A device for removing burrs after machining of an aluminum die-cast product
By symmetrically setting rotating brushes on the upper and lower surfaces of aluminum die-cast products and using a product rotation drive mechanism, the problem of burr residue after machining of aluminum die-cast products is solved, achieving efficient and stable burr removal and improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINGUANG HUIHONG PRECISION MACHINERY DALIAN CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-05-29
Smart Images
Figure CN224294659U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of die casting technology, specifically to a device for removing burrs from aluminum die-cast products after machining. Background Technology
[0002] During the machining process of aluminum die-cast products (such as gearbox blade-type guide wheels), some dimensions typically require finishing using machining centers and CNC lathes. However, at the start and end points of machining, slight tool wear can easily create tiny burrs at the junction of the machined and unmachined surfaces. While these burrs do not affect dimensional accuracy, they can detach and become part of the final product, leading to serious quality issues.
[0003] Currently, the industry commonly uses a process of adding a fixed brush to a CNC lathe to remove hair lint. However, this method has the following drawbacks:
[0004] 1. Low processing efficiency: The low efficiency of the brush deburring process leads to a longer overall processing cycle and significantly increases production costs.
[0005] 2. Poor lint removal effect: The brush is fixed and does not rotate, and cleaning is carried out by only rotating the workpiece. It is difficult to completely remove tiny lint, especially the irregularly positioned residue.
[0006] 3. Difficult to inspect manually: The hairs are tiny and the residues are randomly located, making it easy to miss them with traditional visual inspection, which increases the risk of subsequent customer complaints. Utility Model Content
[0007] The purpose of this invention is to provide a burr removal device for aluminum die-cast products after machining. This device can reliably remove burrs from the product surface, achieving fully automated burr cleaning operations. It not only significantly improves the surface quality of the product but also greatly increases production efficiency.
[0008] To achieve the above objectives, this application proposes a burr removal device for aluminum die-cast products after machining, comprising:
[0009] The deburring actuator includes a fixedly mounted lower brush assembly and a cylinder-driven upper brush assembly, both arranged in a symmetrical layout.
[0010] The product rotation drive mechanism includes a main servo motor, a first polyurethane clamping block, and a second polyurethane clamping block. The first polyurethane clamping block is connected to the delinting actuator, and the second polyurethane clamping block is connected to the main servo motor. The product is located between the first and second polyurethane clamping blocks and rotates under the drive of the main servo motor. At the same time, the upper and lower brush assemblies perform delinting treatment on the product surface.
[0011] In one embodiment, the depilatory actuator further includes:
[0012] A longitudinally moving cylinder is mounted on a positioning plate, which is equipped with a buffer.
[0013] A movable main board is equipped with a brush assembly on one side and a counterweight on the other side; the movable main board is connected to the output shaft of a longitudinal moving cylinder.
[0014] In one embodiment, the bottom of the positioning plate is provided with a mounting base, and the first flange bearing in the mounting base is connected to the first polyurethane clamping block through a connecting block.
[0015] In one embodiment, the main servo motor is equipped with a motor connecting shaft that passes through the lower motherboard, and a second polyurethane clamping block is fixed to the top of the motor connecting shaft.
[0016] In one embodiment, the motor connecting shaft sits on a second flange bearing, which is fixed to the lower main plate.
[0017] In one embodiment, a positioning mechanism is provided below the depilatory actuator, the positioning mechanism comprising:
[0018] The product limiting plate has guide blocks distributed on it to limit the product, and has a motor connection shaft clearance hole.
[0019] The limit pin passes through the guide hole of the product limit plate and is tightened with the lower main board;
[0020] The compression spring is sleeved on the limit pin and located between the product limit plate and the lower main plate.
[0021] In one embodiment, the positioning plate is provided with a push-opening rod at the bottom, and the push-opening rod contacts the product limiting plate during the product's downward movement.
[0022] In one embodiment, the upper brush assembly includes an upper brush motor, which is connected to the upper brush via an upper coupling, the upper coupling passing through the movable main board and with an upper brush bearing between them.
[0023] In one embodiment, the lower brush assembly includes a lower brush motor connected to the lower brush via a lower coupling. The lower coupling passes through the lower main board and a lower brush bearing is provided between the two. The lower brush is located on one side of the product limiting plate.
[0024] In one embodiment, the lower main board is provided with an in-situ detection sensor. The probe of the in-situ detection sensor extends out of the clearance groove of the product limiting plate. The in-situ detection sensor is connected to a PLC controller. The PLC controller is also connected to a longitudinal movement cylinder, a main servo motor, an upper brush motor, and a lower brush motor.
[0025] Compared with the prior art, the above-mentioned technical solution adopted by this utility model has the following advantages: This device, by symmetrically arranging rotating brushes on the upper and lower surfaces of the product and employing a product rotation drive mechanism, achieves thorough removal of lint from the product surface and edges, reducing the defective product outflow rate to zero ppm and completely eliminating customer complaints. Furthermore, the flexible contact design of the polyurethane clamping block ensures effective transmission while perfectly preventing damage to the product surface.
[0026] This device not only significantly improves production efficiency but also greatly reduces overall maintenance costs. It has successfully overcome the industry-wide technical challenge of burr residue after machining aluminum die-casting parts, thereby significantly enhancing the market competitiveness of products while improving production quality. Attached Figure Description
[0027] Figure 1 A schematic diagram of a burr removal device for aluminum die-cast products after machining.
[0028] Figure 2 This is a schematic diagram of part of the deburring actuator.
[0029] Figure 3 This is a schematic diagram of part of the positioning mechanism;
[0030] Figure 4 A schematic diagram of the product's rotary drive mechanism.
[0031] Figure 5 This is a magnified view of a portion of the lower brush assembly.
[0032] The components are as follows: 1. Longitudinal movement cylinder; 2. Upper brush motor; 3. Positioning plate; 4. Upper coupling; 5. Upper motor mounting column; 6. Moving main board; 7. Upper brush; 8. Bearing column; 9. Buffer; 10. Counterweight; 11. Power distribution box; 12. Top opening rod; 13. Mounting base; 14. Connecting block; 15. First polyurethane clamping block; 16. First flange bearing; 17. Lower main board; 18. Limit pin; 19. Compression spring; 20. Product limit plate; 21. Second flange bearing; 22. Guide block; 23. In-situ detection sensor; 24. Lower brush; 25. Second polyurethane clamping block; 26. Motor connecting shaft; 27. Lower motor mounting column; 28. Second polyurethane clamping block coupling; 29. Lower brush motor; 30. Main servo motor; 31. Linear bearing; 32. Lower brush bearing. Detailed Implementation
[0033] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.
[0034] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.
[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise expressly specified. "Several" means one or more, unless otherwise expressly specified.
[0036] In the description of this application, it should be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0037] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0038] Example 1: As Figure 1 As shown, this embodiment provides a burr removal device for aluminum die-cast products after machining, including a burr removal actuator and a product rotation drive mechanism;
[0039] The lint removal mechanism adopts a symmetrical layout structure consisting of a fixedly installed lower brush assembly and a cylinder-driven upper brush assembly. Through the synergistic action of the upper and lower brushes, lint can be effectively removed from various parts of the product surface.
[0040] The product rotation drive mechanism includes a main servo motor, a first polyurethane clamping block, and a second polyurethane clamping block. The first polyurethane clamping block is connected to the deburring actuator, and the second polyurethane clamping block is connected to the main servo motor. During operation, the product is clamped between the two polyurethane clamping blocks and rotates smoothly under the drive of the main servo motor. At the same time, the upper and lower brush assemblies perform all-round deburring treatment on the rotating product surface, ensuring uniform and consistent treatment results.
[0041] Example 2: Based on Example 1, the deburring actuator is further optimized, including a longitudinally moving cylinder and a moving main plate, such as... Figure 2 As shown. The longitudinal moving cylinder is mounted on a positioning plate equipped with a damper, which reduces vibration and provides stable driving force. The upper brush assembly is mounted on one side of the moving main plate, and a counterweight is positioned on the other side; this balancing design ensures smooth movement of the upper brush assembly. The moving main plate is connected to the output shaft of the longitudinal moving cylinder, enabling precise up-and-down movement control. A first flange bearing is housed in a mounting base at the bottom of the positioning plate. This bearing is connected to a first polyurethane clamping block via a connecting block, ensuring flexible rotation and accurate positioning of the clamping block.
[0042] Example 3: In the above example, a motor connecting shaft passing through the lower motherboard is mounted on the main servo motor, and a second polyurethane clamping block is fixed to the top of the motor connecting shaft, forming a stable power transmission structure. The motor connecting shaft sits on a second flange bearing fixed to the lower motherboard. This support design effectively improves the stability and durability of the transmission.
[0043] like Figure 3 As shown, a positioning mechanism is located below the deburring actuator, including a product limiting plate, a limiting pin, and a compression spring. Guide blocks are distributed on the product limiting plate for precise product positioning, and a clearance hole for the motor connecting shaft is provided. The limiting pin passes through the guide hole of the product limiting plate and is tightened to the lower main plate. The compression spring is sleeved on the limiting pin and located between the product limiting plate and the lower main plate, forming an elastic buffer structure.
[0044] Example 4: A push-opening rod is provided at the bottom of the positioning plate. When the product moves downward, the push-opening rod will contact the product limiting plate and apply downward pressure, causing the product limiting plate to move downward synchronously, thereby ensuring that the product is disengaged from the product limiting plate. The brush assembly includes an upper brush motor, which is connected to the upper brush through an upper coupling. The upper coupling passes through the moving main plate, and an upper brush bearing is provided between the two to ensure smooth transmission. The upper brush motor is fixed to the moving main plate through an upper motor mounting post, and a motor clearance hole is provided on the positioning plate. Figure 4-5As shown, the lower brush assembly includes a lower brush motor connected to the lower brush via a lower coupling. The lower coupling passes through the lower main plate, and a lower brush bearing is provided between the two. The lower brush is located on one side of the product limiting plate. The lower brush motor is fixed to the lower main plate via a lower motor mounting post. Preferably, the bearing posts on both sides of the lower main plate cooperate with the linear bearings on the movable main plate to ensure that the movable main plate can move smoothly up and down along the bearing posts, improving machining accuracy.
[0045] The in-situ detection sensor probe, mounted on the lower main board, extends through the clearance slot of the product limit plate, enabling real-time detection of the product's position. The preferred sensor model is CLJ-C18-5ALA, which is connected to a PLC controller. The PLC controller also simultaneously controls the longitudinal movement cylinder, the main servo motor (preferably 6GN-3K-120W), the upper brush motor (preferably a 40W high-speed DC motor, MAX 3000 rpm), and the lower brush motor (preferably a 40W high-speed DC motor, MAX 3000 rpm), achieving fully automated operation. The PLC controller is located within the power distribution box. In this application, the power distribution box, positioning plate, and lower main board are all mounted on a support frame.
[0046] Example 5: The working process of a burr removal device for machined aluminum die-cast products is as follows: First, the operator places the product to be processed on the product limiting plate. When the position detection sensor detects that the product is in place, it immediately sends a signal to the PLC controller. The PLC controller then activates the longitudinal movement cylinder, driving the burr removal actuator to press down as a whole. As the mechanism moves down, the push rod first contacts and presses down the product limiting plate, causing the product limiting plate and the product to descend synchronously. When it moves down to the set position, the second polyurethane clamping block contacts the product. At this time, the product limiting plate continues to move down and eventually completely separates from the product. At the same time, the first polyurethane clamping block contacts the upper surface of the product and applies appropriate pressure under the drive of the cylinder. During this process, the main servo motor maintains a low-speed rotation state. When both the upper and lower polyurethane clamping blocks are in stable contact with the product, the product begins to rotate under the clamping action (the upper clamping block rotates passively, and the lower clamping block rotates actively).
[0047] During the product's downward movement, its surface first contacts the rotating brush below; as the mechanism continues to move downward, the brush above also contacts the product surface. It should be noted that the upper and lower brush motors start operating as soon as the cylinder begins its downward movement. Through the product's own rotational motion and the relative motion of the brushes, burrs on the product surface are efficiently removed. When the longitudinal movement cylinder moves to the set position, the PLC controller starts timing, typically set to 6-10 seconds (ensuring the product completes at least one full rotation), after which it automatically controls the cylinder to retract. As the cylinder moves upward, the product limit plate rises synchronously under the reset action of the compression spring, moving the product upward until it disengages from the second polyurethane clamping block. At this point, the product stops rotating, and the deburred product can be removed.
[0048] Furthermore, both the upper and lower brushes of this device are position-adjustable via couplings. When the brushes wear down due to prolonged use, the wear can be compensated by adjusting the position of the couplings, thereby significantly extending the brush's lifespan and reducing replacement frequency. The entire process is highly automated, providing stable and reliable lint removal, effectively improving production efficiency and product quality.
[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.
Claims
1. A device for removing burrs from aluminum die-cast products after machining, characterized in that, include: The deburring actuator includes a fixedly mounted lower brush assembly and a cylinder-driven upper brush assembly, both arranged in a symmetrical layout. The product rotation drive mechanism includes a main servo motor, a first polyurethane clamping block, and a second polyurethane clamping block. The first polyurethane clamping block is connected to the delinting actuator, and the second polyurethane clamping block is connected to the main servo motor. The product is located between the first and second polyurethane clamping blocks and rotates under the drive of the main servo motor. At the same time, the upper and lower brush assemblies perform delinting treatment on the product surface.
2. The device for removing burrs from aluminum die-cast products after machining according to claim 1, characterized in that, The depilatory actuator further includes: A longitudinally moving cylinder is mounted on a positioning plate, which is equipped with a buffer. A movable main board is equipped with a brush assembly on one side and a counterweight on the other side; the movable main board is connected to the output shaft of a longitudinal moving cylinder.
3. The burr removal device for aluminum die-cast products after machining according to claim 2, characterized in that, The bottom of the positioning plate is provided with a mounting base, and the first flange bearing in the mounting base is connected to the first polyurethane clamping block through a connecting block.
4. The burr removal device for aluminum die-cast products after machining according to claim 1, characterized in that, The main servo motor is equipped with a motor connecting shaft that passes through the lower main board, and the second polyurethane clamping block is fixed to the top of the motor connecting shaft.
5. The burr removal device for aluminum die-cast products after machining according to claim 4, characterized in that, The motor connecting shaft sits on the second flange bearing, which is fixed to the lower main plate.
6. The burr removal device for aluminum die-cast products after machining according to claim 4, characterized in that, A positioning mechanism is located below the delinting actuator, and the positioning mechanism includes: The product limiting plate has guide blocks distributed on it to limit the product, and has a motor connection shaft clearance hole. The limit pin passes through the guide hole of the product limit plate and is tightened with the lower main board; The compression spring is sleeved on the limit pin and located between the product limit plate and the lower main plate.
7. The burr removal device for aluminum die-cast products after machining according to claim 6, characterized in that, The bottom of the positioning plate is provided with a push-opening rod, which contacts the product limiting plate during the product's downward movement.
8. The device for removing burrs from aluminum die-cast products after machining according to claim 2, characterized in that, The upper brush assembly includes an upper brush motor, which is connected to the upper brush via an upper coupling. The upper coupling passes through the movable main board and an upper brush bearing is provided between the two.
9. The burr removal device for aluminum die-cast products after machining according to claim 6, characterized in that, The lower brush assembly includes a lower brush motor, which is connected to the lower brush via a lower coupling. The lower coupling passes through the lower main board and a lower brush bearing is provided between the two. The lower brush is located on one side of the product limiting plate.
10. The burr removal device for aluminum die-cast products after machining according to claim 6, characterized in that, The lower main board is equipped with an in-situ detection sensor. The probe of the in-situ detection sensor extends through the clearance groove of the product limit plate. The in-situ detection sensor is connected to the PLC controller. The PLC controller is also connected to the longitudinal movement cylinder, the main servo motor, the upper brush motor, and the lower brush motor.