Clamping equipment applied to seamless metal steel pipe machining

Abstract

The invention relates to the technical field of seamless metal steel pipe machining, in particular to clamping equipment applied to seamless metal steel pipe machining, which comprises an L-shaped support, a plurality of groups of push rod motors are arranged at the top end of a horizontal support arm of the L-shaped support, and the top ends of output shafts of the push rod motors are connected with ejector rods; the supporting plate is rotationally arranged at the top end of a vertical supporting arm of the L-shaped support, and the bottom end of the supporting plate makes contact with an ejector rod at the top end of the push rod motor; and the external penetrating assembly is fixedly installed on one side of the top end of the supporting plate, and a deflection abutting rod which is adjusted in a single direction in a normal state is arranged on the external penetrating assembly. In the actual use process, stable abutting can be effectively conducted on the steel pipe from the outer side and the inner side, in the outer side abutting process, the controllable one-way process is achieved, reverse operation is convenient, rotation adjustment of the steel pipe can be achieved as needed in the inner abutting process, and the abutting state during rotation is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of seamless metal steel pipe processing, and in particular to a clamping device used for seamless metal steel pipe processing. Background Art

[0002] Seamless steel pipe is a rolled steel pipe without welds. It is made of steel ingots or solid tubes through perforation to form rough tubes, and then hot rolled, cold rolled or cold drawn. It has a hollow cross-section and no seams around the long steel strips. It is widely used in the construction industry, machinery manufacturing, petrochemical industry and energy transportation, and plays a relatively important role.

[0003] In the actual processing process, its surface and port need to be finely processed for subsequent use. However, due to its round tube design, it is not easy to stably clamp it during the processing and clamping process. It needs to rotate according to its characteristics during the processing. The axis centerline is prone to offset during the clamping process of the clamping device, which affects the subsequent processing accuracy. For this reason, we propose a clamping device for seamless metal steel pipe processing. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a clamping device used for processing seamless metal steel pipes.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A clamping device used for processing seamless metal steel pipes, comprising: The L-shaped bracket is L-shaped. The top of the horizontal arm of the L-shaped bracket is provided with a plurality of push rod motors. The top of the output shaft of the push rod motor is connected with a push rod for adjusting the angle in the later steel pipe processing process, so as to facilitate the lifting of the steel pipe; The support plate is rotatably arranged at the top of the vertical support arm of the L-shaped bracket, and the bottom end of the support plate contacts the top rod of the push rod motor, so as to facilitate the subsequent flipping angle adjustment of the support plate, the upper components and the steel pipe; The external penetration component is fixedly installed on one side of the top of the support plate, and is used to adaptively resist the steel pipe from the outside. The external penetration component is provided with a deflection resistance rod that can be adjusted in one direction under normal conditions, which is convenient for effective locking during the process of resisting the steel pipe from the outside, and avoids easy reversal, which causes the locking resistance state to loosen. The external penetration component is also provided with a meshing rack and a one-way gear ring that can adjust the return reversal of the deflection resistance rod, which are used to cooperate and reset the position of the deflection resistance rod during the adjustment process; The top bracket is fixedly mounted on the top of the support plate away from the side of the external penetration component, the top bracket is in an inverted U shape, and a circular through hole is provided on the side of the top bracket close to the external penetration component; The inner penetration component is rotatably arranged at the circular through hole on the inner penetration component. The inner penetration component is provided with an internal top contact component for contacting the steel pipe from the inside, which is used to contact from the inside of the steel pipe to further lock the position of the steel pipe. The inner penetration component includes a rotating plate for contacting the end of the steel pipe during the steel pipe processing to avoid slippage during the inclination adjustment of the steel pipe processing; A power switching assembly is arranged on one side of the rotating plate, and the power switching assembly includes an external spline shaft sleeve for controlling the rotation of the rotating plate and an internal spline shaft for controlling the adjustment of the internal top contact assembly, and the internal spline shaft is located on the inner side of the external spline shaft sleeve, and a slidable composite spline shaft is provided at the port of the external spline shaft sleeve for switching during actual use, so as to achieve the purpose of controlling the rotation of the rotating plate or the adjustment of the internal top contact assembly, and realize the switching of the control and adjustment mode; It also includes a drive motor and a pneumatic push rod. The drive motor is used to control the rotation of the power switching component and provide power output for the adjustment operation of the inner penetration component. The pneumatic push rod is used to control the position switching of the composite spline shaft to achieve the adjustment of the operation steps on the inner penetration component.

[0006] As a preferred technical solution of the present application, the axis lines of the outer penetration component and the inner penetration component coincide with each other; The external penetration component includes a penetration tube fixedly installed on the top of the support plate through a support frame, and external interference components are rotatably arranged on both sides of the penetration tube, and the external interference component includes a rotating ring rotatably sleeved on the outside of the penetration tube, and six groups of deflection interference rods are rotatably arranged on the inner side of the rotating ring in an array, and a penetration through hole corresponding to the deflection interference rod is opened on the outside of the penetration tube, and a fixed guide rod is fixedly installed at the penetration through hole, and sliding grooves adapted to the fixed guide rod are opened on both sides of the deflection interference rod along the length direction, and then when the penetration tube rotates, the deflection interference rod can be deflected under the action of the fixed fixed guide rod and the sliding groove, so that the distance between the end of the deflection interference rod and the internal axis line of the penetration tube can be synchronously adjusted, so as to facilitate the interference positioning of the outside of steel pipes of different specifications; A one-way gear ring is provided on the outer side of the end of the penetration tube, and a spring pull rod is passed through the rotating ring, and one end of the spring pull rod is connected to an engaging rack matched with the one-way gear ring. Therefore, during the adjustment process, when the rotating ring is rotated without external interference, only the deflection resistance rod can be retracted inward to achieve resistance to the surface of the steel pipe. If diameter expansion is required, it is only necessary to control the spring pull rod and the engaging rack to release the meshing relationship between the engaging rack and the one-way gear ring. At this time, the rotating ring can be reversely rotated to achieve the purpose of expanding the deflection resistance rod to the outside, thereby achieving the effect of diameter expansion. Therefore, in the actual processing process, it is more convenient to adaptively clamp the steel pipe from the outside of the steel pipe.

[0007] As a preferred technical solution of the present application, the inner side penetration component comprises a rotating plate rotatably arranged at a circular through hole on the top bracket, the side of the rotating plate is provided with an internal top contact component at the center of the circle, the internal top contact component comprises an adjusting screw rotatably arranged on the side of the rotating plate, and the side of the rotating plate is also fixedly installed with a fixed sleeve covered on the outside of the adjusting screw at the center of the circle, three groups of penetration holes are provided on the fixed sleeve, the outer thread sleeve of the adjusting screw is provided with a threaded sleeve, and one end of the outer side of the threaded sleeve is connected with a hinged rod penetrated at the penetration hole; The side of the rotating plate is provided with a plurality of guide grooves pointing to the center of the circle, and a directional rod is slidably arranged in the guide groove. The directional rod passes through a through hole on the fixed sleeve and is hinged with the threaded sleeve. Thus, during the rotation of the adjusting screw, the threaded sleeve can be horizontally moved in cooperation with the limiting effect of the directional rod, which is convenient for subsequent adjustment. The end of the fixed sleeve is fixedly installed with a sliding shaft rod at the center of the circle, and the outer directional sliding sleeve of the sliding shaft rod is provided with a sliding shaft sleeve that can be locked in position, and the outer side of the sliding shaft sleeve is evenly hinged with a linkage rod corresponding to the hinge rod on the threaded sleeve, and the corresponding hinge rod and the end of the linkage rod are hinged with the same set of internal friction strips; Therefore, during the movement and adjustment of the threaded sleeve, the hinged rod and the linkage rod can be driven to adjust the angle under the action of the sliding sleeve that is locked in position, thereby further realizing the distance adjustment between the internal interference strip and the overall axial center line of the inner penetration component, and ultimately achieving the purpose of stable interference from the inside for steel pipes of different diameters.

[0008] As a preferred technical solution of the present application, the internal spline shaft is coaxially connected to the adjusting screw, providing a stable power output basis for the subsequent adjustment of the internal top contact component.

[0009] As a preferred technical solution of the present application, the power switching assembly includes an external spline sleeve, the external spline sleeve is hollow and has a spline groove 1 at the end, the internal spline shaft of the composite spline shaft is coaxially connected to the internal top contact assembly on the rotating plate, and a spline groove 2 is provided at the center of the end of the internal spline shaft; The composite spline shaft is slidably inserted at the port of the external spline shaft sleeve, and the two ends of the composite spline shaft are respectively provided with connecting spline shafts adapted to spline groove one and spline groove two, and the ends of the composite spline shaft are fixedly connected with a power output shaft rod, and the power output shaft rod is slidably sleeved on the outside of the output shaft of the driving motor, and the outer end of the power output shaft rod is provided with two sets of limit rings, and a sleeve ring is rotatably sleeved between the limit rings, and the sleeve ring is connected to the output shaft of the pneumatic push rod through a connecting rod, and then under the action of the pneumatic push rod, the position switching of the composite spline shaft is realized, and the rotation of the inner penetration component as a whole and the opening and closing control operation of the internal top contact component are switched, so as to achieve the purpose of function switching during the actual operation process.

[0010] As a preferred technical solution of the present application, a locking tooth ring is provided on the outer side of the internal spline shaft, and a telescopic rod is inserted on the inner side of the external spline shaft sleeve, and a return spring is sleeved on the outer side of the telescopic rod. One end of the telescopic rod is connected to a limited position rack; A push rod is hinged on one side of the telescopic rod, and one end of the push rod is hinged on the composite spline shaft, and when the composite spline shaft is engaged with the external spline shaft sleeve, the limit rack is engaged with the locking gear ring, and then when the composite spline shaft is pushed subsequently, the push rod deflects and drives the telescopic rod to retract. At this time, the engagement relationship between the limit rack and the locking gear ring is released, which facilitates the engagement of the composite spline shaft with the internal spline shaft to drive the adjustment of the internal interference component, and when the composite spline shaft is engaged with the external spline shaft sleeve to drive the inner penetration component to rotate as a whole, the limit rack is engaged with the locking gear ring to ensure the locking of the internal interference component and prevent the internal interference component from self-rotating and loosening during the overall rotation of the inner penetration component.

[0011] The beneficial effects of the present invention are: By setting the spring pull rod and meshing rack on the external penetration component in conjunction with the one-way gear ring, the limiting state of the deflection resistance rod on the outside of the steel pipe can be adjusted in a one-way manner, avoiding the phenomenon of loosening caused by misoperation, and when loosening is required later, the adjustment is extremely convenient and easy to operate; By means of the internal resistance component on the inner penetration component cooperating with the adjustable composite spline shaft on the power switching component and the arrangement of the external spline shaft sleeve and the internal spline shaft, the inner penetration component can realize the switching of the work process under the action of the adjustable composite spline shaft, and the effect of the resistance inside the steel pipe can be realized more conveniently, and the purpose of driving the steel pipe as a whole to perform rotation processing can also be realized when necessary; Through the coordinated operation of the composite spline shaft, push rod, telescopic rod, locking tooth ring and limit rack, the internal spline shaft is effectively locked during the process of the inner penetration component driving the steel pipe to rotate as a whole, thereby preventing the internal interference component from being loosened when following the rotation of the inner penetration component, thereby further ensuring the internal interference effect.

[0012] In summary, the present application can effectively and stably resist the steel pipe from the outside and the inside during actual use, and the outer resistance process is a controllable unidirectional process, and the reverse operation is convenient, ensuring stable clamping while facilitating subsequent operations. In the inner resistance process, the rotation adjustment of the steel pipe can be realized as needed, and the resistance state during rotation is ensured, which facilitates adjustment while ensuring the stability of the resistance, thereby achieving the purpose of stable resistance to the steel pipe from the inside and the outside, facilitating clamping and processing, and the above-mentioned external clamping and internal resistance effects are performed simultaneously, which effectively ensures the stability of the axis line of the steel pipe during the clamping process, and avoids the phenomenon that the axis line shakes and affects the processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the upper structure of a clamping device for seamless metal steel pipe processing proposed by the present invention; Figure 2 This is a schematic diagram of the main structure of a clamping device for seamless metal steel pipe processing proposed by the present invention; Figure 3 This is a schematic structural diagram of an external threading component of a clamping device applied to seamless metal steel pipe processing proposed by the present invention; Figure 4 A partial structural schematic diagram of an external threading component of a clamping device applied to seamless metal steel pipe processing proposed by the present invention; Figure 5 for Figure 4 The enlarged structural diagram at A in the middle; Figure 6 A partial structural schematic diagram of a clamping device for seamless metal steel pipe processing proposed by the present invention; Figure 7 This is a schematic structural diagram of an inner side threading assembly of a clamping device applied to seamless metal steel pipe processing proposed by the present invention; Figure 8 This is a schematic structural diagram of a power switching assembly of a clamping device applied to seamless metal steel pipe processing proposed by the present invention; Fig. 9 A partial structural schematic diagram of a power switching assembly of a clamping device applied to seamless metal steel pipe processing proposed by the present invention; Fig.10 The cross-sectional structural schematic diagram of a power switching assembly of a clamping device applied to seamless metal steel pipe processing proposed by the present invention.

[0014] In the figure: 1. L-shaped bracket; 2. push rod motor; 3. support plate; 4. external penetration assembly; 41. penetration tube; 42. rotating sleeve; 43. meshing rack; 44. spring pull rod; 45. one-way gear ring; 46. deflection interference rod; 47. fixed guide rod; 5. inner penetration assembly; 51. rotating plate; 52. directional rod; 53. threaded sleeve; 54. adjusting screw; 55. internal interference strip; 56. sliding shaft; 57. sliding sleeve; 6. top bracket; 7. driving motor; 8. pneumatic push rod; 9. power switching assembly; 91. external spline sleeve; 92. power output shaft; 93. sleeve ring; 94. composite spline shaft; 95. push rod; 96. telescopic rod; 97. internal spline shaft; 98. locking gear ring; 99. limit rack; 910. reset spring; 10. fixed sleeve. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0016] Reference Figure 1-10 , a clamping device used for seamless metal steel pipe processing, comprising: The L-shaped bracket 1 is L-shaped, and the top of the horizontal arm of the L-shaped bracket 1 is provided with a plurality of push rod motors 2. The top of the output shaft of the push rod motor 2 is connected with a push rod for adjusting the angle in the later steel pipe processing process, so as to facilitate the lifting of the steel pipe; The support plate 3 is rotatably arranged at the top of the vertical support arm of the L-shaped bracket 1, and the bottom end of the support plate 3 contacts the top rod of the push rod motor 2, so as to facilitate the subsequent flip angle adjustment of the support plate 3 and the upper components and steel pipe; The external penetration component 4 is fixedly mounted on one side of the top end of the support plate 3 and is used to adaptively resist the steel pipe from the outside. The external penetration component 4 is provided with a deflection resistance rod 46 that can be adjusted in one direction under normal conditions, which is convenient for effective locking during the process of resisting the steel pipe from the outside to avoid easy reversal, resulting in loosening of the locked resistance state. The external penetration component 4 is also provided with a meshing rack 43 and a one-way gear ring 45 that can adjust the return reversal of the deflection resistance rod 46, which are used to cooperate and reset the position of the deflection resistance rod 46 during the adjustment process; The top bracket 6 is fixedly mounted on the top of the support plate 3 and away from the side of the external penetration component 4. The top bracket 6 is in an inverted U shape, and a circular through hole is provided on the side of the top bracket 6 close to the external penetration component 4; The inner penetration component 5 is rotatably arranged at the circular through hole on the inner penetration component 5. The inner penetration component 5 is provided with an internal contact component for contacting the steel pipe from the inside, which is used to contact from the inside of the steel pipe to further lock the position of the steel pipe. The inner penetration component 5 includes a rotating plate 51, which is used to contact the end of the steel pipe during the steel pipe processing to avoid slippage during the inclination adjustment of the steel pipe processing; The power switching assembly 9 is arranged on one side of the rotating plate 51. The power switching assembly 9 includes an external spline shaft sleeve 91 for controlling the rotation of the rotating plate 51 and an internal spline shaft 97 for controlling the adjustment of the internal top contact assembly. The internal spline shaft 97 is located on the inner side of the external spline shaft sleeve 91. A slidable composite spline shaft 94 is provided at the port of the external spline shaft sleeve 91 for switching during actual use, thereby achieving the purpose of controlling the rotation of the rotating plate 51 or the adjustment of the internal top contact assembly, and realizing the switching of the control and adjustment mode. It also includes a drive motor 7 and a pneumatic push rod 8. The drive motor 7 is used to control the rotation of the power switching component 9 to provide power output for the adjustment operation of the inner penetration component 5. The pneumatic push rod 8 is used to control the position switching of the composite spline shaft 94 to achieve the adjustment of the operation steps on the inner penetration component 5.

[0017] Reference Figure 1 and Figure 3-Figure 5 , the axis lines of the outer penetration component 4 and the inner penetration component 5 coincide with each other; The external penetration component 4 includes a penetration tube 41 fixedly installed on the top of the support plate 3 through a support frame, and external interference components are rotatably arranged on both sides of the penetration tube 41, and the external interference component includes a rotating ring 42 rotatably sleeved on the outer side of the penetration tube 41, and six groups of deflection interference rods 46 are rotatably arranged on the inner side of the rotating ring 42 in an array, and the outer side of the penetration tube 41 is provided with a penetration through hole corresponding to the deflection interference rod 46, and a fixed guide rod 47 is fixedly installed at the penetration through hole, and both sides of the deflection interference rod 46 are provided with a slide groove adapted to the fixed guide rod 47 along the length direction, and then when the penetration tube 41 rotates, the deflection interference rod 46 can be deflected under the action of the fixed fixed guide rod 47 and the slide groove, so that the distance between the end of the deflection interference rod 46 and the internal axis line of the penetration tube 41 can be synchronously adjusted, so as to facilitate the interference positioning of the outer side of steel pipes of different specifications; A one-way toothed ring 45 is provided on the outer side of the end of the penetration tube 41, and a spring pull rod 44 is penetrated on the rotating ring 42, and one end of the spring pull rod 44 is connected to an engaging rack 43 adapted to the one-way toothed ring 45. Therefore, during the adjustment process, when the rotating ring 42 is rotated without external interference, only the deflection contact rod 46 can be retracted inward to achieve contact with the surface of the steel pipe. If diameter expansion is required, it is only necessary to control the spring pull rod 44 and the engaging rack 43 to release the meshing relationship between the engaging rack 43 and the one-way toothed ring 45. At this time, the rotating ring 42 can be reversely rotated to achieve the purpose of expanding the deflection contact rod 46 to the outside, and finally achieve the effect of diameter expansion, so that in the actual processing process, the steel pipe can be adaptively clamped from the outside more conveniently.

[0018] Reference Figure 6-Figure 7 The inner side penetration component 5 includes a rotating plate 51 rotatably arranged at a circular through hole on the top bracket 6, and an internal top contact component is provided at the center of the side of the rotating plate 51. The internal top contact component includes an adjusting screw 54 rotatably arranged on the side of the rotating plate 51, and a fixed sleeve 10 covered on the outside of the adjusting screw 54 is also fixedly installed at the center of the side of the rotating plate 51. The fixed sleeve 10 is provided with three groups of penetration holes, and the outer thread sleeve 53 is provided with a threaded sleeve 53. One end of the outer side of the threaded sleeve 53 is connected with a hinged rod penetrated at the penetration hole. The side of the rotating plate 51 is provided with a plurality of guide grooves pointing to the center of the circle, and a directional rod 52 is slidably arranged in the guide groove. The directional rod 52 passes through a through hole on the fixed sleeve 10 and is hinged to the threaded sleeve 53, so that during the rotation of the adjusting screw 54, the threaded sleeve 53 can be horizontally moved in cooperation with the limiting effect of the directional rod 52, which is convenient for subsequent adjustment. The end of the fixed sleeve 10 is fixedly mounted with a sliding shaft rod 56 at the center of the circle, and the outer directional sliding sleeve of the sliding shaft rod 56 is provided with a position-locking sliding shaft sleeve 57, and the outer side of the sliding shaft sleeve 57 is evenly hinged with a linkage rod corresponding to the hinge rod on the threaded sleeve 53, and the corresponding hinge rod and the end of the linkage rod are hinged with the same set of internal abutment strips 55; Therefore, during the movement and adjustment of the threaded sleeve 53, the hinged rod and the linkage rod can be driven to adjust the angle under the action of the sliding sleeve 57 that is locked in position, thereby further realizing the distance adjustment between the internal interference strip 55 and the overall axial center line of the inner penetration component 5, and ultimately achieving the purpose of stable interference from the inside for steel pipes of different diameters.

[0019] Reference Figure 8-Figure 10 The internal spline shaft 97 is coaxially connected to the adjusting screw 54, providing a stable power output basis for the subsequent adjustment of the internal top contact component.

[0020] The power switching assembly 9 includes an external spline sleeve 91, the external spline sleeve 91 is hollow and has a spline groove 1 at the end, the internal spline shaft 97 of the composite spline shaft 94 is coaxially connected to the internal top contact assembly on the rotating plate 51, and a spline groove 2 is provided at the center of the end of the internal spline shaft 97; The composite spline shaft 94 is slidably inserted at the port of the external spline shaft sleeve 91, and the two ends of the composite spline shaft 94 are respectively provided with connecting spline shafts adapted to spline groove one and spline groove two, and the ends of the composite spline shaft 94 are fixedly connected with a power output shaft 92, and the power output shaft 92 is slidably sleeved on the outside of the output shaft of the driving motor 7, and the outer end of the power output shaft 92 is provided with two sets of limit rings, and a sleeve ring 93 is rotatably sleeved between the limit rings, and the sleeve ring 93 is connected to the output shaft of the pneumatic push rod 8 through a connecting rod, and then under the action of the pneumatic push rod 8, the position switching of the composite spline shaft 94 is realized, and the overall rotation of the inner penetration component 5 and the opening and closing control operation of the internal top contact component are switched, so as to achieve the purpose of function switching during the actual operation process.

[0021] A locking toothed ring 98 is provided on the outer side of the internal spline shaft 97, and a telescopic rod 96 is inserted on the inner side of the external spline shaft sleeve 91. A return spring 910 is sleeved on the outer side of the telescopic rod 96. One end of the telescopic rod 96 is connected to a limited position rack 99; A push rod 95 is hinged on one side of the telescopic rod 96, and one end of the push rod 95 is hinged to the composite spline shaft 94, and when the composite spline shaft 94 is meshed with the external spline shaft sleeve 91, the limit rack 99 is meshed with the locking tooth ring 98, and then when the composite spline shaft 94 is pushed subsequently, the push rod 95 is deflected to drive the telescopic rod 96 to retract, and at this time, the meshing relationship between the limit rack 99 and the locking tooth ring 98 is released, so that it is convenient for the composite spline shaft 94 to mesh with the internal spline shaft 97 to drive the internal interference component to adjust, and when the composite spline shaft 94 is meshed with the external spline shaft sleeve 91 to drive the inner penetration component 5 to rotate as a whole, the limit rack 99 is meshed with the locking tooth ring 98 to ensure the locking of the internal interference component and prevent the internal interference component from self-rotating and loosening during the overall rotation of the inner penetration component 5.

[0022] Workflow: First, the steel pipe is transmitted through the external penetration component 4 and sleeved on the outside of the internal penetration component 5, and then the pneumatic push rod 8 is started to make the composite spline shaft 94 advance and engage with the internal spline shaft 97, and the drive motor 7 is started to drive the internal conflict component on the internal penetration component 5 to operate. At this time, the adjusting screw 54 coaxial with the internal spline shaft 97 rotates, thereby driving the threaded sleeve 53 to move, and the hinged rod on the threaded sleeve 53 and the linkage rod on the sliding sleeve 57 to adjust the angle, and drive the internal conflict strip 55 to expand continuously, so as to achieve effective contact from the inner wall of the steel pipe. In this process, the position of the sliding sleeve 57 can also be adjusted to adjust the angle adjustment range of the hinged rod and the linkage rod, so as to better achieve the conflict position adjustment of the internal conflict strip 55, and better achieve the purpose of conflicting steel pipes of different diameters from the inside; Then, by rotating the rotating collar 42, the deflection interference rod 46 is deflected and adjusted under the action of the fixed fixed guide rod 47, so that its end gradually approaches the inner side of the axis of the penetration tube 41, thereby realizing adaptive interference adjustment of the outer side of the steel tube penetrated inside, and when the spring pull rod 44 and the meshing rack 43 are not loosened, this interference process is unidirectional, and the rotation of the rotating collar 42 is unidirectional, which will only make the interference tighter and will not cause loosening, thereby realizing the stability of the steel tube during processing. If adjustment is required, it is only necessary to pull the spring pull rod 44 to release the meshing relationship between the meshing rack 43 and the one-way gear ring 45, so that the reverse rotation of the rotating collar 42 can be realized to achieve the purpose of loosening adjustment; The inner side penetration component 5 cooperates with the power switching component 9 to achieve the purpose of contacting the inner side and the outer side of the steel pipe, thereby avoiding the phenomenon of the axis centerline deviation of the steel pipe during the processing and ensuring the processing accuracy; Then, when the steel pipe is rotated for processing, the pneumatic push rod 8 is started to realize the return of the composite spline shaft 94 and the engagement with the external spline sleeve 91. At this time, under the action of the push rod 95 and the linked telescopic rod 96, the engagement of the limit rack 99 and the locking gear ring 98 is realized to ensure that the angle of the internal interference component is locked to avoid loosening during use. At this time, the composite spline shaft 94 is engaged with the external spline sleeve 91, and the inner penetration component 5 and the steel pipe that interferes from the inside are driven to rotate under the action of the drive motor 7. When the overall support plate 3 and the upper external penetration component 4 and the inner penetration component 5 drive the steel pipe to adjust the angle as needed under the action of the push rod motor 2, under the action of the rotating plate 51, the end of the steel pipe is interfered to avoid slippage, thereby ensuring the stable progress of the processing process.

[0023] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0024] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A clamping device used for seamless metal steel pipe processing, characterized in that: include: The L-shaped bracket (1) is L-shaped, and a plurality of push rod motors (2) are provided at the top of the horizontal arm of the L-shaped bracket (1), and the top of the output shaft of the push rod motor (2) is connected to a push rod; A support plate (3) is rotatably arranged on the top of the vertical support arm of the L-shaped bracket (1), and the bottom end of the support plate (3) is in contact with the top rod of the push rod motor (2); An external threading component (4) is fixedly mounted on one side of the top end of the support plate (3), and a deflection contact rod (46) that can be adjusted in one direction under normal conditions is provided on the external threading component (4), and an engaging rack (43) and a one-way gear ring (45) that can adjust the deflection contact rod (46) to return and reverse. A top bracket (6) is fixedly mounted on a side of the top of the support plate (3) away from the external penetration component (4), the top bracket (6) is in an inverted U shape, and a circular through hole is provided on a side of the top bracket (6) close to the external penetration component (4); An inner penetration component (5) is rotatably arranged at a circular through hole on the inner penetration component (5), and an internal contact component is provided on the inner penetration component (5) for contacting the steel pipe from the inside. The inner penetration component (5) includes a rotating plate (51) for contacting the end of the steel pipe during the steel pipe processing to prevent slippage during the steel pipe processing tilt adjustment process; A power switching assembly (9) is arranged on one side of the rotating plate (51), the power switching assembly (9) comprising an external spline shaft sleeve (91) for controlling the rotation of the rotating plate (51) and an internal spline shaft (97) for controlling the adjustment of the internal contact assembly, wherein the internal spline shaft (97) is located on the inner side of the external spline shaft sleeve (91), and a slidable composite spline shaft (94) is provided at the end of the external spline shaft sleeve (91); It also includes a driving motor (7) and a pneumatic push rod (8), wherein the driving motor (7) is used to control the rotation of the power switching component (9), and the pneumatic push rod (8) is used to control the position switching of the composite spline shaft (94).

2. The clamping device for seamless metal steel pipe processing according to claim 1 is characterized in that: The axis lines of the outer penetration component (4) and the inner penetration component (5) coincide with each other; The external penetration component (4) comprises a penetration tube (41) fixedly mounted on the top of the support plate (3) through a support frame, and external resistance components are rotatably arranged on both sides of the penetration tube (41), and the external resistance component comprises a rotating ring (42) rotatably sleeved on the outside of the penetration tube (41), and six groups of deflection resistance rods (46) are rotatably arranged in an array on the inner side of the rotating ring (42), and the outer side of the penetration tube (41) is provided with a penetration through hole corresponding to the deflection resistance rod (46), and a fixed guide rod (47) is fixedly mounted at the penetration through hole, and both sides of the deflection resistance rod (46) are provided with a slide groove adapted to the fixed guide rod (47) along the length direction; A one-way toothed ring (45) is provided on the outer side of the end of the penetration tube (41), and a spring pull rod (44) is passed through the rotating collar (42). One end of the spring pull rod (44) is connected to a meshing rack (43) adapted to the one-way toothed ring (45). Therefore, during the adjustment process, when the rotating collar (42) is rotated without external interference, only the deflection contact rod (46) can be retracted inwardly to achieve contact with the surface of the steel pipe. If the diameter needs to be expanded, it is only necessary to control the spring pull rod (44) and the meshing rack (43) to release the meshing relationship between the meshing rack (43) and the one-way toothed ring (45). At this time, the rotating collar (42) can be reversely rotated to achieve the purpose of expanding the deflection contact rod (46) outward.

3. The clamping device for seamless metal steel pipe processing according to claim 1 is characterized in that: The inner side penetration component (5) comprises a rotating plate (51) rotatably arranged at a circular through hole on the top bracket (6), an inner top contact component is provided on the side of the rotating plate (51) at the center of the circle, the inner top contact component comprises an adjusting screw (54) rotatably arranged on the side of the rotating plate (51), and a fixed sleeve (10) is fixedly installed on the side of the rotating plate (51) at the center of the circle and is covered on the outside of the adjusting screw (54), three groups of penetration holes are provided on the fixed sleeve (10), the outer side of the adjusting screw (54) is threadedly sleeved with a threaded sleeve (53), and one end of the outer side of the threaded sleeve (53) is connected to a hinged rod that is penetrated through the penetration hole; The side surface of the rotating plate (51) is provided with a plurality of guide grooves pointing to the center of the circle, and a directional rod (52) is slidably arranged in the guide groove, and the directional rod (52) passes through a through hole provided in the fixed sleeve (10) and is hingedly connected to the threaded sleeve (53); A sliding shaft rod (56) is fixedly mounted at the center of the fixed sleeve (10), and a sliding shaft sleeve (57) capable of being locked in position is provided on the outer directional sliding sleeve of the sliding shaft rod (56). Linkage rods corresponding to the hinged rods on the threaded sleeve (53) are evenly hinged on the outer side of the sliding shaft sleeve (57), and the corresponding hinged rods and the ends of the linkage rods are hinged with the same set of internal abutment strips (55); Therefore, during the movement and adjustment of the threaded sleeve (53), the hinged rod and the linkage rod can be driven to adjust the opening angle under the action of the position-locked sliding sleeve (57), thereby further achieving the distance adjustment between the internal interference strip (55) and the overall axis of the inner penetration component (5).

4. The clamping device for seamless metal steel pipe processing according to claim 3 is characterized in that: The internal spline shaft (97) is coaxially connected to the adjusting screw (54).

5. The clamping device for seamless metal steel pipe processing according to claim 1, characterized in that: The power switching assembly (9) comprises an external spline shaft sleeve (91), the external spline shaft sleeve (91) is hollow and has a first spline groove at the end thereof; an internal spline shaft (97) of the composite spline shaft (94) is coaxially connected to an internal top contact assembly on the rotating plate (51), and a second spline groove is provided at the center of the end of the internal spline shaft (97); A composite spline shaft (94) is slidably inserted at the port of the external spline shaft sleeve (91), and connecting spline shafts matching the first spline groove and the second spline groove are respectively provided at both ends of the composite spline shaft (94), and a power output shaft (92) is fixedly connected to the end of the composite spline shaft (94), and the power output shaft (92) is slidably sleeved on the outside of the output shaft of the drive motor (7), and two sets of limit rings are provided at the outer end of the power output shaft (92), and a sleeve ring (93) is rotatably sleeved between the limit rings, and the sleeve ring (93) is connected to the output shaft of the pneumatic push rod (8) through a connecting rod.

6. The clamping device for seamless metal steel pipe processing according to claim 5, characterized in that: A locking toothed ring (98) is provided on the outer side of the internal spline shaft (97), and a telescopic rod (96) is inserted on the inner side of the external spline shaft sleeve (91), and a return spring (910) is sleeved on the outer side of the telescopic rod (96). One end of the telescopic rod (96) is connected to a limit rack (99); A push rod (95) is hingedly connected to one side of the telescopic rod (96), and one end of the push rod (95) is hingedly connected to the composite spline shaft (94). When the composite spline shaft (94) is meshed with the external spline shaft sleeve (91), the limit rack (99) is meshed with the locking toothed ring (98). When the composite spline shaft (94) is subsequently pushed, the push rod (95) is deflected to drive the telescopic rod (96) to retract. At this time, the limit rack (99) and the locking toothed ring (98) are engaged. The meshing relationship is released, which facilitates the meshing of the composite spline shaft (94) and the internal spline shaft (97) to drive the internal interference component to adjust. When the composite spline shaft (94) and the external spline shaft sleeve (91) are meshed to drive the inner penetration component (5) to rotate as a whole, the limit rack (99) and the locking toothed ring (98) are meshed to ensure that the internal interference component is locked, thereby preventing the internal interference component from self-rotating and loosening during the overall rotation of the inner penetration component (5).

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