Automatic welding device for high-strength bolt of steel structure column

Abstract

The utility model belongs to the technical field of steel structure machining equipment, and relates to a steel structure column high-strength bolt automatic welding device which comprises a welding body and a welding gun, an automatic telescopic rod is arranged at the top of the welding body, an installation frame is installed at the output end of the automatic telescopic rod, a suspension is arranged in the installation frame, and a lead screw sliding table is installed on the suspension. A discharging hole is formed in the center of the feeding disc, an adjusting mechanism is arranged at the bottom of the feeding disc, a bolt lowering hole is formed in the column body, the lifting mechanism is connected to a sliding table of the lead screw sliding table, the feeding disc is installed on the driving mechanism, the column body is connected to the bottom of the feeding disc, and a bolt lowering hole is formed in the column body. The driving mechanism is connected with the lifting mechanism. The welding gun can be attached to the high-strength bolt through the lifting mechanism, the welding position of the high-strength bolt is more accurate, the placing state of the welding gun can be changed through the adjusting mechanism, the application range of the welding gun is widened, and the welding effect of the welding gun on the high-strength bolt is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structure processing equipment, in particular to an automatic welding device for high-strength bolts of steel structure columns. Background Art

[0002] In steel structure processing, especially when processing and welding box columns or I-beam columns, it is often necessary to weld high-strength bolts in rows on them for other connection purposes. At present, workers weld high-strength bolts manually one by one, but for columnar structures, many high-strength bolts are required, and workers weld them one by one. This kind of labor takes a long time, requires many workers and is inefficient. It is also easy to make welding errors. At the same time, long-term welding operations will also pose a greater threat to the health of workers.

[0003] The Chinese utility model with announcement number CN210254644U comprises a welding body, on which an automatic telescopic rod is provided, the top of which is fixedly connected to a supporting cross bar with a flat bottom surface, a screw motor is fixedly mounted at one end of the bottom of the supporting cross bar, a screw seat is fixedly mounted at the other end of the bottom of the supporting cross bar, a transmission screw is connected to the output end of the screw motor, and the outer end of the transmission screw is mounted on the screw seat; a screw moving block is threadedly connected to the transmission screw, the top of the screw moving block moves along the bottom plane of the supporting cross bar, a welding gun rotating motor is fixedly mounted downward at the bottom of the screw moving block, a turntable is connected to the output end of the welding gun rotating motor, an automatic bolt lowering device is mounted downward at the center of the turntable, and an electric welding gun is also mounted on the turntable; the device can realize automatic welding of high-strength bolts, has high operating efficiency, and greatly reduces the labor intensity of the staff.

[0004] The above patent still has defects: the welding gun of the patent has a fixed installation position, the welding gun does not have the function of changing the placement state, and the welding application scope of the welding gun is also limited, which affects the welding effect of the welding gun for welding high-strength bolts. Utility Model Content

[0005] The technical problem to be solved by the utility model is: how to improve the flexibility of a welding gun.

[0006] The utility model provides an automatic welding device for high-strength bolts of steel structure columns, comprising a welding body and a welding gun, wherein a vertically arranged automatic telescopic rod is provided on the top of the welding body, a mounting frame is installed on the output end of the automatic telescopic rod, a suspension is provided in the mounting frame, a screw slide is installed on the suspension, and further comprises a loading tray, a column, a lifting mechanism for adjusting the loading tray up and down, and a driving mechanism for driving the loading tray to rotate, a discharge hole is provided at the center of the loading tray, an adjusting mechanism for adjusting the placement angle of the welding gun is provided at the bottom of the loading tray, a bolt lowering hole is provided in the column, the lifting mechanism is connected to the slide of the screw slide, the loading tray is installed on the driving mechanism, the column is connected to the bottom of the loading tray, the discharge hole is communicated with the bolt lowering hole, and the driving mechanism is connected to the lifting mechanism.

