CN201102173Y

CN201102173Y - Swing frame with adjustable pressure

Info

Publication number: CN201102173Y
Application number: CNU2007200419059U
Authority: CN
Inventors: 吴学良; 张珑
Original assignee: NANJING LISHENG OPTICS MACHINERY CO Ltd
Current assignee: NANJING LISHENG OPTICS MACHINERY CO Ltd
Priority date: 2007-11-28
Filing date: 2007-11-28
Publication date: 2008-08-20
Anticipated expiration: 2017-11-28

Abstract

A pressure-adjustable swinging rack is the improvement of the structure of the traditional swinging rack in the optical processing field. The pressure-adjustable swinging rack comprises an air cylinder, a swinging sleeve, a swinging base, a swinging bracket, a swinging rod, a stylus seat and styluses, wherein, the air cylinder is mounted on one end of the swinging sleeve, the other end of the swinging sleeve is mounted on the swinging base, the air cylinder rod of the air cylinder is connected with the swinging bracket which is movably connected with the swinging base connecting pieces, one end of the swinging rod is connected with the swinging bracket, and the stylus seat with the styluses is fixed on the swinging rod. The utility model has the advantages that the structure is simple and can be easily actualized and that the air pressure of the air cylinder is regulated to directly regulate the pressure on a workpiece applied by the swinging rod, which can improve the processing quality of precision optical elements. The installation of a vernier device and a safety device can ensure that the regulation of the swing amplitude center of the swinging rack is more accurate and convenient and that the swinging rack is reliable and safe when being used.

Description

Adjustable pressure formula rocker

Technical field

The utility model relates to the improvement of a kind of machine tool structure in the optics manufacture field, especially a kind of improvement of 26S Proteasome Structure and Function of the rocker to the traditional optical machining tool.

Background technology

It is that workpiece to processing is exerted pressure and for workpiece provides the power of doing oscillating motion that rocker in traditional optics cold working equipment mainly acts on, but its function is comparatively single, also relatively poor to the control accuracy ability of pressure.Because the head on traditional rocker adopts weight pressurization mostly, add man-hour carrying out optical element, be placed on weight on the rocker by replacing and realize modification the pressure parameter between grinding tool and the workpiece.Pressure need be transferred greatly, just be used instead the big weight of quality, pressure need be turned down and then use the little weight of quality instead.Because the quality of used weight is a fixed value,, can't realizes accurate adjusting, and can only rely on experience so just can't realize the size of dynamically continuous change pressure.In addition, the head of traditional rocker all will be realized with manpower when lifting and descend, and is more time-consuming bothersome.

Secondly, because the rocker in the optics cold working equipment mostly adopts crank-rocker structure, when this structure is adjusted rocker amplitude of oscillation size by the length that changes crank, the oscillation center of rocking bar also can be along with change, so each amplitude of oscillation of adjusting, all to readjust the oscillation center that rocking bar is the rocker head, whether appropriate because oscillation center is regulated, can directly have influence on the crudy of optical element.Traditional control method be operating personnel with the openhanded locking device of opening on the rocker after, armrest is pulled rocker and is regulated, owing to lack micromatic setting, adjustment process is comparatively complicated, needs rocker head system to be transferred to suitable position after repeatedly revising.So the rocker in traditional optics cold working equipment to the prevention aspect of the processing accident that may occur in the process consider few, have certain potential safety hazard.

Summary of the invention

1, goal of the invention: in order to solve the deficiency of existing rocker in said structure and design, the utility model provides a kind of adjustable pressure formula rocker, this adjustable pressure formula rocker is not only realized the rising or the decline of rocker by cylinder is installed, and can directly regulate the pressure size that fork imposes on workpiece by the size of regulating cylinder air pressure.More accurate and convenient in order to make to the adjustment of amplitude of oscillation center, the utility model has also designed micromatic setting, and be in the consideration of process safety aspect, this adjustable pressure formula rocker has designed the necessary protection device at the main potential safety hazard that may occur in producing, thereby make the utility model use reliably safety.

2, technical scheme: a kind of adjustable pressure formula rocker described in the utility model, it is characterized in that: it comprises cylinder, swing cover, swing seat, swing span, fork, stylus holder and stylus, cylinder is installed in swing cover one end, the swing cover other end is installed on the swing seat, the piston rod of cylinder links to each other with swing span, swing span flexibly connects by connector (as bearing pin) and swing seat, and fork one end is connected with swing span, and the stylus holder that stylus is installed is fixed on the fork by lock-screw.

Be provided with hollow cavity in the swing cover, body places pull bar one end in the cavity to pass with piston rod from hollow cavity to be connected, and the other end passes by oscillating bearing from hollow cavity and links to each other with swing span.

For pull bar is connected with piston rod, thereby effectively by cylinder power is passed to pull bar, cylinder rod is connected with pull bar one end by transit joint.

In order further to adjust the size of stylus to the pressure of mill and workpiece, this structure also is provided with except the air pressure of regulating cylinder and lets out the power spring, let out power spring one end and be connected on the adjusting screw on the swing span, the other end is connected on the T type cross bar that is fixed on the swing seat.

For the adjustment of the center that makes the rocker amplitude of oscillation becomes more accurately and convenient, on the swing seat trimming hand wheel is installed, and links to each other with first gear in being arranged on the swing seat by jackshaft, this first gear is swung second gear that puts and is linked to each other with being installed in.Operating personnel move and regulate fork behind ideal position like this, rotate trimming hand wheel, by first gear and second gear meshing, make swing seat, fork etc. further finely tune to desirable position.

In process, because the needs of processing technology, sometimes need adjust the position at stylus center and mill center, at this moment can make stylus slide in the cofree front and back of fork by unclamping the lock-screw that stylus holder is fixed on the fork with stylus holder, the operator can be according to needs, with reference to the scale on the fork, fast stylus is moved to the position that needs, again stylus holder locking is got final product with lock-screw then.

In order preventing in process, thereby to make polished die come off suddenly to make the generation of the phenomenon that stylus directly bumps with workpiece for a certain reason, spacing screw rod vertically to be installed on the swing span that screw head is with to be arranged on a limit base of swinging corresponding.Like this by adjusting the distance between spacing screw rod and the limit base; can make if polished die comes off; spacing screw rod just can contact very soon with limit base, and rocker just can remain on certain height with workpiece relatively with stylus, thereby reaches the purpose of protection optical work.

In order be accurately stylus to be moved to the tram of processing with stylus holder, scale is installed on the fork.

In order to prevent that descending puts in place does not just begin to swing the generation of the processing accident that causes owing to rocker, stylus have, on the swing seat, travel switch is installed, a position and the corresponding triggering pad of travel switch are installed on swing span simultaneously.Travel switch is a nomal closed type, has only when swing span to be pivotally lowered into suitable position around a bearing pin that is connected with swing seat, and travel switch sets out and fills up with after travel switch contacts, and travel switch just can be connected, and machine just can be worked, otherwise machine can not turn round.Can prevent effectively like this that when stylus does not also contact with the pit of last polished die lower wall has begun to rotate the generation of the accident that the polished die that causes throws away.

Sometimes for rocker is installed on the lathe frame, is convenient to operating personnel and on lathe, operates rocker, swing cover body can be enclosed within the clutch shaft bearing and second bearing, two bearings is installed on the corresponding frame just can on lathe, rocker be done slide again.

The utility model mechanical work principle is: the rocker that utilizes the cylinder drive to be attached thereto rises or descends, directly regulate the size that fork imposes on the pressure of workpiece by the size of regulating air pressure, this adjusting is mild continuously, there is not jump, so very favourable to the crudy that improves the precision optics part.

3, beneficial effect: the utility model is simple in structure, realize that easily regulate the size of cylinder air pressure and directly regulate the size that fork imposes on the pressure of workpiece, this adjusting is mild continuously, there is not jump, so very favourable to the crudy that improves the precision optics part.Micromatic setting has been installed, has been made and adjust rocker amplitude of oscillation center more accurately, reliably.And by cylinder and the cooperation of letting out the power spring, can be further implemented in the adjusting of stylus output pressure under the same air pressure, not only realize the unification of a plurality of head system output pressure under the same air pressure, be convenient to the layout of processing technology, but also can realize zero pressure processing; Design safety device, thereby made the utility model use reliably safety.

Description of drawings

Fig. 1 is a cross-sectional view of the present utility model.

Fig. 2 is the structural representation of looking up of the present utility model

The specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

As shown in Figure 1, this adjustable pressure formula rocker mainly comprises cylinder 1, swing cover 2, swing seat 3, swing span 4, fork 5, stylus holder 6, stylus 7, pull bar 8, lets out power spring 9, trimming hand wheel 10, spacing screw rod 11, scale 12, travel switch 13, first gear 14, second gear 15, transit joint 16, piston rod 17, oscillating bearing 18, bearing pin 19, latch segment 20, tie down screw 21, adjusting screw 22, clutch shaft bearing 23, second bearing 24, adjusting screw 25, T type cross bar 26, limit base 27.

Cylinder 1 is installed in swing cover 2 one ends, and swing cover 2 other ends are installed on the swing seat 3, are provided with hollow cavity in the swing cover 2, and body places pull bar 8 one ends in the cavity to be connected with piston rod by transit joint, and the other end links to each other with swing span 4 by oscillating bearing.Swing span 4 passes through connector, be connected with swing seat 3 as bearing pin 19, on the swing seat 3 latch segment is installed, can fix swing seat 3 and overlap 2 relative position with swing, tie down screw 21 corresponding the insertions in the latch segment 20 that are used for fixing the rocker locality, rotational lock screw rod 21 can realize swinging the locking of seat 3 and swing cover 2 relative positions and unclamping.Second gear 15 that is installed on the swing cover 2 is meshing with first gear 14 that is arranged in the swing seat 3, and first gear 14 is enclosed within the trimming hand wheel 10 that inserts in the swing seat 3 by jackshaft and takes turns on the bar.In order further to adjust the pressure size of 7 pairs of mills of stylus and workpiece, this structure also is provided with except the air pressure of regulating cylinder and lets out power spring 9, can conveniently adjust the pressure of 7 pairs of mills of stylus and workpiece by the balance of letting out 9 pairs of partial cylinders 1 pulling force of power spring, thereby also can easily realize the unification of the stylus output pressure of a plurality of head system under the same air pressure, help the layout of processing technology.Moreover, but also can realize the zero pressure machining state of rocker system to workpiece, about each a pair of power of letting out spring 9 one end be installed in respectively on a pair of adjusting screw 25 of swing span back, the other end is connected with a T type cross bar 26 of swing seat back respectively.Fork 5 one ends that scale 12 is installed are connected with swing span 4, and the stylus holder 6 that stylus 7 is installed is fixed on the fork 5 by lock-screw.In order to prevent in process, thereby make polished die come off suddenly for a certain reason to make stylus directly and the generation of the phenomenon that bumps of workpiece, spacing screw rod 11 vertically be installed on the swing span 4 by the screwed hole on the swing span 4 and upper-lower position adjustable, screw head is corresponding with the limit base 27 on being arranged on swing seat 3.Swing span 4 links to each other with swing seat 3 by bearing pin 19, so swing span 4 can be done the action of kicking up and depressing with swing seat 3 relatively, travel switch 13 is installed on the swing seat 3, and travel switch triggers pad and is installed on the swing span 4, and travel switch 13 be a nomal closed type, have only when swing span 4 around being pivotally lowered into suitable position with swing 3 bearing pin that are connected 19, after travel switch triggers pad and travel switch 13 contacts, travel switch 13 is connected, and promptly machine just can be worked, otherwise machine can not turn round.Can prevent effectively like this that when stylus 7 does not also contact with the pit of last polished die lower wall has begun to rotate the generation of the accident that the polished die that causes throws away.Operate if this device need be installed on the lathe, swing cover 2 bodies can be enclosed within the clutch shaft bearing 23 and second bearing 24, the clutch shaft bearing 23 and second bearing 24 are installed on the corresponding frame of lathe, clutch shaft bearing 23 can be selected deep groove ball bearing for use again, second bearing, 24 band spherical outside surface self-aligning ball bearings.Operating personnel just can be with rocker autotelic slip on frame like this, thus handled easily.

Specific operation process of the present utility model is: earlier rocker is placed correct position, if on lathe, then rocker is slided into correct position.Operate cylinder then, make its lower end ventilation, then cylinder piston rod is passed to swing span by pull bar with power, thereby makes swing span face upward, and to realize that fork must rise, is convenient to the taking-up of workpiece and goes up dish; Cylinder pulls down fork by pull bar if cylinder is oppositely ventilated, thereby can realize pressurization to workpiece, and can directly regulate the size that fork imposes on the pressure of workpiece by the size of regulating air pressure, this adjusting is mild continuously, there is not jump, so it is very favourable to the crudy that improves the precision optics part, this rocker system lets out the power spring to the guiding mechanism of workpiece pressure except cylinder also is provided with one, the pulling force of letting out the power spring is adjustable, when the nut that passes through on the adjusting screw of rotary oscillation frame back, can realize moving up and down of this adjusting screw, because the T type cross bar of swing seat back is fixed, so this adjustable nut of rotation also just can be realized the adjusting of the elongation of spring, thereby can realize the adjusting to the size of the equilibrant force of cylinder pulling force.And then can realize adjusting to the stylus output pressure, can easily realize the unification of a plurality of head system output pressure under the same pressure like this, even operating air pressure that can be by reasonable adjusting cylinder and the big I of letting out the pulling force of power spring realize the zero pressure machining state of rocker system to workpiece.When needing to adjust the center of the rocker amplitude of oscillation, only need the rotational lock screw rod, make latch segment unclamp, make the swing seat can freely rotate relative to swinging cover with rocker, fork etc., at this moment available hand is moved fork near ideal position, rotate trimming handle then, engagement by fine setting gear and sleeve gear, make swing seat, fork etc. further finely tune to desirable position, after it adjusts to ideal position, the rotational lock screw rod makes swing overlap and the locking mutually of swing seat, can finish the adjusting to rocker system amplitude of oscillation center.

In process, because the needs of processing technology, sometimes need adjust the position at stylus center and mill center, this can be by unclamping the lock-screw on the stylus holder, make stylus to slide in the cofree front and back of fork with stylus holder, operating personnel can be according to needs, with reference to the scale on the fork, fast stylus is moved to the position that needs, stylus holder is locked once more get final product then.

This adjustable pressure formula rocker of consideration for the process safety aspect is provided with safety device, promptly on the swing seat, be mounted with travel switch, if descending, rocker do not arrive assigned address, travel switch can not move, then rotation axle electric machine then can not start, and prevents from just not begin to swing the generation of the processing accident that the last polished die that causes is thrown out of because rocker, stylus descend to putting in place.In order to prevent in process; thereby make polished die come off suddenly for a certain reason to make stylus directly and the generation of the phenomenon that bumps of workpiece; this device is provided with the mechanical position limitation screw rod; after workpiece size is given; by adjusting the distance between spacing screw rod and the limit base, can make that if polished die comes off spacing screw rod just can contact very soon with limit base; rocker just can remain on certain height with workpiece relatively with stylus, thereby reaches the purpose of protection optical work.

Claims

1, a kind of adjustable pressure formula rocker, it is characterized in that: it comprises cylinder (1), swing cover (2), swing seat (3), swing span (4), fork (5), stylus holder (6) and stylus (7), cylinder (1) is installed in swing cover (2) one ends, swing cover (2) other end is installed on the swing seat (3), the cylinder piston rod of cylinder (1) links to each other with swing span (4), swing span (4) flexibly connects by connector and swing seat (3), fork (5) one ends are connected with swing span (4), and the stylus holder (6) that stylus (7) are installed is fixed on the fork (5).

2, adjustable pressure formula rocker according to claim 1 is characterized in that: be provided with hollow cavity in the swing cover (2), body places pull bar (8) one ends in the cavity to be connected with cylinder piston rod, and the other end links to each other with swing span (4) by oscillating bearing.

3, adjustable pressure formula rocker according to claim 2 is characterized in that: cylinder piston rod is connected with pull bar (8) one ends by transit joint.

4, adjustable pressure formula rocker according to claim 1 is characterized in that: let out on the adjusting screw (25) that power spring (9) one ends are connected swing span (4), the other end is connected with T type cross bar (26) on the swing seat (3).

5, adjustable pressure formula rocker according to claim 1, it is characterized in that: trimming hand wheel (10) is installed on the swing seat (3), and link to each other with first gear (14) in being arranged on swing seat (3) by jackshaft, this first gear (14) is swung second gear (15) that overlaps on (2) and is linked to each other with being installed in.

6, adjustable pressure formula rocker according to claim 1, it is characterized in that: stylus holder (6) is fixed on the fork (5) by lock-screw.

7, adjustable pressure formula rocker according to claim 1 is characterized in that: spacing screw rod (11) vertically is installed on the swing span (4), and its screw head is corresponding with the limit base (27) on being arranged on swing seat (3).

8, adjustable pressure formula rocker according to claim 1, it is characterized in that: scale (12) is installed on the fork (5).

9, adjustable pressure formula rocker according to claim 1 is characterized in that: travel switch (13) is installed on the swing seat.

10, adjustable pressure formula rocker according to claim 1 is characterized in that: swing cover (2) body is enclosed within clutch shaft bearing (23) and second bearing (24).