CN112775572B - Automatic pipe blanking device and method for laser pipe cutting machine and pipe cutting machine - Google Patents
Automatic pipe blanking device and method for laser pipe cutting machine and pipe cutting machine Download PDFInfo
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- CN112775572B CN112775572B CN202110189238.3A CN202110189238A CN112775572B CN 112775572 B CN112775572 B CN 112775572B CN 202110189238 A CN202110189238 A CN 202110189238A CN 112775572 B CN112775572 B CN 112775572B
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Abstract
The invention relates to a laser pipe cutting machine and an automatic pipe blanking device and method of the pipe cutting machine. According to the automatic blanking device, the parts with different lengths are respectively blanked into different blanking devices, so that the phenomenon that the long parts cannot be automatically blanked is avoided, and the working efficiency is improved.
Description
Technical Field
The invention belongs to the field of laser pipe cutting machine processing, and particularly relates to a laser pipe cutting machine, and an automatic pipe blanking device and method of the laser pipe cutting machine.
Background
In the field of laser pipe cutting machine processing, the requirements of the processed product parts are carried off from a machine tool. The conventional process flow can only process parts shorter than 1.2 meters, and the parts fall freely after being cut off and fall into a short-circuit feed box through a lathe bed discharge hole. In order to ensure the precision of the machine tool, the length of the discharge hole of the machine tool cannot be lengthened limitlessly, so that automatic blanking after cutting cannot be realized for parts longer than 1.2 meters, the machine tool cannot be used for cutting long parts, and the application range of the machine tool is limited.
There is also a method of manual handling to perform blanking of cut parts, but manual handling of pipes consumes a lot of manpower, and efficiency is 90% slower than automatic blanking, and there is also a safety problem.
Disclosure of Invention
The invention provides a laser pipe cutting machine, and an automatic pipe blanking device and method for the same, which at least can solve part of defects in the prior art.
The technical scheme of the invention is realized as follows: the invention discloses an automatic pipe blanking device of a pipe cutting machine, which comprises a pipe clamping and conveying device, a blanking jacking device, a lower sliding frame assembly and a first material receiving box, wherein the pipe clamping and conveying device is used for clamping a finished part from a discharge hole of the pipe cutting machine and conveying the finished part to the position above the blanking jacking device, the blanking jacking device comprises a pipe lifting device and a jacking driving device used for driving the pipe lifting device to lift, the higher side of the lower sliding frame assembly is in butt joint with the blanking jacking device, the lower side of the lower sliding frame assembly is in butt joint with the first material receiving box, and when the jacking driving device of the blanking jacking device drives the pipe lifting device to descend, the finished part lifted by the pipe lifting device falls into the first material receiving box along the lower sliding frame assembly.
Further, the automatic pipe blanking device of the pipe cutting machine further comprises a second material receiving box and a discharging plate, wherein the discharging plate is obliquely arranged and is positioned below a discharging hole of the pipe cutting machine, and the lower side of the discharging plate is in butt joint with the second material receiving box; the discharging plate is positioned between the pipe cutting machine and the blanking jacking device.
Further, the automatic pipe blanking device comprises a plurality of groups of blanking jacking devices, and the groups of blanking jacking devices are distributed at intervals along the X direction; two sides of the blanking jacking device are respectively provided with a feeding guide rail extending along the X direction; two sides of the pipe clamping and conveying device are respectively supported on the feeding guide rails at two sides of the blanking jacking device and are in sliding fit; the pipe clamping and conveying device spans over the blanking jacking devices, and when the pipe clamping and conveying device is driven by the driving unit to move along the X direction, the pipe clamping and conveying device sequentially passes over the plurality of groups of blanking jacking devices; one side of the blanking jacking device is provided with a rack extending along the X direction, the driving unit is fixed on the pipe clamping and conveying device, the output shaft of the driving unit is fixed with a gear, and the gear is meshed with the rack; the feeding guide rail is arranged at the upper end of the machine tool, and the blanking jacking device is arranged in the machine tool; one end of the machine tool, which is far away from the discharge port of the pipe cutting machine, is provided with a limiting device for limiting the pipe clamping and conveying device.
The lower ends of two sides of the pipe clamping and conveying device are respectively fixed with a sliding block, and the sliding blocks of the lower ends of two sides of the pipe clamping and conveying device are respectively in sliding fit with the feeding guide rails of two sides of the blanking jacking device. The limiting device adopts a buffer bracket.
Further, the pipe clamping and conveying device adopts a chuck capable of feeding along the X direction.
Further, the pipe lifting device comprises a pipe lifting wheel, the pipe lifting wheel is arranged on a wheel shaft, two ends of the wheel shaft are respectively and rotatably supported on a lifting wheel mounting frame, and the lifting wheel mounting frame is fixedly connected with a driving shaft of the jacking driving device and used for driving the lifting wheel mounting frame to lift; the jacking driving device adopts a driving cylinder; grooves for supporting pipes with different pipe diameters are formed in the circumferential surface of the pipe lifting wheel to form a profiling wheel; the lifting wheel mounting frame is located in the fixing frame, side plates are arranged on two sides of the lifting wheel mounting frame, and sliding block guide rail pairs are arranged between the side plates on two sides of the lifting wheel mounting frame and the side plates on two sides of the fixing frame respectively.
