Small-batch vehicle model inclined wedge flanging die

Abstract

The application discloses a small-batch vehicle model inclined wedge flanging die, which comprises a lower die, an upper die inclined wedge, a pressing plate, a turning-inlay block and a pull rod mechanism, wherein the pull rod mechanism is arranged in the lower die, and the pneumatic pull rod mechanism reciprocates to realize the positioning and return of the large die inclined wedge, drive the inclined wedge symbol surface of the lower die to reach the working position and retreat to the non-working position, realize the'slimming' of the die, and realize the die weight reduction. With the die weight reduction, the hoisting and placing of the inclined wedge during the die maintenance and disassembly process become relatively easy, the manufacturing of the small-batch vehicle roof die inclined flanging structure is improved, the manufacturing and debugging difficulty is reduced, and the operation difficulty and labor intensity of the bench worker are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile parts, in particular to a small-batch vehicle model inclined wedge flanging die. BACKGROUND

[0002] The lap joint position of the outer panel of the roof of the automobile and the side wall is mostly negative angle flanging, and the common die adopts a large inclined wedge structure, the large inclined wedge structure includes a driving structure and a back-off structure, the size and weight of the large inclined wedge structure are large, the inclined flanging action is completed by a large cylinder driving the lower die inclined wedge driving mechanism, and the inclined wedge is driven back to the non-working position by a plurality of backstroke cylinders. Because the lower die driving mechanism and the inclined wedge itself are heavy and have high precision requirements, the corresponding die main body structure needs to increase the die reinforcing structure that can be realized at necessary positions while ensuring the air gap space to meet the operation of the inclined wedge, especially for small-batch vehicle models, the stroke frequency is low, the cost of each part is higher, a plurality of backstroke cylinders and related air path arrangements increase the design difficulty, and the cost of parts and pipelines is also increased, and there are problems of high overall structure cost, high debugging precision requirement, inconvenient maintenance and disassembly, etc. At the same time, after the small-batch production is completed, most of the inclined flanging driving die structure cannot be disassembled and reused, and is finally scrapped. SUMMARY

[0003] The present application conceives a small-batch vehicle model inclined wedge flanging die to improve the manufacturing of the inclined flanging structure of the roof die of the small-batch vehicle model, and reduce the manufacturing and debugging difficulty by changing the inclined wedge driving mechanism of the lower die into a pneumatic pull rod structure to drive the inclined wedge profile of the lower die to reach the working position and retreat to the non-working position.

[0004] The technical scheme adopted in the present application is as follows: a small-batch vehicle model inclined wedge flanging die, comprising a lower die 1, an upper die inclined wedge 2, a pressing plate 3, a trimming insert 4, characterized in that it further comprises a pull rod mechanism 5, the pull rod mechanism 5 is arranged in the lower die 1, the pull rod mechanism 5 comprises a cylinder 5.1, a connecting nut 5.2, a pull rod connecting head 5.3, a limiting cover plate 5.4, a key 5.5, a pin shaft 5.6, a pull rod 5.7, a connecting rod connecting head 5.8, a connecting rod 5.9 and a stroke limiting block 5.10, the cylinder 5.1 is fixedly connected with the lower die 1, one end of the pull rod 5.7 is embeddedly connected with the pull rod connecting head 5.3, the pull rod connecting head 5.3 is detachably connected with the piston rod of the cylinder 5.1, a stroke limiting block 5.10 is arranged on the other end of the pull rod 5.7, a group of connecting rod connecting heads 5.8 are arranged on the upper surface of the pull rod 5.7, the pull rod 5.7 is threadedly connected with the connecting rod connecting head 5.8, connecting rods 5.9 are arranged on the left and right sides of the connecting rod connecting head 5.8 respectively, the connecting rod connecting head 5.8 is hingedly connected with the connecting rod 5.9 through the pin shaft 5.6, the connecting rod 5.9 is hingedly connected with the trimming insert 4 through the pin shaft 5.6, a limiting cover plate 5.4 is arranged on the upper surface of the pull rod 5.7, the limiting cover plate 5.4 is threadedly connected with the lower die 1, keys 5.5 are arranged on the two sides of the pull rod 5.7 respectively, and the keys 5.5 are threadedly connected with the lower die 1.

