CN112276252A - Cutting device for machining inner hole key groove - Google Patents
Cutting device for machining inner hole key groove Download PDFInfo
- Publication number
- CN112276252A CN112276252A CN202011308871.1A CN202011308871A CN112276252A CN 112276252 A CN112276252 A CN 112276252A CN 202011308871 A CN202011308871 A CN 202011308871A CN 112276252 A CN112276252 A CN 112276252A
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- tool
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- groove
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- 238000005520 cutting process Methods 0.000 title claims abstract description 25
- 238000003754 machining Methods 0.000 title claims abstract description 18
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D79/00—Methods, machines, or devices not covered elsewhere, for working metal by removal of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Milling, Broaching, Filing, Reaming, And Others (AREA)
Abstract
The invention relates to a cutting device for machining an inner hole keyway, which comprises a guide support column and a tool bit assembly, wherein a guide rail is arranged on the outer end face of the front end of the guide support column, the tool bit assembly comprises a pair of tool bits and a pair of tool holders, sliding grooves are formed in the inner end faces of the two tool holders, a cushion block is fixedly arranged between the two tool holders, a second locking hole and a screw through hole are formed in the tool holders, a second locking screw is assembled in the second locking hole, a third through hole is formed in the cushion block, the second locking screw sequentially penetrates through the second locking hole, the third through hole and the other second locking hole to be fixed with a nut, an ejection screw is assembled in the screw through hole, and the axis of the screw through hole. According to the invention, two tool bits are symmetrically assembled in the two tool grooves, so that the processing of two symmetrical key grooves can be synchronously completed, and the processing length is not limited; when the cutter head is adjusted, the symmetry of the key groove on the circumference is ensured by utilizing the guidance of the dovetail groove structure.
Description
Technical Field
The invention relates to the field of metal cutting machining machinery, in particular to a cutting device for machining an inner hole key groove.
Background
Be equipped with drive sleeve pipe on the tapping machine is pressed to large-scale oil gas pipeline area, as shown in fig. 1, it includes sleeve pipe body 1, two round holes 2 are radially seted up to 1 one end of sleeve pipe body, two round hole 2 symmetric distributions are in 1 axis both sides of sleeve pipe body, two waist type holes 3 are radially seted up to the 1 other end of sleeve pipe body, two waist type holes 3 distribute with 2 homonymies of two round holes respectively, 1 inside two symmetrical keyways 4 of having seted up of sleeve pipe body, keyway 4 extends to the round hole 2 of homonymy from waist type hole 3, keyway 4 length is not less than 3000 mm. For the symmetrical key groove in the driving sleeve shown in fig. 1, the existing key groove processing equipment has the following disadvantages: 1. the symmetry and precision of the key slot can not be guaranteed; 2. in the cutting process of the cutter head, the cutter head cannot always move and cut along the axial direction of the inner hole.
Therefore, it is desirable to provide a cutting device for keyway machining of an inner bore that overcomes the above-mentioned disadvantages of the prior art.
Disclosure of Invention
The invention aims to provide a cutting device for machining an inner hole key groove, and the cutting device is used for solving the problem that the existing key groove machining equipment cannot guarantee the symmetry degree, the precision requirement and the like of the key groove.
In order to achieve the purpose, the invention provides the following technical scheme: a cutting device for machining an inner hole keyway comprises a guide support column and a tool bit assembly arranged at the front end of the guide support column, wherein a guide rail is arranged on the outer end face of the front end of the guide support column, the tool bit assembly comprises a pair of tool bits and a pair of tool holders respectively fixing the tool bits, sliding grooves are correspondingly formed in the inner end faces of the two tool holders, a cushion block is arranged between the two tool holders, the cushion block is fixed on the outer end face of the front end of the guide support column, the two tool holders slide on the guide rails on two sides of the cushion block through the sliding grooves, a second locking hole and a screw through hole are formed in the tool holders, a second locking screw is assembled in the second locking hole, a third through hole is formed in the cushion block, the second locking screw sequentially penetrates through the second locking hole, the third through hole and the other second locking hole to be fixed with a nut, and, the axis of the screw through hole is parallel to the axis of the second locking hole, the ejection screw is screwed, the front end of the ejection screw abuts against the cushion block, and the corresponding tool apron slides along the guide rail in the direction far away from the cushion block.
