CN203887595U - Pneumatic three-jaw clamp - Google Patents
Pneumatic three-jaw clamp Download PDFInfo
- Publication number
- CN203887595U CN203887595U CN201420197962.6U CN201420197962U CN203887595U CN 203887595 U CN203887595 U CN 203887595U CN 201420197962 U CN201420197962 U CN 201420197962U CN 203887595 U CN203887595 U CN 203887595U
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- CN
- China
- Prior art keywords
- central shaft
- slide
- cylinder
- pneumatic
- bottom plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 210000000078 claw Anatomy 0.000 claims description 17
- 230000001360 synchronised effect Effects 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 206010061688 Barotrauma Diseases 0.000 description 1
- 206010044565 Tremor Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Gripping On Spindles (AREA)
Abstract
The utility model provides a pneumatic three-jaw clamp. The pneumatic three-jaw clamp comprises a circular bottom plate 1, a central shaft 2, a cylinder 3, a cross slide blocks 4, clamping jaws 5, link rings 6, slide grooves 7 and slide plates 8, and is characterized in that the central shaft 2 and the three slide grooves 7 are arranged on the centre of the surface A of the circular bottom plate 1; the central shaft 2 is connected with a machine tool spindle; one cross slide block 4 is arranged in each slide groove 7; one end of the cross slide block 4 is connected with one clamping jaw 5; the clamping jaws 5 are installed on the surface B of the circular bottom plate 1; the other end of the cross slide block 4 is connected with one slide plate 8; the circle centre end of the slide plate 8 is hinged with one link ring 6; the link ring 6 is installed on the central shaft 2; the head end and the tail end of the cylinder 3 are hinged to the two adjacent slide plates 8 respectively; the piston of the cylinder 3 shrinks to drive the clamping jaws 5 to clamp. The pneumatic three-jaw clamp provided by the utility model is capable of reliably guaranteeing the synchronous movements of the three clamping jaws, high in clampable dimensions, and capable of effectively improving the clamping accuracy and efficiency.
Description
Technical field
The utility model relates to a kind of pneumatic Three-jaw fixture field.
Background technology
On market, the general stroke of hydraulic pressure Three-jaw fixture and pneumatic Three-jaw fixture is shorter, and the large Heavy Weight of the general volume of large-sized Three-jaw fixture, improve application difficulty and application cost, wherein, the chucking power of hydraulic pressure scroll chuck is large, heavily cut stable, chucking power is large, shortcoming is dirty, noise is large, energy consumption is high, low pressure is difficult to adjust, two pneumatic scroll chucks are subject to effects of air pressure large, easily asynchronous between three-jaw, chuck chucking power is little, heavy cut clamping is unstable, advantage is pollution-free, size can be clamped large, low pressure is easy to adjust sensitive, less energy consumption, therefore clamping and selecting pneumatic scroll chuck in the situation that large-scale circular workpiece and required chucking power are less is good selection, but its clamp precision and each claw synchronism are affected by various factors easily, as air pressure shakiness, each cylinder piston motion is asynchronous and claw resistance to sliding is not equal, can cause between three claws asynchronous, just can not cause clamping, cause several quality problems, therefore design a kind of good reliability, the pneumatic Three-jaw fixture that clamp precision simple in structure is high is very necessary.
Summary of the invention
For solving the problems of the technologies described above, the utility model provides a kind of pneumatic Three-jaw fixture, specifically by the following technical solutions:
A kind of pneumatic Three-jaw fixture, comprise circular bottom plate, central shaft, cylinder, crosshead shoe, claw, connecting rod ring, chute and slide plate, it is characterized in that, in the A face of described circular bottom plate, be provided with in the heart central shaft and three chutes, described central shaft is connected with machine tool chief axis, in each chute, be provided with a crosshead shoe, one end of described crosshead shoe is all connected with claw, described claw is arranged on the B face of circular bottom plate, the other end of crosshead shoe all connects slide plate, center of circle end and the connecting rod ring of described slide plate are hinged, described connecting rod ring is arranged on central shaft, the two ends of described cylinder are hinged on respectively on two adjacent slide plates, the piston retraction of described cylinder drives claw to clamp.
