CN213469646U - Detachable machine tool clamp for indexing drilling of long-shaft parts - Google Patents
Detachable machine tool clamp for indexing drilling of long-shaft parts Download PDFInfo
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- CN213469646U CN213469646U CN202022256719.5U CN202022256719U CN213469646U CN 213469646 U CN213469646 U CN 213469646U CN 202022256719 U CN202022256719 U CN 202022256719U CN 213469646 U CN213469646 U CN 213469646U
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- jaw chuck
- indexing
- vertical plate
- machine tool
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- 238000005553 drilling Methods 0.000 title claims abstract description 24
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000033001 locomotion Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims 1
- 238000003754 machining Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000010923 batch production Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
本实用新型属于机械设备技术领域，具体涉及一种长轴类零件分度钻孔的可拆卸式机床夹具，包括底板，底板包括横板以及与横板垂直固定的立板，立板上设有贯穿立板的安装孔，立板的安装孔内通过轴承Ⅰ安装有三爪卡盘，三爪卡盘的卡爪与立板之间三爪卡盘上安装有带有圆弧刻度的分度盘；三爪卡盘远离卡爪的一侧设有螺纹，通过垫片和螺母来限制三爪卡盘相对立板安装孔的圆周转动，工件由三爪卡盘的螺纹侧轴向贯穿三爪卡盘并由三爪卡盘的卡爪进行定位；立板的顶部设有顶板，顶板设有配合钻头在工件上进行钻孔的可拆卸式钻套。本夹具通过三爪卡盘保证工件的同轴度，再由分度盘来提供较为精确的加工角度。
The utility model belongs to the technical field of mechanical equipment, in particular to a detachable machine tool fixture for indexing drilling of long-axis parts, comprising a bottom plate, the bottom plate including a horizontal plate and a vertical plate fixed vertically with the horizontal plate, the vertical plate is provided with A three-jaw chuck is installed through the mounting hole of the vertical plate through the bearing I, and an indexing plate with an arc scale is installed on the three-jaw chuck between the jaws of the three-jaw chuck and the vertical plate. ;The side of the three-jaw chuck away from the jaws is provided with threads, and the circular rotation of the three-jaw chuck relative to the mounting hole of the vertical plate is restricted by the gasket and the nut, and the workpiece is axially penetrated by the threaded side of the three-jaw chuck. The plate is positioned by the jaws of the three-jaw chuck; the top of the vertical plate is provided with a top plate, and the top plate is provided with a detachable drill sleeve that cooperates with a drill bit to drill holes on the workpiece. The fixture ensures the coaxiality of the workpiece through the three-jaw chuck, and then provides a more accurate processing angle by the indexing plate.
Description
Technical Field
The utility model belongs to the technical field of mechanical equipment, concretely relates to detachable jig of major axis class part graduation drilling.
Background
With the change of modern technologies, the role of machine tools in machining precision equipment cannot be replaced by any tool, and the clamp is an accessory part of the machine tool and is a decisive factor for determining the machining precision. The existing main rotary drill jig indexing fixture mainly processes specific rotary parts and short shaft parts, and when long shaft parts need to be drilled and the like, the fixture for indexing and positioning the long shaft parts is lacked, so that in single-quantity or small-batch production, when long shafts need to be drilled and the like, errors are large and the long shafts are easy to deviate from the axis due to single-manpower estimation.
Therefore, the detachable machine tool clamp for the indexing drilling of the long-axis parts is stable in structure and accurate in indexing.
Disclosure of Invention
In order to overcome above-mentioned prior art's weak point, the utility model provides a detachable jig of major axis class part graduation drilling guarantees the axiality of work piece through three-jaw chuck, provides comparatively accurate processing angle by the graduated disk again.
The utility model discloses a realize through following technical scheme: a detachable machine tool clamp for indexing and drilling long shaft parts comprises a bottom plate, wherein the bottom plate comprises a transverse plate and a vertical plate vertically fixed with the transverse plate, a mounting hole penetrating through the vertical plate is formed in the vertical plate, a three-jaw chuck is mounted in the mounting hole of the vertical plate through a bearing I, and an indexing disc with arc scales is mounted on the three-jaw chuck between a clamping jaw of the three-jaw chuck and the vertical plate; threads are arranged on one side, far away from the clamping jaws, of the three-jaw chuck, the three-jaw chuck is limited to rotate circumferentially relative to the vertical plate mounting hole through a gasket and a nut, and a workpiece axially penetrates through the three-jaw chuck from the thread side of the three-jaw chuck and is positioned by the clamping jaws of the three-jaw chuck; the top of riser is equipped with the roof, and the roof is equipped with the detachable drill bushing that cooperates the drill bit to carry out drilling on the work piece.
Preferably, a sliding groove for installing a sliding block is formed in the transverse plate, a V-shaped block carriage is installed on the sliding block through an M8 bolt, a V-shaped block is fixed above the V-shaped block carriage through an M3 bolt, a spring is arranged between the V-shaped block carriage and the V-shaped block, and the V-shaped block is used for supporting the workpiece.
Preferably, the V-shaped block planker is provided with a threaded column matched with the M3 bolt.
Preferably, the sliding block is connected to the screw rod in a sliding mode, and one end of the screw rod is supported on the vertical plate through a bearing II.
Preferably, a handle is arranged at one end, far away from the bearing II, of the screw rod, and the linear motion of the sliding block is driven by rotating the handle.
Preferably, the top plate is fixed to the end face of the vertical plate through an M5 bolt.
Preferably, the detachable drill bush is pressed on the top plate through a drill bush screw.
Preferably, the three-jaw chuck is in transmission connection with the indexing disc through a key.
Preferably, the dividing plate is divided into two half circles, and each half circle is provided with 0-180-degree scales.
The working process of the clamp is as follows: marking the primary processing position of a workpiece (marking along the circumferential direction and determining that holes to be drilled are all on the marked line), determining the radial position of the workpiece by a drill bit penetrating through a detachable drill bushing, clamping by using a three-jaw chuck, properly adjusting the position of a slide block according to the length of the workpiece, changing the screwing length of an M3 bolt, adjusting the height of a V-shaped block, realizing the balance of the workpiece, aligning a 0 scale position or an integer scale position on an index plate, locking a gasket and a nut on the three-jaw chuck, fixing the axial position of the workpiece, and starting drilling; after the hole is machined, the nut and the gasket at the rear end of the three-jaw chuck are reversely rotated, rotated by a certain angle according to machining requirements, locked again and machined. And after the machining is finished, the workpiece is dismounted, and the power supply is disconnected.
The utility model has the advantages that: the coaxiality of the workpiece is ensured through the three-jaw chuck, and a relatively accurate machining angle is provided through the index plate. The clamp is simple to operate, reliable to process, low in cost and safe to use, the whole clamp adopts a detachable connection mode, main accessories can be bought on the market basically, and the clamp is convenient to maintain.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural diagram of the bottom plate of the present invention;
fig. 3 is a schematic structural view of the top plate of the present invention;
fig. 4 is a schematic structural view of the index plate of the present invention;
FIG. 5 is a schematic structural view of the carriage with V-shaped block of the present invention;
fig. 6 is a schematic structural view of the V-block of the present invention;
FIG. 7 is a schematic structural view of the screw of the present invention;
fig. 8 is a schematic structural diagram of the sliding block of the present invention;
FIG. 9 is a schematic view of the handle of the present invention;
in the figure, 1, a bottom plate; 1-1, a transverse plate; 1-2, standing a plate; 2. a three-jaw chuck; 3. a key; 4. an index plate; 5. a top plate; 6. drilling a sleeve screw; 7. a detachable drill bushing; 8. an M5 bolt; 9. an M3 bolt; 10. a V-shaped block; 11. a handle; 12. a nut; 13. a gasket; 14. a bearing I; 15. a lead screw; 16. a slider; 17. a bearing II; 18. a workpiece; 19. a spring; 20. an M8 bolt; 21. a V-shaped block carriage.
Detailed Description
The invention will be further explained below with reference to the drawings and examples.
As shown in fig. 1 to 9, a detachable machine tool fixture for indexing and drilling long-axis parts comprises a base plate 1, wherein the base plate 1 comprises a transverse plate 1-1 and a vertical plate 1-2 vertically fixed with the transverse plate 1-1, and a positioning hole is processed in the transverse plate 1-1 and used for connecting the base plate 1 with a machine tool main body. The bottom plate 1 can be of an integrated structure or can be formed by welding a transverse plate 1-1 and a vertical plate 1-2. The vertical plate 1-2 is provided with a mounting hole penetrating through the vertical plate 1-2, the three-jaw chuck 2 is mounted in the mounting hole of the vertical plate 1-2 through a bearing I14, and the bearing I14 is in interference fit with the three-jaw chuck 2. An index plate 4 with arc scales is arranged on the three-jaw chuck 2 between the jaws of the three-jaw chuck 2 and the vertical plate 1-2, and the three-jaw chuck 2 is in transmission connection with the index plate 4 through a key 3; the dividing plate 4 is divided into two half-circle areas, each half-circle area is provided with 0-180-degree scales, and the minimum unit of the scales is 1 degree. The side, far away from the clamping jaws, of the three-jaw chuck 2 is provided with threads, the three-jaw chuck 2 is limited to rotate circumferentially relative to the mounting hole of the vertical plate 1-2 through a gasket 13 and a nut 12, when the nut 12 is screwed down, the three-jaw chuck 2 is pressed on the vertical plate 1-2, and when the nut 12 is loosened, the three-jaw chuck 2 can rotate relative to the mounting hole of the vertical plate 1-2 along with the inner ring of the bearing I14. The workpiece 18 axially penetrates through the three-jaw chuck 2 from the thread side of the three-jaw chuck 2 and is positioned by the jaws of the three-jaw chuck 2, namely, the three-jaw chuck 2 is provided with an axial through hole, and the workpiece 18 extends into the three-jaw chuck 2 from the through hole and is fixed by the jaws of the three-jaw chuck 2; the top of the vertical plate 1-2 is provided with a top plate 5, and the top plate 5 is fixed with the end surface of the vertical plate 1-2 through four groups of M5 bolts 8. The top plate 5 is provided with a detachable drill bushing 7 which is matched with a drill bit to drill on the workpiece 18, a round through hole for placing the detachable drill bushing 7 is formed in the top plate 5, and the detachable drill bushing 7 is tightly pressed on the top plate 5 through a drill bushing screw 6 installed on the side face.
