Powder metallurgy copper-chromium contact forming female die device

Abstract

The utility model provides a powder metallurgy copper-chromium contact forming female die device which comprises an installation plate, a curved groove die is installed on the upper surface of the installation plate, a moving assembly is installed below the installation plate and comprises a base plate arranged below the installation plate, two rolling grooves are formed in the upper surface of the base plate, and the two rolling grooves are matched with the curved groove die. The inner wall of each rolling groove is fixedly connected with two moving wheels, and the top end of each moving wheel is provided with a supporting plate. The problem of one-time forming of the copper-chromium contact is solved through the arranged curved groove mold, the machining cost of the curved groove is low, the installation plate can drive the curved groove body to move front and back through cooperation of the arranged base plate, the rolling groove, the moving wheels, the supporting plate and the installation plate and rolling connection of the moving grooves and the rolling wheels, and the machining efficiency is improved. And therefore, the molten copper-chromium alloy can be uniformly distributed in the curved groove mold, the quality of the cast copper-chromium contact is further improved, and the curved groove mold can be suitable for mass production.

Description

Technical Field

[0001] The utility model relates to the technical field of copper-chromium contact molding, in particular to a powder metallurgy copper-chromium contact molding female mold device. Background Art

[0002] Copper-chromium contact is an electrical contact material with excellent comprehensive performance. It is widely used in various medium and high voltage switch fields in the power industry. This contact material has many advantages, such as high voltage resistance, large breaking capacity, good corrosion resistance, strong air absorption ability and long life. When copper-chromium contacts are produced, molten copper-chromium alloy is usually filled in the female mold, and then solidified into the required contact shape and size.

[0003] The current female mold device cannot form the powder metallurgy copper-chromium contact in one step when in use, and the mold processing cost is high, the quality of the copper-chromium contact produced is unstable, and it is not suitable for mass production. For this reason, we provide a powder metallurgy copper-chromium contact forming female mold device. Utility Model Content

[0004] The utility model provides a powder metallurgy copper-chromium contact forming female mold device to solve the technical problems in the above background technology that the powder metallurgy copper-chromium contact cannot be formed in one time, the mold processing cost is high, the quality of the copper-chromium contact produced is unstable, and it cannot be suitable for mass production.

[0005] The purpose and effect of the powder metallurgy copper-chromium contact forming female mold device of the utility model are achieved by the following specific technical means: a powder metallurgy copper-chromium contact forming female mold device, comprising a mounting plate, a curved groove mold is installed on the upper surface of the mounting plate, a moving component is installed below the mounting plate, the moving component comprises a base plate arranged below the mounting plate, two rolling grooves are opened on the upper surface of the base plate, two moving wheels are fixedly connected to the inner wall of each rolling groove, a support plate is installed on the top of each moving wheel, and the top of each support plate is connected to the bottom surface of the mounting plate.

[0006] The moving assembly also includes connecting grooves opened on the left and right sides of the base plate, and the inner wall of each connecting groove is slidably connected to two L-shaped connecting plates, and the top end of each L-shaped connecting plate is connected to the bottom surface of the mounting plate.

[0007] A sealing cover is clamped on the top of the curved groove mold, and a heat-insulating pull ring is fixedly connected to the upper surface of the sealing cover.

[0008] The upper surface of the sealing cover is fixedly connected with an exhaust pipe, and the exhaust pipe is in an L-shape.

[0009] An annular frame is fixedly connected to the upper surface of the mounting plate, and an air guide cover is fixedly connected to the upper surface of the annular frame.

[0010] A handle is fixedly connected to the front side of the mounting plate.

[0011] Beneficial effects:

[0012] By setting up the curved groove mold, the problem of one-time forming of the copper-chromium contact is solved, and the processing cost of the curved groove is low. By cooperating with the set base plate, rolling groove, moving wheel, support plate and mounting plate, and utilizing the rolling connection between the moving groove and the rolling wheel, the mounting plate can drive the curved groove body to move back and forth, so that the molten copper-chromium alloy can be evenly distributed inside the curved groove mold, further improving the quality of the cast copper-chromium contact, and being suitable for mass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0014] Figure 2 It is a three-dimensional structural schematic diagram of a side view of the mobile component of the utility model.

[0015] Figure 3 It is a three-dimensional structural schematic diagram of a top view of the mounting plate of the utility model.

[0016] Figure 4 It is a three-dimensional structural schematic diagram of the top view of the curved groove mold of the utility model.

[0017] Figure 1-4 In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0018] 1. Mounting plate; 2. Curved groove mold; 3. Moving assembly; 301. Base plate; 302. Rolling groove; 303. Moving wheel; 304. Support plate; 305. Connecting groove; 306. L-shaped connecting plate; 4. Sealing cover; 5. Insulating pull ring; 6. Exhaust pipe; 7. Ring frame; 8. Air guide cover; 9. Pull handle. DETAILED DESCRIPTION

[0019] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0021] As attached Figure 1 To Attachment Figure 4 As shown: a powder metallurgy copper-chromium contact forming female mold device includes a mounting plate 1, a curved groove mold 2 is installed on the upper surface of the mounting plate 1, the curved groove mold 2 and the mounting plate 1 can be disassembled, when the curved groove mold 2 is severely worn, the staff can replace it with a new curved groove mold 2, which is beneficial to the production of copper-chromium contacts.

[0022] A moving component 3 is installed below the mounting plate 1. The moving component 3 includes a base plate 301 arranged below the mounting plate 1. Two rolling grooves 302 are provided on the upper surface of the base plate 301. The inner wall of each rolling groove 302 is fixedly connected to two moving wheels 303. A support plate 304 is installed on the top of each moving wheel 303. The top of each support plate 304 is connected to the bottom surface of the mounting plate 1. When a push-pull force is applied to the mounting plate 1, the mounting plate 1 will drive the moving wheel 303 to roll inside the rolling groove 302. At the same time, the mounting plate 1 will drive the curved groove mold 2 to move back and forth smoothly, so that the molten copper-chromium alloy inside the curved groove mold 2 can flow evenly and be distributed, thereby ensuring the quality of the cast copper-chromium contacts.

[0023] The moving component 3 also includes connecting grooves 305 opened on the left and right sides of the base plate 301. The inner wall of each connecting groove 305 is slidably connected to two L-shaped connecting plates 306. The top of each L-shaped connecting plate 306 is connected to the bottom surface of the mounting plate 1. The connection between the L-shaped connecting plate 306 and the connecting groove 305 can be used to connect the mounting plate 1 and the base plate 301, which can prevent the moving wheel 303 and the rolling groove 302 from separating, and further ensure the safety of pushing and pulling the curved groove mold 2.

[0024] A sealing cover 4 is clamped on the top of the curved groove mold 2, and a heat-insulating pull ring 5 is fixedly connected to the upper surface of the sealing cover 4. When the sealing cover 4 is clamped on the top of the curved groove mold 2, foreign matter can be prevented from falling into the curved groove mold 2, thereby ensuring the quality of the cast copper-chromium contact. The heat-insulating pull ring 5 is used to facilitate the staff to remove the sealing cover 4, thereby avoiding scalding the staff.

[0025] The upper surface of the sealing cover 4 is fixedly connected with an exhaust pipe 6, which is L-shaped. When the sealing cover 4 is installed and the curved groove mold 2 is pushed forward and backward, the gas contained in the molten copper-chromium alloy will be discharged and discharged from the curved groove mold 2 through the exhaust pipe 6 to prevent the formation of pores inside the cast copper-chromium contact and affect its performance and service life. In addition, a filter net is arranged inside the exhaust pipe 6 to prevent external impurities from entering the curved groove mold 2 through the exhaust pipe 6.

[0026] An annular frame 7 is fixedly connected to the upper surface of the mounting plate 1, and a flow guide cover 8 is fixedly connected to the upper surface of the annular frame 7. When the molten copper-chromium alloy is poured and leaks to the outside of the curved slot mold 2, the flow guide cover 8 will guide the copper-chromium alloy outside the curved slot mold 2 to the inside of the annular frame 7 to prevent the copper-chromium alloy from flowing and scalding the staff. The staff can also collect and utilize the copper-chromium alloy dripping on the outside of the curved slot mold 2 later, avoiding waste.

[0027] A handle 9 is fixedly connected to the front of the mounting plate 1. The handle 9 is provided to facilitate the staff to push and pull the mounting plate 1, so that the curved groove mold 2 can move smoothly, which is beneficial to the uniform distribution of the molten copper-chromium alloy inside the curved groove mold 2, thereby ensuring the casting quality of the copper-chromium contact.

[0028] Working principle: When in use, the sealing cover 4 can be removed, and then the molten copper-chromium alloy is poured into the curved groove mold 2, and then the sealing cover 4 is clamped on the top of the curved groove mold 2, and then the handle 9 is used to pull the mounting plate 1 to move, and the moving wheel 303 will roll inside the rolling groove 302, and the curved groove mold 2 will move back and forth at the same time, so that the molten copper-chromium alloy can be evenly distributed inside the curved groove mold 2, which not only allows the copper-chromium contact to be formed in one time, but also reduces the cost, further improves the quality of the cast copper-chromium contact, and can be suitable for mass production.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A powder metallurgy copper-chromium contact forming female mold device, comprising a mounting plate (1), characterized in that: A curved groove mold (2) is installed on the upper surface of the mounting plate (1), and a moving assembly (3) is installed below the mounting plate (1). The moving assembly (3) comprises a base plate (301) arranged below the mounting plate (1), and two rolling grooves (302) are provided on the upper surface of the base plate (301). Two moving wheels (303) are fixedly connected to the inner wall of each rolling groove (302), and a support plate (304) is installed on the top end of each moving wheel (303), and the top end of each support plate (304) is connected to the bottom surface of the mounting plate (1).

2. The powder metallurgy copper-chromium contact forming female mold device according to claim 1, characterized in that: The moving assembly (3) further comprises connecting grooves (305) formed on the left and right sides of the base plate (301), the inner wall of each connecting groove (305) being slidably connected to two L-shaped connecting plates (306), and the top end of each L-shaped connecting plate (306) being connected to the bottom surface of the mounting plate (1).

3. The powder metallurgy copper-chromium contact forming female mold device according to claim 1, characterized in that: A sealing cover (4) is clamped on the top end of the curved groove mold (2), and a heat-insulating pull ring (5) is fixedly connected to the upper surface of the sealing cover (4).

4. The powder metallurgy copper-chromium contact forming female mold device according to claim 3, characterized in that: The upper surface of the sealing cover (4) is fixedly connected to an exhaust pipe (6), and the exhaust pipe (6) is L-shaped.

5. The powder metallurgy copper-chromium contact forming female mold device according to claim 1, characterized in that: An annular frame (7) is fixedly connected to the upper surface of the mounting plate (1), and an air guide cover (8) is fixedly connected to the upper surface of the annular frame (7).

6. The powder metallurgy copper-chromium contact forming female mold device according to claim 1, characterized in that: A handle (9) is fixedly connected to the front side of the mounting plate (1).

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