Angle testing fixture

Abstract

The utility model discloses an angle testing fixture which comprises a first measuring arm, the outer wall of the first measuring arm is movably connected with a first sliding block, the inner wall of the first sliding block is provided with a bearing, the inner ring of the bearing is provided with a second sliding block, the inner wall of the second sliding block is movably connected with a second measuring arm, and the second measuring arm is provided with a second sliding block. A measuring plate is installed on the outer wall of the second sliding block. The utility model relates to the technical field of angle dimension detection, and the angle gauge can rapidly and accurately measure the included angle dimension of adjacent or non-adjacent detected surfaces at low cost through the cooperation of the first measuring arm, the second measuring arm, the first sliding block, the second sliding block, the measuring plate, the bearing and the reference line. The problem that traditional equipment has certain use limitation is solved, operation is easy, the working efficiency can be effectively improved, the whole device is small and exquisite, a worker can carry the device more conveniently, and therefore convenience is brought to use of the worker.

Description

Technical Field

[0001] The utility model relates to the technical field of angle size detection, in particular to an angle measuring tool. Background Art

[0002] In the machinery manufacturing industry, parts are usually machined from blanks that can completely cover the part dimensions. Before machining the blanks, they need to be dimensionally inspected to confirm whether they meet the processing requirements. Dimensional inspection often involves the angle between two sides. There are generally three methods for angle dimension inspection: 1. Use an angle ruler for inspection; 2. Make a special tool with upper and lower limits of the angle to be inspected and compare them with the angle to be inspected; 3. Use three-dimensional or three-dimensional scanning inspection;

[0003] Traditional detection methods all have certain problems. 1. The angle ruler detection method is only applicable when the two surfaces to be detected are directly adjacent, and there is a surface that is perpendicular to both surfaces to be detected, which has great limitations. 2. Special tooling with upper and lower limits of the angle to be detected is made to compare with the angle to be detected. The disadvantages are that first, tooling with upper and lower limits of all angle sizes to be tested needs to be made, and second, it can only determine whether the requirements are met, but cannot determine the exact angle size value. 3. Three-coordinate or three-dimensional scanning detection methods are expensive to use and inefficient. Utility Model Content

[0004] In response to the deficiencies in the prior art, the present invention provides an angle gauge, which solves the problem that the angle ruler detection method is only applicable to the two surfaces being detected that are directly adjacent, and there is a surface that is perpendicular to both surfaces being detected, which has great limitations; a tooling for making special upper and lower limits of the angle being detected is made to compare with the angle being detected. The disadvantages are that, first, upper and lower limit tooling needs to be made for all angle sizes being tested, and second, it can only determine whether the requirements are met, but cannot determine the exact angle size value; the three-coordinate or three-dimensional scanning detection method has the problem of high cost and low efficiency.

[0005] To achieve the above-mentioned purpose, the present invention is implemented through the following technical solution: an angle measuring tool, including a first measuring arm, the outer wall of the first measuring arm is movably connected to a first slider, the inner wall of the first slider is installed with a bearing, the inner ring of the bearing is installed with a second slider, the inner wall of the second slider is movably connected to a second measuring arm, the outer wall of the second slider is installed with a measuring plate, and the outer walls of the first measuring arm and the second measuring arm are both processed with reference lines.

[0006] Preferably, the inner and outer rings of the bearing are interference-fitted with rubber rings, and the outer walls of the two rubber rings are detachably connected to the grooves of the first slider and the second slider respectively.

[0007] Preferably, friction strips are installed on the inner walls of the first sliding block and the second sliding block, and the outer walls of the two friction strips are movably connected to the grooves of the first measuring arm and the second measuring arm respectively.

[0008] Preferably, rubber pads are installed on the bottoms of the first measuring arm and the second measuring arm.

[0009] Preferably, the tops of the first measuring arm and the second measuring arm are both machined with grinding grooves.

[0010] The utility model has the following beneficial effects: the angle measuring tool can quickly, accurately and at low cost measure the angle size of adjacent or non-adjacent inspected surfaces through the cooperation of the first measuring arm, the second measuring arm, the first slider, the second slider, the measuring plate, the bearing and the reference line, thereby solving the problem that traditional equipment has certain usage limitations, and is simple to operate, which can effectively improve work efficiency. The overall size is compact, making it more convenient for workers to carry, thereby bringing convenience to workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of the utility model;

[0012] Figure 2 This is another structural schematic diagram of the utility model;

[0013] Figure 3 for Figure 1 A cross-sectional view of the first slider, the second slider and the measuring plate;

[0014] Figure 4 for Figure 2 Schematic diagram of the structure of the second measuring arm and rubber pad.

[0015] In the figure: 1. first measuring arm, 2. second measuring arm, 3. first slider, 4. second slider, 5. measuring plate, 6. reference line, 7. rubber pad, 8. bearing, 9. rubber ring, 10. friction strip. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] By those skilled in the art, the components in this case are connected in sequence. The specific connection and operation sequence should refer to the following working principle. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process.

[0018] Traditional inspection methods all have certain problems. 1. The use of an angle ruler is only applicable to two directly adjacent surfaces to be inspected, and there is a surface perpendicular to both surfaces to be inspected, which is quite limited. 2. The disadvantage of making a special tooling with upper and lower limits of the inspected angle and comparing it with the inspected included angle is that the upper and lower limits of the inspected angle dimensions must be made. Secondly, it can only determine whether the requirements are met, but cannot determine the exact angle dimension value. 3. Three-coordinate or three-dimensional scanning inspection methods are expensive and inefficient.

[0019] In view of this, the utility model provides an angle measuring tool, which can quickly, accurately and at low cost measure the angle size of adjacent or non-adjacent inspected surfaces through the cooperation of a first measuring arm, a second measuring arm, a first slider, a second slider, a measuring plate, a bearing and a reference line. It is also simple to operate and easy to carry, thus bringing convenience to the staff.

[0020] Example 1: By Figure 1 、 2 , 3 and 4 show that an angle gauge includes a first measuring arm 1, a first slider 3 is movably connected to the outer wall of the first measuring arm 1, a bearing 8 is mounted on the inner wall of the first slider 3, a second slider 4 is mounted on the inner ring of the bearing 8, a second measuring arm 2 is movably connected to the inner wall of the second slider 4, a measuring plate 5 is mounted on the outer wall of the second slider 4, and a reference line 6 is machined on the outer walls of the first measuring arm 1 and the second measuring arm 2;

[0021] During the specific implementation, it is worth noting that adjusting the angle between the first slider 3 and the second slider 4 can change the angle between the first measuring arm 1 and the second measuring arm 2. During use, it is necessary to ensure that the first measuring arm 1 and the second measuring arm 2 are perpendicular to the measured surface. At this time, the angle a read on the measuring plate 5 between the reference line 6 of the first measuring arm 1 and the reference line 6 of the second measuring arm 2 is the normal angle between the measured surfaces A and B.

[0022] Furthermore, the inner and outer rings of the bearing 8 are interference-fitted with rubber rings 9, and the outer walls of the two rubber rings 9 are detachably connected to the grooves of the first slider 3 and the second slider 4 respectively;

[0023] In the specific implementation process, it is worth noting that the two rubber rings 9 can improve the connection stability between the bearing 8 and the first slider 3 and the second slider 4;

[0024] Furthermore, friction strips 10 are installed on the inner walls of the first slider 3 and the second slider 4, and the outer walls of the two friction strips 10 are movably connected to the grooves of the first measuring arm 1 and the second measuring arm 2 respectively;

[0025] In the specific implementation process, it is worth noting that the friction strip 10 can increase the friction between the first slider 3 and the first measuring arm 1 and the second slider 4 and the second measuring arm 2, so as to ensure stability during measurement;

[0026] Furthermore, rubber pads 7 are installed at the bottom of the first measuring arm 1 and the second measuring arm 2;

[0027] In the specific implementation process, it is worth noting that the rubber pad 7 can increase the friction between the first measuring arm 1 and the second measuring arm 2 and the surface to be detected;

[0028] Furthermore, the tops of the first measuring arm 1 and the second measuring arm 2 are both machined with grinding grooves;

[0029] During the specific implementation, it is worth noting that the design of the grinding pattern allows the staff to more conveniently adjust the angle between the first measuring arm 1 and the second measuring arm 2;

[0030] Specifically, when using this angle gauge, the staff first adjusts the positions of the first measuring arm 1 and the second measuring arm 2 inside the first slider 3 and the second slider 4 respectively. After the adjustment is completed, the staff places the first measuring arm 1 and the second measuring arm 2 vertically on the surface of the measuring surface respectively. At this time, the angle of the object can be determined by the coordination between the reference line 6 and the measuring plate 5.

[0031] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An angle measuring tool, comprising a first measuring arm (1), characterized in that: The outer wall of the first measuring arm (1) is movably connected to a first slider (3), the inner wall of the first slider (3) is mounted with a bearing (8), the inner ring of the bearing (8) is mounted with a second slider (4), the inner wall of the second slider (4) is movably connected to a second measuring arm (2), the outer wall of the second slider (4) is mounted with a measuring plate (5), and the outer walls of the first measuring arm (1) and the second measuring arm (2) are both machined with a reference line (6).

2. The angle gauge according to claim 1, characterized in that: The inner and outer rings of the bearing (8) are both interference-fitted with rubber rings (9), and the outer walls of the two rubber rings (9) are detachably connected to the grooves of the first slider (3) and the second slider (4), respectively.

3. The angle gauge according to claim 1, characterized in that: The inner walls of the first sliding block (3) and the second sliding block (4) are both installed with friction strips (10), and the outer walls of the two friction strips (10) are movably connected to the grooves of the first measuring arm (1) and the second measuring arm (2), respectively.

4. The angle gauge according to claim 1, characterized in that: Rubber pads (7) are installed at the bottoms of the first measuring arm (1) and the second measuring arm (2).

5. The angle gauge according to claim 1, characterized in that: The tops of the first measuring arm (1) and the second measuring arm (2) are both machined with grinding grooves.

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