Chamfering equipment for intermediate shaft of automobile driving shaft assembly

Abstract

The invention relates to the technical field of driving shaft machining, and discloses chamfering equipment for an intermediate shaft of an automobile driving shaft assembly. The device comprises a base, a conveying cylinder mechanism capable of conveying the intermediate shaft and driving the intermediate shaft to rotate in the circumferential direction is arranged on the base, a chamfering disc mechanism used for chamfering the two ends of the intermediate shaft is arranged on the conveying cylinder mechanism, and the conveying cylinder mechanism comprises an outer cylinder fixedly connected with the base; a rotatable conveying roller is arranged in the outer cylinder, the chamfering disc mechanism comprises a shaft rod which is rotationally arranged in the conveying roller and can drive the conveying roller to rotate at differential speed, and the two ends of the shaft rod are each provided with an end rod capable of being telescopically reset. According to the intermediate shaft chamfering device, a novel intermediate shaft chamfering mode is achieved by arranging the conveying cylinder mechanism and the chamfering disc mechanism, so that a plurality of intermediate shafts can be chamfered continuously and simultaneously, and the chamfering efficiency of the intermediate shafts is improved.

Description

Technical Field

[0001] The invention relates to the technical field of drive shaft processing, in particular to an intermediate shaft chamfering device for an automobile drive shaft assembly. Background Art

[0002] The automobile drive shaft assembly, also known as the transmission shaft, is an important part of the automobile transmission system. It transmits the output power of the transmission to the wheels, thereby driving the car forward. It is mainly composed of an intermediate shaft, a universal joint, a dust cover and other parts. During the processing of the intermediate shaft of the drive shaft assembly, milling, quenching, chamfering and other processes are required. Among them, chamfering the ends of the intermediate shaft can not only remove burrs, but also reduce stress concentration and strengthen the strength of the spline end of the transmission shaft.

[0003] When current chamfering equipment chamfers the spline end of an intermediate shaft, the intermediate shaft is generally first transported or transferred to the chamfering area, and then the intermediate shaft is fixed. Finally, two rotating grinding discs (generally funnel-shaped) are clamped close to the two ends of the intermediate shaft to perform grinding-type chamfering on both ends of the shaft.

[0004] However, this grinding method requires the steps of moving in, fixing, chamfering, releasing, and moving out of the intermediate shaft in sequence, and only one intermediate shaft can be chamfered at a time. When performing batch chamfering, the chamfering efficiency of the intermediate shaft is limited. Therefore, it is necessary to propose a new chamfering device for the intermediate shaft of an automobile drive shaft assembly. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a device for chamfering an intermediate shaft of an automobile drive shaft assembly.

[0006] The present invention is implemented by the following technical scheme: a base, wherein the base is provided with a conveying cylinder mechanism which can convey the intermediate shaft and drive the intermediate shaft to rotate circumferentially, the conveying cylinder mechanism is provided with a chamfering disk mechanism for chamfering both ends of the intermediate shaft, the conveying cylinder mechanism includes an outer cylinder fixedly connected to the base, a rotatable conveying roller is provided in the outer cylinder, the chamfering disk mechanism includes an axle rod rotatably provided in the conveying roller and can drive the conveying roller to rotate differentially, both ends of the axle rod are provided with telescopic and reset end rods, the two end rods are provided with a turntable which can rotate synchronously with the end rods and move synchronously telescopically, and the turntable is fixedly provided with a grinding ring for chamfering the intermediate shaft.

[0007] As a further improvement of the above scheme, a feed hopper is provided at the top of the outer cylinder so that the intermediate shaft can enter the conveying cylinder mechanism in an orderly manner, and a discharge port is provided at the bottom of the outer cylinder. The lengths of the feed hopper and the discharge port are both greater than those of the outer cylinder.

[0008] As a further improvement of the above solution, arc-shaped openings are provided at both ends of the outer cylinder, so that both ends of the intermediate shaft can extend outside the conveying cylinder mechanism.

