CN111331397A - Tubular product auxiliary stay tool and lathe for lathe - Google Patents
Tubular product auxiliary stay tool and lathe for lathe Download PDFInfo
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- CN111331397A CN111331397A CN202010296601.7A CN202010296601A CN111331397A CN 111331397 A CN111331397 A CN 111331397A CN 202010296601 A CN202010296601 A CN 202010296601A CN 111331397 A CN111331397 A CN 111331397A
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- 238000012545 processing Methods 0.000 abstract description 34
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- 230000008569 process Effects 0.000 abstract description 12
- 210000001503 joint Anatomy 0.000 abstract description 3
- 238000003754 machining Methods 0.000 description 9
- 230000007246 mechanism Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
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- 206010023204 Joint dislocation Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
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- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005459 micromachining Methods 0.000 description 1
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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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
- B23Q3/064—Work-clamping means adapted for holding workpieces having a special form or being made from a special material for holding elongated workpieces, e.g. pipes, bars or profiles
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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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
-
- 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
- B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
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Abstract
A pipe auxiliary supporting jig for a machine tool and the machine tool. The invention fixes the sliding blocks by matching the rotating shaft end fixing plate, the limit stop block, the guide shaft, the linear bearing, the X shaft end fixing plate and the sliding block fixing seat, so that the sliding blocks can be arranged between the spring chuck and the bush of the machine tool along the guide shaft, and the middle part of a workpiece is lifted and supported by the supporting shaft sleeve on the top of the sliding blocks. The invention can ensure that a machine tool can firmly clamp a workpiece in the process of processing a precise thin-walled tube with the outer diameter of less than 1mm, and accurately position the workpiece, so that the workpiece is processed more stably and reliably. The invention can avoid the problems of pipe sinking, butt joint and dislocation in the conventional positioning clamping and continuous processing of workpieces by lifting the supporting shaft sleeve and the sliding block. The invention can realize the processing of the precise thin-walled tube with the outer diameter of less than 1mm and also provides certain reference and reference for the processing of other similar small rotary parts.
Description
Technical Field
The invention relates to the field of laser processing equipment, in particular to a pipe auxiliary supporting jig for a machine tool and the machine tool.
Background
The clamping jig is used as a precise professional tool for controlling the position and the action of a workpiece by a numerical control machine, and the quality of the workpiece machined by the clamping jig is directly determined by the quality degree and the machining precision of the self design. With the rapid development of industrial 4.0 technology, the processing requirements and the yield requirements of precision parts, especially thin and long thin-walled tubular parts with low rigidity and high flexibility are gradually increased. The conventional clamping and supporting method and the conventional processing technology cannot meet the clamping and processing of fine workpieces such as precise thin-walled tubes with the outer diameter of less than 1 mm. The technical field of micromachining is becoming more and more the focus and difficulty of research in the field of precision manufacturing.
The clamping mode of traditional tubular product processing all adopts to press from both sides tightly fixed with tubular product one end basically, adopts the axle sleeve the same with the tubular product external diameter to carry out the mode of auxiliary stay at the other one end of tubular product and realizes. However, for a thin and long tubular part with low rigidity and high flexibility, if the clamping mode is adopted, the pipe between the clamping end and the supporting end can hang down in a free state under the action of gravity during the processing of a workpiece. Because the rigidity of the workpiece is insufficient, the workpiece is easily subjected to the action of gravity in the machining process, deflection deformation occurs, and the workpiece cannot be kept in a tight state and is easily sunken. The sinking of the pipe to be processed easily causes the rotating shaft to generate serious deviation in the axial direction in the process of processing and feeding, and the processing precision and the processing quality are seriously influenced.
Disclosure of Invention
The invention provides a pipe auxiliary supporting jig for a machine tool and the machine tool, aiming at the defects of the prior art, the pipe auxiliary supporting jig for the machine tool adopts a modular design, so that the supporting length of the pipe auxiliary supporting jig for the machine tool can be increased or decreased randomly according to the lengths of the pipe and the machine tool, and the pipe auxiliary supporting jig for the machine tool can synchronously move along with a clamping rotating shaft of the machine tool, thereby avoiding the problems that the pipe is disturbed and deformed due to insufficient rigidity in the machining process, and the machining precision and quality are influenced. The invention provides the following technical scheme for the precise processing of the slender thin-wall tubular part with low rigidity and high flexibility.
