A matching method, apparatus, equipment, and storage medium for stamping rivets.

Abstract

A matching method for a stamping riveting die includes the following steps: S1: Quantify the dimensions of the head end of the die part; S2: Calculate the theoretical volume V1 of the head end of the die part based on its dimensions; S3: Introduce a correction coefficient K based on the manufacturing precision or measurement error of the head end of the die part, and obtain the corrected volume V2 = K * V1 of the head end of the die part; S4: Preset the dimensions of the forming chamber of the stamping riveting die, and obtain the matching volume V3 of the forming chamber under the corresponding dimensions; S5: Determine the relationship between the matching volume V3 of the forming chamber and the corrected volume V2 of the head end of the die part; if the matching volume V3 of the forming chamber is within the allowable deviation range based on the corrected volume V2 of the head end of the die part, proceed to S7; if the matching volume V3 of the forming chamber exceeds the allowable deviation range based on the corrected volume V2 of the head end of the die part, proceed to S6; S6: Change the dimensions of the forming chamber, obtain the changed matching volume V3, and return to S5; S7: Complete the matching of the stamping riveting die.

Description

Technical Field

[0001] This application relates to a matching method, apparatus, equipment, and storage medium for stamping rivet dies. Background Technology

[0002] In the field of riveting, the parts used for riveting typically include the riveted part and the die end part. The riveted part is provided with a pre-drilled hole for the die end part to pass through. The die end part includes a head end and an upsetting part. The riveting device typically includes a stamping die and a pressure device. The stamping die provides a forming chamber for the die end part. Before riveting, the riveted part is placed on the top surface of the stamping die and on the upper side of the forming chamber. The head end of the die end part is placed in the forming chamber, and the upsetting part passes through the pre-drilled hole. During riveting, the pressure device acts on the upsetting part of the die end part, so that the head end of the die end part fills the forming chamber. The upsetting part deforms and expands under pressure and is fastened together with the head end of the die end part to the spring, so as to achieve the fastening of the die end part to the riveted part.

[0003] Currently, the matching of stamping dies and riveted parts requires high precision and relies heavily on the personal experience of technicians. If the matching tolerance is large, it can easily lead to a riveting gap between the head end of the die and the riveted part, resulting in poor riveting. For example, consider a contact and a spring. Figure 1A and Figure 1B As shown, when there is a riveting gap between the contact as a mold end part and the spring, when the current passes through the contact spring with insufficient riveting tightness, a high resistance area will be generated at the connection between the contact and the spring and the temperature will rise rapidly, eventually causing the relay to fail. This is caused by the contact overheating, the deterioration of the spring elasticity, and ultimately the early welding failure of the product's electrical life.

[0004] In view of this, the inventor conducted in-depth research on the aforementioned deficiencies in the prior art, which led to the creation of this case. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a matching method, device, equipment and storage medium for stamping riveting dies. Based on the size of the head end of the die end part, it provides a reference for the early design of stamping riveting dies and a reference for the later production selection. By quantifying the data, it avoids blind matching, effectively improves the problem of poor riveting gap between the die end part and the riveted part, and improves the production quality.

[0006] A first aspect of the present invention provides a method for matching stamping riveting dies, comprising:

[0007] S1: Dimensions of the head end of the quantitative mold part;

[0008] S2: Calculate the theoretical volume V1 of the head end of the mold part based on the dimensions of the head end of the mold part;

[0009] S3: Based on the manufacturing precision or measurement error of the head end of the mold part, introduce a correction coefficient K to obtain the correction volume V2 = K * V1 of the head end of the mold part.

[0010] S4: Preset the size of the forming cavity of the stamping and riveting die, and obtain the matching volume V3 of the forming cavity under the corresponding size;

[0011] S5: Determine the relationship between the matching volume V3 of the molding chamber and the corrected volume V2 of the head end of the mold end part;

[0012] If the matching volume V3 of the molding chamber is within the allowable deviation range based on the corrected volume V2 of the head end of the mold end part, then proceed to S7;

[0013] If the matching volume V3 of the molding chamber exceeds the allowable deviation range based on the corrected volume V2 of the head end of the mold end part, then proceed to S6.

[0014] S6: Change the size of the molding chamber, obtain the changed matching volume V3, and return to S5;

[0015] S7: Complete the matching of the stamping and riveting die.

[0016] Using the above methods, the dimensions of the head end of the die part and the dimensions of the forming cavity of the stamping riveting die were quantified, achieving a precise match between the matching volume V3 of the forming cavity of the stamping riveting die and the corrected volume V2 of the head end of the die part. This avoids empirical adaptation, effectively guides the initial dimension design of the forming cavity and the subsequent dimension selection, and effectively improves production quality.

[0017] A second aspect of the present invention provides a stamping riveting die matching device, comprising:

[0018] The mold end part data module is configured to input the head end dimension and correction factor K of the mold end part, and generate the theoretical volume V1 and the corrected volume of the head end of the mold end part.

[0019]

[0020] The molding chamber calculation module is configured to take the dimensions of the molding chamber as input and generate the matching volume of the molding chamber.

[0021]

[0022] Using the above-mentioned device, the corrected volume V2 of the head end of the die part and the matching volume V3 of the forming chamber can be automatically calculated based on the input dimensions of the head end of the die part and the dimensions of the forming chamber, respectively. Then, based on the deviation between the corrected volume V2 and the matching volume V3, the dimensions of the forming chamber are changed, which quantifies and simplifies the adaptation between the stamping die and the die part, saves engineers' design time, and saves material waste caused by the mismatch between the stamping die and the die part.

[0023] A third aspect of the present invention provides an electronic device including a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that the processor, when executing the program, implements the method described in the first aspect.

[0024] A fourth aspect of the present invention provides a storage medium storing a computer program that, when executed by a processor, implements the stamping and riveting die matching method as described in the first aspect. Attached Figure Description

[0025] The specific description given as a non-limiting example better explains what this application includes and how it can be implemented; furthermore, the description refers to the accompanying drawings, in which:

[0026] Figure 1A This is a schematic diagram of poor contact riveting gap under a microscope, provided in an embodiment of this application.

[0027] Figure 1B This is a schematic diagram of qualified contact riveting under a microscope provided in an embodiment of this application;

[0028] Figure 2 This is a flowchart of the matching method provided in the embodiments of this application;

[0029] Figure 3A This is a schematic diagram showing the dimensions of the contact head end provided in an embodiment of this application;

[0030] Figure 3B This is a schematic diagram of the dimensions of the molding chamber provided in an embodiment of this application;

[0031] Figure 4 This is a schematic diagram illustrating the matching principle between the contact and the stamping die provided in the embodiments of this application;

[0032] Figure 5 This is a structural block diagram of the matching device provided in the embodiments of this application;

[0033] Figure 6 This is an interface diagram of the matching device provided in an embodiment of this application;

[0034] Figure 7 This is a block diagram of the electronic device structure provided in the embodiments of this application;

[0035] Figure 8 This is a block diagram of the storage medium structure provided in the embodiments of this application.

[0036] Label Explanation:

[0037] 1. Stamping and riveting die; 2. Forming chamber; 3. Contact point; 4. Spring; Detailed Implementation

[0038] The present application will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] It is readily understood that, based on the technical solution of this application, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this application. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this application and should not be considered as the entirety of this application or as limitations or restrictions on the technical solution of this application.

[0040] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the structures shown in the accompanying drawings. They are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0041] Example 1

[0042] The stamping riveting die 1 of the present invention is configured to provide a forming chamber 2 for the head end of the die-end part. Before riveting, the part to be riveted is placed on the top surface of the stamping riveting die 1, the head end of the die-end part is placed in the forming chamber 2, and the upsetting part protrudes through a pre-drilled hole. During riveting, a pressure device acts on the die-end part, causing the head end of the die-end part to fill the forming chamber 2. Under pressure, the outer contour of the upsetting part deforms and expands, and together with the head end of the die-end part, it is fastened to the part to be riveted, thereby achieving the fastening of the die-end part to the part to be riveted. The die-end part of the present invention includes a rotating forged part such as a contact 3. In the embodiment, the contact 3 is used as an example for detailed description. Correspondingly, the riveted part is a spring 4. The contact 3 is fixed to the spring 4 by riveting deformation. The structure of the spring 4 and the contact 3 is widely used in relays and other switching electrical appliances.

