Sheet metal bending test device
By designing an adjustable slider and screw-connected press roller structure in the metal sheet bending test device, the problem of frequent adjustment of press roller spacing is solved and the testing efficiency is improved.
Patent Information
- Application Number
- CN202422182297.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-05
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-05
AI Technical Summary
The existing metal sheet bending test devices require frequent adjustment of the spacing between the bent press rollers and fixing them, resulting in repeated disassembly and assembly of press rollers in each test, affecting the testing efficiency.
A metal sheet bending test device is designed, wherein the first pressing roller and the second pressing roller are respectively rotatably connected to the slider, and the position of the slider is adjusted by a screw to adjust the spacing between the pressing rollers, and the slider is fixed after the adjustment is completed to avoid repeated disassembly and assemble the pressing rollers.
It realizes that when testing materials for different plate sizes, the pressure roller spacing is automatically adjusted and fixed, which improves the testing efficiency and avoids the disassembly and assembly operation of each test.
Smart Images
Figure CN223051074U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the technical field of metal sheet bending tests. More specifically, it relates to a metal sheet bending test device. Background Art
[0002] Based on the relevant standard requirements, when conducting a metal sheet bending test, the test plate body needs to be set on two bending rollers, and the distance between the two bending rollers should be adjusted adaptively according to the material and thickness of the test plate body. Then, the bending punch is used to punch the test plate body located between the two bending rollers in the vertical direction.
[0003] However, since it is necessary to frequently adjust the distance between the two bending rollers according to the different sizes and materials of the test plate body, and firmly fix the two bending rollers on the test instrument after the distance adjustment is completed, it is necessary to repeatedly disassemble and assemble the two bending rollers for each test, thus affecting the test efficiency. Summary of the Utility Model
[0004] The purpose of this application is to provide a metal sheet bending test device, aiming to solve the problem that currently, it is necessary to frequently adjust the distance between the two bending rollers according to the different sizes and materials of the test plate body, and firmly fix the two bending rollers on the test instrument after the distance adjustment is completed, so that it is necessary to repeatedly disassemble and assemble the two bending rollers for each test, thus affecting the test efficiency.
[0005] To achieve the above purpose, the technical solution adopted in this application is to provide a metal sheet bending test device, including a fixed support, a first roller assembly, and a second roller assembly. The first roller assembly includes a first roller, a first slider, and a first screw. The second roller assembly includes a second roller, a second slider, and a second screw. The first roller and the second roller are respectively rotatably connected to the first slider and the second slider. The first slider and the second slider are relatively movably connected to the fixed support, and the first roller and the second roller are arranged adjacent to each other face to face. The first screw is movably inserted through the fixed support and threadedly connected to the first slider, and is used to adjust the position of the first slider so that the first roller moves towards or away from the second roller. The second screw is movably inserted through the fixed support and threadedly connected to the second slider, and is used to adjust the position of the second slider so that the second roller moves towards or away from the first roller.
[0006] In one embodiment, the fixed support includes a fixed bottom plate, a first enclosure, a second enclosure, a third enclosure, and a fourth enclosure. The first enclosure and the third enclosure are respectively arranged on opposite sides of the fixed bottom plate, and the second enclosure and the fourth enclosure are respectively arranged on opposite sides of the fixed bottom plate. The fixed bottom plate, the first enclosure, the second enclosure, the third enclosure, and the fourth enclosure cooperate to enclose a linearly extending guiding chute. The arrangement directions of the first enclosure and the third enclosure are parallel to the extending direction of the guiding chute, and the arrangement directions of the second enclosure and the fourth enclosure are perpendicular to the extending direction of the guiding chute. The first screw rod movably penetrates through the first enclosure and is threadedly connected to the first slider along the direction parallel to the extending direction of the guiding chute, and the second screw rod movably penetrates through the third enclosure and is threadedly connected to the second slider along the direction parallel to the extending direction of the guiding chute.
