Vibration testing machine for detection

Abstract

The utility model relates to the field of simulated transportation vibration testing machines, in particular to a vibration testing machine for detection, which comprises a vibration table and a machine body for controlling the vibration table, a fixed guardrail and an adjusting guardrail are mounted at the upper end of the vibration table, baffles are mounted on the adjusting guardrail, and the four baffles are matched to form a storage area; a two-way screw is installed on the outer side of the adjusting guardrail, sliding blocks are arranged on the back faces of the baffles in a protruding mode, and the two-way screw is in forward threaded connection with the sliding blocks of one set of baffles and in reverse threaded connection with the sliding blocks of the other set of baffles. The front end and the rear end of the sliding block are provided with an abutting block and a spring respectively, the abutting block abuts against the front end of the sliding block, the two ends of the spring abut against the rear end of the sliding block and the end face of the installation block respectively, when the two-way screw is rotated, the abutting block and the sliding block synchronously move and keep abutting, and the spring and the abutting block are matched to clamp the sliding block. And the stability of the connection at the position during vibration is enhanced, so that the stability during a vibration test is ensured while the convenience of taking and placing goods is effectively ensured.

Description

Technical Field

[0001] This application relates to the field of simulated transportation vibration testing machines, and particularly to a vibration testing machine for detection. Background Art

[0002] In recent years, e-commerce in China has developed vigorously, and the demand for express delivery and logistics has increased. Packaging and transportation are an essential part of the commodity circulation. Whether the packaging can protect the products safely is directly related to the economic profits of merchants. During the packaging and transportation process, various transportation tools will inevitably experience various vibrations, rotations, and oscillations, which may cause damage to the products inside the packaging.

[0003] Therefore, when designing the packaging, a vibration testing machine will be used for detection. The vibration testing machine can simulate the vibration conditions that may be encountered during the actual transportation process to evaluate the durability and reliability of the packaging. On the vibration table of the vibration testing machine, a fixed guardrail and an adjustable guardrail that can slide along the fixed guardrail are provided. A fixed baffle is installed on the adjustable guardrail through an adjusting bolt. The four fixed baffles enclose the goods to be inspected, and then the vibration test operation can be carried out. In this type of equipment, it is rather troublesome to loosen and tighten the adjusting bolts every time the goods are taken and placed.

[0004] To solve the above problems, Chinese Patent No. CN210603801U with the publication number discloses a simulated transportation vibration testing machine that can be quickly positioned. The design of the adjusting bolt is cancelled, and a bidirectional screw is designed parallel to the adjustable guardrail. One end of the bidirectional screw is fixed to one side of the fixed guardrail, and the other end is suspended in the air and installed with a rotating handle. The four baffles can form two groups of baffles perpendicular to the bidirectional screw. Sliders are installed on the back of the baffles, and the sliders are used to realize the installation with the bidirectional screw. One group is threadedly connected to the positive thread of the bidirectional screw, and the other group is threadedly connected to the reverse thread of the bidirectional screw. When the bidirectional screw is rotated clockwise or counterclockwise, the two groups of baffles approach or move away from each other.

[0005] Although the above design improves the convenience of taking and placing goods, one end of the bidirectional screw is suspended, and the connection between the slider and the bidirectional screw is only a threaded fit. When the vibration testing machine vibrates, these may all cause the slider to displace, resulting in a change in the clamping distance, and even may cause the connection of the slider to break, affecting the normal operation of the machine. Summary of the Utility Model

[0006] In order to ensure the convenience of taking and placing goods while ensuring the stability during the vibration test, this application provides a vibration testing machine for detection.

[0007] A vibration testing machine for detection provided by this application adopts the following technical solutions:

[0008] A vibration testing machine for detection, comprising a vibration table and a machine body for controlling the vibration table. Fixed guardrails are symmetrically arranged on both sides of the tabletop of the vibration table. Adjusting guardrails are slidably connected to both sides of adjacent fixed guardrails. Two baffles are slidably spaced on each adjusting guardrail. The baffles on adjacent adjusting guardrails form two groups in total. All the baffles cooperate to form a placement area;

[0009] At both ends of the side of the adjusting guardrail away from the placement area, mounting blocks are convexly provided. A bidirectional screw is movably connected between the adjacent mounting blocks on each adjusting guardrail. A slider is convexly provided on the side of the baffle away from the placement area. A chute for the slider to slide is penetrated and opened on the side surface of the adjusting guardrail. The bidirectional screw is in positive threaded connection with the slider of one group of baffles and in reverse threaded connection with the slider of the other group of baffles;

[0010] At both ends of the slider, a tightening block and a spring sleeving the bidirectional screw are respectively provided. The tightening block is in the same-threaded connection with the adjacent slider. The tightening block abuts against the side surface of the slider. Both ends of the spring respectively abut against the mounting block and the slider.

