Chip resistor test fixture

Abstract

The utility model relates to the technical field of chip resistor testing, in particular to a chip resistor testing clamp, which comprises a base, a pin seat, a testing ejector pin and a fixing mechanism, the fixing mechanism comprises a fixing ring, an exhaust fan, four air guide pipes, four suction heads, an ejector block, a fixing block and a blanking assembly, the fixing ring is provided with a chamfer and a notch, the pin seat is fixedly connected with the base, and the testing ejector pin is arranged on the base. The test ejector pin is fixedly connected with the pin seat, one ends of the four air guide pipes are fixedly connected with the output end of the exhaust fan, the other ends of the four air guide pipes penetrate through the base and are fixedly connected and communicated with the four suction heads respectively, the ejector block is connected with the base in a sliding mode, and the fixing block is fixedly connected with the base. The discharging assembly is arranged on the fixing block and the top block, the resistor is placed on the fixing ring, the exhaust fan fixes the resistor on the fixing ring, and when the resistor is fixed and disassembled, the resistor is disassembled through the discharging assembly, the process of installing and disassembling the resistor is simple, and the workload of operators is reduced.

Description

Technical Field

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

[0002] When the current chip resistor testing device tests a chip resistor, it is necessary to remove the previously tested resistor and then place the resistor to be tested. This requires a shutdown operation, resulting in a reduction in the testing efficiency of the resistor and certain limitations in use.

[0003] In the prior art CN217879425U, during the process of testing a resistor, a staff member can continuously place resistors in the remaining placement slots. At the same time, after the resistance between the two test thimbles is tested, the test thimbles reset. After the turntable rotates again, the tested resistor is exported, and the untested resistor is conveyed to the test thimbles for testing. The staff only needs to remove the tested resistor and then place the resistor to be tested. The device can realize simultaneous feeding, testing, and taking, without the need for a shutdown operation, increasing the testing efficiency of the resistor and being more convenient to use.

[0004] When using this prior art for resistor testing, it is necessary to manually and firmly clamp the chip resistor into the placement slot. When removing the chip resistor, there is no corresponding disassembly component, and only the chip resistor can be manually dug out. The process of installing and disassembling the chip resistor is cumbersome, increasing the workload of the operator. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a chip resistor testing fixture, which solves the problem that when using this prior art for resistor testing, it is necessary to manually and firmly clamp the chip resistor into the placement slot. When removing the chip resistor, there is no corresponding disassembly component, and only the chip resistor can be manually dug out. The process of installing and disassembling the chip resistor is cumbersome, increasing the workload of the operator.

[0006] To achieve the above purpose, the utility model provides a chip resistor testing fixture, including a base, a needle base, test thimbles, and a fixing mechanism. The fixing mechanism includes a fixing ring, an exhaust fan, four air ducts, four suction heads, a top block, a fixing block, and a blanking component. The fixing ring has a chamfer and a notch. The needle base is fixedly connected to the base and is located above the base. The test thimbles are fixedly connected to the needle base. One end of the four air ducts is fixedly connected to the output end of the exhaust fan and is in communication. The other ends of the four air ducts penetrate the base and are respectively fixedly connected to the four suction heads and are in communication. The top block is slidably connected to the base and is located in the notch. The fixing block is fixedly connected to the base. The blanking component is arranged on the fixing block and the top block.

[0007] Among them, the blanking component includes a telescopic spring and a pull rod. Two ends of the telescopic spring are respectively fixedly connected to the top block and the fixed block. One end of the pull rod is fixedly connected to the top block and is located inside the telescopic spring. The other end of the pull rod is slidably connected to the fixed block.

[0008] Among them, the blanking component further includes a clamping block. The clamping block is fixedly connected to the base and is located inside the fixed ring.

[0009] Among them, the fixing mechanism further includes a limiting block and a limiting groove. The limiting groove is arranged on the base. The limiting block is fixedly connected to the top block. The limiting block is slidably connected to the base and is located inside the limiting groove.

[0010] Among them, the chip resistor test fixture further includes a protection mechanism. The protection mechanism is arranged on the base and the exhaust fan.

[0011] Among them, the protection mechanism includes a fixing frame, a mounting frame and a plurality of bolts. The plurality of bolts are threadedly connected to the fixing frame and the base. The mounting frame is fixedly connected to the fixing frame, and the exhaust fan is located inside the mounting frame.

[0012] For a chip resistor test fixture of the present utility model, the needle base is fixedly connected to the base and is located above the base. The test thimble is fixedly connected to the needle base. One ends of four air ducts are fixedly connected to the output end of the exhaust fan and are communicated. The other ends of the four air ducts penetrate through the base and are respectively fixedly connected to four suction heads and are communicated. The top block is slidably connected to the base and is located inside the notch. The fixed block is fixedly connected to the base. The blanking component is arranged on the fixed block and the top block. When testing a chip resistor, the chip resistor is placed on the fixed ring. Four sides of the chip resistor are in contact with the chamfers. The exhaust fan is started. The exhaust fan generates strong suction. Air between the base and the chip resistor is extracted through the four air ducts and the four suction heads, resulting in the pressure inside the space between the base and the chip resistor being less than the external pressure. The chip resistor is firmly adsorbed on the fixed ring. When disassembling the chip resistor, the blanking component controls the top block to move away from the fixed ring. The top block leaves the notch, and the notch is opened. Air enters the space between the base and the chip resistor from the notch. The air pressure inside the space is the same as the external pressure. The chip resistor loses the force for adhering to the fixed ring, and the operator can easily take down the chip resistor. The process of installing and disassembling the chip resistor is simple, reducing the workload of the operator. Description of the Drawings

[0013] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the attached drawings required for the description of the embodiments or the prior art.

[0014] Figure 1 It is a schematic structural diagram of the overall structure of the first embodiment of the patch resistor test fixture of the present utility model.

[0015] Figure 2 is Figure 1 the enlarged view of part A in

[0016] Figure 3 It is a schematic structural diagram of the overall structure of the first embodiment of the patch resistor test fixture of the present utility model in another direction.

[0017] Figure 4 It is a schematic structural diagram of the overall structure of the second embodiment of the patch resistor test fixture of the present utility model.

[0018] 101 - base, 102 - pin base, 103 - test ejector pin, 104 - fixing ring, 105 - chamfer, 106 - notch, 107 - suction head, 108 - top block, 109 - fixing block, 110 - telescopic spring, 111 - pull rod, 112 - clamping block, 113 - limiting block, 114 - limiting groove, 115 - exhaust fan, 116 - air duct, 201 - fixing frame, 202 - bolt, 203 - mounting frame. Specific embodiments

[0019] The following will describe in detail the embodiments of the present utility model. The examples of the embodiments are shown in the attached drawings. The embodiments described below with reference to the attached drawings are exemplary and are intended to explain the present utility model and should not be construed as a limitation to the present utility model.

[0020] The first embodiment of the present application is as follows:

[0021] Please refer to Figures 1 - 3 , Figure 1 which is a schematic structural diagram of the overall structure of the first embodiment of the patch resistor test fixture of the present utility model, Figure 2 is Figure 1 the enlarged view of part A in Figure 3 and which is a schematic structural diagram of the overall structure of the first embodiment of the patch resistor test fixture of the present utility model in another direction.

[0022] The utility model provides a patch resistor test fixture, which includes a base 101, a needle base 102, test thimbles 103 and a fixing mechanism. The fixing mechanism includes a limit block 113, a limit groove 114, a fixing ring 104, an exhaust fan 115, four air ducts 116, four suction heads 107, a top block 108, a fixing block 109 and a blanking component. The fixing ring 104 has a chamfer 105 and a notch 106. The blanking component includes a telescopic spring 110, a clamping block 112 and a pull rod 111. Through the foregoing solution, the problem that when using the prior art for resistor testing, it is necessary to manually clamp the patch resistor firmly into the placement groove, and there is no corresponding disassembly component when removing the patch resistor, and it can only be manually picked out, and the process of installing and removing the patch resistor is cumbersome, increasing the workload of the operator is solved.

[0023] In this specific embodiment, the needle base 102 is fixedly connected to the base 101 and is located above the base 101. The test thimbles 103 are fixedly connected to the needle base 102. One end of each of the four air ducts 116 is fixedly connected to and communicates with the output end of the exhaust fan 115. The other ends of the four air ducts 116 penetrate through the base 101 and are respectively fixedly connected to and communicate with the four suction heads 107. The top block 108 is slidably connected to the base 101 and is located in the notch 106. The fixing block 109 is fixedly connected to the base 101. The blanking component is arranged on the fixing block 109 and the top block 108. When testing the patch resistor, the patch resistor is placed on the fixing ring 104, and the four sides of the patch resistor are in contact with the chamfer 105. The exhaust fan 115 is started. The exhaust fan 115 generates a strong suction force, and the air between the base 101 and the patch resistor is extracted through the four air ducts 116 and the four suction heads 107, resulting in the pressure in the space between the base 101 and the patch resistor being less than the external pressure, and the patch resistor is firmly adsorbed on the fixing ring 104. When removing the patch resistor, the blanking component controls the top block 108 to move away from the fixing ring 104, the top block 108 leaves the notch 106, the notch 106 is opened, and air enters the space between the base 101 and the patch resistor from the notch 106. The air pressure in the space is the same as the external pressure, and the patch resistor loses the force to adhere to the fixing ring 104, and the operator can easily remove the patch resistor. The process of installing and removing the patch resistor is simple, reducing the workload of the operator.

[0024] Wherein, two ends of the telescopic spring 110 are respectively fixedly connected to the top block 108 and the fixed block 109. One end of the pull rod 111 is fixedly connected to the top block 108 and is located inside the telescopic spring 110. The other end of the pull rod 111 is slidably connected to the fixed block 109. The limiting groove 114 is provided on the base 101. The limiting block 113 is fixedly connected to the top block 108. The limiting block 113 is slidably connected to the base 101 and is located inside the limiting groove 114. The clamping block 112 is fixedly connected to the base 101 and is located inside the fixing ring 104. When disassembling the chip resistor, the pull rod 111 is pulled in a direction away from the fixing ring 104. The pull rod 111 drives the top block 108 to move. At the same time, the telescopic spring 110 contracts. The top block 108 leaves the notch 106, and the notch 106 is opened. Air enters the space between the base 101 and the chip resistor from the notch 106. The air pressure in the space is the same as that of the outside. The chip resistor loses the force attached to the fixing ring 104, and the operator can easily remove the chip resistor. After the chip resistor is removed, the pull rod 111 is released. The telescopic spring 110 extends under the action of its own elastic potential energy and drives the top block 108 to move in the direction of the notch 106 until the top block 108 is inserted into the notch 106. The notch 106 is closed. The clamping block 112 clamps the top block 108 to ensure that the telescopic spring 110 will not extend excessively and push the top block 108 into the fixing ring 104. When the top block 108 slides on the base 101, the limiting block 113 slides in the limiting groove 114. The limiting block 113 and the limiting groove 114 play a role in limiting and guiding the movement of the top block 108 to ensure that the top block 108 maintains the correct movement track, thereby increasing the stability of the device.

[0025] When using the utility model for mounting and dismounting the chip resistor, place the chip resistor on the fixing ring 104, with the four sides of the chip resistor contacting the chamfer 105. Start the exhaust fan 115, which generates a strong suction force. Through the four air ducts 116 and the four suction heads 107, the air between the base 101 and the chip resistor is extracted, resulting in the pressure in the space between the base 101 and the chip resistor being less than the external pressure. The chip resistor is firmly adsorbed on the fixing ring 104. After the chip resistor test is completed, when disassembling the chip resistor, the blanking assembly controls the top block 108 to move away from the fixing ring 104. The top block 108 leaves the notch 106, and the notch 106 is opened. Air enters the space between the base 101 and the chip resistor from the notch 106, and the air pressure in the space is the same as the external pressure. The chip resistor loses the force to adhere to the fixing ring 104, and the operator can easily remove the chip resistor. After the chip resistor is removed, release the pull rod 111. The telescopic spring 110 elongates under the action of its own elastic potential energy and drives the top block 108 to move towards the notch 106 until the top block 108 inserts into the notch 106 and the notch 106 is closed, facilitating the next installation of the chip resistor. The process of mounting and dismounting the chip resistor is simple, reducing the workload of the operator.

[0026] The second embodiment of this application is as follows:

[0027] Please refer to Figure 4 , Figure 4 which is the overall structural schematic diagram of the second embodiment of the chip resistor test fixture of the utility model. On the basis of the first embodiment, the chip resistor test fixture of this embodiment further includes a protection mechanism, and the protection mechanism is arranged on the base 101 and the exhaust fan 115. The protection mechanism includes a fixing frame 201, a mounting frame 203, and a plurality of bolts 202.

[0028] A plurality of the bolts 202 are threadedly connected to the fixing frame 201 and the base 101. The mounting frame 203 is fixedly connected to the fixing frame 201, and the exhaust fan 115 is located inside the mounting frame 203. The exhaust fan 115 is mounted on the fixing frame 201. The mounting frame 203 covers the exhaust fan 115. The fixing frame 201 and the mounting frame 203 play a role in storing and protecting the exhaust fan 115, increasing the practicability of the device.

[0029] What is disclosed above is only one or more preferred embodiments of this application, and the scope of rights of this application cannot be limited thereby. Those of ordinary skill in the art can understand the entire or partial processes of implementing the above embodiments, and the equivalent changes made according to the claims of this application still fall within the scope covered by this application.

Claims

1. A chip resistor test fixture, comprising a base, a needle holder and a test ejector pin, wherein the needle holder is fixedly connected to the base and is located above the base, and the test ejector pin is fixedly connected to the needle holder, characterized in that: It also includes a fixing mechanism, which includes a fixing ring, an exhaust fan, four air ducts, four suction heads, a top block, a fixing block and a material discharge assembly. The fixing ring has a chamfer and a notch. One end of the four air ducts is fixedly connected to the output end of the exhaust fan and is communicated with each other. The other ends of the four air ducts pass through the base and are respectively fixedly connected to the four suction heads and are communicated with each other. The top block is slidably connected to the base and is located in the notch. The fixing block is fixedly connected to the base. The material discharge assembly is arranged on the fixing block and the top block.

2. The chip resistor test fixture as claimed in claim 1, characterized in that: The unloading assembly includes a telescopic spring and a pull rod, the two ends of the telescopic spring are fixedly connected to the top block and the fixed block respectively, one end of the pull rod is fixedly connected to the top block and is located in the telescopic spring, and the other end of the pull rod is slidably connected to the fixed block.

3. The chip resistor test fixture as claimed in claim 1, characterized in that: The blanking assembly also includes a clamping block, which is fixedly connected to the base and located in the fixing ring.

4. The chip resistor test fixture according to claim 1, characterized in that: The fixing mechanism further comprises a limiting block and a limiting groove, wherein the limiting groove is arranged on the base, the limiting block is fixedly connected to the top block, and the limiting block is slidably connected to the base and is located in the limiting groove.

5. The chip resistor test fixture as claimed in claim 1, characterized in that: The chip resistor testing fixture further includes a protection mechanism, which is arranged on the base and the exhaust fan.

6. The chip resistor test fixture as claimed in claim 5, characterized in that: The protection mechanism includes a fixing frame, a mounting frame and a plurality of bolts, wherein the plurality of bolts are threadedly connected to the fixing frame and the base, the mounting frame is fixedly connected to the fixing frame, and the exhaust fan is located in the mounting frame.

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