Secondary rollback structure for shaping automobile covering part

Abstract

The utility model relates to the technical field of automobile covering part dies, in particular to a secondary retreating structure for reshaping an automobile covering part, which comprises an upper die and a lower die. A first inclined wedge (1) is arranged on the lower die; a second tapered wedge (2) is arranged on the first tapered wedge (1); a first sliding structure is arranged between the first wedge (1) and the lower die; a second sliding structure is arranged between the second inclined wedge (2) and the first inclined wedge (1); a male die (3) is arranged on the second inclined wedge (2); the first tapered wedge (1) and the second tapered wedge (2) both abut against an upper die; the male die (3) abuts against the covering part. The second tapered wedge can slide left and right on the first tapered wedge; the first wedge can slide back and forth on the top of the lower die; after the die is completely closed, the position of the male die is adjusted through sliding of the first wedge and the second wedge, and the male die can be just located at the negative angle of the automobile covering part for shape conforming operation.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile panel dies. Specifically, the utility model relates to a secondary retraction structure for shaping automobile panels. Background Technique

[0002] In the design process of large automobile panels, in order to improve the aesthetic sense of the product, usually the overlapping part between the fender and the hood and the product at the lamp corner are relatively narrow, and the position is usually an internal buckling negative angle for part taking. Therefore, during the structural design, it will be vertically removed at the negative angle; however, the product at the lamp corner is relatively narrow, and the existing shaping structure cannot conform to the negative angle, and at the same time, it cannot avoid the negative angle when taking and placing parts during mold opening and closing.

[0003] The applicant searched and found that the Chinese patent document with the publication number CN203791472U disclosed a side shaping module and a side shaping wedge mechanism on August 27, 2014. The side shaping body includes a side shaping slider and a side shaping insert fixedly installed on the side shaping slider. The side shaping module further includes a side shaping upper pressure core, which is slidably connected with the side shaping body along the guiding direction above the side shaping insert; a side shaping lower pressure core, which is slidably connected with the side shaping body along the guiding direction below the side shaping insert; an upper elastic force applying mechanism for applying an upper pressure force along the guiding direction to the side shaping upper pressure core; a lower elastic force applying mechanism connected between the side shaping body and the side shaping lower pressure core to apply a lower pressure force along the guiding direction to the side shaping lower pressure core; this device also cannot solve the above technical problems.

[0004] Therefore, in order to improve or solve at least one of the above problems, it is necessary to optimize the existing automobile panel shaping device. Content of the Utility Model

[0005] The purpose of the utility model is to provide a secondary retraction structure for shaping automobile panels, which can conform to the negative angle of the automobile panel and can avoid the negative angle when taking and placing parts during mold opening and closing.

[0006] To solve the above technical problems, the technical solution adopted by the utility model is: a secondary retraction structure for shaping automobile panels, including an upper die and a lower die; a first wedge is provided on the lower die; a second wedge is provided on the first wedge; a first sliding structure is provided between the first wedge and the lower die; a second sliding structure is provided between the second wedge and the first wedge; a punch is provided on the second wedge; both the first wedge and the second wedge are in contact with the upper die; the punch is in contact with the panel.

[0007] The second wedge includes a mounting base plate and a mounting block provided on the top of the mounting base plate; a punch is provided at one end of the mounting base plate; the upper die includes a sizing blade block; and the covering member is provided between the punch and the sizing blade block.

[0008] The first sliding structure includes a first guide rail; the first guide rail is provided on the top surface of the lower die; a first clamping groove is provided at the bottom of the first wedge; and the first guide rail is clamped in the first clamping groove.

[0009] The second sliding structure includes a second guide rail; the second guide rail is provided on the top surface of the first wedge; a second clamping groove is provided at the bottom of the second wedge; and the second guide rail is clamped in the second clamping groove.

[0010] The first wedge includes a bottom plate and a side plate provided on the top of the bottom plate; a first insert knife is provided on the side plate; the upper die includes a first upper die insert knife; and the first upper die insert knife abuts against the first insert knife.

[0011] A second insert knife is provided on one side of the mounting block; the upper die includes a second upper die insert knife; and the second upper die insert knife abuts against the second insert knife.

[0012] First and second baffles are respectively provided on both sides of the bottom plate; a second nitrogen spring is provided between the mounting base plate and the first baffle.

[0013] A first limiting block is provided on the first baffle; a second limiting block is provided on the second baffle; and the mounting base plate is provided between the first limiting block and the second limiting block.

