A tapping device for a grooved pipe

Abstract

The utility model relates to pipe fitting processing equipment technical field especially, a kind of groove pipe fitting tapping equipment, solve the existing technology in installation station mainly for three-way groove pipe fitting design, its structure size is fixed, only applicable to the positioning problem of specific structure workpiece. When facing round pipe or other non-standard shape groove pipe fitting, lack effective limiting structure and clamping adjustment function, leading to workpiece in tapping process easy to appear rotation, deviation, positioning fastening is poor, cannot realize stable and reliable processing support. The equipment includes base and mounting bracket, tapping module is connected in mounting bracket inside by horizontal moving module, the top of base both sides are equipped with riser, one side riser is movably connected with base by sliding structure. The utility model passes through multi-point linkage adjustment clamping structure, effectively solved the technical problem that round pipe or non-standard piece is easy to deviate in tapping process, positioning is difficult, improves processing accuracy and production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of pipe fitting processing equipment technology, and in particular to a grooved pipe fitting tapping equipment. Background Technology

[0002] Grooved pipe fittings are metal connectors widely used in building water supply and drainage, fire protection systems, and HVAC systems. They typically achieve quick connection and sealing by machining grooves and threaded holes on the ends or body of the fitting. Tapping, a key process in the manufacturing of grooved pipe fittings, is primarily used to machine internal threads on the fitting body to facilitate fastening connections with other piping components. Because grooved pipe fittings come in various shapes and uneven wall thicknesses, and require high thread precision, accurate workpiece positioning and stable clamping are crucial during the tapping process. Otherwise, problems such as thread misalignment, thread breakage, workpiece deformation, or even complete failure can easily occur.

[0003] Chinese utility model patent CN215941747U discloses a tapping device for grooved pipe fittings, including a tapping machine body. The tapping machine body has an installation station for supporting the workpiece. The installation station includes: a protrusion for supporting the inner arc surface of the workpiece; a limiting part for limiting the ear-shaped opening on the workpiece; and an opening part formed in the protrusion, corresponding to the central opening position of the workpiece for the tapping head to extend into. Through this structural design, stable support of the workpiece is achieved during the tapping process, which not only facilitates loading and unloading but also effectively counteracts the force exerted by the tapping head on the workpiece, preventing workpiece deformation and ensuring its appearance integrity.

[0004] However, in practical applications, this device still has significant technical shortcomings. The installation station is primarily designed for tee-type grooved pipe fittings, with fixed dimensions for its protrusions and limiting parts, making it only suitable for positioning workpieces with specific structures. When dealing with round pipes or other non-standard shaped grooved pipe fittings, the lack of effective limiting structures and clamping adjustment functions leads to problems such as workpiece rotation and displacement during tapping, resulting in poor positioning and fastening, and an inability to achieve stable and reliable machining support.

[0005] Therefore, to address the shortcomings of existing technologies, we urgently need a grooved pipe fitting tapping device to solve this problem. This device should be able to achieve rapid, stable, and universal positioning and clamping of grooved pipe fittings, improving the reliability and processing accuracy of the tapping process, thereby significantly increasing production efficiency and product quality. Simultaneously, it should better meet the actual needs of modern mass production and diversified pipe fitting processing, providing strong support for the efficient development of the grooved pipe fitting manufacturing industry. Summary of the Invention

[0006] The purpose of this invention is to provide a grooved pipe tapping device that solves the problem that existing installation stations are mainly designed for tee-type grooved pipe fittings, with fixed structural dimensions of the protrusions and limiting parts, which are only suitable for positioning workpieces with specific structures. When dealing with round pipes or other non-standard shaped grooved pipe fittings, the lack of effective limiting structures and clamping adjustment functions leads to problems such as workpiece rotation and displacement during tapping, resulting in poor positioning and fastening, and failing to achieve stable and reliable processing support.

