Go-no go gauge

Abstract

The utility model provides a go-no go gauge, relates to the technical field of measuring tools, and aims to solve the technical problem that a go-no go gauge in the prior art is inconvenient to use when being applied to measurement of a gap between a product and a gauge. A go-no go gauge comprises a cylinder, a first go gauge and a first no-go gauge, a first end face is formed at one end of the cylinder, the first go gauge and the first no-go gauge are both connected with the first end face, the first go gauge comprises a first detection part, the first no-go gauge comprises a second detection part, and the first detection part and the second detection part are arranged in parallel; the first go gauge and the first no-go gauge can extend to a gap at the same time when the gap between a product and a gauge is measured, if the first detection part can enter the gap and the second detection part cannot enter the gap, the product is qualified, and if the first detection part cannot enter the gap or the second detection part can enter the gap, the product is unqualified. And a measurement result can be obtained only through one-time measurement, so that the use is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring tools, and particularly to a go-no-go gauge. Background Art

[0002] A go-no-go gauge is a measuring tool, usually used to measure the inner diameter and other dimensional accuracies of workpieces, such as spacing, gaps, etc. The go-no-go gauge generally includes a go gauge and a no-go gauge. The go gauge is set within the allowable deviation range of the hole or gap size, and the no-go gauge size is set outside the allowable deviation range of the hole or gap size. If the go gauge can be inserted into the hole or gap and the no-go gauge cannot be inserted, the hole or gap size is qualified. If the go gauge cannot be inserted into the hole or gap or the no-go gauge can be inserted into the hole or gap, the hole or gap size is unqualified. For example, Chinese Patent CN105987654A discloses a go-no-go gauge for CCB, in which the go gauge and the no-go gauge are arranged at both ends of the handle. When the go-no-go gauge in the above patent is applied to measure the gap between a product and a fixture, it is necessary to measure twice with the go gauge and the no-go gauge successively. When dealing with a large product, it is necessary to first use the go gauge to measure whether the gap between the product and the fixture can pass around the product for one week, and then turn it around to use the no-go gauge to measure whether the gap between the product and the fixture can be stopped, resulting in very inconvenient use. Summary of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a go-no-go gauge to solve the technical problem that the go-no-go gauge in the prior art is inconvenient to use when applied to measure the gap between a product and a fixture.

[0004] To solve the above technical problem, the utility model provides a go-no-go gauge, which includes a cylinder, a first go gauge and a first no-go gauge. One end of the cylinder forms a first end face. Both the first go gauge and the first no-go gauge are connected to the first end face. The first go gauge includes a first detection part, and the first no-go gauge includes a second detection part. The first detection part and the second detection part are arranged in parallel.

[0005] After adopting the above structure, the go-no-go gauge of the utility model has the following advantages: The first go gauge and the first no-go gauge are arranged at the same end of the cylinder, and the first detection part and the second detection part are arranged in parallel. When measuring the gap between a product and a fixture, the first go gauge and the first no-go gauge can be simultaneously extended into the gap. If the first detection part can enter the gap and the second detection part cannot enter, it is qualified. If the first detection part cannot enter or the second detection part can enter the gap, it is unqualified. Even when the product is large, only one measurement is required to obtain the measurement result, and the use is more convenient.

[0006] As an improvement, a second end face is formed at the other end of the cylinder body. A second go gauge and a second not-go gauge are connected to the second end face. The second go gauge includes a third detection portion, and the second not-go gauge includes a fourth detection portion. The third detection portion and the fourth detection portion are arranged in parallel. The outer diameters of the first detection portion, the second detection portion, the third detection portion, and the fourth detection portion are different from each other. With this structure, in addition, a second go gauge and a second not-go gauge are arranged on the second end face, increasing different detection specifications and having stronger applicability.

[0007] As an improvement, the first go gauge further includes a first connecting portion. One end of the first connecting portion is rotatably connected to the first end face, and the other end of the first connecting portion is connected to the first detection portion. The first not-go gauge further includes a second connecting portion. One end of the second connecting portion is rotatably connected to the first end face, and the other end of the second connecting portion is connected to the second detection portion. The second go gauge further includes a third connecting portion. One end of the third connecting portion is rotatably connected to the second end face, and the other end of the third connecting portion is connected to the third detection portion. The second not-go gauge further includes a fourth connecting portion. One end of the fourth connecting portion is connected to the second end face, and the other end of the fourth connecting portion is connected to the fourth detection portion. The included angles α between the first connecting portion, the second connecting portion, the third connecting portion, and the fourth connecting portion and the axis of the cylinder body are all 45°. The rotation axes of the first connecting portion, the second connecting portion, the third connecting portion, and the fourth connecting portion are all their own central axes. With this structure, the first go gauge and the first not-go gauge are used in combination as a set of detection specifications, and the second go gauge and the second not-go gauge are used in combination as a set of detection specifications. By rotating the first go gauge, the first not-go gauge, the second go gauge, and the second not-go gauge, the first go gauge and the second go gauge are used in combination as a set of detection specifications, and the first not-go gauge and the second not-go gauge are used in combination as a set of detection specifications, totaling four sets of detection specifications, further enhancing the applicability.

[0008] As an improvement, the distance between the other end of the first connecting portion and the other end of the second connecting portion is greater than the distance between one end of the first connecting portion and one end of the second connecting portion. The distance between the other end of the third connecting portion and the other end of the fourth connecting portion is greater than the distance between one end of the third connecting portion and one end of the fourth connecting portion. With this structure, interference between the first go gauge, the first not-go gauge, the second go gauge, and the second not-go gauge during rotation is avoided.

[0009] As an improvement, a first connecting block is connected to the first end face. The first connecting block is provided with a first connecting surface and a second connecting surface. A second connecting block is connected to the second end face. The second connecting block is provided with a third connecting surface and a fourth connecting surface. The included angle β between the first connecting surface and the second connecting surface and the included angle β between the third connecting surface and the fourth connecting surface are both 90°. The included angles γ between the first connecting surface, the second connecting surface, the third connecting surface, the fourth connecting surface and the axis of the cylinder are all 45°. The first connecting portion is rotatably connected to the first connecting surface, the second connecting portion is rotatably connected to the second connecting surface, the third connecting portion is rotatably connected to the third connecting surface, and the fourth connecting portion is rotatably connected to the fourth connecting surface. With this structure, the first connecting portion can be perpendicular to the first connecting surface, the second connecting portion can be perpendicular to the second connecting surface, the third connecting portion can be perpendicular to the third connecting surface, and the fourth connecting portion can be perpendicular to the fourth connecting surface, which is convenient for the installation and rotation of the first connecting portion, the second connecting portion, the third connecting portion and the fourth connecting portion.

[0010] As an improvement, a circumferential convex portion is provided on the outer peripheral wall of the middle part of the cylinder along the circumferential direction. With this structure, it is convenient to hold and further convenient to use. Description of the Drawings

[0011] Figure 1 It is a schematic structural diagram of the present invention.

[0012] Figure 2 It is a schematic structural diagram of the present invention in another state.

[0013] Reference numerals: 1, cylinder; 11, first end face; 12, second end face; 2, first go gauge; 21, first detection part; 22, first connecting part; 3, first no-go gauge; 31, second detection part; 32, second connecting part; 4, second go gauge; 41, third detection part; 42, third connecting part; 5, second no-go gauge; 51, fourth detection part; 52, fourth connecting part; 6, first connecting block; 61, first connecting surface; 62, second connecting surface; 7, second connecting block; 71, third connecting surface; 72, fourth connecting surface; 8, circumferential convex portion. Detailed Description of the Invention

[0014] The following will describe in detail a go-no-go gauge of the present invention with reference to the drawings.

[0015] As Figures 1 to 2 shown, a go-no-go gauge includes a cylinder 1, a first go gauge 2 and a first no-go gauge 3. A first end face 11 is formed at one end of the cylinder 1. The first go gauge 2 and the first no-go gauge 3 are both connected to the first end face 11. The first go gauge 2 includes a first detection part 21, and the first no-go gauge 3 includes a second detection part 31. The first detection part 21 and the second detection part 31 are arranged in parallel, and the outer diameter of the first detection part 21 is smaller than the outer diameter of the second detection part 31.

[0016] AsFigure 1 As shown, a second end face 12 is formed at the other end of the cylinder 1. The second end face 12 is connected with a second go - gauge 4 and a second no - go - gauge 5. The second go - gauge 4 includes a third detection part 41, and the second no - go - gauge 5 includes a fourth detection part 51. The third detection part 41 and the fourth detection part 51 are arranged in parallel, and the outer diameters of the first detection part 21, the second detection part 31, the third detection part 41, and the fourth detection part 51 are all different.

[0017] As Figure 1 shown, the first go - gauge 2 further includes a first connecting part 22. One end of the first connecting part 22 is rotatably connected to the first end face 11, and the other end of the first connecting part 22 is connected to the first detection part 21. The first no - go - gauge 3 further includes a second connecting part 32. One end of the second connecting part 32 is rotatably connected to the first end face 11, and the other end of the second connecting part 32 is connected to the second detection part 31. The second go - gauge 4 further includes a third connecting part 42. One end of the third connecting part 42 is rotatably connected to the second end face 12, and the other end of the third connecting part 42 is connected to the third detection part 41. The second no - go - gauge 5 further includes a fourth connecting part 52. One end of the fourth connecting part 52 is connected to the second end face 12, and the other end of the fourth connecting part 52 is connected to the fourth detection part 51. The included angles α between the first connecting part 22, the second connecting part 32, the third connecting part 42, the fourth connecting part 52 and the axis of the cylinder 1 are all 45°. The rotation axes of the first connecting part 22, the second connecting part 32, the third connecting part 42, the fourth connecting part 52 are all their own central axes. Specifically, the distance between the other ends of the first connecting part 22 and the second connecting part 32 is greater than the distance between one ends of the first connecting part 22 and the second connecting part 32, and the distance between the other ends of the third connecting part 42 and the fourth connecting part 52 is greater than the distance between one ends of the third connecting part 42 and the fourth connecting part 52.

[0018] In addition, as Figure 1 and Figure 2As shown in the figure, a first connecting block 6 is connected to the first end face 11. A first connecting surface 61 and a second connecting surface 62 are provided on the first connecting block 6. A second connecting block 7 is connected to the second end face 12. A third connecting surface 71 and a fourth connecting surface 72 are provided on the second connecting block 7. The included angle β between the first connecting surface 61 and the second connecting surface 62 and the included angle β between the third connecting surface 71 and the fourth connecting surface 72 are both 90°. The included angle γ between the first connecting surface 61, the second connecting surface 62, the third connecting surface 71, the fourth connecting surface 72 and the axis of the cylinder 1 is 45°. The first connecting portion 22 is rotatably connected to the first connecting surface 61. The second connecting portion 32 is rotatably connected to the second connecting surface 62. The third connecting portion 42 is rotatably connected to the third connecting surface 71. The fourth connecting portion 52 is rotatably connected to the fourth connecting surface 72. And the first connecting portion 22 is perpendicular to the first connecting surface 61. The second connecting portion 32 is perpendicular to the second connecting surface 62. The third connecting portion 42 is perpendicular to the third connecting surface 71. The fourth connecting portion 52 is perpendicular to the fourth connecting surface 72. A circumferential convex portion 8 is provided on the outer peripheral wall of the middle part of the cylinder 1. In this embodiment, the cross-section of the convex portion 8 is a regular hexagon.

[0019] The first go gauge 2 and the first no-go gauge 3 are arranged at the same end of the cylinder 1, and the first detection portion 21 and the second detection portion 31 are arranged in parallel. When measuring the gap between the product and the gauge, the first go gauge 2 and the first no-go gauge 3 can be extended into the gap at the same time. If the first detection portion 21 can enter the gap and the second detection portion 31 cannot enter, it is qualified. If the first detection portion 21 cannot enter or the second detection portion 31 can enter the gap, it is unqualified. Even when the product is large, only one measurement is required to obtain the measurement result, which is more convenient to use. In addition, in the present utility model, different detection specifications are formed by rotating the first go gauge 2, the first no-go gauge 3, the second go gauge 4, and the second no-go gauge 5. For example, Figure 1 As shown in the figure, the first go gauge 2 and the first no-go gauge 3 in this state are used in combination as a set of detection specifications, and the second go gauge 4 and the second no-go gauge 5 are used in combination as a set of detection specifications. Rotate the first go gauge 2, the first no-go gauge 3, the second go gauge 4, and the second no-go gauge 5 to the state as shown in Figure 2 As shown in the figure, then the first go gauge 2 and the second go gauge 4 are used in combination as a set of detection specifications, and the first no-go gauge 3 and the second no-go gauge 5 are used in combination as a set of detection specifications. Among them, the smaller one of the outer diameters of the first detection portion 21 of the first go gauge 2 and the third detection portion 41 of the second go gauge 4 at this time is used as the go gauge, and the larger one is used as the no-go gauge. The same is true for the first no-go gauge 3 and the second no-go gauge 5. In this way, a total of four sets of detection specifications can be obtained, further enhancing the applicability. In some other embodiments, the left and right positions of the second go gauge 4 and the second no-go gauge 5 can be swapped, so that the first go gauge 2 and the second no-go gauge 5 after rotation form a set of detection specifications, and the first no-go gauge 3 and the second go gauge 4 form a set of detection specifications.

[0020] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above-mentioned one embodiment. All other embodiments obtained by those skilled in the art without creative efforts fall within the scope of protection of the present utility model.

Claims

1. A go / no-go gauge, characterized in that: The invention comprises a column (1), a first through gauge (2) and a first stop gauge (3); a first end face (11) is formed at one end of the column (1); the first through gauge (2) and the first stop gauge (3) are both connected to the first end face (11); the first through gauge (2) comprises a first detection portion (21); the first stop gauge (3) comprises a second detection portion (31); the first detection portion (21) and the second detection portion (31) are arranged in parallel.

2. The go / no-go gauge according to claim 1, characterized in that: A second end face (12) is formed at the other end of the column (1), and the second end face (12) is connected to a second through gauge (4) and a second stop gauge (5), the second through gauge (4) includes a third detection portion (41), the second stop gauge (5) includes a fourth detection portion (51), the third detection portion (41) and the fourth detection portion (51) are arranged in parallel, and the first detection portion (21), the second detection portion (31), the third detection portion (41) and the fourth detection portion (51) have different outer diameters.

3. The go / no-go gauge according to claim 2, characterized in that: The first through gauge (2) further comprises a first connecting portion (22), one end of the first connecting portion (22) being rotatably connected to the first end face (11), and the other end of the first connecting portion (22) being connected to the first detection portion (21); the first stop gauge (3) further comprises a second connecting portion (32), one end of the second connecting portion (32) being rotatably connected to the first end face (11), and the other end of the second connecting portion (32) being connected to the second detection portion (31); the second through gauge (4) further comprises a third connecting portion (42), one end of the third connecting portion (42) being rotatably connected to the second end face (12), and the other end of the third connecting portion (42) being connected to the second detection portion (31). One end is connected to the third detection part (41), and the second stop gauge (5) also includes a fourth connection part (52), one end of the fourth connection part (52) is connected to the second end surface (12), and the other end of the fourth connection part (52) is connected to the fourth detection part (51), and the angle α between the first connection part (22), the second connection part (32), the third connection part (42), and the fourth connection part (52) and the axis of the column (1) is 45°, and the rotation axis of the first connection part (22), the second connection part (32), the third connection part (42), and the fourth connection part (52) is their own central axis.

4. The go / no-go gauge according to claim 3, characterized in that: The distance between the other end of the first connecting portion (22) and the other end of the second connecting portion (32) is greater than the distance between one end of the first connecting portion (22) and one end of the second connecting portion (32), and the distance between the other end of the third connecting portion (42) and the other end of the fourth connecting portion (52) is greater than the distance between one end of the third connecting portion (42) and one end of the fourth connecting portion (52).

5. The go / no-go gauge according to claim 4, characterized in that: The first end surface (11) is connected to a first connecting block (6), the first connecting block (6) is provided with a first connecting surface (61) and a second connecting surface (62), the second end surface (12) is connected to a second connecting block (7), the second connecting block (7) is provided with a third connecting surface (71) and a fourth connecting surface (72), the angle β between the first connecting surface (61) and the second connecting surface (62) and the angle β between the third connecting surface (71) and the fourth connecting surface (72) are both 90°, the angle γ between the first connecting surface (61), the second connecting surface (62), the third connecting surface (71), the fourth connecting surface (72) and the axis of the column (1) are all 45°, the first connecting portion (22) is rotatably connected to the first connecting surface (61), the second connecting portion (32) is rotatably connected to the second connecting surface (62), the third connecting portion (42) is rotatably connected to the third connecting surface (71), and the fourth connecting portion (52) is rotatably connected to the fourth connecting surface (72).

6. The go / no-go gauge according to claim 1, characterized in that: An annular convex portion (8) is provided on the outer peripheral wall in the middle of the column (1) along the circumferential direction.

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