Test stand for servo control box

Abstract

The utility model provides a test bench used for a servo control box, comprising an upper computer used for completing data processing and analysis of collected signals; the lower computer is electrically connected with the upper computer, and the lower computer is used for collecting data information of the tested object according to an instruction of the upper computer and transmitting a collection result to the upper computer; the power supply module is electrically connected with the upper computer and the lower computer, and the power supply module is used for providing matched working voltage for the upper computer and the lower computer, can read acquired data information, and calls fault diagnosis information to diagnose and position faults at the same time; and the data information is analyzed, stored and displayed in real time to form a conclusion. Operators can check test data and diagnosis results on site through the touch display screen, and can also output diagnosis conclusions through an external printer.

Description

TECHNICAL FIELD

[0001] The utility model relates to control machine case test technical field especially relates to a kind of test test bench for servo control box. BACKGROUND

[0002] The test equipment specially used for the servo controller machine case is single and dispersed when realizing the input and output and conditioning of voltage signal, speed feedback signal and acceleration feedback signal, and the corresponding hardware equipment is in monolithic state, software cannot be integrated and unified, and the line is complex, operation is tedious, instruction and statistical data are single, cannot satisfy the requirement of on-site detection and storage management.

[0003] Therefore, it is necessary to provide a test test bench for servo control box to overcome the above defects. UTILITY MODEL CONTENT

[0004] The utility model discloses a kind of test test benches for servo control box, can read the data information collected, simultaneously call fault diagnosis information to carry out the diagnosis and positioning of fault, and real-time analysis, storage, display and form conclusion to data information. Operating personnel can view test data and diagnostic results on site by touch display screen, simple operation, also can output diagnostic conclusion by external printer, can satisfy the demand of on-site detection.

[0005] To achieve the above object, the technical scheme provided by the utility model is as follows: a kind of test test bench for servo control box, comprising:

[0006] Host computer, the host computer is used to complete the data processing and analysis of acquisition signal;

[0007] Lower computer, the lower computer is electrically connected with host computer, and the lower computer is used to collect the data information of measured object according to the instruction of host computer and transmit acquisition result to host computer;

[0008] Power module, the power module is electrically connected with host computer and lower computer, and the power module is used to provide matching working voltage for host computer and lower computer.

[0009] Preferably, the host computer includes industrial computer and touch display screen, and the industrial computer is electrically connected with touch display screen;The lower computer includes acquisition module and signal conditioning module, and the acquisition module is electrically connected with industrial computer and signal conditioning module.

[0010] Preferably, the power module includes lithium battery and power adapter electrically connected with lithium battery.

[0011] Preferably, the test bench for the servo control box further comprises a carrier plate, the lithium battery of the power module is electrically connected with the carrier plate, and the acquisition module and the signal conditioning module are electrically connected with the carrier plate.

[0012] Preferably, the carrier plate is provided with a slot.

[0013] Preferably, the test bench for the servo control box further comprises a shell, and the industrial computer of the upper computer, the acquisition module of the lower computer, the signal conditioning module of the lower computer, the lithium battery of the power module and the carrier plate are all installed in the shell.

[0014] Preferably, a handle is installed on the top of the shell, and rubber foot pads are installed at the four corners of the shell.

[0015] Preferably, two indicator lamps electrically connected with the industrial computer are arranged on the shell.

[0016] Preferably, a communication interface electrically connected with the industrial computer is arranged on one side of the shell.

[0017] Compared with the prior art, the test bench is connected with the measured object through a detection cable and a corresponding test bench connector, and detection signals are transmitted to the test bench for the servo control box, the measured signals are first sent to the signal conditioning module for conditioning, so as to become the required and suitable signals for acquisition,

[0018] After conditioning, the signals are sent to the acquisition module for processing, the industrial computer of the upper computer accesses the acquisition module through a bus, reads the acquired data information, simultaneously calls fault diagnosis information for fault diagnosis and positioning, and performs real-time analysis, storage, display and conclusion formation on the data information. The operator can view the test data and diagnosis results on site through the touch display screen, and also can output the diagnosis conclusion through an external printer.

[0019] Other features and advantages of the present application will be described in the following description, and some will be apparent from the description, or can be understood by those skilled in the art through implementation of the present application. The features and advantages of the present application can be achieved and obtained by the elements and combinations specifically indicated in the appended claims. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings;

[0021] Fig. 1Part structure schematic view of the test test bench for the servo control box is provided.

[0022] Fig. 2 Part structure schematic view of the test test bench for the servo control box is provided.

[0023] Fig. 3 The utility model provides a perspective view of the test test bench for the servo control box.

[0024] The drawing figure: 1, industrial computer;2, touch display screen;3, acquisition module;4, signal conditioning module;5, lithium cell;6, carrier plate;7, shell;8, handle;9, rubber foot pad;10, pilot lamp;11, communication interface. DETAILED DESCRIPTION

[0025] In order to make the utility model purposes, technical schemes and beneficial technical effects clearer, the following is combined with the specific embodiment, and the utility model is further detailed.The specific embodiment described in the specification is only for explaining the utility model, and is not for limiting the utility model.

[0026] It needs to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and are not indicative or suggestive of the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0027] It also needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing", "setting" and the like should be broadly understood, for example, can be fixedly connected, or can be detachably connected, or can be integrated;Can be mechanically connected, or can be electrically connected;Can be directly connected, or indirectly connected through an intermediate medium;It can be the internal communication of two elements or the interaction relationship of two elements.For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0028] In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicative or suggestive of relative importance or implicit indication of the number of indicated technical features.Therefore, the features limited by "first", "second", "third" can be explicitly or implicitly included one or more features.In addition, the meaning of "multiple", "several" is two or more than two, unless otherwise explicitly specified.

[0029] It should be noted that the servo controller cabinet is mainly composed of a servo amplifier, a servo amplifier, a detection and emission plug-in board, a bottom plate and a cabinet. The servo amplifier circuit includes a preamplifier circuit, a zero adjustment circuit, a speed and acceleration feedback circuit and a differential power amplifier circuit. In order to facilitate description, the servo controller cabinet is referred to as a servo control box hereinafter.

[0030] The main function of the preamplifier circuit is to match the load of the proportional valve, and to condition the input D / A end output voltage signal of the host computer, the speed feedback signal and the acceleration feedback signal. The speed and acceleration feedback circuit is to improve the dynamic response characteristics of the control system, wherein the speed feedback signal is obtained by the position digital conversion module RDC, and the acceleration feedback is obtained by differentiating the speed feedback signal. The function of the zero adjustment circuit is to ensure that the proportional valve is closed and the special emission device is stationary when the computer output is 0V. The differential amplifier circuit can effectively suppress the influence of power amplifier tube parameter drift on the system characteristics and improve the common mode rejection ratio.

[0031] Please refer to Figs. 1 to 3 The utility model proposes a kind of test test bench for servo control box, comprising:

[0032] Host computer, the host computer is used to complete the data processing and analysis of acquisition signal;

[0033] Lower computer, the lower computer is electrically connected with host computer, and the lower computer is used to collect the data information of measured object (servo control box) according to the instruction of host computer and transmit the acquisition result to host computer;

[0034] Power module, the power module is electrically connected with host computer and lower computer, and the power module is used to provide matching working voltage for host computer and lower computer.

[0035] Specifically, the host computer includes industrial computer 1 (selects embedded industrial computer 1 with ARM chip, DSP chip and MCS51 chip as core as main control core of test bench, is responsible for the coordinated control of test bench hardware and software and the analysis and processing of signal) and touch display screen 2 (the size of touch display screen 2 is 10.4 inches), the internal circuit of industrial computer 1 is electrically connected with touch display screen 2, and the touch display screen 2 is integrally designed on the industrial computer 1;The lower computer includes acquisition module 3 and signal conditioning module 4, and the acquisition module 3 is electrically connected with the internal circuit of industrial computer 1 and signal conditioning module 4.

[0036] The test test bench for servo control box is connected with measured object through detection cable and corresponding test bench navigation plug, and detection signal is transmitted to the test test bench for servo control box, and measured signal is first sent to signal conditioning module 4 for conditioning, so that it becomes the required signal suitable for acquisition,

[0037] Then the signal after conditioning is sent to the acquisition module 3 (the product model of the acquisition module 3 is PCI104-325) for processing, the industrial computer 1 of the upper computer accesses the acquisition module 3 through a bus, reads the collected data information, simultaneously calls fault diagnosis information to diagnose and locate faults, and performs real-time analysis, storage, display and conclusion formation on the data information. The operating personnel can view the test data and diagnosis results on site through the touch display screen 2, and also can output the diagnosis conclusion through an external printer.

[0038] The PCI104-325 acquisition module 3, i.e. the signal acquisition board card, is a multifunctional board card, which realizes A / D, D / A, digital I / O, counter and frequency generator through one board card, and brings convenience for system development. The acquisition board card uses PCI9054 as a bridge control chip.

[0039] The PCI104-325 signal acquisition board card is designed with 16 A / D acquisition channels, which are AI_0~AI_15 respectively, the conversion precision is 16 bits, the maximum sampling rate of a single channel reaches 500KHz, and the analog signal can be converted into a digital signal in proportion.

[0040] Meanwhile, the PCI104-325 signal acquisition board card is designed with 2 D / A analog output channels, which are DAC0 and DAC1 respectively, the conversion precision is 16 bits, the range can be set, and the maximum analog output frequency is 100KHz. The D / A analog output channel converts the collected digital quantity into a corresponding analog quantity. The code on each bit of the digital quantity is converted into a corresponding analog voltage by weight, and then the analog quantities are added to realize the conversion of digital quantity to analog current, and finally the analog current is converted into analog voltage by an operational amplifier.

[0041] In addition, the PCI104-325 acquisition board card is also designed with 24 general I / O interfaces, which are P0_0~P0_7, P1_0~P1_7 and P2_0~P2_7 respectively, and supports standard 4V TTL input and output.

[0042] In a preferred embodiment, the power module comprises a lithium battery 5 and a power adapter electrically connected with the lithium battery 5, and the lithium battery 5 provides matched working voltages for the upper computer and the lower computer.

[0043] When using an external 220V alternating power supply, the external 220V alternating power supply is connected through the power adapter to convert the 220V alternating power supply into a 24V direct current power supply, at this time the external power supply is used to power the test bench for servo control box, and the lithium battery 5 is charged.

[0044] When there is no external power supply, the lithium battery 5 is responsible for powering the upper computer and the lower computer, ensuring that the test bench is used in the field. When the test bench is powered by the internal lithium battery 5, the working time of the test bench can be guaranteed to be not less than 2 hours.

[0045] In a preferred embodiment, the test bench for the servo control box further comprises a carrier board 6, which is electrically connected with the lithium battery 5 of the power supply module, and the acquisition module 3 and the signal conditioning module 4 are electrically connected with the carrier board 6. It should be noted that the carrier board 6 can be selected as a CAN bus board card.

[0046] In a preferred embodiment, the carrier board 6 is provided with a slot, which facilitates the insertion of a plug-in (such as a memory stick) on the carrier board 6, thereby realizing the expansion of the function of the carrier board 6.

[0047] In a preferred embodiment, the test bench for the servo control box further comprises a housing 7, and the industrial computer 1 of the upper computer, the acquisition module 3 of the lower computer, the signal conditioning module 4 of the lower computer, the lithium battery 5 of the power supply module, and the carrier board 6 are all installed in the housing 7.

[0048] It should be noted that in this embodiment, the housing 7 is made of aluminum alloy material, and the surface of the housing 7 can be optionally plated with a rust-proof and corrosion-resistant material.

[0049] In a preferred embodiment, a handle 8 is installed on the top of the housing 7, and rubber foot pads 9 are installed at the four corners (upper left corner, lower left corner, upper right corner, and lower right corner) of the housing 7, thereby facilitating carrying and placing.

[0050] In a preferred embodiment, two indicator lights 10 electrically connected with the industrial computer 1 are provided on the housing 7, one of which is a battery charging indicator light 10, and the other is a power indicator light 10.

[0051] When the battery charging indicator light 10 is red, it indicates that the lithium battery 5 is charging; when the battery charging indicator light 10 turns green, it indicates that the lithium battery 5 is fully charged. When the system is working normally, the power indicator light 10 is green, and the voltage of the lithium battery 5 is normal; when the power indicator light 10 turns red, the voltage of the lithium battery 5 is under-voltage, and the test bench needs to be charged in time.

[0052] In a preferred embodiment, a communication interface 11 electrically connected with the industrial computer 1 is provided on one side of the housing 7, and the communication interface 11 can be plugged with a USB interface, thereby facilitating the export of data information through the USB interface for offline data analysis, completing classification and summary, and supplementing the fault database.

[0053] The industrial computer 1 of the upper computer can also be connected with a remote control terminal test bench (such as a computer) through a network port, realizing remote operation detection work.

[0054] The present application is not limited to the embodiments described in the specification and drawings, and various modifications can be made without departing from the spirit and scope of the present application.

Claims

1. A test bench for a servo control box, characterized in that, The utility model relates to a test test bench for servo control box, which comprises an upper computer, a lower computer, a power module and a load board. The upper computer is used for completing data processing and analysis of collected signals. The lower computer is electrically connected with the upper computer and is used for collecting data information of a measured object according to an instruction of the upper computer and transmitting the collection result to the upper computer. The power module is electrically connected with the upper computer and the lower computer and is used for providing matched working voltages for the upper computer and the lower computer. The upper computer comprises an industrial computer (1) and a touch display screen (2), the touch display screen (2) is arranged on the industrial computer (1) in an integrated design, and the industrial computer (1) is electrically connected with the touch display screen (2).

2. The test bench for a servo control box according to claim 1, wherein The lower computer comprises a collection module (3) and a signal conditioning module (4), and the collection module (3) is electrically connected with the industrial computer (1) and the signal conditioning module (4).

3. The test bench for a servo control box according to claim 2, wherein The power module comprises a lithium battery (5) and a power adapter electrically connected with the lithium battery (5).

4. The test bench for a servo control box according to claim 3, wherein The test test bench for the servo control box further comprises a load board (6) electrically connected with the lithium battery (5) of the power module, and the collection module (3) and the signal conditioning module (4) are electrically connected with the load board (6).

5. The test bench for a servo control box according to claim 3, wherein The load board (6) is provided with a slot.

6. The test bench for a servo control box according to claim 5, wherein The test test bench for the servo control box further comprises a shell (7), and the industrial computer (1) of the upper computer, the collection module (3) of the lower computer, the signal conditioning module (4) of the lower computer, the lithium battery (5) of the power module and the load board (6) are all installed in the shell (7).

7. The test bench for a servo control box according to claim 5, wherein A handle (8) is installed on the top of the shell (7), and rubber foot pads (9) are installed at the four corners of the shell (7).

8. The test bench for a servo control box according to claim 5, wherein Two indicator lights (10) electrically connected with the industrial computer (1) are arranged on the shell (7). A communication interface (11) electrically connected with the industrial computer (1) is arranged on one side of the shell (7).

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