CN113685427A - Fastening piece for household appliance manufacturing and processing method thereof - Google Patents
Fastening piece for household appliance manufacturing and processing method thereof Download PDFInfo
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- CN113685427A CN113685427A CN202110466995.0A CN202110466995A CN113685427A CN 113685427 A CN113685427 A CN 113685427A CN 202110466995 A CN202110466995 A CN 202110466995A CN 113685427 A CN113685427 A CN 113685427A
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- fastening
- seat
- punching
- wire
- fastening screw
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 238000003672 processing method Methods 0.000 title abstract description 7
- 238000010030 laminating Methods 0.000 claims abstract description 44
- 230000000694 effects Effects 0.000 claims abstract description 6
- 238000004080 punching Methods 0.000 claims description 32
- 238000005406 washing Methods 0.000 claims description 19
- 238000005246 galvanizing Methods 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 13
- 238000005520 cutting process Methods 0.000 claims description 9
- 239000002253 acid Substances 0.000 claims description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical group [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 239000003607 modifier Substances 0.000 claims description 6
- 239000000047 product Substances 0.000 claims description 6
- 238000010791 quenching Methods 0.000 claims description 6
- 230000000171 quenching effect Effects 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 230000004913 activation Effects 0.000 claims description 3
- 238000000137 annealing Methods 0.000 claims description 3
- 238000000861 blow drying Methods 0.000 claims description 3
- 238000010622 cold drawing Methods 0.000 claims description 3
- 230000002708 enhancing effect Effects 0.000 claims description 3
- 238000005242 forging Methods 0.000 claims description 3
- 235000011389 fruit/vegetable juice Nutrition 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000000314 lubricant Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000001103 potassium chloride Substances 0.000 claims description 3
- 235000011164 potassium chloride Nutrition 0.000 claims description 3
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 239000011265 semifinished product Substances 0.000 claims description 3
- 238000010008 shearing Methods 0.000 claims description 3
- 238000001179 sorption measurement Methods 0.000 claims description 3
- 238000005491 wire drawing Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 229910000734 martensite Inorganic materials 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 2
- 238000005238 degreasing Methods 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 abstract description 7
- 230000008093 supporting effect Effects 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 abstract description 2
- 230000006978 adaptation Effects 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010273 cold forging Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 235000003270 potassium fluoride Nutrition 0.000 description 1
- 239000011698 potassium fluoride Substances 0.000 description 1
- NROKBHXJSPEDAR-UHFFFAOYSA-M potassium fluoride Inorganic materials [F-].[K+] NROKBHXJSPEDAR-UHFFFAOYSA-M 0.000 description 1
- -1 potassium fluoride modified zinc Chemical class 0.000 description 1
Images
Classifications
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- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B47/00—Suction cups for attaching purposes; Equivalent means using adhesives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F11/00—Cutting wire
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F45/00—Wire-working in the manufacture of other particular articles
- B21F45/16—Wire-working in the manufacture of other particular articles of devices for fastening or securing purposes
-
- 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
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0093—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for screws; for bolts
-
- 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
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
Abstract
The invention discloses a fastening piece for household appliance manufacturing and a processing method thereof, belonging to the technical field of household appliance equipment. According to the invention, through the matching of the connecting mechanism and the laminating mechanism, the multi-axis adjusting capacity of the connecting mechanism is adapted to the laminating requirement of the laminating mechanism, the sealing and supporting effect on the fastening position is ensured through the flexible laminating mechanism, the laminating and supporting on the screwed fastening screw and the fastening piece can be effectively improved through the clamping mechanism and the limiting clamping hook on the top, and the stability and the energy absorption effect of the whole assembly and fixation are ensured.
Description
Technical Field
The invention belongs to the technical field of household appliances, and particularly relates to a fastening piece for household appliance manufacturing and a processing method thereof.
