CN212121697U - Cylinder body main shaft hole boring rod for machining center - Google Patents
Cylinder body main shaft hole boring rod for machining center Download PDFInfo
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- CN212121697U CN212121697U CN202020711848.6U CN202020711848U CN212121697U CN 212121697 U CN212121697 U CN 212121697U CN 202020711848 U CN202020711848 U CN 202020711848U CN 212121697 U CN212121697 U CN 212121697U
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- boring bar
- main shaft
- machining center
- connecting disc
- hole
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Abstract
The utility model discloses a cylinder block main shaft hole boring bar that machining center used relates to cylinder block processing, and what mainly solve is the inconvenient technical problem of current boring bar adjustment, main shaft hole boring bar includes handle of a knife, boring bar body, the boring bar body passes through the relocation mechanism and connects the handle of a knife, boring bar body periphery is equipped with the blade that can dismantle, is used for the adjustment the cutter holder mechanism of the radial erection dimension of blade. The utility model discloses a set up relocation mechanism between boring bar body and handle of a knife, can compensate the axiality error between boring bar and the machining center main shaft, effectively solve the interference problem of boring bar and uide bushing among the conventional art, through setting up blade and the cutter holder mechanism that can dismantle, can conveniently adjust the radial mounting dimension of blade.
Description
Technical Field
The utility model relates to a cylinder block processing, more specifically say, it relates to a cylinder block main shaft hole boring bar that machining center used.
Background
In trial production of new cylinder block products, a machining process of boring a workpiece in a machining center is generally performed. The requirement on the mutual position accuracy of hole systems of workpieces (such as a main shaft hole of a diesel engine cylinder body, a camshaft and the like) is high, and a template and a guide sleeve are often required to be arranged on a clamp. However, the clamp is installed on the worktable of the machining center, and a certain coaxiality error often exists between the guide sleeve and the main shaft of the machine tool due to errors of manufacturing and assembling. As shown in FIG. 1, a conventional boring bar A is directly and rigidly connected with a machine tool spindle through a tool shank B, so that interference can be generated between the boring bar and a guide sleeve, and the machining precision of a workpiece can be influenced by the interference caused by the coaxiality error. In order to meet the requirement of machining precision, the workpiece needs to be trial cut and detected for multiple times, and the clamp needs to be adjusted for multiple times. This is possible for mass-produced special machine tools. However, in the machining process of boring a workpiece on a machining center in trial production of a new product, due to the fact that trial production is multiple in variety and small in quantity, clamps need to be replaced frequently, for example, the workpiece needs to be subjected to trial cutting and detection repeatedly for many times, the clamps need to be adjusted for many times, operation is inconvenient, production efficiency is low, and the method is not preferable.
In addition, the blade C and the cutter body of the traditional boring bar are generally made into a welding type or an assembly type cylindrical cutter bar which is assembled in a transverse hole of the boring bar, and a knocking cutter method is adopted for radial dimension adjustment, so that the radial dimension adjustment amount is difficult to control, the adjustment is inconvenient, and the efficiency is low.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is not enough to the above-mentioned of prior art, the utility model aims at providing a cylinder block main shaft hole boring bar that machining center that can conveniently adjust was used.
The technical scheme of the utility model is that: the utility model provides a cylinder block main shaft hole boring bar that machining center used, includes handle of a knife, boring bar body, the boring bar body passes through floating mechanism and connects the handle of a knife, boring bar body periphery is equipped with the blade that can dismantle, is used for adjusting the cutter holder mechanism of the radial erection dimension of blade.
As a further improvement, the floating mechanism comprises a main shaft connecting disc, one end of the main shaft connecting disc is connected with the cutter handle, the other end of the main shaft connecting disc is provided with a first positioning shaft, a boring rod connecting disc is sleeved on the periphery of the first positioning shaft, a first radial gap is arranged between the first positioning shaft and the boring rod connecting disc, one end of the boring rod body is provided with a connecting flange connected with the boring rod connecting disc, and a torque transfer assembly is arranged between the main shaft connecting disc and the boring rod connecting disc.