Further, one end of the wheel shaft is fixed with a driven sprocket, the lifting wheel mounting frame is fixed with a T-shaped speed reducer, an input shaft of the T-shaped speed reducer is connected with a power device, a first output shaft of the T-shaped speed reducer is fixed with a driving sprocket, and the driving sprocket is connected with the driven sprocket through a chain. According to the invention, the input shaft of the T-shaped speed reducer of the first group of blanking jacking devices is connected with a power device (such as a motor), every two adjacent groups of T-shaped speed reducers of the blanking jacking devices are connected through a universal shaft, for example, the second output shaft of the T-shaped speed reducer of the first group of blanking jacking devices is connected with the input shaft of the T-shaped speed reducer of the second group of blanking jacking devices through the universal shaft, the second output shaft of the T-shaped speed reducer of the second group of blanking jacking devices is connected with the input shaft of the T-shaped speed reducer of the third group of blanking jacking devices through the universal shaft, and the connection of the T-shaped speed reducers of the plurality groups of blanking jacking devices is realized by analogy in sequence, so that the synchronous rotation of the pipe lifting wheels of the plurality groups of blanking jacking devices is controlled for matching pipes with corresponding pipe diameters.
Further, the lower carriage assembly comprises a lower carriage, a base and a driving device for driving the lower carriage to move along the Y direction, and the lower carriage is in sliding fit with the base; the upper end of the lower sliding frame is provided with a supporting guide surface which is obliquely arranged, the lower side of the supporting guide surface of the lower sliding frame is used for being in butt joint with the first material receiving box, and the higher side of the supporting guide surface of the lower sliding frame is used for being in butt joint with the blanking jacking device.
When the lifting driving device of the blanking lifting device drives the pipe lifting device to descend, finished parts lifted by the pipe lifting device fall into the first material receiving box along the supporting guide surface of the lower sliding frame assembly.
The lower sliding frame comprises a lower sliding plate or a lower sliding rod which is obliquely arranged. The lower sliding frame of this embodiment includes the lower slide bar of many slope settings, and a plurality of lower slide bars set up side by side along X direction interval, rotatably support the gyro wheel on the lower slide bar.
The driving device for driving the lower sliding frame to move is fixedly arranged on the base, and the driving device for driving the lower sliding frame to move adopts a driving cylinder. And a sliding block guide rail pair is arranged between the lower sliding frame and the base.
The X direction is the pipe transportation direction, and the Y direction is vertical to the X direction.
The invention discloses an automatic pipe blanking method of a pipe cutting machine, which adopts the automatic pipe blanking device, and comprises the following steps:
The control system calculates the length and the position of the finished product part in real time in the operation process of the pipe cutting machine, compares the length and the position with preset values, and for the finished product part which is processed, if the length of the finished product part is smaller than or equal to the preset values, the finished product part directly falls down freely, and falls into the second material receiving box through the discharge hole of the pipe cutting machine, and if the length of the finished product part is larger than the preset values, the control system controls the automatic pipe discharging device to convey the finished product part into the first material receiving box.
Further, if the length of the finished part is greater than a preset value, the control system controls the automatic pipe blanking device to convey the finished part to the first material receiving box, and the automatic pipe blanking device specifically comprises: when the part is calculated to reach the blanking position, the pipe clamping and conveying device is loosened and is far away from the part, the blanking sliding frame component extends out to the lower part of the blanking and lifting device, the blanking and lifting device descends and retracts, and a finished product falls into the first material receiving box along the blanking sliding frame component;
The unloading jacking device automatically rises to hold the part in the forward feeding process of the pipe clamping and conveying device, and specifically comprises the following steps: when the pipe clamping conveying device clamps the part and feeds the part rightwards, the control system calculates the current coordinate position of the set point of the pipe clamping conveying device, compares the current coordinate position with the preset work starting coordinate threshold value of each group of blanking jacking devices, and outputs an instruction to control the corresponding blanking jacking device to lift and hold the part each time the current coordinate of the set point of the pipe clamping conveying device exceeds the preset work starting coordinate threshold value of the blanking jacking device;
When the part is calculated to reach the blanking position, the pipe clamping and conveying device is loosened and is far away from the part, and the pipe clamping and conveying device specifically comprises: when the pipe clamping and conveying device clamps the part to feed rightwards, the control system calculates the current coordinate position of the left end of the part and compares the current coordinate position with a preset blanking position coordinate threshold value, and if the current coordinate of the left end of the part is equal to or greater than the preset blanking position coordinate threshold value, the control system outputs an instruction to enable the pipe clamping and conveying device to loosen the part and move to a safe coordinate position.
The preset value preset in the control system is smaller than or equal to the limit length of the second material receiving box.
The invention also discloses a laser pipe cutting machine, which comprises a laser pipe cutting machine main body and the automatic pipe blanking device, wherein the automatic pipe blanking device is arranged at a discharge hole of the laser pipe cutting machine main body.
