Bending and punching composite die for light-weight aluminum bumper profile of automobile

Abstract

The invention discloses an automobile lightweight aluminum bumper profile bending and punching composite die which comprises an upper die assembly, a lower die assembly and a lower die assembly. The upper die assembly comprises a first die plate and an upper positioning cavity formed in the first die plate; the lower mold assembly comprises a second mold plate corresponding to the first mold plate and a lower positioning cavity formed in the second mold plate; the bending positioning assembly comprises a bottom plate arranged in the lower positioning cavity, a bending positioning part arranged on the bottom plate and a bending clamping piece arranged on the bottom plate, and the bending clamping piece is matched with the bending positioning part to jointly achieve section bar bending position selection and clamping; the punching and positioning assembly comprises a punching part arranged in the upper positioning cavity and a punching and positioning part arranged on the punching part, and the punching and positioning part moves on the bottom plate and moves to the profile to position the punching position after the profile is bent; the bending positioning assembly and the punching positioning assembly are integrally arranged.

Description

Technical Field

[0001] The invention relates to the technical field of bending and punching, and in particular to a composite bending and punching die for a lightweight aluminum bumper profile of an automobile. Background Art

[0002] In the prior art, it is necessary to use a mold to process the lightweight aluminum bumper profile of an automobile to meet the specified requirements. In the prior art, the aluminum profile is usually processed by a rolling bending process and a stretch bending process using an existing mold.

[0003] Existing stamping dies usually only have the function of punching and opening holes. Often, a product needs to go through multiple processes to be processed and formed, such as bending, punching, forming, etc. This also results in the need for multiple devices to process the same product with different processes, which makes the equipment investment cost relatively high and the operation efficiency relatively low. Therefore, the purpose of this application is to provide a composite die with both bending and punching functions, so as to reduce the cost of equipment investment and improve production efficiency. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the problems existing in the above-mentioned existing composite dies for bending and punching lightweight aluminum bumper profiles for automobiles, the present invention is proposed.

[0006] Therefore, the object of the present invention is to provide a composite die for bending and punching a lightweight aluminum bumper profile for an automobile.

[0007] To solve the above technical problems, the present invention provides the following technical solutions: a composite mold for bending and punching a lightweight aluminum bumper profile for an automobile, comprising an upper mold assembly, wherein the upper mold assembly comprises a first mold plate and an upper positioning cavity provided on the first mold plate; a lower mold assembly, wherein the lower mold assembly comprises a second mold plate corresponding to the first mold plate and a lower positioning cavity provided on the second mold plate; a bending positioning assembly, comprising a base plate arranged in the lower positioning cavity, a bending positioning component arranged on the base plate, and a bending clamp arranged on the base plate, wherein the bending clamp cooperates with the bending positioning component to realize the selection and clamping of the bending position of the profile; and a punching positioning assembly, comprising a punching component arranged in the upper positioning cavity and a punching positioning component arranged on the punching component, wherein the punching positioning component moves on the base plate and moves to the profile to position the punching position after the profile is bent; the bending positioning assembly and the punching positioning assembly are integrated.

[0008] As a preferred solution of the composite bending and punching die for lightweight aluminum bumper profiles of automobiles of the present invention, the bending and positioning component comprises a first positioning plate arranged on the bottom plate, a second positioning plate arranged in the upper positioning cavity, and an offset member arranged at both ends of the first positioning plate and the second positioning plate, wherein the offset member is used to adjust the distance position between the ends of the first positioning plate and the second positioning plate and the bottom plate,

[0009] A stamping groove is arranged between the first positioning plate and the second positioning plate, and surfaces of the first positioning plate and the second positioning plate form arc surfaces.

[0010] As a preferred solution of the automotive lightweight aluminum bumper profile bending and punching composite mold described in the present invention, the offset part includes a first top column slidably connected to the base plate, a second top column arranged beside the first top column, a locking bolt arranged on the base plate, and a card hole opened on the second positioning plate, and the locking bolt pushes the second top column to move up and down after moving.

[0011] As a preferred solution of the automotive lightweight aluminum bumper profile bending and punching composite mold described in the present invention, the punching component includes a supporting plate arranged on the base plate, a ring plate arranged on the supporting plate, and a downward pressing punch plate arranged in the upper positioning cavity, a plurality of punching heads are provided on the downward pressing punch plate, and the punching positioning component is arranged on the supporting plate.

[0012] As a preferred solution of the automotive lightweight aluminum bumper profile bending and punching composite mold described in the present invention, the punching positioning component includes a sliding block arranged on a supporting plate, a punching protection plate arranged on the sliding block, and a positioning protrusion opened on the punching protection plate, the sliding block is slidingly connected to the supporting plate, a screw is provided on the supporting plate, the sliding block is connected to the screw, and a rotating handle is provided on one side of the supporting plate.

[0013] As a preferred solution of the composite die for bending and punching lightweight aluminum bumper profiles for automobiles described in the present invention, a vacuum adsorption component is provided on the positioning protrusion, and an adsorption air pump connected to the vacuum adsorption component is provided at the lower end of the positioning protrusion.

[0014] As a preferred solution of the composite mold for bending and punching lightweight aluminum bumper profiles for automobiles described in the present invention, a first positioning block is provided at one end of the ring plate, a second positioning block is provided near the first positioning block of the ring plate, and two second positioning blocks are provided and symmetrically arranged.

[0015] As a preferred solution of the composite die for bending and punching the lightweight aluminum bumper profile of the automobile described in the present invention, a positioning rod is provided between the second die plate and the first die plate.

[0016] The beneficial effects of the present invention are as follows: when performing stamping, the operator first places the mold from the front end, and uses the inclined surface to make the profile slide naturally between the first template part and the second template part, and then enters the stamping groove at this time. At this time, the first downward pressure is performed, and the downward pressure punch is used to punch. After punching, the operator slides the sliding block so that the sliding block drives the punching protection plate close to the profile, and uses the vacuum adsorption part on the positioning protrusion to adsorb the profile, and then the operator slides the sliding block in the opposite direction, so that the sliding block drives the profile to move to the second positioning plate, and then the second downward pressure is performed to perform stamping and bending.

[0017] The mold has a compact overall structure, and the bending operation can be performed immediately after punching. In addition, due to the arrangement of the punching groove, the profile will not fall off during the processing, thereby maintaining the integrity of the overall shape of the profile. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0019] Figure 1 It is a schematic diagram of the overall structure of the composite die for bending and punching a lightweight aluminum bumper profile for an automobile according to the present invention.

[0020] Figure 2 This is a schematic diagram of the cross-sectional internal structure of the composite die for bending and punching a lightweight aluminum bumper profile for an automobile according to the present invention.

[0021] Figure 3 It is a schematic diagram of the lower die assembly described in the composite die for bending and punching of lightweight aluminum bumper profiles for automobiles of the present invention.

[0022] Figure 4 This is a schematic diagram of the upper die assembly described in the composite die for bending and punching a lightweight aluminum bumper profile for an automobile of the present invention.

[0023] Figure 5 It is an enlarged schematic diagram of the offset member described in the composite die for bending and punching of lightweight aluminum bumper profiles for automobiles of the present invention.

[0024] Figure 6 It is a schematic diagram of the actual stamping state of the composite die for bending and punching a lightweight aluminum bumper profile for automobiles of the present invention.

[0025] Figure 7 This is a cross-sectional schematic diagram of the composite die for bending and punching a lightweight aluminum bumper profile for an automobile according to the present invention. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0029] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0030] Example 1

[0031] Reference Figure 1-7 The present invention discloses a composite mold for bending and punching a lightweight aluminum bumper profile for an automobile, including an upper mold assembly 100. In this embodiment, the upper mold assembly 100 includes a first mold plate 101 and an upper positioning cavity 102 opened on the first mold plate 101. The first mold plate 101 is box-shaped as a whole, and the upper positioning cavity 102 is opened on the lower surface of the first mold plate 101.

[0032] Furthermore, the present invention also includes a lower mold assembly 200. In this embodiment, the lower mold assembly 200 includes a second mold plate 201 corresponding to the first mold plate 101 and a lower positioning cavity 202 opened on the second mold plate 201. The upper positioning cavity 102 is opened on the upper surface of the second mold plate 201, and the upper positioning cavity 102 and the lower positioning cavity 202 are opened correspondingly. When closing the mold, the first mold plate 101 is pressed downward to cooperate with the second mold plate 201 to complete the bending action.

[0033] Furthermore, a bending positioning assembly 300 is provided between the first module plate 101 and the second module plate 201. The bending positioning assembly 300 includes a base plate 301 arranged in the lower positioning cavity 202. The base plate 301 is connected to the lower positioning cavity 202 and is fastened by bolts. A bending positioning component 302 is also provided on the base plate 301. The bending positioning component 302 can position the profile to be bent to prevent the profile from shaking during stamping and to position the position to be bent. A bending clamp 303 is also provided on the base plate 301. The bending clamp 303 cooperates with the bending positioning component 302 to realize the selection and clamping of the bending position of the profile.

[0034] Furthermore, the present invention also includes a punching positioning assembly 400. In the present embodiment, the punching positioning assembly 400 includes a punching component 401 disposed in the upper positioning cavity 102 and a punching positioning component 402 disposed on the punching component 401. The punching positioning component 402 moves on the bottom plate 301 and moves to the profile after the profile is bent to position the punching position. The bending positioning assembly 300 and the punching positioning assembly are integrated.

[0035] Furthermore, the bending positioning component 302 includes a first positioning plate 302a arranged on the base plate 301, a second positioning plate 302b arranged on the first positioning plate 302a, and an offset member 304 arranged at both ends of the first positioning plate 302a and the second positioning plate 302b, the offset member 304 is used to adjust the distance position between the end of the second positioning plate 302b and the base plate 301, a stamping groove 305 is arranged on the first positioning plate 302a, and an arc surface is formed on the surface of the second positioning plate 302b.

[0036] Furthermore, the offset member 304 includes a first top column 304a slidably connected to the base plate 301, a second top column 304b arranged next to the first top column 304a, a locking bolt 304d arranged at the upper end of the base plate 301 and a clamping hole 304c opened on the base plate 301, and a rotating ring is provided at the end of the second positioning plate 302b near the clamping hole 304c, and the rotating shafts extending from both ends of the rotating ring are rotatably connected to the clamping hole 304c, so that when the inclination of the second positioning plate 302b is adjusted, the connection between the two ends of the second positioning plate 302b remains stable, and washers are provided on the upper and lower sides of the rotating ring to ensure the friction between the two ends when the connection is locked, and locking members are provided between the lower ends of the first top column 304a and the second top column 304b and the base plate 301.

[0037] Furthermore, in the present embodiment, the locking member comprises a connecting concave block 601 arranged near the second positioning plate 302b, the connecting concave block 601 is connected to the inside of the bottom plate 301 by means of threads, and then a slot 602 is opened in the connecting concave block 601, the slot 602 is opened in the horizontal direction, and both ends are connected to the connecting concave block 601 outwardly, and then an adjusting rod 603 is also rotatably connected to the opening position of the slot 602 near one end of the pipe, one end of the adjusting rod 603 is close to the socket of the slot 602, and the whole is inclined, and a latching tooth 604 cooperating with the connecting tooth 502 is also provided, and at the same time, the rotation plane of the adjusting rod 603 is vertically arranged, so that after the connecting layer 501 is inserted into the slot 602, the latching tooth 604 at the upper end of the adjusting rod 603 cooperates with the connecting tooth 502, so that the connecting layer 501 can be stopped.

[0038] Furthermore, a bracket 605 is provided in the bottom plate, and the bracket 605 supports the adjustment rod 603 so that the adjustment rod 603 can rotate in the vertical direction. Then, a connecting rod 606 is slidably connected in the vertical direction on the bottom plate. A reset button 607 extends from the lower end of the connecting rod 606. The overall shape of the reset button 607 is a regular hexagon, which can also serve as a reinforcement. Then, a press button 608 is also provided at the upper end of the connecting rod 606, and an elastic member 609 is provided between the reset button 607 and the support plate. In this embodiment, the elastic member 609 is a tension spring, which can always drive the connecting rod 606 to move downward.

[0039] Then, a buckle ring 609a is rotatably connected to one end of the adjustment rod 603 close to the push button 608. The buckle ring 609a is set at the lower end of the push button 608, and the rotating plane is set vertically. Then, in order to achieve locking, a card key is set at the lower end of the push button 608. There are two card keys, which extend outward and are symmetrical at 180°. Then, a key slot that cooperates with the card key is opened at the mouth of the circular hole. The key slot and the card key are interference fit, so that after being locked, it will not be reset due to the elastic force of the elastic member 609.

[0040] Furthermore, the punching component 401 includes a supporting plate 401a arranged on the bottom plate 301, a ring plate 401b arranged on the supporting plate 401a, and a downward pressing punch plate 401c arranged in the upper positioning cavity 102, a plurality of punching heads 401d are provided on the downward pressing punch plate 401c, and the punching positioning component 402 is arranged on the supporting plate 401a.

[0041] In this embodiment, the punching positioning component 402 includes a sliding block 402a arranged on the supporting plate 401a, a punching protection plate 402b arranged on the sliding block 402a, and a positioning protrusion 402c opened on the punching protection plate 402b. The sliding block 402a is slidingly connected to the supporting plate 401a, a screw 402d is provided on the supporting plate 401a, the sliding block 402a is connected to the screw 402d, and a rotating handle 402e is provided on one side of the supporting plate 401a.

[0042] Preferably, a spring is provided at the lower end of the positioning protrusion 402c, and the spring always pushes the positioning protrusion 402c upward. When punching, the pressing punch plate 401c will first abut against the positioning protrusion 402c and press the positioning protrusion 402c downward.

[0043] Preferably, a vacuum adsorption component is provided on the positioning protrusion 402c, and an adsorption air pump connected to the vacuum adsorption component is provided at the lower end of the positioning protrusion 402c. The vacuum adsorption component includes an exhaust hole opened on the side wall of the positioning protrusion 402c and an exhaust pipe connected to the exhaust hole, and the exhaust pipe is connected to the adsorption air pump.

[0044] Furthermore, a first positioning block 403 is provided at one end of the ring plate 401b, and a second positioning block 403 is provided on the ring plate 401b near the first positioning block 403. There are two second positioning blocks 403, which are symmetrically arranged. The first positioning block 403 is used for positioning, and the second positioning block 403 is used to cooperate in stamping and bending.

[0045] A positioning rod 500 is provided between the second module plate 201 and the first module plate 101 .

[0046] Operation process: When stamping, the operator first places it from the front end of the mold, and uses the inclined surface to make the profile slide naturally between the first mold plate 101 and the second mold plate 201, and then enters the stamping groove 305. At this time, the first downward pressure is performed, and the downward pressure punch plate 401c is used to punch. After punching, the operator slides the sliding block 402a, so that the sliding block 402a drives the punching protection plate 402b close to the profile, and uses the vacuum adsorption part on the positioning protrusion 402c to adsorb the profile, and then the operator slides the sliding block 402a in the opposite direction, so that the sliding block 402a drives the profile to move to the second positioning plate 302b. At this time, the second downward pressure is performed to perform stamping and bending.

[0047] The mold has a compact overall structure, and the bending operation can be performed immediately after punching. In addition, due to the arrangement of the punching groove 305, the profile will not fall off during the processing, thereby maintaining the integrity of the overall shape of the profile.

[0048] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0049] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0050] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A composite die for bending and punching lightweight aluminum bumper profiles for automobiles, characterized in that: include, An upper mold assembly (100), the upper mold assembly comprising a first mold plate (101) and an upper positioning cavity (102) provided on the first mold plate (101); A lower mold assembly (200), the lower mold assembly (200) comprising a second mold plate (201) corresponding to the first mold plate (101) and a lower positioning cavity (202) opened on the second mold plate (201); A bending positioning assembly (300) comprises a bottom plate (301) arranged in a lower positioning cavity (202), a bending positioning component (302) arranged on the bottom plate (301), and a bending clamp (303) arranged on the bottom plate (301), wherein the bending clamp (303) cooperates with the bending positioning component (302) to realize the position selection and clamping of the profile bending; and A punching positioning assembly (400) comprises a punching component (401) arranged in an upper positioning cavity (102) and a punching positioning component (402) arranged on the punching component (401), wherein the punching positioning component (402) moves on the bottom plate (301) and moves onto the profile after the profile is bent to position the punching position; The bending positioning assembly (300) and the punching positioning assembly (400) are arranged in an integrated manner.

2. The composite die for bending and punching lightweight aluminum bumper profiles for automobiles according to claim 1, characterized in that: The bending positioning component (302) comprises a first positioning plate (302a) arranged on the bottom plate (301), a second positioning plate (302b) arranged on the first positioning plate (302a), and offset members (304) arranged at both ends of the second positioning plate (302b), wherein the offset members (304) are used to adjust the distance between the ends of the first positioning plate (302a) and the second positioning plate (302b) and the bottom plate (301). The first positioning plate (302a) is provided with a stamping groove (305), and the surface of the second positioning plate (302b) is formed into an arc surface.

3. The composite die for bending and punching lightweight aluminum bumper profiles for automobiles as claimed in claim 2, characterized in that: The offset member (304) comprises a first top column (304a) slidably connected to the bottom plate (301), a second top column (304b) arranged beside the first top column (304a), a locking bolt (304d) arranged on the bottom plate (301), and a clamping hole (304c) opened on the second positioning plate (302b); after the locking bolt (304d) moves, it pushes the first top column (304a) or the second top column (304b) to move up and down.

4. The composite die for bending and punching lightweight aluminum bumper profiles for automobiles according to claim 1, characterized in that: The punching component (401) comprises a supporting plate (401a) arranged on the bottom plate (301), a ring plate (401b) arranged on the supporting plate (401a), and a downward pressing punch plate (401c) arranged in the upper positioning cavity (102); a plurality of punching heads (401d) are provided on the downward pressing punch plate (401c), and the punching positioning component (402) is arranged on the supporting plate (401a).

5. The composite bending and punching die for lightweight aluminum bumper profiles for automobiles as claimed in claim 4, characterized in that: The punching positioning component (402) comprises a sliding block (402a) arranged on a supporting plate (401a), a punching protection plate (402b) arranged on the sliding block (402a), and a positioning protrusion (402c) provided on the punching protection plate (402b); the sliding block (402a) is slidingly connected to the supporting plate (401a); a lead screw (402d) is provided on the supporting plate (401a); the sliding block (402a) is connected to the lead screw (402d); and a rotating handle (402e) is provided on one side of the supporting plate (401a).

6. The composite bending and punching die for lightweight aluminum bumper profiles for automobiles according to claim 1, characterized in that: A vacuum adsorption component is provided on the positioning protrusion (402c), and an adsorption air pump connected to the vacuum adsorption component is provided at the lower end of the positioning protrusion (402c).

7. The composite bending and punching die for lightweight aluminum bumper profiles for automobiles according to claim 6, characterized in that: A first positioning block (403) is provided at one end of the ring plate (401b), and a second positioning block (403) is provided on the ring plate (401b) near the first positioning block (403). Two second positioning blocks (403) are provided and are symmetrically arranged.

8. The composite bending and punching die for lightweight aluminum bumper profiles for automobiles according to claim 6 or 7, characterized in that: A positioning rod (500) is provided between the second module plate (201) and the first module plate (101).

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