Large-arc M-shaped guide piece forming tool

Abstract

The utility model discloses a large-arc M-shaped guide piece forming tool which is used for conducting guide production on guide pieces and comprises a lower die plate. Side edge lower male dies are arranged on the left side and the right side of the upper end of the lower die plate. A central lower male die is arranged between the left side edge lower male die and the right side edge lower male die; the upper ends of the side edge lower male die and the central lower male die are connected with a reinforcing positioning plate; a rectangular groove is formed in the center of the reinforcing positioning plate, a workpiece blank is placed on the rectangular groove, and the workpiece blank is supported through the cambered surface of the upper end of the center lower male die and the upper ends of the left side edge lower male die and the right side edge lower male die; an upper concave-convex die is arranged at the upper end of the workpiece blank; and the upper end of the upper concave-convex die is fixedly connected with the upper die plate. Through reasonable design and structural layout, the large-arc M-shaped guide piece forming tool has the beneficial effects of being high in precision, high in strength, easy to maintain, flexible in adaptation, safe and the like, and the production efficiency and the forming quality of guide pieces can be effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a big circular arc M shape guide vane forming frock belongs to agricultural equipment technical field. BACKGROUND

[0002] With the development of modern agriculture, the performance requirements of agricultural machinery are continuously improved. Especially in the grassland working equipment such as mower, as one of the key components, the design of guide vane directly affects the mowing efficiency, operation quality and durability of the machine. The traditional guide vane design adopts simple geometric shape, which does not fully consider the complexity of grassland environment and the dynamic load characteristics in the mowing process, which leads to a series of problems such as insufficient wear resistance, poor guiding effect and poor operation stability in actual application.

[0003] In view of this situation, the guide vane design with big circular arc M shape structure emerges as the times require, referring to Figure 1 and Figure 2 This design not only can effectively reduce the contact area with the ground, thereby reducing the friction resistance, but also can better guide the growth direction of grass through its unique geometric shape, ensuring that the mower can travel smoothly during operation, avoiding the uneven mowing phenomenon caused by incorrect guidance of grass. At the same time, the design of big circular arc can also provide better impact force dispersion effect in the mowing process, reduce the instantaneous impact on the blade during cutting, and thus prolong the service life of the blade.

[0004] In order to realize the production of this new type of big circular arc M shape guide vane, it is necessary to design a special guide frock. CONTENT OF THE UTILITY MODEL

[0005] In view of the problems existing in the prior art, the utility model provides a big circular arc M shape guide vane forming frock, thereby solving the above technical problems.

[0006] In order to achieve the above purpose, the utility model adopts the technical scheme that a big circular arc M shape guide vane forming frock is used for guiding production of guide vane, comprising a lower die plate; a side edge lower convex die is arranged on the left and right sides of the upper end of the lower die plate; a center lower convex die is arranged between the left and right two side edge lower convex dies; a reinforcing positioning plate is connected to the upper end of the side edge lower convex die and the center lower convex die; a rectangular slot is formed in the center of the reinforcing positioning plate, a workpiece blank is placed in the rectangular slot, and the workpiece blank is supported by the upper end arc surface of the center lower convex die and the upper end of the left and right two side edge lower convex dies; an upper concave convex die is arranged at the upper end of the workpiece blank; and the upper end of the upper concave convex die is fixedly connected with an upper die plate.

[0007] Further, the lower die plate is fixedly connected with the side lower punch through a plurality of screw members, and the side arc surface of the side lower punch is used for guiding the side forming of the guide piece.

[0008] Further, the lower end of the center lower punch is connected with a plurality of ejector rods, the ejector rods pass through the through holes in the center end of the lower die plate, and the center lower punch is moved during the pressing process; and the upper arc surface of the center lower punch is used for guiding the arc forming of the center of the guide piece.

[0009] Further, the outer side of the side lower punch is connected with a side fixed supporting plate through a second screw member; the side fixed supporting plate is provided with a protruding block structure on the side surface opposite to the side lower punch, the protruding block structure is a whole inverted conical block, the side lower punch is provided with a clamping groove matched with the protruding block structure on one side, the side fixed supporting plate is fixedly clamped with the side lower punch through the cooperation of the protruding block structure and the clamping groove, and is effectively fixed through the second screw member; and the upper end surface of the side fixed supporting plate is used for effectively supporting the bottom of the reinforcing positioning plate.

[0010] Further, the upper concave-convex punch is located above the rectangular groove and is fixedly connected with the upper die plate through a third screw member; and the upper die plate is connected with the upper end of the molding machine through a fixing member.

[0011] The utility model discloses the beneficial effects are:

[0012] By adopting the above tooling, the combination of the center lower punch and the side lower punch effectively guarantees the forming precision of the guide piece.

[0013] The design of the reinforcing positioning plate and the rectangular groove arranged at the center position can effectively fix and position the workpiece blank, the workpiece blank is supported by the upper arc surface of the center lower punch and the upper end of the left and right two side lower punches, so that the workpiece blank is stably supported during the forming process, the displacement of the workpiece during the forming process is avoided, and the forming quality is ensured.

[0014] The design of the side fixed supporting plate, the cooperation of the inverted conical block and the clamping groove, the increase of the strength and stability of the whole structure, the bearing of the high-pressure forming process and the avoidance of the forming defects caused by deformation are realized.

[0015] Through the effective forming process and the repeated use of the mold, material waste and production cost are reduced, production efficiency is improved, higher economic benefits are brought to enterprises, safety is considered in the structural design, the stable connection of various components during the forming process is ensured, and the safety hidden danger caused by equipment failure or component loosening is reduced.

[0016] In conclusion, the large circular arc M-shaped guide vane forming tool has high precision, high strength, easy maintenance, flexible adaptation, safety and other beneficial effects, and can effectively improve the production efficiency and forming quality of the guide vane. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A workpiece structure schematic view for the background technology of the present application;

[0018] Figure 2 A workpiece structure schematic view for the background technology of the present application;

[0019] Figure 3 A workpiece and tool overall structure schematic view for the present application;

[0020] Figure 4 A tool structure schematic view for the present application;

[0021] Figure 5 A tool structure schematic view for the present application;

[0022] In the figure: 1, guide vane, 2, lower die plate, 3, side lower punch, 4, center lower punch, 5, upper concave punch, 51, screw piece three, 6, ejector pin, 7, side fixed supporting plate, 71, screw piece two, 8, reinforcing positioning plate, 81, rectangular slot, 9, workpiece blank, 10, screw piece one, 11, upper die plate. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the present application more clear and explicit, the following will be further described in detail by means of the drawings and examples. However, it should be understood that the specific examples described herein are only used to explain the present application, and are not used to limit the scope of the present application.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application.

[0025] As Figure 3 , Figure 4 and Figure 5As shown, a large circular arc M-shaped guide vane forming tool is used for guiding production of the guide vane 1, comprising a lower die plate 2; the lower die plate 2 is provided with side edge lower protruding dies 3 on the left and right sides of the upper end; a center lower protruding die 4 is arranged between the left and right side edge lower protruding dies 3; the side edge lower protruding dies 3 and the center lower protruding die 4 are connected with a reinforcing positioning plate 8 at the upper end; a rectangular slot 81 is formed in the center of the reinforcing positioning plate 8, and a workpiece blank 9 is placed in the rectangular slot 81, which is supported by the upper end arc surface of the center lower protruding die 4 and the upper end of the left and right side edge lower protruding dies 3; an upper concave-convex die 5 is arranged at the upper end of the workpiece blank 9; and the upper end of the upper concave-convex die 5 is fixedly connected with an upper die plate 11.

[0026] Preferably in this embodiment, the lower die plate 2 is fixedly connected with the side edge lower protruding dies 3 through a plurality of screw members I 10, and the side edge arc surface of the side edge lower protruding dies 3 is used for side edge forming of the guide vane 1; and the lower die plate 2 is fixed on the forming machine base through a fixing member.

[0027] Preferably in this embodiment, the center lower protruding die 4 is connected with a plurality of ejector pins 6 at the lower end, the ejector pins 6 pass through the through holes formed in the center end of the lower die plate 2, thereby realizing the movement of the center lower protruding die 4 during the pressing process; and the upper end arc surface of the center lower protruding die 4 is used for arc surface forming of the center of the guide vane.

[0028] Preferably in this embodiment, the outer side edge of the side edge lower protruding die 3 is connected with a side fixed supporting plate 7 through a screw member II 71; the side fixed supporting plate 7 is provided with a protruding block structure on the side surface opposite to the side edge lower protruding die 3, the protruding block structure is a whole inverted conical block, a clamping groove matched with the protruding block structure is arranged on one side of the side edge lower protruding die 3, the side fixed supporting plate 7 is fixedly clamped with the side edge lower protruding die 3 through the cooperation of the protruding block structure and the clamping groove, and is effectively fixed through the screw member II 71; and the upper end surface of the side fixed supporting plate 7 is used for effectively supporting the bottom of the reinforcing positioning plate 8.

[0029] Preferably in this embodiment, the upper concave-convex die 5 is above the rectangular slot 81 and is fixedly connected with the upper die plate 11 through a screw member III 51; and the upper die plate 11 is connected with the upper end of the forming machine through a fixing member.

[0030] Working principle: an action force is applied to the upper die plate 4 through the upper end of the forming machine, thereby driving the upper concave-convex die 5 to press down the workpiece blank 9, the workpiece blank 9 drives the center lower protruding die 4 to press down in the pressing process, and when reaching the bottom, the side edge arc surfaces of the left and right side edge lower protruding dies 3 are used for side edge forming of the guide vane 1; and the center lower protruding die 4 is used for center forming of the guide vane 1.

[0031] The utility model discloses beneficial effect is: through adopting above-mentioned tooling, in the combination of center lower punch and side lower punch, effectively guarantee the forming precision of guide piece. The cooperation of upper and lower mould and its arc design ensure that the side and center curved surface of guide piece can reach the expected forming standard, reduce the forming error, strengthen the design of positioning plate and the rectangular slot set in its center position, can effectively fix the positioning workpiece blank, and the workpiece blank is supported through the upper end arc surface of center lower punch and the upper end of left and right two side lower punches, makes it get stable support in the forming process, like this can avoid the displacement of workpiece in the forming process, ensure the forming quality, the design of side fixed supporting plate, cooperate with the cooperation of inverted conical block and clamping groove, increase the strength and stability of overall structure, can bear the high pressure forming process, avoid the forming defect caused by deformation, through effective forming process and the repeated use of mould, reduce material waste and production cost, improve production efficiency simultaneously, thereby bring higher economic benefit for enterprise, the safety in structure design is considered, ensure the stable connection of each component in the forming process, reduce the security risk caused by equipment failure or part loosening.

[0032] In conclusion, the large circular arc M-shaped guide piece forming tool has the beneficial effects of high precision, high strength, easy maintenance, flexible adaptation and safety through reasonable design and structural layout, and can effectively improve the production efficiency and forming quality of the guide piece.

[0033] The above only is the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement or improvement etc. in the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A forming fixture for a large arc M-shaped guide piece, used for guiding the production of guide pieces (1), characterized in that, Includes a lower template (2); side lower punches (3) are provided on the left and right sides of the upper end of the lower template (2); a central lower punch (4) is provided between the two side lower punches (3); a reinforcing positioning plate (8) is connected to the upper end of the side lower punches (3) and the central lower punch (4); a rectangular groove (81) is opened at the center of the reinforcing positioning plate (8), and a workpiece blank (9) is placed on the rectangular groove (81). The workpiece blank (9) is supported by the upper arc surface of the central lower punch (4) and the upper ends of the two side lower punches (3); an upper concave punch (5) is provided at the upper end of the workpiece blank (9); the upper end of the upper concave punch (5) is fixedly connected to the upper template (11).

2. The forming fixture for a large arc M-shaped guide piece according to claim 1, characterized in that, The lower template (2) is fixedly connected to the side lower punch (3) by a plurality of screws (10). The side arc surface of the side lower punch (3) is used for side forming of the guide plate (1). The lower template (2) is fixed on the base of the forming machine by a fastener.

3. The forming fixture for a large arc M-shaped guide piece according to claim 1, characterized in that, The lower end of the central lower punch (4) is connected to multiple push rods (6), which pass through the through hole at the center end of the lower template (2) to realize the movement of the central lower punch (4) during the pressing process; the upper arc surface of the central lower punch (4) is used for the arc surface forming of the center of the guide plate.

4. The forming fixture for a large arc M-shaped guide piece according to claim 1, characterized in that, The outer side of the lower side punch (3) is connected to a side fixing plate (7) by a screw (71); the side fixing plate (7) is provided with a protrusion structure on the side opposite to the lower side punch (3). The protrusion structure is an inverted cone-shaped block. A slot that cooperates with the protrusion structure is provided on one side of the lower side punch (3). The two are fixed and clamped by the cooperation of the protrusion structure and the slot, and are effectively fixed by the screw (71); the upper end of the side fixing plate (7) is used to effectively support the bottom of the reinforcing positioning plate (8).

5. The forming fixture for a large arc M-shaped guide piece according to claim 1, characterized in that, The upper concave and convex mold (5) is located above the rectangular groove (81) and is fixedly connected to the upper template (11) by screw part three (51); the upper template (11) is connected to the upper end of the molding machine by a fixing part.

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