Automatic cleaning device for ultrasonic welding seat
By installing cleaning devices and decontamination devices on the welding device, and cleaning welding seats with high-frequency vibrators and dust removal groove plates, the problem of particle accumulation of welding seats is solved, and the pass rate of lithium-ion battery production is improved and the cost is reduced.
Patent Information
- Application Number
- CN202422281952.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-14
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-09-14
AI Technical Summary
During the ultrasonic welding of lithium-ion power batteries, the remaining particles in the gap between the pole ear and the welding seat accumulate rapidly, causing the welding seat to stick, affecting the production pass rate and increasing costs.
Cleaning devices and impurity removal devices are installed on the existing welding devices, including brush heads driven by high-frequency vibrators and dust removal groove plates, cleaning the welding seats through high-frequency vibrations and sucking away particles using dust removal groove plates.
Effectively avoid the accumulation of welding base particles, prevent the adhesion of the electrodes, improve the production yield of the battery cell, and reduce production costs.
Smart Images
Figure CN223264967U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of battery welding, and particularly relates to a device for automatically cleaning an ultrasonic welding seat. Background Art
[0002] The statements in this section merely provide background technical information related to the present invention and do not necessarily constitute prior art.
[0003] Currently, new energy vehicles primarily rely on lithium-ion batteries for their power. Consequently, the requirements for the performance of lithium-ion batteries are becoming increasingly stringent. Based on their form factor, these batteries can be categorized into square-shell batteries, cylindrical batteries, and soft-pack batteries.
[0004] Prismatic battery production mostly utilizes a winding process. The cores produced by the winding machine are compacted using hot pressing, then inspected by X-ray for workpiece coating before proceeding to the ultrasonic pre-welding process. Ultrasonic welding utilizes a transducer to convert high-frequency electrical energy into mechanical vibrations, which are then transmitted to the welding head. The welding head receives this vibrational energy and transmits it to the joint of the workpiece to be welded. In this area, the vibrational energy is converted into heat through friction. A certain amount of pressure is then applied to bring the loosely packed multiple tabs into close contact, achieving atomic bonding and forming a weld.
[0005] However, during this process, some particles remain in the gap between the tab and the weld base. These particles, dislodged by metal vibration and friction, adhere to the weld base due to frictional heat, weakening the FFU's dust removal effectiveness. In automated production, these particles accumulate rapidly. When accumulation reaches a certain level, the tab adheres to the weld base, damaging the tab, affecting production yields, and increasing production costs. Utility Model Content
[0006] In response to the above problems, the utility model provides an automatic cleaning device for an ultrasonic welding seat, which can be equipped with a cleaning device and a de-impurity device on the existing welding device, so as to clean the welding seat in time, effectively avoid the accumulation of particles on the welding seat, and prevent the tab from sticking to the welding seat.
[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0008] An ultrasonic welding seat automatic cleaning device includes a welding head, a welding seat and a controller. The welding head is connected to the lower end of an ultrasonic welding head adjustment module, and the welding seat is connected to the upper end of the ultrasonic welding seat adjustment module. The ultrasonic welding head adjustment module and the ultrasonic welding seat adjustment module are both connected to the controller. A cleaning device is provided on one side of the welding seat, and impurity removal devices are provided on the welding head and the welding seat.
[0009] The cleaning device includes a cleaning head, which includes a high-frequency vibrator. The output end of the high-frequency vibrator is fixedly connected to the brush head. The top surface of the brush head is provided with an infrared distance measurement device, and the bottom surface is provided with a detachable brush.
[0010] The impurity removal device includes a baffle and a dust removal groove plate. The dust removal groove plates are provided with two, including an upper dust removal groove plate and a lower dust removal groove plate. The baffle and the two dust removal groove plates can form a hollow quadrilateral to surround the welding head and the welding seat.
[0011] The dust removal groove plate is composed of three plates in the shape of a "concave". The inside of the three plates are hollow, and there are mesh holes on the inner surface facing the welding seat or welding head.
[0012] One end of the dust removal air duct is connected to one side outer surface of the dust removal groove plate, and the other end is connected to a dust collector;
[0013] The vacuum cleaner, infrared ranging and high-frequency vibrator are all connected to the controller.
[0014] Preferably, the baffle and the upper dust removal groove plate are arranged at the bottom of the ultrasonic welding head adjustment module.
[0015] Preferably, the impurity removal device further comprises a support plate arranged on one side of the ultrasonic welding seat adjustment module, the support plate being fixedly connected to the platform; a lower dust removal groove plate is fixedly arranged on the support plate.
