Steel bar truss welding point clamping anti-open welding device

Abstract

The invention relates to the field of steel bar truss machining, in particular to a steel bar truss welding point clamping anti-open welding device which comprises an operation table, a first side plate and a second side plate, the first side plate and the second side plate are arranged at the two ends of the operation table, and positioning grooves are formed in the first side plate and the second side plate and are of inverted-T-shaped structures; an equipment bin is mounted on the first side plate and the second side plate; the upper chord steel bar clamping mechanism and the lower chord steel bar clamping mechanism are both arranged in the equipment bin, and the upper chord steel bar clamping mechanism comprises a servo motor. The upper chord steel bar and the lower chord steel bar can be rapidly positioned through the positioning groove of the inverted-T-shaped structure, meanwhile, the upper chord steel bar is clamped through the upper chord steel bar clamping mechanism installed on the side edge of the positioning groove, the lower chord steel bar is clamped through the lower chord steel bar clamping mechanism installed on the side edge of the positioning groove, and high-quality welding is guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of steel bar truss processing, and specifically relates to a clamping and anti-welding-opening device for the welding points of steel bar trusses. Background Art

[0002] The welding of steel bar trusses refers to assembling and welding the upper chord steel bars, lower chord steel bars, and web bars, and welding and fixing the support vertical steel bars and support horizontal steel bars at both ends to form an integral steel bar truss.

[0003] When welding steel bar trusses, the shorter the gap between the lower chord steel bars, the higher the welding point height of the upper chord steel bars. Conversely, the longer the gap between the lower chord steel bars, the lower the welding point height of the upper chord steel bars. At this time, the angle of the web bars connecting the lower chord steel bars and the upper chord steel bars will change, and at the same time, the welding points will also change. And the positioning of the web bars is the basis for ensuring the welding quality of steel bar trusses. When the existing equipment adjusts when the welding points of steel bar trusses do not follow the conventional method, it is impossible to ensure that the two welding points of the web bars fully fit with the adjusted upper chord steel bars and lower chord steel bars. Therefore, it is very easy to cause the separation of the endpoints of the welding points, or the welding points are too rough to reach the welding quality, resulting in potential safety hazards in the subsequent use of steel bar trusses. Summary of the Invention

[0004] In view of the above problems, it is necessary to provide a clamping and anti-welding-opening device for the welding points of steel bar trusses in view of the problems of the prior art.

[0005] To solve the problems of the prior art, the technical solution adopted by the present invention is as follows:

[0006] A clamping and anti-welding-opening device for the welding points of steel bar trusses, including an operating table and first side plates and second side plates provided at both ends thereof. Positioning grooves are provided on both the first side plates and the second side plates. The positioning grooves are of an inverted "T" shape structure, and equipment bins are installed on the first side plates and the second side plates;

[0007] An upper chord steel bar clamping mechanism and a lower chord steel bar clamping mechanism. The upper chord steel bar clamping mechanism and the lower chord steel bar clamping mechanism are both arranged in the equipment bin. The upper chord steel bar clamping mechanism includes a servo motor, and a first driving wheel is installed on the output end of the servo motor. A second driving wheel is arranged on the side of the first driving wheel;

[0008] A first swing rod is installed on the first driving wheel, and the first driving wheel and the second driving wheel are in meshing connection;

[0009] The second driving wheel is provided with a second swing rod, the second swing rod is provided with a second slide groove, the second slide groove is provided with a second limit slide rod, the second limit slide rod is connected with two sliders, the second slider is provided with a second slide rail nested and slidable therewith, the second slider is provided with a guide rod, and the upper end of the guide rod is provided with a first rack;

[0010] The first side plate is provided with a web bar clamping mechanism at the other side of the upper chord steel bar clamping mechanism and the lower chord steel bar clamping mechanism, and a control panel is installed on the first side plate.

[0011] The operating table is provided with a mounting rail close to the second side plate, and a convex piece is provided on the upper side of the mounting rail;

[0012] The operating table is connected to the second side plate in a snap-fitting manner, a mounting plate is mounted on the second side plate, a groove corresponding to the protruding piece is arranged on the upper side of the mounting plate, and buckle grooves are arranged on both sides of the second side plate close to the groove;

[0013] The mounting rail is connected to the mounting plate in a snap-fitting manner, and the protruding piece is connected to the groove in a snap-fitting manner.

