Blank pressing block, lower die and aluminum thermal forming die

Abstract

The utility model discloses an edge pressing block, a lower die and an aluminum thermal forming die. The edge pressing block comprises an edge pressing block body and an adjusting component. The blank pressing block body is provided with a first side part and a second side part which are oppositely arranged in a spaced mode, a groove is formed in the blank pressing block body and used for allowing at least part of the plate positioning assembly to stretch into, and the adjusting component is detachably installed in the groove and used for limiting the size of the part, stretching into the groove, of the plate positioning assembly. According to the technical scheme, the groove extending from the second side part to the first side part is formed in the blank pressing block body, and the plate positioning assembly can partially extend into the groove. And then the detachable adjusting component is installed in the groove and used for limiting the size of the part, stretching into the groove, of the plate positioning assembly. Thus, fine adjustment is allowed by the adjusting component, it is ensured that the supporting part of the plate positioning assembly is accurately positioned and matched with the mold, the size precision of a formed product is improved, meanwhile, the gap between the plate positioning assembly and the first groove wall is effectively filled, and it is ensured that the plate cannot accidentally collapse or deform in the forming process.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to an edge pressing block, a lower mold and an aluminum hot forming mold. Background Art

[0002] Aluminum hot forming is a material forming method that allows us to obtain the desired shape by heating the blank to a certain temperature, then stamping it in the corresponding die and quenching it under pressure. This method can not only realize the shape of the part, but also promote the phase change of the metal material. Aluminum hot forming has been widely used in aviation, automobile, shipbuilding and other industrial fields.

[0003] In aluminum hot forming technology, positioning before hot pressing is crucial. In order to cope with the dimensional changes of the plate during the forming process, the plate positioning assembly needs to be set in an adjustable manner. When adjusting the positioning of the plate positioning assembly, some avoidance gaps may be left on the edge pressing block. If these gaps are not filled, the plate may sag, thereby affecting the forming quality. Therefore, the prior art uses a welding method to fill these avoidance gaps.

[0004] However, this method has some drawbacks. The filled welds are usually weaker than the original material and may crack over time. The sheet metal may collapse from the welds during the stamping process, thus affecting the quality of the part. Utility Model Content

[0005] The main purpose of the utility model is to provide a pressure edge block, aiming to solve the problem that the existing pressure edge block using welding is prone to collapse and cracking when avoiding the gap.

[0006] In order to achieve the above-mentioned purpose, the utility model proposes a pressure edge block, which comprises:

[0007] A pressure block body, the pressure block body having a first side portion and a second side portion arranged opposite to each other at an interval, the pressure block body being formed with a groove extending from the second side portion toward the first side portion, the groove having a notch facing away from the first side portion and a first groove wall arranged opposite to the notch at an interval, the notch being used for allowing at least a part of the plate positioning assembly to extend into the groove so that the support portion of the plate positioning assembly can be used to support the plate material to be formed;

[0008] An adjusting member is detachably mounted in the groove and extends from the first groove wall toward and away from the first side portion, so as to limit the dimension of the plate positioning assembly extending into the groove.

[0009] In some embodiments, the adjustment member includes at least one washer and a fastener for locking the washer in the groove.

[0010] In some embodiments, the adjusting member further comprises a connecting block, the at least one gasket is arranged between the first groove wall and the connecting block, and the fastener is sequentially passed through and connected to the connecting block, the at least one gasket and the first groove wall.

[0011] In some embodiments, the groove also has two second groove walls that are spaced apart and opposite to each other and extend from the groove opening to the first groove wall respectively. The connecting block includes a first branch arm and two second branch arms. One side of the first branch arm abuts against the at least one gasket, and the two second branch arms extend from both ends of the first branch arm along the second groove wall in a direction away from the at least one gasket. The number of the fasteners is two, and each of the fasteners is respectively arranged to penetrate and connect one of the second branch arms, the first branch arm, the at least one gasket and the first groove wall in sequence.

[0012] In some embodiments, the adjustment member includes at least two of the spacers.

