Integral elastic centralizer bow piece forming device

Abstract

The application provides a whole elastic centralizer bow piece forming device, which comprises a base, a forming mechanism arranged on the base, the forming mechanism comprising a first body concentrically arranged in the base, a second body arranged above the first body, a sliding block arranged between the first body and the second body, and an elastic centralizer sleeved outside the forming mechanism and abutting against the sliding block, wherein the second body is configured to move downward under external force, so that the sliding block moves radially outward to deform the ribs of the elastic centralizer.

Description

Technical Field

[0001] This invention relates to the field of oil well tool processing and manufacturing, and specifically to an integral elastic centralizer bow plate forming device. Background Technology

[0002] Currently, the forming of integral flexible centralizer bow segments mainly relies on press equipment. Before forming, an upper and lower mold needs to be designed based on the drawings of one specification of integral flexible centralizer. The upper mold is mounted on the press spindle, and the lower mold is mounted on the press platform. During forming, the worker holds the centralizer horizontally and places the bow segment between the upper and lower molds. The bow segment is formed by the downward force applied to it by the upper mold.

[0003] However, this method can only form one bow piece at a time, and the operation can only be completed when the material is annealed and cooled, resulting in low processing efficiency. Since the bow pieces are pressed one by one rather than formed simultaneously, the quality of the product is difficult to guarantee due to human factors.

[0004] Therefore, it is desirable in the art to provide an integral elastic centralizer bow plate forming device to solve the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this invention is to provide an integral elastic stabilizer bow plate forming device, which can be directly pressed and formed after annealing, thereby effectively reducing processing steps and shortening processing time.

[0006] According to the present invention, an integral elastic centralizer bow plate forming device is provided, including a base,

[0007] A molding mechanism is disposed on the base, the molding mechanism comprising a first body concentrically arranged within the base, a second body disposed above the first body, and a slider disposed between the first body and the second body.

[0008] An elastic stabilizer is fitted outside the forming mechanism and abuts against the slider.

[0009] The second body is configured to move downward under the action of an external force, thereby causing the slider to move radially outward and deform the ribs of the elastic stabilizer.

[0010] In one embodiment, a plurality of sliders are arranged circumferentially along the first body and the second body.

[0011] In one embodiment, the slider is radially aligned with the rib.

[0012] In one embodiment, the slider is configured as a fan-shaped structure, and both the first body and the second body have conical structures arranged corresponding to the slider at their ends.

[0013] In one embodiment, protrusions are provided at both ends of the slider, and grooves for matching the protrusions are provided at the junctions of the first body, the second body, and the slider.

[0014] In one embodiment, the molding mechanism further includes a guide rod concentrically arranged within the first body, the first end of the guide rod being fixedly connected to the second body, and the second end of the guide rod having a gap with the base in the initial state.

[0015] In one embodiment, a limiting step extending radially outward is formed on the inner wall of the first body, and the forming mechanism further includes a spring sleeved on the guide rod and abutting against the limiting step.

[0016] In one embodiment, the resilient straightener includes a first clamp disposed below the rib.

[0017] The forming mechanism further includes a first positioning slider fixed to the first body by a limiting member, and the first positioning slider abuts against the first coupling.

[0018] In one embodiment, the resilient straightener includes a second clamp disposed above the rib.

[0019] The second body is provided with a plurality of first guide rails arranged longitudinally, and the forming mechanism further includes a second positioning slider that is fixed on the first guide rails by a limiting member and abuts against the second coupling.

[0020] In one embodiment, the integral elastic centralizer bow plate forming device further includes a lifting platform disposed between the base and the second positioning slider, wherein the first body and the lifting platform are threadedly connected.

[0021] Compared with the prior art, the advantages of the present invention are as follows:

[0022] Firstly, this invention allows for direct pressing and molding after annealing, eliminating the need to wait for the workpiece to cool compared to traditional bow-plate forming processes. This effectively reduces processing steps and shortens processing time. Furthermore, this device enables one-time molding, ensuring all ribs move simultaneously outwards, guaranteeing a symmetrical structure after elastic straightening and further improving the yield rate.