[0014] The first swing rod is provided with a first slide groove, a first limit slide rod is arranged in the first slide groove, a first slider is connected to the first limit slide rod, a first slide rail is arranged outside the first slider and is nested and connected therewith, and a first push rod is installed on the first slider;

[0015] The first limiting slide rod and the first slide groove are nested and slidably connected, the first limiting slide rod and the first sliding block are welded and fixed, the first sliding block and the first push rod are designed as one body, and a rubber layer is attached to the surface of the first push rod.

[0016] The second limit sliding rod and the second sliding groove are connected in a nested sliding manner, the second limit sliding rod and the second sliding block are welded and fixed, and the second sliding block and the second sliding rail are connected in a nested sliding manner;

[0017] The guide rod and the second sliding block are designed as one body, and the guide rod is fixedly connected to the first rack.

[0018] The lower chord steel bar clamping mechanism comprises a first gear, a second rack, a second push rod, a stabilizing rod, a stabilizing seat limiting seat and a limiting rod, and the first gear is meshingly connected with the first rack;

[0019] A second rack meshing with the first gear is disposed on the side of the first gear, a second push rod is installed on the top of the second rack, and a rubber layer is attached to the upper surface of the second push rod;

[0020] A limit seat is installed on the side of the second rack. A limit rod is arranged on the limit seat. The limit rod is fixedly welded to the first side plate or the second side plate. The limit seat and the limit rod are connected in a nested sliding manner.

[0021] Stabilizing rods are installed on both sides of the second ejector rod. A stabilizing seat is arranged outside the stabilizing rods. The stabilizing seat is fixedly welded to the first side plate or the second side plate. The stabilizing rods and the stabilizing seat are connected in a nested sliding structure.

[0022] The web bar clamping mechanism includes a first driving wheel, a transmission belt, a second driving wheel, a second gear, a third rack, a first positioning slide rod, a first limiting track, a positioning slider, a positioning column, a fourth rack, a second positioning slide rod, a second limiting track, a through-connection seat and a through-connection rod. The first driving wheel is connected to the output end of the servo motor. A second driving wheel is arranged below the first driving wheel. A transmission belt is connected between the first driving wheel and the second driving wheel.

[0023] The second gear is fixedly connected to the second driving wheel. A third rack is arranged below the second gear, and a fourth rack is connected to the upper side.

[0024] A first positioning slide rod penetrates through the third rack, and a first limiting track is installed on the side of the third rack.

[0025] A positioning slider is arranged in the first limiting track, and a positioning column which is engaged with the positioning slider is arranged on the positioning slider.

[0026] A second positioning slide rod fixedly connected to the first side plate penetrates through the fourth rack, and a second limiting track is connected to the fourth rack.

[0027] A positioning slider is arranged in the second limiting track, and a positioning column which is engaged with the positioning slider is arranged on the positioning slider.

[0028] Through-connection seats are installed on one side of the first limiting track and the second limiting track close to the second side plate.

[0029] A through-connection rod which penetrates through the through-connection seat is arranged on the through-connection seat. The through-connection rod is fixedly connected to the operating table.

[0030] The beneficial effects of the present invention compared with the prior art are as follows:

[0031] First, the inverted "T"-shaped positioning groove can quickly position the upper chord steel bars and the lower chord steel bars. At the same time, the upper chord steel bar clamping mechanism installed on the side of the positioning groove clamps the upper chord steel bars, and the lower chord steel bar clamping mechanism installed on the side of the positioning groove clamps the lower chord steel bars, ensuring high-quality welding.

[0032] Second, through the meshing between the first driving wheel and the second driving wheel, the first swing rod and the second swing rod can be driven to swing simultaneously. When the first swing rod swings, the first limiting slide rod is limited in the first chute to drive the first ejector rod on the first slider to push, and the rubber layer attached to the surface of the first ejector rod increases the resistance between the clamping and the upper chord steel bar.

[0033] Third, through the meshing between the first driving wheel and the second driving wheel, the first swing rod and the second swing rod can be driven to swing simultaneously. When the second swing rod swings, the second limiting slide rod is limited in the second chute to drive the guide rod on the second slider to push, and the first gear engaged with the first rack will be rotated, facilitating the operation of the lower chord steel bar clamping mechanism, and clamping the lower chord steel bar through the lower chord steel bar clamping mechanism.

