Jig for detecting on-off of coil

Abstract

A jig for detecting on-off of a coil comprises a box body, a supporting table is arranged at the top end of the box body, an electric control circuit used for detecting a product is arranged in the box body, a containing groove is formed in the supporting table, a probe guide hole is formed in the containing groove, and a detection probe is assembled in the probe guide hole. A plurality of vertically-arranged guide columns are slidably assembled on the supporting table on the periphery of the containing grooves, supporting plates corresponding to the containing grooves in a one-to-one mode are arranged in the box body, the bottom ends of the guide columns are fixed to the supporting plates, and tension springs playing a reset role are arranged between the supporting plates and the supporting table. A plurality of contact pin supporting frames are detachably fixed to the bottom end of the supporting table on the periphery of the containing groove, vertically-arranged contact pin detection probes are fixed to the contact pin supporting frames, and detection holes are formed in the supporting table over the contact pin detection probes. The device is simple in structure and convenient to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of electronic component performance detection, in particular to a fixture for detecting the on / off state of a coil. Background Art

[0002] A jig is a broad category of tools used in carpentry, ironwork, locksmithing, mechanics, electrical control, and other crafts, primarily to assist in controlling position or movement. A coil typically refers to a ring-shaped wire winding, consisting of a coil of wire wound around an insulating tube. The wires are insulated from each other, and the insulating tube can be hollow or contain an iron core or a magnetic powder core. A pin is a one-time molded product made using an insert injection molding process, with the pin-shaped terminal embedded in the molded product becoming the pin. Electronic components with installed coils and pins need to be tested for performance. The current testing method is manual testing, where a worker uses a multimeter to measure the continuity between the two pins of the coil and then visually inspects the presence of the pin. Manual testing has the disadvantage of low testing efficiency and high labor intensity when multiple coils and a large number of pins are installed on a product. This not only increases the labor intensity of the staff, but also causes differences in testing between different people, leading to missed detections. Therefore, the existing technology makes it inconvenient to test whether the coils of electronic components are connected and the presence of pins. Utility Model Content

[0003] In order to solve the technical problem of the inconvenience in detecting whether the coil of an electronic component is connected and whether there is a pin in the prior art, the utility model provides a jig for detecting whether the coil is connected and whether there is a pin, comprising a box with an open top, a detachable horizontal support platform provided on the top of the box, a detection mechanism body and an electric control circuit for detecting the product are provided in the box, a plurality of wire holes for cables to pass through are opened on the rear side of the box, and the cables led out of the electric control circuit pass through the wire holes and are connected to a power supply. The support platform is provided with several placement slots for the products to be tested. The placement slots are provided with several probe guide holes corresponding to the products to be tested. The probe guide holes are equipped with detection probes. The support platform around the placement slots is slidably equipped with several vertically arranged guide columns. The box body is provided with support plates corresponding to each placement slot. The bottom ends of the guide columns are fixed to the support plates. A tension spring is provided between the support plates and the support platform to perform a reset function. When in use, the electronic component product to be tested is plugged into the guide column, and the electronic component product is pressed. The guide column moves downward along the guide tube, and the tension spring stretches until the electronic component product falls into the placement slot. Several pin support frames are detachably fixed to the bottom end of the support platform around the placement slots. Vertically arranged pin detection probes are fixed to the pin support frames. A detection hole is provided on the support platform directly above the pin detection probe.

[0004] Preferably, a vertically arranged proximity switch for detecting whether the product is in place is provided below the support platform, and the upper end of the proximity switch is detachably fixed to the support platform.

[0005] Preferably, a plurality of guide tubes corresponding to the guide posts are fixed to the bottom end of the support platform, the top ends of the guide tubes are detachably fixed to the bottom end of the support platform, and the lower ends of the guide posts are slidably sleeved in the guide tubes.

[0006] Preferably, the top of the support platform may be provided with a plurality of mounting holes for installing buzzers, and buzzers and indicator lights for alarming functions may be provided in the mounting holes.

[0007] The above solution has the following advantages:

[0008] Multiple detection probes are set in the placement slot, which can detect whether electronic components with multiple pins are connected at one time, thereby improving work efficiency and detection quality, and avoiding under-inspection and missed inspection; the setting of guide tubes and guide columns plays a supporting and guiding role for the electronic components to be inspected, facilitating the positioning operation of electronic components during inspection; the setting of tension springs plays a resetting role, facilitating the removal of electronic components after inspection, and facilitating the inspection of the next electronic component; the setting of proximity switches makes it easy to observe whether the electronic components are placed in place. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model Figure 1 ;

[0010] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model Figure 2 ;

[0011] Figure 3 It is a schematic diagram of the structure of the detection mechanism;

[0012] Figure 4 This is a schematic diagram of the main structure of the detection mechanism;

[0013] Figure 5 It is a schematic diagram of the right side structure of the detection mechanism body.

[0014] Figure numerals: 1. Box body; 2. Detection mechanism body; 11. Support platform; 12. Placement slot; 13. Mounting hole; 21. Probe guide hole; 22. Detection probe; 23. Guide column; 24. Guide tube; 25. Support plate; 26. Pin detection probe; 27. Proximity switch; 28. Tension spring; 29. ​​Pin support frame. DETAILED DESCRIPTION

[0015] like Figure 1-2As shown, a fixture for detecting the continuity of a coil comprises a box 1 with an opening at the top, a horizontal support platform 11 being detachably provided on the top of the box 1, a detection mechanism body 2 for detecting the product and an electric control circuit (not shown in the drawings of the specification) being provided inside the box 1, and a plurality of wire holes for passing cables are provided on the rear side of the box 1, and the cables led out of the electric control circuit pass through the wire holes and are connected to a power supply. The support platform 11 is provided with several placement slots 12 for placing the products to be tested, and the placement slots 12 are provided with several probe guide holes 21 arranged corresponding to the products to be tested, and the probe guide holes 21 are equipped with detection probes 22. The support platform 11 around the placement slots 12 can be slidably equipped with several vertically arranged guide columns 23. The box body 1 is provided with support plates 25 arranged one by one corresponding to each placement slot 12. The bottom end of the guide column 23 is fixed on the support plate 25, and a tension spring 28 for resetting is provided between the support plate 25 and the support platform 11. When in use, the electronic component product to be tested is inserted into the guide column 23, and the electronic component product is pressed. The guide column 23 moves downward along the guide tube 24. At this time, the tension spring 28 extends until the electronic component product falls into the placement slot 12. A plurality of pin support frames 29 are detachably fixed to the bottom of the support platform 11 around the placement slot 12. A vertically arranged pin detection probe 26 is fixed on the pin support frame 29. A detection hole is opened on the support platform 11 directly above the pin detection probe 26.

[0016] Preferably, a vertically arranged proximity switch 27 for detecting whether the product is in place is provided below the support platform 11 , and the upper end of the proximity switch 27 is detachably fixed to the support platform 11 .

[0017] Preferably, a plurality of guide tubes 24 corresponding to the guide posts 23 are fixed to the bottom end of the support platform 11 , the top ends of the guide tubes 24 are detachably fixed to the bottom end of the support platform 11 , and the lower ends of the guide posts 23 are slidably sleeved in the guide tubes 24 .

[0018] Preferably, the top of the support platform 11 may be provided with a plurality of mounting holes 13 for mounting buzzers, and a buzzer and an indicator light (not shown in the drawings of the specification) for alarming functions are provided in the mounting holes 13 .

[0019] Usage process:

[0020] When the present invention is in use, the electronic component product to be tested is plugged into the guide column 23, and the electronic component product is pressed. The guide column 23 moves downward along the guide tube 24, and the tension spring 28 stretches until the electronic component product falls into the placement slot 12. The proximity switch 27 detects that the electronic component product has moved to the specified position, and the coil of the electronic component product contacts the detection probe 22, and the pin contacts the pin detection probe 26. After the internal electronic control circuit is operated, if the test result is OK, the green light flashes; if the test result is NG, the buzzer alarms and the red light flashes.

[0021] In the description of the present invention, it should be understood that the terms "up", "down", "left", "right", "top", "bottom", "horizontal", "vertical", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the scope of protection of the present invention.

Claims

1. A fixture for detecting the continuity of a coil, comprising a box with an open top, a horizontal support platform detachably provided on the top of the box, a detection mechanism body and an electronic control circuit for detecting a product, characterized in that: The support table is provided with a plurality of placement slots for placing the products to be tested, and the placement slots are provided with a plurality of probe guide holes corresponding to the products to be tested, and the probe guide holes are equipped with detection probes. The support table around the placement slots can be slidably equipped with a plurality of vertically arranged guide columns, and the box body is provided with support plates arranged one by one corresponding to each placement slot, and the bottom end of the guide column is fixed on the support plate, and a tension spring for resetting is provided between the support plate and the support table; a plurality of pin support frames are detachably fixed to the bottom end of the support table around the placement slots, and a vertically arranged pin detection probe is fixed on the pin support frame, and a detection hole is provided on the support table directly above the pin detection probe.

2. A fixture for detecting the continuity of a coil according to claim 1, characterized in that : A vertically set proximity switch is provided under the support platform to detect whether the product is placed in place. The upper end of the proximity switch can be detachably fixed on the support platform.

3. A fixture for detecting the continuity of a coil according to claim 1, characterized in that : Several guide tubes corresponding to the guide columns are fixed to the bottom end of the support platform. The top ends of the guide tubes can be detachably fixed to the bottom end of the support platform, and the lower ends of the guide columns can be slidably sleeved in the guide tubes.

4. The fixture for detecting the continuity of a coil according to claim 1, characterized in that : The top of the support platform can be provided with several mounting holes for installing buzzers, and the mounting holes are provided with buzzers and indicator lights that serve as alarms.

5. A fixture for detecting the continuity of a coil according to any one of claims 1 to 4, characterized in that : There are several wire holes on the back of the box for cables to pass through.

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