High-temperature forming die

Abstract

The utility model provides a high-temperature forming mold which comprises a fixed mold insert and a movable mold insert, and a first fine positioning piece and a second fine positioning piece are respectively arranged on two sides of the fixed mold insert; the matching face of the first fine positioning piece and the movable mold insert is cylindrical, and the matching face of the second fine positioning piece and the movable mold insert is rectangular. The cylindrical matching face can limit the fixed mold insert and the movable mold insert to generate two kinds of relative displacement, the first kind of relative displacement is parallel to the axis of the cylindrical matching face, and the second kind of relative displacement is perpendicular to the axis of the cylindrical matching face. And the rectangular matching surface can limit the relative displacement of the fixed mold insert and the movable mold insert parallel to the axis of the rectangular matching surface. By combining the first fine positioning piece and the second fine positioning piece, the conditions of deflection and displacement generated when the fixed mold insert and the movable mold insert are matched can be reduced under the high-temperature condition, so that the matching precision between the fixed mold insert and the movable mold insert is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of high-temperature forming molds, in particular to a high-temperature forming mold. Background Art

[0002] Due to the molding process requirements of the material, some molds require high temperatures to form. Mold steel has thermal expansion, which is related to mold size, molding temperature and thermal expansion coefficient. For example, the insert size of the mold is 350 mm × 270 mm, and the mold molding temperature, i.e., the insert temperature, is 400 degrees. The template temperature is 50 degrees, and the thermal expansion coefficient is 11.7×10 -6 It is calculated that the long side of the insert will increase by 1.4 mm after heating and expansion.

[0003] When the insert expands around, it will squeeze the template frame groove, which will directly affect the mold matching accuracy. Some structures on the mold will hinder the expansion of the insert and may cause the mold to crack under pressure.

[0004] Therefore, it is necessary to design a high-temperature forming mold that is less affected by thermal expansion under high temperature conditions, prevents relative displacement between inserts, and ensures the matching accuracy between inserts. Utility Model Content

[0005] In order to overcome the problems existing in the related art, the purpose of the utility model is to provide a high-temperature forming mold, which is less affected by thermal expansion under high temperature conditions, prevents relative displacement between inserts, and ensures the matching accuracy between inserts.

[0006] A high-temperature forming mold comprises a fixed mold insert and a movable mold insert, wherein a first precision positioning member and a second precision positioning member are respectively arranged on both sides of the fixed mold insert; the mating surface between the first precision positioning member and the movable mold insert is cylindrical, and the mating surface between the second precision positioning member and the movable mold insert is rectangular. The first precision positioning member and the second precision positioning member are both structures extending from the fixed mold insert, and the cylindrical mating surface can limit two kinds of relative displacements between the fixed mold insert and the movable mold insert, the first is a relative displacement parallel to the axis of the cylindrical mating surface, and the second is a relative displacement perpendicular to the axis of the cylindrical mating surface. The rectangular mating surface can limit one kind of relative displacement between the fixed mold insert and the movable mold insert, and the relative displacement is a relative displacement parallel to the axis of the rectangular mating surface. Combined with the first precision positioning member and the second precision positioning member, under high temperature conditions, the deflection and displacement of the fixed mold insert and the movable mold insert during mating can be reduced, thereby ensuring the mating accuracy between the fixed mold insert and the movable mold insert.

[0007] In a preferred technical solution of the utility model, two first positioning blocks are symmetrically arranged on the first central axis of the fixed mold insert, and two first positioning blocks are symmetrically arranged on the second central axis of the fixed mold insert, and the first central axis is perpendicular to the second central axis.

[0008] The two first positioning blocks of the fixed mold insert are set on the first central axis, and the other two first positioning blocks are set on the second central axis, which is equivalent to the zero position, so the thermal expansion difference at this location can be almost ignored. The first positioning blocks fix the fixed mold insert to prevent the fixed mold insert from expanding around under high temperature conditions.