[0005] Further, a threaded hole is arranged on the pull rod connecting head 5.3, the threaded hole on the pull rod connecting head 5.3 is threadedly connected with the piston rod of the cylinder 5.1, and a connecting nut 5.2 is arranged on the piston rod of the cylinder 5.1.

[0006] Further, the pull rod 5.7 is connected with the pull rod connecting head 5.3 in an interference fit.

[0007] Further, a protective cover is arranged around the cylinder 5.1.

[0008] Further, the pull rod 5.7 is made of 45#.

[0009] Further, the pin shaft 5.6, the pull rod 5.7, the connecting rod connecting head 5.8 and the connecting rod 5.9 can be manufactured as standard parts.

[0010] Further, a snap spring or a snap pin is arranged in the upper hole of the pin shaft 5.6.

[0011] The present application has the following beneficial effects:

[0012] 1. A small-batch vehicle model inclined wedge flanging die, wherein the inclined wedge driving mechanism of the lower die is replaced by a pneumatic pull rod structure, a single cylinder drives the pull rod to reciprocate, realizing the positioning and return of the inclined wedge of the large die, driving the inclined wedge symbol surface of the lower die to reach the working position and retreat to the non-working position, without considering the arrangement of the large-size lower die inclined wedge driving mechanism, the arrangement of the die body reinforcement structure, the return cylinder and pipeline, the design difficulty is greatly reduced, the die weight is reduced, and the hoisting and placing of the inclined wedge during the maintenance and disassembly process of the die becomes relatively easy, improving the manufacturability of the small-batch vehicle roof die inclined flanging structure, reducing the manufacturing and debugging difficulty, and reducing the operation difficulty and labor intensity of the bench worker.

[0013] 2. A small-batch vehicle model inclined wedge flanging die, wherein the originally cumbersome driving structure and complex die cylinder pipeline and reinforcement structure are all cancelled, and are replaced by a pull rod structure, realizing the "slimming" of the die, improving the originally scrapped parts from the structure, the connecting rod connecting head, the connecting rod, the pin shaft and other components can be used as standard parts, and can be directly borrowed during the design and machining process, or reused in subsequent similar structures after disassembly and inspection accuracy meets the requirements. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a three-dimensional view of a small-batch vehicle model inclined wedge flanging die;

[0015] Figure 2 is a three-dimensional view of a small-batch vehicle model inclined wedge flanging die after removing component 3;

[0016] Figure 3 is a three-dimensional view of a small-batch vehicle model inclined wedge flanging die after removing component 2 and component 3;

[0017] Figure 4 is a three-dimensional view of a small-batch vehicle model inclined wedge flanging die after removing component 1, component 2 and component 3;

[0018] Figure 5 is Figure 4 a front view of component 5 in

[0019] Figure 6 is Figure 5 a three-dimensional view of component 5.3 in

[0020] Figure 7 is Figure 5 a three-dimensional view of component 5.6 in

[0021] Figure 8 is Figure 5 a three-dimensional view of component 5.7 in

[0022] Figure 9 is Figure 5 a three-dimensional view of component 5.8 in

[0023] Figure 10 is Figure 5 a three-dimensional view of the middle piece 5.9;

[0024] In the figure: 1. lower die, 2. upper die wedge, 3. pressing plate, 4. finishing insert, 5. pull rod mechanism, 5.1. air cylinder, 5.2. connecting nut, 5.3. pull rod connector, 5.4. limit cover plate, 5.5. key, 5.6. pin shaft, 5.7. pull rod, 5.8. connecting rod connector, 5.9. connecting rod, 5.10. stroke limit block, 5.11. non-working position, 5.12. working position. DETAILED DESCRIPTION

[0025] The present application will be further described in conjunction with the accompanying drawings and specific embodiments, in order to make the purpose, technical solutions and advantages of the embodiments more clear, the technical solutions in the embodiments will be clearly and completely described with the accompanying drawings of the embodiments of the present application, the specific embodiments described here are only used to explain the present application, and are not used to limit the scope of the present application. Figures 1-10 DETAILED DESCRIPTION

