A spline shaft detection device

Abstract

The present invention relates to the technical field of parts detection, and discloses a spline shaft detection device, comprising a base plate, wherein a placement ring is symmetrically arranged directly above the base plate, the inner walls of the two placement rings are slidably connected with a locking ring, a spline shaft is placed between the outer walls of the two placement rings, the outer walls of the keyways at both ends of the spline shaft are slidably connected with a fitting key shaft, one side of the two fitting key shafts is provided with an extrusion component, one side of the extrusion component is provided with an impact component, and one side of the extrusion component is provided with an impact component for detecting whether the lengths of each keyway at one end are consistent, the extrusion component determines whether the lengths of each keyway at each end are the same by whether it drives the impact component to make a sound during the movement, and can also detect whether the keyway lengths at both ends are consistent by the time difference of the sound, so as to avoid the reduction of the spline shaft transmission efficiency due to inconsistent keyway lengths.

Description

Technical Field

[0001] The invention belongs to the technical field of parts detection, and specifically relates to a spline shaft detection device. Background Art

[0002] As a commonly used component in mechanical transmission, the spline shaft is mainly used to transmit mechanical torque. It is often used in brakes and steering mechanisms. The spline shaft is usually used in conjunction with a spline sleeve. There are multiple keyways on the circumferential surface of the two ends of the spline shaft and the middle part, and the keyways on the spline shaft are used to cooperate with the corresponding spline sleeves, so that the spline shaft can realize the transmission of mechanical torque.

[0003] The prior art also proposes some solutions: For example, a patent application with the publication number CN116538901A discloses a post-manufacturing inspection device for a spline shaft, including a bottom plate, a placement block, an inspection mechanism and a clamping mechanism. The clamping mechanism provided in the present invention works through the No. 3 drive group so that the upper pressure plate and the lower top plate on different rotating bars cooperate with each other, and the rotation directions of the two rotating bars are opposite, so as to cooperate with the keyway in the middle part of the spline shaft to complete the clamping and fixing of the spline shaft, thereby avoiding the influence of the keyway of the spline shaft on the clamping, and ensuring the clamping and fixing effect of the spline shaft. The multiple L-shaped plates cooperate with the driving ring so that the mounting circular plate at this time is coaxial with the area in the keyway of the spline shaft, so that the clamping of the two ends of the spline shaft is completed while facilitating the subsequent coaxiality inspection, and avoiding the occurrence of errors in subsequent inspection data due to the existence of the keyways at both ends of the spline shaft.

[0004] When the existing device detects the spline shaft, since both ends of the commonly used spline shaft have keyways, and the spline shaft is usually used in conjunction with a spline sleeve for detection, there is a lack of detection of whether the lengths of the keyways at both ends are consistent. Inconsistent keyway lengths may cause unstable transmission of the spline shaft during rotation, because the couplings or connecting parts at both ends may not be aligned, resulting in vibration and imbalance in transmission, and difficulty in alignment. In addition, during the detection process, it is also necessary to detect the lengths of multiple keyways at each end to determine whether the spline shaft manufacturing meets the design specifications and quality standards.

[0005] To this end: the present invention provides a spline shaft detection device. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art: solve at least one technical problem raised in the background technology.

[0007] The technical solution adopted by the present invention to solve its technical problem is: a spline shaft detection device described in the present invention includes a base plate, a placement ring is symmetrically arranged directly above the base plate, the inner walls of the two placement rings are slidably connected with locking rings, a spline shaft is placed between the outer walls of the two placement rings, and the locking ring fixes the position of the spline shaft after placement through the sliding relationship between the placement rings, the spline shaft consists of a main shaft and a key shaft of the same length at both ends, the outer walls of the key grooves at both ends of the spline shaft are slidably connected with a fitting key shaft, the bottoms of the two fitting key shafts are fixedly connected with a conveying slider, a driving assembly is arranged on one side of the conveying slider, the driving assembly is used to drive the two conveying sliders to move closer or farther from each other, an extrusion assembly is arranged on one side of the two fitting key shafts, and an impact assembly is arranged on one side of the extrusion assembly for detecting whether the lengths between each key groove at one end are consistent.

[0008] Preferably, the extrusion assembly includes two groups of plug-in rods, and each group of multiple plug-in rods are respectively plugged into the raised inner wall of the fitted key shaft, one end of each of the plug-in rods is fixedly connected to a conical block, the other end of each of the plug-in rods is fixedly connected to a connecting tube, and one end of each of the connecting tubes is fixedly connected to an extrusion block, and a deformation assembly is provided on one side of the extrusion block, and the deformation assembly is used to detect whether the length of each key slot at one end is consistent.

[0009] Preferably, a return spring 1 is provided on the outer wall of each of the plug rods, one end of the return spring 1 is fixedly connected to one side of the conical block, and the other end of the return spring 1 is fixedly connected to one side of the fitting key shaft.

[0010] Preferably, the deformation component includes a plurality of fixing seats, the inner wall of each fixing seat is provided with a slide groove, the inner wall of each slide groove is slidably connected with an I-shaped block, and each I-shaped block is respectively fitted with one side of each extrusion block.

[0011] Preferably, both sides of each of the I-shaped blocks are fixedly connected with an articulated seat 1, the inner wall of each of the articulated seats 1 is hinged with a double-end articulated block, and an arc-shaped deformation rod is hinged between each two adjacent double-end articulated blocks.

[0012] Preferably, each of the slide grooves is provided with a second return spring, one end of the second return spring is fixedly connected to one side of the I-shaped block, and the other end of the second return spring is fixedly connected to one side of the slide groove.

[0013] Preferably, the outer walls of the two fitting key shafts are fixedly connected with a connecting rod 1, the outer wall of the connecting rod 1 is fixedly connected to the outer wall of one of the fixing seats, and the outer walls of the plurality of fixing seats are fixedly connected with a disc connecting block.

[0014] Preferably, the tops of the two connecting rods one are fixedly connected to fixed rods, the tops of the two fixed rods are fixedly connected to gong drums, the outer walls of the two fixed rods are fixedly connected to fixed connecting rods, the inner sides of the fixed connecting rods are fixedly connected to hinged seats two, and the inner wall of the hinged seat two is hinged with a hammer.

[0015] Preferably, the impact assembly includes a plurality of connecting frames, and the plurality of connecting frames are respectively fixedly mounted on the outer walls of a plurality of connecting tubes, a pushing block is fixedly connected to one side of each of the connecting frames, a connecting rod 2 is hingedly connected to the bottom of the hinged seat 2, and a circular block is fixedly connected to one end of the connecting rod 2, and the mass of the circular block is equal to that of the hammer, and the force exerted by all the pushing blocks at one end simultaneously hitting the circular block will cause the circular block to hinge and rotate.

[0016] Preferably, the driving assembly includes a fixed groove seat, which is fixedly installed directly above the base plate. The inner wall of the fixed groove seat is rotatably connected with a bidirectional threaded rod. The outer wall of the bidirectional threaded rod is threadedly connected to the inner walls of two conveying slide blocks. A motor is fixedly installed on the top of the base plate. The output shaft of the motor is fixedly connected to one end of the bidirectional threaded rod. The two placement rings are fixedly installed directly above the fixed groove seat.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. A spline shaft detection device described in the present invention: the result produced by extrusion can be used to determine whether the lengths of each keyway at both ends are consistent, and whether the extrusion component drives the impact component to make a sound during movement to determine whether the lengths of each keyway at each end are the same, and whether the lengths of the keyways at both ends are consistent can be detected by the time difference of the sound, thereby avoiding the reduction of the spline shaft transmission efficiency due to inconsistent keyway lengths, and even sliding or jamming.

[0019] 2. A spline shaft detection device described in the present invention: when the I-shaped block moves to one end of the slide groove, the corresponding pushing block at the I-shaped block can just hit the circular block. Only when all the pushing blocks at one end can hit the circular block, the circular block will be hinged and rotated. At this time, since the gravity balance between the hammer and the circular block is broken, the hammer will continue to fall downward until it hits the gong and a sound is heard, so as to judge the length of the keyway at both ends and obtain the detection result. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 It is an overall stereogram of the present invention;

[0022] Figure 2 It is a schematic diagram of the structure at both ends of the spline shaft in the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the key shaft in the present invention;

[0024] Figure 4 It is a structural schematic diagram of a return spring in the present invention;

[0025] Figure 5 It is a structural schematic diagram of the I-shaped block in the present invention;

[0026] Figure 6 It is a structural schematic diagram of the fixing seat in the present invention;

[0027] Figure 7 It is a structural schematic diagram of the disc connecting block in the present invention;

[0028] Figure 8 It is a structural schematic diagram of the arc-shaped deformation rod in the present invention;

[0029] Fig. 9 It is a structural schematic diagram of the hammer in the present invention.

[0030] In the figure: 1. base plate; 2. fixed groove seat; 3. placement ring; 4. locking ring; 5. spline shaft; 6. motor; 7. two-way threaded rod; 8. conveying slide block; 9. fitting key shaft; 10. reset spring 1; 11. plug-in rod; 12. conical block; 13. connecting pipe; 14. extrusion block; 15. connecting rod 1; 16. fixed seat; 17. disc connecting block; 18. slide groove; 19. I-shaped block; 20. reset spring 2; 21. hinge seat 1; 22. double-end hinge block; 23. arc-shaped deformation rod; 24. connecting frame; 25. push block; 26. fixed rod; 27. gong and drum; 28. fixed connecting rod; 29. ​​hinge seat 2; 30. connecting rod 2; 31. hammer; 32. round block. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand: the present invention is further explained below in conjunction with specific implementation methods.

[0032] like Figure 1 to Figure 2As shown, the present invention provides a technical solution: a spline shaft detection device, comprising a base plate 1, a placing ring 3 is symmetrically arranged directly above the base plate 1, the inner walls of the two placing rings 3 are slidably connected with locking rings 4, a spline shaft 5 is placed between the outer walls of the two placing rings 3, the locking ring 4 fixes the position of the spline shaft 5 after placement through the sliding relationship with the placing ring 3, the spline shaft 5 consists of a main shaft and key shafts of the same length at both ends, the outer walls of the key grooves at both ends of the spline shaft 5 are slidably connected with fitting key shafts 9, the bottoms of the two fitting key shafts 9 are fixedly connected with a conveying slider 8, a driving assembly is arranged on one side of the conveying slider 8, the driving assembly is used to drive the two conveying sliders 8 to move closer or farther from each other, an extrusion assembly is arranged on one side of the two fitting key shafts 9, and an impact assembly is arranged on one side of the extrusion assembly for judging whether the lengths of the key grooves at both ends are consistent.

[0033] During operation: When the existing device detects the spline shaft, since both ends of the commonly used spline shaft have keyways, and the spline shaft is usually used in conjunction with a spline sleeve for detection, there is a lack of detection of whether the lengths of the keyways at both ends are consistent. Inconsistent keyway lengths may cause unstable transmission of the spline shaft during rotation, because the couplings or connecting parts at both ends may not be aligned, resulting in vibration and imbalance in transmission, and alignment difficulties. In addition, during the detection process, it is also necessary to detect the lengths of multiple keyways at each end to determine whether the spline shaft manufacturing meets the design specifications and quality standards. The main shaft of the spline shaft 5 to be detected is placed on the outer walls of the two placement rings 3, and one side of the two placement rings 3 is completely in contact with the two sides of the spline shaft 5, and the spline shaft 5 is fixed in position by the locking ring 4, and then The rear driving assembly will respectively drive the two conveying sliders 8 to move, and the conveying sliders 8 will drive the two fitting key shafts 9 to approach each other and will be inserted into the key grooves at both ends of the spline shaft 5. The fitting key shaft 9 will move along the key grooves. When the fitting key shaft 9 moves to a certain position and continues to move, the extrusion assembly will move. During the movement, the extrusion assembly determines whether the length of each key groove at each end is consistent by whether it drives the impact assembly to move. The different situations generated when the impact assembly moves can also determine whether the key groove lengths at both ends are consistent. Through the above embodiment, the length between each key groove at one end can be detected, and whether the key groove lengths at both ends are consistent can also be detected, so as to avoid the inconsistent key groove lengths leading to a decrease in the transmission efficiency of the spline shaft, or even sliding or jamming.

[0034] like Figures 2 to 4As shown, the extrusion assembly includes two groups of plug-in rods 11, and each group of multiple plug-in rods 11 are respectively plugged into the raised inner wall of the fitted key shaft 9, one end of each plug-in rod 11 is fixedly connected to a conical block 12, the other end of each plug-in rod 11 is fixedly connected to a connecting tube 13, one end of each connecting tube 13 is fixedly connected to an extrusion block 14, and a deformation assembly is provided on one side of the extrusion block 14, and the deformation assembly is used to detect whether the length of each key slot at one end is consistent.

[0035] During operation: when the two mating key shafts 9 are moved toward each other through the driving assembly, each tapered block 12 will also move. When each tapered block 12 touches the innermost end of the corresponding key groove, when the mating key shaft 9 continues to move, the tapered block 12 touching the innermost end of the corresponding key groove will squeeze the plug-in rod 11, so that the plug-in rod 11 will drive the connecting pipe 13 and the extrusion block 14 to move in the opposite direction of the movement of the tapered block 12. If the length between each key groove at one end is different, the distance moved by the extrusion block 14 in the opposite direction of the movement of the tapered block 12 is different, and the result is displayed and judged by the deformation assembly on one side of the extrusion block 14. If the key groove length is shorter, its corresponding extrusion block 14 will move first, on the contrary, if the key groove length is longer, its corresponding extrusion block 14 will move later. Through the above embodiment, it is realized to detect whether the lengths of each key groove on both ends are consistent, which helps to ensure the accuracy of the spline shaft 5 during assembly.

[0036] like Figures 2 to 4 As shown, a return spring 10 is provided on the outer wall of each plug rod 11 , one end of the return spring 10 is fixedly connected to one side of the conical block 12 , and the other end of the return spring 10 is fixedly connected to one side of the fitting key shaft 9 .

[0037] During operation: After the inspection is completed, the two mating key shafts 9 will move out of the keyway of the spline shaft 5. At this time, the position of each conical block 12 and the extrusion block 14 will be reset through the reset spring 10, so that the conical block 12 and the extrusion block 14 can be used normally during the next inspection.

[0038] like Figures 6 to 8 As shown, the deformation assembly includes a plurality of fixed seats 16 , each of which has a slide groove 18 on its inner wall, and each of which has an I-shaped block 19 slidably connected to its inner wall. Each I-shaped block 19 is respectively fitted with one side of each extrusion block 14 .

[0039] During operation: if the keyway is shorter, its corresponding extrusion block 14 will move first. When moving, the extrusion block 14 will push the corresponding I-block 19 to move on the inner wall of the slide groove 18 until one of the I-blocks 19 moves to one end of the fixed seat 16. The extrusion block 14 will stop moving. At this time, the plug-in rod 11 cannot be squeezed, and the corresponding fitting key shaft 9 will stop moving, which is convenient for subsequent judgment of whether the length of each keyway at one end of the spline shaft 5 is consistent.

[0040] like Figures 7 and 8 As shown, both sides of each I-shaped block 19 are fixedly connected with an articulated seat 21, the inner wall of each articulated seat 21 is articulated with a double-end articulated block 22, and an arc-shaped deformation rod 23 is articulated between each two adjacent double-end articulated blocks 22.

[0041] During operation: when the two mating key shafts 9 stop moving respectively, each I-shaped block 19 will move to the corresponding position according to the corresponding keyway length. Since each I-shaped block 19 is hinged by a double-end hinge block 22 and an arc-shaped deformable rod 23, when the distances moved by the I-shaped block 19 are different, the arc-shaped deformable rods 23 on both sides thereof will rotate with the hinge seat 21, and the arc-shaped deformable rods 23 will have obvious arc rotation. Through the above embodiment, the length difference between each keyway at both ends is judged by the distance moved by each I-shaped block 19 and whether each arc-shaped deformable rod 23 has arc rotation.

[0042] like Figures 7 and 8 As shown, a return spring 20 is disposed inside each slide groove 18 , one end of the return spring 20 is fixedly connected to one side of the I-shaped block 19 , and the other end of the return spring 20 is fixedly connected to one side of the slide groove 18 .

[0043] During operation: after the detection is completed, all the extrusion blocks 14 will be reset by the reset spring 10. At this time, the I-shaped blocks 19 pushed by the extrusion blocks 14 will be reset by the reset spring 20, so as to wait for the push of the extrusion blocks 14 for the next detection.

[0044] like Figure 3 and Figure 6 As shown, the outer walls of the two fitting key shafts 9 are fixedly connected with a connecting rod 15, the outer wall of the connecting rod 15 is fixedly connected to the outer wall of one of the fixing seats 16, and the outer walls of the multiple fixing seats 16 are fixedly connected with a disc connecting block 17.

[0045] During operation: the positions of the fitting key shaft 9 and the fixed seat 16 are connected by a connecting rod 15. When the fitting key shaft 9 moves, the fixed seat 16 will be driven to move, so that a certain distance is always maintained between the fitting key shaft 9 and the fixed seat 16, so that the extrusion block 14 and the I-shaped block 19 maintain a fitting relationship under normal conditions, and all the fixed seats 16 at one end are connected by a disc connecting block 17, so that all the extrusion blocks 14 at both ends can maintain a fitting relationship with the corresponding I-shaped blocks 19.

[0046] like Figure 3 and Fig. 9 As shown, the tops of the two connecting rods 15 are fixedly connected with fixed rods 26, the tops of the two fixed rods 26 are fixedly connected with gong drums 27, the outer walls of the two fixed rods 26 are fixedly connected with fixed connecting rods 28, the inner sides of the fixed connecting rods 28 are fixedly connected with hinged seats 29, and the inner walls of the hinged seats 29 are hinged with hammers 31.

[0047] During operation: when the hammer 31 is hinged and rotated, it will fall and hit the surface of the gong drum 27, making a sound. The hinge seat 29 is connected to the fixed rod 26 through the fixed connecting rod 28, so that the hinge seat 29 can also move when the key shaft 9 moves.

[0048] like Figure 6 and Fig. 9 As shown, the impact assembly includes a plurality of connecting frames 24, and the plurality of connecting frames 24 are respectively fixedly installed on the outer walls of the plurality of connecting tubes 13, and a push block 25 is fixedly connected to one side of each connecting frame 24, and a connecting rod 230 is hingedly connected to the bottom of the hinged seat 29, and a circular block 32 is fixedly connected to one end of the connecting rod 230, and the mass of the circular block 32 is equal to that of the hammer 31, and the force of all the push blocks 25 at one end hitting the circular block 32 at the same time will cause the circular block 32 to hinge and rotate.

[0049] During operation: when an I-shaped block 19 moves to one end of the slide groove 18, the pushing block 25 corresponding to the I-shaped block 19 can just hit the circular block 32. Only when all the pushing blocks 25 at one end can hit the circular block 32, the circular block 32 will be hinged and rotated. At this time, since the gravity balance between the hammer 31 and the circular block 32 is broken, the hammer 31 will continue to fall down until it hits the gong drum 27 and a sound is heard. When the sound is heard at both ends, it means that the keyway length between each end of the spline shaft 5 is the same. When a sound is heard at one end and not at the other end, the lengths of the keyways at the end with the sound are the same, and the lengths of the keyways at the end without the sound are inconsistent. When there is no sound at both ends, it means that the keyway lengths between each end are different. Through the above embodiment, the effect of accurately judging the lengths of the keyways at both ends by the sound is achieved.

[0050] like Figure 1 to Figure 2 As shown, the driving assembly includes a fixed groove seat 2, which is fixedly installed just above the base plate 1. The inner wall of the fixed groove seat 2 is rotatably connected to two bidirectional threaded rods 7. The outer walls of the two bidirectional threaded rods 7 are respectively threadedly connected to the inner walls of two conveying slide blocks 8. Motors 6 are symmetrically fixedly installed on the top of the base plate 1. The output shafts of the two motors 6 are respectively fixedly connected to one end of the two bidirectional threaded rods 7. Two placement rings 3 are both fixedly installed just above the fixed groove seat 2.

[0051] During operation: when it is necessary to inspect the spline shaft 5 after fixation, start the motor 6, and its output shaft will drive the bidirectional threaded rod 7 to rotate. When the bidirectional threaded rod 7 rotates, it will drive the two conveying sliders 8 to move closer or farther from each other, so as to detect the keyway length of the spline shaft 5, and start the two motors 6 at the same time to drive the conveying sliders 8 to move until the two fitted key shafts 9 cannot move. Then, whether a sound can be heard on both sides of the spline shaft 5 to determine whether the keyway lengths between one ends are the same, and when the sound can be heard on both sides, record whether there is a difference in the time when the sound is heard on both sides. If the difference is obvious, it means that although the length between each keyway at each end is the same, the keyway lengths between the two ends are different.

[0052] Working process: First, place the main shaft of the spline shaft 5 to be tested on the outer walls of the two placing rings 3, and one side of the two placing rings 3 is completely fitted with the two sides of the spline shaft 5 respectively, and the position of the spline shaft 5 is fixed by the locking ring 4, and then start the motor 6, and its output shaft will drive the bidirectional threaded rod 7 to rotate. When the bidirectional threaded rod 7 rotates, it will drive the two conveying sliders 8 to move closer to each other. The conveying sliders 8 will drive the two fitting key shafts 9 to approach each other and will be inserted into the keyways at both ends of the spline shaft 5, and the fitting key shafts 9 will move along the keyways.

[0053] Secondly, when the two mating key shafts 9 are moved closer to each other through the driving assembly, each conical block 12 will also move. When each conical block 12 touches the innermost end of the corresponding key groove, when the mating key shaft 9 continues to move, the conical block 12 that touches the innermost end of the corresponding key groove will squeeze the plug rod 11, so that the plug rod 11 will drive the connecting pipe 13 and the extrusion block 14 to move in the opposite direction of the movement of the conical block 12. If the length between each key groove at one end is different, the extrusion block 14 moves in the opposite direction of the movement of the conical block 12 at different distances. The extrusion block 14 corresponding to the shorter key groove will move first, and the extrusion block 14 will push the corresponding I-shaped block 19 to move on the inner wall of the slide groove 18 when moving, until one of the I-shaped blocks 19 moves on the inner wall of the slide groove 18 ... When the block 19 moves to one end of the fixed seat 16, the extrusion block 14 will stop moving. At this time, the plug-in rod 11 cannot be squeezed, and the two fitting key shafts 9 will stop moving. When the two fitting key shafts 9 stop moving, each of the I-blocks 19 will move to the corresponding position according to the corresponding keyway length. Since each of the I-blocks 19 is hinged by the double-end hinge block 22 and the arc-shaped deformable rod 23, when the distances moved by the I-blocks 19 are different, the arc-shaped deformable rods 23 on both sides thereof will rotate with the hinge seat 21, and the arc-shaped deformable rods 23 will have obvious arc rotation. Through the above embodiment, the length difference between each keyway at both ends is judged by the distance moved by each I-block 19 and whether each arc-shaped deformable rod 23 has arc rotation.

[0054] Finally, when an I-shaped block 19 moves to one end of the slide groove 18, the pushing block 25 corresponding to the I-shaped block 19 can just hit the circular block 32. Only when all the pushing blocks 25 at one end can hit the circular block 32, the circular block 32 will be hinged and rotated. At this time, since the gravity balance between the hammer 31 and the circular block 32 is broken, the hammer 31 will continue to fall down until it hits the gong drum 27 and a sound is heard. When the sound is heard at both ends, it means that the keyway length between each end of the spline shaft 5 is the same. When a sound is heard at one end and not at the other end, the lengths of the keyways at the end with the sound are the same, and the lengths of the keyways at the end without the sound are inconsistent. When there is no sound at both ends, it means that the keyway lengths between each end are different.

[0055] At the same time, start the two motors 6 to drive the conveying slider 8 to move until the two mating key shafts 9 cannot move. Then, determine whether the keyway lengths between one end are the same by whether a sound can be heard on both sides of the spline shaft 5. When the sound can be heard on both sides, record whether there is a difference in the time when the sound is heard on both sides. If there is an obvious difference, it means that although the length of each keyway at each end is the same, the keyway lengths between the two ends are different.

