CN113953338B - High-strength high-elasticity shape memory alloy chuck for drawing high-carbon steel wire - Google Patents
High-strength high-elasticity shape memory alloy chuck for drawing high-carbon steel wire Download PDFInfo
- Publication number
- CN113953338B CN113953338B CN202111174532.3A CN202111174532A CN113953338B CN 113953338 B CN113953338 B CN 113953338B CN 202111174532 A CN202111174532 A CN 202111174532A CN 113953338 B CN113953338 B CN 113953338B
- Authority
- CN
- China
- Prior art keywords
- shape memory
- memory alloy
- plate
- carbon steel
- steel wire
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910001285 shape-memory alloy Inorganic materials 0.000 title claims abstract description 122
- 229910000677 High-carbon steel Inorganic materials 0.000 title claims abstract description 80
- 229910001000 nickel titanium Inorganic materials 0.000 claims abstract description 102
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000005275 alloying Methods 0.000 claims abstract description 8
- 238000005516 engineering process Methods 0.000 claims abstract description 8
- 229910052742 iron Inorganic materials 0.000 claims abstract description 8
- 230000000149 penetrating effect Effects 0.000 claims abstract description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 31
- 229910052802 copper Inorganic materials 0.000 claims description 31
- 239000010949 copper Substances 0.000 claims description 31
- 230000007246 mechanism Effects 0.000 claims description 15
- 230000017525 heat dissipation Effects 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 10
- 229910000831 Steel Inorganic materials 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 7
- 239000010959 steel Substances 0.000 abstract description 7
- 238000005491 wire drawing Methods 0.000 abstract description 7
- 229910000734 martensite Inorganic materials 0.000 abstract description 3
- 230000009466 transformation Effects 0.000 abstract description 3
- 238000005457 optimization Methods 0.000 description 9
- 238000011084 recovery Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000010791 quenching Methods 0.000 description 5
- 230000000171 quenching effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000003446 memory effect Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010622 cold drawing Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/02—Drawing metal wire or like flexible metallic material by drawing machines or apparatus in which the drawing action is effected by drums
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/02—Drawing metal wire or like flexible metallic material by drawing machines or apparatus in which the drawing action is effected by drums
- B21C1/14—Drums, e.g. capstans; Connection of grippers thereto; Grippers specially adapted for drawing machines or apparatus of the drum type; Couplings specially adapted for these drums
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C3/00—Profiling tools for metal drawing; Combinations of dies and mandrels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C9/00—Cooling, heating or lubricating drawing material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
- Clamps And Clips (AREA)
Abstract
The invention relates to the technical field of high-carbon steel wire processing, and particularly discloses a high-strength high-elasticity shape memory alloy chuck for high-carbon steel wire drawing. The invention applies the mechanical characteristics of NiTi shape memory alloy stress induced martensite reverse phase transformation to flexibly load the clamped high-carbon steel wire, and generates a stress platform in the loading process, namely the stress is not changed along with the increase of deformation, so that the high-carbon steel wire is ensured not to generate stress concentration at the clamping head position, the steel wire is prevented from being broken, the drawing efficiency of the high-carbon steel wire is improved, an iron penetrating layer is attached to the surface of the NiTi shape memory alloy plate by adopting a double-glow plasma alloying technology, and the surface hardness of the NiTi shape memory alloy plate is improved.
Description
Technical Field
The invention relates to the technical field of high-carbon steel wire processing, in particular to a high-strength high-elasticity shape memory alloy chuck for high-carbon steel wire drawing.
Background
After proper heat treatment or cold drawing hardening, the high-carbon steel wire has high strength and hardness, high elastic limit and fatigue limit (especially notch fatigue limit), good cutting performance, but poor welding performance and cold plastic deformation capability; because of high carbon content, cracks are easy to generate during water quenching, double-liquid quenching (water quenching and oil cooling) is adopted in most parts with small cross sections, and oil quenching is adopted in most parts with small cross sections; such steels are generally tempered or normalized at medium temperature after quenching or used in a case-hardened state; the method is mainly used for manufacturing springs and wear-resistant parts.
The production of high-carbon steel wire needs to carry out drawing processing to wire rod, and the drawing processing needs to pass through a drawing die with 8-12 times, and the required drawing stress of this in-process is great, especially when the steel wire diameter is less than 2mm, produces stress concentration easily in chuck position to because the drawing stress is great, often lead to the steel wire fracture, greatly reduced the efficiency that the steel wire was drawn.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a high-strength high-elasticity shape memory alloy chuck for drawing a high-carbon steel wire.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the high-strength high-elasticity shape memory alloy chuck for drawing the high-carbon steel wire comprises two chuck bodies, wherein the opposite surfaces of the two chuck bodies are connected with NiTi shape memory alloy plates through mounting plates, iron-penetrating layers are arranged on the opposite surfaces of the two NiTi shape memory alloy plates, limiting mechanisms are arranged on the opposite surfaces of the two mounting plates, and guide mechanisms matched with each other are arranged on the side surfaces of the two chuck bodies;
the limiting mechanism comprises a copper frame, a plurality of first springs and four heat absorbing plates, wherein the copper frame is fixedly connected to the clamping surface of the chuck main body, a plurality of heat dissipation holes are formed in the side surface of the copper frame, the four inner walls of the copper frame are respectively connected with the four heat absorbing plates through the plurality of first springs, the four heat absorbing plates are respectively fixed to the four side surfaces of the NiTi shape memory alloy plate, and the NiTi shape memory alloy plate is located in the inner ring of the copper frame.
Preferably, rubber blocks are fixed on the four inner walls of the copper frame, and the end parts of the rubber blocks are fixedly connected with the side surfaces of the NiTi shape memory alloy plates.
Preferably, the opposite surfaces of the two copper frames are respectively fixed with a limiting frame, and the distance between the two limiting frames is smaller than the distance between the two iron penetrating layers.
Preferably, the NiTi shape memory alloy plate and the chuck main body are riveted through rivets, a plurality of second riveting holes are formed in the NiTi shape memory alloy plate, a plurality of first riveting holes are formed in the contact surface of the chuck main body and the NiTi shape memory alloy plate, and the rivets are located in the first riveting holes and the second riveting holes.
Preferably, the iron-penetrating layers are attached to the surfaces of the NiTi shape memory alloy plates by adopting a double-glow plasma alloying technology, and tooth-shaped patterns are formed on the opposite surfaces of the two iron-penetrating layers.
Preferably, the guide mechanism comprises a connecting plate fixed on the side surface of the chuck main body, a fixing plate is fixedly connected on the side surface of the connecting plate, a threaded rod is inserted on the fixing plate, the threaded rod penetrates through the fixing plate and is rotationally connected with a connecting block, and buffer assemblies are arranged on opposite surfaces of the two connecting blocks.
Preferably, the through hole is formed in the fixing plate, a sliding rod is fixed on one surface of the connecting block, which is close to the fixing plate, the sliding rod is slidably mounted in the through hole, an opening is formed in the fixing plate, an inner thread sleeve is mounted in the opening, and threads of the threaded rod are sleeved in the inner thread sleeve.
Preferably, the buffer assembly comprises a sleeve arranged on the opposite surfaces of the two connecting blocks, a guide rod is sleeved in the sleeve in a sliding manner, a transverse plate is fixedly connected to the end part of the guide rod, a second spring is fixed between the sleeve and the transverse plate, the guide rod is positioned in a second spring inner ring, two sector plates are fixed on the opposite surfaces of the two transverse plates, a fixed shaft is fixed between every two sector plates, guide wheels are sleeved on the outer wall of the fixed shaft in a rotating manner, and the distance between the two guide wheels is smaller than the distance between two iron penetrating layers.
Preferably, the end part of the threaded rod is rotationally connected with a guard plate, and the guard plate is fixedly connected to one surface of the connecting block, which is close to the fixed plate.
Preferably, the clamping surface of the chuck main body is provided with a plurality of connecting holes, and the mounting plate is connected with the chuck main body through connecting bolts and the connecting holes.
Compared with the prior art, the invention has the beneficial effects that:
1: the invention applies the mechanical characteristics of NiTi shape memory alloy stress induced martensite reverse phase transformation to flexibly load the clamped high-carbon steel wire, and generates a stress platform in the loading process, namely the stress is unchanged along with the increase of deformation, so that the high-carbon steel wire is ensured not to generate stress concentration at the clamping head position, the steel wire is prevented from being broken, the drawing efficiency of the high-carbon steel wire is improved, a dual-glow plasma alloying technology is adopted to attach an iron-penetrating layer on the surface of the NiTi shape memory alloy plate, the surface hardness of the NiTi shape memory alloy plate is improved, the service life of the NiTi shape memory alloy plate is prolonged, and the NiTi shape memory alloy plate can utilize the excellent shape memory effect and super elasticity of the NiTi shape memory alloy plate after deformation so as to flexibly load the high-carbon steel wire.
2: according to the invention, when the NiTi shape memory alloy plate clamps the high-carbon steel wire by utilizing the iron penetrating layer to deform, the heat absorbing plate and the first springs are extruded, the first springs can provide a limiting force for the NiTi shape memory alloy plate, so that the clamping effect of the iron penetrating layer on the high-carbon steel wire is avoided, meanwhile, when the NiTi shape memory alloy plate is subjected to shape recovery, the NiTi shape memory alloy plate can be provided with a extrusion force to help the NiTi shape memory alloy plate to quickly recover the shape, the shape recovery speed of the NiTi shape memory alloy plate is improved, a large amount of heat generated in the frequent deformation process of the NiTi shape memory alloy plate can be transferred to the heat absorbing plate, the heat absorbing plate can absorb the heat generated in the deformation process of the NiTi shape memory alloy plate while providing a certain deformation limitation for the NiTi shape memory alloy plate, the NiTi shape memory alloy plate is prevented from deforming due to overhigh temperature or from being in place due to the shape recovery and the effect of counteracting stress of the NiTi shape memory alloy plate due to high temperature is avoided, and the heat absorbing plate can be transferred to a copper frame through the first springs, the heat absorbing plate and the heat absorbing plate can be continuously loaded on the NiTi shape memory alloy wire under the condition of high-carbon wire by utilizing the copper frame and the heat dissipating holes.
3: according to the invention, the two guide wheels can provide guide for the high-carbon steel wire flexibly loaded between the two NiTi shape memory alloy plates, so that the phenomenon of breakage caused by deflection of the high-carbon steel wire under the clamping of the two NiTi shape memory alloy plates is avoided, the levelness of the high-carbon steel wire flexibly loaded between the two NiTi shape memory alloy plates is ensured, the phenomenon that the clamping effect is influenced and the high-carbon steel wire is broken caused by deflection of the high-carbon steel wire when the high-carbon steel wire enters between the two NiTi shape memory alloy plates is avoided, the sleeve, the guide rod and the second spring are matched to provide a buffer force for the high-carbon steel wire between the two guide wheels, the high-carbon steel wire is prevented from being damaged due to overlarge pushing force of the high-carbon steel wire between the two guide wheels, and the drawing efficiency is prevented from being influenced.
Drawings
FIG. 1 is an isometric view of a high strength, high elastic shape memory alloy collet for high carbon steel wire drawing in accordance with the present invention;
FIG. 2 is a schematic structural view of a chuck body of a high-strength and high-elastic shape memory alloy chuck for high-carbon steel wire drawing according to the present invention;
FIG. 3 is a drawing head of a high-strength high-elastic shape memory alloy chuck for drawing high-carbon steel wires;
FIG. 4 is an enlarged view of a portion A of FIG. 3;
FIG. 5 is a schematic diagram showing the connection between a copper frame and a limiting frame of a high-strength and high-elastic shape memory alloy chuck for high-carbon steel wire drawing;
FIG. 6 is a schematic diagram showing the connection between a NiTi shape memory alloy plate and an iron-infiltrated layer of a high-strength and high-elastic shape memory alloy chuck for drawing high-carbon steel wires;
FIG. 7 is a schematic structural view of a guiding mechanism of a high-strength and high-elastic shape memory alloy chuck for high-carbon steel wire drawing according to the present invention;
FIG. 8 is a stress-strain diagram of a NiTi shape memory alloy plate of a high strength and high elastic shape memory alloy collet for high carbon steel wire drawing according to the present invention;
fig. 9 is a schematic diagram showing the connection between the NiTi shape memory alloy plate and the iron-penetrating layer of the high-strength and high-elasticity shape memory alloy chuck for drawing high-carbon steel wires.
In the figure: 1. a chuck body; 2. a mounting plate; 3. a copper frame; 4. a limit frame; 5. a NiTi shape memory alloy plate; 6. an iron-penetrating layer; 7. a first rivet hole; 8. a connection hole; 9. a heat radiation hole; 10. a connecting plate; 11. a fixing plate; 12. a connecting bolt; 13. a rivet; 14. a rubber block; 15. a first spring; 16. a heat absorbing plate; 17. a second rivet hole; 18. tooth-shaped patterns; 19. an internal thread sleeve; 20. a threaded rod; 21. a connecting block; 22. a sleeve; 23. a second spring; 24. a guide rod; 25. a slide bar; 26. a guard board; 27. a cross plate; 28. a sector plate; 29. a guide wheel; 30. and a fixed shaft.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1-9, a high-strength high-elastic shape memory alloy chuck for drawing high-carbon steel wires comprises two chuck bodies 1, wherein opposite surfaces of the two chuck bodies 1 are connected with NiTi shape memory alloy plates 5 through mounting plates 2, iron-penetrating layers 6 are arranged on opposite surfaces of the two NiTi shape memory alloy plates 5, limiting mechanisms are arranged on opposite surfaces of the two mounting plates 2, and mutually matched guide mechanisms are arranged on side surfaces of the two chuck bodies 1;
the limiting mechanism comprises a copper frame 3, a plurality of first springs 15 and four heat absorbing plates 16, wherein the copper frame 3 is fixedly connected to the clamping surface of the chuck main body 1, a plurality of heat dissipation holes 9 are formed in the side surface of the copper frame 3, four inner walls of the copper frame 3 are respectively connected with the four heat absorbing plates 16 through the plurality of first springs 15, the four heat absorbing plates 16 are respectively fixed to four side surfaces of the NiTi shape memory alloy plate 5, and the NiTi shape memory alloy plate 5 is located in the inner ring of the copper frame 3.
As a technical optimization scheme of the invention, rubber blocks 14 are fixed on four inner walls of the copper frame 3, the end parts of the rubber blocks 14 are fixedly connected with the side surfaces of the NiTi shape memory alloy plates 5, the rubber blocks 14 can provide a bridge for the connection between the NiTi shape memory alloy plates 5 and the copper frame 3, the situation that the connection between the copper frame 3 and the rest of the NiTi shape memory alloy plates 5 only depends on the first springs 15 to shake greatly is avoided, and the connection stability between the NiTi shape memory alloy plates 5 and the copper frame 3 is improved.
As a technical optimization scheme of the invention, the opposite surfaces of the two copper frames 3 are respectively fixed with the limiting frames 4, the distance between the two limiting frames 4 is smaller than the distance between the two iron-penetrating layers 6, and the limiting frames 4 can clamp the high-carbon steel wire when the NiTi shape memory alloy plates 5 deform excessively, so that the phenomenon that the clamping force on the high-carbon steel wire is insufficient due to the excessively large deformation of the NiTi shape memory alloy plates 5 and the high-carbon steel wire is separated from the two NiTi shape memory alloy plates 5 is avoided.
As a technical optimization scheme of the invention, the NiTi shape memory alloy plate 5 is riveted with the chuck main body 1 through the rivet 13, a plurality of second riveting holes 17 are formed in the NiTi shape memory alloy plate 5, a plurality of first riveting holes 7 are formed in the contact surface of the chuck main body 1 and the NiTi shape memory alloy plate 5, the rivet 13 is positioned in the first riveting holes 7 and the second riveting holes 17, the NiTi shape memory alloy plate 5 and the chuck main body 1 are connected through riveting, the connection stability between the NiTi shape memory alloy plate 5 and the chuck main body 1 is improved, and meanwhile, the NiTi shape memory alloy plate 5 can be conveniently disassembled, maintained and replaced in the later period, and the riveting mode is simple and stable and is convenient to operate.
As a technical optimization scheme of the invention, the iron-penetrating layer 6 is attached to the surface of the NiTi shape memory alloy plate 5 by adopting a double-glow plasma alloying technology, tooth-shaped patterns 18 are formed on the opposite surfaces of the two iron-penetrating layers 6, the iron-penetrating layer 6 is attached to the surface of the NiTi shape memory alloy plate 5 by adopting the double-glow plasma alloying technology, the surface hardness of the NiTi shape memory alloy plate 5 is improved, the service life of the NiTi shape memory alloy plate 5 is prolonged, the NiTi shape memory alloy plate 5 can utilize the excellent shape memory effect and superelasticity of the NiTi shape memory alloy plate 5 after being deformed to carry out shape recovery so as to flexibly load high-carbon steel wires, the tooth-shaped patterns 18 can increase the friction force between the iron-penetrating layer 6 and the high-carbon steel wires, the clamping stability of the high-carbon steel wires is improved, and the sliding phenomenon between the high-carbon steel wires and the iron-penetrating layer 6 is not easy to occur.
As a technical optimization scheme of the invention, the guide mechanism comprises a connecting plate 10 fixed on the side surface of the chuck main body 1, a fixing plate 11 is fixedly connected on the side surface of the connecting plate 10, a threaded rod 20 is inserted on the fixing plate 11, the threaded rod 20 penetrates through the fixing plate 11 and is rotationally connected with a connecting block 21, buffer assemblies are arranged on opposite surfaces of the two connecting blocks 21, the distance between the two guide wheels 29 can be conveniently adjusted by rotating the threaded rod 20, and the guide mechanism can be adjusted according to the specific diameter of a high-carbon steel wire, so that the use convenience of the guide mechanism is improved.
As a technical optimization scheme of the invention, a through hole is formed in the fixed plate 11, a slide bar 25 is fixed on one surface of the connecting block 21, which is close to the fixed plate 11, the slide bar 25 is slidably arranged in the through hole, an opening is formed in the fixed plate 11, an internal thread sleeve 19 is arranged in the opening, a threaded rod 20 is in threaded sleeve connection with the internal thread sleeve 19, and the slide bar 25 is slidably arranged in the through hole to provide guiding when the distance between the connecting block 21 and the fixed plate 11 is adjusted.
As a technical optimization scheme of the invention, the buffer assembly comprises the sleeve 22 which is arranged on the opposite surfaces of the two connecting blocks 21, the guide rod 24 is sleeved in the sleeve 22 in a sliding way, the transverse plate 27 is fixedly connected to the end part of the guide rod 24, the second spring 23 is fixed between the sleeve 22 and the transverse plate 27, the guide rod 24 is positioned in the inner ring of the second spring 23, the two sector plates 28 are respectively fixed on the opposite surfaces of the two transverse plates 27, the fixed shaft 30 is respectively fixed between the two sector plates 28, the guide wheels 29 are sleeved on the outer wall of the fixed shaft 30 in a rotating way, the distance between the two guide wheels 29 is smaller than the distance between the two iron-penetrating layers 6, the two guide wheels 29 can provide guide for a high-carbon steel wire which is flexibly loaded between the two NiTi shape memory alloy plates 5, the phenomenon that the high-carbon steel wire is deflected under the clamping of the two NiTi shape memory alloy plates 5 causes a fracture phenomenon is avoided, the high-carbon steel wire level degree of the high-carbon steel wire which is flexibly loaded between the two NiTi shape memory alloy plates 5 is ensured to enter between the two Ti shape memory plates 5, the high-carbon steel wire is prevented from being inclined and the high-carbon wire is prevented from being broken, the high-carbon steel wire is prevented from being pushed by the sleeve 24 and the high-carbon steel wire is prevented from being pushed by the high-carbon steel wire, and the high-carbon steel wire is prevented from being greatly sliding between the guide wheels 29 and the guide wheels from the high-carbon steel wire through the guide rod through the guide wheels.
As a technical optimization scheme of the invention, the end part of the threaded rod 20 is rotatably connected with the guard plate 26, the guard plate 26 is fixedly connected to one surface of the connecting block 21, which is close to the fixed plate 11, and the guard plate 26 can prevent the connecting block 21 from being excessively worn due to frequent friction between the end part of the threaded rod 20 and the connecting block 21, so that the protection of the connecting block 21 is improved.
As a technical optimization scheme of the invention, the clamping surface of the chuck main body 1 is provided with a plurality of connecting holes 8, and the mounting plate 2 is connected with the chuck main body 1 through the connecting bolts 12 and the connecting holes 8, so that the mounting plate 2 can be conveniently detached in the later stage to replace and maintain the mounting plate 2.
The NiTi shape memory alloy plate 5 in the invention can be an alloy plate with the thickness of 8mm, and Ni in the alloy plate is as follows: the molar ratio of Ti is 50.8:49.2, the plate is annealed at 700 ℃ and then rolled to 3mm thick, and then annealed at 400-450 ℃; and (5) performing wire cutting processing on the annealed plate to a size matched with the clamping head to obtain the NiTi shape memory alloy plate 5.
The iron-penetrating layer 6 in the invention is: the method adopts a double-glow plasma alloying technology to soak the iron layer 6 on the surface of the NiTi alloy at the contact surface, and comprises the following specific parameters: the temperature is kept at 950 ℃, the working air pressure is 35MPa, the polar distance is 10mm, and the pressure difference is 250V.
When the invention is used, two chuck bodies 1 are respectively arranged on two clamping surfaces of a drawing chuck; the high-carbon steel wire is put between two NiTi shape memory alloy plates 5 through two guide wheels 29 to flexibly load the high-carbon steel wire. The two guide wheels 29 can provide guidance for the high-carbon steel wire flexibly loaded between the two NiTi shape memory alloy plates 5, avoid the phenomenon of breakage caused by the deflection of the high-carbon steel wire under the clamping of the two NiTi shape memory alloy plates 5, ensure the levelness of the high-carbon steel wire flexibly loaded between the two NiTi shape memory alloy plates 5, avoid the phenomenon that the clamping effect is affected and the high-carbon steel wire is broken caused by the deflection of the high-carbon steel wire when the high-carbon steel wire enters between the two NiTi shape memory alloy plates 5, and avoid the phenomenon that the high-carbon steel wire is damaged due to overlarge pushing force of the high-carbon steel wire between the two guide wheels 29 by the sleeve 22, the guide rod 24 and the second spring 23. The high-carbon steel wires are placed on the two NiTi shape memory alloy plates 5 and then clamped by the two NiTi shape memory alloy plates 5 so as to facilitate the drawing of the high-carbon steel wires in the later period, the mechanical characteristics of stress induced martensite reverse phase transformation of the NiTi shape memory alloy are applied to flexibly load the clamped high-carbon steel wires, a stress platform is generated in the loading process, namely, the stress is unchanged along with the increase of deformation, so that the high-carbon steel wires are ensured not to generate stress concentration at the clamping head positions, the steel wires are prevented from being broken, the drawing efficiency of the high-carbon steel wires is improved, the iron penetrating layer 6 is attached to the surfaces of the NiTi shape memory alloy plates 5 by adopting a double-glow plasma alloying technology, the surface hardness of the NiTi shape memory alloy plates 5 is improved, the service life of the NiTi shape memory alloy plates 5 is prolonged, and the NiTi shape memory alloy plates 5 can utilize the excellent shape memory effect and super elasticity of the self-body after deformation so as to flexibly load the high-carbon steel wires. When the NiTi shape memory alloy plate 5 clamps the high-carbon steel wire by utilizing the iron-penetrating layer 6 to deform, the heat-absorbing plate 16 and the first spring 15 are extruded, and the first spring 15 can provide a limiting force for the NiTi shape memory alloy plate 5, so that the problem that the clamping effect of the iron-penetrating layer 6 on the high-carbon steel wire is influenced due to overlarge deformation of the NiTi shape memory alloy plate 5 is avoided; meanwhile, when the NiTi shape memory alloy plate 5 is subjected to shape recovery, a extrusion force can be provided for the NiTi shape memory alloy plate 5 to help the NiTi shape memory alloy plate 5 to quickly perform shape recovery, so that the shape recovery speed of the NiTi shape memory alloy plate 5 is improved; a large amount of heat generated in the deformation process of the NiTi shape memory alloy plate 5 can be transferred to the heat absorbing plate 16, the heat absorbing plate 16 can absorb the heat generated in the deformation process of the NiTi shape memory alloy plate 5 while providing a certain deformation limit for the NiTi shape memory alloy plate 5, so that the deformation of the NiTi shape memory alloy plate 5 caused by overhigh temperature or the shape recovery failure caused by the overhigh temperature is avoided, and the stress counteracting effect of the NiTi shape memory alloy plate 5 is influenced by the high temperature; and the heat absorption plate 16 can transfer heat to the copper frame 3 through a plurality of first springs 15, and the copper frame 3 and the heat dissipation holes 9 formed in the copper frame are utilized to quickly dissipate the heat, so that the NiTi shape memory alloy plate 5 can be continuously subjected to heat absorption and temperature reduction, and the NiTi shape memory alloy plate 5 is ensured to flexibly load high-carbon steel wires at a proper temperature.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (6)
1. The high-strength high-elasticity shape memory alloy chuck for drawing the high-carbon steel wire comprises two chuck main bodies (1), and is characterized in that the opposite surfaces of the two chuck main bodies (1) are connected with NiTi shape memory alloy plates (5) through mounting plates (2), iron penetrating layers (6) are arranged on the opposite surfaces of the two NiTi shape memory alloy plates (5), limiting mechanisms are arranged on the opposite surfaces of the two mounting plates (2), and guide mechanisms matched with each other are arranged on the side surfaces of the two chuck main bodies (1);
the limiting mechanism comprises a copper frame (3), a plurality of first springs (15) and four heat absorbing plates (16), wherein the copper frame (3) is fixedly connected to the clamping surface of the chuck main body (1), a plurality of heat dissipation holes (9) are formed in the side surface of the copper frame (3), four inner walls of the copper frame (3) are respectively connected with the four heat absorbing plates (16) through the plurality of first springs (15), the four heat absorbing plates (16) are respectively fixed on four side surfaces of the NiTi shape memory alloy plate (5), and the NiTi shape memory alloy plate (5) is positioned in the inner ring of the copper frame (3);
the guide mechanism comprises a connecting plate (10) fixed on the side surface of the chuck main body (1), a fixed plate (11) is fixedly connected on the side surface of the connecting plate (10), a threaded rod (20) is inserted on the fixed plate (11), the threaded rod (20) penetrates through the fixed plate (11) and is rotationally connected with a connecting block (21), and buffer assemblies are arranged on opposite surfaces of the two connecting blocks (21);
the fixing plate (11) is provided with a through hole, one surface of the connecting block (21) close to the fixing plate (11) is fixed with a sliding rod (25), the sliding rod (25) is slidably arranged in the through hole, the fixing plate (11) is provided with an opening, an inner thread sleeve (19) is arranged in the opening, and a threaded rod (20) is in threaded sleeve connection with the inner thread sleeve (19);
the buffer assembly comprises a sleeve (22) arranged on opposite faces of two connecting blocks (21), a guide rod (24) is sleeved in the sleeve (22) in a sliding manner, a transverse plate (27) is fixedly connected to the end part of the guide rod (24), a second spring (23) is fixed between the sleeve (22) and the transverse plate (27), the guide rod (24) is positioned at the inner ring of the second spring (23), two sector plates (28) are fixed on opposite faces of the two transverse plates (27), a fixed shaft (30) is fixed between each two sector plates (28), guide wheels (29) are sleeved on the outer wall of the fixed shaft (30) in a rotating manner, and the distance between the two guide wheels (29) is smaller than the distance between two iron-penetrating layers (6);
the end part of the threaded rod (20) is rotationally connected with a guard plate (26), and the guard plate (26) is fixedly connected to one surface of the connecting block (21) close to the fixed plate (11).
2. The high-strength high-elasticity shape memory alloy chuck for drawing high-carbon steel wires according to claim 1, wherein rubber blocks (14) are fixed on four inner walls of the copper frame (3), and the ends of the rubber blocks (14) are fixedly connected with the side surfaces of the NiTi shape memory alloy plates (5).
3. The high-strength high-elasticity shape memory alloy chuck for drawing high-carbon steel wires according to claim 1, wherein the opposite surfaces of the two copper frames (3) are respectively fixed with a limit frame (4), and the distance between the two limit frames (4) is smaller than the distance between the two iron-penetrating layers (6).
4. The high-strength high-elasticity shape memory alloy chuck for drawing high-carbon steel wires according to claim 1, wherein the NiTi shape memory alloy plate (5) is riveted with the chuck main body (1) through rivets (13), a plurality of second riveting holes (17) are formed in the NiTi shape memory alloy plate (5), a plurality of first riveting holes (7) are formed in the contact surface of the chuck main body (1) and the NiTi shape memory alloy plate (5), and the rivets (13) are located in the first riveting holes (7) and the second riveting holes (17).
5. The high-strength high-elasticity shape memory alloy chuck for drawing high-carbon steel wires according to claim 1, wherein the iron-penetrating layers (6) are attached to the surface of the NiTi shape memory alloy plate (5) by adopting a double-glow plasma alloying technology, and tooth-shaped patterns (18) are formed on opposite surfaces of the two iron-penetrating layers (6).
6. The high-strength high-elasticity shape memory alloy chuck for drawing high-carbon steel wires according to claim 1, wherein the clamping surface of the chuck main body (1) is provided with a plurality of connecting holes (8), and the mounting plate (2) is connected with the chuck main body (1) through connecting bolts (12) and the connecting holes (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111174532.3A CN113953338B (en) | 2021-10-09 | 2021-10-09 | High-strength high-elasticity shape memory alloy chuck for drawing high-carbon steel wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111174532.3A CN113953338B (en) | 2021-10-09 | 2021-10-09 | High-strength high-elasticity shape memory alloy chuck for drawing high-carbon steel wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113953338A CN113953338A (en) | 2022-01-21 |
| CN113953338B true CN113953338B (en) | 2024-03-26 |
Family
ID=79463715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111174532.3A Active CN113953338B (en) | 2021-10-09 | 2021-10-09 | High-strength high-elasticity shape memory alloy chuck for drawing high-carbon steel wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113953338B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB778087A (en) * | 1954-09-29 | 1957-07-03 | Pryor Edward & Son | Improvements in or relating to wire-drawing machine jaws |
| JPH0523730A (en) * | 1991-07-22 | 1993-02-02 | Tanisaka Tekkosho:Kk | Device for chucking |
| US6241231B1 (en) * | 1996-10-07 | 2001-06-05 | Jergens, Inc. | Method of clamping a workpiece |
| KR20110082443A (en) * | 2010-01-11 | 2011-07-19 | 한국기계연구원 | Collet chuck using shape memory alloy |
| KR20130042999A (en) * | 2011-10-19 | 2013-04-29 | (주) 테크노라이즈 | Tool chucking device by using shape memory alloy |
| KR101546492B1 (en) * | 2015-04-17 | 2015-08-25 | 주식회사 율촌 | Pipe Inner Side Clamping Apparatus for Puller |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101136382B1 (en) * | 2009-12-08 | 2012-04-18 | 한국기계연구원 | tool holder using shape memory alloy and tool holding method |
-
2021
- 2021-10-09 CN CN202111174532.3A patent/CN113953338B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB778087A (en) * | 1954-09-29 | 1957-07-03 | Pryor Edward & Son | Improvements in or relating to wire-drawing machine jaws |
| JPH0523730A (en) * | 1991-07-22 | 1993-02-02 | Tanisaka Tekkosho:Kk | Device for chucking |
| US6241231B1 (en) * | 1996-10-07 | 2001-06-05 | Jergens, Inc. | Method of clamping a workpiece |
| KR20110082443A (en) * | 2010-01-11 | 2011-07-19 | 한국기계연구원 | Collet chuck using shape memory alloy |
| KR20130042999A (en) * | 2011-10-19 | 2013-04-29 | (주) 테크노라이즈 | Tool chucking device by using shape memory alloy |
| KR101546492B1 (en) * | 2015-04-17 | 2015-08-25 | 주식회사 율촌 | Pipe Inner Side Clamping Apparatus for Puller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113953338A (en) | 2022-01-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3399057A1 (en) | Ultrasound enhancing method for prolonging fatigue life of metal workpiece and use thereof | |
| US20020187020A1 (en) | Nitinol washers | |
| US8783344B2 (en) | Integral wear pad and method | |
| US10442269B2 (en) | Hollow stabilizer | |
| CN113953338B (en) | High-strength high-elasticity shape memory alloy chuck for drawing high-carbon steel wire | |
| CN108103297B (en) | A kind of heat treatment method of electric tool high-strength bolt | |
| JP2004243511A (en) | Jaw arm member for compression tool | |
| CN108869594A (en) | A kind of high stress, the variable cross-section single-leaf spring and its manufacturing method of high life | |
| KR102240463B1 (en) | Manufacturing method of a lightweight piston rod with improved corrosion resistance of a shock-absorber | |
| SE507439C2 (en) | Friction welded drill rod and method of manufacturing the drill rod | |
| CN209923384U (en) | Fixing device for air-cooled quenching of high-chromium alloy wear-resistant part | |
| JP2012112275A (en) | Clamp pad for machining cylinder head, and cylinder head machining method | |
| TWI816029B (en) | Hollow shaft component and rolling device | |
| CN110144436B (en) | Laser quenching method of clamping jaw | |
| CN105312762B (en) | A kind of friction welding (FW) becomes size welding tooling and its welding method | |
| CN209274825U (en) | A kind of bicycle chain damper | |
| CN220054848U (en) | Oil quenched steel wire suitable for high-strength work | |
| CN212860986U (en) | Leaf spring with totally enclosed high strength package ear | |
| CN109505906B (en) | A bumper shock absorber for automatic ultrasonic impact eliminates welding residual stress machine | |
| CN210560611U (en) | Inner gear ring pressure quenching device | |
| CN209743468U (en) | Chain shock absorber | |
| US9239076B2 (en) | Method of making a bearing ring, a bearing ring and a bearing | |
| TWI628371B (en) | Method for manufacturing modified brake disc | |
| JP6547284B2 (en) | Ball screw | |
| CN112193993A (en) | Clamp sheath with metal rubber composite structure for cold-rolled hoisting steel coil overhead traveling crane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |