CN112059223A - Hydraulic chuck of horizontal numerical control machine tool - Google Patents
Hydraulic chuck of horizontal numerical control machine tool Download PDFInfo
- Publication number
- CN112059223A CN112059223A CN202010921603.0A CN202010921603A CN112059223A CN 112059223 A CN112059223 A CN 112059223A CN 202010921603 A CN202010921603 A CN 202010921603A CN 112059223 A CN112059223 A CN 112059223A
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- CN
- China
- Prior art keywords
- hydraulic chuck
- clamping jaw
- transmission
- transmission clamping
- machine tool
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/001—Protection against entering of chips or dust
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/24—Chucks characterised by features relating primarily to remote control of the gripping means
- B23B31/30—Chucks characterised by features relating primarily to remote control of the gripping means using fluid-pressure means in the chuck
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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
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
- B23Q11/005—Devices for removing chips by blowing
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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
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/002—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring the holding action of work or tool holders
- B23Q17/005—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring the holding action of work or tool holders by measuring a force, a pressure or a deformation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B9/00—Presses specially adapted for particular purposes
- B30B9/32—Presses specially adapted for particular purposes for consolidating scrap metal or for compacting used cars
- B30B9/327—Presses specially adapted for particular purposes for consolidating scrap metal or for compacting used cars for briquetting scrap metal
Abstract
The invention relates to the technical field of hydraulic chucks and discloses a hydraulic chuck of a horizontal numerical control machine tool, which comprises a hydraulic chuck, wherein a transmission shaft piece is fixedly arranged on one side of the hydraulic chuck, three transmission clamping jaws are fixedly arranged on the other side of the hydraulic chuck, a supporting sleeve is fixedly sleeved on the surface of one side of the hydraulic chuck, three shielding protection mechanisms are fixedly arranged on the side surface of one side of the supporting sleeve, and the surfaces of one sides of the three shielding protection mechanisms are respectively and movably connected with the surfaces of the other ends of the three transmission clamping jaws. According to the invention, the shielding protection mechanism is used for shielding and protecting the connection interval between the transmission clamping jaw and the hydraulic chuck, so that the problems of corrosion of subsequent connecting pieces, transmission jamming and the like caused by certain probability of entering a connection gap of some scrap irons and cutting fluid in the machining process are avoided.
Description
Technical Field
The invention relates to the technical field of hydraulic chucks, in particular to a hydraulic chuck of a horizontal numerical control machine tool.
Background
In the machine manufacturing industry, a numerical control lathe is widely used, a hydraulic chuck is a main clamping tool for clamping a workpiece and rotating the workpiece by the numerical control lathe, the workpiece is stabilized and is enabled to move relative to a cutter to complete metal cutting, the hydraulic chuck can be divided into two structures, one structure is that a front-mounted hydraulic chuck, namely the chuck and a rotary cylinder are integrated, the installation is simple and convenient, the price is economical and practical, the other structure is that a rear-pull type hydraulic chuck, namely the chuck is installed at the front end of a lathe spindle, the rotary hydraulic cylinder is installed at the rear end of the lathe spindle, and the installation water-proof and cutting-proof capacity is very good.
But the hydraulic chuck still has the connective gap between hydraulic chuck and the clamping jaw in the actual processing use of current to be protected and shelters from the structure, and some iron fillings and cutting fluid in the course of working have certain probability to enter into the connective gap, and then cause the problem of follow-up connecting piece corruption, transmission jam.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a hydraulic chuck of a horizontal numerical control machine tool, which solves the problems that the connection gap between the hydraulic chuck and a clamping jaw provided by the background art is not provided with a protective shielding structure, and some scrap irons and cutting fluid in the processing process have certain probability to enter the connection gap, so that the subsequent connecting piece is corroded and the transmission is jammed.
The invention provides the following technical scheme: the utility model provides a hydraulic chuck of horizontal digit control machine tool, includes hydraulic chuck, one side fixed mounting of hydraulic chuck has the transmission shaft spare, hydraulic chuck's opposite side fixed mounting has three transmission clamping jaw, the fixed cover in surface of hydraulic chuck one side has connect and has supported the cover, the side fixed mounting who supports cover one side has the three protection machanism that shields, and is three the surface that shields protection machanism one side is respectively with the surface swing joint of the three transmission clamping jaw other end.
Carefully, it is three the equal activity in outside of transmission clamping jaw one end has cup jointed supplementary piece, the inside activity of supplementary piece has cup jointed the set screw, the other end threaded connection of set screw is in the inside of transmission clamping jaw, and is three transmission clamping jaw side fixedly connected with fixed cover in the transmission clamping jaw, the inside of fixed cover is fixed and has been cup jointed the miniature pressure sensor of probe-type, the one end of the miniature pressure sensor of probe-type is provided with the top briquetting, top briquetting fixed connection is on the side of hydraulic chuck opposite side, the miniature pressure sensor electric connection of probe-type has first controller, first controller fixed mounting is on the side of supporting cover one side.
Carefully, the side of auxiliary block one side has been seted up and has been stepped down the groove, and the fixed cover in inside of auxiliary block opposite side has been connect compression spring, compression spring's other end swing joint is on the surface of transmission clamping jaw one end.
Carefully, the inside of supporting the cover is fixed to be cup jointed the installation screw, and supports the inside installation screw one end threaded connection of cover in the inside of hydraulic chuck one side.