First, in order to achieve the above object, a tube auxiliary supporting jig for a machine tool is provided, which includes:
the rotating shaft end fixing plate is arranged at one end of the pipe auxiliary supporting jig for the machine tool, is arranged above an X-axis moving platform of the machine tool and is fixedly connected with a rotating shaft of the machine tool;
the limit stop block is arranged at the other end of the pipe auxiliary supporting jig for the machine tool, is arranged above an X-axis motion platform of the machine tool and is fixedly connected with a two-dimensional adjusting seat of the machine tool;
the guide shaft is connected between the rotary shaft end fixing plate and the limit stop block along the X-axis direction of the machine tool, and two ends of the guide shaft are respectively fixedly connected with the rotary shaft end fixing plate and the limit stop block;
the linear bearing is connected to the guide shaft, arranged between the rotary shaft end fixing plate and the limit stop and capable of moving along the guide shaft;
the X-axis end fixing plate is fixedly connected with the linear bearing, is arranged at the rear end of an X-axis motion platform of the machine tool and synchronously moves with the linear bearing;
the sliding block fixing seat is connected to the guide shaft, is arranged between the rotating shaft end fixing plate and the X shaft end fixing plate and can move along the guide shaft;
the sliding blocks comprise a plurality of sliding blocks which are arranged between the sliding block fixing seat and the X shaft end fixing plate along the guide shaft, and each sliding block can move along the guide shaft;
the supporting shaft sleeves are respectively arranged at the tops of the sliding blocks, and each supporting shaft sleeve is respectively provided with a supporting hole which is arranged along the axial direction of the guide shaft and is used for a workpiece to penetrate through;
and the workpiece sequentially penetrates through the supporting shaft sleeves arranged at the tops of the sliding blocks along the guide shaft, and is lifted between the spring chuck and the bush of the machine tool through the supporting holes of the supporting shaft sleeves.
Optionally, the pipe auxiliary support jig for a machine tool as described in any one of the above, wherein an adjusting screw is further connected between the sliding block and the support shaft sleeve, the adjusting screw rotates on the sliding block, the support shaft sleeve moves inside the sliding block along with the rotation of the adjusting screw, and the support hole is adjusted to move to a position coaxial with the workpiece.
Optionally, as for any one of the above auxiliary supporting jig for the tube for the machine tool, the adjusting screws include first adjusting screws vertically arranged above the top of the sliding block and second adjusting screws horizontally arranged on the side edge of the top of the sliding block, the first adjusting screws and the second adjusting screws are respectively connected to the top and the side portion of the supporting shaft sleeve, the first adjusting screws rotate above the top of the sliding block to drive the supporting shaft sleeve to vertically move up and down along the sliding block, and the second adjusting screws rotate on the side edge of the top of the sliding block to drive the supporting shaft sleeve to horizontally move back and forth along the sliding block.
Optionally, the pipe auxiliary support jig for the machine tool as described in any one of the above, wherein the slide block includes a first slide block, a second slide block, a third slide block and a fourth slide block which are sequentially arranged between the slide block fixing seat and the X-axis end fixing plate along the guide shaft, wherein the front end of the bottom of the first slide block is fixedly connected with the slide block fixing seat, and the fourth slide block is fixedly connected with the X-axis end fixing plate; and movable connecting rods are respectively connected among the first sliding block, the second sliding block, the third sliding block and the fourth sliding block, are supported among the first sliding block, the second sliding block, the third sliding block and the fourth sliding block, and drive the first sliding block, the second sliding block, the third sliding block and the fourth sliding block to be uniformly distributed between the sliding block fixing seat and the X shaft end fixing plate along the guide shaft along with the forward and backward movement of the sliding block fixing seat.
Optionally, as above, the pipe auxiliary supporting jig for a machine tool, wherein the movable connecting rod includes:
the front end of the first movable connecting rod is connected with the bottom of the first sliding block, and the rear end of the first movable connecting rod is connected with the middle of the second sliding block;
the front end of the second movable connecting rod is connected with the middle part of the first sliding block, and the rear end of the second movable connecting rod is connected with the bottom of the second sliding block;
the front end of the third movable connecting rod is connected with the bottom of the second sliding block, and the rear end of the third movable connecting rod is connected with the middle part of the third sliding block;
the front end of the fourth movable connecting rod is connected with the middle part of the second sliding block, and the rear end of the fourth movable connecting rod is connected with the bottom of the third sliding block;
the front end of the fifth movable connecting rod is connected with the bottom of the third sliding block, and the rear end of the fifth movable connecting rod is connected with the middle part of the fourth sliding block;
and the front end of the sixth movable connecting rod is connected with the middle part of the third sliding block, and the rear end of the sixth movable connecting rod is connected with the bottom of the fourth sliding block.
Optionally, as for any one of the above pipe auxiliary supporting jigs for a machine tool, a fixing hole is further provided on the slider fixing seat, and a screw passes through the fixing hole to be fixedly connected with the slider fixing seat and the guide shaft, so as to limit the slider fixing seat to move along the guide shaft.
Optionally, as for any one of the above pipe auxiliary supporting jigs for a machine tool, the jig further includes a position fixing block, a front end of the position fixing block is fixedly connected to the fourth slider, and a rear end of the position fixing block is fixedly connected to the X-axis end fixing plate.
Meanwhile, the invention also provides a machine tool, wherein the machine tool is provided with the pipe auxiliary supporting jig for the machine tool.
Advantageous effects
The invention fixes the sliding blocks by matching the rotating shaft end fixing plate, the limit stop block, the guide shaft, the linear bearing, the X shaft end fixing plate and the sliding block fixing seat, so that the sliding blocks can be arranged between the spring chuck and the bush of the machine tool along the guide shaft, and the middle part of a workpiece is lifted and supported by the supporting shaft sleeve on the top of the sliding blocks. The invention can ensure that a machine tool can firmly clamp a workpiece in the process of processing a precise thin-walled tube with the outer diameter of less than 1mm, and accurately position the workpiece, so that the workpiece is processed more stably and reliably. The invention can avoid the problems of pipe sinking, butt joint and dislocation in the conventional positioning clamping and continuous processing of workpieces by lifting the supporting shaft sleeve and the sliding block. The invention can realize the processing of the precise thin-walled tube with the outer diameter of less than 1mm and also provides certain reference and reference for the processing of other similar small rotary parts.
Furthermore, two kinds of adjusting screws which are perpendicular to each other are arranged at the top of the sliding block, so that the supporting shaft sleeve can be accurately adjusted to be coaxial with the workpiece. Therefore, the workpiece can be always kept in a horizontal and horizontal straight state in the whole machining process by lifting the shaft sleeve, and the workpiece is uniformly supported in the middle of the workpiece by the support of the shaft sleeve, so that the deflection deformation of the workpiece is reduced as much as possible.
Meanwhile, a plurality of groups of movable connecting rods which are connected with each other in a cross mode are arranged among the sliding blocks, the movable connecting rods can correspondingly contract or expand along with the movement of the sliding blocks, and the movable connecting rods have the same size and the same height, so that the movable connecting rods can ensure that the intervals among the sliding blocks are equal, and the workpiece is supported in the middle of the workpiece in an evenly distributed mode. The supporting mode can further avoid local deformation of the workpiece, the sliding blocks can correspondingly move according to the processing requirement of the workpiece, but the distance between the sliding blocks can be kept consistent through the movable connecting rods in the moving process, so that the accuracy and the stability of the whole processing process can be further ensured.
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.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of a pipe auxiliary supporting jig for a machine tool according to the present invention;
FIG. 2 is a schematic view of the tube auxiliary supporting jig for machine tool according to the present invention;
in the drawings, 1 denotes a rotary shaft end fixing plate; 2 denotes a support sleeve; 3 denotes a first slider; 4 denotes an adjusting screw; 5 denotes a second slider; 6 denotes a third slider; 7 denotes a fourth slider; 8 denotes a linear bearing; 9 denotes a limit stopper; 10 denotes a guide shaft; 11 denotes an X-axis end fixing plate; 12 denotes a position fixing block; 13 denotes a pin screw; 14 denotes a movable link; 15, a slider holder; 16 denotes a slide bar; 17 denotes an X-axis motion stage; 18 denotes a rotation axis; 19 denotes a collet chuck; 20, workpieces; 21 denotes a bush; and 22 denotes a two-dimensional adjustment seat.
