CN220698207U - Knuckle production mould - Google Patents

Abstract

The utility model belongs to the technical field of die casting dies, and particularly relates to a knuckle production die which comprises a first die body, a second die body, a third die body, a fourth die body and a core die, wherein a lower cavity is formed by encircling the third die body, the fourth die body and the first die body, an upper cavity is formed by encircling the third die body, the fourth die body and the second die body, a main cavity communicated with the lower cavity and the upper cavity is formed by encircling the first die body, the second die body, the third die body and the fourth die body, the core die is inserted into the main cavity through the first die body and the second die body and is abutted with the third die body and the fourth die body, and the knuckle is molded in one step through the die casting process, so that the knuckle production die has the advantages of rapid molding, has the advantages of stable die structure, does not form a rough outer surface formed by a sand die, has higher molding precision, and has higher production efficiency, low production cost, does not generate a large amount of scraps in addition, has high material utilization rate, and is favorable for market popularization and use.

Description

Knuckle production mould

Technical Field

The utility model belongs to the technical field of die casting dies, and particularly relates to a knuckle production die.

Background

Steering knuckles are also known as steering forks or knuckle forks, which find widespread use in construction machines. The industrial production mode of the steering knuckle mainly comprises two modes, namely cutting by a cutter, the mode has longer processing time, can generate a large amount of cutting scraps, has low material utilization rate, and has larger consumption on the cutter and higher production cost. The other processing mode is sand mould pouring processing, the cost of the mode is lower, but the finished product precision is poor, complicated processing is needed to be carried out on the rough material to meet the use precision, and the production is also uneconomical.

Disclosure of Invention

In order to overcome the problems in the related art, the present disclosure provides a knuckle production mold.

In order to achieve the above purpose, the utility model adopts a technical scheme that:

the utility model provides a knuckle production mould, includes first die body, second die body, third die body, fourth die body and mandrel, the third die body fourth die body with first die body encloses to close and is formed with the cavity down, the third die body fourth die body with the second die body encloses to close and is formed with the cavity, first die body second die body third die body fourth die body encloses to close and is formed with the intercommunication cavity down with the main cavity of cavity, the mandrel passes through first die body with the second die body inserts the main cavity and with third die body with fourth die body butt, third die body with fourth die body encloses to close and is formed with the intercommunication the cavity down with the cavity of shaft cavity of cavity, the third die body or fourth die body is formed with the feed inlet with the communicating cavity of shaft.

Further, the mandrel comprises a shaft die inserted between the first die body and the second die body and a boss die detachably connected with the shaft die and abutted to the third die body and the fourth die body, and the longitudinal section of the boss die is larger than that of the shaft die.

Furthermore, an insert block is arranged at one end, close to the shaft die, of the boss die, and an insert block groove for the insert block to be inserted is formed at one end, close to the boss die, of the shaft die.

Furthermore, the abutting ends of the third die body and the fourth die body are respectively provided with a containing half groove communicated with the lower cavity, the upper cavity and the main cavity, and the two containing half grooves can be spliced to form a containing groove;

the boss die further comprises a round bench die and a limiting die connected with the boss die, the insert block is arranged at one axial end of the round bench die, and the limiting die is arranged at one end, far away from the insert block, of the round bench die;

when the boss die is abutted with the third die body and the fourth die body, the limiting die is inserted into the accommodating groove, one end, away from the inserting block, of the limiting die is abutted on the bottom wall of the accommodating groove in the state, and the left side wall and the right side wall of the limiting die are respectively attached to the left side wall and the right side wall of the accommodating groove.