[0034] Fourth, through the first gear meshing with the second rack to drive the second ejector rod installed at its upper end to eject upward, the rubber layer attached to the surface of the second ejector rod increases the resistance between the second ejector rod and the lower chord steel bar. At the same time, the stabilizing rod and the stabilizing seat on the second ejector rod improve the stability of the movement of the second ejector rod.

[0035] Fifth, through the rotation of the first transmission wheel fixed to the output end of the servo motor, the second transmission wheel on the transmission belt is driven to rotate. The fourth rack and the third rack at the upper and lower ends of the second gear on the second transmission wheel are driven to move synchronously, and the first limiting track and the second limiting track are unfolded synchronously. The positioning column at the positioning slider installed on the first limiting track and the second limiting track unfolds the web member steel bar, tops the top end of the web member steel bar on the surface of the upper chord steel bar, and tops the middle part of the web member steel bar against the surface of the lower chord steel bar, reducing the gap between the web member steel bar and the upper chord steel bar and the lower chord steel bar, avoiding the opening of the welding points during welding, and increasing the welding strength of the steel bar truss. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0037] Figure 2 is a schematic diagram of the overall internal top view structure of the present invention;

[0038] Figure 3 is a schematic diagram of the second perspective structure of the overall internal structure of the present invention;

[0039] Figure 4 is a schematic diagram of the installation structure of the upper chord steel bar clamping mechanism of the present invention;

[0040] Figure 5 is a schematic diagram of the connection structure between the upper chord steel bar clamping mechanism and the lower chord steel bar clamping mechanism of the present invention;

[0041] Figure 6 is a schematic diagram of the structure of the upper chord steel bar clamping mechanism of the present invention;

[0042] Figure 7 This is a schematic structural diagram of the lower chord steel bar clamping mechanism of the present invention;

[0043] Figure 8 This is a schematic diagram of the first perspective of the web member steel bar clamping mechanism structure of the present invention;

[0044] Figure 9 This is a schematic diagram of the second perspective of the web member steel bar clamping mechanism structure of the present invention;

[0045] Figure 10 This is a schematic structural diagram of the through-connection seat of the present invention;

[0046] Figure 11 This is a schematic structural diagram of the installation of the second side plate and the operating table of the present invention.

[0047] The reference numerals in the figure are: 1, operating table; 101, installation rail; 102, tab; 2, first side plate; 3, second side plate; 31, installation plate; 32, groove; 33, buckle groove; 4, equipment bin; 5, positioning groove;

[0048] 6, upper chord steel bar clamping mechanism; 601, servo motor;

[0049] 602, first driving wheel; 6021, first swing rod; 6022, first chute; 6023, first limiting slide rod; 6024, first slider; 6025, first slide rail; 6027, first ejector rod;

[0050] 603, second driving wheel; 6031, second swing rod; 6032, second chute; 6033, second limiting slide rod; 6034, second slider; 6035, second slide rail; 6036, guide rod; 6037, first rack;

[0051] 7, lower chord steel bar clamping mechanism; 701, first gear; 702, second rack; 703, second ejector rod; 704, stabilizing rod; 705, stabilizing seat; 706, limiting seat; 707, limiting rod;

[0052] 8, web member steel bar clamping mechanism; 801, first transmission wheel; 802, transmission belt; 803, second transmission wheel; 804, second gear; 805, third rack; 806, first positioning slide rod; 807, first limiting track; 808, positioning slider; 809, positioning post; 810, fourth rack; 811, second positioning slide rod; 812, second limiting track; 813, through-connection seat; 814, through-connection rod;

[0053] 9, control panel. Detailed implementation manners

[0054] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0055] Reference Figures 1 to 11 The present invention provides a technical solution: a device for clamping and preventing welding at welding points of a steel bar truss, comprising an operating table 1 and a first side plate 2 and a second side plate 3 arranged at both ends thereof, a mounting rail 101 is provided at the operating table 1 close to the second side plate 3, a convex piece 102 is provided on the upper side of the mounting rail 101, the operating table 1 and the second side plate 3 are connected in a snap-fitting manner, a mounting plate 31 is installed on the second side plate 3, a groove 32 corresponding to the convex piece 102 is provided on the upper side of the mounting plate 31, and buckle grooves 33 are provided on both sides of the second side plate 3 close to the groove 32;

[0056] The mounting rail 101 is snap-fitted to the mounting plate 31, and the protruding piece 102 is snap-fitted to the groove 32. The disassembly between the second side plate 3 and the operating table 1 can quickly take out the welded steel bar truss and carry out the subsequent welding of the support vertical steel bars and the support horizontal steel bars.

[0057] The first side plate 2 and the second side plate 3 are both provided with positioning grooves 5, which are set to an inverted "T"-shaped structure. The positioning grooves 5 of the inverted "T"-shaped structure can quickly locate the upper chord steel bars and the lower chord steel bars. The first side plate 2 and the second side plate 3 are equipped with equipment bins 4;

[0058] The upper chord steel bar clamping mechanism 6 and the lower chord steel bar clamping mechanism 7 are both arranged in the equipment compartment 4;

[0059] The up-string steel bar clamping mechanism 6 includes a servo motor 601. The up-string steel bar clamping mechanism 6 clamps the up-string steel bar. A first driving wheel 602 is installed at the output end of the servo motor 601. A second driving wheel 603 is arranged on the side of the first driving wheel 602. A first swing rod 6021 is installed on the first driving wheel 602. The first driving wheel 602 and the second driving wheel 603 are meshed. The meshing between the first driving wheel 602 and the second driving wheel 603 can drive the first swing rod 6021 and the second swing rod 6031 to swing simultaneously. A first sliding groove 6022 is formed on the first swing rod 6021. A first limiting sliding rod 6023 is arranged in the first sliding groove 6022. A first sliding block 6024 is connected to the first limiting sliding rod 6023. A first sliding rail 6025 nested with the first sliding block 6024 is arranged outside the first sliding block 6024. A first ejector rod 6027 is installed on the first sliding block 6024. The first limiting sliding rod 6023 and the first sliding groove 6022 are nested and slidably connected. The first limiting sliding rod 6023 and the first sliding block 6024 are welded and fixed. The first sliding block 6024 and the first ejector rod 6027 are integrally designed. A rubber layer is attached to the surface of the first ejector rod 6027. When the first swing rod 6021 swings, the first limiting sliding rod 6023 limits and drives the first ejector rod 6027 on the first sliding block 6024 to push, and the rubber layer attached to the surface of the first ejector rod 6027 is used to increase the resistance between the clamping and the up-string steel bar;

[0060] A second swing rod 6031 is installed on the second driving wheel 603. A second sliding groove 6032 is formed on the second swing rod 6031. A second limiting sliding rod 6033 is arranged in the second sliding groove 6032. A second sliding block 6034 is connected to the second limiting sliding rod 6033. A second sliding rail 6035 nested and slidably connected with the second sliding block 6034 is arranged on the second sliding block 6034. A guide rod 6036 is installed on the second sliding block 6034. A first rack 6037 is arranged at the upper end of the guide rod 6036. The second limiting sliding rod 6033 and the second sliding groove 6032 are nested and slidably connected. The second limiting sliding rod 6033 and the second sliding block 6034 are welded and fixed. The second sliding block 6034 and the second sliding rail 6035 are nested and slidably connected. The guide rod 6036 and the second sliding block are integrally designed. The guide rod 6036 and the first rack 6037 are fixedly connected. The meshing between the first driving wheel 602 and the second driving wheel 603 can drive the first swing rod 6021 and the second swing rod 6031 to swing simultaneously. When the second swing rod 6031 swings, the second limiting sliding rod 6033 limits and drives the guide rod 6036 on the second sliding block 6034 to push, which will drive the first gear 701 meshed with the first rack 6037 to rotate, facilitating the operation of the down-string steel bar clamping mechanism 7.

[0061] The lower chord steel bar clamping mechanism 7 includes a first gear 701, a second rack 702, a second ejector rod 703, a stabilizing rod 704, a stabilizing seat 705, a limiting seat 706 and a limiting rod 707. The first gear 701 is meshed with the first rack 6037;

[0062] A second rack 702 meshing with the first gear 701 is arranged on the side of the first gear 701. The top end of the second rack 702 is provided with a second ejector rod 703. A rubber layer is attached to the upper surface of the second ejector rod 703. The second ejector rod 703 installed at the upper end is driven to eject upward through the meshing of the first gear 701 and the second rack 702. The rubber layer attached to the surface of the second ejector rod 703 increases the resistance between the second ejector rod 703 and the lower chord steel bar;

[0063] A limiting seat 706 is installed at the side of the second rack 702. A limiting rod 707 is arranged on the limiting seat 706. The limiting rod 707 is welded and fixed to the first side plate 2 or the second side plate 3. The limiting seat 706 and the limiting rod 707 are in nested sliding connection. Stabilizing rods 704 are installed on both sides of the second ejector rod 703. A stabilizing seat 705 is arranged outside the stabilizing rods 704. The stabilizing seat 705 is welded and fixed to the first side plate 2 or the second side plate 3. The stabilizing rods 704 and the stabilizing seat 705 are in nested sliding connection structure. The stabilizing rods 704 and the stabilizing seat 705 on the second ejector rod 703 improve the stability of the movement of the second ejector rod 703.

[0064] On the other side of the upper chord steel bar clamping mechanism 6 and the lower chord steel bar clamping mechanism 7, the first side plate 2 is provided with a web bar steel bar clamping mechanism 8. The web bar steel bar clamping mechanism 8 includes a first driving wheel 801, a transmission belt 802, a second driving wheel 803, a second gear 804, a third rack 805, a first positioning slide rod 806, a first limiting track 807, a positioning slider 808, a positioning column 809, a fourth rack 810, a second positioning slide rod 811, a second limiting track 812, a through connection seat 813 and a through connection rod 814. The first driving wheel 801 is connected to the output end of the servo motor 601. A second driving wheel 803 is arranged below the first driving wheel 801. A transmission belt 802 is connected between the first driving wheel 801 and the second driving wheel 803. The second gear 804 is fixedly connected to the second driving wheel 803. A third rack 805 is arranged below the second gear 804, and a fourth rack 810 is connected above. The rotation of the first driving wheel 801 fixed to the output end of the servo motor 601 drives the second driving wheel 803 on the transmission belt 802 to rotate. The fourth rack 810 and the third rack 805 at the upper and lower ends of the second gear 804 on the second driving wheel 803 are driven to move synchronously;

[0065] A first positioning slide rod 806 is disposed through the third rack 805. A first limiting track 807 is installed on the side of the third rack 805. A positioning slider 808 is disposed in the first limiting track 807. A positioning post 809 is disposed on the positioning slider 808 and is engaged therewith. A second positioning slide rod 811 fixedly connected to the first side plate 2 is disposed through the fourth rack 810. A second limiting track 812 is connected to the fourth rack 810. A positioning slider 808 is disposed in the second limiting track 812. A positioning post 809 is disposed on the positioning slider 808 and is engaged therewith. The first limiting track 807 and the second limiting track 812 are unfolded synchronously. The positioning posts 809 at the positioning sliders 808 installed on the first limiting track 807 and the second limiting track 812 unfold the web bars, top the top ends of the web bars on the surface of the upper chord bars, and top the middle parts of the web bars tightly on the surface of the lower chord bars, reducing the gaps between the web bars and the upper chord bars and the lower chord bars, avoiding the opening of the welding points during welding, and increasing the welding strength of the steel bar truss.

[0066] On one side of the first limiting track 807 and the second limiting track 812 close to the second side plate 3, connecting seats 813 are installed. A connecting rod 814 is disposed through the connecting seats 813. The connecting rod 814 is fixedly connected to the operating table 1. The connecting seats 813 and the connecting rod 814 cooperate to realize the movement limit of the other ends of the first limiting track 807 and the second limiting track 812.

[0067] A control panel 9 is installed on the first side plate 2. The control panel 9 turns on and controls the operation of the servo motor 601.

[0068] Working principle: Take out the upper chord bars and place them into the vertical grooves of the positioning grooves 5. Take out the lower chord bars and place them into the horizontal grooves of the positioning grooves 5. Then, adjust the positions. After the positions of the upper chord bars, the lower chord bars and the web bars are debugged, turn on the servo motor 601 through the control panel 9. The servo motor 601 operates, driving the first driving wheel 602 and the first transmission wheel 801 to rotate directly;

[0069] The first driving wheel 602 meshes with the second driving wheel 603 to drive the first swing rod 6021 and the second swing rod 6031 to swing. The first limiting slide rod 6023 on the first swing rod 6021 is limited to slide within the first chute 6022, limiting the swing of the first swing rod 6021 into a driving force. The first ejector rod 6027 on the first slider 6024 pushes towards the positioning groove 5. The rubber layer attached to the surface of the first ejector rod 6027 clamps the upper chord steel bar, performing a clamping process on the upper chord steel bar. When the second swing rod 6031 swings, the second limiting slide rod 6033 is limited within the second chute 6032 to drive the guide rod 6036 on the second slider 6034 to push forward. When the first rack 6037 moves forward, it meshes with the first gear 701. When the first gear 701 rotates, it meshes with the second rack 702 to drive it to slide up and down. The second ejector rod 703 installed at the upper end of the second rack 702 pops up upwards. The rubber layer attached to the surface of the second ejector rod 703 contacts the lower chord steel bar to form a clamping trend, quickly positioning the lower chord steel bar. The stabilizing rods 704 on both sides of the second ejector rod 703 are nested and slide on the stabilizing seat 705, improving the smoothness of the movement of the second ejector rod 703;

[0070] At the same time, the first transmission wheel 801 will also rotate synchronously, driving the second transmission wheel 803 to rotate synchronously through the transmission belt 802. The second gear 804 on the second transmission wheel 803 will also generate a rotational force. The fourth rack 810 at the upper and lower ends of the second gear 804 and the third rack 805 achieve synchronous meshing drive. The fourth rack 810 drives the first limiting track 807 to unfold. The positioning slider 808 installed on the first limiting track 807 can slide and adjust its position. A positioning post 809 is installed on the positioning slider 808 to engage with the concave point of the web member steel bar, driving the web member steel bar to be pushed out. The web member steel bar is pushed against the surfaces of the upper chord steel bar and the lower chord steel bar, reducing the gap between the web member steel bar and the upper chord steel bar and the lower chord steel bar. At the same time, the second limiting track 812 also unfolds synchronously. The positioning post 809 at the positioning slider 808 on the second limiting track 812 will also unfold the web member steel bar, achieving tight clamping. The multi - adaptability can clamp the web member steel bars, upper chord steel bars, and lower chord steel bars placed at different positions. During subsequent welding, the welding points are extremely stable and will not move randomly, improving the reliability of the welding between the web member steel bar, upper chord steel bar, and lower chord steel bar.

[0071] The above embodiments only represent one or several implementation manners of the present invention. The description is relatively specific and detailed, but it cannot be understood as a limitation to the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

1. A clamping and anti-welding-opening device for the welding points of a steel bar truss, characterized in that, The operating table comprises an operating table (1) and a first side plate (2) and a second side plate (3) arranged at both ends thereof, wherein the first side plate (2) and the second side plate (3) are both provided with positioning grooves (5), wherein the positioning grooves (5) are arranged in an inverted "T"-shaped structure, and equipment bins (4) are installed on the first side plate (2) and the second side plate (3); An upper-chord steel bar clamping mechanism (6) and a lower-chord steel bar clamping mechanism (7), wherein the upper-chord steel bar clamping mechanism (6) and the lower-chord steel bar clamping mechanism (7) are both arranged in the equipment compartment (4), wherein the upper-chord steel bar clamping mechanism (6) comprises a servo motor (601), wherein a first driving wheel (602) is mounted on the output end of the servo motor (601), and a second driving wheel (603) is arranged on the side of the first driving wheel (602); A first swing rod (6021) is mounted on the first driving wheel (602), and the first driving wheel (602) is meshingly connected with the second driving wheel (603); The second driving wheel (603) is provided with a second swing rod (6031), the second swing rod (6031) is provided with a second slide groove (6032), a second limit sliding rod (6033) is provided in the second slide groove (6032), the second limit sliding rod (6033) is connected with two sliders (6034), the second slider (6034) is provided with a second slide rail (6035) nested and slidable therewith, the second slider (6034) is provided with a guide rod (6036), and a first rack (6037) is provided at the upper end of the guide rod (6036); The first side plate (2) is provided with a web bar reinforcement clamping mechanism (8) on the other side of the upper chord reinforcement clamping mechanism (6) and the lower chord reinforcement clamping mechanism (7), and a control panel (9) is installed on the first side plate (2).

2. The clamping and anti-welding-opening device for the welding point of a steel bar truss according to claim 1, characterized in that, The operating table (1) is provided with a mounting rail (101) close to the second side plate (3), and a protruding piece (102) is provided on the upper side of the mounting rail (101); The operating table (1) is connected to the second side plate (3) by snap-fitting, a mounting plate (31) is mounted on the second side plate (3), a groove (32) is arranged on the upper side of the mounting plate (31) and is connected to the protruding piece (102), and buckle grooves (33) are arranged on both sides of the second side plate (3) close to the groove (32); The mounting rail (101) and the mounting plate (31) are in a snap-fit connection, and the protruding piece (102) and the groove (32) are in a snap-fit connection.

