A spline shaft spline tooth burr processing device

Abstract

The present application relates to the technical field of burr processing, and discloses a spline shaft spline tooth burr processing device, which comprises a first shell, a cover plate is rotationally connected to one side of the first shell through a hinge, a rotating shaft is rotationally connected to the inner wall of one side of the first shell through a bearing, a three-jaw chuck is installed at one end of the rotating shaft, the other end of the rotating shaft penetrates through the first shell, a locking assembly is arranged on the outer wall of one side of the first shell, and the locking assembly is used for fixing the rotating shaft. The three-jaw chuck driven by the first speed reducer is stably fixed by being inserted into the insertion slot through the cutting tool and the two symmetrical grooves formed at the end of the cutting tool, the cutting tool can be accurately embedded into the narrow gap between the spline teeth, and the technical problems that the traditional brush roller is difficult to enter the gap, resulting in burr residue and incomplete removal are solved.

Description

Technical Field

[0001] This invention relates to the field of deburring technology, and more specifically to a deburring device for spline shafts and spline teeth. Background Technology

[0002] Splined shafts, as common mechanical transmission components, are widely used in automobiles, construction machinery, machine tools, and other fields. During the machining of spline teeth, especially after milling, broaching, or hobbing, burrs are easily generated on the tooth sides and roots. If these burrs are not removed in time, they will affect the assembly accuracy, transmission smoothness, and service life of the splined shaft.

[0003] Currently, the removal of burrs from splined shaft spline teeth is mostly done mechanically using brush rollers. However, in practical applications, the bristles of the brush rollers cannot effectively enter the narrow gaps between the spline teeth, resulting in severe burr residue deep at the tooth roots and sides. These residual burrs may fall off or become embedded in the mating surfaces during assembly, causing early wear, jamming, or even failure. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a spline shaft spline tooth burr treatment device to solve the problem that the brush bristles of the brush roller are difficult to effectively enter the narrow gap area between the spline teeth, resulting in serious burr residue deep in the tooth root and tooth side. Such residual burrs may fall off or embed into the mating surface during the assembly process, causing early wear, jamming or even failure.

[0005] The present invention provides the following technical solution: a spline shaft spline tooth burr treatment device, comprising a first housing, a cover plate rotatably connected to one side of the first housing via a hinge, a rotating shaft rotatably connected to the inner wall of one side of the first housing via a bearing, a three-jaw chuck installed at one end of the rotating shaft, and the other end of the rotating shaft passing through the first housing; A locking assembly is provided on one outer wall of the first housing, the locking assembly being used to fix the rotating shaft; A fixing frame is installed on the top inner wall of the first housing. A positioning component for positioning the spline shaft is provided on one side of the fixing frame, and a deburring component for deburring is provided on one side of the fixing frame. The deburring assembly includes a support frame disposed on one side of the fixed frame. An inclined cutting blade is mounted on the lower surface of the support frame, with the cutting edge of the cutting blade facing the central axis of the three-jaw chuck. Two symmetrical grooves are formed at one end of the cutting blade near the three-jaw chuck, and the grooves are adapted to the spline tooth structure of the spline shaft. The lower surface of the fixing frame is provided with a chip removal component for removing chips from the surface of the cutting tool; One side of the fixing frame is equipped with a deburring pretreatment system, which is used to support the spline shaft from the bottom and grind the ends to remove burrs during deburring.

[0006] As a further embodiment of the present invention, the deburring assembly further includes a fifth cylinder fixedly connected to one side of the support frame. The telescopic end of the fifth cylinder passes through the support frame and is fixed to the support frame. A carrier is bolted to the top inner wall of the first housing. A fourth cylinder is bolted to the upper surface of the carrier. A brush holder is bolted to the telescopic end of the fourth cylinder, passes through the carrier, and is bolted to the inner walls of both sides of the brush holder. Two symmetrically arranged brushes are rotatably connected between the inner walls of both sides of the brush holder through bearings. Two first servo motors that drive the two brushes to rotate along the axis are bolted to one side of the brush holder.

[0007] As a further embodiment of the present invention, the locking assembly includes a support plate fixedly connected to the outer wall of the first housing, a second cylinder fixedly connected to the upper surface of the support plate, the telescopic end of the second cylinder passing through the support plate and fixedly connected to an insert block, and the outer wall of the rotating shaft having slots of a plurality of rotating arrays adapted to the insert blocks. A first geared motor is installed on one outer wall of the first housing, and the output shaft of the first geared motor is fixedly connected to the rotating shaft. A second housing is installed on one outer wall of the first housing to cover the first geared motor.

[0008] As a further embodiment of the present invention, the positioning component includes a first cylinder fixedly connected to one side of the fixed frame. The telescopic end of the first cylinder passes through the fixed frame and is fixedly connected to a connecting plate. Two symmetrical positioning blocks are fixedly connected to the side of the connecting plate away from the first cylinder. Each of the positioning blocks has multiple positioning grooves that match the tooth profile of the spline shaft on its opposite side.

[0009] As a further embodiment of the present invention, the deburring pretreatment system includes a sixth cylinder installed on one side of the fixed frame. One end of the sixth cylinder passes through the fixed frame and is equipped with a slide. One side of the slide is slidably connected to a support block and a connecting frame via a slide table. A grinding disc is provided on one side of the connecting frame, and a second servo motor for driving the grinding disc to rotate along the axis is installed on the side of the connecting frame away from the grinding disc. The connecting frame and the support block are respectively equipped with a first rack and a second rack on one side. The slide is equipped with a second geared motor on the side away from the connecting frame. The output shaft of the second geared motor passes through the slide and is connected to a gear by a key. The gear meshes with both the first rack and the second rack. An air blowing frame is installed on one side of the slide. A first air blowing head and a second air blowing head are respectively installed on one side and the top of the air blowing frame. The air blowing port of the first air blowing head faces the upper surface of the support block, and the air blowing port of the second air blowing head faces the spline groove that rotates onto the support block. A second air inlet pipe is provided on one side of the air blowing frame. One end of the second air inlet pipe passes through the housing, and the other end of the second air inlet pipe is fixedly connected to two diverter pipes through a connector. The other ends of the two diverter pipes are fixed and connected to the first air blowing head and the second air blowing head, respectively.

[0010] As a further embodiment of the present invention, the waste removal assembly includes an air guide pipe fixedly connected to the lower surface of the fixed frame, the end of the air guide pipe being connected to a first air inlet pipe via a flange, and a plurality of first nozzles fixedly connected to the outside of the air guide pipe, with the nozzles of the first nozzles facing the cutting blade.

[0011] As a further embodiment of the present invention, the waste removal assembly includes an inclined mounting frame disposed on the lower surface of the fixed frame, a third cylinder fixedly connected to the upper surface of the fixed frame, the telescopic end of the third cylinder passing through the fixed frame and fixed to the mounting frame, a linear motor fixedly connected to the top inner wall of the mounting frame, a scraper fixedly connected to the bottom of the mover of the linear motor, and an insert plate fixedly connected to the bottom of the mounting frame, the insert plate matching the cutting edge of the cutting tool.

[0012] As a further embodiment of the present invention, after the insert plate moves to be flush with the cutting blade, the scraper contacts the upper surface of the cutting blade.

[0013] The technical effects and advantages of this invention are as follows: By using a cutting blade and two symmetrical grooves at its end, a three-jaw chuck driven by a first reduction motor, and a plug inserted into the slot for stable fixation, the cutting blade can be precisely embedded into the narrow gap between the spline teeth. At the same time, by setting a relatively movable support block and a grinding disc, stable support is provided for the bottom of the spline shaft during cutting. Meanwhile, the grinding disc can grind and remove burrs from the end of the spline shaft after processing, solving the technical problem that traditional brush rollers are difficult to enter the gap, resulting in burr residue and incomplete removal. In addition, the design of the two grooves allows for two cuts on the same spline groove when rotating one spline tooth angle, significantly improving the efficiency of burr removal. Furthermore, the brush can be used to perform secondary deburring on the end of the spline teeth, thus comprehensively completing the removal of burrs from the spline tooth surface. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a schematic cross-sectional view of the first housing structure of the present invention.

[0016] Figure 3 This is a schematic diagram of the locking assembly structure of the present invention.

[0017] Figure 4 This is a schematic diagram of the positioning component and deburring component of the present invention.

[0018] Figure 5 For the present invention Figure 4 A partially enlarged structural diagram.

[0019] Figure 6 This is a schematic diagram of the burr-removing structure of the cutting tool of the present invention.

[0020] Figure 7 This is a schematic diagram of the positioning block positioning structure of the present invention.

[0021] Figure 8 This is a schematic diagram of the brush and brush holder structure of the present invention.

[0022] Figure 9 This is a schematic diagram of the support block and grinding disc structure of the present invention.

[0023] Figure 10 For the present invention Figure 9 A partial cross-sectional structural diagram.

[0024] Figure 11 This is a schematic diagram of the structure of the first and second air blowing heads of the present invention.

[0025] Figure 12 This is a schematic diagram of the scraper chip removal assembly of the present invention.

[0026] Figure 13 This is a schematic diagram of the scraper and insert plate structure of the present invention.

[0027] Figure 14 This is a schematic diagram of the insert plate insertion structure of the present invention.

[0028] The attached figures are labeled as follows: 1. Positioning component; 2. Deburring component; 3. Waste removal component; 5. Locking component; 6. Cover plate; 7. First housing; 8. Second housing; 9. Three-jaw chuck; 10. First geared motor; 11. Rotating shaft; 12. Fixing frame; 13. Carrier frame; 14. Fourth cylinder; 15. Brush holder; 16. Brush; 17. First servo motor; 18. Sixth cylinder; 19. Slide; 20. Support block; 21. Second servo motor; 22. Connecting frame; 23. Grinding disc; 24. First rack; 25. Gear; 26. Second rack; 27. Second geared motor; 28. First air blower head; 29. ​​Second air blower head; 30. Air blower frame; 31. Second air inlet pipe; 32. Diverter pipe; 101. Positioning block; 102. Positioning groove; 103. First cylinder; 104. Connecting plate; 201. Fifth cylinder; 202. Support frame; 203. Cutting tool; 204. Groove; 301. Air guide pipe; 302. First air inlet pipe; 303. First nozzle; 304. Third cylinder; 305. Mounting bracket; 306. Linear motor; 307. Scraper; 308. Insert plate; 501, Second cylinder; 502, Support plate; 503, Insert block; 504, Slot. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Reference Figures 1-13 The present invention provides a spline shaft spline tooth burr treatment device, including a first housing 7, and a cover plate 6 is rotatably connected to one side of the first housing 7 via a hinge. The cover plate 6 can effectively protect the internal structure of the device and prevent waste chips from splashing during the processing. like Figure 2 As shown, a rotating shaft 11 is rotatably connected to one side of the inner wall of the first housing 7 via a bearing. A three-jaw chuck 9 is fixed to one end of the rotating shaft 11 by bolts. The three-jaw chuck 9 is used to clamp and fix the spline shaft, which facilitates the subsequent processing of the spline shaft. It should be noted that the three-jaw chuck 9 is existing technology, and those skilled in the art can set it according to actual needs, which will not be elaborated here.

[0031] like Figure 5 As shown, a fixing frame 12 is fixed to the top inner wall of the first housing 7 by bolts. A deburring assembly 2 for deburring is provided on one side of the fixing frame 12. The deburring assembly 2 includes a support frame 202 provided on one side of the fixing frame 12. An inclined cutting blade 203 is fixed to the lower surface of the support frame 202 by bolts. The cutting blade 203 is used to cut the burrs on the spline teeth of the spline shaft. The cutting edge of the cutting tool 203 faces the central axis of the three-jaw chuck 9. Two symmetrical grooves 204 are provided at the end of the cutting tool 203 near the three-jaw chuck 9. The grooves 204 are adapted to the spline tooth structure of the spline shaft, so that the cutting tool 203 can accurately fit into the gap between the spline teeth when deburring the spline shaft, and perform targeted cutting of burrs on the tooth side and tooth root. This effectively solves the problem of burr residue caused by the difficulty of traditional brush rollers entering narrow gaps.

[0032] A fifth cylinder 201 is fixed to one side of the support frame 202 by bolts. The telescopic end of the fifth cylinder 201 passes through the support frame 202 and is fixed to the support frame 202. The fifth cylinder 201 is used to drive the support frame 202 to drive the cutting tool 203 to move along the spline shaft axis to achieve the deburring of the spline teeth of the spline shaft.

[0033] The other end of the rotating shaft 11 passes through the first housing 7. The first geared motor 10 is fixed to one side of the outer wall of the first housing 7 by bolts, and the output shaft of the first geared motor 10 is fixedly connected to the rotating shaft 11. The rotating shaft 11 is driven by the first geared motor 10 to drive the three-jaw chuck 9 and the splined shaft held to rotate, so that each spline tooth of the splined shaft is flush with the cutting tool 203 in sequence.

[0034] A second housing 8 is fixed to one side of the outer wall of the first housing 7 by bolts, covering the first geared motor 10. The second housing 8 can protect the first geared motor 10. Multiple heat dissipation holes are provided on both sides of the second housing 8, which can accelerate the dissipation of heat generated by the first geared motor 10 during operation, prevent the first geared motor 10 from overheating and being damaged due to long-term operation, and extend the service life of the equipment. In use, the spline shaft to be processed is clamped and fixed using the three-jaw chuck 9. Then, the cover plate 6 is closed. Next, the fifth cylinder 201 is activated, driving the support frame 202 to move the cutting blade 203 axially along the spline shaft, bringing it close to the shaft. As it continues to move, the cutting blade 203 contacts the spline teeth, at which point it cuts the burrs on the spline teeth. Once the burrs on this spline tooth are removed, the fifth cylinder 201 is activated to reset the cutting blade 203. Then, the first reduction motor 10 is activated, rotating the shaft 11 and the three-jaw chuck 9 by a certain angle, aligning the next spline tooth with the groove 204 of the cutting blade 203. The fifth cylinder 201 is then activated again, repeating the cutting action until all spline teeth have been deburred. In this embodiment, reference Figure 9 , Figure 10 and Figure 11 A deburring pretreatment system is provided on one side of the fixed frame 12. The deburring pretreatment system is used to support the spline shaft from the bottom and grind the end during deburring. The deburring pretreatment system includes a sixth cylinder 18 that is fixed to one side of the fixed frame 12 by bolts. One end of the sixth cylinder 18 passes through the fixed frame 12 and is fixed to a slide 19 by bolts. The sixth cylinder 18 is used to drive the slide 19 to move. A support block 20 and a connecting frame 22 are slidably connected on one side of the slide 19 via a slide table; a grinding disc 23 is provided on one side of the connecting frame 22, and a second servo motor 21 for driving the grinding disc 23 to rotate along the axis is fixed by bolts on the side of the connecting frame 22 away from the grinding disc 23. The second servo motor 21 can drive the grinding disc 23 to rotate, thereby removing burrs from the end of the spline shaft. During grinding, some debris will be ground off, and some burrs will be ground to be perpendicular to the spline shaft. Then, the cutting tool 203 can be used to cut the burrs perpendicular to the spline shaft, effectively ensuring the thoroughness of end burr removal. The first rack 24 and the second rack 26 are respectively fixed to one side of the connecting frame 22 and the support block 20 by bolts. The second gear motor 27 is fixed to the side of the slide 19 away from the connecting frame 22 by bolts. The output shaft of the second gear motor 27 passes through the slide 19 and is connected to a gear 25 by a key. The gear 25 meshes with both the first rack 24 and the second rack 26. When the gear 25 rotates, it will simultaneously drive the first rack 24 and the second rack 26 to move in opposite directions, thereby causing the support block 20 and the connecting frame 22 to move synchronously in opposite directions. It should be noted that both the first geared motor 10 and the second geared motor 27 are existing technologies. Both the first geared motor 10 and the second geared motor 27 are equipped with encoders. The number of rotations and the rotation angle of the output shaft of the first geared motor 10 are controllable and highly accurate. Those skilled in the art can set them according to actual needs, which will not be elaborated here.

[0035] When the grinding disc 23 is needed, the second reduction motor 27 is started. The second reduction motor 27 drives the gear 25 to rotate. The gear 25 simultaneously drives the meshing first rack 24 and second rack 26 to move in opposite directions, causing the support block 20 to move down and the connecting frame 22 to drive the grinding disc 23 to move toward the end of the spline shaft. When the support block 20 is needed, the second reduction motor 27 is started to reverse, the gear 25 rotates in the opposite direction, and drives the first rack 24 and the second rack 26 to move in the opposite direction, so that the support block 20 moves toward the bottom of the spline shaft. The grinding disc 23 moves in sync away from the spline shaft. The support block 20 has the same shape as one of the spline grooves of the spline shaft. The support block 20 will be inserted into the spline groove and support the spline shaft from the bottom, so as to prevent the spline shaft from shaking due to the force of the cutting tool 203 during the cutting process, and improve the stability and processing accuracy of the deburring operation. The support block 20 is used in conjunction with the cutting tool 203. When the cutting tool 203 cuts the spline teeth at the current position, the support block 20 is inserted into the spline groove at the bottom, forming a counter-support with the cutting force of the cutting tool 203, which maximizes the offset of the force generated by the cutting operation on the spline shaft and avoids the spline shaft from being deflected by force. When the spline shaft needs to be rotated, both the support block 20 and the polishing disc 23 move to the middle position, which will not hinder the rotation of the spline shaft.

[0036] During the cutting process, the waste chips will flow into the spline groove with the cutting fluid. At the same time, after the support block 20 is separated from the spline groove, the cutting fluid will drip onto the upper surface of the support block 20. One side of the slide 19 is fixed with an air blowing frame 30 by bolts. One side and the top of the air blowing frame 30 are respectively fixed with a first air blowing head 28 and a second air blowing head 29 by bolts. The air blowing nozzle of the first air blowing head 28 faces the upper surface of the support block 20. The first air blowing head 28 is used to blow away the waste chips and residual cutting fluid on the upper surface of the support block 20 to avoid the accumulation of waste chips affecting the subsequent insertion of the support block 20 into the spline groove. The air outlet of the second air blowing head 29 faces the spline groove that rotates to the support block 20 next, which can blow away the waste generated and remaining in the spline groove in the previous cutting step in advance, and avoid the waste residue affecting the normal insertion of the support block 20. A second air inlet pipe 31 is provided on one side of the air blower 30. The second air inlet pipe 31 is connected to an external air pump. One end of the second air inlet pipe 31 passes through the first housing 7. The other end of the second air inlet pipe 31 is fixedly connected to two split pipes 32 through a connector. The other ends of the two split pipes 32 are fixed and connected to the first air blower head 28 and the second air blower head 29, respectively. It should be noted that the second air intake pipe 31 is a flexible pipe. Flexible pipes are existing technology, and those skilled in the art can set them according to actual needs, which will not be elaborated here.

[0037] After the external air pump is started, high-pressure gas enters the diversion pipe 32 along the second air inlet pipe 31, and is then delivered to the first air blowing head 28 and the second air blowing head 29 respectively to spray out, continuously completing the cleaning of the support block 20 and the pre-de-shaving of the spline groove.

[0038] The two grooves 204 can simultaneously deburr two spline teeth of the spline shaft. When the first reduction motor 10 drives the rotating shaft 11 to rotate the three-jaw chuck 9 and the spline shaft by the angle of one spline tooth, the design of the two grooves 204 can perform two deburring operations on the same spline groove, further improving the thoroughness of deburring.

[0039] The top inner wall of the first housing 7 is bolted with a carrier 13. The upper surface of the carrier 13 is bolted with a fourth cylinder 14. The telescopic end of the fourth cylinder 14 passes through the carrier 13 and is bolted with a brush holder 15. The inner walls of the two sides of the brush holder 15 are rotatably connected by bearings with two symmetrically arranged brushes 16. The two brushes 16 correspond to the two ends of the spline teeth of the spline shaft. Two first servo motors 17 are bolted to one side of the brush holder 15 to drive the two brushes 16 to rotate along the axis. The 16-brush is made of pig bristles and has a relatively hard texture. It is used to rotate and grind away the burrs remaining at both ends of the spline shaft spline teeth, further improving the burr removal effect. The fourth cylinder 14 is activated to push the brush holder 15 downward, so that the two brushes 16 contact the two ends of the spline shaft respectively. Then, the two first servo motors 17 are activated to drive the two brushes 16 to rotate. The rotation of the brushes 16 is used to polish and clean the spline shaft spline teeth end faces and the small burrs remaining on the teeth. At the same time, the first reduction motor 10 is activated to drive the spline shaft to rotate at a constant speed, so that the ends of all spline teeth of the spline shaft can be polished by the brushes 16. After polishing is completed, the fourth cylinder 14 drives the brush holder 15 and brushes 16 to reset.

[0040] In this embodiment, reference Figure 3 A locking assembly 5 is provided on one outer wall of the first housing 7. The locking assembly 5 is used to fix the rotating shaft 11. The locking assembly 5 includes a support plate 502 fixed to the outer wall of the first housing 7 by bolts. A second cylinder 501 is fixed to the upper surface of the support plate 502 by bolts. The telescopic end of the second cylinder 501 passes through the support plate 502 and is fixed to a plug 503 by bolts. The second cylinder 501 is used to drive the plug 503 to move up and down. The outer wall of the rotating shaft 11 is provided with a plurality of rotating array slots 504 adapted to the plug 503. When the first deceleration electric current is used to lock the shaft 11, the shaft 11 is locked to the outer wall of the first housing 7. After the machine 10 drives the rotating shaft 11 to rotate to the target angle, the second cylinder 501 drives the insert block 503 to move downward and insert into the corresponding slot 504, thereby achieving positioning and locking of the rotating shaft 11, preventing slight shaking of the rotating shaft 11 when the cutting tool 203 performs burr treatment, and ensuring the cutting accuracy of the cutting tool 203 on the spline teeth. The pitch angle of the slot 504 is consistent with the pitch angle of the spline teeth. The first reduction motor 10 drives the rotating shaft 11 to rotate, so that the spline teeth are precisely aligned with the groove 204 of the cutting tool 203, and then the insert block 503 will be aligned with the slot 504.

[0041] In this embodiment, reference Figure 4 and Figure 5 A positioning assembly 1 for positioning the spline shaft is provided on one side of the fixed frame 12. The positioning assembly 1 includes a first cylinder 103 fixed to one side of the fixed frame 12 by bolts. The first cylinder 103 is used to drive the connecting plate 104 to move the positioning block 101 axially in the direction of the spline shaft. The telescopic end of the first cylinder 103 passes through the fixed frame 12 and is fixed to the connecting plate 104 by bolts. Two symmetrical positioning blocks 101 are fixed to the side of the connecting plate 104 away from the first cylinder 103 by bolts. Multiple positioning grooves 102 matching the tooth profile of the spline shaft are opened on the opposite side of the positioning blocks 101. The spline teeth of the spline shaft can be embedded in the positioning grooves 102. Before the spline shaft is clamped by the three-jaw chuck 9, the spline shaft is positioned to ensure that the cutting tool 203 can be accurately aligned with the spline teeth.

[0042] Place the splined shaft into the clamping area of ​​the three-jaw chuck 9 (at this time, the three-jaw chuck 9 has not yet clamped the splined shaft), and then start the first cylinder 103. The telescopic end of the first cylinder 103 pushes the connecting plate 104 to move the two positioning blocks 101 towards the splined shaft. Then, manually or by a robot, rotate the splined shaft and adjust the angle of the splined shaft until the spline teeth of the splined shaft are embedded in the positioning grooves 102 on the positioning blocks 101. Then, the pneumatic three-jaw chuck 9 clamps and fixes the splined shaft. Then, start the first cylinder 103. The telescopic end of the first cylinder 103 drives the connecting plate 104 and the positioning blocks 101 to reset, releasing the positioning restriction on the splined shaft so that the subsequent deburring process can proceed smoothly.

[0043] In this embodiment, reference Figure 5 The lower surface of the mounting bracket 12 is provided with a chip removal assembly 3 for removing chips from the surface of the cutting tool 203. The chip removal assembly 3 includes an air guide pipe 301 fixed to the lower surface of the mounting bracket 12 by bolts. The end of the air guide pipe 301 is connected to a first air inlet pipe 302 through a flange. The first air inlet pipe 302 is connected to an external high-pressure air source. Multiple first nozzles 303 are welded to the outside of the air guide pipe 301. The nozzles of the first nozzles 303 face the cutting tool 203. After the cutting tool 203 completes a burr cutting and resets, the external high-pressure air source delivers high-pressure gas to the air guide pipe 301 through the first air inlet pipe 302. The high-pressure gas is ejected through the multiple first nozzles 303 to form a high-speed airflow, which can quickly blow away the metal chips remaining on the cutting edge of the cutting tool 203 and prevent the chips from adhering to the surface of the cutting tool 203 and affecting the cutting effect of the next cutting.

[0044] Working principle of the invention: Place the spline shaft to be processed into the clamping area of ​​the three-jaw chuck 9, and then start the first cylinder 103. The telescopic end of the first cylinder 103 pushes the connecting plate 104 to drive the two positioning blocks 101 to move towards the spline shaft. Then rotate the spline shaft and adjust the spline shaft angle until the spline teeth of the spline shaft are embedded in the positioning groove 102 on the positioning block 101. Then the pneumatic three-jaw chuck 9 clamps and fixes the spline shaft. Then the first cylinder 103 is started. The extension end of the first cylinder 103 drives the connecting plate 104 and the positioning block 101 to reset, releasing the positioning restriction on the spline shaft. Then the cover plate 6 is closed, and the second cylinder 501 drives the insert block 503 to move downward and insert into the corresponding slot 504, locking the position of the rotating shaft 11. Then start the second reduction motor 27. The second reduction motor 27 drives the gear 25 to rotate. The gear 25 simultaneously drives the meshing first rack 24 and second rack 26 to move in opposite directions, causing the support block 20 to move down and the connecting frame 22 to drive the grinding disc 23 to move toward the end of the spline shaft, moving the grinding disc 23 to contact the end of the spline shaft. Then the second servo motor 21 is started, which drives the grinding disc 23 to rotate and grind the end of the spline shaft. Next, the second reduction motor 27 is started to reverse, the gear 25 rotates in the opposite direction, driving the first rack 24 and the second rack 26 to move in the opposite direction, so that the support block 20 moves toward the bottom of the spline shaft, and the grinding disc 23 moves in the same direction away from the spline shaft, and the support block 20 will be inserted into the spline groove at the bottom. Next, the fifth cylinder 201 is started. The fifth cylinder 201 drives the support frame 202 to move the cutting tool 203 along the spline shaft axis, so that the cutting tool 203 approaches the spline shaft. As it continues to move, the cutting tool 203 contacts the spline teeth of the spline shaft. At this time, the cutting tool 203 cuts the burrs on the spline teeth. Once the spline burr removal is complete, the fifth cylinder 201 is activated to reset the cutting tool 203. At this time, the external high-pressure gas source delivers high-pressure gas to the guide pipe 301 through the first air inlet pipe 302. The high-pressure gas is ejected through multiple first nozzles 303 to form a high-speed airflow, which quickly blows away the metal waste residue remaining on the cutting edge of the cutting tool 203.

[0045] Next, the second cylinder 501 is activated to drive the insert block 503 to move upward and disengage from the slot 504, thereby releasing the locking of the rotating shaft 11; At the same time, the second reduction motor 27 is started, and the second reduction motor 27 drives the gear 25 to rotate, so that the support block 20 and the grinding disc 23 both move to the middle position; Then the first reduction motor 10 drives the rotating shaft 11 and the three-jaw chuck 9 to rotate at a certain angle, so that the next spline tooth is aligned with the groove 204 of the cutting tool 203. Then the fifth cylinder 201 is started again to repeat the above cutting action until all the spline teeth are deburred.

[0046] The fourth cylinder 14 is activated to push the brush holder 15 downward, so that the two brushes 16 contact the two ends of the spline shaft respectively. Then, the two first servo motors 17 are activated to drive the two brushes 16 to rotate. At the same time, the first reduction motor 10 is activated to drive the spline shaft to rotate at a constant speed, so as to grind and clean the end faces of all spline teeth of the spline shaft. After the grinding is completed, the fourth cylinder 14 drives the brush holder 15 and brushes 16 to reset, thus completing the deburring of the spline shaft.

[0047] As another embodiment of the waste removal component 3 of the present invention, refer to Figures 12-14The waste removal assembly 3 includes an inclined mounting bracket 305 disposed on the lower surface of the fixed frame 12. A third cylinder 304 is bolted to the upper surface of the fixed frame 12. The telescopic end of the third cylinder 304 passes through the fixed frame 12 and is fixed to the mounting bracket 305. The third cylinder 304 is used to drive the mounting bracket 305 to move. A linear motor 306 is bolted to the top inner wall of the mounting bracket 305. A scraper 307 is bolted to the bottom of the mover of the linear motor 306. The linear motor 306 is used to drive the scraper 307 to reciprocate along the length direction of the cutting blade 203. An insert plate 308 mates with the cutting edge of the cutting blade 203. The insert plate 308 moves to a position where it is aligned with the cutting edge. After the cutting tool 203 is aligned, the scraper 307 contacts the upper surface of the cutting tool 203. The third cylinder 304 is activated to drive the mounting bracket 305 to move the linear motor 306 and the scraper 307 toward the cutting tool 203, so that the scraper 307 contacts the upper surface of the cutting tool 203. At the same time, the insert plate 308 is inserted into the groove 204 of the cutting tool 203. Then, the linear motor 306 is activated, and the linear motor 306 drives the scraper 307 to move back and forth along the length of the cutting tool 203 to scrape and clean the residual chips on the upper surface of the cutting tool 203 and in the groove 204, further ensuring the cleanliness of the cutting edge of the cutting tool 203 and avoiding the accumulation of chips that will affect the subsequent cutting accuracy. It should be noted that: the first cylinder 103, the second cylinder 501, the third cylinder 304, the fourth cylinder 14, the fifth cylinder 201, and the sixth cylinder 18 in this application are all power actuators that convert the pressure energy of compressed air into mechanical energy. They can be connected to external air pipes and solenoid valves and drive the piston to perform linear reciprocating motion by controlling the gas inlet and outlet. They can be used in conjunction with magnetic switches, proximity switches, or photoelectric switches to achieve precise control of the cylinder piston rod extension and retraction displacement. The linear motor 306 is prior art, and those skilled in the art can set it according to actual needs, which will not be described in detail here.

[0048] By embedding the insert plate 308 into the groove 204 of the cutting blade 203, it is possible to prevent the waste from adhering to the cutting edge of the cutting blade 203 when the scraper 307 reaches the end. The insert plate 308 can block the waste, so that the scraper 307 can completely scrape the waste off the surface of the cutting blade 203, ensuring the cleaning effect.

[0049] Finally, the following points should be noted: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change. The electronic components and modules used in this invention can all be commonly used parts on the market that can achieve the specific functions in this case, and the specific models and sizes can be selected and adjusted according to actual needs; The accompanying drawings of the embodiments disclosed in this invention only involve structures relevant to the embodiments disclosed in this invention. Other structures can be referred to with common designs. Unless otherwise specified, the same embodiment and different embodiments of this invention can be combined with each other.

Claims

1. A spline shaft spline tooth burr treatment device, comprising a first housing (7), wherein a rotating shaft (11) is rotatably connected to one inner wall of the first housing (7) via a bearing, characterized in that: A three-jaw chuck (9) is installed at one end of the shaft (11), and a locking assembly (5) is provided on one side of the outer wall of the first housing (7) for fixing the other end of the shaft (11) passing through the first housing (7). A fixing bracket (12) is installed on the top inner wall of the first housing (7). A positioning component (1) for positioning the spline shaft is provided on one side of the fixing bracket (12), and a deburring component (2) for deburring is provided on one side of the fixing bracket (12). The deburring assembly (2) includes a support frame (202) disposed on one side of the fixed frame (12). An inclined cutting blade (203) is mounted on the lower surface of the support frame (202). The cutting edge of the cutting blade (203) faces the central axis of the three-jaw chuck (9). A spline tooth structure groove (204) adapted to the spline shaft is opened at one end of the cutting blade (203) near the three-jaw chuck (9). A deburring pretreatment system is provided on one side of the fixing frame (12). The deburring pretreatment system is used for the support of the bottom of the spline shaft and the deburring of the end during deburring. A chip removal component (3) is provided on the lower surface of the fixing frame (12) for removing waste chips from the surface of the cutting tool (203).

2. The spline shaft spline tooth burr treatment equipment according to claim 1, characterized in that: The deburring assembly (2) also includes a fifth cylinder (201) fixedly connected to one side of the support frame (202). The telescopic end of the fifth cylinder (201) passes through the support frame (202) and is fixed to the support frame (202). The top inner wall of the first housing (7) is bolted to a carrier frame (13). The upper surface of the carrier frame (13) is bolted to a fourth cylinder (14). The telescopic end of the fourth cylinder (14) passes through the carrier frame (13) and is bolted to a brush holder (15). Two symmetrically arranged brushes (16) are rotatably connected between the inner walls of the two sides of the brush holder (15) through bearings. Two first servo motors (17) are bolted to one side of the brush holder (15) to drive the two brushes (16) to rotate along the axis.

3. The spline shaft spline tooth burr treatment equipment according to claim 1, characterized in that: The locking assembly (5) includes a support plate (502) fixedly connected to the outer wall of the first housing (7). A second cylinder (501) is fixedly connected to the upper surface of the support plate (502). The telescopic end of the second cylinder (501) passes through the support plate (502) and is fixedly connected to an insert (503). The outer wall of the rotating shaft (11) is provided with slots (504) of a plurality of rotating arrays that are adapted to the insert (503). A first geared motor (10) is installed on one side of the outer wall of the first housing (7), and the output shaft of the first geared motor (10) is fixedly connected to the rotating shaft (11). A second housing (8) covering the first geared motor (10) is installed on one side of the outer wall of the first housing (7).

4. The spline shaft spline tooth burr treatment equipment according to claim 3, characterized in that: The positioning assembly (1) includes a first cylinder (103) fixedly connected to one side of the fixed frame (12). The telescopic end of the first cylinder (103) passes through the fixed frame (12) and is fixedly connected to a connecting plate (104). Two symmetrical positioning blocks (101) are fixedly connected to the side of the connecting plate (104) away from the first cylinder (103). Multiple positioning grooves (102) matching the tooth profile of the spline shaft are opened on the opposite side of the positioning blocks (101).

5. The spline shaft spline tooth burr treatment equipment according to claim 1, characterized in that: The deburring pretreatment system includes a sixth cylinder (18) installed on one side of the fixed frame (12). One end of the sixth cylinder (18) passes through the fixed frame (12) and is fitted with a slide (19). One side of the slide (19) is slidably connected to a support block (20) and a connecting frame (22) via a slide table. A grinding disc (23) is provided on one side of the connecting frame (22). A second servo motor (21) for driving the grinding disc (23) to rotate along the axis is installed on the side of the connecting frame (22) away from the grinding disc (23). A first rack (24) and a second rack (26) are respectively installed on one side of the connecting frame (22) and the support block (20). A second geared motor (27) is installed on the side of the slide (19) away from the connecting frame (22). The output shaft of the second geared motor (27) passes through the slide (19) and is connected to a gear (25) by a key. The gear (25) meshes with both the first rack (24) and the second rack (26). A blowing frame (30) is installed on one side of the slide (19). A first blowing head (28) and a second blowing head (29) are installed on one side and the top of the blowing frame (30), respectively. The air outlet of the first blowing head (28) faces the upper surface of the support block (20), and the air outlet of the second blowing head (29) faces the spline groove that rotates to the support block (20). A second air inlet pipe (31) is provided on one side of the blowing frame (30), and one end of the second air inlet pipe (31) passes through the housing (7). The other end of the second air inlet pipe (31) is fixedly connected to two diverter pipes (32) through a connector, and the other ends of the two diverter pipes (32) are fixed and connected to the first blowing head (28) and the second blowing head (29), respectively.

6. The spline shaft spline tooth burr treatment equipment according to claim 1, characterized in that: The waste removal assembly (3) includes an air duct (301) fixedly connected to the lower surface of the fixed frame (12). The end of the air duct (301) is connected to a first air inlet pipe (302) via a flange. Multiple first nozzles (303) are fixedly connected to the outside of the air duct (301). The nozzles of the first nozzles (303) face the cutting blade (203).

7. The spline shaft spline tooth burr treatment equipment according to claim 1, characterized in that: The waste removal assembly (3) includes an inclined mounting bracket (305) set on the lower surface of the fixed frame (12). A third cylinder (304) is fixedly connected to the upper surface of the fixed frame (12). The telescopic end of the third cylinder (304) passes through the fixed frame (12) and is fixed to the mounting bracket (305). A linear motor (306) is fixedly connected to the top inner wall of the mounting bracket (305). A scraper (307) is fixedly connected to the bottom of the mover of the linear motor (306). An insert plate (308) is fixedly connected to the bottom of the mounting bracket (305). The insert plate (308) is matched with the cutting edge of the cutting tool (203).

8. The spline shaft spline tooth burr treatment equipment according to claim 7, characterized in that: After the insert plate (308) moves to be flush with the cutting tool (203), the scraper (307) contacts the upper surface of the cutting tool (203).

Images