A metal plate through-hole compression test device

Abstract

The present invention provides a metal plate through-hole compression test device, which relates to the technical field of compression test, and comprises a mounting frame, wherein the bottom of the mounting frame is fixedly connected to a bottom plate, the top of the bottom plate is fixedly connected to a top platform, a hydraulic device is installed on the surface of the top platform, and the mounting frame comprises a support platform arranged inside, a plurality of constraint rods are arranged on the surface of the support platform in a ring array, a plurality of U-shaped support blocks are arranged on the surface of the support platform in a ring array, an auxiliary cover is arranged on the outside of the support platform, a first adjustment block and a second adjustment block are arranged inside the U-shaped support block, a plurality of first springs are arranged between the first adjustment block and the second adjustment block, and a third screw rod is threadedly connected to a first threaded hole opened on the surface of the U-shaped support block; the present invention synchronously adjusts the distance that the U-shaped support block of the support assembly moves toward the center, and can change the size of the support surface of the metal plate to simulate the support conditions in different actual use scenarios.

Description

Technical Field

[0001] The invention relates to the technical field of compression testing, in particular to a metal plate through-hole compression testing device. Background Art

[0002] Through holes on metal plates are usually used to install fasteners (such as bolts, screws, etc.) or allow other components to pass through. In order to ensure that these holes can withstand a certain pressure without deformation or rupture under actual use conditions, these through holes need to be subjected to pressure tests, so a pressure test device is required.

[0003] When the existing metal plate through-hole compression test device is performing the test, the metal plate is placed on a support platform, and the support platform is usually fixed in shape. However, in the actual application scenario of the metal plate, the support method of the metal plate may be different from the support method during the test, especially for some special-shaped metal plates with holes. Therefore, the support method of the metal plate during the test will affect the constraint conditions of the metal plate, which will cause the force during the metal plate through-hole test to be different from the force during actual use, which may cause a large deviation between the test results and the actual use. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a metal plate through-hole compression test device. By synchronously adjusting the distance that the U-shaped support block of the support assembly moves toward the center, the size of the support surface of the metal plate can be changed to simulate the support conditions in different actual usage scenarios, so that the stress state of the metal plate through-hole during the test is closer to the actual usage situation, thereby improving the accuracy of the test results.

[0005] In order to solve the above technical problems, the technical solution of the present invention is as follows:

[0006] A metal plate through-hole compression test device comprises a mounting frame, the bottom of the mounting frame is fixedly connected to a bottom plate, the top of the bottom plate is fixedly connected to a top platform, and a hydraulic device is installed on the surface of the top platform, including:

[0007] A support platform is provided inside the mounting frame, and a plurality of restraining rods are provided on the surface of the support platform in a circular array, and the restraining rods are used to fix the side edges of the metal plate;

[0008] The surface of the support platform is provided with a plurality of U-shaped support blocks in a circular array, and the U-shaped support blocks are used to support the bottom of the metal plate, and the size of the support surface of the metal plate can be changed by synchronously adjusting the moving distance of the U-shaped support blocks toward the axis of the support platform;

[0009] An auxiliary cover is provided on the outer side of the support platform, and the auxiliary cover is used to provide auxiliary support for the metal plate, thereby facilitating the movement of the restraining rod and the U-shaped support block;

[0010] A first adjustment block and a second adjustment block are arranged inside the U-shaped support block, and a plurality of first springs are arranged between the first adjustment block and the second adjustment block. When the constraint rod contacts the side of the metal plate through the extension of the first springs, the first adjustment block and the second adjustment block move relative to each other;

[0011] A third screw is threadedly connected to the first threaded hole on the surface of the U-shaped support block. The rotation of the third screw causes the U-shaped support block and the constraint rod to move relative to each other, so as to adjust the support area of ​​the bottom of the metal plate.

[0012] Furthermore, a two-axis movable slide is installed on the upper surface of the base plate, and a tubular support block is fixedly connected to the surface of the two-axis movable slide. The support platform is fixedly connected to the surface of the tubular support block, and the auxiliary cover body is slidably connected to the surface of the tubular support block. The surface of the auxiliary cover body is provided with a plurality of second adjustment grooves in a circular array, and the constraint rods are respectively located inside the corresponding second adjustment grooves.

[0013] Furthermore, a liquid holding box is fixedly connected to the surface of the tubular support block, a plurality of sliding sleeves are arranged in a circular array on the surface of the liquid holding box, the sliding sleeves are fixedly connected to a first circular hole opened on the surface of the liquid holding box, a plurality of sliding rods are fixedly connected to the bottom surface of the auxiliary cover body in a circular array, the sliding rods are respectively slidably connected to the corresponding sliding sleeves, a liquid volume regulating tube is fixedly connected to the through opening opened on the curved surface of the liquid holding box, a first screw rod is threadedly connected to the second threaded hole opened on the surface of the liquid volume regulating tube, a piston block is slidably connected to the inside of the liquid volume regulating tube, and the first screw rod is fixedly connected to the piston block.

[0014] Furthermore, the surface of the support platform is provided with a plurality of first adjustment grooves in a circular array, the U-shaped support block is slidably connected to the support platform through the corresponding first adjustment grooves, the second adjustment block and the first adjustment block are both slidably connected to the corresponding U-shaped support block, the friction force between the second adjustment block and the U-shaped support block is greater than the friction force between the first adjustment block and the U-shaped support block, the constraint rod is rotatably connected to the corresponding upper surface of the second adjustment block through a first bearing, the first spring is arranged in a first accommodating groove provided on the surface of the first adjustment block, and the two ends of the first spring are respectively fixedly connected to the corresponding first adjustment block and the second adjustment block.

[0015] Furthermore, a screw fixing block is fixedly connected in a second accommodating groove opened at a center position on the surface of the support platform, a second screw and a hexagonal prism rod are arranged inside the first adjusting groove, the second screw is rotatably connected in a second circular hole opened on the surface of the screw fixing block and a third circular hole opened on the inner wall of the first adjusting groove through two second bearings respectively, one end of the hexagonal prism rod is fixedly connected to the surface of the screw fixing block, the hexagonal prism rod is rotatably connected in a fourth circular hole opened on the inner wall of the first adjusting groove through a third bearing, the hexagonal prism rod is slidably connected in a fifth through hole starting from the surface of the third screw, the second screw is threadedly connected in a second thread groove opened on the surface of the first adjusting block, the second screw is located in an avoidance hole opened on the surface of the second adjusting block, and the second screw does not contact the second adjusting block.

[0016] Furthermore, the surface of the support platform is rotatably connected to a fourth bevel gear through a fourth bearing, the ends of the hexagonal prism rods are fixedly connected to third bevel gears, the third bevel gears are located on the outside of the support platform, and the third bevel gears are meshingly connected to the fourth bevel gears, an adjusting motor is installed on the bottom surface of the support platform, the adjusting motor is located inside the tubular support block, the output shaft of the adjusting motor passes through the reserved opening starting from the surface of the support platform and extends to the inside of the screw fixing block, the end of the adjusting motor output shaft is fixedly connected to the second bevel gear, and a plurality of first bevel gears are arranged in a ring array inside the screw fixing block, the first bevel gears are respectively fixedly connected to the corresponding second screws, and the first bevel gears are meshingly connected to the second bevel gears.

[0017] Furthermore, a second rectangular block is symmetrically fixedly connected to the surface of the second adjustment block, a second strip groove is symmetrically opened on the surface of the U-shaped support block, the second rectangular block is slidably connected to the U-shaped support block through the corresponding second strip grooves, the first rectangular block is symmetrically fixedly connected to the surface of the U-shaped support block, the bottom surface of the first rectangular block is in conflict with the upper surface of the support platform, the bottom surface of the second rectangular block is in conflict with the upper surface of the first rectangular block, and the inner top surface of the auxiliary cover body is provided with first strip grooves at both sides of the second adjustment groove.

[0018] Furthermore, a plurality of second teeth are equidistantly fixedly connected to the inner top surface of the auxiliary cover body near the position of the first strip groove, a plurality of first teeth are equidistantly fixedly connected to the inside of the first strip groove, a plurality of fourth teeth are equidistantly fixedly connected to the upper surface of the second rectangular block at a position outside the second strip groove, and a plurality of third teeth are equidistantly fixedly connected to the surface of the first rectangular block.

[0019] Furthermore, a plurality of adjustment handles are fixedly connected to the bottom surface of the fourth bevel gear in an annular array, a plurality of through openings are opened on the surface of the auxiliary cover in an annular array, and the adjustment handles are respectively located inside the corresponding through openings.

[0020] Furthermore, two groups of third adjustment blocks are arranged in parallel on the upper surface of the U-shaped support block, and the third adjustment blocks are all located in grooves symmetrically opened on the upper surface of the U-shaped support block. A number of circular slots are equidistantly opened in the grooves opened on the upper surface of the U-shaped support block, and the third adjustment blocks are inserted into the corresponding circular slots through the columnar portion of the bottom surface.

