Gear tooth surface finish machining device and machining method

Abstract

The invention belongs to the technical field of gear machining, and provides a gear tooth surface finish machining device. A movable rod; a grinding rod; a driving mechanism; a correction mechanism; and an intermittent rotating mechanism. The grinding rod is transversely close to the tooth groove, the grinding rod can be effectively prevented from touching the surface of the gear body, and the gear body is prevented from being damaged; the correcting cylinder is sleeved on the periphery of the grinding rod through the driving mechanism, the correcting cylinder can correct the bent grinding rod, so that the grinding rod is slowly changed into a straight state from a bent state, and an arc-shaped fillet can be arranged at the top of an inner hole of the correcting cylinder, so that even if the grinding rod is bent and the correcting cylinder moves upwards, the correcting cylinder can be slowly sleeved on the periphery of the grinding rod; according to the gear grinding device, the grinding rod is preliminarily corrected, bending of the grinding rod is effectively avoided, it is guaranteed that the grinding rod can normally conduct precise grinding on the tooth surface, the tooth surfaces in all tooth grooves in a gear body can be normally ground, and therefore the tooth surfaces can meet the machining requirement after being ground.

Description

Technical Field

[0001] The present invention belongs to the technical field of gear processing, and particularly relates to a gear tooth surface finishing device and a processing method. Background Art

[0002] During the gear processing, it is necessary to grind the tooth surface in the gear tooth groove to make the tooth block size of the gear more precise, so as to ensure that the tooth surface in the gear tooth groove meets the processing requirements.

[0003] Currently, a processing device is generally used to process the gear tooth surface. For example, the document of Chinese Patent Application CN202210507625.1 records a tooth surface grinding device for the processing of a reducer gear. Its main technical means is to sleeved the gear on the stud of the carrier plate. After adjusting the position of the gear and fixing the gear with a locking nut, start the hydraulic lifting rod to control the downward movement of the mounting plate, so that the grinding rod extends into the tooth groove of the gear. At the same time, the drive motor controls the grinding rod to rotate at a high speed, so that the grinding rod can grind the bottom of the tooth groove, facilitating the synchronous grinding of all tooth grooves of the gear. After the applicant's analysis, the disadvantages of this technical solution are as follows: when the grinding rod grinds the tooth surface in the tooth groove, since the grinding rod needs to fit with the tooth surface, a horizontal force will be applied to the tooth surface by the grinding rod, and the grinding rod rotates during operation, which may cause the grinding rod to bend. The grinding rod extends downward into the tooth groove of the gear. If the grinding rod is bent, the grinding rod may abut against the top of the gear when moving downward, resulting in the grinding rod being unable to move downward normally to grind the tooth groove. Seriously, the grinding rod may directly damage the gear, causing the gear to fail to meet the processing requirements. Summary of the Invention

[0004] The purpose of the present invention is to provide a gear tooth surface finishing device and a processing method, aiming to solve the technical problem that the grinding rod may bend during operation in the prior art, resulting in the grinding rod may abut against the top of the gear when moving downward next time, thus causing the grinding rod to be unable to move downward normally to grind the tooth groove.

[0005] The purpose of the present invention can be achieved by the following technical solutions: A gear tooth surface finishing device, including a base, and the device further includes: A tabletop. A plurality of brackets are arranged on the top of the base, and a tabletop is fixed on the top of the plurality of brackets. A rotating rod is longitudinally penetrated through the center position of the tabletop, and a gear body is fixedly installed on the periphery of the rotating rod through a nut; Movable rod, a telescopic member is installed on the base, a fixed disk is arranged at the output end of the telescopic member, a rotating ring is rotatably installed around the fixed disk, a plurality of hinged rods are hinged around the rotating ring, the other end of the hinged rod is hinged with a movable rod, a plurality of arc-shaped through grooves are arranged in a circular array on the tabletop, the movable rod passes through the arc-shaped through groove, a limiting block is arranged on the movable rod, a limiting groove is arranged in the arc-shaped through groove, and the limiting block is sleeved in the limiting groove; Grinding rod, a frame is arranged at the top of the movable rod, a driving member is installed at the top of the frame through a connecting block, and a grinding rod is installed at the output end of the driving member; Driving mechanism, a driving mechanism is installed in the frame; Calibration mechanism, the calibration mechanism includes a calibration cylinder, the calibration cylinder is sleeved around the grinding rod, the calibration cylinder is connected with the driving mechanism, and the driving mechanism drives the calibration cylinder to move up and down; Intermittent rotation mechanism, an intermittent rotation mechanism is installed at the bottom of the tabletop, and the intermittent rotation mechanism is connected with the rotating rod.

[0006] As a preference of the above technical solution, mounting grooves are arranged on the inner wall of the calibration cylinder, a plurality of correction rollers are longitudinally rotatably installed in the mounting grooves, and the correction rollers are attached to the surface of the grinding rod.

[0007] As a preference of the above technical solution, the driving mechanism includes: Main tooth plate, a square tube is arranged horizontally on the frame, the main tooth plate is movably sleeved in the square tube, an elastic member I is connected between the main tooth plate and the square tube, and the other end of the main tooth plate is hinged with a movable plate; Driving gear, a driving gear is rotatably installed in the frame, and the main tooth plate meshes with the driving gear; Slave tooth plate, a slave tooth plate is longitudinally slidably installed in the frame, the slave tooth plate is close to the square tube, the slave tooth plate meshes with the driving gear, a connecting plate is arranged at the bottom of the slave tooth plate, and the other end of the connecting plate is fixed on the surface of the calibration cylinder.

[0008] As a preference of the above technical solution, an outer cover is arranged around the top of the calibration cylinder, a plurality of through holes are longitudinally arranged on the calibration cylinder, fan blades are rotatably installed in the through holes, and a transmission assembly is connected between the correction roller and the fan blade.

[0009] As a preference of the above technical solution, a filter plate is inclinedly installed in the through hole, the filter plate is located above the fan blade, a plurality of discharge holes are arranged around the calibration cylinder, the discharge holes are communicated with the through holes, the filter plate is inclined towards the discharge holes, a collection box is arranged around the calibration cylinder, and the discharge holes are communicated with the collection box.

[0010] Preferably, as the above technical solution, two baffles are provided on the top of the movable plate. The two baffles are located above the gear body, and the distance between the two baffles is greater than the size of the tooth grooves on the gear body.

[0011] Preferably, as the above technical solution, the intermittent rotation mechanism includes: A ratchet wheel, with a ratchet wheel fixed to the bottom end of the rotating rod; A fixing plate, with a fixing plate fixed to the bottom of the tabletop; A sliding plate, with a sliding plate longitudinally slidably mounted on the fixing plate. An inclined groove is provided on one side of the sliding plate close to the ratchet wheel; Two U-shaped frames, with two U-shaped frames fixed to the fixing plate; A slider, with the slider slidably mounted between the two U-shaped frames. A guide rod is provided on one side of the slider close to the sliding plate, and the guide rod is sleeved in the inclined groove; A pushing tooth, with a support plate provided on the slider. A pushing tooth is rotatably mounted on the support plate. The pushing tooth is stuck in one of the tooth grooves of the ratchet wheel. An elastic member II is connected between the pushing tooth and the slider; A ratchet tooth, with a connecting rod fixed to the bottom of the tabletop. A U-shaped plate is fixed to the bottom end of the connecting rod. A ratchet tooth is rotatably mounted in the U-shaped plate. The ratchet tooth is stuck in one of the tooth grooves of the ratchet wheel. An elastic member III is connected between the ratchet tooth and the U-shaped plate.

[0012] Preferably, as the above technical solution, a push plate is fixed to the bottom of the sliding plate, a connecting column is fixed to the bottom of the push plate, a support plate is fixed to the bottom of the fixing plate, the bottom edge part of the connecting column abuts against the support plate, and a push rod is fixed to the top of the fixed disk. When the push rod moves upward, it pushes the connecting column to move upward.