Adopt technique scheme, three cylinder head and the tail are hinged on respectively on three slide plates, form an equilateral triangle, make every slide plate have two power sources, three slide plates are hinged by connecting rod ring again, single slide block just cannot move separately, even when therefore certain cylinder is not identical with other cylinder outputting powers, also can demonstrate,prove being synchronized with the movement of three slide blocks by connecting rod environmental protection, and then ensure that three claws are synchronized with the movement, improve clamp precision, this structure can be relatively easy to solve large-sized clamping problem, clamping size will just can be improved after corresponding expansions such as the stroke of the stroke of cylinder and chute, there are market prospects comparatively widely.
Brief description of the drawings
Fig. 1 is structure chart of the present utility model;
Fig. 2 is the left view of Fig. 1.
Detailed description of the invention
In order more clearly to understand above-mentioned purpose of the present utility model, feature and advantage, below in conjunction with the drawings and specific embodiments, the utility model is further described in detail.It should be noted that, in the situation that not conflicting, the feature in embodiment and the embodiment of present patent application can combine mutually.
As shown in Figure 1: a kind of pneumatic Three-jaw fixture, comprise circular bottom plate 1, central shaft 2, cylinder 3, crosshead shoe 4, claw 5, connecting rod ring 6, chute 7 and slide plate 8, it is characterized in that, in the A face of described circular bottom plate 1, be provided with in the heart central shaft 2 and three chutes 7, described central shaft 2 is connected with machine tool chief axis, in each chute 7, be provided with a crosshead shoe 4, one end of described crosshead shoe 4 is all connected with claw 5, described claw 5 is arranged on the B face of circular bottom plate 1, the other end of crosshead shoe 4 all connects slide plate 8, center of circle end and the connecting rod ring 6 of described slide plate 8 are hinged, described connecting rod ring 6 is arranged on central shaft 2, the two ends of described cylinder 3 are hinged on respectively on two adjacent slide plates 8, the piston retraction of described cylinder 3 drives claw 5 to clamp.
Three cylinder head and the tail are hinged on respectively on three slide plates, make every slide plate have two power sources, three slide plates are hinged by connecting rod ring again, single slide block just cannot move separately, even when therefore certain cylinder is not identical with other cylinder outputting powers, also can demonstrate,prove being synchronized with the movement of three slide blocks by connecting rod environmental protection, and then ensure that three claws are synchronized with the movement, improve clamp precision.
Above-described embodiment is to specific descriptions of the present utility model; only for the utility model is further described; can not be interpreted as the restriction to the utility model protection domain, the technician of this area according to the content of above-mentioned utility model to the utility model make some nonessential improvement and adjust all fall into protection domain of the present utility model within.
Claims (1)
1. a pneumatic Three-jaw fixture, comprise circular bottom plate (1), central shaft (2), cylinder (3), crosshead shoe (4), claw (5), connecting rod ring (6), chute (7) and slide plate (8), it is characterized in that, in the A face of described circular bottom plate (1), be provided with in the heart central shaft (2) and three chutes (7), described central shaft (2) is connected with machine tool chief axis, in each chute (7), be provided with a crosshead shoe (4), one end of described crosshead shoe (4) is all connected with claw (5), described claw (5) is arranged on the B face of circular bottom plate (1), the other end of crosshead shoe (4) all connects slide plate (8), the center of circle end of described slide plate (8) and connecting rod ring (6) are hinged, described connecting rod ring (6) is arranged on central shaft (2), the two ends of described cylinder (3) are hinged on respectively on adjacent two slide plates (8), the piston retraction of described cylinder (3) drives claw (5) to clamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420197962.6U CN203887595U (en) | 2014-04-23 | 2014-04-23 | Pneumatic three-jaw clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420197962.6U CN203887595U (en) | 2014-04-23 | 2014-04-23 | Pneumatic three-jaw clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203887595U true CN203887595U (en) | 2014-10-22 |
Family
ID=51714043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420197962.6U Expired - Lifetime CN203887595U (en) | 2014-04-23 | 2014-04-23 | Pneumatic three-jaw clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203887595U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107696058A (en) * | 2017-10-19 | 2018-02-16 | 浙江今跃机械科技开发有限公司 | Double-side type Three-jaw fixture and manipulator |
-
2014
- 2014-04-23 CN CN201420197962.6U patent/CN203887595U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107696058A (en) * | 2017-10-19 | 2018-02-16 | 浙江今跃机械科技开发有限公司 | Double-side type Three-jaw fixture and manipulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141022 |
|
| CX01 | Expiry of patent term |