Die heating and heat preservation device for hot die forging and hot die forging press device

Abstract

The utility model belongs to the technical field of hot die forging devices, and particularly relates to a die heating and heat preservation device for hot die forging and a hot die forging press device. The utility model discloses a die heating and heat preservation device for hot die forging, which comprises an upper die heat preservation device and a lower die heat preservation device which are oppositely arranged up and down, a first heating groove is arranged in the lower die heat preservation device, and a first heating device is arranged in each first heating groove; second heating grooves are formed in the upper mold heat preservation device, and a second heating device is arranged in each second heating groove. According to the device, heat preservation and heating devices are arranged outside the upper die and the lower die, heat preservation and heating of the upper die and the lower die for hot die forging are achieved, the problems of rapid cooling and the like caused by heat exchange in the hot die forging working process of the dies can be effectively solved, and when the device is used for hot die forging, the uniformity of components and structures of forgings can be guaranteed; the forging quality is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of hot forging equipment, specifically relating to a mold heating and heat preservation device and a hot forging press device for hot forging. Background Technology

[0002] Hot forging of aluminum alloys generally refers to a precision forging method in which heated aluminum alloy billets are plastically shaped into forgings of the required shape and size using upper and lower dies. However, it differs from isothermal forging, with the biggest difference being that the forging press does not have heating capabilities and cannot guarantee a constant die temperature during the forging process. Nevertheless, hot forging also requires strict control over the die temperature during the forging process. If the die temperature is too low during forging, the temperature in the area where the billet contacts the die will drop rapidly, resulting in uneven temperature distribution inside and outside the billet, uneven deformation, and ultimately, inconsistent product dimensions and performance.

[0003] Currently, the main heating method for aluminum alloy forging dies involves placing electric heating elements on the lower die. Due to the inconvenience of installation and maintenance, heating devices are rarely installed on the upper die. Generally, the die is preheated before production and then assembled onto the press. However, heating cannot continue during assembly and subsequent forging processes. Existing methods can only guarantee the initial die temperature. As the die is exposed to air for extended periods, the inability to maintain continuous heating during operation leads to a drop in die temperature, affecting the quality of the forgings. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a mold heating and heat preservation device and a hot forging press device for hot forging, specifically including the following:

[0005] A mold heating and heat preservation device for hot forging includes an upper mold heat preservation device and a lower mold heat preservation device arranged opposite each other.

[0006] The lower mold insulation device includes a first insulation substrate and at least one first heating device. The first insulation substrate is provided with a lower mold mounting groove and at least one first heating groove. Each first heating groove is provided with a first heating device.

[0007] The upper mold insulation device includes a second insulation substrate and at least one second heating device. The second insulation substrate has an upper mold mounting groove and at least one second heating groove. Each second heating groove is provided with a second heating device.

[0008] Furthermore, a first heating protection cover is provided at the opening of the first heating tank; and / or, a second heating protection cover is provided at the opening of the second heating tank.

[0009] Furthermore, the first heating protection cover is rotatably connected to the first insulation substrate; and / or, the second heating protection cover is rotatably connected to the second insulation substrate.

[0010] Furthermore, the first heating protection cover plate is rotatably connected to the first insulation substrate via a hinge; and / or, the second heating protection cover plate is rotatably connected to the second insulation substrate via a hinge.

[0011] Furthermore, it also includes a temperature control device and at least two sets of temperature detection mechanisms.

[0012] The two sets of temperature detection mechanisms are respectively disposed on the first insulation substrate and the second insulation substrate, and / or the two sets of temperature detection mechanisms are respectively disposed in the lower mold mounting groove and the upper mold mounting groove;

[0013] The temperature control device is connected to the temperature detection mechanism, the first heating device, and the second heating device, respectively, and is used to detect and control the temperature of the first insulation substrate, the second insulation substrate, and / or the hot forging die.

[0014] Furthermore, it also includes a first fixed base and a second fixed base, the first insulation substrate is disposed on the upper surface of the first fixed base, and the lower mold mounting groove opening is disposed upward on the first insulation substrate; the lower mold second insulation substrate is disposed on the lower surface of the second fixed base, and the upper mold mounting groove opening is disposed downward on the second insulation substrate.

[0015] Furthermore, the first insulation substrate has a plurality of upward-facing first heating grooves around the lower mold mounting groove; and / or, the second insulation substrate has a plurality of downward-facing second heating grooves around the upper mold mounting groove.

[0016] A hot forging press device with the aforementioned mold heating and heat preservation device for hot forging includes an upper worktable and a lower worktable. The upper mold heat preservation device is disposed on the lower surface of the upper worktable, and the lower mold heat preservation device is disposed on the upper surface of the lower worktable.

[0017] Furthermore, it also includes an upper mold and a lower mold, wherein the upper mold is disposed in the upper mold mounting groove and the lower mold is disposed in the lower mold mounting groove.

[0018] The beneficial effects of this utility model are:

[0019] (1) The mold heating and heat preservation device for hot forging disclosed in this utility model includes an upper mold heat preservation device and a lower mold heat preservation device arranged opposite each other. The lower mold heat preservation device is provided with a first heating groove, and a first heating device is provided in each first heating groove. The upper mold heat preservation device is provided with a second heating groove, and a second heating device is provided in each second heating groove. This device achieves heat preservation and heating of the upper and lower molds for hot forging by providing heat preservation and heating devices on both the upper and lower molds. It can effectively prevent problems such as rapid cooling of the mold due to heat exchange during hot forging. Using this device for hot forging can ensure the uniformity of the composition and structure of the forging and improve the quality of the forging.

[0020] (2) The device disclosed in this utility model is equipped with a temperature control device, a temperature detection mechanism, a first heating device and a second heating device. It can detect the internal temperature of the forging or heat preservation device in real time and heat it as needed. Using this device, the temperature information during the hot forging process can be obtained in a timely manner, and automatic and / or remote temperature control can be achieved. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the device disclosed in this utility model;

[0022] Figure 2 This is a front sectional view of the device disclosed in this utility model;

[0023] Figure 3 This is a bottom view of the upper mold heat preservation device disclosed in this utility model;

[0024] Figure 4 This is a side sectional view of the lower mold heat preservation device disclosed in this utility model. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-4 The present invention will be described in detail below with specific embodiments. The embodiments shown below do not limit the scope of the invention as described in the claims. Furthermore, the complete contents of the configurations shown in the embodiments below are not limited to those necessary for the solution of the invention as described in the claims.

[0026] Reference Appendix Figure 1-4A mold heating and heat preservation device for hot forging includes an upper mold heat preservation device and a lower mold heat preservation device arranged opposite each other. The lower mold heat preservation device includes a first heat preservation base 3 and at least one first heating device 5. The first heat preservation base 3 has a lower mold mounting groove and at least one first heating groove, and each first heating groove is provided with a first heating device 5. The upper mold heat preservation device includes a second heat preservation base 9 and at least one second heating device 13. The second heat preservation base 9 has an upper mold mounting groove and at least one second heating groove, and each second heating groove is provided with a second heating device 13.

[0027] In one embodiment of this utility model, a first heating protection cover plate 6 is provided at the opening of the first heating tank; a second heating protection cover plate 10 is provided at the opening of the second heating tank. Both the first and second heating protection covers plate 10 can be opened and closed, facilitating the installation and removal of the first and second heating devices 13 disposed therein. It should be noted that the opening and closing method is only required to be reasonable, and this embodiment does not impose too many restrictions.

[0028] In one embodiment of this utility model, the first heating protection cover 6 is rotatably connected to the first insulation substrate 3; the second heating protection cover 10 is rotatably connected to the second insulation substrate 9. It should be noted that the rotatable connection described in this embodiment is not an unlimited 360° rotatable connection. A preferred rotatable connection is one in which the first and second heating protection covers 10 can be rotated outwards (to the outside of the opening of the corresponding heating groove). A more preferred solution is that the first and second heating protection covers 10 can be fixed when closed (i.e., they will not accidentally open automatically due to gravity or other forces). If necessary, a limiting device can be used in conjunction, such as a buckle or pin.

[0029] In one embodiment of this utility model, the first heating protection cover 6 is rotatably connected to the first insulation substrate 3 via a hinge; the second heating protection cover 10 is rotatably connected to the second insulation substrate 9 via a hinge. Preferably, the hinge is a hinge that can automatically spring back.

[0030] In one embodiment of this utility model, it further includes a temperature control device 7 and at least two sets of temperature detection mechanisms. The two sets of temperature detection mechanisms are respectively disposed on the first insulation substrate 3 and the second insulation substrate 9, and / or, the two sets of temperature detection mechanisms are respectively disposed in the lower mold mounting groove and the upper mold mounting groove. The temperature control device 7 is connected to the temperature detection mechanisms, the first heating device 5, and the second heating device 13, respectively, for detecting and controlling the temperature of the first insulation substrate 3 and the second insulation substrate 9, and / or the hot forging mold.

[0031] In one embodiment of this utility model, it further includes a first fixed base 2 and a second fixed base 11. The first heat-insulating base 3 is disposed on the upper surface of the first fixed base 2, and the lower mold mounting groove opening is disposed upward on the first heat-insulating base 3. The lower mold second heat-insulating base 9 is disposed on the lower surface of the second fixed base 11, and the upper mold mounting groove opening is disposed downward on the second heat-insulating base 9.

[0032] In one embodiment of the present invention, the first insulation substrate 3 has a plurality of upward-facing first heating grooves around the lower mold mounting groove; and / or, the second insulation substrate 9 has a plurality of downward-facing second heating grooves around the upper mold mounting groove.

[0033] A hot forging press device with the aforementioned mold heating and heat preservation device for hot forging includes an upper worktable 12 and a lower worktable 1. The upper mold heat preservation device is disposed on the lower surface of the upper worktable 12, and the lower mold heat preservation device is disposed on the upper surface of the lower worktable 1.

[0034] In one embodiment of this utility model, an upper mold 8 and a lower mold 4 are further included. The upper mold 8 is disposed in the upper mold mounting groove, and the lower mold 4 is disposed in the lower mold mounting groove. The upper mold 8 and the lower mold 4 are installed opposite each other, so that the upper mold cavity 15 and the lower mold cavity 14 form a complete hot forging cavity. During hot forging, the forging billet 16 is placed in the hot forging cavity. The press control device can control the pressure between the upper worktable 12 and the lower worktable 1 of the press. Temperature control can be achieved through the temperature control device 7, the first heating device 5, and the second heating device 13.

[0035] This device achieves both heat preservation and heating of the upper and lower dies in hot forging by installing heat preservation and heating devices on both the upper and lower dies. This effectively prevents problems such as rapid cooling of the dies due to heat exchange during hot forging. Using this device for hot forging ensures the uniformity of the composition and structure of the forgings, thus improving the quality of the forgings. The device is equipped with a temperature control device 7, a temperature detection mechanism, a first heating device 5, and a second heating device 13. It can monitor the internal temperature of the forging or the heat preservation device in real time and heat as needed. Using this device, temperature information during the hot forging process can be obtained in a timely manner, enabling automatic and / or remote temperature control.

[0036] In the description of this application, it should be noted that the terms "upper," "lower," "vertical," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] Unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0038] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A heating and heat preservation device for a die used in hot forging, characterized in that, It includes an upper mold insulation device, a lower mold insulation device, a temperature control device, and at least two sets of temperature detection mechanisms, all arranged opposite each other. The lower mold insulation device includes a first insulation base and at least one first heating device. The first insulation base is provided with a lower mold mounting groove and at least one first heating groove. Each first heating groove is provided with a first heating device. A first heating protection cover is provided at the opening of the first heating groove. The first heating protection cover is rotatably connected to the first insulation base. The upper mold insulation device includes a second insulation substrate and at least one second heating device. The second insulation substrate has an upper mold mounting groove and at least one second heating groove. Each second heating groove is provided with a second heating device. A second heating protection cover is provided at the opening of the second heating groove. The second heating protection cover is rotatably connected to the second insulation substrate. The two sets of temperature detection mechanisms are respectively disposed on the first insulation substrate and the second insulation substrate, and / or the two sets of temperature detection mechanisms are respectively disposed in the lower mold mounting groove and the upper mold mounting groove; The temperature control device is connected to the temperature detection mechanism, the first heating device, and the second heating device, respectively, and is used to detect and control the temperature of the first insulation substrate, the second insulation substrate, and / or the hot forging die.

2. The mold heating and heat preservation device for hot forging according to claim 1, characterized in that, The first heating protection cover is rotatably connected to the first insulation substrate via a hinge; and / or, the second heating protection cover is rotatably connected to the second insulation substrate via a hinge.

3. The mold heating and heat preservation device for hot forging according to any one of claims 1-2, characterized in that, It also includes a first fixed base and a second fixed base, the first insulation substrate is disposed on the upper surface of the first fixed base, and the lower mold mounting groove opening is disposed on the first insulation substrate with the opening facing upward; the lower mold second insulation substrate is disposed on the lower surface of the second fixed base, and the upper mold mounting groove opening is disposed on the second insulation substrate with the opening facing downward.

4. A mold heating and heat preservation device for hot forging according to claim 3, characterized in that, The first insulation substrate has a plurality of upward-facing first heating grooves around the lower mold mounting groove; and / or, the second insulation substrate has a plurality of downward-facing second heating grooves around the upper mold mounting groove.

5. A hot forging press apparatus with a die heating and heat preservation device for hot forging as described in any one of claims 1-4, comprising an upper worktable and a lower worktable, characterized in that, The upper mold insulation device is located on the lower surface of the upper worktable of the press, and the lower mold insulation device is located on the upper surface of the lower worktable of the press.

6. The hot forging press apparatus according to claim 5, characterized in that, It also includes an upper mold and a lower mold, wherein the upper mold is disposed in the upper mold mounting groove and the lower mold is disposed in the lower mold mounting groove.

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