CN206122537U - Auto panel die and finite element calculation level cloud device - Google Patents

Abstract

The purpose of this utility model is to provide an automobile panel mold and a finite element calculation point cloud device to solve the existing technology of the existing automobile panel mold with long cycle and low efficiency in the rapid verification of the fine mold surface in the prior art question. A kind of automobile panel mold comprises die, comprises the concave mold cavity of bottom end being concave mold surface and the concave mold guide leg extending longitudinally, the concave direction of the concave mold surface is opposite to the extension direction of the concave mold guide leg; It includes the blankholder profile, the blankholder outer slip-fit guide groove extending longitudinally, the blankholder inner slip-fit guide groove set on the blankholder profile surface and extending longitudinally, and the air top joint extending longitudinally Column, the extension direction of the guide groove of the outer sliding fit of the blank holder ring is opposite to the extension direction of the guide column of the slide fit guide column of the blank holder ring; the punch includes a convex mold core whose top is a convex mold surface and a Extended punch and slip fit guide post with through holes through its thickness.

Description

Automotive panel mold and finite element calculation point cloud device

technical field

The utility model relates to the technical field of moulds, in particular to an automobile cover mold and a finite element calculation point cloud device.

Background technique

With the development of science and the progress of society, people's living standards have been greatly improved, and automobiles have become a popular means of transportation for people. Due to the increasing demand for automobiles, the automobile industry continues to grow, and major automobile manufacturers have higher requirements for the profile accuracy, production cycle and quality of automobile panel molds. When stamping the automobile panel mold, it is necessary to ensure that the precision of the stamped panel meets the design requirements and the quality is stable. For this reason, it is necessary to ensure that the convex and concave model surfaces and the sheet can be in uniform contact at the final moment of stamping. However, due to the pressure Under the action of machine forming, the mold will undergo uneven elastic deformation. At the same time, the sheet material will be correspondingly thinned under extrusion, so that the convex and concave model surfaces of the mold will be in uneven contact with the sheet material, which will eventually lead to The parts have low precision and unstable quality.

In order to solve the above problems, in recent years, a fine die surface design technology based on finite element numerical simulation technology has been developed. The thinning amount of the material is analyzed, and the design engineer designs the fine die surface of the die according to the simulation calculation results. However, the die used to manufacture automobile panels in the prior art includes For parts such as springs, blank holders, dies, fixed plates, lower templates, guide posts, guide sleeves, positioning pins, stopper pins, etc., the design engineer needs to perform finite element analysis on the elastic variables and sheet thickness reduction of the complex mold Numerical simulation analysis and calculation, and finally the calculation results are roughly combined manually to obtain the final result. When performing finite element numerical simulation analysis, it is necessary to carry out procedural analysis on the existing complex molds. Due to the large amount of parameters that need to be analyzed when the mold is used, and the relationship between parameters is complicated, the simulation period is long and the efficiency is low. Therefore, how to provide a high-efficiency, short-cycle automotive panel mold that can quickly verify fine mold surfaces has become an urgent problem to be solved.

Utility model content

The purpose of this utility model is to provide an automobile panel mold and a finite element calculation point cloud device to solve the problem of long cycle and low efficiency in the existing automobile panel mold in the prior art when performing rapid verification of fine mold surfaces question.

The automobile panel mold provided by the utility model comprises: a concave mold, including a concave mold cavity whose bottom end is a concave mold surface and a concave mold guide leg extending longitudinally, the concave direction of the concave mold surface is consistent with the concave mold guide The extension direction of the legs is opposite; the binder ring includes a binder ring profile, a guide groove extending longitudinally on the outer slide of the binder ring, and an inner slide of the blank holder ring that is arranged on the profile surface of the binder ring and extends longitudinally. It is equipped with a guide groove and an air top post extending longitudinally, the extension direction of the guide groove slidingly fitted outside the blank holder ring is opposite to that of the air top post; Model core and be arranged on the outer periphery of described convex model core and the male mold sliding fit guide post that extends longitudinally, and the through hole that runs through its thickness; Described die, described blank holder ring and described punch can be made Arranged in sequence from top to bottom, the concave model surface and the convex model surface can be matched correspondingly to sandwich the blank to be punched, and the blank holder profile can be simultaneously connected to the edge of the concave model surface and the convex model surface The edge of the surface is mated and docked; the guide leg of the die and the outer sliding fit guide groove of the blank holder can be mated and inserted in the longitudinal direction, and the inner slide fit guide groove of the blank holder ring and the sliding fit guide column of the punch can be Fitted and plugged along the longitudinal direction, the air ejector post can pass through the through hole to be docked with the air ejector rod of the machine tool.

