Test fixture for salt spray test chamber and salt spray test system

Abstract

The utility model discloses a kind of test tool and salt fog test system for salt fog test chamber, it is related to tool fixture field, the test tool for salt fog test chamber includes supporting member and at least one piece device, piece device includes base, rack and limit piece, base is set on supporting member, rack has the station for placing test piece on it.The rack rotation is set on base, for adjusting the inclination angle of test piece on station relative vertical face, limit piece is set between base and rack, to limit the rotation angle of rack.The test tool for salt fog test chamber provided by the utility model can flexibly adjust the inclination angle of rack according to the requirement of different test piece on test surface inclination angle, make test operation comply with specification, so as to obtain better test effect, it can be used in certain range for the test of different types of products, more general, easy to operate, convenient to use.

Description

Technical Field

[0001] This utility model belongs to the field of tooling and fixture technology, specifically a testing tooling and salt spray testing system for a salt spray test chamber. Background Technology

[0002] Salt spray test chambers (or salt spray corrosion test chambers) are mainly used to assess the salt spray corrosion resistance of products, materials and their protective layers. They are widely used in salt spray corrosion tests of parts, electronic components, protective layers of metal materials and industrial products.

[0003] In related technologies, the product to be tested (such as automotive brake pads) is placed on a fixture with a certain inclination, so that the test surface is tilted upwards, which facilitates the salt spray to evenly cover the test surface.

[0004] However, to achieve better test results, different types of products have different requirements for the angle of inclination. Typically, the angle between the test surface and the vertical plane is 15° to 25°. Most existing fixtures have fixed angles, requiring replacement for different products, resulting in poor versatility. Remanufacturing new fixtures increases costs, and relying on operator experience to adjust the product's tilt angle introduces an error rate, affecting test results. Therefore, it is necessary to improve the existing salt spray test fixtures. Utility Model Content

[0005] The purpose of this invention is to provide a testing fixture and salt spray testing system for a salt spray test chamber, so as to solve at least one aspect of the problems and defects mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: In the first aspect, this utility model provides a testing fixture for a salt spray test chamber, including a support and at least one placement device; The placement device includes a base, a placement rack, and a limiting component. The base is mounted on a support component, and the placement rack has a station for placing the test piece. The placement rack is rotatably mounted on the base to adjust the tilt angle of the test piece relative to the vertical plane at the workstation. A limiting component is placed between the base and the placement rack to limit the rotation angle of the placement rack.

[0007] As a further embodiment of this utility model: along the rotation axis parallel to the placement frame, the limiting member is movably connected to one of the base and the placement frame, and when the limiting member is driven to move and abut against the other of the base and the placement frame, the placement frame is locked onto the base.

[0008] As a further embodiment of this utility model: the limiting member is a limiting bolt, and the placement frame has a threaded hole in the direction parallel to the rotation axis, and the threaded hole matches the limiting bolt; An arc-shaped through groove is provided on the base near the threaded hole. The arc-shaped through groove extends around the rotation axis of the placement frame. The limiting bolt passes through the arc-shaped through groove and connects to the threaded hole. Loosen the limit bolts to rotate and adjust the placement rack; tighten the limit bolts to hold the placement rack in its current position.

[0009] As a further improvement of this utility model: multiple angle lines are provided around the arc-shaped through groove, and the side of the placement rack is provided with an indicator facing the angle line. When the indicator is aligned with one of the angle lines, it indicates the current tilt angle of the placement rack.

[0010] As a further embodiment of this utility model: the placement rack has a stop part for supporting the test piece, and the stop part is located on the side of the workstation facing the base.

[0011] As a further embodiment of this utility model, the placement device also includes a clamping component, which is disposed on the placement rack and located on the side of the workstation away from the base, for clamping the test piece with the stop part.

[0012] As a further embodiment of this utility model: the clamping assembly includes a pressure plate, a connecting rod and an elastic element. The pressure plate is located on the side of the workstation away from the base and is connected to the placement frame through the connecting rod, and moves relatively close to or away from the stop. The elastic elements connect the pressure plate and the placement frame respectively, so as to elastically press the pressure plate towards the stop.

[0013] As a further embodiment of this utility model: one of the support member and the base is provided with a socket, and the other is provided with a plug that matches the socket, and the plug is inserted into the socket.

[0014] As a further embodiment of this utility model: the upper end face of the support member is provided with insertion holes, and multiple insertion holes are provided at intervals along the first direction and / or the second direction, the first direction intersecting the second direction.

[0015] Secondly, this utility model also provides a salt spray testing system, including a salt spray test chamber and any of the testing fixtures for the salt spray test chamber provided in the first aspect.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: the testing fixture for the salt spray test chamber includes a support and at least one placement device. The placement device includes a base, a placement rack, and a limiting member. By setting the base on the support and setting a station for placing the test piece on the placement rack, and by rotating the placement rack on the base, the tilt angle of the test piece relative to the vertical plane at the station can be adjusted. The limiting member is set between the base and the placement rack to limit the rotation angle of the placement rack. The tilt angle of the placement rack can be flexibly adjusted according to the requirements of the tilt angle of the test surface on different test pieces, so that the test operation meets the specifications and thus obtains better test results. It can be used for testing different types of products within a certain range, has stronger versatility, and is simple to operate and convenient to use. Attached Figure Description

[0017] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the test fixture for a salt spray test chamber provided by this utility model; Figure 2 for Figure 1 A top-view structural diagram; Figure 3 for Figure 2 A top view of the structure of a single component placement device; Figure 4 for Figure 3 Sectional view along section AA Figure 5 This is a schematic diagram showing the usage status of the testing fixture for a salt spray test chamber provided by this utility model.

[0019] Figure label: 10. Test specimens; 100. Support component; 101. Insertion hole; 200. Placing device; 201. Station; 202. Arc-shaped through groove; 210. Base; 211. Plug; 220. Placement rack; 221. Stop; 230. Limiting component; 240. Pressing assembly; 241. Pressure plate; 242. Connecting rod; 243. Elastic component. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0021] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0023] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0026] Firstly, please refer to Figure 1-5 As shown, this utility model embodiment provides a testing fixture for a salt spray test chamber, including a support member 100 and at least one placement device 200.

[0027] The placement device 200 includes a base 210, a placement rack 220 and a limiting member 230. The base 210 is mounted on the support member 100, and the placement rack 220 has a station 201 for placing the test piece 10.

[0028] The placement rack 220 is rotatably mounted on the base 210 to adjust the tilt angle of the test piece 10 on the workstation 201 relative to the vertical plane. The limiting member 230 is disposed between the base 210 and the placement rack 220 to limit the rotation angle of the placement rack 220.

[0029] In this embodiment, the support member 100 is used to support the placement device 200. It can be a plate, frame or other structure. The support member 100 can be placed inside the salt spray test chamber.

[0030] The placement device 200 in this embodiment includes a base 210, a placement rack 220, and a limiting member 230. The base 210 supports the test specimen 10, the placement rack 220, and the limiting member 230, and can be a plate-shaped or shell-shaped structure. The base 210 can be connected to the support member 100 by means of insertion, abutment, screw connection, etc. It should be noted that the test specimen 10 is generally in the shape of a cuboid sheet or a thin plate structure, and one of its surfaces has a test surface.

[0031] The placement rack 220 in the above embodiment is used to support the test specimen 10, and it can be a plate-shaped, sheet-shaped, shell-shaped, or other structure. The placement rack 220 has a workstation 201, which is an area for placing the test specimen 10. The bottom of the placement rack 220 can be connected to the base 210 through a rotating structure such as a pivot or hinge, so that the bottom of the placement rack 220 can rotate around the horizontal axis to adjust the tilt angle of the test specimen 10 on the workstation 201 relative to the vertical plane.

[0032] In the above embodiment, the limiting member 230 is used to limit the rotation angle of the placement rack 220 relative to the base 210. It can be a telescopic member, a damping member, etc. The placement rack 220 is also connected to the base 210 through the limiting member 230. When the limiting member 230 is released, the placement rack 220 can rotate relative to the base 210 to adjust the tilt angle. When the limiting member 230 is locked, the placement rack 220 can be locked in the current position to limit the placement rack 220 from continuing to rotate.

[0033] Specifically, the tilt angle of the placement rack 220 is first adjusted according to the tilt angle required for the test of the specimen 10. Then, the placement rack 220 is locked by the limiting member 230. The specimen 10 is then placed on the station 201 of the placement rack 220. Finally, it is placed together with the support member 100 in the salt spray test chamber for testing.

[0034] Compared to fixtures with fixed angles, the testing fixture for salt spray test chambers provided in this embodiment of the invention can flexibly adjust the tilt angle of the placement frame 220 according to the requirements of the tilt angle of the test surface on different test pieces 10, so that the test operation meets the specifications, thereby obtaining better test results, ensuring more accurate product test results, and can be used for testing different types of products within a certain range. It has stronger versatility, is simple to operate, and is convenient to use.

[0035] In some embodiments, the limiting member 230 is movably connected to one of the base 210 and the placement rack 220 along a direction parallel to the rotation axis of the placement rack 220. When the limiting member 230 is driven to move and abut against the other of the base 210 and the placement rack 220, the placement rack 220 is locked onto the base 210.

[0036] In one example (not shown in the figure), the limiting member 230 can be a pin. The side of the placement rack 220 is provided with a pin hole, and the base 210 is provided with multiple positioning through holes near the pin hole. The multiple positioning through holes are distributed at intervals around the rotation axis of the placement rack 220. In this way, after the placement rack 220 is adjusted into position, the pin is inserted into the corresponding positioning through hole through the pin hole, thereby achieving the limiting and locking of the placement rack 220.

[0037] In another instance, such as Figure 3 , Figure 4 As shown, the limiting member 230 is a limiting bolt, and the placement bracket 220 has a threaded hole in the direction parallel to the rotation axis, which matches the limiting bolt.

[0038] An arc-shaped through groove 202 is provided on the base 210 near the threaded hole. The arc-shaped through groove 202 extends around the rotation axis of the placement frame 220. The limiting bolt passes through the arc-shaped through groove 202 and connects to the threaded hole.

[0039] Loosen the limit bolts to rotate and adjust the placement rack 220. Tighten the limit bolts to hold the placement rack 220 in its current position.

[0040] Specifically, the base 210 has limiting plates on both sides facing each other. An arc-shaped through groove 202 is opened on the limiting plate near the threaded hole. The rod of the limiting bolt can slide relative to each other in the arc-shaped through groove 202. When the placement rack 220 is rotated and adjusted to the position, the placement rack 220 can be locked in the current position by tightening the limiting bolt, so as to achieve stepless adjustment.

[0041] The limiting bolts can be tightened with butterfly-shaped screw heads for easy hand operation. Furthermore, limiting bolts can be installed on both sides of the base 210 to lock the placement rack 220 securely from both sides.

[0042] Of course, other types of limiting structures can also be used to lock the placement rack 220. Any structure that is easy to lock or unlock is acceptable. This embodiment does not impose too many restrictions.

[0043] Furthermore, in this embodiment, the periphery of the arc-shaped through groove 202 is also provided with multiple angle lines, and the side of the placement rack 220 is provided with an indicator facing the angle line. When the indicator is aligned with one of the angle lines, it indicates the current tilt angle of the placement rack 220.

[0044] In this way, as not shown in the figure, the angle lines can be evenly distributed from 90° to 60°. When the placement rack 220 is rotated so that the markings on its side (such as arrows) are aligned with the required angle, the placement rack 220 is then locked in the current position by the limiting member 230. This makes it easy to strictly control the tilt angle of the test piece 10 and can greatly reduce the error rate.

