CN113732703B - An automatic welding and trimming supporting device for a screen and a welding and trimming method - Google Patents

Abstract

The invention discloses an automatic welding and trimming supporting device for a screen and a welding and trimming method. A large rotary support with a support table is provided on the base, and a tooling mold is set on the support table; a lower clamping installation frame, an upper clamp The tight mounting frame is set on the support platform. The lifting cylinder on the support platform is connected to the lower clamping mounting frame. The lower clamping mounting frame is equipped with a lower clamping ring. The upper clamping mounting frame is equipped with a clamping cylinder. The clamping cylinder It is connected to the lower clamping installation frame, and the upper clamping installation frame is equipped with an upper clamping ring; the middle part of the upper frame bracket is equipped with a compression cylinder, the compression cylinder is connected with a small slewing bearing, and the lower end of the small slewing bearing is equipped with a pressure plate; on the upper frame A horizontal linear module is installed on the bracket, a longitudinal linear module is installed on the horizontal linear module, and a roller welding machine and an angle grinder are installed on the longitudinal linear module. The invention realizes the automatic welding and trimming of the screen through the steps of initial reset of the equipment - clamping of the mesh - compression of the mesh frame - welding of the mesh frame - trimming of the mesh - reset of the equipment, with high efficiency and high product quality. stable quality.

Description

An automatic welding and trimming supporting device for a screen and a welding and trimming method

Technical field

The present invention relates to welding and trimming of screens, and in particular to a matching device for automatic welding and trimming of screens. The invention also relates to a welding and trimming method for the matching device.

Background technique

Screens are now widely used in automatic screening machines. At present, most of my country's screen production relies on manual labor. First, the mesh is made by manually cutting and rolling it into a circle. Then, the cut mesh is manually placed on the fixture, the upper pressure plate is pressed, a circle of bolts is fixed to clamp the mesh, and then the excess Cut off the mesh, place the mesh frame under the clamp, then use the pressure plate to fix the clamp and mesh frame together, then tighten the mesh, and then weld the mesh with melted tin liquid to weld the mesh to the mesh frame. Then loosen the pressure plate, loosen a circle of bolts to separate the upper and lower clamps, then cut off the excess mesh and polish it. The entire production process requires two workers to collaborate at the same time. The entire production process is labor intensive, low in work efficiency, high in labor costs, and cannot ensure the stability and consistency of product quality.

Contents of the invention

The technical problem to be solved by the present invention is to provide a semi-automatic assembly, fully automatic compression of mesh, fully automatic welding of mesh, and automatic mesh welding and trimming supporting device and welding and trimming method for fully automatic mesh cutting. Four specifications of grid products can be produced at the same time. The production of products of different specifications only needs to be replaced by molds, thereby reducing labor intensity, improving work efficiency, improving product quality stability and consistency, achieving flexible production of products, and reducing tooling costs. production costs.

In order to solve the above technical problems, the technical solution adopted by the present invention is: a screen automatic welding and trimming supporting device, including a base and an upper frame bracket on the base, a large rotation support is provided on the base, and a large rotation support is provided on the base. There is a support table on the upper part, and a tooling mold is set on the support table; the lower clamping installation frame and the upper clamping installation frame located above the lower clamping installation frame are both inserted into the uprights of the support table, and the two symmetrical mounting frames are symmetrically arranged on the support table. The piston rod end of the jacking cylinder is connected to the lower clamping installation frame, and the lower clamping installation frame is provided with a lower clamping ring; the upper clamping installation frame located above the lower clamping installation frame is evenly provided with multiple clamping cylinders, each The piston rod end of the clamping cylinder is connected to the lower clamping installation frame, and the upper clamping installation frame is equipped with an upper clamping ring; a compression cylinder is located in the middle of the upper frame bracket, and a small slewing bearing is connected to the piston rod end of the compression cylinder. , a pressure plate is set on the lower end of the small slewing bearing, and the pressure plate is located between the frames of the upper clamping installation frame; a transverse linear module driven by a transverse linear module servo motor is set on the upper frame bracket, and a longitudinal straight line is set on the transverse linear module The longitudinal linear module driven by the module servo motor has a roller welding machine and an angle grinder installed on the longitudinal linear module; the controller installed in the control cabinet controls the control connections of each part.

There are two groups of symmetrical columns on the support platform, with two columns in each group. Guide columns are provided on both sides of each group of columns on the support table. The lower clamping installation frame is inserted into the four columns and the four guide columns. On the top, guide column mounting plates are connected to the upper parts of the two guide columns next to each group of columns.

The large slew support is driven by a servo motor installed on the base through the gear at the output end of the reducer, driving the large slew support to rotate ±360°, and its electrical circuit is connected through an electronic slip ring.

The upper clamping ring is connected to the upper clamping installation frame through a plurality of upper clamping ring positioning blocks, and the lower clamping ring is connected to the lower clamping installation frame through a plurality of lower clamping ring positioning blocks.

The upper clamping ring and the lower clamping ring are respectively provided with double grooves. When the upper clamping ring and the lower clamping ring are in contact, the double grooves of the upper clamping ring are corresponding to the double grooves of the lower clamping ring. The grooves can bite together up and down.

The longitudinal linear module is connected to the slider on the transverse linear module through the longitudinal linear module connecting bracket thereon.

A connecting bracket for the roller and the angle grinder is set on the slide block of the longitudinal linear module, an angle grinder fixing frame is set on the connecting bracket of the roller and the angle grinder, and an angle grinder is set on the angle grinder fixing frame. It is controlled by a linear cylinder installed on the connecting bracket of the roller and the angle grinder; a roller mounting bracket is set on the connecting bracket of the roller and the angle grinder, a roller adjustment guide post is set at the bottom of the roller installation bracket, and a roller adjustment block is set on the roller adjustment guide post. The roller adjustment block is provided with a roller copper column fixed block, and the roller copper column fixed block is provided with a roller.

The welding and trimming method of the present invention includes the following steps:

(1). Initial reset: Manual operation on the controller operation panel, click Return to Origin, the system will automatically return to the origin, that is, the support table returns to the origin, the compression cylinder returns to the origin, and the lifting cylinder lifts. The clamping cylinder is released, and both the transverse linear module and the longitudinal linear module return to the origin position;

(2) Mesh clamping: Manually place the mesh frame into the positioning block on the mesh frame installation plate, then place the mesh piece between the upper clamping ring and the lower clamping ring, click on the controller operation panel Start the button, and the controller controls the solenoid valve. First, it drives four clamping cylinders to start at the same time to clamp the mesh. The action of the clamping cylinder drives the upper clamping installation frame and the upper clamping ring to move downward and engage with the lower clamping ring. Clamp the mesh;

(3). Mesh mesh frame compression: PLC controls the solenoid valve to drive the two lifting cylinders to start, driving the upper clamping installation frame, lower clamping installation frame, lower clamping ring, upper clamping ring and mesh downwards action to stretch the mesh tightly on the mesh frame; PCL controls the solenoid valve to drive the compression cylinder, and the compression cylinder drives the small slewing bearing and the pressure plate to move downward to tightly press the mesh and mesh frame together.

(4). Mesh grid welding: The PLC controller controls the movements of the horizontal linear module and the longitudinal linear module, automatically docks the roller welding machine roller to the welding position of the grid, starts the welding power source for welding, and the PLC controller controls The servo motor starts, drives the reducer to rotate, and drives the large slewing bearing to rotate. The large slewing bearing drives the upper clamping mounting frame, lower clamping mounting frame, lower clamping ring, upper clamping ring, mesh frame and mesh to rotate together. , the mesh frame drives the pressure plate and the small slewing bearing to rotate. The roller position of the roller welding machine does not move, and the mesh and mesh frame are welded in a circular motion around the center.

(5). Mesh trimming: When the support table rotates 360° and the welding is completed, the PLC controller controls the roller welding machine to stop welding, and then the PLC controller controls the longitudinal linear module to move upward to lift the roller welding machine wheel away from the mesh. piece, start the angle grinder, the PLC controller controls the movement of the linear cylinder, moves the angle grinder downward to cut through the mesh, then starts the servo motor in reverse, drives the reducer to rotate in the opposite direction, and drives the large slewing bearing to rotate in the opposite direction. The slewing bearing drives the upper clamping installation frame, lower clamping installation frame, lower clamping ring, upper clamping ring, grid and mesh to rotate in the opposite direction. The grid in turn drives the pressure plate and the small slewing bearing to rotate in the opposite direction. The angle grinder remains stationary and trims the mesh that makes a reverse circular motion around the center.

