CN111872638B - Screw machining process - Google Patents
Screw machining process Download PDFInfo
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- CN111872638B CN111872638B CN202010722638.1A CN202010722638A CN111872638B CN 111872638 B CN111872638 B CN 111872638B CN 202010722638 A CN202010722638 A CN 202010722638A CN 111872638 B CN111872638 B CN 111872638B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
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Abstract
The application relates to a screw machining process, which comprises the following steps: selecting materials, namely selecting steel wires with proper thickness as raw materials; roughly drawing, namely drawing the steel wire by using a roughly drawing wire drawing device until the diameter of the steel wire is a rough regulating value, and winding the steel wire into a coil shape; annealing, namely annealing the steel wire material in the linear state by using annealing equipment; finish drawing, namely drawing the steel wire to a linear state by using finish drawing equipment, drawing the diameter of the steel wire to a given value, cutting, and cutting the steel wire according to a given length; heading, namely stamping one end of the cut steel wire section by using a heading device; clamping a dovetail part at one end of the screw, which is far away from the head part of the screw, by using tail clamping equipment; and (4) thread rolling, namely machining threads on the screw by using a rolling plate. This application has the structural stability who effectively promotes the tensile in-process of steel wire, reduces in processes such as taking the lead because the tensile damage of steel wire leads to the effect of steel wire fracture or secondary damage's probability.
Description
Technical Field
The application relates to the field of fastener processing, in particular to a screw processing technology.
Background
At present, a screw is a common fastener and is widely used on machinery, electrical appliances and buildings. Generally, the material is metal or plastic, and is cylindrical, and the grooves with the concave and convex surfaces are called as screw threads.
The prior art can refer to Chinese invention patent with application publication number CN109531050A, and discloses a processing technology of a concave-meter-shaped countersunk head special screw, which comprises the following steps: 1. selecting a steel wire with strength meeting the requirement as a raw material for manufacturing the screw; 2. rolling the coiled steel wire material into a long straight line state, and cutting the steel wire in the long straight line state according to a specified length to form a direct material for manufacturing each screw; 3. the method comprises the following steps that a clamp capable of regularly arranging and fixing a large number of cut steel wires is used, one end of each steel wire is quickly punched and formed into a concave Chinese character 'mi' shape through a punching machine and serves as the head of a screw; 4. machining threads by using a rolling plate with a pitch meeting the requirement; 5. and (4) carrying out ultrasonic cleaning and electroplating on the processed screw to finally obtain a finished product.
In view of the above-mentioned related technologies, the inventor believes that there is a defect that when the heading step is performed, in order to ensure the heading effect, the screw body is damaged or broken, and finally, the machining precision of the screw is reduced, and the yield is reduced.
Disclosure of Invention
In order to effectively promote the structural stability of steel wire tensile in-process, reduce and beat and lead to the probability of steel wire fracture or secondary damage because of steel wire tensile damage in the processes such as head, this application provides a screw processing technology, adopts following technical scheme:
a screw machining process is characterized by comprising the following steps:
s10, selecting materials, and selecting steel wires with proper thickness as raw materials;
s20, performing rough drawing, namely drawing the steel wire by using rough drawing equipment until the diameter of the steel wire is a rough regulation value, and winding the steel wire into a coil shape;
s30, annealing, namely annealing the steel wire material in the linear state by using annealing equipment;
s40, fine drawing, namely drawing the steel wire to a straight line state by using fine drawing equipment and drawing the diameter of the steel wire to a given value, wherein the given value is constantly smaller than the rough-drawing value in the rough-drawing step;
s50, cutting, and cutting the steel wire according to a given length;
s60, heading, namely stamping one end of the cut steel wire section by using a heading device to be used as a screw head;
s70, clamping a tail, namely clamping a dovetail part at one end of the screw, which is far away from the head of the screw, by using tail clamping equipment;
s80, thread rolling, namely, machining threads on the screw by using a rolling plate;
and S90, ending, and performing polishing and phosphorization on the screw.
Through adopting above-mentioned technical scheme, when carrying out screw processing, carry out the rough drawing step with the steel wire earlier, the rough drawing step is used for slightly reducing the steel wire, but in the rough drawing stage, the width that keeps the steel wire is greater than final screw demand numerical value, thereby eliminate some unevenness's condition in the edge of steel wire, keep the smooth annealing operation that carries on in steel wire edge, steel wire surface unevenness leads to the unstable probability of annealing effect when reducing annealing, afterwards, carry out the finish drawing operation, at this moment, under the effect of operation is drawn in the past roughly, can ensure that the steel wire is stable through the effect of annealing, can effectively improve the finish drawing quality, thereby reduce the steel wire because tensile quality is poor in processes such as beating the head, there are cracks or unevenness screw production quality reduction scheduling problem that leads to on the surface.
Preferably, the rough drawing and wire drawing equipment in the rough drawing step comprises a rough drawing and wire drawing machine body and a material receiving assembly arranged at a discharge hole of the rough drawing and wire drawing machine body;
receive the material subassembly including setting up in the receipts material base on ground and rotate the receipts material roller of connecting on receiving the material base, receive the material roller level setting, receive the position department that the material base corresponds receipts material roller one end and be provided with drive assembly, receive the material roller outside and can dismantle and be connected with and receive the material sleeve, receive the material sleeve and receive the material roller relatively fixed when being connected with receiving the material roller.
Through adopting above-mentioned technical scheme, when thick drawing, the steel wire winding after will thick drawing is on receiving the material sleeve to, rotate and receive the material sleeve alright with the steel wire winding after thick drawing receive the material sleeve on receiving the material sleeve, convenient direct add the annealing operation to the steel wire in the annealing furnace with receiving the material sleeve.
Preferably, receive the spacing bead of a plurality of cyclic annular settings of fixedly connected with on the material sleeve lateral wall, all spacing beads are arranged along receiving telescopic length direction and are set up, all seted up the breach of stepping down on the spacing bead.
Through adopting above-mentioned technical scheme, the setting of bead can effectively carry out wire-wound direction, when carrying out the winding, rotates and receives the material sleeve, alright let the steel wire twine along the recess that spacing bead lateral wall formed, after the space winding between two spacing beads is full, the steel wire can be followed the breach of stepping down and detour the position department between two other spacing beads to improve steel wire winding stability and orderliness, conveniently carry out taking off of later stage steel wire.
Preferably, the inside cavity setting that is of spacing bead all sets up the intercommunication hole inside and outside the spacing bead of intercommunication on spacing bead lateral wall and the top surface.
Through adopting above-mentioned technical scheme, the setting up of intercommunicating pore can effectively ensure the steel wire can be by even heating in annealing process, has reduced because the winding leads to being pressed the steel wire heating in the middle part and slowly finally leads to the probability that the unstable condition of annealing effect takes place, improves the efficiency and the stability of steel wire annealing.
Preferably, in the finish drawing step the finish drawing wire drawing equipment includes the finish drawing wire drawing machine body and sets up in the material loading subassembly of finish drawing wire drawing machine body feed inlet position department, the material loading subassembly includes fixed connection in the material loading support that the finish drawing wire drawing machine body is close to its feed inlet position department, the vertical setting of material loading support, material loading support top fixedly connected with material loading ring, the position department sliding connection that material loading support corresponds the material loading ring below has a plurality of auxiliary rings, all auxiliary rings arrange the setting along vertical direction, the equal fixedly connected with auxiliary spring in position department that the material loading support corresponds the auxiliary ring, the equal fixed connection of one end that the material loading support was kept away from to auxiliary spring is on the auxiliary ring that corresponds, when auxiliary spring was in natural state, the axis of auxiliary ring was located same straight line with the axis of material loading ring.
Through adopting above-mentioned technical scheme, when carrying out the essence and drawing, pass supplementary ring and material loading ring in proper order with the steel wire, thereby, when the steel wire is drawn by the essence, the steel wire of feed end if the steel wire leads to rotatoryly because stress and winding shape, can offset the displacement volume of steel wire under auxiliary spring's drive, draw the steel wire to material loading ring below as far as possible, thereby, let the position department of steel wire material loading more smooth and easy, reduce the probability that the steel wire lives or the condition of twining and knoing takes place, let the steel wire keep vertical state as far as possible and carry out the feeding, improve the stability of the essence step of drawing.
Preferably, in the finish draw step finish draw wire drawing equipment include with finish draw wire drawing machine body fixed connection's auxiliary base, the last fixed connection of auxiliary base has the auxiliary shaft of level setting, receive the material sleeve and can peg graft on the auxiliary shaft, receive the material sleeve and peg graft and can rotate around the auxiliary shaft when on the auxiliary shaft.
Through adopting above-mentioned technical scheme, when carrying out the essence and pulling, to receive the material sleeve and peg graft on the auxiliary shaft, at this moment, place the difference with traditional sleeve numerical value of receiving material, the steel wire is vertical upwards being pulled out when receiving the material sleeve and being pulled out, can realize the preliminary operation of flare-outing to the steel wire through the process of pulling out the steel wire, thereby conveniently carry out the steel wire essence and pull, compare with traditional material loading mode, the steel wire is and encircles the form material loading that makes progress, lead to the steel wire to tie a knot or lead to the probability that the steel wire edge was worn and torn because of surrounding the angle in material loading time easily.
Preferably, one end of the auxiliary shaft, which is far away from the auxiliary base, is detachably connected with a baffle ring, and the outer diameter of the baffle ring is larger than the inner diameter of the material receiving sleeve.
Through adopting above-mentioned technical scheme, the setting of fender ring can effectively reduce the probability that the receipts material sleeve is deviate from the auxiliary shaft because the displacement takes place for the rotation in the material loading, improves the stability of material loading.
Preferably, the rough drawing step specifically comprises the following steps:
s21, drawing the steel wire by using the rough drawing wire drawing machine body;
s22, winding the stretched steel wire outside the material receiving sleeve;
s23, starting the driving assembly to drive the material receiving sleeve to rotate, and winding the steel wire along the limiting rib gaps;
s24, disassembling the material receiving sleeve after the steel wire winding is finished.
Through adopting above-mentioned technical scheme, when carrying out the rough drawing, use and receive the material sleeve with the winding of steel wire on receiving the material sleeve, can conveniently carry out subsequent steel wire transportation operation on the one hand, can receive the transportation of material sleeve convenience efficient steel wire through removing, on the other hand can conveniently carry out the material loading of steel wire in the smart step of drawing.
Preferably, the annealing step specifically performs the following operations:
s31, placing the material receiving sleeve in annealing equipment;
s32, heating the steel wire on the material receiving sleeve to a proper temperature below Ac 1;
s33, keeping the temperature and then cooling the mixture along with the furnace;
and S34, taking out the material collecting sleeve.
Through adopting above-mentioned technical scheme, in annealing, directly will receive the material sleeve and arrange the equipment of returning goods in, can conveniently anneal to the steel wire, heat the steel wire to the appropriate temperature below Ac1, can conveniently carry out the destressing annealing of steel wire to improve the plasticity of steel wire, make things convenient for subsequent essence to draw and beat screw processing operations such as head.
Preferably, the fine-drawing step specifically performs the following operations:
s41, taking the material receiving sleeve subjected to the annealing step, and sleeving the material receiving sleeve on the auxiliary shaft;
s42, mounting a baffle ring at the end part of the auxiliary shaft;
s43, sequentially enabling one end of the steel wire to penetrate through the auxiliary ring and the feeding ring;
and S44, drawing the steel wire by using the fine drawing machine body.
Through adopting above-mentioned technical scheme, before carrying out the finish draw, will receive the material sleeve earlier and install on the auxiliary shaft, can conveniently carry out the steel wire material loading, when the steel wire material loading was accomplished, alright realize the complete material loading to the steel wire.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the steel wire can be conveniently and orderly moved and transported in the screw processing process;
2. can effectively reduce the damage of the steel wire caused by stretching, thereby improving the stability and efficiency of the process of the fixed processing.
Drawings
FIG. 1 is a schematic process flow diagram of the present example;
FIG. 2 is a partial schematic view of a rough drawing machine body according to the embodiment;
FIG. 3 is a partial cross-sectional view of the protruding restraining bead structure of the embodiment;
FIG. 4 is a partial schematic view of a main body of a drawing machine for drawing fine wires in the embodiment;
FIG. 5 is a partial sectional view of a protruding feeder in the example.
Description of reference numerals: 1. a rough drawing machine body; 11. a receiving base; 12. a material receiving roller; 13. a material receiving motor; 14. a receiving sleeve; 15. a limiting convex rib; 151. a communicating hole; 152. a abdication gap; 2. Finely drawing the wire drawing machine body; 21. a feeding support; 211. a feeding ring; 212. an auxiliary ring; 213. an auxiliary spring; 214. an auxiliary support; 215. a mother magnet block; 216. a male magnet piece; 22. an auxiliary base; 221. an auxiliary shaft; 222. and (4) a baffle ring.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
The embodiment discloses a screw machining process, which comprises the following steps with reference to fig. 1 and 2:
s10, selecting materials, determining the diameter of the screw to be processed, recording the diameter as a given value, and selecting a steel wire with proper thickness as a raw material; wherein the raw material needs to be inspected for the kind of steel, and the diameter of the raw material needs to be larger than a given value.
And S20, rough drawing, namely drawing the steel wire by using rough drawing equipment until the diameter of the steel wire is a rough regulated value, and winding the steel wire into a coil shape.
Referring to fig. 2 and 3, the rough drawing and wire drawing equipment in the rough drawing step comprises a rough drawing and wire drawing machine body 1 and a material receiving assembly arranged at a discharge hole of the rough drawing and wire drawing machine body 1; receive the material subassembly including setting up in the receipts material base 11 on ground and rotate and connect the receipts material roller 12 on receiving the material base 11, receive the level setting of material roller 12, receive the position department that material base 11 corresponds receipts material roller 12 one end and be provided with drive assembly, receive the material roller 12 outside and can dismantle and be connected with receipts material sleeve 14, receive material sleeve 14 and receive material roller 12 relatively fixed when being connected with receipts material roller 12.
The cross-sectional layer of the material receiving roller 12 is square, the inner cross-section of the material receiving sleeve 14 is square, and the outer cross-section of the material receiving sleeve 14 is circular.
The outer side wall of the material receiving sleeve 14 is fixedly connected with a plurality of annularly arranged limiting convex edges 15, all the limiting convex edges 15 are arranged along the length direction of the material receiving sleeve 14, and the limiting convex edges 15 are provided with abdicating notches 152. The inside cavity setting that is of spacing bead 15, all set up the inside and outside intercommunicating pore 151 of intercommunication spacing bead 15 on spacing bead 15 lateral wall and the top surface.
The driving assembly comprises a material receiving motor 13 fixedly connected to one end of the material receiving base 11 corresponding to the material receiving roller 12, and the material receiving roller 12 is fixedly connected to an output shaft of the material receiving motor 13.
The rough drawing step specifically comprises the following steps:
and S21, drawing the steel wire by using the rough drawing machine body 1.
And S22, winding the stretched steel wire outside the material receiving sleeve 14.
S23, the driving assembly is started to drive the material receiving sleeve 14 to rotate, and the steel wire is wound along the gaps of the limiting convex ribs 15.
S24, disassembling the material receiving sleeve 14 after the steel wire winding is finished.
Wherein the rough adjustment value is an identification value of the diameter of the steel wire, and the rough adjustment value is larger than a given value and smaller than the diameter value of the raw material. The rough drawing machine body 1 is a common steel wire drawing machine, and can adopt a trunk type drawing machine produced by Hangzhou Sanjin mechanical manufacturing limited company. The material receiving sleeve 14 is made of heat-resistant steel.
Before the annealing step, with the steel wire winding on receiving material sleeve 14, can conveniently transport the steel wire, simultaneously, because the intercommunicating pore 151 has been seted up on receiving material sleeve 14, can ensure that the steel wire of winding on receiving material sleeve 14 evenly carries out annealing operation, reaches good annealing effect.
And S30, annealing, namely annealing the steel wire material in the linear state by using annealing equipment.
The annealing step is specifically performed as follows.
S31, placing the material receiving sleeve 14 in annealing equipment.
S32, heating the steel wires on the material receiving sleeve 14 to a proper temperature below Ac 1.
And S33, keeping the temperature and then cooling the product along with the furnace.
S34, taking out the material collecting sleeve 14.
And S40, fine drawing, drawing the steel wire to a straight state by using fine drawing equipment and drawing the diameter of the steel wire to a given value.
Wherein, referring to fig. 4 and 5, the fine drawing wire drawing device in the fine drawing step comprises a fine drawing wire drawing machine body 2 and a feeding assembly arranged at the position of a feed inlet of the fine drawing wire drawing machine body 2, the feeding assembly comprises a feeding support 21 fixedly connected to the fine drawing wire drawing machine body 2 near the position of the feed inlet, the feeding support 21 is vertically arranged, the top end of the feeding support 21 is fixedly connected with a feeding ring 211, a plurality of auxiliary rings 212 are slidably connected to the positions of the feeding support 21 corresponding to the lower part of the feeding ring 211, all the auxiliary rings 212 are arranged along the vertical direction, auxiliary springs 213 are fixedly connected to the positions of the feeding support 21 corresponding to the auxiliary rings 212, one ends of the auxiliary springs 213 far away from the feeding support 21 are fixedly connected to the corresponding auxiliary rings 212, and when the auxiliary springs 213 are in a natural state, the central axis of the auxiliary ring 212 is aligned with the central axis of the feeding ring 211.
The finish drawing wire drawing equipment in the finish drawing step further comprises an auxiliary base 22 fixedly connected with the finish drawing wire drawing machine body 2, an auxiliary shaft 221 horizontally arranged is fixedly connected to the auxiliary base 22, the material receiving sleeve 14 can be inserted into the auxiliary shaft 221, and the material receiving sleeve 14 can rotate around the auxiliary shaft 221 when inserted into the auxiliary shaft 221. The diameter of the auxiliary shaft 221 is smaller than the side length of the inner section of the material receiving sleeve 14. The end of the auxiliary shaft 221 far from the auxiliary base 22 is connected with a baffle ring 222 through screw threads, and the outer diameter of the baffle ring 222 is larger than the inner diameter of the material receiving sleeve 14.
The equal fixedly connected with in position department that material loading support 21 corresponds every auxiliary ring 212 encircles auxiliary support 214 that auxiliary ring 212 set up, a plurality of magnet pieces 215 of fixedly connected with on the auxiliary support 214 inside wall, the equal fixedly connected with in position department that auxiliary ring 212 corresponds every magnet piece 215 of magnet piece 216, magnet piece 216 is relative with magnet piece 215's the same polarity end.
The fine-drawing step specifically executes the following operations:
s41, taking the material receiving sleeve 14 after the annealing step, and sleeving the material receiving sleeve 14 on the auxiliary shaft 221.
S42, a stopper ring 222 is attached to the end of the auxiliary shaft 221.
And S43, one end of the steel wire sequentially passes through the auxiliary ring 212 and the feeding ring 211.
And S44, drawing the steel wire by using the fine drawing machine body 2.
The fine drawing wire drawing machine body 2 and the rough drawing wire drawing machine body 1 can use the same wire drawing equipment, and the parameters of the wire drawing equipment can be adjusted.
Will receive material sleeve 14 level and place the material loading of carrying out the finish draw step, the rotatory winding degree that effectively reduces the steel wire of receiving material sleeve 14 when can utilizing the steel wire to be taken out, thereby let and tentatively straighten the steel wire, thereafter, pass auxiliary ring 212 and material loading ring 211 with the steel wire, can effectively utilize auxiliary spring 213's pulling force, and the repulsion force between public magnet piece 216 and the female magnet piece 215, it is tensile to go up material loading ring 211 below with the steel wire, thereby keep the steel wire to be the rectilinearly and carry out the finish draw step material loading, improve the stability of finish draw step.
And S50, cutting the steel wire according to a given length.
And S60, heading, namely, stamping one end of the cut steel wire section by using a heading device to form a screw head. Wherein, the heading device is a heading machine in the prior art.
And S70, clamping the tail, and clamping a dovetail part at one end of the screw far away from the screw head by using a tail clamping device. Wherein, the tail clamping equipment is a tail clamping machine tool in the prior art.
And S80, thread rolling, namely machining threads on the screw by using a rolling plate.
And S90, ending, and performing polishing and phosphorization on the screw.
The implementation principle of the embodiment of the application is as follows: when carrying out screw processing, carry out the rough drawing step with the steel wire earlier, the rough drawing step is used for slightly reducing the steel wire, but in the rough drawing stage, the width that keeps the steel wire is greater than final screw demand numerical value, thereby eliminate some unevenness's condition in the edge of steel wire, keep the smooth operation of annealing that carries on in steel wire edge, reduce the uneven probability that leads to annealing effect unstability in steel wire surface during annealing, afterwards, carry out the finish drawing operation, at this moment, under the effect of former rough drawing operation, can ensure that the steel wire is stable through the effect of annealing, can effectively improve the finish drawing quality, thereby reduce the steel wire because tensile quality is poor in processes such as beating the head, there are the problem such as screw production quality reduction that crackle or unevenness lead to in the 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 (1)
1. A screw machining process is characterized by comprising the following steps:
s10, selecting materials, and selecting steel wires with proper thickness as raw materials;
s20, performing rough drawing, namely drawing the steel wire by using rough drawing equipment until the diameter of the steel wire is a rough regulation value, and winding the steel wire into a coil shape;
the rough drawing equipment comprises a rough drawing machine body (1) and a material receiving assembly arranged at a discharge hole of the rough drawing machine body (1);
the receiving assembly comprises a receiving base (11) arranged on the ground and a receiving roller (12) rotatably connected to the receiving base (11), the receiving roller (12) is horizontally arranged, a driving assembly is arranged at the position, corresponding to one end of the receiving roller (12), of the receiving base (11), a receiving sleeve (14) is detachably connected to the outer side of the receiving roller (12), and the receiving sleeve (14) is relatively fixed with the receiving roller (12) when being connected with the receiving roller (12);
the outer side wall of the material receiving sleeve (14) is fixedly connected with a plurality of annularly arranged limiting convex edges (15), all the limiting convex edges (15) are arranged along the length direction of the material receiving sleeve (14), and the limiting convex edges (15) are provided with abdicating notches (152);
the inside of the limiting convex edge (15) is hollow, and the side wall and the top surface of the limiting convex edge (15) are both provided with communicating holes (151) for communicating the inside and the outside of the limiting convex edge (15);
s30, annealing, namely annealing the steel wire material in the linear state by using annealing equipment;
s40, fine drawing, namely drawing the steel wire to a straight line state by using fine drawing equipment and drawing the diameter of the steel wire to a given value, wherein the given value is constantly smaller than the rough-drawing value in the rough-drawing step;
wherein, the fine drawing wire drawing equipment comprises a fine drawing wire drawing machine body (2) and a feeding assembly arranged at the position of a feed inlet of the fine drawing wire drawing machine body (2), the feeding assembly comprises a feeding support (21) fixedly connected to the fine drawing wire drawing machine body (2) and close to the position of the feed inlet, the feeding support (21) is vertically arranged, the top end of the feeding support (21) is fixedly connected with a feeding ring (211), the feeding support (21) is slidably connected with a plurality of auxiliary rings (212) at the position corresponding to the lower part of the feeding ring (211), all the auxiliary rings (212) are arranged along the vertical direction, auxiliary springs (213) are fixedly connected at the positions of the feeding support (21) corresponding to the auxiliary rings (212), one ends of the auxiliary springs (213) far away from the feeding support (21) are fixedly connected to the corresponding auxiliary rings (212), and when the auxiliary springs (213) are in a natural state, the central axis of the auxiliary ring (212) and the central axis of the feeding ring (211) are positioned on the same straight line;
the fine drawing wire drawing equipment comprises an auxiliary base (22) fixedly connected with a fine drawing wire drawing machine body (2), a horizontally arranged auxiliary shaft (221) is fixedly connected to the auxiliary base (22), a material receiving sleeve (14) can be inserted onto the auxiliary shaft (221), and the material receiving sleeve (14) can rotate around the auxiliary shaft (221) when being inserted onto the auxiliary shaft (221);
one end of the auxiliary shaft (221), which is far away from the auxiliary base (22), is detachably connected with a baffle ring (222), and the outer diameter of the baffle ring (222) is larger than the inner diameter of the material receiving sleeve (14);
s50, cutting, and cutting the steel wire according to a given length;
s60, heading, namely stamping one end of the cut steel wire section by using a heading device to be used as a screw head;
s70, clamping a tail, namely clamping a dovetail part at one end of the screw, which is far away from the head of the screw, by using tail clamping equipment;
s80, thread rolling, namely, machining threads on the screw by using a rolling plate;
s90, ending, and performing polishing and phosphating operation on the screw;
the rough drawing step specifically comprises the following steps:
s21, drawing the steel wire by using the rough drawing wire drawing machine body (1);
s22, winding the stretched steel wire outside the material receiving sleeve (14);
s23, starting the driving assembly to drive the material receiving sleeve (14) to rotate, and winding the steel wire along the gap of the limiting convex rib (15);
s24, disassembling the material receiving sleeve (14) after the steel wire is wound;
the annealing step specifically performs the following operations:
s31, placing the material receiving sleeve (14) in annealing equipment;
s32, heating the steel wires on the material receiving sleeve (14) to a proper temperature below Ac 1;
s33, keeping the temperature and then cooling the mixture along with the furnace;
s34, taking out the material receiving sleeve (14);
the fine-drawing step specifically executes the following operations:
s41, taking the material receiving sleeve (14) after the annealing step, and sleeving the material receiving sleeve (14) on the auxiliary shaft (221);
s42, mounting a baffle ring (222) at the end part of the auxiliary shaft (221);
s43, one end of the steel wire sequentially penetrates through the auxiliary ring (212) and the feeding ring (211);
and S44, drawing the steel wire by using the fine drawing machine body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010722638.1A CN111872638B (en) | 2020-07-24 | 2020-07-24 | Screw machining process |
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| CN202010722638.1A CN111872638B (en) | 2020-07-24 | 2020-07-24 | Screw machining process |
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| CN111872638B true CN111872638B (en) | 2021-08-27 |
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| DE102008016866B4 (en) * | 2008-04-02 | 2011-04-28 | Ludwig Hettich & Co. | Threaded furrowing screw |
| CN103170804A (en) * | 2013-03-20 | 2013-06-26 | 常州凯翔医用不锈钢有限公司 | Manufacturing technique of medical fastening screw |
| CN105945076A (en) * | 2016-07-01 | 2016-09-21 | 安庆潜江电缆有限公司 | Small copper wire drawing equipment for cable |
| CN107297394A (en) * | 2017-07-03 | 2017-10-27 | 杭州富阳飞润五金有限公司 | A kind of useless flat filament reclaims drawing process and wire drawing and paying mechanism |
| CN107497968B (en) * | 2017-10-16 | 2024-07-16 | 海盐县华昇汽车配件有限公司 | Steel bar traction straightening machine |
| CN108890223A (en) * | 2018-06-28 | 2018-11-27 | 浙江俊荣五金工业有限公司 | Locking double section silk screw production technologies |
| CN111015101A (en) * | 2019-12-12 | 2020-04-17 | 冷水江天宝实业有限公司 | Processing method of high-fatigue-life and high-strength bolt |
| CN111115331A (en) * | 2020-01-16 | 2020-05-08 | 安徽宝丰包装科技有限公司 | Plastic woven cloth and flattening feeding device thereof |
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