Carefully, the inside of shielding protection mechanism is including supporting the cover, and supports one side fixed connection of cover on the side of supporting cover one side, and the side swing joint of supporting the cover opposite side has the fly leaf, the inner wall fixedly connected with connecting rod of fly leaf one side, the one end activity of connecting rod is cup jointed in the inside of supporting the cover, and the surperficial activity of connecting rod has cup jointed buffer spring, buffer spring's both ends difference fixed connection is at the inner wall of fly leaf one side and the surface of supporting the cover, the terminal surface fixedly connected with anticreep piece of connecting rod one end, the surperficial swing joint of fly leaf one side and transmission clamping jaw one end.
And carefully selecting, wherein the center line point of the jacking block and the probe type micro pressure sensor is on the same straight line, and the contact distance value between the jacking block and the probe type micro pressure sensor is equal to the stroke value of the transmission clamping jaw on the hydraulic chuck.
Preferably, the first controller comprises a microprocessor, a portable power supply and a buzzer inside, and the surface of the first controller is not in contact with the surface of the hydraulic chuck.
Carefully, the inside nut that is included of set screw, and the inside at supplementary piece is cup jointed in the activity completely of one end of set screw fixedly connected with nut.
Carefully, still include the fixed station, the fixed station cover is established on the transmission shaft spare and with the transmission shaft spare rotates to be connected, be provided with sweeps collection device on the fixed station, sweeps collection device includes:
the collecting box is arranged on the right side of the fixed table and covers the transmission shaft piece and the hydraulic chuck in the collecting box;
a first gear disposed on the drive shaft, the first gear being located between the hydraulic chuck and the fixed platen;
the second gear is arranged above the first gear through a first rotating shaft, the first gear is meshed with the second gear, one end of the first rotating shaft is rotatably connected with the right side wall of the fixed table, and the other end of the first rotating shaft is provided with a first bevel gear;
the second rotating shaft is arranged on the right side of the first rotating shaft and is perpendicular to the first rotating shaft, one end of the second rotating shaft is rotatably connected with the inner wall of the collecting box through a bearing, the other end of the second rotating shaft is provided with a disc, a second bevel gear is arranged between the disc and the bearing and meshed with the first bevel gear;
the supporting plate is arranged below the second rotating shaft, two ends of the supporting plate are fixedly connected with the inner walls of two sides of the collecting box respectively, and a vertical downward through hole is formed in the supporting plate;
the extrusion box is arranged below the supporting plate, and the upper end of the extrusion box is communicated with the bottom wall of the collection box through an opening;
the fan is arranged on the inner wall of the bottom of the collecting box at one side close to the fixed table, and the air blowing side of the fan faces the direction of the extrusion box;
the disc pressing device comprises a first connecting rod, one end of the first connecting rod is hinged to the periphery of the disc, the other end of the first connecting rod is hinged to one end of a second connecting rod, the other end of the second connecting rod penetrates through the through hole and extends to the position below the supporting plate and is provided with a pressing plate, the pressing plate is located right above the extrusion box, a second spring is sleeved on the second connecting rod, one end of the second spring is fixedly connected with the lower surface of the supporting plate, and the other end of the second spring is fixedly connected with the upper surface of the pressing plate.
Carefully selecting, further comprising: press from both sides tight early warning device, press from both sides tight early warning device and include:
the pressure sensor is arranged at one end, facing the center of the hydraulic chuck, of the transmission clamping jaw and is used for measuring the actual clamping force of the transmission clamping jaw;
the alarm is arranged on the hydraulic chuck;
the second controller is arranged on the surface of the hydraulic chuck and is electrically connected with the pressure sensor and the alarm respectively;
the second controller controls the alarm to work based on the pressure sensor, and the method comprises the following steps:
step 1: calculating the maximum tensile strength of the driving jaw by equation (1):
wherein σZIs the maximum tensile strength, σ, of the driving jaw1Mu is the yield limit of the transmission clamping jaw, mu is the safety coefficient of the transmission clamping jaw, the safety coefficient is the ratio of failure stress and design stress of the material used by the transmission clamping jaw, mu is generally 1.3-1.7, pi is the circumferential rate, pi is 3.14, r is1Actual radius of the workpiece gripped by the driving jaw, SYPresetting a maximum contact area between the transmission clamping jaw and a workpiece;
step 2: based on step 1, calculating the maximum clamping force of the transmission clamping jaw through a formula (2):
wherein, FZMaximum clamping force of the driving clamping jaw, h1Thickness of said driving jaw, FCMaximum cutting force of tool for horizontal numerical control machine tool machining, f1For the workpiece axis between the driving clamping jaw and the workpieceCoefficient of friction in the direction, f2The coefficient of friction between the transmission clamping jaw and the workpiece in the circumferential direction of the workpiece is defined;
and step 3: calculating the difference between the maximum clamping force of the transmission clamping jaw and the actual clamping force of the transmission clamping jaw according to the pressure sensor by a formula (3):
QC＝FZ-FS(3)
wherein Q isCIs the difference between the maximum clamping force of the driving clamping jaw and the actual clamping force of the driving clamping jaw, FSAn actual clamping force of the driving jaw measured for the pressure sensor;
