CN114703442B - Screw helicoid repairing process - Google Patents
Screw helicoid repairing process Download PDFInfo
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- CN114703442B CN114703442B CN202210439563.5A CN202210439563A CN114703442B CN 114703442 B CN114703442 B CN 114703442B CN 202210439563 A CN202210439563 A CN 202210439563A CN 114703442 B CN114703442 B CN 114703442B
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/123—Spraying molten metal
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
- C23C4/08—Metallic material containing only metal elements
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/18—After-treatment
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The application relates to the technical field of screw processing, in particular to a screw helicoid repairing process which comprises preparation, repair and maintenance before repair. This application is through restoreing and the maintenance to the screw rod for discarded screw rod can be retrieved and recycled, can improve the utilization ratio of resource on the one hand, and the stand wear and tear intensity of on the other hand alloy is greater than the stand wear and tear intensity of the former metal of screw rod, can prolong the live time of screw rod.
Description
Technical Field
The application relates to the technical field of screw processing, in particular to a screw helicoid repairing process.
Background
At present, a screw is a connector with threads and is generally matched with a nut for use. The screw connection has the remarkable advantages of convenience in disassembly and assembly, stability in connection, good interchangeability, low cost and the like, and is widely applied to fastening connection and transmission structures of various structures.
In realizing this application in-process, the inventor finds that there is following problem at least in this technique, and big screw thread interval screw rod wearing and tearing are comparatively serious after long-time the use for screw rod helicoid size diminishes, makes the screw rod abandon, causes the wasting of resources.
Disclosure of Invention
In order to reduce resource waste, the application provides a screw spiral surface repairing process.
The application provides a screw rod helicoid repair technology, adopts following technical scheme:
a screw helicoid repairing process comprises the following steps:
s1: preparing the artificial bone before the repair,
s1.1: before repairing, firstly removing oil stains and rust on the surface of the screw;
s1.2: before repairing, polishing the surface of the screw rod, and grinding the screw surface of the screw rod until the original metallic luster is exposed;
s1.3: placing the screw on the support device;
s2: the repairing process is carried out by the following steps,
s2.1: melting alloy by using a spray welding device and spray welding the alloy on the surface of the screw spiral surface;
s2.2: measuring the size of the screw spiral surface of the screw until the size is larger than the designed size;
s2.3: placing the screw on a grinding machine for grinding and turning;
s2.4: polishing the screw surface of the screw;
s3: maintaining the mixture for a long time, and maintaining the mixture,
s3.1: coating an antirust agent on the screw surface of the screw;
s3.2: erasing the antirust agent on the screw spiral surface, and then smearing grease on the screw spiral surface;
s3.3: and winding antirust paper on the surface of the screw.
By adopting the technical scheme, when the screw is repaired by using the process, preparation is firstly carried out before repairing, oil stain corrosion on the surface of the screw is cleaned, and then the surface of the screw is polished until the surface of the screw is polished to expose metallic luster; then placing the screw on a supporting device, melting spraying alloy on the surface of the spiral surface of the screw by using a spraying welding device, checking the size of the spiral surface after spraying is finished, taking down the screw and taking the screw to a grinding machine for size recovery when the size of the spiral surface is larger than the original design size, polishing the spiral surface of the screw after size recovery is finished, coating an antirust agent on the spiral surface of the screw after polishing is finished and repairing is finished, then erasing the antirust agent on the surface, then coating grease, then winding antirust paper on the surface of the screw, and reducing the entry of dirt; through restoreing and the maintenance to the screw rod for discarded screw rod can retrieve and recycle, can improve the utilization ratio of resource on the one hand, and the stand wear and tear intensity of on the other hand alloy is greater than the stand wear and tear intensity of the former metal of screw rod, can prolong the live time of screw rod.
Optionally, the alloy in S2.1 is a nickel G60 alloy.
By adopting the technical scheme, when the spiral surface of the screw is subjected to alloy spray welding, the nickel G60 alloy is sprayed on the surface of the spiral surface of the screw by a spray welding gun; the nickel G60 alloy has higher strength and abrasion resistance, and further prolongs the service life of the screw.
Optionally, in S2.2, the size of the threaded rod is measured by using a vernier caliper, the minimum value is required to be larger than the design size, an average value is obtained through multiple measurements, and the average value of all measurement data is larger than the design size 1~2 mm.
By adopting the technical scheme, when the helicoid of the screw is repaired, the size of the helicoid is repeatedly measured by using a vernier caliper, when the minimum value is larger than the original design size and the average data of multiple measuring points is larger than the original design value, the screw is taken down for size recovery after the pretreatment of the screw is finished; the screw surface size multi-measuring point repeated measurement is carried out to ensure the authenticity of data, the probability of rework is reduced, and the working efficiency is improved.
Optionally, the supporting device in S1.3 includes a supporting seat, a clamping mechanism and a rotating mechanism, the clamping mechanism includes a first fixed block, a second fixed block, a rotating plate and a clamping assembly, the first fixed block is disposed at one end of the supporting seat, the second fixed block is slidably disposed at the other end of the supporting seat, the rotating plate is rotatably connected to the mutually adjacent side walls of the first fixed block and the second fixed block, and the clamping assembly is disposed on the rotating plate; the rotating mechanism is arranged on the supporting seat and connected with the rotating plate and drives the rotating plate to rotate.
By adopting the technical scheme, when the supporting device is used for placing and supporting the screw rod, one end of the screw rod is abutted to the first fixed block, then the clamping assembly is used for clamping and fixing the abutted end of the screw rod and the first fixed block, then the second fixed block is slid to be close to the screw rod, after the second fixed block is abutted to the screw rod, the clamping assembly is used for clamping and fixing the screw rod, the spray welding device is used for spraying the screw rod, and the rotating mechanism is used for driving the screw rod to rotate in the spraying process; the supporting device simple structure that sets up, the placing of the screw rod of being convenient for on the one hand, on the other hand can drive the screw rod and rotate, and the spray welding of the screw rod helicoid of being convenient for has the effect that improves work efficiency.
Optionally, the rotating mechanism includes a rotating shaft, a servo motor, a first driving wheel, a first driven wheel and a first synchronous belt, and the rotating shaft is rotatably connected to both the first fixed block and the second fixed block; the rotating shaft is connected with the rotating plate, the clamping assembly is arranged on the rotating plate, the first driven wheel is connected with the rotating shaft on the first fixed block, the servo motor is arranged on the supporting seat, the first driving wheel is arranged on an output shaft of the servo motor, and the first driving wheel and the first driven wheel are jointly sleeved with the first synchronous belt.
Through adopting the above technical scheme, when the screw rod carries out spray welding, start servo motor, servo motor drives first action wheel and rotates, first action wheel drives first synchronous belt and rotates, first synchronous belt drives first from the driving wheel and rotates, first from the driving wheel drives the axis of rotation and rotates, the axis of rotation drives the rotor plate and rotates, the rotor plate drives the screw rod and slowly rotates, realize the rotation of the in-process screw rod of spray welding alloy then, the screw rod bending deformation that the single face leads to the screw rod to carry out spray welding has been reduced, make the restoration quality of screw rod keep.
Optionally, the centre gripping subassembly includes a plurality of connecting blocks and a plurality of fixing bolt, two all be provided with a plurality ofly on the lateral wall that the rotor plate is close to each other the connecting block is, a plurality of contained angle between the connecting block equals, fixing bolt threaded connection is in on the connecting block, it is a plurality of the nodical with the axis of rotation is concentric of fixing bolt's axis.
By adopting the technical scheme, when the screw rod is clamped and fixed, one end of the screw rod is abutted against the first fixing block, then the fixing bolt on the first fixing block is rotated clockwise, the fixing bolt is abutted against and fixed with the screw rod, then the second fixing block is slid to be close to the screw rod until the second fixing block is abutted against the screw rod, the fixing bolt on the second fixing block is rotated clockwise, the fixing bolt on the second fixing block is abutted against the screw rod, and then the screw rod is driven to rotate by the rotating mechanism; the clamping assembly is simple in structure and convenient to operate.
Optionally, the spray welding device in S2.1 includes a spray welding mechanism and a driving mechanism, the spray welding mechanism includes a slide rail, a slide block, and a spray welding gun, the slide rail is disposed on the support seat, the slide block is connected to the slide rail in a sliding manner, and the spray welding gun is disposed on the slide block; the driving mechanism is arranged on the supporting seat and connected with the sliding block and drives the sliding block to slide.
