Self-locking jacking device for seamless steel pipe machining
Through the design of the self-locking pinching device, the driving mechanism is used to move the pinching parts along the axial direction of the body, which solves the problem of unstable clamping in seamless steel pipe processing, and realizes the stable connection and efficient processing of steel pipes, which are suitable for a variety of Specification of steel pipes reduces workmanship costs.
Patent Information
- Application Number
- CN202323667299.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-29
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2033-12-29
AI Technical Summary
During the processing of seamless steel pipes, due to the unrounding and bending of the inner and outer surfaces of the steel pipe billet, it is difficult for traditional pinching devices to ensure the stability and processing efficiency of steel pipes, especially when processing steel pipes with large weight and diameter specifications. It is more obvious, and the unbalance on the surface of the workpiece causes vibration, resulting in the gaskets being easily shed, low processing efficiency and difficult to ensure quality.
The self-locking pinching device is adopted, which includes a conical body, a semi-conical pinching member and a driving mechanism. The pinching member is moved horizontally along the axial direction of the body through the driving mechanism, and the side is tightened to the inner hole of the steel pipe to ensure a stable connection. Suitable for processing steel pipes with various specifications and inner diameters, saving workmanship costs.
It realizes the rapid and accurate installation and locking of seamless steel pipes, avoids vibration and fall off, ensures processing quality and efficiency, and is suitable for steel pipe processing of various specifications, reducing workmanship costs.
Smart Images
Figure CN222327376U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of seamless steel pipe processing, for example, to a self-locking tightening device for seamless steel pipe processing. Background Art
[0002] At present, my country's seamless steel pipes are widely used in high temperature and high pressure working environments such as thermal power units and petrochemicals, and strict requirements are placed on the surface quality of the steel pipes.
[0003] To meet the surface quality requirements of seamless steel pipes, the stability of seamless steel pipe clamping is crucial in the machining process. However, when seamless steel pipes are machined and clamped, the non-roundness and curvature of the inner and outer surfaces of the seamless steel pipe blank make the clamping unstable due to the small contact area between the top cone and the hole during the processing, clamping and tightening process. The traditional steel pad to tighten the top cone to improve the stability of the clamping is even less effective for steel pipes with large weight, large diameter and thin wall thickness. In particular, the processing vibration caused by the uneven surface of the workpiece makes it easy for the gasket to fall off, and repeated clamping is required. The workpiece clamping is time-consuming, resulting in low processing efficiency and difficulty in ensuring the processing quality of the steel pipe.
[0004] Therefore, how to accurately, quickly and stably clamp and lock the seamless steel pipe, improve processing efficiency, and save tooling costs has become a technical problem that needs to be urgently solved by technical personnel in this field.
[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content
[0006] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.
[0007] The disclosed embodiment provides a self-locking tightening device for seamless steel pipe processing, which can quickly and accurately complete the clamping and locking of the seamless steel pipe, and at the same time fix the seamless steel pipe more firmly, so that the seamless steel pipe will not vibrate and fall off during the processing, which helps to continuously and stably process the seamless steel pipe, ensure the processing quality, improve the processing efficiency, and is suitable for fixing and processing seamless steel pipes with a variety of different specifications of inner diameters, saving tooling costs.
[0008] In some embodiments, a self-locking tightening device for seamless steel pipe processing includes: a body, a tightening member, and a driving mechanism. The body is a conical cylindrical structure; the tightening member is a semi-conical structure, there are multiple tightening members, and the multiple tightening members are evenly arranged along the outer circumferential direction of the body; the driving mechanism is arranged on the body and connected to the tightening member. When the seamless steel pipe is processed, the driving mechanism is used to drive the tightening member to move back and forth horizontally along the axial direction of the body, so that the side of the tightening member is tightened to the edge of the mouth of one end of the inner hole of the seamless steel pipe, wherein there are multiple driving mechanisms, each of which corresponds to a tightening member.
[0009] Optionally, the conical surface of the pressing member is higher than or equal to the conical surface of the body.
[0010] Optionally, the taper of the main body and the pressing member is the same.
[0011] Optionally, a plurality of assembly grooves are evenly formed in the outer circumferential direction of the main body, and each of the pressing members is slidably disposed in a corresponding assembly groove.
[0012] Optionally, the assembly groove is in an L-shaped structure, and its opening direction is located at the end of the body with a smaller diameter.
