Frame for test fixture

Abstract

The utility model discloses a frame for a test fixture, which comprises an upper frame assembly and a lower frame assembly, the upper frame assembly comprises an upper frame internally provided with a closed mounting space, and the top wall and the side wall of the upper frame are hinged so that the upper frame can be opened from the top; the lower frame assembly comprises a lower frame internally provided with a closed installation space, and the top wall and the side wall of the lower frame are hinged so that the lower frame can be opened from the top. Wherein a gap is formed between the upper frame and the lower frame, and the upper frame and the lower frame are connected through a nitrogen spring. According to the application, the frame with the three-layer structure is arranged and is used for placing the test equipment and the electric appliance control element, and each layer of structure can be manually opened so as to facilitate internal maintenance.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board testing, in particular to a testing fixture frame. Background Art

[0002] Mainboards and other circuit boards need to undergo functional testing before leaving the factory to ensure their product yield. Currently, testing is generally achieved through test fixtures. Test fixtures are generally composed of a frame with test equipment and some electrical control components integrated within the frame. Long-term use requires replacement and maintenance of the internal structure of the fixture. The existing test fixture layout is unreasonable, making it inconvenient to open the fixture. At the same time, there are no safety protection measures, which leads to dangers when personnel operate it. Utility Model Content

[0003] In order to address the deficiencies of the prior art, the present application provides a frame for a test fixture, comprising an upper frame assembly and a lower frame assembly, wherein the upper frame assembly includes an upper frame having an enclosed installation space inside, and the top wall and side walls of the upper frame are hinged so that the upper frame can be opened from the top, and the lower frame assembly includes a lower frame having an enclosed installation space inside, and the top wall and side walls of the lower frame are hinged so that the lower frame can be opened from the top; wherein, there is a gap between the upper frame and the lower frame and the two are connected by a nitrogen spring.

[0004] Furthermore, a luggage buckle is provided between the top wall and the side wall of the upper frame, and a hidden handle is also provided on the top wall to facilitate fixing and opening the upper frame.

[0005] Furthermore, an anti-fouling support rod is provided between the top wall and the bottom wall of the upper frame to provide protection after the upper frame is opened.

[0006] Furthermore, a wire groove is provided along the connection between the side wall and the bottom wall in the upper frame to facilitate wiring of components in the upper frame.

[0007] Furthermore, a plurality of cooling fans are provided on the side walls of the upper frame for dissipating heat inside the upper frame.

[0008] Furthermore, a baffle is provided at the interval between the upper frame and the lower frame, and one side of the baffle is open.

[0009] Furthermore, safety gratings are provided on both sides of the opening of the enclosure plate to prevent operators from getting their hands pinched or other dangerous operations.

[0010] Furthermore, a nitrogen spring is provided between the top wall and the side wall of the lower frame, so as to facilitate opening the lower frame for maintenance inside the frame.

[0011] Furthermore, a handle is provided on the top wall of the lower frame.

[0012] Furthermore, a wire groove is provided along the connection between the side wall and the bottom wall in the lower frame, which also facilitates the routing of components in the lower frame.

[0013] The benefit of the present application is that the test fixture frame provided is a three-layer structure frame for placing test equipment and electrical control components, and each layer of the structure can be manually opened to facilitate internal maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of an embodiment of a test fixture framework for this application;

[0015] Figure 2 for Figure 1 Schematic diagram of the middle and upper frame structure;

[0016] Figure 3 for Figure 1 Schematic diagram of the connection structure between the upper frame and the lower frame.

[0017] The following are marked in the figure: 10, upper frame, 11, hinge, 12, hidden handle, 13, wire trough, 14, cooling fan, 15, foolproof support rod, 16, luggage buckle, 17, rotating rod, 18, maintenance handle;

[0018] 20. Lower frame, 201. Heat dissipation holes, 21. Support plate;

[0019] 30. Nitrogen spring, 31. Enclosure plate, 32. Safety grating. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0021] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0022] In this application, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe this application and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0023] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0024] Furthermore, the terms "installed," "disposed," "provided with," "connected," "connected," and "socketed" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0025] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] See also Figure 1-Figure 3This embodiment provides a test fixture frame, which is divided into three layers: upper, middle and lower. The upper structure includes an upper frame 10, and the lower structure includes a lower frame 20. The space between the upper frame 10 and the lower frame 20 is the middle structure, which is used to place the product to be tested for testing. The upper frame 10 and the lower frame 20 are connected by a nitrogen spring 30 to enable the middle space to be opened for inspection and maintenance.

[0027] The upper frame 10 has a rectangular cross-section and is composed of four side walls, a top wall and a bottom wall, so that there is a closed installation space inside. The top wall and the side walls are connected by a hinge 11, and a hidden handle 12 is provided on the top wall to facilitate opening the upper frame.

[0028] The upper frame 10 is used to place the electronic control part of the entire test fixture. The electronic control part is placed on the top for easy inspection and maintenance. The electronic control part is mainly composed of some electrical control components, such as PLC, IO expansion module and solenoid valve and other structures. Therefore, a wire groove 13 is provided circumferentially along the connection between the bottom wall and the side wall of the upper frame for fixing the wiring harness of the components. Two sets of cooling fans 14 are respectively provided on the opposite side walls for dissipating heat inside the upper frame.

[0029] Since the top wall of the upper frame is in an open state when personnel perform maintenance on the interior of the upper frame, an anti-fool support rod 15 is provided between the top wall and the bottom wall of the upper frame to support the top wall after it is opened, thereby ensuring the personal safety of the operator. After the top wall is closed, it is locked by the provided luggage buckle 16.

[0030] The structure of the lower frame 20 is basically the same as that of the upper frame, and is slightly larger in size than the upper frame. The top wall of the lower frame can also be opened, and nitrogen springs and luggage buckles are also provided between the top wall and the side wall to play a protective role. The interior of the lower frame is mainly used to place test boards and power supplies and other structures. Some switches, start buttons and emergency stop buttons and other structures are installed on the side walls. A wire groove is also circumferentially provided along the connection between the bottom wall and the side wall of the lower frame. In addition, multiple heat dissipation holes 201 are opened on the two side walls of the lower frame.

[0031] A plurality of support plates 21 are arranged at intervals on the lower frame 20, and a rotating rod 17 is provided on the bottom wall of the upper frame 10 along its length direction. The rotating rod 17 is also rotatably connected with the plurality of support plates 21. The nitrogen spring 30 is arranged between the top wall of the lower frame and the bottom wall of the upper frame. A maintenance handle 18 is also provided on the side wall of the upper frame 10 for lifting or lowering the entire upper frame.

[0032] A baffle plate 31 is circumferentially arranged between the top wall of the lower frame and the bottom wall of the upper frame to enclose the middle structure. One side of the baffle plate 31 is open for the entry and exit of the test plate. Safety gratings 32 are respectively arranged on both sides of the opening of the baffle plate 31 to prevent the operator from pinching his hands or other dangerous operations.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A test fixture frame, comprising an upper frame assembly and a lower frame assembly, characterized in that: The upper frame assembly includes an upper frame with a closed installation space inside, and the top wall and side walls of the upper frame are hinged so that the upper frame can be opened from the top. The lower frame assembly includes a lower frame with a closed installation space inside, and the top wall and side walls of the lower frame are hinged so that the lower frame can be opened from the top; wherein, there is a gap between the upper frame and the lower frame and the two are connected by a nitrogen spring.

2. The test fixture frame according to claim 1, wherein: A luggage buckle is provided between the top wall and the side walls of the upper frame, and a hidden handle is also provided on the top wall.

3. The test fixture frame according to claim 1, wherein: A fool-proof support rod is provided between the top wall and the bottom wall of the upper frame.

4. The test fixture frame according to claim 1, wherein: A wire groove is provided along the connection between the side wall and the bottom wall in the upper frame.

5. The test fixture frame according to claim 1, wherein: A plurality of cooling fans are arranged on the side walls of the upper frame.

6. The test fixture frame according to claim 1, wherein: A baffle plate is provided at the interval between the upper frame and the lower frame, and one side of the baffle plate is open.

7. The test fixture frame according to claim 6, characterized in that: Safety gratings are respectively arranged on both sides of the opening of the enclosure plate.

8. The test fixture frame according to claim 1, wherein: A nitrogen spring is arranged between the top wall and the side wall of the lower frame.

9. The test fixture frame according to claim 8, characterized in that: A handle is provided on the top wall of the lower frame.

10. The test fixture frame according to claim 1, wherein: A wire groove is provided along the connection between the side wall and the bottom wall in the lower frame.

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