A method and system for positioning a die holder ear

Abstract

The present application belongs to the technical field of intelligent mold manufacturing, and provides a mold base lug positioning method and system, comprising the following steps: obtaining mold parameters, the mold parameters including end width, mold left direction size, mold front direction size, mold center line distance from bed height, first lug x direction movement amount, main rib thickness, center inner space value, center lower space value, lower space value adjustment amount, and end front direction adjustment amount; obtaining first lug position information in an absolute coordinate system according to the model parameters, and respectively mirroring the first lug position information according to the absolute coordinate origin, absolute coordinate x axis, and absolute coordinate y axis to obtain position information of the remaining three lugs. The present application improves mold base lug positioning precision and positioning efficiency, and improves mold installation efficiency.

Description

Technical Field

[0001] This invention belongs to the field of intelligent mold technology, specifically relating to a method and system for positioning mold base lifting lugs. Background Technology

[0002] A mold is a tool used to create shaped objects, primarily by altering the physical state of the material being molded to achieve the desired shape. A mold mainly consists of components such as a mold base, mold frame, and mold core. During mold production, these components need to be assembled and adjusted in an absolute coordinate system before the mold is moved to its working position for use. During the assembly of the upper and lower mold bases, lifting lugs are typically installed on the mold base, and a crane is used to smoothly move the mold base to its assembly position for installation.

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

[0004] The present invention aims to solve the technical problems existing in the prior art and provide a method and system for positioning mold base lifting lugs, which can quickly obtain the position of mold base lifting lugs, improve the positioning accuracy and efficiency of mold base lifting lugs, and improve the installation efficiency of molds.

[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 method for positioning a mold base lifting lug, comprising the following steps: obtaining mold parameters, including end width, left dimension of the mold, forward dimension of the mold, height of the mold centerline from the bed, x-axis movement of the first lifting lug, main rib thickness, center inner space value, center lower space value, lower space value adjustment amount, and end forward adjustment amount; obtaining the position information of the first lifting lug in the absolute coordinate system according to the model parameters; mirroring the first lifting lug according to the absolute coordinate origin to obtain the position information of the second lifting lug; mirroring the first lifting lug according to the absolute coordinate x-axis to obtain the position information of the third lifting lug; and mirroring the position information of the first lifting lug according to the absolute coordinate y-axis to obtain the position information of the fourth lifting lug.

[0006] Furthermore, the position information of the first lifting lug includes its initial coordinates. The process for obtaining the initial coordinates is as follows: Calculate the X value of the initial coordinates: X s =L+m+c1+n1; Calculate the Y value of the initial coordinates: Calculate the Z value of the initial coordinates: Z s=H2+c2+k2+k′2; where L represents the leftward dimension of the mold, m represents the end width, c1 represents the first standard parameter, n1 represents the x-axis movement of the first lifting lug, F′ represents the first intermediate value, which is obtained based on the forward dimension of the mold, T2 represents the main rib thickness, k1 represents the center space value, and d f H2 represents the forward adjustment amount of the end head, H2 represents the height of the mold centerline from the bed, c2 represents the second standard parameter, k2 represents the lower center space value, and k′2 represents the lower space value adjustment amount; the first standard parameter and the second standard parameter are obtained according to the lifting lug execution standard.

[0007] Furthermore, the mold parameters also include mold height, end rearward adjustment amount, mold rearward dimension, and mold rightward dimension; the position information of the first lifting lug also includes offset coordinates, and the position information of the first lifting lug is obtained based on the initial coordinates and offset coordinates; the process of obtaining the offset coordinates is as follows: Calculate the X value of the offset coordinates: X p = (H1-2H2) / 2; Calculate the Y value of the offset coordinate: Y p = (L + R - 2n1) / 2; Calculate the Z value of the offset coordinate: Z p =(F′+B′-d f +d b ) / 2; where H1 represents the mold height, H2 represents the height of the mold centerline from the bed, L represents the left dimension of the mold, R represents the right dimension of the mold, n1 represents the x-axis movement of the first lifting lug, F′ represents the first intermediate value, which is obtained based on the forward dimension of the mold, B′ represents the second intermediate value, which is obtained based on the backward dimension of the mold, d f Indicates the forward adjustment amount at the end, d b This indicates the amount of backward adjustment at the end.