[0007] To achieve the above objectives, this utility model provides a grooved pipe tapping device, including a base and a mounting bracket connected to the top of the base; The mounting bracket is internally connected to a tapping module via a horizontal moving module; vertical plates are provided on both sides of the top of the base, one vertical plate is fixedly connected to the top of the base, and the other vertical plate is connected to the top of the base via a sliding structure; a horizontal pushing component that cooperates with the sliding structure is provided on one side of the mounting bracket. Positioning cylinders are connected to the top of the two vertical plates on their adjacent sides. Several abutment plates are provided on the outer ring of the positioning cylinders. A lifting column with one end sliding through the side wall of the positioning cylinder is connected to the bottom of the abutment plate. A rotating component is connected to the end of the lifting column away from the abutment plate. A conical column is provided at the center of the positioning cylinder, which contacts several rotating components. The conical column is connected to the vertical plate through a horizontal adjustment structure. Each abutment plate is connected to the outer wall of the positioning cylinder through several elastic components.

[0008] The lifting column has a rotating groove at its end, and a contact wheel is rotatably connected inside the rotating groove. The horizontal adjustment structure includes a push cylinder installed on one side of the vertical plate, and the output end of the push cylinder is connected to the end of the conical column.

[0009] The sliding structure includes sliding sleeves on both sides of the vertical plate. The sliding sleeves are slidably connected to the top of the base, and one side of the sliding sleeve is connected to the side wall of the vertical plate through a connecting rod.

[0010] The elastic element includes a return spring, one end of which is connected to the abutment plate and the other end is connected to the side wall of the positioning cylinder.

[0011] One end of the connecting rod is fixedly connected to the side wall of the sliding sleeve, and the other end is fixedly connected to the side wall of the vertical plate with bolts.

[0012] The outer wall of the contact plate is connected to a rubber pad, and the horizontal pushing assembly includes an adjusting cylinder connected to one side of the mounting frame. The output end of the adjusting cylinder is connected to the side wall of the adjacent vertical plate.

[0013] This utility model discloses a grooved pipe tapping device. Addressing the problem that existing grooved pipe tapping devices are only suitable for tee-type workpieces and have unstable clamping for round pipes or other non-standard shaped pipes, this utility model achieves rapid and stable clamping of grooved pipes of various diameters and shapes by setting up an adjustable positioning cylinder in conjunction with a contact plate, lifting column, rotating component, and conical column to form a multi-point clamping structure. This significantly improves the versatility and adaptability of the device. Simultaneously, through the cooperation of the sliding structure and the horizontal pushing component, the two vertical plates can automatically center according to the workpiece size, further enhancing the symmetry and stability of the clamping. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0016] Figure 2 This is a structural schematic diagram of the base and mounting bracket according to an embodiment of the present utility model.

[0017] Figure 3 This is a schematic diagram of the connecting rod and sliding sleeve according to an embodiment of the present invention.

[0018] Figure 4 This is a structural schematic diagram of the lifting column and the contact plate according to an embodiment of the present utility model.

[0019] Figure 5 This is a schematic diagram of the conical column and the pushing cylinder according to an embodiment of the present utility model.

[0020] In the diagram: 1. Base; 2. Mounting bracket; 3. Tapping module; 4. Vertical plate; 5. Mounting block; 6. Guide rod; 7. Positioning cylinder; 8. Adjusting cylinder; 9. Sliding sleeve; 10. Connecting rod; 11. Contact plate; 12. Conical column; 13. Return spring; 14. Rotating groove; 15. Contact wheel; 16. Lifting column; 17. Pushing cylinder. Detailed Implementation

[0021] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention. Example 1

[0022] Please see Figure 1-5 As shown, a grooved pipe tapping device according to this embodiment includes a base 1 and a mounting bracket 2 connected to the top of the base 1; The mounting bracket 2 is connected to the tapping module 3 through a horizontal moving module; the top of the base 1 is provided with vertical plates 4 on both sides. One vertical plate 4 is fixedly connected to the top of the base 1 through a mounting block 5, and the other vertical plate 4 is connected to the top of the base 1 through a sliding structure. A horizontal pushing component that cooperates with the sliding structure is provided on one side of the mounting bracket 2. Positioning cylinders 7 are connected to the top of the two vertical plates 4 on their adjacent sides. Several abutment plates 11 are provided on the outer ring of the positioning cylinder 7. A lifting column 16 with one end sliding through the side wall of the positioning cylinder 7 is connected to the bottom of the abutment plate 11. A rotating component is connected to the end of the lifting column 16 away from the abutment plate 11. A conical column 12 is provided in the center of the positioning cylinder 7, which contacts several rotating components. The conical column 12 is connected to the vertical plate 4 through a horizontal adjustment structure. Each abutment plate 11 is connected to the outer wall of the positioning cylinder 7 through several elastic components.

