CN207057685U - A kind of quick-clamping boring grab - Google Patents
A kind of quick-clamping boring grab Download PDFInfo
- Publication number
- CN207057685U CN207057685U CN201720938287.1U CN201720938287U CN207057685U CN 207057685 U CN207057685 U CN 207057685U CN 201720938287 U CN201720938287 U CN 201720938287U CN 207057685 U CN207057685 U CN 207057685U
- Authority
- CN
- China
- Prior art keywords
- pull rod
- template
- boring grab
- elastic claw
- eccentric wheel
- 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
Links
Abstract
The utility model provides a kind of quick-clamping boring grab, and boring positioning and fixation are realized using the macropore on workpiece.The boring grab includes template, eccentric wheel, bearing pin, compressing pull rod, pretension block, handle and nut；Positioning hole and the multiple elastic claws being evenly arranged are machined with template, outer inclined-plane is machined with elastic claw；Compressing pull rod top is connected by bearing pin with eccentric wheel, and lower end is threaded, with nut fixed form and pretension block；In use, rotary handle, compressing pull rod drives pretension block to rise so that it is swollen outside elastic claw, play quick fixation.Positioning hole in template can realize that fast positioning drills.The boring grab is simple in construction, easy to operate, reaches quickly and easily using effect, improves borehole accuracy, for batch production, substantially increases labor productivity.
Description
Technical field
The utility model belongs to field of machining, there is provided a kind of folder of the Quick uniform auger shell pit around macropore
Tool.
Background technology
In mach production process, the situation that multiple apertures are uniformly bored in workpiece macropore surrounding is frequently encountered, or
Bore unthreaded hole, or auger shell hole.Processed for single-piece production, the general method using line positioning and then drilling, or and Assembly part
The method of clamping drilling.And not only frittered away energy for batch production, line work, and it is extremely inefficient；Even if using dress
The clamping that replaces the spare parts is with boring, and the work of clamping can also waste the more time, and production efficiency is not still high, and deposits damage assembling
The risk of part.
The content of the invention
The utility model solve technical problem be：A kind of quick-clamping boring grab is provided, utilizes the macropore on workpiece
Realize positioning and fixed, Fast Installation positioning, raising drilling efficiency.
The utility model adopts the technical scheme that：
The utility model boring grab includes template, eccentric wheel, bearing pin, compressing pull rod, pretension block, handle and nut；Institute
The elastic claw that positioning hole is machined with template and is evenly arranged along template center is stated, outer inclined-plane is machined with the elastic claw；
The compressing pull rod top is connected by bearing pin with eccentric wheel, and handle is welded with eccentric wheel；In the compressing pull rod lower end
It is threaded, compressing pull rod is each passed through the centre bore of template and pretension block, is connected with nut；On the pretension block with elasticity
The contact surface that pawl outer inclined-plane is in contact is processed into the inclined-plane to match.
Further, to ensure that the elasticity of elastic claw is recovered, the outside diameter of the elastic claw is straight less than workpiece upper installing hole
Footpath 0.15-0.20mm.
Further, to prevent from damaging boring grab, replaceable drill bushing is installed on the positioning hole.
The utility model obtain technological progress be：The boring grab is simple in construction, easy to operate, reaches quickly and easily
Using effect, borehole accuracy is improved, for batch production, substantially increase labor productivity.
Brief description of the drawings
Fig. 1 is the utility model structure diagram；
Fig. 2 is template main structure diagram；
Fig. 3 is template cross section structure diagram；
Fig. 4 is elastic claw partial enlarged drawing；
Wherein：1- templates, 2- drill bushings, 3- elastic claws, 4- eccentric wheels, 5- bearing pins, 6- compressing pull rods, 7- pretensions block, 8- hands
Handle, 9- nuts, 10- positioning holes, 11- outer inclined-planes.
Embodiment
The utility model boring grab structure is shown in accompanying drawing 1, and the fixture includes template 1, eccentric wheel 4, bearing pin 5, compressing pull rod
6th, pretension block 7, handle 8 and nut 9.The structure of template 1 is shown in accompanying drawing 2, and the location dimension of its positioning hole 10 is by the positioning that need to drill
Size determines, is machined with the multiple elastic claws 3 being evenly arranged along template center in template 1, elastic claw 3 contacts with workpiece macropore
Arc surface outside diameter is less than diameter macropores 0.15-0.20mm, outer inclined-plane 11 is machined with elastic claw 3, as shown in Figure 3.