Further, there are two guide legs of the die, and the two guide legs of the die are arranged on both sides of the surface of the die; there are two guide grooves for the outer sliding fit of the blank holder ring, and the two guide grooves The outer sliding fitting guide grooves of the blank holder ring are arranged on both sides of the profile of the blank holder ring; the two die guide legs and the two outer sliding fitting guide grooves of the blank holder ring can be plugged one by one.

Further, the guide legs of the die, the surface of the die, and the guide legs of the die are sequentially arranged at intervals along the length direction of the die, and the two guide legs of the die are about the center of the die face symmetry.

Further, the outer sliding fit guide groove of the binder ring, the profile surface of the binder ring, and the outer sliding fit guide groove of the binder ring are sequentially arranged at intervals along the length direction of the binder ring. The outer sliding fit guide groove of the edge ring is symmetrical with respect to the center of the profile of the blank holder ring.

Further, as a further improvement of the above solution, a first protrusion extending longitudinally is provided on the side of the guide leg of the die, and the protrusion direction of the first protrusion faces the die surface; the pressing A second protrusion extending longitudinally is provided on the groove surface of the outer sliding fit guide groove of the edge ring, and the protrusion direction of the second protrusion deviates from the profile of the blank holder ring; when the guide leg of the die is in contact with the When the outer sliding fit guide groove of the blank holder ring is inserted into place, the first protrusion and the second protrusion are completely butted.

Further, as a further improvement of the above solution, there are multiple sliding fit guide grooves in the blank holder ring, and the plurality of sliding fit guide grooves in the blank holder ring are evenly arranged along the axial surface of the blank holder profile; There are a plurality of sliding fit guide columns of the punch, and the plurality of sliding fit guide columns of the punch are evenly arranged along the outer periphery of the male mold core; The sliding guide column of the punch can be matched and plugged one by one.

Further, as a further improvement of the above solution, there are a plurality of air capping posts, and the plurality of air capping posts are uniformly arranged along the outer circumference of the blankholder profile; there are a plurality of through holes, and the plurality of A plurality of said through holes are uniformly arranged along the outer periphery of the convex mold core; a plurality of said air cap posts can pass through the plurality of said through holes in one-to-one correspondence.

Further, as a further improvement of the above solution, the punch further includes a first abutment whose top end is a dead surface, and the first abutment is arranged close to the surface of the convex mold; the blank holder also includes a top end that is The second abutment on the dead surface of the pier, the second abutment is set close to the profile of the blank holder ring; when the sliding fit guide groove in the blank holder ring is inserted in place with the sliding fit guide column of the punch, The dead surface of the first abutment is completely butted against the dead surface of the second abutment.

Further, as a further improvement of the above solution, the die also includes a first pressure regulating table whose top end is a pressure regulating surface, and the first pressure regulating table is arranged close to the surface of the concave mold; the blank holder also includes The top is the second pressure regulating table on the pressure regulating surface, and the second pressure regulating table is set close to the profile of the blank holder; When in place, the pressure regulating surface of the first pressure regulating platform is completely connected to the pressure regulating surface of the second pressure regulating platform.

As a further improvement of the above solution, the utility model also provides a finite element calculation point cloud device, including a computer, and also includes the above-mentioned automobile panel mold, the computer is used to describe the model of the automobile panel mold and Finite element analysis calculations can be performed on the model.

