A bar sawing production line for adjustable length and diameter

Abstract

The present invention discloses a bar sawing production line with adjustable length and diameter, which relates to the technical field of bar sawing processing. It includes an unpacking table, a plurality of bar conveyor belts arranged on one side of the unpacking table. The output ends of the bar conveyor belts are provided with a plurality of bar positioning devices at intervals, and a roller path or a power roller path is arranged between adjacent bar positioning devices, and the roller path and the power roller path are arranged alternately; the sawing device is arranged on one side of the terminal bar positioning device, and a tail-end fine-tuning device and a bar turning device are arranged in sequence on the side of the sawing device opposite to the bar positioning device; a blanking rack and an electromagnetic truss are arranged on the side of the bar turning device. The present invention realizes the automatic processing of the whole process from loading, sawing to blanking; the bar loading and the positioning of bars with different sizes are realized through the unpacking table, bar conveyor belts, bar positioning devices and power roller paths; the sawing device is equipped with a minimum quantity lubrication device, which can meet the requirements of bar sawing processing and ensure the processing quality.

Description

Technical Field

[0001] The present invention relates to the technical field of bar sawing processing, and particularly to a bar sawing production line with adjustable length and diameter. Background Art

[0002] An aluminum bar is a kind of aluminum alloy product, which is made by mixing metals and other metals in a certain ratio and through a series of processing techniques, and finally cast into cylindrical bar materials with different diameters and lengths. After the bar materials are cast, they need to be cut, and finally, the bar materials are subjected to processing methods such as hot melting, extrusion, and forging to form the required profiles.

[0003] In the prior art, the invention patent with the application number 201510645354.6 discloses a multi-axis sawing machine with adjustable sawing path and sawing angle, including a main frame, on which a main moving frame, an upper moving frame, and a sawing mechanism are arranged. A product fixing mechanism opposite to the sawing mechanism is also arranged on the main frame. An angle adjustable component is arranged at the lower end of the product fixing mechanism, and four driving motors are arranged between the main moving frame, the upper moving frame, and the sawing mechanism. The sawing machine can realize three-dimensional adjustment in space through a servo motor, improving the utilization rate of the sawing equipment. However, this equipment relies on multiple servo motors to adjust the sawing path of the sawing equipment, but the excessive number of servo motors increases the cost of the sawing machine, and the production by the cooperation of multiple servo motors increases the control difficulty. The invention patent with the application number 201811454016.4 discloses a fixed-length flying saw sawing method and a sawing device for realizing this method. The sawing is carried out by driving a sawing machine to follow the material through a moving trolley. In this sawing method, when sawing bar materials with different diameters, the positioning and clamping of the bar materials are inaccurate, which will lead to problems such as increased surface roughness of the processed plane and insufficient accuracy of the sawing length.

[0004] In addition, during the processing of the current sawing production line, the micro-lubrication method adopts the pouring lubrication method. Due to the injection of a large amount of cutting fluid, the pouring lubrication method seriously affects the working environment, and the treatment cost is extremely high, increasing the cost. When loading materials, they are lifted into the workshop in bundles by a crane, and after being unpacked by workers, they are directly placed on the loading rack, which has potential safety hazards and insufficient control over the loading. During the sawing process, the pouring lubrication method is usually adopted, and the waste liquid treatment cost is high. Moreover, there is also a problem that the loading and unloading processes cannot be effectively connected. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a bar sawing production line with adjustable length and diameter, realizing the full-automatic processing of the sawing process from loading to sawing and then to unloading; realizing bar loading and positioning of bar materials with different sizes through an unpacking table, a bar conveyor belt, a bar positioning device, and a power roller table; installing a micro-lubrication device on the sawing device, which can meet the requirements of bar sawing processing and ensure the processing quality.

[0006] To achieve the above object, the present invention is realized by the following technical solutions:

[0007] In a first aspect, an embodiment of the present invention provides a bar sawing production line for adjustable length and diameter, including an unpacking table, a plurality of bar conveyors arranged on one side of the unpacking table. A plurality of bar positioning devices are arranged at intervals at the output end of the bar conveyor. A roller path or a powered roller path is arranged between adjacent bar positioning devices, and the roller path and the powered roller path are arranged alternately;

[0008] The sawing device is arranged on one side of the end bar positioning device. A tail trimming device and a bar turning device are sequentially arranged on the side of the sawing device opposite to the bar positioning device; A blanking rack and an electromagnetic truss are arranged on the side of the bar turning device.

[0009] In a second aspect, an embodiment of the present invention also provides a bar sawing production line for adjustable length and diameter, including an unpacking table, a plurality of bar conveyors arranged on one side of the unpacking table. A plurality of bar positioning devices are arranged at intervals at the output end of the bar conveyor. A roller path or a powered roller path is arranged between adjacent bar positioning devices, and the roller path and the powered roller path are arranged alternately;

[0010] The sawing device is arranged on one side of the end bar positioning device. A tail trimming device and a bar turning device are sequentially arranged on the side of the sawing device opposite to the bar positioning device; A blanking rack is arranged on the side of the bar turning device. One end of the blanking rack corresponds to the truss, and a rack conveyor roller path is arranged at the other end of the truss.

[0011] As a further implementation manner, the bar positioning device includes an overall bracket. A roller device is installed at one end of the overall bracket away from the bar conveyor. Another roller device is arranged above the roller device, and the upper roller device is connected to a cylinder through a lifting plate;

[0012] A bar clamping space is formed between the two roller devices.

[0013] As a further implementation manner, the roller device includes two symmetrically installed roller units. Each roller unit includes a roller and a base. The roller is rotatably installed on the base and is inclined; A V-shaped groove is formed between the two rollers.

[0014] As a further implementation manner, the roller path and the powered roller path respectively include a support frame and a plurality of V-shaped rollers installed on the support frame. The V-shaped rollers are arranged at intervals;

[0015] The powered roller path further includes a driving mechanism, and the driving mechanism is connected to one of the V-shaped rollers of the powered roller path.

[0016] As a further implementation, the sawing device includes a feeding roller table, a sawing machine bracket, a sawing machine, and a fixture. The feeding roller table is installed on the sawing machine bracket, and the sawing machine is slidably connected to the upper side of the sawing machine bracket; the fixture is arranged at the output end of the feeding roller table.

[0017] As a further implementation, the fixture includes a fixture base, at least two V-shaped seats are installed on the fixture base, V-shaped blocks are arranged above the V-shaped seats, and the V-shaped blocks are connected to a lifting mechanism; a blanking channel is arranged on one side of the fixture base.

[0018] As a further implementation, the sawing machine is installed with a minimum quantity lubrication device. The minimum quantity lubrication device includes a box body, an oil pump and an air pump arranged in the box body. An oil tank is installed on the top of the box body, and the oil tank is connected to the oil pump;

[0019] The bottom of the oil pump is connected to an oil delivery pipe and an output pipe. The oil delivery pipe and the output pipe are connected through an oil-gas mixing device. The oil-gas mixing device is connected to the air pump through an air delivery pipe, and the air pump is connected to a gas filter installed outside the box body.

