CN113894367A

CN113894367A - Hexagonal slotted nut tapping vibration feeding device

Info

Publication number: CN113894367A
Application number: CN202111241085.9A
Authority: CN
Inventors: 杨以帖; 林晓贴; 诸晓静
Original assignee: Wenzhou Xieda Hardware Technology Co ltd
Current assignee: Wenzhou Xieda Hardware Technology Co ltd
Priority date: 2021-10-25
Filing date: 2021-10-25
Publication date: 2022-01-07

Abstract

The invention relates to the technical field of nut tapping, in particular to a hexagonal slotted nut tapping vibration feeding device which comprises a sequencing system; the screening system is used for receiving the workpieces conveyed by the sorting system and is arranged on one side of the sorting system; the tapping system comprises a rack, and a tapping station, a blanking station and a feeding station positioned at the lower part of one end of the screening system are arranged on the rack; the transfer system is used for transferring the workpiece of the loading station to the tapping station for tapping and transferring the workpiece of which the tapping station finishes tapping to the blanking station and is arranged on the rack; the positioning system is used for positioning a workpiece to be tapped and is arranged beside the tapping station; the hexagonal slotted nut tapping vibration feeding device disclosed by the invention realizes the automation process of the whole processes of sequencing, screening, loading, tapping, blanking and the like of workpieces, and improves the full-automatic tapping efficiency and tapping quality of the hexagonal slotted nut tapping.

Description

Hexagonal slotted nut tapping vibration feeding device

Technical Field

The invention relates to the technical field of nut tapping, in particular to a hexagonal slotted nut tapping vibration feeding device.

Background

The nut is a part for tightly connecting mechanical equipment, the nut and the bolt can be connected together only by the same specification through the inner side thread, the nut is divided into carbon steel, stainless steel, nonferrous metal (such as copper) and the like, and the nut has the characteristics of convenient installation, convenient disassembly, repeated use and the like, wherein the nut tapping is an important ring for nut processing, and the nut tapping is mainly used for screwing the screw tap into a bottom hole to be drilled by utilizing certain torque to process an internal thread.

The screw nut batch tapping device and the tapping method disclosed in China patent application No. 202010986418X and published as 2020-12-18 comprise a mounting plate, a sliding fixing mechanism and a feeding tapping mechanism, wherein the sliding fixing mechanism is mounted on the lower end face of the mounting plate, and the feeding tapping mechanism is mounted on the upper end face of the mounting plate.

For the hexagonal slotted nut with the special thread at one end, six sides of the side face of the hexagonal slotted nut are planes, no convex part exists, the nut can only be placed according to one direction for tapping, if the nut is placed reversely, the tapping of the end with the special thread of the hexagonal slotted nut is reversed, so that the nut cannot be installed.

In addition, among this technical scheme, the limit to the nut side is carried out the centre gripping location to the location of nut to there is the inaccurate problem of location of certain degree.

Disclosure of Invention

The invention aims to overcome part of defects in the prior art, and provides a hexagonal slotted nut tapping vibration feeding device which realizes the full-automatic tapping process of a workpiece to be tapped, namely a hexagonal slotted nut, through the mutual matching work of a sequencing system, a screening system, a tapping system, a transfer system and a positioning system, completes the whole processes of sequencing, aligning, screening, positioning, tapping, blanking and the like of the workpiece, and has high automation degree and high production efficiency.

In order to achieve the partial purposes, the invention provides the following technical scheme: a hexagonal slotted nut tapping vibratory feed device, comprising:

a sorting system;

the screening system is used for receiving the workpieces conveyed by the sorting system and is arranged on one side of the sorting system;

the tapping system comprises a rack, and a tapping station, a blanking station and a feeding station positioned at the lower part of one end of the screening system are arranged on the rack;

the transfer system is used for transferring the workpiece of the loading station to the tapping station for tapping and transferring the workpiece of which the tapping station finishes tapping to the blanking station and is arranged on the rack;

and the positioning system is used for positioning the workpiece to be tapped and is arranged beside the tapping station.

Further, the screening system comprises:

the conveying track with one end connected with the sequencing system is arranged above the feeding station; the conveying track is provided with a straightening area for straightening the workpieces, a screening area for screening the straightened workpieces and a blanking area for blanking the screened and reserved workpieces to a feeding station.

Further, the rectification area comprises:

the first track changing area is narrowed from width, and the minimum width of the first track changing area is between the maximum width and the minimum width of the workpiece;

the straightening column is located at the edge of the wider side of the first track change area.

Further, the screening zone includes:

the bottom of a conveying track of the second track changing area is provided with a vertical plate for supporting a workpiece, the width of the vertical plate is smaller than the width of a groove of the workpiece, and the vertical plate is parallel to the side wall of the conveying track; a notch is formed in one side wall of the second track changing area of the conveying track;

the riser includes:

the flat section is flush with the bottom of the first track changing area;

and one end of the arc-shaped section is connected with the flat section, the arc-shaped section protrudes upwards, and the other end of the arc-shaped section, which is not connected with the flat section, is connected with and leveled with the bottom of the conveying track in the blanking area.

And the screening assembly is used for pushing the workpiece with the upward slotted end to reject the workpiece and is arranged above the flat section.

Further, the blanking area includes:

the first through hole with the cross section shape matched with the maximum cross section shape of the workpiece is arranged in a blanking area of the conveying track;

the sleeve, a sleeve set up in the lower extreme of a through-hole, and the internal diameter of a sleeve is the same with the internal diameter of a through-hole.

Further, the transfer system includes:

the annular plate is used for supporting the workpiece in the first sleeve, passes through the feeding station, the tapping station and the discharging station and is arranged at the upper part of the rack;

a second sleeve which is arranged at the lower end of the annular plate and penetrates through the annular plate to be flush with the upper surface of the annular plate,

at least three sleeves are arranged, and correspond to the feeding station, the tapping station and the discharging station respectively;

and the driving assembly is used for driving the annular plate to rotate and is arranged on the rack, and the driving assembly is connected with the annular plate.

Further, the tapping station is provided with a tapping machine; the tapping machine includes:

the lower end of the tapping cutter is provided with a ball head;

the driving piece is used for driving the tapping cutter to rotate and is connected with the tapping cutter;

the moving piece is used for driving the tapping cutter to move up and down and is connected with the driving piece;

the rack at the tapping station is provided with a third through hole, the aperture of the third through hole is larger than the diameter of the tapping cutter and smaller than the maximum width of the bottom of the workpiece, and the third through hole is coaxial with the tapping cutter.

The tapping cutter overcoat is equipped with the spring, the spring is connected with the moving member bottom.

Further, the positioning system comprises:

the first piston cylinder is arranged beside the tapping station on the rack;

one end of the first piston rod is vertically connected with the moving piece through a connecting piece and is arranged in the first piston cylinder in a matching manner;

the second piston cylinder is located right below the third through hole of the tapping station;

one end of the second piston rod is arranged in the second piston cylinder in a matching manner, a ball groove matched with the ball head is formed in the top end of the second piston rod, and the diameter of the second piston rod is matched with the inner diameter of the workpiece;

the water inlet pipe is communicated with the bottom of the first piston cylinder, and a first check valve used for unidirectionally feeding water to the first piston cylinder is arranged on the water inlet pipe;

the conveying pipe is communicated with the bottom ends of the first piston cylinder and the second piston cylinder, and a second check valve which is communicated with the second piston cylinder in a one-way mode is arranged on the conveying pipe;

one end of the water outlet pipe is communicated with the bottom of the second piston cylinder, and the other end of the water outlet pipe is positioned above the tapping station and faces the tapping station; and the water outlet pipe is provided with a pressure valve.

Further, tapping station side still is provided with the centre gripping subassembly, the centre gripping subassembly includes:

two second slide ways are arranged and are separated from two sides of the tapping station;

the sliding block is arranged on the second slide way, and a chuck is arranged at one end, facing the tapping station, of the sliding block;

the push plate is connected with the moving piece through the rod piece, the push plate is positioned on one side of the sliding block away from the tapping station, the bottom of the push plate is provided with a slope, one side of the push plate, facing the tapping station, is a vertical surface,

the pull rope is connected between the bottom of the push plate and the upper end of the sliding block;

a groove-shaped opening is formed in the lower side of the second sleeve, and the opening is matched with the chuck in size.

The invention has the beneficial effects that:

(1) the full-automatic tapping machine realizes the full-automatic tapping process of the hexagonal slotted nut to-be-tapped workpiece through the mutual matching work of the sequencing system, the screening system, the tapping system, the transfer system and the positioning system, completes the whole processes of sequencing, aligning, screening, positioning, tapping, blanking and the like of the workpiece, and has high automation degree and high production efficiency.

(2) The workpiece is centered through the centering area of the conveying track, two side surfaces of the workpiece, namely the hexagonal slotted nut, are parallel to the side surfaces of the conveying track, and are kept to be parallel to the side surfaces of the conveying track for conveying, the workpiece with the upward slotted end is screened out by the screening area, the workpiece with the downward slotted end is reserved, the workpieces enter the blanking area under mutual extrusion, the screened workpieces are blanked to the feeding station of the tapping system by the blanking area, and therefore screening and removing of the workpieces are completed, the workpieces capable of being tapped normally are obtained, the trouble of manual screening and removing is avoided, and the working efficiency is improved.

(3) The driving assembly drives the annular plate to rotate, so that the second sleeve at the lower end of the annular plate corresponds to the first sleeve in the blanking area of the screening system, workpieces in the first sleeve fall into the second sleeve, and feeding of the second sleeve at a feeding station is realized; then No. two motor drive annular plates rotate and drive No. two sleeves that have accomplished the material loading and move the tapping station, and the work piece in accomplishing No. two sleeves of tapping is then shifted the unloading station and is carried out the unloading to linked up the circulation of work piece at material loading station, tapping station and unloading station and shifted, guaranteed the orderly conveying of work piece in each process, improved the efficiency of work piece tapping and the degree of automation of tapping process.

(4) The driving part and the tapping cutter are driven to move downwards by the moving part, on one hand, the moving part drives the first piston rod to move downwards and extrude water in the first piston cylinder, so that the water enters the second piston cylinder in a one-way mode through the conveying pipe, the water pressure in the second piston cylinder rises to jack the second piston rod, the second piston rod is inserted into the workpiece through hole, and in the process that the moving part drives the tapping cutter to move downwards continuously, the ball head of the tapping cutter is in contact with the ball groove at the top end of the second piston rod, so that the positioning of a workpiece in the second sleeve positioned at a tapping station is realized, and meanwhile, a spring sleeved outside the tapping cutter is also abutted against the upper surface of the workpiece, so that the workpiece is pressed; the quality of work piece tapping has been improved on the one hand, and on the other hand reduces tapping cutter and receives the harm, has guaranteed tapping cutter's normal life.

(5) According to the invention, the moving member moves downwards to drive the push plate to move downwards, the downwards moving push plate extrudes the sliding block to enable the sliding block to slide in the second slideway, and the sliding block realizes clamping of the side wall of the workpiece in the second sleeve in the sliding process towards the groove-shaped opening on the second sleeve at the tapping station, so that the workpiece at the tapping station is positioned, clamped and fixed in all directions, the stability of the workpiece when the tapping cutter taps the workpiece is ensured, on one hand, the tapping quality of the workpiece is improved, on the other hand, the tapping cutter is reduced from being damaged, and the normal service life of the tapping cutter is ensured.

(6) In the invention, after the tapping cutter is contacted with the second piston rod, the first piston rod continuously moves downwards in the process that the tapping cutter continuously moves downwards, so that the first piston rod continuously fills water for the second piston rod, the second piston rod cannot move upwards, the pressure in the second piston rod is increased to reach the conducting pressure of the pressure valve, the pressure valve is opened, the second piston rod moves downwards under the extrusion of the tapping cutter, and the water in the second piston rod is released through the water outlet pipe and rushes to the tapping cutter which is tapping, so that on one hand, the tapping cutter is cleaned and cooled, the service life of the tapping cutter is prolonged, on the other hand, metal chips on a workpiece are washed, the workpiece is cleaned, and the trouble of manual cleaning is reduced.

In conclusion, the hexagonal slotted nut tapping vibration feeding device disclosed by the invention realizes the automation process of the whole processes of sequencing, screening, loading, tapping, blanking and the like of workpieces, and improves the full-automatic tapping efficiency and tapping quality of the hexagonal slotted nut tapping.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic diagram of a screening system according to the present invention;

FIG. 3 is a schematic view of the mounting of the riser in the screening system of the present invention;

FIG. 4 is a schematic view of the connection of the tapping system, the transfer system and the positioning system of the present invention;

FIG. 5 is a schematic view of the positioning system of the present invention;

FIG. 6 is a schematic diagram of the tapping system of the present invention;

FIG. 7 is a view of the clamping assembly of the present invention in structural relationship to a threading machine;

FIG. 8 is a schematic view of the construction of the threading machine of the present invention;

FIG. 9 is a schematic view of a threaded workpiece according to the present invention;

reference numerals: sequencing system 1, spiral track 11, screening system 2, conveying track 21, correcting area 211, screening area 212, blanking area 213, first track changing area 2111, correcting column 2112, second track changing area 2121, vertical plate 2122, flat section 21221, arc-shaped section 21222, screening component 21223, first through hole 2131, first sleeve 2132, tapping system 3, frame 31, third through hole 311, tapping station 32, blanking station 33, feeding station 34, transfer system 4, annular plate 41, second sleeve 42, opening 421, driving component 43, positioning system 5, first piston cylinder 51, first piston rod 52, second piston cylinder 53, second piston rod 54, water inlet pipe 55, first check valve 551, conveying pipe 56, second check valve 561, water outlet pipe 57, pressure valve 571, tapping machine 6, tapping cutter 61, driving component 62, moving component 63, spring 611, clamping component 7, second slide way 71, slide block 72, Collet 721, push plate 73, pull cord 74, circulation rail 8, cross bar 81.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Example one

As shown in fig. 1 to 4, a hexagonal slotted nut tapping vibration feeding device includes:

a sorting system 1;

the screening system 2 is used for receiving the workpieces conveyed by the sorting system 1, and the screening system 2 is arranged on one side of the sorting system 1;

the tapping system 3 comprises a rack 31, wherein a tapping station 32, a blanking station 33 and a feeding station 34 positioned at the lower part of one end of the screening system 2 are arranged on the rack 31;

the transfer system 4 is used for transferring the workpiece from the loading station 34 to the tapping station 32 for tapping and transferring the workpiece after tapping at the tapping station 32 to the blanking station 33, and is arranged on the rack 31;

and the positioning system 5 is used for positioning the workpiece to be tapped, and the positioning system 5 is arranged beside the tapping station 32.

Specifically, the workpiece to be tapped is a hexagonal slotted nut, a groove is formed in one end of the hexagonal slotted nut, each groove is perpendicular to the side face of the hexagonal slotted nut, one end of a thread in the hexagonal slotted nut is different from the other end of the thread, tapping can be started only from the end, which is not grooved, of the hexagonal slotted nut during tapping, if the tapping direction is wrong, the hexagonal slotted nut cannot be installed subsequently, and therefore the hexagonal slotted nut must be placed correctly in a position before being tapped. During work, the sequencing system 1 is used for sequencing workpieces to be tapped, conveying the workpieces in a standing mode one by one, providing a driving force for the workpieces, enabling the adjacent workpieces to be pushed forward to convey the workpieces, selecting a vibration disc in the prior art to sequence and convey the workpieces, and the screening system 2 is used for screening the workpieces conveyed by the sequencing system 1, screening the workpieces which are not tapped and have upward slotted ends and reserving the workpieces with downward slotted ends; the feeding station 34 of the tapping system 3 is used for receiving the workpieces screened by the screening system 2, the transfer system 4 is used for transferring the workpieces of the feeding station 34 to the tapping station 32 for tapping, before tapping, the positioning system 5 positions the workpieces to be tapped so as to enable the tapping positions of the workpieces to be accurate, and the workpieces are delivered to the blanking station 33 for blanking through the transfer system 4 after tapping; through the mutual cooperation work of the sequencing system 1, the screening system 2, the tapping system 3, the transfer system 4 and the positioning system 5, the full-automatic tapping process of the workpiece to be tapped of the hexagonal slotted nut is realized, the whole processes including sequencing alignment, screening, positioning, tapping, blanking and the like of the workpiece are completed, the automation degree is high, and the production efficiency is high.

The screening system 2 includes:

the conveying rail 21 is arranged above the feeding station 34, and one end of the conveying rail 21 is connected with the sequencing system 1; the conveying track 21 is provided with a straightening area 211 for straightening the workpieces, a screening area 212 for screening the straightened workpieces, and a blanking area 213 for blanking the screened and retained workpieces to the feeding station 34.

