A joint deforming device for a profiled tube

Abstract

The utility model discloses a joint deformation processing device of special-shaped pipe. The device includes upper follow -up change positioning frame, lower extrusion straightening frame and extrusion drive mechanism. The upper follow -up change positioning frame includes first frame, a plurality of transversely superposed and each other sliding fit's rectangular pressing plate, first hold -up mechanism who establishes on first frame, and the lower extrusion straightening frame includes second frame, a plurality of transversely superposed and each other sliding fit's U type pressing plate, second hold -up mechanism who establishes on second frame, and U type pressing plate and rectangular pressing plate transversely one -to -one correspondence, and rectangular pressing plate partially places into U type pressing plate inboard, and a plurality of U type pressing plate and second frame longitudinal direction guiding sliding fit, and second hold -up mechanism acts on U type pressing plate one side and makes U type pressing plate and second frame frictional damping cooperation, and extrusion drive mechanism establishes between first frame and second frame and drives second frame relative first frame longitudinal movement, and the device can fast and conveniently realize the rectification of special-shaped pipe pipe orifice.

Description

Technical Field

[0001] The utility model relates to a pipe mouth correction and repair tool, in particular to a joint deformation treatment device for special-shaped pipes. Background Art

[0002] Existing special-shaped pipes are often widely used as railings and handrails. In order to prevent deformation of the special-shaped pipe mouth, the delivered special-shaped pipe mouth is often fixed with a steel plate plug. In actual construction, it is often necessary to cut and connect the special-shaped pipe according to the actual situation of the construction site. After the cut pipe mouth loses its constraint, it is easily deformed during carrying, moving or extrusion, which makes it difficult to maintain the original state of the pipe mouth due to the deformation of the connecting part when the pipe mouth is connected, and seriously affects the overall welding quality and appearance quality of the special-shaped pipe. Due to the special shape of the pipe mouth of the special-shaped pipe, such as the pipe mouth cross-sections of oval, waist-round, flat-mouthed, and semicircular petal shapes, it is difficult to restore the pipe mouth. Existing equipment cannot perform effective correction treatment for special-shaped pipe mouths. Utility Model Content

[0003] The object of the utility model is to provide a joint deformation treatment device for special-shaped pipes, which is used to solve the technical problem that the existing special-shaped pipe mouth has great difficulty in restoration and correction, and cannot guarantee the welding quality.

[0004] To achieve the above object, the utility model adopts the following technical solution: A joint deformation treatment device for special-shaped pipes, comprising: An upper conformal variable positioning frame, which comprises a first frame, a plurality of rectangular pressing plates stacked laterally and slidingly matched with each other, and a first holding mechanism arranged on the first frame, wherein the plurality of rectangular pressing plates are longitudinally guided and slidably matched with the first frame, and the first holding mechanism acts on one side of the rectangular pressing plates and enables the rectangular pressing plates to be in frictional damping fit with the first frame; A lower extrusion orthopedic frame, which comprises a second frame, a plurality of U-shaped pressing plates stacked laterally and slidingly matched with each other, and a second holding mechanism arranged on the second frame, wherein the second frame is located inside the first frame, the U-shaped pressing plates and the rectangular pressing plates are in one-to-one correspondence laterally, the rectangular pressing plates are partially placed inside the U-shaped pressing plates, the plurality of U-shaped pressing plates are longitudinally guided and slidably matched with the second frame, and the second holding mechanism acts on one side of the U-shaped pressing plates and enables the U-shaped pressing plates to be in frictional damping fit with the second frame; An extrusion driving mechanism, which is arranged between the first frame and the second frame and drives the second frame to move longitudinally relative to the first frame; Wherein, the space formed by the lower side of the rectangular pressing plate and the U-shaped pressing plate constitutes a clamping area for clamping the joint port.

[0005] Further, the first frame and the second frame are both in a sun shape and are provided with a cross beam in the middle.

[0006] Furthermore, both the rectangular pressure plate and the U-shaped pressure plate are provided with longitudinal strip grooves in the middle. The longitudinal strip grooves slide in conjunction with the crossbeam under normal conditions. Friction pads are provided on one side wall of the longitudinal strip grooves and on the corresponding crossbeam.

[0007] Furthermore, both the first and second supporting mechanisms include an adjusting screw and a supporting plate that rotatably engages with the end of the adjusting screw. The adjusting screw of the first supporting mechanism is arranged laterally and threadedly engaged with the first frame. The adjusting screw of the second supporting mechanism is arranged laterally and threadedly engaged with the second frame. The supporting plate of the first supporting mechanism is laterally guided and slidably engaged with the first frame and supports the rectangular pressure plate. The supporting plate of the second supporting mechanism is laterally guided and slidably engaged with the second frame and supports the U-shaped pressure plate.

[0008] Furthermore, the extrusion drive mechanism includes: The first U-shaped frame spans the second frame and is fixedly connected to the first frame; The second U-shaped frame is fixed to the upper side of the second frame and located directly below the first U-shaped frame; The lifting mechanism includes a screw that is longitudinally threaded into a first U-shaped frame and an adjusting rod located at the top of the screw. The lower end of the screw is rotatably engaged with and longitudinally locked into a second U-shaped frame.

[0009] Furthermore, the inner side of the side arm of the first U-shaped frame is provided with a guide groove, and the outer side of the side arm of the second U-shaped frame is provided with a protrusion that slides with the guide groove.

[0010] Compared with the prior art, the beneficial effects of this utility model are: In this device, the upper conformal positioning frame is equipped with multiple rectangular pressure plates, which can pre-adapt to the standard pipe end shape and lock the shape of the clamping contour after adaptation. The lower extrusion straightening frame is equipped with multiple U-shaped pressure plates. Utilizing the limiting and clamping relationship between the U-shaped pressure plates and the rectangular pressure plates, the clamping contour formed by the clamping surfaces of the multiple U-shaped pressure plates is the same as that of the rectangular pressure plates. After completing the above contour calibration, the deformed pipe end is clamped, thereby achieving the final straightening. Because the clamping has a relatively standard contour, the straightened pipe end is more likely to meet the standard requirements, which is conducive to obtaining better welding quality. This device has stronger adaptability to the shape of irregular pipes and can meet the straightening needs of irregular pipes with various pipe end cross-sections. The entire device is simple and convenient to operate and has greater potential for widespread application. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a top view of the structure of this utility model (with the extrusion drive mechanism removed); Figure 3 for Figure 2A schematic diagram of the structure after removing the rectangular and U-shaped pressure plates; Figure 4 This is a side view of the structure of this utility model; Figure 5 This is a schematic diagram of the structure of the second U-shaped frame in this utility model.

[0012] Wherein, 1-first frame; 2-rectangular pressure plate; 3-first supporting mechanism; 4-longitudinal strip groove; 5-friction plate layer; 6-adjusting screw; 7-supporting plate; 8-groove; 9-second frame; 10-U-shaped pressure plate; 11-second supporting mechanism; 12-first U-shaped frame; 13-second U-shaped frame; 14-screw; 15-adjusting rod; 16-guide groove; 17-protrusion. Detailed Implementation

[0013] The preferred embodiments of this utility model will be described below with reference to the accompanying drawings.

[0014] like Figures 1 to 5 As shown, a device for treating the deformation of a joint of an irregularly shaped tube is disclosed. The device includes an upper conforming positioning frame, a lower extrusion straightening frame, and an extrusion driving mechanism. The upper conforming positioning frame and the lower extrusion straightening frame cooperate to adapt to changes in the shape of the tube opening, obtaining a relatively standard corrected tube opening shape. Under the action of the extrusion driving mechanism, the deformed tube opening is clamped and corrected, providing quality assurance for subsequent welding.

[0015] The conformal positioning frame includes a first frame 1, rectangular pressure plates 2, and a first supporting mechanism 3. The first frame 1 has an overall H-shaped frame structure and serves as the basic frame, providing connection and stabilization for other components. A crossbeam, which is slatted in the middle of the first frame 1, is formed. Numerous rectangular pressure plates 2 are stacked laterally to form a block shape. The rectangular pressure plates 2 are made of tungsten steel plates with a thickness controlled between 1.5mm and 3mm. The length and width dimensions of the outer contour of the rectangular pressure plates 2, as well as the overall length after stacking, are flexibly adjusted according to the range of pipe opening sizes to be corrected. The lower edge of the rectangular pressure plate 2 should be smoothly rounded to form a clamping surface. The rectangular pressure plate 2 is guided by the crossbeam of the first frame 1 and cooperates with the crossbeam to achieve stop. Specifically, a longitudinal strip groove 4 is provided in the middle of the rectangular pressure plate 2. The longitudinal strip groove 4 is fitted on the crossbeam and can slide with the crossbeam under normal conditions. Friction pads 5 are provided on one side wall of the longitudinal strip groove 4 and on the corresponding crossbeam. The thickness of the friction pads 5 is controlled between 1 and 2 mm. The specific thickness is flexibly designed according to the magnitude of the force applied during correction. The friction pads 5 can be made of asbestos or asbestos-free fiber. When the first supporting mechanism 3 applies a squeezing force, it causes the rectangular pressure plate 2 to stop longitudinally with the crossbeam, achieving frame friction damping stop. The first supporting mechanism 3 is designed based on the first frame 1 and includes an adjusting screw 6 and a supporting plate 7 that rotates with the end of the adjusting screw 6. The adjusting screw 6 is arranged laterally and threaded into the first frame 1. The top plate 7 is rotatably engaged with the end of the adjusting screw 6. The top plate 7 is used to laterally press against the rectangular pressure plate 2, so that the rectangular pressure plate 2 stops longitudinally from moving against the crossbeam. Sliding grooves 8 are opened on both sides inside the first frame 1, corresponding to the two ends of the top plate 7. The top plate 7 slides against the sliding grooves 8, so that the top plate 7 can effectively press against the rectangular pressure plate 2. To prevent the adjusting screw 6 from rotating and loosening in subsequent operations, an additional nut can be fitted on the adjusting screw 6, and the nut is used to press the first frame 1 to lock it in place.

[0016] The lower compression straightening frame is structurally similar to the upper conformal positioning frame, comprising a second frame 9, U-shaped pressure plates 10, and a second supporting mechanism 11. The second frame 9 has the same structure as the first frame 1, also in a rectangular shape, but with reduced dimensions; the second frame 9 is placed inside the first frame 1. The U-shaped pressure plates 10 and rectangular pressure plates 2 are laterally corresponding one-to-one, with the rectangular pressure plates 2 partially inserted inside the U-shaped pressure plates 10; the space formed by the lower side of the rectangular pressure plates 2 and the U-shaped pressure plates 10 constitutes the clamping area for the connector port. The clamping surface formed by the U-shaped pressure plates 10 has a smooth transition, reducing damage to the pipe opening. Multiple U-shaped pressure plates 10 are longitudinally guided and slidably engaged with the second frame 9, in the same manner as the engagement between the rectangular pressure plates 2 and the first frame 1. The second supporting mechanism 11 acts on one side of the U-shaped pressure plates 10, causing the U-shaped pressure plates 10 and the second frame 9 to stop due to frictional damping; the method of stopping due to frictional damping is the same as the engagement between the rectangular pressure plates 2 and the first frame 1. The second supporting mechanism 11 and the second frame 9 cooperate in the same way as the first supporting mechanism 3 and the first frame 1.

[0017] The extrusion drive mechanism includes a first U-shaped frame 12, a second U-shaped frame 13, and a lifting mechanism. The first U-shaped frame 12 spans the second frame 9 and is fixedly connected to the first frame 1; the second U-shaped frame 13 is fixed to the upper side of the second frame 9 and located directly below the first U-shaped frame 12; the lifting mechanism includes a screw 14 that is longitudinally threaded with the first U-shaped frame 12, and an adjusting rod 15 fixed to the top of the screw 14. The lower end of the screw 14 is rotatably engaged with the second U-shaped frame 13 and longitudinally locked in place. By controlling the adjusting rod 15, the screw 14 is rotated, thereby causing the screw 14 to drive the second U-shaped frame 13 to move up and down, ultimately achieving the clamping and extrusion of the tube opening by the rectangular pressure plate 2 and the U-shaped pressure plate 10. The inner side of the side arm of the first U-shaped frame 12 is provided with a guide groove 16, and the outer side of the side arm of the second U-shaped frame 13 is provided with a protrusion 17 that slides with the guide groove 16. The protrusion 17 is square-shaped; this engagement allows the second U-shaped frame 13 to move stably up and down.

[0018] The method of use and working principle of this utility model are as follows: Before applying this device, a sample of intact, undamaged pipe at the opening needs to be taken for calibration to obtain a relatively standard local pipe opening shape. The specific operation is as follows: Loosen the two adjusting screws 6 to allow the rectangular pressure plate 2 and the U-shaped pressure plate 10 to slide longitudinally relative to the crossbeam; press the rectangular pressure plate 2 onto the outside of the pipe opening, while one U-shaped arm of the U-shaped pressure plate 10 extends into the inside of the pipe opening, pressing down on the entire device. Multiple stacked rectangular pressure plates 2 adapt to the changes in the pipe opening shape to form a suitable clamping profile. Under the action of gravity or manual pressing, the U-shaped pressure plate 10 moves downward, causing another U-shaped arm to press onto the upper side of the rectangular pressure plate 2. At this point, the U-shaped pressure plate 10 forms a clamping surface with the same profile. Finally, tighten the adjusting screws 6 to fix the U-shaped pressure plate 10 relative to the second frame 9 and the rectangular pressure plate 2 relative to the first frame 1. This completes the calibration and sampling process. The device performs clamping and correction by placing the clamping area of ​​the device in the correction area of ​​the pipe opening, and then rotating the screw 14. The second frame 9 drives the U-shaped pressure plate 10 to move upward relative to the rectangular pressure plate 2, thereby squeezing and deforming the deformation area to achieve correction.

Claims

1. A device for treating the deformation of a joint in a non-circular tube, characterized in that, Comprising: an upper contour-following variable positioning frame, which comprises a first frame, a plurality of rectangular pressing plates that are stacked horizontally and are in sliding fit with each other, and a first holding mechanism arranged on the first frame, wherein the plurality of rectangular pressing plates are in longitudinal guiding sliding fit with the first frame, and the first holding mechanism acts on one side of the rectangular pressing plates to enable the rectangular pressing plates to be in frictional damping fit with the first frame; a lower extrusion orthopedic frame, which comprises a second frame, a plurality of U-shaped pressing plates that are stacked horizontally and are in sliding fit with each other, and a second holding mechanism arranged on the second frame, wherein the second frame is located inside the first frame, the U-shaped pressing plates are in one-to-one correspondence with the rectangular pressing plates in the transverse direction, part of the rectangular pressing plates are placed inside the U-shaped pressing plates, the plurality of U-shaped pressing plates are in longitudinal guiding sliding fit with the second frame, and the second holding mechanism acts on one side of the U-shaped pressing plates to enable the U-shaped pressing plates to be in frictional damping fit with the second frame; an extrusion driving mechanism, which is arranged between the first frame and the second frame and drives the second frame to move longitudinally relative to the first frame; wherein a space formed by the lower side of the rectangular pressing plate and the U-shaped pressing plate constitutes a clamping area for clamping a joint end.

2. The deformation processing apparatus as described in claim 1, characterized in that, Both the first frame and the second frame are in a shape of a Chinese character 'ri', and a cross beam is formed in the middle thereof.

3. The deformation processing device as described in claim 2, characterized in that, Longitudinal strip-shaped sliding grooves are respectively formed in the middle parts of the rectangular pressing plates and the U-shaped pressing plates, the longitudinal strip-shaped sliding grooves are normally in sliding fit with the cross beam, and friction sheet layers are respectively arranged on one side wall of each longitudinal strip-shaped sliding groove and the corresponding cross beam.

4. The deformation processing device as described in claim 2, characterized in that, Each of the first holding mechanism and the second holding mechanism comprises an adjusting screw and a holding plate rotationally fitted with the end of the adjusting screw, the adjusting screw of the first holding mechanism is arranged horizontally and is in threaded fit with the first frame, the adjusting screw of the second holding mechanism is arranged horizontally and is in threaded fit with the second frame, the holding plate of the first holding mechanism is in transverse guiding sliding fit with the first frame and holds the rectangular pressing plate, and the holding plate of the second holding mechanism is in transverse guiding sliding fit with the second frame and holds the U-shaped pressing plate.

5. The deformation processing apparatus as described in claim 2, characterized in that, The extrusion driving mechanism comprises: a first U-shaped frame, which spans the second frame and is fixedly connected with the first frame; a second U-shaped frame, which is fixed on the upper side of the second frame and is located directly below the first U-shaped frame; a lifting mechanism, which comprises a screw rod in longitudinal threaded fit with the first U-shaped frame and an adjusting rod arranged at the top end of the screw rod, wherein the lower end of the screw rod is in rotational fit and longitudinal clamping fit with the second U-shaped frame.

6. The deformation processing apparatus as described in claim 5, characterized in that, A guiding groove is formed on the inner side of the side arm of the first U-shaped frame, and a protruding block in sliding fit with the guiding groove is arranged on the outer side of the side arm of the second U-shaped frame.

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