[0013] A processing method of a gear tooth surface finishing device, which is applied to the above gear tooth surface finishing device. The method includes the following steps: Step S1: Sleeve the gear body to be processed around the rotating rod through the circular hole in the center, and then fix the gear body and the rotating rod together by using a nut; Step S2: Start the telescopic member to contract. Pull several movable rods along the arc-shaped through groove towards the gear body through the fixed disk, the rotating ring and several hinge rods, so that the grinding rod is stuck in the tooth grooves of the gear body; Step S3: When the movable rod moves towards the gear body, the movable plate first contacts the outer surface of the gear body. The movable rod continues to move, so that the movable plate drives the main tooth plate to move into the square tube. While the main tooth plate is moving, the transmission gear rotates, the transmission gear drives the slave tooth plate to move upward, so that the connecting plate drives the correction cylinder to move upward, so that the correction cylinder is sleeved around the grinding rod to perform a preliminary correction on the grinding rod. When the grinding rod rotates to grind the tooth surface of the tooth groove, the correction roller rotates accordingly and further corrects the grinding rod; Step S4: After the correction roller rotates, the fan blade is driven to rotate through the transmission assembly. After the fan blade rotates, the airflow at the through hole flows from top to bottom, so that the metal debris generated when the grinding rod grinds the tooth surface enters the through hole under the guidance of gravity and airflow, and finally enters the collection box under the guidance of the filter plate; Step S5: After the tooth surface of the gear body is ground, the telescopic part is extended to move the movable rod away from the gear body, so that the grinding rod is away from the tooth groove. When the telescopic part is extended to a certain height, the push rod pushes the connecting column to move upward, and the connecting column drives the push plate to push the slide plate to move upward. When the slide plate moves upward, the guide rod on the slider moves along the inclined groove, so that the slider drives the push tooth to push the ratchet to rotate a certain angle. The ratchet drives the gear body to rotate a tooth groove angle through the rotating rod, and then the above steps are performed to make the grinding rod stuck in another tooth groove, so as to realize the grinding of all tooth grooves on the gear body.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, the grinding rod is horizontally close to the tooth groove, so that even if the grinding rod is bent, the grinding rod can be effectively prevented from touching the surface of the gear body, thereby preventing the gear body from being damaged; when the movable rod moves toward the gear body, the correction cylinder is moved upward by the driving mechanism, so that the correction cylinder is sleeved on the outer periphery of the grinding rod. If the grinding rod is bent during use, when the correction cylinder is moved upward and sleeved on the outer periphery of the grinding rod, the correction cylinder can correct the bent grinding rod, so that the grinding rod slowly changes from a bent state to a straight state. Here, an arc fillet can be set at the top of the inner hole of the correction cylinder, so that even if the grinding rod is bent, the correction cylinder can slowly sleeve on the outer periphery of the grinding rod when it moves upward, thereby performing preliminary correction on the grinding rod, effectively preventing the grinding rod from bending, thereby ensuring that the grinding rod can normally perform precision grinding on the tooth surface, so that the tooth surfaces in all tooth grooves on the gear body can be normally ground, so that the tooth surfaces can meet the processing requirements after being ground; 2. In the present invention, after the grinding rod rotates, several correction rollers in the correction cylinder also rotate, and the correction rollers contact the surface of the grinding rod to provide radial support to the grinding rod, so as to prevent the grinding rod from lateral deviation and dynamic bending when subjected to force, so that the grinding rod is slowly corrected, thereby further correcting the grinding rod, effectively avoiding the bending of the grinding rod, thereby ensuring that the grinding rod can normally perform precision grinding on the tooth surface, so that the tooth surface in all the tooth grooves on the gear body can be normally ground, so that the tooth surface can meet the processing requirements after being ground; 3. In the present invention, several correction rollers are attached to the surface of the grinding rod, so that the grinding rod always remains straight during the rotation and grinding process, thereby further effectively preventing the grinding rod from bending during the rotation and grinding process, ensuring that the grinding rod can normally perform precision grinding on the tooth surface, and enabling the tooth surface to meet the processing requirements after being ground; several correction rollers evenly support the surface of the grinding rod, making the force on the surface of the grinding rod uniform, and effectively preventing plastic deformation caused by single-point overload of the grinding rod; the correction rollers rotate synchronously with the grinding rod, avoiding additional heat and wear caused by sliding friction, and maintaining a continuous correction force, thereby effectively preventing the grinding rod from bending during the rotation process; several correction rollers can absorb the high-frequency vibration of the grinding rod during the grinding process through the damping effect, thereby improving the stability of the grinding rod during the grinding process, ensuring that the grinding rod can normally perform precision grinding on the tooth surface, and indirectly preventing the grinding rod from bending during the rotation process; 4. In the present invention, when the grinding rod rotates to grind the tooth surface, the correction rollers rotate synchronously. Through the transmission of the transmission component, the fan blades also rotate synchronously. When the fan blades rotate, the air flow at the through holes flows from top to bottom. In this way, the metal chips generated when the grinding rod grinds the tooth surface fall downward under the guidance of gravity and air flow, and enter the through holes. Finally, under the guidance of the filter plate, they enter the collection box. In this way, the generated metal chips can be centrally collected, effectively preventing the metal chips from splashing everywhere into other tooth grooves, and preventing the grinding rod from having metal chips between the grinding rod and the tooth surface when grinding this tooth groove subsequently; preventing the tooth surface from being damaged when the grinding rod grinds, and preventing the surface of the grinding rod from being overloaded and bending and deforming due to partial force. Description of the Drawings

[0015] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the connection structure between the telescopic member and the movable rod; Figure 3 is a schematic diagram of the internal structure of the frame; Figure 4 is a schematic diagram of the driving mechanism structure; Figure 5 is a schematic diagram of the correction mechanism structure; Figure 6 is a schematic diagram of the enlarged view of the grinding rod during operation and some structures; Figure 7 is a schematic diagram of the intermittent transmission mechanism structure; Figure 8 is a schematic diagram of the intermittent transmission mechanism after partial structure disassembly.

[0016] In the figure: 1. Base; 2. Tabletop; 21. Arc-shaped through groove; 211. Limit groove; 3. Telescopic member; 31. Fixed plate; 32. Rotating ring; 33. Hinge rod; 34. Push rod; 4. Movable rod; 41. Limit block; 5. Frame; 51. Square tube; 52. Connecting block; 6. Driving member; 61. Grinding rod; 7. Driving mechanism; 71. Main tooth plate; 711. Movable plate; 712. Baffle; 72. First elastic member; 73. Transmission gear; 74. Slave tooth plate; 75. Connecting plate; 8. Calibration mechanism; 81. Calibration cylinder; 811. Through hole; 812. Outer cover; 813. Installation groove; 814. Discharge hole; 82. Calibration roller; 83. Transmission assembly; 84. Fan blade; 85. Filter plate; 86. Collection box; 9. Intermittent rotation mechanism; 91. Fixed plate; 911. Support plate; 92. Slide plate; 921. Inclined groove; 93. U-shaped frame; 94. Slide block; 941. Support plate; 942. Guide rod; 95. Pushing tooth; 951. Second elastic member; 96. Ratchet; 97. U-shaped plate; 971. Connecting rod; 98. Ratchet tooth; 981. Third elastic member; 99. Push plate; 991. Connecting column; 10. Rotating rod; 11. Gear body; 12. Bracket. Detailed implementation mode

[0017] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0018] The following describes the specific implementation of the present invention in detail with reference to specific embodiments.

[0019] As Figures 1-5 shown, a device for precision finishing of gear tooth surfaces includes a base 1, and the device further includes: A tabletop 2 is provided at the top of the base 1 with a plurality of brackets 12. The tops of the plurality of brackets 12 are fixed with the tabletop 2. A rotating rod 10 is longitudinally penetrated and installed at the center of the tabletop 2, and a gear body 11 is fixedly installed around the rotating rod 10 through a nut; A movable rod 4, a telescopic member 3 is installed on the base 1, the output end of the telescopic member 3 is provided with a fixed plate 31, a rotating ring 32 is rotatably installed around the fixed plate 31, a plurality of hinge rods 33 are hinged around the rotating ring 32, the other end of the hinge rod 33 is hinged with the movable rod 4, a plurality of arc-shaped through grooves 21 are arranged in an annular array on the tabletop 2, the movable rod 4 passes through the arc-shaped through grooves 21, a limit block 41 is arranged on the movable rod 4, and a limit groove 211 is arranged in the arc-shaped through groove 21, and the limit block 41 is sleeved in the limit groove 211; A grinding rod 61, a frame 5 is arranged at the top of the movable rod 4, a driving member 6 is installed on the top of the frame 5 through a connecting block 52, and a grinding rod 61 is installed at the output end of the driving member 6; The driving mechanism 7 is installed within the frame 5; The calibration mechanism 8, the calibration mechanism 8 includes a calibration cylinder 81, the calibration cylinder 81 is sleeved around the periphery of the grinding rod 61, the calibration cylinder 81 is connected to the driving mechanism 7, and the driving mechanism 7 drives the calibration cylinder 81 to move up and down; The intermittent rotation mechanism 9, the intermittent rotation mechanism 9 is installed at the bottom of the table 2, and the intermittent rotation mechanism 9 is connected to the rotating rod 10.

[0020] In one case of this embodiment, the telescopic member 3 can be a cylinder or other components capable of telescopic driving.

[0021] In actual application of this embodiment, the gear body 11 to be processed is sleeved around the periphery of the rotating rod 10 through the central circular hole, and then the gear body 11 and the rotating rod 10 are fixed together by using a nut. Then, the telescopic member 3 is started to contract, and the fixed disk 31, the rotating ring 32 and several articulated rods 33 pull several movable rods 4 to move along the arc-shaped through groove 21 towards the gear body 11, so that the grinding rod 61 is stuck in the tooth groove of the gear body 11, and the grinding rod 61 can perform precision grinding on the tooth surface in the tooth groove of the gear body 11. By moving the grinding rod 61 horizontally closer to the tooth groove, even if the grinding rod 61 is bent, this can effectively prevent the grinding rod 61 from touching the surface of the gear body 11 and avoid damage to the gear body 11; When the movable rod 4 moves towards the gear body 11, the driving mechanism 7 is used to move the calibration cylinder 81 upward, so that the calibration cylinder 81 is sleeved around the periphery of the grinding rod 61. If the grinding rod 61 is bent during previous use, when the calibration cylinder 81 moves upward and is sleeved around the periphery of the grinding rod 61, the calibration cylinder 81 can calibrate the bent grinding rod 61, making the grinding rod 61 gradually change from a bent state to a straight state. Here, an arc-shaped fillet can be provided at the top of the inner hole of the calibration cylinder 81, so that even if the grinding rod 61 is bent, the calibration cylinder 81 can slowly be sleeved around the periphery of the grinding rod 61 when moving upward, thereby performing preliminary calibration on the grinding rod 61, effectively preventing the grinding rod 61 from bending, and ensuring that the grinding rod 61 can normally perform precision grinding on the tooth surface, so that the tooth surfaces in all the tooth grooves of the gear body 11 can be normally ground, and the tooth surfaces can meet the processing requirements after being ground; After the calibration cylinder 81 is sleeved around the periphery of the grinding rod 61, when the grinding rod 61 rotates to grind the tooth surface, one end of the grinding rod 61 is restricted by the driving member 6, and the other end is restricted by the calibration cylinder 81, effectively preventing the grinding rod 61 from becoming bent during the rotational grinding process, and ensuring that the grinding rod 61 can normally perform precision grinding on the tooth surface, so that the tooth surfaces in all the tooth grooves of the gear body 11 can be normally ground, and the tooth surfaces can meet the processing requirements after being ground.

[0022] Further, an installation groove 813 is formed in the inner wall of the correction cylinder 81, and a plurality of correction rollers 82 are longitudinally rotatably installed in the installation groove 813. The correction rollers 82 are in contact with the surface of the grinding rod 61.

[0023] In practical application of this embodiment, after the grinding rod 61 rotates, a plurality of correction rollers 82 in the correction cylinder 81 also rotate accordingly. By contacting the surface of the grinding rod 61 through the correction rollers 82, radial support is provided to the grinding rod 61, preventing the grinding rod 61 from laterally deflecting and dynamically bending when stressed, so that the grinding rod 61 is gradually corrected, further correcting the grinding rod 61, effectively avoiding the bending of the grinding rod 61, ensuring that the grinding rod 61 can normally perform precision grinding on the tooth surface, enabling the tooth surfaces in all the tooth grooves on the gear body 11 to be normally ground, and enabling the tooth surface to meet the processing requirements after being ground; By fitting a plurality of correction rollers 82 on the surface of the grinding rod 61, the grinding rod 61 is kept straight during the rotation and grinding process, further effectively avoiding the bending of the grinding rod 61 during the rotation and grinding process, ensuring that the grinding rod 61 can normally perform precision grinding on the tooth surface, and enabling the tooth surface to meet the processing requirements after being ground; By evenly supporting a plurality of correction rollers 82 on the surface of the grinding rod 61, the force on the surface of the grinding rod 61 is made uniform, effectively avoiding plastic deformation caused by single-point overload of the grinding rod 61; The correction rollers 82 rotate synchronously with the grinding rod 61, avoiding additional heat and wear caused by sliding friction, and maintaining a continuous correction force, thus effectively avoiding the bending of the grinding rod 61 during rotation; A plurality of correction rollers 82 can absorb high-frequency vibrations of the grinding rod 61 during the grinding process through the damping effect, thereby improving the stability of the grinding rod 61 during the grinding process, ensuring that the grinding rod 61 can normally perform precision grinding on the tooth surface, and indirectly avoiding the bending of the grinding rod 61 during rotation.

[0024] As Figure 3 and Figure 5 shown, the driving mechanism 7 includes: A main tooth plate 71. A square tube 51 is arranged horizontally on the frame 5. The main tooth plate 71 is movably sleeved in the square tube 51. An elastic member 72 is connected between the main tooth plate 71 and the square tube 51. The other end of the main tooth plate 71 is hinged with a movable plate 711; A transmission gear 73. The transmission gear 73 is rotatably installed in the frame 5. The main tooth plate 71 and the transmission gear 73 are meshed with each other; A secondary tooth plate 74. The secondary tooth plate 74 is longitudinally slidably installed in the frame 5. The secondary tooth plate 74 is close to the square tube 51. The secondary tooth plate 74 and the transmission gear 73 are meshed with each other. A connecting plate 75 is arranged at the bottom of the secondary tooth plate 74. The other end of the connecting plate 75 is fixed on the surface of the correction cylinder 81.

[0025] In one case of this embodiment, the first elastic member 72 can be a spring or other components that can elastically expand and contract.

[0026] In the actual application of this embodiment, when the movable rod 4 moves towards the gear body 11, the movable plate 711 first contacts the outer surface of the gear body 11. As the movable rod 4 continues to move, the movable plate 711 drives the main tooth plate 71 to move into the square tube 51, and at the same time, the first elastic member 72 is compressed. While the main tooth plate 71 is moving, the transmission gear 73 rotates, and the transmission gear 73 drives the driven tooth plate 74 to move upward, so that the connecting plate 75 drives the calibration cylinder 81 to move upward. When the grinding rod 61 is stuck in the tooth groove, the movable rod 4 cannot move at this time, and the calibration cylinder 81 just sleeved around the grinding rod 61, thus ensuring the static and dynamic calibration of the calibration cylinder 81 and the calibration roller 82 for the grinding rod 61, effectively avoiding the bending deformation of the grinding rod 61, and ensuring that the grinding rod 61 can normally perform precision grinding on the tooth surface; when the grinding is completed, the movable rod 4 moves in the direction away from the gear body 11. At this time, the first elastic member 72 slowly rebounds, and through the mutual cooperation of the main tooth plate 71, the transmission gear 73 and the driven tooth plate 74, the calibration cylinder 81 moves downward, and the calibration cylinder 81 can also further calibrate the grinding rod 61 when moving downward, thereby further avoiding the bending deformation of the grinding rod 61.

[0027] As Figures 3-6 shown, an outer cover 812 is provided on the outer periphery of the top of the calibration cylinder 81. A plurality of through holes 811 are longitudinally formed in the calibration cylinder 81. A fan blade 84 is rotatably installed in the through holes 811. A transmission assembly 83 is connected between the calibration roller 82 and the fan blade 84.

[0028] Further, a filter plate 85 is inclinedly installed in the through holes 811. The filter plate 85 is located above the fan blade 84. A plurality of discharge holes 814 are formed in the outer periphery of the calibration cylinder 81. The discharge holes 814 are communicated with the through holes 811. The filter plate 85 is inclined towards the discharge holes 814. A collection box 86 is provided on the outer periphery of the calibration cylinder 81. The discharge holes 814 are communicated with the collection box 86.

[0029] Further, two baffle plates 712 are provided on the top of the movable plate 711. The two baffle plates 712 are located above the gear body 11. The distance between the two baffle plates 712 is greater than the size of the tooth groove on the gear body 11.

[0030] It should be noted that some metal debris will be generated when the grinding rod 61 grinds the tooth surface. These metal debris may be in a state of flying everywhere. If these metal debris fly into other tooth grooves, when the grinding rod 61 subsequently grinds this tooth groove, the presence of metal debris between the grinding rod 61 and the tooth surface may cause damage to the tooth surface during grinding, and at the same time, it may also cause partial overload of the force on the surface of the grinding rod 61 and bending deformation. Therefore, corresponding structures are proposed to solve the above problems.

[0031] In one case of this embodiment, the transmission assembly 83 can be a combination of a pulley and a belt, or other components that can synchronously rotate the correction roller 82 and the fan blade 84.

[0032] In actual application of this embodiment, when the grinding rod 61 rotates to grind the tooth surface, the correction roller 82 rotates synchronously. Through the transmission of the transmission assembly 83, the fan blade 84 also rotates synchronously. When the fan blade 84 rotates, the air flow at the through hole 811 flows from top to bottom. In this way, the metal chips generated when the grinding rod 61 grinds the tooth surface fall downward under the guidance of gravity and air flow, and enter the through hole 811. Finally, under the guidance of the filter plate 85, they enter the collection box 86. In this way, the generated metal chips can be centrally collected, effectively avoiding the metal chips from splashing everywhere into other tooth grooves, and avoiding the presence of metal chips between the grinding rod 61 and the tooth surface when the grinding rod 61 subsequently grinds this tooth groove; avoiding damage to the tooth surface when the grinding rod 61 grinds, and avoiding bending deformation of the surface part of the grinding rod 61 due to excessive force. When the fan blade 84 rotates, it can guide the high-temperature air generated when the grinding rod 61 grinds downward, so that the air at the grinding rod 61 circulates, thereby dissipating heat from the grinding rod 61 and the tooth surface. On the one hand, this can effectively avoid bending deformation of the grinding rod 61 due to heat, and on the other hand, it can effectively avoid heat deformation of the tooth surface, avoiding the tooth surface not meeting the processing requirements. When the movable plate 711 abuts against the surface of the gear body 11, the two baffles 712 are placed on both sides of the tooth groove, which can further prevent metal chips from splashing into other tooth grooves.

[0033] As Figure 2 、 Figure 7 and Figure 8 shown, the intermittent rotation mechanism 9 includes: A ratchet wheel 96, with a ratchet wheel 96 fixed to the bottom end of the rotating rod 10; A fixing plate 91, with a fixing plate 91 fixed to the bottom of the table surface 2; A sliding plate 92, with a sliding plate 92 longitudinally slidably mounted on the fixing plate 91. An inclined groove 921 is formed on the side of the sliding plate 92 close to the ratchet wheel 96; A U-shaped frame 93, with two U-shaped frames 93 fixed to the fixing plate 91; A slider 94, with the slider 94 slidably mounted between the two U-shaped frames 93. A guide rod 942 is provided on the side of the slider 94 close to the sliding plate 92, and the guide rod 942 is sleeved in the inclined groove 921; A pushing tooth 95, with a support plate 941 provided on the slider 94. A pushing tooth 95 is rotatably mounted on the support plate 941. The pushing tooth 95 is stuck in one of the tooth grooves of the ratchet wheel 96. An elastic member two 951 is connected between the pushing tooth 95 and the slider 94; The ratchet 98, a connecting rod 971 is fixedly installed at the bottom of the table surface 2, the bottom end of the connecting rod 971 is fixedly installed with a U-shaped plate 97, a ratchet 98 is rotatably installed in the U-shaped plate 97, the ratchet 98 is stuck in one of the tooth grooves of the ratchet wheel 96, and an elastic member three 981 is connected between the ratchet 98 and the U-shaped plate 97.

[0034] Furthermore, a push plate 99 is fixedly installed at the bottom of the sliding plate 92, a connecting column 991 is fixedly installed at the bottom of the push plate 99, a support plate 911 is fixedly installed at the bottom of the fixing plate 91, the bottom edge part of the connecting column 991 abuts against the support plate 911, a push rod 34 is fixedly installed at the top of the fixed disk 31, and when the push rod 34 moves upward, it pushes the connecting column 991 upward.

[0035] In one case of this embodiment, both the elastic member two 951 and the elastic member three 981 can be springs, or other components that can elastically expand and contract. Among them, the elastic member two 951 and the elastic member three 981 make the push tooth 95 and the ratchet 98 always have a tendency to move in the direction of the ratchet wheel 96.

[0036] When this embodiment is actually applied, after grinding the tooth surface in one tooth groove, the telescopic member 3 is extended, the movable rod 4 moves away from the gear body 11, and the grinding rod 61 moves away from the tooth groove. When the telescopic member 3 is extended to a certain height, the push rod 34 pushes the connecting column 991 upward, the connecting column 991 drives the push plate 99 to push the sliding plate 92 upward. When the sliding plate 92 moves upward, the guide rod 942 on the slider 94 moves along the inclined groove 921, so that the slider 94 drives the push tooth 95 to push the ratchet wheel 96 to rotate a certain angle. The ratchet wheel 96 drives the gear body 11 to rotate by the angle of one tooth groove through the rotating rod 10. Thus, when the grinding rod 61 approaches the gear body 11 again, the grinding rod 61 is stuck in another tooth groove, and so on, so that the grinding rod 61 can grind the tooth surfaces in all the tooth grooves in the gear body 11; when grinding is required, the telescopic member 3 contracts, so that the push rod 34 moves downward, thereby making the connecting column 991 and the push plate 99 move downward slowly until the connecting column 991 abuts against the support plate 911. In this process, the sliding plate 92 moves downward, and the slider 94 drives the push tooth 95 to move. Since there is no limiting point on the surface in the moving direction of the push tooth 95 and the teeth of the ratchet wheel 96 at this time, and the ratchet 98 holds the ratchet wheel 96, the ratchet wheel 96 remains stationary at this time, so as to ensure that the grinding rod 61 is stuck in other tooth grooves; the above process can be simplified as that when the grinding rod 61 approaches the gear body 11, the gear body 11 does not rotate, and when the grinding rod 61 moves away from the gear body 11, the gear body 11 rotates by the angle of one tooth groove, so that the tooth surfaces in all the tooth grooves can be ground.

