CN213103929U

CN213103929U - Bending machine is used in production of tower section of thick bamboo handrail pipe fitting

Info

Publication number: CN213103929U
Application number: CN202021317155.5U
Authority: CN
Inventors: 东雪琛; 宋欣航
Original assignee: Tianjin Dongjing Yuankun Ship Engineering Co ltd
Current assignee: Tianjin Dongjing Yuankun Ship Engineering Co ltd
Priority date: 2020-07-07
Filing date: 2020-07-07
Publication date: 2021-05-04
Anticipated expiration: 2030-07-07

Abstract

The utility model provides a bending machine is used in production of tower section of thick bamboo handrail pipe fitting belongs to bending machine technical field. This bending machine is used in production of tower section of thick bamboo handrail pipe fitting includes pushing mechanism and return bend mechanism, pushing mechanism includes supporting component, drive assembly, locating component, compresses tightly subassembly, slip subassembly, first extension board and pipe fitting body, the supporting component includes the support, drive assembly includes first motor and threaded rod. The utility model discloses a pipe fitting body, first recess, the briquetting, the round roller, first motor, the threaded rod, slide and first bracing piece, the clamp plate, first pneumatic cylinder, a spring, it is dull and stereotyped, the second pneumatic cylinder, the second motor, the bull stick and the effect of the pole of buckling to reached the efficient purpose of return bend, it is inefficient to have improved current bending machine return bend, the bending machine can only process a pipe fitting at every turn, and be not convenient for compress tightly fixedly, waste time and energy, be unfavorable for the problem that the mill improves production efficiency.

Description

Bending machine is used in production of tower section of thick bamboo handrail pipe fitting

Technical Field

The utility model relates to a bending machine field particularly, relates to a bending machine is used in production of tower section of thick bamboo handrail pipe fitting.

Background

The process of tower section of thick bamboo handrail pipe fitting processing utilizes the bending machine to bend the pipe fitting, obtains required tower section of thick bamboo handrail pipe fitting, and current bending machine return bend inefficiency, and the pipe fitting can only be processed to the bending machine at every turn to it is fixed to be not convenient for compress tightly, wastes time and energy, is unfavorable for mill's improvement production efficiency.

SUMMERY OF THE UTILITY MODEL

In order to compensate the above deficiency, the utility model provides a bending machine is used in production of tower section of thick bamboo handrail pipe fitting aims at improving the problem of return bend inefficiency.

The utility model discloses a realize like this:

the utility model provides a bending machine is used in production of tower section of thick bamboo handrail pipe fitting, including pushing mechanism and return bend mechanism.

The pushing mechanism comprises a supporting component, a driving component, a positioning component, a pressing component, a sliding component, a first support plate and a pipe fitting body, the supporting component comprises a support, the driving component comprises a first motor and a threaded rod, the positioning component comprises a flat plate, the pressing component comprises a first supporting rod, a first supporting plate, a first hydraulic cylinder, a spring and a pressing plate, the sliding component comprises a sliding plate and a sliding block, the first support plate is connected to one side of the support, the first motor is installed on one side of the first support plate, the threaded rod is connected to an output shaft of the first motor, the threaded rod penetrates through the first support plate in a sliding manner, threads of the threaded rod penetrate through the sliding plate, the sliding block is installed on one side of the sliding plate, the sliding block is connected to the support in a sliding manner, and the first supporting rod is connected to one, the first supporting rods are arranged to be symmetrically distributed, the flat plate is arranged at one end of the first supporting plate, the first supporting rods penetrate through the flat plate in a sliding mode, a first groove is formed in the flat plate, two first grooves are formed in the flat plate, two ends of the first supporting plate are connected to the first supporting rods, the first hydraulic cylinder is arranged on one side of the first supporting plate, the first hydraulic cylinder is arranged to be symmetrically distributed, the spring is connected to an output shaft of the first hydraulic cylinder, the pressing plate is arranged at the other end of the spring, the pressing plate corresponds to the first grooves in a one-to-one mode, the pipe fitting body is arranged on one side of the flat plate, the pipe bending mechanism comprises a second supporting rod and a bending component, the bending component comprises a second motor, a rotating rod, a round roller and a bending rod, the second supporting rod is connected to one side of the support, and the second motor is, the bull stick connect in the output shaft of second motor, the bull stick rotate run through in the second bracing piece, the bull stick is fixed run through in the circle roller, the circle roller sets up to two, buckle the pole connect in circle roller one side, the third recess has been seted up to buckle pole one side, the second recess has been seted up to circle roller week side, the second recess with the third recess one-to-one.

The utility model discloses a bending machine embodiment is used in production of tower section of thick bamboo handrail pipe fitting, support one side fixedly connected with third bracing piece, the bull stick rotate connect in third bracing piece one side, support one side fixedly connected with second extension board, second extension board one end with dull and stereotyped one side is connected.

The utility model discloses a bending machine embodiment is used in production of tower section of thick bamboo handrail pipe fitting, return bend mechanism still includes spacing subassembly, spacing subassembly includes second backup pad, second hydraulic cylinder and briquetting, the second backup pad connect in second bracing piece one side, the second hydraulic cylinder install in second backup pad one side, the briquetting connect in the output shaft of second hydraulic cylinder, the second hydraulic cylinder sets up to two symmetric distributions.

The utility model discloses a bending machine embodiment is used in production of tower section of thick bamboo handrail pipe fitting, the fourth recess has been seted up to briquetting one side, the fourth recess with second recess one-to-one.

The utility model discloses a bending machine embodiment is used in production of tower section of thick bamboo handrail pipe fitting, the pipe fitting body can in the second recess with remove in the fourth recess.

The utility model discloses a bending machine embodiment is used in production of tower section of thick bamboo handrail pipe fitting, the slide internal surface sets up threaded hole, the screw hole with threaded rod threaded connection.

The utility model discloses a bending machine embodiment is used in production of tower section of thick bamboo handrail pipe fitting, the spout has been seted up to support one side, the slider with spout clearance fit.

The utility model discloses a bending machine embodiment is used in production of tower section of thick bamboo handrail pipe fitting, the rectangular hole has been seted up to the flat board, the rectangular hole sets up to two, first bracing piece slide run through in the rectangular hole.

The utility model discloses a bending machine embodiment is used in production of tower section of thick bamboo handrail pipe fitting, first through-hole has been seted up to first backup pad internal surface, the threaded rod slide run through in first through-hole.

The utility model discloses a bending machine embodiment is used in production of tower section of thick bamboo handrail pipe fitting, the second through-hole has been seted up to second bracing piece internal surface, the bull stick with second through-hole clearance fit.

The utility model has the advantages that: the utility model discloses a bending machine is used in production of tower section of thick bamboo handrail pipe fitting that obtains through above-mentioned design, when using, the workman puts the pipe fitting body into first recess, and promote the bending department of pipe fitting body between briquetting and round roller, then turn on first motor, first motor can drive the threaded rod and rotate, the threaded rod can drive the slide through the screw hole and move left and right, the slide can drive first bracing piece and move left and right, first bracing piece can drive first bracing piece and move left and right, when the clamp plate moves directly over the department that compresses tightly, control first pneumatic cylinder downwardly extending, first pneumatic cylinder can drive the clamp plate through the spring and move down, the clamp plate cooperates with the flat board and fixes the pipe fitting body, through controlling the second pneumatic cylinder to stretch out and draw back, the second pneumatic cylinder can drive the briquetting and can form different distances with the round roller, thereby applicable in the bending of different specification pipe fittings, then open the second motor, the second motor can drive the bull stick and rotate, the bull stick can drive the round roller and rotate, the round roller can drive the pole of buckling and rotate, the pole of buckling can drive the one end of pipe fitting body and buckle around the round roller, can process the duplex position simultaneously, thereby reached the efficient purpose of return bend, it is inefficient to have improved current bending machine return bend, the bending machine can only process a pipe fitting at every turn, and be not convenient for compress tightly fixedly, waste time and energy, be unfavorable for the mill to improve production efficiency's problem.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a pipe bending machine for producing a handrail pipe of a tower provided by an embodiment of the present invention;

fig. 2 is a schematic view of a first viewing angle structure of a pushing mechanism according to an embodiment of the present invention;

fig. 3 is a schematic view of a second view angle structure of the pushing mechanism according to the embodiment of the present invention;

fig. 4 is a schematic structural diagram of a pressing assembly according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a sliding assembly according to an embodiment of the present invention;

fig. 6 is a schematic view of a first view angle structure of a pipe bending mechanism according to an embodiment of the present invention;

fig. 7 is a schematic structural view of a second viewing angle of the pipe bending mechanism according to the embodiment of the present invention;

fig. 8 is a schematic structural view of a bending assembly according to an embodiment of the present invention;

fig. 9 is a schematic structural view of a limiting assembly according to an embodiment of the present invention.

In the figure: 10-a pushing mechanism; 110-a support assembly; 111-a support; 112-a chute; 120-a drive assembly; 121-a first motor; 122-a threaded rod; 130-a positioning assembly; 131-plate; 132-a rectangular aperture; 133-a first groove; 140-a hold down assembly; 141-a first support bar; 142-a first support plate; 143-a first hydraulic cylinder; 144-a spring; 145-a platen; 150-a sliding assembly; 151-a slide plate; 152-a threaded hole; 153-a slide block; 160-a first plate; 170 — a first via; 180-a tube body; 190-a second plate; 20-a pipe bending mechanism; 210-a second support bar; 220-a bending component; 221-a second motor; 222-a rotating rod; 223-round rollers; 224-a second groove; 225-bending rod; 226-third groove; 230-a stop assembly; 231-a second support plate; 232-second hydraulic cylinder; 233-briquetting; 234-a fourth groove; 240-third support bar; 250-second via.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

Referring to fig. 1, the present invention provides a tube bending machine for producing a tower tube handrail, which includes a pushing mechanism 10 and a tube bending mechanism 20.

The pipe bending mechanism 20 is fixedly mounted on the pushing mechanism 10, the pushing mechanism 10 is used for clamping the pipe fitting body 180, and the pipe bending mechanism 20 is used for bending the pipe fitting body 180.

Referring to fig. 1, 2, 3, 4, and 5, the pushing mechanism 10 includes a supporting member 110, a driving member 120, a positioning member 130, a pressing member 140, a sliding member 150, a first supporting plate 160, and a pipe body 180, the supporting member 110 includes a supporting base 111, the driving member 120 includes a first motor 121 and a threaded rod 122, the positioning member 130 includes a flat plate 131, the pressing member 140 includes a first supporting rod 141, a first supporting plate 142, a first hydraulic cylinder 143, a spring 144, and a pressing plate 145, the sliding member 150 includes a sliding plate 151 and a sliding block 153, the first supporting plate 160 is connected to one side of the supporting base 111, specifically, the first supporting plate 160 is fixedly connected to one side of the supporting base 111 by welding, the first motor 121 is mounted to one side of the first supporting plate 160, specifically, the first motor 121 is fixedly mounted to one side of the first supporting plate 160 by screws, the threaded rod 122 is connected to an output shaft of the first motor 121, specifically, the threaded rod 122, the threaded rod 122 penetrates through the first support plate 160 in a sliding manner, the threaded rod 122 penetrates through the sliding plate 151 in a threaded manner, the slider 153 is mounted on one side of the sliding plate 151 by welding, the slider 153 is fixedly mounted on one side of the sliding plate 151 by welding, the slider 153 is slidably connected to the support 111, the first support rod 141 is connected to one side of the sliding plate 151 by welding, specifically, the first support rod 141 is fixedly connected to one side of the sliding plate 151 by welding, the first support rods 141 are symmetrically distributed, the plate 131 is mounted at one end of the first support plate 160 by welding, specifically, the plate 131 is fixedly mounted at one end of the first support plate 160 by welding, the first support rod 141 penetrates through the plate 131 by sliding, the plate 131 is provided with two first grooves 133, two ends of the first support plate 142 are connected to the first support rods 141, specifically, two ends of the first support plate 142 are fixedly connected to the first support rods 141 by, specifically, the first hydraulic cylinder 143 is fixedly mounted on one side of the first support plate 142 by screws, the first hydraulic cylinder 143 is arranged to be symmetrically distributed, the spring 144 is connected to an output shaft of the first hydraulic cylinder 143, specifically, the spring 144 is fixedly connected to the output shaft of the first hydraulic cylinder 143 by welding, the pressing plate 145 is mounted on the other end of the spring 144, specifically, the pressing plate 145 is fixedly mounted on the other end of the spring 144 by welding, the pressing plate 145 corresponds to the first groove 133 one to one, the pipe fitting body 180 is arranged on one side of the flat plate 131, the pressing plate 145 can be driven to move left and right by the aid of the first motor 121, the threaded rod 122, the sliding plate 151, the first support rod 141 and the first support plate 142, the pipe fitting body 180 can be pressed and fixed by cooperation with the first hydraulic cylinder 143, the spring 144 and the pressing plate.

In some specific embodiments, a threaded hole 152 is formed in an inner surface of the sliding plate 151, the threaded hole 152 is in threaded connection with the threaded rod 122, a sliding slot 112 is formed in one side of the support 111, the sliding block 153 is in clearance fit with the sliding slot 112, a rectangular hole 132 is formed in the flat plate 131, two rectangular holes 132 are formed, the first supporting rod 141 slidably penetrates through the rectangular hole 132, a first through hole 170 is formed in an inner surface of the first supporting plate 160, and the threaded rod 122 slidably penetrates through the first through hole 170.

Referring to fig. 1, 2, 6, 7, 8, and 9, the pipe bending mechanism 20 includes a second support rod 210 and a bending assembly 220, the bending assembly 220 includes a second motor 221, a rotating rod 222, a circular roller 223, and two bending rods 225, the second support rod 210 is connected to one side of the support 111, specifically, the second support rod 210 is fixedly connected to one side of the support 111 by welding, the second motor 221 is installed to one side of the second support rod 210, specifically, the second motor 221 is fixedly installed to one side of the second support rod 210 by screws, the rotating rod 222 is connected to an output shaft of the second motor 221, specifically, the rotating rod 222 is fixedly connected to an output shaft of the second motor 221 by welding, the rotating rod 222 rotatably penetrates through the second support rod 210, the rotating rod 222 is fixedly penetrated through the circular roller 223, the two circular rollers 223 are provided, the bending rods 225 are connected to one side of the circular roller 223, specifically, the bending rods 225 are fixedly connected to one side of the, a third groove 226 is formed on one side of the bending rod 225, a second groove 224 is formed on the periphery of the round roller 223, the second grooves 224 and the third grooves 226 correspond to each other one by one, and the pipe fitting body 180 can be bent under the action of the second motor 221, the rotating rod 222, the round roller 223 and the bending rod 225.

In some specific embodiments, the third support bar 240 is fixedly connected to one side of the support 111, specifically, the third support bar 240 is fixedly connected to one side of the support 111 by welding, the rotating rod 222 is rotatably connected to one side of the third support bar 240, specifically, the rotating rod 222 is rotatably connected to one side of the third support bar 240 by a bearing, the second support plate 190 is fixedly connected to one side of the support 111, specifically, the second support plate 190 is fixedly connected to one side of the plate 131 by welding, specifically, one end of the second support plate 190 is fixedly connected to one side of the plate 131 by welding, the pipe bending mechanism 20 further includes a limiting assembly 230, the limiting assembly 230 includes a second support plate 231, a second hydraulic cylinder 232 and a pressing block 233, the second support plate 231 is connected to one side of the second support bar 210, specifically, the second support plate 231 is fixedly connected to one side of the second support bar 210 by welding, second pneumatic cylinder 232 installs in second backup pad 231 one side, it is concrete, second pneumatic cylinder 232 passes through screw fixed mounting in second backup pad 231 one side, briquetting 233 connects in the output shaft of second pneumatic cylinder 232, it is concrete, briquetting 233 passes through welded fastening and connects in the output shaft of second pneumatic cylinder 232, second pneumatic cylinder 232 sets up to two symmetric distributions, fourth recess 234 has been seted up to briquetting 233 one side, fourth recess 234 and second recess 224 one-to-one, pipe fitting body 180 can remove in second recess 224 and fourth recess 234, second through hole 250 has been seted up to second bracing piece 210 internal surface, bull stick 222 and second through hole 250 clearance fit, through second backup pad 231, the effect of second pneumatic cylinder 232 and briquetting 233, can carry out spacingly to pipe fitting body 180, applicable bending in different specification pipe fittings.

The working principle of the pipe bender for producing the tower cylinder handrail pipe fitting is as follows: when the pipe fitting bending machine is used, a worker puts a pipe fitting body 180 into the first groove 133, pushes the bent part of the pipe fitting body 180 between the pressing block 233 and the round roller 223, then opens the first motor 121, the first motor 121 drives the threaded rod 122 to rotate, the threaded rod 122 drives the sliding plate 151 to move left and right through the threaded hole 152, the sliding plate 151 drives the first supporting rod 141 to move left and right, the first supporting rod 141 drives the first supporting plate 142 to move left and right, when the pressing plate 145 moves right above the pressed part, the first hydraulic cylinder 143 is controlled to extend downwards, the first hydraulic cylinder 143 drives the pressing plate 145 to move downwards through the spring 144, the pressing plate 145 is matched with the flat plate 131 to fix the pipe fitting body 180, the second hydraulic cylinder 232 is controlled to extend and retract, the second hydraulic cylinder 232 drives the pressing block 233 to move up and down, the pressing block 233 and the round roller 223 form different distances, so that the pipe fitting bending machine is, then open second motor 221, second motor 221 can drive bull stick 222 and rotate, bull stick 222 can drive round roller 223 and rotate, round roller 223 can drive the pole 225 of buckling and rotate, the pole 225 of buckling can drive the one end of pipe fitting body 180 and buckle around round roller 223, can process the duplex position simultaneously, thereby the efficient purpose of return bend has been reached, the current pipe bending machine return bend inefficiency has been improved, the pipe fitting can only be processed at every turn to the pipe bending machine, and be not convenient for compress tightly fixedly, waste time and energy, be unfavorable for the mill to improve production efficiency's problem.

It should be noted that the specific model specifications of the first motor 121, the first hydraulic cylinder 143, the second motor 221, and the second hydraulic cylinder 232 need to be determined by type selection according to the actual specification of the device, and the specific type selection calculation method adopts the prior art in the field, so detailed description is omitted.

The power supply of the first motor 121, the first hydraulic cylinder 143, the second motor 221 and the second hydraulic cylinder 232 and the principle thereof will be apparent to those skilled in the art and will not be described in detail herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A pipe bending machine is used in production of tower section of thick bamboo handrail pipe fitting, which is characterized in that includes

