A high-precision gear machining device

Abstract

The application discloses a high-precision gear machining device, which comprises a mounting disc, a clamping mechanism is arranged in the mounting disc, the clamping mechanism is driven by a driving mechanism to rotate in a circle according to a set rotation angle, a cutting mechanism is arranged on one side of the mounting disc and is used for cutting a tooth groove of a clamped gear to be machined, and a cutting pressure balance mechanism is arranged on a side, away from the mounting disc, of the cutting mechanism and is used for balancing the cutting pressure of the cutting mechanism when the cutting mechanism cuts the gear to be machined downward and reducing the extrusion force generated on the side, away from the mounting disc, of the cutting mechanism when the cutting mechanism cuts the gear to be machined. The cutting pressure balance mechanism is arranged on the side, away from the mounting disc, of the cutting tool, the cutting force is balanced, the gear deformation is reduced, the machining precision is improved, the ejection linkage mechanism is integrated, the stress is eliminated during the cutting process, the same driving force is used for deburring after the machining is completed, the subsequent processing procedure is simplified, and the efficiency is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of gear processing technology, and more specifically to a high-precision gear processing device. Background Technology

[0002] Gear machining equipment is a type of specialized machinery used for the production and processing of gears. Its main function is to precisely cut and shape raw gear materials to manufacture gears with the required tooth profile, precision, and dimensions. These devices can employ a variety of machining methods, including milling, grinding, and rolling, all designed to ensure the accuracy and quality of the gears.

[0003] When cutting the tooth grooves of a gear from top to bottom using a cutting tool, the tool is positioned on one side of the gear. The tool must both rotate and move vertically to contact and machine the gear. To facilitate machining, a connecting section is usually reserved on one side of the gear for clamping and fixing during machining. This reserved connecting section is cut off after the tooth grooves are machined.

[0004] However, in this type of machining method, the cutting tool usually only acts on one side of the gear when it comes into contact with the gear to be machined, and performs a top-down grooving action. This one-sided cutting method may generate a seesaw effect-like pressure on the opposite side of the gear. Although the gear deformation caused by this pressure is usually small, in high-precision gear machining, this one-sided cutting force may still cause a certain degree of deformation on the opposite side of the gear. In applications with extremely high precision requirements, even a small deformation may cause the gear to fail to meet strict precision standards.

[0005] Therefore, although traditional gear processing equipment can work effectively in many situations, it often fails to meet the accuracy requirements in situations where high-precision processing is particularly needed. This limitation has prompted people to seek more accurate and efficient gear processing methods and equipment to meet the urgent needs of modern machinery industry for high-precision gears. Summary of the Invention

[0006] To address the aforementioned problems, this invention provides a high-precision gear machining device. By setting a cutting pressure balancing mechanism on the force-reversing side of the cutting tool, the cutting force is balanced, gear deformation is reduced, and machining accuracy is improved, effectively overcoming the shortcomings of the prior art.

[0007] This invention is achieved through the following technical solution: a high-precision gear processing device, comprising:

[0008] The mounting plate has a clamping mechanism installed inside for clamping the reserved clamping part of the gear to be processed. A driving mechanism is installed on the top of the mounting plate, which drives the clamping mechanism to rotate in a circle according to a set rotation angle.

[0009] A cutting mechanism, located on one side of the mounting plate, is used to perform tooth groove cutting on the clamped gear to be processed;

[0010] A cutting pressure balancing mechanism is installed on the opposite side of the cutting mechanism to balance the cutting pressure when the cutting mechanism cuts the gear to be processed downwards, reduce the extrusion force generated on the opposite side when the cutting mechanism cuts the gear to be processed, and remove burrs in the tooth groove in conjunction with the cutting mechanism.

[0011] As a preferred technical solution, when the cutting mechanism performs tooth groove cutting on the gear to be processed from top to bottom, the cutting pressure balancing mechanism follows the cutting mechanism to perform an ejection action, thereby achieving balance between the cutting end and the cutting divergence end.

[0012] The cutting pressure balancing mechanism has an ejection linkage mechanism. When the cutting pressure balancing mechanism ejects downward following the cutting mechanism and contacts the upper end face of the gear to be processed, if it corresponds to the tooth groove of the gear to be processed, the ejection linkage mechanism extends into the tooth groove and passes through the tooth groove to the bottom outside of the gear to be processed.

[0013] If there is no tooth groove corresponding to the gear to be processed, the ejector linkage mechanism will contact the upper end face of the gear to be processed and be subjected to pressure.