[0043] like Figure 2 As shown, the matching method specifically includes the following steps:

[0044] S1: Quantify the dimensions of the head end of the die-end component; the quantification of the head end of the die-end component is further divided into quantification based on the contact point 3 drawing and quantification based on the actual contact point 3, depending on the matching requirements of the stamping die 1. In the design matching application of the stamping die 1, the quantification of the head end dimension of the die-end component refers to obtaining the dimension defined in the die-end component head end drawing. In the production matching application of the stamping die 1, the quantification of the head end dimension of the die-end component refers to measuring the dimension of the head end of the die-end component to be put into production, i.e., using the actual object as the selected reference. Figure 3A As shown in Figure 3A, in this embodiment, the mold end part is contact 3. Contact 3 is generally short and cylindrical, including a head end and a rod end. The mating surface between the head end and the rod end is an interface. The dimensions of the head end of contact 3 include head height T, first spherical radius SR1, first transition fillet R1, head diameter D1, and first demolding angle α1. Referring to Figure 3A, the head height T refers to the distance between the interface and the furthest point of the head end of contact 3 away from the interface, and the first spherical radius SR1 refers to the distance between the contact 3 and the furthest point of the head end away from the interface. One end of the interface is provided with a first spherical arc surface, the radius of the first spherical arc surface is the first spherical radius SR1, the first transition fillet R1 refers to the fillet radius of the top edge of the head end of the contact 3, the head diameter D1 refers to the maximum diameter of the head end of the contact 3, and the first demolding angle α1 refers to the inclination angle of the side wall of the head end of the contact 3 in the demolding direction. The head height T and the head diameter D1 can be measured with a micrometer, and the first spherical radius SR1, the first transition fillet R1, and the first demolding angle α1 can be measured with the aid of an industrial measuring microscope.

[0045] S2: Based on the dimensions of the head end of the mold part, calculate the theoretical volume V1 of the head end of the mold part. Using the dimensions of the contact point 3 head end set in S1, the outer contour of the contact point 3 head end is basically defined, such as... Figure 3A As shown, a first coordinate system O1X1Y1 is established with the axis at the end of the rod at the interface in S1 as the origin, extending radially towards the end of the rod and axially towards the head end. The theoretical volume V1 of the head end of contact 3 can then be calculated using an integral algorithm. Specifically, the theoretical volume of contact 3 is calculated using integration.

[0046]

[0047] S3: The theoretical volume V1 calculated from S2 does not take into account the errors in actual production and measurement. During production, the shape of the mold end part is often not full. Therefore, based on the manufacturing precision or measurement error of the mold end part's head, a correction coefficient K is introduced to obtain the corrected volume V2 = K * V1 of the mold end part's head. The corrected volume refers to the actual volume of the mold end part's head, and the correction coefficient K is the ratio of the actual volume of the mold end part to the measured volume. Since the head of contact 3 is irregularly shaped, a method such as the drainage method is used to calculate the actual volume of the mold end part to obtain the correction coefficient K. The value of the correction coefficient K is closely related to the head diameter D1 of contact 3. Experiments show that, taking contact 3 with a head diameter in the range of 2-4 mm as an example, k = 0.94 is applicable.

