Inspection tool for special-shaped curved surface casting

Abstract

The utility model belongs to the technical field of casting tools, and particularly relates to a special-shaped curved surface casting inspection tool which comprises a positioning assembly, the positioning assembly comprises a first positioning clamp, a second positioning clamp and a third positioning clamp, the first positioning clamp comprises a first clamping part and a second clamping part, and the third positioning clamp comprises a third clamping part and a fourth clamping part. The first positioning clamp comprises a first clamping part and a second clamping part, the inner wall of the first clamping part and the inner wall of the second clamping part are matched with the outer side wall of the upper portion of the special-shaped curved surface casting correspondingly, the second positioning clamp comprises a third clamping part and a fourth clamping part, and the inner wall of the third clamping part and the inner wall of the fourth clamping part are matched with the outer side wall of the middle of the special-shaped curved surface casting correspondingly; the third positioning clamp comprises a fifth clamping part and a sixth clamping part, and the inner wall of the fifth clamping part and the inner wall of the sixth clamping part are matched with the outer side wall of the lower portion of the special-shaped curved surface casting correspondingly. The device can quickly detect the castings when the number of the special-shaped curved surface castings is large, so that the detection time is greatly shortened, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of casting tooling, and in particular relates to an inspection tooling for special-shaped curved surface castings. Background Art

[0002] Optical products, especially infrared instruments, have some components that are irregularly shaped curved structures that are through-hole and have curved outer walls. After being cast into irregular curved castings, their curved surface shapes need to be inspected. The current inspection method is to make a correction inspection tool for the mouth of the casting and use 3D scanning and comparison to inspect the irregular curved surface shape. When using 3D scanning and comparison, further correction is made based on the comparison results, and then scanning and comparison are performed again after correction, which requires repeated scanning. When the number of castings is large, scanning and correction of each casting is too time-consuming, which increases the workload and seriously affects production efficiency.

[0003] Therefore, there is an urgent need for an inspection tool for special-shaped curved castings to solve the above problems. Utility Model Content

[0004] In view of the above-mentioned defects in the prior art, the present invention provides an inspection tool for special-shaped curved surface castings, including a positioning component, wherein the special-shaped curved surface casting is a structure that is through-through from top to bottom and the outer side wall is a curved surface, and the top and bottom edges of the special-shaped curved surface casting are provided with outwardly protruding bosses, and the positioning component includes a first positioning fixture, a second positioning fixture and a third positioning fixture, the first positioning fixture, the second positioning fixture and the third positioning fixture are arranged in sequence from top to bottom, and the three positioning fixtures are all square-structured steel plates, the first positioning fixture includes front and rear correspondingly arranged The first clamping part and the second clamping part, and the inner walls of the first clamping part and the second clamping part respectively match the front and rear outer side walls of the upper part of the special-shaped curved surface casting, the second positioning fixture includes a third clamping part and a fourth clamping part correspondingly arranged in the front and rear, and the inner walls of the third clamping part and the fourth clamping part respectively match the front and rear outer side walls of the middle part of the special-shaped curved surface casting, and the third positioning fixture includes a fifth clamping part and a sixth clamping part correspondingly arranged in the front and rear, and the inner walls of the fifth clamping part and the sixth clamping part respectively match the front and rear outer side walls of the lower part of the special-shaped curved surface casting.

[0005] Optionally, mutually fitting stepped contact surfaces are provided between the first clamping portion and the second clamping portion, between the third clamping portion and the fourth clamping portion, and between the fifth clamping portion and the sixth clamping portion.

[0006] Specifically, the fit between the two clamping parts in each positioning fixture is increased, thereby improving the detection accuracy.

[0007] Optionally, the first clamping portion and the second clamping portion, the third clamping portion and the fourth clamping portion, and the fifth clamping portion and the sixth clamping portion are fixedly connected together by fixing pins, and the fixing pins are L-shaped.

[0008] Specifically, the fixation is convenient and firm.

[0009] Optionally, the first clamping portion, the second clamping portion, the third clamping portion, the fourth clamping portion, the fifth clamping portion and the sixth clamping portion are all provided with handles.

[0010] Specifically, it is easy to take, install and place.

[0011] Optionally, the total height of the first positioning fixture, the second positioning fixture and the third positioning fixture is less than the distance between the bosses at the upper and lower ends of the special-shaped curved surface casting.

[0012] Specifically, the total height of the three positioning fixtures is slightly smaller than the distance between the bosses at the upper and lower ends of the special-shaped curved surface casting by 0.5 cm.

[0013] The present invention also includes other components that enable the normal use of a test fixture for a special-shaped curved casting, which are conventional technical means in this field. In addition, the devices or components not limited in the present invention all adopt conventional technical means in this field.

[0014] The working principle of the utility model is that, during detection, the third positioning fixture is first clamped on the outside of the lower part of the special-shaped curved surface casting, and the bottom surface of the third positioning fixture is made to rest on the boss at the bottom of the special-shaped curved surface casting, and then the second positioning fixture and the first positioning fixture are placed upward in sequence, so that the second positioning fixture and the first positioning fixture are respectively clamped on the outside of the middle and upper parts of the special-shaped curved surface casting, and then each positioning fixture is fixed with a fixing pin, so that the curved surface shape of the special-shaped curved surface casting can be detected.

[0015] The beneficial effect of the utility model is that it solves the disadvantages of the existing detection method, which is time-consuming and labor-intensive. It can quickly detect castings when there are a large number of special-shaped curved surface castings, greatly shortens the detection time, improves production efficiency, and achieves the purpose of quickly and simply detecting the appearance of batch castings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 This is an exploded view of the positioning assembly of the present invention.

[0019] Figure 3This is a structural schematic diagram of a special-shaped curved surface casting from one perspective in an embodiment of the utility model.

[0020] Figure 4 This is a structural schematic diagram of the special-shaped curved surface casting in an embodiment of the present utility model from another perspective.

[0021] In the figure: 1. boss, 2. first positioning fixture, 3. second positioning fixture, 4. third positioning fixture, 5. first clamping part, 6. second clamping part, 7. third clamping part, 8. fourth clamping part, 9. fifth clamping part, 10. sixth clamping part, 11. fixing pin, 12. handle. DETAILED DESCRIPTION

[0022] The present invention is described below in conjunction with the accompanying drawings and specific embodiments of the present invention. The description herein is intended only to explain the present invention and is not intended to limit the present invention. Based on the embodiments of the present invention, any modifications, equivalent substitutions, improvements, etc. made by those skilled in the art without creative work to all other embodiments obtained based on the embodiments of the present invention shall be included within the scope of protection of the present invention.

[0023] Example

[0024] like Figure 1-4 As shown, the embodiment of the present invention provides an inspection tool for special-shaped curved surface castings, including a positioning component, wherein the special-shaped curved surface casting is a structure that is through-through from top to bottom and the outer side wall is a curved surface, and the top and bottom edges of the special-shaped curved surface casting are provided with outwardly protruding bosses 1, the positioning component includes a first positioning fixture 2, a second positioning fixture 3 and a third positioning fixture 4, the first positioning fixture 2, the second positioning fixture 3 and the third positioning fixture 4 are arranged in sequence from top to bottom, and the three positioning fixtures are all square-structured steel plates, the first positioning fixture 2 includes a first clamping portion 5 and a second clamping portion 5 that are correspondingly arranged at the front and back. The second clamping part 6, and the inner walls of the first clamping part 5 and the second clamping part 6 respectively match the front and rear outer walls of the upper part of the special-shaped curved surface casting, the second positioning fixture 3 includes a third clamping part 7 and a fourth clamping part 8 correspondingly arranged in the front and rear, and the inner walls of the third clamping part 7 and the fourth clamping part 8 respectively match the front and rear outer walls of the middle part of the special-shaped curved surface casting, the third positioning fixture 4 includes a fifth clamping part 9 and a sixth clamping part 10 correspondingly arranged in the front and rear, and the inner walls of the fifth clamping part 9 and the sixth clamping part 10 respectively match the front and rear outer walls of the lower part of the special-shaped curved surface casting.

[0025] In addition, mutually fitting stepped contact surfaces are provided between the first clamping part 5 and the second clamping part 6, between the third clamping part 7 and the fourth clamping part 8, and between the fifth clamping part 9 and the sixth clamping part 10, which can increase the fit between the two clamping parts in each positioning fixture and improve the detection accuracy. The first clamping part 5 and the second clamping part 6, the third clamping part 7 and the fourth clamping part 8, and the fifth clamping part 9 and the sixth clamping part 10 are respectively fixed together by fixing pins 11, and the fixing pins 11 are L-shaped, which is convenient for fixing and secure. Handles 12 are provided on the first clamping part 5, the second clamping part 6, the third clamping part 7, the fourth clamping part 8, the fifth clamping part 9 and the sixth clamping part 10 for easy picking, installation and placement. The total height of the first positioning fixture 2, the second positioning fixture 3 and the third positioning fixture 4 is slightly smaller than the distance between the bosses 1 at the upper and lower ends of the special-shaped curved casting by 0.5 cm.

[0026] The working principle of the present utility model is that, during detection, the third positioning fixture 4 is first clamped on the outside of the lower part of the special-shaped curved surface casting, and the bottom surface of the third positioning fixture 4 is against the boss 1 at the bottom of the special-shaped curved surface casting, and then the second positioning fixture 3 and the first positioning fixture 2 are placed upward in sequence, so that the second positioning fixture 3 and the first positioning fixture 2 are respectively clamped on the outside of the middle and upper parts of the special-shaped curved surface casting, and then each positioning fixture is fixed with a fixing pin 11, so as to detect the curved surface shape of the special-shaped curved surface casting.

[0027] While the embodiments of the present invention have been described above, the above description is intended to be illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. An inspection tool for a special-shaped curved surface casting, comprising a positioning assembly, wherein the special-shaped curved surface casting is a structure that is through-through from top to bottom and has a curved outer wall, and the top and bottom edges of the special-shaped curved surface casting are provided with outwardly protruding bosses, characterized in that: The positioning assembly includes a first positioning fixture, a second positioning fixture and a third positioning fixture. The first positioning fixture, the second positioning fixture and the third positioning fixture are arranged in sequence from top to bottom. The first positioning fixture includes a first clamping part and a second clamping part correspondingly arranged in the front and rear, and the inner walls of the first clamping part and the second clamping part respectively match the front and rear outer walls of the upper part of the special-shaped curved surface casting. The second positioning fixture includes a third clamping part and a fourth clamping part correspondingly arranged in the front and rear, and the inner walls of the third clamping part and the fourth clamping part respectively match the front and rear outer walls of the middle part of the special-shaped curved surface casting. The third positioning fixture includes a fifth clamping part and a sixth clamping part correspondingly arranged in the front and rear, and the inner walls of the fifth clamping part and the sixth clamping part respectively match the front and rear outer walls of the lower part of the special-shaped curved surface casting.

2. The inspection tool for special-shaped curved castings according to claim 1, characterized in that: Mutually fitting stepped contact surfaces are provided between the first clamping portion and the second clamping portion, between the third clamping portion and the fourth clamping portion, and between the fifth clamping portion and the sixth clamping portion.

3. The inspection tool for special-shaped curved castings according to claim 2, characterized in that: The first clamping portion and the second clamping portion, the third clamping portion and the fourth clamping portion, and the fifth clamping portion and the sixth clamping portion are fixedly connected together by fixing pins, and the fixing pins are L-shaped.

4. The inspection tool for special-shaped curved castings according to claim 3, characterized in that: The first clamping part, the second clamping part, the third clamping part, the fourth clamping part, the fifth clamping part and the sixth clamping part are all provided with handles.

5. The inspection tool for special-shaped curved castings according to claim 4, characterized in that: The total height of the first positioning fixture, the second positioning fixture and the third positioning fixture is less than the distance between the bosses at the upper and lower ends of the special-shaped curved surface casting.

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