A wire loop welding device for a metal rigging

Abstract

The present invention discloses a welding device for a grommet of a hardware rigging, which relates to the technical field of welding equipment and includes a ground-touching mounting plate; two L-shaped support plates are symmetrically welded to the top end of the ground-touching mounting plate, and a waist-shaped support frame is horizontally welded to the top ends of the two L-shaped support plates. The waist-shaped support frame, the two L-shaped support plates and the ground-touching mounting plate are jointly welded to form the main body framework of the equipment; two positioning sleeves are symmetrically welded in the spaces at the left and right ends of the waist-shaped support frame, two sprockets are symmetrically rotatably mounted on the two positioning sleeves, and a chain is tensioned and mounted between the two sprockets; two groups of four threaded shafts are fixedly mounted on the chain, and a limit baffle is welded and fixed to the leading end of each of the four threaded shafts. The present invention can enable the welding gun to automatically switch the welding posture following the feeding and conveying of the cable chain, solving the problem that it is necessary to additionally support a posture adjustment motor and an automatic start-stop controller of the motor for the welding gun, which is not conducive to the equipment reducing energy consumption and cost.

Description

[0001] This application is a divisional application of the application filed on August 30, 2024, with application number 202411210047.0 and invention name “A kind of eyelet welding equipment for hardware rigging”. Technical Field

[0002] The invention relates to the technical field of welding equipment, in particular to a grommet welding device for hardware rigging. Background Art

[0003] In the manufacturing process of hardware rigging, it is necessary to weld and reinforce the gap on the waist-shaped grommet formed by bending. In order to speed up production efficiency, it is necessary to design a grommet welding equipment dedicated to hardware rigging.

[0004] The optimization design of the posture adjustment mechanism of the welding gun on the existing welding equipment is not reasonable. Most of them cannot be linked with the transmission mechanism of the cable chain for synchronous drive. It is necessary to provide the welding gun with an additional driving posture adjustment motor and an automatic controller adapted to the motor, which is not conducive to reducing the power consumption and cost of the equipment. Moreover, after welding, the cable chain mostly requires additional manual operation to unload, which is troublesome and time-consuming to use. Summary of the invention

[0005] The purpose of the present invention is to provide a cable ring welding device for hardware rigging, which has two rows of driving teeth. Through the power transmission of the two rows of driving teeth, the two threaded shafts can utilize the transmission power of the chain to engage and rotate to push the control limit member to slide forward and open, and push the cable chain to peel off and implement automatic unloading, thereby solving the problem of requiring additional manual effort to unload the cable chain, which is inconvenient and time-consuming to use.

[0006] To achieve the above object, the present invention provides the following technical solution: A welding device for a grommet of a hardware rigging, including a ground-touching mounting plate; two L-shaped support plates are symmetrically welded to the top of the ground-touching mounting plate, and a waist-shaped support frame is horizontally welded to the top of the two L-shaped support plates. The waist-shaped support frame, the two L-shaped support plates, and the ground-touching mounting plate are jointly welded to form the main body framework of the device; Two positioning sleeves are symmetrically welded in the spaces at the left and right ends of the waist-shaped support frame. Two sprockets are symmetrically rotatably mounted on the two positioning sleeves, and a chain is tightly installed between the two sprockets; Four threaded shafts are fixedly installed on the chain, and a limit baffle is welded and fixed to the head end of each of the four threaded shafts. A short column is provided at the center of the limit baffle. The cable chain to be welded is tightly hung between the two short columns on the two threaded shafts arranged in a group; A limit member is slidably mounted on each of the four limit baffles; A vertically standing positioning ring is sleeved and welded on the left end section of the top support plate of the waist-shaped support frame. The cross section of the positioning ring is hexagonal, and a welding gun is slidably mounted on the positioning ring; A strip-shaped vertical support frame is welded to the left end section of the ground-touching mounting plate, and a motor is fixedly installed at the top of the vertical support frame. A driving gear is sleeved on the rotating shaft of the motor; An L-shaped mounting plate is welded and fixed to the left end section of the bottom support plate of the waist-shaped support frame, and a driving component is rotatably mounted on the top section of the L-shaped mounting plate.

[0007] Preferably, a row of driving tooth pieces are provided on both the left and right end sections of the bottom support plate of the waist-shaped support frame, and the height of the left row of driving tooth pieces is half of the height of the right row of driving tooth pieces.

[0008] Preferably, a worm is rotatably mounted on the left end section of the waist-shaped support frame, and a worm is also rotatably mounted on the horizontal section of the L-shaped mounting plate. The two worms are both vertically supported, and a driven gear is sleeved at the bottom of each of the two worms. The two driven gears are in meshing contact with the driving gear.

[0009] Preferably, the driving component is composed of a driving wheel and a second worm gear sleeved on the tail end of the rotating shaft of the driving wheel. A first worm gear is sleeved on the tail end of the rotating shaft of the left sprocket, and the second worm gear and the first worm gear are respectively in meshing transmission with the two worms.

[0010] Preferably, an arc-shaped sliding sleeve is welded to the bottom position of the right side wall of the welding gun. The arc-shaped sliding sleeve is slidably matched with the positioning ring correspondingly, and a connecting rod is rotatably connected to the arc-shaped sliding sleeve, and the tail end of the connecting rod is rotatably connected to the driving wheel.

[0011] Preferably, the limit member is integrally composed of a front-end circular baffle, a hexagonal sliding shaft welded to the outer ring of the circular baffle, and a force-transmitting ring welded to the tail end of the hexagonal sliding shaft. The circular baffle slides backward and abuts against the short column of the threaded shaft.

[0012] Preferably, a threaded locking member is screwed and installed on the threaded shaft. The threaded locking member has a gear feature, and the diameter ratio of the threaded locking members on the two threaded shafts arranged in a group is 3:2. The threaded locking member with the larger diameter is in meshing contact with the left row of driving teeth, and the threaded locking member with the smaller diameter is in meshing contact with the right row of driving teeth.

[0013] Preferably, a connecting seat is welded at the center of the threaded locking member. The cross-section of the connecting seat is in a convex structure. The force transmission ring is rotationally matched with the connecting seat, and a stripping ring is slidably installed on the limiting baffle through a spring.

[0014] Preferably, the stripping ring slides and abuts against the limiting baffle. The cable ring is blocked and limited between the stripping ring and the circular baffle. Two sliding shafts are symmetrically welded on the back of the stripping ring, and the front of the connecting seat slides and abuts against the two sliding shafts.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. In the present invention, through the meshing power transmission of the two worm gears and the driving gear, the motor can rotate and push to drive the first worm wheel and the left sprocket to intermittently rotate to feed and convey the cable chain, so that the notch on the cable ring can slide leftward in sequence and be placed at the bottom of the welding gun for welding. Moreover, the motor can also intermittently mesh to drive the second worm wheel and the driving assembly to rotate to control the welding gun to alternately switch the welding angle between the vertical and horizontal states. This can make the welding gun automatically switch the welding posture following the feeding and conveying of the cable chain, eliminating the need for an additional posture adjustment motor and an automatic start-stop controller for the motor supporting the welding gun, which helps to reduce the weight of the equipment and lower the energy consumption and cost;

[0017] 2. In the present invention, through the power transmission of the two rows of driving teeth, the two threaded shafts can use the transmission power of the chain to be linked and meshed to rotate and push to control the limiting member to slide forward and open and push and peel off the cable chain to implement automatic unloading. This eliminates the need for an additional unloading driving motor for the cable chain, which helps to further reduce the power consumption and cost of the equipment, and can also eliminate the trouble of manually exerting force to unload the cable chain additionally, making it convenient and efficient to use;

[0018] 3. In the present invention, the heights of the two rows of driving teeth are correspondingly adapted to the diameters of the two oval support frames, so that the threaded locking members with smaller diameters do not contact and mesh with each other when first passing through the lower row of driving teeth, avoiding the leading end of the cable chain from being pushed off before reaching the unloading position, and preventing other components on the equipment from being hung and connected, which affects normal unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a three-dimensional structure schematic diagram of the rear side of the present invention;

[0021] Figure 3 Schematic diagram of the three-dimensional structure at the bottom of the present invention;

[0022] Figure 4 Schematic diagram of the waist-shaped support frame structure of the present invention;

[0023] Figure 5 Schematic diagram of the installation position of the threaded shaft of the present invention;

[0024] Figure 6 Schematic diagram of the threaded shaft structure of the present invention;

[0025] Figure 7 Schematic diagram of the limiting member structure of the present invention;

[0026] Figure 8 For the present invention Figure 3 Enlarged schematic diagram of part A in;

[0027] Figure 9 For the present invention Figure 3 Enlarged schematic diagram of part B in;

[0028] In the figure, the corresponding relationship between the component names and the drawing numbers is:

[0029] 1. Ground contact mounting plate; 101. L-shaped support plate; 102. Waist-shaped support frame; 103. Worm; 104. L-shaped mounting plate; 105. Positioning ring; 106. Driving tooth piece; 2. Chain; 3. Sprocket; 301. First worm gear; 4. Motor; 401. Driving gear; 5. Driving assembly; 501. Second worm gear; 6. Welding gun; 601. Arc-shaped sliding sleeve; 602. Connecting rod; 7. Limiting member; 701. Hexagonal sliding shaft; 702. Force transmission ring; 8. Threaded shaft; 801. Threaded locking member; 802. Limiting baffle; 803. Connecting seat; 804. Stripping ring. Detailed implementation manners

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

[0031] Please refer to Figures 1 to 9, an embodiment provided by the present invention: a wire ring welding device for a hardware rigging, including a ground-touching mounting plate 1; two L-shaped support plates 101 are symmetrically welded to the top of the ground-touching mounting plate 1, and a waist-shaped support frame 102 is horizontally welded to the top of the two L-shaped support plates 101. The waist-shaped support frame 102, the two L-shaped support plates 101, and the ground-touching mounting plate 1 are jointly welded to form the main body framework of the device; two positioning sleeves are symmetrically welded in the spaces at the left and right ends of the waist-shaped support frame 102, and two sprockets 3 are symmetrically rotatably mounted on the two positioning sleeves, and a chain 2 is tightly installed between the two sprockets 3; two groups of a total of four threaded shafts 8 are fixedly installed on the chain 2, and a limit baffle 802 is welded and fixed to the head end of each of the four threaded shafts 8. A short column is provided at the center of the limit baffle 802, and the wire rope to be welded is tightly hung between the two short columns on the two threaded shafts 8 arranged in a group; a limit member 7 is slidably mounted on each of the four limit baffles 802; a vertically erected positioning ring 105 is sleeved and welded on the left end section of the top support plate of the waist-shaped support frame 102. The cross section of the positioning ring 105 is in a hexagonal structure, and a welding gun 6 is slidably mounted on the positioning ring 105; a strip-shaped vertical support frame is welded to the left end section of the ground-touching mounting plate 1, and a motor 4 is fixedly installed at the top of the vertical support frame. A driving gear 401 is sleeved on the rotating shaft of the motor 4; an L-shaped mounting plate 104 is welded and fixed to the left end section of the bottom support plate of the waist-shaped support frame 102, and a driving assembly 5 is rotatably mounted on the top section of the L-shaped mounting plate 104; the driving assembly 5 is jointly composed of a driving wheel and a second worm wheel 501 sleeved on the tail end of the rotating shaft of the driving wheel, and a first worm wheel 301 is sleeved on the tail end of the rotating shaft of the left sprocket 3, and the second worm wheel 501 and the first worm wheel 301 are respectively engaged and driven by two worm shafts 103; an arc-shaped sliding sleeve 601 is welded to the bottom position of the right side wall of the welding gun 6. The arc-shaped sliding sleeve 601 is slidably matched with the positioning ring 105 correspondingly, and a connecting rod 602 is rotatably connected to the arc-shaped sliding sleeve 601, and the tail end of the connecting rod 602 is rotatably connected to the driving wheel. The arc-shaped sliding sleeve 601, the connecting rod 602, and the driving wheel jointly form a crank-slider mechanism. Through this mechanism, the driving assembly 5 can rotate to drive the welding gun 6 to swing back and forth along the positioning ring 105 to adjust the welding posture; the limit member 7 is integrally composed of a front circular baffle, a hexagonal sliding shaft 701 welded to the outer ring of the circular baffle, and a force transmission ring 702 welded to the tail end of the hexagonal sliding shaft 701. The circular baffle at the front slides and abuts against the short column of the threaded shaft 8, and the limit member 7 blocks and limits the wire rope on the short column of the threaded shaft 8 through the circular baffle at its front end; the stripping ring 804 slides and abuts against the limit baffle 802, and the wire ring is blocked and limited between the stripping ring 804 and the circular baffle. Two sliding shafts are symmetrically welded to the back of the stripping ring 804, and the connecting seat 803 slides forward and abuts against the two sliding shafts.

[0032] It should be noted that: Since the cable chains are connected in a crisscross pattern, when the cable chains are tightened and straightened (refer to Figure 5 ), the notches on two adjacent cable loops will be staggered at an interval of 90 degrees. This requires continuous alternating adjustment of the posture of the welding torch 6, so that the welding torch 6 can switch between the horizontal and vertical states to align with the notches on two adjacent cable loops and perform welding;

[0033] The motor 4 is a servo motor and is programmed and controlled by a servo driver to achieve intermittent rotation. Specifically, it is set to rotate for two seconds every two seconds. The welding torch 6 can use the stop gap of the motor 4 to perform welding on the notches on the cable loops;

[0034] The small-diameter threaded locking member 801 first passes through the welding torch 6, and the body of the welding torch 6 is controlled by an automatic welding system to trigger welding.

[0035] As Figure 3 shown, a row of driving teeth 106 are provided on both the left and right end segments of the bottom support plate of the oval support frame 102, and the height of the row of driving teeth 106 on the left is one-half of the height of the row of driving teeth 106 on the right. The heights of the two rows of driving teeth 106 are correspondingly adapted to the diameters of the two oval support frames 102, so that the smaller-diameter threaded locking members 801 do not come into contact and engage with each other when first passing through the lower row of driving teeth 106, preventing the head end of the cable chain from being pushed off before reaching the unloading position and avoiding snagging and connecting with other components on the equipment, which may affect normal unloading.

[0036] As Figure 4 shown, a worm 103 is rotatably installed on the left end segment of the oval support frame 102, and a worm 103 is also rotatably installed on the horizontal section of the L-shaped mounting plate 104. The two worms 103 are both vertically supported, and a driven gear is sleeved at the bottom of each of the two worms 103. The two driven gears are both in meshing contact with the driving gear 401. Through the meshing power transmission of the two worms 103 and the driving gear 401, the motor 4 can rotate and push to drive the first worm gear 301 and the left sprocket 3 to rotate intermittently to feed and convey the cable chain, so that the notches on the cable loops can be sequentially slid to the bottom of the welding torch 6 for welding. Moreover, the motor 4 can also intermittently engage to drive the second worm gear 501 and the driving assembly 5 to rotate to control the welding torch 6 to alternately switch the welding angle between the vertical and horizontal states. This can make the welding torch 6 automatically switch the welding posture following the feeding and conveying of the cable chain, eliminating the need for an additional posture adjustment motor and an automatic start-stop controller for the motor supporting the welding torch 6, which helps to reduce the weight of the equipment and lower the energy consumption and cost.

[0037] As Figure 6As shown, a threaded locking member 801 is screwed and installed on the threaded shaft 8, and the threaded locking member 801 has gear characteristics, and the diameter ratio of the threaded locking members 801 on the two threaded shafts 8 arranged in a group is 3:2, wherein the threaded locking member 801 with a larger diameter is meshed and contacted with a row of driving teeth 106 on the left, and the threaded locking member 801 with a smaller diameter is meshed and contacted with a row of driving teeth 106 on the right, and the threaded locking member 801 can be rotated forward and reversely to push and drive the limit member 7 to slide back and forth to open and close, and the connecting seat 803 can also push and drive the stripping ring 804 forward to strip the chain from the short column of the threaded shaft 8 during the process of following the threaded locking member 801 to slide forward.

[0038] like Figure 7 As shown, a connecting seat 803 is welded at the center of the threaded locking member 801, and the cross-section of the connecting seat 803 is a convex structure, and the force transmission ring 702 rotates with the connecting seat 803, and a stripping ring 804 is installed on the limit baffle 802 through a spring push and slide. Through the power transmission of the two rows of driving teeth 106, the two threaded shafts 8 can utilize the transmission power of the chain 2 to engage and rotate to push and control the limit member 7 to slide forward and open, and push the chain to peel off and implement automatic unloading. This eliminates the need for an additional unloading drive motor for the chain, helps the equipment to further reduce power consumption and cost, and also eliminates the trouble of additional manual effort to unload the chain. It is easy and efficient to use.

[0039] Working principle: Before use, first hang the chain between two short posts on two threaded shafts 8 arranged in a group, and the limiter 7 blocks the chain against the short posts of the threaded shaft 8 through the circular baffle at its front end, and the threaded locking member 801 can be rotated forward and reverse to push and drive the limiter 7 to slide forward and backward to open and close;

[0040] When in use, through the meshing power transmission of the two worms 103 and the driving gear 401, the motor 4 can rotate and push to drive the first worm wheel 301 and the left sprocket wheel 3 to intermittently rotate to feed the cable chain, so that the notches on the cable rings can slide leftward in sequence and be placed at the bottom of the welding gun 6, and the motor 4 can also intermittently mesh to drive the second worm wheel 501 and the driving assembly 5 to rotate to control the welding gun 6 to alternately switch the welding angle between the vertical and horizontal states, which can make the welding gun 6 automatically switch the welding posture following the feeding of the cable chain, align with the notches on the two adjacent cable rings and perform welding;

[0041] After the welding operation is completed, through the power transmission of the two rows of driving teeth 106, the two threaded shafts 8 can utilize the transmission power of the chain 2 to engage and rotate to push the control limit member 7 to slide forward and open. The connecting seat 803 can also push and drive the stripping ring 804 forward in the process of following the forward sliding of the threaded locking member 801 to strip the chain from the short column of the threaded shaft 8 and unload it.

[0042] It is obvious to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, in all respects, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Thus, all changes that fall within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claimed invention.

Claims

1. A welding device for a grommet of a hardware rigging, characterized in that: Sling welding equipment, including a ground-touching mounting plate (1); at the top of the ground-touching mounting plate (1), two L-shaped support plates (101) are symmetrically welded. At the top of the two L-shaped support plates (101), an oval support frame (102) is horizontally welded. The oval support frame (102), the two L-shaped support plates (101), and the ground-touching mounting plate (1) are jointly welded to form the main body framework of the equipment; in the spaces at the left and right ends of the oval support frame (102), two positioning sleeves are symmetrically welded. Two sprockets (3) are symmetrically rotatably mounted on the two positioning sleeves, and a chain (2) is tensioned and installed between the two sprockets (3); two groups of a total of four threaded shafts (8) are fixedly installed on the chain (2), and at the first ends of the four threaded shafts (8), a limit baffle (802) is welded and fixed. A short column is provided at the center of the limit baffle (802). The sling to be welded is tensioned and hung between the two short columns on the two threaded shafts (8) arranged in a group; a limit member (7) is slidably installed on each of the four limit baffles (802); the limit member (7) is integrally composed of a front-end circular baffle, a hexagonal sliding shaft (701) welded to the outer circle of the circular baffle, and a force transmission ring (702) welded to the tail end of the hexagonal sliding shaft (701). Among them, the circular baffle slides backward and abuts against the short column of the threaded shaft (8); on the left end section of the top support plate of the oval support frame (102), an upright positioning ring (105) is sleeved and welded. The cross-section of the positioning ring (105) is hexagonal, and a welding gun (6) is slidably installed on the positioning ring (105); on the left end section of the ground-touching mounting plate (1), a strip-shaped vertical support frame is welded. At the top of the vertical support frame, a motor (4) is fixedly installed. The motor (4) is a servo motor and is programmed and controlled by a servo driver to achieve intermittent rotation. Specifically, it rotates for two seconds every two seconds. A driving gear (401) is sleeved on the rotating shaft of the motor (4); on the left end section of the bottom support plate of the oval support frame (102), an L-shaped mounting plate (104) is welded and fixed. A driving assembly (5) is rotatably installed on the top section of the L-shaped mounting plate (104); On the left end section of the oval support frame (102), a worm (103) is rotatably installed, and on the horizontal section of the L-shaped mounting plate (104), a worm (103) is also rotatably installed. The two worms (103) are both vertically supported, and at the bottom of the two worms (103), a driven gear is sleeved, and the two driven gears are in meshing contact with the driving gear (401).

2. The wire loop welding device for a hardware rigging according to claim 1, characterized in that: The driving assembly (5) is jointly composed of a driving wheel and a second worm gear (501) sleeved on the tail end of the rotating shaft of the driving wheel. At the tail end of the rotating shaft of the left sprocket (3), a first worm gear (301) is sleeved, and the second worm gear (501) and the first worm gear (301) are respectively in meshing transmission with the two worms (103); At the bottom position of the right shell wall of the welding gun (6), an arc-shaped sliding sleeve (601) is welded. The arc-shaped sliding sleeve (601) is slidably matched with the positioning ring (105). A connecting rod (602) is rotatably connected to the arc-shaped sliding sleeve (601), and the tail end of the connecting rod (602) is rotatably connected to the driving wheel.

3. A wire loop welding device for a hardware rigging, characterized in that: A row of driving teeth (106) is provided on each of the left and right end segments of the bottom support plate of the oval support frame (102), and the height of the left row of driving teeth (106) is one-half of the height of the right row of driving teeth (106).

4. A grommet welding device for a hardware rigging, characterized in that: A threaded locking member (801) is screwed and installed on the threaded shaft (8). The threaded locking member (801) has a gear feature, and the diameters of the threaded locking members (801) on the two threaded shafts (8) arranged in a group are in a ratio of 3:

2. The threaded locking member (801) with the larger diameter is in meshing contact with the left row of driving teeth (106), and the threaded locking member (801) with the smaller diameter is in meshing contact with the right row of driving teeth (106).

5. A grommet welding device for a hardware rigging, characterized in that: A connecting seat (803) is welded at the center of the threaded locking member (801). The cross-section of the connecting seat (803) is of a convex structure. The force transmission ring (702) is rotatably matched with the connecting seat (803), and a stripping ring (804) is slidably installed on the limiting baffle (802) by spring pushing.

6. A grommet welding device for a hardware rigging, characterized in that: The stripping ring (804) slides backward and abuts against the limiting baffle (802). The cable ring is blocked and limited between the stripping ring (804) and the circular baffle. Two sliding shafts are symmetrically welded to the back of the stripping ring (804), and the connecting seat (803) slides forward and abuts against the two sliding shafts.

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