Die casting flatness testing fixture
By designing a die-casting flatness inspection fixture with adjustable sliding guide rails and inspection columns, the problem of inconsistent flatness caused by die-casting deformation is solved, achieving efficient and low-cost inspection. It is applicable to die-castings of various specifications and meets the requirements of large-scale production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN SANRUI DIE CASING CO LTD
- Filing Date
- 2025-07-04
- Publication Date
- 2026-06-26
AI Technical Summary
The existing four-leg mounting design of die-cast parts is prone to deformation and twisting during the manufacturing process, resulting in inconsistent flatness, which affects the firmness of screw connections. In addition, the special inspection tools are expensive and cumbersome to maintain, making it difficult to meet the needs of large-scale production.
Design a die casting flatness inspection fixture, including a base plate and multiple guide rails. The guide rails can be slidably adjusted in position and are equipped with inspection columns and positioning columns. It is suitable for the inspection of die castings of various specifications and models. The position adjustment is achieved by using arc-shaped slides and sliding blocks. Combined with equal height inspection columns and feeler gauges, the inspection accuracy is ensured.
It enables rapid and convenient flatness inspection of multi-specification die-cast parts, reduces inspection costs, improves inspection efficiency and product quality, and meets the needs of large-scale production.
Smart Images
Figure CN224415996U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of die casting inspection technology, and in particular to a die casting flatness inspection tool. Background Technology
[0002] Currently, die-cast housings for electronic control systems in new energy vehicles typically employ a four-legged mounting design, requiring all four mounting legs to be on the same plane to ensure overall vehicle installation reliability. However, due to inherent instability in the die-casting process, the four mounting legs are prone to deformation and twisting during manufacturing, resulting in inconsistent flatness. This affects the strength of screw connections and can even lead to quality issues such as loose screws. To overcome this deficiency, a dedicated inspection tool needs to be developed for each die-cast part to check its flatness. Given the wide variety of die-cast part models, this approach results in high tooling costs and cumbersome maintenance and replacement, making it difficult to meet the needs of large-scale production. Utility Model Content
[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a die-casting flatness inspection tool, which can arbitrarily adjust the position of the inspection column, is suitable for inspecting die-castings of various specifications and models, quickly detects whether the mounting feet of die-castings are deformed, has high versatility, is easy to maintain, improves inspection efficiency, and reduces inspection costs.
[0004] This utility model provides a die-casting flatness inspection fixture, including a base plate and multiple guide rails. The base plate has multiple arc-shaped grooves evenly distributed around its circumference. The first end of each guide rail is mounted in the central region of the base plate, and the second end of each guide rail is connected to one of the arc-shaped grooves. The guide rails are slidable within the arc-shaped grooves with their first ends as the center point. The multiple guide rails are arranged in a circular array, and each guide rail has a sliding inspection post with the same height. The upper surfaces of the multiple inspection posts form a horizontal inspection plane.
[0005] According to some embodiments of the present invention, a sliding block is connected to the second end of the guide rail, and the guide rail slides in the arc-shaped groove through the sliding block.
[0006] According to some embodiments of this utility model, the sliding block is a T-shaped block.
[0007] According to some embodiments of the present invention, a pressure strip is embedded in the guide rail, and the pressure strip presses against the lower part of the inspection column.
[0008] According to some embodiments of this utility model, the pressure strip is a rigid rubber strip.
[0009] According to some embodiments of this utility model, the number of guide rails is four, and the four guide rails are respectively distributed in the four quadrants of the base plate.
[0010] According to some embodiments of the present invention, the base plate is provided with a plurality of mounting holes, which are distributed on the base plate.
[0011] According to some embodiments of the present invention, the die-casting flatness inspection tool further includes a plurality of positioning posts, which are installed in the mounting holes and form a limiting area.
[0012] According to some embodiments of the present invention, the positioning column includes a positioning block and a column body connected to each other, and the column body is mounted on the positioning block.
[0013] According to some embodiments of the present invention, the positioning block is provided with a positioning groove, and a threaded fastener is installed in the positioning groove, so that the positioning post is installed on the base plate by the threaded fastener.
[0014] This utility model has at least the following beneficial effects:
[0015] This die-casting flatness inspection fixture includes a base plate and multiple guide rails. The base plate has multiple arc-shaped grooves evenly distributed around its circumference. The first end of each guide rail is mounted in the central area of the base plate, and the second end is connected to one of the arc-shaped grooves. Each guide rail can slide within the arc-shaped groove with its first end as the fulcrum. The multiple guide rails are arranged in a circular array, and inspection posts are slidably mounted within each guide rail. By sliding the guide rails within the arc-shaped grooves and the inspection posts within the guide rails, the installation positions of the guide rails and inspection posts can be adjusted according to the specifications and dimensions of the die-casting. This fixture is suitable for inspecting die-castings of various specifications and models. Using inspection posts of equal height, the flatness of the die-casting surface can be quickly inspected through the gap between the inspection post and the inspection surface. The fixture features a simple structure, convenient operation, high versatility, and easy maintenance, improving inspection efficiency, reducing inspection costs, thereby improving product quality and meeting the needs of large-scale production.
[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0018] Figure 1 This is a schematic diagram of the structure of the die-casting flatness inspection tool according to an embodiment of the present utility model;
[0019] Figure 2 for Figure 1 A schematic diagram of the structure of the base plate of the die-casting flatness inspection tool is shown;
[0020] Figure 3 for Figure 1 One of the schematic diagrams of the guide rail structure of the die-casting flatness inspection tool is shown;
[0021] Figure 4 for Figure 1 The second schematic diagram shows the structure of the guide rail of the die-casting flatness inspection tool;
[0022] Figure 5 for Figure 1 A schematic diagram of the positioning column of the die-casting flatness inspection tool is shown;
[0023] Figure 6 This is a schematic diagram of the die casting flatness inspection tool and the die casting itself, according to an embodiment of the present invention.
[0024] Figure label:
[0025] Base plate 100, arc-shaped slide groove 110, mounting hole 120, guide rail 200, inspection column 210, sliding block 220, positioning column 300, positioning block 310, positioning groove 311, column body 320, die casting 400, mounting foot 410. Detailed Implementation
[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0027] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0028] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first," "second," etc., are used in the description, they are only for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.
[0029] In the description of this utility model, unless otherwise explicitly defined, the terms "setting", "installing", "connecting", "linking", etc. should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in combination with the specific content of the technical solution.
[0030] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments:
[0031] Please refer to Figures 1 to 3 This embodiment discloses a die-casting flatness inspection fixture, including a base plate 100 and guide rails 200. The base plate 100 is provided with multiple arc-shaped grooves 110, which are evenly distributed around the circumference of the base plate 100. The first end of the guide rail 200 is installed in the central area of the base plate 100, and the second end of the guide rail 200 is connected to the arc-shaped groove 110. The guide rail 200 can slide within the arc-shaped groove 110 with its first end as the fulcrum. Inspection posts 210 are slidably arranged within each of the multiple guide rails 200, which are arranged in a circular array. The height of the multiple inspection posts 210 is the same, and the upper surface of the multiple inspection posts 210 forms a horizontal inspection plane. By sliding the guide rails 200 within the arc-shaped grooves 110 and the inspection posts 210 within the guide rails 200, the installation position of the inspection posts 210 can be adjusted according to the specifications and dimensions of the die-casting, making it suitable for inspecting die-castings of various specifications and models. The inspection column 210 can be moved to any position on the horizontal plane of the base plate 100 according to the position of the mounting feet 410 of each die-cast part 400. By using inspection columns 210 of equal height and the gap between the inspection column 210 and the inspection surface of the die-cast part 400, the flatness of the inspection surface of the die-cast part 400 can be quickly detected. It has a simple structure, is easy to operate, has high versatility, and is easy to maintain, thereby improving inspection efficiency, reducing inspection costs, and thus improving product quality.
[0032] Please refer to Figure 3 The second end of the guide rail 200 is connected to a sliding block 220. The guide rail 200 slides in the arc-shaped groove 110 through the sliding block 220, thereby adjusting the position of the inspection column 210 to adapt to die-cast parts 400 of different specifications and sizes.
[0033] Please refer to Figure 3The sliding block 220 is a T-shaped block. The first end of the sliding block 220 is inserted into the arc-shaped slide groove 110, and the second end of the sliding block 220 is connected to the guide rail 200. The guide rail 200 slides in the arc-shaped slide groove 110 through the sliding block 220. The T-shaped block ensures that the sliding block 220 is not easy to fall out of the arc-shaped slide groove 110.
[0034] Please refer to Figure 3 A pressure strip 230 is embedded in the guide rail 200, which presses against the lower part of the inspection column 210. The pressure strip 230 is a hard rubber strip. After the inspection column 210 is moved to the appropriate position, the screws at both ends of the guide rail 200 are tightened, and the pressure strip 230 inside the guide rail 200 will press down on the inspection column 210 to prevent the inspection column 210 from shifting during use.
[0035] Please refer to Figure 1 There are four guide rails 200, which are distributed in the four quadrants of the base plate 100. The guide rails 200 slide in the arc-shaped groove 110 via the sliding block 220, and then the inspection column 210 is moved to the appropriate position in the guide rails 200, thereby adjusting the installation position of the positioning column 300 according to the specifications and dimensions of the die-cast part 400.
[0036] Please refer to Figure 1 The base plate 100 is provided with multiple mounting holes 120, which are distributed on the base plate 100. By switching different mounting holes 120, the installation position of the positioning post 300 can be adjusted to accommodate die-cast parts 400 of different specifications and sizes. It should be noted that the base plate 100 needs to be enlarged to accommodate the dimensions of various die-cast parts 400.
[0037] Please refer to Figure 1 The die-casting flatness inspection tool also includes multiple positioning posts 300, which are installed in the mounting holes 120, and the multiple positioning posts 300 form a limiting area.
[0038] Please refer to Figure 5 The positioning column 300 includes a positioning block 310 and a column 320 connected to each other. The column 320 is mounted on the positioning block 310 and the positioning block 310 is used to mount the column 320 on the base plate 100.
[0039] Please refer to Figure 5 The positioning block 310 is provided with a positioning groove 311, in which a threaded fastener is installed. The positioning pin 300 is mounted on the base plate 100 by the threaded fastener. The positioning pin 300 is fixed to the base plate 100 by the threaded fastener. Loosening the threaded fastener allows the positioning pin 300 to move along the positioning groove 311, facilitating the adjustment of the installation position of the positioning pin 300 and adapting it to die-cast parts 400 of different specifications and sizes.
[0040] Please refer to Figure 6In some embodiments, mounting feet 410 are provided on both sides of the die-cast part 400, specifically, the number of mounting feet 410 is 4.
[0041] During inspection, first, according to the specifications and dimensions of the die-cast part 400, slide the guide rail 200 in the arc-shaped groove 110 via the sliding block 220, and then move the inspection post 210 in the guide rail 200 to a suitable position; the installation position of the positioning post 300 can also be adjusted according to the specifications and dimensions of the die-cast part 400. Place the die-cast part 400 on the die-cast part flatness inspection fixture, with the outer wall of the die-cast part 400 abutting against the positioning post 300, and the mounting feet 410 pressing against the inspection post 210. Because the inspection post 210 under the mounting feet 410 is a post of equal height, try inserting a feeler gauge between the mounting feet 410 and the inspection post 210. If one of the corners is deformed, the feeler gauge can be inserted, indicating that the four mounting feet 410 of the die-cast part 400 are not on the same plane, and the mounting feet 410 of the die-cast part 400 need to be leveled. For example, a feeler gauge with a thickness of 0.3 mm is used for inspection. The feeler gauge is inserted between the mounting foot 410 and the inspection post 210 of the die casting 400 to inspect the flatness of the die casting 400. If the flatness is less than 0.30 mm, it is within the acceptable range of the product. Otherwise, the die casting 400 needs to be leveled.
[0042] The inspection column 210 can be moved to any position on the horizontal plane of the base plate 100 according to the position of the mounting feet 410 of each die-casting part 400. Using inspection columns 210 of equal height, the flatness of the inspection surface of the die-casting part 400 can be quickly detected through the gap between the inspection column 210 and the inspection surface of the die-casting part 400. This die-casting part flatness inspection tool can quickly detect the flatness of the die-casting part 400, and can quickly detect die-casting parts 400 that have deformed during the casting process, effectively preventing defective products from flowing out. It has a simple structure, is easy to operate, has high versatility, and is easy to maintain. It only needs to be used with a standard feeler gauge for inspection and is not limited by the inspection space. It improves inspection efficiency, reduces inspection costs, thereby improving product quality and meeting the needs of large-scale production.
[0043] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A flatness gauge for die castings, characterised in that, include: The base plate (100) is provided with a plurality of arc-shaped sliding grooves (110), which are evenly distributed around the circumference of the base plate (100); Multiple guide rails (200) are provided. The first end of each guide rail (200) is installed in the central area of the base plate (100), and the second end of each guide rail (200) is connected in the arc-shaped slide groove (110). Each guide rail (200) can slide in the arc-shaped slide groove (110) with its first end as the center fulcrum. The multiple guide rails (200) are arranged in a ring array. Each of the multiple guide rails (200) is provided with a test post (210). The height of the multiple test posts (210) is the same, and the upper surface of the multiple test posts (210) forms a horizontal detection plane.
2. The flatness gauge for die castings according to claim 1, wherein The second end of the guide rail (200) is connected to a sliding block (220), and the guide rail (200) slides in the arc-shaped groove (110) through the sliding block (220).
3. The planarity gauge for die castings according to claim 2, wherein The sliding block (220) is a T-shaped block.
4. The planarity gauge for die castings according to claim 1, wherein A pressure strip (230) is embedded in the guide rail (200), and the pressure strip (230) presses against the lower part of the inspection column (210).
5. The planarity gauge for die castings according to claim 4, wherein The pressure strip (230) is a hard rubber strip.
6. The flatness gauge for die castings according to claim 1 or 5, wherein The number of guide rails (200) is 4, and the 4 guide rails (200) are respectively distributed in the four quadrants of the base plate (100).
7. The planarity gauge for die castings according to claim 1, wherein The base plate (100) is provided with a plurality of mounting holes (120), which are distributed on the base plate (100).
8. The planarity gauge for die castings according to claim 7, wherein It also includes a plurality of positioning posts (300), which are installed in the mounting holes (120) and form a limiting area.
9. The planarity gauge for die castings according to claim 8, wherein The positioning column (300) includes a positioning block (310) and a column (320) connected to each other, and the column (320) is mounted on the positioning block (310).
10. The die-casting flatness inspection tool according to claim 9, characterized in that, The positioning block (310) is provided with a positioning groove (311), and a threaded fastener is installed in the positioning groove (311) to install the positioning column (300) on the base plate (100) by means of the threaded fastener.