Go-no go gauge with exhaust structure

Abstract

The utility model relates to a go-no go gauge with an exhaust structure. The device comprises a holding part which is columnar; the go gauge part axially extends to one end of the holding part; the no-go gauge part axially extends to the other end of the holding part; the exhaust part sequentially penetrates through the no-go gauge part, the holding part and the go gauge part; wherein the exhaust part comprises at least one exhaust groove, and the shape of the exhaust groove comprises a column shape. According to the utility model, the problem that the go gauge cannot be inserted to the bottom during blind hole detection is solved. The design of the cylindrical exhaust groove enables gas to be discharged smoothly, and gas retention and internal and external pressure difference are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of go and no-go gauges, in particular to a go and no-go gauge with an exhaust structure. Background Art

[0002] In the production process, high-precision tools are required to measure the inner diameter of the workpiece. Go and no-go gauges and pneumatic gauges are two common methods, especially suitable for ensuring the accuracy of workpiece processing. Go and no-go gauges are the most effective tools for detecting the diameter of small holes in mass production. However, when measuring blind holes, due to the small matching tolerance between the go gauge and the hole, it is easy to press the gas in the hole to the bottom, causing a pressure difference, making it impossible to insert the go gauge to the bottom, which increases the difficulty and inconvenience of detection. Summary of the invention

[0003] To this end, the utility model provides a go / no-go gauge with an exhaust structure, which solves the problem of the go / no-go gauge not being smooth when in use by adding an exhaust groove on the go / no-go gauge, so that the go / no-go gauge can detect whether the aperture is qualified more effectively and quickly.

[0004] In order to solve the above technical problems, the utility model provides a go / no-go gauge with an exhaust structure, comprising:

[0005] The grip part is columnar;

[0006] A through-gauge portion extending axially from one end of the grip portion;

[0007] A stop gauge portion extending axially from the other end of the grip portion;

[0008] An exhaust portion, which sequentially passes through the stop gauge portion, the gripping portion and the through gauge portion;

[0009] Wherein, the exhaust portion includes at least one exhaust groove, and the shape of the exhaust groove includes a columnar shape.

[0010] In one embodiment of the present utility model, the stop gauge portion, the holding portion and the through gauge portion are coaxially arranged.

[0011] In one embodiment of the present utility model, the extension direction of the exhaust portion is the same as the insertion direction of the go / no-go gauge during testing.

[0012] In an embodiment of the present utility model, the exhaust portion includes an exhaust groove, and the central axis of the exhaust groove is coaxially arranged with the central axis of the go / no-go gauge.

[0013] In one embodiment of the present utility model, the exhaust portion includes a plurality of exhaust grooves, and the plurality of exhaust grooves are evenly distributed circumferentially along the central axis of the go / no-go gauge.

[0014] In one embodiment of the present invention, the column shape includes a circle or a polygon.

[0015] In one embodiment of the present invention, the column is a circle with a diameter of 1.5±0.02 mm.

[0016] In one embodiment of the present invention, the surface of the exhaust groove is coated with an anti-corrosion lubricating layer.

[0017] In one embodiment of the present invention, the anti-corrosion lubricating layer includes a nano coating.

[0018] The above technical solution of the utility model has the following advantages compared with the prior art:

[0019] The utility model discloses a go / no-go gauge with an exhaust structure. The go / no-go gauge has exhaust grooves designed on the gripping part, the go / no-go part and the no-go part, which solves the problem that the go / no-go gauge cannot be inserted to the bottom when detecting a blind hole. The cylindrical exhaust groove design allows the gas to be discharged smoothly, avoiding gas stagnation and internal and external pressure differences. The coaxial design of the go / no-go gauge or the exhaust grooves evenly distributed circumferentially and the nano-anticorrosive lubricating layer on the surface further enhance its stability, corrosion resistance and service life, ensuring a smooth and accurate measurement process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments of the utility model in combination with the accompanying drawings.

[0021] Figure 1 It is a structural schematic diagram of a go / no-go gauge with an exhaust structure of the utility model.

[0022] Figure 2 The utility model is a side view structural schematic diagram of a go / no-go gauge with an exhaust structure.

[0023] Figure 3 It is a structural schematic diagram of the go / no-go gauge with exhaust structure of the utility model during measurement.

[0024] Description of the Figures in the Specification:

[0025] 1. Grip;

[0026] 2. General regulations department;

[0027] 3. Stop regulation department;

[0028] 4. Exhaust section;

[0029] 5. Parts to be tested. DETAILED DESCRIPTION

[0030] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0031] In the present invention, if directions (up, down, left, right, front and back) are described, it is only for the convenience of describing the technical solution of the present invention, and does not indicate or imply that the technical features referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0032] In the present utility model, "several" means one or more, "multiple" means more than two, "greater than", "less than", "exceed" and the like are understood to exclude the number itself; "above", "below", "within" and the like are understood to include the number itself. In the description of the present utility model, if there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0033] In the present invention, unless otherwise clearly defined, the words "set", "install", "connect" and the like should be understood in a broad sense, for example, they can be directly connected or indirectly connected through an intermediate medium; they can be fixedly connected or detachably connected or integrally formed; they can be mechanically connected or electrically connected or able to communicate with each other; they can be the internal connection of two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0034] Reference Figures 1 to 3 As shown, the utility model is a go / no-go gauge with an exhaust structure, comprising:

[0035] The gripping part 1 is columnar and is easy for the operator to grip, ensuring that the use of the go / no-go gauge is stable and reliable and not easy to slip off;

[0036] The through gauge part 2 axially extends to one end of the gripping part 1 and can accurately measure whether the inner hole diameter meets the specification;

[0037] A stop gauge portion 3 axially extending from the other end of the grip portion 1;

[0038] The exhaust portion 4 sequentially penetrates the stop gauge portion 3, the gripping portion 1 and the through gauge portion 2;

[0039] The exhaust portion 4 includes at least one exhaust groove, and the shape of the exhaust groove includes a columnar shape.

[0040] The cylindrical exhaust groove design can guide the gas to be discharged more smoothly, effectively avoid gas retention, and can discharge the gas smoothly, with a more stable exhaust effect.

[0041] In one embodiment, the stop gauge portion 3, the holding portion 1 and the go gauge portion 2 are coaxially arranged, and the extending direction of the vent portion 4 is the same as the insertion direction of the go and stop gauge during testing.

[0042] In one embodiment, in order to reduce manufacturing costs, the exhaust portion 4 includes an exhaust groove, and the central axis of the exhaust groove is coaxially arranged with the central axis of the go / no-go gauge.

[0043] In one embodiment, in order to improve the exhaust capacity, the exhaust portion 4 includes a plurality of exhaust grooves, and the plurality of exhaust grooves are evenly distributed circumferentially along the central axis of the go / no-go gauge, thereby effectively reducing the probability of gas retention.

[0044] In one embodiment, the column shape includes a circle or a polygon.

[0045] In one embodiment, the column is a circle with a diameter of 1.5±0.02 mm, which can prevent foreign matter in the hole from blocking the exhaust channel and improve exhaust stability.

[0046] In one embodiment, the exhaust groove adopts a variable cross-section design and expands at the inlet and outlet of the exhaust groove to improve the fluidity and exhaust efficiency of the gas.

[0047] In one embodiment, the surface of the exhaust groove is coated with an anti-corrosion lubricating layer, which can prevent the corrosive substances in the workpiece material from having adverse effects on the exhaust groove, reduce friction resistance and foreign matter accumulation, and make the gas discharge faster. Coating the lubricating layer can reduce the friction on the surface of the exhaust groove, indirectly reduce the sticking phenomenon between the go gauge and the hole wall, and help to exhaust smoothly.

[0048] Specifically, the anti-corrosion lubricating layer includes a nano coating.

[0049] When the through gauge portion 2 is inserted into the blind hole of the part 5 to be tested (such as a bushing), the air inside the part is discharged through the exhaust portion 4, so that the through gauge portion 2 can enter smoothly to detect whether the hole is processed in place.

[0050] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to examples, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A go / no-go gauge with an exhaust structure, characterized in that: include: A gripping portion (1) which is columnar; A through-gauge portion (2) extending axially from one end of the gripping portion (1); A stop gauge portion (3) extending axially from the other end of the holding portion (1); An exhaust portion (4) sequentially passes through the stop gauge portion (3), the gripping portion (1) and the through gauge portion (2); Wherein, the exhaust portion (4) comprises at least one exhaust groove, and the shape of the exhaust groove comprises a columnar shape.

2. A go / no-go gauge with exhaust structure according to claim 1, characterized in that: The stop gauge portion (3), the holding portion (1) and the through gauge portion (2) are coaxially arranged.

3. A go / no-go gauge with exhaust structure according to claim 2, characterized in that: The extension direction of the exhaust portion (4) is the same as the insertion direction of the go / no-go gauge during testing.

4. A go / no-go gauge with exhaust structure according to claim 3, characterized in that: The exhaust portion (4) comprises an exhaust groove, and the central axis of the exhaust groove is coaxially arranged with the central axis of the go / no-go gauge.

5. The go / no-go gauge with exhaust structure according to claim 3, characterized in that: The exhaust portion (4) comprises a plurality of exhaust grooves, and the plurality of exhaust grooves are evenly distributed in the circumferential direction along the central axis of the go / no-go gauge.

6. A go / no-go gauge with exhaust structure according to claim 1, characterized in that: The column shape includes a circle or a polygon.

7. The go / no-go gauge with exhaust structure according to claim 1, characterized in that: The column is circular with a diameter of 1.5±0.02 mm.

8. The go / no-go gauge with exhaust structure according to claim 1, characterized in that: The surface of the exhaust groove is coated with an anti-corrosion lubricating layer.

9. A go / no-go gauge with an exhaust structure according to claim 8, characterized in that: The anti-corrosion lubricating layer includes a nano coating.

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