CN202239716U - Clamping jaw - Google Patents
Clamping jaw Download PDFInfo
- Publication number
- CN202239716U CN202239716U CN2011203382809U CN201120338280U CN202239716U CN 202239716 U CN202239716 U CN 202239716U CN 2011203382809 U CN2011203382809 U CN 2011203382809U CN 201120338280 U CN201120338280 U CN 201120338280U CN 202239716 U CN202239716 U CN 202239716U
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- Prior art keywords
- clamping
- claw
- workpiece
- utility
- model
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- Expired - Fee Related
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Abstract
The utility model discloses a clamping jaw which is step-shaped. One end of the clamping jaw is a clamping surface; the clamping surface is an arc surface fit with the round end surface of a clamped workpiece; two side surfaces connected with the clamping surface are vertical to the clamping surface; a counter bore and a through hole are arranged in the side surfaces; and the clamping jaw penetrates through the counter bore and the through hole to be connected with a lathe spindle chuck by a screw. The clamping surface of the clamping jaw and the round end surface of the clamped workpiece are in surface contact with each other instead of local contact; and simultaneously, the arc surface and the two side surfaces are vertical, and the principal axis of the clamped workpiece and the principal axis base line of the lathe chuck are overlapped, namely, the principal axis base line of the processed workpiece is vertical to the movement direction of processing, so that the vertical and round jumping of the processed workpiece is ensured.
Description
Technical field
The utility model relates to a kind of claw.
Background technology
In the machining, especially fine finishining shaft element or cylindrical work require very high to its axiality (circle is beated).
Be processed as example with turning.Usually, by turnery (for example: axle), process the location through the clamping of lathe spindle chuck.Specifically as shown in Figure 1.
There is a shortcoming in this direct clamping in the locate mode of lathe spindle: because therefore non-applying of lathe chuck and contacting of workpiece to be machined cannot say for sure that main shaft baseline and the machine direction demonstrate,proved by the clamping body are in plumbness.In twice clamping process, also can not guarantee that work piece is in same center.Therefore, if workpiece directly is clipped on the scroll chuck of lathe, will certainly influence the axiality (far beating) of workpiece to be machined.Therefore when axle class that is processed with the degree of precision requirement or columniform nose circle face, perpendicularity, axiality (circle is beated) often can not get guaranteeing.Even if on some higher multifunction machine of precision also is like this.
Through changing spindle chuck, increase on the spindle chuck claw with by the contact area of clamping body, make clamping firm.Work piece is steady when guaranteeing to cut, and helps high accuracy and forms.But this mode, cost are very high.Whether the new chuck of changing also is a pipe uncertain factor with addition of construction equipment main shaft size files.Whole reform technology is complicated, involves a wide range of knowledge.
The problem that prior art exists: because therefore non-applying of lathe chuck and contacting of workpiece to be machined cannot say for sure that main shaft baseline and the machine direction demonstrate,proved by the clamping body are in plumbness.In twice clamping process, also can not guarantee that work piece is in same center.Therefore, if workpiece directly is clipped on the scroll chuck of lathe, will certainly influence the axiality (circle is beated) of workpiece to be machined.Therefore when axle class that is processed with the degree of precision requirement or columniform nose circle face, perpendicularity, axiality (circle is beated) often can not get guaranteeing.
The utility model content
The technical problem that the utility model will solve provides a kind of claw, and the subsides and the face on claw and workpiece to be machined surface are fitted fully, guarantees to be in plumbness by the main shaft baseline and the machine direction of clamping body, promptly guarantees to add the perpendicularity and the axiality in man-hour.
For solving the problems of the technologies described above, the technical scheme of the utility model is following:
A kind of claw, said claw are step-like, and an end of said claw is a clamping face, and said clamping face is and the arc surface that is fitted by the nose circle face of clamping workpiece; The two sides that said clamping face is connected are perpendicular to said clamping face, and said side is provided with counterbore and through hole, and said claw passes said counterbore through a screw and is connected with the lathe spindle chuck with through hole.
Preferably, the external diameter of said counterbore is than the big 1-2mm of external diameter of screw nut.
Preferably, the diameter of said through hole is than the big 1-2mm of screw external screw thread.
Preferably, the clamping size files of said clamping face is than the big 0.05-0.10mm of processed axle external diameter.
Through technique scheme, the beneficial effect of the utility model is:
This hi-Fix claw makes by the main shaft of clamping workpiece
The utility model claw makes by the main shaft of clamping workpiece and overlaps with lathe chuck main shaft baseline, and promptly the main shaft baseline of processing work and working motion direction are perpendicular.The perpendicularity, the circle that guarantee workpiece to be machined are effectively beated; No matter the utility model installs still dismounting, all locatees through screw and lathe spindle chuck, and it is simple in structure, easy to use.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is existing lathe spindle chuck clamping location front schematic view.
