Automatic detection device and detection process for connecting shaft assembly

Abstract

The invention relates to the technical field of connecting shaft detection, and discloses a connecting shaft assembly automatic detection device and technology, and the device comprises a pedestal, the pedestal is rotatably provided with a rotating disc, the rotating disc is fixedly provided with a plurality of positioning assemblies used for fixing a connecting shaft, each positioning assembly comprises a positioning column fixed on the rotating disc, and the positioning columns are fixed on the rotating disc. A supporting table is slidably arranged on the surface of the positioning column, an adjusting ring is rotatably arranged on the upper surface of the supporting table, a straightening plate is slidably arranged on the inner side of the adjusting ring, a first sliding rod is fixed to the surface of the straightening plate, and a first sliding groove allowing the first sliding rod to slide is formed in the surface of the adjusting ring; according to the technical scheme, before the connecting shaft is detected, the supporting table ascends, the adjusting ring rotates, the straightening plate can clamp the bottom of the connecting shaft, the bottom end of the connecting shaft is kept in a vertical state all the time, and therefore the detection accuracy is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of connecting shaft detection, and in particular to an automatic detection device and detection process for a connecting shaft assembly. Background Art

[0002] The connecting shaft assembly includes the connecting shaft and other structures on the connecting shaft. The connecting shaft assembly is connected to the motor through the connecting shaft to drive the other structures to rotate. After the connecting shaft assembly is produced, the connecting shaft assembly needs to be inspected and marked.

[0003] When inspecting the connecting shaft assembly, the connecting shaft needs to be positioned by a positioning sleeve. The positioning sleeve is a structure with an opening on one side. When the positioning sleeve positions the connecting shaft, the connecting shaft needs to use a large thrust to push the connecting shaft from the open side of the positioning sleeve into the interior of the positioning sleeve. Therefore, when the connecting shaft is pushed into the interior of the positioning sleeve, the connecting shaft may not be in a vertical state, so that the connecting shaft may be offset to one side, causing the connecting shaft to be in a tilted state, so that it cannot be guaranteed that the state of the connecting shaft is the same before each inspection, and thus the consistency of the inspection position cannot be guaranteed, thereby reducing the accuracy during inspection. Summary of the Invention

[0004] The present invention provides an automatic detection device and detection process for a connecting shaft assembly. After the connecting shaft is pushed into the interior of the positioning sleeve, the support platform is raised to rotate the adjustment ring. The rotation of the adjustment ring enables the straightening plate to clamp the bottom of the connecting shaft, so that the bottom end of the connecting shaft is always kept in a vertical state. This solves the problem mentioned in the above background technology that when the connecting shaft is pushed into the interior of the positioning sleeve, the connecting shaft may not be in a vertical state, so that the connecting shaft may shift to one side, causing the connecting shaft to be in a tilted state, thereby making it impossible to ensure that the state of the connecting shaft is the same before each detection, and furthermore, the consistency of the detection position cannot be guaranteed, thereby reducing the accuracy during detection.

[0005] The present invention provides the following technical solutions: an automatic detection device for a connecting shaft assembly, comprising a base, a turntable rotatably provided on the base, a plurality of positioning components for fixing the connecting shaft fixed on the turntable, an inspection station and a marking station provided on the upper surface of the base; the plurality of positioning components each comprise a positioning column fixed on the turntable, a support platform slidably provided on the surface of the positioning column, a positioning sleeve fixed on the top of the positioning column, an adjustment ring rotatably provided on the upper surface of the support platform, a straightening plate slidably provided on the inner side of the adjustment ring, a first sliding rod fixed on the surface of the straightening plate, a first sliding groove for the sliding of the first sliding rod provided on the surface of the adjustment ring, and the straightening plate straightens the end of the connecting shaft through the rotation of the adjustment ring.

[0006] As an optional solution of the automatic detection device of the connecting shaft assembly described in the present invention, a slide rail for the support platform to slide is fixed on the surface of the positioning column, a first lifting plate is fixed on the surface of the support platform, a second slide groove for the first lifting plate to slide is provided on the surface of the positioning column, a fixing ring is fixed on the lower surface of the base, and a driving component for driving the first lifting plate to rise and fall is provided between the positioning column and the fixing ring.

[0007] As an optional solution of the automatic detection device of the connecting shaft assembly described in the present invention, the driving component includes a first lifting rod fixed to the first lifting plate, the first lifting rod is slidably connected to the positioning column, the fixing ring is provided with a first annular groove for the first lifting rod to slide, the bottom end of the first lifting rod is fixed with a first limiting ball, the bottom of the first annular groove is provided with a first track groove for the first limiting ball to slide, and the first track groove includes a first horizontal part, a first ascending part, a first descending part, a second horizontal part and a second descending part which are connected in sequence.

[0008] As an optional solution of the automatic detection device of the connecting shaft assembly described in the present invention, the driving component includes a receiving groove opened inside the positioning column, an electric push rod is fixed inside the receiving groove, a push rod is fixed at the output end of the electric push rod, and the end of the push rod is fixed to the first lifting plate.

[0009] As an optional solution of the automatic detection device of the connecting shaft assembly described in the present invention, a first sliding protrusion is fixed to the end of the first sliding rod, and a guide groove for sliding the first sliding protrusion is provided on the inner wall of the first sliding groove. A second sliding rod is provided for sliding inside the support platform, and a tooth plate is fixed to the end of the second sliding rod. A tooth ring engaged with the tooth plate is fixed on the outer surface of the adjusting ring, and a third sliding groove is provided inside the positioning column. The second sliding rod drives the tooth plate to perform left and right reciprocating motion by sliding in the third sliding groove.

[0010] As an optional solution of the automatic detection device of the connecting shaft assembly described in the present invention, a second sliding protrusion is fixed to the end of the second sliding rod, and a second track groove for sliding the second sliding protrusion is opened on the inner wall of the second slide groove, and the second track groove includes a first vertical portion, a first inclined portion, a second vertical portion and a second inclined portion which are connected in sequence, a first limit plate is elastically provided between the connection between the first inclined portion and the second vertical portion, and a second limit plate is elastically provided between the connection between the second inclined portion and the first vertical portion.

[0011] As an optional solution of the automatic detection device of the connecting shaft assembly described in the present invention, a pull ring is slidably provided on the upper surface of the support platform, a pull rod is fixed on the surface of the pull ring, a fourth sliding groove for the pull rod to slide is opened on the surface of the positioning column, a second lifting plate is slidably provided in the fourth sliding groove, a limiting sleeve is fixed on the surface of the second lifting plate, and the pull rod passes through the limiting sleeve and is slidably connected to the limiting sleeve.

[0012] As an optional solution of the automatic detection device of the connecting shaft assembly described in the present invention, a second lifting rod is fixed to the lower surface of the second lifting plate, the second lifting rod is slidably connected to the positioning column, a second annular groove for the sliding of the second lifting rod is provided on the fixing ring, a second limiting ball is fixed to the bottom end of the second lifting rod, and a third track groove for the sliding of the second limiting ball is provided at the bottom of the second annular groove, and the third track groove includes a third horizontal portion, a second ascending portion, a third descending portion, a fourth horizontal portion and a fourth descending portion which are sequentially connected.

[0013] As an optional solution of the automatic detection device of the connecting shaft assembly described in the present invention, a third sliding protrusion is fixed to the end of the pull rod, and the inner wall of the fourth sliding groove is provided with a fourth track groove for the sliding of the third sliding protrusion, and the fourth track groove includes a third vertical portion and a third inclined portion that are connected to each other.

[0014] As an optional solution of the automatic detection device for the connecting shaft assembly of the present invention, a process for automatically detecting the connecting shaft assembly includes the following steps:

[0015] S1. Move the top end of the connecting shaft into the positioning sleeve and use the positioning sleeve to limit and fix the connecting shaft so that the bottom end of the connecting shaft is in an overhead state.

[0016] S2. By rotating the turntable, the support table moves upward, and the bottom end of the connecting shaft is inserted through the pull ring into the inner side of the straightening plate;

[0017] S3. The support table continues to move upward, so that the second slide bar slides horizontally relative to the support table, the second slide bar drives the gear plate to move, the gear plate drives the gear ring to rotate, and the gear ring rotates and drives the straightening plate to retract, and the connecting shaft is straightened. At the same time, when the support table continues to move upward, the pull ring moves upward, and the speed of the pull ring moving upward is greater than the speed of the support table moving upward. During the process of retracting the straightening plate, the pull ring moves horizontally, and the inner surface of the pull ring is used to pull the connecting shaft, so that the connecting shaft is more convenient to center and straighten;

[0018] S4. After the connecting shaft is straightened, the support table moves downward for a distance, and the straightening plate drives the clamped connecting shaft downward for a distance, so that the end of the connecting shaft contacts the surface of the positioning sleeve again, completing the position calibration of the connecting shaft;

[0019] S5. The turntable drives the calibrated connecting shaft to the inspection station to detect whether the connecting shaft is qualified. The connecting shaft that passes the inspection enters the marking station for marking. The connecting shaft that fails the inspection is rejected;

[0020] S6. After marking is completed, the marked connecting shaft is cut.

[0021] The present invention has the following beneficial effects:

[0022] 1. In the automatic detection device and detection process of the connecting shaft assembly, when the connecting shaft assembly is detected, the top end of the connecting shaft is first pushed into the positioning sleeve, and the positioning sleeve is used to limit and clamp the top end of the connecting shaft, and then the driving assembly drives the support platform to move upward, and the bottom end of the connecting shaft is inserted into the inner side of the adjusting ring. The gear ring is driven to rotate by the gear plate, and the gear ring drives the adjusting ring to rotate. The rotation of the adjusting ring drives the straightening plate to move, so that the straightening plate shrinks inward. During the shrinkage of the straightening plate, the straightening plate can push the bottom end of the connecting shaft to move toward the center position of the adjusting ring, thereby straightening the connecting shaft, so that each connecting shaft can maintain the same state during detection, thereby ensuring the consistency of the detection position, thereby increasing the accuracy during detection.

