Continuous forming die for automobile support

Abstract

The continuous forming die for the automobile support comprises an upper die base, an upper base plate, an upper fixing plate, a stop plate, a stripper plate, a lower fixing plate, a lower base plate, a lower die base, foot pads and a supporting plate which are sequentially arranged from top to bottom, and torsion forming structures are installed in staggered installation grooves in the two sides of the upper surface of the lower die base; the torsion forming structure comprises a lifting structure which moves up and down along with the upper die base, a translation structure which is connected with the lifting structure and is used for converting the vertical movement of the lifting structure into the horizontal movement, a rotating structure which is connected with the lifting structure and is used for converting the vertical movement of the lifting structure into the axial rotation, and a torsion forming structure for the lifting structure; and the translation structure and the rotating structure are provided with a base structure. By means of the mode, the continuous forming die for the automobile support can conduct machining of multiple working procedures at the same time, the production efficiency is high, accumulated size deviation of products is avoided, and therefore the requirement for high precision is met.

Description

Technical Field

[0001] This invention relates to the field of automobile manufacturing, and in particular to a continuous forming mold for automobile brackets. Background Technology

[0002] Door brackets are important safety and functional components of a car body system. Their performance directly determines the smoothness of door opening and closing, positioning accuracy, and long-term reliability.

[0003] As the automotive industry places increasing demands on safety, durability, and production cost control, brackets are constantly evolving. Traditional bracket structures typically employ a split design, where the vertical load-bearing surface and the main body of the bracket are manufactured separately and then connected by welding. While this manufacturing method simplifies the processing of individual parts, it also introduces significant drawbacks. Welded areas are prone to becoming weak points in structural strength. During the long-term, high-frequency reciprocating stress on the car door, stress concentration may occur at the welded areas, leading to fatigue cracks or even fractures, posing safety hazards. At the same time, the split structure increases the number of parts and assembly steps, which is detrimental to production efficiency and cost control.

[0004] To overcome the above-mentioned defects, existing technologies have proposed an integrated twisted steel core structure. This design integrates the vertical mounting end of the steel core with the main body of the bracket through a metal plastic deformation process. This integrated design eliminates welding weaknesses and significantly improves the mechanical strength and fatigue resistance of the overall structure. However, in the production process, single-station molds are often used for step-by-step processing, which requires multiple processes. This not only results in low production efficiency, but also makes it easy for multiple positioning to lead to cumulative dimensional deviations in the product, making it difficult to meet high precision requirements. Summary of the Invention

[0005] The main technical problem solved by this invention is to provide a continuous forming mold for automobile brackets, which can perform multiple processes simultaneously and has high production efficiency.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: providing a continuous forming mold for an automobile bracket, comprising, from top to bottom, an upper mold base, an upper pad, an upper fixing plate, a stop plate, a stripper plate, a lower fixing plate, a lower pad, a lower mold base, pad feet, and a support plate. A punch penetrating the stop plate and the stripper plate is installed at the bottom of the upper fixing plate, and a die cooperating with the punch is installed on the lower fixing plate. A torsion forming structure is installed in the mounting grooves offset on both sides of the upper surface of the lower mold base. The torsion forming structure is fixedly connected with the lower surface of the upper die seat after penetrating through the accommodation opening of the stop plate, and the torsion forming structure comprises a lifting structure moving up and down with the upper die seat, a translation structure connected with the lifting structure and converting vertical movement of the lifting structure into horizontal translation, a rotating structure connected with the lifting structure and converting vertical movement of the lifting structure into axial rotation, and a base structure for mounting the lifting structure, the translation structure and the rotating structure.

[0007] In a preferred embodiment of the present application, the base structure comprises a fixed mounting bottom plate, a first mounting side plate, a second mounting side plate and a side sealing plate, the fixed mounting bottom plate is fixedly mounted in the mounting groove, the first mounting side plate and the second mounting side plate are both mounted in the positioning groove on the fixed mounting bottom plate, and the side sealing plate is mounted on one side of the first mounting side plate and the second mounting side plate.

