Inner diameter gauge for soft wear-resistant material

Abstract

The utility model relates to the technical field of dimension measurement and metering, and discloses a soft wear-resistant material inner diameter gauge, which comprises a hollow middle shaft sleeve and an inner diameter measuring assembly, the outer wall surface of the middle shaft sleeve is provided with a frame structure, the frame structure comprises a shell member arranged on the outer wall surface of the middle shaft sleeve, and the inner diameter measuring assembly is arranged on the outer wall surface of the middle shaft sleeve. A measuring groove is formed in the shell part in a penetrating mode, a mounting groove is formed in the position, corresponding to the measuring groove, of the middle shaft sleeve, the inner diameter measuring assembly is arranged in the measuring groove and the mounting groove, and the outermost side of the shell part is made of soft abrasion-resistant composite materials. According to the device, the prior art is improved, the positioning column and the centering sleeve are made of soft wear-resistant composite materials, it is ensured that the device cannot collide, scratch and damage the interior of a soft precision part in the measurement process, and measurement additional damage is reduced to the minimum.

Description

Technical Field

[0001] The utility model relates to the technical field of size measurement and metrology, in particular to an inner diameter gauge made of soft wear-resistant material. Background Art

[0002] The prior art discloses a spliced ​​cross inner diameter gauge (patent publication number: CN220170099U), including a fixed part and a connecting part, wherein the fixed part includes a hollow spline shaft, and a concave groove is provided on the outer wall of the hollow spline shaft, and the connecting part includes a rectangular key plate, and there are four rectangular key plates in total. The four rectangular key plates are provided with a protrusion for engaging with the concave groove on the outer wall of the hollow spline shaft on the side wall surface close to each other, and the protrusion provided on the rectangular key plate is engaged with the concave groove on the outer wall in a mortise and tenon structure (or screw connection). The prior art is connected by snapping, which is easy to install and can measure the inner diameter of parts with different diameters, and has high measurement accuracy. However, the hardness of the traditional steel measuring head is too high, which will cause incidental surface damage to the precision inner holes of some non-ferrous metal or glass parts by scratching and bumping, and serious bumping may even cause the product to be scrapped.

[0003] In order to solve the internal damage caused by direct contact of traditional steel measuring heads with workpieces, the present application improves the existing technology by introducing soft synthetic resin materials into the product design of traditional pin-type precision inner diameter gauges, thereby realizing a precision gauge with a synthetic material centering body that is both wear-resistant and soft. While ensuring a good service life, it also ensures that the probe body does not cause any bumps or scratches on the soft precision parts.

[0004] For this reason, we propose the inner diameter gauge made of soft wear-resistant material. Utility Model Content

[0005] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides an inner diameter gauge made of soft wear-resistant material.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a soft wear-resistant material inner diameter gauge, including a center sleeve and an inner diameter measuring component, the center sleeve is hollow, and the outer wall surface of the center sleeve is provided with a frame structure, and the frame structure includes an outer shell component arranged on the outer wall surface of the center sleeve, and a measuring groove is opened through the outer shell component, and the center sleeve is provided with an installation groove at a position corresponding to the measuring groove, and the inner diameter measuring component is arranged in the measuring groove and the installation groove, and the outermost material of the outer shell component is a soft wear-resistant composite material.

[0007] Preferably, the outer shell comprises a bracket and a positioning column. The bracket is cross-shaped and movably passes through the central sleeve. The positioning column is fixedly mounted on the four side ends of the bracket. The material used for the positioning column is a soft wear-resistant composite material.

[0008] Preferably, the outer shell member includes a centering sleeve, which is fixedly mounted on the outer wall surface of the central shaft sleeve, and the material used for the outer wall surface of the centering sleeve is a soft wear-resistant composite material.

[0009] The utility model provides a soft wear-resistant material inner diameter gauge, which has the following beneficial effects:

[0010] (1) The inner diameter gauge of the soft wear-resistant material. The inner diameter measuring device of the prior art is usually made of hardened steel. Since the surface hardness of the hardened steel is too high, it often causes incidental surface damage such as scratches and bumps to the precision inner holes of some non-ferrous metal or glass parts. For this reason, the present application improves the prior art by setting the positioning column to be made of a soft wear-resistant composite material. During the measurement process, it is ensured that the device will not cause bumps, scratches and damage to the inside of the soft precision parts, thereby reducing the additional damage to the measurement to a minimum. The present device can be widely used in the inner diameter measurement occasions of high-precision inner holes such as non-ferrous metals, smooth glass products, non-metallic coatings, etc. and have special protection requirements. It is of great significance in the fields of precision manufacturing such as optoelectronics, aerospace, aviation, and optics.

