Cutting device special for casting head of precision casting part

Abstract

The utility model discloses a special cutting device for a casting head of a precision casting part, which comprises a base, a lifting frame arranged on the upper surface of the base, a cutting platform and a cutting assembly, a first electric telescopic rod is arranged on the upper surface of the lifting frame, and a mounting frame is arranged at the movable end of the first electric telescopic rod. The cutting platform is located on one side of the lifting frame, a clamp is installed on the upper surface of the cutting platform, the cutting assembly comprises a motor, a rotating shaft, a cutting wheel and a grinding mechanism, the motor is arranged on the upper surface of the mounting frame, and the rotating shaft is arranged on the lower surface of the mounting frame and penetrates through the mounting frame to be connected with an output shaft of the motor; the cutting wheel is installed on the outer side of the lower end of the rotating shaft by forming a center hole and is fixed through a limiting piece and a nut, the polishing mechanism is installed on the lower portion of the rotating shaft, and the cutting device has the advantages that the procedure that after cutting is completed, a cutting part needs to be polished is effectively reduced, and working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field related to casting equipment, in particular to a special cutting device for pouring and rising openings of precision castings. Background Art

[0002] In casting production, the removal of casting risers is a labor-intensive process with a relatively low degree of mechanization. Riser is a supplementary part attached to the top or side of the casting only to avoid defects in the casting. Its function is in the casting mold. The cavity of the riser is a cavity for storing liquid metal. It supplies metal when the casting is formed, and has the function of preventing shrinkage cavities, shrinkage, exhaust and slag collection. The main function of the riser is to compensate for shrinkage. The design function of the riser is different. The form, size and opening position of the riser are all different. After the casting is processed and formed, there will be extra risers left, and this part of the riser needs to be cut off for subsequent processing.

[0003] The existing special riser cutting device has the following shortcomings when in use: the casting is fixed by a clamp, the cutting wheel is driven to rotate by a motor, and the motor and the cutting wheel are driven by a moving component to move synchronously toward the riser direction to achieve cutting. After the cutting is completed, the cutting wheel is reset, and the grinding component needs to be controlled to execute the above steps to grind the cut part, which seriously affects the work efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a special cutting device for pouring and rising openings of precision castings to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a special cutting device for pouring and riser of precision castings, comprising a base, a lifting frame arranged on the upper surface of the base, a cutting platform, and a cutting assembly, wherein a first electric telescopic rod is arranged on the upper surface of the lifting frame, and a mounting frame is arranged on the movable end of the first electric telescopic rod, the cutting platform is located on one side of the lifting frame, and a clamp is installed on the upper surface of the cutting platform, the cutting assembly comprises a motor, a rotating shaft, a cutting wheel and a grinding mechanism, the motor is arranged on the upper surface of the mounting frame, the rotating shaft is arranged on the lower surface of the mounting frame, and passes through the mounting frame and is connected with the output shaft of the motor, the cutting wheel is installed on the outer side of the lower end of the rotating shaft by opening a center hole, and is fixed by a limit piece and a nut, and the grinding mechanism is installed on the lower part of the rotating shaft and is connected to the cutting wheel.

[0006] Preferably, the grinding mechanism includes a fixed plate, a movable plate and a plurality of grinding blocks, the fixed plate and the movable plate are arranged on the lower outer side of the rotating shaft from top to bottom in sequence, and the fixed plate is fixedly connected to the rotating shaft, a second electric telescopic rod is installed on the upper surface of the fixed plate, the output shaft of the second electric telescopic rod passes through the fixed plate and is fixedly connected to the upper surface of the movable plate, and a plurality of grinding blocks are evenly distributed on the lower surface of the movable plate.

[0007] Preferably, the grinding mechanism further comprises a plurality of through holes uniformly distributed along the circumferential direction on the cutting wheel, the plurality of grinding blocks correspond to the plurality of through holes one by one, and the lower ends of the grinding blocks are located in the through holes.

[0008] Preferably, a compression spring is installed on the outer side of the lower part of the rotating shaft, and two ends of the compression spring are respectively in contact with the upper surface of the limiting member and the lower surface of the movable plate.

[0009] Preferably, the clamp is detachably connected to the cutting platform via bolts.

[0010] Preferably, the lifting frame as a whole is composed of a sleeve, a movable rod and a mounting plate arranged at the upper end of the movable rod, and the lower end of the movable rod is placed in the sleeve and connected by bolts.

[0011] Compared with the prior art, the beneficial effect of the utility model is as follows: by installing a grinding mechanism at the lower part of the rotating shaft of the cutting assembly, a plurality of through holes are opened on the cutting wheel, and a plurality of grinding blocks of the grinding mechanism are matched one by one with the plurality of through holes, and under the cooperation of the first electric telescopic rod and the motor, the cutting wheel is driven to rotate and make a linear motion toward the direction of the riser to complete the cutting of the riser, and after the cutting is completed, the second electric telescopic rod is operated to make the grinding block move downward until its lower surface is flush with the lower surface of the cutting wheel, and when the first electric telescopic rod subsequently drives the cutting wheel to reset horizontally, the grinding block quickly grinds the cut part, effectively reducing the process of grinding the cut part after the cutting is completed, and greatly improving the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a structural schematic diagram of the cutting assembly of the utility model;

[0014] Figure 3 For the utility model Figure 2 Magnified view at A in the middle;

[0015] Figure 4 It is a top view of the cutting wheel of the present utility model.

[0016] In the figure: 1. base; 2. lifting frame; 3. cutting platform; 4. cutting assembly; 5. first electric telescopic rod; 6. mounting frame; 7. clamp; 8. motor; 9. rotating shaft; 10. cutting wheel; 11. limiter; 12. nut; 13. fixed plate; 14. movable plate; 15. grinding block; 16. second electric telescopic rod; 17. perforation; 18. compression spring. DETAILED DESCRIPTION

[0017] 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.

[0018] See also Figure 1-4 The utility model provides a technical solution: a special cutting device for pouring and rising heads of precision castings, comprising a base 1, a lifting frame 2 arranged on the upper surface of the base 1, a cutting platform 3, and a cutting assembly 4. The lifting frame 2 as a whole is composed of a sleeve, a movable rod, and a mounting plate arranged on the upper end of the movable rod. The lower end of the movable rod is placed in the sleeve and connected by bolts. According to the size of the casting, the height of the lifting frame 2 as a whole is adjusted, and then the height of the cutting assembly 4 is adjusted so that it can quickly align with the rising head cutting position. A first electric telescopic rod 5 is arranged on the upper surface of the lifting frame 2, and a mounting frame 6 is arranged on the movable end of the first electric telescopic rod 5. The cutting platform 3 is located at the upper surface of the lifting frame 2. On one side, a clamp 7 is installed on the upper surface of the cutting platform 3, and the clamp 7 is detachably connected to the cutting platform 3 by bolts, which is convenient for installing different clamps 7 according to the shape structure of the casting, thereby improving the overall applicability of the device. The cutting assembly 4 includes a motor 8, a rotating shaft 9, a cutting wheel 10 and a grinding mechanism. The motor 8 is arranged on the upper surface of the mounting frame 6, and the rotating shaft 9 is arranged on the lower surface of the mounting frame 6, and passes through the mounting frame 6 and is connected with the output shaft of the motor 8. The cutting wheel 10 is installed on the outer side of the lower end of the rotating shaft 9 by opening a center hole, and is fixed by a limiter 11 and a nut 12. The grinding mechanism is installed at the lower part of the rotating shaft 9 and is connected to the cutting wheel 10.

[0019] The grinding mechanism includes a fixed plate 13, a movable plate 14 and a plurality of grinding blocks 15, wherein the fixed plate 13 and the movable plate 14 are sequentially arranged on the lower outer side of the rotating shaft 9 from top to bottom, and the fixed plate 13 is fixedly connected to the rotating shaft 9, and a second electric telescopic rod 16 is installed on the upper surface of the fixed plate 13, and the output shaft of the second electric telescopic rod 16 passes through the fixed plate 13 and is fixedly connected to the upper surface of the movable plate 14, and a plurality of the grinding blocks 15 are evenly distributed on the lower surface of the movable plate 14. The grinding mechanism also includes a plurality of through holes 17 uniformly distributed along the circumferential direction on the cutting wheel 10, and the plurality of grinding blocks 15 correspond to the plurality of through holes 17 one by one, and the lower ends of the grinding blocks 15 are in the through holes 17. When the second electric telescopic rod 16 is extended, the movable plate 14 and the beating module 15 on the lower surface are driven to move downward synchronously until the lower surface of the beating module 15 is flush with the lower surface of the cutting wheel 10. At this time, when the cutting wheel 10 is rotating, the rotation of the beating module 15 realizes rapid grinding of the cutting position, thereby improving production efficiency.

[0020] A compression spring 18 is installed on the outer side of the lower part of the rotating shaft 9. The two ends of the compression spring 18 are respectively in contact with the upper surface of the limit member 11 and the lower surface of the movable plate 14, and work together with the second electric telescopic rod 16 to achieve rapid adjustment of the position of the movable plate 14.

[0021] Specifically, when using the utility model, different clamps 7 are placed on the cutting platform 3 according to the shape structure of the casting, and are connected and fixed by bolts. At the same time, according to the height of the riser, the height of the cutting assembly 4 is adjusted by adjusting the lifting frame, the casting is fixed by the clamp 7, and the motor 8 is started. The cutting wheel 10 is driven to rotate by the motor 8. At this time, the first electric telescopic rod 5 is controlled to extend so that the cutting wheel 10 moves toward the direction of the riser until the cutting of the riser is completed. Subsequently, the second electric telescopic rod 16 is controlled to extend to drive the movable plate 14 of the grinding mechanism and several grinding blocks 15 on the lower surface of the movable plate 14 to move downward synchronously until the lower surface of the grinding block 15 is flush with the lower surface of the cutting wheel 10. At this time, the first electric telescopic rod 5 is controlled to retract, driving the cutting wheel 10 and the grinding mechanism to reset horizontally. In this process, the motor 8 drives the cutting wheel 10 and the grinding block 15 to rotate synchronously through the rotating shaft 9, and then the riser cutting position is quickly polished through the lower surface of the grinding block 15.

Claims

1. A special cutting device for pouring and riser of precision castings, characterized in that: The invention comprises a base (1), a lifting frame (2) arranged on the upper surface of the base (1), a cutting platform (3), and a cutting assembly (4); a first electric telescopic rod (5) is arranged on the upper surface of the lifting frame (2); a mounting frame (6) is arranged on the movable end of the first electric telescopic rod (5); the cutting platform (3) is located on one side of the lifting frame (2); a clamp (7) is installed on the upper surface of the cutting platform (3); the cutting assembly (4) comprises a motor (8), a rotating shaft (9), a cutting wheel (10), and a grinding mechanism; the motor (8) is arranged on the upper surface of the mounting frame (6); the rotating shaft (9) is arranged on the lower surface of the mounting frame (6), passes through the mounting frame (6), and is connected to the output shaft of the motor (8); the cutting wheel (10) is installed on the outer side of the lower end of the rotating shaft (9) by opening a center hole, and is fixed by a stopper (11) and a nut (12); the grinding mechanism is installed at the lower part of the rotating shaft (9) and is connected to the cutting wheel (10).

2. The device for cutting the pouring and riser of precision castings according to claim 1, characterized in that: The grinding mechanism comprises a fixed plate (13), a movable plate (14) and a plurality of grinding blocks (15); the fixed plate (13) and the movable plate (14) are arranged on the outer side of the lower part of the rotating shaft (9) in sequence from top to bottom, and the fixed plate (13) is fixedly connected to the rotating shaft (9); a second electric telescopic rod (16) is installed on the upper surface of the fixed plate (13); an output shaft of the second electric telescopic rod (16) passes through the fixed plate (13) and is fixedly connected to the upper surface of the movable plate (14); and a plurality of the grinding blocks (15) are evenly distributed on the lower surface of the movable plate (14).

3. The device for cutting the pouring and riser of precision castings according to claim 2, characterized in that: The grinding mechanism further comprises a plurality of through holes (17) uniformly distributed along the circumferential direction on the cutting wheel (10), the plurality of grinding blocks (15) corresponding to the plurality of through holes (17) one by one, and the lower ends of the grinding blocks (15) are located in the through holes (17).

4. The device for cutting the pouring and riser of precision castings according to claim 1, characterized in that: A compression spring (18) is installed on the outer side of the lower part of the rotating shaft (9), and two ends of the compression spring (18) are respectively in contact with the upper surface of the limiting member (11) and the lower surface of the movable plate (14).

5. The device for cutting the pouring and riser of precision castings according to claim 1, characterized in that: The clamp (7) is detachably connected to the cutting platform (3) via bolts.

6. The device for cutting the pouring and riser of precision castings according to claim 1, characterized in that: The lifting frame (2) is composed of a sleeve, a movable rod and a mounting plate arranged at the upper end of the movable rod; the lower end of the movable rod is placed in the sleeve and connected by bolts.

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