A semi-automatic loading machine for assisting in the loading of laser pipe cutting

Abstract

A semi-automatic loading machine for assisting laser tube cutting feeding, comprising a conveying chain device and a jacking mechanism. The conveying chain device is composed of a number of conveying chain units arranged in parallel and perpendicular to the conveying direction of the conveying chain device. The conveying chain unit includes a conveyor chain driven by a first driving mechanism. There are ramp positioning blocks on the conveyor chain, and a bent plate attachment is provided at the end of each ramp positioning block. The solution adopted in the present invention is to use a conveying chain plus a jacking structure to send the pipe to be processed into the laser cutting machine. During feeding, the operator needs to place the pipe on the positioning blocks of the conveying chain, and then it is automatically sent into the pipe cutting machine through the jacking mechanism. The conveying chain adopts a new solution of matching the chain with segmented ramp positioning blocks and bent plate attachments, which not only solves the problem of pipe positioning but also solves the problem of the cooperation between the positioning blocks and the chain. The conveying chain and the jacking mechanism are designed in a modular way that can be connected in series. By adjusting the number of modules, the feeding of pipes of various lengths can be completed.

Description

Technical Field

[0001] The present invention relates to the technical field of laser welding machines, and particularly relates to a semi-automatic loading machine for assisting laser pipe cutting loading. Background Art

[0002] With the market demand, there is an urgent need to improve the economy and working efficiency of laser pipe cutting machines. As an important factor affecting these two indicators during the operation of pipe cutting machines, the commonly used loading machines include manual, automatic, and semi-automatic types. Among them, the manual loading machine requires full human intervention, with low working efficiency and low cost; the fully automatic loading machine has less human intervention, and one person can monitor multiple devices, but the cost has increased significantly; while the semi-automatic loading machine is a compromise solution with less human intervention at a relatively low cost. Existing semi-automatic loading machines have problems such as the incompatibility between the pipe and the transmission chain. It is difficult to position the pipe on the transmission chain, and there is also a problem that the loading machine cannot well adapt to the loading functions of pipes of different sizes and lengths. Moreover, the pipe positioning of the loading machine must be accurate, otherwise it cannot be docked with the pipe cutting machine; during cutting, it is also necessary to continuously support the height of the pipe to prevent the pipe from bending and sagging due to gravity, which affects the cutting accuracy. Summary of the Invention

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

[0004] The technical solution adopted by the present invention is: a semi-automatic loading machine for assisting laser pipe cutting loading, including a conveying chain device and a lifting mechanism. The lifting mechanism is located at the end of the conveying chain device and sends the pipe to be processed conveyed by the conveying chain device into the laser cutting machine. The conveying chain device is composed of a number of conveying chain units arranged in parallel and perpendicular to the conveying direction of the conveying chain device. Each conveying chain unit includes a transmission chain driven by a first driving mechanism. A number of ramp positioning blocks are provided on the transmission chain, and a bent plate attachment is provided at the end of each ramp positioning block. The ramp positioning block and the bent plate attachment form a pipe positioning structure to achieve the positioning cooperation between the pipe on the transmission chain and the transmission chain.

[0005] The ramp positioning blocks are composed of a number of independent right-angled trapezoidal blocks. The hypotenuse of the right-angled trapezoidal block is upward. The heights of a number of the right-angled trapezoidal blocks decrease sequentially along the transmission direction to form a ramp structure. The bent plate attachment is provided 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-angled trapezoidal blocks and the bent plate attachment are independently installed on the transmission chain 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 in transmission cooperation with the conveying chain through the power chain and the gear set.

[0008] A plurality of the conveying chain units share the same first driving mechanism. A power shaft is arranged between the gear sets of every two adjacent conveying chain units. The power shaft is in transmission cooperation with the power chain through the gear set, and a plurality of adjacent power shafts are connected in series and share the same first driving mechanism.

[0009] The jacking mechanism is composed of a plurality of jacking units arranged vertically and side by side perpendicular to the conveying direction of the conveying chain device. The jacking unit includes a clamp and a support roller for continuously supporting the height of the pipe during cutting to prevent the pipe from bending and sagging due to gravity, which affects the cutting accuracy. The jacking mechanism further includes a centering clamp lifting cylinder for driving the clamp to be lifted to a specified height for the pipe cutting machine to cut, and a height positioning component for controlling the height position of the support roller.

[0010] The height positioning component includes a horizontal support lifting cylinder for driving the support roller to lift vertically. The horizontal support lifting cylinder drives the bracket of the support roller to drive the support roller to move longitudinally. A height adjustment roller is further connected to the bracket of the support roller, and the height adjustment roller moves synchronously with the bracket. The height positioning component further includes a height adjustment angle plate driven by a second driving mechanism. The height adjustment angle plate and the height adjustment roller are always in close contact under the drive of the horizontal support lifting cylinder, and the height position of the support roller is controlled by the limit cooperation between the height adjustment angle plate and the height adjustment roller.

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

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

[0013] The described clamp-type fixture includes a clamping cylinder. The clamping cylinder drives a first rack to move horizontally through a connecting plate. A gear is also meshed with the first rack, and a second rack is meshed with the gear. The horizontal movement of the first rack drives the second rack to move horizontally in the opposite direction synchronously through the meshing of the gear. Left and right vertically centering clamping rollers are respectively connected to the first rack and the second rack. The synchronous reverse horizontal movement of the first rack and the second rack realizes the clamping action of the left and right vertically centering clamping rollers.

[0014] The beneficial effects of the present invention are as follows: The present invention provides a semi-automatic loading machine for assisting laser pipe cutting, including a conveying chain device and a jacking mechanism. The jacking mechanism is located at the end of the conveying chain device and sends the pipe to be processed conveyed by the conveying chain device into the laser cutting machine. The conveying chain device is composed of several conveying chain units arranged in parallel and perpendicular to the conveying direction of the conveying chain device. The conveying chain unit includes a conveying chain driven by a first driving mechanism. Several ramp positioning blocks are provided on the conveying chain. A bent plate attachment is provided at the end of each ramp positioning block. The ramp positioning block and the bent plate attachment form a pipe positioning structure to realize the positioning cooperation between the pipe on the conveying chain and the conveying chain. The solution adopted by the present invention is to use a conveying chain plus a jacking structure to send the pipe to be processed into the laser cutting machine. During loading, the operator needs to place the pipe on the positioning block of the conveying chain, and then it is automatically sent into the pipe cutting machine by the jacking mechanism. The conveying chain adopts a new scheme of matching the segmented ramp positioning blocks and the chain with bent plate attachments, which solves both the pipe positioning problem and the problem of the cooperation between the positioning block and the chain. The conveying chain and the jacking mechanism are designed in a modular manner that can be connected in series. By adjusting the number of modules, the loading of pipes of various lengths can be completed. Brief Description of the Drawings

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

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

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

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

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

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

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

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

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

[0024] Figure 10 This is a schematic diagram of the clamp structure of the present invention.

[0025] Figure 11 This is a schematic diagram of the clamp structure of the present invention.

[0026] Among them, 1 - conveying chain unit, 2 - first driving mechanism, 3 - lifting unit, 11 - conveyor chain, 12 - ramp positioning block, 13 - bent plate accessory, 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. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] A semi-automatic loading machine for assisting laser pipe cutting in loading, comprising a conveying chain device and a lifting mechanism. The lifting mechanism is located at the end of the conveying chain device and feeds the pipes to be processed conveyed by the conveying chain device into the laser cutting machine. The conveying chain device is composed of several conveying chain units 1 arranged in parallel and perpendicular to the conveying direction of the conveying chain device. The conveying chain unit 1 includes a conveying chain 11 driven by a first driving mechanism 2. A plurality of ramp positioning blocks 12 are provided on the conveying chain 11. A bent plate attachment 13 is provided at the end of each ramp positioning block 12. The ramp positioning block 12 and the bent plate attachment 13 form a pipe positioning structure to achieve the positioning cooperation between the pipes on the conveying chain 11 and the conveying chain 11. The ramp positioning block 12 is composed of several independent right-angled trapezoidal blocks. The hypotenuse of the right-angled trapezoidal block is upward. The heights of several right-angled trapezoidal blocks decrease successively along the transmission direction to form a ramp 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 right-angled trapezoidal block and the bent plate attachment 13 are independently installed on the conveying chain 11 and fixed by fasteners. The conveying chain unit of the present invention adopts a brand-new scheme of matching segmented ramp positioning blocks and a chain with a bent plate attachment, which not only solves the problem of pipe positioning but also solves the problem of the cooperation between the positioning block and the chain. A power chain 21 and a gear set 22 are provided on the first driving mechanism 2. The first driving mechanism 2 is in transmission cooperation with the conveying chain 11 through the power chain 21 and the gear set 22.

[0029] The same first driving mechanism 2 is shared among several conveying chain units 1. A power shaft 14 is provided between the gear sets 22 of every two adjacent conveying chain units 1. The power shaft 14 is in transmission cooperation 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 conveying chain units, which are connected in series by power shafts and share a servo motor, so as to improve economy and facilitate series connection to adapt to the loading of pipes of various lengths.

[0030] The lifting mechanism is composed of several lifting units 3 arranged in parallel and perpendicular to the conveying direction of the conveying chain device. The lifting unit 3 includes a clamp 31 and a support roller 32 for continuously supporting the height of the pipe during cutting to prevent the pipe from bending and sagging due to gravity and affecting the cutting accuracy. The lifting mechanism further includes a centering clamp lifting cylinder 33 for driving the clamp 31 to be lifted to a specified height for cutting by the pipe cutting machine and a height positioning component for controlling the height position of the support roller 32.

[0031] The described 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. A height adjustment roller 35 is further connected to the bracket of the support roller 32, and the height adjustment roller 35 moves synchronously with the bracket. The height positioning component further 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 in close contact with each other under the drive of the horizontal support lifting cylinder 34. The height adjustment angle plate 37 and the height adjustment roller 35 are in limit cooperation to control the height position of the support roller 32.

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

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

[0034] The described clamp 31 includes a clamping cylinder 311. The clamping cylinder 311 drives the first rack 312 to move horizontally through a connecting plate. A gear 313 is also engaged with the first rack 312. A second rack 314 is engaged with the gear 313. The horizontal movement of the first rack 312 drives the second rack 314 to move synchronously and in the opposite direction horizontally through the engagement of the gear 313. Left and right vertical centering clamping rollers 315 are respectively connected to the first rack 312 and the second rack 314. The synchronous and opposite horizontal movement of the first rack 312 and the second rack 314 realizes the clamping action of the left and right vertical centering clamping rollers 315.

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

[0036] The solution for the feeding machine of the present invention to achieve feeding is as follows: 1. Manually place the pipes to be processed on the pipe positioning blocks on the chain with accessories; 2. Drive the chain with accessories to move by a servo motor, and then send the pipes to the capture range of the vertical centering clamp through the pipe positioning blocks on the conveyor chain; 3. Lift the support rollers to a specified height to complete the height positioning of the pipes; 4. Clamp the pipes with the left and right vertical centering clamp rollers under the push of the clamping cylinder to complete the horizontal position positioning of the pipes; 5. After the above two positionings send the pipes to a controllable specified position, hand them over to the pipe cutting machine for cutting. At this time, the positioning of the pipes that have completed positioning must be accurate, otherwise they cannot be docked with the pipe cutting machine; during cutting, the water support rollers will continuously support the height of the pipes to prevent the pipes from bending and sagging due to gravity, affecting the accuracy of cutting processing;

[0037] Attention to all technical personnel: Although the present invention has been described according to the above specific embodiments, the inventive concept of the present invention is not limited to this invention only. Any modification using the inventive concept of the present invention will be included in the protection scope of the patent right of this patent.

[0038] The above is only the preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments only. All technical solutions falling within the inventive concept of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, several improvements and refinements made without departing from the principle of the present invention should also be regarded as within the protection scope of the present invention.

Claims

1. A semi-automatic loading machine for assisting laser tube cutting loading, comprising a conveying chain device and a lifting mechanism. The lifting mechanism is located at the end of the conveying chain device to send the pipe to be processed conveyed by the conveying chain device into the laser cutting machine. It is characterized in that, The described conveying chain device is composed of a number of conveying chain units (1) arranged in parallel and perpendicular to the conveying direction of the conveying chain device. The conveying chain unit (1) includes a conveying chain (11) driven by a first driving mechanism (2). A number of ramp positioning blocks (12) are provided on the conveying chain (11). A bent plate attachment (13) is provided at the end of each ramp positioning block (12). The ramp positioning block (12) and the bent plate attachment (13) form a pipe positioning structure to achieve the positioning cooperation between the pipes on the conveying chain (11) and the conveying chain (11). The jacking mechanism is composed of a number of jacking units (3) arranged in parallel and perpendicular to the conveying direction of the conveying chain device. The jacking unit (3) includes a clamp fixture (31) and a support roller (32) that continuously supports the height of the pipe during cutting to prevent the pipe from bending and sagging due to gravity, which affects the cutting accuracy. The jacking mechanism also includes a centering clamp lifting cylinder (33) that drives the clamp fixture (31) to be lifted to a specified height for the pipe cutting machine to cut, and a height positioning component that controls the height position of the support roller (32). The height positioning component includes a horizontal support lifting cylinder (34) that drives the support roller (32) to vertically lift and lower. The horizontal support lifting cylinder (34) drives the bracket of the support roller (32) to drive the support roller (32) to move longitudinally. A height adjustment roller (35) is also connected to the bracket of the support roller (32). 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 in close contact under the drive of the horizontal support lifting cylinder (34). The height adjustment angle plate (37) and the height adjustment roller (35) are in a limiting cooperation to control the height position of the support roller (32). A ball screw (38) is connected to the second driving mechanism (36). An installation plate (39) is connected to the ball screw (38). A guide rail (40) is provided at the bottom of the installation plate (39). The height adjustment angle plate (37) is arranged on the installation plate (39). The ball screw (38) drives the installation plate (39) to move horizontally left and right on the guide rail (40) through the second driving mechanism (36) to control the contact position between the height adjustment angle plate (37) and the height adjustment roller (35) to achieve the control of the height position of the support roller (32). The same second driving mechanism (36) is shared among a number of the jacking units (3). The installation plates (39) between every two adjacent jacking units (3) are connected in series through a power transmission rod (41) to enable the second driving mechanism (36) to drive the installation plates (39) and the height adjustment angle plates (37) on all the jacking units (3) to move horizontally left and right synchronously on the guide rail (40).

2. The semi-automatic loading machine for assisting laser pipe cutting loading according to claim 1, wherein, The described ramp positioning block (12) is composed of a number of independent right trapezoidal blocks. The hypotenuse of the right trapezoidal block is arranged upward. The heights of the number of right trapezoidal blocks decrease successively along the transmission direction to form a ramp structure. The bent plate attachment (13) is arranged at the end of the right trapezoidal block with the lowest height to form a hook-shaped limiting structure.

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

4. A semi-automatic loading machine for assisting in laser pipe cutting loading, characterized in that, The first driving mechanism (2) is provided with a power chain (21) and a gear set (22). The first driving mechanism (2) is in transmission cooperation with the conveyor chain (11) through the power chain (21) and the gear set (22).

5. The semi-automatic loading machine for assisting in laser pipe cutting and loading according to claim 4, wherein A number of the conveying chain units (1) share the same first driving mechanism (2). A power shaft (14) is arranged between the gear sets (22) of every two adjacent conveying chain units (1). The power shaft (14) is in transmission cooperation with the power chain (21) through the gear set (22). A number of adjacent power shafts (14) are connected in series and share the same first driving mechanism (2).

6. The semi-automatic loading machine for assisting laser tube cutting loading according to claim 1, wherein, The described clamp (31) includes a clamping cylinder (311). The clamping cylinder (311) drives a first rack (312) to move horizontally through a connecting plate. A gear (313) is also meshed with the first rack (312). A second rack (314) is meshed with the gear (313). The horizontal movement of the first rack (312) drives the second rack (314) to move horizontally synchronously and in the opposite direction through the meshing of the gear (313). Left and right vertically centering clamping rollers (315) are respectively connected to the first rack (312) and the second rack (314). The synchronous and opposite horizontal movement of the first rack (312) and the second rack (314) realizes the clamping action of the left and right vertically centering clamping rollers (315).

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