[0014] As a preferred technical solution, the cutting pressure balancing mechanism includes a drive cylinder, a connecting plate, a telescopic connecting rod, a balancing pressure sleeve, and an ejection linkage mechanism disposed within the balancing pressure sleeve.

[0015] The drive cylinder is fixedly mounted on the mounting plate. The output end of the drive cylinder is connected to the connecting plate. The telescopic connecting rod is set as at least two symmetrical rods. One side of the telescopic connecting rod is fixedly connected to the bottom of the connecting plate, and the other side of the telescopic connecting rod is fixedly connected to the top of the balance pressure sleeve. A receiving cavity is formed inside the balance pressure sleeve for installing the ejection linkage mechanism.

[0016] It also includes a first connecting ring, one side of which is fixedly connected to the outer wall of the mounting plate. A first annular hole is provided in the middle of the first connecting ring, and the balancing pressure sleeve passes through the first annular hole and moves up and down along the first connecting ring.

[0017] The top of the ejection linkage mechanism does not contact the connecting plate, forming a stroke gap cavity. When the drive cylinder drives the ejection, the connecting plate drives downward, causing the balance pressure sleeve to first contact the top end face of the gear to be processed. When the connecting plate continues to press down, the lower end face of the connecting plate contacts the ejection linkage mechanism and applies pressure to the ejection linkage mechanism. When the drive cylinder does not eject, the bottom of the balance pressure sleeve does not contact the top end face of the gear to be processed.

[0018] As a preferred technical solution, the ejection linkage mechanism includes an ejection sleeve, a second connecting ring, an ejection telescopic piston, an ejection rod, and a deburring knife. One side of the second connecting ring is fixedly connected to the outer wall of the mounting plate, and a through second annular hole is provided in the middle of the second connecting ring. The ejection sleeve passes through the second annular hole and extends into the receiving cavity inside the balance pressure sleeve. The ejection telescopic piston is movably installed at the bottom of the ejection sleeve. The top of the ejection rod is fixedly connected to the bottom of the ejection telescopic piston. The deburring knife is detachably connected to the ejection rod.

[0019] When the connecting plate is not in contact with the ejector sleeve, the bottom surface of the burr removal tool is not in contact with the upper end surface of the gear to be processed. The top of the ejector sleeve is also provided with a limiting plate with an outer diameter larger than the ejector sleeve. A first spring is installed on the ejector sleeve between the limiting plate and the second connecting ring, and the first spring pushes the ejector sleeve upward.

[0020] The ejector sleeve has a piston chamber. One end of the ejector telescopic piston is sealed and extends into the piston chamber. A second spring is installed in the piston chamber. The second spring pushes the ejector telescopic piston outward. The ejector sleeve is provided with air inlet and outlet holes.

[0021] As a preferred technical solution, the burr removal knife has blade surfaces on both sides, and the outer contour of the burr removal knife corresponds to the outer contour of the tooth groove, so that the burr removal knife can correspond to the tooth groove. When the burr removal knife is inserted into the tooth groove, the blade surfaces on both sides of the burr removal knife remove the burrs in the tooth groove. The bottom surface of the ejector rod is provided with screw locking holes, and each burr removal knife is provided with a through hole corresponding to the screw locking hole. The burr removal knife and the ejector rod are fixedly connected by screws.

[0022] As a preferred technical solution, the balancing pressure sleeve has an avoidance groove opened from bottom to top corresponding to the position of the burr removal knife. The burr removal knife is located in the avoidance groove and extends through the avoidance groove to the outside of the balancing pressure sleeve.

[0023] As a preferred technical solution, the balancing pressure sleeve is further provided with a storage cavity. The accommodating cavity of the balancing pressure sleeve is provided with multiple suction holes for sucking up the removed burrs. The bottom of the balancing pressure sleeve is provided with a discharge port for discharging the collected burrs. The discharge port is sealed by a sealing plate, and the sealing plate is fixed to the balancing pressure sleeve with screws. An elastic rubber contact layer is provided on the side of the sealing plate that contacts the gear to be processed. A negative pressure suction tube is connected to the balancing pressure sleeve, and a negative pressure pump is connected to the other side of the negative pressure suction tube. The negative pressure pump generates negative pressure suction at the suction hole. An isolation mesh cover is provided at the air outlet of the storage cavity.

[0024] As a preferred technical solution, each telescopic connecting rod includes a telescopic fixed rod and a telescopic movable rod. One side of the telescopic fixed rod is fixedly connected to the connecting plate. One end of the telescopic movable rod is inserted into the telescopic fixed rod, and the other end extends out of the telescopic fixed rod and is fixedly connected to the upper end face of the balance pressure sleeve. A third spring is installed inside the telescopic fixed rod, and the third spring pushes the telescopic movable rod outward.

