CN104493352A - Double-sided automatic spot welding machine control device and method - Google Patents
Double-sided automatic spot welding machine control device and method Download PDFInfo
- Publication number
- CN104493352A CN104493352A CN201410790204.XA CN201410790204A CN104493352A CN 104493352 A CN104493352 A CN 104493352A CN 201410790204 A CN201410790204 A CN 201410790204A CN 104493352 A CN104493352 A CN 104493352A
- Authority
- CN
- China
- Prior art keywords
- spot welding
- welding head
- screw mandrel
- double
- battery core
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/10—Spot welding; Stitch welding
- B23K11/11—Spot welding
- B23K11/115—Spot welding by means of two electrodes placed opposite one another on both sides of the welded parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/30—Features relating to electrodes
- B23K11/31—Electrode holders and actuating devices therefor
- B23K11/311—Electrode holders and actuating devices therefor the actuating device comprising an electric motor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
Abstract
The invention provides a double-sided automatic spot welding machine control device. A double-sided automatic spot welding machine comprises a left screw rod, a right screw rod and a jig used for assembling a cell. A left servo motor and a right servo motor are connected with the left and right screw rods respectively, a left spot welding head and a right spot welding head are connected on the left and right screw rods respectively, a left electrode bar and a right electrode bar are arranged on the left and right spot welding heads respectively, a level conversion device is connected with a PLC (programmable logic controller), the left and right spot welding heads are both connected with the level conversion device, and the PLC is further connected with the left and right servo motors; a contact position is arranged on the surface of the cell. The invention further provides a double-sided automatic spot welding machine control method. After the spot welding heads on both sides reach the contact position, the electrode bars on two sides contact with the cell, and then the spot welding heads reach the spot welding position, so that the cell cannot move and a nickel plate cannot be misplaced. By the device, spot welding quality is improved, the servo motors can be set to be in full speed operation during movement before contact with the cell due to the contact position, and thus spot welding efficiency is improved as well.
Description
Technical field
The present invention relates to a kind of double-sided automatic spot welding machine control device and method, be used in single-unit battery core and connect in the process of battery pack by nickel sheet, nickel sheet is welded on the connection in series-parallel that battery core surface realizes battery, and then composition battery pack, belong to automatic control technology field.
Background technology
The structure of double-sided automatic spot welding machine as shown in Figure 1, comprise left screw mandrel 2 and right screw mandrel 9, left servomotor 1, right servomotor 8 are connected with left and right screw mandrel respectively, left spot welding head 3 and right spot welding head 7 are connected on left and right screw mandrel, left and right spot welding head is equipped with respectively left electrode bar 4 and right electrode bar 6, installs the tool 5 of battery core 10 between left and right electrode bar.
Connect in the process of battery pack in single-unit battery core by nickel sheet, need nickel sheet to be welded on battery core surface, the flow process of traditional double-sided automatic spot welding machine spot welding is: put into tool, and arrive specified point, point of arrival welding position, spot welding, completes.In above-mentioned flow process, because the reason such as machining, installation can make mash welder the right and left electrode bar different to the distance on battery core surface, when this can cause both sides electrode bar different, compress battery core.The making of tool is not the firm battery core of card, battery core can be caused to move, and be placed on the nickel sheet on battery core surface, can misplace thereupon yet, and then affect the quality of spot welding so compress battery core when both sides electrode bar is different.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of battery core that can prevent and moves and the double-sided automatic spot welding machine control device of nickel sheet dislocation and method, to improve the quality of spot welding.
In order to solve the problems of the technologies described above, technical scheme of the present invention is to provide a kind of double-sided automatic spot welding machine control device, double-sided automatic spot welding machine comprises left screw mandrel, right screw mandrel and the tool for assembling battery core, left servomotor, right servomotor respectively with left screw mandrel, right screw mandrel connects, left spot welding head, right spot welding head is connected to left screw mandrel, on right screw mandrel, left spot welding head, right spot welding head is respectively equipped with left electrode bar, right electrode bar, it is characterized in that: comprise PLC, level converter is connected with PLC, described left spot welding head, right spot welding head all connects level converter, PLC also with left servomotor, right servomotor connects, described battery core surface is provided with contact position.
Preferably, described left spot welding head, right spot welding head all connect described level converter by holding wire.
Present invention also offers a kind of double-sided automatic spot welding machine control method, it is characterized in that: adopt above-mentioned a kind of double-sided automatic spot welding machine control device, the method is made up of following 4 steps:
Step 1: the tool assembling battery core is put between left electrode bar and right electrode bar;
Step 2: make tool reach desired location;
Step 3: rotated by left servomotor, right servomotor, left screw mandrel, right screw mandrel is driven to rotate, make to be connected to the left spot welding head on left screw mandrel, right screw mandrel, right spot welding head generation straight-line displacement, when left spot welding head, right spot welding head touching battery core surface contact position, left electrode bar on left spot welding head, right spot welding head, right electrode bar are respectively by battery core surface conducting, and Continuity signal transfers to PLC process by level converter;
The level variable signal that PLC incoming level conversion equipment transports, and judge left spot welding head according to this signal, whether right spot welding head arrive battery core surface contact position; When one side spot welding head arrives contact position, wait for that another side spot welding arrives contact position, until left spot welding head, right spot welding head all arrive contact position;
Step 4: make left spot welding head, right spot welding head moves to a welding position with identical work speed;
Step 5: carry out spot welding.
Method provided by the invention is under automatic service condition before point of arrival welding position, fed back by electric circuit inspection and first arrive contact position, detect that both sides spot welding head all arrives contact position, now both sides extremely rod all contact battery core, at this condition point of arrival welding position again, such battery core would not produce movement, and nickel sheet also can not produce and misplace.
Device provided by the invention overcomes the deficiencies in the prior art, prevents the movement of battery core and the dislocation of nickel sheet, improves point quality; Owing to contacting the appearance of position, the motion before contact battery core can arrange servomotor full speed running, thus also improves spot welding efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of double-sided automatic spot welding machine;
Fig. 2 is double-sided automatic spot welding machine control device schematic diagram provided by the invention;
Fig. 3 is double-sided automatic spot welding machine control method schematic diagram provided by the invention.
Detailed description of the invention
For making the present invention become apparent, hereby with a preferred embodiment, and accompanying drawing is coordinated to be described in detail below.
The movement of battery core, the dislocation of nickel sheet are because both sides electrode is held in both hands surperficial different from the distance on battery core surface.When motor speed is identical, the time arriving battery core surface is different and produce.Controlling motor speed, to make electrode bar arrive time of motor identical, is need trial many times and inaccuracy.The control mode of stitch welding machine is position control mode, has a welding position, standby position etc., and therefore arrange the position on a contact battery core surface, before point of arrival welding position, two electrode bars just can realize arriving battery core surface simultaneously.Treat that both sides electrode bar all contacts with battery core, then carry out compression battery core, battery core would not produce movement, and nickel sheet also can not produce and misplace.
Fig. 2 is double-sided automatic spot welding machine control device schematic diagram provided by the invention, and described double-sided automatic spot welding machine control device comprises holding wire 11, level converter 12, PLC13 etc., and arranges contact position on battery core surface.By left spot welding head 3, right spot welding head 7 connection signal line 11, and the signal carried by holding wire 11 is connected with PLC13 through level converter 12, and PLC13 exports the signal controlling servomotor, realizes the feedback of signal in automatic spot process.
Composition graphs 3, its control method is: rotated by left servomotor 1, right servomotor 8, drive left screw mandrel 2, right screw mandrel 9 rotates, make to be connected to the left spot welding head 3 on left screw mandrel 2, right screw mandrel 9, straight-line displacement occurs right spot welding head 7, when left spot welding head 3, right spot welding head 7 touch battery core surface namely to contact time, left electrode bar 4 on left spot welding head 3, right spot welding head 7, right electrode bar 6 are respectively by battery core surface conducting, Continuity signal transfers to PLC13 process by level converter 12, and PLC13 controls servomotor by processing signals and rotates or stop.
In automatic spot process, PLC13 can receive level variable signal, and whether arrives battery core surface according to signal judging point soldering tip and namely contact position, controls left and right servomotor forward-reverse, forms FEEDBACK CONTROL.When left spot welding head 3 or right spot welding head 7 arrive contact position, wait for that the right spot welding head of another side 7 or left spot welding head 3 arrive contact position on one side, after treating that the left and right spot welding head in both sides all arrives contact position, then move to a welding position with identical work speed, carry out spot welding.
The spot welding flow process of new stitch welding machine becomes: put into tool 5, and tool 5 reaches assigned address, and left and right spot welding head all arrives contact position, and left and right spot welding head is point of arrival welding position all, and spot welding is exited, and completes.
Claims (3)
1. a double-sided automatic spot welding machine control device, double-sided automatic spot welding machine comprises left screw mandrel (2), right screw mandrel (9) and the tool (5) for assembling battery core (10), left servomotor (1), right servomotor (8) respectively with left screw mandrel (2), right screw mandrel (9) connects, left spot welding head (3), right spot welding head (7) is connected to left screw mandrel (2), on right screw mandrel (9), left spot welding head (3), right spot welding head (7) is respectively equipped with left electrode bar (4), right electrode bar (6), it is characterized in that: comprise PLC (13), level converter (12) is connected with PLC (13), described left spot welding head (3), right spot welding head (7) all connects level converter (12), PLC (13) also with left servomotor (1), right servomotor (8) connects, described battery core (10) surface is provided with contact position.
2. a kind of double-sided automatic spot welding machine control device as claimed in claim 1, is characterized in that: described left spot welding head (3), right spot welding head (7) all connect described level converter (12) by holding wire (11).
