CN111055032A

CN111055032A - Angle-adjustable clamp structure

Info

Publication number: CN111055032A
Application number: CN202010026641.XA
Authority: CN
Inventors: 夏国章; 齐同举
Original assignee: Foshan Longxin Laser Technology Co ltd
Current assignee: Foshan Longxin Laser Technology Co ltd
Priority date: 2020-01-10
Filing date: 2020-01-10
Publication date: 2020-04-24
Anticipated expiration: 2040-01-10
Also published as: CN111055032B

Abstract

The invention discloses an angle-adjustable clamp structure, which comprises: the deviation rectifying assembly comprises a first mounting seat, a rotary part is arranged on the upper side of the first mounting seat, the rotary part is connected with the first mounting seat in a rotating mode through a rotating shaft in vertical arrangement, a servo motor is installed on the lower side of the first mounting seat, an output shaft of the servo motor is fixedly connected with the rotating shaft, a clamping roller is arranged on the rotary part in a relative mode, the clamping roller is vertically arranged, and a plurality of relative clamping spaces are formed between the clamping rollers. According to the invention, the rotary part is driven to rotate by the first servo motor, so that a changeable clamping space is formed between the clamping rollers, the adjustment of the rotating tracks of pipes with different cross-sectional shapes and diameters is facilitated, the clamping rollers are always in contact fit with the surface of the pipe to be cut, the centers of the pipes are always positioned on the same horizontal line, the pipes are prevented from swinging left and right, and the processing deviation is reduced.

Description

Angle-adjustable clamp structure

Technical Field

The invention relates to the field of pipe clamping devices, in particular to an angle-adjustable clamp structure.

Background

When the laser pipe cutting machine is used for cutting the pipe, the pipe needs to be effectively clamped, so that the swinging of the pipe is reduced when the pipe is cut by rotating the cutting system, and the cutting precision of the pipe is influenced. At present, a pipe cutting machine mostly uses a linear supporting device to reduce the vertical shaking of a pipe, when the pipe starts to rotate, the center of the pipe changes along with the rotation of the pipe, and the supporting device can always keep abutting against the lower side of the pipe through a supporting cylinder. However, the diameter of the pipe needs to be considered in the use process of the supporting device, and when the diameter of the pipe is too large or too small, the pipe still can swing unstably in the cutting process. Meanwhile, in actual production, when the pipe to be processed is a special-shaped pipe, the pipe can swing not only in the vertical direction but also in the horizontal direction, so that the pipe and the rotation center of the chuck generate a certain deviation value, and the processing deviation is easy to generate. In view of the above, there is a need for further improvements in pipe gripping devices for pipe cutting machines.

Disclosure of Invention

The present invention is directed to an angle-adjustable clamp structure, which solves one or more of the problems of the prior art, and provides at least one of the advantages of the present invention.

The technical scheme adopted for solving the technical problems is as follows:

an adjustable angle clamp structure comprising: the deviation rectifying assembly comprises a first mounting seat, a rotary part is arranged on the upper side of the first mounting seat, the rotary part is connected with the first mounting seat in a rotating mode through a rotating shaft in vertical arrangement, a servo motor is installed on the lower side of the first mounting seat, an output shaft of the servo motor is fixedly connected with the rotating shaft, a clamping roller is arranged on the rotary part in a relative mode, the clamping roller is vertically arranged, and a plurality of relative clamping spaces are formed between the clamping rollers.

Rotate through a servo motor drive rotating member for form the centre gripping space that can change between the relative clamping cylinder that sets up, do benefit to the rotatory orbit to the tubular product of different cross sectional shapes and cross sectional diameter size and adjust, make clamping cylinder remain the laminating of contradicting throughout with the surface of waiting to cut tubular product, the center of guaranteeing tubular product lies in same water flat line all the time, avoid the tubular product to control the whipping, reduce the processing deviation, servo motor control accuracy is high, do benefit to clamping cylinder and adjust the centre gripping space according to actual demand real-time accuracy.

As the further improvement of above-mentioned technical scheme, still include frame and jacking subassembly, the subassembly of rectifying with the jacking subassembly closes and is called clamping device, clamping device follows the length direction of frame is provided with a plurality of groups, the jacking subassembly includes the bracing piece, first mount pad articulate in on the bracing piece, the lower extreme of bracing piece with the frame is articulated, the below of bracing piece is equipped with the jacking cylinder, the one end of jacking cylinder articulate in the frame, the other end with the bracing piece is articulated, and the bracing piece goes up and down through the drive of jacking cylinder, and the subassembly of rectifying is rectified in the jacking subassembly cooperation, can realize the oscilaltion of subassembly of rectifying, does benefit to and carries out ascending adjustment from top to bottom according to the rotatory orbit of different tubular products, and the subassembly of rectifying of also being convenient for descends in order to reserve the sliding space of chuck device.

