Creeper tread casting surface flash cutting die

Abstract

The utility model discloses a track shoe casting surface flash cutting die which comprises an upper die set and a lower die set which can move relatively, the lower die set comprises a lower die base and a positioning core arranged on the lower die base, and a casting to be machined is arranged on the positioning core; the upper die set comprises an upper die base, a cutting tool is arranged on the end face, facing the positioning core, of the upper die base through a tool mounting plate, and the cutting tool is provided with a cutting cavity matched with the outer contour of a casting. A material returning assembly is arranged in the upper die base and comprises a material returning plate and a material returning guide column, the material returning plate can move in the casting direction along the material returning guide column, a material returning component is arranged on the material returning plate facing the casting side, the material returning component penetrates through the cutter mounting plate and extends into the cutting cavity, and a connecting disc is arranged on the material returning plate located on the opposite side of the material returning component. By means of the device, burrs on the surface of a track shoe casting can be accurately cut, the casting is effectively pushed out of the cutting cavity, and the reliability of material returning is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of casting processing technology, and in particular relates to a die for cutting the flash on the surface of track plate castings. Background Technology

[0002] Flash on the surface of track plate castings is a common casting defect. Due to issues with the casting mold and casting process, flash forms on the surface of the casting during the casting process. The formation of flash alters the original dimensions of the casting, causing the track plate dimensions to exceed the design tolerance range, affecting its assembly accuracy with other components, and in severe cases, even preventing normal installation and use. To remove flash, additional processing steps such as grinding and cutting are required. Existing flash cutting equipment has the following drawbacks: 1. Due to the lack of stable positioning during the cutting process, the casting is prone to displacement under the cutting force, failing to provide a precise initial positioning reference and thus affecting cutting accuracy; 2. It cannot accurately cut the flash on the surface of the track plate casting, resulting in significant dimensional deviations after cutting; 3. Unreliable material removal; the casting is easily stuck in the cutting cavity and difficult to remove, and improper material removal may also damage the casting, affecting its integrity and surface quality. Summary of the Invention

[0003] To address the problems existing in the prior art, this utility model provides a die for cutting the flash on the surface of track plate castings. It can accurately cut the flash on the surface of track plate castings. The ejector component extends through the tool mounting plate into the cutting cavity, which can effectively push the casting out of the cutting cavity, ensuring the reliability of ejection and preventing the casting from getting stuck in the cavity and difficult to remove.

[0004] This utility model is implemented as follows: a die for cutting the flash on the surface of a track plate casting includes an upper die assembly and a lower die assembly that can move relative to each other. The lower die assembly includes a lower die base and a positioning core provided on the lower die base. The casting to be processed is placed on the positioning core.

[0005] The upper module includes an upper mold base, and a cutting tool is provided on the end face of the upper mold base facing the positioning core via a tool mounting plate. The cutting tool is provided with a cutting cavity that matches the outer contour of the casting.

[0006] The upper mold base is provided with an ejection assembly for ejecting the casting from the cutting cavity. The ejection assembly includes an ejection plate and an ejection guide post. The ejection plate can move along the ejection guide post toward the casting. An ejection component is provided on the ejection plate facing the casting. The ejection component extends through the tool mounting plate into the cutting cavity. A connecting plate connected to the ejection cylinder is provided on the ejection plate on the opposite side of the ejection component.

[0007] Furthermore, the cutting tool is assembled from at least two cutting components, which form a cutting cavity corresponding to the outer contour of the casting and create a cutting edge for cutting the burrs on the surface of the casting. The split-type tool structure reduces the contact area between the casting and the cutting tool, thereby reducing the friction generated by the overall contact between the tool and the casting, decreasing the resistance to material removal, and facilitating the removal of the casting.

[0008] Furthermore, four ejector guide pillars are provided, each positioned at one of the four corners of the ejector plate. This arrangement provides a very stable guiding effect for the ejector plate. During the ejection process, the ejector plate needs to move along the ejector guide pillars to push the casting out of the cutting cavity. The four ejector guide pillars are evenly distributed around the ejector plate, making the force on the ejector plate more even during movement and preventing the ejector plate from tilting or shaking. This helps ensure that the ejector plate moves smoothly towards the casting, allowing the ejector component to accurately extend into the cutting cavity and stably eject the casting, improving the reliability and stability of the ejection process. The four ejector guide pillars at the four corners of the ejector plate provide precise guidance, making the movement trajectory of the ejector plate more accurate. This ensures that the ejector component extends into the cutting cavity along a predetermined path and accurately acts on the casting. When the shape of the cutting cavity is complex or the accuracy of the ejection position is required, this precise ejection guide can effectively avoid problems such as casting damage or incomplete ejection caused by ejection position deviation, thereby improving ejection accuracy and ensuring the quality and integrity of the casting.

[0009] Furthermore, the upper mold base includes a mold base plate and four connecting side plates, which together form a mounting cavity for accommodating the ejector assembly. This structure provides a relatively enclosed and stable working space for the ejector assembly. It makes efficient use of the internal space of the upper mold base, providing a dedicated area for the ejector assembly. This design allows the various components of the ejector assembly (such as the ejector plate, ejector guide pillars, and ejector components) to be arranged and installed in an orderly manner within the mounting cavity, avoiding mutual interference between components. It also facilitates the overall layout and optimized design of the ejector assembly, improving the utilization rate of the internal space of the mold.

[0010] Furthermore, a proximity sensor for detecting the displacement of the ejection assembly is provided on the connecting side plate, with the detection end of the sensor extending into the mounting cavity. This allows for real-time monitoring of displacement changes in components such as the ejection plate and ejection guide pillars. During the ejection process, the moving distance and speed of the ejection plate can be accurately obtained, ensuring that the ejection action is performed according to predetermined parameters. This guarantees that the casting is accurately ejected from the cutting cavity, improving the precision and quality of the cutting process. It also helps prevent excessive displacement or collision during the ejection process, reducing the risk of mold damage and protecting the precision and integrity of the mold.

[0011] Furthermore, the upper and lower mold bases are respectively provided with upper and lower limit posts. These provide precise positioning for the mold closing process. During mold closing, the upper and lower limit posts cooperate to guide the upper and lower mold bases to accurate alignment, ensuring a tight fit between the mold's closed surfaces. This improves the relative positional accuracy between the cutting tool and the casting, guaranteeing cutting quality. The upper and lower limit posts also create a buffer space between the upper and lower mold bases, preventing violent collisions between the upper and lower mold bases during rapid descent. This helps reduce impact damage to the mold.

[0012] Furthermore, an adjustment block is provided on the lower mold base located at the mounting position of the positioning core. The adjustment block can align the upper and lower mold groups, which helps to improve the positioning accuracy of the casting in the mold and ensures that the relative position between the cutting tool and the casting is accurate, thereby improving the cutting quality. At the same time, the adjustment block can prevent the positioning core from shifting or shaking due to cutting forces and other factors. A stable positioning core can ensure that the casting remains stable throughout the cutting process, avoiding problems such as cutting dimension deviation or unstable cutting quality caused by casting displacement.

[0013] The advantages and technical effects of this utility model are as follows: By adopting the above technical solution, the flash on the surface of the track plate casting can be accurately cut. The ejector component extends through the tool mounting plate into the cutting cavity, which can effectively push the casting out of the cutting cavity, ensuring the reliability of ejection and preventing the casting from getting stuck in the cavity and difficult to remove.

[0014] The lower die assembly consists of a positioning core and an upper die assembly containing the cutting tool cavity. The positioning core in the lower die assembly holds the casting to be processed, providing stable positioning for the casting. During the cutting process, the casting is firmly positioned on the positioning core, effectively preventing displacement under cutting force. It provides a precise initial positioning reference for the casting, ensuring stability during the cutting process, accurately removing burrs, and thus reducing dimensional deviations.

[0015] With the designed ejection assembly, after cutting, the ejection plate can move towards the casting under the guidance of the ejection guide post. The ejection component extends into the cutting cavity, smoothly ejecting the cut casting from the cavity. This not only avoids the casting getting stuck in the cutting cavity and improves the mold's working efficiency, but also ensures the integrity and surface quality of the casting, preventing damage to the casting due to improper ejection. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure provided in an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the internal connection structure provided in an embodiment of the present utility model.

[0018] In the diagram: 1. Upper module; 1-1. Upper mold base; 1-2. Tool mounting plate; 1-3. Mold base plate; 1-4. Connecting side plate; 2. Lower module; 2-1. Lower mold base; 2-2. Positioning core; 2-3. Adjusting block; 3. Cutting tool; 4. Unloading assembly; 4-1. Unloading plate; 4-2. Unloading guide post; 4-3. Unloading component; 4-4. Connecting plate; 5. Proximity sensor; 6. Upper limit post; 7. Lower limit post. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0020] It should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] like Figure 1 and Figure 2 As shown, this application provides a die for cutting the flash on the surface of a track plate casting, including an upper die 1 and a lower die 2 that can move relative to each other. The lower die 2 includes a lower die base 2-1 and a positioning core 2-2 provided on the lower die base 2-1. The casting to be processed is placed on the positioning core 2-2.

[0022] The upper module 1 includes an upper mold base 1-1. A cutting tool 3 is provided on the end face of the upper mold base 1-1 facing the positioning core 2-2 through a tool mounting plate 1-2. The cutting tool 3 is provided with a cutting cavity that matches the outer contour of the casting.

[0023] The upper mold base 1-1 is equipped with an ejector assembly 4 for ejecting the casting from the cutting cavity. Specifically, the upper mold base 1-1 includes a mold base plate 1-3 and four connecting side plates 1-4, which together form a mounting cavity for accommodating the ejector assembly 4. This structure provides a relatively enclosed and stable working space for the ejector assembly 4. It makes efficient use of the internal space of the upper mold base 1-1, providing a dedicated area for the ejector assembly 4. This design allows the various components of the ejector assembly 4, such as the ejector plate 4-1, ejector guide post 4-2, and ejector component 4-3, to be arranged and installed in an orderly manner within the mounting cavity, avoiding mutual interference between components. It also facilitates the overall layout and optimized design of the ejector assembly 4, improving the utilization rate of the internal space of the mold.

[0024] The ejector assembly 4 includes an ejector plate 4-1 and an ejector guide post 4-2. The ejector plate 4-1 can move along the ejector guide post 4-2 toward the casting. An ejector component 4-3 is provided on the ejector plate 4-1 facing the casting. Specifically, the cross-section of the ejector component 4-3 corresponds to the cross-section of the casting to be processed. The ejector component 4-3 penetrates the tool mounting plate 1-2 and extends into the cutting cavity. A connecting plate 4-4 connected to the ejector cylinder is provided on the ejector plate 4-1 on the opposite side of the ejector component 4-3.

[0025] Preferably, the cutting tool 3 is assembled from at least two cutting components, which form a cutting cavity corresponding to the outer contour of the casting and create a cutting edge for cutting the burrs on the surface of the casting. The split-type tool structure reduces the contact area between the casting and the cutting tool 3, thereby reducing the friction generated by the overall contact between the tool and the casting, reducing the resistance to material removal, and facilitating the removal of the casting.

[0026] Preferably, four ejector guide posts 4-2 are provided, each positioned at one of the four corners of the ejector plate 4-1. This arrangement provides a very stable guiding effect for the ejector plate 4-1. During the ejection process, the ejector plate 4-1 needs to move along the ejector guide posts 4-2 to push the casting out of the cutting cavity. The four ejector guide posts 4-2 are evenly distributed around the ejector plate 4-1, making the force on the ejector plate 4-1 more even during movement and preventing the ejector plate 4-1 from tilting or shaking. This helps ensure that the ejector plate 4-1 moves smoothly towards the casting, allowing the ejector component 4-3 to accurately extend into the cutting cavity and stably push out the casting, improving the reliability and stability of the ejection process. The four ejector guide posts 4-2 provide precise guidance at the four corners of the ejector plate 4-1, making the movement trajectory of the ejector plate 4-1 more accurate. This ensures that the ejector component 4-3 extends into the cutting cavity along a predetermined path and accurately acts on the casting. When the shape of the cutting cavity is complex or the accuracy of the ejection position is required, this precise ejection guide can effectively avoid problems such as casting damage or incomplete ejection caused by ejection position deviation, thereby improving ejection accuracy and ensuring the quality and integrity of the casting.

[0027] Preferably, the connecting side plate 1-4 is equipped with a proximity sensor 5 for detecting the displacement of the ejector assembly 4, and the detection end of the proximity sensor 5 extends into the mounting cavity. This allows for real-time monitoring of displacement changes in components such as the ejector plate 4-1 and the ejector guide post 4-2. During the ejection process, the moving distance and speed of the ejector plate 4-1 can be accurately obtained, ensuring that the ejection action is performed according to predetermined parameters. This guarantees that the casting is accurately ejected from the cutting cavity, improving the precision and quality of the cutting process. It also helps prevent excessive displacement or collision during the ejection process, reducing the risk of mold damage and protecting the precision and integrity of the mold.

[0028] Preferably, the upper mold base 1-1 and the lower mold base 2-1 are respectively provided with an upper limit post 6 and a lower limit post 7. This provides precise positioning for the mold closing process of the upper mold base 1-1 and the lower mold base 2-1. During mold closing, the upper limit post 6 and the lower limit post 7 cooperate to guide the upper mold base 1-1 and the lower mold base 2-1 to accurately align, ensuring a tight fit between the mold closing surfaces, thereby improving the relative positional accuracy between the cutting tool 3 and the casting, and ensuring cutting quality. The upper limit post 6 and the lower limit post 7 can also form a certain buffer space between the upper mold base 1-1 and the lower mold base 2-1, preventing the upper mold base 1-1 from colliding violently with the lower mold base 2-1 during rapid descent. This helps reduce impact damage to the mold.

[0029] Preferably, an adjustment block 2-3 is provided on the lower mold base 2-1 located at the installation position of the positioning core 2-2. The adjustment block 2-3 can align the upper mold assembly 1 and the lower mold assembly 2, which helps to improve the positioning accuracy of the casting in the mold and ensures that the relative position between the cutting tool 3 and the casting is accurate, thereby improving the cutting quality. At the same time, the adjustment block 2-3 can prevent the positioning core 2-2 from shifting or shaking due to cutting force and other factors. A stable positioning core 2-2 can ensure that the casting remains stable throughout the cutting process, avoiding problems such as cutting size deviation or unstable cutting quality caused by casting displacement.

[0030] By adopting the above technical solution, the flash on the surface of the track plate casting can be accurately cut. The ejector component 4-3 extends through the tool mounting plate 1-2 into the cutting cavity, which can effectively push the casting out of the cutting cavity, ensuring the reliability of ejection and preventing the casting from getting stuck in the cavity and difficult to remove.

[0031] The positioning core 2-2 of the lower module 2 and the cavity of the cutting tool 3 in the upper module 1 are used to place the casting to be processed, providing stable positioning for the casting. During the cutting process, the casting is firmly positioned on the positioning core 2-2, which can effectively prevent the casting from shifting under the action of cutting force. It provides a precise initial positioning reference for the casting, ensures stability during the cutting process, accurately removes flash, and thus reduces dimensional deviations.

[0032] With the ejector assembly 4 in place, after cutting, the ejector plate 4-1 can move towards the casting under the guidance of the ejector guide post 4-2. The ejector component 4-3 extends into the cutting cavity, smoothly ejecting the cut casting from the cutting cavity. This not only avoids the casting getting stuck in the cutting cavity and improves the working efficiency of the mold, but also ensures the integrity and surface quality of the casting, preventing damage to the casting due to improper ejection.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A track plate casting surface flash cutting die characterized by, The upper die set and the lower die set are relatively movable, the lower die set comprises a lower die base and a positioning core arranged on the lower die base, and a casting to be processed is arranged on the positioning core; The upper die set comprises an upper die base, a cutting tool is arranged on an end face of the upper die base facing the positioning core through a tool mounting plate, and the cutting tool is provided with a cutting cavity matched with the outer contour of the casting; A material removal assembly for removing the casting from the cutting cavity is arranged in the upper die base, the material removal assembly comprises a material removal plate and a material removal guide column, the material removal plate is movable towards the casting along the material removal guide column, a material removal member is arranged on the material removal plate facing the casting, the material removal member penetrates through the tool mounting plate and extends into the cutting cavity, and a connecting disc connected with a material removal cylinder is arranged on the material removal plate at the opposite side of the material removal member.

2. The track plate casting surface flash cutting die of claim 1, wherein, The cutting tool is assembled by at least two cutting members, the cutting members enclose the cutting cavity corresponding to the outer contour of the casting, and form cutting edges for cutting the surface flash of the casting.

3. The track plate casting surface flash cutting die of claim 1 or 2, wherein, The material removal guide column is provided with four material removal guide columns respectively arranged at four corner positions of the material removal plate.

4. The track plate casting surface flash cutting die of claim 1, wherein, The upper die base comprises a die base plate and four connecting side plates, and the die base plate and the connecting side plates enclose a mounting cavity for accommodating the material removal assembly.

5. The track plate casting surface flash cutting die of claim 4, wherein, A proximity sensor for detecting the displacement of the material removal assembly is arranged on the connecting side plate, and a detection end of the proximity sensor extends into the mounting cavity.

6. The track plate casting surface flash cutting die of claim 1, wherein, Upper and lower limit columns are oppositely arranged on the upper die base and the lower die base.

7. The track plate casting surface flash cutting die of claim 1, wherein, An adjusting block is arranged on the lower die base at the installation position of the positioning core.

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