Compressing pull rod 6 passes through the centre bore of template 1, and its top is connected by bearing pin 5 with eccentric wheel 4, and eccentric wheel 4 can be around pin
Axle 5 is rotated, and handle 8 is welded with eccentric wheel 4.The bottom of compressing pull rod 6 passes through the centre bore of pretension block 7, in the lower end of compressing pull rod 6
Be threaded, tighten the 11 uniform gentle touchdown of outer inclined-plane that nut 9 causes pretension block 7 and elastic claw 3, pretension block 7 with
The contact surface that outer inclined-plane 11 is in contact is processed into the inclined-plane to match with outer inclined-plane 11.
In use, the fixture is put into the macropore of workpiece, macropore is the mounting hole of the fixture.Adjust positioning hole 10
Position, rotary handle 8, the band rotation of movable eccentric wheel 4 rises bearing pin 5, and the rising of bearing pin 5 drives compressing pull rod 6 to rise, simultaneously
Pretension block 7 is driven to rise, with the outer inclined-plane 11 of elastic claw 3 relative slide occurs for the inclined-plane of pretension block 7 so that it is swollen outside elastic claw 3,
Tight fit is produced with the inner surface of mounting hole, plays a part of fixed form 1.
To prevent drilling operation from destroying positioning hole 10, during drilling, drill bushing 2 is assembled on positioning hole 10, plays and extends template 1
The effect of service life.When drill bushing position error increases, drill bushing can be changed in time.
Drilling is completed, and reversely rotates handle 8, the descent tape of bearing pin 5 is moved compressing pull rod 6 and declined, so as to drive under pretension block 7
Drop, the elasticity of elastic claw 3 are recovered to shrink, the fixture are taken out from mounting hole.
The utility model boring grab is simple in construction, only needs the rotation of handle to achieve that positioning and dismounting, easy to operate,
Quickly and easily using effect is reached, positioning hole improves borehole accuracy, for batch production, substantially increases work production
Efficiency.
Claims (3)
- A kind of 1. quick-clamping boring grab, it is characterised in that：Including template（1）, eccentric wheel（4）, bearing pin（5）, compressing pull rod （6）, pretension block（7）, handle（8）And nut（9）；The template（1）On be machined with positioning hole（10）With it is uniform along template center The elastic claw of arrangement（3）, the elastic claw（3）On be machined with outer inclined-plane（11）；In the compressing pull rod（6）Top pass through pin Axle（5）With eccentric wheel（4）It is connected, in eccentric wheel（4）On be welded with handle（8）；In the compressing pull rod（6）Bottom be machined with Screw thread, compressing pull rod（6）It is each passed through template（1）With pretension block（7）Centre bore, with nut（9）Connection；The pretension block （7）Upper and elastic claw outer inclined-plane（11）The contact surface being in contact is processed into the inclined-plane to match.
- 2. boring grab according to claim 1, it is characterised in that：The elastic claw（3）Outside diameter is less than on workpiece Bore dia 0.15-0.20mm is installed.
- 3. boring grab according to claim 1, it is characterised in that：In the positioning hole（10）On drill bushing is installed（2）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720938287.1U CN207057685U (en) | 2017-07-31 | 2017-07-31 | A kind of quick-clamping boring grab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720938287.1U CN207057685U (en) | 2017-07-31 | 2017-07-31 | A kind of quick-clamping boring grab |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207057685U true CN207057685U (en) | 2018-03-02 |
Family
ID=61518229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720938287.1U Expired - Fee Related CN207057685U (en) | 2017-07-31 | 2017-07-31 | A kind of quick-clamping boring grab |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207057685U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111975689A (en) * | 2020-07-24 | 2020-11-24 | 中国航空工业集团公司济南特种结构研究所 | Device and method for improving perpendicularity of embedded screw |
-
2017
- 2017-07-31 CN CN201720938287.1U patent/CN207057685U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111975689A (en) * | 2020-07-24 | 2020-11-24 | 中国航空工业集团公司济南特种结构研究所 | Device and method for improving perpendicularity of embedded screw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180302 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |