CN210451853U - Boring clamp - Google Patents
Boring clamp Download PDFInfo
- Publication number
- CN210451853U CN210451853U CN201920974229.3U CN201920974229U CN210451853U CN 210451853 U CN210451853 U CN 210451853U CN 201920974229 U CN201920974229 U CN 201920974229U CN 210451853 U CN210451853 U CN 210451853U
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- China
- Prior art keywords
- expansion sleeve
- elastic expansion
- positioning
- clamp
- pull rod
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Abstract
The utility model discloses a boring clamp, which comprises a base, a clamp body, a positioning disc, a pull rod and an elastic expansion sleeve, wherein the base and the clamp body are provided with a central hole which is connected with each other; the pull rod is connected with the elastic expansion sleeve through more than two bolts penetrating through the fixture body, a compression spring is sleeved outside the bolt between the fixture body and the adjacent end surface of the elastic expansion sleeve, the elastic expansion sleeve is slidably arranged on a mandrel of the fixture body, a conical section is arranged at the front end of the mandrel, and the elastic expansion sleeve is provided with a conical hole matched with the conical section; the positioning disc is positioned on the radial outer side of the elastic expansion sleeve and is inserted with a positioning pin; the utility model discloses not only convenient operation, machining efficiency are high to can realize the work piece in ascending location of week, applicable in the processing of the eccentric orfice in week.
Description
Technical Field
The utility model relates to a bore hole anchor clamps especially are used for processing bore hole anchor clamps of ascending eccentric orfice in week.
Background
The conventional boring fixture is mostly used for boring a central hole of a workpiece, and a chuck is used for clamping the excircle of the workpiece, so that the conventional boring fixture is inconvenient to operate, low in machining efficiency, and incapable of realizing circumferential positioning of the workpiece, and therefore, the conventional boring fixture cannot be used for boring an eccentric hole in the circumferential direction.
Disclosure of Invention
The utility model aims at the above-mentioned not enough that prior art exists, provide a bore hole anchor clamps, it is convenient operation not only, machining efficiency is high to can realize the work piece in ascending location of week, applicable in the processing of the circumferencial upper eccentric orfice.
In order to achieve the purpose, the boring clamp comprises a base, a clamp body, a positioning disc, a pull rod and an elastic expansion sleeve, and is characterized in that the base and the clamp body are provided with connected central holes, the pull rod is arranged in the central hole of the base in a sliding manner, and a jacking screw is connected in the central hole of the clamp body through a thread; the pull rod is connected with the elastic expansion sleeve through more than two bolts penetrating through the fixture body, a compression spring is sleeved outside the bolt between the fixture body and the adjacent end surface of the elastic expansion sleeve, the elastic expansion sleeve is slidably arranged on a mandrel of the fixture body, a conical section is arranged at the front end of the mandrel, and the elastic expansion sleeve is provided with a conical hole matched with the conical section; the positioning disc is positioned on the radial outer side of the elastic expansion sleeve and is inserted with a positioning pin.
When the elastic expansion sleeve is used, the inner hole of a workpiece is sleeved on the elastic expansion sleeve, the rear end face of the workpiece is contacted with the positioning disc, the positioning pin penetrates through an eccentric hole to be processed on the workpiece, the jacking screw is rotated to enable the rear push-pull rod to drive the elastic expansion sleeve to move backwards, and the conical section at the front end of the mandrel enables the elastic expansion sleeve to expand radially and fix the workpiece; the clamp only needs to rotate the jacking screw, is convenient to operate and high in machining efficiency, and the positioning pin can realize the positioning of the workpiece in the circumferential direction and is suitable for machining eccentric holes in the circumferential direction;
as a further improvement of the utility model, the positioning disc is connected with the fixture body through a fixing plate, the positioning disc is connected with the fixing plate through screws, and the fixing plate is connected with the fixture body through screws; the fixing plate can adjust the axial position of the positioning plate;
as a further improvement of the utility model, a plurality of positioning teeth are fixedly connected with the excircle at the front end of the elastic expansion sleeve; the positioning tooth is suitable for workpieces with key grooves in inner holes, and the positioning accuracy can be improved by matching the positioning tooth with the key grooves;
to sum up, the utility model discloses not only convenient operation, machining efficiency are high to can realize the work piece in ascending location of week, applicable in the processing of the eccentric orfice in week.
