Radio frequency cable automatic testing device

Abstract

The invention discloses an automatic testing device for a radio frequency cable, which belongs to the field of radio frequency cable component testing, and comprises an automatic measurement and control software module, an automatic screwing mechanism module, a calibration control mechanism module, a control circuit module, a testing instrument and a loading and unloading module. The device can be integrated to a production line for use. The automatic testing device has the advantages that manual operation is realized into automatic operation, so that the testing efficiency and the automation level are improved, and the large-batch, high-requirement and efficient testing production requirements are met.

Description

Technical Field

[0001] The present invention relates to the field of radio frequency cable component testing, and in particular to a radio frequency cable automatic testing device. Background Art

[0002] At present, RF cable assembly testing is generally done manually. The operator manually operates the instrument keyboard to set the instrument, screws the RF cable assembly to the instrument's test interface, manually reads the value tested by the instrument, records it, and manually determines whether the data is within the qualified range. Manual work requires high skills from personnel, and long-term work can easily cause fatigue, pain in the fingers, and easy mistakes. The RF cable automatic test equipment can achieve full automation of test operation and screwing, thereby meeting the needs of large-scale, high-demand, and efficient test production. Summary of the invention

[0003] In view of the problems existing in the above-mentioned background technology, the present invention provides an automatic testing equipment for radio frequency cable components.

[0004] The technical solution of the present invention is achieved in this way:

[0005] An automatic test device for radio frequency cables, comprising a measurement and control module, a screwing mechanism module, a calibration control mechanism module, an industrial camera, a test instrument and a loading and unloading module;

[0006] The screwing mechanism module is used to realize the screwing connection between the connector nuts at both ends of the RF cable assembly and the test instrument interface; the calibration mechanism module is used to complete the calibration action of the instrument before the test operation, and the screwing mechanism module is installed at the execution end of the calibration control mechanism module; the industrial camera is used to realize the reading of the serial barcode of the RF cable assembly itself and record it in the test record table; the test instrument is used to realize the index performance index test of the RF cable assembly and generate test data; the loading and unloading module is used to complete the orderly placement and transmission of the RF cable assembly;

[0007] The measurement and control module is installed in a computer, and the screwing mechanism module, the calibration mechanism module, the industrial camera, the testing instrument and the loading and unloading module are all connected to the computer circuit equipped with the measurement and control module.

[0008] Furthermore, the screwing mechanism module is provided with two groups, and both groups of screwing mechanism modules include a servo motor 2-1, a hollow reducer 2-2, a screwing sleeve 2-3, a proximity sensor 2-5 and a fixing member 2-4;

[0009] The servo motor 2-1 is connected to the screw sleeve 2-3 through the hollow reducer 2-2. The screw sleeve 2-3 is provided with a through hole for the connector nut to slide. The fixing member 2-4 fixes the end of the connecting line of the instrument, and the through hole is opposite to the end of the connector.

[0010] Furthermore, a laser proximity sensor 2-5 is installed on the outer side of the screw sleeve 2-3, and the laser proximity sensor 2-5 is connected to the servo motor.

[0011] Furthermore, the calibration control mechanism module includes an electric rotary module 3-2 and an electric linear module 3-1; the electric rotary module 3-2 is installed above the translational action end of the electric linear module 3-1, and the screwing mechanism module is installed above the rotational action end of the electric rotary module 3-2, for adjusting the position and direction of the screwing entrance.

[0012] Furthermore, the adapter cable of the test instrument is fixed on the fixing part of the screwing mechanism module, and is used to connect the connector nut of the radio frequency cable assembly; the test instrument is connected to the computer via a GPIB signal cable, and the measurement and control module controls the test instrument and collects data.

[0013] Furthermore, the loading and unloading module includes a robot arm 6-1 and a fixture 6-2, the RF cable assembly is placed in the fixture 6-2 in an orderly manner, the RF cable assembly is picked up by the robot arm and the connector nut of the RF cable assembly is sent into the through hole of the screwing mechanism module.

[0014] The advantages of the automatic processing equipment for cable components of the present invention are:

[0015] 1. It runs smoothly, has high precision, good reliability, good consistency, and adopts modular layout, which is easy to assemble. The user-friendly software interface is easy to use and operate.

[0016] 2. This equipment can realize automatic testing of RF cable components, which greatly improves the testing efficiency compared with traditional manual operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is an overall structural diagram of an automatic testing equipment for radio frequency cable components of the present invention;

[0018] Figure 2 It is an interface element of an automatic measurement and control software module of an automatic test equipment for a radio frequency cable assembly of the present invention;

[0019] Figure 3 This is a view of an automatic screwing mechanism module of an automatic testing equipment for radio frequency cable components of the present invention;

[0020] Figure 4 A diagram of a calibration control mechanism of an automatic test equipment for radio frequency cable components of the present invention;

[0021] Figure 5 This is an overall view of a calibration control mechanism and a screwing mechanism of an automatic testing device for a radio frequency cable assembly of the present invention;

[0022] Figure 6 This is a view of a loading and unloading module of an automatic testing device for radio frequency cable components of the present invention; DETAILED DESCRIPTION

[0023] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] The RF cable automatic testing equipment is mainly divided into 6 parts, namely automatic measurement and control software module 1, automatic screwing mechanism module 2, calibration control mechanism module 3, industrial camera, testing instrument 5, loading and unloading module 6. The equipment has a single-station desktop layout, which can be used as a single machine or integrated into a production line.

[0025] The automatic measurement and control software module 1 is installed in a computer, and the automatic screwing mechanism module 2, the calibration control mechanism module 3, the test instrument 5, and the loading and unloading module 6 are controlled and coordinated through the control circuit. Its main functions include data acquisition, qualified judgment, generation of data record table, external device control, etc. of the test instrument. The automatic screwing mechanism module 2 realizes the automatic screwing connection between the connector nuts at both ends of the RF cable assembly and the instrument interface. The calibration control mechanism module 3 completes the calibration action of the instrument before the test operation. The industrial camera realizes the reading of the number barcode of the RF cable assembly itself and records it in the test record table. The test instrument 5 realizes the index performance index test of the RF cable assembly, generates test data, and is controlled and collected by the automatic measurement and control software module 1. The loading and unloading module 6 completes the orderly placement and transmission of the RF cable assembly. The equipment is driven by pneumatic and electric methods, and all modules are connected to the computer host by data cables and coordinated by the automatic measurement and control software module 1.

[0026] The automatic screwing mechanism module 2 includes but is not limited to a servo motor 2-1, a hollow reducer 2-2, a screwing sleeve 2-3, a proximity sensor 2-5, and a fixing 2-4. The servo motor 2-1 is connected to the screwing sleeve 2-3 through the hollow reducer 2-2, the center of the hollow reducer 2-2 is installed with the connecting wire end of the instrument, and the fixing 2-4 fixes the connecting wire end of the instrument. The servo motor 2-1 drives the screwing sleeve 2-3, and a laser proximity sensor 2-5 is installed on the outside of the screwing sleeve 2-3. When the RF cable assembly approaches the entrance of the screwing sleeve, the proximity sensor detects the end of the RF cable assembly of the obstruction, and the driver of the servo motor controls the rotation of the servo motor. Since the servo motor is in torque mode, the motor automatically stops after the selected torque reaches the set value. When the motor reversal command is received, the motor can reverse, unscrew the RF cable assembly, and realize tightening connection and screwing. Two sets of automatic screwing mechanism modules 2 are required in this equipment.

[0027] The calibration control mechanism module 3 includes an electric rotary module 3-2 and an electric linear module 3-1. The automatic screwing mechanism module 2 is located above the calibration control mechanism module 3 to adjust the direction and position of the screwing inlet. The electric rotary module 3-2 is installed above the slider of the electric linear module 3-1, and the automatic screwing mechanism module 2 is installed above the electric rotary module 3-2 to adjust the direction and position of the screwing inlet. The action of selection and linear displacement is completed.

[0028] The adapter cable of the test instrument 5 is fixed to the automatic screwing mechanism module 2, which is used to connect the instrument and the end of the RF cable assembly. The test instrument 5 is connected to the computer host through a GPIB signal cable, and the automatic measurement and control software module 1 controls the test instrument 5 and collects data.

[0029] The loading and unloading module 6 includes but is not limited to a robot arm 6-1 and a fixture 6-2, and the RF cable assembly is placed in the fixture 6-2 in an orderly manner, and the robot arm picks up and sends the end of the RF cable assembly to the entrance of the automatic screwing mechanism module 2. The robot arm is controlled by an automatic measurement and control software module 1.

[0030] Furthermore, the loading and unloading module 6 can use a visual system to visually locate and pick up the tooling;

[0031] Reference Figure 1 The RF cable assembly automatic test equipment consists of 6 parts, namely, automatic measurement and control software module 1, automatic screwing mechanism module 2, calibration control mechanism module 3, industrial camera, test instrument 5, loading and unloading module 6. The equipment is a single-station desktop layout, which can be used as a single machine or integrated into a production line.

[0032] Reference Figure 2 The automatic measurement and control software module 1 includes a functional module for controlling the test instrument and the automatic screwing mechanism module, realizes the control of the motors in the test instrument and the automatic screwing mechanism module, and reads the test data of the test instrument to generate an electronic record sheet.

[0033] Reference Figure 3 The automatic screwing mechanism module 2 is composed of a servo motor 2-1, a hollow reducer 2-2, a screwing sleeve 2-3 and a proximity sensor 2-5. The servo motor 2-1 is integrated with the screwing sleeve 2-3 through the hollow reducer 2-2, and the servo motor drives the hollow reducer and the screwing sleeve. The proximity sensor 2-5 is a laser tube from top to bottom.

[0034] The proximity sensor may be a Hall sensor and the test instrument is a vector network analyzer AV3629.

[0035] Reference Figure 4 , Figure 5The calibration control mechanism module 3 is composed of two electric rotating modules 3-2 and one electric linear motion module 3-1. The automatic screwing mechanism module 2 is installed above the calibration control mechanism module 3 to change its inlet direction. One of the electric rotating modules 3-2 is installed on the slider of the linear motion module 3-1 to change the position and direction of the automatic screwing mechanism module 2. It is suitable for the calibration operation of the instrument.

[0036] The further rotating module can be realized by a pneumatic rotating cylinder. The electric linear motion module can be realized by a screw mechanism, which is common knowledge and will not be described in detail.

[0037] Reference Figure 6 The loading and unloading module 6 is composed of a robot arm 6-1 and a fixture 6-2. The RF cable components are neatly placed on the tooling, picked up one by one by the robot arm, and sent to the entrance of the automatic screwing mechanism module 2 to complete the automatic loading. After the system test is completed, the robot arm 6-1 is removed from the entrance of the automatic screwing mechanism module 2 and placed in the finished product area.

[0038] A more specific method of use of this embodiment is to open the automatic measurement and control software, enter the calibration interface, calibrate the instrument, connect the calibration control mechanism module during the calibration process and calibrate the instrument. After the calibration is completed, enter the test interface, enter the necessary task information, start the single machine, place the RF cable assembly on the tooling of the loading and unloading module, the industrial camera detects the serial barcode of the RF cable assembly itself, and records it in the test record table. The automatic test software module controls the mechanical arm to send the RF cable assembly into the screwing inlet, and screws the connectors at both ends of the cable assembly to the instrument. The test instrument generates and stores the test data in the test record table of the automatic measurement and control software module. After the test is completed, the automatic control screws the two ends of the cable assembly, and the mechanical arm automatically removes it and places it in the test completion area.

[0039] The above is only an embodiment of the invention, but the invention is not limited to the embodiment. Those skilled in the art can make various equivalent modifications or substitutions without violating the spirit and principle of the invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A radio frequency cable automatic testing device, characterized in that: It includes a measurement and control module, a screwing mechanism module, a calibration control mechanism module, an industrial camera, a testing instrument and a loading and unloading module (6); The screwing mechanism module is used to realize the screwing connection between the connector nuts at both ends of the RF cable assembly and the test instrument interface; the calibration mechanism module is used to complete the calibration action of the instrument before the test operation, and the screwing mechanism module is installed at the execution end of the calibration control mechanism module; the industrial camera is used to realize the reading of the serial barcode of the RF cable assembly itself and record it in the test record table; the test instrument is used to realize the index performance index test of the RF cable assembly and generate test data; the loading and unloading module is used to complete the orderly placement and transmission of the RF cable assembly; The measurement and control module is installed in a computer, and the screwing mechanism module, the calibration mechanism module, the industrial camera, the testing instrument and the loading and unloading module are all connected to the computer circuit equipped with the measurement and control module.

2. The radio frequency cable automatic testing device according to claim 1, characterized in that: The screwing mechanism modules are provided with two groups, and both groups of screwing mechanism modules include a servo motor (2-1), a hollow reducer (2-2), a screwing sleeve (2-3), a proximity sensor (2-5) and a fixing member (2-4); The servo motor (2-1) is connected to the screw sleeve (2-3) via a hollow reducer (2-2); the screw sleeve (2-3) is provided with a through hole for the connector nut to slide; the fixing member (2-4) fixes the end of the connecting line of the instrument, and the through hole faces the end of the connector.

3. The radio frequency cable automatic testing device according to claim 2, characterized in that: A laser proximity sensor (2-5) is installed on the outer side of the screwing sleeve (2-3), and the laser proximity sensor (2-5) is connected to the servo motor.

4. The radio frequency cable automatic testing device according to claim 1, characterized in that: The calibration control mechanism module comprises an electric rotary module (3-2) and an electric linear module (3-1); the electric rotary module (3-2) is mounted above the translational action end of the electric linear module (3-1), and the screwing mechanism module is mounted above the rotational action end of the electric rotary module (3-2) for adjusting the position and direction of the screwing entrance.

5. The radio frequency cable automatic testing device according to claim 1, characterized in that: The adapter cable of the test instrument is fixed to the fixing part of the screwing mechanism module and is used to connect the connector nut of the radio frequency cable assembly; The test instrument is connected to the computer via a GPIB signal cable, and the measurement and control module controls the test instrument and collects data.

6. The radio frequency cable automatic testing device according to claim 1, characterized in that: The loading and unloading module comprises a mechanical arm (6-1) and a fixture (6-2), the radio frequency cable assembly is placed in the fixture (6-2) in an orderly manner, the radio frequency cable assembly is picked up by the mechanical arm and the connector nut of the radio frequency cable assembly is sent into the through hole of the screwing mechanism module.

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