[0023] Secondly, this invention eliminates the drawback of traditional integral elastic centralizers where the bow plates need to be manually pressed sequentially. Instead, it uses a press to provide downward pressure, allowing all the ribs on the elastic centralizer to be pressed and formed in one go, thus improving processing efficiency. Furthermore, the automated operation not only improves processing quality but also effectively avoids safety accidents caused by manual operation during traditional bow plate pressing, thus offering higher safety performance. Attached Figure Description

[0024] The invention will now be described in detail with reference to the accompanying drawings, in which:

[0025] Figure 1 The schematic diagram illustrates the structure of the integral elastic centralizer bow plate forming device according to the present invention;

[0026] Figure 2 This is an internal sectional view of the integral elastic centralizer bow plate forming device according to the present invention;

[0027] Figure 3 The schematic diagram illustrates the structure of the first body in the integral elastic centralizer bow plate forming device according to the present invention;

[0028] Figure 3a for Figure 3 Internal sectional view;

[0029] Figure 4 The schematic diagram illustrates the structure of the second body in the integral elastic centralizer bow plate forming device according to the present invention;

[0030] Figure 4a for Figure 4 Internal sectional view;

[0031] Figure 5 for Figure 1 The partial view in the image schematically illustrates the structure of the slider;

[0032] Figure 6 for Figure 1 The partial view in the image schematically shows the structure of the lifting platform;

[0033] Figure 7 for Figure 1 A partial view in the image schematically shows the structure of the base;

[0034] Figure 8 for Figure 1 The partial view in the diagram schematically shows the structure of the guide rod;

[0035] Figure 9 for Figure 1 The partial view in the image schematically illustrates the structure of the positioning slider;

[0036] Figure 10 The schematic diagram illustrates the unshaped structure of the elastic stabilizer in the integral elastic stabilizer bow plate forming apparatus according to the present invention;

[0037] Figure 11 The schematic diagram illustrates the structure of the elastic centralizer after shaping in the integral elastic centralizer bow plate forming apparatus according to the present invention.

[0038] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not drawn to scale. Detailed Implementation

[0039] To make the technical solutions and advantages of the present invention clearer, exemplary embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not an exhaustive list of all embodiments. Furthermore, without conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0040] In the description of this invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0041] In this invention, unless otherwise explicitly specified and limited, the terms “installation,” “connection,” “linking,” “fixing,” etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components.

[0042] Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0043] The invention will now be further described with reference to the accompanying drawings.

[0044] Figure 1 The schematic diagram shows the structure of the integral elastic centralizer bow plate forming device 100 according to the present invention.

[0045] Figure 2 This is an internal cross-sectional view of the integral elastic centralizer bow plate forming device 100 according to the present invention.

[0046] like Figures 1-2As shown in Figures 5 and 7, the integral elastic centralizer bow plate forming device 100 according to the present invention mainly includes a base 10 and a forming mechanism disposed on the base 10. Preferably, the forming mechanism includes a first body 21 concentrically arranged within the base 10, a second body 22 disposed above the first body 21, and a slider 23 disposed between the first body 21 and the second body 22.

[0047] In one embodiment of the present invention, such as Figures 1-2 As shown, the integral elastic stabilizer bow plate forming device 100 also includes an elastic stabilizer 30. Preferably, the first body 21 can be partially embedded in the base 10, and the elastic stabilizer 30 can be sleeved on the outside of the first body 21 and the second body 22. At the same time, the elastic stabilizer 30 and the slider 23 radially abut against each other to facilitate the subsequent bow plate forming work.

[0048] In this invention, the second body 22 is connected to a press, and the second body 22 can move downward under the pushing action of the press, thereby causing the slider 23 to move radially outward under the cooperation of the first body 21, so that the bow plate 33 moves outward in all directions, thereby causing the ribs 33 of the elastic stabilizer 30 to move as follows. Figures 10-11 The molding effect shown.

[0049] Preferably, the base 10 has a cylindrical structure, and a disc is provided below the cylindrical structure to increase the overall stability of the base 10. Furthermore, multiple bolt holes are evenly distributed circumferentially on the disc, so that the base 10 can be fixedly connected to the ground through the engagement of bolts and bolt holes, thereby preventing tipping during the pressing and forming process of the bow pieces. It is worth noting that an internal trapezoidal thread is machined on the inner side of the base 10 to facilitate connection with the first body 21.

