Multi-degree-of-freedom linkage support adjusting mechanism for gear modification

Abstract

This invention discloses a multi-degree-of-freedom linkage support and adjustment mechanism for gear modification, including a worktable, a support mechanism, a top bracket, a drive cylinder, a positioning and clamping mechanism, and a modification surface adjustment mechanism. The support mechanism on the worktable supports the gear to be modified before clamping. The positioning and clamping mechanism is installed at the output end of the drive cylinder and faces the center hole of the gear. When the drive cylinder presses down, it drives the positioning and clamping mechanism to open outward, thereby internally supporting and fixing the center hole of the gear. The positioning and clamping mechanism includes a first hinge plate, a second hinge plate, a first hinge rod, a second hinge rod, a central hinge block, and a clamping block. The clamping block is universally mounted via a ball joint and connected to a drive rod. The modification surface adjustment mechanism drives the drive plate to rotate via a drive motor, driving the drive rods at different positions, allowing the gear to switch between different inclined modification surfaces while clamped. This mechanism is highly versatile, provides stable clamping, reduces repetitive positioning errors, and improves gear modification efficiency.

Description

Technical Field

[0001] This invention relates to the field of gear processing, and specifically to a multi-degree-of-freedom linkage support and adjustment mechanism for gear shaping. Background Technology

[0002] After gears are machined, they typically require reshaping of the end face, tooth profile edges, or local tooth surfaces based on requirements such as meshing accuracy, transmission noise, load-bearing capacity, and operating conditions. Existing gear reshaping equipment generally requires first positioning and fixing the gear using a fixture, and then using reshaping tools, grinding components, or a reshaping robot to process the surfaces to be reshaped. Because different gear specifications have variations in center hole diameter, gear thickness, outer diameter, and reshaping angle, traditional fixtures often require changing positioning sleeves, pressure plates, pads, or special tooling for different gear models, resulting in poor versatility, long equipment changeover times, and reduced continuous processing efficiency.

[0003] Meanwhile, existing gear shaping and positioning structures mostly use peripheral clamping or end-face clamping for fixation. While these structures can achieve basic clamping, their clamping positions easily occupy the gear's peripheral or end-face machining area, resulting in partial obstruction of the surfaces to be shaped and limiting the operating space of the shaping robot. When different circumferential directions, different tilt angles, or different end-face areas of the gear need to be shaped, it is usually necessary to loosen the clamp, readjust the gear's posture, and then re-position and clamp it. This process is not only cumbersome, but repeated clamping can easily introduce positioning errors, making it difficult to guarantee the positional consistency and machining accuracy between the various shaped surfaces of the gear.

[0004] Furthermore, while some existing adjustable gear clamps can achieve a certain degree of angle adjustment, their adjustment mechanisms are usually located on the outside of the gear or around the worktable. This requires coordination with external swing arms, tilting tables, turntables, or multiple sets of actuators, resulting in a complex overall structure, large space occupation, and independent adjustment and positioning / clamping actions. It is difficult to continuously switch gear profiles directly after positioning is complete. Especially when used in conjunction with a profile-modifying robot for automated processing, the complex external adjustment mechanism can easily interfere with the robot's movement path, hindering the formation of a compact, stable, and highly flexible gear profile-modifying support and adjustment structure.

[0005] Therefore, it is necessary to provide a multi-degree-of-freedom linkage support and adjustment mechanism for gear modification, which can automatically position and clamp the gear center hole by driving the downward action of the cylinder. After clamping, the gear can be adjusted by the internal modification surface adjustment mechanism without releasing the gear or relying on a complex external flipping structure. This improves the clamping versatility of different gear models, the efficiency of modification surface switching, and the overall machining stability. Summary of the Invention

[0006] To address the aforementioned problems, this invention provides a multi-degree-of-freedom linkage support and adjustment mechanism for gear modification, which effectively overcomes the shortcomings of existing technologies.

