A full-enclosure part inner-flange-face precision correction mechanism

Abstract

A precision correction mechanism for the inward flange surface of a fully enclosed part includes an upper mold (10) and a lower mold (20). The upper mold (10) includes an upper mold base (11), an upper shaping insert (12), a driving block (13), and an upper pressure plate (14). A nitrogen spring (15) is provided between the upper mold base (11) and the upper pressure plate (14). A slider (141) is movably arranged inside the upper pressure plate (14), and a shaping insert (142) is provided on the lower surface of the slider (141). The lower mold (20) includes at least a lower mold insert (21). This utility model provides an upper shaping insert, a driving block, and an upper pressure plate on the upper mold base, and a slider on the upper pressure plate. The shaping insert is provided on the lower surface of the slider. The driving block drives the slider to move the shaping insert between the upper shaping insert and the lower mold insert to complete the precision correction operation of the inward flange surface of the fully enclosed part. This not only has low production cost but also simple process.

Description

Technical Field

[0001] This utility model relates to the field of cold stamping die technology, and in particular to a precision correction mechanism for the inner flange surface of a fully enclosed part. Background Technology

[0002] In mold design and straightening manufacturing, the precision control of the inward flange face of fully enclosed parts must be separated into two parts; otherwise, the mold structure cannot be realized. Welding the two parts together will result in higher production costs and more complex processes, which cannot meet the increasingly higher precision requirements of modern industry and production for the inward flange face of fully enclosed parts.

[0003] Therefore, existing technologies need to be improved and enhanced. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a low-cost, simple-to-manufacture, fully enclosed part inward flange surface precision correction mechanism.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A precision correction mechanism for the inward flange surface of a fully enclosed part includes an upper mold and a lower mold.

[0007] The upper mold includes an upper mold base, an upper shaping insert and a driving block arranged side by side on the lower surface of the upper mold base, and an upper pressure plate arranged between the upper shaping insert and the driving block. A nitrogen spring is arranged between the upper mold base and the upper pressure plate. A slider that cooperates with the driving block is movably arranged inside the upper pressure plate. A shaping insert is arranged on the lower surface of the slider.

[0008] The lower mold includes at least one lower mold insert that cooperates with the shaping insert.

[0009] As a further embodiment of this utility model, the driving block has a driving inclined surface, and the slider has a passive inclined surface that cooperates with the driving inclined surface.

[0010] As a further embodiment of this invention, both the driving inclined surface and the passive inclined surface are stepped inclined surfaces.

[0011] As a further embodiment of this utility model, the upper pressure plate has a movable groove, the movable groove is provided with the slider, and a reset nitrogen spring is provided between the groove wall of the movable groove and the slider.

[0012] As a further embodiment of this utility model, the shaping insert is mounted on the upper pressure plate via a connecting sleeve.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] Due to the above structural design, namely, setting an upper shaping insert, a driving block, and an upper pressure plate on the upper mold base, setting a slider on the upper pressure plate, and setting a shaping insert on the lower surface of the slider; by driving the slider through the driving block, the shaping insert enters between the upper shaping insert and the lower mold insert to complete the precision correction operation of the fully enclosed inner flange surface of the part, which not only has low production cost, but also simple process. Attached Figure Description

[0015] Appendix Figure 1 This is a cross-sectional view of an embodiment of the present utility model;

[0016] Appendix Figure 2 This is a longitudinal cross-sectional view of an embodiment of the present invention.

[0017] The labels in the diagram are as follows:

[0018] 10 - Upper mold, 20 - Lower mold;

[0019] 11-Upper mold base, 12-Upper shaping insert, 13-Drive block, 14-Upper pressure plate, 15-Nitrogen spring;

[0020] 141-Slider, 142-Shaping insert, 143-Reset nitrogen spring, 144-Connecting sleeve;

[0021] 21-Lower mold insert;

[0022] 131-Driving inclined plane;

[0023] 1411 - Passive Inclined Plane. Detailed Implementation

[0024] The embodiments described with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0025] In the description of this application, "several" or "more than" means two or more, unless otherwise explicitly specified. In this application, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0026] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. Example

[0027] like Figure 1 and Figure 2 As shown, this application discloses a precision correction mechanism for the inner flange surface of a fully enclosed part, comprising an upper mold 10 and a lower mold 20.

[0028] The upper mold 10 includes an upper mold base 11, an upper shaping insert 12 and a driving block 13 arranged side by side on the lower surface of the upper mold base 11, and an upper pressure plate 14 disposed between the upper shaping insert 12 and the driving block 13. A nitrogen spring 15 is disposed between the upper mold base 11 and the upper pressure plate 14. A slider 141 that cooperates with the driving block 13 is movably disposed in the upper pressure plate 14. A shaping insert 142 is disposed on the lower surface of the slider 141. The lower mold 20 includes a lower mold insert 21 that cooperates with the shaping insert 142. Through the above structural design, not only is the production cost low, but the process is also simple.

[0029] In operation, the workpiece to be processed is placed on the lower die insert. The upper die moves downward. When the upper pressure plate contacts the lower die insert, the nitrogen spring begins to compress, providing pressure to press the workpiece between the upper pressure plate and the lower die insert. As the upper die continues to move downward, the drive block drives the slider to slide, simultaneously driving the shaping insert into the inner flange hole of the workpiece. That is, the shaping insert is ready to perform precision correction work on the inner flange surface of the workpiece. As the upper die continues to move downward, the shaping insert, together with the upper shaping insert and the lower die insert, performs precision correction work on the inner flange surface of the workpiece.

[0030] Specifically, the drive block 13 has a drive inclined surface 131, and the slider 141 has a passive inclined surface 1411 that cooperates with the drive inclined surface 131. Both the drive inclined surface 131 and the passive inclined surface 1411 are stepped inclined surfaces. During the downward movement of the upper mold, the drive inclined surface 131 and the passive inclined surface 1411 cooperate, and the slider achieves horizontal movement through the vertical movement of the drive block.

[0031] Specifically, the upper pressure plate 14 has a movable groove, in which the slider 141 is disposed. A reset nitrogen spring 143 is disposed between the groove wall of the movable groove and the slider 141. When the slider moves under the action of the driving block, it squeezes the reset nitrogen spring. When the driving block moves upward, the slider resets under the action of the reset nitrogen spring.

[0032] Specifically, the shaping insert 142 is installed on the upper pressure plate 14 via a connecting sleeve 144. The connecting sleeve helps to enhance the connection strength between the shaping insert and the upper pressure plate, reduce loosening caused by vibration or other external forces, and ensure stability and reliability in the production process.

[0033] In summary, this utility model, through the above-described structural design, overcomes the shortcomings of the prior art and features a reasonable structure, low cost, and simple process.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precision correction mechanism for the inner flange surface of a fully enclosed part, comprising an upper mold (10) and a lower mold (20), characterized in that: The upper mold (10) includes an upper mold base (11), an upper shaping insert (12) and a driving block (13) arranged side by side on the lower surface of the upper mold base (11), and an upper pressure plate (14) arranged between the upper shaping insert (12) and the driving block (13). A nitrogen spring (15) is arranged between the upper mold base (11) and the upper pressure plate (14). A slider (141) that cooperates with the driving block (13) is movably arranged in the upper pressure plate (14). A shaping insert (142) is arranged on the lower surface of the slider (141). The lower mold (20) includes at least one lower mold insert (21) that cooperates with the shaping insert (142).

2. The totally enclosed part-inverting flange-face precision straightening mechanism of claim 1 wherein: The drive block (13) has a drive ramp (131), and the slider (141) has a passive ramp (1411) that cooperates with the drive ramp (131).

3. The totally enclosed part-inverting flange-face precision straightening mechanism of claim 2 wherein: Both the driving inclined surface (131) and the passive inclined surface (1411) are stepped inclined surfaces.

4. The totally enclosed part-inverting flange-face precision straightening mechanism of claim 3 wherein: The upper pressure plate (14) has a movable groove, in which the slider (141) is provided, and a reset nitrogen spring (143) is provided between the groove wall of the movable groove and the slider (141).

5. The totally enclosed part-inverting flange-face precision straightening mechanism of claim 4 wherein: The shaping insert (142) is mounted on the upper pressure plate (14) via a connecting sleeve (144).

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