[0013] Optionally, the driving mechanism includes: a lead screw and a movable thread sleeve. The lead screw is arranged between the jacking member and the body, and one end of the lead screw protrudes from the end of the body with a larger diameter; the movable thread sleeve is sleeved on the lead screw and threadedly connected to the lead screw, wherein the jacking member is fixedly connected to the movable thread sleeve.
[0014] Optionally, the driving mechanism further comprises: a fastener. The fastening member and the movable thread sleeve are connected via the fastener.
[0015] Optionally, the self-locking and tightening device for seamless steel pipe processing further comprises: a weight-reducing through hole. The weight-reducing through hole is provided on the body and passes through the body, wherein the axial direction of the weight-reducing through hole is parallel to the axial direction of the body.
[0016] Optionally, the self-locking and tightening device for seamless steel pipe processing further comprises: a machine tool tailstock. The machine tool tailstock is arranged on one side of the body and connected to an end of the body with a larger diameter.
[0017] Optionally, the tailstock of the machine tool is movably connected to the main body.
[0018] The self-locking and tightening device for seamless steel pipe processing provided by the embodiment of the present disclosure can achieve the following technical effects:
[0019] When processing the seamless steel pipe, align one end of the seamless steel pipe with the end of the body with a smaller diameter, and then use the driving mechanism to drive the clamping piece to move horizontally along the axial direction of the body toward the position of the seamless steel pipe, so that the side of the clamping piece is pressed against the edge of the inner hole of the seamless steel pipe. The seamless steel pipe can be quickly and accurately clamped and locked. At the same time, the seamless steel pipe is more firmly fixed, so that the seamless steel pipe will not vibrate and fall off during the processing. It is helpful to continuously and stably process the seamless steel pipe, ensure the processing quality, improve the processing efficiency, and is suitable for fixed processing of seamless steel pipes with a variety of different specifications of inner diameters, saving tooling costs.
[0020] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:
[0022] Figure 1 It is a structural schematic diagram of a self-locking jacking device for seamless steel pipe processing provided by an embodiment of the present disclosure;
[0023] Figure 2 is a schematic structural diagram of a tightening member provided in an embodiment of the present disclosure;
[0024] Figure 3 is a schematic diagram of the structure of the assembly groove provided in an embodiment of the present disclosure;
[0025] Figure 4 is a schematic diagram of the structure of a driving mechanism provided by an embodiment of the present disclosure;
[0026] Figure 5 It is a schematic structural diagram of another self-locking tightening device for seamless steel pipe processing provided by an embodiment of the present disclosure.
[0027] Reference numerals:
[0028] 100, body; 101, assembly groove; 102, weight-reducing through hole; 103, circular step hole; 200, fastening member; 201, notch groove; 300, driving mechanism; 301, lead screw; 302, movable thread sleeve; 303, fastener; 400, machine tailstock; 500, telescopic rod. DETAILED DESCRIPTION
[0029] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.
[0030] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.
[0031] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.
[0032] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.
[0033] Unless otherwise stated, the term "plurality" means two or more.
[0034] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.
[0035] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.
[0036] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.
[0037] Combination Figure 1-2 As shown, the embodiment of the present disclosure provides a self-locking tightening device for seamless steel pipe processing, including: a main body 100, a tightening member 200 and a driving mechanism 300. The main body 100 is a conical cylindrical structure; the tightening member 200 is a semi-conical structure, and there are multiple tightening members 200, and the multiple tightening members 200 are evenly arranged along the outer circumferential direction of the main body 100; the driving mechanism 300 is arranged on the main body 100 and connected to the tightening member 200. When the seamless steel pipe is processed, the driving mechanism 300 is used to drive the tightening member 200 to reciprocate horizontally along the axial direction of the main body 100, so that the side of the tightening member 200 is tightened to the edge of one end of the inner hole of the seamless steel pipe, wherein there are multiple driving mechanisms 300, and each driving mechanism 300 corresponds to a tightening member 200.