[0048] S4: Preset the dimensions of the forming chamber 2 of the stamping riveting die 1, and obtain the matching volume V3 of the forming chamber 2 under the corresponding dimensions. When the stamping riveting die 1 is used for design matching, the preset dimensions of the forming chamber 2 of the stamping riveting die 1 refer to the manufacturing dimensions of the forming chamber 2 designed based on the mold design tolerance and the dimensions of the head end of the mold end part. When the stamping riveting die 1 is used for production matching, the preset dimensions of the forming chamber 2 of the stamping riveting die 1 refer to the configuration of at least two stamping riveting dies 1, each stamping riveting die 1 having a different size of forming chamber 2. In this embodiment, three stamping riveting dies 1 are provided, and the forming chamber 2 of each stamping riveting die 1 has different production sizes, namely large, medium, and small production sizes, so each stamping riveting die 1 has a different matching volume V3. Specifically, as shown in the figure... Figure 3B As shown, the forming chamber 2 of the stamping and riveting die 1 is generally cylindrical. The dimensions of the forming chamber 2 include the cavity depth H, cavity diameter D2, second spherical radius SR2, second transition fillet R2, and second demolding angle α2. The cavity depth H refers to the distance between the upper surface of the stamping and riveting die 1 and the deepest point of the cavity. The cavity diameter D2 refers to the maximum diameter of the cavity along its depth direction. The second spherical radius SR2 refers to the second spherical arc surface provided on the bottom surface of the cavity, and the radius of the second spherical arc surface is the second spherical radius SR2. The second transition fillet R2 refers to the fillet radius of the edge of the bottom surface of the cavity. The second demolding angle α2 refers to the inclination angle of the inner wall of the forming chamber 2 in the demolding direction. The dimensions of the forming chamber 2 basically define the inner contour of the forming chamber 2, such as... Figure 3B As shown, a second coordinate system O2X2Y2 is established with the intersection of the forming cavity and the central axis with the upper surface of the stamping die 1 as the origin, extending radially towards the forming cavity 2 and axially towards the bottom of the forming cavity 2. Therefore, the matching volume V3 of the forming cavity 2 can be calculated by the integral algorithm. Specifically, the matching volume of the stamping die 1 is calculated by integration.

[0049]

[0050] S5: Determine the relationship between the matching volume V3 of the molding chamber 2 and the corrected volume V2 of the head end of the mold end part; such as Figure 4 As shown, based on the principle that the volume remains unchanged during the riveting process of contact 3, the corrected volume V2 at the head end of the matching contact 3 is matched with the matching volume V3 of the molding chamber 2. If the matching volume V3 of the molding chamber 2 is within the allowable deviation range based on the corrected volume V2 at the head end of the mold part, that is, the corrected volume V2 = the matching volume V3, which is basically within the allowable deviation range, then proceed to S7;

[0051] If the matching volume V3 of the molding chamber 2 exceeds the allowable deviation range based on the correction volume V2 of the head end of the mold end part, that is, the correction volume V2 does not match the matching volume V3, then proceed to S6.

[0052] In the case where the stamping die 1 is used for design matching, the allowable deviation is the design deviation, that is, the manufacturing precision limit and the design tolerance of the head end of the contact 3. Therefore, the stamping die 1 also has a design deviation. Within the design deviation, it is guaranteed at least that the correction volume V2 of the contact 3 rivet is equal to the matching volume V3 of the forming chamber 2.

[0053] When the stamping riveting die 1 is used for production matching, the allowable deviation is the production deviation. The tolerance range of the production deviation is smaller than the tolerance range of the design deviation. It can be understood that different batches of contacts 3 may still have different contact 3 head end dimensions even if they meet the contact 3 design tolerance. The contact 3 head end dimensions of the same batch may cause their corrected volume V2 to be uniformly biased towards the lower limit, or uniformly biased towards the upper limit, or uniformly centered. In this embodiment, as described in S3, three stamping riveting dies 1 are provided for production, and the forming chambers of the three stamping riveting dies 1 are... 2 has three production sizes: large, medium, and small. Therefore, the closer the matching volume V3 of the stamping and riveting die 1 used for production is to the corrected volume V2 of the production batch, that is, when the largest production size of the forming chamber 2 corresponds to the upper limit of the contact 3 head end size, the medium production size of the forming chamber 2 corresponds to the middle contact 3 head end size, and the smallest production size of the forming chamber 2 corresponds to the lower limit of the contact 3 head end size, the probability of a riveting gap between the contact 3 and the spring 4 due to the mismatch between the contact 3 head end size and the forming inner cavity size will be controlled to the lowest level.

[0054] S6: Change the size of the forming chamber 2 to obtain the changed matching volume V3, and return to S5. That is, S5 and S6 form an adjustment closed loop. The matching volume V3 adjusted in S6 is returned to S5 and compared with the corrected volume V2 at the head end of the contact 3. If the matching volume V3 and the corrected volume V2 in S5 do not match, the adjustment is performed again in S6 until the matching volume V3 and the corrected volume V2 match. Specifically, when the stamping die 1 is used for design matching, changing the size of the forming chamber 2 to obtain the changed matching volume V3 includes adjusting the manufacturing size of the forming chamber 2 based on the die design tolerance to change the size of the matching volume V3 of the forming chamber 2. When the stamping riveting die 1 is used for production matching, changing the size of the forming chamber 2 to obtain the changed matching volume V3 includes replacing the stamping riveting die 1 so that the updated stamping riveting die 1 has a different size of forming chamber 2, and obtaining the matching volume V3 of the replaced forming chamber 2. In this embodiment, if three types of stamping riveting dies 1 with different production sizes of forming chamber 2 are provided (large, medium and small), when the largest stamping riveting die 1 is not suitable for the head end of the contact 3 to be produced, the smaller size stamping riveting die 1 is replaced.

[0055] S7: Complete the matching of stamping and riveting die 1.

[0056] Compared to existing methods, such as the research on the matching relationship between the dimensions of the riveting die cavity and the contact head in the fifth issue of the 2018 journal "Electrical Materials," the first approach relies on empirically adjusting the dimensions of various contact head dimensions to obtain the dimensions of the forming cavity 2. This lacks in-depth analysis of the underlying principles and does not discuss the overall volume matching, leaning towards empirical observation and failing to provide effective design guidance. Secondly, the journal's method for obtaining the contact head dimensions involves measuring a small batch of randomly selected contacts 3 from each batch. Since the dimensions of contacts 3 vary between batches, the data obtained using this method has poor generalizability. In contrast, this application uses the above method to quantify the dimensions of the head end of the die part and the dimensions of the forming cavity of the stamping riveting die 1. This achieves a precise match between the matching volume V3 of the forming cavity 2 of the stamping riveting die 1 and the corrected volume V2 of the head end of the die part, avoiding empirical adaptation and effectively guiding the early-stage dimension design and later-stage dimension selection of the forming cavity. This significantly improves production quality and reduces the production cost of defective products. For different batches of contact 3, the choice of dimensions for the stamping die 1 in the later stages will have a significant impact on the yield rate. For example, in the case of mass production of 100,000 units, the theoretical volume V1 of contact 3 is at a smaller lower limit, while the matching volume V3 of the forming chamber 2 is at a larger upper limit. Under normal equipment operation, the yield rate reaches 98-99%. However, if the theoretical volume V1 of contact 3 is at a smaller upper limit, the matching volume V3 of the forming chamber 2 is also at a smaller lower limit. Under normal equipment operation, the yield rate reaches 99.9%.

[0057] The following examples of design matching and production matching of stamping riveting die 1 further illustrate the above.

[0058] First, here is a design matching example for stamping and riveting die 1:

[0059] S1′: Receive the drawing of contact 3 and extract the dimensions of the head end of contact 3. Taking the middle dimension as an example, the head height of contact 3 is T=0.8mm, the head diameter is D1=3.76mm, the first spherical radius is SR1=15mm, the first transition fillet is R1=0.2mm, and the first demolding angle is α1=8°.

[0060] S2′: According to the calculation formula, calculate the theoretical volume V1 of the contact 3 head end, and obtain the theoretical volume V1 of the contact 3 head end = 7.79mm. 3

[0061] S3′: Introduce a correction factor k to calculate the corrected volume. For contact 3 with a head diameter in the range of 2-4, take k = 0.94. The calculated V2 = 7.32 mm. 3 .

[0062] S4′: According to the mold design specifications, the dimensions of the forming chamber 2 of the stamping and riveting die 1 are preset. The dimensions of the forming chamber 2 are pre-assigned values, setting the cavity depth H = 0.72mm, the cavity diameter D2 = 3.84mm, the second spherical radius SR2 = 15mm, the second transition fillet R2 = 0.35mm, and the second demolding angle α2 = 9°. The matching volume V3 = 7.13mm is then calculated. 3 .

[0063] S5A′: Determine the relationship between the matching volume V3 of the molding chamber 2 and the corrected volume V2 of the head end of the mold end part; take the design deviation as ±0.03mm. 3 Since the difference between the corrected volume V2 = 7.32 and the matching volume V3 = 7.13 is 0.19, which is greater than the design deviation, the size of the molding chamber 2 is changed.

[0064] S6′: Based on the mold design specifications, adjust the manufacturing dimensions of molding chamber 2, changing the cavity depth H from 0.72mm to 0.74mm, resulting in a new matching volume V3 of molding chamber 2 = 7.34mm. 3 .

[0065] S5B′: The new matching volume V3 = 7.34 mm is obtained from S6. 3 Then, the corrected volume V2 at the head end of contact 3 is 7.32mm. 3 Upon comparison, the difference between the new matching volume V3 and the corrected volume V2 is less than the design deviation, thus meeting the requirements.

[0066] S7′: Complete the design matching of stamping and riveting die 1.

[0067] Because the head end of contact 3 and the forming chamber 2 have high matching accuracy, the forming chamber 2, which is adapted to the middle size of contact 3, is most suitable for contact 3 with a middle size. Furthermore, additional forming chambers 2 are added based on the upper and lower dimensions of contact 3 to form a stamping and riveting die set 1. This stamping and riveting die set 1 can fully match contact 3 of different batch sizes.

[0068] Secondly, there is a production matching example for stamping and riveting die 1:

[0069] S1″: Receive the physical contact 3 to be put into production, and extract the head end dimensions of contact 3 by measurement. Specifically, the head height of contact 3 is T = 0.8mm, the head diameter is D1 = 3.76mm, the first spherical radius is SR1 = 15mm, the first transition fillet is R1 = 0.2mm, and the first demolding angle is α1 = 8°.

[0070] S2″: According to the calculation formula, calculate the theoretical volume V1 of the contact 3 head end, and obtain the theoretical volume V1 of the contact 3 head end = 7.79mm. 3

[0071] S3″: Introduce a correction factor k to calculate the corrected volume. For contact 3 with a head diameter in the range of 2-4, take k = 0.94. The calculated V2 = 7.32 mm. 3 .

[0072] S4″: Presets the dimensions of the forming chamber 2 for three types of stamping dies 1, further dividing them into three production sizes: large, medium, and small. Correspondingly, the matching volume V3 of the forming chamber 2 for the three types of stamping dies 1 is V3A = 7.36mm. 3 V3B = 7.33mm 3 V3C = 7.30mm 3 .

[0073] S5A″: Determine the relationship between the matching volume V3 of the molding chamber 2 and the corrected volume V2 of the head end of the mold end part; the selected deviation is ±0.015mm. 3 To account for half of the design deviation, one of the stamping rivet dies 1 is selected. If we compare it with the stamping rivet die 1 with the largest production size, since the corrected volume V2 = 7.32 and the matching volume V3A = 7.36 of the largest production size differ by 0.04, which exceeds the selection deviation, the size of the forming chamber 2 needs to be changed.

[0074] S6″: Change the size of the forming chamber 2, and replace it with another stamping and riveting die 1 of the centered production model to obtain a new matching volume V3B of the forming chamber 2 = 7.33mm. 3 .

[0075] S5B″: The new matching volume V3B = 7.33 mm is obtained from S6. 3 Then, the corrected volume V2 at the head end of contact 3 is 7.32mm. 3 Upon comparison, the difference between the new matching volume V3B and the corrected volume V2 is 0.01, which is less than the selection deviation, thus meeting the requirements.

[0076] S7″: Complete the production matching of stamping and riveting die 1.

[0077] Based on the same inventive concept, this application provides a matching device embodiment corresponding to Embodiment 1, as detailed in Embodiment 2.

[0078] Example 2

[0079] A matching device for a stamping riveting die 1, applying the matching method for the stamping riveting die 1 in Embodiment 1, such as... Figures 5-6 As shown, the matching device is built based on the QT software, a C++ graphical user interface application development framework, and specifically includes: a mold end part data module and a molding chamber calculation module. The mold end part data module is configured to input the head end size of the mold end part and the correction coefficient K, and generate the theoretical volume V1 and the corrected volume V1 of the head end of the mold end part. The molding chamber calculation module is configured to input the size of the molding chamber 2 and generate the matching volume V3 of the molding chamber 2. The forming cavity calculation module can be used for both design matching of the stamping riveting die 1 and production matching. However, since the cavity of the stamping riveting die 1 for production matching has already been manufactured, it is not necessary to repeatedly input the dimensions of the forming cavity 2 to calculate the matching volume V3 during production matching. Therefore, this embodiment also adds a stamping riveting die selection module for optimizing the production matching mode and a database storing data of the stamping riveting die 1. The stamping riveting die selection module is nested with the die end part data module and has an import module, so that the import module only needs to retrieve the model of the stamping riveting die 1 in the database to obtain the matching volume V3 of each stamping riveting die 1.

[0080] Using the above-mentioned device, the corrected volume V2 of the head end of the die part and the matching volume V3 of the forming chamber 2 can be automatically calculated based on the input dimensions of the head end of the die part and the dimensions of the forming chamber 2, respectively. Then, based on the deviation between the corrected volume V2 and the matching volume V3, the dimensions of the forming chamber 2 are changed, which quantifies and simplifies the adaptation between the stamping die 1 and the die part, saves engineers' design time, and saves material waste caused by the mismatch between the stamping die 1 and the die part.

[0081] like Figure 6As shown, the interface has a left column, a middle column, and a right column. The left column contains the die end part data module, the middle column contains the forming cavity calculation module, and the right column and the bottom of the middle column contain the stamping riveting die selection module. The method of using the matching device in this embodiment is as follows:

[0082] When designing and matching the stamping die 1, first, fill in the head end dimensions of contact point 3 and the correction coefficient K from the drawing into the die end part data module in the left column. Then, press the "Click to Calculate" button in the left column to automatically obtain the theoretical volume V1 (i.e., the head volume in the figure) and the correction volume V2. Next, based on the dimension parameters input from the die end part data module, preset the dimensions of the forming chamber 2 in the forming chamber calculation module in the middle column. Then, press the "Click to Calculate" button in the middle column to obtain the matching volume V3 (i.e., the cavity volume in the figure). Compare the difference between the correction volume V2 in the left column and the matching volume V3 in the middle column with the design deviation. Based on the die design specifications, reasonably adjust the dimensions of the forming chamber 2 in the middle column until the difference between the correction volume V2 and the matching volume V3 meets the design deviation.

[0083] When matching the production of stamping riveting die 1, first fill in the actual contact point 3 head end size and correction coefficient K into the die end part data module in the right column. Then, click "Click to Calculate" in the right column to automatically obtain the theoretical volume V1 (i.e., the head volume in the figure) and the correction volume V2. Next, click the import box below "Recommended Cavity Model" in the right column to import the model of stamping riveting die 1 from the specified path. This will make the area in the middle column belonging to the stamping riveting die selection module display the matching volume V3 of the corresponding stamping riveting die 1 model. Finally, select the stamping riveting die 1 corresponding to the matching volume V3 that is closest to the correction volume 3 in the right column.

[0084] Based on the same inventive concept, this application provides an electronic device embodiment corresponding to Embodiment 1, as detailed in Embodiment 3.

[0085] Example 3

[0086] This embodiment provides an electronic device, such as... Figure 7 As shown, it includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it can implement the implementation method in Embodiment 1.

[0087] Since the electronic device described in this embodiment is the device used to implement the method in Embodiment 1 of this application, those skilled in the art can understand the specific implementation method and various variations of the electronic device in this embodiment based on the method described in Embodiment 1 of this application. Therefore, how the electronic device implements the method in the embodiment of this application will not be described in detail here. Any device used by those skilled in the art to implement the method in the embodiment of this application falls within the scope of protection of this application.

[0088] Based on the same inventive concept, this application provides a storage medium corresponding to Embodiment 1, as detailed in Embodiment 4.

[0089] Example 4

[0090] This embodiment provides a computer-readable storage medium, such as... Figure 8 As shown, a computer program is stored thereon, which, when executed by a processor, can implement the implementation method in Embodiment 1.

[0091] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, apparatus, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, USB flash drive, optical storage, etc.) containing computer-usable program code.

[0092] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus, and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in one or more flowchart illustrations and / or one or more block diagrams.

[0093] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means that implement the functions specified in one or more flowcharts and / or one or more block diagrams.

[0094] These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process, such that the instructions, which execute on the computer or other programmable apparatus, provide steps for implementing the functions specified in one or more flowcharts and / or one or more block diagrams.

[0095] It should be understood that all the above preferred embodiments are exemplary and not restrictive, and various modifications or variations made by those skilled in the art to the specific embodiments described above under the concept of this application should be within the scope of legal protection of this application.

