Aluminum casting burr trimming equipment

Abstract

The aluminum casting burr trimming equipment comprises a machine base, a workpiece conveying platform and a vertical grinding shaft are arranged on the machine base, a plurality of positioning openings are formed in the workpiece conveying platform, a deburring movement assembly is detachably arranged on the positioning openings, and the deburring movement assembly comprises a bottom plate; a rectangular annular sliding rail with fillets is arranged on the bottom plate, the grinding shaft is located over the center of the sliding rail, a sliding block is arranged on the sliding rail in a sliding fit mode, a rotating head is rotationally arranged in the center of the bottom plate, a driving head is arranged at the bottom of the workpiece conveying platform, a driving rod is arranged on the rotating head in the radial direction, and a workpiece positioning seat is rotationally arranged on the sliding block. A first gear is fixedly arranged at the bottom of the workpiece positioning seat, a gear shaft rotationally penetrates through the bottom plate, a second gear and a third gear are fixed to the two ends of the gear shaft, and a fourth gear is fixed to the inner side of the corner of the annular sliding rail. Burr removal of the rectangular aluminum casting with the rounded-corner outer contour can be rapidly and efficiently achieved, and the equipment manufacturing and maintaining cost is low.

Description

Technical Field

[0001] The invention belongs to the technical field of aluminum casting burr trimming equipment, in particular to aluminum casting burr trimming equipment. Background Art

[0002] Aluminum casting is a process of pouring heated liquid aluminum into a pre-prepared mold cavity, and then opening the mold to take out the molded product after it cools, solidifies or solidifies. It can produce products with complex shapes and high dimensional accuracy, and is widely used in many fields such as machinery manufacturing, automobiles, aerospace, and handicrafts. In the aluminum casting processing industry, burrs and flash will form on the surface of the casting after the casting is cast, which needs to be removed manually or by mechanical equipment.

[0003] In the prior art, burrs and flash are removed manually. Workers use files, sandpaper, hand-held electric grinders, scrapers and other equipment to remove burrs and flash, but the efficiency is low and it consumes a lot of manpower. There are also automated deburring equipment for removal. These devices include a positioning seat for positioning aluminum castings, a multi-axis linkage mechanical arm is provided on the side of the positioning seat, and a grinding shaft is provided on the multi-axis linkage mechanical arm. By controlling the running trajectory of the multi-axis linkage mechanical arm, the running trajectory of the grinding shaft is controlled, and the burr removal operation at multiple positions on the surface of complex aluminum castings is realized. Although it is feasible to remove burrs from aluminum castings with simple structures such as rectangular shapes, the equipment purchase and maintenance costs are high, and the outer contour of a large part of aluminum castings is a rectangle with rounded corners. This application aims to develop a burr trimming device with low manufacturing and maintenance costs for such outer contours. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an aluminum casting burr trimming device, which can quickly and efficiently remove burrs from aluminum castings whose outer contour is a rectangular shape with rounded corners, and has low manufacturing and maintenance costs.

[0005] In order to solve the above technical problems, the present invention is solved by the following technical solutions: an aluminum casting deburring device, comprising a machine base, a workpiece conveying platform and a vertical grinding axis are arranged on the machine base, a plurality of positioning ports are arranged on the workpiece conveying platform, a deburring motion component is detachably arranged on the positioning port, the deburring motion component comprises a bottom plate, a rectangular annular slide rail with rounded corners adapted to the outer wall of the aluminum casting is arranged on the bottom plate, the grinding axis is located directly above the center of the slide rail, a slider is slidably arranged on the slide rail, a rotating head is rotatably arranged at the center of the bottom plate, and a rotating head which is rotatably arranged at the bottom of the workpiece conveying platform is arranged to rotate with the bottom of the workpiece conveying platform. The rotating head cooperates with a driving head driven by a first driving motor, and a driving rod for moving the slider is radially arranged on the rotating head. A workpiece positioning seat is rotatably arranged on the slider, and a first gear is fixedly arranged at the bottom of the workpiece positioning seat. A gear shaft is rotatably penetrated through the bottom plate, and a second gear and a third gear are fixedly arranged at both ends of the gear shaft. A fourth gear is fixedly arranged on the inner side of the corner of the annular slide rail, and the first gear is meshed with the second gear. When the slider passes through the rounded corner of the rectangular annular slide rail, the third gear is meshed with the fourth gear, and the transmission ratio of the first gear to the fourth gear is 1:1. When this aluminum casting deburring and trimming equipment is in use, a worker positions the undeburred workpiece on the workpiece positioning seat, and transports the workpiece to the fitting grinding shaft through the transport of the workpiece conveying platform. The grinding shaft rotates to remove burrs and flash, and then the first drive motor drives the rotating head to rotate. During the rotation of the rotating head, the slider is moved along the rectangular annular slide rail, and the workpiece rotates around the fitting grinding shaft. During the movement, when passing through the rounded corner of the rectangular annular slide rail, the first gear, the second gear, the third gear and the fourth gear cooperate. During the process of the slider rotating 90 degrees, the workpiece positioning seat rotates 90 degrees in the opposite direction relative to the slider, so that the orientation of the workpiece positioning seat remains unchanged, so that the workpiece can translate along the rectangular annular slide rail, and the slider rotates on the slide rail at least one circle, thereby removing burrs and flash on the outer contour of the workpiece. This aluminum casting deburring and trimming equipment can quickly and efficiently remove burrs from aluminum castings whose outer contour is a rectangle with rounded corners, and the equipment manufacturing and maintenance costs are low.

[0006] In the above technical solution, preferably, the workpiece conveying platform includes a rotating platform driven by a second driving motor, and a plurality of positioning openings are evenly arranged on the outer circumference of the rotating platform. The structure can realize continuous deburring processing, and the workpiece positioning seat that is not aligned with the grinding axis is used to load or unload the workpiece.

[0007] In the above technical solution, preferably, the driving head can be axially slidably sleeved on the output shaft of the first driving motor, a first spring is arranged between the driving head and the output shaft of the first driving motor, the top of the driving head is conical and a plurality of protrusions are arranged from the center outward, and a matching groove matching the protrusions on the top of the driving head is arranged at the bottom of the rotating head, and the driving head extends into the matching groove and rotates to drive the rotating head to rotate. With this structure, during the operation of the workpiece conveying platform, due to the elastic force of the first spring, the driving head can automatically match with the matching groove on the rotating head.

[0008] In the above technical solution, preferably, the bottom of the rotating head is provided with guide grooves on both sides of the matching groove for guiding the driving head to enter or leave the matching groove. This structure makes it smoother for the driving head to enter and leave the matching groove.

[0009] In the above technical solution, preferably, a guide hole is provided on the side of the first gear close to the bottom plate, a second spring and a ball head positioning rod are provided in the guide hole, four positioning grooves are evenly provided on the bottom plate around the rotation center of the workpiece positioning seat, and the ball head positioning rod is inserted into the positioning groove to limit the workpiece positioning seat. The ball head positioning rod inserted into the positioning groove can be used to position the workpiece positioning seat, so as to avoid accidental shaking of the workpiece positioning seat during movement, and can ensure that the relative angle between the workpiece positioning seat and the bottom plate is accurate when loading and unloading the workpiece, so as to ensure the accurate processing position of the workpiece.

[0010] In the above technical solution, preferably, the deburring motion assembly is detachably fixed to the positioning port by bolts. This structure enables the deburring motion assembly to be easily replaced, and by replacing the deburring motion assembly with different motion trajectories, the device can be used to remove burrs from workpieces with various different outer contours.

[0011] In the above technical solution, preferably, a first lifting seat is provided on the machine base, and the grinding shaft is provided on the first lifting seat. The lifting of the first lifting seat can be used for lifting the grinding shaft, so as to avoid the workpiece.

[0012] In the above technical solution, preferably, a second lifting seat is provided on the machine base, and the first driving motor is provided on the second lifting seat. The lifting of the second lifting seat can also be used to insert or remove the driving head from the matching slot on the rotating head.

[0013] In the above technical solution, preferably, a socket is provided at the bottom of the slider, and the driving rod is inserted into the socket. With this structure, there is a limit between the slider and the driving rod, and the position of the slider is determined by the position of the driving rod, which can more accurately locate the position of the slider.

[0014] Compared with the prior art, the present invention has the following beneficial effects: when the aluminum casting deburring device is in use, a worker positions the undeburred workpiece on the workpiece positioning seat, and conveys the workpiece to the fitting grinding shaft through the conveyance of the workpiece conveying platform. The grinding shaft rotates to remove burrs and flash, and then the first driving motor drives the rotating head to rotate. During the rotation of the rotating head, the slider is moved along the rectangular annular slide rail, and the workpiece rotates around the fitting grinding shaft and around it. During the movement, when passing through the rounded corner of the rectangular annular slide rail, the first gear, the second gear, the third gear and the fourth gear cooperate. During the process of the slider rotating 90 degrees, the workpiece positioning seat rotates 90 degrees in the opposite direction relative to the slider, so that the orientation of the workpiece positioning seat remains unchanged, so that the workpiece can translate along the rectangular annular slide rail, and the slider rotates on the slide rail at least one circle, thereby removing burrs and flash on the outer contour of the workpiece. The aluminum casting deburring device can quickly and efficiently realize the burr removal of aluminum castings whose outer contour is a rectangle with rounded corners, and the equipment manufacturing and maintenance costs are low. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of an embodiment of the present invention.

[0016] Figure 2 Schematic diagram of the structure of the deburring motion component in an embodiment of the present invention.

[0017] Figure 3 It is a schematic structural diagram of the other side of the deburring motion component in an embodiment of the present invention.

[0018] Figure 4 Schematic diagram of the structure of the bottom of the workpiece positioning seat in an embodiment of the present invention.

[0019] Figure 5 It is a schematic diagram of the structure of the cooperation between the rotating head and the slider in an embodiment of the present invention.

[0020] Figure 6 Schematic diagram of the structure of the first drive motor in an embodiment of the present invention. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments: Figures 1 to 6A burr trimming device for aluminum castings comprises a machine base 1, on which a workpiece conveying platform 2 and a vertical grinding shaft 3 are arranged, on which a plurality of evenly distributed positioning ports 4 are arranged, on which a deburring motion component 5 is detachably arranged, and the deburring motion component 5 comprises a bottom plate 6, on which a rectangular annular slide rail 7 with rounded corners adapted to the outer wall of the aluminum casting is arranged, the grinding shaft 3 is located directly above the center of the slide rail 7, on which a slider 8 is slidably arranged, and a roller matching the slide rail 7 is arranged at the bottom of the slider 8, and the slider 8 can slide along the rectangular annular slide rail 7, and a rotating head 9 is rotatably arranged at the center of the bottom plate 6, and a driving head 11 matched with the rotating head 9 and driven by a first driving motor 10 is arranged at the bottom of the workpiece conveying platform 2, and a driving rod 91 for moving the slider 8 is radially arranged on the rotating head 9, and the driving rod 91 is driven by a first driving motor 10. The screw is detachably fixed on the rotating head 9, and a workpiece positioning seat 12 is rotatably provided on the slider 8. A structure for fixing the workpiece is provided on the top of the workpiece positioning seat 12, such as a groove matching the workpiece, or a fixture and a clamping cylinder for clamping the workpiece. These structures can be individually designed according to different workpieces. A first gear 13 is fixedly provided at the bottom of the workpiece positioning seat 12, and a gear shaft is rotatably penetrated on the base plate 6. A second gear 15 and a third gear 16 are fixedly provided at both ends of the gear shaft. A fourth gear 17 is fixedly provided on the inner side of the corner of the annular slide rail 7, and the center of the fourth gear 17 is located at the center of the fillet of the annular slide rail 7. The first gear 13 meshes with the second gear 15. When the slider 8 passes through the fillet of the rectangular annular slide rail 7, the third gear 16 meshes with the fourth gear 17. The transmission ratio of the first gear 13 to the fourth gear 17 is 1:1. When the aluminum casting deburring and trimming equipment is in use, a worker positions the undeburred workpiece on the workpiece positioning seat 12, and conveys the workpiece to the fitting grinding shaft 3 through the workpiece conveying platform 2. The grinding shaft 3 rotates to remove burrs and flash, and then the first driving motor 10 drives the rotating head 9 to rotate. During the rotation of the rotating head 9, the slider 8 is moved along the rectangular annular slide rail 7, and the workpiece rotates around the fitting grinding shaft 3. During the movement, when passing through the fillet of the rectangular annular slide rail 7, the third gear 16 is meshed with the fourth gear 17, and the fourth gear 17 causes the third gear 16 to rotate, and the second gear 15 is driven to rotate by the gear shaft, and the second gear 15 is driven to rotate by the gear shaft. The wheel 15 drives the first gear 13 to rotate, so that the workpiece locating seat 12 rotates in the opposite direction relative to the slider 8. Since the transmission ratio of the first gear 13 to the fourth gear 17 is 1:1, when the slider 8 rotates 90 degrees, the workpiece locating seat 12 rotates 90 degrees in the opposite direction relative to the slider 8, so that the orientation of the workpiece locating seat 12 remains unchanged, so that the workpiece can translate along the rectangular annular slide rail 7, and the slider 8 rotates on the slide rail 7 at least one circle, so as to remove burrs and flash on the outer contour of the workpiece. This aluminum casting burr trimming equipment can quickly and efficiently remove burrs from aluminum castings whose outer contour is a rectangle with rounded corners, and the equipment manufacturing and maintenance costs are low.

[0022] It should be noted that the driving rod 91 should be higher than the fourth gear 17 , the third gear 16 should be lower than the driving rod 91 , and the height of the third gear 16 should match that of the fourth gear 17 to prevent the driving rod 91 from colliding with the fourth gear 17 during rotation.

[0023] In this embodiment, the workpiece conveying platform 2 includes a rotating platform 19 driven by a second driving motor 18, and a plurality of positioning openings 4 are evenly arranged on the outer periphery of the rotating platform 19. The structure can realize continuous deburring processing, and the workpiece positioning seat 12 that is not aligned with the grinding axis 3 is used to load or unload the workpiece.

[0024] In this embodiment, the driving head 11 can be axially slidably sleeved on the output shaft of the first driving motor 10, a first spring is arranged between the driving head 11 and the output shaft of the first driving motor 10, the top of the driving head 11 is conical and a plurality of protrusions 20 are arranged from the center outward, and a matching groove 21 matching the protrusion 20 on the top of the driving head 11 is arranged at the bottom of the rotating head 9, and the driving head 11 extends into the matching groove 21 and rotates to drive the rotating head 9 to rotate. With this structure, during the operation of the workpiece conveying platform 2, due to the elastic force of the first spring, the driving head 11 can automatically match with the matching groove 21 on the rotating head 9.

[0025] In this embodiment, guide grooves 22 for guiding the driving head 11 to enter or leave the matching groove 21 are arranged on both sides of the matching groove 21 at the bottom of the rotating head 9. This structure makes it smoother for the driving head 11 to enter and leave the matching groove 21.

[0026] In this embodiment, a guide hole 23 is provided on one side of the first gear 13 close to the bottom plate 6, and a second spring and a ball head positioning rod 24 are provided in the guide hole 23. Four positioning grooves 25 are evenly provided on the bottom plate 6 around the rotation center of the workpiece positioning seat 12, and the ball head positioning rod 24 is inserted into the positioning groove 25 to limit the workpiece positioning seat 12. The elastic force of the second spring pushes the ball head end of the ball head positioning rod 24 toward and against the bottom plate 6. Except when the slider passes through the fillet, the ball head positioning rod 24 is located outside the positioning groove 25. At other positions, the ball head positioning rod 24 is inserted into one of the positioning grooves 25. The ball head positioning rod 24 inserted into the positioning groove 25 can be used to position the workpiece positioning seat 12, so as to prevent the workpiece positioning seat 12 from shaking accidentally during the movement, and can ensure that the relative angle between the workpiece positioning seat 12 and the bottom plate 6 is accurate when loading and unloading the workpiece, so as to ensure the accurate processing position of the workpiece.

[0027] In this embodiment, the deburring motion component 5 is detachably fixed to the positioning opening 4 by bolts. Of course, in other embodiments, any other existing detachable fixed connection method can also be adopted. The deburring motion component 5 can be easily replaced by adopting this structure. By replacing the deburring motion component 5 with different motion trajectories, the device can be used to remove burrs of workpieces with various different outer contours.

[0028] In this embodiment, a first lifting seat 26 is provided on the machine base 1, and a grinding shaft 3 is provided on the first lifting seat 26. The lifting of the first lifting seat 26 can be used to lift the grinding shaft 3, so as to avoid the workpiece, and the second lifting seat 26 can be driven to lift by a cylinder, a hydraulic cylinder or an electric push rod.

[0029] In this embodiment, a socket is provided at the bottom of the slider 8, and the driving rod 91 is inserted into the socket. With this structure, there is a limit between the slider 8 and the driving rod 91, and the position of the slider 8 is determined by the position of the driving rod 91, which can more accurately locate the position of the slider 8.

[0030] In another embodiment, a second lifting seat is provided on the base 1, and a first driving motor 10 is provided on the second lifting seat. The lifting of the second lifting seat can also be used to insert or remove the driving head 11 into or out of the matching slot 21 on the rotating head 9.

[0031] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A burr trimming device for aluminum castings, comprising a machine base (1), on which a workpiece conveying platform (2) and a vertical grinding axis (3) are arranged, characterized in that: The workpiece conveying platform (2) is provided with a plurality of positioning openings (4), and a deburring motion assembly (5) is detachably provided on the positioning opening (4), and the deburring motion assembly (5) comprises a bottom plate (6), and a rectangular annular slide rail (7) with rounded corners adapted to the outer wall of the aluminum casting is provided on the bottom plate (6), and the grinding shaft (3) is located directly above the center of the slide rail (7), and a slider (8) is slidably provided on the slide rail (7), and a rotating head (9) is rotatably provided at the center of the bottom plate (6), and a driving head (11) driven by a first driving motor (10) and cooperating with the rotating head (9) is provided at the bottom of the workpiece conveying platform (2), and a radially arranged slider (8) for moving the slider is provided on the rotating head (9). A driving rod (91) of a block (8) is provided, the slider (8) is rotatably provided with a workpiece positioning seat (12), the bottom of the workpiece positioning seat (12) is fixedly provided with a first gear (13), the bottom plate (6) is rotatably provided with a gear shaft, the two ends of the gear shaft are fixedly provided with a second gear (15) and a third gear (16), the inner side of the corner of the annular slide rail (7) is fixedly provided with a fourth gear (17), the first gear (13) is meshed with the second gear (15), when the slider (8) passes through the rounded corner of the rectangular annular slide rail (7), the third gear (16) is meshed with the fourth gear (17), and the transmission ratio of the first gear (13) to the fourth gear (17) is 1:

1.

2. The aluminum casting burr trimming device according to claim 1, characterized in that: The workpiece conveying platform (2) comprises a rotating platform (19) driven by a second driving motor (18), and a plurality of positioning openings (4) are evenly arranged on the outer circumference of the rotating platform (19).

3. The aluminum casting burr trimming device according to claim 1, characterized in that: The driving head (11) is axially slidably sleeved on the output shaft of the first driving motor (10); a first spring is arranged between the driving head (11) and the output shaft of the first driving motor (10); the top of the driving head (11) is conical and has a plurality of protrusions (20) arranged from the center outward; the bottom of the rotating head (9) is provided with a matching groove (21) matching with the protrusion (20) on the top of the driving head (11); the driving head (11) extends into the matching groove (21) and rotates to drive the rotating head (9) to rotate.

4. The aluminum casting burr trimming device according to claim 3, characterized in that: The bottom of the rotating head (9) is provided with guide grooves (22) on both sides of the matching groove (21) for guiding the driving head (11) to enter or leave the matching groove (21).

5. The aluminum casting burr trimming device according to claim 1, characterized in that: A guide hole (23) is provided on one side of the first gear (13) close to the base plate (6), a second spring and a ball head positioning rod (24) are provided in the guide hole (23), four positioning grooves (25) are evenly provided on the base plate (6) around the rotation center of the workpiece positioning seat (12), and the ball head positioning rod (24) is inserted into the positioning groove (25) to limit the workpiece positioning seat (12).

6. The aluminum casting burr trimming device according to claim 1, characterized in that: The deburring motion component (5) is detachably fixed to the positioning opening (4) by means of bolts.

7. The aluminum casting burr trimming device according to claim 1, characterized in that: A first lifting seat (26) is arranged on the machine base (1), and the grinding shaft (3) is arranged on the first lifting seat (26).

8. The aluminum casting burr trimming device according to claim 1, characterized in that: A second lifting seat is arranged on the machine base (1), and the first driving motor (10) is arranged on the second lifting seat.

9. The aluminum casting burr trimming device according to claim 1, characterized in that: The sliding block (8) is provided with a socket, and the driving rod (91) is inserted into the socket.

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