A chamfering mechanism for precision gear machining

Abstract

This invention relates to the field of gear processing technology, specifically to a chamfering mechanism for precision gear processing. The mechanism includes a floating unit, a chamfering unit, and an adjusting unit. The floating unit is fixedly mounted via a fixed bracket, and the chamfering unit and adjusting unit are fixedly mounted on the surface of the floating unit. Two chamfering cutters, arranged vertically and horizontally, can simultaneously chamfer the upper and lower edges of the gear teeth, improving the chamfering efficiency of a single gear. Furthermore, since the axis of the chamfering cutter is parallel to the axis of the gear, the angle with the gear tooth edge remains consistent, resulting in smoother tooth edges and groove edges after chamfering. The adjusting unit sets the angles of the upper and lower path guides, allowing the mechanism to be used for chamfering spur gears and various types of pointed gears. Overall, it has a wide range of applications and strong functionality.

Description

Technical Field

[0001] This invention relates to the field of gear processing technology, specifically to a chamfering mechanism for precision gear processing. Background Technology

[0002] Gears are mechanical parts typically used to transmit power and motion. Gear chamfering refers to the chamfering of 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 gears rotate more smoothly when meshing and reduce the possibility of damage or breakage caused by sharp edges.

[0003] Referring to a Chinese patent application with application number 202411114368.0, a gear cyclic chamfering device is disclosed. The flipping drive component flips the gear workpiece, which facilitates chamfering of the tooth grooves at the bottom of the gear workpiece. It eliminates the need for operators to release and use clamping rods and springs to clamp and fix the gear workpiece, saving cumbersome operation steps and improving the chamfering and grinding effect of the gear workpiece. However, when chamfering gears, this device cannot simultaneously chamfer both sides of the gear, 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 the tooth edge is consistent at all points during the rotation, resulting in an uneven chamfer on the gear processing surface. Therefore, we propose a chamfering mechanism for precision gear processing to solve the above-mentioned technical problems. Summary of the Invention

[0004] This invention provides the following technical solution: a chamfering mechanism for precision gear machining, comprising:

[0005] The floating unit is fixedly installed using a fixed bracket;

[0006] A chamfering unit is fixedly mounted on the surface of the floating unit and is used for chamfering precision gears;

[0007] The adjustment unit is fixedly mounted on the surface of the floating unit and is used to adjust the chamfer angle of the chamfering unit.

[0008] As a preferred embodiment of the present invention, the floating unit includes:

[0009] A floating plate and a front crossbeam, wherein the floating plate is slidably disposed on the front side of the front crossbeam;

[0010] End plates are fixedly installed on the left and right ends of the back of the front crossbeam;

[0011] The servo motor is fixedly mounted on the outer surface of one of the end plates.

[0012] The ball screw is rotatably mounted between the left and right end plates and is connected to the output shaft of the servo motor via a coupling;

[0013] The ball nut is fixedly installed in the middle of the back of the floating plate and is threaded to the ball screw.

[0014] As a preferred embodiment of the present invention, the chamfering unit includes:

[0015] Connecting plates are fixedly installed on the front of the floating plate, distributed vertically.

[0016] Two key shafts are rotatably installed inside the connecting plate and pass through the top and bottom of the connecting plate.

[0017] Key sleeves are slidably mounted on the adjacent ends of the outer walls of the two key shafts;

[0018] Adjustment sleeves are slidably mounted on the outer walls of the two key sleeves respectively;

[0019] A chamfering cutter head is fixedly installed at one end of the upper and lower adjusting sleeves that are close to each other. The chamfering cutter head is used for chamfering precision gears.

[0020] As a preferred embodiment of the present invention, the chamfering unit further includes:

[0021] Driven gears are fixedly installed on opposite ends of the outer walls of the upper and lower key shafts, respectively.

