Coil turn-to-turn insulating layer thickness laser on-line detection tool
By designing a coil testing fixture with adjustable length and width, the problem of insufficient adaptability of existing fixtures was solved, achieving efficient coil testing and improving production efficiency and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANHANCHENG PRECISION TECHNOLOGY (SUZHOU) CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-05-19
AI Technical Summary
Existing coil testing fixtures can only be used for specific sizes and cannot adapt to coils of different sizes. Frequent fixture changes result in low production efficiency and affect the production schedule.
A laser online inspection fixture for the thickness of the inter-turn insulation layer of a coil was designed, comprising an adjustment component, a limiting component, and a shaping component. The adjustment component enables the adjustable length and width of the mold cavity, the limiting component prevents shaking, and the shaping component provides internal and external limiting for the coil, enabling rapid adaptation to the inspection of coils of different sizes.
It improved production efficiency, reduced the frequency of tool disassembly and assembly, reduced labor intensity, enabled rapid adaptation to coils of different sizes, and avoided production line downtime.
Smart Images
Figure CN224262449U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coil testing fixture technology, specifically a laser online testing fixture for the thickness of the inter-turn insulation layer of a coil. Background Technology
[0002] In the manufacturing of electrical equipment such as motors, transformers, and reactors, coils are core components. The quality of the inter-turn insulation layer directly affects the electrical performance and reliability of the equipment. Insufficient insulation layer thickness can easily lead to inter-turn short circuits, causing equipment failure or even burnout; excessive thickness wastes materials, increases costs, and affects the compactness and heat dissipation of the equipment.
[0003] Existing tooling can only be used for coils of specific sizes. If the coils are of different sizes, the tooling cannot be used. Furthermore, when processing coils of various lengths, it is necessary to frequently change the appropriate tooling. Each change requires disassembly, installation, and debugging, which wastes a lot of time and reduces production efficiency. For example, in assembly line production, frequent tooling changes can cause production line stoppages and affect the overall production rhythm. Therefore, we propose a laser online detection tooling for the thickness of the coil inter-turn insulation layer. Utility Model Content
[0004] The purpose of this invention is to provide a laser online detection fixture for the thickness of the inter-turn insulation layer of a coil, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a laser online detection fixture for the thickness of the inter-turn insulation layer of a coil, comprising a mold box, a coil body with an inner cavity inside the mold box and an outer sleeve of the mold box, and further comprising:
[0006] An adjustment assembly includes a hydraulic cylinder disposed within an inner cavity, a push rod connected to the output end of the hydraulic cylinder, a push block connected to the end of the push rod away from the hydraulic cylinder, an end block disposed on the inner wall of the inner cavity, and a connecting seat disposed on the end block;
[0007] A limiting component, comprising a limiting plate disposed inside the inner cavity, a sliding block disposed on the limiting plate, and the sliding block being connected to a push block.
[0008] Furthermore, there is a gap between the limiting plate and the inner wall of the cavity, and one end of the sliding block is slidably connected to the gap.
[0009] The above technical solution is adopted: by setting a limit component, the movement of the push block is limited to prevent shaking and deviation during the adjustment process.
[0010] Furthermore, the mold box is designed to be retractable, and the inner cavity is made of an elastic material.
[0011] By adopting the above technical solution: through the above settings, the length of the mold box and the inner cavity can be easily changed, and during the shrinkage process, the inner cavity can be automatically reset by the elastic force after shrinkage.
[0012] Furthermore, a shaping component is provided on the top of the mold box, the shaping component includes a welding connector, and a middle block is provided on the welding connector.
[0013] The above technical solution is adopted: by setting a shaping component, the coil after it is stretched out is limited.
[0014] Furthermore, a fixing plate is provided on the side of the mold box near the coil body, and the welding connector and the fixing plate are snapped into the inner cavity.
[0015] The above technical solution is adopted: through the above settings, the coil is shaped from the inside.
[0016] Furthermore, an upper pressure ring is provided on the top of the mold box, and the upper pressure ring is slidably connected to the mold box.
[0017] By adopting the above technical solution, by setting an upper pressure ring and pressing it down, the external shape and positioning of the coil can be defined and limited.
[0018] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0019] In this invention, by setting an adjustment component, the length of the mold cavity can be adjusted, improving efficiency, reducing repeated disassembly and assembly of tools, reducing labor intensity, and improving quality. Through process monitoring, the clamping size of the fixture is monitored in real time, solving the problem that the tooling in the prior art can only be used for coils of specific sizes and specifications. If different coils have different sizes, the tooling cannot be used. Moreover, when processing coils of various lengths and specifications, it is necessary to frequently change the appropriate tooling. Each change requires disassembly, installation, and debugging, which wastes a lot of time and reduces production efficiency. For example, in assembly line production, frequent tooling changes can cause production line stoppages and affect the overall production rhythm. Attached Figure Description
[0020] Figure 1 This is a front view of a laser online detection fixture for the thickness of the insulation layer between coil turns.
[0021] Figure 2 This is a side view of a laser online detection fixture for the thickness of the inter-turn insulation layer of a coil.
[0022] Figure 3 This is a structural diagram of a shaping component in a laser online detection fixture for the thickness of the insulation layer between coil turns.
[0023] Figure 4 This is a breakdown diagram of a laser online detection fixture for the thickness of the inter-turn insulation layer of a coil.
[0024] Figure 5 for Figure 1 Enlarged view of point A in the middle.
[0025] Numbering on the map:
[0026] 1. Mold box; 2. Inner cavity; 3. Coil body;
[0027] 4. Adjustment assembly; 41. Hydraulic cylinder; 42. Push rod; 43. Push block; 44. End block; 45. Connecting seat;
[0028] 5. Limiting component; 51. Limiting plate; 52. Sliding block;
[0029] 6. Shaping components; 61. Welded connectors; 62. Fixing plate; 63. Middle block; 64. Upper pressure ring. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] like Figure 1 and Figure 5 As shown, this utility model provides a technical solution: a laser online detection fixture for the thickness of the inter-turn insulation layer of a coil, including a mold box 1, an inner cavity 2 inside the mold box 1, and a coil body 3 sleeved outside the mold box 1, and further including:
[0032] Adjustment component 4 includes a hydraulic cylinder 41 disposed in the inner cavity 2. The output end of the hydraulic cylinder 41 is connected to a push rod 42. The end of the push rod 42 away from the hydraulic cylinder 41 is connected to a push block 43. An end block 44 is disposed on the inner wall of the inner cavity 2. A connecting seat 45 is disposed on the end block 44.
[0033] The limiting component 5 includes a limiting plate 51 disposed inside the inner cavity 2, a sliding block 52 disposed on the limiting plate 51, the sliding block 52 being connected to the push block 43, and a gap existing between the limiting plate 51 and the inner wall of the inner cavity 2, with one end of the sliding block 52 slidably connected to the gap.
[0034] Specifically, a length sensor is installed inside the inner cavity 2. When the hydraulic cylinder 41 works, it drives the push rod 42 to move, and the push rod 42 drives the push block 43 to move. During the movement, the push block 43 will simultaneously drive the sliding block 52 to slide in the gap between the limiting plate 51 and the inner wall of the inner cavity 2, thereby limiting the push block 43 and realizing the extension and retraction of the inner cavity 2 in the length direction. When the mold length reaches the set value, the length sensor sends a command, and the hydraulic system stops the oil pump, thereby realizing the adjustment in the length direction. When the hydraulic cylinder 41 works, it pushes the six outer top plates of the mold outward, thereby realizing the extension and retraction of the inner cavity 2 in the width direction. When the mold width reaches the set value, the length sensor sends a command, and the hydraulic system stops the oil pump, thereby realizing the adjustment in the width direction.
[0035] Furthermore, such as Figure 1 As shown: The mold box 1 is designed to be telescopic, and the inner cavity 2 is made of elastic material. With the above settings, the length and width of the mold box 1 and the inner cavity 2 can be easily changed. During the shrinking process, the inner cavity 2 can automatically return to its original position through the elastic force after shrinking.
[0036] The above solutions also have the problem that the stretched coil cannot be shaped and limited, such as... Figures 2-4 As shown: A shaping component 6 is provided on the top of the mold box 1. The shaping component 6 includes a welding connector 61. A middle block 63 is provided on the welding connector 61. A fixing plate 62 is provided on the side of the mold box 1 near the coil body 3. The welding connector 61 and the fixing plate 62 are snapped into the inner cavity 2. The welding connector 61 and the middle block 63 are inserted into the inner cavity 2 and pressed down to shape and limit the coil from the inside.
[0037] The above solutions also have the limitation of not being able to externally define and limit the coil, such as... Figures 2-4 As shown: The top of the mold box 1 is provided with an upper pressure ring 64, which is slidably connected to the mold box 1. The upper pressure ring 64 is placed on the top of the mold box 1 and then pressed down so that it slides down at the extension plate on the mold box 1 until it contacts the outside of the coil. Then the outside of the coil is shaped and limited.
[0038] The working principle provided by this utility model is as follows: Figures 1-5As shown: A length sensor is installed inside the inner cavity 2. When the hydraulic cylinder 41 works, it drives the push rod 42 to move, and the push rod 42 drives the push block 43 to move. During the movement, the push block 43 simultaneously drives the sliding block 52 to slide in the gap between the limiting plate 51 and the inner wall of the inner cavity 2, thereby limiting the push block 43 and realizing the extension and retraction of the length of the inner cavity 2 of the mold. When the mold length reaches the set value, the length sensor sends a command, and the hydraulic system stops the oil pump, thereby realizing the adjustment of the length direction. When the hydraulic cylinder 41 works, it pushes the six outer top plates of the mold outward, thereby realizing the extension and retraction of the mold. The inner cavity 2 has a width direction extension and retraction. When the mold width reaches the set value, the length sensor sends a command, and the hydraulic system stops the oil pump, thereby realizing the width direction adjustment. During the shrinkage process, the inner cavity 2 can automatically reset by the elastic force after shrinkage. Then, the welded connector 61 and the middle block 63 are inserted into the inner cavity 2 and pressed down to shape and limit the coil from the inside. Finally, the upper pressure ring 64 is placed on the top of the mold box 1 and then pressed down to make it slide down at the extension plate on the mold box 1 until it contacts the outside of the coil. Then, the outside of the coil is shaped and limited.
[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A laser online detection fixture for the thickness of the inter-turn insulation layer of a coil, comprising a mold box (1), an inner cavity (2) disposed within the mold box (1), and a coil body (3) sleeved outside the mold box (1), characterized in that, Also includes: Adjustment component (4), the adjustment component (4) includes a hydraulic cylinder (41) disposed in the inner cavity (2), the output end of the hydraulic cylinder (41) is connected to a push rod (42), the end of the push rod (42) away from the hydraulic cylinder (41) is connected to a push block (43), the inner wall of the inner cavity (2) is provided with an end block (44), and a connecting seat (45) is provided on the end block (44); The limiting component (5) includes a limiting plate (51) disposed inside the inner cavity (2), and a sliding block (52) is disposed on the limiting plate (51), and the sliding block (52) is connected to the push block (43).
2. The laser online detection fixture for the thickness of the coil inter-turn insulation layer according to claim 1, characterized in that: There is a gap between the limiting plate (51) and the inner wall of the inner cavity (2), and one end of the sliding block (52) is slidably connected to the gap.
3. The laser online detection fixture for the thickness of the coil inter-turn insulation layer according to claim 1, characterized in that: The mold box (1) is designed to be retractable, and the inner cavity (2) is made of elastic material.
4. The laser online detection fixture for the thickness of the coil inter-turn insulation layer according to claim 1, characterized in that: The top of the mold box (1) is provided with a shaping component (6), the shaping component (6) includes a welding connector (61), and a middle block (63) is provided on the welding connector (61).
5. The laser online detection fixture for the thickness of the coil inter-turn insulation layer according to claim 4, characterized in that: A fixing plate (62) is provided on the side of the mold box (1) near the coil body (3), and the welding connector (61) and the fixing plate (62) are snapped into the inner cavity (2).
6. The laser online detection fixture for the thickness of the coil inter-turn insulation layer according to claim 1, characterized in that: The mold box (1) is provided with an upper pressure ring (64) on the top, and the upper pressure ring (64) is slidably connected to the mold box (1).