CN113634776A - Falling-preventing soft-connection containing device for cutting off thin-tube parts of numerical control lathe - Google Patents
Falling-preventing soft-connection containing device for cutting off thin-tube parts of numerical control lathe Download PDFInfo
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- CN113634776A CN113634776A CN202111086723.4A CN202111086723A CN113634776A CN 113634776 A CN113634776 A CN 113634776A CN 202111086723 A CN202111086723 A CN 202111086723A CN 113634776 A CN113634776 A CN 113634776A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B25/00—Accessories or auxiliary equipment for turning-machines
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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
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Abstract
The invention relates to a falling-proof flexible receiving and containing device for a numerical control machine cutting thin-tube part, belongs to the technical field of machining, and solves the problem that the thin-tube part in the prior art is easy to damage due to falling when being cut. The invention comprises the following steps: the hub holding frame and the flexible connector are taken; one end of the hub holding frame is provided with a screwing part, and the other end is provided with a connecting part; the containing hub frame is sleeved inside the blank and the thin cylinder part; the screwing part can be screwed with the blank; the connecting part can be connected with or separated from the flexible connector; the containing hub frame is also provided with a stopping part; when the thin cylinder part and the blank are cut off, the stopping part can prevent the thin cylinder part from falling off, soft receiving and containing after the part is cut off are achieved, and the part is prevented from being damaged.
Description
Technical Field
The invention relates to the technical field of machining, in particular to a falling-proof flexible receiving and containing device for a numerical control lathe cutting thin-tube part.
Background
When the numerical control lathe is used for processing parts, the protective door is in a closed state, and if thin cylinder parts are processed and formed, the protective door is cut off and falls to easily damage the surfaces of the parts and cause the deformation of the cylinder walls.
The existing operation mode usually adopts: the method comprises the steps that when a part is cut off, a sponge lining box is placed below a falling part and is used for containing the part; a protective door is pulled open, and the auxiliary tool is manually held to contain and take parts.
When operating according to the above method, there are the following problems: the cutting machine has the advantages that the parts are rotated and cut off, the parts cannot accurately fall into a sponge box, cutting chips fall into the box, the surfaces of the parts are easily damaged by cutting and falling, and the wall of the box is easily deformed; secondly, the protective door is pulled open, and the rotary cut-off parts are manually taken, so that safety accidents are easily caused; the method has low production efficiency and is not suitable for large-scale automatic production.
In order to meet the requirements of intelligent manufacturing and safe production, a falling-preventing flexible receiving and containing device for a numerical control machine cutting thin-tube part needs to be designed and manufactured.
Disclosure of Invention
In view of the above analysis, the present invention aims to provide a falling-proof flexible receiving and holding device for a car cutting thin-tube part, which is used for solving the problems that the surface of the part is easily damaged and the tube wall is deformed by falling after the thin-tube part is cut.
The purpose of the invention is mainly realized by the following technical scheme:
the utility model provides a digit car cuts off that thin section of thick bamboo class part prevents falling soft connecing and greatly gets device, includes: the hub holding frame and the flexible connector are taken;
one end of the hub holding frame is provided with a screwing part, and the other end is provided with a connecting part;
the containing hub frame is sleeved inside the blank and the thin cylinder part; the screwing part can be screwed with the blank; the connecting portion can be connected to or disconnected from the flexible connector.
Furthermore, a stopping part is also arranged on the containing hub frame; when the thin cylinder part is cut off from the blank, the stopping part can prevent the thin cylinder part from falling off.
Further, the flexible joint includes: a clamping assembly and a floating assembly.
Further, the clamping assembly is used for clamping the connecting part of the containing hub frame; the floating assembly can float along the axial direction of the containing hub frame.
Further, the clamping assembly includes: the elastic clamping jaw is arranged on the elastic clamping sleeve; a plurality of clamping jaw mounting grooves are circumferentially formed in the telescopic clamping sleeve, and the elastic clamping jaw is slidably mounted in the clamping jaw mounting grooves; the pressing elastic sheet is used for pressing the upper surface of the elastic clamping claw.
Further, the elastic claw is used for clamping the containing hub frame and can move radially relative to the telescopic cutting sleeve.
Furthermore, a plurality of ratchets are arranged on the cylindrical surface of the connecting part; when the flexible connector is connected with the containing hub frame, the elastic clamping claws are clamped on the ratchet steps of the adjacent ratchets on the connecting part.
Further, the clamping assembly also comprises a cylindrical jaw outer sleeve; the jack catch outer sleeve is sleeved outside the telescopic clamping sleeve and is fixedly connected with the telescopic clamping sleeve; the jack catch outer sleeve is provided with an elastic piece mounting groove, and the pressing elastic piece is mounted in the elastic piece mounting groove and fixedly connected with the jack catch outer sleeve.
Further, the floating assembly includes: a guide sleeve handle and a compression spring.
Furthermore, the telescopic clamping sleeve is sleeved outside the guide sleeve handle, and the guide sleeve handle is provided with a first convex limiting part; the compression spring is arranged between the first limiting part and the telescopic clamping sleeve; by compressing the compression spring, the retractable ferrule is able to displace axially relative to the guide sleeve handle.
The telescopic clamping sleeve is sleeved outside the guide sleeve handle and can relatively slide, and the guide is carried out through the guide sliding key, so that the telescopic clamping sleeve and the guide sleeve handle cannot relatively rotate and can only relatively slide along the axial direction;
and a compression spring is arranged between the guide sleeve handle and the telescopic clamping sleeve and provides pressing force for screwing and connecting the containing hub frame and the blank.
Further, the floating assembly further comprises: the limiting blocking cover is connected with the guide sleeve handle through threads, and a second limiting part is arranged on the limiting blocking cover; the second limiting part is used for limiting the stroke of the telescopic clamping sleeve along the axial displacement of the guide sleeve handle.
Further, the floating assembly further comprises: the outer surface of the guide sleeve handle is provided with a first key groove, and the surface of an inner hole of the telescopic clamping sleeve is provided with a second key groove; the lower part of the directional sliding key is clamped and assembled with the first key groove, and the upper part of the directional sliding key is clamped and assembled with the second key groove.
The technical scheme of the invention can at least realize one of the following effects:
1. the anti-falling flexible receiving and taking device for the car counting cut thin-tube parts, which is formed by the flexible receiving device and the containing hub frame, realizes automatic containing of the car counting cut thin-tube parts, and prevents the surfaces of the parts from being damaged and the wall from being deformed due to the cutting falling.
2. The containing hub frame is flexibly and elastically screwed with the blank under the action of the force application of the compression spring, and the containing hub frame is combined with or separated from the flexible connector to realize connection or separation with or from the clamping blank, so that the cut parts can be automatically and circularly prevented from falling.
3. The anti-falling flexible receiving and containing device for the number-of-vehicles cut-off thin-tube parts is simple and practical to manufacture, is suitable for automatic operation of manipulators, solves the problem that the number-of-vehicles cut-off thin-tube parts fall and are damaged, avoids potential safety hazards, and can meet the requirement of large-batch automatic production.
In the invention, the technical schemes can be combined with each other to realize more preferable combination schemes. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout.
FIG. 1 is a diagram showing a state of use of the anti-falling flexible receiving and holding device for the cutting thin-tube parts of the multi-car cutting machine of the invention;
FIG. 2 is a perspective view of the anti-falling flexible receiving and taking device for the cutting thin-tube parts of the numerical control lathe of the invention;
FIG. 3 is a cross-sectional view of the anti-falling flexible receiving and taking device for the cutting thin-tube parts of the numerical control lathe of the invention;
FIG. 4 is a partial cross-sectional view of the anti-fall flexible receiving and holding device for several cut-off thin tubular parts of the present invention;
FIG. 5 is a schematic view showing the installation state of the elastic claw of the anti-falling flexible receiving and taking device for the several-vehicle cut-off thin-tube parts of the invention;
FIG. 6 is a guide sleeve handle of the anti-falling flexible receiving and taking device for the cutting thin-tube parts of the numerical control lathe of the invention;
FIG. 7 is a cross-sectional view of the guide sleeve handle of FIG. 6;
FIG. 8 shows a retractable sleeve of the anti-falling flexible receiving and taking device for the car counting cutting thin-tube parts of the invention;
fig. 9 is a partial cross-sectional view of the retracting ferrule of fig. 8;
FIG. 10 is a view of a limit stop cover of the anti-falling flexible receiving and taking device for the cutting thin cylinder parts of the numerical control lathe of the invention;
FIG. 11 is a cross-sectional view of the positive stop cover of FIG. 10;
FIG. 12 is a jaw housing of the anti-falling flexible receiving and taking device for the multi-car cut-off thin-tube parts of the present invention;
FIG. 13 is a cross-sectional view of the pawl housing of FIG. 10;
FIG. 14 is the elastic claw of the anti-falling flexible receiving and taking device for the multi-car cutting thin-tube parts of the invention;
FIG. 15 is a pressing elastic sheet of the anti-falling flexible receiving and taking device for the car counting and cutting thin-tube parts of the invention;
FIG. 16 is a containing hub frame of the anti-falling flexible receiving and containing device for the cutting thin cylinder parts of the multi-lathe of the invention;
FIG. 17 is a cross-sectional view of the pick-up hub frame of FIG. 16;
FIG. 18 is a cross-section of the connecting portion of the hub of FIG. 16.