[0016] Preferably, the cleaning device also includes two groups of telescopic pumps fixed on the platform, the output end of each group of telescopic pumps is connected to a parallel slide rail, and a drive module is fixedly connected to the end of the two parallel slide rails away from the welding seat; the drive module and the telescopic pump are both connected to the controller.
[0017] Preferably, a slider is slidably connected to the two parallel slide rails, the output end of the driving module is fixedly connected to the slider, and the slider is fixedly connected to the cleaning head.
[0018] Preferably, a brush fixing groove is provided at the bottom of the brush head, and the brush body of the detachable brush has bristles, and brush clamping grooves are provided on both sides for engaging with the brush fixing groove.
[0019] Preferably, the top of the welding seat is always lower than the top of the lower dust removal groove plate.
[0020] Preferably, the high-frequency vibrator has a set working time.
[0021] Compared with the prior art, the advantages and positive effects of this utility model are:
[0022] The utility model adds a cleaning device and a debris removal device to the existing welding device, drives the brush head to clean the welding seat through a high-frequency vibrator, and also uses the dust removal groove plate to absorb dust and remove debris from the welding seat during the cleaning process of the brush head, so that the welding seat can be cleaned in a timely and effective manner; when welding, the welding head and the welding seat can be enclosed in a closed space to absorb dust and remove debris from the particles generated by welding; it effectively avoids the accumulation of particles on the welding seat, prevents the tab from sticking to the welding seat, improves the production yield of the battery cell, and saves manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.
[0024] Figure 1 This is a schematic diagram of the overall device of an embodiment of the utility model;
[0025] Figure 2 Schematic diagram of a cleaning head according to an embodiment of the present invention;
[0026] Figure 3 This is a schematic diagram of the bottom surface of the brush head of an embodiment of the present utility model;
[0027] Figure 4 Schematic diagram of a detachable brush according to an embodiment of the present invention;
[0028] Figure 5 Schematic diagram of the lower dust removal groove plate of an embodiment of the present utility model;
[0029] Figure 6 This is a schematic diagram of the distance between the cleaning head, welding head and welding seat in an embodiment of the present utility model;
[0030] In the picture:
[0031] 01. Ultrasonic welding head adjustment module; 02. Dust removal air duct; 03. Welding head; 04. Baffle; 05. Welding seat; 06. Ultrasonic welding seat adjustment module; 07. Cleaning head; 071. High-frequency vibrator; 072. Brush head; 0721. Brush fixing groove; 073. Removable brush; 0731. Bristles; 0732. Brush card slot; 074. Infrared ranging; 08. Parallel slide rail; 09. Slider; 10. Drive module; 11. Telescopic pump; 12. Platform; 13. Support plate; 14. Dust removal groove plate; 141. Mesh holes. DETAILED DESCRIPTION
[0032] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.
[0033] The present invention is described in detail below with reference to the accompanying drawings. The present embodiment discloses an automatic cleaning device for an ultrasonic welding seat. Figure 1 As shown, the device includes a cleaning device and an impurity removal device installed on an existing welding device. The existing welding device includes a welding head 03, a welding base 05, and a controller. The welding head 03 is connected to the lower end of the ultrasonic welding head adjustment module 01, and the welding base 05 is connected to the upper end of the ultrasonic welding base adjustment module 06. The ultrasonic welding head adjustment module 01 and the ultrasonic welding base adjustment module 06 are both connected to the controller. It can be understood that the ultrasonic welding head adjustment module 01, the ultrasonic welding base adjustment module 06, and the controller are all existing technologies. The controller controls the operation of the ultrasonic welding head adjustment module 01 and the ultrasonic welding base adjustment module 06 to adjust the height of the welding head 03 and the welding base 05.
[0034] like Figure 1 As shown, an automatic cleaning device for an ultrasonic welding base includes a cleaning device disposed on one side of the welding head 03 and welding base 05, and an impurity removal device disposed on the welding head 03 and welding base 05. The cleaning device includes two sets of telescopic pumps 11 fixed to a platform 12. In this embodiment, there are four telescopic pumps 11, each set of two. The output end of each set of telescopic pumps is connected to a parallel slide rail 08. A drive module 10 is fixedly connected to the end of the two parallel slide rails 08 away from the welding base 05. It is understood that the drive module 10 can be a hydraulic telescopic cylinder or an electric telescopic cylinder in the prior art. In this embodiment, an electric telescopic cylinder is selected as the drive module.
[0035] A slider 09 is slidably connected to the two parallel rails 08. The output end of the driving module 10 is fixedly connected to the slider 09. The cleaning head 07 is fixedly connected to the slider 09. The output end of the driving module 10 can drive the slider to move on the parallel rails, thereby driving the cleaning head to move on the parallel rails. Figure 2 As shown, cleaning head 07 includes a high-frequency vibrator 071 fixedly mounted on slider 09. The output end of high-frequency vibrator 071 is fixedly connected to a brush head 072. The top surface of brush head 072 is equipped with an infrared rangefinder 074, and the bottom surface is equipped with a detachable brush 073. It is understood that when high-frequency vibrator 071 is turned on, it can drive the detachable brush 073 to clean welding base 05. The infrared rangefinder 074 can detect the distance between the top surface of the brush head and other objects.
[0036] like Figure 3As shown, a brush fixing groove 0721 is provided at the bottom of the brush head 072, bristles 0731 are provided on the detachable brush 073, and brush clamping grooves 0732 are provided on both sides of the detachable brush 073 for engaging with the brush fixing groove 0721; when the bristles 0731 of the detachable brush 073 are worn, a new detachable brush 073 can be replaced in time.
[0037] like Figure 1 、 Figure 5 As shown, the impurity removal device includes a baffle 04 and a dust removal groove plate 14, and the dust removal groove plate 14 has two, including an upper dust removal groove plate and a lower dust removal groove plate; the dust removal groove plate 14 is composed of three plates, which are in the shape of a "concave" character; it can be seen that the baffle 04 and the upper dust removal groove plate are arranged at the bottom of the ultrasonic welding head adjustment module 01, and wrap the welding head inside; the impurity removal device also includes a support plate 13 arranged on one side of the ultrasonic welding seat adjustment module 06, and the support plate 13 is fixedly connected to the platform 12; the support plate 13 is fixedly provided with a lower dust removal groove plate 14; the baffle 04 and the two dust removal groove plates 14 can form a hollow quadrilateral, which can surround the welding head 03 and the welding seat 05.
[0038] like Figure 5 As shown, the three plates of the dust removal groove plate 14 are hollow, and each has a mesh-like hole 141 on its inner surface facing the welding seat 05 or welding head 03. One end of the dust removal air duct 02 is also connected to one outer surface of the dust removal groove plate 14. It is understood that the other end of the dust removal air duct 02 is connected to a vacuum cleaner, which uses existing technology. The vacuum cleaner can remove impurities and dust from the space enclosed by the dust removal groove plate 14 through the mesh-like holes 141.
[0039] It should be noted that during welding or cleaning, the top of the welding seat 05 is always lower than the top of the lower dust removal groove plate 14. This is because when the welding head 03 descends and welds the workpiece with the welding seat 05, the baffle 04 and the two dust removal groove plates 14 can form a relatively closed space, so that the welding position can be at the bottom of the connection between the two dust removal groove plates, thereby improving the impurity removal effect during the welding process.
[0040] As shown in Figure 6, when the welding work is completed, the height d between the welding head and the welding seat is fixed, d = d1 + d2 + d3; among them, d1 is the distance from the welding head to the top of the brush head in the initial stage of cleaning, d2 is the distance from the bottom of the brush bristles to the top of the brush head, and d3 is the distance from the bottom of the brush bristles to the welding seat in the initial stage of cleaning. It can be understood that d2 is fixed.
[0041] like Figure 1 、 Figure 6As shown, when the cleaning head 07 is driven by the driving module 10 to move the brush head 072 to the bottom of the welding head 03, the infrared ranging 074 measures the distance between the welding head and the infrared ranging 074. When the distance measured by the infrared ranging 074 is equal to d1, the brush head 072 is located below the welding head 03.
[0042] As mentioned above, the welding head in the prior art is controlled by the controller to rise and fall. It should be noted that in the prior art, the controller can control the corresponding device such as a manipulator to move the workpiece to the welding position, and then control the ultrasonic welding head adjustment module to drive the welding head to descend, and start welding after contacting the tab. After welding is completed, the ultrasonic welding head adjustment module is controlled to drive the welding head to rise and reset, and the welded workpiece is removed and replaced with the next workpiece. In this embodiment, the drive module, telescopic pump, infrared ranging, high-frequency vibrator and vacuum cleaner are connected to the existing controller; the infrared ranging can transmit the measured distance information to the controller, and the controller can control the action of the drive module, telescopic pump, vacuum cleaner and high-frequency vibrator; it can be understood that the high-frequency vibrator has a set working time. When the working time of the high-frequency vibrator ends, the controller can control the drive module, telescopic pump and vacuum cleaner to perform the next step. In this embodiment, the working time range of the high-frequency vibrator is 0-10s, which can be set according to actual conditions. After the high-frequency vibrator stops vibrating, the drive module drives the cleaning head to reset, and the vacuum cleaner stops working at the same time.
[0043] Working principle:
[0044] Before ultrasonic welding, the operator first adjusts the height of the welding seat to slightly lower than the height of the lower dust removal trough through the welding seat adjustment module, and then adjusts the relative height of the welding head and the welding seat through the welding head adjustment module; when the above actions are debugged, the operator sets the height of the cleaning device by adjusting the telescopic pump. During normal operation, the height of the telescopic pump is fixed; the above are the inspection steps before ultrasonic welding work. After completing the inspection, ultrasonic welding begins.
[0045] When a welding job is completed, the welding head rises and resets, and the workpiece is removed; the controller controls the driving module to drive the cleaning head 07 to move horizontally toward the welding seat 05 until the measured distance of the infrared ranging 073 is equal to d1+d3. At this time, the infrared ranging 073 reaches directly below the ultrasonic welding head adjustment module 01; it can be understood that at this time d3 is equal to 0.
[0046] Then the high-frequency vibrator is controlled to start, so that the bristles vibrate to clean the welding seat 05; at the same time, the vacuum cleaner is controlled to remove impurities; after the working time of the high-frequency vibrator ends, the controller will control the vacuum cleaner to stop removing impurities, and at the same time control the drive module to drive the cleaning head 07 to reset; then, the new workpiece is moved to the welding position, and then the welding head falls, the baffle and the dust removal groove plate form a closed space, and the controller controls the vacuum cleaner to start and remove dust and impurities during the welding process.
[0047] It is understandable that the bristles need to be checked regularly and replaced in a timely manner. When an abnormality occurs and the height needs to be adjusted, the height can be adjusted by the telescopic pump.
[0048] Although the above description of the specific implementation methods of the present invention is combined with the accompanying drawings, it does not limit the scope of protection of the present invention. Technical personnel in the relevant field should understand that on the basis of the technical solution of the present invention, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the present invention.
Claims
1. An ultrasonic welding seat automatic cleaning device, comprising a welding head, a welding seat and a controller, wherein the welding head is connected to the lower end of the ultrasonic welding head adjustment module, the welding seat is connected to the upper end of the ultrasonic welding seat adjustment module, and the ultrasonic welding head adjustment module and the ultrasonic welding seat adjustment module are both connected to the controller, characterized in that: A cleaning device is provided on one side of the welding seat, and impurity removal devices are provided on the welding head and the welding seat; The cleaning device includes a cleaning head, which includes a high-frequency vibrator. The output end of the high-frequency vibrator is fixedly connected to the brush head. The top surface of the brush head is provided with an infrared distance measurement device, and the bottom surface is provided with a detachable brush. The impurity removal device includes a baffle and a dust removal groove plate. The dust removal groove plates are provided with two, including an upper dust removal groove plate and a lower dust removal groove plate. The baffle and the two dust removal groove plates can form a hollow quadrilateral to surround the welding head and the welding seat. The dust removal groove plate is composed of three plates in the shape of a "concave". The inside of the three plates are hollow, and there are mesh holes on the inner surface facing the welding seat or welding head. One end of the dust removal air duct is connected to one side outer surface of the dust removal groove plate, and the other end is connected to a dust collector; The vacuum cleaner, infrared ranging and high-frequency vibrator are all connected to the controller.
2. The automatic cleaning device for ultrasonic welding seat according to claim 1, characterized in that: The baffle plate and the upper dust removal groove plate are arranged at the bottom of the ultrasonic welding head adjustment module.
3. The automatic cleaning device for ultrasonic welding seat according to claim 1, characterized in that: The impurity removal device also includes a support plate arranged on one side of the ultrasonic welding seat adjustment module, the support plate is fixedly connected to the platform; a lower dust removal groove plate is fixedly arranged on the support plate.
4. The automatic cleaning device for ultrasonic welding seat according to claim 1, characterized in that: The cleaning device also includes two groups of telescopic pumps fixed on the platform, the output end of each group of telescopic pumps is connected to a parallel slide rail, and a drive module is fixedly connected to the end of the two parallel slide rails away from the welding seat; the drive module and the telescopic pump are both connected to the controller.
5. The automatic cleaning device for ultrasonic welding seat according to claim 4, characterized in that: A sliding block is slidably connected to the two parallel slide rails, the output end of the driving module is fixedly connected to the sliding block, and the sliding block is fixedly connected to the cleaning head.
6. The automatic cleaning device for ultrasonic welding seat according to claim 1, characterized in that: A brush fixing groove is provided at the bottom of the brush head. The detachable brush has bristles on its brush body and brush clamping grooves are provided on both sides for clamping with the brush fixing groove.
7. The automatic cleaning device for ultrasonic welding seat according to claim 1, characterized in that: The top of the welding seat is always lower than the top of the lower dust removal groove plate.
8. The automatic cleaning device for ultrasonic welding seat according to claim 1, characterized in that: The high frequency vibrator has a set working time.