Furthermore, the torque transmission assembly comprises an adjusting pad sleeved on the periphery of the first positioning shaft, a first torque transmission piece arranged on the end face of the spindle connecting disc, and a second torque transmission piece arranged on the end face of the boring bar connecting disc, wherein a first groove corresponding to the first torque transmission piece and a second groove corresponding to the second torque transmission piece are respectively arranged on the adjusting pad.
Further, an axial gap is formed between the adjusting pad and the spindle connecting disc.
Furthermore, one end of the tool shank is provided with a taper shank used for being connected with a main shaft of the machining center, the other end of the tool shank is provided with a second positioning shaft which is coaxially arranged with the taper shank, and a second positioning hole matched with the second positioning shaft is formed in the main shaft connecting disc.
Furthermore, one end of the first positioning shaft is provided with a positioning sleeve which enables the boring rod connecting disc to be propped against the main shaft connecting disc.
Further, the tool holder mechanism comprises a tool holder body, one end of the tool holder body is provided with a mounting seat for mounting the blade, the mounting seat is provided with a radial adjusting screw for adjusting the radial mounting dimension of the blade, and the middle of the tool holder body is provided with a tool holder fixing screw for locking the tool holder fixing screw on the periphery of the boring bar body.
Furthermore, the boring bar body is provided with a mounting groove at the periphery for mounting the tool holder, one side surface of the tool holder is close to the inner wall of one side of the mounting groove, and the other end of the tool holder is provided with an axial tightening screw for tightening the inner wall of one end of the mounting groove.
Furthermore, a cooling liquid channel is arranged between the cutter handle and the floating mechanism as well as between the cutter handle and the boring bar body, a liquid outlet hole corresponding to the position of the blade is arranged on the periphery of the boring bar body, and the liquid outlet hole is communicated with the cooling liquid channel.
Furthermore, two ends of the boring bar body are respectively provided with an orientation key corresponding to a clamp guide sleeve of the machining center.
Advantageous effects
Compared with the prior art, the utility model, the advantage that has does: the utility model can compensate the coaxiality error between the boring bar and the main shaft of the processing center by arranging the floating mechanism between the boring bar body and the cutter handle, and effectively solve the interference problem between the boring bar and the guide sleeve in the traditional technology; through the arrangement of the detachable blade and the tool holder mechanism, the radial installation size of the blade can be conveniently adjusted.
Drawings
FIG. 1 is a schematic diagram of a conventional structure;
fig. 2 is a schematic view of the structure of the present invention;
FIG. 3 is a cross-sectional view taken along line H-H of FIG. 2;
FIG. 4 is a cross-sectional view taken along line I-I of FIG. 2;
FIG. 5 is an enlarged view taken at D in FIG. 3;
FIG. 6 is an enlarged view at E in FIG. 3;
FIG. 7 is an enlarged view at F of FIG. 4;
fig. 8 is a schematic perspective view of the present invention;
FIG. 9 is an enlarged view at G of FIG. 8;
fig. 10 is a schematic structural view of the middle clamping unit of the present invention.
Wherein: 1-tool holder, 2-boring bar body, 3-floating mechanism, 4-blade, 5-tool holder mechanism, 6-main shaft connecting disc, 7-first positioning shaft, 8-boring bar connecting disc, 9-connecting flange, 10-adjusting pad, 11-first torque transmission piece, 12-second torque transmission piece, 13-first groove, 14-second groove, 15-second positioning shaft, 16-positioning sleeve, 17-tool holder, 18-mounting seat, 19-radial adjusting screw, 20-tool holder fixing screw, 21-mounting groove, 22-axial tightening screw, 23-cooling liquid channel, 24-liquid outlet hole, 25-clamp guide sleeve, 26-directional key, 27-plug screw, 28-single round head guide flat key, 29-single round head guide flat key, 30-blade locking hole, 31-radial adjusting hole, 32-cutter holder locking hole, 33-axial adjusting hole and 34-blade locking screw.
Detailed Description
The invention will be further described with reference to specific embodiments shown in the drawings.
Referring to fig. 2-10, the cylinder body spindle hole boring bar for the machining center comprises a tool shank 1 and a boring bar body 2, wherein the boring bar body 2 is connected with the tool shank 1 through a floating mechanism 3, and a detachable blade 4 and a tool holder mechanism 5 for adjusting the radial installation size of the blade 4 are arranged on the periphery of the boring bar body 2.
The floating mechanism 3 comprises a main shaft connecting disc 6, one end of the main shaft connecting disc 6 is connected with the tool shank 1, and the other end of the main shaft connecting disc is provided with a first positioning shaft 7. The boring bar connecting disc 8 is sleeved on the periphery of the first positioning shaft 7, a first radial gap is formed between the first positioning shaft 7 and the boring bar connecting disc 8, and radial floating can be achieved to compensate for coaxiality errors between the boring bar and a main shaft of the machining center. One end of the boring bar body 2 is provided with a connecting flange 9 connected with a boring bar connecting disc 8, and the boring bar connecting disc 8 and the connecting flange 9 are locked through bolts. A torque transmission assembly is arranged between the main shaft connecting disc 6 and the boring bar connecting disc 8, the torque transmission assembly comprises an adjusting pad 10, a first torque transmission piece 11 and a second torque transmission piece 12, the adjusting pad 10 is sleeved on the periphery of the first positioning shaft 7, the first torque transmission piece 11 is arranged on the end face of the main shaft connecting disc 6, the second torque transmission piece 12 is arranged on the end face of the boring bar connecting disc 8, and a first groove 13 corresponding to the first torque transmission piece 11 and a second groove 14 corresponding to the second torque transmission piece 12 are respectively arranged on the adjusting pad 10. The first torque transmission piece 11 is locked on the end face of the main shaft connecting plate 6 through a bolt, a part of the first torque transmission piece 11 is inserted into the first groove 13, the second torque transmission piece 12 is locked on the end face of the boring bar connecting plate 8 through a bolt, and a part of the second torque transmission piece 12 is inserted into the second groove 14 and used for achieving torque transmission from the tool shank 1 to the boring bar body 2. In the present embodiment, the first torque transmission member 11 and the second torque transmission member 12 are both single round-head guiding flat keys, and the first groove 13 and the second groove 14 are both U-shaped grooves. The end face of the tool handle 1 is provided with a single round head guide flat key 28, the other end face of the main shaft connecting disc 6 is provided with a U-shaped groove corresponding to the single round head guide flat key 28, the other end face of the boring bar connecting disc 8 is provided with a single round head guide flat key 29, and the end face of the connecting flange 9 is provided with a U-shaped groove corresponding to the single round head guide flat key 29 and used for transmitting torque.
An axial clearance is arranged between the adjusting pad 10 and the main shaft connecting disc 6, axial floating can be achieved, and the coaxiality error between the boring rod and the main shaft of the machining center can be compensated more conveniently by combining the first radial clearance. One end of the first positioning shaft 7 is provided with a positioning sleeve 16 which pushes the boring bar connecting disc 8 to the main shaft connecting disc 6, one end of the positioning sleeve 16 is sleeved into the first positioning shaft 7 and tightly pushes the boring bar connecting disc 8, and the positioning sleeve 16 is locked on the end face of the first positioning shaft 7 through a bolt. An accommodating cavity for accommodating the positioning sleeve 16 is formed in the boring bar connecting disc 8, and a first radial gap is formed between the positioning sleeve 16 and the accommodating cavity.
One end of the tool shank 1 is provided with a taper shank used for being connected with a main shaft of a machining center, the other end of the tool shank is provided with a second positioning shaft 15 which is coaxially arranged with the taper shank, a second positioning hole matched with the second positioning shaft 15 is formed in the main shaft connecting disc 6, the coaxiality between the main shaft connecting disc 6 and the main shaft of the machining center can be guaranteed, and the main shaft connecting disc 6 is locked on the tool shank 1 through a bolt.
The tool holder mechanism 5 includes a tool holder body 17, one end of the tool holder body 17 is provided with a mounting seat 18 for mounting the insert 4, and the insert 4 is locked to the mounting seat 18 by an insert locking screw 34. The mounting seat 18 is provided with a radial adjusting screw 19 for adjusting the radial mounting dimension of the insert 4, and the middle part of the tool holder body 17 is provided with a tool holder fixing screw 20 for locking the tool holder fixing screw on the periphery of the boring bar body 2. The periphery of the boring bar body 2 is provided with a mounting groove 21 for mounting the cutter holder body 17, one side surface of the cutter holder body 17 is close to the inner wall of one side of the mounting groove 21, and the other end of the cutter holder body 17 is provided with an axial tightening screw 22 for tightening the inner wall of one end of the mounting groove 21. As shown in fig. 2, the bottom of the holder body 17 is closely attached to the bottom surface K of the mounting groove 21, the side surface of the holder body 17 is closely attached to the inner wall N, and the axial tightening screw 22 is tightly attached to the inner wall M. The radial adjusting screw 19 is vertical to and tightly props against the bottom surface K, and under the action of the threaded hole, the reverse jacking of the tool holder 17 can be realized by rotating the radial adjusting screw 19, so that the radial installation size of the blade 4 can be conveniently adjusted. The holder fixing screw 20 is formed at an angle of 20 ° with respect to the inner wall N, and the holder body 17 can be reliably fixed to the bottom surface K of the mounting groove 21 and the inner wall N. The bottom surface K and the inner wall N bear radial cutting force and tangential cutting force respectively, the inner wall M bears axial cutting force, the working strength of the tool holder mechanism 5 can be improved, and therefore cutting stability is improved. The tool holder body 17 is respectively provided with an insert locking hole 30 corresponding to an insert locking screw 34, a radial adjusting hole 31 corresponding to the radial adjusting screw 19, a tool holder locking hole 32 corresponding to the tool holder fixing screw 20, and an axial adjusting hole 33 corresponding to the axial tightening screw 22, wherein the tool holder locking hole 32 is a kidney-shaped hole.
A cooling liquid channel 23 is arranged between the tool shank 1 and the floating mechanism 3 and between the tool shank 1 and the boring bar body 2, a liquid outlet hole 24 corresponding to the position of the blade 4 is arranged on the periphery of the boring bar body 2, the liquid outlet hole 24 is communicated with the cooling liquid channel 23, and a screw plug 27 is arranged at one end of the cooling liquid channel 23 in the boring bar body 2. In particular, the liquid outlet holes 24 are located on the bottom surface K. During boring, high-pressure cooling liquid flows to the cooling liquid channel 23 in the boring bar body 2 from the cooling liquid channel 23 in the tool shank 1 through the cooling liquid channel 23 in the main shaft connecting disc 6 and the cooling liquid channel 23 in the positioning sleeve 16, and is sprayed out from the liquid outlet hole 24 to cool the blade 4 and a workpiece, so that the service life of the tool can be effectively prolonged, and the machining precision can be effectively improved.
Two ends of the boring bar body 2 are respectively provided with an orientation key 26 corresponding to the clamp guide sleeve 25 of the machining center, so that the guide function of the boring bar during feeding can be achieved.
The boring bar of the utility model mainly comprises disc parts, and has the advantages of simple structure, easy processing and low manufacturing cost.
The above is only a preferred embodiment of the present invention, and it should be noted that for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which will not affect the utility of the invention and the utility of the patent.
Claims (10)
1. The utility model provides a cylinder block main shaft hole boring bar that machining center used, includes handle of a knife (1), boring bar body (2), its characterized in that, boring bar body (2) are connected through floating mechanism (3) handle of a knife (1), boring bar body (2) periphery is equipped with blade (4) that can dismantle, is used for adjusting blade (4) radial installation size's cutter holder mechanism (5).
2. The cylinder body spindle hole boring bar for the machining center is characterized in that the floating mechanism (3) comprises a spindle connecting disc (6), one end of the spindle connecting disc (6) is connected with the tool shank (1), the other end of the spindle connecting disc is provided with a first positioning shaft (7), a boring bar connecting disc (8) is sleeved on the periphery of the first positioning shaft (7), a first radial gap is arranged between the first positioning shaft (7) and the boring bar connecting disc (8), one end of the boring bar body (2) is provided with a connecting flange (9) connected with the boring bar connecting disc (8), and a torque transmission assembly is arranged between the spindle connecting disc (6) and the boring bar connecting disc (8).
3. The cylinder block spindle hole boring bar for the machining center according to claim 2, wherein the torque transmission assembly comprises an adjusting pad (10) sleeved on the periphery of the first positioning shaft (7), a first torque transmission member (11) arranged on the end surface of the spindle connecting plate (6), and a second torque transmission member (12) arranged on the end surface of the boring bar connecting plate (8), and the adjusting pad (10) is provided with a first groove (13) corresponding to the first torque transmission member (11) and a second groove (14) corresponding to the second torque transmission member (12).
4. The boring bar for a main shaft hole of a cylinder block for a machining center according to claim 3, wherein an axial clearance is provided between the adjustment pad (10) and the main shaft connecting plate (6).
5. The boring bar for the main shaft hole of the cylinder body for the machining center is characterized in that one end of the cutter handle (1) is provided with a taper shank used for being connected with a main shaft of the machining center, the other end of the cutter handle is provided with a second positioning shaft (15) coaxially arranged with the taper shank, and a second positioning hole matched with the second positioning shaft (15) is formed in the main shaft connecting plate (6).
6. The boring bar for a main shaft hole of a cylinder block for a machining center according to claim 2, characterized in that one end of the first positioning shaft (7) is provided with a positioning sleeve (16) for pushing the boring bar connecting plate (8) against the main shaft connecting plate (6).
7. The cylinder block spindle hole boring bar for the machining center according to any one of claims 1 to 6, wherein the tool holder mechanism (5) comprises a tool holder body (17), one end of the tool holder body (17) is provided with a mounting seat (18) for mounting the insert (4), the mounting seat (18) is provided with a radial adjusting screw (19) for adjusting the radial mounting dimension of the insert (4), and the middle of the tool holder body (17) is provided with a tool holder fixing screw (20) for locking the tool holder fixing screw on the periphery of the boring bar body (2).
8. The boring bar for the main shaft hole of the cylinder block used in the machining center according to claim 7, characterized in that the boring bar body (2) is provided at the periphery thereof with an installation groove (21) for installing the toolholder body (17), one side surface of the toolholder body (17) abuts against the inner wall of one side of the installation groove (21), and the other end of the toolholder body (17) is provided with an axial tightening screw (22) for tightening the inner wall of one end of the installation groove (21).
9. The cylinder body spindle hole boring bar for the machining center according to any one of claims 1 to 6 and 8, wherein a coolant passage (23) is provided between the tool shank (1) and the floating mechanism (3) and between the tool shank and the boring bar body (2), a liquid outlet hole (24) corresponding to the position of the blade (4) is provided on the periphery of the boring bar body (2), and the liquid outlet hole (24) is communicated with the coolant passage (23).
10. The boring bar for a main shaft hole of a cylinder block for a machining center according to claim 1, wherein the two ends of the boring bar body (2) are respectively provided with an orientation key (26) corresponding to a jig guide sleeve (25) of the machining center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020711848.6U CN212121697U (en) | 2020-04-30 | 2020-04-30 | Cylinder body main shaft hole boring rod for machining center |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020711848.6U CN212121697U (en) | 2020-04-30 | 2020-04-30 | Cylinder body main shaft hole boring rod for machining center |
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| Publication Number | Publication Date |
|---|---|
| CN212121697U true CN212121697U (en) | 2020-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020711848.6U Active CN212121697U (en) | 2020-04-30 | 2020-04-30 | Cylinder body main shaft hole boring rod for machining center |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111390209A (en) * | 2020-04-30 | 2020-07-10 | 广西玉柴机器股份有限公司 | Cylinder body main shaft hole boring rod for machining center |
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2020
- 2020-04-30 CN CN202020711848.6U patent/CN212121697U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111390209A (en) * | 2020-04-30 | 2020-07-10 | 广西玉柴机器股份有限公司 | Cylinder body main shaft hole boring rod for machining center |
| CN111390209B (en) * | 2020-04-30 | 2024-06-25 | 广西玉柴机器股份有限公司 | Cylinder body main shaft hole boring bar for machining center |
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