Steel structure welded ball positioning device

Abstract

The present application relates to the technical fields of welding ball processing, and especially relates to a steel structure welding ball positioning device, which comprises a positioning support, a positioning assembly, a clamping assembly and a welding ball feeding assembly, the positioning support is provided with the positioning assembly, the positioning support is provided with the clamping assembly below, and the positioning support is provided with the welding ball feeding assembly on one side; the positioning assembly comprises a motor, a cross rotating shaft, an air cylinder, an annular guide rail, a rotating disc, a cross limiting hole, an annular sliding slot, a height sensor and a rotary positioner; the positioning assembly is adopted, the welded ball after splicing can be positioned, manual positioning is not needed, the positioning precision is increased, the positioning burden is reduced, and the positioning effect of the welded ball is improved; the clamping assembly is adopted, multiple welded balls can be continuously clamped, the welded ball is automatically clamped through the positioning structure, the clamping burden is reduced, and the clamping effect of the welded ball is improved.

Description

Technical Field

[0001] This invention relates to the field of welded ball processing technology, and in particular to a positioning device for welded balls in steel structures. Background Technology

[0002] Welded steel spheres are important node components used for steel structure connections. They are made by hot-pressing or cold-pressing two round steel plates, typically Q235 or Q345 steel, into two hemispheres and then welding them together. They come in two types: with and without ribs. The rib plate thickness is generally equal to the sphere wall thickness. During processing, welded steel spheres require a positioning device for welding. However, existing positioning devices are generally not very effective at positioning the spheres at the node, requiring manual assistance, which increases the positioning burden and reduces the positioning effect. Furthermore, it is generally difficult to continuously clamp multiple welded spheres, requiring a drive structure for clamping, which increases the clamping burden and reduces the clamping effect. Additionally, it is generally difficult to continuously feed multiple welded spheres, requiring a drive structure for feeding, which increases the feeding burden and reduces the feeding effect. Summary of the Invention

[0003] The problem solved by this invention is to provide a steel structure welded ball positioning device, which can perform positioning processing on the spliced ​​welded balls without the need for manual auxiliary positioning, thereby increasing positioning accuracy, reducing positioning burden, and improving the positioning effect of the welded balls. Moreover, it can continuously clamp multiple welded balls, and the positioning structure drives the welded balls to be automatically clamped, reducing the clamping burden and improving the clamping effect of the welded balls. Furthermore, it can continuously feed multiple welded balls, and the positioning structure performs feeding processing on them, reducing the feeding burden and improving the feeding effect of the welded balls.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a steel structure welded ball positioning device, comprising a positioning bracket, a positioning component, a clamping component, and a welded ball feeding component, wherein the positioning bracket is equipped with the positioning component, the clamping component is installed below the positioning bracket, and the welded ball feeding component is installed on one side of the positioning bracket;

[0005] The positioning assembly includes a motor, a cross-shaped rotating shaft, a cylinder, an annular guide rail, a rotating disk, a cross-shaped limiting hole, an annular groove, a height sensor, and a rotary positioner. The motor is embedded in the bottom of the positioning bracket, and the bottom of the motor's output shaft is fixedly connected to the cross-shaped rotating shaft. A rotating disk is mounted below the positioning bracket, and a cross-shaped limiting hole is formed in the middle of the rotating disk corresponding to the position of the cross-shaped rotating shaft. An annular groove is formed at the top of the rotating disk, and an annular guide rail is slidably connected within the annular groove. Cylinders are symmetrically embedded in the positioning bracket, and the bottom of the cylinder's telescopic rod is fixedly connected to the outer wall of the annular guide rail. A height sensor is mounted on the bottom outer wall of the rotating disk, and a rotary positioner is mounted on one side outer wall of the rotating disk.

[0006] Preferably, the clamping assembly includes a connecting frame, an arc-shaped extrusion plate, lifting holes, a connecting block, a fixed clamping ring, a lifting clamping ring, a discharge port, an arc-shaped baffle, a lifting rod, an arc-shaped adjusting plate, and a first spring. The rotating disk has lifting holes distributed throughout. A lifting rod is fitted into each lifting hole. An arc-shaped adjusting plate is fixed to the outer wall of the top of the lifting rod. A first spring is fixed to the outer wall of the bottom of the arc-shaped adjusting plate, and the bottom of the first spring is fixed to the outer wall of the rotating disk. A connecting frame is fixed to one side of the outer wall of the positioning bracket. An arc-shaped extrusion plate is fixed to the bottom of the connecting frame corresponding to the position of the arc-shaped adjusting plate. A lifting clamping ring is fixed to the bottom of the lifting rod. A discharge port is opened on one side of the lifting clamping ring. An arc-shaped baffle is fixed to the outer wall of the top of the lifting clamping ring. Connecting blocks are distributed and fixed to the bottom of the rotating disk. A fixed clamping ring is fixed to the bottom of each connecting block corresponding to the position of the lifting clamping ring.

[0007] Preferably, the welding ball feeding assembly includes a top rod, a connecting plate, a feeding pipe, a lifting groove, a vertical plate, a rotating rod, a second spring, a gear, a first baffle plate, a second baffle plate, a rack, and a lifting plate. A connecting plate is fixedly connected to one outer wall of the positioning bracket, and a feeding pipe is fixedly connected to one outer wall of the connecting plate. A first baffle plate is installed at the bottom end of the feeding pipe, and a second baffle plate is installed at the bottom end of the feeding pipe, with one side of the second baffle plate located outside the first baffle plate. The feeding pipe... The bottom end of the tube is symmetrically provided with lifting grooves corresponding to the positions of the first and second baffles. A rack is fixedly distributed on one side of the outer wall of the first and second baffles. A gear is meshed on one side of the outer wall of the rack. A rotating rod is fixedly connected to one side of the outer wall of the gear. A vertical plate is fixedly connected to the bottom end of the feeding tube, and one end of the rotating rod is rotatably connected to the outer wall of the vertical plate. A second spring is fixedly connected to both sides of the outer wall of the vertical plate, and the other end of the second spring is fixedly connected to the outer wall of the gear.

[0008] Preferably, a lifting plate is fixedly connected to the outer wall of the bottom end of one side of the second shielding plate, and a top rod is fixedly connected to the bottom end of the rotating disk corresponding to the position of the lifting plate, and the top rod is distributed in a ring.

[0009] Preferably, the top of the positioning bracket has symmetrical connecting holes, and bolts are fitted into the connecting holes.

[0010] Preferably, a connecting rod is fixed to one outer wall of the positioning bracket, an operation panel is installed on one outer wall of the connecting rod, and operation buttons are distributed on one outer wall of the operation panel.

[0011] Preferably, a feeding funnel is installed through the top outer wall of the feeding pipe.

[0012] Preferably, the electrical output terminal of the height sensor is electrically connected to the electrical input terminal of the cylinder, and the electrical output terminal of the rotary positioner is electrically connected to the electrical input terminal of the motor.

[0013] Preferably, the first spring is sleeved on the outer wall of the lifting rod, and the number of first springs is four.

[0014] Preferably, the second spring is sleeved on the outer wall of the rotating rod, and the second spring is a torsion spring.

[0015] The beneficial effects of this invention are: the use of a positioning component allows for the positioning of the assembled welded balls without the need for manual assistance, thus increasing positioning accuracy, reducing the positioning burden, and improving the positioning effect of the welded balls;

[0016] The clamping assembly is adopted, which can continuously clamp multiple welding balls, and the positioning structure drives the welding balls to be automatically clamped, which reduces the clamping burden and improves the clamping effect of the welding balls.

[0017] The welding ball feeding assembly is adopted, which can continuously feed multiple welding balls. The feeding process is carried out through a positioning structure, which reduces the feeding burden and improves the feeding effect of welding balls. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a perspective view of the other side of the present invention;

[0020] Figure 3 This is a bottom-view perspective structural diagram of the present invention;

[0021] Figure 4 This is a front sectional view of the present invention;

[0022] Figure 5 For the present invention Figure 4 Partial cross-sectional structural diagram;

[0023] Figure 6 This is a three-dimensional structural diagram of the positioning component and clamping component of the present invention;

[0024] Figure 7 For the present invention Figure 6 Enlarged view of the structure of region A in the middle;

[0025] Figure 8 This is a three-dimensional structural diagram of the welding ball feeding assembly of the present invention;

[0026] Figure 9 For the present invention Figure 8 Enlarged view of the structure of region B in the middle;

[0027] Figure 10 This is a bottom-view perspective view of the welding ball feeding assembly of the present invention.

[0028] Legend:

[0029] 1. Positioning bracket; 2. Positioning assembly; 3. Clamping assembly; 4. Welding ball feeding assembly; 5. Connecting hole; 6. Bolt; 7. Connecting rod; 8. Operation panel; 9. Operation button; 10. Feeding funnel; 201. Motor; 202. Cross rotating shaft; 203. Cylinder; 204. Circular guide rail; 205. Rotary disk; 206. Cross limit hole; 207. Circular slide groove; 208. Height sensor; 209. Rotary positioner; 301. Connecting frame; 302. Arc-shaped extrusion plate; 303. Lifting hole 304. Connecting block; 305. Fixed clamping ring; 306. Lifting clamping ring; 307. Discharge port; 308. Arc-shaped baffle; 309. Lifting rod; 3010. Arc-shaped adjusting plate; 3011. First spring; 401. Top rod; 402. Connecting plate; 403. Feeding pipe; 404. Lifting groove; 405. Vertical plate; 406. Rotating rod; 407. Second spring; 408. Gear; 409. First baffle plate; 4010. Second baffle plate; 4011. Rack; 4012. Lifting plate. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Example 1

[0032] See Figures 1-6A steel structure welded ball positioning device includes a positioning bracket 1, a positioning component 2, a clamping component 3, and a welded ball feeding component 4. The positioning component 2 is installed on the positioning bracket 1, the clamping component 3 is installed below the positioning bracket 1, and the welded ball feeding component 4 is installed on one side of the positioning bracket 1. The top of the positioning bracket 1 has symmetrically opened connecting holes 5, and bolts 6 are sleeved in the connecting holes 5 to place the positioning bracket 1 in a designated position, so that the positioning bracket 1 can be fixed in that position by the bolts 6 in the connecting holes 5. A connecting rod 7 is fixed to one side of the outer wall of the positioning bracket 1, and an operation panel 8 is installed on the outer wall of one end of the connecting rod 7. Operation buttons 9 are distributed on one side of the outer wall of the operation panel 8. The operation panel 8 on the connecting rod 7 is operated by the operation buttons 9, and the operation process of the equipment is preset. A feeding funnel 10 is installed through the top outer wall of the feeding pipe 403, and two welded hemispheres are welded together, so that the welded balls are put into the inside of the feeding pipe 403 through the feeding funnel 10.

[0033] The positioning component 2 includes a motor 201, a cross-shaped rotating shaft 202, a cylinder 203, an annular guide rail 204, a rotating disk 205, a cross-shaped limiting hole 206, an annular groove 207, a height sensor 208, and a rotary positioner 209. The motor 201 is embedded in the bottom of the positioning bracket 1, and the cross-shaped rotating shaft 202 is fixedly connected to the bottom of the output shaft of the motor 201. A rotating disk 205 is installed below the positioning bracket 1. A cross-shaped limiting hole 206 is formed in the middle of the rotating disk 205 corresponding to the position of the cross-shaped rotating shaft 202. An annular groove 207 is formed at the top of the rotating disk 205, and an annular guide rail 204 is slidably connected within the annular groove 207. Cylinders 203 are symmetrically embedded in the positioning bracket 1. 03, and the bottom end of the telescopic rod of cylinder 203 is fixed to the outer wall of the annular guide rail 204. A height sensor 208 is installed on the bottom outer wall of the rotating disk 205, and a rotary positioner 209 is installed on one side outer wall of the rotating disk 205. The electrical output terminal of the height sensor 208 is electrically connected to the electrical input terminal of cylinder 203, and the electrical output terminal of the rotary positioner 209 is electrically connected to the electrical input terminal of motor 201. The rotary positioner 209 is started to sense the node, the motor 201 is started to make the cross rotating shaft 202 rotate to the designated position, and then the height of the node is sensed by the height sensor 208. Then the cylinder 203 is started to make the annular guide rail 204 descend to the designated position.

[0034] Working principle: First, the positioning bracket 1 is placed in the designated position, and then the positioning bracket 1 is fixed in this position by the bolt 6 in the connecting hole 5. Then, the two welding hemispheres are welded together, and then the welded balls are put into the inside of the feeding pipe 403 through the feeding funnel 10. At this time, the operation panel 8 on the connecting rod 7 is operated by the operation button 9, and then the operation process of the equipment is preset. At this time, the rotary positioner 209 is started to sense the node, and the motor 201 is started to make the cross rotating shaft 202 rotate. Then the cross limiting hole 206 Under the action of the rotating disk 205, the annular groove 207 on the rotating disk 205 rotates along the annular guide rail 204 to the designated position, so that the welding ball rotates to the designated position. The height of the node is sensed by the height sensor 208, and then the cylinder 203 is activated to lower the annular guide rail 204, so that the welding ball on the rotating disk 205 contacts the node. Then, the welding structure welds the welding ball to the node. The welding ball can be positioned after splicing without the need for manual auxiliary positioning, which increases the positioning accuracy, reduces the positioning burden, and improves the positioning effect of the welding ball.

[0035] Example 2

[0036] See Figures 1-7 The clamping assembly 3 includes a connecting frame 301, an arc-shaped extrusion plate 302, a lifting hole 303, a connecting block 304, a fixed clamping ring 305, a lifting clamping ring 306, a discharge port 307, an arc-shaped baffle 308, a lifting rod 309, an arc-shaped adjusting plate 3010, and a first spring 3011. The rotating disk 205 has lifting holes 303 distributed on it. A lifting rod 309 is sleeved inside the lifting hole 303. An arc-shaped adjusting plate 3010 is fixed to the outer wall of the top end of the lifting rod 309. A first spring 3011 is fixed to the outer wall of the bottom end of the arc-shaped adjusting plate 3010, and the bottom end of the first spring 3011 is fixed to the outer wall of the rotating disk 205. A connecting frame 301 is fixed to one outer wall of the positioning bracket 1, and the bottom end of the connecting frame 301 corresponds to the arc-shaped adjusting plate. An arc-shaped extrusion plate 302 is fixedly connected at position 3010. A lifting clamping ring 306 is fixedly connected to the bottom end of the lifting rod 309. A discharge port 307 is opened on one side of the lifting clamping ring 306. An arc-shaped baffle 308 is fixedly connected to the top outer wall of the lifting clamping ring 306. A connecting block 304 is fixedly connected to the bottom end of the rotating disk 205. A fixed clamping ring 305 is fixedly connected to the bottom end of the connecting block 304 corresponding to the position of the lifting clamping ring 306. Four first springs 3011 are sleeved on the outer wall of the lifting rod 309. When the arc-shaped extrusion plate 302 separates from the arc-shaped adjustment plate 3010, the lifting clamping ring 306 on the lifting rod 309 descends along the lifting hole 303 under the action of the first springs 3011.

[0037] When the welding ball is clamped, it falls onto the lifting clamping ring 306. Then, the motor 201 is started to rotate the cross rotating shaft 202. Under the action of the cross limiting hole 206, the annular groove 207 on the rotating disk 205 rotates along the annular guide rail 204. Under the action of the arc-shaped extrusion plate 302 on the connecting frame 301, the arc-shaped adjusting plate 3010 is highly extruded, causing the lifting rod 309 to rise along the lifting hole 303. The welding ball is clamped and fixed by the lifting clamping ring 306 and the fixed clamping ring 305 on the connecting block 304. Then, the clamped welding ball rotates with the rotating disk 205 to the designated position. Finally, the cylinder 203 is started to rotate the rotating disk 205. The welding ball is lowered, and then the connection of the welding ball is welded. Then, the motor 201 is started again to rotate the rotating disk 205, and the welded part is moved out from the discharge port 307. The arc extrusion plate 302 is separated from the arc adjustment plate 3010. Then, under the action of the first spring 3011, the lifting clamping ring 306 on the lifting rod 309 is lowered along the lifting hole 303, and the lifting clamping ring 306 is separated from the fixed clamping ring 305, so as to clamp the next welding ball. Multiple welding balls can be continuously clamped. The positioning structure drives the welding ball to be automatically clamped, which reduces the clamping burden and improves the clamping effect of the welding ball.

[0038] Example 3

[0039] See Figures 8-10The welding ball feeding assembly 4 includes a top rod 401, a connecting plate 402, a feeding pipe 403, a lifting groove 404, a vertical plate 405, a rotating rod 406, a second spring 407, a gear 408, a first baffle plate 409, a second baffle plate 4010, a rack 4011, and a lifting plate 4012. A connecting plate 402 is fixedly connected to one outer wall of the positioning bracket 1, and a feeding pipe 403 is fixedly connected to one outer wall of the connecting plate 402. A first baffle plate 409 is installed at the bottom end of the feeding pipe 403. A second baffle plate 4010 is installed at the bottom end of the pipe 403, and one side of the second baffle plate 4010 is located outside the first baffle plate 409. A lifting groove 404 is symmetrically opened at the bottom end of the feeding pipe 403 corresponding to the positions of the first baffle plate 409 and the second baffle plate 4010. A rack 4011 is fixedly connected to one side of the outer wall of the first baffle plate 409 and the second baffle plate 4010. A gear 408 is meshed on one side of the outer wall of the rack 4011. A rotating rod is fixedly connected to one side of the outer wall of the gear 408. 406. A vertical plate 405 is fixedly connected to the bottom end of the feeding pipe 403, and one end of the rotating rod 406 is rotatably connected to the outer wall of the vertical plate 405. A second spring 407 is fixedly connected to both outer walls of the vertical plate 405, and the other end of the second spring 407 is fixedly connected to the outer wall of the gear 408. A lifting plate 4012 is fixedly connected to the bottom outer wall of one side of the second baffle plate 4010. A top rod 401 is fixedly connected to the bottom end of the rotating disk 205 corresponding to the position of the lifting plate 4012, and the top rods 401 are arranged in a ring. When the welding ball is descending for welding, the lifting plate 4012 on the second baffle plate 4010 is pressed by the top rod 401, causing the second baffle plate 4010 to descend along the lifting groove 404; the second spring 407 is sleeved on the outer wall of the rotating rod 406, and the second spring 407 is a torsion spring, which separates the top rod 401 from the lifting plate 4012, and then the gear 408 on the rotating rod 406 is reset and rotated under the action of the second spring 407 on the vertical plate 405.

[0040] When the welding ball needs to be fed, during the descent of the welding ball for welding, the lifting plate 4012 on the second baffle plate 4010 is pressed by the top rod 401, causing the second baffle plate 4010 to descend along the lifting groove 404. The rack 4011 on the second baffle plate 4010 drives the gear 408 to rotate, causing the rack 4011 on the first baffle plate 409 to rise along the lifting groove 404. The first baffle plate 409 isolates the welding ball. When the second baffle plate 4010 separates from the welding ball, the welding ball slides onto the lifting clamping ring 306 under gravity, and then passes through the arc-shaped baffle 3. 08 blocks the welding ball, then the rotating disk 205 rotates, causing the top rod 401 to separate from the lifting plate 4012. Then, under the action of the second spring 407 on the vertical plate 405, the gear 408 on the rotating rod 406 is reset and rotated. Under the action of the rack 4011, the second blocking plate 4010 rises along the lifting groove 404, and the first blocking plate 409 falls along the lifting groove 404, so that the next welding ball slides to the second blocking plate 4010. Multiple welding balls can be continuously fed, and the feeding process is carried out through the positioning structure, which reduces the feeding burden and improves the feeding effect of welding balls.

[0041] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A steel structure welded ball positioning device, characterized in that, It includes a positioning bracket, a positioning component, a clamping component, and a welding ball feeding component. The positioning component is installed on the positioning bracket, the clamping component is installed below the positioning bracket, and the welding ball feeding component is installed on one side of the positioning bracket. The positioning assembly includes a motor, a cylinder, a height sensor, and a rotary positioner. The motor is mounted at the bottom of the positioning bracket, and a cross-shaped rotating shaft is fixed to the bottom of the motor's output shaft. A rotating disk is installed below the positioning bracket. A cross-shaped limiting hole is opened in the middle of the rotating disk corresponding to the cross-shaped rotating shaft. An annular groove is opened at the top of the rotating disk, and an annular guide rail is slidably connected in the annular groove. Cylinders are symmetrically embedded in the positioning bracket. The bottom end of the cylinder's telescopic rod is fixed to the outer wall of the annular guide rail. The height sensor is installed on the bottom outer wall of the rotating disk, and the rotary positioner is installed on one side outer wall of the rotating disk. The clamping assembly includes a connecting frame, an arc-shaped extrusion plate, lifting holes, connecting blocks, a fixed clamping ring, a lifting clamping ring, a discharge port, an arc-shaped baffle, a lifting rod, an arc-shaped adjusting plate, and a first spring. Lifting holes are distributed on the rotating disk, and a lifting rod is sleeved in the lifting holes. An arc-shaped adjusting plate is fixed to the outer wall of the top of the lifting rod, and a first spring is fixed to the outer wall of the bottom of the arc-shaped adjusting plate. The bottom of the first spring is fixed to the outer wall of the rotating disk. A connecting frame is fixed to one side of the outer wall of the positioning bracket. An arc-shaped extrusion plate is fixed to the bottom of the connecting frame corresponding to the position of the arc-shaped adjusting plate. A lifting clamping ring is fixed to the bottom of the lifting rod. A discharge port is opened on one side of the lifting clamping ring. An arc-shaped baffle is fixed to the outer wall of the top of the lifting clamping ring. Connecting blocks are distributed and fixed to the bottom of the rotating disk, and a fixed clamping ring is fixed to the bottom of the connecting blocks corresponding to the position of the lifting clamping ring. The electrical output terminal of the height sensor is electrically connected to the electrical input terminal of the cylinder, and the electrical output terminal of the rotary positioner is electrically connected to the electrical input terminal of the motor. The welding ball is clamped and fixed by the lifting clamping ring and the fixed clamping ring. The clamped welding ball is rotated to the designated position with the rotating disk. The cylinder is activated to make the welding ball on the rotating disk descend, and the connection of the welding ball is welded.

2. The steel structure welded ball positioning device according to claim 1, characterized in that, The welding ball feeding assembly includes a top rod, a connecting plate, a feeding pipe, a lifting groove, a vertical plate, a rotating rod, a second spring, a gear, a first baffle plate, a second baffle plate, a rack, and a lifting plate. A connecting plate is fixed to one outer wall of the positioning bracket, and a feeding pipe is fixed to one outer wall of the connecting plate. A first baffle plate is installed at the bottom end of the feeding pipe, and a second baffle plate is installed at the bottom end of the feeding pipe, with one side of the second baffle plate located outside the first baffle plate. A lifting groove is symmetrically opened at the bottom end of the feeding pipe corresponding to the positions of the first and second baffle plates. A rack is fixed to one outer wall of the first and second baffle plates, and a gear is meshed on one outer wall of the rack. A rotating rod is fixed to one outer wall of the gear. A vertical plate is fixed to the bottom end of the feeding pipe, and one end of the rotating rod is rotatably connected to the outer wall of the vertical plate. A second spring is fixed to both outer walls of the vertical plate, and the other end of the second spring is fixed to the outer wall of the gear.

3. A steel structure welded ball positioning device according to claim 2, characterized in that, A lifting plate is fixedly connected to the outer wall of the bottom end of one side of the second shielding plate, and top rods are fixedly connected to the bottom end of the rotating disk corresponding to the position of the lifting plate, and the top rods are distributed in a ring.

4. A steel structure welded ball positioning device according to claim 1, characterized in that, The top of the positioning bracket has symmetrical connecting holes, and bolts are fitted into the connecting holes.

5. A steel structure welded ball positioning device according to claim 1, characterized in that, A connecting rod is fixed to one outer wall of the positioning bracket, and an operation panel is installed on one end of the connecting rod. Operation buttons are distributed on one outer wall of the operation panel.

6. A steel structure welded ball positioning device according to claim 2, characterized in that, A feeding funnel is installed through the top outer wall of the feeding pipe.

7. A steel structure welded ball positioning device according to claim 2, characterized in that, The first spring is sleeved on the outer wall of the lifting rod, and there are four first springs.

8. A steel structure welded ball positioning device according to claim 3, characterized in that, The second spring is sleeved on the outer wall of the rotating rod, and the second spring is a torsion spring.

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