Background
Household appliances are electrical and electronic equipment used in families and are used for improving the production and life environment of people, and a circuit board and a chip of the household appliance are assembled by using a fastener.
Chinese patent document CN107202060A discloses a fastener comprising a nut with a threaded bore, the nut comprising a head at one end, a cylindrical outer surface and a tapered ramp at the other end; a bolt including a head, a threaded portion engaged with the threaded bore, a recess alongside the threaded head, and an enlarged shank between the threads and the recess, wherein the recess has an outer diameter less than the major diameter of the threaded bore of the nut, and wherein the shank has an outer diameter greater than the major diameter of the bolt threads; and the sleeve is provided with a non-threaded opening positioned between the tapered inclined plane and the head of the bolt, wherein one end of the sleeve is curled into the concave part, so that the inner diameter of the curled sleeve opening is smaller than the major diameter of the thread on the bolt, but certain defects still exist in actual use, such as lack of support adjustment requirements on the position near the fastener, easily causing the fracture of a joint part caused by overlarge absorption stress of a fastening and attaching part when the circuit board is impacted, and not well meeting the fastening and processing requirements.
Disclosure of Invention
The invention aims to: the fastening piece for manufacturing the household electrical appliance and the processing method thereof are provided in order to solve the problem that the supporting and adjusting requirements on the position near the fastening piece are lacked, and the fracture of a connecting part is caused by overlarge absorption stress of a fastening and attaching part when a circuit board is impacted.
In order to achieve the purpose, the invention adopts the following technical scheme:
a fastening piece for household appliance manufacturing comprises a fastening seat and a fastening screw in threaded connection with the fastening seat, wherein a sleeving ring is fixedly connected to the outer wall of the fastening seat, a connecting mechanism can be rotatably connected to the periphery of the sleeving ring, an adsorption type laminating mechanism is movably connected to the top of the connecting mechanism, a clamping mechanism is movably connected to the tail end of the fastening screw, and the clamping mechanism is fixedly connected to the top of the sleeving ring through a limiting hoop;
coupling mechanism includes the connecting block of fixed connection in cup joint ring one side, and the axis of rotation is deflectable between the connecting block of both sides and is connected with the connection gasket, and connects the gasket endotheca and be equipped with laminating mechanism, laminating mechanism is including the laminating sucking disc, laminating sucking disc bottom is passed through elastic component and fixing bolt swing joint at connection gasket top, latch mechanism includes the connecting rod, and connecting rod top adjustable mounting has spacing pothook, and just spacing pothook is laminated mutually with bottom fastening seat, and connecting rod bottom swing joint is in spacing hoop one side.
As a further description of the above technical solution:
the connecting device is characterized in that a rotating shaft is fixedly connected to one side of the connecting gasket, a pin shaft is hinged to the inner cavity of the rotating shaft, two ends of the pin shaft are fixedly connected with one side of the connecting block in a corresponding position respectively, the connecting gasket is an elastic metal sheet, an opening is formed in one side of the connecting gasket, and the opening is sleeved with the laminating mechanism.
As a further description of the above technical solution:
laminating sucking disc top fixedly connected with screw thread seat, the screw thread seat passes connecting pad and threaded connection has fixing bolt, and fixing bolt and the laminating of connecting pad one side mutually, screw thread seat lateral wall cover is equipped with the elastic component, the elastic component both sides laminate mutually with connecting pad and laminating sucking disc one side respectively, the connecting piece is elasticity plastic packing ring.
As a further description of the above technical solution:
the connecting rod is characterized in that an articulated piece is fixedly connected to one side of the connecting rod, a limiting clamping hook is fixedly connected to one side of the articulated piece, an articulated seat is fixedly connected to the bottom end of the connecting rod, the articulated seat is fixedly connected to the outside of the limiting hoop, and the cross section of the limiting clamping hook is L-shaped.