[0020] As a further implementation, the tail stock fine adjustment device includes a bracket, a clamp body is slidably connected to the bracket, and the clamp body is connected to a horizontal movement mechanism; a lower V-shaped block is fixed on the clamp body, an upper V-shaped block is correspondingly arranged above the lower V-shaped block, and the upper V-shaped block is connected to an up-and-down movement mechanism;

[0021] Wherein, the up-and-down movement mechanism includes a cylinder and a connecting rod mechanism connected to the cylinder.

[0022] As a further implementation, the bar turning device includes a bracket, a plurality of fixed roller assemblies and a rotating roller assembly arranged on the surface of the bracket. The rotating roller assembly is rotatably connected to the bracket and is connected to a pushing mechanism;

[0023] An infrared displacement sensor is installed on one side of the rotating roller assembly away from the fixed roller assembly.

[0024] As a further implementation, the electromagnetic truss includes an overall frame, an X-axis frame installed on the lower side of the overall frame, and the two X-axis frames are arranged at intervals; each X-axis frame is slidably connected to a Z-axis frame, a Y-axis frame is slidably connected between the two Z-axis frames, and an electromagnet is installed at the bottom of the Y-axis frame.

[0025] As a further implementation, the truss includes an overall frame, an X-axis frame installed on the lower side of the overall frame, and the two X-axis frames are arranged at intervals; each X-axis frame is slidably connected to a Z-axis frame, a Y-axis frame is slidably connected between the two Z-axis frames, and a fork is installed at the bottom of the Y-axis frame.

[0026] As a further implementation, the rack conveyor roller path includes a bottom plate, a plurality of roller legs installed at the bottom of the bottom plate, two rows of rollers are arranged on the upper surface of the bottom plate along its length direction, and there is a gap between the two rows of rollers; a baffle is installed at one end of the bottom plate.

[0027] The beneficial effects of the present invention are as follows:

[0028] (1) The layout method of the production line of the present invention can realize the automatic processing of the whole process from loading, sawing to unloading; the bar loading and the positioning of bars of different sizes are realized through the unpacking table, bar conveyor belt, bar positioning device and power roller path; the sawing device is equipped with a minimum quantity lubrication device, which can meet the requirements of bar sawing processing and ensure the processing quality.

[0029] (2) The unpacking table and bar conveying device of the present invention can not only reduce the impact force during the unpacking of bundled bars, but also effectively control the bar conveying rhythm through sprockets, chains and bearing plates.

[0030] (3) The bar positioning device of the present invention includes upper and lower roller devices. The roller device consists of two rotatable rollers to form a V-shaped block structure. The self-positioning of bars with different diameters is realized by using the characteristics of the V-shaped block, and the friction during the conveying process is reduced; the power roller path, roller path and feeding roller path have the same structure, and the self-positioning and conveying of bars are realized by V-shaped rollers.

[0031] (4) The processing equipment of the present invention is a sawing machine equipped with a minimum quantity lubrication device. Different liquid supplies are carried out according to the sawing of bars of different sizes, which can not only ensure the sawing quality, but also reduce resource waste.

[0032] (5) A blanking method of the present invention includes a bar flipping device, a blanking rack and an electromagnetic truss. The bar flipping device is provided with a roller device and a flipping device. The roller device realizes the positioning and conveying of the bar, and the flipping device is conducive to realizing the overall horizontal flipping of the bar into the blanking rack; the electromagnetic truss is provided with a three-axis moving device to carry the bar moved to the end of the blanking rack into the finished product basket.

[0033] (6) Another blanking method of the present invention includes a bar flipping device, a blanking rack, a rack conveyor roller path and a truss. The bar flipping device fills the blanking rack with finished bars; the truss transports the upper half of the blanking rack and the finished bars to the finished product basket through a three-axis moving device, and transports the upper half of the rack conveyed by the rack conveyor roller path to the blanking rack; the efficient transportation of bars is completed through the overall cooperation of each part. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The specification drawings forming a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0035] Figure 1 It is the overall schematic diagram of the first embodiment of the present invention;

[0036] Figure 2 It is the overall top view of the first embodiment of the present invention;

[0037] Figure 3 It is the schematic diagram of the feeding device in the first embodiment of the present invention;

[0038] Figure 4 It is the side view of the bar conveyor belt in the first embodiment of the present invention;

[0039] Figure 5 It is the front view cross-section of the bar conveyor belt in the first embodiment of the present invention;

[0040] Figure 6 It is the front view of the bar positioning device in the first embodiment of the present invention;

[0041] Figure 7 It is the side view of the bar positioning device in the first embodiment of the present invention;

[0042] Figure 8 It is the side view cross-section of the roller device in the first embodiment of the present invention;

[0043] Figure 9 It is the schematic diagram of the power roller table in the first embodiment of the present invention;

[0044] Figure 10 It is the front view cross-section of the power roller table in the first embodiment of the present invention;

[0045] Figure 11 It is the schematic diagram of the electromagnetic truss in the first embodiment of the present invention;

[0046] Figure 12 It is the front view cross-section of the electromagnetic truss in the first embodiment of the present invention;

[0047] Figure 13 It is the bottom cross-section of the electromagnetic truss in the first embodiment of the present invention;

[0048] Figure 14 It is the schematic diagram of the discharging rack in the first embodiment of the present invention;

[0049] Figure 15 It is the front view of the discharging rack in the first embodiment of the present invention;

[0050] Figure 16 It is the schematic diagram of the bar flipping device in the first embodiment of the present invention;

[0051] Figure 17 It is the front view of the bar flipping device in the first embodiment of the present invention;

[0052] Figure 18 It is the schematic diagram of the tail end fine-tuning device in the first embodiment of the present invention;

[0053] Figure 19 It is the front view cross-sectional view of the material tail fine-tuning device in the first embodiment of the present invention;

[0054] Figure 20 It is the front view of the micro-lubrication device in the first embodiment of the present invention;

[0055] Figure 21 It is the schematic diagram of the sawing device in the first embodiment of the present invention;

[0056] Figure 22 It is the schematic diagram of the fixture in the first embodiment of the present invention;

[0057] Figure 23 It is the partial cross-sectional view of the fixture in the first embodiment of the present invention;

[0058] Figure 24 It is the overall schematic diagram of the second embodiment of the present invention;

[0059] Figure 25 It is the schematic diagram of the material rack conveying roller path in the second embodiment of the present invention;

[0060] Figure 26 It is the schematic diagram of the truss in the second embodiment of the present invention;

[0061] Figure 27 It is the front view of the truss in the second embodiment of the present invention;

[0062] Figure 28 It is the half cross-sectional view of the truss in the second embodiment of the present invention.

[0063] Wherein, I. unpacking table, II. bar conveyor belt, III. bar positioning device, IV. power roller path, V. roller path, VI. bar, VII. electromagnetic truss, VIII. finished product basket, IX. blanking rack, X. bar flipping device, XI. material tail fine-tuning device, XII. micro-lubrication device, XIII. waste basket, XIV. sawing device, XV. material rack conveying roller path, XVI. truss;

[0064] II-1, Base; II-2, Integral Bracket; II-3, Gear; II-4, Carrier Plate; II-5, Chain; II-6, Motor; II-7, Chain; II-8, Bracket; II-9, Gear Set; II-9-3, Shaft; II-9-4, Gear; II-9-7, Gear; II-10, Gear; III-1, Integral Bracket; III-2, Cylinder; III-3, Lifting Plate; III-4, Track; III-5, Slide Block Flange; III-6, Cylinder; III-7, Roller Device; III-7-2, Base; III-7-4, Bearing Block; III-7-7, Rotating Shaft; III-7-8, Roller; III-8, Slide Block Flange; III-9, Connecting Frame; III-10, Track; III-11, Arc Bracket; III-12, Roller Device;

[0065] IV-1, Roller Way Leg; IV-2, Motor; IV-3, Driving Gear; IV-4, Chain; IV-5, Shaft; IV-6, Driven Gear; IV-7, V-shaped Roller; IV-8, Shaft; IV-9, Support Plate; IV-10, Bearing Block; IV-12, Bushing; IV-13, Bushing; IV-14, End Cover; VII-1, Integral Frame; VII-2, Electromagnet; VII-3, Y-axis Bracket; VII-4, Slide Block Flange; VII-5, Track; VII-6, X-axis Bracket; VII-7, Connecting Frame; VII-8, Track; VII-9, Z-axis Bracket; VII-10, Motor; VII-11, Lead Screw; VII-12, Connecting Block; VII-13, Bracket; VII-14, Connecting Frame; VII-15, V-shaped Block; VII-16, Motor;

[0066] IX-1, Integral Frame; IX-2, Trapezoidal Baffle; IX-3, Bar Stock Carrier Plate; IX-4, Connecting Plate; IX-5, Connecting Plate; IX-6, Positioning Pin; IX-7, Inclined Plane Carrier Plate; X-1, Bracket; X-2, Infrared Displacement Sensor; X-3, Second Link; X-4, Roller Device; X-5, Third Link; X-6, Cylinder; X-7, First Link; X-9, Support; X-10, Roller Device; X-11, Base; X-12, Rotary Support; X-13, Base;

[0067] XI-1, support; XI-2, cylinder; XI-3, mounting plate; XI-4, fourth connecting rod; XI-5, fifth connecting rod; XI-6, sixth connecting rod; XI-7, upper V-block; XI-8, wear-resistant material; XI-9, lower V-block; XI-11, track; XI-12, cylinder; XI-13, clamp body; XI-14, slider flange; XII-1, gas filter; XII-2, pressure gauge; XII-3, air pump; XII-4, box body; XII-5, fuel tank; XII-6, oil pump; XII-7, oil delivery pipe; XII-8, output pipe; XII-9, oil-gas mixing device; XII-10, gas delivery pipe;

[0068] XIV-1, feeding roller table; XIV-2, sawing machine support; XIV-3, sawing machine; XIV-4, fixture, XIV-4-1, fixture base; XIV-4-2, wear-resistant material; XIV-4-3, front V-block seat; XIV-4-4, cylinder seat; XIV-4-5, pressing strip; XIV-4-6, cylinder; XIV-4-7, pressing plate; XIV-4-8, front V-block; XIV-4-9, rear V-block; XIV-4-10, rear V-block seat; XIV-4-11, blanking channel; XV-1, roller table leg; XV-2, bottom plate; XV-3, inner mounting plate; XV-4, roller; XV-5, outer mounting plate; XV-6, baffle;

[0069] XVI-1, integral frame; XVI-2, track; XVI-3, support; XVI-4, X-axis frame; XVI-5, slider flange; XVI-6, cylinder; XVI-7, track; XVI-8, motor; XVI-9, connecting block; XVI-10, fork tool; XVI-11, Z-axis frame; XVI-12, Y-axis frame; XVI-13, connecting frame; XVI-14, lead screw; XVI-15, track; XVI-16, slider flange. Specific embodiments

[0070] Embodiment 1:

[0071] This embodiment provides a bar sawing production line with adjustable length and diameter, as shown in Figure 1 and Figure 2 It includes unpacking table I, bar conveyor belt II, bar positioning device III, power roller table IV, roller table V, bar VI, electromagnetic truss VII, finished product basket VIII, blanking rack IX, bar flipping device X, tail end fine-tuning device XI, micro-lubrication device XII, and sawing device XIV;

[0072] Among them, the unpacking table I, the bar conveyor belt II, the bar positioning device III, the power roller path IV and the roller path V constitute the feeding system. At least two bar conveyor belts II are arranged on one side of the unpacking table I. A plurality of bar positioning devices III are arranged at intervals at the output end of the bar conveyor belt II. A roller path V or a power roller path IV is arranged between adjacent bar positioning devices III, and the roller path V and the power roller path IV are arranged alternately.

[0073] At the output end of the feeding system, a sawing device XIV, a tail trimming device XI, and a bar flipping device X are arranged in sequence. A blanking rack IX and an electromagnetic truss VII are arranged in sequence on one side of the bar flipping device X. A finished product basket VIII is arranged below the electromagnetic truss VII; the electromagnetic truss VII, the finished product basket VIII, the blanking rack IX, and the bar flipping device X constitute the blanking system; the tail trimming device XI, the micro-lubrication device XIII, and the sawing device XIV constitute the bar sawing process under the micro-lubrication condition.

[0074] The feeding system is as Figure 3 shown. The roller path V and the power roller path IV are used to convey the bar VI. The bar VI is a long cylindrical metal material. It enters the workshop in bundles by a crane and is placed on the unpacking table I. Among them, the transmission direction of the bar conveyor belt II is perpendicular to the length direction of the unpacking table I, and the transmission direction of the roller path V is perpendicular to the transmission direction of the bar conveyor belt II.

[0075] The impact force during the unpacking of the bar VI is borne by the unpacking table I. The upper plane of the unpacking table I is set as an inclined plane. After unpacking, the bar VI lies flat on the surface of the unpacking table I under the action of gravity and rolls onto the bar conveyor belt II. The bar conveyor belt II conveys the bar VI to the bar positioning device III. After positioning, it is conveyed to the sawing position of the sawing device XIV through the power roller path IV and the roller path V.

[0076] As Figure 4 and Figure 5 shown, the bar conveyor belt II includes a base II-1, an integral bracket II-2, a gear II-3, a bearing plate II-4, a chain II-5, a motor II-6, a chain II-7, a bracket II-8, a gear set II-9, and a gear II-10. The base II-1 is installed at the bottom of the integral bracket II-2 and is connected to the ground, and the rest of the components are installed on the integral bracket II-2.

[0077] Gear II-3 is a driven gear and is connected to the driving gear II-9-7 of gear set II-9 by chain II-5. A plurality of carrier plates II-4 are sequentially fixed on the surface of chain II-5. In this embodiment, carrier plate II-4 is a rectangular plate. Gear II-10 is connected to gear II-9-4 in gear set II-9 by chain II-7. Gear II-9-4 is connected to driving gear II-9-7 by shaft II-9-3. Gear II-10 is connected to motor II-6. By driving gear II-10 to rotate with motor II-6, the movement of carrier plate II-4 is realized under the action of chain II-7, gear set II-9 and chain II-5, thereby driving the bar stock VI on carrier plate II-4 and completing the transportation of the metal bar stock.

