CN112191715A

CN112191715A - Metal pipe bending machine

Info

Publication number: CN112191715A
Application number: CN202011044472.9A
Authority: CN
Inventors: 程群; 张梅; 张晓宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-01-08

Abstract

The invention relates to the field of bending machines, in particular to a metal pipe bending machine which comprises a bending machine main body, wherein a fixing mechanism is installed on one side of the front surface of the bending machine main body, a recovery mechanism and a winding mechanism are installed on the other side of the front surface of the bending machine main body, the recovery mechanism is located above the winding mechanism and is in transmission connection with the winding mechanism, a power wire is fixedly connected to the other side of the front surface of the bending machine main body, the middle of the power wire is wound on the winding mechanism, one end of a power wire installation plug is clamped on the fixing mechanism, a support block is fixedly connected to one side of the upper end of the bending machine main. The bending machine main body is provided with the winding mechanism and the fixing mechanism, so that a power line can be wound on a winding disc of the winding mechanism when the bending machine main body is used, the power line is clamped by a bottom plate and a pressing plate of the fixing mechanism, and redundant power lines are fixed on the bending machine main body, so that the power line is prevented from being cut by sharp objects on the ground when the power line is dragged on the ground.

Description

Metal pipe bending machine

Technical Field

The invention relates to the field of bending machines, in particular to a metal pipe bending machine.

Background

The steel pipe bender is used for bending stainless steel and other non-ferrous metal thin-wall circular pipes, square pipes and rectangular pipes, is common steel pipe processing equipment, and can be used for bending metal pipes.

At present used steel pipe bender at the during operation, because the power cord is mostly longer, make a lot of power cords all drag subaerial, if there is sharp-pointed thing subaerial of work, the staff is when promoting steel pipe bender, the crust of power cord is cut badly by subaerial sharp-pointed thing easily, and need manually twine the power cord together when collecting, it is comparatively troublesome, if when will bending the operation to specific position on the metal tubular product, the staff need utilize the tape measure to measure metal tubular product then, mark, it is comparatively troublesome.

Disclosure of Invention

The invention provides a metal pipe bending machine, which solves the problems that when a steel pipe bending machine used at present works, because power lines are mostly long, a plurality of power lines are dragged on the ground, if sharp objects exist on the ground, when workers push the steel pipe bending machine, sheaths of the power lines are easily cut by the sharp objects on the ground, the power lines need to be wound together manually during collection, and the problems that the power lines are troublesome, and when the workers need to bend specific positions on the metal pipe, the metal pipe needs to be measured by a measuring tape and then marked are troublesome are solved.

The technical scheme adopted by the invention for solving the technical problems is as follows: a metal pipe bending machine comprises a bending machine main body, wherein a fixing mechanism is installed on one side of the front face of the bending machine main body, a recovery mechanism and a winding mechanism are installed on the other side of the front face of the bending machine main body, the recovery mechanism is located above the winding mechanism and is in transmission connection with the winding mechanism, a power line is fixedly connected to the other side of the front face of the bending machine main body, the middle of the power line is wound on the winding mechanism, one end of a power line installation plug is clamped on the fixing mechanism, a support block is fixedly connected to one side of the upper end of the bending machine main body, a first placing groove is formed in the end of the support block, the lower end of one side, away from the middle of the upper end of the bending machine main body, of the support block is hinged to a support plate through a hinge, a second placing groove is formed in the upper end of the support, the utility model discloses a bending machine, including support plate, bender main part, support plate, second spout, scale mark, stop gear, support plate, one side fixedly connected with extension board, one side middle part fixedly connected with fixing base of bender main part, the inside of fixing base is connected with the bracing piece through the loose axle rotation, the upper end of bracing piece is supported the contained angle department between extension board upper end and support plate lower extreme.

Specifically, retrieve the mechanism and include the mounting panel, the mounting panel is dismantled through a plurality of construction bolts and is connected in the bender main part, the front fixed even of mounting panel has the spring plate, the inside fixedly connected with pivot of spring plate, the first runner of one end fixedly connected with of spring plate is kept away from in the pivot.

