CN211866801U - Continuous chasing bar of two-way feed nut - Google Patents

Abstract

The utility model discloses a continuous chasing bar of two-way feed nut, which comprises a frame, double track way feeding mechanism, nut hold-down mechanism and tapping mechanism, two material loading stations have in the frame, processing station and tapping station are treated to two, double track way feeding mechanism's output extends to the material loading station, the frame internal fixation has two slide bars, slidable mounting has two nuts to bear the mechanism on the slide bar, linear driving mechanism drives respectively and bears the mechanism at the material loading station material rather than the nut of homonymy, stopping and stopping in turn at the tapping station waiting to process the station. The utility model discloses degree of automation is the highest, and the during operation can automatic feeding, press from both sides tightly, process and unload, can show and practice thrift the labour cost, through two-way feed, reduces material loading and tapping interval time, can process a plurality of nuts simultaneously to realize continuous tapping, material loading, press from both sides tightly fast with the speed of unloading, production efficiency is high.

Description

Continuous chasing bar of two-way feed nut

Technical Field

The utility model relates to a nut production facility field, especially a continuous chasing bar of two-way feed nut.

Background

The nut tapping machine is a mechanical processing device for processing internal threads, screws or tooth buttons on the inner side surfaces of holes of various through holes or blind holes with various specifications, such as nuts, flange plates and the like, and the function of the machine is like tapping the internal threads by using screw taps.

According to different types of driving power, the nut tapping machine can be divided into a pneumatic tapping machine, an electric tapping machine, a hydraulic tapping machine and the like; according to different types of processed nuts, nut tapping machines can be divided into various types such as hot tapping machine, flange nut tapping machine, round nut tapping machine, hexagonal nut tapping machine, blind nut tapping machine, antitheft nut tapping machine and the like.

Traditional tapping machine carries the nut that is processed to processing department one by one, carries out the material loading along a direction usually during the material loading, and the material loading speed is slow, and behind the nut was fixed to anchor clamps, tapping mechanism attacked the tooth to the nut, and tapping mechanism once can only process a nut, and the more time of tapping process need spending again, in addition, when carrying out the tapping simultaneously to a plurality of nuts, can't realize continuous tapping, or the interval time of continuous tapping is long, influences machining efficiency. Therefore, there is a need to develop a nut tapping apparatus capable of supplying materials in two directions to improve the processing efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem and designing a two-way feed nut continuous tapping device.

The technical scheme of the utility model is that, a two-way feed nut continuous tapping device, including frame, double track way feeding mechanism, nut hold-down mechanism and tapping mechanism, have two material loading stations in the frame, be located two wait to process the station and be located two tapping stations that wait to process the station between two material loading stations, two output ends of double track way feeding mechanism extend to two material loading stations respectively, be fixed with two horizontal slide bars in the frame, slidable mounting has two nut bearing mechanisms that are used for bearing the weight of the nut on the slide bar, every nut bearing mechanism all is in its homonymy material loading station, its homonymy wait to process station and tapping station activity, install two straight line actuating mechanism in the frame; the two linear driving mechanisms respectively drive the nut bearing mechanisms on the same side to move, so that the two nut bearing mechanisms are loaded at the loading stations on the same side and then stop at the positions to be processed on the same side, and stop at the tapping stations alternately; the nut pressing mechanism presses the nut loaded on the nut bearing mechanism stopped at the tapping station, and the tapping mechanism taps the pressed nut at the tapping station.

