CN210877105U

CN210877105U - Novel side plastic mould of whole side wall of processing

Info

Publication number: CN210877105U
Application number: CN201921746044.3U
Authority: CN
Inventors: 刘焱; 陈祥智; 黄利文; 汪鑫; 陈阳勇
Original assignee: Hubei Qixing Truck And Cabin Manufacturing Co ltd
Current assignee: Hubei Qixing Mould Manufacturing Co ltd
Priority date: 2019-10-17
Filing date: 2019-10-17
Publication date: 2020-06-30
Anticipated expiration: 2029-10-17

Abstract

The utility model provides a novel side plastic mould of whole side wall of processing, includes mould and lower mould, goes up the mould and includes: the device comprises an upper die holder, an upper pressure plate, a forward-turning female die, a nitrogen spring, a wedge driver, a side-finishing female die, a guide plate, a balance block, guide legs and a guide sleeve; the lower die comprises: the device comprises a lower die base, a forward turning convex die, a side finishing convex die, a guide leg groove, a guide pillar, a movable convex die, a wedge pulley and a side finishing slide block. The utility model discloses can realize putting a location accuracy, the whole supports of side whole terrace die to side plastic quality has been guaranteed.

Description

Novel side plastic mould of whole side wall of processing

Technical Field

The utility model relates to a cold stamping die specifically is a novel whole side wall side plastic mould, belongs to the mould technical field among the mechanical engineering.

Background

The integral side wall is the most key bearing component of the truck cab, and the parts have the characteristics of large overall dimension, complex shape, more assembly relation, difficult forming and the like. The matching of the automobile door frame and the automobile door in the middle of the side wall requires high sealing, the upper part is matched with the top cover to prevent water leakage, the front part is equivalent to a front upright post, the upper part is a windshield glass window, the lower part is matched with the front wall outer plate and the front wall lower part, and the rear part is attached to the rear wall outer plate. The section shape of the door frame at the front edge of the workpiece is narrow because windshield glass is arranged in front of the door frame, and door glass is arranged on the side of the door frame, so that if the door frame is widened, a binocular overlapping barrier angle is enlarged, the sight of a driver is influenced, and the driving safety is reduced (see fig. 1-3).

The side shaping of the upper part of the side body is one of the most important processes in the forming process, and the positioning support is required to be reliable during forming, the side shaping cannot deform, the side shaping cannot wrinkle, and the forming withdrawal is required to be convenient. These requirements are difficult to achieve because of the extreme narrowness of the section and the large lateral stroke (25 mm) and the severe material shrinkage.

At present, a commonly used side shaping die is shown in fig. 4, a movable male die is a partially supported structure, the structure ensures that the width of a pressure surface is more than or equal to 40mm during side shaping, but a wide suspension belt is arranged on the inner side of the pressure surface and is used for ensuring that the movable male die does not collide with a workpiece when contracting. The parts extruded using this die structure, although already used in many vehicle models, have 2 major drawbacks:

when the die is used for opening a workpiece, the movable male die is in a contraction state, the left side of the workpiece is not supported, and the positioning is not accurate enough;

when the side finishing is carried out, the top of the workpiece is suspended, and the local micro deformation of the workpiece can be caused, so that the sealing precision of the vehicle door and the door frame is damaged. Therefore, it is desirable to design a new mold structure to overcome the above disadvantages and ensure the molding quality.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: aiming at the defects existing in the prior art, the novel side shaping die is provided, the structure can realize accurate positioning of the placing part, and the side shaping male die is completely supported, so that the side shaping quality is ensured.

This patent is realized through following technical scheme, and the mould structure includes mould and lower mould, goes up the mould and includes: the device comprises an upper die holder, an upper pressure plate, a forward-turning female die, a nitrogen spring, a wedge driver, a side-finishing female die, a guide plate, a balance block, guide legs and a guide sleeve; the lower die comprises: the device comprises a lower die base, a forward-turning convex die, a side-finishing convex die, a guide leg groove, a guide pillar, a movable convex die, a wedge pulley, a side-finishing slide block and the like, wherein a middle cavity below the upper die base is provided with an upper pressure plate, the periphery of the upper pressure plate is in sliding fit with the upper die base through a guide plate, a nitrogen spring is arranged between the upper pressure plate and the upper die base, the forward-turning concave die and the right side of the upper pressure plate are fixed on the upper die base, and the left side of the upper pressure plate is fixed; the middle of the lower die holder is fixed with a forward turning convex die, the left side of the lower die holder is fixed with a side shaping convex die, the lower part of the lower die holder is provided with a movable convex die on a wedge tackle, the two convex dies are guided to slide by a guide plate, the side wall inner shape is supported during forming, and the left side of the movable convex die is arranged on a side shaping sliding block.

The utility model has the advantages that:

the utility model discloses the working process does: the upper die moves upwards, the die is opened, the side whole female die is expanded by the wedge pulley firstly to be separated from the movable male die, then the movable male die is contracted to the initial position by the wedge pulley, and then the upper die is put into the upper-sequence working procedure part; when the upper die is matched with the lower die, the wedge pulley firstly expands the movable male die in place, and then the sliding block shrinks the side finishing concave into the groove of the movable male die, so that the side finishing work is completed. The utility model discloses change original movable terrace die into fixed terrace die insert (can understand the combination of upper die base and last pressure flitch) and activity terrace die two parts, fixed terrace die insert is last, is supporting the finished piece, and the activity terrace die is under, and the side plastic is got during the expansion, gets the piece during the shrink to do not produce the odd change when having guaranteed the accurate positioning of finished piece and taking shape.

Drawings

FIG. 1 is a side plan view.

FIG. 2 shows a cross section of the side wall a-a.

FIG. 3 is a cross section of side wall b-b;

FIG. 4 is a side view of the master mold structure.

Fig. 5 is a schematic structural diagram of the present patent.

Figure 6 is a view of the mold of this patent in an open state.

FIG. 7 is a view showing a closed state of the mold of this patent.

The device comprises an upper die base 1, an upper pressure plate 2, a forward turning female die 3, a nitrogen spring 4, a wedge driver 5, a side finishing female die 6, a guide plate 7, a balance block 8, a guide leg 9, a guide sleeve 10, a lower die base 11, a forward turning male die 12, a side finishing male die 13, a guide leg groove 14, a guide post 15, a movable male die 16, a wedge pulley 17, a side finishing slider 18 and a fixed male die 19.

Detailed Description

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings: the embodiment is the 4 th order turn-ups plastic side shaping and the side punching die that punches a hole (OP 40-FL + RST + CRST + PI + CPI) of the whole side wall of a certain motorcycle type, and this mould is designed according to the technical scheme that the utility model provides, and detailed implementation mode and real technological parameter have been given in the example, but the scope of protection of this patent is not limited to the following example.

The content of the 4 th procedure of the left and right integral side wall of a certain vehicle is shown in figure 1, the main content of the procedure is the side shaping of the top of a workpiece, and is shown in the section a-a of the side wall of figure 2. The side shaping of the side b-b section front windshield a-pillar of fig. 3 will be done at OP50, which are the most critical processes. The 4 th order side shaping adopts less convex and concave die split wedges, most of the wedges adopt a primary and secondary wedge structure, a wedge pulley drives a movable convex die to expand in place and is not moved during die assembly, then a side shaping concave die is driven by a side shaping sliding block to enter a groove of the movable convex die to complete side shaping work, the side shaping concave die exits during die opening, and a part is taken after the movable convex die contracts. The original mold design only considers that the width of the pressing surface of the pressing plate meets the condition of being larger than 40mm, a wider stroke space is reserved above the molded surface of the movable male mold to prevent the movable male mold from colliding with a workpiece, and the mold structure at the moment is shown in figure 4. Extruded parts have been used on many vehicle models, but it has 2 disadvantages:

when the mold is opened, the movable male mold is in a contraction state, a workpiece is not accurately positioned, and the movable male mold is required to be straightened when being expanded;

when the side finishing is carried out, the top of the part is wide and is not supported, so that the part can generate micro deformation locally during forming, and the micro deformation can influence the gap between a vehicle door and a door frame, therefore, a novel mold structure must be designed.

Fig. 5 is a schematic diagram of the mold structure of this patent, which divides the movable male mold into two parts, the separation surface of the two parts is horizontal, the curved surface of the upper part is the whole shape of the workpiece, and it is directly fixed on the upper mold base 1, which can ensure the positioning accuracy of the workpiece, and the lower part is the movable male mold 16, which can make the workpiece obtain full-shape support when it is horizontally expanded in place, thus ensuring the side quality of the workpiece.

Fig. 6 shows the mold structure of this patent in an open state, where the movable male mold 16 is in a contracted state, the workpiece is taken and placed smoothly, and the workpiece and the mold do not interfere with each other.

FIG. 7 shows the closed state of the mold, wherein the movable male mold 16 is in an expanded state, the side-finishing male mold and the female mold are engaged to complete the side-finishing operation, and the finished part is supported in a full-mold manner during the side-finishing operation, so that the quality can be thoroughly ensured.

The working principle is as follows: the slide block of the press moves upwards to open the die, the slide wedge pulley 17 firstly retracts the movable male die 16 to the minimum position, then the working procedure part is put on, the fixed insert male die surface is used for positioning, the upper die moves downwards, the slide wedge driver 5 drives the slide wedge pulley 17 to drive the movable male die 16 to expand in place and be immobile, the pressing core presses the material in a full shape, and then the side finishing slide block 18 retracts the side finishing female die 6 to push the side finishing female die into the groove of the movable male die 16, so that the side finishing work is completed; when the mold is opened, the side trimming slide block 18 firstly takes the side trimming female mold 6 away from the movable male mold 16, then the wedge pulley 17 retracts the movable male mold 16 to the initial position, and finally the workpiece is taken out for the next cycle. The full-type support of the workpiece during side shaping can avoid micro deformation caused by poor support, thereby achieving the purpose of improving the side shaping quality. After the side finishing is finished, the upper die is lifted, and the movable male die 16 contracts again to avoid the inward closed flanging of the workpiece, so that a space is provided for the workpiece.

Claims

1. The utility model provides a novel side plastic mould of whole side wall of processing, includes mould and lower mould, goes up the mould and includes: the device comprises an upper die holder (1), an upper pressure plate (2), a forward-turning female die (3), a nitrogen spring (4), a wedge driver (5), a side-finishing female die (6), a guide plate (7), a balance block (8), guide legs (9) and guide sleeves (10); the lower die comprises: lower bolster (11), just turn over terrace die (12), side whole terrace die (13), lead leg recess (14), guide pillar (15), activity terrace die (16), slide wedge coaster (17), side whole slider (18), its characterized in that: an upper pressure plate (2) is arranged in a middle cavity below the upper die base (1), the periphery of the upper pressure plate (2) is in sliding fit with the upper die base (1) through guide plates (7), a nitrogen spring (4) is arranged between the upper pressure plate (2) and the upper die base (1), a right-side forward-turning female die (3) of the upper pressure plate (2) is fixed on the upper die base (1), and a wedge driver (5) is fixed on the left side; a forward turning male die (12) is fixed in the middle of a lower die seat (11), a side trimming male die (13) is fixed on the left side, a movable male die (16) on a wedge pulley (17) is arranged below the side trimming male die, a guide plate (7) is used for guiding and sliding between the two male dies, a side wall inner die is supported during forming, and the left side of the movable male die (16) is installed on a side trimming sliding block (18).