Further, the boss mould is including the first boss split mould, second boss split mould and the third boss split mould of amalgamation in proper order, the second boss split mould with the first boss split mould with amalgamation face between the third boss split mould is the plane parallel with round platform mould axis, the first boss split mould includes first inserted block components of a whole that can function independently, first round platform mould components of a whole that can function independently and first spacing mould components of a whole that can function independently, the second boss split mould includes second inserted block components of a whole that can function independently, second round platform mould components of a whole that can function independently and second spacing mould components of a whole that can function independently, the third boss split mould includes third inserted block components of a whole that can function independently, third round platform mould components of a whole that can function independently with third inserted block components of a whole that can function independently forms the inserted block, first round platform mould components of a whole that can function independently with third round platform mould components of a whole that can function independently forms the inserted block, first round platform mould components of a whole that can function independently, second round platform mould components of a whole that can function independently with the third round platform components of a whole that can function independently, first boss components of a whole that can function independently, the spacing mould components of a whole that can function independently with spacing mould, third round platform components of a whole that can function independently.

Further, a third chute for allowing the core mold to penetrate is formed in the front sides of the first die body and the second die body.

Further, the feed inlet is formed in the fourth die body.

Further, the first die body is vertically spliced with the second die body, the third die body is horizontally spliced with the fourth die body, and a first chute for inserting the third die body and a second chute for inserting the fourth die body are respectively arranged on the left side and the right side of the first die body and the left side and the right side of the second die body.

Further, a plurality of first positioning holes are formed in the mutually spliced surfaces of the first die body and the second die body.

Further, a plurality of second positioning holes are formed in the mutually spliced surfaces of the third die body and the fourth die body.

Compared with the traditional cutting and sand mould pouring processes, the die casting process is used for forming the steering knuckle at one time, so that the die casting process has the advantage of rapid forming, the die structure is stable, the rough outer surface formed by sand mould forming cannot be formed, the die has higher forming precision, compared with the die casting process, the die casting process is higher in production efficiency and low in production cost, a large amount of scraps cannot be generated in the forming process, the material utilization rate is high, and the die casting process is beneficial to market popularization and use.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:

FIG. 1 is a schematic view of a steering knuckle according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a knuckle according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of an embodiment of the present utility model;

FIG. 4 is a right side view of an embodiment of the present utility model;

FIG. 5 is a cross-sectional view taken along the direction A-A in FIG. 4;

FIG. 6 is a cross-sectional view taken in the direction B-B of FIG. 4;

FIG. 7 is an exploded view of one embodiment of the present utility model;

FIG. 8 is an enlarged schematic view of the structure at C in FIG. 7;

FIG. 9 is a schematic view illustrating a structure of a second mold body hidden according to an embodiment of the present utility model;

FIG. 10 is a schematic diagram showing the combination of a first mold body and a second mold body according to an embodiment of the present utility model;

FIG. 11 is a second schematic view showing the combination of a first mold body and a second mold body according to an embodiment of the present utility model;

FIG. 12 is a schematic view of a first mold body according to an embodiment of the present utility model;

FIG. 13 is a schematic view showing the combination of a third mold body and a fourth mold body according to an embodiment of the present utility model;

fig. 14 is a schematic structural view of a shaft mold according to an embodiment of the utility model.

The meaning of the reference numerals in the drawings are:

the first die body 1, the lower cavity 11, the lower cavity half slot 111, the lower cavity half slot division slot 1111, the lower molding slot 112, the first chute 12, the first chute half slot 121, the first positioning hole 13, the third chute 14, the third chute half slot 141, the second die body 2, the upper cavity 21, the upper cavity half slot 211, the upper cavity half slot 2111, the upper molding slot 212, the second chute 22, the second chute half slot 221, the third die body 3, the second positioning hole 31, the fourth die body 4, the mandrel 5, the shaft die 51, the insert block slot 511, the boss die 52, the insert block 521, the round table die 522, the limiting die 523, the first boss die 524, the first insert block die segment 5291, the first round table die segment 5242, the first limiting die segment 5243, the second boss die 525, the second insert block segment 5291, the second round table die segment 5252, the second limiting die segment 5253, the third boss die 526, the third insert block segment 5291, the third insert block segment 62, the third insert die segment 611, the third round table segment 62, the boss die segment 5296, the boss die cavity half slot 5293, the shaft hole 93, the main cavity half slot receiving the shaft hole 93, the main cavity half slots, the main shaft cavity receiving the shaft cavity half slots, the shaft insert grooves, and the main cavities, and the main cavity half bodies.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

Referring to fig. 1-2, the knuckle 9 produced by the die casting die is the product, the knuckle 9 comprises a connecting main body 91, a shaft hole 92 penetrating through the connecting main body 91, two fork arms 93 which are connected to one side of the connecting main body 91 and are located at one end of the shaft hole 92 and distributed at intervals up and down, an assembly groove 94 which is coaxially arranged with the shaft hole 92 and has a diameter larger than that of the shaft hole 92 is further formed at one end of the connecting main body 91, which is close to the fork arms 93, and a fork shaft 95 is further connected between the two fork arms 93.

