CN216558697U

CN216558697U - Part outer handle internal spline groove detection device

Info

Publication number: CN216558697U
Application number: CN202122418117.XU
Authority: CN
Inventors: 杜孟军; 汪辰琛; 石新平; 武千海
Original assignee: Avic Tianshui Aviation Industry Co ltd
Current assignee: Avic Tianshui Aviation Industry Co ltd
Priority date: 2021-10-06
Filing date: 2021-10-06
Publication date: 2022-05-17
Anticipated expiration: 2031-10-06

Abstract

The utility model relates to a part outer handle inner spline groove detection device, which comprises a base measuring frame and an angle measuring bar, wherein the base measuring frame is provided with a plurality of angle measuring grooves; the base measuring frame is an integrated part and comprises a plane platform, a first boss and a second boss, wherein the two bosses are the same in structure, are positioned on two sides of the same end of the plane platform and are symmetrically arranged, and planes of the two bosses are parallel to each other and are perpendicular to the plane platform; the distance between the first boss and the second boss ensures that the part to be tested can be in clearance fit with the inner wall surfaces of the two bosses; the table-board of the first boss and the second boss is provided with an inclined groove with the same angle. The problem of measure with ordinary angle square measuring tool difficulty inaccurate is solved, avoid other angle rulers to detect the loaded down with trivial details nature that part outer handle internal spline groove angle brought, guaranteed product quality, improved finished product detection efficiency.

Description

Part outer handle internal spline groove detection device

Technical Field

The utility model relates to the field of machine manufacturing, in particular to a detection device for an inner spline groove of an outer handle of a part, which is used for detecting the angle of the inner spline groove of the outer handle in machine manufacturing of a certain machine type.

Background

The internal spline groove of handle is processed the production in batches outside a certain model, because the internal spline of this part need be at specific angle and another axle spline assembly, consequently the internal spline groove angle precision requirement of outer handle is high, in case the angle processing of internal spline has the deviation, can directly lead to outer handle internal spline groove to scrap.

In the prior art, an inspector uses a conventional angle ruler to detect the angle of the internal spline groove of the external handle. However, due to the particularity of the part with the outer handle and the inner spline groove, the angle of the spline groove of the part is difficult to detect by using a conventional angle ruler, the time is long, and the angle of the spline groove is difficult to accurately detect due to the fact that the distance between the reference surface and the inner spline groove is long, so that assembly of a next process is further influenced, and the production period is delayed.

Therefore, a detection tool capable of accurately and quickly detecting the angle of the internal spline groove of the external handle is needed to be designed, so that the product quality is ensured, and the production efficiency is improved.

Disclosure of Invention

The technical problem to be solved is as follows: the utility model provides a part outer handle inner spline groove detection device, which aims to solve the problems of difficulty and inaccuracy of the conventional angle ruler for measuring the angle of an outer handle inner spline groove, meet the requirement that the outer handle inner spline groove can be accurately matched with another shaft spline on a machine after the outer handle inner spline groove is installed on the machine, and avoid part scrapping.

The technical scheme of the utility model is as follows: a detection device for an internal spline groove of an external handle of a part comprises a base measuring frame and an angle measuring bar;

the base measuring frame is an integrated part and comprises a plane platform, a first boss and a second boss, wherein the two bosses are the same in structure, are positioned on two sides of the same end of the plane platform and are symmetrically arranged, and planes of the two bosses are parallel to each other and are perpendicular to the plane platform; the distance between the first boss and the second boss ensures that the part to be tested can be in clearance fit with the inner wall surfaces of the two bosses; the table top of the first boss and the second boss is provided with chutes with the same angle, the width and the length of each chute are respectively equal to the width and the length of the outer handle inner spline groove of the part to be measured, the included angle between the slotting direction of each chute and the surface of the plane table is equal to the included angle between the outer handle inner spline groove of the part to be measured and the reference surface of the part to be measured, and the distance between each chute and the surface of the plane table is equal to the distance between the outer handle inner spline groove of the part to be measured and the reference surface of the part to be measured;

the width and the length of the angle measuring strip are respectively equal to those of the inner spline groove of the outer handle of the part to be measured, and the radians of the two ends of the angle measuring strip are the same as the arc radians of the inner spline groove end of the outer handle of the part to be measured; whether the angle measuring strip can penetrate through the chute and the inner spline groove of the outer handle of the part to be measured or not is detected, and whether the angle of the inner spline groove of the outer handle of the part to be measured meets the requirement or not is judged.

The further technical scheme of the utility model is as follows: after the two bosses are matched with the internal spline grooves to be measured, the height of the chute center distance platform on the first boss and the second boss is equal to the height of the internal spline grooves to be measured from the center distance platform.

The further technical scheme of the utility model is as follows: the inclined groove and the z-axis form an included angle of 27.5 degrees +/-30'.

The further technical scheme of the utility model is as follows: the two bosses and the internal spline groove to be measured are in clearance fit, and the fit interval is +/-0.1.

The further technical scheme of the utility model is as follows: the groove width clearance between the angle measuring strip and the inner spline of the base measuring frame and the outer handle is not more than 0.05 mm.

The further technical scheme of the utility model is as follows: the base measuring frame and the angle measuring strip are both made of 7050 aluminum plate materials.

Advantageous effects

The utility model has the beneficial effects that: the device has the innovation point that 1, the base measuring frame and the angle measuring strip are precisely machined according to the relevant sizes of the internal spline groove of the part external handle. 2. The center of the internal spline of the base measuring frame is coaxial with the center of the internal spline groove of the part external handle. 3. The clearance between the angle measuring strip inserted into the key groove at the upper end of the base measuring frame and the inner spline groove of the outer handle of the part is small, and the accuracy of the angle of the part can be accurately measured. 4. The complexity caused by measuring the angle of the internal spline groove of the part by other conventional angle rulers is avoided. 5. The angle of the key groove at the upper end of the base measuring frame is checked to be correct and correct by three-coordinate inspection. 6. The device is used for detecting the angle of the internal spline groove of the external handle of the part accurately and conveniently, so that the time of workers is saved, the labor intensity is reduced, and the production efficiency is improved. 7. The device is not limited by external conditions, and the detection method is simple, visual and convenient.

To sum up, this device detects part outer handle internal spline groove angle, has solved the unsafe problem of difficulty with ordinary angle ruler measuring tool measurement, avoids the loaded down with trivial details nature that other angle rulers detected part outer handle internal spline groove angle and bring, has guaranteed product quality, has improved finished product detection efficiency.

Drawings

FIG. 1 is a three-dimensional schematic view of a detection device and an internal spline groove of an external handle of a part to be detected.

FIG. 2 is a schematic view of an internal spline groove to be measured

FIG. 3 is a schematic view of a pedestal measuring stand

FIG. 4 is a schematic view of an angle measurement bar

Description of the reference numerals: 1-measured part external handle internal spline groove, 2-base measuring frame, 3-angle measuring strip

2-1: a flat platform; 2-2: a first boss; 2-3: second boss

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1-4, the device comprises a base measuring frame and an angle measuring strip, wherein the base measuring frame and the angle measuring strip are precisely machined according to the angle of an internal spline groove of an external handle and relevant dimensions.

The base measuring rack is made of 7050 aluminum plate materials and is an integrated part, the bottom plate is a flat plate, and the two side plates are symmetrically arranged and are parallel to the flat plate. The distance between the two side plates is the same as the width of the spline groove in the part outer handle, and the fit clearance is +/-0.1 mm. The plate surfaces of the two side plates are symmetrically provided with inclined grooves, the angles and the opening directions of the inclined grooves are the same, and the included angle between each inclined groove and the Z axis is 27.5 +/-30'. The z axis is an axis perpendicular to the flat plate, and the reference surface of the part to be detected is a surface attached to the flat plate.

After the internal spline groove of the external handle of the part is in clearance fit with the two side plates, the height between the center of the chute and the groove surface of the base measuring frame is equal to the height between the center of the inner hole of the internal spline groove of the external handle of the part and the bottom surface of the lower end, the internal spline groove of the external handle is placed in the base measuring frame, and the centers of the two grooves are on the same axis. Before measurement, the coincidence of the groove center of the internal spline groove to be measured and the center of the chute needs to be ensured

The angle measuring strip is made of 7050 aluminum sheet material, and the manufacturing method comprises the steps of milling a rectangular block with the same thickness and width as the inner spline groove of the part outer handle on one sheet material, and manufacturing arcs on two sides of the width of the rectangular block to be the same as the arcs of the part key grooves.

When the angle measuring strip is inserted into the inner spline groove of the outer handle of the part and the chute on the base measuring frame, the angle measuring strip is in clearance fit with the inner spline groove of the outer handle of the part and the chute on the base measuring frame, and the fit clearance is not more than 0.05 mm.

The detection method comprises the following steps: during detection, the spline of the outer handle of the part is placed in the groove of the base measuring frame, the lower surface of the inner spline of the outer handle of the part is attached to the upper surface of the base measuring frame, the inner spline groove of the outer handle of the part is aligned with the groove of the base measuring frame, then the angle measuring strip is inserted, the angle measuring strip is freely inserted, the fact that the angle of the inner spline groove of the outer handle of the part is accurate is shown, and otherwise, the part processing angle is incorrect.

According to the part outer handle inner spline groove detection device, only one key groove is designed on the upper end of the base measuring frame, namely two side plates, the accuracy of two symmetrical key grooves is detected in actual detection, and the accuracy of the other two symmetrical key grooves also meets the technical requirements, because 4 key grooves of the outer handle inner hole spline groove are uniformly distributed and are formed by programming 5 shafts of a numerical mill, the precision is high.

In conclusion, the device meets the technical requirement of batch detection, ensures the part processing quality and meets the production requirement.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.

Claims

1. A detection device for an internal spline groove of an external handle of a part is characterized by comprising a base measuring frame and an angle measuring bar;

2. The device for detecting the internal spline groove of the external handle of a part as claimed in claim 1, wherein after the two bosses are matched with the internal spline groove to be detected, the height of the distance between the center of the chute on the first boss and the center of the chute on the second boss from the plane table is equal to the height of the distance between the center of the internal spline groove to be detected and the plane table.

3. The part external handle internal spline groove testing device of claim 1, wherein the angle between the chute and the z-axis is 27.5 ° ± 30'.

4. The part outer handle inner spline groove detection device of claim 1, wherein the two bosses and the inner spline groove to be detected are in clearance fit, and the fit interval is ± 0.1.

5. The device for detecting the internal spline groove of the external handle of the part as claimed in claim 1, wherein the groove width clearance between the angle measuring strip and the base measuring frame and between the angle measuring strip and the internal spline of the external handle is no more than 0.05 mm.

6. The device for detecting the internal spline groove of the external handle of the part as claimed in claim 1, wherein the base measuring rack and the angle measuring bar are both made of 7050 aluminum plate.