The mold provided by the utility model includes a die, a blank holder and a punch. The die includes a concave mold cavity whose bottom end is a concave mold surface and a concave mold guide leg extending longitudinally. The extension direction of the legs is opposite; the binder ring includes a binder ring profile, a binder ring outer sliding fit guide groove extending longitudinally, and a binder ring inner sliding fit guide groove set on the binder ring profile surface and extending longitudinally , and the air top post extending longitudinally, the extension direction of the sliding guide groove outside the blank holder ring is opposite to the extension direction of the air top post; the punch includes a convex mold core whose top is a convex mold surface and a convex mold core set on On the outer periphery and along the longitudinal extension of the male mold slip-fitting guide column, and through holes through its thickness; the die, blank holder and punch can be arranged in sequence from top to bottom, and the concave model surface and the convex model surface can be matched correspondingly To sandwich the blank to be stamped, the blankholder surface can be matched with the edge of the concave mold surface and the edge of the convex mold surface at the same time; The slip-fitting guide groove in the blank holder ring and the slip-fitting guide post of the punch can be mated and inserted in the longitudinal direction, and the air jack post can pass through the through hole to be docked with the air ejector bar of the machine tool. Therefore, when the design engineer conducts finite element numerical simulation analysis and calculation of the elastic variable and sheet metal thinning of the mold, it only needs to analyze and calculate the matched and connected convex model surface, concave model surface and blankholder surface As a result, the above-mentioned mold has a simple structure and is easy to manufacture under the premise of realizing finite element numerical simulation analysis, thereby reducing the workload of design engineers to analyze complicated parts one by one, thereby achieving the purpose of improving work efficiency and shortening the cycle.

Description of drawings

In order to more clearly illustrate the specific implementation of the utility model or the technical solutions in the prior art, the accompanying drawings that need to be used in the description of the specific implementation or the prior art will be briefly introduced below. Obviously, the following descriptions The accompanying drawings are some implementations of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative work.

Fig. 1 is the overall cross-sectional view one of the automobile panel mold provided by the embodiment of the present invention;

Fig. 2 is the second overall sectional view of the automobile panel mold provided by the embodiment of the present invention;

Fig. 3 is the overall sectional view three of the automobile panel mold provided by the embodiment of the present invention;

Fig. 4 is a sectional view of the die of the automobile panel mold provided by the embodiment of the utility model;

Fig. 5 is the second cutaway view of the die of the automobile panel mold provided by the embodiment of the present invention;

Fig. 6 is the first sectional view of the punch of the automobile panel mold provided by the embodiment of the utility model;

Fig. 7 is the second sectional view of the punch of the automobile panel mold provided by the embodiment of the present invention;

Fig. 8 is a sectional view of the blank holder of the automobile panel mold provided by the embodiment of the present invention;

Fig. 9 is the second sectional view of the blank holder of the automobile panel mold provided by the embodiment of the present invention.

Icons: 10-concave die; 20-binder ring; 30-punch die; 101-concave mold cavity; 102-concave die guide leg; 103-first pressure regulating table; 104-weight reducing hole; 105-following rib ;106-keyway; 107-longitudinal rib; 108-transverse rib; 201-binder ring profile; 202-binder ring outer sliding guide groove; 203-binder ring inner sliding guide groove; 204-safety platform; 205 - second abutment; 206 - second pressure regulating platform; 301 - convex model core; 302 - first abutment; 303 - through hole; 304 - gas cap connection column; 1011 - concave model surface; 1021 - first convex 1031-pressure regulating surface; 2021-second protrusion; 3011-convex model surface; 3012-punch sliding with guide column; 3021-pier dead surface.

detailed description

The technical solutions of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are part of the embodiments of the utility model, but not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, use a specific The azimuth structure and operation, therefore can not be construed as the limitation of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

Figure 1 is the overall sectional view of the automobile panel mold provided by the embodiment of the utility model, Figure 2 is the overall sectional view of the automotive panel mold provided by the embodiment of the utility model, and Figure 3 is the automotive cover provided by the embodiment of the utility model Figure 4 is the overall cross-sectional view of the three-part mold, and Figure 4 is the first cross-sectional view of the concave mold of the automobile panel mold provided by the embodiment of the utility model. Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the automobile panel mold provided in this embodiment includes a die 10, a die cavity with a bottom end being a die surface 1011 and die guide legs extending longitudinally 102, the concave direction of the concave mold surface 1011 is opposite to the extension direction of the concave mold guide leg 102; the binder ring 20 includes the blank holder surface 201, the outer sliding guide groove 202 of the blank holder ring extending in the longitudinal direction and the guide groove 202 arranged on the blank holder ring. The inner sliding fit guide groove 203 on the bezel profile 201 and extending along the longitudinal direction, and the air top post 304 extending along the longitudinal direction, the extension direction of the outer sliding fit guide groove 202 of the blank holder ring and the air top post 304 The extension direction of the convex mold 30 includes a convex mold core 301 whose top end is a convex mold surface 3011, a convex mold sliding fit guide column 3012 that is arranged on the outer periphery of the convex mold core 301 and extends longitudinally, and a through hole that runs through its thickness. Hole 303; Die 10, blank holder 20 and punch 30 can be arranged sequentially from top to bottom. At the same time, it is matched and docked with the edge of the concave mold surface 1011 and the edge of the convex mold surface 3011; the guide leg 102 of the concave mold and the outer sliding fit guide groove 202 of the blank holder can be mated and inserted in the longitudinal direction, and the inner slide fit guide groove 203 of the blank holder ring The punch sliding fit guide post 3012 can be mated and inserted in the longitudinal direction, and the air ejector post 304 can pass through the through hole 303 to be connected with the air ejector rod of the machine tool.

The mold provided by the utility model comprises a die 10, a blank holder 20 and a punch 30, the die 10 includes a concave mold cavity whose bottom end is a concave mold surface 1011 and a concave mold guide leg 102 extending longitudinally, the concave mold surface The concave direction of 1011 is opposite to the extension direction of the die guide leg 102; And the inner sliding fit guide groove 203 of the blank holder ring extending longitudinally, and the air top post 304 extending longitudinally, the extension direction of the outer sliding fit guide groove 202 of the blank holder ring is opposite to the extension direction of the air top post 304; Die 30 comprises the convex mold core 301 that top is convex mold surface 3011 and is arranged on the outer periphery of convex mold core 301 and the convex mold slip fit guide post 3012 that extends longitudinally, and the through hole 303 that runs through its thickness; Die 10, The blank holder 20 and the punch 30 can be arranged sequentially from top to bottom, the concave mold surface 1011 and the convex mold surface 3011 can be matched correspondingly to clamp the blank to be stamped, and the binder ring surface 201 can be matched with the concave mold surface 1011 at the same time. The edge and the edge of the convex mold surface 3011 are mated and docked; the guide leg 102 of the die and the outer sliding fit guide groove 202 of the blank holder can be mated and inserted in the longitudinal direction, and the inner slide fit guide groove 203 of the blank holder ring is fitted with the punch guide column 3012 It can be mated and plugged along the longitudinal direction, and the air ejector post 304 can pass through the through hole 303 to be docked with the air ejector rod of the machine tool. Therefore, when the design engineer conducts finite element numerical simulation analysis and calculation of the elastic deformation and sheet metal thinning of the mold, it is only necessary to carry out the matched and connected convex model surface 3011, concave model surface 1011 and blankholder surface 201 The result of the analysis and calculation shows that the above-mentioned mold has a simple structure and is easy to manufacture under the premise that the finite element numerical simulation analysis can be realized, thereby reducing the workload of the design engineer to analyze the complicated parts one by one, so as to improve work efficiency and shorten the cycle. the goal of.

Please continue to refer to Figure 4, there are two die guide legs 102, and the two die guide legs 102 are arranged on both sides of the concave mold surface 1011; The outer sliding fit guide grooves 202 are arranged on both sides of the blankholder profile 201; the two die guide legs 102 can be inserted into the two blankholder outer sliding fit guide grooves 202 in one-to-one correspondence.

The above-mentioned two guide legs 102 of the die and the outer sliding fit guide grooves 202 of the two blank holder rings are provided to facilitate better and more stable mating connection between the die 10 and the blank holder ring 20, and facilitate The fitting and positioning of the two.

Please continue to refer to Fig. 4, specifically, in order to facilitate the matching connection between the die guide leg 102 and the blank holder 20, and to facilitate the manufacture of the die guide leg 102, the die guide leg 102, the die surface 1011, the die guide leg 102 are sequentially arranged at intervals along the length direction of the die 10 , and the two guide legs 102 of the die are symmetrical about the center of the die surface 1011 .

Fig. 8 is a cross-sectional view of the blankholder 1 of the automobile panel mold provided by the embodiment of the present invention, please refer to Fig. 8, specifically, in order to make the blankholder 20 conveniently and quickly connect with the guide legs of the die during use 102 connection, it is also convenient to manufacture the guide groove 202 for the outer sliding fit of the binder ring, the guide groove 202 for the outer slide fit of the binder ring, the surface 201 of the binder ring, and the guide groove 202 for the outer slide fit of the binder ring 20 along the The longitudinal direction is arranged at intervals in sequence, and the outer sliding fit guide grooves 202 of the two blankholder rings are symmetrical about the center of the blankholder profile surface 201 .

Please continue to refer to Fig. 4 and Fig. 8, specifically, the side of the die guide leg 102 is provided with a first protrusion 1021 extending longitudinally, and the protrusion direction of the first protrusion 1021 faces the concave mold surface 1011; The groove surface of the outer sliding matching guide groove 202 is provided with a second protrusion 2021 extending longitudinally, and the protrusion direction of the second protrusion 2021 is away from the blankholder profile 201; When the slip-fitting guide groove 202 is plugged in place, the first protrusion 1021 and the second protrusion 2021 are completely connected.

On the premise of having the die guide legs 102 and the outer sliding fit guide groove 202 of the blank holder, in order to further improve the connection stability between the blank holder 20 and the die 10, the above-mentioned first protrusion 1021 and the second protrusion are provided. Protrusions 2021, due to the connection relationship between the two, the protruding direction of the first protrusion 1021 is away from the binder ring profile 201, while the protruding direction of the second protrusion 2021 is away from the binder ring profile 201.

Fig. 5 is the second cross-sectional view of the die of the automobile panel mold provided by the embodiment of the present invention. In the automobile panel mold provided by the present embodiment, longitudinal ribs 107 and transverse ribs 108 are provided to facilitate the manufacture of the die 10. At the same time, in order to improve the strength of the concave mold surface 1011, follow-up ribs 105 with the same direction as the concave mold surface 1011 are provided to prevent the concave mold 10 from being damaged due to excessive force during the stamping process during use. ; In order to facilitate the installation of the die 10 and the press, a keyway 106 is provided on the opposite side of the die surface 1011; in addition, because the volume of the automobile panel mold is relatively large and the quality is heavy, it does not affect the performance of the die 10 itself. Under the condition of bearing force, some weight-reducing holes 104 are opened, thereby reducing the load of the press, and also making the installation faster and more convenient for the staff.

Fig. 6 is a sectional view of the punch of the automobile panel mold provided by the embodiment of the present utility model. Fig. 7 is a sectional view of the punch of the automobile panel mold provided by the embodiment of the present utility model. Fig. 9 is a sectional view of the punch provided by the embodiment of the utility model Sectional view 2 of the blankholder ring of the automobile panel mold, please refer to Fig. 6, Fig. 7 and Fig. 9. Specifically, there are multiple sliding fit guide grooves 203 in the blank holder ring, and the sliding fit guide grooves 203 in the multiple blank holder rings are along the The axial surface of the blankholder profile 201 is evenly arranged; there are multiple punch sliding fit guide columns 3012, and a plurality of punch slide fit guide columns 3012 are evenly arranged along the outer periphery of the convex mold core 301; The slip-fit guide groove 203 and the plurality of punch-mold slip-fit guide posts 3012 can be mated and inserted one by one.

A plurality of blankholder ring inner sliding fit guide grooves 203 and a plurality of punch sliding fit guide columns 3012 are provided to improve the installation stability of the blank holder ring 20 and the punch 30, while the plurality of binder ring inner sliding fit guide grooves 203 is evenly arranged along the axial surface of the blankholder profile 201, and a plurality of punch sliding fit guide columns 3012 are evenly arranged along the outer periphery of the male mold core 301, in order to facilitate installation and manufacture, and at the same time improve the convenience of use of both .

Please continue to refer to Fig. 6 and Fig. 9, there are a plurality of air cap posts 304, and the plurality of air cap posts 304 are uniformly arranged along the outer periphery of the blankholder profile 201; there are a plurality of through holes 303, and the plurality of through holes 303 are arranged along The outer periphery of the convex mold core 301 is uniformly arranged; a plurality of air cap posts 304 can pass through a plurality of through holes 303 in one-to-one correspondence.

In the specific operation process, when the die 10 moves toward the punch 30 and the blank holder 20 is in contact with the punch 30 and the sheet is drawn deep, the blank holder 20 is closely connected to the punch 30; When the mold 10 is in the original position and does not work, the binder ring 20 is connected with the punch 30 in contact, and the gas top connection column 304 of the binder ring 20 runs through the through hole 303 on the punch 30 and then connects with the machine tool at the bottom of the punch 30. The air ejector rod is connected, and the air ejector rod on the machine tool lifts the blank holder 20 through the air ejector post 304 on the blank holder 20, thereby reducing the gravity of the punch 30 and improving the service life of the punch 30.

Please continue to refer to Fig. 7, in this embodiment, in order to facilitate the manufacture of the male mold 30, longitudinal ribs 107 and transverse ribs 108 are provided. The follow-up rib 105 prevents the punch 30 from being damaged due to excessive force in the stamping process during use; in addition, because the mold of the automobile panel is relatively large in size and heavy in weight, it does not affect the Under the condition that the punch 30 itself can withstand the force, some weight-reducing holes 104 are provided, thereby reducing the load of the machine tool connected with the punch 30, and also making the installation more rapid and convenient for the staff.

Please continue to refer to Fig. 1, Fig. 2, Fig. 3, Fig. 6 and Fig. 8, the punch 30 also includes a first abutment 302 whose top end is a pier dead surface 3021, and the first abutment 302 is arranged close to the convex mold surface 3011; The blank holder 20 also includes a second abutment 205 whose top end is a pier dead surface 3021, and the second abutment 205 is arranged close to the profile 201 of the binder ring; When the guide post 3012 is plugged in place, the dead surface 3021 of the first abutment 302 is completely butted against the dead surface 3021 of the second abutment 205 .

When the die 10 moves towards the blank holder 20 and the punch 30, since the blank holder 20 is provided with an air top post 304, the binder ring 20 and the die 10 cannot be stably combined, so a set located on the punch The first abutment 302 on the mold 30 and the second abutment 205 on the blank holder 20 are arranged in such a way that when the die 10, the blank holder 20 and the punch 30 are in working condition and are in close contact with each other, the blank holder The pier dead surface 3021 on the punch 20 and the pier dead surface 3021 on the punch 30 are completely butted and fitted.

Please continue to refer to Fig. 4 and Fig. 8, in order to facilitate the mating connection between the die 10 and the blank holder 20, the die 10 also includes a first pressure regulating table 103 whose top end is a pressure regulating surface 1031, and the first pressure regulating table 103 is close to the pressure regulating table 103. The concave mold surface 1011 is set; the binder ring 20 also includes a second pressure regulating table 206 whose top is a pressure regulating surface 1031, and the second pressure regulating table 206 is set close to the blank holder surface 201; when the die guide leg 102 is in contact with the press When the sliding fit guide groove 202 on the outer edge of the edge ring is correspondingly plugged into place, the pressure regulating surface 1031 of the first pressure regulating table 103 and the pressure regulating surface 1031 of the second pressure regulating table 206 are completely connected.

Please continue to refer to Fig. 4, Fig. 6, Fig. 8 and Fig. 9. In order to improve the safety of the mold, a safety platform 204 is set on the concave cavity surface of the die 10, and a safety platform is set on the upper and lower sides of the blank holder 20. 204. A safety platform 204 is also set on the convex mold core 301 of the punch 30, and the safety platforms 204 of the three are matched and connected in one-to-one correspondence.

Please continue to refer to FIG. 8 , in order to reduce the weight of the blank holder 20 , under the precondition that the strength of the blank holder 20 itself is not affected, there are weight reducing holes 104 .

Further, this embodiment also provides a finite element calculation point cloud device, including a computer, and also includes the above automobile panel mold, the computer is used to describe the model of the automobile panel mold and can perform finite element analysis and calculation on the model .

In the existing technology, engineering calculation personnel need to draw extremely complex molds, and then perform point cloud calculation and analysis, but the automobile panel mold provided in this embodiment has a simple structure and can quickly verify the fine mold surface, and Get accurate results, reduce the working time of the staff, not only improve work efficiency but also shorten the mold manufacturing cycle.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand : It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the various embodiments of the present invention Scope of technical solutions.

Claims (10)

1. A car panel mold, characterized in that, comprising: A die, comprising a die cavity whose bottom end is a die face and die guide legs extending longitudinally, the concave direction of the die face is opposite to the extension direction of the die guide legs; The binder ring includes a binder ring profile, a binder ring outer sliding fit guide groove extending longitudinally, and a binder ring inner sliding fit guide groove arranged on the binder ring profile surface and extending longitudinally, and A longitudinally extending air top post, the extension direction of the outer sliding fit guide groove of the blank holder ring is opposite to the extension direction of the air top post; The convex mold includes a convex mold core whose top end is a convex mold surface, a convex mold slip-fit guide post arranged on the outer periphery of the convex mold core and extending longitudinally, and a through hole running through its thickness; The die, the blank holder and the punch can be arranged sequentially from top to bottom, and the concave mold surface and the convex mold surface can be matched correspondingly to clamp the blank to be punched, and the blank holder The molding surface can be matched with the edge of the concave mold surface and the edge of the convex mold surface at the same time; The slip-fit guide groove in the side ring and the slip-fit guide post of the punch can be mated and inserted in the longitudinal direction, and the air jack post can pass through the through hole to be docked with the air ejector pin of the machine tool. 2. The automobile panel mold according to claim 1, wherein there are two guide legs of the die, and the two guide legs of the die are arranged on both sides of the die surface; There are two outer sliding fit guide grooves of the blank holder ring, and the two outer slide fit guide grooves of the blank holder ring are arranged on both sides of the profile surface of the binder ring; The two die guide legs and the two outer sliding fit guide grooves of the blankholder ring can be inserted in one-to-one correspondence. 3. The automobile panel mold according to claim 2, characterized in that, the die guide legs, the die surface, and the die guide legs are sequentially arranged at intervals along the length direction of the die, and the two The two guide legs of the concave mold are symmetrical about the center of the concave mold surface. 4. The automobile panel mold according to claim 3, characterized in that, the outer sliding fit guide groove of the binder ring, the profile surface of the binder ring, and the outer sliding fit guide groove of the binder ring along the The length direction of the binder ring is arranged at intervals in sequence, and the outer sliding fit guide grooves of the two binder rings are symmetrical about the center of the profile of the binder ring. 5. The automobile panel mold according to claim 1, wherein a first protrusion extending longitudinally is provided on the side of the guide leg of the die, and the protrusion direction of the first protrusion faces the said first protrusion. Describe the concave model surface; A second protrusion extending longitudinally is provided on the groove surface of the outer sliding fit guide groove of the blank holder ring, and the protrusion direction of the second protrusion deviates from the profile surface of the blank holder ring; When the guide leg of the die is inserted into the guide groove of the outer sliding fit of the blank holder ring, the first protrusion and the second protrusion are completely butted. 6. The automobile panel mold according to claim 1, characterized in that there are a plurality of sliding fit guide grooves in the blank holder ring, and the plurality of sliding fit guide grooves in the blank holder ring are along the The axial surface of the profile is uniformly set; There are a plurality of sliding fit guide columns of the punch, and the plurality of sliding fit guide columns of the punch are uniformly arranged along the outer periphery of the male mold core; The plurality of sliding fit guide grooves in the blank holder ring and the plurality of sliding fit guide posts of the punch can be matched and inserted one by one. 7. The automobile panel mold according to claim 1, characterized in that there are a plurality of said air capping posts, and the plurality of said air capping posts are evenly arranged along the outer periphery of said blankholder profile; There are a plurality of through holes, and the plurality of through holes are uniformly arranged along the outer periphery of the convex mold core; the plurality of air cap posts can pass through the plurality of through holes in a one-to-one correspondence. 8. The automobile panel mold according to claim 1, wherein the punch further comprises a first abutment whose top end is a dead surface, and the first abutment is arranged close to the surface of the convex mold; The blank holder ring also includes a second abutment whose top end is a pier dead surface, and the second abutment is arranged close to the profile of the blank holder ring; When the slip-fitting guide groove in the blank holder ring is plugged into place with the slip-fitting guide post of the punch, the pier dead surface of the first abutment and the pier dead surface of the second abutment are completely butted. 9. The automobile panel mold according to claim 1, wherein the concave mold further comprises a first pressure regulating table whose top end is a pressure regulating surface, and the first pressure regulating table is arranged close to the concave mold surface ; The binder ring also includes a second pressure regulating table whose top end is a pressure regulating surface, and the second pressure regulating table is set close to the profile of the blank holder ring; When the guide legs of the die are plugged into place correspondingly to the outer sliding guide grooves of the blank holder ring, the pressure regulating surface of the first pressure regulating table is completely connected to the pressure regulating surface of the second pressure regulating table. 10. A point cloud device for finite element calculation, comprising a computer, characterized in that it also includes the automobile panel mold according to any one of claims 1-9, the computer is used to describe the shape of the automobile panel mold model and can perform finite element analysis calculations on the model.