Fig. 2 is special claw front view.
Fig. 3 looks cutaway view for a special claw left side.
Fig. 4 locatees positive sketch map for the claw clamping.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with concrete diagram, further set forth the utility model.
Shown in Fig. 2-4, claw 100 profiles and lathe spindle claw that the utility model the utility model provides are similar, and it is a ledge structure.
The utility model is designed to the plane with the two sides 102 of claw 100, and matches with the lathe spindle chuck; Clamping face 101 with claw 100 is designed to and the surperficial arc surface (as shown in Figure 2) of fitting of workpiece to be machined simultaneously.The perpendicularity, the circle that guarantee workpiece to be machined are effectively beated.
For realizing that claw 100 and lathe spindle chuck join; The utility model offers a through hole 200 (as shown in Figure 3) on the two sides of claw 100, this claw 100 connects, is fixed in claw 100 internal threads on the lathe spindle chuck through the screw thread that matches with through hole 200.
The diameter of the counterbore 201 on this through hole 200 than the diameter of the big 1～2mm. through hole 200 of external diameter of screw upper cap nut than the big 1～2mm of screw external screw thread.
Before the each use of the utility model, earlier claw 100 is screwed on the lathe spindle chuck.Lathe tool according to the turning of processed axle outside dimension, makes it the clamping size files than the big 0.05～0.10mm of processed axle external diameter to clamping face 101, the binding face that makes claw 100 with fitted but not lathe chuck partial face contact by the nose circle face of the workpiece of clamping.
At this moment two sides 102 faces of the clamping face 101 of claw 100 and lathe spindle chuck surface are overlapped with lathe chuck main shaft baseline by the main shaft of clamping workpiece 300 in vertical state, and promptly the main shaft baseline of processing work and working motion direction are perpendicular.The perpendicularity, the circle that guarantee workpiece to be machined are effectively beated.
No matter the special claw of this type installs still dismounting, all locatees through screw and lathe spindle chuck.Special claw process structure is simple, and processability is good.The Reinforced Nylon of selecting for use 66 belongs to light material, and " sticking cutter ", " collapsing cutter " phenomenon can not take place in the cutting.Have very high intensity and good cutting self lubricity, the comprehensive process performance is good.Not only easy to loading and unloading, laborsaving, the whole replacing time also shortens greatly, and efficient and reliability are high.Claw is installed is need not to change operating habit.
Nylon has following characteristics:
Proportion is low, in light weight, endurance, absorption are impacted; Because quiet, the coefficient of kinetic friction is little, cutting the time has good stable property and self lubricity, machine-shaping easily.Nylon belongs to free machining material.Even adopt roughing feed amount, high rotating speed in the processing, even not adding cooling-lubricant does not influence cutting effect and surface accuracy yet.Processing and can warpage when stressed yet, cracking or distortion.
In addition, nylon products wearability and oil resistivity are good, and working strength is high.
The nylon long service life, handling ease, non-corrosive, oil resistance are good.Need not special maintenance behind the finished product, also can place in the open, replacing, convenient disassembly reduce labour intensity.Reinforced Nylon 66 is industrial nylon products the most frequently used in the manufacturing industry.
The utility model is simple in structure, and is easy to use.
More than show and described basic principle of the utility model and the advantage of principal character and the utility model.The technical staff of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.
Claims (4)
1. a claw is characterized in that, said claw is step-like, and an end of said claw is a clamping face, and said clamping face is and the arc surface that is fitted by the nose circle face of clamping workpiece; The two sides that said clamping face is connected are perpendicular to said clamping face, and said side is provided with counterbore and through hole, and said claw passes said counterbore through a screw and is connected with the lathe spindle chuck with through hole.
2. claw according to claim 1 is characterized in that: the external diameter of said counterbore is than the big 1-2mm of external diameter of screw nut.
3. claw according to claim 1 is characterized in that: the diameter of said through hole is than the big 1-2mm of screw external screw thread.
4. claw according to claim 1 is characterized in that: the clamping size files of said clamping face is than the big 0.05-0.10mm of processed axle external diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203382809U CN202239716U (en) | 2011-09-09 | 2011-09-09 | Clamping jaw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203382809U CN202239716U (en) | 2011-09-09 | 2011-09-09 | Clamping jaw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202239716U true CN202239716U (en) | 2012-05-30 |
Family
ID=46101018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203382809U Expired - Fee Related CN202239716U (en) | 2011-09-09 | 2011-09-09 | Clamping jaw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202239716U (en) |
-
2011
- 2011-09-09 CN CN2011203382809U patent/CN202239716U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20120909 |