阅读说明：本技术 基于fsae赛车的钢制单体壳模具成型工艺以及成型模具 (Fsae racing car-based steel monomer shell die forming process and forming die ) 是由 郝志晟 冯韵挥 庄伟超 于 2020-07-07 设计创作，主要内容包括：本发明涉及一种基于fsae赛车的钢制单体壳模具成型工艺以及成型模具,成型模具的前板的两侧分别连接左侧板的一侧、右侧板的一侧,左侧板的另一侧与右侧板的另一侧汇合连接,前板、左侧板以及右侧板形成圆周封闭结构,在形成的圆周封闭结构的底部覆设左底板和右底板,左底板和右底板将圆周封闭结构的底部全部遮住,且左底板与左侧板相邻,右底板与右侧板相邻；在形成的圆周封闭结构的顶部覆设前上板和后上板,前上板与位于X轴负轴方向的左侧板、右侧板接触,并在合理的位置设置与前上板垂直的加强筋,后上板与位于X轴正轴方向的左侧板、右侧板接触；本发明解决了传统fsae赛车单体壳模具制造的缺点以及对单体壳成型效果的负面影响。(The invention relates to a fsae racing car-based steel monomer shell mold molding process and a molding mold, wherein two sides of a front plate of the molding mold are respectively connected with one side of a left side plate and one side of a right side plate, the other side of the left side plate is connected with the other side of the right side plate in a converging manner, the front plate, the left side plate and the right side plate form a circumferential closed structure, a left bottom plate and a right bottom plate are covered at the bottom of the formed circumferential closed structure, the left bottom plate and the right bottom plate completely cover the bottom of the circumferential closed structure, the left bottom plate is adjacent to the left side plate, and the right bottom plate is adjacent to the right side plate; the top of the formed circumferential closed structure is covered with a front upper plate and a rear upper plate, the front upper plate is in contact with a left side plate and a right side plate which are positioned in the X-axis negative axis direction, reinforcing ribs which are vertical to the front upper plate are arranged at reasonable positions, and the rear upper plate is in contact with the left side plate and the right side plate which are positioned in the X-axis positive axis direction; the invention solves the defects of the traditional fsae racing car monomer shell mould manufacturing and the negative influence on the monomer shell forming effect.)

1. The steel monomer shell mold forming process based on the fsae racing car is characterized in that: the method specifically comprises the following steps:

the first step is as follows: the cutting part is used for manufacturing each part for manufacturing the monomer shell die by cutting a steel plate and a metal plate through laser;

the second step is that: assuming a formed single shell, establishing an XYZ rectangular coordinate system by taking the center of the bottom surface of the single shell as the center of a coordinate system, wherein the top end of the formed single shell is positioned on a Z-axis positive axis, the bottom end of the formed single shell extends to the X-axis positive axis from an X-axis negative axis, one side of the formed single shell is positioned on a Y-axis positive axis, and the other side of the formed single shell is positioned on a Y-axis negative axis;

installing a front plate at the front end of the molded monomer shell, wherein the front plate is vertically arranged with an X-axis negative axis;

installing a left side plate on one side of the formed monomer shell, installing a right side plate on the other side of the formed monomer shell, wherein the left side plate and the right side plate are both vertically arranged with the Y axis, and both the left side plate and the right side plate extend from the X axis negative axis to the X axis positive axis;

a left bottom plate is arranged on one side of the bottom of the formed monomer shell in the Y-axis positive axis direction, a right bottom plate is arranged on one side of the bottom of the formed monomer shell in the Y-axis negative axis direction, the left bottom plate and the right bottom plate are both arranged perpendicular to the Z axis, and the left bottom plate and the right bottom plate both extend to the X-axis positive axis from the X-axis negative axis;

the left side plate, the right side plate, the left bottom plate, the right bottom plate and the front plate form a circumferential closed structure, and the joint of each part and the front plate is fixedly connected through a bolt;

the third step: the opening end of the circumferential closed structure is covered with a front upper plate and a rear upper plate, wherein the front upper plate is positioned in the negative axis direction of the X axis, and the rear upper plate is positioned in the positive axis direction of the X axis;

the fourth step: a plurality of reinforcing ribs are welded on the front upper plate and are vertical to the bottom surface of the formed monomer shell;

the fifth step: the joint position of the right side plate and the right bottom plate is fixedly connected through welding, and the joint position of the left side plate and the left bottom plate is also fixedly connected through welding;

and a sixth step: the left bottom plate and the right bottom plate are mutually matched through concave-convex edges and are preliminarily positioned through a bolt fixing positioning plate, and then a plurality of split die lug combinations are uniformly welded along seams to be fixedly connected;

the seventh step: one end of the left side plate is connected with one side of the front plate through a bolt, one end of the right side plate is connected with the other side of the front plate through a bolt, the other end of the left side plate and the other end of the right side plate are converged in the positive axis direction of an X axis, the converged part is preliminarily positioned through mutual matching of concave and convex edges and bolt fixing and positioning plates, and then a plurality of split die lug combinations are uniformly welded along seams to be fixedly connected;

eighth step: the joints of the front upper plate and the left side plate and the right side plate are fixedly connected by uniformly welding a plurality of split die lug combinations along the seams respectively;

the ninth step: the joint of the rear upper plate and the left side plate and the joint of the rear upper plate and the right side plate are fixedly connected through uniformly welding a plurality of split die lug combinations along the seams respectively.

2. The fsae racing car-based steel monocoque mold forming process of claim 1, wherein: the thickness of the steel plate is 3mm, and the steel grade is 45 steel.

3. The fsae racing car-based steel monocoque mold forming process of claim 1, wherein: the left side plate and the right side plate have the same structure, are arranged vertically to the Y axis and are symmetrically arranged relative to the X axis, the left side plate or the right side plate comprises three parts, namely a first side plate, a second side plate and a third side plate, the first side plate and the second side plate are connected through a first transition plate, and the first side plate and the second side plate are arranged in a staggered manner; the second side plate is connected with the third side plate through a second transition plate, and the third side plate and the second side plate are arranged at an included angle of 90 degrees.

4. The fsae racing car-based steel monocoque mold forming process of claim 1, wherein: the left bottom plate and the right bottom plate are the same in structure, are arranged perpendicular to the Z axis and are arranged symmetrically relative to the X axis, the left bottom plate or the right bottom plate comprises two parts, namely a first bottom plate and a second bottom plate, the first bottom plate and the second bottom plate are connected through a third transition plate, and the first bottom plate and the second bottom plate are arranged in a staggered layer.

5. A forming die based on the fsae racing car-based steel monomer shell die forming process of any claim, wherein the forming die comprises: the floor comprises a front plate, a left side plate, a right side plate, a left bottom plate, a right bottom plate, a front upper plate and a rear upper plate, wherein the front plate, the left side plate and the right side plate are all arranged vertical to the ground, and the left bottom plate, the right bottom plate, the front upper plate and the rear upper plate are all arranged parallel to the ground;

the two sides of the front plate are respectively connected with one side of the left side plate and one side of the right side plate, the other side of the left side plate is connected with the other side of the right side plate in a converging manner, the front plate, the left side plate and the right side plate form a circumferential closed structure, a left bottom plate and a right bottom plate are covered at the bottom of the formed circumferential closed structure, the left bottom plate and the right bottom plate cover the whole bottom of the circumferential closed structure, the left bottom plate is adjacent to the left side plate, and the right bottom plate is adjacent to the right side plate;

the top of the formed circumferential closed structure is covered with a front upper plate and a rear upper plate, the front upper plate is in contact with a left side plate and a right side plate which are positioned in the X-axis negative axis direction, and the rear upper plate is in contact with the left side plate and the right side plate which are positioned in the X-axis positive axis direction.

6. The fsae racing car-based steel monocoque mold forming process forming mold as claimed in claim 5, wherein: the reinforcing rib is fixedly connected with the front upper plate in a welding mode and used for shaping and constraining the front upper plate.

7. The fsae racing car-based steel monocoque mold forming process forming mold as claimed in claim 6, wherein:

the right side plate and the right bottom plate, and the left side plate and the left bottom plate are fixedly connected through welding;

the joint of the front upper plate and the right side plate and the left side plate is fixedly connected by uniformly welding a plurality of die-splitting lug combinations, and the joint of the rear upper plate and the left side plate and the right side plate is fixedly connected by uniformly welding a plurality of die-splitting lug combinations along the seam;

the joint of the left side plate and the right side plate is preliminarily positioned by matching concave and convex edges and fixing a positioning plate by a bolt, and is fixedly connected by uniformly welding a plurality of die-splitting lug combinations along a seam;

the left bottom plate and the right bottom plate are preliminarily positioned at the joint through the concave-convex edge matching and the bolt fixing positioning plate, and are fixedly connected through uniformly welding a plurality of die parting lug combinations along the seam.

Technical Field

The invention relates to a fsae racing car-based steel monomer shell mold forming process and a forming mold, and belongs to the field of molds in the fsae racing car monomer shell forming process.

