Calibration equipment for sheet metal rolling assembly

Abstract

The utility model relates to the technical field of sheet metal processing, and particularly provides sheet metal rolling assembly calibration equipment. The calibration equipment comprises a fixing assembly, and the fixing assembly comprises a fixing plate. And the first calibration assembly is fixed to the fixing plate, the first calibration assembly comprises a displacement sensor, and the first calibration assembly is used for calibrating the extension length of the metal plate rolling assembly. The second calibration assembly is fixed on the fixed plate and is positioned on the opposite side of the first calibration assembly; the second calibration assembly comprises a force sensor and is used for calibrating the output pressure when the metal plate rolling assembly extends out. According to the utility model, the problems of inaccurate force position calibration and low efficiency of the hydraulic control trimming floating device are solved, the force position calibration can be accurately and efficiently carried out on the sheet metal rolling assembly, the error between the set value and the actual calibration is considered, and the calibration accuracy is improved. Meanwhile, a force position calibration assembly is integrated, the calibration efficiency is improved, and the mechanical intelligence principle is met.

Description

TECHNICAL FIELD

[0001] The application relates to the sheet metal processing technical field, in particular to a sheet metal rolling assembly calibration device. BACKGROUND

[0002] The rolling forming process is a commonly used sheet metal forming process, and plastic deformation of sheet metal is caused by rolling of a rolling assembly to obtain a required shape.

[0003] A liquid control rolling edge floating device in the prior art is used for sheet metal pressing by driving the rolling assembly to reciprocatingly stretch and retract. Since the thickness of sheet metal parts is different, the required rolling degree is also different. The stretching stroke of the rolling assembly and the degree of force applied to the sheet metal will directly affect the forming quality and output efficiency of the sheet metal product. Therefore, the precision control of the extension length and output degree of the rolling assembly is crucial to the product quality. The prior art lacks detection and control of the processing precision of the sheet metal rolling assembly, which affects the product consistency and yield. SUMMARY

[0004] The sheet metal rolling assembly calibration device provided by the embodiment of the application at least solves the problem that there is a lack of calibration device detection of the extension length and force application size of the sheet metal rolling assembly.

[0005] The sheet metal rolling assembly calibration device provided by the embodiment of the application comprises:

[0006] A fixing assembly, wherein the fixing assembly comprises a fixing plate;

[0007] A first calibration assembly, wherein the first calibration assembly is fixed to the fixing plate, the first calibration assembly comprises a displacement sensor, and the first calibration assembly is used for calibrating the extension length of the sheet metal rolling assembly;

[0008] A second calibration assembly, wherein the second calibration assembly is fixed to the fixing plate and located at the opposite side of the first calibration assembly, the second calibration assembly comprises a force sensor, and the second calibration assembly is used for calibrating the output pressure of the sheet metal rolling assembly when the sheet metal rolling assembly is extended.

[0009] The first calibration assembly of the sheet metal rolling assembly calibration device further comprises a first fixing frame, a pressing plate and a pressing jaw.

[0010] The main body part of the displacement sensor is located between the top plate and the bottom plate of the first fixing frame.

[0011] The sensing end of the displacement sensor is connected to the main body part, and the sensing end penetrates through the top plate and extends upward.

[0012] The pressing plate is used for fixing the sensing end, and the pressing plate is detachably connected to the top plate.

[0013] The pressing jaw is used for fixing the main body part, and surrounds the outer periphery of the main body part and is detachably connected with the first fixing frame.

[0014] The top plate and the bottom plate of the first fixing frame are oppositely arranged in the vertical direction and both extend in the horizontal direction.

[0015] The first calibration assembly further comprises a level meter fixed to the top plate.

[0016] The second calibration assembly further comprises a second fixing frame and a change-over switch.

[0017] The force sensor is provided with at least two groups, and the two groups of force sensors are both fixed to the second fixing frame; the two groups of force sensors are configured to detect the force directions perpendicular to each other when the output pressure is detected.

[0018] The change-over switch is located between the second fixing frame and the fixing plate, and the change-over switch is connected with the force sensor.

[0019] The force sensor is provided as a pressure sensor, the pressure sensor comprises a sensor and an elastic element; the sensor is fixed to the second fixing frame, and the elastic element is connected with the sensor in the force direction.

[0020] The calibration equipment for the sheet metal rolling assembly further comprises a control assembly, the control assembly is arranged between the first calibration assembly and the second calibration assembly, and is connected with the first calibration assembly and the second calibration assembly respectively.

[0021] The control assembly comprises a display screen, a network switch, a switching power supply, a gateway and a circuit breaker.

[0022] The calibration equipment for the sheet metal rolling assembly further comprises a shell body, the shell body is arranged outside the control assembly and is connected with the fixing plate; and the shell body is further provided with an observation window for exposing the display screen.

[0023] The calibration equipment for the sheet metal rolling assembly further comprises a first cover, a second cover, a movable cover and a movable sealing plate.

[0024] The first cover, the second cover, the movable cover and the movable sealing plate are connected with the shell body and the fixed plate to form a closed space; the sensing end of the first calibration assembly and the elastic element of the second calibration assembly are located outside the closed space.

[0025] The movable cover is detachably connected with the first cover, and the movable sealing plate is detachably connected with the second cover.

[0026] The fixed assembly further comprises a support, and the support is supported on the bottom of the fixed plate; the support comprises a base, a column and a mounting panel connected in sequence.

[0027] The metal plate rolling assembly calibration device provided by the embodiment of the application solves the problems of inaccurate and low-efficiency force-position calibration of the liquid-controlled rolling edge floating device, can accurately and efficiently calibrate the metal plate rolling assembly, considers the error between the set value and the actual calibration, improves the calibration accuracy, integrates the force-position calibration assembly, improves the calibration efficiency, and meets the mechanical intelligent principle. BRIEF DESCRIPTION OF DRAWINGS

[0028] The accompanying drawings, which are included to provide a further understanding of the application and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application.

[0029] Figure 1 is a partial structure diagram of the liquid-controlled rolling edge floating device in the embodiment of the application.

[0030] Figure 2 is Figure 1 is an enlarged diagram of A in FIG.

[0031] Figure 3 is a structure diagram of the metal plate rolling assembly calibration device in the embodiment of the application.

[0032] Figure 4 is Figure 3 is a structure diagram of the metal plate rolling assembly calibration device from another angle.

[0033] Figure 5 is a structure diagram of the fixed assembly of the metal plate rolling assembly calibration device in the embodiment of the application.

[0034] Figure 6 is a structure diagram of other parts of the metal plate rolling assembly calibration device in the embodiment of the application, except the fixed assembly.

[0035] Figure 7is a structural schematic view of the shell of the sheet metal roll forming assembly calibration device in the embodiment of the present invention.

[0036] Figure 8 is Figure 7 is an exploded view of the shell.

[0037] Figure 9 is a structural schematic view of the inside of the shell of the sheet metal roll forming assembly calibration device in the embodiment of the present invention.

[0038] Figure 10 is Figure 9 is a structural schematic view of another angle of the inside of the shell.

[0039] Figure 11 is a structural schematic view of the first calibration assembly of the sheet metal roll forming assembly calibration device in the embodiment of the present invention.

[0040] Figure 12 is a structural schematic view of the force sensor of the sheet metal roll forming assembly calibration device in the embodiment of the present invention.

[0041] Figure 13 is a schematic view of the use of the first calibration assembly in the embodiment of the present invention.

[0042] Figure 14 is Figure 13 is an enlarged schematic view of the abutting place of the jacks and the displacement sensor.

[0043] Figure 15 is a schematic view of the use of the second calibration assembly in the embodiment of the present invention.

[0044] Figure 16 is Figure 15 is an enlarged schematic view of the abutting place of the jacks and the force sensor.

[0045] Figure 17 is another schematic view of the use of the second calibration assembly in the embodiment of the present invention.

[0046] Figure 18 is Figure 17 is an enlarged schematic view of B.

[0047] Among the above drawings, the following reference signs are included:

[0048] 1 - fixed assembly; 11 - base; 12 - stand; 13 - mounting panel; 14 - fixed plate; 2 - first calibration assembly; 21 - displacement sensor; 2101 - main body; 2102 - sensing end; 2103 - protective sleeve; 22 - first fixing frame; 2201 - top plate; 2202 - bottom plate; 2203 - connecting plate; 23 - pressing plate; 24 - pressing jaw; 25 - level meter; 3 - second calibration assembly; 31 - force sensor; 3101 - elastic element; 3102 - inductor; 32 - second fixing frame; 33 - changeover switch; 41 - display screen; 42 - network switch; 43 - switching power supply; 44 - gateway; 45 - circuit breaker; 46 - socket; 47 - network cable adapter; 5 - housing; 51 - first cover; 52 - second cover; 53 - movable shield; 54 - movable cover plate; 55 - housing main body; 5501 - observation window; 56 - handle; 57 - signal cable; 6 - mechanical arm; 71 - base; 72 - top column. DETAILED DESCRIPTION

[0049] It should be noted that the embodiments and features of the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0050] It should be noted that the terms used herein are only intended to describe 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, unless the context clearly indicates otherwise, and it should also be understood that, when the terms "comprise" and / or "include" are used in the specification, there is a presence of the features, steps, operations, devices, components and / or combinations thereof.

[0051] Unless specifically stated otherwise, the relative arrangements of the components and steps illustrated in these embodiments and the numerical expressions and values set forth in these embodiments do not limit the scope of the present application. It should be understood that the various parts shown in the drawings are not necessarily drawn to scale in proportion. The techniques, methods and devices known to those skilled in the relevant art can not be discussed in detail, but should be considered as part of the authorized specification, if appropriate. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary, and not as a limitation. Therefore, other examples of the exemplary embodiments can have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0052] A liquid control edge rolling floating device is commonly used in the edge rolling process of metal plate to form the edge of the plate. The liquid control edge rolling floating device includes a control system and a rolling assembly. One end of the rolling assembly is fixed on the base 71 of the floating device and embedded in the inside of the base 71. The inside of the base 71 is also provided with an electro-hydraulic drive device which is controlled by the control system and provides power for the reciprocating movement of the rolling assembly. The electro-hydraulic drive device combines electrical control and hydraulic drive, which can generate a large driving force and accurately control the speed, position and force parameters, meeting the operation requirements of the liquid control edge rolling floating device.

[0053] In actual use, the extension stroke and force of the rolling assembly have the most important influence on the forming of the plate. When different rolling assemblies are calibrated, the extension stroke and force need to be detected at different stations, which affects the test efficiency. At the same time, the accuracy of the existing calibration equipment does not meet the detection requirements of the rolling assembly. When the product consistency of the rolling assembly is insufficient, it is easy to affect the forming quality and output efficiency of the sheet metal product.

[0054] Accordingly, with reference to Figures 3-12 , the utility model embodiment provides a sheet metal rolling assembly calibration device for the force position automatic calibration of the rolling assembly of the liquid control edge rolling floating device, specifically, the calibration of the displacement of the one-way stroke of the rolling assembly when extending and retracting, and the calibration of the force of the rolling assembly when extending to the metal plate. The utility model integrates two calibration assemblies in the same calibration device, improves the calibration efficiency and optimizes the space occupancy rate of the equipment. By improving the calibration accuracy to improve the product consistency, the quality of the metal plate edge rolling forming is better.

[0055] With reference to Figure 3 and Figure 4 , the calibration device provided by the embodiment includes a fixing assembly 1, a first calibration assembly 2, a second calibration assembly 3 and a control assembly. The fixing assembly 1 is used to fix and support the first calibration assembly 2 and the second calibration assembly 3; the first calibration assembly 2 is used to calibrate the displacement of the rolling assembly, and the second calibration assembly 3 is used to calibrate the force of the rolling assembly to the metal plate. The control assembly is used to collect the calibration results of the first calibration assembly 2 and the second calibration assembly 3.

[0056] Specifically, the fixing assembly 1 includes a support and a fixed plate 14. With reference to Figure 5 , the support includes a base 11, a column 12 and a mounting panel 13 connected in sequence. The base 11 is placed on the workbench, the mounting panel 13 is arranged in parallel opposite to the base 11, one end of the column 12 is connected to the base 11, and the other end is connected to the mounting panel 13. The connection between the two ends of the column 12 and the base 11 and the mounting panel 13 is also provided with a triangular plate for reinforcement.

[0057] Further, the fixing plate 14 is fixedly installed on the installation panel 13, and the bracket is supported at the bottom of the fixing plate 14. The fixing plate 14 is used to bear and fix two calibration assemblies. The fixing assembly 1 is arranged to provide installation and fixing positions for the first calibration assembly 2 and the second calibration assembly 3, and the height of the first calibration assembly 2 and the second calibration assembly 3 is set at a height facilitating cooperation with the rolling assembly test through the bracket design.

[0058] Specifically, referring to Figure 11 The first calibration assembly 2 is used to calibrate the extension length of the sheet metal rolling assembly. The first calibration assembly 2 is fixed on the fixing assembly 1, and specifically fixed on the fixing plate 14. The first calibration assembly 2 includes a displacement sensor 21, a first fixing frame 22, a pressing plate 23, and a pressing jaw 24.

[0059] The displacement sensor 21 is used to measure the displacement amount when the rolling assembly extends. The displacement sensor 21 includes a main body part 2101 and a sensing end 2102. The first fixing frame 22 is used to fix the displacement sensor 21, and the first fixing frame 22 includes a top plate 2201 and a bottom plate 2202 arranged opposite in the vertical direction, and a connecting plate 2203 used to connect the top plate 2201 and the bottom plate 2202; the connecting plate 2203 extends in the vertical direction, and the top plate 2201 and the bottom plate 2202 extend in the horizontal direction.

[0060] In succession, the main body part 2101 of the displacement sensor 21 is located between the top plate 2201 and the bottom plate 2202, and is fixed by the pressing jaw 24. The pressing jaw 24 surrounds the outer periphery of the main body part 2101 and fixes the main body part 2101 on the connecting plate 2203. The pressing jaw 24 is arranged to be detachably connected with the connecting plate 2203, and the two ends of the pressing jaw 24 are connected with the connecting plate 2203 through pressing jaw fastening screws.

[0061] In succession, the sensing end 2102 of the displacement sensor 21 is connected with the main body part 2101 and extends upward in the vertical direction and penetrates outside the top plate 2201. The sensing end 2102 is fixed by the pressing plate 23, and the pressing plate 23 is detachably connected with the top plate 2201 and forms a through hole for penetrating the sensing end 2102. In this embodiment, the pressing plate 23 is fixed with the side of the top plate 2201 through pressing plate fastening screws.

[0062] Further, referring to Figure 11As shown, the first calibration assembly 2 further comprises a level 25 arranged on the top plate 2201 of the first fixing frame 22. In high-precision displacement measurement and calibration, an absolutely horizontal reference surface is needed to ensure the accuracy of calibration. The level 25 can calibrate the initial horizontal state of the fixed assembly 1, especially the fixed plate 14, and further calibrate the horizontal state of the top plate 2201 of the first fixing frame 22. Only when the displacement sensor 21 is kept horizontal, the measurement of the displacement amount is more accurate, avoiding calibration errors caused by the inclination of the table top.

[0063] Specifically, referring to Figure 4 As shown, the second calibration assembly 3 is used to calibrate the force applied by the sheet metal rolling assembly to the metal plate, and specifically tests the accuracy of the pressure output value. The second calibration assembly 3 is fixed to the fixed assembly 1, specifically fixed to the fixed plate 14, and located on the opposite side of the first calibration assembly 2. The second calibration assembly 3 comprises a force sensor 31, a second fixing frame 32 and a switch 33.

[0064] In the preferred embodiment of the utility model, referring to Figure 12 As shown, the force sensor 31 is arranged as a pressure sensor. The pressure sensor comprises a sensor 3102 and an elastic element 3101. The sensor 3102 is fixed to the second fixing frame 32, and the elastic element 3101 is connected to the sensor 3102 in the force direction.

[0065] Preferably, the force sensor 31 is provided with at least two groups, and the two groups of force sensors 31 are both fixed to the second fixing frame 32. The force directions of the two groups of force sensors 31 configured to detect the output pressure are perpendicular to each other, that is, the relative arrangement directions of the sensor 3102 and the elastic element 3101 of the two groups of force sensors are perpendicular to each other.

[0066] The two mutually perpendicular surfaces of the second fixing frame 32 are respectively used to fix one force sensor 31. The second fixing frame 32 and the fixed plate 14 form a space for accommodating the switch 33. The switch 33 is located between the second fixing frame 32 and the fixed plate 14, and the switch 33 connects the two force sensors 31. By adjusting the switch 33, different pressure sensor channels can be switched, and then the pressure measurement values of each position are displayed in the control assembly in turn.

[0067] The arrangement of the two groups of force sensors 31 and the configuration of the switch 33 can save the cost of the calibration equipment, avoid the need for each pressure source to be equipped with a separate measurement assembly, reduce the occupied space of the equipment, and facilitate maintenance.

[0068] Specifically, referring toFigure 9 and Figure 10 As shown in

[0069] Further, the side where the first calibration assembly 2 is located is also provided with a socket 46 for connecting the switching power supply 43 for power supply; the side where the second calibration assembly 3 is located is also provided with a network cable adapter 47 for connecting a network cable, which is connected with the network switch 42, the gateway 44 and the circuit breaker 45.