When the sorting system works, the sorting system 1 is a vibrating disc in the prior art, but the vibrating disc in the prior art can only carry out whole-process conveying and screening on workpieces with steps or bulges on the side surfaces, and corresponding to the hexagonal slotted nut workpiece in the scheme, the vibrating disc can only sort the workpieces in the scheme and enable the workpieces to stand, the workpieces with the downward slotted ends cannot be screened out, and the spiral track 11 on the vibrating disc is connected with the conveying track 21 of the screening system 2; the aligning area 211 of the conveying track 21 is used for aligning the workpiece, so that two side surfaces of the workpiece, namely the hexagon slotted nut, are parallel to the side surfaces of the conveying track 21, and the two side surfaces are kept parallel to the side surfaces of the conveying track 21 for conveying, the screening area 212 is used for screening out the workpiece with the slotted end facing upwards, retaining the workpiece with the slotted end facing downwards, continuing to push the workpieces mutually to enable the workpiece to enter the blanking area 213, and the blanking area 213 is used for blanking the screened workpiece to the feeding station 34 of the tapping system 3.

The rectifying section 211 includes:

a first derailment area 2111, the first derailment area 2111 being narrowed by a width, and a minimum width of the first derailment area 2111 being between a maximum width and a minimum width of the workpiece;

and a correction post 2112, wherein the correction post 2112 is positioned at the edge of the wider side of the first rail change area 2111.

When the workpiece passes through the aligning column 2112, when the side surface of the workpiece is not parallel to the side surface of the conveying track 21, and the workpiece is conveyed to the aligning column 2112, because the minimum distance of the side surface of the aligning column 2112, which is far from the conveying track 21, is smaller than the maximum diameter of the workpiece, the side surface of the workpiece, which is close to the aligning column 2112, is blocked, so that friction is generated between the workpiece and the aligning column 2112, and the workpiece advances under the pushing of the subsequent workpiece, so that the workpiece, which is in contact with the aligning column 2112, automatically rotates for a certain angle because the side surface is blocked, so as to eliminate the blockage and continue to convey forwards, so that one pair of the mutually parallel surfaces of the workpiece is conveyed and travels parallel to the side surface of the conveying track 21, the workpiece is aligned, and the purpose of the pair of the mutually parallel surfaces of the workpiece is to be parallel to the conveying track 21, the width of the inner side of the conveying track 21 of the first track change area 2111 is reduced, the minimum width of the first track change area 2111 is between the maximum width and the minimum width of the workpiece, and the straightened workpiece is conveyed continuously according to the straightened state by reducing the width of the inner side of the conveying track 21 of the first track change area 2111; furthermore, a driving force for rotating around the axis of the centering post 2112 can be given to the centering post 2112, so that the centering post 2112 rotates, and the workpiece can be better driven to rotate and be centered by the centering post 2112.

The screening area 212 includes:

a second rail changing area 2121, wherein a vertical plate 2122 for supporting a workpiece is arranged at the bottom of the conveying rail 21 of the second rail changing area 2121, the width of the vertical plate 2122 is smaller than the width of a groove formed in the workpiece, and the vertical plate 2122 is parallel to the side wall of the conveying rail 21; a notch is arranged on one side wall of the second track changing area 2121 of the conveying track 21;

the riser 2122 includes:

a flat section 21221, wherein the flat section 21221 is flush with the bottom of the first rail change area 2111;

and an arc-shaped section 21222, one end of the arc-shaped section 21222 is connected with the flat section 21221, the arc-shaped section 21222 protrudes upwards, and the other end of the arc-shaped section 21222 which is not connected with the flat section 21221 is connected with and is level with the bottom of the conveying track 21 of the blanking area 213.

A screen assembly 21223 for pushing the workpiece with its open end upward to remove the workpiece is disposed above the flat section 21221.

In operation, the workpiece passes through the straightening area 211, and the notch of the workpiece is parallel to the side surface of the conveying track 21, namely the notch of the workpiece is parallel to the vertical plate 2122; because the width of the vertical plate 2122 is smaller than the width of the workpiece to be grooved, the notch of the workpiece with the downward grooved end is directly clamped on the vertical plate 2122, so that the workpiece with the downward grooved end falls by the height of one groove depth, and the workpiece with the upward grooved end cannot fall, namely the height of one groove depth is different between the workpieces with different grooved ends in the second orbital transfer area 2121; a notch is formed in one side surface of the conveying rail 21 at the flat section 21221, the screening assembly 21223 provides a pushing force to the workpiece with the upward slotted end to tilt the workpiece towards the notch, so that the workpiece with the upward slotted end is removed, and when the workpiece with the downward slotted end passes through the arc-shaped section 21222, the bottom end of the workpiece can be higher than the bottom of the conveying rail 21, so that the workpiece with the original bottom end lower than the bottom of the conveying rail 21 can smoothly fall on the bottom of the conveying rail 21, and further can be conveyed to the blanking area 213 without hindrance. The screening component 21223 is an impeller driven by a first motor, workpieces with upward slotted ends are removed through rotation of the impeller, and the lowest position of the impeller is higher than the upper end of the workpiece with the downward slotted end.

The blanking area 213 includes:

the first through hole 2131 is provided, and the first through hole 2131 with the cross sectional shape matched with the maximum cross sectional shape of the workpiece is arranged in the blanking area 213 of the conveying track 21;

the first sleeve 2132 is arranged at the lower end of the first through hole 2131, and the inner diameter of the first sleeve 2132 is the same as that of the first through hole 2131.

During operation, workpieces with downward slotted ends are pushed and squeezed mutually, and further reach the first through hole 2131 of the blanking area 213, and the cross sectional shapes of the inner surfaces of the first through hole 2131 and the first sleeve 2132 are matched with the cross sectional shape of the workpieces, so that the workpieces can fall in a mode that one pair of side surfaces of the workpieces are parallel to the side surfaces of the conveying track 21, and the workpieces can fall smoothly.

Example two

As shown in fig. 4 to 8, in which the same or corresponding components as in the first embodiment are denoted by the same reference numerals as in the first embodiment, only the points of difference from the first embodiment will be described below for the sake of convenience. The second embodiment is different from the first embodiment in that: the transfer system 4 comprises:

the annular plate 41 is used for supporting the workpiece in the sleeve 2132, passes through the feeding station 34, the tapping station 32 and the blanking station 33 and is arranged at the upper part of the frame 31;

a second sleeve 42, the second sleeve 42 is arranged at the lower end of the annular plate 41 and penetrates through the annular plate 41 to be flush with the upper surface of the annular plate 41,

at least three second sleeves 42 are arranged and respectively correspond to the feeding station 34, the tapping station 32 and the blanking station 33;

a driving assembly 43, a driving assembly 43 for driving the annular plate 41 to rotate is arranged on the frame 31, and the driving assembly 43 is connected with the annular plate 41.

When the feeding device works, the driving assembly 43 comprises a second motor, the second motor is fixed on the frame 31, a driving shaft of the second motor is connected with the inner wall of the annular plate 41 through a connecting piece to drive the annular plate 41 to rotate, the second motor is a servo motor and intermittently rotates, the second motor drives the annular plate 41 to rotate, a second sleeve 42 at the lower end of the annular plate 41 corresponds to a first sleeve 2132 of the blanking area 213 of the screening system 2, and a workpiece in the first sleeve 2132 falls into the second sleeve 42, so that feeding of the second sleeve 42 at the feeding station 34 is realized; then, the second motor drives the annular plate 41 to rotate and drives the second sleeve 42 which is completely charged to move to the tapping station 32, and the workpiece in the second sleeve 42 which is completely tapped is transferred to the blanking station 33 for blanking.

The tapping station 32 is provided with a tapping machine 6; the threading machine 6 includes:

the tapping tool 61, the lower end of the tapping tool 61 is provided with a ball head;

a driving member 62, wherein the driving member 62 is used for driving the tapping cutter 61 to rotate and is connected with the tapping cutter 61;

the moving piece 63 is used for driving the moving piece 63 of the tapping cutter 61 to move up and down and is connected with the driving piece 62;

a third through hole 311 is formed in the frame 31 at the tapping station 32, the aperture of the third through hole 311 is larger than the diameter of the tapping cutter 61 and smaller than the maximum width of the bottom of the workpiece, and the third through hole 311 is coaxial with the tapping cutter 61.

During work, the driving piece 62 drives the tapping cutter 61 to rotate, and the tapping cutter 61 is driven to move up and down by matching with the moving piece 63 so as to tap a workpiece, wherein the moving piece 63 comprises but is not limited to a hydraulic telescopic cylinder, and the telescopic rod is driven to move in a telescopic manner by the hydraulic telescopic cylinder so as to drive the tapping cutter 61 to move up and down; the driving member 62 includes, but is not limited to, a third motor, and drives the tapping cutter 61 to rotate through the third motor; the upper end of the moving member 63 is arranged on the frame 31; the third through hole 311 has a diameter larger than the diameter of the tapping cutter 61 and smaller than the maximum width of the bottom of the workpiece, and the third through hole 311 is coaxial with the tapping cutter 61, and the third through hole 311 is provided to prevent the tapping cutter 61 from drilling the frame 31 when tapping the workpiece.

The tapping cutter 61 is externally sleeved with a spring 611, and the spring 611 is connected with the bottom end of the moving part 63. During operation, the spring 611 is sleeved outside the tapping cutter 61, so that when the tapping cutter 61 taps a workpiece, the spring 611 can abut against the upper end of the workpiece, the vibration amplitude of the workpiece is reduced, and the tapping quality of the workpiece is improved.

The positioning system 5 includes:

the first piston cylinder 51 is arranged beside the tapping station 32 on the rack 31;

the first piston rod 52 is arranged in the first piston cylinder 51, and one end of the first piston rod 52 is vertically connected with the moving member 63 through a connecting member;

the second piston cylinder 53 is located right below the third through hole 311 of the tapping station 32;

one end of the second piston rod 54 is arranged in the second piston cylinder 53 in a matched mode, a ball groove matched with the ball head is formed in the top end of the second piston rod 54, and the diameter of the second piston rod 54 is matched with the inner diameter of a workpiece;

the water inlet pipe 55 is communicated with the bottom of the first piston cylinder 51, and a first check valve 551 for one-way water inlet to the first piston cylinder 51 is arranged on the water inlet pipe 55;

the delivery pipe 56 is communicated with the bottom ends of the first piston cylinder 51 and the second piston cylinder 53, and a second check valve 561 which is communicated with the second piston cylinder 53 in a one-way mode is arranged on the delivery pipe 56;

one end of the water outlet pipe 57 is communicated with the bottom of the second piston cylinder 53, and the other end of the water outlet pipe 57 is positioned above the tapping station 32 and faces the tapping station 32; the water outlet pipe 57 is provided with a pressure valve 571.

When the workpiece threading device works, the moving piece 63 drives the first piston rod 52 to move upwards through the connecting piece, the pressure in the first piston cylinder 51 is reduced, so that the water inlet pipe 55 can be filled with water in the first piston cylinder 51 in a one-way mode, when the moving piece 63 moves downwards, the moving piece 63 drives the first piston rod 52 to move downwards and extrude water in the first piston cylinder 51, the water in the first piston cylinder 51 is conveyed into the second piston cylinder 53 in a one-way mode through the conveying pipe 56 after being extruded, the second piston rod 54 is jacked up by the water in the second piston cylinder 53, and the second piston rod 54 moves upwards and penetrates through the third through hole 311 to the through hole to be threaded of the workpiece, so that the through hole of the workpiece is positioned; when the moving member 63 drives the tapping cutter 61 to be close to the workpiece and to start tapping, the second piston rod 54 just realizes the positioning of the through hole of the workpiece, and the ball groove of the second piston rod 54 is abutted against the ball head of the tapping cutter 61, and then, when the tapping cutter 61 is driven by the moving member 63 to move downwards to start tapping the workpiece, because the second piston rod 54 is already abutted against the tapping cutter 61, the second piston rod 54 cannot move upwards continuously, at this time, in the process that the moving member 63 moves downwards continuously, water is continuously filled in the second piston cylinder 53 to increase the pressure in the second piston cylinder 53, so that the pressure valve 571 of the water outlet pipe 57 is opened, the water outlet pipe 57 is flushed towards the tapping cutter 61 which is tapping, on one hand, the temperature of the tapping cutter 61 can be reduced, the service life of the tapping cutter 61 is prolonged, on the other hand, metal chips can be flushed to a certain extent along the gap between the third through hole 311 and the second piston rod 54, the cleaning of part of metal scraps is realized; the tapping cutter 61 continuously props against the second piston rod 54 and moves the piston rod downwards, the tapping cutter 61 continuously taps the workpiece, the tapping cutter 61 always props against the second piston rod 54, so that the water pressure in the second piston cylinder 53 cannot be reduced, the pressure valve 571 is closed until the tapping cutter 61 is separated from the second piston rod 54, at the moment, the tapping cutter 61 finishes tapping, and the top of the second piston rod 54 is extruded below the upper surface of the third through hole 311; after tapping is completed, the moving member 63 drives the tapping cutter 61 to rise, the driving member 62 drives the tapping cutter 61 to rotate reversely, the moving member 63 continues to drive the first piston rod 52 to rise through the connecting member, water in the first piston cylinder 51 is supplemented, and next circular motion is performed.

Tapping station 32 side still is provided with centre gripping subassembly 7, centre gripping subassembly 7 includes:

two second slide ways 71 are arranged, and the two second slide ways 71 are separated from two sides of the tapping station 32;

the sliding block 72 is arranged on the second slide way 71, and one end, facing the tapping station 32, of the sliding block 72 is provided with a clamping head 721;

the push plate 73 is connected with the moving piece 63 through a rod piece, the push plate 73 is positioned on one side of the sliding block 72, which is far away from the tapping station 32, the bottom of the push plate 73 is provided with a slope, one side of the push plate 73, which faces the tapping station 32, is a vertical surface,

the pull rope 74 is connected between the bottom of the push plate 73 and the upper end of the sliding block 72;

the second sleeve 42 is provided with a groove-shaped opening 421 at the lower side thereof, and the opening 421 is matched with the chuck 721 in size.

During operation, the driving member 62 drives the push plate 73 to move downwards, the push plate 73 presses the sliding block 72 through the slope to enable the sliding block 72 to slide towards the tapping station 32 in the second sliding way 71, the two sliding blocks 72 drive the chuck 721 to clamp towards the workpiece in the second sleeve 42 at the tapping station 32, until the tapping cutter 61 reaches the workpiece, the positioning system 5 positions the workpiece, then the chuck 721 clamps the outer side wall of the workpiece, when the driving member 62 moves downwards continuously, the vertical surface of the push plate 73 just props against the sliding block 72, at this time, during the driving member 62 continuously drives the push plate 73 to move downwards, the push plate 73 will not continuously strengthen the extrusion on the sliding block 72 but keep the original propping extrusion force to enable the chuck 721 to continuously keep clamping the workpiece, when the tapping cutter 61 taps, the clamping assembly 7 clamps the workpiece, on one hand, vibration of the workpiece during tapping is reduced and further positioning and fixing of the workpiece is strengthened, the tapping quality of the workpiece is improved, the workpiece is fixed, the possibility that the tapping cutter 61 is damaged during tapping is reduced, and the service life of the tapping cutter 61 is prolonged; when the moving member 63 returns, the moving member 63 drives the push plate 73 to move upwards, and the push plate 73 pulls the sliding block 72 to move backwards through the pull rope 74 so as to release the clamping of the workpiece.

A circulating track 8 is arranged beside the screening system 2, two ends of the circulating track 8 are perpendicular to the conveying track 21 and are communicated with the conveying track 21, one end of the circulating track 8 is connected to and communicated with a flat section 21221 of a vertical plate 2122 of the conveying track 21, a cross rod 81 is arranged at the communicated position, and the other end of the circulating track 8 is connected to and communicated with the starting end of the correcting area 211 of the conveying track 21; the length of the end of the endless track 8 perpendicular to the flat section 21221 is shorter than one workpiece length and longer than half the workpiece length; the height of the cross bar 81 is flush with half of the height of the workpiece with the slotted end facing upwards.

When in work, the screening component 21223 pushes the workpiece with the upward slotted end to quickly tilt towards the notch, and the workpiece is just abutted against the cross bar 81 when being inclined, so that the workpiece is reversely rotated and enters the circulating track 8, because the gaps between the peripheral side walls of the circulating track 8 can only accommodate one workpiece, the workpiece is not easy to topple after being reversed, one end of the groove of the reversed workpiece faces downwards, the workpiece is reversed or pushed to be conveyed or pushed by the telescopic cylinder, so that the turned workpiece returns to the righting region 211 along the circulation rail 8 to continue to be repeatedly righted, and then, the workpieces are continuously screened, so that the workpieces are prevented from being continuously screened to reduce the number of the workpieces entering the blanking area 213, and the workpieces are prevented from continuously returning to the sequencing system 1 to continue to experience long sequencing time, and further the working efficiency of the hexagonal slotted nut tapping vibration feeding device is improved.