Background

The Fsae equation racing car is a game for college students in the world, and at present, a large number of motorcades adopt monocoques as car bodies to replace truss car bodies, so that the weight of the car bodies is reduced to a certain extent; in the field of professional racing cars (such as formula one racing cars), the shape and the structure of the monomer shell are very complex, the cost is extremely high, and the requirement on the monomer shell forming process is very high. The fsae single shell has the advantages of being simple in modeling and mild in forming conditions, and considering the identity of college students of motorcade members from the design expectation, the control cost, the workload reduction, the comfortable working conditions, the accuracy of single shell hole sites and the high quality and accuracy of each surface of the single shell in the manufacturing process of the single shell are expected.

The conventional fsae racing car monomer shell mold is mainly a mode of manually turning over a female mold after machining a male mold, in the mode, a milling machine is used for machining a foam or wood male mold, then resin and glass fiber or carbon fiber are mixed to turn over the female mold on the basis of the male mold, the mold turning process is time-consuming, resin needs to be repeatedly brushed, and the mold is repeatedly waited for curing and repeatedly polished; the method has the advantages that the carbon fiber is heated during the forming, the carbon fiber or the glass fiber is used as the mold of the carbon fiber monomer shell, the consistency of the expansion of the mold and the monomer shell during the thermal deformation can be ensured, and compared with a directly milled metal mold, the cost is lower; the defects of large workload, poor working environment, hole site error easily caused in the process of die turnover, difficult reference surface of the monomer shell caused by repeated grinding and difficult subsequent processing.

Disclosure of Invention

The invention provides a steel monomer shell mold forming process and a steel monomer shell mold based on fsae racing, which solve the defects of the traditional fsae racing monomer shell mold manufacturing and the negative influence on the monomer shell forming effect.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a steel monomer shell mold forming process based on fsae racing cars specifically comprises the following steps:

the first step is as follows: the cutting part is used for manufacturing each part for manufacturing the monomer shell die by cutting a steel plate and a metal plate through laser;

the second step is that: assuming a formed single shell, establishing an XYZ rectangular coordinate system by taking the center of the bottom surface of the single shell as the center of a coordinate system, wherein the top end of the formed single shell is positioned on a Z-axis positive axis, the bottom end of the formed single shell extends to the X-axis positive axis from an X-axis negative axis, one side of the formed single shell is positioned on a Y-axis positive axis, and the other side of the formed single shell is positioned on a Y-axis negative axis;

installing a front plate at the front end of the molded monomer shell, wherein the front plate is vertically arranged with an X-axis negative axis;

installing a left side plate on one side of the formed monomer shell, installing a right side plate on the other side of the formed monomer shell, wherein the left side plate and the right side plate are both vertically arranged with the Y axis, and both the left side plate and the right side plate extend from the X axis negative axis to the X axis positive axis;

a left bottom plate is arranged on one side of the bottom of the formed monomer shell in the Y-axis positive axis direction, a right bottom plate is arranged on one side of the bottom of the formed monomer shell in the Y-axis negative axis direction, the left bottom plate and the right bottom plate are both arranged perpendicular to the Z axis, and the left bottom plate and the right bottom plate both extend to the X-axis positive axis from the X-axis negative axis;

the left side plate, the right side plate, the left bottom plate, the right bottom plate and the front plate form a circumferential closed structure, and the joint of each part and the front plate is fixedly connected through a bolt;

the third step: the opening end of the circumferential closed structure is covered with a front upper plate and a rear upper plate, wherein the front upper plate is positioned in the negative axis direction of the X axis, and the rear upper plate is positioned in the positive axis direction of the X axis;

the fourth step: a plurality of reinforcing ribs are welded on the front upper plate and are vertical to the bottom surface of the formed monomer shell;

the fifth step: the joint position of the right side plate and the right bottom plate is fixedly connected through welding, and the joint position of the left side plate and the left bottom plate is also fixedly connected through welding;

and a sixth step: the left bottom plate and the right bottom plate are mutually matched through concave-convex edges and are preliminarily positioned through a bolt fixing positioning plate, and then a plurality of split die lug combinations are uniformly welded along seams to be fixedly connected;

the seventh step: one end of the left side plate is connected with one side of the front plate through a bolt, one end of the right side plate is connected with the other side of the front plate through a bolt, the other end of the left side plate and the other end of the right side plate are converged in the positive axis direction of an X axis, the converged part is preliminarily positioned through mutual matching of concave and convex edges and bolt fixing and positioning plates, and then a plurality of split die lug combinations are uniformly welded along seams to be fixedly connected;

eighth step: the joint of the front upper plate, the left side plate and the right side plate is fixedly connected with a plurality of split die lug combinations by uniformly welding along seams.

The ninth step: the joints of the rear upper plate and the left side plate and the right side plate are fixedly connected by uniformly welding a plurality of split die lug combinations along the seams respectively;

in a further preferred embodiment of the present invention, the steel sheet has a thickness of 3mm and a steel grade of 45 steel;

as a further preferable mode of the present invention, the left side plate and the right side plate have the same structure, and are arranged perpendicular to the Y axis and symmetrically arranged with respect to the X axis, the left side plate or the right side plate includes three parts, which are a first side plate, a second side plate and a third side plate, the first side plate and the second side plate are connected by a first transition plate, and the first side plate and the second side plate are arranged in a staggered manner; the second side plate is connected with the third side plate through a second transition plate, and the third side plate and the second side plate form an included angle of 90 degrees;

as a further preferred embodiment of the present invention, the left bottom plate and the right bottom plate have the same structure, are arranged perpendicular to the Z axis and are symmetrically arranged with respect to the X axis, and both the left bottom plate and the right bottom plate include two parts, namely a first bottom plate and a second bottom plate, the first bottom plate and the second bottom plate are connected by a third transition plate, and the first bottom plate and the second bottom plate are arranged in a staggered manner;

a forming die based on the fsae racing car-based steel monomer shell die forming process comprises a front plate, a left side plate, a right side plate, a left bottom plate, a right bottom plate, a front upper plate and a rear upper plate, wherein the front plate, the left side plate and the right side plate are all arranged perpendicular to the ground, and the left bottom plate, the right bottom plate, the front upper plate and the rear upper plate are all arranged in parallel with the ground;

the two sides of the front plate are respectively connected with one side of the left side plate and one side of the right side plate, the other side of the left side plate is connected with the other side of the right side plate in a converging manner, the front plate, the left side plate and the right side plate form a circumferential closed structure, a left bottom plate and a right bottom plate are covered at the bottom of the formed circumferential closed structure, the left bottom plate and the right bottom plate cover the whole bottom of the circumferential closed structure, the left bottom plate is adjacent to the left side plate, and the right bottom plate is adjacent to the right side plate;

the top of the formed circumferential closed structure is covered with a front upper plate and a rear upper plate, the front upper plate is contacted with a left side plate and a right side plate which are positioned in the X-axis negative axis direction, and the rear upper plate is contacted with the left side plate and the right side plate which are positioned in the X-axis positive axis direction;

as a further preferred aspect of the invention, the device further comprises a reinforcing rib which is fixedly connected with the front upper plate in a welding manner and used for shaping and constraining the front upper plate;

as a further preferred aspect of the present invention,

the right side plate and the right bottom plate, and the left side plate and the left bottom plate are fixedly connected through welding;

the joint of the front upper plate and the right side plate and the left side plate is fixedly connected by uniformly welding a plurality of die-splitting lug combinations, and the joint of the rear upper plate and the left side plate and the right side plate is fixedly connected by uniformly welding a plurality of die-splitting lug combinations along the seam;

the joint of the left side plate and the right side plate is preliminarily positioned by matching concave and convex edges and fixing a positioning plate by a bolt, and is fixedly connected by uniformly welding a plurality of die-splitting lug combinations along a seam;

the left bottom plate and the right bottom plate are preliminarily positioned at the joint through the concave-convex edge matching and the bolt fixing positioning plate, and are fixedly connected through uniformly welding a plurality of die parting lug combinations along the seam.

Through the technical scheme, compared with the prior art, the invention has the following beneficial effects:

1. the die manufactured by the invention can be completed only by the steel plate metal plate, so that the cost is greatly reduced;

2. parts related to the die are all processed by laser cutting, hole positions generated by fixing and positioning plates through the bolts are all formed by laser, and the hole position precision is high;

3. according to the invention, the steel plate with higher flatness is used as the steel sheet metal die forming material, so that the polishing process is avoided, the monomer shell manufactured by the forming die has a high-precision reference surface, and the positioning work of the subsequent racing car manufacturing is facilitated;

4. the sheet metal parts are provided with the bolts, the positioning holes and the concave-convex blocks, and can be mutually positioned and fixed during welding or die assembly, so that the precision between all the surfaces is higher;

5. the laser cutting and the sheet metal working can be finished by a machine, and only a small amount of manual operation is needed in the welding work and the die assembly work, so that the use of viscous liquid such as resin is avoided, and the generation of harmful gas or dust is avoided.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic overall structure of a preferred embodiment of the present invention;

FIG. 2 is a schematic illustration of the present invention, broken away, for a preferred embodiment;

fig. 3 is a bottom left view sub-assembly schematic of the preferred embodiment of the present invention.

