Impact detection device

Abstract

The utility model discloses an impact detection device, which relates to the technical field of impact detection and comprises a bottom plate and a rectangular frame, side plates are fixedly connected to two sides of the upper end of the bottom plate, a top plate is fixedly connected to the tops of the two side plates together, fixing plates are connected to the front and the rear of the bottom plate, a workpiece is mounted at the center of the upper end of the bottom plate, and the rectangular frame is fixedly connected to the bottom plate. The positions, corresponding to the workpiece, of the two side plates and the two fixing plates are in threaded connection with screw rods, one ends of the screw rods make contact with the workpiece, the side wall of one side plate is fixedly connected with an air cylinder, the output end of the air cylinder is fixedly connected with a sliding block, the air cylinder is connected with external equipment, and the sliding block is fixedly connected with the sliding block. The problems that in the prior art, most objective tables can only adapt to workpieces of specific sizes, during testing, impact heavy objects fall off in a free falling mode, rebound occurs after the impact heavy objects impact the surfaces of the workpieces, and the workpieces are impacted again are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of impact detection, in particular to an impact detection device. Background Art

[0002] While the car is driving, the chassis will experience various road conditions and even be severely impacted in the event of an accident (such as hitting a stone or curb in a traffic accident). Therefore, while the chassis material must meet a certain strength requirement, the parts installed on the chassis must also meet a certain impact resistance requirement.

[0003] In order to simulate the deformation and performance of parts after impact, it is necessary to design a device that can simulate the impact of parts on the battery pack, but the existing impact detection device has the following shortcomings:

[0004] 1. Most loading platforms can only accommodate workpieces of specific sizes.

[0005] 2. During the test, the impact weight falls freely, rebounds after hitting the surface of the workpiece, and hits the surface of the workpiece again. If the same workpiece is impacted multiple times, it may cause deviation in the test data and affect the reliability and comparability of the results. Utility Model Content

[0006] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes an impact detection device, which solves the problem that most of the loading platforms in the prior art can only adapt to workpieces of specific sizes, and when testing, the impact heavy object falls in a free fall, rebounds after hitting the surface of the workpiece, and hits the workpiece again.

[0007] To achieve the above-mentioned purpose, the utility model proposes an impact detection device, including: a base plate, a rectangular frame, side plates are fixedly connected to both sides of the upper end of the base plate, the tops of the two side plates are commonly fixedly connected to a top plate, the front and rear sides of the base plate are connected to fixed plates, a workpiece is installed at the center of the upper end of the base plate, the two side plates and the two fixed plates are threadedly connected to the positions corresponding to the workpiece, one end of the screw contacts the workpiece, a cylinder is fixedly connected to the side wall of one of the side plates, a slider is fixedly connected to the output end of the cylinder, the cylinder is connected to an external device, and a photoelectric sensor is arranged at the lower end of one of the rectangular frames, and the photoelectric sensor is connected to the external device.

[0008] As a further solution of the utility model: a universal wheel is installed at the bottom end of the base plate, and the other end of the screw is fixedly connected with an adjustment handle.

[0009] As a further solution of the utility model: the two side panels are fixedly connected to the rectangular frame on one side close to the workpiece, an open space is provided between the two rectangular frames to form a guide opening, and an opening is provided on one side of the two rectangular frames and at the bottom.

[0010] As a further solution of the utility model: the sliding block is located at the opening.

[0011] As a further solution of the utility model: an electromagnet is fixedly provided at the lower end of the top plate, an impact weight is provided below the electromagnet, and a laser detector is installed at the bottom of the impact weight.

[0012] As a further solution of the utility model: guide hand wheels are fixedly provided on both sides of the upper end of the top plate, winding hand wheels are fixedly provided on one side of the two side plates, and connecting lines are connected to both sides of the upper end of the impact weight.

[0013] As a further solution of the utility model: the connecting wire passes through the top plate and is in sliding contact with the outer side wall of the guide hand wheel, and the connecting wire is wound around the inner side of the winding hand wheel.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. In order to adapt to workpieces of different sizes, place the workpiece at the center of the upper end of the base plate, turn the adjustment handle, and the adjustment handle drives the screw to move toward the workpiece to squeeze the workpiece so that the workpiece is fixed at the center of the upper end of the base plate.

[0016] 2. In order to ensure that the impact weight only hits the workpiece once, when the photoelectric sensor detects the impact weight passing for the second time, it means that the impact weight has hit the workpiece and bounced. The photoelectric sensor sends a signal to the external device, and the external device controls the cylinder to start. The output end of the cylinder drives the slider to slide at the opening, so that the slider seals the two openings. When the impact weight falls, it falls to the upper end of the slider, which can ensure that the impact weight only hits the workpiece once. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 A top view of the bottom plate of the utility model;

[0019] Figure 3 It is an enlarged view of part A of the utility model.

[0020] In the figure: 1. bottom plate; 2. universal wheel; 3. side plate; 4. rectangular frame; 5. guide port; 6. opening; 7. winding hand wheel; 8. connecting line; 9. guide hand wheel; 10. top plate; 11. electromagnet; 12. impact weight; 13. photoelectric sensor; 14. workpiece; 15. adjustment handle; 16. screw; 17. slider; 18. cylinder. DETAILED DESCRIPTION

[0021] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 1-3 As shown, an impact detection device includes: a base plate 1, side plates 3 are fixedly connected to both sides of the upper end of the base plate 1, the tops of the two side plates 3 are commonly fixedly connected to a top plate 10, a universal wheel 2 is installed at the bottom end of the base plate 1, and the front and rear sides of the base plate 1 are connected to fixed plates not shown in the figure.

[0023] The function of the universal wheel 2 is to increase the flexibility and maneuverability of the base plate 1. The universal wheel 2 can rotate and turn freely, so that the device can move and turn in different directions more easily to adapt to different usage scenarios and needs.

[0024] A workpiece 14 is installed at the center of the upper end of the base plate 1, and screws 16 are threadedly connected to the positions of the two side plates 3 and the two fixed plates corresponding to the workpiece 14, one end of the screw 16 contacts the workpiece 14, and the other end of the screw 16 is fixedly connected to the adjustment handle 15.

[0025] In order to adapt to workpieces 14 of different sizes, the workpiece 14 is placed at the center of the upper end of the base plate 1, and the adjusting handle 15 is turned. The adjusting handle 15 drives the screw 16 to move toward the workpiece 14 to squeeze the workpiece 14 so that the workpiece 14 is fixed at the center of the upper end of the base plate 1.

[0026] The two side panels 3 are fixedly connected to a rectangular frame 4 on one side close to the workpiece 14 , an open space is provided between the two rectangular frames 4 and a guide opening 5 is formed, and an opening 6 is provided on one side of the two rectangular frames 4 and at the bottom.

[0027] A cylinder 18 is fixedly connected to the side wall of one of the side panels 3, and a slider 17 is fixedly connected to the output end of the cylinder 18. The slider 17 is located at the opening 6 and can slide at the opening 6. The cylinder 18 is connected to an external device. When not being tested, the slider 17 is inside the rectangular frame 4.

[0028] A photoelectric sensor 13 is disposed at the lower end of one of the rectangular frames 4 , and the photoelectric sensor 13 is connected to an external device.

[0029] An electromagnet 11 is fixedly provided at the lower end of the top plate 10, and an impact weight 12 is provided below the electromagnet 11. The impact weight 12 is sucked under the electromagnet 11 when not working. A laser detector is installed at the bottom of the impact weight 12 as shown in the figure. The impact point can be accurately obtained by the laser detector before testing.

[0030] During the test, the electromagnet 11 is powered off, and the impact weight 12 falls along the guide opening 5 under the action of gravity and hits the workpiece 14. In order to ensure that the impact weight 12 only hits the workpiece 14 once, when the photoelectric sensor 13 detects the impact weight 12 passing for the second time, it means that the impact weight 12 has hit the workpiece 14 and bounced. The photoelectric sensor 13 sends a signal to the external device, and the external device controls the cylinder 18 to start. The output end of the cylinder 18 drives the slider 17 to slide at the opening 6, so that the slider 17 seals the two openings 6, and the impact weight 12 falls to the upper end of the slider 17 when it descends.

[0031] Guide hand wheels 9 are fixedly provided on both sides of the upper end of the top plate 10, and winding hand wheels 7 are fixedly provided on one side of the two side plates 3. Connecting wires 8 are connected to both sides of the upper end of the impact weight 12. The connecting wires 8 pass through the top plate 10 and are in sliding contact with the outer side walls of the guide hand wheels 9. The connecting wires 8 are wrapped around the inner side of the winding hand wheels 7.

[0032] During the descent of the impact weight 12 , the connecting wire 8 remains taut. After the impact is completed, the winding hand wheel 7 is rotated so that the connecting wire 8 is retracted into the inner side of the winding hand wheel 7 , and the connecting wire 8 drives the impact weight 12 to rise and be close to the electromagnet 11 .

[0033] Working principle:

[0034] The workpiece 14 is placed at the center of the upper end of the base plate 1 , and the adjusting handle 15 is turned. The adjusting handle 15 drives the screw 16 to move toward the workpiece 14 , and the workpiece 14 is squeezed so that the workpiece 14 is fixed at the center of the upper end of the base plate 1 .

[0035] During the test, the electromagnet 11 is powered off, and the impact weight 12 falls along the guide opening 5 under the action of gravity and hits the workpiece 14. In order to ensure that the impact weight 12 only hits the workpiece 14 once, when the photoelectric sensor 13 detects the impact weight 12 passing for the second time, it means that the impact weight 12 has hit the workpiece 14 and bounced. The photoelectric sensor 13 sends a signal to the external device, and the external device controls the cylinder 18 to start. The output end of the cylinder 18 drives the slider 17 to slide at the opening 6, so that the slider 17 seals the two openings 6, and the impact weight 12 falls to the upper end of the slider 17 when it descends.

[0036] In the description of the present utility model, it should be understood that the terms "upper", "lower", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are 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 direction, as well as a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present utility model. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. 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 an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. An impact detection device, characterized in that: include: A bottom plate (1) and a rectangular frame (4), wherein the upper sides of the bottom plate (1) are fixedly connected to side plates (3), the tops of the two side plates (3) are commonly fixedly connected to a top plate (10), the front and rear sides of the bottom plate (1) are both connected to fixed plates, a workpiece (14) is installed at the center of the upper end of the bottom plate (1), the two side plates (3) and the two fixed plates are both threadedly connected to screw rods (16) at positions corresponding to the workpiece (14), one end of the screw rod (16) contacts the workpiece (14), a side wall of one of the side plates (3) is fixedly connected to a cylinder (18), the output end of the cylinder (18) is fixedly connected to a slider (17), the cylinder (18) is connected to an external device, and a photoelectric sensor (13) is provided at the lower end of one of the rectangular frames (4), the photoelectric sensor (13) is connected to an external device.

2. The impact detection device according to claim 1, characterized in that: A universal wheel (2) is mounted on the bottom end of the base plate (1), and an adjustment handle (15) is fixedly connected to the other end of the screw rod (16).

3. The impact detection device according to claim 1, characterized in that: The two side plates (3) are fixedly connected to a rectangular frame (4) on one side close to the workpiece (14); an open space is provided between the two rectangular frames (4) to form a guide opening (5); and an opening (6) is provided on one side of the two rectangular frames (4) and at a position at the bottom end.

4. The impact detection device according to claim 3, characterized in that: The sliding block (17) is located at the opening (6).

5. The impact detection device according to claim 1, characterized in that: An electromagnet (11) is fixedly arranged at the lower end of the top plate (10), an impact weight (12) is arranged below the electromagnet (11), and a laser detector is installed at the bottom of the impact weight (12).

6. The impact detection device according to claim 5, characterized in that: Guide hand wheels (9) are fixedly provided on both sides of the upper end of the top plate (10), winding hand wheels (7) are fixedly provided on one side of the two side plates (3), and connecting lines (8) are connected to both sides of the upper end of the impact weight (12).

7. The impact detection device according to claim 6, characterized in that: The connecting wire (8) passes through the top plate (10) and is in sliding contact with the outer side wall of the guide hand wheel (9), and the connecting wire (8) is wound around the inner side of the winding hand wheel (7).

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