Multi-station pipe end forming assembly

Abstract

The utility model provides a multi-station pipe end forming assembly, and relates to the technical field of machining equipment. A pipe fitting clamping device and a pipe fitting forming device are arranged on a mounting plate; the pipe fitting forming device is connected to the mounting plate in a sliding mode and connected with a linear guide rail lead screw movement system driven by a servo motor, a modular machining plate is connected to the vertical lifting mechanism, and at least one group of reaming dies and / or hole shrinkage dies is mounted on the modular machining plate. The requirement for forming pipe orifices of different sizes is met, and the process requirement for up-down automatic transposition machining is met. The device has the advantages that reaming and shrinkage multi-station reciprocating and post-processing procedures can be efficiently completed, the machining process requirement for multiple reducing of the pipe end is met, modular design and a collaborative operation mechanism are adopted in the device, accurate displacement upper and lower station transposition control is achieved through a linear guide rail lead screw movement system, and the machining efficiency is improved. The pipe expanding and shrinking device has the advantages of being high in machining precision, efficient, compact and the like.

Description

Technical Field

[0001] This utility model relates to the field of mechanical processing equipment technology, and in particular to a multi-station tube end forming component. Background Technology

[0002] Expanding and shrinking metal pipes are key processes in metal plastic forming, with their core technology lying in controlling the mechanical properties of the pipe through geometric deformation to meet engineering requirements. Expanding the pipe uses mechanical forming or thermoforming to increase the pipe end diameter, primarily used to achieve leak-free connections between reducing pipe diameters, or to reduce local turbulence and pressure loss by adjusting the fluid cross-section. Shrinking the pipe, on the other hand, reduces the diameter to achieve material weight reduction while maintaining structural strength, making it suitable for weight-sensitive industrial applications. Both processes have significant application value in fluid transport systems and structural engineering.

[0003] The fully automatic double-head profile shrinking and forming machine disclosed in Chinese authorized patent number CN205436849U has the following technical solution: "It includes a frame, on which a drive device, a pipe clamp, and a pipe conveying mechanism are provided. The pipe conveying mechanism is located below the pipe clamp and includes a conveying power cylinder, a guide rail, and a lead screw. The conveying power cylinder is located at the first end of the guide rail, and the lead screw is fixed to the output shaft of the conveying power cylinder. On both sides of the guide rail, starting from the first end of the guide rail, a chamfering device, a shrinking device, and a forming device are arranged in sequence." Its working principle is that the pipe to be processed is fixed by the pipe conveying mechanism and then sequentially fed to the chamfering device, the shrinking device, and the forming device for processing.

[0004] While the aforementioned forming machine achieves continuous processing of chamfering, tube shrinking, and forming, its tube conveying mechanism and each processing unit are equipped with independent power cylinders, resulting in structural redundancy and low space utilization. This discrete power configuration not only increases the equipment's footprint and manufacturing cost but also affects the consistency of processing accuracy, thus restricting production efficiency and market competitiveness. Therefore, there is an urgent need to develop integrated multi-station tube end forming components, requiring optimization of the power system layout and process module integration to achieve a highly efficient and compact design for the processing equipment. Utility Model Content

[0005] This invention overcomes the shortcomings of the prior art and provides a multi-station tube end forming component. It adopts a modular design and collaborative operation mechanism, and achieves precise displacement control through a linear guide screw motion system. It features high processing accuracy, high efficiency and compactness.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] A multi-station pipe end forming assembly includes a mounting plate, on which a pipe clamping device and a pipe forming device disposed opposite to each other are provided;

[0008] The pipe forming device is slidably connected to the mounting plate and connected to the linear guide screw motion system driven by the servo motor. The linear guide screw motion system controls its displacement along the pipe axis. The pipe forming device includes a vertical lifting mechanism, on which a modular processing plate is connected. At least one set of expanding die and / or shrinking die is installed on the modular processing plate. A post-processing device is also provided at the extended end of the modular processing plate.

[0009] Furthermore, the pipe clamping device includes a base fixed on a mounting plate, on which a driving component driven by a cylinder for lifting is provided; it includes symmetrically arranged clamping blocks, with openings on opposite sides of the clamping blocks that are adapted to the outer diameter of the pipe; inclined guide rails are provided on both sides of the inner wall of the driving component, and the clamping blocks are correspondingly provided with inclined grooves that slide with the inclined guide rails; when the cylinder drives the driving component to lift, the interaction between the inclined guide rails and the inclined grooves causes the clamping blocks to open and close synchronously in the radial direction to clamp or release the pipe.

[0010] Furthermore, a pressure plate is fixed to the top of the base, and the pressure plate is located above the clamping block to limit the vertical displacement of the clamping block.

[0011] Furthermore, the linear guide rail lead screw motion system includes a rear seat fixed to the rear end of the mounting plate and a stand slidably connected to the mounting plate; it also includes a first servo motor and a first lead screw connected to the output shaft of the first servo motor via a coupling; the stand is provided with a first lead screw nut that is threadedly engaged with the first lead screw.