Further, the laser pipe cutting machine main body comprises a machine tool extending along the X direction, and a cutting head, a supporting chuck and a clamping chuck capable of feeding along the X direction are arranged on the machine tool; the machine tool is also provided with a pipe jacking device, and the pipe jacking device is positioned between the clamping chuck and the supporting chuck;
The laser pipe cutting machine further comprises a control system, the control system is connected with the laser pipe cutting machine main body and the automatic pipe discharging device, the control system is used for calculating the length and the position of a finished product part in real time in the operation process of the laser pipe cutting machine main body, if the length of the finished product part is smaller than or equal to a preset value, the finished product part falls into the second material receiving box through a material outlet of the pipe cutting machine, and if the length of the finished product part is larger than the preset value, the control system controls the automatic pipe discharging device to convey the finished product part into the first material receiving box.
The discharging plate is fixed below the cutting head; the clamping chuck is located the feed end of main part lathe, and cutting head, support chuck are located the discharge end of main part lathe, and the left side that is located the flitch on the lathe is support chuck, and the right side that is located the flitch on the lathe is unloading jacking device, tubular product centre gripping conveyor in proper order.
The invention has at least the following beneficial effects: because the automatic pipe blanking device is arranged, for short parts, finished products directly fall off and fall into a short material box through a lathe bed discharge hole; for long parts, conveying finished parts to a proper position by a pipe clamping and conveying device of the pipe automatic blanking device, then lifting and supporting the parts by a blanking jacking device, withdrawing the pipe clamping and conveying device, extending a blanking carriage assembly to the lower part of the blanking jacking device, dropping the blanking jacking device, and dropping finished products into a long material receiving box along the blanking carriage assembly. Thereby realize the automatic material transportation that connects of the finished product of different length through above action, need not manual operation, improved production efficiency, reduced manufacturing and cost of maintenance, simple structure, simple to operate.
According to the invention, the length of the part and the position of the part are calculated and judged in real time through the control system, different blanking modes are adopted for the parts with different lengths and the parts with different lengths, and the parts with different lengths are respectively blanked into different blanking devices, so that the phenomenon that the long part cannot be automatically blanked is avoided, the safety of personnel and equipment is ensured, and the working efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of the overall structure of a laser pipe cutting machine according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a laser pipe cutting machine body according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an automatic pipe blanking device of a pipe cutting machine according to an embodiment of the present invention;
FIG. 4 is a schematic view of a lower carriage assembly according to an embodiment of the present invention;
FIG. 5 is an enlarged view of a portion of a lower carriage assembly provided in an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a blanking and jacking device according to an embodiment of the present invention;
fig. 7 is a schematic diagram of an internal structure of a blanking and jacking device according to an embodiment of the present invention.
In the drawing, 1 is a main body of a laser pipe cutting machine, 11 is a machine tool, 12 is a supporting chuck, 13 is a clamping chuck, 14 is a cutting head, 2 is a discharging plate, 3 is a second receiving box, 4 is a blanking jacking device, 41 is a pipe jacking wheel, 42 is a jacking wheel mounting frame, 43 is a driving cylinder of the blanking jacking device, 44 is a sliding block guide rail pair of the blanking jacking device, 45 is a fixing frame, 46 is a T-shaped speed reducer, 47 is a driving chain wheel, 48 is a driven chain wheel, 49 is a power device, 5 is a lower carriage assembly, 51 is a lower carriage, 52 is a base, 53 is a driving cylinder of the lower carriage assembly, 54 is a sliding block guide rail pair of the lower carriage assembly, 55 is a roller of the lower carriage assembly, 6 is a first receiving box, 7 is a pipe clamping conveying device, 8 is a buffer bracket, and 9 is a feeding guide rail.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1 to 6, an embodiment of the present invention provides an automatic pipe blanking device of a pipe cutting machine, including a pipe clamping and conveying device 7, a blanking jacking device 4, a lower carriage assembly and a first material receiving box, where the pipe clamping and conveying device 7 is used to clamp a finished part from a discharge hole of the pipe cutting machine and convey the finished part to above the blanking jacking device 4, the blanking jacking device 4 includes a pipe lifting device and a jacking driving device used to drive the pipe lifting device to lift, a higher side of the lower carriage assembly is in butt joint with the blanking jacking device 4, a lower side of the lower carriage assembly is in butt joint with the first material receiving box, and when the jacking driving device of the blanking jacking device 4 drives the pipe lifting device to descend, the finished part lifted by the pipe lifting device falls into the first material receiving box 6 along the lower carriage assembly.
Further, the automatic pipe blanking device of the pipe cutting machine of the embodiment further comprises a second material receiving box 3 and a material discharging plate 2, wherein the material discharging plate 2 is obliquely arranged, the material discharging plate 2 is positioned below a material discharging hole of the pipe cutting machine, and the lower side of the material discharging plate 2 is in butt joint with the second material receiving box 3; the discharging plate 2 is positioned between the pipe cutting machine and the blanking jacking device 4. The first material receiving box is longer than the second material receiving box 3, the first material receiving box is a long material receiving box, and the second material receiving box 3 is a short material receiving box. The bottom of the first material receiving box and the bottom of the second material receiving box 3 are respectively provided with a roller, so that the movement is convenient.
Further, the automatic pipe blanking device of the pipe cutting machine of the embodiment further comprises a machine tool 11 extending along the X direction, and the blanking jacking device 4 is fixed on the machine tool 11; the lower carriage assembly, the first receiving box and the second receiving box 3 are fixed on one side beside the machine tool 11.
