CN211888633U - Sub vehicle frame lower sheet die and material pressing core thereof - Google Patents
Sub vehicle frame lower sheet die and material pressing core thereof Download PDFInfo
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- CN211888633U CN211888633U CN202020125061.1U CN202020125061U CN211888633U CN 211888633 U CN211888633 U CN 211888633U CN 202020125061 U CN202020125061 U CN 202020125061U CN 211888633 U CN211888633 U CN 211888633U
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Abstract
The utility model discloses a sub vehicle frame lower plate mould and material pressing core thereof should press the material core to include that material pressing core body and detachably install inserting at the steel of pressing the material core body left and right sides, press the left and right sides of material core body to correspond the side blow hole device, set up the side blow head that supplies the side blow hole device on inserting and pass and punch a hole. This press material core has strengthened the structural strength who presses the material core body left and right sides through installing the steel insert, through offering on inserting with punching a hole, avoided will punching a hole directly offer weaken on pressing the material core body press the problem of material core body intensity and can guarantee wearing and tearing and impact mainly act on insert, but on the material core body is pressed to non-pressure, prolonged the life of pressing the material core body from this, reduced its change frequency. In addition, because the insert is detachably connected with the material pressing core body, when the insert is damaged, only the insert can be replaced without replacing the material pressing core body. This sub vehicle frame lower plate mould and pressure material core can reduce the manufacturing cost of sub vehicle frame lower plate.
Description
Technical Field
The utility model relates to a sub vehicle frame production technical field especially relates to a sub vehicle frame lower plate mould and pressure material core thereof.
Background
The back beam of the auxiliary frame is formed by welding an upper auxiliary frame sheet and a lower auxiliary frame sheet, and the lower auxiliary frame sheet is of a structure which is approximately shaped like a Chinese character 'ji' and consists of a horizontal part and two side parts.
The auxiliary frame lower piece die comprises a die main body and a side punching device, the die main body comprises a pressing core, the pressing core is utilized to compress the auxiliary frame lower piece in the production process, and two side portions of the auxiliary frame lower piece are punched by the side punching device.
The material pressing core of the existing auxiliary frame lower piece die is of an integrated structure formed by casting gray port cast iron, punching holes for allowing punches of a side punching device to penetrate are formed in the left side and the right side of the material pressing core, and the material pressing core of the structure can crack the left side and the right side when 5 ten thousand products are produced in batches, so that the material pressing core needs to be frequently replaced, and the production cost is high.
In view of this, how to improve the sub-frame lower sheet mold to reduce the frequency of replacing the swaging cores, thereby reducing the production cost of the sub-frame lower sheet, is a technical problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a material core is pressed to sub vehicle frame lower part mould, press the material core including pressing material core body, press the left and right sides of material core body to correspond the side blow hole device, still include detachably and install the steel of pressing the left and right sides of material core body inserts, set up the confession on inserting punch a hole that the side blow head of side blow hole device passed.
According to the material pressing core, the steel inserts are arranged on the left side and the right side of the material pressing core body, the structural strength of the left side and the right side of the material pressing core is enhanced, punching is arranged on the inserts, the problem that the punching is directly arranged on the material pressing core body and the strength of the material pressing core body is weakened is solved, the service life of the material pressing core body can be prolonged, the replacement frequency of the material pressing core body is reduced, and the production cost of a lower piece of an auxiliary frame is reduced.
Especially, set up the punching a hole on the insert, like this, impact and wearing and tearing mainly are on the insert rather than pressing the material core body to, because insert and pressing the material core body and be connected for dismantling, so when the insert is impaired, can only change the insert and not change and press the material core body, so not only can further reduce manufacturing cost, because change the insert compare whole more the operation of changing the material core more convenient to, so can also promote production efficiency.
Optionally, the pressing core further comprises a connecting bolt, the insert comprises a mounting seat, the mounting seat is provided with a connecting through hole, a threaded hole is formed in the position, corresponding to the connecting through hole, of the pressing core body, and the connecting bolt penetrates through the connecting through hole and is screwed in the corresponding threaded hole.
Optionally, the head of the connecting bolt is fully sunk into the connecting through hole.
