A device for automatically connecting the tenons at both ends of a standard section brace

Abstract

The invention discloses an automatic docking device for tenons at both ends of a standard section strut, comprising a swinging base, a strut swinging mechanism, a tenon swinging mechanism and an automatic welding mechanism. A plurality of groups of strut swinging mechanisms arranged side by side are arranged on the swinging base. The strut swinging mechanism realizes the clamping of each strut. Tenon swinging mechanisms are arranged at both ends of each group of strut swinging mechanisms. The tenons are clamped by the tenon swinging mechanisms. At the same time, the strut swinging mechanisms and the tenon swinging mechanisms realize the docking of the struts and the tenons. An automatic welding mechanism is arranged between the strut swinging mechanisms and the tenon swinging mechanisms. The docking and automatic welding of the tenons and the struts are facilitated, thereby improving the processing efficiency and reducing the labor intensity of the staff. At the same time, the materials are automatically loaded and swung, thereby improving the swung efficiency.

Description

Technical Field

[0001] The invention relates to the field of tower crane standard section processing equipment, and in particular to a device for automatically connecting tenons at both ends of a standard section support rod. Background Art

[0002] The jointing between the current standard sections mainly adopts the tenons at the upper and lower ends of the standard sections for jointing. The tenons are generally welded to the struts of the standard sections before the standard sections are welded and assembled. In order to ensure the center of the standard section, the tenons at both ends of the struts are coaxial with the struts, so that when multiple standard sections are assembled, it is convenient to splice the tenons with the tenons; the splicing between the tenons and the struts is mainly an arc-shaped welding mold (that is, a semicircular groove body and the groove body and the tenon are in contact with the outer wall of the strut), and the strut and the tenon are placed in the welding mold for welding the tenon and the strut. This welding method is mainly performed manually. During welding, the tenon and the strut need to be rotated, so the work intensity of the staff is relatively large. At the same time, the ear plate needs to be welded on the strut, which is convenient for the subsequent lifting of the standard section. The current welding is mainly performed manually, so the work efficiency is low and the labor intensity of the staff is relatively large. In this way, the struts and the tenons need to be placed on the welding mold for arranging and then welding, which is relatively inefficient. Summary of the invention

[0003] In view of the deficiencies of the above-mentioned prior art, the present invention proposes an automatic docking device for the tenons at both ends of a standard section strut, which is convenient for docking and automatic welding of the tenons and the struts, thereby improving processing efficiency and reducing the labor intensity of the staff, and at the same time automatically loading and assembling, thereby improving assembly efficiency.

[0004] To achieve the above-mentioned purpose, the solution of the present invention is: an automatic docking device for tenons at both ends of a standard section strut, comprising a swinging base, a strut swinging mechanism, a tenon swinging mechanism and an automatic welding mechanism, wherein a plurality of groups of strut swinging mechanisms arranged side by side are arranged on the swinging base, the strut swinging mechanism realizes the clamping of each strut, and a tenon swinging mechanism is arranged at both ends of each group of strut swinging mechanisms, the tenon is clamped by the tenon swinging mechanism, and at the same time, the strut swinging mechanism and the tenon swinging mechanism realize the docking of the strut and the tenon, an automatic welding mechanism is arranged between the strut swinging mechanism and the tenon swinging mechanism, and the docking of the tenon with both ends of the strut is realized by the automatic welding mechanism; the strut swinging mechanism comprises a lifting clamping groove, a rotating assembly and a pressing assembly, wherein a plurality of grooves arranged side by side are arranged on the swinging base, and a corresponding lifting and lowering device is embedded in each groove The lifting and clamping groove is provided with a groove body that fits the outer wall of the support rod at the top of the lifting and clamping groove, and a first lifting hydraulic cylinder is provided between the bottom of the lifting and clamping groove and the bottom of the groove, and the lifting and clamping groove is realized by the first lifting hydraulic cylinder. Rotating components are provided at both ends of the lifting and clamping groove, and the bottom of the rotating component is fixed on the swing base. The rotating component includes a mounting seat, rollers and a height adjustment component. A mounting seat is fixed on the swing base, and a plurality of rollers arranged in a horizontal row are provided above the mounting seat. A height adjustment component is provided between each roller and the mounting seat, and the roller position is adjusted according to the size of the support rod to prevent the support rod from detaching from the rotating component when rotating. A pressing component driven by a motor is provided at the top of the lifting and clamping groove, and a hanging rod is provided on the top of the pressing component, and a second lifting hydraulic cylinder is provided between the hanging rod and the pressing component. The pressing assembly is two pressing wheels driven by a motor and the pressing wheels are installed on the piston rod at the bottom of the second lifting hydraulic cylinder through bearings; a tenon swinging mechanism is arranged on the swinging bases at both ends of the strut swinging mechanism, and the tenon swinging mechanism includes a tenon clamping assembly and a placement pallet, an arc groove in contact with the outer wall of the strut is opened on the top of the placement pallet, the tenon is placed on the placement pallet, and a tenon clamping assembly is arranged on each placement pallet, and the penetration is positioned and clamped by the tenon clamping assembly; a An automatic welding mechanism is arranged on a swinging base. There are multiple automatic welding mechanisms and each automatic welding mechanism is located between the strut swinging mechanism and the tenon swinging mechanism. The welding of the tenon and the strut is realized by the automatic welding mechanism. A contact detection component with the outer wall of the strut and the tenon is arranged on one side of the automatic welding mechanism. The coaxiality of the strut and the tenon is detected by the detection component. A strut feeding mechanism is arranged above the strut swinging mechanism. The feeding of the strut is realized by the strut feeding mechanism. The weight of the tenon is relatively light and can be fed manually.