[0014] A first fixing plate is provided on one side of the bottom plate away from the second wedge; a first nitrogen spring is provided between the first fixing plate and the bottom plate; and a second fixing plate is provided at one end of the bottom plate away from the first fixing plate.

[0015] The lower die includes wedge side plates; the wedge side plates are respectively provided on both sides of the bottom plate; a limiting pressure block is provided on the side surface of the bottom plate; a pressing cover is provided on the top of the wedge side plate; and the limiting pressure block is provided at the bottom of the pressing cover.

[0016] Wing plates are respectively provided on both sides of the mounting base plate; a limiting baffle is provided on the bottom plate; a wedge pressing plate is provided on the top of the limiting baffle; and the wing plates are provided at the bottom of the wedge pressing plate.

[0017] The second upper die insert knife is connected to a driving insert knife mounting seat; the first insert knife, the second insert knife, the first upper die insert knife and the second upper die insert knife all include an end slope and a blade side surface; a positioning hole is provided on the bottom plate; and the positioning hole is provided at the bottom of the first upper die insert knife.

[0018] The beneficial effects of this application are as follows:

[0019] 1. The second wedge of this device can slide left and right along the second guide rail on the first wedge; the first wedge can slide back and forth along the first guide rail on the top of the lower die;

[0020] When the upper die and the lower die are closed, the second upper die insert knife abuts against the second insert knife. The second insert knife receives a thrust force and slides along the second guide rail towards the first baffle, thereby driving the punch to slide; the first upper die insert knife abuts against the first insert knife, and the first insert knife receives a backward thrust force, so that the first wedge moves backward along the first guide rail; when the die is fully closed, the position of the punch is adjusted by the sliding of the first wedge and the second wedge, and it can be exactly located at the negative angle of the automotive panel for profiling operation;

[0021] When the upper and lower dies are opened, the second upper die insert knife is separated from the second insert knife, and the first upper die insert knife is separated from the first insert knife. The first nitrogen spring and the second nitrogen spring respectively push the first insert knife and the second insert knife to reset, so that the punch withdraws from the negative angle, which can facilitate the installation of the automotive panel on the lower die before mold closing and facilitate the removal of the automotive panel with the negative angle profiled after mold opening.

[0022] This device is improved based on the principle of the pulling-back wedge, and the direction conversion is realized through the pulling-back wedges in two directions; by using the secondary steering mechanism, the structure can be compact, space can be saved, and products with complex shapes such as fenders can be satisfied.

[0023] 2. A punch is provided at one end of the second wedge of this application; the punch is provided at the bottom of the negative angle of the automotive panel; a profiling knife block is provided on the upper die at the top of the automotive panel; the profiling knife block and the punch can cooperate to realize the profiling operation of the negative angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The following further details the specific embodiments of the present utility model with reference to the drawings, where:

[0025] Figure 1 is a schematic structural diagram of the secondary retraction structure for profiling the automotive panel.

[0026] Figure 2 is a schematic structural diagram of the first wedge of the secondary retraction structure for profiling the automotive panel.

[0027] Figure 3 is a schematic bottom structural diagram of the first wedge of the secondary retraction structure for profiling the automotive panel.

[0028] Figure 4 is a schematic structural diagram of the second wedge of the secondary retraction structure for profiling the automotive panel.

[0029] Figure 5 This is a schematic diagram of the structure of the first insert knife for the secondary retraction structure used in the shaping of automotive panel parts.

[0030] The markings in the above figures are all:

[0031] The markings in the figure are:

[0032] 1. First wedge, 101. Bottom plate, 102. Side plate, 103. First insert knife, 104. First fixing plate, 105. First baffle, 106. Second baffle, 107. First limit block, 108. Second limit block, 109. Second fixing plate,

[0033] 2. Second wedge, 201. Installation bottom plate, 202. Installation block, 203. Second insert knife,

[0034] 3. Punch,

[0035] 4. First guide rail, 401. First card slot,

[0036] 5. Second guide rail, 501. Second card slot,

[0037] 6. First upper die insert knife, 601. Second upper die insert knife,

[0038] 7. First nitrogen spring, 701. Second nitrogen spring,

[0039] 8. Shaping tool block,

[0040] 9. Wedge side plate,

[0041] 10. Limit pressing block,

[0042] 11. Driving insert knife mounting seat, 110. Pressing cover, 111. Wing plate, 112. Limit baffle, 113. Wedge pressing plate, 114. End inclined surface, 115. Knife body side surface, 116. Displacement hole. Detailed implementation manners

[0043] The following is a further detailed description of the specific implementation manners of the present utility model by describing the embodiments with reference to the accompanying drawings, aiming to help those skilled in the art have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present utility model and facilitate its implementation.

[0044] Figure 1The secondary retraction structure for shaping automotive panel parts shown in the figure includes an upper die and a lower die; a first wedge 1 is provided on the lower die; a second wedge 2 is provided on the first wedge 1; a first sliding structure is provided between the first wedge 1 and the lower die; a second sliding structure is provided between the second wedge 2 and the first wedge 1; a punch 3 is provided on the second wedge 2; both the first wedge 1 and the second wedge 2 are in contact with the upper die; the punch 3 is in contact with the panel part.

[0045] The second wedge 2 can slide left and right on the first wedge 1; the first wedge 1 can slide back and forth on the top of the lower die; when the die is fully closed, the position of the punch 3 is adjusted by the sliding of the first wedge 1 and the second wedge 2, and it can be exactly located at the negative angle of the automotive panel part for profiling operation; when the upper and lower dies are opened, it can be realized to facilitate the installation of the automotive panel part on the lower die before closing the die, and to facilitate the removal of the automotive panel part after profiling at the negative angle after opening the die.

[0046] The second wedge 2 includes a mounting base plate 201 and a mounting block 202 provided on the top of the mounting base plate 201; a punch 3 is provided at one end of the mounting base plate 201; the upper die includes a profiling knife block 8; the panel part is provided between the punch 3 and the profiling knife block 8.

[0047] The mounting base plate 201 is a square plate and is provided on the top surface of the first wedge 1; the mounting block 202 is a Z-shaped block; the mounting block 202 is provided on the top of the mounting base plate 201 and is provided at one end away from the punch 3; the profiling knife block 8 is a triangular structure; the punch 3 is provided with a profiling surface; the punch 3 is provided at the bottom of the negative angle of the automotive panel part; the top of the automotive panel part is provided with a profiling knife block 8 provided on the upper die; the profiling knife block 8 and the punch 3 can cooperate to realize the profiling operation of the negative angle.

[0048] The first sliding structure includes a first guide rail 4; the first guide rail 4 is provided on the top surface of the lower die; a first card slot 401 is provided at the bottom of the first wedge 1; the first guide rail 4 is clamped in the first card slot 401;

[0049] The second sliding structure includes a second guide rail 5; the second guide rail 5 is provided on the top surface of the first wedge 1; a second card slot 501 is provided at the bottom of the second wedge 2; the second guide rail 5 is clamped in the second card slot 501.

[0050] Both the top of the first guide rail 4 and the second guide rail 5 are provided with triangular end faces; the cross sections of both the first card slot 401 and the second card slot 501 are triangular; the first guide rail 4 and the second guide rail 5 are vertically arranged; two first guide rails 4 are provided on the top surface of the lower die, and the two first guide rails 4 are diagonally arranged below the first wedge 1; the cooperation of the first guide rail 4 and the first card slot 401 can realize the back-and-forth sliding operation of the first wedge 1 on the lower die; the cooperation of the second guide rail 5 and the second card slot 501 can realize the left-and-right interaction of the second wedge 2 on the first wedge 1.

[0051] The first wedge 1 includes a bottom plate 101 and a side plate 102 provided on the top of the bottom plate 101; a first insert knife 103 is provided on the side plate 102; the upper die includes a first upper die insert knife 6; the first upper die insert knife 6 abuts against the first insert knife 103.

[0052] The first insert knife 103 is provided on the side of the side plate 102 close to the second wedge 2; two first insert knives 103 are symmetrically arranged on the side surface of the side plate 102; the cutting edge of the first insert knife 103 faces upward; the cutting edge of the first upper die insert knife 6 faces downward; when the upper die and the lower die are closed, the first upper die insert knife 6 abuts tightly against the first insert knife 103, and the first insert knife 103 receives a backward thrust, so that the first wedge 1 moves backward along the first guide rail 4.

[0053] A second insert knife 203 is provided on one side of the mounting block 202; the upper die includes a second upper die insert knife 601; the second upper die insert knife 601 abuts against the second insert knife 203.

[0054] The second insert knife 203 is provided on the side of the mounting block 202 close to the punch 3; the cutting edge of the second upper die insert knife 601 faces downward, and the cutting edge of the second insert knife 203 faces upward; when the upper die and the lower die are closed, the second upper die insert knife 601 abuts tightly against the second insert knife 203, and the second insert knife 203 receives a thrust and slides along the second guide rail 5 towards the first baffle 105, thereby driving the punch 3 to slide.

[0055] First baffles 105 and second baffles 106 are respectively provided on both sides of the bottom plate 101; a second nitrogen spring 701 is provided between the mounting bottom plate 201 and the first baffle 105;

[0056] A first limit block 107 is provided on the first baffle 105; a second limit block 108 is provided on the second baffle 106; the mounting bottom plate 201 is provided between the first limit block 107 and the second limit block 108.

[0057] When the upper and lower dies are closed, the second nitrogen spring 701 is in a compressed state; when the dies are opened, the second nitrogen spring 701 pushes the second wedge 2 to reset; the first limit block 107 is a rigid limit block; the second limit block 108 is a flexible limit block; the first limit block 107 and the second limit block 108 limit the left and right sliding of the second wedge 2.

[0058] A first fixing plate 104 is provided on the side of the bottom plate 101 away from the second wedge 2; a first nitrogen spring 7 is provided between the first fixing plate 104 and the bottom plate 101; a second fixing plate 109 is provided at one end of the bottom plate 101 away from the first fixing plate 104.

[0059] Both the first fixing plate 104 and the second fixing plate 109 are square plates and are fixedly connected to the lower die. When the upper and lower dies are closed, the first nitrogen spring 7 is in a compressed state. When the die is opened, the first nitrogen spring 7 pushes the first wedge 1 to reset. The second fixing plate 109 can limit the front-back sliding of the first wedge 1.

[0060] The lower die includes wedge side plates 9. The wedge side plates 9 are respectively arranged on both sides of the bottom plate 101. A limit pressing block 10 is arranged on the side surface of the bottom plate 101. A gland 110 is arranged on the top of the wedge side plate 9. The limit pressing block 10 is arranged at the bottom of the gland 110.

[0061] The wedge side plate 9 is a square plate and is fixedly connected to the lower die. The wedge side plate 9 can guide and limit the sliding of the first wedge 1. The gland 110 is fixedly connected to the top of the wedge side plate 9. The gland 110 presses against the top of the limit pressing block 10, which can prevent the first wedge 1 from tilting up and disengaging from the first guide rail 4 when being impacted.

[0062] Wing plates 111 are respectively arranged on both sides of the mounting bottom plate 201. A limit baffle 112 is arranged on the bottom plate 101. A wedge pressing plate 113 is arranged on the top of the limit baffle 112. The wing plates 111 are arranged at the bottom of the wedge pressing plate 113.

[0063] The wing plates 111 and the mounting bottom plate 201 are of an integral structure. The limit baffle 112 can limit and guide the sliding of the second wedge 2. The wedge pressing plate 113 presses against the top of the wing plates 111, which can prevent the second wedge 2 from tilting up and disengaging from the second guide rail 5 when being impacted.

[0064] The second upper die insert 601 is connected to the driving insert mounting seat 11. The first insert 103, the second insert 203, the first upper die insert 6 and the second upper die insert 601 all include an end slope 114 and a blade side surface 115. A positioning hole 116 is arranged on the bottom plate 101. The positioning hole 116 is arranged at the bottom of the first upper die insert 6.

[0065] When the first upper die insert 6 contacts the first insert 103, first, the end slopes 114 of the two contact each other. As the upper die descends, the blade side surfaces 115 of the two abut against each other, thereby realizing pushing the first wedge 1 backward. When the second upper die insert 601 contacts the second upper die insert 601, first, the end slopes 114 of the two contact each other. As the upper die descends, the blade side surfaces 115 of the two abut against each other, thereby realizing pushing the second wedge 2 towards the first baffle 105.

[0066] The stroke of the second insert 203 is greater than the vertical stroke of the first insert 103. When the press descends, when the upper die descends together with the press, after the second wedge 2 is in place, the first wedge 1 starts to move. When the press ascends, when the upper die ascends with the press, after the first wedge 1 is in place, the second wedge 2 starts to move.

[0067] The specific working process of the present utility model is as follows:

[0068] Install the first wedge 1 at the negative angle position of the lower die close to the automotive panel; install the second wedge 2 on the first wedge 1; install the automotive panel on the lower die; close the upper die and the lower die, and the negative angle surface operation of the automotive panel can be completed; when the die is opened, the first wedge 1 and the second wedge 2 are reset to avoid interfering with the picking of the automotive panel.

[0069] The present utility model has been described exemplarily in conjunction with the accompanying drawings. Obviously, the specific implementation of the present utility model is not limited by the above methods. As long as various non-substantive improvements are made by adopting the method concept and technical solution of the present utility model; or without improvement, the above concept and technical solution of the present utility model are directly applied to other occasions, they are all within the protection scope of the present utility model.

Claims

1. A secondary retraction structure for shaping automobile covering parts, characterized in that: It includes an upper die and a lower die; a first swaging wedge (1) is provided on the lower die; a second swaging wedge (2) is provided on the first swaging wedge (1); a first sliding structure is provided between the first swaging wedge (1) and the lower die; a second sliding structure is provided between the second swaging wedge (2) and the first swaging wedge (1); a punch (3) is provided on the second swaging wedge (2); both the first swaging wedge (1) and the second swaging wedge (2) are in contact with the upper die; the punch (3) is in contact with the covering part.

2. The secondary retraction structure for shaping automotive panel according to claim 1, characterized in that: The second swaging wedge (2) includes a mounting base plate (201) and a mounting block (202) provided on the top of the mounting base plate (201); one end of the mounting base plate (201) is provided with the punch (3); the upper die includes a sizing tool block (8); the covering part is provided between the punch (3) and the sizing tool block (8).

3. A secondary retraction structure for shaping automotive body panels according to claim 2, characterized in that: The first sliding structure includes a first guide rail (4); the first guide rail (4) is provided on the top surface of the lower die; a first card slot (401) is provided at the bottom of the first swaging wedge (1); the first guide rail (4) is clamped in the first card slot (401). The second sliding structure includes a second guide rail (5); the second guide rail (5) is provided on the top surface of the first swaging wedge (1); a second card slot (501) is provided at the bottom of the second swaging wedge (2); the second guide rail (5) is clamped in the second card slot (501).

4. A secondary retraction structure for shaping automotive body panels according to any one of claims 2-3, characterized in that: The first swaging wedge (1) includes a base plate (101) and a side plate (102) provided on the top of the base plate (101); a first insert knife (103) is provided on the side plate (102); the upper die includes a first upper die insert knife (6); the first upper die insert knife (6) is in contact with the first insert knife (103).

5. A secondary retraction structure for shaping automotive body panels according to claim 4, characterized in that: A second insert knife (203) is provided on one side of the mounting block (202); the upper die includes a second upper die insert knife (601); the second upper die insert knife (601) is in contact with the second insert knife (203).

6. A secondary retraction structure for shaping automotive body panels according to claim 5, characterized in that: First baffles (105) and second baffles (106) are respectively provided on both sides of the base plate (101); a second nitrogen spring (701) is provided between the mounting base plate (201) and the first baffle (105). A first limit block (107) is provided on the first baffle (105); a second limit block (108) is provided on the second baffle (106); the mounting base plate (201) is provided between the first limit block (107) and the second limit block (108).

7. A secondary retraction structure for shaping automotive body panels according to any one of claims 5-6, characterized in that: A first fixing plate (104) is provided on one side of the base plate (101) away from the second swaging wedge (2); a first nitrogen spring (7) is provided between the first fixing plate (104) and the base plate (101); a second fixing plate (109) is provided at one end of the base plate (101) away from the first fixing plate (104).

8. A secondary retraction structure for shaping automotive body panels according to claim 7, characterized in that: The lower die includes a swaging side plate (9); the swaging side plates (9) are respectively arranged on both sides of the bottom plate (101); a limiting pressure block (10) is arranged on the side surface of the bottom plate (101); a gland (110) is arranged at the top of the swaging side plate (9); the limiting pressure block (10) is arranged at the bottom of the gland (110).

9. A secondary retraction structure for shaping automotive panel parts according to claim 8, characterized in that: Wing plates (111) are respectively arranged on both sides of the mounting bottom plate (201); a limiting baffle (112) is arranged on the bottom plate (101); a swaging pressure plate (113) is arranged at the top of the limiting baffle (112); the wing plates (111) are arranged at the bottom of the swaging pressure plate (113).

10. A secondary retraction structure for shaping automotive body panels according to any one of claims 8-9, characterized in that: The second upper die inserting knife (601) is connected with a driving inserting knife mounting seat (11); the first inserting knife (103), the second inserting knife (203), the first upper die inserting knife (6) and the second upper die inserting knife (601) all include an end slope (114) and a knife body side surface (115); a positioning hole (116) is arranged on the bottom plate (101); the positioning hole (116) is arranged at the bottom of the first upper die inserting knife (6).

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