CN-121624949-B - Polishing equipment for large burrs on surface of casting

Abstract

The application discloses polishing equipment for large burrs on the surface of a casting, which comprises a three-dimensional scanner, wherein the three-dimensional scanner is arranged at one side of a polishing mechanism and is arranged between the three-dimensional scanner and the polishing mechanism in parallel, the three-dimensional scanner is fixedly arranged on a visual angle deviation mechanism, a burr sensing mechanism is fixedly arranged at the side of the polishing mechanism, and in order to solve the technical problem that scanning data are easy to be lost due to blocking of sight when a common three-dimensional scanner faces large-scale shielding burrs, the burr sensing mechanism is in physical contact with the burr sensing mechanism, and the visual angle deviation mechanism is directly and mechanically driven by a linkage control mechanism, so that the visual angle of the three-dimensional scanner can be automatically deflected when the burrs are encountered, the shielding of the burrs is bypassed, three-dimensional data of a shielded area can be more fully obtained, and a more reliable path planning basis is provided for subsequent polishing.

Inventors

• LI WENJUN
• LI REN
• GE JIANG
• ZHANG CONG
• QU SHAOJIE

Assignees

• 大连誉洋工业智能有限公司

Dates

Publication Date

20260508

Application Date

20260204

Claims (4)

1. 1. A equipment of polishing for large-scale burr in foundry goods surface, its characterized in that includes: The machining device comprises a machining platform (1), wherein an X-axis adjusting module (2) is fixedly arranged on the upper surface of the machining platform (1), a Y-axis adjusting module (3) is arranged on the X-axis adjusting module (2), a Z-axis adjusting module (4) is arranged on the Y-axis adjusting module (3), and a polishing mechanism (5) is arranged on the Z-axis adjusting module (4); the three-dimensional scanner (6) is arranged at one side of the polishing mechanism (5) and is arranged in parallel with the polishing mechanism (5); The three-dimensional scanner (6) is fixedly arranged on the visual angle deviation mechanism (7), and one end of the visual angle deviation mechanism (7) is fixedly connected with the polishing mechanism (5); The burr sensing mechanism (8), the burr sensing mechanism (8) is fixedly arranged at the side edge of the polishing mechanism (5), and a linkage control mechanism (9) is connected between the burr sensing mechanism (8) and the visual angle shifting mechanism (7); The polishing mechanism (5) comprises a supporting arm (501), a milling polishing tool (502) and a polishing motor (503); One end of the supporting arm (501) is rotationally connected with a milling and polishing cutter (502), the upper end of the supporting arm (501) is fixedly provided with a polishing motor (503), and the polishing motor (503) is in transmission connection with the milling and polishing cutter (502) through a belt or a coupling; the visual angle offset mechanism (7) comprises a supporting bottom plate (701), a deflection supporting plate (703) and an offset sliding block (704); The support base plate (701) is fixedly arranged at one end of the support arm (501), a first rotating shaft (702) is rotatably connected to the support base plate (701), a deflection support plate (703) is fixedly connected to the arc-shaped wall of the first rotating shaft (702), and when the first rotating shaft (702) rotates, the deflection support plate (703) can be driven to deflect; The deflection supporting plate (703) is connected with a deflection sliding block (704) in a sliding manner, and the three-dimensional scanner (6) is fixedly arranged at the bottom surface of the deflection sliding block (704); An offset gear (706) is fixedly connected to the first rotating shaft (702), the offset gear (706) is meshed with a gear column (707), and the gear column (707) is fixedly connected with a transmission rotating shaft (908) of the linkage control mechanism (9); the burr sensing mechanism (8) comprises a connecting bracket (801), a guide cross plate (802) and a burr contact rod (804), The connecting bracket (801) is fixedly arranged at the side wall position of the supporting arm (501); The bottom end of the connecting bracket (801) is fixedly provided with a guide transverse plate (802), the guide transverse plate (802) is connected with a guide sliding block (803) in a sliding manner, the bottom surface of the guide sliding block (803) is provided with a burr contact rod (804), and the upper surface of the guide sliding block (803) is provided with a connecting seat (805); a movable strip (808) is further connected to one side of the connecting seat (805), a convex tooth (809) is arranged on the upper surface of the movable strip (808), a first gear (810) is further rotatably connected to the side wall of the connecting support (801), and the first gear (810) is used for being meshed with the convex tooth (809); The linkage control mechanism (9) comprises a plate frame (901), a transmission rotating shaft (908) and a second rotating shaft (902), wherein the plate frame (901) is fixedly arranged at the side wall position of the supporting arm (501); The plate frame (901) is rotatably connected with a second rotating shaft (902), one end of the second rotating shaft (902) is fixedly connected with a first driving wheel (903), one side of the first gear (810) is coaxially fixed with a second driving wheel (904), and a driving belt (905) is sleeved between the first driving wheel (903) and the second driving wheel (904).
2. 2. The polishing device for large burrs on the surface of a casting according to claim 1, wherein a transmission rotating shaft (908) is rotatably connected to the plate frame (901), and the transmission rotating shaft (908) is fixedly connected with the gear column (707).
3. 3. The polishing apparatus for large burrs on a casting surface according to claim 1, wherein a second transmission gear (907) is fixedly connected to the arc-shaped wall of the transmission rotating shaft (908), a first transmission gear (906) is fixedly connected to the arc-shaped wall of the second rotating shaft (902), and the second transmission gear (907) and the first transmission gear (906) are meshed with each other.
4. 4. The polishing apparatus for large burrs on the surface of castings according to claim 3, characterized in that one end of said transmission shaft (908) is further provided with a reset damper (909); The reset damper (909) comprises a round fixed shell (9091), a reset torsion spring (9093), a friction sleeve (9094) and a damping friction plate (9095); One end of the transmission rotating shaft (908) extends into an inner cavity of the circular fixing shell (9091) and is in running fit with the circular fixing shell (9091), a protruding plate (9081) is arranged at one end of the transmission rotating shaft (908), a fixing side plate (9092) is fixedly connected in the inner cavity of the circular fixing shell (9091), and a reset torsion spring (9093) is fixedly connected between the fixing side plate (9092) and the protruding plate (9081); The arc wall department fixedly connected with friction sleeve (9094) of transmission pivot (908), sliding is provided with damping friction piece (9095) in the inner chamber of circular fixed shell (9091), damping friction piece (9095) is laminated mutually with the arc surface between friction sleeve (9094).