[0005] Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion.

[0006] Preferably, the tenon clamping assembly includes an annular frame, a swing rod, a movable ring and a pressing roller, wherein the annular frame is fixed to a swing base by a column, and a plurality of swing rods distributed in an annular array are fixed on the annular frame by a hinged manner, each swing rod is provided with a waist-shaped hole, and the movable ring passes through the waist-shaped holes on the plurality of swing rods in sequence, a telescopic assembly is arranged between the annular frame and the movable ring, and a pressing roller is arranged at one end of the swing rod away from the annular frame, and the pressing roller presses on the outer wall of the tenon.

[0007] Preferably, the height adjustment component includes a lifting hydraulic cylinder, an oil tank and a lifting spring. A plurality of lifting hydraulic cylinders are arranged side by side on the top of the mounting seat. The plurality of lifting hydraulic cylinders are connected to the oil tank through pipelines. An electromagnetic valve is arranged between the lifting hydraulic cylinder and the pipeline. The oil supply and disconnection of the lifting hydraulic cylinder are realized by the electromagnetic valve. A roller is installed at the bottom of the lifting hydraulic cylinder. A lifting spring is mounted on the lifting hydraulic cylinder. The lifting and returning of the lifting hydraulic cylinder is realized by the lifting spring, which facilitates the contact between the roller and the outer wall of the support rod.

[0008] Preferably, the automatic welding mechanism comprises an arc track, a welding gun, a sliding seat, a rack and a gear, wherein the bottom of the arc track is fixed on a swinging base and the arc track track is a semicircle, a sliding seat sliding on the arc track is clamped on the arc track, the arc track and the center of the support rod placed in the lifting clamping groove are on the same straight line, a gear driven by a motor is arranged on the sliding seat, a rack consistent with the curvature of the arc track is arranged on the arc track, and the rack is meshed with the gear, and the movement of the sliding seat is realized by the rotation of the gear; a detection component is fixed on the sliding seat, the detection component comprises a pulley, a telescopic rod and a detection spring, wherein two pulleys are arranged on the sliding seat and a telescopic rod is arranged between the pulley and the sliding seat, a detection spring is sleeved on the telescopic rod, and pressure sensors are arranged around the telescopic rod, the bottom of the detection spring is pressed on the pressure sensor, and the other end of the detection spring is against the pulley, the pressure sensor is connected to the controller, the two pulleys are in contact with the outer wall of the support rod / tenon respectively, and the coaxiality of the tenon and the support rod is indicated by the pressure difference.

[0009] Compared with the prior art, the advantages of the present invention are: it is easy to achieve the docking and automatic welding of the tenon and the support rod, thus improving the processing efficiency and reducing the labor intensity of the staff, and at the same time automatically loading and arranging, thus improving the arranging efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a top view of the present invention.

[0011] Figure 2 This is a top view of the present invention without the automatic feeding mechanism.

[0012] Figure 3 It is a partial schematic diagram of the support rod swinging mechanism of the present invention.

[0013] Figure 4 It is a schematic diagram of the pressing assembly of the present invention.

[0014] Figure 5 It is a schematic diagram of the tenon clamping assembly of the present invention.

[0015] Figure 6 It is a schematic diagram of the support rod feeding mechanism of the present invention.

[0016] Figure 7 It is a schematic diagram of the automatic welding mechanism of the present invention.

[0017] Among them, 1. swing base, 2. strut swing mechanism, 2.1. lifting clamping groove, 2.2. first lifting hydraulic cylinder, 2.3. rotating assembly, 2.4. mounting seat, 2.5. roller, 2.6. height adjustment assembly, 2.7. lifting hydraulic cylinder, 2.8. oil tank, 2.9. electromagnetic valve, 2.10. lifting spring, 2.11. pressing assembly, 2.12. second lifting hydraulic cylinder, 2.13. pressing wheel, 3. tenon swing mechanism, 3.1. tenon clamping assembly, 3.2. ring frame, 3.3. swing rod, 3.4. waist-shaped hole, 3.5. moving ring, 3.6. .6. Telescopic assembly, 3.7. Pressing roller, 3.8. Placing pallet, 3.9. Arc groove, 4. Automatic welding mechanism, 4.1. Arc track, 4.2. Welding gun, 4.3. Sliding seat, 4.4. Rack, 4.5. Gear, 4.6. Detection assembly, 4.7. Pulley, 4.8. Telescopic rod, 4.9. Detection spring, 4.10. Pressure sensor, 5. Support rod feeding mechanism, 5.1. Sliding track, 5.2. Sliding block, 5.3. Driving assembly, 5.4. Conical tight block, 5.5. Pushing assembly, 5.6. Pushing cylinder, 5.7. Discharging plate. DETAILED DESCRIPTION

[0018] The present invention will now be further described with reference to the accompanying drawings.

