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Tooling and method for two-way reverse push thermoforming of sheet metal

A thermoforming and tooling technology, applied in the field of sheet thermoforming, can solve the problems affecting the service life and accuracy of the machine tool, the complex structure of the thermoforming machine tool, and the heavy transformation workload, so as to improve the service life, reduce damage, and reduce equipment transformation. cost effect

Active Publication Date: 2020-08-21
沈阳明日航材先进制造科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional pushback frame parts need to be formed on a thermoforming machine tool with this function. Since such parts account for a small proportion of titanium alloy plate parts, this function was not taken into account in the development of special thermoforming machine tools. It can only be rebuilt by remodeling the machine tool. On the one hand, the structure of the thermoforming machine tool is complex, and the transformation workload is huge, resulting in high transformation costs; The state of stress may affect the service life and accuracy of the machine tool

Method used

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  • Tooling and method for two-way reverse push thermoforming of sheet metal
  • Tooling and method for two-way reverse push thermoforming of sheet metal
  • Tooling and method for two-way reverse push thermoforming of sheet metal

Examples

Experimental program
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Effect test

specific Embodiment 1

[0032] A sheet metal bidirectional reverse push thermoforming tooling, including a high temperature device module and a normal temperature device module, such as figure 1 , 2 As shown, the room temperature device module includes a room temperature base 6, a cylinder mounting base 5, and a cylinder 7. The cylinder mounting base 5 is mounted on the room temperature base 6 and can move along the upper surface of the room temperature base 6, and the cylinder 7 is installed through the cylinder through a connecting shaft. Seat 5; the high-temperature device module includes a high-temperature base 2, a module frame 1, a first movable block 4. The module frame 1 is mounted on the high-temperature base 2 and can move along the upper surface of the high-temperature base 2, and the movable block 4 is installed in the module In the frame 1, the front view of the module frame is a back-shaped structure for clamping the module.

[0033] The first frame 11 of the module frame 1 includes an L-sh...

specific Embodiment 2

[0050] A sheet metal bidirectional reverse push thermoforming tooling module, such as Figure 4 As shown, it includes a high temperature device module, a normal temperature device module, a mold, and a working platform 110. The mold includes an upper mold 104, a lower mold 103, a reverse push mold 101, and a reverse push front mold 102. The mold is placed in the module frame 1, and the reverse push The rear mold 101 is provided with a third connection groove on the side adjacent to the fourth frame 12, and the side adjacent to the first frame 11 of the front mold 102 is provided with a fourth connection groove. The third connection groove is connected with the first frame. The number and positions of the grooves match, and the corresponding number of connecting pins 124 are connected. The fourth connecting groove matches the number and position of the second connecting groove, and the corresponding number of connecting pins 44 is connected.

[0051] The plug-in convex ring 52 on ...

specific Embodiment 3

[0061] A two-way reverse push thermoforming method for a plate, the mold includes a reverse push front mold and a reverse push back mold, including the following steps:

[0062] S1. The high temperature device module is heated together with the bed;

[0063] S2. During reverse push hot forming, open the furnace door of the machine tool, push the normal temperature device module to a designated position, and connect the high temperature device module and the normal temperature device module together;

[0064] S3. The oil cylinder drives the mold before the reverse push and the mold after the reverse push moves toward each other to complete the reverse push thermoforming;

[0065] S4. After forming, the module frame drives the reverse push mold to move backward, the oil cylinder drives the reverse push front mold to move forward, the reverse push front mold and the reverse push mold separate, and the parts are taken out.

[0066] The high temperature means that the temperature exceeds 500...

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Abstract

The invention discloses a bidirectional reverse-thrust hot-forming fixture for a plate. The bidirectional reverse-thrust hot-forming fixture for the plate comprises a high-temperature device module and a normal-temperature device module, wherein the normal-temperature device module comprises a normal-temperature base, an oil cylinder installation seat and an oil cylinder, the oil cylinder installation seat is installed on the normal-temperature base, and capable of moving along the upper surface of the normal-temperature base, and the oil cylinder penetrates through the oil cylinder installation seat through a connection shaft; and the high-temperature device module comprises a high-temperature base, a module frame and a first movable block, the module frame is installed on the high-temperature base, and capable of moving along the upper surface of the high-temperature base, the movable block is installed in the module frame, the module frame and the first movable block are used for clamping a die, and when the module frame is connected together with the oil cylinder installation seat and the oil cylinder, the oil cylinder pushes or pulls the first movable block, so that bidirectional reverse-thrust or unloading for the die is realized. The front-rear reverse-thrust die is driven to act through an action force and a counter-action force separately, so that the stress balance ofthe whole die is ensured.

Description

Technical field [0001] The present invention relates to the technical field of sheet hot forming, in particular to a sheet metal bidirectional reverse push hot forming tool and method. Background technique [0002] At present, the application of sheet materials is becoming more and more common, and the processing requirements for sheet materials are getting higher and higher. The processing methods for different sheet materials are different. Alloy sheets, such as titanium alloy sheets, require hot forming during processing because of their special properties. [0003] Among them, titanium alloy is one of the most important main structural materials for aerospace. The forming technology of titanium alloy sheet has always occupied an important position in aerospace sheet metal forming. Due to the particularity of titanium alloy materials, traditional cold working methods are difficult To achieve the forming of titanium alloy sheets, hot forming must be used. [0004] The research on ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D37/16B21D22/02B30B1/32
Inventor 雷鹍陈晓兵雷瀚张宪会
Owner 沈阳明日航材先进制造科技有限公司