[0038] By using the self-locking tightening device for seamless steel pipe processing provided by the embodiment of the present disclosure, when processing the seamless steel pipe, one end of the seamless steel pipe is aligned with the end of the body 100 with a smaller diameter, and then the driving mechanism 300 is used to drive the tightening member 200 to move horizontally along the axial direction of the body 100 toward the position of the seamless steel pipe, so that the side of the tightening member 200 is tightened against the edge of the inner hole of one end of the seamless steel pipe, so that the clamping and locking of the seamless steel pipe can be completed quickly and accurately, and at the same time, the seamless steel pipe can be fixed more firmly, so that the seamless steel pipe will not vibrate and fall off during the processing, which helps to continuously and stably process the seamless steel pipe, ensure the processing quality, improve the processing efficiency, and is suitable for fixed processing of seamless steel pipes with a variety of different specifications of inner diameters, saving tooling costs.
[0039] Optionally, the drive mechanism 300 is disposed at the end with a larger diameter of the body 100. In this way, the assembly position of the drive mechanism 300 is more structurally reasonable, and it is convenient to operate the drive mechanism 300 to control the movement of the pressing member 200, thereby improving the convenience of operation and enhancing the user experience.
[0040] Optionally, a jacking member 200 is assembled at a set angle along the circumferential direction of the body 100, wherein the set angle is greater than or equal to 45 degrees and less than or equal to 90 degrees. In this way, the set angle is within a reasonable range, so that the number of jacking members 200 assembled can be rationalized, and the jacking members 200 at different positions can be used to better fix the seamless steel pipe in all directions, avoiding the situation where the subsequent processing is affected by the loose fixation.
[0041] Optionally, the conical surface of the jacking member 200 is higher than or equal to the conical surface of the body 100. In this way, the assembly of the jacking member 200 on the body 100 is more reasonable, ensuring that the jacking member 200 can smoothly clamp and lock the seamless steel pipe, and expanding the applicable scope of the jacking member 200, so that it can be used to fix seamless steel pipes with different apertures.
[0042] It can be understood that the conical surface of the pressing member 200 is higher than the conical surface of the body 100, which means that the conical surface of the pressing member 200 protrudes from the conical surface of the body 100, and the conical surface of the pressing member 200 is equal to the conical surface of the body 100, which means that the two are on the same inclined surface.
[0043] Optionally, the taper of the body 100 is the same as that of the jacking member 200. In this way, the assembly of the jacking member 200 on the body 100 can be more coordinated, thereby ensuring the neatness of the overall structure of the self-locking jacking device, facilitating more neat fixing of the seamless steel pipe and improving the clamping effect of the seamless steel pipe.
[0044] Optionally, the taper of the body 100 and the top member 200 is greater than or equal to 50 degrees and less than or equal to 70 degrees. In this way, the tapers of the body 100 and the top member 200 are both within a reasonable range, and the top member 200 is suitable for fixing and processing seamless steel pipes of various inner diameters while ensuring assembly coordination, thereby saving tooling costs.
[0045] like Figure 3 As shown, optionally, a plurality of assembly grooves 101 are evenly provided in the outer circumferential direction of the body 100, and each of the jacking members 200 is slidably disposed in a corresponding assembly groove 101. In this way, a more reasonable assembly position can be provided for the jacking members 200 assembled on the body 100, and after installation, the jacking members 200 can stably and smoothly move horizontally in the assembly groove 101, which helps to quickly and accurately complete the clamping and locking of the seamless steel pipe, and ensures the stability of the clamping and locking.
[0046] Optionally, the assembly groove 101 is L-shaped, and its open direction is located at the end with a smaller diameter of the body 100. In this way, the structure of the assembly groove 101 is rationalized, and the end surface with a larger diameter of the body 100 can be used as a blocking structure, which can effectively prevent the clamping efficiency from being affected by the movement of the top member 200 in the reverse direction during use, and when fixing the seamless steel pipe, the top member 200 can smoothly move to the end with a smaller diameter and move out of the assembly groove 101, so that the side surface of the top member 200 is pressed against the edge of the mouth of one end of the inner hole of the seamless steel pipe.
[0047] Optionally, the length of the pressing member 200 moving out of the assembly groove 101 is determined by the diameter of the inner hole of the seamless steel pipe. In this way, by controlling the length of the pressing member 200 moving out of the assembly groove 101, the pressing member 200 can always abut against the edge of the inner hole of the seamless steel pipe, and is suitable for fixing and processing seamless steel pipes of various inner diameters, saving tooling costs.
[0048] like Figure 4 As shown, optionally, the driving mechanism 300 includes: a lead screw 301 and a movable wire sleeve 302. The lead screw 301 is arranged between the jacking member 200 and the body 100, and one end protrudes from the end of the body 100 with a larger diameter; the movable wire sleeve 302 is sleeved on the lead screw 301 and is threadedly connected to the lead screw 301, wherein the jacking member 200 is fixedly connected to the movable wire sleeve 302. In this way, by rotating the lead screw 301, the movable wire sleeve 302 can drive the jacking member 200 connected thereto to move, which helps to quickly and accurately complete the clamping and locking of the seamless steel pipe, and the position of the movable wire sleeve 302 can be locked after the movement, and the movable wire sleeve 302 will not move again, so that the jacking member 200 can be stably pressed against the edge of one end of the inner hole of the seamless steel pipe, which can effectively ensure the stability of the processing process and the processing quality of the seamless steel pipe.
[0049] Optionally, the matching clearance between the lead screw 301 and the movable silk sleeve 302 is greater than or equal to -0.02mm, and less than or equal to 0mm. Like this, the matching clearance between the lead screw 301 and the movable silk sleeve 302 is in a reasonable range, and when the lead screw 301 is rotated, the movable silk sleeve 302 can be stably and quickly moved.
[0050] Optionally, the driving mechanism 300 further includes a fastener 303. The jacking member 200 is connected to the movable silk sleeve 302 via the fastener 303. Thus, by arranging the fastener 303 between the jacking member 200 and the movable silk sleeve 302 and fixing the jacking member 200 with the fastener 303, the jacking member 200 can be made more stable, thereby ensuring the stability of the jacking member 200 during movement.
[0051] Optionally, the fastener 303 is a rivet, which is known in the prior art, and its specific structure and connection form are not described in detail here.
[0052] like Figure 5As shown, optionally, a circular stepped hole 103 is provided on the bottom surface of the assembly groove 101, and the circular stepped hole 103 is close to the side with a larger diameter of the body 100 and penetrates the side wall of the side with a larger diameter of the body 100, and the lead screw 301 is arranged in the circular stepped hole 103, and one end protrudes from one side of the end with a larger diameter of the body 100, and the movable wire sleeve 302 on the lead screw 301 is fixedly connected to the bottom of the pressing member 200 by a rivet. In this way, by arranging the lead screw 301 in the circular stepped hole 103 and making one end protrude from the body 100, the circular stepped hole 103 is convenient for operation and ensures that the lead screw 301 will not move in the axial direction.
[0053] Optionally, a notch groove 201 is provided at the bottom of the pressing member 200, and the part of the movable wire sleeve 302 is located in the notch groove 201, and the part located in the notch groove 201 is fixedly connected to the bottom of the pressing member 200. In this way, it is convenient to install the movable wire sleeve 302, and it is ensured that the lead screw 301 and the movable wire sleeve 302 do not contact the body 100 during the rotational engagement process, and the stability and smoothness of the moving process of the movable wire sleeve 302 are ensured, and the wear of the movable wire sleeve 302 can also be avoided, and the protection of the movable wire sleeve 302 is enhanced.
[0054] Optionally, the self-locking and tightening device for seamless steel pipe processing further includes: a weight-reducing through hole 102. The weight-reducing through hole 102 is provided on the body 100 and passes through the body 100, wherein the axial direction of the weight-reducing through hole 102 is parallel to the axial direction of the body 100. Thus, by providing the weight-reducing through hole 102 on the body 100, the weight of the body 100 can be effectively reduced, making it easier to carry, store, install and use.
[0055] Optionally, there are multiple weight-reducing through holes 102, and each weight-reducing through hole 102 includes large hole ends located on two opposite sides of the body 100 and a small hole portion connected between the large hole ends. In this way, the structural forms of the weight-reducing through holes 102 are diversified, and the weight can be reduced to the greatest extent.
[0056] Optionally, the weight-reducing through hole 102 can be used as a hoisting hole. In this way, the weight-reducing through hole 102 is helpful for auxiliary hoisting tools to install the body 100, reducing the difficulty of the installation process, improving the convenience of installation, and being suitable for hoisting with a variety of assembly tools to ensure the stability and effect of hoisting.
[0057] Optionally, the self-locking and tightening device for seamless steel pipe processing further includes: a machine tailstock 400. The machine tailstock 400 is disposed on one side of the body 100 and connected to the end of the body 100 with a larger diameter. In this way, the body 100 can be installed and fixed by using the machine tailstock 400, making the body 100 more stable, so as to better fix the seamless steel pipe and ensure the stability of the clamping and locking of the seamless steel pipe.
[0058] Optionally, the machine tool tailstock 400 is movably connected to the body 100. In this way, the connection between the machine tool tailstock 400 and the body 100 is more flexible, which is convenient for adjusting the position of the body 100 so as to flexibly cope with changes in the processing scene.
[0059] Optionally, the body 100 is connected to the machine tool tailstock 400 via a telescopic rod 500. In this way, the method of adjusting the position of the body 100 is simplified, the cost is reduced, and the convenience of operation is improved.
[0060] Optionally, an assembly hole is provided along the axis of the body 100, one end of the telescopic rod 500 is located in the assembly hole, and the other end is detachably connected to the machine tool tailstock 400. In this way, the machine tool tailstock 400 can fix the middle part of the body 100, which can make the fixation of the body 100 more stable, avoid the situation where the body 100 tilts and affects the processing, and ensure the stability of the body 100.
[0061] It can be understood that the telescopic rod 500 is an electric push rod, and the detachable connection between the telescopic rod 500 and the tailstock 400 of the machine tool is a screw connection or a snap-fit connection, wherein the electric push rod, screw connection and snap-fit connection are all existing technologies and will not be repeated here.
[0062] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims
1. A self-locking tightening device for seamless steel pipe processing, characterized in that: include: The body (100) is a conical cylindrical structure; The tightening member (200) is a semi-conical structure, and there are a plurality of tightening members (200), and the plurality of tightening members (200) are evenly arranged along the outer circumferential direction of the body (100); The driving mechanism (300) is arranged on the main body (100) and connected to the pressing member (200). When the seamless steel pipe is being processed, the driving mechanism (300) is used to drive the pressing member (200) to move back and forth horizontally along the axial direction of the main body (100), so that the side surface of the pressing member (200) is pressed against the edge of one end of the inner hole of the seamless steel pipe. There are multiple driving mechanisms (300), and each driving mechanism (300) corresponds to a pressing member (200).
2. The self-locking jacking device for seamless steel pipe processing according to claim 1 is characterized in that: The conical surface of the pressing member (200) is higher than or equal to the conical surface of the body (100).
3. The self-locking jacking device for seamless steel pipe processing according to claim 1 is characterized in that: The taper of the main body (100) and the pressing member (200) is the same.
4. The self-locking jacking device for seamless steel pipe processing according to claim 1, characterized in that: A plurality of assembly grooves (101) are evenly arranged in the outer circumferential direction of the main body (100), and each of the pressing members (200) is slidably arranged in a corresponding assembly groove (101).
5. The self-locking jacking device for seamless steel pipe processing according to claim 4, characterized in that: The assembly groove (101) is in an L-shaped structure, and its opening direction is located at the end of the body (100) with a smaller diameter.
6. The self-locking jacking device for seamless steel pipe processing according to claim 1, characterized in that: The driving mechanism (300) comprises: A lead screw (301) is disposed between the tightening member (200) and the body (100), and one end of the lead screw protrudes from an end of the body (100) with a larger diameter; The movable thread sleeve (302) is sleeved on the lead screw (301) and threadedly connected to the lead screw (301), wherein the pressing member (200) is fixedly connected to the movable thread sleeve (302).
7. The self-locking jacking device for seamless steel pipe processing according to claim 6, characterized in that: The driving mechanism (300) further comprises: The fastening member (303) is connected to the pressing member (200) and the movable thread sleeve (302) via the fastening member (303).
8. The self-locking jacking device for seamless steel pipe processing according to any one of claims 1 to 7, characterized in that: Also includes: The weight-reducing through hole (102) is formed on the main body (100) and passes through the main body (100), wherein the axial direction of the weight-reducing through hole (102) is parallel to the axial direction of the main body (100).
9. The self-locking jacking device for seamless steel pipe processing according to any one of claims 1 to 7, characterized in that: Also includes: The machine tool tailstock (400) is arranged on one side of the main body (100) and is connected to an end of the main body (100) with a larger diameter.
10. The self-locking jacking device for seamless steel pipe processing according to claim 9, characterized in that: The machine tool tailstock (400) is movably connected to the main body (100).