CN112318125A

CN112318125A - High-efficient numerical control machine tool

Info

Publication number: CN112318125A
Application number: CN202011228072.3A
Authority: CN
Inventors: 卓沧升
Original assignee: Zhangzhou Jianxin Machinery Co ltd
Current assignee: Lin Zongsheng
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-02-05
Anticipated expiration: 2040-11-06
Also published as: CN112318125B

Abstract

The invention discloses a high-efficiency numerical control processing machine tool, which comprises a drilling device for drilling a nut blank, a milling device for milling six edge surfaces of the nut blank, and a tapping and milling device for chamfering and then tapping the nut blank; and placing the nut blank on a clamping device on a drilling device, a milling device or a tapping and milling device; after the nut blank is drilled in the drilling device, the clamping device clamps the nut blank to the milling device to mill six edge surfaces of the nut blank, three nonadjacent edge surfaces of the nut blank are milled simultaneously, then the other three nonadjacent edge surfaces of the nut blank are milled simultaneously, and after the nut blank is machined, the clamping device clamps the nut blank to the tapping device to chamfer and tap threads; once it is higher to mill cutting efficiency to three faceted pebble, adopt clamping device to replace manual operation for whole device automation more.

Description

High-efficient numerical control machine tool

Technical Field

The invention relates to the field of nut processing machinery, in particular to a high-efficiency numerical control processing machine tool.

Background

The nut is a nut, and is screwed together with a bolt or a screw rod to play a role in fastening, and one element which is necessary for all production and manufacturing machines is divided into carbon steel, stainless steel, non-ferrous metal (such as copper) and other types according to different materials.

The hexagon nut is a comparatively nut commonly used, and the nut blank is processed through the digit control machine tool to current hexagon nut processing mostly, and the flow of work is mostly: and milling a prismatic surface of the hexagon nut, then rotating the hole, and finally tapping. Although the nut blank is milled by a numerical control machine tool, the machined ridge surfaces are all milled one by one, the efficiency is extremely low, and the automation degree of the whole process is low.

In view of the above, the applicant has made an intensive study on the above-mentioned defects in the prior art, and has made this invention.

Disclosure of Invention

The invention mainly aims to provide an efficient numerical control machining machine tool which is high in machining efficiency and high in automation degree.

In order to achieve the above purpose, the solution of the invention is:

a high-efficiency numerical control machine tool comprises a drilling device for drilling a nut blank, a milling device for milling six edge surfaces of the nut blank, and a tapping and milling device for chamfering and then tapping the nut blank; and a clamping device for placing the nut blank on the drilling device, the milling device or the tapping and milling device.

Further, the milling device comprises a milling fixing mechanism for clamping and fixing the inner hole of the nut blank and a milling mechanism for milling the fixed nut blank.

Further, the milling mechanism comprises a first milling device for milling three nonadjacent edge surfaces of the nut blank at the same time, and a second milling device for milling the other three nonadjacent edge surfaces of the nut blank at the same time.

Further, the milling mechanism comprises a milling bearing ring for bearing the first milling device and the second milling device; the first milling equipment and the second milling equipment are connected on the inner side wall of the milling bearing ring in a sliding mode; the first milling device and the second milling device may be remote from or close to the milling fixture.

Further, the first milling equipment comprises three first milling bodies which are distributed on the inner side wall of the milling bearing ring at intervals around the axis of the milling bearing ring;

the second milling equipment comprises three second milling bodies which are distributed on the inner side wall of the milling bearing ring at intervals around the axis of the milling bearing ring;

the central axis of the first milling body and the central axis of the second milling body are adjacent to each other by 60 degrees by taking the axis of the milling bearing ring as an axis.

Further, the first milling body comprises a first milling moving seat which can move on the inner side wall of the milling bearing ring, a first milling connecting seat of which one end is connected with the first milling moving seat and the other end is connected with a first milling cutter, and the first milling cutter is used for processing the nut blank;

the second milling body comprises a second milling movable seat which can move on the inner side wall of the milling bearing ring, a second milling connecting seat of which one end is connected with the second milling movable seat and the other end is connected with a second milling cutter, and a second milling cutter for processing the nut blank.

Further, the first milling body further comprises a first milling telescopic mechanism for driving the first milling connecting seat to be close to or far away from the axis of the milling bearing ring;

the second milling body further comprises a second milling telescopic mechanism for driving the second milling connecting seat to be close to or far away from the axis of the milling bearing ring.

Further, the first milling telescopic mechanism comprises a first guide post formed on one surface of the first milling moving seat facing the first milling connecting seat, a first guide hole formed on the first milling connecting seat and matched with the first guide post, a first threaded hole formed in the first milling connecting seat, and a first milling screw capable of driving the first milling connecting seat to be far away from or close to the milling bearing ring;

the second milling telescopic mechanism comprises a second guide post formed on the second milling movable seat and facing to two surfaces of the second milling connecting seat, a second guide hole formed on the second milling connecting seat and matched with the second guide post, a second threaded hole formed in the second milling connecting seat, and a second milling screw rod capable of driving the second milling connecting seat to be far away from or close to the milling bearing ring.

Further, the first milling body further comprises a first milling movement driving mechanism for driving the first milling connecting seat to move; the first milling movable driving mechanism comprises a first milling sliding groove and a first milling driving oil cylinder, wherein the first milling sliding groove is formed on the inner side wall of the milling bearing ring and can accommodate the first milling movable seat, and the first milling driving oil cylinder drives the first milling movable seat to move;

the second milling body also comprises a second milling movement driving mechanism for driving the second milling connecting seat to move; the second milling movable driving mechanism comprises a second milling sliding groove and a second milling driving oil cylinder, wherein the second milling sliding groove is formed on the inner side wall of the milling bearing ring and can accommodate the second milling movable seat, and the second milling driving oil cylinder drives the second milling movable seat to move.

Further, a first sliding groove convex block is formed on two non-adjacent side walls of the first milling sliding groove, and a first sliding groove concave pit which is matched with the first sliding groove convex block in the direction is formed on the first connecting seat;

and second sliding groove convex blocks are formed on two non-adjacent side walls of the second milling sliding groove, and second sliding groove pits which are matched with the second sliding groove convex blocks are formed on the second connecting seat.

Further, the milling fixing mechanism comprises a fixing column which can be used for sleeving an inner hole in the nut blank; the axis of the fixing column coincides with the axis of the milling bearing ring.

Further, the fixing column comprises an outer fixing cylinder and an abutting body positioned in the outer fixing cylinder; a notch is formed on the wall of the outer fixed cylinder and used for ejecting the propping body; and an abutting ring for abutting against the nut blank is formed on the outer side wall of the outer fixing cylinder positioned at the bottom of the notch.

Further, the abutting body comprises an abutting circular table capable of moving in the outer fixed cylinder and three ejecting blocks arranged on the outer wall of the abutting circular table at intervals; the ejection block is provided with an arc-shaped side wall corresponding to the side wall of the abutting circular truncated cone.

Further, the ejection block comprises an ejection connecting part which is contacted with the circular truncated cone and an ejection moving part which can be ejected or retracted from the upper notch of the outer fixed cylinder; the outer peripheral surface of the ejection moving part can be attached to the inner wall of the inner hole on the hexagonal thread bristle.

Furthermore, a return spring is connected between the ejection connecting part and the inner side wall of the outer fixed cylinder.

Further, drilling equipment includes the drilling fixture that carries out the centre gripping to the nut blank, carries out the drilling mechanism of drilling to nut blank center to and transport the drilling transport mechanism of drilling fixture with the nut blank.

Further, the drilling clamping mechanism is located on a drilling bearing table at the outlet end of the drilling conveying mechanism, a drilling clamping body for clamping and fixing the nut blank and a drilling clamping driving device for driving the drilling clamping body to clamp or loosen.

Further, the drill clamping body comprises a drill clamping block; the lateral wall of drilling grip block orientation nut blank can be laminated with the outer peripheral face of nut blank mutually.

Further, the drilling clamping driving device comprises a drilling clamping driving oil cylinder; the output end of the drilling clamping driving oil cylinder is connected with the drilling clamping body.

Further, the drilling mechanism is located above the drilling clamping mechanism.

Further, drilling mechanism includes the drilling cutter, drives drilling cutter pivoted drilling rotating electrical machines, and the drive drilling cutter is close to or keeps away from drilling fixture's drilling cutter driving oil jar.

Further, drilling transport mechanism includes drilling transport track, is located drilling transport track end and can promotes the push cylinder of nut blank to and be located drilling transport track rear end and be located feed cylinder under the nut in push cylinder the place ahead.

Further, the track width of the drilling transportation track is larger than the diameter of the nut blank and smaller than the diameters of the two nut blanks.

Further, the nut blanking barrel is positioned above the drilling transportation track; the nut blanking barrel is vertically provided with a blanking channel for accommodating a nut blank.

Further, the drilling device also comprises a nut placing groove for receiving the nut blank falling from the drilling clamping mechanism.

Further, the tapping and milling device comprises a tapping and milling clamping mechanism for clamping the milled nut blank, a chamfering mechanism for chamfering the nut blank and a tapping mechanism for tapping the nut blank.