[0056] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and improvements. These changes and improvements fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A spline shaft detection device, comprising a base plate (1), characterized in that: A placement ring (3) is symmetrically arranged directly above the base plate (1), and the inner walls of the two placement rings (3) are slidably connected with a locking ring (4), and a spline shaft (5) is placed between the outer walls of the two placement rings (3), and the locking ring (4) fixes the position of the spline shaft (5) after placement through a sliding relationship with the placement ring (3), and the spline shaft (5) is composed of a main shaft and key shafts of the same length at both ends, and the outer walls of the key slots at both ends of the spline shaft (5) are slidably connected with a fitting key shaft (9), and the bottoms of the two fitting key shafts (9) are fixedly connected with a conveying slider (8), and a driving component is arranged on one side of the conveying slider (8), and the driving component is used to drive the two conveying sliders (8) to move closer to or away from each other, and an extrusion component is arranged on one side of the two fitting key shafts (9), and an impact component is arranged on one side of the extrusion component for detecting whether the lengths of each key slot at one end are consistent; The extrusion assembly comprises two groups of plug-in rods (11), each group of multiple plug-in rods (11) are respectively plugged into the raised inner wall of the key shaft (9), one end of each plug-in rod (11) is fixedly connected to a conical block (12), the other end of each plug-in rod (11) is fixedly connected to a connecting tube (13), one end of each connecting tube (13) is fixedly connected to an extrusion block (14), and a deformation assembly is provided on one side of the extrusion block (14), and the deformation assembly is used to detect whether the length of each key slot at one end is consistent; The outer wall of each of the plug-in rods (11) is provided with a return spring (10), one end of the return spring (10) is fixedly connected to one side of the conical block (12), and the other end of the return spring (10) is fixedly connected to one side of the fitting key shaft (9); The deformation assembly comprises a plurality of fixing seats (16), the inner wall of each fixing seat (16) being provided with a slide groove (18), the inner wall of each slide groove (18) being slidably connected with an I-shaped block (19), and each I-shaped block (19) being respectively fitted with one side of each extrusion block (14).

2. A spline shaft detection device according to claim 1, characterized in that: Both sides of each of the I-shaped blocks (19) are fixedly connected to an articulated seat (21), the inner wall of each of the articulated seats (21) is articulated to a double-end articulated block (22), and an arc-shaped deformation rod (23) is articulated between each two adjacent double-end articulated blocks (22).

3. A spline shaft detection device according to claim 2, characterized in that: A second return spring (20) is arranged inside each of the slide grooves (18), one end of the second return spring (20) is fixedly connected to one side of the I-shaped block (19), and the other end of the second return spring (20) is fixedly connected to one side of the slide groove (18).

4. A spline shaft detection device according to claim 3, characterized in that: The outer walls of the two fitting key shafts (9) are fixedly connected to a connecting rod 1 (15), the outer wall of the connecting rod 1 (15) is fixedly connected to the outer wall of one of the fixing seats (16), and a disc connecting block (17) is fixedly connected between the outer walls of the plurality of fixing seats (16).

5. A spline shaft detection device according to claim 4, characterized in that: The tops of the two connecting rods (15) are fixedly connected to fixing rods (26), the tops of the two fixing rods (26) are fixedly connected to gong drums (27), the outer walls of the two fixing rods (26) are fixedly connected to fixing connecting rods (28), the inner sides of the fixing connecting rods (28) are fixedly connected to hinged seats (29), and the inner wall of the hinged seats (29) is hinged to a hammer (31).

6. A spline shaft detection device according to claim 5, characterized in that: The impact assembly comprises a plurality of connecting frames (24), wherein the plurality of connecting frames (24) are respectively fixedly mounted on the outer walls of a plurality of connecting tubes (13), a push block (25) is fixedly connected to one side of each of the connecting frames (24), a connecting rod (30) is hingedly connected to the bottom of the second hinge seat (29), a circular block (32) is fixedly connected to one end of the second hinge seat (30), and the circular block (32) has the same mass as the hammer (31), and the force of the push blocks (25) at one end of the plurality of connecting frames (24) simultaneously impacting the circular block (32) causes the circular block (32) to be hingedly rotated.

7. A spline shaft detection device according to claim 6, characterized in that: The driving assembly comprises a fixed groove seat (2), wherein the fixed groove seat (2) is fixedly installed just above the base plate (1), and the inner wall of the fixed groove seat (2) is rotatably connected to two bidirectional threaded rods (7), and the outer walls of the two bidirectional threaded rods (7) are respectively threadedly connected to the inner walls of two conveying slide blocks (8), and a motor (6) is symmetrically fixedly installed on the top of the base plate (1), and the output shafts of the two motors (6) are respectively fixedly connected to one end of the two bidirectional threaded rods (7), and the two placement rings (3) are both fixedly installed just above the fixed groove seat (2).

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