Automatic workpiece identification method and system for full-automatic hydraulic punching machine of equipment wire clamp

Abstract

The invention relates to the technical field of power transformation operation and maintenance, in particular to an equipment wire clamp full-automatic hydraulic punching machine workpiece automatic identification method and system.The method comprises the following steps that a wire clamp size data set and a punching program data set are established, elements in the size data set are size data of a wire clamp, and elements in the punching program data set are punching program data of the wire clamp; the size data of the workpiece comprises the length and the width of the workpiece, the elements in the punching program data set are punching programs of the wire clamp, and the elements in each size data set correspond to the elements in one punching program data set. According to the embodiment of the invention, the size data of the workpiece is obtained in a photoelectric induction mode, manual measurement by operators is not needed, the measurement efficiency is improved, the measurement error is reduced, and the original point calibration action is executed before the punching program is executed, so that the error caused by deviation of each part in the equipment is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of substation operation and maintenance, and in particular to a method and system for automatically identifying workpieces of a fully automatic hydraulic punching machine for equipment wire clamps. Background Art

[0002] The fully automatic hydraulic punching machine can solve many of the problems of on-site punching in power transmission and transformation and on-site construction. It improves construction efficiency, reduces safety hazards during construction, and improves punching accuracy. It can achieve standard punching and manual punching of different specifications of wire clamps with one click.

[0003] However, in actual applications, there are still some problems: First, we need to measure and determine the specifications of the wire clamps before punching according to standard procedures, which is time-consuming; second, if the equipment is affected by external forces and any of the clamping parts, moving parts or punching machines has a certain offset, the zero point position will change and the punching accuracy will be affected. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present application provides a method and system for automatic identification of workpieces of a fully automatic hydraulic punching machine with a wire clamp. The embodiment of the present application obtains the dimensional data of the workpiece by using photoelectric sensing, eliminating the need for manual measurement by the operator, thereby improving the measurement efficiency and reducing the measurement error. In addition, the present application performs an origin calibration action before executing the punching program to reduce the error caused by the offset of various components in the equipment.

[0005] The above-mentioned application objectives of this application are achieved through the following technical solutions:

[0006] A method for automatically identifying workpieces of a fully automatic hydraulic punching machine for equipment wire clamps comprises the following steps:

[0007] Establishing a dimension data set for the wire clamp and a punching program data set, wherein the elements in the dimension data set are the dimension data of the wire clamp, the dimension data of the workpiece include the length and width of the workpiece, and the elements in the punching program data set are the punching programs of the wire clamp, and each element in the dimension data set corresponds to an element in the punching program data set;

[0008] Get the size data of the current workpiece;

[0009] Calling the punching program in the punching program data set corresponding to the current workpiece according to its size data;

[0010] Calibrate the device origin;

[0011] Execute the punching procedure.

[0012] Optionally, obtaining the dimension data of the current workpiece includes:

[0013] Sending a measuring light curtain to the current workpiece location, wherein the measuring light curtain is a plurality of light beams with equal distances between each other;

[0014] Get the amount of light blocked by the current workpiece;

[0015] The size data of the current workpiece is calculated according to the amount of light blocked by the current workpiece, where the size data of the current workpiece includes width data and length data.

[0016] Optionally, the calibration device origin includes:

[0017] Horizontally move the clamping mechanism for clamping the current workpiece;

[0018] Obtain the sensing signal of the vertical arm of the clamping mechanism. When the sensing signal of the vertical arm of the clamping mechanism changes from being present to being absent, record the current X-axis coordinate point X1.

[0019] vertically movable clamping mechanism;

[0020] Obtain the sensing signal of the horizontal arm of the clamping mechanism. When the sensing signal of the vertical arm of the clamping mechanism changes from being present to being absent, record the current Y-axis coordinate point Y1.

[0021] Based on the acquired coordinate point (X1, Y1), the coordinate position of the origin of the current workpiece relative to the entire system is calculated.