[0009] As a further improvement of the above solution, a motor for driving the conveying cylinder mechanism and the chamfering disk mechanism to rotate is fixedly mounted on the base, and the motor is drivingly connected to the shaft rod.

[0010] As a further improvement of the above scheme, a first gear is fixedly sleeved on the shaft rod, a double gear is rotatably installed on one end of the outer cylinder, and a second gear is fixedly sleeved on one end of the conveying roller, the first gear is meshed with the large gear on the double gear, and the second gear is meshed with the small gear on the double gear, so that when the shaft rod drives the chamfering disk mechanism to rotate through the end rod, it can also drive the conveying roller to rotate together, and the rotation speed of the conveying roller is lower than that of the chamfering disk mechanism.

[0011] As a further improvement of the above scheme, grooves are provided at both ends of the shaft rod, and the ends of the two end rods close to each other are respectively extended into the corresponding grooves and telescopically and slidably connected therewith, and a first spring is provided in the two grooves, and the two ends of the first spring are respectively abutted against the inner wall of the groove and one end of the end rod, so that the end rod can not only drive the chamfering disk mechanism to approach the conveying roller to chamfer and grind the intermediate shaft, but also realize resetting.

[0012] As a further improvement of the above scheme, a cam plate is fixedly installed at one end of the two end rods away from each other, and two support frames are fixedly installed on the base. A pair of rollers are provided on the two support frames, and the two pairs of rollers are respectively in contact with the corresponding cam plates, so that the chamfering plate mechanism can realize reciprocating displacement when rotating.

[0013] As a further improvement of the above scheme, the turntable is telescopically and slidably connected to the end rod, and a second spring is sleeved on the end rod. The two ends of the second spring are respectively against the turntable and the cam plate, so that the cam plate can achieve adaptive buffering when the turntable and the grinding ring are driven by the end rod to contact the intermediate shaft.

[0014] As a further improvement of the above scheme, a limiting mechanism is arranged on the turntable, and the limiting mechanism includes a plurality of sliding rods distributed in a ring and telescopically mounted on the turntable, and the two ends of the plurality of sliding rods are respectively fixedly mounted with the same limiting ring and the same rotating ring, and the plurality of sliding rods are each sleeved with a third spring, and the two ends of the plurality of third springs are respectively against the turntable and the rotating ring, thereby ensuring the stability of the intermediate shaft without affecting the rotation and transfer of the intermediate shaft.