[0008] Furthermore, the specific steps for obtaining the position information of the first lifting lug based on the initial coordinates and offset coordinates are as follows: Position information X value of the first lifting lug: X1 = X s +X p The position information of the first lug, Y value: Y1 = Y s +Y p The position information of the first lug, Z-value: Z1 = Z s +Z p .

[0009] Furthermore, the process for obtaining the forward dimension and leftward dimension of the mold is as follows: The first reference variable for calculating the forward dimension of the mold is: The second reference variable for calculating the forward dimension of the mold is: f2 = D2 + W F+N; If all ejector pins avoid the impact, when f1 < f2, the forward dimension of the mold F = f1 + J; when f1 ≥ f2, the forward dimension of the mold F = f1; If all ejector pins do not avoid the impact, the forward dimension of the mold F = f2; The first reference variable for calculating the leftward dimension of the mold: The second reference variable for calculating the leftward dimension of the mold: l2 = D1 + W L +N+K; If all ejector pins avoid the impact, when l1 < l2, the left dimension of the mold L = l1 + J; when l1 ≥ l2, the left dimension of the mold L = l1; if all ejector pins do not avoid the impact, the left dimension of the mold L = l2; where, the round() function represents the rounding function, D1 represents the vertical distance from the first auxiliary line to the absolute coordinate, W L N represents the width of the left flange of the pressure ring, N represents the width of the pressure profile, ΔX represents the X-axis offset of the ejector pin center, K represents the width of the guide box, J represents the ejector pin spacing; D2 represents the vertical distance from the second auxiliary line to the absolute coordinate, W F This indicates the width of the front flange of the pressure ring.

[0010] Furthermore, the process for obtaining the rightward and rearward dimensions of the mold is as follows: The first reference variable for calculating the rightward dimension of the mold is: The second reference variable for calculating the rightward dimension of the mold is: r2 = D3 + W R +N+K; If all ejector pins avoid the impact, when r1 < r2, the rightward dimension of the mold R = r1 + J; when r1 ≥ r2, the rightward dimension of the mold R = r1; If all ejector pins do not avoid the impact, the rightward dimension of the mold R = r2; The first reference variable for calculating the rearward dimension of the mold: The second reference variable for calculating the backward dimension of the mold: b2 = D4 + W B +N; If all ejector pins avoid the impact, when b1 < b2, the mold's rear dimension B = b1 + J; when b1 ≥ b2, the mold's rear dimension B = b1; if all ejector pins do not avoid the impact, the mold's rear dimension B = b2; where, round() function represents the rounding function, N represents the width of the pressure plate surface, ΔY represents the Y-axis offset of the ejector pin center, J represents the ejector pin spacing, K represents the guide box width; D4 represents the vertical distance from the fourth auxiliary line to the absolute coordinate, W B The width of the back flange of the pressure ring is indicated by D3, and the vertical distance from the third auxiliary line to the absolute coordinate is indicated by W. R This indicates the width of the right flange of the pressure ring.

[0011] Furthermore, the process of obtaining the first intermediate value F′ is as follows: F′=min(F,F s The process of obtaining the second intermediate value B′ is as follows: B′=max(B, B s ); where F represents the forward dimension of the mold, F s B represents the forward dimension of the upper mold base, and B represents the backward dimension of the mold.s This indicates the rearward dimension of the upper mold base.

[0012] Furthermore, the process for obtaining the end width is as follows: The mold type is determined based on the overall mold dimensions. Mold types include small molds, medium molds, large molds, and extra-large molds. When the mold type is a small mold, the end width is 280mm; when the mold type is a medium mold, the end width is 285mm; when the mold type is a large mold, the end width is 310mm; and when the mold type is an extra-large mold, the end width is 330mm.

[0013] Furthermore, it also includes a lifting lug selection step: it also includes selecting the shape and size of the lifting lug according to the mold type, the lifting lug including the lifting rod, and obtaining the diameter of the lifting rod according to the shape and size of the lifting lug.

[0014] To achieve the above-mentioned objectives of the present invention, according to a second aspect of the present invention, the present invention provides a mold base lifting lug positioning system, including a calculation module and an output module; the calculation module is used to obtain the position information of the lifting lug using any of the above-mentioned mold base lifting lug positioning methods; the output module is used to output the position of the lifting lug.

[0015] The technical principle and beneficial effects of this invention are as follows: This solution obtains the position information of each lifting lug by acquiring mold parameters related to the mold base lifting lugs. It can accurately position each lifting lug without manual design, debugging, and multiple modifications, avoiding mold base instability during lifting or interference and collisions between the lifting rope and other installed components, thus preventing impact on mold base installation. For each input mold parameter, different lifting lug position information can be obtained, enabling rapid changes in lifting lug position information through numerical variations. Compared with existing technologies, this invention eliminates the need for repeated virtual experiments to verify and modify the lifting lug positions, quickly and accurately calculating the lifting lug position information, saving manpower and time, improving the positioning accuracy and efficiency of the lifting lugs, and thus improving mold installation efficiency. Attached Figure Description

[0016] Figure 1 This is a flowchart illustrating a method for positioning a mold base lifting lug according to the present invention;

[0017] Figure 2 This is a schematic diagram of the lifting lug position structure after positioning based on the location information according to the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the present invention after the lifting lug is installed on the upper mold base;

[0019] Figure 4 This is a three-view schematic diagram of the lifting lug of the present invention;

[0020] Figure 5This is a schematic diagram showing the positions of the first auxiliary line, the second auxiliary line, the third auxiliary line, and the fourth auxiliary line of the present invention;

[0021] Figure 6 This is a table diagram showing the implementation standards of the lifting lugs of this invention;

[0022] Figure 7 This is a schematic diagram of the structure of a mold base lifting lug positioning system according to the present invention.

[0023] Reference numerals: 1. Lifting lug; 2. Mold base; 3. Lifting rod; 11. First auxiliary line; 12. Second auxiliary line; 13. Third auxiliary line; 14. Fourth auxiliary line. Detailed Implementation

[0024] 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.

[0025] 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.

[0026] In the description of this invention, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components. They can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0027] Example 1

[0028] As attached Figure 1 As shown, this embodiment provides a method for positioning the lifting lug of a mold base, including the following steps:

[0029] Step 1: Obtain mold parameters, including end width, left dimension of mold, forward dimension of mold, height of mold centerline from the bed, x-axis movement of the first lifting lug, main rib thickness, center inner space value, center lower space value, lower space value adjustment amount, and end forward adjustment amount;

[0030] Step 2: Obtain the position information of the first lifting lug in the absolute coordinate system based on the model parameters. Mirror the first lifting lug with respect to the absolute coordinate origin to obtain the position information of the second lifting lug. Mirror the first lifting lug with respect to the absolute x-axis to obtain the position information of the third lifting lug. Mirror the position information of the first lifting lug with respect to the absolute y-axis to obtain the position information of the fourth lifting lug. (See attached image) Figure 2 As shown, the center point of the lifting rod of the lifting lug 1 is placed at the position of the lifting lug 1 to position the lifting lug 1.

[0031] Specifically, the absolute coordinate system usually refers to the original coordinate system in 3D software. Before creating and drawing other parts, the product needs to be imported into the absolute coordinate system, and other parts are drawn and created based on the positional relationship between the product and the absolute coordinate system.

[0032] Specifically, the end is one of the components of the mold. The x-axis movement of the first lifting lug represents the movement of the first lifting lug in the positive x-axis direction in the absolute coordinate system. The main rib thickness represents the thickness value of the main rib in the mold's reinforcing ribs. The left dimension of the mold represents the basic dimension of the mold in the negative x-axis direction with the origin of the absolute coordinate system as the center. The forward dimension of the mold represents the basic dimension of the mold in the negative y-axis direction with the origin of the absolute coordinate system as the center. The center inner space value, center lower space value, and lower space value adjustment amount are as follows: the center inner space value is the distance from the center of the lifting rod to the inner side of the lifting lug; the center lower space value is the distance from the center of the lifting rod to the bottom surface of the lifting lug; and the lower space value adjustment amount is the adjustable amount of the center lower space value. The forward adjustment amount of the end represents the adjustment amount of the end in the negative y-axis direction with the absolute coordinate system as the center.

[0033] In this embodiment, the four lugs 1 are usually distributed in the upper left, upper right, lower left, and lower right of the absolute coordinate system. The upper left lug is usually selected as the first lug. The mirroring process of the lugs is as follows: with the absolute coordinate y-axis as the reference, mirror the upper left lug to obtain the upper right lug; with the absolute coordinate x-axis as the reference, mirror the upper left lug to obtain the lower left lug; with the origin of the absolute coordinate system as the reference, mirror the upper left lug to obtain the lower right lug.

[0034] In other embodiments, the mirroring process of lug 1 can also be: using the absolute coordinate y-axis as a reference, mirror the upper left lug to obtain the upper right lug, and using the absolute coordinate x-axis as a reference, mirror the upper left lug and the upper right lug to obtain the lower left lug and the lower right lug.

[0035] In other embodiments, the mirroring process of the lugs can also be as follows: using the absolute x-axis as a reference, mirror the upper left lug to obtain the lower left lug; using the absolute y-axis as a reference, mirror the upper left lug and the lower left lug to obtain the upper right lug and the lower right lug.

[0036] Specifically, since the adjustment of other components in the mold can affect the position information of the lifting lug, the position information of the first lifting lug is set to include initial coordinates and offset coordinates. The offset coordinates are controlled according to the adjustment of other components to adjust the position of the lifting lug. Specifically, the steps to obtain the position information of the first lifting lug through the initial coordinates and offset coordinates are as follows:

[0037] The position information X value of the first lug: X1 = X s +X p ;

[0038] The position information of the first lug, Y value: Y1 = Y s +Y p ;

[0039] The position information Z-value of the first lug: Z1 = Z s +Z p ;

[0040] Among them, X s Y s Z s These represent the initial x, y, and z values, respectively; X p Y p Z p These represent the x, y, and z values ​​of the offset coordinates, respectively.

[0041] Specifically, the process of obtaining the initial coordinates is as follows:

[0042] Calculate the X value of the initial coordinates: X s =L+m+c1+n1;

[0043] Calculate the Y value of the initial coordinates:

[0044] Calculate the Z value of the initial coordinates: Z s =H2 + c2 + k2 + k′2;

[0045] Where L represents the leftward dimension of the mold, m represents the end width, c1 represents the first standard parameter, n1 represents the x-axis movement of the first lifting lug, F′ represents the first intermediate value, which is obtained based on the forward dimension of the mold, T2 represents the main rib thickness, k1 represents the center space value, and d f H2 represents the forward adjustment amount of the end head, H2 represents the height of the mold centerline from the bed, c2 represents the second standard parameter, k2 represents the lower center space value, and k′2 represents the lower space value adjustment amount; the first standard parameter and the second standard parameter are obtained according to the lifting lug execution standard.

[0046] In this embodiment, the forward adjustment amount of the end is preferably 100mm, the thickness of the main rib is preferably 40mm, and the height of the mold centerline from the bed is preferably 700mm. (See attached...) Figure 6 As shown, the adjustment amounts of the central inner space value, the central lower space value, and the lower space value are obtained according to the lifting lug execution standard.

[0047] Preferably, the mold parameters also include mold height, end rearward adjustment amount, mold rearward dimension, and mold rightward dimension; the end rearward adjustment amount represents the adjustment amount of the end in the positive y-axis direction with the origin of the absolute coordinate system as the center; the mold rearward dimension represents the basic dimension of the mold in the positive y-axis direction with the origin of the absolute coordinate system as the center; the mold rightward dimension represents the basic dimension of the mold in the positive x-axis direction with the origin of the absolute coordinate system as the center.

[0048] Specifically, the process of obtaining the offset coordinates is as follows:

[0049] Calculate the X value of the offset coordinate: X p = (H1-2H2) / 2;

[0050] Calculate the Y value of the offset coordinate: Y p = (L + R - 2n1) / 2;

[0051] Calculate the Z value of the offset coordinate: Z p =(F′+B′-d f +d b ) / 2;

[0052] Where H1 represents the mold height, H2 represents the height of the mold centerline from the bed, L represents the left dimension of the mold, R represents the right dimension of the mold, n1 represents the x-axis movement of the first lifting lug, F′ represents the first intermediate value, which is obtained from the forward dimension of the mold, B′ represents the second intermediate value, which is obtained from the backward dimension of the mold, and d f Indicates the forward adjustment amount at the end, d b This indicates the amount of rearward adjustment at the end. In this embodiment, the mold height is preferably 1000mm, the rearward adjustment amount at the end is preferably 100mm, and the x-axis movement of the first lifting lug is preferably -150mm to 150mm.

[0053] In this embodiment, the process of obtaining the end width is as follows: the mold type is obtained according to the overall size of the mold. The mold type includes small mold, medium mold, large mold and extra-large mold. When the mold type is small mold, the end width is 280mm; when the mold type is medium mold, the end width is 285mm; when the mold type is large mold, the end width is 310mm; when the mold type is extra-large mold, the end width is 330mm.

[0054] In this embodiment, the mold type is determined based on the sum of the left-hand and right-hand dimensions of the mold. The mold types are defined as follows: a mold with a sum of left-hand and right-hand dimensions less than or equal to 2000 mm is a small mold; a mold with a sum of left-hand and right-hand dimensions greater than 2000 mm but less than or equal to 3000 mm is a medium mold; a mold with a sum of left-hand and right-hand dimensions greater than 3000 mm but less than or equal to 4000 mm is a large mold; and a mold with a sum of left-hand and right-hand dimensions greater than 4000 mm is an extra-large mold.

[0055] As attached Figure 3 As shown, the lifting lug of the mold base is assumed to be the lifting lug of the upper mold base 2. The process of obtaining the first intermediate value and the second intermediate value is as follows: The process of obtaining the first intermediate value F′ is as follows: F′=min(F,F s The process of obtaining the second intermediate value B′ is as follows: B′=max(B, B s ); where F represents the forward dimension of the mold, F s B represents the forward dimension of the upper mold base, and B represents the backward dimension of the mold. s This indicates the rearward dimension of the upper mold base. In other embodiments, when the mold base lifting lug is the lifting lug of the lower mold base, the forward and rearward dimensions of the upper mold base are replaced with the forward and rearward dimensions of the lower mold base during the acquisition of the first and second intermediate values; and the lifting lug of the lower mold base needs to be installed in reverse.

[0056] As attached Figure 6 As shown, the lifting lug execution standards include CYTC and BAIC Qingniao; when the lifting lug execution standard is CYTC, the first standard parameter is 35mm and the second standard parameter is 50mm; when the lifting lug execution standard is BAIC Qingniao, the first standard parameter is 85mm and the second standard parameter is 10mm. In other embodiments, the lifting lug execution standard is selected manually, and the first and second standard parameters are set according to different lifting lug execution standards.

[0057] Preferably, the mold parameters also include the width of the left flange of the pressure ring, the width of the right flange of the pressure ring, the width of the front flange of the pressure ring, the width of the rear flange of the pressure ring, the width of the pressure profile, the X-axis offset of the ejector pin center, the Y-axis offset of the ejector pin center, the width of the guide box, and the ejector pin spacing.

[0058] In this embodiment, the process of obtaining the forward dimension and leftward dimension of the mold is as follows:

[0059] The first reference variable for calculating the forward dimension of the mold:

[0060] The second reference variable for calculating the forward dimension of the mold is: f2 = D2 + W F +N;

[0061] If the ejector pins make clearance, when f1 < f2, the forward dimension of the mold is F = f1 + J; when f1 ≥ f2, the forward dimension of the mold is F = f1.

[0062] If the ejector pins do not make any clearance, the forward dimension of the mold is F = f2;

[0063] The first reference variable for calculating the leftward dimension of the mold:

[0064] The second reference variable for calculating the leftward dimension of the mold: l2 = D1 + W L +N+K;

[0065] If the ejector pins are fully offset, when l1 < l2, the left dimension of the mold L = l1 + J; when l1 ≥ l2, the left dimension of the mold L = l1.

