Radio frequency cable automatic testing device

Abstract

The utility model discloses an automatic testing device for a radio frequency cable, which belongs to the testing field of radio frequency cable components 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 feeding and discharging module. The device can be integrated to a production line for use. The utility model has the advantages that the automatic operation is realized by manual operation, so that the test efficiency and the automation level are improved, and the large-batch, high-requirement and high-efficiency test production requirements are met.

Description

Technical Field

[0001] This utility model relates to the field of radio frequency cable assembly testing, and more specifically, to an automatic testing equipment for radio frequency cables. Background Technology

[0002] Currently, RF cable assembly testing is generally done manually. Operators manually operate the instrument's keyboard to set up the instrument, screw the RF cable assembly onto the instrument's test interface, manually read and record the measured values, and manually judge whether the data is within the acceptable range. Manual operation requires a high level of skill, and prolonged operation can easily lead to fatigue, finger pain, and errors. Automated RF cable testing equipment can achieve full automation of testing operations and screwing, thereby meeting the needs of high-volume, high-requirement, and high-efficiency testing production. Utility Model Content

[0003] In view of the problems existing in the above-mentioned background technology, this utility model proposes an automatic testing equipment for radio frequency cable assemblies.

[0004] The technical solution of this utility model is implemented as follows:

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

[0006] The screwing mechanism module is used to screw the connector nuts at both ends of the RF cable assembly to the interface of the testing instrument; the calibration mechanism module is used to perform calibration of the instrument before testing, and the screwing mechanism module is installed at the execution end of the calibration control mechanism module; the industrial camera is used to read the serial number barcode of the RF cable assembly itself and record it in the test record table; the testing instrument is used to perform performance tests on the RF cable assembly and generate test data; the loading and unloading module is used to complete the orderly placement and transportation of the RF cable assembly.

[0007] The measurement and control module is mounted in the computer, and the screwing mechanism module, calibration mechanism module, industrial camera, testing instruments and loading / unloading module are all connected to the computer circuitry of the measurement and control module.

[0008] Furthermore, the screwing mechanism module is provided in two sets, and each set of screwing mechanism modules includes a servo motor 2-1, a hollow reducer 2-2, a screwing sleeve 2-3, a proximity sensor 2-5, and a fixing part 2-4;

[0009] The servo motor 2-1 is connected to the screwing sleeve 2-3 via the hollow reducer 2-2. The screwing 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 instrument's connecting wire, and the through hole is directly opposite the end of the connector.

[0010] Furthermore, a laser proximity sensor 2-5 is installed on the outside of the screwing 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 operation end of the electric linear module 3-1, and the screwing mechanism module is installed above the rotational operation end of the electric rotary module 3-2 for adjusting the position and direction of the screwing inlet.

[0012] Furthermore, 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 through the 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 robotic arm 6-1 and a clamp 6-2. The radio frequency cable assembly is placed in the clamp 6-2 in an orderly manner. The robotic arm picks up the radio frequency cable assembly and sends the connector nut of the radio frequency cable assembly into the through hole of the screwing mechanism module.

[0014] The advantages of this automatic cable assembly processing equipment are as follows:

[0015] 1. It operates smoothly, with high precision, good reliability, and good consistency. Its modular layout makes it easy to assemble. The user-friendly software interface is easy to operate.

[0016] 2. This equipment can automatically test radio frequency cable assemblies, which greatly improves testing efficiency compared to traditional manual operations. Attached Figure Description

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

[0018] Figure 2 The interface elements of the automatic measurement and control software module of the automatic testing equipment for radio frequency cable assemblies of this utility model are shown.

[0019] Figure 3 This is a view of the automatic screwing mechanism module of an automatic testing equipment for radio frequency cable assemblies according to this utility model;

[0020] Figure 4 This is a view of the calibration control mechanism of an automatic testing equipment for radio frequency cable assemblies according to the present invention;

[0021] Figure 5 This is an overall view of the calibration control mechanism and the screwing mechanism of an automatic testing equipment for radio frequency cable assemblies according to this utility model.