By adopting the technical scheme, when the screw is subjected to spray welding, the rotating mechanism drives the screw to rotate, then the driving mechanism drives the sliding block to slide along the sliding rail, the sliding block drives the spray welding gun to slide, and the spray welding gun slides along the sliding rail along with the rotation of the screw, so that the spray welding of the spray welding gun to the spiral surface of the screw is realized; the spray welding device that sets up simple structure, the spray welding device can slide along the slide rail along with the rotation of screw rod simultaneously, realizes the comprehensive spray welding of screw rod helicoid then.
Optionally, the driving mechanism includes a ball screw, a second driving wheel, a second driven wheel and a second synchronous belt, the second driving wheel is coaxially connected with the first driving wheel, the second driven wheel is rotatably connected to the supporting seat, the ball screw is rotatably connected to the supporting seat, and the ball screw penetrates through the slider and is in threaded connection with the slider; one end of the ball screw is connected with the second driven wheel, and the second driving wheel and the second driven wheel are sleeved with the second synchronous belt.
By adopting the technical scheme, when the spiral surface of the screw is subjected to spray welding, the servo motor is started, the servo motor drives the first driving wheel to rotate, the first driving wheel drives the first synchronous belt to rotate, the first synchronous belt drives the first driven wheel to rotate, the first driven wheel drives the rotating shaft to rotate, the rotating shaft drives the rotating plate to rotate, the rotating plate drives the screw to rotate, meanwhile, the servo motor drives the second driving wheel to rotate, the second driving wheel drives the second driven wheel to rotate, the second driven wheel drives the ball screw to rotate, the ball screw drives the sliding block to slide along the sliding rail, and the sliding block drives the spray welding gun to slide and perform spray welding on the spiral surface of the screw; the driving mechanism simple structure that sets up and slewing mechanism share a driving source, have reduced the wasting of resources on the one hand, and on the other hand has realized the rotation of screw rod helicoid and has spouted welder's slip synchronous, makes the repair efficiency of the helicoid of screw rod obtain improving then.
Optionally, the first driven wheel is detachably connected to the rotating shaft, a tensioning mechanism is arranged on the supporting seat, and the tensioning mechanism is connected with the first synchronous belt and tensions the first synchronous belt; the tensioning mechanism comprises a tensioning wheel, a sliding block and a limiting bolt, the sliding block is connected to the supporting seat in a sliding mode, the tensioning wheel is connected to the sliding block in a rotating mode, the tensioning wheel abuts against the first synchronous belt, the limiting bolt is arranged on the supporting seat, and the limiting bolt abuts against the sliding block and drives the sliding block to move towards the first synchronous belt.
Through adopting above-mentioned technical scheme, when the screw thread interval of the screw rod that needs to be restoreed is different, the first follow driving wheel of removable different diameters realizes spraying welder's slip speed and the slew velocity adaptation of screw rod then, and straining device improves the synchronism between first action wheel and the first follow driving wheel to the tensioning of first synchronous belt.
Optionally, a supporting mechanism is arranged on the supporting seat, and the supporting mechanism comprises a supporting block, a supporting wheel and an adjusting assembly; the adjusting assembly comprises an adjusting plate and an adjusting bolt, the adjusting plate is arranged on the supporting seat in a sliding mode along the vertical direction, the supporting block is arranged on the adjusting plate in a rotating mode, the adjusting bolt is connected to the supporting seat in a threaded mode, and the adjusting bolt abuts against the adjusting plate and drives the adjusting plate to slide; the supporting wheel is connected to one end, far away from the supporting seat, of the supporting block in a rotating mode, and the supporting wheel is abutted to a polished rod of the screw rod and generates relative displacement.
Through adopting above-mentioned technical scheme, when the thickness of screw rod changed, at first drive the regulating plate with adjusting bolt and be close to towards the screw rod, until the pole portion butt of supporting wheel and screw rod, then according to the rotatory supporting wheel of the inclination of screw thread and parallel with the screw thread, realize supporting mechanism then to the support of screw rod, be applicable to the support of the screw rod of different screw thread intervals simultaneously.
To sum up, the application comprises the following beneficial technical effects:
1. the screw is repaired and maintained, so that the waste screw can be recycled, the utilization rate of resources can be improved on one hand, and the wear-resistant strength of the alloy is greater than that of the original metal of the screw on the other hand, so that the service life of the screw can be prolonged;
2. the arranged spray welding device is simple in structure, and can slide along the sliding rail along with the rotation of the screw rod, so that the comprehensive spray welding of the screw rod helicoid is realized;
3. the driving mechanism is simple in structure and shares a driving source with the rotating mechanism, on one hand, resource waste is reduced, on the other hand, rotation of the spiral surface of the screw is synchronous with sliding of the spray welding gun, and then the repair efficiency of the spiral surface of the screw is improved.
4. When the thread pitches of the screw rods needing to be repaired are different, the first driven wheels with different diameters can be replaced, the matching of the sliding speed of the spray welding gun and the rotating speed of the screw rods is realized, the tensioning mechanism tensions the first synchronous belt, and the synchronism between the first driving wheel and the first driven wheels is improved;
5. when the thickness of screw rod changes, at first drive the regulating plate with adjusting bolt and be close to towards the screw rod, until the pole portion butt of supporting wheel and screw rod, then rotate the supporting wheel according to the inclination of screw thread and be parallel with the screw thread, realize supporting mechanism then to the support of screw rod, be applicable to the support of the screw rod of different screw thread intervals simultaneously.
Drawings
FIG. 1 is a schematic structural view of a support device and a spray welding device in an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a rotating mechanism in an embodiment of the present application;
fig. 3 is a schematic structural diagram of a support mechanism in an embodiment of the present application.
Reference numerals: 100. a supporting seat; 110. a sliding groove; 200. a clamping mechanism; 210. a first fixed block; 220. a second fixed block; 230. a rotating plate; 240. a clamping assembly; 241. connecting blocks; 242. fixing the bolt; 300. a rotating mechanism; 310. a rotating shaft; 320. a servo motor; 330. a first drive wheel; 340. a first driven wheel; 350. a first synchronization belt; 400. a spray welding mechanism; 410. a slide rail; 420. a slider; 430. a spray welding gun; 440. a fixing plate; 500. a drive mechanism; 510. a ball screw; 520. a second drive wheel; 530. a second driven wheel; 540. a second synchronous belt; 600. a tensioning mechanism; 610. a tension wheel; 620. a slider; 630. a limit bolt; 700. a support mechanism; 710. a support block; 720. a support wheel; 730. an adjustment assembly; 731. an adjusting plate; 732. adjusting the bolt; 740. a support leg; 750. and (7) mounting the plate.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses a screw spiral surface repairing process.
The screw spiral surface repairing process comprises the following steps:
s1: preparing the artificial bone before the repair,
s1.1: before repairing, a wood board is laid on the ground, the screw is placed on the wood board, and then the surface of the screw is wiped by using a rust remover and a diluent until oil stains and rust on the surface of the screw are removed;
s1.2: and a polishing sheet is arranged on a polishing machine to polish the spiral surface of the screw until the spiral surface of the screw is exposed out of the original metallic luster, so that slag inclusion or air holes caused by the existence of impurities on the surface of the screw during spray welding are reduced.
S1.3: the screw is placed on the supporting device, so that a constructor can repair the screw conveniently;
s2: the repairing process is carried out by the steps of repairing,
s2.1: melting and welding the nickel G60 alloy on the surface of the screw spiral surface by using a spray welding device, and repeatedly spray welding the screw spiral surface of the screw;
s2.2: then marking a plurality of detection points on the surface of the screw, and then repeatedly measuring the size of the screw by using a vernier caliper, wherein the minimum value is required to be larger than the original design size; and taking the average value of multiple measurements until the average value is greater than the original designed size of 1~2 mm;
s2.3: placing the screw on a grinding machine to polish and turn the spiral surface of the screw, and polishing the screw to be larger than the original size by 0.15 mm;
s2.4: then polishing and grinding the screw, firstly selecting a screw surface at one end of the screw during polishing, mounting a 1000-mesh louver polishing sheet on one end of the screw by using a polishing machine to perform a primary polishing test on the screw surface of the screw, performing intermittent polishing, recording data, ensuring that the size and the design difference of the screw surface of the screw are between 0 and +0.05 mm, and then performing segmented polishing treatment on the subsequent screw surface of the screw according to the retention time of each polishing time of the segment; after the whole treatment of the screw surface of the screw is finished, a 1500-mesh shouldering polishing sheet is installed by a polishing machine for secondary polishing, and the difference between the size of the screw surface of the screw and the original design size is checked to be 0 to +0.02 mm.