In order to better support the workpiece 18 to keep the whole workpiece 18 stable, and facilitate drilling. In this embodiment, preferably, the transverse plate 1-1 is provided with a sliding groove for mounting the sliding block 16, the sliding block 16 is slidably connected to the screw rod 15, and one end of the screw rod 15 is supported on the vertical plate 1-2 through a bearing ii 17. A V-shaped block carriage 21 is arranged on the sliding block 16 through an M8 bolt 20, a V-shaped block 10 is fixed above the V-shaped block carriage 21 through an M3 bolt 9, specifically, a threaded column matched with the M3 bolt 9 is arranged on the V-shaped block carriage 21, and the M3 bolt 9 is screwed into the threaded column of the V-shaped block carriage 21 to realize the fixation of the V-shaped block carriage 21 and the V-shaped block 10. A spring 19 is arranged between the V-shaped block carriage 21 and the V-shaped block 10, a threaded column of the V-shaped block carriage 21 also plays a role in positioning and guiding the spring 19, the height of the V-shaped block 10 is adjusted according to different diameters of a workpiece 18, the three-jaw chuck 2 and the V-shaped block 10 are relatively balanced, and the level of the workpiece 18 is ensured. Preferably, a handle 11 is arranged at one end of the screw rod 15 far away from the bearing II 17, the linear motion of the sliding block 16 is driven by rotating the handle 11, and the rotation trend of the sliding block 16 is limited by a sliding groove at the bottom of the bottom plate 1. The handle 11 increases the moment, so that the labor-saving effect is achieved.
The working process of the clamp is as follows: marking the primary processing position of a workpiece (marking along the circumferential direction and determining that holes to be drilled are all on the marked line), determining the radial position of the workpiece by a drill bit penetrating through a detachable drill bushing, clamping by using a three-jaw chuck, properly adjusting the position of a slide block according to the length of the workpiece, changing the screwing length of an M3 bolt, adjusting the height of a V-shaped block, realizing the balance of the workpiece, aligning a 0 scale position or an integer scale position on an index plate, locking a gasket and a nut on the three-jaw chuck, fixing the axial position of the workpiece, and starting drilling; this spot facing work finishes, and the certain angle of the rotatory certain angle of the nut and the gasket of reverse rotation three-jaw chuck rear end is according to the processing requirement, utilizes the number of degrees on the graduated disk to confirm rotatory angle, through closing the axial position of gasket and the nut fixed work piece once more on the three-jaw chuck soon, avoids taking place the rotation in the work piece course of working, leads to the processing dislocation, carries out drilling processing once more. And after the machining is finished, the workpiece is dismounted, and the power supply is disconnected.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022256719.5U CN213469646U (en) | 2020-10-12 | 2020-10-12 | Detachable machine tool clamp for indexing drilling of long-shaft parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022256719.5U CN213469646U (en) | 2020-10-12 | 2020-10-12 | Detachable machine tool clamp for indexing drilling of long-shaft parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213469646U true CN213469646U (en) | 2021-06-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022256719.5U Expired - Fee Related CN213469646U (en) | 2020-10-12 | 2020-10-12 | Detachable machine tool clamp for indexing drilling of long-shaft parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213469646U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115647492A (en) * | 2022-11-11 | 2023-01-31 | 贵州航天风华精密设备有限公司 | A workpiece processing auxiliary device |
-
2020
- 2020-10-12 CN CN202022256719.5U patent/CN213469646U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115647492A (en) * | 2022-11-11 | 2023-01-31 | 贵州航天风华精密设备有限公司 | A workpiece processing auxiliary device |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210618 |
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| CF01 | Termination of patent right due to non-payment of annual fee |