CN210817518U - Back-pull type three-jaw chuck - Google Patents
Back-pull type three-jaw chuck Download PDFInfo
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- CN210817518U CN210817518U CN201921355739.9U CN201921355739U CN210817518U CN 210817518 U CN210817518 U CN 210817518U CN 201921355739 U CN201921355739 U CN 201921355739U CN 210817518 U CN210817518 U CN 210817518U
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- chuck
- collet
- pull
- jaw chuck
- annular portion
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Abstract
The utility model discloses a back-pull type three-jaw chuck, concretely relates to flange processing equipment technical field. The defects that the existing jaw chuck and collet chuck type chuck are poor in applicability to casting blanks of flanges and low in machining precision are overcome. This back-pull three-jaw chuck, chuck base and collet chuck including interconnect, chuck base is including two annular portions that cup joint, and collet chuck includes circular chassis, and one side on circular chassis evenly sets up three jack catch, and the opposite side is provided with the fixed column, and the fixed column stretches into the cavity of annular portion and realizes being connected of chuck base and collet chuck, and the internal diameter of two annular portions is different, and the annular portion that the internal diameter is big is direct to be connected with collet chuck, and collet chuck's circular chassis's diameter is less than the internal diameter of the annular portion that the internal diameter is big, and the cover has the shield on the collet chuck, the shield becomes circular, is equipped with the through-hole of three and jack catch position one-to-one on the terminal.
Description
Technical Field
The utility model relates to a flange processing equipment technical field, concretely relates to back-pull type three-jaw chuck.
Background
The flange is used widely in the machining field, and the flange is the important component part of pump in air condition compressor, and in batch production, the production efficiency and the quality of flange rough machining are especially important to the enterprise, and the lathe chuck that is used for rough machining the flange in batches that the trade is common probably can divide into two kinds: the three-jaw chuck is high in universality, but the three jaws are taken as the jaws, so that the three-jaw chuck is low in hardness and easy to wear, and lubricant is required to be filled every day for maintenance; the cylinder clamp type chuck overcomes the defects of a three-jaw chuck, but the outer diameter of a casting blank of the flange is irregular, the roundness is poor, the problems of small clamping area and poor clamping concentricity of a workpiece to be machined are caused at the moment, and the precision quality of rough machining of the flange is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the aforesaid not enough, provide one kind and can guarantee the machining precision of flange, can be applicable to the back of the foundry goods flange blank of treating processing of various specifications again and draw formula three-jaw chuck.
The utility model discloses specifically adopt following technical scheme:
the utility model provides a back pull-type three-jaw chuck, includes interconnect's chuck base and collet chuck, the chuck base is including two annular portions that cup joint, and collet chuck includes circular chassis, and one side on circular chassis evenly sets up three jack catch, and the opposite side is provided with the fixed column, and the fixed column stretches into realization chuck base and collet chuck's being connected in the cavity of annular portion.
Preferably, the two annular parts have different inner diameters, the annular part with the larger inner diameter is directly connected with the elastic chuck, and the diameter of the circular base plate of the elastic chuck is smaller than that of the annular part with the larger inner diameter.
Preferably, the elastic chuck is sleeved with a dustproof cover, the dustproof cover is circular, three through holes which correspond to the clamping jaws one by one are formed in the end face of the dustproof cover, and the clamping jaws extend out of the through holes.
Preferably, the periphery of the disk surface of the dustproof cover is uniformly provided with first screw holes, the side wall of the annular part with large inner diameter is provided with a second screw hole, and the screw penetrates through the first screw holes and the second screw holes to fix the chuck base, the elastic chuck and the dustproof cover.
Preferably, the inner sides of the three jaws are stepped.
Preferably, the stepped vertical surfaces of the three jaws are circular arc-shaped.
The utility model discloses following beneficial effect has:
when the rear-pull type three-jaw machine head clamps a workpiece to be machined, the protrusions in the circumferential direction of the workpiece to be machined can be avoided, and the concentricity of the workpiece and the chuck can be guaranteed, so that the size requirement after lathe machining is guaranteed, the rejection rate of the workpiece can be effectively reduced, and the potential safety hazard of workpiece flying caused by the irregular protrusion machining of the workpiece clamping is reduced.
Drawings
FIG. 1 is a schematic view of a back-pull type three-jaw chuck;
FIG. 2 is an exploded view of the back pull type three jaw chuck;
figure 3 is a cross-sectional view of a pull-back three-jaw chuck.
The automatic chuck comprises a chuck base 1, an elastic chuck 2, a dustproof cover 3, a screw 4, a workpiece 5, an annular part 6 with a large inner diameter, an annular part 7 with a small inner diameter, a clamping jaw 8, a circular base plate 9, a fixing column 10 and a stepped vertical surface 11.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:
as shown in fig. 1-3, a back-pull type three-jaw chuck comprises a chuck base 1 and an elastic chuck 2 which are connected with each other, wherein the chuck base 1 comprises two annular parts which are sleeved, the elastic chuck 2 comprises a circular base plate, one side of the circular base plate is uniformly provided with three clamping jaws, the other side of the circular base plate is provided with a fixing column, and the fixing column extends into a cavity of the annular part to realize the connection of the chuck base and the elastic chuck.
The two annular parts have different inner diameters, namely an annular part 6 with a large inner diameter and an annular part 7 with a small inner diameter, the annular part 6 with the large inner diameter is directly connected with the elastic chuck 2, and the diameter of a circular base plate 9 of the elastic chuck 2 is smaller than that of the annular part 6 with the large inner diameter.
The elastic chuck 2 is sleeved with a dustproof cover 3, the dustproof cover 3 is circular, three through holes which correspond to the clamping jaws one by one are formed in the end face of the elastic chuck, and the clamping jaws extend out of the through holes.
The quotation periphery evenly distributed of shield 3 has first screw, is equipped with the second screw on the lateral wall of the big annular portion of internal diameter, and screw 4 passes first screw and second screw and realizes chuck base 1, collet 2 and shield 3 fixed.
The inner sides of the three clamping jaws 8 are in a step shape, and vertical surfaces in the step shape are in an arc shape, so that the clamping is facilitated.
Chuck base 1 is connected with lathe body through the bolt, treats that machined part 5 puts into collet 2, and the pull rod of lathe clamping cylinder passes through threaded connection collet 2 and pulls collet 2 backward, realizes treating the clamp of machined part flange, and the lathe tool can process out the flange size of setting for the size after the lathe main shaft is rotatory.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also belong to the protection scope of the present invention.
Claims (6)
1. The utility model provides a back-pull formula three-jaw chuck, its characterized in that, includes interconnect's chuck base and collet chuck, the chuck base is including two annular portions that cup joint, and collet chuck includes circular chassis, and one side on circular chassis evenly sets up three jack catch, and the opposite side is provided with the fixed column, and the fixed column stretches into realization chuck base and collet chuck's in the cavity of annular portion and is connected.
2. A pull-back type three jaw chuck according to claim 1, wherein the two annular portions have different inner diameters, the annular portion having the larger inner diameter is directly connected to the collet, and the circular bottom plate of the collet has a smaller diameter than the inner diameter of the annular portion having the larger inner diameter.
3. The back-pull type three-jaw chuck according to claim 1, wherein the collet is provided with a dust cap, the dust cap is circular, and the end surface of the dust cap is provided with three through holes corresponding to the positions of the jaws one by one, and the jaws extend through the through holes.
4. The back-pull type three-jaw chuck according to claim 3, wherein the periphery of the disk surface of the dust cap is uniformly distributed with first screw holes, the side wall of the annular portion with a large inner diameter is provided with second screw holes, and the screw passes through the first screw holes and the second screw holes to fix the chuck base, the collet and the dust cap.
5. A back-pull three jaw chuck according to claim 1, wherein the inner sides of all three jaws are stepped.
6. A back-pull three jaw chuck according to claim 5, wherein the stepped vertical surfaces of all three jaws are rounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921355739.9U CN210817518U (en) | 2019-08-20 | 2019-08-20 | Back-pull type three-jaw chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921355739.9U CN210817518U (en) | 2019-08-20 | 2019-08-20 | Back-pull type three-jaw chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210817518U true CN210817518U (en) | 2020-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921355739.9U Active CN210817518U (en) | 2019-08-20 | 2019-08-20 | Back-pull type three-jaw chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210817518U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114227333A (en) * | 2021-12-31 | 2022-03-25 | 兴化日成金属制品有限公司 | Hydraulic chuck capable of clamping square products |
-
2019
- 2019-08-20 CN CN201921355739.9U patent/CN210817518U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114227333A (en) * | 2021-12-31 | 2022-03-25 | 兴化日成金属制品有限公司 | Hydraulic chuck capable of clamping square products |
| CN114227333B (en) * | 2021-12-31 | 2024-05-03 | 兴化日成金属制品有限公司 | Hydraulic chuck capable of clamping square products |
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