A gauge and method for measuring the distance from the side of a forming groove to the center of a hole

Abstract

The present invention discloses a gauge and method for measuring the distance from the side of a forming groove to the center of a hole, comprising a bottom plate, a positioning pin, a screw, an upper slider, a lower slider, a plug gauge and a reference plate. The screw pushes the upper slider to slide on the lower slider and lifts the measured part to a non-rotatable position. The through-end measuring part and the stop-end measuring part of the plug gauge are pressed against the reference surface of the reference plate and move downward along the reference surface of the reference plate to measure the distance from the side of the forming groove to the center of the hole. The gauge disclosed by the present invention has a simple structure and is easy to manufacture. The gauge can be used at the work site, which improves accuracy and work efficiency. The gauge operation method is simple, and the plug gauge can be used to determine whether the required measurement size is qualified.

Description

Technical Field

[0001] The invention relates to a mechanical gauge and method, and in particular to a gauge and method for measuring the distance from the side of a forming groove to the center of a hole. Background Art

[0002] See also Figure 1 Some special machines have a part 9 to be measured, and the part 9 to be measured includes a body 9-1 and a through hole 9-3 provided at the upper end of the body 9-1. The body 9-1 extends to the left and upwardly has a protrusion 9-2, and the inner measuring surface B of the protrusion 9-2 forms a first angle α with the vertical line of the through hole 9-3, and there is a preset distance L between the measuring surface B and the through hole 9-3. The lower end of the body 9-1 is a positioning surface A. The preset distance L between the measuring surface B and the through hole 9-3 is a distance that must be controlled within the specified maximum and minimum size ranges.

[0003] Although the preset distance L is a straight-line distance, since it is the distance between the plane and the center of the hole, and the center of the hole is a spatial point, the distance value cannot be directly measured even on three-coordinate measuring instruments, and the detection is cumbersome and inefficient. Summary of the invention

[0004] The invention discloses a distance gauge for measuring the distance from the side surface of a forming groove to the center of a hole, which directly measures the distance from the side surface of the groove to the center.

[0005] The present invention discloses a gauge for measuring the distance from the side of a forming groove to the center of a hole, comprising a bottom plate, a positioning pin, a screw, an upper slider, a lower slider, a plug gauge and a reference plate;

[0006] The bottom plate is provided with a positioning hole;

[0007] The bottom of the positioning pin is inserted into and fixedly matched with the positioning hole of the bottom plate, and the top of the positioning pin is used to be inserted into and fixedly matched with the through hole of the measured part;

[0008] The lower slider is trapezoidal in shape, and its bottom edge is horizontally fixed on the bottom plate;

[0009] The upper slider is trapezoidal and the lower plane cooperates with the upper plane of the lower slider in a sliding slope; the upper plane of the upper slider is used to horizontally abut the lower end positioning surface of the measured part; a T-shaped slot is provided at the right end of the upper slider to facilitate the screw to be screwed in and push the upper slider to slide leftward along the upper plane of the lower slider, so that the upper plane of the upper slider supports the lower end positioning surface of the measured part and moves upward to a position where the measured part cannot rotate;

[0010] The reference plate is fixed on the bottom plate, and the second angle between the center line of the positioning pin of the positioning pin and the reference surface of the reference plate is equal to the first angle between the center line of the positioning hole of the measured part and the measuring surface of the measured part;

[0011] The plug gauge comprises a through-end measuring part at the lower end and a stop-end measuring part at the upper end; the through-end measuring part or the stop-end measuring part of the plug gauge is closely pressed against the reference surface of the reference plate and moves downward along the reference surface of the reference plate.

[0012] Furthermore, it also includes a supporting block, which supports the screw at a certain height.

[0013] Furthermore, the bottom plate is L-shaped.

[0014] Furthermore, the bottom diameter of the locating pin is equal to the diameter of the locating hole of the bottom plate, and the top diameter of the locating pin is equal to the minimum value of the through hole diameter of the measured part.

[0015] Furthermore, the trapezoidal angle of the upper slider is equal to the trapezoidal angle of the lower slider.

