CN2776614Y - Spot welding machine head - Google Patents
Spot welding machine head Download PDFInfo
- Publication number
- CN2776614Y CN2776614Y CN 200420103360 CN200420103360U CN2776614Y CN 2776614 Y CN2776614 Y CN 2776614Y CN 200420103360 CN200420103360 CN 200420103360 CN 200420103360 U CN200420103360 U CN 200420103360U CN 2776614 Y CN2776614 Y CN 2776614Y
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- pressure
- spot welding
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- welding
- mash welder
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Abstract
The utility model relates to a spot welding machine head which comprises a pressure device which is arranged on a machine frame, a drive device which is connected with the pressure device, a spot welding device which is arranged on the machine frame, and a trigger switch, wherein the pressure device comprises a casing, a fastener and a pressure elastic component. The drive device can drive the pressure device, and the spot welding device stops moving after the spot welding device is driven to move downwards to a position of a workpiece. The pressure device moves downwards continuously, and the pressure elastic component can provide definite elastic force which is welding pressure to the spot welding device. The relative displacement generated by the spot welding device and the pressure device can trigger the trigger switch. Thereby, the pressure born by the workpiece is only the elastic force which is provided by the pressure elastic component and the workpiece can not be influenced by operating force. The pressure repeatability is good, and precise and stable pressure output can be obtained. In addition, whether a spot welding electrode contacts the workpiece or not can be known, empty welding can be avoided and the spot welding electrode and the workpiece can be protected.
Description
Technical field
The utility model relates to micro spot welder, particularly the frame head apparatus of micro spot welder.
Background technology
Existing mash welder generally includes mash welder head and mash welder circuit arrangement.As shown in Figure 1, be existing mash welder head schematic diagram, it comprise frame 1, slidably be installed in slide bar 2 on the described frame, be installed in the terminal clamp 3 of described slide bar lower end, be clamped in the electrode 4 on the terminal clamp, electrod driving device 5.This mash welder produces big electric current by described mash welder circuit arrangement, be transported on the electrode of the terminal clamp that is clamped in the mash welder head, head normally drives described slide bar by drive unit with manual, pneumatic or electronic mode and moves down, when described electrode arrives workpiece surface, described slide bar stops to lower slider, thus the beginning welding work pieces.Yet there is many-sided shortcoming in the mash welder of this structure, 1, no matter be that manual, pneumatic or electronic mode drives described slide bar, and the welding pressure of electrode pair surface of the work all can be subjected to the influence of steering force, easily defective work piece and electrode.2, the poor repeatability of steering force,, so the welding pressure of each welding is difficult for being consistent, welding stability is poor.3, do not have protection devices such as protection switch, make welding operation dangerous.
The utility model content
The technical problems to be solved in the utility model is; provide a kind of when spot welding is worked, can to workpiece apply the welding pressure that is not subjected to that steering force influences, stable precision and welding pressure good reproducibility, can protect the mash welder head of spot-wedling electrode and workpiece.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of mash welder head is provided, comprise the pressure apparatus that can slide up and down the welding pressure rack-mounted, that setting is provided, fixedly connected and drive the drive unit that described pressure apparatus slides up and down, be installed on the described frame and drive can slide up and down spot welding device and the welding trigger switch that between described pressure apparatus and described spot welding device, is provided with by described pressure apparatus; Has the relative motion displacement that triggers described welding trigger switch between described spot welding device and the described pressure apparatus.
The described pressure apparatus of above-mentioned mash welder head comprises housing, is located at the compressing member in the described housing and is provided with the pressure elastic component between described compressing member and described spot welding device.Described compressing member is adjustable compressing member, comprises pressure adjustment screw rod; Adjust pressure that screw rod drives, the described pressure elastic component of compression by described pressure and adjust nut; And the compact heap that compresses described spot welding device; Described pressure elastic component is set in described pressure and adjusts on the screw rod, and an end of described pressure elastic component is connected with described pressure adjusting nut, and the other end is connected with described compact heap.
The described spot welding device of above-mentioned mash welder head comprises that the pressure activated of being pushed down by described compact heap connects piece, being slidingly installed on described frame and connecting piece by described pressure activated by linear bearing drives the slide bar that slides up and down in described frame, and the terminal clamp that is fixed on the clamping electric spot welding electrode of described slide bar lower end.
The described pressure apparatus of above-mentioned mash welder head also comprises and is arranged on the balance portion that described pressure activated connects piece below, and described balance portion comprises the adjustment screw rod, and be located at described adjustment screw rod top, compress the balance elastic component that described pressure activated connects piece.
The described pressure activated of above-mentioned mash welder head connects the housing that piece passes described pressure apparatus, and is provided with two limited rollers at its end, and described frame is provided with to be slidingly matched with described limited roller and prevents that described pressure activated from connecting the guiding slide bar of piece rotation.
The described drive unit of above-mentioned mash welder head comprises that the driving of fixedlying connected with described pressure apparatus connects piece, and produces driving force and be applied to described driving and connect power source on the piece.Described power source for the pneumatic or electric force application device that connects piece by cylinder or the described driving of motor-driven or for by handle cable wire spur described driving connect piece manually or pin step on force application apparatus.
The described drive unit of above-mentioned mash welder head also can be installed the back-moving spring that makes described driving connect block reset.
The described pressure apparatus of above-mentioned mash welder head also is provided with described pressure adjustment screw rod elastic pressure that be connected, demonstration pressure elastic component and promptly sets the pressure-display device of welding pressure; Described pressure-display device is mechanical display dial or electronic display unit.
The described drive unit of above-mentioned mash welder head also be provided be installed on the described frame, can adjust the upper and lower spacing adjustment screw that described driving connects the piece stroke.
The described mash welder head of above-mentioned mash welder head also is provided with and connects piece in described driving and move down with frame and produce the protection switch that the signal that allows welding trigger switch signalling start-up point welding machine welding is sent in certain relative displacement.
Described welding trigger switch of above-mentioned mash welder head and protection switch are mechanical contact-type travel switch or electronic type noncontacting switch.
Compared with prior art, the drive unit driving pressure device of mash welder head of the present utility model, after driving spot welding device and being moved down into spot-wedling electrode and pushing down the position of workpiece, spot welding device stops to move, and pressure apparatus continues to move down and provided for spot welding device by pressure apparatus the welding pressure of setting, and the relative displacement that is produced by spot welding device and pressure apparatus triggers described welding trigger switch, thereby the elastic force that the welding pressure that workpiece is subjected to provides for the pressure elastic component, and be not subjected to the influence of steering force, and the good reproducibility of welding pressure can access the welding pressure of stable precision.In addition; because the ingenious setting of welding trigger switch; make only after spot-wedling electrode is pushed down workpiece; when pressure apparatus and spot welding device produce certain relative displacement; the welding trigger switch is triggered to be welded; thereby can touch workpiece reliably with setting pressure by the guarantee point welding electrode, prevent empty weldering, protection spot-wedling electrode and workpiece, welding quality is consistent to be stablized.
In addition; the protection switch that the mash welder head is provided with; make to drive connect piece move down produce certain relative displacement with frame after; protection switch just sends signal and allows welding trigger switch signalling start-up point welding machine welding; thereby prevented when drive unit is failure to actuate; cause relative displacement that spot welding device and pressure apparatus produce and false triggering welding trigger switch and the sky welding that causes by external force front contact welder, better protection spot-wedling electrode and workpiece.
Description of drawings
Below in conjunction with drawings and Examples the utility model mash welder head is described further, in the accompanying drawing:
Fig. 1 is the schematic diagram of existing mash welder head.
Fig. 2 is the schematic diagram of mash welder head of the present utility model.
Fig. 3 is the cross-sectional schematic that connects piece omission frame according to the pressure activated of A-A hatching mash welder head among Fig. 2.
Fig. 4 is that the mode of butt welding is welded schematic diagram.
Fig. 5 adopts single face bipolar electrode mode to weld schematic diagram.
