CN104015081B - Walk scheming main shaft sliding sleeve and coordinate the locking mechanism of claw - Google Patents
Walk scheming main shaft sliding sleeve and coordinate the locking mechanism of claw Download PDFInfo
- Publication number
- CN104015081B CN104015081B CN201410254485.7A CN201410254485A CN104015081B CN 104015081 B CN104015081 B CN 104015081B CN 201410254485 A CN201410254485 A CN 201410254485A CN 104015081 B CN104015081 B CN 104015081B
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- China
- Prior art keywords
- sliding sleeve
- claw
- main shaft
- centre bore
- chuck
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- 210000000078 Claw Anatomy 0.000 title claims abstract description 64
- 238000010030 laminating Methods 0.000 claims abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 210000001847 Jaw Anatomy 0.000 description 2
- 241000013987 Colletes Species 0.000 description 1
- 230000003139 buffering Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
Abstract
The invention discloses a kind of walk scheming main shaft sliding sleeve coordinate claw locking mechanism, including main shaft；It is arranged on the push rod in the first centre bore rear end of main shaft；Being arranged on the chuck in the first centre bore front end of main shaft, chuck has the second centre bore vertically, and the second centre bore Inner Front End arranges chuck, and in the second centre bore, rear end arranges stage clip；It is arranged on the chuck nut of front-end of spindle；It is sleeved on the sliding sleeve of rear-end of spindle；The symmetrical pawl seat having upper and lower two grooves；What front end was arranged on push rod end pushes away circle；The claw of " L " shape, before and after this claw, two ends are respectively free end and driving end, and claw rotates and is arranged in groove, the outer surface laminating of free end and sliding sleeve, and driving end is positioned at and pushes away the rearward end of circle circle can be promoted to move axially.The invention has the beneficial effects as follows: the rigidity of total is preferable, is unlikely to deform, the advantage that the present invention also has simple in construction simultaneously.
Description
Technical field
The present invention relates to mechanical fitting field, particularly relate to a kind of walk scheming main shaft sliding sleeve coordinate claw locking mechanism.
Background technology
Walking in scheming in the market typically all uses pneumatic pinch, sliding sleeve is driven by cylinder, the clamping of material is realized with the cooperation of claw and sliding sleeve, main shaft tail end suit master jaw, claw rotates and is arranged on master jaw, axially simultaneously slot on push rod, the free end of claw moves on sliding sleeve, moving axially along push rod in the driving end of claw groove on push rod, owing to the dimensional accuracy of groove is not easy to control, process the most difficult, give assembling, debugging, maintenance brings inconvenience, in addition, push rod and main shaft after processing all will affect its integral rigidity, thus affect integrally-built rigidity.On the other hand, claw whole difference of height of its free end from unclamping to clamping is 4.2mm, data determine accordingly, sliding sleeve thickness must not exceed 4.2mm, and this results in when lathe clamping force is bigger than normal, it is easy to cause sliding sleeve to deform, have a strong impact on rigidity during material clamping, especially when wanted part is excessive, required clamping force is bigger, and such structure has a strong impact on machine tool capability.
Summary of the invention
It is an object of the invention to provide a kind of walk scheming main shaft sliding sleeve coordinate the locking mechanism of claw, solve the technological deficiency that push rod rigidity is less in prior art, be easily deformed.
For solving the problems referred to above, the technical solution used in the present invention is:
A kind of walk scheming main shaft sliding sleeve coordinate claw locking mechanism, have the main shaft of the first centre bore running through its two ends vertically；In being arranged on the first centre bore rear end of main shaft and the push rod that is axially movable；In being arranged on the first centre bore front end of main shaft and can by push rod promote axially-movable chuck, chuck has the second centre bore running through its two ends vertically, second centre bore Inner Front End arranges horn-like little in big rear end, the front end matched with chuck in the front end of chuck and the second centre bore, and in the second centre bore, rear end arranges stage clip；It is arranged on the front-end of spindle chuck nut for fixed chuck；It is sleeved on the sliding sleeve of rear-end of spindle；Symmetrical has upper and lower two pawl seats along its axial groove；What front end was arranged on push rod end pushes away circle；The claw of " L " shape, before and after this claw, two ends are respectively free end and driving end, and claw rotates and is arranged in groove, the outer surface laminating of free end and sliding sleeve, and driving end is positioned at and pushes away the rearward end of circle circle can be promoted to move axially.Claw is arranged on pawl seat by the present invention, it is provided in the end of push rod owing to pushing away circle, push rod can be promoted to move in main shaft vertically so the driving end of claw pushes away circle by promotion, and without slotting on push rod, whole push rod is more complete, and rigidity push rod more of the prior art is more guaranteed.On the other hand, because claw pushes away circle and push rod makes push rod promote chuck to travel forward, the centre bore of chuck front speaker shape matches with chuck, therefore chuck travels forward and makes chuck fastening material, because arranging stage clip in chuck, want unwound material, stage clip elongation recovers the original length and chuck and push rod is pushed back the most backward, not at extruding chuck at second centre bore front speaker shape of chuck, chuck unwound material, material is greatly reduced the most compared to existing technology retreat back and forth because of inertia the error caused, push away the use of circle and too increase contact area when claw promotes push rod, increase stability.