[0023] The operator first places the grooved pipe fitting to be processed between the vertical plates 4 on both sides of the top of the base 1. One vertical plate 4 is fixedly connected, while the other is movably connected to the base 1 via a sliding structure. A horizontal pushing component on one side of the mounting bracket 2 drives the vertical plate 4 to slide along the base 1, achieving adaptive clamping and positioning for pipe fittings of different diameters. Each of the two vertical plates 4 has a positioning cylinder 7 at its top. Several contact plates 11 are arranged around the outer ring of the positioning cylinder 7 to contact and clamp the inner wall of the pipe fitting. A lifting column 16 is connected to the bottom of each contact plate 11. One end of the lifting column 16 slides through the side wall of the positioning cylinder 7 and connects to a rotating... Multiple rotating components work together to act on the conical column 12 located at the center of the positioning cylinder 7. The conical column 12 is connected to the vertical plate 4 through a horizontal adjustment structure. When the operator adjusts the position of the conical column 12, it will drive the rotating components to move in tandem, thereby changing the extension length of the contact plate 11 to accommodate pipe fittings of different diameters. At the same time, each contact plate 11 is also connected to the outer wall of the positioning cylinder 7 through an elastic component to provide a certain clamping rebound force to ensure stable and reliable clamping. The tapping module 3 is driven by the horizontal moving module in the mounting frame 2 and advances along the set trajectory to the opening position of the pipe fitting to complete the tapping operation. Example 2

[0024] Please see Figure 1-5As shown, in this embodiment of a grooved pipe tapping device, a rotating groove 14 is provided at the end of the lifting column 16. A contact wheel 15 is rotatably connected inside the rotating groove 14. The horizontal adjustment structure includes a push cylinder 17 installed on one side of the vertical plate 4. The output end of the push cylinder 17 is connected to the end of the conical column 12. Specifically, through the coordinated arrangement of the lifting column 16, the rotating groove 14, and the contact wheel 15, during the process of the device clamping grooved pipes of different inner diameters or shapes, the lifting column 16 slides inside the positioning cylinder 7 and drives the rotating groove 14 to move. The contact wheel 15 rotates freely in the rotating groove 14 and contacts the outer wall of the conical column 12. As the position of the conical column 12 changes, the contact wheel 15 rolls along its inclined surface, thereby pushing the lifting column 16 and the contact plate 11 to move outward or inward synchronously, achieving the effect of improving the clamping linkage accuracy and response speed, and making the clamping action more flexible and stable.

[0025] The elastic element includes a return spring 13. One end of the return spring 13 is connected to the abutment plate 11, and the other end is connected to the side wall of the positioning cylinder 7. Specifically, through the cooperative arrangement of the sliding sleeve 9, the guide rod 6, and the connecting rod 10, when clamping grooved pipe fittings of different sizes, one side of the vertical plate 4 slides on the guide rod 6 through the sliding sleeve 9 and is connected to the vertical plate 4 by the connecting rod 10, so that the vertical plate 4 can slide smoothly along the base 1 and automatically center, thereby enhancing the guiding accuracy and sliding stability during the clamping process and avoiding clamping failure or workpiece damage due to offset. Example 3

[0026] Please see Figure 1-5 As shown, in this embodiment, a grooved pipe tapping device has a sliding structure comprising sliding sleeves 9 disposed on both sides of a vertical plate 4. A guide rod 6, connected to the top of a base 1, is slidably connected inside the sliding sleeve 9. One side of the sliding sleeve 9 is connected to the side wall of the vertical plate 4 via a connecting rod 10. Specifically, through the cooperation of a pushing cylinder 17 and a conical column 12, when adjusting the clamping size, the operator activates the pushing cylinder 17, whose output end pushes the conical column 12 to move horizontally. The conical surface of the conical column 12 contacts multiple contact wheels 15, thereby driving all lifting columns 16 and contact plates 11 to synchronously adjust their extension lengths. This achieves rapid adjustment of the clamping diameter, improving clamping efficiency and automation, while ensuring the synchronization and stability of multi-point clamping.

[0027] One end of the connecting rod 10 is fixedly connected to the side wall of the sliding sleeve 9, and the other end is fixedly connected to the side wall of the vertical plate 4 by bolts. Specifically, through the cooperation between the return spring 13 and the abutment plate 11, during the clamping process, when the tapered column 12 pushes the abutment plate 11 to expand outward, the return spring 13 is stretched; when the clamping is completed or the workpiece is released, the return spring 13 rebounds, causing the abutment plate 11 to automatically reset, thereby improving the smoothness and reliability of the clamping and releasing actions, preventing damage to the workpiece surface from excessive clamping, and also improving the ease of use of the equipment.

[0028] The outer wall of the contact plate 11 is connected to a rubber pad. The horizontal pushing assembly includes an adjusting cylinder 8 connected to one side of the mounting frame 2. The output end of the adjusting cylinder 8 is connected to the side wall of the adjacent vertical plate 4. Specifically, through the arrangement of the adjusting cylinder 8 and the vertical plate 4, during the equipment clamping process, the adjusting cylinder 8 is installed on one side of the mounting frame 2, and its output end is connected to the side wall of the slidable vertical plate 4, driving the vertical plate 4 to slide along the base 1, thereby achieving rapid clamping or loosening of the grooved pipe fittings. This improves clamping efficiency and automation level, making the entire clamping process more efficient and labor-saving, and meeting the needs of mass production.

[0029] The working process of this equipment is as follows: The operator first places the grooved pipe fitting to be processed between the vertical plates 4 on both sides of the top of the base 1. One vertical plate 4 is a fixed structure, and the other vertical plate 4 is movably connected to the base 1 through a sliding structure. The sliding structure consists of sliding sleeves 9 set on both sides of the vertical plate 4. The sliding sleeve 9 is slidably connected to the guide rod 6 fixed to the top of the base 1, and is bolted to the side wall of the vertical plate 4 through the connecting rod 10, so that the vertical plate 4 on this side can slide smoothly along the guide rod 6 and achieve automatic centering; one side of the mounting frame 2 is equipped with A horizontal pushing component, specifically an adjusting cylinder 8, has its output end connected to the side wall of a movable vertical plate 4. This cylinder drives the vertical plate 4 to slide along the base 1, thereby achieving adaptive clamping and positioning of pipe fittings of different diameters. Positioning cylinders 7 are connected to the top of the sides of the two vertical plates 4 that are close to each other. Several contact plates 11 are evenly distributed around the outer circumference of the positioning cylinder 7. Each contact plate 11 has a lifting column 16 at its bottom, one end of which slides through the side wall of the positioning cylinder 7. The end of the lifting column 16 away from the contact plate 11 is connected to a rotating component. Multiple rotating components work together to achieve positioning. A conical column 12 is positioned at the center of cylinder 7. The conical column 12 is connected to the vertical plate 4 via a horizontal adjustment structure. This structure includes a push cylinder 17 mounted on one side of the vertical plate 4, with its output end connected to the end of the conical column 12. When the push cylinder 17 actuates, it moves the conical column 12 horizontally, causing its conical surface to push each contact wheel 15 outwards. This, in turn, causes the lifting column 16 and the contact plate 11 to synchronously adjust their extension lengths to accommodate pipe fittings of different inner diameters. Simultaneously, each contact plate 11 is also connected to the positioning cylinder via a return spring 13. The outer wall connection provides a rebound force during clamping, ensuring stable clamping without damaging the workpiece surface due to excessive tightness. In addition, the end of the lifting column 16 is provided with a rotating groove 14, and a contact wheel 15 is rotatably connected inside the rotating groove 14, allowing the contact wheel 15 to roll freely along the surface of the tapered column 12, improving the linkage response speed and clamping accuracy. Finally, the tapping module 3 is driven by the horizontal moving module in the mounting frame 2, advancing along the set trajectory to the opening position of the pipe to complete the tapping operation. The whole process is highly automated, stable in clamping, and has a wide range of applications.

