Hard alloy blade pressing die

Abstract

The utility model relates to the technical field of hard alloy blade machining, in particular to a hard alloy blade pressing die which comprises a base, a lower die and an auxiliary assembly, the lower die is installed on the upper surface of the base, a guide column is installed on the inner wall of the lower die, and an upper die is connected to the surface of the guide column in a sliding mode. The upper mold is matched with the lower mold, a supporting plate is arranged above the upper mold, the upper surface of the supporting plate is fixedly connected with a hydraulic cylinder, the driving end of the hydraulic cylinder is fixedly connected with the upper surface of the upper mold, and the auxiliary assembly is arranged on the surface of the base. According to the utility model, the auxiliary assembly is arranged, so that the extraction structure does not interfere with the use of equipment when being used, the problems that the extraction structure is arranged in a mold processing area and is easy to interfere with the processing of a mold and the defect rate of a processed workpiece is increased are reduced, and the processing qualification rate and the processing precision of the pressing mold are further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cemented carbide blade processing, in particular to a cemented carbide blade pressing die. Background Technique

[0002] A cemented carbide blade is a cutting tool made of cemented carbide material. Cemented carbide has the advantages of high hardness, good wear resistance, and strong heat resistance, which makes the cemented carbide blade perform excellently in high-efficiency cutting. Different types of cemented carbide blades are suitable for different materials and processing technologies. Selecting the appropriate blade is crucial for improving processing quality and reducing costs; when producing cemented carbide blades, production enterprises often use pressing dies for processing. By using pressing dies, waste during processing can be reduced, thereby improving the production efficiency of production enterprises.

[0003] Existing technologies such as the utility model with the publication number CN214920482U disclose a pressing die for cemented carbide blades. This patent uses a die body and a telescopic cylinder. The die body includes an upper die, the bottom end of the upper die is movably connected to a lower die, the bottom end of the lower die is fixedly connected to a support frame, the surface of the support frame is fixedly connected to a telescopic cylinder, and a connecting mechanism is arranged inside the lower die. The connection between the dies in this utility model is convenient for disassembly and replacement, facilitating the connection and fixation of dies of different sizes, and also facilitating the removal of the pressed object. It prevents the connection and fixation between the pressed object and the template under the action of pressure, making it inconvenient to operate in a narrow space, and solves the problem that when the die presses an object, the pressed object is extremely inconvenient to remove under the action of pressure.

[0004] During the process of producing cemented carbide blades with the aid of a pressing die, there is an existing pressing die for alloy blades as described above. In order to facilitate the staff to pick up the workpiece, an extraction structure is installed on the upper die. When the extraction structure is in use, it will be in the processing area of the lower die. When the equipment is processing, the extraction structure located in the processing area will interfere with the normal production of the equipment, resulting in a decrease in the qualification rate of the workpieces produced by the pressing die and an increase in the production cost of the production enterprise. Summary of the Utility Model

[0005] The purpose of the present utility model is to at least to some extent solve the shortcomings in the existing technology that when the equipment is processing, the extraction structure located in the processing area will interfere with the normal production of the equipment, resulting in a decrease in the qualification rate of the workpieces produced by the pressing die and an increase in the production cost of the production enterprise, and to propose a cemented carbide blade pressing die.

[0006] To achieve the above object, the utility model adopts the following technical solutions: A cemented carbide blade pressing die, comprising a base, a lower die and an auxiliary component. The lower die is installed on the upper surface of the base. Guide posts are installed on the inner wall of the lower die. An upper die is slidably connected to the surface of the guide posts. The upper die is adapted to the lower die. A support plate is arranged above the upper die. A hydraulic cylinder is fixedly connected to the upper surface of the support plate. The driving end of the hydraulic cylinder is fixedly connected to the upper surface of the upper die. The auxiliary component is arranged on the surface of the base;

[0007] The auxiliary component includes a jacking unit. The jacking unit includes a connecting push plate. An installation cavity is formed on the side surface of the base. The connecting push plate is slidably connected to the inner wall of the installation cavity. A jacking post is fixedly connected to the upper surface of the connecting push plate. A top plate is fixedly connected to the upper surface of the jacking post. The top plate is located inside the lower die. A connecting plate is installed on the side surface of the connecting push plate. A threaded hole is formed on the surface of the connecting plate. A positioning pin is threadedly connected to the inner wall of the threaded hole of the connecting plate. The positioning pin penetrates through the lower surface of the connecting push plate. A load-bearing block is fixedly connected to the side surface of the connecting plate;

[0008] The auxiliary component further includes a linkage unit. The linkage unit includes a guide rail. The guide rail is fixedly connected to the side surface of the base. The guide rail is fixedly connected to the lower surface of the support plate. A slider is slidably connected to the surface of the guide rail. A limiting hole is formed on the surface of the slider. A fixing block is fixedly connected to the inner wall of the limiting hole of the slider. A connecting cable is fixedly connected to the lower surface of the fixing block. A guiding cylinder is fixedly connected to the upper surface of the load-bearing block. A limiting block is fixedly connected to the inner wall of the guiding cylinder. The limiting block is fixedly connected to the lower surface of the connecting cable.

[0009] Preferably, the number of the jacking posts is four. The four jacking posts are diagonally arranged with respect to the top plate. The jacking posts are slidably connected to the inner wall of the installation cavity. By means of the jacking posts installed around the top plate, the top plate can be stably jacked upwards, so that the four corners of the top plate are always at the same level, thereby improving the smoothness of the top plate during the jacking process.

[0010] Preferably, the connecting plate is slidably connected to the inner wall of the installation cavity. The connecting plate can connect the connecting push plate and the load-bearing block to achieve the linkage effect between the two, ensuring that the load-bearing block drives the connecting push plate to move.

[0011] Preferably, the number of the positioning pins is two. The two positioning pins are symmetrically arranged front and back with respect to the connecting plate. By means of the positioning pins installed on the inner wall of the connecting plate, the connecting plate can be stably fixed on the connecting push plate, and the stability of the connection part between the connecting plate and the connecting push plate is increased.

[0012] Preferably, the diameter of the fixing block is larger than that of the connecting cable. The position of the connecting cable can be restricted on the slider by the fixing block, so as to ensure that the connecting cable can be stably pulled when the slider moves.

[0013] Preferably, the connecting cable is located on the inner wall of the limiting hole. The connecting cable penetrates through the lower surface of the slider. The connecting cable is located on the inner wall of the guiding cylinder. By means of the connecting cable installed on the fixing block and the limiting block, the linkage effect between the fixing block and the limiting block can be ensured, so that when the fixing block moves, it can drive the limiting block to move.

[0014] Preferably, the diameter of the limiting block is larger than that of the connecting cable. By means of the limiting block installed on the surface of the connecting cable, the bearing block can be pulled in cooperation with the guiding cylinder, so as to realize the movement of the bearing block.

[0015] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0016] In the present utility model, by setting the auxiliary component, when processing, the processing raw material is injected into the processing area of the lower mold. When the injection of the raw material is completed, the switch of the hydraulic cylinder is turned on. The hydraulic cylinder pushes the upper mold, and the upper mold moves downward and extrudes the raw material in the lower mold. The raw material is shaped during the extrusion process, and then the production of the blade is completed. When the blade needs to be taken out after being shaped, the hydraulic cylinder is controlled to reset. The hydraulic cylinder drives the upper mold and the slider to displace. The slider cooperates with the fixing block to pull the connecting cable under the guidance of the guide rail. The connecting cable pulls the limiting block, and the limiting block slides in the guiding cylinder. When the limiting block moves to the maximum distance, the limiting block pulls the guiding cylinder upward. The guiding cylinder pulls the bearing block under force. The bearing block cooperates with the connecting plate to pull the connecting push plate. The connecting push plate moves upward and cooperates with the ejector pin to lift the top plate. The top plate pushes the processed workpiece out of the lower mold under the action of the ejector pin. When the top plate moves to the maximum distance, the workpiece on the top plate can be taken out. By setting the auxiliary component, the extraction structure will not interfere with the use of the equipment during use, thus reducing the problem that the extraction structure is arranged in the mold processing area and easily interferes with the mold processing, resulting in an increase in the defect rate of the processed workpiece, and further improving the processing qualification rate and precision of the pressing mold. Description of the Drawings

[0017] Figure 1 is a three-dimensional structural schematic diagram of a cemented carbide blade pressing mold proposed by the present utility model;

[0018] Figure 2 is an unfolded structural schematic diagram of a cemented carbide blade pressing mold proposed by the present utility model;

[0019] Figure 3 is a front view of a cemented carbide blade pressing mold proposed by the present utility model;

[0020] Figure 4 The figure shows a schematic structural diagram of an auxiliary component of a carbide blade pressing die according to the present utility model;

[0021] Figure 5 The present utility model provides a carbide blade pressing die Figure 4 Schematic diagram of the structure at position A.

[0022] Legend:

[0023] 1. Base; 2. Lower die; 3. Guide post; 4. Upper die; 5. Support plate; 6. Hydraulic cylinder; 7. Auxiliary component; 71. Jacking unit; 711. Installation cavity; 712. Connecting push plate; 713. Jacking post; 714. Top plate; 715. Connecting plate; 716. Positioning pin; 717. Load-bearing block; 72. Linkage unit; 721. Guide rail; 722. Slide block; 723. Fixed block; 724. Connecting cable; 725. Guide tube; 726. Limiting block. Specific implementation mode

[0024] Please refer to Figures 1 - 5 , the present utility model provides a technical solution: a carbide blade pressing die, including a base 1, a lower die 2 and an auxiliary component 7. The lower die 2 is installed on the upper surface of the base 1. A guide post 3 is installed on the inner wall of the lower die 2. The upper die 4 is slidably connected to the surface of the guide post 3. The upper die 4 is adapted to the lower die 2. A support plate 5 is arranged above the upper die 4. A hydraulic cylinder 6 is fixedly connected to the upper surface of the support plate 5. The driving end of the hydraulic cylinder 6 is fixedly connected to the upper surface of the upper die 4. The auxiliary component 7 is arranged on the surface of the base 1.

[0025] In this embodiment: The auxiliary component 7 includes a jacking unit 71. The jacking unit 71 includes a connecting push plate 712. An installation cavity 711 is formed on the side surface of the base 1. The connecting push plate 712 is slidably connected to the inner wall of the installation cavity 711. The upper surface of the connecting push plate 712 is fixedly connected to a jacking post 713. The upper surface of the jacking post 713 is fixedly connected to a top plate 714. The top plate 714 is located inside the lower die 2. A connecting plate 715 is installed on the side surface of the connecting push plate 712. A threaded hole is formed on the surface of the connecting plate 715. A positioning pin 716 is threadedly connected to the inner wall of the threaded hole of the connecting plate 715. The positioning pin 716 penetrates through the lower surface of the connecting push plate 712. A load-bearing block 717 is fixedly connected to the side surface of the connecting plate 715;

[0026] The auxiliary component 7 further includes a linkage unit 72. The linkage unit 72 includes a guide rail 721. The guide rail 721 is fixedly connected to the side surface of the base 1 and the lower surface of the support plate 5. A slider 722 is slidably connected to the surface of the guide rail 721. A limiting hole is formed in the surface of the slider 722. A fixing block 723 is fixedly connected to the inner wall of the slider 722 at the limiting hole. A connecting cable 724 is fixedly connected to the lower surface of the fixing block 723. A guiding cylinder 725 is fixedly connected to the upper surface of the load-bearing block 717. A limiting block 726 is fixedly connected to the inner wall of the guiding cylinder 725. The limiting block 726 is fixedly connected to the lower surface of the connecting cable 724.

[0027] Specifically, the number of the top columns 713 is four. The four top columns 713 are diagonally arranged with respect to the top plate 714. The top columns 713 are slidably connected to the inner wall of the installation cavity 711. By means of the top columns 713 installed around the top plate 714, the top plate 714 can be stably lifted upwards, so that the four corners of the top plate 714 are always on the same horizontal plane, thereby improving the smoothness of the top plate 714 during the lifting process.

[0028] Specifically, the connecting plate 715 is slidably connected to the inner wall of the installation cavity 711.

[0029] In this embodiment: The connecting plate 715 can connect and link the pushing plate 712 and the load-bearing block 717 to achieve the linkage effect between the two, ensuring that the load-bearing block 717 drives the pushing plate 712 to move.

[0030] Specifically, the number of the positioning pins 716 is two. The two positioning pins 716 are symmetrically arranged before and after with respect to the connecting plate 715. By means of the positioning pins 716 installed on the inner wall of the connecting plate 715, the connecting plate 715 can be stably fixed on the pushing plate 712, and the stability of the connection part between the connecting plate 715 and the pushing plate 712 is increased.

[0031] In this embodiment: The diameter of the fixing block 723 is larger than the diameter of the connecting cable 724.

[0032] In this embodiment: The fixing block 723 can limit the position of the connecting cable 724 on the slider 722, so as to ensure that the slider 722 can stably pull the connecting cable 724 during the moving process.

[0033] Specifically, the connecting cable 724 is located on the inner wall of the limiting hole. The connecting cable 724 penetrates through the lower surface of the slider 722. The connecting cable 724 is located on the inner wall of the guiding cylinder 725. By means of the connecting cable 724 installed on the fixing block 723 and the limiting block 726, the linkage effect between the fixing block 723 and the limiting block 726 can be ensured, so that when the fixing block 723 moves, it can drive the limiting block 726 to move.

[0034] Specifically, the diameter of the limiting block 726 is greater than the diameter of the connecting cable 724 .

[0035] In this embodiment, the limiting block 726 installed on the surface of the connecting cable 724 can cooperate with the guide tube 725 to pull the load-bearing block 717, thereby realizing the movement of the load-bearing block 717.

[0036] Working principle: During processing, the processing raw materials are injected into the processing area of ​​the lower mold 2. When the raw materials are filled, the switch of the hydraulic cylinder 6 is turned on, and the hydraulic cylinder 6 pushes the upper mold 4, and the upper mold 4 moves downward and squeezes the raw materials in the lower mold 2. The raw materials are shaped during the extrusion process, and then the production of the blade is completed; when the blade is shaped and needs to be taken, the hydraulic cylinder 6 is controlled to reset, and the hydraulic cylinder 6 drives the upper mold 4 and the slider 722 to move. The slider 722 cooperates with the fixed block 723 under the guidance of the guide rail 721 to pull the connecting cable 724, and the connecting cable 724 Pull the limit block 726, and the limit block 726 slides in the guide tube 725. When the limit block 726 moves to the maximum spacing, the limit block 726 pulls the guide tube 725 upward, and the guide tube 725 is forced to pull the load block 717. The load block 717 cooperates with the connecting plate 715 to pull the connecting push plate 712. The connecting push plate 712 moves upward and cooperates with the top column 713 to lift the top plate 714. Under the action of the top column 713, the top plate 714 pushes the processed workpiece out of the lower mold 2. When the top plate 714 moves to the maximum spacing, the workpiece on the top plate 714 can be taken out.

Claims

1. A cemented carbide blade pressing die, comprising a base (1), a lower die (2) and an auxiliary component (7), characterized in that: The lower die (2) is installed on the upper surface of the base (1). A guiding post (3) is installed on the inner wall of the lower die (2). The upper die (4) is slidably connected to the surface of the guiding post (3). The upper die (4) is adapted to the lower die (2). A support plate (5) is arranged above the upper die (4). A hydraulic cylinder (6) is fixedly connected to the upper surface of the support plate (5). The driving end of the hydraulic cylinder (6) is fixedly connected to the upper surface of the upper die (4). The auxiliary assembly (7) is arranged on the surface of the base (1). The auxiliary assembly (7) includes a jacking unit (71). The jacking unit (71) includes an abutting push plate (712). An installation cavity (711) is formed on the side surface of the base (1). The abutting push plate (712) is slidably connected to the inner wall of the installation cavity (711). A jacking post (713) is fixedly connected to the upper surface of the abutting push plate (712). A top plate (714) is fixedly connected to the upper surface of the jacking post (713). The top plate (714) is located inside the inner wall of the lower die (2). A connecting plate (715) is installed on the side surface of the abutting push plate (712). A threaded hole is formed on the surface of the connecting plate (715). A positioning pin (716) is threadedly connected to the inner wall of the threaded hole of the connecting plate (715). The positioning pin (716) penetrates through the lower surface of the abutting push plate (712). A load-bearing block (717) is fixedly connected to the side surface of the connecting plate (715).

2. The cemented carbide blade pressing die according to claim 1, characterized in that: The number of the jacking posts (713) is four. The four jacking posts (713) are diagonally arranged with respect to the top plate (714). The jacking posts (713) are slidably connected to the inner wall of the installation cavity (711).

3. The cemented carbide blade pressing die according to claim 1, wherein: The connecting plate (715) is slidably connected to the inner wall of the installation cavity (711).

4. The cemented carbide blade pressing die according to claim 1, wherein: The number of the positioning pins (716) is two. The two positioning pins (716) are symmetrically arranged in the front and back with respect to the connecting plate (715).

5. The carbide insert pressing die according to any one of claims 1-4, characterized in that: The auxiliary assembly (7) further includes a linkage unit (72). The linkage unit (72) includes a guide rail (721). The guide rail (721) is fixedly connected to the side surface of the base (1). The guide rail (721) is fixedly connected to the lower surface of the support plate (5). A slider (722) is slidably connected to the surface of the guide rail (721). A limiting hole is formed on the surface of the slider (722). A fixing block (723) is fixedly connected to the inner wall of the limiting hole of the slider (722). A connecting cable (724) is fixedly connected to the lower surface of the fixing block (723). A guiding cylinder (725) is fixedly connected to the upper surface of the load-bearing block (717). A limiting block (726) is fixedly connected to the inner wall of the guiding cylinder (725). The limiting block (726) is fixedly connected to the lower surface of the connecting cable (724).

6. The cemented carbide blade pressing die according to claim 5, wherein: The diameter of the fixing block (723) is larger than the diameter of the connecting cable (724).

7. The cemented carbide blade pressing die according to claim 5, wherein: The connecting cable (724) is located inside the inner wall of the limiting hole. The connecting cable (724) penetrates through the lower surface of the slider (722). The connecting cable (724) is located inside the inner wall of the guiding cylinder (725).

8. The carbide insert pressing die according to claim 5, wherein: The diameter of the limiting block (726) is greater than the diameter of the connecting cable (724).

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