As a further improvement of the above technical scheme, a rack and pinion transmission mechanism is arranged on the rack, the rack and pinion transmission mechanism corresponds to the clamping devices one by one, and the rack and pinion transmission mechanism comprises a gear driving assembly and a rack assembly; the gear driving assembly comprises a rotating rod, a gear and a second servo motor, the rotating rod is arranged along the length direction of the rack, the rotating rod is fixedly connected with an output shaft of the second servo motor, and the gear is fixedly arranged on the rotating rod in a penetrating mode; the rack subassembly includes second mount pad and rack plate, the second mount pad is fixed to be located on the medial surface of frame, the second mount pad with rack plate sliding connection on vertical direction, rack plate with the gear meshes mutually, be equipped with the baffle that extends along the fore-and-aft direction on the rack plate, the below of baffle is equipped with the depression bar that extends along the left right direction, the depression bar is fixed to be located on the bracing piece, can support each other between baffle and the depression bar and lean on the extrusion for rack and pinion drive mechanism's second servo motor and jacking cylinder mutually supporting of jacking subassembly act on, thereby realize accurate control to the oscilaltion of rectifying the subassembly.

As a further improvement of the technical scheme, the deviation rectifying assembly is connected with the rack through a sliding connection structure, the sliding connection structure comprises a guide pin and a guide groove, the guide pin is fixedly arranged on the lower side of the first mounting seat, the guide groove corresponds to the guide pin arranged on the inner side face of the rack, the guide groove extends along the length direction of the rack, the guide pin is arranged in the guide groove in a sliding mode, and the sliding connection structure enables the deviation rectifying assembly to stably ascend and descend along the guide groove to avoid shaking.

As a further improvement of the above technical solution, the guide groove includes a first sectional groove and a second sectional groove which are communicated with each other, the first sectional groove and the second sectional groove are both horizontally inclined, the first sectional groove is disposed on the upper side of the second sectional groove, the horizontal inclination angle of the first sectional groove is greater than that of the second sectional groove, the first sectional groove and the second sectional groove are connected through an arc-shaped surface in a smooth transition manner, and the deviation correcting assembly has an unfolding state and a folding state which can be mutually converted; when the deviation rectifying assembly is in the unfolding state, the guide pin is slidably positioned in the first subsection groove, and the clamping roller is kept vertical; work as the subassembly of rectifying is in during fold condition, uide pin slidable ground is located the second segmentation inslot, the centre gripping cylinder orientation the bracing piece is folding, through setting up the guide way segmentation for the subassembly of rectifying has the expansion state and the fold condition that can interconversion, when the subassembly of rectifying is located the expansion state, the uide pin slides in order to realize the fine tuning of the subassembly oscilaltion of rectifying in first segmentation inslot, the arcwall face transition between first segmentation groove and the second segmentation groove, be convenient for rectify the subassembly and convert to fold condition, when the subassembly of rectifying is located the expansion state, the uide pin slides in order to realize the coarse tuning of the subassembly oscilaltion of rectifying in the second segmentation inslot, be convenient for reserve the slide space of the chuck device of frame top.

As a further improvement of the above technical solution, a rolling member is disposed at one end of the guide pin close to the guide groove, the rolling member is rotatably engaged with the guide groove, and the sliding of the guide pin in the guide groove is realized by the rolling member, thereby reducing the friction loss between the guide pin and the guide groove.

As a further improvement of the above technical scheme, a supporting roller is arranged at the upper end of the supporting rod, the first mounting seat is hinged at a position close to the supporting roller, the outer peripheral surface of the supporting roller is a supporting surface, the height of the supporting roller is not less than the height of the rotary member, the supporting roller is used for supporting the pipe, and the supporting roller is driven by the jacking cylinder and the second servo motor in a matched manner, so that the supporting surface of the supporting roller and the outer surface of the pipe can be always abutted and attached, and the center of the pipe can be kept at the same horizontal plane when the pipe rotates along with the cutting system, thereby avoiding swinging up and down and increasing the cutting precision of the pipe.

