A precision scraping device for tooth rings with an automatic correction mechanism

Abstract

This invention relates to the field of gear machining technology, specifically to a precision scraping device for gear rings and teeth with an automatic correction mechanism. The device includes a worktable, with hydraulic telescopic rods mounted at both ends of one upper side of the worktable. A mounting plate is mounted on the output ends of the two hydraulic telescopic rods. A scraping rod for machining the gear rings and teeth of a workpiece is bolted to the center of the end face of the mounting plate away from the hydraulic telescopic rods. A material discharge groove for discharging material is provided on one upper side of the worktable. A support is fixedly connected to the center of one upper side of the worktable, and a turntable is rotatably connected to the center of the support. Multiple material support modules for placing workpieces are evenly spaced on one end face of the turntable. Compared to existing technologies, this application solves the problems of low efficiency and reliance on manual loading, unloading, and correction in the gear ring and tooth machining process.

Description

Technical Field

[0001] This invention relates to the field of gear processing technology, and in particular to a precision scraping device for gear ring teeth with an automatic correction mechanism. Background Technology

[0002] Gear rings are important components commonly used in mechanical transmission. Their tooth profiles need to maintain high precision to ensure stability and durability during meshing and transmission. Gear ring teeth are typically machined using a scraping process, which can improve surface quality while maintaining tooth profile precision. This process is a common and reliable method in gear ring machining. Currently used scraping equipment is mostly a relatively simple scraping machine, which generally only includes a worktable, a scraping bar, and support components for fixing the blanks. In this type of equipment, the gear ring blanks to be processed usually need to be manually moved to the worktable one by one. After the operator accurately places them in the processing position, the scraping bar is used to scrape the teeth of the blanks. After processing, the operator needs to remove the processed blanks one by one and place new blanks to continue processing. Existing scraping equipment generally adopts this manual loading and unloading method, relying on operators to clamp, transfer, and pick up the blanks, thereby realizing batch scraping processing of gear ring teeth.

[0003] However, there are still many shortcomings in the existing manual loading and unloading scraping devices: First, the processing process has not been automated, and it is impossible to achieve the integration of automatic feeding, processing and unloading, resulting in low overall efficiency; Second, manual loading and unloading and position correction not only increase labor costs, but also easily cause the blank to shift during the scraping process due to operational errors, thereby affecting the tooth accuracy and product qualification rate; Third, the processed blank needs to be manually handled and discharged, which not only reduces the continuity of processing, but also increases potential safety hazards.

[0004] Furthermore, we disclose a precision scraping device for tooth rings and teeth with an automatic correction mechanism to meet the actual needs of low efficiency and reliance on manual loading, unloading, and correction in the existing tooth ring and tooth processing technology. Summary of the Invention

[0005] In view of this, the purpose of this invention is to provide a precision scraping device for tooth rings and teeth with an automatic correction mechanism, so as to solve the problems of low efficiency and reliance on manual loading, unloading and correction in the existing tooth ring and tooth processing process.

[0006] To achieve the above objectives, the present invention provides a precision scraping device for gear rings and teeth with an automatic correction mechanism, comprising a worktable, wherein hydraulic telescopic rods are mounted at both ends on the upper side of the worktable, and mounting plates are mounted on the output ends of the two hydraulic telescopic rods. A scraping rod for machining gear rings and teeth on a blank is bolted to the middle of the end face of the mounting plate away from the hydraulic telescopic rods. A discharge groove for discharging material is provided on the upper side of the worktable, and a support is fixedly connected to the middle of the upper end face of the worktable. A turntable is rotatably connected to the middle of the support. Multiple material-supporting modules for placing blanks are evenly spaced on one end face. A feeding assembly is provided on the upper side of the worktable. The feeding assembly is used to drive the turntable to rotate intermittently and transfer the blanks on the material-supporting modules to the moving path of the scraper rod. A support rod is fixedly connected to the upper side of the worktable away from the hydraulic telescopic rod. A feeding cylinder for storing blanks to be processed is fixedly connected to the upper end of the support rod. A feeding module is provided at the lower end of the feeding cylinder. The feeding module intermittently feeds material to place the blanks to be processed inside it onto the material-supporting modules.

[0007] Preferably, the material shelf module includes multiple rotating blocks that are rotatably connected to one end face of a turntable at uniform intervals. A gear rod is fixedly connected to one end face of each of the multiple rotating blocks. A material shelf is fixedly connected to one end of the gear rod. The end of the material shelf away from the gear rod is semi-circular and has a placement groove for placing blanks. Limiting strips are fixedly connected to both ends of the inner wall of the placement groove. A counterweight is fixedly connected to the lower end of the material shelf.

[0008] Preferably, the feeding assembly includes a bracket fixedly connected to one side of the upper end of the workbench, a fixed groove block fixedly connected to the upper end of the bracket, a slider slidably connected inside the fixed groove block, a movable groove block fixedly connected to one side of the slider, the movable groove block slidably connected to the upper end of the bracket, a push block slidably connected inside the movable groove block, and the end of the push block away from the movable groove block fixedly connected to the mounting plate.

[0009] Preferably, the feeding assembly further includes a drive disk rotatably connected inside the turntable, a bracket rotatably connected to the outer side of the drive disk, a plurality of actuating posts are evenly spaced and fixedly connected to the outer side of the turntable on the side away from the rotating block, a connecting rod is rotatably connected to one end of the bracket, and the end of the connecting rod away from the bracket is rotatably connected to the slider, and the rotatable connection point between the bracket and the drive disk is not at the same position as the rotatable connection point between the bracket and the connecting rod.

[0010] Preferably, a limiting plate is fixedly connected to one end of the insert, and a vertical plate is fixedly connected to the upper end of the workbench on one side of the support. A limiting post is fixedly connected to the upper end of the vertical plate, and a limiting groove is formed on the side of the limiting plate away from the insert, and the limiting groove is slidably connected to the limiting post.

[0011] Preferably, an automatic material turning and correction mechanism is provided on the upper end of the workbench away from the hydraulic telescopic rod. The automatic material turning and correction mechanism includes a fixed rod fixedly connected to the workbench. An arc-shaped rack is fixedly connected to the side of the fixed rod near the turntable. When the turntable drives the gear rod to rotate to the position of the arc-shaped rack, the gear rod and the arc-shaped rack will mesh.

[0012] Preferably, the feeding module includes a tension spring fixedly connected to one side of the lower end of the feeding cylinder, a connecting seat fixedly connected to one end face of the tension spring, a stop block fixedly connected to the lower end of the connecting seat, the middle part of the stop block being slidably connected to the feeding cylinder, and one end of the stop block being inserted into the feeding cylinder between two blanks to be processed.

[0013] Preferably, a transfer plate is fixedly connected to one side of the lower end of the stop block, and an arc-shaped abutment rod is fixedly connected to the lower end of the transfer plate. The end of the arc-shaped abutment rod near the transfer plate is provided with a ramp.

[0014] Preferably, a cylindrical rod is fixedly connected to the upper end face of the material rack. When the cylindrical rod moves to the position of the arc-shaped contact rod, it will contact the arc-shaped contact rod. An arc-shaped groove is provided at the end of the slope, and the outer diameter of the arc-shaped groove corresponds to the outer diameter of the cylindrical rod.

[0015] Preferably, the upper end of the discharge cylinder is provided with an inlet cylinder.

[0016] The beneficial effects of this invention are:

[0017] Cyclic synchronization and dead-point prevention drive stabilize and improve production capacity: Through the eccentric insert linkage rod-slider chain on the edge of the drive disc, mechanical synchronization of "turntable intermittent indexing - scraping linear feed" is achieved. The limit plate-limit groove-limit post constrain the trajectory of the insert, so that the insert, linkage and limit plate are not collinear when in the rest position, completely eliminating the risk of dead point and jamming when restarting. Compared with the cycle drift caused by the difficulty of phase alignment in traditional manual cooperation or independent mechanisms, this solution ensures that the indexing angle and feed stroke of each cycle are strictly in phase, the starting torque is sustainable and the impact is small, which significantly improves the cycle stability and effective operating rate of the equipment.

[0018] Reliable single-piece feeding and anti-stacking, eliminating jamming and misfeeding: The feeding module uses a lateral retraction stop triggered by a "cylindrical rod - ramp - arc groove" to form a short-term "one-piece-only" window; the tension spring quickly resets to rebuild the separation between the next piece and the previous piece, preventing double pieces from stacking or falling together. Combined with the limit stop and semi-circular support groove in the shelf, reliable positioning and anti-sway control are achieved on the first acceptance, avoiding the faults of easy merging, edge jamming, and groove jamming that are common in traditional gravity feeding, reducing manual intervention and downtime for clearing obstacles, and ensuring consistent feeding and continuous subsequent scraping.

[0019] Controllable output and self-reset ensure processing quality and process continuity: The arc-shaped rack and gear rod roll relative to the turntable, applying forced rotation to the shelf in the discharge corner area, guiding the workpiece into the discharge groove at a predetermined angle. After disengagement, the shelf automatically returns to the receiving reference posture with the help of the gravity reset torque of the counterweight. The previous cycle of "stable discharge" and the next cycle of "accurate reception" are seamlessly connected. Compared with the traditional method of relying on manual flipping or free fall, this solution couples the workpiece posture with the cycle time, reducing interference and damage. Combined with the stability and micro-compensation of the scraping feed, it further improves the tooth surface consistency and finished product quality. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in this 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 for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a first-view three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a partial three-dimensional structural schematic diagram of the present invention;

[0023] Figure 3 This is a schematic diagram of the second-view three-dimensional structure of the present invention;

[0024] Figure 4 This is a top-section schematic diagram of a partial three-dimensional structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the slider installation of the present invention;

[0026] Figure 6 This is a schematic diagram of the installation of the drive disk of the present invention;

[0027] Figure 7 This is a three-dimensional schematic diagram of the material shelf and its connecting structure of the present invention;

[0028] Figure 8 This is a schematic diagram of the inside of the feeding cylinder of the present invention;

[0029] Figure 9 This is a three-dimensional schematic diagram of the arc-shaped contact rod and its connecting structure of the present invention.

[0030] The diagram is marked as follows:

[0031] 1. Workbench; 2. Hydraulic telescopic rod; 3. Mounting plate; 4. Discharge chute; 5. Support rod; 6. Feeding cylinder; 7. Feeding cylinder; 8. Turntable; 9. Support; 10. Push block; 11. Movable slot block; 12. Scraper rod; 13. Fixed slot block; 14. Connecting rod; 15. Sliding block; 16. Bracket; 17. Rotating block; 18. Material rack; 19. Fixed rod; 20. Arc-shaped rack; 21. Vertical plate; 22. Limiting plate; 23. Limiting post; 24. Insert bracket; 25. Actuating post; 26. Gear rod; 27. Cylindrical rod; 28. Counterweight; 29. ​​Limiting stop bar; 30. Tension spring; 31. Stop block; 32. Connecting seat; 33. Transfer plate; 34. Arc-shaped contact rod; 35. Arc-shaped groove; 36. Slope; 37. Limiting groove; 38. Drive plate. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.

[0033] It should be noted that, unless otherwise defined, the technical or scientific terms used in this invention should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0034] like Figures 1 to 9As shown, a precision scraping device for tooth rings and teeth with an automatic correction mechanism includes a worktable 1. Hydraulic telescopic rods 2 are installed at both ends of one side of the upper end of the worktable 1. Mounting plates 3 are installed at the output ends of the two hydraulic telescopic rods 2. A scraping rod 12 for machining the tooth rings and teeth of a workpiece is bolted to the center of the end face of the mounting plate 3 away from the hydraulic telescopic rods 2. A discharge trough 4 for discharging material is provided on one side of the upper end of the worktable 1. A support 9 is fixedly connected to the center of one side of the upper end face of the worktable 1. A turntable 8 is rotatably connected to the center of the support 9. Multiple workpieces are evenly spaced on one side of the turntable 8. The workbench 1 has a feeding component on one side of its upper end. The feeding component drives the turntable 8 to rotate intermittently to transfer the blanks on the workbench 1 to the moving path of the scraper 12. A support rod 5 is fixedly connected to the upper end of the workbench 1 away from the hydraulic telescopic rod 2. A feeding cylinder 6 for storing blanks to be processed is fixedly connected to the upper end of the support rod 5. A feeding module is provided at the lower end of the feeding cylinder 6. The feeding module intermittently feeds the blanks to be processed inside it to place them onto the workbench 1. An infeed cylinder 7 is provided at the upper end of the feeding cylinder 6. A vibration mechanism is installed on the infeed cylinder 7 to assist in feeding.

[0035] This invention provides a precision scraping device for tooth rings with an automatic correction mechanism, which constructs an integrated processing chain around "automatic feeding - online correction - precision scraping - automatic discharge": the vibration mechanism of the feed cylinder 7 and the discharge module at the lower end of the discharge cylinder 6 realize single-piece, rhythmic, and orderly feeding and prevent double-piece stacking; the blank is supported by the material support module on the turntable 8, and the cylindrical rod 27 of the material support frame 18 and the arc-shaped contact rod 34 form a linkage trigger to complete stable release and positioning; the turntable 8 is connected to the drive plate 38 - insert frame 24 - actuating column 2 Intermittent indexing is achieved through the action of five mechanisms, and the reciprocating cutting of the scraper rod 12 is synchronized with the indexing cycle through the linkage 14-slider 15-push block 10 and the mounting plate 3. The hydraulic telescopic rod 2 provides feed and micro-compensation in the machining direction to ensure stable scraping contact. The gear rod 26 of the material support module meshes with the fixed arc rack 20 to achieve online "return / posture correction", ensuring that the workpiece has a consistent posture before entering the scraping path and reducing the risk of wobble, interference and jamming. After processing, the workpiece is automatically unloaded into the discharge groove 4 along with the indexing. The overall solution significantly improves the degree of automation and production efficiency by addressing the problems of manual loading and unloading, unstable cycle and insufficient consistency in the traditional scraper rod 12 process.

[0036] In this embodiment, the turntable 8 can be equipped with 8-16 material-holding modules. The indexing angle and scraping stroke cycle are determined by the structure of the drive disk 38 and the geometric relationship of the bracket 24. The scraping feed, cutting speed and stroke length can be adjusted by the stroke of the hydraulic telescopic rod 2, the reciprocating amplitude of the mounting plate 3 and the drive speed. With the above configuration, this equipment can complete the entire process of stable release of a single piece, posture correction, precision scraping and automatic material discharge in one cycle, realize continuous and highly consistent processing of ring gear parts, significantly reduce manual loading and unloading intervention and improve production cycle and quality stability.

[0037] Furthermore, such as Figure 4 and Figure 7 As shown, the material support module includes multiple rotating blocks 17 that are rotatably connected to one side of the turntable 8 at uniform intervals. A gear rod 26 is fixedly connected to one side of each of the multiple rotating blocks 17. A material support frame 18 is fixedly connected to one end of the gear rod 26. The end of the material support frame 18 away from the gear rod 26 is semi-circular and has a placement groove for placing blanks. Limiting strips 29 are fixedly connected to both ends of the inner wall of the placement groove. A counterweight block 28 is fixedly connected to the lower end of the material support frame 18.

[0038] The material support module is preferably installed on evenly distributed mounting positions on one side end face of the turntable 8. Each mounting position rotatably connects the rotating block 17 to the turntable 8 via a shaft pin or hollow bearing seat. Its rotation axis is basically perpendicular to the side end face of the turntable 8, allowing the material support frame 18 to swing around this axis. The rotating block 17 and the gear rod 26 are coaxially integrated or keyed. The gear rod 26 has straight teeth arranged on its outer circumference to mesh with the subsequent arc-shaped rack 20. The tooth surface is quenched or nitrided to improve wear resistance. The tooth clearance is selected according to conventional machining accuracy to ensure smooth meshing and no jamming. The material support frame 18 is fixed to the extended end of the gear rod 26, preferably by bolt connection. The pins provide a limit for easy replacement and maintenance. The end of the shelf 18 furthest from the gear rod 26 forms a semi-circular support section with a placement groove matching the outer diameter of the blank. The bottom and sides of the groove are rounded or fitted with wear-resistant buffer pads to prevent scratches. Adjustable limit bars 29 are installed at both ends of the inner wall of the placement groove to reliably limit the radial and axial positions of the annular blank, retaining only necessary assembly clearance to ensure stable placement of individual pieces. To facilitate chip and oil discharge, through or blind chip removal holes can be opened at the bottom of the placement groove. A counterweight 28 is fixedly connected to the lower end of the shelf 18. The center of gravity of the counterweight 28 and the shelf 18 are used to set the support. The self-resetting tendency of the material rack 18 relative to the rotating block 17 allows it to return to its reference posture for receiving blanks when not subjected to external force. When driven by the meshing of the arc-shaped rack 20 or guided by external forces, it swings at a predetermined angle to complete posture correction and material discharge. The mass and installation position of the counterweight 28 can be finely adjusted via a screw hole array or sliding groove to adapt to different blank masses and cycle time requirements, ensuring reliable reset while overcoming friction between the rotating pairs without excessive impact. To ensure long-term stable operation, an oil-impregnated bushing or needle roller bearing is installed between the rotating block 17 and the turntable 8, along with an anti-loosening nut and end face retaining ring. A thin spring is added if necessary. A shim absorbs axial clearance; a stop pin and anti-loosening pin can be installed at the connection between the shelf 18 and the gear rod 26. A protective cover is added to the end of the gear rod 26 to prevent foreign objects from entering the tooth surface. During assembly, the rotating block 17 is positioned and the swing damping is corrected first, then the gear rod 26 and the shelf 18 are installed. Then the spacing of the limit stop strips 29 is adjusted according to the blank size and locked. Finally, the material bearing, follow-up correction and reset of the shelf 18 are checked through trial operation to ensure that the module is consistent with the drive and limit rhythm of the whole machine in the indexing, correction and discharge stages, so as to achieve stable bearing, reliable positioning, predictable posture correction and smooth material feeding of the ring blank.

[0039] Furthermore, such as Figures 1 to 6As shown, the feeding assembly includes a bracket 16 fixedly connected to one side of the upper end of the workbench 1. A fixed slot block 13 is fixedly connected to the upper end of the bracket 16. A slider 15 is slidably connected inside the fixed slot block 13. A movable slot block 11 is fixedly connected to one side of the slider 15. The movable slot block 11 is slidably connected to the upper end of the bracket 16. A push block 10 is slidably connected inside the movable slot block 11. The end of the push block 10 away from the movable slot block 11 is fixedly connected to the mounting plate 3. The feeding assembly also includes a drive disk 38 rotatably connected inside the turntable 8. A bracket 24 is rotatably connected to the outer side of the drive disk 38. The end of the turntable 8 away from the rotating block 17 is fixedly connected to the drive disk 38. Multiple actuating posts 25 are fixedly connected at even intervals on the outer side of the side end face. One end of the insert 24 is rotatably connected to a connecting rod 14. The end of the connecting rod 14 away from the insert 24 is rotatably connected to a slider 15. The rotatable connection point between the insert 24 and the drive disk 38 is not at the same position as the rotatable connection point between the insert 24 and the connecting rod 14. One end of the insert 24 is fixedly connected to a limiting plate 22. The upper end of the worktable 1 is fixedly connected to a vertical plate 21 on one side of the support 9. The upper end of the vertical plate 21 is fixedly connected to a limiting post 23. A limiting groove 37 is opened on the side of the limiting plate 22 away from the insert 24. The limiting groove 37 is slidably connected to the limiting post 23.

[0040] The feeding assembly fixes the bracket 16 to one side of the upper end of the worktable 1 as the load-bearing and guiding base of the entire mechanism. A fixed slot block 13 is arranged at its upper end to form the first linear guide pair. A sliding block 15 is internally fitted, and the side of the sliding block 15 is fixed to a movable slot block 11 by bolts and positioning pins. The upper surface of the movable slot block 11 and the upper end of the bracket 16 form the second linear guide pair. A longitudinally sliding push block 10 is internally fitted, and the front end of the push block 10 is rigidly connected to the mounting plate 3 by bolts to transmit reciprocating thrust. A drive disk 38 is coaxially arranged inside the turntable 8. A bracket 24 is pivotally mounted on the outer edge of the drive disk 38 via needle rollers or deep groove bearings. The outer working end of the bracket 24 intermittently meshes with the actuating columns 25 evenly distributed around the outer periphery of the turntable 8 to achieve indexing. The other end of the bracket 24 is connected to the connecting rod 1 by a pin. 4. The distal end of the connecting rod 14 is then connected to the slider 15 via a pin. The rotation connection point of the insert 24 relative to the drive disk 38 is not the same as the connection point of the insert 24-connecting rod 14, forming an eccentric crank-rocker-slider 15 mechanism. When the push block 10 moves, one side of the insert 24 generates a periodic insertion / displacement oscillation against the actuating column 25 to output intermittent torque on the turntable 8. The other side converts the non-sinusoidal displacement into the linear reciprocating motion of the slider 15 via the connecting rod 14, thereby achieving the effect of "the push block 10 reciprocating linearly" driving "the turntable 8 indexing". To ensure that the contact angle and rhythm between the insert 24 and the actuating column 25 are controlled, a limiting plate 22 is fixedly connected to the tail end of the insert 24. A limiting groove 37 matching the motion trajectory is opened on the plate 21, and the limiting groove 37 is on the vertical plate 21. The limiting post 23 at the end slides in contact with the limiting groove 37, whose arc or compound curve trajectory is used to constrain the spatial posture of the insert 24. This achieves "guided approach" when approaching the actuating post 25, "rapid clearance" when indexing is completed, and "avoidance and anti-interference" when not in operation, effectively suppressing jamming and impact. The fixed groove block 13 and the movable groove block 11 respectively undertake the guiding and anti-lateral load functions of the slider 15 and the push block 10. Their sliding pairs can use linear bearings or oil-impregnated wear-resistant bushings and be equipped with dustproof seals to ensure long stroke, low friction, and low maintenance. The push block 10 is provided with an adjustable elongated hole or eccentric sleeve at the connection between it and the mounting plate 3 for fine-tuning the scraping stroke and phase. The connecting rod 14 preferably has an adjustable joint for setting the feeding stroke amplitude and matching the indexing phase. The working end of the insert 24 can be covered with a wear-resistant block or roller end to reduce the impact of meshing with the actuating column 25 and extend its service life. The actuating column 25 is fixed in the equally spaced holes on the outer side of the turntable 8 with threads or interference fit and anti-loosening measures are applied to ensure the consistency of the indexing angle. Each rotating pair adopts a pin + bushing or bearing structure and a limiting retaining ring to control the axial clearance. Key fasteners are supplemented with anti-loosening glue. During assembly and debugging, first correct the coaxiality of the drive plate 38 and the turntable 8, then install the insert 24 and the limiting plate 22 and make the limiting groove 37 and the limiting column 23 slide smoothly. Then install the connecting rod 14 and the slider 15, adjust the length of the connecting rod 14 and the connection position of the push block 10 so that the cutting stroke of the push block 10 is within the "machining-return" cycle window before and after the turntable 8 completes the indexing.Finally, by idling at low speed, check whether the insertion / displacement of the insert 24 and the actuating column 25 is smooth, whether the slider 15 and the push block 10 are free from interference and jamming, and confirm that all guide rails are well lubricated. This achieves stable intermittent drive of the feeding assembly to the turntable 8 and synchronous linear feed output to the mounting plate 3 / scraper 12, achieving the timing coupling effect of "intermittent feeding - synchronous scraping" with the whole machine.

[0041] To ensure that no dead point occurs during restarting in the "pause phase," i.e., the gap stage where the insert 24 disengages from the actuating post 25 and the turntable 8 remains stationary, the structure uses the limiting plate 22—limiting groove 37 and limiting post 23 to constrain the spatial posture of the insert 24. This ensures that the eccentric pivot O of the insert 24 and the drive disk 38, the connecting point J of the insert 24 and the connecting rod 14, and the movement direction of the slider 15, or the guide normal of the limiting plate 22, remain non-collinear at the pause position. Specifically, ∠(OJ and the line of action of the insert 24) deviates from 0° / 180°, and the connection point of the connecting rod 14 and the slider 15 also maintains a lateral misalignment relative to the linear movement direction of the slider 15. This is achieved through the coordinated setting of the length / hole position of the connecting rod 14 and the curve of the limiting groove 37. Thus, when restarting, the effective starting torque applied by the drive disk 38 to the insert 24 is sufficient. Not zero, where For eccentricity, The angle between the eccentric lever arm and the line of action of the connecting rod 14 ensures that the insert 24 rotates preferentially rather than jams. The curved segment of the limiting groove 37 also defines a continuous posture of "guided approach - meshing indexing - rapid relocation - pause and avoidance". This ensures that the working end of the insert 24 is controlled to fit when it approaches the actuating column 25, and quickly relocates and enters the resting area after indexing. At the same time, it ensures that the insert 24, connecting rod 14, and limiting plate 22 are not on the same straight line in the resting area, thus eliminating dead point conditions from a mechanical perspective. During assembly and debugging, by setting the eccentricity e, the effective length and hole position of the connecting rod 14, and the phase and curvature distribution of the limiting groove 37, the indexing phase and the scraping reciprocating phase are accurately coupled. The "non-collinear triangular relationship" is verified at the resting position. If fine adjustment is required, it can be corrected by adjusting the end hole of the insert 24, the fine adjustment joint of the connecting rod 14, or the phase of the groove of the limiting plate 22, ensuring that each cycle has a reliable starting torque, no jamming, and no impact.

[0042] Preferably, the ratio of the connecting rod (14) to the eccentricity e satisfies: ,in The effective length of the line of action from the hinge center of the connecting rod (14) to the slider (15) is such that the motion directions of the insert (24) and the connecting rod (14)-slider (15) are not collinear at the rest position, with the minimum transmission angle. , Preferably ≥40°, more preferably ≥45°.

[0043] Furthermore, such as Figure 2and Figure 4 As shown, an automatic material turning and correction mechanism is provided on the upper end of the workbench 1 away from the hydraulic telescopic rod 2. The automatic material turning and correction mechanism includes a fixed rod 19 fixedly connected to the workbench 1. An arc-shaped rack 20 is fixedly connected to the side of the fixed rod 19 near the turntable 8. When the turntable 8 drives the gear rod 26 to rotate to the position of the arc-shaped rack 20, the gear rod 26 and the arc-shaped rack 20 will mesh.

[0044] The automatic material turning and correction mechanism is set on the workbench 1, on the side opposite to the hydraulic telescopic rod 2. It consists of a fixed rod 19 and an arc-shaped rack 20 fixedly connected to it. The tooth profile parameters of the arc-shaped rack 20 match the gear rod 26 on the material support module, and an inlet / outlet chamfer is set at the meshing end. When the turntable 8 moves continuously or intermittently to the rack area according to a predetermined rhythm, the gear rod 26 actively meshes with the rack. As the turntable 8 continues to drive the material support module to move circumferentially, relative rolling occurs between the rack and the gear rod 26. The gear rod 26 is forced to rotate around its own axis, thereby driving the rotating block 17 / material support frame 18 coaxial with it to swing synchronously. The effective arc segment of the rack is arranged in the corner area corresponding to the discharge groove 4. The material support frame 18 is rotated to a predetermined tilt angle within this meshing arc segment, so that the finished workpiece is smoothly discharged and falls into the discharge groove 4, realizing automatic unloading. When the material support module leaves the rack and is no longer meshed, it is no longer subject to external forced drive. Under the gravity reset torque generated by the counterweight 28, the shelf 18 automatically returns to the receiving reference posture, ready to receive the next blank. To ensure reliable operation, the arc rack 20 is calibrated in position and height with the center of the turntable 8 as the reference, so that its pitch line and the pitch circle of the gear rod 26 are on the same plane and maintain a stable center distance. The length of the meshing section is set according to the required "exit angle". The inlet / outlet section ensures smooth meshing without impact or jamming. The fixed rod 19 and the rack can be finely adjusted radially / phase by using an elongated hole to adapt to different workpiece sizes and discharge angles. The tooth surface can be moderately hardened or coated with a solid lubricating layer, combined with a simple protective cover to suppress wear and foreign object intrusion. With the above configuration, the automatic discharge of the processed workpiece and the self-recovery of the shelf 18 posture can be stably achieved in a single cycle of "meshing-exiting-disengaging-gravity reset", which avoids manual intervention and ensures the consistency and stable cycle of subsequent continuous receiving and processing.

[0045] Furthermore, such as Figures 1 to 2 , Figures 8 to 9As shown, the feeding module includes a tension spring 30 fixedly connected to one side of the lower end of the feeding cylinder 6. A connecting seat 32 is fixedly connected to one end face of the tension spring 30. A stop block 31 is fixedly connected to the lower end of the connecting seat 32. The middle part of the stop block 31 is slidably connected to the feeding cylinder 6, and one end of the stop block 31 is inserted into the feeding cylinder 6 between two blanks to be processed. A transfer plate 33 is fixedly connected to one side of the lower end of the stop block 31. An arc-shaped abutment rod 34 is fixedly connected to the lower end of the transfer plate 33. A ramp 36 is provided at the end of the arc-shaped abutment rod 34 near the transfer plate 33. A cylindrical rod 27 is fixedly connected to the upper end face of the shelf 18. When the cylindrical rod 27 moves to the position of the arc-shaped abutment rod 34, it will contact the arc-shaped abutment rod 34. An arc-shaped groove 35 is provided at the end of the ramp 36. The outer diameter of the arc-shaped groove 35 corresponds to the outer diameter of the cylindrical rod 27.

[0046] The feeding module is located on the lower side wall of the feeding cylinder 6, and adopts a single-piece release mechanism of "lateral sliding stop 31 + elastic reset + linkage trigger with the shelf 18": a tension spring 30 is fixed on one side of the lower end of the feeding cylinder 6, and its free end is fixed to the connecting seat 32. The lower end of the connecting seat 32 is integrally fixed to the stop 31. The middle part of the stop 31 slides parallel to the cylinder wall through the guide slide on the side wall of the feeding cylinder 6. The inner end of the stop 31 extends into the inside of the feeding cylinder 6 and is inserted between two adjacent blanks to be processed to form a mechanical separation. The outer end is integrally connected to the transfer plate 33 through the connecting seat 32. The lower end of the transfer plate 33 is fixed with an arc-shaped abutment rod 34. The abutment rod has a smooth guide contour on the side facing the shelf 18 and forms a slope 3 at the end near the transfer plate 33. 6. An arc-shaped groove 35, matching the outer diameter of the cylindrical rod 27 on the shelf 18, is provided at the end of the ramp 36 for temporary self-positioning and pressure holding. During operation, the turntable 8 drives the shelf 18 to the feeding position. The cylindrical rod 27 first contacts the ramp 36 of the arc-shaped abutment rod 34 and moves upward along the ramp 36, pushing the arc-shaped abutment rod 34—transfer plate 33—stop block 31 to slide outward against the tension of the tension spring 30. The stop block 31 then retracts from between the two blanks. After the displacement reaches the predetermined stroke, the cylindrical rod 27 enters the arc-shaped groove 35 to form a temporary lock, ensuring that the stop block 31 remains in the "fully retracted" state within the time window. The bottom blank of the feeding cylinder 6 falls into the placement slot of the shelf 18 under its own weight. As the turntable 8 continues... Continuing operation, the cylindrical rod 27 disengages from the arc-shaped groove 35, and the tension spring 30 quickly resets the stop block 31 and reinserts it between the remaining two blanks to prevent the second piece from falling in, achieving strict one-on-one release. To ensure the certainty and stability of single-piece release, the sliding stroke of the stop block 31 on the discharge cylinder 6 is determined by the structural limiting surface at the end of the slide. Its effective stroke is set to "completely allow the passage space of the lowest piece while retaining the interception position for the upper piece." The inclination angle and curvature of the ramp 36 transition continuously to reduce impact and decrease lateral pressure on the cylindrical rod 27. The arc-shaped abutment rod 34 can achieve micro-phase and height adjustment through the elongated hole on the transfer plate 33 to adapt to different blank sizes and the positioning height of the shelf 18. The inner end face of the stop block 31 is preferably round. The corners are covered with wear-resistant, low-friction linings to reduce wear and scratches on the edges of the blank. Dustproof and small-volume lubrication are provided at the guide slide to ensure long-term low-resistance, smooth reciprocating motion. The preload of the tension spring 30 is selected to be within the range that "the stop block 31 can be reliably held in the partition position when the shelf 18 is not in place, and can be smoothly overcome under the action of the cylindrical rod 27", ensuring that it prevents both double-piece assembly and jamming. During assembly, the center of the discharge port of the discharge cylinder 6 and the placement groove of the shelf 18 are used as references. First, install the sliding pair of the stop block 31 and check for no interference. Then, install the transfer plate 33 and the arc-shaped contact rod 34 and adjust the incident angle of the ramp 36 to allow the cylindrical rod 27 to smoothly enter the arc-shaped groove 35. During the debugging process, the complete cycle of "contact - retraction - locking - release - reset" is verified by slow indexing.Once it is confirmed that the single component is released stably, the secondary obstruction is in place in a timely manner, and there is no jamming or lag, it can be put into continuous operation.

[0047] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention (including the claims) is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in the details for the sake of brevity.

[0048] This invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A precision scraping device for tooth rings and teeth with an automatic correction mechanism, comprising a worktable (1), wherein hydraulic telescopic rods (2) are installed at both ends of one side of the upper end of the worktable (1), and mounting plates (3) are installed at the output ends of the two hydraulic telescopic rods (2), and a scraping rod (12) for machining tooth rings and teeth on a blank is bolted to the middle of the end face of the mounting plate (3) away from the hydraulic telescopic rods (2), characterized in that: The upper end of the workbench (1) is provided with a discharge trough (4) for discharging materials. A support (9) is fixedly connected to the middle of the upper end face of the workbench (1). A turntable (8) is rotatably connected to the middle of the support (9). A plurality of material-holding modules for placing blanks are evenly spaced on one end face of the turntable (8). A feeding component is provided on the upper end of the workbench (1). The feeding component is used to drive the turntable (8) to rotate intermittently to transfer the blanks on the material-holding modules to the moving path of the scraper (12). A support rod (5) is fixedly connected to the upper end of the workbench (1) away from the hydraulic telescopic rod (2). A discharge cylinder (6) for storing blanks to be processed is fixedly connected to the upper end of the support rod (5). A discharge module is provided at the lower end of the discharge cylinder (6). The discharge module discharges materials intermittently to place the blanks to be processed inside it onto the material-holding module. The material support module includes multiple rotating blocks (17) that are rotatably connected to one side of the turntable (8) at uniform intervals. A gear rod (26) is fixedly connected to one side of each of the multiple rotating blocks (17). A material support frame (18) is fixedly connected to one end of the gear rod (26). The end of the material support frame (18) away from the gear rod (26) is semi-circular and has a placement groove for placing blanks. The feeding assembly includes a bracket (16) fixedly connected to one side of the upper end of the workbench (1). A fixed slot block (13) is fixedly connected to the upper end of the bracket (16). A slider (15) is slidably connected inside the fixed slot block (13). A movable slot block (11) is fixedly connected to one side of the slider (15). The movable slot block (11) is slidably connected to the upper end of the bracket (16). A push block (10) is slidably connected inside the movable slot block (11). The end of the push block (10) away from the movable slot block (11) is fixedly connected to the mounting plate (3). The assembly also includes a drive disk (38) rotatably connected inside the turntable (8), with a bracket (24) rotatably connected to the outside of the drive disk (38). Multiple actuating posts (25) are evenly spaced and fixedly connected to the outer side of the turntable (8) away from the rotating block (17). A connecting rod (14) is rotatably connected to one end of the bracket (24). The end of the connecting rod (14) away from the bracket (24) is rotatably connected to the slider (15). The rotatable connection between the bracket (24) and the drive disk (38) is not at the same position as the rotatable connection between the bracket (24) and the connecting rod (14). An automatic material turning and correction mechanism is provided on the upper end of the workbench (1) away from the hydraulic telescopic rod (2). The automatic material turning and correction mechanism includes a fixed rod (19) fixedly connected to the workbench (1). An arc-shaped rack (20) is fixedly connected to the side of the fixed rod (19) near the turntable (8). When the turntable (8) drives the gear rod (26) to rotate to the position of the arc-shaped rack (20), the gear rod (26) and the arc-shaped rack (20) will mesh.

2. The precision scraping equipment for tooth rings with an automatic correction mechanism according to claim 1, characterized in that: Limiting strips (29) are fixedly connected to both ends of the inner wall of the placement groove, and a counterweight (28) is fixedly connected to the lower end of the material rack (18).

3. The precision scraping equipment for tooth rings with an automatic correction mechanism according to claim 2, characterized in that: One end of the insert (24) is fixedly connected to a limiting plate (22), and the upper end of the workbench (1) is fixedly connected to a vertical plate (21) on one side of the support (9). The upper end of the vertical plate (21) is fixedly connected to a limiting post (23). A limiting groove (37) is opened on the side of the limiting plate (22) away from the insert (24), and the limiting groove (37) is slidably connected to the limiting post (23).

4. A precision scraping device for tooth rings with an automatic correction mechanism according to claim 3, characterized in that: The feeding module includes a tension spring (30) fixedly connected to one side of the lower end of the feeding cylinder (6). A connecting seat (32) is fixedly connected to one side end face of the tension spring (30). A stop block (31) is fixedly connected to the lower end of the connecting seat (32). The middle part of the stop block (31) is slidably connected to the feeding cylinder (6), and one end of the stop block (31) is inserted into the two blanks to be processed inside the feeding cylinder (6).

5. A precision scraping device for tooth rings with an automatic correction mechanism according to claim 4, characterized in that: A transmission plate (33) is fixedly connected to one side of the lower end of the stop (31), and an arc-shaped abutment rod (34) is fixedly connected to the lower end of the transmission plate (33). A ramp (36) is provided at the end of the arc-shaped abutment rod (34) near the transmission plate (33).

6. A precision scraping device for tooth rings with an automatic correction mechanism according to claim 5, characterized in that: A cylindrical rod (27) is fixedly connected to the upper end face of the shelf (18). When the cylindrical rod (27) moves to the position of the arc-shaped contact rod (34), it will contact the arc-shaped contact rod (34). An arc-shaped groove (35) is provided at the end of the ramp (36). The outer diameter of the arc-shaped groove (35) corresponds to the outer diameter of the cylindrical rod (27).

7. A precision scraping device for tooth rings with an automatic correction mechanism according to claim 6, characterized in that: The upper end of the feeding cylinder (6) is provided with a feeding cylinder (7).

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