Ultrasonic welding machine
Technical Field
The invention relates to the technical field of battery production, in particular to an ultrasonic welding machine.
Background
In the process of processing the lithium battery, a tab of a battery cell and a connecting sheet need to be welded and fixed; in the existing welding device, the battery is placed into the jig, and then the welding head is aligned to the welding position of the lug and the connecting sheet by holding the welding equipment for welding, so that the labor intensity of the welding mode is high, and the welding quality is difficult to grasp.
Disclosure of Invention
The present invention is directed to an ultrasonic welding machine that overcomes the shortcomings and drawbacks of the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that:
the invention relates to an ultrasonic welding machine which comprises a rack, a welding unit, a carrier, a lower welding head and a vertical plate fixed on the rack, wherein the vertical plate is fixed on the rack; a cam power assembly is arranged in the frame; the cam power assembly can enable the welding unit and the lower welding head to move in the opposite direction or the opposite direction; and a linear module capable of sending the carrier between the welding unit and the lower welding head is fixed on the rack.
Further, a lower welding head sliding block is fixed on the lower welding head; a lower welding head guide rail and a first guide rail are fixed on the vertical plate; the lower welding head sliding block is connected with the lower welding head guide rail in a sliding manner; the welding unit is fixed on the welding unit fixing plate; and a first sliding block which is in sliding connection with the first guide rail is fixed on the welding unit fixing plate.
Furthermore, a lower air cylinder and a second guide rail are fixed on the welding unit fixing plate; a second slide block is connected to the second guide rail in a sliding manner; and the piston rod end and the second sliding block of the downward pressing cylinder are both fixed on the welding unit.
After adopting the structure, the invention has the beneficial effects that: the invention relates to an ultrasonic welding machine which comprises a rack, a welding unit, a carrier, a lower welding head and a vertical plate fixed on the rack, wherein the vertical plate is fixed on the rack; a cam power assembly is arranged in the frame; the cam power assembly can enable the welding unit and the lower welding head to move in the opposite direction or the opposite direction; and a linear module capable of sending the carrier between the welding unit and the lower welding head is fixed on the frame. When the welding device is used, the battery cell to be welded is clamped on the carrier, the connecting sheet is arranged on the lug, and then the linear module conveys the battery cell with the connecting sheet on the carrier to a position between the welding unit and the lower welding head; after the cam power assembly is started, the welding unit and the lower welding head are driven to move oppositely, and after the connecting sheet and the lug are compressed and fixed through the welding head and the lower welding head of the welding unit, the welding unit and the lower welding head work simultaneously to weld the connecting sheet on the lug; after welding is finished, the cam power assembly is started to drive the welding unit and the lower welding head to move back to back, and the linear module pulls the carrier out from between the welding unit and the lower welding head after the welding unit and the lower welding head release clamping of the lug, so that automatic welding of the lug and the connecting sheet is realized; the structure controls the stroke through the linear module and the cam power assembly, improves the welding quality and reduces the labor intensity.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the connection between the vertical plate and the welding unit;
description of reference numerals:
1. a frame; 2. a cam power assembly; 201. the lower welding head drives the connecting rod;
202. the upper welding head drives the connecting rod; 203. a cam; 3. a lower welding head slider; 4. a vertical plate;
5. a welding unit; 6. pressing down the air cylinder; 7. welding a unit fixing plate; 8. a carrier;
9. a lower weld head guide rail; 10. a lower welding head; 11. a linear module; 12. a first guide rail;
13. a second guide rail; 14. a second slider; 15. a first slider.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
As shown in fig. 1 to 2, the ultrasonic welding machine according to the present invention includes a frame 1, a welding unit 5, a carrier 8, a lower welding head 10, and a vertical plate 4 fixed on the frame 1; a cam power component 2 is arranged in the frame 1; the cam power assembly 2 can enable the welding unit 5 and the lower welding head 10 to move in a face-to-face or back-to-back mode; a linear module 11 capable of sending the carrier 8 between the welding unit 5 and the lower welding head 10 is fixed on the frame 1; the welding unit 5 and the lower welding head 10 are ultrasonic welding equipment, and have no essential difference from the prior art, so the details are not described;
the cell to be welded is clamped on a carrier 8, connecting sheets are arranged on tabs, and then the linear module 11 conveys the cell with the connecting sheets on the carrier 8 to a position between a welding unit 5 and a lower welding head 10; after the cam power assembly 2 is started, the welding unit 5 and the lower welding head 10 are driven to move oppositely, and after the connecting sheet and the lug are pressed and fixed through the welding head of the welding unit 5 and the lower welding head 10, the welding unit 5 and the lower welding head 10 work simultaneously to weld the connecting sheet on the lug; after welding, the cam power assembly 2 is started to drive the welding unit 5 and the lower welding head 10 to move back to back, and after the welding unit 5 and the lower welding head 10 release clamping of the lugs, the linear module 11 pulls the carrier 8 out from between the welding unit 5 and the lower welding head 10, so that automatic welding of the lugs and the connecting sheets is realized; the structure controls the stroke through the linear module 11 and the cam power assembly 2, improves the welding quality and reduces the labor intensity.