Referring to fig. 3 to 14, this embodiment shows a knuckle production mold, which includes a first mold body 1 and a second mold body 2 that are vertically split, a third mold body 3 and a fourth mold body 4 that are horizontally split, and a core mold 5 that is inserted into the first mold body 1 and the second mold body 2 and abuts against the third mold body 3 and the fourth mold body 4, and the third mold body 3 and the fourth mold body 4 are specifically split in the first mold body 1 and the second mold body 2, and the first mold body 1, the second mold body 2, the third mold body 3, the fourth mold body 4, and the core mold 5 are enclosed to form a mold cavity that forms a knuckle 9.

In order to accurately split the first mold body 1 and the second mold body 2, in this embodiment, a plurality of first positioning holes 13 are formed on the split surfaces of the first mold body 1 and the second mold body 2, which are opposite to each other, so that a positioning pin can be assembled in the first positioning holes 13 of the first mold body 1, and when the second mold body 2 is split with the first mold body 1, the first positioning holes 13 on the second mold body 2 are aligned with the positioning pins, so that the first mold body 1 and the second mold body 2 can be accurately split by matching the first positioning holes 13 with the positioning pins.

In order to accurately splice the third mold body 3 and the fourth mold body 4, in this embodiment, a plurality of second positioning holes 31 are formed on the splicing surface of the third mold body 3 and the fourth mold body 4, which are oppositely arranged, so that a positioning pin can be assembled in the fourth mold body 4 of the third mold body 3, and when the fourth mold body 4 is spliced with the third mold body 3, the second positioning holes 31 on the fourth mold body 4 are aligned with the positioning pins, so that the splicing can be realized, and the third mold body 3 and the fourth mold body 4 can be accurately spliced in the cooperation of the second positioning holes 31 and the positioning pins.

In order to make the third die body 3 and the fourth die body 4 spliced in the first die body 1 and the second die body 2, in this embodiment, the left side and the right side of the first die body 1 and the second die body 2 are respectively provided with a first chute 12 for inserting the third die body 3 and a second chute 22 for inserting the fourth die body 4, specifically, the first chute 12 is formed by splicing two first chute half grooves 121 arranged on the first die body 1 and the second die body 2, the second chute 22 is formed by splicing two second chute half grooves 221 arranged on the first die body 1 and the second die body 2, and when the four die bodies are spliced, the third die body 3 and the fourth die body 4 are respectively inserted into the first chute 12 and the second chute 22.

To support the core mold 5, in this embodiment, the front sides of the first mold body 1 and the second mold body 2 are provided with a third sliding groove 14, specifically, the third sliding groove 14 is formed by splicing two third sliding groove half grooves 141 respectively provided on opposite sides of the first mold body 1 and the second mold body 2, and when the core mold 5 is inserted into the first mold body 1 and the second mold body 2, a part of the core mold 5 will be located in the third sliding groove 14.

The mold cavity for molding the knuckle 9 is specifically described below:

the lower sides of the third die body 3 and the fourth die body 4 are respectively provided with a lower cavity half groove 1111, the two lower cavity half grooves 1111 are spliced into a lower cavity half groove 111, the upper side of the first die body 1 is provided with a lower forming groove 112, the lower forming groove 112 and the lower cavity half groove 111 are enclosed to form a lower cavity 11, and the lower cavity 11 is used for forming a fork arm 93 at the lower side.