3. a double-sided automatic spot welding machine control method, is characterized in that: adopt a kind of double-sided automatic spot welding machine control device as claimed in claim 1, the method is made up of following 4 steps:
Step 1: the tool (5) assembling battery core (10) is put between left electrode bar (4) and right electrode bar (6);
Step 2: make tool (5) reach desired location;
Step 3: by left servomotor (1), right servomotor (8) rotates, drive left screw mandrel (2), right screw mandrel (9) rotates, make to be connected to left screw mandrel (2), left spot welding head (3) on right screw mandrel (9), there is straight-line displacement in right spot welding head (7), when left spot welding head (3), during right spot welding head (7) touching battery core (10) surface contact position, left spot welding head (3), left electrode bar (4) on right spot welding head (7), right electrode bar (6) is respectively by battery core (10) surperficial conducting, Continuity signal transfers to PLC (13) process by level converter (12),
The level variable signal that PLC (13) incoming level conversion equipment (12) transports, and judge left spot welding head (3) according to this signal, whether right spot welding head (7) arrive battery core (10) surface contact position; When one side spot welding head arrives contact position, wait for that another side spot welding arrives contact position, until left spot welding head (3), right spot welding head (7) all arrive contact position;
Step 4: make left spot welding head (3), right spot welding head (7) moves to a welding position with identical work speed;
Step 5: carry out spot welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410790204.XA CN104493352B (en) | 2014-12-12 | 2014-12-17 | Double-sided automatic spot welding machine control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410768941X | 2014-12-12 | ||
| CN201410768941 | 2014-12-12 | ||
| CN201410790204.XA CN104493352B (en) | 2014-12-12 | 2014-12-17 | Double-sided automatic spot welding machine control method |
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| Publication Number | Publication Date |
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| CN104493352A true CN104493352A (en) | 2015-04-08 |
| CN104493352B CN104493352B (en) | 2017-01-11 |
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| CN201410790204.XA Active CN104493352B (en) | 2014-12-12 | 2014-12-17 | Double-sided automatic spot welding machine control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107097010A (en) * | 2017-03-06 | 2017-08-29 | 安普能源科技有限公司 | The Full-automatic welding equipment and its control method of a kind of lithium battery module |
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| US6288356B1 (en) * | 2000-01-10 | 2001-09-11 | Dane Systems, Inc. | Apparatus for making welds through partitions in battery cases |
| CN201389712Y (en) * | 2009-03-12 | 2010-01-27 | 曾世明 | Battery pack double-sided automatic spot welding system |
| CN101992340A (en) * | 2009-08-19 | 2011-03-30 | 神讯电脑(昆山)有限公司 | Spot welder device |
| US20120149258A1 (en) * | 2010-08-03 | 2012-06-14 | Steven Tartaglia | System, method and apparatus for connecting battery cells |
| CN102554438A (en) * | 2012-01-31 | 2012-07-11 | 福州星云自动化技术有限公司 | Spot welding system for electrode plates of power battery pack |
| CN103658955A (en) * | 2012-09-26 | 2014-03-26 | 天宇通讯科技(昆山)有限公司 | Battery pack automatic spot welding system |
| CN204339117U (en) * | 2014-12-12 | 2015-05-20 | 上海电动工具研究所 | A kind of double-sided automatic spot welding machine control device |
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2014
- 2014-12-17 CN CN201410790204.XA patent/CN104493352B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6288356B1 (en) * | 2000-01-10 | 2001-09-11 | Dane Systems, Inc. | Apparatus for making welds through partitions in battery cases |
| CN201389712Y (en) * | 2009-03-12 | 2010-01-27 | 曾世明 | Battery pack double-sided automatic spot welding system |
| CN101992340A (en) * | 2009-08-19 | 2011-03-30 | 神讯电脑(昆山)有限公司 | Spot welder device |
| US20120149258A1 (en) * | 2010-08-03 | 2012-06-14 | Steven Tartaglia | System, method and apparatus for connecting battery cells |
| CN102554438A (en) * | 2012-01-31 | 2012-07-11 | 福州星云自动化技术有限公司 | Spot welding system for electrode plates of power battery pack |
| CN103658955A (en) * | 2012-09-26 | 2014-03-26 | 天宇通讯科技(昆山)有限公司 | Battery pack automatic spot welding system |
| CN204339117U (en) * | 2014-12-12 | 2015-05-20 | 上海电动工具研究所 | A kind of double-sided automatic spot welding machine control device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107097010A (en) * | 2017-03-06 | 2017-08-29 | 安普能源科技有限公司 | The Full-automatic welding equipment and its control method of a kind of lithium battery module |
| CN107097010B (en) * | 2017-03-06 | 2019-07-12 | 安普能源科技有限公司 | A kind of the Full-automatic welding equipment and its control method of lithium battery mould group |
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| CN104493352B (en) | 2017-01-11 |
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