Spline shaft yoke phase special-purpose testing fixture

Abstract

The utility model discloses a spline shaft yoke phase position special-purpose testing fixture comprising a pedestal, a supporting seat fixed on the pedestal, an accommodating groove arranged on the supporting seat and used for clamping and placing a spline shaft yoke, a locking bolt in threaded connection with the top of the accommodating groove, a fixed seat fixed on the pedestal, and a screw rod rotatably installed on the fixed seat through a bearing. A motor is fixedly connected to the fixing base through a limiting rod, a lead screw is installed at the output end of the motor and is in threaded connection with an adjusting block, the limiting rod is sleeved with the adjusting block, connecting frames are fixedly connected to the two ends of the adjusting block respectively, a rectangular frame is fixed to the bottoms of the connecting frames, and an adjusting lead screw is rotationally connected into the rectangular frame through a bearing. The spline shaft yoke phase special-purpose detection tool relates to the transmission shaft detection technology field, the spline shaft yoke phase special-purpose detection tool is reasonable in structure design, convenient in spline phase measurement operation, high in measurement accuracy, and can effectively control spline shaft yoke production quality.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission shaft detection, in particular to a special detection tool for a spline shaft fork phase. Background Art

[0002] With the improvement of people's economic living standards and the rapid development of the automobile industry, the demand for automobile drive shafts has increased significantly. According to the statistics of the Automobile Industry Association, the demand for spline shaft parts for automobiles in my country reached 550 million pieces in 2011. The drive shaft spline fork is an important part of the automobile drive shaft assembly. Under working conditions, it must not only complete accurate meshing action, but also repeatedly transmit alternating loads. It is one of the key components in the drive shaft, and the phase size of its spline teeth and ear holes directly affects the accuracy of the dynamic balance of the drive shaft assembly.

[0003] Traditionally, the processing of transmission shaft spline forks is mostly carried out by ordinary single-machine equipment. During the product processing, the equipment cannot guarantee the phase between the spline teeth and the ear holes. Therefore, after the spline fork is milled, it is necessary to detect the phase between the spline teeth and the ear holes, that is, the angle between the center line of the spline teeth and the center line of the ear holes, that is, the spline phase. However, in daily production, the phase of the spline fork is only guaranteed by the scribing method. This method only relies on visual inspection to ensure the phase, and its error is large. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a special inspection tool for the phase of a spline shaft fork, which solves the existing problems.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a special phase inspection tool for a spline shaft fork, comprising a base, a supporting base is fixed on the base, a receiving groove is provided on the supporting base for clamping and placing the spline shaft fork, a locking bolt is threadedly connected to the top of the receiving groove, a fixing base is fixed on the base, a screw rod is rotatably installed on the fixing base through a bearing, a motor is fixedly connected to the fixing base through a limit rod, the screw rod is installed at the output end of the motor, an adjusting block is threadedly connected on the screw rod, the adjusting block is sleeved on the limit rod, two ends of the adjusting block are respectively fixedly connected to a connecting frame, a rectangular frame is fixed at the bottom of the connecting frame, an adjusting screw rod is rotatably connected in the rectangular frame through a bearing, a first threaded sleeve is threadedly connected to the adjusting screw rod, pointers are fixed at both ends of the first threaded sleeve, a scale is engraved on the front of the rectangular frame, a second threaded sleeve is threadedly connected to the adjusting screw rod, and limit rods are fixed at both ends of the second threaded sleeve.

[0006] Preferably, the inner dimensions of the receiving groove are matched with the outer dimensions of the spline shaft fork.

[0007] Preferably, the limiting rods are symmetrically distributed on both sides of the screw rod, the adjusting block is provided with threaded holes and limiting holes, the threaded holes are threadedly connected to the screw rod, and the limiting holes are movably sleeved on the limiting rods.

[0008] Preferably, a limiting groove for the pointer to move up and down is provided on the rectangular frame.

[0009] Preferably, a limiting groove for the limiting rod to move up and down is provided on the rectangular frame.

[0010] Preferably, the bottom end of the adjusting screw rod is rotatably connected to the rectangular frame via a bearing, and a rotating handle is fixed to the top end.

[0011] Beneficial Effects

[0012] The utility model provides a special inspection tool for the phase of a spline shaft fork. Compared with the prior art, it has the following beneficial effects:

[0013] The special inspection tool for the phase of a spline shaft fork first places the spline shaft fork horizontally and clamps it on the inner side of a storage groove, and then locks and fixes the spline shaft fork by tightening the locking bolt. Then, the motor is started to drive the screw rod to rotate, drive the adjustment block to move downward, drive the bottom rectangular frame of the connecting frames on both sides to move downward to above the spline shaft fork, manually rotate the adjustment screw rod, and use the first threaded sleeve, the second threaded sleeve and the adjustment screw rod to threadably connect to drive the pointer and the limit rod to move downward synchronously, so that the limit rod is tightly attached to the top surface of the spline shaft fork, and cooperate with the pointer and the scale to measure the height of the top surface at both ends of the spline shaft fork, so as to measure the inclination of the top surface of the spline shaft fork, which is the inclination of the keyway center line of the spline toothed disk. Therefore, by measuring the height difference at both ends of the top surface on both sides of the spline shaft fork, the angle of the offset between the key tooth center line and the ear hole center line, that is, the spline phase, is quickly calculated, and the production quality of the spline shaft fork is controlled. The structural design is reasonable, the measurement operation is convenient, and the measurement accuracy is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the local structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the regulating block of the utility model.

[0017] In the figure: 1. base; 2. support base; 3. storage groove; 4. spline shaft fork; 5. locking bolt; 6. fixing base; 7. screw rod; 8. limit rod; 9. motor; 10. adjustment block; 101. threaded hole; 102. limit hole; 11. connecting frame; 12. rectangular frame; 13. adjustment screw rod; 14. first threaded sleeve; 15. pointer; 16. scale; 17. second threaded sleeve; 18. limit rod. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-3 , the utility model provides two technical solutions:

[0020] Embodiment 1:

[0021] A special inspection tool for the phase of a spline shaft fork comprises a base 1, a support base 2 is fixed on the base 1, a storage groove 3 is provided on the support base 2 for clamping and placing a spline shaft fork 4, a locking bolt 5 is threadedly connected to the top of the storage groove 3, a fixing base 6 is fixed on the base 1, a screw rod 7 is rotatably installed on the fixing base 6 through a bearing, a motor 9 is fixedly connected to the fixing base 6 through a limit rod 8, the screw rod 7 is installed at the output end of the motor 9, an adjusting block 10 is threadedly connected to the screw rod 7, the adjusting block 10 is sleeved on the limit rod 8, two ends of the adjusting block 10 are respectively fixedly connected to a connecting frame 11, a rectangular frame 12 is fixed to the bottom of the connecting frame 11, an adjusting screw rod 13 is rotatably connected in the rectangular frame 12 through a bearing, a first threaded sleeve 14 is threadedly connected to the adjusting screw rod 13, pointers 15 are fixed at both ends of the first threaded sleeve 14, a scale 16 is engraved on the front of the rectangular frame 12, a second threaded sleeve 17 is threadedly connected to the adjusting screw rod 13, and limit rods 18 are fixed at both ends of the second threaded sleeve 17.

[0022] Embodiment 2:

[0023] A special inspection tool for the phase of a spline shaft fork comprises a base 1, a support base 2 is fixed on the base 1, a storage groove 3 is provided on the support base 2 for clamping and placing a spline shaft fork 4, a locking bolt 5 is threadedly connected to the top of the storage groove 3, a fixing base 6 is fixed on the base 1, a screw rod 7 is rotatably installed on the fixing base 6 through a bearing, a motor 9 is fixedly connected to the fixing base 6 through a limit rod 8, the screw rod 7 is installed at the output end of the motor 9, an adjusting block 10 is threadedly connected to the screw rod 7, the adjusting block 10 is sleeved on the limit rod 8, two ends of the adjusting block 10 are respectively fixedly connected to a connecting frame 11, a rectangular frame 12 is fixed to the bottom of the connecting frame 11, an adjusting screw rod 13 is rotatably connected in the rectangular frame 12 through a bearing, a first threaded sleeve 14 is threadedly connected to the adjusting screw rod 13, pointers 15 are fixed at both ends of the first threaded sleeve 14, a scale 16 is engraved on the front of the rectangular frame 12, a second threaded sleeve 17 is threadedly connected to the adjusting screw rod 13, and limit rods 18 are fixed at both ends of the second threaded sleeve 17.

[0024] In this embodiment, the inner size of the receiving groove 3 is matched with the outer size of the spline shaft fork 4, and the spline shaft fork 4 is clamped and installed on the inner side of the receiving groove 3; the limiting rods 8 are symmetrically distributed on both sides of the screw rod 7, and the adjusting block 10 is provided with a threaded hole 101 and a limiting hole 102, the threaded hole 101 is threadedly connected with the screw rod 7, and the limiting hole 102 is movably sleeved on the limiting rod 8, the motor 9 is started to drive the screw rod 7 to rotate, and the threaded hole 101 is threadedly connected with the screw rod 7 to drive the adjusting block 10 to move up and down. The limit hole 102 is movably sleeved on the limit rod 8 for limiting the position of the adjustment block 10 when it moves up and down; a limit groove for the pointer 15 to move up and down is provided on the rectangular frame 12, so that the pointer 15 can move up and down smoothly on the rectangular frame 12; a limit groove for the limit rod 18 to move up and down is provided on the rectangular frame 12, so that the limit rod 18 can move up and down smoothly on the rectangular frame 12; the bottom end of the adjusting screw rod 13 is rotatably connected to the rectangular frame 12 through a bearing, and a turning handle is fixed on the top end to facilitate manual rotation of the adjusting screw rod 13.

[0025] When using this special inspection tool for the phase of a spline shaft fork, first, the spline shaft fork 4 is clamped on the inner side of the storage groove 3 and then locked and fixed by the locking bolt 5. Then, the motor 9 is started to drive the screw rod 7 to rotate and drive the adjusting block 10 to move downward, driving the bottom rectangular frame 12 of the connecting frames 11 on both sides to move downward to the top of the spline shaft fork 4, and manually rotating the adjusting screw rod 13, and using the first threaded sleeve 14, the second threaded sleeve 17 and the adjusting screw rod 13 to threadably connect and drive the pointer 15 and the limit rod 18 to move downward synchronously, so that the limit rod 18 is closely attached to the top surface of the spline shaft fork 4, and cooperates with the pointer 15 and the scale 16 to measure the height of the top surface of the two ends of the spline shaft fork 4, so as to measure the inclination of the top surface of the spline shaft fork 4, which is the inclination of the keyway centerline of the spline toothed disk. Therefore, by measuring the height difference at both ends of the top surface of the gauge block, the angle of the offset between the key tooth centerline and the ear hole centerline, that is, the spline phase, is quickly calculated, and the production quality of the spline shaft fork is controlled. The structural design is reasonable, the measurement operation is convenient, and the measurement accuracy is high.

[0026] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spline shaft fork phase special inspection tool, comprising a base (1), characterized in that: A support seat (2) is fixed on the base (1), a receiving groove (3) is provided on the support seat (2) for clamping and placing a spline shaft fork (4), a locking bolt (5) is threadedly connected to the top of the receiving groove (3), a fixing seat (6) is fixed on the base (1), a screw rod (7) is rotatably mounted on the fixing seat (6) through a bearing, a motor (9) is fixedly connected to the fixing seat (6) through a limit rod (8), the screw rod (7) is mounted on the output end of the motor (9), an adjustment block (10) is threadedly connected to the screw rod (7), and the adjustment block (10) is sleeved on the limit rod (8), the two ends of the adjusting block (10) are respectively fixedly connected to a connecting frame (11), a rectangular frame (12) is fixed at the bottom of the connecting frame (11), an adjusting screw rod (13) is rotatably connected in the rectangular frame (12) through a bearing, a first threaded sleeve (14) is threadedly connected to the adjusting screw rod (13), pointers (15) are fixed at both ends of the first threaded sleeve (14), a scale (16) is engraved on the front of the rectangular frame (12), a second threaded sleeve (17) is threadedly connected to the adjusting screw rod (13), and limit rods (18) are fixed at both ends of the second threaded sleeve (17).

2. A spline shaft fork phase special inspection fixture according to claim 1, characterized in that: The inner dimensions of the receiving groove (3) are compatible with the outer dimensions of the spline shaft fork (4).

3. A spline shaft fork phase special inspection tool according to claim 1, characterized in that: The limiting rods (8) are symmetrically distributed on both sides of the screw rod (7); the adjusting block (10) is provided with a threaded hole (101) and a limiting hole (102); the threaded hole (101) is threadedly connected to the screw rod (7); and the limiting hole (102) is movably sleeved on the limiting rod (8).

4. A spline shaft fork phase special inspection fixture according to claim 1, characterized in that: The rectangular frame (12) is provided with a limiting groove for the pointer (15) to move up and down.

5. The spline shaft fork phase special inspection fixture according to claim 1 is characterized by: The rectangular frame (12) is provided with a limiting groove for the limiting rod (18) to move up and down.

6. The spline shaft fork phase special inspection tool according to claim 1, characterized in that: The bottom end of the adjusting screw rod (13) is rotatably connected to the rectangular frame (12) via a bearing, and a rotating handle is fixed to the top end.

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