CN107252835A - A kind of pipe bending device - Google Patents

A kind of pipe bending device Download PDF

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Publication number
CN107252835A
CN107252835A CN201710542085.XA CN201710542085A CN107252835A CN 107252835 A CN107252835 A CN 107252835A CN 201710542085 A CN201710542085 A CN 201710542085A CN 107252835 A CN107252835 A CN 107252835A
Authority
CN
China
Prior art keywords
rotation platform
stepper motor
bending
loop bar
output shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710542085.XA
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Chinese (zh)
Inventor
邓红
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201710542085.XA priority Critical patent/CN107252835A/en
Publication of CN107252835A publication Critical patent/CN107252835A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D7/00Bending rods, profiles, or tubes
    • B21D7/02Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
    • B21D7/021Construction of forming members having more than one groove
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/003Positioning devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D7/00Bending rods, profiles, or tubes
    • B21D7/16Auxiliary equipment, e.g. for heating or cooling of bends

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

The invention discloses a kind of pipe bending device, including cabinet, rotation platform, clamp bending component and set bar assembly, the upper surface of cabinet is provided with annular ball groove, the edge of cabinet upper surface is provided with loop bar connecting seat, cabinet inside is provided with stepper motor, external splines is provided with the middle of the output shaft of stepper motor, the output shaft connection of rotation platform and stepper motor, rotation platform lower end is connected with annular ball groove, bending component is clamped to be connected with rotation platform, set bar assembly is connected with loop bar connecting seat, rotation platform is provided with internal spline one, and rotation platform is connected by internal spline one with the external splines on the output shaft of stepper motor, rotation platform lower end is provided with multiple steel balls, and steel ball is connected with rotation platform by ball pair, clamping bending component includes hydraulic cylinder, clamping element and bending member, set bar assembly is made up of connecting rod and loop bar, according to field demand, realize the cold molding of straight pipe, shaping speed is fast, it is time saving and energy saving, bending angle is accurately and reliably, and safety coefficient is high.

