Shaft part centering detection device

Abstract

The utility model relates to the technical field of centering detection of shaft parts, and discloses a centering detection device for shaft parts, which is used for detecting the centering of a first shaft part to be detected and a second shaft part to be detected, and comprises a mounting jig which is used for being coaxially connected with the first shaft part to be detected; the light source is arranged at the other end of the mounting jig, and the light source emits a laser beam in the axial direction of the mounting jig and is opposite to the mounting jig; the detection disc is arranged on a transmission path of the laser beam, one end face, facing the light source, of the detection disc is provided with a plurality of concentric circles coaxial with the mounting jig, and the detection disc is coaxially connected with a second shaft part to be detected. The beneficial effects of the utility model are that the whole structure is simple, the centering of shaft parts can be rapidly detected, the centering difficulty is reduced, and the assembly efficiency and the production efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft part centering detection, in particular to a shaft part centering detection device. Background Art

[0002] In order to ensure the coaxiality of shaft parts during installation, traditional positioning and centering mechanisms of shaft parts often have multiple limit blocks. The shaft parts are mounted on the limit blocks, and then the positions of the limit blocks are manually fine-tuned to achieve the centering of the shaft parts. During the adjustment, auxiliary tools (such as calipers and calibration blocks) need to be used for repeated adjustments, which is inefficient and seriously affects assembly or production efficiency, indirectly increases labor costs, and cannot meet the rapid assembly or processing needs of the workshop. Utility Model Content

[0003] The purpose of the utility model is to provide a shaft parts alignment detection device with a simple overall structure, which can quickly detect the alignment of shaft parts, reduce the difficulty of alignment, and improve assembly efficiency and production efficiency.

[0004] In order to achieve the above object, the utility model provides a shaft parts alignment detection device for detecting the alignment of a first shaft part to be tested and a second shaft part to be tested, comprising:

[0005] A mounting fixture, used for coaxial connection with the first shaft part to be tested;

[0006] a light source, disposed at the other end of the mounting fixture, emitting a laser beam along the axial direction of the mounting fixture and facing away from the mounting fixture;

[0007] The detection disk is arranged on the transmission path of the laser beam, and a plurality of concentric circles coaxial with the mounting fixture are provided on one end surface of the detection disk facing the light source, and the detection disk is coaxially connected to the second shaft part to be tested.

[0008] Furthermore, it also includes a coaxially arranged mounting sleeve and a mounting bushing, wherein the mounting fixture has a fixing hole axially opened at one end toward the light source, one end of the mounting shaft is sleeved on the fixing hole, the other end of the mounting sleeve is inserted with the mounting bushing, and the mounting bushing is inserted with the light source.

[0009] Furthermore, the mounting sleeve is provided with a mounting step corresponding to the fixing hole.

[0010] Furthermore, the outer wall of the mounting bushing is provided with a limiting step corresponding to the mounting sleeve.

[0011] Furthermore, it also includes a base for mounting the detection tray.

[0012] Furthermore, the radial spacing between the multiple concentric circles is greater than or equal to 1 mm.

[0013] Furthermore, the mounting fixture includes a coaxially arranged cylinder and a connecting plate, both ends of the cylinder are open, and one end is provided with a mounting hole for mounting the first shaft part to be measured, and the other end is provided with the connecting plate, and the light source is coaxially arranged with the connecting plate.

[0014] Furthermore, a threaded hole is radially formed on a side wall of the mounting hole, and a fixing screw is connected in the threaded hole.

[0015] Compared with the prior art, the embodiment of the utility model provides a shaft part centering detection device, and its beneficial effects are as follows: a mounting fixture is used to be coaxially connected to a first shaft part to be measured, a light source is provided at the other end of the mounting fixture, the light source emits a laser beam coaxial with the mounting fixture, a detection disk is located on the transmission path of the laser beam, and a plurality of concentric circles coaxial with the mounting fixture are provided on one end face of the detection disk facing the light source, the detection disk is coaxially connected to the second shaft to be measured, and when the first shaft part to be measured and the second shaft part to be measured are subjected to centering detection, the mounting fixture is rotated, and if the moving path of the laser beam on the detection disk is circular, it indicates that the shaft part to be measured has been aligned, and rapid centering detection of the shaft parts can be achieved, the overall structure is simple, the difficulty of alignment is reduced, and the assembly efficiency and production efficiency of the shaft parts are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of a shaft alignment detection device according to an embodiment of the present utility model;

[0017] Figure 2 This is a front view of the detection disk of the shaft alignment detection device according to an embodiment of the present utility model;

[0018] Figure 3 This is a cross-sectional view of a shaft alignment detection device according to an embodiment of the present utility model;

[0019] Figure 4 This is an embodiment of the utility model Figure 3 A partial enlarged view of the

[0020] Figure 5 This is a reference diagram for the use of the shaft alignment detection device according to an embodiment of the present utility model.

[0021] In the figure, 1. Mounting fixture; 11. Cylinder; 12. Connecting plate; 100. Mounting hole; 101. Fixing screw; 102. Fixing hole; 2. Light source; 21. Laser beam; 3. Detection disk; 31. Concentric circles; 4. Mounting sleeve; 41. Mounting step; 5. Mounting bushing; 51. Limiting step; 6. Base; a. First shaft part to be measured; b. Second shaft part to be measured. DETAILED DESCRIPTION

[0022] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "inside", "outside", etc. used in the present invention to indicate the orientation or position relationship are based on the position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the devices and elements 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 invention.

[0024] In the description of this utility model, it should be understood that the terms "first," "second," etc. are used to describe various types of information, but such information should not be limited to these terms. These terms are merely used to distinguish information of the same type from one another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information without departing from the scope of this utility model.

[0025] like Figures 1 to 5 As shown, a shaft parts alignment detection device according to a preferred embodiment of the present invention is used to detect whether the shaft parts are aligned. Figure 5 For ease of explanation, in this embodiment, the centering detection device is used to detect the alignment of the first shaft-like part a to be measured and the second shaft-like part b to be measured. The centering detection device includes a mounting fixture 1, a light source 2 and a detection disk 3, wherein the mounting fixture 1 is used to be coaxially connected to the first shaft-like part a to be measured. In this embodiment, in order to facilitate the installation of the first shaft-like part a to be measured, a mounting hole 100 is opened axially at one end of the mounting fixture 1. At this time, the mounting hole 100 and the first shaft-like part a to be measured are matched as axial holes and can be rotatably connected; the light source 2 is provided at the other end of the mounting fixture 1, and the light source 2 emits a laser beam 21 along the axial direction of the mounting fixture 1 and back to the mounting fixture 1, and the transmission path of the laser beam 21 is a straight line; the detection disk 3 is provided on the transmission path of the laser beam 21, and a plurality of concentric circles 31 coaxial with the mounting fixture 1 are provided on one end face of the detection disk 3 facing the light source 2, and the detection disk 3 is coaxially connected to the second shaft-like part b to be measured.

[0026] When performing alignment detection on the first shaft part a to be tested and the second shaft part b to be tested, there are two criteria for judging whether they are aligned. The first judgment criterion is: there is no error when the light source 2 and the mounting fixture 1 are installed, the laser beam 21 emitted by the light source 2 is coaxial with the mounting fixture 1, and the mounting fixture 1 is rotated. The moving path of the laser beam 21 on the detection disk 3 is a solid circle, and is concentric with multiple concentric circles 31. At this time, it indicates that the first shaft part a to be tested and the second shaft part b to be tested are aligned. The second judgment standard is that there is a certain error when the light source 2 and the mounting fixture 1 are installed. The laser beam 21 emitted by the light source 2 is not coaxial with the mounting fixture 1. The mounting fixture 1 is rotated. If the moving path of the laser beam 21 on the detection disk 3 is circular and concentric with the multiple concentric circles 31, it can also indicate that the first shaft part a to be measured and the second shaft part b to be measured are aligned. After the alignment is completed, the mounting fixture 1 connected to the first shaft part a to be measured is disassembled, and the detection disk connected to the second shaft part b to be measured is disassembled. Then, the first shaft part a to be measured and the second shaft part b to be measured are assembled along the axial direction to ensure that the assembly is accurate. In some embodiments, in order to facilitate the rotation of the mounting fixture 1, the moving path of the laser beam 21 on the detection disk 3 is observed. The radial spacing between the multiple concentric circles 31 is greater than or equal to 1 mm, and the spacing can be adjusted according to actual detection needs. From the above, it can be seen that if the moving path of the laser beam 21 on the detection disk 3 is circular, it can be indicated that the first shaft part a to be tested and the second shaft part b to be tested are aligned. The operation is simple, the difficulty of alignment is reduced, and the assembly efficiency and production efficiency of shaft parts are improved.

[0027] In some embodiments, in order to prevent the mounting jig 1 from slipping off the first shaft part a to be measured before rotating the mounting jig 1, a threaded hole is radially opened on the side wall of the mounting hole 100, and a fixing screw 101 is connected to the threaded hole. When the mounting jig 1 needs to be rotated, the fixing screw 101 can be loosened.

[0028] In some embodiments, to facilitate the detachable installation of the light source 2, the centering detection device of the present invention further includes a coaxially arranged mounting sleeve 4 and mounting bushing 5, wherein a fixing hole 102 is axially opened on one end of the mounting fixture 1 facing the light source 2, one end of the mounting shaft is sleeved in the fixing hole 102, and the other end of the mounting sleeve 4 is inserted with a mounting bushing 5, and the mounting bushing 5 is inserted with the light source 2, which can emit an infrared laser. When disassembling the light source 2, the mounting bushing 5 can be directly disassembled, and then the light source 2 can be taken out.

[0029] In some embodiments, in order to facilitate the axial limitation of the sleeve 4 during installation, refer to Figure 1The mounting sleeve 4 is provided with a mounting step 41 corresponding to the mounting hole 100. Similarly, to facilitate axial positioning of the mounting bushing 5 during installation, a limiting step 51 corresponding to the mounting sleeve 4 is provided on the outer wall of the mounting bushing 5. Furthermore, to facilitate removal of the mounting bushing 5, the limiting step 51 is shaped like a regular hexagon, allowing the mounting bushing 5 to be removed using a wrench.

[0030] In some embodiments, in order to facilitate fixing the position of the detection disk 3, a base 6 for mounting the detection disk 3 is also included. In this embodiment, refer to Figure 3 The detection disk 3 and the second shaft part b to be tested are coaxially connected by shaft-hole matching.

[0031] In some embodiments, in order to facilitate the installation of the jig 1 for processing and assembly, refer to Figure 3 The mounting fixture 1 includes a coaxially arranged cylinder 11 and a connecting plate 12. Both ends of the cylinder 11 are open, and one end is provided with a mounting hole 100, and the other end is provided with a connecting plate 12. The light source 2 and the connecting plate 12 are coaxially arranged. Specifically, a fixing hole 102 is provided on the connecting plate 12.

[0032] In summary, an embodiment of the present invention provides a device for detecting centering of shaft parts, wherein a mounting fixture is used to be coaxially connected to a first shaft part to be tested, and a light source 2 is provided at the other end of the mounting fixture 1. The light source 2 emits a laser beam 21 coaxial with the mounting fixture 1, and the detection disk 3 is located on the transmission path of the laser beam 21, and an end face of the detection disk 3 facing the light source 2 is provided with a plurality of concentric circles 31 coaxial with the mounting fixture 1, and the detection disk 3 is coaxially connected to the second shaft to be tested. When the first shaft part a to be tested and the second shaft part b to be tested are subjected to centering detection, the mounting fixture 1 is rotated. If the moving path of the laser beam 21 on the detection disk 3 is circular, it indicates that the shaft part to be tested has been centered, and rapid centering detection of shaft parts can be realized. The overall structure is simple, the centering difficulty is reduced, and the assembly efficiency and production efficiency of shaft parts are improved.

[0033] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and replacements can be made without departing from the technical principles of the present invention. These improvements and replacements should also be regarded as the scope of protection of the present invention.

Claims

1. A shaft part alignment detection device for detecting the alignment of a first shaft part to be tested and a second shaft part to be tested, characterized in that: include A mounting fixture, used for coaxial connection with the first shaft part to be tested; a light source, disposed at the other end of the mounting fixture, emitting a laser beam along the axial direction of the mounting fixture and facing away from the mounting fixture; The detection disk is arranged on the transmission path of the laser beam, and a plurality of concentric circles coaxial with the mounting fixture are provided on one end surface of the detection disk facing the light source, and the detection disk is coaxially connected to the second shaft part to be tested.

2. The shaft parts alignment detection device according to claim 1, characterized in that: It also includes a coaxially arranged mounting sleeve and a mounting bushing, wherein the mounting fixture has an axially opened fixing hole at one end facing the light source, one end of the mounting shaft is sleeved on the fixing hole, the other end of the mounting sleeve is inserted with the mounting bushing, and the mounting bushing is inserted with the light source.

3. The shaft parts alignment detection device according to claim 2, characterized in that: The mounting sleeve is provided with a mounting step corresponding to the fixing hole.

4. The shaft parts alignment detection device according to claim 2, characterized in that: The outer wall of the mounting bushing is provided with a limiting step corresponding to the mounting sleeve.

5. The shaft parts alignment detection device according to claim 1, characterized in that: Also included is a base for mounting the detection tray.

6. The shaft parts alignment detection device according to claim 1, characterized in that: The radial spacing between the multiple concentric circles is greater than or equal to 1 mm.

7. The shaft parts alignment detection device according to claim 1, characterized in that: The mounting fixture includes a coaxially arranged cylinder and a connecting plate. Both ends of the cylinder are open, and one end is provided with a mounting hole for mounting the first shaft part to be measured, and the other end is provided with the connecting plate. The light source is coaxially arranged with the connecting plate.

8. The shaft parts alignment detection device according to claim 7, characterized in that: A threaded hole is radially formed on the side wall of the mounting hole, and a fixing screw is connected in the threaded hole.

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