A device for deburring the surface of an aluminum alloy workpiece

Abstract

The utility model discloses a kind of aluminum alloy workpiece surface deburring device, including workbench, burr collection groove, inner bracing expansion mechanism and screw transmission mechanism.The workbench is equipped with burr collection groove and symmetrically distributed sliding slot, screw transmission mechanism is arranged in sliding slot, for driving polishing brush and polishing roll to aluminum alloy wheel hub deburring processing.The inner bracing expansion mechanism includes fixed base, fixed disc, fixed column and support rod, and the automatic clamping and self-locking of wheel hub are realized by gear transmission and arc hole-straight slot cooperation.The utility model adopts double-station polishing design, combined with interference-preventing sliding slot structure, effectively improve deburring efficiency, precision and equipment life, suitable for the automation surface treatment of aluminum alloy wheel hub.

Description

Technical Field

[0001] This utility model relates to the field of deburring technology for automotive parts, and in particular to a deburring device for the surface of aluminum alloy workpieces. Background Technology

[0002] Automotive parts are components of automobiles. Some automotive parts are manufactured from aluminum alloy workpieces. During the manufacturing process of aluminum alloy automotive parts, a large number of burrs remain on their surface, so deburring is necessary.

[0003] The prior art includes a Chinese patent with publication number CN222021131U, which describes a process in which a replaceable limit seat mounted on a fixed plate is used to clamp and position different models of parts during the deburring process. A support and limit mechanism is also added to prevent the parts from deforming.

[0004] However, this technology also has certain drawbacks in the deburring process. For example, after deburring automotive aluminum alloy parts, the burrs cannot be automatically cleaned, and manual cleaning is required, which increases labor costs. The grooves on the worktable make it easy for burrs to fall into the grooves, reducing their service life. Utility Model Content

[0005] To address the problem of inefficient burr removal during the deburring process of automotive aluminum alloy parts, this invention provides a deburring device for aluminum alloy workpieces, solving the issues of manual burr removal and burrs flying into the chute. This invention features a simple structure, high practicality, and effectively reduces labor costs.

[0006] The technical solution adopted by this utility model to solve its technical problem is a deburring device for the surface of aluminum alloy workpieces, comprising: Workbench, internal support expansion mechanism, threaded transmission mechanism, aluminum alloy wheel hub machining parts, and burr collection groove; The worktable is L-shaped, with a burr collection groove on one side and an internal support expansion mechanism on the other side. Two symmetrically distributed sliding grooves are located on one side of the worktable, each housing a threaded transmission mechanism. Each threaded transmission mechanism consists of a motor, a threaded rod, a slide rail, and a slider. The first slider of the first threaded transmission mechanism is equipped with a grinding brush, and the second slider of the second threaded transmission mechanism is equipped with a grinding roller. The internal support expansion mechanism consists of a fixed base, a fixed plate, a fixed column, and a support rod. The fixed plate has an arc-shaped hole, and the fixed base has a straight groove near the fixed plate. The support rod is sandwiched between the straight groove and the arc-shaped hole. A support contact is located at the outer end of the support rod outside the groove, and a protruding post is located at the inner end of the support rod inside the groove. A fixed column is located at the center of the fixed plate, and the aluminum alloy wheel hub is placed near the fixed plate. The fixed base is equipped with a third motor, a small gear and a large gear. The small gear is engaged with the output shaft of the third motor, and the small gear meshes with the large gear. The large gear is connected to the end of the fixed column near the fixed base.

[0007] This invention provides a deburring device for aluminum alloy workpieces, which can solve the problems of manual collection and cleaning of burrs and the easy fall of burrs into the chute in the prior art, extend the service life of the equipment and reduce maintenance costs; the internal support expansion mechanism effectively prevents damage to the surface of aluminum alloy workpieces and greatly reduces auxiliary time; the dual-station collaborative grinding of grinding roller and grinding brush effectively improves work efficiency. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the present invention; Figure 2 A front view diagram provided for this utility model; Figure 3 This is a schematic diagram of the internal support expansion mechanism; Figure 4 This is a schematic diagram of the internal support expansion mechanism.

[0009] Explanation of reference numerals in the attached figures: 1. Workbench; 2. Burr collection groove; 3. Aluminum alloy wheel hub machining parts; 4. Grinding brush; 5. Grinding roller; 6. First motor; 7. Second motor; 8. Slide rail; 9. Internal support expansion mechanism; 10. Slider; 11. Threaded transmission mechanism; 12. Threaded rod; 13. Fixed seat; 14. Fixed plate; 15. Fixed column; 16. Support rod; 17. Straight groove; 18. Arc hole; 19. Third motor; 20. Small gear; 21. Large gear; 22. Support contact; 23. Protruding column; 24. Slide groove. Detailed Implementation

[0010] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0011] like Figures 1 to 4 As shown in the figure, the present invention provides a deburring device for aluminum alloy workpieces, including a worktable 1, a burr collection groove 2, an aluminum alloy wheel hub processing part 3, an internal support expansion mechanism 9, and a thread transmission mechanism 11. The worktable 1 is an L-shaped worktable. The burr collection groove 2 is provided on the side closer to the ground, and two sliding grooves 24 and the internal support expansion mechanism 9 are provided on the side away from the ground. The sliding grooves 24 are symmetrically distributed on both sides of the internal support expansion mechanism 9. The sliding grooves 24 and the burr collection groove 2 are vertically distributed, which can effectively prevent burrs from falling into the sliding grooves 24 and extend the service life. The L-shaped structure of the workbench 1 is fixedly equipped with reinforcing ribs on the side away from the ground to improve the overall structural strength and load-bearing rigidity of the workbench 1. The burr collection groove 2 is specifically configured as an inclined groove or a funnel-shaped structure, so that burr debris can be concentrated and slide into the collection area under the action of gravity, which is convenient for subsequent centralized cleaning. The threaded transmission mechanism 11 is provided in the slide groove 24. The threaded transmission mechanism 11 is driven by a motor. The threaded rod 12, the slide rail 8 and the slider 10 together form the threaded transmission mechanism 11. The slider 10 is threadedly connected to the threaded rod 12. The slider 10 moves axially on the threaded rod 12 and slides on the slide rail 8. The slide rail 8 is specifically a linear guide rail, and the linear guide rail is arranged parallel to the threaded rod 12 to ensure the straightness and stability of the slider 10 when moving axially. The first threaded rod 12 of the first threaded transmission mechanism 11 is equipped with a first motor 6, and a grinding brush 4 is installed at the end of the first slider 10 away from the threaded rod 12. The grinding brush 4 is driven by the motor to rotate circumferentially. The second threaded rod 12 of the second threaded transmission mechanism 11 is equipped with a second motor 7, and a grinding roller 5 is installed at the end of the second slider 10 away from the threaded rod 12. The grinding roller 5 is driven by the motor to work. The first motor 6 and the second motor 7 are both threadedly fixed to the surface of the worktable 1. The internal expansion mechanism 9 includes a fixed base 13, a fixed disk 14, a fixed column 15, a support rod 16, a third motor 19, a pinion 20, and a large gear 21. One end of the fixed column 15 is inside the fixed base 13, and the other end is outside the fixed base 13 and passes through the fixed disk 14. The fixed base 13 is movably connected to the fixed disk 14. The fixed base 13 has a straight groove 17 on the side near the fixed disk 14, and the fixed disk 14 has an arc-shaped hole 18. The support rod 16 includes a support contact 22 and a protrusion 23. The support rod 16 is installed between the fixed base 13 and the fixed disk 14. The protrusion 23 is located in the straight groove 17 and the fixed disk 14. The arc-shaped hole 18 moves; one side of the arc-shaped hole 18 is single arc-shaped, and the other side is multi-arc-shaped. The multi-arc design provides a self-locking mechanism to prevent the support rod 16 from moving toward the fixed column 15, while the single arc design allows the support rod 16 to move toward the fixed column 15. The fixed base 13 is equipped with a third motor 19, a small gear 20, and a large gear 21 as driving components. The output shaft of the third motor 19 is interference-fitted with the small gear 20, the small gear 20 is externally meshed with the large gear 21, and the large gear 21 is interference-fitted with the fixed column 15. The bottom of the third motor 19 is fixed to the surface of the fixed base 13 away from the fixed plate 14. The support contact 22 of the support rod 16 is made of elastic wear-resistant material, and its outer diameter is set to be able to adapt to aluminum alloy wheel hub processing parts 3 with different inner diameter specifications, so as to achieve stable support for different models of wheel hubs. The end of the fixing post 15 away from the fixing seat 13 is transitionally fitted with the inner ring of the center of the aluminum alloy wheel hub machining part 3; The working process of this utility model is as follows: The deburring process of the surface of the aluminum alloy wheel hub processing part 3 is divided into three stages: clamping and positioning, burr grinding and burr collection. Clamping and positioning stage: First, the inner ring of the aluminum alloy wheel hub 3 is placed on the end of the fixed column 15, and the initial positioning is achieved through transition fit; then, the third motor 19 is started to drive the pinion 20 to rotate, which drives the large gear 21 and the fixed column 15 to rotate synchronously. When the fixed column 15 rotates, the fixed plate 14 rotates relative to the fixed seat 13. When the protrusion 23 enters the multi-arc section of the arc hole 18, the support rod 16 moves radially outward, pushing the support contact 22 to press against the inner wall of the wheel hub to achieve self-locking fixation; when the fixed column 15 rotates in the opposite direction, the protrusion 23 enters the single arc section, and the support rod 16 retracts inward; Deburring stage: The second motor 7 drives the second threaded rod 12 to rotate, and adjusts the second slider 10 and the grinding roller 5 to a suitable position on the surface of the aluminum alloy wheel hub 3 for grinding; the first motor 6 drives the first threaded rod 12 to rotate, and drives the first slider 10 to move axially along the slide rail 8, adjusts the horizontal position of the grinding brush 4, and starts the motor of the grinding brush 4 to rotate at high speed to clean the burrs on the surface of the aluminum alloy wheel hub 3; Burr collection stage: Aluminum chips and burrs generated during the grinding process fall into the burr collection groove 2 under the influence of gravity and the cleaning action of the grinding brush 4. After grinding is completed, the inner support expansion mechanism 9 rotates in the opposite direction to release the aluminum alloy wheel hub processing part 3. Working principle: The working principle of this aluminum alloy workpiece deburring device is the workpiece fixing principle of the internal support expansion mechanism 9, the grinding motion principle of the thread transmission mechanism 11, and the anti-interference and chip management principle. Workpiece fixing principle: The third motor 19 drives the small gear 20 to rotate, which drives the large gear 21 and the fixing column 15 to rotate through gear meshing. When the fixing column 15 rotates, the fixing plate 14 (with an arc-shaped hole 18) rotates relative to the fixing seat 13 (with a straight groove 17). Under the constraint of the straight groove 17, the protrusion 23 of the support rod 16 moves along the trajectory of the arc-shaped hole 18. The protrusion 23 moves outward under the action of centrifugal force, pushing the support contact 22 to press against the inner wall of the hub. In the multi-arc section, the friction angle is used to self-lock to prevent retraction. When the protrusion 23 retracts inward along the single arc section, the clamping is released. Grinding motion principle: The first motor 6 and the second motor 7 drive the threaded rod 12 to rotate, and the slider 10 is converted into axial movement through the helical pair (guided by the slide rail 8); the grinding brush 4 and the grinding roller 5 are controlled by independent motors, and simultaneously cover different areas of the hub. After the grinding roller 5 grinds the burrs, the grinding brush 4 sweeps the burrs into the burr collection groove 2. Interference prevention and debris management principle: The slide 24 and the burr collection groove 2 are vertically distributed to prevent aluminum chips and burrs from entering the slide 24 and affecting the service life of the thread transmission mechanism 11. The burrs generated by grinding fall directly into the burr collection groove 2 for easy centralized cleaning.

[0012] The above-disclosed embodiments are merely specific examples of this utility model. However, the embodiments of this utility model are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of this utility model.

Claims

1. A deburring device for aluminum alloy workpieces, comprising a worktable (1), characterized in that, The workbench (1) is an L-shaped workbench with a burr collection groove (2) on the side near the ground and an internal support expansion mechanism (9) and two symmetrically arranged slides (24) on the side away from the ground. The threaded transmission mechanism (11) is located in the slide (24) and includes a threaded rod (12), a slide rail (8) and a slider (10). The slider (10) is threadedly connected to the threaded rod (12) and slides along the slide rail (8). The internal support expansion mechanism (9) includes a fixed seat (13), a fixed plate (14), a fixed column (15), a support rod (16) and a drive assembly. The support rod (16) cooperates with the arc-shaped hole (18) of the fixed plate (14) and the straight groove (17) of the fixed seat (13) through the protrusion (23) to achieve radial clamping or loosening of the hub. The two slides (24) and the threaded transmission mechanism (11) are provided with a grinding brush (4) and a grinding roller (5) in one and the other, respectively.

2. The deburring device for aluminum alloy workpieces as described in claim 1, characterized in that, The drive assembly of the internal expansion mechanism (9) includes: a third motor (19) fixed inside the fixed base (13); a pinion (20) with an interference fit to the output shaft of the third motor (19); and a large gear (21) meshing with the pinion (20) and with an interference fit to the fixed column (15).

3. The deburring device for aluminum alloy workpieces as described in claim 1, characterized in that, The arc-shaped hole (18) includes a single arc segment and multiple arc segments. The multiple arc segments are used for self-locking and fixing of the support rod (16), and the single arc segment is used for releasing the clamp.

4. The deburring device for aluminum alloy workpieces as described in claim 1, characterized in that, The end of the fixed column (15) away from the fixed seat (13) transitions with the inner ring of the center of the aluminum alloy wheel hub machining part (3).

5. The deburring device for aluminum alloy workpieces as described in claim 1, characterized in that, The chute (24) is perpendicular to the burr collection groove (2) to prevent debris from entering the chute (24) and affecting the operation of the thread transmission mechanism (11).

6. The deburring device for aluminum alloy workpieces as described in claim 1, characterized in that, The support contact (22) of the support rod (16) is made of elastic wear-resistant material, which is suitable for wheel hubs with different inner diameters.

7. The deburring device for aluminum alloy workpieces as described in claim 1, characterized in that, The grinding brush (4) and grinding roller (5) are driven by independent motors to achieve rotary grinding.

8. The deburring device for aluminum alloy workpieces as described in claim 1, characterized in that, The burr collection groove (2) is an inclined or funnel-shaped structure, which facilitates the collection and cleaning of debris.

9. The deburring device for aluminum alloy workpieces as described in claim 1, characterized in that, The slide rail (8) is a linear guide rail, which is set parallel to the threaded rod (12).

10. The deburring device for aluminum alloy workpieces as described in claim 1, characterized in that, The L-shaped structure of the workbench (1) has reinforcing ribs on the side away from the ground.

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