Auxiliary tool for collecting hole axis

Abstract

The utility model discloses a hole axis acquisition auxiliary tool, relates to machining technical field, including slotting probe and strutting piece, slotting probe is used for stretching into the hole to be measured, the center of slotting probe is provided with through hole, the axis of through hole coincides with the axis of slotting probe, the slotting probe is provided with measuring notch portion, and the strutting piece is provided with the measuring notch portion. The measuring notch part penetrates through the notch, the penetrating notch enables the penetrating hole to be communicated with the outside of the slotting measuring head, the measuring notch part is provided with a first measuring surface and a second measuring surface, and the plane where the first measuring surface is located and the plane where the second measuring surface is located intersect at the axis of the slotting measuring head; the opening part is used for stretching into the through hole, and the opening part can open the slotting measuring head, so that the peripheral side wall of the slotting measuring head is tightly attached to the inner wall of the hole to be measured; the device is simple in operation and accurate in measurement.

Description

Technical Field

[0001] The utility model relates to the technical field of machining, in particular to an auxiliary tool for collecting hole axes. Background Art

[0002] As Figure 1 shown, spatial holes are often provided on thin-walled parts such as mounting discs and support discs in a propeller fairing for riveting or installation. When measuring the circumferential angle and inclination angle of the holes by the three-coordinate method, due to the influence of the wall thickness of such spatial holes and insufficient hole depth, the hole axes cannot be accurately collected. Therefore, there is an urgent need for an auxiliary tool for collecting hole axes with simple operation and accurate measurement. Summary of the Utility Model

[0003] The purpose of the utility model is to provide an auxiliary tool for collecting hole axes to solve the problems existing in the above-mentioned prior art, with simple operation and accurate measurement.

[0004] To achieve the above purpose, the utility model provides the following solution:

[0005] The utility model provides an auxiliary tool for collecting hole axes, including a grooved probe and a spreading member. The grooved probe is used to extend into the hole to be measured. A through hole is provided in the center of the grooved probe, and the axis of the through hole coincides with the axis of the grooved probe. The grooved probe has a measurement notch, and the measurement notch penetrates through, and the through notch communicates the through hole with the outside of the grooved probe. The measurement notch has a first measurement surface and a second measurement surface, and the plane where the first measurement surface is located intersects the plane where the second measurement surface is located at the axis of the grooved probe. The spreading member is used to extend into the through hole, and the spreading member can spread the grooved probe to make the outer peripheral side wall of the grooved probe closely adhere to the inner wall of the hole to be measured.

[0006] Preferably, the spreading member includes a bolt and a nut. The bolt has a head, a rod portion, and a threaded portion in sequence. The diameter of the head is larger than that of the rod portion, and the connection between the head and the rod portion is a tapered portion. The tapered portion gradually contracts from the head to the rod portion. The rod portion is used to pass through the through hole, and the tapered portion can spread the grooved probe to make the outer peripheral side wall of the grooved probe closely adhere to the inner wall of the hole to be measured. The nut is used to be threadedly connected with the threaded portion.

[0007] Preferably, the inner wall at one end of the through hole is a tapered surface, and the tapered surface is used to contact the outer side surface of the tapered portion.

[0008] Preferably, a hexagonal groove is provided in the head.

[0009] Preferably, a notch groove is provided on the portion of the slotted probe extending into the hole to be measured.

[0010] Preferably, the first measuring plane is perpendicular to the second measuring plane.

[0011] Preferably, one end of the slotted probe is a large head end, and the other end is a small head end, and the small head end is used to extend into the through hole.

[0012] Compared with the prior art, the utility model has achieved the following technical effects:

[0013] The utility model provides a hole axis acquisition auxiliary tool, a slotted probe is used to extend into the hole to be measured, and a propping piece is used to extend into the through hole. When the three-coordinate method is used for measurement, first the mounting plate to be measured workpiece is fixed on the detection platform, the slotted probe is extended into the hole to be measured, and the propping piece is extended into the through hole, and the slotted probe is propped open by the propping piece so that the outer peripheral side wall of the slotted probe is tightly attached to the inner wall of the hole to be measured, so as to realize the tire expansion clamping positioning. At this time, the axis of the slotted probe coincides with the axis of the hole to be measured. The three-coordinate measuring instrument only needs to collect data of the first measuring surface and the second measuring surface, that is, collect three points on the first measuring surface to form a fitting plane of the first measuring surface, collect three points on the second measuring surface to form a fitting plane of the second measuring surface, and calculate the intersection line of the two fitting planes in the machine tool computer software, which is the axis of the hole to be measured. The operation is simple and the measurement is accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 A schematic diagram of the use of the hole axis acquisition auxiliary tool provided by the utility model;

[0016] Figure 2 for Figure 1 A magnified view of the center hole axis acquisition auxiliary tool;

[0017] Figure 3 A front view of the hole axis acquisition auxiliary tool provided by the utility model;

[0018] Figure 4 for Figure 3 The left view of the hole axis acquisition auxiliary tool;

[0019] Figure 5 for Figure 3 A stereogram of a hole axis acquisition auxiliary tool;

[0020] Figure 6 is Figure 5 a schematic diagram of the grooved probe in

[0021] In the figure: 1 - grooved probe, 2 - through hole, 3 - first measuring surface, 4 - second measuring surface, 5 - nut, 6 - head, 7 - rod part, 8 - threaded part, 9 - tapered part, 10 - conical surface, 11 - hexagonal groove, 12 - notch groove. Specific implementation mode

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] The purpose of the present invention is to provide an auxiliary tool for collecting the axis of a hole to solve the problems existing in the above-mentioned prior art, with simple operation and accurate measurement.

[0024] To make the above objects, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation modes.

[0025] As Figures 1 - 6 shown, the present invention provides an auxiliary tool for collecting the axis of a hole, including a grooved probe 1 and a spreading member. The grooved probe 1 is used to extend into the hole to be measured. A through hole 2 is provided in the center of the grooved probe 1, and the axis of the through hole 2 coincides with the axis of the grooved probe 1. The grooved probe 1 has a measuring notch part, and the measuring notch part penetrates the notch. The through notch communicates the through hole 2 with the outside of the grooved probe 1. The measuring notch part has a first measuring surface 3 and a second measuring surface 4. The plane where the first measuring surface 3 is located intersects the plane where the second measuring surface 4 is located at the axis of the grooved probe 1. The spreading member is used to extend into the through hole 2, and the spreading member can spread the grooved probe 1 so that the outer peripheral side wall of the grooved probe 1 is closely attached to the inner wall of the hole to be measured.

[0026] The hole axis acquisition auxiliary tool provided by the present utility model, the grooved probe 1 is used to extend into the hole to be measured, and the expanding member is used to extend into the through hole 2. When measuring by the three-coordinate method, first, the mounting plate and the workpiece to be measured are fixed on the detection platform. The grooved probe 1 is extended into the hole to be measured, and the expanding member is extended into the through hole 2. The expanding member is used to expand the grooved probe 1 so that the outer peripheral side wall of the grooved probe 1 is closely attached to the inner wall of the hole to be measured, realizing expansion clamping positioning. At this time, the axis of the grooved probe 1 coincides with the axis of the hole to be measured. The three-coordinate measuring instrument only needs to collect the data of the first measuring surface 3 and the second measuring surface 4, that is, three points are collected on the first measuring surface 3 to form the fitting plane of the first measuring surface 3, and three points are collected on the second measuring surface 4 to form the fitting plane of the second measuring surface 4. The intersection line of the two fitting planes is calculated in the machine tool computer software, which is the axis of the hole to be measured. The operation is simple and the measurement is accurate.

[0027] As a relatively preferred implementation manner of this embodiment, the expanding member includes a bolt and a nut 5. The bolt is successively provided with a head 6, a rod portion 7 and a threaded portion 8. The diameter of the head 6 is larger than that of the rod portion 7. The connection portion between the head 6 and the rod portion 7 is a tapered portion 9. The tapered portion 9 gradually contracts from the head 6 to the rod portion 7. The rod portion 7 is used to pass through the through hole 2. The tapered portion 9 can expand the grooved probe 1 so that the outer peripheral side wall of the grooved probe 1 is closely attached to the inner wall of the hole to be measured. The nut 5 is used to be threadedly connected with the threaded portion 8. After the rod portion 7 passes through the through hole 2, as the nut 5 is tightened, the tapered portion 9 gradually moves towards the nut 5 direction, thereby expanding the grooved probe 1.

[0028] As a relatively preferred implementation manner of this embodiment, the inner wall at one end of the through hole 2 is a tapered surface 10, and the tapered surface 10 is used to contact the outer side surface of the tapered portion 9 to facilitate force transmission.

[0029] As a relatively preferred implementation manner of this embodiment, the head 6 is provided with a hexagonal groove 11 to facilitate fixing the angular direction of the bolt by using a hexagonal wrench, and further facilitate tightening the nut 5 on the bolt.

[0030] As a relatively preferred implementation manner of this embodiment, a notch groove 12 is provided on the part of the grooved probe 1 that extends into the hole to be measured, to facilitate adapting to the deformation of the part of the grooved probe 1 that extends into the hole to be measured; in this embodiment, the groove width is about 0.5 mm.

[0031] As a relatively preferred implementation manner of this embodiment, the first measuring surface 3 is perpendicular to the second measuring surface 4, with a simple structure and convenient for measurement use; in this embodiment, the roughness of the first measuring surface 3 and the second measuring surface 4 is Ra0.4.

[0032] As a relatively preferred embodiment of this embodiment, one end of the grooved probe 1 is a large-head end, and the other end is a small-head end. The small-head end is used to extend into the through hole 2. The small-head end is convenient for extending into the through hole 2, and the large-head end provides a larger area of the point-sampling region, which is convenient for obtaining the fitting plane of the first measurement surface 3 and the fitting plane of the second measurement surface 4, and is convenient for measurement use.

[0033] In the present utility model, specific examples are used to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model; at the same time, for those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present utility model.

Claims

1. A hole axis acquisition auxiliary tool, characterized in that: It includes a slotted probe and a support member, the slotted probe is used to extend into a hole to be measured, a through hole is provided in the center of the slotted probe, the axis of the through hole coincides with the axis of the slotted probe, the slotted probe is provided with a measuring notch portion, the measuring notch portion is a through notch, the through notch connects the through hole with the outside of the slotted probe, the measuring notch portion has a first measuring surface and a second measuring surface, the plane where the first measuring surface is located and the plane where the second measuring surface is located intersect at the axis of the slotted probe; the support member is used to extend into the through hole, and the support member can support the slotted probe so that the outer peripheral side wall of the slotted probe is tightly attached to the inner wall of the hole to be measured.

2. The hole axis acquisition auxiliary tool according to claim 1, characterized in that: The support member includes a bolt and a nut. The bolt is provided with a head, a rod and a threaded portion in sequence. The diameter of the head is greater than the diameter of the rod. The connection between the head and the rod is a cone. The cone gradually shrinks from the head to the rod. The rod is used to pass through the through hole. The cone can support the slotted probe so that the outer peripheral side wall of the slotted probe is tightly attached to the inner wall of the hole to be measured. The nut is used to be threadedly connected with the threaded portion.

3. The hole axis acquisition auxiliary tool according to claim 2, characterized in that: An inner wall at one end of the through hole is a tapered surface, and the tapered surface is used to contact the outer side surface of the cone portion.

4. The hole axis acquisition auxiliary tool according to claim 2, characterized in that: The head is provided with a hexagonal groove.

5. The hole axis acquisition auxiliary tool according to claim 1, characterized in that: A notch groove is formed on the portion of the slotted probe extending into the hole to be measured.

6. The hole axis acquisition auxiliary tool according to claim 1, characterized in that: The first measuring plane is perpendicular to the second measuring plane.

7. The hole axis acquisition auxiliary tool according to claim 1, characterized in that: One end of the slotted probe is a large head end, and the other end is a small head end, and the small head end is used to extend into the through hole.

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