CN214489673U

CN214489673U - Automatic locking universal material clamping mechanism for multi-station milling cutter processing machine

Info

Publication number: CN214489673U
Application number: CN202022842500.3U
Authority: CN
Inventors: 王俊锋; 唐凌志; 李政; 王帅
Original assignee: Guangdong Ucan Robot Technology Co Ltd
Current assignee: Guangdong Ucan Robot Technology Co Ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-10-26
Anticipated expiration: 2030-11-30

Abstract

The utility model relates to the technical field of cutter processing equipment, in particular to an automatic locking universal material clamping mechanism for a multi-station milling cutter processing machine, which comprises a rotary workbench, a universal material clamping rotary structure and a gear elastic rotation driving structure, wherein the universal material clamping rotary structure comprises a universal material clamping device and a rotary driving device; the elastic rotation driving structure of the gear comprises a driving base and a first gear, and the elastic connecting piece is installed on the first gear. The precision requirement to the machine debugging is lower, realizes the grooved autogiration of milling cutter material stick, and finished product milling cutter's precision is high, the yields is high, can also realize the elastic engagement of gear, effectively avoids appearing hindering the tooth, improves gear engagement's precision, avoids appearing the condition of skidding, and transmission effect is good.

Description

Automatic locking universal material clamping mechanism for multi-station milling cutter processing machine

Technical Field

The utility model belongs to the technical field of the cutter processing equipment technique and specifically relates to indicate an automatic locking universal clamping mechanism for multistation milling cutter processing machine.

Background

The milling cutter material rod is fixedly inserted into the clamping mechanism in the milling process, the clamping mechanism is provided with a collet to clamp the milling cutter material rod, the traditional clamping mechanism adopts a rigid clamping mode for the milling cutter material rod, namely the clamped milling cutter material rod is not allowed to swing, the milling cutter material rod is installed and then is pressed by the pressing and holding mechanism, the rigid clamping mode has high precision requirement on machine debugging, the position error between the allowed milling cutter material rod and the pressing and holding mechanism is very small, otherwise, the milling cutter material rod is easily scratched when the milling cutter material rod is pressed, the wear of the collet is serious, or the machining precision does not reach the standard due to the large position error, the precision of the finished milling cutter is further reduced, the yield is reduced, and the modern production requirement cannot be met.

In the existing milling cutter processing equipment, the gears are all in rigid meshing, so that the gears are easy to damage, the gears are seriously abraded, the service life is short, and the maintenance cost of the processing equipment is high. And the traditional gear engagement precision is not high, the condition of skidding can appear, effective transmission can not be realized, and the transmission effect is poor.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide an automatic universal clamping mechanism of locking for multistation milling cutter processing machine, but the milling cutter material stick after pressing from both sides tight installation can swing, the required precision to the machine debugging is lower, realize the autogiration of milling cutter material stick fluting in-process, finished product milling cutter's precision is high, the yields is high, can also realize the elastic meshing of gear, effectively avoid appearing hindering the tooth, improve gear engagement's precision, the condition of avoiding appearing skidding, the transmission is effectual.

In order to solve the technical problem, the utility model discloses a following technical scheme:

an automatic locking universal material clamping mechanism for a multi-station milling cutter processing machine comprises a rotary worktable, a plurality of universal material clamping rotary structures and a plurality of gear elastic rotation driving structures; the universal material clamping and rotating structure comprises a universal material clamping device and a rotating driving device, the universal material clamping device comprises a central fixed block, a first moving piece and a second moving piece which are respectively and rotatably arranged at two ends of the central fixed block, the universal material clamping device comprises a first movable piece, a second movable piece, a central fixing block, a collet chuck sleeve piece, a collet chuck, an elastic pull rod piece, a universal material clamping device and a rotary driving device, wherein the first movable piece and the second movable piece are both of hollow structures, the first movable piece and the second movable piece are surrounded to form an accommodating space, the central fixing block is limited in the accommodating space, the first movable piece is provided with the collet chuck sleeve piece, the collet chuck sleeve piece is of a hollow structure, the collet chuck sleeve piece is movably provided with the collet chuck, the first movable piece is internally provided with the elastic pull rod piece, one end of the elastic pull rod piece elastically abuts against the first movable piece, the other end of the elastic pull rod piece is connected with the collet chuck, the collet chuck is used for clamping a milling cutter material rod, the rotary driving device is in driving connection with the second movable piece, and the rotary driving device is used for driving the universal material clamping device to rotate; the gear elastic rotation driving structure comprises a driving base and a first gear installed on the driving base in a rotating mode, an elastic connecting piece is installed at one end of the first gear, the elastic connecting piece is connected with a rotation driving piece, the rotation driving piece is used for driving the elastic connecting piece and the first gear to rotate, the first gear can rotate around the axial center line of the first gear and elastically move along the axial center line of the first gear, and the first gear is connected with a rotation driving device in an elastic rotation driving mode.