Detailed Description
In order to make the purpose and technical solution of the embodiments of the present invention clearer, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The meaning of the inner and the outer in the invention refers to that the direction pointing to the inside of the sliding block is inner, and vice versa, relative to the auxiliary pipe supporting jig for the machine tool; and not as a specific limitation on the mechanism of the device of the present invention.
The meaning of the front and the back in the invention means that when a user faces the pipe auxiliary supporting jig for the machine tool, the direction from the rotating shaft end fixing plate to the limit stop block is the back, otherwise, the direction is the front, and the device mechanism is not specially limited.
The term "connected" as used herein may mean either a direct connection between the components or an indirect connection between the components via other components.
The meaning of "up and down" in the invention means that when a user faces the pipe auxiliary supporting jig for the machine tool, the upward direction from the machine tool to the user is the upward direction, otherwise, the downward direction is the downward direction, and the invention is not specially limited to the device mechanism.
Fig. 1 shows a pipe auxiliary supporting jig for a machine tool according to the present invention, which is arranged on the machine tool comprising a bed, an X-axis moving platform 17, a rotating shaft 18, a collet chuck 19, a bushing 21 and a two-dimensional adjusting seat 22 in the manner shown in fig. 2. The X-axis motion platform is arranged on the machine tool body; the rotating shaft 18 is arranged on the X-axis motion platform in a reciprocating manner along the X-axis direction; the two-dimensional adjusting seat 22 is arranged at the rear end of the X-axis moving platform and used for adjusting workpieces in the horizontal and vertical directions perpendicular to the X axis, a mounting seat and a guide shaft sleeve are arranged on the two-dimensional adjusting seat 22, the guide shaft sleeve is assembled on the mounting seat, and the mounting seat is fixedly connected with the two-dimensional adjusting seat 22.
The pipe auxiliary supporting jig is composed of a rotating shaft end fixing plate, an X shaft end fixing plate, a sliding block, a movable connecting rod, a sliding rod, a supporting shaft sleeve, a linear bearing, a guide shaft and the like, and is integrally and modularly designed, wherein the first end of the pipe auxiliary supporting jig is arranged on a rotating shaft, and the second end of the pipe auxiliary supporting jig is arranged at the tail end of an X-axis moving platform and can synchronously reciprocate on the X axis along with the rotating shaft. Referring to fig. 1, the auxiliary supporting jig for a pipe may specifically include:
the rotary shaft end fixing plate 1 is arranged at one end of the pipe auxiliary supporting jig for the machine tool, is arranged above an X-axis moving platform 17 of the machine tool and is fixedly connected with a rotary shaft 18 of the machine tool;
the limit stop 9 is arranged at the other end of the auxiliary pipe supporting jig for the machine tool, is arranged above the X-axis moving platform 17 of the machine tool, and is fixedly connected with the two-dimensional adjusting seat 22 of the machine tool;
the guide shaft 10 is connected between the rotary shaft end fixing plate 1 and the limit stop 9 along the X-axis direction of the machine tool, and two ends of the guide shaft are respectively fixedly connected with the rotary shaft end fixing plate 1 and the limit stop 9;
the linear bearing 8 is connected to the guide shaft 10, is arranged between the rotary shaft end fixing plate 1 and the limit stop 9, and can move along the guide shaft 10;
an X-axis end fixing plate 11 which is fixedly connected with the linear bearing 8, is arranged at the rear end of an X-axis motion platform 17 of the machine tool and moves synchronously with the linear bearing 8;
the sliding block fixing seat 15 is connected to the guide shaft 10, is arranged between the rotating shaft end fixing plate 1 and the X shaft end fixing plate 11, and can move along the guide shaft 10;
a plurality of sliders arranged between the slider fixing seat 15 and the X-axis end fixing plate 11 along the guide shaft 10, each of the sliders being movable along the guide shaft 10;
the workpiece sequentially penetrates through the supporting shaft sleeves 2 arranged at the tops of the sliding blocks along the guide shaft 10, and is lifted between a collet chuck 19 and a bush 21 of the machine tool through supporting holes of the supporting shaft sleeves 2.