[0007] This invention is achieved through the following technical solution: a multi-degree-of-freedom linkage support and adjustment mechanism for gear modification, comprising: A workbench is provided with a support mechanism for supporting the gear to be modified, and a gear modification robot is installed on the outside of the workbench. A top bracket is used to mount the drive cylinder, and the top bracket is fixedly mounted to the top panel; A positioning and clamping mechanism is fixedly installed at the output end of the drive cylinder, and the positioning and clamping mechanism is directly facing the center hole of the gear to be modified. When the drive cylinder pushes downward, the center hole of the gear is positioned and fixed by the outwardly expanding positioning and clamping mechanism; A profile adjustment mechanism is installed on the top of the inner end of the positioning and clamping mechanism, and the different profiles of the gear are adjusted by the profile adjustment mechanism.

[0008] As a preferred technical solution, the positioning and clamping mechanism includes: A first hinge plate and a second hinge plate, the top of the first hinge plate is connected to the output end of the drive cylinder, and the second hinge plate is coaxially disposed at the far end of the first hinge plate; A first hinge rod, a central hinge block, and a second hinge rod, wherein one end of each of the first hinge rods is hinged to the first hinge plate, and the other end of each of the first hinge rods is hinged to the central hinge block; One end of each of the second hinge rods is hinged to the second hinge plate, and the other end of each of the second hinge rods is hinged to the central hinge block.

[0009] As a preferred technical solution, it also includes one or more clamping blocks, each of which is universally mounted in a spherical mounting hole opened on the central hinge block via a ball joint, and each of the spherical mounting holes has a through hole penetrating the central hinge block on its bottom surface.

[0010] As a preferred technical solution, a drive rod is fixedly installed on the side of the ball bearing facing the through hole. Each drive rod extends through the through hole toward the center of the first hinge plate and the second hinge plate. The profile adjustment mechanism is located at the top of each drive rod and adjusts the profile tilt of the gear by controlling the drive rod.

[0011] As a preferred technical solution, a return spring is fixedly connected between the clamping block and the central hinge block to reset the clamping block, the drive rod, and the ball shaft.

[0012] As a preferred technical solution, each of the clamping blocks has a relief cavity on the side facing the inner wall of the gear center hole. Each relief cavity is provided with one or more sets of support springs. A floating positioning block is also provided in the relief cavity. The floating positioning block is located at the outer end of the support spring. As the drive cylinder pushes downward, the floating positioning block gradually retracts into the relief cavity.

[0013] As a preferred technical solution, the shaping surface adjustment mechanism includes a drive motor. The top of the drive motor is fixedly installed on the lower end face of the first hinge plate. The output end of the drive motor is connected to the drive plate. After rotary cutting, the lower end face of the drive plate forms a rotary cutting drive surface. The distance between each position point of the rotary cutting drive surface on the circumference and the drive rod at the bottom is different. When the drive plate rotates, it drives the drive rods at different circumferential positions during the rotation process, so that the gear to be shaped can switch the shaping angle arbitrarily in the circumferential direction.

[0014] As a preferred technical solution, a support positioning piece is provided at the bottom of the second hinge plate, and the support positioning piece is in contact with the top surface of the worktable.

[0015] As a preferred technical solution, the floating positioning block and the clamping block are provided with a rubber anti-slip layer on the side facing the inner wall of the gear center hole.

[0016] As a preferred technical solution, the support mechanism includes an ejector cylinder fixedly installed on the bottom surface of the workbench. A support panel is installed at the output end of the ejector cylinder. A support leg is provided on each of the top two sides of the support panel. The support leg passes through a slot in the workbench and extends to the upper surface of the workbench.

[0017] The beneficial effects of this invention are as follows: This invention drives the positioning and clamping mechanism to move downwards via a driving cylinder, enabling the positioning and clamping mechanism to simultaneously expand outwards within the center hole of the gear, thereby completing the center positioning and internal clamping of the gear to be modified. This method eliminates the need for special fixtures for the outer diameter of the gear and frequent replacement of the positioning sleeve, making it adaptable to gears of different models and center hole sizes, highly versatile, and with high clamping efficiency.

[0018] The positioning and clamping mechanism of this invention adopts a linkage and support structure formed by a first hinge plate, a second hinge plate, a first hinge rod, a second hinge rod, and a central hinge block, so that multiple clamping positions can simultaneously abut against the inner wall of the gear's central hole. The tighter the drive cylinder presses down, the greater the clamping force of the positioning and clamping mechanism on the gear, thereby ensuring the gear remains stable during the shaping process and reducing shaking, offset, and repeated clamping errors.

[0019] The present invention provides a relief cavity, a support spring and a floating positioning block on the clamping block, so that the positioning and clamping mechanism can first support and position the gear center hole through the floating positioning block during the initial pressing and clamping stage. At this time, the drive disk has not yet directly acted on the drive rod, and the bottom of the gear can still be stably supported by the support mechanism, avoiding the drive disk from contacting the drive rod too early and causing the gear to tilt in the bottom support state, thus ensuring the stability of the initial positioning and clamping process of the gear.

[0020] After the gear completes its positioning within the center hole, the bottom support mechanism retracts downwards, creating clearance space at the bottom of the gear. Subsequently, the drive cylinder continues to push downwards, and the floating positioning block gradually retracts into the clearance cavity under the action of the support spring, causing the drive disc to gradually approach and eventually contact the drive rod. This creates a delayed contact relationship between the drive disc and the drive rod, ensuring that the gear only enters its tiltable adjustment state after the bottom support mechanism has cleared its clearance. This guarantees both stable initial support and clamping, and smooth adjustment of the subsequent profile angle.

[0021] This invention incorporates a shaping surface adjustment mechanism within the positioning and clamping mechanism. When the drive disc contacts the drive rod, the drive motor rotates the drive disc. The rotary cutting drive surface of the drive disc acts sequentially on the drive rod at different positions in the circumferential direction, thereby causing the gear to switch to different tilt postures. This allows the external shaping robot to process different circumferential shaping surfaces of the gear. This structure eliminates the need to release the gear for repositioning, enabling the switching of different shaping surfaces and improving continuous shaping efficiency and positional consistency between multiple shaping operations.

[0022] This invention integrates support, central hole internal support clamping, delayed retraction, internal drive adjustment, and multi-angle shaping surface switching into a single mechanism. The structure is compact and neat, with a high degree of freedom. It can reduce the space occupied by the external flipping adjustment mechanism and the interference between it and the shaping robot, making it suitable for automated continuous operation in gear shaping. Attached Figure Description

[0023] 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.

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a front view of the present invention. Figure 3 This is a cross-sectional schematic diagram of the present invention; Figure 4 For the present invention Figure 3 A magnified view of a section at point A in the middle; Figure 5 This is a partial structural schematic diagram from a top view of the present invention; Figure 6 This is a schematic diagram of the positioning and clamping mechanism of the present invention; Explanation of reference numerals in the attached figures: 7. Workbench; 4. Gear; 2. Top support; 1. Drive cylinder; 3. Positioning and clamping mechanism; 33. First hinge plate; 34. Second hinge plate; 32. First hinge rod; 111. Central hinge block; 31. Second hinge rod; 113. Clamping block; 114. Ball shaft; 116. Through hole; 115. Drive rod; 112. Return spring; 1131. Floating positioning block; 10. Drive motor; 9. Drive disc; 12. Support positioning plate; 8. Ejection cylinder; 6. Support panel; 5. Support foot. Detailed Implementation

[0025] 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.

[0026] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features for a similar purpose, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0027] like Figure 1-6 As shown, this embodiment provides a multi-degree-of-freedom linkage support and adjustment mechanism for gear modification. It is mainly used for center positioning, internal support clamping, and linkage adjustment of the modified surface of gear 4 during modification processing. The mechanism includes a worktable 7, which serves as the overall mounting base and supports the gear 4 to be modified and related support components. A support mechanism for the gear 4 is provided on the worktable 7. When the gear 4 is placed above the worktable 7, the support mechanism can lift the gear 4 from below, keeping the center hole of the gear 4 in a position corresponding to the positioning and clamping mechanism 3, facilitating the subsequent insertion of the positioning and clamping mechanism 3 into the center hole of the gear 4. A modification robot for gear modification can be installed outside the worktable 7. The modification robot is used to modify the surface of the gear 4 to be modified after the gear 4 has been positioned and adjusted to the corresponding modification angle.

[0028] A top support 2 is provided above the workbench 7. The top support 2 is used to install the drive cylinder 1, so that the drive cylinder 1 can be kept directly above the center hole of the gear 4. The output end of the drive cylinder 1 is vertically downward. The positioning and clamping mechanism 3 is fixedly installed below the output end of the drive cylinder 1 and is positioned opposite to the center hole of the gear 4 to be modified. During operation, the drive cylinder 1 pushes downward, driving the positioning and clamping mechanism 3 to move towards the center hole of the gear 4. When the positioning and clamping mechanism 3 enters the center hole of the gear 4, it gradually expands outward during the continued downward pressing, thereby pressing against the inner wall of the center hole of the gear 4 in an inward supporting manner, realizing the center positioning and clamping fixation of the gear 4.

[0029] The positioning and clamping mechanism 3 includes a first hinge plate 33, a second hinge plate 34, a first hinge rod 32, a second hinge rod 31, and a central hinge block 111. The first hinge plate 33 is located at the upper end of the positioning and clamping mechanism 3 and is connected to the output end of the drive cylinder 1, enabling the drive cylinder 1 to directly drive the first hinge plate 33 to move up and down. The second hinge plate 34 is coaxially located at the lower end of the first hinge plate 33, forming an installation space between the first hinge plate 33 and the second hinge plate 34 for arranging the hinge transmission structure. One end of the first hinge rod 32 is hinged to the first hinge plate 33, and the other end of the first hinge rod 32 is hinged to the central hinge block 111; one end of the second hinge rod 31 is hinged to the second hinge plate 34, and the other end of the second hinge rod 31 is hinged to the central hinge block 111. Thus, the first hinge rod 32, the second hinge rod 31, and the central hinge block 111 form an openable and retractable linkage support structure.

[0030] Multiple central hinge blocks 111 can be arranged circumferentially along the first hinge plate 33 and the second hinge plate 34, enabling the positioning and clamping mechanism 3 to form multi-point support within the central hole of the gear 4. When the drive cylinder 1 pushes downward, the first hinge plate 33 moves downward with the drive cylinder 1, and drives the central hinge blocks 111 to move outward through the first hinge rod 32 and the second hinge rod 31, causing each central hinge block 111 to gradually approach the inner wall of the central hole of the gear 4. Since multiple central hinge blocks 111 can expand outward synchronously, positioning and clamping can be performed simultaneously from different directions within the central hole of the gear 4, making the force on the gear 4 more uniform and avoiding gear 4 offset caused by unilateral force.

[0031] A clamping block 113 is provided on the central hinge block 111. The clamping block 113 is universally mounted in a spherical mounting hole on the central hinge block 111 via a ball shaft 114, allowing the clamping block 113 to swing at a certain angle relative to the central hinge block 111. After the ball shaft 114 engages with the spherical mounting hole, the clamping block 113 can both expand outward with the central hinge block 111 and press against the inner wall of the central hole of the gear 4, and can also swing at a small angle according to the force direction of the drive rod 115 during subsequent surface adjustment, thereby allowing the gear 4 to tilt accordingly while maintaining clamping. A through hole 116 is provided on the bottom surface of the spherical mounting hole, penetrating the central hinge block 111. The through hole 116 allows the drive rod 115 to pass through and form a movement space.

[0032] A drive rod 115 is fixedly mounted on the side of the ball shaft 114 facing the through hole 116. The drive rod 115 passes through the through hole 116 and extends towards the center of the first hinge plate 33 and the second hinge plate 34. As a force-bearing component during the surface adjustment, when the drive rod 115 is acted upon by the surface adjustment mechanism above, it can drive the ball shaft 114 to deflect within the spherical mounting hole, thereby causing the clamping block 113 to change angle. Since the clamping block 113 has formed an inner support contact with the inner wall of the center hole of the gear 4, the deflection of the clamping block 113 can cause the gear 4 to produce a corresponding tilting posture change, thereby adjusting the surface angle of the gear 4 relative to the surface adjustment robot.

[0033] A return spring 112 is provided between the clamping block 113 and the central hinge block 111. The return spring 112 is used to drive the clamping block 113, the ball shaft 114, and the drive rod 115 back to their initial positions after the drive rod 115 is not subjected to external driving force or the external driving force is released. By setting the return spring 112, the clamping block 113 can automatically return to its original position after completing one tilt adjustment, which is convenient for subsequent switching of different trimming surfaces. At the same time, it can also prevent the clamping block 113 from shaking freely in the absence of driving force, thereby improving the stability of the positioning and clamping mechanism 3.

[0034] The clamping block 113 has a relief cavity on the side facing the inner wall of the center hole of the gear 4. A support spring is installed in the relief cavity, and a floating positioning block 1131 is also installed within the relief cavity, located at the outer end of the support spring. The floating positioning block 1131 is used to contact the inner wall of the center hole of the gear 4 when the positioning and clamping mechanism 3 initially expands outward, ensuring that the gear 4 remains stably positioned while the bottom support mechanism is still in a supported state. At this time, the drive disk 9 has not yet directly contacted the drive rod 115. The gear 4 is mainly supported by the bottom support mechanism, and the floating positioning block 1131 provides pre-positioning and elastic contact with the inner wall of the center hole, preventing the gear 4 from tilting due to premature force on the drive rod 115 when supported at the bottom, thus ensuring the stability of the initial clamping process of the gear 4.

[0035] As the drive cylinder 1 continues to push downwards, the clamping force of the positioning and clamping mechanism 3 on the center hole of the gear 4 gradually increases. Under the reaction force of the inner wall of the center hole of the gear 4, the floating positioning block 1131 gradually compresses the support spring and gradually retracts into the retraction cavity of the clamping block 113. This retraction process provides a delayed contact stroke between the drive disc 9 and the drive rod 115, so that the drive disc 9 will not drive the drive rod 115 prematurely while the bottom of the gear 4 is still supported by the support mechanism. Instead, after the gear 4 has completed stable clamping and the support mechanism has retracted and repositioned, the drive disc 9 will contact the drive rod 115 through the continued downward pressure of the drive cylinder 1. Thus, the gear 4 can first complete stable support and center positioning, and then enter the adjustable state that can be tilted and shaped.

[0036] The shaping surface adjustment mechanism is located at the top of the inner end of the positioning and clamping mechanism 3, and includes a drive motor 10 and a drive disk 9. The drive motor 10 is fixedly mounted on the lower end face of the first hinge disk 33, enabling the drive motor 10 to move up and down synchronously with the first hinge disk 33 and the entire positioning and clamping mechanism 3. The output end of the drive motor 10 is connected to the drive disk 9 to drive the drive disk 9 to rotate. The drive disk 9 is located above each drive rod 115, and the lower end face of the drive disk 9 forms a rotary cutting drive surface. The distance between the rotary cutting drive surface and each drive rod 115 at the bottom is different at different positions in the circumferential direction. Therefore, when the drive disk 9 rotates to different angles, it can selectively apply downward pressure or bias pressure to the drive rods 115 at different circumferential positions.

[0037] After gear 4 completes its positioning within the center hole, the support mechanism retracts downwards, freeing the bottom of gear 4 from continuous support by the support foot 5, creating clearance space below gear 4 for tilt adjustment. Subsequently, the drive cylinder 1 continues to push downwards, the floating positioning block 1131 further retracts into the clearance cavity, and the drive disk 9 gradually approaches and eventually contacts the drive rod 115. At this point, the drive motor 10 drives the drive disk 9 to rotate. During rotation, the rotary cutting drive surface of the drive disk 9 acts sequentially on the drive rods 115 at different positions, causing the corresponding drive rods 115 to push the ball shaft 114 and the clamping block 113 to deflect, thus allowing gear 4 to switch to different tilt postures in the circumferential direction. The shaping robot can then perform shaping processing based on the currently exposed surface of gear 4, completing the continuous switching of multiple different shaping surfaces without needing to loosen gear 4 and re-clamp it.

[0038] The bottom of the second hinge plate 34 is provided with a support positioning piece 12, which is used to press against the top surface of the worktable 7 when the positioning clamping mechanism 3 is pressed down to the predetermined position. Through the contact between the support positioning piece 12 and the top surface of the worktable 7, the pressing position of the positioning clamping mechanism 3 can be assisted in limiting and supporting, so that the second hinge plate 34 remains stable during operation, reducing the axial sway of the positioning clamping mechanism 3 during the pressing, spreading and shaping process, and improving the positioning reliability of the overall mechanism.

[0039] The support mechanism includes an ejector cylinder 8, a support panel 6, and support feet 5. The ejector cylinder 8 is fixedly mounted on the bottom surface of the worktable 7, and its output end is connected upward to the support panel 6. Support feet 5 are respectively provided on both sides of the top of the support panel 6. The worktable 7 has slots for the support feet 5 to pass through, and the support feet 5 extend to the upper surface of the worktable 7 after passing through the slots. Before clamping, the ejector cylinder 8 ejects upward, causing the support panel 6 and support feet 5 to rise, so that the support feet 5 support the gear 4 from the bottom, ensuring that the gear 4 can be placed stably and aligned with the positioning and clamping mechanism 3. After the gear 4 completes the internal support positioning in the center hole, the ejector cylinder 8 causes the support panel 6 and support feet 5 to retract downward, so that the support feet 5 exit the bottom support position of the gear 4, thereby providing space for subsequent tilt adjustment and shaping of the gear 4.

[0040] In actual use, the gear 4 to be shaped is first placed on the worktable 7, and the ejector cylinder 8 drives the support panel 6 and support feet 5 to rise, so that the support feet 5 provide stable support for the bottom of the gear 4. Then, the drive cylinder 1 pushes downward, driving the positioning and clamping mechanism 3 into the center hole of the gear 4. The first hinge plate 33, the second hinge plate 34, the first hinge rod 32, the second hinge rod 31, and the center hinge block 111 work together to make multiple clamping blocks 113 and floating positioning blocks 1131 simultaneously open outward and abut against the inner wall of the center hole of the gear 4. After the gear 4 completes center positioning and internal clamping, the ejector cylinder 8 retracts, causing the support feet 5 to move down and away from the bottom of the gear 4. Then, the drive cylinder 1 continues to push downward, causing the floating positioning block 1131 to gradually retract into the clamping block 113, and the drive plate 9 contacts the drive rod 115. When the drive motor 10 drives the drive disk 9 to rotate, the drive disk 9 drives different drive rods 115 through the rotary cutting drive surface, so that the gear 4 switches between different inclined shaping surfaces while maintaining the clamping state. The shaping robot can then process the exposed shaping surface corresponding to the gear 4. After processing is completed, the drive disk 9 stops driving, the return spring 112 drives the clamping block 113, the ball shaft 114 and the drive rod 115 to return to their original positions, the drive cylinder 1 moves upward and the positioning and clamping mechanism 3 retracts, and the ejection cylinder 8 can eject the support gear 4 again for easy removal or entry into the next round of processing.

[0041] 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 multi-degree-of-freedom linkage support and adjustment mechanism for gear modification, characterized in that, include: A workbench (7) is provided with a support mechanism for supporting the gear (4) to be modified. A gear modification robot is installed on the outside of the workbench (7). A top bracket (2) is used to install a drive cylinder (1), and the top bracket (2) is fixedly installed with the top panel; The positioning and clamping mechanism (3) is fixedly installed at the output end of the drive cylinder (1) and the positioning and clamping mechanism (3) is directly facing the center hole of the gear (4) to be modified. When the drive cylinder (1) pushes downward, the center hole of the gear (4) is positioned and fixed by the outwardly expanding positioning clamping mechanism (3); The profile adjustment mechanism is installed on the top of the inner end of the positioning clamping mechanism (3) and adjusts the different profiles of the gear (4) through the profile adjustment mechanism.

2. The multi-degree-of-freedom linkage support and adjustment mechanism for gear modification according to claim 1, characterized in that: The positioning and clamping mechanism (3) includes: A first hinge plate (33) and a second hinge plate (34), the top of the first hinge plate (33) is connected to the output end of the drive cylinder (1), and the second hinge plate (34) is coaxially arranged at the far end of the first hinge plate (33); The first hinge rod (32), the central hinge block (111), and the second hinge rod (31) are all hinged at one end to the first hinge plate (33) and at the other end to the central hinge block (111). One end of the second hinge rod (31) is hinged to the second hinge plate (34), and the other end of the second hinge rod (31) is hinged to the central hinge block (111).

3. The multi-degree-of-freedom linkage support and adjustment mechanism for gear modification according to claim 2, characterized in that: It also includes one or more clamping blocks (113), each of which is universally mounted in a spherical mounting hole opened on the central hinge block (111) via a ball shaft (114), and each of the spherical mounting holes has a through hole (116) penetrating the central hinge block (111) on its bottom surface.

4. The multi-degree-of-freedom linkage support and adjustment mechanism for gear modification according to claim 3, characterized in that: A drive rod (115) is fixedly installed on the side of the ball shaft (114) facing the through hole (116). Each drive rod (115) extends through the through hole (116) toward the center of the first hinge plate (33) and the second hinge plate (34). The shaping surface adjustment mechanism is located on the top of each drive rod (115) and adjusts the shaping inclination of the gear (4) by controlling the drive rod (115).

5. The multi-degree-of-freedom linkage support and adjustment mechanism for gear modification according to claim 4, characterized in that: A return spring (112) is fixedly connected between the clamping block (113) and the central hinge block (111) for resetting the clamping block (113) and the drive rod (115) and ball shaft (114).

6. The multi-degree-of-freedom linkage support and adjustment mechanism for gear modification according to claim 5, characterized in that: Each of the clamping blocks (113) has a relief cavity on the side facing the inner wall of the center hole of the gear (4). Each relief cavity has one or more sets of support springs. A floating positioning block (1131) is also provided in the relief cavity. The floating positioning block (1131) is located at the outer end of the support spring. As the drive cylinder (1) pushes downward continuously, the floating positioning block (1131) gradually retracts into the relief cavity.

7. The multi-degree-of-freedom linkage support and adjustment mechanism for gear modification according to claim 6, characterized in that: The shaping surface adjustment mechanism includes a drive motor (10). The top of the drive motor (10) is fixedly installed on the lower end face of the first hinge plate (33). The output end of the drive motor (10) is connected to the drive disk (9). The lower end face of the drive disk (9) forms a rotary cutting drive surface after rotary cutting. The distance between each position point of the rotary cutting drive surface on the circumference and the drive rod (115) at the bottom is different. When the drive disk (9) rotates, it drives the drive rod (115) at different circumferential positions during the rotation process, so that the gear (4) to be shaped can switch the shaping angle arbitrarily in the circumferential direction.

8. The multi-degree-of-freedom linkage support and adjustment mechanism for gear modification according to claim 7, characterized in that: The bottom of the second hinge plate (34) is provided with a support positioning piece (12), which is pressed against the top surface of the worktable (7).

9. The multi-degree-of-freedom linkage support and adjustment mechanism for gear modification according to claim 8, characterized in that: The floating positioning block (1131) and the clamping block (113) are provided with a rubber anti-slip layer on the side facing the inner wall of the center hole of the gear (4).

10. The multi-degree-of-freedom linkage support and adjustment mechanism for gear modification according to claim 1, characterized in that: The support mechanism includes an ejector cylinder (8) fixedly installed on the bottom surface of the workbench (7). A support panel (6) is installed at the output end of the ejector cylinder (8). A support foot (5) is provided on each side of the top of the support panel (6). The support foot (5) passes through the slots opened on the workbench (7) and extends to the upper surface of the workbench (7).

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