The pipe clamping and conveying device is further provided with three proximity switch sensors, the three proximity switch sensors correspond to sensing blocks on a machine tool and are used for determining zero positions, positive limit positions and negative limit positions of the pipe clamping and conveying device, the zero positions correspond to origins of forward and backward movement of the pipe clamping and conveying device, the positive limit positions and the negative limit positions are soft limit positions, the pipe clamping and conveying device is prevented from moving beyond a given range, and the right end of the machine tool is further provided with hard limit positions and double insurance. One end of the machine tool 11, which is far away from the discharge port of the pipe cutting machine, is provided with a limiting device for limiting the pipe clamping and conveying device, and the limiting device adopts a buffer bracket 8.
Further, the pipe clamping and conveying device adopts a chuck capable of feeding along the X direction, and the chuck is connected with a chuck driving mechanism capable of driving the chuck to slide along the X direction. The pipe clamping and conveying device moves leftwards from home position, moves specified displacement, opens clamping jaws to clamp a pipe, then moves specified displacement rightwards, lifts and pulls the pipe, calculates the current position of the pipe clamping and conveying device in real time, and avoids collision with the pipe clamping and conveying device when the lifting device lifts.
Further, the automatic pipe blanking device comprises a plurality of groups of blanking jacking devices 4, and the groups of blanking jacking devices 4 are distributed at intervals along the X direction; two sides of the blanking jacking device 4 are respectively provided with a feeding guide rail 9 extending along the X direction; two sides of the pipe clamping and conveying device are respectively supported on the feeding guide rails 9 at two sides of the blanking jacking device 4 and are in sliding fit; the pipe clamping and conveying device spans over the blanking jacking devices 4, and when the pipe clamping and conveying device is driven by the driving unit to move along the X direction, the pipe clamping and conveying device sequentially passes over a plurality of groups of blanking jacking devices 4; a rack extending along the X direction is arranged on one side of the blanking jacking device 4, the driving unit is fixed on the pipe clamping and conveying device, a gear is fixed on an output shaft of the driving unit, and the gear is meshed with the rack; the feeding guide rail is arranged at the upper end of the machine tool 11, and the blanking jacking device 4 is arranged in the machine tool 11.
The lower ends of two sides of the pipe clamping and conveying device are respectively fixed with a sliding block, and the sliding blocks of the lower ends of two sides of the pipe clamping and conveying device are respectively in sliding fit with the feeding guide rails of two sides of the blanking jacking device 4.
Further, the pipe lifting device comprises a pipe lifting wheel 41, the pipe lifting wheel 41 is arranged on a wheel shaft, two ends of the wheel shaft are respectively rotatably supported on a lifting wheel mounting frame 42, and the lifting wheel mounting frame 42 is fixedly connected with a driving shaft of the jacking driving device and used for driving the lifting wheel mounting frame 42 to lift; the jacking driving device adopts a driving cylinder 43; grooves for supporting pipes with different pipe diameters are formed in the circumferential surface of the pipe lifting wheel 41, the width of the grooves is continuously changed along the circumference of the pipe lifting wheel 41, and a profiling wheel is formed; the lifting wheel mounting frame 42 is located the mount, the both sides of lifting wheel mounting frame 42 are equipped with the curb plate, the both sides curb plate of lifting wheel mounting frame 42 corresponds respectively with the both sides curb plate of mount 45 between be equipped with slider guide rail pair 44.
The embodiment can automatically adjust the rotation of the pipe lifting wheel 41 and manually adjust the rotation of the pipe lifting wheel 41, so as to adapt to pipes with different pipe diameters. The scheme for automatically adjusting the rotation of the pipe lifting wheel 41 is as follows: one end of the wheel shaft is fixed with a driven sprocket 48, the lifting wheel mounting frame 42 is fixed with a T-shaped speed reducer 46, an input shaft of the T-shaped speed reducer 46 is connected with a power device, a first output shaft of the T-shaped speed reducer is fixed with a driving sprocket 47, and the driving sprocket 47 is connected with the driven sprocket 48 through a chain. In this embodiment, the input shaft of the T-type speed reducer of the first group of blanking and jacking devices 4 is connected with the power device 49, and the T-type speed reducers of every two adjacent groups of blanking and jacking devices 4 are connected through a universal shaft, for example, the second output shaft of the T-type speed reducer of the first group of blanking and jacking devices 4 is connected with the input shaft of the T-type speed reducer of the second group of blanking and jacking devices 4 through a universal shaft, the second output shaft of the T-type speed reducer of the second group of blanking and jacking devices 4 is connected with the input shaft of the T-type speed reducer of the third group of blanking and jacking devices 4 through a universal shaft, and so on, so that the connection of the T-type speed reducers of multiple groups of blanking and jacking devices 4 is realized, and the pipe lifting wheels 41 of the multiple groups of blanking and jacking devices 4 are controlled to synchronously rotate for matching pipes with corresponding pipe diameters.
A solution for manually adjusting the rotation of the tube lift wheel 41 is disclosed in the patent publication CN 208556358U.
Further, the lower carriage assembly 5 includes a lower carriage 51, a base 52, and a driving cylinder 53 for driving the lower carriage to move in the Y direction, the lower carriage being slidably engaged with the base; the upper end of the lower sliding frame is provided with a support guide surface which is obliquely arranged, the lower side of the support guide surface of the lower sliding frame is used for being in butt joint with the first material receiving box 6, and the higher side of the support guide surface of the lower sliding frame is used for being in butt joint with the blanking jacking device 4.
