A positioning method of a blank holder lifting piece

Abstract

The application provides a positioning method for a blank holder lifting piece, and has the characteristics that the following steps are included: obtaining mold parameters, the center line of the outer main rib of the upper and lower mold bases, and the diameter of the lifting piece; the mold parameters include the parting surface, the thickness of the main rib, the gap between the blank holder and the lower mold base, the thickness standard of the embedded part, the offset height of the lower flange, the width of the guide plate, the width of the guide plate mounting surface, the width of the pressing plate, the width of the pressing plate mounting surface, the minimum distance from the guide plate to the pressing plate, the height of the casting, the height from the mold center line to the mold bed, and the height of the lower mold base; the three-dimensional coordinates (X, Y, Z) of the blank holder lifting piece based on the absolute coordinate system are calculated according to the mold parameters, the center line of the outer main rib of the upper and lower mold bases, and the diameter of the lifting piece; and the blank holder lifting piece is positioned according to the three-dimensional coordinates. The blank holder lifting piece can be quickly positioned, and the production and installation efficiency of the mold is improved.

Description

Technical Field

[0001] This invention belongs to the field of intelligent mold design and manufacturing technology, and specifically relates to a positioning method for a pressure ring lifting component. Background Technology

[0002] The blank holder is a component in a machining mold, primarily used to press the blank material during the mold-making process, increasing the friction between the blank and the punch, and preventing wrinkling on the workpiece wall or flange. The lifting device is typically a hook, which is threadedly connected to the blank holder. During the assembly of the blank holder with the mold, a crane uses the blank holder lifting device to smoothly move and rotate the blank holder, adjusting it to the assembly position for installation.

[0003] In existing technologies, determining the connection position of the lifting component on the pressure ring is a trial-and-error process. This involves manually setting the position of the lifting component and conducting repeated virtual experiments to adjust it until the pressure ring remains stable during lifting, and the lifting rope and component do not interfere with other installed components. This trial-and-error process is inherently unpredictable, leading to a lengthy positioning process for the pressure ring lifting component and resulting in low efficiency in the mold production and installation process. Summary of the Invention

[0004] The present invention aims to solve the technical problems existing in the prior art and provide a positioning method for the lifting component of the pressure ring, which can quickly position the lifting component of the pressure ring and improve the production and installation efficiency of the mold.

[0005] To achieve the above-mentioned objectives of the present invention, according to a first aspect of the present invention, the present invention provides a positioning method for a blank holder lifting component, comprising the following steps: obtaining mold parameters, the center lines of the outer main ribs of the upper and lower mold bases, and the diameter of the lifting component; the mold parameters include the parting surface, the thickness of the main ribs, the gap between the blank holder and the lower mold base, the standard thickness of the embedded part and the offset height of the lower flange, the width of the guide plate, the width of the guide plate mounting surface, the width of the pressure plate, the width of the pressure plate mounting surface, the minimum distance from the guide plate to the pressure plate, the height of the casting, the height of the mold centerline from the mold bed, and the height of the lower mold base; calculating the three-dimensional coordinates (X,Y,Z) of the blank holder lifting component based on the absolute coordinate system according to the mold parameters, the center lines of the outer main ribs of the upper and lower mold bases, and the diameter of the lifting component, and positioning the blank holder lifting component according to the three-dimensional coordinates.

[0006] Furthermore, the blank holder lifting component includes a horizontal lifting component. The specific steps for obtaining the coordinate Z value of the horizontal lifting component are as follows: The parting surface is offset along the Z direction of the absolute coordinate system to obtain a first reference surface, such that the distance from the first reference surface to the parting surface is the same as the offset height of the lower flange; a closed curve is obtained based on the centerline of the outer main ribs of the upper and lower mold bases; the closed curve is reduced equidistantly to obtain the outer contour line of the blank holder; the gap between the outer contour line of the blank holder and the closed curve is the first gap value; the outer contour line of the blank holder is stretched along the Z direction of the absolute coordinate system to form a second reference surface; the minimum Z value Z on the intersection line of the first reference surface and the second reference surface is obtained. min For the minimum Z value Z min After performing integer-five processing, the Z-value of the horizontal lifting component is obtained; the calculation process for the first clearance value is as follows: Where A1 represents the first gap value, T2 represents the thickness of the main rib, and B represents the gap between the pressure ring and the lower mold base.

[0007] Furthermore, the center lines of the outer main ribs of the upper and lower mold bases include the center lines of the first, second, third, and fourth main ribs. The specific steps for obtaining the X-coordinate value of the horizontal lifting component are as follows: the X-coordinate value of the horizontal lifting component is obtained based on the position information of the first and third main ribs, the thickness of the main ribs, the gap between the pressure ring and the lower mold base, the diameter of the lifting component, and the standard thickness of the embedded part. The specific steps for obtaining the Y-coordinate value of the horizontal lifting component are as follows: the Y-coordinate value of the horizontal lifting component is obtained based on the position information of the second and fourth main ribs, the thickness of the main ribs, the gap between the pressure ring and the lower mold base, the diameter of the lifting component, and the standard thickness of the embedded part.

[0008] Furthermore, the horizontal lifting components include a first horizontal lifting component, a second horizontal lifting component, a third horizontal lifting component, and a fourth horizontal lifting component; the specific calculation process for the X-coordinate value of the horizontal lifting components is as follows: Where X1 represents the coordinate X value of the first horizontal lifting component; X2 represents the coordinate X value of the second horizontal lifting component; X3 represents the coordinate X value of the third horizontal lifting component; X4 represents the coordinate X value of the fourth horizontal lifting component; X Z1 This indicates the location information of the centerline of the first main reinforcement bar, X. Z3 This indicates the position information of the centerline of the third main rib; B indicates the gap between the pressure ring and the lower mold base; D indicates the diameter of the lifting part; and h indicates the standard thickness of the embedded part.

[0009] Furthermore, the horizontal lifting components include a first horizontal lifting component, a second horizontal lifting component, a third horizontal lifting component, and a fourth horizontal lifting component; the specific calculation process for the Y-coordinate value of the horizontal lifting components is as follows: Where Y1 represents the Y-coordinate of the first horizontal lifting component; Y2 represents the Y-coordinate of the second horizontal lifting component; Y3 represents the Y-coordinate of the third horizontal lifting component; and Y4 represents the Y-coordinate of the fourth horizontal lifting component. Z2 This indicates the position information of the centerline of the second main reinforcement bar, Y. Z4 This indicates the position information of the centerline of the fourth main rib; B indicates the gap between the pressure ring and the lower mold base; D indicates the diameter of the lifting part; and h indicates the standard thickness of the embedded part.

[0010] Furthermore, the pressure ring lifting component also includes a side lifting component. The specific steps for obtaining the Z-coordinate value of the side lifting component are as follows: calculate the Z-coordinate value of the side lifting component based on the Z-coordinate value of the horizontal lifting component, the height of the mold centerline from the mold bed, and the height of the lower mold base; the calculation process for the Z-coordinate value of the side lifting component is as follows: Where Z2 represents the Z-coordinate of the side lifting component, Z1 represents the Z-coordinate of the horizontal lifting component, H1 represents the height of the mold centerline from the mold bed, and H2 represents the height of the lower mold base.

[0011] Furthermore, the blank holder lifting component also includes side lifting components, which include a fifth side lifting component, a sixth side lifting component, a seventh side lifting component, and an eighth side lifting component; the sides of the blank holder include a first opposite side and a second opposite side; when the side lifting component is installed on the first opposite side, the X and Y coordinate values ​​of the side lifting component are obtained based on the centerline of the outer main ribs of the upper and lower mold bases, the thickness of the main ribs, the gap between the blank holder and the lower mold base, the width of the guide plate, the width of the guide plate mounting surface, the width of the pressure plate, the width of the pressure plate mounting surface, the minimum distance between the guide plate and the pressure plate, the diameter of the lifting component, and the standard thickness of the embedded part; when the side lifting component is installed on the second opposite side, the X and Y coordinate values ​​of the side lifting component are obtained based on the centerline of the outer main ribs of the upper and lower mold bases, the thickness of the main ribs, the gap between the blank holder and the lower mold base, the casting height, the width of the guide plate, the width of the guide plate mounting surface, the diameter of the lifting component, and the standard thickness of the embedded part.

[0012] Furthermore, when the side lifting component is installed on the first opposite side, the calculation process for the X and Y coordinate values ​​of the side lifting component is as follows: Where X5 and Y5 represent the X and Y coordinates of the fifth side lifting component, respectively; X6 and Y6 represent the X and Y coordinates of the sixth side lifting component, respectively; X7 and Y7 represent the X and Y coordinates of the seventh side lifting component, respectively; X8 and Y8 represent the X and Y coordinates of the eighth side lifting component, respectively; X Z1 This indicates the position information of the centerline of the first main reinforcement bar, Y. Z2 This indicates the location information of the centerline of the second main reinforcement bar, X.Z3 This indicates the location information of the centerline of the third main reinforcement bar, Y. Z4 This indicates the position information of the centerline of the fourth main rib; T2 indicates the thickness of the main rib; B indicates the gap between the pressure ring and the lower mold base; L1 indicates the width of the guide plate; Q1 indicates the width of the guide plate mounting surface; L2 indicates the width of the pressure plate; Q2 indicates the width of the pressure plate mounting surface; S LQ The minimum distance between the guide plate and the pressure plate is indicated by D, the diameter of the lifting part is indicated by h, the standard thickness of the embedded part is indicated by h, and the height of the casting is indicated by H.

[0013] Furthermore, when the side lifting component is installed on the second opposite side, the calculation process for the X and Y coordinate values ​​of the side lifting component is as follows: Where X5 and Y5 represent the X and Y coordinates of the fifth side lifting component, respectively; X6 and Y6 represent the X and Y coordinates of the sixth side lifting component, respectively; X7 and Y7 represent the X and Y coordinates of the seventh side lifting component, respectively; X8 and Y8 represent the X and Y coordinates of the eighth side lifting component, respectively; Y Z1 This indicates the position information of the centerline of the first main reinforcement bar, Y. Z2 This indicates the location information of the centerline of the second main reinforcement bar, X. Z3 This indicates the location information of the centerline of the third main reinforcement bar, Y. Z4 The information indicates the position of the centerline of the fourth main rib; T2 indicates the thickness of the main rib; B indicates the gap between the pressure ring and the lower mold base; L1 indicates the width of the guide plate; Q1 indicates the width of the guide plate mounting surface; D indicates the diameter of the lifting part; h indicates the standard thickness of the embedded part; and H indicates the height of the casting.

[0014] Furthermore, the process of obtaining the centerline of the outer main ribs of the upper and lower mold bases is as follows: Based on the absolute coordinate system, obtain the X and Y values ​​of all ejector pin holes, obtain the ejector pin distance, and based on the X and Y values ​​of all ejector pin holes, obtain the maximum value, minimum value, maximum value, and minimum value of the ejector pin hole X and Y values; obtain the ejector pin distance and the blank holder strength coefficient; based on the maximum value, minimum value, maximum value, and minimum value of the ejector pin hole X and Y values, the ejector pin distance, and the blank holder strength coefficient, obtain the position information of the centerline of the outer main ribs of the upper and lower mold bases; the formula for obtaining the position information of the centerline of the outer main ribs of the upper and lower mold bases is as follows: X Z1 =Y Kmin -a*n1-C;Y Z2 =Y Kmin -a*n2-C;X Z3 =X Kmax +a*n3+C;Y Z4 =Y Kmax +a*n4+C; where XZ1 This indicates the location information of the centerline of the first main reinforcement bar, Y. Z2 This indicates the location information of the centerline of the second main reinforcement bar, X. Z3 This indicates the location information of the centerline of the third main reinforcement bar, Y. Z4 This indicates the location information of the centerline of the fourth main reinforcement bar, X. Kmax This represents the maximum value of the X value for the push rod hole. Kmin The minimum value of X for the push rod hole, Y Kmax This represents the maximum value of the Y-value of the push rod hole. Kmin The value represents the minimum value of the Y-value of the push rod hole, a represents the push rod distance, n1 represents the strength coefficient of the first pressure ring, n2 represents the strength coefficient of the second pressure ring, n3 represents the strength coefficient of the third pressure ring, n4 represents the strength coefficient of the fourth pressure ring, and C is the first constant.

[0015] The technical principle and beneficial effects of this invention are as follows: This invention obtains mold parameters related to the lifting component of the pressure ring, the centerline of the outer main ribs of the upper and lower mold bases, and the diameter of the lifting component. The diameter of the lifting component is determined according to the model of the lifting component. The invention then quickly and accurately obtains the position of the pressure ring lifting component in the mold through calculation. Compared with existing technologies, this invention does not require repeated virtual experiments to verify and modify the position of the pressure ring lifting component. Instead, it directly obtains the relevant parameters of the pressure ring lifting component, a process that takes only 2-3 minutes. This saves manpower and time and improves the efficiency of mold generation and assembly. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the positioning method for a pressure ring lifting component according to the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of the pressure ring lifting component in an embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of the parting surface structure of the present invention;

[0019] Figure 4 This is a schematic diagram of the installation position of the lifting component for the pressure ring of the present invention;

[0020] Figure 5 This is a schematic diagram showing the location of some mold parameters of the present invention;

[0021] Figure 6 This is a schematic diagram of the installation of the lifting component of the present invention;

[0022] Figure 7 This is a schematic diagram of the installation position of the lifting component for the pressure ring of the present invention;

[0023] Figure 8 This is a schematic diagram showing the positions of the pressure plate and guide plate of the present invention.

[0024] Figure reference numerals: 1. Pressure ring lifting component; 2. Lower punch; 3. Parting surface; 4. Pressure ring; 5. Side lifting component; 6. Horizontal lifting component; 7. Lower flange offset height; 8. Main rib thickness; 9. Lower mold base height; 10. Height of mold centerline from mold bed; 11. Embedded part wall thickness standard h; 12. Casting height H; 13. Pressure plate; 14. Guide plate; 15. Distance from pressure plate to guide plate. Detailed Implementation

[0025] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0026] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0027] As attached Figure 1 As shown: This invention provides a method for positioning a clamping ring lifting component, comprising the following steps:

[0028] Obtain mold parameters, center lines of the outer main ribs of the upper and lower mold bases, and diameter of the lifting components; as shown in the attached document. Figure 3 and attached Figure 5 As shown, the mold parameters include parting surface 3, main rib thickness T2, gap between pressure ring and lower mold base, standard wall thickness h of embedded part and offset height of lower flange H5, guide plate width, guide plate mounting surface width, pressure plate width, pressure plate mounting surface width, minimum distance from guide plate to pressure plate, casting height H, mold centerline distance from mold bed height H1 and lower mold base height H2;

[0029] Specifically, the centerlines of the outer main ribs of the upper and lower mold bases include the centerlines of the first, second, third, and fourth main ribs; as shown in the attached diagram. Figure 6 As shown, the casting height H is specifically the height difference between the upper surface of the lifting component and the mounting surface of the lifting component, and the embedded part thickness standard h is specifically the peripheral thickness standard of the lifting component embedded in the pressure ring; (See attached image) Figure 8 This is a half-sectional view of the mold, attached. Figure 8 The diagram shows the installation positions of the pressure plate 7 and the guide plate 8, as well as the distance 9 between the pressure plate and the guide plate; Appendix Figure 5The lower flange offset height H5, lower die base height H2, main rib thickness T2, and the position of the die centerline distance from the die bed height H1 are marked with reference to the lower punch 2.

[0030] Based on the mold parameters, the centerline of the outer main ribs of the upper and lower mold bases, and the diameter of the lifting component, the three-dimensional coordinates (X,Y,Z) of the pressure ring lifting component 1 based on the absolute coordinate system are calculated. The pressure ring lifting component 1 is then positioned according to these three-dimensional coordinates. Here, the absolute coordinate system refers to the coordinate system referenced during mold assembly.

[0031] As attached Figure 4 As shown, the pressing ring lifting component 1 includes a horizontal lifting component 6 and a side lifting component 5. The horizontal lifting component 6 is mainly used to lift the pressing ring 4 for vertical horizontal movement, and the side lifting component 5 is mainly used to lift the pressing ring 4 for flipping. The horizontal lifting component 6 includes a first horizontal lifting component, a second horizontal lifting component, a third horizontal lifting component, and a fourth horizontal lifting component; the side lifting component includes a fifth side lifting component, a sixth side lifting component, a seventh side lifting component, and an eighth side lifting component. In this embodiment, the structure of the pressing ring lifting component 1 is as shown in the attached figure. Figure 2 As shown.

[0032] As attached Figure 4 As shown, the specific steps for obtaining the coordinate Z value of the horizontal lifting component 6 are as follows: the parting surface 3 is offset along the Z direction of the absolute coordinate system to obtain the first reference surface, so that the distance from the first reference surface to the parting surface 3 is the same as the offset height H5 of the lower flange; in this embodiment, the offset height H5 of the lower flange is preferably 20mm, and in other embodiments, the offset height H5 of the lower flange is obtained according to the mold process or manually set.

[0033] A closed curve is obtained based on the center line of the outer main ribs of the upper and lower mold bases. The closed curve is reduced at equal intervals to obtain the outer contour line of the pressure ring. The gap between the outer contour line of the pressure ring and the closed curve is the first gap value. The outer contour line of the pressure ring is stretched along the Z direction of the absolute coordinate system to form the second reference surface.

[0034] Obtain the minimum Z value Z on the intersection line of the first reference plane and the second reference plane. min For the minimum Z value Z min After performing integer-five processing, the coordinate Z value of the horizontal lifting component 6 is obtained; the calculation process of the first gap value is as follows:

[0035]

[0036] Where A1 represents the first gap value, T2 represents the thickness of the main rib, and B represents the gap between the pressure ring and the lower mold base.

[0037] In this embodiment, the rounding process is as follows: the Z-value of the lowest point is rounded to a multiple of 5. For example, among numbers 0 to 5, numbers less than 2.5 become 0 after rounding, and numbers greater than or equal to 2.5 become 5. Among numbers 5 to 10, numbers less than 7.5 become 5, and numbers greater than or equal to 7.5 become 10. For instance, coordinate values ​​1 and 2.2 become 0 after rounding, coordinate values ​​2.8 and 4 become 5, coordinate values ​​6 and 7.4 become 5, and coordinate values ​​7.5 and 9 become 10. The advantage of rounding is that it facilitates measurement by fitters, and the processed part dimensions are all multiples of 5, making positioning and marking during machining more convenient.

[0038] The specific steps for obtaining the X-coordinate value of the horizontal lifting component 6 are as follows: Based on the position information of the centerline of the first main rib, the position information of the centerline of the third main rib, the thickness T2 of the main rib, the gap between the pressure ring and the lower mold base, the diameter of the lifting component, and the standard thickness h of the embedded part, the X-coordinate value of the horizontal lifting component 6 is obtained. The specific calculation process for the X-coordinate value of the horizontal lifting component 6 is as follows:

[0039]

[0040]

[0041]

[0042]

[0043] Where X1 represents the coordinate X value of the first horizontal lifting component; X2 represents the coordinate X value of the second horizontal lifting component; X3 represents the coordinate X value of the third horizontal lifting component; X4 represents the coordinate X value of the fourth horizontal lifting component; X Z1 This indicates the location information of the centerline of the first main reinforcement bar, X. Z3 This indicates the position information of the centerline of the third main rib; B indicates the gap between the pressure ring and the lower mold base; D indicates the diameter of the lifting part; and h indicates the standard thickness of the embedded part.

[0044] In this embodiment, the thickness T2 of the main rib is preferably 40mm or 50mm, the gap B between the pressure ring and the lower mold base is preferably 40mm, the diameter D of the lifting part is preferably 55mm, and the standard thickness h of the embedded part is equal to the thickness of the main rib. In this embodiment, the standard thickness h of the embedded part is preferably 40mm. In other embodiments, the thickness T2 of the main rib, the gap B between the pressure ring and the lower mold base, and the standard thickness h of the embedded part are obtained according to the mold process or manually set. The diameter D of the lifting part is obtained by querying the model value of the lifting part, and the model of the lifting part is selected according to the weight of the lifting part.

[0045] The specific steps for obtaining the Y-coordinate value of the horizontal lifting component 6 are as follows: Based on the position information of the centerline of the second main rib, the position information of the centerline of the fourth main rib, the thickness T2 of the main rib, the gap between the pressure ring and the lower mold base, the diameter of the lifting component, and the standard thickness h of the embedded part, the Y-coordinate value of the horizontal lifting component 6 is obtained. The specific calculation process for the Y-coordinate value of the horizontal lifting component 6 is as follows:

[0046]

[0047]

[0048]

[0049]

[0050] Where Y1 represents the Y-coordinate of the first horizontal lifting component; Y2 represents the Y-coordinate of the second horizontal lifting component; Y3 represents the Y-coordinate of the third horizontal lifting component; and Y4 represents the Y-coordinate of the fourth horizontal lifting component. Z2 This indicates the position information of the centerline of the second main reinforcement bar, Y. Z4 The symbol indicates the position of the centerline of the fourth main rib; B indicates the gap between the pressure ring and the lower mold base; D indicates the diameter of the lifting component; and h indicates the standard thickness of the embedded part. In this embodiment, the thickness of the main rib T2 is preferably 40mm or 50mm, the gap B between the pressure ring and the lower mold base is preferably 40mm, the diameter D of the lifting component is preferably 55mm, and the standard thickness h of the embedded part is preferably 40mm.

[0051] The specific steps for obtaining the Z-coordinate value of the side lifting component 5 are as follows: Calculate the Z-coordinate value of the side lifting component 5 based on the Z-coordinate value of the horizontal lifting component 6, the height H1 of the mold centerline from the mold bed, and the height H2 of the lower mold base; the calculation process for the Z-coordinate value of the side lifting component 5 is as follows:

[0052]

[0053] Wherein, Z2 represents the Z-coordinate value of the side lifting component 5, Z1 represents the Z-coordinate value of the horizontal lifting component, H1 represents the height of the mold centerline from the mold bed, and H2 represents the height of the lower mold base. In this embodiment, the height H1 of the mold centerline from the mold bed is preferably 750mm, and the height H2 of the lower mold base is preferably 270mm; in other embodiments, the height H1 of the mold centerline from the mold bed and the height H2 of the lower mold base are obtained by measurement based on mold details or by manual setting.

[0054] Specifically, the pressure ring has four sides, including a first opposite side and a second opposite side. The side lifting member 5 is selected to install on the first opposite side or the second opposite side according to the shape of the pressure ring 4. Preferably, the side lifting member 5 is usually located on the short side of the pressure ring 4, which makes it easy to flip the pressure ring 4 through the side lifting member 5.

[0055] As attached Figure 7 As shown, when the side lifting component 5 is installed on the first opposite side, the X and Y coordinate values ​​of the side lifting component 5 are obtained based on the centerline of the outer main ribs of the upper and lower mold bases, the thickness T2 of the main ribs, the gap between the pressure ring and the lower mold base, the width of the guide plate, the width of the guide plate mounting surface, the width of the pressure plate, the width of the pressure plate mounting surface, the minimum distance between the guide plate and the pressure plate, the diameter of the lifting component, and the standard h of the embedded part thickness. The calculation process for the X and Y coordinate values ​​of the side lifting component 5 is as follows:

[0056]

[0057]

[0058]

[0059]

[0060]

[0061]

[0062]

[0063]

[0064] Where X5 and Y5 represent the X and Y coordinates of the fifth side lifting component, respectively; X6 and Y6 represent the X and Y coordinates of the sixth side lifting component, respectively; X7 and Y7 represent the X and Y coordinates of the seventh side lifting component, respectively; X8 and Y8 represent the X and Y coordinates of the eighth side lifting component, respectively; X Z1 This indicates the position information of the centerline of the first main reinforcement bar, Y. Z2 This indicates the location information of the centerline of the second main reinforcement bar, X. Z3 This indicates the location information of the centerline of the third main reinforcement bar, Y. Z4 This indicates the position information of the centerline of the fourth main rib; T2 indicates the thickness of the main rib; B indicates the gap between the pressure ring and the lower die base; L1 indicates the width of the guide plate; Q1 indicates the width of the guide plate mounting surface; L2 indicates the width of the pressure plate; Q2 indicates the width of the pressure plate mounting surface; S LQ The minimum distance between the guide plate and the pressure plate is indicated by D, the diameter of the lifting part is indicated by h, the standard thickness of the embedded part is indicated by h, and the height of the casting is indicated by H.

[0065] In this embodiment, the thickness T2 of the main rib is preferably 40mm or 50mm, the gap B between the pressure ring and the lower mold base is preferably 40mm, the diameter D of the lifting component is preferably 55mm, and the standard wall thickness h of the embedded component is preferably 40mm; the width L1 of the guide plate is preferably 100mm, the width Q1 of the guide plate mounting surface is preferably 30mm, the width L2 of the pressure plate is preferably 120mm, the width Q2 of the pressure plate mounting surface is preferably 20mm, and the minimum distance S between the guide plate and the pressure plate is... LQ Preferably, the thickness is 30mm, and the casting height H is preferably 5mm. In other embodiments, the main rib thickness T2, the gap B between the pressure ring and the lower mold base, the lifting part diameter D, the standard wall thickness h of the embedded part, the guide plate width L1, the guide plate mounting surface width Q1, the pressure plate width L2, the pressure plate mounting surface width Q2, and the minimum distance S between the guide plate and the pressure plate are specified. LQ Both the casting height H and the casting height are obtained through mold technology or manual setting.

[0066] As attached Figure 4 As shown, when the side lifting component 5 is installed on the second opposite side, the X and Y coordinate values ​​of the side lifting component 5 are obtained based on the centerline of the outer main ribs of the upper and lower mold bases, the thickness T2 of the main ribs, the gap between the pressure ring and the lower mold base, the casting height H, the guide plate width, the width of the guide plate mounting surface, the lifting component diameter, and the standard thickness h of the embedded part. The calculation process for the X and Y coordinate values ​​of the side lifting component 5 is as follows:

[0067]

[0068]

[0069]

[0070]

[0071]

[0072]

[0073]

[0074]

[0075] Where X5 and Y5 represent the X and Y coordinates of the fifth side lifting component, respectively; X6 and Y6 represent the X and Y coordinates of the sixth side lifting component, respectively; X7 and Y7 represent the X and Y coordinates of the seventh side lifting component, respectively; X8 and Y8 represent the X and Y coordinates of the eighth side lifting component, respectively; X Z1 This indicates the position information of the centerline of the first main reinforcement bar, Y. Z2 This indicates the location information of the centerline of the second main reinforcement bar, X. Z3This indicates the location information of the centerline of the third main reinforcement bar, Y. Z4 The following parameters are used to indicate the position of the centerline of the fourth main rib: T2 represents the thickness of the main rib; B represents the gap between the pressure ring and the lower mold base; L1 represents the width of the guide plate; Q1 represents the width of the guide plate mounting surface; D represents the diameter of the lifting component; h represents the standard thickness of the embedded part; and H represents the casting height. In this embodiment, the main rib thickness T2 is preferably 40mm or 50mm, the gap B between the pressure ring and the lower mold base is preferably 40mm, the diameter D of the lifting component is preferably 55mm, the standard thickness h of the embedded part is preferably 40mm, the guide plate width L1 is preferably 100mm, the width Q1 of the guide plate mounting surface is preferably 30mm, and the casting height H is preferably 5mm.

[0076] Typically, the upper die is a concave die, and the lower die is a convex die; the process of obtaining the center line of the outer main ribs of the upper and lower die bases is as follows:

[0077] Obtain the X and Y values ​​of all top rod holes based on the absolute coordinate system, obtain the top rod distance, and obtain the maximum, minimum, maximum, and minimum X and Y values ​​of the top rod holes based on the X and Y values ​​of all top rod holes.

[0078] Obtain the ejector pin distance and the blank holder strength coefficient. Based on the maximum and minimum values ​​of the ejector pin hole X and Y values, the ejector pin distance, and the blank holder strength coefficient, obtain the position information of the center lines of the main ribs on the outer rings of the upper and lower mold bases. The formula for obtaining the position information of the center lines of the main ribs on the outer rings of the upper and lower mold bases is as follows:

[0079] X Z1 =X Kmin -a*n1-C

[0080] Y Z2 =Y Kmin -a*n2-C

[0081] X Z3 =X Kmax +a*n3+C

[0082] Y Z4 =Y Kmax +a*n4+C

[0083] Among them, X Z1 This indicates the location information of the centerline of the first main reinforcement bar, Y. Z2 This indicates the location information of the centerline of the second main reinforcement bar, X. Z3 This indicates the location information of the centerline of the third main reinforcement bar, Y. Z4 This indicates the location information of the centerline of the fourth main reinforcement bar, X. Kmax This indicates the maximum value of the X value of the push rod hole, Y. Kmin The minimum value of X for the push rod hole, Y KmaxThis represents the maximum value of the Y-value of the push rod hole. Kmin The value represents the minimum value of the Y-value of the push rod hole, a represents the push rod distance, n1 represents the strength coefficient of the first pressure ring, n2 represents the strength coefficient of the second pressure ring, n3 represents the strength coefficient of the third pressure ring, n4 represents the strength coefficient of the fourth pressure ring, and C is the first constant.

[0084] In this embodiment, the process of obtaining the strength coefficient of the blank holder is as follows: An initial value for the strength coefficient of the blank holder is set. An intermediate value F is calculated based on the position information of the centerline of the main ribs on the outer rings of the upper and lower mold bases, the thickness T2 of the main ribs, and the distance between the blank holder and the lower mold base. The intermediate value includes a first reference value F1, a second reference value F2, a third reference value F3, and a fourth reference value F4. The calculation process is as follows:

[0085]

[0086]

[0087]

[0088]

[0089] Among them, X Z1 This indicates the position information of the centerline of the first main reinforcement bar, Y. Z2 This indicates the position information of the centerline of the second main reinforcement bar, Y. Z3 This indicates the location information of the centerline of the third main reinforcement bar, Y. Z4 The value of Y represents the centerline of the fourth main rib; B is the gap between the pressure ring and the lower mold base; and T2 is the thickness of the main rib. In this embodiment, the gap B between the pressure ring and the lower mold base is preferably 40mm, and the thickness T2 of the main rib is preferably 40mm or 50mm.

[0090] Obtain the coordinates of the intersection point between the parting line and the Y-axis in the absolute coordinate system to obtain the maximum value Y of the parting line on the Y-axis in the absolute coordinate system. Fmax and minimum value Y Fmin Calculate the first difference E1, the second difference E2, the third difference E3, and the fourth difference E4 using the following formulas:

[0091] E1 = F1 - X Fmin

[0092] E2 = F2 - X Fmax

[0093] E3 = Y3 - Y Fmin

[0094] E4 = F4 - Y Fmax

[0095] The first difference E1, the second difference E2, the third difference E3, and the fourth difference E4 are compared with the minimum width of the pressure ring. If all of these differences are greater than or equal to the minimum width of the pressure ring, the pressure ring strength coefficient is set to its initial value. If the ratio of the first difference E1 / second difference E2 / third difference E3 / fourth difference E4 is less than the minimum width of the pressure ring, the corresponding pressure ring strength coefficient is changed so that all of these differences are greater than or equal to the minimum width of the pressure ring. In this embodiment, the minimum width of the pressure ring is preferably 150mm, 210mm, or 270mm; in other embodiments, the minimum width of the pressure ring is determined from the pressure ring manual.

[0096] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0097] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A method for positioning a lifting component for a pressure ring, characterized in that, Includes the following steps: Obtain mold parameters, center lines of the outer main ribs of the upper and lower mold bases, and diameter of the lifting parts; mold parameters include parting surface, main rib thickness, gap between the pressure ring and the lower mold base, standard wall thickness of the embedded part and offset height of the lower flange, guide plate width, guide plate mounting surface width, pressure plate width, pressure plate mounting surface width, minimum distance from the guide plate to the pressure plate, casting height, height of the mold center line from the mold bed, and height of the lower mold base; Based on the mold parameters, the center line of the outer main ribs of the upper and lower mold bases, and the diameter of the lifting component, calculate the three-dimensional coordinates (X,Y,Z) of the pressing ring lifting component in the absolute coordinate system, and position the pressing ring lifting component according to the three-dimensional coordinates.

2. The positioning method for a pressure ring lifting component as described in claim 1, characterized in that: The pressure ring lifting component includes a horizontal lifting component. The specific steps for obtaining the coordinate Z value of the horizontal lifting component are as follows: offset the parting surface along the Z direction of the absolute coordinate system to obtain the first reference surface, so that the distance from the first reference surface to the parting surface is the same as the offset height of the lower flange. A closed curve is obtained based on the center line of the outer main ribs of the upper and lower mold bases. The closed curve is reduced at equal intervals to obtain the outer contour line of the pressure ring. The gap between the outer contour line of the pressure ring and the closed curve is the first gap value. The outer contour line of the pressure ring is stretched along the Z direction of the absolute coordinate system to form the second reference surface. Obtain the minimum Z value Z on the intersection line of the first reference plane and the second reference plane. min For the minimum Z value Z min After performing integer-five processing, the Z-coordinate value of the horizontal lifting component is obtained; The calculation process for the first gap value is as follows: Where A1 represents the first gap value, T2 represents the thickness of the main rib, and B represents the gap between the pressure ring and the lower mold base.

3. The positioning method for a pressure ring lifting component as described in claim 1 or 2, characterized in that, The center lines of the outer main reinforcement bars of the upper and lower mold bases include the center lines of the first, second, third, and fourth main reinforcement bars; The specific steps to obtain the coordinate X value of the horizontal lifting component are as follows: obtain the coordinate X value of the horizontal lifting component based on the position information of the centerline of the first main rib, the position information of the centerline of the third main rib, the thickness of the main rib, the gap between the pressure ring and the lower mold base, the diameter of the lifting component, and the standard thickness of the embedded part. The specific steps for obtaining the Y-coordinate value of the horizontal lifting component are as follows: Based on the position information of the centerline of the second main rib, the position information of the centerline of the fourth main rib, the thickness of the main rib, the gap between the pressure ring and the lower mold base, the diameter of the lifting component, and the standard thickness of the embedded part, the Y-coordinate value of the horizontal lifting component is obtained.

4. The positioning method for a pressure ring lifting component as described in claim 3, characterized in that, The horizontal lifting components include a first horizontal lifting component, a second horizontal lifting component, a third horizontal lifting component, and a fourth horizontal lifting component; The specific calculation process for the X-coordinate value of the horizontal lifting component is as follows: Where X1 represents the coordinate X value of the first horizontal lifting component; X2 represents the coordinate X value of the second horizontal lifting component; X3 represents the coordinate X value of the third horizontal lifting component; X4 represents the coordinate X value of the fourth horizontal lifting component; X Z1 This indicates the location information of the centerline of the first main reinforcement bar, X. Z3 This indicates the position information of the centerline of the third main rib; B indicates the gap between the pressure ring and the lower mold base; D indicates the diameter of the lifting part; and h indicates the standard thickness of the embedded part.

5. The positioning method for a pressure ring lifting component as described in claim 3, characterized in that, The horizontal lifting components include a first horizontal lifting component, a second horizontal lifting component, a third horizontal lifting component, and a fourth horizontal lifting component; The specific calculation process for the Y-coordinate value of the horizontal lifting component is as follows: Where Y1 represents the Y-coordinate of the first horizontal lifting component; Y2 represents the Y-coordinate of the second horizontal lifting component; Y3 represents the Y-coordinate of the third horizontal lifting component; and Y4 represents the Y-coordinate of the fourth horizontal lifting component. Z2 This indicates the position information of the centerline of the second main reinforcement bar, Y. Z4 This indicates the position information of the centerline of the fourth main rib; B indicates the gap between the pressure ring and the lower mold base; D indicates the diameter of the lifting part; and h indicates the standard thickness of the embedded part.

6. A positioning method for a pressure ring lifting component as described in claims 1, 2, 4, or 5, characterized in that, The pressure ring lifting component also includes a side lifting component. The specific steps to obtain the Z-value of the side lifting component are as follows: calculate the Z-value of the side lifting component based on the Z-value of the horizontal lifting component, the height of the mold centerline from the mold bed, and the height of the lower mold base. The calculation process for the Z-coordinate value of the side lifting component is as follows: Where Z2 represents the Z-coordinate of the side lifting component, Z1 represents the Z-coordinate of the horizontal lifting component, H1 represents the height of the mold centerline from the mold bed, and H2 represents the height of the lower mold base.

7. The positioning method for a pressure ring lifting component as described in claim 6, characterized in that, The clamping ring lifting components also include side lifting components, which include a fifth side lifting component, a sixth side lifting component, a seventh side lifting component, and an eighth side lifting component; the sides of the clamping ring include a first opposite side and a second opposite side; When the side lifting component is installed on the first opposite side, the X and Y coordinate values ​​of the side lifting component are obtained based on the center line of the outer main ribs of the upper and lower mold bases, the thickness of the main ribs, the gap between the pressure ring and the lower mold base, the width of the guide plate, the width of the guide plate mounting surface, the width of the pressure plate, the width of the pressure plate mounting surface, the minimum distance between the guide plate and the pressure plate, the diameter of the lifting component, and the standard thickness of the embedded part. When the side lifting component is installed on the second opposite side, the X and Y coordinate values ​​of the side lifting component are obtained based on the centerline of the outer main ribs of the upper and lower mold bases, the thickness of the main ribs, the gap between the pressure ring and the lower mold base, the height of the casting, the width of the guide plate, the width of the guide plate mounting surface, the diameter of the lifting component, and the standard thickness of the embedded part.

8. The positioning method for a pressure ring lifting component as described in claim 7, characterized in that, When the side lifting component is installed on the first opposite side, the calculation process for the X and Y coordinate values ​​of the side lifting component is as follows: Where X5 and Y5 represent the X and Y coordinates of the fifth side lifting component, respectively; X6 and Y6 represent the X and Y coordinates of the sixth side lifting component, respectively; X7 and Y7 represent the X and Y coordinates of the seventh side lifting component, respectively; X8 and Y8 represent the X and Y coordinates of the eighth side lifting component, respectively; X Z1 This indicates the position information of the centerline of the first main reinforcement bar, Y. Z2 This indicates the location information of the centerline of the second main reinforcement bar, X. Z3 This indicates the location information of the centerline of the third main reinforcement bar, Y. Z4 This indicates the position information of the centerline of the fourth main rib; T2 indicates the thickness of the main rib; B indicates the gap between the pressure ring and the lower mold base; L1 indicates the width of the guide plate; Q1 indicates the width of the guide plate mounting surface; L2 indicates the width of the pressure plate; Q2 indicates the width of the pressure plate mounting surface; S LQ The minimum distance between the guide plate and the pressure plate is indicated by D, the diameter of the lifting part is indicated by h, the standard thickness of the embedded part is indicated by h, and the height of the casting is indicated by H.

9. The positioning method for a pressure ring lifting component as described in claim 7, characterized in that, When the side lifting component is installed on the second opposite side, the calculation process for the X and Y coordinate values ​​of the side lifting component is as follows: Where X5 and Y5 represent the X and Y coordinates of the fifth side lifting component, respectively; X6 and Y6 represent the X and Y coordinates of the sixth side lifting component, respectively; X7 and Y7 represent the X and Y coordinates of the seventh side lifting component, respectively; X8 and Y8 represent the X and Y coordinates of the eighth side lifting component, respectively; X Z1 This indicates the position information of the centerline of the first main reinforcement bar, Y. Z2 This indicates the location information of the centerline of the second main reinforcement bar, X. Z3 This indicates the location information of the centerline of the third main reinforcement bar, Y. Z4 The information indicates the position of the centerline of the fourth main rib; T2 indicates the thickness of the main rib; B indicates the gap between the pressure ring and the lower mold base; L1 indicates the width of the guide plate; Q1 indicates the width of the guide plate mounting surface; D indicates the diameter of the lifting part; h indicates the standard thickness of the embedded part; and H indicates the height of the casting.

10. A positioning method for a pressure ring lifting component as described in claims 1, 2, 4, 5, 7, 8, or 9, characterized in that: The process of obtaining the centerline of the outer main reinforcement of the upper and lower formwork bases is as follows: Obtain the X and Y values ​​of all top rod holes based on the absolute coordinate system, obtain the top rod distance, and obtain the maximum, minimum, maximum, and minimum X and Y values ​​of the top rod holes based on the X and Y values ​​of all top rod holes. Obtain the ejector pin distance and the blank holder strength coefficient. Based on the maximum and minimum values ​​of the ejector pin hole X and Y values, the ejector pin distance, and the blank holder strength coefficient, obtain the position information of the center lines of the main ribs on the outer rings of the upper and lower mold bases. The formula for obtaining the position information of the center lines of the main ribs on the outer rings of the upper and lower mold bases is as follows: X Z1 =X Kmin -a*n1-C Y Z2 =Y Kmin -a*n2-C X Z3 =X Kmax +a*n3+C Y Z4 =Y Kmax +a*n4+C Among them, X Z1 This indicates the location information of the centerline of the first main reinforcement bar, Y. Z2 This indicates the location information of the centerline of the second main reinforcement bar, X. Z3 This indicates the location information of the centerline of the third main reinforcement bar, Y. Z4 This indicates the location information of the centerline of the fourth main reinforcement bar, X. Kmax This represents the maximum value of the X value for the push rod hole. Kmin The minimum value of X for the push rod hole, Y Kmax This represents the maximum value of the Y-value of the push rod hole. Kmin The value represents the minimum value of the Y-value of the push rod hole, a represents the push rod distance, n1 represents the strength coefficient of the first pressure ring, n2 represents the strength coefficient of the second pressure ring, n3 represents the strength coefficient of the third pressure ring, n4 represents the strength coefficient of the fourth pressure ring, and C is the first constant.

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