Deburring device for precoated sand casting

Abstract

The utility model relates to the technical field of deburring devices for precoated sand castings, in particular to a deburring device for precoated sand castings, which comprises an operation table, a dust collection hopper, a negative pressure fan, a rotary loading disc and a polishing mechanism. A dust collection hopper is installed in the center of the operation table, a grinding mechanism is arranged on one side of the dust collection hopper, an air blowing nozzle is arranged on the other side of the dust collection hopper, a rotary carrying disc penetrates through the middle of the dust collection hopper, the side face of the bottom communicates with a negative-pressure fan through a negative-pressure pipe, and the other end of the negative-pressure fan communicates with a dust collection box. The rotating loading disc comprises a rotating motor, a rotating shaft, a tray, a three-jaw air cylinder and a clamping piece; the rotating motor is mounted at the bottom of the console and connected with the rotating shaft through an output shaft; a tray is mounted at the top of the rotating shaft; a three-jaw air cylinder is arranged in the center of the tray, and clamping pieces are fixed to the periphery of the three-jaw air cylinder. According to the design, burrs can be fully removed, dust and chippings generated by deburring can be collected, the environment is prevented from being polluted, and the requirements for energy conservation and new energy are met.

Description

Technical Field

[0001] The utility model relates to the technical field of deburring devices for coated sand castings, in particular to a deburring device for coated sand castings. Background Art

[0002] The coated sand casting is a casting produced by the coated sand casting process. The coated sand casting process uses a polyethylene film covering the surface of the mold as a separator, then injects mortar into the mold, removes the polyethylene film, and finally obtains the casting. The coated sand casting has suitable physical strength properties and can be made into high-strength shell core coated sand, medium-strength hot core box coated sand or low-strength non-ferrous alloy coated sand as needed. It has good fluidity and can produce complex sand cores with clear contours and dense structures, such as cylinder heads and cylinder water jacket cores; the surface quality of the sand core of the coated sand casting is good, and less or no coating can be applied to obtain better casting surface quality, the surface roughness can reach Ra=6.3~12.5μm, and the dimensional accuracy can reach CT7~CT9 level; the casting has good disintegration and is easy to clean; the sand core has strong anti-hygroscopicity and long storage time, which is conducive to storage, transportation and use.

[0003] Especially after using the coated sand casting process, the excess material on the casting surface needs to be removed. Choose the appropriate deburring method to ensure that it does not damage the casting or affect its performance, and the removed burrs should be properly handled to avoid pollution to the environment. Utility Model Content

[0004] In order to overcome the existing deficiencies, the utility model provides a deburring device for coated sand castings.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a deburring device for coated sand castings, comprising an operating table, a dust collecting hopper, a negative pressure fan, a rotating loading plate and a grinding mechanism; a dust collecting hopper is installed in the center of the operating table, a grinding mechanism is provided on one side of the dust collecting hopper, a blowing nozzle is provided on the other side, a rotating loading plate is installed through the middle, the bottom side is connected to the negative pressure fan through a negative pressure pipe, and the other end of the negative pressure fan is connected to a dust collecting box; the rotating loading plate comprises a rotating motor, a rotating shaft, a tray, a three-claw cylinder and a clamping piece; the rotating motor is installed at the bottom of the operating table and connected to the rotating shaft through an output shaft; the rotating shaft passes through the dust collecting hopper, and a tray is installed on the top; a three-claw cylinder is provided in the center of the tray, and clamping pieces are fixed around the three-claw cylinder.

[0006] According to another embodiment of the utility model, it further includes that the grinding mechanism includes a telescopic cylinder, a brush wheel and a scraper; the telescopic cylinder is fixed on the operating table through a mounting plate, and the output shaft is connected to the slide seat; the bottom of the slide seat is slidably connected to the slide rail, and a positioning plate is installed on the top, the scraper is fixed in the middle of the positioning plate by a clamping block, and brush wheels are provided on both sides of the scraper.

[0007] According to another embodiment of the utility model, further comprising: a positioning frame is provided at the front end of the positioning plate, a groove is provided in the middle of the positioning frame for the scraper to pass through, and rollers are provided through the upper and lower sides; a brush wheel is installed on the roller.

[0008] According to another embodiment of the utility model, it further includes that an infrared rangefinder is installed on the side of the positioning frame.

[0009] According to another embodiment of the utility model, further comprising: a sliding block is provided at the bottom of the sliding seat, and the sliding block matches the sliding rail.

[0010] According to another embodiment of the utility model, the positioning member is an L-shaped structure, with a long end fixed on the pallet and a short end perpendicular to the pallet.

[0011] According to another embodiment of the utility model, the blowing nozzles are provided with a plurality of groups mounted on a positioning frame.

[0012] The beneficial effect of the utility model is that the dust and debris in the dust collecting hopper can enter the dust collecting box through the negative pressure fan, and the loading plate can be rotated to adapt to castings of various sizes. The grinding mechanism can be used to deburr the surface all around, which can not only fully remove the burrs, but also collect the dust and debris generated by removing the burrs to avoid polluting the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the structure of the rotating carrier plate;

[0016] Figure 3 It is a top view of the dust collecting hopper, rotating loading plate, grinding mechanism and blowing nozzle assembly;

[0017] Figure 4 It is a schematic diagram of the structure of the scraper and the positioning frame.

[0018] In the figure, 1, operating table, 2, dust collecting hopper, 3, negative pressure fan, 4, rotating loading plate, 5, grinding mechanism, 6, blowing nozzle, 7, dust collecting box, 8, rotating motor, 9, rotating shaft, 10, tray, 11, three-claw cylinder, 12, positioning piece, 13, telescopic cylinder, 14, brush wheel, 15, scraper, 16, slide seat, 17, slide rail, 18, positioning plate, 19, clamping block, 20, positioning frame, 21, infrared rangefinder, 22, adjustment frame. DETAILED DESCRIPTION

[0019] like Figure 1 It is a structural schematic diagram of the utility model, a deburring device for coated sand castings, characterized in that it includes an operating table 1, a dust collecting hopper 2, a negative pressure fan 3, a rotating loading plate 4 and a grinding mechanism 5; a dust collecting hopper 2 is installed in the center of the operating table 1, a grinding mechanism 5 is provided on one side of the dust collecting hopper 2, a blowing nozzle 6 is provided on the other side, a rotating loading plate 4 is installed through the middle, and the bottom side is connected to the negative pressure fan 3 through a negative pressure pipe, and the other end of the negative pressure fan 3 is connected to the dust collecting box 7; the rotating loading plate 4 includes a rotating motor 8, a rotating shaft 9, a tray 10, a three-claw cylinder 11 and a clamping piece 12; the rotating motor 8 is installed at the bottom of the operating table 1 and connected to the rotating shaft 9 through an output shaft; the rotating shaft 9 passes through the dust collecting hopper 2, and a tray 10 is installed on the top; a three-claw cylinder 11 is provided in the center of the tray 10, and a clamping piece 12 is fixed around the three-claw cylinder 11.

[0020] Specifically, the three-claw cylinder 11 is used to fix the inside of the coated sand casting, and the locking piece 12 fixes the outer edge of the coated sand casting so that it will not move during the grinding process and affect the grinding effect; wherein the rotating motor 8 rotates by driving the rotating shaft 9, so that the coated sand casting also rotates with the tray 10, so that the coated sand casting can be grinded around.

[0021] According to another embodiment of the utility model, the grinding mechanism 5 further includes a telescopic cylinder 13, a brush wheel 14 and a scraper 15; the telescopic cylinder 13 is fixed to the operating table 1 through a mounting plate, and the output shaft is connected to a slide 16; the bottom of the slide 16 is slidably connected to a slide rail 17, and a positioning plate 18 is installed on the top, and the scraper 15 is fixed in the middle of the positioning plate 18 by a clamping block 19, and brush wheels 14 are provided on both sides of the scraper 15.

[0022] According to another embodiment of the utility model, further comprising: a positioning frame 20 is provided at the front end of the positioning plate 18, a groove is provided in the middle of the positioning frame 20 for the scraper 15 to pass through, and rollers are provided on both sides; a brush wheel 14 is installed on the roller.

[0023] Specifically, the telescopic cylinder 15 can push the slide 16 to move forward and backward, so that the scraper 15 at the front end is close to or away from the coated sand casting. Brush wheels 14 are provided on both sides of the scraper 15 to sweep away the debris that has not been removed after surface grinding.

[0024] According to another embodiment of the utility model, further comprising: an infrared rangefinder 21 is installed on the side of the positioning frame 20 for confirming the distance between the scraper 15 and the casting.

[0025] According to another embodiment of the utility model, further comprising: a sliding block is provided at the bottom of the sliding seat 16 , and the sliding block matches the sliding rail 17 .

[0026] According to another embodiment of the present invention, the retaining member 12 is an L-shaped structure, with a long end fixed on the tray 10 and a short end perpendicular to the tray 10 .

[0027] According to another embodiment of the utility model, the blowing nozzle 6 is further provided with a plurality of groups mounted on a positioning frame 22, and the angle and position of the blowing nozzle 6 can be manually adjusted according to the size and dimensions of the casting, so that the debris generated after surface grinding can be blown off.

[0028] The specific operation process is to place the coated sand casting by rotating the loading plate 4, start the grinding mechanism 5 to close to the surface of the coated sand casting, rotate the coated sand casting for one circle to grind it, and after grinding, the blowing nozzle 6 blows air on the surface, and the excess debris enters the dust collecting box 7 through the dust collecting hopper 2.

[0029] The above description is only illustrative rather than restrictive of the present invention. Those skilled in the art will understand that many modifications, changes or equivalents may be made without departing from the spirit and scope defined by the appended claims, but all will fall within the scope of protection of the present invention.

Claims

1. A deburring device for coated sand castings, characterized in that: The utility model comprises an operating table (1), a dust collecting hopper (2), a negative pressure fan (3), a rotating loading plate (4) and a grinding mechanism (5); the operating table (1) is provided with a dust collecting hopper (2) at the center, the dust collecting hopper (2) is provided with a grinding mechanism (5) on one side and a blowing nozzle (6) on the other side, a rotating loading plate (4) is installed through the middle, the bottom side is connected to the negative pressure fan (3) through a negative pressure pipe, and the other end of the negative pressure fan (3) is connected to a dust collecting box (7); the rotating loading plate (4) comprises a rotating motor (8), a rotating shaft (9), a tray (10), a three-claw cylinder (11) and a clamping piece (12); the rotating motor (8) is installed at the bottom of the operating table (1) and connected to the rotating shaft (9) through an output shaft; the rotating shaft (9) passes through the dust collecting hopper (2) and a tray (10) is installed on the top; a three-claw cylinder (11) is provided at the center of the tray (10), and a clamping piece (12) is fixed around the three-claw cylinder (11).

2. The deburring device for coated sand castings according to claim 1 is characterized in that: The grinding mechanism (5) comprises a telescopic cylinder (13), a brush wheel (14) and a scraper (15); the telescopic cylinder (13) is fixed to the operating table (1) via a mounting plate, and the output shaft is connected to a slide seat (16); the bottom of the slide seat (16) is slidably connected to a slide rail (17), and a positioning plate (18) is installed on the top; the scraper (15) is fixed in the middle of the positioning plate (18) via a clamping block (19), and brush wheels (14) are provided on both sides of the scraper (15).

3. The deburring device for coated sand castings according to claim 2 is characterized in that: A positioning frame (20) is provided at the front end of the positioning plate (18), a groove is provided in the middle of the positioning frame (20) for the scraper (15) to pass through, and rollers are provided on both sides, and a brush wheel (14) is installed on the rollers.

4. The deburring device for coated sand castings according to claim 3 is characterized in that: An infrared rangefinder (21) is installed on the side of the positioning frame (20).

5. The deburring device for coated sand castings according to claim 2, characterized in that: A sliding block is provided at the bottom of the sliding seat (16), and the sliding block matches the sliding rail (17).

6. The deburring device for coated sand castings according to claim 1, characterized in that: The clamping piece (12) is an L-shaped structure, with a long end fixed on the tray (10) and a short end perpendicular to the tray (10).

7. The deburring device for coated sand castings according to claim 1, characterized in that: The blowing nozzles (6) are provided in a plurality of groups and are mounted on a positioning frame (22).

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