The specific embodiment
Below in conjunction with accompanying drawing the utility model mash welder head is described in further detail.As shown in Figure 2, it is a specific embodiment of mash welder head of the present utility model, comprise and to slide up and down the pressure apparatus 20 that is installed on the frame 10, the drive unit 30 of fixedlying connected with described pressure apparatus 20, be installed on the described frame 10 and drive the spot welding device 40 that can slide up and down by described pressure apparatus 20, and the welding trigger switch 50 of setting between described pressure apparatus 20 and described spot welding device 40.When described welding trigger switch 50 triggers, the circuit arrangement part (figure does not show) of start-up point welding machine, for the spot-wedling electrode 45 that is installed on the spot welding device 40 provides big electric current, starting point welder does.
Described drive unit 30 comprises that the driving of fixedlying connected with described pressure apparatus 20 connects piece 31, and produces driving force and be applied to described driving and connect power source on the piece 31.Described pressure apparatus 20 comprises housing 21, is located at the compressing member 22 in the described housing 21 and is provided with pressure elastic component 23 between described compressing member 22 and described spot welding device 40.Described spot welding device 40 comprises that the pressure activated that is compressed by described pressure elastic component 23 connects piece 41, being slidingly installed on described frame 10 and connecting piece 41 by described pressure activated by linear bearing 42 drives the slide bar 43 that slides up and down in described frame 10, and the terminal clamp 44 that is fixed on the clamping electric spot welding electrode 45 of described slide bar 43 lower ends.
In the present embodiment, the housing 21 of described pressure apparatus 20 is the cylinder of the hollow of both ends open, certainly is other geometries (for example square column types).Described housing 21 is installed on the described frame 10 by sliding sleeve 24, and can slide up and down on described frame 10.Described compressing member 22 comprises pressure adjustment screw rod 221 for being arranged on adjustable compressing member of described housing 21 upper ends, adjusts the pressure adjustment nut 222 that screw rod 221 drives by described pressure, and compresses the compact heap 223 that described pressure activated connects piece 41.Described pressure elastic component 23 can provide the element of linear elasticity power for spring, plastic cement elastic component etc.Thereby, can adjust screw rod 221 by rotational pressure and drive described pressure adjustment nut 222, adjust the decrement of described pressure elastic component 23, described pressure activated is connected the setting welding pressure that piece 41 provides stable precision.For the pressure that shows that described pressure elastic component 23 produces, can adjust on the screw rod 221 at described pressure pressure-display device 25 is set, adjust the decrement that the rotating cycle of screw rod 221 comes gaging pressure elastic component 23 by gaging pressure, measure welding pressure thereby convert with hooke theorem.In the present embodiment, described pressure-display device 25 comprises angular displacement sensor 251, first gear 252 and second gear 253.Described first gear 252 is installed in described pressure and adjusts on the screw rod 221, and adjust screw rod 221 drives by described pressure and rotate, driving described second gear 253 by described first gear 252 again rotates, thereby change the resistance of angular displacement sensor 251, demonstrate numerical value by conversions such as electronic displays again, thereby reach the effect that shows pressure.Understandable, described pressure-display device 25 also can be mechanical display dial, for example the display dial structure of micrometer.
As shown in Figure 3, connect the end that piece 41 passes the housing 21 of described pressure apparatus 20 in described pressure activated and be provided with two limited rollers 27, and described frame 10 is provided with the guiding slide bar 28 that matches with described limited roller 27.Described limited roller 27 rolls on described guiding slide bar 28, thereby prevents that described pressure activated from connecting piece 41 rotation, has guaranteed that described spot welding device 40 is in movement in vertical direction.
The driving of described drive unit 30 connects piece 31 fixedlys connected with described housing 21 by modes such as screw, chucks, and can slide on described guiding slide bar 28; Described power source for the pneumatic force application apparatus that connects piece 31 by the described driving of cylinder 321 pressure-driven or for by handle the described driving of cable wire 322 pullings connect piece 31 manually or pin step on force application apparatus.Described drive unit 30 also comprises makes described driving connect the back-moving spring 33 that piece 31 resets.
