CN205271472U - Boss work piece clamping jig - Google Patents
Boss work piece clamping jig Download PDFInfo
- Publication number
- CN205271472U CN205271472U CN201520951959.3U CN201520951959U CN205271472U CN 205271472 U CN205271472 U CN 205271472U CN 201520951959 U CN201520951959 U CN 201520951959U CN 205271472 U CN205271472 U CN 205271472U
- Authority
- CN
- China
- Prior art keywords
- workpiece
- clamping
- work piece
- base
- pawl
- 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 - Fee Related
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Abstract
The utility model discloses a boss work piece clamping jig relates to anchor clamps, boss work piece clamping jig includes: platform, clamp part are placed to base, work piece, the work piece is placed the platform welding and is in on the base, and the work piece is placed bench side and is set up a constant head tank that is counter bore form, the clamp part includes three clamping mechanism altogether, and three clamping mechanism central symmetry is evenly arranged around the platform is placed to the work piece, clamping mechanism includes clamping jaw and drive handle, the clamping jaw is L shape, and the clamping jaw upper end presss from both sides tight end position and places bench side in work for pressing from both sides tight end, the clamping jaw lower extreme is provided with the screw thread, and the clamping jaw lower extreme passes the base, the drive handle is provided with the internal thread with clamping jaw matched with to not in the base below. Tight location is pressed from both sides so that the upper end is realized following by the work piece to this patent, when preventing that the drill bit from withdrawing from, and the pulling work piece.
Description
Technical field
The utility model relates to a kind of fixture, particularly relates to the clamping device of a kind of boss workpiece.
Background technology
Existing a kind of boss workpiece, need to hole, existing processing mode is the periphery of the clamp workpiece adopting clamping tiger's jaw formula, flat in order to make workpiece put, deflection does not occur, so the lower surface needing workpiece is adjacent to below fixture, so that after workpiece brill is worn, fixture can be got into, fixture is formed and destroys; And workpiece cannot be positioned by tiger's jaw formula fixture, so before Workpiece clamping is holed, location of workpiece first need to being rule; And when exiting drill bit after boring completes, owing to the contact area of fixture and workpiece is little, cause insufficient clamping force so that workpiece is always pulled by drill bit, make working accuracy become low.
Practical novel content
The utility model is intended to provide a kind of boss workpiece clamping device, so that workpiece realizes from upper end clamping and positioning, when preventing drill bit from exiting, pulls workpiece.
Base case boss workpiece clamping device of the present utility model comprises: base, workpiece placement station, clamping section; It is characterized in that, described workpiece placement station is welded on described base, and arranges a locating slot in heavy hole shape above workpiece placement station; Described clamping section comprises three clamping mechanisms altogether, and three clamping mechanisms are circumferentially evenly arranged in around workpiece placement station; Described clamping mechanism comprises folder pawl and driving handle; Folder pawl is L-shaped, and folder pawl upper end is pinching end, and pinching end is positioned at above work mounting table; The folder lower end of pawl is provided with screw thread, and the folder lower end of pawl is through described base; Described driving handle is provided with and the internal thread pressing from both sides pawl and matching, not below base.
The workpiece placement station of this base case is for supporting workpiece, and locating slot has positioning workpieces, and can slide in the course of processing by place work piece; Locating slot also has the effect of deposition scum simultaneously, prevents workpiece on the scum in workpiece placement station from can not put flat, makes processing deviation occur; Clamping mechanism centrosymmetry is evenly arranged in around workpiece placement station, and clamping force is uniformly distributed, and location is inaccurate to prevent workpiece from occurring because of unbalance stress, or workpiece is relaxed because of vibrations in the course of processing; And driving handle and folder pawl are threaded connection so that this fixture has good self-locking property, and makes workpiece in the course of processing not easily relax.
The clamping process of this base case is, rotates folder pawl, the pinching end of folder pawl is deviateed above workpiece placement station, can be kept flat in workpiece placement station by workpiece, and makes workpiece be in locating slot; Then the pinching end going back to folder pawl is above workpiece placement station, and tightly suppresses the pinching end of folder pawl, places it and rotates, then screws handle, moves under making folder pawl, and workpiece is realized from upper end clamping and positioning.
Preferred version one, as the further optimization to base case, described clamping mechanism also comprises anti-rotation sleeve pipe, anti-rotation sleeve pipe is welded on described base, upper end is provided with the anti-rotation breach of 90 ��, also has one and prevent shipping and reselling on another market in the middle part of described folder pawl, and anti-shipping and reselling on another market coordinates with anti-rotation breach; When this optimization makes to move under screwing handle and making folder pawl, its folder pawl also has rotation, but due to the anti-effect shipped and resell on another market with anti-rotation breach, folder pawl only can rotate 90 ��, namely when the pinching end of folder pawl is positioned at after above workpiece, just can not continue to rotate again, and can only descend to move, thus reach the clamping to workpiece; And after being completed by work pieces process, screw handle, make folder pawl moves, then can unclamp workpiece, in the process screwing handle and unclamping workpiece, when clamping force little to a certain extent time, handle also can drive folder pawl to rotate, and pinching end is deviateed workpiece placement station, workpiece can be taken out.
Preferred version two, as the further optimization to base case, upper end, slot, described location is cone; The location of this optimization workpiece is more accurate; Owing to the size of workpiece exists certain error, so adopting the round groove mated mutually with workpiece to be positioned by workpiece, the maximum value that circle groove is set to workpiece permissible error of just having to, thus make positioning error become big; And locating slot upper end is set to cone, then can adapt to each error by locating slot, as long as namely the lower of workpiece fits tightly along conical tank, just can realize the positioned centrally of workpiece.
Preferred version three, as the further optimization to base case, the bottom of described locating slot has certain gradient, and locating slot side has a discharge port; Use owing to this clamping is mainly used in boring, so the space that the drill bit that the locating slot above workpiece placement station can provide certain enters, prevent drill bit from getting into workpiece placement station, and locating slot also has the effect of deposition scum, prevent workpiece on the scum in workpiece placement station from can not put flat, make processing that deviation occur; Certain gradient is set bottom locating slot, and is also provided with a breach, can easy cleaning scum.
Accompanying drawing explanation
Fig. 1 is the schematic front view of boss workpiece clamping device;
Fig. 2 is the A-A sectional drawing of Fig. 1.
Embodiment
Below by embodiment, the utility model is described in further detail:
Reference numeral in Figure of description comprises: base 1, clamping mechanism 2, workpiece placement station 3, workpiece 4, folder pawl 21, anti-rotation sleeve pipe 22, driving handle 23, locating slot 31, discharge port 32, pinching end 211, anti-ship and resell on another market 212, anti-rotation breach 221.
Embodiment is substantially as shown in accompanying drawing 1, Fig. 2: boss workpiece 4 clamping device comprises base 1, workpiece placement station 3, clamping section, wherein workpiece placement station 3 is welded on base 1, a locating slot 31 is set above workpiece placement station 3, the upper end of locating slot 31 is cone, the bottom of locating slot 31 has certain gradient, and there is a discharge port 32 locating slot 31 tool side; Clamping section comprises three clamping mechanisms 2 altogether, and three clamping mechanisms 2 are circumferentially evenly arranged in around workpiece placement station 3; Clamping mechanism 2 comprises folder pawl 21, anti-rotation sleeve pipe 22 and driving handle 23; Folder pawl 21 is L-shaped, and folder pawl 21 upper end is pinching end 211, and pinching end 211 is positioned at above work mounting table; Also having one in the middle part of folder pawl 21 to prevent shipping and reselling on another market 212, folder pawl 21 bottom is provided with screw thread; Anti-rotation sleeve pipe 22 is welded on base 1, and its upper end is provided with the anti-rotation breach 221 of 90 ��, and folder pawl 21 is inserted in anti-rotation sleeve pipe 22 and through base 1, and anti-shipping and reselling on another market 212 coordinate with anti-rotation breach 221; Driving handle 23 is provided with and the internal thread pressing from both sides pawl 21 and matching, not below base 1.
