Adjustable spacing support spline shaft keyway detection tool

Abstract

The utility model relates to spline shaft keyway detection technical field, and disclose adjustable interval support spline shaft keyway detection frock, include: bottom plate, base and moving platform, the base is fixed in bottom plate bottom side, the moving platform sliding installation is in moving platform top side, still include: limiting component, positioning component and fixed component, limiting component installation is in bottom plate top side both ends, positioning component sets up in bottom plate surface, fixed component symmetry fixed in moving platform both ends, the utility model discloses through the structure of limiting component, through the inside roller of trapezoidal table, can place spline shaft horizontally in support top side, spline shaft can rotate around the axle center under the cooperation of the roller at this moment, thereby the convenient detection personnel uses the dial gauge to detect its axle center distance, makes this detection frock to be able to detect a variety of data, and the more wide application scope.

Description

Technical Field

[0001] This utility model relates to the field of spline shaft keyway detection technology, specifically an adjustable pitch support spline shaft keyway detection fixture. Background Technology

[0002] A splined shaft is a mechanical transmission component. Its outer surface is machined with multiple evenly distributed keyways, which cooperate with a spline sleeve with corresponding key teeth. Torque is transmitted through the meshing of the teeth and slots. Splined shafts have advantages such as large transmission torque, high centering accuracy, and uniform load-bearing capacity, making them widely used in automobiles, machine tools, and construction machinery.

[0003] A search revealed that publication number CN213422048U discloses a spline shaft keyway inspection fixture, belonging to the field of machining technology. It consists of an inspection jig as the main body, with an inspection ring fixed on it. A standard keyway is provided inside the inspection ring. An inspection strip is provided on the inspection jig. A sliding bar with a groove is provided on the worktable. A support rod is placed in the groove. A first limiting block and a second limiting block are respectively provided at both ends of the groove. Two limiting bolts are provided opposite to each of the first and second limiting blocks. A blind hole is provided on each of the left and right sides of the support rod. An oblong through hole is provided on the front and rear sides of the support rod. An upper limiting bolt and a lower limiting bolt are provided in the oblong through hole. A fixing rod is horizontally inserted between the upper and lower limiting bolts. A dial indicator is fixed to the fixing rod and has a measuring head. The free end of the inspection strip is aligned with the measuring head. This utility model offers simple inspection operation and allows for adjustment of the dial indicator's position as needed, making it convenient to use.

[0004] The above-described spline shaft keyway inspection fixture still has problems. During the use of this inspection fixture, it can only detect the gap between the keyway and the standard keyway using a dial indicator. The types of inspection are relatively limited, resulting in a small scope of application for this inspection fixture. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Given that the existing testing fixture can only detect the gap between the keyway and the standard keyway using a dial indicator, the type of detection is relatively limited, resulting in a narrow range of applications for the testing fixture.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] Adjustable pitch support spline shaft keyway inspection fixture, including:

[0009] A base plate, a base, and a movable platform; the base is fixed to the bottom side of the base plate.

[0010] The mobile platform is slidably mounted on the top side of the base plate, and also includes:

[0011] Limiting components, positioning components, and fixing components;

[0012] The limiting components are installed at both ends of the top side of the base plate.

[0013] The positioning component is disposed on the surface of the base plate.

[0014] The fixing components are symmetrically fixed at both ends of the mobile platform.

[0015] As a further embodiment of this utility model: the limiting component includes: a support, a trapezoidal platform, a groove, a limiting rod, a roller, and a spline shaft body; the support is symmetrically installed at both ends of the top side of the base plate, and the trapezoidal platform is fixed on the top side of the support.

[0016] As a further embodiment of this utility model: a groove is provided on the inner side of the trapezoidal platform, and a limiting rod is symmetrically fixed on the inner side of the groove. Rollers are rotatably installed on the limiting rods, and the rollers are symmetrically arranged at both ends of the inner side of the groove.

[0017] As a further embodiment of this utility model: a spline shaft body is placed on the top side of the trapezoidal platform, and the two ends of the spline shaft body are closely fitted with the circumferential surface of the roller.

[0018] As a further embodiment of this utility model: the positioning component includes: a fixing hole, a screw fixing pin and a positioning hole; the fixing holes are symmetrically opened at both ends of the top side of the support.

[0019] As a further embodiment of this utility model: the bottom plate has symmetrically and evenly spaced positioning holes on its top side, and screw fixing pins are inserted and installed inside the positioning holes, with the screw fixing pins inserted inside the fixing holes.

[0020] As a further embodiment of this utility model: the fixing component includes: a support plate, a sliding rod, a clamping plate, a connecting seat, a threaded rod, and a turntable; the support plate is symmetrically fixed at both ends of the top side of the moving platform, and the sliding rod is symmetrically slidably inserted through the top of the inner side of the support plate.

[0021] As a further embodiment of this utility model: a clamping plate is fixed to one end of the inner side of the slide rod, a connecting seat is fixed at the center of the circumference of the clamping plate, a threaded rod is rotatably installed on the inner side of the connecting seat, one end of the threaded rod passes through the support plate and a turntable is fixed thereon, and the threaded rod is rotatably connected to the support plate.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] This invention utilizes the structure of a limiting component and rollers on the inner side of a trapezoidal platform to horizontally place the spline shaft on the top side of the support. With the cooperation of the rollers, the spline shaft can rotate around its axis, thus preventing inspectors from using a dial indicator to measure its axis distance. This allows the inspection fixture to measure a variety of data and has a wider range of applications. Attached Figure Description

[0024] Figure 1 A schematic diagram of the structure of the adjustable pitch support spline shaft keyway inspection fixture;

[0025] Figure 2 A side sectional view of the limit assembly of the adjustable pitch support spline shaft keyway inspection fixture;

[0026] Figure 3 A top-view sectional view of the structure of the adjustable-pitch support spline shaft keyway inspection fixture.

[0027] Figure 4 A front sectional view of the positioning assembly for the adjustable pitch support spline shaft keyway inspection tooling;

[0028] Figure 5 This is a side sectional view of the fixture fixing assembly for the adjustable pitch support spline shaft keyway inspection.

[0029] Numbered in the diagram: 1. Base plate;

[0030] 2. Limiting component; 21. Support; 22. Trapezoidal platform; 23. Groove; 24. Limiting rod; 25. Roller; 26. Splined shaft body;

[0031] 3. Positioning component; 31. Fixing hole; 32. Screw fixing pin; 33. Positioning hole;

[0032] 4. Base; 5. Movable platform;

[0033] 6. Fixing component; 61. Support plate; 62. Slide rod; 63. Clamping plate; 64. Connecting seat; 65. Threaded rod; 66. Turntable. Detailed Implementation

[0034] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0035] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0036] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0037] Example 1:

[0038] Please see Figure 1 - Figure 3 This is the first embodiment of the present invention.

[0039] This embodiment provides an adjustable-pitch support spline shaft keyway inspection fixture, including:

[0040] Base plate 1, base 4, and moving platform 5; base 4 is fixed to the bottom side of base plate 1.

[0041] The movable stage 5 is slidably mounted on the top side of the base plate 1, and also includes:

[0042] Limiting component 2, positioning component 3, and fixing component 6;

[0043] Limiting components 2 are installed at both ends of the top side of the base plate 1.

[0044] Positioning component 3 is mounted on the surface of base plate 1.

[0045] The fixed components 6 are symmetrically fixed at both ends of the moving platform 5.

[0046] Specifically, the limiting component 2 includes: a support 21, a trapezoidal platform 22, a groove 23, a limiting rod 24, a roller 25, and a spline shaft body 26; the support 21 is symmetrically installed at both ends of the top side of the base plate 1, the trapezoidal platform 22 is fixed on the top side of the support 21, the groove 23 is provided on the inner side of the trapezoidal platform 22, the limiting rod 24 is symmetrically fixed on the inner side of the groove 23, the roller 25 is rotatably installed on the limiting rod 24, and the roller 25 is symmetrically arranged at both ends of the inner side of the groove 23, the spline shaft body 26 is placed on the top side of the trapezoidal platform 22, and the two ends of the spline shaft body 26 are tightly fitted with the circumferential surface of the roller 25.

[0047] Furthermore, the spline shaft can be placed on the top side of the symmetrically arranged support 21. During the inspection process, the spline shaft can be rotated to detect its center distance, as well as its keyway and bending condition, thereby ensuring the quality of the spline shaft and making the inspection fixture more widely applicable.

[0048] In use, the supports 21 are fixed at the desired positions on both ends of the top side of the base plate 1. At this time, the spline shaft body 26 can be placed on the top side of the trapezoidal platform 22, so that the spline shaft body 26 contacts the circumferential surface of the roller 25. With the cooperation of the roller 25, the spline shaft can be pushed to rotate around its axis. At this time, a dial indicator can be used to check its axis distance. At the same time, the keyway of the spline shaft can be rotated to the top side to check its keyway, ensuring that the quality of the spline shaft is qualified, so that the testing fixture can be used in a variety of testing environments.

[0049] In summary, through the structure of the limiting component 2 and the rollers 25 on the inner side of the trapezoidal platform 22, the spline shaft can be placed horizontally on the top side of the support 21. At this time, with the cooperation of the rollers 25, the spline shaft can rotate around the axis, thereby preventing the inspector from using a dial indicator to check its axis distance. This allows the inspection fixture to detect a variety of data and has a wider range of applications.

[0050] Example 2:

[0051] Please see Figure 4 - Figure 5 This is the second embodiment of the present utility model.

[0052] Specifically, the positioning component 3 includes: a fixing hole 31, a screw fixing pin 32, and a positioning hole 33; the fixing holes 31 are symmetrically opened at both ends of the top side of the support 21, and the positioning holes 33 are evenly and symmetrically opened on the top side of the base plate 1. The screw fixing pin 32 is inserted and installed inside the positioning hole 33, and the screw fixing pin 32 is inserted inside the fixing hole 31.

[0053] Furthermore, the structure of fixing the pin 32 and the positioning hole 33 with screws allows for quick disassembly and assembly of the support 21, thereby moving the support 21 to the required positioning hole 33 according to the model and size of the spline shaft, making it more widely applicable.

[0054] Specifically, the fixed component 6 includes: a support plate 61, a slide rod 62, a clamping plate 63, a connecting seat 64, a threaded rod 65, and a turntable 66; the support plate 61 is symmetrically fixed at both ends of the top side of the moving platform 5, the slide rod 62 is symmetrically slidably inserted through the top of the inner side of the support plate 61, the clamping plate 63 is fixed at one end of the inner side of the slide rod 62, the connecting seat 64 is fixed at the center of the circumference of the clamping plate 63, the threaded rod 65 is rotatably installed on the inner side of the connecting seat 64, one end of the threaded rod 65 passes through the support plate 61 and the turntable 66 is fixed thereto, and the threaded rod 65 is rotatably connected to the support plate 61.

[0055] Furthermore, the structure of the threaded rod 65 and the clamping plate 63 allows the dial indicator to be clamped and fixed on the top side of the spline shaft, thereby preventing the dial indicator from affecting the accuracy of the test results due to positional displacement during the testing process.

[0056] In use, remove the screw fixing pin 32 from the surface of one side of the support 21 to release the fixation of the support 21. At this time, select the required positioning hole 33 according to the size and model of the spline shaft to be tested, and move the support 21 to the positioning hole 33. Reinsert the screw fixing pin 32 into the support 21 and the positioning hole 33 to fix its position. Then place the spline shaft on the top side of the support 21 for testing. At this time, place the dial indicator between the clamping plates 63, rotate the turntable 66 to drive the threaded rod 65 to rotate, thereby driving the clamping plate 63 to move along the slide rod 62, so that the clamping plate 63 clamps and fixes the dial indicator on the top side of the spline shaft, and makes its testing end contact the spline shaft. During the testing process, the moving stage 5 can be pushed to slide along the base plate 1, thereby driving the dial indicator to test the axis distance of the spline shaft. The operation is simple and the test results are more accurate.

[0057] In summary, through the structure of the positioning component 3 and the fixing component 6, the support 21 can be fixed at the required positioning hole 33 with the cooperation of the screw fixing pin 32, so as to test spline shafts of different sizes and models. At the same time, with the cooperation of the clamping plate 63, the position of the dial indicator can be prevented from shifting during the test, making the test results more accurate.

[0058] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0059] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0060] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0061] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An adjustable-pitch support spline shaft keyway inspection fixture, characterized in that: include: Base plate (1), base (4) and moving platform (5); The base (4) is fixed to the bottom side of the base plate (1), and the moving platform (5) is slidably mounted on the top side of the base plate (1). The system also includes: Limiting component (2), positioning component (3) and fixing component (6); the limiting component (2) is installed on both ends of the top side of the base plate (1), the positioning component (3) is set on the surface of the base plate (1), and the fixing component (6) is symmetrically fixed on both ends of the moving platform (5).

2. The adjustable-pitch support spline shaft keyway inspection fixture according to claim 1, characterized in that, The limiting component (2) includes: a support (21), a trapezoidal platform (22), a groove (23), a limiting rod (24), a roller (25), and a spline shaft body (26); the support (21) is symmetrically installed at both ends of the top side of the base plate (1), and the trapezoidal platform (22) is fixed on the top side of the support (21).

3. The adjustable-pitch support spline shaft keyway inspection fixture according to claim 2, characterized in that, The trapezoidal platform (22) has a groove (23) on its inner side. A limit rod (24) is symmetrically fixed inside the groove (23). A roller (25) is rotatably installed on the limit rod (24), and the rollers (25) are symmetrically arranged at both ends inside the groove (23).

4. The adjustable-pitch support spline shaft keyway inspection fixture according to claim 3, characterized in that, The top side of the trapezoidal platform (22) is provided with a spline shaft body (26), and the two ends of the spline shaft body (26) are in close contact with the circumferential surface of the roller (25).

5. The adjustable-pitch support spline shaft keyway inspection fixture according to claim 2, characterized in that, The positioning component (3) includes: a fixing hole (31), a screw fixing pin (32) and a positioning hole (33); the fixing hole (31) is symmetrically opened at both ends of the top side of the support (21).

6. The adjustable-pitch support spline shaft keyway inspection fixture according to claim 1, characterized in that, The bottom plate (1) has symmetrically and evenly arranged positioning holes (33) on its top side. A screw fixing pin (32) is inserted into the inner side of the positioning hole (33) and the screw fixing pin (32) is inserted into the inner side of the fixing hole (31).

7. The adjustable-pitch support spline shaft keyway inspection fixture according to claim 1, characterized in that, The fixing component (6) includes: a support plate (61), a slide rod (62), a clamping plate (63), a connecting seat (64), a threaded rod (65), and a turntable (66); the support plate (61) is symmetrically fixed at both ends of the top side of the moving platform (5), and the slide rod (62) is symmetrically slidably inserted through the top of the inner side of the support plate (61).

8. The adjustable-pitch support spline shaft keyway inspection fixture according to claim 7, characterized in that, A clamping plate (63) is fixed to one end of the inner side of the slide rod (62). A connecting seat (64) is fixed at the center of the circumference of the clamping plate (63). A threaded rod (65) is rotatably installed on the inner side of the connecting seat (64). One end of the threaded rod (65) passes through the support plate (61) and is fixed to a turntable (66). The threaded rod (65) is rotatably connected to the support plate (61).

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