CN116329988A

CN116329988A - Stainless steel tube machining chuck machine

Info

Publication number: CN116329988A
Application number: CN202310615729.9A
Authority: CN
Inventors: 项益朋
Original assignee: Jiangsu Longyue Stainless Steel Pipe Industry Co ltd
Current assignee: Jiangsu Longyue Stainless Steel Pipe Industry Co ltd
Priority date: 2023-05-29
Filing date: 2023-05-29
Publication date: 2023-06-27
Anticipated expiration: 2043-05-29
Also published as: CN116329988B

Abstract

The invention belongs to the field of stainless steel tube machining, in particular to a stainless steel tube machining chuck machine, which comprises a rear seat cover, wherein the front end of the rear seat cover is fixedly connected with a front cover, the middle part of the front end of the front cover is provided with round holes penetrating to the rear end, the outer surface of the front cover is provided with three groups of clamping grooves which are annularly and equidistantly arranged, the inner sides of the clamping grooves are slidably clamped with an outer clamping seat, the center of the inner side of the rear seat cover is provided with an inner sleeve rod, the front end of the inner sleeve rod penetrates through the round holes of the front cover, the inner sleeve rod is in a cylindrical shape, and the inner sleeve rod consists of three split rods with equal volumes.

Description

Stainless steel tube machining chuck machine

Technical Field

The invention belongs to the field of stainless steel tube machining, and particularly relates to a stainless steel tube machining chuck machine.

Background

Stainless steel pipe is a hollow long strip round steel material, which is widely used for industrial conveying pipelines and mechanical structural parts such as petroleum, chemical industry, medical treatment, food, light industry, mechanical instrument and the like, and is also widely used for manufacturing mechanical parts and engineering structures because the weight is light when the bending and torsional strength are the same. It is also commonly used as a furniture kitchen ware and the like.

The chuck is called an elastic chuck or a collet chuck, is a cylindrical clamp which is arranged on a milling machine and is used for confining a drill bit or fixing a milling cutter, and can be used for fixing a part to be processed; in order to ensure the stability of the machining process, a clamping head is required to fix the stainless steel tube.

The existing stainless steel pipe clamping head equipment is used for clamping the outer side of a stainless steel pipe, the stainless steel pipe is hollow, deformation and sinking of the front end of a pipeline are easy to occur if the applied force is too strong, and the stainless steel pipe is unstable in the machining process if the applied force is too weak.

To this end, the invention provides a stainless steel tube machining chuck machine.

Disclosure of Invention

In order to overcome the deficiencies of the prior art, at least one technical problem presented in the background art is solved.

The technical scheme adopted for solving the technical problems is as follows: the invention discloses a stainless steel tube machining chuck machine, which comprises a backseat cover, wherein the front end of the backseat cover is fixedly connected with a front cover, the middle part of the front end of the front cover is provided with round holes penetrating to the rear end, the outer surface of the front cover is provided with three groups of clamping grooves which are annularly and equidistantly arranged, the inner sides of the clamping grooves are slidably clamped with outer clamping seats, the center position of the inner side of the backseat cover is provided with an inner sleeve rod, the front end of the inner sleeve rod penetrates through the round holes of the front cover, the inner sleeve rod is in a cylindrical shape, the inner sleeve rod consists of three split rods with equal volumes, the outer clamping seats and the outer sides of the split rods are respectively provided with a first power component and a second power component, the first power component and the second power component are respectively used for driving the outer clamping seats and the split rods to move, when a stainless steel tube is fixed, the stainless steel tube can be sleeved on the outer sides of the inner sleeve rod, the three split rods are outwards spread through the second power component, and accordingly the inner wall of the stainless steel tube is inwards and outwards pressed against the inner wall of the assembly, and the outer side of the stainless steel tube is uniformly clamped by the three split clamps, and simultaneously, the inner side and the outer side of the stainless steel tube is greatly stressed and the stainless steel tube is firmly stressed, and the outer side is greatly stressed and stressed by the stainless steel tube is simultaneously.

Preferably, the first power component comprises an outer disc, the outer disc is rotationally connected with the inner side of the front cover, a threaded block is fixedly connected to the outer side of the outer disc, which is close to the front cover, a transmission groove 0 which is matched with the threaded block is formed in one side of the outer clamping seat, which is close to the outer disc, a plurality of transmission teeth are fixedly connected to one side of the outer disc, which is far away from the threaded block, a plurality of first auxiliary gears and a driving gear are arranged on the inner side of the rear cover, the first auxiliary gears and the driving gear are both in transmission connection with the outer disc through the transmission teeth, a driving groove is formed in the outer side of the rear cover, the outer side of the driving gear is positioned in the driving groove, a tool is used outside to penetrate the driving groove and is combined with the driving gear, the outer disc can be driven to rotate under the connection of the transmission teeth along with the rotation of the driving gear, the cooperation of the threaded block and the transmission groove can drive the three outer clamping seats to simultaneously gather together or simultaneously far away from the transmission teeth, the effect of driving the outer clamping seat is achieved, and the first auxiliary gears are used for stabilizing the rotation process of the outer disc.

Preferably, the second power assembly comprises an inner disc, the inner disc is identical to the outer disc in structure, the inner disc and the outer disc are symmetrically arranged, the inner disc is rotationally connected with the inside of the backseat cover, the outer side of the driving gear is rotationally connected with a sliding seat by the top end, the inner side of the driving groove is fixedly connected with two limiting rods, the limiting rods penetrate through the sliding seat, the rear end of the splitting rod is fixedly connected with a driving arm which is vertically arranged with the splitting rod, the driving arm is meshed with the rear end of the inner disc, the sliding seat is pushed towards the inner disc to drive the driving gear to be connected with the inner disc, a gap between the inner disc and the outer disc is enough for the driving gear to rotate, the driving gear is convenient to finely adjust, after the driving gear is attached to the inner disc, the inner disc can be driven to rotate along with the rotation of the driving gear, and further the driving arm and the splitting rod are driven to be unfolded and gathered, the driving effect is achieved, the inner disc and the outer disc shares a main driving source, the size of the device is reduced, and the practicality of the device is improved.

Preferably, three firm grooves have been seted up to the front end of protecgulum, and is three firm groove is located the gap of three draw-in groove respectively, the outside rigid coupling of division pole has the cardboard, cardboard and firm groove sliding connection, the cooperation of firm groove and cardboard for the inner loop pole is after splitting, and solitary division pole can be restricted by the cardboard, can not rock at the removal in-process, has guaranteed the stability of fixed in-process division pole.

Preferably, the through hole that runs through to the opposite side has been seted up to three outer holder's opposite one side, sliding connection has the depression bar in the through hole, the one end rigid coupling that the front cover was kept away from to the depression bar has the instruction piece, the outside of instructing the piece is provided with the display cover, the display cover rigid coupling is in the outside of outer holder, the display cover is transparent glass material, and the surface of display cover is uneven, rigid coupling has spring one between depression bar and the outer holder, through this kind of setting, has realized comparatively accurate suggestion effect, need not the operator to have very high skill, also can accurate operation equipment, and the setting of pure mechanical structure compares electronic equipment, and the fault rate is lower.

Preferably, the inner side sliding connection of outer holder has a plurality of switching seats, switching seat is perpendicular setting with the depression bar, two butt joint holes that are parallel arrangement have been seted up to one side of switching seat, the depression bar passes one of them butt joint hole, is provided with the elastic component in another butt joint hole, the depression bar is the segmentation setting, through the setting of switching seat, because the depression bar is the segmentation setting, when the switching seat slides, will be propped up the temporary vacancy with the depression bar of another butt joint hole to the direction of depression bar, and the elastic component in another butt joint hole can replace a part of depression bar to increase the elastic potential energy when whole depression bar removes, through this kind of setting, realized swift change depression bar elastic potential energy's effect, make the equipment more convenient that can use.

Preferably, the depression bar comprises a plurality of concatenation pieces, and the concatenation piece comprises release lever and butt joint pole, and the release lever is located the butt joint hole, release lever and butt joint pole slip joint, through the structure setting of depression bar, when the depression bar is not extrudeed, under the effect of spring one, the depression bar is in the protrusion state, and all release levers are in the butt joint hole of switching the seat this moment, therefore switch the seat and can normally slide to ejecting the release lever to replace with the elastic component in another butt joint hole, also can pull back the release lever of script, and then realized the replacement function.