The upper side of the third die body 3 and the upper side of the fourth die body 4 are respectively provided with an upper cavity half groove 2111, the two upper cavity half groove 2111 are spliced into an upper cavity half groove 211, the lower side of the second die body 2 is provided with an upper forming groove 212, the upper cavity half groove 211 and the upper forming groove 212 are enclosed to form an upper cavity 21, and the upper cavity 21 is used for forming the fork arm 93 at the upper side.

The main cavity dividing grooves 62 are formed on the opposite sides of the third die body 3 and the fourth die body 4, and the two main cavity dividing grooves 62 are enclosed with the lower forming groove 112 and the upper forming groove 212 to form a main cavity 6 communicated with the lower cavity 11 and the upper cavity 21, and the main cavity 6 is connected with the forming connecting body 91.

The third die body 3 and the fourth die body 4 are provided with shaft cavity half grooves 71 on one side of each other, and the shaft cavity 7 is formed by splicing the two shaft cavity half grooves 71, wherein the shaft cavity 7 is used for forming the fork shaft 95. It should be noted that in this embodiment, a feed port 8 for feeding is provided on the fourth die body 4 and is communicated with the axial cavity 7.

The core mold 5 is inserted into the main cavity 6 and abuts against the third mold body 3 and the fourth mold body 4, so that a shaft hole 92 can be formed in the connecting body 91, specifically, in this embodiment, the core mold 5 includes a shaft mold 51 inserted between the first mold body 1 and the second mold body 2, and a boss mold 52 detachably connected to the shaft mold 51 and abutting against the third mold body 3 and the fourth mold body 4, the longitudinal section of the boss mold 52 is larger than the longitudinal section of the shaft mold 51, wherein the shaft mold 51 is used for forming the shaft hole 92, and the boss mold 52 is used for forming the assembly groove 94.

It should be noted that, the shaft hole 92 of the knuckle 9 is used for assembling the shaft, a limiting member, such as a limiting nut, is required to be disposed at one end of the shaft, which is close to the yoke 93, to limit the shaft from separating from the shaft hole 92, and in order to hide the limiting member in the connecting body 91 and protect the limiting member, so that an assembling groove 94 with a diameter larger than that of the shaft hole 92 is also disposed on the connecting body 91, and the assembling groove 94 is not an essential feature of the knuckle 9, so that in some embodiments, the boss mold 52 is omitted, specifically, the core mold 5 is omitted from the mold, only the shaft mold 51 is retained, and in the corresponding process of mold closing, the assembling groove 94 is not formed on the connecting body 91, and only the shaft hole 92 is formed.

The detachable connection between the shaft die 51 and the boss die 52 can play a supporting role when the boss die 52 is clamped, and meanwhile, the shaft die 51 and the boss die 52 can be separated from each other during demolding so as to facilitate demolding of the shaft die 52, an exemplary description is made below of a detachable connection structure, specifically, an insert block 521 is arranged at one end of the boss die 52 close to the shaft die 51, an insert block groove 511 for inserting the insert block 521 is formed at one end of the shaft die 51 close to the boss die 52, after one end of the boss die 52 is abutted against the third die body 3 and the fourth die body 4, the shaft die 51 is abutted against the boss die 52, the insert block groove 511 is sleeved outside the insert block 521, so that the boss die 52 can be supported, and during demolding, the shaft die 52 can be separated through direct relative movement so as to facilitate demolding.

In this embodiment, in order to better limit the boss die 52, a design is further made in this embodiment, specifically, two receiving half grooves 611 that are communicated with the lower cavity 11, the upper cavity 21 and the main cavity 6 are formed at the abutting ends of the third die body 3 and the fourth die body 4, and the two receiving half grooves 611 can be spliced to form the receiving groove 61. The boss die 52 further comprises a round table die 522 and a limit die 523 connected with the boss die 52, the insert block 521 is arranged at an axial end of the round table die 522, and the limit die 523 is arranged at an end, far away from the insert block 521, of the round table die 522. When the boss die 52 abuts against the third die body 3 and the fourth die body 4, the limiting die 523 is inserted into the accommodating groove 61, in this state, one end of the limiting die 523, which is far away from the insert 521, abuts against the bottom wall of the accommodating groove 61, the left and right side walls of the limiting die 523 are respectively attached to the left and right side walls of the accommodating groove 61, and the boss die 52 can be better limited by the cooperation of the limiting die 523 and the accommodating groove 61, and in this state, the structure actually used for forming the assembly groove 94 is the round table die 522.

The diameter size of the assembly groove 94 can be set according to actual production needs, under some conditions, the diameter of the assembly groove 94 needs to be larger than the distance between the two fork arms 93, the setting is further made for facilitating demolding of the boss die 52 in this state, specifically, the boss die 52 comprises a first boss split die 524, a second boss split die 525 and a third boss split die 526 which are spliced in sequence, the splicing surfaces between the second boss split die 525 and the first boss split die 524 and the third boss split die 526 are planes parallel to the axis of the round table die 522, the first boss split die 524 comprises a first insert block split 5241, a first round table die split 5242 and a first limit die split 5243, the second boss split die 525 comprises a second insert block split 5251, a second round table die split 5252 and a second limit die split 5253, the third boss split die 526 comprises a third insert block split 5261, a third round table split 5262 and a third limit die split 5263, and the first boss split die 5241, the second insert block split die split 5262 and the third insert block split die split 5262 form a limit die split 5242, the first round table split die split 5243 and the third insert block split die split 5262. During demolding, the second boss split mold 525 can be pushed out to the side far away from the shaft mold 51, so that the first boss split mold 524 and the third boss split mold 526 can be replaced, and can be smoothly separated, so that the boss mold 52 can be demolded.

It should be noted that the second circular truncated cone mold split 5252 may be made of a material having a specific heat greater than that of the first circular truncated cone mold split 5242 and the third circular truncated cone mold split 5262, so that the whole body can be cooled rapidly, and in addition, the material adopted by the second circular truncated cone mold split 5252 is more easily contracted than that of the first circular truncated cone mold split 5242 and the third circular truncated cone mold split 5262, so that in contraction, the yield can be increased, and the demolding of the boss mold 52 is easy.

Before the die casting production, the die casting mold of this embodiment is assembled into a whole, specifically, the first die body 1 is used as a fixed die, and then the third die body 3 and the fourth die body 4 are inserted into the first chute half groove 121 and the second chute half groove 221 respectively to form the assembly. The first boss split die 524, the second boss split die 525 and the third boss split die 526 are spliced into a boss die 52, the shaft die 51 is sleeved outside the insertion block 521 through the insertion block groove 511 to splice into a core die 5, then the core die 5 is placed into the first die body 1, the shaft die 51 is positioned in the third chute half groove 141, the limiting die 523 of the boss die 52 is partially inserted into the accommodating groove 61, the inner side end of the limiting die 523 is required to be abutted with the bottom wall of the accommodating groove 61, and the second die body 2 is combined on the first die body 1 after the installation of the core die 5 is completed, so that the die assembly is completed.

During die casting production, molten metal is injected into a die cavity through a feed inlet 8, the molten metal firstly enters the shaft cavity 7, then is split into the lower cavity 11 and the upper cavity 21 through the shaft cavity 7, and is split into the main cavity 6 after entering the lower cavity 11 and the upper cavity 21 until the molten metal fills all the cavities. After the molten metal is cooled and molded in the mold, demolding is performed, during demolding, the second mold body 2 is separated upwards, the third mold body 3 and the fourth mold body 4 are separated to two sides respectively, the shaft mold 51 is pulled outwards, then the second boss split mold 525 is pushed away from the shaft hole 92, the second boss split mold 525 is withdrawn from the assembly groove 94, the first boss split mold 524 and the third boss split mold 526 are taken out from the assembly groove 94, and finally the knuckle 9 is taken out from the lower molding groove 112, so that demolding is completed.