[0022] The transfer shaft is rotatably installed between the upper and lower connecting plates and passes through the top and bottom of the upper and lower connecting plates;

[0023] The driving gear is fixedly installed on the upper and lower parts of the outer wall of the transfer shaft, and the driving gear meshes with the upper and lower driven gears respectively;

[0024] The driven synchronous pulley is fixedly installed on the upper part of the outer wall of the transfer shaft;

[0025] The power motor is fixedly installed on the upper part of the back of the floating plate;

[0026] The active synchronizing pulley is fixedly mounted on the output shaft of the power motor.

[0027] The timing belt is fitted around the driven and driving timing pulleys.

[0028] As a preferred embodiment of the present invention, the chamfering unit further includes:

[0029] The annular groove wheel is fixedly installed on the outer ends of the upper and lower key sleeves, respectively, at the far ends.

[0030] The shift forks are respectively movably fitted into the annular grooves of the upper and lower annular groove wheels;

[0031] A right-angled block is fixedly installed on one side of the upper and lower shift forks that are close to each other, and the right-angled block is located at the end of the shift fork surface away from the annular groove wheel;

[0032] A pivot pin is fixedly installed on one end of the back of the two right-angled blocks that are close to each other.

[0033] The guide wheels are rotatably mounted on the outer walls of the upper and lower axle pins.

[0034] As a preferred embodiment of the present invention, the chamfering unit further includes:

[0035] Positioning pins are fixedly installed on the left end of the front crossbeam, distributed vertically.

[0036] The path guide rails are rotatably mounted on the outer walls of the upper and lower positioning pins, and the upper and lower guide wheels are slidably mounted in the path grooves of the upper and lower path guide rails.

[0037] As a preferred embodiment of the present invention, the adjustment unit includes:

[0038] Two fixed seats are fixedly installed on the right side of the front crossbeam. The two fixed seats are arranged in parallel left and right and are located between the upper and lower path guide rails.

[0039] The adjusting stud is rotatably installed inside a fixed base located at the right end, and extends through the left and right sides of the fixed base;

[0040] The adjusting bracket is threaded onto the outer side of the adjusting stud;

[0041] Sliding pins are fixedly installed on the back of the adjusting bracket, distributed vertically.

[0042] The adjusting blocks are symmetrically distributed and fixedly installed at the bottom right end of the two path guide rails;

[0043] Inclined grooves are respectively opened through the front 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 slidably connected to the upper and lower sliding pins respectively.

[0044] As a preferred embodiment of the present invention, the floating unit further includes:

[0045] Linear guide rails are fixedly installed on the back of the front crossbeam;

[0046] The linear slider is slidably mounted on the periphery of the linear guide rail and is fixedly connected to the front of the floating plate by bolts;

[0047] The rear crossbeam is fixedly installed on the side of the left and right end plates away from the front crossbeam.

[0048] As a preferred embodiment of the present invention, the chamfering unit further includes:

[0049] A locking bolt is screwed into the inside of the side wall of the adjusting sleeve, and the end of the locking bolt abuts against the outer wall of the key sleeve.

[0050] A guide hole is formed through the top of the shift fork;

[0051] Guide rods are fixedly installed on the opposite surfaces of the upper and lower connecting plates, and the outer walls of the upper and lower guide rods are slidably connected to the inner walls of the upper and lower guide holes, respectively.

[0052] As a preferred embodiment of the present invention, the adjustment unit further includes:

[0053] The guide posts are fixedly installed between the two fixed seats on the left and right sides, and the adjusting bracket is slidably installed on the periphery of the two guide posts.

[0054] Compared with the prior art, the beneficial effects of the present invention are:

[0055] 1. In this invention, two chamfering cutters arranged vertically opposite each other can simultaneously chamfer the upper and lower edges of the gear teeth, 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, the angle with the gear tooth edge can always be consistent, making the edges of the teeth and the tooth grooves of the gear smoother after chamfering.

[0056] 2. In this invention, by loosening the upper and lower locking bolts, since the ends of the locking bolts do not contact the outer wall of the key sleeve, 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, thereby realizing the adjustment of the distance between the upper and lower chamfering cutter heads, which can be applied to the chamfering processing of gears of different widths.

[0057] 3. In this invention, by adjusting the angle of the upper and lower path guides, the mechanism can be used for chamfering of spur gears and different pointed gears, with a wide range of applications and strong functionality. Attached Figure Description

[0058] Figure 1 This is a schematic diagram of the left front view structure of the present invention;

[0059] Figure 2 This is a schematic diagram of the structure from the left side of the present invention;

[0060] Figure 3 This is a schematic diagram of the structure from the right rear view in this invention;

[0061] Figure 4 This is a schematic diagram of the chamfer unit in this invention;

[0062] Figure 5 This is a detailed structural diagram of the chamfer unit in this invention;

[0063] Figure 6 This is a cross-sectional view of the key sleeve and adjusting sleeve in this invention;

[0064] Figure 7 In this invention Figure 6 A magnified structural diagram of part A;

[0065] Figure 8 This is a schematic diagram of the structure of the adjustment unit in this invention;

[0066] Figure 9 In this invention Figure 8 A partial structural diagram;

[0067] Figure 10 In this invention Figure 9 A magnified structural diagram of part B.

[0068] In the diagram: 100, Floating unit; 101, Floating plate; 102, Front crossbeam; 103, End plate; 104, Servo motor; 105, Ball screw; 106, Ball nut; 107, Linear guide; 108, Linear slider; 109, Rear crossbeam; 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, Transfer shaft; 209, Drive gear; 2010. Driven synchronous pulley; 2011, power motor; 2012, driving synchronous pulley; 2013, synchronous belt; 2014, annular groove pulley; 2015, shift fork; 2016, right-angle block; 2017, shaft pin; 2018, guide wheel; 2019, positioning pin; 2020, path guide rail; 2021, guide hole; 2022, guide rod; 300, adjusting unit; 301, fixed base; 302, adjusting stud; 303, adjusting bracket; 304, sliding pin; 305, adjusting block; 306, inclined groove; 307, guide post. Detailed Implementation

[0069] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0070] Please see Figures 1-10 The technical solution provided by the present invention specifically includes the following embodiments:

[0071] A chamfering mechanism for precision gear machining includes a floating unit 100, a chamfering unit 200, and an adjusting unit 300. The floating unit 100 is fixedly installed by a fixed bracket. The chamfering unit 200 is fixedly disposed on the surface of the floating unit 100 for chamfering precision gears. The adjusting unit 300 is fixedly disposed on the surface of the floating unit 100 for adjusting the chamfering angle of the chamfering unit 200.

[0072] For further details, please refer to [link / reference]. Figure 3 As shown:

[0073] The floating unit 100 includes a floating plate 101, a front crossbeam 102, an end plate 103, a servo motor 104, a ball screw 105, a ball nut 106, a linear guide rail 107, a linear slider 108, and a rear crossbeam 109. The floating plate 101 is slidably disposed on the front side of the front crossbeam 102. The end plates 103 are fixedly installed on the left and right ends of the back side of the front crossbeam 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 mounted on the left and right end plates. Between 103, and connected to the output shaft of servo motor 104 via a coupling, ball nut 106 is fixedly installed in the middle of the back of floating plate 101 and threadedly connected to ball screw 105, linear guide 107 is fixedly installed on the back of front crossbeam 102, linear slider 108 is slidably installed on the periphery of linear guide 107 and fixedly connected to the front of floating plate 101 via bolts, and rear crossbeam 109 is fixedly installed on the side of left and right end plates 103 away from front crossbeam 102.

[0074] 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 direction of the output shaft according to the parameters set by the computer, thereby driving the ball screw 105 to rotate synchronously. This causes the ball nut 106 to move along the axial direction of the ball screw 105, thereby driving the floating plate 101 and the chamfering unit 200 to move together. This allows the chamfering unit 200 to grind and chamfer along the edge of the gear teeth. At the same time, the movement of the floating plate 101 is achieved through the sliding connection between the linear slider 108 and the linear guide rail 107, resulting in high accuracy and good stability of the movement of the floating plate 101.

[0075] For further details, please refer to [link / reference]. Figures 4-7 As shown:

[0076] 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 transfer 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 grooved ring pulley 2014, a shift 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 vertically on the front of the floating plate 101, and the key shaft 202 rotates... Two key sleeves 203 are slidably mounted inside the connecting plate 201, penetrating the top and bottom of the connecting plate 201. Adjusting sleeves 204 are slidably mounted on the outer walls of the two key sleeves 203. A chamfering cutter 205 is fixedly mounted on the upper and lower adjusting sleeves 204, near each other, and is used for precision gear chamfering. Driven gears 207 are fixedly mounted on the outer walls of the upper and lower key shafts 202, far apart from each other. A transfer shaft 208 is rotatably mounted between the upper and lower connecting plates 201, penetrating the top and bottom of both connecting plates 201. The driving gear 2... 09 is fixedly installed on the upper and lower parts of the outer wall of the transfer shaft 208. The driving gear 209 meshes with the upper and lower driven gears 207 respectively. The driven synchronous pulley 2010 is fixedly installed on the upper part of the outer wall of the transfer shaft 208. The power motor 2011 is fixedly installed on the upper part of the back 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 driven synchronous pulley 2010 and the driving synchronous pulley 2012. The annular groove pulleys 2014 are fixedly installed on the outer ends of the upper and lower key sleeves 203 respectively. The shift fork 2015 is movably sleeved in the annular grooves of the upper and lower annular groove pulleys 2014 respectively. Inside, a right-angle block 2016 is fixedly installed on one side of the upper and lower shift forks 2015 that are close to each other, and the right-angle block 2016 is located at the end of the shift fork 2015 that is away from the ring groove wheel 2014. A shaft pin 2017 is fixedly installed on one side of the back of the upper and lower right-angle blocks 2016 that are close to each other. Guide wheels 2018 are rotatably installed on the outer wall of the upper and lower shaft pins 2017 respectively. Positioning pins 2019 are fixedly installed on the left side of the front of the front crossbeam 102, and path guide rails 2020 are rotatably installed on the outer wall of the upper and lower positioning pins 2019 respectively. The upper and lower guide wheels 2018 are slidably installed in the path grooves of the upper and lower path guide rails 2020 respectively.

[0077] 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. This causes the ball nut 106 to move 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 driving synchronous pulley 2012 to rotate, and under the torque transmission between the synchronous belt 2013 and the driven synchronous pulley 2010, it drives the transfer shaft 208 together with the two driving gears 2 fixed on the outer wall of the transfer shaft 208. 09 rotates, and the rotation of the two driving gears 209 drives the upper and lower driven gears 207 and the two key shafts 202 to rotate inside the two connecting plates 201. Furthermore, under the connection 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, so that the two chamfering cutters 205 grind and chamfer along the tooth edge of the gear. On the one hand, it realizes the synchronous chamfering of both sides of the gear, and on the other hand, due to the symmetrical arrangement of the chamfering cutters 205, it can ensure that the angle with the tooth edge of the gear is always consistent, so that the tooth edge and tooth groove edge of the gear are smoother after chamfering.

[0078] Furthermore, the locking bolt 206 is screwed into the inside of 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, since the ends of the locking bolts 206 do 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 cutter head 205 to move together, thereby adjusting the distance between the upper and lower chamfering cutter heads 205. After adjusting the distance between the upper and lower chamfering cutter heads 205, the locking bolt 206 is tightened again to lock the adjusting sleeve 204 and the key sleeve 203 again, so as to prevent unnecessary movement of the chamfering cutter head 205.

[0079] For further details, please refer to [link / reference]. Figure 9 , Figure 10 As shown:

[0080] The adjustment unit 300 includes a fixed base 301, an adjusting stud 302, an adjusting bracket 303, a sliding pin 304, an adjusting block 305, an inclined groove 306, and a guide post 307. Two fixed bases 301 are fixedly installed on the right side of the front crossbeam 102, arranged parallel to each other and positioned between the upper and lower path guide rails 2020. The adjusting stud 302 is rotatably installed inside one of the fixed bases 301 located on the right end, penetrating both the left and right sides of the fixed base 301. The adjusting bracket 303 is threadedly connected to the adjusting block 305. The outer periphery of the stud 302, the sliding pins 304 are fixedly installed on the back of the adjusting bracket 303, the adjusting blocks 305 are fixedly installed on the bottom right end of the two path guide rails 2020, the inclined grooves 306 are respectively opened through the front 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, the guide posts 307 are fixedly installed between the left and right fixed seats 301, and the adjusting bracket 303 is slidably installed on the outer periphery of the upper and lower guide posts 307.

[0081] Specifically, when chamfering the precision gear with pointed teeth, the angles of the upper and lower path guides 2020 are adjusted according to the bevel angle of the gear's pointed teeth. Rotating the adjusting stud 302 generates a threaded thrust, causing the adjusting bracket 303 to move axially along the adjusting stud 302. The guiding effect of the upper and lower guide pins 307 on the adjusting bracket 303 improves its movement accuracy and stability. The movement of the adjusting bracket 303 then drives the upper and lower sliding pins 304 to move together. Through the sliding connection with the upper and lower inclined grooves 306, this generates a reverse wedge force on the upper and lower adjusting blocks 305, causing them to push the upper and lower path guides 2020 to rotate a certain angle along the upper and lower positioning pins 2019 until the angles of the two path guides 2020 match the bevel angle of the gear's pointed teeth. Subsequently, the servo motor 104 continuously adjusts the rotation angle and direction of the output shaft according to the parameters set by the computer, ensuring the chamfering unit 2... The chamfering unit 200 moves along the path grooves of the upper and lower path guide rails 2020. Under the connection of the upper and lower pins 2017, right-angle block 2016, and shift fork 2015, the upper and lower ring groove wheels 2014 move along the path direction of the path guide rails 2020, thereby causing the upper and lower key sleeves 203 to move upwards or downwards along the outer walls of the upper and lower key shafts 202. Ultimately, the upper and lower key sleeves 203 drive the upper and lower key shafts 202... The adjusting sleeve 204 and the chamfering cutter head 205 move together along the path angle of the path guide rail 2020 to adapt to the high-precision chamfering of the pointed tooth type gear. When machining spur gears, the adjusting stud 302 is rotated to make the upper and lower path guide rails 2020 parallel. Therefore, the distance between the upper and lower chamfering cutter heads 205 does not change during the movement of the two guide wheels 2018 along the path grooves of the two path guide rails 2020. This allows for the chamfering of spur gears and provides strong functionality.

[0082] This solution describes a chamfering mechanism for precision gear machining. When in operation, as per the instruction manual... Figure 1 As shown, the precision gear that needs to be chamfered is placed on the front of this structure by a gripping device. The gripping mechanism is a rotatable electric gripper mechanism, but it is not limited to this. It belongs to the prior art, and the specific principle will not be described in detail.

[0083] This device can be used for chamfering, specifically for spur precision gears and for chamfering pointed precision gears.

[0084] When chamfering a spur precision gear, firstly, the parameters of this structure are set according to the gear's module and number of teeth. After the gear's shaft hole is clamped by a gripping device, the gear is driven to rotate slowly. At the same time, the output shaft of the power motor 2011 drives the driving synchronous pulley 2012 to rotate. Under the torque transmission between the synchronous belt 2013 and the driven synchronous pulley 2010, the transfer shaft 208, together with the two driving gears 209 fixed on the outer wall of the transfer shaft 208, rotates. The rotation of the two driving gears 209 drives the upper and lower driven gears 207 and the two key shafts 202 to rotate inside the two connecting plates 201. Furthermore, under the connection of the upper and lower key sleeves 203 and the upper and lower adjusting sleeves 204, the upper and lower chamfering cutter heads 205 rotate. During this process, the servo motor 104 rotates according to the parameters set by the computer. The output shaft rotation angle and direction are continuously adjusted, thereby driving the ball screw 105 to rotate synchronously. This causes the ball nut 106 to move along the axial direction of the ball screw 105, thereby driving the floating plate 101 and the chamfering unit 200 to move together. This allows the two chamfering cutters 205 in the chamfering unit 200 to grind and chamfer along the tooth edge of the gear. On the one hand, this achieves synchronous chamfering on both sides of the gear. On the other hand, since the axis of the chamfering cutters 205, which are symmetrically arranged, 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 groove edge of the gear smoother after chamfering. At the same time, the movement of the floating plate 101 is achieved through the sliding connection between the linear slider 108 and the linear guide rail 107, which makes the movement of the floating plate 101 more accurate and stable.

[0085] When chamfering the precision gear with pointed teeth, firstly, the angles of the upper and lower path guides 2020 are adjusted according to the bevel angle of the gear's pointed teeth. Specifically, the adjusting stud 302 is rotated to generate a threaded thrust, causing the adjusting bracket 303 to move axially along the adjusting stud 302. The precise guidance of the adjusting bracket 303 by the upper and lower guide pins 307 ensures higher movement accuracy and better stability. The movement of the adjusting bracket 303 then drives the upper and lower sliding pins 304 to move together. Through the sliding connection with the upper and lower inclined grooves 306, this generates a reverse wedge force on the upper and lower adjusting blocks 305, causing them to push the upper and lower path guides 2020 to rotate in opposite directions along the upper and lower locating pins 2019 by a certain angle until the angle of the two path guides 2020 matches the bevel angle of the gear's pointed teeth. In accordance with the same principle as the chamfering of spur precision gears, the servo motor 104 continuously adjusts the rotation angle and 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 guide rails 2020. Under the connection of the upper and lower shaft pins 2017, right angle block 2016 and shift fork 2015, the upper and lower ring groove wheels 2014 move along the path direction of the path guide rail 2020, thereby driving the upper and lower key sleeves 203 to move up or down along the outer wall of the upper and lower key shafts 202. Finally, the upper and lower key sleeves 203 drive the upper and lower adjustment sleeves 204 and the chamfering cutter head 205 to move together along the path angle of the path guide rail 2020, thereby adapting to the chamfering processing of high-precision gears with pointed teeth.

[0086] This mechanism also allows for adjustment of the distance between the upper and lower chamfering cutters 205 according to the required gear width. Specifically, by loosening the upper and lower locking bolts 206, since the ends of the locking bolts 206 do 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 cutters 205 to move together, thereby adjusting the distance between the upper and lower chamfering cutters 205. After adjusting the distance between the upper and lower chamfering cutters 205, the locking bolts 206 are tightened again to re-lock the adjusting sleeve 204 and the key sleeve 203, so as to prevent unnecessary movement of the chamfering cutters 205.

[0087] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. A chamfering mechanism for precision gear machining, characterized by: The utility model relates to a precision gear chamfering device, including: Floating unit (100) is fixedly installed through fixed support, the floating unit (100) includes: Floating plate (101) and front crossbeam (102), the floating plate (101) is slidably arranged at the front of front crossbeam (102); End plate (103) is fixedly installed at the back of front crossbeam (102) left and right two ends; Servo motor (104) is fixedly installed at the outer surface of one of end plate (103); Ball screw (105) is rotatably installed between left and right two end plates (103) and is connected with the output shaft of servo motor (104) through shaft coupling; Ball nut (106) is fixedly installed at the back middle part of floating plate (101) and is threadedly connected with ball screw (105); Chamfer unit (200) is fixedly arranged on the surface of floating unit (100) and is used for precision gear chamfering, the chamfer unit (200) includes: Connecting plate (201) is fixedly installed on the front of floating plate (101) in up and down distribution; Key shaft (202) is rotatably installed in the inside of connecting plate (201) respectively and penetrates the top and bottom of connecting plate (201), and the number is two; Key sleeve (203) is slidably installed on the one end of the outer wall of two key shafts (202) close to each other respectively; Adjusting sleeve (204) is slidably installed on the outer wall of two key sleeves (203) respectively; Chamfer tool bit (205) is fixedly installed on the one end of two adjusting sleeves (204) close to each other, and the chamfer tool bit (205) is used for precision gear chamfering; The chamfer unit (200) further includes: Driven gear (207) is fixedly installed on the one end of the outer wall of two key shafts (202) away from each other respectively; Constant-velocity joint shaft (208) is rotatably installed between two connecting plates (201) and penetrates the top and bottom of two connecting plates (201); Driving gear (209) is fixedly installed on the upper and lower parts of constant-velocity joint shaft (208) outer wall, and the driving gear (209) is engaged with two driven gears (207) respectively; Driven synchronous wheel (2010) is fixedly installed on the upper part of constant-velocity joint shaft (208) outer wall; Power motor (2011) is fixedly installed on the upper part of the back of floating plate (101); Driving synchronous wheel (2012) is fixedly installed on the output shaft of power motor (2011); Synchronous belt (2013) is sleeved on the periphery of driven synchronous wheel (2010) and driving synchronous wheel (2012); The chamfer unit (200) further includes: Ring groove wheel (2014) is fixedly installed on the one end of the outer part of two key sleeves (203) away from each other respectively; Shift fork (2015) is movably sleeved in the ring groove of two ring groove wheels (2014) respectively; Right angle block (2016) is fixedly installed on the side face of two shift forks (2015) close to each other, and the right angle block (2016) is located at the one end of shift fork (2015) surface away from ring groove wheel (2014); Shaft pin (2017) is fixedly installed on the one end of the back of two 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 chamfering unit (200) further comprises: The positioning pins (2019) are fixedly installed on the front face left end of the front cross beam (102) in an up-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); The adjusting unit (300) is fixedly arranged on the surface of the floating unit (100) and is used for adjusting the angle of the chamfering unit (200).

2. The chamfering mechanism for precision gear machining according to claim 1, wherein: The adjusting unit (300) comprises: The fixed seats (301) are fixedly installed on the front face right end 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 screw column (302) is rotatably installed in one of the fixed seats (301) located at the right end and penetrates the left side and the right side of the fixed seat (301); The adjusting bracket (303) is threadedly connected to the periphery of the adjusting screw column (302); The sliding pins (304) are fixedly installed on the back of the adjusting bracket (303) in an up-down distribution; The adjusting blocks (305) are fixedly installed on the right end of the bottom of the two path guide rails (2020) in an up-down symmetric distribution; The inclined grooves (306) are respectively provided on the front faces 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 with the upper and lower sliding pins (304).

3. The chamfering mechanism for precision gear machining according to claim 2, wherein: The floating unit (100) further comprises: The linear guide rail (107) is fixedly installed on the back of the front cross beam (102); The linear sliding block (108) is slidably installed on the periphery of the linear guide rail (107) and is fixedly connected with the front face of the floating plate (101) through bolts; The rear cross beam (109) is fixedly installed on the side face of the two end plates (103) away from the front cross beam (102).

4. The chamfering mechanism for precision gear machining according to claim 3, wherein: The chamfering unit (200) further comprises: The locking bolt (206) is screwed into 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 guide hole (2021) is provided through the top of the shift fork (2015); The guide rods (2022) are fixedly installed on the opposite faces of the upper and lower connecting plates (201), and the outer walls of the upper and lower guide rods (2022) are slidably connected with the inner walls of the upper and lower guide holes (2021).

5. The chamfering mechanism for precision gear machining according to claim 4, wherein: The adjusting unit (300) further comprises: The guide posts (307) are fixedly installed between the left and right two fixed seats (301) in up and down distribution, and the adjusting support (303) is slidingly installed on the periphery of the upper and lower two guide posts (307).

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