Furthermore, the elastic pull rod piece comprises a pull rod body movably mounted on the first movable piece and a flexible corrugated part fixedly mounted at one end of the pull rod body, the flexible corrugated part is abutted against the first movable piece, and one end, far away from the flexible corrugated part, of the pull rod body is connected with the collet.

Further, the flexible corrugated part comprises a flexible corrugated pipe and a locking ring connected to the flexible corrugated pipe, the locking ring is fixedly connected with the pull rod body, and one end of the flexible corrugated pipe, which is far away from the locking ring, is abutted against the first movable part.

Furthermore, the pull rod body is provided with a positioning rod mounting hole and a locking hole, the positioning rod mounting hole is provided with a rear positioning rod, the locking hole is movably provided with a locking piece, the locking piece is used for locking the rear positioning rod in the positioning rod mounting hole, the collet chuck is provided with a mounting hole, and one end, away from the locking piece, of the rear positioning rod extends into the mounting hole in a protruding manner; when the milling cutter charge bar and the collet chuck are clamped and mounted, one end of the milling cutter charge bar is inserted into the mounting hole and abutted against the rear positioning rod, and the radial length of the milling cutter charge bar in the mounting hole is adjusted by adjusting the radial length of the rear positioning rod in the mounting hole.

Furthermore, the second moving part is movably provided with a push-and-pull rod piece, the push-and-pull rod piece and the elastic pull rod piece are arranged correspondingly, the universal material clamping and rotating mechanism further comprises a push-and-pull rod piece driving device, the push-and-pull rod piece driving device comprises a driving body and a piston rod, the driving body is arranged on the piston rod, the end portion of the piston rod is arranged correspondingly to the end portion of the push-and-pull rod piece, and the push-and-pull rod piece driving device is used for driving the push-and-pull rod piece.

Furthermore, the universal material clamping rotating structure further comprises a protective cover and a limiting sleeve arranged on the protective cover, the protective cover and the limiting sleeve are both of a hollow structure, the second moving part is rotatably arranged on the limiting sleeve through a plurality of first bearings, the central fixing block, the first moving part and the second moving part are all arranged inside the limiting sleeve, and the universal material clamping device and the rotating driving device are all arranged inside the protective cover; the limiting sleeve is detachably provided with a collet sleeve limiting part which is of a hollow structure, the inside of the limiting sleeve is communicated with the inside of the collet sleeve limiting part, the collet sleeve limiting part is provided with a limiting through hole, and one end of the collet sleeve is exposed outside the protective cover through the limiting through hole.

Further, the rotary driving device comprises a worm wheel arranged on the second moving part and a worm meshed with the peripheral face of the worm wheel, a second gear is arranged at one end of the worm, provided with the second gear, extends to the position below the rotary workbench and is elastically meshed with the first gear, the first gear is used for driving the worm to rotate, and the worm wheel and the worm are used for driving the universal clamping device to rotate.

Further, drive base installs fixed external member, and fixed external member is hollow tube structure, and the driving shaft pole is installed to first gear, and the driving shaft pole sets up in fixed external member, is equipped with a plurality of second bearings between driving shaft pole and the fixed external member.

Furthermore, the elastic connecting piece comprises a flexible corrugated pipe and two locking rings, the two locking rings are respectively connected to two ends of the flexible corrugated pipe, one locking ring is fixedly connected with the driving shaft rod, and the other locking ring is fixedly connected with the output end of the rotary driving piece.

Furthermore, an elastic component is sleeved on the outer side of the elastic connecting piece, one end of the elastic component is abutted against the driving base, and the other end of the elastic component is abutted against the fixing sleeve piece; when the first gear moves elastically along the axial center line direction, the elastic connecting piece and the elastic component are compressed.

The utility model has the advantages that:

1. the utility model discloses a first moving part and second moving part rotate respectively and install in central fixed block both ends for the collet chuck can realize diversified slight swing, compress tightly the milling cutter stub bar in the assigned position C point of pressing and holding the mechanism, even if the position error of the position of collet chuck and C point is great, also can directly compress tightly the milling cutter stub bar in the assigned position C point of pressing and holding the mechanism, the milling cutter stub bar after pressing from both sides tight installation can suitably swing, consequently can not injure the milling cutter stub bar when compressing tightly, effectively protect the milling cutter stub bar, finished milling cutter's precision is high, the yields is high;

2. the error between the position of the collet chuck and the position of the C point at the designated position of the pressing and holding mechanism is allowed to be larger, so that the precision requirement on machine debugging is lower, the debugging operation is simple, the efficiency is high, the abrasion of the collet chuck can be reduced, and the service life of the collet chuck is prolonged;

3. the rotation driving device is in driving connection with the second movable piece, so that automatic rotation in the slotting process of the milling cutter material bar is realized, and the slotting precision of the milling cutter material bar is improved;

4. when in meshing, the rotary driving device is abutted against the first gear, the first gear retracts, the elastic connecting piece is compressed, and the first gear can elastically move, so that the elastic meshing of the gears can be realized, and the damage to the gears is effectively avoided;

5. because first gear can elastic movement, consequently, can effectively prevent conditions such as contact failure, wrong tooth contact, improve gear engagement's precision, avoid appearing the condition of skidding, the transmission is effectual.

Drawings

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

Fig. 2 is a schematic cross-sectional structure diagram of the universal material-clamping rotating structure of the present invention.

Fig. 3 is a schematic view of the three-dimensional structure of the universal material-clamping rotating structure of the present invention.

Fig. 4 is a schematic cross-sectional structure diagram of the universal material clamping device of the present invention.

Fig. 5 is a schematic view of a partially enlarged cross-sectional structure taken along the direction B-B in fig. 4.

Fig. 6 is a schematic view of a partial three-dimensional structure of the universal material clamping device of the present invention.

Fig. 7 is a schematic view of the overall three-dimensional structure of the universal material clamping device of the present invention.

Fig. 8 is another schematic cross-sectional structure diagram of the universal material clamping rotation structure of the present invention.

Fig. 9 is a schematic structural view of the collet, the pressing mechanism and the milling cutter material rod of the present invention.

Fig. 10 is a schematic structural view of the gear elastic rotation driving structure of the present invention.

Fig. 11 is a schematic structural diagram of points a, b, c and d of the milling cutter material rod of the present invention.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.

As shown in fig. 1 to 11, the present invention provides an automatic locking universal material clamping mechanism for a multi-station milling cutter processing machine, which comprises a rotary table 22, a plurality of universal material clamping rotary structures 80 and a plurality of gear elastic rotation driving structures 01; the universal material clamping and rotating structure 80 comprises a universal material clamping device 81 and a rotating driving device 82, the universal material clamping device 81 comprises a central fixed block 58, a first movable piece 59 and a second movable piece 60 which are respectively rotatably installed at two ends of the central fixed block 58, the first movable piece 59 and the second movable piece 60 are all hollow structures, an accommodating space 61 is defined by the first movable piece 59 and the second movable piece 60, the central fixed block 58 is limited in the accommodating space 61, a collet sleeve 62 is installed on the first movable piece 59, the collet sleeve 62 is of a hollow structure, a collet 56 is movably installed in the collet sleeve 62, an elastic pull rod piece 64 is installed in the first movable piece 59, one end of the elastic pull rod piece 64 elastically abuts against the first movable piece 59, the other end of the elastic pull rod piece 64 is connected with the collet 56, the collet 56 is used for clamping the milling cutter material rod 1, and the rotating driving device 82 is drivingly connected with the second movable piece 60, the rotary driving device 82 is used for driving the universal material clamping device 81 to rotate; gear elasticity rotates drive structure 01 and installs in the first gear 3 of drive base 2 including drive base 2 and rotation, and elastic connection spare 5 is installed to the one end of first gear 3, and elastic connection spare 5 is connected with rotates driving piece 6, rotates driving piece 6 and is used for driving about elastic connection spare 5 and first gear 3 and rotates, first gear 3 can rotate around its axial centerline and follow its axial centerline direction elastic movement, and first gear 3 rotates the drive with rotatory drive arrangement 82 elasticity and is connected. The rotary driving device 82 is in driving connection with the second movable part 60, and the rotary driving device 82 is used for driving the universal material clamping device 81 to rotate.

In practical application, the milling cutter material bar 1 needs to cut chip grooves, and for a multi-edge milling cutter, multiple grooving actions are needed, as shown in fig. 11, grooving is performed at a point a, a point b, a point c and a point d of the milling cutter material bar 1, after the grooving jig completes the grooving action on the point a, the rotary driving device 82 drives the second movable member 60 to rotate by a preset angle, so that the grooving jig corresponds to the point b, and then the grooving action is performed on the point b; and (4) sequentially finishing slotting the point a, the point b, the point c and the point d of the milling cutter material rod 1 according to the steps. Preferably, the rotary driving device 82 is a worm gear, the worm gear has a large transmission ratio, a compact structure, stable transmission, no noise and self-locking performance, can prevent reversion and can improve the slotting precision of the milling cutter material bar 1.

The collet 56 is provided with a mounting hole 57, when the milling cutter material rod 1 is replaced, the elastic pull rod member 64 is pressed to drive the mounting end of the collet 56 to be exposed out of the collet sleeve member 62, so that the mounting hole 57 of the collet 56 is expanded, the milling cutter material rod 1 is inserted into the mounting hole 57 of the collet 56, and the collet 56 is pulled back to the collet sleeve member 62 under the elastic pulling force of the elastic pull rod member 64, so that the fixed mounting of the milling cutter material rod 1 is realized.

The first movable piece 59 and the second movable piece 60 are respectively rotatably mounted at two ends of the central fixed block 58, so that the collet 56 can slightly swing in multiple directions, as shown in fig. 9, the milling cutter material rod can be pressed on a designated position C point of the pressing and holding mechanism 03, even if the position error between the position of the collet 56 and the position C point is large, the milling cutter material rod can be directly pressed on the designated position C point of the pressing and holding mechanism 03, and the milling cutter material rod 1 after clamping and mounting can swing properly, so that the milling cutter material rod 1 cannot be damaged during pressing, the requirement on the precision of machine debugging is low due to the fact that the position error between the position of the collet 56 and the position C point is allowed to be large, and the abrasion of the collet 56 can be reduced; the mechanism effectively prevents the milling cutter material rod from being scratched when being compressed, reduces the abrasion of the collet 56, and ensures high precision and yield of finished milling cutters.

The driving base 2 is arranged below the rotary workbench 22, when in meshing, the rotary driving device 82 is abutted against the first gear 3, the first gear 3 retracts, the elastic connecting piece 5 is compressed, and the first gear 3 can move elastically, so that the elastic meshing of the gears can be realized, and the teeth injury can be effectively avoided. Because first gear 3 can elastic movement, consequently, can ensure first gear 3 and the laminating of universal material device 81 of pressing from both sides all the time, effectively prevent conditions such as contact failure, wrong tooth contact, improve gear engagement's precision, avoid appearing the condition of skidding, the transmission is effectual.