As a further improvement of the above technical scheme, a plurality of partition plates are arranged in the rack at intervals in the front-back direction, a group of clamping devices is arranged between at least two partition plates, the lower end of the supporting rod is hinged to the partition plates, and the rotating rod penetrates through the partition plates.

As a further improvement of the above technical solution, a rotation stopping member is convexly disposed on an upper end surface of the first mounting seat, and the rotation stopping member is used for limiting a rotation angle of the rotation member.

As a further improvement of the technical scheme, the supporting rod is provided with a bearing seat, the first mounting seat is hinged to the supporting rod through the bearing seat, the inner hole of the bearing seat can be internally penetrated with a rotating shaft, and the abrasion generated by the deviation rectifying assembly when rotating relative to the supporting rod can be reduced by arranging the bearing seat.

Drawings

The invention is further described with reference to the accompanying drawings and examples;

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

FIG. 2 is a schematic structural view of the connection between the clamping device, the rack and pinion mechanism and the sliding connection structure provided by the present invention;

FIG. 3 is a front view of a deviation correcting assembly provided by the present invention;

FIG. 4 is a schematic structural view of a guide groove of the sliding coupling structure provided in the present invention;

FIG. 5 is a schematic structural view of a jacking assembly provided by the present invention;

fig. 6 is a schematic structural diagram of a rack and pinion transmission mechanism provided by the present invention.

In the drawings: 100-deviation rectifying component, 110-first mounting seat, 120-revolving part, 130-rotating shaft, 140-clamping roller, 150-limiting part, 200-frame, 300-jacking component, 310-supporting rod, 311-bearing seat, 320-jacking cylinder, 330-supporting roller, 340-pressure rod, 400-gear rack transmission mechanism, 410-rotating rod, 420-gear, 430-second mounting seat, 440-rack plate, 450-baffle, 500-sliding connection structure, 510-guide pin, 520-guide groove, 521-first segmentation groove, 522-second segmentation groove, 530-rolling part and 600-clapboard.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, if words such as "a plurality" are described, the meaning is one or more, the meaning of a plurality is two or more, more than, less than, more than, etc. are understood as excluding the present number, and more than, less than, etc. are understood as including the present number.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1 to 6, taking an example that the clamp structure is used for clamping a pipe in a laser pipe cutting machine, the angle-adjustable clamp structure of the present invention makes the following embodiments:

the cutting direction of delivery who follows tubular product is equipped with a plurality of clamping device of group on frame 200, clamping device is including rectifying assembly 100 and jacking assembly 300, rectifying assembly 100 is used for avoiding the tubular product to rock about, jacking assembly 300 is used for avoiding the tubular product to rock from top to bottom, rectifying assembly 100 and jacking assembly 300 mutually support and adjust in real time with the rotatory orbit to the tubular product of different cross sectional shapes and cross-sectional diameter size, be located same water flat line all the time in order to guarantee the center of tubular product, reduce the processing deviation.

Specifically, the deviation rectifying assembly 100 includes a first mounting base 110, a rotating member 120 is disposed on an upper side of the first mounting base 110, the rotating member 120 is rotatably connected to the first mounting base 110 through a vertically disposed rotating shaft 130, a first servo motor is mounted on a lower side of the first mounting base 110, an output shaft of the first servo motor is fixedly connected to the rotating shaft 130, that is, the servo motor drives the rotating member 120 to rotate, clamping rollers 140 are disposed on left and right sides of the rotating member 120, the two clamping rollers 140 are both vertically disposed, a clamping space for a pipe is formed between the two clamping rollers 140, the two clamping rollers 140 can be clamped at an adjustable angle through rotation of the rotating member 120, adjustment of rotation tracks of pipes with different cross-sectional shapes and cross-sectional diameters is facilitated, the clamping rollers 140 are always in abutting fit with the surface of the pipe to be cut, and accordingly left and right swinging of the pipe is avoided, the cutting precision of the pipe is improved, the control precision of the first servo motor is high, and the clamping space can be accurately adjusted in real time by the clamping roller 140 according to actual requirements. The jacking assembly 300 comprises a supporting rod 310, the lower end of the supporting rod 310 is hinged to the rack 200, a supporting roller 330 is arranged at the upper end of the supporting rod 310, the outer peripheral surface of the supporting roller 330 is a supporting surface, the height of the supporting roller 330 is not smaller than that of the rotating part 120, the supporting roller 330 is convenient to support pipes in the vertical direction, a first mounting seat 110 is hinged to the supporting rod 310 close to the supporting roller 330, a jacking cylinder 320 is arranged below the supporting rod 310, one end of the jacking cylinder 320 is hinged to the rack 200, the other end of the jacking cylinder 320 is hinged to the supporting rod 310, the lifting of the jacking assembly 300 and the deviation rectifying assembly 100 is controlled, the adjustment of the whole clamping device in the vertical direction according to the rotating tracks of different pipes is facilitated, and meanwhile the deviation rectifying assembly 100 is convenient to descend to reserve the sliding space of.

In consideration of the control precision of the clamping device, a rack and pinion transmission mechanism 400 is arranged on the rack 200, the rack and pinion transmission mechanism 400 and the clamping device are arranged in a one-to-one correspondence manner, the rack and pinion transmission mechanism 400 comprises a gear driving assembly and a rack assembly, the gear driving assembly comprises a rotary rod 410, a gear 420 and a second servo motor, the rotary rod 410 is arranged along the length direction of the rack 200, the rotary rod 410 is fixedly connected with an output shaft of the second servo motor, and the gear 420 is fixedly arranged on the rotary rod 410 in a penetrating manner; the rack component comprises a second mounting seat 430 and a rack plate 440, the second mounting seat 430 is fixedly arranged on the inner side surface of the rack 200, the second mounting seat 430 is connected with the rack plate 440 in a sliding mode in the vertical direction, the rack plate 440 is meshed with the gear 420, a baffle plate 450 extending in the front-back direction is arranged on the rack plate 440, a pressing rod 340 extending in the left-right direction is arranged below the baffle plate 450, the pressing rod 340 is fixedly arranged on the supporting rod 310, the baffle plate 450 and the pressing rod 340 can be mutually abutted to extrude, a second servo motor of the rack-and-pinion transmission mechanism 400 is enabled to mutually cooperate with a jacking cylinder 320 of the jacking component 300, and therefore accurate control over the up-down lifting of the deviation rectifying component 100 is achieved.

In order to facilitate installation, a plurality of partition plates 600 are arranged in the rack 200 at intervals in the front-back direction, a group of clamping devices and a gear-rack transmission mechanism 400 are arranged between the two partition plates 600, the lower ends of the supporting rods 310 are hinged to the corresponding partition plates 600, and the rotating rods 410 penetrate through the partition plates 600.

In some embodiments, the deviation rectifying assembly 100 is connected to the rack 200 through the sliding connection structure 500, the sliding connection structure 500 includes a guide pin 510 and a guide groove 520, the guide pin 510 is fixedly disposed on the lower side of the first mounting seat 110, the guide groove 520 is disposed on the inner side surface of the rack 200 corresponding to the guide pin 510, the guide groove 520 extends along the length direction of the rack 200, the guide pin 510 is slidably disposed in the guide groove 520, and the sliding connection structure 500 enables the deviation rectifying assembly 100 to smoothly ascend and descend along the guide groove 520, so as to avoid shaking.

Further, the guide groove 520 comprises a first sectional groove 521 and a second sectional groove 522 which are communicated with each other, the first sectional groove 521 and the second sectional groove 522 are both horizontally arranged in an inclined manner, the first sectional groove 521 is arranged on the upper side of the second sectional groove 522, the horizontal inclination angle of the first sectional groove 521 is larger than that of the second sectional groove 522, the first sectional groove 521 and the second sectional groove 522 are connected through an arc-shaped surface in a smooth transition manner, and the deviation rectifying assembly 100 has an unfolding state and a folding state which can be mutually converted; when the deviation rectifying assembly 100 is in the unfolded state, the guide pin 510 is slidably located in the first sectional slot 521, and the clamping roller 140 is kept vertical; when the deviation rectifying assembly 100 is in the folded state, the guide pin 510 is slidably located in the second sectional groove 522, the clamping roller 140 is folded towards the supporting rod 310, the guide groove 520 is sectionally arranged, so that the deviation rectifying assembly 100 has an unfolded state and a folded state which can be mutually converted, when the deviation rectifying assembly 100 is in the unfolded state, the guide pin 510 slides in the first sectional groove 521 to realize fine adjustment of the vertical lifting of the deviation rectifying assembly 100, the arc surface between the first sectional groove 521 and the second sectional groove 522 is transited, so that the deviation rectifying assembly 100 is converted to the folded state, when the deviation rectifying assembly 100 is located in the unfolded state, the guide pin 510 slides in the second sectional groove 522 to realize coarse adjustment of the vertical lifting of the deviation rectifying assembly 100, so that a sliding space of the chuck device above the rack 200 is reserved.

