CN204108868U - Upper cantilever adjustable bow fixture - Google Patents
Upper cantilever adjustable bow fixture Download PDFInfo
- Publication number
- CN204108868U CN204108868U CN201420527808.0U CN201420527808U CN204108868U CN 204108868 U CN204108868 U CN 204108868U CN 201420527808 U CN201420527808 U CN 201420527808U CN 204108868 U CN204108868 U CN 204108868U
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- China
- Prior art keywords
- upper cantilever
- hole
- screw rod
- screw
- clamp body
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- Expired - Fee Related
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Abstract
The utility model relates to a kind of upper cantilever adjustable bow fixture, comprise clamp body, both sides, upper cantilever upper surface are respectively provided with a through hole, one side through hole is set with clamp body and is flexibly connected, screw rod is provided with in opposite side through hole, screw rod axial line overlaps with through hole center line, the part that screw rod is positioned at above upper cantilever is provided with boosting-rod, boosting-rod is vertical with screw rod to be arranged, the partial fixing that screw rod is positioned at below upper cantilever is connected with screw ball head, screw ball head outer circumference surface has been threaded nut, top board is fixedly connected with below screw ball head, the lower surface of nut contacts with the upper surface of top board.Fixture upper cantilever along clamp body column up-down adjustment, can realize the quick position of top board, and behind location, rotary screw can realize clamping, reduces the stroke of screw rod in clamping process, shortens the clamping working time, increases work efficiency.
Description
Technical field
The utility model relates to a kind of bent clamp, particularly relates to a kind of upper cantilever adjustable bow fixture, belongs to field of machining.
Background technology
Bent clamp is that in machining welding processing mould molding, widely used a kind of fixture structure is simple, and operation side is depending on realizing the positioning and clamping such as machined piece, welding work pieces and mould.Its structure of existing bent clamp is as follows, by clamp body, screw rod and pressing plate three part composition, wherein clamp body structure archwise, lower cantalever contacts with by bottom clamping workpiece, upper cantilever is for installing screw rod, screw rod is connected with pressing plate. during clamping operation, and the length of being stretched out by adjusting screw(rod), thus the workpiece of clamping differing heights, screw end head is connected by sphere with top board, can realize the clamping of the workpiece of arbitrary surface.In use there are the following problems for existing bent clamp: 1 fixture versatility is poor, and the workpiece fixing corresponding differing heights due to fixture tool jaw size need choose the fixture of different size; When 2 clamping operation strokes are larger, clamping process is longer. and use during fixture clamping workpiece and need rotary screw, until workpiece is compacted, when screw stroke is longer, the required clamping operation time is also longer; 3 screw rod Long-Time Service serious wear, existing bent clamp relies on screw rod to realize clamping, the trapezoidal screw of screw rod has the characteristic of self-locking, but the trapezoidal screw of screw rod can produce wearing and tearing in Long-Time Service process, particularly poor by fourth working environment when weld job and machine add operation, screw rod wearing and tearing are more serious, after screw rod wearing and tearing, the pressure angle increase of trapezoidal thread causes self-lock ability to decline, the normal use of fixture will be affected, cause workpiece not to be fixedly clamped completely, the serious fixture that will cause is scrapped; 4. top board easily damages, and top board and screw end head adopt sphere to be connected, and top board has the larger free degree, in use easily causes unbalance stress cause stressed too concentrating and cause contact surface to damage.
utility model content
The technical problems to be solved in the utility model is to provide a kind of upper cantilever adjustable bow fixture, upper cantilever is processed with separately rectangle inclined hole, cantilever can be free to slide on clamp body column, in use, by slip upper cantilever, the quick position of top board can be realized, increase work efficiency, extend fixture service life.
For overcoming the above problems, concrete technical scheme of the present utility model is as follows: a kind of upper cantilever adjustable bow fixture, comprise clamp body, both sides, upper cantilever upper surface are respectively provided with a through hole, one side through hole is set with clamp body and is flexibly connected, screw rod is provided with in opposite side through hole, screw rod axial line overlaps with through hole center line, the part that screw rod is positioned at above upper cantilever is provided with boosting-rod, boosting-rod is vertical with screw rod to be arranged, the partial fixing that screw rod is positioned at below upper cantilever is connected with screw ball head, screw ball head outer circumference surface has been threaded nut, pressing plate is fixedly connected with below screw ball head, the lower surface of nut contacts with the upper surface of pressing plate.Fixture upper cantilever along clamp body column up-down adjustment, can realize the quick position of top board, and behind location, rotary screw can realize clamping, reduces the stroke of screw rod in clamping process, shortens the clamping working time, increases work efficiency.