[0026] As shown in the accompanying drawings, a small-batch vehicle model wedge flanging die comprises a lower die 1, an upper die wedge 2, a pressing plate 3, a finishing insert 4 and a pull rod mechanism 5, wherein the pull rod mechanism 5 is arranged in the lower die 1. Figures 1-4 As shown in the accompanying drawings, the pull rod mechanism 5 comprises an air cylinder 5.1, a connecting nut 5.2, a pull rod connector 5.3, a limit cover plate 5.4, a key 5.5, a pin shaft 5.6, a pull rod 5.7, a connecting rod connector 5.8, a connecting rod 5.9 and a stroke limit block 5.10, the air cylinder 5.1 is fixedly connected with the lower die 1, one end of the pull rod 5.7 is embeddedly connected with the pull rod connector 5.3, the pull rod connector 5.3 is detachably connected with the piston rod of the air cylinder 5.1, the stroke limit block 5.10 is arranged on the other end of the pull rod 5.7, a group of connecting rod connectors 5.8 are arranged on the upper surface of the pull rod 5.7, the pull rod 5.7 is threadedly connected with the connecting rod connector 5.8, the connecting rod 5.9 is arranged on the left and right sides of the connecting rod connector 5.8 respectively, the connecting rod connector 5.8 is hingedly connected with the connecting rod 5.9 through the pin shaft 5.6, the connecting rod 5.9 is hingedly connected with the finishing insert 4 through the pin shaft 5.6, the limit cover plate 5.4 is arranged on the upper surface of the pull rod 5.7, the limit cover plate 5.4 is threadedly connected with the lower die 1, the key 5.5 is arranged on the two side surfaces of the pull rod 5.7 respectively, and the key 5.5 is threadedly connected with the lower die 1. Figure 5 As shown in the accompanying drawings, the pull rod 5.7 is made of 45#, and the pin shaft 5.6, the pull rod 5.7, the connecting rod connector 5.8 and the connecting rod 5.9 can be manufactured as standard parts. Figures 6-10

[0027] ​The power source of the small-batch vehicle model inclined wedge flanging die is an external cylinder 5.1, a protection is arranged around the cylinder 5.1 to avoid the cylinder from being damaged by collision, the cylinder 5.1 is connected with a pull rod connecting head 5.3 through a connecting nut 5.2, and the pull rod 5.7 is driven to work through the reciprocating action of the cylinder 5.1; the other side of the pull rod connecting head 5.3 is embeddedly connected with the pull rod 5.7, the lap joint is achieved through interference fit, and the stability of the connection is achieved; the length of the pull rod 5.7 meets the working stroke requirement of the inclined wedge, the top end is matched with a stroke limiting block 5.10, the bottom is processed into a guide sliding surface, the side surface is partially finished, is used as a limiting key 5.5 working matching surface, the upper part is punched for fixing the connecting head 5.3, the limiting cover plate 5.4 on the upper part of the pull rod 5.7 prevents the pull rod 5.7 from being pulled out during movement; one end of the connecting head 5.3 is fixed to the connecting rod 5.7 through screw connection and pin positioning, and the other end is connected with the connecting rod 5.7 through a pin shaft 5.6; the connecting head 5.3 and the pin shaft 5.6 are interference fit, so that the connection is stable, and the upper part of the pin shaft 5.6 is provided with a hole for mounting a spring / locking pin for preventing the pin shaft 5.6 from being pulled out; one end of the connecting rod 5.9 is connected with the connecting head 5.3, and the other end of the connecting rod 5.9 is also connected with the inclined wedge rear end through the pin shaft 5.6; the connecting rod 5.9 and the pin shaft 5.6 are clearance fit, so that the connecting rod 5.9 can rotate around the pin shaft 5.6.

[0028] The working process of the small-batch vehicle model inclined wedge flanging die is as follows:

[0029] In the initial state, the cylinder 5.1 is contracted, and the inclined wedge is in a non-working position 5.11.

