A fixing jig for discrete device detection

Abstract

The utility model relates to electric appliance element detection technical field, especially a kind of fixing jig for discrete device detection, it include: workbench, the top of the workbench is fixedly installed with positioning plate;Fixed block, the fixed block is fixedly installed at the top of positioning plate, the top of the fixed block is provided with the through slot that left and right is penetrated, the through slot is used to the positioning of the material band passing through through slot, the bottom end of the fixed block is provided with the avoidance slot that left and right is penetrated, the avoidance slot is used to such material band;And segmentation knife, the segmentation knife adjustable installation is in the inside right end of through slot, the segmentation knife is used to the protective film of material band segmentation. By using the above technical scheme, the film can be separated when checking, so the left end of the fixed block is provided with unwinding device, new film is unwound, and the film cut by the segmentation knife is closed by fixing on the material band by hot pressing mode, the unpacking detection of component in material band is realized.

Description

Technical Field

[0001] This utility model relates to the field of electrical component testing technology, and in particular to a fixture for testing discrete devices. Background Technology

[0002] In the electronics manufacturing industry, discrete components (such as resistors, capacitors, and transistors) require electrical performance testing after packaging. In traditional testing processes, components are typically transported in the form of reel-type tapes, which consist of a base tape carrying the component and a protective film covering it. During testing, the protective film must be removed to expose the component leads, and then the tape is resealed to protect the component after testing.

[0003] In actual operation, the protective film needs to be manually cut open during the testing process, and then a new protective film needs to be manually applied and heat-sealed after testing. This process has two major drawbacks: low efficiency: manual film removal / sealing significantly reduces the testing speed; quality risk: manual operation is prone to poor sealing or uncontrolled heat sealing temperature, which may cause contamination or damage to the device. Therefore, there is an urgent need for a simple testing fixture. Utility Model Content

[0004] The purpose of this invention is to provide a fixture for testing discrete devices, so as to solve the problems existing in the prior art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A fixture for testing discrete devices, comprising:

[0007] A workbench, the top of which is fixedly mounted with a positioning plate;

[0008] A fixing block is fixedly installed on the top of the positioning plate. The top of the fixing block is provided with a through groove running from left to right. The through groove is used to position the material strip passing through the through groove. The bottom of the fixing block is provided with a clearance groove running from left to right. The clearance groove is used for, for example, the material strip.

[0009] And a dividing blade, which is adjustablely mounted inside the right end of the through groove, the dividing blade being used to divide the protective film of the material strip.

[0010] By adopting the above technical solution, a rotating shaft can be fixedly installed on the worktable to fix the material tray. The material tray is used to wind the material strip. The material strip on the material tray passes through the right end of the through groove, exits from the left end of the through groove, then enters from the left end of the clearance groove, exits from the right end of the clearance groove, and is then rewound onto the material tray. Therefore, for ease of use, a bracket needs to be set on the worktable, with two rotating shafts of different heights on the bracket. Both rotating shafts need to hold material trays. The upper material tray is used for feeding, and the lower material tray is used for winding. The material strip wound on the material tray contains the material strip with the components already packaged, so the material strip will have a sealing film. During inspection, the sealing film needs to be separated. Therefore, an unwinding device is set on the left end of the fixing block to unwind the new sealing film and fix it onto the material strip by heat sealing, and re-close the sealing film that has been cut by the dividing knife.

[0011] In a further embodiment, a support frame is fixedly installed on the top left end of the fixing block. A through-hole is provided at the top center of the support frame. The top end of a slide rod is slidably installed in the slide hole. A heating block is fixedly installed on the bottom end of the slide rod. An extension end located at the top of the slide hole is provided on the top of the slide rod. A retaining ring is fixedly installed on the top of the slide rod. A return spring is provided on the bottom end of the slide rod. The return spring is coaxial with the slide rod. The top end of the return spring is fixedly connected to the support frame. The bottom end of the return spring abuts against the top surface of the heating block.

[0012] In a further embodiment, the retaining ring is threadedly connected to the slide rod.

[0013] By adopting the above technical solution, the height of the heating block can be changed by adjusting the position of the retaining ring at the top of the slide rod. The heating block is used to heat and seal the sealing film, so the height needs to be adjusted according to the size of the material strip. This setting allows the device to adapt to material strips of different sizes and specifications.

[0014] In a further embodiment, a rotating shaft is fixedly installed on the left side of the fixing block.

[0015] By adopting the above technical solution, since the material strip needs to enter the through groove from the right side and then leave from the left side of the through groove before bending downwards into the clearance groove at the bottom of the fixed block, Xu Tao guides the material strip through a rotating shaft in order to better control the bending angle and range, so as to avoid sharp angle bends within 90 degrees, which would damage the material strip.

[0016] In a further embodiment, the bottom of the heating block is provided with a mounting groove, an insulation layer is bonded and fixed in the mounting groove, and an electric heating wire is fixedly installed inside the mounting groove.

[0017] By adopting the above technical solution, the heating wire can provide a heat source. When the bottom of the heating block is pressed against the top of the material strip, so that the sealing film on the top of the material strip is tightly attached to the top of the material strip, the heated semi-molten sealing film can be pressed tightly onto the top of the material strip.

[0018] In a further embodiment, two stop levers are symmetrically arranged at the top center of the through groove.

[0019] In summary, this utility model has the following beneficial effects:

[0020] 1. During use, a rotating shaft is fixedly installed on the workbench to fix the material tray. The material tray is used to wind the material strip. The material strip on the tray passes through the right end of the through groove, exits from the left end of the through groove, then enters from the left end of the clearance groove, exits from the right end of the clearance groove, and is then rewound onto the material tray. Therefore, for ease of use, a bracket needs to be set on the workbench, with two rotating shafts of different heights on the bracket. Both rotating shafts need to hold material trays. The upper material tray is used for feeding, and the lower material tray is used for winding. The material strip wound on the material tray contains the material strip with the components already packaged, so the material strip will have a sealing film. During inspection, the sealing film needs to be separated. Therefore, an unwinding device is set on the left end of the fixing block to unwind the new sealing film and fix it onto the material strip by heat sealing, thus resealing the sealing film that was cut by the dividing knife. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram illustrating the connection relationship between the support frame and the sliding rod of this utility model.

[0023] In the diagram, 1 is the workbench; 2 is the fixing block; 3 is the positioning plate; 4 is the dividing blade; 5 is the support frame; 6 is the slide rod; 7 is the heating block; 8 is the retaining ring; and 9 is the return spring. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings.

[0025] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to the attached figures. Figure 1In this specification, the terms "bottom surface" and "top surface," "inner" and "outer" refer to the direction toward or away from the geometry of a specific component. Furthermore, 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this specification, "a plurality of" means two or more, unless otherwise explicitly and specifically defined by the direction of the center.

[0026] Example 1:

[0027] like Figures 1-2 As shown, a fixture for testing discrete devices includes:

[0028] Workbench 1, with a positioning plate 3 fixedly installed on its top;

[0029] Fixed block 2 is fixedly installed on the top of positioning plate 3. The top of fixed block 2 is provided with a through groove that runs from left to right. The through groove is used to position the material strip passing through the through groove. The bottom of fixed block 2 is provided with a clearance groove that runs from left to right. The clearance groove is used for, for example, the material strip.

[0030] The dividing blade 4 is adjustablely installed inside the right end of the through groove. The dividing blade 4 is used to divide the protective film of the material strip. A support frame 5 is fixedly installed on the top left end of the fixed block 2. A sliding hole is set at the top center of the support frame 5, and the top end of the sliding rod 6 is slidably installed in the sliding hole. A heating block 7 is fixedly installed at the bottom end of the sliding rod 6. An extension end is set at the top of the sliding hole. A retaining ring 8 is fixedly installed on the top of the sliding rod 6. A return spring 9 is set at the bottom end of the sliding rod 6. The return spring 9 is coaxial with the sliding rod 6. The top end of the return spring 9 is fixedly connected to the support frame 5. The bottom end of the return spring 9 is pressed against the top surface of the heating block 7. The retaining ring 8 is threadedly connected to the sliding rod 6. A rotating shaft is fixedly installed on the left side of the fixed block 2. An installation groove is set at the bottom of the heating block 7. A heat insulation layer is bonded and fixed in the installation groove. An electric heating wire is fixedly installed inside the installation groove. Two stop rods are symmetrically set on the left and right sides at the top center of the through groove.

[0031] Specific implementation process: When using it, simply place the camera at the top center of the channel to obtain high-definition photos.

[0032] Before use, place the material tray in the corresponding position, then pull the material strip into the through groove from the right end. Use the dividing knife to remove the sealing film on the upper surface of the material strip. Then, attach a traction belt to the left end of the material strip. The traction belt passes out of the through groove from the left end, then enters from the left side of the clearance groove, and exits from the left side of the clearance groove. Then, it is wound onto another material tray. At the same time, because the upper surface of the material strip needs to be resealed, the traction belt also needs to pull the sealing film on the reel with the sealing film wrapped around it, so that the sealing film is installed on the moving path of the material strip.

[0033] When in use, a rotating shaft can be fixed on the worktable to fix the material tray. The material tray is used to wind the material strip. The material strip on the material tray passes through the right end of the through groove, exits from the left end of the through groove, then enters from the left end of the clearance groove, exits from the right end of the clearance groove, and is then rewound onto the material tray. Therefore, for ease of use, a bracket needs to be set on the worktable, with two rotating shafts of different heights on the bracket. Both rotating shafts need to hold material trays. The upper material tray is used for feeding, and the lower material tray is used for winding. The material strip wound on the material tray contains the material strip with the components already packaged, so the material strip will have a sealing film. During inspection, the sealing film needs to be separated. Therefore, an unwinding device is set on the left end of the fixing block to unwind the new sealing film and fix it onto the material strip by heat sealing, and re-close the sealing film that has been cut by the dividing knife.

[0034] In the embodiments disclosed in this utility model, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments disclosed in this utility model according to the specific circumstances.

[0035] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A fixture for testing discrete devices, characterized in that: include: Workbench (1), with a positioning plate (3) fixedly installed on the top of the workbench (1); Fixed block (2), the fixed block (2) is fixedly installed on the top of the positioning plate (3), the top of the fixed block (2) is provided with a through groove running from left to right, the through groove is used to position the material strip passing through the through groove, and the bottom of the fixed block (2) is provided with a clearance groove running from left to right, the clearance groove is used for, for example, the material strip; And a dividing blade (4), which is adjustablely installed inside the right end of the through groove, the dividing blade (4) is used to divide the protective film of the material strip.

2. The fixture for testing discrete devices according to claim 1, characterized in that: A support frame (5) is fixedly installed on the top left end of the fixed block (2). A sliding hole with vertical penetration is provided at the top center of the support frame (5). The top end of the slide rod (6) is slidably installed in the sliding hole. A heating block (7) is fixedly installed at the bottom end of the slide rod (6). An extension end located at the top of the sliding hole is provided at the top end of the slide rod (6). A retaining ring (8) is fixedly installed at the top of the slide rod (6). A return spring (9) is provided at the bottom end of the slide rod (6). The return spring (9) is coaxial with the slide rod (6). The top end of the return spring (9) is fixedly connected to the support frame (5). The bottom end of the return spring (9) is pressed against the top surface of the heating block (7).

3. The fixture for testing discrete devices according to claim 2, characterized in that: The retaining ring (8) is threadedly connected to the slide rod (6).

4. The fixture for testing discrete devices according to claim 1, characterized in that: A rotating shaft is fixedly installed on the left side of the fixing block (2).

5. A fixture for testing discrete devices according to claim 2, characterized in that: The bottom of the heating block (7) is provided with an installation groove, and a heat insulation layer is bonded and fixed in the installation groove. An electric heating wire is fixedly installed inside the installation groove.

6. The fixture for testing discrete devices according to claim 1, characterized in that: Two stop levers are symmetrically arranged at the top center of the through slot.

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