Impact test device

Abstract

The utility model discloses an impact test device, which relates to the technical field of impact test devices and comprises a base, the top of the base is fixedly connected with a mounting frame, two corresponding lifting grooves are formed in the mounting frame, lifting blocks are slidably connected in the lifting grooves, threaded rods are rotatably connected in the lifting grooves, and the threaded rods are connected with the mounting frame. The threaded rod penetrates through the lifting block and is in threaded connection with the lifting block, one side of the lifting block is fixedly connected with a connecting block, a guide rod is inserted into the mounting frame, and the bottom of the guide rod is in threaded connection with a drop hammer; according to the technical scheme of the utility model, through the mutual cooperation of the lifting groove, the lifting block, the threaded rod, the transmission wheel, the toothed transmission belt, the first servo motor, the connecting block, the first sliding groove, the electric telescopic rod and the first sliding block, the test height of the drop hammer can be adjusted according to the test requirements, so that the data of a test piece under different impact forces can be detected. The detection efficiency is improved, and the working intensity of workers is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of impact test devices, and specifically relates to an impact test device. Background Technique

[0002] Composite material structures on airplanes may suffer various impact damages such as tool dropping during manufacturing and use. Due to the brittle mechanical characteristics of composite materials, composite material structures are very sensitive to impact damages. Especially low-velocity impact damages are likely to cause extensive internal damage to composite material structures.

[0003] According to the Chinese patent with the patent application number 202210294588.0, a lateral impact test device is disclosed, including a carrier table and a drop hammer located above the carrier table. It is characterized in that the lateral impact test device further includes a lateral fixture. The lateral fixture includes: a clamping table, including a base plate and two vertical plates. The base plate is detachably arranged on the carrier table; the two vertical plates are arranged opposite to each other along a first direction on the base plate, so that the base plate and the two vertical plates enclose an impact groove, and a composite material test piece can be vertically placed in the impact groove; at least one of the vertical plates is provided with a positioning hole; a fastener that can pass through the positioning hole on one of the vertical plates and press the composite material test piece against the other vertical plate; through the base plate and the two vertical plates on the clamping table enclosing the impact groove, the composite material test piece can be vertically placed in the impact groove. The fastener can press the composite material test piece against one vertical plate, thereby locking the position of the composite material test piece in the impact groove. The lateral fixture can stably clamp the composite material test piece, and the punch can accurately impact the lateral end face of the composite material test piece by hammering the punch with the drop hammer to complete the lateral impact test of the composite material test piece.

[0004] When conducting an impact test, it is necessary to test the bearing capacity of the test piece under the action of different impact forces. However, when using this lateral impact test device, it is necessary for the staff to manually adjust the heights of the drop hammer and the connecting rod, which increases the work intensity of the staff and reduces the applicability of this lateral impact test device. Therefore, we propose an impact test device. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides an impact test device, which solves the problems put forward in the above background technique.

[0006] To achieve the above object, the utility model is realized through the following technical solutions: An impact test device includes a base, on the top of which is fixedly connected with a mounting frame. Inside the mounting frame are provided two corresponding lifting grooves. Inside the lifting grooves are slidably connected with lifting blocks. Inside the lifting grooves are rotatably connected with threaded rods, which penetrate through the lifting blocks and are threadedly connected thereto. One side of the lifting block is fixedly connected with a connecting block. A guide rod is inserted into the mounting frame, and a drop hammer is threadedly connected to the bottom of the guide rod. Inside the connecting block is provided a first sliding groove, and inside the first sliding groove is slidably connected with a first sliding block. On the top of the base is fixedly connected with a placement table.

[0007] Preferably, an electric telescopic rod is fixedly installed inside the first sliding groove, and the output end of the electric telescopic rod is fixedly connected with the first sliding block. Through the mutual cooperation of the electric telescopic rod and the first sliding block, the first sliding block can be driven to slide inside the first sliding groove, the drop hammer can be clamped, and thus driven to lift, adjusting the falling height of the drop hammer, improving the applicability of the impact test device.

[0008] Preferably, one end of the threaded rod is fixedly connected with a transmission wheel. Between the two transmission wheels is provided a toothed transmission belt. Inside the base is fixedly installed a first servo motor, and the output end of the first servo motor is fixedly connected with one of the transmission wheels. Through the mutual cooperation of the transmission wheel, the toothed transmission belt and the first servo motor, the normal operation of the lifting mechanism can be ensured. During use, the first servo motor is started to drive one of the transmission wheels to rotate, then drive the toothed transmission belt to run, then drive the other transmission wheel to rotate, then drive the two threaded rods to rotate, then drive the lifting blocks to slide inside the lifting grooves, then drive the two connecting blocks to lift, and thus drive the clamped drop hammer to lift through the two first sliding blocks, adjusting the falling height of the drop hammer.

[0009] Preferably, two corresponding vertical plates are fixedly connected to the top of the placement table. On the top of the two vertical plates is fixedly connected with a guide plate. Inside the guide plate is provided an insertion groove, and a collision block is inserted into the insertion groove. Through the mutual cooperation of the vertical plates, the guide plate, the collision block and the insertion groove, the impact force when the drop hammer falls can be transmitted to the test piece, thus ensuring the accuracy of the detection.

[0010] Preferably, two corresponding second sliding grooves are formed inside the placing table. A bidirectional lead screw is rotatably connected inside the second sliding groove. Two corresponding second sliding blocks are slidably connected inside the second sliding groove. The bidirectional lead screw penetrates through the two second sliding blocks and is threadedly connected thereto. Both ends of the bidirectional lead screw extend to the outside of the base and are fixedly connected with knobs. A fixing block is fixedly connected to the top of the second sliding block. Through the mutual cooperation of the second sliding groove, the bidirectional lead screw, the second sliding block, the fixing block and the knob, the test piece can be clamped, thereby ensuring the stability of the test piece during detection.

[0011] Preferably, a plurality of fixing bolts are arranged inside the guide plate. The vertical plate and the guide plate are fixed by the fixing bolts.

[0012] Preferably, a positioning groove is formed inside the drop hammer. The two first sliding blocks are inserted into the positioning groove. A guide groove is formed inside the mounting frame. The guide rod is inserted into the guide groove.

[0013] The utility model provides an impact test device, which has the following beneficial effects:

[0014] 1. For this impact test device, through the mutual cooperation of the lifting groove, the lifting block, the threaded rod, the transmission wheel, the toothed transmission belt, the first servo motor, the connecting block, the first sliding groove, the electric telescopic rod and the first sliding block, the test height of the drop hammer can be adjusted according to the test requirements, so as to obtain the data of the test piece under different impact forces, improve the detection efficiency and reduce the working intensity of the staff.

[0015] 2. For this impact test device, through the mutual cooperation of the second sliding groove, the bidirectional lead screw, the second sliding block and the fixing block, it is convenient to clamp test pieces of different specifications and ensure the stability of the test piece during testing. Through the mutual cooperation of the vertical plate, the guide plate, the insertion groove and the impact block, the impact force when the drop hammer falls can be transmitted to the top of the test piece, improving the applicability of this impact test device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the utility model;

[0017] Figure 2 is a schematic structural diagram of the lifting mechanism of the utility model;

[0018] Figure 3 is a schematic structural diagram of the fixing mechanism of the utility model.

[0019] In the figure: 1, base; 2, mounting frame; 4, guide rod; 5, drop hammer; 6, placement table; 7, lifting groove; 8, lifting block; 9, threaded rod; 10, transmission wheel; 11, toothed transmission belt; 12, first servo motor; 13, connecting block; 14, first sliding groove; 15, electric telescopic rod; 16, first sliding block; 17, second sliding groove; 18, bidirectional lead screw; 19, second sliding block; 20, fixed block; 21, guide plate; 22, impact block; 23, insertion slot; 24, vertical plate. Detailed implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0021] Please refer to Figures 1 to 3 , the present invention provides a technical solution: an impact test device, including a base 1, a mounting frame 2 fixedly connected to the top of the base 1, two corresponding lifting grooves 7 are opened inside the mounting frame 2, a lifting block 8 is slidably connected inside the lifting groove 7, a threaded rod 9 is rotatably connected inside the lifting groove 7, the threaded rod 9 penetrates through the lifting block 8 and is threadedly connected thereto, a connecting block 13 is fixedly connected to one side of the lifting block 8, a guide rod 4 is inserted inside the mounting frame 2, a drop hammer 5 is threadedly connected to the bottom of the guide rod 4, a first sliding groove 14 is opened inside the connecting block 13, a first sliding block 16 is slidably connected inside the first sliding groove 14, and a placement table 6 is fixedly connected to the top of the base 1;

[0022] An electric telescopic rod 15 is fixedly installed inside the first sliding groove 14, and the output end of the electric telescopic rod 15 is fixedly connected to the first sliding block 16. Through the mutual cooperation of the electric telescopic rod 15 and the first sliding block 16, the first sliding block 16 can be driven to slide inside the first sliding groove 14, the drop hammer 5 can be clamped, and thus it can be driven to lift, adjusting the falling height of the drop hammer 5, improving the applicability of the impact test device;

[0023] One end of the threaded rod 9 is fixedly connected to a transmission wheel 10. A toothed transmission belt 11 is arranged between the two transmission wheels 10. A first servo motor 12 is fixedly installed inside the base 1. The output end of the first servo motor 12 is fixedly connected to one of the transmission wheels 10. Through the mutual cooperation of the transmission wheel 10, the toothed transmission belt 11 and the first servo motor 12, the normal operation of the lifting mechanism can be ensured. During use, the first servo motor 12 is started to drive one of the transmission wheels 10 to rotate, then drive the toothed transmission belt 11 to run, then drive the other transmission wheel 10 to rotate, then drive the two threaded rods 9 to rotate, then drive the lifting block 8 to slide inside the lifting groove 7, and then drive the two connecting blocks 13 to lift, so as to drive the clamped drop hammer 5 to lift through the two first sliding blocks 16 and adjust the falling height of the drop hammer 5;

[0024] Two corresponding vertical plates 24 are fixedly connected to the top of the placement table 6. A guide plate 21 is fixedly connected to the tops of the two vertical plates 24. A plug slot 23 is opened inside the guide plate 21. A collision block 22 is inserted into the plug slot 23. Through the mutual cooperation of the vertical plate 24, the guide plate 21, the collision block 22 and the plug slot 23, the impact force when the drop hammer 5 falls can be transmitted to the test piece, thus ensuring the accuracy of the detection;

[0025] Two corresponding second sliding grooves 17 are opened inside the placement table 6. A bidirectional lead screw 18 is rotatably connected inside the second sliding grooves 17. Two corresponding second sliding blocks 19 are slidably connected inside the second sliding grooves 17. The bidirectional lead screw 18 passes through the two second sliding blocks 19 and is threadedly connected thereto. Both ends of the bidirectional lead screw 18 extend to the outside of the base 1 and are fixedly connected to knobs. A fixed block 20 is fixedly connected to the top of the second sliding block 19. Through the mutual cooperation of the second sliding groove 17, the bidirectional lead screw 18, the second sliding block 19, the fixed block 20 and the knob, the test piece can be clamped, thus ensuring the stability of the test piece during detection;

[0026] A plurality of fixing bolts are arranged inside the guide plate 21. The vertical plate 24 and the guide plate 21 are fixed by the fixing bolts. A positioning groove is opened inside the drop hammer 5. The two first sliding blocks 16 are inserted into the positioning groove. A guide groove is opened inside the mounting frame 2. The guide rod 4 is inserted into the guide groove.

[0027] In summary, when using this impact test device, the staff first start two electric telescopic rods 15 to push two first sliding blocks 16 to move correspondingly, so that the first sliding blocks 16 are inserted into the positioning grooves. Then, according to the detection requirements, start the first servo motor 12 to drive one of the transmission wheels 10 to rotate, then drive the toothed transmission belt 11 to run, then drive the other transmission wheel 10 to rotate, then drive the two threaded rods 9 to rotate, then drive the lifting block 8 to slide inside the lifting groove 7, then drive the two connecting blocks 13 to lift, so as to drive the clamped drop hammer 5 to lift through the two first sliding blocks 16, adjust the falling height of the drop hammer 5. Then place the test piece between the two vertical plates 24, then rotate the knob to drive the bidirectional lead screw 18 to rotate and drive the two second sliding blocks 19 to slide correspondingly inside the second sliding groove 17, then drive the two groups of fixing blocks 20 to slide correspondingly, so as to clamp the test piece. Then fix the guide plate 21 on the top of the two vertical plates 24 through the fixing bolts. Then start the two electric telescopic rods 15 to retract, drive the two first sliding blocks 16 to slide into the first sliding groove 14, so as to pull out the first sliding blocks 16 from the positioning grooves, release the limit on the drop hammer 5, and make the drop hammer 5 fall naturally. Orient the drop hammer 5 through the guide rod 4 to prevent the drop hammer 5 from falling off to one side. Then make the drop hammer 5 fall onto the top of the impact block 22, make the impact block 22 slide into the insertion groove 23, and conduct the impact force to the top of the test piece for the test.

[0028] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. An impact test device, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a mounting frame (2), the interior of the mounting frame (2) is provided with two corresponding lifting grooves (7), the interior of the lifting groove (7) is slidably connected to a lifting block (8), the interior of the lifting groove (7) is rotatably connected to a threaded rod (9), the threaded rod (9) passes through the lifting block (8) and is threadedly connected thereto, one side of the lifting block (8) is fixedly connected to a connecting block (13), the interior of the mounting frame (2) is plugged with a guide rod (4), the bottom of the guide rod (4) is threadedly connected to a drop hammer (5), the interior of the connecting block (13) is provided with a first sliding groove (14), the interior of the first sliding groove (14) is slidably connected to a first sliding block (16), and the top of the base (1) is fixedly connected to a placing table (6).

2. An impact test device according to claim 1, characterized in that: An electric telescopic rod (15) is fixedly installed inside the first sliding groove (14), and the output end of the electric telescopic rod (15) is fixedly connected to the first sliding block (16).

3. An impact test device according to claim 1, characterized in that: One end of the threaded rod (9) is fixedly connected to a transmission wheel (10), a toothed transmission belt (11) is provided between the two transmission wheels (10), a first servo motor (12) is fixedly installed inside the base (1), and an output end of the first servo motor (12) is fixedly connected to one of the transmission wheels (10).

4. An impact test device according to claim 1, characterized in that: The top of the placement table (6) is fixedly connected to two corresponding vertical plates (24), the tops of the two vertical plates (24) are fixedly connected to a guide plate (21), a plug-in slot (23) is provided inside the guide plate (21), and a collision block (22) is plugged into the inside of the plug-in slot (23).

5. An impact test device according to claim 4, characterized in that: The placing table (6) is provided with two corresponding second sliding grooves (17) inside, the second sliding groove (17) is rotatably connected with a bidirectional screw rod (18) inside, the second sliding groove (17) is slidably connected with two corresponding second sliding blocks (19) inside, the bidirectional screw rod (18) passes through the two second sliding blocks (19) and is threadedly connected thereto, both ends of the bidirectional screw rod (18) extend to the outside of the base (1) and are fixedly connected with a knob, and the top of the second sliding block (19) is fixedly connected with a fixed block (20).

6. An impact test device according to claim 4, characterized in that: A plurality of fixing bolts are arranged inside the guide plate (21), and the vertical plate (24) and the guide plate (21) are fixed by the fixing bolts.

7. An impact test device according to claim 1, characterized in that: A positioning groove is provided inside the drop hammer (5), and the two first sliding blocks (16) are inserted into the positioning groove. A guide groove is provided inside the mounting frame (2), and the guide rod (4) is inserted into the guide groove.

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