Butt joint mechanism for stainless steel pipes

Abstract

The utility model discloses a butt joint mechanism for stainless steel tubes, which relates to the technical field of butt joint mechanisms, and comprises a mounting shell, two limiting shells are arranged at the rear end of the top of the outer wall of the mounting shell, the bottom of the outer wall of the limiting shell at the bottom is in contact with the rear end of the top of the outer wall of the mounting shell, and the butt joint mechanism further comprises a mounting mechanism, the number of the pulling plates is four, a second motor is started forwards and backwards to drive a two-way threaded rod to rotate, the two-way threaded rod drives clamping shells at the front end and the rear end to clamp a stainless steel pipe, and then a first motor is started forwards and backwards to drive a first threaded rod, a first sleeve shell, the clamping shells and the stainless steel pipe to ascend for feeding; in this way, the two stainless steel pipes can be rapidly, stably and safely fed so that follow-up machining can be facilitated, and the problems that due to the fact that manual feeding consumes a large amount of time, the efficiency of butt-jointed products is reduced, follow-up welding machining treatment is not facilitated, and the quality and stability of the products are badly affected are avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of docking mechanisms, and particularly relates to a docking mechanism for stainless steel pipes. Background Art

[0002] The docking mechanisms of stainless steel pipes mainly include welded connections, press-fit connections, etc. These technologies aim to ensure the safety and reliability of pipe connections while improving construction efficiency. In modern construction projects, the use of stainless steel pipes is becoming increasingly common, and the connection methods and technologies of their docking mechanisms are particularly important.

[0003] Existing equipment is mainly designed for the safety and reliability of stainless steel pipe connections. There is a lack of corresponding feeding structures for the docking of stainless steel pipes. Currently, the feeding of stainless steel pipes is usually carried out manually by workers. Manual feeding consumes a lot of time, resulting in a reduction in the efficiency of the docked products, which is not conducive to subsequent welding and processing, and will also have an adverse impact on the quality and stability of the products. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a docking mechanism for stainless steel pipes. Through the installation mechanism, it solves the problem that the feeding of stainless steel pipes is usually carried out manually by workers. Manual feeding consumes a lot of time, resulting in a reduction in the efficiency of the docked products, which is not conducive to subsequent welding and processing, and will also have an adverse impact on the quality and stability of the products.

[0005] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0006] The utility model is a docking mechanism for stainless steel pipes, including an installation shell. At the rear end of the top of the outer wall of the installation shell, there are two limit shells. The bottom of the outer wall of the lower limit shell is in contact with the rear end of the top of the outer wall of the installation shell. It also includes an installation mechanism. The installation mechanism includes a first fixed shell fixedly connected to the center of the bottom of the inner wall of the lower limit shell. At the bottom of the inner wall of the first fixed shell, there is a first motor fixedly connected. The output end of the first motor is fixedly connected to a first threaded rod. A first sleeve is sleeved and threadedly connected to the outer wall of the first threaded rod. The outer wall of the first sleeve is in contact with the inner wall of the first fixed shell. At the front and rear ends of the left and right sides of the inner wall of the upper limit shell and the front and rear ends and the left and right sides of the inner wall of the lower limit shell, there are sliding rods sleeved and slidably connected. At the front and rear ends of the outer walls of the sliding rods at the left bottom and the right top and the right bottom and the left top, there are several pulling plates sleeved and rotatably connected. The number of the pulling plates is four. At the front and rear ends of the outer walls of the sliding rods at the left bottom and the right top and the right bottom and the left top, there are several pulling plates sleeved and rotatably connected. The number of the pulling plates is four.

[0007] Further, the inner walls of the two front draw plates and the inner walls of the two rear draw plates are sleeved and rotatably connected with limiting rods. The center of the outer wall of the limiting rod is sleeved and rotatably connected with the top center of the front end of the outer wall of the first housing. On the left and right sides of the top of the outer wall of the top limiting housing, fixed housings are fixedly connected. The rear ends of the inner walls of the two fixed housings are sleeved and fixedly connected with second motors. The output ends of the two second motors are fixedly connected with bidirectional threaded rods. The front ends of the two bidirectional threaded rods are rotatably connected with the front ends of the inner walls of the two fixed housings. The front and rear ends of the outer walls of the two bidirectional threaded rods are sleeved and threadedly connected with clamping housings. The outer walls of the two bidirectional threaded rods are sleeved and slidably connected with the inner walls of the fixed housings.

[0008] Further, a connecting mechanism is arranged on the top of the outer wall of the top limiting housing. The connecting mechanism includes a top housing fixedly connected to the top of the outer wall of the top limiting housing. The front inner wall of the top housing is sleeved and fixedly connected with a third motor. The output end of the third motor is fixedly connected with a rotating shaft. The rear end of the outer wall of the rotating shaft is sleeved and fixedly connected with a gear. On the left top and right bottom of the inner wall of the top housing, tooth plates are sleeved and slidably connected.

[0009] Further, the outer walls of the two tooth plates on the side close to each other are meshed with the inner wall of the gear. The front ends of the outer walls of the two tooth plates are fixedly connected with sliding plates. The rear outer walls of the sliding plates are sleeved and slidably connected with the inner wall of the top housing.

[0010] Further, the inner walls of the two sliding plates on the side close to each other are sleeved and fixedly connected with second fixed housings. The inner walls of the two second fixed housings on the side close to each other are sleeved and fixedly connected with fourth motors.

[0011] Further, the output ends of the two fourth motors are fixedly connected with second threaded rods. The outer walls of the two second threaded rods are sleeved and threadedly connected with second housings. The outer walls of the two second housings are in contact with the inner walls of the second fixed housings.

[0012] Further, a number of connecting housings are arranged on the outer walls of the two second fixed housings and the second housings. The bottom of the outer wall of the connecting housing on the left side of the bottom is fixedly connected with the outer wall of the second housing. The bottom of the outer wall of the connecting housing on the right side of the bottom is fixedly connected with the outer wall of the second fixed housing.

[0013] Further, connecting plates are rotatably connected to the inner walls of the second housings on the left side of the bottom and the right side of the top and the outer walls of the second housings on the right side of the bottom and the left side of the top. The front end of the front connecting plate is rotatably connected with the rear connecting plate. The tops of the outer walls of the connecting housings on the left and right sides of the top are fixedly connected with abutting housings.

[0014] The utility model has the following beneficial effects:

[0015] 1. By setting, specifically, the second motor is started forward and backward to drive the bidirectional threaded rod to rotate. The bidirectional threaded rod drives the clamping shells at the front end and the rear end to clamp the stainless steel pipe. Then, the first motor is started forward and backward to drive the first threaded rod, the first sleeve, the clamping shell and the stainless steel pipe to rise for feeding. In this way, two stainless steel pipes can be quickly and stably fed for subsequent processing, avoiding the consumption of a large amount of time in manual feeding, resulting in a reduction in the efficiency of the butt-jointed products, being unfavorable for subsequent welding processing, and having an adverse impact on the quality and stability of the products.

[0016] 2. By setting, specifically, the third motor is started forward and backward. The third motor drives the rotating shaft, the gear and the tooth plates on the left and right sides to move, and the sliding plate and the abutting shell are used to clamp and fit the two stainless steel pipes. Then, the fourth motor is started forward and backward to drive the second threaded rod, the second sleeve and the abutting shell to open and expand and contract, and contact and fit with the inner wall of the stainless steel pipe for clamping, realizing the effective clamping and positioning of the stainless steel pipe, improving the butt-joint accuracy of the stainless steel pipe, and thus ensuring the accuracy and stability of the welding processing process.

[0017] Of course, it is not necessary for any product implementing the present utility model to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for describing the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0020] Figure 2 It is a schematic diagram of the partial sectional structure of the present utility model;

[0021] Figure 3 It is a schematic diagram of the installation mechanism structure of the present utility model;

[0022] Figure 4 It is a schematic diagram of the connection mechanism structure of the present utility model;

[0023] Figure 5 It is a schematic diagram of the partial enlarged structure of the connection mechanism of the present utility model.

[0024] In the drawings, the list of components represented by each reference numeral is as follows:

[0025] 1. Installation shell; 11. Limiting shell; 2. Installation mechanism; 21. First fixed shell; 22. First motor; 23. First threaded rod; 24. First sleeve shell; 25. Slide bar; 26. Pulling plate; 27. Limiting rod; 28. Fixed shell; 29. Second motor; 210. Bidirectional threaded rod; 211. Clamping shell; 3. Connection mechanism; 31. Top shell; 32. Third motor; 33. Rotating shaft; 34. Gear; 35. Rack; 36. Slide plate; 37. Second fixed shell; 38. Fourth motor; 39. Second threaded rod; 310. Second sleeve shell; 311. Connection shell; 312. Connection plate; 313. Contact shell. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0027] Please refer to Figures 1-5 As shown in the figure, the present utility model is a docking mechanism for stainless steel pipes, including an installation shell 1. Two limiting shells 11 are provided at the rear end of the top of the outer wall of the installation shell 1. The bottom of the outer wall of the limiting shell 11 at the bottom is in contact with the rear end of the top of the outer wall of the installation shell 1. It also includes;

[0028] An installation mechanism 2. The installation mechanism 2 includes a first fixed shell 21 fixedly connected to the center of the bottom of the inner wall of the limiting shell 11 at the bottom. A first motor 22 is fixedly connected to the bottom of the inner wall of the first fixed shell 21. The output end of the first motor 22 is fixedly connected to a first threaded rod 23. A first sleeve shell 24 is sleeved and threadedly connected to the outer wall of the first threaded rod 23. The outer wall of the first sleeve shell 24 is in contact with the inner wall of the first fixed shell 21. The left and right sides of the front and rear ends of the inner wall of the limiting shell 11 at the top and the front and rear ends and the left and right sides of the inner wall of the limiting shell 11 at the bottom are all sleeved and slidably connected with slide bars 25. The slide bars 25 at the left bottom and the right top are located on the right At the front and rear ends of the outer wall of the slide bar 25 on the left side top of the part, several pull plates 26 are sleeved and rotatably connected. The number of the pull plates 26 is four. Place the two stainless steel pipes to be welded at the bottom inner wall of the installation shell 1, and make the two stainless steel pipes fit. At this time, start the second motors 29 on the left and right sides. The two second motors 29 respectively drive the two bidirectional threaded rods 210 to rotate. The two bidirectional threaded rods 210 respectively drive the front and rear clamping shells 211 to clamp the two stainless steel pipes. At this time, start the first motor 22. The first motor 22 drives the first threaded rod 23 to rotate. The first threaded rod 23 drives the first sleeve 24 to move upward on the inner wall of the first fixed shell 21. The first sleeve 24 drives the limit rod 27 to move upward. The limit rod 27 drives the pull plates 26 at the front and rear ends on the left and right sides and the two slide bars 25 at the bottom to move in the direction of the first fixed shell 21 on the inner wall of the bottom limit shell 11.

[0029] The inner walls of the two front pull plates 26 and the inner walls of the two rear pull plates 26 are both sleeved and rotatably connected with the limit rods 27. The center of the outer wall of the limit rod 27 is sleeved and rotatably connected with the center of the front top of the outer wall of the first sleeve 24. On the left and right sides of the top of the outer wall of the top limit shell 11, fixed shells 28 are fixedly connected. The rear ends of the inner walls of the two fixed shells 28 are both sleeved and fixedly connected with the second motors 29. The output ends of the two second motors 29 are both fixedly connected with the bidirectional threaded rods 210. The front ends of the two bidirectional threaded rods 210 are rotatably connected with the front ends of the inner walls of the two fixed shells 28. The front and rear ends of the outer walls of the two bidirectional threaded rods 210 are both sleeved and threadedly connected with the clamping shells 211. The outer walls of the two bidirectional threaded rods 210 are sleeved and slidably connected with the inner walls of the fixed shells 28. The pull plates 26 at the front and rear ends on the left and right sides drive the two upper slide bars 25 to move in the direction of the first fixed shell 21. The two pull plates 26 drive the two upper slide bars 25 and the top limit shell 11 to rise. The top limit shell 11 drives the fixed shells 28 on the left and right sides, the second motors 29 and the bidirectional threaded rods 210 to rise. The bidirectional threaded rod 210 drives the two clamping shells 211 and the stainless steel pipes to rise. By starting the second motor 29 in the forward and reverse directions to drive the bidirectional threaded rod 210 to rotate, the bidirectional threaded rod 210 drives the front and rear clamping shells 211 to clamp the stainless steel pipes. Then, by starting the first motor 22 in the forward and reverse directions to drive the first threaded rod 23, the first sleeve 24, the clamping shell 211 and the stainless steel pipes to rise for feeding. In this way, the two stainless steel pipes can be quickly and stably fed for subsequent processing, avoiding that manual feeding consumes a lot of time, resulting in a reduction in the efficiency of the butt-jointed products and being unfavorable for subsequent welding processing, and having an adverse impact on the quality and stability of the products.

[0030] A connecting mechanism 3 is provided at the top of the outer wall of the top limiting shell 11. The connecting mechanism 3 includes a top shell 31 fixedly connected to the top of the outer wall of the top limiting shell 11. A third motor 32 is sleeved and fixedly connected to the inner wall of the front end of the top shell 31. The output end of the third motor 32 is fixedly connected to a rotating shaft 33. A gear 34 is sleeved and fixedly connected to the rear end of the outer wall of the rotating shaft 33. Tooth plates 35 are sleeved and slidably connected to the top of the left inner wall and the bottom of the right inner wall of the top shell 31. The third motor 32 drives the rotating shaft 33 and the gear 34 to rotate, and the gear 34 drives the left tooth plate 35 and the right tooth plate 35 to move towards the third motor 32 respectively.

[0031] The meshing connection is made between the outer walls of the mutually approaching sides of the two tooth plates 35 and the inner wall of the gear 34. The front end outer walls of the two tooth plates 35 are fixedly connected with sliding plates 36. The rear end outer walls of the sliding plates 36 are sleeved and slidably connected to the inner wall of the top shell 31. The two tooth plates 35 respectively drive the sliding plates 36 and the second fixed shell 37 to move towards the third motor 32.

[0032] Second fixed shells 37 are sleeved and fixedly connected to the inner walls of the mutually approaching sides of the two sliding plates 36. A fourth motor 38 is sleeved and fixedly connected to the inner walls of the mutually approaching sides of the two second fixed shells 37. The second fixed shell 37 drives the fourth motor 38, the second threaded rod 39 and the second sleeve 310 to move. The second sleeve 310 drives the connection shell 311, the connecting plate 312 and the abutting shell 313 to contact the inner wall of the stainless steel pipe.

[0033] The output ends of the two fourth motors 38 are fixedly connected with second threaded rods 39. Second sleeves 310 are sleeved and threadedly connected to the outer walls of the two second threaded rods 39. The outer walls of the two second sleeves 310 are in contact with the inner wall of the second fixed shell 37. The fourth motor 38 drives the second threaded rod 39 to rotate, and the second threaded rod 39 drives the second sleeve 310 to slide on the inner wall of the second fixed shell 37.

[0034] A number of connection shells 311 are provided on the outer walls of the two second fixed shells 37 and the second sleeve 310. The bottom of the outer wall of the connection shell 311 on the left side at the bottom is fixedly connected to the outer wall of the second sleeve 310. The bottom of the outer wall of the connection shell 311 on the right side at the bottom is fixedly connected to the outer wall of the second fixed shell 37. The second sleeve 310 drives the left connection shell 311 and the left connecting plate 312 to rotate. The left connecting plate 312 drives the right connecting plate 312, and the connection shells 311 and the abutting shell 313 at the top left and right to rise, so that the abutting shell 313 is adapted to support and clamp the inner wall of the stainless steel pipe, and cooperate with the two sliding plates 36 to tightly clamp the two stainless steel pipes together.

[0035] On the inner wall of the second set of shells 310 at the bottom left and top right and on the outer wall of the second set of shells 310 at the bottom right and top left, connecting plates 312 are rotatably connected. The front end of the connecting plate 312 at the front end is rotatably connected to the connecting plate 312 at the rear end. At the top of the outer walls of the connecting shells 311 on the left and right sides of the top, a housing 313 is fixedly connected. By starting the third motor 32 forward and backward, the third motor 32 drives the rotating shaft 33, the gear 34 and the left and right toothed plates 35 to move, and the sliding plate 36 is matched with the housing 313 to clamp and fit the two stainless steel pipes. Then, by starting the fourth motor 38 forward and backward, the second threaded rod 39, the second set of shells 310 and the housing 313 are driven to open and expand, and are in contact and adapted to clamp the inner wall of the stainless steel pipe, realizing effective clamping and positioning of the stainless steel pipe, improving the docking precision of the stainless steel pipe, and thus ensuring the accuracy and stability of the welding process.

[0036] A specific application of this embodiment is as follows: When using this device, place the two stainless steel pipes to be welded at the bottom of the inner wall of the installation shell 1 and make the two stainless steel pipes fit. At this time, start the second motors 29 on the left and right sides. The two second motors 29 drive the two bidirectional threaded rods 210 to rotate respectively. The two bidirectional threaded rods 210 drive the front and rear clamping shells 211 on both sides to clamp the two stainless steel pipes. At this time, start the first motor 22. The first motor 22 drives the first threaded rod 23 to rotate. The first threaded rod 23 drives the first set of shells 24 to move upward on the inner wall of the first fixed shell 21. The first set of shells 24 drives the limit rods 27 to move upward. The limit rods 27 drive the left and right front and rear pull plates 26 and the two sliding rods 25 at the bottom to move in the inner wall of the bottom limit shell 11 towards the first fixed shell 21. The left and right front and rear pull plates 26 drive the two sliding rods 25 above to move towards the first fixed shell 21. The two pull plates 26 drive the two sliding rods 25 above to rise with the top limit shell 11. The top limit shell 11 drives the left and right fixed shells 28, the second motors 29 and the bidirectional threaded rods 210 to rise. The bidirectional threaded rods 210 drive the two clamping shells 211 and the stainless steel pipes to rise. By starting the second motors 29 forward and backward to drive the bidirectional threaded rods 210 to rotate, the bidirectional threaded rods 210 drive the front and rear clamping shells 211 to clamp the stainless steel pipes. Then, by starting the first motor 22 forward and backward to drive the first threaded rod 23, the first set of shells 24, the clamping shells 211 and the stainless steel pipes to rise for feeding, the two stainless steel pipes can be quickly and stably fed for subsequent processing, avoiding the time-consuming manual feeding, resulting in reduced efficiency of the docked products, being unfavorable for subsequent welding processing, and having an adverse impact on the quality and stability of the products.

[0037] When using this device, start the third motor 32. The third motor 32 drives the rotation of the rotating shaft 33 and the gear 34. The gear 34 drives the left and right rack plates 35 to move towards the third motor 32 respectively. The two rack plates 35 drive the slide plate 36 and the second fixed housing 37 to move towards the third motor 32 respectively. The second fixed housing 37 drives the fourth motor 38, the second threaded rod 39 and the second sleeve 310 to move. The second sleeve 310 drives the connection housing 311, the connecting plate 312, the abutting housing 313 to contact the inner wall of the stainless steel pipe. At this time, start the fourth motor 38. The fourth motor 38 drives the rotation of the second threaded rod 39. The second threaded rod 39 drives the second sleeve 310 to slide on the inner wall of the second fixed housing 37. The second sleeve 310 drives the left connection housing 311 and the left connecting plate 312 to rotate. The left connecting plate 312 drives the right connecting plate 312, and the connection housings 311 and the abutting housing 313 on the left and right at the top to rise, so that the abutting housing 313 is adapted to support and clamp the inner wall of the stainless steel pipe, and cooperate with the two slide plates 36 to clamp the two stainless steel pipes tightly together. By starting the third motor 32 forward and backward, the third motor 32 drives the rotating shaft 33, the gear 34 and the left and right rack plates 35 to move, and the slide plate 36 and the abutting housing 313 cooperate to clamp and fit the two stainless steel pipes. Then, by starting the fourth motor 38 forward and backward, the second threaded rod 39, the second sleeve 310 and the abutting housing 313 are driven to open and expand, and contact and fit the inner wall of the stainless steel pipe to clamp, realizing the effective clamping and positioning of the stainless steel pipe, improving the docking precision of the stainless steel pipe, and thus ensuring the accuracy and stability of the welding process.

[0038] In the description of this specification, the description referring to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0039] The above - disclosed preferred embodiments of the present invention are only used to help illustrate the present invention. The preferred embodiments do not elaborate all the details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. This specification selects and specifically describes these embodiments to better explain the principle and practical application of the present invention, so that those skilled in the relevant technical field can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A butt joint mechanism for a stainless steel pipe, comprising a mounting shell (1). At the rear end of the top of the outer wall of the mounting shell (1), there are two limiting shells (11). The bottom of the outer wall of the limiting shell (11) located at the bottom is in contact with the rear end of the top of the outer wall of the mounting shell (1). It is characterized in that: Further included are; An installation mechanism (2), the installation mechanism (2) includes a first fixed shell (21) fixedly connected to the center of the inner wall of the bottom limiting shell (11) at the bottom. A first motor (22) is fixedly connected to the bottom of the inner wall of the first fixed shell (21). The output end of the first motor (22) is fixedly connected to a first threaded rod (23). A first sleeve (24) is sleeved and threadedly connected to the outer wall of the first threaded rod (23). The outer wall of the first sleeve (24) is in contact with the inner wall of the first fixed shell (21). On the front, rear, left, and right sides of the inner wall of the top limiting shell (11), sliding rods (25) are sleeved and slidably connected to the front, rear, left, and right sides of the inner wall of the bottom limiting shell (11). On the front and rear ends of the outer walls of the sliding rods (25) at the left bottom and right top and the sliding rods (25) at the right bottom and left top, a plurality of pull plates (26) are sleeved and rotatably connected. The number of the pull plates (26) is four.

2. The butt joint mechanism for a stainless steel pipe according to claim 1, characterized in that, Limit rods (27) are sleeved and rotatably connected to the inner walls of the two front pull plates (26) and the inner walls of the two rear pull plates (26). The center of the outer wall of the limit rod (27) is sleeved and rotatably connected to the center of the front top of the outer wall of the first sleeve (24). On the left and right sides of the top of the outer wall of the top limiting shell (11), fixed shells (28) are fixedly connected. Second motors (29) are sleeved and fixedly connected to the rear ends of the inner walls of the two fixed shells (28). The output ends of the two second motors (29) are fixedly connected to bidirectional threaded rods (210). The front ends of the two bidirectional threaded rods (210) are rotatably connected to the front ends of the inner walls of the two fixed shells (28). Clamping shells (211) are sleeved and threadedly connected to the front and rear ends of the outer walls of the two bidirectional threaded rods (210). The outer walls of the two bidirectional threaded rods (210) are sleeved and slidably connected to the inner walls of the fixed shells (28).

3. The butt joint mechanism for stainless steel pipes according to claim 2, characterized in that, A connection mechanism (3) is arranged on the top of the outer wall of the top limiting shell (11). The connection mechanism (3) includes a top shell (31) fixedly connected to the top of the outer wall of the top limiting shell (11). A third motor (32) is sleeved and fixedly connected to the front inner wall of the top shell (31). The output end of the third motor (32) is fixedly connected to a rotating shaft (33). A gear (34) is sleeved and fixedly connected to the rear end of the outer wall of the rotating shaft (33). Tooth plates (35) are sleeved and slidably connected to the left top and right bottom of the inner wall of the top shell (31).

4. The butt joint mechanism for stainless steel pipes according to claim 3, characterized in that, The outer walls of the two tooth plates (35) on the side close to each other are meshed with the inner wall of the gear (34). The front ends of the outer walls of the two tooth plates (35) are fixedly connected with sliding plates (36). The rear end of the outer wall of the sliding plate (36) is sleeved and slidably connected to the inner wall of the top shell (31).

5. A butt joint mechanism for a stainless steel pipe according to claim 4, characterized in that, Second fixed shells (37) are sleeved and fixedly connected to the inner walls of the two sliding plates (36) on the side close to each other. A fourth motor (38) is sleeved and fixedly connected to the inner walls of the two second fixed shells (37) on the side close to each other.

6. The butt joint mechanism for a stainless steel pipe according to claim 5, characterized in that, Output ends of the two fourth motors (38) are fixedly connected with second threaded rods (39). Outer walls of the two second threaded rods (39) are sleeved with and threadedly connected to second sleeves (310). Outer walls of the two second sleeves (310) are in contact with inner walls of a second fixed housing (37).

7. A butt joint mechanism for a stainless steel pipe according to claim 6, characterized in that, Outer walls of the two second fixed housings (37) and the second sleeves (310) are provided with a plurality of connecting housings (311). A bottom of an outer wall of the connecting housing (311) located at the left side of the bottom is fixedly connected with an outer wall of the second sleeve (310). A bottom of an outer wall of the connecting housing (311) located at the right side of the bottom is fixedly connected with an outer wall of the second fixed housing (37).

8. A butt joint mechanism for a stainless steel pipe according to claim 7, characterized in that, Inner walls of the second sleeves (310) located at the left side of the bottom and the right side of the top and outer walls of the second sleeves (310) located at the right side of the bottom and the left side of the top are rotatably connected with connecting plates (312). A front end of the connecting plate (312) located at the front end is rotatably connected with a front end of the rear connecting plate (312). Tops of outer walls of the connecting housings (311) located at the left side and the right side of the top are fixedly connected with abutting housings (313).

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