[0011] (2) In the measurement process of the inner diameter gauge made of soft wear-resistant material, the outer wall surface of the centering sleeve contacts the inside of the precision part. By setting the material used for the outer wall surface of the centering sleeve to be a soft wear-resistant composite material, it is ensured that the device will not cause bumps, scratches and damage to the inside of the soft precision part during the measurement process, thereby minimizing the additional damage caused by the measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a front view of the product of Example 1;

[0013] Figure 2 This is a schematic diagram of the three-dimensional structure of the product of Example 1;

[0014] Figure 3 This is a schematic top view of the product of Example 1;

[0015] Figure 4 This is a schematic diagram of the cutaway structure of the product of Example 1;

[0016] Figure 5 It is a schematic diagram of the three-dimensional structure of the bracket in Example 1.

[0017] Legend:

[0018] 10. Middle shaft sleeve; 11. Bracket; 12. Positioning column; 14. Centering sleeve. DETAILED DESCRIPTION

[0019] Embodiment 1: Inner diameter gauge of soft wear-resistant material, such as Figure 1-3As shown, it includes a central sleeve 10 and an inner diameter measuring component. The central sleeve 10 is hollow and is characterized in that: the outer wall of the central sleeve 10 is provided with a frame structure, and the frame structure includes a shell member arranged on the outer wall of the central sleeve 10. A measuring groove is provided through the shell member. The central sleeve 10 is provided with an installation groove at a position corresponding to the measuring groove. The inner diameter measuring component is arranged in the measuring groove and the installation groove. The outermost material of the shell member is a soft wear-resistant composite material. The shell member includes a bracket 11 and a positioning column 12. The bracket 11 is in a cross shape (such as Figure 5 As shown), the bracket 11 movably passes through the middle shaft sleeve 10, and the positioning columns 12 are fixedly installed on the four side ends of the bracket 11. The material used for the positioning columns 12 is a soft wear-resistant composite material.

[0020] The inner diameter measuring component used in this application is an inner diameter measuring method disclosed in the prior art (patent publication number: CN220170099U), which can measure the inner diameter of a part and will not be described in detail here.

[0021] Specifically, the inner diameter measuring devices in the prior art are usually made of hardened steel. Since the surface hardness of hardened steel is too high, it often causes incidental surface damage such as scratches and bumps to the precision inner holes of some non-ferrous metal or glass parts. For this reason, the present application improves the prior art by setting the material used for the positioning column 12 to be a soft wear-resistant composite material, thereby ensuring that the device will not cause bumps, scratches and damage to the inside of soft precision parts during the measurement process, thereby reducing the additional damage caused by the measurement to a minimum. The present device can be widely used in inner diameter measurement occasions with high-precision inner holes such as non-ferrous metals, smooth glass products, non-metallic coatings, etc. and with special protection requirements, and is of great significance in precision manufacturing fields such as optoelectronics, aerospace, aviation, and optics.

[0022] Embodiment 2: Inner diameter gauge of soft wear-resistant material, such as Figure 4 As shown, it includes a central sleeve 10 and an inner diameter measuring component. The central sleeve 10 is hollow and is characterized in that: the outer wall surface of the central sleeve 10 is provided with a frame structure, and the frame structure includes a shell member arranged on the outer wall surface of the central sleeve 10, and a measuring groove is provided through the shell member. The central sleeve 10 is provided with an installation groove at a position corresponding to the measuring groove, and the inner diameter measuring component is arranged in the measuring groove and the installation groove. The outermost material of the shell member is a soft wear-resistant composite material. The shell member includes a centering sleeve 14, which is fixedly installed on the outer wall surface of the central sleeve 10, and the material used for the outer wall surface of the centering sleeve 14 is a soft wear-resistant composite material.

[0023] Specifically, during the measurement process, the outer wall of the centering sleeve 14 contacts the inside of the precision parts. By setting the material used for the outer wall of the centering sleeve 14 to be a soft wear-resistant composite material, it is ensured that the device will not cause bumps, scratches and damage to the inside of the soft precision parts during the measurement process, thereby minimizing additional damage to the measurement.

[0024] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. An inner diameter gauge of a soft wear-resistant material, comprising a central sleeve (10) and an inner diameter measuring assembly, wherein the central sleeve (10) is hollow and characterized in that: The outer wall surface of the middle shaft sleeve (10) is provided with a frame structure, and the frame structure includes an outer shell member arranged on the outer wall surface of the middle shaft sleeve (10), a measuring groove is provided through the outer shell member, and the middle shaft sleeve (10) is provided with an installation groove at a position corresponding to the measuring groove, and an inner diameter measuring component is arranged in the measuring groove and the installation groove, and the outermost material of the outer shell member is a soft wear-resistant composite material.

2. The inner diameter gauge of soft wear-resistant material according to claim 1, characterized in that: The housing member comprises a bracket (11) and a positioning column (12); the bracket (11) is in a cross shape; the bracket (11) movably passes through the middle shaft sleeve (10); the positioning column (12) is fixedly mounted on four side ends of the bracket (11); and the material used for the positioning column (12) is a soft wear-resistant composite material.

3. The inner diameter gauge of soft wear-resistant material according to claim 1, characterized in that: The outer shell component comprises a centering sleeve (14), which is fixedly mounted on the outer wall surface of the middle shaft sleeve (10), and the outer wall surface of the centering sleeve (14) is made of a soft wear-resistant composite material.

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