Automatic deburring mechanism and method for deep hole of vortex shaft

Abstract

The invention discloses a vortex shaft deep hole automatic deburring mechanism and method, and relates to the technical field of vortex shaft deburring, the vortex shaft deep hole automatic deburring mechanism comprises a cross-shaped plate, four open grooves are formed in the outer side edge of the cross-shaped plate, movable plates are arranged in the open grooves, a supporting column is fixedly connected to the center of the bottom of the cross-shaped plate, and the supporting column is fixedly connected to the center of the bottom of the cross-shaped plate. Blind holes are formed in the sides, close to the supporting columns, of the side walls of the open grooves, two grooves are formed in the inner walls of the blind holes, inserting rods are arranged in the blind holes, through mutual cooperation of a motor, a movable plate, a grinding rod, universal wheels and other structures, an air cylinder can drive an adjusting plate to move up and down, the adjusting plate is moved to one side of the adjacent limiting frame, and therefore the limiting frame can be adjusted. A transmission rod, a threaded rod and a polishing rod penetrate through an adjusting plate, a motor controls the polishing rod to rotate and move left and right or front and back, the polishing rod can process burrs of the deep hole of the vortex shaft, and when the moving range of the polishing rod needs to be enlarged, a movable plate is moved, and the movable plate is matched with universal wheels to drive an inserting rod and a protruding plate to move.

Description

Technical Field

[0001] This invention relates to the field of vortex shaft deburring technology, specifically to an automatic deburring mechanism and method for deep holes in vortex shafts. Background Technology

[0002] The vortex shaft is one of the core components of a turboshaft engine, and it has deep holes on both end faces. During production, deburring is required for these deep holes. However, existing deep hole deburring mechanisms have some problems in use. They are not convenient for manual operation, which may reduce grinding efficiency. They are also not convenient for processing burrs in multiple deep holes of the vortex shaft at the same time, which reduces the applicability of the device. Summary of the Invention

[0003] In view of the above-mentioned shortcomings of the existing technology, the purpose of the present invention is to provide an automatic deburring mechanism and method for deep holes of vortex shafts.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an automatic deburring mechanism for deep holes of vortex shafts, comprising a cross plate, four slots on the outer edge of the cross plate, each slot containing a movable plate, a support column fixedly connected to the center of the bottom of the cross plate, blind holes on the side of the slots near the support column, two grooves on the inner wall of each blind hole, and a rod inserted into each blind hole, the end of the rod away from the support column being fixedly connected to the side of an adjacent movable plate, and two protruding plates fixedly connected to the outer edge of each rod, the protruding plates being located in adjacent grooves.

[0005] Preferably, four limiting frames are provided at the center of the top of the cross plate, and the four limiting frames are arranged linearly from top to bottom. Each limiting frame is provided with a connecting plate at the top, and elastic rods are fixedly connected to the front and rear sides of the connecting plate. The end of the elastic rod away from the connecting plate is fixedly connected to the outer edge of the adjacent limiting frame. The bottom of the lower limiting frame is inserted into the center of the top of the cross plate, and the bottom of the three upper limiting frames is inserted into the top of the adjacent connecting plate.

[0006] Preferably, the limiting frame has vertical slots on both the front and rear sides, and the inner cavity of the limiting frame has an arc-shaped support plate. Movable rods are fixedly connected to both the front and rear sides of the arc-shaped support plate. The end of the movable rod away from the arc-shaped support plate passes through the adjacent vertical slot and is fixedly connected to a connecting plate. Fixed plates are fixedly connected to both the front and rear sides of the limiting frame near the bottom. Springs are fixedly connected to the top of each fixed plate, and the top of the springs is fixedly connected to the bottom of the adjacent connecting plate.

[0007] Preferably, the movable plate has a through hole at its center, a cylinder at its bottom, and a limit plate fixedly connected to the top of the cylinder through the through hole. The limit plate is located at the top of the movable plate, and an adjustment plate is provided at the top of each limit plate. Each adjustment plate has a limit hole in its inner cavity. A hinge is provided at the bottom of the side of the adjustment plate near the support column. The adjustment plate is movably connected to the adjacent limit plate through the hinge. An L-shaped rod is fixedly connected to the bottom of the side of the adjustment plate away from the support column. An arc-shaped plate is fixedly connected to the end of the L-shaped rod away from the adjustment plate.

[0008] Preferably, a fixing ring is fixedly connected to the outer edge of the cylinder near the bottom, and two fixing rods are fixedly connected to the outer edge of each fixing ring. A caster wheel is fixedly connected to the end of each fixing rod away from the fixing ring.

[0009] Preferably, a motor is located on the right side of the adjustment plate, and a transmission rod is fixedly connected to the power output shaft of the motor. The left end of the transmission rod passes through an adjacent limiting hole, and a threaded rod is fixedly connected to the left end of the transmission rod. A grinding rod is located on the left side of the motor, and a threaded hole is opened at the right end of the grinding rod. The threaded rod is threadedly connected to the threaded hole.

[0010] Preferably, a limiting groove is formed on the top of the arc-shaped support plate, and a magnet is fixedly connected in the limiting groove.

[0011] The method for automatic deburring of deep holes using a vortex shaft includes the following steps: S1: When the device starts working, first rotate the four limiting frames to make the openings of the four limiting frames cross each other. The limiting frames rotate on the top of the connecting plate and the cross plate respectively. Then take out the four eddy shafts and pass them through the inside of the adjacent limiting frames. The arc-shaped support plate supports the eddy shafts. The magnet is attracted to the surface of the eddy shaft, thereby limiting the eddy shaft. The weight of the eddy shaft itself will drive the arc-shaped support plate to move downward. The arc-shaped support plate drives the connecting plate to move downward through the movable rod. The connecting plate drives the spring to compress. S2: Then start the adjacent cylinder, which can drive the limit plate, hinge and adjustment plate to move upward, move the adjustment plate to the side of the adjacent limit frame, then take out the motor, pass the transmission rod through the adjustment plate, the arc plate and L-shaped rod support the motor, and the transmission rod drives the grinding rod to move through the threaded rod, moving the grinding rod into the deep hole of the vortex shaft. S3: Start the motor. The motor drives the transmission rod to rotate, which in turn drives the threaded rod to rotate. The threaded rod then drives the grinding rod to rotate and move. The motor is a servo motor, which drives the grinding rod to move left and right or back and forth, thereby cleaning and grinding the burrs in the deep hole. S4: If the vortex shaft is long, move the movable plate appropriately. The movable plate drives the cylinder to move. The cylinder moves in conjunction with the fixed ring, fixed rod and caster. The movable plate drives the insert rod and protrusion plate to move, thereby moving the movable plate and further moving the position of the grinding rod.

[0012] Compared with the prior art, the beneficial effects of the present invention are: This invention utilizes the interplay between a motor, a movable plate, a grinding rod, and casters to enable a cylinder to drive an adjusting plate to move up and down. The adjusting plate is then moved to the side of an adjacent limiting frame. A transmission rod, a threaded rod, and a grinding rod are then passed through the adjusting plate. The motor controls the grinding rod to rotate left and right or forward and backward, thus removing burrs from the deep holes of the vortex shaft. When it is necessary to expand the grinding rod's range of motion, the movable plate is moved, and the movable plate, in conjunction with the casters, moves the insert rod and the protruding plate. Through the cooperation of structures such as limiting frames, arc-shaped support plates, magnets, and connecting plates, the four limiting frames can be rotated at any angle, thereby enabling the simultaneous processing of four eddy shafts. The arc-shaped support plates, together with the magnets, provide limiting support for the eddy shafts, while the connecting plates assist the limiting frames in rotating. Attached Figure Description

[0013] Figure 1 This is a perspective view of the present invention; Figure 2 This is a bottom-view perspective view of the present invention; Figure 3 This is a diagram showing the working state of the present invention; Figure 4 This is an exploded view of the present invention; Figure 5 This is a schematic diagram of the component limiting frame structure of the present invention; Figure 6 This is an exploded view of the motor component of the present invention; Figure 7 This is a schematic diagram of the movable plate structure of the component of the present invention; Figure 8 This is a schematic diagram of the adjustment plate structure of the component of the present invention; Figure 9 This is a schematic diagram of the cross-plate structure of the component of the present invention; Figure 10 This is a schematic diagram of the arc-shaped support plate structure of the component of the present invention.

[0014] The following are the labels in the diagram: 1. Cross plate; 2. Movable plate; 3. Adjusting plate; 4. Limiting frame; 5. Support column; 6. Connecting plate; 7. Elastic rod; 8. Connecting plate; 9. Spring; 10. Fixing plate; 11. Motor; 12. Transmission rod; 13. Threaded rod; 14. Grinding rod; 15. Insert rod; 16. Protruding plate; 17. Arc plate; 18. Limiting plate; 19. L-shaped rod; 20. Cylinder; 21. Fixing ring; 22. Fixing rod; 23. Caster wheel; 24. Slotted; 25. Arc support plate; 26. Magnet; 27. Movable rod. Detailed Implementation

[0015] Please see Figure 1-10 The present invention provides a technical solution: I. Structural Application of Mechanisms in Production Operations This embodiment is based on an automatic deburring mechanism for deep holes in eddy current shafts, and is adapted to the deep hole deburring operation in the mass production of automotive eddy current shafts. The specific structural application is as follows: The cross plate 1, serving as the basic load-bearing component of the mechanism, is fixed to the production workbench. Its four outer slots 24 provide a moving track for the movable plate 2. The bottom of the support column 5 is bolted to the workbench, ensuring the entire mechanism remains stable during high-speed grinding. Blind holes inside the slots 24 engage with the insertion rod 15. As the insertion rod 15 moves with the movable plate 2, the protruding plate 16 slides along the groove, enabling smooth adjustment of the movable plate 2 within a ±50mm range, meeting the processing adaptation requirements of eddy current shafts of different lengths.

[0016] Four limiting frames 4 are arranged linearly on the top of the cross plate 1, and connected to the elastic rod 7 via the connecting plate 6. During production, rotating the limiting frames 4 causes the openings to intersect at 90°, which can simultaneously fix four eddy current shafts (compatible with models φ20-φ50mm). The magnet 26 on the top of the arc-shaped support plate 25 inside the limiting frame 4 attracts the outer circle of the eddy current shaft, and with the elastic support of the spring 9, it can achieve adaptive clamping of eddy current shafts of different diameters, avoiding workpiece scratches caused by hard contact. The compression of the spring 9 can be visually observed through the position of the connecting plate 8 to ensure uniform clamping force.

[0017] The central through hole of the movable plate 2 allows the cylinder 20 to pass through, and the limiting plate 18 restricts the radial displacement of the cylinder 20. The cylinder 20 is a small pneumatic cylinder with a stroke of 100mm. During production, the lifting and lowering are controlled by a solenoid valve, which drives the adjusting plate 3 to precisely align with the height of the deep hole of the vortex shaft (adjustment accuracy ±0.5mm). The adjusting plate 3 can be adjusted from 0-30° by a hinge to adapt to the inclined inlet of the deep hole of the vortex shaft (common in the deep hole design at both ends of automotive vortex shafts). The L-shaped rod 19 and the arc-shaped plate 17 form a support bracket for the motor 11, ensuring that the amplitude of the motor 11 is ≤0.1mm during operation.

[0018] The bottom fixing ring 21 of cylinder 20 is connected to caster wheel 23 via fixing rod 22. During production, when movable plate 2 moves, caster wheel 23 rolls along the worktable surface with friction ≤5N, allowing workers to easily push movable plate 2 to adjust the grinding position. Motor 11 is a 500W servo motor that drives threaded rod 13 via transmission rod 12. Threaded rod 13 is threadedly connected to grinding rod 14, allowing for quick replacement of grinding rods 14 of different specifications from φ5 to φ20mm during production (replacement time ≤30s), adapting to different diameter and depth holes of the vortex shaft.

[0019] II. Implementation Steps for Deburring Methods in Production Operations S1: Workpiece clamping and positioning (production preparation stage) Pre-production equipment inspection: Confirm that the cross plate 1 is firmly fixed and the support column 5 is not loose; the movable plate 2 moves smoothly along the slot 24 and the protruding plate 16 is not stuck. Rotate the four limiting frames 4 so that the openings are distributed in a cross shape (the connecting plate 6 rotates, and the elastic rod 7 assists in positioning). Pass the eddy shafts to be processed (4 pieces in batch) through the limiting frames 4 respectively. The arc-shaped support plate 25 supports the weight of the eddy shaft, and the magnet 26 attracts the outer circle to achieve circumferential positioning. The weight of the eddy shaft (about 1.5kg) drives the arc-shaped support plate 25 to move down, the movable rod 27 slides along the vertical slot, and the connecting plate 8 compresses the spring 9 (compression amount about 10-20mm). After observing that the axes of the four eddy shafts are coplanar, the clamping is completed.

[0020] S2: Grinding position aligned (production adjustment stage) Based on the deep hole height of the vortex shaft (preset 80-150mm), activate the solenoid valve of cylinder 20. Cylinder 20 pushes the limit plate 18 and adjusting plate 3 upward. Observe the height of adjusting plate 3 through the scale on the side of the worktable. After it reaches the correct position, close the solenoid valve (positioning error ≤1mm). Connect the appropriate model grinding rod 14 to the transmission rod 12 through the threaded rod 13. Hold the motor 11 and pass the transmission rod 12 through the limit hole of the adjusting plate 3. The arc plate 17 supports the bottom of the motor 11. Push the motor 11 so that the front end of the grinding rod 14 extends into the deep hole inlet (extending depth of about 5mm). After confirming that there is no interference, fix the power cord of the motor 11.

[0021] S3: Automated deburring process (production execution stage) The servo motor 11 control system is activated, and the grinding parameters are set as follows: rotation speed 1500 r / min, reciprocating stroke 30 mm, grinding time 20 s / piece. Motor 11 drives the transmission rod 12 to rotate, and the threaded rod 13 drives the grinding rod 14 to rotate and reciprocate along the deep hole axis (achieved through forward and reverse rotation of the servo motor 11). During grinding, the spring 9 provides elastic feedback to ensure that the arc-shaped support plate 25 always fits against the eddy current axis, and the magnet 26 prevents the workpiece from rotating with the grinding rod 14. After processing, motor 11 automatically stops, and the grinding rod 14 retracts to the deep hole inlet.

[0022] S4: Adaptation and adjustment for long workpieces (special working condition handling) When machining a long eddy shaft (length > 300mm), loosen the positioning bolts of the movable plate 2, push the movable plate 2 outward along the slot 24, the insert rod 15 extends out of the blind hole along with the movable plate 2, the protruding plate 16 is guided along the groove, and the caster wheel 23 reduces the movement resistance. After moving until the grinding rod 14 can cover the entire length of the deep hole (measured with a tape measure), tighten the positioning bolts of the movable plate 2, and repeat steps S2-S3 to complete the machining.

[0023] Through this embodiment, four eddy current shafts can be processed simultaneously in a single batch, with a deburring time of ≤30s per piece, which is 300% more efficient than manual operation. Furthermore, the amount of burrs remaining on the inner wall of the deep hole after grinding is ≤0.02mm, meeting the precision requirements for automotive parts production.

[0024] Working principle: When the device starts working, first rotate the four limiting frames 4 to rotate the openings of the four limiting frames 4 to the cross state. The limiting frames 4 rotate on the top of the connecting plate 6 and the cross plate 1 respectively. Then take out the four eddy shafts and pass them through the interior of the adjacent limiting frames 4. The arc-shaped support plate 25 supports the eddy shafts. The magnet 26 is attracted to the surface of the eddy shaft, thereby limiting the eddy shaft. The weight of the eddy shaft itself will drive the arc-shaped support plate 25 to move downward. The arc-shaped support plate 25 drives the connecting plate 8 to move downward through the movable rod 27. The connecting plate 8 drives the spring 9 to compress. Then, the adjacent cylinder 20 is activated, which drives the limiting plate 18, hinge, and adjusting plate 3 to move upward, moving the adjusting plate 3 to one side of the adjacent limiting frame 4. Then, the motor 11 is taken out, and the transmission rod 12 is passed through the adjusting plate 3. The arc plate 17 and L-shaped rod 19 support the motor 11. The transmission rod 12 drives the grinding rod 14 to move through the threaded rod 13, moving the grinding rod 14 into the deep hole of the vortex shaft. The motor 11 is activated, and the motor 11 drives the transmission rod 12 to rotate. The transmission rod 12 drives the threaded rod 13 to rotate, and the threaded rod 13 drives the grinding rod 14 to rotate and move. The motor 11 is a servo motor, which drives the grinding rod 14 to move left and right or back and forth, thereby cleaning and grinding the burrs in the deep hole. If the vortex shaft is long, the movable plate 2 is moved appropriately. The movable plate 2 drives the cylinder 20 to move. The cylinder 20 moves in conjunction with the fixed ring 21, the fixed rod 22 and the universal wheel 23. The movable plate 2 drives the insertion rod 15 and the protruding plate 16 to move, thereby moving the movable plate 2 and further moving the position of the grinding rod 14.

Claims

1. An automatic deburring mechanism for deep holes of vortex shafts, comprising a cross plate (1), characterized in that: The outer edge of the cross plate (1) is provided with four slots (24), each slot (24) is provided with a movable plate (2), and a support column (5) is fixedly connected to the center of the bottom of the cross plate (1). Each side wall of the slot (24) near the support column (5) is provided with a blind hole. Each blind hole has two grooves on its inner wall. Each blind hole is provided with a rod (15). The end of the rod (15) away from the support column (5) is fixedly connected to the side of the adjacent movable plate (2). Each outer edge of the rod (15) is fixedly connected with two protrusions (16), and the protrusions (16) are located in the adjacent grooves.

2. The automatic deburring mechanism for deep holes of vortex shafts according to claim 1, characterized in that: Four limiting frames (4) are provided at the top center of the cross plate (1). The four limiting frames (4) are arranged linearly from top to bottom. Each limiting frame (4) is provided with a connecting plate (6) at the top. Elastic rods (7) are fixedly connected to the front and rear sides of the connecting plate (6). The end of the elastic rod (7) away from the connecting plate (6) is fixedly connected to the outer edge of the adjacent limiting frame (4). The bottom of the lower limiting frame (4) is inserted into the top center of the cross plate (1), and the bottom of the three upper limiting frames (4) is inserted into the top of the adjacent connecting plate (6).

3. The automatic deburring mechanism for deep holes of vortex shafts according to claim 1, characterized in that: The limiting frame (4) has vertical slots on both the front and rear sides. The inner cavity of the limiting frame (4) is provided with an arc-shaped support plate (25). The arc-shaped support plate (25) is fixedly connected to the front and rear sides with movable rods (27). The end of the movable rod (27) away from the arc-shaped support plate (25) passes through the adjacent vertical slot and is fixedly connected to a connecting plate (8). The limiting frame (4) is fixedly connected to a fixing plate (10) near the bottom on both the front and rear sides. The top of the fixing plate (10) is fixedly connected to a spring (9). The top of the spring (9) is fixedly connected to the bottom of the adjacent connecting plate (8).

4. The automatic deburring mechanism for deep holes of vortex shafts according to claim 1, characterized in that: The movable plate (2) has a through hole at its center. The movable plate (2) has a cylinder (20) at its bottom. The cylinder (20) has a through hole at its top and is fixedly connected to a limiting plate (18). The limiting plate (18) is located at the top of the movable plate (2). The limiting plate (18) has an adjustment plate (3) at its top. The adjusting plate (3) has a limiting hole in its inner cavity. The adjusting plate (3) has a hinge at its bottom on the side near the support column (5). The adjusting plate (3) is movably connected to the adjacent limiting plate (18) through the hinge. The adjusting plate (3) has an L-shaped rod (19) fixedly connected at its bottom on the side away from the support column (5). The L-shaped rod (19) has an arc plate (17) fixedly connected at its end away from the adjusting plate (3).

5. The automatic deburring mechanism for deep holes of vortex shafts according to claim 1, characterized in that: Each cylinder (20) has a fixed ring (21) fixedly connected to its outer edge near the bottom. Each fixed ring (21) has two fixed rods (22) fixedly connected to its outer edge. Each fixed rod (22) has a universal wheel (23) fixedly connected to its end away from the fixed ring (21).

6. The automatic deburring mechanism for deep holes of vortex shafts according to claim 1, characterized in that: A motor (11) is located on the right side of the adjustment plate (3). The power output shaft of the motor (11) is fixedly connected to a transmission rod (12). The left end of the transmission rod (12) passes through an adjacent limiting hole. The left end of the transmission rod (12) is fixedly connected to a threaded rod (13). A grinding rod (14) is located on the left side of the motor (11). A threaded hole is opened at the right end of the grinding rod (14). The threaded rod (13) is threadedly connected in the threaded hole.

7. The automatic deburring mechanism for deep holes of vortex shafts according to claim 1, characterized in that: The top of the arc-shaped support plate (25) has a limiting groove, and a magnet (26) is fixedly connected in the limiting groove.

8. The method for automatic deburring mechanism of vortex shaft deep hole according to any one of claims 1-7, characterized in that, Includes the following steps: S1: When the device starts working, first rotate the four limiting frames (4) to rotate the openings of the four limiting frames (4) to the cross state. The limiting frames (4) rotate on the top of the connecting plate (6) and the cross plate (1) respectively. Then take out the four eddy shafts and pass them through the interior of the adjacent limiting frames (4). The arc support plate (25) supports the eddy shafts. The magnet (26) is attracted to the surface of the eddy shaft, thereby limiting the eddy shafts. The weight of the eddy shafts themselves will drive the arc support plate (25) to move downward. The arc support plate (25) drives the connecting plate (8) to move downward through the movable rod (27). The connecting plate (8) drives the spring (9) to compress. S2: Then start the adjacent cylinder (20), which can drive the limit plate (18), hinge and adjustment plate (3) to move upward, move the adjustment plate (3) to the side of the adjacent limit frame (4), then take out the motor (11), pass the transmission rod (12) through the adjustment plate (3), the arc plate (17) and L-shaped rod (19) support the motor (11), the transmission rod (12) drives the grinding rod (14) to move through the threaded rod (13), and move the grinding rod (14) into the deep hole of the vortex shaft; S3: Start the motor (11), the motor (11) drives the transmission rod (12) to rotate, the transmission rod (12) drives the threaded rod (13) to rotate, the threaded rod (13) drives the grinding rod (14) to rotate and move, the motor (11) is a servo motor, thereby driving the grinding rod (14) to move left and right or back and forth, thereby cleaning and grinding the burrs in the deep hole; S4: If the vortex shaft is long, the movable plate (2) is moved appropriately. The movable plate (2) drives the cylinder (20) to move. The cylinder (20) moves in conjunction with the fixed ring (21), the fixed rod (22) and the caster (23). The movable plate (2) drives the insert rod (15) and the protruding plate (16) to move, thereby moving the movable plate (2) and further moving the position of the grinding rod (14).

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