Therefore, the linear bearing 8 is arranged on the X shaft end fixing plate 11, two guide shafts 10 are arranged to penetrate through the linear bearing 8, and two ends of each guide shaft 10 are respectively connected with the rotary shaft end fixing plate 1 and the limit stop 9; the mounting holes provided below the respective sliders sequentially pass through the guide shaft 10 and are in sliding fit with the guide shaft 10, so that the sliders can be moved to appropriate positions along the guide shaft 10. The slide block fixing seat 15 of the pipe auxiliary supporting jig is fixed on the slide block at the front end, so that the position of the slide block on the guide shaft 10 can be conveniently adjusted according to the machining condition, the slide block fixing seat 15 can be fixed on the guide shaft 10 through screws after adjustment, the supporting shaft sleeve 2 is respectively installed on each slide block, and a workpiece 20 is supported between a spring chuck 19 and a bush 21 of a machine tool to avoid the deformation of the workpiece due to disturbance in the machining process.
Therefore, the auxiliary pipe supporting jig can fix the sliding blocks through the matching among the rotating shaft end fixing plate, the limit stop, the guide shaft, the linear bearing, the X shaft end fixing plate and the sliding block fixing seat, so that the sliding blocks can be distributed between a spring chuck and a bush of a machine tool along the guide shaft, and the middle part of a workpiece is lifted and supported through the supporting shaft sleeve at the top of the sliding blocks. The invention can ensure that a machine tool can firmly clamp a workpiece in the process of processing a precise thin-walled tube with the outer diameter of less than 1mm, and accurately position the workpiece, so that the workpiece is processed more stably and reliably. The invention can avoid the problems of pipe sinking, butt joint and dislocation in the conventional positioning clamping and continuous processing of workpieces by lifting the supporting shaft sleeve and the sliding block. The invention can realize the processing of the precise thin-walled tube with the outer diameter of less than 1mm and also provides certain reference and reference for the processing of other similar small rotary parts.
In a more specific implementation manner, the auxiliary supporting jig for the tube of the present invention is specifically provided with: rotating the shaft end fixing plate 1; a support shaft sleeve 2; a first slider 3; an adjusting screw 4; a second slider 5; a third slider 6; a fourth slider 7; a linear bearing 8; a limit stop 9; a guide shaft 10; an X shaft end fixing plate 11; a position fixing block 12; a pin shaft screw 13; a movable connecting rod 14; a slider fixing base 15; a slide bar 16 and the like.
The machine tool is provided with a finger cylinder and the bush 21 on a two-dimensional adjusting seat 22. The two-dimensional adjusting seat 22 is fixed on the end surface of the X-axis moving platform 17. The rotary shaft end fixing plate 1 of the auxiliary supporting jig is connected with a rotary shaft of a machine tool, and the X shaft end fixing plate at the other end is connected with the tail end of an X-axis moving platform 17 of the machine tool. The workpiece to be processed passes through the center of the rotating shaft, sequentially passes through the supporting shaft sleeves 2 on the sliding blocks and then is in sliding fit with the bush 21, and the middle of the workpiece 20 is supported.
An adjusting screw 4 can be further arranged between the sliding block and the supporting shaft sleeve 2, the adjusting screw 4 rotates on the sliding block, the supporting shaft sleeve 2 moves inside the sliding block along with the rotation of the adjusting screw 4, and the supporting hole is adjusted to move to a position coaxial with the workpiece 20.
Particularly, adjusting screw 4 on each slider can set up to including the first adjusting screw and the second adjusting screw of level setting at slider top side of setting perpendicularly in slider top, first adjusting screw and second adjusting screw are connected respectively the top and the lateral part of supporting axle sleeve 2, first adjusting screw is in the rotatory supporting axle sleeve 2 of driving in the top of slider moves vertically from top to bottom along the slider, the second adjusting screw is in the rotatory supporting axle sleeve 2 of driving in the top side of slider moves along slider horizontal migration from top to bottom.
