Movable knife leaning mechanism of die

Abstract

The die movable knife leaning mechanism comprises an upper die base and a lower die base, and inserts are arranged on the opposite sides of the upper die base and the lower die base respectively. The material pressing plate is used for bearing a workpiece, and the material pressing plate is connected to the lower die base through a rotary telescopic mechanism; the upper die lateral-force-preventing wear-resisting plate is fixed to the upper die base, and after the upper die base moves to a designated position, the upper die lateral-force-preventing wear-resisting plate conducts extrusion deviation correction on the side wall of the insert on the lower die base; and the spring seat is fixed on the lower die seat and is opposite to the insert on the upper die seat. The flanging and forming mechanism is compact and reasonable in structure and convenient to operate, precise flanging and forming of a workpiece, precise matching of the upper die insert and the lower die forming insert in the mechanism and the deviation rectifying function of the upper die lateral force preventing wear-resisting plate are achieved through exquisite die structural design and optimization and improvement, lateral force in the forming process is effectively eliminated, and meanwhile the forming efficiency is improved. Due to the rotary lifting design of the pressing plate, the die structure is simplified, multi-directional machining is achieved, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a movable knife-supporting mechanism of a mold. Background Art

[0002] As the competition in the automobile market becomes increasingly fierce, major automobile manufacturers have increasingly higher requirements for stamping parts (parts) for new models, and parts tend to be more complex and high-strength. In the traditional mold manufacturing process, there are problems such as complex mold structure, high cost, difficulty in debugging, and low part qualification rate, which affect production efficiency and product quality.

[0003] Specifically, the mold is not adaptable enough to complex and high-strength parts: When existing molds are used to cope with the trend of complex and high-strength parts, the difficulty of debugging during the molding and flanging process increases, affecting the qualified rate of parts.

[0004] 2. Increased production costs: Difficulties in mold debugging and reduced parts qualification rates lead to increased scrap and reduced production efficiency during the production process, which in turn increases production costs.

[0005] 3. Traditional molds can generally only process one position. When the workpiece needs to be processed in multiple directions, additional operation of reversing is required, which can easily cause the workpiece to shift.

[0006] Therefore, a new type of mold movable knife mechanism is developed to solve the above problems. Utility Model Content

[0007] In view of the shortcomings of the above-mentioned existing production technology, the applicant provides a mold movable knife mechanism, thereby achieving precise flanging forming of the workpiece, improving the forming quality and consistency, and enhancing the versatility and production efficiency of the mold.

[0008] The technical solution adopted by the utility model is as follows:

[0009] include:

[0010] The upper die seat and the lower die seat are located on the same vertical line and move relative to each other, and inserts for flanging the workpiece are respectively arranged on opposite sides of the upper die seat and the lower die seat;

[0011] The pressing plate is used to carry the workpiece, and the pressing plate is connected to the lower die base through a rotary telescopic mechanism to drive the workpiece to rise and fall vertically and rotate and reverse;

[0012] The upper die anti-lateral force wear-resistant plate is fixed on the upper die base, and moves to a designated position with the upper die base to extrude and correct the side wall of the insert on the lower die base;

[0013] The spring seat is fixed on the lower die seat and arranged opposite to the insert on the upper die seat to provide preload force and demoulding force.

[0014] The insert comprises:

[0015] The upper die insert is fixed to the lower end of the upper die base and moves with the upper die base to provide downward pressure;

[0016] The lower die forming insert is fixed on the lower die base and cooperates with the moving upper die insert to realize flanging of the workpiece.

[0017] The pressing plate comprises a plurality of pressing blocks which are in the same plane and are distributed in an annular manner with equal distances, and a connecting plate which connects the plurality of pressing blocks together.

[0018] The rotary telescopic mechanism is located at the center of the connecting plate, and a tension spring is sleeved on the driving shaft of the rotary telescopic mechanism. The rotary telescopic mechanism provides a rotational driving force but does not actively provide a telescopic driving force.

[0019] The lower die forming insert is connected to the lower die seat via a fixed seat, and the fixed seat is opposite to and limits the upper die anti-lateral force wear-resistant plate.

[0020] The connecting plate is provided with an anti-slip mechanism.

[0021] The anti-skid mechanism includes anti-skid grooves or rubber protrusions.

[0022] The connecting plate is an electromagnet and generates magnetism for adsorbing the workpiece when powered on.

[0023] An adjustable movable knife assembly is arranged inside the lower die forming insert to achieve accurate positioning and forming of different workpieces.

[0024] The beneficial effects of the utility model are as follows:

[0025] The utility model has a compact and reasonable structure and is easy to operate. Through the sophisticated mold structure design and optimization and improvement, the precise flanging of the workpiece is achieved. The precise matching of the upper mold insert and the lower mold forming insert in the mechanism, as well as the correction effect of the upper mold anti-lateral force wear-resistant plate, effectively eliminates the lateral force in the forming process and improves the forming quality and consistency. At the same time, the rotating and lifting design of the pressure plate simplifies the mold structure, realizes multi-directional processing, improves production efficiency, enhances the positioning accuracy of the workpiece, and makes the mold more versatile.

[0026] At the same time, the utility model also has the following advantages:

[0027] Improve molding accuracy: Through the design of the movable knife mechanism, the mold can achieve accurate positioning and molding of the workpiece. The cooperation of the upper mold insert and the lower mold forming insert, as well as the correction function of the upper mold anti-lateral force wear-resistant plate, effectively eliminate the lateral force in the molding process and ensure the accuracy of the shape of the workpiece.

[0028] Enhance the versatility of the mold: The adjustable movable knife assembly set inside the lower mold forming insert allows the mold to be accurately adjusted according to the shape and size of different parts, thereby greatly improving the versatility of the mold and reducing production costs.

[0029] Simplified mold structure: The pressing plate adopts a rotating lifting design. After completing the flanging in one direction, it can be controlled to rotate to achieve flanging in the other direction, which improves work efficiency.

[0030] Improve production efficiency: By optimizing the mold structure and working principle, the upper and lower mold bases of the mold can complete the opening and closing actions quickly and accurately, thereby improving production efficiency.

[0031] Enhanced workpiece stability: The anti-slip mechanism set on the pressing plate and the application of electromagnet materials enhance the stability of the workpiece on the pressing plate and effectively prevent the displacement of the workpiece during the reversing process.

[0032] Improve demoulding effect: The design of the spring seat not only provides pre-tightening force for the mold, but also provides demoulding force when the mold is opened, helping the workpiece to smoothly leave the mold and improving the demoulding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of the utility model.

[0034] in:

[0035] 1. Upper die seat; 2. Upper die insert; 3. Upper die anti-lateral force wear-resistant plate; 4. Pressing plate; 5. Lower die forming insert; 6. Fixed seat; 7. Spring seat; 8. Rotary telescopic mechanism; 9. Workpiece; 10. Lower die seat. DETAILED DESCRIPTION

[0036] The specific implementation of the present utility model is described below in conjunction with the accompanying drawings.

[0037] Embodiment 1

[0038] like Figure 1 As shown, this embodiment provides a mold movable knife mechanism, which is suitable for accurate flanging of parts. The overall structure of the mechanism is stable and easy to operate, and can effectively eliminate the lateral force during the molding process, thereby improving the molding quality and consistency of the parts.

[0039] The specific implementation is as follows:

[0040] In this embodiment, first, the mold mechanism is composed of an upper mold base 1 and a lower mold base 10, which are located on the same vertical line and move relative to each other. An upper mold insert 2 and a lower mold forming insert 5 are respectively arranged on the opposite side of the upper mold base 1 and the lower mold base 10, which are used to flanging the workpiece 9. The upper mold insert 2 is fixed to the lower end of the upper mold base 1 and provides downward pressure as the upper mold base 1 moves; the lower mold forming insert 5 is fixed to the lower mold base 10 and cooperates with the upper mold insert 2 to realize the flanging of the workpiece 9.

[0041] In this embodiment, the lower die forming insert 5 is connected to the lower die base 10 through a fixing seat 6, and the fixing seat 6 is opposite to the upper die anti-lateral force wear-resistant plate 3 and limits it.

[0042] The press plate 4, as a key component for supporting the workpiece 9, is connected to the lower die base 10 through a rotary telescopic mechanism 8. The press plate 4 is composed of a plurality of pressing blocks that are in the same plane and are equidistantly distributed in a ring shape, and a connecting plate connecting these pressing blocks. The rotary telescopic mechanism 8 is located at the center of the connecting plate, and a tension spring is sleeved on its driving shaft. The rotary telescopic mechanism 8 provides a rotational driving force, but does not actively provide a telescopic driving force. Instead, it relies on the elastic force of the tension spring to realize the vertical lifting and lowering of the press plate 4. The rotary telescopic mechanism 8 is a rotary telescopic hydraulic cylinder or an electric rotary telescopic cylinder.

[0043] In addition, the upper die anti-lateral force wear-resistant plate 3 is fixed on the upper die base 1. When the upper die base 1 moves to the specified position, the wear-resistant plate squeezes and corrects the side wall of the lower die forming insert 5 on the lower die base 10, effectively eliminating the lateral force during the forming process.

[0044] A spring seat 7 is also fixed on the lower die seat 10, and is arranged opposite to the upper die insert 2 on the upper die seat 1. The spring seat 7 not only provides a preload force to ensure the stability of the mold before closing, but also provides a demoulding force when the mold is opened to help the workpiece 9 to smoothly leave the mold.

[0045] During the working process, the mold is first in the initial state, the upper mold is located at the upper dead center of the machine tool, and the lower mold is stationary on the work surface of the punch press. At this time, the pressure plate 4 is fully opened under the action of the nitrogen spring seat, ready for the placement of the workpiece 9. Subsequently, the punch press begins to press down, and the pressure plate 4 and the upper mold insert 2 move down synchronously to apply a clamping force to the workpiece 9. When the upper mold anti-lateral force wear-resistant plate 3 contacts the backrest guide sliding surface of the lower mold forming insert 5, the sliding fit between the two begins to play a role, eliminating the lateral force. As the punch press continues to press down, the workpiece 9 gradually fits and completely fits with the lower mold forming insert 5, completing the upward forming process of the workpiece; when the workpiece 9 completes the flanging in one direction, the lower mold forming insert 5 returns to its original position, and the rotary telescopic mechanism 8 drives the pressure plate 4 to rotate to the position where the flanging is required, and then repeats the above process to realize the process of automatically flanging other parts of the workpiece 9, thereby improving work efficiency.

[0046] The movable knife mechanism in this embodiment is ingeniously designed, and the precise flanging of the workpiece is achieved through the precise matching of the upper die insert 2 and the lower die forming insert 5, as well as the correction effect of the upper die anti-lateral force wear plate 3. At the same time, the rotating lifting design of the pressing plate 4 not only improves the positioning accuracy of the workpiece, but also simplifies the mold structure and improves production efficiency.

[0047] Embodiment 2

[0048] This embodiment provides another specific implementation of the mold movable knife-supporting mechanism, which is further optimized and improved on the basis of the previous embodiment, especially in terms of the positioning and molding accuracy of the workpiece.

[0049] The specific implementation is as follows:

[0050] First, in the design of the press plate 4, in addition to the use of annular equidistantly distributed pressing blocks and connecting plates, an anti-skid mechanism is also provided on the connecting plate. The anti-skid mechanism can be an anti-skid pattern or a rubber protrusion to enhance the stability of the workpiece 9 on the press plate 4. In addition, the connecting plate can also be made of an electromagnet material, which generates magnetism when powered on, and is used to adsorb the workpiece 9, further improving the positioning accuracy of the workpiece and preventing the workpiece 9 from shifting when changing direction.

[0051] Secondly, an adjustable movable knife assembly is provided inside the lower mold forming insert 5. The movable knife assembly can be precisely adjusted according to the shape and size of different parts 9 to ensure the precise fit between the mold and the parts. This design greatly improves the versatility and molding accuracy of the mold and reduces production costs.

[0052] During the working process of the mold, the pressing plate 4 is driven by the rotary telescopic mechanism 8 to realize rotation, lifting and reversing, driving the workpiece 9 to be accurately positioned. At the same time, the sliding cooperation between the upper mold anti-lateral force wear-resistant plate 3 and the lower mold forming insert 5 and the adjustment of the movable knife assembly jointly ensure the accurate forming of the workpiece. As the punch press continues to press down, the mold gradually fits and completely fits under the action of the punching force, and the workpiece is completed.

[0053] The beneficial effects of the utility model are to ensure the stability of the mold and the product, improve the production efficiency, reduce the mold repair cost of the debugging personnel, and improve the production quality of automobile parts.

[0054] The above description is an explanation of the utility model, not a limitation of the utility model. The scope of the utility model is defined by the claims. Any form of modification can be made within the protection scope of the utility model.

Claims

1. The mold movable knife mechanism is characterized by: include: The upper die base (1) and the lower die base (10) are located on the same vertical line and move relative to each other, and inserts for flanging the workpiece (9) are respectively provided on opposite sides of the upper die base (1) and the lower die base (10); A pressing plate (4) is used to support the workpiece (9), and the pressing plate (4) is connected to the lower die base (10) via a rotary telescopic mechanism (8) and is used to drive the workpiece (9) to vertically lift and rotate; An upper die anti-lateral force wear-resistant plate (3) is fixed on the upper die base (1) and moves with the upper die base (1) to a designated position to extrude and correct the side wall of the insert on the lower die base (10); The spring seat (7) is fixed on the lower die seat (10) and is arranged opposite to the insert on the upper die seat (1) to provide a preload force and a demoulding force.

2. The mold movable knife mechanism according to claim 1, characterized in that: The insert comprises: An upper die insert (2) is fixed to the lower end of the upper die base (1) and moves with the upper die base (1) to provide downward pressure; The lower die forming insert (5) is fixed on the lower die base (10) and cooperates with the moving upper die insert (2) to achieve flanging of the workpiece (9).

3. The mold movable knife mechanism according to claim 1, characterized in that: The pressing plate (4) comprises a plurality of pressing blocks which are located in the same plane and are equidistantly distributed in an annular shape, and a connecting plate which connects the plurality of pressing blocks together.

4. The mold movable knife mechanism according to claim 3, characterized in that: The rotary telescopic mechanism (8) is located at the center of the connecting plate, and a tension spring is sleeved on the driving shaft of the rotary telescopic mechanism (8). The rotary telescopic mechanism (8) provides a rotational driving force but does not actively provide a telescopic driving force.

5. The mold movable knife mechanism according to claim 2, characterized in that: The lower die forming insert (5) is connected to the lower die seat (10) via a fixing seat (6), and the fixing seat (6) is opposite to the upper die lateral force protection wear-resistant plate (3) and limits the position of the upper die.

6. The mold movable knife mechanism according to claim 3, characterized in that: The connecting plate is provided with an anti-slip mechanism.

7. The mold movable knife mechanism according to claim 6, characterized in that: The anti-skid mechanism includes anti-skid grooves or rubber protrusions.

8. The mold movable knife mechanism according to claim 6, characterized in that: The connecting plate is an electromagnet and generates magnetism when powered on for adsorbing the workpiece (9).

9. The mold movable knife mechanism according to claim 2, characterized in that: An adjustable movable knife assembly is arranged inside the lower die forming insert (5) to achieve accurate positioning and forming of different workpieces (9).

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