In some embodiments, the guide pin 510 is provided with a rolling member 530 at an end close to the guide groove 520, the rolling member 530 is rotatably engaged in the guide groove 520, and the sliding of the guide pin 510 in the guide groove 520 is achieved by the rolling member 530, so that the friction loss between the two is reduced.

In some embodiments, a rotation stopping member is convexly disposed on an upper end surface of the first mounting seat 110, and is used for limiting a rotation angle of the rotation member 120, and when the rotation member 120 rotates under the driving of the first servo motor, the rotation stopping member is used for stopping the rotation member 120, so as to prevent the rotation member 120 from continuously rotating uncontrollably and affecting effective clamping of the pipe.

In some embodiments, the support rod 310 is provided with a bearing seat 311, the first mounting seat 110 is hinged to the support rod 310 through the bearing seat 311, the inner hole of the bearing seat 311 can be penetrated by the rotating shaft 130, and the bearing seat 311 can reduce wear generated when the deviation rectifying assembly 100 rotates relative to the support rod 310.

During the use, will treat the rotatory orbit path map input of all kinds of special-shaped tubular product of cutting to control system in advance, the subassembly 100 of rectifying, jacking subassembly 300, rack and pinion drive mechanism 400 all with control system electric connection, tubular product is under the rotatable clamp of chuck device jack catch, rotate towards the laser cutting head and carry in order to cut, in the rotation of tubular product is carried, set up multiunit clamping device, rock about and about in order to avoid tubular product to appear, the deviation value appears in the centre of rotation of avoiding tubular product and chuck device, reduce the processing deviation of tubular product cutting. Firstly, the deviation correcting component 100 is in a folded state of being folded towards the supporting rod 310, the jacking cylinder 320 is utilized to jack the jacking component 300 upwards, the guide pin 510 connected with the deviation correcting component 100 slides upwards in the second sectional groove 522, and the deviation correcting component 100 rises along with the jacking component 300; when the guide pin 510 slides to the arc-shaped surface transition of the first sectional slot 521 and the second sectional slot 522, the deviation rectifying assembly 100 is converted from the folded state to the unfolded state; when the deviation correcting assembly 100 is in the unfolded state, the guide pin 510 slides in the first sectional groove 521, the clamping roller 140 of the deviation correcting assembly 100 can be kept vertical all the time, and the rotation angle of the rotary member 120 is precisely controlled by controlling the first servo motor to adjust the clamping space according to the cross-sectional shape and the diameter of the pipe, at this time, the rack and pinion transmission mechanism 400 starts to operate, the second servo motor drives the rotary rod 410 to drive the gear 420 to rotate, so that the rack plate 440 slides up and down, the baffle 450 connected with the rack plate 440 and the press rod 340 connected with the support rod 310 are pressed against each other, the second servo motor of the rack and pinion transmission mechanism 400 and the jacking cylinder 320 of the jacking assembly 300 are mutually matched, thereby precisely controlling the up and down lifting of the deviation correcting assembly 100, the supporting roller 330 and the clamping roller 140 are mutually matched, and the supporting roller 330 and the clamping roller 140 can be kept against and jointed with the outer surface of the, when the pipe rotates along with the cutting system, the center of the pipe can be kept on the same horizontal plane, the pipe is prevented from swinging up and down and left and right, and the cutting precision of the pipe is improved.

While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that the present invention is not limited to the details of the embodiments shown and described, but is capable of numerous equivalents and substitutions without departing from the spirit of the invention as set forth in the claims appended hereto.

Claims

1. The utility model provides an adjustable angle's anchor clamps structure which characterized in that: the method comprises the following steps:

subassembly (100) of rectifying, it includes first mount pad (110), the upside of first mount pad (110) is equipped with revolving part (120), revolving part (120) with pivot (130) through vertical setting rotate between first mount pad (110) and connect, a servo motor is installed to the downside of first mount pad (110), a servo motor's output shaft with pivot (130) fixed connection, be equipped with clamping roller (140) on revolving part (120) relatively, clamping roller (140) vertical setting, a plurality of relative setting form the centre gripping space between clamping roller (140).

2. An adjustable angle clamp structure as claimed in claim 1, wherein: still include frame (200) and jacking subassembly (300), rectify subassembly (100) with jacking subassembly (300) are closed and are called clamping device, clamping device follows the length direction of frame (200) is provided with a plurality of groups, jacking subassembly (300) include bracing piece (310), first mount pad (110) articulate in on bracing piece (310), the lower extreme of bracing piece (310) with frame (200) are articulated, the below of bracing piece (310) is equipped with jacking cylinder (320), the one end of jacking cylinder (320) articulate in frame (200), the other end with bracing piece (310) are articulated.

3. An adjustable angle clamp structure as claimed in claim 2, wherein: a rack and pinion transmission mechanism (400) is arranged on the rack (200), the rack and pinion transmission mechanism (400) corresponds to the clamping devices one by one, and the rack and pinion transmission mechanism (400) comprises a gear driving assembly and a rack assembly;

the gear driving assembly comprises a rotating rod (410), a gear (420) and a second servo motor, the rotating rod (410) is arranged along the length direction of the rack (200), the rotating rod (410) is fixedly connected with an output shaft of the second servo motor, and the gear (420) is fixedly arranged on the rotating rod (410) in a penetrating manner;

the rack subassembly includes second mount pad (430) and rack plate (440), second mount pad (430) are fixed to be located on the medial surface of frame (200), second mount pad (430) with rack plate (440) are sliding connection in vertical direction, rack plate (440) with gear (420) mesh mutually, be equipped with baffle (450) that extend along the fore-and-aft direction on rack plate (440), the below of baffle (450) is equipped with depression bar (340) that extend along left right direction, depression bar (340) are fixed to be located on bracing piece (310).

4. An adjustable angle clamp structure according to claim 2 or 3, wherein: deviation correcting assembly (100) with connect through sliding connection structure (500) between frame (200), sliding connection structure (500) include uide pin (510) and guide way (520), uide pin (510) are fixed to be located the downside of first mount pad (110), guide way (520) correspond to uide pin (510) are located on the medial surface of frame (200), guide way (520) are followed the length direction of frame (200) extends, uide pin (510) slide to be set up in guide way (520).

5. An adjustable angle clamp structure as claimed in claim 4, wherein: the guide groove (520) comprises a first sectional groove (521) and a second sectional groove (522) which are communicated with each other, the first sectional groove (521) and the second sectional groove (522) are horizontally arranged in an inclined mode, the first sectional groove (521) is arranged on the upper side of the second sectional groove (522), the horizontal inclination angle of the first sectional groove (521) is larger than that of the second sectional groove (522), the first sectional groove (521) and the second sectional groove (522) are connected in a smooth transition mode through arc-shaped surfaces, and the deviation correcting assembly (100) has an unfolding state and a folding state which can be mutually converted;

when the deviation correcting assembly (100) is in the unfolded state, the guide pin (510) is slidably positioned in the first subsection groove (521), and the clamping roller (140) is kept vertical; when the deviation rectifying assembly (100) is in the folded state, the guide pin (510) is slidably located in the second segment groove (522), and the clamping roller (140) is folded toward the support rod (310).

6. An adjustable angle clamp structure as claimed in claim 5, wherein: a rolling piece (530) is arranged at one end, close to the guide groove (520), of the guide pin (510), and the rolling piece (530) can be rotatably clamped in the guide groove (520).

7. An adjustable angle clamp structure as claimed in claim 2, wherein: the upper end of the supporting rod (310) is provided with a supporting roller (330), the first mounting base (110) is hinged to a position close to the supporting roller (330), the peripheral surface of the supporting roller (330) is a supporting surface, and the height of the supporting roller (330) is not less than that of the rotary member (120).

8. An adjustable angle clamp structure as claimed in claim 3, wherein: a plurality of partition plates (600) are arranged in the rack (200) at intervals in the front-back direction, a group of clamping devices is arranged between at least two partition plates (600), the lower end of the supporting rod (310) is hinged to the partition plates (600), and the rotating rod (410) penetrates through the partition plates (600).

9. An adjustable angle clamp structure as claimed in claim 1, wherein: the upper end face of the first mounting seat (110) is convexly provided with a rotation stopping piece, and the rotation stopping piece is used for limiting the rotation angle of the rotation piece (120).

10. An adjustable angle clamp structure as claimed in claim 2, wherein: the supporting rod (310) is provided with a bearing seat (311), and the first mounting seat (110) is hinged to the supporting rod (310) through the bearing seat (311).