In order to further reduce deflection deformation among all parts of the workpiece, the invention also specifically arranges the slide block to comprise a slide block fixing seat 15 and an X shaft end fixing plate 11 which are arranged between the slide block fixing seat 15 and the X shaft end fixing plate 11 along the guide shaft 10 in sequence: a first slider 3, a second slider 5, a third slider 6 and a fourth slider 7. The front end of the bottom of the first sliding block 3 is fixedly connected with the sliding block fixing seat 15, and the fourth sliding block 7 is fixedly connected with the X shaft end fixing plate 11; and movable connecting rods 14 are respectively connected among the first sliding block 3, the second sliding block 5, the third sliding block 6 and the fourth sliding block 7, the movable connecting rods 14 are respectively supported among the first sliding block 3, the second sliding block 5, the third sliding block 6 and the fourth sliding block 7, and drive the first sliding block 3, the second sliding block 5, the third sliding block 6 and the fourth sliding block 7 to be uniformly distributed between the sliding block fixing seat 15 and the X-axis end fixing plate 11 along the guide shaft 10 along with the forward and backward movement of the sliding block fixing seat 15.
Specifically, the movable links 14 between the respective sliders are fixedly hinged at their connecting portions by pin screws 13 to form a parallel four-bar linkage, and are linked with the sliders to reciprocate along the guide shaft 10. Specifically, the transmission structure between the sliders includes:
the front end of the first movable connecting rod is connected with the bottom of the first sliding block 3, and the rear end of the first movable connecting rod is connected with the middle part of the second sliding block 5;
the front end of the second movable connecting rod is connected with the middle part of the first sliding block 3, and the rear end of the second movable connecting rod is connected with the bottom of the second sliding block 5;
the front end of the third movable connecting rod is connected with the bottom of the second sliding block 5, and the rear end of the third movable connecting rod is connected with the middle part of the third sliding block 6;
the front end of the fourth movable connecting rod is connected with the middle part of the second sliding block 5, and the rear end of the fourth movable connecting rod is connected with the bottom of the third sliding block 6;
the front end of the fifth movable connecting rod is connected with the bottom of the third sliding block 6, and the rear end of the fifth movable connecting rod is connected with the middle part of the fourth sliding block 7;
and the front end of the sixth movable connecting rod is connected with the middle part of the third sliding block 6, and the rear end of the sixth movable connecting rod is connected with the bottom of the fourth sliding block 7.
Before processing, the rotating shaft 18 moves to the left side of the X-axis moving platform 17 quickly to the processing initial position, and at the moment, the auxiliary supporting jig module moves together with the rotating shaft 18 and is pulled up to the longest state in the drawing; then, a workpiece to be processed passes through the center of the rotating shaft 18, and simultaneously passes through the plurality of supporting shaft sleeves 2 and the bushings 21 on the jig to form a sliding fit (generally, 5 mm-10 mm passes through the bushings), and the positions of the supporting shaft sleeves 2 are adjusted through the adjusting screws 4, so that the pipe and each supporting shaft sleeve 2 are basically concentric. The workpiece is in the process of processing, the elastic chuck 19 can clamp the workpiece firstly, then the workpiece is fed to the X-axis motion platform 17 in the right direction while rotating according to the processing requirement, the rotating shaft 18 can also synchronously drive the guide shaft 10 on the auxiliary jig module to move together, at the moment, under the action of the parallel four-bar linkage mechanism, the first slider 3, the second slider 5 and the third slider 6 simultaneously draw close to the fourth slider 7 at a constant speed, when the tail end of the pipe is processed, the rotating shaft moves to the limit position on the right side of the X-axis motion platform, at the moment, the first slider 3, the second slider 5, the third slider 6 and the fourth slider 7 can be attached together. If continuous processing is required for multiple times, the above cycle steps are repeated.
In order to fix each sliding block, a fixing hole can be further formed in the sliding block fixing seat 15, a screw penetrates through the fixing hole, the sliding block fixing seat 15 and the guide shaft 10 are fixedly connected, and the sliding block fixing seat 15 is limited to move along the guide shaft 10. Correspondingly, the rear end of the pipe auxiliary supporting jig can be further provided with a position fixing block 12, the front end of the position fixing block 12 is fixedly connected with the fourth sliding block 7, the rear end of the position fixing block 12 is fixedly connected with the X shaft end fixing plate 11, and the position fixing block 12 is used for adjusting and fastening the position between the fourth sliding block 7 at the rear end and the X shaft end fixing plate 11.
