Heavy precision test mold press, Press rigidity adjustment method, and storage medium

Abstract

The embodiment of the application relates to the technical field of presses, and discloses a heavy-duty precise trial die press, a press rigidity adjusting method and a storage medium, the heavy-duty precise trial die press comprises a workbench assembly, a plurality of wireless measurement sensors, a base assembly and a compensation assembly. The heavy-duty precise trial die press provided by the embodiment of the application can realize rigidity adjustment, the heavy-duty precise trial die press can realize the working state of simulating different rigidity presses, the adjusted die is more suitable for user demand, the die adjustment workload is greatly reduced, the production efficiency is improved, the working strength of workers is reduced, the stamping part forming quality is improved, and the economic benefit is greatly improved.

Description

TECHNICAL FIELD

[0001] The embodiment of the present application relates to the technical field of press machine, in particular to a heavy precise die testing press machine, a press machine rigidity adjusting method and a storage medium. BACKGROUND

[0002] The die testing press machine is used for simulating stamping processing before new dies are delivered from a die manufacturing factory, including die closing and opening testing, pressure and load testing, etc. For precise dies with high requirements for stamping part forming precision, die testing needs to be carried out on a mechanical press machine with higher rigidity and faster production rhythm, i.e. a precise die testing press machine. However, when the die manufacturing factory uses the precise die testing press machine, there are the following two limitations: 1. The precise die testing press machine itself has high rigidity, while after the dies are delivered, they may be produced on different press machines, including mechanical press machines or hydraulic press machines, and the rigidity of the press machines is different from that of the die testing press machine, so that the dies need to be re-adjusted after being delivered to the user. 2. The rigidity of the precise die testing press machine is fixed, and the dies cannot be adjusted according to the requirements of the user to adapt to dies produced on press machines with different rigidity, and the dies adjusted on a press machine with high rigidity need to be re-adjusted when used on a press machine with low rigidity.

[0003] Due to the above limitations, a large amount of die re-adjustment work needs to be carried out before the new dies adjusted on the precise die testing press machine are put into use, and data shows that the cost of die re-adjustment carried out by a large die manufacturing factory at the user's place can reach ten million yuan per year, and the labor and time cost is huge. SUMMARY

[0004] A series of simplified concepts are introduced in the part of the summary, which will be further described in detail in the part of the specific embodiments. This part of the present application does not mean to try to limit the key features and necessary technical features of the claimed technical solution, and does not mean to try to determine the protection scope of the claimed technical solution.

[0005] The present application aims to solve at least one of the problems in the prior art or related art.

[0006] To this end, the first aspect of the present application provides a heavy precise die testing press machine.

[0007] The second aspect of the present application provides a press machine rigidity adjusting method.

[0008] The third aspect of the present application provides a computer readable storage medium.

[0009] Therefore, according to the first aspect of the embodiment of the present application, a heavy precise die testing press machine is provided, which comprises:

[0010] a workbench assembly comprising a table plate and a frame structure arranged below the table plate;

[0011] a base assembly, the workbench assembly being detachably connected to the base assembly;

[0012] a compensation assembly comprising a guide mechanism and an adjusting unit, the guide mechanism and the adjusting unit being arranged in the base assembly, the adjusting unit comprising an adjusting support screw as an output end of the adjusting unit, the adjusting unit being configured to adjust a distance between the adjusting support screw and the table plate so as to move the adjusting support screw closer to or farther away from the table plate, the adjusting support screw passing through the guide mechanism;

[0013] a plurality of wireless measurement sensors arranged on the adjusting support screw and configured to detect a deformation amount of the table plate.

[0014] In an embodiment, the adjusting unit further comprises:

[0015] a driving member;

[0016] a worm gear mechanism, an output end of the driving member being connected to the worm gear mechanism, an output end of the worm gear mechanism being connected to the adjusting support screw.

