Stainless steel tube spinning machine

Abstract

The invention discloses a stainless steel pipe spinning machine, and belongs to the technical field of steel pipe spinning machines, the stainless steel pipe spinning machine comprises a cabinet, a steel pipe positioning mechanism is assembled on the inner bottom wall of the cabinet, a transverse moving mechanism is assembled on the inner top wall of the cabinet, a vertical moving mechanism is assembled on the transverse moving mechanism, and a spinning mechanism is assembled on the vertical moving mechanism; by means of the spinning mechanism, multiple sets of spinning pieces can be quickly spliced through a detachable combined structure of the spinning pieces, the multi-recess machining requirement is met, special spinning heads do not need to be additionally arranged, the equipment specifications and types are remarkably reduced, spinning arc blocks can be unfolded outwards through driving rods, the spinning arc blocks can automatically adapt to the deformation depths of steel pipes of different specifications, and the machining efficiency is improved. The spinning head is prevented from being frequently replaced, the machining flexibility is improved, meanwhile, the attaching plate abuts against the spinning arc block in real time in the unfolding process, the non-deformation area of the steel pipe is tightly attached in real time in the spinning process, and the area is prevented from being deformed.

Description

Technical Field

[0001] The present invention relates to the technical field of steel pipe spinning machines, and particularly to a stainless steel pipe spinning machine. Background Art

[0002] Spinning is to fix a flat or hollow blank on the mold of a spinning machine. While the blank rotates with the main shaft of the machine tool, a spinning wheel or other structures apply pressure to the blank to cause local plastic deformation.

[0003] Currently, when a spinning machine performs a spinning operation on a stainless steel pipe to form local inwardly sunken plastic deformation, it faces significant operation limitations and cost challenges. Specifically, for stainless steel pipes of different specifications or to achieve different degrees of deformation effects, it is necessary to frequently replace the spinning heads of corresponding sizes. This process is not only cumbersome in operation but also inefficient. More importantly, when the processing requirement is upgraded to spin two or more depressions on the stainless steel pipe, it is necessary to additionally configure specially designed spinning heads and increase more size specifications accordingly, resulting in a sharp increase in equipment costs. Summary of the Invention

[0004] The purpose of the present invention is to provide a stainless steel pipe spinning machine to solve the problem that when the processing requirement is upgraded to spin two or more depressions on the stainless steel pipe, it is necessary to additionally configure specially designed spinning heads and increase more size specifications accordingly, resulting in a sharp increase in equipment costs.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions: A stainless steel pipe spinning machine includes a cabinet. A steel pipe positioning mechanism is assembled on the inner bottom wall of the cabinet, a transverse moving mechanism is assembled on the inner top wall of the cabinet, a vertical moving mechanism is assembled on the transverse moving mechanism, and a spinning mechanism is assembled on the vertical moving mechanism; The spinning mechanism includes a vertical plate fixed on the vertical moving mechanism. The vertical plate is connected with a spinning member through two telescopic holding members; The spinning member includes a holding frame. A limiting seat is fixed at the center of the holding frame. A spinning arc block is slidably connected to the limiting seat through a horizontal chute. The spinning arc block is unfolded outward through a driving rod rotatably connected in the limiting seat; The spinning mechanism further includes a transverse adjustment assembly assembled on the telescopic holding member. The transverse adjustment assembly further adjusts the overall position of the spinning arc block by rotating around the driving rod as an axis.

[0006] As a further description of the above technical solution: The spinning part further includes a sliding sleeve sleeved on the top end of the driving rod. The top of the inner wall of the limiting seat is engraved with internal threads, and the outer wall of the sliding sleeve is engraved with external threads adapted to the internal threads, so that after the sliding sleeve drives the driving rod to rotate, it can be threadedly connected into the limiting seat.

[0007] As a further description of the above technical solution: The top and bottom of the outer wall of the cage are both provided with vertical sliding grooves. A fitting plate is connected in the vertical sliding groove through a vertical sliding block. One end of the fitting plate is in contact with the outer wall of the spinning arc block. A second spring is installed on the vertical sliding block, and the second spring is fixed to the inner wall of the vertical sliding groove.

[0008] As a further description of the above technical solution: One end of the spinning arc block is fixed with a horizontal sliding rod adapted to the horizontal sliding groove. A plurality of guiding grooves corresponding to the horizontal sliding rod are arranged on the outer wall of the driving rod. A resisting ring is fixedly sleeved on the outer surface of the horizontal sliding rod. One side of the resisting ring is fixed with a third spring, and one end of the third spring is connected to one side wall of the horizontal sliding groove.

[0009] As a further description of the above technical solution: The spinning mechanism further includes end caps clamped at both ends of the cage. The end caps are connected to the limiting seat by bolts. The bottom of the lower end cap is threadedly connected with a lower hollow shaft through a threaded groove, and the top of the upper end cap is fixed with an upper hollow shaft adapted to the threaded groove.

[0010] As a further description of the above technical solution: The telescopic holding member includes a holding seat connected to the vertical plate. A bearing seat is connected in the holding seat through a fourth spring. The lower hollow shaft and the upper hollow shaft are respectively inserted into the two bearing seats, so that the spinning part is rotatably connected between the two telescopic holding members.

[0011] As a further description of the above technical solution: The lateral adjustment assembly includes a support fixed on the bearing seat. A shaft column is rotatably connected in the support. The top end of the shaft column is fixed with a cam member, and one end of the cam member abuts against the outer wall of the vertical plate.

[0012] As a further description of the above technical solution: The bottom end of the shaft column is rotatably connected with an installation pipe through a bearing. The top end of the sliding sleeve penetrates through the upper hollow shaft and is fixed in the installation pipe, so that the sliding sleeve does not rotate together when the shaft column rotates.

[0013] As a further description of the above technical solution: The vertical moving mechanism includes a mounting seat installed on the horizontal moving mechanism. The middle of the outer wall of the mounting seat is fixed with an electric push rod. Both sides of the outer wall of the mounting seat are slidably connected with sliders through slide rails. The sliders are distributed in the form of two groups of one. A moving seat is fixed on the outer wall of each group of sliders. The vertical plate is fixed on the moving seat, and a connecting plate is jointly fixed at the bottom ends of the two moving seats. One end of the electric push rod is fixed to the connecting plate.

[0014] As a further description of the above technical solution: The steel pipe positioning mechanism includes a base installed in the cabinet. An installation box is assembled on the base. A placement shaft for inserting a stainless steel pipe is rotatably connected in the middle of the installation box. A motor is assembled on the inner top wall of the installation box. The output end of the motor is fixed to the bottom end of the placement shaft. An electric hydraulic push rod is fixed on the inner top wall of the cabinet. One end of the electric hydraulic push rod extends to the base. A pipe pressing shaft adapted to the placement shaft is rotatably connected to the bottom of the extension base.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: Through the provided spinning mechanism, a detachable combination structure of the spinning parts is realized, and multiple groups of spinning parts can be quickly spliced to meet the processing requirements of multiple depressions. There is no need to additionally configure special spinning heads, significantly reducing the types of equipment specifications; And through the driving rod, the spinning arc block can be expanded outwards to automatically adapt to the deformation depth of steel pipes of different specifications, avoiding frequent replacement of the spinning head, improving the processing flexibility. At the same time, during the expansion process, the fitting plate is in contact with the spinning arc block in real time and tightly fits the undeformed area of the steel pipe during the spinning process, avoiding deformation in this part of the area. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shows a three-dimensional structural schematic diagram provided by an embodiment of the present invention; Figure 2 Shows a split structural schematic diagram of the spinning parts provided by an embodiment of the present invention; Figure 3 Shows provided by an embodiment of the present invention Figure 2 An enlarged view of part A in; Figure 4 Shows provided by an embodiment of the present invention Figure 2 An enlarged view of part B in; Figure 5 Shows a structural schematic diagram of the end cover partially cut open provided by an embodiment of the present invention; Figure 6 Shows a structural schematic diagram of the vertical moving mechanism provided by an embodiment of the present invention; Figure 7Shows a schematic structural diagram of a drive rod provided according to an embodiment of the present invention; Figure 8 Shows a schematic structural diagram of the overall spinning mechanism provided according to an embodiment of the present invention; Figure 9 Shows a schematic structural diagram of the combined spinning parts provided according to an embodiment of the present invention.

[0017] Legend description: 10, cabinet; 20, steel pipe positioning mechanism; 21, placing shaft; 22, pipe pressing shaft; 30, vertical moving mechanism; 40, spinning mechanism; 41, vertical plate; 42, telescopic holding member; 421, holding seat; 422, bearing seat; 43, spinning part; 431, cage; 432, limiting seat; 433, spinning arc block; 434, sliding sleeve; 435, fitting plate; 436, horizontal sliding rod; 437, guiding groove; 438, drive rod; 44, end cover; 50, lateral adjustment assembly; 51, support; 52, cam member. Specific implementation manner

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] As Figure 1 - Figure 9 shown, what the present invention provides: A stainless steel pipe spinning machine, including a cabinet 10, and a steel pipe positioning mechanism 20 is assembled on the inner bottom wall of the cabinet 10; Further in detail, the steel pipe positioning mechanism 20 includes a base installed in the cabinet 10, an installation box is assembled on the base, a placing shaft 21 for inserting and placing a stainless steel pipe is rotatably connected in the middle of the installation box, a motor is assembled on the inner top wall of the installation box, the output end of the motor is fixed to the bottom end of the placing shaft 21, an electric hydraulic push rod is fixed on the inner top wall of the cabinet 10, one end of the electric hydraulic push rod extends to the seat, and a pipe pressing shaft 22 adapted to the placing shaft 21 is rotatably connected to the bottom of the extending seat; Specifically, after the stainless steel pipe to be spun is inserted on the surface of the placement shaft 21, the electric hydraulic push rod is used to drive the extension seat to drive the pipe pressing shaft 22 to move downward and insert it into the stainless steel pipe, and cooperate with the placement shaft 21 to clamp and fix the stainless steel pipe. At this time, after the motor is started, the placement shaft 21 will drive the stainless steel pipe and the pipe pressing shaft 22 to rotate together. At this time, when the lower moving mechanism drives the vertical moving mechanism 30 and the spinning mechanism 40 on its surface to move towards the stainless steel pipe, after contact, the rotating stainless steel pipe will drive the spinning member 43 to rotate, and then the spinning arc block 433 will complete the spinning of the stainless steel pipe.

[0020] As Figure 1 , Figure 6 and Figure 8 shown, a transverse moving mechanism is assembled on the inner top wall of the cabinet 10, and a vertical moving mechanism 30 is assembled on the transverse moving mechanism; More specifically, the vertical moving mechanism 30 includes a mounting seat installed on the transverse moving mechanism. The middle of the outer wall of the mounting seat is fixed with an electric push rod. Both sides of the outer wall of the mounting seat are slidably connected with sliders through slide rails. The sliders are distributed in the form of two groups in one group. A moving seat is fixed on the outer wall of each group of sliders, and a connecting plate is fixedly connected to the bottom ends of the two moving seats. One end of the electric push rod is fixed to the connecting plate. In particular, the transverse moving mechanism has the same structure as the vertical moving mechanism 30, only the installation orientation is different; Specifically, when the vertical position of the spinning member 43 needs to be adjusted, the electric push rod is started to drive the connecting plate to move, and then the spinning member 43 is driven to move to the required position through the moving seat; As Figure 1 , Figure 2 and Figure 5 shown, a spinning mechanism 40 is assembled on the vertical moving mechanism 30. The spinning mechanism 40 includes a vertical plate 41 fixed to the vertical moving mechanism 30. The vertical plate 41 is fixed to the moving seat. A spinning member 43 is connected to the vertical plate 41 through two telescopic holding members 42. The telescopic holding member 42 includes a holding seat 421 connected to the vertical plate 41. A bearing seat 422 is connected in the holding seat 421 through a fourth spring; The spinning member 43 includes a retaining frame 431. A limiting seat 432 is fixed at the center of the retaining frame 431. A spinning arc block 433 is slidably connected to the limiting seat 432 through a horizontal chute. The spinning arc block 433 is unfolded outward through a driving rod 438 rotatably connected in the limiting seat 432; More specifically, the spinning member 43 further includes a sliding sleeve 434 slidably sleeved on the top end of the driving rod 438. Internal threads are engraved on the top inner wall of the limiting seat 432, and external threads adapted to the internal threads are engraved on the outer wall of the sliding sleeve 434, so that the sliding sleeve 434 can be screwed into the limiting seat 432 after driving the driving rod 438 to rotate; Specifically, the bottom end of the driving rod 438 is rotatably connected to the inner bottom wall of the limiting seat 432, so that it can only rotate but cannot move up and down. In this state, when the position of the sliding sleeve 434 is fixed, the position of the driving rod 438 is also fixed. Preferably, a fifth spring is fixed on the inner top wall of the sliding sleeve 434, and a resistance block is fixed at the bottom end of the fifth spring. The bottom end of the resistance block abuts against one end of the driving rod 438 extending into the sliding sleeve 434, so that the driving rod 438 can be resisted in real time during the rotation process, thereby maintaining stability in real time.

[0021] Furthermore, vertical slide grooves are provided at the top and bottom of the outer wall of the retaining frame 431, and a fitting plate 435 is connected to the vertical slide groove through a vertical slider, one end of the fitting plate 435 fits with the outer wall of the spinning arc block 433, and a second spring is installed on the vertical slider, and the second spring is fixed to the inner wall of the vertical slide groove; Specifically, by setting up a second spring, the end of the bonding plate 435 can always maintain a state of bonding and abutting the outer wall of the spun arc block 433, and at the same time, the bonding plate 435 can gradually reset when the spun arc block 433 changes from an expanded state to an inward movement. In more detail, the outer wall of the bonding plate 435 and the outer wall of the retaining frame 431 are on the same loop line, so that it can be in contact with the outer wall of the undeformed part of the spun stainless steel pipe, just like the outer wall of the retaining frame 431.

[0022] like Figure 2 and Figure 4 As shown, a horizontal slide bar 436 adapted to the horizontal slide groove is fixed at one end of the spinning arc block 433, a plurality of guide grooves 437 corresponding to the horizontal slide bar 436 are opened on the outer wall of the driving rod 438, a retaining ring is fixedly sleeved on the outer surface of the horizontal slide bar 436, a third spring is fixed on one side of the retaining ring, and one end of the third spring is connected to a side wall of the horizontal slide groove; In further detail, in the initial state, one end of the horizontal slide bar 436 is in contact with the inner wall of the recessed part of the guide groove 437. When the driving rod 438 rotates, the horizontal slide bar 436 is driven to move outward under the action of the gradually convex inner wall of the guide groove 437, thereby pushing the spinning arc block 433 to move outward to adapt to the different spinning depths of the stainless steel pipe. When the driving rod 438 gradually rotates to the initial state, the horizontal slide bar 436 and the spinning arc block 433 are gradually restored to the initial state under the drive of the third spring.

[0023] like Figure 5As shown, the spinning mechanism 40 further includes end caps 44 clamped to both ends of the cage 431. The end caps 44 are connected to the limiting seat 432 by bolts. The bottom of the lower end cap 44 is threadedly connected with a lower hollow shaft through a threaded groove. The top of the upper end cap 44 is fixed with an upper hollow shaft adapted to the threaded groove. The lower hollow shaft and the upper hollow shaft are respectively inserted into two bearing seats 422, so that the spinning member 43 is rotatably connected between the two telescopic holding members 42; Specifically, when it is necessary to combine two groups of spinning members 43, first screw out the lower hollow shaft on one group of spinning members 43 from the threaded groove, and then screw the upper hollow shaft of the other group of spinning members 43 into the threaded groove of the previous group. At this time, the two groups of spinning members 43 are fixed together, and the two contacting end caps 44 are in a fitting state. It should be noted that before combination, the spinning arc block 433 is driven by the driving rod 438 to move outward until the top of the upper fitting plate 435 is flush with the top of the cage 431 and the bottom of the lower fitting plate 435 is flush with the bottom of the cage 431; In further detail, the bottom end of the shaft column is rotatably connected with an installation pipe through a bearing. The top end of the sliding sleeve 434 penetrates through the upper hollow shaft and is fixed in the installation pipe, so that the sliding sleeve 434 does not rotate together when the shaft column rotates; Specifically, the sliding sleeve 434 is fixed in the installation pipe by bolts. In this state, the shaft column does not rotate together when the sliding sleeve 434 rotates, and the sliding sleeve 434 does not rotate together when the shaft column rotates, and the two do not interfere with each other. In particular, in order to secondarily fix the sliding sleeve 434 threadedly connected in the limiting seat 432 after rotation, a fixing sleeve is sleeved on the outer surface of the sliding sleeve 434. One end of the fixing sleeve is fixed to the bearing seat 422, and a knob stud is threadedly penetrated through the outer wall of the fixing sleeve. After the sliding sleeve 434 drives the driving rod 438 to rotate, tighten the knob stud so that its end abuts against the outer wall of the sliding sleeve 434, thereby further fixing the position of the sliding sleeve 434, so as to prevent the sliding sleeve 434 from loosening under the action of the outer wall, and further prevent the driving rod 438 from rotating by itself, so that the spinning arc block 433 can maintain its position.

[0024] As Figure 1 、 Figure 5 、 Figure 6 and Figure 9 shown, the spinning mechanism 40 further includes a lateral adjustment assembly 50 assembled on the telescopic holding member 42. The lateral adjustment assembly 50 further adjusts the overall position of the spinning arc block 433 by rotating around the driving rod 438; The lateral adjustment assembly 50 includes a support 51 fixed to the bearing seat 422. A shaft column is rotatably connected in the support 51. The top end of the shaft column is fixed with a cam member 52. One end of the cam member 52 abuts against the outer wall of the vertical plate 41; More specifically, a plurality of positioning screw holes are provided at the edge of the upper surface of the support 51 and are distributed in a circumferential array. A positioning bolt adapted to the positioning screw hole is threaded through the cam member 52. Specifically, by rotating the cam member 52, the other end thereof gradually abuts against the vertical plate 41. Under the driving force of the reaction force, the bearing seat 422 gradually moves to one side, and then the cage 431 synchronously moves to one side. After the rotation of the cam member 52 is completed, the positioning bolt is tightened to fix the position of the cam member 52, and then the position of the bearing seat 422 is fixed. In particular, in order to reinforce the position of the bearing seat 422, a knob bolt is threaded through the surface of the retaining seat 421. After the positioning bolt is tightened, the knob bolt is tightened again so that its end abuts against the bearing seat 422 to further fix the position of the bearing seat 422.

[0025] Specifically, when this stainless steel tube spinning machine is in operation / use: 1. Steel tube clamping: Insert the stainless steel tube onto the surface of the placing shaft 21, and start the electric hydraulic push rod to push the extension seat, so that the tube pressing shaft 22 moves downward to complete the clamping and fixing; 2. Spinning head initialization; Adjust the spinning member 43 on the vertical moving mechanism 30 to one side of the steel tube through the lateral moving mechanism, and then start the electric push rod to drive the spinning member 43 to move until the spinning arc block 433 is at the position where the stainless steel tube is to be spun; 3. Spinning depth setting; Rotate the sliding sleeve 434 to adjust the angle of the driving rod 438, and use the convex portion of the guiding groove 437 to push the horizontal sliding rod 436, so that the spinning arc block 433 moves outward to the required deformation depth; 4. Preparation for multi-indentation processing; If multiple indentations need to be processed, disassemble the lower hollow shaft of a set of spinning members 43, and screw the upper hollow shaft of another set of spinning members 43 into it. After combination, the multi-spinning arc blocks 433 cooperate through the fitting of the end cover 44; 5. Automatic spinning execution, start the motor to drive the steel tube to rotate. During the rotation process, push the spinning arc block 433 to contact the steel tube through the lateral moving mechanism, and cooperate with the rotation of the steel tube to complete plastic deformation. After the spinning is completed, reset the spinning member 43.

[0026] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A stainless steel pipe spinning machine, comprising a cabinet (10), a steel pipe positioning mechanism (20) being mounted on the inner bottom wall of the cabinet (10), a lateral movement mechanism being mounted on the inner top wall of the cabinet (10), and a vertical movement mechanism (30) being mounted on the lateral movement mechanism, characterized in that: The vertical moving mechanism (30) is equipped with a spinning mechanism (40); The spinning mechanism (40) comprises a vertical plate (41) fixed on the vertical moving mechanism (30), and a spinning member (43) is connected to the vertical plate (41) via two telescopic retaining members (42); The spinning component (43) comprises a retaining frame (431), a limiting seat (432) is fixed at the center of the retaining frame (431), a spinning arc block (433) is slidably connected to the limiting seat (432) via a horizontal sliding groove, and the spinning arc block (433) is rotatably connected to a driving rod (438) in the limiting seat (432) to achieve outward expansion; The spinning mechanism (40) further comprises a lateral adjustment component (50) mounted on the telescopic retaining member (42), wherein the lateral adjustment component (50) further adjusts the overall position of the spinning arc block (433) by rotating around the driving rod (438) as an axis.

2. A stainless steel pipe spinning machine according to claim 1, characterized in that: The spinning component (43) further comprises a sliding sleeve (434) slidably mounted on the top of the driving rod (438); an internal thread is engraved on the top of the inner wall of the limiting seat (432); an external thread matching the internal thread is engraved on the outer wall of the sliding sleeve (434), so that the sliding sleeve (434) can be threadedly connected to the limiting seat (432) after driving the driving rod (438) to rotate.

3. A stainless steel pipe spinning machine according to claim 2, characterized in that: The top and bottom of the outer wall of the retaining frame (431) are both provided with vertical slide grooves, and a fitting plate (435) is connected to the vertical slide groove via a vertical slider, and one end of the fitting plate (435) fits with the outer wall of the spinning arc block (433), and a second spring is installed on the vertical slider, and the second spring is fixed to the inner wall of the vertical slide groove.

4. A stainless steel pipe spinning machine according to claim 3, characterized in that: A horizontal slide bar (436) adapted to the horizontal slide groove is fixed to one end of the spinning arc block (433); a plurality of guide grooves (437) corresponding to the horizontal slide bar (436) are provided on the outer wall of the driving rod (438); a retaining ring is fixedly sleeved on the outer surface of the horizontal slide bar (436); a third spring is fixed to one side of the retaining ring; one end of the third spring is connected to a side wall of the horizontal slide groove.

5. A stainless steel pipe spinning machine according to claim 4, characterized in that: The spinning mechanism (40) further comprises end covers (44) clamped to both ends of the retaining frame (431), the end covers (44) being connected to the limiting seat (432) via bolts, the bottom of the end cover (44) located at the bottom being threadedly connected to a lower hollow shaft via a threaded groove, and the top of the end cover (44) located at the top being fixed with an upper hollow shaft matching the threaded groove.

6. A stainless steel pipe spinning machine according to claim 5, characterized in that: The telescopic retaining member (42) comprises a retaining seat (421) connected to the vertical plate (41); a bearing seat (422) is connected to the retaining seat (421) via a fourth spring; the lower hollow shaft and the upper hollow shaft are respectively inserted into the two bearing seats (422), so that the spinning member (43) is rotatably connected between the two telescopic retaining members (42).

7. A stainless steel pipe spinning machine according to claim 6, characterized in that: The lateral adjustment assembly (50) comprises a support (51) fixed on the bearing seat (422), a shaft column being rotatably connected inside the support (51), a cam member (52) being fixed at the top end of the shaft column, and one end of the cam member (52) being in contact with the outer wall of the vertical plate (41).

8. A stainless steel pipe spinning machine according to claim 7, characterized in that: The bottom end of the shaft column is rotatably connected to a mounting tube via a bearing, and the top end of the sliding sleeve (434) passes through the upper hollow shaft and is fixed in the mounting tube, so that when the shaft column rotates, the sliding sleeve (434) does not rotate together.

9. The stainless steel pipe spinning machine according to claim 1, characterized in that: The vertical moving mechanism (30) comprises a mounting seat mounted on the horizontal moving mechanism, an electric push rod is fixed in the middle of the outer wall of the mounting seat, both sides of the outer wall of the mounting seat are slidably connected to sliders via slide rails, the sliders are distributed in groups of two, and a moving seat is fixed on the outer wall of each group of sliders. The vertical plate (41) is fixed on the moving seat, and a connecting plate is fixed to the bottom ends of the two moving seats, and one end of the electric push rod is fixed to the connecting plate.

10. The stainless steel pipe spinning machine according to claim 1, characterized in that: The steel pipe positioning mechanism (20) comprises a base installed in the cabinet (10), the base is equipped with an installation box, the middle part of the installation box is rotatably connected to a placement shaft (21) for inserting and placing the stainless steel pipe, a motor is installed on the top wall of the installation box, the output end of the motor is fixed to the bottom end of the placement shaft (21), an electric hydraulic push rod is fixed to the top wall of the cabinet (10), one end of the electric hydraulic push rod is extended to a seat, and the bottom of the extended seat is rotatably connected to a pipe pressing shaft (22) adapted to the placement shaft (21).

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