CN208196524U - Air bag polishing head with automatic buffer function - Google Patents
Air bag polishing head with automatic buffer function Download PDFInfo
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- CN208196524U CN208196524U CN201820681093.2U CN201820681093U CN208196524U CN 208196524 U CN208196524 U CN 208196524U CN 201820681093 U CN201820681093 U CN 201820681093U CN 208196524 U CN208196524 U CN 208196524U
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Abstract
The utility model discloses a kind of air bag polishing heads with automatic buffer function, including air bag disk, polishing air bag, air pressure self-regulation module and air intake valve；The polishing inside air bag is set there are two concentric annular partition, two annular partitions, three chambers that the intracapsular part of the polishing gas is concentric, is located in the middle annular chamber as polishing chamber, other two are cushion chamber one, cushion chamber two；The cushion hole of adjacent two chamber of at least two connections is had on two annular partitions；Air pressure self-regulation module is mounted on cushion hole comprising cushion seal axis, compressed spring and retaining ring；To there are two the installation direction of air pressure self-regulation module is opposite less on the same annular partition.The Ultraprecise polished purpose that the utility model may be implemented air bag pressure automatic buffer balance, avoid rigid contact, buffering flexible good by air pressure self-regulation module.
Description
Technical field
The utility model relates to a kind of air bag polishing heads with automatic buffer function, belong to a kind of polissoir, especially
It is related to a kind of polissoir for air bag polishing.
Background technique
Currently, air bag polishing is a kind of for optical element, especially large scale optical aspherical surface element precision/ultraprecise
The important means of skin processing.The gas of certain pressure is filled in spherical envelope by air bag polishing, and in the path of design, speed
Under pressure, using the polishing pad for being pasted onto spherical envelope head, the polishing operation of workpiece is realized.Including air bag polishing head
It is tightened under the action of portion's air pressure, so when air bag polishing head is pressed onto the moment of workpiece, air bag polishing head and workpiece are " rigidity "
Contact, therefore certain influence can be brought on quality of finish.
The key name that Authorization Notice No. is CN102825543B is " a kind of air bag polishing head for Bonnet Too l Polishing "
National inventing patent, disclose " one kind when inside air bag pressure change, the deflection of air bag is small, can positioning accuracy, significantly mention
The air bag polishing head for Bonnet Too l Polishing of high manufacturing accuracy.Including axis connection head, spherical air bag shell and the polishing material bed of material,
The open end of spherical air bag shell and axis connection head are connected, and the polishing material bed of material adheres to spherical elastic outer layer surface；Its feature
It is, spherical air bag shell is equipped with spherical elastic outer layer and spherical elastic inner layer, the elasticity modulus of spherical elastic inner layer
Greater than the elasticity modulus of spherical elastic outer layer, the spherical direct injection molding of elastic outer layer on spherical elastic inner layer surface,
Spherical elastic outer layer and spherical elastic inner layer consolidate." patent only can solve because air bag inflate, keep air bag deflection big,
Caused by when processing position error it is big, the problems such as machining accuracy is low.
" a kind of disc type circular arc air bag polishing head " disclosed in CN104723216A, which is by annular
Use elastic steel mesh as annular air-pocket bracket in air bag rubber layer, to increase the elasticity modulus of air bag, after reducing air bag inflation
Deflection.
In short, deflection is big after existing air bag polishing head mostly solves the problems, such as air bag inflation, and by improving material
Elasticity modulus solves the problems, such as this, actually increases the rigidity of air bag polishing head again.But air bag polishing head and work are had ignored
Part contact moment, because " rigidity " contact due to influence quality of finish the problem of.
For this purpose, inventor proposes a kind of air bag polishing head with automatic buffer function, for realizing air bag throwing
Flexible Manufacture when light operation, and have the characteristics that versatility is good, reliable and stable, easy to use, this case generates therefrom.