When needs weld workpiece 60, spur described manipulation cable wire or start pneumatic force application apparatus, make described driving connect piece 31 and move down along described guiding slide bar 28; The housing 21 of described pressure apparatus 20 connects in described driving under the drive of piece 31 and moves down equally; Described pressure activated connects piece 41 under the ordering about of described compact heap 223, move down, thereby the slide bar 43 that drives spot welding device 40 moves down, and drives the terminal clamp 44 and the spot-wedling electrode 45 that are fixed on described slide bar 43 belows simultaneously and moves down.When described spot-wedling electrode 45 touches workpiece 60 upper surfaces, described spot welding device 40 stops to move, and described pressure apparatus 20 continues to move down and provided for described spot welding device 40 by described pressure elastic component 23 the elasticity weld force of setting, and connect the relative displacement that the housing 21 of piece 41 and described pressure apparatus 20 produces and trigger described welding trigger switch 50 by the pressure activated of described spot welding device 40, the circuit arrangement of start-up point welding machine produces big electric current, and be transported on the spot-wedling electrode 45, workpiece 60 is welded.Thereby the elastic force that the welding pressure that workpiece 60 is subjected to only provides for pressure elastic component 23, and be not subjected to the influence of steering force, and the good reproducibility of pressure, can access the pressure output of stable precision.In addition; because the setting of welding trigger switch 50; when thereby only the pressure apparatus 20 that makes after spot-wedling electrode 45 arrives workpiece 60 produces certain relative displacement with spot welding device 40; welding trigger switch 50 is triggered; thereby can whether touch workpiece 60 by guarantee point welding electrode 45, prevent empty weldering, protection spot-wedling electrode 45 and workpiece 60.
For the needs according to different workpieces 60, described drive unit 30 is also installed to be provided with and can be adjusted the upper and lower spacing adjustment screw 70 that described driving connects piece 31 strokes.Described in the present embodiment spacing adjustment screw 70 up and down is installed in the top of described frame 10, and by adjusting the described upper-lower position of spacing adjustment screw 70 up and down, making described driving connect piece 31 can only move in the position that limits, and has improved welding job efficient.Certainly, described upper and lower spacing adjustment screw 70 can adopt other existing structures or be installed in other position, as long as can realize that described driving is connected moving up and down of piece 31 to be carried out spacing.
In order to have prevented when drive unit is failure to actuate; cause relative displacement that spot welding device and pressure apparatus 20 produce and false triggering welding trigger switch 50 and the sky welding that causes by external force front contact welder 40; better protection spot-wedling electrode and workpiece; described mash welder head is provided with protection switch 80; when drive to connect piece 31 move down produce certain relative displacement with frame 10 after, protection switch 80 just sends signal and allows to weld the signal enabling mash welder that trigger switch 50 sends and weld.In the present embodiment; described protection switch 80 is arranged on the below that described upper limit is adjusted screw; and move downward together along with described driving connects piece 31, when described driving connects the triggering stroke that distance that piece 31 moves downward surpasses described protection switch 80, can trigger described protection switch 80.Certainly, described protection switch 80 also can be arranged on other position, as long as after described drive unit 30 or the pressure apparatus 20 that is attached thereto move down certain distance, can trigger described protection switch 80 and get final product.
The electric spot welding machine head is performed such welding: a kind ofly weld for the mode of butt welding, see Fig. 4, be that one of electric spot welding power supply 90 outputs terminate on the terminal clamp 44, another output is received on the workpiece 60 by workbench, spot-wedling electrode 45 is pushed down workpiece 60 with setting pressure when welding, terminal clamp 44, spot-wedling electrode 45, workpiece 60 and workbench form electric loop, and after the welding trigger switch triggers, thereby the big electric current of electric spot welding power supply 90 outputs is realized spot-welded on by above-mentioned electric loop; Another kind of for adopting single face bipolar electrode mode to weld, see Fig. 5, the two ends that are electric spot welding power supply 90 outputs all are connected on the terminal clamp 44, terminal clamp 44 is clamped two spot-wedling electrodes 45 respectively, two spot-wedling electrodes, 45 tops insulation and respectively with the two ends energising of electric spot welding power output end, when welding spot-wedling electrode 45 push down workpiece with setting pressure, two spot-wedling electrodes and workpiece 60 form electric loop, after the welding trigger switch triggers, thereby the big electric current of electric spot welding power supply 90 outputs is realized spot-welded on by above-mentioned electric loop.
Claims (10)
1, a kind of mash welder head, it is characterized in that: comprise the pressure apparatus that can slide up and down the welding pressure rack-mounted, that setting is provided, fixedly connected and drive the drive unit that described pressure apparatus slides up and down, be installed on the described frame and drive can slide up and down spot welding device and the welding trigger switch that between described pressure apparatus and described spot welding device, is provided with by described pressure apparatus; Has the relative motion displacement that triggers described welding trigger switch between described spot welding device and the described pressure apparatus.
2, mash welder head according to claim 1 is characterized in that: described pressure apparatus comprises housing, is located at the compressing member in the described housing and is provided with the pressure elastic component between described compressing member and described spot welding device; Described compressing member is adjustable compressing member, comprises pressure adjustment screw rod, adjust pressure that screw rod drives, the described pressure elastic component of compression by described pressure and adjust nut, and the compact heap that compresses described spot welding device; Described pressure elastic component is set in described pressure and adjusts on the screw rod, and an end of described pressure elastic component is connected with described pressure adjusting nut, and the other end is connected with described compact heap.
3, mash welder head according to claim 2, it is characterized in that: described spot welding device comprises that the pressure activated of being pushed down by described compact heap connects piece, and being slidingly installed by linear bearing connects the slide bar that piece is fixedlyed connected on described frame and with described pressure activated; And the terminal clamp that is fixed on the clamping electric spot welding electrode of described slide bar lower end.
4, mash welder head according to claim 3, it is characterized in that: described pressure apparatus also comprises and is arranged on the balance portion that described pressure activated connects piece below, described balance portion comprises the adjustment screw rod, and be located at described adjustment screw rod top, compress the balance elastic component that described pressure activated connects piece.
5, according to claim 3 or 4 described mash welder heads, it is characterized in that: described pressure activated connects the housing that piece passes described pressure apparatus, and be provided with two limited rollers at its end, and described frame is provided with the guiding slide bar that is slidingly matched with described limited roller.
6, mash welder head according to claim 1 is characterized in that: described drive unit comprises that the driving of fixedlying connected with described pressure apparatus connects piece, and produces driving force and be applied to described driving and connect power source on the piece; Described power source is for connecting the pneumatic or electric force application device of piece by cylinder or the described driving of motor-driven; Perhaps for by handle cable wire spur described driving connect piece manually or pin step on force application apparatus.
7, mash welder head according to claim 2 is characterized in that: described pressure apparatus also is provided with described pressure adjustment screw rod elastic pressure that be connected, demonstration pressure elastic component and promptly sets the pressure-display device of welding pressure; Described pressure-display device is mechanical display dial or electronic display unit.
8, mash welder head according to claim 6 is characterized in that: described drive unit also be provided be installed on the described frame, can adjust the upper and lower spacing adjustment screw that described driving connects the piece stroke.
9, mash welder head according to claim 6 is characterized in that: described mash welder head also is provided with and connects piece in described driving and move down with frame and produce the protection switch that the signal that allows welding trigger switch signalling start-up point welding machine welding is sent in certain relative displacement.
10, mash welder head according to claim 9 is characterized in that: described welding trigger switch and protection switch are mechanical contact-type travel switch or electronic type noncontacting switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420103360 CN2776614Y (en) | 2004-12-21 | 2004-12-21 | Spot welding machine head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420103360 CN2776614Y (en) | 2004-12-21 | 2004-12-21 | Spot welding machine head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2776614Y true CN2776614Y (en) | 2006-05-03 |
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ID=36744000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420103360 Expired - Fee Related CN2776614Y (en) | 2004-12-21 | 2004-12-21 | Spot welding machine head |
Country Status (1)
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| CN (1) | CN2776614Y (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102225498A (en) * | 2011-06-20 | 2011-10-26 | 珠海精易焊接设备有限公司 | Nose of double buffering electronic spot welder |
| CN102350744A (en) * | 2011-08-11 | 2012-02-15 | 汪远银 | Fixture for automatic slicing type CT machine |
| CN102357726A (en) * | 2011-09-29 | 2012-02-22 | 台州雅晶电子有限公司 | Point welding machine |
| CN103464885A (en) * | 2013-09-13 | 2013-12-25 | 江门市保值久机电有限公司 | Novel arc welding machine |
| CN104722878A (en) * | 2015-03-27 | 2015-06-24 | 常州铭赛机器人科技股份有限公司 | Automatic spot welding machine head |
| CN104741754A (en) * | 2013-12-27 | 2015-07-01 | 镇江市润华无线电专用设备制造有限责任公司 | Double-head spot welding machine head |
| CN105583511A (en) * | 2014-11-06 | 2016-05-18 | 发那科株式会社 | Spot Welding System, Method And Computer Program Capable Of Making Pressurizing Force Applied To Object To Be Pressed To Be Constant |
| CN108015402A (en) * | 2017-12-29 | 2018-05-11 | 深圳市百耐信科技有限公司 | A kind of welding head structure and welding head device |
| CN110280882A (en) * | 2019-07-23 | 2019-09-27 | 蒋伟锋 | Battery set electrode weld monitor adjusts device |
| CN113814545A (en) * | 2021-09-18 | 2021-12-21 | 广州微点焊设备有限公司 | Micro-resistance welding spot welding machine head and self-detection method for preset electrode force thereof |
| CN114248426A (en) * | 2022-01-04 | 2022-03-29 | 深圳市领志光机电自动化系统有限公司 | Film pasting device capable of measuring pasting force without segment difference |
| CN117415546A (en) * | 2023-11-20 | 2024-01-19 | 广东航威金属制品有限公司 | Multi-station spot welder |
-
2004
- 2004-12-21 CN CN 200420103360 patent/CN2776614Y/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102225498A (en) * | 2011-06-20 | 2011-10-26 | 珠海精易焊接设备有限公司 | Nose of double buffering electronic spot welder |
| CN102350744A (en) * | 2011-08-11 | 2012-02-15 | 汪远银 | Fixture for automatic slicing type CT machine |
| CN102357726A (en) * | 2011-09-29 | 2012-02-22 | 台州雅晶电子有限公司 | Point welding machine |
| CN103464885A (en) * | 2013-09-13 | 2013-12-25 | 江门市保值久机电有限公司 | Novel arc welding machine |
| CN103464885B (en) * | 2013-09-13 | 2015-08-19 | 江门市保值久机电有限公司 | A kind of Novel electric welding gun |
| CN104741754A (en) * | 2013-12-27 | 2015-07-01 | 镇江市润华无线电专用设备制造有限责任公司 | Double-head spot welding machine head |
| CN105583511B (en) * | 2014-11-06 | 2018-08-24 | 发那科株式会社 | The method of spot welding system and the stressed variable quantity in control spot-welding gun |
| CN105583511A (en) * | 2014-11-06 | 2016-05-18 | 发那科株式会社 | Spot Welding System, Method And Computer Program Capable Of Making Pressurizing Force Applied To Object To Be Pressed To Be Constant |
| US9999937B2 (en) | 2014-11-06 | 2018-06-19 | Fanuc Corporation | Spot welding system, method and computer program capable of making pressurizing force applied to object to be pressed to be constant |
| CN104722878A (en) * | 2015-03-27 | 2015-06-24 | 常州铭赛机器人科技股份有限公司 | Automatic spot welding machine head |
| CN108015402A (en) * | 2017-12-29 | 2018-05-11 | 深圳市百耐信科技有限公司 | A kind of welding head structure and welding head device |
| CN110280882A (en) * | 2019-07-23 | 2019-09-27 | 蒋伟锋 | Battery set electrode weld monitor adjusts device |
| CN113814545A (en) * | 2021-09-18 | 2021-12-21 | 广州微点焊设备有限公司 | Micro-resistance welding spot welding machine head and self-detection method for preset electrode force thereof |
| CN113814545B (en) * | 2021-09-18 | 2023-03-03 | 广州微点焊设备有限公司 | Micro-resistance welding spot welding machine head and self-detection method for preset electrode force thereof |
| CN114248426A (en) * | 2022-01-04 | 2022-03-29 | 深圳市领志光机电自动化系统有限公司 | Film pasting device capable of measuring pasting force without segment difference |
| CN117415546A (en) * | 2023-11-20 | 2024-01-19 | 广东航威金属制品有限公司 | Multi-station spot welder |
| CN117415546B (en) * | 2023-11-20 | 2024-04-16 | 广东航威金属制品有限公司 | Multi-station spot welder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060503 Termination date: 20121221 |