Internal and external circle R angle inspection gauge

Abstract

The utility model discloses an inner and outer circle R angle inspection gauge, which comprises an inspection gauge body, the inspection gauge body is of a cross plate-shaped structure, four groups of semicircular end heads and four groups of concave 1 / 4 arc angles are arranged on the inspection gauge body, and the radiuses of the four groups of semicircular end heads and the four groups of concave 1 / 4 arc angles are different from each other. The utility model has the advantages that the cross-shaped platy structure can provide four groups of semicircular ends and four groups of concave 1 / 4 arc angles, the free edge of the cross-shaped right angle is more accurate to measure, the operation is simple, the popularization and the use in production are convenient, multiple functions are realized, the carrying is convenient, the service life is long, the cost is low, and the corrosion-resistant and wear-resistant plate material with moderate thickness is adopted, so that the production cost is reduced. The device is convenient to detect in a construction environment, simple in structure, practical and convenient to carry.

Description

Technical Field

[0001] The utility model relates to the field of ship welding and ship component appearance inspection, in particular to an inner and outer circle R angle inspection gauge. Background Art

[0002] According to the Common Ship Specifications (CSR) and the requirements of the construction drawings, in order to improve the fatigue strength of key structural details of the ship, the grooves between multi-pass welds need to be ground to form arcs greater than a certain radius R value, and the toe of the fillet weld needs to be ground with a groove of a certain radius R. The above R values ​​need to be measured and monitored.

[0003] The PSPC requirements for ship ballast tanks require that the free edges of the structure be chamfered with a radius of R2; in addition, the free edges of some high stress concentration areas need to be chamfered with a radius of R3; some ship machined components and steel castings have radius chamfer requirements such as R5.

[0004] The existing R-ruler is not accurate in measuring the R of the right-angled free edge, is not convenient to carry, has complicated specifications and is not suitable for on-site promotion, is expensive, and is made of thin material and is easily worn and damaged. Utility Model Content

[0005] The purpose of the utility model is to provide an inner and outer circle R angle inspection gauge. The cross-shaped plate structure can provide four groups of semicircular end heads and four groups of concave 1 / 4 arc angles. The cross-shaped right-angle free edge measurement is more accurate. The operation is simple and convenient for popularization and use in production. It is multifunctional and easy to carry, has a long service life and low cost. At the same time, it adopts corrosion-resistant and wear-resistant plate materials of moderate thickness, which is convenient for detection in a construction environment. It has a simple structure, is practical and easy to carry.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A kind of inner and outer circle R angle inspection gauge, characterized in that it includes an inspection gauge body, the inspection gauge body is a cross-shaped plate structure, and four groups of semicircular end heads and four groups of concave 1 / 4 arc angles are provided on the inspection gauge body, and the radii of the four groups of semicircular end heads and the four groups of concave 1 / 4 arc angles are different from each other.

[0008] Preferably, the inspection gauge body has a size of 50mm*52mm and a thickness of 2mm.

[0009] Preferably, the radii of the four groups of semicircular end heads are 4 mm, 5 mm, 6 mm and 7 mm respectively along the rotation direction.

[0010] Preferably, the four groups of semicircular end heads are marked as R4, R5, R6 and R7 according to the arc radius values, and the markings of the four groups of semicircular end heads are respectively set on the front and back sides of the corresponding end heads.

[0011] Preferably, the radii of the four groups of concave 1 / 4 arc angles are 2 mm, 3 mm, 5 mm and 6 mm respectively along the rotation direction.

[0012] Preferably, the four groups of concave 1 / 4 arc angles are marked as R2, R3, R5 and R6 according to the arc radius values, and the radius value markings of the four groups of concave 1 / 4 arc angles are respectively set on the front and back sides of the corresponding concave angles.

[0013] Preferably, the starting and ending positions of the four groups of semicircular end heads and the four groups of concave 1 / 4 arc angles are marked with scale lines, and the scale lines are set on the front and back sides of the inspection gauge body.

[0014] Preferably, a circular hanging hole is provided on the semicircular end marked as R7, and the radius of the circular hanging hole is 2 mm.

[0015] Preferably, the inspection gauge body is made of stainless steel.

[0016] To sum up, the utility model has the following beneficial effects: the cross-shaped plate structure of the utility model can provide four groups of semicircular end heads and four groups of concave 1 / 4 arc angles, the measurement of the cross-shaped right-angled free edge is more accurate, the operation is simple and easy to promote and use in production, it is multifunctional and easy to carry, has a long service life and low cost, and at the same time uses corrosion-resistant and wear-resistant plate materials of moderate thickness, which is convenient for detection in a construction environment. It has a simple structure, is practical and easy to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the structure of the utility model inner and outer circle R angle inspection gauge;

[0019] Figure 2 This is a schematic diagram of the use of the utility model's inner and outer circle R angle inspection gauge for measuring the outer arc radius;

[0020] Figure 3 This is a schematic diagram of the use of the utility model's inner and outer circle R angle inspection gauge for measuring the outer arc radius;

[0021] In the figure: 1-first semicircular end, 2-second semicircular end, 3-third semicircular end, 4-fourth semicircular end, 5-first concave 1 / 4 arc angle, 6-second concave 1 / 4 arc angle, 7-third concave 1 / 4 arc angle, 8-fourth concave 1 / 4 arc angle, 9-mark, 10-scale line, 11-circular hanging hole. DETAILED DESCRIPTION

[0022] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0023] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to the other element and integrated therewith, or there may be a central element at the same time. The terms "installation", "one end", "the other end" and similar expressions used herein are for illustrative purposes only. On the other hand, in the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] like Figure 1 The inner and outer circle R angle inspection gauge shown includes an inspection gauge body, which is a cross-shaped plate structure. Four groups of semicircular end heads and four groups of concave 1 / 4 arc angles are provided on the inspection gauge body. The radii of the four groups of semicircular end heads and the four groups of concave 1 / 4 arc angles are different from each other.

[0026] The inspection gauge body measures 50mm*52mm and is 2mm thick, making it easy to carry. It is of moderate thickness and not easily worn or damaged.

[0027] The four groups of semicircular end heads are the first semicircular end head 1, the second semicircular end head 2, the third semicircular end head 3 and the fourth semicircular end head 4 along the rotation direction, with radii of 4mm, 5mm, 6mm and 7mm respectively. The markings 9 corresponding to the arc radius values ​​are R4, R5, R6 and R7 respectively. The markings of the four groups of semicircular end heads are respectively set on the front and back sides of the corresponding ends.

[0028] The four groups of concave 1 / 4 arc angles are the first concave 1 / 4 arc angle 5, the second concave 1 / 4 arc angle 6, the third concave 1 / 4 arc angle 7 and the fourth concave 1 / 4 arc angle 8 along the rotation direction, with radii of 2mm, 3mm, 5mm and 6mm respectively. The markings 9 corresponding to the arc radius values ​​are R2, R3, R5 and R6 respectively. The radius value markings of the four groups of concave 1 / 4 arc angles are respectively set on the front and back sides of the corresponding concave angles.

[0029] The starting and ending positions of the four groups of semicircular ends and the four groups of concave 1 / 4 arc angles are marked with scale lines 10. The scale lines 10 are set on both sides of the inspection gauge body to facilitate observation by staff. The multi-specification setting is also suitable for on-site promotion.

[0030] A circular hanging hole 11 is provided on the second semicircular end 2 marked 9 as R7. The radius of the circular hanging hole 11 is 2 mm, which is convenient for carrying around after installing a ring.

[0031] The inspection gauge body is made of stainless steel or other equally corrosion-resistant and wear-resistant materials, and is not easily damaged during use.

[0032] like Figure 2 The illustrated embodiment measures the radius of the groove, which improves the fatigue strength of the weld toe. If the weld toe groove arc is required to be larger than R5 according to the drawing, select the R5 end of the inspection gauge and align the arc edge of the R5 end with the arc of the weld toe groove. If the vertex of the inspection gauge arc contacts the bottom of the weld groove arc with a gap on both sides, the weld toe groove arc is larger than R5, meeting the drawing requirements. If both sides of the inspection gauge arc contact the two sides of the weld groove arc with a gap at the bottom, the weld toe groove arc is smaller than R5, not meeting the drawing requirements.

[0033] like Figure 3 In the illustrated embodiment, the R value of the chamfer of a component's free edge is measured. In areas of high stress concentration, the chamfer of the free edge of the structure is required to be R3. The R3 concave arc angle of the inspection gauge is aligned with the free edge of the structure. By observing the degree of alignment or the relative position of the scale line and the point of intersection of the arc, it can be determined whether the chamfer of the free edge of the structure is greater than R3.

[0034] for Figure 2 and Figure 3In the embodiment shown, in order to ensure that the measurement accuracy meets the production requirements, the accuracy of the inner and outer circle R angle inspection gauge body is required to be within ±0.5mm.

[0035] The cross-shaped plate structure of the utility model can provide four groups of semicircular end heads and four groups of concave 1 / 4 arc angles. The measurement of the cross-shaped right-angled free edge is more accurate, the operation is simple and it is easy to promote and use in production. It is multifunctional and easy to carry, has a long service life and low cost. At the same time, it uses corrosion-resistant and wear-resistant plate materials of moderate thickness, which is convenient for detection in a construction environment. It has a simple structure, is practical and easy to carry.

[0036] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements to the technical solutions of the present invention made by ordinary engineering technicians in this field should fall within the scope of protection of the present invention. The technical contents requested for protection of the present invention have been fully recorded in the technical requirements.

Claims

1. An inner and outer circle R angle inspection gauge, characterized in that: The inspection gauge body comprises a cross-shaped plate structure, and is provided with four groups of semicircular end heads and four groups of inwardly concave 1 / 4 arc angles, and the radii of the four groups of semicircular end heads and the four groups of inwardly concave 1 / 4 arc angles are different from each other.

2. The inner and outer circle R angle inspection gauge according to claim 1, characterized in that: The inspection gauge body has a size of 50mm*52mm and a thickness of 2mm.

3. The inner and outer circle R angle inspection gauge according to claim 1, characterized in that: The radii of the four groups of semicircular end heads are 4 mm, 5 mm, 6 mm and 7 mm respectively along the rotation direction.

4. The inner and outer circle R angle inspection gauge according to claim 3, characterized in that: The four groups of semicircular end heads are marked as R4, R5, R6 and R7 according to the arc radius values, and the markings of the four groups of semicircular end heads are respectively set on the front and back sides of the corresponding end heads.

5. The inner and outer circle R angle inspection gauge according to claim 1, characterized in that: The radii of the four groups of concave 1 / 4 arc angles are 2 mm, 3 mm, 5 mm and 6 mm respectively along the rotation direction.

6. The inner and outer circle R angle inspection gauge according to claim 5, characterized in that: The four groups of concave 1 / 4 arc angles are marked as R2, R3, R5 and R6 according to the arc radius values, and the radius value markings of the four groups of concave 1 / 4 arc angles are respectively set on the front and back sides of the corresponding concave angles.

7. The inner and outer circle R angle inspection gauge according to claim 1, characterized in that: The starting and ending positions of the four groups of semicircular end heads and the four groups of concave 1 / 4 arc angles are marked with scale lines, and the scale lines are set on the front and back sides of the inspection gauge body.

8. The inner and outer circle R angle inspection gauge according to claim 1, characterized in that: The semicircular end marked as R7 is provided with a circular hanging hole, and the radius of the circular hanging hole is 2 mm.

9. The inner and outer circle R angle inspection gauge according to claim 1, characterized in that: The inspection gauge body is made of stainless steel.

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