Description

A kind of pipe bending device
Technical field
The invention belongs to pipe processing unit technical field, specifically, the present invention relates to a kind of pipe bending device.
Background technology
On building sites, steel pipe manufacture building structure rack is often used, building structure rack is being built with steel pipe In, need to use the steel pipe of bending in many places, and the bending angle is changeable, is made troubles to building, often makes Into schedule delays.
Steel pipe is also used in fluid delivery process in addition, the steel of bending will be used by running into the corner of transport fluid Pipe, and the bending angle is also changeable, the laying to liquid conveying pipe makes troubles.
In order to obtain the steel pipe of different bending angles, current way is to utilize traditional straight steel pipe in bending place Acetylene flame burning torch is heated, and is then bent, wasted time and energy using external force, bending angle accuracy rate is low, and security is low.
The Chinese patent application file of Application No. 201610897032.5, discloses a kind of building iron bar folder, bag Include hydraulic cylinder, bending head, support and pressure switch, the bending head be located in hydraulic cylinder front end, the bending head be provided with it is recessed Groove, the branch is erected at cylinder bottom portion, and the support is welded with hydraulic cylinder, and the pressure switch is located on hydraulic cylinder, described Concave setting in the middle part of bumping post and sleeve pipe, the bumping post is provided with support, described sleeve pipe bottom is provided with bolt, described sleeve pipe It is connected by bolt with support, the first in command, the second in command, hydralic pressure gauge and LED lamp bead is additionally provided with the hydraulic cylinder, it is described LED lamp bead is provided with more than one, and the building iron bar folder bending angle can not be controlled accurately, held, taken by human hand during operation When it is laborious.
The Chinese patent application file of Application No. 201620600453.2, discloses a kind of anglebender, including machine Frame, motor, a main wheel and two directive wheels, motor driving main wheel are rotated, and a support is installed in frame, and correspondence two is oriented to Wheel sets two groups of directive wheel apparatus for adjusting position on support, every group of directive wheel apparatus for adjusting position include an adjusting slider and One adjusting screw rod, the central shaft of two directive wheels is separately mounted on corresponding adjusting slider, and two adjusting sliders of correspondence are in support Two chutes are set, and adjusting slider is located in respective chute and can be along slide, side plate of two adjusting screw rods with support It is threadedly coupled and the end of the two is fixedly connected through above-mentioned side plate with adjusting slider, reinforcing bar is formed between two directive wheels and main wheel Reinforcing bar can only be bent into certain radian, and the limited angle of bending by warp rail, the program.
The content of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides a kind of pipe bending device, according to field demand, real The cold molding of straight pipe is showed, shaping speed is fast, time saving and energy saving, accurately and reliably, and safety coefficient is high for bending angle.
To achieve these goals, the technical scheme taken of the present invention is:A kind of pipe bending device, including cabinet, rotation Turn platform, clamp bending component and set bar assembly, the upper surface of the cabinet is provided with annular ball groove, the cabinet upper surface Edge is provided with loop bar connecting seat, and the cabinet inside is provided with the middle of stepper motor, the output shaft of the stepper motor and is provided with outer flower Key, the output shaft upper end of stepper motor is provided with external screw thread, and the output shaft of the rotation platform and stepper motor is connected, rotation platform Lower end is connected with annular ball groove, and the bending component that clamps is connected with rotation platform, and the set bar assembly connects with loop bar connecting seat Connect.
It is preferred that, the rotation platform is provided with internal spline one, and rotation platform passes through internal spline one and stepper motor External splines connection on output shaft.
It is preferred that, the rotation platform lower end is provided with multiple steel balls, and steel ball is connected with rotation platform by ball pair, described Steel ball can be rolled in annular ball groove.
It is preferred that, the bending component that clamps includes hydraulic cylinder, clamping element and bending member, the hydraulic cylinder and rotation platform It is fixedly connected, the piston rod end of the clamping element and hydraulic cylinder is connected by screw pair, the clamping element is provided with half slot One, the bending member centre is provided with internal spline two, and bending member passes through the outer flower on the output shaft of internal spline two and stepper motor Key is connected, and the bending member side is provided with half slot two.
It is preferred that, the half slot one and half slot two combine to form a cylindrical hole.
It is preferred that, the set bar assembly is made up of connecting rod and loop bar, and the connection boom end is fixed with loop bar connecting seat Connection, the loop bar is detachably connected with connecting rod by screw pair.
