Metal composite part forming jig

Abstract

The utility model relates to the technical field of metal composite parts, and discloses a metal composite part forming jig which comprises an upper die jig and a lower die jig, a lower pressing block is arranged on the upper die jig, and the lower die jig is provided with a placing position and a forming block. A forming cavity for accommodating molten metal is formed in the forming block; the first metal piece seals the bottom opening of the forming cavity, the lower pressing block abuts against the molten metal till the molten metal is cooled to form a second metal piece, and the first metal piece and the second metal piece are combined to form an integrated metal composite piece; the melting point of the second metal piece is not higher than that of the first metal piece; the metal composite part forming jig is applied to forming and manufacturing of metal composite parts, traditional procedures such as punching and upsetting are omitted, the material utilization rate can be increased, the manufacturing cost can be reduced, the manufacturing efficiency can be improved, and the forming efficiency is higher.

Description

Technical Field

[0001] The utility model patent relates to the technical field of metal composite parts, specifically, to a metal composite part forming jig. Background Art

[0002] Metal composite parts are products made by combining two metal layers of different materials into one, such as the copper-aluminum composite pole in a battery. During the forming process of metal composite parts, the metal composite sheet is usually directly processed by punching, piercing and other processing to obtain the metal composite parts. A lot of waste is generated during punching, resulting in low material utilization and a certain defective rate, which easily leads to a high forming cost of the metal composite parts. Utility Model Content

[0003] The utility model aims to provide a metal composite part forming jig, aiming to solve the problem of high metal composite part forming cost in the prior art.

[0004] The utility model is implemented as follows: a metal composite part forming jig comprises an upper mold jig and a lower mold jig arranged below the upper mold jig, the upper mold jig is provided with a lower pressing block, the lower mold jig has a placement position for placing a first metal part and a forming block arranged on the top of the placement position; the forming block has a forming cavity for accommodating molten metal, the forming cavity passes through the top of the forming block to form a top opening, and the forming cavity passes through the bottom of the forming block to form a bottom opening;

[0005] The first metal part closes the bottom opening of the molding cavity, and the pressing block is pressed down into the molding cavity through the top opening, pressing the molten metal until the molten metal cools to form a second metal part. The first metal part and the second metal part are combined to form an integrated metal composite part; the melting point of the second metal part is not higher than the melting point of the first metal part.

[0006] Furthermore, the lower pressing block is slidably disposed on the upper mold fixture along a first direction, and the upper mold fixture is further provided with an upper elastic structure, and the upper elastic structure has an elastic pressure acting on the lower pressing block along the first direction.

[0007] Furthermore, the upper mold fixture includes a positioning block, a positioning cavity is provided in the positioning block, and the lower pressing block is slidably placed in the positioning cavity; the lower portion of the lower pressing block has a pressing column extending downward and entering the molding cavity to press the molten metal, and the pressing column moves from top to bottom to pass through the bottom of the positioning block to form a passing section;

[0008] The upper elastic structure includes an upper spring whose axial direction is the same as the first direction, one end of the upper spring is connected to the lower pressure block, and the other end of the upper spring is connected to the positioning cavity; when the penetrating section enters the molding cavity to press the molten metal, the lower pressure block moves elastically upward and the upper spring is compressed.

[0009] Furthermore, the top of the positioning block is covered with an upper cover plate, the upper cover plate covers the top of the positioning cavity, and the end of the upper spring abuts against the upper cover plate.

[0010] Furthermore, a lower baffle plate is provided below the positioning block and moves up and down relative to the positioning block, and the protruding section of the pressure column passes through the lower baffle plate; the lower baffle plate and the bottom of the positioning block are arranged at an interval to form an elastic interval, and a lower elastic structure is provided between the lower baffle plate and the positioning block, and the lower elastic structure has an elastic pressure acting on the lower baffle plate along a first direction.

[0011] Furthermore, the lower elastic structure includes a lower spring, which is arranged in the elastic interval, one end of the lower spring is connected to the positioning block, and the other end of the lower spring is connected to the lower baffle.

[0012] Furthermore, the lower baffle is provided with a guide column along the first direction, and the top of the guide column is movably inserted into the positioning block; and the lower spring is sleeved on the guide column.

[0013] Furthermore, the lower mold fixture includes a fixed seat, and a base detachably connected to the fixed seat is provided on the top of the fixed seat; a fixing groove is provided on the base, and the lower part of the fixing groove forms the placement position, and the molding block is detachably connected to the base.

[0014] Furthermore, a side baffle is connected to the outer side of the positioning block, the upper part of the side baffle is connected to the positioning block, and the lower part of the side baffle extends downward, is movably located on the outer side of the base, and abuts against the base.

[0015] Furthermore, the first metal piece is a copper block, and the molten metal is molten aluminum; and / or the lower mold fixture is provided with a heating structure for heating the first metal piece.

[0016] Compared with the prior art, the metal composite forming jig provided by the utility model, when used in the forming and manufacturing of metal composite parts, eliminates the traditional punching, piercing and other processes, and can improve the material utilization rate to reduce the manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the metal composite forming jig provided by the utility model;

[0018] Figure 2 It is a three-dimensional exploded schematic diagram of the metal composite part forming jig provided by the utility model;

[0019] Figure 3 It is a cross-sectional schematic diagram of the metal composite part forming jig provided by the utility model;

[0020] In the figure: cover plate 100, positioning block 101, positioning cavity 1011, lower baffle plate 102, side baffle plate 103, lower spring 105, guide column 106; fixing seat 200, base 201, fixing groove 2011; lower pressing block 300, upper spring 301, pressing column 302; forming block 400. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0022] The implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0023] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present utility model, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is 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 direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0024] Reference Figure 1-3 As shown, it is a preferred embodiment provided by the utility model.

[0025] The metal composite part forming jig includes an upper mold jig and a lower mold jig, wherein the lower mold jig is arranged below the upper mold jig. A lower pressing block 300 is arranged on the upper mold jig, and the lower mold jig has a placement position for placing a first metal part and a forming block 400 arranged on the top of the placement position. When the first metal part is placed on the placement position, the forming block 400 is placed on the first metal part.

[0026] The forming block 400 has a forming cavity for accommodating molten metal. The forming cavity passes through the top of the forming block 400 to form a top opening. The forming cavity passes through the bottom of the forming block 400 to form a bottom opening. When the forming block 400 is placed on the first metal part, the first metal part closes the bottom opening.

[0027] The first metal part closes the bottom opening of the molding cavity, and the lower pressing block 300 is pressed down into the molding cavity through the top opening, pressing the molten metal until the molten metal cools to form a second metal part. The first metal part and the second metal part are combined to form an integrated metal composite part, and the melting point of the second metal part is not higher than the melting point of the first metal part.

[0028] The metal composite forming jig provided above is used in the forming and manufacturing of metal composite parts, eliminating traditional punching, piercing and other processes, which can improve material utilization, reduce manufacturing costs, and improve manufacturing efficiency.

[0029] And / or the lower mold fixture is provided with a heating structure for heating the first metal part, integrating the heating process and the molding process together, and the molding efficiency is higher; the first metal part is in a heated state and is composite-molded with the metal liquid, the movement rate of metal atoms is stable, and the eutectic layer can be formed faster and better, so that the combination between the first metal part and the second metal part is more stable, and the structure of the metal composite part is stable.

[0030] The metal composite forming jig is used in the copper-aluminum composite pole forming, the first metal part is a copper block, the metal liquid is aluminum liquid, and the second metal part is an aluminum block, which has the following technical advantages:

[0031] 1) Cost reduction: It can realize the composite forming of copper-aluminum composite poles, eliminating the traditional punching, pier pressing and other processing procedures, reducing manufacturing costs and improving manufacturing efficiency;

[0032] 2) Higher efficiency: The heating structure is used to heat the copper block, and the traditional copper block heating process and the pole composite forming process are integrated, which is more efficient;

[0033] 3) Stable performance: The aluminum liquid is compounded when the copper block is heated, the movement rate of copper atoms is stable, the eutectic layer can be formed better and faster, and the bonding layer is stable.

[0034] In this embodiment, the forming of a copper-aluminum composite pole by a metal composite forming jig is taken as an example. Of course, the metal composite forming jig is also applicable to composite forming between different metal parts of other types of products.

[0035] In some embodiments, the lower pressing block 300 is slidably arranged in the upper mold fixture along the first direction, and an upper elastic structure is provided in the upper mold fixture. The upper elastic structure is connected to the upper part of the lower pressing block 300, and the upper elastic structure has elastic pressure acting on the lower pressing block 300 along the first direction.

[0036] When the lower pressing block 300 moves downward to press the molten metal, under the action of the upper elastic structure, the lower pressing block 300 elastically moves upward to buffer the downward pressure of the lower pressing block 300. After the lower pressing block 300 is released from the pressure on the molten metal, under the action of the upper elastic structure, the lower pressing block 300 moves downward to reset.

[0037] In the actual production process, the upper mold jig is fixed on the upper mold mounting plate of the molding equipment, and the lower mold jig is fixed on the lower mold mounting plate of the molding equipment. The first metal part is placed in the placement position, and the heated molten metal is poured into the molding cavity. Then, the upper mold jig is pressed downward toward the lower mold jig, and the lower pressing block 300 is pressed against the molten metal until the molten metal is cooled to form a second metal part. Then, the first metal part and the second metal part are combined to form an integrated metal composite part.

[0038] In addition, by providing an upper elastic structure, when the lower pressing block 300 contacts the molten metal downward, the lower pressing block 300 will elastically move upward, which has the effect of buffering the downward movement of the lower pressing block 300 and reducing the risk of splashing of the molten metal.

[0039] The upper elastic structure is connected to the upper part of the lower pressing block 300 and extends upward to the top of the lower pressing block 300, which is convenient for the arrangement of the upper elastic structure. The upper elastic structure and the pressure column 302 are arranged up and down, which is beneficial to the structural arrangement and can achieve better elastic buffering.

[0040] In some embodiments, the lower portion of the lower pressing block 300 has a downwardly extending pressure column 302. After the lower pressing block 300 moves downward, the pressure column 302 enters the molding cavity through the top opening and presses the molten metal in the molding cavity downward, thereby facilitating the coordination between the lower pressing block 300 and the molding block 400, and achieving better entry into the molding cavity, thereby achieving efficient pressure on the molten metal.

[0041] In this embodiment, the upper mold fixture includes a positioning block 101, a positioning cavity 1011 is provided in the positioning block 101, and the lower pressing block 300 is slidably placed in the positioning cavity 1011; the lower part of the lower pressing block 300 has a pressure column 302 extending downward and entering the molding cavity to press the metal liquid, and the pressure column 302 moves from top to bottom to pass through the bottom of the positioning block 101 to form a passing section.

[0042] The upper elastic structure includes an upper spring 301, and the axial direction of the upper spring 301 is the same as the first direction. One end of the upper spring 301 is connected to the lower pressing block 300, and the other end of the upper spring 301 is connected to the positioning cavity 1011; when the passing section enters the molding cavity to press the molten metal, the lower pressing block 300 elastically moves upward, and the upper spring 301 is compressed.

[0043] By setting a positioning cavity 1011 inside the positioning block 101, the arrangement of the lower pressing block 300 is facilitated, and the lower pressing block 300 moves up and down in the positioning cavity 1011; an upper spring 301 is arranged between the lower pressing block 300 and the positioning cavity 1011, and the upper spring 301 is arranged longitudinally, and it can maintain the longitudinal movement direction during the elastic buffering process of guiding the lower pressing block 300.

[0044] In some embodiments, the top of the positioning block 101 is covered with an upper cover plate 100, which covers the top of the positioning cavity 1011. The end of the upper spring 301 abuts against the upper cover plate 100. By arranging the upper cover plate 100, the assembly of the positioning block 101 and the lower pressure block 300 is facilitated.

[0045] A lower baffle plate 102 is provided below the positioning block 101 and moves up and down relative to the positioning block 101. The protruding section of the pressure column 302 passes through the lower baffle plate 102. The lower baffle plate 102 and the bottom of the positioning block 101 are arranged at an interval to form an elastic interval. A lower elastic structure is provided between the lower baffle plate 102 and the positioning block 101. The lower elastic structure has an elastic pressure acting on the lower baffle plate 102 along the first direction.

[0046] When the lower pressing block 300 moves downward, the lower baffle 102 first abuts against the forming block 400 to play a positioning role and prevent the lower pressing block 300 from directly colliding with the forming block 400; when the lower pressing block 300 continues to move downward, the lower elastic structure can buffer the impact and reduce deformation or wear on the forming block 400.

[0047] In some embodiments, the lower elastic structure includes a lower spring 105, which is arranged in the elastic interval, one end of the lower spring 105 is connected to the positioning block 101, and the other end of the lower spring 105 is connected to the lower baffle 102. The lower spring 105 is arranged longitudinally, which can maintain the longitudinal nature of the elastic buffer and reduce the occurrence of horizontal misalignment and movement.

[0048] The lower baffle 102 is provided with a guide column 106 along the first direction, the top of the guide column 106 is movably inserted into the positioning block 101, and the lower spring 105 is sleeved on the guide column 106. The guide column 106 can guide the compression deformation of the lower spring 105 and maintain the longitudinal elastic buffer of the lower spring 105.

[0049] In some embodiments, the lower mold fixture includes a fixed seat 200, a base 201 is provided on the top of the fixed seat 200, the base 201 and the top of the fixed seat 200 are detachably connected, a fixing groove 2011 is provided on the base 201, and the lower part of the fixing groove 2011 forms the above-mentioned placement position, and the molding block 400 is detachably connected to the base 201.

[0050] In order to facilitate the detachable connection between the forming block 400 and the base 201, the lower part of the forming block 400 is embedded and fixed in the fixing groove 2011. By arranging the fixing seat 200, the position of the entire lower mold fixture can be easily fixed. By arranging the base 201 and fixing the forming block 400 in the fixing groove 2011, the position of the forming block 400 can be stabilized and easy to install.

[0051] In addition, the base 201 can be disassembled relative to the fixing base 200. After the metal composite is formed, the base 201 and the fixing base 200 are relatively disassembled to facilitate taking out the metal composite.

[0052] The outer side of the positioning block 101 is connected to a side baffle 103, the upper part of the side baffle 103 is connected to the outer side of the positioning block 101, and the lower part of the side baffle 103 extends downward, is movably located on the outer side of the base 201, and abuts against the base 201. The arrangement of the side baffle 103 can prevent the base 201 from being translated due to the downward pressure when the upper mold fixture is pressed down, resulting in the size deviation of the metal composite part.

[0053] Since the metal fixture will expand and contract greatly when heated to a high temperature (600°C), its positioning accuracy is insufficient when it is repeatedly used. In this embodiment, the material of the forming block 400, the base 201, the fixing seat 200 and the lower pressing block 300 is high temperature resistant graphite, which can maintain small thermal expansion and contraction under high temperature conditions.

[0054] The upper cover plate 100 , the guide column 106 , the positioning block 101 , the lower baffle plate 102 and the side baffle plate 103 are made of stainless steel, and the surface thereof is nickel-plated to prevent the stainless steel from being oxidized under high temperature and high pressure conditions.

[0055] In this embodiment, a combination of stainless steel and graphite is adopted, which combines the firmness of metal materials and the high temperature resistance and low deformation of graphite, so that the metal composite parts can be formed during cooling, reducing the processing steps such as punching and pressing. At the same time, the first metal part is preheated to a certain temperature by heating the lower mold fixture separately, and there is no need to heat the first metal part separately, thereby reducing the transportation action of heating the first metal part.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A metal composite forming jig, characterized in that: The invention comprises an upper die jig and a lower die jig arranged below the upper die jig, wherein a lower pressing block (300) is provided on the upper die jig, and the lower die jig comprises a placement position for placing a first metal part and a forming block (400) arranged on the top of the placement position; the forming block (400) comprises a forming cavity for accommodating molten metal, the forming cavity passes through the top of the forming block (400) to form a top opening, and the forming cavity passes through the bottom of the forming block (400) to form a bottom opening; The first metal part closes the bottom opening of the molding cavity, the pressing block (300) is pressed down into the molding cavity through the top opening, pressing the molten metal until the molten metal cools to form a second metal part, and the first metal part and the second metal part are combined to form an integrated metal composite part; the melting point of the second metal part is not higher than the melting point of the first metal part.

2. The metal composite forming jig according to claim 1, characterized in that: The lower pressing block (300) is slidably arranged on the upper die fixture along a first direction, and the upper die fixture is further provided with an upper elastic structure, wherein the upper elastic structure has an elastic pressure acting on the lower pressing block (300) along the first direction.

3. The metal composite forming jig according to claim 2, characterized in that: The upper mold fixture comprises a positioning block (101), a positioning cavity (1011) is provided in the positioning block (101), and the lower pressing block (300) is slidably placed in the positioning cavity (1011); the lower portion of the lower pressing block (300) has a pressing column (302) extending downward and entering the molding cavity to press the molten metal, and the pressing column (302) moves from top to bottom to pass through the bottom of the positioning block (101) to form a passing section; The upper elastic structure comprises an upper spring (301) whose axial direction is the same as the first direction, one end of the upper spring (301) is connected to the lower pressing block (300), and the other end of the upper spring (301) is connected to the positioning cavity (1011); when the passing section enters the molding cavity to press the molten metal, the lower pressing block (300) elastically moves upward and the upper spring (301) is compressed.

4. The metal composite forming jig according to claim 3, characterized in that: The top of the positioning block (101) is covered with an upper cover plate (100), the upper cover plate (100) covers the top of the positioning cavity (1011), and the end of the upper spring (301) abuts against the upper cover plate (100).

5. The metal composite forming jig according to claim 3, characterized in that: A lower baffle plate (102) is provided below the positioning block (101) and is movable up and down relative to the positioning block (101); a protruding section of the pressure column (302) passes through the lower baffle plate (102); the lower baffle plate (102) and the bottom of the positioning block (101) are arranged at an interval to form an elastic interval; a lower elastic structure is provided between the lower baffle plate (102) and the positioning block (101); the lower elastic structure has an elastic pressure acting on the lower baffle plate (102) along a first direction.

6. The metal composite forming jig according to claim 5, characterized in that: The lower elastic structure comprises a lower spring (105), wherein the lower spring (105) is arranged in the elastic interval, one end of the lower spring (105) is connected to the positioning block (101), and the other end of the lower spring (105) is connected to the lower baffle (102).

7. The metal composite forming jig according to claim 6, characterized in that: The lower baffle (102) is provided with a guide column (106) along the first direction, and the top of the guide column (106) is movably inserted into the positioning block (101); the lower spring (105) is sleeved on the guide column (106).

8. The metal composite forming jig according to any one of claims 3 to 7, characterized in that: The lower mold fixture comprises a fixing seat (200), the top of the fixing seat (200) is provided with a base (201) detachably connected to the fixing seat (200); a fixing groove (2011) is provided on the base (201), the lower part of the fixing groove (2011) forms the placement position, and the molding block (400) is detachably connected to the base (201).

9. The metal composite forming jig according to claim 8, characterized in that: The outer side of the positioning block (101) is connected to a side baffle (103); the upper portion of the side baffle (103) is connected to the positioning block (101); the lower portion of the side baffle (103) extends downward, is movably located on the outer side of the base (201), and abuts against the base (201).

10. The metal composite forming jig according to any one of claims 1 to 7, characterized in that: The first metal piece is a copper block, and the molten metal is molten aluminum; and / or the lower mold fixture is provided with a heating structure for heating the first metal piece.

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