Ultrasonic welding equipment for mutual inductor shell
By designing a welding support mechanism and a fixture replacement mechanism, the rapid switching of the transformer housing specifications was achieved, solving the problem of cumbersome fixture replacement in the existing technology and improving welding efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO HAOTE STORAGE EQUIP MFG CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-04-14
AI Technical Summary
Existing transformer housing welding equipment requires fixture replacement when specifications change, which is cumbersome and affects welding efficiency.
An ultrasonic welding device was designed, comprising a welding support mechanism, a fixture replacement mechanism, and a current transformer housing positioning mechanism. The positioning mechanism can be quickly repositioned by driving the fixed plate to rotate via a handle, thus simplifying the fixture replacement process.
It enables rapid switching of transformer housing specifications, simplifies operation, and improves welding efficiency.
Smart Images

Figure CN224115382U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of current transformer housing welding technology, and in particular to an ultrasonic welding device for current transformer housings. Background Technology
[0002] Instrument transformers are a general term for current transformers and voltage transformers. They reduce AC voltage and high current to values that can be directly measured by instruments, making it convenient for instruments to measure directly. The casing of instrument transformers is usually welded using ultrasonic welding equipment.
[0003] Before welding, the housing of the current transformer needs to be positioned using a fixture to ensure welding accuracy. However, when the specifications of the current transformer housing to be welded change, the operator needs to disassemble the original positioning fixture and replace it with a new one, which is a cumbersome operation and has a significant impact on welding efficiency.
[0004] Therefore, it is necessary to invent an ultrasonic welding device for transformer housings to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide an ultrasonic welding device for current transformer housings, which can quickly complete the interchange of two sets of current transformer housing positioning mechanisms, thereby rapidly switching the specifications of the current transformer housings that can be processed. The device is easy to operate and can effectively improve welding efficiency. This solves the problem mentioned in the background art that when the specifications of the current transformer housing being welded change, the operator needs to disassemble the original positioning fixture and replace it with a new fixture, which is cumbersome and has a significant impact on welding efficiency.
[0006] According to one aspect of this disclosure, the following technical solution is provided: an ultrasonic welding device for transformer housings, comprising:
[0007] A support welding mechanism is used to perform ultrasonic welding on the housing of the current transformer.
[0008] A fixture replacement mechanism, comprising a side plate, a rotating beam, a movable shaft, a fixed plate, a handle, and a clearance groove;
[0009] Two side plates are provided, each fixedly mounted on one side of the top of the base. The rotating beam is rotatably mounted between the two side plates via a pin. The movable shaft is fixedly mounted on its front side. The fixed plate is rotatably sleeved onto the front end of the movable shaft via a bearing. The handle is fixedly mounted on the front end of the fixed plate. The clearance groove is formed on the top of the base.
[0010] Two sets of current transformer housing positioning mechanisms are respectively detachably installed on the top and bottom of the fixing plate.
[0011] According to at least one embodiment of the present disclosure, an ultrasonic welding apparatus for a transformer housing includes a base and a back plate, wherein the back plate is fixedly disposed on the rear side of the top of the base.
[0012] According to at least one embodiment of the ultrasonic welding equipment for a transformer housing, the bearing welding mechanism further includes a drive member and an ultrasonic welding assembly, wherein the drive member is fixedly disposed on the top of the back plate and the ultrasonic welding assembly is fixedly disposed on the bottom end of the output shaft of the drive member.
[0013] According to at least one embodiment of the ultrasonic welding equipment for transformer housings disclosed herein, any group of transformer housing positioning mechanisms includes a fixture plate, the top of which is provided with a positioning groove, and the positioning grooves in the two groups of transformer housing positioning mechanisms have different specifications.
[0014] According to at least one embodiment of the ultrasonic welding equipment for transformer housings disclosed herein, the fixture plate has four fixing screw holes at its top corners, and fixing bolts are provided inside the four fixing screw holes. The fixture plate is detachably connected to the fixing plate by the four fixing bolts.
[0015] The technical effects and advantages of this utility model are as follows:
[0016] This invention features a fixture replacement mechanism. When switching the current transformer housing positioning mechanism is required, the fixing plate is lifted by the handle. The fixing plate rotates the fixing screw hole and positioning groove around the pin shaft. Then, the handle is turned, causing the fixing plate to rotate at the front end of the movable shaft. As the fixing plate rotates, it drives the two sets of current transformer housing positioning mechanisms to switch positions. After lowering the handle, the fixing plate drives the lower current transformer housing positioning mechanism into the recessed groove for storage. Compared with the prior art, this invention can quickly switch the positions of the two sets of current transformer housing positioning mechanisms, thereby quickly switching the specifications of the current transformer housing that can be processed. The operation is simple and can effectively improve welding efficiency. Attached Figure Description
[0017] The accompanying drawings illustrate exemplary embodiments of the present disclosure and, together with the description thereof, serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.
[0018] Figure 1 This is a schematic diagram of the overall structure of an ultrasonic welding apparatus for a transformer housing according to one embodiment of the present disclosure.
[0019] Figure 2This is a schematic diagram of a load-bearing welding mechanism for an ultrasonic welding equipment for a transformer housing, according to one embodiment of the present disclosure.
[0020] Figure 3 This is a schematic diagram of a fixture replacement mechanism and a current transformer housing positioning mechanism for an ultrasonic welding equipment for a current transformer housing, according to one embodiment of the present disclosure.
[0021] The specific labels in the attached figures are as follows:
[0022] 1. Load-bearing welding mechanism; 11. Base; 12. Back plate; 13. Drive unit; 14. Ultrasonic welding assembly;
[0023] 2. Fixture replacement mechanism; 21. Side plate; 22. Rotating beam; 23. Movable shaft; 24. Fixed plate; 25. Handle; 26. Clearance groove;
[0024] 3. Current transformer housing positioning mechanism; 31. Fixture plate; 32. Positioning groove; 33. Fixing screw hole; 34. Fixing bolt. Detailed Implementation
[0025] For descriptive purposes, this disclosure may use spatial relative terms such as “below,” “under,” “below,” “down,” “above,” “above,” “higher,” and “side (e.g., in a “sidewall”)” to describe the relationship between one component and another component as shown in the accompanying drawings. In addition to the orientations depicted in the drawings, the spatial relative terms are also intended to encompass different orientations of the device during use, operation, and / or manufacture. For example, if the device in the drawings is flipped, a component described as “below” or “under” other components or features would subsequently be positioned “above” said other components or features. Thus, the exemplary term “below” can encompass both “above” and “below” orientations. Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or in other orientations), thus interpreting the spatial relative descriptive terms used herein accordingly.
[0026] Figure 1 This is a schematic diagram of the overall structure of an ultrasonic welding apparatus for a transformer housing according to one embodiment of the present disclosure.
[0027] Figure 2 This is a schematic diagram of the structure of a support welding mechanism 1 for an ultrasonic welding equipment for a transformer housing, according to one embodiment of the present disclosure.
[0028] Figure 3 This is a schematic diagram of the fixture replacement mechanism 2 and the transformer housing positioning mechanism 3 for an ultrasonic welding equipment for transformer housing according to one embodiment of the present disclosure.
[0029] like Figures 1-3 As shown, the ultrasonic welding equipment for transformer housing disclosed herein may include components such as a bearing welding mechanism 1, a fixture replacement mechanism 2, and a transformer housing positioning mechanism 3.
[0030] like Figure 2 As shown in this disclosure, the bearing welding mechanism 1 includes a base 11, a back plate 12, a drive member 13, and an ultrasonic welding assembly 14. The back plate 12 is fixedly disposed on the rear side of the top of the base 11, the drive member 13 is fixedly disposed on the top of the back plate 12, and the ultrasonic welding assembly 14 is fixedly disposed at the bottom end of the output shaft of the drive member 13.
[0031] The ultrasonic welding assembly 14 mainly includes an ultrasonic welding mechanism and an ultrasonic generator. Its working principle is that the welding part generates high-frequency vibration, and the two parts are welded together by sufficient frictional heat. This is existing technology and not an improvement of the technical solution of this application, so it will not be described in detail here.
[0032] like Figure 2 As shown, in a preferred embodiment, the fixture replacement mechanism 2 includes a side plate 21, a rotating beam 22, a movable shaft 23, a fixed plate 24, a handle 25, and a clearance groove 26. There are two side plates 21, which are fixedly mounted on the top sides of the base 11. The rotating beam 22 is rotatably mounted between the two side plates 21 via a pin. The movable shaft 23 is fixedly mounted on the front side of the movable shaft 23. The fixed plate 24 is rotatably mounted on the front end of the movable shaft 23 via a bearing. The handle 25 is fixedly mounted on the front end of the fixed plate 24. The clearance groove 26 is opened on the top of the base 11.
[0033] Therefore, when it is necessary to switch the current transformer housing positioning mechanism 3, the fixing plate 24 is lifted by the handle 25. The fixing plate 24 drives the fixing screw hole 33 and the positioning groove 32 to rotate around the pin shaft. Then, the handle 25 is turned, which in turn drives the fixing plate 24 to rotate at the front end of the movable shaft 23. When the fixing plate 24 rotates, it drives the two sets of current transformer housing positioning mechanisms 3 to complete the exchange. Then, the handle 25 is lowered, and the fixing plate 24 drives the lower current transformer housing positioning mechanism 3 into the inner side of the clearance groove 26 for storage. Compared with the prior art, the exchange of the two sets of current transformer housing positioning mechanisms 3 can be completed quickly, thereby quickly switching the specifications of the current transformer housing that can be processed. The operation is simple and can effectively improve the welding efficiency.
[0034] like Figure 3As shown in this disclosure, any set of current transformer housing positioning mechanisms 3 includes a fixture plate 31, wherein a positioning groove 32 is provided on the top of the fixture plate 31, the positioning groove 32 in the two sets of current transformer housing positioning mechanisms 3 are of different specifications, and a fixing screw hole 33 is provided at each of the four corners of the top of the fixture plate 31, and a fixing bolt 34 is provided on the inner side of each of the four fixing screw holes 33. The fixture plate 31 is detachably connected to the fixing plate 24 by the four fixing bolts 34.
[0035] By setting up the bearing welding mechanism 1 and the current transformer housing positioning mechanism 3, the front and rear housings of the current transformer housing are aligned and placed into the positioning groove 32 for positioning before welding begins. After positioning, the driving component 13 drives the ultrasonic welding assembly 14 to continuously descend until the welding head of the ultrasonic welding assembly 14 presses on the top of the current transformer housing. Subsequently, as the ultrasonic welding assembly 14 works, the front and rear housings of the current transformer housing are welded together.
[0036] It should also be noted that any content not described in detail in this specification is prior art known to those skilled in the art.
[0037] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.
Claims
1. An ultrasonic welding device for transformer housings, characterized in that, include: A support welding mechanism is used to perform ultrasonic welding on the housing of the current transformer. A fixture replacement mechanism, comprising a side plate, a rotating beam, a movable shaft, a fixed plate, a handle, and a clearance groove; Two side plates are provided, each fixedly mounted on one side of the top of the base. The rotating beam is rotatably mounted between the two side plates via a pin. The movable shaft is fixedly mounted on its front side. The fixed plate is rotatably sleeved onto the front end of the movable shaft via a bearing. The handle is fixedly mounted on the front end of the fixed plate. The clearance groove is formed on the top of the base. Two sets of current transformer housing positioning mechanisms are respectively detachably installed on the top and bottom of the fixing plate.
2. The ultrasonic welding equipment for transformer housings according to claim 1, characterized in that: The load-bearing welding mechanism includes a base and a back plate, with the back plate fixedly disposed on the rear side of the top of the base.
3. The ultrasonic welding equipment for transformer housings according to claim 2, characterized in that: The load-bearing welding mechanism also includes a drive component and an ultrasonic welding assembly. The drive component is fixedly mounted on the top of the back plate, and the ultrasonic welding assembly is fixedly mounted on the bottom end of the output shaft of the drive component.
4. The ultrasonic welding equipment for transformer housings according to claim 3, characterized in that: Each set of the current transformer housing positioning mechanism includes a fixture plate, and the top of the fixture plate is provided with a positioning groove. The positioning grooves in the two sets of current transformer housing positioning mechanisms have different specifications.
5. The ultrasonic welding equipment for transformer housings according to claim 4, characterized in that: The fixture plate has four fixing screw holes at the top corners, and fixing bolts are provided inside the four fixing screw holes. The fixture plate is detachably connected to the fixing plate by the four fixing bolts.