[0037] A processing method of a gear tooth surface finishing device, the method is applied to the above-mentioned gear tooth surface finishing device, and the method includes the following steps: Step S1: The gear body 11 to be processed is sleeved around the outer periphery of the rotating rod 10 through the central circular hole, and then the gear body 11 and the rotating rod 10 are fixed together by using nuts; Step S2: Start to contract the telescopic member 3. Through the fixed disk 31, the rotating ring 32 and several hinged rods 33, several movable rods 4 are pulled to move along the arc-shaped through groove 21 towards the gear body 11, so that the grinding rod 61 is stuck in the tooth groove of the gear body 11; Step S3: When the movable rod 4 moves towards the gear body 11, the movable plate 711 first contacts the outer surface of the gear body 11. The movable rod 4 continues to move, so that the movable plate 711 drives the main tooth plate 71 to move into the square tube 51. While the main tooth plate 71 is moving, the transmission gear 73 rotates. The transmission gear 73 drives the driven tooth plate 74 to move upward, so that the connecting plate 75 drives the correction cylinder 81 to move upward, so that the correction cylinder 81 is sleeved around the outer periphery of the grinding rod 61 to preliminarily correct the grinding rod 61. When the grinding rod 61 rotates to grind the tooth surface of the tooth groove, the correction roller 82 rotates accordingly and further corrects the grinding rod 61; Step S4: After the correction roller 82 rotates, it drives the fan blade 84 to rotate through the transmission assembly 83. After the fan blade 84 rotates, the air flow at the through hole 811 flows from top to bottom. In this way, the metal chips generated when the grinding rod 61 grinds the tooth surface enter the through hole 811 under the guidance of gravity and air flow, and finally enter the collection box 86 under the guidance of the filter plate 85; Step S5: When the tooth surface of the tooth groove of the gear body 11 is ground, the telescopic member 3 extends, so that the movable rod 4 moves away from the gear body 11, and the grinding rod 61 is away from the tooth groove. When the telescopic member 3 extends to a certain height, the push rod 34 pushes the connecting column 991 to move upward. The connecting column 991 drives the push plate 99 to push the sliding plate 92 to move upward. When the sliding plate 92 moves upward, the guide rod 942 on the slider 94 moves along the inclined groove 921, so that the slider 94 drives the push tooth 95 to push the ratchet 96 to rotate a certain angle. The ratchet 96 drives the gear body 11 to rotate by an angle of one tooth groove through the rotating rod 10, and then operate the above steps to make the grinding rod 61 stuck in another tooth groove, so as to realize the grinding of all tooth grooves on the gear body 11.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A gear tooth surface finishing device, comprising a base (1), characterized in that, The device further includes: A tabletop (2). A plurality of brackets (12) are provided at the top of the base (1). The tops of the plurality of brackets (12) are fixed with a tabletop (2). A rotating rod (10) is longitudinally penetrated and installed at the central position of the tabletop (2). A gear body (11) is fixedly installed on the periphery of the rotating rod (10) through a nut. A movable rod (4). A telescopic member (3) is installed on the base (1). The output end of the telescopic member (3) is provided with a fixed disk (31). A rotating ring (32) is rotatably installed on the periphery of the fixed disk (31). A plurality of hinged rods (33) are hinged on the periphery of the rotating ring (32). The other end of the hinged rod (33) is hinged with a movable rod (4). A plurality of arc-shaped through grooves (21) are formed in the tabletop (2) in a circular array. The movable rod (4) passes through the arc-shaped through groove (21). A limiting block (41) is provided on the movable rod (4). A limiting groove (211) is formed in the arc-shaped through groove (21). The limiting block (41) is sleeved in the limiting groove (211). A grinding rod (61). A frame (5) is provided at the top of the movable rod (4). A driving member (6) is installed at the top of the frame (5) through a connecting block (52). A grinding rod (61) is installed at the output end of the driving member (6). A driving mechanism (7). A driving mechanism (7) is installed in the frame (5). A correction mechanism (8). The correction mechanism (8) includes a correction cylinder (81). The correction cylinder (81) is sleeved on the periphery of the grinding rod (61). The correction cylinder (81) is connected to the driving mechanism (7). The driving mechanism (7) drives the correction cylinder (81) to move up and down. An intermittent rotation mechanism (9). An intermittent rotation mechanism (9) is installed at the bottom of the tabletop (2). The intermittent rotation mechanism (9) is connected to the rotating rod (10).

2. The gear tooth surface finishing device according to claim 1, characterized in that, Installation grooves (813) are formed on the inner wall of the correction cylinder (81). A plurality of correction rollers (82) are longitudinally rotatably installed in the installation grooves (813). The correction rollers (82) are attached to the surface of the grinding rod (61).

3. The gear tooth surface finishing device according to claim 2, characterized in that, The driving mechanism (7) includes: A main toothed plate (71). A square tube (51) is provided horizontally on the frame (5). The main toothed plate (71) is movably sleeved in the square tube (51). An elastic member I (72) is connected between the main toothed plate (71) and the square tube (51). The other end of the main toothed plate (71) is hinged with a movable plate (711). A transmission gear (73). A transmission gear (73) is rotatably installed in the frame (5). The main toothed plate (71) and the transmission gear (73) are meshed with each other. A secondary toothed plate (74). A secondary toothed plate (74) is longitudinally slidably installed in the frame (5). The secondary toothed plate (74) is close to the square tube (51). The secondary toothed plate (74) and the transmission gear (73) are meshed with each other. A connecting plate (75) is provided at the bottom of the secondary toothed plate (74). The other end of the connecting plate (75) is fixed on the surface of the correction cylinder (81).

4. The gear tooth surface finishing device according to claim 2, characterized in that, An outer cover (812) is provided on the outer periphery of the top of the calibration cylinder (81). A number of through holes (811) are longitudinally formed in the calibration cylinder (81). A fan blade (84) is rotatably installed in the through holes (811). A transmission assembly (83) is connected between the correction roller (82) and the fan blade (84).

