Forming mold for synchronous thermal forming machining and demolding of multiple automobile parts

Abstract

The invention discloses a forming mold for synchronous thermal forming processing and demolding of a plurality of automobile parts. The forming mold comprises an upper mold and a lower mold, a plurality of core molds are arranged on the upper mold, the lower mold is arranged below the upper mold, the lower mold is provided with a core cavity corresponding to each core mold, and a plurality of jacking assemblies and a plurality of pressing assemblies are arranged on the lower mold; the pressing assembly comprises a plurality of first springs and a lifting frame, the lifting frame is movably connected to the lower die, the core cavity is located on the inner side of the lifting frame, the first springs are connected to the bottom of the lifting frame, the ends, away from the lifting frame, of the first springs are connected to the lower die, and a pressing frame is arranged at the position, corresponding to the lifting frame, of the upper die. The jacking assembly comprises at least one jacking rod and a connecting rod, the jacking rod is located in the core cavity, the jacking rod is movably connected to the lower die, and the jacking rod is connected with the lifting frame through the connecting rod. Compared with the prior art, forming machining of a plurality of parts can be achieved at a time, and the part machining efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of automotive parts processing mold technology, and in particular to a molding mold for simultaneous thermoforming and demolding of multiple automotive parts. Background Technology

[0002] As people's demands for vehicle safety performance continue to rise, the traditional approach to improving vehicle body safety has often been to increase the thickness of the sheet metal. While simple and convenient, this increases the overall vehicle weight, thus increasing manufacturing costs and energy consumption. Hot stamping parts have solved this problem, offering a 20%-40% increase in strength without altering the material thickness. However, their disadvantages include high tensile strength, susceptibility to twisting and rebound during forming, numerous mold processes, and high part development costs. Furthermore, traditionally, one mold is used to form one type of part, resulting in a large number of stamped parts in a vehicle. This leads to a wide variety of molds, significantly increasing mold investment costs. Moreover, the use of multiple mold types results in low overall production efficiency, hindering the improvement of part processing efficiency. Summary of the Invention

[0003] The present invention provides a molding die for simultaneous thermoforming and demolding of multiple automotive parts, which can realize the forming process of multiple parts at one time, thereby improving the part processing efficiency.

[0004] To achieve the above objectives, the present invention provides a molding die for simultaneous thermoforming and demolding of multiple automotive parts, comprising: an upper die and a lower die, wherein the upper die is provided with multiple cores, the lower die is disposed below the upper die, the lower die is provided with a core cavity corresponding to each core, and the lower die has multiple lifting components and multiple clamping components. The clamping assembly includes several first springs and a lifting frame. The lifting frame is movably connected to the lower mold. The core cavity is located inside the lifting frame. Several first springs are connected to the bottom of the lifting frame. The ends of the first springs away from the lifting frame are connected to the lower mold. The upper mold is provided with a clamping frame corresponding to the position of the lifting frame. The lifting assembly includes at least one push rod and a connecting rod. The push rod is located inside the core cavity and is movably connected to the lower mold. The push rod is connected to the lifting frame through the connecting rod.

[0005] As a further description of the above technical solution: The bottom of the lifting frame is provided with multiple movable rods, and a baffle is provided on each movable rod. The first spring passes through the movable rod, and one end of the first spring is connected to the baffle.

[0006] As a further description of the above technical solution: The lower mold is provided with a movable groove, and the lifting frame is located in the movable groove.

[0007] As a further description of the above technical solution: The lifting frame is provided with a mounting groove, and a cutter is provided in the mounting groove. The cutter is movably connected to the mounting groove.

[0008] As a further description of the above technical solution: The bottom of the cutter is connected to several second springs, and the bottom of the second springs is connected to the groove wall of the mounting groove.

[0009] As a further description of the above technical solution: The cutter is made of magnetic material, and an electromagnet is provided on the clamping frame.

[0010] As a further description of the above technical solution: The lower mold is provided with an exhaust groove, and the connecting rod is located inside the exhaust groove.

[0011] As a further description of the above technical solution: The top side of the top rod is provided with a first air hole, and the bottom side of the top rod is provided with a second air hole. The second air hole and the first air hole are connected through a channel inside the top rod.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. In this invention, multiple core shapes and core cavities can be set to form multiple parts at once, thereby improving the part processing efficiency.

[0013] 2. In this invention, by setting a first spring, a lifting frame, and a pressing frame, the heated raw material is placed on the lifting frame during processing. Then the upper mold descends and closes. The pressing frame first presses down on the raw material, thereby fixing the raw material and preventing it from moving during the stretching and forming process, which can improve the forming quality. Each core cavity is surrounded by a lifting frame, which can control the stretching of the raw material and reduce the impact on the forming of products in adjacent core cavities, thereby improving the forming quality.

[0014] 3. In this invention, the ejector rod is connected to the movable rod via a connecting rod. When the mold is closed, the movable rod moves down and simultaneously drives the ejector rod to move down, which can avoid the ejector rod affecting the molding process. When the mold is opened, under the action of the first spring, the movable rod rises and drives the ejector rod to rise, which can lift the product and facilitate demolding. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of a molding die used for the simultaneous thermoforming and demolding of multiple automotive parts.

[0017] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0018] Figure 3 This is a top view of the lower die in a molding die used for simultaneous thermoforming and demolding of multiple automotive parts.

[0019] Figure 4 This is a schematic diagram of the installation structure of the cutter in a molding die used for simultaneous thermoforming and demolding of multiple automotive parts.

[0020] Figure 5 This is a schematic diagram of the ejector pin structure in a molding die used for simultaneous thermoforming and demolding of multiple automotive parts.

[0021] Legend: 1. Upper mold; 2. Lower mold; 3. Core shape; 4. Core cavity; 5. First spring; 6. Lifting frame; 7. Pressing frame; 8. Push rod; 9. Connecting rod; 10. Movable rod; 11. Baffle; 12. Movable groove; 13. Mounting groove; 14. Cutter; 15. Second spring; 16. Electromagnet; 17. Venting groove; 18. First air hole; 19. Second air hole; 20. Channel. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] In the description of the embodiments of the present invention, it should be noted that the terms "upper" and "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention 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. Therefore, they should not be construed as limiting the present invention.

[0026] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Example 1:

[0027] Please see Figure 1-5 The present invention provides a molding die for simultaneous thermoforming and demolding of multiple automotive parts, comprising: an upper die 1 and a lower die 2, wherein the upper die 1 is provided with a plurality of cores 3, the lower die 2 is disposed below the upper die 1, the lower die 2 is provided with a core cavity 4 corresponding to each core 3, and the lower die 2 is provided with a plurality of lifting components and a plurality of clamping components. The clamping assembly includes several first springs 5 ​​and a lifting frame 6. The lifting frame 6 is movably connected to the lower mold 2. The core cavity 4 is located inside the lifting frame 6. Several first springs 5 ​​are connected to the bottom of the lifting frame 6. The end of the first spring 5 away from the lifting frame 6 is connected to the lower mold 2. The upper mold 1 is provided with a clamping frame 7 corresponding to the position of the lifting frame 6. The lifting assembly includes at least one push rod 8 and a connecting rod 9. The push rod is located inside the core cavity 4. The push rod 8 is movably connected to the lower mold 2. The push rod 8 is connected to the lifting frame 6 through the connecting rod 9.

[0028] Therefore, due to the adoption of the above technical solution, the beneficial effects of the present invention are as follows: Multiple core shapes and cavities can be used to form multiple parts at once, improving part processing efficiency. Through the arrangement of the first spring, lifting frame, and clamping frame, during processing, the heated raw material is placed on the lifting frame, then the upper mold descends and closes. The clamping frame first presses down on the raw material, thus fixing it and preventing it from moving during the stretching and forming process, improving molding quality. Each core cavity is surrounded by a lifting frame, which controls the stretching of the raw material and reduces the impact on the molding of products in adjacent core cavities, further improving molding quality. The ejector rod is connected to the movable rod via a connecting rod. When the mold closes, the movable rod moves downwards, simultaneously driving the ejector rod downwards, preventing the ejector rod from affecting the molding process. When the mold opens, under the action of the first spring, the movable rod rises, driving the ejector rod upwards, which can lift the product for easy demolding. Example 2:

[0029] See Figure 1-5 The figure shows a molding die provided by Embodiment 2 of the present invention for simultaneous thermoforming and demolding of multiple automotive parts. This embodiment further improves upon the previous embodiment by providing the following technical solution: Multiple movable rods 10 are provided at the bottom of the lifting frame 6, and baffles 11 are provided on the movable rods 10. A first spring 5 passes through the movable rods 10, and one end of the first spring 5 is connected to the baffle 11. An installation space for the first spring and movable rods is provided on the lower mold. One end of the first spring is fixedly connected to the lower mold, and the other end is fixedly connected to the baffle, facilitating control of the vertical movement of the lifting frame. Example 3:

[0030] See Figure 1-5 The figure shows a molding die provided by Embodiment 3 of the present invention for simultaneous thermoforming and demolding of multiple automotive parts. This embodiment further improves upon the previous embodiments by providing the following technical solution: a movable groove 12 is provided on the lower mold 2, and the lifting frame 6 is located within the movable groove 12. During mold closing, the lifting frame is located within the movable groove, which avoids interference with the part forming process. Example 4:

[0031] See Figure 4The figure shows a molding die provided by Embodiment 4 of the present invention for simultaneous thermoforming and demolding of multiple automotive parts. This embodiment further improves upon the previous embodiments by providing the following technical solutions: The lifting frame 6 is provided with a mounting groove 13, and a cutter 14 is disposed within the mounting groove 13, movably connected to the mounting groove 13. Several second springs 15 are connected to the bottom of the cutter 14, and the bottoms of the second springs 15 are connected to the groove wall of the mounting groove 13. The cutter 14 is made of a magnetic material, and an electromagnet 16 is provided on the clamping frame 7. When the part is made of plastic, energizing the electromagnet allows the cutter to overcome the spring force and move upward, cutting the molded part from the raw material without subsequent processing or correction, thus improving production efficiency. Example 5:

[0032] See Figure 1-5 The figure shows a molding die for simultaneous thermoforming and demolding of multiple automotive parts, provided by Embodiment 5 of the present invention. This embodiment further improves upon the previous embodiments by providing the following technical solutions: The lower mold 2 is provided with an venting groove 17, and the connecting rod 9 is located within the venting groove 17. The top side of the ejector rod 8 is provided with a first air hole 18, and the lower side of the ejector rod 8 is provided with a second air hole 19. The second air hole 19 communicates with the first air hole 18 through a channel 20 inside the ejector rod 8. The first air hole is located on the side wall to prevent wrinkles from forming on the parts at the first air hole. The second air hole is located on the side wall to not obstruct the connection between the ejector rod and the connecting rod. Through the first and second air holes, the gas in the core cavity can be discharged in a timely manner, preventing the gas from affecting the product molding and improving the quality of the product molding.

[0033] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A molding die for simultaneous thermoforming and demolding of multiple automotive parts, characterized in that... It includes an upper mold and a lower mold. The upper mold is provided with multiple core shapes, and the lower mold is located below the upper mold. The lower mold is provided with a core cavity for each core shape. The lower mold has multiple lifting components and multiple pressing components. The clamping assembly includes several first springs and a lifting frame. The lifting frame is movably connected to the lower mold. The core cavity is located inside the lifting frame. Several first springs are connected to the bottom of the lifting frame. The ends of the first springs away from the lifting frame are connected to the lower mold. The upper mold is provided with a clamping frame corresponding to the position of the lifting frame. The lifting assembly includes at least one push rod and a connecting rod. The push rod is located inside the core cavity and is movably connected to the lower mold. The push rod is connected to the lifting frame through the connecting rod.

2. A molding die for simultaneous thermoforming and demolding of multiple automotive parts according to claim 1, characterized in that... The bottom of the lifting frame is provided with multiple movable rods, and a baffle is provided on each movable rod. The first spring passes through the movable rod, and one end of the first spring is connected to the baffle.

3. A molding die for simultaneous thermoforming and demolding of multiple automotive parts according to claim 1, characterized in that... The lower mold is provided with a movable groove, and the lifting frame is located in the movable groove.

4. A molding die for simultaneous thermoforming and demolding of multiple automotive parts according to claim 1, characterized in that... The lifting frame is provided with a mounting groove, and a cutter is provided in the mounting groove. The cutter is movably connected to the mounting groove.

5. A molding die for simultaneous thermoforming and demolding of multiple automotive parts according to claim 4, characterized in that... The bottom of the cutter is connected to several second springs, and the bottom of the second springs is connected to the groove wall of the mounting groove.

6. A molding die for simultaneous thermoforming and demolding of multiple automotive parts according to claim 5, characterized in that... The cutter is made of magnetic material, and an electromagnet is provided on the clamping frame.

7. A molding die for simultaneous thermoforming and demolding of multiple automotive parts according to claim 1, characterized in that... The lower mold is provided with an exhaust groove, and the connecting rod is located in the exhaust groove.

8. A molding die for simultaneous thermoforming and demolding of multiple automotive parts according to claim 1, characterized in that... The top side of the top rod is provided with a first air hole, and the bottom side of the top rod is provided with a second air hole. The second air hole and the first air hole are connected through a channel inside the top rod.

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