CN203092339U - Chuck - Google Patents
Chuck Download PDFInfo
- Publication number
- CN203092339U CN203092339U CN 201320131507 CN201320131507U CN203092339U CN 203092339 U CN203092339 U CN 203092339U CN 201320131507 CN201320131507 CN 201320131507 CN 201320131507 U CN201320131507 U CN 201320131507U CN 203092339 U CN203092339 U CN 203092339U
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- CN
- China
- Prior art keywords
- base
- chuck
- center
- workpiece
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a chuck, belongs to the field of grinding and processing work clamps, and aims to overcome defects that the energy consumption is relatively larger when a conventional hydraulic pull rod pulls a three-clamping jaw type chuck, and a conventional chuck is not suitable for high-precision processing. The chuck comprises a disk-type base, wherein an axial hole is formed in the base, and a screw can penetrate through the axial hole and can be fixedly connected with an end surface of a main shaft; the axial direction of the base is perpendicular to a rear disk surface of the base; and a plurality of clamping arms which are integrated with the base and extend forwards and axially are arranged on the front disk surface of the base, the clamping arms are equally ranked along the circumference with the base serving as a center to form a clamping inner cavity in a surrounding manner, and the radius of the circumference is smaller than the distance between the center of the base to the axial hole. According to the chuck, a clamping force of the clamping arms is exerted to a workpiece through micro-distortion of the base, so that the energy consumption for clamping the workpiece can be reduced; and by means of the plurality of arranged clamping arms, the strength and the accuracy for the chuck to clamp the workpiece are improved, and the processing accuracy of the workpiece is improved.
Description
Technical field
The utility model belongs to grinding frock clamp field, and is especially relevant with a kind of chuck.
Background technology
Have the chuck that clamps workpiece when being used for grinding now and adopt three claw clamping structures of hydraulic pressure draw-bar pulling more, still need to provide pulling force to keep clamping force behind the clamping work pieces, still there is energy consumption, and three jaws clamp workpiece and can be not suitable for high accuracy processing owing to clamp the deviation effects machining accuracy in process.
The utility model content
The purpose of this utility model be exactly to solve existing hydraulic pressure draw-bar spur the energy consumption that three jack catchs type chucks exist higher relatively, be not suitable for high accurately machined defective, provide a kind of can energy efficient, the higher relatively chuck of precision.
For this reason, the utility model is by the following technical solutions: a kind of chuck, comprise the disc type base, base is provided with axial hole, screw can pass axial hole fixedlys connected with the end face of main shaft, it is characterized in that, described datum axle is to vertical with card behind the base, card is provided with a plurality of arms that clamp that are connected as a single entity and axially overhang forward with base before the described base, clamping arm arranges along the branches such as circumference that with the base center are the center of circle, surround and clamp inner chamber, described radius of a circle is less than the distance of base center to described axial hole.
When the utility model uses, base is installed in the front-end of spindle face, base is centered close on the spindle axis line, rear-end of spindle is installed oil cylinder, and in the time of need clamping workpiece, the hydraulic oil cylinder driving push rod protracts against the back card center of base, prominent little distortion before base produces, overhang to clamp arm outward-dipping, the internal diameter of front end is enlarged, workpiece can insert the inner chamber that clamps that clamps between the arm; After oil cylinder was laid down pressure, not redeformation of base clamped the arm homing, clamped just energy clamping work pieces of arm front end, just need not to consume oil cylinder power, energy efficient when clamping work pieces.
As to technique scheme replenish and perfect, the utility model also comprises following technical characterictic.
The card edge is provided with protruding backward spacing flange behind the described base, the inner surface of spacing flange is the face of cylinder, the axial line on this face of cylinder and chassis axle guarantee the quality of fit of chuck and main shaft in the same way also by the base center, improve the circular runout precision of chuck.
The described arm front end that clamps is provided with tapped through hole, the tapped through hole center line radially is provided with along the circumference that with the base center is the center of circle, be provided with screw in the tapped through hole, screw is resisted against workpiece when clamping workpiece, the degree of depth that is screwed into by adjustment screw, can regulate the size range that clamps workpiece, and can carry out aligning to workpiece, raising clamps precision.
The card centre is provided with projection behind the described base, and push rod protracts under hydraulic oil cylinder driving and is resisted against this projection, helps base and produces little distortion.
The described arm quantity that clamps is 6, can improve aligning precision and clamping force.
The card center is provided with axial screw before the described base, is provided with screw in the screw, workpiece is inserted the degree of depth that clamps inner chamber carry out spacing.
Use the utility model can reach following beneficial effect: the utility model provides by the little distortion of base and clamps the clamping force of arm to workpiece, can realize that reducing workpiece clamps energy consumption, clamp arm by being provided with 6, improved the intensity and the precision of chuck holding workpiece, improve the machining accuracy of workpiece.
Description of drawings
Fig. 1 is a front view of the present utility model.
Fig. 2 is a left view of the present utility model.
Fig. 3 is an A-A place cutaway view among Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in detail.
As Fig. 1～shown in Figure 3, the utility model comprises disc type base 1, base 1 is provided with axial hole 5, screw can pass axial hole 5 fixedlys connected with the end face of main shaft, datum axle is to vertical with card behind the base, card is provided with 6 of being connected as a single entity and axially overhanging forward with base 1 and clamps arm 2 before the base, clamping arm 2 arranges along the branches such as circumference that with the base center are the center of circle, surround and clamp inner chamber, radius of a circle clamps the arm front end and is provided with tapped through hole less than the distance of base center to described axial hole, and the tapped through hole center line radially is provided with along the circumference that with the base center is the center of circle, be provided with screw 3 in the tapped through hole, screw 3 is resisted against workpiece when clamping workpiece, by the degree of depth that is screwed into of adjustment screw 3, can regulate the size range that clamps workpiece, and can carry out aligning to workpiece, raising clamps precision; The card center is provided with axial screw before the base, is provided with screw 4 in the screw, workpiece is inserted the degree of depth that clamps inner chamber carry out spacing; The card centre is provided with projection 7 behind the base, push rod protracts under hydraulic oil cylinder driving and is resisted against this projection 7, help base and produce little distortion, the card edge is provided with protruding backward spacing flange 6 behind the base, the inner surface of spacing flange 6 is the face of cylinder, the axial line on this face of cylinder and chassis axle guarantee the quality of fit of chuck and main shaft in the same way also by the base center, improve the circular runout precision of chuck.
When the utility model uses, base 1 is installed in the front-end of spindle face, base is centered close on the spindle axis line, rear-end of spindle is installed oil cylinder, and in the time of need clamping workpiece, the hydraulic oil cylinder driving push rod protracts against the back card center of base 1, prominent little distortion before base 1 produces, overhang to clamp arm 2 outward-dipping, the internal diameter of front end is enlarged, workpiece can insert the inner chamber that clamps that clamps between the arm 2; After oil cylinder was laid down pressure, base 1 not redeformation clamped arm 2 homings, clamped just energy clamping work pieces of arm front end, just need not to consume oil cylinder power, energy efficient when clamping work pieces.
Claims (6)
1. chuck, comprise disc type base (1), base (1) is provided with axial hole (5), screw can pass axial hole (5) fixedlys connected with the end face of main shaft, it is characterized in that: described datum axle is to vertical with card behind the base, card is provided with a plurality of arms (2) that clamp that are connected as a single entity and axially overhang forward with base (1) before the described base, clamping arm (2) arranges along the branches such as circumference that with the base center are the center of circle, surround and clamp inner chamber, described radius of a circle is less than the distance of base center to described axial hole.
2. a kind of chuck according to claim 1, it is characterized in that: the card edge is provided with protruding backward spacing flange (6) behind the described base, the inner surface of spacing flange (6) is the face of cylinder, and the axial line on this face of cylinder and chassis axle are to also passing through the base center in the same way.
3. a kind of chuck according to claim 2 is characterized in that: the described arm front end that clamps is provided with tapped through hole, and the tapped through hole center line radially is provided with along the circumference that with the base center is the center of circle, is provided with screw (3) in the tapped through hole.
4. according to claim 1 or 3 described a kind of chucks, it is characterized in that: the card centre is provided with projection (7) behind the described base.
5. a kind of chuck according to claim 4 is characterized in that: described to clamp arm (2) quantity be 6.
6. a kind of according to claim 1 or 5 chuck is characterized in that: the card center is provided with axial screw before the described base, is provided with screw (4) in the screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320131507 CN203092339U (en) | 2013-03-21 | 2013-03-21 | Chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320131507 CN203092339U (en) | 2013-03-21 | 2013-03-21 | Chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203092339U true CN203092339U (en) | 2013-07-31 |
Family
ID=48843782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320131507 Expired - Fee Related CN203092339U (en) | 2013-03-21 | 2013-03-21 | Chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203092339U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111822459A (en) * | 2019-04-22 | 2020-10-27 | 中国石油天然气股份有限公司 | Propelling mechanism |
-
2013
- 2013-03-21 CN CN 201320131507 patent/CN203092339U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111822459A (en) * | 2019-04-22 | 2020-10-27 | 中国石油天然气股份有限公司 | Propelling mechanism |
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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 |
Granted publication date: 20130731 Termination date: 20150321 |
|
| EXPY | Termination of patent right or utility model |