CN216343209U - Low-friction clamping mechanism - Google Patents
Low-friction clamping mechanism Download PDFInfo
- Publication number
- CN216343209U CN216343209U CN202123008787.0U CN202123008787U CN216343209U CN 216343209 U CN216343209 U CN 216343209U CN 202123008787 U CN202123008787 U CN 202123008787U CN 216343209 U CN216343209 U CN 216343209U
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- China
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- main shaft
- torsion spring
- depression bar
- torsional spring
- sleeve
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Abstract
The utility model discloses a low-friction clamping mechanism, which comprises: the main shaft is arranged in the fixing seat, the pressure head is fixedly arranged on the pressure rod, the pressure rod is rotatably connected with the main shaft, two ends of the torsion spring are respectively limited on the fixing seat and the pressure rod and used for providing directional torsional force for the pressure rod, a rotatable torsion spring sleeve is arranged on the main shaft corresponding to two sides of the pressure rod, the torsion spring sleeve is sleeved on the torsion spring sleeve, and fixed gaps are reserved between the torsion spring sleeve and the fixing seat, between the pressure rod and the torsion spring sleeve, between the pressure rod and the main shaft and between the torsion spring sleeve and the main shaft; the limiting sleeves are arranged between the torsion spring sleeve and the fixed seat and between the torsion spring sleeve and the pressure rod, play a role in separating each moving part, have a positioning role and avoid dust generation due to friction between the moving parts.
Description
Technical Field
The utility model relates to the field of clamping mechanisms, in particular to a low-friction clamping mechanism.
Background
In the flat panel display industry, a physical vapor deposition technology is widely adopted to deposit metal and metal oxide film layers in the thin film transistor manufacturing process, when a large-size panel is deposited, glass is fixed on a carrying trolley by a clamping support (Clamp), friction between moving parts in the clamping support is high, and abrasion in the moving process generates tiny dust, so that foreign matters appear in the thin film deposition, and the device failure products are poor.
SUMMERY OF THE UTILITY MODEL
The utility model mainly solves the technical problems that: there is a problem of friction between moving parts in the clamping mechanism.
In order to solve the technical problems, the utility model adopts a technical scheme that: a low friction clamping mechanism comprising: fixing base, main shaft, torsional spring, pressure head and depression bar, the main shaft is installed in the fixing base, pressure head fixed mounting be in on the depression bar, the depression bar with the main shaft rotates to be connected, the both ends of torsional spring restrict respectively the fixing base with on the depression bar, be used for to the depression bar provides directional torsional force, correspond on the main shaft the both sides department of depression bar all is provided with rotatable torsional spring cover, the torsional spring cover is established torsional spring is sheathe in, torsional spring cover with between the fixing base the depression bar with between the torsional spring cover the depression bar with between the main shaft torsional spring cover with all there is the unchangeable clearance between the main shaft.
Further: the pressing rod is arranged between the main shafts and between the torsion spring sleeve and the main shafts, and clamping grooves for containing the bearings are formed in the pressing rod and the torsion spring sleeve.
Further: the two end faces of the torsion spring sleeve are provided with the bearings, and the two end faces of the joint of the pressure lever and the main shaft are provided with the bearings.
Further: the main shaft between the torsion spring sleeve and the fixing seat is sleeved with a first limiting sleeve, one end of the first limiting sleeve is in contact with the fixing seat, and the other end of the first limiting sleeve is in contact with the inner ring of the bearing.
Further: the main shaft between the torsion spring sleeve and the pressure rod is sleeved with a second limiting sleeve, and two ends of the second limiting sleeve are respectively contacted with the inner rings of the bearings on two sides of the second limiting sleeve.
Further: and only the outer ring of the bearing is contacted with a clamping groove in the torsion spring sleeve or the pressure rod.
Further: and a shifting lever is arranged at one end of the pressure lever, which is far away from the pressure head, and the shifting lever and the pressure lever are respectively positioned at two sides of the main shaft.
The utility model has the beneficial effects that:
in this application, the torsional spring is installed on the torsional spring cover, limiting displacement has, between torsional spring cover and the main shaft, between depression bar and the main shaft, all use the bearing to separate, in order to reduce friction, in addition, between torsional spring cover and fixing base, between torsional spring cover and depression bar, be provided with the stop collar, the inner circle contact of stop collar and bearing, and depression bar and torsional spring cover all be the outer lane contact with the bearing, play the effect of separating each moving part, and have the positioning action, avoid having the friction between the moving part, produce the dust.
Drawings
FIG. 1 is a schematic view of a low friction clamping mechanism according to the present invention;
fig. 2 is a cross-sectional view of the present invention.
The parts in the drawings are numbered as follows: 1-a fixed seat, 2-a main shaft, 3-a torsion spring, 4-a pressure lever, 5-a pressure head, 6-a deflector rod, 7-a torsion spring sleeve, 8-a first limit sleeve, 9-a bearing and 10-a second limit sleeve.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the utility model easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the utility model.
Referring to fig. 1 and 2, an embodiment of the present invention includes:
the utility model provides a low friction fixture, includes fixing base 1, main shaft 2, torsional spring 3 and depression bar 4, main shaft 2 installs in fixing base 1, depression bar 4 rotate connect in on the main shaft 2, keep away from the one end of fixing base 1 on the depression bar 4 and install pressure head 5, pressure head 5 is used for low friction fixture is when carrying out centre gripping product, pressure head 5 and product contact, the both sides of depression bar 4 all are provided with torsional spring cover 7, 7 covers of torsional spring cover are established on main shaft 2, two all the cover is equipped with torsional spring 3 on torsional spring cover 7, and the one end restriction of torsional spring 3 is on fixing base 1, and the other end restriction of torsional spring 3 is on depression bar 4, and torsional spring 3 is used for low friction fixture is when carrying out centre gripping product, to the power towards the product is applyed to depression bar 4.
And a shifting lever 6 is arranged at one end of the pressure lever 4 far away from the pressure head 5, and the shifting lever 6 and the pressure lever 4 are respectively positioned at two sides of the main shaft 2.
All be provided with a plurality of bearing 9 between depression bar 4 and the main shaft 2 and between torsional spring cover 7 and the main shaft 2, both ends department in torsional spring cover 7 and the depression bar 4 all is equipped with the draw-in groove that is used for installing bearing 9, it is spacing through first stop collar 8 between torsional spring cover 7 and the fixing base 1, torsional spring cover 7 with it is spacing through second stop collar 10 between the depression bar 4, first stop collar 8 and second stop collar 10 all with the inner circle contact of bearing 9 and not with the outer lane contact of bearing 9, and the draw-in groove with the outer lane contact of bearing 9 and not with the inner circle contact of bearing 9.
The clearance design between each moving part (depression bar 4, torsional spring cover 7), between each moving part and main shaft 2 uses stop collar bearing 9 inner circle department to carry on spacingly to each moving part is spacing through the outer lane of bearing 9, has guaranteed not to produce the friction when the motion between each moving part, thereby reduces fixture's production dirt.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. A low friction clamping mechanism comprising: fixing base, main shaft, torsional spring, pressure head and depression bar, the main shaft is installed in the fixing base, pressure head fixed mounting be in on the depression bar, the depression bar with the main shaft rotates to be connected, the both ends of torsional spring restrict respectively the fixing base with on the depression bar, be used for to the depression bar provides directional torsional force, a serial communication port, correspond on the main shaft the both sides department of depression bar all is provided with rotatable torsional spring cover, the torsional spring cover is established the torsional spring is sheathe in, torsional spring cover with between the fixing base the depression bar with between the torsional spring cover the depression bar with between the main shaft torsional spring cover with all there is the unchangeable clearance between the main shaft.
2. A low friction clamping mechanism according to claim 1, wherein: the pressing rod is arranged between the main shafts and between the torsion spring sleeve and the main shafts, and clamping grooves for containing the bearings are formed in the pressing rod and the torsion spring sleeve.
3. A low friction clamping mechanism according to claim 2, wherein: the two end faces of the torsion spring sleeve are provided with the bearings, and the two end faces of the joint of the pressure lever and the main shaft are provided with the bearings.
4. A low friction clamping mechanism according to claim 3, wherein: the main shaft between the torsion spring sleeve and the fixing seat is sleeved with a first limiting sleeve, one end of the first limiting sleeve is in contact with the fixing seat, and the other end of the first limiting sleeve is in contact with the inner ring of the bearing.
5. A low friction clamping mechanism according to claim 3, wherein: the main shaft between the torsion spring sleeve and the pressure rod is sleeved with a second limiting sleeve, and two ends of the second limiting sleeve are respectively contacted with the inner rings of the bearings on two sides of the second limiting sleeve.
6. A low friction clamping mechanism according to claim 2, wherein: and only the outer ring of the bearing is contacted with a clamping groove in the torsion spring sleeve or the pressure rod.
7. A low friction clamping mechanism according to claim 1, wherein: and a shifting lever is arranged at one end of the pressure lever, which is far away from the pressure head, and the shifting lever and the pressure lever are respectively positioned at two sides of the main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123008787.0U CN216343209U (en) | 2021-12-02 | 2021-12-02 | Low-friction clamping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123008787.0U CN216343209U (en) | 2021-12-02 | 2021-12-02 | Low-friction clamping mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216343209U true CN216343209U (en) | 2022-04-19 |
Family
ID=81157568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123008787.0U Active CN216343209U (en) | 2021-12-02 | 2021-12-02 | Low-friction clamping mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216343209U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115194341A (en) * | 2022-09-19 | 2022-10-18 | 飞全激光科技无锡有限公司 | Laser marking machine |
-
2021
- 2021-12-02 CN CN202123008787.0U patent/CN216343209U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115194341A (en) * | 2022-09-19 | 2022-10-18 | 飞全激光科技无锡有限公司 | Laser marking machine |
| CN115194341B (en) * | 2022-09-19 | 2022-12-13 | 飞全激光科技无锡有限公司 | Laser marking machine |
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