CN104493352B - Double-sided automatic spot welding machine control method - Google Patents
Double-sided automatic spot welding machine control method Download PDFInfo
- Publication number
- CN104493352B CN104493352B CN201410790204.XA CN201410790204A CN104493352B CN 104493352 B CN104493352 B CN 104493352B CN 201410790204 A CN201410790204 A CN 201410790204A CN 104493352 B CN104493352 B CN 104493352B
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- CN
- China
- Prior art keywords
- spot welding
- welding head
- screw mandrel
- battery core
- contact position
- Prior art date
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Classifications
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Resistance Welding (AREA)
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 during single-unit battery core connects into set of cells by nickel sheet, nickel sheet be welded on battery core surface and realize the connection in series-parallel of battery, and then form set of cells, belong to automatic control technology field.
Background technology
The structure of double-sided automatic spot welding machine is as shown in Figure 1, including 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, it is respectively provided with left electrode bar 4 and right electrode bar 6 on left and right spot welding head, installs the tool 5 of battery core 10 between left and right electrode bar.
During single-unit battery core connects into set of cells by nickel sheet, needing to be welded on nickel sheet battery core surface, the flow process of traditional double-sided automatic spot welding machine spot welding is: put into tool, arrives specified point, point of arrival welding position, spot welding, completes.In above-mentioned flow process, owing to the reason such as machining, installation can make mash welder the right and left electrode bar different to the distance on battery core surface, this compresses battery core when can cause both sides electrode bar difference.The making of tool is not card jail battery core, battery core can be caused to move so compressing battery core during the electrode bar difference of both sides, and be placed on the nickel sheet on battery core surface, can misplace therewith yet, and then affect the quality of spot welding.
Summary of the invention
The technical problem to be solved in the present invention be to provide a kind of can prevent battery core move and nickel sheet dislocation double-sided automatic spot welding machine control device and method, to improve the quality of spot welding.
In order to solve above-mentioned technical problem, the technical scheme is that a kind of double-sided automatic spot welding machine of offer controls device, double-sided automatic spot welding machine includes left screw mandrel, right screw mandrel and for assembling the tool of 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, left electrode bar it is respectively equipped with on right spot welding head, right electrode bar, it is characterized in that: include PLC, level converter is connected with PLC, described left spot welding head, right spot welding head is all connected with 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 characterised in that: using above-mentioned a kind of double-sided automatic spot welding machine to 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 setting position；
Step 3: rotated by left servomotor, right servomotor, left screw mandrel, right screw mandrel is driven to rotate, make the left spot welding head being connected 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 contact position, battery core surface, left electrode bar, right electrode bar on left spot welding head, right spot welding head are turned on by battery core surface respectively, and Continuity signal is transmitted to PLC process by level converter；
The level variable signal that the conveying of PLC incoming level conversion equipment comes, and judge whether left spot welding head, right spot welding head arrive contact position, battery core surface according to this signal；When one side spot welding head arrives contact position, wait 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 move to a welding position with identical work speed；
Step 5: carry out spot welding.
The method that the present invention provides 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 at contact position, now both sides extremely rod all contacts battery core, at this condition point of arrival welding position again, so battery core would not produce movement, and nickel sheet also will not produce dislocation.
The device that the present invention provides 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；
The double-sided automatic spot welding machine that Fig. 2 provides for the present invention controls device schematic diagram；
The double-sided automatic spot welding machine control method schematic diagram that Fig. 3 provides for the present 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 owing to both sides electrode handful surface is different from the distance on battery core surface.When motor speed is identical, arrives the time difference on battery core surface 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., therefore arranges the position on a contact battery core surface, and before point of arrival welding position, two electrode bars just can realize arriving battery core surface simultaneously.Treating that both sides electrode bar all contacts with battery core, then carry out compressing battery core, battery core would not produce movement, and nickel sheet also will not produce dislocation.
Fig. 2 controls device schematic diagram for the double-sided automatic spot welding machine that the present invention provides, and described double-sided automatic spot welding machine controls device and includes holding wire 11, level converter 12, PLC13 etc., and contacts position in battery core surface configuration.Left spot welding head 3, right spot welding head 7 being connected holding wire 11, and the signal carried by holding wire 11 is connected with PLC13 through level converter 12, PLC13 output controls the signal of servomotor, it is achieved the feedback of signal during automatic spot.
In conjunction with Fig. 3, its control method is: rotated by left servomotor 1, right servomotor 8, left screw mandrel 2, right screw mandrel 9 is driven to rotate, make the left spot welding head 3 being connected on left screw mandrel 2, right screw mandrel 9, right spot welding head 7 that straight-line displacement occur, when left spot welding head 3, right spot welding head 7 touch battery core surface i.e. contact time, left electrode bar 4, right electrode bar 6 on left spot welding head 3, right spot welding head 7 are turned on by battery core surface respectively, Continuity signal is transmitted to PLC13 process by level converter 12, and PLC13 controls servomotor rotation by processing signal or stops.
During automatic spot, PLC13 is able to receive that level variable signal, and judges whether spot welding head arrives battery core surface and i.e. contact position according to signal, 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 on one side, wait that the right spot welding head of another side 7 or left spot welding head 3 arrives contact position, after treating that the left and right spot welding head in both sides all arrives at 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 to specify position, and left and right spot welding head all arrives contact position, left and right spot welding head all point of arrival welding position, spot welding, exits, completes.
Claims (2)
1. a double-sided automatic spot welding machine control method, double-sided automatic spot welding machine includes left screw mandrel (2), right screw mandrel (9)
And it being used for assembling the tool (5) of battery core (10), left servomotor (1), right servomotor (8) are respectively
Being connected with left screw mandrel (2), right screw mandrel (9), left spot welding head (3), right spot welding head (7) are connected to a left side
On screw mandrel (2), right screw mandrel (9), left spot welding head (3), right spot welding head are respectively equipped with left electrode bar on (7)
(4), right electrode bar (6), also include PLC (13), level converter (12) is with PLC (13) even
Connecing, described left spot welding head (3), right spot welding head (7) are all connected with level converter (12), PLC (13)
Also it is connected with left servomotor (1), right servomotor (8)；Described battery core (10) surface is provided with contact position；
It is characterized in that: the method is made up of following 5 steps:
Step 1: the tool (5) assembling battery core (10) is put into left electrode bar (4) and right electrode bar (6)
Between；
Step 2: make tool (5) reach setting position；
Step 3: by left servomotor (1), right servomotor (8) rotate, drive left screw mandrel (2),
Right screw mandrel (9) rotates so that be connected to the left spot welding head (3) on left screw mandrel (2), right screw mandrel (9), the right side
There is straight-line displacement in spot welding head (7), when left spot welding head (3), right spot welding head (7) touching battery core (10) table
During contact position, face, the left electrode bar (4) on left spot welding head (3), right spot welding head (7), right electrode bar (6)
Being turned on by battery core (10) surface respectively, Continuity signal is by level converter (12) transmission to PLC
(13) process；
The level variable signal that PLC (13) incoming level conversion equipment (12) conveying comes, and according to this signal
Judge whether left spot welding head (3), right spot welding head (7) arrive contact position, battery core (10) surface；When an edge point
When soldering tip arrives contact position, wait that another side spot welding arrives contact position, until left spot welding head (3), right spot welding head
(7) contact position is all arrived；
Step 4: make left spot welding head (3), right spot welding head (7) move to a welding position with identical work speed；
Step 5: carry out spot welding.
2. a kind of double-sided automatic spot welding machine control method as claimed in claim 1, it is characterised in that: described left point
Soldering tip (3), right spot welding head (7) all connect described level converter (12) by holding wire (11).
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 |
|---|---|---|---|
| CN201410768941 | 2014-12-12 | ||
| CN201410768941X | 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 |
|---|---|
| CN104493352A CN104493352A (en) | 2015-04-08 |
| CN104493352B true CN104493352B (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410790204.XA Active CN104493352B (en) | 2014-12-12 | 2014-12-17 | Double-sided automatic spot welding machine control method |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107097010B (en) * | 2017-03-06 | 2019-07-12 | 安普能源科技有限公司 | Full-automatic welding equipment for lithium battery module and control method of full-automatic welding equipment |
Family Cites Families (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 |
| CN101992340B (en) * | 2009-08-19 | 2014-06-25 | 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 |
| CN102554438B (en) * | 2012-01-31 | 2014-08-13 | 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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- 2014-12-17 CN CN201410790204.XA patent/CN104493352B/en active Active
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| CN104493352A (en) | 2015-04-08 |
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