CN111941095A - Automatic detection and grinding system for surface defects of titanium and titanium alloy wire blank - Google Patents
Automatic detection and grinding system for surface defects of titanium and titanium alloy wire blank Download PDFInfo
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- CN111941095A CN111941095A CN202010803544.7A CN202010803544A CN111941095A CN 111941095 A CN111941095 A CN 111941095A CN 202010803544 A CN202010803544 A CN 202010803544A CN 111941095 A CN111941095 A CN 111941095A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
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Abstract
The invention discloses an automatic detection and grinding system for surface defects of titanium and titanium alloy wire blanks, which comprises an uncoiler and a coiling machine, wherein one end of each titanium and titanium alloy wire is connected with the uncoiler, the other end of each titanium and titanium alloy wire is connected with the coiling machine, and a straightener, a first clamping and conveying device, a first eddy current flaw detection device, a planetary belt sander, a second eddy current flaw detection device, a second clamping and conveying device and a bending machine are sequentially arranged on the titanium and titanium alloy wires between the uncoiler and the coiling machine. The invention can accurately find and determine the defect position in all directions, has low labor intensity and more environment-friendly repairing process, and completely avoids the risk of defect omission in the manual polishing process.
Description
Technical Field
The invention belongs to the technical field of defect grinding treatment, and particularly relates to an automatic detection and grinding system for surface defects of titanium and titanium alloy wire blanks.
Background
At present, because blanks come from hot rolling in the processing process of titanium and titanium alloy wires, the smooth proceeding of subsequent processing is influenced by surface defects such as flash, lug, folding, cracks and the like which are difficult to avoid in the hot rolling process, the large surface defects such as the flash, the lug and the like can be removed by high-precision centerless lathe processing, and for the surface defects with certain depth such as the folding, the cracks and the like, the defect source is deep possibly, the defect is not completely removed, but for the deep defects, the defect source can be found only by naked eyes manually at present, and then the surface defects are removed by manual polishing.
Because the defect source needs to be manually searched and manually ground, the conditions of missing the crack source and incomplete grinding are inevitable in the process, meanwhile, the labor intensity of manual operation is high, the period is long, even if the manual operation is careful in the whole process, some crack sources can not be manually found and removed by naked eyes, and hidden dangers are left for subsequent processing. The invention aims to solve the technical problem of how to automatically find surface defects and repair and remove the surface defects in the polishing link of the bright titanium and titanium alloy wire subjected to turning by a centerless lathe in the processing process of the titanium and titanium alloy wire.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a method for automatically searching surface defects and polishing and removing the defects in the polishing link of the surfaces of bright titanium and titanium alloy wires after turning by a high-precision centerless lathe, aiming at the defects in the prior art, and the method has the characteristics of high efficiency, accuracy, low labor intensity, short operation period and the like.
The invention adopts the following technical scheme:
the automatic detection and grinding system for the surface defects of the titanium and titanium alloy wire blanks comprises an uncoiler and a coiling machine, wherein one end of each titanium and titanium alloy wire is connected with the uncoiler, the other end of each titanium and titanium alloy wire is connected with the coiling machine, and a straightener, a first clamping and conveying device, a first eddy current flaw detection device, a planetary abrasive belt polishing machine, a second eddy current flaw detection device, a second clamping and conveying device and a bending machine are sequentially arranged on the titanium and titanium alloy wires between the uncoiler and the coiling machine.
Specifically, the distance between the uncoiler and the straightener is more than or equal to 2000 mm.
Specifically, the straightener adopts a flat-vertical roller straightener, and the straightening roller hole pattern of the straightener is in a circular arc shape.
Specifically, the first pinch device is of a three-row structure and comprises an upper roller and a lower roller of the centripetal clamping mechanism, and arc hole patterns are engraved on the pinch rollers.
Specifically, the abrasive belt granularity of the planetary abrasive belt polishing machine is less than or equal to 60-120 meshes.
Specifically, a V-shaped groove is formed in the surface of a bending wheel of the bending machine.
Specifically, the bending machine is of a hydraulic automatic structure.
Specifically, the diameter D of the titanium and titanium alloy wire is less than or equal to phi 13mm, the size precision IT is less than or equal to +/-0.05 mm, and the surface smoothness Ra is less than or equal to 1.6-3.2 mu m.
