Double-acting tool for plate deep drawing forming

Abstract

The utility model relates to the field of plate deep drawing forming tool structures, in particular to a double-acting tool for plate deep drawing forming, which comprises edge pressing sliding blocks, a fixing plate is arranged above the edge pressing sliding blocks, a hydraulic oil cylinder is arranged between the edge pressing sliding blocks, and a cylinder body of the hydraulic oil cylinder is connected with the fixing plate. Piston rods of the hydraulic oil cylinders are connected with the blank pressing sliding block, a synchronous double-acting blank pressing structure is adopted, the six hydraulic oil cylinders are evenly arranged around the deep drawing sliding block, oil ways of the hydraulic oil cylinders are connected with an oil way of main hydraulic equipment in series, and the tool can generate evenly-distributed pressure in the deep drawing process and stably and reliably act on the blank pressing sliding block; the tool is provided with the guide frame and the guide column, accurate guiding is provided for the blank pressing sliding block in the deep drawing process, blank pressing operation is uniform and consistent, the workpiece precision is greatly improved, and the production standard of high-precision products can be completely met.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal deep drawing forming tooling structure, and in particular to a double-action tooling for sheet metal deep drawing forming. Background Technology

[0002] With the rapid development of the automotive, aerospace, and high-speed rail industries, the use of thin-walled sheet metal products is increasing, and the precision requirements for parts are also rising. For certain deep-drawn sheet metal parts, a stable and reliable blank-holding force is essential. This places stricter demands on the double-action mechanical structure, requiring its key moving components to possess high reliability and synchronization capabilities. This double-action function becomes particularly important when blank-holding is asynchronous during the deep-drawing process. This invention innovatively develops a novel synchronous double-action blank-holding structure to address this issue. It boasts high reliability, a simple structure, and ease of maintenance, meeting the deep-drawing requirements for parts of different sizes and precision. Utility Model Content

[0003] The purpose of this utility model is to provide a double-action tooling for sheet metal deep drawing to solve the problem mentioned in the background art that traditional double-action tooling is difficult to provide stable and reliable blank holder force for deep-drawn sheet metal parts in the automotive, aerospace and high-speed rail fields, and cannot meet the high precision requirements of thin-walled sheet metal products.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a double-action tooling for sheet metal deep drawing, comprising a pressing slider, a fixed plate above the pressing slider, a hydraulic cylinder between the pressing sliders, the cylinder body of the hydraulic cylinder being connected to the fixed plate, and the piston rod of the hydraulic cylinder being connected to the pressing slider.

[0005] Furthermore, the fixed plate has a drawing slider in the middle, the pressing slider has a through groove in the middle, and the bottom end of the drawing slider extends into the through groove.

[0006] Furthermore, the six sets of hydraulic cylinders are arranged around the drawing block.

[0007] Furthermore, guide frames are provided at the four corners of the pressing slider, and positioning pins are provided at the connection between the pressing slider and the guide frames.

[0008] Furthermore, a guide column is movably installed inside the guide frame, and the top of the guide column is connected to the fixed plate.

[0009] Furthermore, the bottoms of the pressing slider and the drawing slider are connected to the drawing die, and the top of the fixing plate is connected to the main hydraulic equipment.

[0010] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0011] 1. Through the synchronous double-action pressing structure, six sets of hydraulic cylinders are arranged around the deep drawing slide, and the oil circuit is connected in series with the main hydraulic equipment oil circuit, which can generate uniform pressure on the pressing slide, providing a stable and reliable pressing force for deep drawing of parts of different sizes and precision.

[0012] 2. The guide frame and guide column work together to ensure the synchronization of the blank holder slider, so that the blank holder is uniform and consistent during the deep drawing process, improving the accuracy of the parts and meeting the high precision requirements. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0014] Figure 2 This is a front view of the entire utility model;

[0015] Figure 3 This is a structural diagram of the guide column of this utility model;

[0016] Figure 4 This is a bottom structural diagram of the present invention;

[0017] Figure 5 This is a diagram showing the connection between the stretching slider and the fixed plate of this utility model.

[0018] Reference numerals: 1. Pressing block; 2. Fixing plate; 3. Hydraulic cylinder; 4. Drawing block; 5. Guide frame; 6. Positioning pin; 7. Guide column. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0020] This utility model provides a technical solution: a double-action tooling for sheet metal deep drawing, such as... Figure 1 As shown, it includes a pressing slider 1, a fixed plate 2 above the pressing slider 1, a hydraulic cylinder 3 between the pressing sliders, the cylinder body of the hydraulic cylinder 3 is connected to the fixed plate 2, and the piston rod of the hydraulic cylinder 3 is connected to the pressing slider 1.

[0021] like Figure 5 As shown, the fixed plate 2 has a drawing slider 4 in the middle, the pressing slider 1 has a through groove in the middle, and the bottom end of the drawing slider 4 extends into the through groove.

[0022] like Figure 1 , Figure 2As shown, six sets of hydraulic cylinders 3 are arranged around the drawing block 4.

[0023] like Figure 3 As shown, guide frames 5 are provided at the four corners of the pressing slider 1, and positioning pins 6 are provided at the connection between the pressing slider 1 and the guide frames 5.

[0024] like Figure 2 , Figure 3 As shown, a guide column 7 is movably installed inside the guide frame 5, and the top of the guide column 7 is connected to the fixed plate 2.

[0025] like Figure 1 As shown, the bottoms of the blank holder slider 1 and the drawing slider 4 are connected to the drawing die, and the top of the fixed plate 2 is connected to the main hydraulic equipment.

[0026] In practice, the hydraulic cylinders 3, drawing sliders 4, and guide posts 7 are first installed on the fixed plate 2. The guide frame 5 and positioning pins 6 are installed on the blank holder sliders 1. The hydraulic cylinder body of the hydraulic cylinder 3 is connected to the fixed plate 2, and the piston rod of the hydraulic cylinder 3 is connected to the blank holder sliders 1. The blank holder sliders 1 and drawing sliders 4 are connected to the mold, and the fixed plate 2 is connected to the main hydraulic equipment. Before the initial operation, the six sets of hydraulic cylinders 3 drive the blank holder sliders 1 to extend actively. The downward movement of the main hydraulic equipment slider drives the hydraulic cylinders 3 to move downward. During the downward movement, the hydraulic cylinders 3 are passively pressurized. The oil circuits of the six sets of hydraulic cylinders 3 are connected in series with the oil circuits of the main hydraulic equipment. The hydraulic cylinders 3 generate uniform pressure acting on the blank holder sliders 1, which in turn exert force on the mold, generating pressure. The drawing sliders 4 follow the movement of the equipment, generating drawing force that acts on the mold, thus forming the drawn part. During this process, the guide frame 5 and guide posts 7 provide guidance, ensuring the synchronization and stability of the blank holder sliders 1 and 4.

[0027] It should be understood that the above-described specific embodiments of this utility model are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within the protection scope of this utility model. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A double action tooling for sheet metal deep drawing forming, characterized by: The blank holder slide (1) is provided with a fixed plate (2) above, the blank holder slide is equipped with hydraulic oil cylinder (3) between, the cylinder body of hydraulic oil cylinder (3) is connected with fixed plate (2), the piston rod of hydraulic oil cylinder (3) is connected with blank holder slide (1).

2. A double-action tooling for sheet metal deep drawing forming according to claim 1, characterized in that: The middle part of the fixed plate (2) is provided with a drawing slide (4), and the middle part of the blank holder slide (1) is provided with a through slot, and the bottom end of the drawing slide (4) extends into the through slot.

3. A double-action tooling for sheet metal deep drawing forming according to claim 2, characterized in that: Six sets of the hydraulic oil cylinder (3) are arranged around the drawing slide (4).

4. The double-action tooling for the sheet metal drawing forming according to claim 3, wherein: The blank holder slide (1) is provided with a guide frame (5) on the four corners, and the connecting part of the blank holder slide (1) and the guide frame (5) is provided with a positioning pin (6).

5. A double-action tooling for the deep drawing of sheet metal according to claim 4, characterized in that: The guide column (7) is movably arranged in the guide frame (5), and the top of the guide column (7) is connected with the fixed plate (2).

6. A double-action tooling for the deep drawing of sheet metal according to claim 5, characterized in that: The bottom of the blank holder slide (1) and the drawing slide (4) is connected with a drawing die, and the top of the fixed plate (2) is connected with a main hydraulic device.

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