CN114986183B - Pipe forming equipment for preprocessing seat framework and working method of pipe forming equipment - Google Patents
Pipe forming equipment for preprocessing seat framework and working method of pipe forming equipment Download PDFInfo
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- CN114986183B CN114986183B CN202210741112.7A CN202210741112A CN114986183B CN 114986183 B CN114986183 B CN 114986183B CN 202210741112 A CN202210741112 A CN 202210741112A CN 114986183 B CN114986183 B CN 114986183B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/04—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass for both machining and other metal-working operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
- B23Q15/20—Automatic control or regulation of feed movement, cutting velocity or position of tool or work before or after the tool acts upon the workpiece
- B23Q15/22—Control or regulation of position of tool or workpiece
- B23Q15/26—Control or regulation of position of tool or workpiece of angular position
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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Abstract
The invention discloses pipe forming equipment for seat framework preprocessing and a working method thereof. The pipe forming equipment comprises a base, a pipe conveying mechanism, a groove cutting device and a pressure forming device, wherein the pipe conveying mechanism, the groove cutting device and the pressure forming device are arranged on the base. The groove cutting device comprises a portal frame, a large bedplate, a lifting power assembly, a small bedplate, an inclined power assembly and a cutting assembly. The pressure forming device comprises a deformation workbench, a workbench guide rail, a workbench driving assembly and a pipe bending forming assembly. The invention can automatically extrude the wave section and the circular arc section on the straight pipe material, and automatically cut the grooves at the two ends of the metal pipe material; the groove provides the space required for welding after the bending operation. In addition, the two sides of the pipe are sequentially and alternately provided with the rolling wheels, and various pipe shapes can be obtained by controlling the pushing-out degree of each rolling wheel, so that one forming device is used for forming the pipe at various positions of the seat frame.
Description
Technical Field
The invention belongs to the technical field of intelligent manufacturing, and particularly relates to pipe forming equipment for seat framework preprocessing and a working method thereof.
Background
The metal frameworks such as the backrest and the seat surface are important components with wide range in the manufacturing of seating furniture in the chair industry, and almost all seating furniture manufacturing enterprises currently adopt manual or semi-automatic operation modes, so that the production efficiency is low, the labor intensity of operators is high, and the quality consistency of the working procedures such as pipe bending, forming, beveling and the like is poor. The existing pipe preforming equipment can only process the pipe into a single specific shape, such as wave shape and circular arc shape, through a die; the seat framework relates to a plurality of special-shaped pipe material sections with different shapes (taking a backrest framework as an example, the different positions of one pipe material need to be processed into wave shapes and circular arcs); if the existing pipe preforming equipment is used for realizing full automation of preforming of the special-shaped part of the seat framework, the problems of large equipment occupation area and high cost exist. Therefore, the seat manufacturing enterprises in the chair industry urgently need a pipe forming device capable of automatically bending and deforming the linear pipe into various shapes to replace the existing manual or semi-automatic operation mode, improve the production efficiency and the manufacturing quality, and supplement a key ring for the automatic intelligent production line for manufacturing the seat in the chair industry.
Disclosure of Invention
The invention aims to provide pipe forming equipment for seat framework preprocessing and a working method thereof.
A pipe forming device for seat framework preprocessing comprises a base, and a pipe conveying mechanism, a groove cutting device and a pressure forming device which are arranged on the base. The pipe conveying mechanism is used for conveying pipe. The groove cutting device is used for cutting a groove at the end part of the metal pipe material.
The groove cutting device comprises a portal frame, a large bedplate, a lifting power assembly, a small bedplate, an inclined power assembly and a cutting assembly. The door frame is arranged on the base; the large bedplate is connected to the portal in a sliding way and is driven by the lifting power component. The small bedplate and the large bedplate form a revolute pair. The small bedplate is driven to rotate by the tilting power assembly. The cutting assembly includes a circular saw motor and a circular saw blade. The circular saw motor is fixed on the small bedplate, and the circular saw blade is fixed on the output shaft.
The pressure forming device comprises a deformation workbench, a workbench guide rail, a workbench driving assembly and a pipe bending forming assembly arranged on the deformation workbench. The workbench guide rail is fixed on the base; the deformation workbench is connected to the workbench guide rail in a sliding way; the sliding direction of the deformation workbench is parallel to the conveying direction of the metal pipe material. The deforming table is driven by a table driving assembly.
The pipe bending and forming assembly comprises n roller extrusion units; n is more than or equal to 3; the roller extrusion units are sequentially arranged along the conveying direction of the deformation workbench. In the working process, any two adjacent roller extrusion units are respectively positioned at the opposite sides of the metal pipe material.
