Pipe end side wall notched rotary cutting edge die

Abstract

A rotary cutting die for notching the sidewalls of a round tube includes an upper die (10) and a lower die (20). The upper die (10) includes an upper die base (11) and an upper clamping plate (12). A first insert (13) and a second insert (14) are arranged opposite each other on the side of the upper clamping plate (12) away from the upper die base (11). The lower die (20) includes a lower die base (21) and a lower template (22). A punch (24) is rotatably mounted on the lower template (22). The first insert (13) and the second insert (14) drive the punch (24) to rotate counterclockwise and clockwise, respectively, to complete the rotary cutting operation. The upper die of this invention is provided with a first insert and a second insert, and the lower die is provided with a punch. The first insert and the second insert drive the punch to rotate counterclockwise and clockwise, respectively, to complete the rotary cutting operation. This invention not only has a reasonable structure and low cost, but also achieves precise and efficient cutting, resulting in high product quality.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, and in particular to a rotary cutting die with notches on the side walls of both ends of a round tube. Background Technology

[0002] Currently, with the wide variety of product shapes, deep-drawn products occupy a significant market share, and their appearance requirements are higher than other types of products. During the production and processing of these products, due to material anisotropy, uneven thickness, inaccurate positioning, or uneven die clearance, the top of the drawn workpiece is often uneven. For parts requiring flush and aesthetically pleasing ends, an additional trimming process is needed, typically using a lathe or a specialized trimming machine to remove excess edges from the open end of the workpiece.

[0003] Chinese utility model patent CN205702024U discloses a rotary cutting edge mold structure, including an upper mold base and a lower mold base. A cutting die is fixed below the upper mold base, and a punch is fixed to the lower surface of the cutting die. A spring-loaded punch plate is embedded in the cutting die. A female spiral outer wheel is fixed above the lower mold base, and a male spiral lower template is fitted inside the outer wheel. The lower template is connected to the lower mold base via an air cushion rod. A spring-loaded ejector plate is provided above the lower template, and a cutting punch is embedded inside the spring-loaded ejector plate. The cutting punch is fixed to the lower template, and a positioning plate for positioning the workpiece is provided on the upper surface of the cutting punch. This rotary cutting edge mold structure is complex and costly. Furthermore, the scheme of rotary cutting the workpiece edge by rotating the cutting punch relative to the cutting die requires a precise angular synchronization between the cutting punch and the cutting die; otherwise, uneven cutting, edge tearing, and difficulty in guaranteeing product quality will occur.

[0004] Therefore, existing technologies need to be improved and enhanced. Utility Model Content

[0005] To overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a rotary cutting mold for opening notches on the side walls of both ends of a round tube, which has a reasonable structure, low cost, and high product quality.

[0006] This utility model achieves the above objectives through the following technical means:

[0007] A rotary cutting die for notching the side walls at both ends of a round tube includes an upper die and a lower die.

[0008] The upper mold includes an upper mold base and an upper clamping plate disposed below the upper mold base. A first insert and a second insert are disposed opposite each other on the side of the upper clamping plate away from the upper mold base.

[0009] The lower mold includes a lower mold base and a lower template disposed above the lower mold base. Two springs are disposed between the lower template and the upper clamping plate. A punch is rotatably mounted on the lower template.

[0010] The first insert and the second insert drive the punch to rotate counterclockwise and clockwise respectively to complete the rotary cutting operation.

[0011] As a further embodiment of this utility model, the first insert blade is provided with a first stepped protrusion on the side facing the second insert blade, and the second insert blade is provided with a second stepped protrusion on the side facing the first insert blade.

[0012] As a further embodiment of this utility model, the lower template includes a lower template body and a first strip-shaped protrusion, a second strip-shaped protrusion, and a third strip-shaped protrusion arranged side by side on one side wall of the lower template body. A first working groove that cooperates with the first insert knife is formed between the first strip-shaped protrusion and the second strip-shaped protrusion. A second working groove that cooperates with the second insert knife is formed between the third strip-shaped protrusion and the second strip-shaped protrusion. The punch is rotatably mounted on the second strip-shaped protrusion.

[0013] As a further embodiment of this utility model, an auxiliary lower template is provided on the side of the lower template close to the punch.

[0014] As a further embodiment of this utility model, an insert is provided on the auxiliary lower template.

[0015] As a further embodiment of this utility model, the lower mold base is provided with two outer guide posts, and the upper mold base is provided with two outer guide sleeves that cooperate with the outer guide posts.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] Due to the above structural design, namely, the upper mold is equipped with a first insert and a second insert, and the lower mold is equipped with a punch, the first insert and the second insert drive the punch to rotate counterclockwise and clockwise in turn to complete the rotary cutting operation. This design is not only reasonable and low in cost, but also precise and efficient in the cutting process, resulting in high product quality. Attached Figure Description

[0018] Appendix Figure 1 This is an exploded structural diagram of an embodiment of the present utility model;

[0019] Appendix Figure 2 This is a side view of an embodiment of the present utility model;

[0020] Appendix Figure 3 For the appendix Figure 2 AA section view;

[0021] Appendix Figure 4 For the appendix Figure 2 BB cross-sectional view.

[0022] The labels in the diagram are as follows:

[0023] 10 - Upper mold, 20 - Lower mold;

[0024] 11-Upper mold base, 12-Upper clamping plate, 13-First insert, 14-Second insert;

[0025] 21-Lower mold base, 22-Lower template, 23-Spring, 24-Punch, 25-Auxiliary lower template;

[0026] 131 - First step-shaped protrusion;

[0027] 141 - Second step-like protrusion;

[0028] 221-Lower template body, 222-First strip protrusion, 223-Second strip protrusion, 224-Third strip protrusion, 225-First working groove, 226-Second working groove;

[0029] 251 - Inlay;

[0030] 211 - Outer guide post;

[0031] 111-Outer guide sleeve. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings:

[0033] 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.

[0034] 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.

[0035] 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

[0036] like Figure 1-4 As shown, this application discloses a rotary cutting die for notching the side walls at both ends of a round tube, comprising an upper die 10 and a lower die 20.

[0037] The upper mold 10 includes an upper mold base 11 and an upper clamping plate 12 disposed below the upper mold base 11. A first inserter 13 and a second inserter 14 are disposed opposite each other on the side of the upper clamping plate 12 away from the upper mold base 11.

[0038] The lower mold 20 includes a lower mold base 21 and a lower template 22 disposed above the lower mold base 21. Two springs 23 are disposed between the lower template 22 and the upper clamping plate 12. A punch 24 is rotatably mounted on the lower template 22.

[0039] The first inserter 13 and the second inserter 14 drive the punch 24 to rotate counterclockwise and clockwise respectively to complete the rotary cutting operation. Through the above structural design, the rotary cutting operation is achieved by using the first inserter, the second inserter and the punch in combination. The structure is reasonable and the cost is low. In addition, since the punch is equipped with a cutter that is inserted into the round tube, the punch performs rotary cutting on the side wall of the product. This rotary cutting method can ensure that the stamped parts are accurate and efficient in the edge cutting process and maintain high quality.

[0040] Specifically, the first insert 13 is provided with a first stepped protrusion 131 on the side facing the second insert 14, and the second insert 14 is provided with a second stepped protrusion 141 on the side facing the first insert 13. The first insert drives the punch to rotate counterclockwise for rotary cutting through the first stepped protrusion, and the second insert drives the punch to rotate clockwise for rotary cutting through the second stepped protrusion.

[0041] Specifically, the lower template 22 includes a lower template body 221 and a first strip-shaped protrusion 222, a second strip-shaped protrusion 223 and a third strip-shaped protrusion 224 arranged side by side on one side wall of the lower template body 221. A first working groove 225 that cooperates with the first insert 13 is formed between the first strip-shaped protrusion 222 and the second strip-shaped protrusion 223. A second working groove 226 that cooperates with the second insert 14 is formed between the third strip-shaped protrusion 224 and the second strip-shaped protrusion 223. The punch 24 is rotatably mounted on the second strip-shaped protrusion 223.

[0042] Specifically, an auxiliary lower template 25 is provided on the side of the lower template 22 near the punch 24, and an insert 251 is provided on the auxiliary lower template 25 for supporting the product.

[0043] When this utility model is in operation, the round tube is first inserted into the center of the insert and positioned by the cutter on the punch; the upper die moves downward, and the first cutter and the second cutter drive the punch to rotate counterclockwise and clockwise in turn to complete the notch cutting operation on the side wall of the round tube; the upper die moves upward, and the first cutter and the second cutter drive the punch to reset, take out the product, and repeat the cycle.

[0044] Specifically, the lower mold base 21 is provided with two outer guide posts 211, and the upper mold base 11 is provided with two outer guide sleeves 111 that cooperate with the outer guide posts 211, so as to ensure that the upper mold and the lower mold are accurately aligned and reduce off-center load and position deviation.

[0045] 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 precise and efficient edge cutting.

[0046] 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 rotary cutting die for notching the side walls at both ends of a round tube, comprising an upper die (10) and a lower die (20), characterized in that: The upper mold (10) includes an upper mold base (11) and an upper clamping plate (12) disposed below the upper mold base (11). A first inserter (13) and a second inserter (14) are disposed opposite each other on the side of the upper clamping plate (12) away from the upper mold base (11). The lower mold (20) includes a lower mold base (21) and a lower template (22) disposed above the lower mold base (21). Two springs (23) are disposed between the lower template (22) and the upper clamping plate (12). A punch (24) is rotatably mounted on the lower template (22). The first inserter (13) and the second inserter (14) drive the punch (24) to rotate counterclockwise and clockwise respectively to complete the rotary cutting operation.

2. The die as claimed in claim 1, wherein: The first insert (13) has a first stepped protrusion (131) on the side facing the second insert (14), and the second insert (14) has a second stepped protrusion (141) on the side facing the first insert (13).

3. The die as defined in claim 2 wherein: The lower template (22) includes a lower template body (221) and a first strip protrusion (222), a second strip protrusion (223) and a third strip protrusion (224) arranged side by side on one side wall of the lower template body (221). A first working groove (225) that cooperates with the first insert (13) is formed between the first strip protrusion (222) and the second strip protrusion (223). A second working groove (226) that cooperates with the second insert (14) is formed between the third strip protrusion (224) and the second strip protrusion (223). The punch (24) is rotatably mounted on the second strip protrusion (223).

4. The die as defined in claim 3 wherein: An auxiliary lower template (25) is provided on the side of the lower template (22) near the punch (24).

5. The die as defined in claim 4 wherein: An insert (251) is provided on the auxiliary lower template (25).

6. The die as defined in claim 5 wherein: The lower mold base (21) is provided with two outer guide posts (211), and the upper mold base (11) is provided with two outer guide sleeves (111) that cooperate with the outer guide posts (211).

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