When the lifting driving device of the blanking lifting device 4 drives the pipe lifting device to descend, finished parts lifted by the pipe lifting device fall into the first material receiving box along the supporting guide surface of the lower sliding frame assembly.
The lower sliding frame comprises a lower sliding plate or a lower sliding rod which is obliquely arranged. The lower carriage of this embodiment includes a plurality of obliquely arranged lower slide bars arranged side by side at intervals along the X-direction, and the lower slide bars are rotatably supported with rollers 55.
The driving device for driving the lower sliding frame to move is fixedly arranged on the base, and the driving device for driving the lower sliding frame to move adopts a driving cylinder. A slide block guide rail pair 54 is arranged between the lower sliding frame and the base.
The X direction is the pipe transportation direction, and the Y direction is vertical to the X direction.
Example two
The embodiment discloses a laser pipe cutting machine, including laser pipe cutting machine main part 1 and the automatic unloader of tubular product of embodiment one, the automatic unloader of tubular product sets up the discharge gate at laser pipe cutting machine main part 1.
Further, the laser pipe cutting machine body 1 comprises a machine tool 11 extending along the X direction, and the machine tool 11 is provided with a cutting head 14, a supporting chuck 12 and a clamping chuck 13 capable of feeding along the X direction; the machine tool 11 is also provided with a pipe jacking device, and the pipe jacking device is positioned between the clamping chuck 13 and the supporting chuck 12.
The laser pipe cutting machine still includes control system, control system is connected with laser pipe cutting machine main part 1, the automatic unloader of tubular product, control system is used for calculating the length and the position of finished product part in real time at the operation in-process of laser pipe cutting machine main part 1, to the finished product part that processing was accomplished, if finished product part length is less than or equal to the default, then finished product part falls into second material receiving box 3 through the discharge gate of pipe cutting machine, if finished product part length is greater than the default, then control system control tubular product automatic unloader carries finished product part to first material receiving box.
The discharging plate 2 is fixed below the cutting head 14; the clamping chuck 13 is located the feed end of main part lathe 11, and cutting head 14, support chuck 12 are located the discharge end of main part lathe 11, and the left side that is located discharge plate 2 on the lathe 11 is support chuck 12, and the right side that is located discharge plate 2 on the lathe 11 is unloading jacking device 4, tubular product clamping conveyor in proper order.
Example III
The embodiment discloses an automatic pipe blanking method of a pipe cutting machine, which adopts the automatic pipe blanking device described in the first embodiment or the laser pipe cutting machine described in the second embodiment, and comprises the following steps:
the control system calculates the length and the position of the finished product part in real time in the operation process of the pipe cutting machine, compares the length and the position with preset values, and for the finished product part which is processed, if the length of the finished product part is smaller than or equal to the preset values, the finished product part directly falls down freely, and falls into the second material receiving box 3 through the discharge hole of the pipe cutting machine, and if the length of the finished product part is larger than the preset values, the control system controls the automatic pipe discharging device to convey the finished product part into the first material receiving box.
Further, the control system calculates the length and the position of the finished part in real time in the operation process of the pipe cutting machine, and specifically comprises the following steps: the control system records the coordinates of machine tool axes before and after the part is cut (namely, the axis coordinates of the left end and the right end of the part when the part is cut off), and calculates the length of the finished part through the coordinate difference value in the X-axis direction;
If the length of the finished part is greater than a preset value, the control system controls the automatic pipe discharging device to convey the finished part to the first material receiving box, and the automatic pipe discharging device specifically comprises: when the blanking jacking device 4 is in a retracted state in the initial state, if the length of the part is greater than a preset value, the pipe clamping conveying device approaches to the cutting head 14 to clamp the part, the pipe clamping conveying device moves in a direction away from the cutting head 14 after clamping the part, namely forward feeding, the blanking jacking device 4 automatically lifts and supports the part in the forward feeding process of the pipe clamping conveying device, when the part is calculated to reach the blanking position, the pipe clamping conveying device is loosened and is far away from the part, the lower sliding frame assembly extends out to the lower side of the blanking jacking device 4, the blanking jacking device 4 descends and retracts, and a finished product falls into the first receiving box along the lower sliding frame assembly;
The blanking jacking device 4 automatically lifts and supports parts in the forward feeding process of the pipe clamping and conveying device, and specifically comprises the following steps: when a pipe clamping and conveying device clamps a part (the right end of the part is clamped on a clamping jaw of the pipe clamping and conveying device) and positively feeds to the right, the control system calculates the current coordinate position of the clamping jaw of the pipe clamping and conveying device or the current coordinate position of the right end of the part, compares the current coordinate position with the work starting coordinate threshold value of each preset group of blanking jacking devices 4, and controls the corresponding blanking jacking devices 4 to lift up to support the part and avoid collision with the pipe clamping and conveying device when the jacking devices lift up each time when the current coordinate position of the clamping jaw of the pipe clamping and conveying device or the current coordinate position of the right end of the part exceeds the work starting coordinate threshold value of one preset blanking jacking device 4.
The control system can calculate the current coordinate position of the right end of the part according to the recorded machine tool axis coordinate of the right end of the part during the cutting of the part and the real-time axis coordinate of the movement of the pipe clamping and conveying device.
When the part is calculated to reach the blanking position, the pipe clamping and conveying device is loosened and is far away from the part, and the pipe clamping and conveying device specifically comprises: in the process that the pipe clamping and conveying device clamps the pipe and feeds the pipe rightwards, the control system calculates the current coordinate position of the left end of the part according to the recorded machine axis coordinate of the left end of the part when the part is cut and the real-time axis coordinate of the movement of the pipe clamping and conveying device, compares the current coordinate position with a preset blanking position coordinate threshold value, and if the current coordinate of the part is equal to or greater than the preset blanking position coordinate threshold value, the control system outputs an instruction to enable the pipe clamping and conveying device to loosen the part and move to a safe coordinate position;
the preset value preset in the control system is smaller than or equal to the limit length of the second material receiving box.
The embodiment of the invention provides an automatic blanking process of long parts, which comprises the following steps:
S1, presetting a work starting coordinate of a blanking jacking device C1 to be X1 (1600 mm, for example), presetting a work starting coordinate of a blanking jacking device C2 to be X2 (3000 mm, for example), presetting a work starting coordinate of a blanking jacking device C3 to be X3 (5000 mm, for example), and presetting a blanking position coordinate threshold to be X4 (1500 mm, for example) in an input control system.
S2, the control system calculates the length of a finished part in real time in the running process of the machine tool, and if the length of the machined part is larger than a preset value, the blanking jacking device, the pipe clamping and conveying device and the lower sliding frame group participate in working to convey the finished product into the long material receiving box.
In this embodiment, the control system calculates the length of the finished part in real time, records the coordinate of the machine axis of the part before cutting as a1, records the coordinate of the machine axis of the part after cutting as a2, calculates the length l= |a2-a1| of the finished part by the coordinate difference value, compares the length with a preset value (which can be set to 1200mm according to actual needs), and conveys the finished part to the long receiving box through the actions of the blanking jacking device, the pipe clamping and conveying device and the lower carriage assembly because the length of the part is greater than the preset value.
Further, in s2, the control system controls the pipe clamping and conveying device to clamp the parts and feed forward.
Further, in the forward feeding process of the pipe clamping and conveying device, the control system calculates the current coordinate position A1 of the part according to the recorded machine axis coordinates before the part is cut and the real-time axis coordinates of the movement of the pipe clamping and conveying device, compares the current coordinate position A1 with a preset coordinate threshold value of the blanking jacking device, and when A1 is larger than the preset coordinate threshold value X1 (such as 1600 mm) of the blanking jacking device of C1, the control system outputs an instruction to enable the blanking jacking device C1 to lift and hold the part. When A1 is larger than C2, the coordinate threshold X2 (3000 mm, for example) of the blanking jacking device is preset, the control system outputs an instruction to enable the blanking jacking device C2 to lift and hold the part. When A1 is larger than C3, the coordinate threshold X3 (5000 mm, for example) of the blanking jacking device is preset, the control system outputs an instruction to enable the blanking jacking device C3 to lift and hold the part.
Further, in the forward feeding process of the pipe clamping and conveying device, the control system calculates the current coordinate position A2 of the part according to the recorded machine axis coordinates of the cut part and the real-time axis coordinates of the movement of the pipe clamping and conveying device, compares the current coordinate position A2 with a preset blanking position coordinate threshold value X4 (such as 1500 mm), and when A2 is larger than X4 (such as 1500 mm), the control system outputs an instruction to enable the pipe clamping and conveying device to loosen the part and move to a safe coordinate position.
Further, the lower carriage assembly extends to the lower part of the blanking jacking device, the blanking jacking device falls down, and finished parts fall into the long material receiving box along the lower carriage assembly.
The position information of the cutting point of the pipe is input through graphic design software in an engineering graphic recognition system, and the real-time position information of the current cutting point is determined through the engineering graphic recognition system. The engineering pattern recognition system is beneficial to the control system to calculate the length and the position of the part in real time. And is beneficial to accurate control. The pattern recognition system is a common technical means in the automatic control engineering. In particular, in this embodiment, the operation of controlling the mechanical cutting of the cutting head may be implemented, and the real-time position information of the current cutting point may be determined.
The embodiment of the invention provides an automatic blanking process of short parts, which comprises the following steps:
The control system calculates the length of a finished part in real time in the running process of the machine tool, and for the finished part, if the length of the part is smaller than or equal to the length of the short-circuit feed box, the part falls into the short-circuit feed box through a lathe bed discharge port.
In this embodiment, the control system calculates the length of the finished part in real time, records the coordinate of the machine axis of the part before cutting as a1, records the coordinate of the machine axis of the part after cutting as a2, calculates the length L of the finished part as |a2-a1| by the coordinate difference, and compares the calculated length with a preset value, and because the length L of the part is smaller than or equal to the preset value, the part directly falls freely and falls into the short-circuit feed box through the discharge port of the machine body.
In the above method, the length of the part can be precisely positioned and calculated by the control system, which is easily achieved by a person skilled in the art, for example, by obtaining the axis coordinates by means of an encoder.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (10)
1. Automatic unloader of tubular product of pipe cutting machine, its characterized in that: the pipe clamping and conveying device is used for clamping finished parts from a discharge hole of the pipe cutting machine and conveying the finished parts to the position above the blanking jacking device, the blanking jacking device comprises a pipe lifting device and a jacking driving device used for driving the pipe lifting device to lift, the higher side of the lower sliding frame assembly is in butt joint with the blanking jacking device, the lower side of the lower sliding frame assembly is in butt joint with the first material receiving box, and when the jacking driving device of the blanking jacking device drives the pipe lifting device to descend, the finished parts lifted by the pipe lifting device fall into the first material receiving box along the lower sliding frame assembly;
The lower carriage assembly comprises a lower carriage, a base and a driving device for driving the lower carriage to move along the Y direction, and the lower carriage is in sliding fit with the base;
The automatic pipe blanking device comprises a plurality of groups of blanking jacking devices, and the groups of blanking jacking devices are distributed at intervals along the X direction; when the pipe clamping and conveying device is driven by the driving unit to move along the X direction, the pipe clamping and conveying device sequentially passes over the plurality of groups of blanking jacking devices;
the control system calculates the length and the position of the finished product part in real time in the running process of the pipe cutting machine, compares the length and the position with preset values, and for the finished product part which is processed, if the length of the finished product part is smaller than or equal to the preset values, the finished product part directly falls down freely, falls into a second material receiving box through a material outlet of the pipe cutting machine, and if the length of the finished product part is larger than the preset values, controls an automatic pipe discharging device to convey the finished product part into the first material receiving box;
For finished parts after processing, if the length of the finished parts is greater than a preset value, the control system controls the automatic pipe blanking device to convey the finished parts to the first material receiving box, and the automatic pipe blanking device specifically comprises the following steps: when the pipe clamping and conveying device is in a retracted state, if the length of the finished product part is greater than a preset value, the pipe clamping and conveying device approaches to the cutting head to clamp the part, the pipe clamping and conveying device clamps the part and moves in a direction away from the cutting head, namely forward feeding, the blanking and jacking device automatically lifts and supports the part in the forward feeding process of the pipe clamping and conveying device, when the calculated part reaches a blanking position, the pipe clamping and conveying device loosens and is away from the part, the lower sliding frame component stretches out to the lower part of the blanking and jacking device, the blanking and jacking device descends and retracts, and a finished product falls into the first material receiving box along the lower sliding frame component;
The unloading jacking device automatically rises to hold the part in the forward feeding process of the pipe clamping and conveying device, and specifically comprises the following steps: when the pipe clamping conveying device clamps the part and feeds the part rightwards, the control system calculates the current coordinate position of the set point of the pipe clamping conveying device, compares the current coordinate position with the preset work starting coordinate threshold value of each group of blanking jacking devices, and outputs an instruction to control the corresponding blanking jacking device to lift and hold the part each time the current coordinate of the set point of the pipe clamping conveying device exceeds the preset work starting coordinate threshold value of the blanking jacking device;
When the part is calculated to reach the blanking position, the pipe clamping and conveying device is loosened and is far away from the part, and the pipe clamping and conveying device specifically comprises: when the pipe clamping and conveying device clamps the part to feed rightwards, the control system calculates the current coordinate position of the left end of the part and compares the current coordinate position with a preset blanking position coordinate threshold value, and if the current coordinate of the left end of the part is equal to or greater than the preset blanking position coordinate threshold value, the control system outputs an instruction to enable the pipe clamping and conveying device to loosen the part and move to a safe coordinate position.
2. The automatic pipe blanking device of a pipe cutting machine according to claim 1, wherein: the pipe cutting machine further comprises a second material receiving box and a discharging plate, wherein the discharging plate is obliquely arranged, the discharging plate is positioned below a discharging hole of the pipe cutting machine, and the lower side of the discharging plate is in butt joint with the second material receiving box; the discharging plate is positioned between the pipe cutting machine and the blanking jacking device.
3. The automatic pipe blanking device of a pipe cutting machine according to claim 1, wherein: two sides of the blanking jacking device are respectively provided with a feeding guide rail extending along the X direction; two sides of the pipe clamping and conveying device are respectively supported on the feeding guide rails at two sides of the blanking jacking device and are in sliding fit; the pipe clamping and conveying device spans over the blanking jacking device, a rack extending along the X direction is arranged on one side of the blanking jacking device, the driving unit is fixed on the pipe clamping and conveying device, a gear is fixed on an output shaft of the driving unit, and the gear is meshed with the rack; the feeding guide rail is arranged at the upper end of the machine tool, and the blanking jacking device is arranged in the machine tool; one end of the machine tool, which is far away from the discharge port of the pipe cutting machine, is provided with a limiting device for limiting the pipe clamping and conveying device.
4. The automatic pipe blanking device of a pipe cutting machine according to claim 1, wherein: the pipe clamping and conveying device adopts a chuck capable of feeding along the X direction.
5. The automatic pipe blanking device of a pipe cutting machine according to claim 1, wherein: the pipe lifting device comprises a pipe lifting wheel, wherein the pipe lifting wheel is arranged on a wheel shaft, two ends of the wheel shaft are respectively and rotatably supported on a lifting wheel mounting frame, and the lifting wheel mounting frame is fixedly connected with a driving shaft of the jacking driving device and used for driving the lifting wheel mounting frame to lift; the jacking driving device adopts a driving cylinder; grooves for supporting pipes with different pipe diameters are formed in the circumferential surface of the pipe lifting wheel to form a profiling wheel; the lifting wheel mounting frame is located in the fixing frame, side plates are arranged on two sides of the lifting wheel mounting frame, and sliding block guide rail pairs are arranged between the side plates on two sides of the lifting wheel mounting frame and the side plates on two sides of the fixing frame respectively.
6. The automatic pipe blanking device of a pipe cutting machine according to claim 1, wherein: the upper end of the lower sliding frame is provided with a supporting guide surface which is obliquely arranged, the lower side of the supporting guide surface of the lower sliding frame is used for being in butt joint with the first material receiving box, and the higher side of the supporting guide surface of the lower sliding frame is used for being in butt joint with the blanking jacking device.
7. An automatic pipe blanking method of a pipe cutting machine, characterized in that the automatic pipe blanking device of any one of claims 1 to 6 is adopted, comprising the following steps:
The control system calculates the length and the position of the finished product part in real time in the operation process of the pipe cutting machine, compares the length and the position with preset values, and for the finished product part which is processed, if the length of the finished product part is smaller than or equal to the preset values, the finished product part directly falls down freely, and falls into the second material receiving box through the discharge hole of the pipe cutting machine, and if the length of the finished product part is larger than the preset values, the control system controls the automatic pipe discharging device to convey the finished product part into the first material receiving box.
8. The automatic pipe blanking method of the pipe cutting machine according to claim 7, wherein:
For finished parts after processing, if the length of the finished parts is greater than a preset value, the control system controls the automatic pipe blanking device to convey the finished parts to the first material receiving box, and the automatic pipe blanking device specifically comprises the following steps: when the pipe clamping and conveying device is in a retracted state, if the length of the finished product part is greater than a preset value, the pipe clamping and conveying device approaches to the cutting head to clamp the part, the pipe clamping and conveying device clamps the part and moves in a direction away from the cutting head, namely forward feeding, the blanking and jacking device automatically lifts and supports the part in the forward feeding process of the pipe clamping and conveying device, when the calculated part reaches a blanking position, the pipe clamping and conveying device loosens and is away from the part, the lower sliding frame component stretches out to the lower part of the blanking and jacking device, the blanking and jacking device descends and retracts, and a finished product falls into the first material receiving box along the lower sliding frame component;
The unloading jacking device automatically rises to hold the part in the forward feeding process of the pipe clamping and conveying device, and specifically comprises the following steps: when the pipe clamping conveying device clamps the part and feeds the part rightwards, the control system calculates the current coordinate position of the set point of the pipe clamping conveying device, compares the current coordinate position with the preset work starting coordinate threshold value of each group of blanking jacking devices, and outputs an instruction to control the corresponding blanking jacking device to lift and hold the part each time the current coordinate of the set point of the pipe clamping conveying device exceeds the preset work starting coordinate threshold value of the blanking jacking device;
When the part is calculated to reach the blanking position, the pipe clamping and conveying device is loosened and is far away from the part, and the pipe clamping and conveying device specifically comprises: when the pipe clamping and conveying device clamps the part to feed rightwards, the control system calculates the current coordinate position of the left end of the part and compares the current coordinate position with a preset blanking position coordinate threshold value, and if the current coordinate of the left end of the part is equal to or greater than the preset blanking position coordinate threshold value, the control system outputs an instruction to enable the pipe clamping and conveying device to loosen the part and move to a safe coordinate position.
9. A laser pipe cutting machine which is characterized in that: the automatic pipe blanking device comprises a laser pipe cutting machine main body and the automatic pipe blanking device according to any one of claims 1 to 6, wherein the automatic pipe blanking device is arranged at a discharge hole of the laser pipe cutting machine main body.
10. The laser pipe cutter of claim 9, wherein: the laser pipe cutting machine comprises a laser pipe cutting machine body, a laser pipe cutting machine body and a laser pipe cutting machine, wherein the laser pipe cutting machine body comprises a machine tool extending along the X direction, and a cutting head, a supporting chuck and a clamping chuck capable of feeding along the X direction are arranged on the machine tool; the machine tool is also provided with a pipe jacking device, and the pipe jacking device is positioned between the clamping chuck and the supporting chuck;
The laser pipe cutting machine still includes control system, control system is connected with laser pipe cutting machine main part, the automatic unloader of tubular product, control system is used for calculating the length and the position of finished product part in real time at laser pipe cutting machine operation in-process, to the finished product part that processing was accomplished, if finished product part length is less than or equal to the default, then finished product part falls into the second through the discharge gate of pipe cutting machine and connects the workbin, if finished product part length is greater than the default, then control system control tubular product automatic unloader carries finished product part to first in the workbin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110189238.3A CN112775572B (en) | 2021-02-19 | Automatic pipe blanking device and method for laser pipe cutting machine and pipe cutting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110189238.3A CN112775572B (en) | 2021-02-19 | Automatic pipe blanking device and method for laser pipe cutting machine and pipe cutting machine |
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| Publication Number | Publication Date |
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| CN112775572A CN112775572A (en) | 2021-05-11 |
| CN112775572B true CN112775572B (en) | 2024-04-30 |
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