[0007] Preferably, the lifting mechanism includes an L-shaped plate, a first motor, an elliptical cam and a lifting slide, two lifting slides are provided, a sliding handle is provided inside the lifting slide for sliding, a guide rod penetrating the lifting slide is provided at the bottom of the sliding handle, a first spring is sleeved on the guide rod, the L-shaped plate is fixedly connected to the slide of the screw slide, the first motor is horizontally arranged on the back of the L-shaped plate, the elliptical cam is installed on the output end of the first motor, the two lifting slides are symmetrically arranged on the inner top wall of the L-shaped plate, the bottom of the guide rod is connected to the top of the driving mechanism, the two ends of the first spring are fixedly connected to the top of the driving mechanism and the bottom of the lifting slide respectively, and the elliptical cam is in conflict with the top of the driving mechanism.

[0008] Preferably, the driving mechanism includes a U-shaped frame, a second motor and a gear ring, the bottom of the U-shaped frame is provided with two symmetrically arranged suspension blocks, the ends of the suspension blocks are provided with arc-shaped sliders arranged vertically upward, the output end of the second motor is provided with a gear, the outer wall of the loading tray is provided with a circular track that slides with the arc-shaped slider, the top of the U-shaped frame is fixedly connected to the bottom of the guide rod, the second motor is horizontally arranged on the outer wall of the U-shaped frame, the gear ring is arranged on the top of the loading tray, and the gear ring is meshed with the gear.

[0009] Preferably, the adjusting mechanism comprises a translation slide and an adjusting arm, an adjusting screw rotatably provided in the translation slide, one end of the adjusting screw is provided with an adjusting handle, a linkage slide slide slidably in the translation slide, a screw hole matching the adjusting screw is provided on the linkage slide, a rotating seat is provided on the linkage slide, a first connecting head is rotatably provided on the rotating seat, a first limiting component for limiting the first connecting head is provided on the rotating seat, one end of the adjusting arm is provided with a rotating groove, a second connecting head is rotatably provided in the rotating groove, a screw sleeve is installed on the second connecting head, and a second limiting component for limiting the second connecting head is provided on the adjusting arm, the translation slide is invertedly arranged at the bottom of the loading tray, the other end of the adjusting arm is fixedly connected to the first connecting head, and an external thread matching the screw sleeve is provided on the outer wall of the welding gun.

[0010] Preferably, the first limiting assembly includes a pull rod with a polygonal cross-section, an external bracket, a positioning block with a polygonal cross-section and a pull handle, the pull rod is sleeved with a second spring, one end of the pull rod is provided with a positioning sleeve, the outer bracket is provided with a sliding hole for sliding fit of the pull rod, the outer bracket is arranged on the side wall of the rotating seat, the positioning block is connected to the first connecting head, the positioning block and the positioning sleeve are positioned and plugged together, the pull handle is fixedly connected to the other end of the pull rod, the two ends of the second spring are respectively connected to the pull handle and the external bracket, and the second limiting assembly has the same structure as the first limiting assembly.

[0011] Preferably, the adjusting handle is provided with anti-slip grooves.

[0012] Preferably, the handle is provided with anti-slip patterns.

[0013] Preferably, the positioning sleeve is provided with an inner chamfer.

[0014] Preferably, the loading tray is provided with a first material guiding slope connected with the discharge hole.

[0015] Preferably, the bolt lowering hole comprises an upper material passage cavity and a lower material discharge cavity, the cross-sectional area of ​​the upper material passage cavity is larger than the cross-sectional area of ​​the lower material discharge cavity, and a second material guiding slope is provided between the upper material passage cavity and the lower material discharge cavity.

[0016] The beneficial effects of the utility model are:

[0017] The utility model discloses an automatic welding device for high-strength bolts of steel structure columns, which can make the welding gun close to the high-strength bolts through the lifting mechanism, so that the welding position of the high-strength bolts is more accurate, and the placement state of the welding gun can be changed through the adjustment mechanism, thereby improving the application range of the welding gun and improving the welding effect of the welding gun on the high-strength bolts. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the automatic welding device for high-strength bolts of steel structure columns of the utility model;

[0020] Figure 2 This is a partial structural diagram of the automatic welding device for high-strength bolts of steel structure columns of the utility model. Figure 1 ,

[0021] Figure 3 This is a partial cross-sectional view of the automatic welding device for high-strength bolts of steel structure columns of the utility model. Figure 1 ;

[0022] Figure 4 This is a partial structural diagram of the automatic welding device for high-strength bolts of steel structure columns of the utility model. Figure 2 ;

[0023] Figure 5 This is a partial cross-sectional view of the automatic welding device for high-strength bolts of steel structure columns of the utility model. Figure 2 ;

[0024] Figure 6 This is a partial structural diagram of the automatic welding device for high-strength bolts of steel structure columns of the utility model. Figure 3 .

[0025] Figure numerals: 1, welding body; 11, automatic telescopic rod; 12, mounting frame; 13, suspension; 131, screw slide; 14, welding gun; 2, loading plate; 21, circular track; 211, first material guide slope; 22, column; 221, upper material passage cavity; 222, lower material discharge cavity; 223, second material guide slope; 3, lifting mechanism; 31, L-shaped plate; 32, first motor; 33, elliptical cam; 34, lifting slide; 341, sliding handle; 342, guide rod; 343, first spring; 4, driving mechanism; 41, U-shaped frame; 411, suspension block; 412, arc-shaped slider; 42, second motor; 421, gear; 43, gear ring; 5, adjustment mechanism; 51, translation slide; 511, adjustment screw; 512, adjustment handle; 513, linkage slider; 52, rotating seat; 521, first connector; 53, adjustment arm; 531, second connector; 532, screw sleeve; 54, first limit assembly; 541, pull rod; 542, outer bracket; 543, positioning block; 544, pull handle; 545, second spring; 546, positioning sleeve; 55, second limit assembly. DETAILED DESCRIPTION

[0026] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0027] In this embodiment, if Figures 1 to 6 As shown, an automatic welding device for high-strength bolts of steel structure columns includes a welding body 1 and a welding gun 14. A vertically arranged automatic telescopic rod 11 is provided on the top of the welding body 1. A mounting frame 12 is installed on the output end of the automatic telescopic rod 11. A suspension 13 is provided in the mounting frame 12. A screw slide 131 is installed on the suspension 13. It also includes a loading tray 2, a column 22, a lifting mechanism 3 for adjusting the loading tray 2 up and down, and a driving mechanism 4 for driving the loading tray 2 to rotate. A discharge hole is provided at the center of the loading tray 2, and an adjusting mechanism 5 for adjusting the placement angle of the welding gun 14 is provided at the bottom of the loading tray 2. A bolt lowering hole is provided in the column 22. The lifting mechanism 3 is connected to the slide of the screw slide 131. The loading tray 2 is installed on the driving mechanism 4. The column 22 is connected to the bottom of the loading tray 2, and the discharge hole is connected to the bolt lowering hole. The driving mechanism 4 is connected to the lifting mechanism 3.

[0028] The utility model can make the welding gun 14 close to the high-strength bolt through the lifting mechanism 3, so that the welding position of the high-strength bolt is more accurate. The lifting mechanism 3 includes an L-shaped plate 31, a first motor 32, an elliptical cam 33 and a lifting slide 34. The lifting slide 34 is provided with two, a sliding handle 341 is slidably provided in the lifting slide 34, a guide rod 342 that penetrates the lifting slide 34 is provided at the bottom of the sliding handle 341, and a first spring 343 is sleeved on the guide rod 342. The L-shaped plate 31 is fixedly connected to the slide of the screw slide 131, the first motor 32 is horizontally arranged on the back of the L-shaped plate 31, the elliptical cam 33 is installed on the output end of the first motor 32, and the two lifting slides 34 are symmetrically arranged on the inner top wall of the L-shaped plate 31, the bottom of the guide rod 342 is connected to the top of the driving mechanism 4, the two ends of the first spring 343 are respectively fixedly connected to the top of the driving mechanism 4 and the bottom of the lifting slide 34, and the elliptical cam 33 conflicts with the top of the driving mechanism 4.

[0029] The first motor 32 drives the elliptical cam 33 to rotate. After the elliptical cam 33 rotates, it can move downward against the driving mechanism 4. The driving mechanism 4 can drive the welding gun 14 to move downward synchronously, so that the bolt lowering hole outlet of the column 22 can be close to the installation hole position, which makes it easier for high-strength bolts to enter the installation hole position. After the elliptical cam 33 continues to rotate, the elliptical cam 33 loses the pressure on the driving mechanism 4. Then the elastic force of the first spring 343 can drive the driving mechanism 4 to move upward, and the welding gun 14 also moves upward, thereby realizing the up and down movement of the welding gun 14.

