FCT test equipment

Abstract

The utility model discloses an FCT test equipment, including the wiring bottom box, probe template, PCBA template, gantry, press cylinder, pressure plate, said wiring bottom box top is provided with the base plate, said base plate is provided with a plurality of spacing posts, said probe template is arranged between said spacing posts in cooperation, said probe template periphery is provided with a plurality of studs, said PCBA template is erected on said studs, said gantry is provided with a plurality of pins, said gantry is provided with a plurality of pins, said pins are provided with a plurality of pins, said pins are provided with a plurality of pins, said pins are provided with a plurality of pins, said pins are provided with a plurality of pins, said pins are provided with a plurality of pins, and said pins are provided with a plurality of pins. A reference positioning block and a reference positioning hole are arranged on the PCBA template, a base matched with the reference positioning hole is arranged on the substrate, and a guide sleeve is integrally formed on the base. Through the above mode, according to the FCT test equipment provided by the utility model, accurate positioning association is established for the pressing plate, the PCBA template, the probe template and the substrate from three dimensions according to the requirement of high pin positioning required in the circuit board test process, so that a test program can be quickly started without manual fine tuning intervention, and the test efficiency is improved. The method has the advantages of simple operation, high positioning precision, efficient process and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of circuit board test equipment, especially to a FCT test equipment. BACKGROUND

[0002] FCT test, full name Functional Circuit Test, is a test method for the test target board (Unit Under Test, UUT for short). FCT test provides a simulated operating environment (including excitation and load) for UUT, makes it work in various design states, and obtains parameters in each state to verify the function of UUT. In simple terms, it is to load appropriate excitation on UUT and measure whether the response of its output end meets the requirements. This test method is generally used for functional test of printed circuit board assembly (PCBA).

[0003] The traditional test bench needs to perform manual fine adjustment before the test process of the circuit board to be tested, and the contact reliability of the probe during the test process is relatively high, which requires that the fine adjustment process ensure that all probes are accurately positioned. Since the fine adjustment process is complicated and needs to be re-taught every time the type is changed, the test efficiency is low, the test result reliability is poor, and the production needs cannot be met. UTILITY MODEL CONTENT

[0004] The utility model mainly solves the technical problem to provide a kind of FCT test equipment, the demand of high positioning of pin needed in the process of circuit board test, accurate positioning is established from three dimensions respectively for pressing plate, PCBA template, probe template, substrate, to quickly start test procedure without manual fine adjustment intervention, with the advantages such as simple operation, high positioning accuracy, efficient process.

[0005] To solve the above technical problems, one technical scheme of the utility model is provided: a kind of FCT test equipment, including wiring bottom box, probe template, PCBA template, gantry, lower pressure cylinder, pressing plate, the wiring bottom box top is provided with substrate, the substrate is provided with several limit posts, the limit post is matched and is provided with probe template, the probe template periphery is provided with several studs, the stud is provided with PCBA template, the PCBA template is provided with reference positioning block and is provided with reference positioning hole, the substrate is provided with the base matched with reference positioning hole, the base is integrally formed and is provided with guide sleeve, the wiring bottom box is provided with gantry directly above, the gantry is hung with lower pressure cylinder, the lower pressure cylinder is hung with pressing plate and is integrated several top posts and guide columns, the top post is matched and is pressed PCBA template, the guide column is aligned with reference positioning hole and is matched with the guide sleeve and is docked.

[0006] In a preferred embodiment of the utility model, the probe template is provided with a plurality of vertical upward buffer springs and spring probes, and the top column is matched around the spring probe in the vertical direction.

[0007] In a preferred embodiment of the utility model, the wiring bottom box is provided with a linear sliding table at the bottom, and the wiring bottom box is provided with a quick clamp connected in parallel at both sides, and the quick clamp is provided with an electrical connector matched with the wiring bottom box at the end of the stroke.

[0008] In a preferred embodiment of the utility model, the lower end of the lower pressing cylinder is provided with an adapter plate, the adapter plate is provided with a clamping groove at both sides, the clamping groove is horizontally inserted with a quick-change template, and the pressing plate is horizontally fixed below the quick-change template.