Concrete working process is, rotates folder pawl 21, the pinching end 211 of folder pawl 21 is deviateed above workpiece placement station 3, can be kept flat in workpiece placement station 3 by workpiece 4, and makes workpiece 4 be in the conical section of locating slot 31 upper end; Then screw handle, folder pawl is moved for 21 times, workpiece 4 is clamped.
When screwing handle and make folder pawl move for 21 times, its folder pawl 21 also has rotation, but due to anti-212 effects with anti-rotation breach 221 of shipping and reselling on another market, folder pawl 21 only can rotate 90 ��, namely when the pinching end 211 of folder pawl 21 is positioned at after above workpiece 4, just can not continue again to rotate, and can only descend to move, thus reach the clamping to workpiece 4; Use owing to this clamping is mainly used in boring, so the space that the drill bit that the locating slot 31 above workpiece placement station 3 can provide certain enters, prevent drill bit from getting into workpiece placement station 3, and locating slot 31 also has the effect of deposition scum, prevent workpiece 4 on the scum in workpiece placement station 3 from can not put flat, make processing that deviation occur; Certain gradient is set bottom locating slot 31, and is also provided with a breach, can easy cleaning scum; After workpiece 4 is machined, screw handle, make folder pawl 21 moves, then can unclamp workpiece 4, in the process screwing handle and unclamping workpiece 4, when clamping force little to a certain extent time, handle also can drive folder pawl 21 to rotate, and pinching end 211 is deviateed workpiece placement station 3, workpiece 4 can be taken out, but due to anti-rotation breach 221 with anti-ship and resell on another market 212 effect, folder pawl 21 only can rotate 90 ��.
Claims (4)
1. a boss workpiece clamping device, comprising: base, workpiece placement station, clamping section; It is characterized in that, described workpiece placement station is welded on described base, and arranges a locating slot in heavy hole shape above workpiece placement station; Described clamping section comprises three clamping mechanisms altogether, and three clamping mechanisms are circumferentially evenly arranged in around workpiece placement station; Described clamping mechanism comprises folder pawl and driving handle; Folder pawl is L-shaped, and folder pawl upper end is pinching end, and pinching end is positioned at above work mounting table; The folder lower end of pawl is provided with screw thread, and the folder lower end of pawl is through described base; Described driving handle is provided with and the internal thread pressing from both sides pawl and matching, not below base.
2. boss workpiece clamping device according to claim 1, it is characterised in that, described clamping mechanism also comprises anti-rotation sleeve pipe, anti-rotation sleeve pipe is welded on described base, upper end is provided with the anti-rotation breach of 90 ��, also has one and prevent shipping and reselling on another market in the middle part of described folder pawl, and anti-shipping and reselling on another market coordinates with anti-rotation breach.
3. boss workpiece clamping device according to claim 1, it is characterised in that, upper end, slot, described location is cone.
4. boss workpiece clamping device according to claim 1, it is characterised in that, the bottom of described locating slot has certain gradient, and locating slot side has a discharge port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520951959.3U CN205271472U (en) | 2015-11-25 | 2015-11-25 | Boss work piece clamping jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520951959.3U CN205271472U (en) | 2015-11-25 | 2015-11-25 | Boss work piece clamping jig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205271472U true CN205271472U (en) | 2016-06-01 |
Family
ID=56056093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520951959.3U Expired - Fee Related CN205271472U (en) | 2015-11-25 | 2015-11-25 | Boss work piece clamping jig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205271472U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110924866A (en) * | 2019-12-22 | 2020-03-27 | 黑龙江北方双佳钻采机具有限责任公司 | Anti-rotation and displacement compensation mechanism of mechanical external clamping top drive casing running device |
-
2015
- 2015-11-25 CN CN201520951959.3U patent/CN205271472U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110924866A (en) * | 2019-12-22 | 2020-03-27 | 黑龙江北方双佳钻采机具有限责任公司 | Anti-rotation and displacement compensation mechanism of mechanical external clamping top drive casing running device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160601 Termination date: 20161125 |