Chamfering mechanism for precision gear machining

Abstract

The invention relates to the technical field of gear machining, in particular to a chamfering mechanism for precision gear machining, which comprises a floating unit, a chamfering unit and an adjusting unit, the floating unit is fixedly mounted through a fixing support, the chamfering unit is fixedly arranged on the surface of the floating unit, and the adjusting unit is fixedly arranged on the surface of the floating unit. Through the two chamfering tool bits which are oppositely arranged up and down, synchronous chamfering machining can be conducted on the upper tooth edge and the lower tooth edge of the gear, the chamfering efficiency of the single gear is improved, meanwhile, the axis of each chamfering tool bit is parallel to the axis of the gear, and it can be guaranteed that the tooth edge angle of the gear is always consistent; the angle of the upper path guide rail and the angle of the lower path guide rail are set through the adjusting unit, so that the gear chamfering mechanism can be used for chamfering straight-tooth gears and different sharp-tooth gears, the overall use range is wide, and functionality is high.

Description

Technical Field

[0001] The present invention relates to the technical field of gear processing, and specifically to a chamfering mechanism for precision gear processing. Background Technique

[0002] A gear is a mechanical part usually used to transmit power and motion. Gear chamfering refers to chamfering the edges of gear racks. This treatment is usually used to improve the wear resistance of gears, reduce noise and vibration, and help improve the operating efficiency of gears. Chamfering can make the gears rotate more smoothly during meshing and reduce the possibility of damage or breakage caused by sharp edges. Referring to a Chinese patent with the application number 202411114368.0, a gear circulating chamfering device is disclosed. The flipping drive assembly flips the gear workpiece, facilitating chamfering of the tooth grooves at the bottom end of the gear workpiece. There is no need for workers to release and use the clamping rod and spring pair to clamp and fix the gear workpiece, saving cumbersome operation steps and improving the chamfering and grinding effect of the gear workpiece. When this device chamfers the gear, it cannot chamfer both sides of the gear synchronously at the same time, resulting in low processing efficiency. At the same time, the grinding disc of this device cannot ensure that the contact angle between the gear and each point on the tooth edge is consistent during the rotation of the gear, resulting in uneven chamfering of the gear processing surface. For this reason, we propose a chamfering mechanism for precision gear processing to solve the above technical problems. Summary of the Invention

[0003] The present invention provides the following technical solutions: A chamfering mechanism for precision gear processing, comprising: A floating unit, fixedly installed through a fixed bracket; A chamfering unit, fixedly arranged on the surface of the floating unit for precision gear chamfering; An adjusting unit, fixedly arranged on the surface of the floating unit for adjusting the chamfering angle of the chamfering unit.

[0004] As a preferred solution of the present invention, the floating unit includes: A floating plate and a front cross beam, the floating plate is slidably arranged on the front of the front cross beam; End plates, fixedly installed at the left and right ends of the back of the front cross beam; A servo motor, fixedly installed on the outer surface of one of the end plates; A ball screw, rotatably installed between the left and right end plates and connected to the output shaft of the servo motor through a coupling; A ball nut, fixedly installed in the middle of the back of the floating plate and threadedly connected to the ball screw.

[0005] As a preferred solution of the present invention, the chamfering unit includes: Connecting plates are fixedly installed on the front of the floating plate in an up-and-down distribution. Key shafts are respectively rotatably installed inside the connecting plates, penetrate through the top and bottom of the connecting plates, and the number is two. Key sleeves are respectively slidably installed at one end of the outer walls of the two key shafts close to each other. Adjusting sleeves are respectively slidably installed on the outer walls of the two key sleeves. Chamfering tool heads are fixedly installed at one end of the upper and lower adjusting sleeves close to each other, and the chamfering tool heads are used for chamfering precision gears.

[0006] As a preferred solution of the present invention, the chamfering unit further includes: Driven gears are respectively fixedly installed at one end of the outer walls of the upper and lower key shafts away from each other. Power dividing shafts are rotatably installed between the upper and lower connecting plates and penetrate through the top and bottom of the upper and lower connecting plates. Driving gears are fixedly installed on the upper and lower parts of the outer wall of the power dividing shaft, and the driving gears are respectively meshed with the upper and lower driven gears. Driven synchronous pulleys are fixedly installed on the upper part of the outer wall of the power dividing shaft. Power motors are fixedly installed on the upper part of the back of the floating plate. Driving synchronous pulleys are fixedly installed on the output shafts of the power motors. Synchronous belts are sleeved around the driven synchronous pulleys and the driving synchronous pulleys.

[0007] As a preferred solution of the present invention, the chamfering unit further includes: Ring groove wheels are respectively fixedly installed at one end of the outer parts of the upper and lower key sleeves away from each other. Forks are respectively movably sleeved in the ring grooves of the upper and lower ring groove wheels. Right-angle blocks are fixedly installed on one side surface of the upper and lower forks close to each other, and the right-angle blocks are located at one end of the fork surface away from the ring groove wheel. Axle pins are fixedly installed at one end of the back surfaces of the upper and lower right-angle blocks close to each other. Guide wheels are respectively rotatably installed on the outer walls of the upper and lower axle pins.

[0008] As a preferred solution of the present invention, the chamfering unit further includes: Positioning pins are fixedly installed on the front left end of the front cross beam in an up-and-down distribution. Path guide rails are respectively rotatably installed on the outer walls of the upper and lower positioning pins, and the upper and lower guide wheels are respectively slidably installed in the path grooves of the upper and lower path guide rails.

[0009] As a preferred solution of the present invention, the adjusting unit includes: The fixed seats are fixedly installed at the right end of the front beam on the front side, and the number is two. The two fixed seats are arranged parallel to each other left and right, and the two fixed seats are located between the upper and lower path guide rails; The adjusting stud is rotatably installed inside one of the fixed seats at the right end and penetrates through the left side and the right side of the fixed seat; The adjusting bracket is threadedly connected to the periphery of the adjusting stud; The sliding pins are fixedly installed on the back of the adjusting bracket in an up-and-down distribution; The adjusting blocks are fixedly installed at the right end of the bottoms of the two path guide rails in an up-and-down symmetric distribution; The inclined grooves are respectively penetrated and opened on the front sides of the upper and lower adjusting blocks. The upper and lower inclined grooves are symmetrically arranged, and the inner walls of the upper and lower inclined grooves are respectively slidably connected to the upper and lower sliding pins.

[0010] As a preferred solution of the present invention, the floating unit further includes: The linear guide rail is fixedly installed on the back of the front beam; The linear slider is slidably installed on the periphery of the linear guide rail and is fixedly connected to the front side of the floating plate through bolts; The rear beam is fixedly installed on the side surfaces of the left and right end plates away from the front beam.

[0011] As a preferred solution of the present invention, the chamfering unit further includes: The locking bolt is screwed inside the side wall of the adjusting sleeve, and the end of the locking bolt abuts against the outer wall of the key sleeve; The guiding hole is penetrated and opened at the top of the fork; The guiding rods are fixedly installed on the opposite surfaces of the upper and lower connecting plates. The outer walls of the upper and lower guiding rods are respectively slidably connected to the inner walls of the upper and lower guiding holes.

[0012] As a preferred solution of the present invention, the adjusting unit further includes: The guide posts are fixedly installed between the left and right fixed seats in an up-and-down distribution. The adjusting bracket is slidably installed on the peripheries of the upper and lower guide posts.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. In the present invention, through the two chamfering cutters arranged oppositely up and down, the upper and lower tooth edges of the gear can be chamfered synchronously, improving the chamfering efficiency of a single gear. At the same time, since the axis of the chamfering cutter is parallel to the axis of the gear, it can ensure that the angle with the tooth edge of the gear is always consistent, making the tooth edge and the tooth groove edge of the chamfered gear smoother.

[0014] 2. In the present invention, by loosening the upper and lower locking bolts, since the end of the locking bolt does not contact the outer wall of the key sleeve at this time, the adjusting sleeve can slide up and down along the outer wall of the key sleeve, further driving the chamfering cutter head to move together, realizing the adjustment of the distance between the upper and lower chamfering cutter heads, and can be applicable to the chamfering processing of gears with different widths.

[0015] 3. In the present invention, by adjusting the angles of the upper and lower path guides through the adjusting unit, the mechanism can be used for the chamfering processing of spur gears and different pointed-tooth gears, with a relatively wide overall application range and strong functionality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the left front view of the present invention; Figure 2 is a schematic structural diagram of the left side view in the present invention; Figure 3 is a schematic structural diagram of the right rear view in the present invention; Figure 4 is a schematic structural diagram of the chamfering unit in the present invention; Figure 5 is a schematic diagram of the detailed structure of the chamfering unit in the present invention; Figure 6 is a schematic cross-sectional structural diagram of the key sleeve and the adjusting sleeve in the present invention; Figure 7 In the present invention Figure 6 is an enlarged structural diagram of part A; Figure 8 is a schematic structural diagram of the adjusting unit in the present invention; Figure 9 In the present invention Figure 8 is a schematic diagram of the partial structure; Figure 10 In the present invention Figure 9 is an enlarged structural diagram of part B.

[0017] In the figure: 100, floating unit; 101, floating plate; 102, front cross beam; 103, end plate; 104, servo motor; 105, ball screw; 106, ball nut; 107, linear guide; 108, linear slider; 109, rear cross beam; 200, chamfering unit; 201, connecting plate; 202, key shaft; 203, key sleeve; 204, adjusting sleeve; 205, chamfering cutter head; 206, locking bolt; 207, driven gear; 208, power dividing shaft; 209, driving gear; 2010, driven synchronous pulley; 2011, power motor; 2012, driving synchronous pulley; 2013, synchronous belt; 2014, ring groove wheel; 2015, fork; 2016, right angle block; 2017, pin; 2018, guide wheel; 2019, positioning pin; 2020, path guide; 2021, guide hole; 2022, guide rod; 300, adjusting unit; 301, fixed seat; 302, adjusting stud; 303, adjusting bracket; 304, sliding pin; 305, adjusting block; 306, inclined groove; 307, guide post. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1 to 10 , the technical solutions provided by the present invention specifically include the following embodiments: A chamfering mechanism for precision gear processing includes a floating unit 100, a chamfering unit 200 and an adjusting unit 300. The floating unit 100 is fixedly installed through a fixed bracket. The chamfering unit 200 is fixedly arranged on the surface of the floating unit 100 for chamfering precision gears. The adjusting unit 300 is fixedly arranged on the surface of the floating unit 100 for adjusting the chamfering angle of the chamfering unit 200.

[0020] Further, specifically referring to Figure 3 as shown: The floating unit 100 includes a floating plate 101, a front cross beam 102, end plates 103, a servo motor 104, a ball screw 105, a ball nut 106, linear guide rails 107, linear sliders 108 and a rear cross beam 109. The floating plate 101 is slidably arranged on the front of the front cross beam 102. The end plates 103 are fixedly installed at the left and right ends of the back of the front cross beam 102. The servo motor 104 is fixedly installed on the outer surface of one of the end plates 103. The ball screw 105 is rotatably installed between the left and right end plates 103 and is connected to the output shaft of the servo motor 104 through a coupling. The ball nut 106 is fixedly installed in the middle of the back of the floating plate 101 and is threadedly connected to the ball screw 105. The linear guide rails 107 are fixedly installed on the back of the front cross beam 102. The linear sliders 108 are slidably installed on the periphery of the linear guide rails 107 and are fixedly connected to the front of the floating plate 101 through bolts. The rear cross beam 109 is fixedly installed on the side surfaces of the left and right end plates 103 away from the front cross beam 102.

[0021] Specifically, the parameters of this structure are set according to the module and number of teeth of the gear. The servo motor 104 continuously adjusts the rotation angle and rotation direction of the output shaft according to the parameters set by the computer, thereby driving the synchronous rotation of the ball screw 105, causing the ball nut 106 to perform corresponding tracking movement along the axial direction of the ball screw 105, thereby driving the floating plate 101 and the chamfering unit 200 as a whole to move together, so that the chamfering unit 200 grinds the chamfer along the tooth edge of the gear. At the same time, the movement of the floating plate 101 through the sliding connection between the linear slider 108 and the linear guide rail 107 makes the movement accuracy of the floating plate 101 higher and the stability better.

[0022] Further, specifically refer to Figures 4 to 7 as shown: The chamfering unit 200 includes a connecting plate 201, a key shaft 202, a key sleeve 203, an adjusting sleeve 204, a chamfering cutter head 205, a locking bolt 206, a driven gear 207, a power dividing shaft 208, a driving gear 209, a driven synchronous pulley 2010, a power motor 2011, a driving synchronous pulley 2012, a synchronous belt 2013, a ring groove pulley 2014, a fork 2015, a right-angle block 2016, a shaft pin 2017, a guide wheel 2018, a positioning pin 2019, a path guide rail 2020, a guide hole 2021 and a guide rod 2022. The connecting plate 201 is fixedly installed on the front surface of the floating plate 101 in an up-and-down distribution. The key shafts 202 are respectively rotatably installed inside the connecting plate 201 and penetrate through the top and bottom of the connecting plate 201, and the number is two. The key sleeves 203 are respectively slidably installed at one end of the outer walls of the two key shafts 202 close to each other. The adjusting sleeves 204 are respectively slidably installed on the outer walls of the two key sleeves 203. The chamfering cutter head 205 is fixedly installed at one end of the upper and lower adjusting sleeves 204 close to each other. The chamfering cutter head 205 is used for chamfering precision gears. The driven gears 207 are respectively fixedly installed at one end of the outer walls of the two key shafts 202 far from each other. The power dividing shaft 208 is rotatably installed between the upper and lower connecting plates 201 and penetrates through the top and bottom of the upper and lower connecting plates 201. The driving gears 209 are fixedly installed on the upper and lower parts of the outer wall of the power dividing shaft 208. The driving gears 209 are respectively meshed with the upper and lower driven gears 207. The driven synchronous pulley 2010 is fixedly installed on the upper part of the outer wall of the power dividing shaft 208. The power motor 2011 is fixedly installed on the upper part of the back surface of the floating plate 101. The driving synchronous pulley 2012 is fixedly installed on the output shaft of the power motor 2011. The synchronous belt 2013 is sleeved around the outer periphery of the driven synchronous pulley 2010 and the driving synchronous pulley 2012. The ring groove pulleys 2014 are respectively fixedly installed at one end of the outer parts of the two key sleeves 203 far from each other. The forks 2015 are respectively movably sleeved in the ring grooves of the upper and lower ring groove pulleys 2014. The right-angle blocks 2016 are fixedly installed on one side surface of the upper and lower forks 2015 close to each other, and the right-angle blocks 2016 are located at one end of the surface of the forks 2015 far from the ring groove pulleys 2014. The shaft pins 2017 are fixedly installed at one end of the back surfaces of the upper and lower right-angle blocks 2016 close to each other. The guide wheels 2018 are respectively rotatably installed on the outer walls of the upper and lower shaft pins 2017. The positioning pins 2019 are fixedly installed on the left end of the front surface of the front cross beam 102 in an up-and-down distribution. The path guide rails 2020 are respectively rotatably installed on the outer walls of the upper and lower positioning pins 2019. The upper and lower guide wheels 2018 are respectively slidably installed in the path grooves of the upper and lower path guide rails 2020.

[0023] Specifically, the servo motor 104 continuously adjusts the rotation angle and direction of the output shaft according to the parameters set by the computer, driving the ball screw 105 to rotate synchronously, causing the ball nut 106 to perform corresponding tracing movement along the axial direction of the ball screw 105, thereby driving the floating plate 101 and the chamfering unit 200 to move together. At the same time, the output shaft of the power motor 2011 drives the active synchronous pulley 2012 to rotate, and under the torque transmission of the synchronous belt 2013 and the driven synchronous pulley 2010, drives the dividing shaft 208 and two active gears 209 fixed on the outer wall of the dividing shaft 208 to rotate. The rotation of the two active gears 209 drives the upper and lower driven gears 207 and two key shafts 202 to rotate inside the two connecting plates 201. Further, under the connection action of the upper and lower key sleeves 203 and the upper and lower adjusting sleeves 204, the upper and lower chamfering cutters 205 are driven to rotate, enabling the two chamfering cutters 205 to grind chamfers along the tooth edges of the gears. On the one hand, synchronous chamfering of both sides of the gear is achieved, and due to the symmetrically arranged upper and lower chamfering cutters 205, it can ensure that the angle with the tooth edge of the gear is always consistent, making the tooth edges and tooth groove edges of the chamfered gear smoother.

[0024] Furthermore, the locking bolt 206 is screwed inside the side wall of the adjusting sleeve 204, and the end of the locking bolt 206 abuts against the outer wall of the key sleeve 203. By loosening the upper and lower locking bolts 206, at this time, since the end of the locking bolt 206 does not contact the outer wall of the key sleeve 203, the adjusting sleeve 204 can be slid up and down along the outer wall of the key sleeve 203, further driving the chamfering cutter 205 to move together, realizing the adjustment of the distance between the upper and lower chamfering cutters 205. After adjusting the distance between the upper and lower chamfering cutters 205, tighten the locking bolt 206 again to lock the adjusting sleeve 204 and the key sleeve 203 again to prevent unnecessary movement of the chamfering cutter 205.

[0025] Further, specifically refer to Figure 9 、 Figure 10 as shown in: The adjusting unit 300 includes a fixed seat 301, an adjusting stud 302, an adjusting bracket 303, a sliding pin 304, an adjusting block 305, an inclined slot 306 and a guide post 307. The fixed seat 301 is fixedly installed at the right end of the front surface of the front cross beam 102, and the number thereof is two. The two fixed seats 301 are arranged parallel to each other left and right, and the two fixed seats 301 are located between the upper and lower path guide rails 2020. The adjusting stud 302 is rotatably installed inside one of the fixed seats 301 at the right end, and penetrates through the left side surface and the right side surface of the fixed seat 301. The adjusting bracket 303 is threadedly connected to the periphery of the adjusting stud 302. The sliding pins 304 are fixedly installed on the back surface of the adjusting bracket 303 in an up-and-down distribution. The adjusting blocks 305 are fixedly installed at the right end of the bottom of the two path guide rails 2020 in an up-and-down symmetric distribution. The inclined slots 306 are respectively formed through the front surfaces of the upper and lower adjusting blocks 305. The upper and lower inclined slots 306 are symmetrically arranged, and the inner walls of the upper and lower inclined slots 306 are respectively slidably connected to the upper and lower sliding pins 304. The guide posts 307 are fixedly installed between the left and right fixed seats 301 in an up-and-down distribution. The adjusting bracket 303 is slidably installed on the peripheries of the upper and lower guide posts 307.

[0026] Specifically, when chamfering the sharp-tooth precision gear, according to the inclination angle of the sharp tooth of the gear, the angles of the upper and lower path guides 2020 are adjusted. By rotating the adjusting stud 302 to generate a threaded thrust effect, the adjusting bracket 303 moves along the axial direction of the adjusting stud 302. And through the guiding action of the upper and lower guide posts 307 on the adjusting bracket 303, the moving precision of the adjusting bracket 303 can be higher and the moving stability can be better. When the adjusting bracket 303 moves, it will drive the upper and lower sliding pins 304 to move together. Thus, under the sliding connection with the upper and lower inclined slots 306, a reverse wedge force is generated on the upper and lower adjusting blocks 305, so that the upper and lower adjusting blocks 305 push the upper and lower path guides 2020 to rotate a certain angle away from each other along the upper and lower positioning pins 2019 until the angles of the two path guides 2020 are adapted to the inclination angle of the sharp tooth of the gear. Subsequently, the servo motor 104 continuously adjusts the rotation angle and rotation direction of the output shaft according to the parameters set by the computer, so that the chamfering unit 200 moves in a tracking manner. The two guide wheels 2018 in the chamfering unit 200 slide inside the path grooves of the upper and lower path guides 2020. And under the connection action of the upper and lower pivot pins 2017, the right-angle blocks 2016 and the fork 2015, the upper and lower ring groove wheels 2014 are driven to move along the path direction of the path guide 2020, and then drive the upper and lower key sleeves 203 to move upward or downward along the outer walls of the upper and lower key shafts 202. Finally, the upper and lower adjusting sleeves 204 and the chamfering tool heads 205 are driven by the upper and lower key sleeves 203 to move along the path angle of the path guide 2020 together, so as to adapt to the chamfering processing of the high-precision sharp-tooth gear. When processing the spur gear, similarly, by rotating the adjusting stud 302, finally the upper and lower path guides 2020 are made parallel. Therefore, during the movement of the two guide wheels 2018 along the path grooves of the two path guides 2020, the distance between the upper and lower chamfering tool heads 205 does not change, so that the spur gear can be chamfered, and the functionality is relatively strong.

[0027] When a chamfering mechanism for precision gear processing in this solution is working, as shown in the attached Figure 1 description of the specification, the precision gear to be chamfered is placed in the front of this structure through a gripping device. The gripping mechanism is a rotatable electric gripper mechanism, but it is not limited to this, which belongs to the prior art and the specific principle will not be elaborated in detail; When chamfering this device, it can be divided into chamfering of spur precision gears and chamfering of sharp-tooth precision gears: When chamfering a straight-tooth precision gear, first, set the parameters of this structure according to the module and number of teeth of the gear. After clamping the inner wall of the gear's shaft hole with a gripping device and driving the gear to rotate slowly, at the same time, the output shaft of the power motor 2011 drives the active synchronous pulley 2012 to rotate. And under the torque transmission of the synchronous belt 2013 and the driven synchronous pulley 2010, the transfer shaft 208 together with the two active gears 209 fixed on the outer wall of the transfer shaft 208 rotates. The rotation of the two active gears 209 drives the upper and lower driven gears 207 and the two key shafts 202 to rotate inside the two connecting plates 201. Further, under the connection of the upper and lower key sleeves 203 and the upper and lower adjusting sleeves 204, the upper and lower chamfering tool heads 205 are driven to rotate. During this period, the servo motor 104 continuously adjusts the rotation angle and rotation direction of the output shaft according to the parameters set by the computer, thereby driving the ball screw 105 to rotate synchronously, causing the ball nut 106 to perform corresponding tracking movement along the axial direction of the ball screw 105, thereby driving the floating plate 101 and the chamfering unit 200 as a whole to move together, so that the two chamfering tool heads 205 in the chamfering unit 200 grind the chamfer along the tooth edge of the gear. On the one hand, synchronous chamfering of both sides of the gear is achieved. And because the axes of the symmetrically arranged upper and lower chamfering tool heads 205 are parallel to the axis of the gear, it can ensure that the angle with the tooth edge of the gear is always consistent, making the tooth edge and tooth groove edge of the chamfered gear smoother. At the same time, the movement of the floating plate 101 through the sliding connection of the linear slider 108 and the linear guide rail 107 makes the movement of the floating plate 101 have higher precision and better stability; When chamfering the sharp-tooth precision gear, first, according to the oblique angle of the sharp teeth of the gear, the angles of the upper and lower path guides 2020 are adjusted. Specifically, by rotating the adjusting stud 302 to generate a thread thrust effect, the adjusting bracket 303 moves along the axial direction of the adjusting stud 302. And through the precise guiding effect of the upper and lower guide posts 307 on the adjusting bracket 303, the moving precision of the adjusting bracket 303 can be higher and the moving stability can be better. When the adjusting bracket 303 moves, it will drive the upper and lower sliding pins 304 to move together. Thus, under the sliding connection with the upper and lower inclined grooves 306, a reverse wedge force is generated on the upper and lower adjusting blocks 305, so that the upper and lower adjusting blocks 305 push the upper and lower path guides 2020 to rotate a certain angle away from each other along the upper and lower positioning pins 2019 until the angles of the two path guides 2020 match the oblique angle of the sharp teeth of the gear. Subsequently, similar to the principle of chamfering the straight-tooth precision gear, the servo motor 104 continuously adjusts the rotation angle and rotation direction of the output shaft according to the parameters set by the computer, thereby driving the chamfering unit 200 to move along the track. The two guide wheels 2018 in the chamfering unit 200 slide inside the path grooves of the upper and lower path guides 2020. And under the connection action of the upper and lower pivot pins 2017, the right-angle block 2016 and the fork 2015, the upper and lower ring groove wheels 2014 are driven to move along the path direction of the path guide 2020, and further drive the upper and lower key sleeves 203 to move up or down along the outer walls of the upper and lower key shafts 202. Finally, the upper and lower key sleeves 203 drive the upper and lower adjusting sleeves 204 and the chamfering tool heads 205 to move along the path angle of the path guide 2020 together, so as to adapt to the chamfering processing of the high-precision sharp-tooth type gear. In this mechanism, the distance between the upper and lower chamfering tool heads 205 can also be adjusted according to the width of the gear to be processed. Specifically, by loosening the upper and lower locking bolts 206, at this time, since the end of the locking bolt 206 does not contact the outer wall of the key sleeve 203, the adjusting sleeve 204 can slide up and down along the outer wall of the key sleeve 203, further driving the chamfering tool head 205 to move together, realizing the adjustment of the distance between the upper and lower chamfering tool heads 205. After adjusting the distance between the upper and lower chamfering tool heads 205, tighten the locking bolts 206 again to lock the adjusting sleeve 204 and the key sleeve 203 again to prevent unnecessary movement of the chamfering tool head 205.

[0028] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention.

Claims

1. A chamfering mechanism for precision gear processing, characterized in that: Comprising: A floating unit (100), fixedly installed by a fixed bracket; A chamfering unit (200), fixedly arranged on the surface of the floating unit (100) for precision gear chamfering; An adjusting unit (300), fixedly arranged on the surface of the floating unit (100) for adjusting the chamfering angle of the chamfering unit (200).

2. The chamfering mechanism for precision gear processing according to claim 1, characterized in that: The floating unit (100) includes: A floating plate (101) and a front cross beam (102), the floating plate (101) is slidably arranged on the front of the front cross beam (102); End plates (103), fixedly installed at the left and right ends of the back of the front cross beam (102); A servo motor (104), fixedly installed on the outer surface of one of the end plates (103); A ball screw (105), rotatably installed between the left and right end plates (103) and connected to the output shaft of the servo motor (104) through a coupling; A ball nut (106), fixedly installed in the middle of the back of the floating plate (101) and threadedly connected to the ball screw (105).

3. The chamfering mechanism for precision gear processing according to claim 2, characterized in that: The chamfering unit (200) includes: Connecting plates (201), fixedly installed on the front of the floating plate (101) in an up-and-down distribution; Key shafts (202), respectively rotatably installed inside the connecting plates (201), passing through the top and bottom of the connecting plates (201), and the number is two; Key sleeves (203), respectively slidably installed at one end of the outer walls of the two key shafts (202) close to each other; Adjusting sleeves (204), respectively slidably installed on the outer walls of the two key sleeves (203); Chamfering cutters (205), fixedly installed at one end of the upper and lower adjusting sleeves (204) close to each other, and the chamfering cutters (205) are used for precision gear chamfering.

4. The chamfering mechanism for precision gear processing according to claim 3, characterized in that: The chamfering unit (200) further includes: Driven gears (207), respectively fixedly installed at one end of the outer walls of the upper and lower key shafts (202) far from each other; A sub-driving shaft (208), rotatably installed between the upper and lower connecting plates (201) and passing through the top and bottom of the upper and lower connecting plates (201); Driving gears (209), fixedly installed on the upper and lower parts of the outer wall of the sub-driving shaft (208), and the driving gears (209) are respectively meshed with the upper and lower driven gears (207); Driven synchronous pulleys (2010), fixedly installed on the upper part of the outer wall of the sub-driving shaft (208); A power motor (2011), fixedly installed on the upper part of the back of the floating plate (101); A driving synchronous pulley (2012), fixedly installed on the output shaft of the power motor (2011); A synchronous belt (2013), sleeved around the driven synchronous pulley (2010) and the driving synchronous pulley (2012).

5. The chamfering mechanism for precision gear processing according to claim 4, characterized in that: The chamfering unit (200) further includes: The ring groove wheels (2014) are respectively fixedly installed at the far ends of the outer sides of the upper and lower key sleeves (203). The fork levers (2015) are respectively movably sleeved in the ring grooves of the upper and lower ring groove wheels (2014). The right-angle blocks (2016) are fixedly installed on the closer side surfaces of the upper and lower fork levers (2015), and the right-angle blocks (2016) are located at the ends of the surfaces of the fork levers (2015) far from the ring groove wheels (2014). The shaft pins (2017) are fixedly installed at the closer ends of the back surfaces of the upper and lower right-angle blocks (2016). The guide wheels (2018) are respectively rotatably installed on the outer walls of the upper and lower shaft pins (2017).

6. The chamfering mechanism for precision gear processing according to claim 5, wherein: The chamfering unit (200) further includes: The positioning pins (2019) are fixedly installed at the left end of the front surface of the front cross beam (102) in an up-and-down distribution. The path guide rails (2020) are respectively rotatably installed on the outer walls of the upper and lower positioning pins (2019), and the upper and lower guide wheels (2018) are respectively slidably installed in the path grooves of the upper and lower path guide rails (2020).

7. The chamfering mechanism for precision gear processing according to claim 6, wherein: The adjusting unit (300) includes: The fixed seats (301) are fixedly installed at the right end of the front surface of the front cross beam (102), and the number is two. The two fixed seats (301) are arranged in parallel left and right, and the two fixed seats (301) are located between the upper and lower path guide rails (2020). The adjusting stud (302) is rotatably installed inside one of the fixed seats (301) at the right end, and penetrates through the left side surface and the right side surface of the fixed seat (301). The adjusting bracket (303) is threadedly connected to the periphery of the adjusting stud (302). The sliding pins (304) are fixedly installed at the back surface of the adjusting bracket (303) in an up-and-down distribution. The adjusting blocks (305) are fixedly installed at the right bottom ends of the two path guide rails (2020) in an up-and-down symmetric distribution. The inclined grooves (306) are respectively formed through the front surfaces of the upper and lower adjusting blocks (305). The upper and lower inclined grooves (306) are symmetrically arranged, and the inner walls of the upper and lower inclined grooves (306) are respectively slidably connected to the upper and lower sliding pins (304).

8. The chamfering mechanism for precision gear processing according to claim 7, wherein: The floating unit (100) further includes: The linear guide rail (107) is fixedly installed on the back surface of the front cross beam (102). The linear slider (108) is slidably installed on the periphery of the linear guide rail (107), and is fixedly connected to the front surface of the floating plate (101) through bolts. The rear cross beam (109) is fixedly installed on the side surfaces of the left and right end plates (103) far from the front cross beam (102).

9. The chamfering mechanism for precision gear processing according to claim 8, wherein: The chamfering unit (200) further includes: The locking bolt (206) is screwed inside the side wall of the adjusting sleeve (204), and the end of the locking bolt (206) abuts against the outer wall of the key sleeve (203); The guiding hole (2021) is formed through the top of the fork (2015); The guiding rods (2022) are fixedly installed on the opposite surfaces of the upper and lower connecting plates (201). The outer walls of the upper and lower guiding rods (2022) are respectively slidably connected to the inner walls of the upper and lower guiding holes (2021).

10. The chamfering mechanism for precision gear processing according to claim 9, wherein: The adjusting unit (300) further includes: The guide posts (307) are fixedly installed between the left and right fixed seats (301) in an up-and-down distribution, and the adjusting bracket (303) is slidably installed around the upper and lower guide posts (307).

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