阅读说明：本技术 一种用于模拟电液和全电伺服折弯机的测试装备 (Test equipment for simulating electro-hydraulic and full-electric servo bending machine ) 是由 沈晓波 于 2021-07-20 设计创作，主要内容包括：本发明提供一种用于模拟电液和全电伺服折弯机的测试装备,包括,控制终端,用于输入需要测试的数控控制系统,并根据输入的数控控制系统控制滑块模拟模块对模拟电液和全电伺服折弯机进行模拟；滑块模拟模块,用于根据输入的数控控制系统模拟电液和全电伺服折弯机的滑块；反馈模块,用于采集滑块模拟模块的位置反馈信号,并根据位置反馈信号生成模拟测试结果；其中,所述滑块模拟模块内设置可进行同步运动的第一模拟单元、第二模拟单元；所述第一模拟单元和所述第二模拟单元根据输入的数控控制系统模拟电液和全电伺服折弯机的滑块运动。本发明能模拟现场不同类型电液和全电伺服折弯机工作,通过模拟过程对不同类型电液和全电伺服折弯机进行测试。(The invention provides test equipment for simulating an electro-hydraulic and all-electric servo bending machine, which comprises a control terminal, a slide block simulation module and a test control module, wherein the control terminal is used for inputting a numerical control system to be tested and controlling the slide block simulation module to simulate the electro-hydraulic and all-electric servo bending machine according to the input numerical control system; the slide block simulation module is used for simulating slide blocks of the electro-hydraulic and all-electric servo bending machine according to the input numerical control system; the feedback module is used for acquiring a position feedback signal of the sliding block simulation module and generating a simulation test result according to the position feedback signal; the sliding block simulation module is internally provided with a first simulation unit and a second simulation unit which can synchronously move; the first simulation unit and the second simulation unit simulate the movement of a sliding block of an electro-hydraulic and all-electric servo bending machine according to an input numerical control system. The invention can simulate different types of electro-hydraulic and all-electric servo bending machines to work on site, and tests the electro-hydraulic and all-electric servo bending machines of different types through a simulation process.)

1. A test rig for simulating electro-hydraulic and all-electric servo benders, comprising:

the control terminal is used for inputting a numerical control system to be tested and controlling the slide block simulation module to simulate the electro-hydraulic and all-electric servo bending machine according to the input numerical control system;

the slide block simulation module is used for simulating slide blocks of the electro-hydraulic and all-electric servo bending machine according to the input numerical control system;

the feedback module is used for acquiring a position feedback signal of the sliding block simulation module and generating a simulation test result according to the position feedback signal;

the sliding block simulation module is internally provided with a first simulation unit and a second simulation unit which can synchronously move; the first simulation unit and the second simulation unit simulate the movement of a sliding block of an electro-hydraulic and all-electric servo bending machine according to an input numerical control system.

2. The test equipment as claimed in claim 1, wherein the first simulation unit includes a first driving motor, a first lead screw, the first lead screw is disposed on the first driving motor and can be driven by the first driving motor to move, and the first driving motor is connected to the control terminal and is controlled by the control terminal to move.

3. The test equipment as claimed in claim 2, wherein the second simulation unit includes a second driving motor, a second lead screw, the second lead screw is disposed on the second driving motor and can be driven by the second driving motor to move, and the second driving motor is connected to the control terminal and is controlled by the control terminal to move.

4. The test equipment as claimed in claim 3, wherein the control terminal includes a controller, respectively connected to the first driving motor and the second driving motor, for generating corresponding control signals and controlling the first driving motor and the second driving motor to rotate synchronously according to the control signals, so as to realize the synchronous sliding of the first lead screw and the second lead screw.

5. The test equipment of claim 4, wherein the control terminal further comprises a signal input module connected to the controller for inputting an analog test signal to the controller, the controller generating the control signal according to the input analog test signal.

6. The test equipment of claim 5, wherein the control terminal further comprises a voltmeter to display a simulated voltage signal in the simulated test results generated by the controller.

7. The test rig of claim 6, wherein the feedback module includes a first measurement scale, a second measurement scale; the first measuring scale is electrically connected with the first screw rod and used for measuring a position signal of the first screw rod and outputting the position signal of the first screw rod to the control terminal; the second measuring scale is electrically connected with the second screw rod and used for measuring the position signal of the second screw rod and outputting the position signal of the second screw rod to the control terminal.

8. The test equipment as claimed in claim 7, wherein the feedback module further comprises a start position limit switch and an end position limit switch, which are disposed at one side of the first driving motor/the second driving motor and respectively correspond to the start position and the end position of the first lead screw/the second lead screw; when the first lead screw/the second lead screw passes through the limit switch at the initial position, the trigger switch is switched on, and the position feedback simulation is started; and when the first lead screw/the second lead screw passes through the limit switch at the termination position, the trigger switch is switched on, and the position feedback simulation is finished.

Technical Field

The invention relates to the technical field of mechanical automation, in particular to a test device for simulating an electro-hydraulic and full-electric servo bending machine.

Background

With the market development requirement, the electro-hydraulic numerical control bending system and the full-electric servo bending machine numerical control system are both in the stage of continuously updating or developing a new system, but for the newly developed system, detailed function tests are required to be performed before each function leaves a factory, and the function is guaranteed to have no problem. The existing test mode is mainly to use an electrohydraulic bending machine complete machine as a system to carry out test equipment before leaving a factory, but the scheme has several problems:

first, the electro-hydraulic bending machine is large in size and heavy, and can not be placed in office building places only by a crane. Most of the current modes are stored in a factory warehouse, developers and testers in different places need to go to the warehouse for testing, and the testing efficiency is low.

Secondly, the numerical control system function of the bending machine covers various machine types, and the function test of all machine types cannot be completely realized by one bending machine.

Thirdly, the price of the electro-hydraulic bending machine is high, the cheapest small electro-hydraulic bending machine needs twenty-ten thousands, and meanwhile, a hydraulic system needs to be maintained frequently, so that the cost is high.

And the price of the full-electric servo bending machine is higher, the price of the full-electric servo bending machine is at least more than 40 ten thousand in China, the market capacity of the machine type is small, and the purchase of equipment is not paid. And thus is not suitable for purchase.

Therefore, a test device which is small in size, portable, low in cost and complete in function and can simulate a field bending machine to test an electro-hydraulic bending machine system and an all-electric servo bending machine is urgently needed.

Disclosure of Invention

The invention aims to provide test equipment for simulating an electro-hydraulic and all-electric servo bending machine, and solves the technical problems of low test efficiency, high cost and single test function of the conventional method.

In one aspect, a test rig for simulating electro-hydraulic and all-electric servo benders is provided, comprising:

the control terminal is used for inputting a numerical control system to be tested and controlling the slide block simulation module to simulate the electro-hydraulic and all-electric servo bending machine according to the input numerical control system;

the slide block simulation module is used for simulating slide blocks of the electro-hydraulic and all-electric servo bending machine according to the input numerical control system;

the feedback module is used for acquiring a position feedback signal of the sliding block simulation module and generating a simulation test result according to the position feedback signal;

the sliding block simulation module is internally provided with a first simulation unit and a second simulation unit which can synchronously move; the first simulation unit and the second simulation unit simulate the movement of a sliding block of an electro-hydraulic and all-electric servo bending machine according to an input numerical control system.

Preferably, the first analog unit includes a first driving motor and a first lead screw, the first lead screw is disposed on the first driving motor and can be driven by the first driving motor to move, and the first driving motor is connected to the control terminal and is controlled by the control terminal to move.

Preferably, the second analog unit includes a second driving motor and a second lead screw, the second lead screw is disposed on the second driving motor and can be driven by the second driving motor to move, and the second driving motor is connected to the control terminal and is controlled by the control terminal to move.

Preferably, the control terminal includes a controller, which is respectively connected to the first driving motor and the second driving motor, and configured to generate a corresponding control signal and control the first driving motor and the second driving motor to synchronously rotate according to the control signal, so as to achieve synchronous sliding of the first lead screw and the second lead screw.

Preferably, the control terminal further comprises a signal input module, the signal input module is connected to the controller and is used for inputting the analog test signal into the controller, and the controller generates the control signal according to the input analog test signal.

Preferably, the control terminal further comprises a voltmeter for displaying the simulated voltage signal in the simulation test result generated by the controller.

Preferably, the feedback module comprises a first measuring scale, a second measuring scale; the first measuring scale is electrically connected with the first screw rod and used for measuring a position signal of the first screw rod and outputting the position signal of the first screw rod to the control terminal; the second measuring scale is electrically connected with the second screw rod and used for measuring the position signal of the second screw rod and outputting the position signal of the second screw rod to the control terminal.

Preferably, the feedback module further includes a start position limit switch and an end position limit switch, which are disposed at one side of the first driving motor/the second driving motor and respectively correspond to the start position and the end position of the first lead screw/the second lead screw; when the first lead screw/the second lead screw passes through the limit switch at the initial position, the trigger switch is switched on, and the position feedback simulation is started; and when the first lead screw/the second lead screw passes through the limit switch at the termination position, the trigger switch is switched on, and the position feedback simulation is finished.

In summary, the embodiment of the invention has the following beneficial effects:

the test equipment for simulating the electro-hydraulic and all-electric servo bending machine provided by the invention can be used for simulating the operation of the electro-hydraulic and all-electric servo bending machine, so that whether a numerical control system can operate correctly according to the designed bending process flow can be tested; the structure design is compact, the size is small, and the weight is light; the simulation test device can simulate different types of electro-hydraulic and all-electric servo bending machines to work on site, and tests are carried out on the different types of electro-hydraulic and all-electric servo bending machines through a simulation process.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is within the scope of the present invention for those skilled in the art to obtain other drawings based on the drawings without inventive exercise.

Fig. 1 is a schematic diagram of a test setup for simulating electro-hydraulic and all-electric servo bending machines in an embodiment of the present invention.

Fig. 2 is a schematic diagram of a test setup for simulating electro-hydraulic and all-electric servo bending machines in an embodiment of the present invention.

Fig. 3 is an electrical schematic diagram of an electro-hydraulic and all-electric servo bending machine according to an embodiment of the present invention.

Fig. 4 is an electrical schematic diagram of a test setup for simulating electro-hydraulic and all-electric servo bending machines in an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.

Fig. 1 and 2 are schematic diagrams of an embodiment of a test rig for simulating electro-hydraulic and all-electric servo bending machines provided by the present invention. In this embodiment, the method includes:

the slide block simulation module is used for simulating slide blocks of the electro-hydraulic and all-electric servo bending machine according to the input numerical control system; the sliding block simulation module is internally provided with a first simulation unit and a second simulation unit which can synchronously move; the first simulation unit and the second simulation unit simulate the movement of a sliding block of an electro-hydraulic and all-electric servo bending machine according to an input numerical control system. It can be understood that the slide block servo (the first driving motor and the second driving motor) is controlled to run downwards or upwards by the control signal output by the control terminal, and the functions of fast falling, slow falling and return stroke of the slide block are realized by controlling after the oil pump of the hydraulic system of the analog electro-hydraulic and all-electric servo bending machine is started.

In a specific embodiment, the first analog unit includes a first driving motor and a first lead screw, the first lead screw is disposed on the first driving motor and can be driven by the first driving motor to move, and the first driving motor is connected to the control terminal and is controlled by the control terminal to move. The second analog unit comprises a second driving motor and a second screw rod, the second screw rod is arranged on the second driving motor and can be driven by the second driving motor to move, and the second driving motor is connected with the control terminal and is controlled by the control terminal to move. The test bench can be used for generating control signals through a numerical control system and parameters input by the control terminal when the electro-hydraulic bending machine system is simulated, controlling the two lead screws to synchronously move up and down according to the control signals and the feedback of the control signals through the feedback module, and controlling the descending distance of the sliding block to realize bending of sheet metal materials at different angles. When the full-electric bending machine system is simulated, the test board controls the two screw rods to move up and down synchronously through an EtherCAT bus arranged in the control terminal, and controls the descending distance of the sliding block, so that the bending of the sheet metal material at different angles is realized. Specifically, two servo motors (a first driving motor and a second driving motor) with 100W power are adopted to replace a hydraulic system of an electro-hydraulic and all-electric servo bending machine, a first screw rod and a second screw rod can be driven, a simulation sliding block synchronously moves up and down, the maximum moving range is 20cm, an external IO device connected with a controller controls the servo motors to simulate the control of the electro-hydraulic and all-electric servo bending machine sliding block, and the fast-down, slow-down and return functions are realized.

The control terminal is used for inputting a numerical control system to be tested and controlling the slide block simulation module to simulate the electro-hydraulic and all-electric servo bending machine according to the input numerical control system; it can be understood that the control terminal is a terminal for implementing human-computer interaction and control operations and result feedback. Control circuits can be arranged according to test equipment according to the electric principle of the electro-hydraulic and all-electric servo bending machine as shown in figure 3; the numerical control system program to be tested can be downloaded into a PLC controller of the control terminal; servo parameters can be set, and the connection condition of the external IO interface can be configured through the tested numerical control system.

In a specific embodiment, the control terminal includes a controller (in this embodiment, a PLC controller), which is respectively connected to the first driving motor and the second driving motor, and configured to generate corresponding control signals, and control the first driving motor and the second driving motor to synchronously rotate according to the control signals through an electrical principle as shown in fig. 4, so as to achieve synchronous sliding of the first lead screw and the second lead screw. Specifically, the control terminal further comprises a signal input module, the signal input module is connected with the controller and used for inputting the analog test signal into the controller, and the controller generates a control signal according to the input analog test signal, mainly setting an external IO interface. The control terminal also comprises a voltmeter for displaying the simulated voltage signal in the simulation test result generated by the controller, outputting the simulated signal to an external voltmeter, observing the output voltage and further judging whether the voltage is normal or not.

And the feedback module is used for acquiring the position feedback signal of the sliding block simulation module and generating a simulation test result according to the position feedback signal. It can be understood that the positioning feedback of the slide position can be selected in various ways, such as switch position feedback (limit switch), grating ruler, and simulation of different bender type configurations.

In a specific embodiment, the feedback module comprises a first measuring scale and a second measuring scale; the first measuring scale is electrically connected with the first screw rod and used for measuring a position signal of the first screw rod and outputting the position signal of the first screw rod to the control terminal; the second measuring scale is electrically connected with the second screw rod and used for measuring the position signal of the second screw rod and outputting the position signal of the second screw rod to the control terminal. The grating ruler is connected with the first lead screw and the second lead screw, and when the first lead screw and the second lead screw are synchronously linked, the position signal of the grating ruler is converted into an electric signal and transmitted to the numerical control system.

Specifically, the feedback module further includes a start position limit switch and an end position limit switch, which are disposed at one side of the first driving motor/the second driving motor and respectively correspond to the start position and the end position of the first lead screw/the second lead screw; when the first lead screw/the second lead screw passes through the limit switch at the initial position, the trigger switch is switched on, and the position feedback simulation is started; and when the first lead screw/the second lead screw passes through the limit switch at the termination position, the trigger switch is switched on, and the position feedback simulation is finished. The switch position feedback is realized by installing photoelectric switches (a start position limit switch and an end position limit switch), and the first lead screw and the second lead screw can trigger the switches to be switched on when passing through, so that the position feedback simulation is realized.

In summary, the embodiment of the invention has the following beneficial effects:

the test equipment for simulating the electro-hydraulic and all-electric servo bending machine provided by the invention can be used for simulating the operation of the electro-hydraulic and all-electric servo bending machine, so that whether a numerical control system can operate correctly according to the designed bending process flow can be tested; the structure design is compact, the size is small, and the weight is light; the simulation test device can simulate different types of electro-hydraulic and all-electric servo bending machines to work on site, and tests are carried out on the different types of electro-hydraulic and all-electric servo bending machines through a simulation process.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.