Compared with the traditional cutting processing and sand mould pouring processing, the die casting processing is one-step molding of the steering knuckle, so that the die casting processing has the advantage of rapid molding, the die has stable structure, can not form a rough outer surface of sand mould molding, has higher molding precision, higher production efficiency compared with the die, low production cost, and can not generate a large amount of scraps in the molding process, and has high material utilization rate, thereby being beneficial to market popularization and use.

The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims of this utility model, which are within the skill of those skilled in the art, can be made without departing from the spirit and scope of the utility model disclosed herein.

Claims (10)

1. The utility model provides a knuckle production mould which characterized in that: the die comprises a first die body, a second die body, a third die body, a fourth die body and a core die, wherein a lower cavity is formed by encircling the third die body, the fourth die body and the first die body, an upper cavity is formed by encircling the third die body, the fourth die body and the second die body, a main cavity communicated with the lower cavity and the upper cavity is formed by encircling the first die body, the second die body, the third die body and the fourth die body, the core die is inserted into the main cavity through the first die body and the second die body and is abutted to the third die body and the fourth die body, an axial cavity communicated with the lower cavity and the upper cavity is formed by encircling the third die body and the fourth die body, and a feeding port communicated with the axial cavity is formed by encircling the third die body or the fourth die body.

2. A knuckle production die as defined in claim 1, wherein: the mandrel comprises a shaft die inserted between the first die body and the second die body and a boss die detachably connected with the shaft die and abutted against the third die body and the fourth die body, and the longitudinal section of the boss die is larger than that of the shaft die.

3. A knuckle production die as defined in claim 2, wherein: the boss mould is close to one end of the shaft mould is provided with an inserting block, and one end of the shaft mould, which is close to the boss mould, is provided with an inserting block groove for the inserting block to insert.

4. A knuckle production die according to claim 3, characterized in that: the abutting ends of the third die body and the fourth die body are respectively provided with a containing half groove communicated with the lower cavity, the upper cavity and the main cavity, and the two containing half grooves can be spliced to form a containing groove;

the boss die further comprises a round bench die and a limiting die connected with the boss die, the insert block is arranged at one axial end of the round bench die, and the limiting die is arranged at one end, far away from the insert block, of the round bench die;

when the boss die is abutted with the third die body and the fourth die body, the limiting die is inserted into the accommodating groove, one end, away from the inserting block, of the limiting die is abutted on the bottom wall of the accommodating groove in the state, and the left side wall and the right side wall of the limiting die are respectively attached to the left side wall and the right side wall of the accommodating groove.

5. A knuckle production die as defined in claim 4, wherein: the boss mould is including the first boss split mould, second boss split mould and the third boss split mould of amalgamation in proper order, the second boss split mould with the first boss split mould with amalgamation face between the third boss split mould is the plane parallel with the round platform mould axis, first boss split mould includes first inserted block split, first round platform mould split and first spacing mould split, the second boss split mould includes second inserted block split, second round platform mould split and the spacing mould split of second, the third boss split mould includes third inserted block split, third round platform mould split and the spacing mould split of third, first inserted block split the second inserted block split with the spacing mould split combination of third inserted block split forms the inserted block, first inserted block split the second round platform mould split with the spacing mould split combination of third round platform mould split forms the round platform mould, first spacing mould split the spacing mould split with the spacing mould split of third.

6. A knuckle production die in accordance with any one of claims 1-5, wherein: and a third sliding groove for the core mold to penetrate is formed in the front sides of the first die body and the second die body.

7. A knuckle production die as defined in claim 1, wherein: the feed inlet is formed in the fourth die body.

8. A knuckle production die as defined in claim 1, wherein: the first die body and the second die body are vertically spliced, the third die body and the fourth die body are horizontally spliced, and a first chute for the insertion of the third die body and a second chute for the insertion of the fourth die body are respectively arranged on the left side and the right side of the first die body and the left side and the right side of the second die body.

9. The knuckle production die of claim 8, wherein: and a plurality of first positioning holes which are oppositely arranged are formed in the splicing surfaces of the first die body and the second die body.

10. The knuckle production die of claim 8, wherein: and a plurality of second positioning holes which are oppositely arranged are formed in the splicing surfaces of the third die body and the fourth die body.