A hollow shaft center cone depth detection device

Abstract

The utility model discloses a hollow shaft center cone depth detection device, which belongs to the field of gear processing. The utility model includes a centering base, a detection cone and a standard part. The centering base includes a first truncated cone, one side of the small bottom surface of the first truncated cone is connected to the first centering column, and a grinding hole is provided at one end of the first centering column away from the first truncated cone; the detection cone includes a second centering column, and the second centering column is connected to one side of the small bottom surface of the second truncated cone; the standard part is arranged on the outside of the first centering column, one end of the standard part is fixed by the first truncated cone, the first centering column and the second centering column are connected by the grinding hole, and the other end of the standard part is fixed by the second truncated cone. In this detection device, the centering base has the lower end centering and supporting functions, and the detection cone has the upper end centering and detection functions; the centering base and the detection cone are assembled to form a depth detection device, and the center cone size of the processed part can be indirectly measured by the height change of the detection cone, so as to realize convenient and accurate rapid measurement.

Description

Technical Field

[0001] The utility model relates to the field of gear processing, in particular to a device for detecting the depth of a central cone surface of a hollow shaft. Background Art

[0002] In the field of new energy, shaft gears are key transmission components, and their accuracy directly affects the performance and efficiency of the entire machine. The grinding of shaft gears adopts the positioning and clamping method of center hole cone positioning and double center top and bottom center clamping. In order to ensure the machining accuracy of the teeth, the depth of the center cone at both ends of the shaft gear parts must have a high accuracy, which is directly related to the machining accuracy of the gear teeth and the quality of the final product. Therefore, accurate and rapid detection of the center cone depth of new energy shaft gears has become a key link in improving production efficiency and product quality.

[0003] For the depth detection of the center cone surface of shaft gears, traditional detection methods, such as "profilometer first and last piece detection + depth vernier caliper random inspection", can meet the detection needs to a certain extent, but there are obvious limitations. Although the profilometer first and last piece detection can provide relatively accurate detection results, the operation is complicated and time-consuming, and it is not suitable for frequent detection in mass production. Although the depth vernier caliper random inspection is simple to operate, it is greatly affected by human factors, the detection results are not stable enough, and it is difficult to ensure the consistency of product quality. Utility Model Content

[0004] In view of the problems that the existing method for detecting the depth of the center cone surface has a long detection time and inaccurate detection results, the utility model provides a hollow shaft center cone surface depth detection device, which can realize fast and accurate detection of the center cone surface depth of shaft gears, while reducing the difficulty of operation and improving the detection efficiency.

[0005] In order to achieve the above object, the utility model provides the following technical solutions:

[0006] A device for detecting the depth of a central cone surface of a hollow shaft comprises a centering base, a detection cone and a standard part; the centering base comprises a first frustum, one side of a small bottom surface of the first frustum is connected to a first centering column, and a grinding hole is provided at one end of the first centering column away from the first frustum; the detection cone comprises a second centering column, and the second centering column is connected to one side of the small bottom surface of the second frustum; the standard part is arranged outside the first centering column, one end of the standard part is fixed by the first frustum, the first centering column and the second centering column are connected by the grinding hole, and the other end of the standard part is fixed by the second frustum.

[0007] Part of the side surface of the second centering column is a plane, and the plane can connect the space formed by the first centering column and the second centering column with the outside.

[0008] The radial clearance between the diameter of the matching grinding hole and the outer diameter of the second centering column is less than 0.005 mm.

[0009] The length of the second centering column is smaller than the length of the grinding hole.

[0010] The centering base also includes a first base, and the first base is connected to one side of the large bottom surface of the first truncated cone.

[0011] The first base is cylindrical, and the diameter of the base is greater than or equal to the diameter of the large bottom surface of the first truncated cone.

[0012] A groove is provided on one side of the first base away from the first truncated cone.

[0013] The detection cone also includes a second base, which is connected to one side of the large bottom surface of the second truncated cone.

[0014] The second base is cylindrical, and the diameter of the second base is equal to the diameter of the large bottom surface of the second truncated cone.

[0015] A boss is provided on one side of the second base away from the second truncated cone.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model is a device specially used for detecting the depth of the center cone of hollow shafts. The centering base in the detection device has the functions of centering and supporting the lower end, and the detection cone has the functions of centering and detecting the upper end. The centering base and the detection cone are assembled to form a depth detection device, which can indirectly measure the center cone size of the processed parts by the height change of the detection cone, and can achieve convenient and accurate rapid measurement. The utility model can meet the detection needs of the center cone depth of hollow shafts of different specifications and models. The operation of the detection device is simple and fast, which can reduce the detection time and improve production efficiency. The utility model can realize accurate and rapid detection of the center cone depth of hollow shafts, providing a strong guarantee for high-quality production in the field of new energy.

