CN201073700Y - Clamping device - Google Patents
Clamping device Download PDFInfo
- Publication number
- CN201073700Y CN201073700Y CNU2007201118364U CN200720111836U CN201073700Y CN 201073700 Y CN201073700 Y CN 201073700Y CN U2007201118364 U CNU2007201118364 U CN U2007201118364U CN 200720111836 U CN200720111836 U CN 200720111836U CN 201073700 Y CN201073700 Y CN 201073700Y
- Authority
- CN
- China
- Prior art keywords
- nut
- main body
- jaw
- convex shoulder
- clamping jaw
- 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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- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
Abstract
The utility model provides a gripping device, comprising a main body, which is characterized in that a connection hole is arranged on the rear end of the main body for fitting with motor shaft, a center hole is arranged on the front end of the main body, three clamping jaw holes inclined to the central line of the main body are evenly arranged on the front end of the main body along the circumferential direction, the inclination degree of each clamping jaw is identical, the clamping jaw hole is communicated with the center hole on front end of the main body, a clamping jaw is arranged in the clamping jaw hole for slipping front and back along the clamping jaw hole, the rear end of the clamping jaw has thread, a plurality of nuts are arranged round the gripping device, the nut shoulder for axial location is molded at the middle of the main body, the nut is fitted over the shaft shoulder, the fitting groove is arranged inside the nut for cooperating the nut shoulder and making the nut rotation on the shoulder and the nut and the clamping jaw are fixed by threaded connection. The utility model has the advantages of small diameter of the main body, saving material, shortening the working hours of main body production and assembly time and reducing the manufacture cost.
Description
Technical field
The utility model relates to a kind of clamping device, relates in particular to a kind of for example device of instrument such as clamping drilling bit on the electric hand drill of plant equipment that is installed in.
Background technology
In the prior art, the clamping device of instruments such as clamping drilling bit comprises main body, is installed in the nut on the main body, and nut is threaded with jaw, and main body is provided with nut groove, and nut is installed in the nut groove.In process, main body is formed and the moulding nut groove by the whole car system of round steel.The shortcoming of this structure is: general and nut diameter is more or less the same because nut groove is at the diameter of the end face of rear nut, and the nut diameter is relatively large, therefore nut groove is the position of diameter maximum in the main body, the diameter major part at other positions of main body is much smaller, therefore the clamping device of this structure chipping allowance when the processing main body is very big, not only waste man-hour, the while is waste material also.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of clamping device of saving material.For this reason, the utility model is by the following technical solutions: it comprises main body, the rear end of main body is provided with the connecting hole that cooperates with motor shaft, the front end of main body is provided with centre bore, front end edge circumferencial direction in described main body evenly is furnished with 3 jaw holes that tilt to main center's line, the angle of inclination in described jaw hole is identical, described jaw hole communicates with the body front end centre bore, being provided with in the described jaw hole can be along the jaw of slip before and after the jaw hole, the rear end of jaw is provided with screw thread, described clamping device is provided with the nut around main body, the middle part of described main body forms the convex shoulder of the described nut of axial location, nut sleeve is outside the shaft shoulder, and the nut inboard is provided with and cooperates with convex shoulder and make the mounting groove that nut can rotate on convex shoulder, and described nut is threaded with jaw.Because adopt the technical solution of the utility model, main diameter of the present utility model is little, the man-hour and the installation time of main body made in energy economical with materials, shortening, reduced manufacturing cost.
Description of drawings
Fig. 1 partly cuts open schematic diagram for the utility model embodiment's 1.
Fig. 2 is the explosive view of embodiment 1.
Fig. 3 is the cutaway view behind assembling nut and the jaw on the main body of embodiment 1.
Fig. 4 partly cuts open schematic diagram for the utility model embodiment's 2.
Fig. 5 is the explosive view of embodiment 2.
Fig. 6 partly cuts open schematic diagram for the utility model embodiment's 3.
The specific embodiment
With reference to accompanying drawing 1,2,3.The utility model comprises main body 1, the rear end of main body is provided with the connecting hole 11 that cooperates with motor shaft, the front end of main body is provided with centre bore 12, front end edge circumferencial direction in described main body evenly is furnished with 3 jaw holes 13 that tilt to main center's line 15, the angle of inclination in described jaw hole is identical, described jaw hole communicates with the body front end centre bore, being provided with in the described jaw hole can be along the jaw 4 of slip before and after the jaw hole, the rear end of jaw is provided with screw thread 41, described clamping device is provided with the nut 3 around main body, the middle part of described main body forms the convex shoulder 14 of the described nut of axial location, nut sleeve is outside the shaft shoulder, the nut inboard is provided with and cooperates with convex shoulder and make the mounting groove 31 that nut can rotate on convex shoulder, and described nut is threaded with jaw.
Described convex shoulder is the bulge loop that is molded over body surfaces.Described nut is a two halves formula nut, drawing reference numeral 2 is the overcoat that axially limited drive nut rotates, drawing reference numeral 21 is the nut sleeve of fixedlying connected with overcoat, and described nut sleeve is connected with the nut interference fit, and makes nut unite two into one and make the overcoat axial limiting.Drawing reference numeral 5 is the back cover of the set motion of main body relatively in the rear of overcoat.
With reference to accompanying drawing 4,5.Present embodiment is basic identical with embodiment 1, just forms ball grooves 17 in the lower surface of described convex shoulder, is provided with ball 6 between the lower surface of convex shoulder and the nut.In attached Figure 4 and 5, drawing reference numeral and Fig. 1,2,3 identical identical connotations of representative.
With reference to accompanying drawing 6.Present embodiment is basic identical with embodiment 1, just forms ball grooves 18 in the upper surface of described convex shoulder, is provided with ball 7 between the lower surface of convex shoulder and the nut.In accompanying drawing 6, drawing reference numeral and Fig. 1,2,3 identical identical connotations of representative.
Claims (7)
1. clamping device, it is characterized in that it comprises main body, the rear end of main body is provided with the connecting hole that cooperates with motor shaft, the front end of main body is provided with centre bore, front end edge circumferencial direction in described main body evenly is furnished with 3 jaw holes that tilt to main center's line, the angle of inclination in described jaw hole is identical, described jaw hole communicates with the body front end centre bore, being provided with in the described jaw hole can be along the jaw of slip before and after the jaw hole, the rear end of jaw is provided with screw thread, described clamping device is provided with the nut around main body, the middle part of described main body forms the convex shoulder of the described nut of axial location, nut sleeve is outside the shaft shoulder, and the nut inboard is provided with and cooperates with convex shoulder and make the mounting groove that nut can rotate on convex shoulder, and described nut is threaded with jaw.
2. a kind of clamping device as claimed in claim 1 is characterized in that described convex shoulder is the bulge loop that is molded over body surfaces.
3. a kind of clamping device as claimed in claim 1 is characterized in that the lower surface of described convex shoulder forms ball grooves, is provided with ball between the lower surface of convex shoulder and the nut.
4. a kind of clamping device as claimed in claim 1 is characterized in that the upper surface of described convex shoulder forms ball grooves, is provided with ball between the upper surface of convex shoulder and the nut.
5. as claim 1,2,3 or 4 described a kind of clamping devices, it is characterized in that described nut is a two halves formula nut.
6. as claim 1,2,3 or 4 described a kind of clamping devices, it is characterized in that it is provided with the overcoat of axially limited drive nut rotation.
7. a kind of clamping device as claimed in claim 6 is characterized in that it is provided with the back cover of main body motion relatively at the rear of overcoat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201118364U CN201073700Y (en) | 2007-07-16 | 2007-07-16 | Clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201118364U CN201073700Y (en) | 2007-07-16 | 2007-07-16 | Clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201073700Y true CN201073700Y (en) | 2008-06-18 |
Family
ID=39518963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201118364U Expired - Fee Related CN201073700Y (en) | 2007-07-16 | 2007-07-16 | Clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201073700Y (en) |
-
2007
- 2007-07-16 CN CNU2007201118364U patent/CN201073700Y/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: 20080618 Termination date: 20120716 |