Preferably, it is rectangle inclined hole that described upper cantilever and clamp body are set with the through hole be flexibly connected, and rectangle inclined hole inwall is be provided with the inclined-plane of with respect to the horizontal plane 87 °, and opposite side through hole is manhole.Rectangle inclined hole is used for being set with clamp body column, and inclined hole inwall is with constant slope, and screw acting increases in the normal pressure on locking face, and inclined-plane is larger to the frictional force of clamp body column, can realize fast self-locking.
Preferably, described rectangular through-hole height is less than manhole.
Preferably, described rectangle inclined hole maximum length direction length is greater than clamp body column cross-section length, and inclined hole width is greater than clamp body column width.Be convenient to upper cantilever coordinate with clamp body column and be set with.
Preferably, elastic device is provided with between described screw ball head and pressing plate.The pressure making to act on screw rod is more even, extends the service life of screw rod, thus extends the service life of fixture.
Preferably, described elastic device is spring.
The beneficial effect that the utility model brings is: 1 fixture highly versatile, because fixture jaw size is not fixed, and the workpiece of the applicable fourth differing heights of same fixture;
2, clamp operation is easy, because fixture upper cantilever is adjustable, the quick position of top board can be realized, behind location, rotary screw can realize clamping, greatly reduce the stroke of screw rod in clamping process, thus shorten the time of clamping work: 3, screw rod promotes service life, because in the use procedure of fixture, fixture quick position can be realized by mobile upper cantilever, rotate spiral shell material 2 to 3 circle behind location and get final product clamping work pieces, screw rod access times reduce, thus by effective lift-bolt service life, reduce the wearing and tearing of screw rod, extend the service life of fixture.
Accompanying drawing explanation
Fig. 1 is the structural representation of upper cantilever adjustable bow fixture.
Fig. 2 is the partial schematic diagram of Fig. 1.
Fig. 3 is the front view of upper cantilever.
Fig. 4 is the stereogram of upper cantilever.
Wherein, 1-clamp body, 2-upper cantilever, 3-screw rod, 4-boosting-rod, 5-screw ball head, 6-top board, 7-spring, 8-rectangle inclined hole, 9-manhole, 10-nut.
Detailed description of the invention
A kind of upper cantilever adjustable bow fixture, comprise clamp body 1, it is characterized in that: both sides, upper cantilever 2 upper surface are respectively provided with a through hole, one side through hole is set with clamp body 1 and is flexibly connected, screw rod 3 is provided with in opposite side through hole, screw rod 3 axial line overlaps with through hole center line, screw rod 3 part be positioned at above upper cantilever 2 is provided with boosting-rod 4, boosting-rod 4 is vertical with screw rod 3 to be arranged, screw rod 3 partial fixing be positioned at below upper cantilever 2 is connected with screw ball head 5, screw ball head 5 outer circumference surface has been threaded nut 10, top board 6 is fixedly connected with below screw ball head 5, the lower surface of nut 10 contacts with the upper surface of top board 6.Upper cantilever 2 is processed separately, there is rectangle inclined hole 8 upper cantilever 2 upper surface for being set with clamp body 1, rectangle inclined hole 8 maximum length direction length is greater than clamp body 1 column cross-section length, rectangle inclined hole 8 width is greater than clamp body 1 column width, upper cantilever 2 can be free to slide on the column of clamp body 1, in use, by slip upper cantilever 2, the quick position of top board 6 can be realized, when after top board and workpiece to be machined surface contact, rotary screw 3, top board 6 and workpiece to be machined that screw rod 3 lower end is arranged fit tightly, make upper cantilever 2 change with the column post angle of clamp body 1 simultaneously, thus the inclined-plane of rectangle inclined hole 8 is contacted with clamp body 1 column, the normal pressure that now screw rod 3 acts on inclined-plane increases, inclined-plane reverse friction power is also along with increase, now upper cantilever 2 completes self-locking.