[0021] The above solution of the present invention includes at least the following beneficial effects:

[0022] The above solution of the present invention can make the metal plate stable in the horizontal direction when it is subjected to the test pressure by means of the constraint rods arranged in a circular array on the surface of the support platform, and the constraint rods can adapt to the shape of the metal plate and fit the metal plate by means of the second adjustment block, the first adjustment block and the first spring, so that the device can stably support the metal plate;

[0023] By arranging the U-shaped support block, the screw fixing block, the second screw, the hexagonal prism rod and the third screw, the support mode of the U-shaped support block on the metal plate can be adjusted, so that the through-hole compression test of the metal plate is closer to the actual use environment of the metal plate, and thus the test result is closer to the actual use situation;

[0024] Through the arrangement of the auxiliary cover body, the liquid holding box, the liquid volume adjusting tube, the first screw rod and the piston block, the metal plate is first auxiliary supported by the auxiliary cover body before being fixed and the supporting mode is adjusted. After the adjustment is completed, the auxiliary cover body is moved downward to remove the support of the metal plate by the auxiliary cover body, and the restraint rod and the U-shaped support block are restrained by the auxiliary cover body, so that the metal plate can be further stabilized during the through-hole compression test. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure provided by the present invention.

[0026] Figure 2 Schematic diagram of the tubular support block in the present invention.

[0027] Figure 3 It is a schematic diagram of the piston block in the present invention.

[0028] Figure 4 It is a schematic diagram of the regulating motor in the present invention.

[0029] Figure 5 It is a schematic diagram of the auxiliary cover body in the present invention.

[0030] Figure 6 It is a schematic diagram of the support platform in the present invention.

[0031] Figure 7 Schematic diagram of the hexagonal prism rod in the present invention.

[0032] Figure 8 It is a schematic diagram of the first adjustment block in the present invention.

[0033] Fig. 9 It is a schematic diagram of the second screw rod in the present invention.

[0034] Fig.10 The present invention Figure 5 Enlarged view of point A in the middle.

[0035] Fig.11 The present invention Figure 5 Enlarged view of point B in the middle.

[0036] Fig.12 It is a schematic diagram of the U-shaped support block in the present invention.

[0037] In the figure: 101, mounting frame; 102, bottom plate; 103, top platform; 104, hydraulic device;

[0038] 201, two-axis movable slide; 202, tubular support block; 203, liquid holding box; 204, sliding sleeve; 205, sliding rod; 206, liquid volume adjustment tube; 207, first screw rod; 208, piston block; 209, auxiliary cover; 210, support platform; 211, first adjustment groove; 212, U-shaped support block; 213, second screw rod; 214, screw rod fixing block; 215, first bevel gear; 216, second bevel gear; 217, hexagonal prism rod; 218, third bevel gear; 219, third screw rod; 220, first adjustment block; 221, second adjustment block; 222, restraining rod; 223, fourth bevel gear; 224, adjustment handle; 225, through opening; 226, second adjustment slot; 227, first strip slot; 228, first tooth; 229, second tooth; 230, first rectangular block; 231, second rectangular block; 232, second strip slot; 233, third tooth; 234, fourth tooth; 235, adjustment motor; 236, first spring;

[0039] 301. A third adjusting block; 302. A circular slot. DETAILED DESCRIPTION

[0040] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0041] like Figures 1 to 12 As shown, an embodiment of the present invention provides a metal plate through-hole compression test device, including a mounting frame 101, a bottom plate 102 is fixedly connected to the bottom of the mounting frame 101, a top platform 103 is fixedly connected to the top of the bottom plate 102, and a hydraulic device 104 is installed on the surface of the top platform 103, including:

[0042] A support platform 210 is disposed inside the mounting frame 101, and a plurality of restraining rods 222 are disposed on the surface of the support platform 210 in a circular array, and the restraining rods 222 are used to fix the side edges of the metal plate;

[0043] The surface of the support platform 210 is provided with a plurality of U-shaped support blocks 212 in a circular array, and the U-shaped support blocks 212 are used to support the bottom of the metal plate. The size of the support surface of the metal plate can be changed by synchronously adjusting the moving distance of the U-shaped support blocks 212 toward the axis of the support platform 210;

[0044] An auxiliary cover 209 is provided on the outer side of the support platform 210, and the auxiliary cover 209 is used to provide auxiliary support for the metal plate, thereby facilitating the movement of the restraining rod 222 and the U-shaped support block 212;

[0045] The U-shaped support block 212 is provided with a first adjustment block 220 and a second adjustment block 221. A plurality of first springs 236 are provided between the first adjustment block 220 and the second adjustment block 221. The first springs 236 are extended to allow the constraint rod 222 to contact the side of the metal plate, and then the first adjustment block 220 and the second adjustment block 221 move relative to each other.

[0046] A third screw rod 219 is threadedly connected to the first threaded hole on the surface of the U-shaped support block 212. The rotation of the third screw rod 219 causes the U-shaped support block 212 and the constraint rod 222 to move relative to each other, so as to adjust the support area of ​​the bottom of the metal plate.

[0047] In the embodiment of the present invention, when the device is in the initial state, the upper surface of the auxiliary cover body 209 is flush with the upper surface of the U-shaped support block 212, and the restraining rods 222 are located inside the second adjustment slot 226 near the edge of the auxiliary cover body 209;

[0048] When the through hole of the metal plate is subjected to a compression test, the metal plate is placed on the upper surface of the auxiliary cover 209, and then the constraint rod 222 is gradually moved from the edge of the support platform 210 to the center of the surface of the support platform 210. During this process, the constraint rod 222 stops moving after it hits the edge of the metal plate. During the movement of the constraint rod 222, the friction between the second adjustment block 221 and the U-shaped support block 212 is greater than the friction between the U-shaped support block 212 and the support platform 210. Then, during the movement of the constraint rod 222 toward the center of the surface of the support platform 210, the U-shaped support block 212 and the corresponding constraint rod 222 remain relatively still. At this time, the bottom surface of the metal plate near the edge is supported by the U-shaped support block 212. According to the actual application scenario of the metal plate, the support surface at the edge of the metal plate can be adjusted by synchronously adjusting the relative position between the U-shaped support block 212 and the corresponding constraint rod 222, so that the stress state of the metal plate during the through hole compression test is close to the stress state during actual use.

[0049] When adjusting the relative position between the U-shaped support block 212 and the constraint rod 222, by rotating the third screw rod 219, the U-shaped support block 212 is displaced relative to the constraint rod 222 under the cooperation between the third screw rod 219 and the first threaded hole on the surface of the U-shaped support block 212;

[0050] When the restraining rod 222 and the U-shaped support block 212 are adjusted to the required positions, the auxiliary cover 209 is moved downward, so that the metal plate is restrained in the horizontal direction by the restraining rod 222 and supported by the U-shaped support block 212 .

[0051] A two-axis movable slide 201 is installed on the upper surface of the base plate 102, and a tubular support block 202 is fixedly connected to the surface of the two-axis movable slide 201. The support platform 210 is fixedly connected to the surface of the tubular support block 202, and the auxiliary cover body 209 is slidably connected to the surface of the tubular support block 202. The surface of the auxiliary cover body 209 is provided with a plurality of second adjustment grooves 226 in a circular array, and the constraint rods 222 are respectively located in the corresponding second adjustment grooves 226.

[0052] In an embodiment of the present invention, the two-axis movable slide 201 controls the sliding table on its surface to move the tubular support block 202 in the horizontal direction, thereby driving the metal plate above the auxiliary cover 209 to move in the horizontal direction, so as to facilitate the pressure test of the through holes at different positions on the surface of the metal plate through the hydraulic device 104. The support table 210 is fixedly connected to the tubular support block 202, so that the pressure borne by the U-shaped support block 212 when supporting the metal plate is transferred to the sliding table of the two-axis movable slide 201 through the support table 210 and the tubular support block 202, so that the metal plate remains stable when subjected to pressure. The second adjustment groove 226 is opened to facilitate the movement of the constraint rod 222 from the edge position of the support table 210 to the center position of the surface of the support table 210.

[0053] A liquid holding box 203 is fixedly connected to the surface of the tubular support block 202. A plurality of sliding sleeves 204 are arranged in an annular array on the surface of the liquid holding box 203. The sliding sleeve 204 is fixedly connected to a first circular hole opened on the surface of the liquid holding box 203. A plurality of sliding rods 205 are fixedly connected to the bottom surface of the auxiliary cover body 209 in an annular array. The sliding rods 205 are respectively slidably connected to the corresponding sliding sleeves 204. A liquid volume regulating tube 206 is fixedly connected to the through opening opened on the curved surface of the liquid holding box 203. A first screw rod 207 is threadedly connected to the second threaded hole opened on the surface of the liquid volume regulating tube 206. A piston block 208 is slidably connected to the inside of the liquid volume regulating tube 206. The first screw rod 207 is fixedly connected to the piston block 208.

[0054] In an embodiment of the present invention, the interior of the liquid holding box 203 is filled with liquid. In the process of adjusting the auxiliary cover body 209 to move up and down, the first screw 207 inside the liquid volume regulating tube 206 is rotated, so that the piston block 208 inside the liquid volume regulating tube 206 moves along the axial direction of the liquid volume regulating tube 206 under the action of the first screw 207, thereby changing the amount of liquid inside the sliding sleeve 204, and then causing the sliding rod 205 to move upward or downward inside the sliding sleeve 204 as the amount of liquid changes, thereby driving the auxiliary cover body 209 to move upward or downward.

[0055] The surface of the support platform 210 is provided with a plurality of first adjustment grooves 211 in a circular array, the U-shaped support block 212 is slidably connected to the support platform 210 through the corresponding first adjustment grooves 211, the second adjustment block 221 and the first adjustment block 220 are both slidably connected to the corresponding U-shaped support block 212, the friction force between the second adjustment block 221 and the U-shaped support block 212 is greater than the friction force between the first adjustment block 220 and the U-shaped support block 212, the constraint rod 222 is rotatably connected to the corresponding upper surface of the second adjustment block 221 through the first bearing, the first spring 236 is arranged in the first accommodating groove provided on the surface of the first adjustment block 220, and the two ends of the first spring 236 are respectively fixedly connected to the corresponding first adjustment block 220 and the second adjustment block 221.

[0056] In the embodiment of the present invention, in the process of the U-shaped support block 212 moving toward the center position of the surface of the support platform 210, the first adjustment block 220 is moved toward the center axis position of the support platform 210. The movement of the first adjustment block 220 causes the second adjustment block 221 to move following the movement of the first adjustment block 220 under the action of the first spring 236. When the constraint rod 222 on the surface of the second adjustment block 221 contacts the side of the metal plate, the second adjustment block 221 stops moving under the constraint of the constraint rod 222 and the metal plate. Because the friction force between the second adjustment block 221 and the U-shaped support block 212 is greater than the friction force between the first adjustment block 220 and the U-shaped support block 212, the first adjustment block 220 overcomes the elastic potential energy of the first spring 236 and continues to move toward the center axis of the support platform 210. The U-shaped support block 212 remains stationary relative to the corresponding constraint rod 222 until all the constraint rods 222 contact the side of the metal plate.

[0057] A screw fixing block 214 is fixedly connected in a second accommodating groove opened near the center position on the surface of the support platform 210, and a second screw 213 and a hexagonal prism rod 217 are provided inside the first adjusting groove 211. The second screw 213 is rotatably connected in a second circular hole opened on the surface of the screw fixing block 214 and a third circular hole opened on the inner wall of the first adjusting groove 211 through two second bearings respectively. One end of the hexagonal prism rod 217 is fixedly connected to the surface of the screw fixing block 214, and the hexagonal prism rod 217 is rotatably connected in a fourth circular hole opened on the inner wall of the first adjusting groove 211 through a third bearing. The hexagonal prism rod 217 is slidably connected in a fifth through hole starting from the surface of the third screw 219. The second screw 213 is threadedly connected in a second threaded groove opened on the surface of the first adjusting block 220. The second screw 213 is located in an avoidance hole opened on the surface of the second adjusting block 221, and the second screw 213 does not contact the second adjusting block 221.

[0058] The surface of the support platform 210 is rotatably connected to the fourth bevel gear 223 through the fourth bearing, and the ends of the hexagonal prism rods 217 are fixedly connected to the third bevel gears 218, and the third bevel gears 218 are located on the outside of the support platform 210. The third bevel gears 218 are meshingly connected with the fourth bevel gear 223. An adjusting motor 235 is installed on the bottom surface of the support platform 210. The adjusting motor 235 is located inside the tubular support block 202. The output shaft of the adjusting motor 235 passes through the reserved opening starting from the surface of the support platform 210 and extends to the inside of the screw fixing block 214. The end of the output shaft of the adjusting motor 235 is fixedly connected with the second bevel gear 216. The interior of the screw fixing block 214 is provided with a plurality of first bevel gears 215 in a ring array. The first bevel gears 215 are respectively fixedly connected to the corresponding second screws 213, and the first bevel gears 215 are meshingly connected with the second bevel gear 216.

[0059] In the embodiment of the present invention, the adjusting motor 235 is operated, and the operation of the adjusting motor 235 causes the second bevel gear 216 inside the screw fixing block 214 to drive the first bevel gear 215 to rotate, and the rotation of the first bevel gear 215 causes the corresponding second screw 213 to rotate, and the rotation of the second screw 213 causes the first adjusting block 220 on its surface to move along the axial direction of the second screw 213, and when all the restraining rods 222 are in contact with the side of the metal plate, the operation of the adjusting motor 235 is stopped;

[0060] Rotate the fourth bevel gear 223. The rotation of the fourth bevel gear 223 causes the third bevel gear 218 to drive the corresponding hexagonal prism rod 217 to rotate. The rotation of the hexagonal prism rod 217 causes the third screw rod 219 to rotate following the rotation of the hexagonal prism rod 217. The rotation of the third screw rod 219 causes the U-shaped support block 212 to move relative to the second adjustment block 221 until the U-shaped support block 212 moves to the required position.

[0061] The surface of the second adjustment block 221 is symmetrically fixedly connected with the second rectangular block 231, the surface of the U-shaped support block 212 is symmetrically provided with second strip grooves 232, the second rectangular block 231 is slidingly connected with the U-shaped support block 212 through the corresponding second strip grooves 232, the surface of the U-shaped support block 212 is symmetrically fixedly connected with the first rectangular block 230, the bottom surface of the first rectangular block 230 is in conflict with the upper surface of the support platform 210, the bottom surface of the second rectangular block 231 is in conflict with the upper surface of the first rectangular block 230, and the inner top surface of the auxiliary cover body 209 is provided with first strip grooves 227 at both sides of the second adjustment groove 226.

[0062] In the embodiment of the present invention, the relative distance between the U-shaped support block 212 and the constraint rod 222 is constrained by the second rectangular block 231 on the surface of the second adjustment block 221, so that the auxiliary cover body 209 moves downward until the second rectangular block 231 is completely embedded in the corresponding first strip groove 227. At this time, the first rectangular block 230 is in contact with the inner top surface of the auxiliary cover body 209. The auxiliary cover body 209 squeezes the second rectangular block 231 and the first rectangular block 230 so that the second adjustment block 221 and the U-shaped support block 212 and the auxiliary cover body 209 remain relatively still, thereby keeping the metal plate above the auxiliary cover body 209 stable during the through-hole pressure test.

[0063] A plurality of second teeth 229 are equidistantly fixedly connected to the inner top surface of the auxiliary cover body 209 near the first strip groove 227, a plurality of first teeth 228 are equidistantly fixedly connected to the inside of the first strip groove 227, a plurality of fourth teeth 234 are equidistantly fixedly connected to the upper surface of the second rectangular block 231 at the outer side of the second strip groove 232, and a plurality of third teeth 233 are equidistantly fixedly connected to the surface of the first rectangular block 230.

[0064] In the embodiment of the present invention, during the downward movement of the auxiliary cover body 209, the mutual engagement between the first tooth 228 and the corresponding fourth tooth 234, and the mutual engagement between the second tooth 229 and the corresponding third tooth 233 further enhance the restraining force of the auxiliary cover body 209 on the second rectangular block 231 and the first rectangular block 230, thereby maintaining the stability of the support and lateral restraint of the metal plate by the U-shaped support block 212 and the restraint rod 222.

[0065] The bottom surface of the fourth bevel gear 223 is fixedly connected with a plurality of adjustment handles 224 in an annular array. The surface of the auxiliary cover 209 is provided with a plurality of through openings 225 in an annular array. The adjustment handles 224 are respectively located inside corresponding through openings 225 .

[0066] In the embodiment of the present invention, when the fourth bevel gear 223 is rotated, by holding any one of the adjustment handles 224, the fourth bevel gear 223 is driven to rotate through the adjustment handle 224 until the fourth bevel gear 223 rotates to a required position, and when the auxiliary cover body 209 moves downward to stably engage between the second tooth 229 and the corresponding third tooth 233, the auxiliary cover body 209 presses the upper surface of the adjustment handle 224 through the inner wall of the through opening 225, thereby keeping the position of the fourth bevel gear 223 stable, and further keeping the position of the U-shaped support block 212 stable.

[0067] Two groups of third adjustment blocks 301 are arranged in parallel on the upper surface of the U-shaped support block 212. The third adjustment blocks 301 are all located in grooves symmetrically opened on the upper surface of the U-shaped support block 212. A number of circular slots 302 are equidistantly opened in the grooves opened on the upper surface of the U-shaped support block 212. The third adjustment blocks 301 are inserted into the corresponding circular slots 302 through the columnar portion of the bottom surface.

[0068] In an embodiment of the present invention, when supporting a metal plate, the U-shaped support block 212 can be moved to a suitable position according to the actual use scenario of the metal plate, and the number and position of the third adjustment blocks 301 on the upper surface of the U-shaped support block 212 can be adjusted to make the supporting effect of the U-shaped support block 212 on the metal plate further fit the actual use of the metal plate, thereby making the compression test results of the through holes of the metal plate closer to the actual use. The setting of the circular slot 302 makes it easy to adjust the position between the third adjustment block 301 and the U-shaped support block 212.

[0069] It should be noted that: the sliding table of the two-axis movable slide table 201 is in contact with the upper surface of the bottom plate 102, so that the bottom plate 102 supports the sliding table of the two-axis movable slide table 201, thereby making the sliding table stable when subjected to the test pressure;

[0070] When the hexagonal prism rod 217 rotates, the extrusion force between the surface of the hexagonal prism rod 217 and the contact surface of the third screw rod 219 increases, so that the friction force between the hexagonal prism rod 217 and the third screw rod 219 is greater than the friction force between the U-shaped support block 212 and the second adjustment block 221, so that when the third screw rod 219 rotates, the U-shaped support block 212 is displaced relative to the second adjustment block 221; when the hexagonal prism rod 217 does not rotate, the friction force between the hexagonal prism rod 217 and the third screw rod 219 is less than the friction force between the U-shaped support block 212 and the second adjustment block 221, so that when the second adjustment block 221 drives the U-shaped support block 212 to move through the friction force, relative sliding occurs between the third screw rod 219 and the hexagonal prism rod 217;

[0071] The installation and use of the hydraulic device 104 and the two-axis movable slide 201 are well known in the prior art and will not be described in detail here.

[0072] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A metal plate through-hole compression test device, comprising a mounting frame (101), the bottom of the mounting frame (101) being fixedly connected to a bottom plate (102), the top of the bottom plate (102) being fixedly connected to a top platform (103), the surface of the top platform (103) being installed with a hydraulic device (104), characterized in that: include: A support platform (210) is arranged inside the mounting frame (101), and a plurality of restraining rods (222) are arranged in a ring array on the surface of the support platform (210), and the restraining rods (222) are used to fix the side edges of the metal plate; The surface of the support platform (210) is provided with a plurality of U-shaped support blocks (212) in a ring array, and the U-shaped support blocks (212) are used to support the bottom of the metal plate, and the size of the support surface of the metal plate is changed by synchronously adjusting the moving distance of the U-shaped support blocks (212) toward the axis of the support platform (210); An auxiliary cover body (209) is provided on the outer side of the support platform (210), and the auxiliary cover body (209) is used to provide auxiliary support for the metal plate, thereby facilitating the movement of the restraining rod (222) and the U-shaped support block (212); A first adjustment block (220) and a second adjustment block (221) are arranged inside the U-shaped support block (212); a plurality of first springs (236) are arranged between the first adjustment block (220) and the second adjustment block (221); and the first springs (236) are extended to cause the constraint rod (222) to contact the side of the metal plate, so that the first adjustment block (220) and the second adjustment block (221) move relative to each other; A third screw rod (219) is threadedly connected to a first threaded hole formed on the surface of the U-shaped support block (212); the U-shaped support block (212) and the restraining rod (222) are relatively moved by rotation of the third screw rod (219) to adjust the support area of ​​the bottom of the metal plate; The surface of the support platform (210) is provided with a plurality of first adjustment grooves (211) in a ring array; the U-shaped support block (212) is slidably connected to the support platform (210) via the corresponding first adjustment grooves (211); the second adjustment block (221) and the first adjustment block (220) are both slidably connected to the corresponding U-shaped support block (212); the friction force between the second adjustment block (221) and the U-shaped support block (212) is greater than the friction force between the first adjustment block (220) and the U-shaped support block (212); the constraint rod (222) is rotatably connected to the upper surface of the corresponding second adjustment block (221) via a first bearing; the first spring (236) is arranged in a first accommodating groove provided on the surface of the first adjustment block (220); and the two ends of the first spring (236) are respectively fixedly connected to the corresponding first adjustment block (220) and the second adjustment block (221).

2. The metal plate through-hole compression test device according to claim 1, characterized in that: A two-axis movable slide (201) is installed on the upper surface of the base plate (102); a tubular support block (202) is fixedly connected to the surface of the two-axis movable slide (201); the support platform (210) is fixedly connected to the surface of the tubular support block (202); the auxiliary cover body (209) is slidably connected to the surface of the tubular support block (202); a plurality of second adjustment grooves (226) are formed in a circular array on the surface of the auxiliary cover body (209); and the restraining rods (222) are respectively located inside corresponding second adjustment grooves (226).

3. The metal plate through-hole compression test device according to claim 2, characterized in that: The surface of the tubular support block (202) is fixedly connected to a liquid holding box (203); the surface of the liquid holding box (203) is provided with a plurality of sliding sleeves (204) in an annular array; the sliding sleeves (204) are fixedly connected to a first circular hole opened on the surface of the liquid holding box (203); the bottom surface of the auxiliary cover body (209) is fixedly connected to a plurality of sliding rods (205) in an annular array; the sliding rods (205) are respectively slidably connected to the inside of the corresponding sliding sleeves (204); a liquid volume regulating tube (206) is fixedly connected to the through opening opened on the curved surface of the liquid holding box (203); a first screw rod (207) is threadedly connected to the inside of a second threaded hole opened on the surface of the liquid volume regulating tube (206); a piston block (208) is slidably connected to the inside of the liquid volume regulating tube (206); the first screw rod (207) is fixedly connected to the piston block (208).

4. The metal plate through-hole compression test device according to claim 3, characterized in that: A screw fixing block (214) is fixedly connected in a second receiving groove opened near the center position of the surface of the support platform (210); a second screw (213) and a hexagonal prism rod (217) are arranged inside the first adjustment groove (211); the second screw (213) is rotatably connected to a second circular hole opened on the surface of the screw fixing block (214) and a third circular hole opened on the inner wall of the first adjustment groove (211) through two second bearings; one end of the hexagonal prism rod (217) is fixedly connected to the screw fixing block (214). The hexagonal prism rod (217) is rotatably connected to a fourth circular hole opened on the inner wall of the first adjustment groove (211) via a third bearing, the hexagonal prism rod (217) is slidably connected to a fifth through hole starting from the surface of the third screw rod (219), the second screw rod (213) is threadedly connected to a second thread groove opened on the surface of the first adjustment block (220), the second screw rod (213) is located in an avoidance hole opened on the surface of the second adjustment block (221), and the second screw rod (213) does not contact the second adjustment block (221).

5. The metal plate through-hole compression test device according to claim 4, characterized in that: The surface of the support platform (210) is rotatably connected to a fourth bevel gear (223) via a fourth bearing; the ends of the hexagonal prism rods (217) are fixedly connected to third bevel gears (218); the third bevel gears (218) are located outside the support platform (210); the third bevel gears (218) are meshingly connected to the fourth bevel gears (223); an adjustment motor (235) is installed on the bottom surface of the support platform (210); the adjustment motor (235) is located inside the tubular support block (202); The output shaft of the regulating motor (235) passes through a reserved opening starting from the surface of the support platform (210) and extends to the interior of the screw fixing block (214); the end of the output shaft of the regulating motor (235) is fixedly connected to a second bevel gear (216); a plurality of first bevel gears (215) are arranged in a ring array inside the screw fixing block (214); the first bevel gears (215) are respectively fixedly connected to the corresponding second screws (213); and the first bevel gears (215) are all meshedly connected to the second bevel gears (216).

6. The metal plate through-hole compression test device according to claim 5, characterized in that: The surface of the second adjustment block (221) is symmetrically fixedly connected with a second rectangular block (231); the surface of the U-shaped support block (212) is symmetrically provided with second strip grooves (232); the second rectangular block (231) is slidably connected to the U-shaped support block (212) via the corresponding second strip grooves (232); the surface of the U-shaped support block (212) is symmetrically fixedly connected with a first rectangular block (230); the bottom surface of the first rectangular block (230) is in contact with the upper surface of the support platform (210); the bottom surface of the second rectangular block (231) is in contact with the upper surface of the first rectangular block (230); and the inner top surface of the auxiliary cover body (209) is provided with first strip grooves (227) at positions on both sides of the second adjustment groove (226).

7. The metal plate through-hole compression test device according to claim 6, characterized in that: A plurality of second teeth (229) are equidistantly fixedly connected to the inner top surface of the auxiliary cover body (209) at a position close to the first strip groove (227), a plurality of first teeth (228) are equidistantly fixedly connected to the inside of the first strip groove (227), a plurality of fourth teeth (234) are equidistantly fixedly connected to the upper surface of the second rectangular block (231) at a position outside the second strip groove (232), and a plurality of third teeth (233) are equidistantly fixedly connected to the surface of the first rectangular block (230).

8. The metal plate through-hole compression test device according to claim 7, characterized in that: The bottom surface of the fourth bevel gear (223) is fixedly connected to a plurality of adjustment handles (224) in an annular array, and the surface of the auxiliary cover body (209) is provided with a plurality of through openings (225) in an annular array, and the adjustment handles (224) are respectively located inside corresponding to the through openings (225).

9. The metal plate through-hole compression test device according to claim 8, characterized in that: Two groups of third adjustment blocks (301) are arranged in parallel on the upper surface of the U-shaped support block (212); the third adjustment blocks (301) are all located in grooves symmetrically opened on the upper surface of the U-shaped support block (212); a plurality of circular slots (302) are equidistantly opened in the groove opened on the upper surface of the U-shaped support block (212); the third adjustment blocks (301) are inserted into the corresponding circular slots (302) through the columnar portions of the bottom surface.

Images