[0013] In some embodiments, the thickness of at least one of the shims is greater than the thickness of another of the shims; and / or,

[0014] The fastener is a bolt or a screw.

[0015] In some embodiments, a top surface of the adjustment member is flush with a top surface of the edge clamp body.

[0016] In some embodiments, a boss is provided in the groove, and the adjusting member is supported on the boss.

[0017] The utility model further proposes a lower mold, including a lower mold body, a plate positioning assembly and the aforementioned edge clamping block, a edge clamping ring is provided on one side of the lower mold body, the edge clamping block and the plate positioning assembly are provided on the end of the edge clamping ring facing away from the lower mold body, the plate positioning assembly at least partially extends into the groove of the edge clamping block, and the supporting part of the plate positioning assembly can be used to support the sheet material to be formed.

[0018] The utility model further proposes an aluminum hot forming mold, comprising an upper mold and the aforementioned lower mold, wherein the edge pressing block is arranged on a side of the lower mold body facing the upper mold.

[0019] In the technical aspect of the utility model, a groove extending from the second side portion toward the first side portion is formed in the edge pressure block body, and the plate positioning assembly can partially extend into the groove. Then, a detachable adjustment member is installed in the groove, and is extended from the first groove wall toward the first side portion to limit the size of the plate positioning assembly extending into the groove. In this way, the adjustment member allows fine adjustment according to specific needs to ensure that the supporting part of the plate positioning assembly matches the accurate positioning of the mold, thereby improving the dimensional accuracy of the molded product, and effectively filling the gap between the plate positioning assembly and the first groove wall to ensure that the sheet material will not accidentally collapse or deform during the molding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the edge pressing block in one embodiment of the utility model;

[0021] Figure 2 This is a schematic diagram of the assembly structure of the edge holding block, the edge holding ring, and the plate positioning assembly in one embodiment of the utility model;

[0022] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0023] Figure 4 This is a structural schematic diagram of a blank holder ring in another embodiment of the utility model;

[0024] Figure 5 This is a structural schematic diagram of a blank holder in yet another embodiment of the present utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the edge pressing block in one embodiment of the utility model;

[0026] Figure 7 This is a structural schematic diagram of a blank holder ring in another embodiment of the utility model;

[0027] Figure 8 It is a schematic diagram of the assembly structure of the edge holding block, the edge holding ring, and the plate positioning assembly in one embodiment of the utility model.

[0028] Description of Figure Numbers:

[0029] 100, edge clamp body; 100a, first side; 100b, second side; 102, groove; 102a, notch; 102b, first groove wall; 102c, second groove wall; 102d, boss; 200, plate positioning assembly; 200a, support portion; 200b, pin; 300, adjustment member; 302, gasket; 304, fastener; 306, connecting block; 306a, first arm; 306b, two second arms; F, edge clamp ring.

[0030] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the scheme in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0033] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0034] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0035] In the actual hot forming process, the size of the to-be-formed plate may increase or decrease. To cope with this change, the plate positioning assembly is configured to be able to reciprocate along the extension direction of the groove to achieve adjustment to adapt to the size change. The problem that follows is that during the hot pressing process, the blank may collapse from the groove due to the stamping, affecting the forming quality of the part. To address this problem, the utility model proposes a clamping block, which can effectively prevent the plate from collapsing in the groove.

[0036] Reference Figures 1 to 3 , Figure 1 This is a schematic diagram of the structure of the edge pressure block in one embodiment of the utility model. Figure 2This is a schematic diagram of the assembly structure of the edge holding block, the edge holding ring, and the plate positioning assembly in one embodiment of the utility model. Figure 3 for Figure 2 A magnified schematic diagram of center A.

[0037] The edge pressing block proposed in the embodiment of the utility model comprises:

[0038] A clamping block body 100, wherein the clamping block body 100 has a first side portion 100a and a second side portion 100b which are arranged opposite to each other at an interval, and the clamping block body 100 is formed with a groove 102 extending from the second side portion 100b toward the first side portion 100a, and the groove 102 has a notch 102a which is opposite to the first side portion 100a and a first groove wall 102b which is arranged opposite to the notch 102a at an interval, and the notch 102a is used for allowing at least a part of the plate positioning assembly 200 to extend into the groove 102 so that the support portion of the plate positioning assembly 200 can be used to support the plate material to be formed;

[0039] The adjusting member 300 is detachably installed in the groove 102 and extends from the first groove wall 102 b toward away from the first side portion 100 a to limit the dimension of the panel positioning assembly 200 extending into the groove 102 .

[0040] The "plate positioning assembly" mentioned in the present application is mainly used to be installed on the lower mold of aluminum hot forming (of course, it can also be installed on the upper mold, without limitation), to carry and position the heated plate to be formed, and it is usually used in combination with multiple (for example, three, four, etc.); the installation with the mold is mainly through setting a groove 102 on the edge pressing block, and then at least part of the plate positioning assembly 200 is extended into the groove 102a so that the support part 200a of the plate positioning assembly 200 can be used to support the plate to be formed;

[0041] The plate positioning assembly mainly includes a base, on which a pin 200b is arranged, and a through groove is opened in the straight wall part of the pin 200b, in which a rotatable material receiving rod is installed, and the rear end of the material receiving rod is fixedly connected to the base by a spring, and the material receiving rod rests on the protrusion inside the pin 200b through the action of the spring; when the heated plate to be formed is placed into the mold by the robot, it slides in along the pin 200b, falls on the supporting part 200a of the material receiving rod, and is supported by several material receiving rods, so as to achieve precise positioning while ensuring that the plate does not contact the lower mold surface before stamping.

[0042] In this embodiment, the edge clamp is a component that carries the sheet material to be formed and installs the plate positioning assembly 200. It is mainly located on the contact surface of the mold and bears the friction of the high-hardness metal compound from the surface of the product. Therefore, its material needs to have good wear resistance to protect the mold surface from wear. By selecting edge clamps of different materials and shapes, the mechanical properties of the parts, such as strength, hardness, etc., can be adjusted.

[0043] Based on this, considering the use in high temperature environment, the material of the edge clamp should have good heat resistance, such as tantalum, niobium, etc.; among them, tantalum has excellent corrosion resistance and mechanical properties. It is suitable for edge clamps in high temperature and corrosive environments. Niobium is a refractory metal with good heat resistance and corrosion resistance. It performs well in high temperature environments and is suitable for edge clamp F inserts. Considering friction and wear, it is necessary to select materials with good wear resistance, such as high-hardness tool steel or special alloy steel. The thermal conductivity of the material affects the cooling effect. Therefore, in terms of thermal conductivity, some materials such as beryllium copper with good thermal conductivity can be selected.

[0044] The adjusting member 300 in this embodiment is mainly used to limit the size of the plate positioning component 200 extending into the groove 102, and also fills the gap between the plate positioning component 200 and the first groove wall 102b, which is a gap left to cope with the adjustment of the plate size change, so as to prevent the plate from collapsing in the gap during the stamping process. The adjusting member 300 is filled into the gap and will inevitably be stamped by the upper mold and the plate. Therefore, its material can be selected from tool steel, cemented carbide, etc.; wherein, tool steel has good wear resistance, strength and corrosion resistance. It is suitable for mold parts, including the adjusting member 300. For example, H13 (1.2344) or similar materials. Cemented carbide has excellent wear resistance and hardness. It can be used in key parts of components to enhance durability.

[0045] In addition to increasing the compressive resistance of the adjustment member 300 by material, it is also possible to start from its shape and structure. For example, reinforcing ribs or ribs can be added to the design of the adjustment member 300 to increase its strength and rigidity. These reinforcing ribs can be designed along the main stress direction of the member to enhance the compressive resistance.

[0046] Appropriate fillets may also be added to the corners and joints of the regulating member 300 to help reduce stress concentration and prevent cracks.

