CN107677184B - Part surface hole position size detection tool - Google Patents

Abstract

The invention belongs to the field of machining detection and precision measurement, and particularly relates to a part surface hole position size detection tool which comprises a diameter scale, a measurement component and a positioning component, wherein a fixed base is fixed at one end of the diameter scale, a movable base is slidably sleeved at the other end of the diameter scale, a main vernier is slidably arranged on the diameter scale, and the measurement component is fixed at the bottom of the main vernier; the measuring assembly comprises an angle scale, an angle measuring scale and an auxiliary measuring scale, the angle scale is fixed on the main vernier, the angle measuring scale is rotatably arranged on the angle scale, the auxiliary measuring scale is fixed on the angle measuring scale, the auxiliary measuring scale is perpendicular to the axis of the angle scale, the auxiliary vernier is slidably arranged on the auxiliary measuring scale, and a positioning assembly is fixed at the bottom of the auxiliary vernier; the positioning assembly comprises a positioning rod, one end of the positioning rod is arranged on the auxiliary vernier, a plurality of measuring rods are arranged on the positioning rod, the measuring rods form an umbrella-shaped structure which is folded towards the measuring plane, and the positioning rod is parallel to the axis of the angle scale.

Description

A tool for detecting the position and size of holes on the surface of parts

technical field

The invention belongs to the field of machining detection and precision measurement, and in particular relates to a tool for detecting the position and size of a surface hole of a part.

Background technique

Drilling holes on the surface of parts is a common processing method in the field of machining, and due to actual functional requirements, the hole position and size of surface parts must be designed to be accurate and reasonable. In the process of actually detecting a part with surface distribution holes, the previous simple method If you use vernier calipers and other tools for measurement, first, it is impossible to accurately measure the position of the center of the hole. In this measurement process, it is always the local size measurement, not the overall positioning measurement, the result error is large, and the result obtained is often due to The problem of measurement personnel's habit cannot reach a consensus with the follow-up staff, which is not easy to record and understand. The invention provides a part surface hole position size detection tool to determine the complex distribution hole positions on the part surface, so that the part can better meet the design and production needs, and the operation is simple, the result is accurate, and has certain market promotion prospects.

SUMMARY OF THE INVENTION

In order to solve the problem existing in the prior art that the position of the hole on the surface of the part cannot be positioned and measured as a whole, the present invention provides a tool for detecting the position and size of the hole on the surface of the part.

In order to solve the above technical problems, the technical solution adopted in the present invention is as follows. A tool for detecting the position and size of a surface hole of a part includes a diameter scale, a measuring component and a positioning component. One end of the diameter scale is fixed with a fixed base, and the other end slides. The sleeve is provided with a movable base, a main vernier is slidably arranged on the diameter scale, and the measuring assembly is fixed at the bottom of the main vernier;

The measuring assembly includes an angle disc, an angle measuring disc and an auxiliary measuring ruler, the angle disc is fixed on the main vernier, the angle measuring disc is rotatably arranged on the angle disc, and the auxiliary measuring ruler is fixed on the main vernier. On the angle measuring disc, the auxiliary measuring ruler is perpendicular to the axis of the angle disc, the auxiliary vernier is slidably arranged on the auxiliary measuring ruler, and the positioning assembly is fixed at the bottom of the auxiliary vernier;

The positioning assembly includes a positioning rod whose one end is arranged on the auxiliary vernier, a plurality of measuring rods are arranged on the positioning rod, and the several measuring rods form an umbrella-shaped structure that is retracted toward the measurement plane. The axes of the angle discs are parallel.

Preferably, a counter is fixed on the main cursor.

Preferably, the upper end of the angle measuring plate is provided with a accommodating cavity matched with the angle plate, the bottom of the accommodating cavity is provided with a first through hole, and two sides of the first through hole are symmetrically arranged with the first through hole. A socket connected with a through hole, one end of the auxiliary measuring ruler is a cylinder, and one end of the cylinder close to the angle measuring disc extends outward with two inserts, and the inserts are matched with the socket. The cooperation of the insert and the socket can realize the convenient and quick assembly of the angle measuring disc and the auxiliary measuring ruler, which is beneficial to the replacement of the auxiliary measuring ruler.

Preferably, a conical protrusion for limiting the angle measuring disc extends on the outer circumference of the cylinder, and the conical protrusion is located between the insert and the auxiliary measuring ruler.

Preferably, the bottom end of the angle plate is extended with a mounting shaft along its axis, the cylinder body has a second through hole passing through it, and the angle measuring plate and the auxiliary measuring ruler pass through the first through hole respectively. and the second through hole is sleeved on the installation shaft and locked by a nut.

Further, a pointer is provided on the circumference of the angle measuring disc.

Further, the positioning assembly further includes a telescopic rod, one end of the telescopic rod is slidably arranged in the positioning rod, and the other end is provided with a conical table, and the outer circumference of the telescopic rod close to the conical table is fixed with a a lower joint, a sliding block is sleeved on the positioning rod, an upper joint is fixed on the sliding block, and an annular protrusion for limiting the sliding block extends on the outer circumference of one end of the positioning rod close to the conical table From then on, one end of the measuring rod is rotatably connected with the lower joint, and the other end is rotatably connected with the corresponding upper joint through the connecting rod, and the measuring rod and the connecting rod are rotatably connected. The positioning assembly changes the degree of shrinkage of the umbrella structure through the movement of the slider, which can satisfy the center positioning of holes of different diameters, thereby improving the application range of the tool for detecting the position and size of a surface hole of a part of the present invention.

Further, scales are provided on the diameter scale, the angle plate and the auxiliary measuring scale.

Further, the connection between the fixed base and the diameter scale is the zero point position of the scale, and the intersection of the auxiliary measuring scale and the axis of the angle disc is the zero point position of the scale.

Beneficial effects: The tool for detecting the position and size of the hole on the surface of the part can realize the overall positioning measurement of the position and size of the hole on the surface of the part. the scope of application of the present invention. The tool for detecting the hole position and size on the surface of the part can determine the complexly distributed hole positions on the surface of the part, so that the part can better meet the design and production needs, and the operation is simple and the result is accurate, and has a certain market promotion prospect.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the part surface hole position size detection tool of the present invention;

Fig. 2 is the component exploded schematic diagram of the part surface hole position size detection tool of the present invention;

In the figure, 1. Diameter ruler, 2. Fixed base, 3. Active base, 4. Main cursor, 5. Angle plate, 5-1, Installation shaft, 6. Angle measuring plate, 6-1, accommodating cavity, 6 -2, first through hole, 6-3, socket, 7, secondary measuring ruler, 7-1, cylinder, 7-2, insert, 7-3, conical protrusion, 7-4, second pass Hole, 8, Vice Vernier, 9, Positioning Rod, 9-1, Annular Protrusion, 10, Measuring Rod, 11, Counter, 12, Nut, 13, Pointer, 14, Telescopic Rod, 14-1 Conical Table, 15 , lower joint, 16, slider, 17, upper joint, 18, connecting rod.

Detailed ways

Example

As shown in Figures 1-2, a tool for detecting the position and size of a surface hole of a part includes a diameter scale 1, a measuring component and a positioning component. One end of the diameter scale 1 is fixed with a fixed base 2, and the other end of the sliding sleeve is provided with a movable The base 3 is slidably provided with a main vernier 4 on the diameter scale 1 , and the measuring assembly is fixed at the bottom of the main vernier 4 ; the counter 11 is fixed on the main vernier 4 .

The measuring assembly includes an angle disc 5, an angle measuring disc 6 and a secondary measuring ruler 7. The angle disc 5 is fixed on the main vernier 4, and the angle measuring disc 6 is rotatably arranged on the angle disc 5. The auxiliary measuring ruler 7 is fixed on the angle measuring disc 6, the auxiliary measuring ruler 7 is perpendicular to the axis of the angle disc 5, and the auxiliary measuring ruler 7 is slidably provided with an auxiliary vernier 8, and the auxiliary vernier 8 The bottom of the locating component is fixed;

The positioning assembly includes a positioning rod 9 whose one end is arranged on the auxiliary cursor 8, and a plurality of measuring rods 10 are arranged on the positioning rod 9. The positioning rod 9 is parallel to the axis of the angle plate 5 .

A pointer 13 is provided on the circumference of the angle measuring disc 6 . The upper end of the angle measuring plate 6 is provided with a accommodating cavity 6-1 which is matched with the angle plate 5, and the bottom of the accommodating cavity 6-1 is provided with a first through hole 6-2. The first through hole 6 -2 Both sides are symmetrically provided with a socket 6-3 communicating with the first through hole 6-2, one end of the auxiliary measuring ruler 7 is a cylinder 7-1, and the cylinder 7-1 is close to the angle One end of the measuring disc 6 extends outward with two inserts 7-2, and the inserts 7-2 are matched with the sockets 6-3. The conical protrusion 7-3 of the angle measuring disc 6, the conical protrusion 7-3 is located between the insert 7-2 and the auxiliary measuring ruler 7.

The bottom end of the angle plate 5 is extended with a mounting shaft 5-1 along its axis, the cylindrical body 7-1 has a second through hole 7-4, the angle measuring plate 6 and the auxiliary measuring ruler 7 are respectively sleeved on the installation shaft 5-1 through the first through hole 6-2 and the second through hole 7-4, and are locked by the nut 12.

The positioning assembly further includes a telescopic rod 14 , one end of the telescopic rod 14 is slidably arranged in the positioning rod 9 , and the other end is provided with a conical table 14 - 1 , and the telescopic rod 14 is close to the conical table 14 . A lower joint 15 is fixed on the outer circumference of -1, a slider 16 is sleeved on the positioning rod 9, an upper joint 17 is fixed on the slider 16, and the positioning rod 9 is close to the conical table 14-1 An annular protrusion 9-1 for limiting the slider 16 extends on the outer circumference of one end of the measuring rod 10. One end of the measuring rod 10 is rotatably connected with the lower joint 15, and the other end is rotatably connected with the corresponding upper joint 17 through the connecting rod 18. The measuring rod 10 and the connecting rod 18 are rotatably connected.

The diameter scale 1 , the angle plate 5 and the auxiliary measuring scale 7 are all provided with scales. The connection between the fixed base 2 and the diameter scale 1 is the zero point position of the scale, and the junction of the axis of the auxiliary measuring scale 7 and the angle plate 5 is the zero point position of the scale.

It works as follows:

Before the measurement, the main vernier 4, the auxiliary vernier 8 and the angle measuring disc 6 are reset to zero;

Then find the center of the surface of the part to be inspected and establish a coordinate system. For example, when the part to be inspected is a disc-shaped part, move the movable base 3 to make the fixed base 2 and the movable base 3 fit on both sides of the part to be inspected. Ruler 1 measures the diameter of the part to be inspected. At this time, the middle point of the diameter ruler 1 is the center of the disc-shaped part, and a coordinate system is established based on the center of the circle; if the part to be inspected is a rectangular part, move the movable base 3 to measure. Determine the length of the adjacent two sides of the rectangular part, determine the center point of the surface to be measured of the rectangular part according to the intersection of the vertical bisectors of the adjacent two sides, and establish a coordinate system with this center point;

Move the main cursor 4 to the center of the part, then turn the angle measuring disc 6 and move the positioning rod 9, use the positioning assembly to find the center of the hole, read the reading of the auxiliary measuring ruler 7 to determine the distance from the center of the hole to the center of the part, read The reading of the angle measuring disc 6 determines the rotation angle value, and then the position size of the hole on the surface of the part can be obtained.

Claims (9)

1. A tool for detecting the position size of a surface hole of a part, characterized in that it comprises a diameter ruler (1), a measuring assembly and a positioning assembly, one end of the diameter ruler (1) is fixed with a fixed base (2), and the other end slides A movable base (3) is sleeved, a main vernier (4) is slidably arranged on the diameter scale (1), and the measuring assembly is fixed at the bottom of the main vernier (4); The measuring assembly includes an angle disc (5), an angle measuring disc (6) and an auxiliary measuring ruler (7), the angle disc (5) is fixed on the main vernier (4), and the angle measuring disc (6) ) is rotatably arranged on the angle plate (5), the auxiliary measuring ruler (7) is fixed on the angle measuring plate (6), and the auxiliary measuring ruler (7) is connected to the angle plate (5). The axis is vertical, an auxiliary vernier (8) is slidably arranged on the auxiliary measuring ruler (7), and the positioning assembly is fixed at the bottom of the auxiliary vernier (8); The positioning assembly includes a positioning rod (9) whose one end is arranged on the auxiliary cursor (8), a plurality of measuring rods (10) are arranged on the positioning rod (9), and the plurality of measuring rods (10) form a direction For the umbrella-like structure with the measurement plane folded, the positioning rod (9) is parallel to the axis of the angle plate (5). 2 . The tool for detecting the position and size of holes on the surface of a part according to claim 1 , wherein a counter ( 11 ) is fixed on the main cursor ( 4 ). 3 . 3. The tool for detecting the position and size of a surface hole of a part according to claim 1, wherein the upper end of the angle measuring disc (6) is provided with a accommodating cavity (6-1) that cooperates with the angle disc (5). , the bottom of the accommodating cavity (6-1) is provided with a first through hole (6-2), and the first through hole (6-2) is symmetrically arranged with the first through hole (6-2) on both sides. 2) A connected socket (6-3), one end of the auxiliary measuring ruler (7) is a cylinder (7-1), and the cylinder (7-1) is close to one end of the angle measuring disc (6) There are two inserts (7-2) extending outward, and the inserts (7-2) are matched with the sockets (6-3). 4. The tool for detecting the position and size of a hole on the surface of a part according to claim 3, characterized in that: the outer circumference of the cylinder (7-1) is extended with a conical protrusion for limiting the angle measuring disc (6). (7-3), the conical protrusion (7-3) is located between the insert (7-2) and the auxiliary measuring ruler (7). 5. The tool for detecting the position and size of a hole on the surface of a part according to claim 4, characterized in that: the bottom end of the angle plate (5) is extended with a mounting shaft (5-1) along its axis, and the cylinder ( A second through hole (7-4) runs through the 7-1), and the angle measuring disc (6) and the auxiliary measuring ruler (7) pass through the first through hole (6-2) and the The second through hole (7-4) is sleeved on the installation shaft (5-1), and is locked by a nut (12). 6 . The tool for detecting the position and size of holes on the surface of a part according to claim 1 , wherein a pointer ( 13 ) is provided on the circumference of the angle measuring disc ( 6 ). 7 . 7. The tool for detecting the position and size of a surface hole of a part according to claim 1, wherein the positioning assembly further comprises a telescopic rod (14), and one end of the telescopic rod (14) is slidably arranged on the positioning rod (14). 9), the other end is provided with a conical table (14-1), a lower joint (15) is fixed on the outer circumference of the telescopic rod (14) close to the conical table (14-1), and the positioning rod (9) A slider (16) is sleeved on the upper part, an upper joint (17) is fixed on the slider (16), and the positioning rod (9) is close to the outer periphery of one end of the conical table (14-1). An annular protrusion (9-1) for limiting the sliding block (16) is extended on the upper part, one end of the measuring rod (10) is rotatably connected with the lower joint (15), and the other end is connected with the corresponding lower joint (15) through the connecting rod (18). The upper joint (17) is connected in rotation, and the measuring rod (10) and the connecting rod (18) are connected in rotation. 8. The tool for detecting the position and size of holes on the surface of a part according to claim 1, characterized in that: the diameter scale (1), the angle plate (5) and the auxiliary measuring scale (7) are all provided with scales . 9 . The tool for detecting the position and size of holes on the surface of a part according to claim 8 , wherein the connection between the fixed base ( 2 ) and the diameter scale ( 1 ) is the zero point position of the scale, and the The intersection of the axis center of the auxiliary measuring ruler (7) and the angle plate (5) is the zero point position of the scale.

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