In this embodiment, the resilient pull rod member 64 includes a pull rod body 65 movably mounted to the first movable member 59, and a flexible corrugated member 66 fixedly mounted to an end of the pull rod body 65, wherein the flexible corrugated member 66 abuts against the first movable member 59, and an end of the pull rod body 65 away from the flexible corrugated member 66 is connected to the collet 56. Specifically, the drawbar body 65 and the collet 56 are coaxially arranged, and the drawbar body 65 and the collet 56 are in threaded connection.

In this embodiment, the flexible corrugated member 66 includes a flexible corrugated tube 67 and a locking ring 68 connected to the flexible corrugated tube 67, the locking ring 68 is fixedly connected to the pull rod body 65, and an end of the flexible corrugated tube 67 away from the locking ring 68 abuts against the first movable member 59. Specifically, due to the fact that the elastic force of the common spring is insufficient, the elastic tensile force of the flexible corrugated pipe 67 is extremely strong, and the collet chuck 56 can be tightly pulled by the flexible corrugated pipe 67, the milling cutter charge bar 1 is firmly installed, and the stability and the reliability of installation of the milling cutter charge bar 1 are improved.

In this embodiment, the drawbar rod body 65 is provided with a positioning rod mounting hole 69 and a locking hole 70, the rear positioning rod 71 is mounted in the positioning rod mounting hole 69, a locking member 72 is movably mounted in the locking hole 70, the locking member 72 is used for locking the rear positioning rod 71 in the positioning rod mounting hole 69, the collet 56 is provided with a mounting hole 57, and one end of the rear positioning rod 71, which is far away from the locking member 72, protrudes into the mounting hole 57; when the milling cutter material rod 1 is clamped and mounted with the collet 56, one end of the milling cutter material rod 1 is inserted into the mounting hole 57 and is abutted against the rear positioning rod 71, and the radial length of the milling cutter material rod 1 in the mounting hole 57 is adjusted by adjusting the radial length of the rear positioning rod 71 in the mounting hole 57. Specifically, the positioning and mounting modes of the milling cutter material bar 1 and the collet 56 can adopt a front positioning mode and a rear positioning mode, the rear positioning rod 71 is used for realizing the rear positioning mode, the radial length of the milling cutter material bar 1 in the mounting hole 57 is further adjusted by adjusting the radial length of the rear positioning rod 71 in the mounting hole 57, so that the radial length of the milling cutter material bar 1 exposed outside the mounting hole 57 is kept consistent, when the lengths of the milling cutter material bars 1 in different batches are different, the radial length of the milling cutter material bar 1 exposed outside the mounting hole 57 is kept consistent by adjusting the rear positioning rod 71, and the precision and the yield of the finished milling cutter are high.

In this embodiment, the second movable member 60 is movably provided with a push rod member 73, the push rod member 73 is disposed corresponding to the elastic pull rod member 64, the universal material clamping and rotating mechanism further includes a push rod member driving device 85, the push rod member driving device 85 includes a driving body 86 and a piston rod 87 disposed on the driving body 86 in a driving manner, an end of the piston rod 87 is disposed corresponding to an end of the push rod member 73, and the push rod member driving device 85 is configured to drive the push rod member 73. Specifically, the piston rod 87 is extended to eject the ejection rod 73 in a specified direction, the flexible corrugated tube 67 is compressed, the collet 56 is ejected out of the collet sleeve 62, the milling cutter stub bar 1 can be replaced at the moment, and after the replacement and installation of the milling cutter stub bar 1 are completed, the flexible corrugated tube 67 can tightly pull the collet 56 under the action of elastic tension of the flexible corrugated tube 67, so that the milling cutter stub bar 1 is firmly installed, and the stability and reliability of the installation of the milling cutter stub bar 1 are improved.

In this embodiment, the universal material clamping rotating structure 80 further includes a protection cover 88 and a limit sleeve 89 installed on the protection cover 88, the protection cover 88 and the limit sleeve 89 are both hollow structures, the second moving member 60 is rotatably installed on the limit sleeve 89 through a plurality of first bearings 90, the center fixing block 58, the first moving member 59 and the second moving member 60 are all disposed inside the limit sleeve 89, and the universal material clamping device 81 and the rotary driving device 82 are all disposed inside the protection cover. Specifically, the protective cover 88 is used for protecting the internal structure of the universal material clamping and rotating mechanism and preventing dust and debris from entering. The provision of first bearing 90 enables second moveable member 60 to rotate relative to stop sleeve 89.

In this embodiment, the limiting sleeve 89 is detachably mounted with a collet kit limiting member 91, the collet kit limiting member 91 is a hollow structure, the inside of the limiting sleeve 89 is communicated with the inside of the collet kit limiting member 91, the collet kit limiting member 91 is provided with a limiting through hole 92, and one end of the collet kit 62 is exposed outside the protective cover 88 through the limiting through hole 92. Specifically, the collet sleeve limiting piece 91 is used for limiting the collet sleeve 62, so that the milling cutter material bar 1 is effectively prevented from being subjected to position deviation or angle deviation, the processing precision can be improved, and the collet sleeve limiting piece 91 can also protect the internal structure of the whole universal material clamping device 81.

In this embodiment, the rotation driving device 82 includes a worm wheel 83 mounted on the second movable member 60 and a worm 84 engaged with an outer peripheral surface of the worm wheel 83, one end of the worm 84 is provided with the second gear 21, one end of the worm 84 provided with the second gear 21 protrudes below the rotary table 22 and is elastically engaged with the first gear 3, the first gear 3 is used for driving the worm 84 to rotate, and the worm wheel 83 and the worm 84 are used for driving the universal material clamping device 81 to rotate. Specifically, a plurality of universal material clamping rotating structures 80 are arranged on the rotary worktable 22 in an annular array manner, the universal material clamping rotating structures 80 are used for installing a machined workpiece, the machined workpiece needs to rotate in the machining process, and the rotary worktable 22 can move in the vertical direction and also can rotate. A plurality of working procedures are required in the machining process, each universal material clamping rotating structure 80 corresponds to different machining procedures, as shown in fig. 1, the second gear 21 of the rotating driving device 82a is meshed with the first gear 3a, after the corresponding working procedure is completed, the rotating workbench 22 is moved and rotated by a preset angle, so that the rotating driving device 82b rotates to the position of the first gear 3a, the rotating driving device 82b is meshed with the first gear 3a, at the moment, the rotating driving device 82a is meshed with the first gear 3b, and by analogy, each universal material clamping rotating structure 80 is matched with each first gear 3 to act. First gear 3 separates with universal material revolution mechanic 80 is complete as the driving source, and first gear 3 keeps motionless, and this kind of design need not arrange various air feed power supply circuits on universal material revolution mechanic 80 that presss from both sides, is favorable to reciprocating and the rotation action of swivel work head 22 for the compact structure of complete machine does not have complicated circuit and can also the easy access.

In this embodiment, the driving base 2 is provided with a fixing sleeve 7, the fixing sleeve 7 is of a hollow tube structure, the first gear 3 is provided with a driving shaft rod 8, the driving shaft rod 8 is arranged in the fixing sleeve 7, and a plurality of second bearings 9 are arranged between the driving shaft rod 8 and the fixing sleeve 7. Specifically, the driving shaft lever 8 is rotatably connected with the fixed sleeve 7 under the action of the second bearing 9, and the rotary driving member 6 drives the driving shaft lever 8 and the elastic connecting member 5 to rotate, so as to drive the first gear 3 to rotate. The fixed sleeve 7 can enable the driving shaft lever 8 to rotate stably, deflection in the rotating process is prevented, and the driving effect is good.

In this embodiment, the elastic connection member 5 includes a flexible corrugated tube 10 and two locking rings 11, the two locking rings 11 are respectively connected to two ends of the flexible corrugated tube 10, one locking ring 11 is fixedly connected to the driving shaft 8, and the other locking ring 11 is fixedly connected to the output end of the rotary driving member 6. Specifically, because the elastic force of ordinary spring is not enough, and the elastic force of flexible bellows 10 is extremely strong, flexible bellows 10 can ensure the dynamics of first gear 3 meshing to and the resilience playback of first gear 3, make the rotation of first gear 3 firm, improve the stability and the reliability of first gear 3. The flexible corrugated pipe 10 ensures that the first gear 3 is always attached to the second gear 21 by utilizing the extremely strong elastic force of the flexible corrugated pipe, thereby effectively preventing the conditions of poor contact, staggered tooth contact and the like, improving the precision of gear engagement, avoiding the slipping condition and having good transmission effect.

In this embodiment, an elastic member 16 is sleeved outside the elastic connecting member 5, one end of the elastic member 16 abuts against the driving base 2, and the other end of the elastic member 16 abuts against the fixing sleeve 7; when the first gear 3 is elastically moved in the direction of the axial center line thereof, both the elastic connecting member 5 and the elastic member 16 are compressed. The resilient member 16 is preferably a spring. Specifically, elastic component 16 remains motionless when first gear 3 rotates, and elastic connection 5 can strengthen elastic connection 5's elastic force, assists flexible bellows 10, guarantees to reset for first gear 3 receives dual elastic force effect, ensures first gear 3 and laminates with second gear 21 all the time, effectively prevents the condition such as contact failure, wrong tooth contact, improves gear engagement's precision, avoids appearing the condition of skidding, and transmission effect is good.

All the technical features in the embodiment can be freely combined according to actual needs.

The above-mentioned embodiment is the utility model discloses the implementation scheme of preferred, in addition, the utility model discloses can also realize by other modes, any obvious replacement is all within the protection scope of the utility model under the prerequisite that does not deviate from this technical scheme design.

Claims

1. The utility model provides an automatic universal clamping mechanism of locking for multistation milling cutter processing machine, includes swivel work head, its characterized in that: the universal material clamping and rotating device also comprises a plurality of universal material clamping and rotating structures and a plurality of gear elastic rotation driving structures;

the universal material clamping and rotating structure comprises a universal material clamping device and a rotating driving device, the universal material clamping device comprises a central fixed block, a first moving piece and a second moving piece which are respectively and rotatably arranged at two ends of the central fixed block, the universal material clamping device comprises a first movable piece, a second movable piece, a central fixing block, a collet chuck sleeve piece, a collet chuck, an elastic pull rod piece, a universal material clamping device and a rotary driving device, wherein the first movable piece and the second movable piece are both of hollow structures, the first movable piece and the second movable piece are surrounded to form an accommodating space, the central fixing block is limited in the accommodating space, the first movable piece is provided with the collet chuck sleeve piece, the collet chuck sleeve piece is of a hollow structure, the collet chuck sleeve piece is movably provided with the collet chuck, the first movable piece is internally provided with the elastic pull rod piece, one end of the elastic pull rod piece elastically abuts against the first movable piece, the other end of the elastic pull rod piece is connected with the collet chuck, the collet chuck is used for clamping a milling cutter material rod, the rotary driving device is in driving connection with the second movable piece, and the rotary driving device is used for driving the universal material clamping device to rotate;

the gear elastic rotation driving structure comprises a driving base and a first gear installed on the driving base in a rotating mode, an elastic connecting piece is installed at one end of the first gear, the elastic connecting piece is connected with a rotation driving piece, the rotation driving piece is used for driving the elastic connecting piece and the first gear to rotate, the first gear can rotate around the axial center line of the first gear and elastically move along the axial center line of the first gear, and the first gear is connected with a rotation driving device in an elastic rotation driving mode.

2. The automatic locking universal clamping mechanism for the multi-station milling cutter processing machine according to claim 1, characterized in that: the elastic pull rod piece comprises a pull rod body movably arranged on the first movable piece and a flexible corrugated part fixedly arranged at one end of the pull rod body, the flexible corrugated part is abutted against the first movable piece, and one end, far away from the flexible corrugated part, of the pull rod body is connected with the collet chuck.

3. The automatic locking universal clamping mechanism for the multi-station milling cutter processing machine according to claim 2, characterized in that: the flexible corrugated part comprises a flexible corrugated pipe and a locking ring connected with the flexible corrugated pipe, the locking ring is fixedly connected with the pull rod body, and one end, far away from the locking ring, of the flexible corrugated pipe is abutted against the first movable part.

4. The automatic locking universal clamping mechanism for the multi-station milling cutter processing machine according to claim 3, characterized in that: the pull rod body is provided with a positioning rod mounting hole and a locking hole, the positioning rod mounting hole is provided with a rear positioning rod, the locking hole is movably provided with a locking piece, the locking piece is used for locking the rear positioning rod in the positioning rod mounting hole, the collet chuck is provided with a mounting hole, and one end of the rear positioning rod, far away from the locking piece, extends into the mounting hole; when the milling cutter charge bar and the collet chuck are clamped and mounted, one end of the milling cutter charge bar is inserted into the mounting hole and abutted against the rear positioning rod, and the radial length of the milling cutter charge bar in the mounting hole is adjusted by adjusting the radial length of the rear positioning rod in the mounting hole.

5. The automatic locking universal clamping mechanism for the multi-station milling cutter processing machine according to claim 1, characterized in that: the universal material clamping rotating mechanism further comprises a pushing rod piece driving device, the pushing rod piece driving device comprises a driving body and a piston rod, the driving body is arranged on the piston rod, the end portion of the piston rod is arranged corresponding to the end portion of the pushing rod piece, and the pushing rod piece driving device is used for driving the pushing rod piece.

6. The automatic locking universal clamping mechanism for the multi-station milling cutter processing machine according to claim 1, characterized in that: the universal material clamping and rotating structure further comprises a protective cover and a limiting sleeve arranged on the protective cover, the protective cover and the limiting sleeve are both of hollow structures, the second moving part is rotatably arranged on the limiting sleeve through a plurality of first bearings, the central fixed block, the first moving part and the second moving part are all arranged inside the limiting sleeve, and the universal material clamping device and the rotating driving device are all arranged inside the protective cover;

the limiting sleeve is detachably provided with a collet sleeve limiting part which is of a hollow structure, the inside of the limiting sleeve is communicated with the inside of the collet sleeve limiting part, the collet sleeve limiting part is provided with a limiting through hole, and one end of the collet sleeve is exposed outside the protective cover through the limiting through hole.

7. The automatic locking universal clamping mechanism for the multi-station milling cutter processing machine according to claim 1, characterized in that: the rotary driving device comprises a worm wheel arranged on the second moving part and a worm meshed with the peripheral face of the worm wheel, a second gear is arranged at one end of the worm, provided with the second gear, extends to the lower portion of the rotary workbench and is elastically meshed with the first gear, the first gear is used for driving the worm to rotate, and the worm wheel and the worm are used for driving the universal material clamping device to rotate.

8. The automatic locking universal clamping mechanism for the multi-station milling cutter processing machine according to claim 1, characterized in that: the drive base is provided with a fixed sleeve, the fixed sleeve is of a hollow tube structure, the first gear is provided with a drive shaft lever, the drive shaft lever is arranged in the fixed sleeve, and a plurality of second bearings are arranged between the drive shaft lever and the fixed sleeve.

9. The automatic locking universal clamping mechanism for the multi-station milling cutter processing machine according to claim 8, characterized in that: the elastic connecting piece comprises a flexible corrugated pipe and two locking rings, the two locking rings are respectively connected to two ends of the flexible corrugated pipe, one locking ring is fixedly connected with the driving shaft rod, and the other locking ring is fixedly connected with the output end of the rotary driving piece.

10. The automatic locking universal clamping mechanism for the multi-station milling cutter processing machine according to claim 1, characterized in that: an elastic component is sleeved on the outer side of the elastic connecting piece, one end of the elastic component is abutted against the driving base, and the other end of the elastic component is abutted against the fixed sleeve; when the first gear moves elastically along the axial center line direction, the elastic connecting piece and the elastic component are compressed.