Preferably, the nut bearing mechanism comprises a nut clamping plate, sliding plates are fixed on two sides of the lower end of the nut clamping plate, the sliding plates are slidably mounted on two sliding rods, a plurality of U-shaped notches for accommodating nuts are formed in the nut clamping plate, the edge of each nut extends out of the U-shaped notch, two limiting guide rails, two first rectangular sleeves and a fixing block are fixed on the lower end face of the nut clamping plate, a bearing plate for bearing the nuts is slidably mounted between the two limiting guide rails, a first pressure spring is mounted between the bearing plate and the fixing block, a limiting block is fixed at one end of each limiting guide rail, which is opposite to the fixing block, the bearing plate is pushed by the first pressure spring to abut against the limiting block, chip discharge ports for discharging tapping waste chips are formed in the bearing plate and below the U-shaped notches, the two first rectangular sleeves are located outside the two limiting guide rails, and guide wheels are mounted between the first rectangular sleeves and the fixing block, first sliders are all slidably clamped in the first rectangular sleeve, a push rod is fixed to one end of each first slider, the other end of each push rod extends out of the first rectangular sleeve and is fixed with a push block, a steel wire is fixed to each push block, and the other end of each steel wire bypasses the guide wheel and is fixedly connected with the bearing plate.

Preferably, the double-track feeding mechanism comprises a vibration disc, a Y-shaped feeding track and two linear feeders, two output ends of the Y-shaped feeding track are in vibration connection with the two linear feeders respectively, an input end of the Y-shaped feeding track is communicated with the vibration disc, two output ends of the Y-shaped feeding track extend to two feeding stations respectively, support frames are fixed to output ends of the Y-shaped feeding track, push-pull electromagnets are installed on the support frames, baffles are installed on push-pull rods of the push-pull electromagnets, and control nuts of the baffles at output ends of the Y-shaped feeding track pass through the baffles.

Preferably, the nut pressing mechanism comprises a support, a first servo cylinder, a second rectangular sleeve, a second sliding block, a second pressure spring and a movable clamping plate, the first servo cylinder is installed on the support, the second sliding block is slidably clamped in the second rectangular sleeve, the second pressure spring is located in the second rectangular sleeve, two ends of the second pressure spring are respectively abutted to the second sliding block and the inner wall of the second rectangular sleeve, one end, back to the second pressure spring, of the second sliding block is fixedly connected with the telescopic end of the first servo cylinder, and the movable clamping plate is arranged at a tapping station and fixedly connected with the second rectangular sleeve.

Preferably, still include shedding mechanism, shedding mechanism includes pulley track, stock guide, connecting rod, kicking block, L type pole, be equipped with the collection room in the frame, pulley track level is fixed in the collection room, the pulley track is perpendicular with the slide bar, stock guide one end slope upwards just is fixed with L type pole, the L type pole other end and activity splint rigid coupling, the pulley is installed to the oblique lower extreme of stock guide, pulley and pulley track roll connection, the stock guide both sides are fixed with the connecting rod, the connecting rod upper end is fixed with the kicking block, kicking block and ejector pad cooperation.

Preferably, fixed guard plates are horizontally fixed on two opposite end faces of the two output ends of the Y-shaped feeding track, the movable clamping plates are located between the fixed guard plates, and the fixed guard plates and the movable clamping plates are matched to guide nuts on the nut bearing mechanism to a tapping station.

Preferably, tapping mechanism includes support column, fixed plate, lifter plate, guide pin bushing, guide pillar, second servo cylinder, rotating electrical machines, tapping chuck, screw tap, the fixed plate passes through the support column to be fixed in the frame, install second servo cylinder and four guide pin bushings on the fixed plate, second servo cylinder output is connected with the lifter plate, the equal slip cartridge has the guide pillar in the guide pin bushing, guide pillar lower extreme and lifter plate rigid coupling, install a plurality of rotating electrical machines on the lifter plate, the quantity of rotating electrical machines is the same with the quantity of tapping station department U type breach, the rotating electrical machines output passes through the tapping chuck and is connected with the screw tap, the screw tap with the chip removal mouth one-to-one in tapping station department.

Preferably, the linear driving mechanism comprises a mounting frame, the mounting frame is fixed on the rack, a third servo cylinder is installed on the mounting frame, and the telescopic end of the third servo cylinder is fixedly connected with the sliding plate on the same side of the telescopic end of the third servo cylinder.

The utility model has the advantages that:

1. the device has the highest degree of automation, can automatically feed, clamp, process and unload materials during working, can simultaneously operate a plurality of devices by one worker, has high production efficiency, and can obviously save labor cost.

2. This device novel in design, rational in infrastructure, simple and convenient easy-to-use, degree of automation are high, convenient to use, through two-way feed, reduce material loading and tapping interval time, realize continuous tapping, machining efficiency is high.

3 and tapping mechanism can process simultaneously a plurality of nuts on the nut bearing mechanism, improve machining efficiency.

4. The nut pressing mechanism and the unloading mechanism adopt the same power source, the first servo cylinder stretches out to realize nut clamping, the first servo cylinder contracts to realize nut unloading, the clamping and unloading speeds are high, and meanwhile, the manufacturing cost is saved.

Drawings

Fig. 1 is a schematic structural view of a bidirectional feeding nut continuous tapping device of the present invention;

fig. 2 is a cross-sectional view of the interior of the housing of the present invention;

FIG. 3 is a top view of the continuous tapping apparatus for bidirectional feeding nuts of the present invention;

FIG. 4 is a first view of the two-way feeding nut tapping device according to the present invention (omitting tapping mechanism);

fig. 5 is a second working state diagram (omitting tapping mechanism) of the bidirectional feeding nut continuous tapping device of the present invention;

fig. 6 is a third working state diagram (omitting tapping mechanism) of the bidirectional feeding nut continuous tapping device of the present invention;

fig. 7 is a side view of the bidirectional feed nut tapping apparatus of the present invention;

fig. 8 is a schematic structural view of the nut bearing mechanism of the present invention;

fig. 9 is a state diagram of the nut bearing mechanism of the present invention during unloading;

fig. 10 is a schematic view of the connection structure between the nut pressing mechanism and the discharging mechanism of the present invention;

fig. 11 is a top view of the discharge mechanism of the present invention;

fig. 12 is a partial schematic view of the dual-rail feeding mechanism of the present invention;

FIG. 13 is an enlarged view of a portion of FIG. 3 at G;

in the figure, 1, a frame; 11. a feeding station; 12. a station to be processed; 13. tapping stations; 14. a slide bar; 2. a double-track feeding mechanism; 21. a vibrating pan; 22. a Y-shaped feeding track; 23. a linear feeder; 24. a support frame; 25. pushing and pulling the electromagnet; 26. a baffle plate; 27. fixing the guard plate; 3. a nut pressing mechanism; 31. a support; 32. a first servo cylinder; 33. a second rectangular sleeve; 34. a second slider; 35. a second pressure spring; 36. a movable splint; 4. a tapping mechanism; 41. a support pillar; 42. a fixing plate; 43. a lifting plate; 44. a guide sleeve; 45. a guide post; 46. a second servo cylinder; 47. a rotating electric machine; 48. tapping chucks; 49. a screw tap; 5. a nut; 6. a nut bearing mechanism; 601. a nut clamp plate; 602. a slide plate; 603. a U-shaped notch; 604. limiting a guide rail; 605. a first rectangular sleeve; 606. a fixed block; 607. a carrier plate; 608. a first pressure spring; 609. a limiting block; 610. a chip removal port; 611. a guide wheel; 612. a first slider; 613. a push rod; 614. a push block; 615. a steel wire; 7. a linear drive mechanism; 71. a mounting frame; 72. a third servo cylinder; 8. a discharge mechanism; 81. a pulley track; 82. a material guide plate; 83. a connecting rod; 84. a top block; 85. an L-shaped rod; 86. a collection chamber; 87. a pulley.

Detailed Description

The utility model is described in detail with reference to the accompanying drawings, as shown in fig. 1-13, a bidirectional feeding nut 5 continuous tapping device comprises a frame 1, a double-track feeding mechanism 2, a nut pressing mechanism 3 and a tapping mechanism 4, wherein the frame 1 is provided with two feeding stations 11, two stations 12 to be processed between the two feeding stations 11 and a tapping station 13 between the two stations 12 to be processed, two output ends of the double-track feeding mechanism 2 extend to the two feeding stations 11 respectively, two horizontally arranged slide bars 14 are fixed in the frame 1, two nut bearing mechanisms 6 for bearing nuts 5 are slidably mounted on the slide bars 14, each nut bearing mechanism 6 is movable on the feeding station 11 on the same side, the stations 12 to be processed and the tapping station 13 on the same side, two linear driving mechanisms 7 are mounted on the frame 1, the two linear driving mechanisms 7 drive the nut bearing mechanisms 6 on the same side to move respectively, the two nut bearing mechanisms 6 are fed at a feeding station 11 on the same side of the nut bearing mechanisms, then are stopped at a station 12 to be processed on the same side of the nut bearing mechanisms, and are alternately stopped at a tapping station 13, the nut pressing mechanism 3 presses the nuts 5 borne on the nut bearing mechanisms 6 stopped at the tapping station 13, and the tapping mechanism 4 taps the nuts 5 pressed at the tapping station 13.

Preferably, the nut bearing mechanism 6 comprises a nut clamping plate 601, sliding plates 602 are fixed on two sides of the lower end of the nut clamping plate 601, the sliding plates 602 are slidably mounted on two sliding rods 14, a plurality of U-shaped notches 603 for accommodating nuts 5 are formed in the nut clamping plate 601, the edge of each nut 5 extends out of the U-shaped notches 603, two limiting guide rails 604, two first rectangular sleeves 605 and a fixing block 606 are fixed on the lower end face of the nut clamping plate 601, a bearing plate 607 for bearing the nut 5 is slidably mounted between the two limiting guide rails 604, a first pressure spring 608 is mounted between the bearing plate 607 and the fixing block 606, a limiting block 609 is fixed at one end of each limiting guide rail 604 facing away from the fixing block 606, the bearing plate 607 is pushed by the first pressure spring 608 to abut against the limiting block 609, a chip discharge port 610 for discharging tapping waste chips is formed in the bearing plate 607 and below the U-shaped notches 603, the two first rectangular sleeves 605 are, a guide wheel 611 is arranged between the first rectangular sleeve 605 and the fixed block 606, a first sliding block 612 is slidably clamped in the first rectangular sleeve 605, a push rod 613 is fixed at one end of the first sliding block 612, the other end of the push rod 613 extends out of the first rectangular sleeve 605 and is fixed with a push block 614, a steel wire 615 is fixed on the push block 614, and the other end of the steel wire 615 bypasses the guide wheel 611 and is fixedly connected with the bearing plate 607.

Preferably, the double-track feeding mechanism 2 includes a vibrating disk 21, a Y-shaped feeding track 22 and two linear feeders 23, two output ends of the Y-shaped feeding track 22 are respectively connected with the two linear feeders 23 in a vibrating manner, an input end of the Y-shaped feeding track 22 is communicated with the vibrating disk 21, two output ends of the Y-shaped feeding track 22 respectively extend to the two feeding stations 11, support frames 24 are fixed to the output ends of the Y-shaped feeding track 22, push-pull electromagnets 25 are installed on the support frames 24, baffle plates 26 are installed on push-pull rods of the push-pull electromagnets 25, and control nuts 5 of the baffle plates 26 at the output ends of the Y-shaped feeding track 22 pass through the baffle plates.

Preferably, the nut pressing mechanism 3 includes a support 31, a first servo cylinder 32, a second rectangular sleeve 33, a second slider 34, a second pressure spring 35 and a movable clamp plate 36, the first servo cylinder 32 is installed on the support 31, the second slider 34 is slidably clamped in the second rectangular sleeve 33, the second pressure spring 35 is located in the second rectangular sleeve 33, two ends of the second pressure spring are respectively abutted to the inner walls of the second slider 34 and the second rectangular sleeve 33, one end of the second slider 34, which is back to the second pressure spring 35, is fixedly connected to the telescopic end of the first servo cylinder 32, and the movable clamp plate 36 is arranged at the tapping station 13 and is fixedly connected to the second rectangular sleeve 33.

Preferably, the automatic material discharging device further comprises a material discharging mechanism 8, wherein the material discharging mechanism 8 comprises a pulley rail 81, a material guiding plate 82, a connecting rod 83, a top block 84 and an L-shaped rod 85, a collecting chamber 86 is arranged in the frame 1, the pulley rail 81 is horizontally fixed in the collecting chamber 86, the pulley rail 81 is perpendicular to the sliding rod 14, one end of the material guiding plate 82 inclines upwards and is fixedly provided with the L-shaped rod 85, the other end of the L-shaped rod 85 is fixedly connected with the movable clamping plate 36, the oblique lower end of the material guiding plate 82 is provided with the pulley 87, the pulley 87 is in rolling connection with the pulley rail 81, the connecting rod 83 is fixed on two sides of the material guiding plate 82, the top block 84 is fixed.

Preferably, fixed guard plates 27 are horizontally fixed on two opposite end faces of the output end of the Y-shaped feeding track 22, the movable clamping plate 36 is located between the fixed guard plates 27, and the fixed guard plates 27 and the movable clamping plate 36 are matched to guide the nuts 5 on the nut bearing mechanism 6 to the tapping station 13.

Preferably, the tapping mechanism 4 includes a supporting column 41, a fixing plate 42, a lifting plate 43, a guide sleeve 44, a guide pillar 45, a second servo cylinder 46, a rotating motor 47, a tapping chuck 48, and a screw tap 49, the fixing plate 42 is fixed on the rack 1 through the supporting column 41, the fixing plate 42 is provided with the second servo cylinder 46 and four guide sleeves 44, an output end of the second servo cylinder 46 is connected with the lifting plate 43, the guide pillars 45 are all slidably inserted in the guide sleeves 44, a lower end of the guide pillar 45 is fixedly connected with the lifting plate 43, the lifting plate 43 is provided with a plurality of rotating motors 47, the number of the rotating motors 47 is the same as the number of the U-shaped notches 603 at the tapping station 13, the output end of each rotating motor 47 is connected with the screw tap 49 through the tapping chuck 48, and the screw taps 49 are in.

Preferably, the linear driving mechanism 7 includes a mounting frame 71, the mounting frame 71 is fixed on the frame 1, a third servo cylinder 72 is installed on the mounting frame 71, and a telescopic end of the third servo cylinder 72 is fixedly connected to the sliding plate 602 on the same side as the telescopic end of the third servo cylinder 72.

The working principle of the embodiment is as follows: the vibrating disk 21 conveys the nuts 5 to the Y-shaped feeding track 22, the linear feeder 23 vibrates the Y-shaped feeding track 22, and as shown in fig. 13, the nuts 5 uniformly move to two output ends of the Y-shaped feeding track 22 at the branch of the Y-shaped feeding track 22 and are blocked by the baffle 26;

initially, as shown in fig. 3, the two nut carriers 6 are farthest apart and located at the same side of the loading station 11; during processing, the two linear driving mechanisms 7 work, the push-pull electromagnets 25 at the two output ends of the Y-shaped feeding rail 22 control the output of the nuts 5, the push-pull electromagnets 25 drive the baffle 26 to ascend, the baffle 26 does not block the nuts 5 in the Y-shaped feeding rail 22, the Y-shaped feeding rail 22 conveys the nuts 5 to the feeding station 11, the nuts 5 directly enter the first U-shaped notch 603 at the innermost side, then the telescopic ends of the two third servo cylinders 72 synchronously move, and the telescopic end of the third servo cylinder 72 repeatedly extends out a small section of displacement for multiple times, so that the nuts 5 enter the U-shaped notches 603 one by one; after the feeding is finished, the push-pull electromagnet 25 drives the baffle 26 to descend, the baffle 26 blocks the nut 5 at the output end of the Y-shaped feeding track 22 to move out, meanwhile, the third servo cylinders 72 extend out to drive the nut bearing mechanism 6 to move to the station 12 to be processed on the same side, one of the third servo cylinders 72 drives the nut bearing mechanism 6 to move to the tapping station 13 again, and the other third servo cylinder 72 is kept still, so that the nut bearing mechanism 6 connected with the other third servo cylinder is stopped at the station 12 to be processed; meanwhile, the fixed guard plate 27 and the movable clamping plate 36 are positioned on the same plane, so that the nut 5 is limited conveniently, and the fixed guard plate 27 and the movable clamping plate 36 limit the nut 5 to move out of the U-shaped notch 603 in the moving process;

then the nut pressing mechanism 3 works to press the nut 5, as shown in fig. 4, the telescopic end of the first servo cylinder 32 extends out to drive the second sliding block 34 to slide in the second rectangular sleeve 33, the second rectangular sleeve 33 and the movable clamping plate 36 approach to the nut 5 at the tapping station 13, because the edge of the nut 5 is positioned outside the U-shaped notch 603, the movable clamping plate 36 will contact with the edge of the nut 5, and then the second sliding block 34 slides in the second rectangular sleeve 33, and the second pressure spring 35 compresses, so that the movable clamping plate 36 keeps a certain pressure to press the nut 5;

then the tapping mechanism 4 works, the tapping mechanism 4 processes a nut 5 loaded on a nut bearing mechanism 6 which is stopped at a tapping station 13, the nut 5 loaded on the nut bearing mechanism 6 is located right below a screw tap 49, a second servo cylinder 46 drives a lifting plate 43 and the screw tap 49 to descend, the lifting plate 43 descends stably and linearly by arranging a guide sleeve 44 and a guide pillar 45, a rotary motor 47 drives the screw tap 49 to rotate through a tapping chuck 48, the screw tap 49 descends and rotates to align with the nut 5 for tapping, waste chips generated by tapping are discharged from a chip discharge port 610 and fall between an L-shaped rod 85 and a material guide plate 82, and after tapping is finished, the lifting plate 43 and the screw tap 49 ascend by driving the second servo cylinder 46;

when the screw tap 49 rises above the nut 5, the nut pressing mechanism 3 no longer presses the nut 5 and drives the discharging mechanism 8 to work, as shown in fig. 5, the telescopic end of the first servo cylinder 32 contracts, the first servo cylinder 32 drives the second slider 34, the rectangular sleeve, the movable clamp plate 36, the L-shaped rod 85 and the material guide plate 82 to move, the pulley 87 rolls on the pulley track 81 to support the material guide plate 82 to move stably, when the oblique upper end of the material guide plate 82 moves to the lower side of the bearing plate 607, the top block 84 contacts with the push block 614 and pushes the push block 614, the push rod 613 drives the first slider 612 to move, the first slider 612 slides in the first rectangular sleeve 605, the push block 614 pulls the bearing plate 607 to move through the steel wire, the bearing plate 607 slides smoothly on the limiting guide rail 604 and gradually moves away from the U-shaped notch 603, the first pressure spring 608 compresses, as the bearing plate 607 gradually moves away from the U-shaped notch 603, the nut 5 is no, since the bearing plate 607 moves away from the opening of the U-shaped notch 603, the nut 5 will not fall from the opening of the U-shaped notch 603 due to the friction of the bearing plate 607, but move toward the inside of the opening of the U-shaped notch 603, so that the nut 5 will fall substantially vertically due to gravity, thereby ensuring that the nut 5 can normally fall to the material guide 82 and slide on the material guide 82 to the collection chamber 86;

then the first servo cylinder 32 drives the movable clamping plate 36 to return to the original position, so that the movable clamping plate 36 is located on the same plane with the fixed guard plate 27 again, and the bearing plate 607 returns to the original position to abut against the limiting block 609 under the action of the elastic force of the second pressure spring 35; and then the linear driving mechanism 7 drives the nut bearing mechanism 6 at the tapping station 13 to return to the feeding station 11, as shown in fig. 6, the other linear driving mechanism 7 drives the nut bearing mechanism 6 at the station 12 to be processed to move to the tapping station 13, the nut bearing mechanism 6 returning to the feeding station 11 to perform feeding again and moves to the station 12 to be processed after feeding to wait for tapping, and thus, the cycle alternation is realized, the tapping interval time is reduced, and the continuous tapping is realized.

Above-mentioned technical scheme has only embodied the utility model discloses technical scheme's preferred technical scheme, some changes that this technical field's technical personnel probably made to some parts wherein have all embodied the utility model discloses a principle belongs to within the protection scope of the utility model.

Claims (8)

1. A bidirectional-feeding nut continuous tapping device comprises a rack (1), a double-rail feeding mechanism (2), a nut pressing mechanism (3) and a tapping mechanism (4), and is characterized in that two feeding stations (11), two to-be-processed stations (12) positioned between the two feeding stations (11) and a tapping station (13) positioned between the two to-be-processed stations (12) are arranged in the rack (1), two output ends of the double-rail feeding mechanism (2) extend to the two feeding stations (11) respectively, two sliding rods (14) horizontally arranged are fixed in the rack (1), two nut bearing mechanisms (6) used for bearing nuts (5) are slidably mounted on the sliding rods (14), each nut bearing mechanism (6) is movable on the feeding station (11) at the same side, the to-be-processed stations (12) at the same side and the tapping station (13), two linear driving mechanisms (7) are mounted on the rack (1); the two linear driving mechanisms (7) respectively drive the nut bearing mechanisms (6) on the same side to move, so that the two nut bearing mechanisms (6) are loaded at the loading station (11) on the same side and then stop at the positions to be processed (12) on the same side, and stop at the tapping station (13) alternately; the nut pressing mechanism (3) presses the nut (5) borne on the nut bearing mechanism (6) which is stopped at the tapping station (13), and the tapping mechanism (4) taps the pressed nut (5) at the tapping station (13).

2. The continuous tapping device for the bidirectional feeding nut as recited in claim 1, wherein the nut bearing mechanism (6) comprises a nut clamping plate (601), sliding plates (602) are fixed on two sides of the lower end of the nut clamping plate (601), the sliding plates (602) are slidably mounted on two sliding rods (14), a plurality of U-shaped notches (603) for accommodating nuts (5) are formed in the nut clamping plate (601), the edge of the nuts (5) extends out of the U-shaped notches (603), two limiting guide rails (604), two first rectangular sleeves (605) and a fixed block (606) are fixed on the lower end face of the nut clamping plate (601), a bearing plate (607) for bearing the nuts (5) is slidably mounted between the two limiting guide rails (604), a first pressure spring (608) is mounted between the bearing plate (607) and the fixed block (606), and a limiting block (609) is fixed at one end of each limiting guide rail (604) opposite to the fixed block (606), the tapping device is characterized in that the first pressure spring (608) pushes the bearing plate (607) to enable the bearing plate to be abutted against a limiting block (609), chip removal ports (610) used for discharging tapping waste chips are formed in the lower portion of the U-shaped notch (603) on the bearing plate (607), the two first rectangular sleeves (605) are located on the outer sides of the two limiting guide rails (604), guide wheels (611) are installed between the first rectangular sleeves (605) and the fixing block (606), first sliding blocks (612) are slidably clamped in the first rectangular sleeves (605), a push rod (613) is fixed to one end of each first sliding block (612), the other end of each push rod (613) extends out of the corresponding first rectangular sleeve (605) and is fixed with a push block (614), a steel wire (615) is fixed to the push block (614), and the other end of each steel wire (615) bypasses the guide wheels (611) and is fixedly connected with the bearing plate (607).

3. The continuous tapping device for bi-directional feed nuts of claim 1, the double-track feeding mechanism (2) comprises a vibrating disk (21), a Y-shaped feeding track (22) and two linear feeders (23), two output ends of the Y-shaped feeding track (22) are respectively connected with two linear feeders (23) in a vibration way, the input end of the Y-shaped feeding track (22) is communicated with the vibrating disc (21), two output ends of the Y-shaped feeding track (22) respectively extend to the two feeding stations (11), the output ends of the Y-shaped feeding rails (22) are respectively fixed with a support frame (24), a push-pull electromagnet (25) is arranged on the supporting frame (24), a baffle plate (26) is arranged on a push-pull rod of the push-pull electromagnet (25), the baffle plate (26) controls the nut (5) to pass through at the output end of the Y-shaped feeding track (22).

4. The continuous tapping device for bi-directional feed nuts of claim 1, the nut pressing mechanism (3) comprises a bracket (31), a first servo cylinder (32), a second rectangular sleeve (33), a second sliding block (34), a second pressure spring (35) and a movable clamping plate (36), a first servo cylinder (32) is arranged on the bracket (31), a second sliding block (34) is clamped in the second rectangular sleeve (33) in a sliding way, the second pressure spring (35) is positioned in the second rectangular sleeve (33), two ends of the second pressure spring are respectively abutted against the second sliding block (34) and the inner wall of the second rectangular sleeve (33), one end of the second sliding block (34) back to the second pressure spring (35) is fixedly connected with the telescopic end of the first servo cylinder (32), the movable clamping plate (36) is arranged at the tapping station (13) and is fixedly connected with the second rectangular sleeve (33).

5. The continuous tapping device with bidirectional feeding for nuts according to claim 1, further comprising a discharging mechanism (8), wherein the discharging mechanism (8) comprises a pulley rail (81), a material guide plate (82), a connecting rod (83), a top block (84), and an L-shaped rod (85), a collecting chamber (86) is arranged in the frame (1), the pulley rail (81) is horizontally fixed in the collecting chamber (86), the pulley rail (81) is perpendicular to the sliding rod (14), one end of the material guide plate (82) is inclined upwards and is fixed with the L-shaped rod (85), the other end of the L-shaped rod (85) is fixedly connected with the movable clamping plate (36), the inclined lower end of the material guide plate (82) is provided with a pulley (87), the pulley (87) is connected with the pulley rail (81) in a rolling manner, the connecting rod (83) is fixed on two sides of the material guide plate (82), the top block (84) is fixed on the upper end of the connecting rod (83), the ejector block (84) is matched with the push block (614).

6. A continuous tapping device with bidirectional feeding for nuts as claimed in claim 3, characterized in that two opposite end faces of the output end of the Y-shaped feeding track (22) are horizontally fixed with fixed guard plates (27), the movable clamping plate (36) is located between the fixed guard plates (27), and the fixed guard plates (27) and the movable clamping plate (36) cooperate to guide the nuts (5) on the nut bearing mechanism (6) to the tapping station (13).

7. The continuous tapping device of claim 1, wherein the tapping mechanism (4) comprises a supporting column (41), a fixing plate (42), a lifting plate (43), a guide sleeve (44), a guide post (45), a second servo cylinder (46), a rotating motor (47), a tapping chuck (48) and a screw tap (49), the fixing plate (42) is fixed on the rack (1) through the supporting column (41), the fixing plate (42) is provided with the second servo cylinder (46) and four guide sleeves (44), the output end of the second servo cylinder (46) is connected with the lifting plate (43), the guide post (45) is inserted in the guide sleeve (44) in a sliding manner, the lower end of the guide post (45) is fixedly connected with the lifting plate (43), the lifting plate (43) is provided with a plurality of rotating motors (47), and the number of the rotating motors (47) is the same as the number of U-shaped notches (603) at the tapping station (13), the output end of the rotating motor (47) is connected with a screw tap (49) through a tapping chuck (48), and the screw tap (49) corresponds to chip removal ports (610) at a tapping station (13) one by one.

8. The continuous tapping device with bidirectional feeding for nuts according to claim 1, characterized in that the linear driving mechanism (7) comprises a mounting frame (71), the mounting frame (71) is fixed on the rack (1), a third servo cylinder (72) is mounted on the mounting frame (71), and the telescopic end of the third servo cylinder (72) is fixedly connected with the sliding plate (602) on the same side of the third servo cylinder.

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