Furthermore, the tapping and milling device further comprises a tapping and milling bearing seat for bearing the chamfering mechanism and the tapping mechanism, and the tapping and milling bearing seat is provided with a tapping and milling sliding groove for accommodating the chamfering mechanism and the tapping mechanism.

Furthermore, the tapping and milling device further comprises a tapping and milling upper and lower driving mechanism for driving the tapping and milling bearing seat to move up and down.

Further, the upper and lower driving mechanism for tapping and milling comprises a tapping and milling screw hole formed in the bearing seat for tapping and milling, a tapping and milling screw matched with the tapping and milling screw hole, and a tapping and milling screw driving motor driving the tapping and milling screw to rotate.

Furthermore, the upper and lower tapping and milling driving mechanism further comprises a tapping and milling screw bearing seat for bearing the tapping and milling screw and a tapping and milling screw driving motor.

Further, attack and mill fixture including attacking and mill the clamping body, support the nut blank attack and mill processing and support the platform, and bear attack and mill the clamping body with attack and mill processing and support the platform and attack and mill the centre gripping and bear the seat.

Further, attack and mill the clamping body including connecting attack on milling the centre gripping carrier seat and mill the centre gripping fixing base, with attack that mills centre gripping fixing base sliding connection attack and mill the centre gripping and remove the seat, with attack that mills that the centre gripping removes the seat rotation and connect and attack that mills the centre gripping and rotate the post to and connect and rotate the post towards the nut blank and mill the grip block.

Further, the chamfering mechanism comprises a chamfering tool, a chamfering tool clamping and rotating seat and a chamfering tool driving mechanism, wherein the chamfering tool clamping and rotating seat is used for clamping the chamfering tool and can rotate, and the chamfering tool driving mechanism drives the chamfering tool clamping and rotating seat to move towards the tapping and milling clamping mechanism.

Further, the chamfering tool comprises a chamfering tool clamping part for clamping and fixing the chamfering tool rotating seat and a chamfering processing part for chamfering the nut blank.

Further, chamfer processing portion is cylindricly, chamfer processing portion is formed with the round platform recess of indent towards the one side of hexagon nut, round platform recess bottom is formed with the chamfer awl piece that is the triangle pyramid.

Further, tapping mechanism includes the screw tap, the centre gripping the seat is rotated in the screw tap and rotatable screw tap centre gripping to and the screw tap actuating mechanism who drives the screw tap centre gripping and rotate the seat and move towards tapping and milling clamping mechanism.

Furthermore, the tapping and milling device further comprises a finished product collecting box positioned below the tapping and milling clamping mechanism.

Further, the clamping device comprises a clamping manipulator.

Further, the numerical control bearing box body is used for bearing the drilling device, the milling device, the tapping and milling device and the clamping device.

After the structure is adopted, the invention relates to a high-efficiency numerical control processing machine tool, which at least has the following beneficial effects:

1. after the nut blank is drilled in the drilling device, the clamping device clamps the nut blank to the milling device to mill six edge surfaces of the nut blank, three nonadjacent edge surfaces of the nut blank are milled simultaneously, then the other three nonadjacent edge surfaces of the nut blank are milled simultaneously, and after the nut blank is machined, the clamping device clamps the nut blank to the tapping device to chamfer and tap threads; once it is higher to mill cutting efficiency to three faceted pebble, adopt clamping device to replace manual operation for whole device automation more.

2. The small-head outwards-facing abutting circular truncated cone and the ejecting block are arranged in the outer fixing cylinder, when the drilled nut blank is sleeved on the outer peripheral surface of the outer fixing cylinder through the clamping device, the oil cylinder drives the abutting circular truncated cone to outwards move along the axis of the outer fixing cylinder, the ejecting block is ejected out, and the ejecting block abuts against the inner wall of the inner hole of the nut blank and is tightly fixed.

3. Be cylindricly through setting up chamfer processing portion, chamfer processing portion is formed with the round platform recess of indent and round platform recess bottom towards the one side of hexagon nut and is formed with the chamfer cutter that is the chamfer awl piece of triangular pyramid for the cutter can once only carry out outer peripheral face chamfer and hole chamfer to the nut blank.

Drawings

Fig. 1 is a schematic view of a three-dimensional structure of a high-efficiency numerical control processing machine tool.

Fig. 2 is a schematic perspective view of the drilling device and the tapping and milling device according to the present invention.

Fig. 3 is a schematic perspective view of the milling mechanism according to the present invention.

Fig. 4 is a schematic perspective view of a fixing post according to the present invention.

Fig. 5 is a schematic perspective view of the abutting body of the present invention.

Fig. 6 is a schematic perspective view of the drilling device of the present invention.

Fig. 7 is a schematic perspective view of the chamfering mechanism and the tapping mechanism according to the present invention.

Fig. 8 is a schematic perspective view of the chamfering tool according to the present invention.

Fig. 9 is a schematic perspective view of the tapping and milling clamping mechanism of the present invention.

In the figure: a drilling device 1; a drilling clamping mechanism 11; a drilling bearing table 111; a drill clamping block 112; drilling and clamping the driving cylinder 113; a drilling mechanism 12; a drilling tool 121; a drilling tool driving cylinder 122; a drilling transport mechanism 13; a borehole transport track 131; a push cylinder 132; a nut discharging barrel 133; a nut placement groove 14;

a milling device 2; a milling fixing mechanism 21; a fixing column 211; the outer fixed barrel 2111; the abutting ring 21111; the abutting body 2112; the abutting circular truncated cone 21121; an ejection block 21122; ejection connection 211221; an ejection moving section 211222; a return spring 21123; a milling mechanism 22; a first milling body 221; a first milling moving seat 2211; first guide post 22111; the first milling screw 22112; a first milled connection seat 2212; a first milling cutter 2213; a first milling drive cylinder 2214; the second milling body 222; second milling moving seat 2221; second milled connecting socket 2222; a second guide post 22221; second milling screw 22222; a second milling cutter 2223; a second milling drive cylinder 2224; milling the carrier ring 23;

a tapping and milling device 3; a tapping and milling clamping mechanism 31; tapping and milling the clamping body 311; a tapping, milling and clamping fixed seat 3111; a tapping and milling clamping movable seat 3112; tapping, milling and clamping the rotating column 3113; a tapping and milling clamping block 3314; a top abutment 312 is machined by tapping and milling; a chamfering mechanism 32; a chamfering tool 321; a chamfering tool holding portion 3211; the chamfer processed portion 3212; the chamfering tool grips the rotating seat 322; a tapping mechanism 33; a tap 331; a tap holding rotary base 332; tapping and milling the bearing seat 34; a tapping and milling up-down driving mechanism 35; a finished product collection box 36;

a holding device 4; a clamping robot 41; and a numerical control bearing box body 5.

Detailed Description

In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following specific examples.

As shown in fig. 1 to 9, the efficient numerical control machine tool according to the present invention includes a drilling device 1 for drilling a nut blank, a milling device 2 for milling six edges of the nut blank, and a tapping device 3 for chamfering and tapping the nut blank; and a holding device 4 for placing the nut blank on the drilling device 1, the milling device 2 or the tapping and milling device 3. After the nut blank is drilled in the drilling device 1, the clamping device 4 clamps the nut blank to the milling device 2 to mill six edge surfaces of the nut blank, three nonadjacent edge surfaces of the nut blank are milled simultaneously, then the other three nonadjacent edge surfaces of the nut blank are milled simultaneously, and after the nut blank is machined, the clamping device 4 clamps the nut blank to the tapping device 3 to chamfer and tap threads; milling efficiency is higher once to three faceted pebbles, adopts clamping device 4 to replace manual operation for whole device is more automatic.

Preferably, the milling device 2 comprises a milling fixing mechanism 21 for clamping and fixing the inner hole of the nut blank, and a milling mechanism 22 for milling the fixed nut blank. The milling fixing mechanism 21 enables the milling mechanism 22 to perform milling more stably and accurately.

Preferably, the milling mechanism 22 includes a first milling device for simultaneously milling three non-adjacent facets of the nut blank, and a second milling device for simultaneously milling the other three non-adjacent facets of the nut blank. The first milling equipment mills the three edges firstly, and the second milling equipment mills the other three edges after following the first milling equipment, so that the milling precision is ensured, and the milling continuity is ensured to improve the processing efficiency.

Preferably, the milling mechanism 22 comprises a milling carrier ring 23 carrying the first milling device and the second milling device; the first milling equipment and the second milling equipment are slidably connected to the inner side wall of the milling bearing ring 23; the first and second milling apparatuses may be remote from or adjacent to the milling fixture 21. The arrangement of the milling carrier ring 23 makes it more reliable to carry the first milling device and the second milling device.

Preferably, the first milling device comprises three first milling bodies 221 distributed on the inner side wall of the milling carrier ring 23 at intervals around the axis of the milling carrier ring 23;

the second milling device comprises three second milling bodies 222 which are distributed on the inner side wall of the milling bearing ring 23 at intervals around the axis of the milling bearing ring 23;

the central axis of the first milling body 221 and the central axis of the second milling body 222 are adjacent to each other by 60 ° about the axis of the milling carrier ring 23. And the mutual interference in the milling process is prevented, so that the milling precision is low.

Preferably, the first milling body 221 includes a first milling movable seat 2211 movable on the inner sidewall of the milling bearing ring 23, a first milling connecting seat 2212 having one end connected to the first milling movable seat 2211 and the other end connected to the first milling cutter 2213, and a first milling cutter 2213 for processing the nut blank; the first milling movable base 2211 drives the first milling connecting base 2212 to move, so that the first milling cutter 2213 can process the outer side wall of the nut blank fixed on the milling fixing mechanism 21, and the three first milling movable bases 2211 of the three first milling bodies 221 move synchronously, thereby improving the processing efficiency;

the second milling body 222 includes a second milling moving seat 2221 movable on the inner sidewall of the milling carrier ring 23, a second milling connecting seat 2222 having one end connected to the second milling moving seat 2221 and the other end connected to the second milling cutter 2223, and a second milling cutter 2223 for machining the nut blank. The second milling moving seat 2221 drives the second milling connecting seat 2222 to move, so that the second milling cutter 2223 can process the outer side wall of the nut blank fixed on the milling fixing mechanism 21, and the three second milling moving seats 2221 of the three second milling bodies 222 move synchronously, thereby improving the processing efficiency.

Preferably, the first milling body 221 further comprises a first milling telescoping mechanism for driving the first milling connecting seat 2212 to approach or depart from the axis of the milling bearing ring 23; the first milling telescopic mechanism is arranged, so that nut blanks with different sizes can be processed, nut blanks with different specifications can be produced, and the adaptability is high;

second milling body 222 also includes a second milling jack mechanism that drives second milling interface seat 2222 toward or away from the axis of milling carrier ring 23. The second milling telescopic mechanism is arranged, so that nut blanks of different sizes can be processed, nut blanks of different specifications can be produced, and the adaptability is high.

Preferably, the first milling telescoping mechanism includes a first guiding post 22111 formed on one side of the first milling moving seat 2211 facing the first milling connecting seat 2212, a first guiding hole formed on the first milling connecting seat 2212 and matched with the first guiding post 22111, a first threaded hole forming the first milling connecting seat 2212, and a first milling screw 22112 capable of driving the first milling connecting seat 2212 to be far away from or close to the milling bearing ring 23; the driving by the first milling screw 22112 is more stable;

the second milling telescoping mechanism includes a second guiding post 22221 formed on second milling moving seat 2221 facing the two faces of second milling connecting seat 2222, a second guiding hole formed on second milling connecting seat 2222 and matching with second guiding post 22221, a second threaded hole forming second milling connecting seat 2222, and a second milling screw 22222 capable of driving second milling connecting seat 2222 away from or close to milling bearing ring 23. The drive is more smooth by the second milling screw 22222.

Preferably, the first milling body 221 further comprises a first milling moving driving mechanism for driving the first milling connecting seat 2212 to move; the first milling moving driving mechanism comprises a first milling chute which is formed on the inner side wall of the milling bearing ring 23 and can accommodate the first milling moving seat 2211, and a first milling driving oil cylinder 2214 which drives the first milling moving seat 2211 to move; the oil cylinder 2214 is more reliable through the first milling, so that the cutting process is more stable;

the second milling body 222 further includes a second milling movement driving mechanism for driving the second milling connecting seat 2222 to move; the second milling moving driving mechanism includes a second milling sliding groove formed on the inner sidewall of the milling carrier ring 23 and capable of accommodating the second milling moving seat 2221, and a second milling driving cylinder 2224 for driving the second milling moving seat 2221 to move. The second milling driving oil cylinder 2224 is more reliable, so that the cutting process is more stable;

preferably, two non-adjacent side walls of the first milling chute are provided with first chute convex blocks, and the first connecting seat is provided with first chute concave pits which are matched with the first chute convex blocks; through the cooperation of first spout lug and first spout pit for sliding connection is more reliable.

Second sliding groove convex blocks are formed on two non-adjacent side walls of the second milling sliding groove, and second sliding groove concave pits matched with the second sliding groove convex blocks are formed in the second connecting seat. Through the cooperation of second spout lug and second spout pit for sliding connection is more reliable.

Preferably, the milling fixing mechanism 21 includes a fixing column 211 for allowing an inner hole of the nut blank to be sleeved; the axis of the fixing post 211 coincides with the axis of the milling carrier ring 23. The coincident axes allow for better positioning of the milling mechanism 22 prior to machining.

Preferably, the fixing post 211 comprises an outer fixing barrel 2111, and an abutting body 2112 located in the outer fixing barrel 2111; a notch is formed on the wall of the outer fixed barrel 2111 for ejecting the propping body 2112; an abutting ring 21111 for abutting against the nut blank is formed on the outer side wall of the outer fixing barrel 2111 at the bottom of the notch. The nut blank is held tightly by the ejection of the abutment 2112 from the indentation.

Preferably, the abutting body 2112 comprises an abutting circular truncated cone 21121 which can move in the outer fixed cylinder 2111, and three ejecting blocks 21122 which are arranged on the outer wall of the abutting circular truncated cone 21121 at intervals; the ejector 21122 has arc-shaped side walls corresponding to the side walls of the abutment boss 21121. The inward side wall of the ejection block 21122 is attached to the side wall of the abutting circular table 21121, so that the surface area contact is increased, and the abrasion of the ejection block 21122 when the abutting circular table 21121 moves is reduced.

Preferably, the ejector block 21122 includes an ejector connecting portion 211221 contacting the circular truncated cone, and an ejector moving portion 211222 which can eject or retract from the notch on the outer fixed cylinder 2111; the outer peripheral surface of the ejector moving portion 211222 can be attached to the inner wall of the inner hole of the hexagonal thread. The outer peripheral surface of the ejecting moving part 211222 can be attached to the inner wall of the inner hole of the hexagonal thread blank, and the surface area contact is increased, so that the fixation is more firm.

Preferably, a return spring 21123 is connected between the ejector connecting portion 211221 and the inner side wall of the outer fixed barrel 2111. The return spring 21123 returns the ejector 21122 to prevent interference with the next nut blank.

Preferably, the drilling device 1 includes a drilling clamping mechanism 11 for clamping the nut blank, a drilling mechanism 12 for drilling the center of the nut blank, and a drilling transport mechanism 13 for transporting the nut blank to the drilling clamping mechanism 11. And is more intelligent.

Preferably, the drilling clamping mechanism 11 is located at the drilling plummer 111 at the outlet end of the drilling transportation mechanism 13, the drilling clamping body for clamping and fixing the nut blank, and the drilling clamping driving device for driving the drilling clamping body to clamp or release. When the nut blank moves to the drilling bearing table 111, the drilling clamping body clamps and processes, so that the drilling process is more stable.

Preferably, the bore clamp body comprises a bore clamp block 112; the sidewall of the bore clamp block 112 facing the nut blank may engage the outer periphery of the nut blank. The drill clamping block 112 is clamped more firmly by increasing the contact surface area.

Preferably, the drilling clamping driving device comprises a drilling clamping driving oil cylinder 113; the output end of the drilling clamping driving oil cylinder 113 is connected with the drilling clamping body. The driving is more reliable through the oil cylinder.

Preferably, the drilling mechanism 12 is located above the drill clamping mechanism 11. Is more reasonable.

Preferably, the drilling mechanism 12 includes a drilling tool 121, a drilling rotation motor for driving the drilling tool 121 to rotate, and a drilling tool driving cylinder 122 for driving the drilling tool 121 to approach or separate from the drilling chucking mechanism 11. The driving by the drilling tool driving oil cylinder 122 is more stable and firm.

Preferably, the drilling transport mechanism 13 includes a drilling transport rail 131, a pushing cylinder 132 located at the end of the drilling transport rail 131 and capable of pushing the nut blank, and a nut discharging barrel 133 located at the rear end of the drilling transport rail 131 and in front of the pushing cylinder 132. More intelligent, the pushing cylinder 132 pushes the nuts dropped from the nut dropping barrel 133 forward one by one.

Preferably, the track width of the bore hole transport track 131 is greater than the diameter of the nut blank and less than the diameter of both nut blanks. The most preferable distance of the track width of the drilling transportation track 131 is slightly larger than the diameter of the nut blanks, so that the nut blanks can move on the drilling transportation track 131 one by one in order, and the subsequent processing is convenient.

Preferably, the nut feeder barrel 133 is located above the borehole transport rail 131; the nut blanking barrel 133 is vertically provided with a blanking channel for accommodating nut blanks. Automatic unloading is realized to dead weight through the nut blank, promotes cylinder 132 and will drop the nut blank propelling movement forward one by one, and the nut blank in feed cylinder 133 falls on drilling transportation track 131 automatically under the nut, more intelligent.

Preferably, the drilling device 1 further comprises a nut placing groove 14 for receiving the nut blank dropped from the drilling fixture 11. More reasonable, the clamping device 4 is convenient to clamp.

Preferably, the tapping and milling device 3 comprises a tapping and milling clamping mechanism 31 for clamping the milled nut blank, a chamfering mechanism 32 for chamfering the nut blank, and a tapping mechanism 33 for tapping the nut blank, so that the device is more intelligent.

Preferably, the tapping and milling device 3 further includes a tapping and milling bearing seat 34 for bearing the chamfering mechanism 32 and the tapping mechanism 33, and the tapping and milling bearing seat 34 is provided with a tapping and milling sliding groove for accommodating the chamfering mechanism 32 and the tapping mechanism 33. Move in attacking and milling the sliding tray through hydro-cylinder drive chamfer mechanism 32 and attack screw mechanism 33, chamfer mechanism 32 and attack screw mechanism 33 and remove in attacking and milling the sliding tray, have shortened the distance between two processing steps, promote machining efficiency.

Preferably, the tapping and milling device 3 further comprises a tapping and milling up-down driving mechanism 35 for driving the tapping and milling bearing seat 34 to move up and down. It leads to attacking and milling device 3 and can step down to attack and mill upper and lower actuating mechanism 35 through the setting for 4 centre gripping nut blanks of clamping device are to attacking and milling fixture 31 more convenient.

Preferably, the upper and lower tapping and milling driving mechanism 35 includes a tapping and milling screw hole formed in the tapping and milling bearing seat 34, a tapping and milling screw matched with the tapping and milling screw hole, and a tapping and milling screw driving motor for driving the tapping and milling screw to rotate. The screw is driven more stably through tapping and milling.

Preferably, the upper and lower tapping and milling driving mechanism 35 further includes a tapping and milling screw bearing seat for bearing the tapping and milling screw and the tapping and milling screw driving motor. And is more reasonable.

Preferably, the tapping and milling clamping mechanism 31 includes a tapping and milling clamping body 311, a tapping and milling abutting table 312 abutting against the nut blank, and a tapping and milling clamping bearing seat bearing the tapping and milling clamping body 311 and the tapping and milling abutting table 312. The top supporting table 312 is attacked and milled through the arrangement, so that during machining, the non-machined surface of the nut blank can be abutted to the top supporting table 312 for the attacking and milling, and machining is more stable.

Preferably, attack and mill the holding body 311 and including connecting the centre gripping fixing base 3111 of attacking on attacking the centre gripping bearing seat of milling, with attack and mill the centre gripping and remove the seat 3112 of attacking of milling centre gripping fixing base 3111 sliding connection, with attack and mill centre gripping rotation post 3113 of attacking that mills the centre gripping and remove the seat 3112 and rotate the connection, and connect the rotation post towards the nut blank attack and mill grip block 3314. It rotates the post 3113 to lead to the nut blank to process the one side through the setting-up tapping and milling centre gripping, can rotate under the drive of tapping and milling centre gripping rotation post 3113, need not to turn over the one side and is carrying out the centre gripping after taking off again, and is more reasonable.

Preferably, the chamfering mechanism 32 includes a chamfering tool 321, a chamfering tool holding rotating seat 322 which holds the chamfering tool 321 and is rotatable, and a chamfering tool 321 driving mechanism which drives the chamfering tool holding rotating seat 322 to move towards the tapping and milling clamping mechanism 31, and the chamfering tool 321 driving mechanism is an oil cylinder, which is more reasonable.

Preferably, the chamfering tool 321 includes a chamfering tool holder 3211 for holding the rotary seat of the chamfering tool 321, and a chamfering processed portion 3212 for chamfering the nut blank. And is more reasonable.

Preferably, the chamfer processing portion 3212 is cylindrical, an inwardly concave circular truncated cone groove is formed in one surface of the chamfer processing portion 3212 facing the hexagon nut, and a triangular pyramid-shaped chamfer cone block is formed at the bottom of the circular truncated cone groove. Be cylindricly through setting up chamfer processing portion 3212, chamfer processing portion 3212 is formed with the round platform recess of indent and round platform recess bottom and is formed with the chamfer cutter 321 that is the chamfer awl piece of triangular pyramid form towards the one side of hexagon nut for the cutter can once only carry out outer peripheral face chamfer and hole chamfer to the nut blank.

Preferably, the tapping mechanism 33 includes a tap 331, a tap holding rotary base 332 that holds the tap 331 and is rotatable, and a tap 331 driving mechanism that drives the tap holding rotary base 332 toward the tapping and milling fixture 31. The screw tap 331 driving mechanism is an oil cylinder; the machining abutting table is provided with the screw tap 331 abdicating hole for the screw tap 331 to extend into, so that the machining abutting table is prevented from being damaged during machining, and the machining abutting table is more reasonable.

Preferably, the tapping and milling device 3 further comprises a finished product collection box 36 located below the tapping and milling fixture 31. More reasonable, and the packing of the finished nut is convenient.

Preferably, the gripping device 4 comprises a gripping robot 41. And is more intelligent.

Preferably, the numerical control drilling machine further comprises a numerical control bearing box body 5 for bearing the drilling device 1, the milling device 2, the tapping and milling device 3 and the clamping device 4, and the space utilization rate is improved.

The working principle is as follows: the pushing cylinder 132 pushes the nut blank to an outlet of the drilling transportation rail 131, when the nut blank is pushed onto the drilling bearing table 111, the drilling clamping block 112 clamps the nut blank, the drilling tool 121 drills the nut blank, the nut blank is machined into an inner hole, the pushing cylinder 132 continues to push, and the machined nut blank is pushed into the nut placing groove 14; the clamping manipulator 41 clamps the nut blank in the nut placing groove 14, the nut blank is sleeved on the fixing column 211 and abuts against the abutting ring 21111, the ejection block 21122 ejects and clamps the nut blank, the first milling body 221 moves towards the fixing column 211 to mill three edge surfaces of the nut blank, and the second milling body 222 mills the other three edge surfaces of the nut blank immediately after the first milling body 221 finishes milling; after the milling is finished, the clamping manipulator 41 clamps the nut blank to the tapping and milling clamping mechanism 31, the tapping and milling clamping body 311 clamps the nut blank, the chamfering tool 321 moves towards the nut blank, the nut blank returns after the chamfering is finished, the tapping and milling clamping moving seat 3112 extends out, the tapping and milling clamping rotating column 3113 drives the nut blank to turn over for 180 degrees, and the chamfering tool 321 repeats the actions; after chamfering, the oil cylinder drives the tapping mechanism 33 to move to a working position, the screw tap 331 moves towards the nut blank to tap, after chamfering, the tapping and milling clamping mechanism 31 is loosened, and the hexagon nut falls into the finished product collecting box 36.

The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications thereof by those skilled in the art should be considered as not departing from the scope of the present invention.

Claims

1. A high-efficiency numerical control machine tool is characterized by comprising a drilling device for drilling a nut blank, a milling device for milling six edge surfaces of the nut blank, and a tapping and milling device for chamfering and then tapping the nut blank; and a clamping device for placing the nut blank on the drilling device, the milling device or the tapping and milling device.

2. A high-efficiency numerical control machine tool as claimed in claim 1, characterized in that the milling device comprises a milling fixing mechanism for clamping and fixing the inner hole of the nut blank and a milling mechanism for milling the fixed nut blank.

3. An efficient numerically controlled machine tool as claimed in claim 2, wherein said milling mechanism includes a first milling device for simultaneously milling three non-adjacent facets of the nut blank, and a second milling device for simultaneously milling the other three non-adjacent facets of the nut blank.

4. An efficient numerically controlled machine tool as recited in claim 3, wherein said milling mechanism includes a milling carrier ring carrying the first milling device and the second milling device; the first milling equipment and the second milling equipment are connected on the inner side wall of the milling bearing ring in a sliding mode; the first milling device and the second milling device may be remote from or close to the milling fixture.

5. An efficient numerically controlled machine tool according to claim 4, wherein said first milling device includes three first milling bodies spaced around the axis of the milling carrier ring on the inner side wall of the milling carrier ring;

6. A high-efficiency numerical control machine tool as claimed in claim 5, characterized in that the first milling body comprises a first milling moving seat which can move on the inner side wall of the milling bearing ring, a first milling connecting seat which is connected with the first milling moving seat at one end and is connected with the first milling cutter at the other end, and a first milling cutter for processing the nut blank;

7. An efficient numerically controlled machine tool according to claim 6, wherein said first milling body further comprises a first milling telescoping mechanism for driving said first milling attachment base toward or away from said milling carrier ring axis;

8. An efficient numerically controlled machine tool according to claim 7, wherein the first milling telescoping mechanism includes a first guide post formed on a face of the first milling moving seat facing the first milling connecting seat, a first guide hole formed in the first milling connecting seat and engaged with the first guide post, a first threaded hole forming the first milling connecting seat, and a first milling screw capable of driving the first milling connecting seat away from or close to the milling bearing ring;

9. An efficient numerically controlled machine tool according to claim 6, wherein said first milling body further includes a first milling movement driving mechanism for driving said first milling connecting seat to move; the first milling movable driving mechanism comprises a first milling sliding groove and a first milling driving oil cylinder, wherein the first milling sliding groove is formed on the inner side wall of the milling bearing ring and can accommodate the first milling movable seat, and the first milling driving oil cylinder drives the first milling movable seat to move;

10. A high-efficiency numerical control machine tool as claimed in claim 9, wherein the two non-adjacent side walls of the first milling chute are formed with first chute protrusions, and the first connecting seat is formed with first chute pits which are matched with the first chute protrusions;