CN103624679A - Eccentric-shaft clamping device - Google Patents
Eccentric-shaft clamping device Download PDFInfo
- Publication number
- CN103624679A CN103624679A CN201310580459.9A CN201310580459A CN103624679A CN 103624679 A CN103624679 A CN 103624679A CN 201310580459 A CN201310580459 A CN 201310580459A CN 103624679 A CN103624679 A CN 103624679A
- Authority
- CN
- China
- Prior art keywords
- eccentric
- clamping device
- eccentric shaft
- lever
- clamping
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention relates to a clamping device, in particular to an eccentric-shaft clamping device. The eccentric-shaft clamping device comprises a base, a handle, a transmission mechanism and clamping mechanisms. The transmission mechanism comprises an eccentric shaft, a lever and a rotating shaft which penetrates through the eccentric shaft and is connected with the base in a rotatable mode. The number of the clamping mechanisms is two. Each clamping mechanism comprises a guide column provided with a cavity, a screw penetrating through the guide column and a clamping head connected to the upper end of the screw, wherein the screw is sleeved with a reset spring. The two ends of the lever are fixedly connected with the lower ends of the screws of the clamping mechanisms respectively. The eccentric-shaft clamping device clamps a workpiece from two sides and the clamped workpiece is stable in the process of machining.
Description
Technical field
The present invention relates to a kind of clamping device, be specifically related to a kind of eccentric shaft clamping device.
Background technology
On lathe, during processing work, conventionally to use fixture that workpiece is fixed, so the effect of jig is very important.And the core of jig is clamping device.In common clamping device, eccentric clamping device not only has self-locking and power enlarging function, and have the advantages such as simple in structure, anufacturability good, easy to operate, clamping process is rapid, thereby it has obtained application very widely in mechanical manufacturing field.
But when existing eccentric clamping device is used, conventionally a position that can only holding workpiece, if Granted publication number is in the eccentric clamping fixture of CN 202192511U, comprise base plate, location-plate, pressing plate, eccentric shaft, handle and clamp, workpiece clamps by a clamp, adds the workpiece being held man-hour unstable.
Summary of the invention
The defect existing for above-mentioned prior art, the object of the present invention is to provide a kind of eccentric shaft clamping device, and this clamping device by piece-holder, adds the workpiece being held man-hour more stable from both sides.
For achieving the above object, technical scheme of the present invention is: eccentric shaft clamping device, comprise pedestal, handle, transmission mechanism and clamp mechanism, wherein, the rotating shaft that described transmission mechanism comprises eccentric shaft, lever and runs through eccentric shaft and be rotationally connected with pedestal, the side contacts that described lever and eccentric shaft eccentric throw are little; Two clamp mechanism are set, and described clamp mechanism comprises lead with cavity, run through the screw rod of lead and be connected in the clamping head of screw rod upper end; On described screw rod, be arranged with back-moving spring, the two ends of described lever are fixedly connected with the screw rod lower end of two clamp mechanism respectively.
While adopting technique scheme, pull handle, the rotating shaft being fixedly connected with handle one end is rotated, eccentric shaft rotates with rotating shaft, eccentric shaft increases towards the eccentric throw of lever one side, and the downward component of eccentric shaft promotes lever downwards, and lever pulls the screw rod of both sides clamp mechanism to move down, two clamping heads move down, from both sides by Workpiece clamping.The present invention is by two clamping heads while holding workpieces, and the workpiece being held is more stable.
Further, the pedestal of described clamping head below is provided with elastic cushion block, and in clamping process, elastic cushion block can not only avoid workpiece to slide in the horizontal direction, and can prevent that workpiece bottom is stressed large.
Further, described screw rod is all threaded with clamping head, lever, and this connected mode is convenient to maintenance and changes the parts of clamp mechanism.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
Fig. 1 is the structural representation of eccentric shaft clamping device embodiment of the present invention.
The specific embodiment
As shown in Figure 1, an eccentric shaft clamping device, comprises pedestal 1, handle 2, transmission mechanism and clamp mechanism, wherein, the rotating shaft 3 that transmission mechanism comprises eccentric shaft 4, lever 9 and runs through eccentric shaft 4 and be rotationally connected with pedestal 1, the side contacts that lever 9 is little with eccentric shaft 4 eccentric throws; Two clamp mechanism are set, and clamp mechanism comprises lead 5 with cavity, run through the screw rod 7 of lead 5 and be threadedly connected to the clamping head 6 of screw rod 7 upper ends, and the pedestal 1 of clamping head 6 belows is provided with elastic cushion block 10; On screw rod 7, be arranged with back-moving spring 8, back-moving spring 8 lower ends are fixed in the cavity of lead 5, and upper end is connected on screw rod 7.The two ends of lever 9 are fixedly connected with the screw rod 7 lower end screw threads of two clamp mechanism respectively.
