阅读说明：本技术 型材扭弯设备 (Section bar twisting equipment ) 是由 王传方 邵淦 苏金旺 李志泳 于 2019-09-30 设计创作，主要内容包括：本发明公开了一种型材扭弯设备,包括固定桁架(100)、多个型材保持架(200)和多组扭弯动力机构,固定桁架内形成有沿桁架长度方向(L)的型材容纳空间(S),用于装夹紧固型材的多个型材保持架沿桁架长度方向间隔布置在型材容纳空间内,多组扭弯动力机构安装在固定桁架上并用于一一对应地驱动多个型材保持架扭转以扭弯成型所述型材。根据本发明的型材扭弯设备成本低,可实现沿型材长度方向的间隔夹紧,充分固定型材,使得扭弯过程中型材被紧固装夹、受力均衡,不易产生非预期的各类变形等,通过多组扭弯动力机构进行独立的扭弯作业,从而完成对型材的多点扭弯,提供分散的扭弯作业,使得所需的扭弯力矩小,扭弯质量高、效果好。(The invention discloses a section twisting device which comprises a fixed truss (100), a plurality of section holders (200) and a plurality of groups of twisting power mechanisms, wherein a section accommodating space (S) along the length direction (L) of the truss is formed in the fixed truss, the plurality of section holders for clamping and fastening a section are arranged in the section accommodating space at intervals along the length direction of the truss, and the plurality of groups of twisting power mechanisms are arranged on the fixed truss and are used for driving the plurality of section holders to twist one by one so as to twist and form the section. The sectional material twisting equipment provided by the invention is low in cost, can realize interval clamping along the length direction of the sectional material, fully fixes the sectional material, enables the sectional material to be fastened and clamped in a twisting process, is balanced in stress, is not easy to generate unexpected various deformations and the like, and carries out independent twisting operation through a plurality of groups of twisting power mechanisms, thereby completing multipoint twisting of the sectional material, providing dispersed twisting operation, and ensuring that the required twisting moment is small, the twisting quality is high and the effect is good.)

1. The utility model provides a section bar equipment of twisting, its characterized in that, section bar equipment of twisting includes:

the truss structure comprises a fixed truss (100), wherein a section accommodating space (S) along the length direction (L) of the truss is formed in the fixed truss (100);

the section retainers (200) are arranged in the section accommodating space (S) at intervals along the length direction (L) of the truss, and the section retainers (200) are used for clamping and fastening the section (1000); and

and the multiple groups of twisting power mechanisms are arranged on the fixed truss (100) and are used for driving the section bar retainers (200) to twist one by one so as to form the section bars (1000) in a twisting manner.

2. The profile twisting apparatus according to claim 1, wherein the profile holder (200) comprises an enclosure frame (201) of unitary frame construction and a profile fastening mechanism that secures the profile (1000) in the enclosure cavity passing through the enclosure frame (201).

3. The profile twisting apparatus according to claim 2, wherein the profile fastening means is detachably mounted to the enclosure frame (201).

4. The profile twisting apparatus according to claim 2, wherein the profile fastening mechanism comprises a flange plate hold-down mechanism comprising a flange plate outside clamp plate (202) and a flange plate inside clamp plate (203) positioned and clamped to both sides of a flange plate (1002) of the profile (1000), respectively, the flange plate hold-down mechanism being fastened and mounted to the enclosure (201) by a crimp fastener (800) with adjustable hold-down stroke.

5. Apparatus for twisting profiles according to claim 4, characterised in that the flange plate inside clamping plate (203) is provided with a web end support plate (2031) which presses against the web (1001) of the profile (1000).

6. The profile twisting apparatus according to claim 2, wherein the profile fastening mechanism comprises a web pressing mechanism, the web pressing mechanism comprises a web pressing body (204) and web side pressing plates (205) for pressing against two sides of a web (1001) of the profile (1000), one end of the web pressing body (204) is mounted on the surrounding frame (201), the other end of the web pressing body extends out of a fastener mounting plate (206) arranged in parallel with the web side pressing plates (205) at an interval, and the fastener mounting plate (206) pushes the web side pressing plates (205) towards the web (1001) through a pressing fastener (800) with adjustable pressing stroke.