[0070] Specifically, referring to Figures 6-8 As shown in

[0071] Further, referring to Figure 7 and Figure 8 As shown in

[0072] The working principle of the sheet metal roll forming assembly calibration device provided by the utility model is as follows:

[0073] The hydraulic control roll edge floating device is fixed by the mechanical arm 6, and referring to Figure 1 and Figure 2As shown, the end face of the rolling assembly of the hydraulic control rolling float device is provided with a jacking post 72, which is calibrated by the extension length and output pressure value of the jacking post 72 in the embodiment. The calibration equipment of the calibration assembly with a suitable range is selected according to the extension length range and output pressure value range.

[0074] Referring to Figure 13 and Figure 14 As shown, the calibration of the rolling assembly displacement data includes:

[0075] Start the mechanical arm 6, and set the extension length of the rolling assembly of the hydraulic control rolling float device to 20 mm.

[0076] Remove the protective sleeve 2103 of the sensing end 2102 of the displacement sensor 21, and set the jacking post 72 of the standard rolling assembly and the sensing end 2102 of the displacement sensor 21 in vertical direction, so that the end of the jacking post 72 abuts against the end face of the free end of the sensing end 2102, and zero the data of the displacement sensor 21.

[0077] Start the hydraulic control rolling float device, and make the jacking post 72 of the rolling assembly extend according to the preset length.

[0078] During the extension of the jacking post 72, the displacement amount of the sensing end 2102 of the displacement sensor 21 is the same as the displacement amount of the jacking post 72, so that the displacement amount data of the displacement sensor 21 collected and displayed by the control assembly is the actual extension length of the jacking post 72.

[0079] According to the difference between the displacement amount data measured by the displacement sensor 21 on the display screen 41 and the preset length 20 mm, the first calibration error of the displacement sensor 21 is obtained. Then, the calibration of the rolling assembly to be measured is carried out according to the calibration result of the standard rolling assembly as the "0 reference".

[0080] During the calibration of the rolling assembly to be measured, the pose of the rolling assembly and the calibration process are consistent with those of the standard rolling assembly. The display value of the displacement sensor 21 in the calibration process of the rolling assembly to be measured is obtained as the actual displacement amount data of the rolling assembly to be measured. When the actual displacement amount data of the rolling assembly to be measured is compared and analyzed with the preset length, the first calibration error needs to be considered, and after excluding the first calibration error, whether the rolling assembly to be measured is qualified is judged according to the comparison and analysis result. The consistency of the extension length of the rolling assembly facilitates to obtain the sheet metal product with higher rolling precision.

[0081] Referring to Figures 15-18 As shown, the calibration of the rolling assembly output pressure value includes:

[0082] Start the mechanical arm 6, and set the pressure value output by the rolling assembly of the hydraulic control rolling float device, that is, the pressure value applied to the force sensor 31 to 200 N.

[0083] According to the position of the standard rolling assembly and the cooperation with the mechanical arm 6, at least one force sensor 31 is selected for calibration, and the specific selected force sensor 31 can be determined according to actual needs, and is switched by the conversion switch 33. The top post 72 of the standard rolling assembly is arranged opposite to the elastic element 3101 of the force sensor 31 along the direction of the applied pressure, that is, the force direction of the force sensor 31. The end of the top post 72 abuts against the end surface of the elastic element 3101, and the data of the force sensor 31 is zeroed.

[0084] The hydraulic control rolling edge floating device is started, and the top post 72 of the rolling assembly applies a preset pushing force of 200N.

[0085] During the extension of the top post 72, the force of the elastic element 3101 of the force sensor 31 is the same as the force applied by the top post 72. Therefore, the pressure value of the force sensor 31 collected and displayed by the control assembly is the output pressure value of the top post 72, that is, the actual applied force.

[0086] The second calibration error of the force sensor 31 is obtained according to the difference between the pressure value sensed by the force sensor 31 on the display screen 41 and the preset pushing force. Then, the calibration of the to-be-tested rolling assembly is carried out according to the calibration result of the standard rolling assembly as the "0 reference".

[0087] During the calibration of the to-be-tested rolling assembly, the pose of the rolling assembly and the calibration process are consistent with those of the standard rolling assembly. The display value of the force sensor 31 in the calibration process of the to-be-tested rolling assembly is obtained as the actual applied force of the to-be-tested rolling assembly. When comparing and analyzing the actual applied force of the to-be-tested rolling assembly with the preset pushing force, the second calibration error needs to be considered, and after excluding the above-mentioned second calibration error, whether the to-be-tested rolling assembly is qualified is judged according to the comparison and analysis result. The consistency of the applied force of the rolling assembly is controlled, so as to obtain a sheet metal product with higher rolling edge processing precision.

[0088] For purposes of the description hereinafter, the terms "upper", "lower", "right", "left", "rear", "front", "vertical" and "horizontal" as can be perceived herein relative to the accompanying drawings refer to the orientation of the components being described. However, it is to be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device described herein relative to the other device or structure is inverted, then a spatially relative term such as "above" can be interpreted as meaning "below" or "below" can be interpreted as meaning "above". The device can also be oriented in other ways (rotated at 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0089] In addition, it should be pointed out that the use of "first", "second" and the like words to qualify parts, is only for the convenience of distinguishing the corresponding parts, and the above words have no special meaning unless otherwise stated, and therefore cannot be understood as limiting the scope of protection of the present application.

[0090] The preferred embodiments of the present application have been described above with the purpose of enabling not to limit the scope of protection of the present application, but of enabling a person skilled in the art to make various modifications and changes to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A sheet metal roll forming assembly calibration apparatus, comprising: include: The fixing component includes a fixing plate; A first calibration component, fixed to the fixed plate, includes a displacement sensor and is used to calibrate the extension length of the sheet metal rolling assembly. The second calibration component is fixed to the fixed plate and located on the opposite side of the first calibration component; the second calibration component includes a force sensor and is used to calibrate the output pressure when the sheet metal rolling assembly extends.

2. The sheet metal roll forming assembly calibration apparatus of claim 1, wherein, The first calibration assembly also includes a first fixing frame, a pressure plate, and pressure claws; The main body of the displacement sensor is located between the top plate and the bottom plate of the first fixing frame; The sensing end of the displacement sensor is connected to the main body, and the sensing end passes through the top plate and extends upward. The pressure plate is used to fix the sensing end, and the pressure plate is detachably connected to the top plate; The pressure claw is used to fix the main body, and the pressure claw surrounds the outer periphery of the main body and is detachably connected to the first fixing frame.

3. The sheet metal roll forming assembly calibration apparatus of claim 2, wherein, The top plate and the bottom plate of the first fixing frame are vertically opposite each other and both extend horizontally. The first calibration component also includes a level, which is fixed to the top plate.

4. The sheet metal roll forming assembly calibration apparatus of claim 1, wherein, The second calibration assembly also includes a second mounting bracket and a selector switch; The force sensor is provided in at least two sets, and both sets of the force sensor are fixed to the second fixing frame; the two sets of force sensors are configured such that the force directions when detecting the output pressure are perpendicular to each other; The selector switch is located between the second fixing frame and the fixing plate, and the selector switch is connected to the force sensor.

5. The sheet metal roll forming assembly calibration apparatus of claim 4, wherein, The force sensor is configured as a pressure sensor, which includes a sensor and an elastic element; the sensor is fixed to the second fixing frame, and the elastic element is connected to the sensor along the direction of the force.

6. The sheet metal roll forming assembly calibration apparatus of claim 1, wherein, It also includes a control component, which is disposed between the first calibration component and the second calibration component and is connected to the first calibration component and the second calibration component respectively; The control components include a display screen, a network switch, a switching power supply, a gateway, and a circuit breaker.

7. The sheet metal roll forming assembly calibration apparatus of claim 6, wherein, It also includes a housing body, which is disposed outside the control component and connected to the fixing plate; the housing body is also provided with an observation window for exposing the display screen.

8. The sheet metal roll forming assembly calibration apparatus of claim 7, wherein, It also includes a first cover, a second cover, a movable protective cover, and a movable sealing plate; The first cover, the second cover, the movable protective cover, and the movable sealing plate are connected to the shell body and the fixed plate to form a closed space; The sensing end of the first calibration component and the elastic element of the second calibration component are located outside the enclosed space.

9. The sheet metal roll forming assembly calibration apparatus of claim 8, wherein, The movable protective cover is detachably connected to the first cover, and the movable sealing plate is detachably connected to the second cover.

10. The sheet metal roll forming assembly calibration apparatus of claim 1, wherein, The fixing component also includes a bracket, which is supported on the bottom of the fixing plate; the bracket includes a base, a column and a mounting panel connected in sequence.

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