Full-circumference trimming and flanging die for upper part of automobile longitudinal beam

Abstract

The utility model provides a full-circumference trimming and flanging die for the upper portion of an automobile longitudinal beam. The full-circumference trimming and flanging die comprises an upper die base and a lower die base. The left material pressing plate and the right material pressing plate are respectively arranged in the left upper die cavity and the right upper die cavity of the upper die base and are connected with the upper die base through elastic mechanisms; the plurality of all-round trimming cutter blocks are arranged along the edge of the left upper die cavity for a circle and are matched with the outer contour of the left pressure plate when the die is closed; the upper flanging cutter blocks are arranged on the edges of the left side and the right side of the right upper die cavity and are matched with the outer contour of the right pressing plate during die closing; the lower trimming cutter blocks are arranged in the left lower die cavity of the lower die base and correspond to all the full-circumference trimming cutter blocks; the lower inserts are symmetrically arranged in the lower right die cavity of the lower die base, and the outer edges of the lower inserts are used for being matched with the upper flanging cutter blocks to complete flanging. The flanging and trimming device integrates the flanging function and the trimming function, effectively reduces cost, and is easy and convenient to maintain and high in precision.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile longitudinal beam upper part production mould, especially to a full perimeter trimming and flanging die for automobile longitudinal beam upper part. BACKGROUND

[0002] The longitudinal beam upper part of an automobile is a key component of the vehicle body structure, and its shape and dimensional accuracy affect the rigidity and safety of the whole vehicle. During its preparation process, it needs to be flanged and trimmed. The trimming process is used to remove excess material, and the flanging process is used to form and enhance the connection strength.

[0003] In the prior art, a separate die is usually used to flange and trim the longitudinal beam upper part, which has the following defects: high cost of design and manufacture, maintenance and repair; the die needs to be replaced between the flanging and trimming processes, increasing the production downtime and limiting the production efficiency; higher dimensional and shape accuracy control is required, and the cumulative error due to insufficient accuracy is more likely to occur.

[0004] Therefore, the prior art needs to be improved. UTILITY MODEL CONTENTS

[0005] The utility model provides a full perimeter trimming and flanging die for automobile longitudinal beam upper part to solve the above problems.

[0006] One of the technical solutions adopted by the utility model is to provide a full perimeter trimming and flanging die for automobile longitudinal beam upper part, which comprises: an upper die seat and a lower die seat.

[0007] A left pressure plate and a right pressure plate are respectively arranged in the left upper die cavity and the right upper die cavity of the upper die seat and are connected to the upper die seat through elastic mechanisms.

[0008] A plurality of full perimeter trimming blocks are arranged along the edge of the left upper die cavity and fit the outer contour of the left pressure plate when the die is closed.

[0009] A plurality of upper flanging blocks are arranged on the left and right edges of the right upper die cavity and fit the outer contour of the right pressure plate when the die is closed.

[0010] A plurality of lower trimming blocks are arranged in the left lower die cavity of the lower die seat and correspond to the full perimeter trimming blocks.

[0011] A pair of lower inserts are symmetrically arranged in the right lower die cavity of the lower die seat, and the outer edges thereof are used to cooperate with the upper flanging blocks to complete flanging.

[0012] Further, it further comprises a pair of hole flanging modules, which are symmetrically arranged at one end of the inner side of the corresponding lower inserts. The hole flanging module comprises a mounting seat and a hole flanging punch arranged on the mounting seat. The right pressure plate is provided with a punching hole corresponding to the hole flanging punch, and the hole flanging punch can complete the hole flanging of the longitudinal beam upper part at the same time.

[0013] Furthermore, it also includes three inner trimming blades, which are set in the middle area of ​​the upper right mold cavity and fit the inner contour of the right pressure plate when the mold is closed. The inner edge of the lower insert is used to cooperate with the inner trimming blades to complete the trimming.

[0014] Furthermore, coarse positioning structures are provided around the lower left and lower right mold cavities for coarse positioning of the outer edge of the workpiece on the upper part of the longitudinal beam.

[0015] The beneficial effects of this utility model of a full-circumference trimming and flanging mold for the upper part of an automobile longitudinal beam are:

[0016] 1. Two workstations are designed between the upper and lower mold bases, which can perform full-circumference trimming and corresponding flanging on the upper part of the longitudinal beam. The flanging and trimming functions are integrated into one, which effectively reduces the design and manufacturing costs and makes the mold maintenance more convenient.

[0017] 2. The integrated mold can ensure the consistency and accuracy of flanging and trimming processes, reduce errors caused by mold replacement, and greatly improve precision. Attached Figure Description

[0018] Fig. 1 This is a perspective view of a full-circumference trimming and flanging mold for the upper part of an automobile longitudinal beam, according to the first embodiment of this utility model.

[0019] Fig. 2 This is a top view of the lower mold base of a full-circumference trimming and flanging mold for the upper part of an automobile longitudinal beam, according to the first embodiment of this utility model.

[0020] Fig. 3 This is a bottom view of the upper mold base of a full-circumference trimming and flanging mold for the upper part of an automobile longitudinal beam, according to the first embodiment of this utility model.

[0021] Fig. 4 This is a perspective view (excluding the pressure plate) of the upper mold base of a full-circumference trimming and flanging mold for the upper part of an automobile longitudinal beam according to the first embodiment of this utility model.

[0022] The components in the attached diagram are labeled as follows: 1. Upper die holder, 2. Lower die holder, 11. Left pressure plate, 12. Full circumference trimming cutter block, 13. Right pressure plate, 14. Upper flanging cutter block, 15. Inner trimming cutter block, 21. Lower trimming cutter block, 22. Lower insert, 23. Mounting base, 24. Flanging punch, 131. Punch. Detailed Implementation

[0023] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0024] In the description of the utility model, it is understood that the terms "upper", "lower", "left", "right", "front", "rear", "horizontal", "vertical", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model, and cannot indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model.

[0025] Please refer to Figs. 1 to 4 The utility model provides a kind of automobile longitudinal beam upper part full perimeter trimming flanging die, comprising:

[0026] Upper die seat 1 and lower die seat 2, two are designed with two stations between them, which are full perimeter trimming position and flanging position respectively;

[0027] Left pressing plate 11 and right pressing plate 13 are respectively arranged in the left upper die cavity and the right upper die cavity of upper die seat 1, and are connected with upper die seat 1 by elastic mechanism, corresponding to the full perimeter trimming position of left side and the flanging position of right side;

[0028] A plurality of full perimeter trimming cutter blocks 12 are arranged along the edge of left upper die cavity, and fit the outer contour of left pressing plate 11 when closed die;

[0029] A plurality of upper flanging cutter blocks 14 are arranged on the left and right edges of right upper die cavity, and fit the outer contour of right pressing plate 13 when closed die;

[0030] Three inner trimming cutter blocks 15 are arranged in the middle region of right upper die cavity, and fit the inner contour of right pressing plate 13 when closed die;

[0031] A plurality of lower trimming cutter blocks 21 are arranged in the left lower die cavity of lower die seat 2, corresponding to each full perimeter trimming cutter block 12;

[0032] A pair of lower inserts 22 are symmetrically arranged in the right lower die cavity of lower die seat 2, the outer edge thereof is used for cooperating with upper flanging cutter block 14 to complete flanging, and the inner edge thereof is used for cooperating with inner trimming cutter block 15 to complete trimming;

[0033] A pair of hole flanging modules are symmetrically arranged at one end of the inner side of corresponding lower insert 22, and the hole flanging module comprises mounting seat 23 and hole flanging punch 24 arranged on mounting seat 23, and punching hole 131 corresponding to hole flanging punch 24 is arranged on right pressing plate 13, so that hole flanging can be completed at specific position while flanging upper part of longitudinal beam.

[0034] The positioning of workpiece consists of coarse positioning and fine positioning:

[0035] The rough positioning structure is generally in L shape, the lower section is detachably connected with the lower die seat, the upper section is perpendicular to the lower die seat, and the upper section has an arc-shaped contact surface on the side facing the workpiece placement position, so that the upper part workpiece outer edge of the longitudinal beam can be easily placed into the machining position along the arc-shaped contact surface.

[0036] The lower trimming cutter block in the left lower die cavity of the lower die seat has a certain profile, which helps the workpiece to be precisely positioned.

[0037] The upper and lower die seats are provided with guide rods for guiding the mold opening and closing actions, and the positions of the four corners of the lower die seat are usually provided with shock absorbing members.

[0038] The automobile longitudinal beam upper part full-circle trimming and flanging die has the advantages that:

[0039] 1. Two stations are designed between the upper and lower die seats, the trimming and flanging functions are integrated, the trimming and flanging of the upper part of the longitudinal beam can be processed, the design and manufacturing costs are reduced, the maintenance of the die is more convenient, and the trimming and flanging functions are integrated.

[0040] 2. The integrated die can ensure the consistency and accuracy of the trimming and flanging, reduce errors caused by die replacement, and greatly improve the precision.

[0041] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process transformation according to the content of the utility model specification and drawings, or direct or indirect application in other related technical fields is also included in the patent protection range of the utility model.

Claims

1. A mold for trimming and flanging the upper part of an automobile longitudinal beam, characterized in that, Comprise: Upper die seat and lower die seat; Left and right pressure material plate, respectively arranged in the left and right upper die cavity of the upper die seat, and connected with the upper die seat through elastic mechanism; A number of full circle trimming cutter blocks, arranged along the edge of the left upper die cavity, and matched with the outer contour of the left pressure material plate when the mold is closed; A number of upper flanging cutter blocks, arranged on the left and right edges of the right upper die cavity, and matched with the outer contour of the right pressure material plate when the mold is closed; A number of lower trimming cutter blocks, arranged in the left lower die cavity of the lower die seat, corresponding to each full circle trimming cutter block; A pair of lower inserts, symmetrically arranged in the right lower die cavity of the lower die seat, and the outer edge thereof used for cooperating with the upper flanging cutter block to complete flanging.

2. The full-circumference trimming and flanging die for the upper portion of an automobile rail according to claim 1, characterized in that, Further comprising a pair of hole flanging modules, symmetrically arranged at one end of the inner side of the corresponding lower insert, the hole flanging module comprising a mounting seat and a hole flanging punch arranged on the mounting seat, and the right pressure material plate is provided with a punching hole corresponding to the hole flanging punch, which can complete the hole flanging at a specific position while flanging the upper part of the longitudinal beam.

3. The full-circumference trimming and flanging die for the upper part of an automobile rail beam according to any one of claims 1 or 2, characterized in that, Further comprising three inner trimming cutter blocks, arranged in the middle area of the right upper die cavity, matched with the inner contour of the right pressure material plate when the mold is closed, and the inner edge of the lower insert used for cooperating with the inner trimming cutter block to complete trimming.

4. The full-circumference trimming and flanging die for the upper portion of an automobile side rail according to claim 3, characterized in that, Coarse positioning structure is further arranged on the periphery of the left and right lower die cavities.

5. The full-circumference trimming and flanging die for the upper part of an automobile rail beam according to any one of claims 1 or 2, characterized in that, Coarse positioning structure is further arranged on the periphery of the left and right lower die cavities.

6. The full-circumference trimming and flanging die for the upper portion of an automobile rail according to claim 5, wherein The coarse positioning structure is L-shaped, the lower segment is detachably connected with the lower die seat, the upper segment is perpendicular to the lower die seat, and the side of the upper segment facing the workpiece placement position has an arc contact surface.

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