CN212793073U - Fine-adjustable hollow large deep hole rough boring cutter bar - Google Patents
Fine-adjustable hollow large deep hole rough boring cutter bar Download PDFInfo
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- CN212793073U CN212793073U CN202020860304.6U CN202020860304U CN212793073U CN 212793073 U CN212793073 U CN 212793073U CN 202020860304 U CN202020860304 U CN 202020860304U CN 212793073 U CN212793073 U CN 212793073U
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Abstract
The utility model discloses a fine-adjustable hollow large deep hole heavy boring cutter bar, which comprises a cutter bar and a cutter bar seat arranged at the outer end of the cutter bar, wherein the cutter bar seat is provided with a cutter clamping groove, a cutter bar is arranged in the cutter clamping groove, and the lower end of the cutter bar is provided with a first screw hole; a fine adjustment device is arranged at the lower part of the cutter row in the cutter clamping groove, and the fine adjustment device has upward fine adjustment acting force on the cutter row; the fine adjustment device comprises a fixed block and fine adjustment screws, the fixed block is arranged in the cutter clamping groove and is fixedly connected with the cutter row seat through at least two fastening screws, and a second screw hole is formed in the center of the fixed block; the fine adjustment screw is provided with a first external thread corresponding to the first screw hole and a second external thread corresponding to the second screw hole, and the thread pitch of the first external thread is smaller than that of the second external thread. The utility model discloses a big deep hole heavy boring cutter arbor of cavity that can finely tune the tool setting row to make the tool setting row tool setting more accurate, improve the machining precision.
Description
Technical Field
The utility model relates to a big deep hole heavy boring cutter arbor of cavity that can finely tune.
Background
The boring cutter bar is used for installing a boring cutter tool, the boring cutter tool needs to be subjected to tool setting before machining, a certain gap exists between the boring cutter tool and a workpiece after the conventional tool setting is finished, the machining precision of the workpiece is reduced due to the gap, and the error always exists due to the fact that the conventional tool setting structure cannot compensate.
Disclosure of Invention
The utility model aims to solve the technical problem that a big deep hole heavy boring cutter arbor of cavity that can finely tune is provided, it can compensate the clearance between cutter and the work piece to improve the machining precision.
In order to solve the technical problem, the utility model relates to a big deep hole heavy boring cutter arbor's of cavity that can finely tune technical solution does:
the utility model discloses a fine-adjustable hollow large deep hole heavy boring cutter bar, which comprises a cutter bar and a cutter bar seat arranged at the outer end of the cutter bar, wherein the cutter bar seat is provided with a cutter clamping groove, a cutter bar is arranged in the cutter clamping groove, and the lower end of the cutter bar is provided with a first screw hole; at least two fastening screws are arranged in the tool clamping groove and used for fixing the tool row; a fine adjustment device is arranged at the lower part of the cutter row in the cutter clamping groove, and the fine adjustment device has upward fine adjustment acting force on the cutter row; the fine adjustment device comprises a fixed block and fine adjustment screws, the fixed block is arranged in the cutter clamping groove and is fixedly connected with the cutter row seat through at least two fastening screws, and a second screw hole is formed in the center of the fixed block; the fine adjustment screw is respectively provided with a first external thread correspondingly matched with the first screw hole and a second external thread correspondingly matched with the second screw hole, and the pitch of the first external thread is smaller than that of the second external thread; the fine adjustment screw is rotated to drive the cutter row to move up and down; and an anti-loosening structure is arranged between the fine adjustment screw and the second screw hole.
The anti-loosening structure comprises a mounting hole arranged in an inner hexagonal groove of the fine adjustment screw, a push rod arranged in the mounting hole and a plurality of anti-loosening rods hinged on the push rod, wherein a spring is sleeved on the push rod and always has an axial downward acting force on the push rod, and a coil spring is arranged at a hinged position between the anti-loosening rods and the push rod and enables the anti-loosening rods to be always in an outward opening state relative to the push rod; a plurality of downward-inclined insertion holes which are in one-to-one correspondence with the plurality of anti-loosening rods are formed in the mounting hole towards the direction of the second screw hole, the hole diameter of each insertion hole is larger than the outer diameter of each anti-loosening rod, and when the push rod moves downwards along the axial direction due to the elasticity of the spring, the free end of each anti-loosening rod abuts against the second screw hole; the lower end of the push rod is positioned in the inner hexagonal groove.
The spring includes the spiral section, sets up last support section and the under bracing section at the upper end of spiral section and lower extreme, go up support section, under bracing section structure unanimous, all including being a plurality of bracing pieces of circumference equipartition, formed the guide way between two adjacent bracing pieces, locking pole is in the guide way.
The plurality of anti-loosening rods are spirally distributed on the push rod.
The utility model has the advantages that:
compared with the prior art, the utility model discloses a cavity big deep hole heavy boring cutter arbor that can finely tune, when the tool setting, after the conventional tool gang that moves near the work piece tool setting is accomplished, in fact, there is certain small clearance still between tool gang and the work piece, and this small clearance can become the precision error when processing the work piece, and at this moment, through the rotation regulation the utility model discloses a fine setting screw to promote the tool gang to carry out small removal towards the work piece, thereby accomplish the tool setting of higher precision, make the finished product precision after processing higher;
compared with the prior art, the utility model discloses a big deep hole heavy boring cutter arbor of cavity that can finely tune takes place in order to avoid the cutter gang vibrations that leads to in the course of working, the not hard up condition, has increased locking structure very much to make when the rotation regulation fine setting screw, can avoid influencing fine setting screw, after fine setting screw is rotatory to the position, make to make fine setting screw relative second screw be the card and die the stationary state, avoid the cutter gang to take place not hard up.
To sum up, the utility model discloses a big deep hole heavy boring cutter arbor of cavity that can finely tune the tool setting row to make the tool setting of tool setting row more accurate, improve the machining precision.
Drawings
FIG. 1 is a schematic structural view of a hollow large deep hole rough boring cutter bar of the utility model which can be finely adjusted;
FIG. 2 is a left partial sectional view of FIG. 1;
FIG. 3 is a partial cross-sectional view of the micro-adjustable hollow large deep hole rough boring cutter bar of the present invention with a locking structure;
fig. 4 is an enlarged view of a portion a of fig. 3.
Detailed Description
The invention will be described in further detail with reference to the following drawings and detailed description:
referring to fig. 1 to 4, the utility model provides a finely adjustable hollow large deep hole rough boring cutter bar, which comprises a cutter bar 1 and a cutter bar seat 2 arranged at the outer end of the cutter bar 1, wherein the cutter bar 1 is of a hollow structure, thereby reducing the production cost, reducing the weight of the cutter bar and facilitating the transportation, a cutter clamping groove 3 is arranged on the cutter bar seat 2, a cutter bar 4 is arranged in the cutter clamping groove 3, and a first screw hole 5 is arranged at the lower end of the cutter bar 4; at least two fastening screws 6 are arranged in the knife clamping groove 3, and the fastening screws 6 are used for fixing the knife row 4; a fine adjustment device 7 is arranged at the lower part of the knife row 4 in the knife clamping groove 3, and the fine adjustment device 7 has upward fine adjustment acting force on the knife row 4; the fine adjustment device 7 comprises a fixed block 8 and fine adjustment screws 9, the fixed block 8 is arranged in the tool clamping groove 3 and is fixedly connected with the tool apron seat 2 through at least two fastening screws 6, and a second screw hole 10 is formed in the center of the fixed block 8; a first external thread 11 correspondingly matched with the first screw hole 5 and a second external thread 12 correspondingly matched with the second screw hole 10 are respectively arranged on the fine adjustment screw 9, and the thread pitch of the first external thread 11 is smaller than that of the second external thread 12; the fine adjustment screw 9 is rotated to drive the cutter row 4 to move up and down; and an anti-loosening structure 13 is arranged between the fine adjustment screw 9 and the second screw hole 10.
The anti-loosening structure 13 comprises a mounting hole 15 arranged in an inner hexagonal groove 14 of the fine adjustment screw 9, a push rod 16 arranged in the mounting hole 15 and a plurality of anti-loosening rods 17 hinged on the push rod 16, wherein a spring 18 is sleeved on the push rod 16, the spring 18 always has an axial downward acting force on the push rod 16, a coil spring (not shown in the figure) is arranged at a hinged position between the anti-loosening rods 17 and the push rod 16, and the anti-loosening rods 17 are always in an outward opening state relative to the push rod 16 due to the coil spring (not shown in the figure); a plurality of downward-inclined insertion holes 20 which are in one-to-one correspondence with the plurality of anti-loosening rods 17 are formed in the mounting hole 15 towards the second screw hole 10, the aperture of each insertion hole 20 is larger than the outer diameter of each anti-loosening rod 17, and when the push rod 16 moves downwards along the axial direction due to the elastic force of the spring 18, the free end of each anti-loosening rod 17 abuts against the second screw hole 10; the lower end of the push rod 16 is positioned in the inner hexagonal groove 14.
The spring 18 comprises a spiral section 21, an upper supporting section 22 and a lower supporting section 23 which are arranged at the upper end and the lower end of the spiral section 21, the upper supporting section 22 and the lower supporting section 23 are consistent in structure and respectively comprise a plurality of supporting rods 24 which are uniformly distributed on the circumference, a guide groove 25 is formed between every two adjacent supporting rods 24, and the anti-loosening rod 17 is positioned in the guide groove 25.
The plurality of anti-loosening rods 17 are spirally distributed on the push rod 16.
The following explains the working principle of the hollow large deep hole heavy boring cutter bar which can be finely adjusted:
the utility model discloses a big deep hole heavy boring cutter arbor of cavity that can finely tune, when the tool setting, drive cutter arbor 1 through each planker and remove, thereby make the sword row 4 infinitely be close to the work piece, later, stop the removal to whole cutter arbor 1, adopt the hexagon socket head wrench to insert and establish in the hexagonal groove 14 in the fine setting screw 9, at this moment, the hexagon socket head wrench has ascending thrust to push rod 16, thereby promote push rod 16 to move up along the axial in mounting hole 15, because a plurality of check rod 17 articulate on push rod 16, and the aperture of jack 20 that matches with check rod 17 is greater than the external diameter of check rod 17, like this, when push rod 16 shifts up, drive check rod 17 and move up, like this, the free end of check rod 17 leaves second screw 10, thereby make fine setting screw 9 rotatable relative to second screw 10, after second external thread 12 relative to second screw 10 of fine setting screw 9 rotates, when the fine adjustment screw 9 moves upward in the axial direction relative to the second screw hole 10, at the same time, the first external thread 11 of the fine adjustment screw 9 is screwed in the first screw hole 5 of the tool row, and since the pitch of the first external thread 11 is smaller than that of the second external thread 12, the distance that the fine adjustment screw 9 pushes the tool row 4 to move upward is: the second external screw thread 12 of fine setting screw 9 subtracts the first external screw thread 11 of fine setting screw 9 at the distance of shifting up of second screw 10 and shifts up the distance in first screw 5 to make the range of shifting up of tool gang 4 become small, reach the purpose of fine setting, it is specific, the utility model discloses a rotatory round of fine setting screw 9 can make tool gang 4 shift up 50 silks.
After the fine adjustment of the tool row 4 is completed, the allen key is removed, the push rod 16 losing the thrust is moved downwards by the downward elastic force of the spring 18, and then the locking rod 17 is driven to move downwards in the insertion hole 20 in an inclined manner, finally, the free end of the locking rod 17 is abutted against the internal thread of the second screw hole 10, so that the locking rod is clamped in the internal thread, and the second external thread 12 of the fine adjustment screw 9 cannot rotate in the second screw hole 10.
The utility model discloses a spring 18 divide into the three-section, upper support section 22 and lower support section 23 wherein, make locking bar 17 can match in the guide way 25 of two adjacent bracing pieces 24, guide way 25 has not only played the purpose of dodging locking bar 17, make locking bar 17 can be relative push rod 16 articulated rotatory, moreover, guide way 25 has played the effect of direction to locking bar 17, reciprocate at push rod 16 and drive locking bar 17 and take place to reciprocate and rotatory in-process, can guarantee locking bar 17 upset, it is smooth and easy to remove, avoid the phenomenon of card shell to take place.