[0030] Compared with existing technologies, this equipment has the following advantages: Addressing the problem that existing grooved pipe tapping equipment is only suitable for tee-type workpieces and has unstable clamping for round pipes or other non-standard shaped pipes, this invention achieves rapid and stable clamping of grooved pipes of various diameters and shapes through a multi-point linkage clamping structure consisting of a positioning cylinder 7, a contact plate 11, a lifting column 16, a rotating component, a conical column 12, and a pushing cylinder 17. This significantly improves the equipment's versatility and adaptability. The sliding sleeve 9, guide rod 6, and connecting rod 10 in the sliding structure work together to enhance the guiding accuracy and sliding stability during clamping, preventing clamping failure or workpiece damage due to offset. The linkage design between the cylinder 17 and the conical column 12 makes the clamping size adjustment more efficient and precise, improving clamping efficiency and automation. The reset spring 13 further improves the smoothness and reliability of clamping and releasing actions, preventing damage to the workpiece surface from excessive clamping. The design of the contact wheel 15 and the rotating groove 14 improves the linkage response speed and the flexibility of clamping actions. The cooperation between the adjusting cylinder 8 and the vertical plate 4 enables rapid clamping or releasing of grooved pipe fittings, greatly improving clamping efficiency and ease of operation. The rubber pad effectively protects the workpiece surface from scratches. The overall structure is reasonable and the functions are complete, meeting the actual needs of modern mass production and diversified grooved pipe fitting processing.

[0031] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A grooved pipe fitting tapping device, characterized in that, include: The base and the mounting bracket attached to the top of the base; The mounting bracket is internally connected to a tapping module via a horizontal moving module; vertical plates are provided on both sides of the top of the base, one vertical plate is fixedly connected to the top of the base, and the other vertical plate is connected to the top of the base via a sliding structure; a horizontal pushing component that cooperates with the sliding structure is provided on one side of the mounting bracket. Positioning cylinders are connected to the top of the two vertical plates on their adjacent sides. Several abutment plates are provided on the outer ring of the positioning cylinders. A lifting column with one end sliding through the side wall of the positioning cylinder is connected to the bottom of the abutment plate. A rotating component is connected to the end of the lifting column away from the abutment plate. A conical column is provided at the center of the positioning cylinder, which contacts several rotating components. The conical column is connected to the vertical plate through a horizontal adjustment structure. Each abutment plate is connected to the outer wall of the positioning cylinder through several elastic components.

2. The grooved pipe tapping equipment according to claim 1, characterized in that, The end of the lifting column is provided with a rotating groove, and a contact wheel is rotatably connected inside the rotating groove. The horizontal adjustment structure includes a push cylinder installed on one side of the vertical plate, and the output end of the push cylinder is connected to the end of the conical column.

3. The grooved pipe tapping equipment according to claim 1, characterized in that, The sliding structure includes sliding sleeves disposed on both sides of the vertical plate. The sliding sleeves are slidably connected to the top of the base, and one side of the sliding sleeve is connected to the side wall of the vertical plate through a connecting rod.

4. The grooved pipe tapping equipment according to claim 2, characterized in that, The elastic element includes a return spring, one end of which is connected to the abutment plate and the other end is connected to the side wall of the positioning cylinder.

5. The grooved pipe tapping equipment according to claim 3, characterized in that, One end of the connecting rod is fixedly connected to the side wall of the sliding sleeve, and the other end is fixedly connected to the side wall of the vertical plate with bolts.

6. The grooved pipe tapping equipment according to claim 5, characterized in that, The outer wall of the contact plate is connected to a rubber pad, and the horizontal pushing assembly includes an adjusting cylinder connected to one side of the mounting frame. The output end of the adjusting cylinder is connected to the side wall of the adjacent vertical plate.

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