[0050] Figure 3 The schematic diagram shows the structure of the first body 21 in the integral elastic centralizer bow plate forming device 100 according to the present invention. Figure 3a for Figure 3 Internal sectional view.

[0051] In one embodiment, such as Figure 3 and Figure 3a As shown, the first body 21 is constructed as a cylindrical structure, and a conical surface matching the slider 23 is machined at the top of the first body 21. At the same time, at least six grooves 211 that allow the slider 23 to slide relative to each other are uniformly milled in the circumferential direction of the conical surface.

[0052] Figure 4 The schematic diagram illustrates the structure of the second body in the integral elastic centralizer bow plate forming device according to the present invention. Figure 4a for Figure 4 Internal sectional view.

[0053] In one embodiment, such as Figure 4 and Figure 4a As shown, the second body 22 is constructed as a cylindrical structure, and a conical surface matching the slider 23 is machined at the bottom end of the second body 22. At the same time, at least six grooves 221 that allow the slider 23 to slide relative to each other are evenly milled in the circumferential direction of the conical surface.

[0054] Preferably, the slide groove 211 is disposed on the first body 21, and the slide groove 221 is disposed on the second body 22. In this invention, both the slide groove 211 and the slide groove 221 are constructed as dovetail grooves.

[0055] In this invention, the outer diameter of the first body 21 is the same as the outer diameter of the second body 22, and the inclination angles of their conical surfaces are also the same, thereby ensuring that the slider 23 can slide smoothly and effectively on the two conical surfaces. Preferably, the dovetail groove on the first body 21 and the dovetail groove on the second body 22 have the same dimensions.

[0056] In one embodiment, the slider 23 is configured as a fan-shaped structure, and protrusions are provided at both ends (upper end face and lower end face) of the slider 23. Therefore, the slider 23 can form a sliding connection with the slide groove 211 and slide groove 221 respectively through the protrusions on both sides, which helps to complete the subsequent bow sheet forming work.

[0057] Preferably, the upper and lower surfaces of the slider 23 can respectively contact the conical surfaces of the first body 21 and the second body 22, thereby ensuring that the slider 23 can slide smoothly between the first body 21 and the second body 22, so as to improve the success rate of pressing the ribs 33 of the elastic stabilizer 30.

[0058] In one embodiment, such as Figures 1-3 As shown, multiple sliders 23 are arranged circumferentially along the first body 21 and the second body 22, and each slider 23 is aligned radially with a rib 33 of an elastic stabilizer 30. Therefore, when the second body 22 moves downward, all the ribs 33 of the elastic stabilizer 30 can move outward simultaneously, thereby improving the quality and efficiency of bow sheet forming.

[0059] Figure 8 for Figure 1 The partial view in the diagram schematically shows the structure of the guide rod 24.

[0060] In one embodiment of the present invention, such as Figure 2 and 4As shown, the molding mechanism also includes a guide rod 24. Preferably, the guide rod 24 is concentrically arranged within the first body 21, and the first end of the guide rod 24 is fixedly connected to the second body 22, while the second end of the guide rod 24 has a gap with the base 10 in the initial state. Therefore, under the action of the guide rod 24, the first body 21 is ensured to descend along the same axial direction (i.e., it will not tilt during the descent), thereby ensuring that all the ribs 33 of the elastic stabilizer 30 can move outward by the same distance simultaneously, making it easier to meet the molding size requirements.

[0061] Preferably, a circular hole is machined into the lower part of the first body 21 and the internal material is removed, thereby reducing the weight of the first body 21 to facilitate the assembly of the entire device. This also ensures that the device accurately springs back to its initial state under the force of the spring 25 when no downward force is applied to the second body 22. Furthermore, the hollow interior of the first body 21 provides ample space for the guide rod 24 to move.

[0062] In one embodiment, such as Figure 2 As shown, a limiting step 212 extending radially outward is formed on the inner wall of the first body 21, and the forming mechanism also includes a spring 25 sleeved on the guide rod 24. Preferably, the two ends of the spring 25 abut against the limiting step 212 and the second body 22 axially, respectively, thereby providing sufficient rebound force to the second body 22 through the spring 25, thus ensuring that the device has the ability to operate repeatedly.

