Adjustable pre-turning mechanism for edge covering die

Abstract

The utility model discloses an adjustable pre-turning mechanism for an edge covering die, which belongs to the technical field of stamping dies and comprises a bent knife fixing seat, an adjustable knife head is mounted on the bent knife fixing seat, one end of the adjustable knife head is connected with the bent knife fixing seat, an arc-shaped groove is arranged at the other end of the adjustable knife head, and the adjustable knife head is connected with the arc-shaped groove. A fan-shaped rolling shaft is rotationally installed on the arc-shaped groove, a plurality of angle adjusting grooves are formed in the two ends of the fan-shaped rolling shaft, positioning keys and a plurality of positioning grooves capable of being in butt joint with the angle adjusting grooves are formed in the two sides of the adjustable tool bit, and one end of each positioning key is installed on the corresponding positioning groove while the other end of each positioning key is installed on the corresponding angle adjusting groove. One end of the positioning key can extend into the positioning groove, the other end of the positioning key can extend into the angle adjusting groove which is in butt joint with the positioning key, the positioning key can abut against the positioning groove and the angle adjusting groove, the die development period can be shortened, and the debugging period and cost can be saved.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping dies, in particular to an adjustable pre-turning mechanism for an edge wrapping die. Background Art

[0002] The hemming die generally includes the pressing die for the engine hood, tailgate, front door, rear door, sliding door and other body panels. In the early stage of production, the adjustment of the pre-bending angle of the pre-bending knife is a very critical step. The unreasonable pre-bending contact sequence and poor pre-bending angle during the hemming of the panel may cause the product to have uneven edges, crushing and deformation.

[0003] Since the initial contact position and angle of the pre-bending blade with the flange are variable, the optimal position and angle are generally found through CAE simulation in the early stage, and mainly through on-site physical debugging in the later stage.

[0004] In the existing technology, the pre-bending knife design is usually not adjustable, and the fitter needs to repeatedly weld and adjust it on site to ensure that the inner and outer panels fit together during edging and that the workpiece has no pressing surface defects. The debugging cost of this pre-bending knife is high, the cycle is long, and the fitter's level is required to be high.

[0005] In view of the above problems existing in the prior art, the present invention designs and manufactures an adjustable pre-turning mechanism for an edge wrapping mold to overcome the above defects. Utility Model Content

[0006] In order to solve the problems existing in the prior art, the utility model provides an adjustable pre-turning mechanism for an edge wrapping mold, which can shorten the mold development cycle and save debugging cycle and cost.

[0007] In order to achieve the above-mentioned object, the technical solution adopted by the present invention is as follows: an adjustable pre-flipping mechanism for an edge wrapping mold, comprising a scimitar fixing seat, an adjustable cutter head mounted on the scimitar fixing seat, one end of the adjustable cutter head being connected to the scimitar fixing seat, the other end of the adjustable cutter head being provided with an arcuate groove, a fan-shaped roller being rotatably mounted on the arcuate groove;

[0008] Both ends of the fan-shaped roller are provided with a plurality of angle adjustment grooves, and both sides of the adjustable cutter head are provided with positioning keys and a plurality of positioning grooves that can be docked with the angle adjustment grooves. While one end of the positioning key is installed on the positioning groove, the other end of the positioning key can also extend into one of the angle adjustment grooves docked with the positioning key, and the positioning key can be tightly against the positioning groove and the angle adjustment groove.

[0009] Preferably, the angle adjustment slot is triangular in shape, and the end of the positioning key away from the positioning slot is a contoured end capable of cooperating with the angle adjustment slot.

[0010] Preferably, the intersection of the extension lines of the positioning groove and the angle adjustment groove are both located on the axis of the arc groove.

[0011] Preferably, the angle between two adjacent positioning grooves is greater than the angle between two adjacent angle adjustment grooves.

[0012] Preferably, the positioning key and the positioning groove are both provided with a first threaded hole, a fastening bolt matched with the first threaded hole is installed on the positioning key, and the positioning key is detachably mounted on the positioning groove through the fastening bolt.

[0013] Preferably, the adjustable cutter head is provided with a plurality of countersunk holes, the fan-shaped roller is provided with second threaded holes corresponding one-to-one to the countersunk holes, and a locking bolt is installed on the countersunk hole, and the lower end of the locking bolt can cooperate with the second threaded hole.

[0014] Preferably, the end of the adjustable blade head away from the scimitar fixing seat is a folded end in the shape of a quadrangular pyramid, and the arc groove is located on the lower end surface of the folded end.

[0015] Preferably, the side of the fan-shaped roller away from the scimitar fixing seat is a pre-flipped surface that can contact the plate, and the width of the pre-flipped surface is greater than the width of the edge of the workpiece.

[0016] Preferably, the adjustable blade head is detachably mounted on the scimitar fixing seat.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The utility model adjusts the inclination angle of the contact surface between the adjustable cutter head and the plate by rotating the fan-shaped roller on the adjustable cutter head, thereby realizing the pre-adjustment of the pre-bent knife. After the adjustment is completed, only simple on-site trimming by the fitter is required to complete the debugging, which reduces the labor intensity of the fitter, reduces the debugging cost, and shortens the debugging cycle.

[0019] 2. The fan-shaped roller of the utility model is detachably mounted on the adjustable cutter head through a locking bolt and a positioning key, which is convenient for disassembly and replacement at any time, thereby reducing the debugging cost and the later maintenance cost of the device.

[0020] 3. The utility model sets the angle adjustment groove into a triangular shape and sets a matching profiling end on the positioning key, which can limit the rolling of the fan-shaped roller on the arc surface and also make the fan-shaped roller stuck on the positioning key to avoid falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is an isometric view of an adjustable pre-flipping mechanism for a hemming die according to the present invention;

[0022] Figure 2This is a side view of an adjustable pre-flipping mechanism for an edge wrapping die according to the present invention;

[0023] Figure 3 The utility model is a cross-sectional view of an adjustable pre-turning mechanism for an edge wrapping die.

[0024] In the figure: 1-scimitar fixing seat, 2-fan-shaped roller, 3-angle adjustment slot, 4-positioning key, 5-positioning slot, 6-fastening bolt, 7-adjustable blade head, 8-locking bolt, 9-countersunk hole, 10-folded end, 11-pre-flip surface, 12-second threaded hole, 13-arc-shaped slot, 14-first threaded hole. DETAILED DESCRIPTION

[0025] In order to facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0026] like Figure 1-3 The adjustable pre-flip mechanism for a hemming die shown includes a curved blade holder 1, on which is mounted an adjustable blade head 7. The adjustable blade head 7 is detachably mounted on the curved blade holder 1 for easy removal and replacement. One end of the adjustable blade head 7 is connected to the curved blade holder 1, and the other end of the adjustable blade head 7 is provided with an arcuate groove 13, on which a fan-shaped roller 2 is rotatably mounted.

[0027] The utility model has a plurality of angle adjustment slots 3 at both ends of the sector roller 2. The adjustable cutter head 7 is provided with a positioning key 4 and a plurality of positioning slots 5 that can mate with the angle adjustment slots 3. The intersection of the extended lines of the positioning slots 5 and the angle adjustment slots 3 is located on the axis of the arc groove 13. This ensures that the angle adjustment slots 3 and the positioning slots 5 can mate successfully after the sector roller 2 is rotated and shifted. The installed positioning key 4 can be successfully stuck on the sector roller 2 and the adjustable cutter head 7.

[0028] Specifically, the angle of inclination of the contact surface between the adjustable cutter head 7 and the plate is adjusted by rotating the fan-shaped roller 2 on the adjustable cutter head 7, thus achieving pre-adjustment of the bevel of the pre-bent blade. After adjustment, only simple on-site trimming by the fitter is required to complete the commissioning, which reduces the fitter's labor intensity, reduces commissioning costs, and shortens the commissioning cycle.

[0029] The positioning key 4 and the positioning slot 5 of the present invention are both provided with a first threaded hole 14 , and a fastening bolt 6 that matches the first threaded hole 14 is installed on the positioning key 4 . The positioning key 4 is detachably mounted on the positioning slot 5 through the fastening bolt 6 .

[0030] Specifically, after the sector roller 2 is rotated to the appropriate angle, the aligning positioning groove 5 and angle adjustment groove 3 are located. A positioning key 4, equipped with a fastening bolt 6, is installed in the first threaded hole 14 of this positioning groove 5. The fastening bolt 6 is then tightened to simultaneously tighten the positioning keys 4 at both ends of the sector roller 2. The positioning keys 4 press against the positioning groove 5 and angle adjustment groove 3, locking the sector roller 2 in place. This prevents the sector roller 2 from rotating and disengaging from the arcuate groove 13.

[0031] Specifically, while one end of the positioning key 4 is installed on the positioning slot 5, the other end of the positioning key 4 can also extend into an angle adjustment slot 3 connected to the positioning key 4. The angle adjustment slot 3 is triangular, and the end of the positioning key 4 away from the positioning slot 5 is a contoured end that can cooperate with the angle adjustment slot 3. The side wall of the angle adjustment slot 3 rests on the hypotenuse of the contoured end, which can further prevent the fan-shaped roller 2 from moving downward and prevent the fan-shaped roller 2 from falling off the adjustable cutter head 7 during operation.

[0032] Because each positioning groove 5 is provided with a first threaded hole 14, a positioning key 4 can be installed in each position, and the angle between two adjacent positioning grooves 5 is greater than the angle between two adjacent angle adjustment grooves 3. This increases the chances of the positioning grooves 5 and the angle adjustment grooves 3 being able to mate, and also improves the rotational angle and adjustment accuracy of the sector roller 2. This allows for more precise adjustment of the inclination angle of the contact surface between the sector roller 2 and the panel during early debugging, reducing the difficulty of debugging for fitters and improving debugging efficiency.

[0033] The utility model has several countersunk holes 9 on the adjustable cutter head 7, and the fan-shaped roller 2 has second threaded holes 12 corresponding to the countersunk holes 9 one by one. The countersunk holes 9 are installed with locking bolts 8, and the lower ends of the locking bolts 8 can cooperate with the second threaded holes 12.

[0034] Specifically, after the fan-shaped roller 2 is rotated to a suitable position and the positioning key 4 is installed to lock its rotation angle, a hole is drilled downward along the countersunk hole 9 to drill a second threaded hole 12 on the fan-shaped roller 2, and the locking bolt 8 is installed and tightened to assist in fixing the fan-shaped roller 2. While limiting the rotation of the fan-shaped roller 2, it can also tighten it to prevent it from falling off.

[0035] The fan-shaped roller 2 is detachably mounted on the adjustable cutter head 7 via a locking bolt 8 and a positioning key 4, and can be easily disassembled and replaced at any time, thereby reducing the debugging cost and the subsequent maintenance cost of the device.

[0036] The end of the adjustable blade head 7 in the present invention, away from the scimitar fixing seat 1, is a quadrangular pyramid-shaped folding end 10, with an arcuate groove 13 located on the lower end surface of the folding end 10. The side of the fan-shaped roller 2, away from the scimitar fixing seat, is a pre-folding surface 11 capable of contacting the plate. The width of the pre-folding surface 11 is greater than the width of the edge of the workpiece, so that the entire plate contacts the pre-folding surface 11 during pre-bending and receives uniform force, avoiding the problem of unqualified workpieces due to uneven force.

[0037] It should be understood that these embodiments are intended only to illustrate the present invention and are not intended to limit the scope of protection of the present invention. In addition, it should be understood that after reading the technical content of the present invention, those skilled in the art may make various changes, modifications and / or variations to the present invention, and all such equivalent forms also fall within the scope of protection defined by the appended claims of this application.

Claims

1. An adjustable pre-turning mechanism for an edge wrapping die, characterized in that: The invention comprises a scimitar fixing seat (1), an adjustable cutter head (7) is mounted on the scimitar fixing seat (1), one end of the adjustable cutter head (7) is connected to the scimitar fixing seat (1), and the other end of the adjustable cutter head (7) is provided with an arc groove (13), and a fan-shaped roller (2) is rotatably mounted on the arc groove (13); Both ends of the fan-shaped roller (2) are provided with a plurality of angle adjustment slots (3), and both sides of the adjustable cutter head (7) are provided with positioning keys (4) and a plurality of positioning slots (5) that can be docked with the angle adjustment slots (3). One end of the positioning key (4) is mounted on the positioning slot (5), and the other end of the positioning key (4) can also extend into one of the angle adjustment slots (3) docked with the positioning key (4), and the positioning key (4) can be tightly pressed against the positioning slot (5) and the angle adjustment slot (3).

2. The adjustable pre-turning mechanism for an edge wrapping mold according to claim 1, characterized in that: The angle adjustment slot (3) is shaped like a triangle, and the end of the positioning key (4) away from the positioning slot (5) is a contoured end capable of cooperating with the angle adjustment slot (3).

3. The adjustable pre-turning mechanism for an edge wrapping die according to claim 1, characterized in that: The intersection points of the extension lines of the positioning groove (5) and the angle adjustment groove (3) are both located on the axis of the arc groove (13).

4. The adjustable pre-turning mechanism for an edge wrapping die according to claim 1, characterized in that: The included angle between two adjacent positioning grooves (5) is greater than the included angle between two adjacent angle adjustment grooves (3).

5. The adjustable pre-turning mechanism for an edge wrapping die according to claim 1, characterized in that: The positioning key (4) and the positioning groove (5) are both provided with a first threaded hole (14), a fastening bolt (6) matched with the first threaded hole (14) is installed on the positioning key (4), and the positioning key (4) is detachably mounted on the positioning groove (5) through the fastening bolt (6).

6. The adjustable pre-turning mechanism for an edge wrapping die according to claim 1, characterized in that: The adjustable cutter head (7) is provided with a plurality of countersunk holes (9), the fan-shaped roller (2) is provided with second threaded holes (12) corresponding one-to-one to the countersunk holes (9), and a locking bolt (8) is installed on the countersunk hole (9), and the lower end of the locking bolt (8) can cooperate with the second threaded hole (12).

7. The adjustable pre-turning mechanism for an edge wrapping die according to claim 1, characterized in that: The end of the adjustable blade head (7) away from the scimitar fixing seat (1) is a quadrangular pyramid-shaped folded end (10), and the arc groove (13) is located on the lower end surface of the folded end (10).

8. The adjustable pre-turning mechanism for an edge wrapping die according to claim 1, characterized in that: The side of the fan-shaped roller (2) away from the scimitar fixing seat (1) is a pre-turned surface (11) capable of contacting the plate, and the width of the pre-turned surface (11) is greater than the width of the edge of the workpiece.

9. The adjustable pre-turning mechanism for an edge wrapping die according to claim 1, characterized in that: The adjustable blade head (7) is detachably mounted on the scimitar fixing seat (1).

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