Deburring device for automobile steering knuckle

Abstract

The invention relates to the technical field of automobile part machining, in particular to a deburring device for an automobile steering knuckle. According to the technical scheme, the deburring device comprises a workbench, and a deburring mechanism is arranged on the top face of the workbench and comprises a moving mechanism. By arranging the deburring mechanism, different tool heads can be conveniently and rapidly replaced, the downtime is shortened, the machining efficiency is improved, a second motor is arranged to a second mounting plate, a machined part can be driven to rotate front, back, left and right, comprehensive deburring machining is facilitated, and the machining efficiency is improved. A fork frame of a machined part can be clamped and fixed by arranging the first electric guide rail to the fork frame clamping mechanism, inner holes of the machined part can be conveniently deburred, the inner holes of the machined part can be clamped and fixed by arranging the inner hole clamping mechanism, the outer sides of the machined part can be conveniently deburred, secondary rework is reduced, and the machining efficiency is improved. And by arranging the feeding mechanism, feeding and discharging of the machined parts are facilitated, and manual operation is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile part processing, and particularly relates to a deburring device for an automobile steering knuckle. Background Art

[0002] The automobile steering knuckle is one of the main parts on the automobile steering axle, which can enable the automobile to drive stably and transmit the driving direction sensitively. Due to its complex structure, the automobile steering knuckle includes multiple parts such as a journal, a fork, and a flange. After processing, burrs are easily generated at the edges, hole openings, and groove joints. These burrs not only affect the part accuracy and assembly quality, but also may cause stress concentration, accelerate wear, and even pose potential safety hazards. Therefore, deburring is one of the key processes in the processing of steering knuckles; Traditional mechanical grinding requires manual loading and unloading and adjustment of processing parameters. The labor intensity is high and the efficiency is low during batch production. Burrs in some cross holes and inner cavities need to be manually reprocessed, which is likely to lead to poor consistency. There are a large number of hidden burrs in parts such as the fork, stepped hole, and tooth groove of the steering knuckle. Traditional devices are difficult to reach, and multiple clamping and tool switching are required, resulting in low efficiency and easy omission of processing. Therefore, it is necessary to propose a deburring device for an automobile steering knuckle. Summary of the Invention

[0003] The purpose of the present invention is to propose a deburring device for an automobile steering knuckle aiming at the problems in the background art.

[0004] The technical solution of the present invention: A deburring device for an automobile steering knuckle includes a workbench. A deburring mechanism is arranged on the top surface of the workbench. The deburring mechanism includes a moving mechanism. An installation box is arranged on the front side of the moving mechanism. A motor I is arranged inside the installation box. A hexagonal seat is arranged at the output end of the motor I. Tool heads are arranged on six sides of the hexagonal seat. An installation groove and a rotating groove are opened on the top surface of the workbench. A motor II is arranged inside the installation groove. The output end of the motor II penetrates and extends into the rotating groove and is provided with a mounting plate I. A group of support blocks are arranged on the top surface of the mounting plate I. A motor III is arranged on the front side of the support blocks. The output end of the motor III penetrates and extends between the two support blocks and is provided with a threaded rod. A rack I is threadedly connected to the outer circle of the threaded rod. Two support plates are arranged on the top surface of the mounting plate I. A rotating rod is rotatably arranged inside each support plate. A gear I is arranged on the outer circle of the left end of the rotating rod on the left side. A mounting plate II is arranged between the two rotating rods. Two rectangular grooves are opened on the top surface of the mounting plate II. An electric guide rail I is arranged inside each rectangular groove. A sliding table I is slidably arranged at one end of each electric guide rail I. A fork clamping mechanism is arranged on the top surface of each sliding table I. An inner hole clamping mechanism is arranged on the bottom surface of the mounting plate II. A feeding mechanism is arranged on the top surface of the workbench.

[0005] Preferably, the moving mechanism includes an electric guide rail II. A receiving groove is formed in the top surface of the workbench. The electric guide rail II is located inside the receiving groove. A slide II is slidably arranged in the middle of the electric guide rail II. A vertical plate is arranged on the top surface of the slide II. An electric guide rail III is arranged on the front side of the vertical plate. A slide III is slidably arranged at the top end of the electric guide rail III. An electric guide rail IV is arranged on the front side of the slide III. A slide IV is slidably arranged in the middle of the electric guide rail IV. The front side of the slide IV is fixedly connected to the rear side of the installation box.

[0006] Preferably, the first gear and the first rack are meshed.

[0007] Preferably, an activity groove is formed in the top surface of the first mounting plate corresponding to the position of the second mounting plate.

[0008] Preferably, the fork clamping mechanism includes side plates. A first cylinder push rod is arranged on one side of the side plates. The output end of the first cylinder push rod is rotatably provided with two movable rods. The other end of each movable rod is rotatably provided with a clamping block. Clamping plates are arranged on the side of the two clamping blocks close to each other. Two connecting plates are arranged on one side of the side plates. A fixing rod is arranged between the two connecting plates. The two clamping blocks are rotatably connected to the fixing rod.

[0009] Preferably, the inner hole clamping mechanism includes a circular plate. Two second cylinder push rods are arranged on the bottom surface of the circular plate. The output end of each second cylinder push rod penetrates through the circular plate and extends to the top surface and is fixedly connected to the bottom surface of the second mounting plate. A cavity is formed inside the circular plate. A second gear is rotatably arranged on the inner bottom surface of the cavity. Two second racks are slidably arranged on the inner bottom surface of the cavity. The second racks and the second gear are meshed. A third cylinder push rod is arranged on the inner bottom surface of the cavity. A push-pull plate is arranged at the output end of the third cylinder push rod. One side of the push-pull plate is fixedly connected to one second rack. Connecting blocks are arranged on the top surface of each second rack. Inner support plates are arranged on the top surface of each connecting block.

[0010] Preferably, two trapezoidal grooves are formed on the inner bottom surface of the cavity. Trapezoidal strips are arranged on the bottom surface of the second racks. The trapezoidal strips are slidably connected to the trapezoidal grooves. Sliding grooves are formed on the top surface of the circular plate corresponding to the positions of the connecting blocks. Circular grooves are formed on the top surface of the second mounting plate corresponding to the positions of the two inner support plates.

[0011] Preferably, the feeding mechanism includes a fourth motor, the top surface of the fourth motor is fixedly connected to the top surface of the workbench, the output end of the fourth motor penetrates through and extends to the top surface of the workbench and is provided with a turntable, the top surface of the turntable is provided with a fourth air cylinder push rod, the output end of the fourth air cylinder push rod is provided with a rectangular plate, adjusting grooves are formed on both the left and right sides of the rectangular plate, two fifth motors are arranged on the front side of the rectangular plate, the output end of each fifth motor penetrates through and extends into the adjusting groove and is provided with a bidirectional screw rod, threaded blocks are threadedly connected to the outer circles at both ends of each bidirectional screw rod, and a feeding plate is arranged on one side of each threaded block.

[0012] Compared with the prior art, the present invention has the following beneficial technical effects: By providing a deburring mechanism in the present invention, different tool heads can be quickly replaced, the downtime is reduced, and the processing efficiency is improved. By arranging the second motor to the second mounting plate, the workpiece can be driven to rotate back and forth, left and right, facilitating comprehensive deburring processing. By arranging the first electric guide rail to the fork clamping mechanism, the fork of the workpiece can be clamped and fixed, facilitating deburring the inner hole of the workpiece. By arranging the inner hole clamping mechanism, the inner hole of the workpiece can be clamped and fixed, facilitating deburring the outer side of the workpiece, reducing secondary rework, and improving the processing efficiency. By arranging the feeding mechanism, the workpiece can be loaded and unloaded, reducing manual operation. Description of the Drawings

[0013] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the structure of the deburring mechanism in the present invention; Figure 3 is a schematic diagram of the partial area structure in the present invention; Figure 4 is a schematic diagram of the structure of the fork clamping mechanism in the present invention; Figure 5 is a schematic cross-sectional view of the inner hole clamping mechanism in the present invention; Figure 6 is a schematic diagram of the partial structure of the inner hole clamping mechanism in the present invention; Figure 7 is a schematic diagram of the structure of the feeding mechanism in the present invention.