Compared with the prior art, the invention has at least the following beneficial effects:
the automatic detection and grinding system for the surface defects of the titanium and titanium alloy wire blanks has the advantages that the turning efficiency of a high-precision centerless lathe is high, the size precision of the turned titanium alloy wire surface is high, the surface quality is good, the requirements of follow-up eddy current flaw detection are completely met, and the requirements of eddy current flaw detection on the size precision and the surface finish of the blanks are completely met without adding the procedures of surface grinding, polishing and the like; in the process of manual grinding, the positions of the defects need to be identified and found manually by naked eyes, and the risk of defect omission inevitably occurs. The eddy current flaw detector belongs to all-dimensional surface flaw detection equipment in the whole process, and the risk of missing defects is effectively eliminated; because the titanium and titanium alloy wire materials belong to the shape of a circular section, the defect can be at any position of the circular section, and the eddy current flaw detector in the device can accurately lock the circular section of the defect, so that the subsequent defect can be conveniently removed; the planetary abrasive belt grinder can automatically grind the defect section, remove deep source defects, does not need manual participation, and greatly reduces the labor intensity of the original manual grinding.
Further, the distance between the uncoiler and the straightener is larger than 2000mm, the primary purpose is to facilitate uncoiling of coiled wires, and the secondary purpose is to ensure enough distance when the coiled wires need to be reversely rotated due to damage.
Furthermore, the purpose of arranging the flat and vertical roller straightener is to straighten coiled wires, and the arrangement of the hole pattern of the straightening roller of the straightener is arc-shaped mainly aims to prevent the surface of the wires from being scratched in the repeated positive and negative operation process.
Furthermore, the clamping and conveying device is arranged into three rows to form an integral structure, and the clamping and conveying device mainly ensures that enough clamping force is ensured to ensure that the wire runs in a tensioned state in the running process; the purpose of the circular arc hole pattern on the pinch roll is to prevent the wire from being scratched in the running process.
Furthermore, the planetary abrasive belt mill can be integrally sealed after being automatically grinded, harmful particles such as dust generated by the abrasive belt mill can be completely and intensively recycled after an air exhaust system is added, only periodic treatment is needed, and therefore the influence on operators and the surrounding environment in the process of repairing injuries is greatly reduced.
Furthermore, the V-shaped groove has a good centering effect, the pressing force required in the bending process is very large, and the V-shaped groove is set to be of a V-shaped groove structure with a good centering effect in order to prevent wire twisting in the bending process.
Furthermore, the bending machine is set to be in a hydraulic mode, so that enough pressing force is mainly guaranteed to achieve the bending requirement of titanium alloy plastic deformation, and meanwhile, in order to facilitate forward and reverse operation in the process of inspection and repair, the bending machine needs to be operated in the reverse direction to maintain the opening state in the process of repair so as to facilitate easy retraction of wires.
Furthermore, titanium and titanium alloy are difficult to coil due to large elastic modulus, and the maximum diameter size of the coiled state can be no more than phi 13mm according to the current technical conditions; the requirements of diameter tolerance and surface roughness are mainly set according to the feeding requirement of eddy current inspection equipment, the condition that wires cannot smoothly pass through the eddy current inspection equipment possibly occurs due to the fact that the dimensional tolerance is out of tolerance, and the condition that a large amount of misjudgments occur due to the fact that the surface roughness is out of tolerance.
In conclusion, the defect position can be found and determined comprehensively and accurately, the labor intensity is low, the repairing process is more environment-friendly, and the risk of defect omission in the manual grinding process is completely eradicated.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention.
Wherein: 1. an uncoiler; 2. titanium and titanium alloy wire; 3. a straightener; 4. a first pinch device; 5. a first eddy current flaw detection device; 6. a planetary belt sander; 7. a second eddy current flaw detection device; 8. a second pinch device; 9. bending machine; 10. and (7) a winding machine.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "one side", "one end", "one side", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Various structural schematics according to the disclosed embodiments of the invention are shown in the drawings. The figures are not drawn to scale, wherein certain details are exaggerated and possibly omitted for clarity of presentation. The shapes of various regions, layers and their relative sizes and positional relationships shown in the drawings are merely exemplary, and deviations may occur in practice due to manufacturing tolerances or technical limitations, and a person skilled in the art may additionally design regions/layers having different shapes, sizes, relative positions, according to actual needs.
Referring to fig. 1, the automatic surface defect detecting and polishing system for titanium and titanium alloy wire blanks of the present invention comprises an uncoiler 1 and a coiler 10, wherein one end of a titanium and titanium alloy wire 2 is connected with the uncoiler 1, the other end is connected with the coiler 10, a straightener 3 and a clamping and conveying device are sequentially arranged on the titanium and titanium alloy wire 2 between the uncoiler 1 and the coiler 10, the system comprises an eddy current flaw detection device, a planetary belt sander 6 and a bending machine 9, wherein the eddy current flaw detection device comprises a first eddy current flaw detection device 5 and a second eddy current flaw detection device 7, the first eddy current flaw detection device 5 and the second eddy current flaw detection device 7 are respectively arranged on two sides of the planetary belt sander 6, the clamping and conveying device comprises a first clamping and conveying device 4 and a second clamping and conveying device 8, the first clamping and conveying device 4 is arranged between a straightener 3 and the first eddy current flaw detection device 5, and the second clamping and conveying device 8 is arranged between the second eddy current flaw detection device 7 and the bending machine 9.
The uncoiler 1 has an uncoiling function and can uncoil the titanium and titanium alloy wire 2 which is coiled by bending, and the distance between the uncoiler 1 and the straightener 3 is more than or equal to 2000 mm.
The straightener 3 adopts a flat vertical roller straightener, and the hole pattern of the straightening roller of the straightener is arc-shaped, so that the surface defects such as secondary scratch and the like generated in the straightening process can be effectively prevented.
The first eddy current flaw detection device 5 is used for searching a wire surface defect source, a probe can be replaced according to different diameters of wires, and meanwhile a defect signal can be provided for a control system to determine the position of a defect source.
The second eddy current flaw detection device 7 has the same structure as the first eddy current flaw detection device 5, and is used for secondarily confirming whether the defect source subjected to polishing treatment is completely treated or not, and simultaneously providing a signal for the control system to determine whether polishing is required again or not.
The model of the eddy current flaw detection equipment according to the early test is as follows: ET555Win +, frequency setting range: 100-142 Hz; and (3) filtering setting: high pass 35Hz, low pass 15 Hz; detection sensitivity: 50-60 dB; phase position: 115 to 260 degrees.
The planetary belt sander 6 automatically grinds the surface defects of the filament materials on line, the grain size of the abrasive belt is less than or equal to 60-120 meshes, the smaller the mesh number of the abrasive belt is, the rougher the surface of the abrasive belt is, the more easily the defects are grinded, and the condition of over-grinding is easy to occur, the grain size of the abrasive belt in the range of 60-120 meshes is favorable for controlling the grinding process through preliminary tests, the grinding amount is determined by the grinding time of the abrasive belt to the positions of the defects, and the 1mm deep damage can be cleanly ground through grinding of the abrasive belt of 80 meshes for 30s through tests.
Bender 9 is hydraulic pressure automatic formula structure, and the wheel of bending is the nilen material, and V type groove is opened on the surface, inject silk material position, and the wheel of bending material is 20Cr, and the surface is smooth, and the wheel of bending can open by oneself as required.
Because the bending process needs certain pressure, if the material of the bending wheel is too hard, the condition that the surface of the wire is easily crushed and deformed occurs, otherwise, if the material of the bending wheel is too soft, the service life of the bending wheel is too short, and the material of the bending wheel is finally determined to be 20Cr through tests of a large number of bending wheels made of various materials.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Aiming at the bright titanium and titanium alloy wire 2 turned by a high-precision centerless lathe, the diameter of the titanium and titanium alloy wire 2 is less than or equal to phi 13mm, the size precision is less than or equal to +/-0.05 mm, and the surface finish is less than or equal to 1.6 mu m, (which should be changed into 3.2), if the size tolerance of the titanium and titanium alloy wire 2 is large or the surface finish is poor, the subsequent automatic detection can be influenced, and misjudgment can be generated.
Titanium and titanium alloy wire materials 2 subjected to surface turning on a high-precision centerless lathe are placed on an uncoiler 1, the uncoiled titanium and titanium alloy wire materials 2 enter straighteners 3 after a distance of not less than 2000mm, each straightener 3 can be independently adjusted to be pressed down or pressed up, and two rows of straightening rollers which are parallel up and down or front and back can be integrally opened during wire threading, so that the wire threading is facilitated;
the wire 2 passing through the straightener 3 enters the first clamping and conveying device 4, the wire 2 automatically enters the first eddy current flaw detection device 5 after passing through the first clamping and conveying device 4, a wire surface defect source is searched, if the surface of the wire 2 passing through the first eddy current flaw detection device 5 has defects, a signal is given and sent to the control system, and the control system accurately sends the wire 2 into the wire planetary belt sander 6 after calculation to grind the surface defects of the wire 2;
feeding the polished wire 2 into a second eddy current flaw detection device 7, determining whether the surface defects of the wire 2 are polished completely, wherein the configuration model of the second eddy current flaw detection device 7 is completely the same as that of the first eddy current flaw detection device 5, if the second eddy current flaw detection device 7 detects flaws and finds that the surface defects of the wire 2 are not polished completely, sending a signal to a control system, and reversely rotating the control system after calculation to reversely feed the wire 2 into a planetary belt sander 6 for re-polishing until the surface defects of the wire 2 are completely polished;
if the surface of the wire is not defective, the wire 2 sequentially passes through a first eddy current inspection device 5, a wire planetary belt sander 6 and a second eddy current inspection device 7; the wire 2 subjected to surface flaw detection, polishing and flaw detection again enters a second wire clamping and conveying device 8, and the second clamping and conveying device 8 and the first clamping and conveying device 4 are completely identical in configuration model and function; the wire 2 is sent into the bending machine 9 by the second clamping and sending device 8 to be judged to be bent, the wire 2 bent by the bending machine 9 is sent into the winding machine 10 to be wound, the winding machine 10 winds the wire according to the size of the bending radius, and meanwhile, the winding machine is controlled by the system to be started and stopped.
In conclusion, the automatic detection and grinding system for the surface defects of the titanium and titanium alloy wire blank has the advantages that the turning efficiency of a high-precision centerless lathe is high, the size precision of the turned surface of the titanium alloy wire is high, the surface quality is good, the requirements of follow-up eddy current flaw detection are completely met, and the requirements of eddy current flaw detection on the size precision and the surface finish of the blank are completely met without adding the procedures of surface grinding, polishing and the like; in the process of manual grinding, the positions of the defects need to be identified and found manually by naked eyes, and the risk of defect omission inevitably occurs. The eddy current flaw detector belongs to all-dimensional surface flaw detection equipment in the whole process, and the risk of missing defects is effectively eliminated; because the titanium and titanium alloy wire materials belong to the shape of a circular section, the defect can be at any position of the circular section, and the eddy current flaw detector in the device can accurately lock the circular section of the defect, so that the subsequent defect can be conveniently removed; the planetary abrasive belt grinder can automatically grind the defect section, remove deep source defects, does not need manual participation, and greatly reduces the labor intensity of the original manual grinding.
The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (8)
1. The utility model provides a titanium and titanium alloy silk material blank surface defect automated inspection coping system which characterized in that, includes decoiler (1) and rolling machine (10), the one end and decoiler (1) of titanium and titanium alloy silk material (2) are connected, and the other end is connected with rolling machine (10), has set gradually straightener (3), first clamp on titanium and the titanium alloy silk material (2) between decoiler (1) and rolling machine (10), first press from both sides send device (4), first eddy current inspection device (5), planet abrasive band machine (6), second eddy current inspection device (7), second press from both sides send device (8) and bender (9).
2. The automatic surface defect detection and grinding system for titanium and titanium alloy wire blanks as claimed in claim 1, wherein the distance between the uncoiler (1) and the straightener (3) is greater than or equal to 2000 mm.
3. The automatic surface defect detecting and polishing system for the titanium and titanium alloy wire blank according to claim 1 or 2, wherein the straightener (3) adopts a flat vertical roller straightener, and the straightening roller hole pattern of the straightener (3) is circular arc.
4. The automatic surface defect detecting and polishing system for titanium and titanium alloy wire blanks as recited in claim 1, wherein the first pinch device (4) is of a three-row structure and comprises an upper roller and a lower roller of a centripetal clamping mechanism, and circular hole patterns are carved on the pinch rollers.
5. The automatic surface defect detection and grinding system for titanium and titanium alloy wire blanks as recited in claim 1, wherein the abrasive belt granularity of the planetary belt sander (6) is less than or equal to 60-120 meshes.
6. The automatic surface defect detection and grinding system for titanium and titanium alloy wire blanks as recited in claim 1, wherein a bending wheel of the bending machine (9) is provided with a V-shaped groove on the surface.
7. The automatic surface defect detection and grinding system for titanium and titanium alloy wire blanks as recited in claim 1, wherein the bending machine (9) is of a hydraulic automatic structure.
8. The automatic surface defect detecting and polishing system for the titanium and titanium alloy wire blank according to claim 1, wherein the diameter D of the titanium and titanium alloy wire (2) is less than or equal to phi 13mm, the dimensional accuracy IT is less than or equal to +/-0.05 mm, and the surface smoothness Ra is less than or equal to 1.6-3.2 μm.
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| CN202010803544.7A CN111941095A (en) | 2020-08-11 | 2020-08-11 | Automatic detection and grinding system for surface defects of titanium and titanium alloy wire blank |
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Cited By (1)
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| CN117086118A (en) * | 2023-08-11 | 2023-11-21 | 索罗曼(广州)新材料有限公司 | Automatic detection device and method for titanium flat strip hot rolling process |
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