and 4, step 4: when Q isCWhen the value is more than 0, the alarm does not give an alarm, and when Q is greater than 0CAnd when the current is less than or equal to 0, the second controller controls the alarm to give an alarm.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the connecting rod and the buffer spring in the shielding protection mechanism are used as the reciprocating movement reset mechanism, so that the movable plate can automatically move and yield on the surface of the support sleeve after being extruded by the transmission clamping jaw, the structure conflict is avoided, the automatic reset is carried out after the transmission clamping jaw is clamped, the connection interval between the transmission clamping jaw and the hydraulic chuck is shielded and protected, and the problems that some scrap irons and cutting fluid in the machining process enter a connection gap at a certain probability, and further the subsequent connecting piece is corroded, the transmission is jammed and the like are avoided;
2. according to the invention, the auxiliary block and the positioning screw form a portable replacing structure, when the special workpiece is clamped by the transmission clamping jaw and the abdication space is needed, the surface of the auxiliary block can be directly processed, so that the transmission clamping jaw is prevented from being directly processed, and when the processed part is subsequently replaced, the contact area of the transmission clamping jaw can be maintained and the stability of clamping can be ensured only by disassembling the positioning screw and replacing the auxiliary block;
3. according to the invention, the probe type micro pressure sensor moves synchronously with one of the transmission clamping jaws in the device, so that the transmission clamping jaw is contacted and extruded with a matched sleeved pressing block, a pressure signal is converted into an electric signal and transmitted to the micro processor in the first controller, if the transmission clamping jaw is decompressed due to the fault of the hydraulic chuck, the micro processor in the first controller cannot obtain a pressure value signal for realizing the setting, and then the buzzer in the first controller is controlled to give an alarm to prompt a worker to stop processing in time, so that the processing accident is avoided, the potential safety hazard is eliminated, and the safety of the device is improved;
4. according to the invention, the scrap collecting device is arranged, the collecting box can be used for preventing the scrap from flying out of the numerical control machine tool to cause a person injury accident, the scrap is blown into the extrusion box through the fan for collection, the scrap is convenient to clean, the pressing plate is used for continuously extruding the scrap in the extrusion box, the scrap is more compact, more scrap can be stored in the extrusion box, and the scrap is extruded into blocks to form a whole body, so that the cleaning is more convenient;
5. according to the invention, the clamping early warning device is arranged, the maximum clamping force of the transmission clamping jaw can be accurately judged, the alarm prompts a worker to adjust the clamping force of the transmission clamping jaw, the surface of a workpiece cannot be clamped and damaged due to the overlarge clamping force of the transmission clamping jaw, and meanwhile, under the clamping force of the transmission clamping jaw, the tensile strength borne by the transmission clamping jaw is lower, so that the service life of the transmission clamping jaw can be prolonged, and the durability of the transmission clamping jaw is improved.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a perspective view of a structural auxiliary block according to the present invention;
FIG. 3 is a perspective view of the structural shielding protection mechanism of the present invention;
FIG. 4 is an enlarged view of the point A in FIG. 1;
FIG. 5 is a schematic diagram of the operation of a first controller according to the present invention;
FIG. 6 is a front view of the scrap collecting apparatus of the present invention;
FIG. 7 is a right side view of the scrap collecting apparatus of the present invention.
In the figure: 1. a hydraulic chuck; 2. a drive shaft member; 3. a transmission clamping jaw; 4. an auxiliary block; 5. a set screw; 6. a support sleeve; 7. a shielding protection mechanism; 71. a support sleeve; 72. a movable plate; 73. a connecting rod; 74. a buffer spring; 75. an anti-drop block; 8. fixing a sleeve; 9. a probe-type micro pressure sensor; 10. a first controller; 11. pressing the block; 12. a yielding groove; 13. a compression spring; 14. a fixed table; 15. a collection box; 16. a first gear; 17. a second gear; 18. a first rotating shaft; 19. a first bevel gear; 20. a second rotating shaft; 21. a bearing; 22. a disc; 23. a second bevel gear; 24. a support plate; 25. a through hole; 26. extruding the box; 27. a fan; 28. a first link; 29. a second link; 30. pressing a plate; 31. a second spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, a hydraulic chuck of a horizontal numerical control machine comprises a hydraulic chuck 1, a transmission shaft 2 is fixedly installed on one side of the hydraulic chuck 1, three transmission clamping jaws 3 are fixedly installed on the other side of the hydraulic chuck 1, a supporting sleeve 6 is fixedly sleeved on the surface of one side of the hydraulic chuck 1, three shielding protection mechanisms 7 are fixedly installed on the side surface of one side of the supporting sleeve 6, and the surfaces of one sides of the three shielding protection mechanisms 7 are respectively movably connected with the surfaces of the other ends of the three transmission clamping jaws 3.
Wherein, supplementary piece 4 has all been cup jointed in the equal activity in the outside of 3 one ends of three transmission clamping jaw, set screw 5 has been cup jointed in the inside activity of supplementary piece 4, the other end threaded connection of set screw 5 is in the inside of transmission clamping jaw 3, 3 side fixedly connected with fixed covers 8 of transmission clamping jaw in three transmission clamping jaw 3, the inside fixed probe-type miniature pressure sensor 9 that has cup jointed of fixed cover 8, the one end of probe-type miniature pressure sensor 9 is provided with top pressure piece 11, 11 fixed connection of top pressure piece is on the side of 1 opposite side of hydraulic chuck, 9 electric connection of probe-type miniature pressure sensor has first controller 10, first controller 10 fixed mounting is on the side of supporting cover 6 one side.
Wherein, the side of auxiliary block 4 one side has been seted up and has been stepped down groove 12, and the fixed cover in inside of auxiliary block 4 opposite side has connect compression spring 13, compression spring 13's other end swing joint is on the surface of 3 one ends of transmission clamping jaw, constitute portable change structure through auxiliary block 4 and set screw 5, when the special work piece of 3 clamping of transmission clamping jaw needs the space of stepping down, can directly process on the surface of auxiliary block 4, avoid direct processing transmission clamping jaw 3 from this, when follow-up change processing part, only need dismantle set screw 5 and change auxiliary block 4, alright maintain the area of contact of transmission clamping jaw 3 and guarantee the stability of clamping.
Wherein, support the inside fixed mounting screw that has cup jointed of cover 6, and support the inside mounting screw one end threaded connection of cover 6 inside in hydraulic chuck 1 one side, the mounting screw is for supporting the stable suit of cover 6 and providing mounting structure on the surface of hydraulic chuck 1 one side to the flexibility of the follow-up dismantlement separation of both.
Wherein, the shielding protection mechanism 7 includes a support sleeve 71, one side of the support sleeve 71 is fixedly connected to the side of one side of the support sleeve 6, the side of the other side of the support sleeve 71 is movably connected with a movable plate 72, the inner wall of one side of the movable plate 72 is fixedly connected with a connecting rod 73, one end of the connecting rod 73 is movably sleeved inside the support sleeve 71, the surface of the connecting rod 73 is movably sleeved with a buffer spring 74, two ends of the buffer spring 74 are respectively and fixedly connected to the inner wall of one side of the movable plate 72 and the surface of the support sleeve 71, the end surface of one end of the connecting rod 73 is fixedly connected with an anti-falling block 75, the surface of one side of the movable plate 72 is movably connected with the surface of one end of the transmission clamping jaw 3, the connecting rod 73 and the buffer spring 74 inside the shielding protection mechanism 7 are used as a reciprocating movement reset mechanism, so that the, avoid the structure conflict, wait for transmission clamping jaw 3 to carry out automatic re-setting again after the clamping, shelter from the protection to being connected the intermittent type between transmission clamping jaw 3 and the hydraulic chuck 1, avoid some iron fillings and the cutting fluid in the course of working to have certain probability to enter into the joint clearance, and then cause subsequent connecting piece corruption, transmission puckery scheduling problem.
The center line point of the jacking block 11 and the probe-type micro pressure sensor 9 is on the same straight line, the contact distance value between the jacking block 11 and the probe-type micro pressure sensor 9 is equal to the stroke value of the transmission clamping jaw 3 on the hydraulic chuck 1, the position design and the distance limitation of the jacking block 11 and the probe-type micro pressure sensor 9 are set according to the actual clamping condition of the transmission clamping jaw 3 under the action of the hydraulic chuck 1, and the reliability of the device is fully ensured.
Wherein, the inside of first controller 10 is including microprocessor, portable power source, bee calling organ, and the surface of first controller 10 is contactless with the surface of hydraulic chuck 1, move in step with one of them transmission clamping jaw 3 of device inside through probe-type miniature pressure sensor 9, and then contact extrusion matches the roof pressure piece 11 that the cover was designed, and change pressure signal into in the miniature processor of first controller 10 of signal of telecommunication transmission, if hydraulic chuck 1 trouble leads to transmission clamping jaw 3 decompression, the miniature processor of first controller 10 inside will not obtain the pressure value signal that realizes the settlement, then can control the bee calling organ of first controller 10 inside and report to the police, the suggestion staff in time stops processing, avoid appearing the processing accident, eliminate the potential safety hazard, the security of device is improved.
Wherein, set screw 5 is inside including the nut, and the complete activity of the one end of 5 fixedly connected with nuts of set screw cup joints in the inside of supplementary piece 4, and set screw 5 full activity cup joints in the inside of supplementary piece 4, and firstly maintenance device's pleasing to the eye, secondly bad problems such as structural disturbance appear.
The working principle is as follows: when the device is used, in the process of processing a special workpiece, if a abdicating structure is needed for clamping the special workpiece by the transmission clamping jaw 3, cutting processing of an abdicating space can be directly carried out on the surface of the auxiliary block 4, when the processed part is subsequently replaced, normal operation can be continued only by disassembling the positioning screw 5 and replacing the complete auxiliary block 4, in the processing process, the connecting rod 73 and the buffer spring 74 in the shielding protection mechanism 7 are used as a reciprocating movement reset mechanism, so that the movable plate 72 can automatically move and abdicating on the surface of the support sleeve 71 after being extruded by the transmission clamping jaw 3, structure conflict is avoided, the transmission clamping jaw 3 automatically resets after being clamped, the connection interval between the transmission clamping jaw 3 and the hydraulic chuck 1 is shielded, the probe type micro pressure sensor 9 synchronously moves with one transmission clamping jaw 3 in the device, and further contacts and extrudes the jacking block 11 designed by the matched sleeve, and the pressure signal is converted into an electric signal and transmitted to a microprocessor in the first controller 10, if the transmission clamping jaw 3 is out of pressure due to the fault of the hydraulic chuck 1, the microprocessor in the first controller 10 cannot obtain a preset pressure value signal, and a buzzer in the first controller 10 can alarm to promote a worker to stop processing in time.