[0008] In a preferred embodiment of the present application, a sliding groove parallel to the positioning groove is formed on the fixed mounting bottom plate, a first through-hole groove penetrating through up and down is formed at one end of the sliding groove, a pressing block is mounted on the first mounting side plate, and an accommodation groove matched with the second through-hole groove on the fixed mounting bottom plate is formed on the second mounting plate.

[0009] In a preferred embodiment of the present application, the lifting structure comprises a first lifting strip for driving the translation structure and a second lifting strip for driving the rotating structure, the top of the first lifting strip and the top of the second lifting strip are both fixedly mounted on the bottom surface of the upper die seat, the first lifting strip is matched with the first through-hole groove, and the second lifting strip is matched with the accommodation groove and penetrates through the second through-hole groove.

[0010] In a preferred embodiment of the present application, first and second driving grooves are respectively formed on the side surfaces of the first and second lifting strips, and the bottom of the second lifting strip penetrates through the lower die seat and is connected with a connecting seat mounted on the supporting plate through a second nitrogen gas spring.

[0011] In a preferred embodiment of the present application, the translation structure comprises a sliding table and a first nitrogen gas spring, the sliding strip at the bottom of the sliding table is matched with the sliding groove on the fixed mounting bottom plate, and the first nitrogen gas spring is arranged in the circular hole at one end of the sliding table.

[0012] In a preferred embodiment of the present application, a driving table is arranged on the upper surface of the other end of the sliding table which is symmetrical to the first nitrogen gas spring, a chamfer matched with the first driving groove is formed on the driving table, a third through-hole groove matched with the first through-hole groove is formed beside the chamfer, and the first through-hole groove and the third through-hole groove are both matched with the first lifting strip.

[0013] In a preferred embodiment of the present application, the sliding table is provided with a limiting slot on the side of the second lifting strip, and the second lifting strip is connected with the limiting slot through sliding connection.

[0014] In a preferred embodiment of the present application, the rotating structure comprises a rotating head, a fixing seat and an angle adjusting block, the fixing seat is installed on the sliding table, and the rotating head is connected with the angle adjusting block through a rotating bearing installed in the fixing seat.

[0015] In a preferred embodiment of the present application, the rotating head is provided with a twisting mouth at the top end, which is matched with the installation end head, and the angle adjusting block is provided with a circular arc block matched with the second driving slot.

[0016] The present application has the advantages that the continuous forming die for the automobile support can simultaneously perform multiple process machining, has high production efficiency, and has no product cumulative size deviation, thereby meeting the high-precision requirement. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a perspective view of a continuous forming die for an automobile support.

[0018] Figure 2 It is a partial perspective view of a torsion forming structure in a continuous forming die for an automobile support.

[0019] Figure 3 It is a partial perspective view of a sliding table installed on a fixed installation base plate in a continuous forming die for an automobile support.

[0020] Figure 4 It is a partial perspective view of a lifting structure, a translation structure and a rotating structure connected in a continuous forming die for an automobile support.

[0021] Figure 5 It is a partial perspective view of a lifting structure and a translation structure connected in a continuous forming die for an automobile support.

[0022] Figure 6 It is a top view of the position relationship between a torsion forming structure and a baffle in a continuous forming die for an automobile support.

[0023] Figure 7 It is a schematic diagram of a sheet metal machining process during production of a continuous forming die for an automobile support.

[0024] Figure 8 It is a perspective view of a product produced by a continuous forming die for an automobile support.

[0025] The labels of the components in the drawings are as follows: 1, upper die holder; 2, upper pad; 3, upper fixed plate; 4, stop plate; 5, stripping plate; 6, lower fixed plate; 7, lower pad; 8, lower die holder; 9, pad foot; 10, supporting plate; 11, clearance; 12, fixed mounting bottom plate; 13, first mounting side plate; 14, second mounting side plate; 15, side sealing plate; 16, mounting groove; 17, sliding groove; 18, first through-hole groove; 19, second through-hole groove; 20, third through-hole groove; 21, first lifting bar; 22, second lifting bar; 23, first drive groove; 24, second drive groove; 25, first nitrogen spring; 26, second nitrogen spring; 27, sliding table; 28, drive table; 29, limiting groove; 30, rotating head; 31, fixed seat; 32, angle adjusting block; 33, twisted mouth; 34, circular arc shifting block; 35, mounting end; 36, bracket body; 37, plate material; 38, connecting seat; 39, baffle. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present application are described in detail below to make the advantages and features of the present application more easily understood by those skilled in the art, so as to make the protection scope of the present application more clearly defined.

[0027] According to Figures 1 to 8 A continuous forming die for automobile brackets comprises, from top to bottom, an upper die holder 1, an upper pad 2, an upper fixed plate 3, a stop plate 4, a stripping plate 5, a lower fixed plate 6, a lower pad 7, a lower die holder 8, a pad foot 9, and a supporting plate 10. The upper fixed plate 3 is provided at the bottom with a male die penetrating through the stop plate 4 and the stripping plate 5. The lower fixed plate 6 is provided at the top with a female die matched with the male die. The lower die holder 8 is provided at the top surface with two side-offset mounting grooves 16, in which a twist forming structure is mounted. The twist forming structure is arranged in a two-side-offset manner, so that both sides can be machined at the same time, thereby improving the machining efficiency.

[0028] The twist forming structure is fixedly connected with the lower surface of the upper die holder 1 after penetrating through the clearance 11 of the stop plate 4. The twist forming structure comprises a lifting structure moving up and down with the upper die holder 1, a translation structure connected with the lifting structure to convert the vertical movement of the lifting structure into horizontal movement, a rotating structure connected with the lifting structure to convert the vertical movement of the lifting structure into axial rotation, and a base structure for mounting the lifting structure, the translation structure, and the rotating structure. The die can simultaneously perform multiple process machining, has high production efficiency, and has no product cumulative dimensional deviation, thereby meeting the high-precision requirements.

[0029] The base structure comprises a fixed installation bottom plate 12, a first installation side plate 13, a second installation side plate 14 and a side sealing plate 15, the fixed installation bottom plate 12 is fixedly installed in the installation groove 16, the first installation side plate 13 and the second installation side plate 14 are both installed in the positioning groove on the fixed installation bottom plate 12, and the side sealing plate 15 is installed on one side of the first installation side plate 13 and the second installation side plate 14.

[0030] A sliding groove 17 parallel to the positioning groove is formed on the fixed installation bottom plate 12, and the sliding groove 17 is used for linear sliding of the sliding table 27.

[0031] One end of the sliding groove 17 is provided with a first through-hole groove 18 penetrating up and down, and the first through-hole groove 18 is used for the first lifting bar 21 to give way when lifting.

[0032] The first installation side plate 13 is provided with a pressing block, and the pressing block is used for limiting the upper end of the sliding table 27.

[0033] The second installation plate is provided with a give-way groove matched with the second through-hole groove 19 on the fixed installation bottom plate 12, and the give-way groove is used for the up-down movement of the second lifting bar 22, so that the movement is more stable.

[0034] The lifting structure comprises a first lifting bar 21 for driving the translation structure and a second lifting bar 22 for driving the rotation structure, and the first lifting bar 21 and the second lifting bar 22 drive the movement of the sliding table 27 and the rotation of the rotating head 30 under the driving of the upper die seat 1, so as to complete the torsion of the installation end head 35.

[0035] The top of the first lifting bar 21 and the second lifting bar 22 is fixedly installed on the bottom surface of the upper die seat 1, and the first lifting bar 21 and the second lifting bar 22 are driven by the upper die seat 1.

[0036] The first lifting bar 21 is matched with the first through-hole groove 18, the second lifting bar 22 is matched with the give-way groove and penetrates through the second through-hole groove 19, the side surfaces of the first lifting bar 21 and the second lifting bar 22 are respectively provided with a first driving groove 23 and a second driving groove 24, the first driving groove 23 and the second driving groove 24 are respectively matched with the driving table 28 and the circular arc block 34, and are used for driving the movement of the sliding table 27 and the rotation of the rotating head 30.

[0037] The bottom of the second lifting bar 22 penetrates through the lower die seat 8, is connected with a connecting seat 38 installed on the supporting plate 10 through a second nitrogen gas spring 26, and the second nitrogen gas spring 26 is used for the reset of the second lifting bar 22.

[0038] The translation structure includes a sliding table 27 and a first nitrogen spring 25, the sliding strip at the bottom of the sliding table 27 is matched with the sliding groove 17 on the fixed installation bottom plate 12, so that the sliding table 27 moves more stably.

[0039] The first nitrogen spring 25 is arranged in the round hole at one end of the sliding table 27, the first nitrogen spring 25 is connected with the lower fixed plate 6, which is used for the reset of the sliding table 27 after the upper die holder 1 rises, so that the rotating head 30 is separated from the installation end head 35, and the board material 37 is conveniently moved to the next station.

[0040] The two first nitrogen springs 25 are in contact with the baffle 39 at the center of the lower die holder 8, the baffle 39 provides a reaction force for the first nitrogen spring 25, so that the sliding table 27 is conveniently reset.

[0041] The other end of the upper surface of the sliding table 27 which is symmetrical with the first nitrogen spring 25 is provided with a driving table 28, the driving table 28 is provided with a chamfer matched with the first driving groove 23, the sliding table 27 is moved through the chamfer after the first lifting strip 21 is lowered, and the torsion mouth 33 is connected with the installation end head 35 which is not twisted.

[0042] The chamfer is provided with a third through hole groove 20 matched with the first through hole groove 18, the first through hole groove 18 and the third through hole groove 20 are matched with the first lifting strip 21, so as to facilitate the lifting of the first lifting strip 21.

[0043] The sliding table 27 is provided with a limiting groove 29 on the side of the second lifting strip 22, one side of the second lifting strip 22 is connected with the limiting groove through up-down sliding connection, and the other side is connected with the limiting groove 29 through horizontal sliding connection, the width of the limiting groove 29 is greater than the width of the second lifting strip 22, so that the sliding table 27 is not affected by the second lifting strip 22 when moving.

[0044] The rotating structure includes a rotating head 30, a fixed seat 31 and an angle adjusting block 32, the fixed seat 31 is installed on the sliding table 27, the rotating head 30 is connected with the angle adjusting seat through the rotating bearing installed in the fixed seat 31, so that the rotating head 30 can rotate together when the second lifting strip 22 drives the angle adjusting block 32 to rotate, so as to complete the torsion of the installation end head 35 into the state perpendicular to the support body 36.

[0045] The rotating head 30 top end is provided with a twist mouth 33 matched with the mounting end head 35, the angle adjusting seat is provided with a circular arc block 34 matched with the second driving groove 24, the circular arc block 34, the first driving groove 23 and the second driving groove 24 are matched, so that when the upper die seat 1 is lowered, the twist mouth 33 is connected with the mounting end head 35 first, then the twist is carried out, and when the upper die seat 1 is raised, the slide table 27 is reset under the action of the first nitrogen gas spring 25, the second driving groove 24 is matched with the circular arc block 34, so that the rotating head 30 is rotated and reset.

[0046] When processing, when the twist process is reached, the upper die seat 1 is lowered, the first lifting strip 21 and the second lifting strip 22 are lowered at the same time, the slide table 27 is moved, the twist mouth 33 is connected with the mounting end head 35 first, then the twist is completed with the continuous lowering of the second lifting strip 22, then the upper die seat 1 is raised, the slide table 27 is reset under the action of the first nitrogen gas spring 25, the second lifting strip 22 is reset and raised under the action of the second nitrogen gas spring 26, so that the rotating head 30 is reset, and a complete processing step is completed.

[0047] Compared with the prior art, the continuous forming die for the automobile support can simultaneously carry out multi-process processing, has high production efficiency, and has no product cumulative size deviation, so that the high precision requirement is met.

[0048] In the description of the present application, it should be noted that the components are all general standard components or components known to those skilled in the art, the structure and principle of which can be known by the technical personnel through the technical manual or through the conventional test method, the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0049] The above is only an embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation obtained by using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A continuous forming mold for an automobile bracket, comprising, from top to bottom, an upper mold base, an upper pad, an upper fixing plate, a stop plate, a stripper plate, a lower fixing plate, a lower pad, a lower mold base, a pad foot, and a support plate, wherein a punch penetrating the stop plate and the stripper plate is mounted on the bottom of the upper fixing plate, and a die cooperating with the punch is mounted on the lower fixing plate, characterized in that, A torsion forming structure is installed in the staggered mounting grooves on both sides of the upper surface of the lower mold base; The torsion forming structure passes through the clearance opening of the stop plate and is fixedly connected to the lower surface of the upper mold base. The torsion forming structure includes a lifting structure that moves up and down with the upper mold base, a translation structure connected to the lifting structure that converts its vertical movement into horizontal movement, a rotation structure connected to the lifting structure that converts its vertical movement into axial rotation, and a base structure for mounting the lifting structure, the translation structure, and the rotation structure.

2. The continuous forming die for an automobile bracket according to claim 1, characterized in that, The base structure includes a fixed mounting base plate, a first mounting side plate, a second mounting side plate, and a side sealing plate. The fixed mounting base plate is fixedly installed in the mounting groove. The first mounting side plate and the second mounting side plate are both installed in the positioning grooves on the fixed mounting base plate. The side sealing plate is installed on one side of the first mounting side plate and the second mounting side plate.

3. The continuous forming die for an automobile bracket according to claim 2, characterized in that, The fixed mounting base plate has a sliding groove parallel to the positioning groove, and one end of the sliding groove has a first through hole groove that runs vertically through the base plate. A pressure block is installed on the first mounting side plate, and a clearance groove is provided on the second mounting plate to cooperate with the second through hole groove on the fixed mounting base plate.

4. The continuous forming die for an automobile bracket according to claim 3, characterized in that, The lifting structure includes a first lifting bar for driving the translation structure and a second lifting bar for driving the rotation structure. The tops of the first lifting bar and the second lifting bar are fixedly installed on the bottom surface of the upper mold base. The first lifting bar cooperates with the first through-hole groove, and the second lifting bar cooperates with the clearance groove and passes through the second through-hole groove.

5. The continuous forming die for an automobile bracket according to claim 4, characterized in that, The first lifting bar and the second lifting bar are respectively provided with a first driving groove and a second driving groove on their sides. The bottom of the second lifting bar passes through the lower mold base and is connected to the connecting seat installed on the support plate through a second nitrogen spring.

6. The continuous forming die for an automobile bracket according to claim 5, characterized in that, The translation structure includes a slide table and a first nitrogen spring. The slide bar at the bottom of the slide table cooperates with the slide groove on the fixed mounting base plate. The first nitrogen spring is disposed in a circular hole at one end of the slide table.

7. The continuous forming die for an automobile bracket according to claim 6, characterized in that, A drive platform is provided on the upper surface of the other end of the slide platform that is symmetrical to the first nitrogen spring. A chamfer is provided on the drive platform to cooperate with the first drive groove. A third through-hole groove is provided next to the chamfer to cooperate with the first through-hole groove. Both the first through-hole groove and the third through-hole groove cooperate with the first lifting bar.

8. The continuous forming die for an automobile bracket according to claim 6, characterized in that, The slide table has a limiting groove on the side of the second lifting bar. One side of the second lifting bar is slidably connected to the clearance groove vertically, and the other side is slidably connected to the limiting groove horizontally.

9. A continuous forming die for an automobile bracket according to claim 6, characterized in that, The rotating structure includes a rotating head, a fixed base, and an angle adjusting block. The fixed base is mounted on the slide table, and the rotating head is connected to the angle adjusting base through a rotating bearing installed in the fixed base.

10. A continuous forming die for an automobile bracket according to claim 9, characterized in that, The top of the rotating head is provided with a twisting nozzle that cooperates with the mounting end, and the angle adjustment seat is provided with an arc-shaped lever that cooperates with the second drive groove.

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