The sliding groove is arranged into a dovetail groove structure, and the guide rail is matched with the sliding groove.
The guide support column comprises a support column body and an end cover arranged at the front end of the support column body, and the guide rail is arranged on the outer end face of the end cover.
The tool apron is further provided with a tool groove, a notch of the tool groove faces the outer side of the tool apron, and the tool bit is assembled to the inside of the tool groove from the notch.
The tool apron is characterized in that first locking holes are further formed in the tool apron and are located at the outer ends of the tool grooves, the axes of the first locking holes are parallel to the axes of the tool grooves, first locking screws are assembled in the two first locking holes, and the front ends of the two tool aprons are fixed through the first locking screws.
The second locking hole is positioned at the inner end of the cutter groove, and the axis of the second locking hole is parallel to the axis of the cutter groove.
The inner side of the tool apron is provided with a groove which is inwards sunken from the inner surface, the groove is positioned at the inner end of the tool groove, the second locking hole is communicated with the groove, and under the condition that the tool apron is close to the cushion block, two sides of the cushion block are positioned in the grooves of the two tool aprons.
Compared with the prior art, the invention has the beneficial effects that:
1. two tool bits are symmetrically assembled in the two tool grooves, so that the processing of two symmetrical key grooves can be synchronously finished, and the processing length is not limited;
2. when the cutter head is adjusted, the dovetail groove structure is used for guiding, so that the symmetry of the key groove on the circumference is ensured;
3. the tool apron is adjusted to slide towards the direction close to the cushion block along the guide rail by screwing the first locking screw and the second locking screw, and the tool bits on two sides are contracted to the positions close to the cushion block, so that the tool bit assembly is ensured to be smoothly arranged in the driving sleeve;
4. the tool apron slides along the guide rail in the direction away from the cushion block by screwing up and delivering the first locking screw and the second locking screw and screwing up the ejection screws, and the distance between the two tool apron is controlled to adapt to the driving sleeves with different apertures to perform keyway processing.
Drawings
FIG. 1 is a schematic view of a drive sleeve construction;
FIG. 2 is a schematic structural view of a cutting device for machining an inner hole keyway according to the invention;
FIG. 3 is a partial schematic structural view of the cutter head assembly of FIG. 2;
FIG. 4 is a schematic view of the structure of the tool holder shown in FIG. 3;
fig. 5 is a schematic structural view of the connecting support and the driving connecting rod in fig. 2.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 2 to 5, the present invention is a cutting device for processing an inner hole keyway, including a guide support column 10, a cutter head assembly 20 mounted at a front end of the guide support column 10, and a driving connecting rod 30 mounted at a rear end of the guide support column 10, wherein the driving connecting rod 30 is fixedly connected to the guide support column 10 by a setscrew 40.
Referring to fig. 3 and 4, the guide rail 11 is disposed on the outer end surface of the front end of the guide support column 10, and the cutter head assembly 20 includes a pair of cutter heads 21 and a pair of tool holders 22 for respectively fixing the cutter heads 21. The inner end surfaces of the two tool holders 22 are respectively provided with a sliding groove 221, the two tool holders 22 are connected with the guide rail 11 in a sliding mode through the sliding grooves 221, a cushion block 23 is arranged between the two tool holders 22, the cushion block 23 is fixed on the outer end surface of the front end of the guide support column 10, and the two tool holders 22 slide on the guide rail 11 on the two sides of the cushion block 23. Wherein, the sliding groove 221 is arranged in a dovetail groove structure, and the guide rail 11 is matched with the sliding groove 221. When the tool bit 21 is adjusted, the symmetry of the key groove on the circumference is ensured by utilizing the guidance of a dovetail groove structure. The tool bit 21 has low use cost and is convenient to replace, and the processing of inner hole key grooves with different sizes and shapes is met.