[0015] Compared with the prior art, the present invention has the following beneficial effects: A conveying cylinder mechanism composed of an outer cylinder and a conveying roller is matched with a chamfering disk mechanism composed of a rotating disk, a grinding ring and other structures to form a new intermediate shaft chamfering device. Compared with the existing chamfering equipment, it can realize the uninterrupted conveyance of the intermediate shaft while chamfering both ends thereof, and can also realize the uninterrupted synchronous chamfering of multiple intermediate shafts. Compared with only chamfering one intermediate shaft at a time and requiring multiple steps to be performed in sequence during the chamfering process, it can greatly improve the chamfering efficiency of the intermediate shaft; By setting an axial sliding connection between the rotating disk and the end rod, and arranging a second spring between the cam plate and the rotating disk, when the end rod is driven by the cam plate to drive the rotating disk and the grinding ring to move and contact the end of the intermediate shaft, the grinding ring and the intermediate shaft can achieve adaptive buffering through the second spring, so that the grinding ring can contact the intermediate shaft in a soft contact manner to protect both, and at the same time, it is prevented that the grinding ring directly presses the intermediate shaft to the point where the intermediate shaft cannot rotate; The limiting mechanism of the chamfering disk mechanism is composed of multiple sliding rods, limiting rings, rotating rings and multiple third springs. The distance between the two rotating rings is slightly larger than the length of the intermediate shaft, so that after the intermediate shaft falls into the conveying tube mechanism, its two ends are respectively close to the two rotating rings. When the two chamfering disk mechanisms approach each other and start to chamfer the intermediate shaft, the two rotating rings can limit the intermediate shaft to avoid position displacement or tilt during circumferential rotation and transfer chamfering. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front-view overall display diagram of the intermediate shaft chamfering device of the automobile drive shaft assembly of the present invention; Figure 2 This is a rear-view overall display diagram of the intermediate shaft chamfering device of the automobile drive shaft assembly of the present invention; Figure 3 It is a planar cross-sectional illustration of the intermediate shaft chamfering device of the automobile drive shaft assembly of the present invention; Figure 4 for Figure 3 An enlarged view of part A in the middle; Figure 5 This is a disassembled display diagram of the conveying cylinder mechanism and the chamfering disk mechanism; Figure 6 This is a disassembled display diagram of the conveying cylinder mechanism; Figure 7 It is a disassembled display diagram and a partial cross-sectional display diagram of the chamfering plate mechanism; Figure 8 The disassembled display diagram of the turntable, grinding ring, cam plate and limiting mechanism; Fig. 9 It is a partial cross-sectional view showing the shaft rod, end rod and turntable; Fig.10This is a display diagram of the support frame and rollers; Fig.11 This is a first demonstration diagram of the intermediate shaft chamfering device of the automobile drive shaft assembly of the present invention; Fig.12 This is the second demonstration diagram of the intermediate shaft chamfering device of the automobile drive shaft assembly of the present invention.

[0017] Description of main symbols: 1. Base; 2. Outer cylinder; 3. Feed hopper; 4. Discharge port; 5. Conveyor roller; 6. Shaft; 7. Motor; 8. First gear; 9. Double gear; 10. Second gear; 11. End rod; 12. First spring; 13. Turntable; 14. Grinding ring; 15. Cam plate; 16. Second spring; 17. Bracket; 18. Roller; 19. Slide rod; 20. Limiting ring; 21. Rotating ring; 22. Third spring. DETAILED DESCRIPTION