[0009] In a preferred technical solution of the utility model, the high-temperature forming mold also includes a fixed mold plate, the fixed mold insert is arranged on the fixed mold plate, and the first positioning block is used to position the fixed mold insert and the fixed mold plate.

[0010] The fixed mold insert is arranged on the fixed mold plate. Compared with the positioning and matching method of the fixed mold insert and the fixed mold plate frame, the first positioning block can avoid the reduction of the matching accuracy between the fixed mold insert and the fixed mold plate due to different heating temperatures, large temperature difference and large thermal expansion difference between the fixed mold insert and the fixed mold plate.

[0011] In a preferred technical solution of the utility model, a first avoidance groove is provided on the fitting surface between the fixed mold insert and the fixed mold plate.

[0012] The area of ​​the first avoidance groove accounts for 40%-50% of the area of ​​the fixed mold insert. By setting the first avoidance groove, the heat transferred from the fixed mold insert to the fixed mold plate is reduced, and the heat transferred from the fixed mold insert to the outside can be reduced.

[0013] In a preferred technical solution of the utility model, a first matching groove is opened on the fixed template at a position corresponding to the first positioning block, the first end of the first positioning block contacts the first matching groove, and the second end of the first positioning block protrudes relative to the fixed template.

[0014] The depth of the first matching groove is 15 mm. The first positioning block is placed in the first matching groove, and the first positioning block is sunken 15 mm relative to the fixed template. The first end of the first positioning block contacts the first matching groove, and the second end protrudes 15 mm upward relative to the fixed template. The portion of the first positioning block protruding upward relative to the fixed template is used to accurately position the fixed mold insert and the fixed template.

[0015] In a preferred technical solution of the utility model, the surface of the first positioning block perpendicular to the first central axis is the first expansion surface, and there is a gap between the first expansion surface and the first matching groove; the surface of the first positioning block perpendicular to the second central axis is the second expansion surface, and there is a gap between the second expansion surface and the first matching groove.

[0016] The first expansion surface and the second expansion surface can ensure the positioning accuracy of the positioning insert and the fixed mold plate, and can also reduce the influence caused by the difference between the thermal expansion of the fixed mold insert and the thermal expansion of the fixed mold plate.

[0017] In a preferred technical solution of the utility model, two second positioning blocks are symmetrically arranged on the third center axis of the movable mold insert, two second positioning blocks are symmetrically arranged on the fourth center axis of the movable mold insert, and the third center axis is perpendicular to the fourth center axis.

[0018] In a preferred technical solution of the utility model, the high temperature forming mold also includes a movable mold plate, and the movable mold insert is arranged on the movable mold plate.

[0019] It replaces the conventional insert and template frame positioning method to avoid a large temperature difference between the movable mold insert and the movable template due to different heating temperatures, and prevents large differences in thermal expansion.

[0020] In a preferred technical solution of the utility model, a second avoidance groove is provided on the fitting surface between the movable mold insert and the movable mold plate.

[0021] The area of ​​the second avoidance groove accounts for 40%-50% of the area of ​​the movable mold insert, which can reduce the heat transferred from the movable mold insert to the movable mold plate.

[0022] In a preferred technical solution of the present utility model, the first precision positioning member and the second precision positioning member extend in a direction close to the movable mold insert.

[0023] In combination with the first precision positioning member and the second precision positioning member, the matching accuracy between the fixed mold insert and the movable mold insert can be guaranteed under high temperature conditions.

[0024] The beneficial effects of the utility model are:

[0025] The utility model provides a high-temperature forming mold including a fixed mold insert and a movable mold insert, and a first precision positioning member and a second precision positioning member are respectively arranged on both sides of the fixed mold insert; the mating surface between the first precision positioning member and the movable mold insert is cylindrical, and the mating surface between the second precision positioning member and the movable mold insert is rectangular. The first precision positioning member and the second precision positioning member are both structures extending from the fixed mold insert, and the cylindrical mating surface can limit two kinds of relative displacements between the fixed mold insert and the movable mold insert, the first is a relative displacement parallel to the axis of the cylindrical mating surface, and the second is a relative displacement perpendicular to the axis of the cylindrical mating surface. The rectangular mating surface can limit a relative displacement between the fixed mold insert and the movable mold insert, and the relative displacement is a relative displacement parallel to the axis of the rectangular mating surface. Combined with the first precision positioning member and the second precision positioning member, under high temperature conditions, the deflection and displacement of the fixed mold insert and the movable mold insert during mating can be reduced, thereby ensuring the mating accuracy between the fixed mold insert and the movable mold insert. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure in which the fixed mold insert is assembled on the fixed mold plate;

[0027] Figure 2 is a schematic diagram of the structure of the first precision positioning member and the second precision positioning member;

[0028] Figure 3 It is a structural schematic diagram of the high temperature forming mold provided by the utility model;

[0029] Figure 4 It is a structural schematic diagram of the movable mold insert provided by the utility model;

[0030] Figure 5 It is a structural schematic diagram of the fixed mold insert provided by the utility model;

[0031] Figure 6 yes Figure 5 Section view along AA direction;

[0032] Figure 7 It is a schematic diagram of the first expansion surface and the second expansion surface provided by the utility model.

[0033] Figure numerals: 1, fixed mold insert; 11, first positioning block; 111, first expansion surface; 112, second expansion surface; 12, first avoidance groove; 2, movable mold insert; 21, second positioning block; 22, second avoidance groove; 3, first precision positioning piece; 4, second precision positioning piece; 5, fixed mold plate; 51, first matching groove; 6, movable mold plate; 7, locking screw. DETAILED DESCRIPTION

[0034] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0035] Example 1

[0036] like Figure 1-Figure 7 As shown, this embodiment provides a high-temperature forming mold, including a fixed mold insert 1 and a movable mold insert 2, and the first precision positioning part 3 and the second precision positioning part 4 are symmetrically arranged on both sides of the fixed mold insert 1; the matching surface between the first precision positioning part 3 and the movable mold insert 2 is cylindrical, and the matching surface between the second precision positioning part 4 and the movable mold insert 2 is rectangular.

[0037] The first precision positioning member 3 and the second precision positioning member 4 are both arranged on the central axis of the fixed mold insert 1 , and the first precision positioning member 3 and the second precision positioning member 4 are symmetrical about the central point of the fixed mold insert 1 .

[0038] The first precision positioning part 3 and the second precision positioning part 4 both extend in the direction close to the movable mold insert 2. The cavity on the parting surface side of the fixed mold insert 1 and the movable mold insert 2 is controlled by the clamp line, and the influence of the difference in thermal expansion under high temperature conditions needs to be considered. The cavity refers to the cavity formed by the mold, that is, the product molding cavity. The various inserts of the mold form a neat cavity, so there is a splicing line between the various inserts, and the splicing line, that is, the clamp line, will be replicated on the product.

[0039] The positioning surfaces of the first precision positioning member 3 and the second precision positioning member 4 are parallel to the Z axis in the three-dimensional space and perpendicular to the X axis and Y axis in the three-dimensional space. This ensures accurate positioning. Figure 2 As shown, the cylindrical surface D14 is the matching surface between the first precision positioning member 3 and the movable mold insert 2 , and the wider surface of the second precision positioning member 4 is the matching surface between the second precision positioning member 4 and the movable mold insert 2 .

[0040] by Figure 2 For reference, the cylindrical surface D14 of the first precision positioning part 3 can limit the left-right displacement and up-down displacement of the fixed mold insert 1 and the movable mold insert 2 during assembly, and the wider side of the second precision positioning part 4 can limit the left-right displacement of the fixed mold insert 1 and the movable mold insert 2 during assembly.

[0041] A high-temperature forming mold provided in this embodiment includes a fixed mold insert 1 and a movable mold insert 2. The first precision positioning part 3 and the second precision positioning part 4 are symmetrically arranged on both sides of the fixed mold insert 1; the mating surface between the first precision positioning part 3 and the movable mold insert 2 is cylindrical, and the mating surface between the second precision positioning part 4 and the movable mold insert 2 is rectangular. The first precision positioning part 3 and the second precision positioning part 4 are both structures extending from the fixed mold insert 1. The cylindrical mating surface can limit two kinds of relative displacements between the fixed mold insert 1 and the movable mold insert 2. The first is a relative displacement parallel to the axis of the cylindrical mating surface, and the second is a relative displacement perpendicular to the axis of the cylindrical mating surface. The rectangular mating surface can limit one kind of relative displacement between the fixed mold insert 1 and the movable mold insert 2, and the relative displacement is a relative displacement parallel to the axis of the rectangular mating surface. In combination with the first precision positioning member 3 and the second precision positioning member 4, under high temperature conditions, the deflection and displacement of the fixed mold insert 1 and the movable mold insert 2 during matching can be reduced, thereby ensuring the matching accuracy between the fixed mold insert 1 and the movable mold insert 2.

[0042] Example 2

[0043] like Figure 1-Figure 7As shown, this embodiment provides a high-temperature forming mold, including a fixed mold insert 1 and a movable mold insert 2, and the first precision positioning part 3 and the second precision positioning part 4 are symmetrically arranged on both sides of the fixed mold insert 1; the matching surface between the first precision positioning part 3 and the movable mold insert 2 is cylindrical, and the matching surface between the second precision positioning part 4 and the movable mold insert 2 is rectangular.

[0044] like Figure 5 As shown, two first positioning blocks 11 are symmetrically arranged on the first central axis of the fixed mold insert 1, and two first positioning blocks 11 are symmetrically arranged on the second central axis of the fixed mold insert 1, and the first central axis is perpendicular to the second central axis.

[0045] In this embodiment, the first central axis is Figure 5 The vertical center axis of Figure 5 Taking the horizontal center axis as an example, the two first positioning blocks 11 distributed on the first center axis are located between the center of the fixed mold insert 1 and the edge of the fixed mold insert 1 , and the two first positioning blocks 11 distributed on the second center axis are arranged close to the edge of the fixed mold insert 1 .

[0046] Two first positioning blocks 11 of the fixed mold insert 1 are arranged on the first central axis, and the other two first positioning blocks 11 are arranged on the second central axis, which is equivalent to the zero position, so the thermal expansion difference there is almost negligible. The first positioning blocks 11 fix the fixed mold insert 1 to prevent the fixed mold insert 1 from expanding around under high temperature conditions.

[0047] The first positioning block 11 is used to coordinate and position the fixed mold insert 1 and the fixed mold plate 5, and the first positioning block 11 is a straight positioning block. The fixed mold insert 1 is set on the fixed mold plate 5, and the first positioning block 11 is used to position the fixed mold insert 1 and the fixed mold plate 5. Compared with the positioning and matching method of the fixed mold insert 1 and the fixed mold plate 5 mold frame, the straight positioning block can avoid the reduction of the matching accuracy between the fixed mold insert 1 and the fixed mold plate 5 due to different heating temperatures, large temperature differences, and large thermal expansion differences.

[0048] Two first positioning blocks 11 are respectively arranged on the first central axis and the second central axis of the fixed mold insert 1, which not only ensures the positioning accuracy of the fixed mold insert 1 and the fixed mold plate 5, but also reduces the thermal expansion difference between the thermal expansion of the fixed mold insert 1 and the fixed mold plate 5, thereby reducing the impact of the thermal expansion difference between the fixed mold insert 1 and the fixed mold plate 5.

