CN117245042B - Screw production thread rolling machine - Google Patents
Screw production thread rolling machine Download PDFInfo
- Publication number
- CN117245042B CN117245042B CN202311071790.8A CN202311071790A CN117245042B CN 117245042 B CN117245042 B CN 117245042B CN 202311071790 A CN202311071790 A CN 202311071790A CN 117245042 B CN117245042 B CN 117245042B
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- China
- Prior art keywords
- steel bar
- plate
- rolling
- embedded groove
- billet
- Prior art date
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- 238000005096 rolling process Methods 0.000 title claims abstract description 124
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 176
- 239000010959 steel Substances 0.000 claims abstract description 176
- 238000003825 pressing Methods 0.000 claims abstract description 28
- 238000005520 cutting process Methods 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 239000007921 spray Substances 0.000 claims description 24
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 17
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 17
- 241001330002 Bambuseae Species 0.000 claims description 17
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 17
- 239000011425 bamboo Substances 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 13
- 238000005452 bending Methods 0.000 claims description 12
- 238000001125 extrusion Methods 0.000 claims description 12
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 claims description 2
- 238000009423 ventilation Methods 0.000 description 14
- 230000005489 elastic deformation Effects 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H3/00—Making helical bodies or bodies having parts of helical shape
- B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
- B21H3/04—Making by means of profiled-rolls or die rolls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
The invention belongs to the technical field of screw production tools, in particular to a screw production thread rolling machine, which comprises a workbench, wherein a rolling assembly is arranged on the top surface of the workbench, and comprises a driving structure, a power structure and a rolling wheel; a bearing plate is arranged on the top surface of the workbench and positioned between the rolling wheels, and a cutting assembly is arranged above the bearing plate and used for cutting off the rolled part of the steel bar; according to the screw production thread rolling machine, the embedded groove is formed in the backing plate, the pressing plate is matched to limit the steel bar, the rolling assembly is started, the rolling wheel rotates to roll the surface of the steel bar, the steel bar is driven to rotate, when the steel bar is bent, the bent part of the steel bar is limited by the pressing plate when rotating, the steel bar can only rotate in the embedded groove, the steel bar is prevented from shaking greatly when rotating, the probability of safety accidents is reduced, stable rolling of the steel bar is facilitated, and the rolling quality of the steel bar is improved.
Description
Technical Field
The invention belongs to the technical field of screw production tools, and particularly relates to a screw production thread rolling machine.
Background
The thread rolling machine is a multifunctional cold rolling forming machine tool, and can roll threads, straight lines and twills on a workpiece in a cold state within the rolling force range; rolling of straight teeth, helical teeth and helical spline gears; compared with the turning thread, the method has the advantages of high production efficiency and low material consumption, and meanwhile, the strength of the rolled thread is generally higher than that of the turning thread.
In the process of producing screws by using a thread rolling machine, steel bars are required to be used as raw materials, the steel bars are required to be straightened by a straightener before being rolled by the thread rolling machine, the straightened steel bars are padded by a cushion block when being inserted into the rolling position of the thread rolling machine, when the thread rolling machine rolls the steel bars, rolling wheels of the thread rolling machine drive the steel bars to rotate, the steel bars rotate on the cushion block when being rolled, the steel bars are cut off by cutting equipment when being rolled, and then the next production operation is carried out; in actual production, the steel bar is required to be carried to a designated position for storage after being straightened, and then is carried to a designated station during rolling, when the steel bar is longer and the diameter is smaller, the steel bar can shake and bend during carrying, and further plastic deformation is generated to be wholly bent, and the plastic deformation bending staff is difficult to observe.
To this end, the invention provides a screw production thread rolling machine.
Disclosure of Invention
In order to overcome the deficiencies of the prior art, at least one technical problem presented in the background art is solved.
The technical scheme adopted for solving the technical problems is as follows: the invention relates to a screw production thread rolling machine, which comprises a workbench, wherein a rolling assembly is arranged on the top surface of the workbench, and comprises a driving structure, a power structure and rolling wheels; a bearing plate is arranged on the top surface of the workbench and positioned between the rolling wheels, and a cutting assembly is arranged above the bearing plate and used for cutting off the rolled part of the steel bar; the top surface of the workbench and one side of the rolling assembly are provided with a base plate, the top surface of the base plate is provided with an embedded groove, and a notch of one side of the embedded groove facing the rolling assembly points to a rolling position between two rolling wheels; the top surface of the backing plate is provided with a pair of sliding grooves, a supporting rod is connected in the sliding grooves in a sliding mode, the top end of the supporting rod is provided with a pressing plate, and the end portion of the pressing plate is provided with a first ejector rod; the steel bars for screw production are matched with the embedded grooves, and when the steel bars are embedded into the embedded grooves, the steel bars extending out of the backing plate can be supported by the top surface of the supporting plate; the bottom surface of the pressing plate is equal to the uppermost position of the steel bar embedded into the embedded groove.
Preferably, the pressing plate comprises a first connecting plate and a second connecting plate, the second connecting plate is connected with the end part of the first ejector rod, and the first connecting plate is positioned at one side of the second connecting plate far away from the first ejector rod; the top surface of second link board is provided with first telescopic link, the top fixedly connected with first link of first telescopic link output, be provided with the connecting piece between first link and the first link top surface.
Preferably, the connecting piece is specifically a connecting cylinder, the bottom end of the first connecting frame is inserted into the connecting cylinder, and friction exists between the first connecting frame and the connecting cylinder.
Preferably, the bottom surface of the first connecting plate is rotatably connected with a first rotating roller.
Preferably, the inner wall of the embedded groove is provided with an air vent groove, a rectangular spray head is arranged in the embedded groove, and the spray nozzle of the rectangular spray head sprays vertically upwards; the end part of the rectangular spray head is connected with a guide pipe in a penetrating way, and the end part of the guide pipe far away from the rectangular spray head is communicated with the water pump.
Preferably, a fan is arranged on the notch of one side of the ventilation groove, which is close to the rolling assembly, and a water receiving pipe is arranged on the notch of the other side of the ventilation groove, and the water receiving pipe can receive liquid water flowing out of the ventilation groove.
Preferably, a limiting cylinder is arranged between the base plate and the rolling wheel, and a supporting piece is arranged between the limiting cylinder and the workbench; when the steel bar to be rolled is embedded into the embedded groove and is received by the top surface of the receiving plate, the center line of the steel bar passes through the cylinder center of the limiting cylinder, and the diameter of the steel bar is the same as the inner diameter of the limiting cylinder.
Preferably, the second telescopic link is installed to the top surface of restriction section of thick bamboo, the top fixedly connected with second link of second telescopic link output, the tip fixedly connected with limiting plate that the second link kept away from the second telescopic link, the limiting plate is located directly over the roll extrusion position between the roll-up wheel, and can not influence the normal work of roll-up wheel when limiting plate downwardly moving and billet surface contact.
Preferably, the bottom surface of the limiting plate is rotatably connected with a second rotating roller.
Preferably, the inside of the limiting cylinder is inserted with an inserting cylinder, the end part of the limiting cylinder is provided with an annular groove, the inside of the annular groove is inserted with a connecting block, and the part of the connecting block positioned outside the annular groove is connected with the end part of the inserting cylinder.
The beneficial effects of the invention are as follows:
1. According to the screw production thread rolling machine, the embedded groove is formed in the backing plate, the pressing plate is matched to limit the steel bar, then the rolling assembly is started, the driving structure moves the position of the rolling wheel, the power structure drives the rolling wheel to rotate, the rotating rolling wheel rolls the surface of the steel bar to drive the steel bar to rotate, when the steel bar is bent, the bent part of the steel bar is limited by the pressing plate when rotating, so that the steel bar can only be in the embedded groove when rotating, the steel bar is prevented from shaking greatly when rotating, the probability of safety accidents is reduced, stable steel bar rolling is facilitated, and the steel bar rolling quality is improved.
2. According to the screw production thread rolling machine, the limiting cylinder is arranged on one side close to the rolling position between the rolling wheels, the steel bar passing through the limiting cylinder is limited at the position close to the rolling position, and when the steel bar is bent, the limiting cylinder automatically straightens the bending degree, so that the rolling quality is improved.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a perspective view of an insert groove of the present invention after being inserted into a steel bar;
FIG. 2 is a schematic view of the embedded groove of the present invention as embedded steel bars;
FIG. 3 is a schematic view of the structure of the pad of the present invention;
FIG. 4 is an enlarged schematic view of portion A of FIG. 3 in accordance with the present invention;
FIG. 5 is an enlarged schematic view of portion B of FIG. 3 in accordance with the present invention;
FIG. 6 is a schematic view of a connector of the present invention;
FIG. 7 is a schematic view of the fan position on the shim plate of the present invention;
FIG. 8 is an enlarged schematic view of portion C of FIG. 7 in accordance with the present invention;
FIG. 9 is a schematic view of the upper structure of the restraining canister of the present invention;
FIG. 10 is an enlarged schematic view of portion D of FIG. 9 in accordance with the present invention;
Fig. 11 is a schematic view of the position of the second rotating roller on the bottom surface of the limiting plate of the present invention.
In the figure: 1. a work table; 11. a rolling assembly; 12. cutting the component; 13. a receiving plate; 2. a backing plate; 21. a chute; 22. a support rod; 23. a pressing plate; 231. a first connecting plate; 232. a second connecting plate; 24. a first ejector rod; 25. a first telescopic rod; 26. a first connection frame; 27. a connecting piece; 3. an embedding groove; 31. a vent groove; 32. rectangular spray heads; 33. a conduit; 34. a water receiving pipe; 35. a blower; 4. a limiting cylinder; 41. a plug-in cylinder; 42. a connecting block; 43. a second telescopic rod; 44. a second connecting frame; 45. a limiting plate; 46. an annular groove; 47. and a second rotating roller.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Embodiment one: as shown in fig. 1 to 4, a screw production thread rolling machine according to an embodiment of the present invention includes a workbench 1, wherein a rolling assembly 11 is provided on the top surface of the workbench 1, and the rolling assembly 11 includes a driving structure, a power structure, and rolling wheels; a bearing plate 13 is arranged on the top surface of the workbench 1 and between the rolling wheels, a cutting assembly 12 is arranged above the bearing plate 13, and the cutting assembly 12 is used for cutting off the rolled part of the steel bar;
The top surface of the workbench 1 and positioned at one side of the rolling assembly 11 are provided with a backing plate 2, the top surface of the backing plate 2 is provided with an embedded groove 3, and a notch of one side of the embedded groove 3 facing the rolling assembly 11 points to a rolling position between two rolling wheels; a pair of sliding grooves 21 are formed in the top surface of the backing plate 2, a supporting rod 22 is connected in the sliding grooves 21 in a sliding mode, a pressing plate 23 is mounted at the top end of the supporting rod 22, and a first ejector rod 24 is arranged at the end portion of the pressing plate 23; the steel bars for screw production are matched with the embedded grooves 3, and when the steel bars are embedded into the embedded grooves 3, the steel bars extending out of the backing plate 2 can be accepted by the top surface of the accepting plate 13; the bottom surface of the pressing plate 23 is equal to the uppermost position of the steel bar embedded in the embedded groove 3;
When the embodiment of the invention is used, a steel bar to be rolled is placed into an embedded groove 3 formed in the top surface of a backing plate 2, the size of the steel bar is matched with the size of the embedded groove 3, and then the steel bar is driven in the embedded groove 3 by a manipulator or manually according to an actual working site, so that a rolling area at the end part of the steel bar enters between rolling wheels of a rolling assembly 11 and is supported by a supporting plate 13; the end part of the first ejector rod 24, which is far away from the pressing plate 23, is connected with the output end of the hydraulic component, after the position of the steel bar is determined, the hydraulic component drives the pressing plate 23 to move, the bottom surface of the pressing plate 23 is as high as the uppermost position of the steel bar embedded in the embedded groove 3, so that the pressing plate 23 on two sides of the steel bar can limit the steel bar when moving to the upper position of the steel bar, the pressing plates 23 on two sides of the steel bar stop when being mutually butted, the steel bar is limited by the pressing plates 23 after being embedded in the embedded groove 3, meanwhile, the pressing plates 23 are kept to be moved stably by the cooperation of the sliding groove 21 and the supporting rods 22, the rolling assembly 11 is started, the driving structure moves the position of the rolling wheel, the power structure drives the rolling wheel to rotate, the rotating rolling wheel rolls the surface of the steel bar, the steel bar drives the rotation of the steel bar, when the steel bar is bent in the embedded groove 3, the bending part of the steel bar can be limited by the pressing plate 23 when the steel bar rotates, the steel bar can only be carried out in the embedded groove 3, the large-amplitude shaking generated when the steel bar rotates is avoided, the occurrence of the rolling is reduced, the probability of safety accident is favorable for stable rolling and the quality is improved; it should be noted that in the technical scheme of the invention, the steel bar is slightly bent, the condition that the steel bar is largely rocked to be separated from the embedded groove 3 during rotation cannot occur, and the technical effects can be realized.
As shown in fig. 3 to 6, the pressing plate 23 includes a first connecting plate 231 and a second connecting plate 232, the second connecting plate 232 is connected with the end of the first ejector rod 24, and the first connecting plate 231 is located at one side of the second connecting plate 232 away from the first ejector rod 24; the top surface of the second connecting plate 232 is provided with a first telescopic rod 25, the top end of the output end of the first telescopic rod 25 is fixedly connected with a first connecting frame 26, and a connecting piece 27 is arranged between the first connecting frame 26 and the top surface of the first connecting plate 231; the first connecting plate 231 is not fixedly connected when the second connecting plate 232 is in butt joint; when in use, the steel bars with different sizes are firstly put into the embedded groove 3 when being rolled, and when the embedded groove 3 is not matched with the steel bars, the steel bars can be limited by the notch of the embedded groove 3 or the inner wall of the groove; it should be noted that, the steel bar with smaller size is placed in the embedded groove 3 and then is partially located above the notch of the embedded groove 3, then the hydraulic assembly connected with the end of the first ejector rod 24 drives the pressing plate 23 to move, meanwhile, the first telescopic rod 25 and the first connecting frame 26 drive the upper part of the steel bar with the first connecting plate 231 to move, when the two first connecting plates 231 are mutually abutted to the center of the notch of the embedded groove 3, the first telescopic rod 25 and the first connecting frame 26 drive the first connecting plate 231 to move downwards to squeeze the surface of the steel bar, the first connecting frame 26 can generate elastic deformation, therefore, when the first connecting plate 231 squeezes the surface of the steel bar, the first connecting frame 26 generates elastic deformation, specifically, the connecting position of the first connecting frame 26 with the first telescopic rod 25 is taken as a supporting point, the whole generates bending deformation, and then the first connecting plate 231 generates angular deflection relative to the second connecting plate 232, and the first connecting plates 231 on two sides symmetrically abut against the two side surfaces of the steel bar, and the embedded groove 3 can limit the rotation, so that the steel bar can be kept stable during rotation, and the steel bar can not shake greatly, and the applicable size range of the invention is improved.
The connecting piece 27 is specifically a connecting cylinder, the bottom end of the first connecting frame 26 is inserted into the connecting cylinder, and friction exists between the connecting piece and the connecting cylinder; specifically, a rounded corner exists at the bottom end of the first connecting frame 26, when the connecting cylinder is inserted, the rounded corner is inserted first and then inserted further, a pressing force exists between the surface of the first connecting frame 26 and the inner wall of the connecting cylinder when the first connecting frame 26 is inserted into the connecting cylinder, the surface of the first connecting frame 26 and the inner wall of the connecting cylinder are non-smooth surfaces, a friction force exists when the first connecting frame 26 is inserted into the connecting cylinder, and the magnitude of the friction force can be adjusted according to the roughness of the surface of the first connecting frame 26; when the first connecting plate 231 is pressed against the surface of the steel bar, when the extrusion force is excessive, the end part of the first connecting frame 26 moves relative to the connecting cylinder, namely the first connecting frame 26 is inserted into the connecting cylinder, and the friction force between the first connecting frame 26 and the connecting cylinder limits the extrusion force of the first connecting plate 231 on the steel bar, so that the steel bar is prevented from being damaged by excessive extrusion; it should be noted that the magnitude of the friction force between the first connecting frame 26 and the connecting cylinder is adjusted according to the previous data and the dimensions of the steel bar.
