CN208084137U - A kind of quick centering and clamping mechanism of big stroke - Google Patents
A kind of quick centering and clamping mechanism of big stroke Download PDFInfo
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- CN208084137U CN208084137U CN201820580324.0U CN201820580324U CN208084137U CN 208084137 U CN208084137 U CN 208084137U CN 201820580324 U CN201820580324 U CN 201820580324U CN 208084137 U CN208084137 U CN 208084137U
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- hand
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Abstract
The utility model belongs to clamp art, more particularly, to a kind of big quick centering and clamping mechanism of stroke, includes main shaft, is arranged with two-way bearing, baffle ring seat, unilateral bearing and sealing ring from bottom to up.It is arranged with cam one-way shaft bearing outside unilateral bearing and sealing ring, unilateral bearing inner ring is connect with main shaft, and outer ring is connect with cam one-way shaft bearing, and shell is set in outermost, and two-way bearing inner race is connect with main shaft, outer ring and cage connection.Cam one-way shaft bearing upper surface be equipped with arc chute, arc chute right end compared with its left end with a distance from cam one-way shaft bearing central axis closer to.Hand grapple structure is arranged in cover top portion, including hand grasps fixed board, hand is grabbed, connecting plate, spring pushing block, spring, spring block, slide bar, and slide bar is flexibly connected with arc chute, and hand, which is grabbed, is equipped with arc-shaped collet.The utility model can quick despatch workpiece, improve working efficiency, the diameter range that can clamp workpiece is larger, and applicability is wide, effectively reduces production cost.
Description
Technical field
The utility model belongs to clamp art, more particularly, to a kind of big quick centering and clamping mechanism of stroke.
Background technology
Grinding machine is the lathe for carrying out grinding to workpiece surface using grinding tool, and most of grinding machine is to use high speed rotation
Grinding wheel carry out grinding, a small number of is processed using other grinding tools such as oilstone, abrasive band and free abrasive, such as honing
Machine, superfinisher, abrasive belt grinding machine, grinder and polishing machine etc..
Grinding machine in actual use, people are often clamped grinding with heart carrier to workpiece, mainly utilize
Bolt clamping workpiece on collet ring, but be directly clamped among on workpiece using bolt, when being ground to workpiece, workpiece will by compared with
Big resistance, is susceptible to the problem of workpiece is scratched by bolt, and the usual profit of people screws up with a wrench bolt at present, not only grasps
Make trouble and regular assembling-disassembling bolt be easy to cause the problem of bolt head wears, causes bolt that can not dismount, to influence
Grinding machine collet service life.Traditional heart carrier can only adjust its size that can be gripped in smaller range, and limitation is larger,
Specification differs larger workpiece and needs to change fixture, and production cost is higher, and working efficiency is low.
Utility model content
The purpose of this utility model is the deficiencies in the prior art place to be solved, and offer one kind is applied widely, clamps
The quickly quick centering and clamping mechanism of big stroke.
The purpose of this utility model is solved by following technical proposal：
A kind of quick centering and clamping mechanism of big stroke, it is characterised in that：Include main shaft, shell, two-way bearing, baffle ring
Seat, cam one-way shaft bearing, unilateral bearing, sealing ring and multiple hand grapple structures；
Cylindrical hole is offered inside the main shaft, and two-way bearing, baffle ring are arranged with successively from bottom to up on the outside of main shaft
Seat, unilateral bearing and sealing ring；The unilateral bearing and sealing ring outer sheath are equipped with cam one-way shaft bearing, unilateral bearing inner ring
It is connect with main shaft, unilateral bearing outer ring is connect with cam one-way shaft bearing；The shell is set in two-way bearing, baffle ring seat, convex
It takes turns on the outside of one-way shaft bearing, two-way bearing inner race is connect with main shaft, and two-way bearing outer ring and cage connection, cover top portion center are opened
Equipped with circular through hole；It is the main-shaft core axis, housing central axis, two-way bearing central axis, baffle ring seat central axis, convex
Wheel one-way shaft bearing central axis, unilateral bearing central axis, sealing ring central axis coincide；
The cam one-way shaft bearing upper surface cross section is circle, and cam one-way shaft bearing upper surface is uniformly provided with a plurality of
Arc chute, arc chute right end is less than arc chute left end at a distance from cam one-way shaft bearing central axis and cam is unidirectional
The distance of bearing block central axis；
The hand grapple structure is arranged in cover top portion, and hand grapple structure includes that hand grasps fixed board, hand is grabbed, connecting plate, spring push away
Block, spring, spring block and slide bar；The connecting plate includes horizontally disposed transverse slat and is vertically set on vertical on the right side of transverse slat
Plate, the hand grasp fixed board and are fixed on the right side of stringer board, and hand, which grasps, grabs at the top of fixed board equipped with hand, hand grasp be fixed on fixed board prolong it is perpendicular
To the slide bar of setting, slide bar bottom is in arc chute right end and is flexibly connected with arc chute histogram, the shell upper table
Face, which is radially offered, grabs with the matched sliding slot of hand grapple structure, the hand equipped with arc-shaped collet, the arc-shaped collet court
Housing central axis direction is arranged；The spring pushing block is fixed on transverse slat bottom surface left rear side, and spring horizontal is arranged and vertically fixes
On front side of spring pushing block, be equipped with spring block on front side of spring, upper surface of outer cover offer with the matched mounting groove of spring block,
Spring block is fixed in mounting groove.
Preferably, hand grapple structure described in the utility model is the hand grapple structure of adjustable crawl diameter, and hand grasps on fixed board
Surface is uniformly provided with the first ripple, and hand is grabbed lower surface and is equipped with and matched second ripple of the first ripple；The hand grasps fixed board
Upper surface vertically offers circular mounting hole, and hand, which is grabbed, vertically to be offered and the matched length of circular mounting hole
Bar shaped mounting hole, the strip mounting hole are through-hole, and the diameter of circular mounting hole and the width of strip mounting hole are equal, also wrap
Screw is included, the hand, which is grabbed, to be fixed on hand by the cooperation of screw and circular mounting hole, strip mounting hole and grasp on fixed board.
Preferably, the number of hand grapple structure described in the utility model is 2-4.
Preferably, main shaft described in the utility model is step main shaft, includes pedestal, first step, second step, the
Three steps, the pedestal, first step, second step, third step are annulus column cylindricality, and pedestal outer diameter is more than first step
Outer diameter, first step outer diameter be more than second step outer diameter, second step outer diameter be more than third outer diameter of step, base center axis,
First step central axis, second step central axis, third step central axis coincide.
Preferably, two-way bearing described in the utility model and baffle ring cover for seat are located at outside first step, unilateral bearing and sealing
Snare is located at outside third step, and cam unilateral bearing cover for seat is located at outside unilateral bearing, sealing snare and second step.
Preferably, described in the utility model further includes having the first clamp spring and the second clamp spring, first clamp spring and the second card
Spring is fastened on two-way bearing both ends.
Preferably, the utility model further includes having O-ring, and the O-ring is arranged in baffle ring seat and main shaft junction.
Preferably, the utility model further includes having third clamp spring and the 4th clamp spring, the third clamp spring and the 4th clamp spring point
It is not fastened on unilateral bearing both ends.
Preferably, the material of arc-shaped collet described in the utility model is wolfram steel.
Preferably, outer casing bottom described in the utility model is equipped with motor axis connection block.
Compared to the prior art the utility model has the characteristics that and advantageous effect：
1, when institute's workpieces processing is when being relatively large in diameter, hand is grabbed far from main-shaft core axis and is fixed on hand and grasps fixed board
On, when processed diameter of work is smaller, hand can be grabbed close to main-shaft core axis and be fixed on hand and grasp on fixed board, used
Before, hand can be adjusted according to the diameter of institute's converted products to grip in hand grasp position on fixed board, applied widely, adjustment mode letter
It is single, production cost is reduced while improving work efficiency.
2, shell is fixed with two-way bearing, and hand grapple structure is then fixed on cover top portion, cam one-way shaft bearing and one-way shaft
Fixation is held, the slide bar of hand grapple structure is then in the arc chute of cam one-way shaft bearing, by the cooperation of said mechanism, when double
To bearing rotation direction it is consistent with the usable rotational direction of individual event bearing when, hand grapple structure is in clamped condition, when two-way bearing
When rotation direction is opposite with the rotatable direction of unilateral bearing, hand grapple structure is in releasing orientation, it can be achieved that the quick of workpiece
Assembly and disassembly are pressed from both sides, processing efficiency is improved.
Description of the drawings
Fig. 1 is the utility model configuration schematic diagram.
Fig. 2 is the utility model internal structure schematic diagram.
Fig. 3 is the utility model main view schematic cross-sectional view.
Fig. 4 is the utility model main axle structure schematic diagram.
Fig. 5 is that the utility model hand grabs structural schematic diagram.
Specific implementation mode
The utility model is described in further details below in conjunction with attached drawing.
As shown in Figs. 1-3, a kind of quick centering and clamping mechanism of big stroke includes main shaft 1, shell 2, two-way bearing 3, gear
Ring support 4, cam one-way shaft bearing 5, unilateral bearing 6, sealing ring 7 and multiple hand grapple structures.2 bottom of shell is equipped with motor axis connection
Block 8 is used for and provides the motor axis connection of power.
Cylindrical hole 9 is offered inside main shaft 1, if workpieces processing is long to can be used for stretching into for workpiece, it can also be used to push up
Running through for needle, is accurately positioned workpieces processing.The outside of main shaft 1 be arranged with successively from bottom to up two-way bearing 3, baffle ring seat 4,
Unilateral bearing 6 and sealing ring 7.Unilateral bearing 6 and 7 outer sheath of sealing ring are equipped with cam one-way shaft bearing 5,6 inner ring of unilateral bearing
It is connect with main shaft 1,6 outer ring of unilateral bearing is connect with cam one-way shaft bearing 5.Shell 2 be set in two-way bearing 3, baffle ring seat 4,
5 outside of cam one-way shaft bearing, 3 inner ring of two-way bearing are connect with main shaft 1, and 3 outer ring of two-way bearing is connect with shell 2, and shell 2 pushes up
Portion center offers circular through hole 10.1 central axis of main shaft, 2 central axis of shell, 3 central axis of two-way bearing, baffle ring seat 4
Central axis, 5 central axis of cam one-way shaft bearing, 6 central axis of unilateral bearing, 7 central axis of sealing ring coincide.
5 upper surface cross section of cam one-way shaft bearing is circle, and 5 upper surface of cam one-way shaft bearing is uniformly provided with a plurality of arc
Shape sliding slot 11,11 right end of arc chute at a distance from 5 central axis of cam one-way shaft bearing be less than 11 left end of arc chute with it is convex
Take turns the distance of 5 central axis of one-way shaft bearing.
For the setting of hand grapple structure at 2 top of shell, hand grapple structure includes that hand grasps fixed board 24, hand grabs 12, connecting plate 13, spring
Pushing block 14, spring 15, spring block 16 and slide bar 17.Connecting plate 13 includes horizontally disposed transverse slat 18 and is vertically set on transverse slat
The stringer board 19 on right side, the hand grasp fixed board 24 and are fixed on 19 right side of stringer board, and hand grasps 24 top of fixed board and grabs 12 equipped with hand, and hand is grabbed
The slide bar 17 for prolonging vertical direction setting is fixed in fixed plate 24,17 bottom of slide bar is in 11 right end of arc chute and and arc
Sliding slot 11 is flexibly connected, and 2 upper surface of shell, which is radially offered, grabs and set on 12 with the matched sliding slot 21 of hand grapple structure, the hand
There is arc-shaped collet 22, which is arranged towards 2 central axial direction of shell.Spring pushing block 14 is fixed on 18 bottom of transverse slat
Face left rear side, spring 15 is horizontally disposed and is vertically fixed on 14 front side of spring pushing block, and 15 front side of spring is equipped with spring block 16, outside
2 upper surface of shell, which is offered, to be fixed on 16 matched mounting groove 23 of spring block, spring block 16 in mounting groove 23.Hand grapple
The number of structure can be set as 2-4 according to demand, to reach best gripping effect.
As shown in Figure 5, wherein hand grapple structure is the hand grapple structure of adjustable crawl diameter, and hand grasps 24 upper surface of fixed board
It is uniformly provided with the first ripple 26, hand is grabbed 12 lower surfaces and is equipped with and 26 matched second ripple 27 of the first ripple.Hand grasps fixed board
24 upper surfaces vertically offer circular mounting hole 28, and hand is grabbed vertically to be offered and 28 phase of circular mounting hole on 12
The strip mounting hole 29 of cooperation, the strip mounting hole 29 are through-hole, the diameter and strip mounting hole of circular mounting hole 28
29 width is equal, further includes having screw 30, and the hand grabs 12 by screw 30 and circular mounting hole 28, strip mounting hole 29
Cooperation be fixed on hand and grasp on fixed board 24.When institute's workpieces processing is when being relatively large in diameter, hand is grabbed 12 far from 1 central axis of main shaft
And be fixed on hand and grasp on fixed board 24, when processed diameter of work is smaller, hand can be grabbed to 12 close to 2 central axis of main shaft and consolidated
It is scheduled on hand to grasp on fixed board 24, grasped on fixed board 24 in hand before use, hand can be adjusted according to the diameter of institute's converted products and grab 12
Position, applied widely, adjustment mode is simple, and production cost is reduced while improving work efficiency.
As shown in figure 4, main shaft 1 is step main shaft 1, include pedestal 31, first step 32, second step 33, third
Step 34, the pedestal 31, first step 32, second step 33, third step 34 are annulus column cylindricality, and 31 outer diameter of pedestal is big
In 32 outer diameter of first step, 32 outer diameter of first step is more than 33 outer diameter of second step, and 33 outer diameter of second step is more than third step
34 outer diameters, 31 central axis of pedestal, 32 central axis of first step, 33 central axis of second step, 34 central shaft of third step
Line coincides.
As shown in figure 3, two-way bearing 3 and baffle ring seat 4 are set in outside first step 32, unilateral bearing 6 and sealing ring 7 are arranged
Outside third step 34, cam unilateral bearing cover for seat 5 is located at outside unilateral bearing 6,7 sets of sealing ring and second step 33.
Further include having the first clamp spring 35, the second clamp spring 36, O-ring 37, third clamp spring 38, the 4th clamp spring 39, the first clamp spring
35 and second clamp spring 36 be fastened on 3 both ends of two-way bearing, O-ring 37 is arranged in baffle ring seat 4 and 1 junction of main shaft, third clamp spring
38 and the 4th clamp spring 39 be fastened on 6 both ends of unilateral bearing respectively.
Based on above structure, shell 2 is fixed with two-way bearing 3, and hand grapple structure is then fixed on 2 top of shell, and cam is unidirectional
Bearing block 5 is fixed with unilateral bearing 6, and the slide bar 17 of hand grapple structure is then in the arc chute 11 of cam one-way shaft bearing 5.Bullet
When spring 15 is in normal condition, slide bar 17 is in the right end of arc chute 11,11 right end of arc chute and cam unilateral bearing
The distance of 5 central axis of seat is more than 11 left end of arc chute at a distance from 5 central axis of cam one-way shaft bearing, therefore, works as cunning
When bar 17 is in right end, hand is grabbed 12 nearest with a distance from 1 central axis of main shaft, and it is also nearest that more hands grab 12 distances, in grabbing
Tight state.And when effectively slide bar 17 being pushed to be slided to the left end of arc chute 11, hand grabs 12 and will be far from 1 central axis of main shaft,
The handling of workpiece then can be achieved.
During the work time, when needing to be processed workpiece, the rotation direction and unilateral bearing 6 of two-way bearing 3 can
The direction of rotation is consistent.Motor shaft drives shell 2 to rotate by motor axis connection block 8, and the drive of shell 2 is fixed on shell 2
The rotation of hand grapple structure be at the same time fixed on hand and grasp slide bar 17 on fixed board 24 and rotated with moving cam unilateral bearing seat 5,
Since the rotation direction of two-way bearing 3 is consistent with 6 rotatable direction of unilateral bearing at this time, hand grabs 12 and cam one-way shaft bearing
5 is opposing stationary, and slide bar 17 rests on always 11 right end of arc chute, and the clip-on workpiece of hand grapple structure is rotated and processed.
When needing workpiece loading and unloading, the rotation direction of two-way bearing 3 and 6 rotatable direction of unilateral bearing are on the contrary, motor
Axis drives shell 2 to rotate backward by motor axis connection block 8, and shell 2 drives the hand grapple structure rotation being fixed on shell 2,
Being fixed on the slide bar 17 that hand grasps on fixed board 24 will also move backward, and due to 6 not reversible movement of unilateral bearing, slide bar 17 is past
When moving left, cam one-way shaft bearing 5 will be fixed, and 17 band of slide bar starts to grab 12 toward the movement of 11 left end of arc chute simultaneously
Along sliding slot 21 far from 1 central axis of main shaft, it can be achieved that the handling of workpiece.
The utility model can quickly clamp workpiece and dismounting workpiece, greatly improve work efficiency, while can clamp workpiece
Diameter range it is larger, applicability is wide, effectively reduces production cost.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (10)
1. a kind of quick centering and clamping mechanism of big stroke, it is characterised in that：Include main shaft, shell, two-way bearing, baffle ring seat,
Cam one-way shaft bearing, unilateral bearing, sealing ring and multiple hand grapple structures；
Cylindrical hole is offered inside the main shaft, and two-way bearing, baffle ring seat, list are arranged with successively from bottom to up on the outside of main shaft
To bearing and sealing ring；The unilateral bearing and sealing ring outer sheath are equipped with cam one-way shaft bearing, unilateral bearing inner ring and master
Axis connection, unilateral bearing outer ring are connect with cam one-way shaft bearing；The shell is set in two-way bearing, baffle ring seat, cam list
On the outside of to bearing block, two-way bearing inner race is connect with main shaft, and two-way bearing outer ring and cage connection, cover top portion center offer
Circular through hole；The main-shaft core axis, housing central axis, two-way bearing central axis, baffle ring seat central axis, cam list
It coincides to bearing block central axis, unilateral bearing central axis, sealing ring central axis；
The cam one-way shaft bearing upper surface cross section is circle, and cam one-way shaft bearing upper surface is uniformly provided with a plurality of arc
Sliding slot, arc chute right end are less than arc chute left end and cam unilateral bearing at a distance from cam one-way shaft bearing central axis
The distance of seat central axis；
The hand grapple structure is arranged in cover top portion, and hand grapple structure includes that hand grasps fixed board, hand is grabbed, connecting plate, spring pushing block, bullet
Spring, spring block and slide bar；The connecting plate includes horizontally disposed transverse slat and the stringer board that is vertically set on the right side of transverse slat, described
Hand grasps fixed board and is fixed on the right side of stringer board, and hand, which grasps, grabs at the top of fixed board equipped with hand, and hand, which grasps to be fixed on fixed board, prolongs vertical direction
The slide bar of setting, slide bar bottom are in arc chute right end and are flexibly connected with arc chute, and the upper surface of outer cover is along diameter
To offer with the matched sliding slot of hand grapple structure, the hand, which is grabbed, is equipped with arc-shaped collet, and the arc-shaped collet is towards in shell
Heart axis direction is arranged；The spring pushing block is fixed on transverse slat bottom surface left rear side, and spring horizontal is arranged and is vertically fixed on spring
On front side of pushing block, spring block is equipped on front side of spring, upper surface of outer cover offers and the matched mounting groove of spring block, spring catch
Block is fixed in mounting groove.
2. the quick centering and clamping mechanism of big stroke according to claim 1, it is characterised in that：The hand grapple structure is adjustable
The hand grapple structure of section crawl diameter, hand grasp fixed board upper surface and are uniformly provided with the first ripple, and hand is grabbed lower surface and is equipped with and first wave
Matched second ripple of line；The hand grasps fixed board upper surface and vertically offers circular mounting hole, and it is perpendicular that hand grabs upper edge
Histogram to offer with the matched strip mounting hole of circular mounting hole, the strip mounting hole be through-hole, circular mounting hole
Diameter and strip mounting hole width it is equal, further include having screw, the hand is grabbed through screw and circular mounting hole, strip
The cooperation of shape mounting hole is fixed on hand and grasps on fixed board.
3. the quick centering and clamping mechanism of big stroke according to claim 1 or 2, it is characterised in that：The hand grapple structure
Number is 2-4.
4. the quick centering and clamping mechanism of big stroke according to claim 1 or 2, it is characterised in that：The main shaft is step
Formula main shaft includes pedestal, first step, second step, third step, the pedestal, first step, second step, third
Step is annulus column cylindricality, and pedestal outer diameter is more than first step outer diameter, and first step outer diameter is more than second step outer diameter, and second
Outer diameter of step is more than third outer diameter of step, base center axis, first step central axis, second step central axis, third
Step central axis coincides.
5. the quick centering and clamping mechanism of big stroke according to claim 4, it is characterised in that：The two-way bearing and baffle ring
Cover for seat is located at outside first step, and unilateral bearing and sealing ring are set in outside third step, and cam unilateral bearing cover for seat is located at unidirectionally
Outside bearing, sealing snare and second step.
6. the quick centering and clamping mechanism of big stroke according to claim 1 or 2, it is characterised in that：Further include having the first card
Spring and the second clamp spring, first clamp spring and the second clamp spring are fastened on two-way bearing both ends.
7. the quick centering and clamping mechanism of big stroke according to claim 1 or 2, it is characterised in that：Further include having O-ring,
The O-ring is arranged in baffle ring seat and main shaft junction.
8. the quick centering and clamping mechanism of big stroke according to claim 1 or 2, it is characterised in that：Further include having third card
Spring and the 4th clamp spring, the third clamp spring and the 4th clamp spring are fastened on unilateral bearing both ends respectively.
9. the quick centering and clamping mechanism of big stroke according to claim 1 or 2, it is characterised in that：The arc-shaped collet
Material be wolfram steel.
10. the quick centering and clamping mechanism of big stroke according to claim 1 or 2, it is characterised in that：The outer casing bottom is set
There is motor axis connection block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820580324.0U CN208084137U (en) | 2018-04-23 | 2018-04-23 | A kind of quick centering and clamping mechanism of big stroke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820580324.0U CN208084137U (en) | 2018-04-23 | 2018-04-23 | A kind of quick centering and clamping mechanism of big stroke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208084137U true CN208084137U (en) | 2018-11-13 |
Family
ID=64055630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820580324.0U Expired - Fee Related CN208084137U (en) | 2018-04-23 | 2018-04-23 | A kind of quick centering and clamping mechanism of big stroke |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208084137U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108637897A (en) * | 2018-04-23 | 2018-10-12 | 温岭市正大工业机器人有限公司 | A kind of quick centering and clamping mechanism of big stroke |
-
2018
- 2018-04-23 CN CN201820580324.0U patent/CN208084137U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108637897A (en) * | 2018-04-23 | 2018-10-12 | 温岭市正大工业机器人有限公司 | A kind of quick centering and clamping mechanism of big stroke |
| CN108637897B (en) * | 2018-04-23 | 2023-09-26 | 台州小助手智能科技有限公司 | Large-stroke quick centering clamping mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181113 Termination date: 20200423 |