Spline shaft tooth alignment testing fixture

Abstract

The utility model discloses a spline shaft tooth alignment testing fixture in the related technical field of spline shaft detection, which comprises a main frame and a supporting seat fixedly arranged above the main frame, the supporting seat is of a V-shaped seat supporting structure, the side edge of the supporting seat is fixedly provided with a supporting frame, and the supporting frame is fixedly provided with a compression fixing telescopic rod. The spline shaft tooth alignment testing fixture is provided with the spline detection go gauge and the spline detection no-go gauge, can effectively detect the size specification and the size precision of a spline and the arrangement condition of spline grooves, and is qualified if the spline can pass through the go gauge and cannot pass through the no-go gauge; the center height of the spline shaft can be accurately calculated, the lifting hydraulic cylinders are arranged below the first detection mold and the second detection mold, it is ensured that the detection molds and the spline shaft are coaxial, the accuracy of the detection result is further ensured, the spline detection go gauge and the spline detection no-go gauge are of detachable structural design, and the detection use requirements of spline shafts of different specifications can be met.

Description

Technical Field

[0001] The utility model belongs to the technical field related to spline shaft detection, and specifically relates to a spline shaft tooth alignment inspection tool. Background Art

[0002] The spline shaft is a kind of mechanical transmission. It has the same function as the flat key, semicircular key and wedge key, and transmits mechanical torque. There are longitudinal keyways on the surface of the shaft, and the rotating parts on the shaft also have corresponding keyways, which can keep rotating synchronously with the shaft. While rotating, some can also slide longitudinally on the shaft, such as the gearbox shift gear, etc. There are transmission teeth at both ends of the spline shaft. Before leaving the factory, the teeth at both ends of the spline shaft need to be tested to detect the coaxiality of the teeth at both ends. The existing detection equipment for the coaxiality of the teeth at both ends of the spline shaft has a complex structure and is inconvenient to operate, which not only increases the detection cost, but also has low detection efficiency. Patent No.: CN202122634409.7 discloses a spline shaft tooth inspection fixture. The operator can first place the middle of the fixed ring through which the spline shaft passes, and the first clamping plate and the second clamping plate on both sides of the middle of the fixed ring can clamp and fix the middle of the spline shaft. The first detection ring and the second detection ring can be moved left and right on the inner side of the through hole to adjust the distance through the guide rod. When the two are pulled out, the guide rod will squeeze the buffer spring through the limit plate to deform it. When the guide rod is released, the guide rod will be rebounded by the buffer spring, driving the first detection ring and the second detection ring back to their original position. If at this time the two ends of the spline shaft can be Synchronously penetrating the inner side of the tooth hole indicates that the spline shaft coaxiality test is qualified. If one end of the spline shaft cannot penetrate the tooth hole, it indicates that the spline shaft coaxiality test is unqualified. It is simple and convenient, and can greatly improve the overall detection efficiency. The spline shaft tooth inspection fixture clamps the spline shaft through a fixing ring, and only relies on the elastic force of the spring reset to clamp. For the spline shaft made of metal, the fixing stability is not good, and there are certain safety hazards. In addition, the tooth inspection fixture is mainly used to detect the coaxiality of the teeth at both ends of the spline shaft, and cannot effectively detect the size specifications, dimensional accuracy, and arrangement of the spline grooves of the spline teeth.

[0003] In view of this, the present utility model is proposed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a spline shaft tooth alignment inspection tool. To solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0005] The spline shaft tooth alignment inspection fixture comprises a main frame and a support seat fixedly mounted thereon, the support seat being a V-shaped seat support structure, a support frame is fixedly arranged on the side of the support seat, a clamping and fixing telescopic rod is fixedly mounted on the support frame, a fixed clamping block is fixedly mounted on the lower end of the clamping and fixing telescopic rod, a clamping surface of the fixed clamping block is a V-shaped structure, a detection mold 1 and a detection mold 2 are respectively arranged at both ends of the support seat, the detection mold 1 comprises a lifting hydraulic cylinder, a fixed mounting seat plate 1, a fixed mounting seat plate 2, a spline detection through gauge and a spline detection stop gauge, the main structure of the detection mold 2 is the same as the main structure of the detection mold 1, an extension plate is fixedly arranged on the side of the support frame, a distance measuring sensor 1 is fixedly mounted on the extension plate, a distance measuring sensor 2 is arranged on the main frame at a position directly below the distance measuring sensor, and the center height of the spline shaft can be accurately calculated by the distance measuring sensor 1 and the distance measuring sensor 2.

[0006] As a further solution of the utility model: a movable slide groove is opened on the main frame at a position below the lifting hydraulic cylinder, and a movable card plate is fixedly arranged below the lifting hydraulic cylinder. The movable card plate is clamped and installed in the movable slide groove to ensure that the lifting hydraulic cylinder can move stably along the movable slide groove.

[0007] As a further solution of the utility model: translation hydraulic cylinders are fixedly installed at both end positions below the main frame, the ends of the telescopic rods of the translation hydraulic cylinders are fixedly connected to the moving card plate, and the translation hydraulic cylinders are used to provide power support for the horizontal movement of the lifting hydraulic cylinder.

[0008] As a further solution of the utility model: the fixed mounting seat plate 1 is fixedly mounted on the telescopic rod of the lifting hydraulic cylinder, and the fixed mounting seat plate 1 and the fixed mounting seat plate 2 are connected via a spacing adjustment telescopic rod, and the spacing adjustment telescopic rod is an electric telescopic rod, and the spacing adjustment telescopic rod is used to adjust the spacing between the fixed mounting seat plate 1 and the fixed mounting seat plate 2 to meet the detection requirements of spline shafts of different length specifications.

[0009] As a further solution of the utility model: matching installation grooves are provided on the fixed installation seat plate one and the fixed installation seat plate two, and fixed installation side plates are fixedly provided on the outer sides of the spline detection through gauge and the spline detection no-go gauge, and the size specifications of the fixed installation side plates are mutually adapted to the size specifications of the matching installation grooves to ensure the installation accuracy of the spline detection through gauge and the spline detection no-go gauge.

[0010] As a further solution of the utility model: the spline detection through gauge is installed on the fixed mounting seat plate one, and the spline detection stop gauge is installed on the fixed mounting seat plate two, and is fixed by fixing screws to facilitate replacement of the spline detection through gauge and the spline detection stop gauge of different specifications.

[0011] As a further solution of the utility model: the fixed clamping block is located directly above the support seat, and protective pads are provided on the V-shaped surfaces of the fixed clamping block and the V-shaped surfaces of the support seat to avoid bumps and scratches on the surface of the spline shaft.

[0012] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art.

[0013] The spline shaft tooth inspection fixture of the utility model is provided with a spline inspection through gauge and a spline inspection stop gauge, which can effectively inspect the size specification, dimensional accuracy and arrangement of the spline grooves. The through gauge can pass and the stop gauge cannot pass, which means the spline is qualified.

[0014] The utility model is provided with distance measuring sensor 1 and distance measuring sensor 2, which can accurately calculate the center height of the spline shaft. A lifting hydraulic cylinder is arranged under the detection mold 1 and the detection mold 2 to ensure that the detection mold is coaxial with the spline shaft, thereby ensuring the accuracy of the detection result. The spline detection go gauge and stop gauge are designed with detachable structures, which can meet the detection and use requirements of spline shafts of different specifications.

[0015] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are part of this application and are used to provide a further understanding of the utility model. The schematic embodiments of the utility model and their descriptions are used to explain the utility model, but do not constitute an improper limitation on the utility model. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is the front view of the utility model;

[0019] Figure 3 It is a side view of the utility model;

[0020] Figure 4 This is a schematic diagram of the detection mold structure of the utility model;

[0021] Figure 5This is a top view of the detection mold of the utility model.

[0022] In the figure: 1. Main frame; 2. Support seat; 3. Support frame; 4. Extension plate; 5. Fixed clamping block; 6. Detection mold 1; 7. Detection mold 2; 8. Distance sensor 1; 9. Distance sensor 2; 10. Spline detection through gauge; 11. Spline detection stop gauge; 12. Spacing adjustment telescopic rod; 13. Lifting hydraulic cylinder; 14. Fixed mounting seat plate 1; 15. Fixed mounting seat plate 2; 16. Matching mounting groove; 17. Fixing screws; 18. Fixed mounting side plate; 19. Pressing and fixing telescopic rod; 20. Translation hydraulic cylinder; 21. Moving slide; 22. Moving card plate.

[0023] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0025] like Figures 1 to 5 As shown, the spline shaft tooth alignment inspection fixture comprises a main frame 1 and a support seat 2 fixedly mounted thereon, the support seat 2 is a V-shaped seat support structure, a support frame 3 is fixedly arranged on the side of the support seat 2, a clamping and fixing telescopic rod 19 is fixedly mounted on the support frame 3, a fixed clamping block 5 is fixedly mounted on the lower end of the clamping and fixing telescopic rod 19, and the clamping surface of the fixed clamping block 5 is a V-shaped structure, and a detection mold 16 and a detection mold 27 are respectively arranged at both ends of the support seat 2, the detection mold 16 comprises a lifting hydraulic cylinder 13, a fixed mounting seat plate 14, a fixed mounting seat plate 2 15, a spline detection through gauge 10 and a spline detection stop gauge 11, and the main structure of the detection mold 27 is the same as the main structure of the detection mold 16, an extension plate 4 is fixedly arranged on the side of the support frame 3, a distance sensor 18 is fixedly mounted on the extension plate 4, and a distance sensor 29 is arranged on the main frame 1 at a position directly below the distance sensor, and the center height of the spline shaft can be accurately calculated by the distance sensor 18 and the distance sensor 29.

[0026] Among them, a movable slide groove 21 is opened on the main frame 1 at a position below the lifting hydraulic cylinder 13, and a movable card plate 22 is fixedly arranged below the lifting hydraulic cylinder 13. The movable card plate 22 is clamped and installed in the movable slide groove 21 to ensure that the lifting hydraulic cylinder 13 can move stably along the movable slide groove 21.

[0027] A translation hydraulic cylinder 20 is fixedly installed at both end positions below the main frame 1 , and the end positions of the telescopic rods of the translation hydraulic cylinder 20 are fixedly connected to the moving card plate 22 . The translation hydraulic cylinder 20 is used to provide power support for the horizontal movement of the lifting hydraulic cylinder 13 .

[0028] The fixed mounting seat plate 14 is fixedly mounted on the telescopic rod of the lifting hydraulic cylinder 13. The fixed mounting seat plate 14 and the fixed mounting seat plate 2 15 are connected via a spacing adjustment telescopic rod 12. The spacing adjustment telescopic rod 12 is an electric telescopic rod. The spacing adjustment telescopic rod 12 is used to adjust the spacing between the fixed mounting seat plate 14 and the fixed mounting seat plate 2 15 to meet the detection requirements of spline shafts of different length specifications.

[0029] Matching installation grooves 16 are provided on the fixed installation seat plate 14 and the fixed installation seat plate 2 15, and fixed installation side plates 18 are fixedly provided on the outer sides of the spline detection through gauge 10 and the spline detection no-stop gauge 11. The size specifications of the fixed installation side plates 18 are compatible with the size specifications of the matching installation grooves 16 to ensure the installation accuracy of the spline detection through gauge 10 and the spline detection no-stop gauge 11.

[0030] The spline detection through gauge 10 is installed on the fixed mounting base plate 14, and the spline detection stop gauge 11 is installed on the fixed mounting base plate 2 15, and is fixed by fixing screws 17, so as to facilitate the replacement of the spline detection through gauge 10 and the spline detection stop gauge 11 of different specifications.

[0031] The fixed clamping block 5 is located directly above the support seat 2. Protective pads are provided on the V-shaped surfaces of the fixed clamping block 5 and the V-shaped surfaces of the support seat 2 to prevent bumps and scratches on the surface of the spline shaft.

[0032] The working principle of the utility model is as follows: when the spline shaft is inspected for teeth, the spline shaft is hoisted and placed on the support seat 2, and the corresponding spline inspection gauge 11 and spline inspection gauge 10 are selected according to the spline specifications at both ends of the spline shaft, and are respectively installed in the matching installation grooves 16 on the fixed installation seat plate 2 15 and the fixed installation seat plate 1 14. The size of the inspection slot of the spline inspection gauge 10 is the upper difference limit size of the spline protrusion, and the size of the inspection slot of the spline inspection gauge 11 is the lower difference limit size of the spline protrusion. The spline inspection gauge 10 and the spline inspection gauge 11 are used as inspection templates, and three-coordinate dimensional inspection is required to be carried out regularly to check the wear and accuracy to ensure that the spline inspection gauge 10 and the spline inspection gauge 11 are within the accuracy range;

[0033] When the deadweight of the spline shaft is large, it is ensured that it will not move during the detection process. It is not necessary to fix it by the fixed clamping block 5. The deadweight of the spline shaft is small, and it is necessary to start the clamping and fixing telescopic rod 19 to drive the fixed clamping block 5 to move downward to clamp and fix the spline shaft. The center height of the spline shaft can be accurately calculated by the distance sensor 1 8 and the distance sensor 2 9. According to the center height detection result, the height position of the spline detection through gauge 10 and the spline detection stop gauge 11 is adjusted by the lifting hydraulic cylinder 13 to ensure that they are coaxial with the spline shaft. The translation hydraulic cylinder 20 can drive the detection mold 1 6 and the detection mold 2 7 to move horizontally to detect the spline teeth.