Drawings
Fig. 1 is a front view of an embodiment of the present invention.
FIG. 2 is a right side view of the puck of FIG. 1.
Fig. 3 is a front view of the elastic expansion sleeve of fig. 1.
Fig. 4 is a right side view of fig. 3.
Fig. 5 is a front view of a workpiece to be machined.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 4, the boring jig comprises a base 1, a jig body 2, a fixing plate 3, a positioning plate 4, a pull rod 5 and an elastic expansion sleeve 6 which are sequentially connected through bolts, wherein the base 1 and the jig body 2 are provided with connected central holes, the pull rod 5 is slidably arranged in the central hole of the base 1, and a jacking screw 8 is connected in the central hole of the jig body 2 through threads; the pull rod 5 is connected with the elastic expansion sleeve 6 through six bolts 7 penetrating through the clamp body 2, compression springs 9 are sleeved outside the bolts 7 between the clamp body 2 and the adjacent end surfaces of the elastic expansion sleeve 6, the elastic expansion sleeve 9 is slidably arranged on a mandrel of the clamp body 2, a conical section 10 is arranged at the front end of the mandrel, and the elastic expansion sleeve 6 is provided with a conical hole matched with the conical section 10; the positioning disc 4 is positioned at the radial outer side of the elastic expansion sleeve 6, and a positioning pin 11 is inserted into a positioning hole 15 of the positioning disc; a plurality of positioning teeth 12 are fixedly connected with the excircle at the front end of the elastic expansion sleeve 6;
as shown in fig. 5, the workpiece to be machined 13 is provided with three eccentric holes 14 and an inner hole with a key groove; when the tool is used, an inner hole of a workpiece 14 is sleeved on the elastic expansion sleeve 6, the positioning teeth 12 are matched with the key groove, the rear end face of the workpiece 13 is contacted with the positioning disc 4, the positioning pin 11 penetrates through an eccentric hole 14 to be processed on the workpiece 13, the jacking screw 8 is rotated to enable the rear push-pull rod 5 to drive the elastic expansion sleeve 6 to move backwards, the conical section 10 at the front end of the mandrel enables the elastic expansion sleeve 6 to expand radially and fix the workpiece 13, and the positioning pin 11 is taken down during boring; the clamp only needs to rotate the jacking screw 8, is convenient to operate and high in machining efficiency, and the positioning pin 11 can realize the circumferential positioning of the workpiece 13 and is suitable for machining of circumferential eccentric holes;
the axial position of the positioning disc 4 can be adjusted through the fixing plate 3, and the positioning disc is suitable for workpieces of the same type and different thicknesses; the positioning teeth 12 cooperate with the key slots to improve the positioning accuracy.
Claims (3)
1. A boring clamp comprises a base, a clamp body, a positioning disc, a pull rod and an elastic expansion sleeve, wherein the base is connected with the clamp body; the pull rod is connected with the elastic expansion sleeve through more than two bolts penetrating through the fixture body, a compression spring is sleeved outside the bolt between the fixture body and the adjacent end surface of the elastic expansion sleeve, the elastic expansion sleeve is slidably arranged on a mandrel of the fixture body, a conical section is arranged at the front end of the mandrel, and the elastic expansion sleeve is provided with a conical hole matched with the conical section; the positioning disc is positioned on the radial outer side of the elastic expansion sleeve and is inserted with a positioning pin.
2. A boring jig according to claim 1, wherein the locating plate is coupled to the jig body by a fixing plate, the locating plate is coupled to the fixing plate by screws, and the fixing plate is coupled to the jig body by screws.
3. A boring jig according to claim 1 or 2, wherein a plurality of positioning teeth are fixedly coupled to an outer circumference of a front end of the elastic expansion sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920974229.3U CN210451853U (en) | 2019-06-26 | 2019-06-26 | Boring clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920974229.3U CN210451853U (en) | 2019-06-26 | 2019-06-26 | Boring clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210451853U true CN210451853U (en) | 2020-05-05 |
Family
ID=70442206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920974229.3U Active CN210451853U (en) | 2019-06-26 | 2019-06-26 | Boring clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210451853U (en) |
-
2019
- 2019-06-26 CN CN201920974229.3U patent/CN210451853U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |