Casting inner cavity sand cleaning device

Abstract

The utility model discloses a casting inner cavity sand cleaning device, which belongs to the technical field of casting auxiliary devices and comprises a base, a workbench fixedly connected to the top of the base, a plurality of sand passing holes formed in the workbench and a first lifting assembly arranged at the top of the base, and a pressing plate arranged at the output end of the first lifting assembly and located above the workbench. A vibration assembly is arranged on the pressing plate; a sand collecting box with the top open is placed at the top of the base and located under the sand passing holes, a second lifting assembly is arranged on the base, the output end of the second lifting assembly is fixedly connected with a plurality of air pipes, the air pipes and the sand passing holes are arranged in a one-to-one correspondence mode, and the tops of the air pipes sequentially penetrate through the base and the sand collecting box and stretch into the sand passing holes. A plurality of circular pipes are fixedly connected to the inner bottom wall of the sand collecting box, are in one-to-one correspondence with the air pipes, are arranged outside the air pipes in a sleeving manner and are in sliding contact with the air pipes. The air pipe can be moved to the deep position of the inner cavity, the sand cleaning effect is improved, and meanwhile cleaned sand can be collected.

Description

Technical Field

[0001] The utility model relates to the technical field of casting auxiliary devices, in particular to a sand cleaning device for the inner cavity of a casting. Background Art

[0002] Castings are metal objects obtained by various casting methods. According to actual needs, some castings contain various holes to form the inner cavity of the casting. After the casting is processed, sand will remain in the inner cavity of the casting, so it is necessary to clean the inner cavity of the casting. Vibration sand cleaning and jet sand cleaning are common sand cleaning methods, that is, the casting is placed on a vibration platform, and air is blown into the inner cavity of the casting through an air nozzle. The general air nozzle is fixed. For castings with a deeper inner cavity, it is difficult for the air nozzle to reach the depth of the inner cavity, resulting in poor cleaning effect of the inner cavity, and the cleaned sand is scattered around, making it difficult to collect.

[0003] Therefore, a device for cleaning sand from the inner cavity of a casting is proposed. Utility Model Content

[0004] The utility model aims to provide a device for cleaning sand from the inner cavity of a casting, aiming to solve or improve at least one of the above-mentioned technical problems.

[0005] To achieve the above-mentioned purpose, the utility model provides the following scheme: The utility model provides a casting inner cavity sand cleaning device, comprising a base, a workbench is fixedly connected to the top of the base, a plurality of sand holes are opened on the workbench, a first lifting assembly is arranged on the top of the base, a pressing plate is arranged at the output end of the first lifting assembly, the pressing plate is located above the workbench, and a vibration assembly is arranged on the pressing plate;

[0006] A sand collecting box with an open top is placed on the top of the base, and the sand collecting box is located directly below the plurality of sand passing holes. A second lifting assembly is arranged on the base, and a plurality of air pipes are fixedly connected to the output end of the second lifting assembly, and the plurality of air pipes are arranged in a one-to-one correspondence with the plurality of sand passing holes. The tops of the air pipes sequentially penetrate the base and the sand collecting box and extend into the sand passing holes. A plurality of circular tubes are fixedly connected to the inner bottom wall of the sand collecting box, and the plurality of circular tubes are arranged in a one-to-one correspondence with the plurality of air pipes. The circular tubes are sleeved outside the air pipes and are in sliding contact with the air pipes.

[0007] Preferably, two legs are fixedly connected to the bottom of the base, and the second lifting assembly includes two second cylinders respectively fixedly connected to the two legs, and the output ends of the two second cylinders are fixedly connected to a connecting plate, and the connecting plate is located below the base, and the plurality of air pipes are fixedly connected to the connecting plate.

[0008] Preferably, the first lifting assembly includes a plurality of first cylinders fixedly connected to the top of the base, the plurality of first cylinders are respectively located on both sides of the workbench, the output end of the first cylinder is fixedly connected to a bottom plate, a plurality of shock absorbing assemblies are arranged on the bottom plate, and one end of the shock absorbing assembly away from the bottom plate is connected to the pressure plate.

[0009] Preferably, the shock absorbing assembly comprises a spring shock absorber, and two ends of the spring shock absorber are hinged to the top of the base plate and the bottom of the pressure plate respectively.

[0010] Preferably, the vibration assembly includes a plurality of vibration motors fixedly connected to the top of the pressure plate.

[0011] Preferably, a first baffle is fixedly connected to one side of the top of the workbench, a third cylinder is fixedly connected to the other side of the workbench, a second baffle is fixedly connected to the output end of the third cylinder, the second baffle is arranged opposite to the first baffle, and the first baffle and the second baffle are respectively located on both sides of the plurality of sand passing holes.

[0012] Preferably, a third baffle is fixedly connected to a side of the top of the workbench adjacent to the first baffle.

[0013] Preferably, the top of the circular tube is flush with the top of the sand collecting box.

[0014] The utility model discloses the following technical effects: a casting is placed on a workbench with its inner cavity facing downward and corresponding to a sand-passing hole; a pressure plate is driven down by a first lifting component to press the casting tightly; a vibrating component is used to drive the casting to vibrate; and compressed gas is introduced into an air pipe and blown toward the inner cavity of the casting to clean sand particles in the inner cavity; the air pipe can be driven up by a second lifting component to extend into the deep of the inner cavity to improve the sand cleaning effect; sand and gravel falling from the inner cavity enter a sand collecting box through the sand-passing hole for collection; when the sand particles in the sand collecting box need to be cleaned, the air pipe is driven down by the second lifting component to move out of the sand collecting box, and the sand collecting box can be taken out; and the provision of a round tube can prevent sand particles from leaking from the bottom of the sand collecting box. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0016] Figure 1 It is an axonometric drawing of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the sand hole in the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the sand box in the utility model;

[0019] Figure 4 It is a structural schematic diagram of the connecting plate in the utility model.

[0020] In the figure: 1. base; 2. workbench; 3. sand hole; 4. pressure plate; 5. sand collecting box; 6. air pipe; 7. round pipe; 8. support leg; 9. second cylinder; 10. connecting plate; 11. first cylinder; 12. bottom plate; 13. spring shock absorber; 14. vibration motor; 15. first baffle; 16. third cylinder; 17. second baffle; 18. third baffle. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0023] Reference Figure 1-Figure 4 The utility model provides a casting inner cavity sand cleaning device, comprising a base 1, a workbench 2 is fixedly connected to the top of the base 1, a plurality of sand holes 3 are opened on the workbench 2, a first lifting assembly is arranged on the top of the base 1, a pressing plate 4 is arranged at the output end of the first lifting assembly, the pressing plate 4 is located above the workbench 2, and a vibration assembly is arranged on the pressing plate 4; the sand holes 3 are arranged corresponding to the inner cavity of the casting;

[0024] A sand collecting box 5 with an open top is placed on the top of the base 1. The sand collecting box 5 is located directly below the plurality of sand passing holes 3. A second lifting assembly is provided on the base 1. A plurality of air pipes 6 are fixedly connected to the output end of the second lifting assembly. The plurality of air pipes 6 are arranged one-to-one with the plurality of sand passing holes 3. The tops of the air pipes 6 sequentially penetrate the base 1 and the sand collecting box 5 and extend into the sand passing holes 3. A plurality of round tubes 7 are fixedly connected to the inner bottom wall of the sand collecting box 5. The plurality of round tubes 7 are arranged one-to-one with the plurality of air pipes 6. The round tubes 7 are sleeved outside the air pipes 6 and are in sliding contact with the air pipes 6.

[0025] A plurality of avoidance holes are provided on the base 1, and the air pipe 6 passes through the avoidance holes. The size of the avoidance holes is larger than the size of the air pipe 6, so that the air pipe 6 can pass through.

[0026] Two legs 8 are fixedly connected to the bottom of the base 1. The second lifting assembly includes two second cylinders 9 respectively fixedly connected to the two legs 8. The output ends of the two second cylinders 9 are fixedly connected to a connecting plate 10. The connecting plate 10 is located below the base 1. A plurality of air pipes 6 are fixedly connected to the connecting plate 10.

[0027] The trachea 6 is a hard tube, a hose (not shown) is connected to the bottom of the trachea 6, and an air pump (not shown) is connected to the hose. The air pump is used to ventilate the trachea 6, and the hose facilitates the lifting of the trachea 6;

[0028] The casting is placed on the workbench 2 with the inner cavity facing downward and corresponding to the sand-passing hole 3. The pressure plate 4 is driven down by the first lifting component to press the casting tightly, and the casting is driven to vibrate by the vibration component. At the same time, compressed gas is introduced into the air pipe 6 to blow toward the inner cavity of the casting to clean the sand in the inner cavity. The air pipe 6 can be driven up by the second lifting component to extend into the deep of the inner cavity to improve the sand cleaning effect. The sand and gravel falling from the inner cavity enters the sand collecting box 5 through the sand-passing hole 3 for collection. When the sand in the sand collecting box 5 needs to be cleaned, the air pipe 6 is driven down by the second lifting component to move out of the sand collecting box 5, and the sand collecting box 5 can be taken out. The setting of the circular tube 7 can prevent the sand from leaking from the bottom of the sand collecting box 5.

[0029] A further optimized solution is that the first lifting assembly includes a plurality of first cylinders 11 fixedly connected to the top of the base 1, and the plurality of first cylinders 11 are respectively located on both sides of the workbench 2. The output end of the first cylinder 11 is fixedly connected to a bottom plate 12, and a plurality of shock absorbing assemblies are arranged on the bottom plate 12. The end of the shock absorbing assembly away from the bottom plate 12 is connected to the pressure plate 4.

[0030] The shock absorbing assembly includes a spring shock absorber 13, and the two ends of the spring shock absorber 13 are respectively hinged to the top of the bottom plate 12 and the bottom of the pressure plate 4;

[0031] The vibration assembly includes a plurality of vibration motors 14 fixedly connected to the top of the pressure plate 4;

[0032] The working principle of the spring shock absorber 13 is to utilize the elastic deformation and energy storage and release characteristics of the spring. Through the action of the damping device, the vibration and impact of the system can be effectively reduced, and the stability and working efficiency of the system can be improved (the specifics are prior art and will not be repeated here);

[0033] The vibration of the vibration motor 14 is transmitted to the pressure plate 4, and the pressure plate 4 is pressed against the casting, thereby transmitting the vibration to the casting to achieve vibration sand cleaning of the casting. The spring shock absorber 13 can reduce the vibration of the workbench 2 and the base 1, improve the reliability of the device, and at the same time avoid the workbench 2 and the base 1 below consuming too much vibration energy, so that the vibration energy is more concentrated on the casting, improving the sand cleaning effect.

[0034] Further optimizing the scheme, a first baffle 15 is fixedly connected to one side of the top of the workbench 2, a third cylinder 16 is fixedly connected to the other side of the workbench 2, a second baffle 17 is fixedly connected to the output end of the third cylinder 16, the second baffle 17 is arranged opposite to the first baffle 15, and the first baffle 15 and the second baffle 17 are respectively located on both sides of the plurality of sand holes 3;

[0035] According to a further optimized solution, a third baffle 18 is fixedly connected to one side of the top of the workbench 2 adjacent to the first baffle 15 .

[0036] The two side walls of the casting are placed against the first baffle 15 and the third baffle 18 to facilitate the inner cavity of the casting to correspond to the sand hole 3, and then the second baffle 17 is driven by the third cylinder 16 to move close to the side wall of the casting to reduce the displacement of the casting during vibration.

[0037] According to a further optimized solution, the top of the circular tube 7 is flush with the top of the sand collecting box 5 , so that all the sand in the sand collecting box 5 will not leak out through the circular tube 7 .

[0038] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0039] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A device for cleaning sand from the inner cavity of a casting, characterized in that: The machine comprises a base (1), a workbench (2) is fixedly connected to the top of the base (1), a plurality of sand holes (3) are provided on the workbench (2), a first lifting assembly is provided on the top of the base (1), a pressing plate (4) is provided at the output end of the first lifting assembly, the pressing plate (4) is located above the workbench (2), and a vibration assembly is provided on the pressing plate (4); A sand collecting box (5) with an open top is placed on the top of the base (1). The sand collecting box (5) is located directly below the plurality of sand passing holes (3). A second lifting assembly is arranged on the base (1). A plurality of air pipes (6) are fixedly connected to the output end of the second lifting assembly. The plurality of air pipes (6) are arranged in a one-to-one correspondence with the plurality of sand passing holes (3). The tops of the air pipes (6) pass through the base (1) and the sand collecting box (5) in sequence and extend into the sand passing holes (3). A plurality of circular tubes (7) are fixedly connected to the inner bottom wall of the sand collecting box (5). The plurality of circular tubes (7) are arranged in a one-to-one correspondence with the plurality of air pipes (6). The circular tubes (7) are sleeved outside the air pipes (6) and are in sliding contact with the air pipes (6).

2. The device for cleaning sand from the inner cavity of a casting according to claim 1, characterized in that: Two legs (8) are fixedly connected to the bottom of the base (1); the second lifting assembly comprises two second cylinders (9) respectively fixedly connected to the two legs (8); the output ends of the two second cylinders (9) are fixedly connected to a connecting plate (10); the connecting plate (10) is located below the base (1); and the plurality of air pipes (6) are fixedly connected to the connecting plate (10).

3. The device for cleaning sand from the inner cavity of a casting according to claim 1, characterized in that: The first lifting assembly comprises a plurality of first cylinders (11) fixedly connected to the top of the base (1), the plurality of first cylinders (11) being respectively located on both sides of the workbench (2), the output end of the first cylinder (11) being fixedly connected to a bottom plate (12), a plurality of shock absorbing assemblies being arranged on the bottom plate (12), and an end of the shock absorbing assembly away from the bottom plate (12) being connected to the pressing plate (4).

4. The device for cleaning sand from the inner cavity of a casting according to claim 3, characterized in that: The shock absorbing assembly comprises a spring shock absorber (13), and two ends of the spring shock absorber (13) are respectively hinged to the top of the base plate (12) and the bottom of the pressure plate (4).

5. The device for cleaning sand from the inner cavity of a casting according to claim 1, characterized in that: The vibration assembly comprises a plurality of vibration motors (14) fixedly connected to the top of the pressing plate (4).

6. The device for cleaning sand from the inner cavity of a casting according to claim 1, characterized in that: A first baffle (15) is fixedly connected to one side of the top of the workbench (2), a third cylinder (16) is fixedly connected to the other side of the workbench (2), a second baffle (17) is fixedly connected to the output end of the third cylinder (16), the second baffle (17) is arranged opposite to the first baffle (15), and the first baffle (15) and the second baffle (17) are respectively located on both sides of the plurality of sand holes (3).

7. The device for cleaning sand from the inner cavity of a casting according to claim 6, characterized in that: A third baffle (18) is fixedly connected to one side of the top of the workbench (2) adjacent to the first baffle (15).

8. The device for cleaning sand from the inner cavity of a casting according to claim 1, characterized in that: The top of the circular tube (7) is flush with the top of the sand collecting box (5).

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