In one embodiment, as shown in fig. 6 and 7, the device further includes a fixing table 14, the fixing table 14 is sleeved on the transmission shaft 2 and is rotatably connected to the transmission shaft 2, and a waste collecting device is disposed on the fixing table 14, and the waste collecting device includes:
the collecting box 15 is arranged on the right side of the fixed table 14, and the collecting box 15 covers the transmission shaft part 2 and the hydraulic chuck 1 in the collecting box 15;
a first gear 16, the first gear 16 being disposed on the transmission shaft 2, the first gear 16 being located between the hydraulic chuck 1 and the fixed table 14;
a second gear 17, wherein the second gear 17 is arranged above the first gear 16 through a first rotating shaft 18, the first gear 16 is meshed with the second gear 17, one end of the first rotating shaft 18 is rotatably connected with the right side wall of the fixed table 14, and the other end of the first rotating shaft 18 is provided with a first bevel gear 19;
the second rotating shaft 20 is arranged on the right side of the first rotating shaft 18, the second rotating shaft 20 is perpendicular to the first rotating shaft 18, one end of the second rotating shaft 20 is rotatably connected with the inner wall of the collecting box 15 through a bearing 21, a disc 22 is arranged at the other end of the second rotating shaft 20, a second bevel gear 23 is arranged between the disc 22 and the bearing 21, and the second bevel gear 23 is meshed with the first bevel gear 19;
the supporting plate 24 is arranged below the second rotating shaft 20, two ends of the supporting plate 24 are respectively and fixedly connected with the inner walls of two sides of the collecting box 15, and a through hole 25 which faces vertically downwards is formed in the supporting plate 24;
a squeezing box 26, wherein the squeezing box 26 is arranged below the supporting plate 24, and the upper end of the squeezing box 26 is communicated with the bottom wall of the collecting box 15 through an opening;
a fan 27, wherein the fan 27 is arranged on the inner wall of the bottom of the collecting box 15 at the side close to the fixed table 14, and the air blowing side of the fan 27 faces the direction of the extrusion box 26;
first connecting rod 28, first connecting rod 28 one end with disc 22 periphery is articulated to be connected, the first connecting rod 28 other end is articulated to be connected with second connecting rod 29 one end, the second connecting rod 29 other end passes through-hole 25 extends to backup pad 24 below sets up clamp plate 30, clamp plate 30 is located directly over extrusion box 26, the cover is equipped with second spring 31 on the second connecting rod 29, second spring 31 one end with backup pad 24 fixed surface is connected, the second spring 31 other end with clamp plate 30 upper surface fixed connection.
The working principle and the beneficial effects of the technical scheme are as follows: when the numerical control machine tool starts to process, the transmission shaft part 2 rotates and drives the hydraulic chuck 1 to rotate, waste scraps are generated during processing, and the waste scraps can splash around and are difficult to clean due to the high-speed rotation of the hydraulic chuck 1, the collection box 15 is arranged on the right side of the fixed table 14, the collection box 15 can cover the hydraulic chuck 1, the transmission shaft part 2, a processing workpiece and the like in the collection box 15, the waste scraps generated during processing can be collected in the collection box 15 and deposited at the bottom of the collection box 15 under the action of gravity, then the waste scraps are blown into the extrusion box 26 under the action of the fan 27, the transmission shaft part 2 rotates and drives the first gear 16 to rotate, the first gear 16 drives the second gear 17 to rotate, the second gear 17 drives the second rotating shaft 20 to rotate, the second rotating shaft 20 drives the first bevel gear 19 to rotate, and the second bevel gear 23 rotates along with the first bevel gear 19 and drives the second rotating shaft 20 and the disc 22 to rotate due to the meshing of the first bevel gear 19, the periphery of the disc 22 is hinged with a first connecting rod 28, the disc 22 rotates to drive the first connecting rod 28 to reciprocate up and down, the first connecting rod 28 drives a second connecting rod 29 to reciprocate up and down in the through hole 25 of the supporting plate 24, thereby driving the pressing plate 30 to extrude the scraps collected in the extruding box 26, the second spring 31 can make the second connecting rod 29 reciprocate up and down in the through hole 25 more stably, through setting up sweeps collection device, utilize collecting box 15 can prevent that the sweeps from flying out the digit control machine tool and causing the accident of hindering the people, blow the sweeps to extrusion box 26 in through fan 27 and collect, the clearance of the sweeps of being convenient for, utilize the clamp plate 30 to the continuous extrusion of the sweeps in extrusion box 26, it is inseparabler to enable the sweeps, can deposit more sweeps in messenger's extrusion box 26, extrude the sweeps into the piece simultaneously, form wholly, the clearance of being convenient for more.
In one embodiment, further comprising: press from both sides tight early warning device, press from both sides tight early warning device and include:
the pressure sensor is arranged at one end of one transmission clamping jaw 3, which faces to the center of the hydraulic chuck 1, and is used for measuring the actual clamping force of the transmission clamping jaw 3;
the alarm is arranged on the hydraulic chuck 1;
the second controller is arranged on the surface of the hydraulic chuck 1 and is electrically connected with the pressure sensor and the alarm respectively;
the second controller controls the alarm to work based on the pressure sensor, and the method comprises the following steps:
step 1: the maximum tensile strength of the driving jaw 3 is calculated by equation (1):
wherein σZIs the maximum tensile strength, σ, of the driving jaw 31The yield limit of the transmission clamping jaw 3 is mu, the safety factor of the transmission clamping jaw is the ratio of failure stress and design stress of a material used by the transmission clamping jaw, mu is generally 1.3-1.7, pi is the circumferential rate, pi is 3.14, r is1Is the actual radius of the workpiece gripped by the driving jaw 3, SYThe preset maximum contact area of the transmission clamping jaw 3 and the workpiece is set;
step 2: based on step 1, the maximum clamping force of the driving clamping jaw 3 is calculated by formula (2):
wherein, FZMaximum clamping force of the driving clamping jaw 3, h1Thickness of said driving jaw 3, FCMaximum cutting force of tool for horizontal numerical control machine tool machining, f1Is the coefficient of friction between the driving jaw 3 and the workpiece in the axial direction of the workpiece, f2The friction coefficient between the transmission clamping jaw 3 and the workpiece in the circumferential direction of the workpiece is shown;
and step 3: calculating the difference between the maximum clamping force of the driving jaw 3 and the actual clamping force of the driving jaw 3 by formula (3) according to the pressure sensor:
QC＝FZ-FS(3)
wherein Q isCIs the difference between the maximum clamping force of the driving jaw 3 and the actual clamping force of the driving jaw 3, FSThe actual clamping force of the driving jaw 3 measured for the pressure sensor;
and 4, step 4: when Q isCWhen the value is more than 0, the alarm does not give an alarm, and when Q is greater than 0CAnd when the current is less than or equal to 0, the second controller controls the alarm to give an alarm.
The working principle and the beneficial effects of the technical scheme are as follows: when the equipment is used, the workpiece needs to be clamped by the transmission clamping jaw 3, so that the workpiece is machined, in the clamping process, the surface of the workpiece is clamped and damaged due to the fact that the clamping force is too large, and the transmission clamping jaw 3 can be damaged due to the fact that the maximum clamping force of the transmission clamping jaw 3 exceeds the maximum clamping force of the transmission clamping jaw 3, therefore, a pressure sensor is arranged at one end, facing the center of the hydraulic chuck 1, of the transmission clamping jaw 3, namely a contact surface of the transmission clamping jaw 3 and the workpiece, and is used for measuring the actual clamping force of the transmission clamping jaw 3, the maximum tensile strength of the transmission clamping jaw 3 can be calculated through a formula (1) according to the yield limit of the material of the transmission clamping jaw 3, then the maximum clamping force of the transmission clamping jaw 3 is calculated through a formula (2), finally, the comparison between the maximum clamping force, the transmission clamping jaw 3 can not be damaged under the actual clamping force, therefore, the alarm does not send out an alarm prompt, when the difference value between the maximum clamping force and the actual clamping force is less than or equal to 0, the actual clamping force is greater than or equal to the maximum clamping force, the transmission clamping jaw 3 can be damaged due to overlarge clamping force after long-term use under the actual clamping force, at the moment, the second controller controls the alarm to send out an alarm to prompt a worker to reduce the clamping force of the transmission clamping jaw 3 until the actual clamping force is less than the maximum clamping force, the alarm is cancelled, the maximum clamping force of the transmission clamping jaw 3 can be accurately judged by arranging the clamping early warning device, the worker is prompted to adjust the clamping force of the transmission clamping jaw 3 through the alarm, the surface of a workpiece can not be clamped due to the overlarge clamping force of the transmission clamping jaw 3, and meanwhile, under the, thereby the life of transmission clamping jaw 3 can be prolonged, the durability of transmission clamping jaw 3 is improved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Meanwhile, in the drawings of the invention, the filling pattern is only used for distinguishing the layers and is not limited at all.
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 (10)
1. The utility model provides a hydraulic chuck of horizontal digit control machine tool, includes hydraulic chuck (1), its characterized in that: one side fixed mounting of hydraulic chuck (1) has transmission shaft spare (2), the opposite side fixed mounting of hydraulic chuck (1) has three transmission clamping jaw (3), the fixed surface of hydraulic chuck (1) one side has cup jointed and has supported cover (6), the side fixed mounting who supports cover (6) one side has the three protection machanism (7) that shields, and is three the surface that shields protection machanism (7) one side respectively with the surface swing joint of the three transmission clamping jaw (3) other end.
2. The hydraulic chuck for horizontal numerical control machine tool according to claim 1, characterized in that: the outer sides of one ends of the three transmission clamping jaws (3) are movably sleeved with auxiliary blocks (4), a positioning screw (5) is movably sleeved in the auxiliary block (4), the other end of the positioning screw (5) is in threaded connection with the inside of the transmission clamping jaw (3), a fixing sleeve (8) is fixedly connected to the side surface of one transmission clamping jaw (3) in the three transmission clamping jaws (3), a probe type micro pressure sensor (9) is fixedly sleeved in the fixed sleeve (8), one end of the probe type micro pressure sensor (9) is provided with a top pressing block (11), the top pressing block (11) is fixedly connected to the side surface of the other side of the hydraulic chuck (1), the probe type micro pressure sensor (9) is electrically connected with a first controller (10), the first controller (10) is fixedly arranged on the side surface of one side of the support sleeve (6).