7. The profile twisting apparatus according to claim 6, wherein the web pressing body (204) is pivotally mounted on the enclosure frame (201) with a pivot axis parallel to the web (1001).

8. The profile twisting apparatus according to claim 2, wherein the enclosure frame (201) of each profile holder (200) is provided with a corresponding enclosure frame connecting shaft hole (207) for passing through along the truss length direction (L).

9. The section twisting device according to any one of claims 2 to 8, wherein the enclosure frame (201) has a four-side frame structure, each twisting power mechanism comprises four pushing units respectively hinged to four corners of the enclosure frame (201), and the pushing units are pivotally mounted on the fixed truss (100).

10. The profile twisting apparatus according to claim 9, wherein the fixed truss (100) has a rectangular cross section and comprises four long pillars (101) extending in the truss length direction (L), the fixed truss (100) is divided into a plurality of truss units in the truss length direction (L), each truss unit comprises a truss beam (102) connecting adjacent long pillars in the truss width direction (W) and a truss column (103) connecting adjacent long pillars (101) in the truss height direction (H), the pushing unit comprises an outer housing part (401) hingedly mounted on the truss column (103) and a laterally telescopically pushed push rod part (402), and an end of the push rod part (402) is hinged with a corner part of the enclosure frame (201).

11. The profile twisting apparatus according to claim 10, wherein the fixed truss (100) further comprises truss bracing mechanisms (104) provided on both sides of the truss in the broadside direction (W).

12. The profile twisting apparatus according to claim 10, wherein the ejector unit is provided with an electronic reading gauge (403) and/or a mechanical reading gauge (404) for measuring the telescopic stroke of the ejector rod portion (402).

13. The profile twisting apparatus according to claim 1, further comprising a lifting bracket (500) arranged outside the end of the fixed truss (100) in the truss length direction (L), the lifting bracket (500) comprising:

a lifting frame roller (501) which is transversely arranged along the width direction (W) of the truss to lift the section bar (1000); and

the lifting upright columns (502) are respectively arranged at two ends of the lifting frame rolling shafts (501), and the vertical positions of the end parts of the lifting frame rolling shafts (501) are adjustably installed on the lifting upright columns (502).

14. The profile twisting apparatus according to claim 1, wherein the profile (1000) is an H-profile and comprises a web (1001) and flange plates (1002) extending in a web thickness direction from both lateral sides of the web (1001).

Technical Field

The invention belongs to the field of section bar processing equipment, and particularly relates to section bar twisting equipment.

Background

In the process of manufacturing and machining heavy industries such as construction machines and large vehicles, large-sized sections are sometimes required to be twisted. The existing sectional material twisting operation mostly adopts fixing two ends and then twisting, the operation mode has larger defects, most obviously, the sectional material cannot be uniformly stressed during twisting, so that the defects of fold deformation, twisting deformation, edge curling, scratch on the surface of the sectional material and the like can be caused in the contact process due to improper pressure.

With the progress of industry, larger-sized profiles are required more and more, and at the moment, a larger torque needs to be provided to twist the profiles, and the large torque is difficult to obtain or is large in realization cost. Meanwhile, the existing section twisting operation mode has a great problem in the process of twisting fastening the section, so that the position of the section is easy to deviate after being stressed, and the twisting is caused to deform seriously. More importantly, the existing section bar has discontinuous twisting process and relatively low efficiency,

disclosure of Invention

Aiming at the defects or shortcomings in the prior art, the invention provides novel section twisting equipment which is suitable for twisting large-size sections, and has the advantages of high working efficiency, high precision and good operation effect.

In order to achieve the above object, the present invention provides a profile twisting apparatus comprising:

the fixed truss is internally provided with a section accommodating space along the length direction of the truss;

the section holders are arranged in the section accommodating space at intervals along the length direction of the truss and used for clamping and fastening the sections; and

and the multiple groups of twisting power mechanisms are arranged on the fixed truss and are used for driving the multiple section bar retainers to twist one by one so as to twist the formed section bars.

In one embodiment, the profile holder comprises an enclosure frame of an integral frame structure and a profile fastening mechanism which fixes the profile passing through the enclosure cavity of the enclosure frame.

Optionally, the profile fastening means is detachably mounted on the enclosure frame.

In one embodiment, the profile fastening mechanism comprises a flange plate pressing mechanism, the flange plate pressing mechanism comprises a flange plate outer side clamping plate and a flange plate inner side clamping plate which are positioned and clamped on two sides of a flange plate of the profile respectively, and the flange plate pressing mechanism is fastened and installed on the enclosure frame through a pressing fastener with adjustable pressing stroke.

Optionally, web end support plates are provided on the flange plate inside clamping plates, which press against the web of the profile.

Further, the section bar fastening mechanism can comprise a web pressing mechanism, the web pressing mechanism comprises a web pressing body and web side pressing plates used for pressing against two sides of a web of the section bar, one end of the web pressing body is installed on the enclosing frame, a fastening piece installing plate arranged in parallel with the web side pressing plates at an interval extends out of the other end of the web pressing body, and the fastening piece installing plate pushes the web side pressing plates towards the web by a compression joint fastening piece with adjustable pressing stroke.

In one embodiment, the web pressing body is pivotally mounted on the enclosure frame with the pivot axis parallel to the web.

Optionally, the surrounding frame of each profile retainer is provided with a corresponding surrounding frame connecting shaft hole for penetrating along the length direction of the truss.

In one embodiment, the enclosure frame is of a four-side frame structure, each group of twisting power mechanisms comprises four pushing units respectively hinged with four corners of the enclosure frame, and the pushing units are pivotally mounted on the fixed truss.

In one embodiment, the fixed truss has a rectangular cross section and includes four long side columns extending along a truss length direction, the fixed truss is divided into a plurality of truss units along the truss length direction, each truss unit includes a truss beam connecting adjacent long side columns along a truss width direction and a truss upright connecting adjacent long side columns along a truss height direction, the pushing unit includes an outer shell portion hinged on the truss upright and a push rod portion pushed in a transverse telescopic manner, and an end portion of the push rod portion is hinged with a corner portion of the enclosure frame.

Optionally, the fixed truss further comprises truss diagonal bracing mechanisms arranged on two sides of the truss in the broadside direction.

In some embodiments, an electronic reading ruler and/or a mechanical reading ruler for measuring the telescopic stroke of the push rod part is arranged on the pushing unit.

In some embodiments, the profile twisting apparatus further comprises a lifting bracket disposed outside an end of the fixed truss in a length direction of the truss, the lifting bracket comprising:

the lifting frame rolling shaft is transversely arranged along the width direction of the truss to lift the section; and

and the lifting upright columns are respectively arranged at two ends of the lifting frame rolling shaft, and the vertical positions of the end parts of the lifting frame rolling shaft are adjustably installed on the lifting upright columns.

In some embodiments, the profile is an H-shaped plate and includes a web and a flange plate extending from both lateral sides of the web in the direction of the thickness of the web.

In the section twisting equipment, the plurality of section holders arranged in the section accommodating space of the fixed truss can clamp and fix the sections at intervals along the length direction of the sections, and then independent twisting operation is carried out on section parts at different length positions through a plurality of groups of twisting power mechanisms, so that the integral twisting or the local twisting of the sections is completed. The required twisting moment is small in dispersed twisting operation and easy to obtain, the twisting degree of each point position is more accurate and controllable, the section bar is fastened and clamped in the twisting process, all parts are more balanced in stress, unexpected twisting deformation is not easy to generate, and the like, and high-quality twisting operation of the section bar can be realized.

