Shaft part fixing mechanism capable of accurately adjusting angle
Through the combined design of support components, distance adjustment components and clamping components, combined with screw drive and groove ball drive, the accuracy and stability problems of existing shaft part fixing mechanisms are solved, high-precision, fast changeover and stable angle adjustment are achieved to meet high-precision processing requirements.
Patent Information
- Application Number
- CN202511124161.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-12
- Publication Date
- 2025-10-10
AI Technical Summary
The existing shaft part fixing mechanism for precise angle adjustment has problems such as insufficient wedge block adjustment accuracy and repeatability, high cost and complexity of hydraulic cylinders, slow response speed, poor environmental adaptability, and weak versatility, making it difficult to meet the needs of high precision and rapid changeover.
The combined design of support components, distance adjustment components and clamping components is adopted. The screw drive is coordinated with the sleeve block, combined with the roller groove and ball drive to achieve micron-level spacing adjustment and high-precision angle adjustment. The evenly distributed clamping of the four clamping blocks ensures constant clamping force and angle stability.
It achieves micron-level precision angle adjustment, has strong adaptability, improved rapid changeover capability, compact structure, small axial space, modular design for easy maintenance, improved clamping stability and angle adjustment accuracy, and meets high-precision processing needs.
Smart Images
Figure CN120755814A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of shaft component processing, and in particular relates to a shaft component fixing mechanism capable of precisely adjusting an angle. Background Art
[0002] A precise angle-adjustable shaft fixture is a mechanical device that clamps, positions, and adjusts the angle of shaft components through a quantifiable adjustment mechanism (such as a screw-sleeve block, servo motor, or precision slide). This achieves high-precision angular fixation of shaft components in space (accuracy can reach ±0.01° to ±0.1°), ensuring angular stability during processing, inspection, or assembly, while also offering rapid changeover and high versatility. Existing precise angle-adjustable shaft fixtures that use wedge blocks or hydraulic cylinders for spacing adjustment suffer from several significant issues. Wedge blocks lack accuracy and repeatability, mechanical backlash leads to large angle adjustment errors, and manual adjustment relies on experience. They also suffer from poor structural stability, are prone to deformation, and exhibit weak vibration resistance. They occupy a large axial space and have high maintenance costs. Hydraulic cylinder adjustment, on the other hand, is costly and complex, requiring a large initial system investment and complex maintenance. They also have slow response times, accuracy affected by oil temperature, poor environmental adaptability, high cleanliness requirements, and potential leakage risks. Furthermore, there were issues with their interoperability. The wedge and hydraulic cylinder had fixed adjustment ranges, limited diameter compatibility, limited quick changeover capabilities, insufficient load capacity and rigidity, the wedge was prone to deformation, and the hydraulic cylinder's clamping force was unstable. These issues collectively limited the performance and efficiency of the shaft component fixing mechanism in precisely adjusting angles, necessitating an urgent need for a better solution. Summary of the Invention
[0003] The technical problem to be solved by the present invention is: the present invention provides a shaft component fixing mechanism with precise angle adjustment, which solves the problems raised in the above background technology.
[0004] The technical solution of the present invention is: In one aspect, the present invention provides a shaft component fixing mechanism for precise angle adjustment, the fixing mechanism comprising: a support assembly, a distance adjustment assembly, and two clamping assemblies; A distance adjustment component is set on the support platform in the support component, and two clamping components are set at both ends of the support platform. One of the clamping components is connected to the distance adjustment component as a movable clamping component, which can move closer to or away from the other clamping component under the drive of the distance adjustment component. The other clamping component is a fixed clamping component.
[0005] Preferably, the specific structure of the distance adjustment component is: The inside of the support table is provided with a sliding groove, a second driving gear is movably installed in the sliding groove, a screw rod is sleeved with screw threads in the second driving gear, and the screw rod penetrates through the inside of the support table at both ends, a first driven gear is fixedly installed at one end of the screw rod, a motor is fixedly installed on the right side of the support table, a second driving gear is fixedly installed at the output end of the motor, the teeth of the second driving gear and the first driven gear are engaged, a first fixed support is fixedly installed at the top of the second driving gear, and a first rotating shaft is movably installed in the first fixed support.