[0023] 2. In the automatic detection device and detection process of the connecting shaft assembly, when the turntable rotates, it will drive the second lifting rod to slide along the second annular groove, and the second lifting rod will drive the second limiting ball to slide along the third track groove, so that the second limiting ball can drive the second lifting rod to move upward, and the second lifting rod moves upward to drive the pull rod to move upward, and the pull rod moves upward to drive the pull ring to move upward, and the pull rod moves upward to drive the third sliding protrusion to slide along the third inclined portion of the fourth track groove, so that the third sliding protrusion drives the pull rod to move horizontally, and the pull rod drives the pull ring to move horizontally, so that the pull ring pushes the connecting shaft to move to the vertical position, thereby facilitating the straightening of the connecting shaft, reducing the force generated at the straightening plate, increasing the protection effect at the straightening plate, reducing the possibility of structural damage at the straightening plate, further improving the accuracy of straightening, and increasing the straightening effect.

[0024] 3. In the automatic detection device and detection process of the connecting shaft assembly, when the pull ring moves upward, the pull rod first drives the third sliding protrusion to slide along the third vertical groove of the fourth track groove, so that the pull ring moves to a position close to the middle of the connecting shaft. Then, when the pull ring continues to move upward, the pull rod drives the third sliding protrusion to slide along the third inclined portion of the fourth track groove. At this time, the pull ring moves horizontally in the middle position of the connecting shaft, so that the pull ring pushes the connecting shaft in the middle position of the connecting shaft, making it more labor-saving to push the connecting shaft to move and achieving a better straightening effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1It is a schematic diagram of the three-dimensional structure of the present invention.

[0026] Figure 2 It is a schematic diagram of the three-dimensional structure of the positioning component part of the present invention.

[0027] Figure 3 This is one of the structural cross-sectional views of the base and positioning component parts in the present invention.

[0028] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle.

[0029] Figure 5 It is a schematic diagram of the planar structure of the first track groove in the present invention.

[0030] Figure 6 It is a structural diagram of another technical solution of the driving component in the present invention.

[0031] Figure 7 It is a schematic structural diagram of the adjustment ring part in the present invention.

[0032] Figure 8 It is a structural cross-sectional view of the adjustment ring part in the present invention.

[0033] Figure 9 For the present invention Figure 8 Enlarged view of point B in the middle.

[0034] Figure 10 It is a structural schematic diagram of the second track groove part in the present invention.

[0035] Figure 11 For the present invention Figure 10 Enlarged view of point C in the middle.

[0036] Figure 12 This is the second structural cross-sectional view of the base and positioning component part of the present invention.

[0037] Figure 13 For the present invention Figure 12 Enlarged view of point D in the middle.

[0038] Figure 14 Schematic diagram of the planar structure of the third track groove in the present invention.

[0039] Figure 15 It is a structural schematic diagram of the positioning sleeve in the present invention.

[0040] In the figure: 1. base; 2. turntable; 3. positioning assembly; 4. inspection station; 5. marking station; 6. positioning column; 7. support table; 8. positioning sleeve; 9. adjusting ring; 10. straightening plate; 11. first slide bar; 12. first slide groove; 13. slide rail; 14. first lifting plate; 15. second slide groove; 16. fixing ring; 17. first lifting rod; 18. first annular slide groove; 19. first limiting ball; 20. first track groove; 201. first horizontal portion; 202. first ascending portion; 203. first descending portion; 204. second horizontal portion; 205. second descending portion; 21. accommodating groove; 22. electric push rod; 23. push rod; 24. first sliding protrusion; 25. guide groove; 26. second slide bar; 27. tooth plate; 28. tooth ring; 29. ​​third slide groove; 30. second sliding protrusion; 31. second track groove; 311, first vertical portion; 312, first inclined portion; 313, second vertical portion; 314, second inclined portion; 315, first limiting plate; 316, second limiting plate; 317, rotating groove; 318, rotating rod; 319, torsion spring; 3110, contact block; 3111, stopper; 32, pull ring; 33, pull rod; 34, fourth slide; 35, second lifting plate; 36, limiting sleeve; 37, second top Lifting rod; 38, second annular slide groove; 39, second limiting ball; 40, third track groove; 401, third horizontal portion; 402, second rising portion; 403, third descending portion; 404, fourth horizontal portion; 405, fourth descending portion; 41, third sliding protrusion; 42, fourth track groove; 421, third vertical portion; 422, third inclined portion; 43, servo motor; 44, limiting groove; 45, connecting shaft. DETAILED DESCRIPTION

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0042] For example 1, please refer to Figures 1-15, an automatic detection device for a connecting shaft assembly includes a base 1, a turntable 2 is rotatably provided on the base 1, and several groups of positioning components 3 for fixing the connecting shaft 45 are fixed on the turntable 2, and an inspection station 4 and a marking station 5 are provided on the upper surface of the base 1; the several groups of positioning components 3 each include a positioning column 6 fixed on the turntable 2, a support platform 7 is slidably provided on the surface of the positioning column 6, a positioning sleeve 8 is fixed on the top of the positioning column 6, an adjusting ring 9 is rotatably provided on the upper surface of the support platform 7, a straightening plate 10 is slidably provided on the inner side of the adjusting ring 9, a first slide rod 11 is fixed on the surface of the straightening plate 10, and a first slide groove 12 for sliding of the first slide rod 11 is opened on the surface of the adjusting ring 9, and the straightening plate 10 is rotated by the adjusting ring 9 to straighten the end of the connecting shaft 45;

[0043] A slide rail 13 for sliding the support platform 7 is fixed to the surface of the positioning column 6, a first lifting plate 14 is fixed to the surface of the support platform 7, a second slide groove 15 for sliding the first lifting plate 14 is opened on the surface of the positioning column 6, a fixing ring 16 is fixed to the lower surface of the base 1, and a driving component for driving the first lifting plate 14 to move up and down is provided between the positioning column 6 and the fixing ring 16;

[0044] The driving assembly includes a first lifting rod 17 fixed to the first lifting plate 14, the first lifting rod 17 is slidably connected to the positioning column 6, a first annular slide 18 is provided on the fixing ring 16 for the sliding of the first lifting rod 17, a first limiting ball 19 is fixed to the bottom end of the first lifting rod 17, and a first track groove 20 is provided at the bottom of the first annular slide 18 for the sliding of the first limiting ball 19, and the first track groove 20 includes a first horizontal portion 201, a first ascending portion 202, a first descending portion 203, a second horizontal portion 204 and a second descending portion 205 which are sequentially connected;

[0045] A first sliding protrusion 24 is fixed to the end of the first sliding rod 11, and a guide groove 25 for sliding the first sliding protrusion 24 is provided on the inner wall of the first sliding groove 12. A second sliding rod 26 is provided for sliding inside the support platform 7. A toothed plate 27 is fixed to the end of the second sliding rod 26. A toothed ring 28 meshing with the toothed plate 27 is fixed to the outer surface of the adjusting ring 9. A third sliding groove 29 is provided inside the positioning column 6. The second sliding rod 26 drives the toothed plate 27 to reciprocate left and right by sliding in the third sliding groove 29.

[0046] A second sliding protrusion 30 is fixed to the end of the second sliding rod 26, and a second track groove 31 for the second sliding protrusion 30 to slide is opened on the inner wall of the second sliding groove 15. The second track groove 31 includes a first vertical portion 311, a first inclined portion 312, a second vertical portion 313 and a second inclined portion 314 which are connected in sequence. A first limiting plate 315 is elastically provided between the connection of the first inclined portion 312 and the second vertical portion 313, and a second limiting plate 316 is elastically provided between the connection of the second inclined portion 314 and the first vertical portion 311.

[0047] In this technical solution, the detection station 4 and the marking station 5 are existing technologies, not the innovation of this application, and will not be described in detail. When inspecting the connecting shaft 45, first move the top end of the connecting shaft 45 to the positioning sleeve 8 so that the positioning sleeve 8 clamps the top end of the connecting shaft 45. At this time, the bottom end of the connecting shaft 45 is in an overhead state. A servo motor 43 is fixed to the bottom of the base 1. The output end of the servo motor 43 is fixedly connected to the turntable 2. The turntable 2 is driven to rotate by the servo motor 43, and the turntable 2 drives several groups of positioning components 3 to rotate. When the turntable 2 rotates, the first lifting rod 17 is driven to slide along the first annular groove 18, and the first lifting rod 17 drives the first limiting ball 19 to slide along the first track groove 20. When the first limiting ball 19 slides along the first rising portion 202, the first limiting ball 19 drives the first lifting rod 17 to move upward, and the first lifting rod 17 drives the first lifting plate 14 to move upward, and the first lifting plate 14 drives the support platform 7 to move upward, so that the bottom of the connecting shaft 45 is inserted into the inner side of the support platform 7, and the bottom end of the connecting shaft 45 is supported by the support platform 7;

[0048] The first lifting plate 14 moves upward, driving the second slide bar 26 to move upward, and the second slide bar 26 drives the second sliding protrusion 30 to slide along the second track groove 31. In the process of the bottom end of the connecting shaft 45 being inserted into the interior of the support platform 7, the second sliding protrusion 30 slides along the first vertical portion 311, and the relative position of the second slide bar 26 and the support platform 7 remains unchanged. When the first limiting ball 19 continues to slide along the first rising portion 202, the first lifting plate 14 drives the support platform 7 to continue to move upward. At this time, the support platform 7 drives the connecting shaft 45 to move upward, lifting the connecting shaft 45 a certain distance. In the process of the connecting shaft 45 being lifted, as shown in FIG. Figure 4 As shown, the second slide bar 26 slides upward along the first inclined portion 312, so that the second slide bar 26 moves rightward relative to the support platform 7, and the rightward movement of the second slide bar 26 drives the gear plate 27 to move rightward, and the rightward movement of the gear plate 27 drives the gear ring 28 to rotate, and the rotation of the gear ring 28 drives the adjusting ring 9 to rotate, and the rotation of the adjusting ring 9 causes the first slide bar 11 to slide along the first slide groove 12, and the first slide bar 11 drives the first sliding protrusion 24 to slide along the guide groove 25, so that the first slide bar 11 pushes the straightening plate 10 to retract inward, so that the four groups of straightening plates 10 straighten the bottom end of the connecting shaft 45, so that the bottom end of the connecting shaft 45 can be located at the center position of the adjusting ring 9 after each fixation;

[0049] After the connecting shaft 45 is straightened, the connecting shaft 45 is raised for a distance. At this time, the first limiting ball 19 rises to the highest point of the first rising portion 202. As the turntable 2 continues to rotate, the first limiting ball 19 slides along the first descending portion 203, so that the first limiting ball 19 drives the first lifting rod 17 to move downward, and the first lifting rod 17 drives the first lifting plate 14 and the support platform 7 to move downward for a distance. The support platform 7 moves downward for a distance, driving the second slide bar 26 to move downward for a distance. At this time, the second slide bar 26 drives the second sliding protrusion 30 to slide downward along the second vertical portion 313. The second slide bar 26 The relative position with the support platform 7 remains unchanged, so that the straightening plate 10 always clamps the bottom end of the connecting shaft 45, so that after the support platform 7 moves relatively for a distance, it can drive the connecting shaft 45 to move downward for a distance, and the distance moved downward by the connecting shaft 45 is the same as the distance it was previously lifted upward, so that the top of the connecting shaft 45 is restored to a state of contact with the upper surface of the positioning sleeve 8, completing the straightening work of the connecting shaft 45, and then the turntable 2 continues to rotate, and the first limit ball 19 slides along the second horizontal portion 204, so that the connecting shaft 45 passes through the detection station 4 for detection, and then passes through the marking station 5 for marking;

[0050] After the marking work is completed, the turntable 2 continues to rotate, the first limiting ball 19 slides along the second descending portion 205, the first limiting ball 19 drives the first lifting rod 17 to continue to move downward, the first lifting rod 17 drives the first lifting plate 14 and the support platform 7 to continue to move downward, when the support platform 7 continues to move downward, the support platform 7 drives the second slide bar 26 to move downward, the second slide bar 26 drives the second sliding protrusion 30 to slide downward along the second inclined portion 314, so that the second sliding protrusion 30 drives the second slide bar 2 6 moves to the left, causing the second slide bar 26 to move to the left relative to the support platform 7, the second slide bar 26 drives the tooth plate 27 to move to the left, the tooth plate 27 drives the gear ring 28 to reverse, the gear ring 28 drives the adjusting ring 9 to reverse, so that the straightening plate 10 is reset and no longer clamps the bottom end of the connecting shaft 45, so that when the support platform 7 moves downward, it no longer drives the connecting shaft 45 to move downward until the support platform 7 is reset, the bottom end of the connecting shaft 45 is removed from the upper surface of the support platform 7, and then the connecting shaft 45 is blanked;

[0051] In the present technical solution, a limiting groove 44 is provided on the upper surface of the support table 7, and the bottom of the straightening plate 10 is slidably arranged in the limiting groove 44, so that the straightening plate 10 can only slide horizontally along the limiting groove 44 and will not rotate with the adjusting ring 9. The first limiting plate 315 is provided, so that the second sliding protrusion 30 can only slide from the first inclined portion 312 to the second vertical portion 313, and cannot slide downward along the first inclined portion 312. The second limiting plate 316 is provided, so that the second sliding protrusion 30 can only slide from the second inclined portion 314 to the first vertical portion 311, and cannot slide upward along the second inclined portion 314. The structural principle is as follows: the structures and principles of the first limiting plate 315 and the second limiting plate 316 are the same. Taking the first limiting plate 315 as an example for explanation, a rotation groove 317 is provided on the inner wall of the positioning column 6, and a rotating rod 318 is fixed inside the rotating groove 317. The end of the first limiting plate 315 is rotatably set on the circumference of the rotating rod 318, and a torsion spring 319 is sleeved on the circumference of the rotating rod 318. The a end of the torsion spring 319 is fixed to the surface of the first limiting plate 315, and the b end of the torsion spring 319 is fixed to the rotating rod 318. An interference block 3110 is fixed on the surface of the first limiting plate 315, and a stop block 3111 is fixed on the inner wall of the rotating groove 317. Figure 10 and Figure 11 As shown, when the second sliding protrusion 30 slides upward along the first inclined portion 312, the second sliding protrusion 30 contacts the first limiting plate 315, prompting the first limiting plate 315 to rotate clockwise, while the torsion spring 319 stores force. When the second sliding protrusion 30 slides to the top of the first inclined portion 312, the first limiting plate 315 loses contact with the second sliding protrusion 30, and the torsion spring 319 releases force, causing the first limiting plate 315 to return to its original position. Figure 10 When the second sliding protrusion 30 moves downward, the first limiting plate 315 cannot press the second limiting plate 315 due to the limiting effect of the abutment block 3110 and the stop block 3111. Figure 11 The second sliding protrusion 30 can only move downward along the second vertical portion 313 and cannot move downward along the first inclined portion 312 .

[0052] Example 2: This example is another technical solution for the drive assembly. For details, please refer to Figures 1-15 The driving assembly includes a receiving groove 21 provided inside the positioning column 6, an electric push rod 22 is fixed inside the receiving groove 21, a push rod 23 is fixed to the output end of the electric push rod 22, and the end of the push rod 23 is fixed to the first lifting plate 14;

[0053] In this technical solution, when the turntable 2 rotates, the electric push rod 22 first pushes the push rod 23 upward for a distance, and the push rod 23 drives the first lifting plate 14 to move upward for a distance, completing the process of inserting the bottom end of the connecting shaft 45 into the inner side of the adjusting ring 9. Then the turntable 2 continues to rotate, and the electric push rod 22 pushes the push rod 23 upward for a distance again. At this time, it can drive the second slide bar 26 to move horizontally relative to the support platform 7, so that the tooth plate 27 drives the gear ring 28 to rotate, thereby completing the straightening of the bottom end of the connecting shaft 45 by the straightening plate 10.

[0054] In the third embodiment, when the straightening plate 10 straightens the connecting shaft 45, pressure is applied to the bottom end of the connecting shaft 45 to straighten the connecting shaft 45. During the straightening process, the straightening plate 10 needs to provide a larger force to make the connecting shaft 45 become a vertical state. Therefore, when the force provided by the straightening plate 10 is greater, the relative reaction force received by the straightening plate 10 is also greater, making it easy for the structural part that drives the straightening plate 10 to move to be damaged, thereby affecting the normal operation of the work. In response to this problem, this embodiment is an improvement made on the basis of the first or second embodiment. For details, please refer to Figures 1-15 A pull ring 32 is slidably provided on the upper surface of the support platform 7, a pull rod 33 is fixed to the surface of the pull ring 32, a fourth sliding groove 34 for the pull rod 33 to slide is opened on the surface of the positioning column 6, a second lifting plate 35 is slidably provided in the fourth sliding groove 34, a limiting sleeve 36 is fixed to the surface of the second lifting plate 35, the pull rod 33 passes through the limiting sleeve 36 and is slidably connected to the limiting sleeve 36;

[0055] A second lifting rod 37 is fixed to the lower surface of the second lifting plate 35, and the second lifting rod 37 is slidably connected to the positioning column 6. A second annular groove 38 is formed on the fixing ring 16 for the sliding of the second lifting rod 37. A second limiting ball 39 is fixed to the bottom end of the second lifting rod 37. A third track groove 40 is formed at the bottom of the second annular groove 38 for the sliding of the second limiting ball 39. The third track groove 40 includes a third horizontal portion 401, a second ascending portion 402, a third descending portion 403, a fourth horizontal portion 404 and a fourth descending portion 405 that are sequentially connected.

[0056] A third sliding protrusion 41 is fixed to the end of the pull rod 33 . The inner wall of the fourth sliding groove 34 defines a fourth track groove 42 for the third sliding protrusion 41 to slide. The fourth track groove 42 includes a third vertical portion 421 and a third inclined portion 422 that are connected to each other.

[0057] When the first limiting ball 19 slides along the first rising portion 202, the second limiting ball 39 slides along the second rising portion 402, and the second limiting ball 39 drives the second lifting rod 37 to move upward. The second lifting rod 37 drives the second lifting plate 35 to move upward, and the second lifting plate 35 drives the pull rod 33 to move upward. The pull rod 33 drives the pull ring 32 to move upward. The rising height of the second rising portion 402 is greater than the rising height of the first rising portion 202, so that when the bottom end of the connecting shaft 45 is fully inserted into the interior of the adjusting ring 9, the pull ring 32 has risen to a position close to half of the connecting shaft 45. At this time, the pull rod 33 drives the third sliding protrusion 41 from the third vertical groove 42 of the fourth track groove 42. The straight portion 421 slides to the third inclined portion 422, and then the second limiting ball 39 continues to slide along the second rising portion 402, so that the second lifting plate 35 continues to drive the pull rod 33 to move upward, and the pull rod 33 drives the third sliding protrusion 41 to slide along the third inclined portion 422, so that the third sliding protrusion 41 moves rightward, and the third sliding protrusion 41 drives the pull rod 33 to move rightward, and the pull rod 33 drives the pull ring 32 to move rightward, so that the inner ring of the pull ring 32 contacts the surface of the connecting shaft 45, and then when the straightening plate 10 is retracted inward to straighten the connecting shaft 45, the third sliding protrusion 41 continues to slide along the third inclined portion 422, so that the pull ring 32 continues to move rightward, so that the pull ring 32 pushes the inclined connecting shaft 45 in the vertical direction, thereby facilitating the straightening of the connecting shaft 45 and reducing the force between the straightening plate 10 and the bottom end of the connecting shaft 45;

[0058] In the present technical solution, by setting the rising height of the second rising part 402 to be greater than the rising height of the first rising part 202, when the bottom end of the connecting shaft 45 is fully inserted into the interior of the adjusting ring 9, the pull ring 32 has risen to a position close to the half of the connecting shaft 45, so that the pull ring 32 can push the connecting shaft 45 at a position close to the half of the connecting shaft 45. Pushing the connecting shaft 45 at a position close to the half of the connecting shaft 45 is more labor-saving and has a better straightening effect than pushing the connecting shaft 45 at the bottom of the connecting shaft 45.

[0059] Example 4: This example is an improvement made on the basis of Example 3. For details, please refer to Figures 1-15 , a connecting shaft assembly automatic detection process, comprising the following steps:

[0060] S1. The top of the connecting shaft 45 is moved to the positioning sleeve 8, and the connecting shaft 45 is fixed by the positioning sleeve 8 so that the bottom end of the connecting shaft 45 is first in an overhead state;

[0061] S2. By rotating the turntable 2, the support table 7 moves upward, and the bottom end of the connecting shaft 45 is inserted through the pull ring 32 into the inner side of the straightening plate 10;

[0062] S3. The support platform 7 continues to move upward, so that the second slide bar 26 slides horizontally relative to the support platform 7, and the second slide bar 26 drives the tooth plate 27 to move, and the tooth plate 27 drives the gear ring 28 to rotate. The gear ring 28 rotates and drives the straightening plate 10 to retract and straighten the connecting shaft 45. At the same time, when the support platform 7 continues to move upward, the pull ring 32 moves upward. The speed of the pull ring 32 moving upward is greater than the speed of the support platform 7 moving upward. During the process of retracting the straightening plate 10, the pull ring 32 moves horizontally, and the inner surface of the pull ring 32 is used to pull the connecting shaft 45, so that the connecting shaft 45 can be more conveniently centered and straightened.

[0063] S4. After the connecting shaft 45 is straightened, the support table 7 moves downward for a distance, and the straightening plate 10 drives the clamped connecting shaft 45 to move downward for a distance, so that the end of the connecting shaft 45 again contacts the surface of the positioning sleeve 8, completing the position calibration of the connecting shaft 45;

[0064] S5. The turntable 2 drives the connecting shaft 45 after calibration to rotate to the detection station 4, detecting whether the connecting shaft 45 is qualified, the connecting shaft 45 enters the marking station 5 for marking after passing the test, and the connecting shaft 45 that fails to meet the test is removed;

[0065] S6. After the marking is completed, the marked connecting shaft 45 is cut.

[0066] In the present technical solution, the connecting shaft 45 can be straightened before the connecting shaft 45 is inspected, so that the connecting shaft 45 is in a straightened state each time it passes through the inspection station 4, which is beneficial to improving the accuracy of the inspection; and in the straightening process, the straightening plate 10 is retracted and the pull ring 32 is pushed, so that the straightening of the connecting shaft 45 is more convenient and the straightening effect is better.

[0067] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0068] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. An automatic detection device for a connecting shaft assembly, comprising a base (1), a turntable (2) rotatably provided on the base (1), characterized in that: The turntable (2) is fixed with several groups of positioning components (3) for fixing the connecting shaft (45), and the upper surface of the base (1) is provided with a detection station (4) and a marking station (5); the several groups of positioning components (3) all include a positioning column (6) fixed on the turntable (2), the surface of the positioning column (6) is slidably provided with a support platform (7), the top of the positioning column (6) is fixed with a positioning sleeve (8), the upper surface of the support platform (7) is rotatably provided with an adjusting ring (9), the inner side of the adjusting ring (9) is slidably provided with a straightening plate (10), the surface of the straightening plate (10) is fixed with a first slide rod (11), the surface of the adjusting ring (9) is provided with a first slide groove (12) for the sliding of the first slide rod (11), and the straightening plate (10) is rotated by the adjusting ring (9) to straighten the end of the connecting shaft (45).

2. The automatic detection device for the connecting shaft assembly according to claim 1, characterized in that: The surface of the positioning column (6) is fixed with a slide rail (13) for the support platform (7) to slide, the surface of the support platform (7) is fixed with a first lifting plate (14), the surface of the positioning column (6) is provided with a second slide groove (15) for the first lifting plate (14) to slide, the lower surface of the base (1) is fixed with a fixing ring (16), and a driving component for driving the first lifting plate (14) to move up and down is provided between the positioning column (6) and the fixing ring (16).

3. The automatic detection device for the connecting shaft assembly according to claim 2, characterized in that: The driving assembly includes a first lifting rod (17) fixed to the first lifting plate (14), the first lifting rod (17) is slidably connected to the positioning column (6), a first annular sliding groove (18) for the first lifting rod (17) to slide is provided on the fixing ring (16), a first limiting ball (19) is fixed to the bottom end of the first lifting rod (17), and a first track groove (20) for the first limiting ball (19) to slide is provided at the bottom of the first annular sliding groove (18), and the first track groove (20) includes a first horizontal part (201), a first rising part (202), a first descending part (203), a second horizontal part (204) and a second descending part (205) which are connected in sequence.

4. The automatic detection device for the connecting shaft assembly according to claim 2, characterized in that: The driving assembly comprises a receiving groove (21) provided inside the positioning column (6), an electric push rod (22) is fixed inside the receiving groove (21), a push rod (23) is fixed to the output end of the electric push rod (22), and the end of the push rod (23) is fixed to the first lifting plate (14).

5. The automatic detection device for connecting shaft assembly according to claim 1, characterized in that: A first sliding protrusion (24) is fixed to the end of the first sliding rod (11), a guide groove (25) for the first sliding protrusion (24) to slide is provided on the inner wall of the first sliding groove (12), a second sliding rod (26) is provided for sliding inside the support platform (7), a toothed plate (27) is fixed to the end of the second sliding rod (26), a toothed ring (28) meshing with the toothed plate (27) is fixed to the outer surface of the adjusting ring (9), a third sliding groove (29) is provided inside the positioning column (6), and the second sliding rod (26) drives the toothed plate (27) to perform left and right reciprocating motion by sliding in the third sliding groove (29).

6. The automatic detection device for the connecting shaft assembly according to claim 5, characterized in that: A second sliding protrusion (30) is fixed to the end of the second sliding rod (26), and a second track groove (31) for the second sliding protrusion (30) to slide is provided on the inner wall of the third sliding groove (29), and the second track groove (31) includes a first vertical portion (311), a first inclined portion (312), a second vertical portion (313) and a second inclined portion (314) which are connected in sequence, and a first limiting plate (315) is elastically provided between the connection of the first inclined portion (312) and the second vertical portion (313), and a second limiting plate (316) is elastically provided between the connection of the second inclined portion (314) and the first vertical portion (311).

7. The automatic detection device for the connecting shaft assembly according to claim 2, characterized in that: A pull ring (32) is slidably provided on the upper surface of the support platform (7), a pull rod (33) is fixed on the surface of the pull ring (32), a fourth sliding groove (34) for the pull rod (33) to slide is provided on the surface of the positioning column (6), a second lifting plate (35) is slidably provided in the fourth sliding groove (34), a limiting sleeve (36) is fixed on the surface of the second lifting plate (35), and the pull rod (33) passes through the limiting sleeve (36) and is slidably connected to the limiting sleeve (36).

8. The automatic detection device for the connecting shaft assembly according to claim 7, characterized in that: A second lifting rod (37) is fixed on the lower surface of the second lifting plate (35), and the second lifting rod (37) is slidably connected to the positioning column (6). A second annular sliding groove (38) is provided on the fixing ring (16) for the second lifting rod (37) to slide. A second limiting ball (39) is fixed to the bottom end of the second lifting rod (37), and a third track groove (40) is provided at the bottom of the second annular sliding groove (38) for the second limiting ball (39) to slide. The third track groove (40) includes a third horizontal part (401), a second rising part (402), a third descending part (403), a fourth horizontal part (404) and a fourth descending part (405) which are connected in sequence.

9. The automatic detection device for the connecting shaft assembly according to claim 8, characterized in that: A third sliding protrusion (41) is fixed to the end of the pull rod (33), and the inner wall of the fourth sliding groove (34) is provided with a fourth track groove (42) for the third sliding protrusion (41) to slide, and the fourth track groove (42) includes a third vertical portion (421) and a third inclined portion (422) that are connected to each other.

10. A connecting shaft assembly automatic detection process, characterized by: The automatic detection device for the connecting shaft assembly according to any one of claims 1 to 9 comprises the following steps: S1. Move the top end of the connecting shaft (45) into the positioning sleeve (8), and fix the connecting shaft (45) by the positioning sleeve (8), so that the bottom end of the connecting shaft (45) is first in an overhead state; S2. By rotating the turntable (2), the support table (7) moves upward, and the bottom end of the connecting shaft (45) is inserted through the pull ring (32) into the inner side of the straightening plate (10); S3. The support platform (7) continues to move upward, so that the second slide bar (26) slides horizontally relative to the support platform (7), the second slide bar (26) drives the tooth plate (27) to move, the tooth plate (27) drives the gear ring (28) to rotate, and the gear ring (28) rotates and drives the straightening plate (10) to be retracted, and the connecting shaft (45) is straightened. At the same time, when the support platform (7) continues to move upward, the pull ring (32) moves upward, and the speed of the pull ring (32) moving upward is greater than the speed of the support platform (7) moving upward. In the process of the straightening plate (10) being retracted, the pull ring (32) moves horizontally, and the inner surface of the pull ring (32) is used to pull the connecting shaft (45), so that the connecting shaft (45) can be more conveniently centered and straightened; S4. After the connecting shaft (45) is straightened, the support table (7) moves downward for a distance, and the straightening plate (10) drives the clamped connecting shaft (45) to move downward for a distance, so that the end of the connecting shaft (45) contacts the surface of the positioning sleeve (8) again, completing the position calibration of the connecting shaft (45); S5. The turntable (2) drives the calibrated connecting shaft (45) to rotate to the detection station (4), detects whether the connecting shaft (45) is qualified, and the connecting shaft (45) enters the marking station (5) for marking after the qualified detection, and the unqualified connecting shaft (45) is removed; S6. After the marking is completed, the marked connecting shaft (45) is cut.

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