Upsetting blank making tool for pull rod type products

Abstract

The utility model discloses an upsetting blank making tool for pull rod type products, which belongs to the technical field of forging processing, and comprises an upper die assembly and a lower die assembly, the upper die assembly comprises an upper die bottom plate, a material upsetting block and a bending upper die; the upsetting blocks and the bending upper dies are arranged below the upper die bottom plate and are distributed below the upper die bottom plate at intervals; the lower die assembly comprises a lower die bottom plate, an upsetting round pier and a bending lower die; the upsetting round pier and the bending lower die are both arranged above the lower die bottom plate, the upsetting round pier is correspondingly arranged below the upsetting block, the bending lower die is correspondingly arranged below the bending upper die, and the lower die assembly is characterized by further comprising a spring, an ejector plate and an ejector rod; and the ejector rod is arranged at the central position above the ejector plate. Compared with the prior art, the heating speed of the spring is effectively reduced, the supporting force to the ejector rod is improved, and the assembling and disassembling convenience of the die on an equipment workbench is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of forging processing, and more specifically, it belongs to a upsetting blanking tooling for rod-shaped products. Background Art

[0002] For most automotive rod-shaped products, the sizes of the ends and the rod bodies are different, and upsetting processing is required for blanking. The existing upsetting tooling has a single spring under the die cavity of the lower die for supporting the ejector rod, but there are the following defects: (1) The spring heats up quickly and the spring force is insufficient, so the operator needs to cool it with water; (2) The existing upsetting tooling adds a downward convex spring sleeve under the lower die bottom plate to support the spring. When the lower die assembly is installed on the equipment workbench, it needs to be erected or supported by choosing a groove on the workbench, etc., resulting in extremely inconvenient loading and unloading of the lower die assembly on the equipment workbench. Summary of the Invention

[0003] The purpose of the utility model is to overcome the deficiencies of the above traditional technologies, and provide an upsetting blanking tooling for rod-shaped products, achieving the purposes of reducing the heating speed of the spring, increasing the supporting force of the ejector rod, and improving the loading and unloading convenience of the die on the equipment workbench.

[0004] The upsetting blanking tooling for rod-shaped products provided by the utility model includes an upper die assembly and a lower die assembly. The upper die assembly includes an upper die bottom plate, a upsetting block, and a bending upper die; the upsetting block and the bending upper die are both arranged under the upper die bottom plate and are spaced apart under the upper die bottom plate; the lower die assembly includes a lower die bottom plate, a upsetting round pier, and a bending lower die; the upsetting round pier and the bending lower die are both arranged above the lower die bottom plate, the upsetting round pier is corresponding to the lower part of the upsetting block, and the bending lower die is corresponding to the lower part of the bending upper die. It is characterized in that the lower die assembly further includes a spring, an ejector plate, and an ejector rod; the ejector rod is arranged at the central position above the ejector plate; the spring is symmetrically arranged under the ejector plate with the ejector rod as the center; an installation groove matching the ejector plate is opened at the upper end of the lower die bottom plate; a placement hole matching the spring is opened at the bottom surface of the installation groove of the lower die bottom plate;

[0005] The spring is arranged in the placement hole; the ejector plate is arranged in the installation groove; the ejector plate is arranged to be liftable under the upsetting round pier; the ejector rod is arranged to be liftable in the lower part of the die cavity of the upsetting round pier.

[0006] Further, a lifting groove matching the ejector plate is opened at the lower end of the upsetting round pier; the lifting groove penetrates through the side surfaces of the upsetting round pier at both ends and is communicated with the die cavity; the ejector plate is located in the lifting groove; both ends of the ejector plate extend out of the upsetting round pier along the lifting groove.

[0007] A upsetting blanking tool for pull rod products provided by the present utility model increases the thickness of the lower die bottom plate compared with the existing tool. The spring is arranged in the placement hole of the lower die bottom plate, and a knockout plate is additionally arranged between the spring and the knockout rod. Through the knockout plate as a carrier, the springs are arranged on both sides of the knockout rod, extending the heat transfer path and reducing the heating speed of the springs. Moreover, the number of springs can be customized according to actual needs to ensure sufficient supporting force for the knockout rod. And, the bottom of the lower die bottom plate of the present utility model bears the spring by itself and is set as a plane, which is convenient for loading and unloading the lower die assembly on the equipment workbench. Brief Description of the Drawings

[0008] Figure 1 is a schematic structural diagram of the existing tool;

[0009] Figure 2 is a schematic structural diagram of the present utility model;

[0010] Figure 3 is a front view of the present utility model;

[0011] Figure 4 is from Figure 3 the A-A cross-sectional view led out;

[0012] Figure 5 is from Figure 3 the B-B cross-sectional view led out.

[0013] In the figure, the corresponding relationship between the component names and the drawing numbers is as follows:

[0014] 1. Upper die bottom plate; 2. Piercing block; 3. Bending upper die; 4. Lower die bottom plate; 401. Installation groove; 402. Placement hole; 5. Upsetting round pier; 501. Mold cavity; 502. Lifting groove; 6. Bending lower die; 7. Spring; 8. Knockout plate; 9. Knockout rod. Detailed Embodiment

[0015] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present utility model.

[0016] In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0017] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and defined, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0018] The present utility model provides a upsetting blanking tooling for pull rod products, including an upper die assembly and a lower die assembly. The upper die assembly includes an upper die bottom plate 1, a upsetting block 2, and a bending upper die 3. The upsetting block 2 and the bending upper die 3 are both fixedly installed below the upper die bottom plate 1 and are spaced apart below the upper die bottom plate 1.

[0019] The lower die assembly includes a lower die bottom plate 4, a upsetting round pier 5, a bending lower die 6, a spring 7, a knockout plate 8, and a knockout rod 9. The bending lower die 6 is fixedly installed above the lower die bottom plate 4, and the bending lower die 6 is located below the bending upper die 3. The upsetting round pier 5 is fixedly connected to the upper part of the lower die bottom plate 4 by screws, and the upsetting round pier 5 is located below the upsetting block 2. An installation groove 401 matching the knockout plate 8 is provided on the upper end surface of the lower die bottom plate 4, and a placement hole 402 matching the spring 7 is provided on the bottom surface of the installation groove 401 of the lower die bottom plate 4. The spring 7 is fixedly connected to the lower part of the knockout plate 8 by screws, the spring 7 is placed in the placement hole 402, and the knockout plate 8 is placed in the installation groove 401. A lifting groove 502 matching the knockout plate 8 is provided at the lower end of the upsetting round pier 5; the lifting groove 502 penetrates the side surfaces of the upsetting round pier 5 at both ends, and the lifting groove 502 communicates with the mold cavity 501. The part of the knockout plate 8 protruding from the installation groove 401 is located in the lifting groove 502; both ends of the knockout plate 8 extend out of the upsetting round pier 5 along the lifting groove 502. The knockout rod 9 is arranged at the lower part of the mold cavity 501 of the upsetting round pier 5, and the knockout rod 9 can move up and down along the mold cavity 501; the lower end of the knockout rod 9 contacts the center position above the knockout plate 8.

[0020] As can be seen from the above, compared with the existing tooling, the thickness of the lower die bottom plate 4 of the present utility model is increased, the spring 7 is arranged in the placement hole 402 of the lower die bottom plate 4, and a knockout plate 8 is additionally arranged between the spring 7 and the knockout rod 9. With the knockout plate 8 as a carrier, the spring 7 is arranged on both sides of the knockout rod 9, extending the heat transfer path and reducing the heating speed of the spring 7. Among them, the number of springs 7 is at least one pair, and the number of springs 7 and placement holes 402 can be customized according to actual needs to ensure that the knockout rod 9 obtains sufficient supporting force. The lower die bottom plate 4 of the present utility model bears the spring 7 by itself, and its bottom is set as a plane, which is convenient for the loading and unloading of the lower die assembly on the equipment workbench.

[0021] Specific usage mode and function of this embodiment:

[0022] When upsetting is carried out, first place the workpiece to be processed into the die cavity 501, and then control the lower movement of the upper die assembly. Use the upsetting block 2 to extrude the part of the workpiece that is higher than the upsetting round pier 5, so that the part of the workpiece that is higher than the upsetting round pier 5 is compressed and thickened under pressure. Among them, during the process of the upsetting block 2 extruding the workpiece, the workpiece moves downward under force, the workpiece drives the knockout rod 9 to move downward, the knockout rod 9 drives the knockout plate 8 to move downward, and the knockout plate 8 moves downward to compress the spring 7; after the upsetting deformation of the workpiece is completed, control the upper movement of the upper die assembly. During the process of the upsetting block 2 moving upward and leaving the workpiece, the workpiece, the knockout rod 9 and the knockout plate 8 lose the extrusion force, and the three move upward and reset under the action of the spring 7. Then take out the workpiece completed by upsetting from the upsetting round pier 5, install it on the bending lower die 6, and then control the lower movement of the upper die assembly. Use the bending upper die 3 to extrude the workpiece for bending processing. After the bending processing is completed, control the upper movement of the upper die assembly, and then the workpiece can be taken out of the tooling, thus completing the processing action of a workpiece on the tooling of the present utility model.

[0023] In summary, compared with the prior art, the present utility model effectively reduces the heating speed of the spring, improves the supporting force for the knockout rod, and improves the convenience of loading and unloading the die on the equipment workbench.

Claims

1. A roughing blanking tooling for tie rod products, comprising an upper die assembly and a lower die assembly, wherein the upper die assembly comprises an upper die bottom plate (1), a material block (2) and a bending upper die (3); the material block (2) and the bending upper die (3) are both arranged below the upper die bottom plate (1) and are spaced apart below the upper die bottom plate (1); the lower die assembly comprises a lower die bottom plate (4), a roughing round pier (5) and a bending lower die (6); the roughing round pier (5) and the bending lower die (6) are both arranged above the lower die bottom plate (4), the roughing round pier (5) corresponds to the below of the material block (2), and the bending lower die (6) corresponds to the below of the bending upper die (3), characterized in that: The lower die assembly further comprises a spring (7), a ejection plate (8) and an ejection rod (9); the ejection rod (9) is arranged at the center position above the ejection plate (8); the spring (7) is symmetrically arranged below the ejection plate (8) with the ejection rod (9) as the center; a mounting groove (401) matching the ejection plate (8) is formed at the upper end of the lower die bottom plate (4); and a placement hole (402) matching the spring (7) is formed on the bottom surface of the mounting groove (401) of the lower die bottom plate (4); The spring (7) is arranged in the placement hole (402); the ejector plate (8) is arranged in the installation groove (401); the ejector plate (8) is arranged to be lifted below the upsetting round pier (5); and the ejector rod (9) is arranged to be lifted below the die cavity (501) of the upsetting round pier (5).

2. The tooling for upsetting and blanking of tie rod products according to claim 1, characterized in that: The lower end of the upsetting round pier (5) is provided with a lifting groove (502) matching with the ejection plate (8); the lifting groove (502) penetrates the side surfaces of the upsetting round pier (5) at both ends thereof, and the lifting groove (502) is connected with the mold cavity (501); the ejection plate (8) is located in the lifting groove (502); and the two ends of the ejection plate (8) extend out of the upsetting round pier (5) along the lifting groove (502).

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