S3: maintaining the mixture for a long time and maintaining the mixture,
s3.1: uniformly coating an antirust agent on the surface of the polished screw;
s3.2: wiping the antirust agent on the surface of the screw, and then smearing universal lithium-based lubricating grease on the surface of the screw;
s3.3: and winding anti-rust paper on the surface of the screw coated with the universal lithium-based lubricating grease, and then storing the screw.
Referring to fig. 1 and 2, the supporting device used in S1.3 includes a supporting seat 100, a clamping mechanism 200 is disposed on the supporting seat 100, the clamping mechanism 200 includes a first fixing block 210 fixedly connected to one end of the supporting seat 100, the other end of the supporting seat 100 is connected to a second fixing block 220 in a sliding manner, the first fixing block 210 and the second fixing block 220 are both located on one side of the supporting seat 100 away from the ground, and the first fixing block 210 and the second fixing block 220 are parallel to each other; the side walls of the first fixed block 210 and the second fixed block 220 close to each other are rotatably connected with a rotating plate 230; the supporting base 100 is provided with a rotating mechanism 300 for driving the rotating plate 230 to rotate; the rotating plates 230 are provided with clamping assemblies 240, each clamping assembly 240 comprises a plurality of connecting plates, preferably six connecting plates in this embodiment, each rotating plate 230 is fixedly connected with three connecting plates, the six connecting plates are respectively located on the side walls of two rotating plates 230 which are close to each other, and the included angles between the three connecting plates on the same rotating plate 230 are the same; the connecting plate is connected with a fixing bolt 242 through a thread, the axis of the fixing bolt 242 is parallel to the axis of the first fixing block 210, and one end of the fixing bolt 242 penetrates through the connecting plate.
Referring to fig. 1 and 2, the rotating mechanism 300 includes two rotating shafts 310 rotatably connected to sidewalls of the first fixed block 210 and the second fixed block 220, respectively, and the two rotating shafts 310 are fixedly connected to the two rotating plates 230, respectively; the rotating shaft 310 on the first fixed block 210 penetrates through the fixed block and is detachably connected with a first driven wheel 340; the supporting seat 100 is fixedly connected with a servo motor 320 on the side wall of the first fixing block 210, the output shaft of the servo motor 320 is connected with a first driving wheel 330, and the first driving wheel 330 and the second driving wheel 520 are jointly sleeved with a first synchronous belt 350. The servo motor 320 is started, the servo motor 320 drives the first driving wheel 330 to rotate, the first driving wheel 330 drives the first synchronous belt 350 to rotate, the first synchronous belt 350 drives the first driven wheel 340 to rotate, the first driven wheel 340 drives the rotating shaft 310 to rotate, and the rotating shaft 310 drives the rotating plate 230 to rotate.
Referring to fig. 2 and 3, a supporting mechanism 700 is disposed on one side of the supporting seat 100 close to the ground, the supporting mechanism 700 includes an adjusting assembly 730, the adjusting assembly 730 includes an adjusting plate 731, a sliding slot 110 is disposed on the bottom wall of the supporting seat 100, and the adjusting plate 731 is connected in the sliding slot 110 in a sliding manner; the bottom wall of the supporting seat 100 is fixedly connected with four supporting legs 740, the four supporting legs 740 are fixedly connected with a mounting plate 750 together, the mounting plate 750 is in threaded connection with three adjusting bolts 732, and the adjusting bolts 732 penetrate through the mounting plate 750 to abut against the adjusting plate 731 and drive the adjusting plate 731 to slide in the sliding groove 110; the adjusting plate 731 is rotatably connected to the sidewall of the mounting plate 750 with a plurality of supporting blocks 710, one end of the supporting block 710 away from the adjusting plate 731 is rotatably connected to a supporting wheel 720, and the supporting wheel 720 can abut against a screw rod clamped between the first fixing block 210 and the second fixing block 220 and can perform relative displacement.
Referring to fig. 1, the spray welding device used in S2.1 includes a spray welding mechanism 400, the spray welding mechanism 400 includes a fixing plate 440 fixedly connected to one side of the supporting seat 100, two mutually parallel sliding rails 410 are fixedly connected to the fixing plate 440, a length direction of the sliding rail 410 is parallel to a length direction of the supporting seat 100, a sliding block 420 is slidably connected to the sliding rail 410, the sliding block 420 slides along the length direction of the sliding rail 410, and a spray welding gun 430 is fixedly connected to a side wall of the sliding block 420 away from the sliding rail 410; the supporting seat 100 is provided with a driving mechanism 500, the driving mechanism 500 comprises a ball screw 510 rotatably connected between the two slide rails 410, and the ball screw passes through the slider 420 and is in threaded connection with the slider 420; a second driven wheel 530 is rotatably connected to the side wall of the supporting seat 100 fixedly connected to the first fixing block 210, and the second driven wheel 530 is connected to one end of the ball screw 510 and drives the ball screw 510 to rotate; one side of the first driving wheel 330 far away from the servo motor 320 is coaxially and fixedly connected with a second driving wheel 520, and the second driving wheel 520 and the second driven wheel 530 are sleeved with a second synchronous belt 540 together.
Referring to fig. 1 and 2, a tensioning mechanism 600 is disposed on the supporting seat 100, the tensioning mechanism 600 includes a sliding block 620, a sliding slot is disposed on the supporting seat 100, the sliding block 620 is slidably connected in the sliding slot, the sliding block 620 approaches towards the first synchronous belt 350, a tensioning wheel 610 is rotatably connected to the sliding block 620, and the first tensioning wheel 610 abuts against a side wall of the first synchronous belt 350 away from the first driving wheel 330; two limit bolts 630 are connected to the supporting seat 100 through threads, the two limit bolts 630 are respectively located on two sides of the sliding groove, the axis of the limit bolt 630 is parallel to the axis of the sliding groove, the limit bolt 630 is located on one side, far away from the first driving wheel 330, of the sliding block 620, and the limit bolt 630 abuts against the sliding block 620 and drives the sliding block 620 to slide.
The implementation principle of the screw spiral surface repairing process in the embodiment of the application is as follows: when the helicoid of the screw is repaired, firstly, preparing before repairing, cleaning up the screw, then preliminarily polishing the screw, then abutting one end of the screw against the rotating plate 230 on the first fixing block 210, and then clockwise rotating the fixing bolt 242 on the first fixing block 210 until the fixing bolt 242 abuts against the screw; then, the second fixing block 220 is slid to approach the screw, the rotating plate 230 on the second fixing block 220 abuts against the screw, then the fixing bolt 242 is rotated, and the fixing bolt 242 abuts against the screw; then, sliding the welding gun 430 to one end of the slide rail 410, and selecting a proper first driven wheel 340 according to the space between the spiral surfaces to ensure that the welding gun 430 always aligns with the spiral surface of the screw rod when the welding gun 430 slides; then, the sliding connection block 241 approaches toward the first timing belt 350, the connection block 241 abuts the first timing belt 350 with the tension pulley 610, and then the end of the rotation limiting bolt 630 abuts the connection and limits the connection block 241 from moving away from the first timing belt 350.
After the screw rod is fixed between the first fixing block 210 and the second fixing block 220, the adjusting bolt 732 is rotated clockwise to drive the adjusting plate 731 to approach towards the screw rod until the supporting wheel 720 abuts against the screw rod, and then the supporting wheel 720 is rotated to be parallel to the spiral surface according to the angle of the spiral.
The spray welding gun 430 and the servo motor 320 are started, the spray welding gun 430 performs spray welding on the spiral surface of the screw, the servo motor 320 drives the first driving wheel 330 to rotate, the first driving wheel 330 drives the first synchronous belt 350 to rotate, the first synchronous belt 350 drives the first driven wheel 340 to rotate, the first driven wheel 340 drives the rotating shaft 310 to rotate, the rotating shaft 310 drives the rotating plate 230 to rotate, and the rotating plate 230 drives the screw to slowly rotate; meanwhile, the servo motor 320 drives the second driving wheel 520 to rotate, the second driving wheel 520 drives the second synchronous belt 540 to rotate, the second synchronous belt 540 drives the second driven wheel 530 to rotate, the second driven wheel 530 drives the ball screw 510 to rotate, the ball screw 510 drives the sliding block 420 to slide along the sliding rail 410, and the sliding block 420 drives the spray welding gun 430 to slide and perform spray welding on a spiral surface.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (5)
1. The screw spiral surface repairing process is characterized by comprising the following steps:
s1: preparing the artificial bone before the repair,
s1.1: before repairing, firstly removing oil stains and rust on the surface of the screw;
s1.2: before repairing, polishing the surface of the screw rod, and grinding the screw surface of the screw rod until the original metallic luster is exposed;
s1.3: placing the screw on the support device;
s2: the repairing process is carried out by the following steps,
s2.1: melting alloy by using a spray welding device and spray welding the alloy on the surface of the screw spiral surface;
s2.2: measuring the size of the screw spiral surface of the screw until the size is larger than the designed size;
s2.3: placing the screw on a grinding machine for grinding and turning;
s2.4: polishing the helicoid of the screw;
s3: maintaining the mixture for a long time and maintaining the mixture,
s3.1: coating an antirust agent on the screw surface of the screw;
s3.2: erasing the antirust agent on the screw spiral surface, and then smearing grease on the screw spiral surface;
s3.3: winding antirust paper on the surface of the screw;
the supporting device in S1.3 comprises a supporting seat (100), a clamping mechanism (200) and a rotating mechanism (300), wherein the clamping mechanism (200) comprises a first fixed block (210), a second fixed block (220), a rotating plate (230) and a clamping assembly (240), the first fixed block (210) is arranged at one end of the supporting seat (100), the second fixed block (220) is arranged at the other end of the supporting seat (100) in a sliding manner, the rotating plate (230) is rotatably connected to the side walls, close to each other, of the first fixed block (210) and the second fixed block (220), and the clamping assembly (240) is arranged on the rotating plate (230); the rotating mechanism (300) is arranged on the supporting seat (100), and the rotating mechanism (300) is connected with the rotating plate (230) and drives the rotating plate (230) to rotate;
a supporting mechanism (700) is arranged on the supporting seat (100), and the supporting mechanism (700) comprises a supporting block (710), a supporting wheel (720) and an adjusting component (730); the adjusting assembly (730) comprises an adjusting plate (731) and an adjusting bolt (732), the adjusting plate (731) is arranged on the supporting seat (100) in a sliding mode along the vertical direction, the supporting block (710) is arranged on the adjusting plate (731) in a rotating mode, the adjusting bolt (732) is connected to the supporting seat (100) in a threaded mode, and the adjusting bolt (732) abuts against the adjusting plate (731) and drives the adjusting plate (731) to slide; the supporting wheel (720) is rotatably connected to one end, away from the supporting seat (100), of the supporting block (710), and the supporting wheel (720) is abutted to the screw rod and relatively displaced;
the rotating mechanism (300) comprises a rotating shaft (310), a servo motor (320), a first driving wheel (330), a first driven wheel (340) and a first synchronous belt (350), and the rotating shaft (310) is rotatably connected to the first fixed block (210) and the second fixed block (220); the rotating shaft (310) is connected with the rotating plate (230), the clamping assembly (240) is arranged on the rotating plate (230), the first driven wheel (340) is connected with the rotating shaft (310) on the first fixed block (210), the servo motor (320) is arranged on the supporting seat (100), the first driving wheel (330) is arranged on an output shaft of the servo motor (320), and the first driving wheel (330) and the first driven wheel (340) are sleeved with the first synchronous belt (350) together;
the spray welding device in S2.1 comprises a spray welding mechanism (400) and a driving mechanism (500), wherein the spray welding mechanism (400) comprises a slide rail (410), a slide block (420) and a spray welding gun (430), the slide rail (410) is arranged on the supporting seat (100), the slide block (420) is connected to the slide rail (410) in a sliding manner, and the spray welding gun (430) is arranged on the slide block (420); the driving mechanism (500) is arranged on the supporting seat (100), and the driving mechanism (500) is connected with the sliding block (420) and drives the sliding block (420) to slide;
the driving mechanism (500) comprises a ball screw (510), a second driving wheel (520), a second driven wheel (530) and a second synchronous belt (540), the second driving wheel (520) is coaxially connected with the first driving wheel (330), the second driven wheel (530) is rotatably connected to the supporting seat (100), the ball screw (510) is rotatably connected to the supporting seat (100), and the ball screw (510) penetrates through the sliding block (420) and is in threaded connection with the sliding block (420); one end of the ball screw (510) is connected with the second driven wheel (530), and the second synchronous belt (540) is sleeved on the second driving wheel (520) and the second driven wheel (530).
2. A screw helicoid repair process according to claim 1, wherein the alloy in S2.1 is nickel G60 alloy.
3. The screw helicoid repairing process according to claim 1, wherein in S2.2, the size of the threaded rod is measured by a vernier caliper, the minimum value is required to be larger than the design size, the average value of multiple measurements is taken, and the average value of all measurement data is larger than the design size 1~2 mm.
4. A screw helicoid repairing process according to claim 1, wherein the clamping assembly (240) comprises a plurality of connecting blocks (241) and a plurality of fixing bolts (242), the connecting blocks (241) are arranged on the side walls of the two rotating plates (230) close to each other, the included angles between the connecting blocks (241) are equal, the fixing bolts (242) are in threaded connection with the connecting blocks (241), and the intersection points of the axes of the fixing bolts (242) are concentric with the rotating shaft (310).
5. A screw helicoid repairing process according to claim 1, wherein said first driven wheel (340) is detachably connected to said rotating shaft (310), said supporting base (100) is provided with a tensioning mechanism (600), said tensioning mechanism (600) is connected with said first synchronous belt (350) and tensions said first synchronous belt (350); the tensioning mechanism (600) comprises a tensioning wheel (610), a sliding block (620) and a limiting bolt (630), the sliding block (620) is connected to the supporting seat (100) in a sliding mode, the tensioning wheel (610) is connected to the sliding block (620) in a rotating mode, the tensioning wheel (610) is abutted to the first synchronous belt (350), the limiting bolt (630) is arranged on the supporting seat (100), and the limiting bolt (630) is abutted to the sliding block (620) and drives the sliding block (620) to approach the first synchronous belt (350).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US3339056A (en) * | 1966-06-06 | 1967-08-29 | Colonial Broach & Machine Comp | Machine and method of applying metal layer |
| CN100436021C (en) * | 2003-12-10 | 2008-11-26 | 上海工程技术大学 | An Automatic built up welding method and equipment |
| CN203526852U (en) * | 2013-10-01 | 2014-04-09 | 新疆天业（集团）有限公司 | Supporting device for screw restoration |
| CN103862296A (en) * | 2014-03-27 | 2014-06-18 | 中冶华天工程技术有限公司 | Bead welding device |
| CN104141129B (en) * | 2014-07-24 | 2016-10-05 | 燕山大学 | A kind of restorative procedure of screw rod |
| CN107262888A (en) * | 2017-07-14 | 2017-10-20 | 芜湖鼎恒材料技术有限公司 | A kind of Bead weld repair equipment of male thread portion for screw rod |
| CN109014490A (en) * | 2018-08-13 | 2018-12-18 | 芜湖鼎恒材料技术有限公司 | A kind of screw rod renovation technique |
| CN209902411U (en) * | 2019-03-18 | 2020-01-07 | 江苏毅昌科技有限公司 | Bolt thread repairing device |
| CN112439968A (en) * | 2019-08-27 | 2021-03-05 | 湖北宜飞复合新材料有限公司 | Heating and repairing device for roller surface of cement clinker crushing roller |
| CN211305152U (en) * | 2019-11-05 | 2020-08-21 | 太仓金钢重机轧辊有限公司 | Surfacing machine for automatically repairing roller |
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