[0022] Optionally, executing the punching procedure includes:

[0023] Calibrate the origin of the punching program according to the obtained coordinate point (X1, Y1);

[0024] The punching program corresponding to the current workpiece size is executed with the calibrated origin as the reference point.

[0025] The present application also provides an automatic workpiece identification system for a fully automatic hydraulic punching machine with a wire clamp, including:

[0026] A main control board is used to establish a size data set and a punching program data set for the wire clamp, and is also used to call a punching program in the punching program data set corresponding to the current workpiece according to the size data of the workpiece and execute the punching program;

[0027] A first measuring device is used to obtain the dimensional data of the current workpiece;

[0028] The second measuring device is used to calibrate the device origin.

[0029] Optionally, the first measuring device includes:

[0030] An emitter is used to emit a measuring light curtain toward the current workpiece location, wherein the measuring light curtain is a plurality of light beams with equal distances between each other;

[0031] The receiver is used to obtain the amount of light blocked by the current workpiece;

[0032] The processor is used to calculate the size data of the current workpiece according to the amount of light blocked by the current workpiece, wherein the size data of the current workpiece includes width data and length data.

[0033] Optionally, a transmitter and a receiver form a measurement group, and the first measurement device has two measurement groups, one of which is used to measure the length of the current workpiece, and the other is used to measure the width of the current workpiece.

[0034] Optionally, the second measuring device includes:

[0035] a control system for controlling the horizontal and vertical movement of the clamping mechanism;

[0036] Proximity sensor 1 is used to obtain the sensing signal of the vertical arm of the clamping mechanism. When the sensing signal of the vertical arm of the clamping mechanism changes from being present to being absent, the current X-axis coordinate point X1 is recorded.

[0037] Proximity sensor 2 obtains the sensing signal of the horizontal arm of the clamping mechanism. When the sensing signal of the vertical arm of the clamping mechanism changes from being present to being absent, the current Y-axis coordinate point Y1 is recorded.

[0038] In summary, this application has the following beneficial technical effects:

[0039] The embodiment of the present application obtains the dimensional data of the workpiece by using photoelectric sensing, eliminating the need for manual measurement by the operator, thereby improving the measurement efficiency and reducing the measurement error. In addition, the present application performs an origin calibration action before executing the punching program to reduce the error caused by the offset of various components in the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 Punching machine workpiece automatic identification system control block diagram;

[0041] Figure 2 Structural layout of punching machine workpiece automatic identification system;

[0042] Figure 3 Schematic diagram of the punching machine's automatic origin recognition structure;

[0043] Figure 4 Diagram of the punching machine positioning plate action structure in the lifted state;

[0044] Figure 5 Schematic diagram of the automatic unloading channel for punching waste;

[0045] Figure 6 Schematic diagram of transportation in combination with a retractable automatic lifting trolley.

[0046] Figure numerals: 1. Positioning plate; 2. Electric push rod fixing bracket 1; 3. Positioning support vertical plate; 4. Electric push rod; 5. Flippable positioning plate; 6. Wire clamp; 7. Light curtain sensor; 8. Buffer spring; 9. Lifting mechanism electric push rod; 10. Transmitter 1; 11. Transmitter 2; 12. Receiver 1; 13. Receiver 2; 14. Proximity sensor 1; 15. Proximity sensor 2; 16. Waste guide groove; 17. Waste collection box; 18. Automatically retractable and liftable mobile trolley; 19. Punching machine; 20. Pickup truck. DETAILED DESCRIPTION

[0047] The present application is further described in detail below with reference to the accompanying drawings.

[0048] In order to more clearly understand the technical solutions presented in the embodiments of the present application, a brief introduction to the existing fully automatic hydraulic punching machine is first given.

[0049] The fully automatic hydraulic punching machine can replace manual punching of wire clamps on site to solve many problems of on-site punching during power transmission and transformation and on-site construction. It improves construction efficiency, reduces unsafe hidden dangers during construction, and improves punching accuracy. However, in actual application, there are still some problems:

[0050] First, the specifications of the wire clamp need to be measured and determined, and then punched according to the standard procedure, which is a waste of time;

[0051] Second, if the equipment is affected by external forces and any of the clamping parts, moving parts or punching machines has a certain offset, the zero point position will change and the punching accuracy will be affected.

[0052] In order to solve the above technical problems, the embodiment of the present application provides a method for automatically identifying workpieces of a fully automatic hydraulic punching machine with a wire clamp, comprising the following steps:

[0053] Step S101: establishing a dimension data set and a punching program data set for a wire clamp, wherein the elements in the dimension data set are the dimension data of the wire clamp, the dimension data of the workpiece include the length and width of the workpiece, and the elements in the punching program data set are the punching programs for the wire clamp. Each element in the dimension data set corresponds to an element in the punching program data set, i.e., each element in the dimension data set corresponds to an element in the punching program data set. Each workpiece represented by the dimension data set has a specific punching program, and the punching program includes the number, size, and spacing of the punched holes.

[0054] Step S102: Acquire the dimensional data of the current workpiece clamped on the clamping mechanism, wherein the dimensional data of the current workpiece includes length dimensional data and width dimensional data. Specifically, acquiring the dimensional data of the current workpiece includes the following steps:

[0055] Step S201: A measuring light curtain is emitted toward the current workpiece location. The measuring light curtain is a grating formed by a series of parallel and equally spaced light rays. That is, the measuring light curtain is a number of light rays with equal distances between each other. When an object passes through the measuring light curtain, the specific size of the object can be calculated by measuring the number of light rays blocked by the object.

[0056] Step S202: Obtain the amount of light blocked by the current workpiece. In actual application, a transmitter emits a series of light rays, and a receiver receives the light rays to determine the amount of light rays. When an object passes through the grating, it blocks part of the light rays, causing the receiver to be unable to receive the light signals of the blocked part.

[0057] Step S203: Calculate the size data of the current workpiece by the amount of light blocked by the current workpiece. The size data of the current workpiece includes width data and length data. This process does not require manual measurement by the operator, which increases measurement efficiency and accuracy.

[0058] Step S103: calling a punching program in a punching program data set corresponding to the current workpiece according to the size data of the current workpiece, matching the type of the current workpiece with the size data of the current workpiece, selecting a punching pattern required for the current workpiece type, and selecting a punching program corresponding to the punching pattern required for the current workpiece;

[0059] Step S104: calibrating the device origin. Specifically, the calibrating the device origin includes:

[0060] Step S401: Horizontally moving the clamping mechanism, which is used in the device to clamp the current workpiece;

[0061] Step S402: Acquire the sensing signal of the vertical arm of the clamping mechanism, and record the current X-axis coordinate point X1 when the sensing signal of the vertical arm of the clamping mechanism changes from being present to being absent;

[0062] Step S403: vertically moving the clamping mechanism;

[0063] Step S404: Acquire the sensing signal of the horizontal arm of the clamping mechanism, and when the sensing signal of the vertical arm of the clamping mechanism changes from being present to being absent, record the current Y-axis coordinate point Y1;

[0064] Step S405: Based on the acquired coordinate point (X1, Y1), the coordinate position of the origin of the current workpiece relative to the entire system is calculated. By setting a proximity sensor in the device, the proximity sensor senses the relative position of the clamping mechanism, thereby achieving automatic calibration of the device origin, effectively improving the accuracy of the device punching process;

[0065] Step S105: executing the punching program. Specifically, calibrating the origin of the punching program according to the acquired coordinate point (X1, Y1), and executing the punching program corresponding to the current workpiece size with the calibrated origin as the reference point.

[0066] In general, the embodiment of the present application obtains the dimensional data of the workpiece by using photoelectric sensing, eliminating the need for manual measurement by the operator, thereby improving measurement efficiency and reducing measurement errors. In addition, the present application performs an origin calibration action before executing the punching program to reduce the errors caused by the offset of various components in the equipment.

[0067] The present application also provides an automatic workpiece identification system for a fully automatic hydraulic punching machine with a wire clamp, including:

[0068] A main control board is used to establish a size data set and a punching program data set for the wire clamp, and is also used to call a punching program in the punching program data set corresponding to the current workpiece according to the size data of the workpiece and execute the punching program;

[0069] A first measuring device is used to obtain the dimensional data of the current workpiece;

[0070] The second measuring device is used to calibrate the device origin.

[0071] The first measuring device can quickly and accurately measure the dimensional data of the current workpiece without the need for manual measurement by the operator, which significantly improves the efficiency and accuracy of on-site measurement. The second measuring device is set to calibrate the origin of the equipment, reducing the problem of reduced punching accuracy caused by changes in the shape and position of the internal components of the equipment.

[0072] like Figure 1 As shown, the first measuring device includes:

[0073] An emitter is used to emit a measuring light curtain toward the current workpiece location, wherein the measuring light curtain is a plurality of light beams with equal distances between each other;

[0074] The receiver is used to obtain the amount of light blocked by the current workpiece;

[0075] The processor is used to calculate the size data of the current workpiece based on the amount of light blocked by the current workpiece, and the size data of the current workpiece includes width data and length data. The processor sends the calculated data to the main control board through the RS232 interface. The main control board executes the corresponding punching program of the wire clamp based on the received size of the wire clamp;

[0076] In actual use, the first measuring device can be Figure 1 The light curtain sensor shown;

[0077] Wherein, a transmitter and a receiver form a measurement group, and the first measurement device has two measurement groups, one of which is used to measure the length of the current workpiece, and the other is used to measure the width of the current workpiece;

[0078] Reference Figure 1-Figure 3 , one measurement group includes a transmitter 10 and a receiver 11; the other measurement group includes a transmitter 2 12 and a receiver 2 13;

[0079] The transmitter emits infrared or visible light, forming a series of parallel, equally spaced rays. These rays form a grating in space. When an object passes through the grating, it blocks some of the light, preventing the receiver from receiving the blocked light signal. The processor calculates the object's dimensions based on the changes in the received signal.

[0080] The measuring light curtain uses a top-down beaming method to measure dimensions. When a wire clamp is placed on the operating table, it blocks the infrared light emitted by the light curtain's infrared transmitter, causing the width of the infrared light received by the infrared receiver to change. The processor calculates the length and width of the wire clamp based on this change in the width of the received infrared light.

[0081] like Figure 2 and 3 As shown, the second measuring device includes:

[0082] a control system for controlling the horizontal and vertical movement of the clamping mechanism;

[0083] A proximity sensor 14 is used to obtain the sensing signal of the vertical arm of the clamping mechanism. When the sensing signal of the vertical arm of the clamping mechanism changes from being present to being absent, the current X-axis coordinate point X1 is recorded.

[0084] The second proximity sensor 15 obtains the sensing signal of the horizontal arm of the clamping mechanism. When the sensing signal of the vertical arm of the clamping mechanism changes from being present to being absent, the current Y-axis coordinate point Y1 is recorded.

[0085] In some possible implementations of the present invention, a proximity sensor is placed on the fixed base of the punching machine. When the device is powered on, the control system moves the clamping mechanism horizontally while continuously monitoring the proximity sensor at that location. When the sensor senses the clamping arm, also known as the vertical arm, the control system slowly moves the clamping mechanism horizontally. When the sensor's sensing signal changes from positive to negative, the clamping vertical arm has just passed the proximity sensor, and the control board needs to save the current X-axis coordinate point X1.

[0086] After saving the X1 coordinate point, the control system moves the clamping mechanism vertically while continuously detecting the proximity sensor at that location. When the sensor senses the clamping arm, also known as the cross arm, the control system slowly moves the clamping mechanism in the opposite vertical direction. When the sensor's sensing signal changes from being present to being absent, the control board needs to save the current Y-axis coordinate point, Y1.

[0087] Since the fixed position of the sensor is constant relative to the punching position of the punching machine, the position of the punching machine can be found by measuring the position of the sensor. Then, based on the coordinate point (X1, Y1), the origin of the wire clamp currently clamped by the clamping arm can be calculated. The upper left corner is defined as the origin, and the coordinate position relative to the entire system is determined.

[0088] The control system can calibrate the origin of the clamping mechanism by calculating the coordinate point position. This calibration method can avoid the deviation of the clamping mechanism during the movement of the equipment, which may cause certain errors in the punching position and improve the punching accuracy.

[0089] Two proximity sensors are fixed to the base of the punching machine. When the machine is powered on, the control system moves the clamping mechanism horizontally while continuously monitoring the proximity sensors at that location. Since the sensors' fixed positions relative to the punching machine's punching positions remain constant, the punching machine's position can be determined by measuring the sensors' positions.

[0090] like Figure 4 As shown, in order to adapt to wire clamps of different specifications and shapes, for example, the handle of some wire clamps interferes with the positioning plate, and the applicability of the clamping and positioning mechanism is relatively poor, an automatic lifting device for the positioning plate is added in the embodiment of the present application. In addition, an electric push rod and an automatic flipping mechanism are used. When the positioning plate is positioned before punching begins, the positioning plate is lowered. In this way, wire clamps of various specifications are adapted without interference, and the process of clamping the workpiece and feeding is ensured to be not interfered with by the clamping device, which has stronger adaptability.

[0091] For the automatic lifting device of the positioning plate, Figure 2 and Figure 4As shown, the punching machine is fixed at the bottom through the positioning plate right-angle fixing part 1 to fix the positioning support vertical plate 3, and the two right-angle sides of the positioning plate right-angle fixing part 1 are respectively fixed to the fixed bottom of the punching machine and the positioning support vertical plate 3, and an electric push rod 4 is installed on one side of the positioning support vertical plate 3 through an electric push rod fixing bracket 2. The top of the positioning support vertical plate 3 is rotatably connected to the flip positioning plate 5, and the end of the electric push rod 4 away from the electric push rod fixing bracket 2 is the telescopic end. The telescopic end of the electric push rod 4 is hinged to the bottom of the flip positioning plate 5. When the telescopic end of the electric push rod 4 is extended or retracted, the angle between the positioning support vertical plate 3 and the flip positioning plate 5 is adjusted, so that the position of the wire clamp 6 placed on the flip positioning plate 5 is adjusted, and a buffer spring 8 can be set on the electric push rod 9 of the lifting mechanism that drives the wire clamp 6 to rise and fall to achieve buffering.

[0092] The clamping process requires a positioning plate for horizontal positioning before clamping can be implemented. An electric push rod is added below the positioning platform. One end of the electric push rod is fixed to the positioning support vertical plate through the electric push rod fixing bracket, and the other end is fixed to the bottom of the reversible positioning plate. The positioning plate is hinged to the vertical plate through a hinge. When the equipment is initially turned on, the positioning plate is raised to facilitate the positioning of the workpiece. After the workpiece is clamped, the reversible positioning plate is lowered, and the wire clamp moves with the clamping mechanism and the moving mechanism to the position where the punching is required. This improves the adaptability of punching.

[0093] like Figure 5 As shown, an automatic discharge channel for punching waste, namely a waste guide groove 16, is added, and the waste is automatically collected in a waste collection box 17, which reduces the workload of waste cleaning after operation of a traditional bench drill or ordinary punching machine, improves operation efficiency, and improves operation standardization.

[0094] like Figure 6 As shown, the fully automatic punching machine 19 is combined with an automatically retractable and liftable mobile trolley 18, which can automatically get on and off the pickup truck 20, saving manpower and facilitating transportation to the construction site. Moreover, one person can operate it, thereby enhancing practicality and reducing labor intensity.

[0095] The embodiments of this specific implementation method are all preferred embodiments of the present application and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. The automatic identification method of the workpiece of the equipment wire clamp fully automatic hydraulic punching machine is characterized by: The steps include: Establishing a dimension data set for the wire clamp and a punching program data set, wherein the elements in the dimension data set are the dimension data of the wire clamp, the dimension data of the workpiece include the length and width of the workpiece, and the elements in the punching program data set are the punching programs of the wire clamp, and each element in the dimension data set corresponds to an element in the punching program data set; Get the size data of the current workpiece; Calling the punching program in the punching program data set corresponding to the current workpiece according to its size data; Calibrate the device origin; Execute the punching procedure.

2. The method for automatically identifying workpieces of a fully automatic hydraulic punching machine for a wire clamp according to claim 1 is characterized in that: The obtaining of the dimension data of the current workpiece includes: Sending a measuring light curtain to the current workpiece location, wherein the measuring light curtain is a plurality of light beams with equal distances between each other; Get the amount of light blocked by the current workpiece; The size data of the current workpiece is calculated according to the amount of light blocked by the current workpiece, where the size data of the current workpiece includes width data and length data.

3. The method for automatically identifying workpieces of a fully automatic hydraulic punching machine for a wire clamp according to claim 1 is characterized in that: The calibration device origin includes: Horizontally move the clamping mechanism for clamping the current workpiece; Obtain the sensing signal of the vertical arm of the clamping mechanism. When the sensing signal of the vertical arm of the clamping mechanism changes from being present to being absent, record the current X-axis coordinate point X1. vertically movable clamping mechanism; Obtain the sensing signal of the horizontal arm of the clamping mechanism. When the sensing signal of the vertical arm of the clamping mechanism changes from being present to being absent, record the current Y-axis coordinate point Y1. Based on the acquired coordinate point (X1, Y1), the coordinate position of the origin of the current workpiece relative to the entire system is calculated.

4. The method for automatically identifying workpieces of a fully automatic hydraulic punching machine with a wire clamp according to claim 3 is characterized in that: The punching program includes: Calibrate the origin of the punching program according to the obtained coordinate point (X1, Y1); The punching program corresponding to the current workpiece size is executed with the calibrated origin as the reference point.

5. Equipment wire clamp fully automatic hydraulic punching machine workpiece automatic identification system, characterized by, include: A main control board is used to establish a size data set and a punching program data set for the wire clamp, and is also used to call a punching program in the punching program data set corresponding to the current workpiece according to the size data of the workpiece and execute the punching program; A first measuring device is used to obtain the dimensional data of the current workpiece; The second measuring device is used to calibrate the device origin.

6. The automatic identification system for workpieces of a fully automatic hydraulic punching machine for equipment wire clamps according to claim 5 is characterized in that: The first measuring device comprises: An emitter is used to emit a measuring light curtain toward the current workpiece location, wherein the measuring light curtain is a plurality of light beams with equal distances between each other; The receiver is used to obtain the amount of light blocked by the current workpiece; The processor is used to calculate the size data of the current workpiece according to the amount of light blocked by the current workpiece, wherein the size data of the current workpiece includes width data and length data.

7. The automatic identification system for a wire clamp fully automatic hydraulic punching machine according to claim 6 is characterized in that: A transmitter and a receiver form a measuring group. The first measuring device has two measuring groups, one of which is used to measure the length of a current workpiece, and the other is used to measure the width of the current workpiece.

8. The automatic identification system for a wire clamp fully automatic hydraulic punching machine according to claim 5 is characterized in that: The second measuring device comprises: a control system for controlling the horizontal and vertical movement of the clamping mechanism; Proximity sensor 1 is used to obtain the sensing signal of the vertical arm of the clamping mechanism. When the sensing signal of the vertical arm of the clamping mechanism changes from being present to being absent, the current X-axis coordinate point X1 is recorded. Proximity sensor 2 obtains the sensing signal of the horizontal arm of the clamping mechanism. When the sensing signal of the vertical arm of the clamping mechanism changes from being present to being absent, the current Y-axis coordinate point Y1 is recorded.

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