Vertical impact test bench

Abstract

The utility model discloses a vertical impact test bench. The vertical impact test bench comprises a support bench; the limiting side plate is arranged above the supporting table, a lifting limiting groove is formed in the middle of the limiting side plate, and an impact cross rod used for installing an impact object is arranged in the lifting limiting groove in a sliding mode; the beneficial effects of the utility model are that through the arrangement of the protection frame and the lifting cylinder, the lifting cylinder drives the protection frame to protect the experiment position of the supporting table, so that the safety of the experiment is increased; the impact cross rod is in contact with the inner wall of the lifting limiting groove so that stable sliding of the impact cross rod in the moving process can be guaranteed, lifting and free falling of the impact cross rod can be achieved in cooperation with telescopic reset of the lifting limiting block, the impact cross rod can move to the designated height under the action of the lifting lead screw, manufacturing is easy, implementation is easy, and the practicability is high. Use of small and medium-sized enterprises is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of vertical impact test, in particular to a vertical impact test bench. Background Art

[0002] The vertical impact test bench is a test instrument used to simulate the impact of a product in an actual environment and to assess the functional reliability and structural integrity of the product under an impact environment. The vertical impact test bench is widely used in industries such as electronics, automobiles, home appliances, and military industry. It is of great significance for the development of new products and ensuring the reliable and stable operation of products. The working principle of the vertical impact bench is that the lifting mechanism pushes the work surface to the set height, the brake device locks and releases the table, and the work surface hits the waveform generator under the action of gravity to generate an impact waveform. The existing vertical impact test bench has a complex structure and high manufacturing cost, and there is no corresponding protection mechanism during the experiment, which cannot effectively protect the safety of the test personnel. In addition, in the process of lifting the table, a cylinder is used, and its length is limited and affected by the length of the cylinder itself, resulting in a high height of the processing table; a steel wire rope is used to lift and then lock the table, which requires a corresponding brake device, which has a complex structure and high manufacturing cost. The fall during operation causes wear on the steel wire rope, reducing its service life. Utility Model Content

[0003] The utility model aims to provide a vertical impact test bench to solve the problems raised in the above background technology.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vertical impact test bench, comprising:

[0005] Support table;

[0006] A limiting side plate, the limiting side plate is placed above the support platform, a lifting limiting groove is provided in the middle of the limiting side plate, and an impact cross bar for installing an impact object is slidably provided inside the lifting limiting groove;

[0007] A vertical frame, the vertical frame is placed on the top of the support platform, a lifting screw is provided in the middle of the vertical frame, a lifting box is threadedly connected to the outer side of the lifting screw, and a lifting limit block for raising the height of the impact cross bar and an electromagnetic component for driving the lifting limit block to slide are provided inside the lifting box;

[0008] The protection frame is arranged on the outer side of the support platform in a liftable manner.

[0009] Preferably, a stabilizing bracket is fixedly connected to one side of the vertical frame, a lifting cylinder is fixedly connected to the middle of the stabilizing bracket, an output end of the lifting cylinder is fixedly connected to a protective frame, a lifting slide rod is fixedly connected to one side of the lifting cylinder, and the lifting slide rod is slidably connected to the stabilizing bracket.

[0010] Preferably, the lifting limit groove is fixedly connected with a lifting limit rod, and the lifting limit rod is slidably connected with the impact cross bar.

[0011] Preferably, one side of the impact cross bar is fixedly connected to a mounting platform.

[0012] Preferably, the lifting limit block is slidably connected to the lifting box, a sliding rod is fixedly connected to the inside of the lifting box, the lifting limit block is slidably connected to the sliding rod, and a return spring is sleeved on the outside of the sliding rod and located between the lifting limit block and the inner wall of the lifting box.

[0013] Preferably, the electromagnetic assembly includes electromagnet No. 1 and electromagnet No. 2, the electromagnet No. 1 and electromagnet No. 2 have the same magnetic poles when energized, the electromagnet No. 2 is fixedly connected to the lifting limit block, and the electromagnet No. 1 is fixedly connected to the lifting box.

[0014] Preferably, the end of the lifting limit block passing through the side of the lifting box is a sloped structure, the top of one end of the impact cross bar is an inclined surface matching the sloped structure, and the bottom of one end of the impact cross bar is a horizontal surface.

[0015] Preferably, a driving motor is fixedly connected to the top of the vertical frame, an output end of the driving motor is fixedly connected to the lifting screw rod, a limiting slide rod is fixedly connected to the middle of the lifting limit block, and the limiting slide rod is slidably connected to the lifting box.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows: by setting a protective frame and a lifting cylinder, the protective frame is driven by the lifting cylinder to protect the experimental position of the support table, thereby increasing the safety of the experiment; by setting a lifting limit groove and a lifting limit rod, the existence of the lifting limit rod can effectively prevent the impact cross bar from deviating from its predetermined trajectory, and the contact between the impact cross bar and the inner wall of the lifting limit groove helps to ensure the smooth sliding of the impact cross bar during movement, and the lifting and free falling of the impact cross bar can be achieved by cooperating with the telescopic reset of the lifting limit block, and the impact cross bar can be moved to a specified height under the action of the lifting screw rod. It is simple to make, easy to implement, and convenient for use by small and medium-sized enterprises. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2This is a structural schematic diagram of the lifting limit slot of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the utility model stable bracket;

[0020] Figure 4 This is a schematic diagram of the structure of the impact cross bar of the utility model;

[0021] Figure 5 It is a schematic diagram of the internal structure of the lifting box of the utility model.

[0022] In the figure: 1. Support table; 2. Vertical frame; 3. Limit side plate; 4. Lifting limit slot; 5. Lifting limit rod; 6. Impact cross bar; 7. Mounting table; 8. Limit slide bar; 9. Lifting box; 10. Lifting screw rod; 11. Driving motor; 12. Lifting limit block; 13. Sliding rod; 14. Reset spring; 15. No. 1 electromagnet; 16. No. 2 electromagnet; 17. Protective frame; 18. Lifting cylinder; 19. Lifting slide bar; 20. Stabilizing bracket. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0024] See also Figure 1-5 The utility model provides a technical solution: a vertical impact test bench, comprising: a support platform 1; a limiting side plate 3 is placed above the support platform 1, a lifting limiting groove 4 is opened in the middle of the limiting side plate 3, and an impact cross bar 6 for installing an impact object is slidably arranged inside the lifting limiting groove 4; a vertical frame 2 is welded to the top of the support platform 1, and the vertical frame 2 is connected to the limiting side plate 3 by bolts, and a lifting screw rod 10 is provided for the rotation of the vertical frame 2, and a lifting box 9 is threadedly connected to the outer side of the lifting screw rod 10, and a lifting limit block 12 for raising the height of the impact cross bar 6 and an electromagnetic component for driving the lifting limit block 12 to slide are arranged inside the lifting box 9; a protective frame 17 is arranged on the outer side of the support platform 1 in a liftable manner.

[0025] It should be noted that the utility model places the object to be tested on the top of the support platform 1, and then installs the impact object of the corresponding shape on the bottom of the mounting platform 7 as needed, and lifts the protective frame 17 by retracting the lifting cylinder 18, so that the processing position of the support platform 1 is protected by the protective frame 17 to prevent the object from hitting and splashing. Under the action of the driving motor 11 and the lifting screw 10, the impact cross bar 6 is lifted by the lifting box 9 and the lifting limit block 12. When the impact cross bar 6 is lifted to the specified height, the repulsive force generated by the electromagnetic component pushes the lifting limit block 12 to one side, so that the lifting limit block 12 is separated from the impact cross bar 6. Under the action of gravity, the impact object drives the impact cross bar 6 along the lifting limit rod 5 to impact the object to be tested.

[0026] like Figure 1 , 3 As shown, a stabilizing bracket 20 is installed on one side of the vertical frame 2 by bolts, a lifting cylinder 18 is fixedly connected to the middle of the stabilizing bracket 20, an output end of the lifting cylinder 18 is fixedly connected to the protective frame 17, a lifting slide rod 19 is fixedly connected to one side of the lifting cylinder 18, and the lifting slide rod 19 is slidably connected to the stabilizing bracket 20.

[0027] It should be noted that a stabilizing bracket 20 is installed on one side of the vertical frame 2 of the utility model, and a right-angled triangle structure is formed between the stabilizing bracket 20 and the vertical frame 2. By adding the stabilizing bracket 20 to the side of the vertical frame 2 and forming a right-angled triangle structure, the stability of the entire structure can be enhanced. The right-angled triangle structure has the characteristics of good stability, can effectively resist the action of external forces, provide more solid support, and can also reduce the shaking and vibration of the structure. Because the right-angled triangle structure is relatively stable, it can better disperse and balance the force applied to the structure, reduce the conduction of vibration, and provide more stable performance. The load is shared and evenly distributed between the stabilizing bracket 20 and the vertical frame 2. This structure can effectively increase the bearing capacity of the entire structure, improve safety and reliability, and the stability of the protective frame 17 during lifting can be improved by cooperating with the lifting cylinder 18 and the lifting slide rod 19, so that the protective frame 17 can be stably lifted and lowered to protect the test area of ​​the support platform 1.

[0028] like Figure 2 , 4 As shown, the lifting limit slot 4 is fixedly connected with a lifting limit rod 5, the lifting limit rod 5 is slidably connected with an impact cross bar 6, and a mounting platform 7 is fixedly connected to one side of the impact cross bar 6.

[0029] The support frame 7 is provided with a plurality of support members 7 on the upper and lower sides of the support frame 7, and a plurality of support members 7 are provided on the upper and lower sides of the support frame 7 to prevent the support member 7 from sliding out of the support frame 7 and causing the support member 7 to slide out of the support frame 7.

[0030] like Figure 4 , 5 As shown, the lifting limit block 12 is slidably connected to the lifting box 9, and a sliding rod 13 is fixedly connected inside the lifting box 9. The lifting limit block 12 is slidably connected to the sliding rod 13. A return spring 14 is sleeved on the outside of the sliding rod 13 and between the lifting limit block 12 and the inner wall of the lifting box 9. The electromagnetic assembly includes an electromagnet No. 15 and an electromagnet No. 2 16. The magnetic poles of the electromagnet No. 15 and the electromagnet No. 2 16 are the same when energized. The electromagnet No. 2 16 is fixedly connected to the lifting limit block 12, and the electromagnet No. 15 is fixedly connected to the lifting box 9. The end of the lifting limit block 12 that passes through the side of the lifting box 9 is a slope structure, the top of one end of the impact cross bar 6 is an inclined surface matched with the slope structure, and the bottom of one end of the impact cross bar 6 is a horizontal surface.

[0031] It should be noted that the driving motor 11 of the utility model drives the lifting screw 10 to rotate, and the lifting screw 10 drives the lifting box 9 to move up and down. When the lifting box 9 moves downward, when the inclined surface on one side of the lifting limit block 12 contacts the inclined surface at one end of the impact cross bar 6, under the extrusion of the force, the lifting limit block 12 is squeezed into the lifting box 9. At the same time, the lifting limit block 12 slides on the outside of the sliding rod 13 to squeeze the reset spring 14. When the lifting limit block 12 is staggered with the impact cross bar 6 and is located below the impact cross bar 6, under the reset action of the reset spring 14, the lifting limit block 12 is The positioning block 12 moves forward, so that the lifting limit block 12 is located below the impact cross bar 6, and the lifting screw 10 is driven to move by the driving motor 11. Under the action of the thread, the lifting box 9 lifts the impact cross bar 6 upward through the lifting limit block 12. When it reaches the specified height, the control switch controls the No. 1 electromagnet 15 and the No. 2 electromagnet 16 to be energized. Under the action of repulsive force, the lifting limit block 12 is pushed into the lifting box 9, so that the lifting limit block 12 is separated from the impact cross bar 6, and the impact cross bar 6 impacts downward under the action of gravity to complete the test experiment.

[0032] like Figure 1 , 2 As shown in , 3 and 5, a driving motor 11 is fixedly connected to the top of the vertical frame 2, an output end of the driving motor 11 is fixedly connected to a lifting screw rod 10, a middle part of the lifting limit block 12 is fixedly connected to a limiting slide bar 8, and the limiting slide bar 8 is slidably connected to the lifting box 9.

[0033] It should be noted that the lifting screw 10 and the limit slide bar 8 of the utility model are respectively located on both sides of the lifting box 9, wherein the limit slide bar 8 is slidably connected to the lifting box 9, and the lifting screw 10 is threadedly connected to the lifting box 9, so that the lifting box 9 can move freely to a specified height, and under the retraction of the lifting limit block 12, the impact cross bar 6 can fall down at different heights to achieve different implementations.

[0034] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0036] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated 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, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vertical impact test bench, characterized in that: include: Support platform (1); A limiting side plate (3), the limiting side plate (3) is placed above the support platform (1), a lifting limiting groove (4) is provided in the middle of the limiting side plate (3), and an impact cross bar (6) for mounting an impact object is slidably provided inside the lifting limiting groove (4); A vertical frame (2), the vertical frame (2) is placed on the top of the support platform (1), a lifting screw rod (10) is provided in the middle of the vertical frame (2), the outer side of the lifting screw rod (10) is threadedly connected to a lifting box (9), and the interior of the lifting box (9) is provided with a lifting limit block (12) for raising the height of the impact cross bar (6) and an electromagnetic component for driving the lifting limit block (12) to slide; A protection frame (17) is arranged on the outer side of the support platform (1) in a liftable manner.

2. A vertical impact test bench according to claim 1, characterized in that: A stabilizing bracket (20) is fixedly connected to one side of the vertical frame (2), a lifting cylinder (18) is fixedly connected to the middle of the stabilizing bracket (20), an output end of the lifting cylinder (18) is fixedly connected to a protective frame (17), a lifting slide bar (19) is fixedly connected to one side of the lifting cylinder (18), and the lifting slide bar (19) is slidably connected to the stabilizing bracket (20).

3. A vertical impact test bench according to claim 1, characterized in that: The lifting limit groove (4) is fixedly connected with a lifting limit rod (5), and the lifting limit rod (5) is slidably connected with the impact cross rod (6).

4. A vertical impact test bench according to claim 1, characterized in that: One side of the impact cross bar (6) is fixedly connected to a mounting platform (7).

5. A vertical impact test bench according to claim 1, characterized in that: The lifting limit block (12) is slidably connected to the lifting box (9), a sliding rod (13) is fixedly connected inside the lifting box (9), the lifting limit block (12) is slidably connected to the sliding rod (13), and a return spring (14) is sleeved on the outside of the sliding rod (13) and located between the lifting limit block (12) and the inner wall of the lifting box (9).

6. A vertical impact test bench according to claim 5, characterized in that: The electromagnetic assembly comprises a first electromagnet (15) and a second electromagnet (16); the first electromagnet (15) and the second electromagnet (16) have the same magnetic poles when energized; the second electromagnet (16) is fixedly connected to the lifting limit block (12); and the first electromagnet (15) is fixedly connected to the lifting box (9).

7. A vertical impact test bench according to claim 6, characterized in that: The end of the lifting limit block (12) that passes through the side of the lifting box (9) is a sloped structure, the top of one end of the impact cross bar (6) is an inclined surface that matches the sloped structure, and the bottom of one end of the impact cross bar (6) is a horizontal surface.

8. The vertical impact test bench according to claim 6, characterized in that: The top of the vertical frame (2) is fixedly connected to a driving motor (11), the output end of the driving motor (11) is fixedly connected to a lifting screw rod (10), the middle of the lifting limit block (12) is fixedly connected to a limiting slide bar (8), and the limiting slide bar (8) is slidably connected to the lifting box (9).

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