A powder metallurgy pressing die

Abstract

The utility model provides a powder metallurgy pressing die, which is installed on a machine platform for use. A hydraulic rod is arranged on the machine platform, including an upper die arranged at the telescopic end of the hydraulic rod and a lower die installed on the machine platform, and also including a lifting plate arranged in the lower die that can be lifted and lowered. A connecting seat is arranged on the machine platform that can be lifted and lowered, and the connecting seat penetrates the lower die and is connected to the lifting plate. A linkage mechanism connected to the upper die and the connecting seat is arranged on the lower die, and the lifting of the upper die is converted into driving the lifting of the connecting seat through the linkage mechanism. The die structure can synchronize the ejection of the finished product with the lifting of the upper die, effectively improving the safety and efficiency of the processing.

Description

Technical Field

[0001] The utility model relates to the technical field of powder metallurgy, in particular to a powder metallurgy pressing die. Background Art

[0002] Powder metallurgy technology originated from the earliest concept of human beings using handmade clay products. After discovering that metals can be made into powders and then processed in a fixed way, most metal materials that can be powdered can be formed into products using powder metallurgy technology, especially in cast and forged gear parts, which are more convenient and efficient to prepare using powder metallurgy technology.

[0003] For example, the Chinese utility model patent with patent number 201921389300.8 provides a powder metallurgy pressing die, in which a motor is fixedly connected to the bottom of the lower casing of the die, a lifting block is fixedly connected to the output shaft of the motor, and a lifting rod is abutted on the upper part of the lifting block. The lifting block can be driven up and down by controlling the start of the motor to eject the parts in the lower die through the lifting rod, thereby improving the convenience of processing parts.

[0004] However, in the existing powder metallurgy pressing mold, the part pressing and part ejection are controlled separately, which makes it inconvenient to synchronize the opening of the upper mold and the ejection of the processed finished product, resulting in a decrease in safety and efficiency during the pressing process. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model proposes a powder metallurgy pressing die to solve the technical problem raised in the above background technology that the existing powder metallurgy pressing die is not convenient to synchronize the opening of the upper die and the ejection of the processed finished product, thereby resulting in a decrease in safety and efficiency during the pressing process.

[0006] To achieve the above object, the utility model provides the following technical solution: a powder metallurgy pressing die, which is installed on a machine platform for use, wherein a hydraulic rod is provided on the machine platform, including an upper die arranged at the telescopic end of the hydraulic rod and a lower die installed on the machine platform, and further comprising:

[0007] A lifting plate, which is arranged in the lower mold in a liftable manner;

[0008] A connecting seat is movably disposed on the machine platform and penetrates through the lower mold and is connected to the lifting plate; and

[0009] The linkage mechanism is arranged on the lower mold and connected to the upper mold and the connecting seat to convert the lifting of the upper mold into driving the lifting of the connecting seat.

[0010] In a preferred embodiment, the linkage mechanism includes:

[0011] A mounting frame, arranged on the lower mold;

[0012] A movable frame, slidably disposed on the mounting frame;

[0013] A first driving assembly is disposed on the upper mold and connected to the movable frame to convert the lifting of the upper mold into driving the movable frame to slide; and

[0014] The second driving component is arranged on the movable frame and connected to the connecting seat to convert the sliding of the movable frame into driving the connecting seat to rise and fall.

[0015] In a preferred embodiment, the first driving assembly includes a first driving column arranged on the upper mold, a driving plate is arranged on the movable frame, a guide rail is opened on the driving plate, the guide rail includes two groups of straight rails and a group of inclined rails, the two ends of the inclined rails are respectively connected to the two groups of straight rails, and the first driving column is slidably clamped in the guide rail.

[0016] In a preferred embodiment, a hinged protective cover is provided on the machine platform, and the protective cover is connected to the driving plate via a third driving component to convert the sliding of the driving plate into driving the protective cover to rotate and open.

[0017] In a preferred embodiment, the third drive assembly includes:

[0018] A guide frame, disposed on the protective cover; and

[0019] The opening column is arranged on the driving plate, and the sliding card is arranged in the guide frame.

[0020] In a preferred embodiment, the protective covers are provided in two groups, and flexible plates are provided at the ends of the two groups of protective covers. When the protective covers are in a closed state, the two groups of flexible plates are in contact with each other.

[0021] In a preferred embodiment, the second driving assembly includes a second driving column arranged at the end of the movable frame, and the connecting seat is provided with an oblique groove, and the second driving column is slidably clamped in the oblique groove.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] When the pressing mold is in use, the hydraulic rod on the control machine can be extended and retracted to drive the upper mold to rise and fall, so as to cooperate with the lower mold for powder metallurgy pressing and molding. In the process of lifting the upper mold, the lifting of the upper mold is converted into the lifting of the driving connecting seat through the linkage mechanism, and then the lifting of the lifting plate in the lower mold is controlled. In the process of pressing the mold, the lifting plate is automatically reset to the bottom of the lower mold so as not to affect the pressing process. When the upper mold rises, the pressed product is ejected from the lower mold through the lifting plate to facilitate the work of taking materials. The mold structure can synchronize the ejection of the finished product with the lifting and lowering of the upper mold, effectively improving the processing safety and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation of the utility model, the following will briefly introduce the drawings required for use in the specific implementation. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0025] Figure 1 A schematic diagram of the three-dimensional structure of a powder metallurgy pressing die provided by the utility model;

[0026] Figure 2 This is a cross-sectional view of a powder metallurgy pressing die of the utility model;

[0027] Figure 3 It is a schematic diagram of the pressed state of a powder metallurgy pressing die of the utility model;

[0028] Figure 4 This is a schematic diagram of the installation structure of a protective cover in a powder metallurgy pressing die of the utility model;

[0029] Reference numerals:

[0030] 101, machine platform; 102, hydraulic rod; 103, upper mold; 104, first driving column;

[0031] 201, lower mold; 202, mounting frame; 203, lifting plate; 204, connecting seat; 205, inclined slot;

[0032] 301, movable frame; 302, driving plate; 303, straight track; 304, inclined track; 305, opening column; 306, second driving column;

[0033] 401, protective cover; 402, flexible board; 403, guide frame. DETAILED DESCRIPTION

[0034] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0035] Example:

[0036] like Figure 1 , 2 As shown, the utility model provides a powder metallurgy pressing die, which is installed on a machine platform 101 for use. A hydraulic rod 102 is provided on the machine platform 101, including an upper die 103 provided at the telescopic end of the hydraulic rod 102 and a lower die 201 installed on the machine platform 101. The upper die 103 can be driven down by controlling the extension of the hydraulic rod 102 to cooperate with the lower die 201 for powder metallurgy pressing. After pressing and forming, the upper die 103 can be driven up and separated from the lower die 201 by controlling the hydraulic rod 102 to be retracted. The die also includes a lifting plate 203 that can be lifted and lowered and is provided in the lower die 201. In the initial state, the lifting plate 203 is located at the bottom of the lower die 201, so as not to affect the pressing of the parts. After the pressing of the parts is completed, the lifting plate 203 can be controlled to rise to push the parts out of the lower die 201 to facilitate the removal of the parts.

[0037] like Figure 1 , 2 As shown, in this embodiment, a connection seat 204 is provided on the machine table 101 so as to be liftable, and the connection seat 204 penetrates the lower mold 201 and is connected to the lifting plate 203. A linkage mechanism connected to the upper mold 103 and the connection seat 204 is provided on the lower mold 201, and the lifting of the upper mold 103 is converted into driving the lifting of the connection seat 204 through the linkage mechanism. The linkage mechanism includes a mounting frame 202 provided on the lower mold 201, and a movable frame 301 is slidably provided on the mounting frame 202. The upper mold 103 is provided with a first driving component connected to the movable frame 301, and the lifting of the upper mold 103 is converted into driving the movable frame 301 to slide through the first driving component. The first driving assembly includes a first driving column 104 arranged on the upper mold 103, a driving plate 302 is arranged on the movable frame 301, a guide rail is opened on the driving plate 302, and the guide rail includes two groups of straight rails 303 and a group of inclined rails 304. The two ends of the inclined rails 304 are respectively connected to the two groups of straight rails 303, and the first driving column 104 is slidably clamped in the guide rails.

[0038] In the process of controlling the hydraulic rod 102 to descend and driving the upper mold 103 to descend, the first driving column 104 on the upper mold 103 first slides in one of the straight rails 303. At this time, the driving plate 302 is not controlled to slide. When the first driving column 104 moves into the inclined rail 304, the driving plate 302 is driven to slide through the cooperation of the first driving column 104 and the inclined rail 304. Similarly, the upper mold 103 can drive the driving plate 302 to slide in the opposite direction during the rising process.

[0039] like Figures 2 to 4As shown, in this embodiment, the linkage mechanism further includes a second driving assembly disposed on the movable frame 301 and connected to the connecting seat 204, and the sliding of the movable frame 301 is converted into driving the connecting seat 204 to rise and fall through the second driving assembly. The second driving assembly includes a second driving column 306 disposed at the end of the movable frame 301, and an inclined groove 205 is provided on the connecting seat 204, and the second driving column 306 is slidably clamped in the inclined groove 205.

[0040] The driving plate 302 drives the second driving column 306 to slide during the sliding process, and then drives the connection seat 204 to rise and fall through the cooperation of the second driving column 306 and the inclined groove 205, so that the upper mold 103 can control the connection seat 204 to rise and fall synchronously with the lifting plate 203 during the lifting process, and the lifting plate 203 only rises and falls in the lower mold 201, so as to facilitate the ejection of parts. After the first driving column 104 drives the lifting plate 203 to descend to the limit position through the inclined track 304, the first driving column 104 moves to a set of straight tracks 303 below, and can feed materials into the lower mold 201 through the feeding device on the machine 101 during the sliding of the first driving column 104 on the straight track 303, and the materials are supported by the lifting plate 203.

[0041] like Figure 1 , 3 As shown in FIG. 4 , in this embodiment, a hinged protective cover 401 is provided on the machine 101, and the protective cover 401 is connected to the driving plate 302 through a third driving assembly, so as to convert the sliding of the driving plate 302 into driving the protective cover 401 to rotate and open. The third driving assembly includes a guide frame 403 provided on the protective cover 401, and an opening column 305 is provided on the driving plate 302, and the opening column 305 is slidably clamped in the guide frame 403.

[0042] When the upper mold 103 descends and drives the driving plate 302 to slide, the protective cover 401 is closed by the cooperation between the opening column 305 on the driving plate 302 and the guide frame 403 on the protective cover 401. After closing, the protective cover 401 protects the pressing position, and the protective cover 401 can be selectively set into two groups. The ends of the two groups of protective covers 401 are both provided with flexible plates 402. When the protective cover 401 is closed, the two groups of flexible plates 402 abut against each other. When the staff or other tools enter the pressing area, the flexible plate 402 on the protective cover 401 warns the staff, which can prompt the staff to withdraw their arms in time without causing harm to the staff.

[0043] Specific usage and beneficial effects of the utility model:

[0044] When the pressing mold is in use, the hydraulic rod 102 on the control platform 101 can be extended and retracted to drive the upper mold 103 to rise and fall, so as to cooperate with the lower mold 201 for powder metallurgy pressing and molding. In the process of the upper mold 103 rising and falling, the first driving column 104 and the inclined track 304 are used to drive the driving plate 302 to slide on the mounting frame 202. In the process of sliding, the driving plate 302 controls the rising and falling of the connecting seat 204 through the cooperation of the second driving column 306 and the inclined groove 205, thereby controlling the lifting plate 203 to rise and fall in the lower mold 201, so that in the process of pressing the mold, the lifting plate 203 is automatically reset to the bottom of the lower mold 201 so as not to affect the pressing process. When the upper mold 103 rises, the pressed finished product is ejected from the lower mold 201 through the lifting plate 203 to facilitate the work of taking materials. The mold structure can synchronize the ejection of the processed finished product with the lifting and lowering of the upper mold 103, effectively improving the processing safety and processing efficiency.

[0045] The basic principle and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments.

Claims

1. A powder metallurgy pressing die, installed on a machine platform (101) for use, wherein a hydraulic rod (102) is provided on the machine platform (101), comprising an upper die (103) provided at a telescopic end of the hydraulic rod (102) and a lower die (201) installed on the machine platform (101), characterized in that: Also included are: A lifting plate (203) is arranged in the lower mold (201) in a liftable manner; A connecting seat (204) is movably disposed on the machine platform (101) and penetrates the lower mold (201) to be connected to the lifting plate (203); and A linkage mechanism is arranged on the lower mold (201) and connected to the upper mold (103) and the connecting seat (204) so ​​as to convert the lifting of the upper mold (103) into driving the lifting of the connecting seat (204).

2. A powder metallurgy pressing die according to claim 1, characterized in that: The linkage mechanism comprises: A mounting frame (202) is arranged on the lower mold (201); A movable frame (301) slidably disposed on the mounting frame (202); A first driving assembly is arranged on the upper mold (103) and connected to the movable frame (301) to convert the lifting and lowering of the upper mold (103) into driving the movable frame (301) to slide; and A second driving component is arranged on the movable frame (301) and connected to the connecting seat (204) so ​​as to convert the sliding movement of the movable frame (301) into driving the connecting seat (204) to move up and down.

3. A powder metallurgy pressing die according to claim 2, characterized in that: The first driving component includes a first driving column (104) arranged on the upper mold (103), a driving plate (302) is arranged on the movable frame (301), a guide rail is opened on the driving plate (302), and the guide rail includes two groups of straight rails (303) and a group of inclined rails (304), and the two ends of the inclined rails (304) are respectively connected to the two groups of straight rails (303), and the first driving column (104) is slidably clamped in the guide rail.

4. A powder metallurgy pressing die according to claim 3, characterized in that: The machine platform (101) is provided with a hinged protective cover (401), and the protective cover (401) is connected to the driving plate (302) via a third driving component, so as to convert the sliding movement of the driving plate (302) into driving the protective cover (401) to rotate and open.

5. A powder metallurgy pressing die according to claim 4, characterized in that: The third driving assembly comprises: A guide frame (403) is disposed on the protective cover (401); and The opening column (305) is arranged on the driving plate (302) and is slidably mounted in the guide frame (403).

6. A powder metallurgy pressing die according to claim 4, characterized in that: The protective covers (401) are provided in two groups, and ends of the two groups of protective covers (401) are both provided with flexible plates (402). When the protective covers (401) are in a closed state, the two groups of flexible plates (402) are in contact with each other.

7. The powder metallurgy pressing die according to claim 2, characterized in that: The second driving component comprises a second driving column (306) arranged at the end of the movable frame (301), an inclined groove (205) is provided on the connecting seat (204), and the second driving column (306) is slidably locked in the inclined groove (205).

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