Tapping equipment for high-strength fastener production and machining

Abstract

The invention provides tapping equipment for high-strength fastener production and machining, and relates to the technical field of nut machining, the tapping equipment comprises an equipment rack, a fixed rack is fixedly mounted on the equipment rack, the tapping equipment further comprises a bearing disc, a positioning assembly, a tapping assembly, a rotating rack and a feeding assembly, the bearing disc is fixedly mounted on the equipment rack, and the positioning assembly is fixedly mounted on the bearing disc; the bearing disc comprises a rotary feeding area, a tapping area and a discharging area, the positioning assembly is installed in the tapping area, the tapping assembly is installed on the fixed rack, a screw tap is installed at the working end of the tapping assembly, the rotating rack is rotatably installed in the rotary feeding area, and the feeding assembly is installed on the rotating rack. According to the tapping equipment for producing and machining the high-strength fastener, the technical problems that in the related technology, due to the existence of burrs on the outer portion of a blank or the two ends of a hole and other solid impurities attached to the burrs, centering failure is likely to be caused, the tapping difficulty is increased, and the tapping accuracy is reduced are solved.

Description

Technical Field

[0001] This invention belongs to the field of nut processing technology, specifically, it relates to a tapping device for the production and processing of high-strength fasteners. Background Technology

[0002] Fasteners are a widely used basic mechanical component, including 12 types of parts such as nuts, bolts, and studs. Some people refer to fasteners with existing national standards as standard fasteners, or simply standard parts. In some fields such as construction engineering, automobile manufacturing, and aerospace, where fasteners are required to have higher strength and toughness, be able to withstand greater tensile and shear forces, and not easily break or deform, especially in areas where stability is required under extreme conditions, high-strength fasteners are selected. Nuts and screws are common mechanical connection tools.

[0003] Nuts have internal threaded holes and are generally shaped as flat hexagonal prisms, but can also be flat square or flat cylindrical. They are used to fasten two parts together with bolts, studs, or machine screws, making them a single unit. The working principle of nuts is to use the friction between the nut and the bolt for self-locking. However, the reliability of this self-locking will decrease under dynamic loads. In some important situations, we usually take some anti-loosening measures to ensure the reliability of nut locking.

[0004] When tapping nuts, the higher the strength of the nut, the more difficult it is to tap. This causes the tap to bear greater force during the tapping process, making it even more difficult to tap. At this time, higher requirements are placed on the alignment of the tap and the nut. In the existing technology, high-precision fixtures and machine tools are generally used to achieve alignment. For example, V-blocks, special chucks, and the high positioning accuracy of the machine tool spindle are used to ensure that the workpiece and the tap are theoretically coaxial for alignment. However, this is very sensitive to the shape of the blank itself, the quality of the inner hole, and burrs. That is to say, if there are burrs or other solid impurities attached to the blank or the two ends of the hole, it is easy to cause alignment failure. If inaccurate alignment occurs, it will not only further increase the difficulty of tapping and reduce the accuracy of tapping, but may also cause damage or breakage of the tap. Summary of the Invention

[0005] The purpose of this invention is to provide a tapping device for the production and processing of high-strength fasteners, which solves the technical problem in related technologies that the presence of burrs on the outside of the blank or at both ends of the hole, as well as other solid impurities attached to it, can easily lead to misalignment, thereby increasing the difficulty of tapping and reducing the accuracy of tapping.

[0006] A tapping device for producing and processing high-strength fasteners includes a machine frame, on which a fixed frame is fixedly mounted, and further includes: A support plate is fixedly installed on the equipment frame, and the support plate includes a rotary feeding area, a tapping area and a feeding area; A positioning component is installed in the tapping area to determine the position of the fastener blank entering the tapping area of ​​the bearing plate and to fix the fastener blank. A tapping assembly is mounted on the fixed frame. The working end of the tapping assembly is equipped with a tap for tapping the fastener blank that enters the tapping area of ​​the bearing plate. A rotating frame is rotatably mounted in the rotary feeding area; A feeding assembly, mounted on the rotating frame, is used to feed fastener blanks into the tapping area and move the tapped fastener blanks to the unloading area.

