Semi-automatic feeding machine assisting laser pipe cutting feeding

Abstract

A semi-automatic feeding machine assisting laser pipe cutting feeding comprises a conveying chain device and a jacking mechanism, the conveying chain device is composed of a plurality of conveying chain units which are perpendicular to the conveying direction of the conveying chain device and arranged side by side, each conveying chain unit comprises a conveying chain driven by a first driving mechanism, and slope positioning blocks are arranged on the conveying chains; according to the technical scheme, the conveying chain and the jacking structure feed pipes to be machined into the laser cutting machine, the pipes need to be manually placed on the positioning blocks of the conveying chain in the feeding process, then the pipes are automatically fed into the pipe cutting machine through the jacking mechanism, and the pipes are automatically fed into the pipe cutting machine through the jacking mechanism. The conveying chain adopts the scheme that a brand-new segmented slope positioning block is matched with a chain of a bent plate accessory, so that the problem of pipe positioning is solved, and the problem of matching of the positioning block and the chain is also solved. The conveying chain and the jacking mechanism are in series connection modular design, and feeding of pipes of various lengths can be completed only by adjusting the number of modules.

Description

Technical Field

[0001] The invention relates to the technical field of laser welding machines, and in particular to a semi-automatic feeding machine for assisting laser tube cutting and feeding. Background Art

[0002] With the market demand, there is an urgent need to improve the economy and work efficiency of laser tube cutting machines. The feeder is an important factor affecting these two indicators in the work of the tube cutting machine. Commonly used feeders are manual, automatic, and semi-automatic. Among them, the manual feeder requires manual intervention throughout the process, with low work efficiency and low cost; the fully automatic feeder has less manual intervention, one person can be on duty for multiple devices, and the cost rises sharply; the semi-automatic feeder is a compromise solution with less manual intervention at the lowest possible cost. The existing semi-automatic feeder has the problem of incompatibility between pipes and transmission chains, and it is difficult to position the pipes on the transmission chain. In addition, the feeder cannot adapt well to the feeding function of pipes of different sizes and lengths, and the pipe positioning of the feeder must be accurate, otherwise it cannot be docked with the tube cutting machine; it is also necessary to continuously support the height of the pipe during cutting to prevent the pipe from bending and sagging due to gravity, affecting the accuracy of the cutting process. Summary of the invention

[0003] In order to solve the technical defects in the prior art, the present invention provides a semi-automatic feeding machine for assisting laser tube cutting and feeding.

[0004] The technical solution adopted by the present invention is: a semi-automatic loading machine for auxiliary laser tube cutting and loading, including a conveyor chain device and a lifting mechanism, the lifting mechanism is located at the end of the conveyor chain device to feed the tube to be processed transmitted by the conveyor chain device into the laser cutting machine, the conveyor chain device is composed of a plurality of conveyor chain units which are perpendicular to the conveying direction of the conveyor chain device and arranged in parallel, the conveyor chain unit includes a conveying chain driven by a first driving mechanism, a plurality of slope positioning blocks are provided on the conveying chain, and a bent plate attachment is provided at the end of each of the slope positioning blocks, the slope positioning block and the bent plate attachment form a tube positioning structure to realize the positioning and coordination between the tube on the conveying chain and the conveying chain.

[0005] The slope positioning block is composed of several independent right-angled trapezoidal blocks, the hypotenuse of the right-angled trapezoidal blocks is set upward, the heights of several right-angled trapezoidal blocks decrease successively along the transmission direction to form a slope structure, and the bent plate attachment is set at the end of the right-angled trapezoidal block with the lowest height to form a hook-shaped limiting structure.

[0006] Each of the right-angle trapezoidal blocks and bent plate attachments are independently installed between the conveyor chains and fixed by fasteners.

[0007] The first driving mechanism is provided with a power chain and a gear set, and the first driving mechanism is transmission-coordinated with the transmission chain through the power chain and the gear set.

[0008] Several of the conveying chain units share the same first driving mechanism, a power shaft is provided between the gear sets of every two adjacent conveying chain units, the power shaft cooperates with the power chain transmission through the gear set, and several adjacent power shafts are connected in series and share the same first driving mechanism.

[0009] The lifting mechanism is composed of a number of lifting units which are arranged in parallel and perpendicular to the conveying direction of the conveyor chain device. The lifting unit includes a clamp and a support roller which continuously supports the height of the pipe during cutting to prevent the pipe from bending and sagging due to gravity and affecting the accuracy of the cutting process. The lifting mechanism also includes a centering clamp lifting cylinder which drives the clamp to lift to a specified height for cutting by the pipe cutting machine and a height positioning component which controls the height position of the support roller.

[0010] The height positioning component includes a horizontal support lifting cylinder that drives the support roller to lift vertically. The horizontal support lifting cylinder drives the support roller bracket to drive the support roller to move longitudinally. The support roller bracket is also connected to a height adjustment roller. The height adjustment roller and the bracket move synchronously. The height positioning component also includes a height adjustment angle plate driven by a second driving mechanism. The height adjustment angle plate and the height adjustment roller are always tightly fitted together under the drive of the horizontal support lifting cylinder. The height adjustment angle plate and the height adjustment roller are limited by the cooperation to control the height position of the support roller.

[0011] The second driving mechanism is connected to a ball screw, and the ball screw is connected to a mounting plate. A guide rail is provided at the bottom of the mounting plate. The height adjustment angle plate is arranged on the mounting plate. The ball screw drives the mounting plate to move horizontally left and right on the guide rail through the second driving mechanism, thereby controlling the contact position between the height adjustment angle plate and the height adjustment roller to achieve the height position of the control support roller.

[0012] Several of the jacking units share the same second driving mechanism, and the mounting plates of every two adjacent jacking units are connected in series through a power transmission rod so that the second driving mechanism drives the mounting plates and the height adjustment angle plates on the mounting plates on all the jacking units to move horizontally left and right synchronously on the guide rail.

[0013] The clamp-type clamp includes a clamping cylinder, which drives the first rack to move horizontally through a connecting plate. The first rack is also meshed with a gear, and the gear is meshed with a second rack. The horizontal movement of the first rack drives the second rack to move horizontally in the opposite direction synchronously through the meshing of the gears. The first rack and the second rack are respectively connected to left and right vertical centering rollers. The first rack and the second rack move horizontally in the opposite direction synchronously to realize the clamping action of the left and right vertical centering rollers.

[0014] The beneficial effects of the present invention are as follows: the present invention provides a semi-automatic loading machine for assisting laser tube cutting and loading, comprising a conveyor chain device and a lifting mechanism, the lifting mechanism being located at the end of the conveyor chain device to feed the tube to be processed transmitted by the conveyor chain device into the laser cutting machine, the conveyor chain device is composed of a plurality of conveyor chain units which are perpendicular to the conveying direction of the conveyor chain device and arranged in parallel, the conveyor chain unit comprises a conveying chain driven by a first driving mechanism, a plurality of slope positioning blocks are arranged on the conveying chain, a bent plate attachment is arranged at the end of each slope positioning block, the slope positioning block and the bent plate attachment form a tube positioning structure to realize the positioning and coordination between the tube on the conveying chain and the conveying chain, the present invention adopts a scheme of adding a conveyor chain to a lifting structure to feed the tube to be processed into the laser cutting machine, when loading, the tube needs to be manually placed on the positioning block of the conveyor chain, and then automatically fed into the tube cutting machine through the lifting mechanism, the conveyor chain adopts a brand-new scheme of matching the chain of the segmented slope positioning block and the bent plate attachment, which not only solves the tube positioning problem but also solves the coordination problem of the positioning block and the chain. The conveyor chain and lifting mechanism are designed to be modular and can be connected in series. Pipes of various lengths can be loaded by simply adjusting the number of modules. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention.

[0016] Figure 2 It is a schematic diagram of the side structure of the present invention.

[0017] Figure 3 It is a schematic diagram of the side structure of the present invention.

[0018] Figure 4 It is a schematic diagram of the structure of the present invention.

[0019] Figure 5 It is a schematic diagram of the structure of the conveyor chain device of the present invention.

[0020] Figure 6 It is a schematic diagram of the structure of the conveyor chain unit of the present invention.

[0021] Figure 7 It is a schematic diagram of the structure of the jacking mechanism of the present invention.

[0022] Figure 8 It is a schematic diagram of the structure of the lifting unit of the present invention.

[0023] Fig. 9 It is a schematic diagram of the structure of the lifting unit of the present invention.