As a preferred mode of the present invention, a lower welding head slider 3 is fixed on the lower welding head 10; a lower welding head guide rail 9 and a first guide rail 12 are fixed on the vertical plate 4; the lower welding head sliding block 3 is in sliding connection with a lower welding head guide rail 9; the welding unit 5 is fixed on a welding unit fixing plate 7; a first sliding block 15 which is in sliding connection with the first guide rail 12 is fixed on the welding unit fixing plate 7; the cam power assembly 2 comprises a motor, the output end of the motor is fixed with a rotating shaft, and a plurality of cams 203 are arranged on the rotating shaft; one cam 203 is connected with the welding unit fixing plate 7 through the upper welding head driving connecting rod 202; the other cam 203 is connected with the lower welding head 10 through a lower welding head driving connecting rod 201; after the motor drives the rotating shafts to rotate, the cams on the rotating shafts move, and coordination of opposite or back movement between the welding unit 5 and the lower welding head 10 can be guaranteed.
As a preferred mode of the present invention, a hold-down cylinder 6 and a second guide rail 13 are fixed on the welding unit fixing plate 7; a second sliding block 14 is connected on the second guide rail 13 in a sliding manner; the piston rod end of the lower air cylinder 6 and the second sliding block 14 are fixed on the welding unit 5; the pressure tightly pressed on the connecting sheets and the lugs is provided for the welding unit 5 through the pressing cylinder 6, and the welding quality is guaranteed.
When the welding device is used, the battery cell to be welded is clamped on the carrier, the connecting sheet is arranged on the lug, and then the linear module conveys the battery cell with the connecting sheet on the carrier to a position between the welding unit and the lower welding head; the cam power assembly comprises a motor, the output end of the motor is fixedly provided with a rotating shaft, and the rotating shaft is provided with a plurality of cams; one cam is connected with the welding unit fixing plate through an upper welding head driving connecting rod; the other cam is connected with the lower welding head through a lower welding head driving connecting rod, after the motor drives the plurality of cams on the rotating shaft to move, the welding unit and the lower welding head can be ensured to move oppositely or oppositely, after the connecting sheet and the lug are tightly pressed and fixed through the welding head and the lower welding head of the welding unit, the welding unit and the lower welding head work simultaneously, and the connecting sheet is welded on the lug; after welding is finished, the cam power assembly is started to drive the welding unit and the lower welding head to move back to back, and the linear module pulls the carrier out from between the welding unit and the lower welding head after the welding unit and the lower welding head release clamping of the lug, so that automatic welding of the lug and the connecting sheet is realized; the structure controls the stroke through the linear module and the cam power assembly, so that the welding quality is improved, and the labor intensity is reduced; the pressure compressed on the connecting sheet and the lug is provided for the welding unit through the pressing cylinder, and the welding quality is guaranteed.
The above description is only a preferred embodiment of the present invention, and all equivalent changes or modifications of the structure, characteristics and principles described in the present invention are included in the scope of the present invention.