Pressing cylinder and necking composite forming device

Abstract

The utility model belongs to the technical field of metal pressure machining, and discloses a pressing cylinder and necking composite forming device which comprises a punch, a module, a body and a lower die plate. The body is of a top opening structure, the two modules (2) are symmetrically arranged in an inner cavity of the body through pins, and the body is fixed to a lower die plate. A groove with a narrow opening and a wide inner cavity is formed between the two modules (2); the punch is arranged above the groove between the two modules (2), and the top of the punch is fixedly connected with the upper die plate. According to the utility model, the composite one-step forming of the pressing cylinder and the necking is realized. The part machining precision is improved, operation is convenient, the production efficiency is greatly improved, and mass production is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of metal pressure processing, in particular to a cylinder pressing and shrinking composite molding device. Background Art

[0002] A certain type of equipment requires a part that is formed by pressing the cylinder and shrinking the mouth, such as Figure 1-Figure 3 As shown in the figure, the part is made of 1mm thick Q235F steel plate, with three bending parts, the maximum size of the outer shape is 31.5×25×15, and the production batch is very large. The traditional manual method requires the use of simple molds and mandrels for processing and forming, which has a long manufacturing cycle and low production efficiency. In addition, the part size is small, the manual operation is difficult, and the operator's skills are required to be high, resulting in the parts produced. The appearance is not beautiful, the interchangeability is poor, and the precision of the parts is not easy to guarantee, resulting in a low part qualification rate. Utility Model Content

[0003] The technical problem to be solved by the utility model is: the traditional manual method requires the use of simple molds and mandrels for processing and forming, the manufacturing cycle is long, the production efficiency is low, and the parts are small in size, the manual operation is difficult, and the operator's skills are required to be high, resulting in the parts produced being unsightly in appearance, poor interchangeability, and the parts accuracy is not easy to guarantee, resulting in a low parts qualification rate.

[0004] In order to solve the above technical problems, the specific technical solutions of the utility model are as follows:

[0005] A device for composite molding of cylinder pressing and shrinking, comprising a punch 1, a module 2, a body 3 and a lower template 9; the body 3 is a top-opening structure, two modules 2 are symmetrically arranged in the inner cavity of the body through pins, and the body is fixed on the lower template 9; a groove with a narrow mouth and a wide inner cavity is formed between the two modules 2; the punch is arranged above the groove between the two modules 2, and the top of the punch is fixedly connected to the upper template.

[0006] The bottom outer surface of the module is a cylindrical surface, and the cylindrical surfaces of the two modules are in contact with each other.

[0007] Wherein, the module is rotatably connected to the body.

[0008] Furthermore, the inner side surface of the groove is in an arc shape.

[0009] Furthermore, a positioning plate is provided on the top of the body.

[0010] The utility model has the following advantages: it realizes the composite one-step molding of pressing the cylinder and shrinking the mouth. It improves the processing accuracy of parts, is easy to operate, greatly improves the production efficiency, and is convenient for mass production. At the same time, it has beautiful appearance and high consistency, realizes the free interchange of parts, and the qualified rate reaches 100%. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is the main view of the part;

[0012] Figure 2 It is the side view of the part;

[0013] Figure 3 A three-dimensional diagram of the parts;

[0014] Figure 4 This is the state diagram when the upper die descends at the beginning of the process;

[0015] Figure 5 This is the state diagram of the middle stage of the upper die descending process;

[0016] Figure 6 This is the state diagram when the upper die descends to the end of the process;

[0017] Marking instructions in the figure: 1. Punch; 2. Module; 3. Main body; 4. Screw; 5. Positioning plate; 6. Pin; 7. Sheet material; 9. Lower template. DETAILED DESCRIPTION

[0018] In order to better understand the purpose, structure and function of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings.

[0019] like Figure 4-Figure 6 As shown, the cylinder pressing and shrinking composite molding device of the utility model comprises a punch 1, a module 2, a body 3, a screw 4, a positioning plate 5, a pin 6 and a lower template 9.

[0020] When in use, first fix the two modules to the body with pins, then fix the cover plate to the body with bolts. After installing the bolts and pins, weld the body and cover plate to the lower template. Finally, fix the positioning plate to the body with screws (used to fix the position of the parts, adjustable) to form a lower die assembly. Before processing the parts, first fix the punch with the die handle fixing system provided by the machine tool, and then fix the lower die assembly on the workbench with the press plate and T-bolts provided by the machine tool to ensure that the punch is aligned with the middle of the two modules. At this time, adjust the stamping process parameters, start the machine tool, press the punch down, and make the steel plate smoothly enter the grooves in the left and right modules. During the pressing process, the modules on the left and right sides are driven to rotate toward the center, and finally the pressing and forming of the parts is completed. Compared with the existing technology, this device realizes the one-time processing of three arcs of the parts, with fast processing efficiency and high precision, and the parts have beautiful appearance and strong interchangeability, and the qualified rate is significantly improved.

[0021] During implementation, the upper die moves downward, the punch contacts the sheet material 7 and opens the two modules; the upper die continues to move downward, the punch pulls the workpiece into the module, forming the pressure cylinder (φ15) and realizing the shrinkage (R7) at the same time. When the upper die returns, the punch moves upward with the workpiece, the module rotates around the pin, and the punch and the formed workpiece are ejected from the die together, and the forming is completed. After removing the workpiece, the material can continue to be fed into the die, and the work can be continuously and efficiently operated, which is convenient for mass production.

[0022] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make several modifications and improvements without departing from the principle of the present invention, and these modifications and improvements should also be considered to belong to the protection scope of the present invention.

Claims

1. A device for composite molding of cylinder pressing and necking, characterized in that: It comprises a punch, a module, a body and a lower template; the body is a top-opening structure, two modules (2) are symmetrically arranged in the inner cavity of the body through pins, and the body is fixed on the lower template; a groove with a narrow mouth and a wide inner cavity is formed between the two modules (2); the punch is arranged above the groove between the two modules (2), and the top of the punch is fixedly connected to the upper template.

2. The device for composite molding of cylinder pressing and necking according to claim 1, characterized in that: The bottom outer surface of the module is a cylindrical surface, and the cylindrical surfaces of the two modules are in contact with each other.

3. The device for composite molding of cylinder pressing and necking according to claim 2, characterized in that: The module is rotatably connected to the body.

4. The device for composite molding of cylinder pressing and necking according to claim 1, characterized in that: The inner side surface of the groove is in an arc shape.

5. The device for composite molding of cylinder pressing and necking according to claim 1, characterized in that: A positioning plate is arranged on the top of the body.

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