CN116532595A - Screw thread processing equipment for manufacturing fastener bolt - Google Patents
Screw thread processing equipment for manufacturing fastener bolt Download PDFInfo
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- CN116532595A CN116532595A CN202310653259.5A CN202310653259A CN116532595A CN 116532595 A CN116532595 A CN 116532595A CN 202310653259 A CN202310653259 A CN 202310653259A CN 116532595 A CN116532595 A CN 116532595A
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- block
- thread rolling
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- groove
- thread
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 238000005096 rolling process Methods 0.000 claims abstract description 164
- 238000002360 preparation method Methods 0.000 claims abstract description 55
- 238000000034 method Methods 0.000 claims abstract description 10
- 230000008569 process Effects 0.000 claims abstract description 10
- 230000033001 locomotion Effects 0.000 claims description 21
- 230000005540 biological transmission Effects 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 210000001161 mammalian embryo Anatomy 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 description 6
- 238000005381 potential energy Methods 0.000 description 5
- 230000003068 static effect Effects 0.000 description 5
- 238000003860 storage Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003031 feeding effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
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- 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
- B21H3/06—Making by means of profiled members other than rolls, e.g. reciprocating flat dies or jaws, moved longitudinally or curvilinearly with respect to each other
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- 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
- B21H9/00—Feeding arrangements for rolling machines or apparatus manufacturing articles dealt with in this subclass
- B21H9/02—Feeding arrangements for rolling machines or apparatus manufacturing articles dealt with in this subclass for screw-rolling machines
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- 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
Abstract
The invention discloses a thread processing device for manufacturing a fastener bolt, which comprises a frame, wherein a fixed thread rolling block is fixedly arranged on the frame, a movable thread rolling block is slidably arranged on the frame, the close surfaces of the fixed thread rolling block and the movable thread rolling block are mutually parallel, and a thread rolling gap for processing threads by a bolt blank is formed, and the thread processing device further comprises: the preparation rail is arranged on the fixed thread rolling block, one end of the preparation rail is communicated with the thread rolling gap, and the other end of the preparation rail is used for placing a bolt blank; the pushing block is movably arranged in the preparation track and is linked with the movable thread rolling block through the linkage assembly. According to the invention, the linkage assembly is arranged, so that the pushing block in the preparation track can be linked to move synchronously in the back-off process of the movable thread rolling block, the pushing block pushes the bolt blank parked in the preparation track into the thread rolling gap, when the movable thread rolling block moves to the starting position of thread rolling processing, the bolt blank just enters the thread rolling gap, and then the movable thread rolling block can be moved to roll threads in the thread rolling gap to form threads.
Description
Technical Field
The invention relates to the technical field of bolt production, in particular to thread processing equipment for manufacturing a fastener bolt.
Background
The bolt is a common fastener, threads on the surface of a rod body are produced by adopting two parallel plates to carry out thread rolling production by means of surface lines in mass production, the production efficiency is high, the conventional thread processing equipment adopting a thread rolling mode can basically meet the daily use requirements, and the improvement is still required for some defects.
Patent document CN114378230a and publication day 2022, 04 and 22 disclose a bolt thread rolling device, which comprises the following steps: the screw machine comprises a screw mechanism, a feeding mechanism, a machine table and a controller, wherein the screw mechanism is arranged on the machine table and comprises a movable screw plate, a static screw plate and a screw cylinder, the movable screw plate and the static screw plate which are parallel to each other are oppositely arranged on one surface with screw lines and form a slit for a screw rod of a bolt blank to be screwed to enter, the screw cylinder drives the movable screw plate to linearly move back and forth along a long side, the feeding mechanism is arranged on the machine table and is positioned at one end of the long side of the static screw plate, a notch is formed in the table top of the machine table at the other end of the long side of the static screw plate, the bolt blank which is spitted out by the feeding mechanism rotates in the slit in one side and linearly moves to the other end of the long side of the static screw plate until the bolt blank falls into the notch under the relative movement of the movable screw plate, automatic feeding, screwing and discharging of the bolt can be realized, no cooperation work is required for workers, and machining efficiency and precision are greatly improved.
