CN210848161U

CN210848161U - Automobile inner core forging forming die

Info

Publication number: CN210848161U
Application number: CN201921712150.XU
Authority: CN
Inventors: 吴斌
Original assignee: Wuxi Institute of Technology
Current assignee: Wuxi Institute of Technology
Priority date: 2019-10-14
Filing date: 2019-10-14
Publication date: 2020-06-26
Anticipated expiration: 2029-10-14

Abstract

The utility model provides an automobile inner core forging forming die, which comprises a lower die holder, a lower module, an upper die holder and an upper module, wherein the lower module is correspondingly arranged on the lower die holder, the upper module is arranged on the upper die holder, and the upper module and the corresponding upper die holder, and the lower module and the lower die holder are assembled in a wedge fit manner; the upper end surfaces of the lower die block and the upper die block are provided with corresponding die bores, ejector rod through holes are formed in the centers of the die bores, and two die cavities used for forging the automobile inner core are formed between the corresponding die bores. The assembling is realized through the cooperation of a tapered wedge with inclination, so that the designed mold structure is more convenient to clamp. The utility model discloses simple structure, convenient to use, the large-scale production high-quality automobile inner core of being convenient for.

Description

Automobile inner core forging forming die

Technical Field

The utility model relates to a forging equipment technical field, concretely relates to car inner core forges forming die.

Background

209 inner core is the main part of automobile shock absorber, and the automobile often need the bumper shock absorber to absorb in order to cushion the vibrations that produce because ground undulation, and the vibrations are more intense in the process of automobile acceleration so that reach good travelling comfort, is usually used in vehicle suspension system shock-absorbing structure, and it usually comprises two systems of spring and attenuator, and the mutual influence interaction between two systems, the bumper shock absorber is the system of the vibration that the automobile rebounded after shaking and through absorbing the energy of road surface impact. Under the rapid development of the automobile industry, the demand of automobiles is increased correspondingly, and the demand of 209 inner cores, namely the shock absorber part, is also increased.

The forging die is a die in which a metal is heated to be softened. Then, the molded product is placed in a mold, and the molded product is once molded by closing the upper and lower molds of the mold, sometimes requiring a plurality of times. The forging and the casting are different in that: the casting is to directly pour heated molten metal into a model, and the die forging is performed by closing an upper die and a lower die and is subjected to extrusion force in the forming process, so that the structure and the mechanical property of the die forging are better than those of a cast part. Important parts with high load and severe working conditions in related machines are mainly forged pieces except for plates, sections or welding pieces which are simple in shape and can be rolled. The forging die is a tool capable of forming a blank into a die forging. The forging die is key technological equipment necessary in die forging production, is a tool required to be used in each stroke of equipment, and plays a role in lifting weight in die forging production. Common forging methods include free forging, die forging and the like. The forging is a processing method for applying pressure to a metal blank of a forging to enable the metal blank to generate plastic deformation so as to obtain the forging with certain mechanical property and certain shape and size, the defects of as-cast porosity and the like generated in the smelting process of metal can be eliminated through forging, the microstructure is optimized, and meanwhile, the complete metal streamline is saved.

After the forging die in the prior art is demolded, a forged piece is usually manually dismounted from the die, so that the labor intensity of workers is increased, and if the forged piece cannot be dismounted from the die in time, subsequent feeding is influenced, and the demolding efficiency and the forging efficiency are reduced.

SUMMERY OF THE UTILITY MODEL

In order to solve the defect that exists among the prior art, the utility model provides a can reduce artifical intensity of labour, realize the automatic car inner core of drawing of patterns and forge forming die.

The utility model adopts the technical proposal that: a forging forming die for an automobile inner core comprises a lower die holder, a lower die block, an upper die holder and an upper die block, wherein the lower die holder is correspondingly provided with the lower die block, the upper die holder is provided with the upper die block, and the upper die block and the corresponding upper die holder, and the lower die block and the lower die holder are assembled in a matched mode through tapered wedges; when the automobile inner core is forged and formed, the lower die block and the upper die block are closed, two die cavities for forging the automobile inner core are formed between the lower die block and the upper die block, and the two die cavities are symmetrically distributed along the center line of the forging and forming die.

