CN204277565U - A kind of stepless quick adjustable distance fixture - Google Patents
A kind of stepless quick adjustable distance fixture Download PDFInfo
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- CN204277565U CN204277565U CN201420566746.4U CN201420566746U CN204277565U CN 204277565 U CN204277565 U CN 204277565U CN 201420566746 U CN201420566746 U CN 201420566746U CN 204277565 U CN204277565 U CN 204277565U
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- thread screw
- screw
- threaded sleeve
- thread
- rotary threaded
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Abstract
The utility model provides a kind of stepless quick adjustable distance fixture, comprising: cylinder is fixed on cylinder block, and one end of compressor arm and cylinder expansion link are flexibly connected; The other end of compressor arm is connected with the movable upper end of connecting rod assembly; The lower end of described connecting rod assembly is connected with cylinder block by screw; Described connecting rod assembly comprises: thread screw A, screw locknut, thread screw B, left-right rotary threaded sleeve rod C; The upper end of thread screw A is connected with compressor arm by pin; Thread screw A lower end is connected with the upper screwed hole of left-right rotary threaded sleeve rod C; Screw locknut is set on thread screw A; The lower screwed hole of left-right rotary threaded sleeve rod C is connected with thread screw B; Thread screw B lower end is connected with cylinder block by screw.The stepless quick adjustable distance fixture that the utility model provides can realize the stepless quick adjustment of compressor arm stroke.
Description
Technical field
The utility model relates to machining and manufacture field, particularly relates to the stepless quick adjustable distance compressing fixture of a kind of machining.
Background technology
In mechanical manufacturing field, during usual processing work, be first that work piece is fixed on the table top of machining tool, then process, just need in the process to use fixture to fix work piece.A kind of compressing fixture of fixing work piece is generally used for as shown in Fig. 1 ~ 5 in prior art.As can be seen from Figure, fixture of the prior art mainly by work piece, clamping fixture seat, cylinder clamp assembly, three major part compositions.Its concrete mounting structure is:
By screw A(12,18) cylinder (11) is locked on cylinder block (14), the right of compressor arm (22) is connected with cylinder expansion link (16) by pin (23); The left side of compressor arm (22) is by pin (21) and connecting rod assembly (right-handed thread bar A(20), right-handed thread screw locknut (24), right-handed thread screw rod B(25)) upper end be connected; The lower end of connecting rod assembly is connected with cylinder block (14) by screw (26); Cylinder clamp assembly adopts screw B(13,17) be fixed on clamping fixture seat; Work piece is placed in the upper plane of clamping fixture seat (15).
Right-handed thread screw rod A(20) upper end is connected with compressor arm (22) by pin (21); Right-handed thread screw rod A(20) right-handed thread endoporus and the right-handed thread screw rod B(25 of lower end) be connected; Right-handed thread screw locknut (24) is enclosed within right-handed thread screw rod B(25) on, simultaneously can by being close to right-handed thread screw rod A(20) mode of lower surface locked.Right-handed thread screw rod B(25) lower end is connected with cylinder block (14) by screw (26).
During the work of this compressing fixture, open gas source valve, at this moment Telescopic-cylinder bar (16) can under the effect of cylinder (11) air pressure, upwards jack-up, the link assembly (right-handed thread bar A(20) on the left side, right-handed thread screw locknut (24), right-handed thread screw rod B(25)) serve point action, the left-hand end of compressor arm (22) compresses work piece (10) downwards under the effect of lever force, and at this moment namely work piece has been fixed, and just can start processing afterwards and cut.
After above-mentioned compressing fixture assembles, because cylinder model is selected, the flexible stroke of Telescopic-cylinder bar (16) namely secures, and now the upper-lower compacting distance of compressor arm (22) also just secures.The upper and lower stroke distances of compressor arm (22) due to compressing fixture is limited, the height (such as compressor arm (22) left-hand end cannot touch workpiece to be machined (10), namely cannot be fixed work piece) of work piece (10) often can not be mated in actual use.This just needs to carry out an inching, and the upper-lower compacting distance of compressor arm (22) can be regulated, so that fixing work piece (10).In prior art, have employed and the mode of length (i.e. the mode of adjustable fulcrum height) can be regulated to regulate the upper-lower compacting stroke distances of compressor arm (22) by the connecting rod assembly of cylinder assembly.Concrete regulative mode is as follows:
By regulating right-handed thread screw rod A(20) and right-handed thread screw rod B(25) being locked of the length that is threaded and right-handed thread screw locknut (24), the length of adjustment connecting rod assembly.That is, operating personnel can make right-handed thread screw rod B(25) screw in right-handed thread screw rod A(20) more, increase the length be threaded, thus make the contraction in length of connecting rod assembly; Or by right-handed thread screw rod B(25) screw out right-handed thread screw rod A(20) some, reduce the length be threaded, thus make the length elongation of connecting rod assembly.
But inventor finds in enforcement process of the present utility model, and clamping device of the prior art at least exists following shortcoming:
1, owing to regulating the length of left side connecting rod assembly can only be all the integral multiple of 1 pitch at every turn.This is because right-handed thread screw rod B lower end is connected with cylinder block by screw, that is, no matter be lengthen or the adjustment that shortens, all right-handed thread screw rod B can only be rotated the integral multiple of 1 week or 1 week, namely adjustable range is the integral multiple of 1 pitch all the time.(because right-handed thread screw rod B just can be connected with cylinder block after rotating the integral multiple of 1 week or 1 week again.) namely this prior art cannot the function of real stepless speed changing adjustment, and just one have a grade roll-setting gear.
2, because right-handed thread screw rod B will be rotated, and be again again contained on cylinder block.This just requires first to be come by the screw connection disassembling of right-handed thread screw rod B and cylinder block, and further facilitate rotation right-handed thread screw rod B then needs cylinder assembly to disassemble from clamping fixture seat.After adjusting, assembling is gone back successively again, and this can increase the workload of operating personnel undoubtedly.
Utility model content
From above-mentioned background technology, compressing fixture of the prior art regulates in the regulative mode of the upper-lower compacting stroke distances of compressor arm (22) in the length by adjustment connecting rod assembly, the length of connecting rod assembly can only regulate according to the pitch multiple of its connecting thread, cannot realize step-less adjustment.Meanwhile, adjustment process needs to carry out dismounting to connecting rod assembly, adds the workload of operating personnel.
For solving the aforementioned problems in the prior, the utility model provides a kind of stepless quick adjustable distance fixture, comprising:
Cylinder (11) is fixed on cylinder block (14), and one end of compressor arm (22) and cylinder expansion link (16) are flexibly connected; The other end of compressor arm (22) is connected with the movable upper end of connecting rod assembly; The lower end of described connecting rod assembly is connected with cylinder block (14) by screw (26);
Described connecting rod assembly comprises: thread screw A(30), screw locknut (34), thread screw B(35), left-right rotary threaded sleeve rod C(36);
Thread screw A(30) upper end be connected with compressor arm (22) by pin (21);
Thread screw A(30) lower end and left-right rotary threaded sleeve rod C(36) upper screwed hole be connected; Screw locknut (34) is set in thread screw A(30) on;
Left-right rotary threaded sleeve rod C(36) lower screwed hole and thread screw B(35) be connected;
Thread screw B(35) lower end is connected with cylinder block (14) by screw (26).
Wherein, thread screw A(30) with described thread screw B(35) hand of spiral contrary; Thread screw A(30) be right-handed thread screw rod, thread screw B(35) be left hand thread screw rod; Or thread screw A(30) be left hand thread screw rod, thread screw B(35) be right-handed thread screw rod.
Wherein, screw locknut (34) is located at thread screw A(30 by thread bush) on, and left-right rotary threaded sleeve rod C(36 can be adjacent to by rotation) upper surface.
Wherein, left-right rotary threaded sleeve rod C(36) screw thread up and down in screwed hole respectively with described thread screw A(30) lower end, thread screw B(35) screw thread of upper end mates.
Wherein, cylinder block (14) is by being fixed on clamping fixture seat (15).
Wherein, left-right rotary threaded sleeve rod C(36) upper surface higher than the upper surface of described clamping fixture seat (15).
Wherein, levy and be, described left-right rotary threaded sleeve rod C(36) sidewall on be at least processed with pair of parallel.
The stepless quick adjustable distance fixture that the utility model provides is compared with compressing fixture of the prior art, have modified the structural design of connecting rod assembly, add left-right rotary threaded sleeve rod C, utilize the rotation of left-right rotary threaded sleeve rod C that thread screw A and thread screw B can be made to elongate or shorten simultaneously, realize step-less adjustment.Meanwhile, because the upper surface of left-right rotary threaded sleeve rod C is higher than the upper surface of described clamping fixture seat, so operating personnel need to carry out dismounting, handled easily to connecting rod assembly when regulating.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is compressing fixture front view of the prior art;
Fig. 2 is compressing fixture top view of the prior art;
Fig. 3 is compressing fixture profile of the prior art;
Fig. 4 is the partial enlarged drawing of compressing fixture profile of the prior art;
Fig. 5 is hold-down mechanism stereogram in compressing fixture of the prior art;
Fig. 6 is the stepless quick adjustable distance fixture front view that the utility model provides;
Fig. 7 is the stepless quick adjustable distance fixture profile that the utility model provides;
Fig. 8 is the stepless quick adjustable distance fixture profile partial enlarged drawing that the utility model provides;
Fig. 9 is the stepless quick adjustable distance clamp pressing mechanism stereogram that the utility model provides;
Figure 10 is the stepless quick adjustable distance fixture left-right rotary threaded sleeve rod C profile that the utility model provides;
Figure 11 is the stepless quick adjustable distance fixture left-right rotary threaded sleeve rod C top view that the utility model provides.
Reference numeral:
10-work piece; 11-cylinder; 12-screw A; 13-screw B; 14-cylinder block;
15-clamping fixture seat; 16-Telescopic-cylinder bar; 17-screw B; 18-screw A;
20-right-handed thread screw rod A; 21-pin; 22-compressor arm; 23-pin;
24-right-handed thread screw locknut; 25-right-handed thread screw rod B; 26-screw;
30-thread screw A; 34-screw locknut; 35-thread screw B;
36-left-right rotary threaded sleeve rod C;
Detailed description of the invention
The stepless quick adjustable distance fixture that the utility model provides is compared with compressing fixture of the prior art, have modified the structural design of connecting rod assembly, add left-right rotary threaded sleeve rod C, utilize the rotation of left-right rotary threaded sleeve rod C that thread screw A and thread screw B can be made to elongate or shorten simultaneously, realize step-less adjustment.Meanwhile, because the upper surface of left-right rotary threaded sleeve rod C is higher than the upper surface of described clamping fixture seat, so operating personnel need to carry out dismounting, handled easily to connecting rod assembly when regulating.
See Fig. 6 ~ 9, Fig. 6 is the stepless quick adjustable distance fixture front view that the utility model provides; Fig. 7 is the stepless quick adjustable distance fixture profile that the utility model provides; Fig. 8 is the stepless quick adjustable distance fixture profile partial enlarged drawing that the utility model provides; Fig. 9 is the stepless quick adjustable distance clamp pressing mechanism stereogram that the utility model provides.
In figure, 10-work piece; 11-cylinder; 12-screw A; 13-screw B; 14-cylinder block; 15-clamping fixture seat; 16-Telescopic-cylinder bar; 17-screw B; 18-screw A; 20-right-handed thread screw rod A; 21-pin; 22-compressor arm; 23-pin; 24-right-handed thread screw locknut; 25-right-handed thread screw rod B; 26-screw; 30-thread screw A; 34-screw locknut; 35-thread screw B; 36-left-right rotary threaded sleeve rod C.
As shown in the figure, this stepless quick adjustable distance clamp structure is as follows: cylinder 11 is locked on cylinder block 14 by screw A12,18, and one end of compressor arm 22 is flexibly connected by pin 23 and cylinder expansion link 16; The other end of compressor arm 22 is connected with the movable upper end of connecting rod assembly by pin 21; The lower end of described connecting rod assembly is connected with cylinder block 14 by screw 26.
Described connecting rod assembly comprises: thread screw A30, screw locknut 34, thread screw B35, left-right rotary threaded sleeve rod C36; The upper end of thread screw A30 is connected with compressor arm 22 by pin 21; Thread screw A30 lower end is connected with the upper screwed hole of left-right rotary threaded sleeve rod C36; Screw locknut 34 is set on thread screw A30; The lower screwed hole of left-right rotary threaded sleeve rod C36 is connected with thread screw B35; Thread screw B35 lower end is connected with cylinder block 14 by screw 26.
Thread screw A30 is right-handed thread screw rod, and thread screw B35 is left hand thread screw rod; Or thread screw A30 is left hand thread screw rod, thread screw B35 is right-handed thread screw rod.Screw thread in the upper and lower screwed hole of described left-right rotary threaded sleeve rod C36 mates with the screw thread of described thread screw A30 lower end, thread screw B35 upper end respectively.
It will be understood by those skilled in the art that, the utility model provides fixture to have modified the structural design of connecting rod assembly, add left-right rotary threaded sleeve rod C36, utilize that the rotation of left-right rotary threaded sleeve rod C36 can make thread screw A30, thread screw B35 elongates or shortens simultaneously simultaneously.Because left-right rotary threaded sleeve rod C36 does not need to be connected and fixed with other mechanism except thread screw A30, thread screw B35, so the anglec of rotation of left-right rotary threaded sleeve rod C36 is unrestricted, the length that the thread screw A30 made, thread screw B35 elongate or shorten simultaneously does not also limit by pitch or the number of turns, realizes stepless speed changing adjustment.
Further, in the stepless quick adjustable distance fixture that the utility model embodiment provides, screw locknut 34 is located on thread screw A30 by thread bush, and can by rotating the upper surface being adjacent to left-right rotary threaded sleeve rod C36.And cylinder block 14 is by after being fixed on clamping fixture seat 15, the upper surface of described left-right rotary threaded sleeve rod C36 is higher than the upper surface of described clamping fixture seat 15.
It will be appreciated by persons skilled in the art that because left-right rotary threaded sleeve rod C36 and screw locknut 34 are all higher than the upper surface of described clamping fixture seat 15, so when regulating the length of connecting rod assembly, just thread screw B and cylinder block need not be dismantled.When regulating connecting rod length component, directly unclamp screw locknut 34, connecting rod assembly is regulated by rotating left-right rotary threaded sleeve rod C36, screw screw locknut 34 to left-right rotary threaded sleeve rod C36 upper surface after adjusting again to be locked, the convenient clamping stroke regulating compressor arm when Fixture assembly is good.
Further, see the left-right rotary threaded sleeve rod C profile that Figure 10 and 11, Figure 10 provides for the utility model; The left-right rotary threaded sleeve rod C top view that Figure 11 provides for the utility model.As shown in the figure,
Described left-right rotary threaded sleeve rod C respectively has a screwed hole up and down, and the sidewall of left-right rotary threaded sleeve rod C is at least processed with pair of parallel, uses instrument to assist when being convenient to rotate left-right rotary threaded sleeve rod C.
To sum up, the stepless quick adjustable distance fixture that the utility model provides has the following advantages:
1, each when regulating the length of connecting rod assembly, only need to rotate to regulate left-right rotary threaded sleeve rod C, and left-right rotary threaded sleeve rod C when rotation to arbitrarily angled or position, can lock the length of connecting rod assembly by threaded lock nut.It doesn't matter for the length regulated and pitch or the number of turns, namely achieves stepless speed changing adjustment function.
2, the left-right rotary thread screw sleeve C increased has exceeded the end face of clamping fixture seat, and is processed with two parallel surfaces, so by manual or rotates left-right rotary thread screw sleeve C very like a cork by instrument, realize the regulatory function of adjustment to connecting rod length component.Unlike being dismounting thread screw B and cylinder block in adjustment, realize the function of quick adjustable distance.
More than that better enforcement of the present utility model is illustrated, but the utility model is created and is not limited to embodiment, those of ordinary skill in the art also can make all equivalent variations or replacement under the prerequisite without prejudice to the utility model spirit, and these equivalent modification or replacement are all included in the application's claim limited range.
Claims (7)
1. a stepless quick adjustable distance fixture, is characterized in that, comprising:
Cylinder (11) is fixed on cylinder block (14), and one end of compressor arm (22) and cylinder expansion link (16) are flexibly connected; The other end of compressor arm (22) is connected with the movable upper end of connecting rod assembly; The lower end of described connecting rod assembly is connected with cylinder block (14) by screw (26);
Described connecting rod assembly comprises: thread screw A(30), screw locknut (34), thread screw B(35), left-right rotary threaded sleeve rod C(36);
Thread screw A(30) upper end be connected with compressor arm (22) by pin (21);
Thread screw A(30) lower end and left-right rotary threaded sleeve rod C(36) upper screwed hole be connected; Screw locknut (34) is set in thread screw A(30) on;
Left-right rotary threaded sleeve rod C(36) lower screwed hole and thread screw B(35) be connected;
Thread screw B(35) lower end is connected with cylinder block (14) by screw (26).
2. stepless quick adjustable distance fixture as claimed in claim 1, is characterized in that, described thread screw A(30) with described thread screw B(35) hand of spiral contrary;
Thread screw A(30) be right-handed thread screw rod, thread screw B(35) be left hand thread screw rod; Or thread screw A(30) be left hand thread screw rod, thread screw B(35) be right-handed thread screw rod.
3. stepless quick adjustable distance fixture as claimed in claim 1, is characterized in that, described screw locknut (34) is located at thread screw A(30 by thread bush) on, and left-right rotary threaded sleeve rod C(36 can be adjacent to by rotation) upper surface.
4. stepless quick adjustable distance fixture as claimed in claim 1, is characterized in that, described left-right rotary threaded sleeve rod C(36) screw thread up and down in screwed hole respectively with described thread screw A(30) lower end, thread screw B(35) screw thread of upper end mates.
5. stepless quick adjustable distance fixture as claimed in claim 1, is characterized in that, described cylinder block (14) is by being fixed on clamping fixture seat (15).
6. stepless quick adjustable distance fixture as claimed in claim 5, is characterized in that, described left-right rotary threaded sleeve rod C(36) upper surface higher than the upper surface of described clamping fixture seat (15).
7. the stepless quick adjustable distance fixture according to any one of claim 1 to 6, is characterized in that, described left-right rotary threaded sleeve rod C(36) sidewall on be at least processed with pair of parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420566746.4U CN204277565U (en) | 2014-09-29 | 2014-09-29 | A kind of stepless quick adjustable distance fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420566746.4U CN204277565U (en) | 2014-09-29 | 2014-09-29 | A kind of stepless quick adjustable distance fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204277565U true CN204277565U (en) | 2015-04-22 |
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ID=52860761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420566746.4U Expired - Fee Related CN204277565U (en) | 2014-09-29 | 2014-09-29 | A kind of stepless quick adjustable distance fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204277565U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105397693A (en) * | 2015-12-31 | 2016-03-16 | 重庆明高机械制造有限公司 | Positioning block height adjusting mechanism of sealing tool |
-
2014
- 2014-09-29 CN CN201420566746.4U patent/CN204277565U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105397693A (en) * | 2015-12-31 | 2016-03-16 | 重庆明高机械制造有限公司 | Positioning block height adjusting mechanism of sealing tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20150422 Termination date: 20160929 |