Springback strength testing device for laminated slab

Abstract

The utility model discloses a device for testing the rebound strength of a laminated slab, which relates to the field of laminated slab testing and comprises a base, a turnover frame hinged to the front end of the top of the base, hydraulic cylinders arranged on two sides of the base, the hydraulic cylinders hinged to the base and the turnover frame, a clamping assembly arranged on the turnover frame, and a position adjusting mechanism arranged at the rear end of the top of the base. A mounting base is mounted on the position adjusting mechanism, an electric telescopic cylinder is fixed to the top of the mounting base, a movable table is fixed to the front end of an output shaft of the electric telescopic cylinder, and a rebound instrument is fixed to the top of the movable table. The device has the beneficial effects that the rebound apparatus moves in the vertical direction and the horizontal direction through the position adjusting mechanism, so that the rebound apparatus can test any point on the laminated slab, and the rebound apparatus is always kept vertical to the laminated slab in the testing process, so that the testing accuracy is improved, the rebound apparatus does not need to be manually held by hand for testing, and the testing efficiency is improved. And labor is saved.

Description

Technical Field

[0001] The utility model relates to the field of laminated slab testing, in particular to a device for testing the rebound strength of a laminated slab. Background Art

[0002] During the production process of a laminated slab, there are many steps. To ensure the production quality of the laminated slab, it is necessary to test the strength of the laminated slab before it is shipped to the construction site.

[0003] Currently, when testing the rebound strength of a laminated slab, a rebound hammer is mainly used for testing. The impact rod of the rebound hammer is abutted against the surface of the laminated slab without steel bars for testing. Multiple points need to be taken for testing. The patent document with the publication number CN119246299B discloses a device for testing the rebound strength of a laminated slab, which is mainly provided with a turning frame. During the process of turning the laminated slab, the surface without steel bars is cleaned, and finally the laminated slab is turned to a vertical state, and then the rebound hammer is manually held for testing.

[0004] Since manually holding the rebound hammer is not stable enough, the impact rod may not be perpendicular to the laminated slab, which affects the force exerted by the impact rod on the laminated slab, resulting in inaccurate test results. Moreover, the laminated slab is relatively large. After the laminated slab is turned to a vertical state, it is difficult to test the points at a higher position, resulting in incomplete test points and affecting the final test data. In addition, the particulate matter on the laminated slab will also affect the test results of the rebound hammer. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a device for testing the rebound strength of a laminated slab to solve the above problems.

[0006] The utility model realizes the above purpose through the following technical solutions:

[0007] A device for testing the rebound strength of a laminated slab includes a base. The front end of the top of the base is hinged with a turning frame. Hydraulic cylinders are arranged on both sides of the base. The hydraulic cylinders are hinged with the base and the turning frame. A clamping assembly is arranged on the turning frame. A position adjusting mechanism is arranged at the rear end of the top of the base. An installation seat is installed on the position adjusting mechanism. An electric telescopic cylinder is fixed on the top of the installation seat. The front end of the output shaft of the electric telescopic cylinder is fixed with a movable table. A rebound hammer is fixed on the top of the movable table. Side plates are fixed on both sides of the movable table. A cleaning mechanism is arranged on the side plates. The cleaning mechanism includes a cross plate slidably connected to the side of the side plate. A roller is rotatably connected to the front end of the cross plate. A cleaning shaft is rotatably connected between the two cross plates. The cleaning mechanism further includes a transmission assembly for driving the cleaning shaft to rotate by the roller. A rebound mechanism for resetting the cross plate is arranged on the side plate.

[0008] Preferably, an inclined groove is formed on the side surface of the side plate, a pin shaft is fixed at the rear end of the cross plate, and the cross plate is slidably connected to the side plate through the cooperation of the inclined groove and the pin shaft.

[0009] Preferably, the transmission assembly includes a driving gear and a driven gear that mesh with each other. The driving gear is fixedly connected to the roller, and the driven gear is fixedly connected to the cleaning shaft.

[0010] Preferably, a flat groove is formed on the side surface of the side plate. The elastic return mechanism includes a slider slidably connected in the flat groove. An elastic telescopic rod is fixed on the slider, and the telescopic end of the elastic telescopic rod is fixedly connected to the cross plate.

[0011] Preferably, the position adjusting mechanism includes two columns symmetrically arranged left and right. The columns are fixed on the top of the base. A vertical electric slide rail is fixed on the inner side surface of the columns. A horizontal electric slide rail is installed between the two vertical electric slide rails, and the mounting seat is installed on the horizontal electric slide rail.

[0012] Preferably, the clamping assembly includes a turntable rotatably connected to one side of the flipping frame. The turntable is in interference fit with the flipping frame. A clamping oil cylinder is fixed on one side of the turntable. The output end of the clamping oil cylinder is fixed with a first clamping plate. The clamping assembly further includes a reduction motor fixedly connected to the other side of the flipping frame. The output end of the reduction motor is fixed with a second clamping plate. The first clamping plate and the second clamping plate are in a U shape and the upper side edge is shorter than the lower side edge.

[0013] The beneficial effects are as follows: The rebound instrument is moved in the vertical and horizontal directions through the position adjusting mechanism, so that the rebound instrument can measure any point on the laminated board, and the rebound instrument is always kept perpendicular to the laminated board during the measurement process, thereby improving the measurement accuracy. Moreover, there is no need to manually hold the rebound instrument for measurement, saving labor; by setting the cleaning mechanism, during the process of the rebound instrument approaching the laminated board, the cleaning mechanism automatically cleans the measurement point, avoiding the influence of the particulate matter on the laminated board on the measurement result.

[0014] The additional technical features and their advantages of the present invention will be more clearly described in the following description content, or can be understood through the specific practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the drawings:

[0016] Figure 1 is a perspective view of a laminated board rebound strength testing device according to the present invention;

[0017] Figure 2 is a left view of a laminated board rebound strength testing device according to the present invention;

[0018] Figure 3 is a perspective view of the mounting base of a rebound strength testing device for a laminated board according to the present utility model;

[0019] Figure 4 is a perspective view of the positional relationship between the cleaning mechanism and the rebound instrument of a rebound strength testing device for a laminated board according to the present utility model;

[0020] Figure 5 is a left view of the mounting base of a rebound strength testing device for a laminated board according to the present utility model;

[0021] Figure 6 is a perspective view of the mounting structure of the rebound instrument of a rebound strength testing device for a laminated board according to the present utility model;

[0022] Figure 7 is a perspective view of the cleaning mechanism of a rebound strength testing device for a laminated board according to the present utility model;

[0023] Figure 8 is a perspective view of the flipping frame of a rebound strength testing device for a laminated board according to the present utility model.

[0024] Explanation of reference numerals is as follows: 1, base; 2, position adjusting mechanism; 201, column; 202, vertical electric slide rail; 203, horizontal electric slide rail; 3, mounting base; 301, electric telescopic cylinder; 302, movable table; 303, rebound instrument; 304, clamp; 4, side plate; 401, inclined groove; 402, flat groove; 5, cleaning mechanism; 501, cross plate; 502, roller; 503, driving gear; 504, driven gear; 505, cleaning shaft; 6, pin shaft; 7, rebound mechanism; 701, slider; 702, elastic telescopic rod; 8, flipping frame; 801, hydraulic cylinder; 802, turntable; 803, clamping hydraulic cylinder; 804, first clamping plate; 805, reduction motor; 806, second clamping plate. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model.

[0027] The present utility model will be further described below in conjunction with the accompanying drawings:

[0028] As Figures 1 - 8 shown, a rebound strength testing device for a laminated slab includes a base 1. At the front end of the top of the base 1, a flipping frame 8 is hinged. The flipping frame 8 is used to place the laminated slab to be tested. Hydraulic cylinders 801 are arranged on both sides of the base 1. The hydraulic cylinders 801 are hinged to the base 1 and the flipping frame 8. The flipping frame 8 is driven to flip by the hydraulic cylinders 801, so that the flipping frame 8 drives the laminated slab to flip, and the laminated slab is flipped from a horizontal state to a vertical state. A clamping assembly is arranged on the flipping frame 8. The clamping assembly includes a turntable 802 rotatably connected to one side of the flipping frame 8. The turntable 802 is in interference fit with the flipping frame 8 to ensure that the turntable 802 will not rotate randomly. A clamping oil cylinder 803 is fixed to one side of the turntable 802 by bolts. The output end of the clamping oil cylinder 803 is fixed with a first clamping plate 804. The clamping assembly further includes a reduction motor 805 connected to the other side of the flipping frame 8 by screws. The output end of the reduction motor 805 is fixed with a second clamping plate 806. When the flipping frame 8 is in a horizontal state, the laminated slab is hoisted into the flipping frame 8. At this time, the side of the laminated slab with steel bars faces upward. The clamping oil cylinder 803 drives the first clamping plate 804 to move, so that the first clamping plate 804 and the second clamping plate 806 clamp and fix the laminated slab. Then the hydraulic cylinder 801 drives the flipping frame 8 to flip upward and drives the laminated slab to flip. During the flipping process of the flipping frame 8, the reduction motor 805 drives the second clamping plate 806 to rotate, and the second clamping plate 806 drives the laminated slab to rotate in the flipping frame 8. Since the turntable 802 is rotatably connected to the flipping frame 8, the turntable 802, the clamping oil cylinder 803 and the first clamping plate 804 will also rotate. When the flipping frame 8 is flipped to a vertical state, the laminated slab rotates 180° in the flipping frame 8. At this time, the side of the laminated slab with steel bars faces forward, and the rear side of the laminated slab is a plane. In this way, it is convenient for the rebound instrument 303 to test the rear side of the laminated slab. The first clamping plate 804 and the second clamping plate 806 are U-shaped and the upper side edge is shorter than the lower side edge. Such a setting facilitates placing the laminated slab horizontally on the lower side edges of the first clamping plate 804 and the second clamping plate 806, and then making the first clamping plate 804 approach the second clamping plate 806. At this time, the upper and lower side edges of the first clamping plate 804 and the second clamping plate 806 are stuck on both sides of the laminated slab, providing stable clamping for the laminated slab.

[0029] A position adjustment mechanism 2 is provided at the rear end of the top of the base 1. An installation base 3 is installed on the position adjustment mechanism 2. An electric telescopic cylinder 301 is fixed to the top of the installation base 3. The front end of the output shaft of the electric telescopic cylinder 301 is fixed with a movable table 302. A rebound instrument 303 is fixed to the top of the movable table 302. Specifically, a clamp 304 is connected to the movable table 302 by screws, and the rebound instrument 303 is fixed to the movable table 302 through the clamp 304. The movable table 302 is driven by the electric telescopic cylinder 301 to move forward, and the movable table 302 drives the rebound instrument 303 to move forward, so that the rebound instrument 303 abuts against the rear side of the laminated board to realize the rebound strength test. The position of the rebound instrument 303 is adjusted by the position adjustment mechanism 2, so that the rebound instrument 303 can test any point on the laminated board.

[0030] The position adjustment mechanism 2 includes two columns 201 symmetrically arranged left and right. The columns 201 are fixed to the top of the base 1. A vertical electric slide rail 202 is fixed to the inner side of the column 201. A horizontal electric slide rail 203 is installed between the two vertical electric slide rails 202. The vertical electric slide rail 202 is used to drive the horizontal electric slide rail 203 to move up and down. The installation base 3 is installed on the horizontal electric slide rail 203. The horizontal electric slide rail 203 is used to drive the installation base 3 to move left and right. Through the cooperation of the vertical electric slide rail 202 and the horizontal electric slide rail 203, the installation base 3 can move vertically and horizontally, so as to adjust the position of the rebound instrument 303.

[0031] Side plates 4 are fixed to both sides of the movable table 302. A cleaning mechanism 5 is provided on the side plates 4. The cleaning mechanism 5 includes a cross plate 501 slidably connected to the side of the side plate 4. An inclined slot 401 is formed on the side of the side plate 4. A pin shaft 6 is fixed to the rear end of the cross plate 501. The cross plate 501 is slidably connected to the side plate 4 through the cooperation of the inclined slot 401 and the pin shaft 6. A roller 502 is rotatably connected to the front end of the cross plate 501. A cleaning shaft 505 is rotatably connected between the two cross plates 501. As the movable table 302 moves forward, the side plate 4 and the cross plate 501 also move forward. When the roller 502 abuts against the laminated board, the cross plate 501 cannot continue to move forward. At this time, the side plate 4 continues to move forward, and the inclined slot 401 is used to squeeze the pin shaft 6, so that the pin shaft 6 drives the cross plate 501 to move vertically downward, and the cross plate 501 drives the cleaning shaft 505 to move downward, so that the cleaning shaft 505 cleans the particulate matter on the laminated board.

[0032] The cleaning mechanism 5 also includes a transmission assembly for causing the roller 502 to drive the cleaning shaft 505 to rotate. The transmission assembly includes a driving gear 503 and a driven gear 504 that mesh with each other. The driving gear 503 is fixedly connected to the roller 502, and the driven gear 504 is fixedly connected to the cleaning shaft 505. When the roller 502 rolls downward along the overlapping plate, the roller 502 drives the driving gear 503 to rotate, and the driving gear 503 drives the cleaning shaft 505 to rotate through the driven gear 504, and the rotation direction of the cleaning shaft 505 is opposite to the rotation direction of the roller 502, so that the cleaning shaft 505 cleans the particles downward.

[0033] The side plate 4 is provided with a rebound mechanism 7 for resetting the cross plate 501. A flat groove 402 is opened on the side of the side plate 4. The rebound mechanism 7 includes a slider 701 slidably connected in the flat groove 402. An elastic telescopic rod 702 is fixed on the slider 701. The telescopic end of the elastic telescopic rod 702 is fixedly connected to the cross plate 501. The elastic telescopic rod 702 is nested by a sleeve and a sliding shaft. There is a spring in the sleeve. When the cross plate 501 moves downward, the sliding shaft extends out of the sleeve and the spring is stretched. When the roller 502 moves backward and breaks away from contact with the overlapping plate, the spring drives the sliding shaft to contract, and the sliding shaft drives the cross plate 501 to move upward to achieve resetting.

[0034] Working principle: When in use, when the flipping frame 8 is in a horizontal state, hoist the laminated board into the flipping frame 8. At this time, the side of the laminated board with steel bars faces upward. The clamping oil cylinder 803 drives the first clamping plate 804 to move, so that the first clamping plate 804 and the second clamping plate 806 clamp and fix the laminated board. Then, the hydraulic cylinder 801 drives the flipping frame 8 to flip upward and drives the laminated board to flip. During the flipping process of the flipping frame 8, the reduction motor 805 drives the second clamping plate 806 to rotate, and the second clamping plate 806 drives the laminated board to rotate within the flipping frame 8. When the flipping frame 8 drives the laminated board to flip to a vertical state, the laminated board rotates 180° within the flipping frame 8. At this time, the side of the laminated board with steel bars faces forward, and the rear side of the laminated board is a plane. The vertical electric slide rail 202 drives the horizontal electric slide rail 203 to move up and down, and the horizontal electric slide rail 203 drives the mounting seat 3 to move left and right, adjusting the rebound instrument 303 to the test position. Then, the electric telescopic cylinder 301 drives the movable platform 302 to move forward. The movable platform 302 drives the rebound instrument 303 and the side plate 4 to move forward. First, the roller 502 comes into contact with the laminated board first. At this time, the cross plate 501 and the elastic telescopic rod 702 no longer move forward, enabling the side plate 4 to continue to move forward. The inclined groove 401 is used to squeeze the pin shaft 6, so that the pin shaft 6 drives the cross plate 501 to move downward, and the elastic telescopic rod 702 extends. The cross plate 501 drives the cleaning shaft 505 and the roller 502 to move downward, and the roller 502 rolls downward along the laminated board. The roller 502 drives the driving gear 503 to rotate, and the driving gear 503 drives the cleaning shaft 505 to rotate through the driven gear 504, so that the cleaning shaft 505 sweeps the particulate matter on the laminated board. When the plane where the cleaning shaft 505 is located moves below the rebound instrument 303, the rebound instrument 303 abuts against the laminated board and conducts a rebound strength test. After the test at this point is completed, the movable platform 302 is moved backward, and both the rebound instrument 303 and the cleaning shaft 505 are separated from the laminated board. The elastic telescopic rod 702 rebounds to pull the cross plate 501 upward and return to the initial position. Then, the test of the next point can be carried out.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A composite plate rebound strength testing device, comprising a base (1), a flip frame (8) being hingedly connected to the top front end of the base (1), hydraulic cylinders (801) being arranged on both sides of the base (1), the hydraulic cylinders (801) being hingedly connected to the base (1) and the flip frame (8), and a clamping assembly being arranged on the flip frame (8), characterized in that: A position adjustment mechanism (2) is provided at the rear end of the top of the base (1); a mounting seat (3) is mounted on the position adjustment mechanism (2); an electric telescopic cylinder (301) is fixed on the top of the mounting seat (3); a movable platform (302) is fixed at the front end of the output shaft of the electric telescopic cylinder (301); a rebound hammer (303) is fixed on the top of the movable platform (302); side panels (4) are fixed on both sides of the movable platform (302); a cleaning mechanism (5) is provided on the side panels (4); the cleaning mechanism (5) comprises a transverse plate (501) slidably connected to the side of the side panel (4); a roller (502) is rotatably connected to the front end of the transverse plate (501); a cleaning shaft (505) is rotatably connected between the two transverse plates (501); the cleaning mechanism (5) further comprises a transmission assembly for causing the roller (502) to drive the cleaning shaft (505) to rotate; and a rebound mechanism (7) for resetting the transverse plate (501) is provided on the side panels (4).

2. The composite plate rebound strength testing device according to claim 1, characterized in that: The side panels (4) are provided with oblique grooves (401), the rear end of the transverse panel (501) is fixed with a pin shaft (6), and the transverse panel (501) is slidably connected to the side panels (4) through the cooperation of the oblique grooves (401) and the pin shaft (6).

3. The composite plate rebound strength testing device according to claim 1, characterized in that: The transmission assembly comprises a driving gear (503) and a driven gear (504) that mesh with each other, the driving gear (503) being fixedly connected to the roller (502), and the driven gear (504) being fixedly connected to the cleaning shaft (505).

4. The composite plate rebound strength testing device according to claim 1, characterized in that: A flat groove (402) is provided on the side surface of the side plate (4), and the rebound mechanism (7) comprises a sliding block (701) slidably connected in the flat groove (402), an elastic telescopic rod (702) is fixed on the sliding block (701), and the telescopic end of the elastic telescopic rod (702) is fixedly connected to the horizontal plate (501).

5. The composite plate rebound strength testing device according to claim 1, characterized in that: The position adjustment mechanism (2) comprises two upright posts (201) arranged symmetrically on the left and right, the upright posts (201) being fixed to the top of the base (1), a vertical electric slide rail (202) being fixed to the inner side of the upright posts (201), a horizontal electric slide rail (203) being installed between the two vertical electric slide rails (202), and the mounting seat (3) being installed on the horizontal electric slide rail (203).

6. The composite plate rebound strength testing device according to claim 1, characterized in that: The clamping assembly comprises a turntable (802) rotatably connected to one side of the flip frame (8), the turntable (802) and the flip frame (8) being interference fit, a clamping cylinder (803) being fixed to one side of the turntable (802), a first clamping plate (804) being fixed to the output end of the clamping cylinder (803), the clamping assembly further comprises a reduction motor (805) fixedly connected to the other side of the flip frame (8), a second clamping plate (806) being fixed to the output end of the reduction motor (805), the first clamping plate (804) and the second clamping plate (806) being U-shaped, with the upper side being shorter than the lower side.

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