Working procedure

The vibrating disk vibrates to sequence the workpieces, meanwhile, the workpieces are conveyed in a standing state, after the workpieces enter the screening system 2, the workpieces reach the aligning area 211 and are aligned, one pair of grooves formed in the workpieces are parallel to the conveying track 21, when the workpieces are conveyed to the screening area 212, the workpieces with the upward slotted ends and the downward slotted ends are in different height states on the vertical plate 2122, so that the workpieces are convenient to screen, in the flat section 21221 of the screening area 212, the screening assembly 21223 pushes the workpieces with the upward slotted ends to reject the workpieces, the workpieces which are not rejected are continuously conveyed to the blanking area 213 and fall from the first sleeve 2132, the workpieces in the first sleeve 2132 are prevented from falling due to the blocking of the annular plate 41 at the bottom of the first sleeve 2132, when the annular plate 41 is driven by the driving assembly 43 to rotate to enable the annular sleeve 42 to reach the feeding station 34, at the moment, the annular sleeve 42 is coaxial with the sleeve 2132, the workpiece in the first sleeve 2132 falls and falls into the second sleeve 42, because the bottom of the second sleeve 42 is blocked by the frame 31, the workpiece in the second sleeve 42 cannot fall, the driving assembly 43 continues to drive the annular plate 41 to rotate, when the annular plate 41 drives the second sleeve 42 to reach the tapping station 32, the moving member 63 drives the driving member 62 and the tapping cutter 61 to move downwards, at the moment, on one hand, the moving member 63 drives the first piston rod 52 to move downwards and extrude the water in the first piston cylinder 51, so that the water enters the second piston cylinder 53 in a one-way manner through the conveying pipe 56, the water pressure in the second piston cylinder 53 rises to jack the second piston rod 54, so that the second piston rod 54 is inserted into the workpiece through hole, in the process that the moving member 63 drives the tapping cutter 61 to move downwards continuously, the contact between the ball head of the tapping cutter 61 and the ball groove at the top end of the second piston rod 54 is realized, and the positioning of the workpiece in the second sleeve 42 positioned in the tapping station 32 is realized, meanwhile, the spring 611 sleeved outside the tapping cutter 61 also props against the upper surface of the workpiece, so that the workpiece is compressed; on the other hand, the moving member 63 moves downwards to drive the push plate 73 to move downwards, the push plate 73 moving downwards extrudes the sliding block 72 to enable the sliding block 72 to slide in the second sliding way 71, and the sliding block 72 clamps the side wall of the workpiece in the second sleeve 42 in the sliding process towards the groove-shaped opening 421 on the second sleeve 42 at the tapping station 32, so that the workpiece at the tapping station 32 is positioned, clamped and fixed in all directions, the stability of the workpiece when the tapping cutter 61 taps the workpiece is ensured, on one hand, the tapping quality of the workpiece is improved, on the other hand, the tapping cutter 61 is reduced from being damaged, the normal service life of the tapping cutter 61 is ensured, and in the process that the tapping cutter 61 continuously moves downwards, as the vertical surface of the push plate 73 is in contact with the sliding block 72, the sliding block 72 does not move any more at the moment, and the problem that the moving member 63 moves downwards and is jammed is avoided; after the tapping cutter 61 is contacted with the second piston rod 54, in the process that the tapping cutter 61 continuously moves downwards, the first piston rod 52 continuously moves downwards, the first piston rod 51 continuously fills water for the second piston rod 53, the second piston rod 54 cannot move upwards, the pressure in the second piston rod 53 is increased, the conducted pressure of the pressure valve 571 is reached, the pressure valve 571 is opened, the second piston rod 54 moves downwards under the extrusion of the tapping cutter 61, and the water in the second piston rod 53 is released through the water outlet pipe 57 and is flushed to the tapping cutter 61 which is tapping, so that on one hand, the tapping cutter 61 is cleaned and cooled, the service life of the tapping cutter 61 is prolonged, on the other hand, metal scraps on a workpiece are flushed, and the workpiece is cleaned; when the moving member 63 moves upwards to drive the tapping cutter 61 to return, the second piston rod 54 is already positioned at the lower end of the second sleeve 42 of the tapping station 32, the movement of the second sleeve 42 at the tapping station 32 cannot be blocked, and in the lifting process of the moving member 63, the second piston rod 54 is in a static state, the first piston rod 52 is lifted, the first piston cylinder 51 continues to supplement water in a single direction through the water inlet pipe 55, the moving member 63 drives the push plate 73 to lift, the push plate 73 pulls the slider 72 to move backwards through the pull rope 74, the chuck 721 is loosened and far away from the workpiece which is tapped, so that the one-time tapping process is realized, then the driving assembly 43 drives the annular plate 41 to rotate, so that the second sleeve 42 of the tapping station 32 is moved to the blanking station 33 for blanking, and at the moment, the second sleeve 42 of the loading station 34 finishes loading and moves to the tapping station 32, and the work is performed in a cycle, so that the workpieces are sorted and the workpieces are moved to the tapping station 32, Screening, material loading, tapping, unloading and other overall process's automated process has improved the full automatization tapping efficiency of hexagonal slotted nut tapping.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a hexagonal slotted nut tapping vibration feed arrangement which characterized in that includes:

a sorting system (1);

the screening system (2) is used for receiving the workpieces conveyed by the sorting system (1), and the screening system (2) is arranged on one side of the sorting system (1);

the tapping system (3) comprises a rack (31), wherein a tapping station (32), a blanking station (33) and a feeding station (34) positioned at the lower part of one end of the screening system (2) are arranged on the rack (31);

the transfer system (4) is used for transferring the workpiece of the loading station (34) to the tapping station (32) for tapping and transferring the workpiece of which the tapping station (32) is finished to the blanking station (33), and is arranged on the rack (31);

and the positioning system (5) is used for positioning the workpiece to be tapped and is arranged beside the tapping station (32).

2. A hexagonal slotted nut tapping vibratory feeder according to claim 1, characterised in that the screening system (2) comprises:

the conveying track (21), one end of which is connected with the sequencing system (1), is arranged above the feeding station (34); the conveying track (21) is provided with a straightening area (211) for straightening the workpieces, a screening area (212) for screening the straightened workpieces and a blanking area (213) for blanking the screened and reserved workpieces to a feeding station (34).

3. A hexagonal slotted nut tapping vibratory feeder according to claim 1, characterised in that said righting region (211) comprises:

a change track area number one (2111), the change track area number one (2111) is narrowed by a width, and a minimum width of the change track area number one (2111) is between a maximum width and a minimum width of the workpiece;

and the straightening post (2112) is positioned at the edge of the wider side of the first rail changing area (2111).

4. A hexagonal slotted nut tapping vibratory feeder according to claim 1, characterised in that the screening zone (212) comprises:

a second track changing area (2121), wherein a vertical plate (2122) for supporting a workpiece is arranged at the bottom of the conveying track (21) of the second track changing area (2121), the width of the vertical plate (2122) is smaller than the width of a groove of the workpiece, and the vertical plate (2122) is parallel to the side wall of the conveying track (21); a notch is arranged on one side wall of the second track changing area (2121) of the conveying track (21);

the riser (2122) comprises:

a flat section (21221), wherein the flat section (21221) is flush with the bottom of the first rail changing area (2111);

one end of the arc-shaped section (21222) is connected with the flat section (21221), the arc-shaped section (21222) protrudes upwards, and the other end of the arc-shaped section (21222) which is not connected with the flat section (21221) is connected with and leveled with the bottom of the conveying track (21) of the blanking area (213);

a screening assembly (21223) for pushing the workpiece with the grooved end upward to reject the workpiece, the screening assembly (21223) being disposed above the flat section (21221).

5. A hexagonal slotted nut tapping vibratory feeder according to claim 1, characterised in that said blanking zone (213) comprises:

the first through hole (2131), the cross-sectional shape of which is matched with the maximum cross-sectional shape of the workpiece, is arranged in the blanking area (213) of the conveying track (21);

the first sleeve (2132), the first sleeve (2132) is arranged at the lower end of the first through hole (2131), and the inner diameter of the first sleeve (2132) is the same as that of the first through hole (2131).

6. A hexagonal slotted nut tapping vibratory feeder according to claim 1, characterised in that said transfer system (4) comprises:

the annular plate (41) is used for supporting the workpiece in the first sleeve (2132), passes through the feeding station (34), the tapping station (32) and the blanking station (33), and is arranged at the upper part of the rack (31);

a second sleeve (42), wherein the second sleeve (42) is arranged at the lower end of the annular plate (41) and penetrates through the annular plate (41) to be flush with the upper surface of the annular plate (41),

at least three second sleeves (42) are arranged and respectively correspond to the feeding station (34), the tapping station (32) and the discharging station (33);

and the driving assembly (43) is used for driving the annular plate (41) to rotate, the driving assembly (43) is arranged on the rack (31), and the driving assembly (43) is connected with the annular plate (41).

7. A hexagonal slotted nut tapping vibratory feed device according to claim 1, characterised in that said tapping station (32) is provided with a tapping machine (6); the threading machine (6) comprises:

the lower end of the tapping cutter (61) is provided with a ball head;

the driving piece (62) is used for driving the tapping cutter (61), and the driving piece (62) used for driving the tapping cutter (61) to rotate is connected with the tapping cutter (61);

the moving piece (63) is used for driving the moving piece (63) of the tapping cutter (61) to move up and down and is connected with the driving piece (62);

the tapping machine is characterized in that a third through hole (311) is formed in the rack (31) at the tapping station (32), the aperture of the third through hole (311) is larger than the diameter of the tapping cutter (61) and smaller than the maximum width of the bottom of a workpiece, and the third through hole (311) is coaxial with the tapping cutter (61).

8. A vibratory feeding device for tapping of hexagonal slotted nuts as claimed in claim 1, characterized in that said tapping cutter (61) is externally sheathed with a spring (611), said spring (611) being connected with the bottom end of the moving member (63).

9. A hexagonal slotted nut tapping vibratory feeder according to claim 1, characterised in that said positioning system (5) comprises:

the first piston cylinder (51), the first piston cylinder (51) is arranged beside the tapping station (32) on the rack (31);

one end of the first piston rod (52) is vertically connected with the moving piece (63) through a connecting piece, and the first piston rod (52) is arranged in the first piston cylinder (51) in a matching manner;

the second piston cylinder (53) is located right below the third through hole (311) of the tapping station (32);

one end of the second piston rod (54) is arranged in the second piston cylinder (53) in a matching mode, a ball groove matched with the ball head is formed in the top end of the second piston rod (54), and the diameter of the second piston rod (54) is matched with the inner diameter of a workpiece;

the water inlet pipe (55), the water inlet pipe (55) is communicated with the bottom of the first piston cylinder (51), and a first check valve (551) for feeding water to the first piston cylinder (51) in a one-way mode is arranged on the water inlet pipe (55);

the delivery pipe (56) is communicated with the bottom ends of the first piston cylinder (51) and the second piston cylinder (53), and a second check valve (561) leading to the second piston cylinder (53) in a one-way mode is arranged on the delivery pipe (56);

one end of the water outlet pipe (57) is communicated with the bottom of the second piston cylinder (53), and the other end of the water outlet pipe (57) is positioned above the tapping station (32) and faces the tapping station (32); the water outlet pipe (57) is provided with a pressure valve (571).

10. A hexagonal slotted nut tapping vibratory feed device according to claim 1, characterized in that a clamping assembly (7) is further provided beside the tapping station (32), the clamping assembly (7) comprising:

two second sliding ways (71) are arranged, and the two second sliding ways (71) are separated from two sides of the tapping station (32);

the sliding block (72) is arranged on the second slide way (71), and a clamping head (721) is arranged at one end, facing the tapping station (32), of the sliding block (72);

the push plate (73) is connected with the moving piece (63) through a rod piece, the push plate (73) is positioned on one side, away from the tapping station (32), of the sliding block (72), a slope is arranged at the bottom of the push plate (73), one surface, facing the tapping station (32), of the push plate (73) is a vertical surface,

the pull rope (74) is connected between the bottom of the push plate (73) and the upper end of the sliding block (72);

a groove-shaped opening (421) is formed in the lower side of the second sleeve (42), and the opening (421) is matched with the chuck (721) in size.