Gear edge milling tool

Abstract

The invention relates to the field of gear edge milling machining, in particular to a gear edge milling tool which comprises a fixing mechanism arranged on edge milling equipment and used for mounting a gear and a clamping mechanism matched with the fixing mechanism and used for stabilizing the gear. The fixing mechanism comprises a sliding sleeve for mounting the gear, a mounting seat for lifting mounting of the sliding sleeve and capable of being replaced according to the specification of the gear, a limiting structure arranged on the mounting seat and used for limiting and fixing the sliding sleeve, and a rotating base rotationally arranged on the edge milling equipment and used for mounting of the mounting seat; when the gear is arranged on the sliding sleeve in a sleeving mode, the sliding sleeve is driven to slide downwards, and the sliding sleeve and the gear are locked to the installation base through a limiting structure. The gear machining device has the effect of improving the gear machining quality.

Description

Technical Field

[0001] This invention relates to the field of gear milling, and more particularly to a gear milling fixture. Background Technology

[0002] Gears are mechanical components with teeth on their rims that can continuously mesh to transmit motion and power. They are the core components of modern mechanical transmission systems. The core functions of gears are to connect the power source and the actuator, adjust the speed or torque, and change the direction or form of motion.

[0003] In the traditional method, the gear is milled manually by aligning it with the milling machine. The manual person needs to adjust the grinding angle of the milling machine according to different tooth shapes.

[0004] Regarding the aforementioned technologies, manual operation during the process of aligning the gears with the milling equipment is prone to injury, and the grinding force affects the manual adjustment of the grinding angle, resulting in uneven grinding force on the tooth surface and thus poor gear processing quality, which still needs improvement. Summary of the Invention

[0005] To improve the machining quality of gears, this invention provides a gear milling fixture.

[0006] A gear milling fixture includes a fixing mechanism disposed on a milling machine for mounting a gear and a clamping mechanism cooperating with the fixing mechanism for stabilizing the gear. The fixing mechanism includes a sliding sleeve for gear installation, a mounting base for lifting and lowering the sliding sleeve and whose model can be changed according to the gear specifications, a limiting structure set on the mounting base for limiting and fixing the sliding sleeve, and a rotating base rotatably set on the milling machine for mounting the mounting base. When the gear is fitted onto the sliding sleeve, it drives the sliding sleeve to slide downwards, and the sliding sleeve and the gear are locked onto the mounting base by a limiting structure.

[0007] By adopting the above technical solution, the sliding sleeve is used for gear installation. When the gear is inserted, the sliding sleeve is driven to move downward by gravity and the downward pressure of the installation. After the gear slides down, the limiting structure locks the sliding sleeve and the gear on the mounting base, preventing axial movement or tilting displacement of the gear during processing and ensuring the accuracy of processing. The mounting base can be replaced according to the gear specifications. The rotating base drives the mounting base and the gear to rotate synchronously, adapting to the milling requirements of different gears and improving the processing quality of the gears.

[0008] Optionally, the mounting base includes a mounting ring and a mounting base integrally connected to the bottom of the mounting ring; a stepped surface is formed between the mounting ring and the mounting base; The mounting ring includes a rotating part for rotating the sliding sleeve and a limiting part disposed above the rotating part for limiting the sliding sleeve; the sliding sleeve has a loading state and a locking state. In the loading state, the sliding sleeve is located at the limiting part to wait for the gear to be installed. In the locking state, the sliding sleeve moves down to the rotating part synchronously with the gear. The limiting structure includes a locking groove at the lower end of the limiting part, a limiting block rotatably disposed in the locking groove and used to press the gear and sliding sleeve against the stepped surface when rotated out, and a torsion spring disposed between the limiting block and the limiting part; the torsion spring drives the limiting block to always have a tendency to rotate out of the locking groove.

[0009] By adopting the above technical solution, when the sliding sleeve moves from the limiting part to the rotating part, it changes from the feeding state to the locking state. The torsion spring drives the limiting block to rotate out continuously, pressing the sliding sleeve and gear in the locked state together. Locking is performed directly during the feeding process to prevent the sliding sleeve and gear from shifting or tilting, thereby improving the accuracy of processing.

[0010] Optionally, the diameter of the limiting part is larger than the diameter of the rotating part to form a rotating groove in the circumference of the rotating part; the limiting part is vertically provided with a slide rail that extends through the rotating groove; the inner wall of the sliding sleeve is provided with a sliding block that cooperates with the slide rail, and the sliding block can rise and fall in the slide rail and rotate in the rotating groove to limit the sliding sleeve in the rotating groove.

[0011] By adopting the above technical solution, the sliding block cooperates with the slide rail to guide the sliding sleeve to rise and fall along the slide rail in the vertical direction of the mounting ring. After the sliding sleeve moves down to the rotating part, the sliding block enters the rotating groove and can rotate. The protruding part of the limiting part limits the sliding sleeve to prevent it from falling off the mounting seat, thereby improving stability and enhancing the dimensional accuracy of the milled edge.

[0012] Optionally, the limiting blocks are spaced apart circumferentially on the limiting part, and there are multiple limiting blocks; the sliding sleeve is inclinedly provided with guide grooves that correspond one-to-one with the limiting blocks and allow the limiting blocks to be unlocked; When the guide groove is aligned with the limiting block, the sliding block is aligned with the slide rail so that the sliding sleeve can be unlocked and moved upward to the limiting part. By adopting the above technical solution, multiple circumferentially spaced limiting blocks apply uniform clamping force to the gear and sliding sleeve, avoiding uneven force on the gear and causing tilting. When unlocking, it is only necessary to rotate the sliding sleeve so that the guide groove is aligned with the limiting block. Under the action of the inclined surface of the guide groove, the limiting block retracts into the locking groove, thus releasing the clamping. The inclined design of the guide groove makes the unlocking action less strenuous, requires no additional tools, and improves processing efficiency.

[0013] Optionally, the mounting base has a mounting groove, and a first spring is provided in the mounting groove; the first spring abuts against the bottom of the sliding sleeve to drive the sliding sleeve to always have an upward tendency.

[0014] By adopting the above technical solution, before loading, the first spring drives the sliding sleeve to move upward to the limiting part. When the gear is inserted, the sliding sleeve moves downward to the rotating part under the downward pressure of the mounting gear, which simplifies the loading process. After the gear is inserted, the sliding sleeve moves downward to the locked state. After the processing is completed and the sleeve is unlocked, the first spring automatically lifts the sliding sleeve and the gear, which facilitates the unloading of the gear and at the same time resets the sliding sleeve to the loading state.

[0015] Optionally, the rotating base includes a rotating seat, a fixed seat fixedly mounted on the rotating seat and for mounting the mounting seat, and a locking screw for locking the mounting seat to the fixed seat; The bottom of the mounting base protrudes downward and has a plug-in portion that engages with the fixed base, and the mounting base is provided with connecting bolts for connecting to the fixed base in the circumferential direction of the plug-in portion. The locking screw passes through the mounting seat and the fixed seat and is threadedly connected to the rotating seat to press the mounting seat tight.

[0016] By adopting the above technical solution, the insertion and mating of the plug and the fixed seat provide a radial positioning reference for the mounting seat, ensuring the coaxiality of the mounting seat and the rotating seat, thereby ensuring the rotational accuracy during gear milling; the connecting bolts and locking screws make the connection between the mounting seat and the fixed seat more secure, avoiding relative displacement during rotation, reducing processing vibration, and improving stability; during disassembly, only the locking screws and connecting bolts need to be loosened to quickly replace the mounting seat that is compatible with different gear specifications, improving the versatility of the equipment.

[0017] Optionally, the clamping mechanism includes a motor, a driving tooth connected to the output end of the motor, driven teeth symmetrically arranged on both sides of the driving tooth and orthogonally meshing with the driving tooth, a rack that meshes with the driven teeth one-to-one and is driven by the driven teeth to slide horizontally, a telescopic rod arranged between the racks, and a gripper rotatably arranged on the telescopic rod to clamp and fix the gear. The driving tooth is an incomplete gear and is always rotated in a fixed direction by the motor. The driving tooth and two driven teeth form a reciprocating drive structure to drive the grippers to have a clamping state and an open state. In the clamping state, the driving tooth rotates to mesh with one of the driven teeth and drives the two grippers to move closer to each other through the rack to clamp the gear. In the open state, the driving tooth rotates to mesh with the other driven tooth and drives the two grippers to move away from each other through the rack to release the gear.

[0018] By adopting the above technical solution, the motor drives the incomplete gear to rotate, and the driven teeth with orthogonal meshing drive the rack to slide back and forth, thereby driving the gripper to clamp or open. The incomplete gear ensures that while it is meshing with the driven teeth on one side, it will not contact the driven teeth on the other side, thus improving the service life of the equipment.