3. The clamping and anti-welding-opening device for the welding points of a steel bar truss according to claim 1, wherein, The first swing rod (6021) is provided with a first slide groove (6022), a first limit slide rod (6023) is arranged in the first slide groove (6022), a first slider (6024) is connected to the first limit slide rod (6023), a first slide rail (6025) is arranged outside the first slider (6024) and is nested and connected thereto, and a first push rod (6027) is installed on the first slider (6024); The first limiting slide rod (6023) is nested and slidably connected with the first sliding groove (6022). The first limiting slide rod (6023) is fixedly welded to the first slider (6024). The first slider (6024) and the first ejector rod (6027) are integrally designed. A rubber layer is attached to the surface of the first ejector rod (6027).

4. A clamping and anti-welding-opening device for the welding points of a steel bar truss according to claim 1, characterized in that, The second limiting slide rod (6033) is nested and slidably connected with the second sliding groove (6032). The second limiting slide rod (6033) is fixedly welded to the second slider (6034). The second slider (6034) is nested and slidably connected with the second slide rail (6035); The guide rod (6036) and the second slider are integrally designed. The guide rod (6036) is fixedly connected to the first rack (6037).

5. A clamping and anti-welding-opening device for the welding points of a steel bar truss according to claim 1, characterized in that, The lower chord steel bar clamping mechanism (7) includes a first gear (701), a second rack (702), a second ejector rod (703), a stabilizing rod (704), a stabilizing seat (705), a limiting seat (706) and a limiting rod (707). The first gear (701) is meshed with the first rack (6037); A second rack (702) meshing with the first gear (701) is arranged on the side of the first gear (701). A second ejector rod (703) is installed at the top end of the second rack (702). A rubber layer is attached to the upper surface of the second ejector rod (703); A limiting seat (706) is installed on the side of the second rack (702). A limiting rod (707) is arranged on the limiting seat (706). The limiting rod (707) is fixedly welded to the first side plate (2) or the second side plate (3). The limiting seat (706) is nested and slidably connected with the limiting rod (707); Stabilizing rods (704) are installed on both sides of the second ejector rod (703). A stabilizing seat (705) is arranged outside the stabilizing rods (704). The stabilizing seat (705) is fixedly welded to the first side plate (2) or the second side plate (3). The stabilizing rods (704) and the stabilizing seat (705) are of a nested sliding connection structure.

6. The clamping and anti-welding-opening device for the welding point of a steel bar truss according to claim 1, characterized in that, The web bar steel bar clamping mechanism (8) includes a first driving wheel (801), a transmission belt (802), a second driving wheel (803), a second gear (804), a third rack (805), a first positioning slide rod (806), a first limiting track (807), a positioning slider (808), a positioning column (809), a fourth rack (810), a second positioning slide rod (811), a second limiting track (812), a through-connection seat (813) and a through-connection rod (814). The first driving wheel (801) is connected to the output end of the servo motor (601). A second driving wheel (803) is arranged below the first driving wheel (801). A transmission belt (802) is connected between the first driving wheel (801) and the second driving wheel (803); The second gear (804) is fixedly connected to the second transmission wheel (803). A third rack (805) is provided on the lower side of the second gear (804), and a fourth rack (810) is connected to the upper side.

7. The clamping and anti-welding-opening device for the welding point of a steel bar truss according to claim 6, wherein, A first positioning slide rod (806) penetrates through the third rack (805), and a first limiting track (807) is installed on the side of the third rack (805); A positioning slider (808) is arranged in the first limiting track (807), and a positioning column (809) which is engaged with the positioning slider (808) is arranged on the positioning slider (808).

8. A clamping and anti-welding-opening device for the welding points of a steel bar truss according to claim 6, characterized in that, A second positioning slide rod (811) which is fixedly connected to the first side plate (2) penetrates through the fourth rack (810), and a second limiting track (812) is connected to the fourth rack (810); A positioning slider (808) is arranged in the second limiting track (812), and a positioning column (809) which is engaged with the positioning slider (808) is arranged on the positioning slider (808).

9. The clamping and anti-welding-opening device for the welding point of a steel bar truss according to claim 7, characterized in that, Piercing seats (813) are installed on one side of the first limiting track (807) and the second limiting track (812) close to the second side plate (3); A piercing rod (814) which penetrates through the piercing seat (813) is arranged on the piercing seat (813), and the piercing rod (814) is fixedly connected to the operating table (1).

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