The pushing mechanism (10), the pushing mechanism (10) comprises a supporting component (110), a driving component (120), a positioning component (130), a pressing component (140), a sliding component (150), a first supporting plate (160) and a pipe body (180), the supporting component (110) comprises a support (111), the driving component (120) comprises a first motor (121) and a threaded rod (122), the positioning component (130) comprises a flat plate (131), the pressing component (140) comprises a first supporting rod (141), a first supporting plate (142), a first hydraulic cylinder (143), a spring (144) and a pressing plate (145), the sliding component (150) comprises a sliding plate (151) and a sliding block (153), the first supporting plate (160) is connected to one side of the support (111), the first motor (121) is installed to one side of the first supporting plate (160), and the threaded rod (122) is connected to an output shaft of the first motor (121), the threaded rod (122) penetrates through the first support plate (160) in a sliding manner, the threaded rod (122) penetrates through the sliding plate (151) in a threaded manner, the sliding block (153) is mounted on one side of the sliding plate (151), the sliding block (153) is connected to the support (111) in a sliding manner, the first support rod (141) is connected to one side of the sliding plate (151), the first support rods (141) are arranged in two symmetrical distribution, the flat plate (131) is mounted at one end of the first support plate (160), the first support rod (141) penetrates through the flat plate (131) in a sliding manner, the flat plate (131) is provided with a first groove (133), the first grooves (133) are arranged in two, two ends of the first support plate (142) are connected to the first support rods (141), and the first hydraulic cylinder (143) is mounted on one side of the first support plate (142), the first hydraulic cylinders (143) are symmetrically distributed, the springs (144) are connected to output shafts of the first hydraulic cylinders (143), the pressing plates (145) are mounted at the other ends of the springs (144), the pressing plates (145) correspond to the first grooves (133) one by one, and the pipe fitting body (180) is arranged on one side of the flat plate (131);

elbow mechanism (20), elbow mechanism (20) includes second bracing piece (210) and bending component (220), bending component (220) includes second motor (221), bull stick (222), circle roller (223) and bending rod (225), second bracing piece (210) connect in support (111) one side, second motor (221) install in second bracing piece (210) one side, bull stick (222) connect in the output shaft of second motor (221), bull stick (222) rotate run through in second bracing piece (210), bull stick (222) are fixed run through in circle roller (223), circle roller (223) set up to two, bending rod (225) connect in circle roller (223) one side, third recess (226) have been seted up to bending rod (225) one side, second recess (224) have been seted up to circle roller (223), the second grooves (224) correspond to the third grooves (226) one by one.

2. The bending machine for producing the handrail tube of the tower as claimed in claim 1, wherein a third support bar (240) is fixedly connected to one side of the support (111), the rotating bar (222) is rotatably connected to one side of the third support bar (240), a second support plate (190) is fixedly connected to one side of the support (111), and one end of the second support plate (190) is connected to one side of the flat plate (131).

3. The bending machine for the tower handrail tube member of claim 1, wherein the bending mechanism (20) further comprises a limiting component (230), the limiting component (230) comprises a second supporting plate (231), a second hydraulic cylinder (232) and pressing blocks (233), the second supporting plate (231) is connected to one side of the second supporting rod (210), the second hydraulic cylinder (232) is installed to one side of the second supporting plate (231), the pressing blocks (233) are connected to an output shaft of the second hydraulic cylinder (232), and the second hydraulic cylinders (232) are arranged in two symmetrical distribution.

4. The pipe bending machine for producing the tower handrail pipe as claimed in claim 3, wherein a fourth groove (234) is formed on one side of the pressing block (233), and the fourth groove (234) corresponds to the second groove (224) in a one-to-one manner.

5. The bending machine for manufacturing tower handrail tube according to claim 4, wherein the tube body (180) is movable in the second groove (224) and the fourth groove (234).

6. The bending machine for producing the handrail tube of the tower drum as claimed in claim 1, wherein a threaded hole (152) is formed in an inner surface of the sliding plate (151), and the threaded hole (152) is in threaded connection with the threaded rod (122).

7. The pipe bending machine for producing the tower handrail pipe fitting as claimed in claim 1, wherein a sliding slot (112) is formed on one side of the support (111), and the sliding block (153) is in clearance fit with the sliding slot (112).

8. The bending machine for producing the tower handrail pipe fitting as claimed in claim 1, wherein the flat plate (131) is provided with two rectangular holes (132), and the first support rods (141) slidably penetrate through the rectangular holes (132).

9. The bending machine for producing the handrail tube of the tower as claimed in claim 1, wherein the first support plate (160) has a first through hole (170) formed in an inner surface thereof, and the threaded rod (122) is slidably inserted through the first through hole (170).

10. The bending machine for producing the tower handrail tube as claimed in claim 1, wherein a second through hole (250) is formed in an inner surface of the second support rod (210), and the rotation rod (222) is in clearance fit with the second through hole (250).