Utility model content
The needs of flexible polishing, provide one when the technical problem to be solved by the utility model is to be directed to air bag polishing
Kind has the air bag polishing head of automatic buffer function, realizes air bag pressure automatic buffer balance, avoids rigid contact, buffering flexible
Good Ultraprecise polished purpose.
In order to solve the above technical problems, the technical solution of the utility model is:
A kind of air bag polishing head with automatic buffer function, including air bag disk, polishing air bag, air pressure self-regulation module with
And air intake valve；The process side of the polishing air bag be it is spherical, the other side is fixedly mounted on the air bag disk；Polish inside air bag
If there are two concentric annular partition, two annular partitions, three chambers that the intracapsular part of the polishing gas is concentric are located at centre
Annular chamber be polishing chamber, chamber at axis is cushion chamber one, and annular chamber on the outermost side is cushion chamber two；It is described
The cushion hole of adjacent two chamber of at least two connections is had on two annular partitions；Air pressure self-regulation module includes that buffering is close
Seal axis, compressed spring and retaining ring；The cushion seal axis side is can be with corking in the corking in the cushion hole, and the other side is
The axis in the cushion hole can be covered；Hole that can be fixed with the close fitting of the axis is equipped among the retaining ring；The compressed spring set
On the axis；To there are two the installation direction of air pressure self-regulation module is opposite less on the same annular partition；The intake valve
Door is mounted on the inflating port of the polishing air bag, which communicates with the cushion chamber one.
Preferably, it is described polishing chamber and two sides or the wherein air pressure of the same installation direction between the cushion chamber of side
Self-regulation module is provided with two groups or multiple groups, and the compressed spring of each group has different spring rates.
Preferably, annular groove is equipped with below the air bag disk, the periphery of the polishing non-processing side of air bag is equipped with ring
Shape boss, when installation, which is stuck in annular groove, then a clamping pad snare on polishing air bag and is located at annular
Below boss, air bag will be polished using several screws later and is fixed together with air bag disk.
Preferably, the air bag disk is equipped with the mounting hole opposite with the inflating port position, and the mounting hole is to match
Close the inflating port installation air intake valve.
Preferably, the annular partition is made with the main body of the polishing air bag of identical material.
After adopting the above scheme, compared with existing air bag polishing head, the utility model has following prominent characteristics:
1. using air pressure self-regulation module, it can be achieved that between polishing chamber and cushion chamber one, between polishing chamber and cushion chamber two
Air pressure automatic buffer balance.The spherical polishing air bag of the utility model is divided into polishing chamber, cushion chamber one and cushion chamber two or three
A region, and cushion hole is designed between polishing chamber and cushion chamber one, between polishing chamber and cushion chamber two.In air bag polishing mistake
Cheng Zhong, when polishing force changes, polishing chamber will be deformed polishing chamber, can cause the variation of air pressure in cavity.Due to buffering
Hole is equipped with air pressure self-regulation module, therefore when polishing chamber air pressure higher or lower than neighboring chambers, the sky of high pressure side cavity
Gas will open air pressure self-regulation module, enter in low pressure side cavity, to realize that air pressure is delayed automatically under the action of pressure difference
Punching balance.
2. avoiding rubbing head in polishing and the rigidity of workpiece being touched.Since the utility model is divided into throwing for air bag is polished
Two or three optical cavity, cushion chamber one and cushion chamber regions, and air pressure self-regulation module is used to realize the automatic of each chamber pressure
Balance, therefore the buffering of contact force when polishing may be implemented, the rigid contact of rubbing head and workpiece is avoided, therefore can obtain more
Good machined surface quality.
3. the air pressure self-regulation module of the utility model can use multiple groups, the compressed spring of each group can use different
Spring rate may make pooling feature to have better flexibility.Since the utility model can use several groups of difference spring rates
Compressed spring, therefore with the increase of pressure difference in polishing airbag chamber body, the quantity that is opened of air pressure self-regulation module also increases,
To realize the flexible control of pressure adaptive buffering adjusting.
It can be seen that may insure air bag polishing head realization air pressure automatic buffer balance using the utility model, avoiding just
Property contact, the advantages that buffering flexible is good, therefore there is very big researching value and feasibility.
Detailed description of the invention
Fig. 1 is that the polishing airbag chamber body of the utility model embodiment separates schematic diagram；
Fig. 2 is the diagrammatic cross-section of the utility model embodiment；
Fig. 3 is the air pressure self-regulation module position schematic diagram of the utility model embodiment；
Fig. 4 is the air pressure self-regulation module operation schematic diagram of the utility model embodiment；
Fig. 5 is the decomposition diagram of the air pressure self-regulation module of the utility model embodiment；
Fig. 6 is schematic diagram of the utility model embodiment using multiple groups air pressure self-regulation module.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments.
Revealed the utility model is a kind of air bag polishing head with automatic buffer function, as shown in Figures 1 to 5,
For the preferred embodiment of the utility model.The air bag polishing head includes air bag disk 1, polishing air bag 2, air pressure self-regulation module
3 and air intake valve 4.Wherein:
The air bag disk 1 is used to be fixedly mounted the polishing air bag 2, and fixed installation can use various structures.
The present embodiment is equipped with annular groove 11 below the air bag disk 1, and the periphery of the non-processing side of polishing air bag 2 is equipped with annular convex platform 26,
When installation, which is stuck in annular groove 11, then by 5 sets of a packing washer on polishing air bag 2 and positioned at annular
26 lower section of boss will polish air bag 2 using several screws 6 later and be fixed together with air bag disk 1.
2 process side of polishing air bag be it is spherical, the other side, that is, non-processing side is fixedly mounted on the air bag disk 1
On.It is set inside the polishing air bag 2 there are two concentric annular partition 23, two annular partitions 23 are by 2 inner part of polishing air bag
Three concentric chambers are located in the middle annular chamber as polishing chamber 21, and the chamber at axis is cushion chamber 1, is located at
Outermost annular chamber is cushion chamber 2 222.Meanwhile at least two connection phases are had on two annular partitions 23
The cushion hole 24 of adjacent two chambers.In addition, the annular partition 23 can use identical material with the main body of polishing air bag 2.
The air pressure self-regulation module 3 is mounted on the cushion hole 24 of the annular partition 23 comprising cushion seal
Axis 31, compressed spring 32 and retaining ring 33；31 side of cushion seal axis is can be with corking in the corking in the cushion hole 24
311, the other side is the axis 312 that can be covered in the cushion hole 24；Being equipped among the retaining ring 33 can be with cushion seal axis 31
The fixed hole 331 of the close fitting of axis 312；Described 32 sets of compressed spring are on the axis 312；When installation, by cushion seal
31 sets of axis cover upper compressed spring 33 on axis 312 in the cushion hole 24, later, then retaining ring 33 are fastened on the axis 312,
Retaining ring 33 and cushion seal axis 31 are fixed together, and compressed spring 33 is made to be located at the 24 side outer wall of cushion hole and retaining ring
Between 33.And on the same annular partition 23, at least there are two the installation direction of air pressure self-regulation module 3 is opposite.In Fig. 3,4
Equipped with two groups of air pressures self-regulation modules 3, i.e. air pressure self-regulation one 3a of module and air pressure self-regulation two 3b of module, two groups of air pressure self-regulateds
The installation direction of module 3 is saved on the contrary, air pressure self-regulation one 3a of module is used to realize that the air of cushion chamber 1 enters polishing chamber
21, and air pressure self-regulation two 3b of module is used to realize that the air of polishing chamber 21 enters cushion chamber 1.Likewise, polishing chamber
The opposite air pressure self-regulation module 3 of installation direction also is provided between 21 and cushion chamber 2 222.The air pressure self-regulation module 3
For realizing the air pressure balance between polishing chamber 21 and cushion chamber 1, between polishing chamber 21 and cushion chamber 2 222.
The air intake valve 4 is mounted on the inflating port 25 of the polishing air bag 2, the inflating port 25 and the buffering
Chamber 1 communicates.Also the mounting hole 12 opposite with 25 position of inflating port, the installation can be set on the air bag disk 1
Hole 12 is to cooperate inflating port 25 to install the air intake valve 4.
The working principle of the self-regulation module 3 of air pressure described in the utility model embodiment are as follows: the gas such as Fig. 3 and Fig. 4, in figure
Gentle two 3b of automatically regulated pressure section module of one 3a of automatically regulated pressure section module belongs to air pressure self-regulation module, their installations reversely with each other.Its
In, air pressure self-regulation one 3a of module is used to realize that the air of cushion chamber 1 enters and polishes chamber 21, and air pressure self-regulation module two
3b is used to realize that the air of polishing chamber 21 enters cushion chamber 1.When the air pressure of polishing chamber 21 is higher than the gas of cushion chamber 1
Pressure, and when pressure difference is greater than the spring force of the compressed spring 32 of air pressure self-regulation two 3b of module, polish chamber 21 air will enter it is slow
Punching 24 opens cushion seal axis 31, and compressed spring 32 is compressed, so that air enters cushion chamber one by polishing chamber 21
221, and then balance the air pressure of polishing chamber 21 and cushion chamber 1.When the pressure difference of polishing chamber 21 and cushion chamber 1 is less than
When the spring force of air pressure self-regulation two 3b of module, the reset force of compressed spring 32 pushes retaining ring 33, to drive cushion seal axis
31 reset, and cushion hole 24 is blocked, and polish chamber 21 and cushion chamber 1 is isolated and comes.Likewise, when cushion chamber 1
Air pressure is higher than the air pressure of polishing chamber 21, and when spring force of the pressure difference greater than air pressure self-regulation one 3a of module, the sky of cushion chamber 1
Pneumatic jack opens cushion seal axis 31, and enters polishing chamber 21, thus the air pressure of equalizing and buffering chamber 1 and polishing chamber 21.When
When polishing spring force of the pressure difference of chamber 21 and cushion chamber 1 less than air pressure self-regulation one 3a of module, compressed spring 32 drives slow
Punching sealing axis 31 resets, and cushion hole 24 is blocked, and polishes chamber 21 and cushion chamber 1 is kept apart.Polish chamber 21 and cushion chamber
The working principle of air pressure self-regulation module 3 between 2 222 is also such.
Before the work of air bag polishing machine, the air that air intake valve 4 is filled with certain air pressure into polishing air bag 2 is first passed through.Because
Air intake valve 4 and cushion chamber 1 communicate, so air can be introduced into cushion chamber 1.Due at this moment cushion chamber 1
Air pressure is greater than polishing chamber 21.When the pressure difference of cushion chamber 1 and polishing chamber 21 is greater than the spring force of compressed spring 32, then
Under the action of pressure difference, the air in cushion chamber 1 will open the cushion seal axis 31 in air pressure self-regulation one 3a of module, and will
Compressed spring 32 is compressed, so that air enters in polishing chamber 21 (Fig. 3).Likewise, since the air pressure in polishing chamber 21 increases, when
When air pressure is higher than cushion chamber 2 222, and when the pressure difference for polishing chamber 21 and cushion chamber 2 222 is greater than the spring force of compressed spring 32,
The air of polishing chamber 21 opens the air pressure self-regulation module 3 between polishing chamber 21 and cushion chamber 2 222, so that polishing chamber 21
Air enter cushion chamber 2 222, and the air pressure of cushion chamber 2 222 is increased.When the air pressure of two neighboring cavity is less than pressure
When the spring force of contracting spring 32, compressed spring 32 resets under spring force, pushes the cushion seal axis opened originally
31 reset, so that cushion hole 24 be blocked.When the pressure required for polishing the air pressure in air bag 2 and reaching, stop toward intake valve
Door 4 is inflated.Because air intake valve 4 is one-way air inlet, after stopping inflation, the air polished in air bag 2 will not be leaked to throwing
Outside phosgene capsule 2, it is ensured that the pressure in polishing air bag 2 is within zone of reasonableness.
