CN116038644A - Automatic scribing equipment and method for large-scale plate structural parts - Google Patents

Abstract

The invention discloses automatic scribing equipment and a scribing method for large-scale plate structural members, which comprise a supporting platform, wherein the supporting platform is provided with an adjusting and positioning mechanism and a positioning piece, the side part of the supporting platform is provided with a control system, and a transmission system is arranged above the supporting platform; the transmission system is provided with an automatic code spraying machine and a servo motor, and the control system converts the scribing graph into execution codes to drive the automatic code spraying machine to work. The invention realizes the rapid and automatic scribing of the important positioning size of the large structural member by the automatic code spraying machine and the universal scribing equipment controlled by the servo system, saves labor cost, improves production efficiency, and can meet the scribing production requirements of various plate structural members.

Description

Automatic scribing equipment and scribing method for large-scale plate structural parts

technical field

The invention relates to a marking device, in particular to an automatic marking device and a marking method for a large plate structure.

Background technique

In the construction machinery industry, there are many large plate-type structural parts, on which various small workpieces are attached, such as ribs, partitions, nut columns, etc., ranging from a dozen to hundreds of types. The structural molding of large structural parts is inseparable from the assembly process, which mainly combines the scattered workpieces according to the size requirements. The first step in the assembly process is to mark the positioning dimensions of each workpiece on the main workpiece.

The existing technology is mainly based on people. A general platform is set on site as a plane reference. Workers use box rulers, angle rulers, stone pens and other main tools to mark out the position of each positioning workpiece according to the product drawing, and then place the workpieces to be assembled on the Corresponding marking position, and finally fixed by spot welding. The height of the platform is about 300-600mm. Workers need to consult the positioning dimensions of the workpiece in the drawings, and then bend down and maintain a squatting posture for marking operations; for some new products, the positioning dimensions are not familiar, and the actions of consulting drawings and bending will be more frequent , the labor intensity is high, and there are omissions and mistakes in human operation. Specifically, it has the following disadvantages:

1. Poor dimensional positioning consistency: the existing technology draws the positioning line artificially. Due to different operation methods and reading methods of different people, the marking position will be deviated, which directly affects the spot welding position of the positioning plate, that is, the size Positioning consistency is poor. 2. Low work efficiency: There are many auxiliary workpieces in large structural parts, and positioning lines are needed to determine the relative position. The marking time for each product ranges from 10 minutes to 30 minutes, and each shift needs to produce 4-6 products. The marking process itself does not generate value, and it is an invalid time for the production process. 3. High labor intensity: The whole process involves a high degree of personnel participation and many movements. It is necessary to frequently perform difficult postures such as bending and squatting, which account for more than 30% of the process time and belong to level 4 labor intensity. 4. High skill requirements: The marking process requires operators to have certain drawing and marking skills. Many people may not be able to meet the requirements even after two weeks of training.

Contents of the invention

Purpose of the invention: Aiming at the deficiencies and defects of the prior art, the present invention provides an automatic scribing device and a scribing method for large-scale plate structural parts. The important positioning dimensions of large structural parts are quickly and automatically marked, which saves labor costs, improves production efficiency, and can adapt to the marking production requirements of various plate structural parts.

Technical solution: An automatic scribing equipment for large-scale plate structural parts of the present invention is characterized in that it includes a support platform, the support platform is provided with an adjustment and positioning mechanism and positioning parts, the side of the support platform is provided with a control system, and the top of the support platform is provided with a control system. There is a transmission system; the transmission system is equipped with an automatic inkjet printer and a servo motor, and the control system converts the line drawing into execution codes to drive the automatic inkjet printer to work.

Wherein, the support platform is the main structure of the scribing equipment, and the support platform is a box-shaped structure formed by tailor-welded plates or a platform structure made of cast iron; large structural parts are placed on the support platform, and the large structural parts are machined to The plane meets the flatness requirements, and the workpiece positioning reference and transmission system installation reference are obtained; the support platform is the carrier and reference for the transmission system, servo motor and workpiece positioning.

Wherein, the transmission system is a transmission component for motion execution. The transmission system is provided with slide rails, rack and pinion, support base, bearings and guide wheels. The transmission system drives the marking nozzle of the automatic inkjet printer to continuously sports.

Wherein, the positioning part is the positioning reference of the large-scale structural parts on the support platform, and the contact surfaces of the positioning part, the support platform and the large-scale structural parts are obtained by machining, and are connected with the support platform through assembly or welding. The Y side and the processing surface of the positioning part fit together to ensure the relative positional relationship between the structural part and the supporting platform and provide a benchmark for marking.

Wherein, the adjustment and positioning mechanism is provided with a winch, a hook, a wire rope and a support frame, the support frame is fixed on the ground, a one-way locking ratchet mechanism is provided in the winch, the winch is fixed on the side of the positioning member, and the lower plane of the winch is in contact with the The upper plane of the support platform is flush, and the winch is connected to the large structural parts through hooks; turn the hand wheel of the winch to make the large structural parts fit with the positioning parts in the X and Y directions for accurate positioning.

Wherein, the automatic inkjet printer is equipped with a touch display screen, an ink compartment, a printing nozzle and an electrical compartment, the printing nozzle is located at the movable end of the transmission system and is perpendicular to the support platform, and the printing nozzle performs spraying under the command of the control system. The ink is driven by the transmission system, and the ink is jogged to form a line to complete the marking.

Wherein, the control system is a command sending and receiving mechanism, and the control system is equipped with a power supply, a servo driver, a PLC, an industrial computer, a display, a sensor and control buttons, and the control system drives the servo motor according to the program to act according to the command and receives and processes the sensor feedback. data.

When in use, hoist the large structural parts on the support platform, hook the large structural parts with the hook for adjusting the positioning structure, and rotate the handwheel on the winch for adjusting the positioning structure, so that the end face of the large structural part fits with the positioning part, and the The function of positioning; through the control system, the printing nozzle of the automatic inkjet printer is carried to the starting point of the equipment, the marking machine automatically finds the zero point of the workpiece, loads the preset marking size in the control system, and the servo motor presses the button after clicking the start button. The instruction drives the automatic inkjet printer to perform marking operations on large structural parts through the transmission system.

Beneficial effects: Compared with the prior art, the present invention has the following significant advantages: 1. Accurate and stable: the marking position is accurately and controllable by using servo system control, and the marking line width of the automatic inkjet printer is controllable, eliminating human participation Operating errors in the process improve the consistency of the scribed line size. 2. Simple and efficient: no need for operators to frequently consult drawings or memorize positioning dimensions, which improves production efficiency and avoids the phenomenon of missing and wrong marking of positioning dimensions caused by human operation errors to the greatest extent. 3. Reduce human labor intensity: employees only need to stand in a standing position to operate the industrial computer, eliminating the need for high labor-intensive actions such as bending and squatting. 4. Reduce the technical requirements for operators: only need to be familiar with the button operation of the automatic line marking equipment, eliminating the need to look at the pictures and frequently consult the invalid actions of the workpiece size.

Description of drawings

Fig. 1 is a structural representation 1 of the present invention;

Fig. 2 is a structural representation 2 of the present invention;

In the figure, 1 is a support platform, 2 is a transmission system, 3 is a positioning member, 4 is an adjustment positioning mechanism, 5 is an automatic inkjet printer, 6 is a control system, and 7 is a servo motor.

Detailed ways

The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

Some key terms of the present invention are defined as follows: 1. Structural parts: refer to various components that can constitute building installation engineering entities after hoisting, assembling and installation, including various metals, reinforced concrete, concrete and wood structure. This patent mainly refers to structural parts welded by metal. 2. Assembly process: The structural parts welded by metal need to determine the relative positional relationship of each small workpiece in the structural parts by scribing first, and then fix the position by welding torch spot welding. 3. Servo positioning: The servo control system composed of servo motor, PLC, industrial computer, sensor and transmission system can accurately position the actuator. The servo positioning system can adapt to the positioning of various products. The positioning size data can be based on product data programmed in advance. 4. Automatic inkjet printer: It can print various fixed and variable codes at high line speed on consumer products and industrial products, such as product production date, manufacturer, batch, two-dimensional code and other information, according to the principle of inkjet It can be divided into laser printing and ink printing.

The present invention provides an automatic scribing device for large-scale plate structures, which includes a support platform 1, an adjustment positioning mechanism 4 and a positioning member 3 are provided on the support platform 1, a control system 6 is provided on the side of the support platform 1, and a control system 6 is provided on the top of the support platform 1. There is a transmission system 2; the transmission system 2 is equipped with an automatic inkjet printer 5 and a servo motor 7, and the control system 6 converts the line drawing into execution codes to drive the automatic inkjet printer 5 to work. Among them, the support platform 1 is the main structure of the scribing equipment, and the support platform 1 is a box-shaped structure made of plate tailor-welded or a platform structure made of cast iron; large structural parts are placed on the support platform 1, and the large structural parts The plane meets the flatness requirements, obtains the workpiece positioning datum and the transmission system 2 installation datum; the support platform 1 is the carrier and datum of the transmission system 2, the servo motor 7 and the workpiece positioning. The transmission system 2 is the transmission part for motion execution. The transmission system 2 is equipped with slide rails, rack and pinions, support bases, bearings and guide wheels. The transmission system 2 drives the marking nozzle of the automatic inkjet printer 5 to move continuously in the X and Y directions . The positioning part 3 is the positioning reference of the large structural parts on the supporting platform 1. The contact surfaces of the positioning part 3, the supporting platform 1 and the large structural parts are obtained by machining, and are connected with the supporting platform 1 by assembly or welding. The upper part of the workpiece is X and Y are in contact with the processing surface of the locator 3 to provide a benchmark for marking. The adjustment and positioning mechanism 4 is provided with a winch, a hook, a wire rope and a support frame. The support frame is fixed on the ground, and a one-way locking ratchet mechanism is provided in the winch. The upper plane of the winch is flush with each other, and the winch is connected with the large structural part through a hook; the handwheel of the winch is turned to make the large structural part and the positioning part 3 fit in the X and Y directions for accurate positioning. The automatic printer 5 is equipped with a touch screen, an ink compartment, a print nozzle and an electrical compartment, the print nozzle is located at the movable end of the transmission system 2 and is perpendicular to the support platform 1, and the print nozzle performs ink jetting under the instructions of the control system 6 , driven by the transmission system 2, jogging to form a line to complete the marking. The control system 6 is a command sending and receiving mechanism. The control system 6 is equipped with a power supply, a servo driver, PLC, an industrial computer, a display, sensors and control buttons. The control system 6 drives the servo motor 7 according to the program to act according to the command and receives and processes the data fed back by the sensor. .

When in use, hoist the large structure on the support platform 1, hook the large structure with the hook of the adjustment positioning structure 4, and adjust the hand wheel on the winch of the positioning structure 4 by turning the end face of the large structure to align with the positioning member 3 Fitting to play the role of positioning; through the control system 6, the printing nozzle of the automatic inkjet printer 5 is carried to the starting point of the equipment, and the marking machine automatically finds the zero point of the workpiece, and loads the preset marking size in the control system 6. After clicking the start button, the servo motor 7 drives the automatic inkjet printer 5 through the transmission system 2 to perform marking operations on large structural parts according to instructions.

Further, the positioning member 3 and the adjustment and positioning mechanism 5 can be replaced by positioning blocks driven by hydraulic pressure or electric motors. The scope of application can be the assembly and marking process of construction machinery such as cranes, pump trucks, fire trucks, etc., which have large bottom plates and cover a large number of small parts or partitions on the surface.

Compared with the existing problems in the existing technology: 1. Poor consistency of size positioning: the existing technology draws the positioning line artificially, and the position of the marking line is deviated due to different operation methods and reading methods of different people, which directly affects the positioning plate The spot welding position of the parts, that is, the poor consistency of size positioning. 2. Low work efficiency: There are many auxiliary workpieces in large structural parts, and positioning lines are needed to determine the relative position. The marking time for each product ranges from 10 minutes to 30 minutes, and each shift needs to produce 4-6 products. The marking process itself does not generate value, and it is an invalid time for the production process. 3. High labor intensity: The whole process involves a high degree of personnel participation and many movements. It is necessary to frequently perform difficult postures such as bending and squatting, which account for more than 30% of the process time and belong to level 4 labor intensity. 4. High skill requirements: The marking process requires operators to have certain drawing and marking skills. Many people may not be able to meet the requirements even after two weeks of training.

The automatic scribing equipment and scribing method for large-scale plate structural parts of the present invention solve the above problems in a targeted manner: 1. Solve the problem of size positioning consistency: through the application of this invention, the influence of accidental errors in personnel operations on the accuracy of the workpiece assembly point is eliminated, Realize the improvement of the repeated marking accuracy of the workpiece, and solve the problem of poor consistency of workpiece size positioning. 2. Solve the manufacturing bottleneck process problem: cancel manual marking, reduce marking time, that is, reduce the process manufacturing time of a single product, and achieve the purpose of improving manufacturing efficiency. 3. Solve the problem of high labor intensity: Eliminate labor-intensive tasks such as marking lines and bending over during workpiece positioning, and the reserved actions are upper and lower parts, and the workpiece is fixed by spot welding and self-inspection by electric welding machine. 4. Solve the problem of high skill requirements for personnel: operate buttons instead of reading and drawing lines, and the requirements for people are reduced from two skills of marking lines and spot welding to only one skill of spot welding.

Therefore, the following beneficial effects are produced: 1. Accurate and stable: the servo system control is used to make the scribing position accurate and controllable, and the scribing width of the automatic inkjet printer is controllable, eliminating the operation error in the process of human participation, and improving the consistency of the scribing size sex. 2. Simple and efficient: no need for operators to frequently consult drawings or memorize positioning dimensions, which improves production efficiency and avoids the phenomenon of missing and wrong marking of positioning dimensions caused by human operation errors to the greatest extent. 3. Reduce human labor intensity: employees only need to stand in a standing position to operate the industrial computer, eliminating the need for high labor-intensive actions such as bending and squatting. 4. Reduce the technical requirements for operators: only need to be familiar with the button operation of the automatic line marking equipment, eliminating the need to look at the pictures and frequently consult the invalid actions of the workpiece size.

Claims (8)

1. A large-scale plate structure automatic scribing equipment, characterized in that: it includes a support platform (1), the support platform (1) is provided with an adjustment and positioning mechanism (4) and a positioning member (3), the support platform (1) A control system (6) is provided on the side, and a transmission system (2) is provided above the supporting platform (1); the transmission system (2) is provided with an automatic inkjet printer (5) and a servo motor (7), and the control system ( 6) Convert the line drawing into execution code to drive the work of the automatic inkjet printer (5). 2. The automatic scribing equipment for large-scale plate structures according to claim 1, characterized in that: the support platform (1) is the main structure of the scribing equipment, and the support platform (1) is a box made of tailor-welded plates Type structure or platform structure made of cast iron; large structural parts are placed on the support platform (1), and the upper plane of large structural parts meets the flatness requirements through machining, and the workpiece positioning reference and transmission system (2) installation reference are obtained; The supporting platform (1) is a carrier and a reference for positioning the transmission system (2), the servo motor (7) and the workpiece. 3. The automatic scribing equipment for large-scale plate structures according to claim 1, characterized in that: the transmission system (2) is a transmission component for motion execution, and the transmission system (2) is provided with slide rails, gear teeth Strips, support bases, bearings and guide wheels, the transmission system (2) drives the marking nozzle of the automatic inkjet printer (5) to move continuously along the X and Y directions. 4. The automatic scribing equipment for large-scale structural parts according to claim 1, characterized in that: the positioning part (3) is the positioning reference of the large-scale structural parts on the support platform (1), and the positioning part (3) The contact surfaces with the support platform (1) and large structural parts are all obtained by machining, and connected with the support platform (1) by assembly or welding, and the X and Y aspects of the upper part of the workpiece are attached to the processing surface of the positioning part (3) , to provide a basis for the dash. 5. The automatic scribing equipment for large-scale plate structures according to claim 1, characterized in that: the adjustment and positioning mechanism (4) is provided with a winch, a hook, a steel wire rope and a support frame, and the support frame is fixed on the ground, A one-way locking ratchet mechanism is provided in the winch, the winch is fixed on the side of the positioning member (3), the lower plane of the winch is flush with the upper plane of the support platform (1), and the winch is connected with the large structural parts through hooks; The handwheel makes the large structural part and the positioning part (3) fit in the X and Y directions for accurate positioning. 6. The automatic scribing equipment for large plate structural parts according to claim 1, characterized in that: the automatic inkjet printer (5) is provided with a touch display screen, an ink compartment, a printing nozzle and an electrical compartment, The printing nozzle is located at the movable end of the transmission system (2) and is perpendicular to the support platform (1). The printing nozzle ejects ink under the command of the control system (6), driven by the transmission system (2), and jogging to form a line to complete the marking . 7. The automatic scribing equipment for large plate structures according to claim 1, characterized in that: the control system (6) is an instruction sending and receiving mechanism, and the control system (6) is provided with a power supply, a servo driver, a PLC, The industrial computer, the display, the sensor and the control button, the control system (6) drives the servo motor (7) to act according to the instruction according to the program and receives and processes the data fed back by the sensor. 8. Use the scribing method of the automatic scribing equipment for large-scale plate structure parts described in any one of claims 1-7: the large-scale structural parts are hoisted on the support platform (1), and the positioning structure (4) is adjusted The hook hooks the large structural part, and adjusts the hand wheel on the winch of the positioning structure (4) by turning, so that the end surface of the large structural part fits with the positioning part (3) to play a positioning role; through the control system (6), the The printing nozzle of the automatic inkjet printer (5) advances to the starting point of the equipment, the marking machine automatically finds the zero point of the workpiece, loads the preset marking size in the control system (6), and after clicking the start button, the servo motor (7) presses The command drives the automatic inkjet printer (5) through the transmission system (2) to perform marking operations on large structural parts.

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