Bending machine for stainless steel pipe

Abstract

The utility model discloses a bending machine for stainless steel pipes, which relates to the technical field of steel pipe bending and comprises an outer shell, a first upper limit block, a first lower limit block, a second upper limit block and a second lower limit block. A limiting plate is moved so that the limiting plate can completely enter a first T-shaped sliding block, the distance between a first upper limiting block and a first lower limiting block and the distance between a second upper limiting block and a second lower limiting block can be increased, and the bent stainless steel pipe can be conveniently taken out; a limiting plate is clamped into a through hole, so that the distance between a first upper limiting block and a first lower limiting block and the distance between a second upper limiting block and a second lower limiting block can be changed, and stainless steel pipes of various different sizes can be bent conveniently; and the limiting plate can be driven to completely enter the first T-shaped sliding block by pressing the first push plate and the second push plate, so that limiting of the first upper limiting block and the second upper limiting block is conveniently relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe bending, in particular to a bending machine for stainless steel pipes. Background Art

[0002] Stainless steel pipe is a hollow long round steel, mainly used in industrial pipelines such as petroleum, chemical, medical, food, light industry, mechanical instruments, and mechanical structural components. Stainless steel pipe is lighter in weight when the bending and torsional strength are the same, so it is also widely used in the manufacture of mechanical parts and engineering structures. Stainless steel pipe needs to be bent during the processing, and a bending machine is usually used to bend stainless steel pipe.

[0003] For example, a steel pipe bending machine disclosed in the utility model with authorization announcement number CN220591222U places the steel pipe between a plurality of limit blocks 2 and two limit blocks 1, and rotates the adjusting dial to drive the threaded rod to rotate, which can drive the connecting plate to slide downward, thereby bending the steel pipe. By setting a telescopic rod, the telescopic rod rotates downward and stretches with the movement of the connecting plate 1, and the angle between the two telescopic rods and the bending angle of the steel pipe can be known through the angle marking.

[0004] This prior art also has the following problems when used:

[0005] When the heights of the connecting plate 1 and the two connecting plates 2 of the device are the same, the steel pipe can be placed between several limit blocks 2 and between two limit blocks 1. However, after the device completes the bending of the steel pipe, it is difficult to take out the bent steel pipe due to the limitation of the limit blocks 1 and 2. The distance between the two limit blocks 1 of the device remains unchanged, which makes it difficult for the device to bend steel pipes of different sizes. Utility Model Content

[0006] In order to overcome the deficiencies of the prior art, the utility model provides a stainless steel pipe bending machine to solve the technical problems mentioned in the above background.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a stainless steel pipe bending machine, comprising an outer shell, a first upper limit block, a first lower limit block, a second upper limit block and a second lower limit block, wherein a symmetrical first upper limit block and a first lower limit block and two sets of symmetrical second upper limit blocks and a second lower limit block are arranged in front of the outer shell;

[0008] A lifting component, which is arranged on the back of the first upper limit block and the second upper limit block, and the lifting component can release the limit of the first upper limit block and the second upper limit block and drive the first upper limit block and the second upper limit block to move upward;

[0009] A through hole, which is arranged on the back of the lifting assembly, and the through hole can conveniently limit the positions of the first upper limit block and the second upper limit block;

[0010] A pressing assembly is arranged behind the lifting assembly, and the pressing assembly can conveniently release the limit of the first upper limit block and the second upper limit block.

[0011] The top surface of the second support frame is fixedly provided with a knob, and a threaded rod is fixedly provided on the bottom surface of the knob, and a lifting plate is threadedly connected to the outer surface of the threaded rod, and a lifting plate is connected to the lifting plate by a thread. A connecting block is fixedly provided between the lifting plate and the first connecting block, and a first vertical groove adapted to adapt to the connecting block is provided on the front surface of the shell body, and the connecting block is slidably connected to the shell body through the first vertical groove, and a second vertical groove is provided inside the shell body, the threaded rod penetrates the shell body to the inside of the second vertical groove, and the bottom of the threaded rod is rotatably connected to the bottom of the second vertical groove through a bearing, and a guide rod is fixedly provided between the top surface and the bottom surface of the second vertical groove, and the guide rod penetrates the lifting plate and is slidably connected to the lifting plate.

[0012] As a preferred technical solution of the utility model, the lifting assembly includes a first T-shaped slider, a first spring, a second spring and a limit plate. The first upper limit block and the second upper limit block are both fixedly provided with the first T-shaped slider on the back, the first spring is fixedly provided on the top surface of the first T-shaped slider, a limit plate is provided inside the first T-shaped slider, and the second spring is fixedly provided on the side of the limit plate.

[0013] As a preferred technical solution of the present utility model, the first connecting plate and the second connecting plate are both provided with a first T-shaped slide groove adapted to the first T-shaped slider on the front side, the first T-shaped slide groove is respectively slidably connected to the first connecting plate and the second connecting plate through the first T-shaped slide groove, the first spring is fixedly connected to the inner wall of the first T-shaped slide groove at one end away from the first T-shaped slide groove, the first T-shaped slide groove is provided with a limiting groove adapted to the limiting plate inside, the limiting plate is slidably connected to the first T-shaped slide groove through the limiting groove, the second spring is fixedly connected to the inner wall of the limiting groove at one end away from the limiting plate, the through hole is provided on the back side of the first connecting plate and the second connecting plate, the through hole is connected to the first T-shaped slide groove, the limiting plate is adapted to the through hole, and the limiting plate is slidably connected to the first connecting plate and the second connecting plate through the through hole.

[0014] As a preferred technical solution of the utility model, the pressing assembly includes a first push rod, a first push plate, a second push rod, a second push plate, a second T-shaped slider, a sliding sheet and a third spring. A plurality of first push rods are arranged on the back of the first connecting plate, a first push plate is fixedly arranged on the back of the first push rod, a symmetrical sliding sheet is arranged in front of the first push plate, a second T-shaped slider is fixedly arranged on the front of the sliding sheet, a plurality of second push rods are arranged on the back of the second connecting plate, a second push plate is fixedly arranged on the back of the second push rod, and a symmetrical third spring is fixedly arranged on the front of the second push plate.

[0015] As a preferred technical solution of the present utility model, the first push rod is adapted to the through hole, and the first push rod is slidably connected to the first connecting plate through the through hole, and a third vertical groove adapted to the first push rod is provided on the back of the outer shell, and the first push rod is slidably connected to the outer shell through the third vertical groove, a fourth spring is fixedly provided on the front of the first push plate, and the other end of the fourth spring is fixedly connected to the sliding plate, and a second T-shaped slide groove adapted to the second T-shaped slider is provided on the back of the outer shell, and the second T-shaped slider is slidably connected to the outer shell through the second T-shaped slide groove, the second push rod is adapted to the through hole, and the second push rod is slidably connected to the second connecting plate through the through hole, the second push rod passes through the outer shell and is slidably connected to the outer shell, and one end of the third spring away from the second push plate is fixedly connected to the outer shell.

[0016] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0017] The utility model provides a lifting assembly, and moves the limit plate so that the limit plate completely enters the interior of the first T-shaped sliding block to release the limit of the first upper limit block and the second upper limit block. The stretched first spring pulls the first upper limit block and the second upper limit block to drive the first upper limit block and the second upper limit block to move upward, thereby increasing the spacing between the first upper limit block and the first lower limit block and the second upper limit block and the second lower limit block, which is convenient for taking out the bent stainless steel pipe. By providing a plurality of through holes, the limit plate is engaged with the through hole to limit the position of the first upper limit block or the second upper limit block, thereby changing the spacing between the first upper limit block and the first lower limit block and the second upper limit block and the second lower limit block, which is convenient for bending stainless steel pipes of various sizes. By providing a pressing assembly, pressing the first push plate and the second push plate can drive the limit plate to completely enter the interior of the first T-shaped sliding block, thereby facilitating the release of the limit of the first upper limit block and the second upper limit block. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front view of the main structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the left side view of the utility model;

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model in top view;

[0021] Figure 4 It is a schematic diagram of the back of the main structure of the utility model;

[0022] Wherein: 1. outer shell; 2. first connecting plate; 3. second connecting plate; 4. first upper limit block; 5. first lower limit block; 6. second upper limit block; 7. second lower limit block; 8. knob; 9. threaded rod; 10. connecting block; 11. lifting plate; 12. first T-shaped slider; 13. first spring; 14. second spring; 15. limit plate; 16. first push rod; 17. first push plate; 18. second push rod; 19. second push plate; 20. second T-shaped slider; 21. slide; 22. third spring; 23. through hole. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0024] Example

[0025] Please refer to Figure 1-Figure 3 As shown, the utility model provides a bending machine for stainless steel pipes, comprising an outer shell 1, a first upper limit block 4, a first lower limit block 5, a second upper limit block 6 and a second lower limit block 7. The outer shell 1 is slidably connected to the first connecting plate 2 on the front side, the first connecting plate 2 is slidably connected to the first upper limit block 4 on the front side, the first connecting plate 2 is fixedly provided with a first lower limit block 5 on the front side, the first upper limit block 4 and the first lower limit block 5 are symmetrical, the outer shell 1 is fixedly provided with a symmetrical second connecting plate 3 on the front side, the second connecting plate 3 is slidably connected to the second upper limit block 6 on the front side, the second connecting plate 3 is fixedly provided with a second lower limit block 7 on the front side, the second upper limit block 6 and the second lower limit block 7 are symmetrical, the first upper limit block 4, the first lower limit block 5, the second upper limit block 6 and the second lower limit block 7 are the same in size and the outer sides are all arc-shaped, when the heights of the first connecting plate 2 and the second connecting plate 3 are the same, the heights of the first lower limit block 5 and the second lower limit block 7 are the same.

[0026] like Figure 1-Figure 4As shown, a knob 8 is rotatably connected to the top surface of the outer shell 1, a threaded rod 9 is fixedly provided on the bottom surface of the knob 8, a lifting plate 11 is threadedly connected to the outer side of the threaded rod 9, a connecting block 10 is fixedly provided between the lifting plate 11 and the first connecting plate 2, a first vertical groove adapted to the connecting block 10 is provided on the front side of the outer shell 1, the connecting block 10 is slidably connected to the outer shell 1 through the first vertical groove, a second vertical groove is provided inside the outer shell 1, the threaded rod 9 penetrates the outer shell 1 to the inside of the second vertical groove, the bottom of the threaded rod 9 is rotatably connected to the bottom of the second vertical groove through a bearing, a guide rod is fixedly provided between the top and bottom surfaces of the second vertical groove, the guide rod penetrates the lifting plate 11 and is slidably connected to the lifting plate 11, rotating the knob 8 drives the threaded rod 9 to rotate, which can drive the lifting plate 11 to move up and down, thereby driving the connecting block 10 and the first connecting plate 2 to move up and down, and when the first connecting plate 2 and the second connecting plate 3 are at the same height , pass the stainless steel pipe through the second upper limit block 6 and the second lower limit block 7 and between the first upper limit block 4 and the first lower limit block 5, rotate the knob 8 to drive the first connecting plate 2 to move downward, and the movement of the first connecting plate 2 drives the first upper limit block 4 and the first lower limit block 5 to move downward, so as to realize the bending of the stainless steel pipe, and the first lower limit block 5 is provided with an angle mark on the front side, and the first lower limit block 5 and the second lower limit block 7 are respectively fixed with a first fixed axis and a second fixed axis on the front side, and a telescopic rod is provided between the first lower limit block 5 and the second lower limit block 7, and both ends of the telescopic rod are respectively penetrated by the first fixed axis and the second fixed axis and are rotatably connected with the first fixed axis and the second fixed axis, and when the first lower limit block 5 moves downward, the telescopic rod extends and rotates downward, and the angle between the two telescopic rods can be known through the angle mark, thereby knowing the bending angle of the stainless steel pipe.

[0027] like Figure 1-Figure 3As shown, a lifting assembly is arranged on the back of the first upper limit block 4 and the second upper limit block 6, and the lifting assembly is composed of a first T-shaped slider 12, a first spring 13, a second spring 14 and a limit plate 15. The first upper limit block 4 and the second upper limit block 6 are both fixedly provided with a first T-shaped slider 12 on the back, and the first connecting plate 2 and the second connecting plate 3 are both provided with a first T-shaped slot adapted to the first T-shaped slider 12 on the front. The first T-shaped slider 12 is slidably connected to the first connecting plate 2 and the second connecting plate 3 respectively through the first T-shaped slot, and the top surface of the first T-shaped slider 12 is fixedly provided with a A first spring 13 is arranged, and the first spring 13 is always in an extended state. One end of the first spring 13 away from the first T-shaped slider 12 is fixedly connected to the inner wall of the first T-shaped slide groove. A limiting plate 15 is arranged inside the first T-shaped slider 12. A limiting groove adapted to the limiting plate 15 is arranged inside the first T-shaped slider 12. The limiting plate 15 is slidably connected to the first T-shaped slider 12 through the limiting groove. A second spring 14 is fixedly arranged on the side of the limiting plate 15. One end of the second spring 14 away from the limiting plate 15 is fixedly connected to the inner wall of the limiting groove. The limiting plate 15 is moved so that the limiting plate 15 is 5 completely enters the first T-shaped slider 12 to release the limit of the first upper limit block 4 and the second upper limit block 6, the second spring 14 is compressed, and the stretched first spring 13 pulls the first upper limit block 4 and the second upper limit block 6 to drive the first upper limit block 4 and the second upper limit block 6 to move upward, thereby increasing the spacing between the first upper limit block 4 and the first lower limit block 5 and the second upper limit block 6 and the second lower limit block 7, making it convenient to take out the bent stainless steel pipe. A plurality of through holes 23 are arranged on the back of the lifting assembly, and the through holes 23 are arranged on the first connecting plate 2 and the back of the second connecting plate 3, the through hole 23 is connected with the first T-shaped slide groove, the limit plate 15 is adapted to the through hole 23, and the limit plate 15 is slidably connected with the first connecting plate 2 and the second connecting plate 3 through the through hole 23 respectively. By setting a plurality of through holes 23, the limit plate 15 is engaged with the inside of the through hole 23 to limit the position of the first upper limit block 4 or the second upper limit block 6, thereby changing the spacing between the first upper limit block 4 and the first lower limit block 5 and the second upper limit block 6 and the second lower limit block 7, so as to facilitate the bending of stainless steel pipes of various sizes.

[0028] like Figure 1-Figure 4As shown, a pressing assembly is arranged at the rear of the lifting assembly, and the pressing assembly is composed of a first push rod 16, a first push plate 17, a second push rod 18, a second push plate 19, a second T-shaped slider 20, a slide 21 and a third spring 22. A plurality of first push rods 16 are arranged on the back of the first connecting plate 2, and the first push rods 16 are adapted to the through holes 23. The first push rods 16 are slidably connected to the first connecting plate 2 through the through holes 23. A third vertical groove adapted to the first push rods 16 is arranged on the back of the outer shell 1, and the first push rods 16 are slidably connected to the outer shell 1 through the third vertical groove. A first push plate 17 is fixedly arranged on the back of the first push rod 16, a symmetrical slide plate 21 is arranged in front of the first push plate 17, a fourth spring is fixedly arranged on the front of the first push plate 17, the other end of the fourth spring is fixedly connected to the slide plate 21, a second T-shaped slider 20 is fixedly arranged on the front of the slide plate 21, a second T-shaped slide groove adapted to the second T-shaped slider 20 is arranged on the back of the outer shell 1, and the second T-shaped slider 20 is slidably connected to the outer shell 1 through the second T-shaped slide groove, and the end of the first push rod 16 away from the first push plate 17 is always arranged inside the through hole 23, The first connecting plate 2 moves up and down to drive the first push rod 16 to move up and down, thereby driving the first push plate 17, the second T-shaped slider 20, the slide 21 and the fourth spring to move up and down. A plurality of second push rods 18 are arranged on the back of the second connecting plate 3. The second push rods 18 are adapted to the through holes 23. The second push rods 18 are slidably connected to the second connecting plate 3 through the through holes 23. The second push rods 18 penetrate the outer shell 1 and are slidably connected to the outer shell 1. A second push plate 19 is fixedly arranged on the back of the second push rod 18, and a symmetrical push plate 19 is fixedly arranged on the front of the second push plate 19. The third spring 22, one end of the third spring 22 away from the second push plate 19 is fixedly connected to the outer shell 1, pressing the first push plate 17 and the second push plate 19 until the distance between the first push plate 17 and the second push plate 19 and the outer shell 1 reaches the minimum, and the first push plate 17 and the second push plate 19 move to drive the first push rod 16 and the second push rod 18 to push the limit plate 15 to move into the first T-shaped slider 12. At this time, the limit plate 15 just completely enters the first T-shaped slider 12, thereby facilitating the release of the limit of the first upper limit block 4 and the second upper limit block 6.

[0029] Specific working principle:

[0030] When the device is in use, rotating the knob 8 drives the threaded rod 9 to rotate, which can drive the lifting plate 11 to move up and down, thereby driving the connecting block 10 and the first connecting plate 2 to move up and down. The downward movement of the first connecting plate 2 can drive the first push rod 16 to move up and down, thereby driving the first push plate 17, the second T-shaped slider 20, the slide 21 and the fourth spring to move downward. When the first connecting plate 2 and the second connecting plate 3 are at the same height, the first push plate 17 and the second push plate 19 are pressed at the same time until the distance between the first push plate 17 and the second push plate 19 and the outer shell 1 reaches the minimum. The movement of the first push plate 17 and the second push plate 19 drives the first push rod 16 and the second push rod 18 to push the limit plate 15 to move inside the first T-shaped slider 12. At this time, the limit plate 15 just completely enters the first T-shaped slider 12, and the stretched first spring 13 pulls the first upper limit block 4 and the second upper limit block 6 to drive the first upper limit block 4 And the second upper limit block 6 moves upward, adjust the spacing between the first upper limit block 4 and the first lower limit block 5 according to the size of the stainless steel pipe, and at the same time align the limit plate 15 to the through hole 23, and then release the first push plate 17 and the second push plate 19, the second spring 14 pushes the limit plate 15 to engage with the inside of the through hole 23, thereby limiting the position of the first upper limit block 4 and the second upper limit block 6, and passing the stainless steel pipe between the second upper limit block 6 and the second lower limit block 7 and between the first upper limit block 4 and the first lower limit block 5, rotating the knob 8 to drive the first connecting plate 2 to move downward, and the movement of the first connecting plate 2 drives the first upper limit block 4 and the first lower limit block 5 to move downward, thereby realizing the bending of the stainless steel pipe, and when the first lower limit block 5 moves downward, the telescopic rod extends and rotates downward, and the angle between the two telescopic rods can be known through the angle mark, thereby knowing the bending angle of the stainless steel pipe.

[0031] After the device completes bending the stainless steel tube, the first push plate 17 and the second push plate 19 are pressed simultaneously until the distance between the first push plate 17 and the second push plate 19 and the outer shell 1 reaches the minimum. At this time, the limit plate 15 just completely enters the first T-shaped slider 12, and the stretched first spring 13 pulls the first upper limit block 4 and the second upper limit block 6 to drive the first upper limit block 4 and the second upper limit block 6 to move upward, thereby increasing the distance between the first upper limit block 4 and the first lower limit block 5 and the second upper limit block 6 and the second lower limit block 7, making it convenient to take out the bent stainless steel tube.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A bending machine for stainless steel pipes, comprising an outer shell (1), a first upper limit block (4), a first lower limit block (5), a second upper limit block (6) and a second lower limit block (7), wherein a symmetrical first upper limit block (4) and a first lower limit block (5) and two sets of symmetrical second upper limit blocks (6) and second lower limit blocks (7) are arranged in front of the outer shell (1), characterized in that: A lifting component, the lifting component is arranged on the back of the first upper limit block (4) and the second upper limit block (6), and the lifting component can release the limit of the first upper limit block (4) and the second upper limit block (6) and drive the first upper limit block (4) and the second upper limit block (6) to move upwards; A through hole (23), wherein the through hole (23) is arranged on the back of the lifting component, and the through hole (23) can conveniently limit the positions of the first upper limit block (4) and the second upper limit block (6); A pressing assembly is arranged behind the lifting assembly, and the pressing assembly can conveniently release the limit of the first upper limit block (4) and the second upper limit block (6).

2. A stainless steel pipe bending machine according to claim 1, characterized in that: The front face of the outer shell (1) is slidably connected to a first connecting plate (2), the front face of the first connecting plate (2) is slidably connected to a first upper limit block (4), the front face of the first connecting plate (2) is fixedly connected to a first lower limit block (5), the front face of the outer shell (1) is symmetrically fixedly provided with a second connecting plate (3), the front face of the second connecting plate (3) is slidably connected to a second upper limit block (6), the front face of the second connecting plate (3) is fixedly connected to a second lower limit block (7), the top face of the outer shell (1) is rotatably connected to a knob (8), the bottom face of the knob (8) is fixedly provided with a threaded rod (9), the outer side of the threaded rod (9) is threadedly connected to A lifting plate (11) is connected, a connecting block (10) is fixedly arranged between the lifting plate (11) and the first connecting plate (2), a first vertical groove adapted to the connecting block (10) is arranged on the front of the outer shell (1), the connecting block (10) is slidably connected to the outer shell (1) through the first vertical groove, a second vertical groove is arranged inside the outer shell (1), a threaded rod (9) passes through the outer shell (1) to the inside of the second vertical groove, the bottom of the threaded rod (9) is rotatably connected to the bottom of the second vertical groove through a bearing, a guide rod is fixedly arranged between the top surface and the bottom surface of the second vertical groove, the guide rod passes through the lifting plate (11) and is slidably connected to the lifting plate (11).

3. A stainless steel pipe bending machine according to claim 2, characterized in that: The lifting assembly comprises a first T-shaped slider (12), a first spring (13), a second spring (14) and a limit plate (15); the first upper limit block (4) and the second upper limit block (6) are both fixedly provided with the first T-shaped slider (12) on their backs; the first spring (13) is fixedly provided on the top surface of the first T-shaped slider (12); the limit plate (15) is provided inside the first T-shaped slider (12); and the second spring (14) is fixedly provided on the side surface of the limit plate (15).

4. A stainless steel pipe bending machine according to claim 3, characterized in that: The first connecting plate (2) and the second connecting plate (3) are both provided with a first T-shaped sliding groove adapted to the first T-shaped sliding block (12) on their front faces; the first T-shaped sliding block (12) is slidably connected to the first connecting plate (2) and the second connecting plate (3) respectively through the first T-shaped sliding groove; one end of the first spring (13) away from the first T-shaped sliding block (12) is fixedly connected to the inner wall of the first T-shaped sliding groove; a limiting groove adapted to the limiting plate (15) is provided inside the first T-shaped sliding block (12); the limiting plate The first connecting plate (15) is slidably connected to the first T-shaped sliding block (12) through the limiting groove, one end of the second spring (14) away from the limiting plate (15) is fixedly connected to the inner wall of the limiting groove, the through hole (23) is arranged on the back of the first connecting plate (2) and the second connecting plate (3), the through hole (23) is connected to the first T-shaped sliding groove, the limiting plate (15) is adapted to the through hole (23), and the limiting plate (15) is slidably connected to the first connecting plate (2) and the second connecting plate (3) through the through hole (23).

5. A stainless steel pipe bending machine according to claim 4, characterized in that: The pressing assembly comprises a first push rod (16), a first push plate (17), a second push rod (18), a second push plate (19), a second T-shaped slider (20), a slide sheet (21) and a third spring (22); a plurality of first push rods (16) are arranged on the back of the first connecting plate (2); a first push plate (17) is fixedly arranged on the back of the first push rod (16); a symmetrical slide sheet (21) is arranged in front of the first push plate (17); a second T-shaped slider (20) is fixedly arranged on the front of the slide sheet (21); a plurality of second push rods (18) are arranged on the back of the second push rod (18); a second push plate (19) is fixedly arranged on the back of the second push plate (19); and a symmetrical third spring (22) is fixedly arranged on the front of the second push plate (19).

6. A stainless steel pipe bending machine according to claim 5, characterized in that: The first push rod (16) is matched with the through hole (23), and the first push rod (16) is slidably connected to the first connecting plate (2) through the through hole (23). The back of the outer shell (1) is provided with a third vertical groove matched with the first push rod (16), and the first push rod (16) is slidably connected to the outer shell (1) through the third vertical groove. A fourth spring is fixedly provided on the front of the first push plate (17), and the other end of the fourth spring is fixedly connected to the sliding plate (21). The back of the outer shell (1) is provided with a fourth spring matched with the second connecting plate (21). A second T-shaped slide groove of the T-shaped slide block (20), the second T-shaped slide block (20) is slidably connected to the outer shell (1) through the second T-shaped slide groove, the second push rod (18) is adapted to the through hole (23), the second push rod (18) is slidably connected to the second connecting plate (3) through the through hole (23), the second push rod (18) passes through the outer shell (1) and is slidably connected to the outer shell (1), and one end of the third spring (22) away from the second push plate (19) is fixedly connected to the outer shell (1).

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