CN107127504A - Suitable for the automatic assembling machine of H profile steel - Google Patents

Suitable for the automatic assembling machine of H profile steel Download PDF

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Publication number
CN107127504A
CN107127504A CN201710410541.5A CN201710410541A CN107127504A CN 107127504 A CN107127504 A CN 107127504A CN 201710410541 A CN201710410541 A CN 201710410541A CN 107127504 A CN107127504 A CN 107127504A
Authority
CN
China
Prior art keywords
underframe
support
profile steel
linear slider
plate
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
CN201710410541.5A
Other languages
Chinese (zh)
Inventor
万红杰
武义佳
王利刚
郭广才
周静
韩佳辰
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.)
HENAN HONGYU INDUSTRY EQUIPMENT ENGINEERING Co Ltd
Original Assignee
HENAN HONGYU INDUSTRY EQUIPMENT ENGINEERING Co Ltd
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 HENAN HONGYU INDUSTRY EQUIPMENT ENGINEERING Co Ltd filed Critical HENAN HONGYU INDUSTRY EQUIPMENT ENGINEERING Co Ltd
Priority to CN201710410541.5A priority Critical patent/CN107127504A/en
Publication of CN107127504A publication Critical patent/CN107127504A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/0426Fixtures for other work

Abstract

The present invention relates to the automatic assembling machine suitable for H profile steel, it includes underframe, lift, line slideway, linear slider, H profile steel support, elongated track, track support, wing plate fixed plate, bearing, side cylinder;The underframe includes two underframe;The lift is arranged between two underframe by support frame, and H profile steel support level coordinates between two underframe of installation, and is connected with lift;The line slideway includes vertical lines guide rail and horizontal line slideway.Automatic assembling machine of the present invention, it is adaptable to which symmetrical, asymmetric, partial center, variable section H-type steel assembling solder joint, operating efficiency are high, simple for structure.