[0006] Preferably, the specific structure of the fixed clamping assembly is: A second fixed support is fixedly installed at the top of the support table, a second rotating shaft is movably installed in the second fixed support, a fixed clamping assembly is fixedly installed at one end of the second rotating shaft and the first rotating shaft, a second driven gear is fixedly installed at the other end of the second rotating shaft, a first driving gear is movably installed in the second fixed support, the teeth of the first driving gear and the second rotating handle are engaged, a second rotating handle is fixedly installed on the left side of the first driving gear, a ball is movably installed in the second fixed support, and a rolling groove is formed in the first driving gear.
[0007] Preferably, the first driving gear is driven to rotate by the second rotating handle, the first driving gear is driven to rotate by the second driven gear through the engagement of the teeth therebetween, and the second driven gear and the second rotating shaft are rotated by one sixteenth when the ball in the second fixed support enters the rolling groove in the first driving gear and the rotation of the first driving gear has a clear pause. A rotation angle of one sixteenth is represented by one rotation of the first driving gear, and a rotation angle of one eighth is represented by two rotations, so as to complete the precision adjustment of the rotation angle of the shaft part.
[0008] Preferably, the clamping assembly is fixedly installed at one end of the second rotating shaft and the first rotating shaft; the clamping assembly further comprises a clamping cover fixedly installed at one end of the second rotating shaft and the first rotating shaft, a lead screw is movably installed in the clamping cover, a rotating disc is fixedly installed at one end of the lead screw, a first rotating handle is fixedly installed at one end of the rotating disc, a clamping block is fixedly installed at the other end of the lead screw, and a rubber pad is movably installed in the clamping block.
[0009] Preferably, the shaft part is placed between the inside of the clamping cover and the four rubber pads, and then the first rotating handle is rotated to drive the rotating disk to rotate, and the rotating disk drives the screw rod to rotate inside the clamping cover, so that the screw rod drives the rubber pad to slowly descend inside the clamping cover until the four sleeve blocks contact the outer surface of the shaft part, thereby completing the limiting fixation of the shaft part. The sleeve block consists of a clamping block 9 and a rubber pad 10.
[0010] Preferably, the screw rods and clamping blocks are arranged in groups of two, for a total of four groups, and are movably arranged inside the clamping cover.
[0011] Preferably, the method of adjusting the angle of the shaft part using the fixing mechanism is specifically as follows: The distance between the two clamping assemblies is adjusted according to the distance between the shaft parts, the motor is turned on, the second driving gear is driven by the motor to rotate, the first driven gear is driven to rotate by the second driving gear, the screw is driven by the first driven gear to rotate inside the second driving gear, so that the second driving gear moves inside the slide groove, the first fixed bracket and the first rotating shaft are driven to move by the second driving gear, and the clamping assembly is driven to move by the first rotating shaft until it moves to the diameter distance of the shaft parts, and the motor stops rotating, thereby adjusting the distance between the two clamping assemblies according to the diameter distance of the shaft parts; After the clamping assembly has completed the positioning and fixing of the shaft part, the first driving gear is driven to rotate by the second rotating handle, and the first driving gear and the second driven gear are engaged with each other through the teeth of the first driving gear, and the second driven gear is driven to rotate by the first driving gear. When the ball inside the second fixed bracket enters the internal rolling groove of the first driving gear, and the first driving gear has an obvious pause during the rotation process, the second driven gear and the second rotating shaft rotate by one sixteenth; wherein the first driving gear rotates one circle, indicating that the second driven gear rotates by one sixteenth of the rotation angle, and rotates two circles, indicating that it rotates by one eighth of the rotation angle, thereby completing the precise adjustment of the rotation angle of the shaft part.
[0012] Compared with the prior art, the present invention has the following beneficial effects: Compared with the traditional mechanism, the present invention cooperates with the screw drive and the sleeve to achieve micron-level spacing adjustment, accurately meeting the needs of high-precision angle adjustment; and the self-locking feature of the screw can ensure constant clamping force and avoid angle deviation. It has strong adaptability and can adapt to Φ5mm to Φ100mm shaft parts through screw stroke and sleeve position adjustment. There is no need to change tools. The screw can be rotated to quickly change the shape, thereby improving efficiency; at the same time, the structure is compact, the axial space is small, and the modular design facilitates maintenance.
[0013] Compared with the traditional mechanism, the present invention realizes finer angle adjustment through the cooperation between the rolling groove and the ball, meeting the needs of high-precision processing or assembly, and the cooperation between the rolling groove and the ball ensures that the step angle of each rotation is consistent, reducing error accumulation and improving the repeatability and stability of adjustment; the ball rolls in the rolling groove, with small friction resistance and high transmission efficiency, and quickly responds to angle adjustment needs. Compared with the worm gear transmission method, its structure is more compact and suitable for occasions with limited space; in addition, rolling friction wear is small and the service life is long. The supporting effect of the ball enhances the rigidity of the system, and the adjustment process is more stable. Precise step control can be achieved manually, thereby improving production efficiency.
[0014] Compared with the traditional mechanism, the present invention facilitates the four rubber pads to limit and fix the clamping blocks to the shaft parts through the cooperation between the screw rod and the rotating disk. The design of four clamping blocks greatly improves the clamping stability and angle adjustment accuracy; the evenly distributed clamping force field formed by the four clamping blocks can effectively avoid the eccentric stress generated by traditional two-point or three-point clamping, so that the shaft parts are more evenly stressed; at the same time, when there are slight dimensional deviations in the shaft parts, the four clamping blocks can be adjusted independently to achieve dynamic compensation, ensuring that the clamping surface is fully fitted with the surface of the shaft parts. In addition, the four clamping blocks can independently perform micron-level displacement adjustment, and cooperate with the high-precision drive mechanism to achieve one-degree adjustment of the positive and negative zero points of the shaft part angle, and eliminate the angular offset caused by processing errors through a closed-loop feedback system. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the front three-dimensional appearance structure of the present invention; Figure 2 This is a schematic diagram of the side three-dimensional appearance structure of the present invention; Figure 3 For the present invention Figure 2 A in the middle is an enlarged structural diagram; Figure 4 Schematic diagram of the cross-sectional structure of the screw of the present invention; Figure 5 This is a schematic diagram of the structure of the clamping assembly of the present invention; Figure 6 Schematic diagram of the cross-sectional structure of the clamping assembly of the present invention; Figure 7 Schematic diagram of the cross-sectional structure of the steel ball of the present invention; Figure 8 For the present invention Figure 7 Middle B is a schematic diagram of the enlarged structure; Figure 9 It is a schematic diagram of the partial cross-sectional structure of the clamping assembly of the present invention.
[0016] Explanation of the accompanying drawings: 1. Support platform; 2. First fixed bracket; 3. Second fixed bracket; 4. Column; 5. Base; 6. Clamping cover; 7. First rotating shaft; 8. Screw; 9. Clamping block; 10. Rubber pad; 11. Rotating disk; 12. First drive gear; 13. Ball; 14. First rotating handle; 15. Fixed groove; 16. Fixed block; 17. Tool box; 18. First driven gear; 19. Motor; 20. Screw; 21. Second drive gear; 22. Rolling groove; 23. Support seat; 24. Slide groove; 25. Second rotating shaft; 26. Second driven gear; 27. Second rotating handle. DETAILED DESCRIPTION
[0017] The present application is described in further detail below with reference to the accompanying drawings of the embodiments.
[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0019] like Figures 1 to 9 As shown, an embodiment of the present invention provides a shaft part fixing mechanism for precise angle adjustment, including a support platform 1, a slide groove 24 is opened inside the support platform 1, a second driving gear 21 is movably installed inside the slide groove 24, the internal thread of the second driving gear 21 is sleeved with a screw rod 20, and both ends of the screw rod 20 pass through the interior of the support platform 1, one end of the screw 20 is fixedly installed with a first driven gear 18, a motor 19 is fixedly installed on the right side of the support platform 1, and a second driving gear 21 is fixedly installed on the output end of the motor 19, the second driving gear 21 is meshed with the first driven gear 18, a first fixed bracket 2 is fixedly installed on the top of the second driving gear 21, and a first rotating shaft 7 is movably installed inside the first fixed bracket 2.
[0020] The distance between the two clamping assemblies is adjusted according to the distance between the shaft parts, and the motor 19 is turned on. The second driving gear 21 is driven to rotate by the motor 19, and the first driven gear 18 is driven to rotate by the second driving gear 21. The screw 20 is driven by the first driven gear 18 to rotate inside the second driving gear 21, so that the second driving gear 21 moves slowly inside the slide groove 24, and the first fixed bracket 2 and the first rotating shaft 7 are driven to move by the second driving gear 21, and the clamping assembly is driven to move by the first rotating shaft 7 until it moves to the diameter distance of the shaft parts. The motor 19 stops rotating, and the distance between the two clamping assemblies is adjusted according to the diameter distance of the shaft parts.
[0021] Adjust the distance between the two clamping components according to the distance between the shaft parts. When operating, first turn on the motor 19, and its rotation drives the second driving gear 21 to rotate; the first driven gear 18 is further driven to rotate by the second driving gear 21, and the first driven gear 18 drives the component screw 20 to rotate inside the second driving gear 21. This linkage causes the component second driving gear 21 to move slowly inside the component slide 24; then, the second driving gear 21 drives the first fixed bracket 2 and the first rotating shaft 7 to move, and the first rotating shaft 7 drives the clamping component to move until it reaches the position aligned with the shaft. The distance between the parts and the diameter is matched, and the motor 19 stops rotating at this time to complete the adjustment. Compared with the traditional mechanism, the screw drive of this mechanism cooperates with the sleeve (9 and 10) to achieve micron-level spacing adjustment, accurately meeting the needs of high-precision angle adjustment. The self-locking feature of the screw can ensure constant clamping force and avoid angular deviation. It has strong adaptability and can adapt to shaft parts from Φ5mm to Φ100mm by adjusting the screw stroke and the position of the sleeve. There is no need to change tools. The screw can be rotated to quickly change the type, which improves efficiency. At the same time, the structure is compact, the axial space is small, and the modular design is easy to maintain.
[0022] Among them, a second fixed bracket 3 is fixedly installed on the top of the support platform 1, and a second rotating shaft 25 is movably installed inside the second fixed bracket 3. A clamping assembly is fixedly installed on one end of the second rotating shaft 25 and the first rotating shaft 7. A second driven gear 26 is fixedly installed on the other end of the second rotating shaft 25. A first driving gear 12 is movably installed inside the second fixed bracket 3, and the first driving gear 12 is meshed with the second rotating handle 27. A second rotating handle 27 is fixedly installed on the left side of the first driving gear 12. A ball 13 is movably installed inside the second fixed bracket 3, and a rolling groove 22 is provided inside the first driving gear 12.
[0023] After the clamping assembly has completed the positioning and fixing of the shaft part, the second rotating handle 27 is rotated by holding it, and the first driving gear 12 is driven to rotate by the second rotating handle 27. The first driving gear 12 and the second driven gear 26 are engaged with each other through the teeth, and the second driven gear 26 is driven to rotate by the first driving gear 12. When the ball 13 inside the second fixed bracket 3 enters the internal rolling groove 22 of the first driving gear 12, and the rotation process of the first driving gear 12 has an obvious pause, the second driven gear 26 and the second rotating shaft 25 rotate by one sixteenth; wherein the first driving gear 12 rotates one circle, indicating that the second driven gear 26 rotates by one sixteenth of the rotation angle, and rotates two circles, indicating that it rotates by one eighth of the rotation angle, thereby completing the precision adjustment of the rotation angle of the shaft part.
[0024] After the parts are fixed by clamping the shaft group (7 and 25), the second rotating handle 27 is rotated to drive the first driving gear 12 to rotate, and then the first driving gear 12 is meshed with the second driven gear 26 through the teeth of the first driving gear 12, so that the second driven gear 26 rotates accordingly; when the ball 13 inside the second fixed bracket 3 enters the rolling groove 22 inside the first driving gear 12, the rotation of the first driving gear 12 will be obviously paused, and the second driven gear 26 and the second rotating shaft 25 will rotate one sixteenth of a circle; that is, for every rotation of the first driving gear 12, the second driven gear 26 rotates one sixteenth of an angle, and for two rotations, it rotates one eighth of an angle, thereby achieving zero alignment of the axis. Precise adjustment of the rotation angle of the component; compared with the traditional mechanism, this mechanism achieves finer angle adjustment through the cooperation between the rolling groove 22 and the ball 13, meeting the needs of high-precision processing or assembly, and the cooperation between the rolling groove 22 and the ball 13 ensures that the step angle of each rotation is consistent, reducing error accumulation and improving the repeatability and stability of the adjustment; the ball 13 rolls in the rolling groove 22, with low friction resistance and high transmission efficiency, and quickly responds to angle adjustment needs. Compared with the worm gear transmission method, its structure is more compact and suitable for occasions with limited space; in addition, the rolling friction wear is small and the service life is long. The ball support effect enhances the rigidity of the system, the adjustment process is more stable, and precise step control can be achieved manually to improve production efficiency.
[0025] Among them, the clamping assembly is fixedly installed on the second rotating shaft 25 and one end of the first rotating shaft 7; the clamping assembly includes a clamping cover 6 fixedly installed on the second rotating shaft 25 and one end of the first rotating shaft 7, and a screw rod 8 is movably installed inside the clamping cover 6, a rotating disk 11 is fixedly installed on one end of the screw rod 8, a first rotating handle 14 is fixedly installed on one end of the rotating disk 11, a clamping block 9 is fixedly installed on the other end of the screw rod 8, and a rubber pad 10 is movably installed inside the clamping block 9.
[0026] Place the shaft part between the inside of the clamping cover 6 and the four rubber pads 10, then rotate the first rotating handle 14, and drive the rotating disk 11 to rotate through the first rotating handle 14, and drive the screw rod 8 to rotate inside the clamping cover 6 through the rotating disk 11, so that the screw rod 8 drives the rubber pad 10 to slowly descend inside the clamping cover 6, when the sleeve block contacts the shaft part, until the four sleeve blocks contact the outer surface of the shaft part, thereby completing the limit fixation of the shaft part.
[0027] First, accurately place the shaft part into the internal space of the clamping cover 6 so that it is between the four rubber pads 10; then rotate the first rotating handle 14, and use the transmission mechanism to drive the rotating disk 11 to rotate, and then drive the screw rod 8 to rotate in the clamping cover 6, so that the screw rod 8 drives the rubber pad 10 to slowly descend until the rubber pad 10 and the clamping block 9 contact the shaft part to be fixed, and finally release the first rotating handle 14 to complete the limit fixation; Compared with the traditional mechanism, this mechanism facilitates the four rubber pads 10 and the clamping block 9 to limit and fix the shaft part through the cooperation between the screw rod 8 and the rotating disk 11, and adopts four clamping blocks The design of 9 greatly improves the clamping stability and angle adjustment accuracy; the evenly distributed clamping force field formed by the four clamping blocks 9 can effectively avoid the eccentric stress generated by traditional two-point or three-point clamping, making the shaft parts more balanced in force; at the same time, when there are slight dimensional deviations in the shaft parts, the four clamping blocks 9 can be adjusted independently to achieve dynamic compensation, ensuring that the clamping surface and the surface of the shaft parts are fully fitted. In addition, the four clamping blocks 9 can independently perform micron-level displacement adjustment, and with the high-precision drive mechanism, can achieve one-degree adjustment of the positive and negative zero points of the shaft parts angle, and eliminate the angle offset caused by processing errors through the closed-loop feedback system. Among them, columns 4 are fixedly installed around the bottom of the support platform 1, and a base 5 is fixedly installed at the bottom of the columns 4.
[0028] Since the bottom of the support platform 1 is fixedly installed with columns 4 and the bottom of the columns 4 is fixedly installed with a base 5, the cooperation between the columns 4 and the base 5 facilitates providing stable support for the support platform 1 and reduces the shaking of the support platform 1 during use.
[0029] A fixing groove 15 is provided inside the support platform 1 , a fixing block 16 is movably installed inside the fixing groove 15 , and a tool box 17 is fixedly installed on the back of the fixing block 16 .
[0030] By holding the tool box 17 and slowly placing the fixing block 16 into the fixing groove 15, the fixing block 16 is limited and fixed by the fixing groove 15. By adding the tool box 17, it is convenient to take and place maintenance tools inside the tool box 17.
[0031] A support base 23 is fixedly installed on the left side of the support platform 1 , and the support base 23 is in a U-shape.
[0032] The inner diameter of the fixing groove 15 is equal to the outer diameter of the fixing block 16 , and the interior of the fixing groove 15 has a smooth surface design.
[0033] Since the inner diameter of the fixing groove 15 is equal to the outer diameter of the fixing block 16 and the interior of the fixing groove 15 has a smooth design, it is convenient for the staff to hold the tool box 17 and slowly place the fixing block 16 into the interior of the fixing groove 15, thereby ensuring the installation efficiency of the tool box 17.
[0034] The screw rods 8 and the clamping blocks 9 are arranged in groups of two, for a total of four groups, and are movably arranged inside the clamping cover 6 .
[0035] Since the screw rods 8 and the clamping blocks 9 are arranged in groups of two, there are four groups in total, which are movably arranged inside the clamping cover 6. Through the cooperation between the screw rods 8 and the clamping blocks 9, it is convenient to limit and fix the shaft parts inside the clamping cover 6, thereby ensuring the stability of the shaft parts during processing.
[0036] The working principle and use process of the present invention: The distance between the two clamping assemblies is adjusted according to the distance between the shaft parts, and the motor 19 is turned on. The second drive gear 21 is driven to rotate by the motor 19, and the first driven gear 18 is driven to rotate by the second drive gear 21. The screw 20 is driven by the first driven gear 18 to rotate inside the second drive gear 21, so that the second drive gear 21 moves slowly inside the slide groove 24. The first fixed bracket 2 and the first rotating shaft 7 are driven to move by the second drive gear 21, and the clamping assembly is driven to move by the first rotating shaft 7 until it moves to the diameter distance of the shaft parts. The motor 19 stops rotating, thereby adjusting the distance between the two clamping assemblies according to the diameter distance of the shaft parts.
[0037] After the clamping assembly has completed the positioning and fixing of the shaft part, the second rotating handle 27 is rotated by holding it, and the first driving gear 12 is driven to rotate by the second rotating handle 27. The first driving gear 12 and the second driven gear 26 are engaged with each other through the teeth, and the second driven gear 26 is driven to rotate by the first driving gear 12. When the ball 13 inside the second fixed bracket 3 enters the internal rolling groove 22 of the first driving gear 12, and the first driving gear 12 has an obvious pause during the rotation process, the second driven gear 26 and the second rotating shaft 25 rotate by one-sixteen; wherein the first driving gear 12 rotates one circle, indicating that the second driven gear 26 rotates by a rotation angle of one-sixteen, and rotates two circles, indicating that it rotates by a rotation angle of one-eighth, thereby completing the precision adjustment of the rotation angle of the shaft part.
[0038] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.
[0039] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.
Claims
1. A shaft component fixing mechanism for precise angle adjustment, characterized in that: The fixing mechanism comprises: a supporting component, a distance adjustment component and two clamping components; A distance adjustment component is set on the support platform in the support component, and two clamping components are set at both ends of the support platform. One of the clamping components is connected to the distance adjustment component as a movable clamping component, which can move closer to or away from the other clamping component under the drive of the distance adjustment component. The other clamping component is a fixed clamping component.
2. The shaft component fixing mechanism for precise angle adjustment according to claim 1, characterized in that: The specific structure of the distance adjustment component is: A slide groove is provided inside the support platform, and a second driving gear is movably installed inside the slide groove. A screw is sleeved on the internal thread of the second driving gear, and both ends of the screw pass through the interior of the support platform. A first driven gear is fixedly installed on one end of the screw. A motor is fixedly installed on the right side of the support platform, and a second driving gear is fixedly installed on the output end of the motor. The second driving gear and the first driven gear are meshed with each other. A first fixed bracket is fixedly installed on the top of the second driving gear, and a first rotating shaft is movably installed inside the first fixed bracket.
3. The shaft component fixing mechanism for precise angle adjustment according to claim 2, characterized in that: The specific structure of the fixed clamping assembly is: A second fixed bracket is fixedly installed on the top of the support platform, a second rotating shaft is movably installed inside the second fixed bracket, a fixed clamping assembly is fixedly installed on one end of the second rotating shaft and the first rotating shaft, a second driven gear is fixedly installed on the other end of the second rotating shaft, a first driving gear is movably installed inside the second fixed bracket, and the first driving gear is meshed with the second rotating handle, a second rotating handle is fixedly installed on the left side of the first driving gear, a ball is movably installed inside the second fixed bracket, and a rolling groove is provided inside the first driving gear.
4. The shaft component fixing mechanism for precise angle adjustment according to claim 3, characterized in that: The first driving gear is driven to rotate by the second rotating handle, and the first driving gear and the second driven gear are engaged with each other, so that the first driving gear drives the second driven gear to rotate. When the ball inside the second fixed bracket enters the internal rolling groove of the first driving gear, and there is an obvious pause in the rotation process of the first driving gear, the second driven gear and the second rotating shaft are rotated by one sixteenth; wherein, one rotation of the first driving gear indicates that the second driven gear rotates by one sixteenth of the rotation angle, and two rotations indicate that the second driven gear rotates by one eighth of the rotation angle, thereby completing the precision adjustment of the rotation angle of the shaft part.
5. The shaft component fixing mechanism with precise angle adjustment according to claim 3, characterized in that: The clamping assembly is fixedly mounted on the second rotating shaft and one end of the first rotating shaft; the clamping assembly also includes a clamping cover fixedly mounted on the second rotating shaft and one end of the first rotating shaft, a screw rod is movably mounted inside the clamping cover, a rotating disk is fixedly mounted on one end of the screw rod, a first rotating handle is fixedly mounted on one end of the rotating disk, a clamping block is fixedly mounted on the other end of the screw rod, and a rubber pad is movably mounted inside the clamping block.
6. The shaft component fixing mechanism for precise angle adjustment according to claim 5, characterized in that: Place the shaft part between the inside of the clamping cover and the four rubber pads, then rotate the first rotating handle to drive the rotating disk to rotate, and drive the screw rod to rotate inside the clamping cover through the rotating disk, so that the screw rod drives the rubber pad to slowly descend inside the clamping cover until the four sleeve blocks contact the outer surface of the shaft part, thereby completing the limit fixation of the shaft part. The sleeve block consists of a clamping block and a rubber pad.
7. The shaft component fixing mechanism for precise angle adjustment according to claim 1, characterized in that: The screw rods and the clamping blocks are arranged in groups of two, with a total of four groups, and are movably arranged inside the clamping cover.
8. The shaft component fixing mechanism for precise angle adjustment according to claim 6, characterized in that: The method for adjusting the angle of the shaft part using the fixing mechanism is specifically as follows: The distance between the two clamping assemblies is adjusted according to the distance between the shaft parts, the motor is turned on, the second driving gear is driven by the motor to rotate, the first driven gear is driven to rotate by the second driving gear, the screw is driven by the first driven gear to rotate inside the second driving gear, so that the second driving gear moves inside the slide groove, the first fixed bracket and the first rotating shaft are driven to move by the second driving gear, and the clamping assembly is driven to move by the first rotating shaft until it moves to the diameter distance of the shaft parts, and the motor stops rotating, thereby adjusting the distance between the two clamping assemblies according to the diameter distance of the shaft parts; After the clamping assembly has completed the positioning and fixing of the shaft part, the first driving gear is driven to rotate by the second rotating handle, and the first driving gear and the second driven gear are engaged with each other through the teeth of the first driving gear, and the second driven gear is driven to rotate by the first driving gear. When the ball inside the second fixed bracket enters the internal rolling groove of the first driving gear, and the first driving gear has an obvious pause during the rotation process, the second driven gear and the second rotating shaft rotate by one sixteenth; wherein the first driving gear rotates one circle, indicating that the second driven gear rotates by one sixteenth of the rotation angle, and rotates two circles, indicating that it rotates by one eighth of the rotation angle, thereby completing the precise adjustment of the rotation angle of the shaft part.