CN110645008B - Translational push-pull hob cutter system and cutter changing method thereof - Google Patents
Translational push-pull hob cutter system and cutter changing method thereof Download PDFInfo
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- CN110645008B CN110645008B CN201911055356.4A CN201911055356A CN110645008B CN 110645008 B CN110645008 B CN 110645008B CN 201911055356 A CN201911055356 A CN 201911055356A CN 110645008 B CN110645008 B CN 110645008B
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000009434 installation Methods 0.000 claims description 17
- 238000003466 welding Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 description 6
- 230000005641 tunneling Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
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- Automatic Tool Replacement In Machine Tools (AREA)
Abstract
The invention discloses a translational push-pull hob cutter system and a hob changing method thereof, and solves the problems that in the prior art, the automation degree of cutter changing is low, and the degree of matching with a hob changing robot is not high. The invention comprises a cutter box and a hob, wherein the inner walls of two sides of the cutter box are provided with a fixture block and a translational push-pull locking mechanism for clamping and fixing a hob shaft, and the fixture block corresponds to the translational push-pull locking mechanism. According to the invention, the matching degree of the translation push-pull locking mechanism and the tool changing robot is high, the locking nut is rotated by controlling the translation push-pull locking mechanism by the tool changing robot, the threaded rod is driven to vertically move up and down, the translation pressing block is enabled to do up-and-down translation movement, whether the translation pressing block presses the cutter shaft of the hob or not is realized, the rapid and accurate tool changing is realized, and the tool changing efficiency is improved.
Description
Technical Field
The invention relates to the technical field of shield cutters, in particular to a translation push-pull hob cutter system and a hob changing method thereof.
Background
The cutter consumption is big, the change is frequent in full-face entry driving machine work progress, and cutter tool changing operating time accounts for tunnel construction cycle more than 10%, and current cutter tool changing work mainly relies on manual work, and the operation potential safety hazard under construction environment such as big buried depth, high water pressure is big, major incident such as casualties easily appears. According to statistics, nearly 70% of tunnel construction safety accidents in China are directly related to manual tool changing operation, and the international industry problem of tool changing danger becomes a bottleneck for restricting tunnel construction safety and efficiency under complex geological conditions. In 2022, the total length of tunnels such as subways, highways and railways in China is estimated to exceed 10000 kilometers, wherein medium-length and extra-long tunnels account for about 2/3, and huge market demands put higher requirements on the construction efficiency and safety of full-face tunneling equipment. At present, the disc cutters of the shield tunneling machine and the TBM are mainly fixed on the cutter seats in a mode of connecting C-shaped blocks and bolts, the mode has high reliability, but the mode needs to be completed by cooperation of a plurality of people during disassembly, time and labor are wasted, and the automation of cutter replacement is difficult to realize by the installation mode. Therefore, the tool detection and tool changing operation is imperative to be realized in a high-efficiency and safe 'robot changing' operation mode. In order to realize efficient and rapid machine tool changing, an original cutter system needs to be improved, and aiming at the problem, a novel hob cutter system matched with the original cutter system needs to be researched and developed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a translation push-pull hob cutter system and a cutter changing method thereof, and solves the problems that in the prior art, the cutter changing automation degree is low and the degree of matching with a cutter changing robot is not high.
The technical scheme of the invention is realized as follows: a translational push-pull hob cutter system comprises a cutter box and a hob, wherein a clamping block and a translational push-pull locking mechanism are arranged on the inner walls of two sides of the cutter box and used for clamping and fixing a hob cutter shaft, and the clamping block corresponds to the translational push-pull locking mechanism.
The clamping block is fixedly connected with the knife box through a fastening bolt, and the translation push-pull locking mechanism is movably connected with the knife box.
The inside of sword case is equipped with the mounting groove, and the bottom of mounting groove is equipped with the mounting hole of vertical setting, mounting hole and translation push-and-pull locking mechanism cooperation.
The translation push-pull locking mechanism comprises a translation pressing block, the translation pressing block is located in the mounting groove, a threaded rod is movably arranged on the lower portion of the translation pressing block and matched with the mounting hole, and a locking nut is arranged at one end, extending out of the mounting hole, of the threaded rod.
The translation briquetting is equipped with the unthreaded hole, and the upper end of threaded rod is rotated and is set up in the unthreaded hole, and the threaded rod is spacing at the unthreaded hole through the wear-resisting welding block that sets up in the unthreaded hole.
The mounting hole is a threaded hole matched with the threaded rod, the threaded rod is in threaded fit with the threaded hole, and the bottom of the mounting groove is provided with a vertically-arranged guide hole.
And the lower part of the translation pressing block is fixedly provided with a guide rod, and the guide rod is matched with the guide hole.
The mounting hole is a vertical waist hole, and the threaded rod penetrates through the vertical waist hole and can move left and right in the vertical waist hole.
The two ends of the knife box are provided with connecting plates in a clamping manner, and the connecting plates are detachably connected with the knife box.
A tool changing method of a translation push-pull hob cutter system comprises the following steps: s1: disassembling the cutter: a tool changing hand of the tool changing robot clamps the locking nut, the locking nut is rotated anticlockwise, the threaded rod moves upwards to push the translation pressing block out of the mounting groove, and at the moment, the translation pressing block is separated from a hob shaft; continuing to rotate the locking nut to make way for taking out the hob, and then taking out the hob;
s2: tool installation: and (3) putting a new hob into the hob box, clamping the hob shaft in the clamping block, clamping the locking nut by a hob changing hand of the hob changing robot, rotating the locking nut clockwise, pulling the translation pressing block into the mounting groove by downward movement of the threaded rod, contacting the hob shaft, and continuously rotating the locking nut until the translation pressing block presses the hob shaft to complete the installation of the hob.
A tool changing method of a translation push-pull hob cutter system comprises the following steps: firstly, disassembling a cutter: a tool changing hand of the tool changing robot clamps the locking nut, the locking nut is rotated anticlockwise, the threaded rod moves upwards to push the translation pressing block out of the mounting groove, and at the moment, the translation pressing block is separated from a hob shaft; then, a cutter changing hand of the cutter changing robot pushes the threaded rod to move rightwards to the right side of the vertical waist hole, a channel is made for taking out the hob, and then the hob is taken out;
secondly, cutter installation: put into the cutter box with new hobbing cutter, and make the hobbing cutter arbor card establish in the chuck block, the hand push threaded rod of tool changing robot moves the left side in vertical waist hole left side, makes the translation briquetting be located directly over the mounting groove, then tool changing hand of tool changing robot grips lock nut, clockwise rotation lock nut, threaded rod downstream with the translation briquetting down pull to the mounting groove in to contact with the hobbing cutter arbor, then continue to rotate lock nut until the translation briquetting compresses tightly the hobbing cutter arbor, accomplish the cutter installation.
According to the invention, the matching degree of the translation push-pull locking mechanism and the tool changing robot is high, the locking nut is rotated by controlling the translation push-pull locking mechanism by the tool changing robot, the threaded rod is driven to vertically move up and down, the translation pressing block is enabled to do up-and-down translation movement, whether the translation pressing block presses the cutter shaft of the hob or not is realized, the rapid and accurate tool changing is realized, and the tool changing efficiency is improved. The invention is matched with a tool changing robot, has high automation degree, is convenient to control and adjust, reduces the risk of manual tool changing, and improves the construction safety coefficient.
Drawings
In order to illustrate the embodiments of the invention more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, it being apparent that the drawings in the following description are only some embodiments of the invention, and that other drawings may be derived from those drawings by a person skilled in the art without inventive effort.
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a schematic half-section view of the present invention in example 2.
FIG. 3 is a schematic view showing the tool magazine of the present invention in example 2 without the tools.
Fig. 4 is a schematic view of the unlocked state of the translational push-pull locking mechanism of the present invention in embodiment 2.
Fig. 5 is a schematic view of the locking state of the translational push-pull locking mechanism in embodiment 2.
Fig. 6 is a half-sectional schematic view of the unlocked state of the translational push-pull locking mechanism of the present invention in embodiment 3.
Fig. 7 is a half-sectional schematic view of the locking state of the translational push-pull locking mechanism in embodiment 3.
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 obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
Furthermore, the clamping block 4 is fixedly connected with the cutter box 1 through the fastening bolt 7, the clamping block is fixed, whether the hob cutter shaft is locked or not is achieved through the movement of the translation push-pull locking mechanism relative to the clamping block, and the translation push-pull locking mechanism 5 is movably connected with the cutter box 1, so that the automation cutter changing is achieved through the matching of the translation push-pull locking mechanism and the cutter changing robot. The inside of toolbox 1 is equipped with mounting groove 8, and the bottom of mounting groove 8 is equipped with the mounting hole 9 of vertical setting, and mounting hole 9 cooperates with translation push-and-pull locking mechanism 5, and translation push-and-pull locking mechanism 5 cooperates with the mounting groove, location translation push-and-pull locking mechanism and direction of motion thereof realize quick tool changing.
Furthermore, as shown in fig. 2, the translational push-pull locking mechanism 5 includes a translational pressing block 501, and an edge of the translational pressing block 501 is matched with the hob shaft to realize stable anti-skid pressing of the hob shaft. The translation pressing block 501 is located in the installation groove 8, and a threaded rod 502 is movably arranged at the lower part of the translation pressing block 501, namely, the threaded rod can rotate in the translation sliding block. The threaded rod 502 is matched with the mounting hole 9, the threaded rod 502 penetrates through the mounting hole 9, the locking nut 504 is arranged at one end, extending out of the mounting hole 9, of the threaded rod 502, the tool changing robot drives the threaded rod to vertically move up and down by rotating the locking nut, and whether the translational pressing block presses the hob cutter shaft or not is achieved.
The movable connection of the threaded rod and the translation pressing block is realized through the following modes: namely, the translation pressing block 501 is provided with an unthreaded hole 505, the upper end of the threaded rod 502 is rotatably arranged in the unthreaded hole 505, the unthreaded hole is a stepped hole and is used for positioning the threaded rod, the threaded rod 502 is limited in the unthreaded hole 505 through a wear-resistant welding block 506 arranged in the unthreaded hole 505, the wear-resistant welding block is welded on the translation pressing block, or is fixedly connected with the translation pressing block through a bolt and is used for plugging the unthreaded hole 505 and limiting the movement of the threaded rod in the vertical direction.
The other structure is the same as embodiment 1.
The tool changing method of the translational push-pull hob cutter system is shown in fig. 3-5, and comprises the following steps: s1: disassembling the cutter: a tool changing hand of the tool changing robot clamps the locking nut 504, the locking nut 504 is rotated anticlockwise, the threaded rod 502 moves upwards to eject the translation pressing block 501 out of the mounting groove 8, and at the moment, the translation pressing block 501 is separated from the hob cutter shaft 6; continuing to rotate the locking nut 504 to make a way for taking out the hob 3, and then taking out the hob;
s2: tool installation: the new hob is placed into the hob box, the hob shaft 6 is clamped in the fixture block 4, then a tool changing hand of the tool changing robot clamps the lock nut 504, the lock nut 504 is rotated clockwise, the threaded rod 502 moves downwards to pull the translation pressing block 501 down to the installation groove 8 and contact with the hob shaft 6, and then the lock nut 504 continues to rotate until the translation pressing block 501 presses the hob shaft 6, so that the installation of the hob is completed.
The tool changing method of the translation push-pull hob cutter system comprises the following steps: firstly, disassembling a cutter: a tool changing hand of the tool changing robot clamps the locking nut 504, the locking nut 504 is rotated anticlockwise, the threaded rod 502 moves upwards to eject the translation pressing block 501 out of the mounting groove 8, and at the moment, the translation pressing block 501 is separated from the hob cutter shaft 6; then, a tool changing hand of the tool changing robot pushes the threaded rod 501 to move rightwards to the right side of the vertical waist hole 9b, a channel is made for taking out the hob 3, and then the hob is taken out;
secondly, cutter installation: put into the sword incasement with new hobbing cutter, and make hobbing cutter arbor 6 card establish in fixture block 4, the left side of vertical waist hole 9b is moved to the hand push threaded rod 501 of tool changing robot left side, make translation briquetting 501 be located directly over mounting groove 8, then lock nut 504 is blocked to tool changing robot's tool changing hand, clockwise rotation lock nut 504, threaded rod 502 downstream is with translation briquetting 501 drop-down to the mounting groove 8 in, and contact with hobbing cutter arbor 6, then continue to rotate lock nut 504 until translation briquetting 501 compresses tightly hobbing cutter arbor 6, accomplish the cutter installation.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. The utility model provides a translation push-and-pull hobbing cutter system, includes knife case (1) and hobbing cutter (3), its characterized in that: the inner walls of the two sides of the knife box (1) are provided with a fixture block (4) for clamping and fixing a hob cutter shaft (6) and a translational push-pull locking mechanism (5), and the fixture block (4) corresponds to the translational push-pull locking mechanism (5); a mounting groove (8) is formed in the knife box (1), a vertically arranged mounting hole (9) is formed in the bottom of the mounting groove (8), and the mounting hole (9) is matched with the translation push-pull locking mechanism (5); the translation push-pull locking mechanism (5) comprises a translation pressing block (501), the translation pressing block (501) is located in the installation groove (8), a threaded rod (502) is movably arranged at the lower part of the translation pressing block (501), the threaded rod (502) is matched with the installation hole (9), and a locking nut (504) is arranged at one end, extending out of the installation hole (9), of the threaded rod (502);
the translation pressing block (501) is provided with an unthreaded hole (505), the upper end of the threaded rod (502) is rotatably arranged in the unthreaded hole (505), and the threaded rod (502) is limited in the unthreaded hole (505) through a wear-resistant welding block (506) arranged in the unthreaded hole (505);
the mounting hole (9) is a threaded hole (9 a) matched with the threaded rod (502), the threaded rod (502) is in threaded fit with the threaded hole (9 a), and the bottom of the mounting groove (8) is provided with a vertically arranged guide hole (10); or the mounting hole (9) is a vertical waist hole (9 b), and the threaded rod (502) penetrates through the vertical waist hole (9 b) and can move left and right in the vertical waist hole (9 b).
2. The translational push-pull hob cutter system according to claim 1, characterized in that: the clamping block (4) is fixedly connected with the knife box (1) through a fastening bolt (7), and the translation push-pull locking mechanism (5) is movably connected with the knife box (1).
3. The translational push-pull hob cutter system according to claim 1, characterized in that: the lower part of the translation pressing block (501) is fixedly provided with a guide rod (503), and the guide rod (503) is matched with the guide hole (10).
4. A translational push-pull hob cutter system according to any one of claims 1 to 3, characterized in that: the two ends of the knife box (1) are provided with connecting plates (2) in a clamping manner, and the connecting plates (2) are detachably connected with the knife box (1).
5. A method of changing knives of a translational push-pull hob cutter system according to claim 1, characterized in that: the method comprises the following steps: firstly, disassembling a cutter: a tool changing hand of the tool changing robot clamps the locking nut (504), the locking nut (504) is rotated anticlockwise, the threaded rod (502) moves upwards to eject the translation pressing block (501) out of the mounting groove (8), and at the moment, the translation pressing block (501) is separated from the hob shaft (6); then, a cutter changing hand of the cutter changing robot pushes the threaded rod (501) to move rightwards to the right side of the vertical waist hole (9 b) to make a channel for taking out the hob (3), and then the hob is taken out;
secondly, cutter installation: put into the sword incasement with new hobbing cutter, and make hobbing cutter arbor (6) card establish in fixture block (4), the left side of vertical waist hole (9 b) is moved to left side to tool changing hand push threaded rod (501) of tool changing robot, make translation briquetting (501) be located directly over mounting groove (8), then tool changing hand of tool changing robot blocks lock nut (504), clockwise rotation lock nut (504), threaded rod (502) downstream is with translation briquetting (501) down pull to mounting groove (8) in, and contact with hobbing cutter arbor (6), then continue to rotate lock nut (504) until translation briquetting (501) compress tightly hobbing cutter arbor (6), accomplish the cutter installation.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911055356.4A CN110645008B (en) | 2019-10-31 | 2019-10-31 | Translational push-pull hob cutter system and cutter changing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911055356.4A CN110645008B (en) | 2019-10-31 | 2019-10-31 | Translational push-pull hob cutter system and cutter changing method thereof |
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| CN110645008A CN110645008A (en) | 2020-01-03 |
| CN110645008B true CN110645008B (en) | 2022-05-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101023464B1 (en) * | 2010-07-05 | 2011-03-24 | 박기운 | Propulsion device using self- assembly structure |
| CN108533614A (en) * | 2018-05-21 | 2018-09-14 | 盐城市三川轴承制造有限公司 | A kind of Production of bearing clamping device that can be adjusted |
| CN109458189B (en) * | 2018-12-29 | 2024-05-24 | 中铁工程装备集团有限公司 | Hobbing cutter quick assembly disassembly tool apron adopting scissor mechanism and application method thereof |
| CN109403996B (en) * | 2018-11-28 | 2024-05-17 | 中铁工程装备集团有限公司 | Novel hob blade holder capable of rapidly changing hob based on four-bar mechanism |
| CN109372531A (en) * | 2018-11-28 | 2019-02-22 | 中铁工程装备集团有限公司 | Based on worm and gear can rapid changing knife New Kind of Hob tool apron |
| CN109719257B (en) * | 2019-01-16 | 2020-06-16 | 冷银智造(深圳)有限公司 | Metal processing mould convenient to dismouting |
| CN109915157B (en) * | 2019-03-18 | 2023-12-19 | 天津大学 | Automatic cutter changing device for hob of shield machine |
| CN109915161A (en) * | 2019-04-28 | 2019-06-21 | 中铁工程装备集团有限公司 | A kind of New Kind of Hob tooling system being easily changed and its installation method |
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