[0007] According to an exemplary embodiment of this disclosure, the positioning component includes: The mounting cylinder is fixedly installed on the tapping area, and a support frame is installed on the top of the mounting cylinder. The support frame has a hole for accommodating the tap. A first driving component is fixedly installed at the bottom of the mounting cylinder. A mounting bracket is fixedly installed at the output end of the first driving component, and a guide cone is rotatably installed on the top of the mounting bracket. The guide cone and the tap are arranged coaxially; A limiting part, which is installed on the equipment frame, is used to cooperate with the guide cone to determine the alignment position of the hole in the fastener blank with the tap; A grinding section is mounted on the guide cone and is used to grind the end of the hole in the fastener blank.

[0008] According to an exemplary embodiment of this disclosure, the limiting portion includes: A limiting cylinder is coaxially disposed at the top of the mounting cylinder, and a positioning frame is installed at the bottom of the limiting cylinder. The positioning frame also has a hole for accommodating the tap. A movable frame is fixedly installed on the limiting cylinder, and the movable frame is slidably engaged with the equipment frame to control the movement of the limiting cylinder along the axial direction; The second driving component is fixedly installed on the equipment frame, and its output end is fixedly connected to the movable frame.

[0009] According to an exemplary embodiment of this disclosure, it further includes: The housing is installed on the side of the equipment frame, and a flow channel is connected between the top of the housing and the mounting cylinder; A filter cartridge is installed inside the housing, and a conveying pipe is provided inside the filter cartridge.

[0010] According to an exemplary embodiment of this disclosure, the polishing section includes: The sliding cavity is formed on the conical surface of the guide cone, and the sliding cavity is composed of an air supply area and sliding areas at both ends of the air supply area; The grinding strips are slidably and sealed inside both sliding areas, and the two grinding strips are arranged symmetrically. A hollow column is coaxially and fixedly installed at the bottom of the guide cone. The hollow column is connected to the air supply area and is rotatably connected to the mounting bracket. A miniature air pump is installed inside the mounting bracket, and the output end of the miniature air pump is connected to the bottom end of the hollow column through a rotary joint; A drive component is installed inside the mounting bracket and is used to drive the guide cone to rotate.

[0011] According to an exemplary embodiment of this disclosure, the driving member includes: A drive motor is installed inside the mounting bracket, and a drive gear is fixedly installed at the output end of the drive motor; The driven gear is coaxially fixedly mounted on the hollow column and meshes with the driving gear.

[0012] According to an exemplary embodiment of this disclosure, the tapping assembly includes: The third driving component is fixedly installed on the fixed frame, and a sliding frame is slidably installed inside the fixed frame. The sliding frame is fixedly connected to the output end of the third driving component. The tapping machine body is mounted on the sliding frame, and the tap is installed at the working end of the tapping machine body.

[0013] According to an exemplary embodiment of this disclosure, a feeding device is included, mounted on the equipment frame, the feeding assembly comprising: The rotating frame has several feeding racks fixedly installed at equal angles in a circular shape, and each feeding rack has a receiving groove inside; The feeding device is equipped with a fourth driving component, which is used to feed the fastener blank to be tapped into the receiving groove. The fifth driving component is fixedly installed on each of the feeding racks, and a push frame is fixedly installed at the output end of the fifth driving component. The push frame is located inside the receiving groove. The second motor is fixedly installed inside the equipment frame, and its output end is fixedly connected to the rotating frame.

[0014] According to an exemplary embodiment of this disclosure, the feeding area is equipped with a conveyor hopper for discharging materials.

[0015] According to an exemplary embodiment of this disclosure, a sixth driving member is also included. The sixth driving member is fixedly mounted on the support plate, and the output end of the sixth driving member points to the tapping area. Two seventh driving members are symmetrically arranged on the tapping area. The two seventh driving members are fixedly mounted on the support plate by mounting brackets. An arc-shaped clamping frame is fixedly mounted on the output end of the seventh driving member.

[0016] Beneficial effects 1. Compared with existing technologies, by integrating a retractable grinding strip on the guide cone coaxial with the tap, the equipment can automatically complete the grinding and cleaning of burrs on the hole end of the nut blank in one clamping, eliminating their interference with the centering accuracy. Then, the clean guide cone is used to complete the final fine centering, improving the accuracy and precision of tapping.

[0017] 2. Compared with the prior art, the guide cone driven by the first driving component is initially positioned from bottom to top, the limiting cylinder and positioning frame driven by the second driving component are pressed together from top to bottom, and the arc-shaped clamping frame driven by two seventh driving components is clamped from the side, which is convenient to resist the large torque generated by high-strength materials during the tapping process, so as to prevent workpiece displacement or vibration, protect the tap and improve the thread quality.

[0018] 3. Compared with existing technologies, the coolant and debris in the processing area are guided into the housing through the flow channel and separated by the filter cartridge. This facilitates the timely removal of waste chips generated during grinding and tapping, keeps key working surfaces such as guide cones clean, extends equipment life, and facilitates the recycling of cutting fluid. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of a tapping device for producing and processing high-strength fasteners, provided in an embodiment of the present invention. Figure 2 This is an embodiment of the present invention. Figure 1 A schematic diagram of the overall cross-sectional structure; Figure 3 This is an embodiment of the present invention. Figure 1 A schematic diagram of the overall cross-sectional structure from another angle; Figure 4 This is an embodiment of the present invention. Figure 1 A cross-sectional view of the positioning component; Figure 5 This is an embodiment of the present invention. Figure 1 A cross-sectional structural diagram of the middle limiting part; Figure 6 This is an embodiment of the present invention. Figure 1 A cross-sectional view of the grinding section; Figure 7 This is an embodiment of the present invention. Figure 1 A cross-sectional view of the structure of the guide cone, sliding cavity, and hollow column in combination; Figure 8 This is an embodiment of the present invention. Figure 1 A cross-sectional view of the loading and unloading assembly.

[0021] In the diagram: 1. Equipment frame; 2. Fixed frame; 3. Bearing plate; 4. Tap; 5. Rotating frame; 6. Mounting cylinder; 7. Bearing frame; 8. First driving component; 9. Mounting frame; 10. Guide cone; 11. Limiting cylinder; 12. Positioning frame; 13. Moving frame; 14. Second driving component; 15. Housing; 16. Guide channel; 17. Filter cartridge; 18. Conveying pipe; 19. Sliding cavity; 20. Grinding strip; 21. Hollow column; 22. Miniature air pump 23. Rotary joint; 24. Drive motor; 25. Drive gear; 26. Driven gear; 27. Third drive component; 28. Sliding frame; 29. ​​Tapping machine body; 30. Feeding equipment; 31. Feeding rack; 32. Receiving trough; 33. Fourth drive component; 34. Fifth drive component; 35. Push frame; 36. Conveying bucket; 37. Sixth drive component; 38. Seventh drive component; 39. Mounting bracket; 40. Arc-shaped clamping frame; 41. Second motor. Detailed Implementation

[0022] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure. For ease of understanding, the English abbreviations and related technical terms involved in the embodiments of this disclosure will be explained and described below.

[0023] It should be understood that the described embodiments are merely some, not all, of the embodiments disclosed herein. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure.

[0024] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The singular forms “a,” “the,” and “the” as used in the embodiments of this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0025] It should be understood that the term "and / or" used in this article is merely a way of describing the logical relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0026] Depending on the context, the word "if" as used here can be interpreted as "when" or "when" or "in response to determination" or "in response to detection." Similarly, depending on the context, the phrase "if determination" or "if detection (of the stated condition or event)" can be interpreted as "when determination" or "in response to determination" or "when detection (of the stated condition or event)" or "in response to detection (of the stated condition or event)."

[0027] It should be understood that the terms "first," "second," etc., used in this disclosure are for distinguishing purposes only and should not be construed as indicating or implying relative importance or order.

[0028] In the description of this disclosure, the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and should not be construed as a limitation of this disclosure.

[0029] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "joining" should be interpreted broadly, for example, they can be fixed connections, detachable connections, mating connections or integral connections; those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0030] like Figures 1 to 8As shown, this invention illustrates a tapping device for producing high-strength fasteners according to an embodiment of the present invention. The device includes a frame 1, on which a fixed frame 2 is fixedly mounted. It also includes a support plate 3, a positioning component, a tapping component, a rotating frame 5, and a feeding component. The support plate 3 is fixedly mounted on the frame 1 and includes a rotary feeding area, a tapping area, and a feeding area. The positioning component is installed in the tapping area to determine the position of the fastener blank entering the tapping area of ​​the support plate 3 and to fix the fastener blank. The positioning component includes a mounting cylinder 6, a first driving component 8, a limiting part, and a grinding part. The mounting cylinder 6 is fixed... The mounting cylinder 6 is fixedly installed on the tapping area. A support frame 7 is installed on the top of the mounting cylinder 6. The support frame 7 has a hole for accommodating the tap 4. The top of the mounting cylinder 6 is flush with the tapping area. The first drive member 8 is fixedly installed on the bottom of the mounting cylinder 6. A mounting frame 9 is fixedly installed on the output end of the first drive member 8. A guide cone 10 is rotatably installed on the top of the mounting frame 9. The guide cone 10 is coaxially arranged with the tap 4. A limiting part is installed on the equipment frame 1 to cooperate with the guide cone 10 to determine the centering position of the hole of the fastener blank and the tap 4. A grinding part is installed on the guide cone 10 to grind the end of the hole of the fastener blank.

[0031] Specifically, when tapping the nut blanks, the feeding assembly first feeds several nut blanks sequentially into the tapping area of ​​the bearing plate 3. The nut blanks entering the tapping area are located on the bearing frame 7 above the mounting cylinder 6. The hole on the bearing frame 7 is larger than the hole on the nut blank. At this time, it is necessary to adjust the alignment of the hole on the nut blank. Then, the first drive component 8 is activated. The first drive component 8 pushes the guide cone 10 upward through the mounting frame 9. Thus, the guide operation is performed by the cooperation between the conical surface of the guide cone 10 and the hole of the nut blank. At the same time, the limiting part moves synchronously and gently contacts the upper end of the nut blank to limit the movement of the nut blank in the height direction.

[0032] After the initial adjustment of the nut blank's position, in order to reduce the impact of burrs or debris at the end of the nut blank on the guiding cone 10's guiding action, which could lead to a certain deviation between the hole on the nut blank and the centering position, the first drive member 8 is activated first, temporarily disengaging the guide cone 10 from the hole in the nut blank. Then, the grinding unit is activated, and the first drive member 8 is restarted to push the guide cone 10 to the bottom of the hole in the nut blank until the grinding unit contacts the hole in the nut blank. The grinding unit can then clean away the burrs or other adhering impurities at the bottom of the hole in the nut blank, thereby improving the stability of the centering.

[0033] After cleaning away the burrs or other adhering impurities at the bottom of the hole in the nut blank, the grinding section can be retracted. The first drive member 8 then pushes the guide cone 10 to align with the hole in the nut blank. Under the action of the guide cone 10, the hole in the nut blank is aligned. Then, the limiting part is opened to firmly press the upper end of the nut blank, thereby restricting its movement in the height direction and fixing the nut blank. Then, the tapping assembly is opened, and the tap 4 rotates and moves downward until the tapping of the hole in the nut blank is completed. During this process, the holes on the support frame 7 and the positioning frame 12 can both accommodate the tap 4 to pass through, and both the support frame 7 and the positioning frame 12 can be replaced according to the size of the nut blank to be processed.

[0034] The limiting part includes a limiting cylinder 11, a movable frame 13, and a second driving component 14. The limiting cylinder 11 is coaxially disposed on the top of the mounting cylinder 6, and a positioning frame 12 is installed at the bottom of the limiting cylinder 11. The positioning frame 12 also has a hole for accommodating the tap 4. The movable frame 13 is fixedly installed on the limiting cylinder 11 and slides with the equipment frame 1 to control the movement of the limiting cylinder 11 along the axial direction. The second driving component 14 is fixedly installed on the equipment frame 1, and the output end of the second driving component 14 is fixedly connected to the movable frame 13. It also includes a housing 15 and a filter cylinder 17. The housing 15 is installed on the side of the equipment frame 1, and a guide channel 16 is connected between the top of the housing 15 and the mounting cylinder 6. The filter cylinder 17 is installed inside the housing 15, and a conveying pipe 18 is provided inside the filter cylinder 17.

[0035] Specifically, when adjusting the centering position of the nut blank entering the tapping area, in order to restrict the movement of the nut blank in the height direction, the second drive component 14 is activated. The second drive component 14 pushes the moving frame 13 to move, and the moving frame 13 pushes the limiting cylinder 11 to move until the positioning frame 12 at the bottom of the limiting cylinder 11 contacts the nut blank. At this time, the positioning frame 12 makes light contact with the upper end of the nut blank, which does not affect the position adjustment of the nut blank. When tapping is required, the second drive component 14 increases the pressure between the positioning frame 12 and the nut blank, thereby facilitating the fixation of the nut blank's position during the tapping process.

[0036] Furthermore, during the tapping process, in order to reduce the temperature of the nut blank and assist in the discharge of cuttings, it is also necessary to spray cutting fluid. The housing 15 is used to store cutting fluid. When it is necessary to spray cutting fluid, the input end of the spraying equipment is connected to the delivery pipe 18. The cutting fluid in the housing 15 is drawn to the tapping position through the delivery pipe 18. The filter cartridge 17 is used to prevent cuttings from entering the spraying equipment. The sprayed cutting fluid carries away the heat generated during tapping and carries away chips and other impurities in sequence through the mounting cylinder 6 and the guide channel 16 back into the housing 15.

[0037] The grinding section includes a sliding cavity 19, grinding strips 20, a hollow column 21, a micro air pump 22, and a drive component. The sliding cavity 19 is formed on the conical surface of the guide cone 10. The sliding cavity 19 consists of an air supply area and sliding areas at both ends of the air supply area. Grinding strips 20 are slidably and sealed inside both sliding areas. The two grinding strips 20 are arranged symmetrically. The hollow column 21 is coaxially fixedly installed at the bottom of the guide cone 10. The hollow column 21 is connected to the air supply area and is rotatably connected to the mounting frame 9. The micro air pump 22 is installed inside the mounting frame 9. The output end of the micro air pump 22 is connected to the bottom end of the hollow column 21 through a rotary joint 23. The drive component is installed inside the mounting frame 9 and is used to drive the guide cone 10 to rotate.

[0038] Specifically, after initially adjusting the position of the nut blank, in order to reduce the impact of impurities such as burrs or debris at the end of the nut blank on the guiding of the guide cone 10, the first drive component 8 is activated first, so that the guide cone 10 is temporarily disengaged from the hole of the nut blank. Then, the micro air pump 22 is activated. The micro air pump 22 supplies air to the air supply area through the rotary joint 23 and the hollow column 21. By increasing the air pressure inside the sliding cavity 19, the two grinding strips 20 are driven to move out of the corresponding sliding area until the two symmetrically arranged grinding strips 20 move to the designated position. Then, the first drive component 8 is activated again to push the guide cone 10 to the bottom of the hole of the nut blank. At this time, the guide cone 10 is not in contact with the bottom of the hole of the nut blank, but the grinding strips 20 are in contact with the bottom of the hole of the nut blank. The drive component is then activated to drive the hollow column 21 to rotate, thereby driving the guide cone 10 to rotate, and thus driving the grinding strips 20 to grind the bottom of the hole of the nut blank.

[0039] It should be added that if there are no attached solid impurities or burrs at the bottom of the hole in the nut blank, then the alignment operation is already completed when initially adjusting the position of the nut blank. This additional step will not cause excessive wear on the bottom of the hole in the nut blank and will not affect the tapping process. If there are attached solid impurities or burrs at the bottom of the hole in the nut blank, then the position of the nut blank is not aligned. When grinding the bottom of the hole in the nut blank with the grinding strip 20, since the two sliding areas of the sliding cavity 19 are connected through the air supply area, the two grinding strips 20 can slide to a certain extent in the corresponding sliding areas during the grinding process, so as to adapt to the misaligned hole in the nut blank, until the grinding is completed.

[0040] It should be noted that the roughness of the grinding strip 20 is not high. When grinding solid impurities or burrs, it will not excessively wear down the end of the hole in the nut blank, thereby improving the accuracy of the nut blank alignment after grinding.

[0041] The driving component includes a driving motor 24 and a driven gear 26. The driving motor 24 is installed inside the mounting bracket 9. The output end of the driving motor 24 is fixedly installed with a driving gear 25. The driven gear 26 is coaxially fixedly mounted on the hollow column 21 and meshes with the driving gear 25.

[0042] Specifically, when the hollow column 21 is driven to rotate, the drive motor 24 is turned on. The drive motor 24 drives the hollow column 21 to rotate through the cooperation of the drive gear 25 and the driven gear 26. After the drive motor 24 is turned off and locked, the position of the guide cone 10 can be fixed.

[0043] A tapping assembly is installed on the fixed frame 2. A tap 4 is installed at the working end of the tapping assembly for tapping the fastener blanks that enter the tapping area of ​​the bearing plate 3. The tapping assembly includes a third drive component 27 and a tapping machine body 29. The third drive component 27 is fixedly installed on the fixed frame 2. A sliding frame 28 is slidably installed inside the fixed frame 2. The sliding frame 28 is fixedly connected to the output end of the third drive component 27. The tapping machine body 29 is installed on the sliding frame 28. A tap 4 is installed at the working end of the tapping machine body 29.

[0044] Specifically, after the nut blank is fixed, when tapping is required, the tapping machine body 29 is turned on to drive the tap 4 to rotate, and then the third drive component 27 is turned on to push the sliding frame 28 to move until the tap 4 taps the hole of the nut blank.

[0045] A rotating frame 5 is rotatably mounted in the rotary feeding area. A feeding assembly is mounted on the rotating frame 5 to feed fastener blanks into the tapping area and move tapped fastener blanks to the unloading area. This includes a feeding device 30 mounted on the equipment frame 1. The feeding assembly includes a feeding rack 31, a fifth drive component 34, and a second motor 41. Several feeding racks 31 are fixedly mounted at equal angles in a circular shape on the rotating frame 5. Each feeding rack 31 has a receiving groove 32 inside. A fourth drive component 33 is mounted on the feeding device 30 to feed the fastener blanks to be tapped into the receiving grooves 32. A fifth drive component 34 is fixedly mounted on each feeding rack 31. The output end of the fifth drive unit 34 is fixedly mounted with a pusher frame 35, which is located inside the receiving groove 32. The second motor 41 is fixedly mounted inside the equipment frame 1, and the output end of the second motor 41 is fixedly connected to the rotating frame 5. The feeding area is equipped with a conveyor hopper 36 for discharging materials. It also includes a sixth drive unit 37, which is fixedly mounted on the bearing plate 3. The output end of the sixth drive unit 37 points to the tapping area. Two seventh drive units 38 are symmetrically arranged on the tapping area. The two seventh drive units 38 are fixedly mounted on the bearing plate 3 by mounting brackets 39. The output end of the seventh drive unit 38 is fixedly mounted with an arc-shaped clamping frame 40.

[0046] Specifically, when conveying nut blanks, several nut blanks are sequentially fed into the feeding position through the feeding device 30. At this time, the fourth drive unit 33 is activated to push the nut blanks in the feeding position into the receiving groove 32 inside the corresponding feeding rack 31. The second motor 41 is activated to drive the rotating frame 5 to rotate inside the bearing plate 3 until the next feeding rack 31 moves to the feeding position. The above steps can be repeated to push the nut blanks in the feeding position into the receiving groove 32 inside the corresponding feeding rack 31.

[0047] As the rotating frame 5 rotates intermittently until the nut blank is moved to the tapping area, the fifth drive unit 34 at the corresponding position can be activated. The fifth drive unit 34, through the setting of the push frame 35, pushes the nut blank inside the receiving groove 32 into the tapping area, placing it on the upper part of the support frame 7. After the height position of the nut blank is limited by the positioning frame 12, the seventh drive unit 38 is activated. The seventh drive unit 38 pushes the arc-shaped clamping frame 40 to move, thereby fixing the position of the nut blank with the cooperation of the positioning frame 12, and the tapping operation can begin.

[0048] After the tapping operation is completed, the seventh drive unit 38 and the second drive unit 14 are retracted. Then, the sixth drive unit 37 is activated to push the tapped nut into the receiving groove 32 in the corresponding position of the loading rack 31. As the rotating frame 5 rotates, the tapped nut moves to the unloading area. Then, the fifth drive unit 34 is activated. The fifth drive unit 34 pushes the tapped nut in the receiving groove 32 into the unloading area through the setting of the push frame 35. The nut that enters the unloading area is discharged through the conveyor hopper 36 and collected.

[0049] The working principle or usage process of this invention is as follows: When tapping the nut blank, it needs to be fed to the tapping position first. At this time, several nut blanks are fed into the feeding position in sequence through the feeding device 30. Then, the fourth drive 33 is activated to push the nut blank in the feeding position into the receiving groove 32 inside the corresponding feeding frame 31. The second motor 41 is activated to drive the rotating frame 5 to rotate intermittently inside the bearing plate 3 until the nut blank is moved to the tapping area. At this time, the fifth drive 34 in the corresponding position can be activated. The fifth drive 34 pushes the nut blank in the receiving groove 32 into the tapping area through the setting of the push frame 35, so that it is on the upper part of the bearing frame 7.

[0050] At this point, it is necessary to adjust the alignment of the holes on the nut blank. Activate the first drive unit 8, which pushes the guide cone 10 upward through the mounting bracket 9. This guides the nut blank by engaging the conical surface of the guide cone 10 with the holes. Simultaneously, activate the second drive unit 14, which pushes the moving bracket 13 to move. The moving bracket 13 then pushes the limiting cylinder 11 to move until the positioning bracket 12 at the bottom of the limiting cylinder 11 contacts the nut blank. At this point, the positioning bracket 12 lightly contacts the upper end of the nut blank, without affecting the adjustment of the nut blank's position.

[0051] After initially adjusting the position of the nut blank, to reduce the impact of burrs or debris at the end of the nut blank on the guiding cone 10, which could lead to a deviation between the hole on the nut blank and the centering position, the first drive component 8 is activated to temporarily disengage the guide cone 10 from the hole in the nut blank. Then, the micro air pump 22 is activated. The micro air pump 22, through the rotary joint 23 and the hollow column 21, supplies air to the air supply area. The increased air pressure inside the sliding cavity 19 drives the two grinding strips 20 to move out of their corresponding sliding areas until the two symmetrically arranged grinding strips 20 reach their designated positions. Then, the process is repeated... The first driving component 8 is activated, pushing the guide cone 10 to the bottom of the hole in the nut blank. At this time, the guide cone 10 is not in contact with the bottom of the hole in the nut blank, while the grinding strip 20 is in contact with the bottom of the hole in the nut blank. Then, the drive motor 24 is turned on. The drive motor 24 drives the hollow column 21 to rotate through the cooperation of the drive gear 25 and the driven gear 26, thereby driving the guide cone 10 to rotate. This drives the grinding strip 20 to grind the bottom of the hole in the nut blank. After grinding, the drive motor 24 is turned off and locked to fix the position of the guide cone 10, thereby cleaning the burrs or other adhering impurities at the bottom of the hole in the nut blank and improving the stability of the alignment.

[0052] At this point, the first driving component 8 pushes the guide cone 10 to align with the hole in the nut blank. Under the action of the guide cone 10, the centering of the hole in the nut blank is completed. Then, the first driving component 8 is retracted, causing the guide cone 10 to leave the nut blank. Then, the second driving component 14 is adjusted to increase the pressure between the positioning frame 12 and the nut blank, thereby facilitating the fixing of the nut blank's position during the tapping process. At the same time, the seventh driving component 38 is activated, and the seventh driving component 38 pushes the arc-shaped clamping frame 40 to move, thereby fixing the position of the nut blank with the cooperation of the positioning frame 12, and the tapping operation can then begin.

[0053] When tapping, turn on the tapping machine body 29 to drive the tap 4 to rotate, and then turn on the third drive component 27 to push the sliding frame 28 to move until the tap 4 taps the hole of the nut blank.

[0054] After the tapping operation is completed, the seventh drive unit 38 and the second drive unit 14 are retracted. Then, the sixth drive unit 37 is activated to push the tapped nut into the receiving groove 32 in the corresponding position of the loading rack 31. As the rotating frame 5 rotates, the tapped nut moves to the unloading area. Then, the fifth drive unit 34 is activated. The fifth drive unit 34 pushes the tapped nut in the receiving groove 32 into the unloading area through the setting of the push frame 35. The nut that enters the unloading area is discharged through the conveyor hopper 36 and collected.

[0055] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A tapping device for high-strength fastener production and processing, comprising a device rack (1), a fixed rack (2) is fixedly installed on the device rack (1), characterized in that, Also include: Bearing disc (3), the bearing disc (3) is fixedly installed on the equipment rack (1), the bearing disc (3) includes rotary feeding area, tapping area and blanking area; Positioning assembly, the positioning assembly is installed in the tapping area, for determining the position of fastener blank entering the tapping area of bearing disc (3) and fixing fastener blank; Tapping assembly, the tapping assembly is installed on the fixed rack (2), the working end of the tapping assembly is installed with tap (4), for tapping the fastener blank entering the tapping area of bearing disc (3); Rotary rack (5), the rotary rack (5) is rotatably installed in the rotary feeding area; Feeding assembly, the feeding assembly is installed on the rotary rack (5), for feeding fastener blank into the tapping area, and moving the fastener blank after tapping to the blanking area.

2. The tapping device for high-strength fastener production and processing according to claim 1, characterized in that, The positioning assembly includes: Mounting cylinder (6), the mounting cylinder (6) is fixedly installed on the tapping area, the top of mounting cylinder (6) is installed with bearing frame (7), the bearing frame (7) is provided with hole for accommodating tap (4); First driving member (8), the first driving member (8) is fixedly installed on the bottom of mounting cylinder (6), the output end of first driving member (8) is fixedly installed with mounting frame (9), the top of mounting frame (9) is rotatably installed with guide cone (10); The guide cone (10) is coaxially arranged with the tap (4); Limiting portion, the limiting portion is installed on the equipment rack (1), for cooperating with the guide cone (10) to determine the centering position of the hole of fastener blank and the tap (4); Polishing portion, the polishing portion is installed on the guide cone (10), for polishing the hole end of fastener blank.

3. The tapping device for high-strength fastener production and processing according to claim 2, characterized in that, The limiting portion includes: Limiting cylinder (11), the limiting cylinder (11) is coaxially arranged on the top of mounting cylinder (6), the bottom of limiting cylinder (11) is installed with positioning frame (12), the positioning frame (12) is also provided with hole for accommodating tap (4); Moving frame (13), the moving frame (13) is fixedly installed on the limiting cylinder (11), the moving frame (13) is slidingly matched with the equipment rack (1), for controlling the movement of limiting cylinder (11) along the axial direction; Second driving member (14), the second driving member (14) is fixedly installed on the equipment rack (1), the output end of second driving member (14) is fixedly connected with the moving frame (13).

4. The tapping device for high-strength fastener production and processing according to claim 3, characterized in that, Also include: Box (15), the box (15) is installed on the side of equipment rack (1), the top of box (15) is communicated with the mounting cylinder (6) through flow guide channel (16); Filter cylinder (17), the filter cylinder (17) is installed in the box (15), the filter cylinder (17) is provided with conveying pipe (18) inside.

5. The tapping device for high-strength fastener production and processing according to claim 4, characterized in that, The polishing portion includes: Slip cavity (19), the conical surface of guide cone (10) is provided with slip cavity (19), the slip cavity (19) is composed of gas supply area and slip area at both ends of gas supply area. Polishing strip (20), two sliding and sealingly arranged with the polishing strip (20) inside the sliding zone, two polishing strips (20) are symmetrically arranged; Hollow column (21), the hollow column (21) is coaxially fixedly installed at the bottom of the guide cone (10), the hollow column (21) is communicated with the gas supply area, the hollow column (21) is rotatably connected with the mounting bracket (9); Mini air pump (22), the micro air pump (22) is installed inside the mounting bracket (9), the output end of the micro air pump (22) is communicated with the bottom end of the hollow column (21) through a rotary joint (23); Driving member, the driving member is installed inside the mounting bracket (9), for driving the guide cone (10) to rotate.

6. The tapping device for high-strength fastener production and processing according to claim 5, characterized in that, The driving member comprises: Driving motor (24), the driving motor (24) is installed inside the mounting bracket (9), the output end of the driving motor (24) is fixedly installed with driving gear (25); Driven gear (26), the driven gear (26) is coaxially fixedly sleeved on the hollow column (21), the driven gear (26) is engaged with the driving gear (25).

7. The tapping apparatus for high-strength fastener production and processing according to claim 1, characterized in that, The tapping assembly comprises: Third driving element (27), the third driving element (27) is fixedly installed on the fixed rack (2), the fixed rack (2) is slidably installed with a sliding frame (28), the sliding frame (28) is fixedly connected with the output end of the third driving element (27); Tapping machine body (29), the tapping machine body (29) is installed on the sliding frame (28), the working end of the tapping machine body (29) is installed with the tap (4).

8. The tapping equipment for high-strength fastener production and processing according to claim 1, comprising a feeding equipment (30) installed on the equipment rack (1), characterized in that, The feeding assembly comprises: Feeding frame (31), a plurality of feeding frames (31) are fixedly installed on the rotating rack (5) in a circular manner, the feeding frame (31) is provided with a containing groove (32) inside; Wherein, the fourth driving element (33) is installed on the feeding device (30), for feeding the fastener blank to be tapped into the containing groove (32); Fifth driving element (34), the fifth driving element (34) is fixedly installed on each feeding frame (31), the output end of the fifth driving element (34) is fixedly installed with a push frame (35), the push frame (35) is located inside the containing groove (32); Second motor (41), the second motor (41) is fixedly installed inside the equipment rack (1), the output end of the second motor (41) is fixedly connected with the rotating rack (5).

9. The tapping apparatus for high-strength fastener production and processing according to claim 8, characterized in that, The discharging area is provided with a conveying hopper (36) for discharging materials.

10. The tapping apparatus for producing high-strength fasteners according to claim 9, wherein It also comprises a sixth driving element (37), the sixth driving element (37) is fixedly installed on the bearing disc (3), the output end of the sixth driving element (37) points to the tapping area, two seventh driving elements (38) are symmetrically arranged on the tapping area, two seventh driving elements (38) are fixedly installed on the bearing disc (3) through mounting supports (39) respectively, the output end of the seventh driving element (38) is fixedly installed with an arc-shaped clamping frame (40).

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