[0030] The cylinder 5.1 is filled with air to drive the pull rod 5.7 to slide forward, the pull rod 5.7 drives the connecting rod 5.9, the connecting rod drives the inclined wedge to slide forward to a working position 5.12, at the same time, the pull rod 5.7 reaches the stroke limit and is stopped by the stroke limiting block, the connecting rod 5.9 is at a 90° angle with the pull rod 5.7, and the two connecting rods 5.7 are at a 180° angle.

[0031] The upper die is pressed down to drive the upper die inclined wedge to complete the inclined flanging / reshaping action, during the forming process, the lower die inclined wedge is always in the working position 5.12, and the forming forces on the opposite sides are offset by the connecting rod mechanism, the formed part is wrapped on the inclined wedge punch due to the negative angle flanging, and then the upper die returns;

[0032] After the work is completed, the cylinder 5.1 is filled with air in the reverse direction, the pull rod 5.7 slides towards the cylinder 5.1, the pull rod 5.7 drives the connecting rod 5.9, and the connecting rod 5.9 pulls the lower die inclined wedge back to the non-working position 5.11, at this time, the part is separated from the inclined wedge punch and can be taken out, and the whole working cycle is completed.

[0033] In the present application, the connecting rod, the connecting rod connecting head, the pin shaft and the pull rod connecting head can be made into standard parts, in new design, the matching size can be directly made, the structure can be directly called to facilitate design and manufacturing.

[0034] The above merely describes the preferred modes of the present application, and it should be noted that those skilled in the art can make several improvements and refinements without departing from the principles of the present application, and these improvements and refinements should also be considered as falling within the scope of the present application.

Claims

1. A small-lot vehicle model swan neck flanging die comprising: The lower die (1), the upper die wedge (2), the pressure plate (3), and the turning-inlay block (4) are characterized in that the device further comprises a pull rod mechanism (5) arranged in the lower die (1), wherein the pull rod mechanism (5) comprises a gas cylinder (5.1), a connecting nut (5.2), a pull rod connector (5.3), a limiting cover plate (5.4), a key (5.5), a pin shaft (5.6), a pull rod (5.7), a connecting rod connector (5.8), a connecting rod (5.9), and a stroke limiting block (5.10), the gas cylinder (5.1) is fixedly connected with the lower die (1), one end of the pull rod (5.7) is embeddedly connected with the pull rod connector (5.3), the pull rod connector (5.3) is detachably connected with the piston rod of the gas cylinder (5.1), the stroke limiting block (5.10) is arranged on the other end of the pull rod (5.7), a group of connecting rod connectors (5.8) are arranged on the upper surface of the pull rod (5.7), the pull rod (5.7) is threadedly connected with the connecting rod connector (5.8), the connecting rod (5.9) is arranged on the left and right sides of the connecting rod connector (5.8), the connecting rod connector (5.8) is hingedly connected with the connecting rod (5.9) through the pin shaft (5.6), the connecting rod (5.9) is hingedly connected with the turning-inlay block (4) through the pin shaft (5.6), the limiting cover plate (5.4) is arranged on the upper surface of the pull rod (5.7), the limiting cover plate (5.4) is threadedly connected with the lower die (1), and the keys (5.5) are arranged on the two sides of the pull rod (5.7).

2. A small-lot vehicle model drawbead die according to claim 1, characterized in that A threaded hole is arranged on the pull rod connector (5.3), and the threaded hole of the pull rod connector (5.3) is threadedly connected with the piston rod of the gas cylinder (5.1).

3. The small-lot vehicle model drawbead die according to claim 1, characterized in that: The pull rod (5.7) is connected with the pull rod connector (5.3) in an interference fit.

4. The small-lot vehicle model drawbead die according to claim 1, characterized in that: A protective cover is arranged around the gas cylinder (5.1).

5. The small-lot vehicle model drawbead die according to claim 1, characterized in that: The pull rod (5.7) is made of 45#.

6. A small-lot vehicle model drawbead die according to claim 1, characterized in that: The pin shaft (5.6), the pull rod (5.7), the connecting rod connector (5.8), and the connecting rod (5.9) can be manufactured as standard parts.

7. A small-lot vehicle model drawbead die according to claim 1, characterized in that: A spring or a pin is arranged on the upper part of the pin shaft (5.6).

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