[0024] Fig.10 It is a schematic diagram of the structure of the clamp-shaped clamp of the present invention.

[0025] Fig.11 It is a schematic diagram of the structure of the clamp-shaped clamp of the present invention.

[0026] Among them, 1-conveying chain unit, 2-first driving mechanism, 3-lifting unit, 11-transmission chain, 12-slope positioning block, 13-bending plate attachment, 14-power shaft, 21-power chain, 22-gear set, 31-clamp, 32-support roller, 33-centering clamp lifting cylinder, 34-horizontal support lifting cylinder, 35-height adjustment roller, 36-second driving mechanism, 37-height adjustment angle plate, 38-ball screw, 39-mounting plate, 40-guide rail, 41-power transmission rod, 311-clamping cylinder, 312-first rack, 313-gear, 314-second rack, 315-left and right vertical centering clamp rollers. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] A semi-automatic feeding machine for assisting laser tube cutting and feeding comprises a conveyor chain device and a lifting mechanism. The lifting mechanism is located at the end of the conveyor chain device to feed the tube to be processed transmitted by the conveyor chain device into the laser cutting machine. The conveyor chain device is composed of a plurality of conveyor chain units 1 which are perpendicular to the conveying direction of the conveyor chain device and arranged in parallel. The conveyor chain unit 1 comprises a conveyor chain 11 driven by a first driving mechanism 2. The conveyor chain 11 is provided with a plurality of slope positioning blocks 12. The end of each slope positioning block 12 is provided with a bent plate attachment 13. The slope positioning blocks 12 and the bent plate attachment 13 form a tube positioning structure to realize the positioning and matching between the tube on the conveyor chain 11 and the conveyor chain 11. The slope positioning block 12 is composed of a plurality of independent right-angled trapezoidal blocks. The hypotenuse of the right-angled trapezoidal blocks is arranged upward. The heights of the plurality of right-angled trapezoidal blocks decrease in sequence along the conveying direction to form a slope structure. The bent plate attachment 13 is arranged at the end of the right-angled trapezoidal block with the lowest height to form a hook-shaped limiting structure. Each of the right-angled trapezoidal blocks and the bent plate attachment 13 is independently installed with the conveying chain 11 and fixed by fasteners. The conveying chain unit of the present invention adopts a new scheme of matching the segmented slope positioning block and the chain with the bent plate attachment, which solves both the pipe positioning problem and the positioning block and chain matching problem. The first driving mechanism 2 is provided with a power chain 21 and a gear set 22, and the first driving mechanism 2 is matched with the conveying chain 11 through the power chain 21 and the gear set 22.

[0029] Several of the conveyor chain units 1 share the same first driving mechanism 2, and a power shaft 14 is provided between the gear sets 22 of every two adjacent conveyor chain units 1. The power shaft 14 is transmitted and coordinated with the power chain 21 through the gear set 22. Several adjacent power shafts 14 are connected in series and share the same first driving mechanism 2. The entire loading machine is composed of several conveyor chain units, which are connected in series through the power shaft and share a servo motor, so as to improve the economy and facilitate series connection to adapt to the loading of pipes of various lengths.

[0030] The lifting mechanism is composed of a plurality of lifting units 3 which are arranged in parallel and perpendicular to the conveying direction of the conveyor chain device. The lifting unit 3 includes a clamp 31 and a support roller 32 which continuously supports the height of the pipe during cutting to prevent the pipe from bending and sagging due to gravity and affecting the accuracy of the cutting process. The lifting mechanism also includes a centering clamp lifting cylinder 33 which drives the clamp 31 to lift it to a specified height for cutting by the pipe cutting machine and a height positioning component which controls the height position of the support roller 32.

[0031] The height positioning component includes a horizontal support lifting cylinder 34 that drives the support roller 32 to lift vertically. The horizontal support lifting cylinder 34 drives the bracket of the support roller 32 to drive the support roller 32 to move longitudinally. The bracket of the support roller 32 is also connected to a height adjustment roller 35. The height adjustment roller 35 moves synchronously with the bracket. The height positioning component also includes a height adjustment angle plate 37 driven by a second driving mechanism 36. The height adjustment angle plate 37 and the height adjustment roller 35 are always tightly fitted together under the drive of the horizontal support lifting cylinder 34. The height adjustment angle plate 37 and the height adjustment roller 35 are limited in cooperation to control the height position of the support roller 32.

[0032] The second driving mechanism 36 is connected to a ball screw 38, and a mounting plate 39 is connected to the ball screw 38. A guide rail 40 is provided at the bottom of the mounting plate 39. The height adjustment angle plate 37 is arranged on the mounting plate 39. The ball screw 38 drives the mounting plate 39 to move horizontally left and right on the guide rail 40 through the second driving mechanism 36, thereby controlling the contact position between the height adjustment angle plate 37 and the height adjustment roller 35 to achieve the height position of the control support roller 32.

[0033] Several of the jacking units 3 share the same second driving mechanism 36, and the mounting plates 39 of every two adjacent jacking units 3 are connected in series through a power transmission rod 41, so that the second driving mechanism 36 drives the mounting plates 39 on all the jacking units 3 and the height adjustment angle plates 37 on the mounting plates 39 to move horizontally left and right on the guide rail 40 synchronously, thereby improving economy and facilitating series connection to adapt to the loading of pipes of various lengths.

[0034] The clamp-type clamp 31 includes a clamping cylinder 311, and the clamping cylinder 311 drives the first rack 312 to move horizontally through a connecting plate. The first rack 312 is also meshed with a gear 313, and the gear 313 is meshed with a second rack 314. The horizontal movement of the first rack 312 drives the second rack 314 to move horizontally in the opposite direction synchronously through the meshing of the gear 313. The first rack 312 and the second rack 314 are respectively connected to left and right vertical centering rollers 315. The first rack 312 and the second rack 314 move horizontally in the opposite direction synchronously to realize the clamping action of the left and right vertical centering rollers 315.

[0035] The first driving mechanism 2 and the second driving mechanism 36 are both servo motors.

[0036] The scheme for realizing the loading of the feeder of the present invention is as follows: 1. manually placing the pipe to be processed onto the pipe positioning block on the belt attachment chain; 2. the belt attachment chain is driven to move by the servo motor, and then the pipe is sent to the vertical centering clamp capture range through the pipe positioning block on the belt conveyor chain; 3. the support roller is lifted to the specified height, thereby completing the height positioning of the pipe; 4. the left and right vertical center clamp rollers are pushed by the clamping cylinder to clamp the pipe to complete the horizontal position positioning of the pipe; 5. after the above two positionings send the pipe to the controllable specified position, it is handed over to the pipe cutting machine for cutting. At this time, the positioning of the positioned pipe must be accurate, otherwise it cannot be docked with the pipe cutting machine; during cutting, the water support roller will continue to support the height of the pipe to prevent the pipe from bending and sagging due to gravity, affecting the accuracy of the cutting process; Technical personnel should note that although the present invention has been described according to the above specific implementation methods, the inventive concept of the present invention is not limited to this invention, and any modification using the inventive concept will be included in the scope of protection of this patent.

[0037] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A semi-automatic feeding machine for assisting laser tube cutting, comprising a conveyor chain device and a lifting mechanism, wherein the lifting mechanism is located at the end of the conveyor chain device to feed the tube to be processed transmitted by the conveyor chain device into the laser cutting machine, characterized in that: The conveyor chain device is composed of a plurality of conveyor chain units (1) which are arranged in parallel and perpendicular to the conveying direction of the conveyor chain device. The conveyor chain unit (1) includes a conveyor chain (11) driven by a first driving mechanism (2). The conveyor chain (11) is provided with a plurality of slope positioning blocks (12). A bent plate attachment (13) is provided at the end of each slope positioning block (12). The slope positioning blocks (12) and the bent plate attachment (13) form a pipe positioning structure to achieve positioning and matching between the pipe on the conveyor chain (11) and the conveyor chain (11).

2. A semi-automatic feeding machine for assisting laser tube cutting and feeding according to claim 1, characterized in that: The slope positioning block (12) is composed of a plurality of independent right-angled trapezoidal blocks, the hypotenuse of the right-angled trapezoidal blocks is arranged upward, the heights of the plurality of right-angled trapezoidal blocks decrease in sequence along the transmission direction to form a slope structure, and the bent plate attachment (13) is arranged at the end of the right-angled trapezoidal block with the lowest height to form a hook-shaped limiting structure.

3. A semi-automatic feeding machine for assisting laser tube cutting and feeding according to claim 2, characterized in that: Each of the right-angle trapezoidal blocks and the bent plate attachment (13) is independently installed on the conveying chain (11) and fixed by fasteners.

4. The semi-automatic feeding machine for assisting laser tube cutting and feeding according to claim 1 is characterized in that: The first driving mechanism (2) is provided with a power chain (21) and a gear set (22), and the first driving mechanism (2) is in transmission cooperation with the transmission chain (11) through the power chain (21) and the gear set (22).

5. A semi-automatic feeding machine for assisting laser tube cutting and feeding according to claim 4, characterized in that: A plurality of the conveyor chain units (1) share a same first driving mechanism (2), a power shaft (14) is provided between the gear sets (22) of every two adjacent conveyor chain units (1), the power shaft (14) is coupled to the power chain (21) through the gear set (22), and a plurality of adjacent power shafts (14) are connected in series and share a same first driving mechanism (2).

6. The semi-automatic feeding machine for assisting laser tube cutting and feeding according to claim 1, characterized in that: The lifting mechanism is composed of a plurality of lifting units (3) which are arranged in parallel and perpendicular to the conveying direction of the conveyor chain device. The lifting unit (3) includes a clamp-shaped clamp (31) and a support roller (32) which continuously supports the height of the pipe during cutting to prevent the pipe from bending and sagging due to gravity and affecting the accuracy of the cutting process. The lifting mechanism also includes a centering clamp lifting cylinder (33) which drives the clamp-shaped clamp (31) to be lifted to a specified height for cutting by the pipe cutting machine, and a height positioning component which controls the height position of the support roller (32).

7. A semi-automatic feeding machine for assisting laser tube cutting and feeding according to claim 6, characterized in that: The height positioning component comprises a horizontal support lifting cylinder (34) for driving the support roller (32) to lift vertically; the horizontal support lifting cylinder (34) drives the bracket of the support roller (32) to drive the support roller (32) to move longitudinally; the bracket of the support roller (32) is also connected to a height adjustment roller (35); the height adjustment roller (35) and the bracket move synchronously; the height positioning component also comprises a height adjustment angle plate (37) driven by a second driving mechanism (36); the height adjustment angle plate (37) and the height adjustment roller (35) are always tightly fitted together under the drive of the horizontal support lifting cylinder (34); the height adjustment angle plate (37) and the height adjustment roller (35) are limitedly matched to control the height position of the support roller (32).

8. The semi-automatic feeding machine for assisting laser tube cutting and feeding according to claim 7, characterized in that: The second driving mechanism (36) is connected to a ball screw (38), and the ball screw (38) is connected to a mounting plate (39). A guide rail (40) is provided at the bottom of the mounting plate (39). The height adjustment angle plate (37) is arranged on the mounting plate (39). The ball screw (38) drives the mounting plate (39) to move horizontally left and right on the guide rail (40) through the second driving mechanism (36), thereby controlling the contact position between the height adjustment angle plate (37) and the height adjustment roller (35) to achieve the height position of the control support roller (32).

9. The semi-automatic feeding machine for assisting laser tube cutting and feeding according to claim 6, characterized in that: A plurality of the jacking units (3) share a common second driving mechanism (36), and the mounting plates (39) of every two adjacent jacking units (3) are connected in series via a power transmission rod (41) so that the second driving mechanism (36) drives the mounting plates (39) on all the jacking units (3) and the height adjustment angle plates (37) on the mounting plates (39) to move horizontally left and right synchronously on the guide rail (40).

10. The semi-automatic feeding machine for assisting laser tube cutting and feeding according to claim 6, characterized in that: The clamp-shaped clamp (31) comprises a clamping cylinder (311), wherein the clamping cylinder (311) drives the first rack (312) to move horizontally via a connecting plate, the first rack (312) is also meshed with a gear (313), the gear (313) is meshed with a second rack (314), the horizontal movement of the first rack (312) drives the second rack (314) to move horizontally in the opposite direction synchronously via the meshing of the gear (313), the first rack (312) and the second rack (314) are respectively connected to left and right vertical centering rollers (315), and the first rack (312) and the second rack (314) move horizontally in the opposite direction synchronously to achieve the clamping action of the left and right vertical centering rollers (315).

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