Since air bag polishing machine needs to tilt certain angle in operation, in air bag polishing, polishing portion
Position is in the region of the polishing chamber 21 of polishing air bag 2.In this way, polishing chamber 21 will be extruded, therefore polish chamber when polishing operation
21 inner geometry spaces become smaller, and the air pressure of polishing chamber 21 will increase accordingly, when polishing chamber 21 and adjacent buffer chamber 1 or buffering
When the pressure difference of chamber 2 222 is higher than the spring force of compressed spring 32, cushion seal axis 31 is opened, and the air polished in chamber 21 enters
The cushion chamber of two sides avoids the rigid contact of rubbing head and workpiece, therefore can obtain to realize the buffering of contact force when polishing
Obtain better machined surface quality.The moment contacted in air bag polishing head with workpiece can occur for this process, so as to keep away
Exempt from the processing quality that workpiece is influenced because of the rigid contact of moment.This process can also occur during air bag polishing,
It is balanced by air pressure automatic buffer, realizes better Flexible Manufacture, improve quality of finish.
When polishing air bag 2 is lifted away from workpiece, polishing 21 extruding degree of chamber will weaken or not be extruded, and polish in chamber 21
Portion's geometric space becomes larger, and the air pressure polished in chamber 21 accordingly becomes smaller, when polishing chamber 21 and adjacent buffer chamber 1 or cushion chamber two
When 222 pressure difference is higher than the spring force of compressed spring 32, cushion seal axis 31 is opened, in the cushion chamber for polishing 21 two sides of optical cavity
Air enter polishing chamber 21, thus compensate polishing chamber 21 in air pressure.
In addition, in polishing air bag 2 different air pressure self-regulated can be formed using the compressed spring 32 of different spring rates
Save module 3.In utility model embodiment as shown in Figure 6, three kinds of different bullets are used between polishing chamber 21 and cushion chamber 1
The compressed spring 32 of spring rigidity, to constitute the air pressure self-regulation module 3 of three groups of difference spring forces, i.e. air pressure self-regulation module
3A, the air pressure self-regulation gentle automatically regulated pressure section module 3C of module 3B.Due to air pressure self-regulation module 3A, air pressure self-regulation module 3B and
Air pressure is self-regulated, and different (such as air pressure self-regulation module 3A < air pressure is self-regulated module 3B < air pressure self-regulated for the spring rate of module 3C
Save module 3C), then air pressure is self-regulated module 3A can first quilt when the pressure difference between polishing chamber 21 and cushion chamber 1 is smaller
It opens.When pressure difference increases, air pressure self-regulation module 3B, air pressure self-regulation module 3C can also be opened successively.Therefore, work as pressure difference
When bigger, the self-adjustment module opened is more, to adjust when realizing polishing with the size automatic buffer of polishing force.
The above descriptions are merely preferred embodiments of the present invention, not makees to the technical scope of the utility model
Any restrictions, therefore any changes or modifications made in the claims and specifications of the utility model all should belong to practical
Within the scope of new patent is covered.
Claims (5)
1. a kind of air bag polishing head with automatic buffer function, it is characterised in that: including air bag disk (1), polishing air bag (2),
Air pressure self-regulation module (3) and air intake valve (4)；The process side of the polishing air bag (2) is spherical, other side fixed installation
On the air bag disk (1)；Polishing inside air bag is set there are two concentric annular partition (23), and two annular partitions are by the polishing gas
Three concentric chambers of intracapsular part are located in the middle annular chamber as polishing chamber (21), and the chamber at axis is cushion chamber
One (221), annular chamber on the outermost side are cushion chamber two (222)；It is had at least on described two annular partitions (23)
The cushion hole (24) of adjacent two chamber of two connections；Air pressure self-regulation module (3) includes cushion seal axis (31), compressed spring
(32) and retaining ring (33)；Cushion seal axis (31) side be can with corking in the corking (311) in the cushion hole (24),
The other side is the axis (312) that can be covered in the cushion hole (24)；Being equipped among the retaining ring (33) can be close with the axis (312)
The fixed hole (331) of fitting；The compressed spring (32) covers on the axis (312)；Rare two are arrived on the same annular partition (23)
The installation direction of a air pressure self-regulation module (3) is opposite；The air intake valve (4) is mounted on filling for polishing air bag (2)
On port (25), which communicates with the cushion chamber one (221).
2. the air bag polishing head according to claim 1 with automatic buffer function, it is characterised in that: the polishing chamber
(21) and two sides or wherein the same installation direction between the cushion chamber of side air pressure self-regulation module (3) be provided with two
The compressed spring (32) of group or multiple groups, each group has different spring rates.
3. the air bag polishing head according to claim 1 or 2 with automatic buffer function, it is characterised in that: the gas
Annular groove (11) are equipped with below discus (1), the periphery of described polishing air bag (2) non-processing side is equipped with annular convex platform (26), peace
When dress, which is stuck in annular groove (11), then a packing washer (5) is covered in polishing air bag (2) and position
Below annular convex platform (26), air bag (2) will be polished using several screws (6) later and be fixed together with air bag disk (1).
4. the air bag polishing head according to claim 1 with automatic buffer function, it is characterised in that: the air bag disk
(1) it is equipped with the mounting hole (12) opposite with the inflating port (25) position, the mounting hole (12) is to cooperate inflating port (25)
The installation air intake valve (4).
5. the air bag polishing head according to claim 1 with automatic buffer function, it is characterised in that: the described annular every
Plate (23) is made with the main body of polishing air bag (2) of identical material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820681093.2U CN208196524U (en) | 2018-05-08 | 2018-05-08 | Air bag polishing head with automatic buffer function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820681093.2U CN208196524U (en) | 2018-05-08 | 2018-05-08 | Air bag polishing head with automatic buffer function |
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| Publication Number | Publication Date |
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| CN208196524U true CN208196524U (en) | 2018-12-07 |
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ID=64519270
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820681093.2U Active CN208196524U (en) | 2018-05-08 | 2018-05-08 | Air bag polishing head with automatic buffer function |
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| CN (1) | CN208196524U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109676480A (en) * | 2019-02-21 | 2019-04-26 | 宁波华数机器人有限公司 | A kind of cookware automatic grinding bottom vehicle mouth device |
| CN111015372A (en) * | 2019-11-28 | 2020-04-17 | 盐城工学院 | Grinding method of milling cutter for milling titanium-based composite material |
| CN112605786A (en) * | 2020-11-29 | 2021-04-06 | 厦门理工学院 | Air bag head mechanism capable of adjusting pressure in segmented mode and air bag polishing device |
-
2018
- 2018-05-08 CN CN201820681093.2U patent/CN208196524U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109676480A (en) * | 2019-02-21 | 2019-04-26 | 宁波华数机器人有限公司 | A kind of cookware automatic grinding bottom vehicle mouth device |
| CN111015372A (en) * | 2019-11-28 | 2020-04-17 | 盐城工学院 | Grinding method of milling cutter for milling titanium-based composite material |
| CN112605786A (en) * | 2020-11-29 | 2021-04-06 | 厦门理工学院 | Air bag head mechanism capable of adjusting pressure in segmented mode and air bag polishing device |
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