As a further improvement on the present invention, two grooves are installed one end of claws to run through pawl seat upper and lower；Claw protrudes into positive stop end towards the direction contrary with free end, and this positive stop end is positioned at the other end of groove.
Owing to two grooves run through the upper and lower of pawl seat in the one end installing claw, the other end will form a step, and this step coordinates positive stop end to be defined the rotational angle of claw, in the range of making the rotation of claw be in reasonably.
As a further improvement on the present invention, sliding sleeve includes sliding sleeve body, sliding sleeve body has the centre bore running through its two ends vertically, first active section, canned paragraph and reserved section are set on sliding sleeve body, reserved section is positioned at the end of sliding sleeve body, the two ends of the first active section are connected with reserved section and canned paragraph respectively, and the thickness of reserved section is not more than 4.2mm less than the thickness of canned paragraph and the thickness difference of reserved section and canned paragraph.
As a further improvement on the present invention, the thickness of reserved section is 0～6mm, and the thickness of active section is 4～10mm, and the outer surface of First Transition section is 30 °～40 ° with the axis angle of sliding sleeve body.
As a further improvement on the present invention, the second changeover portion is set between First Transition section and active section.
As a further improvement on the present invention, the second changeover portion outer surface is 5 °～15 ° with the angle of sliding sleeve body axis.
In the end of sliding sleeve, reserved section is set, reserved section it is positioned at when claw unclamps, just can be in the case of ensureing that the claw whole difference of height of the process from releasing orientation to clamped condition is less than 4.2mm, increase the thickness of sliding sleeve active section, the thickness of active section increases, and only need to convert the thickness of reserved section accordingly, makes the one-tenth-value thickness 1/10 of the active section difference with the one-tenth-value thickness 1/10 of reserved section less than or equal to 4.2mm, the thickness of active section increases, and also increases the rigidity of sliding sleeve, solves the technological deficiency being easily deformed.The outer surface of First Transition section is 30 °～40 ° with the axis angle of sliding sleeve body, in conjunction with the setting of reserved section, solves claw impetus and promotes the distance problem of push rod.Surrender, in order to solve claw, the problem that place's stress is bigger with active section in the first excessive face, second changeover portion of 5 °～15 ° is set, play the effect of buffering, also protection frame for movement is played a role.
In sum, the invention has the beneficial effects as follows: the rigidity of total is preferable, is unlikely to deform, the advantage that the present invention also has simple in construction simultaneously.
Accompanying drawing explanation
The structural representation of Fig. 1 present invention.
Fig. 2 reacts the structural representation of sliding sleeve in the present invention.
Fig. 3 is the partial enlarged drawing in Fig. 2 at A.
Fig. 4 reacts the structural representation of claw in the present invention.
Fig. 5 is the structural representation reacting median claw seat of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described further.
Scheming main shaft sliding sleeve of walking as shown in Figure 1 coordinates the locking mechanism of claw, including the main shaft 1 having the first centre bore running through its two ends vertically；In being arranged on the first centre bore rear end of main shaft 1 and the push rod 2 that is axially movable；In being arranged on the first centre bore front end of main shaft 1 and the chuck 8 of axially-movable can be promoted by push rod 2, chuck 8 has the second centre bore running through its two ends vertically, second centre bore Inner Front End arranges chuck 9(standard component, it it is prior art, commercially can buy according to required model) and horn-like little in rear end big with the front end that chuck 9 matches in the front end of the second centre bore, in second centre bore, rear end arranges stage clip 10, the rear end diameter of the second centre bore is less than middle part and anterior diameter, the two ends of stage clip 10 are respectively held against rear end and the rear end of chuck 9 of the second centre bore；It is arranged on main shaft 1 front end chuck nut 11 for fixed chuck 9, chuck nut 11 is installed together by screw thread pair with main shaft 1 outer surface, the leading section of chuck nut 11 is the circular hole matched with chuck 9, and the front end of chuck 9 is arranged in the circular hole of chuck nut 11 front end, with fixed chuck 9；It is sleeved on the sliding sleeve 3 of main shaft 1 rear end；Symmetrical has upper and lower two pawl seat 4(along its axial groove 5 as shown in Figure 5)；What front end was arranged on push rod 2 end pushes away circle 6；The claw 7 of " L " shape, before and after this claw 7, two ends are respectively free end 71 and driving end 72, and claw 7 rotates and is arranged in groove 5, the outer surface laminating of free end 71 and sliding sleeve 3, and driving end 72 is positioned at and pushes away the rearward end of circle 6 circle 6 can be promoted to move axially.
As shown in Figures 2 and 3, sliding sleeve 3 includes sliding sleeve body 31, sliding sleeve body 31 has the centre bore 32 running through its two ends vertically, First Transition section 33, active section 34 and reserved section 35 are set on described sliding sleeve body 31, described reserved section 35 is positioned at the end of sliding sleeve body 31, the two ends of First Transition section 33 are connected with reserved section 35 and active section 34 respectively, and the thickness of reserved section 35 is not more than 4.2mm less than the thickness of active section 34 and the thickness difference of reserved section 35 and active section 34.The thickness of reserved section 35 is 0～6mm, and the thickness of active section 34 is 4～10mm, and the outer surface of First Transition section 33 is 30 °～40 ° with the axis angle of sliding sleeve body 31.Arranging the second changeover portion 36 between described First Transition section 33 and active section 34, the second changeover portion 36 outer surface is 5 °～15 ° with the angle of sliding sleeve body 31 axis.
For obtaining optimal implementation result, in embodiments of the invention, the thickness of reserved section 35 takes 4mm, the thickness of active section 34 takes 8mm, the outer surface of First Transition section 33 takes 35 ° with the axis angle of sliding sleeve body 31, second changeover portion 36 outer surface is 10 ° with the angle of sliding sleeve body 31 axis, the length of reserved section 35 takes 8mm, the horizontal length of First Transition section 33 takes 7mm, the thickness of active section 34 is 8-4=4mm with the thickness difference of reserved section 35, less than the maximum difference of height 4.2mm that claw 7 is whole from unclamping to clamping.
Claw 7 rotation is achieved in that in being arranged on pawl seat 4 and has two circular holes being perpendicular to groove 5 on pawl seat 4, on claw 7, correspondence also has circular hole, claw 7 is placed in groove 5, making the through hole on pawl seat 4 and the through hole on claw 7 is between two circular holes on pawl seat 4 of the circular hole on the setting of straight line and claw 7, with a pin through three circular holes, pin two ends are screwed the position of pin, anti-shotpin is meeting radial-play when main shaft runs up, it is achieved rotate in the claw 7 groove 5 on pawl seat 4.
nullSuch as Fig. 1，In the present invention，When claw 7 unclamps, its free end 71 is positioned in reserved section 35，By with cylinder (not shown in figure，Itself and be prior art with the connected mode of sliding sleeve 8) drive sliding sleeve 8 rearward movement，Claw 7 is around rotation of shipping and reselling on another market，The free end 71 of claw 7 is by being clipped on active section 34 after First Transition section 33 and the second changeover portion 36 and moving ahead gently on active section 34，Meanwhile，The driving end 72 of claw 7 pushes away circle 6 and travels forward，The rear end of push rod 2 it is arranged on owing to pushing away the front end of circle 6，So push rod 2 is moved axially forwards together，Push rod travels forward and promotes chuck 8 to be moved axially forwards in the first centre bore，Horn-like because to be big rear end, front end little the second centre bore front end of chuck 8 again，During so chuck 8 travels forward，Chuck 9 front end is inwardly extruded，Material in clamping collet 9.In the process, when claw 7 turns to the maximum magnitude of regulation, the step that the positive stop end 73 of claw 7 rear end is formed by groove 5 blocks, and makes claw 7 further not rotate towards same direction.When wanting unwound material, air cylinder driven sliding sleeve 8 is towards the direction motion in opposite direction with preceding movements, the motion on sliding sleeve 3 outer surface of the free end 71 of claw 7 is in opposite direction with aforementioned, the driving end of claw 7 pushes away circle 6 the most further along simultaneously, stage clip 10 in chuck 8 restores to the original state, push rod 2 is promoted backward by stage clip 10 with pushing away circle 6, return to original state, due to chuck 8 rearward movement, the front end of its centre bore no longer extrudes chuck 9, chuck 9 front end reverts to the state being extruded, and unclamps clamped material.
Arranging the second excessive face 36, claw 7 is more light by First Transition section 33 and the second changeover portion 36, will not be because of stress bigger damage claw 7.
Be not specifically noted in the present invention is prior art, and should be understood that the heretofore described case that is embodied as is only the preferable case study on implementation of the present invention, is not used for limiting the practical range of the present invention.The most all equivalence changes made according to the content of scope of the present invention patent and modification, all should be used as the technology category of the present invention.
Claims (5)
1. the locking mechanism walking scheming main shaft sliding sleeve cooperation claw, it is characterised in that: include
Have the main shaft (1) of the first centre bore running through its two ends vertically；
In being arranged on the first centre bore rear end of main shaft (1) and the push rod (2) that is axially movable；
In being arranged on the first centre bore front end of main shaft (1) and can by push rod (2) promote axially-movable chuck (8), chuck
(8) having vertically and run through second centre bore at its two ends, the second centre bore Inner Front End arranges chuck (9) and the second centre bore
Horn-like little in the big rear end, front end matched with chuck (9) in front end, in the second centre bore, rear end arranges stage clip (10)；
It is arranged on main shaft (1) front end chuck nut (11) for fixed chuck (9)；
It is sleeved on the sliding sleeve (3) of main shaft (1) rear end；
Symmetrical has upper and lower two pawl seats (4) along its axial groove (5)；
What front end was arranged on push rod (2) end pushes away circle (6)；
The claw (7) of " L " shape, before and after this claw (7), two ends are respectively free end (71) and driving end (72), claw
(7), in rotation is arranged on groove (5), the outer surface laminating of free end (71) and sliding sleeve (3), driving end (72) is positioned at
The rearward end pushing away circle (6) can promote circle (6) to move axially, and claw (7) is convex towards the direction contrary with free end (71)
Going out into positive stop end (73), this positive stop end (73) is positioned at the other end of groove (5)；Two grooves (5) install claw (7)
To run through pawl seat (4) upper and lower in one end.
The most according to claim 1 walk scheming main shaft sliding sleeve coordinate claw locking mechanism, it is characterised in that: sliding sleeve (3)
Including sliding sleeve body (31), sliding sleeve body (31) has the centre bore (32) running through its two ends, sliding sleeve body (31) vertically
On the first active section (33), canned paragraph (34) and reserved section (35) are set, reserved section (35) is positioned at sliding sleeve body (31)
End, the two ends of the first active section (33) are connected with reserved section (35) and canned paragraph (34) respectively, reserved section (35)
Thickness be not more than 4.2mm less than the thickness difference of the thickness of canned paragraph (34) and reserved section (35) with canned paragraph (34).
The most according to claim 2 walk scheming main shaft sliding sleeve coordinate the locking mechanism of claw, it is characterised in that: reserved section (35)
Thickness be 0～6mm, the thickness of canned paragraph (34) is 4～10mm, the outer surface of the first active section (33) and sliding sleeve body
(31) axis angle is 30 °～40 °.
The most according to claim 3 walk scheming main shaft sliding sleeve coordinate claw locking mechanism, it is characterised in that: first work
Between section (33) and canned paragraph (34), the second active section (36) is set.
The most according to claim 4 walk scheming main shaft sliding sleeve coordinate claw locking mechanism, it is characterised in that: second work
Section (36) outer surface is 5 °～15 ° with the angle of sliding sleeve body (31) axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410254485.7A CN104015081B (en) | 2014-06-10 | Walk scheming main shaft sliding sleeve and coordinate the locking mechanism of claw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410254485.7A CN104015081B (en) | 2014-06-10 | Walk scheming main shaft sliding sleeve and coordinate the locking mechanism of claw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104015081A CN104015081A (en) | 2014-09-03 |
| CN104015081B true CN104015081B (en) | 2016-11-30 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201046507Y (en) * | 2007-05-15 | 2008-04-16 | 慈溪市掌起镇科生五金塑料厂 | Transmission means for lathe headstock |
| CN102476302A (en) * | 2010-11-22 | 2012-05-30 | 大连创达技术交易市场有限公司 | Intelligent numerical control machine tool clamping device |
| CN202591625U (en) * | 2012-04-28 | 2012-12-12 | 上海莱必泰精密机电有限公司 | Main shaft structure of automatic lathe |
| CN103008693A (en) * | 2012-12-10 | 2013-04-03 | 付艳丽 | Lathe spindle unit |
| CN203918587U (en) * | 2014-06-10 | 2014-11-05 | 南京建克机械有限公司 | Walk the locking mechanism that scheming main shaft sliding sleeve coordinates claw |
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201046507Y (en) * | 2007-05-15 | 2008-04-16 | 慈溪市掌起镇科生五金塑料厂 | Transmission means for lathe headstock |
| CN102476302A (en) * | 2010-11-22 | 2012-05-30 | 大连创达技术交易市场有限公司 | Intelligent numerical control machine tool clamping device |
| CN202591625U (en) * | 2012-04-28 | 2012-12-12 | 上海莱必泰精密机电有限公司 | Main shaft structure of automatic lathe |
| CN103008693A (en) * | 2012-12-10 | 2013-04-03 | 付艳丽 | Lathe spindle unit |
| CN203918587U (en) * | 2014-06-10 | 2014-11-05 | 南京建克机械有限公司 | Walk the locking mechanism that scheming main shaft sliding sleeve coordinates claw |
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