[0019] like Figure 1-7The device for automatically docking the tenons at both ends of a standard section strut is shown, comprising a swinging base 1, a strut swinging mechanism 2, a tenon swinging mechanism 3 and an automatic welding mechanism 4. A plurality of groups of strut swinging mechanisms 2 arranged side by side are arranged on the swinging base 1. The strut swinging mechanism 2 realizes the clamping of each strut. Tenon swinging mechanisms 3 are arranged at the front and rear ends of each group of strut swinging mechanisms 2. The tenons are clamped by the tenon swinging mechanisms 3. At the same time, the strut swinging mechanisms 2 and the tenon swinging mechanisms 3 realize the docking of the struts and the tenons. An automatic welding mechanism 4 is arranged between the strut swinging mechanisms 2 and the tenon swinging mechanisms 3. The tenons are docked with the two ends of the struts by the automatic welding mechanism 4, so that automatic welding is realized without manual welding operation. The strut swinging mechanism 2 comprises a lifting clamp Groove 2.1, rotating assembly 2.3 and pressing assembly 2.11, wherein a plurality of grooves arranged side by side in a transverse manner are provided on the swing base 1, a corresponding lifting clamping groove 2.1 is embedded in each groove, a groove body which fits with the outer wall of the support rod is provided at the top of the lifting clamping groove 2.1, the support rod is placed in the groove body of the lifting clamping groove 2.1, a first lifting hydraulic cylinder 2.2 is provided between the bottom of the lifting clamping groove 2.1 and the bottom of the groove (the cylinder body of the first lifting hydraulic cylinder 2.2 is fixed to the bottom of the groove by bolts, the tops of the piston rods of the plurality of first lifting hydraulic cylinders 2.2 are fixed to the bottom of the lifting clamping groove 2.1 by bolts, and the lifting and lowering of the lifting clamping groove 2.1 is realized by the first lifting hydraulic cylinder 2.2), and the swing bases at the front and rear ends of the lifting clamping groove 2.1 1 are respectively installed with rotating components 2.3 by bolt fastening, and the rotating components 2.3 include a mounting seat 2.4, a roller 2.5 and a height adjustment component. The mounting seat 2.4 is fixed on the swing base 1 by bolt fastening, and a plurality of rollers 2.5 arranged in a horizontal parallel row are arranged above the mounting seat 2.4. A height adjustment component is arranged between each roller 2.5 and the mounting seat 2.4, and the height adjustment component includes a lifting hydraulic cylinder 2.7, an oil tank 2.8 and a lifting spring 2.10. A plurality of lifting hydraulic cylinders 2.7 arranged in parallel are fixed on the top of the mounting seat 2.4 by bolt fastening, and the plurality of lifting hydraulic cylinders 2.7 are connected to the oil tank 2.8 through a pipeline, and a solenoid valve is arranged between the lifting hydraulic cylinder 2.7 and the pipeline The door 2.9 realizes the oil supply and disconnection of the lifting hydraulic cylinder 2.7 through the electromagnetic valve 2.9. The roller 2.5 is installed at the bottom of the lifting hydraulic cylinder 2.7 by bolt fastening. The lifting hydraulic cylinder 2.7 is sleeved with a lifting spring 2.10. The lifting hydraulic cylinder 2.7 is lifted and returned by the lifting spring 2.10, so that the roller 2.5 is easy to contact with the outer wall of the support rod. The position of the roller 2.5 is adjusted according to the size of the support rod to prevent the support rod from being separated from the rotating component 2.3 when rotating. A pressing component 2.11 driven by a motor is provided at the top of the lifting clamping groove 2.1. A hanging rod (the hanging rod is hung on the roof) is provided at the top of the pressing component 2.11, and a second lifting hydraulic cylinder 2.12. The cylinder body and piston rod of the second lifting hydraulic cylinder 2.12 are respectively fixed to the suspension frame and the pressing assembly 2.11 by bolts. The pressing assembly 2.11 is two pressing wheels 2.13 driven by a motor, and the pressing wheels 2.13 are installed on the piston rod at the bottom of the second lifting hydraulic cylinder 2.12 through bearings. The pressing wheels 2.13 are fixed to the top of the piston rod of the second lifting hydraulic cylinder 2.12 through a bearing seat, and the pressing wheels 2.13 are driven by a motor. When positioning is required, the lifting clamping groove 2.1 rises to contact and position with the outer wall of the support rod, and at the same time, the pressing wheel 2.13 descends under the action of the second lifting hydraulic cylinder 2.12 to press the top of the support rod, and at the same time, the electromagnetic valve 2.9 of the rotating assembly 2.3 is opened, and the roller 2.5 is driven by the spring. When the support rod needs to be rotated, the lifting and clamping groove 2.1 is lowered, the support rod is supported by the roller 2.5, and the pressing wheel 2.13 starts to rotate, thereby driving the support rod to rotate, so that it is convenient to switch the position of the support rod during welding. When the rotation is completed, the lifting and clamping groove 2.1 continues to rise, and the pressing wheel 2.13 stops rotating; a tenon swinging mechanism 3 is provided on the swinging base 1 at the front and rear ends of the support rod swinging mechanism 2, and the tenon swinging mechanism 3 includes a tenon clamping assembly 3.1 and a placement support plate 3.8, and the top of the placement support plate 3.8 is provided with an arc-shaped member in contact with the outer wall of the support rod. The slot 3.9 and the placing support plate 3.8 are fixed on the swing base 1 by bolts, the tenon is placed on the placing support plate 3.8, and a tenon clamping assembly 3.1 is arranged on each placing support plate 3.8, and the penetration is positioned and clamped by the tenon clamping assembly 3.1, and the placing support plate 3.8 is fixed with a positioning pin by a cylinder, and the positioning pin is a conical positioning pin, and the positioning pin is extended and retracted by the cylinder, and the positioning is achieved by extending the positioning pin into the pin hole of the tenon, and a lifting rod is fixed at the bottom of the cylinder by welding, and the lifting rod is vertically inserted into the top of the placing support plate 3.8, so that the lifting rod can be extended and retracted, that is, the vertical adjustment of the tenon can be performed; when the support rod swings, An automatic welding mechanism 4 is arranged between the bridging mechanism 2 and the tenon swinging bridging mechanism 3. The automatic welding mechanism 4 is arranged on the swinging bridging base 1. There are multiple automatic welding mechanisms 4 and each automatic welding mechanism 4 is located between the strut swinging bridging mechanism 2 and the tenon swinging bridging mechanism 3. The tenon and the strut are welded by the automatic welding mechanism 4. A contact detection component 4.6 with the outer wall of the strut and the tenon is arranged on one side of the automatic welding mechanism 4. The coaxiality of the strut and the tenon is detected by the detection component 4.6. A strut feeding mechanism 5 is arranged above the strut swinging bridging mechanism 2. The strut is fed by the strut feeding mechanism 5. The weight of the tenon is relatively light and can be fed manually.

[0020] The support rod loading mechanism 5 includes a sliding track 5.1, a sliding block 5.2, a driving assembly 5.3, a conical pressing block 5.4 and a push-up cylinder 5.6. The sliding track 5.1 is two and the two sliding tracks 5.1 are arranged side by side (the sliding track 5.1 is an oblong closed track). The sliding track 5.1 is suspended above the support rod swinging mechanism 2 through a hanging frame. A plurality of sliding blocks 5.2 sliding on the sliding blocks 5.2 are arranged on the sliding track 5.1. The plurality of sliding blocks 5.2 are driven by a driving assembly 5.3 (the driving assembly 5.3 is a chain meshed with a sprocket, and the sprocket is driven by a motor). Drive, multiple sliding blocks 5.2 are fixed on the chain by welding, so that the sliding blocks 5.2 can move on the sliding track 5.1, that is, the track chain conveying mechanism that is widely used in factory transportation now) is moved, and a fixed block is fixed on the bottom of each sliding block 5.2 by welding, and a longitudinally arranged sleeve is passed through and fixed by welding on each fixed block, and a sliding rod sliding in the sleeve is arranged in the sleeve, and a conical tight block 5.4 (the conical positioning block is conical) is fixed on the inner side of the sliding rod by welding, and the conical positioning block extends into The support rod is positioned and clamped inside the support rod, so that the two conical clamping blocks 5.4 can clamp the support rod. A spring is sleeved on the sliding rod to pull the sliding rod inward. A plurality of ejecting cylinders 5.6 are fixed on the outer side of each sliding track 5.1 by welding. A discharge plate 5.7 is fixed on the piston rod of the plurality of ejecting cylinders 5.6 on each side by bolt fastening, and the discharge plate 5.7 is in contact with the end of the sliding rod away from the conical clamping block 5.4 (a limit rod extending upward is welded on the end of the sliding rod away from the conical clamping block 5.4, and the discharge plate 5.7 is in contact with the inner side of the limit rod) , the conical pressing block 5.4 is pushed outward by the lifting of the pushing cylinder 5.6, so that the conical pressing block 5.4 leaves the strut; the strut is transported above the strut swinging mechanism 2 through the sliding track 5.1. When loading is required, the lifting clamping groove 2.1 rises and supports the strut clamped on the conical pressing block 5.4. At the same time, the pushing cylinder 5.6 is lifted, and the conical pressing block 5.4 slides outward, so that the conical pressing block 5.4 loses the clamping of the strut (hollow round rod). At the same time, the lifting clamping groove 2.1 descends for welding. After welding is completed, the strut is pulled out longitudinally to achieve unloading.

[0021] The tenon clamping assembly 3.1 includes an annular frame 3.2, a swing rod 3.3, a moving ring 3.5 and a pressing roller 3.7, wherein the annular frame 3.2 is fixed to the swing base 1 through a column, a plurality of swing rods 3.3 distributed in an annular array are fixed on the annular frame 3.2 by a hinged manner, each swing rod 3.3 is provided with a waist-shaped hole 3.4, and the moving ring 3.5 passes through the waist-shaped holes 3.4 on the plurality of swing rods 3.3 in sequence, and a roller 3.7 is provided between the annular frame 3.2 and the moving ring 3.5. A telescopic component 3.6 is arranged (the telescopic component 3.6 is a cylinder, and the positioning and clamping of the tenon are realized by the tenon clamping connection, which is convenient for subsequent welding. Since the tenon is lighter than the support rod, it will jump during welding, which ensures the coaxiality). A pressing roller 3.7 is fixed to the end of the swing rod 3.3 away from the annular frame 3.2 through a rotating shaft, and the pressing roller 3.7 is pressed on the outer wall of the tenon, so that the pressing roller 3.7 is pressed on the outer wall, which is convenient for the subsequent rotation of the tenon.

[0022] The automatic welding mechanism 4 includes an arc track 4.1, a welding gun 4.2, a sliding seat 4.3, a rack 4.4 and a gear 4.5, wherein the bottom of the arc track 4.1 is fixed to the swing base 1 by bolts and the arc track 4.1 has a semicircular track, and a sliding seat 4.3 is provided on the arc track 4.1 for sliding on the arc track 4.1, and the arc track 4.1 is in the same straight line as the center of the support rod placed in the lifting clamping groove 2.1, and is fixed on the sliding seat 4.3 by bolts. There is a gear 4.5 driven by a motor, and a rack 4.4 having the same curvature as the arc track 4.1 is fixed on the arc track 4.1 by welding, and the rack 4.4 is meshed with the gear 4.5, and the movement of the sliding seat 4.3 is achieved by the rotation of the gear 4.5, so that welding is achieved by the movement of the sliding seat 4.3. Since the arc track 4.1 is a semicircle, the support rod and the tenon need to rotate after welding a semicircle; a detection component 4 is fixed on the top surface of the sliding seat 4.3 by welding. .6, the detection assembly 4.6 includes a pulley 4.7, a telescopic rod 4.8 and a detection spring 4.9, wherein two pulleys 4.7 are arranged on the sliding seat 4.3, and the telescopic rod 4.8 is fixed between the pulley 4.7 and the sliding seat 4.3 by welding, and the detection spring 4.9 is sleeved on the telescopic rod 4.8, and a pressure sensor 4.10 is attached around the telescopic rod 4.8 by glue, and the pressure sensor 4.10 is arranged on the top surface of the sliding seat 4.3, and the bottom of the detection spring 4.9 is pressed on On the pressure sensor 4.10, the other end of the detection spring 4.9 is against the pulley 4.7. The pressure sensor 4.10 is connected to the controller. Through the controller (the controller is a single PLC S7-200. The difference between the outer wall of the support rod and the tenon is obtained by the different lengths of spring compression. When the difference is large, it is necessary to stop welding and reprocess the support rod and the tenon), the two pulleys 4.7 are in contact with the outer wall of the support rod / tenon respectively, and the coaxiality of the tenon and the support rod is indicated by the pressure difference.

Claims

1. An automatic docking device for tenons at both ends of a standard section strut, comprising a swinging base, a strut swinging mechanism, a tenon swinging mechanism and an automatic welding mechanism, wherein a plurality of groups of strut swinging mechanisms arranged side by side are arranged on the swinging base, the strut swinging mechanism realizes the clamping of each strut, and tenon swinging mechanisms are arranged at both ends of each group of strut swinging mechanisms, the tenons are clamped by the tenon swinging mechanisms, and the struts and the tenons are docked at the same time by the strut swinging mechanisms and the tenon swinging mechanisms, and an automatic welding mechanism is arranged between the strut swinging mechanisms and the tenon swinging mechanisms, and the tenons are docked with both ends of the struts by the automatic welding mechanism; it is characterized in that The support rod swinging mechanism comprises a lifting clamping groove, a rotating assembly and a pressing assembly, wherein a plurality of grooves arranged side by side are arranged on the swinging base, and a corresponding lifting clamping groove is embedded in each groove, a groove body which fits the outer wall of the support rod is arranged at the top of the lifting clamping groove, a first lifting hydraulic cylinder is arranged between the bottom of the lifting clamping groove and the bottom of the groove, and the lifting and lowering of the lifting clamping groove is realized by the first lifting hydraulic cylinder, and a rotating assembly is arranged at both ends of the lifting clamping groove, and the bottom of the rotating assembly is fixed on the swinging base, and the rotating assembly comprises a mounting seat, a roller and a height adjustment assembly, a mounting seat is fixed on the swinging base, a plurality of rollers arranged in a horizontal row are arranged above the mounting seat, and a height adjustment assembly is arranged between each roller and the mounting seat, and the roller position is adjusted according to the size of the support rod to prevent the support rod from detaching from the rotating assembly when rotating, and a pressing assembly driven by a motor is arranged at the top of the lifting clamping groove, a hanging rod is arranged at the top of the pressing assembly, and a second lifting hydraulic cylinder is arranged between the hanging rod and the pressing assembly. The pressing assembly is two pressing wheels driven by a motor and the pressing wheels are installed on the piston rod at the bottom of the second lifting hydraulic cylinder through bearings; a tenon swinging mechanism is arranged on the swinging bases at both ends of the strut swinging mechanism, and the tenon swinging mechanism includes a tenon clamping assembly and a placement pallet, an arc groove in contact with the outer wall of the strut is opened on the top of the placement pallet, the tenon is placed on the placement pallet, and a tenon clamping assembly is arranged on each placement pallet, and the penetration is positioned and clamped by the tenon clamping assembly; a An automatic welding mechanism is arranged on a swinging base. There are multiple automatic welding mechanisms and each automatic welding mechanism is located between the strut swinging mechanism and the tenon swinging mechanism. The welding of the tenon and the strut is realized by the automatic welding mechanism. A contact detection component with the outer wall of the strut and the tenon is arranged on one side of the automatic welding mechanism. The coaxiality of the strut and the tenon is detected by the detection component. A strut feeding mechanism is arranged above the strut swinging mechanism. The feeding of the strut is realized by the strut feeding mechanism. The weight of the tenon is relatively light and can be fed manually.