[0066] If the ejector pins do not make any clearance, the leftward dimension of the mold is L = l2;

[0067] Wherein, the round() function represents the rounding function, D1 represents the vertical distance from the first auxiliary line to the origin of the absolute coordinate system, and W... L The width of the left flange of the pressure ring is represented by N, the width of the pressure profile is represented by ΔX, the offset of the ejector pin center along the X-axis is represented by K, the width of the guide box is represented by J, and the ejector pin spacing is represented by D2, which represents the vertical distance from the second auxiliary line to the origin of the absolute coordinate system. F This indicates the width of the front flange of the pressure ring.

[0068] In this embodiment, the process of obtaining the rightward dimension and the rearward dimension of the mold is as follows:

[0069] The first reference variable for calculating the right-hand dimension of the mold:

[0070] The second reference variable for calculating the rightward dimension of the mold is: r2 = D3 + W R +N+K;

[0071] If the ejector pins make clearance, when r1 < r2, the rightward dimension of the mold R = r1 + J; when r1 ≥ r2, the rightward dimension of the mold R = r1.

[0072] If the ejector pin does not make any clearance, the rightward dimension of the mold is R = r2;

[0073] The first reference variable for calculating the backward dimension of the mold:

[0074] The second reference variable for calculating the backward dimension of the mold: b2 = D4 + W B +N;

[0075] If the ejector pins make clearance, when b1 < b2, the mold rear dimension B = b1 + J; when b1 ≥ b2, the mold rear dimension B = b1.

[0076] If the ejector pins do not make any clearance, the rear dimension of the mold B = b2;

[0077] Where, the `round()` function represents the rounding function, N represents the width of the pressure plate surface, ΔY represents the Y-axis offset of the ejector pin center, J represents the ejector pin spacing, K represents the guide box width; D4 represents the vertical distance from the fourth auxiliary line to the origin of the absolute coordinate system, W... B The width of the back flange of the pressure ring is indicated by D3, and the vertical distance from the third auxiliary line to the origin of the absolute coordinate system is indicated by W. R This indicates the width of the right flange of the pressure ring.

[0078] Specifically, the blank holder flange width refers to the minimum width from the edge of the blank holder flange to the blank line; the blank holder profile is the surface on which the blank holder presses the blank against the die, and the blank holder profile width represents the maximum width of this profile; the guide box width represents the width of the mold component - the guide box; the blank holder profile width, blank holder flange width, blank line, and mold stroke are obtained through the product process, the product is the item generated by the mold, and the blank line is the blank edge line before generation; the guide box and ejector pins are components of the mold, and there are multiple ejector pins in the mold, with the ejector pin spacing specifically being the distance between ejector pins; the guide box width and ejector pin spacing are given fixed values ​​based on customer requirements; in this embodiment, the guide box width is preferably 260mm, the ejector pin spacing is preferably 150mm, and the blank holder profile width is preferably 20mm.

[0079] Specifically, the Y-axis offset of the ejector pin center represents the offset of the origin of the mold center coordinate system from the center of the bed on the Y-axis, and the X-axis offset of the ejector pin center represents the offset of the origin of the mold center coordinate system from the center of the bed on the X-axis.

[0080] As attached Figure 5 As shown, the first auxiliary line, second auxiliary line, third auxiliary line, and fourth auxiliary line are obtained based on the billet line. The first auxiliary line 11 and the third auxiliary line 13 are parallel to the Y-axis in the absolute coordinate system, and the second auxiliary line 12 and the fourth auxiliary line 14 are parallel to the X-axis in the absolute coordinate system. The specific acquisition process is as follows: Obtain the distance value from the leftmost point of the billet line to the absolute Y-axis, and then round this distance value to the nearest five to obtain the first auxiliary line 11; Obtain the distance value from the top point of the billet line to the absolute Y-axis, and then round this distance value to the nearest five to obtain the second auxiliary line 12; Obtain the distance value from the rightmost point of the billet line to the absolute Y-axis, and then round this distance value to the nearest five to obtain the third auxiliary line 13; Obtain the distance value from the bottom point of the billet line to the absolute Y-axis, and then round this distance value to the nearest five to obtain the fourth auxiliary line 14.

[0081] The process of rounding to the nearest 5 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 to the nearest 5, and numbers greater than or equal to 2.5 become 5. Among numbers 5 to 10, numbers less than 7.5 become 5 after rounding to the nearest 5, and numbers greater than or equal to 7.5 become 10. For example, coordinate values ​​1 and 2.4 become 0 after rounding to the nearest 5, coordinate values ​​2.5 and 4 become 5, coordinate values ​​6 and 7.3 become 5, and coordinate values ​​7.6 and 9 become 10. The advantage of rounding to the nearest 5 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.

[0082] As attached Figure 4 As shown, it also includes selecting the shape and size of the lifting lug 1 according to the mold type. The lifting lug 1 includes a lifting rod 3. The diameter of the lifting rod 3 is obtained according to the shape and size of the lifting lug 1, and the diameter of the lifting rod 3 is 40mm to 80mm.

[0083] Example 2

[0084] As attached Figure 7 As shown in the figure, this embodiment discloses a mold base lifting lug positioning system, characterized in that it includes a calculation module and an output module; the calculation module is used to obtain the position information of the lifting lug according to a mold base lifting lug positioning method of the above embodiment; the output module is used to output the position of the lifting lug.

[0085] 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.

[0086] 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 mold base lifting lug, characterized in that, comprising the following steps: acquiring mold parameters, wherein the mold parameters include end head width, mold leftward dimension, mold forward dimension, height from mold center line to the bed platform, x-direction movement amount of the first lifting lug, main reinforcement thickness, central inner space value, central lower space value, lower space value adjustment amount, and end head forward adjustment amount; acquiring position information of the first lifting lug in an absolute coordinate system according to the mold parameters, mirroring the first lifting lug with respect to the absolute coordinate origin to obtain position information of a second lifting lug, mirroring the first lifting lug with respect to the x-axis of the absolute coordinate to obtain position information of a third lifting lug, and mirroring the position information of the first lifting lug with respect to the y-axis of the absolute coordinate to obtain position information of a fourth lifting lug.

2. The method for positioning a mold base lifting lug as described in claim 1, characterized in that, The position information of the first lifting lug includes initial coordinates, and the process of acquiring the initial coordinates is as follows: Calculate the X value of the initial coordinates: X s =L+m+c1+n1; Calculate the Y value of the initial coordinates: Calculate the Z value of the initial coordinates: Z s =H2 + c2 + k2 + k′2; Where L represents the leftward dimension of the mold, m represents the end width, c1 represents the first standard parameter, n1 represents the x-axis movement of the first lifting lug, F' represents the first intermediate value, which is obtained based on the forward dimension of the mold, T2 represents the main rib thickness, k1 represents the center space value, and d f H2 represents the forward adjustment amount of the end, H2 represents the height of the mold centerline from the bed, c2 represents the second standard parameter, k2 represents the center lower space value, and k'2 represents the lower space value adjustment amount.

3. The method for positioning the mold base lifting lug as described in claim 2, characterized in that, The mold parameters further include mold height, end head backward adjustment amount, mold backward dimension and mold rightward dimension; the position information of the first lifting lug further includes offset coordinates, and the position information of the first lifting lug is obtained according to the initial coordinates and the offset coordinates; the process of acquiring the offset coordinates is as follows: Calculate the X value of the offset coordinate: X p =(H1-2H2) / 2: Calculate the Y value of the offset coordinate: Y p = (L + R - 2n1) / 2; Calculate the Z value of the offset coordinate: Z p =(F′+B'-d f +d b ) / 2; Where H1 represents the mold height, H2 represents the height of the mold centerline from the bed, L represents the left dimension of the mold, R represents the right dimension of the mold, n1 represents the x-axis movement of the first lifting lug, F' represents the first intermediate value, which is obtained from the forward dimension of the mold, B' represents the second intermediate value, which is obtained from the backward dimension of the mold, and d f Indicates the forward adjustment amount at the end, d b This indicates the amount of backward adjustment at the end.

4. The method for positioning the mold base lifting lug as described in claim 3, characterized in that, The specific steps of acquiring the position information of the first lifting lug according to the initial coordinates and the offset coordinates are as follows: The position information X value of the first lug: X1 = X s +X p ; The position information of the first lug, Y value: Y1 = Y s +Y p ; The position information Z-value of the first lug: Z1 = Z s +Z p .

5. A method for positioning a mold base lifting lug as described in claim 1, 2, 3, or 4, characterized in that, The process of acquiring the mold forward dimension and the mold leftward dimension is as follows: The first reference variable for calculating the forward dimension of the mold: The second reference variable for calculating the forward dimension of the mold is: f2 = D2 + W F +N; If the full ejector rod is avoided, when f1<f2, the mold forward dimension F = f1+J; when f1≥f2, the mold forward dimension F = f1; If the full ejector rod is not avoided, the mold forward dimension F = f2; The first reference variable for calculating the leftward dimension of the mold: The second reference variable for calculating the leftward dimension of the mold: l2 = D1 + W L +N+K; If the full ejector rod is avoided, when l1<l2, the mold leftward dimension L = l1+J; when l1≥l2, the mold leftward dimension L = l1; If the full ejector rod is not avoided, the mold leftward dimension L = l2; Where, the `round()` function represents the rounding function, D1 represents the vertical distance from the first auxiliary line to the absolute coordinate, and W... L N represents the width of the left flange of the pressure ring, N represents the width of the pressure profile, ΔX represents the X-axis offset of the ejector pin center, K represents the width of the guide box, J represents the ejector pin spacing; D2 represents the vertical distance from the second auxiliary line to the absolute coordinate, W F This indicates the width of the front flange of the pressure ring.

6. A method for positioning a mold base lifting lug as described in claim 3 or 4, characterized in that, The process of acquiring the mold rightward dimension and the mold backward dimension is as follows: The first reference variable for calculating the right-hand dimension of the mold: The second reference variable for calculating the rightward dimension of the mold is: r2 = D3 + W R +N+K; If the full ejector rod is avoided, when r1<r2, the mold rightward dimension R = r1+J; when r1≥r2, the mold rightward dimension R = r1; If the full ejector rod is not avoided, the mold rightward dimension R = r2; The first reference variable for calculating the backward dimension of the mold: The second reference variable for calculating the backward dimension of the mold: b2 = D4 + W B +N; If the full ejector rod is avoided, when b1<b2, the mold backward dimension B = b1+J; when b1≥b2, the mold backward dimension B = b1; If the full ejector rod is not avoided, the mold backward dimension B = b2; Wherein, the `round()` function represents the rounding function, N represents the width of the pressure plate surface, ΔY represents the Y-axis offset of the ejector pin center, J represents the ejector pin spacing, K represents the guide box width; D4 represents the vertical distance from the fourth auxiliary line to the absolute coordinate, W... B The width of the back flange of the pressure ring is indicated by D3, and the vertical distance from the third auxiliary line to the absolute coordinate is indicated by W. R This indicates the width of the right flange of the pressure ring.

7. The method for positioning a mold base lifting lug as described in claim 3, characterized in that, The process of obtaining the first intermediate value F' is as follows: F' = min(F, F s ); The process of obtaining the second intermediate value B' is as follows: B' = max(B, B s ); Where F represents the forward dimension of the mold, F s B represents the forward dimension of the upper mold base, and B represents the backward dimension of the mold. s This indicates the rearward dimension of the upper mold base.

8. A method for positioning a mold base lifting lug as described in claims 1, 2, 3, 4, 7, or 8, characterized in that, The process of acquiring the end head width is as follows: the mold type is acquired according to the overall dimension of the mold, and the mold type includes small-sized mold, medium-sized mold, large-sized mold and extra-large-sized mold; When the mold type is a small-sized mold, the end head width is 280mm; When the mold type is a medium-sized mold, the end head width is 285mm; When the mold type is a large-sized mold, the end head width is 310mm; When the mold type is an extra-large-sized mold, the end head width is 330mm.

9. The method for positioning a mold base lifting lug as described in claim 8, characterized in that, The method further comprises a lifting lug selection step: selecting the shape and size of the lifting lug according to the mold type, wherein the lifting lug comprises a lifting rod, and the diameter of the lifting rod is acquired according to the shape and size of the lifting lug.

10. A mold base lifting lug positioning system, characterized in that, comprising a calculation module and an output module; the calculation module is configured to acquire the position information of the lifting lug according to the mold base lifting lug positioning method described in any one of claims 1 to 9; the output module is configured to output the position of the lifting lug.

Images