Ultrasonic metal welding head convenient to replace

Abstract

The utility model discloses an ultrasonic metal welding head convenient to replace, which comprises an ultrasonic triple pressing driving air cylinder, and the bottom position of the ultrasonic triple pressing driving air cylinder is fixed at the top position of an ultrasonic triple piece clamping body; the ultrasonic transducer is characterized in that the output end of the transducer body is connected to one side of an amplitude-change pole assembly, and a set of ultrasonic ox horn welding heads are installed on the left side of the amplitude-change pole assembly; the limiting mechanism comprises two sets of limiting attaching blocks which slide relatively and are arranged in the ultrasonic triple piece clamping body. According to the ultrasonic metal welding head convenient to replace, the arranged limiting mechanism is used for assisting, rapid falling of the transducer body, the amplitude-change pole assembly and the ultrasonic ox horn welding head is achieved, later replacement treatment is facilitated, by increasing the ox horn length of the welding head, after the welding face of the welding head is abraded, face lowering coping treatment can be conducted, and the welding efficiency is improved. The service life of the welding head is prolonged, and meanwhile the welding cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field related to welding heads, in particular to an ultrasonic metal welding head which is easy to replace. Background Art

[0002] In the current lithium battery industry, temperature and voltage sampling and monitoring are performed on each cell in the battery pack. Voltage sampling is performed at the welding point where the flexible cable is welded to the busbar of the battery pack, usually using laser or ultrasonic welding.

[0003] When the existing ultrasonic metal welding head is used for a long time, the welding head will be worn out. When the worn metal welding head is replaced, a replacement mechanism is needed.

[0004] In order to overcome the above-mentioned defects, reference can be made to the prior art (application number CN201922428524.1, publication date 2020-10-20) which discloses a new type of welding head with a double-horn welding head mode. The welding head is connected to the second slotted baffle through the top of the telescopic tube. A slot is opened in the middle of the second slotted baffle, and a fixed shaft is provided in the slot. The fixed shaft passes through the slot and engages the middle of the welding head compass. The second slotted baffle is connected to the welding machine base, so that the spot welding head can be replaced more conveniently without disassembly.

[0005] Although the existing technology can solve the purpose of replacement, when the ultrasonic metal welding head is used, the surface temperature of the welding head is relatively high, and the ultrasonic metal welding head cannot be replaced in a timely and effective manner.

[0006] Therefore, we proposed an ultrasonic metal welding head that is easy to replace and can solve the above problems well. Utility Model Content

[0007] The purpose of the present utility model is to provide an ultrasonic metal welding head that is easy to replace, so as to solve the problem raised in the above background technology that the surface temperature of the ultrasonic metal welding head currently on the market is relatively high when it is used, and the ultrasonic metal welding head cannot be replaced in a timely and effective manner.

[0008] To achieve the above-mentioned object, the present invention provides the following technical solutions: an ultrasonic metal welding head that is easy to replace, comprising an ultrasonic triple-down pressure driving cylinder, the bottom position of the ultrasonic triple-down pressure driving cylinder being fixed at the top position of the ultrasonic triple-clamping body;

[0009] The ultrasonic triple-piece clamping body is further provided with a limiting mechanism, which acts on the outside of the transducer body, the horn assembly and the ultrasonic horn welding head. The transducer body is installed on the right side of the ultrasonic triple-piece clamping body, the output end of the transducer body is connected to one side of the horn assembly, and a group of ultrasonic horn welding heads are installed on the left side of the horn assembly.

[0010] The limiting mechanism includes two sets of relatively sliding limiting blocks arranged inside the ultrasonic triple-joint clamping body.

[0011] As the preferred technical solution of this application, the ultrasonic horn ...

[0012] As the preferred technical solution of this application, the welding surface of the top of the added block is 9 mm, and the total height of the left side of the ultrasonic horn welding head is 70 mm, which not only lengthens the horn length of the welding head, but also improves the vibration uniformity of the welding surface of the welding head, thereby ensuring the quality of the welding joint of the welding workpiece.

[0013] As the preferred technical solution of the present application, a rotating screw is rotatably provided on the side of the ultrasonic triple-piece clamping body, and one end of the rotating screw extends into the interior of the ultrasonic triple-piece clamping body and is threadedly connected to the inner side of the connecting sleeve. The upper and lower ends of the connecting sleeve are rotatably connected to support rods, and the other end of the support rod is rotatably connected to the outer side of the limiting block. The amplitude variation rod assembly is limited by the provided limiting mechanism, which facilitates the later replacement of the ultrasonic bull horn welding head.

[0014] As a preferred technical solution of the present application, the inner side of the limiting block is fitted onto the outer side of the amplitude transformer assembly, and the protrusion provided on the side of the amplitude transformer assembly is slidably provided inside the guide rod, and the bottom end of the guide rod is fixed to the inner position of the ultrasonic triple-piece clamping body, so that the two sets of limiting blocks can slide stably.

[0015] As the preferred technical solution of the present application, the moving directions of the two groups of limit blocks are relatively set, and the limit blocks form a sliding structure between the support rod and the outer side of the guide rod, and the connecting sleeve drives the support rod to move by rotating the screw rod.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the ultrasonic metal welding head that is easy to replace is assisted by a limiting mechanism, which enables the transducer body, the horn assembly and the ultrasonic horn welding head to be quickly detached, which is convenient for later replacement processing. In addition, the horn length of the welding head is increased, so that the welding head can be ground down after the welding surface is worn, which not only increases the service life of the welding head, but also reduces the cost of welding. The specific contents are shown below:

[0017] 1. An ultrasonic horn welding head is set up. By designing a raised boss on the right root of the horn, not only the horn length of the welding head can be lengthened, but also the vibration uniformity of the welding surface of the welding head is improved, ensuring the quality of the welding joint of the welding workpiece and meeting the needs of welding applications to the greatest extent.

[0018] 2. The raised platform designed on the right root of the horn improves the vibration uniformity of the welding surface, which can maximize the transmission of ultrasonic energy to the welding workpiece. Compared with conventional horn welding heads, it can reduce welding parameters and power consumption of the welding machine to a certain extent, meeting the requirements of energy conservation and emission reduction.

[0019] 3. A limiting mechanism is set up. With the assistance of the limiting mechanism, the support rod with a rotating connection can be connected through a threaded connection to drive the limiting block to move its position. The limit can be released by adjusting the position of the limiting block, which is convenient for the later replacement and use of the ultrasonic horn welding head. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the ultrasonic horn welding head of the utility model;

[0022] Figure 3 This is a schematic diagram of the main cross-sectional structure of the ultrasonic horn welding head of the utility model;

[0023] Figure 4 This is a side view structural diagram of the utility model;

[0024] Figure 5 This is a schematic diagram of the cross-sectional structure of the ultrasonic triplex clamping body of the utility model;

[0025] Figure 6 For this utility model Figure 5 Enlarged structural diagram at point A in the middle.

[0026] In the figure: 1. Ultrasonic triple-down pressure drive cylinder; 2. Ultrasonic triple-piece clamping body; 3. Transducer body; 4. Amplitude transformer assembly; 5. Ultrasonic horn welding head; 501. Horn welding head body; 502. Adding block; 503. Raised boss block; 6. Rotating screw; 7. Connecting sleeve; 8. Support rod; 9. Limiting block; 10. Guide rod. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figures 1-6 , the utility model provides the following technical solutions:

[0029] Example 1: In order to ensure the service life of the ultrasonic horn welding head 5 and reduce the use and maintenance cost of the ultrasonic horn welding head 5, please refer to the attached Figure 1 -Attached Figure 4 , including an ultrasonic triple-down pressure driving cylinder 1, the bottom position of the ultrasonic triple-down pressure driving cylinder 1 is fixed at the top position of the ultrasonic triple-piece clamping body 2; it also includes: a limiting mechanism is set inside the ultrasonic triple-piece clamping body 2, the limiting mechanism acts on the outside of the transducer body 3, the horn assembly 4 and the ultrasonic horn welding head 5, the transducer body 3 is installed on the right side of the ultrasonic triple-piece clamping body 2, the output end position of the transducer body 3 is connected to one side of the horn assembly 4, and a group of ultrasonic horn welding heads 5 are installed on the left side of the horn welding head assembly 4; the ultrasonic horn welding head 5 includes a horn welding head body 501, and the upper and lower ends of the left side of the horn welding head body 501 are fixed with an increase block 502, and the right root of the ultrasonic triple-piece clamping body 2 is fixed with a group of raised boss blocks 503 with a length of 13 mm and a width of 7 mm. The welding surface of the top of the increase block 502 is 9 mm, and the total height of the left side of the ultrasonic horn welding head 5 is 70 mm.

[0030] By changing the design of the ultrasonic horn welding head 5, not only is the length of the ultrasonic horn welding head 5 changed by setting the additional block 502, but the problem of the conventional horn welding head easily causing the lower end face of the ultrasonic triple clamping device to collide with the surface of the welding workpiece during welding, which leads to the risk of reduced welding quality. At the same time, compared with the problem of the conventional ultrasonic horn welding head 5 in CCS welding applications, which cannot be re-grinded and reused after the welding surface is worn, resulting in an increase in welding use costs, the horn welding head of this design can solve the above-mentioned problem, increase the service life of the welding head, and also reduce the use and maintenance costs of welding. In addition, the vibration distribution is very uniform. During actual welding, the strength of the welding point is high, and the consistency of the welding point is also greatly improved.

[0031] Example 2: For the convenience of replacement operation in the later stage, please refer to the attached Figure 4 -Attached Figure 6 The limiting mechanism includes two groups of relatively sliding limiting patches 9 arranged inside the ultrasonic triple-piece clamping body 2. A rotating screw 6 is rotatably arranged on the side position of the ultrasonic triple-piece clamping body 2, and the rotating screw 6 extends into one end position inside the ultrasonic triple-piece clamping body 2 and is threadedly connected to the inner side of the connecting sleeve 7. The upper and lower ends of the connecting sleeve 7 are rotatably connected to the support rod 8, and the other end position of the support rod 8 is rotatably connected to the outer side of the limiting patch 9. The inner side position of the limiting patch 9 fits the outer side position of the amplitude transformer assembly 4, and the protrusion set at the side position of the amplitude transformer assembly 4 is slidably set inside the guide rod 10, and the bottom end position of the guide rod 10 is fixed to the inner position of the ultrasonic triple-piece clamping body 2. The moving directions of the two groups of limiting patches 9 are relatively set, and the limiting patches 9 form a sliding structure between the support rod 8 and the outer side of the guide rod 10.

[0032] By rotating the rotating screw 6 set on one side of the ultrasonic triple-piece clamping body 2, the output end position of the rotating screw 6 can drive the threaded connecting sleeve 7 to slide inside the ultrasonic triple-piece clamping body 2, and the support rod 8 connected to the upper and lower ends of the connecting sleeve 7 can be moved, so that the support rod 8 can slide inside the ultrasonic triple-piece clamping body 2, and the other end position of the support rod 8 is rotated and connected to one side of the limit block 9. When the two groups of limit blocks 9 move relative to each other, it is convenient to replace the ultrasonic horn welding head 5 at a later time.

[0033] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0034] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An ultrasonic metal welding head that is easy to replace, comprising an ultrasonic triple-down pressure driving cylinder (1), wherein the bottom position of the ultrasonic triple-down pressure driving cylinder (1) is fixed to the top position of the ultrasonic triple-clamping body (2); It is characterized in that Also includes: A limiting mechanism is provided inside the ultrasonic triple-piece clamping body (2), and the limiting mechanism acts on the outside of the transducer body (3), the amplitude-changing rod assembly (4), and the ultrasonic horn welding head (5). The transducer body (3) is installed on the right side of the ultrasonic triple-piece clamping body (2), and the output end of the transducer body (3) is connected to one side of the amplitude-changing rod assembly (4). A group of ultrasonic horn welding heads (5) are installed on the left side of the amplitude-changing rod assembly (4); The limiting mechanism comprises two sets of relatively sliding limiting blocks (9) arranged inside the ultrasonic triple-joint clamping body (2).

2. The easily replaceable ultrasonic metal welding head according to claim 1, characterized in that: The ultrasonic horn welding head (5) comprises a horn welding head body (501), and the upper and lower ends of the left side of the horn welding head body (501) are fixed with additional blocks (502), and the right root of the ultrasonic triple-joint clamping body (2) is fixed with a group of raised boss blocks (503) with a length of 13 mm and a width of 7 mm.

3. The easily replaceable ultrasonic metal welding head according to claim 2, characterized in that: The welding surface of the top of the added block (502) is 9 mm, and the total height of the left side of the ultrasonic horn welding head (5) is 70 mm.

4. The easily replaceable ultrasonic metal welding head according to claim 1, characterized in that: A rotating screw (6) is rotatably provided on the side of the ultrasonic triple-piece clamping body (2), and one end of the rotating screw (6) extending into the interior of the ultrasonic triple-piece clamping body (2) is threadedly connected to the inner side of the connecting sleeve (7), and the upper and lower ends of the connecting sleeve (7) are rotatably connected to support rods (8), and the other end of the support rod (8) is rotatably connected to the outer side of the limiting block (9).

5. The easily replaceable ultrasonic metal welding head according to claim 4, characterized in that: The inner side of the limiting block (9) is fitted on the outer side of the amplitude transformer assembly (4), and the protrusion provided on the side of the amplitude transformer assembly (4) is slidably provided inside the guide rod (10), and the bottom end of the guide rod (10) is fixed inside the ultrasonic triple-joint clamping body (2).

6. The easily replaceable ultrasonic metal welding head according to claim 1, characterized in that: The movement directions of the two groups of the limiting blocks (9) are relatively set, and the limiting blocks (9) form a sliding structure between the support rod (8) and the outer side of the guide rod (10).

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