Positioning mistake-proof and fool-proof structure of hydraulic forming die

Abstract

The utility model discloses a positioning mistake-proof and fool-proof structure of a hydraulic forming die, which belongs to the technical field of hydraulic forming dies, and comprises a female die body which is of a rotary body structure and is provided with a positioning pipe, and the inner wall of the positioning pipe is provided with a cavity; the first magnets are arranged in an annular array along the axis of the female die body; according to the utility model, through the matching between the female die body and the male die body, when the die assembly operation is carried out, the male die body is sleeved on the positioning pipe, the positioning column extends into the positioning pipe, and when the two second magnets on the male die body are not aligned with the first magnet which is magnetically adsorbed with the second magnets, the second magnets and the first magnet repel each other in magnetism; according to the fool-proof structure, the male die body is in a suspended state on the female die body, the male die body and the female die body are successfully assembled only by rotating the male die body and aligning the two second magnets with the first magnets magnetically attracted to the second magnets, the fool-proof structure is ingenious in design, and the die assembly efficiency is high.

Description

Technical Field

[0001] This utility model belongs to the field of hydraulic forming mold technology, and in particular relates to a positioning error-proof and foolproof structure for hydraulic forming molds. Background Technology

[0002] Hydraulic forming is a plastic forming technology that uses liquid or molds to shape workpieces; it is also known as fluid forming. It only requires a die or punch, with the liquid medium acting as either the die or punch, saving half the mold cost and processing time. Furthermore, the liquid as the punch can form many complex parts that cannot be formed by rigid molds.

[0003] Currently, positioning holes and positioning pins are set on the punch and die of hydraulic forming molds to play a foolproof guiding role during manual mold closing assembly. However, the positioning pins are protruding, and operators need to align the positioning holes and positioning pins before they can close the mold for assembly, which affects the efficiency of the mold closing operation. Utility Model Content

[0004] The purpose of this utility model is to provide a positioning and error-proof structure for hydraulic forming molds in order to solve the above-mentioned problems.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a hydraulic forming mold positioning error-proof and foolproof structure, comprising:

[0006] The die body is a rotating structure, and a positioning tube is provided on the die body. The inner wall of the positioning tube is provided with a cavity.

[0007] Multiple first magnets are arranged in a circular array along the axis of the die body, and the multiple first magnets are connected to the top of the positioning tube;

[0008] The punch body is a rotating structure. A clearance groove is provided on the punch body. Two second magnets are provided on the bottom wall of the clearance groove. The positioning tube is inserted into the clearance groove. The two second magnets magnetically attract two of the first magnets and magnetically repel the other first magnets. A positioning post is provided on the bottom wall of the clearance groove. A gap is left between the positioning post and the inner wall of the positioning tube. An air inlet channel is provided in the punch body.

[0009] As a further description of the above technical solution:

[0010] The two first magnets are arranged symmetrically.

[0011] As a further description of the above technical solution:

[0012] One end of the air intake channel extends to the bottom surface of the positioning post, and the other end of the air intake channel extends to the side wall of the punch body.

[0013] As a further description of the above technical solution:

[0014] The top surface of the positioning tube is in contact with the bottom surface of the clearance groove.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0016] In this invention, through the adaptation between the die body and the punch body, during the mold closing operation, the punch body is fitted onto the positioning tube, and the positioning post extends into the positioning tube. When the two second magnets on the punch body are not aligned with the first magnet that is magnetically attracted to them, the second magnets and the first magnet repel each other, causing the punch body to be suspended on the die body. Only by rotating the punch body, when the two second magnets are aligned with the first magnet that is magnetically attracted to them, the punch body and the die body are successfully closed. The foolproof structure design is ingenious and the mold closing efficiency is high. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a hydraulic forming die positioning and error prevention structure.

[0018] Figure 2 This is a cross-sectional view of a hydraulic forming die positioning and error-proofing structure.

[0019] Figure 3 An explosion-proof structure for positioning and error prevention of a hydraulic forming die. Figure 1 .

[0020] Figure 4 An explosion-proof structure for positioning and error prevention of a hydraulic forming die. Figure 2 .

[0021] Legend:

[0022] 1. Die body; 2. Positioning tube; 3. Cavity; 4. First magnet; 5. Punch body; 6. Clearing groove; 7. Second magnet; 8. Positioning pin; 9. Gap; 10. Air inlet channel. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4This utility model provides a technical solution: a positioning and error-proofing structure for a hydraulic forming die, comprising:

[0025] The die body 1 is a rotating structure. The die body 1 is provided with a positioning tube 2, and the inner wall of the positioning tube 2 is provided with a cavity 3.

[0026] Multiple first magnets 4 are arranged in a ring array along the axis of the die body 1, and the multiple first magnets 4 are connected to the top of the positioning tube 2.

[0027] The punch body 5 is a rotating structure. A clearance groove 6 is provided on the punch body 5. Two second magnets 7 are provided on the bottom wall of the clearance groove 6. The positioning tube 2 is inserted into the clearance groove 6. The two second magnets 7 magnetically attract two of the first magnets 4 and magnetically repel the other first magnets 4. A positioning post 8 is provided on the bottom wall of the clearance groove 6. A gap 9 is left between the positioning post 8 and the inner wall of the positioning tube 2. An air inlet channel 10 is provided inside the punch body 5.

[0028] The two first magnets 4 are arranged symmetrically.

[0029] One end of the air intake channel 10 extends to the bottom surface of the positioning post 8, and the other end of the air intake channel 10 extends to the side wall of the punch body 5.

[0030] The top surface of the positioning tube 2 is in contact with the bottom surface of the clearance groove 6.

[0031] Working principle: The fitting between the die body 1 and the punch body 5 is as follows: During the mold closing operation, the punch body 5 is fitted onto the positioning tube 2, and the positioning post 8 extends into the positioning tube 2. When the two second magnets 7 on the punch body 5 are not aligned with the first magnet 4 that is magnetically attracted to them, the second magnets 7 and the first magnet 4 repel each other, causing the punch body 5 to be suspended on the die body 1. By simply rotating the punch body 5, the two second magnets 7 are aligned with the first magnet 4 that is magnetically attracted to them, and the punch body 5 and the die body 1 are successfully closed. The foolproof structure design is ingenious and the mold closing efficiency is high.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A positioning error-proofing and fool-proofing structure of a hydroforming die, characterized by: The utility model relates to a die-casting machine, including: The concave mould body (1) is the structure of gyre, be provided with the positioning pipe (2) on the concave mould body (1), the inner wall of positioning pipe (2) is provided with cavity (3); Multiple first magnet (4) along the axis of concave mould body (1) annular array arrangement, and multiple first magnet (4) is connected in the top of positioning pipe (2); The convex mould body (5) is the structure of gyre, is provided with the avoidance slot (6) on the convex mould body (5), the bottom wall in the avoidance slot (6) is provided with two second magnet (7), positioning pipe (2) is inserted into the avoidance slot (6), two second magnet (7) magnetically adsorbed two first magnet (4) and multiple first magnet (4) repel each other, the bottom wall in the avoidance slot (6) is provided with the positioning column (8), and the clearance (9) between the inner wall of positioning pipe (2) and positioning column (8) is left, and the air inlet channel (10) is seted up in the convex mould body (5).

2. The positioning mistake-preventing and fool-preventing structure of a hydroforming die according to claim 1, characterized in that, Two first magnet (4) is symmetrically arranged.

3. The positioning mistake-preventing and fool-preventing structure of a hydroforming die according to claim 1, characterized in that, One end of air inlet channel (10) extends to the bottom surface of positioning column (8), and the other end of air inlet channel (10) extends to the side wall of convex mould body (5).

4. The positioning mistake-preventing and fool-preventing structure of a hydroforming die according to claim 1, characterized in that, The top surface of positioning pipe (2) is attached to the bottom surface in the avoidance slot (6).

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