Optionally, a sinking groove is formed in the top surface of the pressing core body, the bottom of the mounting seat sinks into the sinking groove, and the inner side surface of the bottom of the mounting seat is in fit contact with the side groove wall of the sinking groove.
Optionally, the thickness of the mounting seat is greater than the depth of the sink.
Optionally, the left and right sides of the swaging core body are respectively provided with a mounting hole for mounting a safety bolt, the front end and the rear end of the mounting seat extend to the front and the rear of the mounting hole on the corresponding side respectively, the front end and the rear end of the mounting seat are both provided with the connecting through holes, and the part between the front end and the rear end of the mounting seat is located on the outer side of the mounting hole on the corresponding side.
Optionally, the insert further includes a pressing portion, the pressing portion is disposed above an outer side of the mounting seat, and the punched hole is formed in the pressing portion.
Optionally, the outer side surface of the insert is coincident with a projection of the left side surface or the right side surface of the swage core body on the top surface of the swage core body.
Optionally, the insert is made of Cr12 with the hardness of HRC50-HRC 55.
The utility model also provides a sub vehicle frame lower plate mould, include side punching device and press the material core, press the material core to be above-mentioned arbitrary the material core of pressing.
Since the pressing core has the technical effects, the auxiliary frame lower sheet die comprising the pressing core also has the technical effects.
Drawings
FIG. 1 is a partial structural view of a lower sheet mold of an auxiliary frame provided by the present invention;
FIG. 2 is an enlarged view of a position of a sinking groove formed on the top surface of the swaging core body;
FIG. 3 is an enlarged view of the bottom sink of the mounting seat of the insert;
FIG. 4 is a sectional view of the mounting seat of the insert at a location where a connecting through hole is formed.
The reference numerals are explained below:
the stamping die comprises a pressing core body 1, a sink groove 11, a side groove wall 111, a threaded hole 1a, a mounting hole 1b, an insert 2, a mounting seat 21, a connecting through hole 21a, a pressing part 22, a punching hole 22a, a connecting bolt 3, a side punching device 4 and a punch 41.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following provides a detailed description of the technical solution of the present invention with reference to the accompanying drawings.
It should be noted that in the description of the present invention, the terms "left", "right", "front", "rear", and the like are used in the orientations shown in the drawings, and are intended to clearly express the positional relationship of the components, and do not indicate or imply that the system or the components to be referred to must have a specific orientation, be constructed in a specific orientation, and be operated. Furthermore, in the description of the present invention, along the left-right direction in the drawing, the position relatively close to the center of the pressing core body 1 is inner, and the position relatively far from the center of the pressing core body 1 is outer.
As shown in fig. 1, the sub-frame lower sheet die includes a blanking core and a side punching device 4. The material pressing core comprises a material pressing core body 1, and the left side and the right side of the material pressing core body 1 respectively correspond to the side punching devices 4. In the figure, the side punching device 4 corresponding to the left side of the material pressing core body 1 comprises two punches 41, one is a circular hole side punch, and the other is a special-shaped hole side punch; the side punching device 4 corresponding to the right side of the material pressing core body 1 also comprises two punches 41, one is a circular hole side punch 41, and the other is a special-shaped hole side punch.
The material pressing core further comprises an insert 2, the left side and the right side of the material pressing core body 1 are respectively provided with the insert 2, and the insert 2 is detachably connected with the material pressing core body 1. The insert 2 is made of steel, specifically, Cr12 with the hardness of HRC50-HRC55, and the insert 2 made of the steel has long service life and is not easy to crack.
The core press is provided with a punch hole 22a, and the punch hole 22a is penetrated by a punch 41 of the side punching device 4. As shown in fig. 3, a punched hole 22a is provided in the insert 2. In the figure, each insert 2 is provided with two punched holes 22a, one is a circular punched hole for a round hole side punch to pass through, and the other is a special-shaped punched hole for a special-shaped hole side punch to pass through.
The left and right sides of pressure material core body 1 can inwards cave in for adapting to the product molding and form the depressed area, leads to the left and right sides of pressure material core comparatively weak, structural strength is lower, take place to burst easily.
This application is through the left and right sides installation steel insert 2 of pressing material core body 1, has strengthened the structural strength who presses the material core body 1 left and right sides to offer on insert 2 punching a hole 22a, avoided will punching a hole 22a directly offer on pressing material core body 1 to the intensity weakening problem of pressing material core body 1, thereby can prolong the life of pressing material core body 1, reduce the change frequency of pressing material core body 1, reduce the manufacturing cost of sub vehicle frame lower part.
Especially, the punching hole 22a is arranged on the insert 2, so that impact and abrasion mainly act on the insert 2 instead of the material pressing core body 1, and because the insert 2 is detachably connected with the material pressing core body 1, when the insert 2 is damaged, only the insert 2 can be replaced without replacing the material pressing core body 1, so that the production cost can be further reduced, and the insert 2 can be replaced more conveniently than the whole material pressing core, so that the production efficiency can be improved.
Specifically, as shown in fig. 1 and 3, the insert 2 includes a mounting seat 21 and a swaging part 22, the punched hole 22a is formed in the swaging part 22, and the swaging part 22 is disposed above the outer side of the mounting seat 21 and forms an L-shaped structure together with the mounting seat 21, so that the structural strength of the insert 2 can be improved.
Specifically, the outer side surface (i.e., the left side surface) of the left insert 2 coincides with the projection of the left side surface of the swaging core body 1 on the top surface of the swaging core body 1, and the outer side surface (i.e., the right side surface) of the right insert 2 coincides with the projection of the right side surface of the swaging core body 1 on the top surface of the swaging core body 1. It will be appreciated that the outer side of the insert 2 comprises the outer side of the mounting seat 21 and the outer side of the swage 22.
When the auxiliary frame lower piece pressing device is used, the top surface of the pressing core body 1 presses the horizontal portion of the auxiliary frame lower piece, the outer side surface of the left insert 2 presses the left side portion of the auxiliary frame lower piece, and the outer side surface of the right insert 2 presses the right side portion of the auxiliary frame lower piece.
Specifically, the insert 2 and the material pressing core body 1 can be detachably connected through the connecting bolt 3, in detail, the mounting base 21 is provided with a connecting through hole 21a, the material pressing core body 1 is provided with a threaded hole 1a at a position corresponding to the connecting through hole 21a, the connecting bolt 3 penetrates through the connecting through hole 21a to be screwed with the corresponding threaded hole 1a, and the connecting structure is high in reliability and convenient to detach. Certainly, in practical implementation, the insert 2 and the material pressing core body 1 can be detachably connected in a clamping manner and the like.
More specifically, the head portion of the connecting bolt 3 is preferably completely sunk into the connecting through hole 21a to prevent the subframe lower piece from being deformed due to the pressing of the head portion of the connecting bolt 3 against the subframe lower piece. In detail, as shown in fig. 4, the upper end hole diameter of the connecting through hole 21a may be made larger than the lower end hole diameter so as to form an upward stepped surface at the inner periphery of the connecting through hole 21a, and the depth of the portion of the connecting through hole 21a located above the stepped surface may be made larger than or equal to the thickness of the head of the connecting bolt 3, so that the head of the connecting bolt 3 may be completely sunk into the connecting through hole 21a and supported by the stepped surface.
Specifically, as shown in fig. 1, the left and right sides of the swaging core body 1 are respectively provided with a mounting hole 1b for mounting a safety bolt. The front end and the rear end of the mounting seat 21 extend to the front and the rear of the mounting hole 1b on the corresponding side respectively, the front end and the rear end of the mounting seat 21 are provided with a plurality of connecting through holes 21a respectively, each connecting through hole 21a is internally provided with a connecting bolt 3 (only one connecting bolt 3 is shown in the figure), and the part between the front end and the rear end of the mounting seat 21 is positioned on the outer side of the mounting hole 1b on the corresponding side. The arrangement of the mounting seat 21 is more beneficial to the improvement of the strength of the left side and the right side of the material pressing core body 1 by the insert 2.