[0016] Furthermore, the measuring size of the through end of the plug gauge is the difference between the minimum value of the preset distance from the center of the locating hole of the measured part to the measuring surface and the distance from the center of the locating pin to the reference surface of the reference plate; the measuring size of the stop end of the plug gauge is the difference between the maximum value of the preset distance from the center of the locating hole of the measured part to the measuring surface and the distance from the center of the locating pin to the reference surface of the reference plate.

[0017] Furthermore, the nut portion of the screw is provided with a mesh pattern.

[0018] The present invention also discloses a method for measuring the distance from the side of the forming groove to the center of the hole using the above-mentioned gauge, comprising the following steps:

[0019] 1) Pass the locating hole of the part to be tested through the top of the locating pin and place it against the base plate;

[0020] 2) Screw the screw into the T-shaped slot on the right end of the upper slider, rotate the screw to move to the left, push the upper slider to slide to the left along the upper plane of the lower slider, and the upper plane of the upper slider is completely fitted with the positioning surface of the measured part until the measured part reaches a position where it cannot rotate;

[0021] 3) Place the through end measuring part of the plug gauge against the reference surface of the reference plate and move it downward along the reference surface of the reference plate; then rotate the plug gauge 180°, place the stop end measuring part of the plug gauge against the reference surface of the reference plate and move it downward along the reference surface of the reference plate;

[0022] 4) Determine whether the preset distance from the center of the positioning hole of the measured part to the measuring surface is qualified:

[0023] If the through-end measuring portion of the plug gauge can pass through the measuring surface of the measured part, but the stop-end measuring portion cannot pass through the measuring surface of the measured part, it is judged that the preset distance from the center of the positioning hole of the measured part to the measuring surface is qualified;

[0024] If the through-end measuring portion of the plug gauge cannot pass through the measuring surface of the measured part, or the stop-end measuring portion of the plug gauge can pass through the measuring surface of the measured part, it is judged that the preset distance from the center of the locating hole of the measured part to the measuring surface is unqualified.

[0025] The beneficial technical effects of the present invention are:

[0026] 1) The gauge has a simple structure and is easy to manufacture.

[0027] 2) Gauges can be used on the job site, improving accuracy and work efficiency.

[0028] 3) The gauge operation method is simple, and the plug gauge 7 can be used to determine whether the required measurement size is qualified. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the tested part 9;

[0030] Figure 2 A schematic diagram of the structure of a gauge for measuring the distance from the side of a forming groove to the center of a hole according to the present invention;

[0031] Figure 3 This is a working diagram for measuring the distance from the side of the forming groove to the center of the hole;

[0032] Among them, 9 is the part to be measured, 9-1 is the body, 9-2 is the protrusion, 9-3 is the through hole 9-3, d is the diameter of the through hole, α is the first angle, α1 is the second angle, L is the preset distance, B is the measuring surface, 1 is the base plate, 2 is the positioning pin, 3 is the screw, 4 is the support block, 5 is the upper slider, 6 is the lower slider, 7 is the plug gauge, 8 is the reference plate, L1 is the distance from the center of the positioning pin to the reference plane of the reference plate, L2 is the measurement size of the through end of the plug gauge 7, and L3 is the measurement size of the stop end of the plug gauge 7. DETAILED DESCRIPTION

[0033] The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0034] A gauge for measuring the distance from the side of a forming groove to the center of a hole comprises a base plate 1, a positioning pin 2, a screw 3, a support block 4, an upper slider 5, a lower slider 6, a plug gauge 7 and a reference plate 8.

[0035] The bottom plate 1 is L-shaped and has a positioning hole. The bottom of the positioning pin 2 is inserted and fixedly matched with the positioning hole of the bottom plate 1, and the top of the positioning pin 2 is used to be inserted into and fixedly matched with the through hole 9-3 of the measured part 9. The bottom diameter of the positioning pin 2 is equal to the diameter of the positioning hole of the bottom plate 1, and the top diameter of the positioning pin 2 is equal to the minimum value of the diameter of the through hole 9-3 of the measured part 9.

[0036] The lower slider 6 is trapezoidal, and its bottom edge is horizontally fixed on the bottom plate 1. The upper slider 5 is trapezoidal, and its lower plane cooperates with the upper plane of the lower slider 6 in a sliding slope.

[0037] The upper plane of the upper slider 5 is used to horizontally abut against the lower end positioning surface A of the measured part 9. A T-shaped slot is provided at the right end of the upper slider 5 to facilitate the screw 3 to be screwed in and push the upper slider 5 to slide to the left along the upper plane of the lower slider 6, so that the upper plane of the upper slider 5 holds the lower end positioning surface A of the measured part 9 and moves upward to a position where the measured part 9 cannot rotate. The nut of the screw 3 is provided with a mesh. The support block 4 supports the screw 3 at a certain height. The trapezoidal angle of the upper slider 5 is equal to the trapezoidal angle of the lower slider 6.

[0038] The reference plate 8 is fixed on the base plate 1 , and the second angle α1 between the center line of the locating pin 2 and the reference plane of the reference plate 8 and the first angle α between the center line of the locating hole of the measured part 9 and the measuring plane B of the measured part 9 are equal to each other.

[0039] The plug gauge 7 includes a through-end measuring portion at the lower end and a stop-end measuring portion at the upper end; the through-end measuring portion or the stop-end measuring portion of the plug gauge 7 is placed close to the reference surface of the reference plate 8 and moves downward along the reference surface of the reference plate 8. The through-end measuring portion dimension L2 of the plug gauge 7 is the difference between the minimum value of the preset distance L from the center of the positioning hole of the measured part 9 to the measuring surface B and the distance L1 from the center of the positioning pin 2 to the reference surface of the reference plate 8; the stop-end measuring portion dimension L3 of the plug gauge 7 is the difference between the maximum value of the preset distance L from the center of the positioning hole of the measured part 9 to the measuring surface B and the distance L1 from the center of the positioning pin 2 to the reference surface of the reference plate 8.

[0040] The method for measuring the distance from the side of the forming groove to the center of the hole using the above-mentioned gauge comprises the following steps:

[0041] 1) Pass the positioning hole 9-4 of the tested part 9 through the top of the positioning pin 2 and place it against the bottom plate 1;

[0042] 2) Screw 3 is screwed into the T-shaped slot set at the right end of the upper slider 5, and the screw 3 is rotated to move to the left, pushing the upper slider 5 to slide to the left along the upper plane of the lower slider 6, and the upper plane of the upper slider 5 is completely fitted with the positioning surface A of the measured part 9 until the measured part 9 reaches a position where it cannot rotate;

[0043] 3) Place the through-end measuring part of the plug gauge 7 against the reference surface of the reference plate 8 and move it downward along the reference surface of the reference plate 8; then rotate the plug gauge 7 180°, place the stop-end measuring part of the plug gauge 7 against the reference surface of the reference plate 8 and move it downward along the reference surface of the reference plate 8;

[0044] 4) Determine whether the preset distance L from the center of the positioning hole of the measured part 9 to the measuring surface B is qualified:

[0045] If the through-end measuring portion of the plug gauge 7 can pass through the measuring surface B of the measured part 9, but the stop-end measuring portion cannot pass through the measuring surface B of the measured part 9, then it is judged that the preset distance L from the center of the positioning hole of the measured part 9 to the measuring surface B is qualified;

[0046] If the through-end measuring portion of the plug gauge 7 cannot pass through the measuring surface B of the measured part 9, or the stop-end measuring portion of the plug gauge 7 can pass through the measuring surface B of the measured part 9, it is judged that the preset distance L from the center of the locating hole of the measured part 9 to the measuring surface B is unqualified.

Claims

1. A method for measuring the distance from the side of a forming groove to the center of a hole with a gauge, characterized in that: Contains the following steps, 1) Place the positioning hole (9-4) of the part to be tested (9) through the top of the positioning pin (2) and against the base plate (1); 2) Screw (3) is screwed into the T-shaped slot provided at the right end of the upper slider (5), and the screw (3) is rotated to move to the left, pushing the upper slider (5) to slide to the left along the upper plane of the lower slider (6), and the upper plane of the upper slider (5) is completely fitted with the positioning surface (A) of the measured part (9) until the measured part (9) reaches a position where it cannot rotate; 3) Place the through-end measuring portion of the plug gauge (7) against the reference surface of the reference plate (8) and move it downward along the reference surface of the reference plate (8); then rotate the plug gauge (7) 180°, place the stop-end measuring portion of the plug gauge (7) against the reference surface of the reference plate (8), and move it downward along the reference surface of the reference plate (8); 4) Determine whether the preset distance (L) from the center of the positioning hole of the measured part (9) to the measuring surface (B) is qualified: If the through-end measuring portion of the plug gauge (7) can pass through the measuring surface (B) of the measured part (9), and the stop-end measuring portion cannot pass through the measuring surface (B) of the measured part (9), then it is judged that the preset distance (L) from the center of the positioning hole of the measured part (9) to the measuring surface (B) is qualified; If the through-end measuring portion of the plug gauge (7) cannot pass through the measuring surface (B) of the measured part (9), or the stop-end measuring portion of the plug gauge (7) can pass through the measuring surface (B) of the measured part (9), then the preset distance (L) from the center of the positioning hole of the measured part (9) to the measuring surface (B) is judged to be unqualified; The gauge for measuring the distance from the side of the forming groove to the center of the hole comprises a base plate (1), a positioning pin (2), a screw (3), an upper slider (5), a lower slider (6), a plug gauge (7) and a reference plate (8); The bottom plate (1) has a positioning hole; The bottom of the positioning pin (2) is inserted into and fixedly matched with the positioning hole of the bottom plate (1), and the top of the positioning pin (2) is used to be inserted into the through hole (9-3) of the measured part (9) and fixedly matched therewith; The lower slider (6) is trapezoidal in shape, and its bottom edge is horizontally fixed on the bottom plate (1); The upper slider (5) is trapezoidal and its lower plane is matched with the upper plane of the lower slider (6) in a sliding slope; the upper plane of the upper slider (5) is used to horizontally support the lower end positioning surface (A) of the measured part (9); a T-shaped slot is provided at the right end of the upper slider (5) to facilitate the screw (3) to be screwed in and push the upper slider (5) to slide leftward along the upper plane of the lower slider (6), so that the upper plane of the upper slider (5) supports the lower end positioning surface (A) of the measured part (9) and moves upward to a position where the measured part (9) cannot rotate; The reference plate (8) is fixed on the base plate (1), and the angle between the center line of the positioning pin of the positioning pin (2) and the reference surface of the reference plate (8) is equal to the angle between the center line of the positioning hole of the measured part (9) and the measuring surface (B) of the measured part (9); The plug gauge (7) comprises a through-end measuring portion at the lower end and a stop-end measuring portion at the upper end; the through-end measuring portion or the stop-end measuring portion of the plug gauge (7) is closely abutted against the reference surface of the reference plate (8) and moves downward along the reference surface of the reference plate (8).

2. The method according to claim 1, wherein: It also includes a support block (4), which supports the screw (3) at a certain height.

3. The method according to claim 2, wherein: The bottom plate (1) is L-shaped.

4. The method according to claim 3, wherein: The bottom diameter of the positioning pin (2) is equal to the diameter of the positioning hole of the bottom plate (1), and the top diameter of the positioning pin (2) is equal to the minimum value of the diameter of the through hole (9-3) of the measured part (9).

5. The method according to claim 4, wherein: The trapezoidal angle of the upper slider (5) is equal to the trapezoidal angle of the lower slider (6).

6. The method according to claim 5, wherein: The through-end measuring portion size (L2) of the plug gauge (7) is the difference between the minimum value of the preset distance (L) from the center of the positioning hole of the measured part (9) to the measuring surface (B) and the distance (L1) from the center of the positioning pin (2) to the reference surface of the reference plate (8); the stop-end measuring portion size (L3) of the plug gauge (7) is the difference between the maximum value of the preset distance (L) from the center of the positioning hole of the measured part (9) to the measuring surface (B) and the distance (L1) from the center of the positioning pin (2) to the reference surface of the reference plate (8).

7. The method according to claim 6, wherein: The nut portion of the screw (3) is provided with a mesh pattern.

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