Flexible grinding device for castings

Abstract

A flexible grinding device for castings, comprising a grinding cylinder, wherein the outer wall at the bottom of the grinding cylinder is provided with a first gear, a protective cylinder is provided outside the grinding cylinder, a cavity is formed between the grinding cylinder and the protective cylinder, a plurality of rotating shafts are evenly provided along the circumferential direction at the inner bottom of the protective cylinder, one end of the rotating shaft is rotatably connected to a second gear, and the second gear is meshed with the first gear; one of the rotating shafts is connected to a driving motor, and the driving motor is fixed in the protective cylinder, a horizontal fixing plate is provided in the grinding cylinder, a fixing mechanism is evenly provided on the upper surface of the fixing plate, the fixing plate is connected to the inner bottom of the grinding cylinder through a connecting assembly below, and a spiral grinding belt is provided on the inner wall of the grinding cylinder along the circumferential direction. The flexible grinding device for castings proposed by the present invention can fully grind the surface of the casting, avoid leaving dead angles, improve grinding efficiency and grinding effect, and can also be cleaned during the grinding process, which is convenient and quick.

Description

Technical Field

[0001] The invention relates to the technical field of casting processing equipment, in particular to a casting flexible grinding device. Background Art

[0002] Castings are metal shaped objects obtained by various casting methods, that is, the smelted liquid metal is poured into a pre-prepared mold by pouring, injection, suction or other casting methods, and then cooled and polished to obtain objects with a certain shape, size and performance.

[0003] After the casting is smelted and formed, burrs and particles often appear on its surface, which is not only unsightly but also affects its quality of use. The traditional way is to use manual grinding to eliminate burrs and particles on the surface. This is not only labor-intensive, but also manual grinding cannot evenly grind the surface of the casting. If the operation is improper, the casting will be worn out.

[0004] However, the grinding equipment in the prior art usually uses multiple rotating rods, and the rotation of the rotating rods drives the iron sand particles to rub against the surface of the casting to achieve the grinding effect. However, since multiple rotating rods are set up, their rotation directions are different, which makes the iron sand particles move irregularly, resulting in interaction forces during the movement and reducing the grinding effect; and dead angles are left during grinding, so that it cannot be fully polished. Summary of the invention

[0005] The purpose of the present invention is to provide a flexible grinding device for castings to solve the above problems.

[0006] To achieve the above purpose, the following technical scheme is adopted: a flexible grinding device for castings, including a grinding cylinder, a first gear is provided on the outer wall of the bottom of the grinding cylinder, a protective cylinder is provided on the outside of the grinding cylinder, a cavity is formed between the grinding cylinder and the protective cylinder, a plurality of rotating shafts are evenly provided at the bottom of the inner bottom of the protective cylinder along the circumferential direction, one end of the rotating shaft is rotatably connected to a second gear, and the second gear is meshed with the first gear; one of the rotating shafts is connected to a driving motor, the driving motor is fixed in the protective cylinder, a horizontal fixing plate is provided in the grinding cylinder, a fixing mechanism is evenly provided on the upper surface of the fixing plate, the fixing plate is connected to the bottom of the grinding cylinder through a connecting assembly, and a spiral grinding belt is provided on the inner wall of the grinding cylinder along the circumferential direction. Its function or effect: the casting surface located inside the grinding cylinder is in contact with the spiral grinding belt, and when the grinding cylinder rotates, the spiral grinding belt is used to process the casting surface; and the setting of the spiral grinding belt allows the iron sand particles to move up and down, avoiding dead angles during the grinding process and achieving full grinding.

[0007] Preferably, the upper surface of the fixing plate is provided with a spiral partition perpendicular to the horizontal plane, and the fixing mechanism is located between the spiral partitions. Its function or effect is: the iron sand inside the grinding cylinder is located in the channel formed between the spiral partitions, and the casting is located between the spiral partitions. When the driving motor rotates forward or reverse, the iron sand and the surface of the casting are rubbed to achieve full grinding and avoid dead corners; and a large number of casting surfaces can be processed to improve efficiency.