Preferably, the elastic piece comprises a butt joint block, the butt joint block is identical with the separating rod in structure, a spring II is sleeved on the outer side of the butt joint block, one end of a display cover is far away from the spring II and fixedly connected with the outer side of the butt joint block, a plurality of baffle rings are arranged on the outer side of the pressing rod and fixedly connected with an outer clamping seat, the baffle rings are located on the outer side of the butt joint rod, when the butt joint block is pulled to be in butt joint with the pressing rod, the pressing rod is extruded, and the spring II contacts with the baffle rings along with the movement of the pressing rod, and the elastic potential energy of the whole pressing rod is improved due to the fact that the spring II is increased, the normal sliding process of the pressing rod is not influenced, and the effect of improving the elastic potential energy of the pressing rod after switching is achieved.

Preferably, the outside of release lever and butt joint piece all rigid coupling has two slide bars, the inner wall sliding connection of slide bar and butt joint hole, cooperation slide bar's setting, with release lever and butt joint piece restriction in the middle part of butt joint hole, guaranteed before the switching process back, whole depression bar all is in sharp state, can not cause the problem of concatenation skew.

Preferably, the locating blocks are fixedly connected at two ends of the switching seat, round holes are formed in the bottoms of the locating blocks, a plurality of locking rods matched with the locating blocks are fixedly connected at the outer sides of the outer clamping seat, the locking rods are located below the switching seat, the outer sides of the locking rods are slidably connected with the outer sides of the outer clamping seat, after switching is finished, the locking rods are abutted with the locating blocks at the outer sides of the switching seat through upward movement of the locking rods so as to fix the locking rods, and the integrity of the compression bar after switching is further guaranteed.

The beneficial effects of the invention are as follows: 1. according to the stainless steel tube machining chuck machine, the outer clamping seat and the inner sleeve rod are arranged, when the stainless steel tube is fixed, the stainless steel tube can be sleeved on the outer side of the inner sleeve rod, the power assembly II enables the three split rods to be outwards unfolded, so that the inner wall of the stainless steel tube is propped against from inside to outside, and then the power assembly I enables the three outer clamping seats to be inwards gathered and clamp the outer side of the stainless steel tube.

2. According to the stainless steel tube machining chuck machine, the tool passes through the driving groove outside and is combined with the driving gear, the outer disc can be driven to rotate along with the rotation of the driving gear and under the connection of the transmission gear, and the three outer clamping seats can be driven to simultaneously gather or simultaneously move away from each other by matching with the threaded blocks and the transmission groove, so that the effect of driving the outer clamping seats is achieved, and the first auxiliary gear is used for stabilizing the rotation process of the outer disc.

Drawings

The invention is further described below with reference to the accompanying drawings.

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a schematic diagram of the structure of the present invention;

FIG. 3 is a perspective view of an outer holder of the present invention;

FIG. 4 is a cross-sectional view of an outer holder of the present invention;

FIG. 5 is a perspective view of a switch seat and a plunger according to the present invention;

FIG. 6 is an expanded perspective view of the plunger of the present invention;

FIG. 7 is a perspective view of the inner and outer discs of the present invention;

FIG. 8 is a perspective view of the inner disc of the present invention;

in the figure: 1. a backseat cover; 2. a driving groove; 3. a front cover; 4. an outer holder; 5. an inner disk; 6. an outer disk; 7. a stabilizing groove; 8. a clamping groove; 9. a compression bar; 11. a switching seat; 12. a locking lever; 13. a first spring; 15. a display cover; 16. a baffle ring; 17. a butt joint hole; 18. a butt joint block; 19. a separation rod; 20. a slide bar; 21. a second spring; 22. a slide; 23. a limit rod; 24. a clamping plate; 25. an inner loop bar; 26. a transmission arm; 27. an auxiliary gear I; 28. a drive gear; 29. a butt joint rod; 30. a transmission groove; 31. a screw block; 32. and a driving gear.

Detailed Description

The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.