A processing method of a fastener for manufacturing household appliances specifically comprises the following steps:
s1, annealing the raw materials for preparing the fastening piece and the fastening screw, heating to a proper temperature, keeping for a certain time, slowly cooling, and reserving juice for later use;
s2, hanging the product to be processed in a furnace, keeping the wire at 650-725 ℃ for 3-7h after a furnace cover is tightly covered, cooling the wire to the normal temperature along with the furnace, placing the wire in a hydrochloric acid tank for acid washing, washing the wire with water after acid washing, and coating a lubricant;
s3, cold-drawing the wire rod to the required wire diameter through a wire drawing machine, and carrying out shelling treatment;
s4, stamping and forming the fastening screw, forging the wire rod in a cold room to obtain the shape and the length of a semi-finished product, forming the head of the product by cutting and first punching, and preparing the fastening screw by second punching and third punching;
s5, punch forming of the fastening seat, punching, matching of an inner cutting die and a shearing knife of the wire, cutting the wire into blanks, shaping the cut blanks through punching equipment, pushing out the blanks through a rear punching rod, punching for the second time, moving the blanks to a second punching mechanism for further shaping, enhancing the flattening and angle saturation effects of the first punching, and performing triple operation, namely, after the third punching, extruding the blanks again, and adjusting the thickness of the fastening seat;
s6, after the fastening screw and the fastening seat are punched, the required thread is achieved through rolling or tapping;
s7, performing heat treatment on the prepared fastening seat and the fastening screw, heating the material for quenching after normalizing the fastening seat and the fastening screw at high temperature, then quenching by water or oil, and heating to 400-500 ℃ for high-temperature tempering;
s8, hot-dip galvanizing is carried out, after the tempered fastening screw and the fastening seat are kept stand to remove oil, washing and impurity removal are carried out, activation treatment is carried out, the activated fastening screw and the activated fastening seat are immersed in a horizontal roller, galvanizing liquid and a modifier are added, the modifier is a potassium chloride galvanizing brightener, the roller rotates to complete roll galvanizing on the fastening screw and the fastening seat, after roll galvanizing, after washing again, air duct blow-drying is carried out at a washing discharge end, and preparation is completed.
As a further description of the above technical solution:
the high-temperature normalizing temperature of S7 is 850 ℃, and the raw material steel is martensite steel.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the invention, through the matching of the connecting mechanism and the laminating mechanism, the multi-axis adjusting capacity of the connecting mechanism is adapted to the laminating requirement of the laminating mechanism, the sealing and supporting effect on the fastening position is ensured through the flexible laminating mechanism, the laminating and supporting on the screwed fastening screw and the fastening piece can be effectively improved through the clamping mechanism and the limiting clamping hook on the top, and the stability and the energy absorption effect of the whole assembly and fixation are ensured.
2. According to the invention, through the designed connecting mechanism, the connecting gasket can deflect through the rear-side rotating shaft, the rotating shaft can drive the front-side connecting gasket and the laminating mechanism to adjust the relative offset angle after rotating, so that the offset angle of the laminating mechanism can be adjusted through the connecting gasket and the rotating shaft, the laminating support tightness of the periphery of the fastening seat and the fastening screw is improved, when the household appliance is impacted, the fastening screw and the periphery of the fastening seat can absorb the impact force through the connecting mechanism and the bottom laminating sucker, the elastic piece can adapt to absorb the impact of the fastening position, the fastening position is prevented from being broken, and the fixing stability after assembly is effectively ensured.
3. According to the invention, through the designed attaching mechanism, the attaching sucker can be attached to the corresponding position of the circuit board in an attaching mode, the relative position of the attaching gasket can be adjusted through the thread meshing depth of the threaded seat and the fixing bolt, the attaching sucker is adaptive to the attaching of the irregular surface position of the inner cavity of the household appliance, and the fixing and energy-absorbing requirements of the fastening position are improved.
4. According to the invention, through the designed clamping mechanism, the limiting hoop can be preassembled to the corresponding position of the inner cavity of the household appliance, after the limiting hoop is embedded into the clamping mechanism, the peripheral hooks can carry out occlusion limiting on the periphery of the top surface of the fastening seat through deflection of the hinged piece, and when the fastening screw is screwed in, the hooks can be ensured to pass through hinged occlusion between the hinged piece and the tail end of the connecting rod and the hinged seat through lower stress, so that occlusion fixation on the internal fastening seat is improved, detachable arrangement of the fastening seat is realized, the durability of fastening assembly of the household appliance is improved, and the customized replaceable maintenance capability is improved.
5. According to the invention, when the fastening screw and the fastening seat are prepared, the oxidation layer in the raw materials can be removed through acid washing treatment, the strength of the fastening piece and the fastening screw can be improved through cold forging, the enhancement modification is realized through heat treatment, the integral wear resistance and corrosion resistance are improved through hot dip galvanizing, the oxidation resistance after assembly is improved, and the preparation requirement is met.
Drawings
Fig. 1 is a schematic perspective view of a fastening member for manufacturing home appliances according to the present invention;
fig. 2 is a schematic view of an assembly structure of a fastening member for home appliance manufacturing according to the present invention;
FIG. 3 is a schematic perspective view of a spacing clip of a fastening device for manufacturing household electrical appliances according to the present invention;
FIG. 4 is a schematic perspective view of a fastening mechanism for manufacturing household electrical appliances according to the present invention;
FIG. 5 is a schematic view of an assembly structure of a bonding mechanism of a fastening member for home appliance manufacturing according to the present invention;
fig. 6 is a schematic view of an assembly structure of a clamping mechanism of a fastening piece for home appliance manufacturing according to the present invention.
Illustration of the drawings:
1. a sleeving connection ring; 2. a connecting mechanism; 201. connecting a gasket; 202. a rotating shaft; 203. connecting blocks; 3. a fitting mechanism; 301. fixing the bolt; 302. an elastic member; 303. a threaded seat; 304. adhering a sucker; 4. a fastening seat; 5. a limiting hoop; 6. a clamping mechanism; 601. a limit hook; 602. an articulation member; 603. a connecting rod; 604. a hinged seat; 7. and (5) fastening the screw.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Referring to fig. 1-6, the present invention provides a technical solution: a fastening piece for household appliance manufacturing comprises a fastening seat 4 and a fastening screw 7 in threaded connection with the fastening seat, wherein the outer wall of the fastening seat 4 is fixedly connected with a sleeving ring 1, the periphery of the sleeving ring 1 can be rotatably connected with a connecting mechanism 2, the top of the connecting mechanism 2 is movably connected with an adsorption type laminating mechanism 3, the tail end of the fastening screw 7 is movably connected with a clamping mechanism 6, and the clamping mechanism 6 is fixedly connected to the top of the sleeving ring 1 through a limiting hoop 5;
the connecting mechanism 2 comprises a connecting block 203 fixedly connected to one side of the sleeving ring 1, a connecting gasket 201 is connected between the connecting blocks 203 on the two sides in a deflecting mode through a rotating shaft 202, a laminating mechanism 3 is sleeved in the connecting gasket 201 and comprises a laminating sucker 304, the bottom of the laminating sucker 304 is movably connected to the top of the connecting gasket 201 through an elastic piece 302 and a fixing bolt 301, the clamping mechanism 6 comprises a connecting rod 603, a limiting hook 601 is adjustably mounted at the top of the connecting rod 603, the limiting hook 601 is attached to a bottom fastening seat 4, the bottom of the connecting rod 603 is movably connected to one side of a limiting hoop 5, a rotating shaft 202 is fixedly connected to one side of the connecting gasket 201, a pin shaft is hinged to the inner cavity of the rotating shaft 202, two ends of the pin shaft are fixedly connected with the corresponding positions on one side of the connecting block 203 respectively, the connecting gasket 201 is an elastic metal sheet, and an opening is formed in one side of the connecting gasket 201, and the opening is sleeved with the attaching mechanism 3.
The implementation mode is specifically as follows: the round pin axle between the connecting block 203 can guarantee to the multiaxis rotation laminating ability of axis of rotation 202, and laminating needs can be guaranteed to the connecting pad 201 of elasticity to laminating sucking disc 304 can with the absorption laminating needs of household electrical appliances inner wall, and the stability that spacing pothook 601 deflected and removed can be guaranteed to connecting rod 603, and the preferred height of spacing hoop 5 of length of connecting rod 603, guarantee the spacing needs of interlock.
Laminating sucking disc 304 top fixedly connected with screw thread seat 303, screw thread seat 303 passes connecting pad 201 and threaded connection has fixing bolt 301, and fixing bolt 301 laminates with connecting pad 201 one side mutually, screw thread seat 303 lateral wall cover is equipped with elastic component 302, elastic component 302 both sides laminate with connecting pad 201 and laminating sucking disc 304 one side respectively mutually, the connecting piece is elasticity plastic packing ring, connecting rod 603 one side fixedly connected with articulated elements 602, articulated elements 602 one side fixedly connected with spacing pothook 601, the articulated seat 604 of connecting rod 603 bottom fixedly connected with, articulated seat 604 fixed connection is outside at spacing hoop 5, the shape of cross section of spacing pothook 601 is L shape.
As shown in fig. 2 to 6, the embodiment specifically is: the elastic part 302 can realize the sliding limit of the threaded column in the opening at the top of the connecting gasket 201, and then can absorb the impact force of the bottom attached to the sucker 304, so as to improve the limit support energy absorption on the periphery, and the elastic part 302 is preferably a plastic gasket, so that the assembly of an appropriate elastic IDE plastic gasket can be carried out as required;
and as shown in 4, laminating sucking disc 304 can be through reverse inserting put into connecting pad 201 open position to correspond the position through top laminating sucking disc 304 and top and laminate and adsorb, then can be through the fixed adaptation effect of two-way reverse regulation adaptation to the domestic appliance shell inside.
A processing method of a fastener for manufacturing household appliances specifically comprises the following steps:
s1, annealing the raw materials for preparing the fastening seat 4 and the fastening screw 7, heating to a proper temperature, keeping for a certain time, slowly cooling, and reserving juice for later use;
s2, hanging the product to be processed in a furnace, keeping the wire at 650-725 ℃ for 3-7h after a furnace cover is tightly covered, cooling the wire to the normal temperature along with the furnace, placing the wire in a hydrochloric acid tank for acid washing, washing the wire with water after acid washing, and coating a lubricant;
s3, cold-drawing the wire rod to the required wire diameter through a wire drawing machine, and carrying out shelling treatment;
s4, stamping and forming the fastening screw 7, forging the wire rod through a cold chamber to obtain the shape and the length of a semi-finished product, forming the head of the product through cutting and first punching, and preparing the fastening screw 7 through second punching and third punching;
s5, punch forming of the fastening seat 4, punching, matching of an inner cutting die and a shearing knife of the wire, cutting the wire into blanks, shaping the cut blanks through punching equipment, pushing out the blanks through a rear punching rod, punching for the second time, moving the blanks to a second punching mechanism for further shaping, enhancing the flattening and angle saturation effects of the first punching, and performing triple operation, namely, after the third punching, extruding the blanks again, and adjusting the thickness of the fastening seat 4;
s6, after the fastening screw 7 and the fastening seat 4 are punched, the required thread is achieved by rolling or tapping;
s7, carrying out heat treatment on the prepared fastening seat 4 and the fastening screw 7, heating the material for quenching after normalizing the fastening seat 4 and the fastening screw 7 at high temperature, then quenching by water or oil, and heating to 400-500 ℃ for high-temperature tempering;
s8, hot-dip galvanizing is carried out, after the tempered fastening screw 7 and the fastening seat 4 are kept stand to remove oil, washing is carried out to remove impurities, then activation treatment is carried out, the activated fastening screw 7 and the activated fastening seat 4 are immersed in a horizontal roller, galvanizing liquid and a modifier are added, the modifier is a potassium chloride galvanizing brightener, the roller rotates to complete roll galvanizing on the fastening screw 7 and the fastening seat 4, after roll galvanizing, after washing again, air duct blow-drying is carried out at a washing discharge end, and preparation is completed.
The implementation mode is specifically as follows: through the preparation technology of the fastening screw 7 and the fastening seat 4, the wear-resisting level and the oxidation resistance of the surface coating strength are improved, the brightness level and the smoothness of a plating layer are improved through the potassium fluoride modified zinc plating brightener, and the overall durability is improved.
The working principle is as follows: during the use, with spacing hoop 5 in the pre-buried shell spare of shell punching press in, and bury in spacing hoop 5 fastening seat 4, and rotate all around department connecting rod 603 and drive the bottom round pin axle and rotate around articulated seat 604, articulated seat 604 rotates and drives top connecting rod 603 and the fastening seat 4 of burying to laminate, fastening seat 4 can realize the deflection adaptation to articulated elements 602 through the laminating with spacing kelly, after the terminal laminating of fastening seat 4, through settle the circuit board position of punching a hole outside fastening seat 4, insert screw thread seat 303 and laminating sucking disc 304 with connecting pad 201 top opening all around of cover ring 1, after laminating sucking disc 304 and the circuit board position absorption that corresponds, cup joint elastic component 302 outside screw thread seat 303, and assemble through twisting fixing bolt 301, the fixing is accomplished.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. The fastening piece for the household appliance manufacturing comprises a fastening seat (4) and a fastening screw (7) in threaded connection with the fastening seat, and is characterized in that a sleeving ring (1) is fixedly connected to the outer wall of the fastening seat (4), a connecting mechanism (2) can be rotatably connected to the periphery of the sleeving ring (1), an adsorption type laminating mechanism (3) is movably connected to the top of the connecting mechanism (2), a clamping mechanism (6) is movably connected to the tail end of the fastening screw (7), and the clamping mechanism (6) is fixedly connected to the top of the sleeving ring (1) through a limiting hoop (5);
coupling mechanism (2) include connecting block (203) of fixed connection in cup joint ring (1) one side, and axis of rotation (202) deflectable connection has connecting pad (201) between both sides connecting block (203), and connecting pad (201) endotheca is equipped with laminating mechanism (3), laminating mechanism (3) are including laminating sucking disc (304), laminating sucking disc (304) bottom is through elastic component (302) and fixing bolt (301) swing joint at connecting pad (201) top, clamping mechanism (6) are including connecting rod (603), and connecting rod (603) top is adjustable installs spacing pothook (601), and just spacing pothook (601) laminate mutually with bottom fastening seat (4), and connecting rod (603) bottom swing joint is in spacing hoop (5) one side.
2. The fastening piece for manufacturing the household electrical appliance according to claim 1, wherein a rotating shaft (202) is fixedly connected to one side of the connecting gasket (201), a pin shaft is hinged to an inner cavity of the rotating shaft (202), two ends of the pin shaft are fixedly connected to corresponding positions of one side of the connecting block (203), the connecting gasket (201) is an elastic metal sheet, an opening is formed in one side of the connecting gasket (201), and the opening is sleeved with the attaching mechanism (3).
3. The fastener for the household appliance manufacturing according to claim 1, wherein a threaded seat (303) is fixedly connected to the top of the attaching suction cup (304), the threaded seat (303) penetrates through the connecting gasket (201) and is in threaded connection with a fixing bolt (301), the fixing bolt (301) is attached to one side of the connecting gasket (201), an elastic part (302) is sleeved on the outer side wall of the threaded seat (303), two sides of the elastic part (302) are respectively attached to one sides of the connecting gasket (201) and the attaching suction cup (304), and the connecting piece is an elastic plastic washer.
4. The fastening piece for manufacturing household electrical appliances according to claim 1, wherein one side of the connecting rod (603) is fixedly connected with a hinge member (602), one side of the hinge member (602) is fixedly connected with a limiting hook (601), the bottom end of the connecting rod (603) is fixedly connected with a hinge base (604), the hinge base (604) is fixedly connected to the outside of the limiting hoop (5), and the cross section of the limiting hook (601) is L-shaped.
5. The method for processing a fastener for home appliance manufacture according to any one of claims 1 to 4, comprising the following steps:
s1, annealing the raw materials for preparing the fastening seat (4) and the fastening screw (7), heating to a proper temperature, keeping for a certain time, slowly cooling, and reserving juice for later use;
s2, hanging the product to be processed in a furnace, keeping the wire at 650-725 ℃ for 3-7h after a furnace cover is tightly covered, cooling the wire to the normal temperature along with the furnace, placing the wire in a hydrochloric acid tank for acid washing, washing the wire with water after acid washing, and coating a lubricant;
s3, cold-drawing the wire rod to the required wire diameter through a wire drawing machine, and carrying out shelling treatment;
s4, stamping and forming the fastening screw (7), forging the wire rod through a cold chamber to obtain the shape and the length of a semi-finished product, forming the head of the product through cutting and first punching, and preparing the fastening screw (7) through second punching and third punching;
s5, punch forming of the fastening seat (4), punching, performing inner cutting die and shearing knife matching on the wire, cutting the wire into blanks, shaping the cut blanks through punching equipment, pushing out the blanks through a rear punching rod, performing secondary punching, moving the blanks to a secondary punching mechanism for further shaping, enhancing the flattening and angle saturation effects of the first punching, performing triple operation, performing the operation until the third punching, extruding the blanks again, and adjusting the thickness of the fastening seat (4);
s6, after the fastening screw (7) and the fastening seat (4) are punched, the required thread is achieved through rolling or tapping;
s7, carrying out heat treatment on the prepared fastening seat (4) and the fastening screw (7), carrying out high-temperature normalizing on the fastening seat (4) and the fastening screw (7), heating the material for quenching, then carrying out quenching through water or oil, and heating to 400-;
s8, hot-dip galvanizing is carried out, after the tempered fastening screw (7) and the fastening seat (4) are placed still for degreasing, washing is carried out for impurity removal, activation treatment is carried out, the activated fastening screw (7) and the activated fastening seat (4) are immersed in a horizontal roller, galvanizing liquid and a modifier are added, the modifier is a potassium chloride galvanizing brightener, the roller rotates to complete the rolling galvanizing of the fastening screw (7) and the fastening seat (4), after the rolling galvanizing, after secondary washing, air duct blow-drying is carried out at a washing discharge end, and the preparation is completed.
6. The method of claim 5, wherein the high temperature normalizing temperature in S7 is 850 ℃, and the steel material is martensitic steel.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070047208A1 (en) * | 2005-08-26 | 2007-03-01 | Chunnan Zhou | Fastener with snap-on feature, heat dissipation assembly for central processing unit and method of using the same |
| CN109909690A (en) * | 2019-04-04 | 2019-06-21 | 浙江力友汽车科技有限公司 | A kind of processing technology of gearbox bolt |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070047208A1 (en) * | 2005-08-26 | 2007-03-01 | Chunnan Zhou | Fastener with snap-on feature, heat dissipation assembly for central processing unit and method of using the same |
| CN109909690A (en) * | 2019-04-04 | 2019-06-21 | 浙江力友汽车科技有限公司 | A kind of processing technology of gearbox bolt |
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