(6). Equipment reset: When the support table is reversed and -360° edge cutting is completed, the PLC controller controls the angle grinder to stop working, and then controls the longitudinal linear module to move upward to lift the angle grinder away from the mesh, PLC Control the action of the linear cylinder, lift the angle grinder, and then the PLC controls the action of the transverse linear module and the longitudinal linear module to automatically return the position to the original position; then the PLC controls the action of the compression cylinder, and the compression cylinder drives the small slewing bearing and the pressure plate to move upward. Leave the mesh; then the PLC controls the movements of the two lifting cylinders, driving the upper clamping installation frame, the lower clamping installation frame, the lower clamping ring, and the upper clamping ring to move upward as a whole; then the PLC controls the movements of the four clamping cylinders, Drive the upper clamping installation frame and the upper clamping ring upward to separate the mesh. Manually remove the welded screen and cut the excess mesh, and the screen will be welded and trimmed automatically.

The present invention adopts the above technical solution to design a screen automatic welding and trimming supporting device and trimming method, which has the following beneficial effects:

1. Through automatic roller welding and automatic edge trimming, the present invention can greatly improve work efficiency, reduce labor intensity, improve product quality, and save a lot of manpower and time required for traditional splicing modes;

2. Through the adjustment of the tooling fixture, the present invention can replace four sets of molds of different specifications for welding, achieving multi-purpose and flexible production in one machine, which can greatly improve work efficiency and ensure the stability and consistency of product quality;

3. The invention controls the action of the clamping cylinder through the solenoid valve, driving the action of the upper and lower clamping installation frames, thereby realizing the automatic clamping of the mesh by the upper and lower clamping rings, greatly improving work efficiency, reducing labor intensity of workers, and improving product quality. ;

4. The present invention controls the action of the lifting cylinder through the solenoid valve to realize the upper and lower clamping installation frame and support table to automatically tension the mesh, thereby ensuring the flatness and tension requirements of the screen, greatly improving work efficiency and reducing worker costs. Reduce labor intensity and improve product quality;

5. The invention controls the action of the compression cylinder through the solenoid valve, driving the small slewing bearing and the pressure plate to descend and compressing the mesh. When rotating, the servo motor drives the reducer to rotate, driving the large slewing bearing to rotate, and the large slewing bearing drives the support platform to rotate. , which then drives the upper and lower clamping installation frames, upper and lower clamping rings and the screen to rotate. The screen drives the pressure plate and the small slewing bearing to rotate. The pressure plate and the small slewing bearing are passively rotating, realizing the linkage of the upper and lower slewing bearings to ensure that the entire welding process is complete. Medium, the pressure is certain to ensure the welding quality.

6. This invention only requires one employee to operate. The employee can place the grid and mesh in the designated position. Click the start button, and the system will automatically start into the fully automatic mode, and the grid and mesh will be clamped. , the tensioning, welding and trimming processes are all automated without manual intervention, which can significantly improve operating efficiency, improve the consistency and stability of product welding quality, reduce workers' labor intensity, and reduce labor costs.

Description of drawings

Figure 1 shows a schematic front view of the structure of the present invention;

Figure 2 shows a schematic diagram of the three-dimensional structure of the present invention;

Figure 3 shows a schematic structural view of the clamping fixture device of the grid and mesh of the present invention;

Figure 4 shows a schematic structural diagram of the roller welding and trimming device of the present invention.

In the picture: 1-large slewing bearing, 2-precision reducer, 3-servo motor, 4-guard plate, 5-support table, 6-guide column, 7-lower clamping installation frame, 8-lower clamping ring, 9-pressure plate, 10-small slewing bearing, 11-clamping cylinder, 12-guide column mounting plate, 13-transverse linear module photoelectric switch, 14-upper frame bracket, 15-upper clamping ring, 16-upper clamp Installation frame, 17-pressing cylinder, 18-roller welding power supply, 19-transverse linear module, 20-transverse linear module drag chain, 21-vertical linear module, 22-column, 23-cylinder movable joint, 24- Guide sleeve, 25-jacking cylinder, 26-base, 27-adjustable feet, 28-grid, 29-grid mounting plate, 30-upper clamping ring positioning block, 31-lower clamping ring positioning block, 32-Transverse linear module servo motor, 33-Longitudinal linear module photoelectric switch, 34-Drag chain groove, 35-Transverse linear module slider, 36-Longitudinal linear module servo motor, 37-Longitudinal linear module connection bracket , 38-Longitudinal linear module slider, 39-Roller and angle grinder connecting bracket, 40-Linear cylinder, 41-Angle grinder holder, 42-Angle grinder, 43-Roller welding machine roller, 44-Roller copper Column fixing block, 45-roller adjustment block, 46-roller adjustment guide post, 47-roller mounting bracket.

Detailed ways

The following is a detailed description of an automatic screen welding and trimming supporting device and an edge trimming method of the present invention with reference to the accompanying drawings.

A supporting device for automatic welding and trimming of screens according to the present invention, see Figures 1 to 4, including a base 26 and an upper frame bracket 14 on the base 26. The upper part of the upper frame bracket 14 is at a certain height from the base 26, so as not to affect the The support table 5 rotates within an angle of ±360° and loads and unloads workpieces. A large slew support 1 is set on the base 26. The large slew support 1 is driven by the servo motor 3 provided on the base 26 through the gear at the output end of the precision reducer 2, thereby driving the large slew support 1 to rotate within an angle of ±360°. The electrical circuits are connected via electronic slip rings. A support platform 5 is provided on the large rotary support 1, and a tooling mold for welding the screen is provided on the support platform 1. Different tooling molds can be produced according to different product specifications. The present invention can replace four sets of tooling molds with specifications for welding, achieving One machine for multiple purposes, flexible production. The grid 28 and the mesh can be manually placed in the tooling mold on the support table 5 as required, and can be rotated ±360° through the large slewing bearing 1. The grid 28 is installed on the grid mounting plate 29. A plurality of upright columns 22 are provided on the support platform 5. The upright columns are symmetrically divided into two groups, each group has two columns. Guide columns 6 are respectively provided on both sides of each group of upright columns on the support platform 5. A lower clamping installation frame 7 and an upper clamping frame are provided on the support platform 5. The installation frames 16 are worn on the four upright columns and the four guide columns. The joints between the lower clamping installation frame 7, the upper clamping installation frame 16 and the guide columns 6 are provided with guide sleeves 24. A guide column mounting plate 12 is connected to the upper part of each guide column. The piston rod ends of the two lifting cylinders 25 symmetrically arranged on the support table 5 are connected to the lower clamping installation frame 7, and the lower clamping ring 8 is connected to the lower clamping installation frame 7 through a plurality of lower clamping ring positioning blocks 31. . A plurality of clamping cylinders 11 are evenly arranged on the upper clamping installation frame 16 located above the lower clamping installation frame 7. The piston rod end of each clamping cylinder 11 is connected to the lower clamping installation frame 7 through the corresponding cylinder movable joint 23. Connection, the upper clamping ring 15 is connected to the upper clamping installation frame 16 through a plurality of upper clamping ring positioning blocks 30 . The upper surface of the upper clamping ring 15 and the lower surface of the lower clamping ring 8 are respectively provided with double grooves. When the upper clamping ring 18 and the lower clamping ring 8 contact, the double grooves of the upper clamping ring 15 and the lower The corresponding double grooves of the clamping ring 8 can bite together up and down. A compression cylinder 17 is provided in the middle of the upper frame bracket 14. The piston rod end of the compression cylinder 17 is connected to a small slewing bearing 10. The lower end of the small slewing bearing 10 is connected to a pressure plate 9. The pressure plate 9 is located on the frame of the upper clamping installation frame 16. In the middle of the body, the small slewing bearing 10 and the pressure plate 9 move up and down along with the compression cylinder 17, thereby compressing the mesh, thereby facilitating the welding of the mesh. According to the present invention, the lower clamping installation frame 7, the upper clamping installation frame 16, the upper clamping ring 15, the lower clamping ring 8, the lifting cylinder 25, the clamping cylinder 11, the guide column 6, the upright column 22, and the guide column mounting plate 12 They are all fixed on the support table 5 and integrated with the support table 5. As the support table 5 rotates ±360°, the clamping, loosening and tensioning of the mesh are all completed on the support table 5.

Referring to Figures 1 and 4, a transverse linear module 19 is provided on the upper frame bracket 14. The transverse linear module 19 is driven by a transverse linear module servo motor 32. The transverse linear module 19 is provided with a drag chain groove 34. The drag chain A transverse linear module drag chain 20 is provided in the groove 34, a transverse linear module slider 35 is provided on the transverse linear module 19, and a transverse linear module photoelectric switch 13 is provided on the transverse linear module 19. The horizontal linear module 19 has high control accuracy and can adjust the horizontal distance, that is, the outer diameter of the grid, and can automatically adjust the outer diameter according to different product specifications. The longitudinal linear module 21 is connected to the transverse linear module slider 35 through the longitudinal linear module connecting bracket 37 thereon. The longitudinal linear module 21 is driven by the longitudinal linear module servo motor 36. On the longitudinal linear module 21 A longitudinal linear module photoelectric switch 33 is also provided. The longitudinal linear module 21 has high control accuracy. The horizontal linear module 19 automatically adjusts the horizontal distance, and the longitudinal linear module 21 automatically adjusts the up and down distance. A longitudinal linear module slider 38 is provided on the longitudinal linear module 21. A roller and angle grinder connecting bracket 39 is installed on the longitudinal linear module slider 38. A linear cylinder 40 is installed on the roller and angle grinder connecting bracket 39. The piston rod end of the cylinder 40 is provided with an angle grinder fixed frame 41, and an angle grinder 42 is provided on the angle grinder fixed frame 41. The height elevation of the angle grinder 42 is controlled by the linear cylinder 40. A roller mounting bracket 47 is provided on the connecting bracket 39 between the roller and the angle grinder. A roller adjustment guide post 46 is provided at the lower end of the roller installation bracket 47. A roller adjustment block 45 is connected to the lower end of the roller adjustment guide post 46. A roller copper pillar is provided on the roller adjustment block 45. The fixed block 44 has a roller welding machine roller 43 on the roller copper column fixed block 44. The roller welding power supply 18 is installed on the upper frame bracket 14. The positive wire is connected to the roller welding machine roller 43, and the negative wire is connected to the base 26. When the roller 43 of the roller welding machine contacts the grid 28, a loop is formed. The longitudinal linear module 21 automatically adjusts the distance between the roller 43 of the roller welding machine and the mesh. When the roller 43 of the roller welding machine contacts the mesh, the longitudinal linear module 21 stops descending and performs welding; when trimming, the angle grinder 42 is used alone. The linear cylinder 40 is ejected so that the cutting piece of the angle grinder 42 and the roller 43 of the roller welding machine are not at the same height. The longitudinal linear module 21 automatically adjusts the distance between the angle grinder 42 and the mesh. When the cutting piece of the angle grinder 42 When the mesh is cut through, the longitudinal linear module 21 stops descending and cuts the edges.

In the present invention, the PLC controller installed in the control cabinet controls the coordinated operation of each part. Adjustable feet 27 are also provided at the lower bottom of the base 26 , and guard plates 4 are also provided around the lower bottom of the base 26 .

When the present invention is working, its welding and cutting method includes the following steps:

(1). Initial reset: The employee operates on the controller operation panel and clicks Return to Origin. The system will automatically return to the origin, that is, the support table 5 returns to the origin, the pressing cylinder 17 returns to the origin, and the lifting cylinder 25 Push up, the clamping cylinder 11 is released, and both the transverse linear module 19 and the longitudinal linear module 21 return to the origin position;

(2). Mesh clamping: The employee places the mesh frame 28 into the positioning block on the mesh frame installation plate 29, and then places the mesh piece between the upper clamping ring 15 and the lower clamping ring 8, ensuring that The remaining ingredients on all four sides should be basically the same. Then the employee clicks the start button on the operation panel, and the system will automatically enter the automatic mode for operation. The employee only needs to watch from the side. The system controls the solenoid valve through the PLC controller. First, it drives four clamping cylinders 11 to start the mesh clamping action at the same time. The action of the clamping cylinder 11 drives the upper clamping installation frame 16 to move downward, thereby driving the upper clamping ring 15 to follow. Move downward to engage with the lower clamping ring 8 to clamp the mesh. Since the lower clamping ring 8 and the upper clamping ring 15 are provided with double grooves that engage up and down, it is guaranteed that the mesh will be clamped up and down in one circle. middle of the ring, making sure to clamp the mesh tightly.

(3). Mesh mesh frame compression: PLC controls the solenoid valve to drive the two lifting cylinders 25 to start, driving the upper clamping installation frame 16, the lower clamping installation frame 7, the lower clamping ring 8, and the upper clamping ring 15 and the mesh piece moves downward. Since the mesh frame 28 is fixed on the mesh frame mounting plate 29, there is a certain height difference between the mesh frame 28 and the lower clamping installation frame 7. Therefore, after the mesh piece contacts the mesh frame 28 by the downward movement, Due to the height difference, the lifting cylinder 25 continues to move downward, thus tightly stretching the mesh on the mesh frame 28, ensuring the flatness and tension requirements of the mesh. Then the PCL controls the solenoid valve to drive the compression cylinder 17, and the compression cylinder 17 drives the small slewing bearing 10 and the pressure plate 9 to move downward to tightly press the mesh and the mesh frame 28 together.

(4). Mesh grid welding: Then the PLC controls the movements of the horizontal linear module 19 and the longitudinal linear module 21, automatically docking the roller 43 of the roller welding machine to the welding position of the grid 28, and automatically starting the welding power source for welding. The PLC controls the start of the servo motor 3, drives the precision reducer 2 to rotate, and drives the large slewing bearing 1 to rotate. The large slewing bearing 1 drives the upper clamping mounting frame 16, the lower clamping mounting frame 7, the lower clamping ring 8, and the upper clamp. The tight ring 15, the grid 28 and the mesh rotate together, and the grid 28 drives the pressure plate 9 and the small slewing bearing 10 to rotate. The roller 43 of the roller welding machine does not move, and the mesh and grid 28 make circular motion around the center. Perform welding.

(5). Mesh trimming: When the support table 5 rotates 360° and the welding is completed, the PLC controls the roller welding machine to stop welding, and then the PLC controls the longitudinal linear module 21 to move upward to lift the roller 43 of the roller welding machine away from the mesh. At a certain height, the PLC controls the angle grinder 42 to start, and the PLC controls the solenoid valve to drive the linear cylinder 40 to move the angle grinder 42 downward to cut through the mesh, and then the PLC controls the servo motor 3 to start in reverse and drive the precision reducer 2 Reverse rotation drives the large slewing bearing 1 to rotate in the opposite direction, and the large slewing bearing 1 drives the upper clamping installation frame 16, the lower clamping installation frame 7, the lower clamping ring 8, the upper clamping ring 15, the grid 28 and The mesh pieces rotate in the opposite direction together, and the mesh frame 28 drives the pressure plate 9 and the small slewing bearing 10 to rotate in the opposite direction. The angle grinder 42 does not move and trims the mesh pieces that make reverse circular motion around the center.

(6). Equipment reset: When the support table 5 is reversed and the -360° edge cutting is completed, the PLC controls the angle grinder 42 to stop working, and then the PLC controls the longitudinal linear module 21 to move upward to lift the angle grinder 42 away from the net. When the piece reaches a certain height, the PLC controls the solenoid valve to drive the linear cylinder 40 to lift the angle grinder 42, and then the PLC controls the transverse linear module 19 and the longitudinal linear module 21 to automatically return the position to the origin. Then the PLC controls the solenoid valve to drive the compression cylinder 17, and the compression cylinder 17 drives the small slewing bearing 10 and the pressure plate 9 to move upward and away from the mesh. Then the PLC controls the solenoid valve to drive the two lifting cylinders 25 to move, driving the upper clamping installation frame 16, the lower clamping installation frame 7, the lower clamping ring 8, and the upper clamping ring 15 to move upward as a whole. Then the PLC controls the solenoid valve to drive the four clamping cylinders 11 to move, driving the upper clamping installation frame 16, and the upper clamping ring 15 to move upward to separate the mesh. The employee takes out the welded screen mesh and the cut excess mesh. Yes, the screen is automatically welded and trimmed. Then the employee will place the next grid 28 into the positioning block on the grid installation plate 29, and then place the mesh between the upper clamping ring 15 and the lower clamping ring 8 to ensure that the remaining materials around it are basically consistent. , and then the employee clicks the start button on the operation panel, and the system will automatically enter the automatic mode for operation, without manual intervention for automatic welding and automatic trimming operations. This cycle greatly improves work efficiency and employee labor intensity, and also greatly improves work efficiency and employee labor intensity. Save labor costs and provide product stability and consistency.

When changing product specifications in the present invention, only the lower clamping ring 8, the upper clamping ring 15 and the pressure plate 9 of the product need to be replaced to realize the production of different product specifications, and the operation is simple and convenient. The invention can realize products with four different product specifications, and one machine can be used for multiple purposes, thus greatly saving the cost of multiple specifications and equipment.

The whole process of clamping, tensioning, welding and trimming the mesh of the screen of the present invention is automated. You only need to click the start button of the controller after manually loading the materials to achieve fully automatic unmanned operation. In the automation of the screen It plays a key role in production and production, which can significantly improve the welding and trimming efficiency of the screen, improve the consistency and stability of the screen welding quality, and significantly reduce labor costs and labor intensity.

Claims (7)

1. A supporting device for automatic welding and trimming of screens, including a base and an upper frame bracket on the base. It is characterized in that a large rotary support is provided on the base, a support platform is provided on the large rotary support, and a tooling is provided on the support platform. Mold; the lower clamping installation frame and the upper clamping installation frame located above the lower clamping installation frame are put on the uprights on the support table, and the piston rod ends of the two lifting cylinders symmetrically arranged on the support table are connected to the lower clamping frame. The mounting frame is connected, and a lower clamping ring is set on the lower clamping mounting frame; multiple clamping cylinders are evenly arranged on the upper clamping mounting frame above the lower clamping mounting frame, and the piston rod end of each clamping cylinder is connected to the lower clamping mounting frame. The clamping installation frame is connected, and the upper clamping installation frame is equipped with an upper clamping ring; a compression cylinder is installed in the middle of the upper frame bracket, a small slewing bearing is connected to the piston rod end of the compression cylinder, and a pressure plate is installed on the lower end of the small slewing bearing. It is located between the frames of the upper clamping installation frame; a transverse linear module driven by a transverse linear module servo motor is set on the upper frame bracket, and a longitudinal linear module driven by a longitudinal linear module servo motor is set on the transverse linear module. , a roller welding machine and an angle grinder are installed on the longitudinal linear module; the controller installed in the control cabinet controls the control connections of each part; Its automatic welding and trimming method includes the following steps: (1). Initial reset: Manually operate on the controller operation panel, click Return to Origin, the system will automatically return to the origin, that is, the support table returns to the origin, the compression cylinder returns to the origin, and the lifting cylinder lifts. The clamping cylinder is released, and both the transverse linear module and the longitudinal linear module return to the origin position; (2). Mesh clamping: Manually place the mesh frame into the positioning block on the mesh frame installation plate, then place the mesh piece between the upper clamping ring and the lower clamping ring, and click on the controller operation panel. Start the button, and the controller controls the solenoid valve. First, it drives four clamping cylinders to start at the same time to clamp the mesh. The action of the clamping cylinder drives the upper clamping installation frame and the upper clamping ring to move downward and engage with the lower clamping ring. Clamp the mesh; (3). Mesh mesh frame compression: PLC controls the solenoid valve to drive the two lifting cylinders to start, driving the upper clamping installation frame, lower clamping installation frame, lower clamping ring, upper clamping ring and mesh downwards action to stretch the mesh tightly on the mesh frame; PCL controls the solenoid valve to drive the compression cylinder, and the compression cylinder drives the small slewing bearing and the pressure plate to move downward to tightly press the mesh and mesh frame together; (4). Mesh grid welding: The PLC controller controls the movements of the horizontal linear module and the longitudinal linear module, automatically docks the roller welding machine roller to the welding position of the grid, starts the welding power source for welding, and the PLC controller controls The servo motor starts, drives the reducer to rotate, and drives the large slewing bearing to rotate. The large slewing bearing drives the upper clamping mounting frame, lower clamping mounting frame, lower clamping ring, upper clamping ring, mesh frame and mesh to rotate together. , the grid drives the pressure plate and the small slewing bearing to rotate, the roller position of the roller welding machine does not move, and the mesh and grid are welded in a circular motion around the center; (5). Mesh trimming: When the support table rotates 360° and the welding is completed, the PLC controller controls the roller welding machine to stop welding, and then the PLC controller controls the longitudinal linear module to move upward to lift the roller welding machine wheel away from the mesh. piece, start the angle grinder, the PLC controller controls the movement of the linear cylinder, moves the angle grinder downward to cut through the mesh, then starts the servo motor in reverse, drives the reducer to rotate in the opposite direction, and drives the large slewing bearing to rotate in the opposite direction. The slewing bearing drives the upper clamping installation frame, lower clamping installation frame, lower clamping ring, upper clamping ring, grid and mesh to rotate in the opposite direction. The grid in turn drives the pressure plate and the small slewing bearing to rotate in the opposite direction. The angle grinder remains stationary and trims the mesh that makes a reverse circular motion around the center; (6). Equipment reset: When the support table is reversed and -360° edge cutting is completed, the PLC controller controls the angle grinder to stop working, and then controls the longitudinal linear module to move upward to lift the angle grinder away from the mesh, PLC Control the action of the linear cylinder, lift the angle grinder, and then the PLC controls the action of the transverse linear module and the longitudinal linear module to automatically return the position to the original position; then the PLC controls the action of the compression cylinder, and the compression cylinder drives the small slewing bearing and the pressure plate to move upward. Leave the mesh; then the PLC controls the movements of the two lifting cylinders, driving the upper clamping installation frame, the lower clamping installation frame, the lower clamping ring, and the upper clamping ring to move upward as a whole; then the PLC controls the movements of the four clamping cylinders, Drive the upper clamping installation frame and the upper clamping ring upward to separate the mesh. Manually remove the welded screen and cut the excess mesh, and the screen will be welded and trimmed automatically. 2. A supporting device for automatic welding and trimming of screens according to claim 1, characterized in that two groups of columns are symmetrically arranged on the support platform, and each group of columns has two columns. Guide columns are provided on both sides, and the lower clamping installation frame is inserted into the four upright columns and four guide columns. The upper parts of the two guide columns next to each group of columns are connected with guide column installation plates. 3. A supporting device for automatic welding and trimming of screens according to claim 1, characterized in that the large slew support is driven by a servo motor arranged on the base through a gear at the output end of the reducer, driving the large slew support ±360 °rotation, and its electrical circuits are connected through electronic slip rings. 4. A supporting device for automatic welding and trimming of screens according to claim 1, characterized in that the upper clamping ring is connected to the upper clamping installation frame through a plurality of upper clamping ring positioning blocks, and the lower clamping ring It is connected to the lower clamping installation frame through multiple lower clamping ring positioning blocks. 5. A supporting device for automatic welding and trimming of screens according to claim 1, characterized in that the upper clamping ring and the lower clamping ring are respectively provided with double grooves. When the upper clamping ring and the lower clamping ring When the clamping rings are in contact, the double grooves of the upper clamping ring and the corresponding double grooves of the lower clamping ring can bite together up and down. 6. A supporting device for automatic welding and trimming of screens according to claim 1, characterized in that the longitudinal linear module is connected to the slider on the transverse linear module through the longitudinal linear module connecting bracket thereon. 7. A supporting device for automatic welding and trimming of screens according to claim 1, characterized in that a roller and an angle grinder connection bracket are provided on the slide block of the longitudinal linear module, and a connecting bracket between the roller and the angle grinder is provided. An angle grinder fixed frame is set on the bracket, and an angle grinder is set on the angle grinder fixed frame. The angle grinder is controlled by a linear cylinder set on the connecting bracket of the roller and the angle grinder; a roller is set on the connecting bracket of the roller and the angle grinder. Installation bracket, the lower part of the roller installation bracket is equipped with a roller adjustment guide post, the roller adjustment guide post is equipped with a roller adjustment block, the roller adjustment block is provided with a roller copper column fixed block, and the roller copper column fixed block is provided with a roller.