CN110788359B - Numerical control three-sided boring machine - Google Patents
Numerical control three-sided boring machine Download PDFInfo
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- CN110788359B CN110788359B CN201910986865.2A CN201910986865A CN110788359B CN 110788359 B CN110788359 B CN 110788359B CN 201910986865 A CN201910986865 A CN 201910986865A CN 110788359 B CN110788359 B CN 110788359B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B47/00—Constructional features of components specially designed for boring or drilling machines; Accessories therefor
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Abstract
The invention provides a numerical control three-face boring machine. The processing device comprises a bedstead placed on the ground, wherein a placing platform used for placing an object to be processed is arranged on the bedstead, three processing parts are arranged on the bedstead, and the processing parts are distributed around the placing platform; every portion of processing all includes processing frame, first drive division, and the processing frame slides and connects in the bedstead upper surface, and first drive division is installed on the bedstead, and first drive division is used for driving the processing frame and removes toward being close to or keeping away from the place the platform position, is equipped with second drive division, machined part on the processing frame, and second drive division is used for driving the machined part motion, and the machined part is located and is close to place platform one side, and the machined part is used for processing the article of treating processing of placing on place the platform. When the numerical control three-sided boring machine is used for machining, due to the fact that the three machining parts are arranged on the periphery of the placing platform, the three machining parts can at least produce simultaneous machining effects on three corresponding surfaces of the object, and the whole machining efficiency is greatly improved.
Description
Technical Field
The invention relates to the field of boring machines, in particular to a numerical control three-sided boring machine.
Background
The existing boring machine structure is as in application publication No. CN10325216A, the main structure of the automatic horizontal type milling machine comprises a machine body, a lower sliding seat is connected on the machine body in a transverse sliding mode, an upper sliding seat is connected above the lower sliding seat in a longitudinal sliding mode, a workbench is arranged above the upper sliding seat, in addition, a stand column is further arranged on the machine body, a spindle box is arranged on the stand column, a boring shaft is arranged on the spindle box, a corresponding boring cutter can be arranged on the boring shaft, the boring shaft faces one side of the workbench and can drive the boring shaft of the spindle box and the boring cutter to rotate, an object to be processed can be placed on the workbench, and the object to be processed on the workbench and the boring cutter on the boring shaft generate a processing effect through the matching movement of the upper.
Although the existing boring machine structure can complete machining actions such as boring, the structure of the existing boring machine structure only has one boring cutter structure, when an object to be machined has a plurality of planes and needs boring operation, the objects need to be machined one by one, and machining efficiency is low.
Disclosure of Invention
In view of the above, the present invention is directed to a numerical control three-sided boring machine, which can greatly improve the overall processing efficiency.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a numerical control three-sided boring machine comprises a bed frame placed on the ground, wherein a placing platform for placing an object to be machined is arranged on the bed frame, three machining parts are arranged on the bed frame, and the machining parts are distributed around the placing platform;
every processing portion all includes processing frame, first drive division, the processing frame slides and connects in the bedstead upper surface, first drive division is installed on the bedstead, first drive division is used for driving the processing frame and moves toward being close to or keeping away from the place table position, be equipped with second drive division, machined part on the processing frame, second drive division is used for driving the machined part motion, the machined part is located and is close to place table one side, the machined part is used for processing the article of treating processing of placing on place table.
According to the technical scheme, an object to be machined is placed on the placing platform, the first driving parts on the three machining parts can respectively drive the corresponding machining frames to move, the second driving parts and the machined parts on the machining frames can move along with the first driving parts, the second driving parts drive the machined parts to move, and the machined parts can generate machining effects on the object placed on the placing platform; in the processing process, as the three processing parts are arranged around the placing platform, the three processing parts can at least generate simultaneous processing effect on three corresponding surfaces of the object, and the overall processing efficiency is greatly improved.
Preferably, the two processing parts are symmetrically arranged relative to the placing platform, and the processing pieces on the two processing parts are oppositely arranged.
Through above-mentioned technical scheme, two processing portions that are the symmetry and set up can carry out direct processing to two relative planes that lie in the placing platform object, are favorable to having the article of two opposite faces to process.
Preferably, the second driving part includes a second driving motor;
the processing piece comprises a mounting bar and a processing cutter, the mounting bar is mounted at the output end of the second driving motor, the processing cutter is mounted on the mounting bar, and the position of the processing cutter is eccentric to the driving axis of the second driving motor.
Through above-mentioned technical scheme, the processing cutter is installed on the mounting bar and the eccentric drive axle center in second driving motor in processing cutter position, and second driving motor can directly drive the mounting bar and rotate, and the processing cutter then can rotate round second driving motor's drive axle center, and the processing cutter can be treated the hole portion of processing article and produce the bore hole effect.
Preferably, the mounting bar is provided with a first sliding groove, the length direction of the first sliding groove is perpendicular to the driving axis of the second driving motor, the machining tool comprises a machining tool holder and a boring tool, the machining tool holder is connected in the first sliding groove in a sliding manner, the boring tool is mounted on the machining tool holder, the mounting bar is provided with a positioning driving part, and the positioning driving part is used for driving the machining tool holder to slide and positioning the machining tool holder at a specified position.
According to the technical scheme, the diameters of hole parts to be bored of different batches of objects to be machined are different, at the moment, the machining tool rest can be moved according to the different diameters of the hole parts to be bored actually, the machining tool rest can slide along the first sliding groove, namely, the distance between the machining tool rest and the driving shaft center of the second driving motor is adjusted, and the positioning driving piece locks the position of the machining tool rest until the machining tool rest moves to an ideal position; the application range of the boring machine is greatly enlarged by the adjusting process.
Preferably, the positioning driving part comprises a positioning driving motor installed on the processing tool rest, a screw rod is installed at the output end of the positioning driving motor, and the screw rod penetrates through and is in threaded connection with the processing tool rest.
Through the technical scheme, the screw rod can be driven by the forward and reverse rotation of the positioning driving motor, and the machining tool rest can be directly driven to slide along the first sliding groove by the rotation of the screw rod, so that the driving effect is achieved; when the positioning driving motor stops operating, the processing tool rest can be locked at the position, and the positioning effect is achieved.
Preferably, the rotation axis is connected on the processing frame in a rotating mode, second driving motor installs on the processing frame and is located axis of rotation one side, second driving motor's power passes through the driving medium and transmits to the axis of rotation on, the mounting bar is installed and is served in the axis of rotation, the axis of rotation middle part is transversely run through and is provided with cooling channel, cooling channel one end is towards place the platform, be equipped with the part of blowing on the processing frame, the part of blowing blows in gas in the cooling channel.
Through the technical scheme, in actual course of working, second driving motor can drive the transmission shaft and rotate, the transmission shaft drives the mounting bar and rotates, processing cutter on the mounting bar alright rotate, the article of processing production processing effect can be treated to the boring cutter on the processing cutter, at this moment, the part of blowing can blow in gas cooling channel, and this part of gas can blow off from processing cutter one side, on the one hand, can produce the cooling effect to the boring cutter, on the other hand, also will paste in time blowing off in the article bits of treating the processing article surface.
Preferably, each wall of the processing frame is provided with a mounting groove, a support frame body is arranged in each mounting groove, the support frame body can slide into the mounting groove, one side of the support frame body, which is close to the mounting groove, is provided with a spring, and the elasticity of the spring is applied to the support frame body and enables the support frame body to extend outwards towards the mounting groove;
the end parts of the support frame bodies between two adjacent processing frames can be abutted, each support frame body is positioned below the mounting bar, each support frame body is provided with a second sliding chute, and when the end parts of the support frame bodies between two adjacent processing frames are abutted, the interiors of the second sliding chutes on the corresponding two support frame bodies are communicated;
a second sliding block is arranged on the lower side wall of the mounting bar and can be connected in a second sliding groove in a sliding manner;
the mounting bar is connected with the rotating shaft through a bolt;
the support frame body slides and is connected on the outer frame wall of processing frame, it is equipped with limit screw to run through on the support frame body, be equipped with the spacing screw that supplies limit screw in the mounting groove.
According to the technical scheme, in a normal use state, the limiting screw is aligned to the limiting screw hole, the limiting screw drives the support frame body to move into the mounting groove, the support frame body extrudes the spring, the support frame body is located in the mounting groove, the second driving portion drives the workpiece to rotate, and the boring cutter in the workpiece can generate a machining effect on the workpiece;
when different batches of objects to be processed are replaced, the types of cutters adopted on the processing surfaces of the objects to be processed are different, at the moment, the limiting screw rod can be rotated and pulled out of the limiting screw hole, the supporting frame body can be popped out from the mounting groove by the spring, the mounting bar is detached from the rotating shaft, the second fixing block and the rolling body on the mounting bar can enter the second sliding groove of the supporting frame body, the mounting bar and the supporting frame body are pushed simultaneously, the end parts of the supporting frame bodies on two adjacent processing parts are abutted, a user can transfer the mounting bar from one supporting frame body to the other supporting frame body, and finally the mounting bar is mounted on the rotating shaft of the adjacent processing part; so the installation, avoid the trouble that traditional transportation process needs the loop wheel machine, transfer efficiency is high, easy operation.
Preferably, the second sliding block comprises a second fixed block which can be inserted into the second sliding groove, a rolling body is mounted at the end of the second fixed block, and the rolling body can be abutted against the groove wall of the second sliding groove.
Through above-mentioned technical scheme, at the mounting bar removal in-process, the rolling physical stamina of second fixed block tip offsets the friction with second spout cell wall, and frictional force between them is less relatively, moves smoothly nature height.
Preferably, the end part of the support frame body is provided with a magnet, and when the end parts of the support frame bodies between two adjacent processing frames are abutted, the magnets at the end parts of the support frame bodies attract each other.
Through above-mentioned technical scheme, when the support frame body tip of adjacent processing portion offseted, the magnet that is located support frame body tip can attract each other to increase the stability that the mounting bar transported.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment;
FIG. 2 is a schematic top view of the embodiment;
FIG. 3 is a schematic diagram of a side view of the embodiment;
FIG. 4 is a top partial cross-sectional view of the first embodiment;
FIG. 5 is a second partial sectional top view of the embodiment;
FIG. 6 is a schematic view of the processing section;
fig. 7 is a partial sectional structural view of the processed portion.
Reference numerals: 1. a bed frame; 2. placing a platform; 3. a processing section; 31. processing the frame; 32. a first driving section; 33. a second driving section; 331. a second drive motor; 34. processing a workpiece; 35. mounting a bar; 36. a first chute; 37. processing a cutter; 371. processing a tool rest; 372. boring cutter; 4. positioning a driving piece; 41. positioning a driving motor; 42. a screw; 5. a rotating shaft; 6. a cooling channel; 7. an air blowing member; 8. a support frame body; 9. a second chute; 10. a second slider; 11. a second fixed block; 12. a rolling body; 13. a magnet; 14. a limit screw; 15. a limiting screw hole; 16. a spring; 17. and (4) mounting the groove.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings 1-7 to make the technical solution of the present invention easier to understand and grasp.
The utility model provides a three-sided boring machine of numerical control, is equipped with the place the platform 2 that is used for placing the article of treating processing including placing in bedstead 1 on ground on bedstead 1, is equipped with three portion 3 of processing on bedstead 1, and portion 3 of processing distributes around place the platform 2, and every portion 3 homoenergetic of processing is processed the article of treating of installing on place the platform 2.
Wherein, two processing portions 3 are symmetrically arranged relative to the placing platform 2 and the workpieces 34 on the two processing portions 3 are oppositely arranged.
Every processing portion 3 all includes processing frame 31, first drive division 32, the upper surface at bedstead 1 is connected in sliding to processing frame 31, first drive division 32 is located the below position of processing frame 31, first drive division 32 is including installing the first driving motor on bedstead 1, be connected with driving screw on first driving motor's the output, the length direction of driving screw is the same with the direction of sliding of processing frame 31, driving screw runs through and threaded connection in processing frame 31, first driving motor drives driving screw and rotates, driving screw drives processing frame 31 and carries out round trip movement, every processing frame 31 can be moved toward the position that is close to or keeps away from place platform 2.
Each processing frame 31 is provided with a second driving portion 33 and a processed piece 34, the second driving portion 33 includes a second driving motor 331, the processed piece 34 is mounted on the side wall of the processing frame 31 close to the placing platform 2, the second driving motor 331 is used for the processed piece 34 to move, and the processed piece 34 can process the object to be processed placed on the placing platform 2.
Wherein, the machined part 34 includes mounting bar 35, processing cutter 37, is equipped with first spout 36 on mounting bar 35, and processing cutter 37 includes processing tool holder 371, boring cutter 372, and processing tool holder 371 slides and connects in first spout 36, and boring cutter 372 installs on processing tool holder 371, is equipped with location driving piece 4 on the mounting bar 35, and location driving piece 4 is used for driving processing tool holder 371 to slide and will process tool holder 371 and be located the assigned position. The positioning driving member 4 includes a positioning driving motor 41 mounted on the processing tool holder 371, a screw rod 42 is mounted on an output end of the positioning driving motor 41, and the screw rod 42 penetrates through and is in threaded connection with the processing tool holder 371.
The rotating shaft 5 is rotatably connected to the processing frame 31, the rotating shaft 5 horizontally penetrates through the processing frame 31, and the mounting bar 35 is detachably and fixedly connected to the end portion, close to the placing platform 2, of the rotating shaft 5 through bolts.
At least two positions of the second driving motor 331 are selected.
Firstly, the second driving motor 331 is installed on the upper frame wall of the processing frame 31, and the second driving motor 331 drives the rotating shaft 5 to rotate by means of a belt or other transmission members, and finally drives the whole installation bar 35 to rotate. At this time, the machining tools 37 on the mounting bar 35 are all eccentric to the center line of the rotating shaft 5.
Secondly, install second driving motor 331 on the frame wall that processing frame 31 deviates from place the platform 2, the output shaft of second driving motor 331 directly docks in axis of rotation 5, finally drives whole axis of rotation 5 and rotates. At this time, the machining tools 37 on the mounting bar 35 are all eccentric to the output shaft axis of the second drive motor 331.
However, no matter what motor mounting method is adopted, the length direction of the first sliding groove 36 on the mounting bar 35 is perpendicular to the rotation axis 5 center line of the rotation axis 5.
In addition, a cooling channel 6 transversely penetrates through the middle of the rotating shaft 5, one end of an opening of the cooling channel 6 faces the placing platform 2, an air blowing part 7 is arranged on the processing frame 31, an external air pump can be selected as the air blowing part 7, and air is blown into the cooling channel 6 by the air blowing part 7.
All be equipped with mounting groove 17 on every processing frame 31 framed wall, the length direction of mounting groove 17 is the horizontal direction, mounting groove 17 is located the below position of mounting bar 35, all be equipped with support frame body 8 in every mounting groove 17, this mounting groove 17 is T type groove, support frame body 8 can slide in to mounting groove 17 or outstanding outside mounting groove 17, support frame body 8 is close to one side of mounting groove 17 and installs spring 16, spring 16 elasticity is applyed and is being extended outside support frame body 8 and messenger support frame body 8 outside mounting groove 17.
The end of the support frame body 8 is provided with a magnet 13, the end of the support frame body 8 between two adjacent processing frames 31 can be abutted, and the magnets 13 at the end of the support frame body 8 attract each other. Each support frame body 8 is positioned below the mounting bar 35, a second sliding groove 9 is formed in the side wall, close to the mounting bar 35, of each support frame body 8, and when the end portions of the support frame bodies 8 between two adjacent processing frames 31 are abutted, the interiors of the second sliding grooves 9 on the corresponding two support frame bodies 8 are communicated; a second sliding block 10 is arranged on the lower side wall of the mounting bar 35, and the second sliding block 10 can be connected in the second sliding groove 9 in a sliding manner; the second sliding block 10 comprises a second fixed block 11 which can be inserted into the second sliding chute 9, the end part of the second fixed block 11 is provided with a rolling body 12, and the rolling body 12 can be abutted against the chute wall of the second sliding chute 9; the second fixed block 11 and the rolling elements 12 can smoothly slide into the second runner 9 of the other mounting bar 35 from the second runner 9 of one of the mounting bars 35.
In the specific implementation process:
during the normal material processing process, a material to be processed is placed on the placing platform 2 of the bedstead 1, the limiting screw 14 is rotated, the limiting screw 14 can be matched with the limiting screw hole 15, the limiting screw 14 extrudes the support frame body 8, the support frame body 8 extrudes the spring 16, and the whole support frame body 8 can retract into the mounting groove 17; according to the aperture size of the material to be processed, the positioning driving motor 41 is driven, the positioning driving motor 41 drives the screw rod 42 to rotate, the screw rod 42 can drag the processing tool holder 371 to slide until the processing tool holder 371 and the boring tool 372 move to the desired position, and the positioning driving motor 41 stops acting. Second driving motor 331 drives axis of rotation 5 and rotates, and axis of rotation 5 drives mounting bar 35 and rotates, and meanwhile, first drive division 32 also can drive whole processing frame 31 and remove toward placing platform 2 directions, and boring cutter 372 on the mounting bar 35 just can contact and treat the processing material, accomplishes processing.
When the mounting bars 35 and the processing tools 37 on different processing frames 31 are replaced and transferred, the limiting screw 14 is loosened, the limiting screw 14 is separated from the limiting screw hole 15, the spring 16 applies force to the supporting frame body 8, the second sliding groove 9 on the supporting frame body 8 is exposed out of the mounting groove 17, then the bolt between the mounting bar 35 and the rotating shaft 5 is loosened, the mounting bar 35 moves vertically and downwards, the second fixing blocks 11 and the rolling bodies 12 on the mounting bar 35 enter the second sliding groove 9, the mounting bar 35 and the supporting frame body 8 move towards the same side, the supporting frame bodies 8 on the adjacent processing frames 31 slide outwards until the end portions of the two supporting frame bodies 8 are abutted, the magnets 13 at the end portions of the two supporting frame bodies 8 attract each other, then the mounting bar 35 is pushed, the second fixing blocks 11 and the rolling bodies 12 on the mounting bar 35 move along the second sliding grooves 9 on the two supporting frame bodies 8, until successful transfer to the adjacent processing block 31.
The above are only typical examples of the present invention, and besides, the present invention may have other embodiments, and all the technical solutions formed by equivalent substitutions or equivalent changes are within the scope of the present invention as claimed.
Claims (4)
1. A numerical control three-sided boring machine comprises a bed frame (1) placed on the ground, wherein a placing platform (2) for placing an object to be processed is arranged on the bed frame (1), and is characterized in that three processing parts (3) are arranged on the bed frame (1), and the processing parts (3) are distributed around the placing platform (2);
each processing portion (3) comprises a processing frame (31) and a first driving portion (32), the processing frame (31) is connected to the upper surface of the bed frame (1) in a sliding manner, the first driving portion (32) is installed on the bed frame (1), the first driving portion (32) is used for driving the processing frame (31) to move towards or away from the placing platform (2), a second driving portion (33) and a workpiece (34) are arranged on the processing frame (31), the second driving portion (33) is used for driving the workpiece (34) to move, the workpiece (34) is located at one side close to the placing platform (2), and the workpiece (34) is used for processing an object to be processed placed on the placing platform (2);
the second driving part (33) includes a second driving motor (331);
the machining piece (34) comprises a mounting bar (35) and a machining tool (37), the mounting bar (35) is mounted at the output end of the second driving motor (331), the machining tool (37) is mounted on the mounting bar (35), and the position of the machining tool (37) is eccentric to the driving axis of the second driving motor (331);
the mounting bar (35) is provided with a first sliding groove (36), the length direction of the first sliding groove (36) is perpendicular to the driving axis of the second driving motor (331), the machining tool (37) comprises a machining tool holder (371) and a boring tool (372), the machining tool holder (371) is connected in the first sliding groove (36) in a sliding mode, the boring tool (372) is installed on the machining tool holder (371), the mounting bar (35) is provided with a positioning driving piece (4), and the positioning driving piece (4) is used for driving the machining tool holder (371) to slide and positioning the machining tool holder (371) at a designated position;
the positioning driving piece (4) comprises a positioning driving motor (41) arranged on the machining tool holder (371), a screw rod (42) is arranged at the output end of the positioning driving motor (41), and the screw rod (42) penetrates through and is in threaded connection with the machining tool holder (371);
the processing frame (31) is rotatably connected with a rotating shaft (5), the second driving motor (331) is installed on the processing frame (31) and located on one side of the rotating shaft (5), the power of the second driving motor (331) is transmitted to the rotating shaft (5) through a transmission part, the installation strip (35) is installed at the shaft end of the rotating shaft (5), a cooling channel (6) transversely penetrates through the middle of the rotating shaft (5), one end of the cooling channel (6) faces the placing platform (2), a blowing component (7) is arranged on the processing frame (31), and gas is blown into the cooling channel (6) by the blowing component (7);
each processing frame (31) is provided with a mounting groove (17) on the frame wall, a supporting frame body (8) is arranged in each mounting groove (17), the supporting frame body (8) can slide into the mounting groove (17), a spring (16) is installed on one side, close to the mounting groove (17), of the supporting frame body (8), and the elastic force of the spring (16) is applied to the supporting frame body (8) and the supporting frame body (8) extends out of the mounting groove (17);
the end parts of the support frame bodies (8) between two adjacent processing frames (31) can be abutted, each support frame body (8) is positioned below the mounting bar (35), each support frame body (8) is provided with a second sliding chute (9), and when the end parts of the support frame bodies (8) between two adjacent processing frames (31) are abutted, the interiors of the second sliding chutes (9) on the corresponding two support frame bodies (8) are communicated;
a second sliding block (10) is arranged on the lower side wall of the mounting bar (35), and the second sliding block (10) can be connected in a second sliding groove (9) in a sliding manner;
the mounting bar (35) is connected with the rotating shaft (5) through a bolt;
support body (8) and slide and connect on the outer frame wall of processing frame (31), it is equipped with stop screw (14) to run through on support body (8), be equipped with in mounting groove (17) and supply stop screw (14) screw in's spacing screw (15).
2. A numerically controlled three-sided boring machine according to claim 1, characterized in that the two machining parts (3) are arranged symmetrically with respect to the placement platform (2) and the workpieces (34) of the two machining parts (3) are arranged opposite each other.
3. A numerically controlled three-sided boring machine according to claim 1, characterized in that said second slide (10) comprises a second fixed block (11) insertable into the second chute (9), the end of said second fixed block (11) being fitted with rolling elements (12), said rolling elements (12) being able to come into contact against the walls of the second chute (9).
4. A numerically controlled three-sided boring machine according to claim 3, characterized in that the ends of the support frame bodies (8) are provided with magnets (13), and when the ends of the support frame bodies (8) between two adjacent processing frames (31) are abutted, the magnets (13) at the ends of the support frame bodies (8) attract each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910986865.2A CN110788359B (en) | 2019-10-17 | 2019-10-17 | Numerical control three-sided boring machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910986865.2A CN110788359B (en) | 2019-10-17 | 2019-10-17 | Numerical control three-sided boring machine |
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| CN110788359A CN110788359A (en) | 2020-02-14 |
| CN110788359B true CN110788359B (en) | 2020-09-08 |
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| CN114473530B (en) * | 2022-04-14 | 2022-06-21 | 河南祥瑞汽车部件有限公司 | Carousel formula multistation brake caliper body jar hole integration processingequipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4792265A (en) * | 1984-06-19 | 1988-12-20 | Rottler Manufacturing Company | Engine boring and surfacing machine |
| CN2276849Y (en) * | 1996-01-30 | 1998-03-25 | 张新添 | Vernier precision hole-boring blade |
| CN201380301Y (en) * | 2009-05-04 | 2010-01-13 | 重庆耐普登机床有限公司 | Motorcycle cylinder three-face precision multiple-spindle numeral control boring machine tool |
| CN201906853U (en) * | 2010-12-30 | 2011-07-27 | 宁夏银川大河数控机床有限公司 | NC vertical drilling machine for arranging tool magazine aside |
| CN204209164U (en) * | 2014-11-01 | 2015-03-18 | 浙江特普机床制造有限公司 | A kind of three special valve boring machines |
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