In the figure: 1 is the front bezel, 2 is the strengthening rib, 3 is the preceding upper plate, 4 is the right side board, 5 is the right bottom plate, 6 is the back upper plate, 7 is the monomer shell that has formed, 8 is the left side board, 9 is the left bottom plate, 10 is the combination of mould division auricle, 11 is bolt fixed position board.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

The conventional fsae racing car monomer shell mold is mainly a mode of manually turning over a female mold after machining a male mold, in the mode, a milling machine is used for machining a foam or wood male mold, then resin and glass fiber or carbon fiber are mixed to turn over the female mold on the basis of the male mold, the mold turning process is time-consuming, resin needs to be repeatedly brushed, and the mold is repeatedly waited for curing and repeatedly polished; the method has the advantages of large workload, poor working environment, hole site errors easily caused in the die turnover process, difficulty in forming a reference surface of the monomer shell due to repeated grinding and difficulty in subsequent processing.

Based on the defects, the application provides a steel monomer shell mold forming process based on fsae racing, which comprises the following steps:

the first step is as follows: the cutting part is used for manufacturing each part for manufacturing the monomer shell die by cutting a steel plate and a metal plate through laser;

the second step is that: assuming that the formed single-body shell 7 is arranged, an XYZ rectangular coordinate system is established by taking the center of the bottom surface of the single-body shell as the center of a coordinate system, the top end of the formed single-body shell 7 is positioned on a Z-axis positive axis, the bottom end of the formed single-body shell extends to the X-axis positive axis from an X-axis negative axis, one side of the formed single-body shell 7 is positioned on a Y-axis positive axis, and the other side of the formed single-body shell 7 is;

installing a front plate 1 at the front end of the molded monomer shell 7, wherein the front plate 1 is vertically arranged with an X-axis negative axis;

a left side plate 8 is arranged on one side of the formed monomer shell 7, a right side plate 4 is arranged on the other side of the formed monomer shell, the left side plate 8 and the right side plate 4 are both arranged perpendicular to the Y axis, and the left side plate 8 and the right side plate 4 both extend from the X axis negative axis to the X axis positive axis;

a left bottom plate 9 is arranged on one side of the bottom of the formed monomer shell 7 in the Y-axis positive axis direction, a right bottom plate 5 is arranged on one side of the bottom of the formed monomer shell 7 in the Y-axis negative axis direction, the left bottom plate 9 and the right bottom plate 5 are both arranged perpendicular to the Z axis, and the left bottom plate 9 and the right bottom plate 5 both extend from the X-axis negative axis to the X-axis positive axis;

the left side plate 8, the right side plate 4, the left bottom plate 9, the right bottom plate 5 and the front plate 1 form a circumferential closed structure, and joints of all parts and the front plate 1 are fixedly positioned and connected through bolts;

the third step: the opening end of the circumferential closed structure is covered with a front upper plate 3 and a rear upper plate 6, wherein the front upper plate 3 is positioned in the negative axis direction of the X axis, and the rear upper plate 6 is positioned in the positive axis direction of the X axis;

the fourth step: a plurality of reinforcing ribs 2 are welded on the front upper plate 3, and the reinforcing ribs 2 are arranged at positions which do not influence the hole positions of the front upper plate 3 and are vertical to the bottom surface of the formed monomer shell 7;

the fifth step: the joint position of the right side plate 4 and the right bottom plate 5 is fixedly connected through welding, and the joint position of the left side plate 8 and the left bottom plate 9 is also fixedly connected through welding;

and a sixth step: the left bottom plate 9 and the right bottom plate 5 are preliminarily positioned by matching concave-convex edges and a bolt fixing positioning plate 11, and then a plurality of split die lug combinations 10 are uniformly welded along seams to be fixedly connected;

the seventh step: one end of a left side plate 8 is connected with one side of a front plate 1 through a bolt, one end of a right side plate 4 is connected with the other side of the front plate 1 through a bolt, the other end of the left side plate 8 and the other end of the right side plate 4 are converged in the X-axis positive axis direction, the converged part is preliminarily positioned through mutual matching of concave and convex edges and a bolt fixing positioning plate 11, and then a plurality of split die lug combinations 10 are uniformly welded along a joint to be fixedly connected;

eighth step: the joints of the front upper plate 3, the left side plate 8 and the right side plate 4 are fixedly connected by uniformly welding a plurality of split die lug combinations 10 along seams respectively;

the ninth step: the joints of the rear upper plate 6, the left side plate 8 and the right side plate 4 are fixedly connected through uniformly welding a plurality of split die lug combinations 10 along seams respectively.