A thermal cycle impact testing machine

Abstract

The utility model provides a kind of thermal cycle impact testing machine, including testing machine body, still including air intake mechanism, two wind boxes, respectively corresponding setting in the side surface of high temperature area and low temperature area, the side surface of wind box is provided with the net board facing high temperature area and low temperature area;Flexible pipe, one end of the flexible pipe is communicated with wind box, another end of the flexible pipe is used for being communicated with external air supply system;Sliding mechanism, it is set in the shell of testing machine body, the bottom end of wind box is slidably connected with sliding mechanism;The utility model relates to impact testing machine technical field, wind box is controlled reciprocating movement along sliding mechanism by drive assembly, can be according to workpiece shape and position dynamic adjustment air supply point, avoid the airflow dead angle caused by the shielding of workpiece shape, so that workpiece surface temperature distribution is more uniform.

Description

Technical Field

[0001] This utility model relates to the field of impact testing machine technology, and in particular to a thermal cycling impact testing machine. Background Technology

[0002] Thermal cycling shock testing machines are widely used in reliability testing of electronic components, materials, automotive parts and other products. By simulating an environment of alternating high and low temperatures, they detect the performance changes of products under extreme temperature conditions. Existing thermal cycling shock testing machines typically include a high temperature zone and a low temperature zone, and use a basket to move the sample between the two zones to achieve rapid temperature changes.

[0003] However, these devices have certain limitations in their air supply structure: the air outlets are usually fixed and cannot be flexibly adjusted according to the shape and position of the sample. Especially when testing L-shaped or other irregularly shaped workpieces, fixed air outlets can easily cause airflow obstruction or uneven distribution, resulting in uneven heating or cooling of the workpiece surface. Utility Model Content

[0004] The purpose of this invention is to provide a thermal cycling impact testing machine that makes the surface temperature distribution of irregular workpieces more uniform.

[0005] This utility model provides a thermal cycling shock testing machine, including a testing machine body, the interior of which is respectively provided with a high temperature zone and a low temperature zone, and a basket that can move between the high temperature zone and the low temperature zone, and also includes an air inlet mechanism, the air inlet mechanism comprising:

[0006] Two air boxes are respectively disposed on the sides of the high-temperature zone and the low-temperature zone, and the sides of the air boxes are provided with mesh panels facing the high-temperature zone and the low-temperature zone;

[0007] A telescopic pipe, one end of which is connected to the air box, and the other end of which is used to connect to an external air supply system;

[0008] A sliding mechanism is disposed inside the housing of the testing machine body, and the bottom end of the air box is slidably connected to the sliding mechanism;

[0009] A drive assembly, located at the top of the bellows, is used to drive the bellows to reciprocate along the sliding mechanism.

[0010] Preferably, the sliding mechanism includes a slide rail and a slide base. The slide rail is fixed inside the housing of the testing machine body, the slide base slides in cooperation with the slide rail, and the top end of the slide base is fixedly connected to the bottom end of the air box.

[0011] Preferably, the driving component is a cylinder, the cylinder body is connected to the outer shell of the testing machine body, and the output end of the cylinder is connected to the top of the bellows.

[0012] Preferably, a flow guiding component is provided on the outer side of the mesh plate.

[0013] Preferably, the flow guiding assembly includes a plurality of flow guiding plates, which are evenly distributed along the outer wall of the mesh plate.

[0014] Preferably, the guide vane is connected to the air box via an angle adjustment mechanism.

[0015] Preferably, the angle adjustment mechanism includes a connecting rod and a retaining ring;

[0016] The connecting rod is fixed inside the guide plate, and its two ends are respectively hinged to the fixing ring. The outer circumference of the fixing ring is fixedly connected to the wind box. The connecting rod and the fixing ring are locked together by locking bolts.

[0017] Preferably, the side of the guide plate closest to the air box is machined into a semi-circular shape to fit snugly against the outer shell of the air box.

[0018] The thermal cycling shock testing machine provided by this utility model has the following beneficial effects:

[0019] By controlling the bellows to reciprocate along the sliding mechanism through the drive component, the air supply point can be dynamically adjusted according to the shape and position of the workpiece, avoiding dead airflow caused by the shape of the workpiece, and making the surface temperature distribution of the workpiece more uniform.

[0020] The air guide plate in the air guide assembly can be flexibly set to deflect the angle through the angle adjustment mechanism, so that the airflow can be accurately guided to the specific surface of the workpiece. It is especially suitable for the testing needs of workpieces with complex shapes such as L-shaped and curved surfaces. The coordinated work of the air box, sliding mechanism and drive assembly, combined with the uniform distribution and semi-circular fitting design of the air guide plate, forms a concentrated and uniform air curtain, which improves the heat exchange efficiency. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2This is a partial sectional view of the main body of the testing machine in this utility model;

[0024] Figure 3 This is a schematic diagram of the connection structure between the air box and the flow guide assembly in this utility model;

[0025] Figure 4 This is a schematic diagram of the sliding mechanism and the bellows in this utility model;

[0026] Figure 5 This is a schematic diagram of the structure of the guide plate, connecting rod, fixing ring, and locking bolt in this utility model;

[0027] Figure 6 This is a schematic diagram of the closed state of the test machine body in this utility model.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1-Testing machine body, 101-High temperature zone, 102-Low temperature zone, 2-Suspended basket, 3-Blowbox, 301-Mesh plate, 4-Telescopic tube, 5-Sliding mechanism, 501-Slide rail, 502-Slide seat, 6-Drive assembly, 601-Cylinder, 602-Cylinder body, 603-Output end, 7-Flow guide assembly, 701-Flow guide plate, 702-Connecting rod, 703-Fixing ring, 704-Locking bolt. Detailed Implementation

[0030] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0031] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0032] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] In this embodiment, as Figure 1 and Figure 2 As shown, a thermal cycling shock testing machine includes a testing machine body 1, the interior of which is respectively provided with a high-temperature zone 101 and a low-temperature zone 102, and a basket 2 that can move between the high-temperature zone 101 and the low-temperature zone 102. It also includes an air inlet mechanism, which includes:

[0034] Two air boxes 3 are respectively located on the sides of the high-temperature zone 101 and the low-temperature zone 102. The sides of the air boxes 3 are provided with mesh plates 301 facing the high-temperature zone 101 and the low-temperature zone 102. A telescopic pipe 4 is connected at one end to the air box 3 and at the other end to the external air supply system. A sliding mechanism 5 is located inside the housing of the test machine body 1. The bottom end of the air box 3 is slidably connected to the sliding mechanism 5. A drive assembly 6 is located at the top of the air box 3 and is used to drive the air box 3 to move back and forth along the sliding mechanism 5.

[0035] Therefore, by driving the wind box 3 to move through the drive component 6, the position of the air outlet (i.e., the mesh plate 301) relative to the specimen in the high and low temperature zones can be changed, thereby achieving flexible control of the airflow coverage area and solving the problem of poor temperature uniformity of the workpiece heating surface caused by the traditional fixed air supply method.

[0036] In some embodiments, such as Figure 3 As shown, the sliding mechanism 5 includes a slide rail 501 and a slide block 502. The slide rail 501 is fixed inside the housing of the test machine body 1. The slide block 502 is slidably engaged with the slide rail 501. The top end of the slide block 502 is fixedly connected to the bottom end of the air box 3.

[0037] Specifically, the slide rail 501 is a linear guide rail, which makes the movement of the bellows 3 more stable. The slide block 502, as a sliding component, evenly transmits the weight and motion load of the bellows 3 to the slide rail 501, which enhances the stability of the bellows 3 during reciprocating movement and prevents the stability of the airflow from being affected by shaking.

[0038] In some embodiments, such as Figure 4 As shown, the drive component 6 is a cylinder 601. The cylinder body 602 of the cylinder 601 is connected to the outer shell of the test machine body 1, and the output end 603 of the cylinder 601 is connected to the top of the bellows 3.

[0039] Specifically, cylinder 601, as a power source, has the advantages of fast response and simple control. By controlling the extension and retraction of cylinder 601, the movement stroke and position of the bellows 3 can be controlled, and the bellows 3 can be quickly positioned.

[0040] In other embodiments, the drive assembly 6 may also be an electric actuator, a hydraulic cylinder, or a lead screw and slider mechanism, etc.

[0041] In some embodiments, such as Figure 5 As shown, a flow guiding component 7 is provided on the outer side of the mesh plate 301;

[0042] Specifically, the airflow guide component 7 is used to guide and shape the airflow blown out from the mesh plate 301;

[0043] It should be noted that the airflow guide component 7 enables the device to adjust not only the position of the airflow but also the direction of the airflow, further enhancing its ability to meet the testing requirements of complex-shaped specimens.

[0044] In some embodiments, such as Figure 3 As shown, the flow guiding component 7 includes multiple flow guiding plates 701, which are evenly distributed along the outer wall of the mesh plate 301;

[0045] Specifically, the combined action of multiple deflectors 701 can constrain and guide the originally vertically diffused airflow to a specific direction, forming a more concentrated and uniform air curtain that directly acts on a specific surface of the specimen, thereby improving heat exchange efficiency.

[0046] The uniform distribution of the deflector 701 ensures that the airflow direction remains consistent across the entire air outlet surface after the angle is adjusted, thus avoiding localized flow field chaos.

[0047] In some embodiments, such as Figure 5 As shown, the deflector plate 701 is connected to the air box 3 through an angle adjustment mechanism.

[0048] Specifically, the angle adjustment mechanism allows operators to manually set the deflection angle of the guide vane 701 according to the actual shape of the workpiece and the testing requirements, thereby optimizing the airflow direction.

[0049] In some embodiments, such as Figure 5 As shown, the angle adjustment mechanism includes a connecting rod 702 and a fixed ring 703; the connecting rod 702 is fixed inside the guide plate 701, and both ends of the connecting rod 702 are hinged to the fixed ring 703 respectively, and the outer periphery of the fixed ring 703 is fixedly connected to the wind box 3; the connecting rod 702 and the fixed ring 703 are locked and fixed by locking bolts 704.

[0050] Specifically, during adjustment, loosen the locking bolt 704 to rotate the connecting rod 702. The connecting rod 702 will drive the guide plate 701 fixed thereto to rotate synchronously to the required angle. Then tighten the locking bolt 704 to fix the guide plate 701 in that position.

[0051] The structure is simple and reliable, has low manufacturing cost, and is easy to adjust.

[0052] In some embodiments, such as Figure 3 and Figure 5 As shown, the side of the guide plate 701 closest to the air box 3 is machined into a semi-circular shape to fit against the outer shell of the air box 3;

[0053] It should be noted that the semi-circular design of the deflector 701 helps to increase the sealing between the deflector 701 and the outer shell of the air box 3, reduce airflow leakage from the gaps, and allow as much airflow as possible to be blown out from the channel formed by the deflector 701.

[0054] This close-fitting design also makes the overall structure more aesthetically pleasing and neat.

[0055] The working principle of this application is illustrated below with a preferred embodiment:

[0056] The workpiece to be tested is placed in the basket 2, which is located in the high temperature zone 101 for heating and testing. The testing machine body 1 controls the basket 2 to enter the low temperature zone 102 for low temperature testing.

[0057] When hot air (or cold air) is introduced into the main body 1 of the testing machine, the external air supply system introduces the hot air (or cold air) into the air box 3 through the telescopic pipe 4. The hot air (or cold air) is blown into the corresponding high temperature zone 101 or low temperature zone 102 through the mesh plate 301 to test the workpiece under high temperature (or low temperature) environment.

[0058] When performing temperature detection on irregularly shaped workpieces, cylinder 601 is activated. The output end 603 of cylinder 601 drives the bellows 3 to move. The bellows 3 drives the slide block 502 to move along the outer wall of the slide rail 501. The displacement of the bellows 3 changes the air supply position. Depending on the shape of the workpiece, the angle between the guide plate 701 and the mesh plate 301 can be adjusted in advance. The connecting rod 702 is rotated in the fixed ring 703. The connecting rod 702 drives the guide plate 701 to shift. Then, the locking bolt 704 is used to fix the position of the connecting rod 702 in the fixed ring 703. Then, the gas delivered from the mesh plate 301 is blown along the guide plate 701 at different angles onto the workpiece in the high temperature zone 101 or the low temperature zone 102.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A thermal cycling impact testing machine, comprising a testing machine body (1), wherein a high-temperature zone (101) and a low-temperature zone (102) are respectively provided inside the testing machine body (1), and a basket (2) movable between the high-temperature zone (101) and the low-temperature zone (102) is provided, characterized in that, It also includes an air intake mechanism, which includes: Two bellows (3) are respectively disposed on the sides of the high temperature zone (101) and the low temperature zone (102), and the sides of the bellows (3) are provided with mesh plates (301) facing the high temperature zone (101) and the low temperature zone (102); Telescopic pipe (4), one end of which is connected to the air box (3), and the other end of which is used to connect to the external air supply system; The sliding mechanism (5) is disposed inside the housing of the test machine body (1), and the bottom end of the air box (3) is slidably connected to the sliding mechanism (5); A drive assembly (6) is disposed at the top of the bellows (3) for driving the bellows (3) to reciprocate along the sliding mechanism (5).

2. The thermal cycling shock testing machine according to claim 1, characterized in that, The sliding mechanism (5) includes a slide rail (501) and a slide block (502). The slide rail (501) is fixed inside the housing of the test machine body (1). The slide block (502) is slidably engaged with the slide rail (501). The top end of the slide block (502) is fixedly connected to the bottom end of the bellows (3).

3. The thermal cycling shock testing machine according to claim 1, characterized in that, The drive component (6) is a cylinder (601), the cylinder body (602) of the cylinder (601) is connected to the outer shell of the test machine body (1), and the output end (603) of the cylinder (601) is connected to the top of the bellows (3).

4. The thermal cycling shock testing machine according to any one of claims 1 to 3, characterized in that, A flow guiding component (7) is provided on the outer side of the mesh plate (301).

5. The thermal cycling shock testing machine according to claim 4, characterized in that, The flow guiding component (7) includes a plurality of flow guiding plates (701), which are evenly distributed along the outer wall of the mesh plate (301).

6. The thermal cycling impact testing machine according to claim 5, characterized in that, The guide plate (701) is connected to the air box (3) through an angle adjustment mechanism.

7. The thermal cycling impact testing machine according to claim 6, characterized in that, The angle adjustment mechanism includes a connecting rod (702) and a retaining ring (703); The connecting rod (702) is fixed inside the guide plate (701). The two ends of the connecting rod (702) are respectively hinged to the fixing ring (703). The outer periphery of the fixing ring (703) is fixedly connected to the wind box (3). The connecting rod (702) and the fixing ring (703) are locked and fixed by locking bolts (704).

8. The thermal cycling shock testing machine according to claim 7, characterized in that, The guide plate (701) is machined into a semi-circular shape on the side near the air box (3) so as to fit against the outer shell of the air box (3).

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