In the whole processing process, the workpiece is lifted by the supporting shaft sleeve 2 on the supporting jig all the time, and the sunken deformation cannot occur due to the dead weight, so that the accuracy and the stability of the whole processing process can be ensured.
The invention has the advantages that the parallel four-bar mechanism can support workpieces with any length, namely, the number of the slide blocks, the movable connecting rods and the supporting shaft sleeves on the jig can be increased or decreased according to the length of the workpieces, and theoretically, the parallel four-bar mechanism can be infinitely constructed to support the workpieces with any length.
Therefore, the pipe auxiliary supporting jig is used for supporting, so that the clamping of a machine tool in the process of machining a precise thin-walled pipe with the outer diameter of less than 1mm can be guaranteed to be firm, accurate in positioning, stable and reliable, the problem that the middle of the pipe is sunken in the process of positioning and clamping a long and thin workpiece in a conventional mode can be avoided, and the problem that the long and thin workpiece is in butt joint dislocation in the process of continuously machining the long and thin workpiece in the conventional mode can be avoided. The invention provides a feasible solution of comprehensive optimization for supporting, positioning and processing the precise thin-walled tube with any length below 1mm, realizes the processing of the precise thin-walled tube with the outer diameter below 1mm, and can also provide reference and reference for the processing of other similar small rotary parts.
The above are merely embodiments of the present invention, which are described in detail and with particularity, and therefore should not be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the spirit of the present invention, and these changes and modifications are within the scope of the present invention.
Claims (8)
1. The utility model provides a tubular product auxiliary stay tool for lathe which characterized in that includes:
the rotary shaft end fixing plate (1) is arranged at one end of the auxiliary pipe supporting jig for the machine tool, is installed above an X-axis moving platform (17) of the machine tool and is fixedly connected with a rotary shaft (18) of the machine tool;
the limit stop block (9) is arranged at the other end of the auxiliary pipe supporting jig for the machine tool, is arranged above an X-axis moving platform (17) of the machine tool, and is fixedly connected with a two-dimensional adjusting seat (22) of the machine tool;
the guide shaft (10) is connected between the rotary shaft end fixing plate (1) and the limit stop (9) along the X-axis direction of the machine tool, and two ends of the guide shaft are respectively fixedly connected with the rotary shaft end fixing plate (1) and the limit stop (9);
the linear bearing (8) is connected to the guide shaft (10), arranged between the rotary shaft end fixing plate (1) and the limit stop (9) and capable of moving along the guide shaft (10);
the X-axis end fixing plate (11) is fixedly connected with the linear bearing (8), arranged at the rear end of an X-axis motion platform (17) of the machine tool and synchronously moves with the linear bearing (8);
the sliding block fixing seat (15) is connected to the guide shaft (10), arranged between the rotary shaft end fixing plate (1) and the X shaft end fixing plate (11) and capable of moving along the guide shaft (10);
the sliding blocks comprise a plurality of sliding blocks which are arranged between the sliding block fixing seat (15) and the X shaft end fixing plate (11) along the guide shaft (10), and each sliding block can move along the guide shaft (10);
the supporting shaft sleeves (2) are respectively arranged at the tops of the sliding blocks, and each supporting shaft sleeve (2) is respectively provided with a supporting hole which is arranged along the axial direction of the guide shaft (10) and is used for a workpiece (20) to penetrate through;
the workpiece penetrates through the supporting shaft sleeves (2) arranged at the tops of the sliding blocks in sequence along the guide shaft (10), and is lifted between a spring chuck (19) and a bush (21) of the machine tool through the supporting holes of the supporting shaft sleeves (2).
2. The auxiliary pipe supporting jig for the machine tool as set forth in claim 1, characterized in that an adjusting screw (4) is further connected between the slide block and the supporting shaft sleeve (2), the adjusting screw (4) rotates on the slide block, the supporting shaft sleeve (2) moves inside the slide block along with the rotation of the adjusting screw (4), and the supporting hole is adjusted to move to a position coaxial with the workpiece (20).
3. The auxiliary pipe supporting jig for the machine tool according to claim 2, wherein the adjusting screws (4) comprise a first adjusting screw vertically arranged above the top of the sliding block and a second adjusting screw horizontally arranged on the side edge of the top of the sliding block, the first adjusting screw and the second adjusting screw are respectively connected to the top and the side portion of the supporting shaft sleeve (2), the first adjusting screw rotates above the top of the sliding block to drive the supporting shaft sleeve (2) to vertically move up and down along the sliding block, and the second adjusting screw rotates on the side edge of the top of the sliding block to drive the supporting shaft sleeve (2) to horizontally move back and forth along the sliding block.
4. The auxiliary supporting jig for the tubular product for the machine tool according to claims 1 to 3, wherein the slide block comprises a first slide block (3), a second slide block (5), a third slide block (6) and a fourth slide block (7) which are sequentially arranged between the slide block fixing seat (15) and the X-axis end fixing plate (11) along the guide shaft (10), wherein the front end of the bottom of the first slide block (3) is fixedly connected with the slide block fixing seat (15), and the fourth slide block (7) is fixedly connected with the X-axis end fixing plate (11); and movable connecting rods (14) are respectively connected among the first sliding block (3), the second sliding block (5), the third sliding block (6) and the fourth sliding block (7), and the movable connecting rods (14) are supported among the first sliding block (3), the second sliding block (5), the third sliding block (6) and the fourth sliding block (7) and drive the first sliding block (3), the second sliding block (5), the third sliding block (6) and the fourth sliding block (7) to be uniformly distributed between the sliding block fixing seat (15) and the X shaft end fixing plate (11) along the guide shaft (10) along with the forward and backward movement of the sliding block fixing seat (15).
5. The auxiliary support jig for tubular products for machine tools according to claims 1 to 4, characterized in that the movable connecting rod (14) comprises:
the front end of the first movable connecting rod is connected with the bottom of the first sliding block (3), and the rear end of the first movable connecting rod is connected with the middle part of the second sliding block (5);
the front end of the second movable connecting rod is connected with the middle part of the first sliding block (3), and the rear end of the second movable connecting rod is connected with the bottom of the second sliding block (5);
the front end of the third movable connecting rod is connected with the bottom of the second sliding block (5), and the rear end of the third movable connecting rod is connected with the middle part of the third sliding block (6);
the front end of the fourth movable connecting rod is connected with the middle part of the second sliding block (5), and the rear end of the fourth movable connecting rod is connected with the bottom of the third sliding block (6);
the front end of the fifth movable connecting rod is connected with the bottom of the third sliding block (6), and the rear end of the fifth movable connecting rod is connected with the middle part of the fourth sliding block (7);
the front end of the sixth movable connecting rod is connected with the middle part of the third sliding block (6), and the rear end of the sixth movable connecting rod is connected with the bottom of the fourth sliding block (7).
6. The auxiliary support jig for the pipe material for the machine tool according to the claims 1 to 4, wherein the slider fixing seat (15) is further provided with a fixing hole, a screw passes through the fixing hole, and the slider fixing seat (15) and the guide shaft (10) are fixedly connected to limit the slider fixing seat (15) from moving along the guide shaft (10).
7. The auxiliary supporting jig for the pipe for the machine tool according to the claims 1 to 4, characterized by further comprising a position fixing block (12), wherein the front end of the position fixing block (12) is fixedly connected with the fourth sliding block (7), and the rear end of the position fixing block (12) is fixedly connected with the X shaft end fixing plate (11).
8. A machine tool is characterized in that the machine tool is provided with the pipe auxiliary supporting jig for the machine tool according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010296601.7A CN111331397A (en) | 2020-04-15 | 2020-04-15 | Tubular product auxiliary stay tool and lathe for lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010296601.7A CN111331397A (en) | 2020-04-15 | 2020-04-15 | Tubular product auxiliary stay tool and lathe for lathe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111331397A true CN111331397A (en) | 2020-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010296601.7A Pending CN111331397A (en) | 2020-04-15 | 2020-04-15 | Tubular product auxiliary stay tool and lathe for lathe |
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| Country | Link |
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| CN (1) | CN111331397A (en) |
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| CN112338599A (en) * | 2020-11-24 | 2021-02-09 | 安徽机电职业技术学院 | Fixture for milling machine to process key grooves of shaft parts |
| CN114227827A (en) * | 2021-12-28 | 2022-03-25 | 宿州市飞新家具有限公司 | Timber cutting machine for furniture production with prevent excursion function |
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