CN110802409A - Small-size surely bore all-in-one - Google Patents
Small-size surely bore all-in-one Download PDFInfo
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- CN110802409A CN110802409A CN201911024099.8A CN201911024099A CN110802409A CN 110802409 A CN110802409 A CN 110802409A CN 201911024099 A CN201911024099 A CN 201911024099A CN 110802409 A CN110802409 A CN 110802409A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/02—Machine tools for performing different machining operations
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- 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
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
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- Drilling And Boring (AREA)
Abstract
The invention discloses a small-sized cutting and drilling integrated machine which comprises a drilling mechanism, a base, a cutting mechanism, a power switching mechanism and a cutting frame, wherein the drilling mechanism, the cutting mechanism and the power switching mechanism are all arranged on the cutting frame, the power switching mechanism is respectively connected with the drilling mechanism and the cutting mechanism, the cutting frame is hinged with the base, a motor is arranged on the cutting frame, and the motor is connected with the power switching mechanism through a belt. The drilling mechanism and the cutting mechanism are integrated into a whole and are connected through the power switching mechanism, power can be switched when the drilling mechanism and the cutting mechanism are used, the utilization efficiency of the output power of the motor is improved, the angles of the drilling mechanism and the cutting mechanism can be adjusted when the drilling mechanism and the cutting mechanism are used, and the machining requirements of different workpieces are met.
Description
Technical Field
The invention belongs to the field of machining equipment, and particularly relates to a small cutting and drilling integrated machine.
Background
The steel pipe, the aluminum section bar, the square steel and other metal materials need to be cut and drilled in many times, the cutting and the drilling are respectively completed by a cutting machine and a drill floor, the cut materials need to be carried between two devices, not only the labor intensity is increased, but also the labor efficiency is reduced, meanwhile, a user needs to purchase the cutting machine and the drill floor respectively, the cost of purchasing devices is improved, for this reason, some devices capable of combining the cutting machine and the drill floor into a whole are developed, for example, Chinese patent with application number of 201810096758.8 discloses a drilling and cutting integrated machine for processing strip-shaped parts, which comprises a supporting plate, a workbench is erected on the supporting plate, a lead screw sliding table is placed on the workbench, a sliding table is arranged on the lead screw sliding table, a jig is arranged on the sliding table, the upper end of the jig is provided with a strip-shaped positioning groove, and the length direction of the positioning groove is vertical, the jig is also provided with a cutting groove, the cutting groove is perpendicular to the positioning groove, the workbench is provided with a cutting mechanism and a drilling mechanism, the drilling mechanism is provided with a drill bit, and the cutting mechanism is provided with a circular saw blade; the side that lies in the tool on the slip table is equipped with hold-down mechanism, and the dead ahead that lies in the tool on the slip table is equipped with the positioning mechanism who meets with the constant head tank, and the side that lies in the tool on the slip table still is equipped with the actuating mechanism that the drive part gos forward in the constant head tank, but when using, the drill bit and the saw bit of this equipment are by motor drive simultaneously, the utilization ratio of the motor power that reduces, and drill bit and saw bit rotate simultaneously, influence operator's use easily when using.
Disclosure of Invention
In order to solve the technical problem, the invention provides a small cutting and drilling integrated machine which can solve the problem of inconvenient use in the prior art.
The invention is realized by the following technical scheme.
The invention provides a small-sized cutting and drilling integrated machine which comprises a drilling mechanism, a base, a cutting mechanism, a power switching mechanism and a cutting frame, wherein the drilling mechanism, the cutting mechanism and the power switching mechanism are all arranged on the cutting frame, the power switching mechanism is respectively connected with the drilling mechanism and the cutting mechanism, the cutting frame is hinged with the base, a motor is arranged on the cutting frame, and the motor is connected with the power switching mechanism through a belt.
Cutting mechanism includes cutting piece, pivot, the pivot is installed on the cutting frame through rotating the seat, and pivot one end is connected with power switching mechanism, and the other end is connected with the cutting piece, is equipped with the backplate outside the cutting piece, and the backplate is installed and is rotated the seat upside.
The power switching mechanism comprises a sliding shaft, a driven pulley, a gear shaft and a bevel gear A, wherein the sliding shaft is installed on the cutting frame 303 through a support B and a support C, the driven pulley is coaxially installed on the sliding shaft, the gear shaft is installed on the cutting frame through the support A, one end of the gear shaft is connected with the bevel gear A, the other end of the gear shaft is connected with one end of the sliding shaft through a lantern ring A, and the other end of the sliding shaft is connected with the rotating shaft through a lantern ring B.
The peripheries of the sliding shaft, the gear shaft and the rotating shaft are provided with key teeth, and the inner holes of the lantern ring A and the lantern ring B are provided with grooves corresponding to the key teeth.
The lantern ring A is connected with the lantern ring B through a shifting lever, and the lower portion of the shifting lever is installed on the cutting frame through a sliding rail.
The base includes bottom plate, activity carousel the activity carousel passes through fixed carousel and bottom plate articulated, and is equipped with locking screw A between activity carousel and the fixed carousel, establishes the frame on the activity carousel, and grudging post upper portion is articulated with the cutting frame, and still is connected through the guide bar between grudging post and the cutting frame, and the guide bar upper end is articulated with the cutting frame, and the guide bar lower extreme passes through the uide bushing and is connected.
The guide sleeve is hinged with the vertical frame, the guide rod penetrates through the middle of the guide sleeve and is connected with the guide sleeve through a locking screw B, and one end of the guide rod is further connected with the guide sleeve through a spring.
The drilling mechanism comprises a bevel gear B, a box body and a driving shaft, wherein a threaded rod and a nut are arranged on one side of the box body, the box body is connected with the cutting frame through the threaded rod and the nut, the driving shaft is vertically installed in the box body through a bearing, the bevel gear B is sleeved on the driving shaft through key teeth, and the lower portion of the bevel gear B is connected with the box body through the bearing.
The cutting frame is provided with a connecting disc, the connecting disc is provided with an arc-shaped guide groove, the circle center of the guide groove is located on the central axis of the gear shaft, and the box body is connected with the guide groove through a threaded rod and a nut.
The drive shaft lower part is equipped with the briquetting, and briquetting one side suit is in the drive shaft lower part, and the opposite side passes through the guide rail to be connected with the box, and the guide rail is parallel with the drive shaft, and briquetting one side is equipped with the driving tooth, installs the carousel on the box, and the carousel passes through the gear and is connected with the briquetting.
The invention has the beneficial effects that: the drilling mechanism and the cutting mechanism are integrated into a whole and connected through the power switching mechanism, power can be switched during use, the utilization efficiency of the output power of the motor is improved, the drilling mechanism and the cutting mechanism can be adjusted in angle during use, and the machining requirements of different workpieces are met.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a power switching mechanism;
FIG. 3 is a schematic view of the cutting mechanism;
FIG. 4 is a schematic structural view of a drilling mechanism;
FIG. 5 is a schematic view of the structure of the base;
FIG. 6 is a schematic structural view of a cutting frame;
in the figure: 1-drilling mechanism, 2-base, 3-cutting mechanism, 4-power switching mechanism, 101-bevel gear B, 102-threaded rod, 103-nut, 104-box, 105-driving shaft, 106-pressing block, 107-rotating disc, 201-spring, 202-locking screw A, 203-bottom plate, 204-fixed rotating disc, 205-movable rotating disc, 206-locking screw B, 207-guide sleeve, 208-guide rod, 209-vertical frame, 301-connecting disc, 302-sliding rail, 303-cutting frame, 304-handle, 305-rotating shaft, 306-cutting blade, 308-protective plate, 309-motor, 311-rotating seat, 312-support A, 313-support B, 314-support C, 401-sliding shaft, 402-driven pulley, 403-gear shaft, 404-bevel gear a, 405-collar a, 406-shift lever, 407-collar B, 408-belt.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
As shown in fig. 1 to 6, a small-size cutting and drilling integrated machine comprises a drilling mechanism 1, a base 2, a cutting mechanism 3, a power switching mechanism 4 and a cutting frame 303, wherein the drilling mechanism 1, the cutting mechanism 3 and the power switching mechanism 4 are all installed on the cutting frame 303, the power switching mechanism 4 is respectively connected with the drilling mechanism 1 and the cutting mechanism 3, the cutting frame 303 is hinged to the base 2, a motor 309 is arranged on the cutting frame 303, the motor 309 is connected with the power switching mechanism 4 through a belt 408, the motor drives the power switching mechanism 4 to rotate through the belt 408, the switching mechanism 4 can adjust power output to different devices according to use requirements, the utilization rate of output power of the motor 309 is improved, only one of the drilling mechanism 1 and the cutting mechanism 3 is in a rotating state, and influence on processing by another mechanism during use is avoided.