[0019] Optionally, the clamping mechanism further includes a first fixed rod disposed on the milling machine, sliding rods disposed on both sides of the rack, and a second fixed rod disposed on the milling machine for the sliding rods to slide horizontally. The driven gear is rotatably mounted on the first fixed rod, and the second fixed rod has a groove for the sliding rod to slide horizontally.

[0020] By adopting the above technical solution, the first fixed rod provides stable support for the driven tooth, preventing the driven tooth from deviating when rotating and ensuring precise meshing of the gears; the sliding rod cooperates with the sliding groove to guide the rack to slide smoothly in the horizontal direction, preventing the rack from tilting or jamming when moving, thus improving stability.

[0021] Optionally, both the first fixing rod and the second fixing rod are slidably mounted on the milling machine, and the milling machine is provided with a first adjustment groove for the first fixing rod to slide and a second adjustment groove for the second fixing rod to slide. The first and second fixing rods are symmetrically arranged on both sides of the fixing mechanism to stably clamp the fixing mechanism; A handle is connected between the first fixing rod and the second fixing rod, and the handle drives the first fixing rod and the second fixing rod to move so as to facilitate the replacement of the fixing mechanism.

[0022] By adopting the above technical solution, the first and second fixing rods can slide along the adjustment groove through the handle, driving the fixing rods away from the fixing mechanism, providing space for the disassembly and installation of the mounting base, without the need to disassemble the entire clamping mechanism, thus improving assembly efficiency; the symmetrically arranged fixing rods make the clamping force evenly distributed on both sides of the fixing mechanism, further improving the stability of the gear rotation.

[0023] Optionally, the gripper has a clamping part, a fixing part, and a connecting part connecting the clamping part and the fixing part; the gripper includes a first gripper disposed near the driven tooth and a second gripper disposed away from the driven tooth; A plurality of first connecting rods are provided between the first fixed rods; The fixing part of the second gripper is rotatably mounted on the telescopic rod, and the connecting part of the second gripper is provided with a sliding groove for the first connecting rod to pass through and slide. The fixing part of the first gripper is rotatably mounted on the first connecting rod. A connecting piece is provided between the rack and the connecting part of the first gripper. Both ends of the connecting piece are rotatably mounted to the rack and the connecting part of the first gripper.

[0024] By adopting the above technical solution, the rack moves and drives the two grippers to move synchronously. The rotation setting of the grippers and the sliding cooperation of the sliding groove make the clamping part clamp tightly against the gear surface, reducing the vibration and tilting generated during processing and improving the processing quality of the gear.

[0025] In summary, this application includes at least one of the following beneficial technical effects: After the gear slides down, the limiting structure locks the sliding sleeve and the gear on the mounting base to prevent the gear from axial movement or tilting displacement during processing, thus ensuring the accuracy of processing. The first and second fixing rods can be slid along the adjustment groove by the handle, driving the fixing rods away from the fixing mechanism, providing space for the disassembly and installation of the mounting base, without having to disassemble the entire clamping mechanism, thus improving assembly efficiency; The mounting base can be replaced according to the gear specifications. The rotating base drives the mounting base to rotate synchronously with the gear, adapting to the milling requirements of different gears and improving the gear processing quality. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of a gear milling fixture; Figure 2 This is a sectional view of the fixed mechanism; Figure 3 This is a partial sectional view of the mounting base; Figure 4 This is a schematic diagram of the limiting structure; Figure 5 This is a schematic diagram of the clamping mechanism; Figure 6 This is a schematic diagram of the gripper structure.

[0027] The parts referred to by the numbers in the above attached figures are as follows: 1. Fixing mechanism; 2. Clamping mechanism; 3. Milling equipment; 4. Sliding sleeve; 5. Mounting base; 6. Limiting structure; 7. Rotating base; 8. Mounting ring; 9. Mounting base; 11. Rotating part; 12. Limiting part; 13. Locking groove; 14. Limiting block; 16. Rotating groove; 17. Slide rail; 18. Sliding block; 19. Guide groove; 20. Mounting groove; 21. First spring; 22. Rotating base; 23. Fixing base; 24. Locking screw; 25. Insertion part; 26. Connecting screw 27. Bolt; 28. Motor; 29. ​​Driving gear; 30. Driven gear; 31. Rack; 32. Telescopic rod; 33. Gripper; 34. First fixed rod; 35. Sliding rod; 36. Second fixed rod; 37. Slide groove; 38. First adjusting groove; 39. Second adjusting groove; 40. Handle; 41. Clamping part; 42. Fixed part; 43. Connecting part; 44. First gripper; 45. Second gripper; 46. First connecting rod; 47. Connecting piece; 48. Guide ring; 49. Retaining ring; 50. Entry groove; 51. First guide surface; 52. Second guide surface. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0029] This invention discloses a gear milling fixture.

