Automatic testing device for screening clamp

Abstract

The utility model discloses an automatic testing device for a screening clamp, relates to the technical field of electronic component clamp detection, solves the problems that the existing screening clamp is low in detection efficiency and has the possibility of missing detection, and adopts the technical scheme that the automatic testing device comprises an operating platform, an electrical cabinet and a display control array, a detection area is arranged on the table top of the operation table, a plurality of detection probes are arranged in the detection area, and the detection probes are used for being in contact with clamp probes of all stations of a screening clamp; the electrical cabinet is provided with a detection circuit, the detection circuit comprises a plurality of detection sub-circuits, and each detection sub-circuit is connected with a corresponding detection probe; the display control array is connected with each detection sub-circuit and is used for displaying whether each station of the screening clamp is normal or not; all the stations on the screening clamp are detected through cooperation of the display control array, the operation table and the electrical cabinet, and unqualified stations are displayed through the display control array.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic component clamp detection technical field, more specifically, it relates to a screening clamp automatic testing device. BACKGROUND

[0002] At present, the chip capacitor product mainly adopts 405 needle screening clamp to carry out product screening. Before screening product by screening clamp, screening clamp needs to be detected to determine whether each detection station is normal. The existing screening clamp detection is mainly carried out by manual, and the detection efficiency is very low and there may be the possibility of missed detection. The detection clamp with indicator light is also used, and the indicator light of the detection clamp is installed above the probe. When the detection clamp is fixed with the screening clamp, the indicator light above the detection clamp probe is often blocked by the screening clamp, so that whether the screening clamp is qualified cannot be determined in time, and the unqualified part cannot be replaced in time, so the detection efficiency is low.

[0003] Therefore, the screening clamp automatic testing device is provided to solve the above problems. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the present application is the low efficiency and the possibility of missed detection of the existing screening clamp detection. The purpose is to provide a screening clamp automatic testing device, which detects each station on the screening clamp at the same time through the cooperation of the display control array, operation table and electrical cabinet. The unqualified station is displayed through the display control array. Further, the product to be tested can be installed on the screening clamp to detect the product, and the waste position is displayed through the display control array.

[0005] The present application is realized by the following technical solutions:

[0006] A screening clamp automatic testing device, comprising: an operation table, an electrical cabinet and a display control array; a detection area is arranged on the table top of the operation table, a plurality of detection probes are arranged in the detection area, and the detection probes are used to contact the clamp probes of each station of the screening clamp; the electrical cabinet is provided with a detection circuit, the detection circuit comprises a plurality of detection sub-circuits, each detection sub-circuit is connected with a corresponding detection probe; the display control array is connected with each detection sub-circuit, and is used to display whether each station of the screening clamp is normal.

[0007] By the above technical scheme, the testing device can detect all stations of the screening clamp before the screening clamp loads the product for production, and display the unqualified station on the display control array, and replace the fuse resistor of the unqualified station. The testing device can also detect the product on the screening clamp after the screening clamp loads the product, and display the waste position on the display control array, and remove the waste.

[0008] Further, the detection area is provided with a plurality of positioning pins, which are used to ensure that the detection probe of the operation table top is aligned with the clamp probe of the screening clamp.

[0009] Further, the detection area is in a rectangular shape, and the positioning pins are arranged at four corners and a middle position of the detection area.

[0010] Further, the non-detection area of the operation table top is provided with a fixing clamp, which is used to abut the clamp probe of the screening clamp against the detection probe of the operation table top.

[0011] Further, the fixing clamp is 2, and the two fixing clamps are arranged on opposite sides of the detection area.

[0012] Further, the display control array comprises a plurality of indicator lights arranged in an array, and each indicator light is connected with a corresponding detection sub-circuit.

[0013] Further, the indicator light of the display control array corresponds to the clamp probe of the screening clamp.

[0014] Further, the indicator light is provided with a number, and the number is consistent with the number of the clamp probe.

[0015] Further, the detection sub-circuit comprises a current-limiting resistor and a plurality of operational amplifiers; one end of the current-limiting resistor is connected with the corresponding detection probe, and the other end is connected with the operational amplifier for voltage amplification; and the output of the operational amplifier is connected with the indicator light of the display control array through a diode.

[0016] Further, the operational amplifier is connected with a 24V power supply.

[0017] Compared with the prior art, the automatic testing device has the following beneficial effects: the automatic testing device is used to detect the loop connected with the detection probe of each station of the screening clamp, to determine whether each station of the screening clamp is normally turned on, so as to prevent the product from being screened due to the abnormal station; the automatic testing device is used to detect the screening clamp loaded with the product, to determine whether the product of each station is qualified, and the detected waste product is displayed through the display control array, so that the operator can remove the waste product according to the display of the display control array; the automatic testing device is rapid and accurate in detection, can realize waste product detection and clamp station detection, and can display the position of the unqualified station, so as to facilitate the operator to timely locate and replace, and improve the screening clamp detection and replacement efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings used to provide further understanding of the embodiments of the present application and form a part of the present application, and do not constitute a limitation to the embodiments of the present application. In the drawings:

[0019] Figure 1 The structural schematic diagram of the detection area of the operation table is provided for an embodiment of the present application.

[0020] Figure 2 The structural schematic diagram of the operation table fixing clamp is provided for an embodiment of the present application.

[0021] Figure 3 The schematic diagram of the display control array is provided for an embodiment of the present application.

[0022] Figure 4 The connection schematic diagram of the detection sub-circuit and the indicator light is provided for an embodiment of the present application. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the present application more clear, specific embodiments and drawings are used to make further detailed description of the present application. The schematic embodiments and the description thereof are used to explain the present application, and are not used to limit the present application.

[0024] Please refer to Figures 1-4 The present application provides a screening clamp automatic testing device, which comprises an operation table, an electrical cabinet and a display control array. A detection area is arranged on the table top of the operation table, and a plurality of detection probes are arranged in the detection area. The detection probes are used to contact the clamp probes of each station of the screening clamp. The electrical cabinet is provided with a detection circuit, which comprises a plurality of detection sub-circuits. Each detection sub-circuit is connected with a corresponding detection probe. The display control array is connected with each detection sub-circuit, and is used to display whether each station of the screening clamp is normal.

[0025] It should be noted that the screening clamp has a plurality of stations, and each station has a clamp probe. Each clamp probe is connected with a test voltage through a fuse resistor.

[0026] Specifically, when the screening clamp is tested, the screening clamp is fixed to the detection area of the operation table, so that the clamp probes are aligned with the detection probes one by one, and abut against the clamp probes and the detection probes. A test voltage is provided to each station of the screening clamp. The test voltage passes through the fuse resistor to the clamp probe. If the test voltage is received by the detection probe in contact with the clamp probe, it indicates that the station loop is normal. If the test voltage cannot be received by the detection probe in contact with the clamp probe, it indicates that the station loop is abnormal, and the fuse resistor of the station needs to be replaced. At the same time, each detection sub-circuit in the detection circuit receives the level signal on the detection probe connected therewith and sends it to the display control array. The display control array displays the indicator light according to the level signal of each station, so that the abnormal station position can be quickly located. Furthermore, the product can be loaded on the clamp probe of the screening clamp, and the screening clamp after loading the product is tested to locate the waste product position.

[0027] The improvement of the scheme is that, in view of the problems of low efficiency and possible missed detection of the existing screening fixture detection, the scheme provides a screening fixture automatic detection device, which can detect all stations of the screening fixture before the screening fixture is loaded with products, and display unqualified stations on a display control array to guide an operator to replace the corresponding station's fuse resistor. Meanwhile, the screening fixture loaded with products can be detected, and the waste product position is displayed on the display screen to guide the operator to remove the waste product.

[0028] Please refer to Figure 1 The table top of the operation table is divided into a detection area (as shown in Figure 1 ) and a non-detection area.

[0029] As a possible implementation manner, the detection area is provided with a plurality of positioning pins for ensuring that the detection probes of the operation table top are in one-to-one alignment with the fixture probes of the screening fixture. Further, the detection area is in a rectangular shape, and the positioning pins are arranged at the four corners and the middle position of the detection area.

[0030] Specifically, the screening fixture has positioning holes corresponding to the positioning pins, and the screening fixture is fixed on the detection area of the operation table top through the cooperation of the positioning holes and the positioning pins, so that the fixture probes are in one-to-one alignment with the detection probes.

[0031] As a possible implementation manner, the non-detection area of the operation table top is provided with a fixed fixture, such as Figure 2 . The fixed fixture is used to abut the fixture probes of the screening fixture against the detection probes of the operation table top. Further, the fixed fixture is 2, and the two fixed fixtures are arranged on opposite sides of the detection area.

[0032] Specifically, for a 405-pin screening fixture, the detection area of the operation table can be provided with 405 gold-plated detection probes, which are adapted in position and size to the fixture probes. Five positioning pins are arranged at the four corners and the middle of the detection area of the operation table, for ensuring that the fixture probes correspond to the detection probes one by one. Two fixed fixtures are installed on the left and right sides of the detection area of the operation table, and the fixed fixtures can adopt horizontal clamps of quick clamps, which are used to lock the screening fixture to the operation table and ensure that the fixture probes abut against the detection probes one by one.

[0033] Please refer to Figure 3 , which is a schematic view of the display control array. Figure 3

[0034] As a possible implementation manner, the display control array includes a plurality of indicator lights arranged in an array, and each indicator light is connected with a corresponding detection sub-circuit.

[0035] ​Further, the indicator light of the display control array corresponds to the clamp probe of the screening clamp one by one.

[0036] Further, the indicator light is provided with a number, which is consistent with the number of the clamp probe.

[0037] Specifically, the display control array connects the detection sub-circuit with the indicator light, controls the lighting of the indicator light according to the voltage output by the detection sub-circuit, and further judges whether each station and the product of the station are qualified. When the voltage value output by the detection sub-circuit is higher than the turn-on threshold of the indicator light, the indicator light is lit, indicating that the station corresponding to the detection sub-circuit is qualified, and when the voltage value is lower than the turn-on threshold of the indicator light, the indicator light is extinguished, indicating that the corresponding station is unqualified. Each indicator light is consistent with the array position and number of the clamp probe, facilitating quick positioning of unqualified stations and station products.

[0038] Please refer to Figure 4 . Figure 4 The connection diagram of the detection sub-circuit and the indicator light is shown. The electrical cabinet includes a detection circuit, and the detection circuit includes a plurality of detection sub-circuits. One detection sub-circuit is connected with one detection probe to monitor whether the screening clamp station connected with the detection probe is normally turned on.

[0039] As a possible implementation manner, the detection sub-circuit includes a current-limiting resistor and a plurality of operational amplifiers; one end of the current-limiting resistor is connected with the corresponding detection probe, and the other end is connected with the operational amplifier for voltage amplification; and the output of the operational amplifier is connected with the indicator light of the display control array through a diode.

[0040] Further, the operational amplifier is connected with a 24V power supply.

[0041] Specifically, the detection voltage of the screening clamp adopts 24VDC direct current voltage. After the clamp probe of the screening clamp and the detection probe of the operation table are locked by the fixed clamp, the probe is connected, the voltage signal is received at the input end of the detection sub-circuit, the voltage is amplified through the built-in operational amplifier, the current conduction direction is controlled through the built-in diode, and the amplified voltage signal is transmitted to the display control array to light up the corresponding indicator light in the display control array.

[0042] In addition, the display control array can also be realized by a touch screen. Whether the voltage of each station loop is qualified is judged by a set voltage threshold, and if qualified, a green light is displayed on the touch screen, and if unqualified, a red light is displayed on the touch screen. Each indicator light is provided with a number, which is consistent with the number and position of the probe on the clamp, facilitating determination of unqualified channels of the clamp. Meanwhile, the product batch number and the number of waste products can be recorded and stored for subsequent product traceability.

[0043] It should be noted that the test device provided by the scheme detects each work station loop on the screening clamp, judges whether each work station loop on the screening clamp is normal, prevents product screening from being missed due to abnormal work station loop, and after the abnormality of the work station of the screening clamp is excluded, the product can be loaded for testing, the indicator light of the display control array is lit, and whether the product of each work station is qualified is judged. The operator can locate the abnormal work station and the product of the work station according to the indicator light of the display control array. The detection device has high detection accuracy, can realize waste product detection and clamp detection, can display the position of the unqualified work station, facilitates the operator to timely locate and replace, and improves the screening clamp detection and replacement efficiency.

[0044] The above specific embodiments further specifically explain the purpose, technical scheme and beneficial effects of the utility model, and it should be understood that the above description is only a specific embodiment of the utility model, and is not used to limit the protection scope of the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A screening fixture automatic testing apparatus characterized by comprising: The utility model relates to a screening fixture detection device, including: Operation platform, electrical cabinet and display control array; The detection area is arranged on the table top of the operation platform, and a plurality of detection probes are arranged in the detection area, which are used for contacting with the clamp probes of each work position of the screening fixture; The electrical cabinet is provided with a detection circuit, and the detection circuit comprises a plurality of detection sub-circuits, each of which is connected with a corresponding detection probe; The display control array is connected with each detection sub-circuit and is used for displaying whether each work position of the screening fixture is normal.

2. The screening fixture automatic testing apparatus according to claim 1, wherein The detection area is provided with a plurality of positioning pins, which are used to ensure that the detection probes of the operation platform table top and the clamp probes of the screening fixture are one-to-one aligned.

3. The screening fixture automatic testing apparatus according to claim 2, wherein The detection area is rectangular, and the positioning pins are arranged at the four corners and the middle position of the detection area.

4. The screening clamp automatic testing apparatus according to claim 1, wherein The non-detection area of the operation platform table top is provided with a fixed clamp, which is used for abutting the clamp probe of the screening fixture against the detection probe of the operation platform table top.

5. The screening clamp automatic test device of claim 4, wherein, The fixed clamp is 2, and the two fixed clamps are arranged on the opposite sides of the detection area.

6. The screening fixture automatic testing apparatus according to claim 1, wherein The display control array comprises a plurality of indicator lights arranged in an array, and each indicator light is connected with a corresponding detection sub-circuit.

7. An automatic test apparatus for screening a test fixture according to claim 6, wherein The indicator light of the display control array corresponds to the clamp probe of the screening fixture one by one.

8. The screening clamp automatic test device of claim 7, wherein, The indicator light is provided with a number, and the number is consistent with the number of the clamp probe.

9. The screening clamp automatic test device of claim 6, wherein, The detection sub-circuit comprises a current-limiting resistor and a plurality of operational amplifiers; One end of the current-limiting resistor is connected with the corresponding detection probe, and the other end is connected with the operational amplifier for voltage amplification, and the output of the operational amplifier is connected with the indicator light of the display control array through a diode.

10. The screening clamp automatic test device of claim 9, wherein, The operational amplifier is connected with a 24V power supply.

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