[0025] As a preferred technical solution, the cutting mechanism includes a fixed plate, a lead screw transmission mechanism is mounted on the fixed plate, a movable plate is mounted on the lead screw transmission mechanism, a cutting head is mounted on the movable plate, a cutting head drive motor is mounted on the other side of the movable plate, and a longitudinal groove is opened on the fixed plate corresponding to the cutting head drive motor, through which the cutting head drive motor passes.

[0026] As a preferred technical solution, the clamping mechanism includes multiple jaws, which fix and clamp the reserved clamping part of the gear to be processed.

[0027] The beneficial effects of this invention are: This invention innovatively sets a cutting pressure balancing mechanism on the side of the cutting force of the cutting tool that is away from the cutting force. By using the cutting pressure balancing mechanism to balance the cutting force on one side, the extrusion stress of the entire gear to be processed is reduced during the cutting process, thereby reducing deformation and improving the overall accuracy of the gear after processing.

[0028] In addition, the present invention incorporates an ejection linkage mechanism on the cutting pressure balancing mechanism. During normal use, this ejection linkage mechanism functions as a stress relief component alongside the cutting pressure balancing mechanism. However, when the tooth groove of the gear to be processed is located at the ejection linkage mechanism position after cutting, the ejection linkage mechanism utilizes the downward driving force of the cutting pressure balancing mechanism to eject it and extend it into the tooth groove. Using the same driving force of the cutting pressure balancing mechanism and the same downward driving action, the tooth groove after cutting is simultaneously deburred. The entire process only requires synchronous driving and does not require deburring equipment, which can reduce subsequent processing of the gear and greatly improve efficiency. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0031] Figure 2This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0032] Figure 3 This is a schematic diagram of the clamping mechanism of the present invention;

[0033] Figure 4 This is a schematic diagram of the cutting pressure balancing mechanism of the present invention. Figure 1 ;

[0034] Figure 5 This is a schematic diagram of the cutting pressure balancing mechanism of the present invention. Figure 2 ;

[0035] Figure 6 This is a schematic diagram of the ejection linkage mechanism of the present invention;

[0036] Figure 7 This is a schematic diagram of the internal cross-section of the cutting pressure balancing mechanism of the present invention;

[0037] Explanation of reference numerals in the attached figures:

[0038] 1. Drive mechanism; 2. Drive cylinder; 4. Gear to be processed; 5. Cutting pressure balancing mechanism; 6. Mounting plate; 7. Mounting plate; 8. Cutting head; 9. Gear groove; 11. Movable plate; 12. Cutting head drive motor; 13. Longitudinal groove; 14. Fixed plate; 15. Gripper; 41. Reserved clamping part; 51. Second connecting ring; 52. First connecting ring; 53. Ejector sleeve; 54. Balance pressure sleeve; 55. Deburring knife; 56. Clearance groove; 57. Suction hole; 58. First spring; 59. Negative pressure suction tube; 60. Negative pressure pump; 61. Connecting plate; 62. Telescopic fixed rod; 63. Limiting plate; 65. Telescopic movable rod; 66. Receiving cavity; 67. Ejector rod; 68. Screw; 69. Sealing plate; 70. Ejector telescopic piston; 71. Second spring; 72. Storage cavity. Detailed Implementation

[0039] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0040] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0041] like Figure 1 and Figure 2As shown, a high-precision gear processing device of the present invention includes a mounting plate 6, in which a clamping mechanism is installed for clamping a reserved clamping part 41 of the gear 4 to be processed. After the tooth groove 9 of the gear 4 to be processed is processed, the reserved clamping part 41 needs to be cut off. By forming the reserved clamping part 41, it is convenient to clamp the gear 4 to be processed. A driving mechanism 1 is installed on the top of the mounting plate 6. The driving mechanism 1 drives the clamping mechanism to rotate in a circle according to a set rotation angle. In this embodiment, the driving mechanism 1 adopts a stepper motor, which can control the rotation angle of the clamping mechanism each time to realize each processing of the gear 4 to be processed.

[0042] In order to achieve the cutting of the tooth groove 9 of the gear 4 to be processed, this embodiment also includes a cutting mechanism. The cutting mechanism is located on one side of the mounting plate 6 and is used to cut the tooth groove 9 of the gear 4 to be processed after clamping. The cutting operation is from top to bottom and is located on one side of the gear 4 to be processed. Each time the gear 4 to be processed rotates by a fixed angle, the cutting mechanism rotates and moves vertically downward to complete the cutting of the tooth groove 9 of the gear 4 to be processed. Different cutting tools can be selected for different tooth grooves 9.