[0030] Reference Figure 1 A gear milling fixture includes a fixing mechanism 1 and a clamping mechanism 2 mounted on a milling device 3. The milling device 3 includes a frame and a grinding head for milling gears. The fixing mechanism 1 is used for mounting the gears, and the clamping mechanism 2 is used to stabilize the gears. The clamping mechanism 2 cooperates with the fixing mechanism 1 to fix the gears.

[0031] Reference Figure 2 The fixing mechanism 1 includes a sliding sleeve 4, a mounting base 5, a limiting structure 6, and a rotating base 7. The sliding sleeve 4 is used for gear mounting, the mounting base 5 is used for lifting and lowering the sliding sleeve 4, the rotating base 7 is rotatably mounted on the milling machine 3, and the rotating base 7 is used for mounting the mounting base 5. The mounting base 5 can be replaced according to the specifications of different gears, and the limiting structure 6 is set on the mounting base 5. The limiting structure 6 is used to limit and fix the sliding sleeve 4.

[0032] Reference Figure 2 The rotating base 7 includes a rotating base 22, a fixed base 23, and a locking screw 24. The rotating base 22 is rotatably mounted on the milling machine 3, the fixed base 23 is fixedly mounted on the rotating base 22, and the fixed base 23 is used for mounting the mounting base 5. The locking screw 24 is used to lock the mounting base 5 to the fixed base 23.

[0033] Reference Figure 2 The bottom of the mounting base 5 protrudes downward and has a plug-in portion 25. The plug-in portion 25 is plugged into the fixed base 23 to complete the assembly. The mounting base 5 is provided with a connecting bolt 26 around the plug-in portion 25 to connect with the fixed base 23. The locking screw 24 passes through the mounting base 5 and the fixed base 23 and is threadedly connected to the rotating base 22 to press the mounting base 5 tightly.

[0034] Reference Figure 2 In this embodiment, the fixing seat 23 is used to raise the fixing mechanism 1, and as the fixing mechanism 1 increases in height, several fixing seats 23 can be added to achieve the raising effect.

[0035] Reference Figure 2 The mounting base 5 includes a mounting ring 8 and a mounting base 9. The mounting ring 8 and the mounting base 9 are integrally connected, and a stepped surface is formed at the connection point. The diameter of the mounting ring 8 is smaller than the diameter of the mounting base 9, and the stepped surface is on the top surface of the mounting base 9. The sliding sleeve 4 slides and rises on the mounting ring 8.

[0036] Reference Figure 3 The mounting ring 8 includes a rotating part 11 and a limiting part 12. The rotating part 11 is used to rotate the sliding sleeve 4, and the limiting part 12 is used to limit the sliding sleeve 4 located in the rotating part 11. The limiting part 12 is located above the rotating part 11.

[0037] Reference Figure 4 The sliding sleeve 4 has a loading state and a locking state. The loading state refers to the state in which the sliding sleeve 4 is not equipped with a gear, and the locking state refers to the state in which the sliding sleeve 4 is equipped with a gear. In the loading state, the sliding sleeve 4 is located at the limiting part 12 to wait for the gear to be installed; in the locking state, the sliding sleeve 4 moves down to the rotating part 11 synchronously with the gear.

[0038] Reference Figure 4 The limiting structure 6 includes a locking groove 13, a limiting block 14, and a torsion spring. The locking groove 13 is located at the lower end of the limiting part 12. The limiting block 14 is rotatably disposed in the locking groove 13. When the limiting block 14 rotates out of the locking groove 13, it presses the gear and the sliding sleeve 4 against the stepped surface. The torsion spring is disposed between the limiting block 14 and the limiting part 12, and the torsion spring drives the limiting block 14 to always have the tendency to rotate out of the locking groove 13. When the sliding sleeve 4 is in the locked state, it always maintains the limiting effect on the sliding sleeve 4 and the gear.

[0039] Reference Figure 3 The diameter of the limiting part 12 is larger than the diameter of the rotating part 11, and the limiting part 12 and the stepped surface are located on the upper and lower sides of the rotating part 11, forming a rotating groove 16 circumferentially with the rotating part 11. A sliding block 18 is provided on the inner wall of the sliding sleeve 4, and a slide 17 is vertically provided on the limiting part 12. The slide 17 extends into the rotating groove 16, and the sliding block 18 allows the sliding sleeve 4 to rotate to the outside of the rotating part 11. The slide 17 communicates with the rotating groove 16, allowing the sliding block 18 to slide from the outside of the rotating part 11 to the outside of the limiting part 12.

[0040] Reference Figure 4 The limiting blocks 14 are spaced apart around the limiting part 12, and there are multiple limiting blocks 14. The sliding sleeve 4 is inclinedly provided with a guide groove 19, which corresponds to the limiting blocks 14 one by one. The guide groove 19 is used to unlock the limiting blocks 14. When the guide groove 19 and the limiting block 14 are facing each other, the sliding block 18 and the slide 17 are facing each other, so that the sliding sleeve 4 slides out to the outside of the limiting part 12.

[0041] In this embodiment, the limiting block 14 and the slide rail 17 are misaligned, and at least three limiting blocks 14 are provided so that the sliding sleeve 4 and the gear are evenly pressed against the stepped surface.

[0042] Reference Figure 3 The top of the sliding sleeve 4 is provided with a guide ring 47, which protrudes outward, and the bottom of the sliding sleeve 4 is provided with a retaining ring 48, which also protrudes outward. A circumferential entry groove 49 for gear installation is formed between the retaining ring 48 and the guide ring 47. The guide ring 47 has a first guide surface 50 on the side near the top for the gear to enter the groove 49, and a second guide surface 51 on the side away from the top for the gear to exit the entry groove 49.

[0043] Reference Figure 3 A mounting groove 20 is provided on the stepped surface at the top of the mounting base 5. A first spring 21 is provided in the mounting groove 20. The first spring 21 abuts against the bottom of the sliding sleeve 4. The first spring 21 drives the sliding sleeve 4 to always have an upward tendency.

[0044] Reference Figure 5 The clamping mechanism 2 includes a motor 27, a driving gear 28, a driven gear 29, a rack 30, a telescopic rod 31, a first fixed rod 33, a sliding rod 34, a second fixed rod 35, and a gripper 32.

[0045] The driving gear 28 is connected to the output end of the motor 27 and is arranged horizontally. The motor 27 drives the driving gear 28 to rotate. The driven gear 29 is symmetrically arranged on both sides of the driving gear 28. The driven gear 29 and the driving gear 28 are bevel-shaped. The driven gear 29 is arranged longitudinally in the horizontal direction and meshes with the driving gear 28 in a perpendicular direction, converting the horizontal rotation direction into the vertical rotation direction. The rack 30 is provided with locking teeth, which mesh with the driven teeth 29 one by one. The rack 30 is driven by the driven teeth 29 to slide horizontally. The telescopic rod 31 is arranged between the racks 30, and there are several telescopic rods 31. The gripper 32 is rotatably arranged on the telescopic rod 31, and the gripper 32 clamps and fixes the gear by the horizontal movement of the rack 30.

[0046] Reference Figure 5 and Figure 6 The driving gear 28 is an incomplete gear, and the driving gear 28 is driven by the motor 27 to always maintain a fixed direction of rotation. The driving gear 28 and the two driven gears 29 form a reciprocating drive structure, which drives the gripper 32 to have a clamping state and an open state. In the clamping state, the driving gear 28 rotates to mesh with one of the driven gears 29, and drives the two grippers 32 to move closer to each other through the rack 30 to clamp the gear. In the open state, the driving gear 28 rotates to mesh with the other driven gear 29, and drives the two grippers 32 to move away from each other through the rack 30 to release the gear.

[0047] Reference Figure 6 The gripper 32 has a clamping part 40, a fixing part 41, and a connecting part 42. The clamping part 40 is located at the end of the gripper 32 and abuts against the gear. The clamping part 40 performs a clamping action on the gear. The fixing part 41 is located at the end away from the clamping part 40. The fixing part 41 is fixed on the shaft and maintains a relatively stable state. The connecting part 42 connects the clamping part 40 and the fixing part 41, and the connecting part 42 is controlled by external force to control the clamping part 40 to perform clamping or opening actions.

[0048] Reference Figure 6In this embodiment, the gripper 32 includes a first gripper 43 and a second gripper 44 with different driving methods. The first gripper 43 is disposed on the side closer to the driven tooth 29, and the second gripper 44 is disposed on the side farther away from the driven tooth 29.

[0049] A plurality of first connecting rods 45 are provided between the first fixed rods 33. The fixing part 41 of the second gripper 44 is rotatably mounted on the telescopic rod 31, and the connecting part 42 of the second gripper 44 is provided with a sliding groove for the first connecting rods 45 to pass through and slide.

[0050] The fixing part 41 of the first gripper 43 is rotatably mounted on the first connecting rod 45. A connecting piece 46 is provided between the rack 30 and the connecting part 42 of the first gripper 43. Both ends of the connecting piece 46 are rotatably mounted to the rack 30 and the connecting part 42 of the first gripper 43.

[0051] Reference Figure 1 , Figure 5 and Figure 6 The first fixed rod 33 is mounted on the milling device 3, the driven tooth 29 is rotatably mounted on the first fixed rod 33, the sliding rod 34 is mounted on both sides of the rack 30, the second fixed rod 35 is mounted on the milling device 3, and the second fixed rod 35 is provided with a sliding groove 36, which allows the sliding rod 34 to slide horizontally. The sliding rod 34 supports the rack 30 and slides horizontally in the sliding groove 36.

[0052] Reference Figure 1 , Figure 5 and Figure 6 The first fixing rod 33 and the second fixing rod 35 are both slidably mounted on the milling device 3. The milling device 3 is provided with a first adjustment groove 37 for the first fixing rod 33 to slide, and a second adjustment groove 38 for the second fixing rod 35 to slide.

[0053] Reference Figure 1 , Figure 5 and Figure 6 The first fixing rod 33 and the second fixing rod 35 are symmetrically arranged on both sides of the fixing mechanism 1. The first fixing rod 33 and the second fixing rod 35 stably clamp the fixing mechanism 1. A handle 39 is connected between the first fixing rod 33 and the second fixing rod 35. The handle 39 is located on the outside of the milling device 3. By controlling the handle 39, the first fixing rod 33 and the second fixing rod 35 can be driven to move horizontally together to facilitate the replacement of the fixing mechanism 1 or the installation of gears.

[0054] The implementation principle of a gear milling fixture according to an embodiment of this application is as follows: the gear is fitted into the entry groove 49 of the sliding sleeve 4 along the first guide surface 50, and the downward pressure of the installation presses the first spring 21 into the mounting groove 20. The sliding sleeve 4 moves vertically downward along the slide rail 17. When the sliding sleeve 4 is switched to the locked state, the sliding sleeve 4 moves down to the rotating part 11 of the mounting ring 8, and the sliding block 18 enters the rotating groove 16 and is misaligned with the slide rail 17. At this time, the bottom of the sliding sleeve 4 is in contact with the stepped surface and is locked by the limiting structure 6.

[0055] During the downward movement of the sliding sleeve 4, the inner wall edge of the sleeve 4 presses against the inclined surface of the limiting block 14, causing the limiting block 14 to retract into the locking groove 13. When the sliding sleeve 4 is fully switched to the locked state, the torsion spring drives the limiting block 14 to rotate out of the locking groove 13, pressing the sliding sleeve 4 and the gear onto the stepped surface to prevent the gear from tilting and shaking during processing.

[0056] After the sliding block 18 enters the rotating groove 16, the sliding sleeve 4 is rotated so that the sliding block 18 is completely misaligned with the slide rail 17, and the edge of the limiting part 12 restricts the sliding sleeve 4 from coming off upward; at this time, the sliding sleeve 4 can rotate synchronously with the rotating base 7, and the limiting block 14 is always kept in a pressed state under the action of the torsion spring during the rotation.

[0057] After processing, rotate the sliding sleeve 4 until the guide groove 19 and the limiting block 14 are aligned one by one. The inclined surface of the guide groove 19 presses the limiting block 14 to retract into the locking groove 13, releasing the unlocked state. At this time, the first spring 21 pushes the sliding sleeve 4 to reset upward, and the sliding block 18 is aligned with the slide rail 17.

[0058] When the sliding sleeve 4 moves up to the limiting part 12, the gear rises synchronously with the sliding sleeve 4 and is taken out along the second guide surface 51 of the guide ring 47.

[0059] Mounting base 5 is inserted into the fixed base 23 of rotating base 7 via the bottom insertion part 25 to ensure the stability of mounting base 5 and rotating base 22; connecting bolt 26 fixes mounting base 5 and fixed base 23 circumferentially along insertion part 25, and locking screw 24 passes through mounting base 5 and fixed base 23 and is threadedly connected to rotating base 22 to prevent mounting base 5 from shifting during rotation and ensure processing stability.

[0060] When machining gears of different specifications, simply loosen the locking screw 24 and connecting bolt 26, remove the original mounting base 5, replace it with a mounting base 5 that is compatible with the new gear, and then fix it to the locking screw 24 with bolts. If it is necessary to raise the fixing mechanism 1, the number of fixing bases 23 can be increased to adapt to the processing height requirements of different milling equipment 3.

[0061] The motor 27 drives the active tooth 28 to rotate in one direction. When the tooth of the active tooth 28 meshes with the driven tooth 29 on one side, it drives the driven tooth 29 to rotate, thereby driving the meshing rack 30 to slide horizontally along the slide groove 36 of the second fixed rod 35. The rack 30 drives the first gripper 43 to rotate around the first connecting rod 45 through the connecting piece 46. At the same time, the first connecting rod 45 drives the second gripper 44 to rotate around the telescopic rod 31, so that the first and second grippers 32 on both sides approach each other synchronously and clamp the gear symmetrically.

[0062] The driving gear 28 and the driven gear 29 form a reciprocating motion structure. By controlling the speed of the motor 27 and the specifications of the driving gear 28, the time interval between clamping and opening can be determined, thereby coordinating the fixing and rotation angle of the gear during milling.

[0063] When the teeth of the driving tooth 28 disengage from the driven tooth 29 on one side and mesh with the driven tooth 29 on the other side, the rack 30 slides in the opposite direction, causing the gripper 32 to move away synchronously and switch to the open state, which facilitates gear loading and unloading.

[0064] By driving the first fixing rod 33 and the second fixing rod 35 horizontally along the first adjustment groove 37 and the second adjustment groove 38 through the handle 39, the distance between the gripper 32 and the fixing mechanism 1 can be adjusted. When replacing the mounting base 5, the gripper 32 is driven away from the fixing mechanism 1 by the handle 39, providing sufficient space for the disassembly and installation of the mounting base 5 without the need to completely disassemble the clamping mechanism 2.

[0065] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A gear milling fixture, characterized in that, It includes a fixing mechanism (1) mounted on the milling machine (3) for mounting the gear and a clamping mechanism (2) cooperating with the fixing mechanism (1) for stabilizing the gear. The fixing mechanism (1) includes a sliding sleeve (4) for gear installation, a mounting base (5) for lifting and lowering the sliding sleeve (4) and whose model can be changed according to the gear specifications, a limiting structure (6) set on the mounting base (5) for limiting and fixing the sliding sleeve (4), and a rotating base (7) rotatably set on the milling equipment (3) for mounting the mounting base (5). When the gear is fitted onto the sliding sleeve (4), it drives the sliding sleeve (4) to slide downwards, and the sliding sleeve (4) and the gear are locked onto the mounting base (5) by the limiting structure (6).

2. The gear milling fixture according to claim 1, characterized in that, The mounting base (5) includes a mounting ring (8) and a mounting base (9) integrally connected to the bottom of the mounting ring (8); a stepped surface is formed between the mounting ring (8) and the mounting base (9); The mounting ring (8) includes a rotating part (11) for rotating the sliding sleeve (4) and a limiting part (12) disposed above the rotating part (11) for limiting the sliding sleeve (4); the sliding sleeve (4) has a loading state and a locking state. In the loading state, the sliding sleeve (4) is located at the limiting part (12) to wait for the gear to be installed. In the locking state, the sliding sleeve (4) moves down to the rotating part (11) synchronously with the gear. The limiting structure (6) includes a locking groove (13) opened at the lower end of the limiting part (12), a limiting block (14) rotatably disposed in the locking groove (13) and used to press the gear and sliding sleeve (4) against the stepped surface when rotating out, and a torsion spring disposed between the limiting block (14) and the limiting part (12); the torsion spring drives the limiting block (14) to always have a tendency to rotate out of the locking groove (13).

3. The gear milling fixture according to claim 2, characterized in that, The diameter of the limiting part (12) is larger than the diameter of the rotating part (11) to form a rotating groove (16) in the circumference of the rotating part (11); the limiting part (12) is vertically provided with a slide (17) that extends through the rotating groove (16); the inner wall of the sliding sleeve (4) is provided with a sliding block (18) that cooperates with the slide (17), and the sliding block (18) can rise and fall in the slide (17) and rotate in the rotating groove (16) to limit the sliding sleeve (4) in the rotating groove (16).

4. The gear milling fixture according to claim 3, characterized in that, The limiting blocks (14) are arranged circumferentially on the limiting part (12), and there are multiple limiting blocks (14); the sliding sleeve (4) is inclinedly provided with guide grooves (19) that correspond one-to-one with the limiting blocks (14) and allow the limiting blocks (14) to be unlocked. When the guide groove (19) is aligned with the limiting block (14), the sliding block (18) is aligned with the slide rail (17) so that the sliding sleeve (4) can be unlocked and moved up to the limiting part (12).

5. A gear milling fixture according to claim 4, characterized in that, The mounting base (5) has a mounting groove (20), and a first spring (21) is provided in the mounting groove (20); the first spring (21) abuts against the bottom of the sliding sleeve (4) to drive the sliding sleeve (4) to always have an upward tendency.

6. A gear milling fixture according to claim 1, characterized in that, The rotating base (7) includes a rotating base (22), a fixed base (23) fixedly mounted on the rotating base (22) and for mounting the mounting base (5), and a locking screw (24) for locking the mounting base (5) to the fixed base (23). The bottom of the mounting base (5) protrudes downward and has a plug-in portion (25) that is engaged with the fixed base (23). The mounting base (5) is provided with a connecting bolt (26) that is connected to the fixed base (23) in the circumferential direction of the plug-in portion (25). The locking screw (24) passes through the mounting seat (5) and the fixing seat (23) and is threadedly connected to the rotating seat (22) to press the mounting seat (5) tight.

7. A gear milling fixture according to claim 1, characterized in that, The clamping mechanism (2) includes a motor (27), an active tooth (28) connected to the output end of the motor (27), a driven tooth (29) symmetrically arranged on both sides of the active tooth (28) and orthogonally meshing with the active tooth (28), a rack (30) meshing with the driven tooth (29) one by one and driven by the driven tooth (29) to slide horizontally, a telescopic rod (31) arranged between the racks (30), and a gripper (32) rotatably arranged on the telescopic rod (31) and clamping and fixing the gear. The active gear (28) is an incomplete gear and is driven by the motor (27) to maintain a fixed rotation direction. The active gear (28) and the two driven gears (29) form a reciprocating drive structure to drive the gripper (32) to have a clamping state and an open state. In the clamping state, the active gear (28) rotates to mesh with one of the driven gears (29) and drives the two grippers (32) to move closer to each other through the rack (30) to clamp the gear. In the open state, the active gear (28) rotates to mesh with the other driven gear (29) and drives the two grippers (32) to move away from each other through the rack (30) to release the gear.

8. A gear milling fixture according to claim 7, characterized in that, The clamping mechanism (2) further includes a first fixed rod (33) disposed on the milling device (3), a sliding rod (34) disposed on both sides of the rack (30), and a second fixed rod (35) disposed on the milling device (3) and allowing the sliding rod (34) to slide horizontally. The driven tooth (29) is rotatably mounted on the first fixed rod (33), and the second fixed rod (35) is provided with a groove (36) for the sliding rod (34) to slide horizontally.

9. A gear milling fixture according to claim 8, characterized in that, The first fixing rod (33) and the second fixing rod (35) are both slidably mounted on the milling device (3). The milling device (3) is provided with a first adjustment groove (37) for the first fixing rod (33) to slide and a second adjustment groove (38) for the second fixing rod (35) to slide. The first fixing rod (33) and the second fixing rod (35) are symmetrically arranged on both sides of the fixing mechanism (1) to stably clamp the fixing mechanism (1); A handle (39) is connected between the first fixing rod (33) and the second fixing rod (35). The handle (39) drives the first fixing rod (33) and the second fixing rod (35) to move so that the fixing mechanism (1) can be replaced.

10. A gear milling fixture according to claim 8, characterized in that, The gripper (32) has a gripping part (40), a fixing part (41), and a connecting part (42) connecting the gripping part (40) and the fixing part (41); the gripper (32) includes a first gripper (43) disposed on the side near the driven tooth (29) and a second gripper (44) disposed on the side away from the driven tooth (29). A plurality of first connecting rods (45) are provided between the first fixed rods (33); The fixing part (41) of the second gripper (44) is rotatably mounted on the telescopic rod (31), and the connecting part (42) of the second gripper (44) is provided with a sliding groove for the first connecting rod (45) to pass through and slide. The fixing part (41) of the first gripper (43) is rotatably mounted on the first connecting rod (45). A connecting piece (46) is provided between the rack (30) and the connecting part (42) of the first gripper (43). Both ends of the connecting piece (46) are rotatably mounted to the rack (30) and the connecting part (42) of the first gripper (43).

Images