Further, as shown in fig. 2 and 3, a sinking groove 11 is provided on the top surface of the swage core body 1, the bottom of the mounting seat 21 sinks into the sinking groove 11, the inner side surface of the bottom of the mounting seat 21 is in fitting contact with the side groove wall 111 of the sinking groove 11, that is, the shape of the inner side surface of the bottom of the mounting seat 21 is identical to the shape of the side groove wall 111 of the sinking groove 11, and in the mounted state, the two are in contact with each other. With the arrangement, the side groove wall 111 of the sunken groove 11 can apply outward supporting force to the insert 2, so that the insert 2 can better bear the impact force of the side punch 41 transmitted by the lower piece of the subframe, and the impact strength of the insert 2 is improved.
Specifically, the thickness of the mounting seat 21 is preferably greater than the depth of the sinking groove 11, and in detail, the depth of the sinking groove 11 may be 20mm, and the thickness of the mounting seat 21 may be 40 mm. Therefore, the strength of the swaging core body 1 cannot be affected due to the excessive depth of the sinking groove 11, and the mounting seat 21 has enough thickness to form the connecting through hole 21a, so that the connection reliability can be ensured.
It is right above the utility model provides an auxiliary frame lower piece mould and press the material core to carry out the detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (10)
1. The utility model provides a press material core of sub vehicle frame lower part mould, its characterized in that, press the material core including press material core body (1), press the left and right sides of material core body (1) to correspond side punching device (4), still include detachably and install press the steel of material core body (1) left and right sides and insert (2), set up the confession on inserting (2) the side drift (41) of side punching device (4) pass punch a hole (22 a).
2. The swaging core according to claim 1, further comprising a connecting bolt (3), wherein the insert (2) comprises a mounting seat (21), the mounting seat (21) is provided with a connecting through hole (21a), a threaded hole (1a) is formed in a position of the swaging core body (1) corresponding to the connecting through hole (21a), and the connecting bolt (3) passes through the connecting through hole (21a) and is screwed into the corresponding threaded hole (1 a).
3. The swage core according to claim 2, characterized in that the head of the connection bolt (3) is fully sunk into the connection through hole (21 a).
4. The swaging core of claim 2, wherein a sinking groove (11) is formed in the top surface of the swaging core body (1), the bottom of the mounting seat (21) is sunk into the sinking groove (11), and the inner side surface of the bottom of the mounting seat (21) is in fit contact with the side groove wall (111) of the sinking groove (11).
5. The blanking core according to claim 4, wherein the thickness of the mounting seat (21) is greater than the depth of the sink (11).
6. The swaging core according to claim 2, wherein the left side and the right side of the swaging core body (1) are respectively provided with a mounting hole (1b) for mounting a safety bolt, the front end and the rear end of the mounting seat (21) respectively extend to the front and the rear of the mounting hole (1b) on the corresponding side, the front end and the rear end of the mounting seat (21) are respectively provided with the connecting through hole (21a), and the part between the front end and the rear end of the mounting seat (21) is located on the outer side of the mounting hole (1b) on the corresponding side.
7. The swage core according to claim 2, characterized in that the insert (2) further comprises a swage portion (22), the swage portion (22) being disposed over an outer side of the mount (21), the punch hole (22a) opening in the swage portion (22).
8. The swage core according to any one of claims 1 to 7, characterized in that the outer side face of the insert (2) coincides with the projection of the left or right side face of the swage core body (1) on the top face of the swage core body (1).
9. The swage core according to any one of claims 1 to 7, characterized in that the material of said insert (2) is Cr12 with a hardness of HRC50-HRC 55.
10. A subframe lower die comprising a side punching device (4) and a pressing core, characterized in that the pressing core is as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020125061.1U CN211888633U (en) | 2020-01-19 | 2020-01-19 | Sub vehicle frame lower sheet die and material pressing core thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020125061.1U CN211888633U (en) | 2020-01-19 | 2020-01-19 | Sub vehicle frame lower sheet die and material pressing core thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211888633U true CN211888633U (en) | 2020-11-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020125061.1U Active CN211888633U (en) | 2020-01-19 | 2020-01-19 | Sub vehicle frame lower sheet die and material pressing core thereof |
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| Country | Link |
|---|---|
| CN (1) | CN211888633U (en) |
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2020
- 2020-01-19 CN CN202020125061.1U patent/CN211888633U/en active Active
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