[0008] Preferably, the connecting assembly includes a fixed block fixed under the fixed plate, a sliding cavity is provided in the fixed block, a pipe is slidably connected inside the sliding cavity, the lower end of the pipe extends to the outside of the sliding cavity and passes through the grinding cylinder and the protective cylinder in turn, the bottom end of the pipe is connected to a water inlet channel, a sealed bearing is embedded in the bottom of the grinding cylinder, the pipe is connected to the sealed bearing to ensure the rotation of the grinding cylinder and the fixation of the pipe, a water inlet pump is also provided on the pipe, the water inlet pump is located outside the protective cylinder, a first channel is also provided on the pipe, the first channel is located at the upper end of the bottom of the grinding cylinder, the pressure generated by the water inlet pump is used to make the fixed block slide upward, so that the first channel is opened to realize the connection between the pipe and the inside of the grinding cylinder, and after the connection, the casting can be cleaned or polished; during cleaning, the spiral grinding belt is set to realize the up and down rotation and movement of the cleaning liquid to improve efficiency.

[0009] Preferably, a limit ring is fixed on the upper end of the pipe, and the limit ring is slidably connected with the sliding cavity, and a limit spring is sleeved on the pipe, and the limit spring is located in the sliding cavity at the lower end of the limit ring. Its function or effect: It plays a limiting role to prevent the pipe from leaving the sliding cavity.

[0010] Preferably, the fixed plate is evenly provided with second holes, so that the space at the upper end of the fixed plate is connected to the pipeline, while limiting the iron sand particles on the upper end of the fixed plate from falling down; when the iron sand particles with smaller particles cannot achieve the grinding effect, they can be discharged through the second hole.

[0011] Preferably, the fixing mechanism is a vacuum suction cup or a clamp. Its function or effect: to fix the casting.

[0012] Preferably, the spiral grinding belt and the spiral partition are both provided with a third hole, which has the following functions or effects: the resistance generated by the spiral grinding belt and the spiral partition when working can be reduced, so as to improve the grinding efficiency or cleaning effect.

[0013] Preferably, a movable door is provided at the top of the protection tube, which has the function or effect of facilitating the fixing or taking out of the casting to be polished.

[0014] Preferably, the driving motor is a forward and reverse motor. Its function or effect is to enable the grinding drum to achieve forward and reverse rotation during operation, so as to improve the grinding efficiency or cleaning effect.

[0015] Preferably, it also includes multiple grinding cylinders, each of which is provided with a fixing plate, a fixing mechanism, a spiral grinding belt, a connecting assembly, a driving motor and a protective cylinder connected to the grinding cylinder. The grinding cylinders are connected to each other via a connecting assembly and a water inlet channel, that is, grinding cylinders of the same structure are used, and the water inlet pump arranged at the lower end of the grinding cylinder can be controlled singly without affecting each other, so as to achieve grinding efficiency and cleaning effect.

[0016] Preferably, a support frame is provided at the bottom end of the protection tube for supporting the protection tube and the polishing tube.

[0017] Beneficial effects achieved by the present invention: The flexible grinding device for castings proposed by the present invention can fully grind the surface of the casting, avoid leaving dead corners, and improve the grinding efficiency and grinding effect. The grinding cylinder, protective cylinder, rotating shaft, first gear, second gear, driving motor, fixed plate, spiral grinding belt and spiral partition are provided to process the surface of the casting, so that the iron sand particles are driven to move in a predetermined direction during the grinding process, and the iron sand particles are prevented from interacting with each other due to different movement rules to reduce the grinding effect; the fixed block, sliding cavity, pipeline, water inlet channel, sealed bearing, water inlet pump and first channel are provided, so that the grinding cylinder is connected with the pipeline, so that the cleaning liquid can enter, and the iron sand particles can be suspended in the grinding cylinder at this time, so that the casting can be fully polished and cleaned, further improving the grinding effect and realizing the cleaning of the casting. A plurality of grinding cylinders with the same structure are provided, and the water inlet pump provided at the lower end of the grinding cylinder can realize single control, and the grinding cylinders do not affect each other to achieve grinding efficiency or cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the flexible grinding device for castings of the present invention.

[0019] Figure 2 for Figure 1 Enlarged structural diagram at A in the middle.

[0020] Figure 3 It is a schematic diagram of the top view of the structure of the flexible grinding device for castings of the present invention.

[0021] Figure 4 It is a schematic structural diagram of another state of the flexible grinding device for castings of the present invention.

[0022] Figure 5 for Figure 4 Enlarged structural diagram at B in the middle.

[0023] Figure 6 It is a schematic diagram of the connection structure of multiple grinding cylinders of the flexible grinding device for castings of the present invention.

[0024] In the figure, 1-grinding cylinder, 2-protecting cylinder, 3-rotating shaft, 4-first gear, 5-second gear, 6-driving motor, 7-fixed plate, 8-spiral grinding belt, 9-spiral partition, 10-fixed block, 11-sliding cavity, 12-pipeline, 13-water inlet channel, 14-sealed bearing, 15-water inlet pump, 16-first channel, 17-limiting ring, 18-limiting spring, 19-second channel, 20-vacuum suction cup, 21-movable door, 22-support frame. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention are described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] See attached Figure 1-6 A flexible grinding device for castings comprises a grinding cylinder 1, a first gear 4 is provided on the outer wall of the bottom of the grinding cylinder 1, a protective cylinder 2 is provided on the outside of the grinding cylinder 1, a cavity is formed between the grinding cylinder 1 and the protective cylinder 2, a plurality of rotating shafts 3 are evenly provided on the inner bottom of the protective cylinder 2 along the circumferential direction, a second gear 5 is rotatably connected to one end of the rotating shaft 3, and the second gear 5 is meshed with the first gear 4; one of the rotating shafts 3 is connected to a driving motor 6, and the driving motor 6 is fixed in the protective cylinder 2, a horizontal fixing plate 7 is provided in the grinding cylinder 1, and a fixing mechanism is evenly provided on the upper surface of the fixing plate 7, and the fixing plate 7 is connected to the inner bottom of the grinding cylinder 1 through a connecting assembly at the bottom, and a spiral grinding belt 8 is provided on the inner wall of the grinding cylinder 1 along the circumferential direction.

[0028] The upper surface of the fixing plate 7 is provided with spiral partitions 9 which are perpendicular to the horizontal plane, and the fixing mechanism is located between the spiral partitions 9 .

[0029] The connecting assembly includes a fixed block 10 fixed below the fixed plate 7, a sliding cavity 11 is provided in the fixed block 10, a pipe 12 is slidably connected inside the sliding cavity 11, the lower end of the pipe 12 extends to the outside of the sliding cavity 11 and passes through the grinding cylinder 1 and the protective cylinder 2 in sequence, the bottom end of the pipe 12 is connected to a water inlet channel 13, a sealed bearing 14 is embedded in the bottom of the grinding cylinder 1, the pipe 12 is connected to the sealed bearing 14, a water inlet pump 15 is also provided on the pipe 12, the water inlet pump 15 is located outside the protective cylinder 2, and a first channel 16 is also provided on the pipe 12, and the first channel 16 is located at the upper end of the bottom of the grinding cylinder 1.

[0030] A limit ring 17 is fixed at the upper end of the pipe 12 , and the limit ring 17 is slidably connected to the sliding cavity 11 . A limit spring 18 is sleeved on the pipe 12 , and the limit spring 18 is located in the sliding cavity 11 at the lower end of the limit ring 17 .

[0031] The fixing plate 7 is evenly provided with second holes 19 .

[0032] The fixing mechanism is a vacuum suction cup 20 or a clamp.

[0033] The spiral grinding belt 8 and the spiral partition plate 9 are both provided with a third channel.

[0034] A movable door 21 is provided at the top of the protection tube 2 .

[0035] The driving motor 6 is a forward and reverse motor.

[0036] It also includes multiple grinding cylinders 1, each of which is provided with a fixing plate 7, a fixing mechanism, a spiral grinding belt 8, a connecting component, and a driving motor 6 and a protective cylinder 2 connected to the grinding cylinder 1. The grinding cylinders 1 are connected to each other via a connecting component and a water inlet channel 13.

[0037] A support frame 22 is provided at the bottom end of the protection tube 2 .

[0038] Working principle: When in use, open the movable door 21, and fix one or more castings that need to be polished or cleaned in the fixing mechanism at the upper end of the fixing plate 7, that is, fix them on the vacuum suction cup 20 or the clamp, wherein the suction cup 20 or the clamp is the prior art and will not be described in detail here; after the fixation is completed, due to the gravity of the casting, the fixing plate 7 moves downward, thereby driving the fixing block 10 to slide downward, and when the fixing block 10 slides to contact the upper surface of the polishing cylinder 1, the fixing block 10 cooperates with the first channel 16 to achieve the closure of the first channel 16.

[0039] After the fixing is completed, the movable door 21 is closed, and the driving motor 6 is turned on, so that the output end of the driving motor 6 drives the second gear 5 to rotate, and the first gear 4 meshing therewith rotates, thereby driving the grinding cylinder 1 to rotate; because the pipeline 12 is rotatably connected to the grinding cylinder 1 through the sealing bearing 14, and the pipeline 12 is fixedly connected to the protective cylinder 2, the pipeline 12 is fixed and the grinding cylinder 1 rotates.

[0040] When the grinding cylinder 1 rotates, the spiral grinding belt 8 grinds the casting surface, and the iron sand particles inside the grinding cylinder 1 move upward or downward under the action of the spiral grinding belt 8, so that the iron sand particles are in full contact with the casting surface to be processed, thereby improving the grinding effect.

[0041] The spiral partitions 9 and the castings fixed between the spiral partitions 9 allow iron sand particles to enter between the spiral partitions 9 when the grinding cylinder 1 rotates, thereby further improving the grinding effect.

[0042] When it is necessary to further improve the grinding effect, the water inlet pump 15 can be turned on to allow the cleaning liquid to enter the grinding cylinder 1 along the pipeline 12; that is, the water inlet pump 15 is turned on, and under its action, the cleaning liquid enters the sliding cavity 11 and forms pressure. When the pressure is large enough and completely overcomes the gravity of the material force on the upper end of the fixed plate 7, the fixed block 10 moves upward and drives the fixed plate 7 to move upward, so that the first channel 16 will be opened. When the cleaning liquid reaches the specified liquid level, the water inlet pump 15 can be turned off, and the cleaning liquid enters the grinding cylinder 1 and cooperates with the iron sand particles to suspend the iron sand particles in the grinding cylinder, thereby fully treating the surface of the casting; and the cleaning liquid entering the grinding cylinder 1 also has a cleaning effect.

[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A casting flexible grinding device, comprising a grinding cylinder (1), characterized in that: A first gear (4) is provided on the outer wall of the bottom of the grinding cylinder (1); a protective cylinder (2) is provided outside the grinding cylinder (1); a cavity is formed between the grinding cylinder (1) and the protective cylinder (2); a plurality of rotating shafts (3) are evenly provided on the inner bottom of the protective cylinder (2) along the circumferential direction; one end of the rotating shaft (3) is rotatably connected to a second gear (5); the second gear (5) is meshed with the first gear (4); one of the rotating shafts (3) is connected to a driving motor (6); the driving motor (6) is fixed in the protective cylinder (2); a horizontal fixing plate (7) is provided in the grinding cylinder (1); fixing mechanisms are evenly provided on the upper surface of the fixing plate (7); the fixing plate (7) is connected to the inner bottom of the grinding cylinder (1) through a connecting assembly; a spiral grinding belt (8) is provided on the inner wall of the grinding cylinder (1) along the circumferential direction; The upper surface of the fixing plate (7) is provided with spiral baffles (9) perpendicular to the horizontal plane, and the fixing mechanism is located between the spiral baffles (9); The connection assembly comprises a fixed block (10) fixed below the fixed plate (7); a sliding cavity (11) is provided in the fixed block (10); a pipe (12) is slidably connected to the inside of the sliding cavity (11); the lower end of the pipe (12) extends to the outside of the sliding cavity (11) and passes through the grinding cylinder (1) and the protective cylinder (2) in sequence; the bottom end of the pipe (12) is connected to a water inlet channel (13); a sealing bearing (14) is embedded in the bottom of the grinding cylinder (1); the pipe (12) is connected to the sealing bearing (14); a water inlet pump (15) is also provided on the pipe (12); the water inlet pump (15) is located outside the protective cylinder (2); a first hole (16) is also provided on the pipe (12); the first hole (16) is located at the upper end of the bottom of the grinding cylinder (1).

2. The casting flexible grinding device according to claim 1, characterized in that: A limit ring (17) is fixed to the upper end of the pipe (12), and the limit ring (17) is slidably connected to the sliding cavity (11). A limit spring (18) is sleeved on the pipe (12), and the limit spring (18) is located in the sliding cavity (11) at the lower end of the limit ring (17).

3. The casting flexible grinding device according to claim 1 or 2, characterized in that: The fixing plate (7) is evenly provided with second holes (19).

4. The casting flexible grinding device according to claim 1, characterized in that: The fixing mechanism is a vacuum suction cup (20).

5. The casting flexible grinding device according to claim 1, characterized in that: The spiral grinding belt (8) and the spiral partition plate (9) are both provided with a third hole.

6. The casting flexible grinding device according to claim 1, characterized in that: A movable door (21) is provided at the top end of the protection tube (2).

7. The casting flexible grinding device according to claim 1, characterized in that: The driving motor (6) is a forward and reverse motor.

8. The casting flexible grinding device according to claim 1, characterized in that: It also comprises a plurality of grinding cylinders (1), each of which is provided with a fixing plate (7), a fixing mechanism, a spiral grinding belt (8), a connecting assembly, and a driving motor (6) and a protective cylinder (2) connected to the grinding cylinder (1), and the grinding cylinders (1) are connected to each other via the connecting assembly and a water inlet channel (13).

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