Double-layer gantry welding machine

Abstract

The invention relates to the technical field of metal welding, and particularly discloses a double-layer gantry welding machine which comprises a machine base, a sliding frame is installed in the machine base, a gantry frame is fixedly installed on the upper side of the middle of the machine base, a plurality of spot welding machines are installed on the lower side of the gantry frame, and the spot welding machines are sequentially arranged in a rectangular array. And a fixing mechanism sliding front and back is arranged in the sliding frame, the fixing mechanism is located on the front side of the portal frame, a linear driving device acting on the sliding frame is installed on the fixing mechanism, and welded steel bars are fixed through the fixing mechanism. According to the double-layer gantry welding machine, through precise design and automatic control, the steel wire fixing speed and accuracy can be effectively improved, the requirements of steel wires of different specifications can be flexibly met, the high quality of welded finished products is ensured, and the double-layer gantry welding machine has the advantages of being rapid in steel wire fixing, uniform in steel wire arrangement, stable in steel wire fixing, welding quality improving and the like; and the production process of the iron mesh grid is obviously optimized, the production efficiency is improved, and the cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of metal welding, in particular to a double-layer gantry welding machine. Background Art

[0002] Gantry welder is a kind of equipment used for metal welding, usually for heavy welding work. Its design features a gantry frame structure that can provide stable support and is suitable for welding large workpieces. The working principle of the gantry welder is similar to that of a general welder, heating the metal through an electric arc to melt and fuse it. Iron mesh grille is a grid structure woven or welded by iron bars or steel wires. When manufacturing iron mesh grille, the longitudinal and transverse ribs are usually regularly distributed to form a grid-like structure. The intersections of the transverse and longitudinal ribs are welded by a gantry welder, and finally a solid and uniform iron mesh grille is formed. It is a common and efficient method for producing iron mesh grille.

[0003] However, in the actual process of welding iron mesh grille components, due to the unstable fixation of the horizontal and longitudinal bars, there is a situation where the steel wire is displaced or loosened during the welding process, resulting in a decrease in welding quality. There is a deviation in the arrangement of the steel wire, resulting in uneven strength distribution of the mesh grille. When the fixing force at the end of the steel wire is uneven or insufficient, the end of the steel wire may be displaced due to thermal expansion, external force or mechanical vibration, affecting the stability of the welding point, and it is impossible to smoothly adapt to steel wires of different specifications and types, resulting in the inability to effectively and quickly fix the steel wire. There is a lot of manual intervention, which seriously affects the production quality and efficiency. Therefore, the present invention proposes a double-layer gantry welding machine to solve the problems mentioned in the above background technology. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings in the prior art and to propose a double-layer gantry welding machine.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A double-layer gantry welding machine comprises a machine base, a slide is installed inside the machine base, a gantry is fixedly installed on the middle upper side of the machine base, a plurality of spot welding machines are installed on the lower side of the gantry, the spot welding machines are arranged in a rectangular array in an orderly manner, a fastener mechanism that slides back and forth is arranged inside the slide, the fastener mechanism is located at the front side of the gantry, and a linear drive device acting on the slide is installed on the fastener mechanism, and the welded steel bar is fixed by the fastener mechanism;

[0007] The fixing mechanism includes a fixing frame, which is a rectangular frame, and the fixing frame slides forward and backward inside the sliding frame, and a bracket 1 and a bracket 2 are arranged inside the fixing frame, and the bracket 1 and the bracket 2 both slide up and down inside the fixing frame, and a lifting bracket is fixed on the lower side of the bracket 1 and the bracket 2;

[0008] The left and right sides of the fixed frame are rotatably connected with a rotating shaft, a plurality of cams are evenly fixed on the circumference of the rotating shaft, a corresponding clamping block is arranged on the upper side of the cam, a corresponding fixed block is arranged on the front side of the clamping block, a plurality of the fixed blocks are fixed on both sides of the fixed frame, a corresponding abutting block is arranged on the rear side of the clamping block, and a spring is arranged between the clamping block and the front fixed block.

[0009] Preferably, there is a distance between the two lifting supports at the lower side of bracket one and bracket two, and left and right limit rotating blocks are provided on the upper sides of the lifting supports below bracket one and bracket two, and the thickness of the limit rotating blocks is less than or equal to the distance between the upper and lower lifting supports.

[0010] Preferably, a plurality of placement grooves are evenly opened on the surfaces of the bracket one and the bracket two, the side surfaces of the placement grooves are semicircular, and the size, number and spacing of the placement grooves on the surfaces of the bracket one and the bracket two are different.

[0011] Preferably, racks are provided on the front and rear inner sides and left and right sides of the bracket one, and racks are provided on the front and rear outer sides and left and right sides of the bracket two, and spur gears are provided between the two corresponding racks of the bracket one and the bracket two, and several spur gears are rotatably connected in the fixed frame, and the spur gears are meshed with the racks on both sides.

[0012] Preferably, the resisting block slides forward and backward inside the clamping block, and the lower end of the resisting block is provided with an arc surface corresponding to the cam, and the end of the steel bar is located between the clamping block and the corresponding resisting block.

[0013] Preferably, both left and right sides of the fixing frame are flush with the surface of the first intermediate bracket or the second intermediate bracket.

[0014] Preferably, grooves corresponding to the cams are provided on both left and right sides of the fixing frame, the side surface of the clamping block is L-shaped, and the lower part of the clamping block is located in the groove.

[0015] Preferably, a positioning knob is fixed to the outer end of the rotating shaft, a second spring is arranged between the outer side of the fixing frame and the positioning knob, and a limiting block corresponding to the positioning knob is arranged on the outer side of the fixing frame.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The invention realizes the rapid fixation of the steel wire through the precisely designed fastener mechanism. The fixing frame, bracket and limit switch block and other components are used together to quickly and accurately fix the longitudinal and transverse steel wires in appropriate positions. The design not only improves the stability of the steel wire during welding, but also significantly improves the production efficiency and reduces manual intervention and adjustment time.

[0018] 2. The present invention ensures the uniform arrangement of the longitudinal and transverse steel wires through the precise adjustment of the bracket and the fastener mechanism. The ends of the steel wires can be precisely clamped through the cooperation of the clamping block and the abutment block to prevent displacement during welding, ensuring that the steel wires always remain in the predetermined position. The stable design improves the accuracy of the welding point and avoids loose welding or deviation caused by displacement of the steel wire.

[0019] 3. The precise fixation of the steel wire of the present invention optimizes the bearing capacity of the finished mesh grille after welding and avoids local strength differences caused by deviations in the position of the steel wire. This uniform strength distribution not only improves the stability of the iron mesh grille, but also extends its service life. The automatic adjustment and rapid fixing mechanism of the double-layer gantry welding machine greatly improves production efficiency.

[0020] In summary, the double-layer gantry welding machine of the present invention can effectively improve the speed and accuracy of steel wire fixing through precise design and automated control, flexibly adapt to the needs of steel wires of different specifications, and ensure the high quality of welded products. Its advantages in rapid fixation, uniform arrangement, firm fixation of steel wires, and improved welding quality significantly optimize the production process of iron mesh grilles, improve production efficiency, and reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of a double-layer gantry welding machine proposed by the present invention;

[0022] Figure 2 A schematic diagram of the top view of a double-layer gantry welding machine proposed by the present invention;

[0023] Figure 3 This is a schematic diagram of the front structure of a double-layer gantry welding machine proposed by the present invention;

[0024] Figure 4 A schematic diagram of the structure of the firmware mechanism in a double-layer gantry welding machine proposed by the present invention Figure 1 ;

[0025] Figure 5 A schematic diagram of the top view of the structure of the fastener mechanism in a double-layer gantry welding machine proposed by the present invention;

[0026] Figure 6 A schematic side cross-sectional structure diagram of a fastener mechanism in a double-layer gantry welding machine proposed by the present invention;

[0027] Figure 7 A schematic diagram of the structure of the fastener mechanism in a double-layer gantry welding machine proposed by the present invention Figure 2 .

[0028] In the figure: 1. Machine base; 2. Gantry; 3. Slide; 4. Spot welding machine;

[0029] 5. Firmware mechanism; 501. Fixed frame; 502. Bracket 1; 503. Bracket 2; 504. Fixed block; 505. Abutment block; 506. Clamping block; 507. Limiting rotating block; 508. Rotating shaft; 509. Spring 1; 510. Cam; 511. Spur gear; 512. Rack; 513. Lifting support; 514. Positioning knob; 515. Spring 2. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] Reference Figure 1-7 A double-layer gantry welding machine comprises a machine base 1, a slide 3 is installed inside the machine base 1, a gantry 2 is fixedly installed on the middle upper side of the machine base 1, and a plurality of spot welding machines 4 are installed on the lower side of the gantry 2. The spot welding machines 4 are arranged in a rectangular array in an orderly manner. A fastener mechanism 5 that slides back and forth is arranged in the slide 3, and the fastener mechanism 5 is located at the front side of the gantry 2. A linear drive device acting on the slide 3 is installed on the fastener mechanism 5, and the welded steel bars are fixed by the fastener mechanism 5; the fastener mechanism 5 comprises a fixed frame 501, and the fixed frame 501 is a rectangular frame. The linear drive device is installed on the fixed frame 501. After the longitudinal and transverse steel wires for welding are arranged and fixed by the fastener mechanism 5, the fastener mechanism 5 is moved by the linear drive device through the plurality of spot welding machines 4 of the gantry 2 to complete the welding process of the relative points until it is transported to the other end of the slide 3, and the blank of the initially formed iron mesh grille can be taken out;