[0017] In an embodiment, the base assembly comprises a bottom plate, a top plate and a frame, the compensation assembly being arranged on the bottom plate, the frame being connected to the bottom plate, the top plate being arranged on a top of the frame, the workbench assembly being detachably connected to the top plate.

[0018] In an embodiment, the adjusting unit further comprises:

[0019] a bracket, the worm gear mechanism and the driving member being arranged on the bracket, the bracket being connected to the bottom plate.

[0020] In an embodiment, the heavy-duty precision die testing press further comprises:

[0021] a communication receiver, the communication receiver being connected to the plurality of wireless measurement sensors;

[0022] an analysis module, the analysis module being connected to the communication receiver, the analysis module being configured to determine an operation parameter of the compensation assembly based on a detection result of the wireless measurement sensors and an expected rigidity value of the workbench assembly.

[0023] According to the second aspect of the embodiments of the present application, a press rigidity adjusting method is provided, which is applied to the heavy precise trial die press as described in any of the above technical solutions, and the press rigidity adjusting method comprises:

[0024] Step S201: setting a die on the table plate, performing a trial running program to complete a stamping stroke, and obtaining displacement values measured by the plurality of wireless measurement sensors, and simultaneously obtaining a stamping force value;

[0025] Step S202: obtaining a workbench assembly rigidity value based on the displacement values, and obtaining a base assembly rigidity value based on the stamping force value;

[0026] Step S203: adjusting the distance between the adjusting support screw and the table plate based on the expected rigidity value of the workbench assembly, the rigidity value of the workbench assembly and the rigidity value of the base assembly, and compensating the rigidity of the workbench assembly.

[0027] In a possible implementation, the step of obtaining the rigidity value of the workbench assembly based on the displacement values comprises: calculating the rigidity value of the workbench assembly by the following formula:

[0028]

[0029] wherein, the rigidity value of the workbench assembly is, the displacement value is, the length of the workbench assembly is.

[0030] In a possible implementation, the step of obtaining the rigidity value of the base assembly based on the stamping force value comprises: calculating the rigidity value of the base assembly by the following formula:

[0031]

[0032] wherein, μ 底 the rigidity value of the base assembly is, δ 底 the maximum deflection of the base assembly is, δ 1 is the maximum deflection of the base assembly caused by the bending normal stress, δ 2 is the maximum deflection of the base assembly caused by the bending shear stress, L the pitch of the tension bolts is;

[0033]

[0034] wherein, P the stamping force value is, L the pitch of the tension bolts is, E the elastic modulus is,J is the cross-sectional moment of inertia of the base assembly,

[0035]

[0036] wherein, P is the punch force value, L is the bolt spacing, F is the cross-sectional area of the base assembly, G is the shear modulus, and a is the ratio of the maximum shear stress to the average shear stress.

[0037] In one possible implementation, based on the expected rigidity value of the table assembly, the rigidity value of the table assembly and the rigidity value of the base assembly, the step of adjusting the distance between the adjusting support screw and the table plate to compensate for the rigidity of the table assembly comprises: calculating the distance that the adjusting support screw needs to move by the following formula, and adjusting the distance between the adjusting support screw and the table plate based on the moving distance to compensate for the rigidity of the table assembly:

[0038]

[0039] wherein, θ is an adjustment parameter, is the rigidity value of the table assembly, ω is the expected rigidity value of the table assembly, if θ≥1, no adjustment is made; if θ<1, the compensation assembly is started;

[0040]

[0041] wherein, S is the moving distance, δ 工 is the displacement value, K is a compensation mapping relationship, δ 底 is the maximum deflection of the base assembly, ω is the expected rigidity value of the table assembly, L 工 is the length of the table assembly;

[0042]

[0043] wherein, K is a compensation mapping relationship, μ 工 is the rigidity value of the table assembly, μ 底 is the rigidity value of the base assembly.

[0044] According to a third aspect of the embodiments of the present application, a computer readable storage medium is provided, the computer readable storage medium stores a computer program, and the computer program implements the press rigidity adjustment method according to any one of the above technical solutions.

[0045] Compared with the prior art, the present application at least has the following beneficial effects:

[0046] The heavy precision test die press provided by the embodiment of the present application comprises a workbench assembly, a base assembly, a compensation assembly and a plurality of wireless measurement sensors. Based on this, during the use of the heavy precision test die press, when the test die adjustment and die adjustment work is performed, the die can be arranged on the table plate, and then the test die is performed. The detection results of the plurality of wireless measurement sensors are obtained during the test die process to obtain the deformation amount of the table plate. Then, based on the deformation amount, the actual rigidity value of the table plate can be obtained. The actual rigidity value is compared with the expected rigidity value required by the press. The rigidity compensation mode of the table plate can be determined. If the actual rigidity value is lower than the expected rigidity value, the adjusting unit can drive the adjusting support screw to move in the direction close to the table plate to increase the rigidity of the table plate. Based on this, the heavy precision test die press provided by the embodiment of the present application can realize the adjustment of the rigidity, so that the heavy precision test die press can realize the working state of the different rigidity presses, the die adjusted can be more suitable for the user demand, the die adjustment workload is greatly reduced, the production efficiency is improved, the working strength of the laborer is reduced, the forming quality of the stamping part is improved, and the economic benefit is greatly improved.

[0047] The above description is only a summary of the technical scheme of the present application. In order to more clearly understand the technical means of the present application, the content of the specification can be implemented, and in order to make the above and other purposes, characteristics and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described below. BRIEF DESCRIPTION OF DRAWINGS

[0048] By reading the detailed description of the preferred embodiments below, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of illustrating the preferred embodiments and are not considered limiting on the present application. Moreover, the same reference symbols are used throughout the drawings to represent the same parts. In the drawings:

[0049] Figure 1 A schematic structural diagram of a heavy precision test die press provided by an embodiment of the present application;

[0050] Figure 2 A schematic structural diagram of the arrangement position of a wireless measurement sensor of a heavy precision test die press provided by an embodiment of the present application;

[0051] Figure 3 A schematic step flow chart of a press rigidity adjustment method provided by an embodiment of the present application;

[0052] Figure 4 A schematic structural block diagram of a computer readable storage medium provided by the present application.

[0053] Among them, Figure 1 , Figure 2 and Figure 4Correspondence between reference numerals and component names is as follows:

[0054] 110 workbench assembly, 120 wireless measurement sensor, 130 base assembly, 140 compensation assembly, 150 communication receiver, 160 analysis module;

[0055] 111 table plate, 112 frame structure;

[0056] 131 bottom plate, 132 top plate, 133 frame;

[0057] 141 guide mechanism, 142 adjustment unit, 1421 driving member, 1422 worm and gear mechanism, 1423 adjustment support screw, 1424 bracket;

[0058] 301 computer readable storage medium, 302 computer program. DETAILED DESCRIPTION

[0059] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the technical solutions provided by the present application. However, it will be apparent to one of ordinary skill in the art that the technical solutions provided by the present application can be practiced without one or more of these specific details.

[0060] It should be noted that the terms used herein are only for the purpose of describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. In addition, it should be understood that when the terms "comprise" and / or "include" are used in the specification, it indicates the presence of the features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or combinations thereof.

[0061] Now, exemplary embodiments according to the present application will be described in greater detail with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in various different forms, and should not be construed as being limited to the embodiments set forth herein. It should be understood that the embodiments are provided so that the present disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those of ordinary skill in the art.

[0062] As Figure 1 and Figure 2As shown, according to the first aspect of the embodiment of the present application, a heavy precision test die press is provided, comprising: a workbench assembly 110, the workbench assembly 110 comprising a table plate 111 and a frame structure 112 arranged below the table plate 111; a base assembly 130, the workbench assembly 110 being detachably connected to the base assembly 130; a compensation assembly 140, the compensation assembly 140 comprising: a guide mechanism 141 and an adjusting unit 142, the guide mechanism 141 and the adjusting unit 142 being arranged in the base assembly 130, the adjusting unit 142 comprising an adjusting support screw 1423, the adjusting support screw 1423 being an output end of the adjusting unit 142, the adjusting unit 142 being configured to adjust a distance between the adjusting support screw 1423 and the table plate 111, so that the adjusting support screw 1423 is close to or away from the table plate 111, the adjusting support screw 1423 passing through the guide mechanism 141; a plurality of wireless measurement sensors 120, the plurality of wireless measurement sensors 120 being arranged on the adjusting support screw 1423 and configured to detect a deformation amount of the table plate 111.

[0063] The heavy precision test die press provided by the embodiment of the present application comprises the workbench assembly 110, the base assembly 130, the compensation assembly 140 and the plurality of wireless measurement sensors 120. Based on this, during the use of the heavy precision test die press, when the test die adjustment work is performed, the mold can be arranged on the table plate 111, and then the test die is performed. The detection results of the plurality of wireless measurement sensors 120 are obtained during the test die process, so as to obtain the deformation amount of the table plate 111. Then, based on the deformation amount, the actual rigidity value of the table plate 111 can be obtained. The actual rigidity value is compared with the expected rigidity value required by the press, so that the rigidity compensation mode of the table plate 111 can be determined. If the actual rigidity value is lower than the expected rigidity value, the adjusting unit 142 can drive the adjusting support screw 1423 to move towards the table plate 111, so as to increase the rigidity of the table plate 111. Based on this, the heavy precision test die press provided by the embodiment of the present application can realize the adjustment of the rigidity, so that the heavy precision test die press can realize the working state of the different rigidity presses, the mold adjusted is more suitable for the user demand, the mold adjustment workload is greatly reduced, the production efficiency is improved, the working strength of the laborer is reduced, the forming quality of the stamping part is improved, and the economic benefit is greatly improved.

[0064] In the specific working process, the compensation assembly 140 can be restored to the initial position, the top surface of the adjusting support screw 1423 is adjusted to be 2mm above the bottom surface of the table plate 111, the zero point of the wireless measurement sensor 120 is 3mm above the top surface of the adjusting support screw 1423 when the wireless measurement sensor 120 is installed, and the pressure value of the wireless measurement sensor 120 is 1mm when the compensation assembly 140 is restored to the initial position; a trial operation program is executed to complete one stamping stroke, the displacement values and the stamping force values measured by the plurality of wireless measurement sensors 120 are obtained, and the rigidity values of the table assembly and the base assembly are obtained through calculation. The actual rigidity value obtained is compared with the expected rigidity value required by the press, so that the rigidity compensation mode of the table plate 111 can be determined. If the actual rigidity value is lower than the expected rigidity value, the adjusting unit 142 can be adjusted to drive the adjusting support screw 1423 to move towards the table plate 111 to increase the rigidity of the table plate 111. Based on this, the heavy-duty precision trial die press provided by the embodiment of the present application can realize the adjustment of the rigidity, so that the heavy-duty precision trial die press can realize the working state of the die press with different rigidity, the adjusted die can better meet the user's demand, the workload of die repairing and adjusting can be greatly reduced, the production efficiency can be improved, the working strength of the worker can be reduced, the forming quality of the stamping part can be improved, and the economic benefit can be greatly improved.

[0065] As shown in Figure 1 and Figure 2 , the heavy-duty precision trial die press provided by the embodiment of the present application includes a detachably connected table assembly 110 and a base assembly 130, based on which the heavy-duty precision trial die press can be modularly assembled, and at the same time, one base assembly 130 can adjust the rigidity of different table assemblies 110. Specifically, the adjusting support screw 1423 of the compensation assembly 140 is arranged in the table assembly 110, and the adjusting unit 142 is arranged in the base assembly 130. When the table assembly 110 and the base assembly 130 are separated, the adjusting support screw 1423, the plurality of wireless measurement sensors 120 and the table assembly 110 are synchronously separated, and the base assembly 130 and the adjusting unit 142 are synchronously separated, which is beneficial to the modular assembly of the heavy-duty precision trial die press and improves the universality of the heavy-duty precision trial die press.

[0066] Through the arrangement of the guide mechanism 141, the movement of the adjusting support screw 1423 is more reliable and stable.

[0067] As shown in Figure 1 and Figure 2 , in a possible implementation, the adjusting unit 142 includes a driving member 1421, a worm and gear mechanism 1422, and an output end of the driving member 1421 is connected to the worm and gear mechanism 1422. An output end of the worm and gear mechanism 1422 is connected to the adjusting support screw 1423.

[0068] In the technical solution, the structure of the adjusting unit 142 is further provided, the adjusting unit 142 can include a driving member 1421, a worm and gear mechanism 1422 and an adjusting support screw 1423, based on which, in the working process, the worm and gear mechanism 1422 can be driven to move by starting the driving member 1421, and then the circular motion of the driving member 1421 is converted into linear motion, so that the adjusting support screw 1423 can move in the up-down direction relative to the base assembly 130, and then the adjusting support screw 1423 can move close to or away from the table plate 111.

[0069] It can be understood that the driving member 1421 can be a servo motor or a servo motor configured with a speed reducer.

[0070] It can be understood that the adjusting support screw 1423 moves up and down in the vertical direction in the guide mechanism 141 to move close to or away from the table plate 111, and the guide mechanism 141 plays a guiding role to improve the guiding accuracy.

[0071] As shown in Figure 1 and Figure 2 , in a possible implementation, the base assembly 130 includes a bottom plate 131, a top plate 132 and a frame 133, the bottom plate 131 is used to install the bracket 1424, the top plate 132 is used to support the workbench assembly 110, and the frame 133 makes the base assembly 130 into a whole welded structure.

[0072] In the technical solution, the style of the base assembly 130 is further provided, the base assembly 130 can include a bottom plate 131, a top plate 132 and a frame 133, in combination with the structure of the workbench assembly 110, that is, along the height direction of the heavy-duty precision mold pressing machine, the workbench assembly 110 can include a table plate 111, a frame structure 112, and then the top plate 132 and the bottom plate 131 of the base assembly 130, the guide mechanism 141 is arranged on the frame 133 of the base, and the guide mechanism 141 plays a guiding role to the adjusting support screw 1423, so that the transmission of the adjusting support screw 1423 is more accurate, and the adjusting support screw 1423 can better compensate the rigidity of the table plate 111.

[0073] As shown in Figure 1 and Figure 2 , in a possible implementation, the adjusting unit 142 further includes a bracket 1424, the worm and gear mechanism 1422 and the driving member 1421 are arranged on the bracket 1424, and the bracket 1424 is connected to the bottom plate 131.

[0074] In the technical solution, the adjusting unit 142 further comprises a support 1424, the worm and gear mechanism 1422 and the driving member 1421 are connected to the bottom plate 131 through the support 1424, so that the fixing of the worm and gear mechanism 1422 and the driving member 1421 is more reliable, and the assembly of the heavy-duty precision test mold press is facilitated.

[0075] As shown in Figure 1 and Figure 2 In a possible implementation, the heavy-duty precision test mold press further comprises a communication receiver 150 connected to the plurality of wireless measurement sensors 120, and an analysis module 160 connected to the communication receiver 150, the analysis module 160 being configured to determine the operation parameters of the compensation assembly 140 based on the detection results of the wireless measurement sensors 120 and the expected rigidity value of the workbench assembly 110. In this way, the control of the heavy-duty precision test mold press can be intelligentized and accurate, and the driving of the adjusting unit 142 can be more accurate.

[0076] As shown in Figure 3 According to a second aspect of the embodiments of the present application, a press rigidity adjusting method is provided, which is applied to the heavy-duty precision test mold press according to any of the above technical solutions, and the press rigidity adjusting method comprises the following steps:

[0077] Step S201: placing a mold on the table plate, executing a test running program to complete a stamping stroke, and obtaining displacement values measured by the plurality of wireless measurement sensors, and simultaneously obtaining a stamping force value; it can be understood that a strain gauge can be arranged on the column of the heavy-duty precision test mold press, and the stamping force value can be obtained through the strain gauge.

[0078] Step S202: obtaining a workbench assembly rigidity value based on the displacement value; and obtaining a base assembly rigidity value based on the stamping force value.

[0079] Step S203: adjusting the distance between the adjusting support screw and the table plate based on the expected rigidity value of the workbench assembly, the workbench assembly rigidity value and the base assembly rigidity value, and compensating the rigidity of the workbench assembly.

[0080] The press rigidity adjusting method provided by the embodiments of the present application is applied to the heavy-duty precision test mold press according to any of the above technical solutions, and therefore has all the beneficial effects of the heavy-duty precision test mold press according to the above technical solutions.

[0081] The method for adjusting the rigidity of the press provided by the embodiments of the present application can set the mold on the bed plate 111, then perform mold testing, obtain the detection results of the plurality of wireless measurement sensors 120 during the mold testing to learn the deformation amount of the bed plate 111, then learn the rigidity value of the worktable assembly based on the deformation amount, and then compare the actual rigidity value with the expected rigidity value required by the press to determine the rigidity compensation mode of the bed plate 111. If the actual rigidity value is lower than the expected rigidity value, the adjustment unit can drive the adjustment support screw 1423 to move towards the bed plate 111 to increase the rigidity of the bed plate 111. The heavy-duty precision mold testing press provided by the embodiments of the present application can adjust the rigidity, simulate the working state of a press with different rigidity, make the adjusted mold more suitable for user needs, greatly reduce the workload of mold adjustment, improve production efficiency, reduce the working intensity of workers, improve the forming quality of the stamping parts, and greatly improve economic benefits.

[0082] In a possible implementation, the step of obtaining the rigidity value of the worktable assembly based on the displacement value comprises: obtaining the rigidity value of the worktable assembly by the following formula:

[0083]

[0084] wherein, μ 工 is the rigidity value of the worktable assembly, δ 工 is the displacement value, L 工 is the length of the worktable assembly.

[0085] In the technical solution, the specific way of determining the rigidity value of the worktable assembly is further provided, so that the determination of the actual rigidity value of the bed plate 111 is more accurate, and the reliability of the rigidity adjustment of the bed plate 111 is ensured.

[0086] In a possible implementation, the step of obtaining the rigidity value of the base assembly based on the stamping force value comprises: obtaining the rigidity value of the base assembly by the following formula:

[0087]

[0088] wherein, μ 底 is the rigidity value of the base assembly, δ 底 is the maximum deflection of the base assembly, δ 1 is the maximum deflection of the base assembly caused by the bending normal stress, δ 2 is the maximum deflection of the base assembly caused by the bending shear stress, L is the pitch of the tension bolts;

[0089]

[0090] wherein, P is the punching force value, L is the bolt spacing, E is the elastic modulus, J is the base assembly cross-sectional moment of inertia;

[0091]

[0092] wherein, P is the punching force value, L is the bolt spacing, F is the base assembly cross-sectional area, G is the shear modulus, and a is the ratio of the maximum shear stress to the average shear stress.

[0093] In the technical solution, a specific way of determining the base assembly stiffness value is further provided, so that the actual stiffness value of the table plate 111 is determined more accurately, and the reliability of the stiffness adjustment of the table plate 111 is ensured.