[0047] In the technical method of this embodiment, by forming a groove 102 extending from the second side portion 100b to the first side portion 100a in the edge clamp body 100, the plate positioning assembly 200 can partially extend into the groove 102. Then, by installing a detachable adjustment member 300 in the groove 102 and extending it from the first groove wall 102b away from the first side portion 100a, it is used to limit the size of the plate positioning assembly 200 extending into the groove 102. In this way, the adjustment member 300 allows fine-tuning according to specific needs to ensure that the support part of the plate positioning assembly 200 matches the accurate positioning of the mold, thereby improving the dimensional accuracy of the molded product, and effectively filling the gap between the plate positioning assembly 200 and the first groove wall 102b to ensure that the sheet material will not accidentally collapse or deform during the molding process.

[0048] Further, see Figure 4 , Figure 4 Schematic diagram of the structure of the blank holder F in another embodiment of the present invention.

[0049] In this embodiment, the adjusting member 300 includes at least one gasket 302 and a fastener 304 for locking the gasket 302 in the groove 102 .

[0050] In this embodiment, the gasket 302 is a thin and strong part, usually made of metal or plastic. In this embodiment, the gasket 302 is used to fill the gap between the plate positioning assembly 200 and the first slot wall 102b.

[0051] The presence of the gasket 302 can balance the irregular surface. If the groove 102 or the groove wall has an irregular or uneven surface, the gasket 302 can fill these uneven places to ensure that the support part of the plate positioning assembly 200 matches the accurate positioning of the mold.

[0052] At the same time, the gasket 302 can disperse the pressure from the panel positioning assembly 200 and the fastener 304, reduce local stress concentration, and thus improve durability.

[0053] The fastener 304 that cooperates therewith can be a bolt and a nut or a screw, wherein bolts and nuts are common fasteners 304. When locking the gasket 302, bolts and nuts of appropriate size and material are selected to ensure that the gasket 302 is firmly locked in the groove 102. Screws are also an option. Screws are usually used in occasions that require disassembly and reassembly. For the frequent changes in the size of the panel, the size of the panel positioning assembly 200 extending into the groove 102 needs to be adjusted. The addition of gaskets 302 can be quickly increased or decreased, thereby improving the adjustment efficiency.

[0054] In this embodiment, during the use of the gasket 302 and the fastener 304, first, the gasket 302 is placed in the groove 102 to ensure that it is in close contact with the groove wall. Then, the fastener 304 (bolt, nut or screw) is tightened using an appropriate tool to lock the gasket 302 in the groove 102.

[0055] In this embodiment, the presence of the gasket 302 ensures that the supporting part of the plate positioning assembly 200 matches the accurate positioning of the mold, thereby improving the dimensional accuracy of the molded product. At the same time, the fastener 304 locks the gasket 302 in the groove 102, effectively filling the gap between the plate positioning assembly 200 and the first groove wall 102b, ensuring that the plate material will not accidentally collapse or deform during the molding process, thereby improving the molding quality of the plate.

[0056] See also Figure 5 , Figure 5 Schematic diagram of the structure of the pressure ring F in another embodiment of the present invention.

[0057] In this embodiment, the adjusting member 300 further includes a connecting block 306, at least one gasket 302 is disposed between the first groove wall 102b and the connecting block 306, and the fastener 304 is sequentially passed through and connected to the connecting block 306, at least one gasket 302 and the first groove wall 102b.

[0058] In this embodiment, the connecting block 306 is a key component for connecting the gasket 302 and the first groove wall 102 b and cooperates with the fastener 304 to ensure a stable connection between the gasket 302 and the groove 102 .

[0059] The existence of the connection block 306 can transfer pressure, and the connection block 306 transfers the pressure of the fastener 304 to the gasket 302 and the groove 102 to ensure the stability of the entire system. At the same time, the connection block 306 can disperse the stress from the fastener 304 and reduce local stress concentration.

[0060] The material of the connection block 306 can be stainless steel. Stainless steel has good corrosion resistance and strength and is suitable for working in high pressure and humid environments.

[0061] You can also choose aluminum alloy, which is light and easy to process. If weight is a consideration, aluminum alloy is also a good choice.

[0062] During the matching process, the gasket 302 is first placed between the first groove wall 102b and the connecting block 306 to ensure that it is in close contact with both. Then, the fastener 304 (bolt, nut or screw) is passed through to connect the connecting block 306, at least one gasket 302 and the first groove wall 102b. The tightening of the fastener 304 firmly fixes the connecting block 306 in the groove 102, ensuring a stable connection between the gasket 302 and the groove 102, thereby improving the reliability of the entire system.

[0063] Continue reading Figure 5 In this embodiment, the groove 102 further has two second groove walls 102c that are arranged opposite to each other and extend from the groove opening 102a to the first groove wall 102b respectively. The connecting block 306 includes a first arm 306a and two second arms 306b. One side of the first arm 306a abuts against at least one gasket 302. The two second arms 306b extend from both ends of the first arm 306a along the second groove wall 102c in a direction away from the at least one gasket 302. There are two fasteners 304, and each fastener 304 is respectively arranged to penetrate and connect a second arm, the first arm 306a, at least one gasket 302 and the first groove wall 102b in sequence.

[0064] In this embodiment, the cooperation of the first arm 306a and the two second arms 306b forms a structure similar to a "concave" shape. The panel positioning assembly 200 is located between the two second arms 306b. This design has a guiding effect. The first arm 306a, as a part of the connecting block 306, can effectively guide the panel positioning assembly 200 through its shape and position to ensure its correct position in the groove 102.

[0065] During use, first, at least one gasket 302 is placed between the first slot wall 102b and the connecting block 306 to ensure that it is in close contact with both. Next, fasteners 304 (two bolts, nuts or screws) are sequentially inserted through and connected to a second arm, the first arm 306a, at least one gasket 302 and the first slot wall 102b. The fasteners 304 are tightened to fix the connecting block 306 in the groove 102.

[0066] In this embodiment, the guiding function of the first arm 306a ensures that the supporting part of the plate positioning assembly 200 matches the accurate positioning of the mold, avoids its displacement in the horizontal direction, and improves the dimensional accuracy of the molded product. At the same time, the existence of the connecting block 306 effectively fills the gap between the plate positioning assembly 200 and the first groove wall 102b through the two second arms 306b, ensuring that the plate will not accidentally collapse or deform during the molding process.

[0067] In addition to using gaskets 302 of different sizes to fill the gap in the aforementioned embodiment, the number of gaskets 302 can also be increased to accommodate a larger gap. For example, Figure 5 In this embodiment, the adjusting member 300 includes at least two gaskets 302 .

[0068] In this embodiment, two gaskets 302 are placed between the connecting block 306 and the first groove wall 102b. They fill the gap between the two to ensure a stable connection between the connecting block 306 and the groove 102. If there are irregular or uneven surfaces in the groove 102 or the groove wall, the gasket 302 can fill these uneven places to ensure that the support part of the plate positioning assembly 200 matches the accurate positioning of the mold. The combination of two gaskets 302 can accommodate more size changes.

[0069] In actual use, the size of the plate may vary. If a gasket 302 of a size corresponding to the plate is manufactured without changing the size, a large number of gaskets 302 of different sizes need to be manufactured, which will undoubtedly increase the cost. Therefore, in this embodiment, gaskets 302 of different sizes can be used to adjust the appropriate size in a compensation manner. Specifically, the thickness of at least one gasket 302 is greater than the thickness of another gasket 302; and / or,

[0070] The fastener 304 is a bolt or a screw.

[0071] In this embodiment, by using gaskets 302 of different thicknesses, we can adapt to the changes in the sizes of different panels. In this way, there is no need to make a special gasket 302 for each panel size, thereby reducing costs.

[0072] The thickness of at least one gasket 302 is greater than the thickness of another gasket 302. In this way, we can select a suitable gasket 302 combination according to specific needs. As for the selection of fasteners 304, bolts or screws can be used. These fasteners 304 will connect gaskets 302 of different thicknesses and connecting blocks 306.

