Nodular iron piston pin hole slag inclusion loosening tool

Abstract

The utility model discloses a nodular iron piston pin hole slag inclusion loosening tool which comprises a bearing table, a nodular iron piston with slag inclusion to be loosened is fixed to the surface of the bearing table through a positioning assembly, and milling cutters are arranged on the two sides of a nodular iron piston pin hole. Wherein a fine adjustment assembly used for adjusting the direction of the ductile iron piston and enabling the pin hole to be aligned with the milling cutter is arranged in the bearing table, and the milling cutter gets close to or away from the ductile iron piston through the distance adjustment assembly to loosen included slag in the pin hole. A worm is meshed with a turbine to drive the turbine to rotate, so that a rotating shaft drives a rotating plate to rotate, the angle of a ductile iron piston is adjusted, pin holes in the two sides of the ductile iron piston correspond to milling cutters correspondingly, a second telescopic air cylinder pushes a supporting plate, the milling cutters move towards the ductile iron piston, and therefore included slag in the pin holes is loosened; and the milling cutter can be adjusted according to the position of the actual included slag in the pin hole without marking, so that the working complexity is reduced, and the overall working efficiency is improved.

Description

Technical Field

[0001] This utility model specifically relates to a tooling for loosening slag inclusions in ductile iron piston pin holes. Background Technology

[0002] Ductile iron pistons are pistons made of ductile iron and are widely used in internal combustion engines. The manufacturing process of ductile iron pistons includes casting and heat treatment. Sand casting is typically used in the casting process, resulting in high dimensional accuracy, excellent performance, and low cost. The heat treatment process has a significant impact on the piston's performance and lifespan.

[0003] However, after casting, ductile iron pistons may have inclusions inside the pin hole or in shallow areas on the surface that affect the piston's mechanical properties and service life. Currently, when removing inclusions, it is necessary to mark the inclusion area in advance and then carry out the removal work. This involves multiple tasks, is quite cumbersome, and affects work efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a tooling for loosening slag inclusions in ductile iron piston pin holes, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a tooling for loosening slag in a ductile iron piston pin hole, comprising a support platform, wherein the ductile iron piston to be loosened is fixed on the surface of the support platform by a positioning component, and milling cutters are provided on both sides of the ductile iron piston pin hole.

[0006] The support platform is equipped with a fine-tuning component for adjusting the direction of the ductile iron piston so that the pin hole is aligned with the milling cutter. The milling cutter moves closer to or further away from the ductile iron piston through the distance adjustment component to loosen the slag inclusions in the pin hole.

[0007] Preferably, the device further includes a worktable and a movable base. The movable base is mounted on the worktable via a first drive assembly. The first drive assembly includes a first slide rail mounted on the upper surface of the worktable, a first slider mounted on the first slide rail, and the first slider mounted on the lower surface of the movable base. The worktable is also provided with a first telescopic cylinder, the power output end of which is connected to the movable base.

[0008] Preferably, the distance adjustment assembly includes a horizontal adjustment unit and a vertical adjustment unit. The horizontal adjustment unit includes a second slide rail disposed on the upper surface of the movable base and located on both sides of the support platform. A second slider is disposed on the second slide rail, and a support plate is disposed on the upper surface of the second slider. A second telescopic cylinder is also disposed on the upper surface of the movable base, and the power output end of the second telescopic cylinder is connected to the support plate.

[0009] Preferably, the vertical adjustment unit includes a vertical plate disposed on the support plate, a third slide rail disposed on the side of the vertical plate facing the support platform, a third slider disposed on the third slide rail, a lifting plate disposed on the outside of the third slider, a third telescopic cylinder disposed on the vertical plate, and the power output end of the third telescopic cylinder being connected to the lifting plate.

[0010] Preferably, a motor is provided on the outside of the lifting plate, and the power output end of the motor is connected to the milling cutter.

[0011] Preferably, the positioning component includes a fixed bracket disposed on the movable base, the fixed bracket extending toward the support platform to a protruding plate, a fourth telescopic cylinder disposed on the protruding plate, and a pressure plate connected to the power output end of the fourth telescopic cylinder.

[0012] Preferably, the fine-tuning component includes a turbine disposed within the support platform and a worm gear adapted to the turbine. The worm gear extends to the outside of the support platform and is connected to a handle. A rotating shaft is inserted into the turbine, and the rotating shaft extends to the outside of the support platform and is connected to a rotating plate.

[0013] The technical effects and advantages of this utility model are as follows: This tooling for loosening slag inclusions in ductile iron piston pin holes involves activating the first telescopic cylinder. The power output of the first telescopic cylinder pushes the moving base, which moves along the first slide rail via the first slider. This moves the support platform vertically below the pressure plate and simultaneously between the two milling cutters, placing the ductile iron piston to be loosened onto the rotating plate surface. Activating the fourth telescopic cylinder then drives the pressure plate to descend, bringing it into contact with the ductile iron piston and fixing it in place. Turning the handle rotates the worm gear. The worm gear meshes with the turbine, driving the turbine to rotate, which in turn causes the rotating shaft to rotate the rotating plate. This adjusts the angle of the ductile iron piston, aligning the pin holes on both sides of the piston with the milling cutter. The third telescopic cylinder pushes the lifting plate, bringing the milling cutter and the pin hole to the same horizontal line. The second telescopic cylinder pushes the support plate, moving the milling cutter toward the ductile iron piston, thus loosening the slag inclusions in the pin hole. No marking is required; the milling cutter can be adjusted according to the actual position of the slag inclusions in the pin hole, reducing work complexity and improving overall work efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the pressure plate of this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the motor of this utility model;

[0017] Figure 4This is a schematic diagram of the structure of the second slide rail of this utility model;

[0018] Figure 5 This is a schematic diagram of the turbine structure of this utility model.

[0019] In the diagram: 1. Support platform; 2. Milling cutter; 3. Worktable; 4. Movable base; 5. First slide rail; 6. First slider; 7. First telescopic cylinder; 8. Second slide rail; 9. Second slider; 10. Support plate; 11. Second telescopic cylinder; 12. Vertical plate; 13. Third slide rail; 14. Third slider; 15. Lifting plate; 16. Third telescopic cylinder; 17. Motor; 18. Fixed bracket; 19. Protruding plate; 20. Fourth telescopic cylinder; 21. Pressure plate; 22. Turbine; 23. Worm gear; 24. Handle; 25. Rotating shaft; 26. Rotating plate. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] To ensure that the pin hole and milling cutter 2 are on the same horizontal line, refer to... Figure 1 , Figure 2 and Figure 3 As shown, the system includes a support platform 1. A ductile iron piston with inclusions to be loosened is fixed to the surface of the support platform 1 via a positioning assembly. Milling cutters 2 are positioned on both sides of the piston pin hole. The support platform 1 contains a fine-tuning assembly for adjusting the direction of the piston, aligning the pin hole with the milling cutters 2. The milling cutters 2 move closer to or further away from the piston via a distance adjustment assembly, loosening the inclusions in the pin hole. The first telescopic cylinder 7 is activated, its power output pushing the movable base 4, which moves along the first slide rail 5 via the first slider 6, moving the support platform 1 vertically below the pressure plate 21 and simultaneously between the two milling cutters 2. The piston with inclusions to be loosened is placed on the surface of the rotating plate 26. The fourth telescopic cylinder 20 is then activated. The fourth telescopic cylinder 20 drives the pressure plate 21 to descend, bringing it into contact with the ductile iron piston and fixing it in place. Turning the handle 24 rotates the worm gear 23, which meshes with the turbine 22, causing the rotating shaft 25 to rotate the rotating plate 26. This adjusts the angle of the ductile iron piston, aligning the pin holes on both sides with the milling cutter 2. The third telescopic cylinder 16 pushes the lifting plate 15, bringing the milling cutter 2 and the pin holes to the same horizontal plane. The second telescopic cylinder 11 pushes the support plate 10, moving the milling cutter 2 toward the ductile iron piston, thus loosening the slag inclusions in the pin holes. No marking is required; the milling cutter 2 can be adjusted according to the actual position of the slag inclusions in the pin holes.

[0022] To align the pin hole with milling cutter 2, refer to... Figure 1, Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, it also includes a worktable 3 and a movable base 4. The movable base 4 is mounted on the worktable 3 via a first driving assembly. The first driving assembly includes a first slide rail 5 mounted on the upper surface of the worktable 3, and a first slider 6 mounted on the first slide rail 5. The first slider 6 is mounted on the lower surface of the movable base 4. The worktable 3 is also equipped with a first telescopic cylinder 7. The power output end of the first telescopic cylinder 7 is connected to the movable base 4. As the power output end of the first telescopic cylinder 7 drives the movable base 4, the first slider 6 slides along the length direction of the first slide rail 5, thereby moving the movable base 4. The support platform 1 can be moved to a position directly below the pressure plate 21 to facilitate the subsequent fixation of the support platform 1. The distance adjustment assembly includes a horizontal adjustment unit and a vertical adjustment unit. The horizontal adjustment unit includes a second slide rail 8 disposed on the upper surface of the movable base 4 and located on both sides of the support platform 1. A second slider 9 is disposed on the second slide rail 8, and a support plate 10 is disposed on the upper surface of the second slider 9. A second telescopic cylinder 11 is also disposed on the upper surface of the movable base 4. The power output end of the second telescopic cylinder 11 is connected to the support plate 10. The horizontal adjustment is configured in two sets and is symmetrically arranged. By pushing the support with the second telescopic cylinder 11, the second slider 9 slides along the length direction of the second slide rail 8, thereby controlling the axial feed of the milling cutter 2 in the pin hole. It can be adjusted according to the specific position of the slag in the pin hole, improving convenience. The vertical adjustment unit includes a vertical plate 12 mounted on a support plate 10. A third slide rail 13 is mounted on the side of the vertical plate 12 facing the support platform 1. A third slider 14 is mounted on the third slide rail 13. A lifting plate 15 is mounted on the outer side of the third slider 14. A third telescopic cylinder 16 is mounted on the vertical plate 12. The power output end of the third telescopic cylinder 16 is connected to the lifting plate 15. As the power output end of the third telescopic cylinder 16 drives the lifting plate 15, the third slider 14 slides along the length of the third slide rail 13, adjusting the height of the milling cutter 2. This allows the milling cutter 2 to rise and fall within the pin hole, loosening inclusions in different locations and further improving practicality. A motor 17 is mounted on the outer side of the lifting plate 15. The power output end of the motor 17 is connected to the milling cutter 2. The motor 17 drives the milling cutter 2 to rotate, achieving the effect of loosening inclusions. The positioning component includes a fixed bracket 18 mounted on the movable base 4. The fixed bracket 18 extends toward the support platform 1 to a protruding plate 19. A fourth telescopic cylinder 20 is mounted on the protruding plate 19. The power output end of the fourth telescopic cylinder 20 is connected to a pressure plate 21. The pressure plate 21 is driven to descend by the fourth telescopic cylinder 20, so that the pressure plate 21 abuts against the upper surface of the ductile iron piston, thereby fixing the ductile iron piston. A bearing seat is provided at the connection between the pressure plate 21 and the fourth telescopic cylinder 20. Therefore, the pressure plate 21 can rotate under the fixation of the pressure plate 21 without affecting the subsequent angle adjustment of the ductile iron piston.The fine-tuning assembly includes a turbine 22 disposed within the support platform 1 and a worm gear 23 adapted to the turbine 22. The worm gear 23 extends to the outside of the support platform 1 and is connected to a handle 24. A rotating shaft 25 is inserted into the turbine 22. The rotating shaft 25 extends to the outside of the support platform 1 and is connected to a rotating plate 26. When the pin hole does not correspond to the milling cutter 2, the rotation of the worm gear 23 drives the turbine 22 and the rotating shaft 25 to rotate, causing the rotating plate 26 to drive the fixed ductile iron piston to rotate, so that the pin hole corresponds to the milling cutter 2, which facilitates subsequent loosening.

[0023] In use, firstly, activate the first telescopic cylinder 7. The power output end of the first telescopic cylinder 7 pushes the movable base 4, which moves along the first slide rail 5 via the first slider 6, causing the bearing platform 1 to move vertically below the pressure plate 21 and simultaneously between the two milling cutters 2. Place the ductile iron piston, which needs to be loosened of slag inclusions, on the surface of the rotating plate 26. Then, activate the fourth telescopic cylinder 20. The power output end of the fourth telescopic cylinder 20 drives the pressure plate 21 to descend, causing the pressure plate 21 to abut against the ductile iron piston and fix the piston in place. Then, rotate the handle... Hand 24 drives the worm gear 23 to rotate. The worm gear 23 meshes with the turbine 22, causing the turbine 22 to rotate. This causes the rotating shaft 25 to drive the rotating plate 26 to rotate, adjusting the angle of the ductile iron piston so that the pin holes on both sides of the ductile iron piston correspond to the milling cutter 2. The third telescopic cylinder 16 pushes the lifting plate 15 so that the milling cutter 2 and the pin hole are on the same horizontal line. The second telescopic cylinder 11 pushes the support plate 10 so that the milling cutter 2 moves toward the ductile iron piston, thereby loosening the slag inclusions in the pin hole.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model.

Claims

1. A tooling for loosening slag inclusions in ductile iron piston pin holes, characterized in that, Includes a support platform (1), and the ductile iron piston to be loosened is fixed on the surface of the support platform (1) by a positioning component. Milling cutters (2) are provided on both sides of the ductile iron piston pin hole. The bearing platform (1) is equipped with a fine-tuning component for adjusting the direction of the ductile iron piston so that the pin hole is aligned with the milling cutter (2). The milling cutter (2) moves closer to or further away from the ductile iron piston through the distance adjustment component to loosen the slag in the pin hole.

2. The tooling for loosening slag inclusions in ductile iron piston pin holes according to claim 1, characterized in that: It also includes a worktable (3) and a movable base (4). The movable base (4) is mounted on the worktable (3) via a first drive assembly. The first drive assembly includes a first slide rail (5) mounted on the upper surface of the worktable (3). A first slider (6) is mounted on the first slide rail (5). The first slider (6) is mounted on the lower surface of the movable base (4). A first telescopic cylinder (7) is also mounted on the worktable (3). The power output end of the first telescopic cylinder (7) is connected to the movable base (4).

3. The tooling for loosening slag inclusions in ductile iron piston pin holes according to claim 2, characterized in that: The distance adjustment assembly includes a horizontal adjustment unit and a vertical adjustment unit. The horizontal adjustment unit includes a second slide rail (8) disposed on the upper surface of the movable base (4) and located on both sides of the support platform (1). A second slider (9) is disposed on the second slide rail (8). A support plate (10) is disposed on the upper surface of the second slider (9). A second telescopic cylinder (11) is also disposed on the upper surface of the movable base (4). The power output end of the second telescopic cylinder (11) is connected to the support plate (10).

4. The tooling for loosening slag inclusions in ductile iron piston pin holes according to claim 3, characterized in that: The vertical adjustment unit includes a vertical plate (12) disposed on a support plate (10). A third slide rail (13) is disposed on the side of the vertical plate (12) facing the support platform (1). A third slider (14) is disposed on the third slide rail (13). A lifting plate (15) is disposed on the outside of the third slider (14). A third telescopic cylinder (16) is disposed on the vertical plate (12). The power output end of the third telescopic cylinder (16) is connected to the lifting plate (15).

5. The tooling for loosening slag inclusions in ductile iron piston pin holes according to claim 4, characterized in that: A motor (17) is provided on the outside of the lifting plate (15), and the power output end of the motor (17) is connected to the milling cutter (2).

6. The tooling for loosening slag inclusions in ductile iron piston pin holes according to claim 2, characterized in that: The positioning component includes a fixed bracket (18) disposed on the movable base (4), the fixed bracket (18) extending to a protruding plate (19) on the side facing the bearing platform (1), a fourth telescopic cylinder (20) disposed on the protruding plate (19), and a pressure plate (21) connected to the power output end of the fourth telescopic cylinder (20).

7. The tooling for loosening slag inclusions in ductile iron piston pin holes according to claim 1, characterized in that: The fine-tuning component includes a turbine (22) disposed in the support platform (1) and a worm gear (23) adapted to the turbine (22). The worm gear (23) extends to the outside of the support platform (1) and is connected to a handle (24). A rotating shaft (25) is inserted into the turbine (22), and the rotating shaft (25) extends to the outside of the support platform (1) and is connected to a rotating plate (26).

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