Metal continuous stamping die

Abstract

The utility model relates to the technical field of metal piece stamping, and discloses a metal continuous stamping die which comprises a lower die body and an upper die body which are matched with each other, a forming cavity is formed in the top of the lower die body, and an integrally-formed punch is arranged on the bottom face of the lower die body; the cooling cavity is formed in the bottom of the lower die body and used for cooling the lower die body, the two sides of the lower die body are fixedly connected with two water pipes used for water inflow and drainage respectively, and the water pipes are connected with the cooling cavity; the sealing plate is arranged at the bottom of the lower die body and used for sealing the cooling cavity, a sealing gasket is arranged at the top of the sealing plate, and the sealing plate is locked and fixed to the lower die body through a fastener; the flow dividing assembly is arranged in the cooling cavity and used for guiding and dispersing fluid passing through the cooling cavity, the cooling cavity is formed, water is fed into the cooling cavity through two water pipes, heat exchange between the lower die body and the fluid is achieved, high temperature of the lower die body caused by continuous punching is avoided, and adhesion of a plate and the lower die body is reduced; the temperature of the lower die body is controlled within a reasonable range, and the stamping precision is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of metal part stamping, in particular to a metal continuous stamping die. Background Art

[0002] Metal continuous stamping die is a die used for metal stamping, which realizes continuous stamping by repeatedly separating and closing the upper and lower die bodies.

[0003] The prior art discloses a metal continuous stamping die (publication number: CN115780652A), comprising a base, a support seat fixedly connected to the surface of the base, a lower die assembly disposed on the top of the support seat, and the lower die assembly comprising: a die bottom plate, the die bottom plate fixedly connected to the top of the support seat. The metal continuous stamping die, by starting the electric push rod, moves the lower pressing plate downward, so that the inclined wall of the wedge block presses the side wall of the side plate, so that the return spring is compressed, and the side plate is tightly fitted with the side wall of the die bottom plate under pressure to form a stamping cavity.

[0004] In the prior art, stamping is mainly achieved by extruding the sheet through the cooperation of a punch head and a die. However, continuous stamping dies are used frequently and for a long time. When the metal is extruded and deformed, a certain amount of heat will be generated. With continuous use, the heat accumulates, causing the temperature of the die to rise. In order to reduce damage to the die, it is necessary to stop the machine and cool it down. High temperature will also affect the accuracy of stamping, and there is a phenomenon of the sheet sticking to the die. Therefore, for continuous stamping dies, it is necessary to control the temperature of the die.

[0005] For this purpose, we propose a metal continuous stamping die. Utility Model Content

[0006] The utility model mainly solves the technical problem that repeated stamping easily causes high temperature of the die body, and provides a metal continuous stamping die.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme, a metal continuous stamping die, comprising:

[0008] A lower die body and an upper die body cooperate with each other, a forming cavity is provided on the top of the lower die body, and an integrally formed punch is provided on the bottom surface of the lower die body;

[0009] A cooling cavity is provided at the bottom of the lower mold body and is used to cool the lower mold body. Two water pipes for water inlet and outlet are fixedly connected to the two sides of the lower mold body, and the water pipes are connected to the cooling cavity;

[0010] A sealing plate is arranged at the bottom of the lower mold body and is used to seal the cooling cavity. A sealing gasket is arranged on the top of the sealing plate. The sealing plate is locked and fixed to the lower mold body by fasteners.

[0011] The flow distribution component is arranged in the cooling cavity and is used for guiding and dispersing the fluid passing through the cooling cavity.

[0012] As a preferred embodiment of the utility model, the diversion assembly is a plurality of first partition bodies arranged in the cooling cavity, the inner walls on both sides of the opposite sides of the lower mold body are fixedly connected to the plurality of first partition bodies, a gap is left between two adjacent first partition bodies, a notch is formed between the first partition body and the inner wall of the lower mold body, and the plurality of first partition bodies divide the cooling cavity into a serpentine curved flow channel.

[0013] As a preferred embodiment of the utility model, the first partition body forms a plate with the same height as the cooling cavity, one end of the first partition body is fixedly connected to the inner wall of the lower mold body, the other end of the first partition body forms a free end, and a gap is formed between the free end of the first partition body and the inner wall of the lower mold body.

[0014] As a preferred embodiment of the present invention, the flow splitter assembly is a plurality of second partition bodies arranged in the cooling cavity, and the second partition bodies divide the cooling cavity into funnel-shaped flow channels.

[0015] As a preferred embodiment of the utility model, the second partition body forms a plate-like structure with the same height as the cooling chamber, and multiple second partition bodies are fixedly connected to the inner walls on both sides of the lower mold body respectively. The second partition bodies on the inner walls on both sides of the lower mold body are distributed in an eight-shaped shape, and a groove is formed between two second partition bodies in symmetrical positions.

[0016] As a preferred embodiment of the utility model, the diversion component is a core column and wing plates arranged in the cooling cavity, the core column is fixedly connected to the lower mold body, a plurality of wing plates are arranged on the wall surface of the core column, and the core column and the wing plates jointly cut and divert the fluid flowing through the cooling cavity.

[0017] As a preferred embodiment of the utility model, the core column forms a block with a spindle-shaped horizontal cross-section, the wing plate is fixedly installed on the side wall of the core column, the wing plate is as wide as the cooling cavity, multiple core columns are equidistantly distributed up and down, and a slit is formed between two adjacent wing plates for medium flow.

[0018] Beneficial Effects

[0019] The utility model provides a metal continuous stamping die, which has the following beneficial effects:

[0020] 1. This metal continuous stamping die sets a cooling cavity and uses two water pipes to send water into the cooling cavity to achieve heat exchange between the lower die body and the fluid, avoid high temperature of the lower die body caused by continuous stamping, reduce the adhesion between the plate and the lower die body, control the temperature of the lower die body within a reasonable range, ensure stamping accuracy, and avoid heat concentration damaging the lower die body.

[0021] 2. This kind of metal continuous stamping die, by setting up a plurality of first partitions and utilizing a design in which the length is shorter than the width of the cooling chamber, allows the medium between two adjacent first partitions to flow continuously, and the medium flowing through the cooling chamber will be guided and separated by the first partitions to form a serpentine curved flow trajectory, which can increase the contact area between the medium and the lower mold body and improve the heat exchange effect and efficiency.

[0022] 3. This kind of metal continuous stamping die sets a second partition body, and uses the symmetrically set second partition bodies to guide the medium. The medium flows between two second partition bodies at symmetrical positions, and the length of the second partition body decreases evenly along the direction of medium discharge, thereby forming a trumpet-shaped flow channel with a gradually narrowing opening between the multiple second partition bodies. When the medium passes through the flow channel, it continuously contacts the multiple second partition bodies. On the basis of ensuring sufficient contact area, it can reduce the resistance to medium flow and ensure medium circulation efficiency.

[0023] 4. This metal continuous stamping die guides the medium by providing a core column and a wing plate. The medium enters the cooling chamber from the left water pipe and impacts the spindle-shaped core column. The medium is diverted to both sides of the core column and then diverted by multiple wing plates to form multiple strands. This has better effects on guiding and cutting the medium. At the same time, the core column can support the center position of the lower mold body, that is, the bottom support of the lower mold body molding cavity, thereby reducing the probability of deformation of the lower mold body on the basis of guiding the medium, and the lower mold body has higher strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is an overall stereogram of the utility model;

[0025] Figure 2 This is a schematic diagram of installing a sealing plate on the lower mold body of the utility model;

[0026] Figure 3 This is a schematic diagram of the installation of the first partition body and the lower mold body of the utility model;

[0027] Figure 4 This is a schematic diagram of the installation of the second partition body and the lower mold body of the utility model;

[0028] Figure 5 This is a schematic diagram of the installation of the core column and the lower mold body of the utility model;

[0029] Figure 6 This is a three-dimensional diagram of the wing plate and core column.

[0030] Legend: 10, lower mold body; 11, upper mold body; 12, water pipe; 20, first partition body; 30, second partition body; 40, core column; 41, wing plate. DETAILED DESCRIPTION

[0031] A metal continuous stamping die, such as Figure 1 and Figure 2 As shown, including:

[0032] The lower mold body 10 and the upper mold body 11 cooperate with each other, the top of the lower mold body 10 is provided with a molding cavity, and the bottom surface of the lower mold body 10 is provided with an integrally formed punch, and the sheet in the molding cavity is squeezed by the punch so that the sheet is formed into a fixed shape to achieve stamping molding. This is an existing well-known technology and will not be described in detail here. Of course, the lower mold body 10 needs to be fixedly installed with the base, and a push cylinder should also be installed on the base, and the upper mold body 11 is fixedly installed with the output shaft of the push rod;

[0033] A cooling cavity is provided at the bottom of the lower mold body 10 and is used to cool the lower mold body 10. Two water pipes 12 for water inlet and outlet are fixedly connected to the two sides of the lower mold body 10. The water pipes 12 are connected to the cooling cavity, wherein the cooling cavity is a rectangular groove;

[0034] A sealing plate is arranged at the bottom of the lower mold body 10 and is used to seal the cooling cavity. A sealing gasket is arranged on the top of the sealing plate. The sealing plate is locked and fixed to the lower mold body 10 by fasteners. The fasteners include bolts but are not limited to bolts. By setting a cooling cavity, two water pipes 12 are used to send water into the cooling cavity to achieve heat exchange between the lower mold body 10 and the fluid, thereby avoiding high temperature of the lower mold body 10 caused by continuous stamping, reducing the adhesion between the plate and the lower mold body 10, and controlling the temperature of the lower mold body 10 within a reasonable range to ensure the stamping accuracy. One of the water pipes 12 needs to be connected to a water tank, an evaporator and a temperature sensor are arranged in the water tank, a controller is arranged outside the water tank, the sensor needs to be connected to the controller by electrical signals, and the water temperature in the water tank is controlled by the evaporator to avoid excessive water temperature;

[0035] like Figure 2 and Figure 3 As shown, the flow distribution component is arranged in the cooling cavity to guide and disperse the fluid passing through the cooling cavity.

[0036] The flow dividing assembly is a plurality of first partition bodies 20 arranged in the cooling cavity. The inner walls on both sides of the lower mold body 10 are fixedly connected to the plurality of first partition bodies 20. A gap is left between two adjacent first partition bodies 20. A notch is formed between the first partition body 20 and the inner wall of the lower mold body 10. The plurality of first partition bodies 20 separate the cooling cavity into a serpentine curved flow channel. The first partition body 20 forms a plate of the same height as the cooling cavity. One end of the first partition body 20 is fixedly connected to the inner wall of the lower mold body 10. The other end of the first partition body 20 A free end is formed at one end, and a notch is formed between the free end of the first partition body 20 and the inner wall of the lower mold body 10. In the present embodiment, the first partition body 20 is a rectangular plate structure. By arranging a plurality of first partition bodies 20 and utilizing a design in which the length is shorter than the width of the cooling chamber, the medium between two adjacent first partition bodies 20 can flow continuously, and the medium flowing through the cooling chamber will be guided and separated by the first partition body 20 to form a serpentine curved flow trajectory, which can increase the contact area between the medium and the lower mold body 10 and improve the heat exchange effect and efficiency.

[0037] like Figure 4 As shown, the diversion component is a plurality of second partition bodies 30 arranged in the cooling cavity. The second partition bodies 30 divide the cooling cavity into a funnel-shaped flow channel. The second partition bodies 30 form a plate-like structure with the same height as the cooling cavity. The plurality of second partition bodies 30 are respectively fixedly connected to the inner walls on both sides of the lower mold body 10. The second partition bodies 30 on the inner walls on both sides of the lower mold body 10 are distributed in an eight-shaped shape, and a notch is formed between two second partition bodies 30 at symmetrical positions. In this embodiment, by setting the second partition bodies 30, the symmetrically arranged second partition bodies 30 are used to guide the medium. The medium flows in front of the two second partition bodies 30 at symmetrical positions, and the length of the second partition bodies 30 decreases uniformly along the direction of medium discharge, thereby forming a trumpet-shaped flow channel with a gradually narrowing opening between the plurality of second partition bodies 30. The medium continuously contacts the plurality of second partition bodies 30 when passing through the flow channel. On the basis of ensuring sufficient contact area, the resistance to medium flow can be reduced and the medium circulation efficiency can be ensured.

[0038] like Figure 5 and Figure 6As shown, the flow diversion component is a core column 40 and a wing plate 41 arranged in the cooling cavity. The core column 40 is fixedly connected to the lower mold body 10. A plurality of wing plates 41 are arranged on the wall of the core column 40. The core column 40 and the wing plates 41 jointly cut and divert the fluid flowing through the cooling cavity. The core column 40 forms a block with a spindle-shaped horizontal cross section. The wing plate 41 is fixedly installed on the side wall of the core column 40. The wing plate 41 is the same width as the cooling cavity. Multiple core columns 40 are evenly distributed up and down. A slit is formed between two adjacent wing plates 41 and is used for the flow of the medium. In this solution, By providing a core column 40 and a wing plate 41 to guide the medium, the medium enters the cooling chamber from the left water pipe 12 and impacts the spindle-shaped core column 40. The medium is diverted to both sides of the core column 40, and then diverted through the guidance of multiple wing plates 41 to form multiple strands, which has better effects on guiding and cutting the medium. At the same time, the core column 40 can support the center position of the lower mold body 10, that is, the bottom support of the molding cavity of the lower mold body 10, thereby reducing the deformation probability of the lower mold body 10 on the basis of guiding the medium, and the lower mold body 10 has higher strength.

[0039] The working principle of the utility model is as follows: the lower die body 10 needs to be fixedly installed with the base, a push cylinder should also be installed on the base, the upper die body 11 is fixedly installed with the output shaft of the push rod, and the sheet in the forming cavity is squeezed by the punch so that the sheet is formed into a fixed shape to achieve stamping forming;

[0040] By setting up a cooling chamber, water is sent into the cooling chamber by using two water pipes 12 to achieve heat exchange between the lower mold body 10 and the fluid, avoiding continuous stamping to cause high temperature of the lower mold body 10, and the medium flows through the cooling chamber. The design of a length shorter than the width of the cooling chamber allows the medium between the two adjacent first partition bodies 20 to flow continuously, and the medium flowing through the cooling chamber will be guided and separated by the first partition body 20 to form a serpentine curved flow trajectory, or the medium flows before two second partition bodies 30 in symmetrical positions, and the length of the second partition body 30 decreases uniformly along the direction of medium discharge, thereby forming a trumpet-shaped flow channel with a gradually narrowing opening between the multiple second partition bodies 30, and the medium continuously contacts the multiple second partition bodies 30 when passing through the flow channel, or the medium enters the cooling chamber from the left water pipe 12 and impacts the spindle-shaped core column 40, and the medium is diverted to both sides of the core column 40, and then diverted through the guidance of multiple wing plates 41 to form multiple strands.

[0041] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A metal continuous stamping die, characterized in that: include: A lower mold body (10) and an upper mold body (11) cooperate with each other, a molding cavity is provided on the top of the lower mold body (10), and an integrally molded punch is provided on the bottom surface of the lower mold body (10); A cooling chamber is provided at the bottom of the lower mold body (10) and is used to cool the lower mold body (10). Two water pipes (12) for water inlet and outlet are fixedly connected to both sides of the lower mold body (10), and the water pipes (12) are connected to the cooling chamber; A sealing plate is arranged at the bottom of the lower mold body (10) and is used to seal the cooling chamber, a sealing gasket is arranged on the top of the sealing plate, and the sealing plate is locked and fixed to the lower mold body (10) by means of a fastener; The flow distribution component is arranged in the cooling cavity and is used for guiding and dispersing the fluid passing through the cooling cavity.

2. The metal continuous stamping die according to claim 1, characterized in that: The flow diversion component is a plurality of first partition bodies (20) arranged in the cooling cavity, and the inner walls on both sides of the lower mold body (10) are fixedly connected to the plurality of first partition bodies (20), a gap is left between two adjacent first partition bodies (20), and a notch is formed between the first partition body (20) and the inner wall of the lower mold body (10), and the plurality of first partition bodies (20) divide the cooling cavity into a serpentine curved flow channel.

3. The metal continuous stamping die according to claim 2, characterized in that: The first partition body (20) forms a plate with the same height as the cooling cavity, one end of the first partition body (20) is fixedly connected to the inner wall of the lower mold body (10), the other end of the first partition body (20) forms a free end, and a notch is formed between the free end of the first partition body (20) and the inner wall of the lower mold body (10).

4. The metal continuous stamping die according to claim 1, characterized in that: The flow dividing components are a plurality of second partition bodies (30) arranged in the cooling cavity, and the second partition bodies (30) divide the cooling cavity into funnel-shaped flow channels.

5. The metal continuous stamping die according to claim 4, characterized in that: The second partition bodies (30) form a plate-like structure with the same height as the cooling chamber, and a plurality of second partition bodies (30) are respectively fixedly connected to the inner walls on both sides of the lower mold body (10) opposite to each other, and the second partition bodies (30) on the inner walls on both sides of the lower mold body (10) are distributed in an "eight" shape, and a notch is formed between two second partition bodies (30) at symmetrical positions.

6. The metal continuous stamping die according to claim 1, characterized in that: The flow diversion component comprises a core column (40) and a wing plate (41) arranged in the cooling cavity. The core column (40) is fixedly connected to the lower mold body (10). A plurality of wing plates (41) are arranged on the wall surface of the core column (40). The core column (40) and the wing plates (41) jointly cut and divert the fluid flowing through the cooling cavity.

7. The metal continuous stamping die according to claim 6, characterized in that: The core column (40) forms a block with a spindle-shaped horizontal cross section, and the wing plate (41) is fixedly installed on the side wall of the core column (40). The wing plate (41) is as wide as the cooling cavity. Multiple core columns (40) are evenly distributed up and down, and a slit is formed between two adjacent wing plates (41) for medium flow.

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