[0018] Furthermore, a base is provided so that the detection device can remain stable when placed on the detection platform, thereby providing a guarantee for the accuracy of the detection results; the outermost surface of the base needs to be finely processed, and grooving and adding bosses on the base can reduce the amount of processing and facilitate processing; a plane is provided to ensure that the space formed by the first centering column and the second centering column is connected to the outside world, so that the centering base and the detection cone are easy to assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is a schematic diagram of the structure of the hollow shaft center cone depth detection device of the utility model;

[0021] Figure 2 This is a cross-sectional view of the hollow shaft center cone depth detection device of the utility model;

[0022] In the figure, 1, centering base; 2, detection cone; 3, standard part; 101, first base; 102, first frustum; 103, first centering column; 104, grinding hole; 201, second centering column; 202, second frustum; 203, second base. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0026] In the description of the embodiments of the present utility model, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0027] In addition, if the term "horizontal" appears, it does not mean that the component is required to be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0028] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] For the depth detection of the center cone surface of hollow shaft parts, the existing detection method is to use "profilometer first and last piece detection + depth vernier caliper random inspection". This detection method is time-consuming and the detection result is inaccurate.

[0030] In order to solve the problems existing in the existing detection methods, the utility model proposes an indirect measurement method and develops a set of special hollow shaft center cone depth detection device. The utility model is further described in detail below with reference to the accompanying drawings:

[0031] like Figure 1 and Figure 2 As shown, the hollow shaft center cone depth detection device provided by the utility model includes a centering base 1, a detection cone 2 and a standard part 3; the centering base 1 includes a first frustum 102, one side of the small bottom surface of the first frustum 102 is connected to the first centering column 103, and a grinding hole 104 is provided at one end of the first centering column 103 away from the first frustum 102; the detection cone 2 includes a second centering column 201, the second centering column 201 is connected to one side of the small bottom surface of the second frustum 202, the standard part 3 is arranged on the outside of the first centering column 103, one end of the standard part 3 is fixed by the first frustum 102, the first centering column 103 and the second centering column 201 are connected by the grinding hole 104, and the other end of the standard part 3 is fixed by the second frustum 202.

[0032] The centering base 1 also includes a first base 101, which is connected to one side of the large bottom surface of the first truncated cone 102. The first base 101 is cylindrical, and the diameter of the base 101 is greater than or equal to the diameter of the large bottom surface of the first truncated cone 102. A groove is provided on the side of the first base 101 away from the first truncated cone 102.

[0033] The detection cone 2 also includes a second base 203, which is connected to one side of the large bottom surface of the second truncated cone 202. The second base 203 is cylindrical, and the diameter of the second base 203 is equal to the diameter of the large bottom surface of the second truncated cone 202. A boss is provided on the side of the second base 203 away from the second truncated cone 202.

[0034] The radial clearance between the grinding hole 104 and the second centering column 201 is less than 0.005 mm. The size tolerance of the grinding hole 104 and the second centering column 201 is small, and a closed space is easily formed inside during assembly, which is not easy to assemble. Therefore, part of the side surface of the second centering column 201 is cut into a plane, and the plane can make the space formed by the first centering column 103 and the second centering column 201 communicate with the outside world, so that the grinding hole 104 of the centering base 1 and the second centering column 201 of the detection cone 2 are easy to assemble.

[0035] The length of the second centering column 201 is smaller than the length of the grinding hole 104 .

[0036] In the detection device of the utility model, the centering base 1 provides the lower end centering and supporting functions, and the detection cone 2 provides the upper end centering and detection functions; the standard part 3 or the processed part is inserted into the core shaft formed by the centering base 1 and the detection cone 2.

[0037] Example 1

[0038] The hollow shaft center cone depth detection device of this embodiment includes a centering base 1, a detection cone 2 and a standard part 3; the centering base 1 includes a first base 101, a first truncated cone 102 and a first centering column 103, which are connected in sequence; a grinding hole 104 is provided at one end of the first centering column 103 away from the first truncated cone 102; the detection cone 2 includes a second centering column 201, a second truncated cone 202 and a second base 203, which are connected in sequence, the standard part 3 is arranged outside the first centering column 103, one end of the standard part 3 is fixed by the first truncated cone 102, the first centering column 103 and the second centering column 201 are connected by the grinding hole 104, and the other end of the standard part 3 is fixed by the second truncated cone 202. The length of the first centering column 103 is 88 mm, the length of the grinding hole 104 is 70 mm, and the length of the second centering column 201 is 60 mm.

[0039] The first base 101 is cylindrical, with a diameter of 70 mm, and the diameter of the large bottom surface of the first truncated cone 102 is 40 mm. The second base 203 is cylindrical, with a diameter equal to the diameter of the large bottom surface of the second truncated cone 202, which is 40 mm.

[0040] The diameter of the grinding hole 104 and the outer diameter of the second centering column 201 are both 13 mm, and the radial clearance between the grinding hole 104 and the second centering column 201 is 0.003 mm. Part of the side surface of the second centering column 201 is flat, so that the grinding hole 104 of the centering base 1 and the second centering column 201 of the detection cone 2 are easy to assemble.

[0041] Example 2

[0042] The hollow shaft center cone depth detection device of this embodiment includes a centering base 1, a detection cone 2 and a standard part 3; the centering base 1 includes a first base 101, a first truncated cone 102 and a first centering column 103, which are connected in sequence; a grinding hole 104 is provided at one end of the first centering column 103 away from the first truncated cone 102; the detection cone 2 includes a second centering column 201, a second truncated cone 202 and a second base 203, which are connected in sequence, the standard part 3 is arranged outside the first centering column 103, one end of the standard part 3 is fixed by the first truncated cone 102, the first centering column 103 and the second centering column 201 are connected by the grinding hole 104, and the other end of the standard part 3 is fixed by the second truncated cone 202. The length of the first centering column 103 is 88 mm, the length of the grinding hole 104 is 70 mm, and the length of the second centering column 201 is 60 mm.

[0043] The first base 101 is cylindrical, with a diameter of 70 mm, and a large bottom surface diameter of the first truncated cone 102 is 40 mm. A groove is provided on the side of the first base 101 away from the first truncated cone 102, and the diameter of the groove is 50 mm.

[0044] The second base 203 is cylindrical, and the diameter of the second base 203 is equal to the diameter of the large bottom surface of the second truncated cone 202, which is 40 mm. A boss is provided on the side of the second base 203 away from the second truncated cone 202, and the diameter of the boss is 20 mm.

[0045] The diameter of the grinding hole 104 and the outer diameter of the second centering column 201 are both 15 mm, and the radial clearance between the grinding hole 104 and the second centering column 201 is 0.003 mm. Part of the side surface of the second centering column 201 is flat, so that the grinding hole 104 of the centering base 1 and the second centering column 201 of the detection cone 2 are easy to assemble.

[0046] The central cone depth detection device of the utility model adopts the indirect measurement principle to convert the cone size that cannot be detected by a simple measuring tool into a height size that can be conveniently measured by a height gauge in a straight line direction.

[0047] The method of using the central cone depth detection device of the utility model is as follows:

[0048] First, place the centering base 1 on the detection platform, then insert the standard part 3 into the centering base 1, and then assemble the detection cone 2 and the centering base 1 together through the matching hole 104, so that the centering base 1 and the detection cone 2 combine the standard part 3 into a whole, and finally use a height gauge to measure the upper surface of the detection cone 2 and return it to zero;

[0049] When detecting the depth of the center cone surface of the processed part, it is only necessary to replace the above-mentioned standard part 3 with the processed part, and then use a height gauge to measure the upper surface of the detection cone 2. The measurement result is the tolerance of the depth of the center cone surface of the processed part.

[0050] The above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field can still modify or replace the specific implementation methods of the present invention. Any modifications or equivalent replacements that do not depart from the spirit and scope of the present invention are within the scope of protection of the claims of the present invention to be approved.

Claims

1. A device for detecting the depth of a central cone of a hollow shaft, characterized in that: It comprises a centering base (1), a detection cone (2) and a standard part (3); The centering base (1) comprises a first truncated cone (102) and a first centering column (103), one side of the small bottom surface of the first truncated cone (102) is connected to the first centering column (103), and a grinding hole (104) is provided at one end of the first centering column (103) away from the first truncated cone (102); the detection cone (2) comprises a second centering column (201) and a second truncated cone (202), the second centering column (201) is connected to one side of the small bottom surface of the second truncated cone (202); The standard part (3) is arranged outside the first centering column (103), one end of the standard part (3) is fixed by the first truncated cone (102), the first centering column (103) and the second centering column (201) are connected by a matching grinding hole (104), and the other end of the standard part (3) is fixed by the second truncated cone (202).

2. A hollow shaft center cone depth detection device according to claim 1, characterized in that: Part of the side surface of the second centering column (201) is a plane, and the plane enables the space formed by the first centering column (103) and the second centering column (201) to communicate with the outside world.

3. A hollow shaft center cone depth detection device according to claim 1, characterized in that: The radial clearance between the diameter of the grinding hole (104) and the outer diameter of the second centering column (201) is less than 0.005 mm.

4. The device for detecting the depth of the central cone of a hollow shaft according to claim 1, characterized in that: The length of the second centering column (201) is smaller than the length of the grinding hole (104).

5. The device for detecting the depth of the central cone of a hollow shaft according to claim 1, characterized in that: The centering base (1) further comprises a first base (101), and the first base (101) is connected to one side of the large bottom surface of the first truncated cone (102).

6. A hollow shaft center cone depth detection device according to claim 5, characterized in that: The first base (101) is cylindrical, and the diameter of the base (101) is greater than or equal to the diameter of the large bottom surface of the first truncated cone (102).

7. A hollow shaft center cone depth detection device according to claim 5, characterized in that: A groove is provided on a side of the first base (101) away from the first truncated cone (102).

8. The device for detecting the depth of the central cone of a hollow shaft according to claim 1, characterized in that: The detection cone (2) also includes a second base (203), and the second base (203) is connected to one side of the large bottom surface of the second truncated cone (202).

9. A hollow shaft center cone depth detection device according to claim 8, characterized in that: The second base (203) is cylindrical, and the diameter of the second base (203) is equal to the diameter of the large bottom surface of the second truncated cone (202).

10. The device for detecting the depth of the central cone of a hollow shaft according to claim 8, characterized in that: A boss is provided on a side of the second base (203) away from the second truncated platform (202).

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