[0043] Since the cutting mechanism is located on one side of the gear 4 to be processed, when it cuts the tooth groove 9 downwards, it will generate a squeezing force when it contacts the gear 4 to be processed. Due to the clamping position in the middle, a larger squeezing force will be generated on the other side opposite to the cutting mechanism. Therefore, the position of the gear 4 to be processed on the other side opposite to the cutting mechanism and the clamping position will generate an upward squeezing force. Therefore, in this embodiment, a cutting pressure balancing mechanism 5 is also included, which is set on the back surface of the cutting mechanism. It is used to balance the cutting pressure when the cutting mechanism cuts the gear 4 to be processed downwards, reduce the squeezing force generated on the back surface when the cutting mechanism cuts the gear 4 to be processed, and remove burrs in the tooth groove 9 in conjunction. The cutting pressure balancing mechanism 5 can balance the cutting pressure of the cutting mechanism, reduce the influence of the cutting force on the gear 4 to be processed, reduce the local deformation of the gear 4 to be processed, and increase the accuracy of the gear 4 after processing.

[0044] When the cutting mechanism cuts the tooth groove 9 of the gear 4 to be processed from top to bottom, the cutting pressure balancing mechanism 5 follows the cutting mechanism to make an ejection action, so as to achieve the balance between the cutting end and the cutting opposite end. The cutting pressure balancing mechanism 5 follows the cutting mechanism every time. When the cutting mechanism contacts the gear 4 to be processed, the cutting pressure balancing mechanism 5 also contacts the other side of the gear 4 to be processed, balancing the pressure on both sides and reducing the impact of unilateral cutting on the gear accuracy.

[0045] It is worth noting that the cutting pressure balancing mechanism 5 of the present invention has an ejection linkage mechanism. When the cutting pressure balancing mechanism 5 ejects downward following the cutting mechanism and contacts the upper end face of the gear 4 to be processed, if it corresponds to the tooth groove 9 of the gear 4 to be processed, the ejection linkage mechanism extends into the tooth groove 9 and passes through the tooth groove 9 to the bottom outer side of the gear 4 to be processed. Therefore, each time the cutting pressure balancing mechanism 5 presses down, if the tooth groove 9 of the gear 4 to be processed at the bottom corresponds to the ejection linkage mechanism, the ejection linkage mechanism can be inserted into the tooth groove 9. Therefore, by using the linkage ejection action of the ejection linkage mechanism, the burrs of the tooth groove 9 can be removed. The burr removal action is completed at the same time as each pressure balancing. With the structure of the present invention, there is no need to perform a separate deburring action on the processed gear, saving the use of deburring equipment, greatly improving work efficiency, and making reasonable use of the pressing action of pressure balancing.

[0046] If there is no corresponding tooth groove 9 for the gear 4 to be processed, the ejection linkage mechanism contacts the upper end face of the gear 4 to be processed and is pressed, maintaining the downward pressure balance action with the cutting pressure balancing mechanism 5.

[0047] Among them, such as Figure 4 and Figure 5 As shown, the cutting pressure balancing mechanism 5 includes a drive cylinder 2, a connecting plate 61, a telescopic connecting rod, a balancing pressure sleeve 54, and an ejection linkage mechanism disposed within the balancing pressure sleeve 54.

[0048] The drive cylinder 2 is fixedly installed on the mounting plate 7. The output end of the drive cylinder 2 is connected to the connecting plate 61. The telescopic connecting rod is set as at least two symmetrical rods. One side of the telescopic connecting rod is fixedly connected to the bottom of the connecting plate 61, and the other side of the telescopic connecting rod is fixedly connected to the top of the balance pressure sleeve 54. A receiving cavity 66 is formed inside the balance pressure sleeve 54 for installing the ejection linkage mechanism.

[0049] It also includes a first connecting ring 52, one side of which is fixedly connected to the outer wall of the mounting plate 6. A first annular hole is provided in the middle of the first connecting ring 52. The balancing pressure sleeve 54 passes through the first annular hole and moves up and down along the first connecting ring 52.

[0050] The top of the ejection linkage mechanism does not contact the connecting plate 61, forming a stroke gap cavity. When the drive cylinder 2 drives the ejection, the connecting plate 61 drives downward, causing the balancing pressure sleeve 54 to first contact the top end face of the gear 4 to be processed. When the connecting plate 61 continues to press down, the lower end face of the connecting plate 61 contacts the ejection linkage mechanism and applies pressure to it. When the drive cylinder 2 is not ejecting, the bottom of the balancing pressure sleeve 54 does not contact the top end face of the gear 4 to be processed, allowing the gear 4 to achieve normal circumferential rotation. When the drive cylinder 2 ejects, it will only drive the balancing pressure sleeve 54 first, and will not directly drive the ejection linkage mechanism. This achieves the positioning of the gear 4 to be processed first, and then drives the ejection linkage mechanism to achieve stable operation.

[0051] like Figure 6 and Figure 7 As shown, the ejection linkage mechanism includes an ejection sleeve 53, a second connecting ring 51, an ejection telescopic piston 70, an ejection rod 67, and a deburring knife 55. One side of the second connecting ring 51 is fixedly connected to the outer wall of the mounting plate 6. A second annular hole is provided in the middle of the second connecting ring 51. The ejection sleeve 53 passes through the second annular hole and extends into the receiving cavity 66 inside the balancing pressure sleeve 54. The ejection telescopic piston 70 is movably installed at the bottom of the ejection sleeve 53. The top of the ejection rod 67 is fixedly connected to the bottom of the ejection telescopic piston 70. The deburring knife 55 is detachably connected to the ejection rod 67. Because of the second connecting ring 51, the action of the ejection linkage mechanism is independent. The action of the balancing pressure sleeve 54 will not affect the ejection sleeve 53. The purpose of the first connecting ring 52 and the second connecting ring 51 is to position and guide, so as to realize the smooth lifting and lowering of the balancing pressure sleeve 54 and the ejection sleeve 53, realize the up and down guidance during lifting and lowering, and complete the independent action.

[0052] When the connecting plate 61 is not in contact with the ejector sleeve 53, the bottom surface of the deburring knife 55 is not in contact with the upper end surface of the gear 4 to be processed. The top of the ejector sleeve 53 is also provided with a limiting plate 63 with an outer diameter larger than the ejector sleeve 53. A first spring 58 is installed on the ejector sleeve 53 between the limiting plate 63 and the second connecting ring 51. The first spring 58 pushes the ejector sleeve 53 upward. The first spring 58 is used to reset the ejector sleeve 53. When the downward pressure of the connecting plate 61 is removed, the first spring 58 can reset the ejector sleeve 53.

[0053] The ejector sleeve 53 has a piston chamber. One end of the ejector telescopic piston 70 is sealed and extends into the piston chamber. A second spring 71 is installed in the piston chamber. The second spring 71 pushes the ejector telescopic piston 70 outward. The ejector sleeve 53 is provided with an air inlet and outlet hole. The second spring 71 ensures that the ejector telescopic piston 70 is always pushed out of the ejector sleeve 53. The air inlet and outlet hole is used for the normal extension and retraction of the ejector telescopic piston 70, completing the inward retraction and ejection, and solving the airtightness problem.

[0054] The action process is as follows:

[0055] After the gear 4 to be processed rotates to a fixed angle, the drive cylinder 2 follows the cutting mechanism and presses down. The drive cylinder 2 drives the connecting plate 61 to descend, which in turn pushes the balance pressure sleeve 54 to descend via the telescopic connecting rod. After descending, the balance pressure sleeve 54 contacts the top end face of the gear 4 to be processed. As the balance pressure sleeve 54 continues to descend, the telescopic connecting rod is gradually compressed, and the connecting plate 61 will contact the ejector sleeve 53, which was not originally in contact. At this time, the connecting plate 61 pushes the ejector sleeve 53 to descend. The descent of the ejector sleeve 53 drives the ejector telescopic piston 70 and the ejector rod 67 to move downward, eventually causing the lower end face of the deburring tool 55 to contact the top end face of the gear 4 to be processed. If the tooth groove 9 of the gear 4 to be processed at the bottom corresponds exactly to the deburring tool 55, then the deburring tool 55 will... As the ejector sleeve 53 continues to descend, it extends into the tooth groove 9. During the descent of the ejector sleeve 53, the bottom of the balancing pressure sleeve 54 is in contact with the top end face of the gear 4 to be processed. Therefore, the telescopic connecting rod located at the top of the balancing pressure sleeve 54 will be continuously pressurized, and the deburring knife 55 will continue to descend until it passes through the tooth groove 9. The deburring knife 55 can then remove the burrs on the inner wall of the tooth groove 9, achieving a synchronous effect. However, if the gear 4 to be processed has not yet been processed into the tooth groove 9 when the deburring knife 55 descends, the ejector telescopic movement will retract into the ejector sleeve 53, and the second spring 71 will be compressed. The bottom surface of the deburring knife 55 will contact the upper end face of the gear 4 to be processed. A rubber layer can be provided at the bottom of the deburring knife 55 to increase the softness of the contact with the gear 4 to be processed.

[0056] The deburring blade 55 has cutting edges on both sides, and its outline corresponds to the outline of the tooth groove 9, ensuring that the deburring blade 55 can align with the tooth groove 9. When the deburring blade 55 is engaged in the tooth groove 9, the cutting edges on both sides of the deburring blade 55 remove the burrs within the tooth groove 9. The bottom surface of the ejector rod 67 is provided with screw 68 locking holes, and each deburring blade 55 has a through hole corresponding to the screw 68 locking hole. The deburring blade 55 and the ejector rod 67 are fixedly connected by screws 68. When processing different gears and needing to cut different tooth grooves 9, different deburring blades 55 can be replaced, simply by aligning the deburring blade 55 with the shape of the tooth groove 9, thus achieving the purpose of removing burrs with each cut.

[0057] The balancing pressure sleeve 54 has a clearance groove 56 from bottom to top corresponding to the position of the burr removal knife 55. The burr removal knife 55 is located in the clearance groove 56 and extends through the clearance groove 56 to the outside of the balancing pressure sleeve 54. When the balancing pressure sleeve 54 is positioned on the upper end of the gear 4 to be processed, the burr removal knife 55 can move up and down along the clearance groove 56.

[0058] In a preferred embodiment, the balancing pressure sleeve 54 of the present invention is further provided with a storage cavity 72, such as... Figure 7 As shown, the accommodating cavity 66 of the balancing pressure sleeve 54 is provided with multiple suction holes 57 for sucking up the removed burrs. The bottom of the balancing pressure sleeve 54 is provided with a discharge port for discharging the collected burrs. The discharge port is sealed by a sealing plate 69. The sealing plate 69 is fixed to the balancing pressure sleeve 54 with a screw 68. The side of the sealing plate 69 that contacts the gear 4 to be processed is provided with an elastic rubber contact layer to increase the contact softness and prevent scratching the surface of the gear 4 to be processed. A negative pressure suction tube 59 is connected to the balancing pressure sleeve 54. The other side of the negative pressure suction tube 59 is connected to a negative pressure pump 60. The negative pressure pump 60 generates negative pressure suction at the suction hole 57. An isolation mesh cover is provided at the air outlet of the storage cavity. During the entire deburring process, the negative pressure pump 60 can be used to suck up the removed burrs, reducing the subsequent burr cleaning action and reducing the impact of burrs on gear processing. The sealing plate 69 can be removed to take out the burrs in the storage cavity and then the sealing plate 69 can be installed again.

[0059] Each telescopic connecting rod includes a telescopic fixed rod 62 and a telescopic movable rod 65. One side of the telescopic fixed rod 62 is fixedly connected to the connecting plate 61. One end of the telescopic movable rod 65 is inserted into the telescopic fixed rod 62, and the other end extends out of the telescopic fixed rod 62 and is fixedly connected to the upper end face of the balancing pressure sleeve 54. A third spring is installed inside the telescopic fixed rod 62. The third spring pushes the telescopic movable rod 65 outward. When the telescopic movable rod 65 retracts, the third spring is compressed, thereby realizing the continued descent action of the push-out linkage mechanism.

[0060] Among them, such as Figure 1 and Figure 2 As shown, the cutting mechanism includes a fixed plate 14, a lead screw transmission mechanism is mounted on the fixed plate 14, a movable plate 11 is mounted on the lead screw transmission mechanism, a cutting head 8 is mounted on the movable plate 11, and a cutting head drive motor 12 is mounted on the other side of the movable plate 11. A longitudinal groove 13 is opened on the fixed plate 14 corresponding to the cutting head drive motor 12, and the cutting head drive motor 12 passes through the longitudinal groove 13.

[0061] like Figure 3 As shown, the clamping mechanism includes multiple jaws 15, which fix and clamp the reserved clamping part 41 of the gear 4 to be processed. The clamping mechanism clamps the entire gear 4 to be processed. After processing, the reserved clamping part 41 is cut off. The clamping mechanism is driven by the drive mechanism 1 to rotate by an angle each time, and the cutting mechanism performs the cutting processing of the tooth groove 9.

[0062] The present invention innovatively sets a cutting pressure balancing mechanism 5 on the side of the cutting force applied by the cutting tool away from the cutting force. By using the cutting pressure balancing mechanism 5 to balance the cutting force on one side, the extrusion stress of the entire gear 4 to be processed is reduced during the cutting process, thereby reducing deformation and improving the overall accuracy of the gear after processing.

[0063] In addition, the present invention provides an ejection linkage mechanism linked to the cutting pressure balancing mechanism 5. Under normal use, the ejection linkage mechanism is used as a stress relief component along with the cutting pressure balancing mechanism 5. However, when the tooth groove 9 of the gear 4 to be processed is located at the ejection linkage mechanism position after cutting, the ejection linkage mechanism will use the downward driving force of the cutting pressure balancing mechanism 5 to eject it and extend it into the tooth groove 9. Using the same driving force of the cutting pressure balancing mechanism 5 and the same driving downward action, the tooth groove 9 after cutting is deburred synchronously. The whole process only requires synchronous driving and does not require the use of deburring equipment, which can reduce the subsequent processing of the gear and greatly improve efficiency.

[0064] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A high-precision gear machining device, characterized in that, include: Mounting disc (6), the mounting disc (6) is equipped with a clamping mechanism for clamping the reserved clamping part (41) of the gear (4) to be processed, and a driving mechanism (1) is installed on the top of the mounting disc (6). The clamping mechanism is driven to rotate in a circle according to a set rotation angle by the driving mechanism (1). The cutting mechanism is located on one side of the mounting plate (6) and is used to perform tooth groove (9) cutting on the clamped gear (4); A cutting pressure balancing mechanism (5) is provided on the opposite side of the cutting mechanism to balance the cutting pressure when the cutting mechanism cuts the gear (4) to be processed downwards, reduce the extrusion force generated on the opposite side when the cutting mechanism cuts the gear (4) to be processed, and remove burrs in the tooth groove (9) in conjunction with the cutting mechanism. When the cutting mechanism cuts the tooth groove (9) of the gear (4) to be processed from top to bottom, the cutting pressure balancing mechanism (5) follows the cutting mechanism to make an ejection action, so as to achieve the balance between the cutting end and the cutting back end. The cutting pressure balancing mechanism (5) has an ejection linkage mechanism. When the cutting pressure balancing mechanism (5) ejects downward following the cutting mechanism and contacts the upper end face of the gear (4) to be processed, if it corresponds to the tooth groove (9) of the gear (4) to be processed, the ejection linkage mechanism extends into the tooth groove (9) and passes through the tooth groove (9) to the bottom outside of the gear (4) to be processed. If there is no tooth groove (9) corresponding to the gear (4) to be processed, the ejection linkage mechanism will contact the upper end face of the gear (4) to be processed and be pressed. The cutting pressure balancing mechanism (5) includes a drive cylinder (2), a connecting plate (61), a telescopic connecting rod, a balancing pressure sleeve (54), and an ejection linkage mechanism disposed in the balancing pressure sleeve (54). The drive cylinder (2) is fixedly installed on the mounting plate (7). The output end of the drive cylinder (2) is connected to the connecting plate (61). The telescopic connecting rod is set as at least two symmetrical rods. One side of the telescopic connecting rod is fixedly connected to the bottom of the connecting plate (61), and the other side of the telescopic connecting rod is fixedly connected to the top of the balance pressure sleeve (54). A receiving cavity (66) is formed inside the balance pressure sleeve (54) for installing the ejection linkage mechanism. It also includes a first connecting ring (52), one side of which is fixedly connected to the outer wall of the mounting plate (6). A first annular hole is provided in the middle of the first connecting ring (52), and the balance pressure sleeve (54) passes through the first annular hole and moves up and down along the first connecting ring (52). The top of the ejection linkage mechanism does not contact the connecting plate (61) and forms a stroke gap cavity. When the driving cylinder (2) drives the ejection, the connecting plate (61) drives downward, causing the balance pressure sleeve (54) to first contact the top end face of the gear (4) to be processed. When the connecting plate (61) continues to press down, the lower end face of the connecting plate (61) contacts the ejection linkage mechanism and applies pressure to the ejection linkage mechanism. When the driving cylinder (2) does not eject, the bottom of the balance pressure sleeve (54) does not contact the top end face of the gear (4) to be processed.

2. The high-precision gear processing device according to claim 1, characterized in that: The ejection linkage mechanism includes an ejection sleeve (53), a second connecting ring (51), an ejection telescopic piston (70), an ejection rod (67), and a deburring knife (55). One side of the second connecting ring (51) is fixedly connected to the outer wall of the mounting plate (6). A second annular hole is provided in the middle of the second connecting ring (51). The ejection sleeve (53) passes through the second annular hole and extends into the receiving cavity (66) inside the balancing pressure sleeve (54). The ejection telescopic piston (70) is movably installed at the bottom of the ejection sleeve (53). The top of the ejection rod (67) is fixedly connected to the bottom of the ejection telescopic piston (70). The deburring knife (55) is detachably connected to the ejection rod (67). When the connecting plate (61) is not in contact with the ejector sleeve (53), the bottom surface of the burr removal knife (55) is not in contact with the upper end surface of the gear (4) to be processed. The top of the ejector sleeve (53) is also provided with a limiting plate (63) with an outer diameter larger than that of the ejector sleeve (53). A first spring (58) is installed on the ejector sleeve (53) between the limiting plate (63) and the second connecting ring (51). The first spring (58) pushes the ejector sleeve (53) upward. The ejector sleeve (53) has a piston chamber. One end of the ejector telescopic piston (70) is sealed and extends into the piston chamber. A second spring (71) is installed in the piston chamber. The second spring (71) pushes the ejector telescopic piston (70) outward. The ejector sleeve (53) is provided with an air inlet and outlet hole.

3. The high-precision gear processing device according to claim 2, characterized in that: The burr removal knife (55) has blade surfaces on both sides, and the outer contour of the burr removal knife (55) corresponds to the outer contour of the tooth groove (9), so that the burr removal knife (55) can correspond to the tooth groove (9). When the burr removal knife (55) is inserted into the tooth groove (9), the blade surfaces on both sides of the burr removal knife (55) remove the burrs in the tooth groove (9). The bottom surface of the ejector rod (67) is provided with screw (68) locking holes. Each burr removal knife (55) is provided with a through hole corresponding to the screw (68) locking hole. The burr removal knife (55) and the ejector rod (67) are fixedly connected by screws (68).

4. The high-precision gear processing device according to claim 2, characterized in that: The balancing pressure sleeve (54) has a clearance groove (56) from bottom to top corresponding to the position of the burr removal knife (55). The burr removal knife (55) is located in the clearance groove (56) and extends through the clearance groove (56) to the outside of the balancing pressure sleeve (54).

5. The high-precision gear processing device according to claim 1, characterized in that: The balancing pressure sleeve (54) is also provided with a storage cavity (72). The receiving cavity (66) of the balancing pressure sleeve (54) is provided with multiple suction holes (57) for sucking up the removed burrs. The bottom of the balancing pressure sleeve (54) is provided with a discharge port for discharging the collected burrs. The discharge port is sealed by a sealing plate (69). The sealing plate (69) is fixed to the balancing pressure sleeve (54) with a screw (68). The side of the sealing plate (69) that contacts the gear (4) to be processed is provided with an elastic rubber contact layer. A negative pressure suction tube (59) is connected to the balancing pressure sleeve (54). The other side of the negative pressure suction tube (59) is connected to a negative pressure pump (60). The negative pressure pump (60) generates negative pressure suction at the suction hole (57). An isolation mesh cover is provided at the air outlet of the storage cavity.

6. The high-precision gear processing device according to claim 1, characterized in that: Each telescopic connecting rod includes a telescopic fixed rod (62) and a telescopic movable rod (65). One side of the telescopic fixed rod (62) is fixedly connected to the connecting plate (61). One end of the telescopic movable rod (65) is inserted into the telescopic fixed rod (62), and the other end extends out of the telescopic fixed rod (62) and is fixedly connected to the upper end face of the balancing pressure sleeve (54). A third spring is installed inside the telescopic fixed rod (62), and the third spring pushes the telescopic movable rod (65) outward.

7. The high-precision gear processing device according to claim 1, characterized in that: The cutting mechanism includes a fixed plate (14), a lead screw transmission mechanism is mounted on the fixed plate (14), a movable plate (11) is mounted on the lead screw transmission mechanism, a cutting head (8) is mounted on the movable plate (11), a cutting head drive motor (12) is mounted on the other side of the movable plate (11), and a longitudinal groove (13) is opened on the fixed plate (14) corresponding to the cutting head drive motor (12), and the cutting head drive motor (12) passes through the longitudinal groove (13).

8. The high-precision gear processing device according to claim 1, characterized in that: The clamping mechanism includes multiple jaws (15), which clamp the reserved clamping part (41) of the gear (4) to be processed.

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