[0049] Two first positioning blocks 11 are symmetrically arranged on the first center axis of the fixed mold insert 1 of the high-temperature forming mold of this embodiment, and two first positioning blocks 11 are symmetrically arranged on the second center axis of the fixed mold insert 1, and the first center axis and the second center axis are perpendicular. The high-temperature forming mold also includes a fixed mold plate 5, and the fixed mold insert 1 is arranged on the fixed mold plate 5, and the first positioning blocks 11 are used to position the fixed mold insert 1 and the fixed mold plate 5. The first positioning blocks 11 are used to coordinate and position the fixed mold insert 1 and the fixed mold plate 5, and the first positioning blocks 11 are straight positioning blocks. Two first positioning blocks 11 are respectively arranged on the first center axis and the second center axis of the fixed mold insert 1, which not only ensures the positioning accuracy of the fixed mold insert 1 and the fixed mold plate 5, but also reduces the thermal expansion difference between the thermal expansion of the fixed mold insert 1 and the fixed mold plate 5, and reduces the influence of the thermal expansion difference between the fixed mold insert 1 and the fixed mold plate 5.

[0050] Example 3

[0051] like Figure 1-Figure 7 As shown, this embodiment provides a high-temperature forming mold, including a fixed mold insert 1 and a movable mold insert 2, and the first precision positioning part 3 and the second precision positioning part 4 are symmetrically arranged on both sides of the fixed mold insert 1; the matching surface between the first precision positioning part 3 and the movable mold insert 2 is cylindrical, and the matching surface between the second precision positioning part 4 and the movable mold insert 2 is rectangular.

[0052] Two first positioning blocks 11 are symmetrically arranged on the first central axis of the fixed mold insert 1 , and two first positioning blocks 11 are symmetrically arranged on the second central axis of the fixed mold insert 1 , and the first central axis is perpendicular to the second central axis.

[0053] The high temperature forming mold also includes a fixed mold plate 5, the fixed mold insert 1 is arranged on the fixed mold plate 5, the first positioning block 11 is used to position the fixed mold insert 1 and the fixed mold plate 5, and the fitting surface of the fixed mold insert 1 and the fixed mold plate 5 is provided with a first avoidance groove 12.

[0054] The area of ​​the first avoidance groove 12 accounts for 40%-50% of the area of ​​the fixed mold insert 1. Figure 3 As shown, the first avoidance groove 12 is provided at one end of the fixed mold insert 1 away from the movable mold insert 2. The first avoidance groove 12 is provided to reduce the heat transferred from the fixed mold insert 1 to the fixed mold plate 5, and the heat transferred from the fixed mold insert 1 to the outside can be reduced.

[0055] A first avoidance groove 12 is provided at a blank position of the fixed mold insert 1, where the blank position is a position on the fixed mold insert 1 that does not include screws and water transport holes. The first avoidance groove 12 can reduce the contact surface between the fixed mold insert 1 and the fixed mold plate 5, reduce the heat conduction surface of the fixed mold insert 1, and thus reduce the heat conduction between the fixed mold insert 1 and the outside.

[0056] In this embodiment, the fitting surface between the fixed mold insert 1 and the fixed mold plate 5 is provided with a first avoidance groove 12, which can reduce the contact surface between the fixed mold insert 1 and the fixed mold plate 5, reduce the heat conduction surface of the fixed mold insert 1, and reduce the heat transferred from the fixed mold insert 1 to the outside.

[0057] Example 4

[0058] like Figure 1-Figure 7 As shown, this embodiment provides a high-temperature forming mold, including a fixed mold insert 1 and a movable mold insert 2, and the first precision positioning part 3 and the second precision positioning part 4 are symmetrically arranged on both sides of the fixed mold insert 1; the matching surface between the first precision positioning part 3 and the movable mold insert 2 is cylindrical, and the matching surface between the second precision positioning part 4 and the movable mold insert 2 is rectangular.

[0059] Two first positioning blocks 11 are symmetrically arranged on the first central axis of the fixed mold insert 1 , and two first positioning blocks 11 are symmetrically arranged on the second central axis of the fixed mold insert 1 , and the first central axis is perpendicular to the second central axis.

[0060] The high temperature forming mold further comprises a fixed mold plate 5, the fixed mold insert 1 is arranged on the fixed mold plate 5, and the first positioning block 11 is used to position the fixed mold insert 1 and the fixed mold plate 5. A first matching groove 51 is provided on the fixed mold plate 5 at a position corresponding to the first positioning block 11, the first end of the first positioning block 11 is in contact with the first matching groove 51, and the second end of the first positioning block 11 protrudes relative to the fixed mold plate 5. The second end of the first positioning block 11 has a surface close to the center of the fixed mold insert 1 and parallel to the first central axis or the second central axis, and the surface is used to accurately position the fixed mold insert 1 and the fixed mold plate 5.

[0061] The depth of the first matching groove 51 is 15 mm, the first positioning block 11 is placed in the first matching groove 51, and the first positioning block 11 sinks 15 mm relative to the fixed template 5. The first end of the first positioning block 11 contacts the first matching groove 51, and the second end protrudes upward 15 mm relative to the fixed template 5.

[0062] The surface of the first positioning block 11 perpendicular to the first central axis is a first expansion surface 111 , and there is a gap between the first expansion surface 111 and the first matching groove 51 ; the surface of the first positioning block 11 perpendicular to the second central axis is a second expansion surface 112 , and there is a gap between the second expansion surface 112 and the first matching groove 51 .

[0063] like Figure 7As shown, for the first positioning block 11 on the first central axis, the surface parallel to the first central axis is the first positioning surface, and the first positioning surface is close to the first central axis. For the first positioning block 11 on the second central axis, the surface parallel to the second central axis is the second positioning surface, and the second positioning surface is close to the second central axis. The first positioning block 11 and the fixed mold insert 1 form a match on the first positioning surface and the second positioning surface.

[0064] For the first positioning block 11 on the first central axis, the surface perpendicular to the first central axis is the third positioning surface. Since the third positioning surface is located in the thermal expansion direction of the fixed mold insert 1, a clearance treatment is performed between the third positioning surface and the positioning insert so that there is a gap between the third positioning surface and the positioning insert.

[0065] For the first positioning block 11 on the second central axis, the surface perpendicular to the second central axis is the fourth positioning surface. Since the fourth positioning surface is located in the thermal expansion direction of the fixed mold insert 1, a gap is avoided between the fourth positioning surface and the positioning insert so that there is a gap between the fourth positioning surface and the positioning insert.

[0066] In this embodiment, a first matching groove 51 is provided at a position corresponding to the first positioning block 11 on the fixed mold plate 5, and the first end of the first positioning block 11 contacts the first matching groove 51, and the second end of the first positioning block 11 protrudes relative to the fixed mold plate 5. The surface of the first positioning block 11 perpendicular to the first central axis is the first expansion surface 111, and there is a gap between the first expansion surface 111 and the first matching groove 51; the surface of the first positioning block 11 perpendicular to the second central axis is the second expansion surface 112, and there is a gap between the second expansion surface 112 and the first matching groove 51. The first expansion surface 111 and the second expansion surface 112 can ensure the positioning accuracy of the positioning insert and the fixed mold plate 5, and can also reduce the influence caused by the difference between the thermal expansion of the fixed mold insert 1 and the thermal expansion of the fixed mold plate 5.

[0067] Example 5

[0068] The present embodiment provides a high-temperature forming mold, including a fixed mold insert 1 and a movable mold insert 2, wherein a first precision positioning part 3 and a second precision positioning part 4 are symmetrically arranged on both sides of the fixed mold insert 1; the mating surface between the first precision positioning part 3 and the movable mold insert 2 is cylindrical, and the mating surface between the second precision positioning part 4 and the movable mold insert 2 is rectangular.

[0069] Two second positioning blocks 21 are symmetrically arranged on the third center axis of the movable mold insert 2, and two second positioning blocks 21 are symmetrically arranged on the fourth center axis of the movable mold insert 2. The third center axis is perpendicular to the fourth center axis.

[0070] The high temperature forming mold also includes a movable mold plate 6, and the movable mold insert 2 is arranged on the movable mold plate 6, replacing the conventional insert and mold frame positioning method, avoiding a large temperature difference between the movable mold insert 2 and the movable mold plate 6 due to different heating temperatures, and preventing a large difference in thermal expansion.

[0071] The mating surface of the movable mold insert 2 and the movable mold plate 6 is provided with a second avoidance groove 22, and the first precision positioning member 3 and the second precision positioning member 4 extend in a direction close to the movable mold insert 2. The area of ​​the second avoidance groove 22 accounts for 40%-50% of the area of ​​the movable mold insert 2, which can reduce the heat transferred from the movable mold insert 2 to the movable mold plate 6. The position of the second avoidance groove 22 on the movable mold insert 2 can be the same as the position of the first avoidance groove 12 on the fixed mold insert 1, or it can be different, which is not limited here.

[0072] A locking screw 7 is provided at the bottom of the movable mold insert 2 , and the locking screw 7 is used to lock the movable mold insert 2 and the movable mold plate 6 .

[0073] In this embodiment, two second positioning blocks 21 are symmetrically arranged on the third center axis of the movable mold insert 2, and two second positioning blocks 21 are symmetrically arranged on the fourth center axis of the movable mold insert 2, and the third center axis and the fourth center axis are perpendicular. The high temperature forming mold also includes a movable mold plate 6, and the movable mold insert 2 is arranged on the movable mold plate 6. The movable mold insert 2 is arranged on the movable mold plate 6, replacing the conventional mold insert matching mold frame positioning method, avoiding a large temperature difference between the movable mold insert 2 and the movable mold plate 6 due to different heating temperatures, and preventing a large difference in thermal expansion.

[0074] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the application. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a restriction. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in the subsequent accompanying drawings.

[0075] It should be understood that spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would then be positioned "below" or "below" the other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used herein should be interpreted accordingly.

[0076] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0077] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A high temperature forming mold, characterized in that: It comprises a fixed mold insert and a movable mold insert, wherein a first precision positioning piece and a second precision positioning piece are respectively arranged on both sides of the fixed mold insert; the matching surface between the first precision positioning piece and the movable mold insert is cylindrical, and the matching surface between the second precision positioning piece and the movable mold insert is rectangular.

2. The high temperature forming mold according to claim 1, characterized in that: Two first positioning blocks are symmetrically arranged on the first central axis of the fixed mold insert, and two first positioning blocks are symmetrically arranged on the second central axis of the fixed mold insert, and the first central axis is perpendicular to the second central axis.

3. The high temperature forming mold according to claim 2, characterized in that: It also includes a fixed mold plate, the fixed mold insert is arranged on the fixed mold plate, and the first positioning block is used to position the fixed mold insert and the fixed mold plate.

4. The high temperature forming mold according to claim 3, characterized in that: The fitting surfaces of the fixed mold insert and the fixed mold plate are provided with a first avoidance groove.

5. The high temperature forming mold according to claim 3, characterized in that: A first matching groove is provided on the fixed template at a position corresponding to the first positioning block, a first end of the first positioning block contacts the first matching groove, and a second end of the first positioning block protrudes relative to the fixed template.

6. The high temperature forming mold according to claim 5, characterized in that: The surface of the first positioning block perpendicular to the first central axis is a first expansion surface, and there is a gap between the first expansion surface and the first matching groove; the surface of the first positioning block perpendicular to the second central axis is a second expansion surface, and there is a gap between the second expansion surface and the first matching groove.

7. The high temperature forming mold according to claim 1, characterized in that: Two second positioning blocks are symmetrically arranged on the third central axis of the movable mold insert, and two second positioning blocks are symmetrically arranged on the fourth central axis of the movable mold insert. The third central axis is perpendicular to the fourth central axis.

8. The high temperature forming mold according to claim 1, characterized in that: It also includes a movable mold plate, and the movable mold insert is arranged on the movable mold plate.

9. The high temperature forming mold according to claim 8, characterized in that: A second avoidance groove is provided between the mating surfaces of the movable mold insert and the movable mold plate.

10. The high temperature forming mold according to claim 1, characterized in that: The first precision positioning member and the second precision positioning member extend in a direction close to the movable mold insert.

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