A bending forming die for anti-collision beam

Abstract

The present invention discloses a press-bending forming die for an anti-collision beam, the press-bending forming die comprising an upper die and a lower die, the height of the forming surface of the upper die gradually increasing from the middle portion to the two ends, and further comprising: a clamping assembly comprising two clamping units, the two clamping units being respectively arranged at the two ends of the anti-collision beam, the clamping units comprising: a rotating frame rotatably connected to the lower die, and the rotating frame clamping one end of the anti-collision beam. In the present invention, a clamping unit is respectively provided at both ends of the anti-collision beam, and the end of the workpiece is fixed by the rotating frame in the clamping unit. During the press-bending forming process of the anti-collision beam, the rotating frame rotates following the forming of the anti-collision beam, so that the end of the anti-collision beam and the middle portion can be press-bent together.

Description

Technical Field

[0001] The present invention relates to the technical field of forming dies, and in particular to a press-bending forming die for an anti-collision beam. Background Art

[0002] The press-bending forming die includes an upper die and a lower die. The forming surfaces of the upper die and the lower die both have a certain curvature. The upper die moves downward to form the workpiece between the forming surfaces of the upper die and the lower die.

[0003] However, the existing bending forming mold has the following defects:

[0004] First, the two ends of the workpiece are fixedly clamped on the lower die. During molding, the middle of the workpiece is bent downward while the two ends remain fixed. When the entire workpiece needs to be bent, the existing die cannot achieve the bending of the two ends along with the middle.

[0005] Second, the molding surface of the upper mold needs to fit the upper surface of the workpiece, and the molding surface of the lower mold also needs to fit the lower surface of the workpiece before the workpiece can be formed. Both the upper and lower molds need to have molding surfaces, and the mold opening cost is relatively high. Summary of the Invention

[0006] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to propose a press-bending forming die for an anti-collision beam, which is used to solve the problems in the prior art where the two ends of the workpiece cannot be bent and formed together with the middle part.

[0007] The technical solution adopted by the present invention to solve the technical problem is a press-bending forming die for an anti-collision beam, the press-bending forming die comprising an upper die and a lower die, the height of the forming surface of the upper die gradually increasing from the middle to the two ends, and further comprising:

[0008] The clamping assembly includes two clamping units, which are respectively arranged at both ends of the anti-collision beam. The clamping unit includes a rotating frame, which is rotatably connected to the lower mold, and the rotating frame clamps one end of the anti-collision beam.

[0009] Furthermore, when the press-bending forming mold is in a clamped state, the upper surface of the anti-collision beam is in contact with the forming surface of the upper mold, and the lower surface of the anti-collision beam is separated from the lower mold.

[0010] Furthermore, both ends of the anti-collision beam are hollow;

[0011] The rotating frame is further provided with an inserting core unit, which comprises an inserting block slidably connected to the rotating frame, and the inserting block slides relative to the rotating frame to extend into or out of the end of the anti-collision beam.

[0012] Furthermore, the clamping unit further comprises a fixed frame, which is fixedly connected to the lower mold, and the rotating frame is rotatably arranged on the fixed frame;

[0013] A sliding groove is provided on the rotating frame along the length direction of the anti-collision beam, and the inserting block is arranged in the sliding groove and can slide along the length direction of the sliding groove.

[0014] Furthermore, the core inserting unit further includes a first driving cylinder, one end of which is connected to the rotating frame, and the other end of which is connected to the inserting block.

[0015] Furthermore, the rotating frame has a first rotating part and a second rotating part, and the first rotating part is hinged to the fixed frame;

[0016] The clamping unit further includes a second driving cylinder, one end of which is hinged to the second rotating part, and the other end of which is hinged to the lower mold.

[0017] Furthermore, the rotating frame further has an extension portion, and the lower surface of the end portion of the anti-collision beam is connected to the upper surface of the extension portion;

[0018] A limiting block is further provided on the lower die, and when the press-bending die is in a closed state, the limiting block abuts against the lower surface of the extension portion.

[0019] Furthermore, the lower surface of the extension portion is concave upward to form a first limiting curved surface, and the upper surface of the limiting block is convex upward to form a second limiting curved surface, and the first limiting curved surface can be at least partially fitted with the second limiting curved surface.