[0030] The loading tray 2 can be driven to rotate through the driving mechanism 4, and the loading tray 2 drives the welding gun 14 to rotate synchronously. The driving mechanism 4 includes a U-shaped frame 41, a second motor 42 and a ring gear 43. The bottom of the U-shaped frame 41 is provided with two symmetrically arranged suspension blocks 411, and the ends of the suspension blocks 411 are provided with arc-shaped sliders 412 arranged vertically upward. A gear 421 is provided on the output end of the second motor 42, and a circular track 21 slidingly matched with the arc-shaped slider 412 is provided on the outer wall of the loading tray 2. The top of the U-shaped frame 41 is fixedly connected to the bottom of the guide rod 342, and the second motor 42 is horizontally arranged on the outer wall of the U-shaped frame 41. The ring gear 43 is arranged on the top of the loading tray 2, and the ring gear 43 is meshed with the gear 421.

[0031] The second motor 42 drives the gear 421 to rotate, the gear 421 drives the ring gear 43 to rotate, and the ring gear 43 drives the loading tray 2 to rotate synchronously. The arc-shaped slider 412 can move on the circular track 21, and the loading tray 2 is also supported by the arc-shaped slider 412, the suspension block 411 and the U-shaped frame 41. The adjustment mechanism 5 and the welding gun 14 rotate with the loading tray 2.

[0032] The placement state of the welding gun 14 can be changed by the adjustment mechanism 5, and the adjustment mechanism 5 includes a translation slide 51 and an adjustment arm 53. An adjustment screw 511 is rotatably provided in the translation slide 51, and an adjustment handle 512 is provided at one end of the adjustment screw 511. A linkage slider 513 is slidably provided in the translation slide 51, and a screw hole matching the adjustment screw 511 is provided on the linkage slider 513. A rotating seat 52 is provided on the rotating seat 52, and a first connector 521 is rotatably provided on the rotating seat 52. The rotating seat 52 is provided with a A first limiting component 54 is used to limit the first connecting head 521, one end of the adjusting arm 53 is provided with a rotating groove, a second connecting head 531 is rotatably provided in the rotating groove, a screw sleeve 532 is installed on the second connecting head 531, and a second limiting component 55 for limiting the second connecting head 531 is provided on the adjusting arm 53. The translation slide 51 is invertedly arranged at the bottom of the loading tray 2, the other end of the adjusting arm 53 is fixedly connected to the first connecting head 521, and an external thread matching the screw sleeve 532 is opened on the outer wall of the welding gun 14.

[0033] By rotating the adjusting handle 512, the adjusting handle 512 drives the adjusting screw 511 to rotate, and the adjusting screw 511 drives the linkage slider 513 to translate in the translation slide seat 51 through the screw hole. By rotating the adjusting arm 53, the adjusting arm 53 can rotate around the rotation point of the first connecting head 521. By rotating the screw sleeve 532, the screw sleeve 532 can rotate around the rotation point of the second connecting head 531. The welding gun 14 can adjust the position of the welding gun 14 on the screw sleeve 532 through the cooperation between the external thread thereon and the screw sleeve 532. The above operations can realize the four-axis position adjustment of the welding gun 14, thereby improving the placement flexibility of the welding gun 14.

[0034] The position of the adjusting arm 53 can be limited by the first limiting component 54, and the position of the screw sleeve 532 can be limited by the second limiting component 55. The first limiting component 54 includes a pull rod 541 with a polygonal cross-section, an outer bracket 542, a positioning block 543 with a polygonal cross-section and a pull handle 544. The pull rod 541 is sleeved with a second spring 545, one end of the pull rod 541 is provided with a positioning sleeve 546, a sliding hole for sliding cooperation of the pull rod 541 is opened on the outer bracket 542, the outer bracket 542 is arranged on the side wall of the rotating seat 52, the positioning block 543 is connected to the first connecting head 521, the positioning block 543 and the positioning sleeve 546 are positioned and plugged together, the pull handle 544 is fixedly connected to the other end of the pull rod 541, the two ends of the second spring 545 are respectively connected to the pull handle 544 and the outer bracket 542, and the second limiting component 55 has the same structure as the first limiting component 54.

[0035] The positioning sleeve 546 can be snapped onto the positioning block 543, and the elastic force of the second spring 545 can apply a pulling force to the pull handle 544. The pull handle 544 transmits the pulling force to the pull rod 541, and the pull rod 541 transmits the force to the positioning sleeve 546. The positioning sleeve 546 cannot move, and the positioning sleeve 546 can limit the positioning block 543 at the current position, that is, the positions of the first connector 521 and the second connector 531 are limited. If the limit needs to be released, it is only necessary to pull the pull rod 541 outward through the pull handle 544.

[0036] The adjusting handle 512 is provided with anti-skid grooves to increase friction and avoid slipping.

[0037] The handle 544 is provided with anti-skid grooves to increase friction and prevent slipping.

[0038] The positioning sleeve 546 is provided with an inner chamfer, which improves the smoothness of inserting the positioning sleeve 546 onto the positioning block 543.

[0039] The loading tray 2 is provided with a first material guiding slope 211 connected with the material discharging hole. The high-strength bolts are placed on the first material guiding wedge surface, and the first material guiding slope 211 can guide them into the material discharging hole.

[0040] The bolt lowering hole includes an upper material passage cavity 221 and a lower material discharge cavity 222. The cross-sectional area of ​​the upper material passage cavity 221 is larger than the cross-sectional area of ​​the lower material discharge cavity 222. A second material guide slope 223 is provided between the upper material passage cavity 221 and the lower material discharge cavity 222. The high-strength bolt falls into the upper material passage cavity 221 and is then guided to the lower material discharge cavity 222 through the second material guide slope 223. The high-strength bolt can be automatically arranged in the lower material discharge cavity 222.

[0041] It is worth noting that gate cavities are provided on the side walls on both sides of the bolt lowering hole, a micro electric push rod is provided in the gate cavity, and a gate plate is installed on the output end of the micro electric push rod. This is the prior art, and the specific working principle is referred to in CN210254644U.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. An automatic welding device for high-strength bolts of steel structure columns, comprising a welding body (1) and a welding gun (14), wherein a vertically arranged automatic telescopic rod (11) is provided on the top of the welding body (1), characterized in that: An installation frame (12) is installed on the output end of the automatic telescopic rod (11), a suspension (13) is provided in the installation frame (12), and a screw slide (131) is installed on the suspension (13). The invention also comprises a loading tray (2), a column (22), a lifting mechanism (3) for adjusting the loading tray (2) up and down, and a driving mechanism (4) for driving the loading tray (2) to rotate. A discharge hole is provided at the center of the loading tray (2). An adjusting mechanism (5) for adjusting the placement angle of the welding gun (14) is provided at the bottom of the loading tray (2). A bolt lowering hole is provided in the column (22). The lifting mechanism (3) is connected to the slide of the screw slide (131). The loading tray (2) is installed on the driving mechanism (4). The column (22) is connected to the bottom of the loading tray (2). The discharge hole is connected to the bolt lowering hole. The driving mechanism (4) is connected to the lifting mechanism (3).

2. The automatic welding device for high-strength bolts of steel structure columns according to claim 1 is characterized in that: The lifting mechanism (3) comprises an L-shaped plate (31), a first motor (32), an elliptical cam (33) and a lifting slide (34), wherein two lifting slides (34) are provided, a sliding handle (341) is slidably provided in the lifting slide (34), a guide rod (342) penetrating the lifting slide (34) is provided at the bottom of the sliding handle (341), and a first spring (343) is sleeved on the guide rod (342), the L-shaped plate (31) is fixedly connected to the slide of the screw slide (131), and the first motor (32) is provided to the lifting mechanism (3) (32) is horizontally arranged on the back of the L-shaped plate (31), the elliptical cam (33) is installed on the output end of the first motor (32), the two lifting slides (34) are symmetrically arranged on the inner top wall of the L-shaped plate (31), the bottom of the guide rod (342) is connected to the top of the driving mechanism (4), the two ends of the first spring (343) are fixedly connected to the top of the driving mechanism (4) and the bottom of the lifting slide (34), and the elliptical cam (33) is in contact with the top of the driving mechanism (4).