[0078] As Figures 6 - 7 shown, the bar stock positioning device III includes an overall bracket III-1, a cylinder III-2, a lifting plate III-3, a cylinder III-6, a roller device III-7, a connecting frame III-9, a roller device III-12, etc. The overall bracket III-1 is a rectangular frame structure. Cylinder III-2 is installed on the overall bracket III-1. The cylinder rod is threadedly connected to the lifting plate III-3. The lifting plate III-3 is located on one side of the overall bracket III-1. Rail III-4 is installed inside the lifting plate III-3 (the side close to the overall bracket III-1). Rail III-4 and the slider flange III-5 installed on the overall bracket III-1 form a slide rail. The lifting of the lifting plate III-3 is realized by the expansion and contraction of cylinder III-2.

[0079] The outside of the lifting plate III-3 is connected to the connecting frame III-9 by a cylinder III-6. Rail III-10 is installed inside the connecting frame III-9. Rail III-10 and the slider flange III-8 installed on the lifting platform III-3 form a slide rail. The lifting of the connecting frame III-9 is realized by the expansion and contraction of cylinder III-6.

[0080] The roller device III-12 is installed at the bottom of the connecting frame III-9. The roller device III-12 corresponds to the upper part of one end of the overall bracket III-11. The roller device III-7 opposite to the roller device III-12 is installed on the top of the overall bracket III-11. A bar stock VI accommodation space is formed between the roller device III-7 and the roller device III-12.

[0081] As Figure 8As shown in the figure, the roller device III-7 includes two symmetrically installed roller units. Each roller unit includes a roller III-7-8 and a base III-7-2. In this embodiment, the cross-section of the base III-7-2 is a right triangle structure to form an inclined surface. The inclined surfaces of the two roller units are arranged opposite to each other. The roller III-7-8 is installed on the inclined surface through a bearing block III-7-4, and the roller III-7-8 is connected to the bearing block III-7-4 through a rotating shaft III-7-7 at its center. The two rollers III-7-8 form a V-shaped structure to achieve self-positioning of the outer circle of the bar VI.

[0082] The structure of the roller device III-12 is the same as that of the roller device III-7, and its rollers also form a V-shaped structure. The difference between the two is that the size of the rollers of the roller device III-12 is smaller than the size of the roller III-7-8 of the roller device III-7. Through the cooperation of the roller device III-7 and the roller device III-12, not only the bar VI is positioned, but also the friction is reduced during the axial transportation of the bar VI.

[0083] An arc-shaped frame III-11 is installed on the top of the overall bracket III-1. The cross-section of the arc-shaped frame III-11 is circular arc and extends along the length direction of the overall bracket III-1. The bar VI enters the bar positioning device III through the bar conveyor belt II and first contacts the lifting plate III-3 through the arc-shaped frame III-11. Since the arc-shaped frame III-11 is circular arc, the friction of the bar VI moving along the bar positioning device III is reduced.

[0084] The contraction of the cylinder rod of the cylinder III-6 drives the connecting frame III-9 and the roller device III-12 to descend, and positioning is carried out through the V-shaped surface of the roller device III-12. After positioning, the contraction of the cylinder rod of the cylinder III-2 drives the bar VI to descend and contact the roller device III-7.

[0085] As Figure 9 shown, the power roller table IV includes a support frame, V-shaped rollers IV-7 and a drive mechanism. The support frame is composed of a support plate IV-9 and a plurality of roller legs IV-1 installed at the bottom of the support plate IV-9. A plurality of V-shaped rollers IV-7 are installed on the surface of the support plate IV-9. The V-shaped rollers IV-7 are connected through a shaft IV-8, and the V-shaped rollers IV-7 are distributed at intervals along the length direction of the support plate IV-9.

[0086] The V-shaped roller IV-7 at one end is connected to the drive mechanism. The drive mechanism in this embodiment adopts a chain drive mechanism, that is, it includes a motor IV-2, a driving gear IV-3 connected to the motor IV-2. The driving gear IV-3 is connected to a driven gear IV-6 through a chain IV-4, and the driven gear IV-6 is connected to a bearing block IV-10 through a shaft IV-5.

[0087] As Figure 10 shown, the axial movement of the driven gear IV-6 is restricted by the end cover IV-4 and the shaft shoulder, and the axial movement of the bearing is restricted by the sleeve IV-13 and the shaft shoulder; the axial movement of the V-shaped roller IV-7 is restricted by the sleeve IV-12 and the shaft shoulder.

[0088] The roller path V is similar in structure to the power roller path IV, except that it has no power device and conveys the bar stock VI as a driven roller path. After the bar stock positioning device III positions the bar stock VI, the lifting plate III-3 descends to make the bar stock VI fall onto the power roller path IV, and the bar stock VI is axially conveyed by the power roller path IV and the roller path V.

[0089] As Figure 21 shown, the sawing device XIV includes a feeding roller path XIV-1, a sawing machine bracket XIV-2, a sawing machine XIV-3, and a fixture XIV-4. The structure of the feeding roller path XIV-1 is the same as that of the power roller path IV, and it is installed on the sawing machine bracket XIV and connected to the feeding system. The sawing machine XIV-3 is slidably connected to the slide rail on the sawing machine bracket XIV-2, and the sawing machine XIV-3 is located on one side of the feeding roller path XIV-1; the sawing feed of the sawing machine XIV-3 is controlled by an oil cylinder. The fixture XIV-4 is installed on the sawing machine bracket XIV-2 and is located at the output end of the feeding roller path XIV-1 to clamp the bar stock VI during sawing.

[0090] Specifically, as Figure 22 and Figure 23 shown, the fixture XIV-4 includes a fixture base XIV-4-1, a cylinder XIV-4-6, a pressing plate XIV-4-7, a front V-block XIV-4-8, a rear V-block XIV-4-9, a blanking channel XIV-4-11, etc. The fixture base XIV-4-1 is installed on the sawing machine bracket XIV-2, the cylinder seat XIV-4-4 is installed on the top of the fixture base XIV-4-1, the cylinder XIV-4-6 is installed on the top of the fixture base XIV-4-1, the cylinder rod is connected to the pressing plate XIV-4-7, and the pressure bar XIV-4-5 is installed on the cylinder seat XIV-4-4 to form an orbital groove for the sliding of the pressing plate XIV-4-7. The cylinder XIV-4-6, the pressing plate XIV-4-7, and the pressure bar XIV-4-5 form a lifting mechanism.

[0091] The bottom end of the pressing plate XIV-4-7 is connected to the front V-shaped block XIV-4-8 and the rear V-shaped block XIV-4-9. The front V-shaped block XIV-4-8 and the rear V-shaped block XIV-4-9 are arranged at intervals, and the V-shaped openings of both face downward. Wear-resistant materials XIV-4-2 are inlaid on the surfaces of the front V-shaped block XIV-4-8 and the rear V-shaped block XIV-4-9. The front V-shaped seat XIV-4-3 and the rear V-shaped seat XIV-4-10 are installed on the fixture seat XIV-4-1, and the front V-shaped seat XIV-4-3 corresponds to the front V-shaped block XIV-4-8, and the rear V-shaped seat XIV-4-10 corresponds to the rear V-shaped block XIV-4-9. The V-shaped openings of the front V-shaped seat XIV-4-3 and the rear V-shaped seat XIV-4-10 face upward, and wear-resistant materials XIV-4-2 are inlaid on the surfaces.

[0092] An inclined blanking channel XIV-4-11 is arranged on one side of the fixture seat XIV-4-1, and the blanking channel XIV-4-11 is arranged along the layout direction of the V-shaped seat; the top end of the blanking channel XIV-4-11 is fixed to the fixture seat XIV-4-1. The blanking channel XIV-4-11 is composed of an inclined plate and baffles fixed on both sides of the inclined plate.

[0093] During sawing, the bar VI is transported by the feeding roller table XIV-1. After the infrared displacement sensor X-2 determines the position of the bar VI, the air cylinder XIV-4-6 is started, and the pressing plate XIV-4-7 descends to clamp the bar VI. Since the front V-shaped seat XIV-4-3, the front V-shaped block XIV-4-8, the rear V-shaped seat XIV-4-10, and the rear V-shaped block XIV-4-9 are all V-shaped, they can adaptively clamp bars VI with different diameters. Before clamping, various roller devices are used for self-positioning of bars VI with different diameters.

[0094] The minimum quantity lubrication device XII is installed on the sawing machine XIV-3 to provide a minimum quantity lubrication working condition when the sawing machine XIV-3 is working. As Figure 20 shown, the minimum quantity lubrication device XII includes a gas filter XII-1, an air pump XII-3, a box XII-4, an oil tank XII-5, an oil pump XII-6, etc. The oil pump XII-6 and the air pump XII-3 are installed in the box XII-4, the oil tank XII-5 is installed on the top of the box XII-4, and the oil tank XII-5 is connected to the oil pump XII-6.

[0095] The bottom of the oil pump XII-6 is connected to the oil delivery pipe XII-7 and the output pipe XII-8. The oil delivery pipe XII-7 and the output pipe XII-8 are connected through the oil-gas mixing device XII-9, and the oil-gas mixing device XII-9 can adopt a three-way valve; the air pump XII-3 transports the pressurized gas to the oil-gas mixing device XII-9 through the air delivery pipe XII-10. The oil-gas mixing device XII-9 is connected to the air pump XII-3 through the air delivery pipe XII-10. The air pump XII-3 is connected to the gas filter XII-1 installed outside the box XII-4, and the gas filter XII-1 is equipped with a pressure gauge XII-2 for detecting the system air pressure.

[0096] The trace lubricating oil in the fuel tank XII-5 first enters the oil pump XII-6 through the oil delivery pipe XII-7. The oil pump XII-6 gives power to transport the oil to the oil-gas mixing device XII-9, mixes the trace lubricating oil with the gas and sprays it into the working area to achieve a lubricating effect on the work.

[0097] The minimum quantity lubrication technology is a kind of near-dry lubrication technology. The cutting fluid it uses is green vegetable oil-based, which not only does not harm the human body, but also does not pollute the environment and can be biodegradable. The minimum quantity lubrication method can meet the requirements of sawing processing, ensure the processing quality and cause no pollution.

[0098] Such as Figure 18 and Figure 19 As shown in the figure, when the bar VI is sawed to the tail, the tail stock fine-tuning device XI performs the final fine-tuning on the bar. The tail stock fine-tuning device XI includes a bracket XI-1, an upper V-block XI-7, a lower V-block XI-9, a horizontal movement mechanism, and an up-down movement mechanism. The horizontal movement mechanism includes a cylinder XI-12 and a track XI-11. The track XI-11 is installed on the bracket XI-1. The track XI-11 installs the clamp body XI-13 through the slider flange XI-14. One side of the clamp body XI-13 is connected to the cylinder XI-12, and the cylinder XI-12 drives the clamp body XI-13 to move along the length direction of the track XI-11. The setting direction of the track XI-11 is consistent with the transmission direction of the feeding system.

[0099] One side of the clamp body XI-13 is fixed with a lower V-block XI-9. An upper V-block XI-7 is arranged above the lower V-block XI-9. The V-shaped openings of the upper V-block XI-7 and the lower V-block XI-9 face each other, and wear-resistant materials XI-8 are distributed on their surfaces to reduce surface wear during the processing.

[0100] The upper V-shaped block XI-7 is connected to the up-and-down moving mechanism. The up-and-down moving mechanism includes a cylinder XI-2 and a linkage mechanism. The cylinder XI-2 is connected to the other side of the clamp body XI-13 through a mounting plate XI-3. The linkage mechanism includes a fourth link XI-4 connected to the cylinder XI-2. One end of the fourth link XI-4 is hinged to one end of a fifth link XI-5, and the other end of the fifth link XI-5 is hinged to a sixth link XI-6. In this embodiment, the sixth link XI-6 is of an L-shaped structure, and one end of the sixth link XI-6 is fixed to the upper V-shaped block XI-7; the fifth link XI-5 is inclined.

[0101] As Figure 16 and Figure 17 shown, the bar turning device X includes a bracket X-1, an infrared displacement sensor X-2, a rotating roller assembly, and a fixed roller assembly. Multiple groups of the rotating roller assembly and the fixed roller assembly are respectively provided. In this embodiment, three groups of the rotating roller assembly are provided, and six groups of the fixed roller assembly are provided; it can be understood that in other embodiments, the numbers of the rotating roller assembly and the fixed roller assembly can be adaptively adjusted according to the length of the bar.

[0102] The rotating roller assembly and the fixed roller assembly are arranged at intervals along the length direction of the bracket X-1. The fixed roller assembly is arranged on one side of the rotating roller assembly, and the infrared displacement sensor X-2 is installed on the other side of the rotating roller assembly for detecting the position of the finished bar VI. The fixed roller assembly includes a base X-11 and a roller device X-10 installed on the base X-11; the rotating roller assembly includes a rotating support X-12 and a roller device X-4 installed on the rotating support X-12. The rotating support X-12 is connected to a pushing mechanism, and one end of the bottom of the rotating support X-12 is rotatably connected to a base X-13. The base X-13 is fixed to the bracket X-1; the angle between the rotating support X-12 and the upper surface of the bracket XI-1 can be changed through the pushing mechanism.

[0103] The structures of the roller device X-4 and the roller device X-10 are the same as that of the roller device III-7, but the sizes are different.

[0104] The pushing mechanism includes a cylinder XI-2 and a linkage mechanism. The cylinder XI-2 is connected to each rotating support X-12 through the linkage mechanism. The linkage mechanism includes a first link X-7 connected to the cylinder rod. The first link X-7 is coaxially arranged with the cylinder rod. Each rotating support X-12 is respectively connected to a second link X-3, that is, the second link X-3 corresponds to the rotating support X-12 one by one, and the second link X-3 is hinged to the rotating support X-12.

[0105] The second link X-3 in the middle is hinged to the first link X-7, and the second link X-3 on both sides of this second link X-3 are respectively connected by a third link X-5. The cylinder X-6 provides power for the bar turning device X. During operation, after the bar VI is sawed, it axially enters the bar turning device X, enters the roller device X-4 under the anti-friction effect of the roller device X-10, and the infrared displacement sensor X-2 determines the position. After the bar VI is reversed, it can enter the blanking rack IX. The infrared displacement sensor X-2 sends a signal to the total control system, driving the cylinder X-6 to act through the linkage mechanism, causing the roller device X-4 to turn. After turning to a certain angle, the bar VI enters the blanking rack IX under the action of gravity.

[0106] The blanking rack IX is located on one side of the bar turning device X, as Figure 14 and Figure 15 shown. The blanking rack IX includes an overall frame IX-1, a trapezoidal baffle IX-2, a bar bearing plate IX-3, a connecting plate IX-4, a connecting plate IX-5, a positioning pin IX-6, and an inclined plane bearing plate IX-7. The blanking rack IX is divided into an upper part and a lower part, and it is a transition device during the transportation of the finished bar VI.

[0107] The inclined plane bearing plate IX-7 is installed on the top of the overall frame IX-1, and the top surface of the inclined plane bearing plate IX-7 is an inclined surface. The upper part of the blanking rack IX is arranged on the inclined plane bearing plate IX-7, making the upper part of the blanking rack IX placed obliquely, facilitating the finished bar VI to roll to the end of the blanking rack IX under the action of gravity.

[0108] The upper part of the blanking rack IX includes a connecting plate IX-4 and a bar bearing plate IX-3. Taking the arrangement direction of the connecting plate IX-4 as the transverse direction and the arrangement direction of the bar bearing plate IX-3 as the longitudinal direction, a grid structure is formed by a plurality of connecting plates IX-4 and bar bearing plates IX-3. The bar bearing plate IX-3 is used to carry and transport the finished bar VI. One end of the bar bearing plate IX-3 has a step, and the steps of each bar bearing plate IX-3 are connected by a connecting plate IX-5. The trapezoidal baffle IX-2 is installed at the end of the overall frame IX-1 and is connected to the inclined plane bearing plate IX-7, supporting the bottom surface of the connecting plate IX-5.

[0109] A plurality of positioning pins IX-6 are installed on one side of the blanking rack I. The positioning pins IX-6 are spaced along the length direction of the bar bearing plate IX-3. The positioning pins IX-6 form the lower part of the blanking rack IX, and the upper part of the blanking rack IX is positioned by the trapezoidal baffle IX-2 and the positioning pins IX-6.

[0110] The electromagnetic truss VII is located on one side of the blanking rack I, as Figures 11 - 13As shown, the electromagnetic truss VII includes an integral frame VII-1, an electromagnet VII-2, a Y-axis frame VII-3, a slider flange VII-4, a track VII-5, an X-axis frame VII-6, a connecting frame VII-7, a track VII-8, a Z-axis frame VII-9, a motor VII-10, a lead screw VII-11, a connecting block VII-12, a bracket VII-13, a connecting frame VII-14, a V-block VII-15, and a motor VII-16.

[0111] Two connecting frames VII-7 are installed at the bottom of the integral frame VII-1 at intervals, and the connecting frames VII-7 extend along the X-axis direction; the X-axis frame VII-6 is fixed at the bottom of the connecting frame VII-7, and two tracks VII-5 are symmetrically installed on both sides of the X-axis frame VII-6. The two tracks VII-5 are slidably connected to the Z-axis frame VII-9, and the Z-axis frame VII-9 can move along the X-axis. The Y-axis frame VII-3 is installed at the bottom of the Z-axis frame VII-9, and a slide rail for Z-axis lifting is formed between the two spaced Y-axis frames VII-3 through the cooperation of the track VII-8 and the slider flange VII-4.

[0112] One of the X-axis frames VII-6 is connected to the bracket VII-13, and a lead screw transmission mechanism is installed through the bracket VII-13. The lead screw transmission mechanism includes a motor VII-10 and a lead screw VII-11 connected to the motor VII-10. The connecting block VII-12 is installed on the Z-axis frame VII-9 and performs screw transmission with the lead screw VII-11.

[0113] As Figure 12 shown, the V-block VII-15 is installed at the bottom of the Y-axis frame VII-3 through the connecting frame VII-14, and the electromagnet VII-2 is installed on the upper surface of the V-block VII-15. The Z-axis lifting process of the Y-axis frame VII-3 is realized through the lead screw transmission mechanism, and the power is provided by the motor VII-16.

[0114] The electromagnetic truss VII transports the bar VI conveyed by the blanking frame IX. First, the electromagnet VII-2 is energized to apply magnetic force to the V-block VII-15 to adsorb the bar VI, and the V-face positions the outer circle of the bar. The device moves along the X-axis through the motor VII-10 and moves above the finished product basket. The motor VII-16 drives the device to descend along the Z-axis, the electromagnet VII-2 is powered off, and the bar VI is placed into the finished product basket VIII. Through the operation cooperation of the motor VII-16 and the motor VII-10, the grasping position of the electromagnetic truss VII is run to the initial position.

[0115] The working principle of this embodiment is:

[0116] The crane places the bundled bar stock VI onto the unpacking table I, unpacks the bundled bar stock VI, and the bar stock VI is laid flat on the unpacking table I. Through the inclined plane of the unpacking table I, the bar stock VI rolls by gravity onto the bar conveyor belt II. The motor II-6 of the bar conveyor belt II drives the bearing plate II-4 to rotate through the sprocket chain. The rotating bearing plate II-4 drives the bar stock VI to be conveyed towards the bar positioning device III. A sensor is installed at the end of the bar conveying device II. After detecting that a bar stock VI passes through the bar conveying device II and enters the bar positioning device III, the motor II-6 stops operating. After the previous bar stock VI is sawed, the motor II-6 restarts to transport the next bar stock VI and repeats the above operation process.

[0117] The bar stock VI enters the bar positioning device III and enters the upper surface of the lifting plate III-3 through the arc-shaped frame III-11; the air cylinder III-6 starts to drive the roller device III-12 to position the bar stock VI; after positioning, the air cylinder III-2 starts and the lifting plate III-3 descends, and the bar stock VI contacts and is positioned with the roller device III-7. The slopes of the inclined surfaces of the two rollers III-7-8 of the roller device III-7 are the same as the slopes of the inclined surfaces of the V-shaped rollers IV-7 of the power roller path IV. After the bar stock VI descends, it contacts and is positioned with the surfaces of the V-shaped rollers IV-7 of the power roller path IV and the roller path V; after positioning, the motor IV-2 starts and drives the power through the sprocket chain device to drive the bar stock VI to perform axial feeding.