The first rotating roller 28 is rotatably connected to the bottom surface of the first connecting plate 231; in the process that the first connecting plate 231 is propped against the surface of the steel bar, the first rotating roller 28 can replace the bottom surface of the first connecting plate 231 to be propped against the surface of the steel bar, and when the steel bar rotates, the first rotating roller 28 synchronously rotates, so that the probability of scratches generated by friction between the surface of the steel bar and the first connecting plate 231 is reduced, and the surface quality of the steel bar is effectively protected; it should be noted that the notch of the embedded groove 3 is set to be arc-shaped, when receiving a steel bar with a larger size, the arc-shaped notch can increase the contact area between the arc-shaped notch and the steel bar, the contact area between the first connecting plate 231 and the surface of the steel bar is in line contact, the contact area is far smaller than the contact area between the steel bar and the embedded groove 3, the local extrusion force of the steel bar received in the embedded groove 3 is limited, and therefore the steel bar cannot rub with the notch or the inner wall of the embedded groove 3 when rotating in the embedded groove 3 to generate scratches.
As shown in fig. 3 and 4, an air vent groove 31 is formed in the inner wall of the embedded groove 3, a rectangular spray head 32 is arranged in the air vent groove 31, and the spray nozzle of the rectangular spray head 32 is vertically upwards in the spray direction; the end part of the rectangular spray head 32 is connected with a conduit 33 in a penetrating way, and the end part of the conduit 33, which is far away from the rectangular spray head 32, is communicated with a water pump; when the steel bar rotates in the embedded groove 3, a friction heating phenomenon can occur between the embedded groove 3 and the steel bar, the backing plate 2 is heated at a higher temperature after long-time use, and the whole equipment is heated through heat transfer, so that long-time stable use is not facilitated; therefore, the inner wall of the embedded groove 3 is provided with the ventilation groove 31, the rectangular spray head 32 arranged in the ventilation groove 31 receives liquid water pumped by the water pump at the end part of the guide pipe 33, and the liquid water is sprayed upwards to the surface of the steel bar through the spray nozzle, and the water cooling and the heat dissipation are carried out at the friction heating position between the steel bar and the inside of the embedded groove 3, so that the heat dissipation efficiency of the backing plate 2 is improved; thereby improving the speed of reducing the whole equipment; it should be noted that the rolled portion of the strip is cooled by the coolant spray and is then cut by the cutting assembly 12 after rolling, so that the overall temperature of the strip is not excessively high.
As shown in fig. 4 and 8, a fan 35 is arranged on one side notch of the ventilation groove 31 close to the rolling assembly 11, a water receiving pipe 34 is arranged on the other side notch of the ventilation groove 31, and the water receiving pipe 34 can receive liquid water flowing out of the ventilation groove 31; when the radiator is used, the fan 35 arranged at the notch of the ventilation groove 31 is started, the fan 35 blows the liquid water falling into the ventilation groove 31 to flow to the other notch, and then the liquid water flowing out is received to a designated position through the receiving water pipe 34, so that the radiator is convenient for recycling the liquid water.
As shown in fig. 1 and 9, a limiting cylinder 4 is arranged between the backing plate 2 and the rolling wheel, and a supporting piece is arranged between the limiting cylinder 4 and the workbench 1; when the steel bar to be rolled is embedded into the embedded groove 3 and is received by the top surface of the receiving plate 13, the center line of the steel bar passes through the cylinder center of the limiting cylinder 4, and the diameter of the steel bar is the same as the inner diameter of the limiting cylinder 4; the limiting cylinder 4 is arranged on one side close to the rolling position between rolling wheels, the position, close to rolling, of the steel bar passing through the limiting cylinder 4 is limited, and when the steel bar is bent, the limiting cylinder 4 can automatically straighten the bending degree, so that the rolling quality is improved.
As shown in fig. 9 to 11, a second telescopic rod 43 is installed on the top surface of the limiting cylinder 4, a second connecting frame 44 is fixedly connected to the top end of the output end of the second telescopic rod 43, a limiting plate 45 is fixedly connected to the end part of the second connecting frame 44, which is far away from the second telescopic rod 43, and the limiting plate 45 is positioned right above the rolling position between rolling wheels, and the normal operation of the rolling wheels is not affected when the limiting plate 45 moves downwards to be in contact with the surface of a steel bar; when rolling the steel bar, the limiting plate 45 is driven to move to the uppermost position of the surface of the steel bar through the second telescopic rod 43 and the second connecting frame 44, and the supporting plate 13 is matched with the steel bar, so that the upper and lower positions of the steel bar are limited, the influence of bending of the steel bar on rolling the steel bar is weakened, and the quality of rolling the steel bar is further improved.
The bottom surface of the limiting plate 45 is rotatably connected with a second rotating roller 47; when the steel bar is limited by the limiting plate 45, the second telescopic rod 43 drives the second rotating roller 47 to be positioned at the most lower position on the surface of the steel bar, and when the steel bar is bent upwards, the second rotating roller 47 is extruded to synchronously rotate, so that the steel bar is prevented from being deformed due to friction with the limiting plate 45 when the rolled part is at high temperature.
Embodiment two: as shown in fig. 9 to 11, comparative example one, in which another embodiment of the present invention is: the inside of the limiting cylinder 4 is inserted with an inserting cylinder 41, the end part of the limiting cylinder 4 is provided with an annular groove 46, the inside of the annular groove 46 is inserted with a connecting block 42, and the part of the connecting block 42 outside the annular groove 46 is connected with the end part of the inserting cylinder 41; when the steel bar is used, the plug-in cylinder 41 is plugged into the limiting cylinder 4, the sizes of the limiting cylinder 4 and the plug-in cylinder 41 are adjusted, the diameter of the steel bar is identical to the inner diameter of the plug-in cylinder 41, when the steel bar penetrates through the plug-in cylinder 41 and rotates, extrusion force exists between the bent steel bar and the inner wall of the plug-in cylinder 41 when the steel bar bends, friction force exists between the steel bar and the inner wall of the plug-in cylinder 41, the steel bar can synchronously drive the plug-in cylinder 41 to rotate through the friction force, and the plug-in cylinder 41 rotates in the annular groove 46 through the connecting block 42 arranged at the end part, so that scratches are continuously generated by relative sliding with the inner wall of the limiting cylinder 4 when the steel bar rotates are avoided.
During operation, a steel bar to be rolled is placed into an embedded groove 3 formed in the top surface of a backing plate 2, the size of the steel bar is matched with the size of the embedded groove 3, and then the steel bar is driven in the embedded groove 3 by a manipulator or manually according to an actual working site, so that a rolling area at the end part of the steel bar enters between rolling wheels of a rolling assembly 11, and is supported by a bearing plate 13; the tip that first ejector pin 24 kept away from to clamp plate 23 is connected with hydraulic assembly output, after the billet position is confirmed, start the liquid subassembly, hydraulic assembly output drives to clamp plate 23 and removes, the bottom surface of clamp plate 23 is high with the billet top position of embedding to embedded groove 3, consequently, can restrict the billet when clamp plate 23 removes the top position of billet, the clamp plate 23 that is located the billet both sides removes and stops when butting each other, the billet is restricted through clamp plate 23 after embedding embedded groove 3, simultaneously spout 21 and branch 22's cooperation makes clamp plate 23 keep the stability of removal, later start rolling subassembly 11, the position of drive structure removal rolling wheel, the power structure drives rolling wheel rotation, the surface of pivoted rolling wheel rolling bar, drive the rotation with the billet, the billet rotates in embedded groove 3, the billet bending portion when the billet appears crooked, can be restricted by clamp plate 23 when rotating, can only produce when the billet rotates in embedded groove 3, avoid producing and rock by a wide margin when rotating, reduce the probability that the incident takes place, be favorable to steadily going on rolling.
Wherein when rolling steel bars with different sizes, firstly putting the steel bars into the embedded groove 3, and when the embedded groove 3 is not matched with the steel bars, limiting the steel bars through the notch of the embedded groove 3 or the inner wall of the groove; it should be noted that, after the steel bar with smaller size is placed in the embedded groove 3 and then is partially located above the notch of the embedded groove 3, then the hydraulic component connected with the end of the first ejector rod 24 drives the pressing plate 23 to move, meanwhile, the first connecting frame 26 drives the first connecting plate 231 to move above the steel bar through the first telescopic rod 25, when the two first connecting plates 231 are mutually butted at the center of the notch of the embedded groove 3, the first connecting plate 231 is driven to move downwards through the first telescopic rod 25 and the first connecting frame 26 to squeeze the surface of the steel bar, the first connecting frame 26 can generate elastic deformation, so that when the first connecting plate 231 squeezes the surface of the steel bar, the first connecting frame 26 generates elastic deformation, specifically, the first connecting frame 26 takes the connecting position of the steel bar 25 as a supporting point, the whole generates bending deformation, and then the first connecting plate 231 generates angular deflection relative to the second connecting plate 232, and the first connecting plates 231 on two sides are symmetrically pressed on two side surfaces of the steel bar, and the embedded groove 3 can be matched to limit rotation, so that the steel bar can be kept stable during rotation; when the first connecting plate 231 is pressed against the surface of the steel bar, when the extrusion force is too large, the end part of the first connecting frame 26 moves relative to the connecting cylinder, namely the first connecting frame 26 is inserted into the connecting cylinder, and the friction force between the first connecting frame 26 and the connecting cylinder limits the extrusion force of the first connecting plate 231 on the steel bar, so that the steel bar is prevented from being damaged due to excessive extrusion; wherein in the process that the first connecting plate 231 is propped against the surface of the steel bar, the first rotating roller 28 can replace the bottom surface of the first connecting plate 231 to be propped against the surface of the steel bar, and the first rotating roller 28 synchronously rotates when the steel bar rotates, so that the probability of scratches generated by friction between the surface of the steel bar and the first connecting plate 231 is reduced, and the surface quality of the steel bar is effectively protected; it should be noted that the notch of the embedded groove 3 is set to be arc-shaped, when receiving a steel bar with a larger size, the arc-shaped notch can increase the contact area with the steel bar, the contact between the first connecting plate 231 and the surface of the steel bar is in line contact, the contact area is far smaller than the contact area of the steel bar and the embedded groove 3, and the local extrusion force of the steel bar in the embedded groove 3 is limited.
When the steel bar rotates in the embedded groove 3, a friction heating phenomenon can occur between the embedded groove 3 and the steel bar, the backing plate 2 is heated at a higher temperature after long-time use, and the whole equipment is heated through heat transfer, so that long-time stable use is not facilitated; therefore, the inner wall of the embedded groove 3 is provided with the ventilation groove 31, the rectangular spray head 32 arranged in the ventilation groove 31 receives liquid water pumped by the water pump at the end part of the guide pipe 33, and the liquid water is sprayed upwards to the surface of the steel bar through the spray nozzle, and the water cooling and the heat dissipation are carried out at the friction heating position between the steel bar and the inside of the embedded groove 3, so that the heat dissipation efficiency of the backing plate 2 is improved; thereby improving the speed of reducing the whole equipment; when the device is used, the fan 35 arranged at the notch of the ventilation groove 31 is started, the fan 35 blows the liquid water falling into the ventilation groove 31 to flow to the other notch, and then the liquid water flowing out is received to a designated position through the receiving water pipe 34; wherein the limiting cylinder 4 is arranged at one side close to the rolling position between rolling wheels, the position of the steel bar passing through the limiting cylinder 4 close to rolling is limited, and when the steel bar is bent, the limiting cylinder 4 automatically straightens the bending degree, so that the rolling quality is improved; when the steel bar is rolled, the limiting plate 45 is driven to move to the uppermost position of the surface of the steel bar through the second telescopic rod 43 and the second connecting frame 44, and the supporting plate 13 is matched with the supporting of the steel bar, so that the upper and lower positions of the steel bar are limited, and the influence of the bending of the steel bar on the rolling of the steel bar is weakened more; wherein when the steel bar is limited by the limiting plate 45, the second rotating roller 47 is driven to be positioned at the uppermost position on the surface of the steel bar by the second telescopic rod 43, and when the steel bar is bent upwards, the second rotating roller 47 is extruded to synchronously rotate.
Wherein to the billet of equidimension, peg graft section of thick bamboo 41 in restriction section of thick bamboo 4 inside, adjust restriction section of thick bamboo 4 and peg graft the size of section of thick bamboo 41 for the diameter of billet is the same with peg graft section of thick bamboo 41 internal diameter, when the billet runs through peg graft section of thick bamboo 41 and rotates, when the billet appears crooked, exists the extrusion force between crooked billet and the peg graft section of thick bamboo 41 inner wall, and then there is frictional force between billet and the peg graft section of thick bamboo 41 inner wall, the billet accessible frictional force is synchronous to drive peg graft section of thick bamboo 41 rotation, peg graft section of thick bamboo 41 and rotate in ring channel 46 through the connecting block 42 that the tip set up, continuous and restriction section of thick bamboo 4 inner wall relative slip produce the mar when avoiding the billet to rotate.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A screw production thread rolling machine which is characterized in that: the automatic rolling machine comprises a workbench (1), wherein a rolling assembly (11) is arranged on the top surface of the workbench (1), and the rolling assembly (11) comprises a driving structure, a power structure and rolling wheels; a bearing plate (13) is arranged on the top surface of the workbench (1) and between the rolling wheels, a cutting assembly (12) is arranged above the bearing plate (13), and the cutting assembly (12) is used for cutting off the rolled steel bar;
The rolling machine comprises a workbench (1), wherein a base plate (2) is arranged on the top surface of the workbench and positioned on one side of a rolling assembly (11), an embedded groove (3) is formed in the top surface of the base plate (2), and a notch on one side of the embedded groove (3) facing the rolling assembly (11) points to a rolling position between two rolling wheels; a pair of sliding grooves (21) are formed in the top surface of the base plate (2), a supporting rod (22) is connected inside the sliding grooves (21) in a sliding mode, a pressing plate (23) is installed at the top end of the supporting rod (22), and a first ejector rod (24) is arranged at the end portion of the pressing plate (23); the steel bar for screw production is matched with the embedded groove (3), and when the steel bar is embedded into the embedded groove (3), the steel bar extending out of the backing plate (2) can be supported by the top surface of the supporting plate (13); the bottom surface of the pressing plate (23) is equal to the uppermost position of the steel bar embedded into the embedded groove (3);
The pressing plate (23) comprises a first connecting plate (231) and a second connecting plate (232), the second connecting plate (232) is connected with the end part of the first ejector rod (24), and the first connecting plate (231) is positioned at one side of the second connecting plate (232) far away from the first ejector rod (24); the top surface of the second connecting plate (232) is provided with a first telescopic rod (25), the top end of the output end of the first telescopic rod (25) is fixedly connected with a first connecting frame (26), and a connecting piece (27) is arranged between the first connecting frame (26) and the top surface of the first connecting plate (231);
Placing a steel bar to be rolled into an embedded groove (3) formed in the top surface of the backing plate (2), wherein the size of the steel bar is matched with the size of the embedded groove (3), and a manipulator or a person drives the steel bar in the embedded groove (3) so that a rolling area at the end part of the steel bar enters between rolling wheels of the rolling assembly (11) and is supported by a supporting plate (13); the end that push rod (24) kept away from to clamp plate (23) is connected with hydraulic assembly output, after the billet position is confirmed, start hydraulic assembly, hydraulic assembly output drives to push plate (23) and removes, the bottom surface of push plate (23) is high with the billet top position of embedding embedded groove (3) etc. can restrict the billet when push plate (23) remove the top position of billet, stop when push plate (23) that are located the billet both sides remove mutual butt joint, the billet is through push plate (23) restriction after embedding embedded groove (3), the cooperation of spout (21) and branch (22) makes push plate (23) keep moving stable, afterwards start rolling subassembly (11), the position of driving structure removal rolling wheel, the power structure drives rolling wheel rotation, rolling wheel rolling surface of billet, drive the billet rotation, the billet is at embedded groove (3) rotation when the billet bending appears, can only be restricted by push plate (23) when bending part rotates, make and can only go on in embedded groove (3) during rotation.
2. A screw production thread rolling machine according to claim 1, characterized in that: the connecting piece (27) is specifically a connecting cylinder, and the bottom end of the first connecting frame (26) is inserted into the connecting cylinder and has friction force with the connecting cylinder.
3. A screw production thread rolling machine according to claim 1, characterized in that: the bottom surface of the first connecting plate (231) is rotatably connected with a first rotating roller (28).
4. A screw production thread rolling machine according to claim 1, characterized in that: an air vent groove (31) is formed in the inner wall of the embedded groove (3), a rectangular spray head (32) is arranged in the air vent groove (31), and the spray nozzle of the rectangular spray head (32) sprays vertically upwards; the end part of the rectangular spray head (32) is connected with a guide pipe (33) in a penetrating way, and the end part of the guide pipe (33) far away from the rectangular spray head (32) is communicated with a water pump.
5. A screw production thread rolling machine as claimed in claim 4, wherein: the air vent groove (31) is provided with a fan (35) near one side notch of the rolling assembly (11), the notch of the other side of the air vent groove (31) is provided with a water receiving pipe (34), and the water receiving pipe (34) can receive liquid water flowing out of the air vent groove (31).
6. A screw production thread rolling machine according to claim 1, characterized in that: a limiting cylinder (4) is arranged between the base plate (2) and the rolling wheel, and a supporting piece is arranged between the limiting cylinder (4) and the workbench (1); when the steel bar to be rolled is embedded into the embedded groove (3) and is received by the top surface of the receiving plate (13), the center line of the steel bar passes through the cylinder center of the limiting cylinder (4), and the diameter of the steel bar is the same as the inner diameter of the limiting cylinder (4).
7. A screw production thread rolling machine as claimed in claim 6, wherein: the top surface of restriction section of thick bamboo (4) is installed second telescopic link (43), the top fixedly connected with second link (44) of second telescopic link (43) output, tip fixedly connected with limiting plate (45) of second telescopic link (43) are kept away from to second link (44), limiting plate (45) are located directly over the roll extrusion position between the rolling wheel, and can not influence rolling wheel normal work when limiting plate (45) downwardly moving and billet surface contact.
8. A screw production thread rolling machine as claimed in claim 7, wherein: the bottom surface of the limiting plate (45) is rotatably connected with a second rotating roller (47).
9. A screw production thread rolling machine as claimed in claim 6, wherein: the inside grafting of restriction section of thick bamboo (4) has grafting section of thick bamboo (41), annular channel (46) have been seted up to the tip of restriction section of thick bamboo (4), the inside grafting of annular channel (46) has connecting block (42), the part that connecting block (42) are located outside annular channel (46) is connected with the tip of grafting section of thick bamboo (41).
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| CN202311071790.8A CN117245042B (en) | 2023-08-24 | 2023-08-24 | Screw production thread rolling machine |
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Citations (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR921630A (en) * | 1943-08-05 | 1947-05-13 | Eaton Mfg Co | Improvements to rolling threading devices |
| FR1469156A (en) * | 1965-12-29 | 1967-02-10 | Rivex | Improvements to screw thread rolling machines |
| KR200166606Y1 (en) * | 1999-08-23 | 2000-02-15 | 임주영 | Screw processing appartus for an automatic long bolt molder |
| JP2003001356A (en) * | 2001-06-21 | 2003-01-07 | Star Micronics Co Ltd | Screw rolling apparatus |
| KR20120011449A (en) * | 2010-07-29 | 2012-02-08 | 천 식 김 | Device for punching and blanking of metal plate |
| KR20180007111A (en) * | 2016-07-12 | 2018-01-22 | 김철복 | Spiral pipe manufacturing apparatus and method |
| KR101833793B1 (en) * | 2017-03-23 | 2018-04-13 | 태양금속공업(주) | A Spindle Screw Forming Apparatus |
| CN208467139U (en) * | 2018-07-26 | 2019-02-05 | 张家口双宁彩钢有限公司 | Rolled thread auxiliary tool |
| JP2019203579A (en) * | 2018-05-25 | 2019-11-28 | 山田 榮子 | High tensile strength bolt and manufacturing method thereof |
| CN209697930U (en) * | 2019-02-18 | 2019-11-29 | 台山市金组合脚手架有限公司 | Screw-rolling machine is used in a kind of production of aluminum pipe |
| CN210305564U (en) * | 2019-07-30 | 2020-04-14 | 山东瑞标机械股份有限公司 | Bolt thread rolling machine |
| CN211758263U (en) * | 2019-12-31 | 2020-10-27 | 河南建升汽车零部件有限公司 | Scrap blowing and cleaning device for thread rolling of automobile parts |
| CN212121529U (en) * | 2020-05-16 | 2020-12-11 | 浙江诚昌机械配件有限公司 | High-precision thread rolling machine |
| CN112207216A (en) * | 2020-09-29 | 2021-01-12 | 昆山捷若尔精密机械有限公司 | Operation method of automatic screw rolling mechanism |
| CN212384494U (en) * | 2020-06-05 | 2021-01-22 | 河北中久能源科技有限公司 | Wind-powered electricity generation crab-bolt thread rolling fixing device |
| CN213052511U (en) * | 2020-05-22 | 2021-04-27 | 童姝 | A reinforcing bar cutting device for building engineering |
| CN113510206A (en) * | 2021-04-08 | 2021-10-19 | 苏州施普曼精密制造科技有限公司 | High-precision feeding mechanism of thread rolling machine |
| CN214814479U (en) * | 2021-05-28 | 2021-11-23 | 山东美陵化工设备股份有限公司 | Double-end stud thread machining device |
| CN215279690U (en) * | 2021-07-01 | 2021-12-24 | 亚细亚精密五金(苏州)有限公司 | Screw heading and thread rolling integrated equipment |
| CN114951519A (en) * | 2022-05-18 | 2022-08-30 | 湘潭大学 | Full-automatic feeding and discharging screw rod thread rolling device with positioning function |
| CN217474728U (en) * | 2022-02-24 | 2022-09-23 | 太仓海创机械有限公司 | Thread rolling machine capable of automatically feeding |
| CN217666142U (en) * | 2022-02-08 | 2022-10-28 | 青岛华瑞封闭器有限公司 | Screw thread rolling processing device for opening cover |
| CN218019269U (en) * | 2022-04-29 | 2022-12-13 | 泰州润伟机械有限公司 | Tensioning device for prestressed pipe pile end plate |
| CN219005370U (en) * | 2023-01-29 | 2023-05-12 | 杭州轻工技师学院 | Clamping mechanism for machine tool machining workpiece |
-
2023
- 2023-08-24 CN CN202311071790.8A patent/CN117245042B/en active Active
Patent Citations (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR921630A (en) * | 1943-08-05 | 1947-05-13 | Eaton Mfg Co | Improvements to rolling threading devices |
| FR1469156A (en) * | 1965-12-29 | 1967-02-10 | Rivex | Improvements to screw thread rolling machines |
| KR200166606Y1 (en) * | 1999-08-23 | 2000-02-15 | 임주영 | Screw processing appartus for an automatic long bolt molder |
| JP2003001356A (en) * | 2001-06-21 | 2003-01-07 | Star Micronics Co Ltd | Screw rolling apparatus |
| KR20120011449A (en) * | 2010-07-29 | 2012-02-08 | 천 식 김 | Device for punching and blanking of metal plate |
| KR20180007111A (en) * | 2016-07-12 | 2018-01-22 | 김철복 | Spiral pipe manufacturing apparatus and method |
| KR101833793B1 (en) * | 2017-03-23 | 2018-04-13 | 태양금속공업(주) | A Spindle Screw Forming Apparatus |
| JP2019203579A (en) * | 2018-05-25 | 2019-11-28 | 山田 榮子 | High tensile strength bolt and manufacturing method thereof |
| CN208467139U (en) * | 2018-07-26 | 2019-02-05 | 张家口双宁彩钢有限公司 | Rolled thread auxiliary tool |
| CN209697930U (en) * | 2019-02-18 | 2019-11-29 | 台山市金组合脚手架有限公司 | Screw-rolling machine is used in a kind of production of aluminum pipe |
| CN210305564U (en) * | 2019-07-30 | 2020-04-14 | 山东瑞标机械股份有限公司 | Bolt thread rolling machine |
| CN211758263U (en) * | 2019-12-31 | 2020-10-27 | 河南建升汽车零部件有限公司 | Scrap blowing and cleaning device for thread rolling of automobile parts |
| CN212121529U (en) * | 2020-05-16 | 2020-12-11 | 浙江诚昌机械配件有限公司 | High-precision thread rolling machine |
| CN213052511U (en) * | 2020-05-22 | 2021-04-27 | 童姝 | A reinforcing bar cutting device for building engineering |
| CN212384494U (en) * | 2020-06-05 | 2021-01-22 | 河北中久能源科技有限公司 | Wind-powered electricity generation crab-bolt thread rolling fixing device |
| CN112207216A (en) * | 2020-09-29 | 2021-01-12 | 昆山捷若尔精密机械有限公司 | Operation method of automatic screw rolling mechanism |
| CN113510206A (en) * | 2021-04-08 | 2021-10-19 | 苏州施普曼精密制造科技有限公司 | High-precision feeding mechanism of thread rolling machine |
| CN214814479U (en) * | 2021-05-28 | 2021-11-23 | 山东美陵化工设备股份有限公司 | Double-end stud thread machining device |
| CN215279690U (en) * | 2021-07-01 | 2021-12-24 | 亚细亚精密五金(苏州)有限公司 | Screw heading and thread rolling integrated equipment |
| CN217666142U (en) * | 2022-02-08 | 2022-10-28 | 青岛华瑞封闭器有限公司 | Screw thread rolling processing device for opening cover |
| CN217474728U (en) * | 2022-02-24 | 2022-09-23 | 太仓海创机械有限公司 | Thread rolling machine capable of automatically feeding |
| CN218019269U (en) * | 2022-04-29 | 2022-12-13 | 泰州润伟机械有限公司 | Tensioning device for prestressed pipe pile end plate |
| CN114951519A (en) * | 2022-05-18 | 2022-08-30 | 湘潭大学 | Full-automatic feeding and discharging screw rod thread rolling device with positioning function |
| CN219005370U (en) * | 2023-01-29 | 2023-05-12 | 杭州轻工技师学院 | Clamping mechanism for machine tool machining workpiece |
Non-Patent Citations (1)
| Title |
|---|
| 精密螺栓滚压工艺参数的选择;李刚;李兴菊;刘阳学;;机车车辆工艺;20060830(第04期);7-8 * |
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