3. The hydraulic chuck for horizontal numerical control machine tool according to claim 2, characterized in that: the side of auxiliary block (4) one side has been seted up and has been stepped down groove (12), and the inside of auxiliary block (4) opposite side is fixed to be cup jointed compression spring (13), the other end swing joint of compression spring (13) is on the surface of transmission clamping jaw (3) one end.
4. The hydraulic chuck for horizontal numerical control machine tool according to claim 1, characterized in that: the mounting screw is fixedly sleeved inside the support sleeve (6), and one end of the mounting screw inside the support sleeve (6) is connected to the inside of one side of the hydraulic chuck (1) in a threaded mode.
5. The hydraulic chuck for horizontal numerical control machine tool according to claim 1, characterized in that: the shielding protection mechanism (7) is characterized in that a supporting sleeve (71) is arranged inside the shielding protection mechanism, one side of the supporting sleeve (71) is fixedly connected to the side face of one side of the supporting sleeve (6), a movable plate (72) is movably connected to the side face of the other side of the supporting sleeve (71), a connecting rod (73) is fixedly connected to the inner wall of one side of the movable plate (72), one end of the connecting rod (73) is movably sleeved inside the supporting sleeve (71), a buffer spring (74) is movably sleeved on the surface of the connecting rod (73), two ends of the buffer spring (74) are respectively fixedly connected to the inner wall of one side of the movable plate (72) and the surface of the supporting sleeve (71), an anti-falling block (75) is fixedly connected to the end face of one end of the connecting rod (73), and the surface of one side of the movable plate (72.
6. The hydraulic chuck for horizontal numerical control machine tool according to claim 2, characterized in that: the center line point of the jacking block (11) and the probe type micro pressure sensor (9) is on the same straight line, and the contact distance value between the jacking block (11) and the probe type micro pressure sensor (9) is equal to the stroke value of the transmission clamping jaw (3) on the hydraulic chuck (1).
7. The hydraulic chuck for horizontal numerical control machine tool according to claim 2, characterized in that: the first controller (10) comprises a microprocessor, a portable power supply and a buzzer, and the surface of the first controller (10) is not in contact with the surface of the hydraulic chuck (1).
8. The hydraulic chuck for horizontal numerical control machine tool according to claim 2, characterized in that: the inside of the positioning screw (5) comprises a nut, and one end of the nut fixedly connected with the positioning screw (5) is completely movably sleeved inside the auxiliary block (4).
9. The hydraulic chuck for horizontal numerical control machine tool according to claim 1, characterized in that:
still include fixed station (14), fixed station (14) cover is established transmission shaft spare (2) go up and with transmission shaft spare (2) rotate to be connected, be provided with sweeps collection device on fixed station (14), sweeps collection device includes:
the collecting box (15), the collecting box (15) is arranged on the right side of the fixed table (14), and the collecting box (15) covers the transmission shaft piece (2) and the hydraulic chuck (1) in the collecting box (15);
a first gear (16), said first gear (16) being arranged on said transmission shaft (2), said first gear (16) being located between said hydraulic chuck (1) and said fixed table (14);
the second gear (17) is arranged above the first gear (16) through a first rotating shaft (18), the first gear (16) is meshed with the second gear (17), one end of the first rotating shaft (18) is rotatably connected with the right side wall of the fixed table (14), and the other end of the first rotating shaft (18) is provided with a first bevel gear (19);
the second rotating shaft (20) is arranged on the right side of the first rotating shaft (18), the second rotating shaft (20) is perpendicular to the first rotating shaft (18), one end of the second rotating shaft (20) is rotatably connected with the inner wall of the collecting box (15) through a bearing (21), a disc (22) is arranged at the other end of the second rotating shaft (20), a second bevel gear (23) is arranged between the disc (22) and the bearing (21), and the second bevel gear (23) is meshed with the first bevel gear (19);
the supporting plate (24) is arranged below the second rotating shaft (20), two ends of the supporting plate (24) are fixedly connected with the inner walls of two sides of the collecting box (15) respectively, and a vertical downward through hole (25) is formed in the supporting plate (24);
the extrusion box (26), the extrusion box (26) is arranged below the supporting plate (24), and the upper end of the extrusion box (26) is communicated with the bottom wall of the collection box (15) through an opening;
the fan (27), the fan (27) is arranged on the inner wall of the bottom of the collecting box (15) close to one side of the fixed table (14), and the air blowing side of the fan (27) faces the direction of the squeezing box (26);
first connecting rod (28), first connecting rod (28) one end with disc (22) periphery is articulated to be connected, first connecting rod (28) other end and the articulated connection of second connecting rod (29) one end, second connecting rod (29) other end passes through-hole (25) extend to backup pad (24) below sets up clamp plate (30), clamp plate (30) are located directly over extrusion case (26), the cover is equipped with second spring (31) on second connecting rod (29), second spring (31) one end with backup pad (24) lower fixed surface is connected, second spring (31) other end with clamp plate (30) upper surface fixed connection.
10. The hydraulic chuck for horizontal numerical control machine tool according to claim 1, characterized in that: further comprising: press from both sides tight early warning device, press from both sides tight early warning device and include:
the pressure sensor is arranged at one end, facing the center of the hydraulic chuck (1), of the transmission clamping jaw (3) and is used for measuring the actual clamping force of the transmission clamping jaw (3);
the alarm is arranged on the hydraulic chuck (1);
the second controller is arranged on the surface of the hydraulic chuck (1), and is electrically connected with the pressure sensor and the alarm respectively;
the second controller controls the alarm to work based on the pressure sensor, and the method comprises the following steps:
step 1: calculating the maximum tensile strength of the driving jaw (3) by formula (1):
wherein σZIs that it isMaximum tensile strength, sigma, of a driving jaw (3)1The yield limit of the transmission clamping jaw (3) is represented by mu, the safety factor is the ratio of failure stress and design stress of a material used by the transmission clamping jaw (3), mu is generally represented by mu-1.3-1.7, pi is the circumferential rate, pi is 3.14, and r is represented by1Actual radius of a workpiece clamped by the driving clamping jaw (3), SYThe maximum contact area between the transmission clamping jaw (3) and the workpiece is preset;
step 2: based on step 1, calculating the maximum clamping force of the transmission clamping jaw (3) by a formula (2):
wherein, FZIs the maximum clamping force of the transmission clamping jaw (3), h1Is the thickness of the driving clamping jaw (3), FCMaximum cutting force of tool for horizontal numerical control machine tool machining, f1Is the friction coefficient between the transmission clamping jaw (3) and the workpiece in the axial direction of the workpiece, f2The friction coefficient between the transmission clamping jaw (3) and the workpiece in the circumferential direction of the workpiece is shown;
and step 3: calculating the difference between the maximum clamping force of the transmission clamping jaw (3) and the actual clamping force of the transmission clamping jaw (3) according to the pressure sensor by a formula (3):
QC＝FZ-FS(3)
wherein Q isCIs the difference between the maximum clamping force of the driving clamping jaw (3) and the actual clamping force of the driving clamping jaw (3), FS-the actual clamping force of the driving jaw (3) measured for the pressure sensor;
and 4, step 4: when Q isCWhen the value is more than 0, the alarm does not give an alarm, and when Q is greater than 0CAnd when the current is less than or equal to 0, the second controller controls the alarm to give an alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010921603.0A CN112059223A (en) | 2020-09-04 | 2020-09-04 | Hydraulic chuck of horizontal numerical control machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010921603.0A CN112059223A (en) | 2020-09-04 | 2020-09-04 | Hydraulic chuck of horizontal numerical control machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112059223A true CN112059223A (en) | 2020-12-11 |
Family
ID=73666184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010921603.0A Withdrawn CN112059223A (en) | 2020-09-04 | 2020-09-04 | Hydraulic chuck of horizontal numerical control machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112059223A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113385705A (en) * | 2021-05-27 | 2021-09-14 | 中国工程物理研究院材料研究所 | High-temperature-resistant dustproof chuck device |
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| CN206200159U (en) * | 2016-11-29 | 2017-05-31 | 新昌县双彩乡亚飞轴承厂 | A kind of adjustable claw clamping device on digital control lathe chuck |
| CN206200155U (en) * | 2016-10-10 | 2017-05-31 | 浙江三鸥机械股份有限公司 | A kind of dust-proof chuck |
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| CN108817431A (en) * | 2018-06-28 | 2018-11-16 | 芜湖新尚捷智能信息科技有限公司 | A kind of grip force controllable electric scroll chuck |
| CN210702618U (en) * | 2019-08-08 | 2020-06-09 | 武汉嘉迅汽车配件有限公司 | Turning lathe |
| CN210877562U (en) * | 2019-10-15 | 2020-06-30 | 平湖市华宏机械五金厂 | Lathe provided with scrap iron collecting device |
| CN210967038U (en) * | 2019-10-28 | 2020-07-10 | 青岛永达铆焊有限公司 | Three-jaw chuck of lathe for machining automobile flange plate |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2063452U (en) * | 1989-11-01 | 1990-10-10 | 李光滨 | Chuck protector |
| GB9709834D0 (en) * | 1997-05-15 | 1997-07-09 | Lovatt John | Workholding chuck for pressure sensitive materials |
| CN205184313U (en) * | 2015-12-15 | 2016-04-27 | 江苏牛牌精密机床有限公司 | Novel automatic digit control machine tool |
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| CN206200155U (en) * | 2016-10-10 | 2017-05-31 | 浙江三鸥机械股份有限公司 | A kind of dust-proof chuck |
| CN206200159U (en) * | 2016-11-29 | 2017-05-31 | 新昌县双彩乡亚飞轴承厂 | A kind of adjustable claw clamping device on digital control lathe chuck |
| CN108581608A (en) * | 2018-06-12 | 2018-09-28 | 潘红英 | A kind of milling machine iron filings retracting device |
| CN108817431A (en) * | 2018-06-28 | 2018-11-16 | 芜湖新尚捷智能信息科技有限公司 | A kind of grip force controllable electric scroll chuck |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113385705A (en) * | 2021-05-27 | 2021-09-14 | 中国工程物理研究院材料研究所 | High-temperature-resistant dustproof chuck device |
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Application publication date: 20201211 |