A salt core clamping device with dust blowing-off structure

Abstract

A salt core clamping device with a dust blowing structure comprises a mechanical arm, a work frame fixedly connected to the mechanical arm, and a plurality of cylinder clamps equidistantly distributed at the bottom of the work frame, the cylinder clamps comprising a cylinder part and a clamp part located at the bottom of the cylinder part, a connecting rod is fixed at the center of the bottom end of the cylinder part, a pressure plate located in the clamp part is fixed at the bottom end of the connecting rod, a gap for clamping the salt core is reserved between the pressure plate and the bottom of the clamp part, an air pipe connected to an external air pump through a pipeline is arranged inside the work frame, a plurality of air blowing pipes extending outside the work frame are connected to the air pipe, the plurality of air blowing pipes respectively correspond to the positions of the cylinder clamps, and the air outlet end of the air blowing pipe faces the clamp part. The present invention can automatically remove dust from the salt core without manual wiping, which greatly improves the work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of casting equipment, in particular to a salt core clamping device with a dust blowing-off structure. Background Art

[0002] The piston is one of the basic parts of the engine and is the heart of the engine. At present, automobile pistons are developing towards high strength, high wear resistance, high precision, low expansion, lightweight, and structural combination. In the production process, on the one hand, more and more processes need to be completed during the casting of the piston, including inserting steel sheets, inserting wear-resistant rings, placing salt cores, etc.; on the other hand, the demand for lightweight pistons makes the structure of the piston more and more complex, and the requirements for the production process are becoming more and more stringent.

[0003] When casting the piston blank, the salt core needs to be installed on the mold support. Many automated devices have appeared in the prior art for installing the salt core. For example, the Chinese patent with the announcement number CN209272401U discloses a quick-install salt core workbench, including a casting table and a salt core preheating device. A casting mold is installed on the casting table, and an installation groove is provided on the casting table. A slide groove is provided on the side wall of the installation groove. The casting mold is slidably installed in the slide groove. The casting mold includes a mold cover, an opening and closing outer mold and an inner mold. The inner mold is connected to a feeding mechanism. A salt core preheating device is installed on one side of the casting table. It can automatically install the salt core, has strong automation capabilities, is conducive to improving production efficiency, reducing labor burden, and has good safety.

[0004] The Chinese patent with announcement number CN208033575U discloses a salt core heating conveyor, including a driving mechanism, a salt core storage barrel, a conveying mesh belt, a heating furnace and a base, wherein the driving mechanism, the salt core storage barrel, the conveying mesh belt and the heating furnace are installed on the base, and the conveying mesh belt is equidistantly installed with salt core rods. The utility model has a reasonable structural design. On the one hand, the device realizes automatic supply and heating of salt cores. When used in conjunction with a robot, the robot can replace manual placement of salt cores and realize the automation of salt core placement in the piston casting process. On the other hand, the device has a wide range of applications and can be used for the transportation of various disc-shaped objects, with high practicality.

[0005] Before the salt core is heated and installed, it is necessary to wipe the salt core to remove the dust on the salt core. However, in the above two inventions, no corresponding dust removal device is provided, and manual wiping is still required. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a salt core clamping device with a dust blowing-off structure.

[0007] A salt core clamping device with a dust blowing-off structure comprises a mechanical arm, a work frame fixedly connected to the mechanical arm, and a plurality of cylinder jaws equidistantly distributed at the bottom end of the work frame, the cylinder jaw comprising a cylinder part and a jaw part located at the bottom end of the cylinder part, a connecting rod is fixed at the center position of the bottom end of the cylinder part, a pressure plate located in the jaw part is fixed at the bottom end of the connecting rod, a gap for clamping the salt core is reserved between the pressure plate and the bottom of the jaw part, an air circuit pipe connected to an external air pump through a pipeline is arranged inside the work frame, a plurality of air blowing pipes extending outside the work frame are connected to the air circuit pipe, the plurality of air blowing pipes respectively correspond to the positions of the cylinder jaws, and the air outlet ends of the air blowing pipes face the jaw part.

[0008] By adopting the above technical solution, the working frame is first moved by the mechanical arm to move the cylinder clamp to the salt core position, the salt core is clamped by the cylinder clamp, and then the salt core is moved to the designated installation position by the mechanical arm. In the process of moving the salt core to the designated installation position, the air pipe is supplied with air by an external air pump at the same time, and the gas is blown out from the air outlet end of the blowing pipe through the air pipe, thereby blowing off the dust on the salt core. The present invention can automatically remove dust from the salt core without manual wiping, which greatly improves work efficiency.

[0009] The present invention is further configured as follows: a plurality of the air blowing pipes are each provided with a control valve.

[0010] By adopting the above technical solution, independent blowing of each blowing pipe is achieved, so that when a cylinder clamp does not grab the salt core, the blowing pipe corresponding to the cylinder clamp is still blowing.

[0011] The present invention is further configured as follows: a dust cover is fixed to the side of the bottom end surface of the working frame facing away from the air blowing pipe, an air inlet corresponding to the position of the clamping claw part is provided on the side of the dust cover close to the clamping claw part, a vacuum cleaner is fixed to the outer wall of the working frame, and the vacuum cleaner is connected to the air inlet through a pipe.

[0012] By adopting the above technical solution, the vacuum cleaner is started while the air pipe is blowing air, and the dust is sucked into the vacuum cleaner through the pipeline, thereby preventing the dust from entering the air and causing harm to the staff.

[0013] The present invention is further configured as follows: a plurality of rotating holes corresponding to the positions of the cylinder jaws are opened at the bottom end of the working frame, a rotating shaft is fixedly connected to the top end of the cylinder part, the top end of the rotating shaft penetrates into the working frame through the rotating hole, and the rotating shaft is rotatably connected to the hole wall of the rotating hole through a bearing, a motor is arranged in the working frame, and the output shaft of the motor is fixedly connected to the rotating shaft through a coupling.

[0014] By adopting the above technical solution, the motor is also started during the process of moving the salt core to the designated installation position. The output shaft of the motor rotates to drive the rotating shaft fixedly connected thereto to rotate. The rotation of the rotating shaft drives the cylinder clamp to rotate. The rotation of the cylinder clamp drives the salt core to rotate, so that all angles on the salt core can be blown by the air pipe, ensuring that the air pipe can completely blow away the dust on the salt core.

[0015] A further configuration of the present invention is that the motor is further provided with a reducer, and an output end of the reducer is fixedly connected to the rotating shaft.

[0016] By adopting the above technical solution and setting the reducer, the rotating shaft can be rotated slowly and evenly, so that the cylinder clamp can be rotated slowly and evenly.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] A salt core clamping device with a dust blowing-off structure, firstly, a mechanical arm moves a working frame to move a cylinder clamp to the salt core position, the cylinder clamp grabs the salt core, and then the mechanical arm moves the salt core to a designated installation position. In the process of moving the salt core to the designated installation position, an external air pump is used to supply air to the air pipe, and the gas is blown out from the air outlet end of the air blowing pipe through the air pipe, thereby blowing off the dust on the salt core. The present invention can automatically remove dust from the salt core without manual wiping, which greatly improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a salt core clamping device with a dust blowing-off structure of the present invention;

[0020] Figure 2 The present invention is a cross-sectional view of a salt core clamping device with a dust blowing-off structure.

[0021] Figure numerals: 1. Robotic arm; 2. Work frame; 3. Cylinder clamp; 4. Cylinder part; 5. Clamp part; 6. Connecting rod; 7. Pressure plate; 8. Air pipe; 9. Air blow pipe; 10. Control valve; 11. Dust cover; 12. Air inlet; 13. Vacuum cleaner; 14. Rotating shaft; 15. Motor; 16. Reducer. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] A salt core clamping device with a dust blowing structure, such as Figure 1 and Figure 2 As shown, it includes a mechanical arm 1, a work frame 2 fixedly connected to the mechanical arm 1, and a plurality of cylinder clamps 3 equidistantly distributed at the bottom of the work frame 2. The bottom of the work frame 2 is provided with a plurality of rotating holes corresponding to the positions of the cylinder clamps 3. The cylinder clamps 3 include a cylinder part 4 and a clamping part 5 located at the bottom of the cylinder part 4. The top of the cylinder part 4 is fixedly connected with a rotating shaft 14. The top of the rotating shaft 14 penetrates into the work frame 2 through the rotating hole, and the rotating shaft 14 is rotatably connected to the hole wall of the rotating hole through a bearing. A motor 15 is arranged in the work frame 2. The motor 15 is connected with a reducer 16. The connection between the reducer 16 and the motor 15 is a mature prior art and will not be described in detail here. The output end of 16 is fixedly connected to the rotating shaft 14 through a coupling, a connecting rod 6 is fixed at the center position of the bottom end of the cylinder part 4, and a pressure plate 7 located in the clamping jaw part 5 is fixed to the bottom end of the connecting rod 6. A gap for clamping the salt core is reserved between the pressure plate 7 and the bottom of the clamping jaw part 5, and an air circuit pipe 8 connected to an external air pump through a pipeline is arranged inside the working frame 2. A plurality of air blowing pipes 9 extending to the outside of the working frame 2 are connected to the air circuit pipe 8, and the plurality of air blowing pipes 9 respectively correspond to the positions of each cylinder clamping jaw 3, and the air outlet end of the air blowing pipe 9 faces the clamping jaw part 5. Control valves 10 are arranged on the plurality of air blowing pipes 9, and the control valve 10 is a mature prior art and is not described in detail here.

[0024] A dust cover 11 is fixed to the side of the bottom end face of the working frame 2 facing away from the blowing pipe 9, and an air inlet 12 corresponding to the position of the clamping part 5 is opened on the side of the dust cover 11 close to the clamping part 5. A vacuum cleaner 13 is also fixed to the outer wall of the working frame 2, and the vacuum cleaner 13 is connected to the air inlet 12 through a pipe.

[0025] Working principle: first move the work frame 2 through the mechanical arm 1, thereby moving the cylinder clamp 3 to the salt core position, clamp the salt core through the cylinder clamp 3, and then move the salt core to the designated installation position through the mechanical arm 1. In the process of moving the salt core to the designated installation position, open the control valve 10, and the external air pump supplies air to the air pipe 8. The gas is blown out from the outlet end of the air pipe 9 through the air pipe 8, and the vacuum cleaner 13 and the motor 15 are started at the same time. The vacuum cleaner 13 sucks dust into the vacuum cleaner 13 through the pipeline to prevent dust from entering the air and causing harm to the staff. The output shaft of the motor 15 rotates slowly and uniformly through the reducer 16 and drives the rotating shaft 14 fixedly connected thereto to rotate. The rotation of the rotating shaft 14 drives the cylinder clamp 3 to rotate, and the rotation of the cylinder clamp 3 drives the salt core to rotate, so that all angles on the salt core can be blown by the air pipe 9, ensuring that the air pipe 9 can completely blow away the dust on the salt core. When the salt core moves to the designated installation position, the cylinder clamp 3 is released, and the working frame 2 is moved downward by the mechanical arm 1 to drive the pressure plate 7 to press down on the salt core, and finally the installation of the salt core is completed. It is worth noting that in the process of the movement of the mechanical arm 1, whether it is clamping the salt core or installing the salt core, only one side of the working frame 2 where the cylinder clamp 3 and the pressure plate 7 are installed is always kept corresponding to the clamping position and the installation position, that is, the setting of the dust cover 11, which will not affect the clamping of the cylinder clamp 3 and the downward pressure of the pressure plate 7.

[0026] The invention can automatically remove dust from the salt core without manual wiping, thus greatly improving the work efficiency.

[0027] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships 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 position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A salt core clamping device with a dust blowing-off structure, characterized in that: The invention comprises a mechanical arm (1), a working frame (2) fixedly connected to the mechanical arm (1), and a plurality of cylinder clamps (3) equidistantly distributed at the bottom end of the working frame (2); the cylinder clamp (3) comprises a cylinder part (4) and a clamp part (5) located at the bottom end of the cylinder part (4); a connecting rod (6) is fixed at the center position of the bottom end of the cylinder part (4); a pressure plate (7) located in the clamp part (5) is fixed at the bottom end of the connecting rod (6); a gap for clamping the salt core is reserved between the pressure plate (7) and the bottom of the clamp part (5); an air pipe (8) connected to an external air pump through a pipeline is arranged inside the working frame (2); a plurality of air blowing pipes (9) extending outward from the working frame (2) are connected to the air pipe (8); the plurality of air blowing pipes (9) respectively correspond to the positions of the cylinder clamps (3), and the air outlet end of the air blowing pipe (9) faces the working frame (2); Towards the clamping jaw part (5), a dust cover (11) is fixed on the side of the bottom end surface of the working frame (2) away from the blowing pipe (9), and an air inlet (12) corresponding to the position of the clamping jaw part (5) is provided on the side of the dust cover (11) close to the clamping jaw part (5). A dust collector (13) is fixed on the outer wall of the working frame (2), and the dust collector (13) is connected to the air inlet (12) through a pipeline. A plurality of rotating holes corresponding to the positions of the cylinder clamping jaws (3) are provided at the bottom end of the working frame (2), and a rotating shaft (14) is fixedly connected to the top end of the cylinder part (4), and the top end of the rotating shaft (14) penetrates into the working frame (2) through the rotating hole, and the rotating shaft (14) is rotatably connected to the hole wall of the rotating hole through a bearing. A motor (15) is arranged in the working frame (2), and the output shaft of the motor (15) is fixedly connected to the rotating shaft (14) through a coupling.

2. The salt core clamping device with a dust blowing-off structure according to claim 1 is characterized in that: A control valve (10) is provided on each of the plurality of air blowing pipes (9).

3. The salt core clamping device with a dust blowing-off structure according to claim 1 is characterized in that: The motor (15) is also provided with a reducer (16), and the output end of the reducer (16) is fixedly connected to the rotating shaft (14).

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