CN213916156U - Hydraulic automatic opening reverse scraper tool for machining reverse side step hole - Google Patents
Hydraulic automatic opening reverse scraper tool for machining reverse side step hole Download PDFInfo
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- CN213916156U CN213916156U CN202022613480.2U CN202022613480U CN213916156U CN 213916156 U CN213916156 U CN 213916156U CN 202022613480 U CN202022613480 U CN 202022613480U CN 213916156 U CN213916156 U CN 213916156U
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Abstract
The utility model discloses a hydraulic automatic opening reverse scraping tool for processing a reverse step hole, which comprises a tool bar, a pull rod, a tool handle, a tool bit assembly, a pressure relief device and a transposition device, wherein the pull rod is inserted at the top end of an inner cavity of the tool bar; the tool bit assembly comprises a tool holder body, a blade, a shifting fork rotating pin and a tool holder rotating pin, and the transposition device comprises cooling liquid, a piston guide rod, a piston, a tool holder buffer spring, a locking nut, a piston spring, a piston limiting sleeve, a sealing ring and a piston limiting block. The utility model is simple in operation, realized that the tool bit is in the closure state when the clearing hole, behind the tool bit clearing hole, the lathe opens the coolant liquid, and the tool bit is automatic to be opened, then just can normally scrape hole and chamfer, and processing is accomplished the back, and the pore wall is touched gently to the pressure release push rod above the cutter, releases the coolant liquid in the cavity, and the tool bit is automatic closed, and the cutter withdraws from the bottom hole, has just accomplished the processing task of reverse side step hole or chamfer.
Description
Technical Field
The utility model discloses machining relates to the technical field, specifically is an automatic anti-cutter of scraping of opening of fluid pressure type for processing reverse side step hole.
Background
At present, for reverse boring of holes, a mode of separating a scraper rod from a scraper head is mostly adopted, when the reverse boring machine is used, the scraper rod penetrates through a bottom hole of a machined workpiece, then a cutter head and a blade are installed to machine a counter bore on the reverse side, the cutter head is taken down after machining is finished, and the scraper rod retreats from the bottom hole; the main drawbacks of the current solutions are:
1. the machining efficiency is low, the cutter head needs to be clamped and disassembled once when each hole is machined, and the auxiliary working time is too long;
2. some workpieces are high in height, and the clamping and dismounting tool bit needs to be operated by a tower crane or a crane, so that the risk of high-altitude operation is caused;
3. some machining positions are in a narrow space, and the cutter is not easy to replace.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an automatic anti-cutter of scraping of opening of fluid pressure type for processing reverse side step hole to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a hydraulic automatic opening reverse scraping tool for machining a reverse step hole comprises a tool bar, a pull rod, a tool shank, a tool bit assembly, a pressure relief device and a transposition device, wherein the pull rod is inserted at the top end of an inner cavity of the tool bar; the tool bit assembly comprises a tool holder body, a blade, a shifting fork rotating pin and a tool holder rotating pin, the shifting fork rotating pin is arranged on the left side of the inner wall of the pull rod, the tool holder body is connected with the shifting fork rotating pin through the shifting fork, the tool holder body is connected with the tool bar through the tool holder rotating pin, and the blade is connected to the bottom end of the right side of the tool holder body through a screw; the tool holder is positioned on the right side of the tool bar and connected through a locking bolt, a sealing gasket is arranged between the tool bar and the tool holder, the transposition device is positioned in a cavity formed between the tool bar and the tool holder, the transposition device comprises cooling liquid, a piston guide rod, a piston, a tool holder buffer spring, a locking nut, a piston spring, a piston limiting sleeve, a sealing ring and a piston limiting block, the piston is positioned in the center of the cavity, the cooling liquid is filled in the left side of the piston, the piston guide rod is inserted in the center of the inner cavity of the tool holder, the tool holder buffer spring is sleeved at the right end of the pull rod and fixed through the locking nut, the tool holder buffer spring is positioned on the right side of the piston, the piston spring is positioned on the right side of the cavity, the piston limiting sleeve is sleeved on the outer wall of the piston guide rod and corresponds to the position of the tool holder buffer spring, and the sealing ring is positioned between the piston and the tool holder, the piston limiting block is positioned on the outer wall of the right side of the cutter bar.
Preferably, pressure relief device is located the inner wall bottom right side of cutter arbor, pressure relief device includes pressure release push rod, pressure release pole, pressure release spring and flat end holding screw, pressure release push rod, pressure release pole, pressure release spring and flat end holding screw are arranged from a left side to the right side in proper order, pressure release pole screw connection is on the right side of pressure release push rod, pressure release spring's one end joint is at the right-hand member of pressure release pole, and pressure release spring's the other end passes through flat end holding screw and is connected with the cutter arbor.
Preferably, the top left side of cutter arbor is provided with the guide block, the guide block is made for the nylon material.
Preferably, an exhaust screw is arranged at the center of the outer wall of the cutter handle, and a dust screen is arranged in an inner cavity of the exhaust screw.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model is simple in operation, the tool bit has been realized being in the closure state when the clearing hole, behind the tool bit clearing hole, the lathe opens the coolant liquid, the tool bit is automatic to be opened, then just can normally scrape hole and chamfer, processing is accomplished the back, the pressure release push rod above the cutter touches the pore wall gently, release the coolant liquid in the cavity, the tool bit is automatic closed, the cutter withdraws from the bottom hole, the task of processing of reverse side step hole or chamfer has just been accomplished, dress tool bit when this cutter has solved every hole of processing, the loaded down with trivial details work of dismantling the tool bit, a large amount of auxiliary time has been practiced thrift, high machining efficiency, the operational risk because the tool changing brought has also been reduced, utilize lathe self cooling simultaneously, make resource make full use of.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a cross-sectional view of the conversion device with the tool bit in the open position of the present invention;
FIG. 3 is a cross-sectional view of the pressure relief device when the tool bit of the present invention is in the open state;
fig. 4 is a cross-sectional view of the conversion device when the tool bit of the present invention is in the closed state;
fig. 5 is a cross-sectional view of the pressure relief device when the cutter head is in a closed state.
In the figure: 1. the cutter clamping device comprises a cutter clamp body, 2, a blade, 3, a shifting fork, 4, a shifting fork rotating pin, 5, a cutter rod, 6, a pull rod, 7, cooling liquid, 8, a piston guide rod, 9, a piston, 10, a cutter clamp buffering spring, 11, a locking nut, 12, a piston spring, 13, a cutter handle, 14, a piston limiting sleeve, 15, a sealing ring, 16, a piston limiting block, 17, a sealing gasket, 18, a locking bolt, 19, a pressure relief push rod, 20, a pressure relief rod, 21, a pressure relief spring, 22, a flat end fastening screw, 23, an exhaust screw, 24, a dust screen, 25, a cutter clamp rotating pin, 26, a guide block, 27, a cutter head assembly, 28, a pressure relief device, 29 and a transposition device.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a hydraulic automatic opening reverse scraping tool for machining a reverse step hole comprises a tool bar 5, a pull rod 6, a tool shank 13, a tool bit assembly 27, a pressure relief device 28 and a transposition device 29, wherein the pull rod 6 is inserted at the top end of an inner cavity of the tool bar 5; the tool bit assembly 27 comprises a tool holder body 1, a blade 2, a shifting fork 3, a shifting fork rotating pin 4 and a tool holder rotating pin 25, the shifting fork rotating pin 4 is installed on the left side of the inner wall of the pull rod 6, the tool holder body 1 is connected with the shifting fork rotating pin 4 through the shifting fork 3, the tool holder body 1 is connected with a tool bar 5 through the tool holder rotating pin 25, and the blade 2 is connected to the bottom end of the right side of the tool holder body 1 through a screw; the tool holder 13 is positioned on the right side of the tool bar 5 and connected through a locking bolt 18, a sealing gasket 17 is arranged between the tool bar 5 and the tool holder 13, a transposition device 29 is positioned in a cavity formed between the tool bar 5 and the tool holder 13, the transposition device 29 comprises a cooling liquid 7, a piston guide rod 8, a piston 9, a tool holder buffer spring 10, a locking nut 11, a piston spring 12, a piston limit sleeve 14, a sealing ring 15 and a piston limit block 16, the piston 9 is positioned in the center of the cavity, the cooling liquid 7 is filled in the left side of the piston 9, the piston guide rod 8 is inserted in the center of the inner cavity of the tool holder 13, the tool holder buffer spring 10 is sleeved at the right end of the pull rod 6 and fixed through the locking nut 11, the tool holder buffer spring 10 is positioned on the right side of the piston 9, the piston spring 12 is positioned on the right side of the cavity, the piston limit sleeve 14 is sleeved on the outer wall of the piston guide rod 8 and corresponds to the position of the tool holder buffer spring 10, the sealing ring 15 is positioned between the piston 9 and the tool shank 13, and the piston limiting block 16 is positioned on the right outer wall of the tool bar 5.
Preferably, the pressure relief device 28 is located on the right side of the bottom end of the inner wall of the cutter bar 5, the pressure relief device 28 includes a pressure relief push rod 19, a pressure relief rod 20, a pressure relief spring 21 and a flat end set screw 22, the pressure relief push rod 19, the pressure relief rod 20, the pressure relief spring 21 and the flat end set screw 22 are sequentially arranged from left to right, the pressure relief rod 20 is screwed on the right side of the pressure relief push rod 19, one end of the pressure relief spring 21 is clamped at the right end of the pressure relief rod 20, and the other end of the pressure relief spring 21 is connected with the cutter bar 5 through the flat end set screw 22.
As preferred scheme, further, the top left side of cutter arbor 5 is provided with guide block 26, and guide block 26 is made for the nylon material, because the cutter head part is the single face atress, receives the effect of cutting force easily in the course of working and produces the vibration, and nylon guide block just plays the key role this moment, and nylon guide block has very strong elasticity, can absorb the vibration that the cutter head transmitted, has fine damping effect, and the bore hole in-process can also play support and guide effect.
Preferably, an exhaust screw 23 is disposed at the center of the outer wall of the tool holder 13, and a dust screen 24 is disposed in the inner cavity of the exhaust screw 23.
The detailed connection means is a technique known in the art, and the following mainly describes the working principle and process, and the specific operation is as follows.
When hole scraping and chamfering are carried out, the cutter head component 27 is in a closed state when the cutter bar 5 passes through the hole, the machine tool opens the cooling liquid 7 after the cutter head component 27 passes through the hole, the piston 9 moves rightwards under the action of the cooling liquid 7 to extrude the piston spring 12, meanwhile, the piston 9 drives the pull rod 6 to move rightwards, the pull rod 6 enables the cutter head component 27 to open through the shifting fork rotating pin 4 and the shifting fork 3, the blade 2 is normally operated to scrape the hole and chamfer after opening, the pressure relief push rod 19 lightly touches the hole wall after processing is finished, the cooling liquid 7 in the cavity is released, the piston 9 recovers to an initial position under the elastic reaction force of the piston spring 12, the cutter head component 27 is automatically closed, the cutter exits from a bottom hole, the processing task of a step back hole or chamfer is finished, the tedious work of installing and disassembling the cutter head during processing of each hole is solved, and a large amount of auxiliary time is saved, the machining efficiency is high, the operation risk caused by tool changing is reduced, and meanwhile, the machine tool is cooled by the machine tool, so that resources are fully utilized.
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 (4)
1. The utility model provides a hydraulic type is automatic opens anti-cutter of scraping for processing reverse side step hole which characterized in that: the cutter comprises a cutter bar (5), a pull rod (6), a cutter handle (13), a cutter head assembly (27), a pressure relief device (28) and a transposition device (29), wherein the pull rod (6) is inserted at the top end of an inner cavity of the cutter bar (5);
the tool bit assembly (27) comprises a tool holder body (1), a blade (2), a shifting fork (3), a shifting fork rotating pin (4) and a tool holder rotating pin (25), the shifting fork rotating pin (4) is installed on the left side of the inner wall of the pull rod (6), the tool holder body (1) is connected with the shifting fork rotating pin (4) through the shifting fork (3), the tool holder body (1) is connected with a tool bar (5) through the tool holder rotating pin (25), and the blade (2) is in screwed connection with the bottom end of the right side of the tool holder body (1);
the tool holder (13) is located on the right side of the tool bar (5) and connected through a locking bolt (18), a sealing gasket (17) is arranged between the tool bar (5) and the tool holder (13), the transposition device (29) is located in a cavity formed between the tool bar (5) and the tool holder (13), the transposition device (29) comprises cooling liquid (7), a piston guide rod (8), a piston (9), a tool holder buffer spring (10), a locking nut (11), a piston spring (12), a piston limiting sleeve (14), a sealing ring (15) and a piston limiting block (16), the piston (9) is located in the center of the cavity, the cooling liquid (7) is filled in the left side of the piston (9), the piston guide rod (8) is inserted in the center of the inner cavity of the tool holder (13), the tool holder buffer spring (10) is sleeved at the right end of the pull rod (6) and fixed through the locking nut (11), and cutter holder buffer spring (10) are located on the right side of piston (9), piston spring (12) are located on the right side of die cavity, piston stop collar (14) cup joints the outer wall of piston guide bar (8), and correspond with cutter holder buffer spring (10) position, sealing washer (15) are located between piston (9) and handle of a knife (13), piston stopper (16) are located the right side outer wall of cutter arbor (5).
2. The hydraulic automatic opening reverse scraping tool for machining the reverse stepped hole as claimed in claim 1, wherein: pressure relief device (28) are located the inner wall bottom right side of cutter arbor (5), pressure relief device (28) are including pressure release push rod (19), pressure release pole (20), pressure release spring (21) and flat end holding screw (22), pressure release push rod (19), pressure release pole (20), pressure release spring (21) and flat end holding screw (22) are arranged from a left side to the right side in proper order, pressure release pole (20) screwed connection is on the right side of pressure release push rod (19), the one end joint of pressure release spring (21) is at the right-hand member of pressure release pole (20), and the other end of pressure release spring (21) passes through flat end holding screw (22) and is connected with cutter arbor (5).
3. The hydraulic automatic opening reverse scraping tool for machining the reverse stepped hole as claimed in claim 1, wherein: the top left side of cutter arbor (5) is provided with guide block (26), guide block (26) are made for the nylon material.
4. The hydraulic automatic opening reverse scraping tool for machining the reverse stepped hole as claimed in claim 1, wherein: an exhaust screw (23) is arranged at the center of the outer wall of the cutter handle (13), and a dust screen (24) is arranged in the inner cavity of the exhaust screw (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022613480.2U CN213916156U (en) | 2020-11-13 | 2020-11-13 | Hydraulic automatic opening reverse scraper tool for machining reverse side step hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022613480.2U CN213916156U (en) | 2020-11-13 | 2020-11-13 | Hydraulic automatic opening reverse scraper tool for machining reverse side step hole |
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| Publication Number | Publication Date |
|---|---|
| CN213916156U true CN213916156U (en) | 2021-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022613480.2U Active CN213916156U (en) | 2020-11-13 | 2020-11-13 | Hydraulic automatic opening reverse scraper tool for machining reverse side step hole |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114178629A (en) * | 2021-12-16 | 2022-03-15 | 铣立(上海)切削技术有限公司 | Mechanical automatic switch reverse scraping tool for machining reverse countersink or counter bore |
| CN114226818A (en) * | 2022-01-19 | 2022-03-25 | 航天精工股份有限公司 | Reverse hole milling tool for processing blind end step hole |
| CN114289764A (en) * | 2022-01-19 | 2022-04-08 | 航天精工股份有限公司 | Combined type cutter for processing blind end step hole |
| CN115255449A (en) * | 2022-09-27 | 2022-11-01 | 南通诚泰机械制造有限公司 | Reaming device for drilling of hydraulic cylinder cover |
-
2020
- 2020-11-13 CN CN202022613480.2U patent/CN213916156U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114178629A (en) * | 2021-12-16 | 2022-03-15 | 铣立(上海)切削技术有限公司 | Mechanical automatic switch reverse scraping tool for machining reverse countersink or counter bore |
| CN114226818A (en) * | 2022-01-19 | 2022-03-25 | 航天精工股份有限公司 | Reverse hole milling tool for processing blind end step hole |
| CN114289764A (en) * | 2022-01-19 | 2022-04-08 | 航天精工股份有限公司 | Combined type cutter for processing blind end step hole |
| CN115255449A (en) * | 2022-09-27 | 2022-11-01 | 南通诚泰机械制造有限公司 | Reaming device for drilling of hydraulic cylinder cover |
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