Automatic rolling welding machine for steel bar skeleton of special-shaped concrete products

Abstract

The present invention relates to a rolling welding machine, in particular to an automatic rolling welding machine for steel bar skeletons of concrete products with special-shaped cross-sections. The machine comprises a machine base, a pulling mechanism is provided at the head of the machine base, a clamping mechanism is provided on the pulling mechanism, a gantry is provided at the middle of the machine base, a rotating disk is provided in the gantry, a rotating disk driving mechanism is provided at the machine base, a tail seat is provided at the tail of the machine base, a plurality of radial slideways are provided in the rotating disk, a welding electrode assembly is installed in the slideway, a central axis is provided between the center of the rotating disk and the tail seat, a profiling die assembly is provided at the inner end of the central axis, and the profiling die assembly matches the special-shaped steel bar skeleton. The machine can produce steel bar skeletons with various special-shaped cross-sections and variable cross-sections, improve production efficiency, and have low production costs.

Description

Technical Field

[0001] The invention relates to a rolling welding machine, in particular to an automatic rolling welding machine for a steel bar skeleton of a concrete product with a special-shaped cross-section. Background Art

[0002] With the widespread application of special-shaped and variable-section concrete products (such as prefabricated inspection wells, etc.), the requirements for special-shaped steel bar skeletons have also increased. At present, most of them are still in the stage of manual production of steel bar skeletons. Today, labor costs have increased significantly, manual welding costs are high and efficiency is low, and the demand for automatic rolling welding equipment for steel bar skeletons is becoming increasingly urgent. Summary of the invention

[0003] The present invention aims to solve the above technical problems and provides an automatic rolling welding machine for steel bar skeletons of concrete products with special-shaped cross-sections.

[0004] The technical solution adopted by the present invention to solve the technical problem is:

[0005] An automatic rolling welding machine for steel bar skeletons of concrete products with special-shaped cross-sections comprises a machine base, a pulling mechanism is provided at the head of the machine base, a clamping mechanism is provided on the pulling mechanism, a gantry is provided at the middle of the machine base, a rotating disk is provided in the gantry, a rotating disk driving mechanism is provided at the machine base, a tailstock is provided at the tail of the machine base, a plurality of radial slideways are provided in the rotating disk, a welding electrode assembly is installed in the slideway, a central axis is provided between the center of the rotating disk and the tailstock, a profiling die assembly is mounted on the inner end of the central axis, and the profiling die assembly matches the special-shaped steel bar skeleton.

[0006] Compared with the prior art, the present invention using the above technical solution has the following beneficial effects:

[0007] It can produce a variety of special-shaped and variable-section steel skeletons, improve production efficiency and reduce production costs.

[0008] Further, the optimization scheme of the present invention is:

[0009] The profiling mold assembly is a frame structure, and comprises a left end plate and a right end plate, the left end plate and the right end plate are provided with connecting holes, and a plurality of connecting rods are arranged between the left end plate and the right end plate.

[0010] The profiling mold assembly is a cylindrical structure, comprising a left end plate and a right end plate, the left end plate and the right end plate are provided with connecting holes, and a cylinder is provided between the left end plate and the right end plate.

[0011] A parallel motion mechanism is provided between the profiling die assembly and the tailstock, and the parallel motion mechanism is driven by a variable diameter driving mechanism. The parallel motion mechanism includes a central shaft, a lead screw, a lead screw nut, a slider and a support shaft. The tail end of the central shaft is installed on the tailstock through a bearing seat. The central shaft is a hollow shaft structure. The shaft wall at the inner end of the support shaft is symmetrically provided with axial slide grooves, and a slider is installed in the slide groove. A lead screw is provided in the shaft hole of the central shaft, and a lead screw nut matched with the lead screw is provided at the outer end of the central shaft. The inner end of the lead screw is fixedly connected to the slider; the inner side of the slider is fixedly connected to the support shaft, and the support shaft passes through the connecting holes at both ends of the profiling die assembly. The support shaft is used to support the profiling die assembly. A baffle is provided at the inner end of the support shaft, and the baffle is placed on the inner side of the right end plate.

[0012] The variable diameter driving mechanism includes a motor, a reducer, a driving wheel, a driven wheel and a transmission member. The reducer is driven by the motor. The motor and the reducer are installed in the tailstock. The driving wheel is installed on the output shaft of the reducer. The screw nut is fixedly connected to the driven wheel. The driving wheel and the driven wheel are transmitted through the transmission member.

[0013] The welding electrode assembly includes a slider seat, a slider body, a welding electrode, a conductive electrode, a slider pressure plate, a support wheel and a rib-penetrating tube. The slider seat is installed in a slideway, a slider pressure plate is provided on the outer side of the slideway, and the slider pressure plate is fixedly connected to the slider seat; the slider body is axially arranged at the lower end of the slider seat, a conductive electrode is provided on the upper part of the slider body, and a welding electrode is provided at the inner end of the slider body; the slider body, the slider seat and the slider pressure plate are respectively provided with coaxial rib-penetrating holes, and a rib-penetrating tube is provided at the outer end of the slider pressure plate coaxial with the rib-penetrating hole; a support wheel is provided at the lower part of the slider body, and the support wheel corresponds to the slider seat.

[0014] The welding electrode assembly is provided with a clamping mechanism, which includes a spring seat plate, a spring, a locating pin and a pin shaft seat. The spring seat plate is fixedly connected to the upper end of the slider seat, and the two ends of the spring seat plate are respectively connected to the upper end of the spring. The pin shaft seat is fixedly connected between adjacent slideways, and the pin shaft seat is close to the center of the rotating disk. The locating pin is fixedly connected to the pin shaft seat, and the lower end of the spring is connected to the locating pin. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a front view of an embodiment of the present invention;

[0016] Figure 2 yes Figure 1 Left view of;

[0017] Figure 3 is a front view of a welding assembly according to an embodiment of the present invention;

[0018] Figure 4 yes Figure 3 Left view of;

[0019] Figure 5 Schematic diagram of a quadrangular pyramid-shaped profiling mold assembly according to an embodiment of the present invention;

[0020] Figure 6 Schematic diagram of a frustum-shaped contoured mold assembly according to an embodiment of the present invention;

[0021] Figure 7 Schematic diagram of a rectangular steel bar skeleton according to an embodiment of the present invention;

[0022] Figure 8 Schematic diagram of a quadrangular pyramid-shaped steel bar skeleton according to an embodiment of the present invention;

[0023] Fig. 9 is a schematic diagram of an eccentric frustum-shaped steel reinforcement skeleton according to an embodiment of the present invention;

[0024] Fig.10 is a schematic diagram of a frustum-shaped steel reinforcement skeleton according to an embodiment of the present invention;

[0025] In the figure: rotating disk 1; slideway 1-1; rotating disk drive chain 1-2; welding electrode assembly 2; adjusting rod 2-1; slider seat 2-2; slider pressure plate 2-3; tension spring 2-4; conductive electrode 2-5; welding electrode 2-6; slider body 2-7; supporting wheel 2-8; wheel axle 2-9; spring seat plate 2-10; rib tube 2-11; pin seat 2-12; supporting shaft 3; clamping mechanism 4; pulling mechanism 5; profiling mold assembly 6; left end plate 6-1; right end plate 6-2; connecting rod 6-3; parallel motion mechanism 7; screw 7-1; slider 7-2; central shaft 8; tailstock 9; variable diameter driving mechanism 10; driving sprocket 10-1; chain 10-2; driven sprocket 10-3; limiting wheel 11; gantry 12; welding mechanism 13; main frame 14; positioning pin 15; rotating disk power mechanism 16. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0027] See also Figure 1 , Figure 2 This embodiment is an automatic rolling welding machine for steel bars of concrete products with special-shaped cross-sections, which is composed of a rotating disk 1, a welding electrode assembly 2, a supporting shaft 3, a clamping mechanism 4, a pulling mechanism 5, a profiling die assembly 6, a parallel motion mechanism 7, a central shaft 8, a tailstock 9, a variable diameter driving mechanism 10, a limiting wheel 11, a gantry 12, a welding mechanism 13, a main frame 14, a positioning pin 15; a rotating disk power mechanism 16 and a machine base. The pulling mechanism 5 is installed at the head of the machine base, and the pulling mechanism 5 moves axially on the machine base. The pulling mechanism 5 is installed with a clamping mechanism 4, which is used to clamp the longitudinal steel bars and drive the longitudinal steel bars to rotate.

[0028] A gantry 12 is installed in the middle of the machine base, and a tailstock 9 is installed at the tail of the machine base. Four sets of limiting wheels 11 are installed in the gantry 12, and the rotating disk 1 is installed between the four sets of limiting wheels 11. The outer circumference of the rotating disk 1 is processed with a groove structure, and a circle of closed rotating disk drive chain 1-2 is welded to the groove structure. A rotating disk power mechanism 16 is installed on the machine base, and the rotating disk power mechanism 16 is provided with a driving sprocket. The driving sprocket drives the rotating disk 1 to rotate through the rotating disk drive chain 1-2. The four sets of limiting wheels 11 are used to support the rotating disk 1 and limit the axial position of the rotating disk 1. The machine base is installed with a main frame 14, and a welding mechanism 13 is installed on the main frame 14. The welding mechanism 13 has its own welding power supply and walking mechanism. A central shaft 8 is provided between the center of the rotating disk 1 and the tailstock 9. The tail end of the central shaft 8 is installed on the upper part of the tailstock 9 through a bearing seat. The central shaft 8 is a hollow shaft.

[0029] A plurality of radial slideways 1-1 are welded inside the rotating disk 1. The slideway 1-1 is composed of two parallel plates. A welding electrode assembly 2 ( Figure 3 , Figure 4 As shown in the figure, the welding electrode assembly 2 is placed between two flat plates. The welding electrode assembly 2 is composed of a slider seat 2-2, a slider pressure plate 2-3, a conductive electrode 2-5, a welding electrode 2-6, a slider body 2-7, a support wheel 2-8, an axle 2-9 and a rib-piercing tube 2-11. The slider seat 2-2 is installed in the slideway 1-1. The slider seat 2-2 is composed of multiple steel plates connected by bolts. The outer side of the slideway 1-1 is provided with a slider pressure plate 2-3, and the slider pressure plate 2-3 is fixedly connected to the slider seat 2-2. The slider body 2-7 is axially welded to the lower end of the slider seat 2-2, the conductive electrode 2-5 is installed on the upper part of the slider body 2-7, and the welding electrode 2-6 is installed on the inner end of the slider body 2-7. The slider body 2-7, the slider seat 2-2 and the slider pressure plate 2-3 are respectively processed with coaxial rib-piercing holes, and the outer end of the slider pressure plate 2-3 is welded with a rib-piercing tube 2-11 coaxial with the rib-piercing hole. The lower part of the slider body 2-7 is provided with a support wheel 2-8, which is connected to the slider body 2-7 through the wheel shaft 2-9 and the vertical plate, and the support wheel 2-8 corresponds to the slider seat 2-2. The welding electrode assembly 2 is provided with a clamping mechanism, which is composed of an adjustment rod 2-1, a spring 2-4, a spring seat plate 2-10, a positioning pin 15 and a pin seat 2-12. The spring seat plate 2-10 is welded to the upper end of the slider seat 2-2, and the two ends of the spring seat plate 2-10 are respectively installed with the adjustment rod 2-1, which is connected to the spring seat plate 2-10 through a thread, and the inner end of the adjustment rod 2-1 is connected to the outer end of the spring 2-4, and the pin seat 2-12 is welded between adjacent slideways 1-1, and the pin seat 2-12 is close to the center of the rotating disk 1, and the positioning pin 15 is fixedly connected to the pin seat 2-12, and the inner end of the spring 2-4 is connected to the positioning pin 15, and the spring 2-4 is a tension spring.

[0030] The inner end of the central shaft 8 is covered with a profiling die assembly 6, and the shape of the profiling die assembly 6 matches the special-shaped cross section of the special-shaped steel bar skeleton. The profiling die assembly 6 is a frame structure or a barrel structure. The profiling die assembly 6 of the frame structure is composed of a left end plate 6-1, a right end plate 6-2 and a connecting rod 6-3. The two ends of the connecting rod 6-3 are fixedly connected to the left end plate 6-1 and the right end plate 6-2 respectively. The left end plate 6-1 and the right end plate 6-2 are respectively processed with connecting holes. The left end plate 6-1 and the right end plate 6-2 can also adopt a frame structure. The material of the connecting rod 6-3 is round steel, square steel, steel pipe or steel plate. The profiling die assembly 6 of the barrel structure is composed of a left end plate 6-1, a right end plate 6-2 and a barrel (not shown in the figure). The left end plate 6-1 and the right end plate 6-2 are respectively processed with connecting holes, and the barrel is welded between the left end plate 6-1 and the right end plate 6-2. The profiling mold assembly 6 has a cube, an eccentric frustum, a quadrangular pyramid ( Figure 5 shown), truncated cone ( Figure 6 As shown), eccentric quadrangular pyramid and many other shapes.

[0031] A parallel motion mechanism 7 is provided between the profiling die assembly 6 and the tailstock 9, and the parallel motion mechanism 7 is driven by a variable diameter driving mechanism 10. The parallel motion mechanism 7 comprises a central shaft 8, a lead screw 7-1, a lead screw nut, a slider 7-2 and a support shaft 3. The shaft wall at the inner end of the central shaft 8 is symmetrically provided with an axial slide groove, in which a slider 7-2 is installed, a lead screw 7-1 is installed in the shaft hole of the central shaft 8, a lead screw nut matching the lead screw 7-1 is installed at the outer end of the central shaft 8, the lead screw nut is axially limited, and the inner end of the lead screw 7-1 is fixedly connected to the slider 7-2. The inner side of the slider 7-2 is connected to the outer end of the support shaft by bolts, the slider 7-2 is detachably connected to the support shaft, the support shaft is placed in the shaft hole of the central shaft 8, the support shaft is a hollow shaft structure, the support shaft passes through the connecting holes at both ends of the profiling die assembly 6, and a baffle is welded at the inner end of the support shaft, and the baffle is placed on the inner side of the right end plate 6-2. The variable diameter driving mechanism 10 is composed of a motor, a reducer (not shown in the figure), a driving sprocket 10-1, a chain 10-2 and a driven sprocket 10-3. The reducer is driven by the motor. The motor and the reducer are installed in the tailstock 9. The output shaft of the reducer is installed with the driving sprocket 10-1. The screw nut is fixedly connected with the driven sprocket 10-3. The driving sprocket 10-1 and the driven sprocket 10-3 are driven by the chain 10-2. The driven sprocket 10-3 drives the screw nut to rotate, and the screw nut drives the screw 7-1 to move axially.

[0032] The working process of this embodiment is (taking the rectangular parallelepiped profiling die assembly as an example): the rectangular parallelepiped profiling die assembly 6 is assembled on the support shaft, the welding electrode assembly 2 is installed in the slideway 1-1, the support wheel 2-8 is placed on the profiling die assembly, one end of the tension spring 2-4 on the welding electrode assembly 2 is mounted on the spring seat plate 2-10, and the other end of the tension spring 2-4 is fixed on the positioning pin 15 of the rotating disk 1, so that the welding electrode assembly 2 is always close to the profiling die assembly 6; the rotating disk 1 rotates under the drive of the rotating disk power mechanism 16, the clamping mechanism 4 is used to clamp and pull the longitudinal steel bars to move on the machine base, the clamping mechanism 4 rotates synchronously with the rotating disk 1, the welding mechanism 13 performs profiling movement with the rotating disk 1, and compacts and welds the longitudinal steel bars and the circumferential steel bars together, and the welding mechanism 13 has its own welding power supply and walking mechanism. When the variable diameter driving mechanism 10 drives the parallel motion mechanism 7 to move forward and backward, the profiling die assembly 6 also moves forward and backward to achieve the change of specifications. When the profiling die assembly 6 is at a certain position and stationary, a skeleton with a constant cross section is produced. When the profiling mechanism moves at a constant speed during the welding process, a skeleton with a variable cross section ( Figure 7 By replacing different profiling die assemblies 6, different special-shaped steel bar skeletons can be produced ( Figure 8 , Fig. 9 , Fig.10 as shown).

[0033] In the description of the present invention, the terms "first" and "second" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance; the term "multiple" means two or more; the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the description of this specification, the description of the term "one embodiment" or the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic rolling welding machine for steel bars of concrete products with special cross-sections, comprising a machine base, a pulling mechanism is provided at the head of the machine base, a clamping mechanism is provided on the pulling mechanism, a gantry is provided at the middle of the machine base, a rotating disk is provided in the gantry, a rotating disk driving mechanism is provided at the machine base, a tailstock is provided at the tail of the machine base, a plurality of radial slideways are provided in the rotating disk, a welding electrode assembly is installed in the slideway, a central axis is provided between the center of the rotating disk and the tailstock, and the characteristics are as follows: The inner end of the central shaft is provided with a profiling die assembly, and the profiling die assembly matches the special-shaped steel bar skeleton; A parallel motion mechanism is provided between the profiling die assembly and the tailstock, and the parallel motion mechanism is driven by a variable diameter driving mechanism. The parallel motion mechanism comprises a central shaft, a lead screw, a lead screw nut, a slider and a support shaft. The tail end of the central shaft is mounted on the tailstock through a bearing seat. The central shaft is a hollow shaft structure. The shaft wall at the inner end of the support shaft is symmetrically provided with axial slide grooves, and a slider is installed in the slide groove. A lead screw is provided in the shaft hole of the central shaft. A lead screw nut matched with the lead screw is provided at the outer end of the central shaft. The inner end of the lead screw is fixedly connected to the slider; the inner side of the slider is fixedly connected to the support shaft, and the support shaft passes through the connecting holes at both ends of the profiling die assembly. The support shaft is used to support the profiling die assembly. A baffle is provided at the inner end of the support shaft, and the baffle is placed on the inner side of the right end plate of the profiling die assembly; The variable diameter driving mechanism includes a motor, a reducer, a driving wheel, a driven wheel and a transmission member. The reducer is driven by the motor. The motor and the reducer are installed in the tailstock. The output shaft of the reducer is installed with the driving wheel. The lead screw nut is fixedly connected to the driven wheel. The driving wheel and the driven wheel are driven by the transmission member. The welding electrode assembly includes a slider seat, a slider body, a welding electrode, a conductive electrode, a slider pressure plate, a support wheel and a rib-penetrating tube. The slider seat is installed in the slideway, and a slider pressure plate is provided on the outer side of the slideway, and the slider pressure plate is fixedly connected to the slider seat; the slider body is axially arranged at the lower end of the slider seat, and a conductive electrode is provided on the upper part of the slider body, and a welding electrode is provided on the inner end of the slider body; the slider body, the slider seat and the slider pressure plate are respectively provided with coaxial rib-penetrating holes, and the outer end of the slider pressure plate is provided with a rib-penetrating tube coaxial with the rib-penetrating hole; the lower part of the slider body is provided with a support wheel, and the support wheel corresponds to the slider seat; The welding electrode assembly is provided with a clamping mechanism, which includes a spring seat plate, a spring, a locating pin and a pin shaft seat. The spring seat plate is fixedly connected to the upper end of the slider seat, and the two ends of the spring seat plate are respectively connected to the upper end of the spring. The pin shaft seat is fixedly connected between adjacent slideways, and the pin shaft seat is close to the center of the rotating disk. The locating pin is fixedly connected to the pin shaft seat, and the lower end of the spring is connected to the locating pin.

2. The automatic rolling welding machine for steel bars of special-shaped concrete products according to claim 1, characterized in that: The profiling mold assembly is a frame structure, and comprises a left end plate and a right end plate, the left end plate and the right end plate are provided with connecting holes, and a plurality of connecting rods are arranged between the left end plate and the right end plate.

3. The automatic rolling welding machine for steel bars of special-shaped concrete products according to claim 1, characterized in that: The profiling mold assembly is a cylindrical structure, comprising a left end plate and a right end plate, the left end plate and the right end plate are provided with connecting holes, and a cylinder is provided between the left end plate and the right end plate.

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