3. The automatic welding device for high-strength bolts of steel structure columns according to claim 2 is characterized in that: The driving mechanism (4) comprises a U-shaped frame (41), a second motor (42) and a gear ring (43); two symmetrically arranged suspension blocks (411) are arranged at the bottom of the U-shaped frame (41); an arc-shaped slider (412) arranged vertically upward is arranged at the end of the suspension block (411); a gear (421) is arranged at the output end of the second motor (42); a circular track (21) slidably matched with the arc-shaped slider (412) is arranged on the outer wall of the loading tray (2); the top of the U-shaped frame (41) is fixedly connected to the bottom of the guide rod (342); the second motor (42) is horizontally arranged on the outer wall of the U-shaped frame (41); the gear ring (43) is arranged on the top of the loading tray (2); and the gear ring (43) is meshed with the gear (421).

4. The automatic welding device for high-strength bolts of steel structure columns according to claim 1 is characterized in that: The adjustment mechanism (5) comprises a translation slide (51) and an adjustment arm (53); an adjustment screw (511) is rotatably provided in the translation slide (51); an adjustment handle (512) is provided at one end of the adjustment screw (511); a linkage slider (513) is slidably provided in the translation slide (51); a screw hole matching the adjustment screw (511) is provided on the linkage slider (513); a rotating seat (52) is rotatably provided on the rotating seat (52); a first connecting head (521) is rotatably provided on the rotating seat (52); a screw for connecting the first connecting head (521) is provided on the rotating seat (52); ) is provided with a first limiting component (54) for limiting the position, one end of the adjusting arm (53) is provided with a rotating groove, a second connecting head (531) is rotatably provided in the rotating groove, a screw sleeve (532) is installed on the second connecting head (531), a second limiting component (55) for limiting the position of the second connecting head (531) is provided on the adjusting arm (53), the translation slide (51) is invertedly arranged at the bottom of the loading tray (2), the other end of the adjusting arm (53) is fixedly connected to the first connecting head (521), and an external thread matching the screw sleeve (532) is provided on the outer wall of the welding gun (14).

5. The automatic welding device for high-strength bolts of steel structure columns according to claim 4 is characterized in that: The first limiting component (54) includes a pull rod (541) with a polygonal cross-section, an outer bracket (542), a positioning block (543) with a polygonal cross-section and a pull handle (544); the pull rod (541) is sleeved with a second spring (545); one end of the pull rod (541) is provided with a positioning sleeve (546); the outer bracket (542) is provided with a sliding hole for the pull rod (541) to slide with; the outer bracket (542) is arranged on the side wall of the rotating seat (52); the positioning block (543) is connected to the first connecting head (521); the positioning block (543) and the positioning sleeve (546) are positioned and plugged together; the pull handle (544) is fixedly connected to the other end of the pull rod (541); the two ends of the second spring (545) are respectively connected to the pull handle (544) and the outer bracket (542); the second limiting component (55) has the same structure as the first limiting component (54).

6. The automatic welding device for high-strength bolts of steel structure columns according to claim 5 is characterized in that: The adjusting handle (512) is provided with anti-slip grooves.

7. The automatic welding device for high-strength bolts of steel structure columns according to claim 6 is characterized in that: The handle (544) is provided with anti-slip grooves.

8. The automatic welding device for high-strength bolts of steel structure columns according to claim 7 is characterized in that: The positioning sleeve (546) is provided with an inner chamfer.

9. The automatic welding device for high-strength bolts of steel structure columns according to claim 1 is characterized in that: The loading tray (2) is provided with a first material guiding inclined surface (211) connected with the material discharging hole.

10. The automatic welding device for high-strength bolts of steel structure columns according to claim 1 or 9, characterized in that: The bolt lowering hole comprises an upper material passage cavity (221) and a lower material discharge cavity (222); the cross-sectional area of ​​the upper material passage cavity (221) is greater than the cross-sectional area of ​​the lower material discharge cavity (222); and a second material guiding inclined surface (223) is provided between the upper material passage cavity (221) and the lower material discharge cavity (222).

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