Wood board compression resistance detection equipment and method

Abstract

The invention relates to the technical field of board detection, in particular to wood board compression resistance detection equipment and method, and the wood board compression resistance detection equipment comprises a placement base, an abutting unit, a pressing mechanism and an adjusting unit. According to the invention, the acting force with a specified inclination angle is transmitted to the stress plate through the lower pressing plate and the hinge strip, and finally the acting force is transmitted to the rectangular bulge, so that the compression resistance of the vertical section of the rectangular bulge is detected, and the situation that the great wall plate is impacted by an external inclination angle during actual use is simulated; under the guidance of the V-shaped plate, the transverse moving plate and the downward pressing mechanism are driven to move to different positions for repeated detection operation, and single rectangular bulge is detected each time, so that the compression resistance data of each rectangular bulge are obtained, and the situation that the overall compression resistance data are taken as the compression resistance data of one or more rectangular bulges is avoided; the load applied to the local rectangular bulge of the great wall plate in actual use exceeds the actual bearing range of the great wall plate, so that the great wall plate is damaged.

Description

Technical Field

[0001] The invention relates to the technical field of board detection, and in particular to a compression detection device and method for a wooden board. Background Art

[0002] Wood panels are a type of building material made of wood or other wood materials, and are widely used in furniture manufacturing, building decoration and other fields, such as solid wood boards, plywood, fiberboards and Great Wall boards. Among them, Great Wall boards are a special decorative board, named for the multiple rectangular protrusions on its end face that are evenly distributed along the length direction (hereinafter referred to as rectangular protrusions). They are usually used for indoor and outdoor wall decoration, such as background walls, partitions, ceilings, etc.

[0003] Wood panels usually need to undergo a series of inspections before leaving the factory to ensure their quality and safety. The main inspection items include physical properties, chemical properties, appearance quality and environmental protection requirements. In order to ensure that wood panels can withstand the expected external loads without damage or deformation during use, the compressive properties of wood panels need to be tested. Therefore, Great Wall panels also need to undergo compressive properties testing before leaving the factory.

[0004] At present, when testing the compressive performance of the Great Wall board, it is necessary to set up both ends of the Great Wall board, then apply an external load perpendicular to its length direction to the Great Wall board, and observe the damage of the Great Wall board when subjected to external loads of different sizes, so as to obtain the compressive performance data of the Great Wall board. The current testing process has the following problems: 1. The compressive performance of the Great Wall board is jointly determined by all the rectangular protrusions thereon. During the current testing operation, external loads are usually applied to all the rectangular protrusions on the Great Wall board at the same time, which makes it difficult to detect the compressive performance of the Great Wall board when the area that is impacted during actual use does not cover all the rectangular protrusions.

[0005] 2. The Great Wall panels mainly rely on the vertical sections on both sides of the rectangular protrusions to bear external loads. However, during current testing, the direction of external loads is mostly from top to bottom and perpendicular to the length direction of the entire Great Wall panel. This testing method can only test the supporting strength of the Great Wall panels. For example, when the Great Wall panels are used as background walls and are subjected to external impact or force and the direction of the external impact and force is not perpendicular to the length direction of the Great Wall panels, the above-mentioned testing process is difficult to meet the data requirements under such circumstances, fails to simulate the actual usage situation, and is difficult to ensure the reliability of the test data. Summary of the invention

[0006] Based on this, it is necessary to provide a wood board compression resistance testing device to solve the above-mentioned problems of the prior art.

[0007] The present application provides a compression testing device for wooden boards, comprising: a placing base, wherein the upper end surface of the placing base is provided with two left-right symmetrical clamping plates for clamping the Great Wall board for sliding left and right, the placing base is provided with a clamping unit for locking the Great Wall board, the upper end surface of the placing base is provided with two sliding grooves that are symmetrical front and back and extend from left to right, a transverse plate is provided in the sliding groove through an electric slider for sliding, a fixed column with a vertical axis is fixedly provided on the upper end surface of the transverse plate, and a lifting plate is passed through the two fixed columns for sliding up and down together.

[0008] A pressing mechanism, a pressing mechanism for detecting the Great Wall plate is arranged on the lifting plate, the pressing mechanism includes a moving block, the lifting plate slides left and right and penetrates four moving blocks arranged in a matrix, the moving block and the lifting plate are jointly provided with a horizontally arranged spring, the moving block slides up and down and penetrates a moving column with a vertical axis, the lower end surfaces of all the moving columns are jointly fixed with a force plate, a transverse bar is provided on the lifting plate for sliding left and right, the transverse bar slides up and down through two movable columns with symmetry and vertical axis and a pressing plate, the pressing plate and the force plate are jointly hinged with two symmetric hinged bars, the pressing mechanism also includes a locking unit for fixing the rectangular part of the Great Wall plate, the locking unit includes two clamping plates distributed left and right and used to lock the rectangular protrusion.

[0009] An adjustment unit is provided on the lifting plate for adjusting the detection angle, and the adjustment unit comprises a threaded rod with a horizontal axis for adjusting the position of the transverse shifting bar and a fixing group for fixing the threaded rod.

[0010] According to a favorable embodiment, a threaded rod is rotatably provided on the lifting plate, the axis of which extends from left to right and passes through the right side of the lifting plate. The threaded rod passes through the transverse moving bar and is threadedly matched with the transverse moving bar. The adjustment unit also includes a rotating handle, and a strip-shaped rotating handle is slidably sleeved on the right end face of the threaded rod.

[0011] According to a preferred embodiment, the fixing group includes positioning columns, the left end face of the rotating handle is fixedly provided with two positioning columns distributed front and back and with axes extending from right to left, and the right end face of the placement base is provided with positioning grooves corresponding to the positioning columns one by one.

[0012] According to a favorable embodiment, the locking unit also includes a sliding block, and the force-bearing plate slides left and right and is penetrated by four sliding blocks arranged in a matrix. The lower end surfaces of the two sliding blocks opposite to each other are fixedly connected to the corresponding clamping plates, and the lower ends of the opposite surfaces of the two clamping plates are chamfered. A locking group is jointly arranged between the clamping plate and the adjacent movable column, and two springs five distributed front and back are jointly fixedly arranged between the clamping plate and the force-bearing plate through the mounting plate.

[0013] According to a favorable embodiment, the locking group includes a locking groove, the upper end face of the sliding block is provided with a locking groove with a vertical axis, a moving bar is provided on the moving column for sliding up and down, a locking column cooperating with the locking groove is provided on the lower end face of the moving bar, and two springs mounted on the corresponding moving column are fixedly arranged between the moving bar and the force plate, a pushing cylinder is provided on the moving column for sliding up and down and located above the moving bar, and the pushing cylinder is fixedly connected to the lower end face of the corresponding moving block.

[0014] According to a favorable embodiment, the locking group also includes an adjusting block, the lower end surface of the movable bar is slidably provided with the adjusting block, the locking column is fixedly provided on the lower end surface of the adjusting block, the front end surface of the movable bar is provided with a through groove, the front end surface of the adjusting block is fixedly provided with a bolt passing through the through groove, and the thread on the bolt is matched with a nut.

[0015] According to a favorable embodiment, the pressing mechanism also includes a guide rod, and the guide rod is penetrated through the transverse plate for sliding back and forth. V-shaped plates are fixedly provided on the opposite surfaces of the two guide rods, and the openings of the two V-shaped plates are facing the corresponding transverse plates. A spring three is commonly provided between the V-shaped plate and the corresponding transverse plate.

[0016] According to a favorable embodiment, the clamping unit includes a fixed block, and four fixed blocks arranged in a matrix are fixedly provided on the placement base, and clamping columns are penetrated through the fixed blocks for sliding left and right. The clamping plate is fixedly provided on all the clamping columns on the same side, and the two clamping plates are located between the fixed blocks on the left and right sides. A spring four mounted on the clamping column is commonly provided between the clamping plate and the fixed block, and a pressing plate is penetrated through the clamping plate for sliding up and down, and a locking group is provided on the pressing plate and the placement base.

[0017] According to a favorable embodiment, the locking group includes a rectangular block, two front-to-back symmetrical rectangular blocks are slidably arranged on the placement base, two bolts with vertical axes are fixedly arranged on the rectangular blocks, a rectangular plate located between the clamping plate and the rectangular block is slidably arranged on the clamping plate, two bolts penetrate the rectangular plate and the corresponding clamping plate, and two threads on the bolts are matched with two nuts located on the upper side of the clamping plate.

[0018] In summary, the present invention includes at least one of the following beneficial effects: First, in the present invention, the two transverse plates are guided to move to the front and rear sides of the corresponding rectangular protrusion through the cooperation of the front and rear V-shaped plates, and then the lower pressure plate transmits the force of the specified inclination angle to the force-bearing plate through the hinge bar, and finally the force is transmitted to the rectangular protrusion, and the compressive performance of the vertical section of the rectangular protrusion is tested, simulating the situation where the Great Wall board is subjected to the impact of the external inclination angle during actual use, thereby ensuring the reliability of the test data; secondly, the transverse plate and the lower pressure mechanism are moved to different positions through the guidance of the V-shaped plate to repeat the detection operation, and each time a single rectangular protrusion is tested separately to obtain the compressive performance data of each rectangular protrusion, thereby avoiding the problem of using the overall compressive performance data as the compressive performance data of a single or multiple rectangular protrusions, resulting in the load applied to the local rectangular protrusion of the Great Wall board exceeding its actual bearing range during actual use and causing damage.

[0019] 2. In the present invention, the inclination angle of the hinge strip is adjusted by the adjustment unit, and the detection process is repeated to test the compressive performance of the rectangular protrusion of the Great Wall board under forces at different inclination angles, thereby simulating the situation when the Great Wall board is actually used and subjected to forces in different inclination directions. The detection operation process is more in line with reality, and the reliability and authenticity of the detection data are improved.

[0020] 3. In the present invention, the clamping plate is fixed by inserting the locking column into the corresponding locking groove to prevent it from falling off when the inclined force is applied later. At the same time, the two clamping plates fix the rectangular protrusion to be tested, ensuring that the force angle of the rectangular protrusion is in the length direction of the hinge strip, avoiding the problem of increasing the error of the detection process due to the sliding of the force-bearing plate and the clamping plate in the left and right directions. The stability of the compression test process is improved through the above-mentioned locking. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0022] Figure 1 A three-dimensional structural schematic diagram of a wood board compression resistance testing device provided according to an embodiment of the present invention is shown.

[0023] Figure 2 A partial three-dimensional structural schematic diagram of a wood board compression resistance testing device provided according to an embodiment of the present invention is shown.

[0024] Figure 3A schematic diagram of the three-dimensional structure between the lifting plate, the lower pressing plate and the force-bearing plate provided according to an embodiment of the present invention is shown.

[0025] Figure 4 The embodiment of the present invention provides Figure 3 Enlarged view of point A in the middle.

[0026] Figure 5 The embodiment of the present invention provides Figure 3 Enlarged view of point B in the middle.

[0027] Figure 6 A partial cross-sectional front view between a lifting plate, a lower pressing plate and a hinge strip provided according to an embodiment of the present invention is shown.

[0028] Figure 7 The embodiment of the present invention provides Figure 6 Enlarged view of point C in the middle.

[0029] The above drawings include the following reference numerals: 1. placing base; 2. clamping plate; 3. clamping unit; 30. fixing block; 31. clamping column; 32. spring four; 33. clamping plate; 34. rectangular block; 35. bolt two; 36. rectangular plate; 4. sliding groove; 40. transverse plate; 41. fixing column; 42. lifting plate; 5. pressing mechanism; 50. moving block; 500. spring one; 501. moving column; 502. force plate; 503. transverse bar; 504. pressing plate; 505. hinge bar; 51. locking unit element; 510, clamping plate; 511, sliding block; 512, spring five; 513, locking group; 5130, locking groove; 5131, moving bar; 5132, locking column; 5133, spring two; 5134, pushing cylinder; 5135, adjusting block; 5136, through groove; 5137, bolt one; 52, adjusting unit; 520, threaded rod; 521, turning handle; 522, fixing group; 5220, positioning column; 5221, positioning groove; 53, guide rod; 530, V-shaped plate; 531, spring three. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0031] like Figure 1As shown, a compression testing device for wooden boards comprises: a placing base 1, wherein the upper end surface of the placing base 1 is provided with two left-right symmetrical clamping plates 2 for clamping the Great Wall board for sliding left and right, the placing base 1 is provided with a clamping unit 3 for locking the Great Wall board, the upper end surface of the placing base 1 is provided with two front-to-back symmetrical sliding grooves 4 extending from left to right, a transverse plate 40 is provided in the sliding groove 4 through an electric slider for sliding, the upper end surface of the transverse plate 40 is fixedly provided with a fixed column 41 with a vertical axis, a lifting plate 42 is passed through the two fixed columns 41 for sliding up and down together, and the lifting plate 42 is driven by an external hydraulic cylinder (not shown in the figure) to move up and down.

[0032] like Figure 1 , Figure 3 and Figure 6 As shown, the lifting plate 42 is provided with a pressing mechanism 5 for detecting the Great Wall plate, the pressing mechanism 5 includes a moving block 50, the lifting plate 42 slides left and right and is penetrated by four moving blocks 50 arranged in a matrix, the moving block 50 and the lifting plate 42 are jointly provided with a horizontally arranged spring 500, the moving block 50 slides up and down and is penetrated by a moving column 501 with a vertical axis, the lower end surfaces of all the moving columns 501 are jointly fixed with a force plate 502, the lifting plate 42 is provided with a transverse bar 503 that slides left and right, the transverse bar 503 is provided with a pressing plate 504 that slides up and down through two movable columns that are symmetrical front and back and have vertical axes, the pressing plate 504 and the force plate 502 are jointly hinged with two hinged bars 505 that are symmetrical front and back, the pressing mechanism 5 also includes a locking unit 51 for fixing the rectangular part of the Great Wall plate, the locking unit 51 includes two clamping plates 510 distributed left and right and used to lock the rectangular protrusion.

[0033] like Figure 1 , Figure 3 and Figure 6 As shown, the lifting plate 42 is provided with an adjustment unit 52 for adjusting the detection angle, and the adjustment unit 52 includes a threaded rod 520 with a horizontal axis for adjusting the position of the transverse shift bar 503 and a fixing group 522 for fixing the threaded rod 520 .

[0034] During operation, in the initial state, the electric slider drives the transverse plate 40 to move to the leftmost side of the sliding groove 4 to avoid the process of placing the Great Wall board. After that, the staff places the Great Wall board on the placement base 1 from front to back, and makes the rectangular protrusion of the Great Wall board face upward. During the placement process, the left and right positions of the Great Wall board are fixed by the two clamping plates 2 to facilitate the subsequent detection process.

[0035] The electric slider drives the transverse plate 40, the lifting plate 42 and the pressing mechanism 5 to move synchronously to the specified position and then stop moving. The position of the transverse bar 503 is adjusted by the adjustment unit 52 to control the angle of the hinge bar 505. Then, the transverse bar 503 and the hinge bar 505 are fixed by the fixing group 522. Then, the external hydraulic cylinder works to move the lifting plate 42 downward. During the downward movement of the lifting plate 42, the two clamping plates 510 are first clamped and fixed to the rectangular protrusion to be detected. At this time, the force plate 502 is close to the upper end surface of the rectangular protrusion. Then, as the lifting plate 42 continues to move downward, the lifting plate 42 drives the transverse bar 503 to exert a downward force on the lower pressing plate 504. The lower pressing plate 504 will The force is transmitted to the force plate 502, so the direction of the force on the force plate 502 is downward along the length direction of the hinge strip 505. The force is transmitted to the rectangular protrusion, and the lateral support compressive resistance performance of the rectangular protrusion is tested. After completing the test, the external hydraulic cylinder is reset, and the electric slider drives the lifting plate 42 to move to the next test position to perform another rectangular protrusion test. During the above-mentioned downward pressure test, the spring 500 is deformed. Therefore, after a single test is completed, the elastic force generated by the deformation of the spring 500 causes the moving block 50, the moving column 501 and the force plate 502 to reset to the initial position, so that different inclination angles can be adjusted during each test process to simulate the compressive resistance process in different situations.

[0036] After completing the inspection of all rectangular protrusions on the same Great Wall board, adjust the inclination angle of the hinge strip 505 through the adjustment unit 52, and repeat the above inspection process. The rectangular protrusions of the Great Wall board are inspected by the forces at different inclination angles to simulate the compressive performance of the Great Wall board when subjected to forces in different inclination directions during actual use. After completing the inspection, take out the Great Wall board and replace it with another Great Wall board for repeated inspection.

[0037] like Figure 1 , Figure 3 and Figure 4 As shown, a threaded rod 520 is rotatably provided on the lifting plate 42, and its axis extends from left to right and passes through the right side of the lifting plate 42. The threaded rod 520 passes through the transverse moving bar 503 and is threadedly matched with the transverse moving bar 503. The adjusting unit 52 also includes a rotating handle 521, and the right end surface of the threaded rod 520 is slidably sleeved with a bar-shaped rotating handle 521.

[0038] like Figure 3 and Figure 4 As shown, the fixing group 522 includes positioning columns 5220, and the left end surface of the rotating handle 521 is fixedly provided with two positioning columns 5220 distributed front to back and with axes extending from right to left, and the right end surface of the placement base 1 is provided with positioning grooves 5221 corresponding to the positioning columns 5220 one by one.

[0039] like Figure 1 , Figure 3 , Figure 5 and Figure 6 As shown, the locking unit 51 also includes a sliding block 511, and four sliding blocks 511 arranged in a matrix are inserted on the force-bearing plate 502 and slide left and right. The lower end surfaces of the two sliding blocks 511 opposite to each other are fixedly connected to the corresponding clamping plates 510, and the lower ends of the opposite surfaces of the two clamping plates 510 are chamfered. A locking group 513 is commonly provided between the clamping plate 510 and the adjacent movable column 501, and two springs 512 distributed front and back are commonly fixedly provided between the clamping plate 510 and the force-bearing plate 502 via a mounting plate.

[0040] like Figure 3 , Figure 5 and Figure 6 As shown, the locking group 513 includes a locking groove 5130, the upper end surface of the sliding block 511 is provided with a locking groove 5130 with a vertical axis, the moving column 501 is provided with a moving bar 5131 which is slidably sleeved up and down, the lower end surface of the moving bar 5131 is provided with a locking column 5132 which cooperates with the locking groove 5130, and a spring 2 5133 which is sleeved on the corresponding moving column 501 is fixedly arranged between the moving bar 5131 and the force plate 502, and a pushing cylinder 5134 which is located above the moving bar 5131 and is slidably sleeved up and down on the moving column 501, and the pushing cylinder 5134 is fixedly connected to the lower end surface of the corresponding moving block 50.

[0041] like Figure 3 , Figure 5 , Figure 6 and Figure 7 As shown, the locking group 513 also includes an adjusting block 5135, the lower end surface of the moving bar 5131 is slidably provided with the adjusting block 5135, the locking column 5132 is fixedly provided on the lower end surface of the adjusting block 5135, the front end surface of the moving bar 5131 is provided with a through groove 5136, the front end surface of the adjusting block 5135 is fixedly provided with a bolt 5137 penetrating the through groove 5136, and the bolt 5137 is threadedly matched with a nut 1.

[0042] Before performing the compression test, the rotating handle 521 is manually moved to the right so that the positioning column 5220 on the rotating handle 521 exits the corresponding positioning groove 5221. The manually rotating handle 521 drives the threaded rod 520 to rotate synchronously. The threaded cooperation between the threaded rod 520 and the transverse bar 503 makes the transverse bar 503 move left and right. In the process of the transverse bar 503 moving left and right, the transverse bar 503 drives the movable column and the lower pressure plate 504 thereon to move synchronously. The movable column and the lower pressure plate 504 move up and down adaptively, thereby changing the inclination angle of the hinge bar 505, that is, the inclination angle of the hinge bar 505 is adjusted by rotating the threaded rod 520, thereby controlling the application angle of subsequent force, and then moving the rotating handle 521 so that the rotating handle 521 drives the positioning column 5220 to be re-engaged in the corresponding positioning groove 5221, thereby fixing the threaded rod 520 and the transverse bar 503.

[0043] During operation, when the electric slider drives the transverse plate 40 and the lifting plate 42 to move to the corresponding positions, the external hydraulic cylinder works to move the lifting plate 42 downward, and the lifting plate 42 drives the force-bearing plate 502 to move downward synchronously, and the force-bearing plate 502 drives the two clamping plates 510 thereon to move downward synchronously, and the chamfers on the opposite sides of the two clamping plates 510 facilitate the two clamping plates 510 to be clamped on both sides of the rectangular protrusion to be detected, and the corresponding spring five 512 is compressed. The elastic force generated by the compression of the spring five 512 makes the two clamping plates 510 close to the rectangular protrusion, and in this process, the clamping plate 510 drives the corresponding sliding block 511 to move synchronously.

[0044] It should be noted that before carrying out the inspection operation, the width of the rectangular protrusion to be inspected is obtained by manual measurement, and the nut 1 is turned to move the adjustment block 5135 and the corresponding locking column 5132 so that the clamping plate 510 is in close contact with the rectangular protrusion and the spacing between the corresponding movable column 501 and the spacing between the locking column 5132 and the movable column 501 are the same. Then, the nut 1 is tightened, and the locking column 5132 is locked by the threaded cooperation between the nut 1 and the bolt 1 5137. That is, after the clamping plate 510 is in close contact with the rectangular protrusion, the locking column 5132 is located directly above the corresponding locking groove 5130. The above process facilitates the inspection process of rectangular protrusions of different widths and improves the applicability of the equipment.

[0045] The lifting plate 42 drives the pushing cylinder 5134 to move downward synchronously through the moving block 50, and the pushing cylinder 5134 contacts with the moving bar 5131 before the lifting plate 42 contacts with the lower pressure plate 504. As the pushing cylinder 5134 moves downward, the pushing cylinder 5134 pushes the moving bar 5131 and the locking column 5132 thereon to move downward synchronously, and the locking column 5132 is inserted into the corresponding locking groove 5130. The clamping plate 510 is fixed in the above manner to prevent the clamping plate 510 from moving when an inclined force is applied subsequently. The spring 2 5133 provided in the above process is compressed, and the elastic force generated by the deformation of the spring 2 5133 in the subsequent resetting process enables the locking column 5132 to exit the corresponding locking groove 5130.

[0046] As the lifting plate 42 continues to move downward, the lifting plate 42 contacts the upper end surface of the lower pressure plate 504, and the lifting plate 42 exerts a downward force on the lower pressure plate 504, and the lower pressure plate 504 transmits the force to the force-bearing plate 502 through the hinge bar 505. The force-bearing plate 502 and the two clamping plates 510 exert a downward force on the rectangular protrusion along the length direction of the hinge bar 505, simulating the situation when the Great Wall board is subjected to an external inclined force, and the Great Wall board under this situation is subjected to a compression test. It should be noted that a sensor for detecting the magnitude of the force is provided on the lower pressure plate 504 (not shown in the figure), and during the detection process, it is observed whether the rectangular protrusion is tilted and damaged when a set value of pressure is applied, and whether the compression resistance performance is qualified is judged, thereby completing a single detection operation.

[0047] After completing the above detection operation, the lifting plate 42 moves up and resets, and the electric slider drives the transverse plate 40 to move to the opposite side of the next rectangular protrusion to be detected, and repeats the above detection.

[0048] like Figure 1 and Figure 2 As shown, the pressing mechanism 5 also includes a guide rod 53, and the guide rod 53 is inserted through the transverse plate 40 for sliding back and forth. V-shaped plates 530 are fixedly provided on the opposite surfaces of the two guide rods 53, and the openings of the two V-shaped plates 530 are both facing the corresponding transverse plate 40. A spring 531 is commonly provided between the V-shaped plate 530 and the corresponding transverse plate 40.

[0049] When the electric slider drives the transverse plate 40 to move, the inclined surface of the V-shaped plate 530 facilitates the V-shaped plate 530 to move from left to right between two adjacent rectangular protrusions and into the rectangular protrusion. When the guide rod 53 moves from the outside of the rectangular protrusion to the inside of the rectangular protrusion, the spring three 531 is compressed, and then the top corner part of the V-shaped plate 530 is inserted into the corresponding rectangular protrusion. The elastic force generated by the deformation of the spring three 531 makes the V-shaped plate 530 press against the rectangular protrusion, guiding the lifting plate 42 to move to the top of the rectangular protrusion to be tested, so as to facilitate the subsequent pressure resistance testing operation.

[0050] Secondly, the left and right positions of the transverse plate 40 and the lifting plate 42 are limited by snapping the front and rear V-shaped plates 530 into the rectangular protrusions, so as to facilitate the detection operation.

[0051] like Figure 1 and Figure 2 As shown, the clamping unit 3 includes a fixed block 30, and four fixed blocks 30 arranged in a matrix are fixedly set on the placement base 1. The fixed blocks 30 are all penetrated by clamping columns 31 for sliding left and right. The clamping plate 2 is fixedly set on all the clamping columns 31 on the same side, and the two clamping plates 2 are located between the fixed blocks 30 on the left and right sides. A spring 32 mounted on the clamping column 31 is commonly provided between the clamping plate 2 and the fixed block 30. A clamping plate 33 slides up and down and penetrates the clamping plate 2. A locking group is provided on the clamping plate 33 and the placement base 1.

[0052] like Figure 1 and Figure 2 As shown, the locking group includes a rectangular block 34, and two front-to-back symmetrical rectangular blocks 34 are slidably arranged on the placement base 1, and a second bolt 35 with a vertical axis is fixedly arranged on the rectangular block 34. A rectangular plate 36 located between the clamping plate 33 and the rectangular block 34 is slidably arranged up and down on the clamping plate 2, and the second bolt 35 passes through the rectangular plate 36 and the corresponding clamping plate 33, and the second bolt 35 is threadedly matched with a second nut located on the upper side of the clamping plate 33.

[0053] During operation, the electric slider drives the transverse plate 40 to move to the leftmost side of the sliding groove 4, and then the staff places the Great Wall plate on the placement base 1 from front to back. During the placement of the Great Wall plate, the Great Wall plate squeezes the clamping plates 2 on both sides, so that the two clamping plates 2 move away from each other, and the spring four 32 is compressed. The elastic force generated by the compression of the spring four 32 makes the clamping plate 2 close to the side of the Great Wall plate, and the two clamping plates 2 cooperate with each other to perform preliminary limit clamping on the left and right directions of the Great Wall plate.

[0054] During the process of placing the Great Wall plate, the clamping plate 33 is located above the Great Wall plate, and then the nut 2 is manually tightened. Through the threaded cooperation between the nut 2 and the bolt 2 35, the rectangular plate 36 and the clamping plate 33 are locked. At this time, the rectangular plate 36 is in close contact with the upper end surface of the placement base 1. The friction between the rectangular plate 36 and the placement base 1 after locking makes the rectangular plate 36, the clamping plate 33 and the placement base 1 mutually locked. While locking the two abutting plates 2, the Great Wall plate is pressed downward, and the left and right directions and the up and down directions of the Great Wall plate are limited and fixed, which improves the stability in the subsequent detection process, facilitates the subsequent compression test of the tilt angle, and avoids the Great Wall plate from sliding in the left and right directions during the compression test, which affects the test results. It should be noted that a rubber layer can be set on the lower end surface of the rectangular plate 36 to increase the friction between it and the placement base 1.

[0055] In addition, the present invention also provides a compression resistance testing process for wooden boards, comprising the following steps: S1, placing samples: placing the Great Wall board on the placement base 1 from front to back. During this process, the Great Wall board squeezes the clamping plates 2 on both sides, and the elastic force generated by the compression of the spring four 32 makes the clamping plates 2 close to the side of the Great Wall board, thereby performing preliminary limit clamping on the Great Wall board in the left and right directions.

[0056] S2. Locking the sample: Manually tighten the second nut, and through the threaded cooperation between the second nut and the second bolt 35, lock the rectangular plate 36 and the clamping plate 33, and press the Great Wall plate downward while locking the two abutting plates 2, so as to limit and fix the Great Wall plate in the left and right directions and the up and down directions.

[0057] S3. Inspection preparation: The electric slider drives the transverse plate 40, the lifting plate 42 and the pressing mechanism 5 to move synchronously to the specified position and then stop moving. The inclination angle of the hinge strip 505 is adjusted and locked by the adjustment unit 52. The external hydraulic cylinder works to move the lifting plate 42 downward, and the two clamping plates 510 are close to the rectangular protrusions. Then the locking column 5132 is inserted into the corresponding locking groove 5130. The clamping plate 510 is fixed in the above manner.

[0058] S4. Compression resistance test: The external hydraulic cylinder continues to work to make the lifting plate 42 move downward continuously. The lifting plate 42 contacts the upper end surface of the lower pressure plate 504. The lifting plate 42 exerts a downward force on the lower pressure plate 504. The lower pressure plate 504 transfers the force to the force-bearing plate 502 through the hinge bar 505. The force-bearing plate 502 and the two clamping plates 510 exert a downward force on the rectangular protrusion along the length direction of the hinge bar 505.

[0059] S5. Replace the sample: After completing the inspection operation in step S4, the lifting plate 42 moves up and resets, and the electric slider drives the transverse plate 40 to move to the opposite side of the next rectangular protrusion to be inspected, and repeats the above inspection. After completing the inspection operation of the Great Wall plate, the electric slider moves to the leftmost side of the sliding slot 4, and the Great Wall plate is manually replaced.

[0060] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0061] In addition, the terms "first", "second", "one", and "two" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "one", and "two" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0062] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A wood board compression testing device, characterized in that: include: A placing base (1) is provided, wherein the upper end surface of the placing base (1) is provided with two left-right symmetrical pressing plates (2) for pressing against the Great Wall plate, and the placing base (1) is provided with a pressing unit (3). The upper end surface of the placing base (1) is provided with two front-to-back symmetrical sliding grooves (4) extending from left to right, and a transverse moving plate (40) is provided in the sliding groove (4) for sliding through an electric slider, and a fixing column (41) with a vertical axis is fixedly provided on the upper end surface of the transverse moving plate (40), and a lifting plate (42) is passed through the two fixing columns (41) for sliding up and down together; A pressing mechanism (5) is provided on the lifting plate (42), the pressing mechanism (5) comprising a moving block (50), the lifting plate (42) slides left and right and penetrates four moving blocks (50) arranged in a matrix, the moving block (50) and the lifting plate (42) are jointly provided with a horizontally arranged spring 1 (500), the moving block (50) slides up and down and penetrates a moving column (501) with a vertical axis, and the lower end surfaces of all the moving columns (501) are jointly fixedly arranged A force-bearing plate (502) is provided, a transverse bar (503) is provided on the lifting plate (42) for sliding left and right, a lower pressing plate (504) is provided on the transverse bar (503) for sliding up and down through a movable column, two front-to-back symmetrical hinge bars (505) are hingedly connected between the lower pressing plate (504) and the force-bearing plate (502), and the lower pressing mechanism (5) also includes a locking unit (51) for fixing the rectangular part of the Great Wall plate, and the locking unit (51) includes a clamping plate (510) for locking the rectangular protrusion; An adjustment unit (52) for adjusting the detection angle is arranged on the lifting plate (42), and the adjustment unit (52) comprises a threaded rod (520) with a horizontal axis and used for adjusting the position of the transverse shift bar (503), and a fixing group (522) for fixing the threaded rod (520).

2. A wood board compression testing device according to claim 1, characterized in that: A threaded rod (520) is rotatably provided on the lifting plate (42) and has an axis extending from left to right and penetrating the right side of the lifting plate (42). The threaded rod (520) penetrates the transverse moving bar (503) and is threadedly matched with the transverse moving bar (503). The adjustment unit (52) also includes a rotating handle (521). The right end surface of the threaded rod (520) is slidably sleeved with a bar-shaped rotating handle (521).

3. A wood board compression testing device according to claim 2, characterized in that: The fixing group (522) comprises positioning posts (5220), and the left end surface of the rotating handle (521) is fixedly provided with two positioning posts (5220) distributed front and back and with axes extending from right to left, and the right end surface of the placement base (1) is provided with positioning grooves (5221) corresponding one to one with the positioning posts (5220).

4. The wood board compression testing device according to claim 1, characterized in that: The locking unit (51) also includes a sliding block (511), and four sliding blocks (511) arranged in a matrix are inserted through the force-bearing plate (502) and slide left and right. The lower end surfaces of the two sliding blocks (511) facing each other are fixedly connected to the corresponding clamping plates (510). The lower ends of the opposite surfaces of the two clamping plates (510) are chamfered. A locking group (513) is commonly arranged between the clamping plate (510) and the adjacent moving column (501). Two springs (512) distributed front and back are commonly fixedly arranged between the clamping plate (510) and the force-bearing plate (502) via a mounting plate.

5. The wood board compression testing device according to claim 4, characterized in that: The locking group (513) includes a locking groove (5130), the upper end surface of the sliding block (511) is provided with a locking groove (5130) with a vertical axis, a moving bar (5131) is slidably sleeved up and down on the moving column (501), and a locking column (5132) cooperating with the locking groove (5130) is provided on the lower end surface of the moving bar (5131), and a spring 2 (5133) sleeved on the corresponding moving column (501) is fixedly arranged between the moving bar (5131) and the force plate (502), and a pushing cylinder (5134) located above the moving bar (5131) is slidably sleeved up and down on the moving column (501), and the pushing cylinder (5134) is fixedly connected to the lower end surface of the corresponding moving block (50).

6. The wood board compression testing device according to claim 5, characterized in that: The locking group (513) further comprises an adjusting block (5135), the lower end surface of the moving bar (5131) is provided with the adjusting block (5135) for sliding left and right, the locking column (5132) is fixedly provided on the lower end surface of the adjusting block (5135), the front end surface of the moving bar (5131) is provided with a through groove (5136), the front end surface of the adjusting block (5135) is fixedly provided with a bolt (5137) that penetrates the through groove (5136), and the bolt (5137) is threadedly matched with a nut (5137).

7. The wood board compression testing device according to claim 1, characterized in that: The pressing mechanism (5) further comprises a guide rod (53), the guide rod (53) being slidably passed through the transverse plate (40) in a forward and backward manner, V-shaped plates (530) being fixedly arranged on opposite surfaces of the two guide rods (53), the openings of the two V-shaped plates (530) being facing the corresponding transverse plate (40), and a spring three (531) being arranged between the V-shaped plate (530) and the corresponding transverse plate (40).

8. The wood board compression testing device according to claim 1, characterized in that: The clamping unit (3) comprises a fixed block (30), and four fixed blocks (30) arranged in a matrix are fixedly arranged on the placement base (1), and clamping columns (31) are penetrated through the fixed blocks (30) so as to slide left and right. The clamping plate (2) is fixedly arranged on all the clamping columns (31) on the same side, and the two clamping plates (2) are located between the fixed blocks (30) on the left and right sides. A spring four (32) sleeved on the clamping column (31) is commonly arranged between the clamping plate (2) and the fixed block (30), and a pressing plate (33) is penetrated through the pressing plate (2) so as to slide up and down, and a locking group is arranged on the pressing plate (33) and the placement base (1).

9. The wood board compression testing device according to claim 8, characterized in that: The locking group comprises a rectangular block (34), two front-to-back symmetrical rectangular blocks (34) are slidably arranged on the placement base (1), a second bolt (35) with a vertical axis is fixedly arranged on the rectangular block (34), a rectangular plate (36) located between the clamping plate (33) and the rectangular block (34) is slidably arranged on the clamping plate (2), the second bolt (35) passes through the rectangular plate (36) and the corresponding clamping plate (33), and a nut second located on the upper side of the clamping plate (33) is threadedly matched on the second bolt (35).

10. A method for testing the compression resistance of a wood board, which is accomplished by using the wood board compression resistance testing device according to claim 5, characterized in that: The following steps are involved: S1. Placing the sample: placing the Great Wall plate on the placement base (1) from front to back, and performing preliminary limit clamping of the Great Wall plate in the left and right directions through the cooperation of two abutting plates (2); S2. Locking the sample: manually tighten the nut 2, and press the Great Wall plate downwards while locking the two abutting plates (2), so as to limit and fix the Great Wall plate in the left-right direction and the up-down direction; S3, test preparation: the electric slider drives the lateral plate (40), the lifting plate (42) and the pressing mechanism (5) to move synchronously to the specified position and then stop moving, the inclination angle of the hinge bar (505) is adjusted and locked by the adjustment unit (52), the lifting plate (42) moves downward, so that the two clamping plates (510) are close to the rectangular protrusion, and then the locking column (5132) is inserted into the corresponding locking groove (5130) to fix the clamping plate (510); S4, compression test: the lifting plate (42) continues to move downward, the lifting plate (42) contacts the upper end surface of the lower pressing plate (504), the lifting plate (42) exerts a downward force on the lower pressing plate (504), the lower pressing plate (504) transmits the force to the force-bearing plate (502) through the hinge bar (505), and the force-bearing plate (502) and the two clamping plates (510) exert a downward force on the rectangular protrusion along the length direction of the hinge bar (505); S4, replacing the sample: After completing the inspection operation in step S4, the lifting plate (42) moves up and resets, and the electric slider drives the transverse plate (40) to move to the opposite side of the next rectangular protrusion to be inspected, and repeats the above inspection. After completing the inspection operation of the Great Wall plate, the electric slider moves to the leftmost side of the sliding groove (4), and the Great Wall plate is manually replaced.

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