Specific works flow process:
State shown in Fig. 1 is that clamping head 6 is in clamp position.As shown in Figure 1, pull clockwise handle 2, the rotating shaft 3 being fixedly connected with handle 2 one end clockwise rotates, and eccentric shaft 4 rotates with rotating shaft 3 simultaneously, and the eccentric throw of eccentric shaft 4 engagement lever 9 one sides increases, the downward component of eccentric shaft 4 promotes lever 9 downwards, the screw rod 7 that lever 9 promotes both sides clamp mechanism moves down, and now, two clamping heads 6 move down, from both sides by workpiece 11, clamp, the back-moving spring 8 being sheathed on screw rod 7 is compressed.Release handle 2, the compressed back-moving spring 8 on screw rod 7 upwards resets, and on lead-screw 7, moves, and now on clamping head 6, moves and workpiece 11 is unclamped.
Above-described is only the preferred embodiment of the present invention; should be understood that; for a person skilled in the art; do not departing under the prerequisite of structure of the present invention; can also make some distortion and improvement; these also should be considered as protection scope of the present invention, and these can not affect effect of the invention process and practical applicability.
Claims (3)
1. eccentric shaft clamping device, comprise pedestal, handle, transmission mechanism and clamp mechanism, it is characterized in that the rotating shaft that described transmission mechanism comprises eccentric shaft, lever and runs through eccentric shaft and be rotationally connected with pedestal, the side contacts that described lever and eccentric shaft eccentric throw are little; Two clamp mechanism are set, and described clamp mechanism comprises lead with cavity, run through the screw rod of lead and be connected in the clamping head of screw rod upper end; On described screw rod, be arranged with back-moving spring, the two ends of described lever are fixedly connected with the screw rod lower end of two clamp mechanism respectively.
2. eccentric shaft clamping device according to claim 1, is characterized in that, the pedestal of described clamping head below is provided with elastic cushion block.
3. eccentric shaft clamping device according to claim 1, is characterized in that, described screw rod is all threaded with clamping head, lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310580459.9A CN103624679A (en) | 2013-11-19 | 2013-11-19 | Eccentric-shaft clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310580459.9A CN103624679A (en) | 2013-11-19 | 2013-11-19 | Eccentric-shaft clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103624679A true CN103624679A (en) | 2014-03-12 |
Family
ID=50206318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310580459.9A Pending CN103624679A (en) | 2013-11-19 | 2013-11-19 | Eccentric-shaft clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103624679A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104070389A (en) * | 2014-07-15 | 2014-10-01 | 宁波湛京光学仪器有限公司 | Milling clamp die device for gear rack sliding seat |
| CN104175151A (en) * | 2014-08-10 | 2014-12-03 | 强胜精密机械(苏州)有限公司 | Eccentric shaft positioning clamping device and clamping method |
| CN104942730A (en) * | 2015-06-23 | 2015-09-30 | 黎明液压有限公司 | Handle pressing type clamping tool for filter element semi-finished filter screen |
| CN110842597A (en) * | 2019-10-16 | 2020-02-28 | 湖北三环锻造有限公司 | Positioning clamp structure of steering knuckle blank and using method thereof |
| CN113400153A (en) * | 2021-07-01 | 2021-09-17 | 中国航发贵州黎阳航空动力有限公司 | Blade handheld clamp and application thereof |
| CN113910655A (en) * | 2021-11-22 | 2022-01-11 | 深圳市海吉科技有限公司 | Bending machine |
-
2013
- 2013-11-19 CN CN201310580459.9A patent/CN103624679A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104070389A (en) * | 2014-07-15 | 2014-10-01 | 宁波湛京光学仪器有限公司 | Milling clamp die device for gear rack sliding seat |
| CN104175151A (en) * | 2014-08-10 | 2014-12-03 | 强胜精密机械(苏州)有限公司 | Eccentric shaft positioning clamping device and clamping method |
| CN104942730A (en) * | 2015-06-23 | 2015-09-30 | 黎明液压有限公司 | Handle pressing type clamping tool for filter element semi-finished filter screen |
| CN110842597A (en) * | 2019-10-16 | 2020-02-28 | 湖北三环锻造有限公司 | Positioning clamp structure of steering knuckle blank and using method thereof |
| CN113400153A (en) * | 2021-07-01 | 2021-09-17 | 中国航发贵州黎阳航空动力有限公司 | Blade handheld clamp and application thereof |
| CN113910655A (en) * | 2021-11-22 | 2022-01-11 | 深圳市海吉科技有限公司 | Bending machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140312 |