[0032] Furthermore, referring to Figure 5 , 7The fixed frame 501 slides forward and backward inside the slide 3, and a bracket 1 502 and a bracket 2 503 are arranged inside the fixed frame 501, and the bracket 1 502 and the bracket 2 503 both slide up and down inside the fixed frame 501, and a lifting support 513 is fixed on the lower side of the bracket 1 502 and the bracket 2 503, and there is a distance between the two lifting supports 513 on the lower side of the bracket 1 502 and the bracket 2 503, and left and right limit rotation blocks 507 are arranged on the upper side of the lifting supports 513 below the bracket 1 502 and the bracket 2 503, and the thickness of the limit rotation block 507 is less than or equal to the distance between the upper and lower lifting supports 513, and the bracket 1 502 and the bracket 503 are fixed to the lower side of the lifting supports 513. A plurality of placement grooves are evenly opened on the surface of the second 503, and the side of the placement grooves is semicircular, and the size, number and spacing of the placement grooves on the surface of the bracket 1 502 and the bracket 2 503 are different. Due to the different thickness and number of welded steel wires, a suitable bracket can be selected according to the needs to fix the upper side of the bracket 501, and the bracket connected to the upper side can be lifted by the lower lifting support 513. After the adjustment of the upper and lower brackets is completed, the corresponding limit rotation block 507 can be rotated to limit the purpose of the upper lifting support 513, and then the positions of the upper and lower brackets after adjustment are fixed, and the longitudinal reinforcement steel wires are placed in the placement grooves of the upper brackets and evenly arranged;

[0033] Furthermore, racks 512 are provided on both the front and rear inner sides and left and right sides of the bracket 1 502, and racks 512 are provided on both the front and rear outer sides and left and right sides of the bracket 2 503. A spur gear 511 is provided between the two corresponding racks 512 of the bracket 1 502 and the bracket 2 503. Several spur gears 511 are rotatably connected in the fixed frame 501, and the spur gears 511 are meshed with the racks 512 on both sides. The positions of the lifting supports 513 on the lower sides of the above-mentioned two brackets are staggered, so the lifting supports 513 will not affect the adjustment of the upper and lower brackets, and when the positions of the bracket 1 502 and the bracket 2 503 are adjusted, through the action of the spur gears 511 meshed between the two racks 512, when the bracket 1 502 is raised or lowered, the bracket 2 503 moves down or up, and the two brackets maintain opposite activity directions;

[0034] Furthermore, referring to Figure 6, both sides of the fixed frame 501 are rotatably connected with a rotating shaft 508, and a plurality of cams 510 are evenly fixed on the circumference of the rotating shaft 508. A corresponding clamping block 506 is arranged on the upper side of the cam 510, and a corresponding fixed block 504 is arranged on the front side of the clamping block 506. A plurality of fixed blocks 504 are fixed on both sides of the fixed frame 501, and a corresponding abutting block 505 is arranged on the rear side of the clamping block 506. A spring 1 509 is arranged between the clamping block 506 and the front fixed block 504. The abutting block 505 slides back and forth inside the clamping block 506, and an arc surface corresponding to the cam 510 is arranged at the lower end of the abutting block 505. The end of the steel bar is located between the clamping block 506 and the corresponding abutting block 505. Both sides of the fixed frame 501 are flush with the surface of the middle bracket 1 502 or the bracket 2 503. The left side of the fixed frame 501 The right and left sides are provided with grooves corresponding to the cam 510. The side of the clamping block 506 is L-shaped, and the lower part of the clamping block 506 is located in the groove. The left and right ends of the transverse rib are placed between the abutting blocks 505 and the clamping blocks 506 on both sides of the corresponding positions, and the rotation adjustment of the peripheral cam 510 is realized by controlling the rotating shaft 508. The cam 510 realizes the pushing of the abutting block 505 by contacting the arc surface of the lower end of the abutting block 505, and the clamping block 506 on the front side of the abutting block 505 is continuously acted by the spring 1 509 to always keep the direction of the abutting block 505 pushed. The abutting blocks 505 and the clamping blocks 506 with the opposite movement trend realize the clamping of the end of the middle transverse rib, and the transverse rib also falls on the surface of the fixing frame 501, and keeps in contact with the longitudinal rib on the bracket below, which is suitable for spot welding.

[0035] Furthermore, a positioning knob 514 is fixed to the outer end of the rotating shaft 508, a spring 2 515 is arranged between the outer side of the fixing frame 501 and the positioning knob 514, and a limiting block corresponding to the positioning knob 514 is arranged on the outer side of the fixing frame 501. In the process of rotating and adjusting the rotating shaft 508, under the action of the spring 2 515, the positioning knob 514 at the outer end of the rotating shaft 508 is always pressed against the rear limiting block, and the relative friction between the positioning knob 514 and the limiting block maintains the instant fixation of the rotating shaft 508 after the angle is adjusted, thereby realizing the rapid fixation of the end of the transverse rib.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A double-layer gantry welding machine, comprising a machine base (1), characterized in that: A slide (3) is installed inside the machine base (1), a gantry (2) is fixedly installed on the middle upper side of the machine base (1), a plurality of spot welding machines (4) are installed on the lower side of the gantry (2), and the spot welding machines (4) are arranged in an orderly manner in a rectangular array. A fastener mechanism (5) that slides forward and backward is arranged inside the slide (3), the fastener mechanism (5) is located on the front side of the gantry (2), and a linear drive device that acts on the slide (3) is installed on the fastener mechanism (5), and the welded steel bars are fixed by the fastener mechanism (5); The fixing mechanism (5) comprises a fixing frame (501), the fixing frame (501) is a rectangular frame, the fixing frame (501) slides forward and backward inside the sliding frame (3), and a bracket 1 (502) and a bracket 2 (503) are arranged inside the fixing frame (501), the bracket 1 (502) and the bracket 2 (503) both slide up and down inside the fixing frame (501), and a lifting support (513) is fixed on the lower side of the bracket 1 (502) and the bracket 2 (503); The left and right sides of the fixed frame (501) are rotatably connected with a rotating shaft (508), a plurality of cams (510) are evenly fixed on the circumference of the rotating shaft (508), a corresponding clamping block (506) is arranged on the upper side of the cam (510), a corresponding fixed block (504) is arranged on the front side of the clamping block (506), a plurality of the fixed blocks (504) are fixed on both sides of the fixed frame (501), a corresponding abutting block (505) is arranged on the rear side of the clamping block (506), and a spring 1 (509) is arranged between the clamping block (506) and the front fixed block (504).

2. The double-layer gantry welding machine according to claim 1, characterized in that: There is a distance between the two lifting supports (513) at the lower sides of the bracket one (502) and the bracket two (503), and left and right limit rotation blocks (507) are arranged on the upper sides of the lifting supports (513) at the lower sides of the bracket one (502) and the bracket two (503), and the thickness of the limit rotation blocks (507) is less than or equal to the distance between the upper and lower lifting supports (513).

3. The double-layer gantry welding machine according to claim 1, characterized in that: The surfaces of the bracket 1 (502) and the bracket 2 (503) are evenly provided with a plurality of placement grooves, the side surfaces of the placement grooves are semicircular, and the size, number and spacing of the placement grooves on the surfaces of the bracket 1 (502) and the bracket 2 (503) are different.

4. The double-layer gantry welding machine according to claim 1, characterized in that: The first bracket (502) is provided with racks (512) on both the front and rear inner sides and on both the left and right sides, and the second bracket (503) is provided with racks (512) on both the front and rear outer sides and on both the left and right sides, and a spur gear (511) is provided between the two corresponding racks (512) of the first bracket (502) and the second bracket (503), and a plurality of spur gears (511) are rotatably connected in the fixed frame (501), and the spur gears (511) are meshed with the racks (512) on both sides.

5. The double-layer gantry welding machine according to claim 1, characterized in that: The stop block (505) slides forward and backward inside the clamping block (506), and the lower end of the stop block (505) is provided with an arc surface corresponding to the cam (510), and the end of the steel bar is located between the clamping block (506) and the corresponding stop block (505).

6. The double-layer gantry welding machine according to claim 1, characterized in that: The left and right sides of the fixing frame (501) are both flush with the surface of the middle bracket 1 (502) or the bracket 2 (503).

7. The double-layer gantry welding machine according to claim 1, characterized in that: The left and right sides of the fixing frame (501) are both provided with grooves corresponding to the cam (510); the side surface of the clamping block (506) is L-shaped, and the lower part of the clamping block (506) is located in the groove.

8. The double-layer gantry welding machine according to claim 1, characterized in that: A positioning knob (514) is fixed to the outer end of the rotating shaft (508), a second spring (515) is arranged between the outer side of the fixing frame (501) and the positioning knob (514), and a limiting block corresponding to the positioning knob (514) is arranged on the outer side of the fixing frame (501).

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