The roller extrusion unit comprises a roller wheel, a roller support, a roller fixing seat, a roller moving block and an extrusion driving assembly. The rolling moving block is connected to the deformation workbench in a sliding manner and is driven to slide by the extrusion driving assembly. The rolling support is fixed on the rolling moving block and is rotationally connected with a rolling wheel; the roller is driven to rotate by a roller motor. In the working process, the rolling wheel can prop against the side part of the metal pipe material under the driving of the extrusion driving assembly.
After being extruded by each rolling wheel, the pipe material forms a bending shape with the axis extending along the channel between the rolling wheels; and the trend of the roller wheels at two sides of the pipe material is changed by adjusting the end positions of the roller wheels in the extrusion process, so that the pipe material with different bending forms is obtained.
Preferably, the bending form of the tube material comprises a wave shape and a circular arc shape. When the wave-shaped pipe material is required to be formed on the pipe material, all the roller pressing wheels extrude the pipe material, and the pushing-out quantity of the roller pressing wheels on the same side of the pipe material is kept consistent; so that the projected distance of the two roller wheel axes located on opposite sides of the tube on a plane perpendicular to the conveying direction of the tube is smaller than the diameter of the roller wheel.
When the circular arc shape is needed to be formed on the pipe, the rolling wheels on one side of the pipe squeeze the pipe, and the squeezing stroke of the rolling wheels close to the middle position among the rolling wheels on the side is larger than that of the rolling wheels close to the two sides.
Preferably, the length of the central connecting line of the roller wheels in the adjacent two roller wheel extrusion units along the pipe material conveying direction, which is projected on the pipe material conveying axis, is larger than the diameter of the roller wheels.
Preferably, the pipe section AB comprises a wave section; the tube section CD includes a circular arc section. The wave section and the arc section are formed by extruding the metal pipe material under the cooperation of each roller extrusion unit.
Preferably, the pipe conveying mechanisms are three; wherein the first pipe conveying mechanism is used for feeding; the second pipe conveying mechanism is used for clamping during pressure forming; and the third pipe conveying mechanism is used for blanking. The groove cutting device is positioned between the first pipe conveying mechanism and the second pipe conveying mechanism; the pressure forming device is positioned between the second pipe conveying mechanism and the third pipe conveying mechanism.
Preferably, the pipe forming device for pre-processing the seat framework further comprises a flexible clamping mechanism. The flexible clamping mechanism is arranged between the pressure forming device and the third pipe conveying mechanism and is used for clamping the pipe when the pipe is extruded. The flexible clamping mechanism comprises two symmetrical single-side clamping assemblies; the unilateral clamping assembly comprises a clamping wheel, a clamping shaft, a clamping bracket, a clamping spring, a clamping moving block, a clamping fixing seat and a clamping driving assembly. The clamping moving block is connected to the base in a sliding manner and is driven by the clamping driving assembly. The clamping bracket is fixed on the clamping moving block; two slide grooves which are arranged up and down are arranged on the clamping support; two ends of the clamping shaft extend into the two sliding grooves respectively; clamping springs are arranged in the two sliding grooves; the clamping spring is propped against the clamping shaft; in the working process, the clamping spring applies elastic force towards the metal pipe material to the clamping shaft; a clamping wheel is fixed on the clamping shaft; the clamping shaft is driven to rotate by a clamping motor.
Preferably, the clamping driving assembly comprises a clamping screw and a clamping motor. The clamping motor is arranged on the base; the clamping screw rod is supported on the base and driven to rotate by the clamping motor; the clamping moving block and the clamping screw rod form a screw pair.
Preferably, the pipe conveying mechanism comprises two symmetrical single-side conveying assemblies; the unilateral conveying assembly comprises a roller, a rotating motor, a rotating shaft, a roller bracket, a conveying moving block and a conveying width adjusting driving assembly. The conveying moving block is connected to the base in a sliding manner and is driven by the conveying width adjusting driving assembly. The roller support is fixed on the conveying moving block and is rotatably connected with a vertically arranged rotating shaft; the rotating shaft is fixed with a roller; the rotating shaft is driven to rotate by a rotating motor. In the working process, the pipe passes through the space between the two rollers.
Preferably, the conveying width adjusting driving assembly comprises a movable screw and a movable motor. The mobile motor is arranged on the base; the movable screw rod is supported on the base and driven to rotate by the movable motor; the conveying moving block and the moving screw rod form a screw pair.
Preferably, the lifting power assembly comprises a large platen screw and a large platen motor; the large platen screw is rotatably connected to the door frame. The large platen screw and the large platen form a screw pair. The large platen screw is driven to rotate by a large platen motor.
The inclined power component comprises a worm, a worm wheel, a box body, a worm wheel shaft, a worm motor and a worm wheel bearing; the box body is fixed on a large bedplate (1-10); two ends of the worm wheel shaft are rotatably connected in the box body through worm wheel bearings; the worm wheel is fixed on the worm wheel shaft; the worm is rotatably connected in the box body and meshed with the worm wheel. The small bedplate which is horizontally arranged is fixed at the bottom end of the worm wheel shaft.
Preferably, the extrusion driving assembly comprises a rolling motor and a rolling screw. The rolling motor is arranged on the deformation workbench; the rolling screw rod is supported on the deformation workbench and is driven to rotate by the rolling motor; the rolling moving block and the rolling screw rod form a screw pair.
Preferably, the workbench driving assembly comprises a workbench motor, a workbench screw rod and a workbench nut. The workbench screw rod is rotatably connected to the base. The workbench nut is fixed at the bottom of the deformation workbench and forms a screw pair with the workbench screw rod. The workbench screw rod is driven to rotate by a workbench motor.
The molding method of the pipe molding equipment for the pre-processing of the seat framework comprises the following steps:
step one, linear metal pipe materials are conveyed to a groove cutting device by a first pipe material conveying mechanism.
Step two, the small bedplate is driven to rotate by the inclined power assembly, so that the cutting assembly on the small bedplate rotates, and the sawing angle of the groove cutting device is adjusted.
And step three, the circular saw motor drives the circular saw blade to rotate, and main movement is provided for sawing the groove. The lifting power assembly drives the cutting assembly to move, and an inclined plane is cut at the head end of the pipe material.
And fourthly, continuously conveying the metal pipe by the first pipe conveying mechanism, so that the metal pipe passes through the second pipe conveying mechanism until the metal pipe reaches a position requiring pressure forming.
And fifthly, according to the shape of the pipe material which is required to be achieved, the rolling wheels in the rolling wheel extrusion units respectively extrude the pipe material to the target position, so that the metal pipe material achieves the required shape.
And step six, continuously conveying the metal pipe material, and executing the step five at each position needing extrusion molding until all the positions needing molding on the metal pipe material reach the target shape.
Step seven, continuously conveying the metal pipe material, and when the tail end of the metal pipe material reaches the groove cutting device; the groove cutting device cuts a groove at the tail end of the metal pipe material.
The invention has the beneficial effects that:
1. according to the invention, the wavy section and the circular arc section can be automatically extruded on the linear pipe material, the grooves are automatically cut at the two ends of the metal pipe material, the grooves provide space required by welding after bending operation, and the automation degree of seat frame production is improved.
2. According to the invention, the rolling wheels are sequentially and alternately arranged on the two sides of the pipe material, and various pipe material shapes can be obtained by controlling the pushing-out degree of each rolling wheel, so that the pipe material forming work of a plurality of different positions of the seat frame is finished by one forming device, and the production cost is greatly reduced.
3. According to the invention, the cutting assembly is driven to integrally rotate by the small platen, the cutting angle of the cutting assembly is adjusted, the technical problem of automation of the metal skeleton forming groove in the chair seat manufacturing process is solved, the long-term manual or semi-automatic operation is replaced by the full-automatic equipment, the labor intensity of operators is reduced, the manufacturing quality is improved, and the automatic intelligent production line is key equipment of an automatic intelligent production line for manufacturing the chair seat.
Drawings
FIG. 1 is a schematic illustration of the present invention processing a linear tubing into a tubing with a profiled section configuration.
Fig. 2 is a schematic view (top view) of the overall structure of the present invention.
FIG. 3 is a first schematic view of the tubing transport mechanism of the present invention (cross-sectional view taken along section A-A in FIG. 2).
Fig. 4 is a schematic view of a flexible gripping mechanism of the present invention (cross-sectional view taken along section B-B in fig. 2).
Fig. 5 is a first schematic view (cross-sectional view of section C-C in fig. 2) of the pressure forming apparatus of the present invention.
Fig. 6 is a first schematic view (step cross-sectional view of section D-D in fig. 2) of a groove cutting device according to the present invention.
Fig. 7 is a second schematic view (cross-sectional view of section E-E in fig. 2) of the groove cutting device of the present invention.
Fig. 8 is a second schematic view (cross-sectional view of section F-F in fig. 2) of the press forming apparatus of the present invention.
Fig. 9 is a second schematic view of the tubing transport mechanism of the present invention (cross-sectional view taken along section G-G in fig. 2).
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 2, a pipe forming device for pre-processing a seat framework is used for processing a wave section and a circular arc section on a linear metal pipe; the wave section and the arc section are arranged at intervals. Bending the metal pipe material with the wavy section and the circular arc section at each designated position to obtain a seat framework; in the seat framework, the arc section is used for being used as a decoration of the top of the seat backrest; the arc section is used for improving the structural strength of the seat back.
As shown in fig. 2, the pipe forming apparatus for pre-processing a seat frame comprises a base 1, and a pipe conveying mechanism 9, a groove cutting device 10, a pressure forming device 7 and a flexible clamping mechanism 3 which are arranged in sequence and are arranged on the base 1. Three pipe conveying mechanisms 9 are arranged; wherein first pipe material conveying mechanism mainly used material loading and the transport of handling in-process pipe material, second pipe material conveying mechanism mainly used centre gripping when pressure forming, third pipe material conveying mechanism mainly used unloading. The groove cutting device 10 is positioned between the first pipe conveying mechanism and the second pipe conveying mechanism; the pressure forming device 7 and the flexible gripping means 3 are located between the second and third tube conveying means.
As shown in fig. 2, 3 and 9, the tubing conveying mechanism 9 comprises two single-sided conveying assemblies that are symmetrical to each other; the single-side conveying assembly comprises a roller 9-5, a rotating motor 9-7, a rotating shaft 9-6, a roller bracket 9-4, a conveying moving block 9-3, a moving screw 9-2 and a moving motor 9-1. The mobile motor 9-1 is mounted on the base 1; the transport moving block 9-3 is slidably attached to the base 1 in the width direction of the base. The movable screw rod 9-2 is supported on the base 1 and driven to rotate by the movable motor 9-1; the conveying moving block 9-3 and the moving screw 9-2 form a screw pair. The roller bracket 9-4 is fixed on the conveying moving block 9-3 and is rotatably connected with a vertically arranged rotating shaft 9-6; the rotating shaft 9-6 is fixed with a roller 9-5; the rotation shaft 9-6 is rotated by the rotation motor 9-7.
The rollers 9-5 in the two single-sided transport assemblies are aligned in the Y-direction (perpendicular to the tubing transport direction). The distance between the two rollers 9-5 in the Y direction can be adjusted by the rotation of the rotating motors in the two single-side conveying assemblies so as to adapt to the diameter of the pipe 2. The two rollers 9-5 rotate in opposite directions, so that the pipe material 2 is driven to be conveyed. When the roller 9-5 does not rotate, the function of clamping the pipe material 2 is achieved.
As shown in fig. 2, 6 and 7, the bevel cutting apparatus 10 includes a gantry 10-12, a large platen 10-10, a lifting power assembly, a small platen 10-5, a tilting power assembly and a cutting assembly. The cutting floor 10-1 is fixed to the base 1. The door frame 10-12 is arranged on the cutting bottom plate 10-1; the large platen motor 10-13 is slidably connected to the gantry 10-12 in a vertical direction. The lifting power assembly comprises a large platen screw rod 10-2, a large platen motor 10-13 and a large platen guide rod 10-3; the large platen guide bar 10-3 is fixed to the gantry 10-12. The large platen screw 10-2 is rotatably coupled to the gantry 10-12. The large platen screw 10-2 and the large platen 10-10 form a screw pair. The large platen motor 10-13 is used for driving the large platen screw 10-2 to rotate and driving the large platen 10-10 to move up and down so as to realize cutting feeding and retracting.
The small bedplate 10-5 and the large bedplate 10-10 form a revolute pair with a common axis arranged vertically. The tilting power assembly comprises a worm 10-8, a worm wheel 10-9, a box 10-7, a worm wheel shaft 10-6, a worm motor and a worm wheel bearing 10-11; the box body 10-7 is fixed on the large bedplate 1-10; two ends of the worm wheel shaft 10-6 are rotatably connected in the box body 10-7 through worm wheel bearings 10-11; the worm wheel 10-9 is fixed on the worm wheel shaft 10-6; the worm 10-8 is rotatably connected in the box 10-7 and is meshed with the worm wheel 10-9. The small bedplate 10-5 which is horizontally arranged is fixed at the bottom end of the worm wheel shaft 10-6; the worm motor drives the worm and gear transmission mechanism to enable the worm wheel shaft 10-6 to rotate; the worm wheel shaft 10-6 rotates to drive the small bedplate 10-5 to rotate, so that the cutting assembly on the small bedplate 10-5 rotates, the purpose of angle adjustment is achieved, and the bevel cutting and flat cutting operation of various angles can be adapted.
The cutting assembly includes a circular saw motor 10-4 and a circular saw blade 10-14. The circular saw motor 10-4 is fixed on the bottom surface of the small bedplate 10-5, and the circular saw blade 10-14 is fixed on the output shaft; the circular saw motor 10-4 rotates the circular saw blade 10-14 to provide the main motion for sawing. The small bedplate 10-5 is driven to rotate by the inclined power assembly, so that the cutting assembly can cut the end part of the pipe material along any inclined angle, and an inclined notch is formed on the pipe material, thereby facilitating welding after subsequent bending operation.
As shown in fig. 2, 5 and 8, the press forming device 7 includes a deforming table 8, a table rail 5, a table driving assembly, and a tube bending assembly mounted on the deforming table 8. A table guide rail 5 arranged along the X direction is fixed on the base 1; the deformation workbench 8 is connected to the workbench guide rail 5 in a sliding manner; the table driving assembly includes a table motor 4, a table screw 6 and a table nut 11. The table screw 6 is rotatably connected to the base 1. The table nut 11 is fixed to the bottom of the deforming table 8, and forms a screw pair with the table screw 6. The table screw 6 is rotated by a table motor 4 fixed to the base 1 to drive the deforming table 8 to move linearly along the table guide 5.
The pipe bending and forming assembly comprises three roller extrusion units; the three roller extrusion units are distributed in an isosceles triangle; in the working process, the first roller extrusion unit and the third roller extrusion unit in the X direction are positioned on one side of the pipe material, and the second roller extrusion unit is positioned on the other side of the pipe material. The rolling wheels 7-7 in the three rolling wheel extrusion units apply thrust to different positions of the pipe material, so that the pipe material is bent and deformed to form a wavy or circular arc structure.
The roller extrusion unit comprises a roller wheel 7-7, a roller support 7-5, a roller shaft 7-6, a roller fixing seat 7-2, a roller moving block 7-4, a roller motor 7-1 and a roller screw rod 7-3. The rolling motor 7-1 is arranged on the deformation workbench 8; the rolling moving block 7-4 is slidably attached to the base 1 in the Y direction. The rolling screw rod 7-3 is supported on the deformation workbench 8 and is driven to rotate by the rolling motor 7-1; the rolling moving block 7-4 and the rolling screw rod 7-3 form a screw pair. The rolling support 7-5 is fixed on the rolling moving block 7-4 and is rotationally connected with a rolling shaft 7-6 which is vertically arranged; the rolling wheel 7-7 is fixed on the rolling shaft 7-6; the roll shaft 7-6 is driven to rotate by a roll motor 7-1. When the second pipe conveying mechanism and the flexible clamping mechanism respectively clamp the two ends of the pipe section to be formed; the pressure forming device performs pressure forming on the pipe section to be formed by three rolling wheels which move in two degrees of freedom of X and Y according to the formed shape.
As shown in fig. 2 and 4, the flexible clamping mechanism 3 comprises two single-side clamping assemblies which are symmetrical to each other; the unilateral clamping assembly comprises a clamping wheel 3-6, a clamping shaft 3-8, a clamping bracket 3-5, a clamping spring 3-7, a clamping moving block 3-4, a clamping fixing seat 3-1, a clamping screw rod 3-3 and a clamping motor 3-2. The clamping motor 3-2 is arranged on the base 1; the clamping moving block 3-4 is slidably connected to the base 1 in the width direction of the base. The clamping screw 3-3 is supported on the base 1 and driven to rotate by the clamping motor 3-2; the clamping moving block 3-4 and the clamping screw rod 3-3 form a screw pair. The clamping bracket 3-5 is fixed on the clamping moving block 3-4; two sliding grooves which are arranged up and down along the Y direction are arranged on the clamping bracket 3-5; two ends of the clamping shaft 3-8 extend into the two sliding grooves respectively; clamping springs 3-7 are arranged in the two sliding grooves; the clamping spring 3-7 is propped against the clamping shaft 3-8; in the working process, the clamping spring 3-7 applies elastic force towards the pipe material to the clamping shaft 3-8; the clamping shaft 3-8 is fixedly provided with a clamping wheel 3-6; the clamp shaft 3-8 is driven to rotate by the clamp motor 3-2. When the flexible clamping mechanism 3 is used for pressure forming, the end part of the pipe material 2 is clamped, and the clamping springs 3-7 are used for enabling the clamping to be flexible.
The molding method of the pipe molding equipment for the pre-processing of the seat framework comprises the following steps:
step one, linear metal pipe materials 2 are conveyed to a groove cutting device by a first pipe material conveying mechanism.
And secondly, the worm wheel shaft 10-6 rotates to drive the small bedplate 10-5 to rotate, so that a cutting assembly on the small bedplate 10-5 rotates around a vertical axis, and the sawing angle of the groove cutting device 10 is adjusted to adapt to the required groove angle.
Step three, the circular saw motor 10-4 drives the circular saw blade 10-14 to rotate, and main movement is provided for sawing grooves. The lifting power assembly drives the cutting assembly to perform lifting movement, and an inclined plane is cut at the end part of the pipe material.
And fourthly, continuously conveying the pipe material by the first pipe material conveying mechanism, so that the pipe material passes through the second pipe material conveying mechanism until the pipe material reaches a position requiring pressure forming.
And fifthly, clamping one end of the formed pipe section by the second pipe conveying mechanism, and clamping the other end of the formed pipe section by the flexible clamping mechanism 3.
And step six, according to the shape required to be formed, controlling the roller wheels 7-7 in the three roller wheel extrusion units to carry out pressure forming on the formed pipe material section, so that the formed pipe material section forms a wave shape or a large circle shape.
And step seven, repeating the steps four to six for each section of pipe section required to be formed on the pipe material, and respectively processing a wave section and a circular arc section at the positions corresponding to the pipe section AB and the pipe section CD on the metal pipe material.
And step eight, cutting the groove at the tail end of the metal pipe according to the methods in the step two and the step three.
And step nine, conveying the formed and groove-cut pipe materials by a third pipe material conveying mechanism, and finishing blanking.
Claims (8)
1. A pipe material former that is used for seat skeleton to preform, its characterized in that: comprises a base (1), a pipe conveying mechanism (9), a groove cutting device (10) and a pressure forming device (7) which are arranged on the base (1); the pipe conveying mechanism (9) is used for conveying pipe; the groove cutting device (10) is used for cutting a groove at the end part of the metal pipe material;
the groove cutting device (10) comprises a portal frame (10-12), a large bedplate (10-10), a lifting power component, a small bedplate (10-5), an inclined power component and a cutting component; the door frames (10-12) are arranged on the base (1); the large bedplate (10-10) is connected to the portal (10-12) in a sliding manner and is driven by the lifting power assembly; the small bedplate (10-5) and the large bedplate (10-10) form a revolute pair; the small bedplate (10-5) is driven to rotate by the tilting power assembly; the cutting assembly comprises a circular saw motor (10-4) and a circular saw blade (10-14); the circular saw motor (10-4) is fixed on the small bedplate (10-5), and the circular saw blade (10-14) is fixed on the output shaft;
the pressure forming device (7) comprises a deformation workbench (8), a workbench guide rail (5), a workbench driving assembly and a pipe bending forming assembly arranged on the deformation workbench (8); the workbench guide rail (5) is fixed on the base (1); the deformation workbench (8) is connected to the workbench guide rail (5) in a sliding way; the sliding direction of the deformation workbench (8) is parallel to the conveying direction of the metal pipe material; the deformation workbench (8) is driven by a workbench driving assembly;
the pipe bending and forming assembly comprises n roller extrusion units; n is more than or equal to 3; the roller extrusion units are sequentially arranged along the conveying direction of the deformation workbench (8); in the working process, any two adjacent roller extrusion units are respectively positioned at the opposite sides of the metal pipe material;
the roller extrusion unit comprises a roller wheel (7-7), a roller bracket (7-5), a roller fixing seat (7-2), a roller moving block (7-4) and an extrusion driving assembly; the rolling moving block (7-4) is connected to the deformation workbench (8) in a sliding manner and is driven by the extrusion driving assembly to slide; the rolling support (7-5) is fixed on the rolling moving block (7-4) and is rotationally connected with a rolling wheel (7-7); the rolling wheel (7-7) is driven to rotate by a rolling motor (7-1); in the working process, the rolling wheel (7-7) can prop against the side part of the metal pipe material under the drive of the extrusion driving component;
after being extruded by each roller wheel (7-7), the pipe material forms a bending shape with the axis extending along the channel between each roller wheel (7-7); the trend of the rolling wheels (7-7) at the two sides of the pipe material is changed by adjusting the end positions of the rolling wheels (7-7) in the extrusion process, so that the pipe material with different bending forms is obtained;
the bending form of the pipe material comprises wave shape and circular arc shape; when the wave-shaped pipe material is required to be formed on the pipe material, all the rolling wheels (7-7) squeeze the pipe material, and the pushing quantity of the rolling wheels (7-7) on the same side of the pipe material is kept consistent; so that the projection distance of the axes of the two rolling wheels (7-7) positioned on the opposite sides of the pipe material on the plane perpendicular to the conveying direction of the pipe material is smaller than the diameter of the rolling wheels (7-7);
when the circular arc shape is required to be formed on the pipe, the rolling wheels (7-7) on one side of the pipe squeeze the pipe, and in each rolling wheel (7-7) on the side, the squeezing stroke of the rolling wheel (7-7) close to the middle position is larger than that of the rolling wheels (7-7) close to the two sides.
2. A tubing forming apparatus for pre-processing a seat frame according to claim 1, wherein: along the conveying direction of the pipe, the length of the central connecting line of the rolling wheels (7-7) in the two adjacent rolling wheel extrusion units projected on the conveying axis of the pipe is larger than the diameter of the rolling wheels (7-7).
3. A tubing forming apparatus for pre-processing a seat frame according to claim 1, wherein: the pipe conveying mechanism (9) is provided with three parts; wherein the first pipe conveying mechanism is used for feeding; the second pipe conveying mechanism is used for clamping during pressure forming; the third pipe conveying mechanism is used for blanking; the groove cutting device (10) is positioned between the first pipe conveying mechanism and the second pipe conveying mechanism; the pressure forming device (7) is positioned between the second pipe conveying mechanism and the third pipe conveying mechanism.
4. A tubing forming apparatus for pre-processing a seat frame according to claim 3, wherein: also comprises a flexible clamping mechanism (3); the flexible clamping mechanism (3) is arranged between the pressure forming device (7) and the third pipe conveying mechanism and is used for clamping the pipe when the pipe is extruded; the flexible clamping mechanism (3) comprises two symmetrical single-side clamping assemblies; the single-side clamping assembly comprises a clamping wheel (3-6), a clamping shaft (3-8), a clamping bracket (3-5), a clamping spring (3-7), a clamping moving block (3-4), a clamping fixing seat (3-1) and a clamping driving assembly; the clamping moving block (3-4) is connected to the base (1) in a sliding manner and is driven by the clamping driving assembly; the clamping bracket (3-5) is fixed on the clamping moving block (3-4); two slide grooves which are arranged up and down are arranged on the clamping bracket (3-5); two ends of the clamping shaft (3-8) respectively extend into the two sliding grooves; clamping springs (3-7) are arranged in the two sliding grooves; the clamping spring (3-7) is propped against the clamping shaft (3-8); in the working process, the clamping spring (3-7) applies elastic force towards the metal pipe material to the clamping shaft (3-8); the clamping shaft (3-8) is fixedly provided with a clamping wheel (3-6); the clamping shaft (3-8) is driven to rotate by the clamping motor (3-2).
5. A tubing forming apparatus for pre-processing a seat frame according to claim 4, wherein: the pipe conveying mechanism (9) comprises two symmetrical single-side conveying assemblies; the single-side conveying assembly comprises a roller (9-5), a rotating motor (9-7), a rotating shaft (9-6), a roller bracket (9-4), a conveying moving block (9-3) and a conveying width adjusting driving assembly; the conveying moving block (9-3) is connected to the base (1) in a sliding manner and is driven by the conveying width adjusting driving assembly; the roller bracket (9-4) is fixed on the conveying moving block (9-3) and is rotationally connected with a vertically arranged rotating shaft (9-6); the rotating shaft (9-6) is fixed with a roller (9-5); the rotating shaft (9-6) is driven to rotate by a rotating motor (9-7); in the working process, the pipe material passes through the space between the two rollers (9-5).
6. A tubing forming apparatus for pre-processing a seat frame according to claim 5, wherein: the conveying width adjusting driving assembly comprises a movable screw rod (9-2) and a movable motor (9-1); the mobile motor (9-1) is arranged on the base (1); the movable screw rod (9-2) is supported on the base (1) and driven to rotate by the movable motor (9-1); the conveying moving block (9-3) and the moving screw rod (9-2) form a screw pair;
the clamping driving assembly comprises a clamping screw rod (3-3) and a clamping motor (3-2); the clamping motor (3-2) is arranged on the base (1); the clamping screw rod (3-3) is supported on the base (1) and driven to rotate by the clamping motor (3-2); the clamping moving block (3-4) and the clamping screw rod (3-3) form a screw pair;
the workbench driving assembly comprises a workbench motor (4), a workbench screw rod (6) and a workbench nut (11); the workbench screw rod (6) is rotationally connected to the base (1); the workbench nut (11) is fixed at the bottom of the deformation workbench (8) and forms a screw pair with the workbench screw rod (6); the workbench screw rod (6) is driven to rotate by the workbench motor (4);
the extrusion driving assembly comprises a rolling motor (7-1) and a rolling screw rod (7-3); the rolling motor (7-1) is arranged on the deformation workbench (8); the rolling screw rod (7-3) is supported on the deformation workbench (8) and is driven to rotate by the rolling motor (7-1); the rolling moving block (7-4) and the rolling screw rod (7-3) form a screw pair.
7. A tubing forming apparatus for pre-processing a seat frame according to claim 1, wherein: the lifting power assembly comprises a large bedplate lead screw (10-2) and a large bedplate motor (10-13); the large platen screw (10-2) is rotationally connected to the portal (10-12); the large platen screw rod (10-2) and the large platen (10-10) form a screw pair; the large platen screw (10-2) is driven to rotate by a large platen motor (10-13);
the tilting power assembly comprises a worm (10-8), a worm wheel (10-9), a box body (10-7), a worm wheel shaft (10-6), a worm motor and a worm wheel bearing (10-11); the box body (10-7) is fixed on the large bedplate (1-10); two ends of the worm wheel shaft (10-6) are rotationally connected in the box body (10-7) through worm wheel bearings (10-11); the worm wheel (10-9) is fixed on the worm wheel shaft (10-6); the worm (10-8) is rotationally connected in the box body (10-7) and meshed with the worm wheel (10-9); the small bedplate (10-5) which is horizontally arranged is fixed at the bottom end of the worm wheel shaft (10-6).
8. A molding method of a tube molding apparatus for seat frame pre-processing as claimed in claim 4, wherein: the method comprises the following steps:
step one, conveying linear metal pipe materials (2) to a groove cutting device by a first pipe material conveying mechanism;
step two, the small bedplate (10-5) is driven to rotate by the inclined power component, so that the cutting component on the small bedplate (10-5) rotates, and the sawing angle of the groove cutting device (10) is adjusted;
step three, a circular saw motor (10-4) drives a circular saw blade (10-14) to rotate, so as to provide main movement for sawing grooves; the lifting power assembly drives the cutting assembly to move, and an inclined plane is cut at the head end of the pipe material;
step four, the first pipe conveying mechanism continues to convey the metal pipe, so that the metal pipe passes through the second pipe conveying mechanism until the metal pipe reaches a position requiring pressure forming;
step five, according to the shape of the pipe material which is required to be achieved, rolling wheels (7-7) in each rolling wheel extrusion unit respectively extrude the pipe material to a target position, so that the metal pipe material achieves the required shape;
step six, continuously conveying the metal pipe material, and executing the step five at each position needing extrusion molding until all the positions needing molding on the metal pipe material reach the target shape;
step seven, continuously conveying the metal pipe material, and when the tail end of the metal pipe material reaches the groove cutting device (10); the groove cutting device (10) cuts a groove at the tail end of the metal pipe material.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210741112.7A CN114986183B (en) | 2022-06-27 | 2022-06-27 | Pipe forming equipment for preprocessing seat framework and working method of pipe forming equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210741112.7A CN114986183B (en) | 2022-06-27 | 2022-06-27 | Pipe forming equipment for preprocessing seat framework and working method of pipe forming equipment |
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| CN114986183A CN114986183A (en) | 2022-09-02 |
| CN114986183B true CN114986183B (en) | 2023-07-11 |
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| CN113510295A (en) * | 2021-07-30 | 2021-10-19 | 安徽信息工程学院 | Cutting device is used in processing of car seat pipe fitting |
| CN216730564U (en) * | 2021-11-24 | 2022-06-14 | 刘原君 | Rhombus steel production system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106734415A (en) * | 2017-02-06 | 2017-05-31 | 吉林大学 | Metal composite slab three-dimension curved surface progressive forming device |
| CN209935667U (en) * | 2019-05-27 | 2020-01-14 | 烟台卡斯凯特金属制品股份有限公司 | Box roll-in forming and bending production line |
| CN112238348A (en) * | 2019-12-17 | 2021-01-19 | 厉风燕 | Pipe bending equipment integrating cutting, polishing and forming |
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| CN114986183A (en) | 2022-09-02 |
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