[0007] In one embodiment, the first roller assembly further includes a first bearing. The outer ring of the first bearing is fixedly connected to the first enclosure, and the inner ring of the first bearing is fixedly connected to the first screw rod. The second roller assembly further includes a second bearing. The outer ring of the second bearing is fixedly connected to the third enclosure, and the inner ring of the second bearing is fixedly connected to the second screw rod.
[0008] In one embodiment, the first roller assembly further includes a first guide shaft. One end of the first guide shaft is fixedly connected to the first enclosure, and the other end movably penetrates through the first slider along the direction parallel to the extending direction of the guiding chute. The second roller assembly further includes a second guide shaft. One end of the second guide shaft is fixedly connected to the third enclosure, and the other end movably penetrates through the second slider along the direction parallel to the extending direction of the guiding chute.
[0009] In one embodiment, the first roller assembly includes two first guide shafts, and the two first guide shafts are respectively located on both sides of the first screw rod along the direction perpendicular to the extending direction of the guiding chute. The second roller assembly includes two second guide shafts, and the two second guide shafts are respectively located on both sides of the second screw rod along the direction perpendicular to the extending direction of the guiding chute.
[0010] In one embodiment, a first groove is provided on the bottom surface of the first slider along the direction parallel to the extending direction of the guiding chute, and a second groove is provided on the bottom surface of the second slider along the direction parallel to the extending direction of the guiding chute.
[0011] In one embodiment, the metal sheet bending test device further includes a first bracket, a second bracket, a first micrometer, and a second micrometer. The first bracket and the second bracket are respectively arranged on opposite sides of the fixed bottom plate, and the arrangement directions of the first bracket and the second bracket are parallel to the extending direction of the guiding chute, and the first bracket and the second bracket are respectively erected above the first enclosure and the third enclosure. The first micrometer is detachably arranged on the first bracket for measuring the displacement value of the first slider, and the second micrometer is detachably arranged on the second bracket for measuring the displacement value of the second slider.
[0012] In one embodiment, the metal sheet bending test device further includes a pressing head assembly. The first bracket is provided with a first guide post, and the second bracket is provided with a second guide post. The pressing head assembly is movably inserted through the first guide post and the second guide post in the vertical direction respectively, and is suspended above the first pressing roller and the second pressing roller.
[0013] In one embodiment, the pressing head assembly includes a movable support, a pressing head main body, and a connecting main body. The opposite ends of the movable support along the direction extending parallel to the guiding chute are movably inserted through the first guide post and the second guide post in the vertical direction respectively. The pressing head main body is disposed in the central area of the side of the movable support facing the first pressing roller and the second pressing roller, and the connecting main body is disposed in the central area of the side of the movable support facing away from the first pressing roller and the second pressing roller.
[0014] In one embodiment, the pressing head main body includes a pressing head support and a stamping pressing head. The pressing head support is disposed in the central area of the side of the movable support facing the first pressing roller and the second pressing roller. The pressing head support is provided with a pressing head card slot, and the pressing head card slot penetrates through the opposite sides of the pressing head support along the direction perpendicular to the extension direction of the guiding chute. The stamping pressing head is inserted and fixed on the pressing head card slot along the direction perpendicular to the extension direction of the guiding chute.
[0015] The beneficial effect of the metal sheet bending test device provided by the present application is that, compared with the prior art, in the above metal sheet bending test device, the first pressing roller and the second pressing roller are respectively rotatably connected to the first slider and the second slider. The first screw rod is movably inserted through the fixed support and is threadedly connected to the first slider, and the second screw rod is movably inserted through the fixed support and is threadedly connected to the second slider. In this way, when performing a sheet bending test on test plates of different sizes and materials, the relative positions of the first slider and the second slider can be adjusted horizontally through the first screw rod and the second screw rod respectively, that is, the horizontal distance between the first pressing roller and the second pressing roller can be adjusted. And after the horizontal distance between the first pressing roller and the second pressing roller is adjusted, the first screw rod and the second screw rod can also provide a fixing effect on the first slider and the second slider immediately, thereby avoiding the problem of repeatedly disassembling and assembling the two bending pressing rollers in each test, and effectively improving the efficiency of the sheet bending test. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0017] Figure 1 is a schematic structural diagram of a metal sheet bending test device provided by an embodiment of the present application;
[0018] Figure 2For Figure 1 Schematic structural diagram of another perspective of the metal sheet bending test device shown;
[0019] Figure 3 For Figure 1 Schematic structural diagram of another perspective of the metal sheet bending test device shown;
[0020] Figure 4 For Figure 1 Schematic structural diagram of the indenter assembly in the metal sheet bending test device shown.
[0021] In the figure:
[0022] 10. Metal sheet bending test device; 100. Fixed support; 101. Guide chute; 110. Fixed bottom plate; 120. First enclosure; 130. Second enclosure; 140. Third enclosure; 150. Fourth enclosure; 200. First pressure roller assembly; 210. First pressure roller; 220. First slider; 230. First screw; 240. First guide shaft; 250. First bearing; 300. Second pressure roller assembly; 310. Second pressure roller; 320. Second slider; 330. Second screw; 340. Second guide shaft; 350. Second bearing; 400. First bracket; 410. First guide post; 500. Second bracket; 510. Second guide post; 600. First micrometer; 700. Second micrometer; 800. Indenter assembly; 810. Movable support; 820. Indenter body; 821. Indenter support; 822. Indenter card slot; 823. Stamping indenter; 830. Connection body; 20. Test plate body. Detailed implementation manners
[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer and more understandable, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0024] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0025] It should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.
[0026] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "a plurality" is two or more unless otherwise specifically defined.
[0027] Please refer to Figure 1 , Figure 2 and Figure 3 together. Now, a metal sheet bending test device 10 provided in an embodiment of the present application will be described. The above metal sheet bending test device 10 includes a fixed support 100, a first roller assembly 200, and a second roller assembly 300. Among them, the first roller assembly 200 includes a first roller 210, a first slider 220, and a first screw 230. The second roller assembly 300 includes a second roller 310, a second slider 320, and a second screw 330. The first roller 210 and the second roller 310 are respectively rotatably connected to the first slider 220 and the second slider 320. The first slider 220 and the second slider 320 are relatively movably arranged on the fixed support 100 along a horizontal linear direction, and the first roller 210 and the second roller 310 are arranged adjacent to each other face to face. The first screw 230 movably passes through the fixed support 100 and is threadedly connected to the first slider 220. The first screw 230 is used to adjust the position of the first slider 220 and then drive the first roller 210 to move in a direction towards or away from the second roller 310. The second screw 330 movably passes through the fixed support 100 and is threadedly connected to the second slider 320. The second screw 330 is used to adjust the position of the second slider 320 and then drive the second roller 310 to move in a direction towards or away from the first roller 210.
[0028] The beneficial effects of the metal sheet bending test device 10 provided by this application are as follows. Compared with the prior art, in the above metal sheet bending test device 10, the first pressing roller 210 and the second pressing roller 310 are respectively rotatably connected to the first slider 220 and the second slider 320. The first screw rod 230 is movably passed through the fixed support 100 and threadedly connected to the first slider 220, and the second screw rod 330 is movably passed through the fixed support 100 and threadedly connected to the second slider 320. In this way, when performing a sheet bending test on test plates 20 with different sizes and materials, the relative positions of the first slider 220 and the second slider 320 can be adjusted horizontally through the first screw rod 230 and the second screw rod 330, that is, the horizontal distance between the first pressing roller 210 and the second pressing roller 310 can be adjusted. And after the horizontal distance between the first pressing roller 210 and the second pressing roller 310 is adjusted, the first screw rod 230 and the second screw rod 330 can immediately provide a fixing effect on the first slider 220 and the second slider 320, thereby avoiding the problem of repeatedly disassembling and assembling the two bending pressing rollers in each test, and effectively improving the efficiency of the sheet bending test.
[0029] Please refer to Figure 1 and Figure 2 In this embodiment, the above fixed support 100 includes a fixed bottom plate 110, a first enclosure 120, a second enclosure 130, a third enclosure 140, and a fourth enclosure 150. Among them, the first enclosure 120 and the third enclosure 140 are respectively arranged on opposite sides of the fixed bottom plate 110, and the second enclosure 130 and the fourth enclosure 150 are respectively arranged on opposite sides of the fixed bottom plate 110. The fixed bottom plate 110, the first enclosure 120, the second enclosure 130, the third enclosure 140, and the fourth enclosure 150 cooperate to enclose a guiding chute 101 extending linearly in the horizontal direction. And the arrangement directions of the first enclosure 120 and the third enclosure 140 are parallel to the extending direction of the guiding chute 101 in the horizontal direction, and the arrangement directions of the second enclosure 130 and the fourth enclosure 150 are perpendicular to the extending direction of the guiding chute 101 in the horizontal direction. Correspondingly, the first screw rod 230 is movably passed through the first enclosure 120 and threadedly connected to the first slider 220 along the direction parallel to the extending direction of the guiding chute 101, and the second screw rod 330 is movably passed through the third enclosure 140 and threadedly connected to the second slider 320 along the direction parallel to the extending direction of the guiding chute 101.
[0030] Please refer to Figure 2 and Figure 3, in this embodiment, the first roller assembly 200 further includes a first bearing 250. The first enclosure 120 is fixedly connected to the outer ring of the first bearing 250, and the first screw 230 is fixedly connected to the inner ring of the first bearing 250. In this way, during the process of rotating the first screw 230, the first screw 230 can be prevented from translating, which is convenient for observing only the moving position of the first slider 220; the second roller assembly 300 further includes a second bearing 350. The third enclosure 140 is fixedly connected to the outer ring of the second bearing 350, and the second screw 330 is fixedly connected to the inner ring of the second bearing 350. In this way, during the process of rotating the second screw 330, the second screw 330 can be prevented from translating, which is convenient for observing only the moving position of the second slider 320.
[0031] Further, in this embodiment, the first roller assembly 200 further includes a first guide shaft 240. One end of the first guide shaft 240 is fixedly connected to the first enclosure 120, and the other end movably penetrates through the first slider 220 along the extension direction parallel to the guide chute 101. In this way, when the first slider 220 is driven to move by the first screw 230, the first guide shaft 240 is adapted to provide a guiding effect on the first slider 220 along the extension direction parallel to the guide chute 101; the second roller assembly 300 further includes a second guide shaft 340. One end of the second guide shaft 340 is fixedly connected to the third enclosure 140, and the other end movably penetrates through the second slider 320 along the extension direction parallel to the guide chute 101. In this way, when the second slider 320 is driven to move by the second screw 330, the second guide shaft 340 is adapted to provide a guiding effect on the second slider 320 along the extension direction parallel to the guide chute 101.
[0032] Specifically, in this embodiment, the first roller assembly 200 includes two first guide shafts 240, and the two first guide shafts 240 are respectively located on both sides of the first screw 230 along the direction perpendicular to the extension direction of the guide chute 101; the second roller assembly 300 includes two second guide shafts 340, and the two second guide shafts 340 are respectively located on both sides of the second screw 330 along the direction perpendicular to the extension direction of the guide chute 101.
[0033] Further, in this embodiment, a first groove (not shown in the figure) is provided on the bottom surface of the first slider 220 along the extension direction parallel to the guide chute 101, and a second groove is provided on the bottom surface of the second slider 320 along the extension direction parallel to the guide chute 101. In this way, during the bending test of the test plate body 20, if a foreign object (not shown in the figure) falls into the guide chute 101 of the fixed bottom plate 110, it can enter the first groove and / or the second groove, avoiding the foreign object from hindering the relative movement of the first slider 220 and / or the second slider 320, and after the bending test of the test plate body 20 is completed, the foreign object can be taken out by moving the first slider 220 and / or the second slider 320.
[0034] Further, in this embodiment, the metal sheet bending test device 10 further includes a first bracket 400, a second bracket 500, a first micrometer 600 and a second micrometer 700. Among them, the first bracket 400 and the second bracket 500 are respectively arranged on opposite sides of the fixed base plate 110. The arrangement directions of the first bracket 400 and the second bracket 500 are parallel to the extension direction of the guiding chute 101. And the first bracket 400 and the second bracket 500 are respectively erected above the first enclosure 120 and the third enclosure 140. The first micrometer 600 is detachably arranged on the first bracket 400 for measuring the displacement value of the first slider 220, and the second micrometer 700 is detachably arranged on the second bracket 500 for measuring the displacement value of the second slider 320. It should be noted that when the metal sheet bending test device 10 has not been used for a long time, the first micrometer 600 and the second micrometer 700 can be removed for independent storage to ensure the test accuracy of the first micrometer 600 and the second micrometer 700.
[0035] Please refer to Figure 3 and Figure 4 , in this embodiment, the metal sheet bending test device 10 further includes a press head assembly 800. A first guide post 410 is provided vertically at the top of the first bracket 400, and a second guide post 510 is provided vertically at the top of the second bracket 500. The press head assembly 800 is respectively movably inserted through the first guide post 410 and the second guide post 510 in the vertical direction and is suspended above the first pressure roller 210 and the second pressure roller 310.
[0036] Further, in this embodiment, the press head assembly 800 includes a movable support 810, a press head body 820 and a connecting body 830. Opposite ends of the movable support 810 along the direction parallel to the extension direction of the guiding chute 101 are respectively movably inserted through the first guide post 410 and the second guide post 510 in the vertical direction. A first gasket (not shown in the figure) is sleeved on one end of the first guide post 410 adjacent to the first bracket 400, and the first gasket is located between the first bracket 400 and the movable support 810. A second gasket (not shown in the figure) is sleeved on one end of the second guide post 510 adjacent to the second bracket 500, and the second gasket is located between the second bracket 500 and the movable support 810. The first gasket and the second gasket cooperate to prevent the movable support 810 from contacting and hitting the first bracket 400 and the second bracket 500. The press head body 820 is arranged in the central area of the side of the movable support 810 facing the first pressure roller 210 and the second pressure roller 310, and the connecting body 830 is arranged in the central area of the side of the movable support 810 facing away from the first pressure roller 210 and the second pressure roller 310 for fixedly connecting with the output force arm of the test instrument (not shown in the figure).
[0037] Further, in this embodiment, the above-mentioned indenter body 820 includes an indenter support 821 and a stamping indenter 823. The indenter support 821 is disposed in the central area of the movable support 810 on the side facing the first pressure roller 210 and the second pressure roller 310. A head slot 822 is provided on the side of the indenter support 821 facing away from the movable support 810. The head slot 822 penetrates through the opposite sides of the indenter support 821 along the direction perpendicular to the extension direction of the guiding chute 101. The stamping indenter 823 is inserted and fixed on the head slot 822 along the direction perpendicular to the extension direction of the guiding chute 101. It should be noted that by setting the head slot 822 to penetrate through the opposite sides of the indenter support 821 along the direction perpendicular to the extension direction of the guiding chute 101, it is convenient to replace the stamping indenter 823 with different radii.
[0038] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A metal sheet bending test device, characterized in that: The present invention comprises a fixed support, a first pressure roller assembly and a second pressure roller assembly, wherein the first pressure roller assembly comprises a first pressure roller, a first slider and a first screw, and the second pressure roller assembly comprises a second pressure roller, a second slider and a second screw, the first pressure roller and the second pressure roller are rotatably connected to the first slider and the second slider respectively, the first slider and the second slider are relatively movably connected to the fixed support, and the first pressure roller and the second pressure roller are arranged adjacent to each other, the first screw is movably penetrated through the fixed support and is threadedly connected to the first slider, and is used for adjusting the position of the first slider so that the first pressure roller moves toward or away from the second pressure roller, the second screw is movably penetrated through the fixed support and is threadedly connected to the second slider, and is used for adjusting the position of the second slider so that the second pressure roller moves toward or away from the first pressure roller.
2. The metal sheet bending test device according to claim 1, characterized in that: The fixed support includes a fixed base plate, a first enclosure, a second enclosure, a third enclosure and a fourth enclosure, the first enclosure and the third enclosure are respectively arranged on opposite sides of the fixed base plate, the second enclosure and the fourth enclosure are respectively arranged on opposite sides of the fixed base plate, the fixed base plate, the first enclosure, the second enclosure, the third enclosure and the fourth enclosure cooperate to form a linearly extended guide slide groove, the arrangement direction of the first enclosure and the third enclosure is parallel to the extension direction of the guide slide groove, the arrangement direction of the second enclosure and the fourth enclosure is perpendicular to the extension direction of the guide slide groove, the first screw rod is movably penetrated on the first enclosure rod and is threadedly connected to the first slider along the extension direction parallel to the guide slide groove, the second screw rod is movably penetrated on the third enclosure rod and is threadedly connected to the second slider along the extension direction parallel to the guide slide groove.
3. The metal sheet bending test device according to claim 2, characterized in that: The first pressure roller assembly also includes a first bearing, the first enclosure is fixedly connected to the outer ring of the first bearing, and the first screw is fixedly connected to the inner ring of the first bearing. The second pressure roller assembly also includes a second bearing, the third enclosure is fixedly connected to the outer ring of the second bearing, and the second screw is fixedly connected to the inner ring of the second bearing.
4. The metal sheet bending test device according to claim 2, characterized in that: The first pressure roller assembly also includes a first guide shaft, one end of which is fixedly connected to the first enclosure, and the other end of which is movably provided on the first slider along a direction parallel to the extension direction of the guide slide groove. The second pressure roller assembly also includes a second guide shaft, one end of which is fixedly connected to the third enclosure, and the other end of which is movably provided on the second slider along a direction parallel to the extension direction of the guide slide groove.
5. The metal sheet bending test device according to claim 4, characterized in that: The first pressure roller assembly includes two first guide shafts, which are respectively located on both sides of the first screw along a direction perpendicular to the extension direction of the guide slot, and the second pressure roller assembly includes two second guide shafts, which are respectively located on both sides of the second screw along a direction perpendicular to the extension direction of the guide slot.
6. The metal sheet bending test device according to claim 2, characterized in that: A first groove is formed on the bottom surface of the first sliding block in a direction parallel to the extending direction of the guide sliding groove, and a second groove is formed on the bottom surface of the second sliding block in a direction parallel to the extending direction of the guide sliding groove.
7. The metal sheet bending test device according to claim 2, characterized in that: The metal sheet bending test device also includes a first bracket, a second bracket, a first micrometer and a second micrometer. The first bracket and the second bracket are respectively arranged on opposite sides of the fixed base plate. The arrangement direction of the first bracket and the second bracket is parallel to the extension direction of the guide slide groove, and the first bracket and the second bracket are respectively mounted above the first enclosure and the third enclosure. The first micrometer is detachably arranged on the first bracket for measuring the displacement value of the first slider, and the second micrometer is detachably arranged on the second bracket for measuring the displacement value of the second slider.
8. The metal sheet bending test device according to claim 7, characterized in that: The metal sheet bending test device also includes a pressure head assembly, the first bracket is provided with a first guide column, the second bracket is provided with a second guide column, the pressure head assembly is movably arranged on the first guide column and the second guide column in the vertical direction, and is suspended above the first pressure roller and the second pressure roller.
9. The metal sheet bending test device according to claim 8, characterized in that: The pressure head assembly includes a movable support, a pressure head body and a connecting body. The movable support is movably arranged on the first guide column and the second guide column along the vertical direction at opposite ends parallel to the extension direction of the guide slide groove. The pressure head body is arranged in the central area of the movable support facing the first pressure roller and the second pressure roller, and the connecting body is arranged in the central area of the movable support facing away from the first pressure roller and the second pressure roller.
10. The metal sheet bending test device according to claim 9, characterized in that: The pressure head body includes a pressure head support and a punching pressure head. The pressure head support is arranged in the central area of the movable support facing the first pressure roller and the second pressure roller. The pressure head support is provided with a pressure head slot. The pressure head slot passes through the opposite sides of the pressure head support along a direction perpendicular to the extension direction of the guide slide groove. The punching pressure head is inserted and fixed on the pressure head slot along a direction perpendicular to the extension direction of the guide slide groove.