Referring to fig. 2, the guide support column 10 includes a support column body 12, an end cover 13 disposed at a front end of the support column body 12, and a connection support 14 fixed at a rear end of the support column body 12, and the guide rail 11 is disposed on an outer end surface of the end cover 13. A stain resistant ring 121 and a wear resistant ring 122 are sequentially arranged between the support column body 12 and the end cover 13, the stain resistant ring 121 prevents cutting from extruding into an inner hole, and the wear resistant ring 122 isolates and reliably supports the guide support column 10 from the drive sleeve and improves the wear resistance of the guide support column 10.
Referring to fig. 5, the connection support 14 has a connection groove 141, the connection groove 141 has a groove body structure with an opening at the front end and at both sides, the front end of the driving connection rod 30 has a connection plate 31, the connection support 14 is symmetrically provided with a pair of first through holes 142, the pair of first through holes 142 are respectively communicated with the upper and lower ends of the connection groove 141, the connection plate 31 is provided with a second through hole 311, the connection plate 31 is installed in the connection groove 141, and the driving screw 40 sequentially passes through one first through hole 142, the second through hole 311 and the other first through hole 142 and extends outwards to be connected with the nut.
The driving screw 40 includes a nut and a screw rod, the screw rod includes a smooth section and a threaded section near the nut, the smooth section goes deep into the first through hole 142, the second through hole 311 and the other first through hole 142, and the threaded section extends outward to be connected with the nut.
The diameter of the second through hole 311 is larger than that of the smooth section, and the smooth section of the screw rod horizontally rotates in the second through hole 311, so that the connecting support 14 floats left and right around the connecting plate 31 along with the screw rod.
Referring to fig. 5, the connection holder 14 includes a base 143 and a pair of two holder plates 144 fixed to an outer end surface of the base 143 at intervals, the two holder plates 144 enclose a connection groove 141, and a pair of first through holes 142 are symmetrically disposed on the two holder plates 144. The inner end surface of the base 143 is fixed to the rear end of the support post body 12.
The distance between the two support plates 144 is larger than the thickness of the connecting plate 31, and the smooth section of the screw rod moves up and down in the second through hole 311, so that the connecting support 14 floats up and down around the connecting plate 31 along with the screw rod.
The connecting support 14 is connected with the driving connecting rod 30 through a plug screw 40, so that the cutter head assembly 20 can have certain freedom degree in the up-down left-right direction, the cutter head 21 is always kept in close contact with the inner hole of the driving sleeve during cutting, and the cutter head 21 is always kept in axial motion cutting along the inner hole.
Referring to fig. 4, the tool holder 22 is further provided with a tool slot 222, the notch of the tool slot 222 faces the outside of the tool holder 22, and the tool bit 21 is assembled into the tool slot 222 from the notch. By symmetrically assembling the two tool bits 21 in the two tool grooves 222, two symmetrical key groove processing can be synchronously completed, and the processing length is not limited.
Referring to fig. 4, the tool holder 22 is further provided with a first locking hole 223, the first locking hole 223 is located at the outer end of the tool slot 222, and the axis of the first locking hole 223 is parallel to the axis of the tool slot 222. First locking screws (not shown) are fitted into the two first locking holes 223, and the front ends of the two tool holders 22 are fixed by the first locking screws.
The tool holder 22 is further provided with a second locking hole 224, the second locking hole 224 is located at the inner end of the tool slot 222, and the axis of the second locking hole 224 is parallel to the axis of the tool slot 222. Second locking screws 25 are assembled in the two second locking holes 224, third through holes 232 are formed in the cushion block 23, and the second locking screws 25 sequentially penetrate through one second locking hole 224, the third through hole 232 and the other second locking hole 224 to be fixed with the nuts.
Referring to fig. 3 and 4, the tool holder 22 is further provided with a screw through hole 225, the screw through hole 225 is located between the second locking hole 224 and the tool slot 222, and the interior of the tool holder is provided with the ejecting screw 26. The axis of the screw penetration hole 225 is parallel to the axis of the second locking hole 224. The ejecting screw 26 is screwed, the front end of the ejecting screw 26 abuts against the cushion block 23, and the corresponding tool apron 22 slides along the guide rail 11 in the direction away from the cushion block 23.
Referring to fig. 4, the inside of the holder 22 has a groove 226 recessed inward from the inner surface, the groove 226 is located at the inner end of the pocket 222, and the second locking hole 224 is connected to the groove 226. With the tool holders 22 adjacent to the spacer 23, the two sides of the spacer 23 are located in the grooves 226 of the two tool holders 22.
The working process of the invention is as follows:
1) manually installing the tool bit 21 into the tool apron 22 and fastening;
2) loosening and withdrawing the ejection screws 26 on the tool apron 22, respectively tightening the first locking screws and the second locking screws 25 to enable the tool apron 22 to slide along the guide rail 11 until the tool bits 21 on two sides shrink to the positions on two sides of the tight cushion block 23;
3) the guide support column 10 is connected with a driving device through a driving connecting rod 30 through threads;
4) slowly pushing the guide support column 10 and the cutter head component 20 into the inner hole of the sleeve pipe body 1 and adjusting to enable the cutter head 21 to be aligned with the two waist-shaped through holes 3 on the sleeve pipe body 1;
5) loosening the first locking screw and the second locking screw 25 on the tool apron 22, tightening the ejection screw 26, and sliding the tool apron 22 along the guide rail 11 in the direction away from the cushion block 23 until the tool nose touches the inner hole wall to finish tool setting;
6) the first locking screw and the second locking screw 25 on the tool apron 22 are screwed; and finishing the feeding.
7) And starting the driving device to push the cutter head assembly 20 to advance for cutting, returning the cutter head assembly 20 to the waist-shaped hole 3 to adjust the feeding of the screw after the round hole 2 of the sleeve body 1 is cut, and repeating the above operations until the cutting of the key groove is finished.
8) And adjusting the tool apron 22, retracting the tool bit 21, and taking the tool bit assembly 20 out of the casing body 1 to finish machining.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a cutting device for hole keyway processing which characterized in that: the tool bit assembly comprises a guide support column and a tool bit assembly arranged at the front end of the guide support column, a guide rail is arranged on the outer end face of the front end of the guide support column, the tool bit assembly comprises a pair of tool bits and a pair of tool holders respectively fixing the tool bits, sliding grooves are correspondingly arranged on the inner end faces of the two tool holders, a cushion block is arranged between the two tool holders, the two tool holders slide on the guide rail on two sides of the cushion block through the sliding grooves, second locking holes and screw through holes are arranged on the tool holders, second locking screws are assembled in the second locking holes, third through holes are arranged on the cushion block, the second locking screws sequentially pass through one of the second locking holes, the third through holes and the other second locking holes and are fixed with nuts, ejection screws are arranged in the screw through holes, and the axis of the screw through holes is parallel to the axis of the second, and screwing the ejection screw, wherein the front end of the ejection screw abuts against the cushion block, and the corresponding tool apron slides along the guide rail in the direction far away from the cushion block.
2. The cutting device for internal bore keyway machining according to claim 1, characterized in that: the sliding groove is arranged into a dovetail groove structure, and the guide rail is matched with the sliding groove.
3. The cutting device for internal bore keyway machining according to claim 2, characterized in that: the guide support column comprises a support column body and an end cover arranged at the front end of the support column body, the guide rail is arranged on the outer end face of the end cover, and the cushion block is fixed on the outer end face of the end cover.
4. The cutting device for internal bore keyway machining according to claim 1, characterized in that: the tool apron is further provided with a tool groove, a notch of the tool groove faces the outer side of the tool apron, and the tool bit is assembled to the inside of the tool groove from the notch.
5. The cutting device for internal bore keyway machining according to claim 4, characterized in that: the tool apron is characterized in that first locking holes are further formed in the tool apron and are located at the outer ends of the tool grooves, the axes of the first locking holes are parallel to the axes of the tool grooves, first locking screws are assembled in the two first locking holes, and the front ends of the two tool aprons are fixed through the first locking screws.
6. The cutting device for internal bore keyway machining according to claim 4, characterized in that: the second locking hole is positioned at the inner end of the cutter groove, and the axis of the second locking hole is parallel to the axis of the cutter groove.
7. The cutting device for inner bore keyway machining according to claim 4 or 6, characterized in that: the inner side of the tool apron is provided with a groove which is inwards sunken from the inner surface, the groove is positioned at the inner end of the tool groove, the second locking hole is communicated with the groove, and under the condition that the tool apron is close to the cushion block, two sides of the cushion block are positioned in the grooves of the two tool aprons.
8. The cutting device for internal bore keyway machining according to claim 3, characterized in that: and a stain resistant ring and a wear resistant ring are sequentially arranged between the support column body and the end cover from front to back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011308871.1A CN112276252A (en) | 2020-11-20 | 2020-11-20 | Cutting device for machining inner hole key groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011308871.1A CN112276252A (en) | 2020-11-20 | 2020-11-20 | Cutting device for machining inner hole key groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112276252A true CN112276252A (en) | 2021-01-29 |
Family
ID=74398357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011308871.1A Pending CN112276252A (en) | 2020-11-20 | 2020-11-20 | Cutting device for machining inner hole key groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112276252A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1446662A (en) * | 1920-12-02 | 1923-02-27 | Samuel Georg | Drilling tool |
| DE2533495A1 (en) * | 1975-07-26 | 1977-01-27 | Komet Stahlhalter Werkzeug | Boring bar with two cutter bits - has bits set diametrically opposite one another and mounted on radially adjustable holders |
| DE3411237A1 (en) * | 1984-03-27 | 1985-10-10 | Koyemann Werkzeuge Gmbh, 4006 Erkrath | Double-edged tool insert |
| CN2573122Y (en) * | 2002-09-20 | 2003-09-17 | 昆山力捷塑胶五金有限公司 | Boring hold adjusting structure |
| CN201147851Y (en) * | 2007-12-25 | 2008-11-12 | 嘉兴永佳精密机械制造有限公司 | Improved boring head |
| CN101767212A (en) * | 2010-02-11 | 2010-07-07 | 嘉兴永佳精密机械制造有限公司 | Advanced rough boring head |
| JP2011189454A (en) * | 2010-03-15 | 2011-09-29 | Honda Motor Co Ltd | Boring tool |
| CN102717104A (en) * | 2011-03-31 | 2012-10-10 | 绍兴汉纳机电设备有限公司 | Novel adjustable double-blade boring cutter |
| CN213614567U (en) * | 2020-11-20 | 2021-07-06 | 上海圣斌自动化设备有限公司 | Cutting device for machining inner hole key groove |
-
2020
- 2020-11-20 CN CN202011308871.1A patent/CN112276252A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1446662A (en) * | 1920-12-02 | 1923-02-27 | Samuel Georg | Drilling tool |
| DE2533495A1 (en) * | 1975-07-26 | 1977-01-27 | Komet Stahlhalter Werkzeug | Boring bar with two cutter bits - has bits set diametrically opposite one another and mounted on radially adjustable holders |
| DE3411237A1 (en) * | 1984-03-27 | 1985-10-10 | Koyemann Werkzeuge Gmbh, 4006 Erkrath | Double-edged tool insert |
| CN2573122Y (en) * | 2002-09-20 | 2003-09-17 | 昆山力捷塑胶五金有限公司 | Boring hold adjusting structure |
| CN201147851Y (en) * | 2007-12-25 | 2008-11-12 | 嘉兴永佳精密机械制造有限公司 | Improved boring head |
| CN101767212A (en) * | 2010-02-11 | 2010-07-07 | 嘉兴永佳精密机械制造有限公司 | Advanced rough boring head |
| JP2011189454A (en) * | 2010-03-15 | 2011-09-29 | Honda Motor Co Ltd | Boring tool |
| CN102717104A (en) * | 2011-03-31 | 2012-10-10 | 绍兴汉纳机电设备有限公司 | Novel adjustable double-blade boring cutter |
| CN213614567U (en) * | 2020-11-20 | 2021-07-06 | 上海圣斌自动化设备有限公司 | Cutting device for machining inner hole key groove |
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