[0045] In some embodiments, the placement rack 220 has a stop portion 221 for supporting the test specimen 10, and the stop portion 221 is located on the side of the workstation 201 facing the base 210.

[0046] Specifically, such as Figure 4 , Figure 5 As shown, the lower end of the placement rack 220 has a stop 221, such as a side or a block. When the test specimen 10 rotates with the placement rack 220, the stop 221 can bear and limit the bottom edge of the test specimen 10, thereby maintaining the stability of the test specimen 10.

[0047] Furthermore, in this embodiment, the placement device 200 also includes a clamping assembly 240, which is disposed on the placement rack 220 and located on the side of the workstation 201 away from the base 210, for clamping the test piece 10 with the stop part 221.

[0048] Specifically, such as Figure 4 , Figure 5 As shown, when the test piece 10 is placed on the station 201, the stop part 221 supports the lower part of the test piece 10, and the upper part of the test piece 10 is pressed by the clamping assembly 240, thereby preventing the test piece 10 from falling over during the transportation process and ensuring the stability of the tooling.

[0049] For example, the clamping assembly 240 includes a pressure plate 241, a connecting rod 242 and an elastic element 243. The pressure plate 241 is located on the side of the workstation 201 away from the base 210 and is connected to the placement frame 220 via the connecting rod 242, and moves relatively close to or away from the stop 221.

[0050] The elastic element 243 is connected to the pressure plate 241 and the placement frame 220 respectively, so as to elastically press the pressure plate 241 toward the stop portion 221.

[0051] Specifically, such as Figure 4 , Figure 5As shown, the pressure plate 241 is located above the workstation 201 and is connected to the placement frame 220 via two connecting rods 242. The connecting rods 242 are slidably connected to the guide holes at the upper end of the placement frame 220, meaning that the pressure plate 241 can move vertically relative to the placement frame 220. The elastic element 243 can be a spring, which is sleeved on the connecting rods 242. The two ends of the elastic element 243 abut against the pressure plate 241 and the upper end of the placement frame 220, respectively, thereby applying a spring force to the pressure plate 241 in the direction of approaching the stop portion 221.

[0052] In this way, after the test piece 10 is placed on the workstation 201, the pressure plate 241 can quickly clamp the test piece 10, which is simple to operate and convenient to use.

[0053] In some embodiments, one of the support member 100 and the base 210 is provided with a socket 101, and the other is provided with a plug 211 that matches the socket 101, and the plug 211 is plugged into the socket 101.

[0054] Specifically, such as Figure 2 , Figure 4 As shown, the support member 100 is provided with a socket 101, and the base 210 is provided with a plug 211 that matches the socket 101. The plug 211 is plugged into the socket 101, which facilitates the replacement of different parts placement devices 200 according to different products.

[0055] Of course, the socket 101 can also be set on the base 210, which is not shown in the figure, and the plug 211 can also be set on the support 100, which can also enable the base 210 and the support 100 to be plugged and unplugged. In this embodiment, there are no restrictions.

[0056] Furthermore, in this embodiment, the upper end face of the support member 100 is provided with a socket 101, and multiple sockets 101 are provided at intervals along the first direction and / or the second direction, wherein the first direction is perpendicular to the second direction.

[0057] Specifically, the sockets 101 are spaced several times along a first direction and a second direction, such as along... Figure 2 As shown in the X-axis direction, the second direction is as along... Figure 2 As shown in the Y-axis direction, a plug 211 is provided on the bottom surface of the base 210 accordingly.

[0058] In this way, the placement device 200 can be fixed by selecting different positions of the insertion holes 101, which can meet the placement requirements of different specifications of test pieces 10 within a certain range, and has a wider range of applications. The specific number, spacing, size, position, etc. of the insertion holes 101 can be determined according to actual needs, and are not specifically limited in this embodiment.

[0059] Secondly, this utility model embodiment also provides a salt spray testing system, including a salt spray test chamber and a testing fixture for the salt spray test chamber according to any of the above embodiments.

[0060] Specifically, after all the test specimens 10 are placed on the test fixture for the salt spray test chamber, they are placed together in the salt spray test chamber for salt spray testing.

[0061] Therefore, the salt spray testing system provided by this utility model embodiment, by configuring a testing fixture for the salt spray test chamber, can flexibly adjust the tilt angle of the placement rack 220 according to the requirements of the tilt angle of the test surface on different test pieces 10, so that the test operation meets the specifications, thereby obtaining better test results, ensuring more accurate product test results, and can be used for testing different types of products within a certain range, with stronger versatility, simple operation and convenient use.

[0062] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A testing fixture for a salt spray test chamber, characterized in that, It includes a support (100) and at least one placement device (200). The placement device (200) includes a base (210), a placement rack (220) and a limiting member (230). The base (210) is disposed on the support member (100), and the placement rack (220) has a station (201) for placing the test piece (10). The placement rack (220) is rotatably mounted on the base (210) to adjust the tilt angle of the test piece (10) on the work station (201) relative to the vertical plane. The limiting member (230) is disposed between the base (210) and the placement rack (220) to limit the rotation angle of the placement rack (220). The placement rack (220) has a stop (221) for supporting the test piece (10), and the stop (221) is located on the side of the workstation (201) facing the base (210); The placement device (200) further includes a clamping assembly (240), which is disposed on the placement rack (220) and located on the station (201) on the side opposite to the base (210) for clamping the test piece (10) with the stop (221). The clamping assembly (240) includes a pressure plate (241), a connecting rod (242), and an elastic element (243). The pressure plate (241) is located on the side of the workstation (201) away from the base (210) and is connected to the placement frame (220) through the connecting rod (242), and moves relatively close to or away from the stop (221). The elastic element (243) is connected to the pressure plate (241) and the placement frame (220) respectively, so as to elastically press the pressure plate (241) toward the stop (221).

2. The testing fixture for a salt spray test chamber according to claim 1, characterized in that, Along a direction parallel to the rotation axis of the placement rack (220), the limiting member (230) is movably connected to one of the base (210) and the placement rack (220). When the limiting member (230) is driven to move and abut against the other of the base (210) and the placement rack (220), the placement rack (220) is locked onto the base (210).

3. The testing fixture for a salt spray test chamber according to claim 2, characterized in that, The limiting member (230) is a limiting bolt, and the placement frame (220) has a threaded hole in a direction parallel to the rotation axis, and the threaded hole matches the limiting bolt; An arc-shaped through groove (202) is provided on the base (210) near the threaded hole. The arc-shaped through groove (202) extends around the rotation axis of the placement frame (220). The limiting bolt passes through the arc-shaped through groove (202) and connects to the threaded hole. Loosen the limiting bolt to rotate and adjust the placement rack (220); tighten the limiting bolt to restrict the placement rack (220) to the current position.

4. The testing fixture for a salt spray test chamber according to claim 3, characterized in that, The periphery of the arc-shaped through groove (202) is also provided with multiple angle lines, and the side of the placement rack (220) is provided with an indicator facing the angle lines. When the indicator is aligned with one of the angle lines, it indicates the current tilt angle of the placement rack (220).

5. The testing fixture for a salt spray test chamber according to any one of claims 1 to 4, characterized in that, One of the support member (100) and the base (210) is provided with a socket (101), and the other is provided with a plug (211) that matches the socket (101), and the plug (211) is inserted into the socket (101).

6. The testing fixture for a salt spray test chamber according to claim 5, characterized in that, The upper end face of the support member (100) is provided with the insertion hole (101), and the insertion hole (101) is provided in multiple intervals along the first direction and / or the second direction, the first direction intersecting the second direction.

7. A salt spray testing system, characterized in that, Includes a salt spray test chamber and the test fixture for the salt spray test chamber as described in any one of claims 1 to 6.

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