Preferably, it is rectangle inclined hole 8 that described upper cantilever 2 and clamp body 1 are set with the through hole be flexibly connected, and rectangle inclined hole 8 inwall is be provided with the inclined-plane of with respect to the horizontal plane 87 °, and opposite side through hole is manhole 9.
Preferably, described rectangular through-hole 8 is highly less than manhole 9.
Preferably, described rectangle inclined hole 8 maximum length direction length is greater than clamp body 1 column cross-section length, and the width of rectangle inclined hole 8 is greater than the width of clamp body 1 column.
Preferably, elastic device is provided with between described screw ball head 5 and top board 6.
Preferably, described elastic device is spring 7.Spring 7 plays cushioning effect, and decomposition pressure, makes being applied on workpiece to be machined of the pressure uniform on screw rod 3 simultaneously.
Claims (6)
1. a upper cantilever adjustable bow fixture, comprise clamp body, it is characterized in that: both sides, upper cantilever upper surface are respectively provided with a through hole, one side through hole is set with clamp body and is flexibly connected, screw rod is provided with in opposite side through hole, screw rod axial line overlaps with through hole center line, the part that screw rod is positioned at above upper cantilever is provided with boosting-rod, boosting-rod is vertical with screw rod to be arranged, the partial fixing that screw rod is positioned at below upper cantilever is connected with screw ball head, screw ball head outer circumference surface has been threaded nut, top board is fixedly connected with below screw ball head, the lower surface of nut contacts with the upper surface of top board.
2. upper cantilever adjustable bow fixture as claimed in claim 1, it is characterized in that: it is rectangle inclined hole that described upper cantilever and clamp body are set with the through hole be flexibly connected, rectangle inclined hole inwall is be provided with the inclined-plane of with respect to the horizontal plane 87 °, and opposite side through hole is manhole.
3. upper cantilever adjustable bow fixture as claimed in claim 2, is characterized in that: described rectangular through-hole height is less than manhole.
4. upper cantilever adjustable bow fixture as claimed in claim 2, is characterized in that: described rectangle inclined hole maximum length direction length is greater than clamp body column cross-section length, and inclined hole width is greater than clamp body column width.
5. upper cantilever adjustable bow fixture as claimed in claim 1, is characterized in that: be provided with elastic device between described screw ball head and pressing plate.
6. upper cantilever adjustable bow fixture as claimed in claim 5, is characterized in that: described elastic device is spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420527808.0U CN204108868U (en) | 2014-09-15 | 2014-09-15 | Upper cantilever adjustable bow fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420527808.0U CN204108868U (en) | 2014-09-15 | 2014-09-15 | Upper cantilever adjustable bow fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204108868U true CN204108868U (en) | 2015-01-21 |
Family
ID=52326223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420527808.0U Expired - Fee Related CN204108868U (en) | 2014-09-15 | 2014-09-15 | Upper cantilever adjustable bow fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204108868U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105215584A (en) * | 2015-09-30 | 2016-01-06 | 昆山宝锦激光拼焊有限公司 | A kind of quick position tool |
| CN108730839A (en) * | 2018-06-08 | 2018-11-02 | 东莞市闻誉实业有限公司 | Horizontal projection lamp fitting |
| CN113799021A (en) * | 2021-10-13 | 2021-12-17 | 长春汽车工业高等专科学校 | Automobile glass tool clamp |
-
2014
- 2014-09-15 CN CN201420527808.0U patent/CN204108868U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105215584A (en) * | 2015-09-30 | 2016-01-06 | 昆山宝锦激光拼焊有限公司 | A kind of quick position tool |
| CN108730839A (en) * | 2018-06-08 | 2018-11-02 | 东莞市闻誉实业有限公司 | Horizontal projection lamp fitting |
| CN113799021A (en) * | 2021-10-13 | 2021-12-17 | 长春汽车工业高等专科学校 | Automobile glass tool clamp |
| CN113799021B (en) * | 2021-10-13 | 2023-02-03 | 长春汽车工业高等专科学校 | Automobile glass tool clamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 Termination date: 20170915 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |