Turning and clamping device for elbow joint part
By designing a turning and clamping device for pipe bending joint parts, and using the upper and lower covers to form a cuboid clamping fixture and clamping shaft, the problem of low efficiency in multiple clamping of pipe bending joints is solved, realizing efficient and low-cost CNC lathe machining, which is suitable for various machining needs of pipe bending joints.
Patent Information
- Application Number
- CN202520121454.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-01-17
AI Technical Summary
In the processing of pipe bends, existing technologies suffer from problems such as low efficiency due to multiple clamping operations, difficulty in ensuring the angle, and high costs. In particular, when using CNC lathes, the pipe bend parts lack effective clamping positions, resulting in low processing efficiency.
Design a turning and clamping device for bent pipe joint parts. The device consists of an upper cover and a lower cover forming a cuboid clamping fixture. It has a clamping cavity and a clamping shaft, which are fixed by bolts to ensure that the two 90° pipe ends of the bent pipe joint are clamped coaxially. It can be used with a three-jaw chuck of a CNC lathe for fast and stable clamping.
It achieves efficient assurance of pipe end perpendicularity of bend joints, improves processing efficiency, reduces secondary clamping time, is suitable for processing various pipe end structures, and reduces costs.
Smart Images
Figure CN223733887U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of CNC machining, and in particular to a turning and clamping device for bent pipe joint parts. Background Technology
[0002] During the processing of pipe bends, the pipe ends at both ends need to be machined into welding bevels or tapped to form connecting threads. The two pipe ends have angle requirements. If multiple clamping operations are performed, the efficiency is low and the angle is difficult to guarantee. If milling equipment is used, the efficiency is low and the cost is high. If a special machine is used, the cost is even higher. Usually, the industry uses CNC lathes for machining, using the three-jaw chuck of the CNC lathe for clamping. However, there is no clamping position for pipe bend parts. Therefore, it is necessary to design special tooling fixtures to hold the pipe bends and assist in the processing.
[0003] To address the above issues, we have provided a new technical solution. Utility Model Content
[0004] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a turning and clamping device for bent pipe joint parts, and the technical solution adopted is as follows:
[0005] A turning and clamping device for a bent pipe joint part includes an upper cover and a lower cover. After the upper and lower covers are closed and fixed, they form a cuboid clamping fixture. After the covers are closed, a clamping cavity for placing and clamping the bent pipe joint is formed between the two covers. Two adjacent sides of the clamping fixture are machined surfaces, and machined through holes communicating with the clamping cavity are provided on the machined surfaces. The other two adjacent sides of the clamping fixture are clamping surfaces, and clamping shafts are provided on the clamping surfaces.
[0006] According to an embodiment of the present invention, a turning and clamping device for a pipe joint part is provided, wherein the upper cover and the lower cover are connected and fixed by bolts.
[0007] According to an embodiment of the present invention, a turning and clamping device for a pipe joint part is provided, wherein the bolts include a pair and are respectively disposed at two opposite corners of the clamping fixture.
[0008] According to an embodiment of the present utility model, a turning and clamping device for a pipe joint part is provided, wherein the upper cover has a pin hole on its downward side and the lower cover has a pin that can be matched and inserted into the pin hole on its upward side.
[0009] According to an embodiment of the present utility model, a turning and clamping device for a pipe joint part is provided, wherein the upper cover is provided with an upper arc cavity on its downward side, and the lower cover is provided with a lower arc cavity on its upward side. After the upper cover and the lower cover are closed, the upper arc cavity and the lower arc cavity are combined to form a clamping inner cavity.
[0010] According to an embodiment of the present invention, a turning and clamping device for a pipe joint part has one clamping surface located on the upper cover and the other clamping surface located on the lower cover.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] This utility model consists of an upper cover and a lower cover forming a rectangular, fully enclosed clamping fixture. After clamping the bent pipe joint, the clamping fixture at the corresponding ends of the two pipe openings set at 90° is equipped with coaxial clamping shafts, ensuring that the two pipe openings are perpendicular to each other after processing. The processing angle is easy to guarantee. The hydraulic three-jaw chuck of the CNC lathe can quickly and stably clamp for processing, resulting in high processing efficiency. Moreover, no alignment is required, and the fixture can be quickly turned around for clamping and processing. This solves the problems of secondary clamping and deviation of the axis angle of the two pipe openings. It is suitable for processing different pipe opening structures (such as bevels, stops, internal and external threads, etc.) and has strong versatility. Attached Figure Description
[0013] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0014] Figure 1 This is a perspective view of some embodiments of the present utility model. Figure 1 ;
[0015] Figure 2 This is a perspective view of some embodiments of the present utility model. Figure 2 ;
[0016] Figure 3 This is a three-dimensional schematic diagram of the bent pipe joint being clamped in the clamping cavity in some embodiments of the present invention;
[0017] Figure 4 Explosions of some embodiments of this utility model Figure 1 ;
[0018] Figure 5 Explosions of some embodiments of this utility model Figure 2 .
[0019] Explanation of key component symbols:
[0020] 10. Upper cover; 20. Upper arc cavity; 30. Lower cover; 31. Pin; 40. Lower arc cavity; 50. Clamping cavity; 60. Clamping shaft; 70. Bolt; 80. Bend joint. Detailed Implementation
[0021] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.
[0022] The orientation shown in the accompanying drawings should not be construed as limiting the specific protection scope of this utility model, but is only for reference and understanding of preferred embodiments. The product components shown in the drawings can be changed in position, increased in number, or simplified in structure.
[0023] The “connection” described in the specification and the “connection” relationship between the components shown in the accompanying drawings can be understood as a fixed connection, a detachable connection, or a connection that forms an integral unit; it can be a direct connection or a connection through an intermediate medium. Those skilled in the art can understand the connection relationship according to the specific circumstances and can derive different implementation methods such as screwing, riveting, welding, snap-fitting, or embedding to suitably replace the connection.
[0024] The directional terms such as up, down, left, right, top, and bottom mentioned in the instruction manual and the directions shown in the attached drawings indicate that the components can directly contact each other or contact each other through other features; for example, "up" can mean directly above or diagonally above, or it simply means above other objects; other directions can be understood by analogy.
[0025] The materials used to manufacture solid-shaped parts as shown in the specification and drawings may be metallic, non-metallic, or other synthetic materials. The machining processes used for solid-shaped parts may include stamping, forging, wire cutting, laser cutting, casting, injection molding, CNC milling, 3D printing, machining, etc. Those skilled in the art may adapt or combine the above materials and manufacturing processes according to different processing conditions, costs, and precision requirements.
[0026] This utility model provides a turning and clamping device for pipe bending joint parts, such as... Figure 1 , 2 As shown in Figures 3, 4, and 5, the fixture includes an upper cover 10 and a lower cover 30. After the upper cover 10 and the lower cover 30 are closed and fixed, they form a cuboid clamping fixture. After the fixture is closed, a clamping cavity 50 is formed between the two for placing and clamping the bent pipe joint 80. Two adjacent sides of the clamping fixture are machined surfaces, and machined through holes communicating with the clamping cavity 50 are provided on the machined surfaces. The other two adjacent sides of the clamping fixture are clamping surfaces, and clamping shafts 60 are provided on the clamping surfaces.
[0027] In this utility model, the clamping fixture consists of an upper cover 10 and a lower cover 30. Before processing, the bent pipe joint 80 to be processed is placed in the clamping cavity 50 and then the clamping fixture is fixed. In this way, the two ends of the bent pipe joint 80 are exposed at the processing through hole. Then, the CNC lathe clamps the two clamping shafts 60 on the two clamping surfaces with their positions close to the flat end face, and processing can begin. Process one of the pipe openings. After processing, release the three-jaw clamp and clamp the other end of the clamping fixture at the corresponding 90 degrees, and then you can start processing the other pipe opening position. The upper cover 10 and lower cover 30 of this utility model form a rectangular integrated fully enclosed clamping fixture. After clamping the bent pipe joint 80, the clamping fixture at the corresponding ends of the two pipe openings of the bent pipe joint 80, which are set at 90°, is equipped with a coaxial clamping shaft 60, which ensures that the two pipe openings are perpendicular to each other after processing. The processing angle is easy to guarantee. The hydraulic three-jaw chuck of the CNC lathe can quickly and stably clamp for processing, which has high processing efficiency. Moreover, no alignment is required, and it can be quickly turned around for clamping and processing. It solves the problems of secondary clamping and deviation of the axis angle of the two pipe openings. It is suitable for processing different pipe opening structures (such as bevels, stops, internal and external threads, etc.) and has strong versatility.
[0028] Furthermore, in some embodiments of this utility model application, such as Figures 4 to 5 As shown, the upper cover 10 has a pin hole on its downward-facing side, and the lower cover 30 has a pin 31 on its upward-facing side that can be inserted into the pin hole.
[0029] Furthermore, in some embodiments of this utility model application, such as Figures 1 to 5 As shown, the upper cover 10 and the lower cover 30 are connected and fixed by bolts 70. The bolts 70 include a pair and are respectively located at two opposite corners of the clamping fixture.
[0030] Furthermore, in some embodiments of this utility model application, such as Figures 4 to 5 As shown, the upper cover 10 has an upper arc cavity 20 on its downward side, and the lower cover 30 has a lower arc cavity 40 on its upward side. After the upper cover 10 and the lower cover 30 are closed, the upper arc cavity 20 and the lower arc cavity 40 are combined to form a clamping inner cavity 50, with one clamping surface located on the upper cover 10 and the other clamping surface located on the lower cover 30.
[0031] When in use, first place the bent pipe connector 80 in the lower arc cavity 40 of the lower cover 30, then cover it with the upper cover 10. When closing, the pin 31 and the pin hole are aligned and positioned to achieve the closing and positioning. Then, use the bolt 70 to lock it in, thus clamping the workpiece to be processed in the clamping cavity 50.
[0032] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made to the present invention without departing from the principles and spirit of the present invention as defined by the claims. Therefore, the detailed description of the embodiments in this disclosure is for explanation only and not for limiting the present invention, but rather the scope of protection is defined by the content of the claims.
Claims
1. A turning and clamping device for bent pipe joint parts, characterized in that, The clamp tool comprises an upper cover body (10) and a lower cover body (30), and the upper cover body (10) and the lower cover body (30) form a cuboid-shaped clamp tool after being fixed together, and a clamp inner cavity (50) for placing a clamp elbow joint (80) is formed between the upper cover body (10) and the lower cover body (30) after being fixed together, two adjacent side faces of the clamp tool are machining faces, machining through holes communicated with the clamp inner cavity (50) are arranged on the machining faces, and the other two adjacent side faces of the clamp tool are clamping faces, and clamping shafts (60) are arranged on the clamping faces.
2. A bending joint part turning attachment according to claim 1, characterized in that The upper cover body (10) and the lower cover body (30) are connected and fixed together through bolts (70).
3. A bending sub assembly turning fixture according to claim 2, wherein, The bolts (70) comprise a pair and are arranged at opposite corners of the clamp tool.
4. The device according to claim 1, wherein A pin hole is arranged on a downward face of the upper cover body (10), and a pin rod (31) matched with the pin hole is arranged on an upward face of the lower cover body (30).
5. The device according to claim 1, wherein An upper arc cavity (20) is arranged on the downward face of the upper cover body (10), and a lower arc cavity (40) is arranged on the upward face of the lower cover body (30), and the upper arc cavity (20) and the lower arc cavity (40) form the clamp inner cavity (50) after the upper cover body (10) and the lower cover body (30) are fixed together.
6. A bending joint part turning attachment according to claim 1, wherein One of the clamping faces is arranged on the upper cover body (10), and the other clamping face is arranged on the lower cover body (30).