In addition, a plurality of anti-loosening rods 17 distributed spirally can be randomly clamped in the second screw holes 10, so that the anti-loosening performance of the fine adjustment screw 9 is further improved.
The finely adjustable hollow large deep hole rough boring cutter bar provided by the embodiment of the invention is described in detail above, a specific example is applied in the description to explain the principle and the implementation mode of the invention, and the description of the above embodiment is only used for helping to understand the technical scheme disclosed by the invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.
Claims (4)
1. The utility model provides a big deep hole heavy boring cutter arbor of cavity that can finely tune, includes the cutter arbor, sets up the tool row seat in the cutter arbor outer end, its characterized in that: the cutter row seat is provided with a cutter clamping groove, a cutter row is arranged in the cutter clamping groove, and the lower end of the cutter row is provided with a first screw hole; at least two fastening screws are arranged in the tool clamping groove and used for fixing the tool row; a fine adjustment device is arranged at the lower part of the cutter row in the cutter clamping groove, and the fine adjustment device has upward fine adjustment acting force on the cutter row; the fine adjustment device comprises a fixed block and fine adjustment screws, the fixed block is arranged in the cutter clamping groove and is fixedly connected with the cutter row seat through at least two fastening screws, and a second screw hole is formed in the center of the fixed block; the fine adjustment screw is respectively provided with a first external thread correspondingly matched with the first screw hole and a second external thread correspondingly matched with the second screw hole, and the pitch of the first external thread is smaller than that of the second external thread; the fine adjustment screw is rotated to drive the cutter row to move up and down; and an anti-loosening structure is arranged between the fine adjustment screw and the second screw hole.
2. The tool bar for rough boring large hollow deep holes capable of fine adjustment according to claim 1, wherein: the anti-loosening structure comprises a mounting hole arranged in an inner hexagonal groove of the fine adjustment screw, a push rod arranged in the mounting hole and a plurality of anti-loosening rods hinged on the push rod, wherein a spring is sleeved on the push rod and always has an axial downward acting force on the push rod, and a coil spring is arranged at a hinged position between the anti-loosening rods and the push rod and enables the anti-loosening rods to be always in an outward opening state relative to the push rod; a plurality of downward-inclined insertion holes which are in one-to-one correspondence with the plurality of anti-loosening rods are formed in the mounting hole towards the direction of the second screw hole, the hole diameter of each insertion hole is larger than the outer diameter of each anti-loosening rod, and when the push rod moves downwards along the axial direction due to the elasticity of the spring, the free end of each anti-loosening rod abuts against the second screw hole; the lower end of the push rod is positioned in the inner hexagonal groove.
3. The tool bar for rough boring large hollow deep hole with fine adjustment according to claim 2, wherein: the spring includes the spiral section, sets up last support section and the under bracing section at the upper end of spiral section and lower extreme, go up support section, under bracing section structure unanimous, all including being a plurality of bracing pieces of circumference equipartition, formed the guide way between two adjacent bracing pieces, locking pole is in the guide way.
4. The tool bar for rough boring large hollow deep hole with fine adjustment according to claim 2, wherein: the plurality of anti-loosening rods are spirally distributed on the push rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020860304.6U CN212793073U (en) | 2020-05-21 | 2020-05-21 | Fine-adjustable hollow large deep hole rough boring cutter bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020860304.6U CN212793073U (en) | 2020-05-21 | 2020-05-21 | Fine-adjustable hollow large deep hole rough boring cutter bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212793073U true CN212793073U (en) | 2021-03-26 |
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ID=75093378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020860304.6U Active CN212793073U (en) | 2020-05-21 | 2020-05-21 | Fine-adjustable hollow large deep hole rough boring cutter bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212793073U (en) |
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2020
- 2020-05-21 CN CN202020860304.6U patent/CN212793073U/en active Active
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