New energy automobile battery tray magnesium profile plane shunting combination die

Abstract

The invention relates to the technical field of extrusion dies, and discloses a new energy automobile battery tray magnesium profile plane shunting combined die which comprises an upper die, a lower die, a positioning pin and a connecting bolt. The upper die and the lower die are connected through a positioning pin and a connecting bolt; the upper die is provided with a feeding hole, five shunting holes, a shunting bridge and a die core, the shunting holes are communicated with the feeding hole, the shunting bridge is arranged among the shunting holes, and the die core is arranged at the discharging end of the shunting bridge; the lower die comprises a welding chamber, die holes, a working tape and a discharge port, the welding chamber is communicated with the shunting hole, the end face of the welding chamber is arranged in the die hole corresponding to the die core, the working tape is communicated with the shunting hole, and the discharge port is arranged at an outlet of the working tape; the side wall of the feeding hole is gradually expanded from the outer side of top to bottom, and the left side surface and the right side surface of the feeding hole form an expansion angle of 3-6 degrees with the axis. According to the invention, the magnesium alloy battery tray with a good material is manufactured to replace aluminum alloy, so that the lightweight development of new energy automobiles is directly promoted.

Description

Technical Field

[0001] The invention relates to the technical field of extrusion dies, and in particular to a plane shunt assembly die for magnesium profiles of a battery tray for a new energy vehicle. Background Art

[0002] In recent years, new energy vehicle technology has shown a booming development trend, and lightweighting is one of the key prerequisites for the development of new energy vehicles. The battery tray is the core component of new energy vehicle lightweighting, and its technological progress is directly related to the energy consumption and vehicle performance of new energy vehicles. The battery tray is produced using an extrusion die, which is a special die for metal extrusion. The metal material is plastically deformed in the die through pressure to obtain a product of the desired shape and size. It is widely used in many fields such as automobiles, aerospace, electronics, and military industry. For example, in automobile manufacturing, extrusion dies can be used to produce key components such as engine blocks, cylinder heads, and transmission housings; in the aerospace field, extrusion dies can be used to produce high-precision components such as aircraft landing gear and engine blades.

[0003] The plane splitter combination die is an important type of extrusion die, which is widely used in the production of alloy profiles and pipes. The solid ingot is extruded from the die hole of the extrusion die composed of the upper and lower dies to produce hollow profiles, so it is also called welding extrusion or splitter combination die.

[0004] However, the current extrusion dies have the following disadvantages: (1) The disadvantage of profile materials. At present, most of the existing extrusion dies are used to produce aluminum alloy profiles. However, there is a lack of extrusion dies for magnesium alloy profiles of new energy vehicle battery trays. (2) The disadvantage of service life. The extrusion die needs to withstand harsh conditions such as high temperature, high pressure and friction during the processing, which leads to a relatively short service life of the die. Frequent replacement of dies will increase production costs and production cycles. In order to ensure the normal operation of the extrusion die and extend its service life, regular maintenance and care are required. This includes cleaning the die, checking the wear, replacing damaged parts, etc. These maintenance costs may be high, especially for large or complex shaped dies. (3) The disadvantage of die design. The extrusion die usually needs to be customized according to the specific product shape and size, which leads to a high manufacturing cost of the die. For small batch or diversified production needs, the customization cost of the die may become a burden. In addition, the design needs to consider many factors, such as material fluidity, die strength, cooling system, etc., which makes the design process complicated. Therefore, there is an urgent need for a magnesium profile plane diversion combination die for new energy vehicle battery trays. Summary of the invention

[0005] The purpose of the present invention is to provide a planar shunt combination die for a magnesium profile of a battery tray for a new energy vehicle, aiming to solve the above-mentioned problem, to fill the lack of an extrusion die for a magnesium alloy hollow profile of this shape, so as to realize the lightweight application of magnesium alloys in new energy vehicles.

[0006] The present invention provides a new energy vehicle battery tray magnesium profile plane shunt combined die, characterized in that it comprises: an upper die, a lower die, a positioning pin and a connecting bolt;

[0007] Positions corresponding to the upper die and the lower die are provided with positioning holes and bolt holes, the positioning pin is arranged in the positioning hole, the positioning pin is used to connect the upper die and the lower die, the connecting bolt is arranged in the bolt hole, and the connecting bolt is used to fix the upper die and the lower die;

[0008] The upper mold is provided with a feed port, a diverter hole, a diverter bridge and a mold core. There are five diverter holes, the diverter holes are connected to the feed port, the diverter bridge is provided between the diverter holes, the diverter bridge is used to separate the diverter holes, and the mold core is provided at the discharge end of the diverter bridge;

[0009] The lower die comprises a welding chamber, a die hole, a working belt and a discharge port, the welding chamber is communicated with the diverter hole, the end surface of the welding chamber is arranged at the die hole corresponding to the die core, the working belt is communicated with the diverter hole, and the discharge port is arranged at the outlet of the working belt;

[0010] The side wall of the feed port gradually expands from top to bottom, and the expansion angle formed by the left and right side surfaces of the feed port and the axis is 3 to 6 degrees.

[0011] Preferably, the mold is used in conjunction with an extrusion barrel, the outer diameters of the upper and lower dies are 280 mm, the thicknesses of the upper and lower dies are 100 mm, the diameter of the extrusion barrel is 180 mm, the feed port diameter is smaller than the extrusion barrel diameter, and the difference between the feed port diameter and the extrusion barrel diameter is 6 mm-10 mm.

[0012] Preferably, the diverter bridge is in a fan-shaped and / or rectangular shape, and the cross-sectional areas of the diverter holes are the same.

[0013] Preferably, the diverter bridge is a double-cone structure, the upper cross-section of the diverter bridge is in a shape that changes from small to large, the middle cross-section of the diverter bridge is in a vertical shape, and the lower cross-section of the diverter bridge is in a shape that changes from large to small.

[0014] Preferably, the diverter bridge comprises a transverse diverter bridge, a longitudinal diverter bridge and a V-shaped diverter bridge which are arranged alternately, and the height of the longitudinal diverter bridge is greater than the height of the transverse diverter bridge and the V-shaped diverter bridge;

[0015] The transverse shunt bridges and the longitudinal shunt bridges are arranged alternately;

[0016] The V-shaped shunt bridge is arranged below the transverse shunt bridge, the V-shaped shunt bridge is arranged in an inverted V shape, and the top of the V-shaped shunt bridge is connected to the bottom of the longitudinal shunt bridge.

[0017] Preferably, the welding chamber is a butterfly-shaped welding chamber, and the height of the welding chamber is 18 mm.

[0018] Preferably, the discharge port is provided with a primary empty knife connected to the working belt and a secondary empty knife connected to the primary empty knife.

[0019] Preferably, the upper die and the lower die are provided with matching stoppers, and the upper die and the lower die are combined through the stoppers.

[0020] Preferably, the side wall of the welding chamber gradually narrows from top to bottom.

[0021] Preferably, the extrusion speed of the extrusion barrel is 0.6 mm / s, the temperature of the extrusion barrel is 420°C, and the temperature of the mold is 450°C.

[0022] Compared with the prior art, the invention has the beneficial effect that it is used for the extrusion manufacturing of magnesium alloy profiles for battery trays of new energy vehicles. By manufacturing magnesium alloy battery trays with good materials instead of aluminum alloys, it is beneficial to directly promote the lightweight development of new energy vehicles, and this mold is specifically for the profile style of magnesium alloy battery trays. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0024] Figure 1 It is a structural schematic diagram of a magnesium profile plane shunt combination die for a new energy vehicle battery tray of the present invention.

[0025] Figure 2 1. are a top view and a bottom view of an upper mold in an embodiment of the present invention;

[0026] Figure 3 2 are a top view and a bottom view of the lower mold in an embodiment of the present invention.

[0027] In the figure: 1. upper die; 11. feed port; 12. diverter hole; 13. diverter bridge; 131. horizontal diverter bridge; 132. longitudinal diverter bridge; 133. V-shaped diverter bridge; 14. mold core; 2. lower die; 21. welding chamber; 22. die hole; 23. working belt; 24. discharge port; 25. first-level empty knife; 26. second-level empty knife; 3. positioning pin; 31. positioning hole; 4. connecting bolt; 41. bolt hole; 5. stopper. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0029] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0030] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0031] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 indirectly connected 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 this application can be understood according to specific circumstances.

[0032] like Figure 1-Figure 3 As shown, the present invention provides a new energy vehicle battery tray magnesium profile plane shunt combined die, including: an upper die 1, a lower die 2, a positioning pin 3 and a connecting bolt 4;

[0033] Positioning holes 31 and bolt holes 41 are provided at corresponding positions of the upper die 1 and the lower die 2. The positioning pin 3 is provided in the positioning hole 31. The positioning pin 3 is used to connect the upper die 1 and the lower die 2. The connecting bolt 4 is provided in the bolt hole 41. The connecting bolt 4 is used to fix the upper die 1 and the lower die 2.

[0034] The upper mold 1 is provided with a feed port 11, a diverter hole 12, a diverter bridge 13 and a mold core. Five diverter holes 12 are provided. The diverter holes 12 are connected to the feed port 11. The diverter bridge 13 is provided between the diverter holes 12. The diverter bridge 13 is used to separate the diverter holes 12. The mold core is provided at the discharge end of the diverter bridge 13.

[0035] The lower die 2 includes a welding chamber 21, a die hole 22, a working belt 23 and a discharge port 24. The welding chamber 21 is connected to the diverter hole 12. The end surface of the welding chamber 21 is arranged at the die hole 22 corresponding to the die core. The working belt 23 is connected to the diverter hole 12. The discharge port 24 is arranged at the outlet of the working belt 23.

[0036] The side wall of the feed opening 11 gradually expands from top to bottom, and the expansion angle formed by the left and right side surfaces of the feed opening 11 and the axis is 3 to 6 degrees.

[0037] The mold design of the present invention is used to improve production efficiency and product quality while reducing material waste. The mold is mainly composed of an upper mold, a lower mold, a positioning pin and a connecting bolt. The upper mold and the lower mold are the main components of the mold, and positioning holes and bolt holes are respectively provided at their corresponding positions. The positioning pin is arranged in the positioning hole to ensure the precise alignment and connection of the upper mold and the lower mold. The connecting bolt is installed in the bolt hole to firmly fix the upper mold and the lower mold together to ensure the stability and durability of the mold during the production process.

[0038] The upper mold is specially designed with a feed port, diverter holes, diverter bridges and a mold core. There are five diverter holes, which are connected to the feed port to ensure that the material can be evenly distributed to each diverter hole. The diverter bridge is set between the diverter holes to separate the diverter holes and prevent the materials from interfering with each other during the diversion process. The mold core is located at the discharge end of the diverter bridge to form the shape of the final product.

[0039] The lower die part includes a welding chamber, a die hole, a working belt and a discharge port. The welding chamber is connected to the diverter hole, and its end face is provided with a die hole corresponding to the die core. The working belt is connected to the diverter hole to guide the material to flow to the die hole. The discharge port is set at the outlet end of the working belt to facilitate the smooth discharge of the magnesium profile after forming.

[0040] In order to optimize the fluidity and filling effect of the material, the side wall of the feed port is designed to expand gradually from top to bottom. The expansion angle formed by the left and right sides of the feed port and the axis is 3 to 6 degrees. This design helps to reduce the resistance of the material flow, improve the filling efficiency, and reduce the pressure loss of the material during the diversion process.

[0041] Therefore, the new energy vehicle battery tray magnesium profile plane diversion combination mold of the present invention realizes efficient control of the magnesium profile production process through precise design and structural optimization, ensures product quality, and reduces production costs.

[0042] This solution designs the mold based on the existing automotive battery tray profile.

[0043] In some embodiments of the present application, the mold is used in conjunction with an extrusion barrel, the outer diameter of the upper mold 1 and the lower mold 2 is 280 mm, the thickness of the upper mold 1 and the lower mold 2 is 100 mm, the diameter of the extrusion barrel is 180 mm, the diameter of the feed port 11 is smaller than the diameter of the extrusion barrel, and the difference between the diameter of the feed port 11 and the diameter of the extrusion barrel is 6 mm-10 mm.

[0044] In the cooperation between the mold and the extrusion barrel, the design of the upper mold 1 and the lower mold 2 is crucial. Their outer diameter is set to 280mm to ensure a close fit with the extrusion barrel. At the same time, the thickness of the upper mold 1 and the lower mold 2 is 100mm, which can provide sufficient strength and stability to withstand the pressure and heat generated during the extrusion process.

[0045] As the core part of the die system, the extrusion barrel has a diameter of 180mm, which provides the necessary space for the extrusion of the material. The inner diameter of the extrusion barrel must match the outer diameters of the upper and lower dies to ensure that the material can pass through the die smoothly during the extrusion process.

[0046] The feed port 11 is the passage for the material to enter the die. Its diameter is designed to be smaller than the diameter of the extrusion barrel. This is done to ensure that the material can be properly compressed and pre-treated before entering the die. The difference between the diameter of the feed port 11 and the diameter of the extrusion barrel is 6mm-10mm. This difference range can ensure that the material can obtain sufficient pressure when entering the die, while avoiding material damage or blockage caused by excessive pressure. By accurately controlling the size of the feed port, the extrusion process can be optimized, and the extrusion efficiency and product quality can be improved.

[0047] In this embodiment, it is particularly important for the mold to determine the center position of the profile and the mold. In general, the extrusion center is the geometric center of gravity of the profile, that is, the profile center coincides with the mold center, and is determined by referring to the pressure pad and the extruder outlet size. The purpose is to make the profile easy to extrude and facilitate discharging as the fundamental principle.

[0048] It is understandable that the circumscribed circle diameter of the battery tray profile is about 130mm. In order to ensure the quality of the profile, the impurities on the outermost layer of the ingot cannot be squeezed into the profile during extrusion. Generally, the circumscribed circle diameter of the profile must be smaller than the diameter of the extrusion barrel. The profile is required to work under an 1800t extruder. Considering the size of the profile, the outer diameter of the mold is 280mm, and the upper mold 1 and the lower mold 2 are both 100mm thick. The general design principle of the extrusion barrel diameter is: D mold = 1.3~1.5D barrel, so the design extrusion barrel diameter is 180mm, and the diameter of the feed port 11 is 6~10mm inward of the extrusion barrel.

[0049] In some embodiments of the present application, the shape of the diverter bridge 13 is fan-shaped and / or rectangular, and the cross-sectional areas of the diverter holes 12 are the same.

[0050] In this embodiment, the diverter hole 12 is arranged around the diverter bridge 13. The diverter hole 12 needs to be designed under the principle of equal diverter ratio. The shape of the diverter bridge 13 is mostly fan-shaped and rectangular. In addition, in order to prevent the extrusion die from having too high pressure at the core during production, the outlet area of ​​the diverter hole 12 should be slightly larger than the inlet area to reduce the internal pressure of the die and prevent the die core from breaking. The diverter bridge 13 mainly plays the role of cutting and guiding the bar metal, so its structural size has an important influence on the flow and welding of the metal. At the same time, the diverter bridge 13 is located between the diverter holes 12 and is the support of the diverter holes 12, so the design of the diverter bridge 13 is also related to the quality of the mold. The main parameters of the diverter bridge 13 are its width, height and cross-sectional shape, which also determine the mold strength of the upper mold 1. The width of the diverter bridge 13 and the area of ​​the diverter hole 12 determine the flow rate of the metal and the number of profile welds, while the height of the diverter bridge 13 affects the extrusion force and welding quality of the metal. The width of the mold bridge is designed to be 20-24 mm. The total thickness of the upper mold 1 is 100 mm, the outlet sinking bridge is designed to be 10 mm, and the height of the diverter bridge 13 is 90 mm.

[0051] In some embodiments of the present application, the diverter bridge 13 is a double-conical structure, the upper cross-section of the diverter bridge 13 is in a shape that gradually increases from small to large, the middle cross-section of the diverter bridge 13 is in a vertical shape, and the lower cross-section of the diverter bridge 13 is in a shape that gradually decreases from large to small.

[0052] In some embodiments of the present application, the diverter bridge 13 includes a transverse diverter bridge 131, a longitudinal diverter bridge 132 and a V-shaped diverter bridge 133 arranged alternately, and the height of the longitudinal diverter bridge 132 is greater than the height of the transverse diverter bridge 131 and the V-shaped diverter bridge 133;

[0053] The transverse shunt bridges 131 and the longitudinal shunt bridges 132 are arranged alternately;

[0054] The V-shaped diverter bridge 133 is disposed below the transverse diverter bridge 131 . The V-shaped diverter bridge 133 is disposed in an inverted V shape, and the top of the V-shaped diverter bridge 133 is connected to the bottom of the longitudinal diverter bridge 132 .

[0055] In this embodiment, the diverter bridge 13 is a double cone structure, which can reduce the metal deformation resistance and improve the metal flow. At the same time, there are fewer metal dead zones under the bridge and the weld quality is good. When selecting, the above factors should be considered comprehensively, including both the profile quality and the mold strength.

[0056] In some embodiments of the present application, the welding chamber 21 is a butterfly-shaped welding chamber 21 , and the height of the welding chamber 21 is 18 mm.

[0057] In this embodiment, the welding chamber 21 is where the metal gathers and welds. Its shape, size and inlet mode have a great influence on the metal flow, welding quality and extrusion force. The commonly used cross-sectional shapes of the welding chamber 21 are circular and butterfly-shaped. When a circular welding chamber 21 is used, a very obvious dead zone will be generated between the diverter holes 12, which not only increases the extrusion force, but also affects the quality of the weld. The disc-shaped welding chamber 21 is conducive to eliminating this dead zone and improving the quality of the weld. At the same time, the root of the diverter bridge 13 corresponding to the disc-shaped welding chamber 21 can also be made into a boss to improve metal flow and reduce extrusion resistance. The welding chamber 21 is a butterfly-shaped welding chamber 21. In order to obtain a high-strength weld, a high hydrostatic pressure that exceeds the yield strength of the extruded metal by 10 to 20 times must be established in the welding chamber 21. With the increase of wall thickness and the increase of the cross-sectional area of ​​the hollow profile, the depth of the welding cavity also increases. Generally, the depth of the welding chamber 21 is greater than half the width of the diverter bridge 13. For small and medium-sized extruders, the depth of the welding chamber 21 can be 10 to 20 mm or equal to 6 to 10 times the wall thickness. In most cases, the depth of the welding chamber 21 is selected based on the diameter of the extruded part and with reference to the wall thickness of the profile. Therefore, the height of the profile welding chamber 21 is designed to be 18 mm.

[0058] In some embodiments of the present application, the discharge port 24 is provided with a primary empty knife 25 connected to the working belt 23 and a secondary empty knife 26 connected to the primary empty knife 25 .

[0059] It is understandable that the working belt 23 is the final forming part of the profile product, and the reasonable setting of the length of the working belt 23 is an important guarantee for the profile to evenly flow out of the die hole 22 and be smoothly formed. In this mold, the changing part of the working belt 23 is connected by an oblique line segment. The transition mode of the working belt 23 is an inflection point transition mode.

[0060] In some embodiments of the present application, the upper mold 1 and the lower mold 2 are provided with matching stoppers 5 , and the upper mold 1 and the lower mold 2 are combined via the stoppers 5 .

[0061] The upper mold 1 and the lower mold 2 are provided with matching stoppers 5, and the upper mold 1 and the lower mold 2 are combined by the stoppers 5. The stoppers 5 are a common mold structure design, which is used to ensure that the upper and lower molds 2 can be accurately aligned when closed to prevent misalignment. During the mold manufacturing process, the stoppers 5 of the upper mold 1 and the lower mold 2 must be strictly matched to ensure the closing accuracy of the mold and the molding quality of the product. Through the cooperation of the stoppers 5, the upper and lower molds 2 can fit tightly to form a closed cavity, so as to produce parts that meet the design requirements in injection molding, die casting or other molding processes. The design and processing accuracy of the stoppers 5 directly affect the service life and production efficiency of the mold.

[0062] In some embodiments of the present application, the sidewall of the welding chamber 21 gradually narrows from top to bottom.

[0063] In some embodiments of the present application, the extrusion speed of the extrusion barrel is 0.6 mm / s, the temperature of the extrusion barrel is 420°C, and the temperature of the mold is 450°C.

[0064] When the present application is in use, the billet temperature is 380 degrees, the mold temperature is 450 degrees, the extrusion barrel temperature is 420 degrees, the push rod speed of the extruder is 0.6 mm / s, and the profile is air-cooled. The magnesium alloy ingot heated to the specified temperature is placed in the extrusion barrel. Under the action of the press, the extrusion rod gradually deforms the ingot and flows into the extrusion die cavity, and finally passes through the die hole 22 to form the desired profile. During the extrusion process, the alloy ingot is in a three-dimensional compressive stress state. Under this stress and strain condition, the plasticity of the magnesium alloy can be fully exerted, and large plastic deformation can be performed.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A new energy vehicle battery tray magnesium profile plane shunt combination die, characterized in that: include: Upper die, lower die, locating pins and connecting bolts; Positions corresponding to the upper die and the lower die are provided with positioning holes and bolt holes, the positioning pin is arranged in the positioning hole, the positioning pin is used to connect the upper die and the lower die, the connecting bolt is arranged in the bolt hole, and the connecting bolt is used to fix the upper die and the lower die; The upper mold is provided with a feed port, a diverter hole, a diverter bridge and a mold core. There are five diverter holes, the diverter holes are connected to the feed port, the diverter bridge is provided between the diverter holes, the diverter bridge is used to separate the diverter holes, and the mold core is provided at the discharge end of the diverter bridge; The lower die comprises a welding chamber, a die hole, a working belt and a discharge port, the welding chamber is communicated with the diverter hole, the end surface of the welding chamber is arranged at the die hole corresponding to the die core, the working belt is communicated with the diverter hole, and the discharge port is arranged at the outlet of the working belt; The side wall of the feed port gradually expands from top to bottom, and the expansion angle formed by the left and right side surfaces of the feed port and the axis is 3 to 6 degrees.

2. The magnesium profile plane shunt assembly die for the battery tray of new energy vehicles according to claim 1 is characterized in that: The mold is used in conjunction with an extrusion barrel, the outer diameters of the upper and lower dies are 280 mm, the thicknesses of the upper and lower dies are 100 mm, the diameter of the extrusion barrel is 180 mm, the feed port diameter is smaller than the extrusion barrel diameter, and the difference between the feed port diameter and the extrusion barrel diameter is 6 mm-10 mm.

3. The magnesium profile plane shunt assembly die for the battery tray of new energy vehicles according to claim 1, characterized in that: The diverter bridge is in a fan-shaped and / or rectangular shape, and the cross-sectional areas of the diverter holes are the same.

4. The magnesium profile plane shunt assembly die for the new energy vehicle battery tray according to claim 1, characterized in that: The diverter bridge is a double-cone structure, the upper cross-section of the diverter bridge is in a shape that changes from small to large, the middle cross-section of the diverter bridge is in a vertical shape, and the lower cross-section of the diverter bridge is in a shape that changes from large to small.

5. The magnesium profile plane shunt assembly die for the battery tray of new energy vehicles according to claim 1, characterized in that: The diverter bridges include transverse diverter bridges, longitudinal diverter bridges and V-shaped diverter bridges arranged alternately, and the height of the longitudinal diverter bridges is greater than the heights of the transverse diverter bridges and the V-shaped diverter bridges; The transverse shunt bridges and the longitudinal shunt bridges are arranged alternately; The V-shaped shunt bridge is arranged below the transverse shunt bridge, the V-shaped shunt bridge is arranged in an inverted V shape, and the top of the V-shaped shunt bridge is connected to the bottom of the longitudinal shunt bridge.

6. The magnesium profile plane shunt assembly die for the battery tray of new energy vehicles according to claim 1, characterized in that: The welding chamber is a butterfly-shaped welding chamber, and the height of the welding chamber is 18 mm.

7. The magnesium profile plane shunt assembly die for the battery tray of new energy vehicles according to claim 1, characterized in that: The discharge port is provided with a primary empty knife connected to the working belt and a secondary empty knife connected to the primary empty knife.

8. The magnesium profile plane shunt assembly die for the battery tray of new energy vehicles according to claim 1, characterized in that: The upper die and the lower die are provided with matching stoppers, and the upper die and the lower die are combined through the stoppers.

9. The magnesium profile plane shunt assembly die for the battery tray of new energy vehicles according to claim 1, characterized in that: The side wall of the welding chamber gradually narrows from top to bottom.

10. The magnesium profile plane shunt assembly die for the battery tray of new energy vehicles according to claim 2, characterized in that: The extrusion speed of the extrusion barrel is 0.6 mm / s, the temperature of the extrusion barrel is 420°C, and the temperature of the mold is 450°C.

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