Further advantages of the present invention, as well as the technical effects of preferred embodiments, are further described in the following detailed description.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a perspective view of a profile twisting apparatus according to an embodiment of the present invention, showing a profile entering a twisting zone;

FIG. 2 is a perspective view of the fixed truss shown in FIG. 1;

fig. 3 is a perspective view of the profile holder shown in fig. 1, illustrating a clasped state of the profile;

FIG. 4 is a perspective view of the hydraulic thrust mechanism shown in FIG. 1;

FIG. 5 is a perspective view of the lifting bracket shown in FIG. 1; and

fig. 6 is a schematic view of a connection driving structure of the hydraulic thrust mechanism and the section bar holder shown in fig. 1.

Description of the reference numerals

100 fixed truss 200 section bar holder

400 hydraulic thrust mechanism 500 lifting bracket

800 crimping fastener 1000 section bar

1001 web 1002 flange plate

101 long side column 102 truss beam

103 truss upright post 104 truss diagonal bracing mechanism

201 enclose frame 202 flange board outside clamping plate

203 flange plate inside clamping plate 2031 web end support plate

204 web pressing body 205 web side pressing plate

206 fastener mounting plate 207 surrounding frame connecting shaft hole

401 outer housing part 402 push rod part

403 electronic reading ruler 404 mechanical reading ruler

501 lifting frame roller 502 lifting column

L truss length direction W truss width direction

H truss height direction S-shaped material accommodation space

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation. In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

In order to realize high-quality and high-efficiency processing of sectional materials (particularly large-size and large-size sectional materials), the invention provides novel sectional material twisting equipment, and referring to a specific embodiment shown in fig. 1 to 6, the sectional material twisting equipment comprises a fixed truss 100, a plurality of sectional material holders 200 and a plurality of groups of twisting power mechanisms, a sectional material accommodating space S along the length direction L of the truss is formed in the fixed truss 100, and a sectional material 1000 can penetrate into and penetrate out of the sectional material accommodating space S along the length direction L of the truss; the plurality of profile retainers 200 are arranged in the profile accommodating space S at intervals along the length direction L of the truss, and the profile retainers 200 are used for clamping and fastening the fastening profiles 1000; a plurality of sets of twisting power mechanisms are installed on the fixed truss 100 and are used for driving the plurality of profile holders 200 to twist in a one-to-one correspondence manner so that the profiles 1000 are twisted and formed.

In the profile twisting apparatus of the present invention, the profiles are first firmly fastened by the fixed truss 100, the plurality of profile holders 200, etc. to facilitate an accurate and controllable twisting work. Further, through arranging multiunit twist power unit on the section bar length direction the same with truss length direction L, realize the multiple spot twist along section bar length direction, then the required huge twist moment of big specification section bar can disperse to the multiple spot, required each twist moment is little relatively, twist moment obtains the cost lower, it is accurate controllable more to be favorable to the twist degree of each point position, can realize the different twist degrees of the different positions of section bar, can realize the whole twist of section bar, also can only carry out local twist to the section bar.

Because the section bar is firmly fastened and the multipoint twisting mode is adopted, all parts of the section bar are stressed more evenly, the conditions of twisting deformation, wrinkle deformation, edge curling, surface scratching of the section bar and the like are not easy to generate, and the high-quality twisting operation of the section bar can be realized.

Further, referring to fig. 1, the section bar 1000 can enter or move out of the twisting area through the lifting bracket 500, which is convenient and fast, and each group of twisting power mechanisms can coordinate to operate, so that the section bar can operate with high precision and automation and high efficiency, and the following description will be specifically provided.

The profile twisting device of the present invention effectively and firmly fixes the profile as an operation foundation during twisting operation, so that the design of the profile holder 200 is critical. Referring to fig. 3, in an embodiment of the profile holder 200, the profile holder 200 includes an enclosure frame 201 of an integral frame structure and a profile fastening mechanism disposed in an enclosure cavity of the enclosure frame 201, the profile fastening mechanism fixing a profile 1000 clasped through the enclosure cavity. The whole body of the section bar retainer 200 is in an outer contour closed loop structure, so that the section bar retainer is conveniently connected with a twisting power mechanism, the integral twisting of the section bar is realized under the driving of the twisting power mechanism, the torsion distribution is balanced, the stress of the section bar is uniform, and the integral peripheral structure of the section bar retainer 200 can play a role of a fastening force application foundation while twisting.