[0009] In a preferred embodiment of the utility model, a plurality of electric element avoiding grooves are formed in the PCBA template, a plurality of probe holes are formed in the electric element avoiding groove, and a plurality of PCBA positioning pins are arranged around the electric element avoiding groove.

[0010] In a preferred embodiment of the utility model, the lower end of the top column is columnar or conical, and the profile of the lower end of the top column is provided with a chamfer, and all the top columns are arranged around the electric element avoiding groove.

[0011] In a preferred embodiment of the utility model, the guide sleeve is offset and forms a step at the outer edge of the base, and the step is pressed on the edge of the probe template.

[0012] In a preferred embodiment of the utility model, the base plate is provided with a P template positioning column, the bottom surface of the PCBA template is provided with a slot corresponding to the P template positioning column, and the probe template is correspondingly provided with a via hole matched with the P template positioning column.

[0013] The utility model discloses a kind of FCT test equipment, for the demand of high positioning of pin required in circuit board test process, establish accurate positioning correlation from three dimensions respectively for pressing plate, PCBA template, probe template, base plate, so as to be able to quickly start test procedure without manual fine adjustment intervention, with the advantages of simple operation, high positioning accuracy, process efficient etc. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the drawings needed in the embodiment description will be simply introduced as follows, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained without creative labor based on these drawings, wherein:

[0015] Figure 1 is a whole structure diagram of the FCT test equipment of the utility model;

[0016] Figure 2 is a schematic diagram of the state of the pressing plate matched to the PCBA template;

[0017] Figure 3 is a schematic diagram of the positional relationship of the pressing plate, the PCBA template, the probe template and the substrate;

[0018] Figure 4 is a structure diagram of the base. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0020] As shown in Figures 1-4 the embodiments of the utility model include:

[0021] An FCT test equipment, comprising a wiring bottom box 1, a probe template 2, a PCBA template 3, a gantry 4, a downward pressing cylinder 5, a pressing plate 6, the wiring bottom box 1 is provided with a substrate 7 on the top, a plurality of limiting columns 8 are arranged on the substrate 7, the probe template 2 is matched and arranged between the limiting columns 8, a plurality of stud bolts 9 are arranged on the periphery of the probe template 2, the PCBA template 3 is arranged on the stud bolts 9, the PCBA template 3 is provided with a reference positioning block 10 and a reference positioning hole 11, the substrate 7 is provided with a base 12 matched with the reference positioning hole 11, the base 12 is integrally provided with a guide sleeve 13, the gantry 4 is arranged above the wiring bottom box 1, the downward pressing cylinder 5 is hung on the gantry 4, the pressing plate 6 is hung on the downward pressing cylinder 5 and integrated with a plurality of top columns 14 and guide columns 15, the top columns 14 are matched with the PCBA template 3, the guide columns 15 are aligned with the reference positioning hole 11 and matched with the guide sleeve 13.

[0022] Among them, a plurality of vertical upward buffer springs 16 and spring probes 17 are arranged on the probe template 2, and the top columns 14 are matched around the spring probes 17 in the vertical direction.

[0023] Further, a linear sliding table 18 is installed at the bottom of the wiring bottom box 1, quick clamps 19 are connected in parallel on both sides of the wiring bottom box 1, and electrical connectors 20 matched with the wiring bottom box 1 are arranged at the stroke end of the quick clamps 19.

[0024] Further, the lower end of the lower pressing cylinder 5 is provided with an adapter plate 21, the adapter plate 21 is provided with clamping grooves 22 on both sides, the quick-change mold plate 23 is horizontally inserted into the clamping grooves 22, and the pressing plate 6 is horizontally fixed below the quick-change mold plate 23.

[0025] Further, a plurality of electric element avoiding grooves 24 are formed in the PCBA mold plate 3, a large number of probe holes are formed in the electric element avoiding grooves 24, and a plurality of PCBA positioning pins 25 are arranged on the periphery of the electric element avoiding grooves 24.

[0026] Further, the lower end of the top column 14 is column-shaped or conical, the profile of the lower end of the top column 14 is provided with a chamfer, and all the top columns 14 are arranged on the periphery of the electric element avoiding grooves 24.

[0027] Further, the guide sleeve 13 is offset from the outer edge of the base 12 and forms a step 123, and the step 123 is pressed on the edge of the probe mold plate 17.

[0028] Further, the base plate 7 is provided with P mold plate positioning columns 71, the bottom surface of the PCBA mold plate 3 is provided with insertion grooves corresponding to the P mold plate positioning columns 71, and the probe mold plate 2 is provided with through holes 72 corresponding to the P mold plate positioning columns 71.

[0029] The device is used for FCT testing, and the following process flow is performed: first, the circuit board to be tested is placed on the PCBA mold plate 3, when the lower pressing cylinder 5 is started, the top column 14 descends and presses the circuit board on the PCBA mold plate 3. When the buffer spring 16 is compressed, the spring probe 17 is electrically connected with the circuit board, and the FCT testing process can be started.

[0030] The device provides three-dimensional precise positioning design: not only the probe mold plate 2 (the limiting column 8 is limited), the PCBA mold plate 3 (the screw column 9 is limited), and the pressing plate 6 (the clamping groove 22 is limited) are separately positioned and controlled, but also the base 12 and the guide sleeve 13 are used to improve the positioning accuracy of the pressing plate 6, the probe mold plate 2 and the PCBA mold plate 3, and even the P mold plate positioning column 71 is used to adjust the positioning accuracy between the base plate 7 and the PCBA mold plate 3.

[0031] In summary, the FCT testing device provided by the utility model is used for the high positioning requirement of pins in the circuit board testing process, precise positioning is established among the pressing plate 6, the PCBA mold plate 3, the probe mold plate 2 and the base plate 7 from three dimensions, so that the testing program can be quickly started without manual fine adjustment intervention, and the device has the advantages of simple operation, high positioning accuracy and efficient process.

[0032] The above merely illustrates the embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, are all included in the patent protection scope of the present application.

Claims

1. An FCT test apparatus characterized by comprising: The utility model provides a kind of probe template and PCBA template are matched with the bottom box of wiring, and the bottom box of wiring is provided with the base plate on top, and the base plate is provided with several limit posts, and the limit post is matched with the probe template, and the probe template is provided with several studs on the periphery, and the stud is provided with PCBA template, and the PCBA template is provided with reference positioning block and reference positioning hole, and the base plate is provided with the base of matching reference positioning hole, and the base is integrally formed with guide sleeve, and the bottom box of wiring is provided with gantry directly above, and the gantry is hung with down pressure air cylinder, and the down pressure air cylinder is hung with pressing plate and integrated several top posts and guide posts, and the top post is matched with PCBA template, and the guide post is aligned with reference positioning hole and is matched with the guide sleeve.

2. The FCT test apparatus of claim 1, wherein, The probe template is provided with several vertical upward buffer springs and spring probes, and the top post is matched around the spring probe in vertical direction.

3. The FCT test apparatus of claim 1, wherein, Linear slide is mounted on the bottom of the bottom box of wiring, and the two sides of the bottom box of wiring are connected with quick clamp in parallel, and the stroke end of the quick clamp is provided with electric connector matched with the bottom box of wiring.

4. The FCT test apparatus of claim 1, wherein, The lower end of the down pressure air cylinder is provided with adapter plate, and the adapter plate is provided with clamping groove on both sides, and quick-change template is inserted horizontally in the clamping groove, and the pressing plate is fixed horizontally below quick-change template.

5. The FCT test apparatus of claim 1, wherein, Several electric element avoidance grooves are opened in the PCBA template, a large number of probe holes are opened in the electric element avoidance groove, and several PCBA positioning pins are provided on the periphery of the electric element avoidance groove.

6. The FCT test device of claim 5, wherein, The lower end of the top post is cylindrical or conical, and the profile of the lower end of the top post is provided with chamfer, and all top posts are arranged on the periphery of electric element avoidance groove.

7. The FCT test apparatus of claim 1, wherein, The guide sleeve is misaligned and offset on the outer edge of the base and forms a step, and the step is pressed on the edge of the probe template.

8. The FCT test apparatus of claim 1, wherein, The base plate is provided with P template positioning column, the bottom surface of the PCBA template is provided with slot corresponding to the P template positioning column, and the probe template is provided with via corresponding to the P template positioning column.

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