[0012] Furthermore, the support is connected to several guide rods, and a linear bearing is correspondingly provided on the rear seat. The guide rods and the linear bearings form a sliding pair.

[0013] Furthermore, the vertical lifting mechanism includes a second servo motor, the output shaft of which is connected to a drive pulley. The drive pulley is connected to a driven pulley via a synchronous belt, and the driven pulley is coaxially fixed with the second lead screw. A second lead screw nut that is threadedly engaged with the second lead screw is provided on the modular processing plate.

[0014] Furthermore, the post-processing device includes a third servo motor, the output of which is connected to a replaceable processing module, which is one of a chamfering cutter head, a forming roller group, or a floating deburring head.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model multi-station tube end forming component can efficiently complete hole expansion, hole reduction and post-processing. The device adopts a modular design and collaborative operation mechanism, and achieves precise displacement control through a linear guide rail screw motion system. It has the characteristics of high processing accuracy, high efficiency and compactness. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and, together with the embodiments of the present invention, are used to explain the present invention. They do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a perspective view of the multi-station tube end forming assembly described in this utility model;

[0019] Figure 2 This is a side view of the multi-station tube end forming assembly described in this utility model;

[0020] Figure 3 This is a cross-sectional view of the multi-station tube end forming assembly described in this utility model;

[0021] Figure 4 This is an exploded view of the pipe clamping device described in this utility model;

[0022] Figure 5 This is a cross-sectional view of the pipe clamping device described in this utility model.

[0023] In the picture:

[0024] 1. Mounting plate; 2. Pipe clamping device; 201. Base; 202. Cylinder; 203. Drive component; 2031. Inclined guide rail; 204. Clamping block; 2041. Inclined groove; 205. Opening; 206. Pressure plate; 4. Linear guide rail lead screw motion system; 401. Rear seat; 402. Stand; 403. First servo motor; 404. Coupling; 405. First lead screw; 406. First lead screw nut; 5. Vertical lifting mechanism; 501. Second servo motor; 502. Drive pulley; 503. Driven pulley; 504. Second lead screw; 505. Second lead screw nut; 6. Modular processing plate; 7. Hole expansion mold; 8. Hole reduction mold; 9. Guide rod; 10. Linear bearing; 11. Third servo motor; 12. Replaceable processing module. Detailed Implementation

[0025] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0026] like Figures 1 to 4 As shown, a multi-station pipe end forming assembly includes a mounting plate 1, which is used to fix the assembly on the machine base. The mounting plate 1 is provided with a pipe clamping device 2 and a pipe forming device arranged opposite to it. The pipe clamping device 2 is used to clamp and fix the metal pipe, and then the pipe forming device performs hole expansion, hole reduction or post-processing operations.

[0027] like Figure 4 as well as Figure 5 As shown, the pipe clamping device 2 includes a base 201 fixed on a mounting plate 1, and a driving component 203 driven to rise and fall by a cylinder 202 on the base 201. The cylinder 202 is connected to the lower part of the mounting plate 1 and is used to control the rising and falling of the driving component 203. It includes symmetrically arranged clamping blocks 204, which restrict movement within the base 201. The clamping blocks 204 have openings 205 on opposite sides that are adapted to the outer diameter of the pipe. Inclined guide rails 2031 are provided on both sides of the inner wall of the driving component 203, and the clamping blocks 204 are correspondingly provided with inclined grooves 2041 that slide with the inclined guide rails 2031. When the cylinder 202 drives the driving component 203 to rise and fall, the interaction between the inclined guide rails 2031 and the inclined grooves 2041 causes the clamping blocks 204 to open and close synchronously in the radial direction, causing the openings 205 to expand or contract, thereby clamping or releasing the pipe.

[0028] In addition, a pressure plate 206 is fixed on the top of the base 201. The pressure plate 206 is located above the clamping block 204 and is used to limit the vertical displacement of the clamping block 204 so that the lifting and lowering of the drive member 203 can only drive the clamping block 204 to open and close.

[0029] The pipe forming device is slidably connected to the mounting plate 1 and connected to the linear guide rail screw motion system 4 driven by the servo motor. The linear guide rail screw motion system 4 controls its displacement along the pipe axis. In this embodiment, the linear guide rail screw motion system 4 includes a rear seat 401 fixed to the rear end of the mounting plate 1 and a stand 402 slidably connected to the mounting plate 1. It also includes a first servo motor 403 and a first lead screw 405 connected to the output shaft of the first servo motor 403 via a coupling 404. The stand 402 is provided with a first lead screw nut 406 that is threadedly engaged with the first lead screw 405. Therefore, when the first servo motor 403 operates, it drives the first lead screw 405 to rotate through the coupling 404. Through the engagement with the first lead screw nut 406, the stand 402 is controlled to move closer to or further away from the pipe clamping device 2.

[0030] The stand 402 is slidably connected to the mounting plate 1 via a linear guide rail. To enhance the stability of the movement, several guide rods 9 are connected to the stand 402, and a linear bearing 10 is correspondingly provided on the rear seat 401. The guide rods 9 and the linear bearing 10 form a sliding pair, which helps to enhance the stability of the movement of the stand 402.

[0031] The pipe forming device includes a vertical lifting mechanism 5, on which a modular processing plate 6 is connected. Specifically, the vertical lifting mechanism 5 includes a second servo motor 501, the output shaft of which is connected to a drive pulley 502. The drive pulley 502 is connected to a driven pulley 503 via a synchronous belt, and the driven pulley 503 is coaxially fixed with a second lead screw 504. The modular processing plate 6 is provided with a second lead screw nut 505 that is threadedly engaged with the second lead screw 504. Thus, the operation of the second servo motor 501 directly drives the drive pulley 502 to rotate, which in turn drives the driven pulley 503 and the second lead screw 504 to move via the synchronous belt, ultimately controlling the lifting and lowering of the modular processing plate 6.

[0032] One design feature of this utility model is that at least one set of expanding molds 7 and / or shrinking molds 8 are installed on the modular processing plate 6. Different specifications of expanding molds 7 and / or shrinking molds 8 can be added according to actual conditions, so that the equipment can simultaneously adapt to expanding or shrinking operations. Furthermore, a post-processing device is provided at the extended end of the modular processing plate 6. The post-processing device includes a third servo motor 11, the output of which is connected to a replaceable processing module 12. The replaceable processing module 12 is one of a chamfering cutter head, a forming roller group, or a floating deburring head. The chamfering cutter head is used to chamfer the end of the metal tube after the expanding or shrinking operation. The forming roller group is used to perform shape calibration and accuracy correction on the end of the metal tube after the expanding or shrinking operation. The floating deburring head is used to refine the residual burrs on the tube end after the expanding or shrinking operation. The functions of the chamfering cutter head, the forming roller group, and the floating deburring head are existing technologies and will not be elaborated here. The invention of this application is that the expanding die 7, the shrinking die 8, and the post-processing device are all installed on the modular processing plate 6. The two-dimensional motion is controlled by the linear guide rail screw motion system and the vertical lifting mechanism. The power system layout is optimized, the integration is high, and the structure is compact. Through modular and collaborative technological innovation, the forming efficiency of metal tube ends is improved.

[0033] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-station tube end forming assembly, characterized in that, Includes a mounting plate (1), on which a pipe clamping device (2) and a pipe forming device opposite to it are provided; The pipe forming device is slidably connected to the mounting plate (1) and connected to the linear guide screw motion system (4) driven by the servo motor. The linear guide screw motion system (4) controls its displacement along the pipe axis. The pipe forming device includes a vertical lifting mechanism (5), on which a modular processing plate (6) is connected. At least one set of expanding mold (7) and / or shrinking mold (8) is installed on the modular processing plate (6). The extended end of the modular processing plate (6) is also provided with a post-processing device.

2. The multi-station tube end forming assembly according to claim 1, characterized in that, The pipe clamping device (2) includes a base (201) fixed on the mounting plate (1), and a driving component (203) driven to lift by a cylinder (202) is provided on the base (201); it includes symmetrically arranged clamping blocks (204), and the opposite sides of the clamping blocks (204) include openings (205) adapted to the outer diameter of the pipe fitting; the inner walls of the driving component (203) are provided with inclined guide rails (2031) on both sides, and the clamping blocks (204) are provided with inclined grooves (2041) that slide with the inclined guide rails (2031); when the cylinder (202) drives the driving component (203) to lift, the clamping blocks (204) open and close synchronously in the radial direction through the interaction between the inclined guide rails (2031) and the inclined grooves (2041) to clamp or release the pipe fitting.

3. The multi-station tube end forming assembly according to claim 2, characterized in that, A pressure plate (206) is fixed to the top of the base (201). The pressure plate (206) is located above the clamping block (204) and is used to limit the vertical displacement of the clamping block (204).

4. The multi-station tube end forming assembly according to claim 2, characterized in that, The linear guide rail screw motion system (4) includes a rear seat (401) fixed to the rear end of the mounting plate (1) and a stand (402) slidably connected to the mounting plate (1); it also includes a first servo motor (403) and a first screw (405) connected to the output shaft of the first servo motor (403) via a coupling (404); the stand (402) is provided with a first screw nut (406) that is threadedly engaged with the first screw (405).

5. The multi-station tube end forming assembly according to claim 4, characterized in that, The stand (402) is connected to several guide rods (9), and the rear seat (401) is provided with a corresponding linear bearing (10). The guide rods (9) and the linear bearing (10) form a sliding pair.

6. The multi-station tube end forming assembly according to claim 4, characterized in that, The vertical lifting mechanism (5) includes a second servo motor (501), whose output shaft is connected to a drive pulley (502). The drive pulley (502) is connected to a driven pulley (503) via a synchronous belt. The driven pulley (503) is coaxially fixed with the second lead screw (504). A second lead screw nut (505) is provided on the modular processing plate (6) and is threadedly engaged with the second lead screw (504).

7. The multi-station tube end forming assembly according to claim 1, characterized in that, The post-processing device includes a third servo motor (11), the output of which is connected to a replaceable processing module (12), which is one of a chamfering cutter head, a forming roller group or a floating deburring head.

Images