In the embodiment shown in fig. 3, the enclosure frame 201 has a four-frame structure, and accordingly, referring to fig. 6, each set of twisting power mechanism includes four pushing units respectively hinged to four corners of the enclosure frame 201, and the pushing units in this embodiment use a hydraulic thrust mechanism 400, but are not limited thereto. The hydraulic thrust mechanism 400 is pivotally mounted on the fixed truss 100 and applies force to four corners of the enclosure frame 201 to drive the enclosure frame 201 and the section bar parts fixed therein to integrally rotate and twist. Of course, the enclosure frame 201 may also be a frame structure with other shapes, such as a hexagonal frame, a circular frame, etc., and it is preferable that the enclosure frame is adapted to the shape of the fixed truss 100 to facilitate the fixed installation on the fixed truss 100. As shown in fig. 3, a plurality of screw holes may be formed around the enclosure frame 201, so that the enclosure frame may be securely fastened and installed in the fixed truss 100 shown in fig. 2 by fastening bolts or the like, and the installation may be more easily performed, and the installation position may be adjusted in the truss length direction L according to the twisting requirement.

Wherein preferably the profile fastening means are detachably mounted to the enclosure frame 201. The detachable installation of the section fastening mechanism facilitates the disassembly, assembly and transportation of the section holder 200, and the matched section fastening mechanism can be selected correspondingly according to the section specification. The structure and the clamping mode of the section fastening mechanism are not limited, and only the section can be firmly and effectively clamped, so that integral clamping and integral balanced twisting stress are realized.

It is noted that in the embodiment herein, the profile 1000 is an H-shaped plate and includes a web 1001 and flange plates 1002 extending from both lateral sides of the web 1001 in the thickness direction of the web, as shown in fig. 3. Of course, the section twisting device is not limited to only twisting and forming the H-shaped plate, and can also be applied to sections with other shapes, and only needs to be matched with a corresponding section fastening mechanism. For example, the form may be an "eccentric i" or "non-eccentric i", or other shaped sheet such as a T-shaped sheet, or the like.

In one specific configuration shown in fig. 3, the section fastening mechanism adapted to clamp the H-shaped plate includes a flange plate pressing mechanism for clamping the flange plate of the fixed H-shaped plate, the flange plate pressing mechanism includes a flange plate outer side clamping plate 202 and a flange plate inner side clamping plate 203 respectively positioned and clamped at two sides of a flange plate 1002 of the section 1000, and the flange plate pressing mechanism is fastened and mounted to the enclosure frame 201 by a crimping fastener 800 with adjustable pressing stroke. The flange plate outside clamping plate 202 and the flange plate inside clamping plate 203 can be inserted before or after the profile 1000 is inserted into the profile receiving space S.

Taking the flange plate 1002 at the bottom end of the web 1001 shown in fig. 3 as an example, the mounted flange plate outside clamping plate 202 is connected to the bottom frame of the enclosure frame 201 by a fastening bolt serving as a crimping fastener 800 and applies a vertical clamping pressing force to the clamping flange plate 1002. Meanwhile, the flange plate outside clamping plate 202 and the flange plate inside clamping plate 203 as a whole can be fixed to the lateral side frame of the enclosure frame 201 by the lateral side crimping fastener 800 shown in fig. 3. In order to clamp the profile more stably and reliably, the flange plate inside clamping plate 203 is further provided with a web end supporting plate 2031 which is pressed against the web 1001 of the profile 1000 to provide stressed support for the upper end and the lower end of the web 1001 which is stressed more during twisting. The flange plates 1002 at the top ends of the webs 1001 can be clamped and fixed through the same clamping plates and clamping pre-tightening force is applied, so that the flange plates 1002 on two sides can be firmly and stably clamped and fixed.

In order to further clamp and fix the web 1001, the profile fastening mechanism further comprises a web pressing mechanism for protecting the web when the profile is twisted, so that the web is prevented from being seriously twisted and deformed. The web pressing mechanism comprises a web pressing body 204 and web side pressure plates 205 used for pressing against two sides of a web 1001 of the profile 1000, one end of the web pressing body 204 is installed on the surrounding frame 201, a fastener mounting plate 206 arranged in parallel and at a distance from the web side pressure plates 205 extends out of the other end, and the fastener mounting plate 206 presses the web side pressure plates 205 towards the web 1001 through a pressing fastener 800 with adjustable pressing stroke. As shown in fig. 3, a plurality of fastening bolts are arranged on the fastening member mounting plate 206 at intervals, and the fastening bolts laterally push the web side pressing plate 205 and can adjust the pushing stroke until the web side pressing plate 205 is tightly attached to the side wall surface of the web 1001 and applies lateral pre-pressure to the side wall surface. Optionally, the web pressing body 204 may be pivotally mounted on the enclosure frame 201 with the pivot axis parallel to the web 1001. As shown in fig. 3, the web pressing body 204 is pivotally connected to the lateral side frames of the enclosure frame 201 by a vertical pivot shaft, and can pivot outward to avoid mechanical interference when the profile is inserted into or pulled out of the enclosure frame, and is clamped and fixed after the profile is in place.

In this embodiment, the section holder 200 effectively clamps and fixes the web 1001 and the flange plate 1002 of the section bar at the same time, so that the web and the flange plate can be twisted together during the twisting operation of the H-shaped plate, and the web is protected while the upper and lower flange plates are twisted, thereby preventing the deformation out of control due to the instability of the web. Thus, the torsion and the twisting angle of the web plate and the flange plate during twisting can be well controlled, and the stress is uniform, the processing is accurate, the angle is easy to adjust, and the like.

It should be noted that, unless otherwise specified, the terms of orientation such as "upper, lower, inner, outer, axial, transverse, height direction, length, width" referred to herein are used with reference to the length, width and height of the fixed truss 100 and the inner and outer orientations of the profile accommodating space S shown in fig. 1 and 2, such as the transverse direction, i.e., the truss width direction W, and the top and bottom portions, i.e., the upper and lower portions relative to the truss height direction H.

According to the twisting requirement of the section bar, the section bar holder 200 shown in fig. 3 can select a proper position point along the length direction of the section bar for clamping and fixing, specifically, can be embedded in a corresponding position in the fixed truss 100, and can adjust the mounting position point of the section bar holder 200 according to different stages of primary twisting, secondary twisting and the like, so as to perform corresponding dismounting and remounting.

As shown in fig. 1 and 2, a fixed truss 100 as a gantry mechanism is used to provide a good clamping foundation and a good force application foundation for the twisting of the profile, and plays an important role in supporting. The fixed truss 100 can be formed by welding H-shaped steel, has good stability and bears high strength.

In one specific configuration shown in fig. 2, fixed truss 100 has a rectangular cross section and includes four long-side columns 101 extending in truss length direction L, and fixed truss 100 is divided into a plurality of truss units in truss length direction L, each including truss cross members 102 connecting adjacent long-side columns in truss width direction W and truss upright members 103 connecting adjacent long-side columns 101 in truss height direction H. Further, to provide more stable support, the fixed truss 100 may further include truss bracing mechanisms 104 disposed on both sides of the truss in the broadside direction W. In the fixed truss 100 of the present embodiment, a modular arrangement is adopted, that is, the fixed truss is divided into a plurality of truss units along the length direction L of the truss, so as to be suitable for multipoint clamping and multipoint torsion distribution of the twisting of the section bar, and be suitable for section bars with different lengths. The length of the individual truss elements may be the same or different depending on the distribution of the torsion points determined for the specific twist forming needs of the specific profile.

The twisting power mechanism is used for providing twisting power, and various power modes such as motor driving, air cylinder driving and the like can be selected. Specifically, as shown in fig. 1 and 6, each group of twisting power mechanisms includes four hydraulic thrust mechanisms 400 respectively hinged to four corners of the enclosure frame 201, and hydraulic cylinders of the hydraulic thrust mechanisms 400 are pivotally mounted on the fixed truss 100. As shown in fig. 4 and 6, the hydraulic thrust mechanism 400 includes an outer shell 401 of a hydraulic cylinder hinged to the truss column 103 and a push rod 402 for laterally extending and retracting, and an end of the push rod 402 is hinged to a corner of the enclosure frame 201. Specifically, the end of the push rod part 402 shown in fig. 4 is a hinge part, which includes a push plate fixedly connected with the corner part of the surrounding frame 201, and is fixedly connected by fastening bolts. Therefore, the four hydraulic cylinders can coordinately and jointly drive the section bar retainer 200, and the four hydraulic cylinders push the four corner parts of the enclosure frame 201 to move through the thrust plate at the tail end, so that the section bar retainer 200 is integrally twisted, and the section bar is driven to be integrally twisted.

Wherein, the upper frame and the lower frame of the surrounding frame 201 of each section holder 200 installed in the fixed truss 100 can be provided with corresponding surrounding frame connecting shaft holes 207 for penetrating along the length direction L of the truss. When the section bar holding frame 200 is integrally twisted, the surrounding frame 201 can rotate around a surrounding frame connecting shaft hole 207.

In addition, in order to control the precise torsion, achieve automatic control and measure the torsion, the hydraulic thrusting mechanism 400 is further provided with an electronic reading ruler 403 and/or a mechanical reading ruler 404 for measuring the telescopic stroke of the thrusting rod part 402, as shown in fig. 4. After the section bar is twisted in place, the mechanical reading ruler 404 can be manually checked, and construction method errors caused by error reporting of the electronic reading ruler 403 can be avoided.

In order to facilitate the mold entering and mold exiting of the section bar, the section bar twisting apparatus shown in fig. 1 further includes a lifting bracket 500 disposed outside the end of the fixed truss 100 in the length direction L of the truss, and as shown in a specific structure shown in fig. 5, the lifting bracket 500 includes a lifting frame roller 501 transversely disposed in the width direction W of the truss to lift the section bar 1000 and lifting columns 502 respectively disposed at both ends of the lifting frame roller 501, and the end of the lifting frame roller 501 is vertically adjustably mounted on the lifting columns 502. In fig. 5, a vertical sliding rod is arranged on a lifting upright 502, a sliding sleeve sleeved on the vertical sliding rod is formed at the end of a lifting frame roller 501, the position of the end is adjusted by sliding of the sliding sleeve, and then the lifting frame roller can be fixed by a clamping plate with a fastener at the end. The lifting bracket 500 not only can well adjust the lifting height, but also can enable the lifting frame roller 501 to form a certain angle, and can conveniently and quickly adjust the lifting height and angle.

In the specific processing process, firstly, the twisted line type of the profile is determined, the twisting degree of the flange plate and the web plate of the H-shaped profile at each length position part is determined, and then, each profile retainer 200 is correspondingly fixedly embedded in each position point of the fixed truss 100. Taking the case that both the web plate and the flange plate need to be bent to a certain degree, the section bar 1000 to be twisted is firstly inserted into a mold through the lifting bracket 500, namely, the section bar 1000 penetrates into the section bar accommodating space S of the fixed truss 100, enters the twisting area, is aligned and aligned in position, and the section bar 1000 is clamped and fixed through each section bar holder 200. And then, according to the required torsion degree of the section bar parts in each truss unit, adjusting the extension or retraction set stroke of the hydraulic thrust mechanism 400 of each part, thereby driving the section bar holder 200 to be integrally twisted to a certain degree and finishing the torsion of the section bar. The profile fastening mechanism is then loosened, the profile 1000 is measured and compared to the target profile, and if the profile is in line, the profile is removed from the twisting zone, and if not, the twisting process is repeated until the target profile is obtained.

The sectional material twisting equipment and the operation process thereof based on the general inventive concept are explained above, so that the twisting operation with high precision, high efficiency and low cost for the sectional material with large size specification is realized, and the variable-curvature cold-bending forming for the sectional material is realized.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.

In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.