As shown in fig. 3, the cutting mechanism 3 includes a cutting blade 306 and a rotating shaft 305, the rotating shaft 305 is installed on the cutting frame 303 through a rotating base 311, one end of the rotating shaft 305 is connected with the power switching mechanism 4, the other end of the rotating shaft is connected with the cutting blade 306, a guard plate 308 is arranged outside the cutting blade 306, the guard plate 308 is installed on the upper side of the rotating base 311, after the motor 309 drives the power switching mechanism 4, the power switching mechanism 4 distributes power to the rotating shaft 305, the rotating shaft 305 drives the cutting blade 306 to rotate at a high speed so as to facilitate cutting, and the guard plate 308 can prevent chips during cutting from reaching the body of a worker, thereby improving safety.
As shown in fig. 2, the power switching mechanism 4 includes a sliding shaft 401, a driven pulley 402, a gear shaft 403, and a bevel gear a404, the sliding shaft 401 is mounted on the cutting frame 303 through a support B313 and a support C314, the driven pulley 402 is coaxially mounted on the sliding shaft 401, the gear shaft 403 is mounted on the cutting frame 303 through a support a312, one end of the gear shaft 403 is connected with the bevel gear a404, the other end is connected with one end of the sliding shaft 401 through a collar a405, the other end of the sliding shaft 401 is connected with the rotating shaft 305 through a collar B407, when the drilling mechanism 1 requires power, the shift lever 406 is pushed to move towards the drilling mechanism 1 side, the shift lever 406 drives the collar a405 and the collar B407 to move simultaneously, the sliding shaft 401 is connected with the gear shaft 403, the sliding shaft 401 is disconnected with the rotating shaft 305, the power of the motor is completely output to the drilling mechanism 1, when the cutting mechanism 3 requires power, the shift lever, the shifting lever 406 drives the lantern ring A405 and the lantern ring B407 to move simultaneously, so that the sliding shaft 401 is connected with the rotating shaft 305, meanwhile, the sliding shaft 401 is disconnected from the gear shaft 403, and the power of the motor is completely output to the cutting mechanism 3.
The peripheries of the sliding shaft 401, the gear shaft 403 and the rotating shaft 305 are provided with key teeth, the inner holes of the lantern ring A405 and the lantern ring B407 are provided with grooves corresponding to the key teeth, and the key teeth are matched with the grooves, so that the lantern ring A405 and the lantern ring B407 can slide on the shaft, and can be prevented from sliding at the same time, and power switching is facilitated.
The lantern ring A405 and the lantern ring B407 are connected through the shifting rod 406, the lower portion of the shifting rod 406 is mounted on the cutting frame 303 through the sliding rail 302, the shifting rod 406 can drive the lantern ring A405 and the lantern ring B407 to move at the same time, power distribution is completed, the shifting rod 406 can be limited in the sliding rail 302 through common structures such as buckles, and the shifting rod 406 is prevented from shifting when the cutting machine is used.