[0020] Furthermore, an adjustment seat is fixedly connected to the lower die, and a locking hole is provided on the adjustment seat;

[0021] The limit block is further provided with a waist-shaped through hole along the length direction of the anti-collision beam, the waist-shaped through hole is connected to the locking hole bolt, and the bolt can slide in the waist-shaped through hole;

[0022] A limiting seat is further provided on one side of the adjustment seat, and a limiting column is threadedly connected to the limiting seat. One end of the limiting column passes through the limiting seat and abuts against the side wall of the limiting block.

[0023] Furthermore, a skirt is extended outwards from both sides of the lower surface of the anti-collision beam;

[0024] The extending portion is further provided with an in-place detection block, and the in-place detection block can abut against the skirt.

[0025] Compared with the prior art, the present invention has at least the following beneficial effects:

[0026] (1) A clamping unit is provided at each end of the anti-collision beam. The ends of the workpiece are fixed by a rotating frame in the clamping unit. During the press-bending process of the anti-collision beam, the rotating frame rotates along with the forming of the anti-collision beam, so that the ends and the middle part of the anti-collision beam can be press-bent together.

[0027] (2) A rotating frame is provided at each end of the anti-collision beam to clamp the two ends of the anti-collision beam. When the anti-collision beam is formed, the rotating frame rotates along with the forming of the middle part. There is no need to open a forming surface on the lower mold. Only the forming surface needs to be opened on the upper mold to press and bend the entire anti-collision beam, thereby reducing the cost of mold opening.

[0028] (3) Combined with the curvature adjustment of the upper mold forming surface and the position of the limit block on the adjustment seat, the overall forming curvature of the anti-collision beam can be adjusted to meet different usage requirements and realize the adjustment of the forming curvature of the mold.

[0029] (4) A limit seat and a limit column are provided. When the rotating frame rotates until the extension part and the limit block are against each other, the force applied by the extension part to the limit block can be decomposed into a horizontal component force toward the limit column. At this time, the limit column applies a reverse force to the limit block to offset the horizontal component force of the extension part on the limit block, thereby preventing the limit block from being displaced during the forming process due to excessive force applied by the extension part on the limit block, thereby causing the forming curvature to be greater than the preset curvature. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 Schematic diagram of the structure of the bending forming mold before mold closing in the embodiment;

[0031] Figure 2 Schematic diagram of the structure of the press-bending forming mold in the embodiment when the mold is closed;

[0032] Figure 3 Schematic diagram of the structure of the lower mold and the anti-collision beam in the embodiment;

[0033] Figure 4 Schematic diagram of the structure of the clamping unit in the embodiment;

[0034] Figure 5 Schematic diagram of the structure of the limit block, the adjustment seat and the limit seat in the embodiment;

[0035] Figure 6 Schematic diagram of the structure of the anti-collision beam and the in-place detection block in the embodiment;

[0036] In the picture:

[0037] 100. Upper mold;

[0038] 200, lower die; 210, limiting block; 211, second limiting curved surface; 212, waist-shaped through hole; 220, adjustment seat; 221, locking hole; 230, limiting seat; 240, limiting column;

[0039] 300, anti-collision beam;

[0040] 400, clamping unit; 410, rotating frame; 411, extension part; 412, first limiting curved surface; 413, in-place detection block; 420, fixed frame; 430, insert block; 440, first drive cylinder; 450, second drive cylinder. DETAILED DESCRIPTION

[0041] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0042] Please refer to Figures 1-6 The present invention discloses a bending forming die for an anti-collision beam, the bending forming die comprising an upper die 100 and a lower die 200, wherein the height of the forming surface of the upper die 100 gradually increases from the middle to the two ends, and further comprising:

[0043] The clamping assembly includes two clamping units 400, which are respectively arranged at both ends of the anti-collision beam 300. The clamping unit 400 includes: a rotating frame 410, which is rotatably connected to the lower mold 200, and the rotating frame 410 clamps one end of the anti-collision beam 300.

[0044] Specifically, the present application provides a clamping unit 400 at each end of the anti-collision beam 300, and fixes the end of the workpiece by a rotating frame 410 in the clamping unit 400. During the press-bending process of the anti-collision beam 300, the rotating frame 410 rotates along with the forming of the anti-collision beam 300, so that the end and the middle part of the anti-collision beam 300 can be press-bent together.

[0045] Furthermore, when the press-bending mold is in a clamped state, the upper surface of the anti-collision beam 300 is in contact with the molding surface of the upper mold 100 , and the lower surface of the anti-collision beam 300 is separated from the lower mold 200 .

[0046] It should be noted that if a rotating frame 410 is not provided to clamp the anti-collision beam 300, both the upper mold 100 and the lower mold 200 need to be provided with forming surfaces, and the anti-collision beam 300 is placed on the forming surface of the lower mold 200 and pressed downward by the upper mold 100 to be formed.

[0047] In the present application, a rotating frame 410 is provided at each end of the anti-collision beam 300 to clamp the ends of the anti-collision beam 300. During the molding of the anti-collision beam 300, the rotating frame 410 rotates along with the molding of the middle portion. This eliminates the need for forming surfaces on the lower mold 200. The entire anti-collision beam 300 can be press-bent by simply forming surfaces on the upper mold 100. This eliminates the need for forming surfaces on the lower mold 200, reducing mold making costs.

[0048] Furthermore, both ends of the anti-collision beam 300 are hollow;

[0049] The rotating frame 410 is further provided with an insert unit, which includes an insert block 430 slidably connected to the rotating frame 410 . The insert block 430 slides relative to the rotating frame 410 to extend into or out of the end of the anti-collision beam 300 .

[0050] Since the lower mold 200 of the present application is not provided with a forming surface, a core unit is provided on the rotating frame 410, so that the insert block 430 in the core unit is extended into the end of the anti-collision beam 300 before the anti-collision beam 300 is formed. During the forming process, the insert block 430 is abutted against the inner wall of the end of the anti-collision beam 300, so that the end of the anti-collision beam 300 can be bent into shape according to a preset bending curvature.

[0051] Furthermore, the clamping unit 400 further includes a fixed frame 420, which is fixedly connected to the lower mold 200, and the rotating frame 410 is rotatably disposed on the fixed frame 420;

[0052] A sliding groove is formed on the rotating frame 410 along the length direction of the anti-collision beam 300 , and the insert block 430 is disposed in the sliding groove and can slide along the length direction of the sliding groove.

[0053] Furthermore, the core insertion unit further includes a first driving cylinder 440 , one end of which is connected to the rotating frame 410 , and the other end of which is connected to the inserting block 430 .

[0054] A first driving cylinder 440 is provided, and the first driving cylinder 440 is extended and retracted to drive the insert block 430 to slide in the slide groove so as to extend into or out of the end of the anti-collision beam 300.

[0055] Specifically, before molding, the anti-collision beam 300 is placed on the rotating frame 410, and the first driving cylinder 440 is retracted to drive the insert block 430 to extend into the end of the anti-collision beam 300; after the molding is completed, the first driving rod is extended to drive the insert block 430 to withdraw from the end of the anti-collision beam 300, and then the anti-collision beam 300 can be removed.

[0056] Furthermore, the rotating frame 410 has a first rotating portion and a second rotating portion, and the first rotating portion is hinged to the fixed frame 420;

[0057] The clamping unit 400 further includes a second driving cylinder 450 , one end of the second driving cylinder 450 is hinged to the second rotating portion, and the other end of the second driving cylinder 450 is hinged to the lower mold 200 .

[0058] Specifically, during the forming process, the second driving cylinder 450 extends, causing the rotating frame 410 to rotate along with the bending of the anti-collision beam 300; after forming, the upper mold 100 is lifted, and the first driving cylinder 440 extends to withdraw the insert 430. After the anti-collision beam 300 is removed, the second driving cylinder 450 contracts and drives the rotating frame 410 to reset, and then the next anti-collision beam 300 can be placed for press bending forming.

[0059] Furthermore, the rotating frame 410 further has an extension portion 411 , and the lower surface of the end portion of the anti-collision beam 300 is connected to the upper surface of the extension portion 411 ;

[0060] A limiting block 210 is further provided on the lower die 200 . When the press-bending die is in a closed state, the limiting block 210 abuts against the lower surface of the extending portion 411 .

[0061] This application does not set up conventional clamping arms to clamp the two ends of the anti-collision beam 300, that is, the anti-collision beam 300 is directly placed on the extension part 411 and the insert block 430 is extended into its end to achieve clamping, which is convenient for manual operation and automatic forming.

[0062] At the same time, a limit block 210 is provided. When the limit block 210 abuts against the extension portion 411 , the anti-collision beam 300 is bent to a preset arc. At this time, the bending can be completed by lifting the upper mold 100 .

[0063] Furthermore, the lower surface of the extension portion 411 is recessed upward to form a first limiting curved surface 412 , and the upper surface of the limiting block 210 is convex upward to form a second limiting curved surface 211 . The first limiting curved surface 412 can at least partially fit with the second limiting curved surface 211 .

[0064] It is understandable that, since the rotating frame 410 rotates relative to the lower mold 200 during the molding process of the anti-collision beam 300 , the first limiting curved surface 412 does not move vertically toward the second limiting curved surface 211 during the molding process.

[0065] Therefore, the first limiting surface 412 and the second limiting surface 211 are set as concave or convex surfaces, so that the first limiting surface 412 can also fit with the second limiting surface 211 after rotating to a certain angle, so as to increase the contact area between the two limiting surfaces and prevent the contact area from being too small to cause damage to the extension part 411 or the limiting block 210.

[0066] Furthermore, an adjustment seat 220 is fixedly connected to the lower mold 200, and a locking hole 221 is provided on the adjustment seat 220;

[0067] The limiting block 210 is further provided with a waist-shaped through hole 212 along the length direction of the anti-collision beam 300. The waist-shaped through hole 212 is bolted to the locking hole 221, and the bolt can slide in the waist-shaped through hole 212.

[0068] A limiting seat 230 is further provided on one side of the adjustment seat 220 . A limiting column 240 is threadedly connected to the limiting seat 230 . One end of the limiting column 240 passes through the limiting seat 230 and abuts against the side wall of the limiting block 210 .

[0069] Specifically, the limit block 210 is moved, and the bolt slides in the waist-shaped through hole 212 during the adjustment process. After the bolt is adjusted to the predetermined position, the position of the limit block 210 on the adjustment seat 220 can be adjusted.

[0070] It is understood that by adjusting the position of the stop block 210, the timing of the contact between the stop block 210 and the extension portion 411 can be delayed or advanced, thereby adjusting the rotation angle of the rotating frame 410. Due to the curved configuration of the first stop surface 412 and the second stop surface 211, even after adjusting the position of the stop block 210, the first stop surface 412 and the second stop surface 211 can still ensure partial contact, thereby increasing the contact area between the two stop surfaces.

[0071] Furthermore, the upper mold 100 includes a plurality of sliders that can be raised and lowered. By raising and lowering the plurality of sliders, the curvature of the molding surface formed by the lower surfaces of the plurality of sliders can be adjusted.

[0072] In summary, the present application can combine the curvature adjustment of the molding surface of the upper mold 100 and the position of the limit block 210 on the adjustment seat 220 to adjust the overall molding curvature of the anti-collision beam 300 to meet different usage requirements and realize the adjustment of the molding curvature of the mold.

[0073] At the same time, a limiting seat 230 and a limiting post 240 are provided on the outer side of the limiting block 210. One end of the limiting post 240 passes through the limiting seat 230 and abuts against the limiting block 210. When the rotating frame 410 rotates until the extension portion 411 abuts against the limiting block 210, the force applied by the extension portion 411 to the limiting block 210 can be decomposed into a horizontal force component in the direction of the limiting post 240. At this time, the limiting post 240 applies a reverse force to the limiting block 210 to offset the horizontal force component of the extension portion 411 on the limiting block 210, thereby preventing the limiting block 210 from being displaced during the forming process due to excessive force applied by the extension portion 411 on the limiting block 210, thereby causing the forming curvature to be greater than the preset curvature. Among them, since the limit column 240 is threadedly connected to the limit seat 230, the length of the limit column 240 extending from the limit seat 230 can be adjusted by rotating the limit column 240; when the limit block 210 is adjusted to a different position, the limit column 240 can be rotated so that it can be tightly pressed against the limit block 210.

[0074] Furthermore, a skirt is extended outwards from both sides of the lower surface of the anti-collision beam 300;

[0075] The extending portion 411 is further provided with a position detection block 413 , and the position detection block 413 can abut against the skirt.

[0076] A position detection block 413 is provided to abut against the skirt on the anti-collision beam 300 to determine whether the anti-collision beam 300 is in place.

[0077] Specifically, when the anti-collision beam 300 is installed at the predetermined position of the rotating frame 410, the in-place detection block 413 abuts against the skirt; if the skirt does not abut against the in-place detection block 413, the surface anti-collision beam 300 is not placed at the predetermined position.

[0078] During operation, the anti-collision beam 300 can be placed on the rotating frame 410, and a lateral force is applied to the anti-collision beam 300 so that the skirt is against the in-place detection block 413, so that it can be in place, which is convenient for operation.

[0079] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0080] In addition, in the present invention, descriptions such as "first," "second," and "one" are for descriptive purposes only and should not be understood to indicate or imply their relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0081] In the present invention, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0082] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A bending forming die for an anti-collision beam, comprising an upper die and a lower die, wherein the height of the forming surface of the upper die gradually increases from the middle to the two ends, characterized in that: Also includes: A clamping assembly, comprising two clamping units, the two clamping units being respectively arranged at both ends of the anti-collision beam, the clamping units comprising: a rotating frame rotatably connected to the lower mold, and the rotating frame clamping one end of the anti-collision beam; When the press-bending forming mold is in a closed state, the upper surface of the anti-collision beam is in contact with the forming surface of the upper mold, and the lower surface of the anti-collision beam is separated from the lower mold; The rotating frame further has an extension portion, and the lower surface of the end portion of the anti-collision beam is connected to the upper surface of the extension portion; A limit block is further provided on the lower die, and when the press-bending die is in a closed state, the limit block abuts against the lower surface of the extension portion; The lower surface of the extension portion is concave upward to form a first limiting curved surface, and the upper surface of the limiting block is convex upward to form a second limiting curved surface, and the first limiting curved surface and the second limiting curved surface are at least partially in contact with each other; An adjustment seat is fixedly connected to the lower die, and a locking hole is provided on the adjustment seat; The limit block is further provided with a waist-shaped through hole along the length direction of the anti-collision beam, the waist-shaped through hole is connected to the locking hole bolt, and the bolt can slide in the waist-shaped through hole; A limiting seat is further provided on one side of the adjustment seat, and a limiting column is threadedly connected to the limiting seat. One end of the limiting column passes through the limiting seat and abuts against the side wall of the limiting block.

2. The press-bending forming die for an anti-collision beam according to claim 1, characterized in that: Both ends of the anti-collision beam are hollow; The rotating frame is further provided with an inserting core unit, which comprises an inserting block slidably connected to the rotating frame, and the inserting block slides relative to the rotating frame to extend into or out of the end of the anti-collision beam.

3. The press-bending forming die for an anti-collision beam according to claim 2, characterized in that: The clamping unit further includes a fixed frame, which is fixedly connected to the lower mold, and the rotating frame is rotatably arranged on the fixed frame; A sliding groove is provided on the rotating frame along the length direction of the anti-collision beam, and the inserting block is arranged in the sliding groove and can slide along the length direction of the sliding groove.

4. The press-bending forming die for an anti-collision beam according to claim 2, characterized in that: The core inserting unit further includes a first driving cylinder, one end of which is connected to the rotating frame, and the other end of which is connected to the inserting block.

5. The press-bending forming die for an anti-collision beam according to claim 3, characterized in that: The rotating frame has a first rotating part and a second rotating part, and the first rotating part is hinged to the fixed frame; The clamping unit further includes a second driving cylinder, one end of which is hinged to the second rotating part, and the other end of which is hinged to the lower mold.

6. The press-bending forming die for an anti-collision beam according to claim 1, characterized in that: A skirt is extended outwards from both sides of the lower surface of the anti-collision beam; The extending portion is further provided with an in-place detection block, and the in-place detection block can abut against the skirt.

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