Embodiment one: as shown in fig. 1, 2, 7 and 8, the stainless steel tube machining chuck machine according to the embodiment of the invention comprises a rear seat cover 1, a front cover 3 is fixedly connected at the front end of the rear seat cover 1, round holes penetrating through the rear end are formed in the middle of the front end of the front cover 3, three groups of annular equidistant clamping grooves 8 are formed in the outer surface of the front cover 3, an outer clamping seat 4 is slidably clamped at the inner side of the clamping groove 8, an inner sleeve rod 25 is arranged at the center of the inner side of the rear seat cover 1, the front end of the inner sleeve rod 25 penetrates through the round holes of the front cover 3, the inner sleeve rod 25 is in a cylindrical shape, the inner sleeve rod 25 consists of three split rods with equal volumes, a first power assembly and a second power assembly are arranged at the outer parts of the outer clamping seat 4 and the split rods, the first power assembly and the second power assembly are respectively used for driving the outer clamping seat 4 and the split rods to move during operation, the existing stainless steel pipe clamping device is generally used for fixedly clamping the outer side of a stainless steel pipe, but the stainless steel pipe is hollow, if the applied force is too strong, the deformation and depression of the front end of a pipeline are easily caused, if the applied force is too weak, the stainless steel pipe is fixed in the machining process, when the stainless steel pipe is fixed, the stainless steel pipe can be sleeved on the outer side of the inner sleeve rod 25 firstly through the arrangement of the outer clamping seat 4 and the inner sleeve rod 25, the three split rods are outwards unfolded through the power assembly II, so that the inner wall of the stainless steel pipe is propped against from inside to outside, and then the three outer clamping seats 4 are inwards gathered through the power assembly I, the stainless steel pipe is clamped outside, through the arrangement, the function of simultaneously fixing the stainless steel pipe inside and outside is realized, the pipe body can be more firmly clamped, the stability of the machining process of the pipe body is ensured, and simultaneously because the inside and outside are simultaneously pressed, compared with the independent application of the outer side, the force distribution is more uniform, and the problem that the pipeline is excessively pressed to cause deformation is greatly reduced.

As shown in fig. 7 to 8, the first power component includes an outer disc 6, the outer disc 6 is rotationally connected with the inner side of the front cover 3, a threaded block 31 is fixedly connected with the outer side of the outer disc 6, a transmission groove 30 adapted to the threaded block 31 is formed on one side of the outer clamping seat 4, which is close to the outer disc 6, a plurality of transmission teeth 32 are fixedly connected on one side of the outer disc 6, which is far away from the threaded block 31, a plurality of auxiliary gears 27 and a driving gear 28 are arranged on the inner side of the rear seat cover 1, the auxiliary gears 27 and the driving gear 28 are all in transmission connection with the outer disc 6 through the transmission teeth 32, a driving groove 2 is formed on the outer side of the rear seat cover 1, the outer side of the driving gear 28 is located in the driving groove 2, during operation, a tool is used outside to penetrate through the driving groove 2 and is combined with the driving gear 28, the outer disc 6 can be driven to rotate under the connection of the transmission teeth 32 along with the rotation of the driving gear 28, the cooperation of the threaded block 31 and the transmission groove 30, and then three outer clamping seats 4 can be driven to simultaneously or simultaneously move, and the auxiliary gears 4 are further driven to move, and the outer clamping seat 4 is further firmly and the outer clamping seat is firmly arranged.

As shown in fig. 7 to 8, the second power assembly includes an inner disc 5, the structure of the inner disc 5 is identical to that of the outer disc 6, the inner disc 5 and the outer disc 6 are symmetrically arranged, the inner disc 5 is rotationally connected with the inside of the backseat cover 1, the outer side of the driving gear 28 is rotationally connected with the sliding seat 22 near the top end, the inner side of the driving slot 2 is fixedly connected with two limiting rods 23, the limiting rods 23 penetrate through the sliding seat 22, the rear ends of the splitting rods are fixedly connected with driving arms 26 which are vertically arranged with the splitting rods, the driving arms 26 are meshed with the rear ends of the inner disc 5, and in operation, the sliding seat 22 is pushed towards the inner disc 5 to drive the driving gear 28 to be connected with the inner disc 5, and a gap between the inner disc 5 and the outer disc 6 is enough for the driving gear 28 to rotate, so that the driving gear 28 is convenient to finely adjust.