[0073] In this embodiment, the different sizes of gaskets 302 allow us to fill the gaps of different widths caused by the varying sizes of the panels. In this way, we can better accommodate panels of different sizes. By using a small number of gaskets 302 of different sizes, the manufacturing cost can be reduced while ensuring a stable connection.

[0074] See also Figure 6 In this embodiment, the top surface of the adjusting member 300 is flush with the top surface of the edge clamp body 100 .

[0075] In this embodiment, the top surface of the adjusting member 300 is flush with the top surface of the edge clamp body 100 to ensure that the overall thickness remains consistent during the forming process. This is essential for accurate forming operations. Assume that the overall thickness of the edge clamp is 10 mm, and the thickness of the plate positioning assembly 200 is 2 mm. If the top surface of the adjusting member 300 is not flush with the top surface of the edge clamp body 100, the plate is likely to be embedded in the edge clamp during the stamping process, resulting in inaccurate forming.

[0076] In this embodiment, by ensuring that the adjusting member 300 is flush with the top surface of the edge clamp body 100 , the dimensional accuracy of the molded product can be improved.

[0077] See also Figure 7 , Figure 7 Schematic diagram of the structure of the blank holder F in another embodiment of the present invention.

[0078] In this embodiment, a boss 102d is provided in the groove 102, and the adjusting member 300 is supported on the boss 102d.

[0079] In this embodiment, a boss 102d is provided in the groove 102, mainly for bearing and supporting the adjusting member 300; as for the formation method of the boss 102d in the groove 102, it can be an integral molding, a detachable method, etc.; wherein, in the integral molding method, the boss 102d can be a part of the mold body, formed by an integral molding method. This means that when manufacturing the mold, the boss 102d is formed together with the edge clamp body 100 to ensure its stability and consistency.

[0080] Another way is to design the boss 102d as a detachable component. In this way, if the boss 102d needs to be replaced or adjusted, it can be easily disassembled and replaced.

[0081] In this embodiment, the presence of the boss 102d ensures that the adjusting member 300 will not sink due to the pressure of the upper mold and the plate during the molding process. It provides a stable support platform to keep the adjusting member 300 in the correct position. The design of the boss 102d ensures the stability of the adjusting member 300, prevents it from being affected by external pressure, helps to keep the supporting part of the plate positioning assembly 200 matched with the accurate positioning of the mold, and improves the dimensional accuracy of the molded product.

[0082] See also Figure 8 , Figure 8 It is a schematic diagram of the assembly structure of the edge holding block, the edge holding ring F, and the plate positioning assembly 200 in one embodiment of the utility model.

[0083] The utility model embodiment further proposes a lower mold, including a lower mold body, a plate positioning assembly 200 and the edge clamp block of the aforementioned embodiment. The specific structure of the edge clamp block refers to the above embodiment. Since the present lower mold adopts all the technical solutions of all the above embodiments, it has at least all the technical effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0084] Among them, a pressure ring F is provided on one side of the lower mold body, and a pressure block and a plate positioning assembly 200 are provided on the end of the pressure ring F facing away from the lower mold body. The plate positioning assembly 200 at least partially extends into the groove 102 of the pressure block, and the supporting part of the plate positioning assembly 200 can be used to support the sheet material to be formed.

[0085] In this embodiment, the edge clamping ring F is located on one side of the lower mold body, facing away from the edge clamping block and the plate positioning assembly 200. The function of the edge clamping ring F is to ensure that the sheet is accurately edge clamped during the forming process. The plate positioning assembly 200 at least partially extends into the groove 102 of the edge clamping block, and its support portion is used to support the sheet to be formed to ensure its correct positioning. It should be noted that in this embodiment, only the edge clamping block and edge clamping ring F of the plate positioning assembly 200 on one side of the mold are used as examples. In actual use, multiple groups need to be used in coordination.

[0086] In this embodiment, through the cooperation of the edge clamp ring F, the edge clamp block and the plate positioning assembly 200, the supporting part of the plate positioning assembly 200 ensures the correct position of the plate material, so that the plate can be accurately formed. The design of the edge clamp block groove 102 can ensure that the plate positioning assembly 200 will not be affected by external pressure during the forming process, thereby improving the stability of the entire system.

[0087] The embodiment of the utility model further proposes an aluminum hot forming mold, comprising an upper mold and the above-mentioned lower mold, wherein the edge holding block is arranged on a side of the lower mold body facing the upper mold.

[0088] In this embodiment, the edge pressing block is located on one side of the lower mold body, facing the upper mold. This design ensures that the sheet metal is accurately edge pressed during the forming process. The cooperation between the upper mold and the lower mold allows the sheet metal to be subjected to uniform pressure during the forming process, ensuring the stability of the entire forming process.

[0089] In this embodiment, precise forming operations can be achieved through the cooperation of the edge holding block, the upper die and the lower die, thereby improving the forming quality.

[0090] The above description is only a partial or preferred embodiment of the present invention. Neither the text nor the drawings can limit the scope of protection of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the overall concept of the present invention, or direct / indirect application in other related technical fields are included in the scope of protection of the present invention.

Claims

1. A pressure block, used in aluminum hot forming molds, characterized in that: include: A pressure block body, the pressure block body having a first side portion and a second side portion arranged opposite to each other at an interval, the pressure block body being formed with a groove extending from the second side portion toward the first side portion, the groove having a notch facing away from the first side portion and a first groove wall arranged opposite to the notch at an interval, the notch being used for allowing at least a part of the plate positioning assembly to extend into the groove so that the support portion of the plate positioning assembly can be used to support the plate material to be formed; An adjusting member is detachably mounted in the groove and extends from the first groove wall toward and away from the first side portion, so as to limit the dimension of the plate positioning assembly extending into the groove.

2. The edge pressure block according to claim 1, characterized in that: The adjustment member includes at least one washer and a fastener for locking the washer in the groove.

3. The edge pressure block according to claim 2, characterized in that: The adjusting member further comprises a connecting block, the at least one gasket is arranged between the first groove wall and the connecting block, and the fastener is sequentially passed through and connected with the connecting block, the at least one gasket and the first groove wall.

4. The edge pressure block according to claim 3, characterized in that: The groove also has two second groove walls that are arranged opposite to each other and extend from the groove opening to the first groove wall respectively. The connecting block includes a first branch arm and two second branch arms. One side of the first branch arm abuts against the at least one gasket. The two second branch arms extend from both ends of the first branch arm along the second groove wall in a direction away from the at least one gasket. The number of the fasteners is two, and each of the fasteners is respectively penetrated and connected with one second branch arm, the first branch arm, the at least one gasket and the first groove wall in sequence.

5. The edge clamp according to claim 4, characterized in that: The adjusting member includes at least two of the spacers.

6. The edge pressing block according to claim 5, characterized in that: The thickness of at least one of the gaskets is greater than the thickness of another gasket; and / or, The fastener is a bolt or a screw.

7. The edge pressing block according to claim 6, characterized in that: The top surface of the adjusting member is flush with the top surface of the edge clamp body.

8. The edge pressure block according to claim 7, characterized in that: A boss is provided in the groove, and the adjusting component is supported on the boss.

9. A lower mold, characterized in that: It comprises a lower die body, a plate positioning assembly and the edge clamp block as claimed in any one of claims 1 to 8, a edge clamp ring is arranged on one side of the lower die body, the edge clamp block and the plate positioning assembly are arranged on the end of the edge clamp ring facing away from the lower die body, the plate positioning assembly at least partially extends into the groove of the edge clamp block, and the supporting part of the plate positioning assembly can be used to support the sheet material to be formed.

10. An aluminum hot forming mold, characterized in that: It comprises an upper die and the lower die as described in claim 9, wherein the edge pressing block is arranged on a side of the lower die body facing the upper die.

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