Specifically, including the winding dish around rolling up the mechanism, the back middle part fixedly connected with fixed axle of winding dish, the one end rotation that the winding dish was kept away from to the fixed axle is connected in the bender main part, the positive middle part fixedly connected with second runner of winding dish, second runner and winding dish and fixed axle are located same central line, the second runner passes through the drive belt and retrieves the first runner transmission of mechanism and connects.

Specifically, fixed establishment includes the fixed plate, fixed plate fixed connection is in the bender main part, the positive lower extreme fixedly connected with bottom plate of fixed plate, first spout has been seted up to the positive middle part upper end of fixed plate, the positive upper end fixedly connected with roof of fixed plate, the middle part of roof runs through perpendicularly and threaded connection has first screw thread branch, the lower extreme of first screw thread branch rotates and is connected with the clamp plate, the first slider of back fixedly connected with of clamp plate, first slider sliding connection is inside first spout, the upper end fixedly connected with carousel of first screw thread branch.

Specifically, stop gear includes the cardboard, the cardboard is the U-shaped structure and blocks the front and back portion at the support plate, equal fixedly connected with second slider on the inner wall of cardboard front and back portion lower extreme, the equal sliding connection of second slider is in the inside of homonymy second spout, inside one side fixedly connected with baffle that is close to the bender main part of cardboard, one side that the bender main part was kept away from to the cardboard upper end is run through perpendicularly and threaded connection has second screw thread branch, the lower extreme of second screw thread branch rotates and is connected with the briquetting, the upper end fixedly connected with hand wheel of second screw thread branch.

Specifically, the support rod comprises a main rod, the lower end of the main rod is fixedly connected on a movable shaft, the outer walls of the two sides of the main rod are both provided with limiting grooves, the upper end of the main rod is provided with a jack, the outer wall of the circumference of the upper end of the main rod is sleeved and connected with a sleeve in a sliding way, the inner wall of the upper end of the sleeve is fixedly connected with a sliding rod, the lower end of the slide bar is inserted into the jack arranged on the main rod, a compression spring is sleeved on the partial circumferential outer wall of the slide bar positioned in the sleeve, the upper end of the compression spring is fixedly connected on the inner wall of the upper end of the sleeve, the lower end of the compression spring is fixedly connected on the upper end of the main rod, a plurality of friction grooves are arranged on the circumferential outer wall of the sleeve, a fixing head is fixedly connected on the outer wall of the upper end of the sleeve, the upper end of the fixing head is of a semicircular structure and abuts against an included angle between the upper end of the support plate and the lower end of the support plate.

Specifically, equal fixedly connected with stopper on the telescopic both sides lower extreme inner wall, the equal sliding connection of stopper is in homonymy spacing inslot portion.

Specifically, the middle part of the power cord is wound on a winding disc of the winding mechanism, and one end of the power cord, which is provided with the plug, is clamped between a bottom plate and a pressing plate of the fixing mechanism.

The invention has the beneficial effects that:

(1) the bending machine main body is provided with the winding mechanism and the fixing mechanism, so that a power line can be wound on a winding disc of the winding mechanism when the bending machine main body is used, the power line is clamped by a bottom plate and a pressing plate of the fixing mechanism, and redundant power lines are fixed on the bending machine main body, so that the power line is prevented from being cut by sharp objects on the ground when the power line is dragged on the ground.

(2) According to the bending machine, the recovery mechanism is arranged on the bending machine main body, the second rotating wheel of the winding mechanism is in transmission connection with the first rotating wheel of the recovery mechanism through the transmission belt, the rotating shaft can be rotated by the spring plate during collection, the rotating shaft rotates the first rotating wheel, and the rotating wheel rotates the second rotating wheel through the transmission belt, so that the winding plate is driven to rotate, a power wire is wound on the winding plate, manual winding of workers is not needed, and convenience is achieved.

(3) According to the bending machine, the support plate with the limiting mechanism is arranged on the bending machine main body, the scale marks are arranged on the support plate, when a specific position on a metal pipe is bent, the metal pipe can be clamped in the second placing groove formed in the support plate and is abutted against the baffle plate of the limiting mechanism, so that the clamping plate slides on the support plate, meanwhile, a worker can observe the scale marks pointed by the clamping plate, the purpose of measuring the metal pipe is achieved, and the bending machine is convenient.

Drawings

The invention is further illustrated with reference to the following figures and examples.

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

FIG. 2 is a schematic view of the connection structure of the recovery mechanism and the winding mechanism provided by the present invention;

FIG. 3 is a schematic structural view of a fixing mechanism provided in the present invention;

FIG. 4 is a schematic view of a support bar according to the present invention;

FIG. 5 is a schematic structural view of a limiting mechanism provided in the present invention;

fig. 6 is a top view of a carrier according to the present invention;

FIG. 7 is a schematic view of a structure of a pallet provided by the present invention.

In the figure: 1. a bender body; 2. a recovery mechanism; 21. mounting a plate; 22. installing a bolt; 23. a spring plate; 24. a rotating shaft; 25. a first runner; 3. a winding mechanism; 31. a winding disc; 32. a fixed shaft; 33. a second runner; 34. a transmission belt; 4. a fixing mechanism; 41. a fixing plate; 42. a base plate; 43. a first chute; 44. a top plate; 45. a first threaded strut; 46. pressing a plate; 47. a first slider; 48. a turntable; 5. a power line; 6. a fixed seat; 7. a movable shaft; 8. a support bar; 81. a main rod; 82. a jack; 83. a limiting groove; 84. a sleeve; 85. a limiting block; 86. a slide bar; 87. a compression spring; 88. a friction groove; 89. a fixed head; 9. a limiting mechanism; 91. clamping a plate; 92. a baffle plate; 93. a second threaded strut; 94. a hand wheel; 95. briquetting; 96. a second slider; 10. a support block; 11. a first placing groove; 12. a hinge; 13. a carrier plate; 14. a second placing groove; 15. a second chute; 16. scale lines; 17. and (4) a support plate.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-7, the metal pipe bending machine according to the present invention includes a bending machine main body 1, a fixing mechanism 4 is installed on one side of the front surface of the bending machine main body 1, a recovery mechanism 2 and a winding mechanism 3 are installed on the other side of the front surface of the bending machine main body 1, the recovery mechanism 2 is located above the winding mechanism 3 and is in transmission connection with the winding mechanism 3, a power cord 5 is fixedly connected to the other side of the front surface of the bending machine main body 1, the middle portion of the power cord 5 is wound on the winding mechanism 3, one end of the power cord 5, which is provided with a plug, is clamped on the fixing mechanism 4, a support block 10 is fixedly connected to one side of the upper end of the bending machine main body 1, a first placing groove 11 is formed on the end of the support block 10, a support plate 13 is hinged to the lower end of one side of the support block 10, which is far away, the utility model discloses a bending machine, including support plate 13, second standing groove 14, support plate 13, supporting rod 8, support plate 17, fixing base 6, supporting rod 8, supporting rod 17 upper end and contained angle department between supporting rod 17 upper end and support plate 13 lower extreme are supported to bracing piece 8 during the use, utilize supporting rod 8 to hold support plate 13, make the upper end of support plate 13 and bending machine main part 1 keep the level, conveniently put metal tubular product on support plate 13, the first standing groove 11 that offers on one side that second standing groove 14 is close to bending machine main part 1 and the tray 10 communicates with each other and aligns, second spout 15 has all been seted up to the front and back portion of support plate 13, scale mark 16 has all been seted up on the support plate 13 outer wall below second spout 15, the mid-mounting of support plate 13 has stop gear 9, one side fixedly connected with extension board 17 of bending.

Specifically, the limiting mechanism 9 includes a clamping plate 91, the clamping plate 91 is of a U-shaped structure and is clamped at the front and rear portions of the support plate 13, second sliders 96 are fixedly connected to the inner walls of the lower ends of the front and rear portions of the clamping plate 91, the second sliders 96 are slidably connected to the inner portions of the second chutes 15 on the same side, a baffle 92 is fixedly connected to one side of the clamping plate 91 close to the bending machine main body 1, one side of the upper end of the clamping plate 91, far away from the bending machine main body 1, vertically penetrates through and is in threaded connection with a second threaded support rod 93, the lower end of the second threaded support rod 93 is rotatably connected with a pressing block 95, a hand wheel 94 is fixedly connected to the upper end of the second threaded support rod 93, the baffle 92 can abut against a metal pipe, the clamping plate 91 can slide on the support plate 13, and the length.

Specifically, the support rod 8 includes a main rod 81, a lower end of the main rod 81 is fixedly connected to the movable shaft 7, two side outer walls of the main rod 81 are respectively provided with a limiting groove 83, an upper end of the main rod 81 is provided with a jack 82, an upper end circumference outer wall of the main rod 81 is sleeved and slidably connected with a sleeve 84, two side lower end inner walls of the sleeve 84 are respectively and fixedly connected with a limiting block 85, the limiting blocks 85 are respectively and slidably connected to the inner parts of the same side limiting grooves 83, an upper end inner wall of the sleeve 84 is fixedly connected with a slide rod 86, a lower end of the slide rod 86 is inserted into the jack 82 arranged on the main rod 81, a part of circumference outer wall of the slide rod 86 inside the sleeve 84 is sleeved with a compression spring 87, an upper end of the compression spring 87 is fixedly connected to the upper end inner wall of the sleeve 84, and, the outer wall of the circumference of the sleeve 84 is provided with a plurality of friction grooves 88, the outer wall of the upper end of the sleeve 84 is fixedly connected with a fixing head 89, the upper end of the fixing head 89 is in a semicircular structure and abuts against an included angle between the upper end of the support plate 17 and the lower end of the support plate 13, the fixing head 89 abuts against the included angle between the upper end of the support plate 17 and the lower end of the support plate 13 by utilizing the elasticity of the compression spring 87, the support plate 13 is conveniently supported, and the support plate 13 is prevented from rotating.

Specifically, retrieve mechanism 2 and include mounting panel 21, mounting panel 21 is dismantled through a plurality of construction bolts 22 and is connected on bender main part 1, mounting panel 21's positive fixed connection has spring plate 23, the inside fixedly connected with pivot 24 of spring plate 23, the first runner 25 of one end fixedly connected with of spring plate 23 is kept away from to pivot 24, utilizes spring plate 23 to rotate pivot 24, drives around the motion of rolling up mechanism 3 through pivot 24, after convenient work, rolling power cord 5.

Specifically, it includes winding disc 31 to wind mechanism 3, winding disc 31's back middle part fixedly connected with fixed axle 32, the one end that winding disc 31 was kept away from to fixed axle 32 is rotated and is connected on bender main part 1, winding disc 31's positive middle part fixedly connected with second runner 33, second runner 33 and winding disc 31 and fixed axle 32 are located same central line, second runner 33 passes through drive belt 34 and retrieves mechanism 2's first runner 25 transmission and connects, through winding disc 31 around rolling up too much power cord 5, prevents that power cord 5 from being cut bad by subaerial sharp-pointed thing when dragging.

Specifically, the middle part of the power cord 5 is wound on the winding disc 31 of the winding mechanism 3, one end of the power cord 5, which is provided with a plug, is clamped between the bottom plate 42 and the pressing plate 46 of the fixing mechanism 4, and the excessive part of the power cord 5 is fixed on the bending machine main body 1 through the winding mechanism 3 and the fixing mechanism 4, so that the power cord 5 is prevented from dragging on the ground when the bending machine moves.

Specifically, fixing mechanism 4 includes fixed plate 41, fixed plate 41 fixed connection is on bender main part 1, fixed plate 41's positive lower extreme fixedly connected with bottom plate 42, first spout 43 has been seted up to the positive middle part upper end of fixed plate 41, fixed plate 41's positive upper end fixedly connected with roof 44, the middle part of roof 44 runs through perpendicularly and threaded connection has first screw thread branch 45, the lower extreme of first screw thread branch 45 rotates and is connected with clamp plate 46, the first slider 47 of the back fixedly connected with of clamp plate 46, first slider 47 sliding connection is inside first spout 43, the upper end fixedly connected with carousel 48 of first screw thread branch 45 carries the one end of power cord 5 installation plug through clamp plate 46 and the cooperation of bottom plate 42, retrieves the drive of mechanism 2 when avoiding using and winds 3 power cords 5 of rolling mechanism.

When the bending machine is used, the bending machine is moved to a working place, the plug of the power line 5 is pulled, the power line 5 is pulled down from the winding disc 31, the winding disc 31 drives the second rotating wheel 33 to rotate, the second rotating wheel 33 drives the first rotating wheel 25 to rotate through the driving belt 34, the first rotating wheel 25 winds the hair curler disc 23 through the rotating shaft 24, when the plug of the power line 5 can be inserted into the socket, the power line 5 is partially clamped on the bottom plate 42, the first threaded support rod 45 is rotated through the rotating disc 48, the first threaded support rod 45 drives the pressing plate 46 to move downwards until the power line 5 clamped on the bottom plate 42 is pressed, then the plug of the power line 5 is inserted into the socket, the bending machine body 1 is powered on, the support plate 13 is rotated, the support plate 13 is pressed against the support block 10, the support plate 13 is parallel to the upper end of the bending machine body 1, then the support rod 8 is, the length of the support rod 8 is shortened, the sleeve 84 continuously extrudes the compression spring 87 in the sliding process, when the fixing head 89 on the sleeve 84 is aligned with the included angle between the support plate 17 and the support plate 13, the sleeve 84 can be loosened, the compression spring 87 enables the sleeve 84 to move upwards until the fixing head 89 is abutted against the included angle between the support plate 17 and the support plate 13 to support the support plate 13, then one end of the metal pipe passes through the bending part of the bending machine main body 1 and is clamped in the first placing groove 11 formed on the support block 10, then the bending machine main body 1 is started, the bending part of the bending machine main body 1 is utilized to bend the metal pipe, if a specific position on the metal pipe needs to be bent, one end of the metal pipe can pass through the bending part of the bending machine main body 1 and the first placing groove 11 on the support block 10, is clamped in the second placing groove 14 on the support plate 13 and is abutted against the baffle 92, the blocking plate 91 is pushed to slide on the carrier plate 13 by the blocking plate 92, and meanwhile, the staff can observe the scale mark 16 pointed by the blocking plate 91, the metal tube is measured and, when the distance between the baffle 92 and the bending part of the bending machine body 1 is determined, the second threaded support rod 93 is rotated by the hand wheel 94, the pressing block 95 is pressed against the inner part of the second placing groove 14, then the bending machine main body 1 is started, the metal pipe is bent by using the bending part of the bending machine main body 1, after the work is finished, the plug of the power cord 5 is pulled out from the socket and the rotating disc 48 is rotated reversely, the portion of the power cord 5 stuck on the bottom plate 42 is released, the spring plate 23 then rotates the first pulley 25 in the reverse direction by the rotating shaft 24, the first pulley 25 rotates the second pulley 33 in the reverse direction by the driving belt 34, and then the winding disc 31 is rotated reversely to wind the power cord 5 on the winding disc 31, and then the present invention is moved to a place where it is placed.

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

Claims

1. The utility model provides a metal pipe bender, includes bender main part (1), its characterized in that, fixed establishment (4) are installed to the positive one side of bender main part (1), the positive opposite side of bender main part (1) is installed and is retrieved mechanism (2) and around rolling up mechanism (3), retrieve mechanism (2) and be located the top of rolling up mechanism (3) and with around rolling up mechanism (3) transmission and be connected, positive opposite side fixedly connected with power cord (5) of bender main part (1), the middle part winding of power cord (5) is on rolling up mechanism (3), the one end card of power cord (5) installation plug is on fixed establishment (4), upper end one side fixedly connected with tray (10) of bender main part (1), first bender standing groove (11) have been seted up on tray (10) end, one side lower extreme that main part (1) upper end middle part was kept away from to tray (10) is articulated through hinge (12) has support plate (10) 13) A second placing groove (14) is formed in the upper end of the carrier plate (13), one side, close to the bending machine main body (1), of the second placing groove (14) is communicated with and aligned with a first placing groove (11) formed in the support block (10), the front part and the rear part of the carrier plate (13) are both provided with second sliding grooves (15), the outer wall of the carrier plate (13) below the second sliding grooves (15) is both provided with scale marks (16), a limiting mechanism (9) is arranged in the middle of the support plate (13), a support plate (17) is fixedly connected to one side of the lower end of the support plate (13) far away from the bending machine main body (1), the middle part of one side of the bending machine main body (1) is fixedly connected with a fixed seat (6), the inner part of the fixed seat (6) is rotationally connected with a supporting rod (8) through a movable shaft (7), the upper end of the supporting rod (8) is abutted to an included angle between the upper end of the supporting plate (17) and the lower end of the supporting plate (13).

2. The metal pipe bending machine according to claim 1, wherein: retrieve mechanism (2) and include mounting panel (21), mounting panel (21) are dismantled through a plurality of construction bolt (22) and are connected on bender main part (1), the front fixed connection of mounting panel (21) has spring plate (23), the inside fixedly connected with pivot (24) of spring plate (23), the first runner (25) of one end fixedly connected with of spring plate (23) are kept away from in pivot (24).

3. The metal pipe bending machine according to claim 1, wherein: wind winding mechanism (3) including winding dish (31), the back middle part fixedly connected with fixed axle (32) of winding dish (31), the one end rotation of keeping away from winding dish (31) in fixed axle (32) is connected on bender main part (1), the front middle part fixedly connected with second runner (33) of winding dish (31), second runner (33) and winding dish (31) and fixed axle (32) are located same central line, second runner (33) are connected through drive belt (34) and first runner (25) transmission of retrieving mechanism (2).

4. The metal pipe bending machine according to claim 1, wherein: fixing mechanism (4) are including fixed plate (41), fixed plate (41) fixed connection is on bender main part (1), positive lower extreme fixedly connected with bottom plate (42) of fixed plate (41), first spout (43) have been seted up to fixed plate (41) positive middle part upper end, the positive upper end fixedly connected with roof (44) of fixed plate (41), the middle part of roof (44) runs through perpendicularly and threaded connection has first screw thread branch (45), the lower extreme of first screw thread branch (45) rotates and is connected with clamp plate (46), the first slider (47) of the back fixedly connected with of clamp plate (46), first slider (47) sliding connection is inside first spout (43), the upper end fixedly connected with carousel (48) of first screw thread branch (45).

5. The metal pipe bending machine according to claim 1, wherein: stop gear (9) include cardboard (91), cardboard (91) are U-shaped structure and block at the front and back of support plate (13), equal fixedly connected with second slider (96) on the inner wall of cardboard (91) front and back lower extreme, the equal sliding connection of second slider (96) is in the inside of homonymy second spout (15), inside one side fixedly connected with baffle (92) that is close to bender main part (1) of cardboard (91), one side that bender main part (1) was kept away from to cardboard (91) upper end is run through perpendicularly and threaded connection has second threaded support rod (93), the lower extreme of second threaded support rod (93) rotates and is connected with briquetting (95), the upper end fixedly connected with hand wheel (94) of second threaded support rod (93).

6. The metal pipe bending machine according to claim 1, wherein: the support rod (8) comprises a main rod (81), the lower end of the main rod (81) is fixedly connected to the movable shaft (7), the outer walls of two sides of the main rod (81) are respectively provided with a limiting groove (83), the upper end of the main rod (81) is provided with a jack (82), the outer wall of the upper end circumference of the main rod (81) is sleeved with a sleeve (84) in a sliding manner, the inner wall of the upper end of the sleeve (84) is fixedly connected with a slide rod (86), the lower end of the slide rod (86) is inserted into the jack (82) arranged on the main rod (81), the outer wall of the part of the circumference of the slide rod (86) positioned inside the sleeve (84) is sleeved with a compression spring (87), the upper end of the compression spring (87) is fixedly connected to the inner wall of the upper end of the sleeve (84), the lower end of the compression spring (87) is fixedly connected to the upper end of the main rod (81), the outer wall of the upper end of the sleeve (84) is fixedly connected with a fixing head (89), the upper end of the fixing head (89) is of a semicircular structure and abuts against an included angle between the upper end of the support plate (17) and the lower end of the support plate (13).

7. The metal tube bending machine according to claim 6, wherein: the equal fixedly connected with stopper (85) on the both sides lower extreme inner wall of sleeve (84), equal sliding connection of stopper (85) is inside homonymy spacing groove (83).

8. The metal pipe bending machine according to claim 1, wherein: the middle part of the power cord (5) is wound on a winding disc (31) of the winding mechanism (3), and one end of the power cord (5) provided with a plug is clamped between a bottom plate (42) and a pressing plate (46) of the fixing mechanism (4).