CN212363075U

CN212363075U - Flatness detection jig

Info

Publication number: CN212363075U
Application number: CN202021495750.8U
Authority: CN
Inventors: 孙小银; 卞圣玮; 孟祥龙; 陈小宏; 陈齐林
Original assignee: Yuqin Precision Drawing Technology Suzhou Co Ltd
Current assignee: Yuqin Precision Drawing Technology Suzhou Co Ltd
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2021-01-15
Anticipated expiration: 2030-07-24

Abstract

The utility model discloses a flatness detection jig, which comprises a base, a first thin plate and a second thin plate; the number of the first thin plates is two, and the two first thin plates are arranged at the left end and the right end of the surface of the base in parallel; the second thin plates are transversely arranged at the end parts of the two second thin plates; connecting the two ends of the second thin plate, the front end of the first thin plate and the base together through bolts; gaps which are just passed by the sheet-shaped parts are formed between the two first thin plates and between the second thin plate and the base. The utility model relates to a roughness detection tool, this detection tool can the short-term test slice part the surface roughness.

Description

Flatness detection jig

Technical Field

The utility model relates to a roughness detection tool.

Background

When a part is machined, the flatness of the surface of the part is often required, and the conventional mode is to roughly judge the integral flatness by measuring a plurality of points on the surface of the part by using a vernier caliper.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a roughness detection tool, this detection tool can the short-term test sheet part the surface roughness.

In order to achieve the above object, the present invention provides a flatness detecting jig, which comprises a base, a first thin plate, and a second thin plate; the number of the first thin plates is two, and the two first thin plates are arranged at the left end and the right end of the surface of the base in parallel; the second thin plates are transversely arranged at the end parts of the two second thin plates; connecting the two ends of the second thin plate, the front end of the first thin plate and the base together through bolts; gaps which are just passed by the sheet-shaped parts are formed between the two first thin plates and between the second thin plate and the base.

Further, the flatness detection jig further comprises a gasket; the cross section of the side of the gasket is Z-shaped, the left side and the right side of the front end of the gasket are parallel thin sheets, and grooves for avoiding bolts are formed in the thin sheets.

Furthermore, the upper surface of the rear end of the gasket is provided with anti-skid grains.

Further, the flatness detection jig further comprises a support; the rear end of the bracket is a slope, the front end of the bracket is a horizontal plate, and a supporting plate for supporting the base is arranged at the joint of the slope and the horizontal plate; the bottom of the base leans against the slope, and two sides of the front end of the base abut against the supporting plate.

Furthermore, two parallel thin sheets are arranged on two sides of the horizontal plate at the front end of the support, and a gap which is just not used for the sheet-shaped part to pass through is formed between the two parallel thin sheets.

Furthermore, two parallel thin sheets are fixed on two sides of a horizontal plate at the front end of the bracket through bolts.

The utility model has the advantages and the beneficial effects that: the utility model relates to a roughness detection tool, this detection tool can the short-term test slice part the surface roughness.

Drawings

Fig. 1 is a schematic structural view of the present invention without a support.

Fig. 2 is an exploded view of the components of the present invention without a bracket.

Fig. 3 is a schematic structural view of the bracket of the present invention.

Fig. 4 is an exploded view of each part of the bracket of the present invention.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

Example (b):

as shown in fig. 1 to 4, a flatness detecting jig includes a base 1, a first thin plate 2, and a second thin plate 3; the number of the first thin plates 2 is two, and the two first thin plates 2 are arranged at the left end and the right end of the surface of the base 1 in parallel; the second thin plates 3 are transversely arranged at the end parts of the two second thin plates 3; two ends of the second thin plate 3, the front end of the first thin plate 2 and the base 1 are connected together through bolts; gaps are formed between the two first thin plates 2 and between the second thin plate 3 and the base 1, and the sheet-shaped parts just pass through the gaps.

The flatness detection jig further comprises a gasket 4; the cross section of the side of the gasket 4 is Z-shaped, the left side and the right side of the front end of the gasket 4 are parallel thin sheets, and grooves for avoiding bolts are formed in the thin sheets.

The upper surface of the rear end of the gasket 4 is provided with anti-skid grains.

The flatness detection jig further comprises a bracket 5; the rear end of the bracket 5 is a slope, the front end of the bracket 5 is a horizontal plate, and a supporting plate 6 for supporting the base 1 is arranged at the joint of the slope and the horizontal plate; the bottom of the base 1 leans against the slope, and two sides of the front end of the base 1 lean against the supporting plate 6.

Two parallel thin sheets are arranged on two sides of a horizontal plate at the front end of the support 5, and a gap which just does not allow the maximum width of the sheet-shaped part to pass through is formed between the two parallel thin sheets 7.

Two parallel thin sheets 7 are fixed on two sides of the horizontal plate at the front end of the bracket 5 through bolts.

As shown in fig. 1, the part a is a circular thin sheet, and when the flatness of the part a is checked, the part a passes through the gaps between the two first thin plates 2 and between the second thin plate 3 and the base 1 of the flatness detection jig, and can pass through smoothly, which indicates that the surface of the part a has no protrusions and the flatness is good. For parts A with different thicknesses, the gasket 4 can be replaced, gaskets 4 with different thickness specifications are prepared in advance, and the corresponding gasket 4 is selected according to the thickness of the part A to be measured (the thickness of the gasket 4 + the thickness of the first thin plate 2 = the thickness of the part A to be measured)

As shown in fig. 3, when the base 1 is placed on the support 5, the component a can slide down along the surface of the base 1 and finally pass through the gap between the two first thin plates 2 and the gap between the second thin plate 3 and the base 1, and if the component a can pass through smoothly, the surface of the component a has no protrusion and has good flatness. (the purpose of the ramp is to facilitate the inspection of part A)

The spacing H between the two first sheets 2 in fig. 3 = the maximum diameter allowed for the part a, i.e. a gauge forming the diameter of the part a to be checked; the gap distance h between two parallel sheets on both sides of the horizontal plate at the front end of the bracket 5 in fig. 3, which is just not allowed to pass through the maximum width of the sheet-like part (i.e. the diameter of the part a), is = the minimum diameter allowed by the part a, i.e. a no-go gauge for checking the diameter of the part a is formed.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a roughness detection tool which characterized in that: comprises a base, a first thin plate and a second thin plate; the number of the first thin plates is two, and the two first thin plates are arranged at the left end and the right end of the surface of the base in parallel; the second thin plates are transversely arranged at the end parts of the two second thin plates; connecting the two ends of the second thin plate, the front end of the first thin plate and the base together through bolts; gaps which are just passed by the sheet-shaped parts are formed between the two first thin plates and between the second thin plate and the base.

2. The flatness detecting jig according to claim 1, wherein: also includes a gasket; the cross section of the side of the gasket is Z-shaped, the left side and the right side of the front end of the gasket are parallel thin sheets, and grooves for avoiding bolts are formed in the thin sheets.

3. The flatness detecting jig according to claim 2, wherein: the upper surface of the rear end of the gasket is provided with anti-skid grains.

4. The flatness detecting jig according to claim 1, wherein: the device also comprises a bracket; the rear end of the bracket is a slope, the front end of the bracket is a horizontal plate, and a supporting plate for supporting the base is arranged at the joint of the slope and the horizontal plate; the bottom of the base leans against the slope, and two sides of the front end of the base abut against the supporting plate.

5. The flatness detecting jig according to claim 4, wherein: two parallel thin sheets are arranged on two sides of a horizontal plate at the front end of the support, and a gap which just does not allow the maximum width of the sheet-shaped part to pass through is formed between the two parallel thin sheets.

6. The flatness detecting jig according to claim 5, wherein: two parallel thin sheets are fixed on two sides of a horizontal plate at the front end of the bracket through bolts.