CN110202203B - Automatic right angle milling head device - Google Patents
Automatic right angle milling head device Download PDFInfo
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- CN110202203B CN110202203B CN201910608707.3A CN201910608707A CN110202203B CN 110202203 B CN110202203 B CN 110202203B CN 201910608707 A CN201910608707 A CN 201910608707A CN 110202203 B CN110202203 B CN 110202203B
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- 238000003801 milling Methods 0.000 title claims abstract description 109
- 230000007246 mechanism Effects 0.000 claims abstract description 39
- 230000005540 biological transmission Effects 0.000 claims abstract description 31
- 238000007789 sealing Methods 0.000 claims description 22
- 238000001816 cooling Methods 0.000 claims description 17
- 210000000078 claw Anatomy 0.000 claims description 12
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 210000004907 gland Anatomy 0.000 claims 1
- 230000009471 action Effects 0.000 description 11
- 238000007664 blowing Methods 0.000 description 8
- 238000004140 cleaning Methods 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000000110 cooling liquid Substances 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C9/00—Details or accessories so far as specially adapted to milling machines or cutter
- B23C9/005—Details or accessories so far as specially adapted to milling machines or cutter milling heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/70—Stationary or movable members for carrying working-spindles for attachment of tools or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/10—Arrangements for cooling or lubricating tools or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention provides an automatic right-angle milling head device which comprises a transmission mechanism, an automatic broach mechanism, an automatic indexing and orienting mechanism and a multi-channel rotary pipeline mechanism.
Description
Technical Field
The invention relates to the field of machine tool functional parts, in particular to an automatic right-angle milling head device.
Background
The automatic right-angle milling head device is used for realizing the machining of automatically converting a vertical main shaft of a machine tool into a horizontal main shaft, the existing automatic milling head is generally large in size, inconvenient to assemble, disassemble and maintain, and has fewer functions in most cases.
Disclosure of Invention
In order to comprehensively solve the problems, and particularly to overcome the defects in the prior art, the invention provides an automatic right-angle milling head device which is reasonable in distribution, high in indexing accuracy, high in rotating speed and convenient to maintain.
In order to achieve the above purpose, the invention adopts the following technical means: an automatic right-angle milling head device comprises a transmission mechanism, an automatic broaching mechanism, an automatic indexing and orienting mechanism and a multi-channel rotary pipeline mechanism; the transmission mechanism comprises a transmission shaft, a bevel gear shaft, a support bearing, a milling head main shaft, a main shaft rear bearing, a right-angle milling head body, a milling head blind rivet, a front bearing end cover, a main shaft flange, a labyrinth seal sleeve, a bevel gear and a main shaft front bearing, wherein the transmission shaft is connected with the bevel gear shaft through a precise spline, and the bevel gear shaft is connected with the milling head main shaft through the bevel gear; the automatic broach mechanism comprises a broach claw assembly, a loosening cutter bar, a retainer ring, a butterfly spring, a locking nut, a loosening cutter adjusting pad, a disengaging spring, an oil cylinder body, a rotary sealing ring, a movable piston, a rotary sealing ring and an oil cylinder end cover, wherein the rotary sealing ring and the rotary sealing ring are arranged in a groove of the movable piston; the automatic indexing and orienting mechanism comprises a milling head connecting plate, a positioning guide key, a movable pin shaft, a positioning support, a fixing screw, a multi-channel fixing sleeve, a fixing pressing plate, a connecting plate, a positioning fluted disc, a sliding pin shaft, a compression spring and a telescopic spring, wherein the positioning guide key is sleeved on the milling head connecting plate, and the fixing pressing plate is pressed on the positioning guide key and is fixed with the milling head connecting plate through the fixing screw; the movable pin is sleeved in a hole of the milling head connecting plate, a compression spring is arranged on the lower end face of the movable pin, the positioning guide key is fixed with a sliding pin shaft, and the positioning support is fixed on the connecting plate through a fixing screw; the upper end of the transmission shaft is connected with a telescopic spring, the other end of the telescopic spring is fixed on a spring seat, and the positioning fluted disc is fixed on the connecting disc through a screw; the multi-channel rotary pipeline mechanism comprises a quick plug, a rotary sealing ring, a multi-channel rotary shaft, a first adjusting pad, an O-shaped sealing ring, a second adjusting pad, a front flange cover, a quick loose cutter changing connector and a quick cooling changing connector, wherein the multi-channel rotary shaft is sleeved in the multi-channel fixed sleeve and connected with a connecting disc through screws, the multi-channel fixed sleeve is provided with an inner cavity step structure corresponding to the multi-channel rotary shaft, the quick plug is arranged on a milling head connecting plate, the multi-channel fixed sleeve is internally provided with orifices which are respectively communicated with the milling head connecting plate, the quick plug, the quick loose cutter changing connector and the cooling quick changing connector, an adjusting pad second is arranged in an orifice channel which is communicated with a front bearing end cover in the multi-channel fixed sleeve, the first adjusting pad is arranged in an orifice channel which is communicated with the multi-channel fixed sleeve, the O-shaped sealing ring is arranged at the front end of the adjusting pad, an annular circular arc groove corresponding to the orifice on the multi-channel fixed sleeve is arranged on the outer surface of the multi-channel rotary shaft, the outer surface of the multi-channel rotary shaft is arranged on the multi-channel fixed sleeve, orifices are respectively arranged on the multi-channel rotary shaft, orifices are arranged on the multi-channel fixed sleeve, the front end cover is connected with a main shaft body through a right angle, the front end of the front bearing cover is arranged on the multi-channel fixed sleeve, the front bearing cover is connected with the front bearing cover, the front bearing cover is arranged on the main shaft end cover is connected with the main shaft, the main shaft end of the main shaft, the main shaft is connected with the main shaft end cover is arranged on the main shaft end cover, the main shaft end cover and the main shaft end cover is connected with the main shaft through the main shaft bearing body, the main shaft bearing head and the main shaft end cover, the main shaft end cover and the main shaft head is arranged right-head and the main shaft, the main shaft and the main shaft. And the milling head connecting plate is provided with a loose cutter quick-change connector and a cooling quick-change connector.
Further, a gap is formed between the top of the loose cutter bar and the end face of the movable piston.
Further, the gap is 2 mm.
Further, the axial displacement of the multi-channel rotating shaft and the multi-channel fixed sleeve is 0.015-0.03 mm.
The invention has the beneficial effects that: the invention has simple structure, reasonable distribution, high indexing accuracy, high rotation speed and simple maintenance, when the invention works, the end face of the milling head connecting plate of the machine tool, the taper hole of the main shaft, the end face of the milling head connecting plate and the taper surface of the transmission shaft are jointed, the gear ring of the transmission shaft moves downwards for a certain distance under the action of the main shaft to be separated from the directional gear ring on the connecting plate, meanwhile, the movable pin roll on the milling head connecting plate moves towards the inner cavity under the action of the milling head connecting plate of the machine tool, the L-shaped guide groove on the movable pin roll pushes the positioning guide key and the sliding pin roll to move outwards together, the positioning taper surface on the positioning guide key is separated from the positioning support, and the positioning fluted disc on the milling head connecting plate of the machine tool realize precise positioning joint. The movement of the machine tool spindle is transmitted to the milling head spindle through the transmission shaft, the bevel gear shaft and the bevel gear, so that the chip movement of the milling head spindle is realized. According to the automatic broach mechanism, high-pressure oil is introduced into an oil inlet of an oil cylinder end cover to push a movable piston to move forwards for a certain distance, the movable piston is contacted with a tool loosening rod and then pushes the tool forwards together with a tool loosening claw assembly and the like to separate the tool from the tool loosening claw assembly, automatic tool loosening action of tool exchange is performed, when the tool is well exchanged, an oil inlet of the oil cylinder end cover is connected with an oil return inlet in a reversing way, and the whole broach mechanism moves backwards to tighten the tool under the combined action of the spring force of a disengaging spring on an oil cylinder body and the spring force of a butterfly spring on the tool loosening rod, so that automatic tool loosening and clamping actions are completed. Note that a clearance of about 2mm is reserved between the top of the loose cutter bar and the end face of the movable piston after the cutter is tensioned, so that the main shaft of the milling head is ensured not to interfere when rotating.
When the automatic angle indexing is carried out, an oil cylinder on a machine tool milling head connecting plate downwards pushes a milling head blind rivet on the milling head connecting plate to downwards move for 7-8mm, a positioning fluted disc is separated from the positioning fluted disc on the machine tool milling head connecting plate, the cylindrical surface on the milling head blind rivet still keeps orientation with the machine tool milling head connecting plate and cannot rotate relatively, a gear ring on a transmission shaft is meshed with the orientation gear ring on the connecting plate again, a milling head spindle is locked and cannot rotate, a positioning conical surface on a positioning guide key and a positioning support are still in a separated state, when the machine tool spindle rotates for a certain angle according to processing requirements, the transmission shaft, a right-angle milling head body, the milling head spindle and the like relatively rotate for a certain angle with the milling head connecting plate, after the indexing rotation angle is completed, the automatic angle indexing device moves upwards to be attached with the machine tool milling head connecting plate under the upward tensioning effect of the oil cylinder on the machine tool milling head connecting plate, the gear ring on the transmission shaft moves downwards for a certain distance to be separated from the orientation gear ring on the coupling plate, and the positioning fluted disc is separated from the positioning fluted disc on the machine tool milling head connecting plate, and the positioning fluted disc is positioned again precisely, and the automatic angle indexing is completed. When the multichannel rotary pipeline mechanism works, the upper end of the quick-change connector is connected with corresponding air blowing, oil cylinder hydraulic tightening knife and cooling water pipe interfaces on the machine tool connecting plate through the quick-change connector, the loose knife quick-change connector and the cooling quick-change connector on the milling head connecting plate, the lower end of the quick-change connector is connected with corresponding pipelines of the multichannel fixed sleeve, and hydraulic pressure oil is conveyed to the loose knife oil cylinder through the multichannel fixed sleeve, the multichannel rotary shaft, the right-angle milling head body, the oil cylinder end cover and other parts, so that automatic loose knife control is realized. The automatic cleaning and blowing control is realized by conveying the blowing pipeline to the conical surface of the main shaft through the multichannel fixed sleeve, the multichannel rotating shaft, the right-angle milling head body, the oil cylinder end cover, the movable piston, the loose cutter bar, the broach claw assembly, the milling head main shaft and other parts. The high-pressure cooling liquid is sprayed onto the machined part through the multi-channel fixing sleeve, the multi-channel rotating shaft, the right-angle milling head body, the front end cover, the front flange cover and the like, so that automatic cooling control of machining is realized. The axial running quantity of the multi-channel rotating shaft and the multi-channel fixed sleeve is controlled within a gap of 0.02-0.03 mm, the joint end face is matched and ground, the damping cannot be excessively large during indexing of the automatic milling head, and the rotating torque is controlled within 300N.m, so that the spindle motor can be ensured to be normally used.
The automatic right-angle milling head device is used for realizing the processing of automatically converting a vertical main shaft of a machine tool into a horizontal main shaft, is arranged on a vertical main shaft square ram of the machine tool, and can perform the functions of horizontal shaft transmission of the automatic milling head, rotation angle indexing of the automatic milling head, automatic clamping of a cutter, automatic cleaning and blowing of a cutter joint surface, automatic cooling of a cooling pipeline and the like.
Drawings
Fig. 1 is a schematic top view of the present invention.
Fig. 2 is a schematic diagram of the transmission mechanism of the present invention.
Fig. 3 is a schematic structural view of the automatic broaching mechanism of the present invention.
Fig. 4 is a schematic view of the structure of the automatic indexing orientation mechanism of the present invention.
Fig. 5 is a schematic diagram of the B-B structure of fig. 4.
FIG. 6 is a schematic diagram of a multi-channel rotary pipeline mechanism according to the present invention.
Description of the embodiments
The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings.
As shown in fig. 1 to 6, the present embodiment provides an automatic right angle milling head device, which includes a transmission mechanism, an automatic broaching mechanism, an automatic indexing and orienting mechanism, and a multi-channel rotary pipe mechanism; the transmission mechanism comprises a transmission shaft 1, a bevel gear shaft 2, a support bearing 3, a milling head main shaft 4, a main shaft rear bearing 5, a right-angle milling head body 6, a milling head blind rivet 7, a front bearing end cover 9, a main shaft flange 11, a labyrinth seal 10, a bevel gear 12 and a main shaft front bearing 13, wherein the transmission shaft 1 is connected with the bevel gear shaft 2 through a precise spline, and the bevel gear shaft 2 is connected with the milling head main shaft 4 through the bevel gear 12; the automatic broach mechanism comprises a broach claw assembly 20, a broach bar 21, a retainer ring 22, a butterfly spring 23, a lock nut 24, a broach adjustment pad 25, a release spring 26, an oil cylinder 27, a first rotary sealing ring 28, a movable piston 29, a second rotary sealing ring 30 and an oil cylinder end cover 31, wherein the first rotary sealing ring 28 and the second rotary sealing ring 30 are arranged in a groove of the movable piston 29, the butterfly spring 23 and the retainer ring 22 are sleeved on the broach bar 21 and fixed through the lock nut 24, the retainer ring 22 is arranged at the front end of the butterfly spring 23, the movable piston 29 is arranged in the oil cylinder 27, the release spring 26 connected with the movable piston 29 is arranged between the broach bar 21 and the movable piston 29, the broach claw assembly 20 and the broach bar 21 are arranged in the milling head spindle 4, the broach claw assembly 20 and the broach bar 21 are fixed together through threads, the rear end of the milling head spindle 4 is connected with the oil cylinder 27, and the oil cylinder end cover 31 are arranged in the oil cylinder 27; the automatic indexing orientation mechanism comprises a milling head connecting plate 8, a positioning guide key 52, a movable pin shaft 53, a positioning support 54, a fixing screw 55, a multi-channel fixing sleeve 56, a fixing pressing plate 57, a connecting disc 58, a positioning fluted disc 59, a sliding pin shaft 60, a compression spring 61 and a telescopic spring 64, wherein the positioning guide key 52 is sleeved on the milling head connecting plate 8, and the fixing pressing plate 57 is pressed on the positioning guide key 52 and is fixed with the milling head connecting plate 8 through the fixing screw; the movable pin shaft 53 is sleeved in a hole of the milling head connecting plate 8, a compression spring 61 is arranged on the lower end surface of the movable pin shaft 53, a sliding pin shaft 60 is fixed on the positioning guide key 52, and the positioning support 54 is fixed on the connecting plate 58 through a fixing screw 55; the upper end of the transmission shaft 1 is connected with a telescopic spring 64, the other end of the telescopic spring 64 is fixed on a spring seat, and the positioning fluted disc 59 is fixed on the connecting disc 58 through a screw; the multi-channel rotary pipeline mechanism comprises a quick connector 71, a third rotary sealing ring 74, a multi-channel rotary shaft 75, a first adjusting pad 76, an O-shaped sealing ring 77, a second adjusting pad 79, a front flange cover 78, a loose cutter quick connector 81 and a cooling quick connector 82, wherein the multi-channel rotary shaft 75 is sleeved in a multi-channel fixed sleeve 56 and is connected with a connecting disc 58 through screws, the multi-channel fixed sleeve 56 is provided with an inner cavity step structure corresponding to the multi-channel rotary shaft 75, the quick connector 71 is arranged on a milling head connecting plate 8, the multi-channel fixed sleeve 56 is internally provided with orifices respectively communicated with the milling head connecting plate 8, the quick connector 71, the loose cutter quick connector 81 and the cooling quick connector 82, the orifice channel communicated with a front bearing end cover 9 in the multi-channel fixed sleeve 56 is internally provided with the second adjusting pad 79, an adjusting pad I76 is arranged in an orifice channel communicated with the multi-channel fixed sleeve 56 in the multi-channel fixed sleeve 56, an O-shaped sealing ring 77 is arranged at the front end of the adjusting pad I76, annular circular arc grooves corresponding to the orifices on the multi-channel fixed sleeve are arranged on the outer circle surface of the multi-channel rotary shaft 75, third rotary sealing rings 74 are arranged on the upper side and the lower side of the orifices on each multi-channel fixed sleeve on the outer circle surface of the multi-channel rotary shaft 75, the lower end of the multi-channel rotary shaft 75 is connected with a right-angle milling head body 6, the bevel gear shaft 2 is connected with the multi-channel rotary shaft 75 through a supporting bearing 3, the milling head main shaft 4 is connected with the right-angle milling head body 6 through a main shaft rear bearing 5, the milling head main shaft 4 is connected with a front bearing end cover 9 through a main shaft front bearing 13, a front flange cover 78 is arranged at the front end of the front bearing end cover 9, milling head connecting plates 8 are provided with milling head drawing nails 7, the end part of the milling head spindle 4 is provided with a spindle flange 11 connected with a front bearing end cover 9, a labyrinth seal sleeve 10 positioned at two ends of a spindle front bearing 13 is arranged between the milling head spindle 4 and the front bearing end cover 9, and a loose cutter quick-change connector 81 and a cooling quick-change connector 82 are arranged on the milling head connecting plate 8.
Wherein a clearance of 2mm is formed between the top of the loose cutter bar 21 and the end face of the movable piston 29.
Preferably, the axial displacement of the multi-channel rotary shaft 75 from the multi-channel stationary sleeve 56 is 0.015-0.03 mm.
When the embodiment works, the end face of the milling head connecting plate of the machine tool and the taper hole of the main shaft are attached to the end face of the milling head connecting plate 8 and the conical surface of the transmission shaft 1, the gear ring of the transmission shaft 1 moves downwards for a certain distance under the action of the main shaft to be separated from the directional gear ring on the connecting disc 58, meanwhile, the movable pin shaft 53 on the milling head connecting plate 8 moves towards the inner cavity under the action of the milling head connecting plate of the machine tool, the positioning guide key 52 and the sliding pin shaft 60 are pushed to move outwards together through the L-shaped guide groove on the movable pin shaft 53, the positioning conical surface on the positioning guide key 52 is separated from the positioning support 54, and the positioning fluted disc 59 and the positioning fluted disc on the milling head connecting plate of the machine tool realize precise positioning attachment. The movement of the machine tool spindle is transmitted to the milling head spindle 4 through the transmission shaft 1, the bevel gear shaft 2 and the bevel gear 12, so that the chip movement of the milling head spindle 4 is realized. According to the automatic broach mechanism, high-pressure oil is introduced into an oil inlet of an oil cylinder end cover 31 to push a movable piston 29 to move forwards for a certain distance, the movable piston is contacted with a cutter loosening rod 21 and then pushes a cutter forwards together with a cutter pulling claw assembly 20 and the like to separate the cutter from the cutter pulling claw assembly 20, automatic cutter loosening action of cutter exchanging is performed, when the cutter is exchanged, an electromagnetic valve for loosening the cutter is reversed, the oil inlet of the oil cylinder end cover 31 is connected with an oil return inlet, and the whole broach mechanism moves backwards to tighten the cutter under the combined action of the spring force of a disengaging spring 26 on an oil cylinder body 27 and the spring force of a butterfly spring 23 on the cutter loosening rod 21, so that automatic cutter loosening and clamping actions are completed. Note that a clearance of about 2mm is formed between the top of the loose shank 21 and the end face of the movable piston 29 after tightening the cutter, so that the cutter head spindle 4 is ensured not to interfere when rotating.
When the automatic angle indexing is carried out in the embodiment, an oil cylinder on a machine tool cutter connecting plate pushes a cutter head pull nail 7 on the cutter head connecting plate 8 downwards to move downwards for 7-8mm, a positioning fluted disc 59 is separated from the positioning fluted disc on the machine tool cutter connecting plate, the cylindrical surface on the cutter head pull nail 7 still keeps orientation with the machine tool cutter connecting plate and cannot rotate relatively, a gear ring on the transmission shaft 1 is meshed with the orientation gear ring on the connecting plate 58 again, a cutter head spindle is locked and cannot rotate, a positioning conical surface on the positioning guide key 52 is still in a separated state with a positioning support 54, when the machine tool spindle rotates for a certain angle according to the processing requirement, the transmission shaft 1, a right-angle cutter head body 6, the cutter head spindle and the like relatively rotate for a certain angle with the cutter head connecting plate 8, after the indexing rotation angle is completed, the oil cylinder on the machine tool cutter head connecting plate of the embodiment moves upwards under the upward tensioning action to be attached with the cutter head connecting plate of the machine tool, the gear ring on the transmission shaft 1 moves downwards for a certain distance to be separated from the orientation gear ring on the connecting plate 58, the positioning fluted disc 59 is positioned and attached to the positioning fluted disc on the machine tool cutter head connecting plate again, and the positioning fluted disc on the machine tool cutter head connecting plate is automatically positioned and attached to the cutter head connecting plate, and the automatic angle indexing is completed. When the multi-channel rotary pipeline mechanism works, the upper ends of the quick-inserting joint 71, the loose cutter quick-changing joint 81 and the cooling quick-changing joint 82 on the milling head connecting plate 8 are connected with corresponding air blowing, oil cylinder hydraulic tightness cutters and cooling water pipe interfaces on the machine tool connecting plate, the lower ends of the quick-inserting joint, the cooling quick-changing joint and the cooling water pipe interfaces are connected with corresponding pipelines of the multi-channel fixing sleeve 56, and hydraulic pressure oil is conveyed to the loose cutter oil cylinder through the multi-channel fixing sleeve 56, the multi-channel rotary shaft 75, the right-angle milling head body 6, the oil cylinder end cover 31 and other parts, so that automatic loose cutter control is realized. The air blowing pipeline is transmitted to the conical surface of the main shaft through the multichannel fixed sleeve 56, the multichannel rotary shaft 75, the right-angle milling head body 6, the oil cylinder end cover 31, the movable piston 29, the loose cutter bar 21, the broach claw assembly 20, the milling head main shaft 4 and the like, so that the automatic cleaning air blowing control is realized. The high-pressure cooling liquid is sprayed onto the workpiece through the multi-channel fixing sleeve 56, the multi-channel rotating shaft 75, the right-angle milling head body 6, the front end cover 80, the front flange cover 78 and the like, so that automatic cooling control of the processing is realized. Note that the axial displacement of the multi-channel rotary shaft 75 and the multi-channel fixed sleeve 56 is controlled within a gap of 0.015-0.03 mm, the joint end surface is matched and ground, the damping cannot be excessively large during indexing of the automatic milling head, and the rotation torque is controlled within 300n.m, so that the spindle motor can be used normally. The automatic right-angle milling head device is used for realizing the processing of automatically converting a vertical main shaft of a machine tool into a horizontal main shaft, and the embodiment is generally arranged on a vertical main shaft square ram of the machine tool and can perform the functions of horizontal shaft transmission of the automatic milling head, rotation angle indexing of the automatic milling head, automatic clamping of a cutter, automatic cleaning and blowing of a cutter joint surface, automatic cooling of a cooling pipeline and the like. The embodiment has the characteristics of compact structure, reasonable distribution of mechanisms, high indexing accuracy, high rotation speed and simple maintenance.
The present examples are given by way of illustration and are not intended to be limiting. Other variations or modifications of the above description will be apparent to those of ordinary skill in the art, and it is not necessary or exhaustive of all embodiments, and obvious variations or modifications are intended to be within the scope of the present embodiments.
Claims (1)
1. The automatic right-angle milling head device is characterized by comprising a transmission mechanism, an automatic broach mechanism, an automatic indexing and orienting mechanism and a multi-channel rotary pipeline mechanism; the transmission mechanism comprises a transmission shaft (1), a bevel gear shaft (2), a support bearing (3), a milling head main shaft (4), a main shaft rear bearing (5), a right-angle milling head body (6), a milling head blind rivet (7), a front bearing end cover (9), a main shaft flange plate (11), a labyrinth gland (10), a bevel gear (12) and a main shaft front bearing (13), wherein the transmission shaft (1) is connected with the bevel gear shaft (2) through a precise spline, and the bevel gear shaft (2) is connected with the milling head main shaft (4) through the bevel gear (12); the automatic broach mechanism comprises a broach claw assembly (20), a broach bar (21), a retainer ring (22), a butterfly spring (23), a lock nut (24), a broach adjusting pad (25), a disengaging spring (26), an oil cylinder body (27), a first rotary sealing ring (28), a movable piston (29), a second rotary sealing ring (30) and an oil cylinder end cover (31), wherein the first rotary sealing ring (28) and the second rotary sealing ring (30) are arranged in a groove of the movable piston (29), the butterfly spring (23) and the retainer ring (22) are sleeved on the broach bar (21) and fixed through the lock nut (24), the front end of the butterfly spring (23) is provided with the retainer ring (22), the movable piston (29) is arranged in the oil cylinder body (27), the disengaging spring (26) connected with the movable piston (29) is arranged in the oil cylinder body (27), the broach claw assembly (20) and the cutter bar assembly (21) are arranged in the milling head (4), the broach bar assembly (21) is connected with the milling head (4) through threads, the oil cylinder body (27) is provided with an oil cylinder end cover (31); the automatic indexing and orienting mechanism comprises a milling head connecting plate (8), a positioning guide key (52), a movable pin shaft (53), a positioning support (54), a fixing screw (55), a multi-channel fixing sleeve (56), a fixing pressing plate (57), a connecting disc (58), a positioning fluted disc (59), a sliding pin shaft (60), a compression spring (61) and a telescopic spring (64), wherein the positioning guide key (52) is sleeved on the milling head connecting plate (8), and the fixing pressing plate (57) is pressed on the positioning guide key (52) and is fixed with the milling head connecting plate (8) through the fixing screw; the movable pin shaft (53) is sleeved in a hole of the milling head connecting plate (8), a compression spring (61) is arranged on the lower end surface of the movable pin shaft (53), a sliding pin shaft (60) is fixed on the positioning guide key (52), and the positioning support (54) is fixed on the connecting plate (58) through a fixing screw (55); the upper end of the transmission shaft (1) is connected with a telescopic spring (64), the other end of the telescopic spring (64) is fixed on a spring seat, and the positioning fluted disc (59) is fixed on the connecting disc (58) through a screw; the multi-channel rotary pipeline mechanism comprises a quick-plug connector (71), a third rotary sealing ring (74), a multi-channel rotary shaft (75), a first adjusting pad (76), an O-shaped sealing ring (77), a second adjusting pad (79), a front flange cover (78), a loose knife quick-change connector (81) and a cooling quick-change connector (82), wherein the multi-channel rotary shaft (75) is sleeved in a multi-channel fixed sleeve (56) and connected with a connecting disc (58) through screws, the multi-channel fixed sleeve (56) is provided with an inner cavity step structure corresponding to the multi-channel rotary shaft (75), the quick-plug connector (71) is arranged on a milling head connecting plate (8), the multi-channel fixed sleeve (56) is internally provided with an orifice communicated with the milling head connecting plate (8), the quick-plug connector (71), the loose knife quick-change connector (81) and the cooling quick-change connector (82), the multi-channel fixed sleeve (56) is internally provided with a second adjusting pad (79) in an orifice channel communicated with a front bearing end cover (9), the multi-channel fixed sleeve (56) is internally provided with an orifice corresponding to the multi-channel fixed sleeve (56), the first adjusting pad (76) is provided with an annular groove (77) on the surface of the multi-channel fixed sleeve (76), the multi-channel milling head comprises a multi-channel rotating shaft (75), wherein a third rotating sealing ring (74) is arranged on the outer circular surface of each multi-channel rotating shaft (75) and positioned on the upper side and the lower side of an orifice of each multi-channel fixed sleeve, the lower end of each multi-channel rotating shaft (75) is connected with a right-angle milling head body (6), a bevel gear shaft (2) is connected with the multi-channel rotating shafts (75) through a support bearing (3), a milling head main shaft (4) is connected with the right-angle milling head bodies (6) through a main shaft rear bearing (5), the milling head main shaft (4) is connected with a front bearing end cover (9) through a main shaft front bearing (13), a front flange cover (78) is arranged at the front end of each front bearing end cover (9), milling head connecting plates (8) are provided with milling head broaches (7), main shaft flange discs (11) connected with the front bearing end covers (9) are arranged at the ends of the milling head main shaft main shafts (4), labyrinth seal sleeves (10) positioned at the two ends of the main shaft front bearing end covers (13), and a quick-change coupling cutter (81) are arranged on the milling head plates (8). After the cutter is tensioned, a gap of 2mm is formed between the top of the loose cutter bar (21) and the end face of the movable piston (29); the axial movement amount of the multi-channel rotating shaft (75) and the multi-channel fixing sleeve (56) is 0.015-0.03 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN110883592B (en) * | 2019-12-02 | 2021-04-20 | 大连理工大学 | Honeycomb sealing structure knife handle for hollow conveying of liquid nitrogen |
| CN111421149B (en) * | 2020-05-21 | 2021-08-24 | 安徽津野数控科技有限公司 | Gear type milling machine spindle |
| CN112247231B (en) * | 2020-10-15 | 2022-11-11 | 航天科工哈尔滨风华有限公司 | Lengthened angle milling head device of three-point positioning supporting structure |
| CN112589498A (en) * | 2020-12-10 | 2021-04-02 | 漳州东刚精密机械有限公司 | Gantry right-angle milling head capable of automatically rotating |
| CN114770147A (en) * | 2022-05-26 | 2022-07-22 | 沈阳机床(集团)有限责任公司 | Rotary table based on zero positioning and application thereof |
| CN116921750B (en) * | 2023-09-19 | 2024-01-12 | 通用技术集团沈阳机床有限责任公司 | Orthogonal milling head structure and assembly method |
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