[0034] The novel structure of the present invention is reasonably designed and easy to install and use. The spline shaft tooth inspection fixture is provided with a spline detection through gauge 10 and a spline detection stop gauge 11, which can effectively detect the size specifications, dimensional accuracy and arrangement of the spline grooves. The through gauge can pass and the stop gauge cannot pass, which is qualified. A distance sensor 1 8 and a distance sensor 2 9 are provided, which can accurately calculate the center height of the spline shaft. A lifting hydraulic cylinder 13 is provided under the detection mold 1 6 and the detection mold 2 7 to ensure that the detection mold is coaxial with the spline shaft, thereby ensuring the accuracy of the detection result. The spline detection through gauge 10 and the stop gauge are detachable structure designs, which can meet the detection and use requirements of spline shafts of different specifications.

[0035] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this patent can make some changes or modify the technical content suggested above into an equivalent embodiment with equivalent changes without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of the solution of the utility model.

Claims

1. A spline shaft gear alignment inspection fixture, comprising a main frame (1) and a support base (2) fixedly mounted on the main frame, characterized in that: The support seat (2) is a V-shaped support structure. A support frame (3) is fixedly arranged on the side of the support seat (2). A clamping and fixing telescopic rod (19) is fixedly installed on the support frame (3). A fixed clamping block (5) is fixedly installed at the lower end of the clamping and fixing telescopic rod (19). The clamping surface of the fixed clamping block (5) is a V-shaped structure. The two ends of the support seat (2) are respectively provided with a detection mold 1 (6) and a detection mold 2 (7). The detection mold 1 (6) includes a lifting hydraulic cylinder ( 13), a fixed mounting seat plate one (14), a fixed mounting seat plate two (15), a spline detection go gauge (10) and a spline detection stop gauge (11); the main structure of the detection mold two (7) is the same as the main structure of the detection mold one (6); an extension plate (4) is fixedly arranged on the side of the support frame (3); a distance sensor one (8) is fixedly mounted on the extension plate (4); and a distance sensor two (9) is arranged on the main frame (1) at a position directly below the distance sensor one.

2. The spline shaft tooth alignment test fixture according to claim 1, characterized in that: A movable slide groove (21) is provided on the main frame (1) at a position below the lifting hydraulic cylinder (13); a movable card plate (22) is fixedly arranged below the lifting hydraulic cylinder (13); and the movable card plate (22) is clamped and installed in the movable slide groove (21).

3. The spline shaft tooth alignment test fixture according to claim 2, characterized in that: A translation hydraulic cylinder (20) is fixedly installed at both end positions below the main frame (1), and the end positions of the telescopic rods of the translation hydraulic cylinder (20) are fixedly connected to the movable clamping plate (22).

4. The spline shaft tooth alignment test fixture according to claim 3, characterized in that: The fixed mounting seat plate one (14) is fixedly mounted on the telescopic rod of the lifting hydraulic cylinder (13), and the fixed mounting seat plate one (14) is connected to the fixed mounting seat plate two (15) via a spacing adjustment telescopic rod (12), and the spacing adjustment telescopic rod (12) is an electric telescopic rod.

5. The spline shaft tooth alignment test fixture according to claim 4, characterized in that: The fixed mounting seat plate 1 (14) and the fixed mounting seat plate 2 (15) are both provided with matching mounting grooves (16), and the outer sides of the spline detection through gauge (10) and the spline detection stop gauge (11) are both fixedly provided with fixed mounting side plates (18), and the size specifications of the fixed mounting side plates (18) are mutually compatible with the size specifications of the matching mounting grooves (16).

6. The spline shaft tooth alignment test fixture according to claim 5, characterized in that: The spline detection go gauge (10) is mounted on the fixed mounting seat plate 1 (14), and the spline detection stop gauge (11) is mounted on the fixed mounting seat plate 2 (15), and fixed by fixing screws (17).

7. The spline shaft tooth alignment test fixture according to claim 6, characterized in that: The fixed pressing block (5) is located directly above the support seat (2), and protective pads are provided on the V-shaped surface of the fixed pressing block (5) and the V-shaped surface of the support seat (2).

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