[0018] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0019] Please combine Figures 1 to 12 The intermediate shaft chamfering device of the automobile drive shaft assembly comprises: a base 1, on which a conveying cylinder mechanism capable of conveying the intermediate shaft and driving the intermediate shaft to rotate in a circumferential direction is arranged, and a chamfering disk mechanism for chamfering both ends of the intermediate shaft is arranged on the conveying cylinder mechanism; The conveying cylinder mechanism includes an outer cylinder 2 fixedly connected to the base 1, and the outer cylinder 2 is composed of a cylinder body and semicircular end covers arranged at both ends of the cylinder body, so that the outer cylinder 2 is reserved with an arc-shaped opening, so that the two ends of the intermediate shaft can extend outside the conveying cylinder mechanism, thereby ensuring that the conveying cylinder mechanism can drive the intermediate shaft to rotate circumferentially and transfer counterclockwise along the arc-shaped opening area, and the two ends of the intermediate shaft can smoothly contact the grinding ring 14. A feed hopper 3 is arranged on the top of the outer cylinder 2, so that the intermediate shaft can enter the conveying cylinder mechanism in a regular manner. A discharge port 4 is arranged at the bottom of the outer cylinder 2, and the feed hopper 3 and The length of the discharge port 4 is greater than that of the outer cylinder 2, and the length of the entire outer cylinder 2 is shorter than the length specification of the intermediate shaft, while the inner diameter length and width of the feed hopper 3 and the discharge port 4 are slightly greater than the specification of the intermediate shaft. A rotatable conveying roller 5 is arranged inside the outer cylinder 2. The conveying roller 5 is hollowed out and can reduce its weight. In addition, the distance between the conveying roller 5 and the outer cylinder 2 is equal to the diameter of the intermediate shaft, and the outer side of the conveying roller 5 and the inner side of the outer cylinder 2 are wrapped and laid with a rubber layer, so as to increase the friction between the two and the intermediate shaft, so that the conveying roller 5 has enough friction to drive the intermediate shaft to rotate when transferring; The chamfering disk mechanism includes a shaft rod 6 which is rotatably arranged in the conveying roller 5 and can drive the conveying roller 5 to rotate differentially. A motor 7 for driving the conveying cylinder mechanism and the chamfering disk mechanism to rotate is fixedly installed on the base 1. Synchronous wheels are fixedly arranged on the output shaft of the motor 7 and the shaft rod 6, and the same synchronous belt is sleeved on the two synchronous wheels. Both ends of the shaft rod 6 are provided with retractable and reset end rods 11, and both end rods 11 are provided with a turntable 13 which can rotate synchronously with the end rod 11 and move synchronously telescopically. A grinding ring 14 for chamfering the intermediate shaft is fixedly arranged on the turntable 13. Both ends of the shaft rod 6 are provided with grooves, and the ends of the two end rods 11 close to each other are respectively extended into the corresponding grooves and are telescopically and slidably connected with them. First springs 12 are arranged in the two grooves, and the first The two ends of the spring 12 are respectively against the inner wall of the groove and one end of the end rod 11, so that the end rod 11 can not only drive the chamfering disk mechanism to approach the conveying roller 5 to chamfer and grind the intermediate shaft, but also can achieve reset. The ends of the two end rods 11 that are away from each other are fixedly installed with cam disks 15, and the cam disk 15 is provided with a plurality of positioning rods distributed in a ring shape, and the turntable 13 is provided with a plurality of through holes distributed in a ring shape. The plurality of positioning rods extend into the plurality of through holes and are slidably connected thereto, so as to ensure that the two can achieve stable synchronous rotation. Two abutments 17 are fixedly installed on the base 1, and a pair of rollers 18 are provided on the two abutments 17. The two pairs of rollers 18 are respectively in contact with the corresponding cam disks 15, so that the chamfering disk mechanism can achieve reciprocating displacement when rotating.

[0020] Through the above technical solution, compared with the existing chamfering equipment, it can realize uninterrupted transportation of the intermediate shaft while chamfering its two ends, and can also realize uninterrupted synchronous chamfering of multiple intermediate shafts. Compared with only chamfering one intermediate shaft at a time and the need to perform multiple steps in the chamfering process, the chamfering efficiency of the intermediate shaft can be greatly improved.

[0021] Please combine Figure 4 A first gear 8 is fixedly sleeved on the shaft 6, a double gear 9 is rotatably installed on one end of the outer cylinder 2, and a second gear 10 is fixedly sleeved on one end of the conveying roller 5. The first gear 8 is meshed with the large gear on the double gear 9, and the second gear 10 is meshed with the small gear on the double gear 9. In this way, when the shaft 6 drives the chamfering disk mechanism to rotate through the end rod 11, it can also drive the conveying roller 5 to rotate together, and the rotation speed of the conveying roller 5 is lower than that of the chamfering disk mechanism.

[0022] Through the above technical solution, the chamfering disk mechanism and the conveying drum mechanism can be driven simultaneously by a single driving device, and by reducing the rotation speed of the conveying roller 5, the transfer speed of the conveying drum mechanism to the intermediate shaft can be reduced, so that the intermediate shaft has sufficient time to perform chamfering processing.

[0023] Please combine Figure 4 and Figure 8 The turntable 13 is telescopically and slidably connected to the end rod 11. A second spring 16 is sleeved on the end rod 11. The two ends of the second spring 16 respectively abut against the turntable 13 and the cam plate 15, so that the cam plate 15 can achieve adaptive buffering when the turntable 13 and the grinding ring 14 are brought into contact with the intermediate shaft through the end rod 11.

[0024] Through the above technical solution, when the end rod 11 drives the turntable 13 and the grinding ring 14 to move and contact the end of the intermediate shaft under the drive of the cam plate 15, the grinding ring 14 and the intermediate shaft can achieve adaptive buffering through the second spring 16. On the one hand, the grinding ring 14 can contact the intermediate shaft in a soft contact manner to protect both of them, and at the same time, it also prevents the grinding ring 14 from directly pressing the intermediate shaft to the point where the intermediate shaft cannot rotate.

[0025] Please combine Figure 4 , Figure 7 and Figure 8 A limiting mechanism is provided on the turntable 13, and the limiting mechanism includes a plurality of slide bars 19 distributed in an annular shape and telescopically mounted on the turntable 13, and a same limiting ring 20 and a same rotating ring 21 are fixedly mounted at both ends of the plurality of slide bars 19, and a third spring 22 is sleeved on the plurality of slide bars 19, and the two ends of the plurality of third springs 22 are respectively against the turntable 13 and the rotating ring 21, so as to ensure the stability of the intermediate shaft without affecting the rotation and transfer of the intermediate shaft.

[0026] Through the above technical solution, after the intermediate shaft falls into the conveying cylinder mechanism, its two ends are respectively close to the two rotating rings 21, so that when the two chamfering disk mechanisms approach each other and start to chamfer the intermediate shaft, the two rotating rings 21 can limit the intermediate shaft to avoid position displacement or tilt during circumferential rotation and transfer chamfering.

[0027] The implementation principle of an intermediate shaft chamfering device for an automobile drive shaft assembly in the embodiment of the present application is as follows: When deployed, the intermediate shaft chamfering device can be placed at the end of the conveying device or used directly; When in use, the motor 7 drives the shaft 6 to rotate through two synchronous wheels and a synchronous belt, and the shaft 6 drives the two chamfering disk mechanisms to rotate through two end rods 11. At the same time, the shaft 6 also drives the double gear 9 to rotate through the first gear 8, and the double gear 9 drives the conveying roller 5 to rotate at a slower speed than the shaft 6 through the second gear 10. Then, the intermediate shaft to be chamfered is placed in the feed hopper 3, and the intermediate shaft falls into the outer cylinder 2 smoothly and regularly through the feed hopper 3. When the intermediate shaft is between the conveying roller 5 and the outer cylinder 2, it will realize circumferential rotation and transfer counterclockwise from top to bottom under the drive of the conveying roller 5; At the same time, the cam plate 15 is squeezed by the roller 18 and the support frame 17 as it rotates, thereby realizing frequent reciprocating movement, and thereby driving the chamfering plate mechanism to continuously move back and forth close to and away from the end of the intermediate shaft, until the rotating grinding ring 14 contacts and grinds the end edge of the rotating and transferred intermediate shaft, until the intermediate shaft is transferred to the discharge port 4 and automatically falls and is discharged, thereby completing the chamfering work on the end of the intermediate shaft.

[0028] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A chamfering device for the intermediate shaft of an automobile drive shaft assembly, characterized in that: include: A base (1), wherein the base (1) is provided with a conveying cylinder mechanism capable of conveying the intermediate shaft and driving the intermediate shaft to rotate in a circumferential direction, and the conveying cylinder mechanism is provided with a chamfering disk mechanism for chamfering two ends of the intermediate shaft; The conveying cylinder mechanism comprises an outer cylinder (2) fixedly connected to the base (1), and a rotatable conveying roller (5) is arranged inside the outer cylinder (2); The chamfering disk mechanism comprises a shaft (6) rotatably arranged in a conveying roller (5) and capable of driving the conveying roller (5) to rotate at a differential speed, both ends of the shaft (6) being provided with end rods (11) that can be retracted and reset, both end rods (11) being provided with a rotating disk (13) that can rotate synchronously with the end rods (11) and move synchronously with the end rods (11), and a grinding ring (14) for chamfering the intermediate shaft being fixedly arranged on the rotating disk (13).

