CN212019027U

CN212019027U - Seamless steel pipe bending machine

Info

Publication number: CN212019027U
Application number: CN202020510970.7U
Authority: CN
Inventors: 高庆余; 李万明; 邓保行; 吴继峰; 李晓鹏
Original assignee: Xinpengyuan Liaocheng Intelligent Technology Co ltd
Current assignee: Xinpengyuan Liaocheng Intelligent Technology Co ltd
Priority date: 2020-04-09
Filing date: 2020-04-09
Publication date: 2020-11-27
Anticipated expiration: 2030-04-09

Abstract

The utility model discloses a seamless steel pipe bending machine belongs to bending machine technical field, including the base that is equipped with the mounting groove, be equipped with the first lead screw slider structure of horizontal setting and be located the circular carousel of its top in the mounting groove, be equipped with the slide rail along its radius extension on the circular carousel openly, be equipped with adjusting block on the slide rail, it presss from both sides the cover to be fixed with the U-shaped on the adjusting block, this U-shaped clamp cover one side is equipped with vertical fixed pneumatic cylinder, the top of pneumatic cylinder is fixed with one and presss from both sides the cover with another U-shaped of above-mentioned U-shaped clamp cover parallel, the inboard that two U-shaped clamp covers all is equipped with a pair of gyro wheel, the fixed drive shaft that the suit has the gear of circular carousel rear end face, the second lead screw slider structure of vertical setting is. The utility model discloses can prevent that the inner arc side of seamless steel pipe from taking place to sink or interior wrinkle, and can guarantee seamless steel pipe bending part's radian uniformity, still can adjust the bending radius and control the crooked arc length, it is comparatively convenient to use.

Description

Seamless steel pipe bending machine

Technical Field

The utility model relates to a bending machine technical field, specificly relate to a seamless steel pipe bending machine.

Background

The seamless steel pipe has a hollow section, is used as a pipeline for conveying a large amount of fluid, such as pipelines for conveying petroleum, natural gas, coal gas, water and certain solid materials, and the like, and can be processed into a bent pipe with a certain curvature in the practical application process, in the prior art, the pipe bending work of the pipeline is generally manually operated by workers, repeated operation is needed for processing a bent pipe, a large amount of manpower is wasted, the workload of pipe bending personnel is increased, the pipe bending machine has the advantages that the pipe bending machine is manually operated by workers, certain potential safety hazards exist, the bending precision of bent pipes is relatively poor, the labor productivity is low, collapse and inner wrinkle are easily generated when some steel pipes with thin wall thicknesses are bent, the appearance of the steel pipes is damaged, and the steel pipes cannot be installed and used.

At present, in the prior art, a seamless steel tube bending machine is disclosed in patent with publication number CN 105583270B, which comprises a frame and two side wings disposed on the frame, a rotation block is rotatably connected between the side wings, a semicircular pipe bending die is detachably connected on the rotation block, a pipe bending groove matched with the seamless steel tube is disposed on the circumferential surface of the pipe bending die, a driving mechanism is disposed on the frame, a support plate is disposed below the rotation block, a support groove matched with the seamless steel tube is disposed on the support plate, a clamping mechanism for clamping the seamless steel tube on the pipe bending die is disposed on the rotation block, a sliding frame is disposed on the side of the side wings, a sliding block is slidably connected on the sliding frame, a plug is disposed at one end of the seamless steel tube, and a high-pressure air source is communicated with the other end of the seamless steel tube bending machine, the structure of the seamless steel tube bending machine is simple and convenient, the pipe bending device can prevent the collapse and the inner wrinkle of steel pipes with thinner wall thickness during pipe bending, and the pipe bending precision is high. However, it has the following problems: the bending die can be adapted to the application requirements of different bending requirements (different bending radiuses and bending arc lengths) only by replacing the bending die, and the application is inconvenient.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

The to-be-solved technical problem of the utility model is to provide a seamless steel pipe bending machine, it can prevent that the arc side from taking place to sink or interior wrinkle in the seamless steel pipe, and can guarantee seamless steel pipe bending part's radian uniformity, still can adjust the bending radius and control the bending arc length, and it is comparatively convenient to use.

2. Technical scheme

In order to solve the above problem, the utility model adopts the following technical scheme:

a seamless steel tube bender comprises a frame, the frame comprises a base provided with a concave mounting groove and a vertical plate connected to the rear side of the base, a first lead screw slider structure transversely arranged is arranged in the mounting groove, the first lead screw slider structure comprises a transverse lead screw driven by a forward and reverse rotating motor and a transverse slider sleeved on the transverse lead screw in a thread fit manner, a vertically arranged round turntable is arranged above the side where the transverse lead screw is connected with the forward and reverse rotating motor, a slide rail extending along the radius of the front side of the round turntable is arranged on the radius of the front side of the round turntable, an adjusting slider is arranged on the slide rail, a U-shaped jacket for clamping a seamless sleeve is fixed on the adjusting slider, a hydraulic cylinder vertically fixed at the bottom of the mounting groove is arranged on one side of the U-shaped jacket, and the top of the hydraulic cylinder is fixed with another U-shaped jacket parallel to, a pair of rollers which are aligned up and down and used for clamping a seamless steel tube are arranged on the inner sides of the two U-shaped clamping sleeves, a driving shaft which is vertically connected to the vertical plate through a bearing is fixed at the center of the rear end face of the circular turntable, and a gear is fixedly sleeved on the driving shaft;

the upper end of the transverse sliding block is connected with a second lead screw sliding block structure which is longitudinally arranged, the second lead screw sliding block structure comprises a longitudinal lead screw which is fixed on the transverse sliding block through a bearing and a longitudinal sliding block which is sleeved on the longitudinal lead screw in a thread matching way, a clamping sleeve for a seamless steel pipe to pass through is fixed on the longitudinal sliding block, a compression screw for compressing the seamless steel pipe is arranged at the upper end of the clamping sleeve in a penetrating way, an inverted L-shaped frame plate is vertically fixed at the rear side of the transverse sliding block, the upper end of the longitudinal lead screw penetrates through the transverse part of the L-shaped frame plate and is connected with a rotating handle, a horizontally arranged rack plate is fixedly connected to one side of the L-shaped frame plate facing a forward and reverse motor, strip teeth meshed with gears are arranged on the upper end surface of the rack plate, the transverse sliding block is positioned at one end side of the transverse lead screw connecting, one end of the rack plate, which is back to the L-shaped frame plate, is meshed with the gear.

Further, first lead screw slider structure still includes the guide bar that is on a parallel with horizontal lead screw, the one end of horizontal lead screw is connected with positive reverse motor, and the other end of horizontal lead screw is connected to the lateral wall of mounting groove through the bearing on, the both ends of guide bar are fixed respectively to the lateral wall of the corresponding side of mounting groove on, and sliding sleeve is equipped with the guide block with horizontal slider fixed connection on the guide bar. The guide block can only move transversely along the guide rod, and the guide block is fixedly connected with the transverse sliding block, so that the transverse sliding block can be prevented from rotating when the transverse lead screw rotates, the transverse sliding block is enabled to move horizontally along the length direction of the transverse lead screw, and the design requirement is met.

Furthermore, a locking screw for abutting against the adjusting slide block is arranged on one side wall of the slide rail in a penetrating mode, locking holes matched with the locking screw in a threaded mode are formed in the side wall of the slide rail at equal intervals along the height direction of the side wall of the slide rail, and the interval between every two adjacent locking holes is smaller than the length of the adjusting slide block. The adjusting slide block can be locked on the slide rail by penetrating the locking screws through different locking holes, and the adjusting slide block can be locked by the locking screws to any position along the slide rail because the distance between every two adjacent locking holes is smaller than the length of the adjusting slide block, so that the adjusting slide block is convenient to use.

Further, both ends side of length direction all is equipped with the vertical measuring benchmark pole of fixing in the mounting groove bottom in the mounting groove, and measures the positive superscript of benchmark pole and has the height scale. The height of the corresponding end of the seamless steel tube can be conveniently known through the measuring marker post with the height scales, so that the horizontal state of the seamless steel tube can be kept when the seamless steel tube is installed, and a good foundation is laid for the subsequent bending treatment of the steel tube.

3. Advantageous effects

(1) The utility model discloses be equipped with centre gripping seamless steel pipe both ends side's centre gripping cover and U-shaped clamp cover respectively, and set up first lead screw slider structure and drive seamless steel pipe lateral shifting, simultaneously through L shape frame plate, the rack board, the cooperation transmission of gear and drive shaft can drive circular carousel and rotate, in using, start the positive reverse motor of first lead screw slider structure, the U-shaped clamp cover place department that can drive seamless steel pipe distolaterally uses the pneumatic cylinder upper end is the fulcrum kickup, in the crooked of seamless steel pipe, seamless steel pipe removes to its crooked distolateral, realize the bending process to seamless steel pipe, it is comparatively simple to control.

(2) The utility model discloses be equipped with the gyro wheel in U-shaped jacket inboard for the U-shaped jacket allows seamless steel pipe to remove in the direction of perpendicular to slide rail when realizing centre gripping (highly injecing) to the corresponding end of seamless steel pipe, in the bending process of seamless steel pipe, treat on the seamless steel pipe that the part of bending passes through between the gyro wheel in succession, the roll extrusion of the gyro wheel of both sides, can prevent that the inner arc side of seamless steel pipe from taking place to sink or interior wrinkle, still be favorable to promoting the smooth and easy nature of crooked processing, thereby can guarantee that the radian of seamless steel pipe bending part is unanimous.

(3) The utility model discloses be equipped with first lead screw slider structure and drive seamless steel pipe lateral shifting, in the application, can be according to the crooked arc length of target product, through the unidirectional rotation time of control positive and negative motor that changes, the translation distance of the horizontal slider of control to the translation distance of steerable seamless steel pipe and rack plate, and then the turned angle of steerable circular carousel, finally realize the control to the crooked arc length of seamless steel pipe.

(4) The utility model discloses a second lead screw slider structure can realize the altitude mixture control to the centre gripping cover, can realize the altitude mixture control that presss from both sides the cover to the U-shaped through slide rail and the cooperation setting of adjusting block and pneumatic cylinder to the bending radius that can make seamless steel pipe's bending side uses U-shaped clamp cover place department of pneumatic cylinder upper end as the fulcrum kickup changes thereupon, during the application, can adjust adjusting block for the position of slide rail and the position of vertical slider for vertical lead screw according to the bending radius of target product, realize the regulation to bending radius promptly.

To sum up, the utility model discloses can prevent that the arc side from taking place to sink or interior wrinkle in the seamless steel pipe, and can guarantee seamless steel pipe bending part's radian uniformity, still can adjust the bending radius and control the bending arc length, it is comparatively convenient to use.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a schematic structural view of section A-A of FIG. 1;

fig. 3 is an enlarged schematic view of the structure of the region a in fig. 2.

Reference numerals: 1. mounting grooves; 2. a base; 3. measuring a benchmark; 4. a bearing; 5. a transverse slide block; 6. a clamping sleeve; 7. a longitudinal slide block; 8. a compression screw; 9. a longitudinal lead screw; 10. an L-shaped frame plate; 11. rotating the handle; 12. a rack plate; 13. a gear; 14. a drive shaft; 15. a circular turntable; 16. a slide rail; 17. adjusting the sliding block; 18. a roller; 19. seamless steel pipes; 20. a U-shaped jacket; 21. a positive and negative rotation motor; 22. a transverse lead screw; 23. a vertical plate; 24. a hydraulic cylinder; 25. a locking hole; 26. a guide bar; 27. a guide block; 28. and locking the screw.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Examples

As shown in fig. 1 and 2, a seamless steel tube bender comprises a frame, the frame comprises a base 2 provided with a concave mounting groove 1 and a vertical plate 23 connected to the rear side of the base 2, a first screw slider structure transversely arranged is arranged in the mounting groove 1, the first screw slider structure comprises a transverse screw 22 driven by a forward and reverse motor 21 and a transverse slider 5 screwed on the transverse screw 22, a circular turntable 15 vertically arranged is arranged above the side where the transverse screw 22 is connected with the forward and reverse motor 21, a slide rail 16 extending along the radius of the front side of the circular turntable 15 is arranged on the radius of the front side of the circular turntable 15, an adjusting slider 17 is arranged on the slide rail 16, a U-shaped clamping sleeve 20 for clamping a seamless sleeve 19 is fixed on the adjusting slider 17, a hydraulic cylinder 24 vertically fixed at the bottom of the mounting groove 1 is arranged on one side of the U-shaped clamping sleeve 20, the top of the hydraulic cylinder 24 is fixed with another U-shaped clamping sleeve 20 parallel to the U-shaped clamping sleeve 20, the inner sides of the two U-shaped clamping sleeves 20 are provided with a pair of rollers 18 which are aligned up and down and used for clamping a seamless steel pipe 19, the center of the rear end face of the circular turntable 15 is fixed with a driving shaft 14 which is vertically connected to a vertical plate 23 through a bearing 4, and a gear 13 is fixedly sleeved on the driving shaft 14;

the upper end of the transverse sliding block 5 is connected with a second lead screw sliding block structure which is longitudinally arranged, the second lead screw sliding block structure comprises a longitudinal lead screw 9 which is fixed on the transverse sliding block 5 through a bearing 4 and a longitudinal sliding block 7 which is sleeved on the longitudinal lead screw 9 in a thread matching way, a clamping sleeve 6 for a seamless steel pipe 19 to pass through is fixed on the longitudinal sliding block 7, a compression screw 8 for compressing the seamless steel pipe 19 is arranged at the upper end of the clamping sleeve 6 in a penetrating way, an inverted L-shaped frame plate 10 is vertically fixed at the rear side of the transverse sliding block 5, the upper end of the longitudinal lead screw 9 penetrates through the transverse part of the L-shaped frame plate 10 and is connected with a rotating handle 11, one side of the L-shaped frame plate 10, which faces a forward and reverse motor 21, is fixedly connected with a horizontally arranged rack plate 12, the upper end face of the rack plate 12 is provided with strip teeth meshed with a gear 13, and the transverse sliding block, the slide rail 16 is vertically positioned at the lower part of the circular turntable 15, and one end of the rack plate 12, which is back to the L-shaped frame plate 10, is meshed with the gear 13.

In this embodiment, as shown in fig. 2, the first lead screw sliding block structure further includes a guide rod 26 parallel to the transverse lead screw 22, one end of the transverse lead screw 22 is connected with a forward and reverse rotation motor 21, the other end of the transverse lead screw 22 is connected to the side wall of the mounting groove 1 through a bearing 4, two ends of the guide rod 26 are respectively fixed to the side wall of the corresponding side of the mounting groove 1, and a guide block 27 fixedly connected with the transverse sliding block 5 is slidably sleeved on the guide rod 26. The guide block 27 can only move transversely along the guide rod 26, and because the guide block 27 is fixedly connected with the transverse sliding block 5, the transverse sliding block 5 can be prevented from rotating when the transverse lead screw 22 rotates, so that the transverse sliding block 5 is enabled to move horizontally along the length direction of the transverse lead screw 22, and the design requirement is ensured to be met.

In this embodiment, as shown in fig. 2 and fig. 3, a locking screw 28 for tightly abutting against the adjusting slider 17 is disposed through one side wall of the slide rail 16, and locking holes 25 adapted to the locking screw 28 are disposed on the side wall of the slide rail 16 at equal intervals along the height direction thereof, and the interval between every two adjacent locking holes 25 is smaller than the length of the adjusting slider 17. The adjusting slider 17 can be locked on the sliding rail 16 by passing the locking screws 28 through different locking holes 25, and because the distance between every two adjacent locking holes 25 is smaller than the length of the adjusting slider 17, the adjusting slider 17 can be locked by the locking screws 28 when sliding to any position along the sliding rail 16, which is convenient for application.

In this embodiment, as shown in fig. 1 and 2, the measuring mark post 3 vertically fixed at the bottom of the mounting groove 1 is arranged at both ends of the mounting groove 1 in the length direction, and the height scale is marked on the front surface of the measuring mark post 3. The height of the corresponding end of the seamless steel tube 19 can be conveniently known through the measuring mark post 3 with the height scales, so that the horizontal state of the seamless steel tube 19 can be kept when the seamless steel tube 19 is installed, and a good foundation is laid for the subsequent bending treatment of the steel tube.

The seamless steel pipe bender has the following specific action principle:

firstly, one end of a seamless steel tube 19 penetrates through the clamping sleeve 6, the other end of the seamless steel tube 19 is clamped inside the two U-shaped clamping sleeves 20, and then the position of the adjusting slide block 17 relative to the slide rail 16 and the position of the longitudinal slide block 7 relative to the longitudinal screw 9 are adjusted according to the bending radius of a target product, and the method specifically comprises the following steps: the hydraulic cylinder 24 is started, the rotating handle 11 is rotated, the hydraulic cylinder 24 drives the U-shaped clamping sleeve 20 fixed at the top of the hydraulic cylinder to move up and down, the seamless steel tube 19 pushes the other U-shaped clamping sleeve 20 to move up and down, the adjusting slide block 17 is driven to move on the slide rail 16, the rotating handle 11 drives the longitudinal lead screw 9 to rotate, and the longitudinal slide block 7 cannot rotate because two ends of the seamless steel tube 19 are limited, so that the longitudinal slide block 7 moves up and down along the longitudinal lead screw 9, the clamping sleeve 6 and the U-shaped clamping sleeve 20 are kept to be aligned as far as possible, and the longitudinal slide block 7 can be further finely adjusted by taking the measuring standard rod 3 as a standard, so that the clamping sleeve 6 and the U-shaped clamping sleeve 20 are aligned, and the;

after the adjustment is finished, the compression screw 8 and the locking screw 28 are tightened, then the forward and reverse rotation motor 21 is started to drive the transverse lead screw 22 to rotate, the transverse slide block 5 moves along the length direction of the transverse lead screw 22 due to the guiding action of the guide rod 26 and the guide block 27, the transverse slide block 5 drives the second lead screw slide block structure and the L-shaped frame plate 10 to move towards the side of the circular turntable 15, the seamless steel tube 19 and the rack plate 12 are driven to move transversely, the gear 13 is driven to rotate, the driving shaft 14 is driven to rotate, the circular turntable 15 is driven to rotate successfully, the slide rail 16 rotates along with the second lead screw slide block structure, the corresponding end side of the seamless steel tube 19 is driven to rotate upwards through the adjusting slide block 17 and the U-shaped clamping sleeve 20 on the adjusting slide block 17, the bent end side of the seamless steel tube 19 bends upwards with the U-shaped clamping sleeve 20 at the upper end of the hydraulic cylinder 24 as a fulcrum, and the arrangement of the roller 18 enables the When the seamless steel tube 19 is bent, the seamless steel tube 19 moves towards the bent end side of the seamless steel tube 19, so that the seamless steel tube 19 is bent, and in the process, a part to be bent on the seamless steel tube 19 continuously passes through the rollers 18 and is rolled by the rollers 18 on the two sides, so that the inner arc side of the seamless steel tube 19 can be prevented from collapsing or wrinkling, the smoothness of bending is facilitated, and the radian consistency of the bent part of the seamless steel tube 19 can be ensured;

the translation distance of the transverse sliding block 5 can be controlled by controlling the unidirectional rotation time of the forward and reverse rotation motor 21 according to the bending arc length of a target product, so that the translation distance of the seamless steel pipe 19 and the rack plate 12 can be controlled, the rotation angle of the circular turntable 15 can be controlled, the bending arc length of the seamless steel pipe 19 can be controlled finally, after the forward and reverse rotation motor 21 stops driving, the bending processing of the seamless steel pipe 19 is finished, the forward and reverse rotation motor 21 is started to rotate reversely after the seamless steel pipe 19 is detached from the pipe bender, and the transverse sliding block 5, the rack plate 12 and the circular turntable 15 can be driven to reset so as to be used next time.

According to the above, the utility model discloses can prevent that the inner arc side of seamless steel pipe from taking place to sink or interior wrinkle, and can guarantee the radian uniformity of seamless steel pipe bending part, still can adjust the bending radius and control the bending arc length, it is comparatively convenient to use.

It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as limitations of the present invention, and that changes and modifications to the above described embodiments will fall within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.

Claims

1. A seamless steel tube bender comprises a frame and is characterized in that the frame comprises a base (2) provided with a concave mounting groove (1) and a vertical plate (23) connected to the rear side of the base (2), a first lead screw slider structure transversely arranged is arranged in the mounting groove (1), the first lead screw slider structure comprises a transverse lead screw (22) driven by a forward and reverse motor (21) and a transverse slider (5) sleeved on the transverse lead screw (22) in a threaded fit manner, a vertically arranged round turntable (15) is arranged above the side where the transverse lead screw (22) is connected with the forward and reverse motor (21), a slide rail (16) extending along the radius of the front side of the round turntable (15) is arranged on one radius of the front side of the round turntable, an adjusting slider (17) is arranged on the slide rail (16), and a U-shaped jacket (20) used for clamping a seamless sleeve (19) is fixed on the adjusting slider (17), one side of each U-shaped jacket (20) is provided with a hydraulic cylinder (24) vertically fixed at the bottom of the mounting groove (1), the top of each hydraulic cylinder (24) is fixed with the other U-shaped jacket (20) parallel to the U-shaped jacket (20), the inner sides of the two U-shaped jackets (20) are respectively provided with a pair of rollers (18) which are aligned up and down and used for clamping a seamless steel pipe (19), the center of the rear end face of the circular turntable (15) is fixed with a driving shaft (14) vertically connected to the vertical plate (23) through a bearing (4), and a gear (13) is fixedly sleeved on the driving shaft (14);

the upper end of the transverse sliding block (5) is connected with a second lead screw sliding block structure which is longitudinally arranged, the second lead screw sliding block structure comprises a longitudinal lead screw (9) which is fixed on the transverse sliding block (5) through a bearing (4) and a longitudinal sliding block (7) which is sleeved on the longitudinal lead screw (9) in a thread matching way, a clamping sleeve (6) for a seamless steel pipe (19) to pass through is fixed on the longitudinal sliding block (7), a compression screw (8) for compressing the seamless steel pipe (19) penetrates through the upper end of the clamping sleeve (6), an inverted L-shaped frame plate (10) is vertically fixed on the rear side of the transverse sliding block (5), the upper end of the longitudinal lead screw (9) penetrates through the transverse part of the L-shaped frame plate (10) and is connected with a rotating handle (11), and a rack plate (12) which is horizontally arranged is fixedly connected on one side of the L-shaped frame plate (10) facing, the rack is characterized in that the upper end face of the rack plate (12) is provided with rack teeth meshed with the gear (13), the transverse sliding block (5) is located at one end side of the transverse lead screw (22) connected with the bearing (4) in an initial state, the sliding rail (16) is vertically located at the lower part of the circular turntable (15), and one end of the rack plate (12) back to the L-shaped frame plate (10) is meshed with the gear (13).

2. The seamless steel tube bending machine according to claim 1, wherein the first screw slider structure further comprises a guide rod (26) parallel to the transverse screw (22), one end of the transverse screw (22) is connected with a forward and reverse rotation motor (21), the other end of the transverse screw (22) is connected to the side wall of the installation groove (1) through a bearing (4), two ends of the guide rod (26) are respectively fixed to the side wall of the corresponding side of the installation groove (1), and a guide block (27) fixedly connected with the transverse slider (5) is slidably sleeved on the guide rod (26).

3. The seamless steel tube bender according to claim 2, characterized in that a locking screw (28) for tightly abutting against the adjusting slider (17) is arranged in a through manner on one side wall of the slide rail (16), and locking holes (25) matched with the locking screw (28) in thread are arranged on the side wall of the slide rail (16) at equal intervals along the height direction, and the interval between every two adjacent locking holes (25) is smaller than the length of the adjusting slider (17).

4. The seamless steel tube bender according to any one of claims 1 to 3, characterized in that both ends of the mounting groove (1) in the length direction are provided with measuring levers (3) vertically fixed at the bottom of the mounting groove (1), and the front surface of each measuring lever (3) is marked with height scales.