Claims

1. A method of matching a punch rivet die, the method comprising: The method comprises the following steps: ​ S1: quantifying the size of the head end of the die end part; S2: calculating the theoretical volume V1 of the head end of the die end part according to the size of the head end of the die end part; S3: introducing a correction coefficient K according to the manufacturing precision or measurement error of the head end of the die end part to obtain the corrected volume V2 of the head end of the die end part; S4: presetting the size of the forming chamber (2) of the stamping riveting die (1) to obtain the matching volume V3 of the forming chamber (2) under the corresponding size; S5: judging the relationship between the matching volume V3 of the forming chamber (2) and the corrected volume V2 of the head end of the die end part; If the matching volume V3 of the forming chamber (2) is within the allowable deviation range based on the corrected volume V2 of the head end of the die end part, S7 is performed; If the matching volume V3 of the forming chamber (2) exceeds the allowable deviation range based on the corrected volume V2 of the head end of the die end part, S6 is performed; S6: transforming the size of the forming chamber (2) to obtain the transformed matching volume V3, and returning to S5; S7: completing the matching of the stamping riveting die (1).

2. A method of matching a punch rivet die as claimed in claim 1, wherein, When the stamping riveting die (1) is applied to a design matching occasion, The quantification of the size of the head end of the die end part comprises obtaining the size defined by the drawing of the head end of the die end part; The presetting of the size of the forming chamber (2) of the stamping riveting die (1) to obtain the matching volume V3 of the forming chamber (2) comprises designing the manufacturing size of the forming chamber (2) based on the mold design tolerance and the size of the head end of the die end part; The allowable deviation is a design deviation; The transformation of the size of the forming chamber (2) to obtain the transformed matching volume V3 comprises adjusting the manufacturing size of the forming chamber (2) based on the mold design tolerance to change the size of the matching volume V3 of the forming chamber (2).

3. A method of matching a punch rivet die as defined in claim 1, wherein, When the stamping riveting die (1) is applied to a production matching occasion, The quantification of the size of the head end of the die end part comprises measuring the size of the head end of the die end part to be put into production; The presetting of the size of the forming chamber (2) of the stamping riveting die (1) to obtain the matching volume V3 of the forming chamber (2) comprises configuring at least two stamping riveting dies (1), and the forming chamber (2) of each stamping riveting die (1) has a different production size, so that each stamping riveting die (1) has a different matching volume V3; The judgment of the relationship between the matching volume V3 of the forming chamber (2) and the corrected volume V2 of the head end of the die end part comprises selecting one of the stamping riveting dies (1) for comparison, and the allowable deviation is a production deviation; The transformation of the size of the forming chamber (2) to obtain the transformed matching volume V3 and return to step 5 comprises replacing the stamping riveting die (1) so that the updated stamping riveting die (1) has a different size of the forming chamber (2), and obtaining the matching volume V3 of the replaced forming chamber (2).

4. A method of matching a punch rivet die as claimed in any one of claims 1 to 3, wherein, The die end part is a contact (3), and the head end size of the contact (3) comprises a head height T, a first spherical radius SR1, a first transition round angle R1, a head diameter D1, and a first demolding angle a1; and the size of the forming chamber (2) of the stamping rivet die (1) comprises a die cavity depth H, a die cavity diameter D2, a second spherical radius SR2, a second transition round angle R2, and a second demolding angle a2.

5. A punch rivet die matching device characterized by, The application discloses a stamping rivet die matching method. The die end part data module is configured to input the head end size of the die end part, a correction coefficient K, and generate a theoretical volume V1 of the head end of the die end part and a corrected volume V1 of the head end of the die end part. The forming chamber calculation module is configured to input the size of the forming chamber (2) and generate a matching volume V3 of the forming chamber (2).

6. The punch rivet die matching apparatus of claim 5, wherein, The stamping rivet die selection module is nested with the die end part data module and has an import module, so that the import module can obtain the matching volume V3 of each stamping rivet die (1) by only calling the stamping rivet die (1) model in the database.

7. An electronic device, comprising: The application further discloses a computer readable storage medium, and the storage medium stores a computer program.

8. A storage medium, characterized by The computer program is stored on the storage medium and is executed by the processor to realize the stamping rivet die matching method according to any one of claims 1 to 4.

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