Description

Suitable for the automatic assembling machine of H profile steel
Technical field
The present invention relates to machinery equipment field, more particularly to suitable for the automatic assembling machine of H profile steel.
Background technology
The vertical machine of group is one of equipment of steel construction production, is responsible for the vertical steel structure of group, is easy to welding, increases the modern times of operating efficiency Change equipment.Existing group of vertical machine is complicated, and adaptability is not strong, it is impossible to suitable for symmetrical, asymmetric, partial center, variable cross-section Solder joint is assembled etc. H profile steel, welding efficiency is low.
The content of the invention
To solve problems of the prior art, the present invention proposes the automatic assembling machine suitable for H profile steel, can be applicable In symmetrical, asymmetric, partial center, variable section H-type steel assembling solder joint, operating efficiency is high, simple for structure.
To achieve the above object, the present invention proposes the automatic assembling machine suitable for H profile steel, and it includes underframe, lift, directly Line guide rail, linear slider, H profile steel support, elongated track, track support, wing plate fixed plate, bearing, side cylinder;The underframe bag Include two underframe;The lift is arranged between two underframe by support frame, and H profile steel support level, which coordinates, installs two bottoms Between frame, and it is connected with lift;The line slideway includes vertical lines guide rail and horizontal line slideway, described vertical Line slideway includes two guide rails being vertically installed at respectively positioned at two underframe;The horizontal line slideway passes through bottom bracket It is horizontally arranged between two underframe;The linear slider includes linear slider one, linear slider two and linear slider three;It is described Linear slider one is connected with vertical lines guide rail, and the side of linear slider one is connected with H profile steel support assorted;The straight line Sliding block two and linear slider three, which coordinate, to be horizontally arranged on horizontal line slideway;The track support includes fixed support and activity Support, travel(l)ing rest is connected by bearing with the matching of linear slider two, and wing plate fixed plate is matched by bearing with linear slider three Connection;The travel(l)ing rest is arranged on the side of wing plate fixed plate, and is spaced a distance with wing plate fixed plate;The fixation Support is connected with bottom bracket matching, and fixed support and travel(l)ing rest opposed vertical set and be arranged between two underframe;It is described Elongated track includes being separately mounted to fixed support and two tracks on travel(l)ing rest top;The side cylinder level, which coordinates, to be installed In the side of underframe, and side cylinder matches setting with wing plate fixed plate.
The lift is arranged on the centre position of two underframe by support frame, and lift passes through connecting rod and H profile steel Support assorted is connected, and connecting rod is flexibly connected by connector with H profile steel support, and connector is fixed with H profile steel frame bottom to be connected Connect, lift is worm and gear lift.
The H profile steel support level is arranged between two underframe, two vertical lines guide rails respectively with two underframe Sidepiece be connected vertically, linear slider one be respectively cooperating with install two vertical lines guide rails on, linear slider one and H profile steel Support assorted is fixedly mounted;The H profile steel support is arranged on the sidepiece of linear slider one, and is located remotely from the position of underframe.
The H profile steel support includes side plate, upper backup pad, middle supporting plate and lower supporting plate;The lower supporting plate level is set Put and by connector and connecting rod Matching installation, the vertical lower supporting plate of middle supporting plate upwardly extends setting, upper backup pad level It is arranged on middle supporting plate top;The side plate be arranged in parallel with middle supporting plate, and the upper and lower ends of side plate with support up and down it is same Lateral edges are vertically connected;The linear slider one is connected with side plate.
The horizontal linear track is horizontally arranged between two underframe by bottom bracket, the two ends of bottom bracket and two Individual underframe is connected, and horizontally disposed;The perpendicular angle of underframe at the horizontal linear track and two ends is horizontally set on bottom The upper surface of portion's support, and there is a certain distance at the two ends of horizontal linear track away from underframe.
The track support includes fixed support and travel(l)ing rest, and fixed support is arranged between two underframe, and fixed Support is set close to one of underframe;The fixed support is vertically installed at the bottom branch between horizontal linear track and underframe On frame, support bracket fastened upper horizontal line is higher than the horizontal line of H profile steel upper backup pad;The travel(l)ing rest is parallel with fixed support Set, the lower end of travel(l)ing rest is connected by bearing with linear slider two;It is equal on the top of the fixed support and travel(l)ing rest Matching sets elongated track, and H profile steel web, which coordinates, to be placed on elongated guide rail.
The wing plate fixed plate be arranged in parallel with travel(l)ing rest, and the bottom of wing plate fixed plate passes through bearing and linear slider three Matching is set;The wing plate fixed plate extends straight up from bottom, and the top of the horizontal line higher than travel(l)ing rest on its top Horizontal line, in the outside medium position of the wing plate fixed plate, the side cylinder of matched connection is set;The two of the H profile steel Individual wing plate matching is placed on the H profile steel support between underframe and wing plate fixed plate.
The bearing being capable of rotary motion;Described side cylinder one end and the outside of wing plate fixed plate are connected, the other end It is connected with underframe side wall.
Beneficial effect:
The present invention is used to place H profile steel wing plate by the H profile steel support of setting, and elongated guide rail is used to place H profile steel web, is allowed to It is combined into H profile steel shape;Bearing can be adjusted with H profile steel cross-sectional sizes, and can adjust conjunction with the section of variable section H-type steel Suitable angle;Side cylinder can hold out against the wing plate fixed plate of H profile steel, and then hold out against H profile steel wing plate;Worm and gear lift is lifted Machine, can raise and reduce H profile steel support, the H profile steel to different in width wing plate.The present invention is in the course of the work, it is adaptable to Symmetrically, asymmetric, partial center, variable section H-type steel assembling solder joint, operating efficiency are high, simple for structure.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the part-structure schematic diagram of the present invention.
Fig. 3 is the H profile steel holder part structural representation of the present invention.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.
The present invention proposes the automatic assembling machine suitable for H profile steel, and it includes underframe 1, lift 15, line slideway, straight line Sliding block, H profile steel support 3, elongated track 5, track support, wing plate fixed plate 9, bearing 11, side cylinder 10;The underframe 1 includes Two underframe 1;The lift 15 is arranged between two underframe 1 by support frame 16, and the level of H profile steel support 3, which coordinates, to be installed Between two underframe 1, and it is connected with lift 15;The line slideway includes vertical lines guide rail 4 and horizontal straight line is led Rail 2, the vertical lines guide rail 4 includes two guide rails being vertically installed at respectively positioned at two underframe 1;The horizontal straight line is led Rail 2 is horizontally arranged between two underframe 1 by bottom bracket 14;The linear slider includes linear slider 1, straight line and slided Block 2 13 and linear slider 3 12;The linear slider 1 is connected with vertical lines guide rail 4, and the one of linear slider 1 Side is connected with H profile steel support 3;Linear slider 2 13 and linear slider 3 12 cooperation is horizontally arranged at horizontal straight line and led On rail 2;The track support includes fixed support 5 and travel(l)ing rest 8, and travel(l)ing rest 8 passes through bearing 11 and linear slider 2 13 Matching connection, wing plate fixed plate 9 is connected by bearing 11 with the matching of linear slider 3 12;The travel(l)ing rest 8 is arranged on wing plate The side of fixed plate 9, and be spaced a distance with wing plate fixed plate 9;The fixed support 5 and the company of matching of bottom bracket 14 Connect, fixed support 5 and the opposed vertical of travel(l)ing rest 8 set and be arranged between two underframe 1;The elongated track 6 includes difference Two tracks installed in fixed support 5 and the top of travel(l)ing rest 8;The level of side cylinder 10 coordinates one installed in underframe 1 Side, and side cylinder 10 matches setting with wing plate fixed plate 9.
The lift 15 is arranged on the centre position of two underframe 1 by support frame 16, and lift 15 passes through connecting rod 151 are connected with H profile steel support assorted, and connecting rod 151 is flexibly connected by connector 18 with H profile steel support 3, connector 18 and H The bottom of shape steel bracket 3 is fixedly connected, and lift 15 is worm and gear lift.
The H profile steel support 3 is horizontally arranged between two underframe 1, two vertical lines guide rails 4 respectively with two bottoms The sidepiece of frame 1 is connected vertically, and linear slider 1 is respectively cooperating with installing on two vertical lines guide rails 4, linear slider one 17 coordinate fixed installation with H profile steel support 3;The H profile steel support 3 is arranged on the sidepiece of linear slider 1, and is located remotely from At the position of underframe 1.
The H profile steel support 3 includes side plate 31, upper backup pad 32, middle supporting plate 33 and lower supporting plate 34;The lower support Plate 34 is horizontally disposed and by connector 18 and the Matching installation of connecting rod 151, and the vertical lower supporting plate 34 of middle supporting plate 33 prolongs upwards Setting is stretched, upper backup pad 32 is horizontally set on the middle top of supporting plate 33;The side plate 31 be arranged in parallel with middle supporting plate 33, and side The upper and lower ends of plate 31 are vertical with the ipsilateral penumbra of support 32 up and down to be connected;The linear slider 1 coordinates with side plate 31 and connected Connect.
The horizontal linear track 2 is horizontally arranged between two underframe 1 by bottom bracket 14, and the two of bottom bracket 14 End is connected with two underframe 1, and horizontally disposed;The horizontal linear track 2 and the perpendicular angle level of underframe 1 at two ends The upper surface of bottom bracket 14 is arranged on, and there is a certain distance at the two ends of horizontal linear track 2 away from underframe 1.
The track support includes fixed support 5 and travel(l)ing rest 8, and fixed support 5 is arranged between two underframe 1, and Fixed support 5 is set close to one of underframe 1;The fixed support 5 be vertically installed at horizontal linear track 2 and underframe 1 it Between bottom bracket 14 on, the upper horizontal line of fixed support 5 is higher than the horizontal line of the upper backup pad 32 of H profile steel support 3;The work Dynamic support 8 is be arranged in parallel with fixed support 5, and the lower end of travel(l)ing rest 8 is connected by bearing 11 with linear slider 2 13;Described The top of fixed support 5 and travel(l)ing rest 8 matches the elongated track 6 of setting, and the web 71 of H profile steel 7, which coordinates, is placed on elongated track 6 On.
The wing plate fixed plate 9 be arranged in parallel with travel(l)ing rest 8, and the bottom of wing plate fixed plate 9 passes through bearing 11 and straight line The matching of sliding block 3 12 is set;The wing plate fixed plate 9 extends straight up from bottom, and the horizontal line on its top is propped up higher than activity The horizontal line on the top of frame 8, the side cylinder 10 of matched connection is set in the outside medium position of the wing plate fixed plate 9; Two wing plates 72 matching of the H profile steel 7 is placed on the H profile steel support 3 between underframe 1 and wing plate fixed plate 9.
The bearing 11 being capable of rotary motion;Described one end of side cylinder 10 and the outside of wing plate fixed plate 9 are connected, separately One end is connected with the side wall of underframe 1.
The lift of the present invention is worm and gear lift, and it is fixedly mounted on basal plane by support frame, support frame peace Mounted in the centre position of two underframe, moved in order to which worm and gear lift is promoted on H profile steel smooth vertical, worm and gear liter The elevating screw of drop machine is the connecting rod of lift and H profile steel support, and H profile steel support is realized by rising or falling for leading screw Rise or fall.Bottom bracket is to the horizontal linear track of fixed support, the two ends of bottom bracket respectively with both sides two The inside side walls of underframe, which coordinate, to be fixedly connected, and bottom bracket can use i shaped steel Matching installation, and horizontal line slideway is fixed Installed in the top end surface of bottom bracket, coordinate on one end of horizontal line slideway and wing plate fixed plate and travel(l)ing rest are installed. Wing plate fixed plate and travel(l)ing rest bottom are respectively mounted linear slider, so as to wing plate fixed plate and travel(l)ing rest within the specific limits Do corresponding laterally linear motion, the requirement to adapt to different size H profile steels.It is preferred that, linear slider passes through bearing point It is not connected with wing plate fixed plate with travel(l)ing rest bottom mating, bearing can rotate the need that more can adapt to different welded H section steels Ask.Fixed support is arranged on the side of corresponding travel(l)ing rest, and elongated road is respectively mounted on the top of fixed support and travel(l)ing rest Rail, the web of H profile steel is lain in a horizontal plane on two elongated tracks.
Vertical lines guide rail is separately mounted on two underframe, and is intended on vertical lines guide rail to install linear slider One, linear slider one is fixedly connected with H profile steel support, and when the leading screw of lift rises or falls, H profile steel support passes through straight line Vertically line slideway is vertically raised or declines for sliding block one.In welding, the wing plate and web of H profile steel are first passed through into horizontal straight line Guide rail, vertical lines guide rail and side cylinder adjust suitable position, and adjust fixation by worm and gear lift simultaneously, then enter The corresponding welding of row.
The present invention is simple for structure, and execute-in-place is easy, more can adapt to the H types such as symmetrical, asymmetric, partial center, variable cross-section Steel assembles solder joint, strong adaptability, welding job efficiency high.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.

Claims (8)

1. suitable for the automatic assembling machine of H profile steel, it is characterised in that:It includes underframe, lift, line slideway, linear slider, H profile steel support, elongated track, track support, wing plate fixed plate, bearing, side cylinder;The underframe includes two underframe;It is described Lift is arranged between two underframe by support frame, and H profile steel support level, which coordinates, to be installed between two underframe, and with lifting Machine is connected;The line slideway includes vertical lines guide rail and horizontal line slideway, and the vertical lines guide rail includes two The individual guide rail being vertically installed at respectively positioned at two underframe;The horizontal line slideway is horizontally arranged at two by bottom bracket Between underframe;The linear slider includes linear slider one, linear slider two and linear slider three;The linear slider one is with erecting It is connected to line slideway, the side of linear slider one is connected with H profile steel support assorted;The linear slider two and straight line are slided Block three, which coordinates, to be horizontally arranged on horizontal line slideway;The track support includes fixed support and travel(l)ing rest, travel(l)ing rest It is connected by bearing with the matching of linear slider two, wing plate fixed plate is connected by bearing with the matching of linear slider three;The activity Support is arranged on the side of wing plate fixed plate, and is spaced a distance with wing plate fixed plate;The fixed support and bottom branch Frame matching connection, fixed support and travel(l)ing rest opposed vertical set and are arranged between two underframe;The elongated track includes It is separately mounted to fixed support and two tracks on travel(l)ing rest top;The side cylinder level coordinates one installed in underframe Side, and side cylinder matches setting with wing plate fixed plate.
2. automatic assembling machine according to claim 1, it is characterised in that:The lift is arranged on two by support frame The centre position of underframe, lift is connected by connecting rod with H profile steel support assorted, and connecting rod passes through connector and H profile steel branch Frame is flexibly connected, and connector is fixedly connected with H profile steel frame bottom, and lift is worm and gear lift.
3. automatic assembling machine according to claim 1, it is characterised in that:The H profile steel support level is arranged on two bottoms Between frame, two vertical lines guide rails are connected vertically with the sidepiece of two underframe respectively, and linear slider one is respectively cooperating with Install on two vertical lines guide rails, linear slider one is fixedly mounted with H profile steel support assorted;The H profile steel support is arranged on The sidepiece of linear slider one, and be located remotely from the position of underframe.
4. automatic assembling machine according to claim 3, it is characterised in that:The H profile steel support includes side plate, upper support Plate, middle supporting plate and lower supporting plate;The lower supporting plate is horizontally disposed and passes through connector and connecting rod Matching installation, middle support The vertical lower supporting plate of plate upwardly extends setting, and upper backup pad is horizontally set on middle supporting plate top;The side plate and middle supporting plate It is arranged in parallel, and the upper and lower ends of side plate are vertical with the ipsilateral penumbra supported up and down is connected;The linear slider one is matched somebody with somebody with side plate Close connection.
5. automatic assembling machine according to claim 1, it is characterised in that:The horizontal linear track passes through bottom bracket water Safety is between two underframe, and the two ends of bottom bracket are connected with two underframe, and horizontally disposed;The horizontal straight line Track and the perpendicular angle of the underframe at two ends are horizontally set on the upper surface of bottom bracket, and horizontal linear track two ends the bottom of far from Frame has a certain distance.
6. automatic assembling machine according to claim 4, it is characterised in that:The track support includes fixed support and activity Support, fixed support is arranged between two underframe, and fixed support is set close to one of underframe;The fixed support is erected On the straight bottom bracket being arranged between horizontal linear track and underframe, support bracket fastened upper horizontal line is higher than H profile steel support The horizontal line of upper backup pad;The travel(l)ing rest be arranged in parallel with fixed support, and the lower end of travel(l)ing rest passes through bearing and straight line Sliding block two is connected;The elongated track of setting is matched on the top of the fixed support and travel(l)ing rest, H profile steel web, which coordinates, to be placed On elongated guide rail.
7. automatic assembling machine according to claim 1, it is characterised in that:The wing plate fixed plate is parallel with travel(l)ing rest to be set Put, the bottom of wing plate fixed plate matches setting by bearing with linear slider three;The wing plate fixed plate from bottom straight up Extension, and the horizontal line of the horizontal line higher than the top of travel(l)ing rest on its top, in the outer middle side part position of the wing plate fixed plate Install the side cylinder of matched connection;Two wing plates matching of the H profile steel is placed between underframe and wing plate fixed plate H profile steel support on.
8. automatic assembling machine according to claim 1, it is characterised in that:The bearing being capable of rotary motion;The side gas Cylinder one end and the outside of wing plate fixed plate are connected, and the other end is connected with underframe side wall.
CN201710410541.5A 2017-06-03 2017-06-03 Suitable for the automatic assembling machine of H profile steel Pending CN107127504A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710410541.5A CN107127504A (en) 2017-06-03 2017-06-03 Suitable for the automatic assembling machine of H profile steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710410541.5A CN107127504A (en) 2017-06-03 2017-06-03 Suitable for the automatic assembling machine of H profile steel

Publications (1)

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CN107127504A true CN107127504A (en) 2017-09-05

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CN201710410541.5A Pending CN107127504A (en) 2017-06-03 2017-06-03 Suitable for the automatic assembling machine of H profile steel

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107790950A (en) * 2017-12-14 2018-03-13 江苏联峰工业设备安装工程有限公司 Make H profile steel frock
CN108581319A (en) * 2018-05-04 2018-09-28 旌德县瀚海星云智能化技术研发有限公司 A kind of supporting rack of rail H profile steel door Welding
CN114147638A (en) * 2021-11-24 2022-03-08 山西省安装集团股份有限公司 Positioning device for connecting steel structural members

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102039508A (en) * 2011-01-31 2011-05-04 纪瑞星 H-shape steel fitting up machine
CN202963834U (en) * 2012-10-24 2013-06-05 湖北弘毅钢结构工程有限公司 Worm and gear clamping device for assembling variable-section H-shaped steel
CN103737234A (en) * 2013-12-30 2014-04-23 湖北弘毅钢结构工程有限公司 H-shaped steel eccentric location clamping device
CN103737233A (en) * 2013-12-30 2014-04-23 湖北弘毅建设有限公司 Simply centering and clamping corrugated web plate H-shaped steel assembly machine
CN204381726U (en) * 2014-12-03 2015-06-10 桐乡隆森家具有限公司 A kind of H profile steel plate forming device
CN106112360A (en) * 2016-08-26 2016-11-16 安徽鸿路钢结构(集团)股份有限公司 A kind of H profile steel quick centering group founds machine double spot-welding equipment
CN206764220U (en) * 2017-06-03 2017-12-19 河南鸿宇工业装备工程有限公司 Suitable for the automatic assembling machine of H profile steel

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102039508A (en) * 2011-01-31 2011-05-04 纪瑞星 H-shape steel fitting up machine
CN202963834U (en) * 2012-10-24 2013-06-05 湖北弘毅钢结构工程有限公司 Worm and gear clamping device for assembling variable-section H-shaped steel
CN103737234A (en) * 2013-12-30 2014-04-23 湖北弘毅钢结构工程有限公司 H-shaped steel eccentric location clamping device
CN103737233A (en) * 2013-12-30 2014-04-23 湖北弘毅建设有限公司 Simply centering and clamping corrugated web plate H-shaped steel assembly machine
CN204381726U (en) * 2014-12-03 2015-06-10 桐乡隆森家具有限公司 A kind of H profile steel plate forming device
CN106112360A (en) * 2016-08-26 2016-11-16 安徽鸿路钢结构(集团)股份有限公司 A kind of H profile steel quick centering group founds machine double spot-welding equipment
CN206764220U (en) * 2017-06-03 2017-12-19 河南鸿宇工业装备工程有限公司 Suitable for the automatic assembling machine of H profile steel

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107790950A (en) * 2017-12-14 2018-03-13 江苏联峰工业设备安装工程有限公司 Make H profile steel frock
CN108581319A (en) * 2018-05-04 2018-09-28 旌德县瀚海星云智能化技术研发有限公司 A kind of supporting rack of rail H profile steel door Welding
CN114147638A (en) * 2021-11-24 2022-03-08 山西省安装集团股份有限公司 Positioning device for connecting steel structural members
CN114147638B (en) * 2021-11-24 2023-12-05 山西省安装集团股份有限公司 Positioning device for connecting steel structural members

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Application publication date: 20170905

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