阅读说明：本技术 一种用于模拟扭轴折弯机的测试装备 (Test equipment for simulating torsion shaft 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扭轴折弯机的测试装备,包括,控制终端,用于输入需要测试的数控控制系统和测试参数,并根据输入的数控控制系统和测试参数控制液压模拟模块、定位模拟模块对扭轴折弯机进行模拟；液压模拟模块,用于根据输入的数控控制系统对扭轴折弯机的液压单元进行模拟；定位模拟模块,用于根据输入的数控控制系统对扭轴折弯机的机械定位单元进行模拟；反馈模块,用于采集液压模拟模块的位置反馈信号和开关的反馈信号,并根据液压模拟模块的位置反馈信号和开关的反馈信号,生成模拟测试结果。本发明能模拟现场不同类型扭轴折弯机工作,通过模拟过程对不同类型扭轴折弯机进行测试。(The invention provides a test device for simulating a torsion shaft bending machine, which comprises a control terminal, a hydraulic simulation module and a positioning simulation module, wherein the control terminal is used for inputting a numerical control system and test parameters to be tested, and controlling the hydraulic simulation module and the positioning simulation module to simulate the torsion shaft bending machine according to the input numerical control system and test parameters; the hydraulic simulation module is used for simulating a hydraulic unit of the torsion shaft bending machine according to an input numerical control system; the positioning simulation module is used for simulating a mechanical positioning unit of the torsion shaft bending machine according to an input numerical control system; and the feedback module is used for acquiring the position feedback signal of the hydraulic simulation module and the feedback signal of the switch and generating a simulation test result according to the position feedback signal of the hydraulic simulation module and the feedback signal of the switch. The device can simulate the work of different types of torsion bar bending machines on site, and tests the different types of torsion bar bending machines through a simulation process.)

1. A test rig for simulating a torsion bar bender, comprising:

the control terminal is used for inputting a numerical control system and test parameters to be tested, and controlling the hydraulic simulation module and the positioning simulation module to simulate the torsion shaft bending machine according to the input numerical control system and test parameters;

the hydraulic simulation module is used for simulating a hydraulic unit of the torsion shaft bending machine according to an input numerical control system;

the positioning simulation module is used for simulating a mechanical positioning unit of the torsion shaft bending machine according to an input numerical control system;

and the feedback module is used for acquiring the position feedback signal of the hydraulic simulation module and the feedback signal of the switch and generating a simulation test result according to the position feedback signal of the hydraulic simulation module and the feedback signal of the switch.

2. The test rig of claim 1, wherein the positioning simulation module includes a second lead screw, a second drive motor; the second screw rod is arranged on the second driving motor and can be driven by the second driving motor to move, and one end of the second screw rod is provided with a stop block for limiting the positioning of the slide block of the first screw rod.

3. The test rig of claim 2, wherein the hydraulic simulation module includes a first drive motor, a first lead screw; the first driving motor is arranged on the first screw rod; the first screw rod is arranged on the first driving motor and can be driven by the first driving motor to displace, and the first screw rod is used for simulating a hydraulic unit of the torsion shaft bending machine; the first lead screw is electrically connected with the feedback module and used for measuring a displacement signal of the first lead screw.

4. The test equipment as claimed in claim 3, wherein the feedback module comprises a limit switch disposed at one side of the first driving motor and corresponding to a start position and an end position of the first lead screw, respectively; when the first screw rod 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 screw rod passes through the limit switch at the termination position, the trigger switch is switched on, and the position feedback simulation is finished.

5. The testing equipment of claim 4, wherein the feedback module comprises a measuring ruler, the measuring ruler is electrically connected with the first lead screw, and is used for measuring the position signal of the first lead screw and outputting the position signal of the first lead screw to the control terminal.

6. The test equipment of claim 6, wherein the control terminal comprises a signal input module, and the signal input module is electrically connected with the hydraulic simulation module and the positioning simulation module respectively and used for simulating signal input of test parameters.

7. The test equipment as claimed in claim 6, wherein the control terminal includes a controller, which is respectively connected to the signal input module, the feedback module, the hydraulic simulation module, and the positioning simulation module, and configured to generate a corresponding control signal according to the signal input by the signal input module, control the first driving motor and the second driving motor to move according to the control signal, so as to slide the first lead screw and the second lead screw, and generate a simulation test result according to the signal collected by the feedback module.

8. The test equipment of claim 7, wherein the control terminal includes a voltmeter to display an analog voltage signal in the analog test results generated by the controller.

Technical Field

The invention relates to the technical field of automation, in particular to a test device for a simulation torsion shaft bending machine.

Background

The numerical control system of the torsion shaft bending machine which is developed at present cannot perform comprehensive function verification feasibility in a company every time the system is upgraded, and the upgraded system can find problems only when arriving at a client site, so that batch quality accidents are caused, the after-sale maintenance cost is increased, and even the clients are lost, so that serious economic loss is caused.

Companies have also considered purchasing an off-the-shelf whole bending machine as test equipment before the system leaves the factory, but this solution has several problems: firstly, the torsion shaft bending machine is large in size and heavy, can be moved only by a crane and cannot be placed in an office building; second, torsion bar bender numerical control system function covers multiple model, and the unable complete whole model function test of realization of a bender: and thirdly, the price of the torsion shaft bending machine is high, the cheapest small bending machine needs hundreds of thousands of equipment, and meanwhile, a hydraulic system needs to be maintained frequently, so that the cost is high.

Therefore, the invention is urgently needed to provide a test device which is small in size, portable, low in cost, complete in function and capable of simulating the work of different types of torsion shaft bending machines on site.

Disclosure of Invention

The invention aims to provide test equipment for simulating a torsion bar bending machine, and solves the technical problems that the existing test equipment cannot simulate different types of torsion bar bending machines and is high in cost.

In one aspect, a test rig for simulating a torsion bar bending machine is provided, comprising:

the control terminal is used for inputting a numerical control system and test parameters to be tested, and controlling the hydraulic simulation module and the positioning simulation module to simulate the torsion shaft bending machine according to the input numerical control system and test parameters;

the hydraulic simulation module is used for simulating a hydraulic unit of the torsion shaft bending machine according to an input numerical control system;

the positioning simulation module is used for simulating a mechanical positioning unit of the torsion shaft bending machine according to an input numerical control system;

and the feedback module is used for acquiring the position feedback signal of the hydraulic simulation module and the feedback signal of the switch and generating a simulation test result according to the position feedback signal of the hydraulic simulation module and the feedback signal of the switch.

Preferably, the positioning simulation module comprises a second screw rod and a second driving motor; the second screw rod is arranged on the second driving motor and can be driven by the second driving motor to move, and one end of the second screw rod is provided with a stop block for limiting the positioning of the slide block of the first screw rod.

Preferably, the hydraulic simulation module comprises a first driving motor and a first screw rod; the first driving motor is arranged on the first screw rod; the first screw rod is arranged on the first driving motor and can be driven by the first driving motor to displace, and the first screw rod is used for simulating a hydraulic unit of the torsion shaft bending machine; the first lead screw is electrically connected with the feedback module and used for measuring a displacement signal of the first lead screw.

Preferably, the feedback module comprises a limit switch, which is arranged on one side of the first driving motor and corresponds to the start position and the end position of the first screw rod respectively; when the first screw rod 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 screw rod passes through the limit switch at the termination position, the trigger switch is switched on, and the position feedback simulation is finished.

Preferably, the feedback module includes a measuring scale, and the measuring scale is electrically connected to the first lead screw and is configured to measure a position signal of the first lead screw, and output the position signal of the first lead screw to the control terminal.

Preferably, the control terminal comprises a signal input module, and the signal input module is electrically connected with the hydraulic simulation module and the positioning simulation module respectively and used for simulating the signal input of the test parameters.

Preferably, the control terminal includes a controller, which is respectively connected to the signal input module, the feedback module, the hydraulic simulation module, and the positioning simulation module, and configured to generate a corresponding control signal according to a signal input by the signal input module, control the first driving motor and the second driving motor to move according to the control signal, so as to slide the first lead screw and the second lead screw, and generate a simulation test result according to a signal acquired by the feedback module.

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

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

the test equipment for simulating the torsion bar bending machine provided by the invention can simulate the operation of the actual torsion bar bending machine, and can test whether the numerical control system can operate correctly according to the designed bending process flow; the structure design is compact, the size is small, and the weight is light; the device can simulate different types of torsion bar bending machines to work on site, and tests are carried out on the different types of torsion bar 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 a torsion bar bending machine in an embodiment of the present invention.

Fig. 2 is a schematic diagram of a test setup for simulating a torsion bar bending machine in an embodiment of the present invention.

Fig. 3 is an electrical schematic diagram of a torsion bar bending machine according to an embodiment of the present invention.

Fig. 4 is an electrical schematic diagram of a torsion bar bending machine according to 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 a torsion bar bending machine according to the present invention. In this embodiment, the method includes:

the control terminal is used for inputting a numerical control system and test parameters to be tested, and controlling the hydraulic simulation module and the positioning simulation module to simulate the torsion shaft bending machine according to the input numerical control system and test parameters; 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 the electric principle of the torsion shaft bending machine according to the test equipment, such as the control circuits shown in the figures 3 and 4; 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 signal input module, the signal input module is electrically connected to the hydraulic simulation module and the positioning simulation module respectively, and is used for simulating signal input of test parameters, mainly setting an external IO interface; a controller (in this embodiment, a PLC controller) respectively connected to the signal input module, the feedback module, the hydraulic simulation module, and the positioning simulation module, and configured to generate a corresponding control signal according to a signal input by the signal input module, control the first driving motor and the second driving motor to move according to the control signal, so as to slide the first lead screw and the second lead screw, and generate a simulation test result according to a signal acquired by the feedback module; the voltmeter is used for displaying the simulated voltage signals in the simulation test result generated by the controller, outputting the simulated signals to the external voltmeter, observing the output voltage and further judging whether the voltage is normal or not.

The hydraulic simulation module is used for simulating a hydraulic unit of the torsion shaft bending machine according to an input numerical control system; it can be understood that the output point signal controls the slider servo to enable the (first driving motor) to run downwards, downwards or upwards, and after the oil pump of the hydraulic system of the analog torsion shaft bending machine is started, the hydraulic valve is controlled to realize the functions of fast falling, slow falling and return stroke of the slider.

In a specific embodiment, the hydraulic simulation module comprises a first driving motor and a first screw rod; the first driving motor is arranged on the first screw rod; the first screw rod is arranged on the first driving motor and can be driven by the first driving motor to displace, and the first screw rod is used for simulating a hydraulic unit of the torsion shaft bending machine; the first lead screw is electrically connected with the feedback module and used for measuring a displacement signal of the first lead screw. It can be understood that a servo motor (a first driving motor) with 100W power is adopted to replace a hydraulic system of the bending machine, the first screw rod can be driven, the simulation sliding block moves up and down, the maximum moving range is 20cm, and an external IO device connected with a controller controls the servo motor to simulate the control of the sliding block of the torsion shaft bending machine, so that the fast-down, slow-down and return functions are realized.

The positioning simulation module is used for simulating a mechanical positioning unit of the torsion shaft bending machine according to an input numerical control system; the torsion shaft bending machine has the advantages that the torsion shaft bending machine is forced to be positioned through Y-axis servo machinery, the descending distance of the sliding block can be controlled by controlling the position of Y servo, and bending of sheet metal materials at different angles is achieved. Therefore, in this embodiment, the Y-axis lead screw (second lead screw) is provided with the positioning stop finger, and when the Y-axis positioning is completed, the first driving motor moves downward, the first driving motor is stopped by the positioning stop finger, so as to realize the position positioning.

In a specific embodiment, the positioning simulation module comprises a second screw rod and a second driving motor; the second screw rod is arranged on the second driving motor and can be driven by the second driving motor to move, and one end of the second screw rod is provided with a stop block for limiting the positioning of the slide block of the first screw rod. It can be understood that the Y-axis adopts a 200W servo motor to drive the second lead screw, and a stop block is designed on the second lead screw for simulating the slide block mechanical positioning function of the torsion shaft bending machine.

And the feedback module is used for acquiring the position feedback signal of the hydraulic simulation module and the feedback signal of the switch and generating a simulation test result according to the position feedback signal of the hydraulic simulation module and the feedback signal of the switch. It will be appreciated that the positioning feedback of the slide position can be selected in a variety of ways, such as switch position feedback (limit switch), electronic ruler or grating ruler, to simulate different bender type configurations.

In a specific embodiment, the feedback module comprises a limit switch, which is arranged on one side of the first driving motor and corresponds to the start position and the end position of the first screw rod respectively; when the first screw rod 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 screw rod passes through the limit switch at the termination position, the trigger switch is switched on, and the position feedback simulation is finished. The measuring scale (can adopt electronic ruler or grating chi), the measuring scale with first lead screw electric connection for measure the position signal of first lead screw, and will the position signal output of first lead screw gives control terminal. Specifically, the electronic ruler, the grating ruler and the first lead screw are connected, and when linkage of the first lead screw is achieved, position signals of the electronic ruler or the grating ruler are converted into electric signals to be transmitted to the numerical control system. The switch position feedback is realized by installing a photoelectric switch (limit switch), and the first lead screw triggers the switch to be conducted when passing through the switch, 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 torsion bar bending machine provided by the invention can simulate the operation of the actual torsion bar bending machine, and can test whether the numerical control system can operate correctly according to the designed bending process flow; the structure design is compact, the size is small, and the weight is light; the device can simulate different types of torsion bar bending machines to work on site, and tests are carried out on the different types of torsion bar 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.