the invention and the description of the invention are still within the scope of the invention. 1 is a perspective view showing a conventional can making machine; FIG. 2 is a perspective view showing the composition of the second claw module of the can making machine; FIG. 3 is a perspective view showing a preferred embodiment of the electric resistance welding device of the present invention. Figure 4 is a left side view showing the composition of a pawl unit; 9 1364336 Figure 5 is a partial plan view showing the situation when two feed claws push a metal sheet; Front view illustrating a welding unit of the composition; and FIG. 7 is a rear view illustrating a positional relationship between the welding wheel servomotor and a servomotor of propulsion.
10 1364336 【主要元件符號說明】 100… …·電阻焊接裝置 632… •…推爪伺服馬達 20….· •…金屬片材 633… •…皮帶 21 -··· •…罐體 634… …·推爪 3…… •…機架 64…… •…爪座伺服馬達 4…… …·進料單元 65…， •…調整伺服馬達 ....rf\ 7 ...... 4 1..... 進料爪 坪按早兀 42…·. •…進料伺服馬達 71…… …·焊輪 43•… •…滾軸 72…… •…推進爪 44·.··· •…送料伺服馬達 73…… •…焊輪伺服馬達 5…… •…成圓單元 74…… •…推進伺服馬達 6…… …·推爪單元 8 ....... •…輸送單元 61 …:· •…底座 81…… …·滑執 62••… •…推爪座 82…… …·輸送伺服馬達 63•… •…推爪模組 83…… •…滾輪模組 631… …·推爪帶 9 ....... …·控制單元 1110 1364336 [Description of main component symbols] 100... Resistance welding device 632... • Pusher servo motor 20....·... Metal sheet 633... • Belt 21 -··· •...Canister 634... Pusher 3... •... Rack 64... •... Claw servo motor 4... ...·feed unit 65..., •...Adjust servo motor....rf\ 7 ...... 4 1. .... Feeding claws are pressed as early as 42...·.....Feeding servo motor 71...... ...·Welding wheel 43•... •...Roller 72... •...Protruding claws 44·.··· •... Feed servo motor 73... •...Welding wheel servo motor 5... •...round unit 74... •...propulsion servo motor 6.........putting claw unit 8..................... conveying unit 61 ... :· •...Base 81...... ...·Slipper 62••... •...Pushing lever seat 82.........·Transport servo motor 63•...•...Push claw module 83...•...Roller module 631... Pusher belt 9 ............. control unit 11