Hot forging die blank die
By employing upper and lower die assemblies and a hydraulically driven extrusion assembly in the hot forging die blank, the problems of flash and precision in the existing hot forging die blank are solved, and efficient and precise copper rod forming is achieved.
Patent Information
- Application Number
- CN202520125272.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-01-20
AI Technical Summary
Existing hot forging die blanks suffer from severe flash, poor precision, significant copper material waste, and low production efficiency during the stamping process.
The design employs upper and lower die components, with a hot forging die blank groove and an extrusion head moving groove. The copper rod is directly extruded and formed into a hot forging die blank through a hydraulically driven extrusion component.
It enables the production of hot forging die blanks with no flash, high precision, and high extrusion efficiency, reducing copper waste and improving production efficiency.
Smart Images
Figure CN223718227U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of forging die technology, and in particular relates to a hot forging die blank. Background Technology
[0002] In the production process of hot forging die blanks, the first step is to stamp the cut and heated copper rods into shape using a punch press. However, the existing punch press design usually uses a cam to drive the punch bar to stamp the copper rods, and the mechanical force of the punch press is used for stamping. This results in a serious flash phenomenon in the stamped hot forging die blanks, and the interface of the hot forging die blanks often appears elliptical. The production accuracy of hot forging die blanks is poor. The above stamping method also results in a serious waste of copper material, and the subsequent machining is also time-consuming and inefficient. Utility Model Content
[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a hot forging die blank that can basically guarantee no flash, high precision, and high extrusion efficiency.
[0004] The objective of this invention is achieved through the following technical solution: A hot forging die blank includes an upper die assembly, a lower die assembly, and an extrusion assembly. Both the upper and lower die assemblies have hot forging die blank grooves and extrusion head moving grooves on their opposite surfaces. The extrusion head moving groove is connected to one or both opposite ends of the hot forging die blank groove. After the upper and lower die assemblies are closed, the two hot forging die blank grooves form a hot forging die blank cavity, and the two extrusion head moving grooves form an extrusion head moving cavity. The extrusion assembly is located on one side of the extrusion head moving groove. The extrusion assembly is powered by a hydraulic drive unit, and the extrusion head of the extrusion assembly moves within the extrusion head moving groove, extruding the copper rod within the hot forging die blank groove into a hot forging die blank.
[0005] The beneficial effects of this utility model are as follows: Compared with the prior art, by setting up upper and lower die components, and setting up a hot forging die blank cavity and an extrusion head moving cavity inside them, the extrusion head on the extrusion component can directly slide back and forth through the extrusion head moving cavity and extrude the copper rod into a hot forging die blank; it has the advantages of having virtually no flash after extrusion forming, high precision and high extrusion efficiency.
[0006] As preferred, the upper die assembly comprises an upper ejector block, an upper die frame and an upper die, the upper ejector block is connected with the upper die and is installed at the center of the upper die frame, the hot forging blank groove and the extrusion head moving groove are both arranged on the die closing surface of the upper die, and the upper die frame is provided with an oil outlet hole and a guide column hole; through the arrangement of the above structure, the die closing with the lower die assembly is facilitated, and the upper die frame is provided with an oil outlet hole and a guide column hole, the oil outlet hole makes the die closing and extrusion lubrication between the upper and lower die assemblies better, and the guide column hole makes the die closing guiding between the upper and lower die assemblies better.
[0007] As preferred, the lower die assembly comprises a lower ejector block, a lower die frame and a lower die, the lower ejector block is connected with the lower die and is installed at the center of the lower die frame, the hot forging blank groove and the extrusion head moving groove are both arranged on the die closing surface of the lower die, and the lower die frame is provided with an oil outlet hole and a guide column hole; through the arrangement of the above structure, the die closing with the upper die assembly is facilitated, and the lower die frame is provided with an oil outlet hole and a guide column hole, the oil outlet hole makes the die closing and extrusion lubrication between the upper and lower die assemblies better, and the guide column hole makes the die closing guiding between the upper and lower die assemblies better.
[0008] As preferred, the extrusion assembly comprises an extrusion head, a limiting block and a sliding block, one end of the extrusion head is inserted and limited on the limiting block, and the other end of the extrusion head is movably arranged in the extrusion head moving groove; the limiting block is fixedly installed on the sliding block, and the sliding block is fixedly connected with the driving end of the hydraulic drive unit; through the arrangement of the above structure, the disassembly and assembly between each other are more convenient, the gap or distance is more convenient to adjust, and the extrusion head or the limiting block is more convenient to replace.
[0009] As preferred, one end of the extrusion head is provided with a limiting base, the limiting block inserted and limited with the limiting base is provided with a limiting groove, and one end of the extrusion head is limited and fixed in the limiting groove of the limiting block through the limiting base; through the arrangement of the above structure, the distance of the extrusion head entering the extrusion head moving groove can be adjusted by replacing the size of the limiting base, so that hot forging blanks of different sizes can be extruded. BRIEF DESCRIPTION OF DRAWINGS
[0010] Fig. 1 It is a three-dimensional structure schematic view of the hot forging blank die of the utility model.
[0011] Fig. 2 It is a structure schematic view between the extrusion assembly and the lower die assembly of the utility model.
[0012] Fig. 3 It is a structure schematic view between the extrusion head and the limiting block of the utility model.
[0013] Fig. 4 It is a three-dimensional structure schematic view of the extrusion head of the utility model.
[0014] Fig. 5 It is the limit block three-dimensional structure schematic diagram of the utility model.
[0015] The reference signs in the drawings are as follows: 100, upper die assembly; 200, lower die assembly; 300, extrusion assembly; 400, hot forging die blank groove; 500, extrusion head moving groove; 600, oil outlet hole; 700, guide column hole; 101, upper ejector block; 102, upper die frame; 103, upper die; 201, lower ejector block; 202, lower die frame; 203, lower die; 301, extrusion head; 302, limit block; 303, sliding block; 304, limit base; 305, limit groove. DETAILED DESCRIPTION
[0016] The utility model will be introduced in detail below in combination with the drawings: as shown in the drawings, Figs. 1 to 5 The utility model discloses a hot forging die blank mould, which comprises an upper die assembly, a lower die assembly and an extrusion assembly, the two opposite surfaces of the upper die assembly and the lower die assembly are respectively provided with a hot forging die blank groove and an extrusion head moving groove, the extrusion head moving groove is communicated with one end or two opposite ends of the hot forging die blank groove, after the upper die assembly and the lower die assembly are closed, the two hot forging die blank grooves form a hot forging die blank cavity, and the two extrusion head moving grooves form an extrusion head moving cavity, the extrusion assembly is located at one side of the extrusion head moving groove, the extrusion assembly is driven by a hydraulic driving unit, the extrusion head of the extrusion assembly moves in the extrusion head moving groove, and the copper bar in the hot forging die blank groove is extruded and formed into a hot forging die blank.
[0017] The hot forging die blank mould can be one-out-one or one-out-two or more, for example, one-out-one, the hot forging die blank cavity is one, the extrusion head moving cavity is one or two, when one is arranged, L-shaped bent pipe forming extrusion is realized, when two are arranged and symmetrically distributed, three-way pipe forming extrusion is realized, for example, one-out-two, the hot forging die blank cavity is two, the extrusion head moving cavity is two or four, when two are arranged and located at the same side, L-shaped bent pipe forming extrusion is realized, when four are arranged and symmetrically distributed, three-way pipe forming extrusion is realized.
[0018] The upper die assembly comprises an upper ejector block, an upper die frame and an upper die, the upper ejector block is connected with the upper die and is installed at the center of the upper die frame, the hot forging die blank groove and the extrusion head moving groove are arranged on the die closing surface of the upper die, and the upper die frame is provided with an oil outlet hole and a guide column hole.
[0019] The lower die assembly 200 comprises a lower ejector block 201, a lower die frame 202 and a lower die 203, the lower ejector block 201 is connected with the lower die 203 and is installed at the center of the lower die frame 202, the hot forging die cavity 400 and the extrusion head moving groove 500 are both arranged on the die closing surface of the lower die 203, and the lower die frame 202 is provided with an oil outlet hole 600 and a guide column hole 700.
[0020] The extrusion assembly 300 comprises an extrusion head 301, a limiting block 302 and a sliding block 303, one end of the extrusion head 301 is inserted and limited on the limiting block 302, and the other end of the extrusion head 301 is movably arranged in the extrusion head moving groove 500; the limiting block 302 is fixedly installed on the sliding block 303, and the sliding block 303 is fixedly connected with the driving end of the hydraulic driving unit.
[0021] One end of the extrusion head 301 is provided with a limiting base 304, the limiting block 302, which is inserted and limited with the limiting base 304, is provided with a limiting groove 305, and one end of the extrusion head 301 is limited and fixed in the limiting groove 305 on the limiting block 302 through the limiting base 304.
[0022] The working principle of the utility model is as follows: firstly, the copper bar is cut and heated section by section, and the heated copper bar is placed on the hot forging die cavity 400 of the lower die 203 through the mechanical hand; then, the upper and lower die assemblies are closed, and the extrusion head 301 is extruded into the extrusion head moving cavity through the driving end of the hydraulic driving unit, and the copper bar is extruded and formed into a hot forging die blank; finally, the upper and lower die assemblies are opened, the hot forging die blank is adsorbed on the upper die 103, and the hot forging die blank is lifted through the ejector pin.
[0023] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A hot swage preform die comprising an upper die assembly (100), a lower die assembly (200) and an extrusion assembly (300), characterised in that: Two opposite surfaces of the upper die assembly (100) and the lower die assembly (200) are provided with hot forging blank grooves (400) and extrusion head moving grooves (500), the extrusion head moving grooves (500) are in communication with one end or two opposite ends of the hot forging blank grooves (400), after the upper die assembly (100) and the lower die assembly (200) are closed, the two hot forging blank grooves (400) form a hot forging blank cavity, and the two extrusion head moving grooves (500) form an extrusion head moving cavity; the extrusion assembly (300) is located on one side of the extrusion head moving groove (500), the extrusion assembly (300) is powered by a hydraulic drive unit, and the extrusion head (301) of the extrusion assembly (300) moves in the extrusion head moving groove (500) and extrudes a copper bar in the hot forging blank groove (400) to form a hot forging blank.
2. The hot swage preform mold of claim 1, wherein: The upper die assembly (100) comprises an upper ejector block (101), an upper die frame (102) and an upper die (103), the upper ejector block (101) is connected with the upper die (103) and is installed at the center of the upper die frame (102), the hot forging blank groove (400) and the extrusion head moving groove (500) are both arranged on the closing surface of the upper die (103), and the upper die frame (102) is provided with an oil outlet hole (600) and a guide column hole (700).
3. The hot swage preform mold of claim 1, wherein: The lower die assembly (200) comprises a lower ejector block (201), a lower die frame (202) and a lower die (203), the lower ejector block (201) is connected with the lower die (203) and is installed at the center of the lower die frame (202), the hot forging blank groove (400) and the extrusion head moving groove (500) are both arranged on the closing surface of the lower die (203), and the lower die frame (202) is provided with an oil outlet hole (600) and a guide column hole (700).
4. The hot swage preform mold of claim 1, wherein: The extrusion assembly (300) comprises an extrusion head (301), a limiting block (302) and a sliding block (303), one end of the extrusion head (301) is inserted and limited on the limiting block (302), and the other end of the extrusion head (301) moves in the extrusion head moving groove (500); the limiting block (302) is installed and fixed on the sliding block (303), and the sliding block (303) is fixedly connected with the driving end of the hydraulic drive unit.
5. The hot swage preform mold of claim 4, wherein: One end of the extrusion head (301) is provided with a limiting base (304), the limiting block (302) which is inserted and limited with the limiting base (304) is provided with a limiting groove (305), and one end of the extrusion head (301) is limited and fixed in the limiting groove (305) of the limiting block (302) through the limiting base (304).