Reference numerals:
1-a guide sleeve handle; 2-a retractable card sleeve; 3-limiting blocking cover; 4-clamping jaw outer sleeves; 5-elastic jack catch; 6-pressing elastic pieces; 7-a directional feather key; 8-compression spring; 9-a first screw; 10-a second screw; 11-thin barrel parts; 12-holding and taking the hub frame; 13-a three-jaw chuck; 14-a blank;
101-a first limiting part; 102-a first keyway; 103-a shield cover mounting hole; 104-planar end face;
201-a first threaded hole; 202-jaw mounting groove; 203-limiting end face; 204-a second keyway;
301-a threaded portion; 302-a second limiting portion; 303-hexagonal counter bore;
401-a second threaded hole; 402-a third threaded hole; 403-spring plate mounting groove;
501-chamfering an inclined plane; 502-right angled side;
601-a fourth threaded hole;
1201-a twist section; 1202-a stop; 1203-connecting part.
Detailed Description
The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form a part hereof, and which together with the embodiments of the invention serve to explain the principles of the invention and not to limit its scope.
Example 1
The invention discloses a falling-proof flexible receiving and containing device for a numerical control cutting thin-tube part, which comprises: a hub holding frame 12 and a flexible connector;
one end of the containing hub frame 12 is provided with a screwing part 1201, and the other end is provided with a connecting part 1203;
the containing hub frame 12 is sleeved inside the blank 14 and the thin-tube part 11; the screwing part 1201 can be screwed with the blank 14; the connecting part 1203 can be connected with or separated from the flexible connector;
a stopping part 1202 is further arranged on the containing hub frame 12; when the thin-tube element 11 is cut off from the blank 14, the stopper 1202 can prevent the thin-tube element 11 from falling.
In a specific embodiment of the invention, a tail handle of the anti-falling flexible receiving and taking device for the thin-tube-cut parts of the counting lathe is inserted into a boring cutter mounting hole of the counting lathe disc type indexing cutter table and is connected and fastened with the cutter table. Further, the hydraulic three-jaw 13 is used for clamping the blank 14, the thin-tube part 11 is machined and formed in one time by a plurality of lathes, and meanwhile, internal threads are prefabricated on the inner hole of the blank 14 at the clamping position. The blank 14 is driven to rotate by a main shaft of the numerical control lathe, so that the external thread on the screwing part 1201 of the containing hub frame 12 is screwed with or unscrewed from the internal thread of the blank 14, and the connection or separation of the blank 14 and the containing hub frame 12 can be realized.
In one embodiment of the present invention, as shown in fig. 16-18, the holding hub frame 12 comprises, from left to right: a screwing part 1201, a stopping part 1202 and a connecting part 1203.
Specifically, the surface of the screwing part 1201 is provided with external threads, and the external threads on the screwing part 1201 are matched with the internal threads of the inner cavity of the blank 14, so that the holding hub frame 12 can be screwed with the blank 14.
Specifically, the diameter of the stopper 1202 is larger than that of the screwing part 1201 and the connecting part 1203, and the diameter of the stopper 1202 is larger than that of the thin-tube part 11, so that when the thin-tube part 11 is cut from the blank 14, the stopper 1202 can prevent the thin-tube part 11 from being separated from the containing hub 12 after being cut by rotation. After the thin cylinder part 11 and the blank 14 are cut off, the containing hub frame 12 can flexibly receive the thin cylinder part 11, namely the cut thin cylinder part 11 is sleeved on the containing hub frame 12 and cannot fall off, and the problems that the surface of the part is easily damaged by falling after the part is cut off and the cylinder wall is deformed are solved.
Specifically, the containing hub frame 12 is connected with the cutter platform through a flexible connector, and the cutter platform drives the displacement, so that the axis of the containing hub frame 12 is coincident with the axis of the blank 14. Specifically, the connecting portion 1203 is a ratchet structure for connecting with the flexible connector.
When in implementation: the flexible connector clamps the ratchet of the connecting part 1203 to enable the holding hub frame 12 to elastically float and be screwed with the internal thread of the blank 14, and after the flexible connector is screwed tightly, the flexible connector and the connecting part 1203 of the holding hub frame 12 rotate in a sliding mode; that is, after the containing hub frame 12 is screwed with the blank 14, the clamping force of the flexible connector is not enough to enable the containing hub frame 12 to continue rotating, the clamping piece (the elastic claw 5) of the flexible connector slides along the extending direction of the ratchet, and the flexible connector and the containing hub frame 12 are enabled to rotate in a friction sliding mode.
In one embodiment of the present invention, as shown in fig. 2 to 5, the flexible coupling includes: a clamping assembly and a floating assembly; the clamping assembly is used for clamping the connecting part 1203 of the hub holding frame 12; the floating assembly is capable of floating in the axial direction of the pick-up hub 12.
In one embodiment of the present invention, the clamping assembly comprises: the elastic clamping sleeve comprises a telescopic clamping sleeve 2, an elastic clamping jaw 5 and a pressing elastic sheet 6; a plurality of jaw mounting grooves 202 are circumferentially formed in the retractable card sleeve 2, and the elastic jaw 5 is slidably mounted in the jaw mounting grooves 202; the pressing elastic sheet 6 is used for pressing the upper surface of the elastic claw 5.
Further, the elastic claw 5 is used for clamping the containing hub 12 and can move radially relative to the retractable ferrule 2. The elastic claw 5 is in sliding fit with the telescopic cutting sleeve 2, the pressing elastic sheet 6 presses and holds the top surface of the elastic claw 5, and the bottom surface of the elastic claw 5 clamps a ratchet tail handle of the connecting part 1203 of the containing hub frame 12; the elastic claws 5 are pressed by the pressing elastic sheets 6, so that the elastic claws 5 clamp the containing hub frame 12.
A plurality of ratchets are arranged on the cylindrical surface of the connecting part 1203; when the flexible connector is connected with the containing hub frame 12, the elastic claw 5 is clamped on the ratchet step of the adjacent ratchet on the connecting part 1203.
Further, the clamping assembly also comprises a cylindrical jaw outer sleeve 4; the jack catch outer sleeve 4 is sleeved outside the telescopic cutting sleeve 2 and is fixedly connected with the telescopic cutting sleeve 2; the clamping jaw outer sleeve 4 is provided with an elastic sheet mounting groove 403, and the pressure applying elastic sheet 6 is mounted in the elastic sheet mounting groove 403 and fixedly connected with the clamping jaw outer sleeve 4.
As shown in fig. 8 and 9: the telescopic cutting sleeve 2 is provided with a first threaded hole 201, a jaw mounting groove 202, a limiting end face 203 and a second key groove 204. Wherein, jack catch mounting groove 202 is the ladder groove, and elasticity jack catch 5 is installed in jack catch mounting groove 202, and can radially slide for flexible cutting ferrule 2. The jack catch mounting groove 202 is provided with a plurality of circumferentially on the retractable card sleeve 2, and the plurality of jack catch mounting grooves 202 are evenly distributed. The inner hole of the telescopic cutting sleeve 2 is in sliding fit with the guide sleeve handle 1 and is in sliding fit with the directional sliding key 7 through the second key groove 204. The outer jaw jacket 4 is sleeved outside the retractable clamping sleeve 2. Specifically, the material of the telescopic cutting sleeve 2 is steel 45, and HRC 28-32 is hardened and tempered, so that the integral rigidity is enhanced.
As shown in fig. 12 and 13: the jack catch overcoat 4 is the cylindric, and 4 materials of jack catch overcoat select for use steel 45, and quenching and tempering HRC28 ~ 32 strengthens whole rigidity. The jaw outer sleeve 4 is provided with a second threaded hole 401, a third threaded hole 402 and a spring plate mounting groove 403; the second threaded hole 401 is matched with the first threaded hole 201 on the retractable sleeve 2 in a positioning manner and fastened by a screw, so that the clamping jaw outer sleeve 4 is fixedly connected with the retractable sleeve 2 and used for positioning and fastening the clamping jaw outer sleeve 4. The third threaded hole 402 is matched with a fourth threaded hole 601 on the pressing spring plate 6 and is provided with a screw, so that the pressing spring plate 6 is fastened on the jaw outer sleeve 4 and exerts radial force on the elastic jaw 5 (the radial direction refers to the radial direction of the retractable cutting sleeve 2).
As shown in fig. 14: the elastic claw 5 comprises an upper part and a lower part, wherein the upper part is a sliding part, and the lower part is a clamping part; the portion that slides is cuboid structure and the width of the portion that slides is greater than the clamping part, and the both sides of clamping part are equipped with chamfer inclined plane 501 and right angle side 502. Specifically, the material of the elastic claw 5 is bronze QAL9-4, and the movement has lubricity.
As shown in fig. 15: the pressing elastic sheet 6 is of a concave structure, a steel belt 60Si2Mn is selected as a material, and HRC 50-55 is quenched after bending, so that the elasticity is enhanced. The two ends of the pressure spring plate 6 are provided with fourth threaded holes 601, screws are arranged in the fourth threaded holes 601 to enable the pressure spring plate 6 to be tightly connected with the clamping jaw outer sleeve 4, the elastic clamping jaw is pressed on the left end face of the left view, and the force applied by the spring plate can be uniform at an included angle of 90 degrees. The clamping force of the elastic clamping claws 5 on the containing hub frame 12 is the elastic force exerted by the pressing elastic sheets 6 on the elastic clamping claws 5.
When in implementation:
when the spindle of the numerical control machine tool rotates forwards at a low speed, namely the blank 14 rotates forwards (clockwise/anticlockwise according to the thread turning direction on the blank), the chamfer inclined surface 501 at the lower left part of the elastic claw 5 applies force to the one-way ratchet on the connecting part 1203 of the containing hub frame 12 in a friction manner, and the elastic claw 5 clamps the containing hub frame 12, so that the containing hub frame 12 and the blank 14 rotate forwards relatively to realize screwing connection. After the holding hub frame 12 is screwed with the blank 14, the ratchet on the connecting part 1203 overcomes the clamping force with the elastic claw 5 and slides relative to the elastic claw 5.
When the spindle rotates reversely at a low speed, namely the blank 14 rotates reversely, the right-angled side surface 502 at the lower right part of the elastic claw 5 blocks the one-way ratchet step on the connecting part 1203 of the holding hub frame 12, so that the holding hub frame 12 is kept not to rotate, the blank 14 and the holding hub frame 12 rotate oppositely, the holding hub frame 12 overcomes the thread rotating force to rotate and separate from the blank 14, and the whole flexible holding device is separated from the clamped blank 14 in a rotating way.
In one embodiment of the present invention, the floating assembly includes: a guide sleeve handle 1 and a compression spring 8; the telescopic clamping sleeve 2 is sleeved outside the guide sleeve handle 1, and a first convex limiting part 101 is arranged on the guide sleeve handle 1; the compression spring 8 is arranged between the first limiting part 101 and the retractable ferrule 2.
The telescopic clamping sleeve 2 is sleeved outside the guide sleeve handle 1 and can slide relatively, and the guide sleeve is guided by the directional sliding key 7. A compression spring 8 is arranged between the guide sleeve handle 1 and the retractable cutting sleeve 2. By compressing the compression spring 8, the slip collar 2 can be displaced axially relative to the guide shank 1.
As shown in fig. 6 and 7: the guide sleeve handle 1 is provided with a first limiting part 101, and the first limiting part 101 is used for centering the compression spring 8.
The tail handle of the guide sleeve handle 1 is connected with a boring cutter mounting hole of the turning disc type transposition cutter platform, a plane end face 104 is arranged on the tail handle of the guide sleeve handle 1, and the tail handle of the guide sleeve handle 1 and the cutter platform are pressed and fastened through radial mounting screws.
Further, the floating assembly further comprises: the outer surface of the guide sleeve handle 1 is provided with a first key groove 102, and the inner surface of the telescopic cutting sleeve 2 is provided with a second key groove 204; the lower part of the directional feather key 7 is in snap fit with the first key groove 102, and the upper part of the directional feather key 7 is in snap fit with the second key groove 204. Specifically, the front end of the guide sleeve handle 1 is sleeved inside the telescopic cutting sleeve 2 and can slide relatively; the front end of the guide sleeve handle 1 is provided with a first key groove 102, a directional sliding key 7 is arranged in the first key groove 102, the directional sliding key 7 is pressed into the first key groove 102 of the guide sleeve handle 1, the directional sliding key 7 is matched with a second key groove 204 on the retractable sleeve 2, the rotation of the retractable sleeve 2 is limited, and the retractable sleeve 2 can only slide along the axial direction of the guide sleeve handle 1.
Specifically, the directional sliding key 7 is made of steel 45, and HRC 32-36 is tempered to increase surface hardness.
Specifically, the guide sleeve handle 1 is made of 45 steel, and HRC 28-32 is tempered, so that the integral rigidity is enhanced.
Further, the floating assembly further comprises: the limiting blocking cover 3 is connected with the guide sleeve handle 1 through threads, and a second limiting part 302 is arranged on the limiting blocking cover 3; the second limiting part 302 is used for limiting the stroke of the telescopic cutting sleeve 2 along the axial displacement of the guide sleeve handle 1.
The end part of the guide sleeve handle 1 is also provided with a blocking cover mounting hole 103, the blocking cover mounting hole 103 is a threaded hole, and the threaded part 301 of the limiting blocking cover 3 is screwed into the blocking cover mounting hole 103, so that the limiting blocking cover 3 is fixedly connected with the guide sleeve handle 1.
As shown in fig. 10 and 11: the stopper flap 3 includes a screw portion 301 and a second stopper portion 302.
Wherein, through screw thread fixed connection between screw thread portion 301 and the uide bushing handle 1, the size of the spacing portion 302 of second is greater than the port diameter of flexible cutting ferrule 2, and the in-process of screwing up of spacing fender lid 3 and uide bushing handle 1 is pressed through the spacing portion 302 of second and is held flexible cutting ferrule 2, and then flexible cutting ferrule 2 is pressed and is held compression spring 8, and the transmission makes the pressure that compression spring 8 warp, makes compression spring 8 store elasticity. The compression spring 8 provides a compressive force when the take-up hub 12 is screwed onto the blank 14.
The second limit part 302 is in clearance fit with the retractable cutting sleeve 2, the retractable cutting sleeve 2 is arranged on the guide sleeve handle in a floating mode through deformation of the compression spring 8, the containing hub frame 12 can be further in floating butt joint with the blank 14, and after the limit stop cover 3 is tightly pressed, the axial stroke of the retractable cutting sleeve 2 is 10 mm.
Further, the end face of the limiting blocking cover 3 is provided with a hexagonal counter bore 303, and the hexagonal counter bore 303 is used for being matched with a wrench, so that the limiting blocking cover 3 can be screwed conveniently. The limiting blocking cover 3 is made of 45 steel, and HRC 28-32 is tempered, so that the integral rigidity is enhanced.
When in implementation: the main shaft rotates forward at a low speed, the containing hub frame 12 elastically floats on the flexible connector in the axial direction, and the main shaft stops rotating after the containing hub frame 12 is screwed with the internal thread of the blank 14. The cutter table is far away from the parts, the flexible connector is separated from the tail handle of the containing and taking hub frame 12, the cutter table is switched to execute a cutting instruction, and the thin barrel parts 11 cut by the multiple cars slide on the containing and taking hub frame 12.
After the parts are cut off, the main shaft stops rotating, the cutter table is changed, and the flexible connector is jointed with the tail handle of the containing hub frame 12 into a whole again. The main shaft rotates clockwise at a low speed, the side surface of the elastic claw 5 clamps the one-way ratchet step of the tail handle of the containing hub frame 12, and the whole flexible containing device is separated from the clamped residual blank 14 in a rotating way.
Example 2
In a specific embodiment of the present invention, as shown in fig. 1, when a thin-tube-like part cutting process is performed, a falling-prevention flexible receiving and holding method for a thin-tube-like part cut by a numerical control lathe in an embodiment 1 is adopted to perform falling-prevention flexible receiving and holding, and the specific process includes the following steps:
step S1: connecting the flexible connector with the cutter platform; the containing hub frame 12 is clamped by an elastic claw 5 of the flexible connector;
step S2: the flexible connector provides pressing force when the containing hub frame 12 and the blank 14 rotate, and a plurality of main shafts drive the blank 14 to rotate in the positive direction so as to connect the containing hub frame 12 in the blank 14 in a rotating manner;
step S3: cutting the thin-tube element 11 from the blank 14; the cut thin barrel parts are sleeved on the containing hub frame 12 and are received through the containing hub frame 12;
step S4: the spindles drive the blank 14 to rotate in the opposite direction, so that the holding hub frame 12 is screwed out of the blank 14; thereby bringing the thin cylindrical part 11 out of engagement with the blank 14.
In step S1, before fastening the connection between the adapter and the tool post, the adapter is assembled according to the adapter structure shown in fig. 2-5, specifically:
step S11: pressing the directional sliding key 7 into the first key groove 102 of the guide sleeve handle 1, installing the compression spring 8 and the retractable cutting sleeve 2, and enabling a second key groove 204 on the retractable cutting sleeve 2 to be in sliding fit with the directional sliding key 7;
step S12: screwing the limit stop cover 3 into the guide sleeve handle 1 to ensure that the limit stop cover 3 and the guide sleeve handle 1 are tightly screwed; the limit stop cover 3 is used for spinning the telescopic cutting sleeve 2 and pressing the compression spring 8, and the telescopic cutting sleeve 2 is arranged on the guide sleeve handle 1 in a floating mode.
Step S13: a plurality of elastic clamping jaws 5 are in clearance fit with the clamping jaw mounting grooves 202 on the telescopic clamping sleeve 2 (attention is paid to the chamfering direction); after the mounting, the chamfered slant 501 of the elastic claw 5 can be fitted to the slant of the ratchet on the connecting portion 1203 of the loading hub 12, and the right-angled side 502 of the elastic claw 5 can be fitted to the step surface of the ratchet on the connecting portion 1203.
Step S14: the jaw outer sleeve 4 is sleeved outside the retractable cutting sleeve 2, and the second screw 10 is installed in the first threaded hole 201 and the second threaded hole 401, so that the jaw outer sleeve 4 is connected and fastened with the retractable cutting sleeve 2. The pressing elastic sheet 6 is arranged in an elastic sheet mounting groove 403 on the jaw outer sleeve 4, first screws are arranged in the third threaded hole 402 and the fourth threaded hole 601, the pressing elastic sheet 6 is connected and fastened with the jaw outer sleeve 4 through the first screws 9, and the pressing elastic sheet 6 elastically presses and holds the elastic jaw 5.
After the flexible connector is assembled and debugged, the axial elastic telescopic stroke of the telescopic clamping sleeve 2 is 10 mm, the compression spring 8 keeps the pressure of 20 newtons, the pressing elastic sheet 6 uniformly distributes clamping elasticity 10 newtons to the elastic clamping jaw 5, when the elastic clamping jaw 5 and the hub containing frame 12 rotate and slide relatively, the clamping elasticity of the pressing elastic sheet 6 needs to be overcome, and the elastic pressing sliding and rotating friction torque between the elastic clamping jaw 5 and the connecting part 1203 of the hub containing frame 12 is 0.2 newton.
