CN210676394U

CN210676394U - Chuck machine of nonrust steel pipe

Info

Publication number: CN210676394U
Application number: CN201921135775.4U
Authority: CN
Inventors: 付晓辉
Original assignee: HUZHOU GAOLIN STAINLESS STEEL TUBE MANUFACTURE CO LTD
Current assignee: HUZHOU GAOLIN STAINLESS STEEL TUBE MANUFACTURE CO LTD
Priority date: 2019-07-18
Filing date: 2019-07-18
Publication date: 2020-06-05
Anticipated expiration: 2029-07-18

Abstract

The utility model relates to a nonrust steel pipe machining auxiliary device's technical field specifically is a chuck machine of nonrust steel pipe, the nonrust steel pipe takes place the condition of deformation when it can prevent effectively that the second pressure head from exerting pressure to nonrust steel pipe, alleviates the load of follow-up processing, improves the practicality, including quick-witted case and chuck storehouse, the chuck storehouse is installed in the top of quick-witted case, and is provided with the working chamber in the inside in chuck storehouse, is provided with first pneumatic cylinder and second pneumatic cylinder in the working chamber, and is provided with first pressure head at the bottom output of first pneumatic cylinder, and the left end in chuck storehouse is provided with the embedding hole, and the inside of machine case is provided with the hydraulic pressure station device with first pneumatic cylinder and second pneumatic cylinder intercommunication. The sliding mechanism further comprises a front fixing plate, a rear fixing plate, a push plate, a front clamping plate, a rear clamping plate, two groups of guide pillars, two groups of guide sleeves, two groups of limiting sliding blocks, a front sliding column and a rear sliding column, a front guide groove and a rear guide groove are formed in the inner bottom wall of the working cavity, and a limiting sliding groove in the front-rear direction is formed in the left end of the push plate.

Description

Chuck machine of nonrust steel pipe

Technical Field

The utility model relates to a technical field of nonrust steel pipe machining auxiliary device specifically is a chuck machine of nonrust steel pipe.

Background

As is well known, a stainless steel tube is usually manufactured by cold rolling and cold drawing methods, and one end of the stainless steel tube must be pressed into a small end during cold drawing, so that the stainless steel tube can be inserted into a die for cold drawing, and the end head is cut off after cold drawing; the existing stainless steel pipe clamping machine comprises a machine case and a clamping head bin, wherein the clamping head bin is installed at the top end of the machine case, a working cavity is arranged inside the clamping head bin, the top and the rear end of the working cavity are respectively provided with a first hydraulic cylinder and a second hydraulic cylinder, a first pressure head is arranged at the output end of the bottom of the first hydraulic cylinder, a second pressure head is arranged at the output end of the front side of the second hydraulic cylinder, a baffle matched with the second pressure head is arranged at the front end of the inner bottom wall of the working cavity, an embedding hole is formed in the left end of the clamping head bin, and a hydraulic station device communicated with the first hydraulic cylinder and the second hydraulic cylinder is arranged inside the machine case; when the existing chuck machine for the stainless steel pipe is used, the end part of the stainless steel pipe penetrates through the embedding hole and extends into the working cavity, then the first hydraulic cylinder drives the first pressure head to downwards press the end part of the stainless steel pipe, then the second hydraulic cylinder drives the second pressure head to move forwards, the baffle plate limits the end part of the stainless steel pipe, the second pressure head and the baffle plate transversely compress the stainless steel pipe, and finally the end part of the stainless steel pipe is pulled out; the chuck machine of current nonrust steel pipe discovers in using, when the second pressure head applyed pressure to nonrust steel pipe, makes nonrust steel pipe whole take place deformation easily, increases the load of follow-up processing, leads to the practicality lower.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a chuck machine of nonrust steel pipe, it can prevent effectively that the nonrust steel pipe from taking place the condition of deformation when the second pressure head is exerted pressure to nonrust steel pipe, alleviates the load of follow-up processing, improves the practicality.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a chuck machine for stainless steel pipes comprises a case and a chuck bin, wherein the chuck bin is mounted at the top end of the case, a working cavity is arranged inside the chuck bin, a first hydraulic cylinder and a second hydraulic cylinder are arranged in the working cavity, a first pressure head is arranged at the output end of the bottom of the first hydraulic cylinder, an embedding hole is formed in the left end of the chuck bin, and a hydraulic station device communicated with the first hydraulic cylinder and the second hydraulic cylinder is arranged inside the case; the hydraulic press comprises a working cavity, a front fixing plate, a rear fixing plate, a push plate, a front clamping plate, a rear clamping plate, two groups of guide posts and two groups of guide sleeves, wherein the second hydraulic cylinder is arranged at the right end of the bottom in the working cavity, the left output end of the second hydraulic cylinder is connected with the middle part of the right end of the push plate, the right ends of the two groups of guide sleeves are respectively connected with the front end and the rear end of the right side wall of the working cavity, the left ends of the two groups of guide posts are respectively connected with the front side and the rear side of the right end of the push plate, the right ends of the two groups of guide posts are respectively inserted into the left ends of the two groups of guide sleeves, the front fixing plate and the rear fixing plate are respectively and fixedly arranged at the front side and the rear side of the bottom wall in the working cavity, a first pressure head is positioned right above the middle of the front fixing plate and the rear fixing plate, a first front wedge surface and a first rear, wedge-shaped and second back wedge-shaped are laminated with first preceding wedge-shaped and first back wedge-shaped respectively before the second, and the left end of push pedal is provided with fore-and-aft direction's spacing spout to slide in spacing spout and be provided with two sets of spacing sliders, the right-hand member of front splint and back splint is connected with two sets of spacing sliders respectively, and the first half region and the latter half region of cavity diapire are provided with preceding guide way and back guide way respectively in the work, the bottom of front splint and back splint is provided with preceding traveller and back traveller respectively, preceding traveller and back traveller slide respectively and set up in preceding guide way and back guide way.

Preferably, the front guide groove and the rear guide groove are parallel to the first front wedge-shaped surface and the first rear wedge-shaped surface, respectively.

Preferably, the front clamping fixture further comprises a front mounting plate, two groups of front threaded pipes, two groups of front threaded rods, a rear mounting plate, two groups of rear threaded pipes and two groups of rear threaded rods, wherein two groups of front mounting through holes are formed in the front side wall of the clamping fixture bin, front ball bearings are fixedly mounted in the two groups of front mounting through holes respectively, the rear ends of the two groups of front threaded pipes penetrate through the two groups of front ball bearings respectively and extend into the working cavity, the rear ends of the two groups of front threaded rods are connected with the left side and the right side of the front mounting plate respectively, the front ends of the two groups of front threaded rods are inserted into the rear ends of the two groups of front threaded pipes respectively and are screwed into the working cavity, two groups of rear mounting through holes are formed in the rear side wall of the clamping fixture bin, rear ball bearings are fixedly mounted in the two groups of rear mounting through holes respectively, the front ends of the two groups of rear threaded pipes penetrate through the two groups of rear ball, the front end of two sets of back threaded rods is connected with the left side and the right side of back mounting panel rear end respectively, and the rear end of two sets of back threaded rods inserts respectively and spiral shell dress to two sets of back screwed pipe inside the front end, preceding mounting panel sets up around with the back mounting panel relatively to preceding mounting panel and back mounting panel are located the left side of preceding fixed plate and after-fixing board respectively, and multiunit front clamp wheel and back clamp wheel are installed respectively to the rear end of preceding mounting panel and the front end of back mounting panel.

Preferably, the rear end of the front clamping plate and the front end of the rear clamping plate are respectively provided with a front arc-shaped groove and a rear arc-shaped groove, and the front arc-shaped groove and the rear arc-shaped groove are opposite to each other in the front-rear direction.

Preferably, the inner bottom wall of the working cavity is provided with a plurality of groups of conveying grooves, the plurality of groups of conveying grooves are all positioned between the plurality of groups of front clamping wheels and the plurality of groups of rear clamping wheels, and conveying rollers can be rotatably arranged in the plurality of groups of conveying grooves.

Preferably, the front side wall and the rear side wall of the chuck bin are both provided with observation holes, the two groups of observation holes are communicated with the working cavity, and the two groups of observation holes are both provided with transparent baffles.

Preferably, be provided with the limiting plate on the interior diapire of working chamber, the limiting plate is located the right side between preceding fixed plate and the after-fixing board and is located the left side of push pedal.

Preferably, the front ends of the two groups of front threaded pipes and the rear ends of the two groups of rear threaded pipes are arranged on the rotating hand wheel.

(III) advantageous effects

Compared with the prior art, the utility model provides a chuck machine of nonrust steel pipe possesses following beneficial effect:

the stainless steel pipe clamping machine comprises a stainless steel pipe, a first hydraulic cylinder, a second hydraulic cylinder, a push plate, a front clamping plate, a rear clamping plate, a front sliding column, a rear sliding column, a front guide groove, a rear guide groove, a first pressure head, a second hydraulic cylinder, a push plate, a first front wedge surface, a second rear wedge surface, a front clamping plate, a rear clamping plate, a front guide groove, a rear guide groove, a front guide column and a rear sliding column, the front clamping plate and the rear clamping plate move back to back when the push plate drives the front clamping plate and the rear clamping plate to move rightwards conveniently.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic top view of the interior of the cartridge chamber of the present invention;

fig. 3 is a left side view structural schematic diagram of the inside of the chuck bin of the present invention.

In the figure: 1. a chassis; 2. a chuck bin; 3. a first hydraulic cylinder; 4. a second hydraulic cylinder; 5. a first ram; 6. an insertion hole; 7. a hydraulic station device; 8. a front fixing plate; 9. a rear fixing plate; 10. pushing the plate; 11. a front splint; 12. a rear splint; 13. a guide post; 14. a guide sleeve; 15. a first front wedge face; 16. a first rear wedge face; 17. a limiting chute; 18. a limiting slide block; 19. a front guide groove; 20. a rear guide groove; 21. a front strut; 22. a rear strut; 23. a front mounting plate; 24. a front threaded pipe; 25. a front threaded rod; 26. a rear mounting plate; 27. a rear threaded pipe; 28. a rear threaded rod; 29. a front ball bearing; 30. a rear ball bearing; 31. a front clamping wheel; 32. a rear clamping wheel; 33. a front arc-shaped groove; 34. a rear arc-shaped groove; 35. a conveying trough; 36. a conveying roller; 37. a transparent baffle; 38. a limiting plate; 39. the hand wheel is rotated.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the clamping head machine for stainless steel pipes of the present invention comprises a machine case 1 and a clamping head chamber 2, wherein the clamping head chamber 2 is installed at the top end of the machine case 1, a working chamber is arranged inside the clamping head chamber 2, a first hydraulic cylinder 3 and a second hydraulic cylinder 4 are arranged in the working chamber, a first pressing head 5 is arranged at the bottom output end of the first hydraulic cylinder 3, an insertion hole 6 is arranged at the left end of the clamping head chamber 2, a hydraulic station device 7 communicated with the first hydraulic cylinder 3 and the second hydraulic cylinder 4 is arranged inside the machine case 1, a front fixing plate 8, a rear fixing plate 9, a push plate 10, a front clamping plate 11, a rear clamping plate 12, two sets of guide posts 13 and two sets of guide sleeves 14 are further arranged inside the machine case 1, the second hydraulic cylinder 4 is installed at the right end of the bottom inside the working chamber, the left output end of the second hydraulic cylinder 4 is connected with the middle part of the right end of, the left ends of two groups of guide posts 13 are respectively connected with the front side and the rear side of the right end of the push plate 10, the right ends of two groups of guide posts 13 are respectively inserted into the left ends of two groups of guide sleeves 14, the front fixing plate 8 and the rear fixing plate 9 are respectively and fixedly arranged on the front side and the rear side of the bottom wall in the working cavity, the first pressure head 5 is positioned right above the middle of the front fixing plate 8 and the rear fixing plate 9, the rear side wall of the front fixing plate 8 and the front side wall of the rear fixing plate 9 are respectively provided with a first front wedge-shaped surface 15 and a first rear wedge-shaped surface 16, the front end of the front clamping plate 11 and the rear end of the rear clamping plate 12 are respectively provided with a second front wedge-shaped surface and a second rear wedge-shaped surface, the second front wedge-shaped surface and the second rear wedge-shaped surface are respectively attached with the first front wedge-shaped surface 15 and the first rear wedge-shaped surface 16, the left end of the push plate 10 is provided with a front-rear-direction limiting sliding, the front half area and the rear half area of the bottom wall in the working cavity are respectively provided with a front guide groove 19 and a rear guide groove 20, the bottom ends of the front splint 11 and the rear splint 12 are respectively provided with a front sliding column 21 and a rear sliding column 22, the front sliding column 21 and the rear sliding column 22 are respectively arranged in the front guide groove 19 and the rear guide groove 20 in a sliding manner, the rear end of the front splint 11 and the front end of the rear splint 12 are respectively provided with a front arc-shaped groove 33 and a rear arc-shaped groove 34, the front arc-shaped groove 33 and the rear arc-shaped groove 34 are opposite in a front-back manner, the end part of the stainless steel tube is conveniently clamped and extruded and deformed by the front arc-shaped groove 33 and the rear arc-shaped groove 34, the front guide groove 19 and the rear guide groove 20 are respectively parallel to the first front wedge-shaped surface 15 and the first rear wedge-shaped surface 16 to ensure that the first front wedge-shaped surface 15 is always attached to the second front wedge surface, the first rear wedge, the limiting plate 38 is located on the right side between the front fixing plate 8 and the rear fixing plate 9 and on the left side of the push plate 10, the right end of the stainless steel pipe can be limited by the limiting plate 38, the right end of the stainless steel pipe extends into the working cavity from the embedding hole 6, the first pressure head 5 is driven by the first hydraulic cylinder 3 to move downwards to extrude the end of the stainless steel pipe, then the push plate 10 is driven by the second hydraulic cylinder 4 to move leftwards, the front clamping plate 11 and the rear clamping plate 12 move oppositely while moving leftwards through the matching of the first front wedge-shaped surface 15 and the second front wedge-shaped surface and the matching of the first rear wedge-shaped surface 16 and the second rear wedge-shaped surface, the synchronization of the movement of the front clamping plate 11 and the rear clamping plate 12 is ensured, the end of the stainless steel pipe is extruded and deformed back and forth through the matching of the front clamping plate 11 and the rear clamping plate 12, pressure is applied to the front and back of the stainless steel pipe, the load of follow-up processing is lightened, the practicability is improved, and the front sliding column 21 and the rear sliding column 22 respectively slide along the front guide groove 19 and the rear guide groove 20, so that the front clamping plate 11 and the rear clamping plate 12 can conveniently move backwards when the push plate 10 drives the front clamping plate 11 and the rear clamping plate 12 to move rightwards.

The utility model discloses a chuck machine of stainless steel pipe, which also comprises a front mounting plate 23, two groups of front threaded pipes 24, two groups of front threaded rods 25, a rear mounting plate 26, two groups of rear threaded pipes 27 and two groups of rear threaded rods 28, wherein two groups of front mounting through holes are arranged on the front side wall of the chuck chamber 2, and front ball bearings 29 are fixedly arranged in the two groups of front mounting through holes, the rear ends of the two groups of front threaded pipes 24 respectively penetrate through the two groups of front ball bearings 29 and extend into the working chamber, the rear ends of the two groups of front threaded rods 25 are respectively connected with the left side and the right side of the front end of the front mounting plate 23, the front ends of the two groups of front threaded rods 25 are respectively inserted and screwed into the rear ends of the two groups of front threaded pipes 24, two groups of rear mounting through holes are arranged on the rear side wall of the chuck chamber 2, and rear ball bearings 30 are fixedly arranged in the two groups of rear mounting through holes, the front ends of the two groups of rear threaded pipes 27 respectively penetrate through the two groups of rear ball, the front ends of two groups of rear threaded rods 28 are respectively connected with the left side and the right side of the rear end of a rear mounting plate 26, the rear ends of two groups of rear threaded rods 28 are respectively inserted into and screwed into the front ends of two groups of rear threaded pipes 27, the front mounting plate 23 and the rear mounting plate 26 are oppositely arranged, the front mounting plate 23 and the rear mounting plate 26 are respectively positioned on the left sides of a front fixing plate 8 and a rear fixing plate 9, the rear end of the front mounting plate 23 and the front end of the rear mounting plate 26 are respectively provided with a plurality of groups of front clamping wheels 31 and rear clamping wheels 32, the inner bottom wall of the working chamber is provided with a plurality of groups of conveying grooves 35, the plurality of groups of conveying grooves 35 are respectively positioned between the plurality of groups of front clamping wheels 31 and the plurality of groups of rear clamping wheels 32, conveying rollers 36 are rotatably arranged in the plurality of groups of conveying grooves 35, the front side wall and the rear side wall of the chuck chamber 2 are respectively, the front ends of the two groups of front threaded pipes 24 and the rear ends of the two groups of rear threaded pipes 27 are arranged on a rotating hand wheel 39; through rotating rotatory hand wheel 39, screwed pipe 24 and back screwed pipe 27 rotate before driving, cooperation through preceding screwed pipe 24 and preceding threaded rod 25 and the cooperation of back screwed pipe 27 and back threaded rod 28, can carry out fore-and-aft regulation to preceding mounting panel 23 and back mounting panel 26, thereby adjust the interval of preceding mounting panel 23 and back mounting panel 26, carry nonrust steel pipe through multiunit conveying roller 36, pinch roller 31 and multiunit back pinch roller 32 press from both sides the both sides of nonrust steel pipe tightly before passing through the multiunit, stability when further improving nonrust steel pipe chuck, can observe the adjusting distance of preceding mounting panel 23 and back mounting panel 26 through observing the hole, improve the reliability of use.

When the stainless steel pipe clamping head is used, the front threaded pipe 24 and the rear threaded pipe 27 are driven to rotate by rotating the rotary hand wheel 39, the front mounting plate 23 and the rear mounting plate 26 can be adjusted forwards and backwards through the matching of the front threaded pipe 24 and the front threaded rod 25 and the matching of the rear threaded pipe 27 and the rear threaded rod 28, so that the distance between the front mounting plate 23 and the rear mounting plate 26 is adjusted, the stainless steel pipe is conveyed through a plurality of groups of conveying rollers 36, two sides of the stainless steel pipe are clamped through a plurality of groups of front clamping wheels 31 and a plurality of groups of rear clamping wheels 32, the stability of the stainless steel pipe clamping head is further improved, the right end of the stainless steel pipe extends into the working cavity from the embedding hole 6, the first pressure head 5 is driven by the first hydraulic cylinder 3 to move downwards to extrude the end of the stainless steel pipe, then the push plate 10 is driven by the second hydraulic cylinder 4 to move leftwards, the matching of the first front wedge-shaped surface 15 and the second front wedge-shaped surface and, make front splint 11 and back splint 12 remove in opposite directions when moving left, and guarantee the synchronization that front splint 11 and back splint 12 removed, extrusion deformation around the tip of nonrust steel pipe is carried out through the cooperation of front splint 11 and back splint 12, all exert pressure around the nonrust steel pipe, can effectively prevent the nonrust steel pipe because the one-way condition of taking place deformation of exerting pressure, alleviate the load of follow-up processing, the high practicality, slide along leading guide way 19 and back guide way 20 respectively through preceding traveller 21 and back traveller 22, make front splint 11 and back splint 12 remove dorsad when making things convenient for push pedal 10 to drive front splint 11 and back splint 12 to remove right.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A chuck machine for stainless steel pipes comprises a case (1) and a chuck bin (2), wherein the chuck bin (2) is installed at the top end of the case (1), a working cavity is formed inside the chuck bin (2), a first hydraulic cylinder (3) and a second hydraulic cylinder (4) are arranged in the working cavity, a first pressure head (5) is arranged at the output end of the bottom of the first hydraulic cylinder (3), an embedding hole (6) is formed in the left end of the chuck bin (2), and a hydraulic station device (7) communicated with the first hydraulic cylinder (3) and the second hydraulic cylinder (4) is arranged inside the case (1); the method is characterized in that: the hydraulic press is characterized by further comprising a front fixing plate (8), a rear fixing plate (9), a push plate (10), a front clamping plate (11), a rear clamping plate (12), two groups of guide posts (13) and two groups of guide sleeves (14), wherein the second hydraulic cylinder (4) is arranged at the right end of the bottom in the working cavity, the left output end of the second hydraulic cylinder (4) is connected with the middle part of the right end of the push plate (10), the right ends of the two groups of guide sleeves (14) are respectively connected with the front end and the rear end of the right side wall of the working cavity, the left ends of the two groups of guide posts (13) are respectively connected with the front side and the rear side of the right end of the push plate (10), the right ends of the two groups of guide posts (13) are respectively inserted into the left ends of the two groups of guide sleeves (14), the front fixing plate (8) and the rear fixing plate (9) are respectively and fixedly arranged on the front side and the rear, a first front wedge-shaped surface (15) and a first rear wedge-shaped surface (16) are respectively arranged on the rear side wall of the front fixing plate (8) and the front side wall of the rear fixing plate (9), the front end of the front clamping plate (11) and the rear end of the rear clamping plate (12) are respectively provided with a second front wedge-shaped surface and a second rear wedge-shaped surface, the second front wedge-shaped surface and the second rear wedge-shaped surface are respectively laminated with the first front wedge-shaped surface (15) and the first rear wedge-shaped surface (16), the left end of the push plate (10) is provided with a front-rear direction limiting sliding groove (17), and two sets of limiting sliding blocks (18) are arranged in the limiting sliding groove (17) in a sliding manner, the right ends of the front clamping plate (11) and the rear clamping plate (12) are respectively connected with the two sets of limiting sliding blocks (18), the front half region and the rear half region of the bottom wall in the working cavity are respectively provided with a front guide groove (19) and a rear guide groove (20), the bottoms of the front clamping plate (11) and, the front sliding column (21) and the rear sliding column (22) are respectively arranged in the front guide groove (19) and the rear guide groove (20) in a sliding mode.

2. The stainless steel tube collet machine of claim 1, wherein: the front guide groove (19) and the rear guide groove (20) are respectively parallel to the first front wedge-shaped surface (15) and the first rear wedge-shaped surface (16).

3. The stainless steel tube collet machine of claim 1, wherein: the front end of the front threaded rod (25) is inserted into the rear ends of the front threaded pipes (25) and screwed into the rear end of the front threaded pipes (24), the rear side wall of the chuck bin (2) is provided with two rear mounting through holes, and rear ball bearings (30) are fixedly mounted in the rear mounting through holes, the front end of two sets of back screwed pipe (27) passes two sets of back ball bearing (30) respectively from the rear end in chuck storehouse (2) and stretches into to the working chamber in, the front end of two sets of back threaded rod (28) is connected with the left side and the right side of back mounting panel (26) rear end respectively, and the rear end of two sets of back threaded rod (28) inserts respectively and spiral shell dress to the front end of two sets of back screwed pipe (27) inside, set up relatively around preceding mounting panel (23) and back mounting panel (26) to preceding mounting panel (23) and back mounting panel (26) are located the left side of preceding fixed plate (8) and after-fixing plate (9) respectively, and multiunit front clamp wheel (31) and back clamp wheel (32) are installed respectively to the rear end of preceding mounting panel (23) and the front end of back mounting panel (26).

4. The stainless steel tube collet machine of claim 1, wherein: the rear end of the front clamping plate (11) and the front end of the rear clamping plate (12) are respectively provided with a front arc-shaped groove (33) and a rear arc-shaped groove (34), and the front arc-shaped groove (33) and the rear arc-shaped groove (34) are opposite front and back.

5. The stainless steel tube collet machine of claim 1, wherein: the inner bottom wall of the working cavity is provided with a plurality of groups of conveying grooves (35), the plurality of groups of conveying grooves (35) are respectively positioned between the plurality of groups of front clamping wheels (31) and the plurality of groups of rear clamping wheels (32), and conveying rollers (36) are rotatably arranged in the plurality of groups of conveying grooves (35).

6. The stainless steel tube collet machine of claim 1, wherein: and the front side wall and the rear side wall of the chuck bin (2) are both provided with observation holes, the two groups of observation holes are communicated with the working cavity, and the two groups of observation holes are both provided with transparent baffles (37).

7. The stainless steel tube collet machine of claim 1, wherein: be provided with limiting plate (38) on the interior diapire of working chamber, limiting plate (38) are located the right side between preceding fixed plate (8) and after-fixing board (9) and are located the left side of push pedal (10).

8. The stainless steel tube collet machine of claim 3, wherein: the front ends of the two groups of front threaded pipes (24) and the rear ends of the two groups of rear threaded pipes (27) are arranged on a rotating hand wheel (39).