[0022] Figure 6 This is a view of the loading and unloading module of an automatic testing equipment for radio frequency cable assemblies according to this utility model; Detailed Implementation

[0023] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0024] The automatic testing equipment for radio frequency cables is mainly composed of 6 parts: automatic measurement and control software module 1, automatic screwing mechanism module 2, calibration control mechanism module 3, industrial camera, testing instrument 5, and loading and unloading module 6. The equipment has a single-station desktop layout, which can be used as a standalone machine or integrated into the production line.

[0025] The automatic measurement and control software module 1 is installed in the computer and controls and coordinates the automatic screwing mechanism module 2, calibration control mechanism module 3, testing instrument 5, and loading / unloading module 6 through control circuits. Its main functions include data acquisition from the testing instrument, pass / fail judgment, generation of data record sheets, and control of external devices. The automatic screwing mechanism module 2 automatically screws the connector nuts at both ends of the RF cable assembly to the instrument interface. The calibration control mechanism module 3 performs calibration of the instrument before testing. The industrial camera reads the barcode number of the RF cable assembly and records it in the test record sheet. The testing instrument 5 tests the performance indicators of the RF cable assembly, generates test data, and the data is controlled and collected by the automatic measurement and control software module 1. The loading / unloading module 6 arranges and transports the RF cable assembly in an orderly manner. This equipment is driven by pneumatic and electric power, and all modules are connected to the computer host via data cables and are coordinated and controlled by the automatic measurement and control software module 1.

[0026] The automatic screw-tightening mechanism module 2 includes, but is not limited to, a servo motor 2-1, a hollow reducer 2-2, a screw-tightening sleeve 2-3, a proximity sensor 2-5, and a fixing component 2-4. The servo motor 2-1 is connected to the screw-tightening sleeve 2-3 via the hollow reducer 2-2. The instrument's connection cable end is mounted at the center of the hollow reducer 2-2, and the fixing component 2-4 secures the instrument's connection cable end. The servo motor 2-1 drives the screw-tightening sleeve 2-3. A laser proximity sensor 2-5, including but not limited to, is installed on the outside of the screw-tightening sleeve 2-3. When the RF cable assembly approaches the inlet of the screw-tightening sleeve, the proximity sensor detects the obstruction at the end of the RF cable assembly, and the servo motor driver controls the servo motor to rotate. Since the servo motor is in torque mode, it automatically stops after the selected torque reaches the set value. Upon receiving a motor reverse command, the motor can reverse, unscrewing the RF cable assembly to achieve tightening and feeding. This equipment requires two sets of automatic screw-tightening mechanism modules 2.

[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 and is used to adjust the direction and position of the screwing inlet. The electric rotary module 3-2 is mounted above the slider of the electric linear module 3-1, and the automatic screwing mechanism module 2 is mounted above the electric rotary module 3-2 to adjust the direction and position of the screwing inlet. This completes the optional and linear displacement actions.

[0028] The adapter cable of the test instrument 5 is fixed to the automatic screw-on mechanism module 2 for connecting the instrument and the RF cable assembly. The test instrument 5 is connected to the computer host via a GPIB signal cable, and the automatic measurement and control software module 1 controls the test instrument 5 and collects data.

[0029] The loading / unloading module 6 includes, but is not limited to, a robotic arm 6-1 and a clamp 6-2. The RF cable assemblies are arranged in an orderly manner in the clamp 6-2, and the robotic arm picks them up and feeds the ends of the RF cable assemblies into the inlet of the automatic screwing mechanism module 2. The robotic arm is controlled by an automatic measurement and control software module 1.

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

[0031] Reference Figure 1 The automated testing equipment for RF cable assemblies consists of six parts: an automated measurement and control software module 1, an automated screw-on mechanism module 2, a calibration control mechanism module 3, an industrial camera and testing instruments module 5, and a loading and unloading module 6. This equipment features a single-station desktop layout, suitable for standalone use or integration into a production line.

[0032] Reference Figure 2 The automatic measurement and control software module 1 includes functional modules for controlling the testing instrument and the automatic screwing mechanism module, realizing the control of the motor in the testing instrument and the automatic screwing mechanism module, and reading the test data of the testing instrument to generate an electronic record sheet.

[0033] Reference Figure 3 The automatic screwing mechanism module 2 consists 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 via the hollow reducer 2-2, and the servo motor drives both the hollow reducer and the screwing sleeve. The proximity sensor 2-5 consists of through-beam laser tubes from top to bottom.

[0034] The proximity sensor can be a Hall sensor. The testing instrument is an AV3629 vector network analyzer.

[0035] Reference Figure 4 , Figure 5The calibration control module 3 consists of two electrically driven rotary modules 3-2 and one electrically driven linear motion module 3-1. An automatic screw-in mechanism module 2 is mounted above the calibration control module 3 to change its inlet direction. One of the electrically driven rotary modules 3-2 is mounted on the slider of the linear motion module 3-1 to change the position and orientation of the automatic screw-in mechanism module 2. This is suitable for instrument calibration operations.

[0036] Further rotary modules can be implemented using pneumatic rotary cylinders. Electric linear motion modules can be implemented using lead screw mechanisms; this is common knowledge and will not be elaborated further.

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

[0038] A more specific method of use in this embodiment is as follows: Open the automatic measurement and control software, enter the calibration interface, and calibrate the instrument. During the calibration process, connect to the calibration control module and perform instrument calibration. After calibration, enter the test interface, input the necessary task information, start the machine, place the RF cable assembly on the tooling of the loading and unloading module, the industrial camera detects the serial number barcode of the RF cable assembly itself and records it in the test record table, the automatic test software module controls the robotic arm to send the RF cable assembly into the screwing inlet, 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 automatically screws the two ends of the cable assembly, and the robotic arm automatically removes it and places it in the test completion area.

[0039] The above description is merely an embodiment of the present invention, but the present invention is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit and principles of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. An automatic testing device for radio frequency cables, characterized in that: It includes a measurement and control module, a screwing mechanism module, a calibration control mechanism module, an industrial camera, testing instruments, and a loading and unloading module (6). The screwing mechanism module is used to screw the connector nuts at both ends of the RF cable assembly to the interface of the testing instrument; the calibration control mechanism module is used to perform calibration actions on the instrument before testing, and the screwing mechanism module is installed at the execution end of the calibration control mechanism module; the industrial camera is used to read the serial number barcode of the RF cable assembly itself and record it in the test record table; the testing instrument is used to perform performance tests on the RF cable assembly and generate test data; the loading and unloading module is used to complete the orderly placement and transportation of the RF cable assembly. The measurement and control module is mounted in the computer, and the screwing mechanism module, calibration control mechanism module, industrial camera, testing instrument and loading / unloading module are all connected to the computer circuitry of the measurement and control module.

2. The automatic testing device for radio frequency cables according to claim 1, characterized in that, The screwing mechanism module is provided in two sets. Each set of screwing mechanism modules includes a servo motor (2-1), a hollow reducer (2-2), a screwing sleeve (2-3), a proximity sensor (2-5), and a fixing part (2-4). The servo motor (2-1) is connected to the screwing sleeve (2-3) via the hollow reducer (2-2). The screwing sleeve (2-3) has a through hole for the connector nut to slide. The fastener (2-4) fixes the end of the instrument's connecting wire, with the through hole facing the end of the connector.

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

4. The automatic testing device for radio frequency cables according to claim 1, characterized in that, 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 operation end of the electric linear module (3-1), and the screwing mechanism module is installed above the rotational operation end of the electric rotary module (3-2) for adjusting the position and direction of the screwing inlet.

5. The automatic testing device for radio frequency cables 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 testing instrument is connected to the computer via a GPIB signal cable, and the measurement and control module controls the testing instrument and collects data.

6. The automatic testing device for radio frequency cables according to claim 1, characterized in that, The loading and unloading module includes a robotic 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 robotic arm picks up the radio frequency cable assembly and sends the connector nut of the radio frequency cable assembly into the through hole of the screwing mechanism module.

Images