[0094] In a feasible implementation, based on the expected stiffness value of the workbench assembly, the workbench assembly stiffness value and the base assembly stiffness value, the step of adjusting the distance between the adjusting support screw and the table plate to compensate for the stiffness of the workbench assembly includes: calculating the required moving distance of the adjusting support screw by the following formula, and adjusting the distance between the adjusting support screw and the table plate based on the moving distance to compensate for the stiffness of the workbench assembly:

[0095]

[0096] wherein, θ is an adjustment parameter, is the workbench assembly stiffness value, ω is the expected stiffness value of the workbench assembly, if θ≥1, no adjustment is made; if θ<1, the compensation assembly is started;

[0097]

[0098] wherein, S is the moving distance, δ 工 is the displacement value, K is the compensation mapping relationship, δ 底 is the maximum deflection of the base assembly, ω is the expected stiffness value of the workbench assembly, L 工 is the length of the workbench assembly;

[0099]

[0100] wherein, K is the compensation mapping relationship, μ 工 is the workbench assembly stiffness value, μ 底 is the base assembly stiffness value.

[0101] This technical solution further provides a specific method for determining the displacement distance, which enables the adjustment of the compensation component to be quantified, the control of the compensation component to be more precise, and thus accurately supplements the stiffness.

[0102] like Figure 4 As shown, according to a third aspect of the embodiments of this application, a computer-readable storage medium 301 is provided, which stores a computer program 302 to implement the press stiffness adjustment method described in any of the above technical solutions.

[0103] The computer-readable storage medium 301 provided in this application embodiment implements the press stiffness adjustment method described in any of the above technical solutions. Therefore, the computer-readable storage medium 301 has all the beneficial effects of the press stiffness adjustment method described in the above technical solutions, which will not be elaborated here.

[0104] Compared with existing technologies, the advantages of this invention are that it can adjust the stiffness of a precision trial mold press, enabling it to simulate the working conditions of different presses. This makes the adjusted mold more adaptable to different user needs, significantly reducing the workload of mold repair and adjustment, improving production efficiency, reducing the labor intensity of workers, improving the forming quality of stamped parts, and greatly improving economic benefits. This device and adjustment method are rapid in response, can be controlled in a closed loop, and can achieve positive and negative adjustment of equipment stiffness.

[0105] In this invention, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "link" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0106] In the description of this invention, it should be understood that the terms "upper," "lower," "left," "right," "front," "rear," 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 unit 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.

[0107] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "certain embodiments", and the like is intended to indicate that the described implementation, feature, structure, material or characteristic is included in at least one embodiment or example of the application. The illustrative representations of the above terms in the specification are not necessarily referring to the same embodiment or example. Moreover, the described implementation, feature, structure, material or characteristic can be combined in any one or more embodiments or examples in a suitable manner.

[0108] The above only is the preferred embodiment of the present application, and is not intended to limit the present application. The present application can have various modifications and changes for those skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A heavy duty precision tryout press characterized by, Comprising: a workbench assembly, the workbench assembly comprising a table plate and a frame structure arranged below the table plate; a base assembly, the workbench assembly being detachably connected to the base assembly; a compensation assembly, the compensation assembly comprising a guide mechanism and an adjusting unit, the guide mechanism and the adjusting unit being arranged in the base assembly, the adjusting unit comprising an adjusting support screw as an output end of the adjusting unit, the adjusting unit being configured to adjust a distance between the adjusting support screw and the table plate so that the adjusting support screw is close to or away from the table plate, the adjusting support screw passing through the guide mechanism; a plurality of wireless measurement sensors, the plurality of wireless measurement sensors being arranged on the adjusting support screw and configured to detect a deformation amount of the table plate.

2. The heavy duty precision tryout press of claim 1 wherein, The adjusting unit further comprises: a driving member; a worm gear mechanism, an output end of the driving member being connected to the worm gear mechanism, an output end of the worm gear mechanism being connected to the adjusting support screw.

3. The heavy-duty precision tryout press according to claim 2, wherein the base assembly comprises a bottom plate, a top plate and a frame, the compensation assembly being arranged on the bottom plate, the frame being connected to the bottom plate, the top plate being arranged on a top of the frame, the workbench assembly being detachably connected to the top plate.

4. The heavy duty precision tryout press of claim 3 wherein, The adjusting unit further comprises: a bracket, the worm gear mechanism and the driving member being arranged on the bracket, the bracket being connected to the bottom plate.

5. The heavy precision tryout press machine according to any one of claims 1 to 4, characterized in that, Further comprising: a communication receiver, the communication receiver being connected to the plurality of wireless measurement sensors; an analysis module, the analysis module being connected to the communication receiver, the analysis module being configured to determine an operation parameter of the compensation assembly based on a detection result of the wireless measurement sensors and an expected rigidity value of the workbench assembly.

6. A method of press rigidity adjustment, characterized by, The press rigidity adjusting method is applied to the heavy-duty precision tryout press according to any one of claims 1 to 5, the press rigidity adjusting method comprising: step S201: arranging a die on the table plate, performing a tryout program to complete a stamping stroke, and obtaining displacement values measured by the plurality of wireless measurement sensors, and simultaneously obtaining a stamping force value; step S202: obtaining a workbench assembly rigidity value based on the displacement values, and obtaining a base assembly rigidity value based on the stamping force value; step S203: adjusting a distance between the adjusting support screw and the table plate based on the expected rigidity value of the workbench assembly, the workbench assembly rigidity value and the base assembly rigidity value, and compensating for rigidity of the workbench assembly.

7. The press rigidity adjusting method according to claim 6, wherein the step of obtaining the workbench assembly rigidity value based on the displacement values comprises calculating the workbench assembly rigidity value by the following formula: wherein, is the worktable assembly stiffness value, δ 工 is the displacement value, L 工 is the length of the worktable assembly.

8. The press rigidity adjusting method according to claim 7, wherein the step of obtaining the base assembly rigidity value based on the stamping force value comprises calculating the base assembly rigidity value by the following formula: wherein, μ 底 is the base assembly stiffness value, δ 底 is the base assembly maximum deflection, δ 1 is the base assembly maximum deflection due to bending normal stress, δ δ 2 is the base assembly maximum deflection due to bending shear stress, L is the bolt spacing; wherein, P is the punching force value, L is the bolt spacing, E is the elastic modulus, J is the base assembly cross-sectional moment of inertia; wherein, P is the punching force value, L is the bolt spacing, F is the base assembly cross-sectional area, G is the shear modulus, and a is the ratio of the maximum shear stress to the average shear stress.

9. The press rigidity adjustment method according to claim 8, characterized in that, Based on the expected rigidity value of the worktable assembly, the rigidity value of the worktable assembly and the rigidity value of the base assembly, the step of adjusting the distance between the adjusting support screw and the table plate to compensate the rigidity of the worktable assembly comprises: calculating the distance that the adjusting support screw needs to move by the following formula, and adjusting the distance between the adjusting support screw and the table plate to compensate the rigidity of the worktable assembly based on the moving distance: wherein θ is an adjustment parameter, is the worktable assembly stiffness value, ω is the expected stiffness value of the worktable assembly, if θ≥1, no adjustment is made; if θ<1, the compensation assembly is started. Wherein, S is the moving distance, δ 工 is the displacement value, K is the compensation mapping relationship, δ 底 is the maximum deflection of the base assembly, ω is the expected stiffness value of the workbench assembly, L 工 is the length of the workbench assembly; Wherein, K is compensation mapping relationship, μ 工 is the workbench assembly stiffness value, μ 底 is the base assembly stiffness value. 10.A computer readable storage medium, characterized in that, The computer readable storage medium stores a computer program, and the computer program implements the press rigidity adjustment method according to any one of claims 6 to 9.

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