[0011] By adopting the above technical solution, the bidirectional screw is fixed on one side of the adjusting guardrail by using the mounting block, which not only ensures the fixation of both ends of the bidirectional screw to avoid excessive amplitude of the bidirectional screw during the vibration of the instrument, but also enables the bidirectional screw to move synchronously with the adjusting guardrail; when the bidirectional screw is rotated to clamp or loosen the placement area, the tightening block and the slider move in the same direction, the spring contracts or elongates due to always having a tendency to recover, and the tightening block and the spring always keep abutting against the slider, thereby reducing the probability of the slider shifting during the vibration of the instrument; the above two cooperate to effectively ensure the stability during the vibration test while ensuring the convenience of taking and placing goods.

[0012] Optionally, a groove is opened along the length direction of the upper end of the fixed guardrail. A threaded hole is opened at the end of the adjusting guardrail. A locking member is threadedly connected at the threaded hole. The lower end of the locking member abuts against the bottom of the groove.

[0013] By adopting the above technical solution, after the adjusting guardrail is moved to the target position according to actual needs, the locking member is inserted into the threaded hole from top to bottom and abuts against the bottom of the groove, so as to fix the position of the end of the adjusting guardrail. The structure is simple, not easily damaged, and the solution is simple without operation difficulty.

[0014] Optionally, an embedding block for embedding the groove is convexly provided on the lower side of the end of the adjusting guardrail. The threaded hole is penetrated and opened at the upper end of the embedding block.

[0015] Optionally, a rotating handle is provided at the upper end of the locking member.

[0016] Optionally, a tension spring is connected between every two baffles in each group. A pull ring for hooking the tension spring is arranged on the outer side of the baffle. The tension spring drives the baffles at both ends of the tension spring to always have a tendency to approach each other.

[0017] By adopting the above technical solution, the adjacent two baffles at the same end form a partition using the adjustable guardrail. However, there is an empty area between each group of baffles. The tension spring is used to initially block the empty area, further enhancing the reliability of stabilizing the package in the placement area; the tension spring is detachable, and when detecting a smaller package, the tension spring can also be detached.

[0018] Optionally, a plurality of tension springs are arranged end to end along the length direction of the fixed guardrail.

[0019] By adopting the above technical solution, when adapting to a longer package, a plurality of tension springs can be arranged end to end between each group of baffles to form a partition.

[0020] In summary, the present application includes at least one of the following beneficial technical effects:

[0021] 1. In the present application, the bidirectional screw is fixed on one side of the adjustable guardrail using the mounting block, which not only ensures the fixation of both ends of the bidirectional screw to avoid excessive amplitude of the bidirectional screw when the instrument vibrates, but also enables the bidirectional screw to move synchronously with the adjustable guardrail; when the bidirectional screw is rotated to clamp or loosen the placement area, the abutting block and the slider move in the same direction, the spring contracts or elongates due to always having a tendency to recover, and the abutting block and the spring always keep abutting against the slider, thereby reducing the probability of the slider shifting when the instrument vibrates; the above two cooperate to effectively ensure the stability during the vibration test while ensuring the convenience of taking and placing goods;

[0022] 2. The present application simplifies the structure for the end of the adjustable guardrail to move along and be fixed to the fixed guardrail. Rotating the locking member to abut can fix the end of the adjustable guardrail. The structure is simple, not easily damaged, and the solution is simple without operation difficulty;

[0023] 3. The adjacent two baffles at the same end form a partition using the adjustable guardrail. However, there is an empty area between each group of baffles. The present application uses a detachable connection tension spring to initially block the empty area, further enhancing the reliability of stabilizing the package in the placement area. The number of tension springs can be selected as 0, 1, or multiple connected horizontally according to requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is the overall structural schematic diagram of the vibration testing machine for detection in the embodiment of the present application.

[0025] Figure 2 is Figure 1 the partial enlarged view of part A in

[0026] Description of the reference numerals: 1. Vibration table; 11. Positioning groove; 2. Machine body; 3. Fixed guardrail; 31. Groove; 4. Adjustable guardrail; 41. Embedded block; 42. Threaded hole; 43. Locking member; 431. Rotating handle; 44. Mounting block; 441. Screw hole; 45. Bi-directional screw; 451. Screw handle; 46. Sliding groove; 47. Tightening block; 48. Spring; 5. Baffle; 51. Slide block; 52. Pull ring; 53. Tension spring; 6. Placing area. Detailed implementation manners

[0027] The following further elaborates on this application in conjunction with the attached Figure 1-2 drawings.

[0028] A coordinate system XYZ is set up in this article, where the positive direction of the Z-axis represents upward, the negative direction of the Z-axis represents downward, the positive direction of the Y-axis represents the front, the negative direction of the Y-axis represents the rear, the positive direction of the X-axis represents the right, and the negative direction of the X-axis represents the left.

[0029] An embodiment of this application discloses a vibration testing machine for detection. Referring to Figure 1 , the vibration testing machine for detection includes a vibration table 1 and a machine body 2 for controlling the vibration table 1. The machine body 2 is electrically connected to the vibration table 1. The internal structures and vibration principles of the machine body 2 and the electric table are the same as those of the existing vibration testing machines, and will not be elaborated here.

[0030] Positioning grooves 11 are recessed on the front and rear sides of the table surface of the vibration table 1, and a fixed guardrail 3 is fixed by bolts in the positioning grooves 11, that is, the fixed guardrail 3 is placed along the left-right direction; both the left and right sides of adjacent fixed guardrails 3 are slidably connected with adjustable guardrails 4, that is, the adjustable guardrails 4 are placed along the front-rear direction. Two baffles 5 are slidably connected to each adjustable guardrail 4 at intervals. The baffles 5 on the same side of the front and rear two adjustable guardrails 4 cooperate to form a group, with a total of two groups of baffles 5. All the baffles 5 cooperate to form a placing area 6 for accommodating the packaging products to be tested. The placing area 6 is defined as the inner side of the baffle 5.

[0031] Referring to Figure 1 and Figure 2 , a groove 31 is opened at the upper end of the fixed guardrail 3 along the length direction of the fixed guardrail 3. An embedded block 41 that is embedded in the groove 31 protrudes from the lower side of the end of the adjustable guardrail 4. A threaded hole 42 is penetrated and opened at the upper end of the embedded block 41, and a locking member 43 is threadedly connected in the threaded hole 42.

[0032] A rotating handle 431 is integrally formed at the upper end of the locking member 43. When the locking member 43 is inserted into the threaded hole 42, the lower end of the locking member 43 abuts against the bottom of the groove 31, and at this time, the end position of the adjustable guardrail 4 is fixed.

[0033] At both ends of the side of the adjustable guardrail 4 away from the storage area 6, mounting blocks 44 are provided. The mounting blocks 44 can be integrally formed with the adjustable guardrail 4 or fixed to the adjustable guardrail 4 by bolts. In this application, the former example is shown. A screw hole 441 is formed on the side surface of the mounting block 44. The screw hole 441 is formed along the front-rear direction, and the multiple screw holes 441 on the same adjustable guardrail 4 are coaxial. Among the mounting blocks 44 on the side of each adjustable guardrail 4, in the front mounting block 44, the screw hole 441 penetrates through the mounting block 44; in the rear mounting block 44, the screw hole 441 only penetrates through the front side of the mounting block 44.

[0034] Between the front and rear adjacent mounting blocks 44 on each adjustable guardrail 4, a bidirectional screw 45 is movably connected through two mounting blocks 44. The rear end of the bidirectional screw 45 is installed in the rear mounting block 44, and the front end of the bidirectional screw 45 extends out of the front mounting block 44 and is installed with a screw handle 451. A sliding block 51 is integrally formed on one plate surface of the outer side of the baffle 5. A sliding groove 46 for the sliding block 51 to slide is formed through the side surface of the adjustable guardrail 4. The bidirectional screw 45 is in positive threaded connection with the sliding blocks 51 of one group of baffles 5 and in reverse threaded connection with the sliding blocks 51 of the other group of baffles 5.

[0035] At both ends of each sliding block 51, a pressing block 47 and a spring 48 sleeving the bidirectional screw 45 are respectively provided. The pressing block 47 is in the same-threaded connection with the adjacent sliding block 51, and the pressing block 47 abuts against the side surface of the sliding block 51. The two ends of the spring 48 respectively abut against the mounting block 44 and the sliding block 51.

[0036] A pull ring 52 is welded on the other plate surface of the outer side of the baffle 5. A tension spring 53 is connected between each group of two baffles 5. The two ends of the tension spring 53 are hooked on the pull rings 52 on both sides. The tension spring 53 always drives the two end baffles 5 to have a tendency to approach each other. According to different actual requirements, the tension spring 53 can be removed, only one can be provided on one side, or multiple can be arranged end to end along the left-right direction. A partition can be formed between the two baffles 5 in the front-rear direction by using the adjustable guardrail 4, and a partition can be formed between the two baffles 5 in the left-right direction by using the tension spring 53. The two cooperate to enhance the reliability of stabilizing the packaging box in the storage area 6, reduce the risk of the packaging box slipping out, and improve the safety of the vibration test.

[0037] The implementation principle of a vibration testing machine for detection in an embodiment of this application is as follows: First, loosen the locking member 43, slide the adjustable guardrail 4 to the target position and lock it. Then place the packaging box to be tested into the storage area 6, and then rotate the bidirectional screw 45 to make the two groups of baffles 5 approach each other. At this time, the pressing block 47 and the sliding block 51 move in the same direction, the spring 48 elongates, and the pressing block 47 and the spring 48 always keep pressing against the sliding block 51. The packaging box is restricted within a certain area, and the vibration test can be started.

[0038] After the vibration test is completed, rotate the bidirectional screw 45 in the reverse direction so that the two groups of baffles 5 move away from each other, then the storage area 6 expands, facilitating the taking of the packing box.

[0039] The above are all preferred embodiments of this application, and the protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A vibration testing machine for detection, characterized in that: It includes a vibration table (1) and a machine body (2) for controlling the vibration table (1). Fixed guardrails (3) are symmetrically arranged on both sides of the tabletop of the vibration table (1). Adjusting guardrails (4) are slidably connected to both sides of adjacent fixed guardrails (3). Two baffles (5) are slidably arranged at intervals on each adjusting guardrail (4). The baffles (5) on adjacent adjusting guardrails (4) form two groups in total. All the baffles (5) cooperate to form a storage area (6). At both ends of one side of the adjusting guardrail (4) away from the storage area (6), mounting blocks (44) are convexly provided. A bidirectional screw rod (45) is movably connected between adjacent mounting blocks (44) on each adjusting guardrail (4). A slider (51) is convexly provided on one side of the baffle (5) away from the storage area (6). A chute (46) for the slider (51) to slide is formed through the side surface of the adjusting guardrail (4). The bidirectional screw rod (45) is in positive threaded connection with the slider (51) of one group of baffles (5) and in reverse threaded connection with the slider (51) of the other group of baffles (5). Tightening blocks (47) and springs (48) sleeving the bidirectional screw rod (45) are respectively arranged at both ends of the slider (51). The tightening blocks (47) are in the same-threaded connection with the adjacent sliders (51). The tightening blocks (47) abut against the side surface of the sliders (51). Both ends of the spring (48) respectively abut against the mounting block (44) and the slider (51).

2. The vibration testing machine for detection according to claim 1, characterized in that: A groove (31) is formed along the length direction of the upper end of the fixed guardrail (3). A threaded hole (42) is formed at the end of the adjusting guardrail (4). A locking member (43) is in threaded connection at the threaded hole (42). The lower end of the locking member (43) abuts against the bottom of the groove (31).

3. The vibration testing machine for detection according to claim 2, characterized in that: An embedding block (41) embedded in the groove (31) is convexly provided on the lower side of the end of the adjusting guardrail (4). The threaded hole (42) runs through the upper end of the embedding block (41).

4. A vibration testing machine for detection according to claim 2, characterized in that: A rotating handle (431) is arranged at the upper end of the locking member (43).

5. A vibration testing machine for detection according to any one of claims 1-4, characterized in that: A tension spring (53) is connected between two baffles (5) in each group. A pull ring (52) for the tension spring (53) to hook is arranged on the outer side of the baffle (5). The tension spring (53) drives the baffles (5) at both ends of the tension spring (53) to always have a tendency to approach each other.

6. The vibration testing machine for detection according to claim 5, wherein: A plurality of tension springs (53) are arranged end to end along the length direction of the fixed guardrail (3).

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