In the prior art of the above patent, the bolt blank needs to be fed by an independent driving unit, and in such a device, the thread rolling mechanism is also driven by an independent driving unit, and the two driving units are mutually matched according to a specified time sequence, so that the accurate feeding of the bolt blank can be realized, and therefore, a thread processing device for manufacturing the fastener bolt is needed to solve the above problems.
Disclosure of Invention
The object of the present invention is to provide a thread machining device for manufacturing a fastener bolt, which solves the above-mentioned drawbacks of the prior art.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model provides a screw thread processing equipment of preparation fastener bolt, includes the frame, fixed thread rolling piece, the slip of being provided with of frame are provided with and move the thread rolling piece, fixed thread rolling piece is parallel to each other with the close face of moving the thread rolling piece and form the thread rolling clearance that supplies the bolt embryo material to process the screw thread, still includes: the preparation rail is arranged on the fixed thread rolling block, one end of the preparation rail is communicated with the thread rolling gap, and the other end of the preparation rail is used for placing a bolt blank; the pushing block is movably arranged in the preparation track and is linked with the movable thread rolling block through the linkage assembly, and in the process of backing the thread rolling by the movable thread rolling block, the pushing block pushes the bolt blank in the preparation track into the thread rolling gap.
Preferably, the linkage assembly comprises a circular plate which is rotationally arranged in the fixed thread rolling block, a handle rod is eccentrically and fixedly arranged on the circular plate, a sliding sleeve is movably sleeved on the handle rod, and one end of the sliding sleeve movably extends into the preparation track and is fixedly connected with the pushing block.
Preferably, the linkage assembly comprises a cantilever fixedly arranged at the upper end of the fixed thread rolling block, a first gear and a second gear which are meshed with each other are rotatably arranged in the cantilever, the first gear is fixedly connected with a circular plate coaxially through a transmission shaft, and a first rack matched with the second gear is arranged at the upper end of the movable thread rolling block.
Preferably, the upper end of the movable thread rolling block is provided with an orientation cylinder, the first rack is fixedly arranged on the side wall of the orientation cylinder, and the cantilever is provided with a perforation matched with the orientation cylinder.
Preferably, one end of the orientation cylinder is elastically and movably connected with the movable thread rolling block, the other end of the orientation cylinder is rotatably provided with a rotary block, the inner wall of the perforation is provided with a limiting component for limiting the movement of the rotary block, and the rotary block rotates when the orientation cylinder and the movable thread rolling block relatively move.
Preferably, the limiting assembly comprises an avoidance groove arranged on the inner wall of the through hole, a limiting part which can movably extend out of the avoidance groove is connected in the avoidance groove through a first spring, and a groove matched with the limiting part is formed in the rotary block.
Preferably, a movable groove is formed in the orientation cylinder, a sliding block is movably arranged in the movable groove, the lower end of the sliding block is fixedly connected with the movable thread rolling block through a connecting piece penetrating through the orientation cylinder in a sliding mode, a second spring is arranged between one end of the sliding block and the inner wall of the movable groove, a sleeve is fixedly arranged at one end of the sliding block, a rotating rod is movably connected in the sleeve in a spiral mode, and one end, far away from the sleeve, of the rotating rod penetrates through the orientation cylinder in a rotating mode and is fixedly connected with the rotating block in a coaxial mode.
Preferably, the inner wall of the preparation track is provided with a storage groove, a stop lever is rotationally arranged in the storage groove, and the rotation of the stop lever is linked with the movement of the pushing block.
Preferably, a linkage groove is formed in the fixed thread rolling block, a third gear coaxially connected with the stop lever rotating shaft is rotationally arranged in the linkage groove, a second rack is connected with the third gear in a meshed mode, and a third spring is connected between one end of the second rack and the inner wall of the linkage groove.
Preferably, the second rack is fixedly provided with a convex block which movably extends into the preparation track, and a side wall of the pushing block is provided with a sliding groove matched with the convex block.
In the technical scheme, the invention has the beneficial effects that:
according to the thread processing equipment for manufacturing the fastener bolt, the linkage assembly is arranged, the pushing block in the preliminary track can be linked to move synchronously in the process of backing the thread by the movable thread rolling block, the pushing block pushes the bolt blank parked in the preliminary track into the thread rolling gap, when the movable thread rolling block moves to the starting position of thread rolling processing, the bolt blank just completely enters the thread rolling gap, then the movable thread rolling block moves to roll the thread in the thread rolling gap to form threads, the feeding of the bolt blank and the movable thread rolling block are directly linked, an independent driving unit required by feeding is omitted, and the movement linkage relation between the feeding of the bolt blank and the movable thread rolling block is more stable and accurate.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
This document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all of the features of the disclosed technology.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a schematic diagram of an overall structure according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a linkage assembly according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a front cross-sectional structure according to an embodiment of the present invention;
FIG. 4 is a schematic top view of a cross-sectional structure of an inner portion of a cantilever according to an embodiment of the present invention;
FIG. 5 is an enlarged schematic view of the structure shown in FIG. 4A according to an embodiment of the present invention;
FIG. 6 is a schematic top view of a cross-sectional structure of a linkage groove according to an embodiment of the present invention;
FIG. 7 is an enlarged schematic view of the structure shown in FIG. 6B according to an embodiment of the present invention;
fig. 8 is a schematic top sectional view of a sliding sleeve according to an embodiment of the present invention.
Reference numerals illustrate:
1. a frame; 2. a thread rolling block is fixed; 3. a dynamic thread rolling block; 4. a pushing block; 5. a circular plate; 6. a handle; 7. a slip sleeve; 8. a cantilever; 9. a first gear; 10. a second gear; 11. a transmission shaft; 12. a first rack; 13. a directional cylinder; 14. perforating; 15. rotating the block; 16. avoidance grooves; 17. a first spring; 18. a limiting piece; 19. a groove; 20. a movable groove; 21. a sliding block; 22. a connecting piece; 23. a second spring; 24. a sleeve; 25. a rotating rod; 26. a storage groove; 27. a stop lever; 28. a linkage groove; 29. a third gear; 30. a second rack; 31. a third spring; 32. a bump; 33. and a sliding groove.
Description of the embodiments
In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. It will be apparent that the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments, which can be made by one of ordinary skill in the art without the need for inventive faculty, are within the scope of the present disclosure, based on the described embodiments of the present disclosure.
Referring to fig. 1-8, the thread processing device for manufacturing a fastener bolt provided by the embodiment of the invention includes a frame 1, a fixed thread rolling block 2 is fixedly arranged on the frame 1, a movable thread rolling block 3 is slidably arranged on the frame 1, the fixed thread rolling block 2 and the movable thread rolling block 3 are parallel to each other on the similar surfaces and form a thread rolling gap for processing threads by a bolt blank, and the thread processing device further includes: the preparation rail is arranged on the fixed thread rolling block 2, one end of the preparation rail is communicated with the thread rolling gap, and the other end of the preparation rail is used for placing a bolt blank; the pushing block 4 is movably arranged in the preparation track and is linked with the movable thread rolling block 3 through a linkage assembly, and the pushing block 4 pushes bolt blanks in the preparation track into thread rolling gaps in the thread rolling back process of the movable thread rolling block 3.
Specifically, the rack 1 is used for carrying the whole equipment, and only part of the rack is shown in the drawing; a driving unit for driving the movable thread rolling block 3 to reciprocate is arranged on the frame 1, and the driving unit can be preferably a hydraulic cylinder or an electric telescopic device; a sliding rail for limiting the moving direction of the movable thread rolling block 3 is arranged on the frame 1, so that the movable thread rolling block 3 slides relatively parallel to the fixed thread rolling block 2; the surfaces of the fixed thread rolling block 2 and the movable thread rolling block 3, which are close to each other, are provided with thread rolling lines for machining threads on the surfaces of the bolt blanks. The rod part of the bolt blank is embedded into the thread rolling gap, and the head part of the bolt blank can be supported on the upper side of the thread rolling gap by the fixed thread rolling block 2 and the movable thread rolling block 3; the thread rolling gap follows the change of the alternate length of the movement of the thread rolling block 3 and the change of the position of the thread rolling block 2, and when the thread rolling gap is in the shortest state close to the direction of the preparation track, the initial state of the thread rolling gap for processing the bolt blank is the initial state; when the thread rolling gap is in the shortest state far away from the direction of the preparation track, namely the termination state of the thread rolling gap for processing the bolt blanks, and at the moment, the bolt blanks finish thread processing and leave the thread rolling gap. The rod part of the bolt blank is embedded into the preparation track, and the head part is supported on the upper side of the preparation track; the preparation track is L-shaped on the fixed thread rolling block 2, one end of the preparation track far away from the thread rolling gap is butted with a feeding track fixedly connected with the fixed thread rolling block 2, and batch of bolt blanks slide into the preparation track from the feeding track. The upper end of the pushing block 4 is not higher than the highest position of the preparation track; the pushing block 4 slides along a section of the prepared rail communicated with the thread rolling gap; the pushing block 4 pushes the rod part of the bolt blank to drive the bolt blank to move. In actual use, the bolt blanks enter one end of the preparation track far away from the thread rolling gap from the feeding track, at the moment, the thread rolling gap is in a stop state, then the movable thread rolling block 3 starts to move back, then the linkage assembly is used for linking the pushing block 4 to move so as to push the bolt blanks to move towards the thread rolling gap, when the movable thread rolling block 3 backs to the state that the thread rolling gap returns to the initial state, the bolt blanks just completely enter the thread rolling gap, then the movable thread rolling block 3 drives the bolt blanks again, so that the bolt blanks are threaded in the thread rolling gap and can be directly fed, the feeding of the bolt blanks is directly linked with the movable thread rolling block 3, an independent driving unit required by the feeding is omitted, and the movement linkage relation between the feeding of the bolt blanks and the movable thread rolling block 3 is more stable and accurate.
Compared with the prior art, the thread processing equipment for manufacturing the fastener bolt provided by the embodiment of the invention has the advantages that the linkage assembly is arranged, the push block 4 in the preparation track can be linked to move synchronously in the process of backing the thread by the movable thread rolling block 3, the push block 4 pushes the bolt blank parked in the preparation track into the thread rolling gap, when the movable thread rolling block 3 moves to the starting position of thread rolling processing, the bolt blank just completely enters the thread rolling gap, then the movable thread rolling block 3 can move to roll the thread in the thread rolling gap to form threads, the feeding of the bolt blank and the movable thread rolling block 3 are directly linked, an independent driving unit required by the feeding is omitted, and the movement linkage relation between the feeding of the bolt blank and the movable thread rolling block 3 is more stable and accurate.
As the preferable technical scheme of this embodiment, the linkage assembly includes fixing the plectane 5 that the rotation of thread rolling piece 2 set up, the eccentric fixed handle pole 6 that is provided with on the plectane 5, the movable cover is equipped with on the handle pole 6 and slides the cover 7, slide cover 7 one end activity and extend to in the preparation track and with pusher 4 fixed connection, concretely, the rotation of plectane 5 can drive handle pole 6 and do the motion of circular arc line orbit, pusher 4 is limited in the preparation track removal direction, then through the setting of slide cover 7, can break down the arc motion that handle pole 6 takes place along with the plectane 5 rotation into the slip of handle pole 6 in slide cover 7 and the removal of handle pole 6 drive slide cover 7, then drive pusher 4 can remove in the preparation track.
As a preferred technical scheme of the embodiment, the linkage assembly comprises a cantilever 8 fixedly arranged at the upper end of a fixed thread rolling block 2, a first gear 9 and a second gear 10 which are meshed with each other are rotationally arranged in the cantilever 8, the first gear 9 is coaxially and fixedly connected with a circular plate 5 through a transmission shaft 11, a first rack 12 matched with the second gear 10 is arranged at the upper end of a movable thread rolling block 3, and the cantilever 8 is particularly used for lifting the first gear 9, the second gear 10 and related structures to a certain height away from the upper ends of the fixed thread rolling block 2 and the movable thread rolling block 3 so as to avoid interference with bolt blanks in the processing process; the extending direction of the first rack 12 is consistent with the moving direction of the movable thread rolling block 3; the complete meshing transmission of the first rack 12 and the second gear 10 causes the second gear 10 to rotate half a turn, the first gear 9 being the same size as the second gear 10, thereby causing the first gear 9 to also rotate only half a turn; the meshing transmission of the first rack 12 and the second gear 10 occurs in the later stage of the retraction of the movable thread rolling die 3.
As a further preferable technical scheme of the embodiment, the upper end of the movable thread rolling block 3 is provided with an orientation cylinder 13, the first gear 12 is fixedly arranged on the side wall of the orientation cylinder 13, the cantilever 8 is provided with a perforation 14 matched with the orientation cylinder 13, the orientation cylinder 13 is in a cylindrical shape, the orientation cylinder 13 moves with the movable thread rolling block 3 to pass through the perforation 14 back and forth, one side of the perforation 14 is provided with a through groove matched with the first gear 12, the second gear 10 extends into the through groove, and the first gear 12 and the second gear 10 are ensured to be meshed without interference with the movement of the orientation cylinder 13.
As a still further preferable technical scheme of the embodiment, one end of the orientation cylinder 13 is elastically and movably connected with the movable thread rolling block 3, the other end of the orientation cylinder 13 is rotatably provided with a rotary block 15, the inner wall of the through hole 14 is provided with a limiting component for limiting the movement of the rotary block 15, when the orientation cylinder 13 and the movable thread rolling block 3 relatively move, the rotary block 15 rotates, and specifically, the rotary block 15 is cylindrical and is consistent with the outer diameter of the orientation cylinder 13; when the movable thread rolling block 3 is retracted to enable the thread rolling gap to be in an initial state, the rotary block 15 is positioned in the through hole 14 and limited by the limiting component, so that the position limitation of the first rack 12 is ensured, then the push block 4 is limited in the position of the preparation track through the second gear 10, the first gear 9, the transmission shaft 11, the circular plate 5, the handle rod 6 and the sliding sleeve 7, and the end face of the push block 4 for pushing the bolt blank is just flush with the inner wall of the thread rolling gap; when the movable thread rolling block 3 starts to move to thread a bolt blank, the orientation cylinder 13 is still kept fixed under the action of the rotary block 15 and the limiting component, so that the movable thread rolling block 3 and the orientation cylinder 13 relatively move, the rotary block 15 is triggered to rotate, the limiting component is enabled to cancel the limitation of the rotary block 15, the orientation cylinder 13 is enabled to resume moving, and then the push block 4 moves away from a thread rolling gap in a preparation track through the first rack 12, the second gear 10, the first gear 9, the transmission shaft 11, the circular plate 5, the handle rod 6 and the sliding sleeve 7, namely resetting is carried out.
As a still further preferable technical scheme of the embodiment, the limiting assembly comprises an avoidance groove 16 arranged on the inner wall of the through hole 14, a limiting piece 18 which can movably extend out of the avoidance groove 16 is connected in the avoidance groove 16 through a first spring 17, a groove 19 matched with the limiting piece 18 is formed on the rotary block 15, and specifically, referring to fig. 5, one side of the end part of the limiting piece 18 extending out of the avoidance groove 16 is provided with an inclined plane, namely, the limiting piece 18 does not obstruct the directional cylinder 13 from entering from the left side of the through hole 14 in the drawing; when the orientation cylinder 13 continues to pass through the through hole 14 rightward so that the groove 19 on the rotary block 15 corresponds to the limiting piece 18, the limiting piece 18 can be embedded into the groove 19 to limit the orientation cylinder 13 to drive the rotary block 15 to move back; the groove 19 is a notch formed in the outer circumferential surface of the rotary block 15, and the edge of the groove 19 is in transition arrangement with the outer circumferential surface of the rotary block 15; when the rotation of the rotary block 15 occurs, the rotary block 15 can extrude the limiting piece 18 through the outer surface, so that the limiting piece 18 retracts into the avoidance groove 16, and when the rotary block 15 is completely propped against the limiting piece 18 by the outer circular surface, the limiting piece 18 does not prevent the rotary block 15 and the directional cylinder 13 from moving leftwards any more because the outer diameter of the rotary block 15 is always equal to the outer diameter of the directional cylinder 13.
As a still further preferable technical scheme of the embodiment, a movable groove 20 is arranged in the orientation cylinder 13, a sliding block 21 is movably arranged in the movable groove 20, the lower end of the sliding block 21 is fixedly connected with the movable thread rolling block 3 through a connecting piece 22 penetrating through the orientation cylinder 13 in a sliding manner, a second spring 23 is arranged between one end of the sliding block 21 and the inner wall of the movable groove 20, a sleeve 24 is fixedly arranged at one end of the sliding block 21, a rotary rod 25 is movably connected in the sleeve 24 in a spiral manner, one end of the rotary rod 25 far away from the sleeve 24 rotates to penetrate through the orientation cylinder 13 and is fixedly connected with the rotary block 15 in a coaxial manner, and particularly, the sliding block 21 is fixed in a relative position between the movable thread rolling block 3 through the connecting piece 22, and the relative position of the second spring 23 is fixed when the orientation cylinder 13 and the sliding block 21 are not influenced by external force; the second spring 23 is arranged at one end of the sliding block 21 close to the rotary block 15, and the second spring 23 keeps pushing the sliding block 21 to be at the farthest position from the rotary block 15; the inner wall of the sleeve 24 is provided with a spiral groove, the outer wall of the end part of the rotary rod 25 extending into the sleeve 24 is provided with a spiral wire, and the sleeve 24 and the rotary block 15 are axially moved relatively to each other so as to be driven to synchronously rotate relatively, so that when the sleeve 24 is fixedly connected with the sliding block 21 to axially move only relative to the orientation cylinder 13, the axial movement of the sleeve 24 and the rotary rod 25 can drive the rotary rod 25 to rotate relative to the orientation cylinder 13 through the spiral feeding effect, namely, the rotary block 15 is driven to rotate.
The following describes the linkage relation of the motion of the movable thread rolling block 3 to the parts: firstly, the movable thread rolling block 3 is positioned at a position which enables the thread rolling gap to be in a termination state, at the moment, the push block 4 is positioned at a position far away from the rubbing gap in a preparation track, a bolt blank is parked in the preparation track, and a directional cylinder 13 on the movable thread rolling block 3 is separated from a perforation 14; then, the movable thread rolling block 3 starts to move back, the orientation cylinder 13 approaches the perforation 14 and still keeps separating from each other, at the back stage of the movable thread rolling block 3, the orientation cylinder 13 starts to be inserted into the perforation 14, on one hand, the orientation cylinder extrudes the limiting piece 18 to enable the limiting piece 18 to retract into the avoidance groove 16, on the other hand, the first rack 12 drives the second gear 10 to rotate, then the first gear 9 and the transmission shaft 11 drive the circular plate 5 to rotate in sequence, the circular plate 5 drives the handle rod 6 to do arc track movement, and then the pushing block 4 is driven to move towards the direction approaching the thread rolling gap through the sliding sleeve 7 so as to push the bolt blank in the preparation track towards the thread rolling gap; when the movable thread rolling block 3 is retracted and moved to enable the thread rolling gap to be in an initial state, the bolt blank completely enters the thread rolling gap, the pushing block 4 pushes the end face of the bolt blank to be flush with the inner wall of the thread rolling gap, the orientation cylinder 13 drives the groove 19 on the rotary block 15 to correspond to the limiting piece 18, and the limiting piece 18 is ejected and embedded into the groove 19 under the action of the first spring 17 so as to limit the rotary block 15 to move back; then, the movable thread rolling block 3 starts to drive the bolt blank to move so as to carry out thread rolling, at this time, as the movement of the rotary block 15 is limited, the movable thread rolling block 3 drives the sliding block 21 to move in the movable groove 20 to be close to the direction of the rotary block 15 through the connecting piece 22, the second spring 23 extrudes and compresses and stores elastic potential energy, the sliding block 21 also drives the sleeve 24 to move so as to enable the rotary rod 25 and the sleeve 24 to generate spiral feeding action, the rotary rod 25 is driven to rotate, the rotary rod 25 drives the rotary block 15 to rotate so as to enable the groove 19 to slowly deviate from the limiting piece 18, the outer circular surface of the rotary block 15 is slowly extruded with the limiting piece 18, in the process, the orientation cylinder 13 keeps the position fixed, the push block 4 keeps one end surface of the push block flush with the inner wall of the thread rolling gap, and therefore the end surface of the push block 4 can keep the inner wall communicated with the prepared rail on the butt thread rolling gap, so that the bolt blank is driven by the movable thread rolling block 3 to be stably far away from the prepared rail, namely the problem that the bolt blank is moved back towards the prepared rail when driven by the movable thread rolling block 3 is avoided; when the rotary block 15 is completely propped against the limiting piece 18 by the outer circular surface, the limiting piece 18 does not block the movement of the rotary block 15 and the directional cylinder 13 any more because the outer diameter of the rotary block 15 is consistent with the outer diameter of the directional cylinder 13, at the moment, the elastic potential energy of the second spring 23 is released, the directional cylinder 13 is quickly popped out from the through hole 14, and then the push block 4 is driven to move back to be far away from the thread rolling gap by the first rack 12, the second gear 10, the first gear 9, the transmission shaft 11, the circular plate 5, the handle rod 6 and the sliding sleeve 7; the time delay return function of the push block 4 is realized, and the problem that the bolt blank possibly returns to the preparation track due to direct linkage of the push block 4 and the movable thread rolling block 3 is avoided; when the orientation cylinder 13 completely leaves the through hole 14, the push block 4 also moves back to the initial position, and the other bolt blank can smoothly enter the preparation track.
In another embodiment of the present invention, a receiving groove 26 is provided on the inner wall of the preparation track, a stop lever 27 is rotatably provided in the receiving groove 26, the rotation of the stop lever 27 is linked with the movement of the push block 4, specifically, when the push block 4 is at the initial position, the stop lever 27 is rotatably extended out of the receiving groove 26 and is blocked in the preparation track, thereby limiting the movement of the bolt blank in the preparation track, and when the push block 4 moves close to the direction of the thread rolling gap, the stop lever 27 is rotated into the receiving groove 26; the above functions define the sequential entry of individual bolt blanks into the preparation track.
As a preferred technical scheme of the embodiment, a linkage groove 28 is arranged in the fixed thread rolling block 2, a third gear 29 coaxially connected with a rotating shaft of the stop lever 27 is rotationally arranged in the linkage groove 28, a second rack 30 is connected with the third gear 29 in a meshed manner, a third spring 31 is connected between one end of the second rack 30 and the inner wall of the linkage groove 28, specifically, the second rack 30 can be meshed and driven with the third gear 29 to drive the stop lever 27 to rotate, and the direction of rotating and accommodating the stop lever 27 in the accommodating groove 26 is consistent with the direction of approaching movement of the push block 4 to the thread rolling gap; the third spring 31 is provided to maintain a relatively stable position in the interlocking groove 28 when the second rack 30 is not affected by an external force, and then to maintain the position of the bar 27 completely housed in the housing groove 26 by the third gear 29.
As a further preferable technical scheme of the present embodiment, a protruding block 32 that movably extends into the preparation track is fixedly disposed on the second rack 30, a side wall of the push block 4 is provided with a sliding groove 33 that matches with the protruding block 32, specifically, referring to fig. 8, when the push block 4 moves back to the initial position, the protruding block 32 is pushed by the inner wall of the sliding groove 33, and then the second rack 30 is driven to move, the second rack 30 presses the third spring 31, the third spring 31 compresses and stores elastic potential energy, and the second rack 30 is meshed with the third gear 29 to drive the stop lever 27 to rotate and stretch out of the storage groove 26 to be blocked in the preparation track. The third spring 31 can release elastic potential energy due to the fact that the orientation cylinder 13 is separated from the through hole 14, but the protrusion 32 is hooked with the inner wall of the sliding groove 33, the elastic potential energy of the third spring 31 is released to drive the second rack 30 to move, the protrusion 32 can apply force to the inner wall of the sliding groove 33 to drive the push block 4 to move, and therefore the push block 4 can still block other bolt blanks from entering the preparation track.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the invention, which is defined by the appended claims.
Claims (10)
1. The utility model provides a screw thread processing equipment of preparation fastener bolt, includes frame (1), fixed thread rolling piece (2) of being provided with on frame (1), sliding are provided with and move thread rolling piece (3), fixed thread rolling piece (2) and move thread rolling piece (3) close face parallel to each other and form the thread rolling clearance that supplies the bolt embryo to process the screw thread, its characterized in that still includes:
the preparation rail is arranged on the fixed thread rolling block (2), one end of the preparation rail is communicated with the thread rolling gap, and the other end of the preparation rail is used for placing a bolt blank;
the pushing block (4) is movably arranged in the preparation track and is linked with the movable thread rolling block (3) through the linkage assembly, and the pushing block (4) pushes the bolt blank in the preparation track into the thread rolling gap in the thread rolling back process of the movable thread rolling block (3).
2. The thread processing device for manufacturing the fastener bolt according to claim 1, wherein the linkage assembly comprises a circular plate (5) which is rotationally arranged in the thread rolling block (2), a handle rod (6) is eccentrically and fixedly arranged on the circular plate (5), a sliding sleeve (7) is movably sleeved on the handle rod (6), and one end of the sliding sleeve (7) movably extends into the preparation track and is fixedly connected with the pushing block (4).
3. The thread processing device for manufacturing a fastener bolt according to claim 2, wherein the linkage assembly comprises a cantilever (8) fixedly arranged at the upper end of the fixed thread rolling block (2), a first gear (9) and a second gear (10) which are meshed with each other are rotationally arranged in the cantilever (8), the first gear (9) is fixedly connected with a circular plate (5) coaxially through a transmission shaft (11), and a first rack (12) matched with the second gear (10) is arranged at the upper end of the movable thread rolling block (3).
4. A thread processing apparatus for manufacturing a fastener bolt according to claim 3, wherein the movable thread rolling block (3) is provided with an orientation cylinder (13) at an upper end thereof, the first rack (12) is fixedly disposed on a side wall of the orientation cylinder (13), and the cantilever (8) is provided with a through hole (14) matched with the orientation cylinder (13).
5. The thread processing device for manufacturing a fastener bolt according to claim 4, wherein one end of the orientation cylinder (13) is elastically movably connected with the movable thread rolling block (3), a rotating block (15) is rotatably arranged at the other end of the orientation cylinder (13), a limiting component for limiting the movement of the rotating block (15) is arranged on the inner wall of the through hole (14), and the rotating block (15) rotates when the orientation cylinder (13) and the movable thread rolling block (3) relatively move.
6. The thread processing apparatus for manufacturing a fastener bolt according to claim 5, wherein the limiting assembly comprises an avoidance groove (16) provided on an inner wall of the through hole (14), a limiting member (18) movably extending out of the avoidance groove (16) is connected in the avoidance groove (16) through a first spring (17), and a groove (19) matched with the limiting member (18) is provided on the rotary block (15).
7. The thread processing equipment for manufacturing a fastener bolt according to claim 5, wherein a movable groove (20) is formed in the orientation cylinder (13), a sliding block (21) is movably arranged in the movable groove (20), the lower end of the sliding block (21) is fixedly connected with the movable thread rolling block (3) through a connecting piece (22) penetrating through the orientation cylinder (13) in a sliding mode, a second spring (23) is arranged between one end of the sliding block (21) and the inner wall of the movable groove (20), a sleeve (24) is fixedly arranged at one end of the sliding block (21), a rotary rod (25) is movably connected in a spiral mode in the sleeve (24), and one end of the rotary rod (25) away from the sleeve (24) rotates to penetrate through the orientation cylinder (13) and is fixedly connected with the rotary rod (15) in a coaxial mode.
8. The thread processing apparatus for producing a fastener bolt according to claim 1, wherein the preliminary track inner wall is provided with a receiving groove (26), a stopper rod (27) is rotatably provided in the receiving groove (26), and rotation of the stopper rod (27) is linked with movement of the push block (4).
9. The thread processing device for manufacturing the fastener bolt according to claim 8, wherein a linkage groove (28) is formed in the thread fixing block (2), a third gear (29) coaxially connected with a rotating shaft of the stop lever (27) is rotationally arranged in the linkage groove (28), a second rack (30) is connected with the third gear (29) in a meshed mode, and a third spring (31) is connected between one end of the second rack (30) and the inner wall of the linkage groove (28).
10. The thread processing apparatus for manufacturing a fastener bolt according to claim 9, wherein the second rack (30) is fixedly provided with a projection (32) movably extending into the preliminary track, and a side wall of the push block (4) is provided with a slide groove (33) matching with the projection (32).
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| CN202310653259.5A CN116532595B (en) | 2023-06-05 | 2023-06-05 | Screw thread processing equipment for manufacturing fastener bolt |
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| CN202310653259.5A CN116532595B (en) | 2023-06-05 | 2023-06-05 | Screw thread processing equipment for manufacturing fastener bolt |
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| CN116532595B CN116532595B (en) | 2023-09-26 |
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