Die with trimming and shaping functions

Abstract

The utility model discloses a die with trimming and shaping functions simultaneously, which relates to the field of stamping processing and comprises a lower die holder, an upper die holder opposite to the lower die holder, a punch mounted on the upper die holder and a male die mounted on the lower die holder. The upper die base and the lower die base are driven by an external mechanism to do relative reciprocating motion in the vertical direction. The punch and the upper die base move synchronously and are matched with the male die in an aligned mode. The male die is provided with a first convex part and at least one second convex part positioned on the side edge of the first convex part; the first convex part and the second convex part are opposite to form a vertical working groove opposite to the punch, the size of the working groove is matched with that of the punch, and when the punch is matched with the male die, the punch is inserted into the working groove. According to the die, the trimming process and the shaping process are integrated, the production steps can be greatly reduced, the machining efficiency is improved, meanwhile, the number of dies and the operation frequency are reduced, and therefore the equipment cost and the labor cost are reduced.

Description

Technical Field

[0001] The present application relates to the field of stamping processing, and in particular to a mold having both trimming and shaping functions. Background Art

[0002] In industrial production, especially for the processing of stamping parts, trimming and shaping (usually bending) are two very important steps. Stamping parts are parts that are processed into specific shapes of metal materials through stamping process, and are widely used in automobile, electronics, home appliances and other industries. In order to ensure that the stamping parts meet the design specifications and have good performance, they need to be trimmed and shaped. Trimming refers to the use of trimming dies to remove excess material after the initial forming of the stamping parts to make its contour meet the design requirements. The trimming process can remove defects such as burrs and flash to ensure the appearance quality and flatness of the product. Shaping (usually bending) refers to the use of shaping dies to further process the stamping parts after trimming is completed to achieve the final product shape and size requirements. The shaping process can include bending, flattening, forming and other steps to ensure that the product has good mechanical properties and structural strength.

[0003] At present, these two processes are usually carried out separately. Figure 1 As shown in FIG. 1 , a set of trimming dies is first used to trim the stamped part to remove excess material so that its contour meets the design requirements; then, as shown in FIG. Figure 2 As shown, another set of shaping dies is used to shape (e.g., bend) the trimmed stamping parts to achieve the final product shape. Although this traditional processing method can achieve the purpose of trimming and shaping, it has the following shortcomings: the process is cumbersome, and trimming and shaping require two sets of dies and two independent processes, which increases the complexity of the production process. Each process requires independent clamping and positioning, resulting in many operating steps. The time cost is high, and each process requires independent clamping and positioning, resulting in a long production cycle. The separation of the two-step process requires multiple product transfers and repositioning in the middle, which increases the production time. The labor cost is high, and each process conversion requires operators to adjust and operate, which increases the labor cost. Frequent mold replacement and product adjustment require highly qualified operators, which increases the investment in human resources. The equipment cost is high, and two sets of molds need to be purchased and maintained, which increases the equipment investment and maintenance costs. The manufacture and maintenance of each set of molds require a large amount of capital investment, which increases the operating cost of the enterprise. Precision control is difficult, and due to the conversion between processes, the product positioning may be inaccurate, thus affecting the quality of the final product. Each repositioning may produce cumulative errors, affecting the consistency and precision of the product.

[0004] The existing mold structure can only realize a single function, and the corresponding function is not designed in the structure, and it is impossible to integrate the two processes of trimming and shaping.

[0005] In order to solve the above problems and improve production efficiency and product quality, it is of great significance and necessity to develop a trimming and shaping integrated mold. Utility Model Content

[0006] The purpose of the present application is to overcome at least one of the shortcomings of the prior art and to provide a mold having both trimming and shaping functions. The mold can significantly reduce the production steps and improve processing efficiency by integrating the trimming and shaping processes, while reducing the number of molds and the number of operations, thereby reducing equipment costs and labor costs.

[0007] To achieve the above objectives, the present application discloses a mold having both trimming and shaping functions, including a lower mold base, an upper mold base opposite to the lower mold base, a punch installed on the upper mold base, and a punch installed on the lower mold base.

[0008] The specific structure is as follows:

[0009] The upper die base and the lower die base reciprocate relative to each other in the vertical direction under the drive of an external mechanism;

[0010] The punch moves synchronously with the upper die seat and cooperates with the punch;

[0011] The male mold has a first convex portion and at least one second convex portion located on the side of the first convex portion; the first convex portion and the second convex portion are opposite to each other to form a vertical working groove opposite to the punch, the size of the working groove is suitable for the punch, and when the punch cooperates with the male mold, the punch is inserted into the working groove;

[0012] The side of the punch close to the second convex portion is a trimming side, and a sharp first cutting edge for trimming is formed on the bottom of the punch on this side. In contrast, the second convex portion is provided with a second cutting edge cooperating with the first cutting edge at the outer side of the upper end surface;

[0013] The side of the punch close to the first convex portion is a shaping side, and the bottom of the punch has a first forming fillet on this side. Conversely, a second forming fillet matching the first forming fillet is provided on the opposite surface of the first convex portion and the punch.

[0014] Further:

[0015] An upper die plate is mounted on the upper die base, and a punch is mounted on the upper die plate and is indirectly fixed on the upper die base.

[0016] At least one positioning piece is installed on the upper die seat for pressing and positioning the workpiece during processing.

[0017] The second convex part is partially concave on the side surface matched with the first convex part, so that the lower part of the working groove is enlarged and the waste material after trimming is discharged conveniently.

[0018] The bottom of the working tank is provided with a discharge port.

[0019] Compared with the prior art, the present invention has at least one of the following beneficial effects:

[0020] 1. Reduce production steps: By integrating the trimming and shaping processes into the same mold, the production steps are greatly reduced.

[0021] 1. Improve processing efficiency: reduce the number of clamping and positioning, thereby shortening the production cycle.

[0022] 3. Reduce equipment costs: Only one set of molds is needed, which reduces the purchase and maintenance costs of molds.

[0023] 4. Reduce labor costs: Reduce the number of operations and adjustment frequency of operators, and reduce labor costs.

[0024] 5. Improve product accuracy: Reduce conversion and repositioning between processes, avoid cumulative errors, and improve product consistency.

[0025] The above-listed beneficial effects are not exhaustive of all advantages. Other potential beneficial effects and detailed technical implementations will be further disclosed in the examples or other description parts of this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] After reading the following detailed description in conjunction with the accompanying drawings, you will better understand the various aspects of the present disclosure. The positions, sizes, and ranges of various structures shown in the accompanying drawings sometimes do not represent the actual positions, sizes, and ranges. In the accompanying drawings:

[0027] Figure 1 It is a structural schematic diagram of a trimming die in the prior art.

[0028] Figure 2 It is a structural schematic diagram of a shaping mold in the prior art.

[0029] Figure 3 It is a structural schematic diagram of an embodiment disclosed in this application. DETAILED DESCRIPTION

[0030] The present disclosure will be described below with reference to the accompanying drawings, which illustrate several embodiments of the present disclosure. However, it should be understood that the present disclosure can be presented in a variety of different ways and is not limited to the embodiments described below; in fact, the embodiments described below are intended to make the disclosure of the present disclosure more complete and fully illustrate the scope of protection of the present disclosure to those skilled in the art. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide more additional embodiments.

[0031] It should be understood that the same reference numerals represent the same elements throughout the drawings. In the drawings, the dimensions of certain features may be distorted for clarity.

[0032] It should be understood that the terms used in the specification are only used to describe specific embodiments and are not intended to limit the present disclosure. All terms (including technical terms and scientific terms) used in the specification have the meanings commonly understood by those skilled in the art unless otherwise defined. For the sake of brevity and / or clarity, the techniques, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the specification.

[0033] The singular forms "a", "said" and "the" used in the specification include plural forms unless clearly indicated. The terms "include", "comprise" and "contain" used in the specification indicate the presence of the claimed features, but do not exclude the presence of one or more other features. The term "and / or" used in the specification includes any and all combinations of one or more of the relevant listed items. Example

[0034] Figure 3 An exemplary structure for achieving the technical purpose of the present application is shown, specifically a mold with trimming and shaping functions, which is intended to improve the processing efficiency of stamping parts, reduce production steps and costs, and improve product quality.

[0035] The mold comprises a lower die base 1, an upper die base 2, a punch 3, and a punch 4.

[0036] Specifically, the lower die base 1 is the basic component of the entire die, and is made of high-strength alloy steel to ensure that it has sufficient strength and rigidity to support the overall structure of the die.

[0037] During implementation, the lower die base 1 is fixedly connected to a workbench of a punch press or other equipment (not shown in the figure) by bolts or other fixing devices to ensure stability during the processing. A punch 4 for achieving the working purpose is fixedly installed on the lower die base 1, and the punch 4 will be described in detail in the following content.

[0038] In this embodiment, the upper die base 2 is located above the lower die base 1, and reciprocates in the vertical direction relative to the lower die base 1 through an external driving mechanism (such as a hydraulic cylinder or mechanical driving device of a punch press). Like the upper and lower die bases 1, the upper die base 2 is usually made of high-strength alloy steel or cast iron to ensure that it will not deform during frequent movements.

[0039] The movement of the upper die base 2 drives other components installed thereon to move synchronously, thereby realizing the processing of the workpiece.

[0040] In order to achieve stable relative movement between the upper die base 2 and the lower die base 1, a guide component (not shown in the figure) is installed between the two. The guide component is an important connection and guiding device between the upper die base 2 and the lower die base 1. The guide component is usually composed of a guide post and a guide sleeve. The guide post is fixed on the lower die base 1, and the guide sleeve is fixed on the upper die base 2. There is a precise fit between the guide post and the guide sleeve to ensure that the upper die base 2 maintains stable and precise guidance during the reciprocating motion in the vertical direction. The guide component is made of high-strength, wear-resistant alloy steel to ensure that it maintains stable performance and a long service life during frequent use. The presence of the guide component can effectively prevent the upper die base 2 and the lower die base 1 from tilting or offsetting during the movement, thereby ensuring the working accuracy of the mold and the processing quality of the workpiece.

[0041] In this embodiment, as a specific description of the punch 4, the punch 4 is fixedly mounted on the lower die base 1 and is aligned with the punch 3. The punch 4 is made of high-hardness tool steel and has good wear resistance and impact resistance. The design of the punch 4 includes a first convex portion 8 and at least one second convex portion 9 located on the side of the first convex portion 8. It should be noted that in the drawings of this embodiment, the second convex portion 9 and the punch 3 are shown as two.

[0042] In the above structure, the first convex part 8 and the second convex part 9 form a working groove 10, and the size of the working groove 10 is suitable for the punch 3. When the punch 3 cooperates with the punch 4, the punch 3 is inserted into the working groove 10 to achieve the dual functions of trimming and shaping.

[0043] In this embodiment, the punch 3 is a key component installed on the upper die base 2 and moves synchronously with the upper die base 2. It is specifically installed on the upper die plate 5 fixed to the upper die base 2, and then, is indirectly fixed on the upper die base 2 and moves synchronously with the upper die base 2.

[0044] More specifically, the upper die plate 5 is mounted on the upper die base 2 and is a fixed platform for the punch 3 and other components. The upper die plate 5 is usually made of high-strength alloy steel or cast iron, and its design must ensure the stability and precise positioning of the punch 3. The upper die plate 4 is tightly connected to the upper die base 2 by bolts or other fixing devices to ensure that it will not loosen or shift during the stamping process.

[0045] In terms of material, the punch 3 is made of high-hardness tool steel and is heat-treated to improve its hardness and wear resistance.

[0046] Structurally, the punch 3 is designed to include two main functional areas: a trimming side 6 and a shaping side 7. The trimming side 6 is located on the side of the punch 3 close to the second convex portion 9, and a sharp first cutting edge 11 is formed at its bottom. On the other hand, a second cutting edge 12 cooperating with the first cutting edge 11 of the punch 3 is provided on the outer side of the upper end surface of the second convex portion 8 to achieve trimming of the workpiece.

[0047] In the punch 4, the shaping side 7 is located on the side of the punch close to the first protrusion 8, and its bottom has a first forming radius 13. Conversely, a second forming radius 14 that cooperates with the first forming radius 13 is provided on the opposite surface of the first protrusion 8 and the punch 3 to achieve the shaping of the workpiece.

[0048] In this embodiment, in order to better achieve its purpose, a positioning member 15 is also provided. The positioning member 15 is installed on the upper die seat 2 and is used to press and position the workpiece during processing. The positioning member 15 is usually made of high-hardness alloy steel and has good wear resistance. The design and installation of the positioning member 15 must ensure that the workpiece maintains a precise position during the processing to prevent processing errors caused by the movement of the workpiece.

[0049] It should be understood that the positioning member 15 can be an elastic positioning member or a fixed positioning member during implementation. Depending on the specific structure of the positioning member 15, when working, the positioning member 15 presses the workpiece by hard top pressure or elastic device to ensure that the position of the workpiece remains unchanged during the entire processing process.

[0050] In this embodiment, as a necessary design for achieving continuous production, a discharge port (not shown in the figure) is designed at the bottom of the working tank 10 for discharging the waste after trimming. The design of the discharge port must ensure that the waste can be discharged smoothly to avoid clogging during the processing. The size and position of the discharge port are designed according to the actual processing requirements.

[0051] In order to achieve better discharge, the second convex portion 8 has a concave design on the side surface, so that the lower part of the working groove is enlarged and the diameter is reduced to facilitate the smooth discharge of waste.

[0052] As a further explanation of this embodiment, during operation, the workpiece is first placed on the punch 4 on the lower die base 1. The upper die base 2 moves downward under the action of the external driving mechanism, and the positioning member 15 first contacts the workpiece to press and position the workpiece.

[0053] Synchronously, the upper die holder 2 drives the punch 3 to process the workpiece. The trimming side 6 of the punch 3 first cooperates with the second convex portion 9 of the punch 4, and the trimming of the workpiece is completed by the relative movement of the first cutting edge 11 and the second cutting edge 12 to remove excess material. While completing the trimming, the shaping side 7 of the punch 3 cooperates with the first convex portion 8 of the punch 4, and the bending and shaping operation of the workpiece is completed by the relative movement of the first forming fillet 13 and the second forming fillet 14.

[0054] The trimmed waste is discharged through the discharge port at the bottom of the working tank 10 to keep the mold clean and in normal operation.

[0055] Through this design, the mold can complete the trimming and shaping processes in one operation, greatly improving production efficiency, reducing production steps and costs, while ensuring product accuracy and quality.

[0056] Although the exemplary embodiments of the present disclosure have been described, it should be understood by those skilled in the art that various changes and modifications can be made to the exemplary embodiments of the present disclosure without departing from the spirit and scope of the present disclosure in essence. Therefore, all changes and modifications are included in the protection scope of the present disclosure as defined.

Claims

1. The mold has both trimming and shaping functions, characterized in that: include: A lower die base, an upper die base opposite to the lower die base, a punch mounted on the upper die base, and a punch mounted on the lower die base, wherein the upper die base and the lower die base reciprocate relative to each other in a vertical direction under the drive of an external mechanism; The punch moves synchronously with the upper die seat and cooperates with the punch; The male mold has a first convex portion and at least one second convex portion located on the side of the first convex portion; the first convex portion and the second convex portion are opposite to each other to form a vertical working groove opposite to the punch, the size of the working groove is suitable for the punch, and when the punch cooperates with the male mold, the punch is inserted into the working groove; The side of the punch close to the second convex portion is a trimming side, and a sharp first cutting edge for trimming is formed on the bottom of the punch on this side. In contrast, the second convex portion is provided with a second cutting edge cooperating with the first cutting edge at the outer side of the upper end surface; The side of the punch close to the first convex portion is a shaping side, and the bottom of the punch has a first forming fillet on this side. Conversely, a second forming fillet matching the first forming fillet is provided on the opposite surface of the first convex portion and the punch.

2. The mold having both trimming and shaping functions as claimed in claim 1, characterized in that: An upper die plate is mounted on the upper die base, and a punch is mounted on the upper die plate and is indirectly fixed on the upper die base.

3. The mold having both trimming and shaping functions as claimed in claim 1, characterized in that: At least one positioning piece is installed on the upper die seat for pressing and positioning the workpiece during processing.

4. The mold having both trimming and shaping functions as claimed in claim 1, characterized in that: The second convex part is partially concave on the side surface matched with the first convex part, so that the lower part of the working groove is enlarged and the waste material after trimming is discharged conveniently.

5. The mold having both trimming and shaping functions as claimed in claim 1, characterized in that: The bottom of the working tank is provided with a discharge port.

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