Further, in step S1, the connection mode between the flexible connector and the tool post is as follows:
the tail handle of the guide sleeve handle 1 of the flexible connector is inserted into a boring cutter mounting hole of a turning disc type transposition cutter platform and is connected and fastened with the cutter platform, the connecting part 1203 of the containing hub frame 12 is inserted into the telescopic cutting sleeve 2 of the flexible connector and is clamped by a plurality of elastic clamping claws 5 uniformly distributed on the telescopic cutting sleeve 2, and the flexible connector and the containing hub frame 12 are connected into a whole. Preferably, the elastic clamping force of the elastic claws 5 uniformly distributed on the retractable cutting ferrule 2 is 10 newtons.
Further, in step S2, before screwing the hub frame 12 to the blank 14, the alignment is required, which includes:
the cutter platform drives the flexible connector of the flexible receiving and containing device and the containing and taking hub frame 12 to move, so that the screwing part 1201 of the containing and taking hub frame 12 extends into the thin cylinder part and is aligned with the inner hole of the blank 14, the containing and taking hub frame 12 is coaxial with the inner hole of the blank 14, and the screwing part 1201 is contacted with the port of the blank 14.
And, after the take-up hub 12 is aligned with the blank 14, the compression spring 8 is in a state of maximum compression.
Further, in step S2, the screwing process of the hub rack 12 and the blank 14 includes:
the spindle of the numerically controlled lathe rotates at a low speed to drive the blank 14 to rotate, and the internal thread on the surface of the inner hole of the blank 14 is gradually screwed with the external thread of the screwing part 1201 of the containing hub frame 12, so that the containing hub frame 12 is screwed with the blank 14 through the threads.
In the process of gradually screwing the hub frame 12 and the blank 14, the retractable cutting sleeve 2 moves towards the direction close to the blank 14, the compression spring 8 gradually extends (the elastic retractable stroke is 10 mm), and the elasticity of the compression spring is kept to be not less than 20 newtons.
After the holding hub frame 12 and the blank 14 are screwed, the elastic claw 5 and the ratchet surface on the connecting part 1203 of the holding hub frame 12 rotate in a friction sliding way (the friction torque is 0.2 Newton/meter), at this time, the pressing elastic sheet 6 is compressed, the spindle is further controlled to stop rotating, and the holding hub frame 12 and the blank 14 are screwed.
Further, in step S3, before the thin tube part 11 is cut, the flexible connector is moved away from the thin tube part 11 by the knife stand, and the flexible connector is separated from the connection portion 1203 of the hub holder 12.
Further, the cutter table is switched to execute a cutting instruction, and the thin cylinder part 11 cut by the numerical control lathe slides on the containing hub frame 12 (the containing hub frame 12 is made of polytetrafluoroethylene, so that the metal part cannot randomly fall off to damage the surface).
In step S4, after the thin barrel part 11 is cut off, the spindle is controlled to stop rotating, and the cutter platform drives the flexible connector to be jointed with the connecting part 1203 at the tail of the containing hub frame 12 again into a whole; the right-angled side surface 502 of the elastic claw 5 clamps the step surface of the one-way ratchet on the connecting part 1203 of the holding hub frame 12, and the elastic claw 5 of the flexible connector limits the rotation of the holding hub frame 12; the main shaft rotates reversely at a low speed, so that the containing hub frame 12 and the blank 14 rotate oppositely, and the whole flexible containing device is separated from the blank 14 clamped by the hydraulic three-jaw 13 in a rotating way.
In the process of rotationally separating the hub holder 12 from the blank 14, the retractable ferrule 2 moves in the direction away from the blank 14, and the compression spring 8 is gradually compressed. In the process of screwing or separating the containing hub frame 12 and the blank 14, the displacement stroke of the containing hub frame 12 is the floating stroke of the retractable cutting sleeve 2 relative to the guide sleeve handle 1, namely the length of the elastic deformation of the compression spring 8.
When the hub frame 12 is separated from the blank 14, the thin-tube part 11 is driven to be separated from the blank 14.
Further, the numerical control lathe controls the spindle to stop rotating, the protective door is automatically opened, and the thin cylinder part 11 sleeved on the containing hub frame 12 is taken out through the manipulator; the cutting and flexible receiving and taking of the thin cylinder part 11 are completed.
And further, the rest blank is loosened by the hydraulic three-jaw, the blank is clamped again by the feeding of the mechanical arm, the process is repeated, and the next part is machined by the machine tool. Through the assembly of the anti-falling flexible receiving and containing device for the multi-lathe cut-off thin-tube parts and the processing and cutting process of the numerical control lathe, the parts during cutting can be contained without hand, the working efficiency is improved, the potential safety hazard is avoided, and the anti-falling flexible receiving and containing device is suitable for large-scale automatic production.