Description

Polishing equipment for large burrs on surface of casting Technical Field The application relates to the technical field of casting surface machining equipment, in particular to polishing equipment for large burrs on the surface of a casting. Background In the production process of complex metal castings such as engine cylinder covers, casting burrs such as burrs and shackles are inevitably generated on the surfaces of the castings due to the reasons of mold parting, sand core fit gaps and the like, and the burrs on the surfaces of the castings must be cleaned before machining. Traditional burr clearance relies on the manual work to use handheld instrument such as angle mill, rotatory file to operate. The method has the problems of high labor intensity, low production efficiency, dependence on worker experience on polishing quality, poor consistency, serious dust noise hazard and the like. In order to improve the automation level, an automatic polishing system based on an industrial robot and three-dimensional vision is introduced in the prior art, and the typical working flow is that firstly, the complete point cloud data of a casting is obtained through a three-dimensional scanner, a burr area is identified after the complete point cloud data is compared with a CAD digital model, and then a polishing path is planned to finish burr removal; however, when the volume of the burrs is huge, so that the surface of the casting body at the attachment position is completely or partially shielded under the scanning view angle, the three-dimensional scanner with a fixed view angle cannot acquire the three-dimensional information of the surface of the casting body behind the burrs, so that a generated workpiece point cloud model has a cavity or distortion in the area, the subsequent model comparison and burr identification algorithm is invalid, and the boundary between the burrs and the body cannot be accurately judged. That is, the prior art has the following technical problems that when a general three-dimensional scanning polishing device polishes large burrs, the phenomenon of blocking the burrs is easily caused by a visual angle. Therefore, a polishing apparatus for large burrs on the surface of castings has been proposed in view of the above problems. Disclosure of Invention The polishing equipment for the large burrs on the surface of the casting is used for solving the problem that the common three-dimensional scanning polishing equipment in the prior art is easy to cause burr shielding due to the visual angle when polishing the large burrs. According to one aspect of the present application, there is provided a polishing apparatus for large burrs on a casting surface, comprising: The machining platform is fixedly provided with an X-axis adjusting module on the upper surface, a Y-axis adjusting module is arranged on the X-axis adjusting module, a Z-axis adjusting module is arranged on the Y-axis adjusting module, and a polishing mechanism is arranged on the Z-axis adjusting module; the three-dimensional scanner is arranged at one side of the polishing mechanism and is arranged in parallel with the polishing mechanism; The three-dimensional scanner is fixedly arranged on the visual angle deviation mechanism, and one end of the visual angle deviation mechanism is fixedly connected with the polishing mechanism; The burr sensing mechanism is fixedly arranged at the side edge of the polishing mechanism, and a linkage control mechanism is connected between the burr sensing mechanism and the visual angle shifting mechanism. Further, the polishing mechanism comprises a supporting arm, a milling polishing cutter and a polishing motor; One end of the supporting arm is rotationally connected with a milling and polishing cutter, the upper end of the supporting arm is fixedly provided with a polishing motor, and the polishing motor is in transmission connection with the milling and polishing cutter. Further, the visual angle offset mechanism comprises a supporting bottom plate, a deflection supporting plate and an offset sliding block, The support base plate is fixedly arranged at one end of the support arm, a first rotating shaft is rotatably connected to the support base plate, a deflection support plate is fixedly connected to the arc-shaped wall of the first rotating shaft, and when the first rotating shaft rotates, the deflection support plate can be driven to deflect; the deflection supporting plate is connected with a deflection sliding block in a sliding manner, and the three-dimensional scanner is fixedly arranged at the bottom surface of the deflection sliding block. Further, an offset gear is fixedly connected to the first rotating shaft, the offset gear is meshed with a gear column, and the gear column is fixedly connected with a transmission rotating shaft of the linkage control mechanism. Further, the burr sensing mechanism comprises a connecting bracket, a guide transverse plate and a burr contact rod, The