2. The intermediate shaft chamfering device of the automobile drive shaft assembly according to claim 1, characterized in that: A feed hopper (3) is provided at the top of the outer cylinder (2), so that the intermediate shaft can enter the conveying cylinder mechanism in an orderly manner. A discharge port (4) is provided at the bottom of the outer cylinder (2). The lengths of the feed hopper (3) and the discharge port (4) are both greater than those of the outer cylinder (2).

3. The intermediate shaft chamfering device of the automobile drive shaft assembly according to claim 1, characterized in that: Both ends of the outer cylinder (2) are provided with arc-shaped openings, so that both ends of the intermediate shaft can extend outside the conveying cylinder mechanism.

4. The intermediate shaft chamfering device of the automobile drive shaft assembly according to claim 1, characterized in that: A motor (7) for driving the conveying cylinder mechanism and the chamfering disk mechanism to rotate is fixedly mounted on the base (1), and the motor (7) is drivingly connected to the shaft rod (6).

5. The intermediate shaft chamfering device of the automobile drive shaft assembly according to claim 1, characterized in that: A first gear (8) is fixedly sleeved on the shaft (6), a double gear (9) is rotatably mounted on one end of the outer cylinder (2), and a second gear (10) is fixedly sleeved on one end of the conveying roller (5), the first gear (8) meshes with a large gear on the double gear (9), and the second gear (10) meshes with a small gear on the double gear (9), so that when the shaft (6) drives the chamfering disk mechanism to rotate through the end rod (11), it can also drive the conveying roller (5) to rotate together, and the rotation speed of the conveying roller (5) is lower than that of the chamfering disk mechanism.

6. The intermediate shaft chamfering device of the automobile drive shaft assembly according to claim 1, characterized in that: Both ends of the shaft rod (6) are provided with grooves, and the ends of the two end rods (11) that are close to each other extend into the corresponding grooves and are telescopically and slidably connected thereto. The two grooves are provided with first springs (12), and the two ends of the first springs (12) respectively abut against the inner wall of the groove and one end of the end rod (11), so that the end rod (11) can drive the chamfering disk mechanism to approach the conveying roller (5) to chamfer and grind the intermediate shaft, and can also achieve reset.

7. The intermediate shaft chamfering device of the automobile drive shaft assembly according to claim 1, characterized in that: A cam plate (15) is fixedly mounted on the ends of the two end rods (11) that are away from each other. Two brackets (17) are fixedly mounted on the base (1). A pair of rollers (18) are disposed on the two brackets (17). The two pairs of rollers (18) are in contact with the corresponding cam plates (15) respectively, so that the chamfering plate mechanism can achieve reciprocating displacement when rotating.

8. The intermediate shaft chamfering device of the automobile drive shaft assembly according to claim 1, characterized in that: The rotating disk (13) is telescopically slidably connected to the end rod (11); a second spring (16) is sleeved on the end rod (11); two ends of the second spring (16) respectively abut against the rotating disk (13) and the cam disk (15), so that the cam disk (15) can achieve adaptive buffering when the rotating disk (13) and the grinding ring (14) are brought into contact with the intermediate shaft through the end rod (11).

9. The intermediate shaft chamfering device of the automobile drive shaft assembly according to claim 1, characterized in that: The rotating disk (13) is provided with a limiting mechanism, the limiting mechanism comprising a plurality of slide bars (19) which are telescopically mounted on the rotating disk (13) and are distributed in an annular shape, the two ends of the plurality of slide bars (19) being respectively fixedly mounted with a same limiting ring (20) and a same rotating ring (21), the plurality of slide bars (19) being sleeved with a third spring (22), the two ends of the plurality of third springs (22) respectively being abutted against the rotating disk (13) and the rotating ring (21), thereby ensuring the stability of the intermediate shaft without affecting the rotation and transfer of the intermediate shaft.

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