As shown in fig. 2 and 8, three stable grooves 7 are formed in the front end of the front cover 3, three stable grooves 7 are respectively located in gaps of three clamping grooves 8, clamping plates 24 are fixedly connected to the outer sides of the splitting rods, the clamping plates 24 are slidably connected with the stable grooves 7, and when in operation, the stable grooves 7 and the clamping plates 24 are matched, so that after splitting, the inner sleeve rod 25 is limited by the clamping plates 24, the independent splitting rods cannot shake in the moving process, and stability of the splitting rods in the fixing process is guaranteed.

As shown in fig. 3 to 5, a through hole penetrating to the other side is formed on the opposite side of the three outer clamping bases 4, a pressing rod 9 is slidably connected in the through hole, an indicating block is fixedly connected to one end of the pressing rod 9 away from the center of the front cover 3, a display cover 15 is arranged on the outer side of the indicating block, the display cover 15 is fixedly connected to the outer side of the outer clamping bases 4, the display cover 15 is made of transparent glass, the outer surface of the display cover 15 is uneven, a spring I13 is fixedly connected between the pressing rod 9 and the outer clamping bases 4, in order to further ensure proper clamping force of the outer clamping bases 4 when fixing a steel pipe during working, when the steel pipe is not clamped by the outer clamping bases 4 through the arrangement of the pressing rod 9, the pressing rod 9 is in an outwards protruding state, after the steel pipe is locked by an inner sleeve rod 25, the pressing rod 9 contacts the steel pipe along with the outer clamping bases 4 and the pressing rod 9, the pressing rod 9 moves backwards under the extrusion force, the indication block at the rear end of the compression bar 9 is contacted with the display cover 15 made of transparent materials, the indication block before the display cover 15 is not attached can not be observed due to uneven surface of the display cover 15, the indication block is smeared with indication pigment, only when the indication block is completely attached to the display cover 15, indication can be seen, the arrangement of the spring I13 is matched, the spring I13 provides proper elastic potential energy for the compression bar 9, the elastic potential energy compressed by the spring I13 is slightly lower than the deformation resistance of the steel pipe, when the indication block is completely attached to the display cover 15, the compression bar 9 is flush with the surface of the outer clamping seat 4, the whole outer clamping seat 4 is attached to the outer wall of the steel pipe for fixation, an operator stops adjusting at the moment, the steel pipe can be just firmly fixed, and deformation of the steel pipe can not be caused at the same time, through the arrangement, a relatively accurate indication effect is realized, no special high skill is required for the operator, the equipment can be accurately operated, and compared with electronic equipment, the equipment is lower in failure rate due to the arrangement of a pure mechanical structure.

As shown in fig. 3 to 6, the inner side of the outer clamping seat 4 is slidably connected with a plurality of switching seats 11, the switching seats 11 are vertically arranged with the pressing rods 9, two butt joint holes 17 which are arranged in parallel are formed in one side of the switching seats 11, the pressing rods 9 penetrate through one of the butt joint holes 17, elastic pieces are arranged in the other butt joint holes 17, the pressing rods 9 are arranged in a segmented mode, and in order to adapt to steel pipes of various types, the springs 13 are required to be replaced with springs with different elastic potential energies when corresponding to different steel pipes, but the replacement process is troublesome, and due to the arrangement of the switching seats 11, the pressing rods 9 arranged in a segmented mode are pushed away to form temporary gaps when the other butt joint holes 17 slide towards the pressing rods 9, and the elastic pieces in the other butt joint holes 17 replace part of the pressing rods 9, so that the elasticity of the whole pressing rods 9 can be increased when moving.

As shown in fig. 3 to 6, the compression bar 9 is composed of a plurality of splicing blocks, the splicing blocks are composed of a separation bar 19 and a butt joint bar 29, the separation bar 19 is located in the butt joint hole 17, the separation bar 19 and the butt joint bar 29 are in sliding clamping connection, in operation, through the structural arrangement of the compression bar 9, when the compression bar 9 is not extruded, under the action of the first spring 13, the compression bar 9 is in a protruding state, at the moment, all the separation bars 19 are located in the butt joint hole 17 of the switching seat 11, so that the switching seat 11 can slide normally, the separation bar 19 is ejected out and replaced with an elastic piece in the other butt joint hole 17, and the original separation bar 19 can be pulled back, thereby realizing the replacement function.

As shown in fig. 3 to 6, the elastic member includes a butt joint block 18, the butt joint block 18 has the same structure as the separating rod 19, the outer side of the butt joint block 18 is sleeved with a second spring 21, one end of the second spring 21, which is far away from the display cover 15, is fixedly connected with the outer side of the butt joint block 18, a plurality of baffle rings 16 are arranged on the outer side of the press rod 9, the baffle rings 16 are fixedly connected with the outer clamping seat 4, the baffle rings 16 are positioned on the outer side of the butt joint rod 29, when the butt joint block 18 is pulled to butt joint with the press rod 9, and when the press rod 9 is extruded, the second spring 21 contacts with the baffle rings 16 along with the movement of the press rod 9, and the elastic potential energy of the whole press rod 9 is improved due to the increase of the second spring 21, and meanwhile, the normal sliding process of the press rod 9 is not influenced, and the effect of improving the elastic potential energy of the press rod 9 after the switching is realized; the length of the butt joint block 18 is longer than that of the butt joint hole 17, and two ends of the butt joint block 18 extend out of two ends of the butt joint hole 17, so that the butt joint block 18 can be switched with the separating rod 19 in the pressure rod 9 in the sliding process of the switching seat 11.

As shown in fig. 3 to 6, two slide bars 20 are fixedly connected to the outer sides of the separating rod 19 and the butt joint block 18, the slide bars 20 are slidably connected with the inner wall of the butt joint hole 17, and in operation, the separating rod 19 and the butt joint block 18 are limited in the middle of the butt joint hole 17 in cooperation with the arrangement of the slide bars 20, so that the whole compression bar 9 is in a straight line state before and after the switching process, and the problem of splicing offset is avoided.

Embodiment two: as shown in fig. 3 to 4, a comparative example one, in which another embodiment of the present invention is: the both ends of switch seat 11 all rigid coupling has the locating piece, the round hole has been seted up to the bottom of locating piece, the outside rigid coupling of outer cassette 4 has a plurality of locking bars 12 with locating piece looks adaptation, locking bar 12 is located the below of switch seat 11, the outside of locking bar 12 and the outside sliding connection of outer cassette 4, during operation, in order to guaranteed the stability after switching, through the upward movement of locking bar 12, dock locking bar 12 with the locating piece outside switch seat 11 to can fix locking bar 12, further guaranteed the wholeness of depression bar 9 after the switching is accomplished.

During operation, through the arrangement of the outer clamping seat 4 and the inner sleeve rod 25, when the stainless steel pipe is fixed, the stainless steel pipe can be sleeved on the outer side of the inner sleeve rod 25, the three split rods are outwards unfolded through the second power component, so that the inner wall of the stainless steel pipe is propped against from inside to outside, and then the three outer clamping seats 4 are inwards gathered through the first power component and clamp the outer side of the stainless steel pipe; the tool is used outside to pass through the driving groove 2 and is combined with the driving gear 28, the driving gear 28 rotates, the outer disc 6 can be driven to rotate under the connection of the transmission gear 32, and the three outer clamping seats 4 can be driven to simultaneously gather together or simultaneously move away from each other by matching with the threaded block 31 and the transmission groove 30, so that the effect of driving the outer clamping seats 4 is realized, and the auxiliary gear 27 is used for stabilizing the rotation process of the outer disc 6; the sliding seat 22 is pushed towards the inner disc 5, so that the driving gear 28 is in transmission connection with the inner disc 5, a gap between the inner disc 5 and the outer disc 6 is enough for the driving gear 28 to rotate, fine adjustment of the driving gear 28 is facilitated, after the driving gear 28 is attached to the inner disc 5, the inner disc 5 can be driven to rotate along with rotation of the driving gear 28, and further the driving arm 26 and the splitting rod are driven to unfold and gather; the cooperation of the stabilizing groove 7 and the clamping plate 24 ensures that after the inner sleeve rod 25 is split, the independent split rod can be limited by the clamping plate 24 and cannot shake in the moving process, so that the stability of the split rod in the fixing process is ensured; in order to further ensure that the clamping force of the outer clamping seat 4 is proper when fixing the steel pipe, through the arrangement of the pressure rod 9, when the outer clamping seat 4 does not clamp the steel pipe, the pressure rod 9 is in an outward convex state, after the inner sleeve rod 25 locks the steel pipe, along with the contact of the outer clamping seat 4 and the pressure rod 9 with the steel pipe, the pressure rod 9 can move backwards under the extrusion force, so that an indication block at the rear end of the pressure rod 9 is in contact with a display cover 15 made of transparent materials, the indication block which is not attached to the display cover 15 can not be observed due to the uneven surface of the display cover 15, the indication pigment is smeared on the outer surface of the indication block, the indication block can be seen only when the indication block is completely attached to the display cover 15, the indication block is matched with the arrangement of the spring I13, the spring I13 provides an appropriate elastic potential energy, the elastic potential energy compressed by the spring I is slightly lower than the deformation resistance force of the steel pipe, when the indication block is completely attached to the display cover 15, and the pressure rod 9 is flush with the surface of the outer clamping seat 4 at the moment, the whole outer clamping seat 4 is attached to the outer wall of the steel pipe for fixing, an operator can just fix the steel pipe, and meanwhile, the indication pigment can not be caused; in order to adapt to various types of steel pipes, the first spring 13 needs to be replaced by a spring with different elastic potential energy when coping with different steel pipes, but the replacement process is troublesome, and due to the arrangement of the switching seat 11, the effect of rapidly changing the elastic potential energy of the pressing rod 9 is realized by the arrangement of the switching seat 11, when the other butt joint hole 17 slides towards the pressing rod 9, the pressing rod 9 which is arranged in a segmented manner is jacked up to be temporarily vacant, and the elastic piece in the other butt joint hole 17 can replace part of the pressing rod 9, so that the elastic potential energy of the whole pressing rod 9 during movement is increased; through the structural arrangement of the pressure lever 9, when the pressure lever 9 is not extruded, under the action of the first spring 13, the pressure lever 9 is in a protruding state, and all the separating rods 19 are positioned in the butt joint holes 17 of the switching seat 11 at the moment, so that the switching seat 11 can normally slide, the separating rods 19 are ejected and replaced with elastic pieces in the other butt joint holes 17, and the original separating rods 19 can be pulled back, so that the replacement function is realized; when the butt joint block 18 is pulled to butt joint with the compression bar 9 and the compression bar 9 is extruded, the second spring 21 contacts with the baffle ring 16 along with the movement of the compression bar 9, and the elastic potential energy of the whole compression bar 9 is improved due to the addition of the second spring 21, and meanwhile the normal sliding process of the compression bar 9 is not influenced, so that the effect of improving the elastic potential energy of the compression bar 9 after switching is realized; the setting of cooperation slide bar 20 restricts separating rod 19 and butt joint piece 18 in the middle part of butt joint hole 17, has guaranteed before the switching process after, and whole depression bar 9 is in sharp state, can not cause the problem of concatenation skew.

The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a stainless steel tube machining chuck machine which characterized in that: including backseat cover (1), the front end rigid coupling of backseat cover (1) has protecgulum (3), the round hole that runs through to the rear end has been seted up at the front end middle part of protecgulum (3), three group is draw-in groove (8) that annular equidistance was arranged are seted up to the surface of protecgulum (3), the inboard slip joint of draw-in groove (8) has outer holder (4), the inboard central point of backseat cover (1) puts and is provided with interior loop bar (25), the round hole of protecgulum (3) is passed to the front end of interior loop bar (25), interior loop bar (25) are cylindrical setting, interior loop bar (25) are by the equal split lever of three volumes, the outside of outer holder (4) and split lever is provided with power pack one and power pack two, power pack one and power pack two are used for driving outer holder (4) and split lever respectively and move.

2. A stainless steel tube machining chuck machine as set forth in claim 1, wherein: the power assembly comprises an outer disc (6), the outer disc (6) is rotationally connected with the inner side of a front cover (3), a threaded block (31) is fixedly connected to the outer side of the outer disc (6) close to the front cover (3), a transmission groove (30) matched with the threaded block (31) is formed in one side of the outer disc (4) close to the outer disc (6), a plurality of transmission teeth (32) are fixedly connected to one side of the outer disc (6) away from the threaded block (31), a plurality of auxiliary gears (27) and a driving gear (28) are arranged on the inner side of a rear seat cover (1), the auxiliary gears (27) and the driving gear (28) are in transmission connection with the outer disc (6) through the transmission teeth (32), a driving groove (2) is formed in the outer side of the rear seat cover (1), and the outer side of the driving gear (28) is located in the driving groove (2).

3. A stainless steel tube machining chuck machine as set forth in claim 2 wherein: the second power assembly comprises an inner disc (5), the structure of the inner disc (5) is identical to that of an outer disc (6), the inner disc (5) and the outer disc (6) are symmetrically arranged, the inner disc (5) is rotationally connected with the inside of the backseat cover (1), the outer side of the driving gear (28) is rotationally connected with a sliding seat (22) by the top end, the inner side of the driving groove (2) is fixedly connected with two limiting rods (23), the limiting rods (23) penetrate through the sliding seat (22), the rear ends of the splitting rods are fixedly connected with transmission arms (26) which are vertically arranged with the splitting rods, and the transmission arms (26) are meshed with the rear ends of the inner disc (5).

4. A stainless steel tube machining chuck machine according to claim 3, wherein: three stable grooves (7) are formed in the front end of the front cover (3), the three stable grooves (7) are respectively located in gaps of the three clamping grooves (8), clamping plates (24) are fixedly connected to the outer sides of the splitting rods, and the clamping plates (24) are in sliding connection with the stable grooves (7).

5. A stainless steel tube machining chuck machine as set forth in claim 1, wherein: the opposite one side of three outer holder (4) has been seted up and has been run through to the through-hole of opposite side, sliding connection has depression bar (9) in the through-hole, the one end rigid coupling that protecgulum (3) center was kept away from to depression bar (9) has the instruction piece, the outside of instructing the piece is provided with display cover (15), display cover (15) rigid coupling is in the outside of outer holder (4), display cover (15) are transparent glass material, and display cover (15)'s surface is uneven, rigid coupling has spring one (13) between depression bar (9) and the outer holder (4).

6. A stainless steel tube machining chuck machine according to claim 5, wherein: the inside sliding connection of outer holder (4) has a plurality of switching seat (11), switching seat (11) are perpendicular setting with depression bar (9), two butt joint hole (17) that are parallel arrangement have been seted up to one side of switching seat (11), depression bar (9) pass one of them butt joint hole (17), are provided with the elastic component in another butt joint hole (17), depression bar (9) are the segmentation setting.

7. A stainless steel tube machining chuck machine as set forth in claim 6, wherein: the compression bar (9) comprises a plurality of splicing blocks, each splicing block comprises a separation bar (19) and a butt joint bar (29), the separation bar (19) is located in the butt joint hole (17), and the separation bar (19) is in sliding clamping connection with the butt joint bar (29).

8. A stainless steel tube machining chuck machine as set forth in claim 7, wherein: the elastic piece comprises a butt joint block (18), the butt joint block (18) and the separating rod (19) are identical in structure, a second spring (21) is sleeved on the outer side of the butt joint block (18), one end, far away from the display cover (15), of the second spring (21) is fixedly connected with the outer side of the butt joint block (18), a plurality of baffle rings (16) are arranged on the outer side of the pressing rod (9), the baffle rings (16) are fixedly connected with the outer clamping seat (4), and the baffle rings (16) are located on the outer side of the butt joint rod (29).

9. A stainless steel tube machining chuck machine as set forth in claim 8, wherein: two sliding rods (20) are fixedly connected to the outer sides of the separating rod (19) and the butt joint block (18), and the sliding rods (20) are slidably connected with the inner wall of the butt joint hole (17).

10. A stainless steel tube machining chuck machine as set forth in claim 9 wherein: the two ends of the switching seat (11) are fixedly connected with positioning blocks, round holes are formed in the bottoms of the positioning blocks, a plurality of locking rods (12) matched with the positioning blocks are fixedly connected to the outer sides of the outer clamping seats (4), the locking rods (12) are located below the switching seat (11), and the outer sides of the locking rods (12) are in sliding connection with the outer sides of the outer clamping seats (4).