As shown in fig. 5, the base 2 includes a bottom plate 203, a movable turntable 205, the movable turntable 205 is hinged to the bottom plate 203 through a fixed turntable 204, a locking screw a202 is disposed between the movable turntable 205 and the fixed turntable 204, a frame 209 is disposed on the movable turntable 205, an upper portion of the frame 209 is hinged to a cutting frame 303, the frame 209 is further connected to the cutting frame 303 through a guide rod 208, an upper end of the guide rod 208 is hinged to the cutting frame 303, a lower end of the guide rod 208 is connected to the guide sleeve 207, the movable turntable 205 can rotate on the fixed turntable 204 to adjust an angle of the cutting blade 306, and a position of the drilling mechanism 1 can be adjusted to rotate the hole at different positions, and the locking screw a202 can lock the movable turntable 205 to prevent the movable turntable 205 from rotating during use and affect a machining precision.
The guide sleeve 207 is hinged to the vertical frame 209, the guide rod 208 penetrates through the middle of the guide sleeve 207 and is connected with the guide sleeve 207 through a locking screw B206, one end of the guide rod 208 is further connected with the guide sleeve 207 through a spring 201, after the handle 304 is pressed, one side of the cutting frame 303 moves downwards and moves upwards at the same time, the spring 201 is lengthened, the spring 201 can reset after cutting is finished, meanwhile, the guide rod 208 can be locked through the locking screw B206 when the drilling mechanism 1 is used, and the cutting frame 303 is prevented from rotating when in use and influences machining precision.
The drilling mechanism 1 comprises a bevel gear B101, a box body 104 and a driving shaft 105, wherein a threaded rod 102 and a nut 103 are arranged on one side of the box body 104, the box body 104 is connected with a cutting frame 303 through the threaded rod 102 and the nut 103, the driving shaft 105 is vertically installed in the box body 104 through a bearing, the bevel gear B101 is sleeved on the driving shaft 105 through a key tooth, the lower part of the bevel gear B101 is connected with the box body 104 through the bearing, a bevel gear A404 drives the bevel gear B101 to rotate, power is distributed to the driving shaft 105, meanwhile, the rotating speed is reduced, the torque is improved, and the lower part of the driving shaft 105 is connected with.
The cutting frame 303 is provided with a connecting disc 301, the connecting disc 301 is provided with an arc-shaped guide groove, the circle center of the guide groove is positioned on the central axis of the gear shaft 403, the box body 104 is connected with the guide groove through the threaded rod 102 and the nut 103, after the nut 103 is loosened, the angle of the box body 104 can be adjusted so as to complete hole rotating work at different angles, and the circle center of the guide groove is positioned on the central axis of the gear shaft 403, so that when the angle of the box body 104 is adjusted, the bevel gear A404 can still be meshed with the bevel gear B101.
The drilling machine is characterized in that a pressing block 106 is arranged on the lower portion of the driving shaft 105, one side of the pressing block 106 is sleeved on the lower portion of the driving shaft 105, the other side of the pressing block 106 is connected with the box body 104 through a guide rail, the guide rail is parallel to the driving shaft 105, a transmission gear is arranged on one side of the pressing block 106, a rotary table 107 is mounted on the box body 104, the rotary table 107 is connected with the pressing block 106 through a gear, and after the rotary table 107 rotates, the pressing block 106 can.
Claims (10)
1. The utility model provides a small-size surely bore all-in-one which characterized in that: the drilling machine comprises a drilling mechanism (1), a base (2), a cutting mechanism (3), a power switching mechanism (4) and a cutting frame (303), wherein the drilling mechanism (1), the cutting mechanism (3) and the power switching mechanism (4) are all arranged on the cutting frame (303), and the power switching mechanism (4) is respectively connected with the drilling mechanism (1) and the cutting mechanism (3); cutting frame (303) are articulated with base (2), are equipped with motor (309) on cutting frame (303), and motor (309) are connected with power switching mechanism (4) through belt (408).
2. A small-sized cutting and drilling all-in-one machine as claimed in claim 1, wherein: cutting mechanism (3) are including cutting piece (306), pivot (305), install on cutting frame (303) through rotating seat (311) pivot (305), and pivot (305) one end is connected with power switching mechanism (4), and the other end is connected with cutting piece (306), and cutting piece (306) is equipped with backplate (308) outward, and backplate (308) are installed and are rotated seat (311) upside.
3. A small-sized cutting and drilling all-in-one machine as claimed in claim 1, wherein: the power switching mechanism (4) comprises a sliding shaft (401), a driven pulley (402), a gear shaft (403) and a bevel gear A (404), the sliding shaft (401) is mounted on the cutting frame 303 through a support B (313) and a support C (314), the driven pulley (402) is coaxially mounted on the sliding shaft (401), the gear shaft (403) is mounted on the cutting frame (303) through a support A (312), one end of the gear shaft (403) is connected with the bevel gear A (404), the other end of the gear shaft is connected with one end of the sliding shaft (401) through a sleeve ring A (405), and the other end of the sliding shaft (401) is connected with the rotating shaft (305) through a sleeve ring B (407).
4. A small-sized cutting and drilling all-in-one machine as claimed in claim 3, wherein: the periphery of the sliding shaft (401), the gear shaft (403) and the rotating shaft (305) is provided with key teeth, and the inner holes of the lantern ring A (405) and the lantern ring B (407) are provided with grooves corresponding to the key teeth.
5. A small-sized cutting and drilling all-in-one machine as claimed in claim 3, wherein: the lantern ring A (405) is connected with the lantern ring B (407) through a shifting rod (406), and the lower part of the shifting rod (406) is installed on the cutting frame (303) through a sliding rail (302).
6. A small-sized cutting and drilling all-in-one machine as claimed in claim 1, wherein: base (2) include bottom plate (203), activity carousel (205) are articulated through fixed carousel (204) and bottom plate (203), and are equipped with locking screw A (202) between activity carousel (205) and fixed carousel (204), establish frame (209) on activity carousel (205), grudging post (209) upper portion is articulated with cutting frame (303), and still be connected through guide bar (208) between grudging post (209) and cutting frame (303), guide bar (208) upper end is articulated with cutting frame (303), guide bar (208) lower extreme passes through uide bushing (207) and is connected.
7. A small-size cutting and drilling all-in-one machine as claimed in claim 6, characterized in that: the guide sleeve (207) is hinged with the stand (209), the guide rod (208) penetrates through the middle of the guide sleeve (207) and is connected with the guide sleeve (207) through a locking screw B (206), and one end of the guide rod (208) is connected with the guide sleeve (207) through a spring (201).
8. A small-sized cutting and drilling all-in-one machine as claimed in claim 1, wherein: the drilling mechanism (1) comprises a bevel gear B (101), a box body (104) and a driving shaft (105), a threaded rod (102) and a nut (103) are arranged on one side of the box body (104), the box body (104) is connected with a cutting frame (303) through the threaded rod (102) and the nut (103), the driving shaft (105) is vertically installed in the box body (104) through a bearing, the bevel gear B (101) is sleeved on the driving shaft (105) through key teeth, and the lower portion of the bevel gear B (101) is connected with the box body (104) through the bearing.
9. A small-sized cutting and drilling all-in-one machine as claimed in claim 8, wherein: the cutting frame (303) is provided with a connecting disc (301), the connecting disc (301) is provided with an arc-shaped guide groove, the circle center of the guide groove is located on the central axis of the gear shaft (403), and the box body (104) is connected with the guide groove through a threaded rod (102) and a nut (103).
10. A small-sized cutting and drilling all-in-one machine as claimed in claim 8, wherein: the lower part of the driving shaft (105) is provided with a pressing block (106), one side of the pressing block (106) is sleeved on the lower part of the driving shaft (105), the other side of the pressing block (106) is connected with the box body (104) through a guide rail, the guide rail is parallel to the driving shaft (105), one side of the pressing block (106) is provided with a transmission gear, a turntable (107) is installed on the box body (104), and the turntable (107) is connected with the pressing block (106) through a gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911024099.8A CN110802409A (en) | 2019-10-25 | 2019-10-25 | Small-size surely bore all-in-one |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911024099.8A CN110802409A (en) | 2019-10-25 | 2019-10-25 | Small-size surely bore all-in-one |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110802409A true CN110802409A (en) | 2020-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911024099.8A Pending CN110802409A (en) | 2019-10-25 | 2019-10-25 | Small-size surely bore all-in-one |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110802409A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111778827A (en) * | 2020-07-23 | 2020-10-16 | 湖南汉坤实业有限公司 | Multifunctional pavement cutting equipment |
| CN111809494A (en) * | 2020-07-23 | 2020-10-23 | 湖南汉坤实业有限公司 | Cutting machine is restoreed on road surface |
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| US6257351B1 (en) * | 1999-06-29 | 2001-07-10 | Microaire Surgical Instruments, Inc. | Powered surgical instrument having locking systems and a clutch mechanism |
| CN2523577Y (en) * | 2002-02-08 | 2002-12-04 | 何财柏 | Multifunctional carpenter processing combine |
| CN2723086Y (en) * | 2004-09-06 | 2005-09-07 | 胡宗甫 | Telescopic rotary angle type hand held electric tool |
| CN201161424Y (en) * | 2008-02-02 | 2008-12-10 | 浙江双健机电有限公司 | Combined woodworking machine of planer and saw |
| CN201871978U (en) * | 2010-11-26 | 2011-06-22 | 衡阳风顺车桥有限公司 | Indexing fixture for drilling on cone and ratholing on cylinder |
| CN103394754A (en) * | 2013-08-16 | 2013-11-20 | 宁波德丰动力科技有限公司 | Cutting machine |
| CN203635988U (en) * | 2013-12-31 | 2014-06-11 | 福建华日汽车配件有限公司 | Angle-adjustable drilling machine |
| CN108081215A (en) * | 2018-01-10 | 2018-05-29 | 广州华立科技职业学院 | Hand bores saw and turns round all-in-one machine |
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2019
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6257351B1 (en) * | 1999-06-29 | 2001-07-10 | Microaire Surgical Instruments, Inc. | Powered surgical instrument having locking systems and a clutch mechanism |
| CN2523577Y (en) * | 2002-02-08 | 2002-12-04 | 何财柏 | Multifunctional carpenter processing combine |
| CN2723086Y (en) * | 2004-09-06 | 2005-09-07 | 胡宗甫 | Telescopic rotary angle type hand held electric tool |
| CN201161424Y (en) * | 2008-02-02 | 2008-12-10 | 浙江双健机电有限公司 | Combined woodworking machine of planer and saw |
| CN201871978U (en) * | 2010-11-26 | 2011-06-22 | 衡阳风顺车桥有限公司 | Indexing fixture for drilling on cone and ratholing on cylinder |
| CN103394754A (en) * | 2013-08-16 | 2013-11-20 | 宁波德丰动力科技有限公司 | Cutting machine |
| CN203635988U (en) * | 2013-12-31 | 2014-06-11 | 福建华日汽车配件有限公司 | Angle-adjustable drilling machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111778827A (en) * | 2020-07-23 | 2020-10-16 | 湖南汉坤实业有限公司 | Multifunctional pavement cutting equipment |
| CN111809494A (en) * | 2020-07-23 | 2020-10-23 | 湖南汉坤实业有限公司 | Cutting machine is restoreed on road surface |
| CN111778827B (en) * | 2020-07-23 | 2021-07-27 | 湖南汉坤实业有限公司 | Multifunctional pavement cutting equipment |
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Application publication date: 20200218 |