CN2158317Y

CN2158317Y - Milling machine head with drilling and cutting mechanism in it

Info

Publication number: CN2158317Y
Application number: CN 93210322
Authority: CN
Inventors: 周炳勇; 孔胜利
Original assignee: TIANJIN POWER MACHINE PLANT
Current assignee: TIANJIN POWER MACHINE PLANT
Priority date: 1993-04-24
Filing date: 1993-04-24
Publication date: 1994-03-09
Anticipated expiration: 2003-04-24

Abstract

The utility model relates to a milling machine head whose spindle is provided with a drilling and cutting mechanism, composed of a case body, a spindle, a milling cutter disc, the transmission system of an electric apparatus, etc.; the transmission system of an electric apparatus is connected with the spindle. The utility model is characterized in that the spindle is provided with a through hole; the interior of the hole is provided with a built-in drill bit and an ejector rod, and a hollow drill spindle whose outer surface is provided with an axial key groove; the spindle wall is fixed with a pin key; the rear end of the drill spindle is provided with a bearing sleeve pipe and a drill bit ejector oil cylinder; the rear end surface of the case body is fixed with a connecting rod and an oil cylinder for the drill spindle to telescope, and the oil cylinder for the drill spindle to telescope is connected with the drill ejector oil cylinder; the front end of the drill spindle is also provided with a dust sealing device and a drill head falling protection device. The utility model has the advantages that the utility model can carry out the milling and drilling, and the milling and the drilling processing can be alternatively carried out without dismounting a cutter.

Description

Milling machine head with drilling and cutting mechanism in it

The utility model belongs to the parts of lathe, and the milling head of drilling sector is housed in particularly a kind of main shaft.

In known technology, the milling head of lathe normally by casing, run through casing and be positioned at main shaft that casing front and rear wall place is equipped with bearing, be contained in the facing cutter of front-end of spindle, and the drive and the compositions such as electric drive system that are connected with drive that are contained in rear-end of spindle.This milling head generally can only the milling metal works the plane, when except that the plane, also needing on same workpiece, hole, then to move on to it on drilling machine and process, time-consuming, when especially processing large quantities of workpiece, production efficiency is low; The head of a bed of some boring machine, boring and milling machine or machining center can not move under the situation of the bed of changing planes workpiece milled and bores processing at workpiece, but need loading and unloading to change cutter, increased unproductive time, or the cutter changing system of need configuration structure complexity, involve great expense, processing cost is improved.

The purpose of this utility model is that the deficiency at known technology provides a kind of and can not move the bed of changing planes at workpiece and just can mill workpiece and bore or brill mills two kinds of processing, and need not unload the milling head that drilling sector is housed in the main shaft that any one cutting tool carries out processing continuously man-hour hocketing two kinds to add.

The purpose of this utility model realizes by following measure:

Drilling sector is housed in main shaft, its structure is to have through hole on main shaft, a front end band taper hole is housed in the through hole and has the hollow auger spindle of the straight hole that is connected with taper hole in the rear end, have keyway on the outer surface of auger spindle rear end vertically, be fixed with the pin key that inserts keyway with the keyway corresponding section on the main shaft wall, the drill bit of a band taper caudal peduncle is housed in the taper hole of auger spindle front end, be equipped with in the straight hole of rear end one that stretch out in auger spindle and the female drill bit knock-pin of retaining is housed on the termination of stretching out, knock-pin is set with the push rod back-moving spring between auger spindle rear end face and retaining mother, the rear end of auger spindle has male half coupling, be socketed with the bearing sleeve that the rear and front end respectively has inner stopper on the auger spindle head of male half coupling rear end, the follower head of auger spindle stretches out in the inner stopper of sleeve pipe rear end, the locknut that backstop is used is housed on its termination, between the male half coupling of the inner stopper of its front end and auger spindle and between the locknut of the inner stopper of rear end and auger spindle follower head a thrust bearing is being housed respectively respectively in the bearing sleeve, the rear end of bearing sleeve ejects oil cylinder to being connected to a cylindrical drill that can put in main shaft, the connecting rod of oil cylinder is relative with the drill bit knock-pin, be fixed with the flexible oil cylinder of using of an auger spindle on the rear end face of casing, its connecting rod is connected with the rear end that auger spindle ejects oil cylinder, and the front end of auger spindle of the present utility model also is provided with dust seal device and drill bit falling-proof apparatus.

The structure of the dust seal device of the utility model auger spindle front end is to have annular groove on the outer surface of auger spindle end, and sealing ring is housed in the annular groove.

The structure of the drill bit falling-proof apparatus of this milling head auger spindle front end is that the caudal peduncle upper edge outer surface at the drill bit of auger spindle front end dress has the annular groove that section is circular arc, on the auger spindle wall with the drill bit caudal peduncle on the annular groove corresponding section radially have through hole, the decorative pearl on top of an official cap, spring are housed in the through hole and are fixed on screw on the auger spindle.

The utility model has the advantages that: owing in the main shaft of milling head, drilling sector is housed, workpiece is not moved change planes bed just can mill to bore or brill mills two kinds of processing, and owing to the auger spindle of drilling sector is contained in the main shaft of milling head, the flexible oil cylinder of using of auger spindle is equipped with in the milling head rear end, auger spindle is stretched out when drilling, time spent withdrawal, thereby need not unload bottom tool man-hour hocketing to mill to bore to add, processing can be carried out continuously, improved production efficiency.

The utility model has following accompanying drawing:

Fig. 1 is a structural representation of the present utility model.

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail:

The utility model is provided with the casing 24 of cast iron, the front and rear wall that runs through casing is equipped with main shaft 3, be positioned at the front and rear wall place on the main shaft and be equipped with

bearing

26 and 21 respectively, axial jacking force is fixed with thrust bearing 23 at bearing 26 rear sides with locknut 6 when making main shaft bear machined, facing cutter 1 is installed on the front end of main shaft, be fixed with inertial flywheel and travelling gear 9 with key on the follower head, with locknut 16 lockings, travelling gear with by motor, the electric drive system that driven wheel constitutes links to each other, drilling sector is housed in main shaft, its structure is to have through hole on main shaft, the hollow auger spindle 22 that a front end has taper hole and has the straight hole that is connected with taper hole in the rear end is housed in the through hole, the elastic slip of energy in main shaft have keyway 30 vertically on the outer surface of auger spindle rear end with auger spindle interlock and auger spindle when realizing main shaft gyration, have the hole with the keyway corresponding section on the main shaft wall, the pin key 8 that inserts keyway is housed in the hole, it is screwed on the main shaft wall, the drill bit 2 of a band taper caudal peduncle is housed in the taper hole of auger spindle front end, unload for ease of drill bit, a drill bit knock-pin 7 that stretches out in the auger spindle rear end and retaining female 15 is housed on the termination of stretching out is housed in the straight hole of rear end, retaining is female to be fixed with taper pin, between auger spindle rear end face and retaining mother, be set with a push rod back-moving spring 10 on the knock-pin rear end, the rear end of auger spindle has male half coupling 20, be socketed with the bearing sleeve 18 that a rear and front end respectively has inner stopper 29 on the cylinder boss oblique crank Z head of its rear end, the follower head of auger spindle stretches out in the inner stopper of sleeve pipe rear end, backstop and the locknut 17 that auger spindle is linked to each other with sleeve pipe are equipped with in its end, between the male half coupling of the inner stopper of its front end and auger spindle and between the locknut of inner inner stopper and auger spindle follower head a thrust bearing 19 is being housed respectively respectively in the bearing sleeve, the rear end of bearing sleeve ejects the hydraulic jack 11 of usefulness to being connected to a cylindrical drill that can stretch into main shaft, the connecting rod of oil cylinder is relative with the drill bit knock-pin, the connecting rod of oil cylinder stretches out and pushes the drill bit push rod when the need den bohrkopf abbauen, its drill bit is ejected, ejecting back push rod back-moving spring just rebounds push rod, it is flexible with hydraulic jack 12 that the rear end of casing is provided with an auger spindle, it is fixed on the end body rear end face by connecing cover 13 and housing plate 14, its connecting rod is connected with the rear end that drill bit ejects oil cylinder, when need boring adds man-hour, the connecting rod of this oil cylinder is released, and then the promotion drill bit ejects oil cylinder and bearing sleeve, the auger spindle that is connected on front end is released, in the time need not holing, connecting rod can retract auger spindle.Pull the main shaft inwall between main shaft and the auger spindle for preventing that smear metal etc. from entering, and drill bit falls down when drilling and has an accident, the front end of auger spindle of the present utility model also is provided with dust seal device and drill bit falling-proof apparatus, its the former structure is to have annular groove on the outer surface of auger spindle front end, and dust-proof seal ring 4 is housed in the annular groove; The latter's structure is that the caudal peduncle upper edge outer surface at the drill bit of auger spindle front end dress has the annular groove 25 that section is circular arc, on the auger spindle wall with the drill bit caudal peduncle on the annular groove corresponding section radially have through hole, the decorative pearl on top of an official cap 27, spring 28 and screw 5 are housed in the through hole successively, screw-driving is fixed on the auger spindle, its decorative pearl on top of an official cap props up the drill bit caudal peduncle under the effect of spring, make that drill bit is unlikely to fall down adding man-hour.

Hydraulic jack of the present utility model links to each other with pump, valve and fuel tank etc. by oil pipe, constitute hydraulic system, the electrical system of this system and milling head realizes automation as being used and can and can controlling its various processing actions milling or creeping into row in advance with digital control system.

Claims

1, the milling head of drilling sector is housed in a kind of main shaft, be by casing, run through casing and be positioned at the main shaft that casing front and rear wall place is equipped with bearing, be contained in the facing cutter of front-end of spindle, and the drive and the compositions such as electric drive system that are connected with drive that are contained in rear-end of spindle, it is characterized in that: drilling sector is housed in the main shaft, its structure is to have through hole on main shaft, the hollow auger spindle that a front end has taper hole and has the straight hole that is connected with taper hole in the rear end is housed in the through hole, have keyway on the outer surface of auger spindle rear end vertically, be fixed with the pin key that inserts keyway with the keyway corresponding section on the main shaft wall, the drill bit of a band taper caudal peduncle is housed in the taper hole of auger spindle front end, be equipped with in the straight hole of rear end one that stretch out in auger spindle and the female drill bit knock-pin of retaining is housed on the termination of stretching out, between auger spindle rear end face and retaining mother, be set with the push rod back-moving spring on the knock-pin, the rear end of auger spindle has male half coupling, be socketed with the bearing sleeve that the rear and front end respectively has inner stopper on the auger spindle head of male half coupling rear end, the follower head of auger spindle stretches out in the inner stopper of sleeve pipe rear end, the locknut that backstop is used is housed on its termination, between the male half coupling of the inner stopper of its front end and auger spindle and between the locknut of the inner stopper of rear end and auger spindle follower head a thrust bearing is being housed respectively respectively in the bearing sleeve, the rear end of bearing sleeve ejects oil cylinder to being connected to a cylindrical drill that can put in main shaft, the connecting rod of oil cylinder is relative with the drill bit knock-pin, be fixed with the flexible oil cylinder of using of an auger spindle on the rear end face of casing, its connecting rod is connected with the rear end that drill bit ejects oil cylinder, and the front end of auger spindle of the present utility model also is provided with dust seal device and drill bit falling-proof apparatus.

2, milling head according to claim 1 is characterized in that: the structure of the dust seal device of auger spindle front end is to have annular groove on the outer surface of auger spindle end, and sealing ring is housed in the annular groove.

3, milling head according to claim 1, it is characterized in that: the structure of the drill bit falling-proof apparatus of auger spindle front end is that the caudal peduncle upper edge outer surface at the drill bit of auger spindle front end dress has the annular groove that section is circular arc, on the auger spindle wall with the drill bit caudal peduncle on the annular groove corresponding section radially have through hole, the decorative pearl on top of an official cap, spring are housed in the through hole and are fixed on screw on the auger spindle.