[0014] Reference numerals: 1, workbench; 2, deburring mechanism; 201, moving mechanism; 2011, electric guide rail II; 2012, sliding table II; 2013, vertical plate; 2014, electric guide rail III; 2015, sliding table III; 2016, electric guide rail IV; 2017, sliding table IV; 202, mounting box; 203, motor I; 204, hexagonal seat; 205, tool head; 3, motor II; 4, mounting plate I; 5, support block; 6, motor III; 7, threaded rod; 8, rack I; 9, support plate; 10, rotating rod; 11, gear I; 12, mounting plate II; 13, electric guide rail I; 14, sliding table I; 15, fork clamp mechanism; 1501, side plate; 1502, cylinder push rod I; 1503, movable rod; 1504, clamping block; 1505, clamping plate; 1506, connecting plate; 1507, fixed rod; 16, inner hole clamping mechanism; 1601, circular plate; 1602, cylinder push rod II; 1603, gear II; 1604, rack II; 1605, cylinder push rod III; 1606, push-pull plate; 1607, connecting block; 1608, inner support plate; 17, feeding mechanism; 1701, motor IV; 1702, turntable; 1703, cylinder push rod IV; 1704, rectangular plate; 1705, motor V; 1706, bidirectional screw; 1707, threaded block; 1708, feeding plate; 18, trapezoidal strip. Detailed implementation mode

[0015] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. Embodiment

[0016] As Figures 1 to 7 shown, a deburring device for an automotive steering knuckle proposed by the present invention includes a workbench 1, a deburring mechanism 2 is arranged on the top surface of the workbench 1, the deburring mechanism 2 includes a moving mechanism 201, the moving mechanism 201 includes an electric guide rail II 2011, a receiving groove is opened on the top surface of the workbench 1, the electric guide rail II 2011 is located inside the receiving groove, a sliding table II 2012 is slidably arranged in the middle of the electric guide rail II 2011, a vertical plate 2013 is arranged on the top surface of the sliding table II 2012, the top surface of the sliding table II 2012 and the bottom surface of the vertical plate 2013 are fixedly connected, an electric guide rail III 2014 is arranged on the front side of the vertical plate 2013, the rear side of the vertical plate 2013 and the rear side of the electric guide rail III 2014 are fixedly connected, a sliding table III 2015 is slidably arranged at the top end of the electric guide rail III 2014, an electric guide rail IV 2016 is arranged on the front side of the sliding table III 2015, the rear side of the sliding table III 2015 and the rear side of the electric guide rail IV 2016 are fixedly connected, a sliding table IV 2017 is slidably arranged in the middle of the electric guide rail IV 2016, the front side of the sliding table IV 2017 and the rear side of the mounting box 202 are fixedly connected, and a mounting box 202 is arranged on the front side of the moving mechanism 201; Inside the installation box 202, there is a first motor 203 fixedly installed inside the installation box 202. At the output end of the first motor 203, there is a hexagonal seat 204. The output end of the first motor 203 is fixedly connected to the rear side of the hexagonal seat 204. Tool heads 205 are provided on all six sides of the hexagonal seat 204, and the hexagonal seat 204 is fixedly connected to the tool heads 205. On the top surface of the workbench 1, there are an installation groove and a rotation groove. Inside the installation groove, there is a second motor 3 fixedly installed inside the installation groove. The output end of the second motor 3 extends through to the inside of the rotation groove and is provided with a first mounting plate 4. The output end of the second motor 3 is fixedly connected to the front side of the first mounting plate 4. On the top surface of the first mounting plate 4, there is a set of support blocks 5. The top surface of the first mounting plate 4 is fixedly connected to the bottom surface of the support blocks 5. On the front side of the support blocks 5, there is a third motor 6. The front side of the support blocks 5 is fixedly connected to the rear side of the third motor 6. The output end of the third motor 6 extends through to between the two support blocks 5 and is provided with a threaded rod 7; The output end of the third motor 6 is rotatably connected to the support block 5. The output end of the third motor 6 is fixedly connected to the front end of the threaded rod 7. The outer ring of the threaded rod 7 is threadedly connected to a first rack 8. The bottom surface of the first rack 8 is in contact with the bottom surface of the first mounting plate 4. By operating the third motor 6, the threaded rod 7 can be driven to rotate. The rotation of the threaded rod 7 can drive the first rack 8 to move back and forth along the threaded rod 7. On the top surface of the first mounting plate 4, there are two support plates 9. The top surface of the first mounting plate 4 is fixedly connected to the bottom surface of the support plates 9. Inside each support plate 9, a rotating rod 10 is rotatably provided. On the outer ring of the left end of the rotating rod 10 on the left side, there is a first gear 11. The outer ring of the rotating rod 10 is fixedly connected to the inner ring of the first gear 11. The first gear 11 is meshed with the first rack 8. By the movement of the first rack 8, the first gear 11 can be driven to rotate. Between the two rotating rods 10, there is a second mounting plate 12. The second mounting plate 12 is fixedly installed between the two rotating rods 10. By the rotation of the first gear 11, the rotating rod 10 can be driven to rotate; The rotation of the rotating rod 10 can drive the second mounting plate 12 to rotate. An activity groove is provided at the position corresponding to the second mounting plate 12 on the top surface of the first mounting plate 4 to facilitate the rotation and operation of the second mounting plate 12. Two rectangular grooves are provided on the top surface of the second mounting plate 12. An electric guide rail 13 is provided inside each rectangular groove, and the electric guide rail 13 is fixedly installed inside the rectangular groove. A first sliding table 14 is slidably provided at one end of each electric guide rail 13. A fork clamping mechanism 15 is provided on the top surface of each first sliding table 14. The fork clamping mechanism 15 includes a side plate 1501. The bottom surface of the side plate 1501 is fixedly connected to the top surface of the first sliding table 14. A first air cylinder push rod 1502 is provided on one side of the side plate 1501, and the side plate 1501 is fixedly connected to the first air cylinder push rod 1502. Two movable rods 1503 are rotatably provided at the output end of the first air cylinder push rod 1502. The two movable rods 1503 are symmetrically arranged in a V-shape. A clamping block 1504 is rotatably provided at the other end of each movable rod 1503. A clamping plate 1505 is provided on the side of the two clamping blocks 1504 that are close to each other; The clamping block 1504 is fixedly connected to the clamping plate 1505. Two connecting plates 1506 are provided on one side of the side plate 1501, and the side plate 1501 is fixedly connected to the connecting plates 1506. A fixing rod 1507 is provided between the two connecting plates 1506, and the fixing rod 1507 is fixedly installed between the two connecting plates 1506. The two clamping blocks 1504 are rotatably connected to the fixing rod 1507. An inner hole clamping mechanism 16 is provided on the bottom surface of the second mounting plate 12. The inner hole clamping mechanism 16 includes a circular plate 1601. Two second air cylinder push rods 1602 are provided on the bottom surface of the circular plate 1601, and the bottom surface of the circular plate 1601 is fixedly connected to the top surface of the second air cylinder push rods 1602. The output end of each second air cylinder push rod 1602 penetrates through and extends to the top surface of the circular plate 1601 and is fixedly connected to the bottom surface of the second mounting plate 12. A cavity is provided inside the circular plate 1601. A second gear 1603 is rotatably provided on the bottom surface inside the cavity. Two second racks 1604 are slidably provided on the bottom surface inside the cavity. Two trapezoidal grooves are provided on the bottom surface inside the cavity. A trapezoidal strip 18 is provided on the bottom surface of the second rack 1604; The bottom surface of the second rack 1604 is fixedly connected to the top surface of the trapezoidal bar 18. The trapezoidal bar 18 is slidably connected to the trapezoidal groove. The trapezoidal bar 18 can be guided and limited through the trapezoidal groove, so that the trapezoidal bar 18 always maintains a straight running state, thereby guiding and limiting the running track of the second rack 1604, so that the second rack 1604 always maintains a straight running state. The second rack 1604 is meshed with the second gear 1603 for easy transmission. The inner bottom surface of the cavity is provided with a third cylinder push rod 1605. The third cylinder push rod 1605 is fixedly installed on the inner bottom surface of the cavity. The output end of the third cylinder push rod 1605 is provided with a push-pull plate 1606. The output end of the third cylinder push rod 1605 is fixedly connected to the push-pull plate 1606. One side of the push-pull plate 1606 is fixedly connected to a second rack 1604. The top surface of each second rack 1604 is provided with a connecting block 1607. The top surface of the second rack 1604 is fixedly connected to the bottom surface of the connecting block 1607. Sliding grooves are formed at positions on the top surface of the circular plate 1601 corresponding to each connecting block 1607; The top surface of each connecting block 1607 is provided with an inner support plate 1608. The top surface of the connecting block 1607 is fixedly connected to the bottom end of the inner support plate 1608. Circular grooves are formed at positions on the top surface of the second mounting plate 12 corresponding to the two inner support plates 1608. A feeding mechanism 17 is arranged on the top surface of the workbench 1. The feeding mechanism 17 includes a fourth motor 1701. The top surface of the fourth motor 1701 is fixedly connected to the top surface of the workbench 1. The output end of the fourth motor 1701 penetrates and extends to the top surface of the workbench 1 and is provided with a turntable 1702. The output end of the fourth motor 1701 is fixedly connected to the bottom surface of the turntable 1702. The top surface of the turntable 1702 is provided with a fourth cylinder push rod 1703. The top surface of the turntable 1702 is fixedly connected to the bottom surface of the fourth cylinder push rod 1703. The output end of the fourth cylinder push rod 1703 is provided with a rectangular plate 1704. The output end of the fourth cylinder push rod 1703 is fixedly connected to the bottom surface of the rectangular plate 1704. Adjustment grooves are formed on both the left and right sides of the rectangular plate 1704. Two fifth motors 1705 are arranged on the front side of the rectangular plate 1704. The front side of the rectangular plate 1704 is fixedly connected to the rear side of the fifth motors 1705; The output end of each fifth motor 1705 penetrates and extends into the adjustment groove and is provided with a bidirectional screw 1706. The output end of the fifth motor 1705 is fixedly connected to the front end of the bidirectional screw 1706. Threaded blocks 1707 are threadedly connected to the outer circles at both ends of each bidirectional screw 1706. A feeding plate 1708 is arranged on one side of each threaded block 1707. The threaded block 1707 is fixedly connected to the feeding plate 1708.

[0017] In this embodiment, when using this device, first, the left and right sides of the feeding mechanism 17 are respectively a feeding area and a discharging area. Place the workpiece in the feeding area, and then transfer the workpiece to the top surface of the second mounting plate 12 through the feeding mechanism 17. The motor five 1705 can be operated, and the output end of the motor five 1705 drives the bidirectional screw 1706 to rotate. The rotation of the bidirectional screw 1706 can drive the two threaded blocks 1707 to move closer to or away from each other, thereby driving the two feeding plates 1708 to clamp the workpiece. Then, the motor four 1701 is operated, and the output end of the motor four 1701 drives the turntable 1702 to rotate. The rotation of the turntable 1702 can drive the cylinder push rod four 1703 to rotate. The rotation of the cylinder push rod four 1703 can drive the rectangular plate 1704 to rotate, and thus drive the workpiece to move to the top surface of the second mounting plate 12. Then, the cylinder push rod four 1703 is operated to make the output end of the cylinder push rod four 1703 contract, so that the rectangular plate 1704 moves downward, thereby placing the workpiece on the top surface of the second mounting plate 12. Then, the workpiece is clamped by the inner hole clamping mechanism 16. The cylinder push rod two 1602 can be operated, and the output end of the cylinder push rod two 1602 drives the circular plate 1601 to move upward, so as to drive the tops of the two inner support plates 1608 to be higher than the top surface of the second mounting plate 12. Then, the cylinder push rod three 1605 is operated, and the output end of the cylinder push rod three 1605 can drive the push-pull plate 1606 to move. The movement of the push-pull plate 1606 can drive the rack two 1604 to move, and drive the two connecting blocks 1607 to move away from each other through the transmission between the rack two 1604 and the gear two 1603, and then support and fix the inner hole of the workpiece through the two inner support plates 1608. Then, the moving mechanism 201 drives 206 to move, which is convenient for deburring processing. At the same time, when the workpiece needs to be flipped, the motor two 3 needs to be operated to drive the first mounting plate 4 to rotate left and right. By operating the motor three 6, the threaded rod 7 can be driven to rotate. The rotation of the threaded rod 7 can drive the rack one 8 to move back and forth along the threaded rod 7. Then, the movement of the rack one 8 drives the gear one 11 to rotate. The rotation of the gear one 11 can drive the rotating rod 10 to rotate, and then drive the second mounting plate 12 to rotate back and forth. After the deburring of the outer part of the workpiece is completed, the clamping of the inner hole can be released, and the fork support clamping mechanism 15 clamps the forks on both sides of the workpiece. The electric guide rail one 13 can be operated to drive the sliding table one 14 to move, and then move the fork support clamping mechanism 15 to a position where it can clamp the forks. Then, the cylinder push rod one 1502 is operated to make the angle between the two movable rods 1503 larger, and then the two clamping plates 1505 are moved closer to each other, so that the forks can be clamped between the two clamping plates 1505. Then, the deburring of the inner hole can be carried out. After the deburring is completed, the workpiece can be transferred to the discharging area through the feeding mechanism 17.

[0018] The above specific embodiments are merely a preferred embodiment of the present invention. Based on the technical solution of the present invention and the relevant revelations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. An automotive steering knuckle deburring device, comprising a workbench (1), characterized in that: A deburring mechanism (2) is provided on the top surface of the workbench (1). The deburring mechanism (2) includes a moving mechanism (201). An installation box (202) is provided on the front side of the moving mechanism (201). A first motor (203) is provided inside the installation box (202). A hexagonal seat (204) is provided at the output end of the first motor (203). Tool heads (205) are provided on each of the six sides of the hexagonal seat (204). An installation groove and a rotating groove are formed on the top surface of the workbench (1). A second motor (3) is provided inside the installation groove. The output end of the second motor (3) extends through and into the rotating groove and is provided with a first installation plate (4). A set of support blocks (5) are provided on the top surface of the first installation plate (4). A third motor (6) is provided on the front side of the support block (5). The output end of the third motor (6) extends through and between the two support blocks (5) and is provided with a threaded rod (7). A first rack (8) is threadedly connected to the outer circle of the threaded rod (7). Two support plates (9) are provided on the top surface of the first installation plate (4). A rotating rod (10) is rotatably provided inside each of the support plates (9). A first gear (11) is provided on the outer circle of the left end of the rotating rod (10) on the left side. A second installation plate (12) is provided between the two rotating rods (10). Two rectangular grooves are formed on the top surface of the second installation plate (12). A first electric guide rail (13) is provided inside each of the rectangular grooves. A first sliding table (14) is slidably provided at one end of each of the first electric guide rails (13). A fork clamping mechanism (15) is provided on the top surface of each of the first sliding tables (14). An inner hole clamping mechanism (16) is provided on the bottom surface of the second installation plate (12). A feeding mechanism (17) is provided on the top surface of the workbench (1).

2. The deburring device for an automotive steering knuckle according to claim 1, wherein The moving mechanism (201) includes a second electric guide rail (2011). A receiving groove is formed on the top surface of the workbench (1). The second electric guide rail (2011) is located inside the receiving groove. A second sliding table (2012) is slidably provided at the middle end of the second electric guide rail (2011). A vertical plate (2013) is provided on the top surface of the second sliding table (2012). A third electric guide rail (2014) is provided on the front side of the vertical plate (2013). A third sliding table (2015) is slidably provided at the top end of the third electric guide rail (2014). A fourth electric guide rail (2016) is provided on the front side of the third sliding table (2015). A fourth sliding table (2017) is slidably provided at the middle end of the fourth electric guide rail (2016). The front side of the fourth sliding table (2017) is fixedly connected to the rear side of the installation box (202).

3. The deburring device for an automotive steering knuckle according to claim 1, wherein The first gear (11) is meshed with the first rack (8).

4. A deburring device for an automotive steering knuckle according to claim 1, characterized in that, An activity groove is formed on the top surface of the first installation plate (4) corresponding to the position of the second installation plate (12).

5. A deburring device for an automotive steering knuckle according to claim 1, characterized in that, The fork support clamping mechanism (15) includes side plates (1501). On one side of the side plates (1501), there is a first cylinder push rod (1502). The output end of the first cylinder push rod (1502) is rotatably provided with two movable rods (1503). The other end of each movable rod (1503) is rotatably provided with a clamping block (1504). On the side where the two clamping blocks (1504) are close to each other, there are clamping plates (1505). On one side of the side plates (1501), there are two connecting plates (1506). Between the two connecting plates (1506), there is a fixed rod (1507). The two clamping blocks (1504) are rotatably connected to the fixed rod (1507).

6. The deburring device for an automotive steering knuckle according to claim 1, characterized in that, The inner hole clamping mechanism (16) includes a circular plate (1601). On the bottom surface of the circular plate (1601), there are two second cylinder push rods (1602). The output end of each second cylinder push rod (1602) penetrates through and extends to the top surface of the circular plate (1601) and is fixedly connected to the bottom surface of the second mounting plate (12). A cavity is formed inside the circular plate (1601). On the inner bottom surface of the cavity, a second gear (1603) is rotatably provided. On the inner bottom surface of the cavity, two second racks (1604) are slidably provided. The second racks (1604) are meshed with the second gear (1603). On the inner bottom surface of the cavity, there is a third cylinder push rod (1605). The output end of the third cylinder push rod (1605) is provided with a push-pull plate (1606). One side of the push-pull plate (1606) is fixedly connected to one second rack (1604). On the top surface of each second rack (1604), there is a connecting block (1607). On the top surface of each connecting block (1607), there is an inner support plate (1608).

7. The deburring device for an automotive steering knuckle according to claim 6, wherein, Two trapezoidal grooves are formed on the inner bottom surface of the cavity. On the bottom surface of the second rack (1604), there is a trapezoidal strip (18). The trapezoidal strip (18) is slidably connected to the trapezoidal groove. At the position corresponding to each connecting block (1607) on the top surface of the circular plate (1601), a sliding groove is formed. At the position corresponding to the two inner support plates (1608) on the top surface of the second mounting plate (12), a circular groove is formed.

8. The deburring device for an automotive steering knuckle according to claim 1, wherein, The feeding mechanism (17) includes a fourth motor (1701). The top surface of the fourth motor (1701) is fixedly connected to the top surface of the workbench (1). The output end of the fourth motor (1701) extends through and penetrates to the top surface of the workbench (1) and is provided with a turntable (1702). The top surface of the turntable (1702) is provided with a fourth cylinder push rod (1703). The output end of the fourth cylinder push rod (1703) is provided with a rectangular plate (1704). Adjustment grooves are formed on both the left and right sides of the rectangular plate (1704). Two fifth motors (1705) are arranged on the front side of the rectangular plate (1704). The output end of each fifth motor (1705) extends through and penetrates into the interior of the adjustment groove and is provided with a bidirectional screw rod (1706). Threaded blocks (1707) are threadedly connected to the outer circles at both ends of each bidirectional screw rod (1706). A feeding plate (1708) is arranged on one side of each threaded block (1707).

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