2. The automatic jointing device for the tenons at both ends of a standard section brace according to claim 1 is characterized in that: The support rod loading mechanism comprises a sliding rail, a sliding block, a driving assembly, a conical tight block and a pushing cylinder. The sliding rails are divided into two and the two sliding rails are arranged side by side. The sliding rails are suspended by a hanging frame. A plurality of sliding blocks sliding on the sliding block are arranged on the sliding rails. The plurality of sliding blocks are moved by the driving assembly. A fixed block is fixed to the bottom of each sliding block. A longitudinally arranged sleeve is fixed on each fixed block and a sliding rod sliding in the sleeve is arranged in the sleeve. A conical tight block is fixed on the sliding rod and the conical positioning block extends into the support rod to position the support rod. A spring is sleeved on the sliding rod to slide the sliding rod inward. A plurality of pushing cylinders are fixed on the outside of each sliding rail, and a discharge plate is fixed on the piston rods of the plurality of pushing cylinders on each side, and the discharge plate is in contact with one end of the sliding rod away from the conical tight block, and the conical tight block is pushed outward by the lifting of the pushing cylinder.

3. The automatic jointing device for the tenons at both ends of a standard section brace according to claim 2 is characterized in that: The tenon clamping assembly includes an annular frame, a swing rod, a movable ring and a pressing roller, wherein the annular frame is fixed to a swing base through a column, and a plurality of swing rods distributed in an annular array are fixed on the annular frame in a hinged manner, each swing rod is provided with a waist-shaped hole, and the movable ring passes through the waist-shaped holes on the plurality of swing rods in sequence, a telescopic assembly is arranged between the annular frame and the movable ring, and a pressing roller is arranged at one end of the swing rod away from the annular frame, and the pressing roller presses on the outer wall of the tenon.

4. The automatic jointing device for the tenons at both ends of a standard section brace according to claim 3 is characterized in that: The height adjustment component includes a lifting hydraulic cylinder, an oil tank and a lifting spring. A plurality of lifting hydraulic cylinders are arranged side by side on the top of the mounting seat. The plurality of lifting hydraulic cylinders are connected to the oil tank through pipelines. An electromagnetic valve is arranged between the lifting hydraulic cylinder and the pipeline. The oil supply and disconnection of the lifting hydraulic cylinder are realized by the electromagnetic valve. A roller is installed at the bottom of the lifting hydraulic cylinder. A lifting spring is mounted on the lifting hydraulic cylinder. The lifting and returning of the lifting hydraulic cylinder is realized by the lifting spring, which facilitates the contact between the roller and the outer wall of the support rod.

5. The automatic jointing device for the tenons at both ends of a standard section brace according to claim 4 is characterized in that: The automatic welding mechanism comprises an arc track, a welding gun, a sliding seat, a rack and a gear, wherein the bottom of the arc track is fixed on a swinging base and the arc track track is a semicircle, a sliding seat sliding on the arc track is clamped on the arc track, the arc track and the center of the support rod placed in the lifting clamping groove are on the same straight line, a gear driven by a motor is arranged on the sliding seat, a rack consistent with the arc of the arc track is arranged on the arc track, and the rack is meshed with the gear, and the movement of the sliding seat is realized by the rotation of the gear; a detection component is fixed on the sliding seat, the detection component comprises a pulley, a telescopic rod and a detection spring, wherein two pulleys are arranged on the sliding seat and a telescopic rod is arranged between the pulley and the sliding seat, a detection spring is sleeved on the telescopic rod, and a pressure sensor is arranged around the telescopic rod, the bottom of the detection spring is pressed on the pressure sensor, and the other end of the detection spring is against the pulley, the pressure sensor is connected to the controller, and the two pulleys are respectively in contact with the outer wall of the support rod / tenon, and the coaxiality of the tenon and the support rod is indicated by the pressure difference.

Images