[0118] Under the action of the power roller path IV, the bar stock VI enters the feeding roller path XIV-1 of the sawing device XIV, and the feeding roller path XIV-1 conveys the bar stock VI; at the end of the sawing device XIV, the displacement sensor contacts the head end of the bar stock VI, and the motors of the feeding roller path XIV-1 and the power roller path IV stop operating. The air cylinder XIV-4-6 of the clamp XIV-4 starts, and the front V-shaped block XIV-4-8 and the rear V-shaped block XIV-4-9 press down, and the clamp XIV-4 clamps the bar stock VI. After clamping, the sawing machine XIV-3 saws the head of the bar stock VI; after the head is sawed, the displacement sensor moves away, the air cylinder XIV-4-6 starts, the front V-shaped block XIV-4-8 and the rear V-shaped block XIV-4-9 lift, the motors of the feeding roller path XIV-1 and the power roller path IV start, the bar stock VI moves axially, and the head enters the waste basket XIII through the blanking channel XIV-4-11.

[0119] The infrared displacement sensor X-2 installed at the end of the bar turning device X detects the displacement of the bar VI during the conveying process. After the head of the bar is removed, the bar VI advances and enters the bar turning device X, and the roller device X-10 bears the bar VI. The bar VI moves forward with minimal friction under the rolling action of the rollers of the roller device X-10. After the infrared displacement sensor X-2 detects the length to be sawed of the moving bar VI, the above-mentioned movement is repeated to clamp and saw the bar VI; after sawing is completed, the other bar VI after sawing continues to advance and pushes the finished bar forward.

[0120] When the finished bar enters the roller device X-4, the infrared displacement sensor X-2 detects that the bar VI has reached the sawing length, and the cylinder X-6 is activated to turn the finished bar so that the finished bar enters the blanking rack IX and rolls to the end by gravity. After the bar VI is sawed to the tail of the material and the feeding roller table XIV-1 cannot convey it, it is adjusted by the tail stock fine-tuning device XI. First, the cylinder XI-2 drives the upper V-shaped block XI-7 to descend through the linkage mechanism to clamp the bar with the lower V-shaped block XI-9; then, the bar VI is fine-tuned by the cylinder XI-12 to make the bar VI enter the specified position, and the sawing device XIV performs sawing, and a single bar VI is sawed. After sawing is completed, the next bar starts feeding through the feeding device and repeats the above process.

[0121] The electromagnetic truss VII transports the bar VI. First, the gripper of the electromagnetic truss drives the Z-axis to descend through the motor VII-16 to adsorb the finished bar and position the finished bar through the V-shaped surface; after adsorption, the gripper Z-axis rises. After rising to the specified position, the motor VII-10 is started, and the X-axis is transported through the ball screw mechanism to reach above the finished product basket VIII. The gripper Z-axis descends to place the bar VI into the finished product basket VIII. The finished bars are placed in multiple layers and misaligned in the finished product basket VIII through the control system. After being filled, the AGV cart under the finished product basket VIII drives out of the workshop according to the electromagnetic track and loads an empty finished product basket VIII into the workshop.

[0122] Embodiment 2:

[0123] This embodiment provides a bar sawing production line with adjustable length and diameter. The difference from Embodiment 1 lies in the layout of the blanking system, as Figure 24 shown, the blanking system includes a finished product basket VIII, a blanking rack IX, a bar turning device X, a tail stock fine-tuning device XI, a rack conveying roller table XV, and a truss XVI. The truss XVI is arranged on one side of the bar turning device X. The blanking rack IX is arranged below this end of the truss XVI. The finished product basket VIII is arranged on one side of the blanking rack IX. The rack conveying roller table XV is arranged below the end of the truss XVI far from the bar turning device X.

[0124] As Figure 25 shown, the rack conveyor roller path XV includes a bottom plate XV-2 and a plurality of roller legs XV-1 installed at the bottom of the bottom plate XV-2. Two rows of rollers XV-4 are arranged on the upper surface of the bottom plate XV-2 along its length direction. An outer mounting plate XV-5 is arranged outside the rollers XV-4, and an inner mounting plate XV-3 is arranged inside. The outer mounting plate XV-5 and the inner mounting plate XV-3 are arranged along the length direction of the bottom plate XV-2 and are perpendicular to the bottom plate XV-2. Each roller XV-4 is rotatably connected to the outer mounting plate XV-5 and the inner mounting plate XV-3.

[0125] A baffle XV-6 is installed at one end of the bottom plate XV-2, and the roller installation areas formed by the outer mounting plate XV-5 and the inner mounting plate XV-3 respectively correspond to a baffle XV-6. The rollers XV-4 are used to transport the upper half of the blanking rack IX. The baffle XV-6 is installed at the end of the bottom plate XV-2 to position the upper half of the blanking rack IX. A gap is left in the middle between the two inner mounting plates XV-3 to facilitate the truss XVI to carry the upper half of the blanking rack IX.

[0126] The difference between the truss XVI and the electromagnetic truss VII in the first embodiment is that the truss XVI is installed with two sets of fork tools XVI-10 oppositely. Specifically, as Figures 26 - 28 shown, the truss XVI includes an integral frame XVI-1, a track XVI-2, a bracket XVI-3, an X-axis frame XVI-4, a slider flange XVI-5, a cylinder XVI-6, a track XVI-7, a motor XVI-8, a connecting block XVI-9, a fork tool XVI-10, a Z-axis frame XVI-11, a Y-axis frame XVI-12, a connecting frame XVI-13, a lead screw XVI-14, a track XVI-15, and a slider flange XVI-16.

[0127] The X-axis frame XVI-4 is connected to the overall frame XVI-1 through a connector, the track XVI-2 is installed on both sides of the X-axis frame XVI-4 to form the track of the Z-axis frame XVI-11, and the bracket XVI-3 is installed on the overall frame XVI-1. The slider flange XVI-5 is installed on the Y-axis frame XVI-12, corresponding to the track XVI-7 installed on the Z-axis frame XVI-11. The motor XVI-8 is installed on the bracket XVI-3 and connected to the screw XVI-14. The connecting block XVI-9 is installed on the Z-axis frame XVI-11, transmitting the power transmitted to the screw XVI by the motor XVI-8 to the Z-axis frame XVI-11. The cylinder XVI-6 is installed on the Y-axis frame XVI-12, and the cylinder rod is connected to the connecting frame XVI-13, and the connecting frame XVI-13 connects the forks XVI-10 on both sides. The rail XVI-15 is mounted on the Y-axis frame XVI-12, corresponding to the slider flange XVI-16 mounted on the fork XVI-10. The cylinder XVI-6, the fork XVI-10, the Y-axis frame XVI-12 and the connecting frame XVI-13 form the gripper of the truss XVI. The truss XVI is equipped with two corresponding forks XVI-10 for inserting and removing the upper part of the unloading rack IX.

[0128] The fork XVI-10 only needs to be able to perform the forking function. In the present embodiment, the fork XVI-10 is composed of a plurality of horizontal plates.

[0129] The unloading of the present embodiment is the same as the turning over of the finished bars by the bar turning device X in the first embodiment, but the finished bars wait after entering the unloading rack XI; when the unloading rack XI is full of multiple finished bars, the upper part of the unloading rack XI and multiple finished bars are transported by the truss XVI.

[0130] First, the Z axis of the gripper descends. After descending to the specified position, the cylinder XVI-6 pushes the fork XVI-10 to enter the bottom of the upper part of the unloading rack XI; the Z axis rises to lift the upper part of the unloading rack XI and the finished bar material; then the X axis moves successively to the top of the finished product basket VIII, and the upper part of the unloading rack XI and the finished bar material are placed in the finished product basket VIII; then the truss moves to the top of the rack conveyor roller XV, and the upper part of the unloading rack is transported to the unloading rack XI, and it is positioned and placed, and then the finished bar material is flipped by the flipping device X, and the above process is repeated to fill the finished product basket VIII, and it is transported by the AGV trolley to complete the unloading.

[0131] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A bar sawing production line with adjustable length and diameter, characterized in that, It includes an unpacking table, a plurality of bar conveyors arranged on one side of the unpacking table. A plurality of bar positioning devices are arranged at intervals at the output end of the bar conveyor. A roller path or a powered roller path is arranged between adjacent bar positioning devices, and the roller path and the powered roller path are arranged alternately; The sawing device is arranged on one side of the end bar positioning device. A tail stock fine-tuning device and a bar turning device are arranged in sequence on the side of the sawing device opposite to the bar positioning device; A blanking rack and an electromagnetic truss are arranged on the side of the bar turning device; The bar positioning device includes an overall bracket. A roller device is installed at one end of the overall bracket away from the bar conveyor. Another roller device is arranged above the roller device, and the upper roller device is connected to a cylinder through a lifting plate; A bar clamping space is formed between the two roller devices; The roller device includes two symmetrically installed roller units. Each roller unit includes a roller and a base. The roller is rotatably installed on the base and is inclined; A V-shaped groove is formed between the two rollers; The roller size of the upper roller device is smaller than that of the lower roller device; When the cylinder rod of the upper cylinder contracts, it drives the connecting frame and the upper roller device to descend, and positioning is carried out through the V-shaped surface of the upper roller device; After positioning, the cylinder rod of the lower cylinder contracts to drive the bar to descend and contact the lower roller device; The tail stock fine-tuning device includes a bracket. A clamp body is slidably connected to the bracket, and the clamp body is connected to a horizontal movement mechanism; A lower V-shaped block is fixed to the clamp body, and an upper V-shaped block is correspondingly arranged above the lower V-shaped block. The upper V-shaped block is connected to an up-and-down movement mechanism; Among them, the up-and-down movement mechanism includes a cylinder and a linkage mechanism connected to the cylinder; The bar turning device includes a bracket, a plurality of fixed roller assemblies and a rotating roller assembly arranged on the surface of the bracket. The rotating roller assembly is rotatably connected to the bracket and is connected to a pushing mechanism; An infrared displacement sensor is installed on the side of the rotating roller assembly away from the fixed roller assembly; The headstock enters the waste basket through the blanking channel.

2. A bar sawing production line with adjustable length and diameter, characterized in that It includes an unpacking table, a plurality of bar conveyors arranged on one side of the unpacking table. A plurality of bar positioning devices are arranged at intervals at the output end of the bar conveyor. A roller path or a powered roller path is arranged between adjacent bar positioning devices, and the roller path and the powered roller path are arranged alternately; The sawing device is arranged on one side of the end bar positioning device. A tail stock fine-tuning device and a bar turning device are arranged in sequence on the side of the sawing device opposite to the bar positioning device; A blanking rack is arranged on the side of the bar turning device. One end of the blanking rack corresponds to the truss, and a rack conveyor roller path is arranged at the other end of the truss; The truss includes an overall frame and an X-axis frame installed on the lower side of the overall frame. The two X-axis frames are arranged at intervals; Each X-axis frame is slidably connected to a Z-axis frame, and a Y-axis frame is slidably connected between the two Z-axis frames. A fork is installed at the bottom of the Y-axis frame; The bar positioning device includes an overall bracket. A roller device is installed at one end of the overall bracket away from the bar conveyor. Another roller device is arranged above the roller device, and the upper roller device is connected to a cylinder through a lifting plate; A bar clamping space is formed between the two roller devices; The roller device includes two symmetrically installed roller units. Each roller unit includes a roller and a base. The roller is rotatably installed on the base and is inclined. A V-shaped groove is formed between the two rollers. The size of the roller of the upper roller device is smaller than that of the roller of the lower roller device. When the cylinder rod of the upper cylinder contracts, it drives the connecting frame and the upper roller device to descend, and positioning is carried out through the V-shaped surface of the upper roller device. After positioning, the cylinder rod of the lower cylinder contracts to drive the bar stock to descend and contact the lower roller device. The rack conveyor roller path includes a bottom plate and a plurality of roller path legs installed at the bottom of the bottom plate. Two rows of rollers are arranged on the upper surface of the bottom plate along its length direction, and there is a gap between the two rows of rollers. A baffle is installed at one end of the bottom plate to realize the automatic processing of the whole process from loading, sawing to unloading in sawing processing. The bar stock turning device includes a bracket, a plurality of fixed roller assemblies and a rotating roller assembly arranged on the surface of the bracket. The rotating roller assembly is rotatably connected to the bracket and is connected to a pushing mechanism. An infrared displacement sensor is installed on the side of the rotating roller assembly away from the fixed roller assembly.

3. A bar sawing production line with adjustable length and diameter according to claim 1 or 2, characterized in that, The roller path and the power roller path respectively include a support frame and a plurality of V-shaped rollers installed on the support frame. Each V-shaped roller is arranged at intervals. The power roller path further includes a driving mechanism, and the driving mechanism is connected to one of the V-shaped rollers of the power roller path.

4. A bar sawing production line with adjustable length and diameter according to claim 1 or 2, characterized in that, The sawing device includes a feeding roller path, a sawing machine bracket, a sawing machine and a fixture. The feeding roller path is installed on the sawing machine bracket, and the sawing machine is slidably connected to the upper side of the sawing machine bracket. The fixture is arranged at the output end of the feeding roller path.

5. A bar sawing production line with adjustable length and diameter according to claim 4, characterized in that, The fixture includes a fixture seat. At least two V-shaped seats are installed on the fixture seat. A corresponding V-shaped block is arranged above the V-shaped seat, and the V-shaped block is connected to a lifting mechanism. A blanking channel is arranged on one side of the fixture seat.

6. The bar sawing production line with adjustable length and diameter according to claim 5, characterized in that, The sawing machine is installed with a micro-lubrication device. The micro-lubrication device includes a box body, an oil pump and an air pump arranged in the box body. A fuel tank is installed on the top of the box body, and the fuel tank is connected to the oil pump. The bottom of the oil pump is connected to an oil delivery pipe and an output pipe. The oil delivery pipe and the output pipe are connected through an oil-gas mixing device. The oil-gas mixing device is connected to the air pump through an air delivery pipe, and the air pump is connected to a gas filter installed outside the box body.

7. A bar sawing production line for adjustable length and diameter according to claim 1, characterized in that The electromagnetic truss includes an overall frame and an X-axis frame installed on the lower side of the overall frame. The two X-axis frames are arranged at intervals. Each X-axis frame is slidably connected to a Z-axis frame, and a Y-axis frame is slidably connected between the two Z-axis frames. An electromagnet is installed at the bottom of the Y-axis frame.

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