It is preferred that, the loop bar is made using potassium steel material.
It is preferred that, the half slot one that the clamping element is provided with can be selected to square-section groove, the bending member side The half slot two that face is provided with can be selected to square-section groove, while being square-section groove by loop bar section selection.
Beneficial effect using above technical scheme is:The pipe bending device, straight pipe is enclosed on loop bar, Ran Houqi Hydrodynamic pressure cylinder working, because the piston rod end of hydraulic cylinder is connected with clamping element by screw pair, and the clamping element is provided with It is provided with the middle of half slot one, the bending member on internal spline two, and output shaft of the bending member by internal spline two and stepper motor External splines connection, bending member side is provided with half slot two, and the half slot one and half slot two combine to form one Individual cylindrical hole, so straight pipe is clamped in the cylindrical hole that half slot one and half slot two are formed by hydraulic cylinder by clamping element, Then stepper motor is started, because the rotation platform is provided with internal spline one, and rotation platform passes through internal spline one and stepping External splines connection on the output shaft of motor, so stepper motor drives rotation platform and bending member to rotate, because described simultaneously Hydraulic cylinder is fixedly connected with rotation platform, so hydraulic cylinder and its clamping element that is connected with the piston rod of hydraulic cylinder are with rotary flat Platform is rotated together, clamping element and bending member move together straight pipe is bent it is angled, realize the cold moulding of straight pipe into Type, shaping speed is fast, time saving and energy saving, and safety coefficient is high.
Wherein according to field demand, the step angle of stepper motor is controlled, the bending operation of different angles can be realized, because Complete by step motor control for the bending angle of straight pipe, so bending angle is accurately and reliably, and error is small;The other step The output torque of stepper motor is adjustable, can carry out bending operation to the straight pipe of different-diameter and varying strength;Because the folder Tight part is connected by the piston rod of screw pair and hydraulic cylinder, and the loop bar is connected by screw pair with connecting rod, the bending member It is connected by internal spline two with the external splines on the output shaft of stepper motor, and locking on external screw thread is screwed in by nut, so Different clamping element, loop bar and bending members are changed according to the straight pipe of different-diameter, realizes and the straight pipe of different-diameter is carried out Bending operation, improves the versatility of device.
The loop bar is made using potassium steel material, because in bending operating process, mill of the straight round tube inner wall to loop bar Damage more severe, so using the high potassium steel material of wearability.
The half slot one that the clamping element is provided with can be selected to square-section groove, what the bending member side was provided with Half slot two can be selected to square-section groove, while being square-section groove by loop bar section selection, can realize to square tube Bending operation.
Brief description of the drawings
Fig. 1 is the pipe bending device overall structure diagram;
Fig. 2 is the pipe bending device front view;
Fig. 3 is cabinet and stepper motor mounting structure schematic diagram;
Fig. 4 is rotation platform polycrystalline substance schematic diagram;
Fig. 5 is bending member structural representation;
Wherein:
1st, cabinet;2nd, rotation platform;3rd, bending component is clamped;4th, bar assembly is covered;5th, straight pipe;10th, annular ball groove;11、 Loop bar connecting seat;12nd, stepper motor;13rd, external splines;14th, external screw thread;20th, internal spline one;21st, steel ball;30th, hydraulic cylinder;31、 Clamping element;31-1, half slot one;32nd, bending member;32-1, internal spline two;32-2, half slot two;40th, connecting rod;41st, loop bar.
Embodiment
Below against accompanying drawing, by the description to embodiment, the embodiment to the present invention makees further details of Explanation, it is therefore an objective to help those skilled in the art to have more complete, accurate and deep reason to design of the invention, technical scheme Solution, and contribute to it to implement.
As shown in Figures 1 to 5, the present invention is a kind of pipe bending device, according to field demand, realizes the cold of straight pipe It is moulded into type, shaping speed is fast, time saving and energy saving, accurately and reliably, and safety coefficient is high for bending angle.
Specifically, as shown in Figures 1 to 5, including cabinet 1, rotation platform 2, clamp bending component 3 and set bar assembly 4, As shown in Figure 1, Figure 3, the upper surface of the cabinet 1 is provided with annular ball groove, and the edge of the upper surface of cabinet 1 connects provided with loop bar Joint chair 11, as shown in Fig. 2 the inside of the cabinet 1 is provided with stepper motor 12, as shown in figure 3, the output shaft of the stepper motor 12 Centre is provided with external splines 13, and the output shaft upper end of stepper motor 12 is provided with external screw thread 14, as shown in Figure 1 and Figure 2, the rotary flat Platform 2 is connected with the output shaft of stepper motor 12, and the lower end of rotation platform 2 is connected with annular ball groove 10, it is described clamp bending component 3 with Rotation platform 2 is connected, and the set bar assembly 4 is connected with loop bar connecting seat 11.
As shown in figure 4, the rotation platform 2 is provided with internal spline 1, and rotation platform 2 passes through internal spline 1 and step External splines 13 on the output shaft of stepper motor 12 is connected.
As shown in figure 4, the lower end of rotation platform 2 is provided with multiple steel balls 21, and steel ball 21 passes through ball pair with rotation platform 2 Connection, the steel ball 21 can be rolled in annular ball groove 10.
As shown in Figure 1 and Figure 2, the bending component 3 that clamps includes hydraulic cylinder 30, clamping element 31 and bending member 32, the liquid Cylinder pressure 30 is fixedly connected with rotation platform 2, and the clamping element 31 is connected with the piston rod end of hydraulic cylinder 30 by screw pair, institute Clamping element 31 is stated provided with the 31-1 of half slot one, as shown in figure 5, the 32-1 of internal spline two is provided with the middle of the bending member 32, and it is curved Folding piece 32 is connected by the 32-1 of internal spline two with the external splines 13 on the output shaft of stepper motor 12, and the side of bending member 32 is set There is the 32-2 of half slot two.
As shown in Fig. 2 the 31-1 of half slot one and the 32-2 of half slot two combine to form a cylindrical hole.
As shown in figure 1, the set bar assembly 4 is made up of connecting rod 40 and loop bar 41, the end of connecting rod 40 and loop bar Connecting seat 11 is fixedly connected, and the loop bar 41 is detachably connected with connecting rod 40 by screw pair.
Specific works mode is illustrated with specific embodiment below:
Embodiment 1:
The pipe bending device, straight pipe 5 is enclosed on loop bar, is then started hydraulic cylinder 30 and is worked, because hydraulic cylinder 30 Piston rod end clamping element 31 is connected with by screw pair, and the clamping element 31 is provided with the 31-1 of half slot one, described curved It is provided with the middle of folding piece 32 on the 32-1 of internal spline two, and output shaft of the bending member 32 by the 32-1 of internal spline two and stepper motor 12 External splines 13 is connected, and the side of bending member 32 is provided with half slot two 32-2, the 31-1 of half slot one and half slot two 32-2 Combine to form a cylindrical hole, thus hydraulic cylinder 30 by clamping element 31 by straight pipe 5 be clamped in the 31-1 of half slot one and In the cylindrical hole of the 32-2 of half slot two formation, then start stepper motor 12, because the rotation platform 2 is provided with internal spline one 20, and rotation platform 2 is connected by internal spline 1 with the external splines 13 on the output shaft of stepper motor 12, so stepper motor 12 drive rotation platform 2 and bending member 32 to rotate simultaneously, because the hydraulic cylinder 30 is fixedly connected with rotation platform 2, liquid Cylinder pressure 30 and its with clamping element 31 that the piston rod of hydraulic cylinder 30 is connected with rotating together with rotation platform 2, clamping element 31 and curved Folding piece 32 is moved together to be bent straight pipe 5 angled, realizes the cold molding of straight pipe 5, shaping speed is fast, time saving It is laborsaving, and safety coefficient is high.
Embodiment 2:
Wherein according to field demand, the step angle of stepper motor 12 is controlled, the bending operation of different angles can be realized, Because the bending angle of straight pipe 5 is controlled by stepper motor 12 completely, accurately and reliably, and error is small for bending angle;In addition The output torque of the stepper motor 12 is adjustable, can carry out bending operation to the straight pipe 5 of different-diameter and varying strength;Cause It is connected for the clamping element 31 by screw pair with the piston rod of hydraulic cylinder 30, the loop bar 41 passes through screw pair and connecting rod 40 Connection, the bending member 32 is connected by the 32-1 of internal spline two with the external splines 13 on the output shaft of stepper motor 12, and is passed through Nut is screwed on external screw thread 14 and locked, so changing different clamping elements 31, loop bar 41 and curved according to the straight pipe 5 of different-diameter Folding piece 32, realizes and carries out bending operation to the straight pipe 5 of different-diameter, improve the versatility of device.
The loop bar 41 is made using potassium steel material, because in bending operating process, the straight inwall of pipe 5 is to loop bar 41 Abrasion it is more severe, so using the high potassium steel material of wearability.
Embodiment 3:
The 31-1 of half slot one that the clamping element 31 is provided with can be selected to square-section groove, the side of bending member 32 The 32-1 of half slot two that face is provided with can be selected to square-section groove, while be square-section groove by the section selection of loop bar 41, The bending operation to square tube can be realized.
The present invention is exemplarily described above in association with accompanying drawing, it is clear that the present invention is implemented not by above-mentioned side The limitation of formula, as long as employ the improvement of the various unsubstantialities of inventive concept and technical scheme of the present invention progress;Or not It is improved, the above-mentioned design of the present invention and technical scheme are directly applied into other occasions, in protection scope of the present invention Within.

Claims (8)

1. a kind of pipe bending device, it is characterised in that:Including cabinet (1), rotation platform (2), clamp bending component (3) and set Bar assembly (4), the upper surface of the cabinet (1) is provided with annular ball groove (10), and the edge of cabinet (1) upper surface is provided with set It is provided with the middle of stepper motor (12), the output shaft of the stepper motor (12) and is provided with inside bar connecting seat (11), the cabinet (1) External splines (13), the output shaft upper end of stepper motor (12) is provided with external screw thread (14), the rotation platform (2) and stepper motor (12) output shaft connection, rotation platform (2) lower end is connected with annular ball groove (10), described to clamp bending component (3) and rotation Platform (2) is connected, and the set bar assembly (4) is connected with loop bar connecting seat (11).
2. a kind of pipe bending device according to claim 1, it is characterised in that:The rotation platform (2) is provided with interior Spline one (20), and rotation platform (2) passes through internal spline one (20) and the external splines (13) on the output shaft of stepper motor (12) Connection.
3. a kind of pipe bending device according to claim 1, it is characterised in that:Rotation platform (2) lower end is provided with Multiple steel balls (21), and steel ball (21) and rotation platform (2) be connected by ball pair, the steel ball (21) can be in annular ball groove (10) It is middle to roll.
4. a kind of pipe bending device according to claim 1, it is characterised in that:The bending component (3) that clamps includes Hydraulic cylinder (30), clamping element (31) and bending member (32), the hydraulic cylinder (30) are fixedly connected with rotation platform (2), the folder Tight part (31) is connected with the piston rod end of hydraulic cylinder (30) by screw pair, and the clamping element (31) is provided with half slot one Be provided with internal spline two (32-1) in the middle of (31-1), the bending member (32), and bending member (32) by internal spline two (32-1) with External splines (13) connection on the output shaft of stepper motor (12), the bending member (32) is provided with half slot two (32-2) sideways.
5. a kind of pipe bending device according to claim 4, it is characterised in that:The half slot one (31-1) and semicircle Groove two (32-2) combines to form a cylindrical hole.
6. a kind of pipe bending device according to claim 1, it is characterised in that:The set bar assembly (4) is by connecting rod (40) constituted with loop bar (41), connecting rod (40) end is fixedly connected with loop bar connecting seat (11), the loop bar (41) and Connecting rod (40) is detachably connected by screw pair.
7. a kind of pipe bending device according to claim 6, it is characterised in that:The loop bar (41) uses high-manganese steel Matter makes.
8. a kind of pipe bending device according to claim 4, it is characterised in that:The clamping element (31) be provided with half Circular groove one (31-1) can be selected to square-section groove, and the half slot two (32-2) that the bending member (32) is provided with sideways can be with Square-section groove is selected to, while being square-section groove by loop bar (41) section selection.
CN201710542085.XA 2017-07-05 2017-07-05 A kind of pipe bending device Pending CN107252835A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710542085.XA CN107252835A (en) 2017-07-05 2017-07-05 A kind of pipe bending device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710542085.XA CN107252835A (en) 2017-07-05 2017-07-05 A kind of pipe bending device

Publications (1)

Publication Number Publication Date
CN107252835A true CN107252835A (en) 2017-10-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710542085.XA Pending CN107252835A (en) 2017-07-05 2017-07-05 A kind of pipe bending device

Country Status (1)

Country Link
CN (1) CN107252835A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107695262A (en) * 2017-10-19 2018-02-16 台山市万力达金属制品科技有限公司 Clothes hanger connecting rod material bending device
CN110560532A (en) * 2019-08-01 2019-12-13 浙江正豪钢结构工程有限公司 Bending device for steel structure machining
CN110893428A (en) * 2019-11-27 2020-03-20 马琴英 Protection type aluminum product part processing in building field is with equipment of buckling
CN113118265A (en) * 2021-04-22 2021-07-16 王晨 Manufacturing and processing machine and processing method for condenser tube
CN113275480A (en) * 2021-05-18 2021-08-20 宝业湖北建工集团有限公司 Sleeve for bending reinforcing steel bar
CN113458210A (en) * 2021-07-30 2021-10-01 浙江金马逊机械有限公司 Pipe bending equipment and pipe bending assembly thereof
CN113458212A (en) * 2021-07-30 2021-10-01 浙江金马逊机械有限公司 Manual pipe bending equipment and pipe bending method thereof

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204504066U (en) * 2015-03-31 2015-07-29 杨树成 A kind ofly protect motor and the angle-bender of adjustable angle of bend
JP5885323B1 (en) * 2014-12-26 2016-03-15 株式会社三五 Pipe bending die unit and pipe bending apparatus provided with the unit
CN205629213U (en) * 2016-05-20 2016-10-12 湖州福昌机械有限公司 Steel bar bending device
JP2017047433A (en) * 2015-08-31 2017-03-09 株式会社デンソーエアシステムズ Processing unit and processing device
CN206104617U (en) * 2016-08-23 2017-04-19 浙江景祥空调设备有限公司 Copper pipe bender
CN206139684U (en) * 2016-08-30 2017-05-03 佛山市南海九洲普惠风机有限公司 Bending machine of convertible crooked parameter
CN206263037U (en) * 2016-10-14 2017-06-20 长春工业大学 A kind of semi-automatic pipe bending equipment

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5885323B1 (en) * 2014-12-26 2016-03-15 株式会社三五 Pipe bending die unit and pipe bending apparatus provided with the unit
CN204504066U (en) * 2015-03-31 2015-07-29 杨树成 A kind ofly protect motor and the angle-bender of adjustable angle of bend
JP2017047433A (en) * 2015-08-31 2017-03-09 株式会社デンソーエアシステムズ Processing unit and processing device
CN205629213U (en) * 2016-05-20 2016-10-12 湖州福昌机械有限公司 Steel bar bending device
CN206104617U (en) * 2016-08-23 2017-04-19 浙江景祥空调设备有限公司 Copper pipe bender
CN206139684U (en) * 2016-08-30 2017-05-03 佛山市南海九洲普惠风机有限公司 Bending machine of convertible crooked parameter
CN206263037U (en) * 2016-10-14 2017-06-20 长春工业大学 A kind of semi-automatic pipe bending equipment

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107695262A (en) * 2017-10-19 2018-02-16 台山市万力达金属制品科技有限公司 Clothes hanger connecting rod material bending device
CN110560532A (en) * 2019-08-01 2019-12-13 浙江正豪钢结构工程有限公司 Bending device for steel structure machining
CN110893428A (en) * 2019-11-27 2020-03-20 马琴英 Protection type aluminum product part processing in building field is with equipment of buckling
CN113118265A (en) * 2021-04-22 2021-07-16 王晨 Manufacturing and processing machine and processing method for condenser tube
CN113275480A (en) * 2021-05-18 2021-08-20 宝业湖北建工集团有限公司 Sleeve for bending reinforcing steel bar
CN113458210A (en) * 2021-07-30 2021-10-01 浙江金马逊机械有限公司 Pipe bending equipment and pipe bending assembly thereof
CN113458212A (en) * 2021-07-30 2021-10-01 浙江金马逊机械有限公司 Manual pipe bending equipment and pipe bending method thereof

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Application publication date: 20171017

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