5. The gear tooth surface finishing device according to claim 4, characterized in that, A filter plate (85) is inclinedly installed in the through holes (811). The filter plate (85) is located above the fan blade (84). A number of discharge holes (814) are formed in the outer periphery of the calibration cylinder (81). The discharge holes (814) communicate with the through holes (811). The filter plate (85) is inclined towards the discharge holes (814). A collection box (86) is provided on the outer periphery of the calibration cylinder (81). The discharge holes (814) communicate with the collection box (86).

6. The gear tooth surface finishing device according to claim 3, characterized in that, Two baffles (712) are provided on the top of the movable plate (711). The two baffles (712) are located above the gear body (11). The distance between the two baffles (712) is greater than the size of the tooth grooves on the gear body (11).

7. The gear tooth surface finishing device according to claim 1, characterized in that, The intermittent rotation mechanism (9) includes: A ratchet wheel (96), and the ratchet wheel (96) is fixed to the bottom end of the rotating rod (10); A fixing plate (91), and the fixing plate (91) is fixed to the bottom of the tabletop (2); A sliding plate (92), and the sliding plate (92) is longitudinally slidably installed on the fixing plate (91). An inclined slot (921) is formed on the side of the sliding plate (92) close to the ratchet wheel (96); A U-shaped frame (93), and two U-shaped frames (93) are fixed to the fixing plate (91); A slider (94), and the slider (94) is slidably installed between the two U-shaped frames (93). A guide rod (942) is provided on the side of the slider (94) close to the sliding plate (92). The guide rod (942) is sleeved in the inclined slot (921); A pushing tooth (95), and a support plate (941) is provided on the slider (94). A pushing tooth (95) is rotatably installed on the support plate (941). The pushing tooth (95) is stuck in one of the tooth grooves of the ratchet wheel (96). An elastic member two (951) is connected between the pushing tooth (95) and the slider (94); A ratchet tooth (98), and a connecting rod (971) is fixed to the bottom of the tabletop (2). The bottom end of the connecting rod (971) is fixed to a U-shaped plate (97). A ratchet tooth (98) is rotatably installed in the U-shaped plate (97). The ratchet tooth (98) is stuck in one of the tooth grooves of the ratchet wheel (96). An elastic member three (981) is connected between the ratchet tooth (98) and the U-shaped plate (97).

8. The gear tooth surface finishing device according to claim 7, characterized in that, A push plate (99) is fixed to the bottom of the sliding plate (92). A connecting column (991) is fixed to the bottom of the push plate (99). A support plate (911) is fixed to the bottom of the fixing plate (91). The bottom edge portion of the connecting column (991) abuts against the support plate (911). A push rod (34) is fixed to the top of the fixed disk (31). When the push rod (34) moves upward, it pushes the connecting column (991) upward.

9. A processing method of a gear tooth surface finishing device, which is applied to the gear tooth surface finishing device as described in any one of the above claims 1-8. The method includes the following steps: Step S1: The gear body (11) to be processed is sleeved around the rotating rod (10) through the central circular hole, and then the gear body (11) is fixed to the rotating rod (10) by using a nut; Step S2: Start the telescopic member (3) to contract. Through the fixed disk (31), the rotating ring (32) and several hinge rods (33), several movable rods (4) are pulled to move along the arc-shaped through groove (21) towards the gear body (11), so that the grinding rod (61) is stuck in the tooth groove of the gear body (11); Step S3: When the movable rod (4) moves towards the gear body (11), the movable plate (711) first contacts the outer surface of the gear body (11). The movable rod (4) continues to move, so that the movable plate (711) drives the main tooth plate (71) to move into the square tube (51). While the main tooth plate (71) is moving, the transmission gear (73) rotates, and the transmission gear (73) drives the driven tooth plate (74) to move upward, so that the connecting plate (75) drives the correction cylinder (81) to move upward, so that the correction cylinder (81) is sleeved around the grinding rod (61) to preliminarily correct the grinding rod (61). When the grinding rod (61) rotates to grind the tooth surface of the tooth groove, the correction roller (82) rotates accordingly and further corrects the grinding rod (61); Step S4: After the correction roller (82) rotates, it drives the fan blade (84) to rotate through the transmission assembly (83). After the fan blade (84) rotates, the air flow at the through hole (811) flows from top to bottom. In this way, the metal debris generated when the grinding rod (61) grinds the tooth surface enters the through hole (811) under the guidance of gravity and air flow, and finally enters the collection box (86) under the guidance of the filter plate (85); Step S5: When the tooth surface of the tooth groove of the gear body (11) is ground, the telescopic member (3) extends, so that the movable rod (4) moves away from the gear body (11), and the grinding rod (61) is separated from the tooth groove. When the telescopic member (3) extends to a certain height, the push rod (34) pushes the connecting column (991) to move upward, and the connecting column (991) drives the push plate (99) to push the sliding plate (92) to move upward. When the sliding plate (92) moves upward, the guide rod (942) on the slider (94) moves along the inclined groove (921), so that the slider (94) drives the push tooth (95) to push the ratchet wheel (96) to rotate a certain angle. The ratchet wheel (96) drives the gear body (11) to rotate by an angle of one tooth groove through the rotating rod (10). Then, operate the above steps again to make the grinding rod (61) stuck in another tooth groove, so as to realize the grinding of all tooth grooves on the gear body (11).

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