A dovetail groove is formed in the lower die base, a top block assembly hole I, a top block assembly hole II and a positioning pin positioning hole I are formed in the dovetail groove, the top block I is arranged in the top block assembly hole I and is in clearance fit with the lower die base, and a top rod I is fixedly arranged on the top block I; the ejector block II is arranged in the ejector block assembling hole II and is in clearance fit with the lower die holder, and an ejector rod II is fixedly arranged on the ejector block II; the upper end face of the lower die block is provided with two die chambers, the center positions of the die chambers are respectively provided with an ejector rod through hole I and an ejector rod through hole II, the lower end face of the lower die block is provided with a positioning pin groove I, the lower end of the lower die block is arranged in a dovetail groove of the lower die base, a gap is formed between one side of the lower die block and the inner wall of the opposite side of the dovetail groove, and the lower die block is inserted into the gap through a wedge I for matching assembly; the ejector rod I extends into the ejector rod through hole I, and the ejector rod II extends into the ejector rod through hole II; and a positioning pin I is arranged in the positioning pin positioning hole I, the positioning pin I comprises a cylindrical end and a base, the cylindrical end of the positioning pin I is positioned in the positioning pin positioning hole I or extends out of the lower die base through the positioning pin positioning hole I to be abutted against the ejector device, and the base of the positioning pin I extends into the positioning pin groove I. Clearance fit between locating pin I cylinder end and the locating pin locating hole I, clearance fit between locating pin I base and the locating pin groove I, for the axial location of lower mould like this, guarantee not unbalance loading when forging, protection forging equipment, extension equipment life.

The upper die holder is provided with a dovetail groove, the dovetail groove is internally provided with a top block assembly hole III, a top block assembly hole IV and a positioning pin positioning hole II, the top block III is arranged in the top block assembly hole III and is in clearance fit with the upper die holder, and a top rod III is fixedly arranged on the top block III; the ejector block IV is arranged in the ejector block assembling hole IV and is in clearance fit with the upper die base, and an ejector rod IV is fixedly arranged on the ejector block IV; the lower end face of the upper module is provided with two cavities I matched with the cavities on the upper end face of the lower module, the center of each cavity I is provided with a mandril through hole III and a mandril through hole IV, the upper end face of the upper module is provided with a positioning pin groove II, the lower end of the upper module is arranged in a dovetail groove of the upper die base, a gap is formed between one side of the upper module and the inner wall of the opposite side of the dovetail groove, and the upper module is inserted into the gap through a wedge II for matching assembly; the ejector rod III extends into the ejector rod through hole III, and the ejector rod IV extends into the ejector rod through hole IV; and a positioning pin II is arranged in the positioning pin positioning hole II, the positioning pin II comprises a cylindrical end and a base, the cylindrical end of the positioning pin II extends out of the upper die base through the positioning pin positioning hole II or the positioning pin positioning hole II to be abutted against the ejector device, and the base of the positioning pin II extends into the positioning pin groove II. Clearance fit between locating pin II cylinder end and the locating pin locating hole II, clearance fit between locating pin II base and the locating pin groove II, give the mould axial and play the location like this, guarantee not unbalance loading when forging, protection forging equipment, extension equipment life.

The four corners of the upper end surface of the lower module are provided with right-angled grooves, and the corresponding positions of the lower end surface of the upper module are provided with lugs matched with the grooves.

Four bolt positioning holes are formed in the four corners of the upper die base and the lower die base.

When the die is assembled, the distance between the ejector block in the ejector block assembly hole and the corresponding close end surface of the upper die block or the lower die block is 0.4-0.5 times of the depth of the die cavity.

The diameter of the ejector rod is 0.1mm-0.3mm smaller than that of the ejector rod through hole.

The utility model relates to an automobile inner core forging forming die, the cooperation of module and die holder adopts the dovetail to assemble through the cooperation of a slide wedge of taking the inclination, become the vertical direction power that the friction press exerted into the incline direction power, make the die structure of design more convenient clamp; the positioning pin is matched with the upper hole of the friction press, so that the ejector rod and the ejector are ensured to play a role in matching, and the phenomenon that a die is damaged due to the fact that a blank is cooled in a die cavity in the forging process because the ejector rod cannot play a role is avoided; the diameter of the ejector rod is limited, so that the ejector rod can be guided better, friction between the ejector rod and a mold is reduced, and unnecessary work is reduced while ejection is guaranteed due to the arrangement of the ejection distance of the ejector block. The utility model discloses simple structure, convenient to use can produce the better automobile inner core of quality.

Drawings

Fig. 1 is a schematic external structural view of an automobile inner core forging and forming die of the present invention;

FIG. 2 is a cross-sectional view A-A' of FIG. 1;

FIG. 3 is a cross-sectional view taken along line B-B' of FIG. 1;

FIG. 4 is a schematic structural diagram of the upper module 4 of FIG. 1;

FIG. 5 is a schematic structural view of the lower module 2 of FIG. 1;

fig. 6 is an exploded view of the forging and forming mold for automobile inner core according to the present invention;

description of reference numerals:

1-a lower die holder; 111-top block assembly hole I; 112-top block assembly hole II; 12-positioning pin positioning hole I; 131-top block I; 132-top block II; 141-mandril I; 142-mandril II; 151-mandril through hole I; 152-mandril through hole II; 16-locating pin slot I; 17-wedge I; 18-positioning pin I; 2-lower module; 21-right angle grooves; 3-an upper die holder; 311-top block assembly hole III; 312-top block assembly hole IV; 32-positioning pin positioning hole II; 331-top piece III; 332-top piece IV; 341-mandril III; 342-a mandril IV; 351-mandril through hole III; 352-mandril through hole IV; 36-locating pin slot II; 37-wedge II; 38-locating pin II; 4-upper module; 41-bump.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The utility model discloses a detailed description is made below with the accompanying drawings, in the embodiment of the utility model, an automobile inner core forging forming die, including die holder 1, lower module 2, upper die holder 3, upper die block 4, be provided with the dovetail on the die holder 1, be provided with kicking block pilot hole I111, kicking block pilot hole II112, locating pin locating hole I12 in the dovetail, kicking block I131 sets up in kicking block pilot hole I111, kicking block II132 sets up in kicking block pilot hole II112, and all with the clearance fit between the die holder 1, fixedly provided with ejector pin I141 on the kicking block I131, fixedly provided with ejector pin II142 on the kicking block II132, each kicking block is movable distance in the kicking block pilot hole is 0.4-0.5 times of the die bore depth; the upper end surface of the lower module 2 is provided with two impressions, the center positions of the impressions are respectively provided with an ejector rod through hole matched with an ejector rod, the lower end surface of the lower module 2 is provided with a positioning pin groove I16, and the lower end of the lower module 2 is arranged in a dovetail groove of the lower die holder 1 and is matched and assembled through a wedge I17; the ejector rods extend into the corresponding ejector rod through holes, and the diameter of each ejector rod is 0.1mm-0.3mm smaller than that of each ejector rod through hole; one end of a positioning pin I18 is connected with the ejector device through a positioning pin positioning hole I12, and the other end falls into a positioning pin groove I16.

A dovetail groove is formed in the upper die holder 3, a top block assembling hole III311, a top block assembling hole IV312 and a positioning pin positioning hole II32 are formed in the dovetail groove, the top block III331 is arranged in the top block assembling hole III311, the top block IV332 is arranged in the top block assembling hole IV312 and is in clearance fit with the upper die holder 3, a top rod III341 is fixedly arranged on the top block III331, a top rod IV342 is fixedly arranged on the top block IV332, and the movable distance of each top block in the top block assembling hole is 0.4-0.5 times of the depth of the die cavity I; the upper end face of the upper module 4 is provided with two cavities I matched with the cavities on the upper end face of the lower module 2, the center of each cavity I is provided with an ejector rod through hole matched with an ejector rod, the lower end face of the upper module 4 is provided with a positioning pin groove II36, and the lower end of the upper module 4 is arranged in a dovetail groove of the upper die holder 3 and is matched and assembled through a wedge II 37; the ejector rods extend into the corresponding ejector rod through holes, and the diameter of each ejector rod is 0.1mm-0.3mm smaller than that of each ejector rod through hole; one end of a positioning pin II38 is connected with the ejector device through a positioning pin positioning hole II32, and the other end falls into a positioning pin groove II 36. The bolt positioning hole arranged on the die holder is used for fixing the die holder to the friction press.

The four corners of the upper end surface of the lower module 2 are provided with right-angled grooves 21, and the upper end surface of the upper module 4 is provided with convex blocks 41 matched with the grooves. After the upper module 4 and the lower module 2 are tightly attached, a feed inlet is arranged at the attaching position, two die cavities used for forging the automobile inner core are formed between two die cavities on the upper end surface of the lower module 2 and a die cavity I on the upper end surface of the upper module 4, the feed inlet is communicated with the die cavities, and the two die cavities are symmetrically distributed about the central line of the forging forming die.

The utility model discloses after the assembly is accomplished, through locating pin I18, when the cooperation in locating pin II38 and friction press upper hole was used, arrange forged blank in module 2 and last module 4 two that form be used for forging automobile inner core's die cavity down, after the pressurized shaping, ejector device through on the friction press promotes kicking block I131, kicking block II132, kicking block III331, kicking block IV332, and drive ejector pin I141 with each kicking block fixed connection, ejector pin II142, ejector pin III341, ejector pin IV342 cooperation plays a role, in time ejecting the module, prevent the blank at the die cavity internal cooling, lead to destroying of mould.

The present invention has been described above with reference to the accompanying drawings, but the technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides an automobile inner core forges forming die which characterized in that: the die comprises a lower die holder (1), a lower die block (2), an upper die holder (3) and an upper die block (4), wherein the lower die block (2) is correspondingly arranged on the lower die holder (1), the upper die block (4) is arranged on the upper die holder (3), and the upper die block (4) and the corresponding upper die holder (3) as well as the lower die block (2) and the lower die holder (1) are assembled in a matched manner through inclined wedges; when the automobile inner core is forged and formed, the lower die block (2) and the upper die block (4) are closed, two die cavities for forging the automobile inner core are formed between the lower die block and the upper die block, and the two die cavities are symmetrically distributed along the center line of the forging and forming die.

2. The automotive inner core forging and forming die as claimed in claim 1, wherein: a dovetail groove is formed in the lower die base (1), a top block assembly hole I (111), a top block assembly hole II (112) and a positioning pin positioning hole I (12) are formed in the dovetail groove, a top block I (131) is arranged in the top block assembly hole I (111) and is in clearance fit with the lower die base (1), and a top rod I (141) is fixedly arranged on the top block I (131); the ejector block II (132) is arranged in the ejector block assembly hole II (112) and is in clearance fit with the lower die holder (1), and an ejector rod II (142) is fixedly arranged on the ejector block II (132); the upper end face of the lower module (2) is provided with two impressions, the center positions of the impressions are respectively provided with an ejector rod through hole I (151) and an ejector rod through hole II (152), the lower end face of the lower module (2) is provided with a positioning pin slot I (16), the lower end of the lower module (2) is arranged in a dovetail groove of the lower die holder (1), a gap is formed between one side of the lower module (2) and the inner wall of the opposite side of the dovetail groove, and the lower module is inserted into the gap through a wedge I (17) to be matched and assembled; the ejector rod I (141) extends into the ejector rod through hole I (151), and the ejector rod II (142) extends into the ejector rod through hole II (152); the positioning pin I (18) is arranged in the positioning pin positioning hole I (12), the positioning pin I (18) comprises a cylindrical end and a base, the cylindrical end of the positioning pin I (18) is located in the positioning pin positioning hole I (12) or extends out of the lower die holder (1) through the positioning pin positioning hole I (12) to be abutted against the ejector device, and the base of the positioning pin I (18) extends into the positioning pin groove I (16).

3. The automotive inner core forging and forming die as claimed in claim 1, wherein: a dovetail groove is formed in the upper die holder (3), a top block assembling hole III (311), a top block assembling hole IV (312) and a positioning pin positioning hole II (32) are formed in the dovetail groove, a top block III (331) is arranged in the top block assembling hole III (311) and is in clearance fit with the upper die holder (3), and a top rod III (341) is fixedly arranged on the top block III (331); the ejector block IV (332) is arranged in the ejector block assembling hole IV (312) and is in clearance fit with the upper die holder (3), and an ejector rod IV (342) is fixedly arranged on the ejector block IV (332); the lower end face of the upper module (4) is provided with two die bores I matched with the die bores on the upper end face of the lower module (2), the center positions of the die bores I are respectively provided with an ejector rod through hole III (351) and an ejector rod through hole IV (352), the upper end face of the upper module (4) is provided with a positioning pin groove II (36), the lower end of the upper module (4) is arranged in a dovetail groove of the upper die holder (3), a gap is formed between one side of the upper module (4) and the inner wall of the side opposite to the dovetail groove, and the upper module is inserted into the gap through an inclined wedge II (37) for matching assembly; the ejector rod III (341) extends into the ejector rod through hole III (351), and the ejector rod IV (342) extends into the ejector rod through hole IV (352); and a positioning pin II (38) is arranged in the positioning pin positioning hole II (32), the positioning pin II (38) comprises a cylindrical end and a base, the cylindrical end of the positioning pin II (38) extends out of the upper die base (3) through being positioned in the positioning pin positioning hole II (32) or through the positioning pin positioning hole II (32) to be abutted against the ejector device, and the base of the positioning pin II (38) extends into the positioning pin groove II (36).

4. The automotive core forging forming die as claimed in claim 2 or 3, wherein: right-angled grooves (21) are formed in four corners of the upper end face of the lower module (2), and bumps (41) matched with the grooves are arranged at corresponding positions of the lower end face of the upper module (4); when the die is closed, the convex block (41) is in adaptive contact with the right-angle groove (21), so that the forged part is prevented from being dislocated.

5. The automotive inner core forging and forming die as claimed in claim 1, wherein: four corner parts of the upper die base (3) and the lower die base (1) are provided with four bolt positioning holes, and the die is fixed on the forging equipment through the bolt positioning holes.

6. The automotive core forging forming die as claimed in claim 2 or 3, wherein: when the die is assembled, the distance between the ejector block in the ejector block assembly hole and the close end face of the corresponding upper die block or lower die block is 0.4-0.5 times of the depth of the die cavity.

7. The automotive core forging forming die as claimed in claim 2 or 3, wherein: the diameter of the ejector rod is 0.1mm-0.3mm smaller than that of the ejector rod through hole.