[0063] In one embodiment, such as Figure 9 and 10 As shown, the elastic stabilizer 30 includes a first coupling 31 disposed below the rib 33, and the forming mechanism also includes a first positioning slider 26 fixed to the first body 21 by a limiting member. Preferably, the first positioning slider 26 can radially abut against the first coupling 31, so that the size of the first coupling 31 can be effectively limited during the bow plate forming process, thereby making it easier to obtain the elastic stabilizer 30 with the required forming size.

[0064] In this invention, a plurality of longitudinally arranged second guide rails 213 are provided on the first body 21, so the first positioning slider 26 can slide on the second guide rails 213 and can be positioned by limiting members. Preferably, the second guide rails 213 and the slide grooves 211 are staggered in the circumferential direction, thereby effectively preventing interference between them during bow sheet forming.

[0065] In one embodiment, such as Figure 10As shown, the elastic stabilizer 30 includes a second coupling 32 disposed above the rib 33. Preferably, a plurality of first guide rails 223 arranged longitudinally are provided on the second body 22, and the forming mechanism further includes a second positioning slider 27 fixed on the first guide rails 223 by a limiting member. In this invention, the second positioning slider 27 can radially abut against the second coupling 32, so that the size of the second coupling 32 can be effectively limited during the bow plate forming process, thereby making it easier to obtain the elastic stabilizer 30 with the required forming size.

[0066] Preferably, the present invention can not only adapt to different specifications of elastic stabilizers 30 by changing the thickness of the first positioning slider 26 and the second positioning slider 27; it can also adapt to different lengths of elastic stabilizers 30 by adjusting the position of the second positioning slider 27 on the first guide rail 223, thereby ensuring that the second positioning slider 27 is always radially abutting against the second coupling 32.

[0067] It is worth noting that since the second positioning slider 27 is fixed to the first guide rail 223 by the limiting member, the second positioning slider 27 can move synchronously with the second body 22, thus making it easier to adapt to the deformation process of the elastic stabilizer 30, that is, the second positioning slider 27 is always radially abutting against the second coupling 32.

[0068] In one embodiment of the present invention, six first positioning sliders 26 and six second positioning sliders 27 are provided, and the outer walls of both are constructed as arc-shaped structures. Therefore, during the bow plate forming operation, the first positioning sliders 26 and the second positioning sliders 27 can be tightly fitted with the first coupling 31 and the second coupling 32 of the elastic straightener 30, respectively, to ensure the production quality of the elastic straightener 30.

[0069] Preferably, the first guide rail 223 and the slide groove 221 are staggered in the circumferential direction, thereby effectively preventing them from interfering with each other during the forming of the bow sheet.

[0070] Figure 6 for Figure 1 The partial view in the diagram schematically shows the structure of the lifting platform 40;

[0071] In one embodiment, such as Figure 2 and 6 As shown, the integral elastic centralizer bow plate forming device 100 also includes a lifting platform 40 disposed between the base 10 and the second positioning slider 27. Preferably, the lifting platform 40 is connected to the first body 21 via an internal trapezoidal thread, and the lifting platform 40 can move up and down along the outer circle of the first body 21 via the thread, and can be fixed to the first body 21 by a set screw when it moves to a suitable position.

[0072] In this invention, for the elastic centralizer 30 to be successfully pressed, the slider 23 must be at the same center height as the elastic centralizer 30. In actual operation, the height of the unpressed elastic centralizer 30 is usually not fixed, and obviously the center height of the elastic centralizer 30 does not correspond to the slider 23. Therefore, the height of the lifting platform 40 needs to be adjusted before pressing to ensure that the center height of the slider 23 is aligned with that of the elastic centralizer 30, so that the pressed elastic centralizer 30 can meet the production quality requirements.

[0073] The working force of this device is provided by a press, which acts directly on the second body 22. Therefore, the second body 22 moves downward under the pushing action of the press, and is simultaneously centered under the action of the guide rod 24.

[0074] Preferably, during the downward movement of the second body 22, the spring 25 and the slider 23 are compressed simultaneously. This causes the slider 23 to move radially outward under the guidance of the grooves (i.e., grooves 211 and 221) to compress the ribs 33 of the elastic stabilizer 30, and to move all the ribs 33 outward in all directions, thereby completing the bow-shaped forming work of the elastic stabilizer 30. It is worth noting that after the bow-shaped forming work is completed, the press is turned off, and the second body 22 can return to its original state under the elastic force of the spring 25, so as to carry out the next bow-shaped forming work.

[0075] Compared with existing technologies, the advantages of this invention are:

[0076] Firstly, this invention allows for direct pressing and molding after annealing, eliminating the need to wait for workpiece cooling compared to traditional bow-plate forming processes. This effectively reduces processing steps and shortens processing time. Furthermore, this device enables one-time molding, ensuring all ribs 33 can move simultaneously outwards, thus guaranteeing a symmetrical structure of the elastic stabilizer 30 after molding and further improving the yield rate of this device.

[0077] Secondly, this invention eliminates the drawback of traditional integral elastic centralizer bow plates requiring manual pressing and forming sequentially. Instead, it uses a press to provide downward pressure, enabling all ribs 33 on the elastic centralizer 30 to be pressed and formed in one go, thereby improving processing efficiency. Furthermore, the automated operation not only improves processing quality but also effectively avoids safety accidents caused by manual operation during traditional bow plate pressing, thus offering higher safety performance.

[0078] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Those skilled in the art can easily make changes or modifications within the scope of the present invention, and such changes or modifications should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An integral elastic centralizer bow plate forming device, comprising: Base (10) A molding mechanism is disposed on the base (10), the molding mechanism comprising a first body (21) concentrically arranged within the base (10), a second body (22) disposed above the first body (21), and a slider (23) disposed between the first body (21) and the second body (22), and An elastic stabilizer (30) is sleeved outside the forming mechanism and abuts against the slider (23). The second body (22) is configured to move downward under the action of an external force, thereby causing the slider (23) to move radially outward so that the ribs (33) of the elastic stabilizer (30) deform. The elastic straightener (30) includes a first coupling (31) disposed below the rib (33), and the forming mechanism further includes a first positioning slider (26) fixed to the first body (21) by a limiting member, the first positioning slider (26) abutting against the first coupling (31). The elastic straightener (30) includes a second coupling (32) disposed above the rib (33), and a plurality of first guide rails (223) arranged longitudinally are provided on the second body (22). The forming mechanism also includes a second positioning slider (27) fixed on the first guide rail (223) by a limiting member and abutting against the second coupling (32). A plurality of second guide rails (213) arranged longitudinally are provided on the first body (21). The first positioning slider (26) slides on the second guide rail (213) and can be positioned by the limiting member.

2. The integral elastic centralizer bow plate forming device according to claim 1, characterized in that, A plurality of sliders (23) are arranged circumferentially along the first body (21) and the second body (22).

3. The integral elastic centralizer bow plate forming device according to claim 2, characterized in that, The slider (23) is radially aligned with the rib (33).

4. The integral elastic centralizer bow plate forming device according to claim 2, characterized in that, The slider (23) is constructed in a fan shape, and the ends of the first body (21) and the second body (22) are provided with conical structures corresponding to the slider (23).

5. The integral elastic centralizer bow plate forming device according to claim 4, characterized in that, Both ends of the slider (23) are provided with protrusions, and the joints of the first body (21) with the second body (22) and the slider (23) are provided with grooves for matching the protrusions.

6. The integral elastic centralizer bow plate forming device according to any one of claims 1 to 5, characterized in that, The forming mechanism also includes a guide rod (24) concentrically arranged in the first body (21), the first end of the guide rod (24) being fixedly connected to the second body (22), and the second end of the guide rod (24) having a gap between it and the base (10) in the initial state.

7. The integral elastic centralizer bow plate forming device according to claim 6, characterized in that, A limiting step (212) extending radially outward is formed on the inner wall of the first body (21), and the forming mechanism further includes a spring (25) sleeved on the guide rod (24) and abutting against the limiting step (212).

8. The integral elastic centralizer bow plate forming device according to claim 7, characterized in that, The integral elastic straightener bow plate forming device also includes a lifting platform (40) disposed between the base (10) and the second positioning slider (27), wherein the first body (21) and the lifting platform (40) are threadedly connected.

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