Compared with the prior art, the technical scheme provided by the embodiment has at least one of the following beneficial effects:
the invention realizes the automatic containing and taking of thin cylinder parts by a plurality of vehicles through the combined use of the flexible connector and the containing and taking hub frame 12, and prevents the surfaces of the parts from being damaged by cutting, falling and deformation of the cylinder wall. The containing hub frame 12 is flexibly and elastically screwed to the blank under the action of the force applied by the compression spring 8, and the containing hub frame 12 is combined with or separated from the flexible connector to realize connection or separation with or from a clamping blank, so that cut parts can be automatically and circularly prevented from being contained and taken.
The anti-falling flexible receiving and containing device for the number-of-vehicles cut-off thin-tube parts is simple and practical to manufacture, is suitable for automatic operation of manipulators, solves the problem that the number-of-vehicles cut-off thin-tube parts fall and are damaged, avoids potential safety hazards, and can meet the requirement of large-batch automatic production.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (10)
1. The utility model provides a digit car cuts off that thin section of thick bamboo class part prevents falling gentle connecing and receives greatly gets device which characterized in that includes: a hub holding frame (12) and a flexible connector;
one end of the containing hub frame (12) is provided with a screwing part (1201), and the other end is provided with a connecting part (1203);
the containing hub frame (12) is sleeved inside the blank (14) and the thin-tube part (11).
2. The anti-falling flexible receiving and taking device for the cut thin-tube parts of the multiple lathes as claimed in claim 1, wherein the screwing part (1201) can be screwed with the blank (14); the connecting portion (1203) can be connected with or separated from the flexible connector.
3. The anti-falling flexible receiving and containing device for the vehicle cut-off thin-tube parts as claimed in claim 2, wherein a stopping part (1202) is further arranged on the containing hub frame (12); the stop (1202) is capable of preventing the thin-tube element (11) from falling when the thin-tube element (11) is cut off from the blank (14).
4. The anti-falling flexible receiving and taking device for the parts such as the cutting thin cylinders of the car as claimed in claim 2 or 3, wherein the flexible receiving device comprises: a clamping assembly and a floating assembly.
5. The anti-falling flexible receiving and containing device for the cut thin cylinder parts of the vehicle as claimed in claim 4, wherein the clamping assembly is used for clamping the connecting part (1203) of the containing hub frame (12); the floating assembly can float along the axial direction of the containing hub frame (12).
6. The device of claim 5, wherein the clamping assembly comprises: the elastic clamping sleeve comprises a telescopic clamping sleeve (2), an elastic clamping jaw (5) and a pressing elastic sheet (6); a plurality of jaw mounting grooves (202) are formed in the telescopic clamping sleeve (2) in the circumferential direction, and the elastic jaw (5) is slidably mounted in the jaw mounting grooves (202); the pressing elastic sheet (6) is used for pressing the upper surface of the elastic clamping jaw (5).
7. The anti-falling flexible receiving and containing device for the vehicle cut-off thin-tube parts as claimed in claim 6, wherein the elastic claw (5) is used for clamping the containing hub frame (12) and can move radially relative to the telescopic cutting sleeve (2).
8. The anti-falling flexible receiving and taking device for the multiple-vehicle cut-off thin-tube parts as claimed in claim 7, wherein a plurality of ratchets are arranged on a cylindrical surface of the connecting part (1203); when the flexible connector is connected with the containing hub frame (12), the elastic claw (5) is clamped on the ratchet step of the adjacent ratchet on the connecting part (1203).
9. The anti-falling flexible receiving and taking device for the cut thin-tube parts of the numerical control lathe as claimed in claim 8, wherein the clamping assembly further comprises a cylindrical jaw outer sleeve (4); the jack catch outer sleeve (4) is sleeved outside the telescopic clamping sleeve (2) and fixedly connected with the telescopic clamping sleeve (2).
10. The anti-falling flexible receiving and taking device for the car cutting thin-tube parts according to claim 9, wherein a spring piece mounting groove (403) is formed in the jaw outer sleeve (4), and the pressing spring piece (6) is mounted in the spring piece mounting groove (403) and is fixedly connected with the jaw outer sleeve (4).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111086723.4A CN113634776B (en) | 2021-09-16 | 2021-09-16 | Falling-preventing soft-connection containing device for cutting off thin-tube parts of numerical control lathe |
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| CN202111086723.4A CN113634776B (en) | 2021-09-16 | 2021-09-16 | Falling-preventing soft-connection containing device for cutting off thin-tube parts of numerical control lathe |
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| CN113634776B (en) | 2022-06-24 |
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